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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

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

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

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

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

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

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  93.                            not part of the dynamic linker search path

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

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

  96. 

  97. Licensing options:

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

  99.                            and binaries will be under GPL [no]

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

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

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

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

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

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

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

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

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

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

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

  113. 

  114. Program options:

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

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

  119. 

  120. Documentation options:

  121.   --disable-doc            do not build documentation

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

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

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

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

  126. 

  127. Component options:

  128.   --disable-avdevice       disable libavdevice build

  129.   --disable-avcodec        disable libavcodec build

  130.   --disable-avformat       disable libavformat build

  131.   --disable-swresample     disable libswresample build

  132.   --disable-swscale        disable libswscale build

  133.   --disable-postproc       disable libpostproc build

  134.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  140.   --disable-dct            disable DCT code

  141.   --disable-dwt            disable DWT code

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

  143.   --disable-lsp            disable LSP code

  144.   --disable-lzo            disable LZO decoder code

  145.   --disable-mdct           disable MDCT code

  146.   --disable-rdft           disable RDFT code

  147.   --disable-fft            disable FFT code

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

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

  150. 

  151. Individual component options:

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

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

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

  155.   --disable-encoders       disable all encoders

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

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

  158.   --disable-decoders       disable all decoders

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

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

  161.   --disable-hwaccels       disable all hwaccels

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

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

  164.   --disable-muxers         disable all muxers

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

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

  167.   --disable-demuxers       disable all demuxers

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

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

  170.   --disable-parsers        disable all parsers

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

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

  173.   --disable-bsfs           disable all bitstream filters

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

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

  176.   --disable-protocols      disable all protocols

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

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

  179.   --disable-indevs         disable input devices

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

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

  182.   --disable-outdevs        disable output devices

  183.   --disable-devices        disable all devices

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

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

  186.   --disable-filters        disable all filters

  187. 

  188. External library support:

  189. 

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

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

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

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

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

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

  196. 

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

  198.   libraries must be explicitly enabled.

  199. 

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

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

  202. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  221.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  228.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  269.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  305. 

  306.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  327. 

  328. Toolchain options:

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

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

  331.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  382. 

  383. Advanced options (experts only):

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

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

  386.   --disable-symver         disable symbol versioning

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

  388.   --disable-safe-bitstream-reader

  389.                            disable buffer boundary checking in bitreaders

  390.                            (faster, but may crash)

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

  392. 

  393. Optimization options (experts only):

  394.   --disable-asm            disable all assembly optimizations

  395.   --disable-altivec        disable AltiVec optimizations

  396.   --disable-vsx            disable VSX optimizations

  397.   --disable-power8         disable POWER8 optimizations

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

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

  400.   --disable-mmx            disable MMX optimizations

  401.   --disable-mmxext         disable MMXEXT optimizations

  402.   --disable-sse            disable SSE optimizations

  403.   --disable-sse2           disable SSE2 optimizations

  404.   --disable-sse3           disable SSE3 optimizations

  405.   --disable-ssse3          disable SSSE3 optimizations

  406.   --disable-sse4           disable SSE4 optimizations

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

  408.   --disable-avx            disable AVX optimizations

  409.   --disable-xop            disable XOP optimizations

  410.   --disable-fma3           disable FMA3 optimizations

  411.   --disable-fma4           disable FMA4 optimizations

  412.   --disable-avx2           disable AVX2 optimizations

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

  414.   --disable-aesni          disable AESNI optimizations

  415.   --disable-armv5te        disable armv5te optimizations

  416.   --disable-armv6          disable armv6 optimizations

  417.   --disable-armv6t2        disable armv6t2 optimizations

  418.   --disable-vfp            disable VFP optimizations

  419.   --disable-neon           disable NEON optimizations

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

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

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

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

  424.   --disable-msa            disable MSA optimizations

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

  426.   --disable-mmi            disable Loongson SIMD optimizations

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

  428. 

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

  430.   --disable-debug          disable debugging symbols

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

  432.   --disable-optimizations  disable compiler optimizations

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

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

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

  436.                            2 causes a slowdown at runtime.

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

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

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

  440.                            Cannot be combined with --target-exec

  441.   --enable-ftrapv          Trap arithmetic overflows

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

  443.                            \$FATE_SAMPLES at make invocation time.

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

  445.                            used only for debugging purposes)

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

  447.                            should be used only for debugging purposes)

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

  449.   --disable-random

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

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

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

  453.                            (group) and PROB the probability associated with

  454.                            NAME (default 0.5).

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

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

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

  458.   --enable-osfuzz          Enable building fuzzer tool

  459.   --libfuzzer=PATH         path to libfuzzer

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

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

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

  463. 

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

  465. EOF

  466.   exit 0

  467. }

  468. 

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

  470.     ncolors=$(tput colors)

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

  472.         bold_color=$(tput bold)

  473.         warn_color=$(tput setaf 3)

  474.         error_color=$(tput setaf 1)

  475.         reset_color=$(tput sgr0)

  476.     fi

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

  478.     ncols=$(tput cols)

  479. fi

  480. : ${ncols:=72}

  481. 

  482. log(){

  483.     echo "$@" >> $logfile

  484. }

  485. 

  486. log_file(){

  487.     log BEGIN $1

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

  489.     log END $1

  490. }

  491. 

  492. warn(){

  493.     log "WARNING: $*"

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

  495. }

  496. 

  497. die(){

  498.     log "$@"

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

  500.     cat <<EOF

  501. 

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

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

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

  505. EOF

  506.     if disabled logging; then

  507.         cat <<EOF

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

  509. include the log this produces with your report.

  510. EOF

  511.     else

  512.         cat <<EOF

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

  514. solve the problem.

  515. EOF

  516.     fi

  517.     exit 1

  518. }

  519. 

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

  521. toupper(){

  522.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  523. }

  524. 

  525. tolower(){

  526.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  527. }

  528. 

  529. c_escape(){

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

  531. }

  532. 

  533. sh_quote(){

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

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

  536.     echo "$v"

  537. }

  538. 

  539. cleanws(){

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

  541. }

  542. 

  543. filter(){

  544.     pat=$1

  545.     shift

  546.     for v; do

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

  548.     done

  549. }

  550. 

  551. filter_out(){

  552.     pat=$1

  553.     shift

  554.     for v; do

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

  556.     done

  557. }

  558. 

  559. map(){

  560.     m=$1

  561.     shift

  562.     for v; do eval $m; done

  563. }

  564. 

  565. add_suffix(){

  566.     suffix=$1

  567.     shift

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

  569. }

  570. 

  571. remove_suffix(){

  572.     suffix=$1

  573.     shift

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

  575. }

  576. 

  577. set_all(){

  578.     value=$1

  579.     shift

  580.     for var in $*; do

  581.         eval $var=$value

  582.     done

  583. }

  584. 

  585. set_weak(){

  586.     value=$1

  587.     shift

  588.     for var; do

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

  590.     done

  591. }

  592. 

  593. sanitize_var_name(){

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

  595. }

  596. 

  597. set_sanitized(){

  598.     var=$1

  599.     shift

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

  601. }

  602. 

  603. get_sanitized(){

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

  605. }

  606. 

  607. pushvar(){

  608.     for pvar in $*; do

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

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

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

  612.     done

  613. }

  614. 

  615. popvar(){

  616.     for pvar in $*; do

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

  618.         test $level = 0 && continue

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

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

  621.         eval ${pvar}_level=$level

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

  623.     done

  624. }

  625. 

  626. request(){

  627.     for var in $*; do

  628.         eval ${var}_requested=yes

  629.         eval $var=

  630.     done

  631. }

  632. 

  633. enable(){

  634.     set_all yes $*

  635. }

  636. 

  637. disable(){

  638.     set_all no $*

  639. }

  640. 

  641. enable_weak(){

  642.     set_weak yes $*

  643. }

  644. 

  645. disable_weak(){

  646.     set_weak no $*

  647. }

  648. 

  649. enable_sanitized(){

  650.     for var; do

  651.         enable $(sanitize_var_name $var)

  652.     done

  653. }

  654. 

  655. disable_sanitized(){

  656.     for var; do

  657.         disable $(sanitize_var_name $var)

  658.     done

  659. }

  660. 

  661. do_enable_deep(){

  662.     for var; do

  663.         enabled $var && continue

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

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

  666.         pushvar var sgs

  667.         enable_deep $sel

  668.         popvar sgs

  669.         enable_deep_weak $sgs

  670.         popvar var

  671.     done

  672. }

  673. 

  674. enable_deep(){

  675.     do_enable_deep $*

  676.     enable $*

  677. }

  678. 

  679. enable_deep_weak(){

  680.     for var; do

  681.         disabled $var && continue

  682.         pushvar var

  683.         do_enable_deep $var

  684.         popvar var

  685.         enable_weak $var

  686.     done

  687. }

  688. 

  689. requested(){

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

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

  692. }

  693. 

  694. enabled(){

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

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

  697. }

  698. 

  699. disabled(){

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

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

  702. }

  703. 

  704. enabled_all(){

  705.     for opt; do

  706.         enabled $opt || return 1

  707.     done

  708. }

  709. 

  710. disabled_all(){

  711.     for opt; do

  712.         disabled $opt || return 1

  713.     done

  714. }

  715. 

  716. enabled_any(){

  717.     for opt; do

  718.         enabled $opt && return 0

  719.     done

  720. }

  721. 

  722. disabled_any(){

  723.     for opt; do

  724.         disabled $opt && return 0

  725.     done

  726.     return 1

  727. }

  728. 

  729. set_default(){

  730.     for opt; do

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

  732.     done

  733. }

  734. 

  735. is_in(){

  736.     value=$1

  737.     shift

  738.     for var in $*; do

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

  740.     done

  741.     return 1

  742. }

  743. 

  744. check_deps(){

  745.     for cfg; do

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

  747.         disabled ${cfg}_checking && continue

  748.         enable ${cfg}_checking

  749. 

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

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

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

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

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

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

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

  757. 

  758.         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

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

  760.         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  761. 

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

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

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

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

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

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

  768. 

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

  770. 

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

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

  773.             is_in $dep $LIBRARY_LIST && continue

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

  775.         done

  776. 

  777.         disable ${cfg}_checking

  778.     done

  779. }

  780. 

  781. print_config(){

  782.     pfx=$1

  783.     files=$2

  784.     shift 2

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

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

  787.         {

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

  789.             v = \$2;

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

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

  792.             for (f in files) {

  793.                 file = files[f];

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

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

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

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

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

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

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

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

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

  803.                     yesno = \$2;

  804.                     c2 = tolower(c);

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

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

  807.                 }

  808.             }

  809.         }"

  810. }

  811. 

  812. print_enabled(){

  813.     suf=$1

  814.     shift

  815.     for v; do

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

  817.     done

  818. }

  819. 

  820. append(){

  821.     var=$1

  822.     shift

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

  824. }

  825. 

  826. prepend(){

  827.     var=$1

  828.     shift

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

  830. }

  831. 

  832. unique(){

  833.     var=$1

  834.     uniq_list=""

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

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

  837.     done

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

  839. }

  840. 

  841. resolve(){

  842.     var=$1

  843.     tmpvar=

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

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

  846.     done

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

  848. }

  849. 

  850. add_cppflags(){

  851.     append CPPFLAGS "$@"

  852. }

  853. 

  854. add_cflags(){

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

  856. }

  857. 

  858. add_cflags_headers(){

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

  860. }

  861. 

  862. add_cxxflags(){

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

  864. }

  865. 

  866. add_asflags(){

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

  868. }

  869. 

  870. add_objcflags(){

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

  872. }

  873. 

  874. add_ldflags(){

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

  876. }

  877. 

  878. add_ldexeflags(){

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

  880. }

  881. 

  882. add_ldsoflags(){

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

  884. }

  885. 

  886. add_stripflags(){

  887.     append ASMSTRIPFLAGS "$@"

  888. }

  889. 

  890. add_extralibs(){

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

  892. }

  893. 

  894. add_host_cppflags(){

  895.     append host_cppflags "$@"

  896. }

  897. 

  898. add_host_cflags(){

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

  900. }

  901. 

  902. add_host_ldflags(){

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

  904. }

  905. 

  906. add_compat(){

  907.     append compat_objs $1

  908.     shift

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

  910. }

  911. 

  912. check_cmd(){

  913.     log "$@"

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

  915. }

  916. 

  917. check_stat(){

  918.     log check_stat "$@"

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

  920. }

  921. 

  922. cc_o(){

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

  924. }

  925. 

  926. cc_e(){

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

  928. }

  929. 

  930. check_cc(){

  931.     log check_cc "$@"

  932.     cat > $TMPC

  933.     log_file $TMPC

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

  935. }

  936. 

  937. check_cxx(){

  938.     log check_cxx "$@"

  939.     cat > $TMPCPP

  940.     log_file $TMPCPP

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

  942. }

  943. 

  944. check_objcc(){

  945.     log check_objcc "$@"

  946.     cat > $TMPM

  947.     log_file $TMPM

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

  949. }

  950. 

  951. check_cpp(){

  952.     log check_cpp "$@"

  953.     cat > $TMPC

  954.     log_file $TMPC

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

  956. }

  957. 

  958. as_o(){

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

  960. }

  961. 

  962. check_as(){

  963.     log check_as "$@"

  964.     cat > $TMPS

  965.     log_file $TMPS

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

  967. }

  968. 

  969. check_inline_asm(){

  970.     log check_inline_asm "$@"

  971.     name="$1"

  972.     code="$2"

  973.     shift 2

  974.     disable $name

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

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

  977. EOF

  978. }

  979. 

  980. check_inline_asm_flags(){

  981.     log check_inline_asm_flags "$@"

  982.     name="$1"

  983.     code="$2"

  984.     flags=''

  985.     shift 2

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

  987.       append flags $1

  988.       shift

  989.     done;

  990.     disable $name

  991.     cat > $TMPC <<EOF

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

  993. EOF

  994.     log_file $TMPC

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

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

  997. }

  998. 

  999. check_insn(){

  1000.     log check_insn "$@"

  1001.     check_inline_asm ${1}_inline "\"$2\""

  1002.     echo "$2" | check_as && enable ${1}_external || disable ${1}_external

  1003. }

  1004. 

  1005. check_x86asm(){

  1006.     log check_x86asm "$@"

  1007.     echo "$1" > $TMPS

  1008.     log_file $TMPS

  1009.     shift 1

  1010.     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS

  1011. }

  1012. 

  1013. ld_o(){

  1014.     eval printf '%s\\n' $LD_O

  1015. }

  1016. 

  1017. check_ld(){

  1018.     log check_ld "$@"

  1019.     type=$1

  1020.     shift 1

  1021.     flags=$(filter_out '-l*|*.so' $@)

  1022.     libs=$(filter '-l*|*.so' $@)

  1023.     check_$type $($cflags_filter $flags) || return

  1024.     flags=$($ldflags_filter $flags)

  1025.     libs=$($ldflags_filter $libs)

  1026.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1027. }

  1028. 

  1029. print_include(){

  1030.     hdr=$1

  1031.     test "${hdr%.h}" = "${hdr}" &&

  1032.         echo "#include $hdr"    ||

  1033.         echo "#include <$hdr>"

  1034. }

  1035. 

  1036. check_code(){

  1037.     log check_code "$@"

  1038.     check=$1

  1039.     headers=$2

  1040.     code=$3

  1041.     shift 3

  1042.     {

  1043.         for hdr in $headers; do

  1044.             print_include $hdr

  1045.         done

  1046.         echo "int main(void) { $code; return 0; }"

  1047.     } | check_$check "$@"

  1048. }

  1049. 

  1050. check_cppflags(){

  1051.     log check_cppflags "$@"

  1052.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1053. #include <stdlib.h>

  1054. EOF

  1055. }

  1056. 

  1057. test_cflags(){

  1058.     log test_cflags "$@"

  1059.     set -- $($cflags_filter "$@")

  1060.     check_cc "$@" <<EOF

  1061. int x;

  1062. EOF

  1063. }

  1064. 

  1065. check_cflags(){

  1066.     log check_cflags "$@"

  1067.     test_cflags "$@" && add_cflags "$@"

  1068. }

  1069. 

  1070. check_cxxflags(){

  1071.     log check_cxxflags "$@"

  1072.     set -- $($cflags_filter "$@")

  1073.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1074. int x;

  1075. EOF

  1076. }

  1077. 

  1078. test_objcflags(){

  1079.     log test_objcflags "$@"

  1080.     set -- $($objcflags_filter "$@")

  1081.     check_objcc "$@" <<EOF

  1082. int x;

  1083. EOF

  1084. }

  1085. 

  1086. check_objcflags(){

  1087.     log check_objcflags "$@"

  1088.     test_objcflags "$@" && add_objcflags "$@"

  1089. }

  1090. 

  1091. test_ldflags(){

  1092.     log test_ldflags "$@"

  1093.     set -- $($ldflags_filter "$@")

  1094.     check_ld "cc" "$@" <<EOF

  1095. int main(void){ return 0; }

  1096. EOF

  1097. }

  1098. 

  1099. check_ldflags(){

  1100.     log check_ldflags "$@"

  1101.     test_ldflags "$@" && add_ldflags "$@"

  1102. }

  1103. 

  1104. test_stripflags(){

  1105.     log test_stripflags "$@"

  1106.     # call check_cc to get a fresh TMPO

  1107.     check_cc <<EOF

  1108. int main(void) { return 0; }

  1109. EOF

  1110.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1111. }

  1112. 

  1113. check_stripflags(){

  1114.     log check_stripflags "$@"

  1115.     test_stripflags "$@" && add_stripflags "$@"

  1116. }

  1117. 

  1118. check_header(){

  1119.     log check_header "$@"

  1120.     headers=$1

  1121.     shift

  1122.     disable_sanitized $headers

  1123.     {

  1124.         for hdr in $headers; do

  1125.             print_include $hdr

  1126.         done

  1127.         echo "int x;"

  1128.     } | check_cpp "$@" && enable_sanitized $headers

  1129. }

  1130. 

  1131. check_header_objcc(){

  1132.     log check_header_objcc "$@"

  1133.     rm -f -- "$TMPO"

  1134.     header=$1

  1135.     shift

  1136.     disable_sanitized $header

  1137.     {

  1138.        echo "#include <$header>"

  1139.        echo "int main(void) { return 0; }"

  1140.     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header

  1141. }

  1142. 

  1143. check_apple_framework(){

  1144.     log check_apple_framework "$@"

  1145.     framework="$1"

  1146.     name="$(tolower $framework)"

  1147.     header="${framework}/${framework}.h"

  1148.     disable $name

  1149.     check_header_objcc $header &&

  1150.         enable $name && eval ${name}_extralibs='"-framework $framework"'

  1151. }

  1152. 

  1153. check_func(){

  1154.     log check_func "$@"

  1155.     func=$1

  1156.     shift

  1157.     disable $func

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

  1159. extern int $func();

  1160. int main(void){ $func(); }

  1161. EOF

  1162. }

  1163. 

  1164. check_complexfunc(){

  1165.     log check_complexfunc "$@"

  1166.     func=$1

  1167.     narg=$2

  1168.     shift 2

  1169.     test $narg = 2 && args="f, g" || args="f * I"

  1170.     disable $func

  1171.     check_ld "cc" "$@" <<EOF && enable $func

  1172. #include <complex.h>

  1173. #include <math.h>

  1174. float foo(complex float f, complex float g) { return $func($args); }

  1175. int main(void){ return (int) foo; }

  1176. EOF

  1177. }

  1178. 

  1179. check_mathfunc(){

  1180.     log check_mathfunc "$@"

  1181.     func=$1

  1182.     narg=$2

  1183.     shift 2

  1184.     test $narg = 2 && args="f, g" || args="f"

  1185.     disable $func

  1186.     check_ld "cc" "$@" <<EOF && enable $func

  1187. #include <math.h>

  1188. float foo(float f, float g) { return $func($args); }

  1189. int main(void){ return (int) foo; }

  1190. EOF

  1191. }

  1192. 

  1193. check_func_headers(){

  1194.     log check_func_headers "$@"

  1195.     headers=$1

  1196.     funcs=$2

  1197.     shift 2

  1198.     {

  1199.         for hdr in $headers; do

  1200.             print_include $hdr

  1201.         done

  1202.         echo "#include <stdint.h>"

  1203.         for func in $funcs; do

  1204.             echo "long check_$func(void) { return (long) $func; }"

  1205.         done

  1206.         echo "int main(void) { int ret = 0;"

  1207.         # LTO could optimize out the test functions without this

  1208.         for func in $funcs; do

  1209.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1210.         done

  1211.         echo "return ret; }"

  1212.     } | check_ld "cc" "$@" && enable $funcs && enable_sanitized $headers

  1213. }

  1214. 

  1215. check_class_headers_cpp(){

  1216.     log check_class_headers_cpp "$@"

  1217.     headers=$1

  1218.     classes=$2

  1219.     shift 2

  1220.     {

  1221.         for hdr in $headers; do

  1222.             echo "#include <$hdr>"

  1223.         done

  1224.         echo "int main(void) { "

  1225.         i=1

  1226.         for class in $classes; do

  1227.             echo "$class obj$i;"

  1228.             i=$(expr $i + 1)

  1229.         done

  1230.         echo "return 0; }"

  1231.     } | check_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers

  1232. }

  1233. 

  1234. check_cpp_condition(){

  1235.     log check_cpp_condition "$@"

  1236.     header=$1

  1237.     condition=$2

  1238.     shift 2

  1239.     check_cpp "$@" <<EOF

  1240. #include <$header>

  1241. #if !($condition)

  1242. #error "unsatisfied condition: $condition"

  1243. #endif

  1244. EOF

  1245. }

  1246. 

  1247. test_cflags_cc(){

  1248.     log test_cflags_cc "$@"

  1249.     flags=$1

  1250.     header=$2

  1251.     condition=$3

  1252.     shift 3

  1253.     set -- $($cflags_filter "$flags")

  1254.     check_cc "$@" <<EOF

  1255. #include <$header>

  1256. #if !($condition)

  1257. #error "unsatisfied condition: $condition"

  1258. #endif

  1259. EOF

  1260. }

  1261. 

  1262. check_lib(){

  1263.     log check_lib "$@"

  1264.     name="$1"

  1265.     headers="$2"

  1266.     funcs="$3"

  1267.     shift 3

  1268.     disable $name

  1269.     check_func_headers "$headers" "$funcs" "$@" &&

  1270.         enable $name && eval ${name}_extralibs="\$@"

  1271. }

  1272. 

  1273. check_lib_cpp(){

  1274.     log check_lib_cpp "$@"

  1275.     name="$1"

  1276.     headers="$2"

  1277.     classes="$3"

  1278.     shift 3

  1279.     disable $name

  1280.     check_class_headers_cpp "$headers" "$classes" "$@" &&

  1281.         enable $name && eval ${name}_extralibs="\$@"

  1282. }

  1283. 

  1284. test_pkg_config(){

  1285.     log test_pkg_config "$@"

  1286.     name="$1"

  1287.     pkg_version="$2"

  1288.     pkg="${2%% *}"

  1289.     headers="$3"

  1290.     funcs="$4"

  1291.     shift 4

  1292.     disable $name

  1293.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1294.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1295.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1296.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1297.         enable $name &&

  1298.         set_sanitized "${name}_cflags"    $pkg_cflags &&

  1299.         set_sanitized "${name}_extralibs" $pkg_libs

  1300. }

  1301. 

  1302. check_pkg_config(){

  1303.     log check_pkg_config "$@"

  1304.     name="$1"

  1305.     test_pkg_config "$@" &&

  1306.         eval add_cflags \$${name}_cflags

  1307. }

  1308. 

  1309. check_exec(){

  1310.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1311. }

  1312. 

  1313. check_exec_crash(){

  1314.     log check_exec_crash "$@"

  1315.     code=$(cat)

  1316. 

  1317.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1318.     # are safe but may not be available everywhere.  Thus we use

  1319.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1320.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1321.     # is not defined by standard C so it is used conditionally.

  1322. 

  1323.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1324. #include <signal.h>

  1325. static void sighandler(int sig){

  1326.     raise(SIGTERM);

  1327. }

  1328. int foo(void){

  1329.     $code

  1330. }

  1331. int (*func_ptr)(void) = foo;

  1332. int main(void){

  1333.     signal(SIGILL, sighandler);

  1334.     signal(SIGFPE, sighandler);

  1335.     signal(SIGSEGV, sighandler);

  1336. #ifdef SIGBUS

  1337.     signal(SIGBUS, sighandler);

  1338. #endif

  1339.     return func_ptr();

  1340. }

  1341. EOF

  1342. }

  1343. 

  1344. check_type(){

  1345.     log check_type "$@"

  1346.     headers=$1

  1347.     type=$2

  1348.     shift 2

  1349.     disable_sanitized "$type"

  1350.     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"

  1351. }

  1352. 

  1353. check_struct(){

  1354.     log check_struct "$@"

  1355.     headers=$1

  1356.     struct=$2

  1357.     member=$3

  1358.     shift 3

  1359.     disable_sanitized "${struct}_${member}"

  1360.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1361.         enable_sanitized "${struct}_${member}"

  1362. }

  1363. 

  1364. check_builtin(){

  1365.     log check_builtin "$@"

  1366.     name=$1

  1367.     headers=$2

  1368.     builtin=$3

  1369.     shift 3

  1370.     disable "$name"

  1371.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1372. }

  1373. 

  1374. check_compile_assert(){

  1375.     log check_compile_assert "$@"

  1376.     name=$1

  1377.     headers=$2

  1378.     condition=$3

  1379.     shift 3

  1380.     disable "$name"

  1381.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1382. }

  1383. 

  1384. require(){

  1385.     log require "$@"

  1386.     name_version="$1"

  1387.     name="${1%% *}"

  1388.     headers="$2"

  1389.     func="$3"

  1390.     shift 3

  1391.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1392. }

  1393. 

  1394. require_cpp(){

  1395.     name="$1"

  1396.     headers="$2"

  1397.     classes="$3"

  1398.     shift 3

  1399.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1400. }

  1401. 

  1402. require_header(){

  1403.     log require_header "$@"

  1404.     headers="$1"

  1405.     shift

  1406.     check_header "$headers" "$@" || die "ERROR: $headers not found"

  1407. }

  1408. 

  1409. require_cpp_condition(){

  1410.     log require_cpp_condition "$@"

  1411.     header="$1"

  1412.     condition="$2"

  1413.     shift 2

  1414.     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"

  1415. }

  1416. 

  1417. require_pkg_config(){

  1418.     log require_pkg_config "$@"

  1419.     pkg_version="$2"

  1420.     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"

  1421. }

  1422. 

  1423. hostcc_e(){

  1424.     eval printf '%s\\n' $HOSTCC_E

  1425. }

  1426. 

  1427. hostcc_o(){

  1428.     eval printf '%s\\n' $HOSTCC_O

  1429. }

  1430. 

  1431. check_host_cc(){

  1432.     log check_host_cc "$@"

  1433.     cat > $TMPC

  1434.     log_file $TMPC

  1435.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1436. }

  1437. 

  1438. check_host_cpp(){

  1439.     log check_host_cpp "$@"

  1440.     cat > $TMPC

  1441.     log_file $TMPC

  1442.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1443. }

  1444. 

  1445. check_host_cppflags(){

  1446.     log check_host_cppflags "$@"

  1447.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1448. #include <stdlib.h>

  1449. EOF

  1450. }

  1451. 

  1452. check_host_cflags(){

  1453.     log check_host_cflags "$@"

  1454.     set -- $($host_cflags_filter "$@")

  1455.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1456. int x;

  1457. EOF

  1458. }

  1459. 

  1460. check_host_cpp_condition(){

  1461.     log check_host_cpp_condition "$@"

  1462.     header=$1

  1463.     condition=$2

  1464.     shift 2

  1465.     check_host_cpp "$@" <<EOF

  1466. #include <$header>

  1467. #if !($condition)

  1468. #error "unsatisfied condition: $condition"

  1469. #endif

  1470. EOF

  1471. }

  1472. 

  1473. cp_if_changed(){

  1474.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1475.     mkdir -p "$(dirname $2)"

  1476.     cp -f "$1" "$2"

  1477. }

  1478. 

  1479. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1480. # system-dependent things.

  1481. 

  1482. AVCODEC_COMPONENTS="

  1483.     bsfs

  1484.     decoders

  1485.     encoders

  1486.     hwaccels

  1487.     parsers

  1488. "

  1489. 

  1490. AVDEVICE_COMPONENTS="

  1491.     indevs

  1492.     outdevs

  1493. "

  1494. 

  1495. AVFILTER_COMPONENTS="

  1496.     filters

  1497. "

  1498. 

  1499. AVFORMAT_COMPONENTS="

  1500.     demuxers

  1501.     muxers

  1502.     protocols

  1503. "

  1504. 

  1505. COMPONENT_LIST="

  1506.     $AVCODEC_COMPONENTS

  1507.     $AVDEVICE_COMPONENTS

  1508.     $AVFILTER_COMPONENTS

  1509.     $AVFORMAT_COMPONENTS

  1510. "

  1511. 

  1512. EXAMPLE_LIST="

  1513.     avio_dir_cmd_example

  1514.     avio_reading_example

  1515.     decode_audio_example

  1516.     decode_video_example

  1517.     demuxing_decoding_example

  1518.     encode_audio_example

  1519.     encode_video_example

  1520.     extract_mvs_example

  1521.     filter_audio_example

  1522.     filtering_audio_example

  1523.     filtering_video_example

  1524.     http_multiclient_example

  1525.     hw_decode_example

  1526.     metadata_example

  1527.     muxing_example

  1528.     qsvdec_example

  1529.     remuxing_example

  1530.     resampling_audio_example

  1531.     scaling_video_example

  1532.     transcode_aac_example

  1533.     transcoding_example

  1534.     vaapi_encode_example

  1535.     vaapi_transcode_example

  1536. "

  1537. 

  1538. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1539.     alsa

  1540.     appkit

  1541.     avfoundation

  1542.     bzlib

  1543.     coreimage

  1544.     iconv

  1545.     libxcb

  1546.     libxcb_shm

  1547.     libxcb_shape

  1548.     libxcb_xfixes

  1549.     lzma

  1550.     schannel

  1551.     sdl2

  1552.     securetransport

  1553.     sndio

  1554.     xlib

  1555.     zlib

  1556. "

  1557. 

  1558. EXTERNAL_LIBRARY_GPL_LIST="

  1559.     avisynth

  1560.     frei0r

  1561.     libcdio

  1562.     librubberband

  1563.     libvidstab

  1564.     libx264

  1565.     libx265

  1566.     libxavs

  1567.     libxvid

  1568. "

  1569. 

  1570. EXTERNAL_LIBRARY_NONFREE_LIST="

  1571.     decklink

  1572.     libndi_newtek

  1573.     libfdk_aac

  1574.     openssl

  1575.     libtls

  1576. "

  1577. 

  1578. EXTERNAL_LIBRARY_VERSION3_LIST="

  1579.     gmp

  1580.     libopencore_amrnb

  1581.     libopencore_amrwb

  1582.     libvmaf

  1583.     libvo_amrwbenc

  1584.     rkmpp

  1585. "

  1586. 

  1587. EXTERNAL_LIBRARY_GPLV3_LIST="

  1588.     libsmbclient

  1589. "

  1590. 

  1591. EXTERNAL_LIBRARY_LIST="

  1592.     $EXTERNAL_LIBRARY_GPL_LIST

  1593.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1594.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1595.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1596.     chromaprint

  1597.     gcrypt

  1598.     gnutls

  1599.     jni

  1600.     ladspa

  1601.     libass

  1602.     libbluray

  1603.     libbs2b

  1604.     libcaca

  1605.     libcelt

  1606.     libdc1394

  1607.     libdrm

  1608.     libflite

  1609.     libfontconfig

  1610.     libfreetype

  1611.     libfribidi

  1612.     libgme

  1613.     libgsm

  1614.     libiec61883

  1615.     libilbc

  1616.     libjack

  1617.     libkvazaar

  1618.     libmodplug

  1619.     libmp3lame

  1620.     libmysofa

  1621.     libopencv

  1622.     libopenh264

  1623.     libopenjpeg

  1624.     libopenmpt

  1625.     libopus

  1626.     libpulse

  1627.     librsvg

  1628.     librtmp

  1629.     libshine

  1630.     libsmbclient

  1631.     libsnappy

  1632.     libsoxr

  1633.     libspeex

  1634.     libssh

  1635.     libtesseract

  1636.     libtheora

  1637.     libtwolame

  1638.     libv4l2

  1639.     libvorbis

  1640.     libvpx

  1641.     libwavpack

  1642.     libwebp

  1643.     libxml2

  1644.     libzimg

  1645.     libzmq

  1646.     libzvbi

  1647.     lv2

  1648.     mediacodec

  1649.     openal

  1650.     opengl

  1651. "

  1652. 

  1653. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1654.     amf

  1655.     audiotoolbox

  1656.     crystalhd

  1657.     cuda

  1658.     cuvid

  1659.     d3d11va

  1660.     dxva2

  1661.     nvdec

  1662.     nvenc

  1663.     vaapi

  1664.     vdpau

  1665.     videotoolbox

  1666.     v4l2_m2m

  1667.     xvmc

  1668. "

  1669. 

  1670. # catchall list of things that require external libs to link

  1671. EXTRALIBS_LIST="

  1672.     cpu_init

  1673.     cws2fws

  1674. "

  1675. 

  1676. HWACCEL_LIBRARY_NONFREE_LIST="

  1677.     cuda_sdk

  1678.     libnpp

  1679. "

  1680. 

  1681. HWACCEL_LIBRARY_LIST="

  1682.     $HWACCEL_LIBRARY_NONFREE_LIST

  1683.     libmfx

  1684.     mmal

  1685.     omx

  1686.     opencl

  1687. "

  1688. 

  1689. DOCUMENT_LIST="

  1690.     doc

  1691.     htmlpages

  1692.     manpages

  1693.     podpages

  1694.     txtpages

  1695. "

  1696. 

  1697. FEATURE_LIST="

  1698.     ftrapv

  1699.     gray

  1700.     hardcoded_tables

  1701.     omx_rpi

  1702.     runtime_cpudetect

  1703.     safe_bitstream_reader

  1704.     shared

  1705.     small

  1706.     static

  1707.     swscale_alpha

  1708. "

  1709. 

  1710. LIBRARY_LIST="

  1711.     avcodec

  1712.     avdevice

  1713.     avfilter

  1714.     avformat

  1715.     avresample

  1716.     avutil

  1717.     postproc

  1718.     swresample

  1719.     swscale

  1720. "

  1721. 

  1722. LICENSE_LIST="

  1723.     gpl

  1724.     nonfree

  1725.     version3

  1726. "

  1727. 

  1728. PROGRAM_LIST="

  1729.     ffplay

  1730.     ffprobe

  1731.     ffmpeg

  1732. "

  1733. 

  1734. SUBSYSTEM_LIST="

  1735.     dct

  1736.     dwt

  1737.     error_resilience

  1738.     faan

  1739.     fast_unaligned

  1740.     fft

  1741.     lsp

  1742.     lzo

  1743.     mdct

  1744.     pixelutils

  1745.     network

  1746.     rdft

  1747. "

  1748. 

  1749. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1750. CONFIG_LIST="

  1751.     $DOCUMENT_LIST

  1752.     $EXAMPLE_LIST

  1753.     $EXTERNAL_LIBRARY_LIST

  1754.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1755.     $HWACCEL_LIBRARY_LIST

  1756.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1757.     $FEATURE_LIST

  1758.     $LICENSE_LIST

  1759.     $LIBRARY_LIST

  1760.     $PROGRAM_LIST

  1761.     $SUBSYSTEM_LIST

  1762.     autodetect

  1763.     fontconfig

  1764.     linux_perf

  1765.     memory_poisoning

  1766.     neon_clobber_test

  1767.     ossfuzz

  1768.     pic

  1769.     thumb

  1770.     valgrind_backtrace

  1771.     xmm_clobber_test

  1772.     $COMPONENT_LIST

  1773. "

  1774. 

  1775. THREADS_LIST="

  1776.     pthreads

  1777.     os2threads

  1778.     w32threads

  1779. "

  1780. 

  1781. ATOMICS_LIST="

  1782.     atomics_gcc

  1783.     atomics_suncc

  1784.     atomics_win32

  1785. "

  1786. 

  1787. AUTODETECT_LIBS="

  1788.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1789.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1790.     $THREADS_LIST

  1791. "

  1792. 

  1793. ARCH_LIST="

  1794.     aarch64

  1795.     alpha

  1796.     arm

  1797.     avr32

  1798.     avr32_ap

  1799.     avr32_uc

  1800.     bfin

  1801.     ia64

  1802.     m68k

  1803.     mips

  1804.     mips64

  1805.     parisc

  1806.     ppc

  1807.     ppc64

  1808.     s390

  1809.     sh4

  1810.     sparc

  1811.     sparc64

  1812.     tilegx

  1813.     tilepro

  1814.     tomi

  1815.     x86

  1816.     x86_32

  1817.     x86_64

  1818. "

  1819. 

  1820. ARCH_EXT_LIST_ARM="

  1821.     armv5te

  1822.     armv6

  1823.     armv6t2

  1824.     armv8

  1825.     neon

  1826.     vfp

  1827.     vfpv3

  1828.     setend

  1829. "

  1830. 

  1831. ARCH_EXT_LIST_MIPS="

  1832.     mipsfpu

  1833.     mips32r2

  1834.     mips32r5

  1835.     mips64r2

  1836.     mips32r6

  1837.     mips64r6

  1838.     mipsdsp

  1839.     mipsdspr2

  1840.     msa

  1841. "

  1842. 

  1843. ARCH_EXT_LIST_LOONGSON="

  1844.     loongson2

  1845.     loongson3

  1846.     mmi

  1847. "

  1848. 

  1849. ARCH_EXT_LIST_X86_SIMD="

  1850.     aesni

  1851.     amd3dnow

  1852.     amd3dnowext

  1853.     avx

  1854.     avx2

  1855.     avx512

  1856.     fma3

  1857.     fma4

  1858.     mmx

  1859.     mmxext

  1860.     sse

  1861.     sse2

  1862.     sse3

  1863.     sse4

  1864.     sse42

  1865.     ssse3

  1866.     xop

  1867. "

  1868. 

  1869. ARCH_EXT_LIST_PPC="

  1870.     altivec

  1871.     dcbzl

  1872.     ldbrx

  1873.     power8

  1874.     ppc4xx

  1875.     vsx

  1876. "

  1877. 

  1878. ARCH_EXT_LIST_X86="

  1879.     $ARCH_EXT_LIST_X86_SIMD

  1880.     cpunop

  1881.     i686

  1882. "

  1883. 

  1884. ARCH_EXT_LIST="

  1885.     $ARCH_EXT_LIST_ARM

  1886.     $ARCH_EXT_LIST_PPC

  1887.     $ARCH_EXT_LIST_X86

  1888.     $ARCH_EXT_LIST_MIPS

  1889.     $ARCH_EXT_LIST_LOONGSON

  1890. "

  1891. 

  1892. ARCH_FEATURES="

  1893.     aligned_stack

  1894.     fast_64bit

  1895.     fast_clz

  1896.     fast_cmov

  1897.     local_aligned

  1898.     simd_align_16

  1899.     simd_align_32

  1900.     simd_align_64

  1901. "

  1902. 

  1903. BUILTIN_LIST="

  1904.     atomic_cas_ptr

  1905.     machine_rw_barrier

  1906.     MemoryBarrier

  1907.     mm_empty

  1908.     rdtsc

  1909.     sem_timedwait

  1910.     sync_val_compare_and_swap

  1911. "

  1912. HAVE_LIST_CMDLINE="

  1913.     inline_asm

  1914.     symver

  1915.     x86asm

  1916. "

  1917. 

  1918. HAVE_LIST_PUB="

  1919.     bigendian

  1920.     fast_unaligned

  1921. "

  1922. 

  1923. HEADERS_LIST="

  1924.     arpa_inet_h

  1925.     asm_types_h

  1926.     cdio_paranoia_h

  1927.     cdio_paranoia_paranoia_h

  1928.     cuda_h

  1929.     dispatch_dispatch_h

  1930.     dev_bktr_ioctl_bt848_h

  1931.     dev_bktr_ioctl_meteor_h

  1932.     dev_ic_bt8xx_h

  1933.     dev_video_bktr_ioctl_bt848_h

  1934.     dev_video_meteor_ioctl_meteor_h

  1935.     direct_h

  1936.     dirent_h

  1937.     dxgidebug_h

  1938.     dxva_h

  1939.     ES2_gl_h

  1940.     gsm_h

  1941.     io_h

  1942.     machine_ioctl_bt848_h

  1943.     machine_ioctl_meteor_h

  1944.     malloc_h

  1945.     opencv2_core_core_c_h

  1946.     OpenGL_gl3_h

  1947.     poll_h

  1948.     sys_param_h

  1949.     sys_resource_h

  1950.     sys_select_h

  1951.     sys_soundcard_h

  1952.     sys_time_h

  1953.     sys_un_h

  1954.     sys_videoio_h

  1955.     termios_h

  1956.     udplite_h

  1957.     unistd_h

  1958.     valgrind_valgrind_h

  1959.     windows_h

  1960.     winsock2_h

  1961. "

  1962. 

  1963. INTRINSICS_LIST="

  1964.     intrinsics_neon

  1965. "

  1966. 

  1967. COMPLEX_FUNCS="

  1968.     cabs

  1969.     cexp

  1970. "

  1971. 

  1972. MATH_FUNCS="

  1973.     atanf

  1974.     atan2f

  1975.     cbrt

  1976.     cbrtf

  1977.     copysign

  1978.     cosf

  1979.     erf

  1980.     exp2

  1981.     exp2f

  1982.     expf

  1983.     hypot

  1984.     isfinite

  1985.     isinf

  1986.     isnan

  1987.     ldexpf

  1988.     llrint

  1989.     llrintf

  1990.     log2

  1991.     log2f

  1992.     log10f

  1993.     lrint

  1994.     lrintf

  1995.     powf

  1996.     rint

  1997.     round

  1998.     roundf

  1999.     sinf

  2000.     trunc

  2001.     truncf

  2002. "

  2003. 

  2004. SYSTEM_FEATURES="

  2005.     dos_paths

  2006.     libc_msvcrt

  2007.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2008.     section_data_rel_ro

  2009.     threads

  2010.     uwp

  2011.     winrt

  2012. "

  2013. 

  2014. SYSTEM_FUNCS="

  2015.     access

  2016.     aligned_malloc

  2017.     arc4random

  2018.     clock_gettime

  2019.     closesocket

  2020.     CommandLineToArgvW

  2021.     fcntl

  2022.     getaddrinfo

  2023.     gethrtime

  2024.     getopt

  2025.     GetProcessAffinityMask

  2026.     GetProcessMemoryInfo

  2027.     GetProcessTimes

  2028.     getrusage

  2029.     GetSystemTimeAsFileTime

  2030.     gettimeofday

  2031.     glob

  2032.     glXGetProcAddress

  2033.     gmtime_r

  2034.     inet_aton

  2035.     isatty

  2036.     kbhit

  2037.     localtime_r

  2038.     lstat

  2039.     lzo1x_999_compress

  2040.     mach_absolute_time

  2041.     MapViewOfFile

  2042.     memalign

  2043.     mkstemp

  2044.     mmap

  2045.     mprotect

  2046.     nanosleep

  2047.     PeekNamedPipe

  2048.     posix_memalign

  2049.     pthread_cancel

  2050.     sched_getaffinity

  2051.     SecItemImport

  2052.     SetConsoleTextAttribute

  2053.     SetConsoleCtrlHandler

  2054.     setmode

  2055.     setrlimit

  2056.     Sleep

  2057.     strerror_r

  2058.     sysconf

  2059.     sysctl

  2060.     usleep

  2061.     UTGetOSTypeFromString

  2062.     VirtualAlloc

  2063.     wglGetProcAddress

  2064. "

  2065. 

  2066. SYSTEM_LIBRARIES="

  2067.     vaapi_drm

  2068.     vaapi_x11

  2069.     vdpau_x11

  2070.     wincrypt

  2071. "

  2072. 

  2073. TOOLCHAIN_FEATURES="

  2074.     as_arch_directive

  2075.     as_fpu_directive

  2076.     as_func

  2077.     as_object_arch

  2078.     asm_mod_q

  2079.     blocks_extension

  2080.     ebp_available

  2081.     ebx_available

  2082.     gnu_as

  2083.     gnu_windres

  2084.     ibm_asm

  2085.     inline_asm_direct_symbol_refs

  2086.     inline_asm_labels

  2087.     inline_asm_nonlocal_labels

  2088.     pragma_deprecated

  2089.     rsync_contimeout

  2090.     symver_asm_label

  2091.     symver_gnu_asm

  2092.     vfp_args

  2093.     xform_asm

  2094.     xmm_clobbers

  2095. "

  2096. 

  2097. TYPES_LIST="

  2098.     kCMVideoCodecType_HEVC

  2099.     socklen_t

  2100.     struct_addrinfo

  2101.     struct_group_source_req

  2102.     struct_ip_mreq_source

  2103.     struct_ipv6_mreq

  2104.     struct_msghdr_msg_flags

  2105.     struct_pollfd

  2106.     struct_rusage_ru_maxrss

  2107.     struct_sctp_event_subscribe

  2108.     struct_sockaddr_in6

  2109.     struct_sockaddr_sa_len

  2110.     struct_sockaddr_storage

  2111.     struct_stat_st_mtim_tv_nsec

  2112.     struct_v4l2_frmivalenum_discrete

  2113. "

  2114. 

  2115. HAVE_LIST="

  2116.     $ARCH_EXT_LIST

  2117.     $(add_suffix _external $ARCH_EXT_LIST)

  2118.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2119.     $ARCH_FEATURES

  2120.     $BUILTIN_LIST

  2121.     $COMPLEX_FUNCS

  2122.     $HAVE_LIST_CMDLINE

  2123.     $HAVE_LIST_PUB

  2124.     $HEADERS_LIST

  2125.     $INTRINSICS_LIST

  2126.     $MATH_FUNCS

  2127.     $SYSTEM_FEATURES

  2128.     $SYSTEM_FUNCS

  2129.     $SYSTEM_LIBRARIES

  2130.     $THREADS_LIST

  2131.     $TOOLCHAIN_FEATURES

  2132.     $TYPES_LIST

  2133.     makeinfo

  2134.     makeinfo_html

  2135.     opencl_d3d11

  2136.     opencl_drm_arm

  2137.     opencl_dxva2

  2138.     opencl_vaapi_beignet

  2139.     opencl_vaapi_intel_media

  2140.     perl

  2141.     pod2man

  2142.     texi2html

  2143. "

  2144. 

  2145. # options emitted with CONFIG_ prefix but not available on the command line

  2146. CONFIG_EXTRA="

  2147.     aandcttables

  2148.     ac3dsp

  2149.     adts_header

  2150.     audio_frame_queue

  2151.     audiodsp

  2152.     blockdsp

  2153.     bswapdsp

  2154.     cabac

  2155.     cbs

  2156.     cbs_h264

  2157.     cbs_h265

  2158.     cbs_mpeg2

  2159.     dirac_parse

  2160.     dvprofile

  2161.     exif

  2162.     faandct

  2163.     faanidct

  2164.     fdctdsp

  2165.     flacdsp

  2166.     fmtconvert

  2167.     frame_thread_encoder

  2168.     g722dsp

  2169.     golomb

  2170.     gplv3

  2171.     h263dsp

  2172.     h264chroma

  2173.     h264dsp

  2174.     h264parse

  2175.     h264pred

  2176.     h264qpel

  2177.     hevcparse

  2178.     hpeldsp

  2179.     huffman

  2180.     huffyuvdsp

  2181.     huffyuvencdsp

  2182.     idctdsp

  2183.     iirfilter

  2184.     mdct15

  2185.     intrax8

  2186.     iso_media

  2187.     ividsp

  2188.     jpegtables

  2189.     lgplv3

  2190.     libx262

  2191.     llauddsp

  2192.     llviddsp

  2193.     llvidencdsp

  2194.     lpc

  2195.     lzf

  2196.     me_cmp

  2197.     mpeg_er

  2198.     mpegaudio

  2199.     mpegaudiodsp

  2200.     mpegaudioheader

  2201.     mpegvideo

  2202.     mpegvideoenc

  2203.     mss34dsp

  2204.     pixblockdsp

  2205.     qpeldsp

  2206.     qsv

  2207.     qsvdec

  2208.     qsvenc

  2209.     qsvvpp

  2210.     rangecoder

  2211.     riffdec

  2212.     riffenc

  2213.     rtpdec

  2214.     rtpenc_chain

  2215.     rv34dsp

  2216.     sinewin

  2217.     snappy

  2218.     srtp

  2219.     startcode

  2220.     texturedsp

  2221.     texturedspenc

  2222.     tpeldsp

  2223.     vaapi_1

  2224.     vaapi_encode

  2225.     vc1dsp

  2226.     videodsp

  2227.     vp3dsp

  2228.     vp56dsp

  2229.     vp8dsp

  2230.     wma_freqs

  2231.     wmv2dsp

  2232. "

  2233. 

  2234. CMDLINE_SELECT="

  2235.     $ARCH_EXT_LIST

  2236.     $CONFIG_LIST

  2237.     $HAVE_LIST_CMDLINE

  2238.     $THREADS_LIST

  2239.     asm

  2240.     cross_compile

  2241.     debug

  2242.     extra_warnings

  2243.     logging

  2244.     lto

  2245.     optimizations

  2246.     rpath

  2247.     stripping

  2248. "

  2249. 

  2250. PATHS_LIST="

  2251.     bindir

  2252.     datadir

  2253.     docdir

  2254.     incdir

  2255.     libdir

  2256.     mandir

  2257.     pkgconfigdir

  2258.     prefix

  2259.     shlibdir

  2260.     install_name_dir

  2261. "

  2262. 

  2263. CMDLINE_SET="

  2264.     $PATHS_LIST

  2265.     ar

  2266.     arch

  2267.     as

  2268.     assert_level

  2269.     build_suffix

  2270.     cc

  2271.     objcc

  2272.     cpu

  2273.     cross_prefix

  2274.     custom_allocator

  2275.     cxx

  2276.     dep_cc

  2277.     doxygen

  2278.     env

  2279.     extra_version

  2280.     gas

  2281.     host_cc

  2282.     host_cflags

  2283.     host_extralibs

  2284.     host_ld

  2285.     host_ldflags

  2286.     host_os

  2287.     ignore_tests

  2288.     install

  2289.     ld

  2290.     ln_s

  2291.     logfile

  2292.     malloc_prefix

  2293.     nm

  2294.     optflags

  2295.     nvccflags

  2296.     pkg_config

  2297.     pkg_config_flags

  2298.     progs_suffix

  2299.     random_seed

  2300.     ranlib

  2301.     samples

  2302.     strip

  2303.     sws_max_filter_size

  2304.     sysinclude

  2305.     sysroot

  2306.     target_exec

  2307.     target_os

  2308.     target_path

  2309.     target_samples

  2310.     tempprefix

  2311.     toolchain

  2312.     valgrind

  2313.     x86asmexe

  2314. "

  2315. 

  2316. CMDLINE_APPEND="

  2317.     extra_cflags

  2318.     extra_cxxflags

  2319.     extra_objcflags

  2320.     host_cppflags

  2321. "

  2322. 

  2323. # code dependency declarations

  2324. 

  2325. # architecture extensions

  2326. 

  2327. armv5te_deps="arm"

  2328. armv6_deps="arm"

  2329. armv6t2_deps="arm"

  2330. armv8_deps="aarch64"

  2331. neon_deps_any="aarch64 arm"

  2332. intrinsics_neon_deps="neon"

  2333. vfp_deps_any="aarch64 arm"

  2334. vfpv3_deps="vfp"

  2335. setend_deps="arm"

  2336. 

  2337. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2338. 

  2339. altivec_deps="ppc"

  2340. dcbzl_deps="ppc"

  2341. ldbrx_deps="ppc"

  2342. ppc4xx_deps="ppc"

  2343. vsx_deps="altivec"

  2344. power8_deps="vsx"

  2345. 

  2346. loongson2_deps="mips"

  2347. loongson3_deps="mips"

  2348. mips32r2_deps="mips"

  2349. mips32r5_deps="mips"

  2350. mips32r6_deps="mips"

  2351. mips64r2_deps="mips"

  2352. mips64r6_deps="mips"

  2353. mipsfpu_deps="mips"

  2354. mipsdsp_deps="mips"

  2355. mipsdspr2_deps="mips"

  2356. mmi_deps="mips"

  2357. msa_deps="mipsfpu"

  2358. 

  2359. cpunop_deps="i686"

  2360. x86_64_select="i686"

  2361. x86_64_suggest="fast_cmov"

  2362. 

  2363. amd3dnow_deps="mmx"

  2364. amd3dnowext_deps="amd3dnow"

  2365. i686_deps="x86"

  2366. mmx_deps="x86"

  2367. mmxext_deps="mmx"

  2368. sse_deps="mmxext"

  2369. sse2_deps="sse"

  2370. sse3_deps="sse2"

  2371. ssse3_deps="sse3"

  2372. sse4_deps="ssse3"

  2373. sse42_deps="sse4"

  2374. aesni_deps="sse42"

  2375. avx_deps="sse42"

  2376. xop_deps="avx"

  2377. fma3_deps="avx"

  2378. fma4_deps="avx"

  2379. avx2_deps="avx"

  2380. avx512_deps="avx2"

  2381. 

  2382. mmx_external_deps="x86asm"

  2383. mmx_inline_deps="inline_asm x86"

  2384. mmx_suggest="mmx_external mmx_inline"

  2385. 

  2386. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2387.     eval dep=\$${ext}_deps

  2388.     eval ${ext}_external_deps='"${dep}_external"'

  2389.     eval ${ext}_inline_deps='"${dep}_inline"'

  2390.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2391. done

  2392. 

  2393. aligned_stack_if_any="aarch64 ppc x86"

  2394. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2395. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2396. fast_unaligned_if_any="aarch64 ppc x86"

  2397. simd_align_16_if_any="altivec neon sse"

  2398. simd_align_32_if_any="avx"

  2399. simd_align_64_if_any="avx512"

  2400. 

  2401. # system capabilities

  2402. symver_if_any="symver_asm_label symver_gnu_asm"

  2403. valgrind_backtrace_conflict="optimizations"

  2404. valgrind_backtrace_deps="valgrind_valgrind_h"

  2405. 

  2406. # threading support

  2407. atomics_gcc_if="sync_val_compare_and_swap"

  2408. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2409. atomics_win32_if="MemoryBarrier"

  2410. atomics_native_if_any="$ATOMICS_LIST"

  2411. w32threads_deps="atomics_native"

  2412. threads_if_any="$THREADS_LIST"

  2413. 

  2414. # subsystems

  2415. cbs_h264_select="cbs golomb"

  2416. cbs_h265_select="cbs golomb"

  2417. cbs_mpeg2_select="cbs"

  2418. dct_select="rdft"

  2419. dirac_parse_select="golomb"

  2420. error_resilience_select="me_cmp"

  2421. faandct_deps="faan"

  2422. faandct_select="fdctdsp"

  2423. faanidct_deps="faan"

  2424. faanidct_select="idctdsp"

  2425. h264dsp_select="startcode"

  2426. hevcparse_select="golomb"

  2427. frame_thread_encoder_deps="encoders threads"

  2428. intrax8_select="blockdsp idctdsp"

  2429. mdct_select="fft"

  2430. mdct15_select="fft"

  2431. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2432. mpeg_er_select="error_resilience"

  2433. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2434. mpegaudiodsp_select="dct"

  2435. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2436. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2437. vc1dsp_select="h264chroma qpeldsp startcode"

  2438. rdft_select="fft"

  2439. 

  2440. # decoders / encoders

  2441. aac_decoder_select="adts_header mdct15 mdct sinewin"

  2442. aac_fixed_decoder_select="mdct sinewin"

  2443. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2444. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2445. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2446. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2447. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2448. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2449. adpcm_g722_decoder_select="g722dsp"

  2450. adpcm_g722_encoder_select="g722dsp"

  2451. aic_decoder_select="golomb idctdsp"

  2452. alac_encoder_select="lpc"

  2453. als_decoder_select="bswapdsp"

  2454. amrnb_decoder_select="lsp"

  2455. amrwb_decoder_select="lsp"

  2456. amv_decoder_select="sp5x_decoder exif"

  2457. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2458. ape_decoder_select="bswapdsp llauddsp"

  2459. apng_decoder_deps="zlib"

  2460. apng_encoder_deps="zlib"

  2461. apng_encoder_select="llvidencdsp"

  2462. aptx_decoder_select="audio_frame_queue"

  2463. aptx_encoder_select="audio_frame_queue"

  2464. aptx_hd_decoder_select="audio_frame_queue"

  2465. aptx_hd_encoder_select="audio_frame_queue"

  2466. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2467. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2468. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2469. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2470. atrac1_decoder_select="mdct sinewin"

  2471. atrac3_decoder_select="mdct"

  2472. atrac3p_decoder_select="mdct sinewin"

  2473. avrn_decoder_select="exif jpegtables"

  2474. bink_decoder_select="blockdsp hpeldsp"

  2475. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2476. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2477. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2478. clearvideo_decoder_select="idctdsp"

  2479. cllc_decoder_select="bswapdsp"

  2480. comfortnoise_encoder_select="lpc"

  2481. cook_decoder_select="audiodsp mdct sinewin"

  2482. cscd_decoder_select="lzo"

  2483. cscd_decoder_suggest="zlib"

  2484. dca_decoder_select="mdct"

  2485. dds_decoder_select="texturedsp"

  2486. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2487. dnxhd_decoder_select="blockdsp idctdsp"

  2488. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2489. dolby_e_decoder_select="mdct"

  2490. dvvideo_decoder_select="dvprofile idctdsp"

  2491. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2492. dxa_decoder_deps="zlib"

  2493. dxv_decoder_select="lzf texturedsp"

  2494. eac3_decoder_select="ac3_decoder"

  2495. eac3_encoder_select="ac3_encoder"

  2496. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2497. eatgq_decoder_select="aandcttables"

  2498. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2499. exr_decoder_deps="zlib"

  2500. ffv1_decoder_select="rangecoder"

  2501. ffv1_encoder_select="rangecoder"

  2502. ffvhuff_decoder_select="huffyuv_decoder"

  2503. ffvhuff_encoder_select="huffyuv_encoder"

  2504. fic_decoder_select="golomb"

  2505. flac_decoder_select="flacdsp"

  2506. flac_encoder_select="bswapdsp flacdsp lpc"

  2507. flashsv2_decoder_deps="zlib"

  2508. flashsv2_encoder_deps="zlib"

  2509. flashsv_decoder_deps="zlib"

  2510. flashsv_encoder_deps="zlib"

  2511. flv_decoder_select="h263_decoder"

  2512. flv_encoder_select="h263_encoder"

  2513. fourxm_decoder_select="blockdsp bswapdsp"

  2514. fraps_decoder_select="bswapdsp huffman"

  2515. g2m_decoder_deps="zlib"

  2516. g2m_decoder_select="blockdsp idctdsp jpegtables"

  2517. g729_decoder_select="audiodsp"

  2518. h261_decoder_select="mpegvideo"

  2519. h261_encoder_select="aandcttables mpegvideoenc"

  2520. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2521. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2522. h263i_decoder_select="h263_decoder"

  2523. h263p_decoder_select="h263_decoder"

  2524. h263p_encoder_select="h263_encoder"

  2525. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2526. h264_decoder_suggest="error_resilience"

  2527. hap_decoder_select="snappy texturedsp"

  2528. hap_encoder_deps="libsnappy"

  2529. hap_encoder_select="texturedspenc"

  2530. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2531. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2532. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2533. iac_decoder_select="imc_decoder"

  2534. imc_decoder_select="bswapdsp fft mdct sinewin"

  2535. indeo3_decoder_select="hpeldsp"

  2536. indeo4_decoder_select="ividsp"

  2537. indeo5_decoder_select="ividsp"

  2538. interplay_video_decoder_select="hpeldsp"

  2539. jpegls_decoder_select="mjpeg_decoder"

  2540. jv_decoder_select="blockdsp"

  2541. lagarith_decoder_select="llviddsp"

  2542. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2543. magicyuv_decoder_select="llviddsp"

  2544. magicyuv_encoder_select="llvidencdsp"

  2545. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2546. metasound_decoder_select="lsp mdct sinewin"

  2547. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2548. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2549. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2550. mjpegb_decoder_select="mjpeg_decoder"

  2551. mlp_decoder_select="mlp_parser"

  2552. mlp_encoder_select="lpc"

  2553. motionpixels_decoder_select="bswapdsp"

  2554. mp1_decoder_select="mpegaudio"

  2555. mp1float_decoder_select="mpegaudio"

  2556. mp2_decoder_select="mpegaudio"

  2557. mp2float_decoder_select="mpegaudio"

  2558. mp3_decoder_select="mpegaudio"

  2559. mp3adu_decoder_select="mpegaudio"

  2560. mp3adufloat_decoder_select="mpegaudio"

  2561. mp3float_decoder_select="mpegaudio"

  2562. mp3on4_decoder_select="mpegaudio"

  2563. mp3on4float_decoder_select="mpegaudio"

  2564. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2565. mpc8_decoder_select="mpegaudiodsp"

  2566. mpegvideo_decoder_select="mpegvideo"

  2567. mpeg1video_decoder_select="mpegvideo"

  2568. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2569. mpeg2video_decoder_select="mpegvideo"

  2570. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2571. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2572. mpeg4_encoder_select="h263_encoder"

  2573. msa1_decoder_select="mss34dsp"

  2574. mscc_decoder_deps="zlib"

  2575. msmpeg4v1_decoder_select="h263_decoder"

  2576. msmpeg4v2_decoder_select="h263_decoder"

  2577. msmpeg4v2_encoder_select="h263_encoder"

  2578. msmpeg4v3_decoder_select="h263_decoder"

  2579. msmpeg4v3_encoder_select="h263_encoder"

  2580. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2581. mts2_decoder_select="mss34dsp"

  2582. mxpeg_decoder_select="mjpeg_decoder"

  2583. nellymoser_decoder_select="mdct sinewin"

  2584. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2585. nuv_decoder_select="idctdsp lzo"

  2586. on2avc_decoder_select="mdct"

  2587. opus_decoder_deps="swresample"

  2588. opus_decoder_select="mdct15"

  2589. opus_encoder_select="audio_frame_queue mdct15"

  2590. png_decoder_deps="zlib"

  2591. png_encoder_deps="zlib"

  2592. png_encoder_select="llvidencdsp"

  2593. prores_decoder_select="blockdsp idctdsp"

  2594. prores_encoder_select="fdctdsp"

  2595. qcelp_decoder_select="lsp"

  2596. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2597. ra_144_decoder_select="audiodsp"

  2598. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2599. ralf_decoder_select="golomb"

  2600. rawvideo_decoder_select="bswapdsp"

  2601. rscc_decoder_deps="zlib"

  2602. rtjpeg_decoder_select="me_cmp"

  2603. rv10_decoder_select="h263_decoder"

  2604. rv10_encoder_select="h263_encoder"

  2605. rv20_decoder_select="h263_decoder"

  2606. rv20_encoder_select="h263_encoder"

  2607. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2608. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2609. screenpresso_decoder_deps="zlib"

  2610. shorten_decoder_select="bswapdsp"

  2611. sipr_decoder_select="lsp"

  2612. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2613. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2614. sonic_decoder_select="golomb rangecoder"

  2615. sonic_encoder_select="golomb rangecoder"

  2616. sonic_ls_encoder_select="golomb rangecoder"

  2617. sp5x_decoder_select="mjpeg_decoder"

  2618. srgc_decoder_deps="zlib"

  2619. svq1_decoder_select="hpeldsp"

  2620. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2621. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2622. svq3_decoder_suggest="zlib"

  2623. tak_decoder_select="audiodsp"

  2624. tdsc_decoder_deps="zlib"

  2625. tdsc_decoder_select="mjpeg_decoder"

  2626. theora_decoder_select="vp3_decoder"

  2627. thp_decoder_select="mjpeg_decoder"

  2628. tiff_decoder_suggest="zlib lzma"

  2629. tiff_encoder_suggest="zlib"

  2630. truehd_decoder_select="mlp_parser"

  2631. truehd_encoder_select="lpc"

  2632. truemotion2_decoder_select="bswapdsp"

  2633. truespeech_decoder_select="bswapdsp"

  2634. tscc_decoder_deps="zlib"

  2635. twinvq_decoder_select="mdct lsp sinewin"

  2636. txd_decoder_select="texturedsp"

  2637. utvideo_decoder_select="bswapdsp llviddsp"

  2638. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2639. vble_decoder_select="llviddsp"

  2640. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2641. vc1image_decoder_select="vc1_decoder"

  2642. vorbis_decoder_select="mdct"

  2643. vorbis_encoder_select="mdct"

  2644. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2645. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2646. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2647. vp6a_decoder_select="vp6_decoder"

  2648. vp6f_decoder_select="vp6_decoder"

  2649. vp7_decoder_select="h264pred videodsp vp8dsp"

  2650. vp8_decoder_select="h264pred videodsp vp8dsp"

  2651. vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"

  2652. webp_decoder_select="vp8_decoder exif"

  2653. wmalossless_decoder_select="llauddsp"

  2654. wmapro_decoder_select="mdct sinewin wma_freqs"

  2655. wmav1_decoder_select="mdct sinewin wma_freqs"

  2656. wmav1_encoder_select="mdct sinewin wma_freqs"

  2657. wmav2_decoder_select="mdct sinewin wma_freqs"

  2658. wmav2_encoder_select="mdct sinewin wma_freqs"

  2659. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2660. wmv1_decoder_select="h263_decoder"

  2661. wmv1_encoder_select="h263_encoder"

  2662. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2663. wmv2_encoder_select="h263_encoder wmv2dsp"

  2664. wmv3_decoder_select="vc1_decoder"

  2665. wmv3image_decoder_select="wmv3_decoder"

  2666. xma1_decoder_select="wmapro_decoder"

  2667. xma2_decoder_select="wmapro_decoder"

  2668. zerocodec_decoder_deps="zlib"

  2669. zlib_decoder_deps="zlib"

  2670. zlib_encoder_deps="zlib"

  2671. zmbv_decoder_deps="zlib"

  2672. zmbv_encoder_deps="zlib"

  2673. 

  2674. # hardware accelerators

  2675. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2676. cuda_deps_any="libdl LoadLibrary"

  2677. cuvid_deps="cuda"

  2678. d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2679. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2680. nvdec_deps="cuda"

  2681. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2682. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2683. xvmc_deps="X11_extensions_XvMClib_h"

  2684. 

  2685. h263_vaapi_hwaccel_deps="vaapi"

  2686. h263_vaapi_hwaccel_select="h263_decoder"

  2687. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2688. h263_videotoolbox_hwaccel_select="h263_decoder"

  2689. h264_d3d11va_hwaccel_deps="d3d11va"

  2690. h264_d3d11va_hwaccel_select="h264_decoder"

  2691. h264_d3d11va2_hwaccel_deps="d3d11va"

  2692. h264_d3d11va2_hwaccel_select="h264_decoder"

  2693. h264_dxva2_hwaccel_deps="dxva2"

  2694. h264_dxva2_hwaccel_select="h264_decoder"

  2695. h264_nvdec_hwaccel_deps="nvdec"

  2696. h264_nvdec_hwaccel_select="h264_decoder"

  2697. h264_vaapi_hwaccel_deps="vaapi"

  2698. h264_vaapi_hwaccel_select="h264_decoder"

  2699. h264_vdpau_hwaccel_deps="vdpau"

  2700. h264_vdpau_hwaccel_select="h264_decoder"

  2701. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2702. h264_videotoolbox_hwaccel_select="h264_decoder"

  2703. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2704. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2705. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2706. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2707. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2708. hevc_dxva2_hwaccel_select="hevc_decoder"

  2709. hevc_nvdec_hwaccel_deps="nvdec"

  2710. hevc_nvdec_hwaccel_select="hevc_decoder"

  2711. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2712. hevc_vaapi_hwaccel_select="hevc_decoder"

  2713. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2714. hevc_vdpau_hwaccel_select="hevc_decoder"

  2715. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2716. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2717. mpeg_xvmc_hwaccel_deps="xvmc"

  2718. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2719. mpeg1_nvdec_hwaccel_deps="nvdec"

  2720. mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"

  2721. mpeg1_vdpau_hwaccel_deps="vdpau"

  2722. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2723. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2724. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2725. mpeg1_xvmc_hwaccel_deps="xvmc"

  2726. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2727. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2728. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2729. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2730. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2731. mpeg2_dxva2_hwaccel_deps="dxva2"

  2732. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2733. mpeg2_nvdec_hwaccel_deps="nvdec"

  2734. mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"

  2735. mpeg2_vaapi_hwaccel_deps="vaapi"

  2736. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2737. mpeg2_vdpau_hwaccel_deps="vdpau"

  2738. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2739. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2740. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2741. mpeg2_xvmc_hwaccel_deps="xvmc"

  2742. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2743. mpeg4_nvdec_hwaccel_deps="nvdec"

  2744. mpeg4_nvdec_hwaccel_select="mpeg4_decoder"

  2745. mpeg4_vaapi_hwaccel_deps="vaapi"

  2746. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2747. mpeg4_vdpau_hwaccel_deps="vdpau"

  2748. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2749. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2750. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2751. vc1_d3d11va_hwaccel_deps="d3d11va"

  2752. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2753. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2754. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2755. vc1_dxva2_hwaccel_deps="dxva2"

  2756. vc1_dxva2_hwaccel_select="vc1_decoder"

  2757. vc1_nvdec_hwaccel_deps="nvdec"

  2758. vc1_nvdec_hwaccel_select="vc1_decoder"

  2759. vc1_vaapi_hwaccel_deps="vaapi"

  2760. vc1_vaapi_hwaccel_select="vc1_decoder"

  2761. vc1_vdpau_hwaccel_deps="vdpau"

  2762. vc1_vdpau_hwaccel_select="vc1_decoder"

  2763. vp8_nvdec_hwaccel_deps="nvdec"

  2764. vp8_nvdec_hwaccel_select="vp8_decoder"

  2765. vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"

  2766. vp8_vaapi_hwaccel_select="vp8_decoder"

  2767. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2768. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2769. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2770. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2771. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2772. vp9_dxva2_hwaccel_select="vp9_decoder"

  2773. vp9_nvdec_hwaccel_deps="nvdec"

  2774. vp9_nvdec_hwaccel_select="vp9_decoder"

  2775. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2776. vp9_vaapi_hwaccel_select="vp9_decoder"

  2777. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2778. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2779. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2780. wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"

  2781. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2782. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2783. 

  2784. # hardware-accelerated codecs

  2785. omx_deps="libdl pthreads"

  2786. omx_rpi_select="omx"

  2787. qsv_deps="libmfx"

  2788. qsvdec_select="qsv"

  2789. qsvenc_select="qsv"

  2790. qsvvpp_select="qsv"

  2791. vaapi_encode_deps="vaapi"

  2792. v4l2_m2m_deps_any="linux_videodev2_h"

  2793. 

  2794. hwupload_cuda_filter_deps="cuda"

  2795. scale_npp_filter_deps="cuda libnpp"

  2796. scale_cuda_filter_deps="cuda_sdk"

  2797. thumbnail_cuda_filter_deps="cuda_sdk"

  2798. 

  2799. amf_deps_any="libdl LoadLibrary"

  2800. nvenc_deps="cuda"

  2801. nvenc_deps_any="libdl LoadLibrary"

  2802. nvenc_encoder_deps="nvenc"

  2803. 

  2804. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2805. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2806. h264_amf_encoder_deps="amf"

  2807. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2808. h264_cuvid_decoder_deps="cuvid"

  2809. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2810. h264_mediacodec_decoder_deps="mediacodec"

  2811. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2812. h264_mmal_decoder_deps="mmal"

  2813. h264_nvenc_encoder_deps="nvenc"

  2814. h264_omx_encoder_deps="omx"

  2815. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"

  2816. h264_qsv_encoder_select="qsvenc"

  2817. h264_rkmpp_decoder_deps="rkmpp"

  2818. h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"

  2819. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2820. h264_vaapi_encoder_select="cbs_h264 vaapi_encode"

  2821. h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"

  2822. h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"

  2823. hevc_amf_encoder_deps="amf"

  2824. hevc_cuvid_decoder_deps="cuvid"

  2825. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2826. hevc_mediacodec_decoder_deps="mediacodec"

  2827. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2828. hevc_nvenc_encoder_deps="nvenc"

  2829. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"

  2830. hevc_qsv_encoder_select="hevcparse qsvenc"

  2831. hevc_rkmpp_decoder_deps="rkmpp"

  2832. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2833. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2834. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2835. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2836. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2837. mjpeg_cuvid_decoder_deps="cuvid"

  2838. mjpeg_qsv_encoder_deps="libmfx"

  2839. mjpeg_qsv_encoder_select="qsvenc"

  2840. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2841. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2842. mpeg1_cuvid_decoder_deps="cuvid"

  2843. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2844. mpeg2_crystalhd_decoder_select="crystalhd"

  2845. mpeg2_cuvid_decoder_deps="cuvid"

  2846. mpeg2_mmal_decoder_deps="mmal"

  2847. mpeg2_mediacodec_decoder_deps="mediacodec"

  2848. mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"

  2849. mpeg2_qsv_encoder_select="qsvenc"

  2850. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2851. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2852. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2853. mpeg4_crystalhd_decoder_select="crystalhd"

  2854. mpeg4_cuvid_decoder_deps="cuvid"

  2855. mpeg4_mediacodec_decoder_deps="mediacodec"

  2856. mpeg4_mmal_decoder_deps="mmal"

  2857. mpeg4_omx_encoder_deps="omx"

  2858. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2859. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2860. msmpeg4_crystalhd_decoder_select="crystalhd"

  2861. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2862. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2863. vc1_crystalhd_decoder_select="crystalhd"

  2864. vc1_cuvid_decoder_deps="cuvid"

  2865. vc1_mmal_decoder_deps="mmal"

  2866. vc1_qsv_decoder_select="qsvdec vc1_parser"

  2867. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2868. vp8_cuvid_decoder_deps="cuvid"

  2869. vp8_mediacodec_decoder_deps="mediacodec"

  2870. vp8_qsv_decoder_select="qsvdec vp8_parser"

  2871. vp8_rkmpp_decoder_deps="rkmpp"

  2872. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2873. vp8_vaapi_encoder_select="vaapi_encode"

  2874. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2875. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2876. vp9_cuvid_decoder_deps="cuvid"

  2877. vp9_mediacodec_decoder_deps="mediacodec"

  2878. vp9_rkmpp_decoder_deps="rkmpp"

  2879. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2880. vp9_vaapi_encoder_select="vaapi_encode"

  2881. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2882. wmv3_crystalhd_decoder_select="crystalhd"

  2883. 

  2884. # parsers

  2885. aac_parser_select="adts_header"

  2886. h264_parser_select="golomb h264dsp h264parse"

  2887. hevc_parser_select="hevcparse"

  2888. mpegaudio_parser_select="mpegaudioheader"

  2889. mpegvideo_parser_select="mpegvideo"

  2890. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2891. vc1_parser_select="vc1dsp"

  2892. 

  2893. # bitstream_filters

  2894. aac_adtstoasc_bsf_select="adts_header"

  2895. h264_metadata_bsf_select="cbs_h264"

  2896. h264_redundant_pps_bsf_select="cbs_h264"

  2897. hevc_metadata_bsf_select="cbs_h265"

  2898. mjpeg2jpeg_bsf_select="jpegtables"

  2899. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2900. trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"

  2901. 

  2902. # external libraries

  2903. aac_at_decoder_deps="audiotoolbox"

  2904. aac_at_decoder_select="aac_adtstoasc_bsf"

  2905. ac3_at_decoder_deps="audiotoolbox"

  2906. ac3_at_decoder_select="ac3_parser"

  2907. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2908. alac_at_decoder_deps="audiotoolbox"

  2909. amr_nb_at_decoder_deps="audiotoolbox"

  2910. avisynth_deps_any="libdl LoadLibrary"

  2911. avisynth_demuxer_deps="avisynth"

  2912. avisynth_demuxer_select="riffdec"

  2913. eac3_at_decoder_deps="audiotoolbox"

  2914. eac3_at_decoder_select="ac3_parser"

  2915. gsm_ms_at_decoder_deps="audiotoolbox"

  2916. ilbc_at_decoder_deps="audiotoolbox"

  2917. mp1_at_decoder_deps="audiotoolbox"

  2918. mp2_at_decoder_deps="audiotoolbox"

  2919. mp3_at_decoder_deps="audiotoolbox"

  2920. mp1_at_decoder_select="mpegaudioheader"

  2921. mp2_at_decoder_select="mpegaudioheader"

  2922. mp3_at_decoder_select="mpegaudioheader"

  2923. pcm_alaw_at_decoder_deps="audiotoolbox"

  2924. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2925. qdmc_at_decoder_deps="audiotoolbox"

  2926. qdm2_at_decoder_deps="audiotoolbox"

  2927. aac_at_encoder_deps="audiotoolbox"

  2928. aac_at_encoder_select="audio_frame_queue"

  2929. alac_at_encoder_deps="audiotoolbox"

  2930. alac_at_encoder_select="audio_frame_queue"

  2931. ilbc_at_encoder_deps="audiotoolbox"

  2932. ilbc_at_encoder_select="audio_frame_queue"

  2933. pcm_alaw_at_encoder_deps="audiotoolbox"

  2934. pcm_alaw_at_encoder_select="audio_frame_queue"

  2935. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2936. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2937. chromaprint_muxer_deps="chromaprint"

  2938. h264_videotoolbox_encoder_deps="pthreads"

  2939. h264_videotoolbox_encoder_select="videotoolbox_encoder"

  2940. hevc_videotoolbox_encoder_deps="pthreads"

  2941. hevc_videotoolbox_encoder_select="videotoolbox_encoder"

  2942. libcelt_decoder_deps="libcelt"

  2943. libfdk_aac_decoder_deps="libfdk_aac"

  2944. libfdk_aac_encoder_deps="libfdk_aac"

  2945. libfdk_aac_encoder_select="audio_frame_queue"

  2946. libgme_demuxer_deps="libgme"

  2947. libgsm_decoder_deps="libgsm"

  2948. libgsm_encoder_deps="libgsm"

  2949. libgsm_ms_decoder_deps="libgsm"

  2950. libgsm_ms_encoder_deps="libgsm"

  2951. libilbc_decoder_deps="libilbc"

  2952. libilbc_encoder_deps="libilbc"

  2953. libkvazaar_encoder_deps="libkvazaar"

  2954. libmodplug_demuxer_deps="libmodplug"

  2955. libmp3lame_encoder_deps="libmp3lame"

  2956. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2957. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2958. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2959. libopencore_amrnb_encoder_select="audio_frame_queue"

  2960. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2961. libopenh264_decoder_deps="libopenh264"

  2962. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2963. libopenh264_encoder_deps="libopenh264"

  2964. libopenjpeg_decoder_deps="libopenjpeg"

  2965. libopenjpeg_encoder_deps="libopenjpeg"

  2966. libopenmpt_demuxer_deps="libopenmpt"

  2967. libopus_decoder_deps="libopus"

  2968. libopus_encoder_deps="libopus"

  2969. libopus_encoder_select="audio_frame_queue"

  2970. librsvg_decoder_deps="librsvg"

  2971. libshine_encoder_deps="libshine"

  2972. libshine_encoder_select="audio_frame_queue"

  2973. libspeex_decoder_deps="libspeex"

  2974. libspeex_encoder_deps="libspeex"

  2975. libspeex_encoder_select="audio_frame_queue"

  2976. libtheora_encoder_deps="libtheora"

  2977. libtwolame_encoder_deps="libtwolame"

  2978. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2979. libvorbis_decoder_deps="libvorbis"

  2980. libvorbis_encoder_deps="libvorbis libvorbisenc"

  2981. libvorbis_encoder_select="audio_frame_queue"

  2982. libvpx_vp8_decoder_deps="libvpx"

  2983. libvpx_vp8_encoder_deps="libvpx"

  2984. libvpx_vp9_decoder_deps="libvpx"

  2985. libvpx_vp9_encoder_deps="libvpx"

  2986. libwavpack_encoder_deps="libwavpack"

  2987. libwavpack_encoder_select="audio_frame_queue"

  2988. libwebp_encoder_deps="libwebp"

  2989. libwebp_anim_encoder_deps="libwebp"

  2990. libx262_encoder_deps="libx262"

  2991. libx264_encoder_deps="libx264"

  2992. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2993. libx264rgb_encoder_select="libx264_encoder"

  2994. libx265_encoder_deps="libx265"

  2995. libxavs_encoder_deps="libxavs"

  2996. libxvid_encoder_deps="libxvid"

  2997. libzvbi_teletext_decoder_deps="libzvbi"

  2998. videotoolbox_suggest="coreservices"

  2999. videotoolbox_deps="corefoundation coremedia corevideo"

  3000. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  3001. 

  3002. # demuxers / muxers

  3003. ac3_demuxer_select="ac3_parser"

  3004. aiff_muxer_select="iso_media"

  3005. asf_demuxer_select="riffdec"

  3006. asf_o_demuxer_select="riffdec"

  3007. asf_muxer_select="riffenc"

  3008. asf_stream_muxer_select="asf_muxer"

  3009. avi_demuxer_select="iso_media riffdec exif"

  3010. avi_muxer_select="riffenc"

  3011. caf_demuxer_select="iso_media riffdec"

  3012. caf_muxer_select="iso_media"

  3013. dash_muxer_select="mp4_muxer"

  3014. dash_demuxer_deps="libxml2"

  3015. dirac_demuxer_select="dirac_parser"

  3016. dts_demuxer_select="dca_parser"

  3017. dtshd_demuxer_select="dca_parser"

  3018. dv_demuxer_select="dvprofile"

  3019. dv_muxer_select="dvprofile"

  3020. dxa_demuxer_select="riffdec"

  3021. eac3_demuxer_select="ac3_parser"

  3022. f4v_muxer_select="mov_muxer"

  3023. fifo_muxer_deps="threads"

  3024. flac_demuxer_select="flac_parser"

  3025. hds_muxer_select="flv_muxer"

  3026. hls_muxer_select="mpegts_muxer"

  3027. hls_muxer_suggest="gcrypt openssl"

  3028. image2_alias_pix_demuxer_select="image2_demuxer"

  3029. image2_brender_pix_demuxer_select="image2_demuxer"

  3030. ipod_muxer_select="mov_muxer"

  3031. ismv_muxer_select="mov_muxer"

  3032. matroska_audio_muxer_select="matroska_muxer"

  3033. matroska_demuxer_select="iso_media riffdec"

  3034. matroska_demuxer_suggest="bzlib lzo zlib"

  3035. matroska_muxer_select="iso_media riffenc"

  3036. mmf_muxer_select="riffenc"

  3037. mov_demuxer_select="iso_media riffdec"

  3038. mov_demuxer_suggest="zlib"

  3039. mov_muxer_select="iso_media riffenc rtpenc_chain"

  3040. mp3_demuxer_select="mpegaudio_parser"

  3041. mp3_muxer_select="mpegaudioheader"

  3042. mp4_muxer_select="mov_muxer"

  3043. mpegts_demuxer_select="iso_media"

  3044. mpegts_muxer_select="adts_muxer latm_muxer"

  3045. mpegtsraw_demuxer_select="mpegts_demuxer"

  3046. mxf_d10_muxer_select="mxf_muxer"

  3047. mxf_opatom_muxer_select="mxf_muxer"

  3048. nut_muxer_select="riffenc"

  3049. nuv_demuxer_select="riffdec"

  3050. oga_muxer_select="ogg_muxer"

  3051. ogg_demuxer_select="dirac_parse"

  3052. ogv_muxer_select="ogg_muxer"

  3053. opus_muxer_select="ogg_muxer"

  3054. psp_muxer_select="mov_muxer"

  3055. rtp_demuxer_select="sdp_demuxer"

  3056. rtp_muxer_select="golomb"

  3057. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  3058. rtsp_demuxer_select="http_protocol rtpdec"

  3059. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  3060. sap_demuxer_select="sdp_demuxer"

  3061. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  3062. sdp_demuxer_select="rtpdec"

  3063. smoothstreaming_muxer_select="ismv_muxer"

  3064. spdif_demuxer_select="adts_header"

  3065. spdif_muxer_select="adts_header"

  3066. spx_muxer_select="ogg_muxer"

  3067. swf_demuxer_suggest="zlib"

  3068. tak_demuxer_select="tak_parser"

  3069. tg2_muxer_select="mov_muxer"

  3070. tgp_muxer_select="mov_muxer"

  3071. vobsub_demuxer_select="mpegps_demuxer"

  3072. w64_demuxer_select="wav_demuxer"

  3073. w64_muxer_select="wav_muxer"

  3074. wav_demuxer_select="riffdec"

  3075. wav_muxer_select="riffenc"

  3076. webm_muxer_select="iso_media riffenc"

  3077. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3078. wtv_demuxer_select="mpegts_demuxer riffdec"

  3079. wtv_muxer_select="mpegts_muxer riffenc"

  3080. xmv_demuxer_select="riffdec"

  3081. xwma_demuxer_select="riffdec"

  3082. 

  3083. # indevs / outdevs

  3084. alsa_indev_deps="alsa"

  3085. alsa_outdev_deps="alsa"

  3086. avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"

  3087. avfoundation_indev_suggest="coregraphics applicationservices"

  3088. avfoundation_indev_extralibs="-framework Foundation"

  3089. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3090. caca_outdev_deps="libcaca"

  3091. decklink_deps_any="libdl LoadLibrary"

  3092. decklink_indev_deps="decklink threads"

  3093. decklink_indev_extralibs="-lstdc++"

  3094. decklink_outdev_deps="decklink threads"

  3095. decklink_outdev_extralibs="-lstdc++"

  3096. libndi_newtek_indev_deps="libndi_newtek"

  3097. libndi_newtek_indev_extralibs="-lndi"

  3098. libndi_newtek_outdev_deps="libndi_newtek"

  3099. libndi_newtek_outdev_extralibs="-lndi"

  3100. dshow_indev_deps="IBaseFilter"

  3101. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3102. fbdev_indev_deps="linux_fb_h"

  3103. fbdev_outdev_deps="linux_fb_h"

  3104. gdigrab_indev_deps="CreateDIBSection"

  3105. gdigrab_indev_extralibs="-lgdi32"

  3106. gdigrab_indev_select="bmp_decoder"

  3107. iec61883_indev_deps="libiec61883"

  3108. jack_indev_deps="libjack"

  3109. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3110. kmsgrab_indev_deps="libdrm"

  3111. lavfi_indev_deps="avfilter"

  3112. libcdio_indev_deps="libcdio"

  3113. libdc1394_indev_deps="libdc1394"

  3114. openal_indev_deps="openal"

  3115. opengl_outdev_deps="opengl"

  3116. oss_indev_deps_any="sys_soundcard_h"

  3117. oss_outdev_deps_any="sys_soundcard_h"

  3118. pulse_indev_deps="libpulse"

  3119. pulse_outdev_deps="libpulse"

  3120. sdl2_outdev_deps="sdl2"

  3121. sndio_indev_deps="sndio"

  3122. sndio_outdev_deps="sndio"

  3123. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3124. v4l2_indev_suggest="libv4l2"

  3125. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3126. v4l2_outdev_suggest="libv4l2"

  3127. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3128. xcbgrab_indev_deps="libxcb"

  3129. xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"

  3130. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3131. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3132. 

  3133. # protocols

  3134. async_protocol_deps="threads"

  3135. bluray_protocol_deps="libbluray"

  3136. ffrtmpcrypt_protocol_conflict="librtmp_protocol"

  3137. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3138. ffrtmpcrypt_protocol_select="tcp_protocol"

  3139. ffrtmphttp_protocol_conflict="librtmp_protocol"

  3140. ffrtmphttp_protocol_select="http_protocol"

  3141. ftp_protocol_select="tcp_protocol"

  3142. gopher_protocol_select="network"

  3143. http_protocol_select="tcp_protocol"

  3144. http_protocol_suggest="zlib"

  3145. httpproxy_protocol_select="tcp_protocol"

  3146. httpproxy_protocol_suggest="zlib"

  3147. https_protocol_select="tls_protocol"

  3148. https_protocol_suggest="zlib"

  3149. icecast_protocol_select="http_protocol"

  3150. librtmp_protocol_deps="librtmp"

  3151. librtmpe_protocol_deps="librtmp"

  3152. librtmps_protocol_deps="librtmp"

  3153. librtmpt_protocol_deps="librtmp"

  3154. librtmpte_protocol_deps="librtmp"

  3155. libsmbclient_protocol_deps="libsmbclient gplv3"

  3156. libssh_protocol_deps="libssh"

  3157. libtls_conflict="openssl gnutls"

  3158. mmsh_protocol_select="http_protocol"

  3159. mmst_protocol_select="network"

  3160. rtmp_protocol_conflict="librtmp_protocol"

  3161. rtmp_protocol_select="tcp_protocol"

  3162. rtmp_protocol_suggest="zlib"

  3163. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3164. rtmpe_protocol_suggest="zlib"

  3165. rtmps_protocol_conflict="librtmp_protocol"

  3166. rtmps_protocol_select="tls_protocol"

  3167. rtmps_protocol_suggest="zlib"

  3168. rtmpt_protocol_select="ffrtmphttp_protocol"

  3169. rtmpt_protocol_suggest="zlib"

  3170. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3171. rtmpte_protocol_suggest="zlib"

  3172. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3173. rtmpts_protocol_suggest="zlib"

  3174. rtp_protocol_select="udp_protocol"

  3175. schannel_conflict="openssl gnutls libtls"

  3176. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3177. sctp_protocol_select="network"

  3178. securetransport_conflict="openssl gnutls libtls"

  3179. srtp_protocol_select="rtp_protocol srtp"

  3180. tcp_protocol_select="network"

  3181. tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"

  3182. tls_protocol_select="tcp_protocol"

  3183. udp_protocol_select="network"

  3184. udplite_protocol_select="network"

  3185. unix_protocol_deps="sys_un_h"

  3186. unix_protocol_select="network"

  3187. 

  3188. # filters

  3189. afftfilt_filter_deps="avcodec"

  3190. afftfilt_filter_select="fft"

  3191. afir_filter_deps="avcodec"

  3192. afir_filter_select="fft"

  3193. amovie_filter_deps="avcodec avformat"

  3194. aresample_filter_deps="swresample"

  3195. ass_filter_deps="libass"

  3196. atempo_filter_deps="avcodec"

  3197. atempo_filter_select="rdft"

  3198. azmq_filter_deps="libzmq"

  3199. blackframe_filter_deps="gpl"

  3200. boxblur_filter_deps="gpl"

  3201. bs2b_filter_deps="libbs2b"

  3202. colormatrix_filter_deps="gpl"

  3203. convolve_filter_deps="avcodec"

  3204. convolve_filter_select="fft"

  3205. coreimage_filter_deps="coreimage appkit"

  3206. coreimage_filter_extralibs="-framework OpenGL"

  3207. coreimagesrc_filter_deps="coreimage appkit"

  3208. coreimagesrc_filter_extralibs="-framework OpenGL"

  3209. cover_rect_filter_deps="avcodec avformat gpl"

  3210. cropdetect_filter_deps="gpl"

  3211. deconvolve_filter_deps="avcodec"

  3212. deconvolve_filter_select="fft"

  3213. deinterlace_qsv_filter_deps="libmfx"

  3214. deinterlace_vaapi_filter_deps="vaapi"

  3215. delogo_filter_deps="gpl"

  3216. denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3217. deshake_filter_select="pixelutils"

  3218. drawtext_filter_deps="libfreetype"

  3219. drawtext_filter_suggest="libfontconfig libfribidi"

  3220. elbg_filter_deps="avcodec"

  3221. eq_filter_deps="gpl"

  3222. fftfilt_filter_deps="avcodec"

  3223. fftfilt_filter_select="rdft"

  3224. find_rect_filter_deps="avcodec avformat gpl"

  3225. firequalizer_filter_deps="avcodec"

  3226. firequalizer_filter_select="rdft"

  3227. flite_filter_deps="libflite"

  3228. framerate_filter_select="pixelutils"

  3229. frei0r_filter_deps="frei0r libdl"

  3230. frei0r_src_filter_deps="frei0r libdl"

  3231. fspp_filter_deps="gpl"

  3232. geq_filter_deps="gpl"

  3233. histeq_filter_deps="gpl"

  3234. hqdn3d_filter_deps="gpl"

  3235. interlace_filter_deps="gpl"

  3236. kerndeint_filter_deps="gpl"

  3237. ladspa_filter_deps="ladspa libdl"

  3238. lv2_filter_deps="lv2"

  3239. mcdeint_filter_deps="avcodec gpl"

  3240. movie_filter_deps="avcodec avformat"

  3241. mpdecimate_filter_deps="gpl"

  3242. mpdecimate_filter_select="pixelutils"

  3243. mptestsrc_filter_deps="gpl"

  3244. negate_filter_deps="lut_filter"

  3245. nnedi_filter_deps="gpl"

  3246. ocr_filter_deps="libtesseract"

  3247. ocv_filter_deps="libopencv"

  3248. openclsrc_filter_deps="opencl"

  3249. overlay_opencl_filter_deps="opencl"

  3250. overlay_qsv_filter_deps="libmfx"

  3251. overlay_qsv_filter_select="qsvvpp"

  3252. owdenoise_filter_deps="gpl"

  3253. pan_filter_deps="swresample"

  3254. perspective_filter_deps="gpl"

  3255. phase_filter_deps="gpl"

  3256. pp7_filter_deps="gpl"

  3257. pp_filter_deps="gpl postproc"

  3258. procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3259. program_opencl_filter_deps="opencl"

  3260. pullup_filter_deps="gpl"

  3261. removelogo_filter_deps="avcodec avformat swscale"

  3262. repeatfields_filter_deps="gpl"

  3263. resample_filter_deps="avresample"

  3264. rubberband_filter_deps="librubberband"

  3265. sab_filter_deps="gpl swscale"

  3266. scale2ref_filter_deps="swscale"

  3267. scale_filter_deps="swscale"

  3268. scale_qsv_filter_deps="libmfx"

  3269. select_filter_select="pixelutils"

  3270. sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3271. showcqt_filter_deps="avcodec avformat swscale"

  3272. showcqt_filter_suggest="libfontconfig libfreetype"

  3273. showcqt_filter_select="fft"

  3274. showfreqs_filter_deps="avcodec"

  3275. showfreqs_filter_select="fft"

  3276. showspectrum_filter_deps="avcodec"

  3277. showspectrum_filter_select="fft"

  3278. showspectrumpic_filter_deps="avcodec"

  3279. showspectrumpic_filter_select="fft"

  3280. signature_filter_deps="gpl avcodec avformat"

  3281. smartblur_filter_deps="gpl swscale"

  3282. sofalizer_filter_deps="libmysofa avcodec"

  3283. sofalizer_filter_select="fft"

  3284. spectrumsynth_filter_deps="avcodec"

  3285. spectrumsynth_filter_select="fft"

  3286. spp_filter_deps="gpl avcodec"

  3287. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3288. stereo3d_filter_deps="gpl"

  3289. subtitles_filter_deps="avformat avcodec libass"

  3290. super2xsai_filter_deps="gpl"

  3291. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3292. tinterlace_filter_deps="gpl"

  3293. tinterlace_merge_test_deps="tinterlace_filter"

  3294. tinterlace_pad_test_deps="tinterlace_filter"

  3295. tonemap_filter_deps="const_nan"

  3296. unsharp_opencl_filter_deps="opencl"

  3297. uspp_filter_deps="gpl avcodec"

  3298. vaguedenoiser_filter_deps="gpl"

  3299. vidstabdetect_filter_deps="libvidstab"

  3300. vidstabtransform_filter_deps="libvidstab"

  3301. libvmaf_filter_deps="libvmaf pthreads"

  3302. zmq_filter_deps="libzmq"

  3303. zoompan_filter_deps="swscale"

  3304. zscale_filter_deps="libzimg const_nan"

  3305. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3306. vpp_qsv_filter_deps="libmfx"

  3307. vpp_qsv_filter_select="qsvvpp"

  3308. 

  3309. # examples

  3310. avio_dir_cmd_deps="avformat avutil"

  3311. avio_reading_deps="avformat avcodec avutil"

  3312. decode_audio_example_deps="avcodec avutil"

  3313. decode_video_example_deps="avcodec avutil"

  3314. demuxing_decoding_example_deps="avcodec avformat avutil"

  3315. encode_audio_example_deps="avcodec avutil"

  3316. encode_video_example_deps="avcodec avutil"

  3317. extract_mvs_example_deps="avcodec avformat avutil"

  3318. filter_audio_example_deps="avfilter avutil"

  3319. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3320. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3321. http_multiclient_example_deps="avformat avutil fork"

  3322. hw_decode_example_deps="avcodec avformat avutil"

  3323. metadata_example_deps="avformat avutil"

  3324. muxing_example_deps="avcodec avformat avutil swscale"

  3325. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3326. remuxing_example_deps="avcodec avformat avutil"

  3327. resampling_audio_example_deps="avutil swresample"

  3328. scaling_video_example_deps="avutil swscale"

  3329. transcode_aac_example_deps="avcodec avformat swresample"

  3330. transcoding_example_deps="avfilter avcodec avformat avutil"

  3331. vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"

  3332. vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"

  3333. 

  3334. # EXTRALIBS_LIST

  3335. cpu_init_extralibs="pthreads_extralibs"

  3336. cws2fws_extralibs="zlib_extralibs"

  3337. 

  3338. # libraries, in linking order

  3339. avcodec_deps="avutil"

  3340. avcodec_suggest="libm"

  3341. avcodec_select="null_bsf"

  3342. avdevice_deps="avformat avcodec avutil"

  3343. avdevice_suggest="libm"

  3344. avfilter_deps="avutil"

  3345. avfilter_suggest="libm"

  3346. avformat_deps="avcodec avutil"

  3347. avformat_suggest="libm network zlib"

  3348. avresample_deps="avutil"

  3349. avresample_suggest="libm"

  3350. avutil_suggest="clock_gettime cuda libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"

  3351. postproc_deps="avutil gpl"

  3352. postproc_suggest="libm"

  3353. swresample_deps="avutil"

  3354. swresample_suggest="libm libsoxr"

  3355. swscale_deps="avutil"

  3356. swscale_suggest="libm"

  3357. 

  3358. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3359. avfilter_extralibs="pthreads_extralibs"

  3360. avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3361. 

  3362. # programs

  3363. ffmpeg_deps="avcodec avfilter avformat swresample"

  3364. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3365.                null_filter

  3366.                trim_filter"

  3367. ffmpeg_suggest="ole32 psapi shell32"

  3368. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3369. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3370. ffplay_suggest="shell32"

  3371. ffprobe_deps="avcodec avformat"

  3372. ffprobe_suggest="shell32"

  3373. 

  3374. # documentation

  3375. podpages_deps="perl"

  3376. manpages_deps="perl pod2man"

  3377. htmlpages_deps="perl"

  3378. htmlpages_deps_any="makeinfo_html texi2html"

  3379. txtpages_deps="perl makeinfo"

  3380. doc_deps_any="manpages htmlpages podpages txtpages"

  3381. 

  3382. # default parameters

  3383. 

  3384. logfile="ffbuild/config.log"

  3385. 

  3386. # installation paths

  3387. prefix_default="/usr/local"

  3388. bindir_default='${prefix}/bin'

  3389. datadir_default='${prefix}/share/ffmpeg'

  3390. docdir_default='${prefix}/share/doc/ffmpeg'

  3391. incdir_default='${prefix}/include'

  3392. libdir_default='${prefix}/lib'

  3393. mandir_default='${prefix}/share/man'

  3394. 

  3395. # toolchain

  3396. ar_default="ar"

  3397. cc_default="gcc"

  3398. cxx_default="g++"

  3399. host_cc_default="gcc"

  3400. doxygen_default="doxygen"

  3401. install="install"

  3402. ln_s_default="ln -s -f"

  3403. nm_default="nm -g"

  3404. pkg_config_default=pkg-config

  3405. ranlib_default="ranlib"

  3406. strip_default="strip"

  3407. version_script='--version-script'

  3408. objformat="elf32"

  3409. x86asmexe_default="nasm"

  3410. windres_default="windres"

  3411. nvcc_default="nvcc"

  3412. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3413. striptype="direct"

  3414. 

  3415. # OS

  3416. target_os_default=$(tolower $(uname -s))

  3417. host_os=$target_os_default

  3418. 

  3419. # machine

  3420. if test "$target_os_default" = aix; then

  3421.     arch_default=$(uname -p)

  3422.     strip_default="strip -X32_64"

  3423. else

  3424.     arch_default=$(uname -m)

  3425. fi

  3426. cpu="generic"

  3427. intrinsics="none"

  3428. 

  3429. # configurable options

  3430. enable $PROGRAM_LIST

  3431. enable $DOCUMENT_LIST

  3432. enable $EXAMPLE_LIST

  3433. enable $(filter_out avresample $LIBRARY_LIST)

  3434. enable stripping

  3435. 

  3436. enable asm

  3437. enable debug

  3438. enable doc

  3439. enable faan faandct faanidct

  3440. enable optimizations

  3441. enable runtime_cpudetect

  3442. enable safe_bitstream_reader

  3443. enable static

  3444. enable swscale_alpha

  3445. enable valgrind_backtrace

  3446. 

  3447. sws_max_filter_size_default=256

  3448. set_default sws_max_filter_size

  3449. 

  3450. # internal components are enabled by default

  3451. enable $EXTRALIBS_LIST

  3452. 

  3453. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3454. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3455. 

  3456. # build settings

  3457. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3458. LIBPREF="lib"

  3459. LIBSUF=".a"

  3460. FULLNAME='$(NAME)$(BUILDSUF)'

  3461. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3462. SLIBPREF="lib"

  3463. SLIBSUF=".so"

  3464. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3465. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3466. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3467. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3468. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3469. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3470. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3471. 

  3472. asflags_filter=echo

  3473. cflags_filter=echo

  3474. ldflags_filter=echo

  3475. 

  3476. AS_C='-c'

  3477. AS_O='-o $@'

  3478. CC_C='-c'

  3479. CC_E='-E -o $@'

  3480. CC_O='-o $@'

  3481. CXX_C='-c'

  3482. CXX_O='-o $@'

  3483. OBJCC_C='-c'

  3484. OBJCC_E='-E -o $@'

  3485. OBJCC_O='-o $@'

  3486. X86ASM_O='-o $@'

  3487. LD_O='-o $@'

  3488. LD_LIB='-l%'

  3489. LD_PATH='-L'

  3490. HOSTCC_C='-c'

  3491. HOSTCC_E='-E -o $@'

  3492. HOSTCC_O='-o $@'

  3493. HOSTLD_O='-o $@'

  3494. NVCC_C='-c'

  3495. NVCC_O='-o $@'

  3496. 

  3497. host_extralibs='-lm'

  3498. host_cflags_filter=echo

  3499. host_ldflags_filter=echo

  3500. 

  3501. target_path='$(CURDIR)'

  3502. 

  3503. # since the object filename is not given with the -MM flag, the compiler

  3504. # is only able to print the basename, and we must add the path ourselves

  3505. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3506. DEPFLAGS='-MM'

  3507. 

  3508. mkdir -p ffbuild

  3509. 

  3510. # find source path

  3511. if test -f configure; then

  3512.     source_path=.

  3513. else

  3514.     source_path=$(cd $(dirname "$0"); pwd)

  3515.     case "$source_path" in

  3516.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3517.     esac

  3518.     test -e "$source_path/config.h" &&

  3519.         die "Out of tree builds are impossible with config.h in source dir."

  3520. fi

  3521. 

  3522. for v in "$@"; do

  3523.     r=${v#*=}

  3524.     l=${v%"$r"}

  3525.     r=$(sh_quote "$r")

  3526.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3527. done

  3528. 

  3529. find_things(){

  3530.     thing=$1

  3531.     pattern=$2

  3532.     file=$source_path/$3

  3533.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3534. }

  3535. 

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

  3537. 

  3538. find_things_extern(){

  3539.     thing=$1

  3540.     pattern=$2

  3541.     file=$source_path/$3

  3542.     out=${4:-$thing}

  3543.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"

  3544. }

  3545. 

  3546. OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)

  3547. INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)

  3548. MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)

  3549. DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)

  3550. ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)

  3551. DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)

  3552. CODEC_LIST="

  3553.     $ENCODER_LIST

  3554.     $DECODER_LIST

  3555. "

  3556. PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parser.c)

  3557. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3558. HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)

  3559. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3560. 

  3561. AVCODEC_COMPONENTS_LIST="

  3562.     $BSF_LIST

  3563.     $DECODER_LIST

  3564.     $ENCODER_LIST

  3565.     $HWACCEL_LIST

  3566.     $PARSER_LIST

  3567. "

  3568. 

  3569. AVDEVICE_COMPONENTS_LIST="

  3570.     $INDEV_LIST

  3571.     $OUTDEV_LIST

  3572. "

  3573. 

  3574. AVFILTER_COMPONENTS_LIST="

  3575.     $FILTER_LIST

  3576. "

  3577. 

  3578. AVFORMAT_COMPONENTS_LIST="

  3579.     $DEMUXER_LIST

  3580.     $MUXER_LIST

  3581.     $PROTOCOL_LIST

  3582. "

  3583. 

  3584. ALL_COMPONENTS="

  3585.     $AVCODEC_COMPONENTS_LIST

  3586.     $AVDEVICE_COMPONENTS_LIST

  3587.     $AVFILTER_COMPONENTS_LIST

  3588.     $AVFORMAT_COMPONENTS_LIST

  3589. "

  3590. 

  3591. for n in $COMPONENT_LIST; do

  3592.     v=$(toupper ${n%s})_LIST

  3593.     eval enable \$$v

  3594.     eval ${n}_if_any="\$$v"

  3595. done

  3596. 

  3597. enable $ARCH_EXT_LIST

  3598. 

  3599. die_unknown(){

  3600.     echo "Unknown option \"$1\"."

  3601.     echo "See $0 --help for available options."

  3602.     exit 1

  3603. }

  3604. 

  3605. print_in_columns() {

  3606.     cols=$(expr $ncols / 24)

  3607.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3608. }

  3609. 

  3610. show_list() {

  3611.     suffix=_$1

  3612.     shift

  3613.     echo $* | sed s/$suffix//g | print_in_columns

  3614.     exit 0

  3615. }

  3616. 

  3617. rand_list(){

  3618.     IFS=', '

  3619.     set -- $*

  3620.     unset IFS

  3621.     for thing; do

  3622.         comp=${thing%:*}

  3623.         prob=${thing#$comp}

  3624.         prob=${prob#:}

  3625.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3626.         echo "prob ${prob:-0.5}"

  3627.         printf '%s\n' $comp

  3628.     done

  3629. }

  3630. 

  3631. do_random(){

  3632.     action=$1

  3633.     shift

  3634.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3635.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3636. }

  3637. 

  3638. for opt do

  3639.     optval="${opt#*=}"

  3640.     case "$opt" in

  3641.         --extra-ldflags=*)

  3642.             add_ldflags $optval

  3643.         ;;

  3644.         --extra-ldexeflags=*)

  3645.             add_ldexeflags $optval

  3646.         ;;

  3647.         --extra-ldsoflags=*)

  3648.             add_ldsoflags $optval

  3649.         ;;

  3650.         --extra-ldlibflags=*)

  3651.             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\

  3652.                  "removed in the future. Use --extra-ldsoflags instead."

  3653.             add_ldsoflags $optval

  3654.         ;;

  3655.         --extra-libs=*)

  3656.             add_extralibs $optval

  3657.         ;;

  3658.         --disable-devices)

  3659.             disable $INDEV_LIST $OUTDEV_LIST

  3660.         ;;

  3661.         --enable-debug=*)

  3662.             debuglevel="$optval"

  3663.         ;;

  3664.         --disable-programs)

  3665.             disable $PROGRAM_LIST

  3666.         ;;

  3667.         --disable-everything)

  3668.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3669.         ;;

  3670.         --disable-all)

  3671.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3672.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3673.             enable avutil

  3674.         ;;

  3675.         --enable-random|--disable-random)

  3676.             action=${opt%%-random}

  3677.             do_random ${action#--} $COMPONENT_LIST

  3678.         ;;

  3679.         --enable-random=*|--disable-random=*)

  3680.             action=${opt%%-random=*}

  3681.             do_random ${action#--} $optval

  3682.         ;;

  3683.         --enable-sdl)

  3684.             enable sdl2

  3685.         ;;

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

  3687.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3688.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3689.             eval list=\$$(toupper $thing)_LIST

  3690.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3691.             list=$(filter "$name" $list)

  3692.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3693.             $action $list

  3694.         ;;

  3695.         --enable-yasm|--disable-yasm)

  3696.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3697.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3698.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3699.         ;;

  3700.         --yasmexe=*)

  3701.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3702.                  "removed in the future. Use --x86asmexe instead."

  3703.             x86asmexe="$optval"

  3704.         ;;

  3705.         --enable-?*|--disable-?*)

  3706.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3707.             if is_in $option $COMPONENT_LIST; then

  3708.                 test $action = disable && action=unset

  3709.                 eval $action \$$(toupper ${option%s})_LIST

  3710.             elif is_in $option $CMDLINE_SELECT; then

  3711.                 $action $option

  3712.             else

  3713.                 die_unknown $opt

  3714.             fi

  3715.         ;;

  3716.         --list-*)

  3717.             NAME="${opt#--list-}"

  3718.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3719.             NAME=${NAME%s}

  3720.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3721.         ;;

  3722.         --help|-h) show_help

  3723.         ;;

  3724.         --quiet|-q) quiet=yes

  3725.         ;;

  3726.         --fatal-warnings) enable fatal_warnings

  3727.         ;;

  3728.         --libfuzzer=*)

  3729.             libfuzzer_path="$optval"

  3730.         ;;

  3731.         *)

  3732.             optname="${opt%%=*}"

  3733.             optname="${optname#--}"

  3734.             optname=$(echo "$optname" | sed 's/-/_/g')

  3735.             if is_in $optname $CMDLINE_SET; then

  3736.                 eval $optname='$optval'

  3737.             elif is_in $optname $CMDLINE_APPEND; then

  3738.                 append $optname "$optval"

  3739.             else

  3740.                 die_unknown $opt

  3741.             fi

  3742.         ;;

  3743.     esac

  3744. done

  3745. 

  3746. for e in $env; do

  3747.     eval "export $e"

  3748. done

  3749. 

  3750. if disabled autodetect; then

  3751. 

  3752.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3753.     # for the iconv from the libc.

  3754.     disabled iconv || enable libc_iconv

  3755. 

  3756.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3757.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3758. fi

  3759. # Mark specifically enabled, but normally autodetected libraries as requested.

  3760. for lib in $AUTODETECT_LIBS; do

  3761.     enabled $lib && request $lib

  3762. done

  3763. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3764. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3765. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3766. 

  3767. disabled logging && logfile=/dev/null

  3768. 

  3769. # command line configuration sanity checks

  3770. 

  3771. # we need to build at least one lib type

  3772. if ! enabled_any static shared; then

  3773.     cat <<EOF

  3774. At least one library type must be built.

  3775. Specify --enable-static to build the static libraries or --enable-shared to

  3776. build the shared libraries as well. To only build the shared libraries specify

  3777. --disable-static in addition to --enable-shared.

  3778. EOF

  3779.     exit 1

  3780. fi

  3781. 

  3782. die_license_disabled() {

  3783.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3784. }

  3785. 

  3786. die_license_disabled_gpl() {

  3787.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3788. }

  3789. 

  3790. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3791. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3792. 

  3793. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3794. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3795. 

  3796. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3797. 

  3798. if enabled nonfree; then

  3799.     license="nonfree and unredistributable"

  3800. elif enabled gplv3; then

  3801.     license="GPL version 3 or later"

  3802. elif enabled lgplv3; then

  3803.     license="LGPL version 3 or later"

  3804. elif enabled gpl; then

  3805.     license="GPL version 2 or later"

  3806. else

  3807.     license="LGPL version 2.1 or later"

  3808. fi

  3809. 

  3810. enabled_all gnutls openssl &&

  3811.     die "GnuTLS and OpenSSL must not be enabled at the same time."

  3812. 

  3813. # Disable all the library-specific components if the library itself

  3814. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3815. 

  3816. disable_components(){

  3817.     disabled ${1} && disable $(

  3818.         eval components="\$$(toupper ${1})_COMPONENTS"

  3819.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3820.     )

  3821. }

  3822. 

  3823. map 'disable_components $v' $LIBRARY_LIST

  3824. 

  3825. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3826. set >> $logfile

  3827. 

  3828. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3829. 

  3830. enabled ossfuzz && {

  3831.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3832.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3833. }

  3834. 

  3835. case "$toolchain" in

  3836.     *-asan)

  3837.         cc_default="${toolchain%-asan}"

  3838.         add_cflags  -fsanitize=address

  3839.         add_ldflags -fsanitize=address

  3840.     ;;

  3841.     *-msan)

  3842.         cc_default="${toolchain%-msan}"

  3843.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3844.         add_ldflags -fsanitize=memory

  3845.     ;;

  3846.     *-tsan)

  3847.         cc_default="${toolchain%-tsan}"

  3848.         add_cflags  -fsanitize=thread -fPIE

  3849.         add_ldflags -fsanitize=thread -pie

  3850.         case "$toolchain" in

  3851.             gcc-tsan)

  3852.                 add_cflags  -fPIC

  3853.                 add_ldflags -fPIC

  3854.                 ;;

  3855.         esac

  3856.     ;;

  3857.     *-usan)

  3858.         cc_default="${toolchain%-usan}"

  3859.         add_cflags  -fsanitize=undefined

  3860.         add_ldflags -fsanitize=undefined

  3861.     ;;

  3862.     valgrind-*)

  3863.         target_exec_default="valgrind"

  3864.         case "$toolchain" in

  3865.             valgrind-massif)

  3866.                 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"

  3867.                 ;;

  3868.             valgrind-memcheck)

  3869.                 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"

  3870.                 ;;

  3871.         esac

  3872.     ;;

  3873.     msvc)

  3874.         # Check whether the current MSVC version needs the C99 converter.

  3875.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3876.         # support enough of C99 to build ffmpeg. Default to the new

  3877.         # behaviour if the regexp was unable to match anything, since this

  3878.         # successfully parses the version number of existing supported

  3879.         # versions that require the converter (MSVC 2010 and 2012).

  3880.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3881.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3882.             cc_default="cl"

  3883.             cxx_default="cl"

  3884.         else

  3885.             cc_default="c99wrap cl"

  3886.             cxx_default="c99wrap cl"

  3887.         fi

  3888.         ld_default="$source_path/compat/windows/mslink"

  3889.         nm_default="dumpbin -symbols"

  3890.         ar_default="lib"

  3891.         case "$arch" in

  3892.         aarch64|arm64)

  3893.             as_default="armasm64"

  3894.             ;;

  3895.         arm*)

  3896.             as_default="armasm"

  3897.             ;;

  3898.         esac

  3899.         target_os_default="win32"

  3900.         # Use a relative path for TMPDIR. This makes sure all the

  3901.         # ffconf temp files are written with a relative path, avoiding

  3902.         # issues with msys/win32 path conversion for MSVC parameters

  3903.         # such as -Fo<file> or -out:<file>.

  3904.         TMPDIR=.

  3905.     ;;

  3906.     icl)

  3907.         cc_default="icl"

  3908.         ld_default="xilink"

  3909.         nm_default="dumpbin -symbols"

  3910.         ar_default="xilib"

  3911.         target_os_default="win32"

  3912.         TMPDIR=.

  3913.     ;;

  3914.     gcov)

  3915.         add_cflags  -fprofile-arcs -ftest-coverage

  3916.         add_ldflags -fprofile-arcs -ftest-coverage

  3917.     ;;

  3918.     llvm-cov)

  3919.         add_cflags -fprofile-arcs -ftest-coverage

  3920.         add_ldflags --coverage

  3921.     ;;

  3922.     hardened)

  3923.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3924.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3925.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3926.         add_cflags   -fPIE

  3927.         add_ldexeflags -fPIE -pie

  3928.     ;;

  3929.     ?*)

  3930.         die "Unknown toolchain $toolchain"

  3931.     ;;

  3932. esac

  3933. 

  3934. if test -n "$cross_prefix"; then

  3935.     test -n "$arch" && test -n "$target_os" ||

  3936.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3937.     enable cross_compile

  3938. fi

  3939. 

  3940. ar_default="${cross_prefix}${ar_default}"

  3941. cc_default="${cross_prefix}${cc_default}"

  3942. cxx_default="${cross_prefix}${cxx_default}"

  3943. nm_default="${cross_prefix}${nm_default}"

  3944. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3945. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3946.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3947. else

  3948.     ranlib_default="${cross_prefix}${ranlib_default}"

  3949. fi

  3950. strip_default="${cross_prefix}${strip_default}"

  3951. windres_default="${cross_prefix}${windres_default}"

  3952. 

  3953. sysinclude_default="${sysroot}/usr/include"

  3954. 

  3955. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3956.     target_exec target_os x86asmexe nvcc

  3957. enabled cross_compile || host_cc_default=$cc

  3958. set_default host_cc

  3959. 

  3960. pkg_config_fail_message=""

  3961. if ! $pkg_config --version >/dev/null 2>&1; then

  3962.     warn "$pkg_config not found, library detection may fail."

  3963.     pkg_config=false

  3964. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3965.     pkg_config_fail_message="

  3966. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3967. fi

  3968. 

  3969. if test $doxygen != $doxygen_default && \

  3970.   ! $doxygen --version >/dev/null 2>&1; then

  3971.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3972. fi

  3973. 

  3974. exesuf() {

  3975.     case $1 in

  3976.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3977.     esac

  3978. }

  3979. 

  3980. EXESUF=$(exesuf $target_os)

  3981. HOSTEXESUF=$(exesuf $host_os)

  3982. 

  3983. # set temporary file name

  3984. : ${TMPDIR:=$TEMPDIR}

  3985. : ${TMPDIR:=$TMP}

  3986. : ${TMPDIR:=/tmp}

  3987. 

  3988. if [ -n "$tempprefix" ] ; then

  3989.     mktemp(){

  3990.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3991.         echo "$tmpname"

  3992.         mkdir "$tmpname"

  3993.     }

  3994. elif ! check_cmd mktemp -u XXXXXX; then

  3995.     # simple replacement for missing mktemp

  3996.     # NOT SAFE FOR GENERAL USE

  3997.     mktemp(){

  3998.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3999.         echo "$tmpname"

  4000.         mkdir "$tmpname"

  4001.     }

  4002. fi

  4003. 

  4004. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  4005.     die "Unable to create temporary directory in $TMPDIR."

  4006. 

  4007. tmpfile(){

  4008.     tmp="${FFTMPDIR}/test"$2

  4009.     (set -C; exec > $tmp) 2> /dev/null ||

  4010.         die "Unable to create temporary file in $FFTMPDIR."

  4011.     eval $1=$tmp

  4012. }

  4013. 

  4014. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  4015. trap 'exit 2' INT

  4016. 

  4017. tmpfile TMPASM .asm

  4018. tmpfile TMPC   .c

  4019. tmpfile TMPCPP .cpp

  4020. tmpfile TMPE   $EXESUF

  4021. tmpfile TMPH   .h

  4022. tmpfile TMPM   .m

  4023. tmpfile TMPO   .o

  4024. tmpfile TMPS   .S

  4025. tmpfile TMPSH  .sh

  4026. tmpfile TMPV   .ver

  4027. 

  4028. unset -f mktemp

  4029. 

  4030. chmod +x $TMPE

  4031. 

  4032. # make sure we can execute files in $TMPDIR

  4033. cat > $TMPSH 2>> $logfile <<EOF

  4034. #! /bin/sh

  4035. EOF

  4036. chmod +x $TMPSH >> $logfile 2>&1

  4037. if ! $TMPSH >> $logfile 2>&1; then

  4038.     cat <<EOF

  4039. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  4040. variable to another directory and make sure that it is not mounted noexec.

  4041. EOF

  4042.     die "Sanity test failed."

  4043. fi

  4044. 

  4045. armasm_flags(){

  4046.     for flag; do

  4047.         case $flag in

  4048.             # Filter out MSVC cl.exe options from cflags that shouldn't

  4049.             # be passed to gas-preprocessor

  4050.             -M[TD]*)                                            ;;

  4051.             *)                  echo $flag                      ;;

  4052.         esac

  4053.    done

  4054. }

  4055. 

  4056. cparser_flags(){

  4057.     for flag; do

  4058.         case $flag in

  4059.             -Wno-switch)             echo -Wno-switch-enum ;;

  4060.             -Wno-format-zero-length) ;;

  4061.             -Wdisabled-optimization) ;;

  4062.             -Wno-pointer-sign)       echo -Wno-other ;;

  4063.             *)                       echo $flag ;;

  4064.         esac

  4065.     done

  4066. }

  4067. 

  4068. msvc_common_flags(){

  4069.     for flag; do

  4070.         case $flag in

  4071.             # In addition to specifying certain flags under the compiler

  4072.             # specific filters, they must be specified here as well or else the

  4073.             # generic catch all at the bottom will print the original flag.

  4074.             -Wall)                ;;

  4075.             -Wextra)              ;;

  4076.             -std=c99)             ;;

  4077.             # Common flags

  4078.             -fomit-frame-pointer) ;;

  4079.             -g)                   echo -Z7 ;;

  4080.             -fno-math-errno)      ;;

  4081.             -fno-common)          ;;

  4082.             -fno-signed-zeros)    ;;

  4083.             -fPIC)                ;;

  4084.             -mthumb)              ;;

  4085.             -march=*)             ;;

  4086.             -lz)                  echo zlib.lib ;;

  4087.             -lx264)               echo libx264.lib ;;

  4088.             -lstdc++)             ;;

  4089.             -l*)                  echo ${flag#-l}.lib ;;

  4090.             -LARGEADDRESSAWARE)   echo $flag ;;

  4091.             -L*)                  echo -libpath:${flag#-L} ;;

  4092.             *)                    echo $flag ;;

  4093.         esac

  4094.     done

  4095. }

  4096. 

  4097. msvc_flags(){

  4098.     msvc_common_flags "$@"

  4099.     for flag; do

  4100.         case $flag in

  4101.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4102.                                        -wd4554 ;;

  4103.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4104.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4105.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4106.                                        -wd4307 \

  4107.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4108.         esac

  4109.     done

  4110. }

  4111. 

  4112. icl_flags(){

  4113.     msvc_common_flags "$@"

  4114.     for flag; do

  4115.         case $flag in

  4116.             # Despite what Intel's documentation says -Wall, which is supported

  4117.             # on Windows, does enable remarks so disable them here.

  4118.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4119.             -std=c99)             echo -Qstd=c99 ;;

  4120.             -flto)                echo -ipo ;;

  4121.         esac

  4122.     done

  4123. }

  4124. 

  4125. icc_flags(){

  4126.     for flag; do

  4127.         case $flag in

  4128.             -flto)                echo -ipo ;;

  4129.             *)                    echo $flag ;;

  4130.         esac

  4131.     done

  4132. }

  4133. 

  4134. suncc_flags(){

  4135.     for flag; do

  4136.         case $flag in

  4137.             -march=*|-mcpu=*)

  4138.                 case "${flag#*=}" in

  4139.                     native)                   echo -xtarget=native       ;;

  4140.                     v9|niagara)               echo -xarch=sparc          ;;

  4141.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4142.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4143.                     i586|pentium)             echo -xchip=pentium        ;;

  4144.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4145.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4146.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4147.                     pentium4*)          echo -xtarget=pentium4           ;;

  4148.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4149.                     *-sse3)             echo -xarch=sse3                 ;;

  4150.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4151.                     bonnell)                   echo -xarch=ssse3         ;;

  4152.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4153.                     westmere)                  echo -xtarget=westmere    ;;

  4154.                     silvermont)                echo -xarch=sse4_2        ;;

  4155.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4156.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4157.                                                echo -xarch=avx           ;;

  4158.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4159.                     btver1)                    echo -xarch=amdsse4a      ;;

  4160.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4161.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4162.                     k8|opteron|athlon64|athlon-fx)

  4163.                                                echo -xarch=sse2a         ;;

  4164.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4165.                 esac

  4166.                 ;;

  4167.             -std=c99)             echo -xc99              ;;

  4168.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4169.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4170.             -W*,*)                echo $flag              ;;

  4171.             -f*-*|-W*|-mimpure-text)                      ;;

  4172.             -shared)              echo -G                 ;;

  4173.             *)                    echo $flag              ;;

  4174.         esac

  4175.     done

  4176. }

  4177. 

  4178. probe_cc(){

  4179.     pfx=$1

  4180.     _cc=$2

  4181.     first=$3

  4182. 

  4183.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4184.     unset _ld_o _ldflags _ld_lib _ld_path

  4185.     unset _depflags _DEPCMD _DEPFLAGS

  4186.     _flags_filter=echo

  4187. 

  4188.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4189.         true # no-op to avoid reading stdin in following checks

  4190.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4191.         _type=llvm_gcc

  4192.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4193.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4194.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4195.         _cflags_speed='-O3'

  4196.         _cflags_size='-Os'

  4197.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4198.         _type=gcc

  4199.         gcc_version=$($_cc --version | head -n1)

  4200.         gcc_basever=$($_cc -dumpversion)

  4201.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4202.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4203.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4204.         case $gcc_basever in

  4205.             2) ;;

  4206.             2.*) ;;

  4207.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4208.         esac

  4209.         if [ "$first" = true ]; then

  4210.             case $gcc_basever in

  4211.                 4.2*)

  4212.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4213.             esac

  4214.         fi

  4215.         _cflags_speed='-O3'

  4216.         _cflags_size='-Os'

  4217.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4218.         _type=icc

  4219.         _ident=$($_cc --version | head -n1)

  4220.         _depflags='-MMD'

  4221.         _cflags_speed='-O3'

  4222.         _cflags_size='-Os'

  4223.         _cflags_noopt='-O1'

  4224.         _flags_filter=icc_flags

  4225.     elif $_cc -v 2>&1 | grep -q xlc; then

  4226.         _type=xlc

  4227.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4228.         _cflags_speed='-O5'

  4229.         _cflags_size='-O5 -qcompact'

  4230.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4231.         test -d "$sysroot" || die "No valid sysroot specified."

  4232.         _type=armcc

  4233.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4234.         armcc_conf="$PWD/armcc.conf"

  4235.         $_cc --arm_linux_configure                 \

  4236.              --arm_linux_config_file="$armcc_conf" \

  4237.              --configure_sysroot="$sysroot"        \

  4238.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4239.              die "Error creating armcc configuration file."

  4240.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4241.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4242.         as_default="${cross_prefix}gcc"

  4243.         _depflags='-MMD'

  4244.         _cflags_speed='-O3'

  4245.         _cflags_size='-Os'

  4246.     elif $_cc -v 2>&1 | grep -q clang; then

  4247.         _type=clang

  4248.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4249.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4250.         _cflags_speed='-O3'

  4251.         _cflags_size='-Oz'

  4252.     elif $_cc -V 2>&1 | grep -q Sun; then

  4253.         _type=suncc

  4254.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4255.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4256.         _DEPFLAGS='-xM1 -xc99'

  4257.         _ldflags='-std=c99'

  4258.         _cflags_speed='-O5'

  4259.         _cflags_size='-O5 -xspace'

  4260.         _flags_filter=suncc_flags

  4261.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4262.         _type=pathscale

  4263.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4264.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4265.         _cflags_speed='-O2'

  4266.         _cflags_size='-Os'

  4267.         _flags_filter='filter_out -Wdisabled-optimization'

  4268.     elif $_cc -v 2>&1 | grep -q Open64; then

  4269.         _type=open64

  4270.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4271.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4272.         _cflags_speed='-O2'

  4273.         _cflags_size='-Os'

  4274.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4275.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4276.         _type=armasm

  4277.         _ident=$($_cc | head -n1)

  4278.         # 4509: "This form of conditional instruction is deprecated"

  4279.         _flags="-nologo -ignore 4509"

  4280.         _flags_filter=armasm_flags

  4281.     elif $_cc 2>&1 | grep -q Intel; then

  4282.         _type=icl

  4283.         _ident=$($_cc 2>&1 | head -n1)

  4284.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4285.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4286.         # versions (tested) as well.

  4287.         _cflags_speed="-O2"

  4288.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4289.         if $_cc 2>&1 | grep -q Linker; then

  4290.             _ld_o='-out:$@'

  4291.         else

  4292.             _ld_o='-Fe$@'

  4293.         fi

  4294.         _cc_o='-Fo$@'

  4295.         _cc_e='-P'

  4296.         _flags_filter=icl_flags

  4297.         _ld_lib='lib%.a'

  4298.         _ld_path='-libpath:'

  4299.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4300.         _flags='-nologo -Qdiag-error:4044,10157'

  4301.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4302.         # with MSVC which enables it by default.

  4303.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4304.         disable stripping

  4305.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4306.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4307.         # the -? parameter gives the help output which contains an identifyable

  4308.         # string, while it gives an error in other modes.

  4309.         _type=lld-link

  4310.         # The link.exe mode doesn't have a switch for getting the version,

  4311.         # but we can force it back to gnu mode and get the version from there.

  4312.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4313.         _ld_o='-out:$@'

  4314.         _flags_filter=msvc_flags

  4315.         _ld_lib='lib%.a'

  4316.         _ld_path='-libpath:'

  4317.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4318.         _type=msvc

  4319.         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')

  4320.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4321.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4322.         _cflags_speed="-O2"

  4323.         _cflags_size="-O1"

  4324.         _cflags_noopt="-O1"

  4325.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4326.             _ld_o='-out:$@'

  4327.         else

  4328.             _ld_o='-Fe$@'

  4329.         fi

  4330.         _cc_o='-Fo$@'

  4331.         _cc_e='-P -Fi$@'

  4332.         _flags_filter=msvc_flags

  4333.         _ld_lib='lib%.a'

  4334.         _ld_path='-libpath:'

  4335.         _flags='-nologo'

  4336.         disable stripping

  4337.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4338.         _type=cparser

  4339.         _ident=$($_cc --version | head -n1)

  4340.         _depflags='-MMD'

  4341.         _cflags_speed='-O4'

  4342.         _cflags_size='-O2'

  4343.         _flags_filter=cparser_flags

  4344.     fi

  4345. 

  4346.     eval ${pfx}_type=\$_type

  4347.     eval ${pfx}_ident=\$_ident

  4348. }

  4349. 

  4350. set_ccvars(){

  4351.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4352.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4353.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4354. 

  4355.     if [ -n "$_depflags" ]; then

  4356.         eval ${1}_DEPFLAGS=\$_depflags

  4357.     else

  4358.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4359.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4360.         eval DEP${1}FLAGS=\$_flags

  4361.     fi

  4362. }

  4363. 

  4364. probe_cc cc "$cc" "true"

  4365. cflags_filter=$_flags_filter

  4366. cflags_speed=$_cflags_speed

  4367. cflags_size=$_cflags_size

  4368. cflags_noopt=$_cflags_noopt

  4369. add_cflags $_flags $_cflags

  4370. cc_ldflags=$_ldflags

  4371. set_ccvars CC

  4372. set_ccvars CXX

  4373. 

  4374. probe_cc hostcc "$host_cc"

  4375. host_cflags_filter=$_flags_filter

  4376. host_cflags_speed=$_cflags_speed

  4377. add_host_cflags  $_flags $_cflags

  4378. set_ccvars HOSTCC

  4379. 

  4380. test -n "$cc_type" && enable $cc_type ||

  4381.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4382. 

  4383. : ${as_default:=$cc}

  4384. : ${objcc_default:=$cc}

  4385. : ${dep_cc_default:=$cc}

  4386. : ${ld_default:=$cc}

  4387. : ${host_ld_default:=$host_cc}

  4388. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4389. 

  4390. probe_cc as "$as"

  4391. asflags_filter=$_flags_filter

  4392. add_asflags $_flags $_cflags

  4393. set_ccvars AS

  4394. 

  4395. probe_cc objcc "$objcc"

  4396. objcflags_filter=$_flags_filter

  4397. add_objcflags $_flags $_cflags

  4398. set_ccvars OBJC

  4399. 

  4400. probe_cc ld "$ld"

  4401. ldflags_filter=$_flags_filter

  4402. add_ldflags $_flags $_ldflags

  4403. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4404. LD_O=${_ld_o-$LD_O}

  4405. LD_LIB=${_ld_lib-$LD_LIB}

  4406. LD_PATH=${_ld_path-$LD_PATH}

  4407. 

  4408. probe_cc hostld "$host_ld"

  4409. host_ldflags_filter=$_flags_filter

  4410. add_host_ldflags $_flags $_ldflags

  4411. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4412. 

  4413. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4414.     probe_cc depcc "$dep_cc"

  4415.     CCDEP=${_DEPCMD:-$DEPCMD}

  4416.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4417.     DEPCCFLAGS=$_flags

  4418. fi

  4419. 

  4420. if $ar 2>&1 | grep -q Microsoft; then

  4421.     arflags="-nologo"

  4422.     ar_o='-out:$@'

  4423. elif $ar 2>&1 | grep -q "\[D\] "; then

  4424.     arflags="rcD"

  4425.     ar_o='$@'

  4426. else

  4427.     arflags="rc"

  4428.     ar_o='$@'

  4429. fi

  4430. 

  4431. add_cflags $extra_cflags

  4432. add_cxxflags $extra_cxxflags

  4433. add_objcflags $extra_objcflags

  4434. add_asflags $extra_cflags

  4435. 

  4436. if test -n "$sysroot"; then

  4437.     case "$cc_type" in

  4438.         gcc|llvm_gcc|clang)

  4439.             add_cppflags --sysroot="$sysroot"

  4440.             add_ldflags --sysroot="$sysroot"

  4441.         ;;

  4442.     esac

  4443. fi

  4444. 

  4445. if test "$cpu" = host; then

  4446.     enabled cross_compile &&

  4447.         die "--cpu=host makes no sense when cross-compiling."

  4448. 

  4449.     case "$cc_type" in

  4450.         gcc|llvm_gcc)

  4451.             check_native(){

  4452.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4453.                 sed -n "/cc1.*$1=/{

  4454.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4455.                             p

  4456.                             q

  4457.                         }" $TMPE

  4458.             }

  4459.             cpu=$(check_native -march || check_native -mcpu)

  4460.         ;;

  4461.         clang)

  4462.             check_native(){

  4463.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4464.                 sed -n "/cc1.*-target-cpu /{

  4465.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4466.                             p

  4467.                             q

  4468.                         }" $TMPE

  4469.             }

  4470.             cpu=$(check_native -march)

  4471.         ;;

  4472.     esac

  4473. 

  4474.     test "${cpu:-host}" = host &&

  4475.         die "--cpu=host not supported with compiler $cc"

  4476. fi

  4477. 

  4478. # Deal with common $arch aliases

  4479. case "$arch" in

  4480.     aarch64|arm64)

  4481.         arch="aarch64"

  4482.     ;;

  4483.     arm*|iPad*|iPhone*)

  4484.         arch="arm"

  4485.     ;;

  4486.     mips*|IP*)

  4487.         case "$arch" in

  4488.         *el)

  4489.             add_cppflags -EL

  4490.             add_ldflags -EL

  4491.         ;;

  4492.         *eb)

  4493.             add_cppflags -EB

  4494.             add_ldflags -EB

  4495.         ;;

  4496.         esac

  4497.         arch="mips"

  4498.     ;;

  4499.     parisc*|hppa*)

  4500.         arch="parisc"

  4501.     ;;

  4502.     "Power Macintosh"|ppc*|powerpc*)

  4503.         arch="ppc"

  4504.     ;;

  4505.     s390|s390x)

  4506.         arch="s390"

  4507.     ;;

  4508.     sh4|sh)

  4509.         arch="sh4"

  4510.     ;;

  4511.     sun4*|sparc*)

  4512.         arch="sparc"

  4513.     ;;

  4514.     tilegx|tile-gx)

  4515.         arch="tilegx"

  4516.     ;;

  4517.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4518.         arch="x86"

  4519.     ;;

  4520. esac

  4521. 

  4522. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4523. enable $arch

  4524. 

  4525. # Add processor-specific flags

  4526. if enabled aarch64; then

  4527. 

  4528.     case $cpu in

  4529.         armv*)

  4530.             cpuflags="-march=$cpu"

  4531.         ;;

  4532.         *)

  4533.             cpuflags="-mcpu=$cpu"

  4534.         ;;

  4535.     esac

  4536. 

  4537. elif enabled alpha; then

  4538. 

  4539.     cpuflags="-mcpu=$cpu"

  4540. 

  4541. elif enabled arm; then

  4542. 

  4543.     check_arm_arch() {

  4544.         check_cpp_condition stddef.h \

  4545.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4546.             $cpuflags

  4547.     }

  4548. 

  4549.     probe_arm_arch() {

  4550.         if   check_arm_arch 4;        then echo armv4

  4551.         elif check_arm_arch 4T;       then echo armv4t

  4552.         elif check_arm_arch 5;        then echo armv5

  4553.         elif check_arm_arch 5E;       then echo armv5e

  4554.         elif check_arm_arch 5T;       then echo armv5t

  4555.         elif check_arm_arch 5TE;      then echo armv5te

  4556.         elif check_arm_arch 5TEJ;     then echo armv5te

  4557.         elif check_arm_arch 6;        then echo armv6

  4558.         elif check_arm_arch 6J;       then echo armv6j

  4559.         elif check_arm_arch 6K;       then echo armv6k

  4560.         elif check_arm_arch 6Z;       then echo armv6z

  4561.         elif check_arm_arch 6KZ;      then echo armv6zk

  4562.         elif check_arm_arch 6ZK;      then echo armv6zk

  4563.         elif check_arm_arch 6T2;      then echo armv6t2

  4564.         elif check_arm_arch 7;        then echo armv7

  4565.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4566.         elif check_arm_arch 7S;       then echo armv7-a

  4567.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4568.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4569.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4570.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4571.         fi

  4572.     }

  4573. 

  4574.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4575. 

  4576.     case $cpu in

  4577.         armv*)

  4578.             cpuflags="-march=$cpu"

  4579.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4580.         ;;

  4581.         *)

  4582.             cpuflags="-mcpu=$cpu"

  4583.             case $cpu in

  4584.                 cortex-a*)                               subarch=armv7a  ;;

  4585.                 cortex-r*)                               subarch=armv7r  ;;

  4586.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4587.                 arm11*)                                  subarch=armv6   ;;

  4588.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4589.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4590.                 *)                             subarch=$(probe_arm_arch) ;;

  4591.             esac

  4592.         ;;

  4593.     esac

  4594. 

  4595.     case "$subarch" in

  4596.         armv5t*)    enable fast_clz                ;;

  4597.         armv[6-8]*)

  4598.             enable fast_clz

  4599.             disabled fast_unaligned || enable fast_unaligned

  4600.             ;;

  4601.     esac

  4602. 

  4603. elif enabled avr32; then

  4604. 

  4605.     case $cpu in

  4606.         ap7[02]0[0-2])

  4607.             subarch="avr32_ap"

  4608.             cpuflags="-mpart=$cpu"

  4609.         ;;

  4610.         ap)

  4611.             subarch="avr32_ap"

  4612.             cpuflags="-march=$cpu"

  4613.         ;;

  4614.         uc3[ab]*)

  4615.             subarch="avr32_uc"

  4616.             cpuflags="-mcpu=$cpu"

  4617.         ;;

  4618.         uc)

  4619.             subarch="avr32_uc"

  4620.             cpuflags="-march=$cpu"

  4621.         ;;

  4622.     esac

  4623. 

  4624. elif enabled bfin; then

  4625. 

  4626.     cpuflags="-mcpu=$cpu"

  4627. 

  4628. elif enabled mips; then

  4629. 

  4630.     cpuflags="-march=$cpu"

  4631. 

  4632.     if [ "$cpu" != "generic" ]; then

  4633.         disable mips32r2

  4634.         disable mips32r5

  4635.         disable mips64r2

  4636.         disable mips32r6

  4637.         disable mips64r6

  4638.         disable loongson2

  4639.         disable loongson3

  4640. 

  4641.         case $cpu in

  4642.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4643.                 enable mips32r2

  4644.                 disable msa

  4645.             ;;

  4646.             p5600|i6400|p6600)

  4647.                 disable mipsdsp

  4648.                 disable mipsdspr2

  4649.             ;;

  4650.             loongson*)

  4651.                 enable loongson2

  4652.                 enable loongson3

  4653.                 enable local_aligned

  4654.                 enable simd_align_16

  4655.                 enable fast_64bit

  4656.                 enable fast_clz

  4657.                 enable fast_cmov

  4658.                 enable fast_unaligned

  4659.                 disable aligned_stack

  4660.                 disable mipsfpu

  4661.                 disable mipsdsp

  4662.                 disable mipsdspr2

  4663.                 case $cpu in

  4664.                     loongson3*)

  4665.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4666.                     ;;

  4667.                     loongson2e)

  4668.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4669.                     ;;

  4670.                     loongson2f)

  4671.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4672.                     ;;

  4673.                 esac

  4674.             ;;

  4675.             *)

  4676.                 # Unknown CPU. Disable everything.

  4677.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4678.                 disable mipsfpu

  4679.                 disable mipsdsp

  4680.                 disable mipsdspr2

  4681.                 disable msa

  4682.                 disable mmi

  4683.             ;;

  4684.         esac

  4685. 

  4686.         case $cpu in

  4687.             24kc)

  4688.                 disable mipsfpu

  4689.                 disable mipsdsp

  4690.                 disable mipsdspr2

  4691.             ;;

  4692.             24kf*)

  4693.                 disable mipsdsp

  4694.                 disable mipsdspr2

  4695.             ;;

  4696.             24kec|34kc|1004kc)

  4697.                 disable mipsfpu

  4698.                 disable mipsdspr2

  4699.             ;;

  4700.             24kef*|34kf*|1004kf*)

  4701.                 disable mipsdspr2

  4702.             ;;

  4703.             74kc)

  4704.                 disable mipsfpu

  4705.             ;;

  4706.             p5600)

  4707.                 enable mips32r5

  4708.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4709.             ;;

  4710.             i6400)

  4711.                 enable mips64r6

  4712.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4713.             ;;

  4714.             p6600)

  4715.                 enable mips64r6

  4716.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4717.             ;;

  4718.         esac

  4719.     else

  4720.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4721.         warn 'generic cpu selected'

  4722.     fi

  4723. 

  4724. elif enabled ppc; then

  4725. 

  4726.     disable ldbrx

  4727. 

  4728.     case $(tolower $cpu) in

  4729.         601|ppc601|powerpc601)

  4730.             cpuflags="-mcpu=601"

  4731.             disable altivec

  4732.         ;;

  4733.         603*|ppc603*|powerpc603*)

  4734.             cpuflags="-mcpu=603"

  4735.             disable altivec

  4736.         ;;

  4737.         604*|ppc604*|powerpc604*)

  4738.             cpuflags="-mcpu=604"

  4739.             disable altivec

  4740.         ;;

  4741.         g3|75*|ppc75*|powerpc75*)

  4742.             cpuflags="-mcpu=750"

  4743.             disable altivec

  4744.         ;;

  4745.         g4|745*|ppc745*|powerpc745*)

  4746.             cpuflags="-mcpu=7450"

  4747.             disable vsx

  4748.         ;;

  4749.         74*|ppc74*|powerpc74*)

  4750.             cpuflags="-mcpu=7400"

  4751.             disable vsx

  4752.         ;;

  4753.         g5|970|ppc970|powerpc970)

  4754.             cpuflags="-mcpu=970"

  4755.             disable vsx

  4756.         ;;

  4757.         power[3-6]*)

  4758.             cpuflags="-mcpu=$cpu"

  4759.             disable vsx

  4760.         ;;

  4761.         power[7-8]*)

  4762.             cpuflags="-mcpu=$cpu"

  4763.         ;;

  4764.         cell)

  4765.             cpuflags="-mcpu=cell"

  4766.             enable ldbrx

  4767.             disable vsx

  4768.         ;;

  4769.         e500mc)

  4770.             cpuflags="-mcpu=e500mc"

  4771.             disable altivec

  4772.         ;;

  4773.         e500v2)

  4774.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4775.             disable altivec

  4776.             disable dcbzl

  4777.         ;;

  4778.         e500)

  4779.             cpuflags="-mcpu=8540 -mhard-float"

  4780.             disable altivec

  4781.             disable dcbzl

  4782.         ;;

  4783.     esac

  4784. 

  4785. elif enabled sparc; then

  4786. 

  4787.     case $cpu in

  4788.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4789.             cpuflags="-mcpu=$cpu"

  4790.         ;;

  4791.         ultrasparc*|niagara[234])

  4792.             cpuflags="-mcpu=$cpu"

  4793.         ;;

  4794.     esac

  4795. 

  4796. elif enabled x86; then

  4797. 

  4798.     case $cpu in

  4799.         i[345]86|pentium)

  4800.             cpuflags="-march=$cpu"

  4801.             disable i686

  4802.             disable mmx

  4803.         ;;

  4804.         # targets that do NOT support nopl and conditional mov (cmov)

  4805.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4806.             cpuflags="-march=$cpu"

  4807.             disable i686

  4808.         ;;

  4809.         # targets that do support nopl and conditional mov (cmov)

  4810.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4811.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4812.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4813.             cpuflags="-march=$cpu"

  4814.             enable i686

  4815.             enable fast_cmov

  4816.         ;;

  4817.         # targets that do support conditional mov but on which it's slow

  4818.         pentium4|pentium4m|prescott|nocona)

  4819.             cpuflags="-march=$cpu"

  4820.             enable i686

  4821.             disable fast_cmov

  4822.         ;;

  4823.     esac

  4824. 

  4825. fi

  4826. 

  4827. if [ "$cpu" != generic ]; then

  4828.     add_cflags  $cpuflags

  4829.     add_asflags $cpuflags

  4830.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4831. fi

  4832. 

  4833. # compiler sanity check

  4834. check_exec <<EOF

  4835. int main(void){ return 0; }

  4836. EOF

  4837. if test "$?" != 0; then

  4838.     echo "$cc is unable to create an executable file."

  4839.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4840.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4841.         echo "Only do this if you know what cross compiling means."

  4842.     fi

  4843.     die "C compiler test failed."

  4844. fi

  4845. 

  4846. add_cppflags -D_ISOC99_SOURCE

  4847. add_cxxflags -D__STDC_CONSTANT_MACROS

  4848. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4849. 

  4850. # some compilers silently accept -std=c11, so we also need to check that the

  4851. # version macro is defined properly

  4852. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4853.     add_cflags -std=c11 ||

  4854.     check_cflags -std=c99

  4855. 

  4856. check_cppflags -D_FILE_OFFSET_BITS=64

  4857. check_cppflags -D_LARGEFILE_SOURCE

  4858. 

  4859. add_host_cppflags -D_ISOC99_SOURCE

  4860. check_host_cflags -std=c99

  4861. check_host_cflags -Wall

  4862. check_host_cflags $host_cflags_speed

  4863. 

  4864. check_64bit(){

  4865.     arch32=$1

  4866.     arch64=$2

  4867.     expr=${3:-'sizeof(void *) > 4'}

  4868.     check_code cc "" "int test[2*($expr) - 1]" &&

  4869.         subarch=$arch64 || subarch=$arch32

  4870.     enable $subarch

  4871. }

  4872. 

  4873. case "$arch" in

  4874.     aarch64|alpha|ia64)

  4875.         enabled shared && enable_weak pic

  4876.     ;;

  4877.     mips)

  4878.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4879.         enabled shared && enable_weak pic

  4880.     ;;

  4881.     parisc)

  4882.         check_64bit parisc parisc64

  4883.         enabled shared && enable_weak pic

  4884.     ;;

  4885.     ppc)

  4886.         check_64bit ppc ppc64

  4887.         enabled shared && enable_weak pic

  4888.     ;;

  4889.     s390)

  4890.         check_64bit s390 s390x

  4891.         enabled shared && enable_weak pic

  4892.     ;;

  4893.     sparc)

  4894.         check_64bit sparc sparc64

  4895.         enabled shared && enable_weak pic

  4896.     ;;

  4897.     x86)

  4898.         check_64bit x86_32 x86_64

  4899.         # Treat x32 as x64 for now. Note it also needs pic if shared

  4900.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4901.             subarch=x86_64 && enable x86_64 && disable x86_32

  4902.         if enabled x86_64; then

  4903.             enabled shared && enable_weak pic

  4904.             objformat=elf64

  4905.         fi

  4906.     ;;

  4907. esac

  4908. 

  4909. # OS specific

  4910. case $target_os in

  4911.     aix)

  4912.         SHFLAGS=-shared

  4913.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4914.         enabled shared && add_ldflags -Wl,-brtl

  4915.         arflags='-Xany -r -c'

  4916.         ;;

  4917.     android)

  4918.         disable symver

  4919.         enable section_data_rel_ro

  4920.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4921.         SLIB_INSTALL_LINKS=

  4922.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4923.         ;;

  4924.     haiku)

  4925.         prefix_default="/boot/common"

  4926.         network_extralibs="-lnetwork"

  4927.         host_extralibs=

  4928.         ;;

  4929.     sunos)

  4930.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4931.         enabled x86 && append SHFLAGS -mimpure-text

  4932.         network_extralibs="-lsocket -lnsl"

  4933.         add_cppflags -D__EXTENSIONS__

  4934.         # When using suncc to build, the Solaris linker will mark

  4935.         # an executable with each instruction set encountered by

  4936.         # the Solaris assembler.  As our libraries contain their own

  4937.         # guards for processor-specific code, instead suppress

  4938.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4939.         enabled_all suncc x86 &&

  4940.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4941.             add_ldflags -Wl,-M,mapfile

  4942.         nm_default='nm -P -g'

  4943.         version_script='-M'

  4944.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4945.         ;;

  4946.     netbsd)

  4947.         disable symver

  4948.         oss_indev_extralibs="-lossaudio"

  4949.         oss_outdev_extralibs="-lossaudio"

  4950.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4951.         ;;

  4952.     openbsd|bitrig)

  4953.         disable symver

  4954.         SHFLAGS='-shared'

  4955.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4956.         SLIB_INSTALL_LINKS=

  4957.         oss_indev_extralibs="-lossaudio"

  4958.         oss_outdev_extralibs="-lossaudio"

  4959.         ;;

  4960.     dragonfly)

  4961.         disable symver

  4962.         ;;

  4963.     freebsd)

  4964.         ;;

  4965.     bsd/os)

  4966.         add_extralibs -lpoll -lgnugetopt

  4967.         strip="strip -d"

  4968.         ;;

  4969.     darwin)

  4970.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4971.         install_name_dir_default='$(SHLIBDIR)'

  4972.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4973.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4974.         strip="${strip} -x"

  4975.         add_ldflags -Wl,-dynamic,-search_paths_first

  4976.         check_cflags -Werror=partial-availability

  4977.         SLIBSUF=".dylib"

  4978.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4979.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4980.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4981.         enabled_any pic shared x86_64 ||

  4982.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4983.         check_header dispatch/dispatch.h &&

  4984.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4985.         if test -n "$sysroot"; then

  4986.             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot

  4987.             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot

  4988.         fi

  4989.         version_script='-exported_symbols_list'

  4990.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4991.         ;;

  4992.     msys*)

  4993.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4994.         ;;

  4995.     mingw32*|mingw64*)

  4996.         target_os=mingw32

  4997.         LIBTARGET=i386

  4998.         if enabled x86_64; then

  4999.             LIBTARGET="i386:x86-64"

  5000.         fi

  5001.         if enabled shared; then

  5002.             # Cannot build both shared and static libs when using dllimport.

  5003.             disable static

  5004.         fi

  5005.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5006.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  5007.         shlibdir_default="$bindir_default"

  5008.         SLIBPREF=""

  5009.         SLIBSUF=".dll"

  5010.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5011.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5012.         if check_cmd lib.exe -list; then

  5013.             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5014.             if enabled x86_64; then

  5015.                 LIBTARGET=x64

  5016.             fi

  5017.         else

  5018.             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'

  5019.         fi

  5020.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5021.         SLIB_INSTALL_LINKS=

  5022.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5023.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5024.         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)'

  5025.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'

  5026.         enabled x86_64 && objformat="win64" || objformat="win32"

  5027.         dlltool="${cross_prefix}dlltool"

  5028.         ranlib=:

  5029.         enable dos_paths

  5030.         check_ldflags -Wl,--nxcompat,--dynamicbase

  5031.         # Lets work around some stupidity in binutils.

  5032.         # ld will strip relocations from executables even though we need them

  5033.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  5034.         # however ld then forgets what the entry point should be (oops) so we

  5035.         # have to manually (re)set it.

  5036.         if enabled x86_32; then

  5037.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  5038.         elif enabled x86_64; then

  5039.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  5040.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  5041.             # Set image base >4GB for extra entropy with HEASLR

  5042.             add_ldexeflags -Wl,--image-base,0x140000000

  5043.             append SHFLAGS -Wl,--image-base,0x180000000

  5044.         fi

  5045.         ;;

  5046.     win32|win64)

  5047.         disable symver

  5048.         if enabled shared; then

  5049.             # Link to the import library instead of the normal static library

  5050.             # for shared libs.

  5051.             LD_LIB='%.lib'

  5052.             # Cannot build both shared and static libs with MSVC or icl.

  5053.             disable static

  5054.         fi

  5055.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5056.         shlibdir_default="$bindir_default"

  5057.         SLIBPREF=""

  5058.         SLIBSUF=".dll"

  5059.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5060.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5061.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5062.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5063.         SLIB_INSTALL_LINKS=

  5064.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5065.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5066.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5067.         enabled x86_64 && objformat="win64" || objformat="win32"

  5068.         ranlib=:

  5069.         enable dos_paths

  5070.         ;;

  5071.     cygwin*)

  5072.         target_os=cygwin

  5073.         shlibdir_default="$bindir_default"

  5074.         SLIBPREF="cyg"

  5075.         SLIBSUF=".dll"

  5076.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5077.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5078.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5079.         SLIB_INSTALL_LINKS=

  5080.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5081.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5082.         enabled x86_64 && objformat="win64" || objformat="win32"

  5083.         enable dos_paths

  5084.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5085.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5086.         ;;

  5087.     *-dos|freedos|opendos)

  5088.         network_extralibs="-lsocket"

  5089.         objformat="coff"

  5090.         enable dos_paths

  5091.         add_cppflags -U__STRICT_ANSI__

  5092.         ;;

  5093.     linux)

  5094.         enable section_data_rel_ro

  5095.         enabled_any arm aarch64 && enable_weak linux_perf

  5096.         ;;

  5097.     irix*)

  5098.         target_os=irix

  5099.         ranlib="echo ignoring ranlib"

  5100.         ;;

  5101.     os/2*)

  5102.         strip="lxlite -CS"

  5103.         striptype=""

  5104.         objformat="aout"

  5105.         add_cppflags -D_GNU_SOURCE

  5106.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5107.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5108.         LIBSUF="_s.a"

  5109.         SLIBPREF=""

  5110.         SLIBSUF=".dll"

  5111.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5112.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5113.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5114.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5115.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5116.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5117.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5118.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5119.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5120.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5121.         SLIB_INSTALL_LINKS=

  5122.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5123.         enable dos_paths

  5124.         enable_weak os2threads

  5125.         ;;

  5126.     gnu/kfreebsd)

  5127.         add_cppflags -D_BSD_SOURCE

  5128.         ;;

  5129.     gnu)

  5130.         ;;

  5131.     qnx)

  5132.         add_cppflags -D_QNX_SOURCE

  5133.         network_extralibs="-lsocket"

  5134.         ;;

  5135.     symbian)

  5136.         SLIBSUF=".dll"

  5137.         enable dos_paths

  5138.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5139.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5140.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5141.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5142.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5143.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5144.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5145.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5146.         ;;

  5147.     minix)

  5148.         ;;

  5149.     none)

  5150.         ;;

  5151.     *)

  5152.         die "Unknown OS '$target_os'."

  5153.         ;;

  5154. esac

  5155. 

  5156. # test if creating links works

  5157. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5158. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5159. mkdir "$link_dest"

  5160. $ln_s "$link_dest" "$link_name"

  5161. touch "$link_dest/test_file"

  5162. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5163.     # create link to source path

  5164.     [ -e src ] && rm src

  5165.     $ln_s "$source_path" src

  5166.     source_link=src

  5167. else

  5168.     # creating directory links doesn't work

  5169.     # fall back to using the full source path

  5170.     source_link="$source_path"

  5171. fi

  5172. # cleanup

  5173. rm -r "$link_dest"

  5174. rm -r "$link_name"

  5175. 

  5176. # determine libc flavour

  5177. 

  5178. probe_libc(){

  5179.     pfx=$1

  5180.     pfx_no_=${pfx%_}

  5181.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5182.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5183.         eval ${pfx}libc_type=uclibc

  5184.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5185.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5186.         eval ${pfx}libc_type=glibc

  5187.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5188.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5189.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5190.         eval ${pfx}libc_type=newlib

  5191.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5192.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5193.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5194.         eval ${pfx}libc_type=mingw64

  5195.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5196.             add_compat msvcrt/snprintf.o

  5197.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5198.         fi

  5199.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5200.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5201.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5202.         check_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5203.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5204.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5205.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5206.         eval ${pfx}libc_type=mingw32

  5207.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5208.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5209.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5210.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5211.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5212.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5213.         check_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5214.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  5215.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5216.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5217.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5218.         eval ${pfx}libc_type=msvcrt

  5219.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5220.             if [ "$pfx" = host_ ]; then

  5221.                 add_host_cppflags -Dsnprintf=_snprintf

  5222.             else

  5223.                 add_compat strtod.o strtod=avpriv_strtod

  5224.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5225.                                              _snprintf=avpriv_snprintf  \

  5226.                                              vsnprintf=avpriv_vsnprintf

  5227.             fi

  5228.         fi

  5229.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5230.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5231.         # 0x601 by default unless something else is set by the user.

  5232.         # This can easily lead to us detecting functions only present

  5233.         # in such new versions and producing binaries requiring windows 7.0.

  5234.         # Therefore explicitly set the default to Vista unless the user has

  5235.         # set something else on the command line.

  5236.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5237.         # family. For these cases, configure is free to use any functions

  5238.         # found in the SDK headers by default. (Alternatively, we could force

  5239.         # _WIN32_WINNT to 0x0602 in that case.)

  5240.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5241.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }

  5242. #ifdef WINAPI_FAMILY

  5243. #include <winapifamily.h>

  5244. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5245. #error not desktop

  5246. #endif

  5247. #endif

  5248. EOF

  5249.         if [ "$pfx" = "" ]; then

  5250.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5251.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5252.         fi

  5253.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5254.         eval ${pfx}libc_type=klibc

  5255.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5256.         eval ${pfx}libc_type=bionic

  5257.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5258.         eval ${pfx}libc_type=solaris

  5259.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5260.     fi

  5261.     check_${pfx}cc <<EOF

  5262. #include <time.h>

  5263. void *v = localtime_r;

  5264. EOF

  5265. test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5266. #include <time.h>

  5267. void *v = localtime_r;

  5268. EOF

  5269. 

  5270.     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}

  5271. }

  5272. 

  5273. probe_libc

  5274. probe_libc host_

  5275. 

  5276. # hacks for compiler/libc/os combinations

  5277. 

  5278. case $libc_type in

  5279.     bionic)

  5280.         add_compat strtod.o strtod=avpriv_strtod

  5281.         ;;

  5282. esac

  5283. 

  5284. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5285.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5286. 

  5287. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5288. 

  5289. set_default libdir

  5290. : ${shlibdir_default:="$libdir"}

  5291. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5292. 

  5293. set_default $PATHS_LIST

  5294. set_default nm

  5295. 

  5296. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5297. 

  5298. enable_weak_pic() {

  5299.     disabled pic && return

  5300.     enable pic

  5301.     add_cppflags -DPIC

  5302.     case "$target_os" in

  5303.     mingw*|cygwin*|win*)

  5304.         ;;

  5305.     *)

  5306.         add_cflags -fPIC

  5307.         add_asflags -fPIC

  5308.         ;;

  5309.     esac

  5310. }

  5311. 

  5312. enabled pic && enable_weak_pic

  5313. 

  5314. check_cc <<EOF || die "Symbol mangling check failed."

  5315. int ff_extern;

  5316. EOF

  5317. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5318. extern_prefix=${sym%%ff_extern*}

  5319. 

  5320. ! disabled inline_asm && check_inline_asm inline_asm '"" ::'

  5321. 

  5322. for restrict_keyword in restrict __restrict__ __restrict ""; do

  5323.     check_cc <<EOF && break

  5324. void foo(char * $restrict_keyword p);

  5325. EOF

  5326. done

  5327. 

  5328. check_cc <<EOF && enable pragma_deprecated

  5329. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5330. EOF

  5331. 

  5332. check_cc <<EOF || die "endian test failed"

  5333. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5334. EOF

  5335. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5336. 

  5337. check_cc <<EOF && enable const_nan

  5338. #include <math.h>

  5339. void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }

  5340. EOF

  5341. 

  5342. if ! enabled ppc64 || enabled bigendian; then

  5343.     disable vsx

  5344. fi

  5345. 

  5346. check_gas() {

  5347.     log "check_gas using '$as' as AS"

  5348.     # :vararg is used on aarch64, arm and ppc altivec

  5349.     check_as <<EOF || return 1

  5350. .macro m n, y:vararg=0

  5351. \n: .int \y

  5352. .endm

  5353. m x

  5354. EOF

  5355.     # .altmacro is only used in arm asm

  5356.     ! enabled arm || check_as <<EOF || return 1

  5357. .altmacro

  5358. EOF

  5359.     enable gnu_as

  5360.     return 0

  5361. }

  5362. 

  5363. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5364.     nogas=:

  5365.     enabled_any arm aarch64 && nogas=die

  5366.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5367.     as_noop=-v

  5368. 

  5369.     case $as_type in

  5370.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5371.         gcc)  gaspp_as_type=gas ;;

  5372.         *)    gaspp_as_type=$as_type ;;

  5373.     esac

  5374. 

  5375.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5376. 

  5377.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5378.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5379.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5380. 

  5381.     if ! check_gas ; then

  5382.         as=${gas:=$as}

  5383.         check_gas || \

  5384.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5385.     fi

  5386. 

  5387.     check_as <<EOF && enable as_func

  5388. .func test

  5389. .endfunc

  5390. EOF

  5391. fi

  5392. 

  5393. check_inline_asm inline_asm_labels '"1:\n"'

  5394. 

  5395. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5396. 

  5397. if enabled aarch64; then

  5398.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5399.     # internal assembler in clang 3.3 does not support this instruction

  5400.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5401.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5402. 

  5403.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5404. 

  5405. elif enabled alpha; then

  5406. 

  5407.     check_cflags -mieee

  5408. 

  5409. elif enabled arm; then

  5410. 

  5411.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5412. 

  5413.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5414. float func(float a, float b){ return a+b; }

  5415. EOF

  5416. 

  5417.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5418. 

  5419.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5420.         enable vfp_args

  5421.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5422.         enable vfp_args

  5423.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5424.         case "${cross_prefix:-$cc}" in

  5425.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5426.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5427. __asm__ (".eabi_attribute 28, 1");

  5428. int main(void) { return 0; }

  5429. EOF

  5430.         esac

  5431.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5432.     fi

  5433. 

  5434.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5435.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5436.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5437.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5438.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5439.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5440.     enabled setend  && check_insn setend  'setend be'

  5441. 

  5442.     [ $target_os = linux ] || [ $target_os = android ] ||

  5443.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5444.             $ARCH_EXT_LIST_ARM

  5445. 

  5446.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5447. 

  5448.     check_as <<EOF && enable as_arch_directive

  5449. .arch armv7-a

  5450. EOF

  5451.     check_as <<EOF && enable as_fpu_directive

  5452. .fpu neon

  5453. EOF

  5454. 

  5455.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5456.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5457.         check_as <<EOF && enable as_object_arch

  5458. .object_arch armv4

  5459. EOF

  5460. 

  5461.     # MS armasm fails to assemble our PIC constructs

  5462.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5463. 

  5464. elif enabled mips; then

  5465. 

  5466.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5467.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5468.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5469. 

  5470.     # Enable minimum ISA based on selected options

  5471.     if enabled mips64; then

  5472.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5473.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5474.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5475.     else

  5476.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5477.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5478.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5479.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5480.     fi

  5481. 

  5482.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5483.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5484.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5485.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5486.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5487. 

  5488.     if enabled bigendian && enabled msa; then

  5489.         disable msa

  5490.     fi

  5491. 

  5492. elif enabled parisc; then

  5493. 

  5494.     if enabled gcc; then

  5495.         case $($cc -dumpversion) in

  5496.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5497.         esac

  5498.     fi

  5499. 

  5500. elif enabled ppc; then

  5501. 

  5502.     enable local_aligned

  5503. 

  5504.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5505.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5506.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5507.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5508. 

  5509.     if enabled altivec; then

  5510.         check_cflags -maltivec -mabi=altivec

  5511. 

  5512.         # check if our compiler supports Motorola AltiVec C API

  5513.         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };

  5514.                                  vector signed int v2 = (vector signed int) { 1 };

  5515.                                  v1 = vec_add(v1, v2);" ||

  5516.             disable altivec

  5517. 

  5518.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5519.     fi

  5520. 

  5521.     if enabled vsx; then

  5522.         check_cflags -mvsx &&

  5523.         check_code cc altivec.h "int v[4] = { 0 };

  5524.                                  vector signed int v1 = vec_vsx_ld(0, v);" ||

  5525.             disable vsx

  5526.     fi

  5527. 

  5528.     if enabled power8; then

  5529.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5530.     fi

  5531. 

  5532. elif enabled x86; then

  5533. 

  5534.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5535.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5536. 

  5537.     enable local_aligned

  5538. 

  5539.     # check whether EBP is available on x86

  5540.     # As 'i' is stored on the stack, this program will crash

  5541.     # if the base pointer is used to access it because the

  5542.     # base pointer is cleared in the inline assembly code.

  5543.     check_exec_crash <<EOF && enable ebp_available

  5544. volatile int i=0;

  5545. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5546. return i;

  5547. EOF

  5548. 

  5549.     # check whether EBX is available on x86

  5550.     check_inline_asm ebx_available '""::"b"(0)' &&

  5551.         check_inline_asm ebx_available '"":::"%ebx"'

  5552. 

  5553.     # check whether xmm clobbers are supported

  5554.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5555. 

  5556.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5557.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5558. 

  5559.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5560.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5561.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5562. 

  5563.     probe_x86asm(){

  5564.         x86asmexe_probe=$1

  5565.         if check_cmd $x86asmexe_probe -v; then

  5566.             x86asmexe=$x86asmexe_probe

  5567.             x86asm_type=nasm

  5568.             x86asm_debug="-g -F dwarf"

  5569.             X86ASMDEP=

  5570.             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5571.         elif check_cmd $x86asmexe_probe --version; then

  5572.             x86asmexe=$x86asmexe_probe

  5573.             x86asm_type=yasm

  5574.             x86asm_debug="-g dwarf2"

  5575.             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5576.             X86ASM_DEPFLAGS=

  5577.         fi

  5578.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5579.     }

  5580. 

  5581.     if ! disabled_any asm mmx x86asm; then

  5582.         disable x86asm

  5583.         for program in $x86asmexe nasm yasm; do

  5584.             probe_x86asm $program && break

  5585.         done

  5586.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5587.         X86ASMFLAGS="-f $objformat"

  5588.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5589.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5590.         case "$objformat" in

  5591.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5592.         esac

  5593. 

  5594.         check_x86asm "vmovdqa32 [eax]{k1}{z}, zmm0"    || disable avx512_external

  5595.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5596.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5597.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5598.         check_x86asm "CPU amdnop" || disable cpunop

  5599.     fi

  5600. 

  5601.     case "$cpu" in

  5602.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5603.             disable fast_clz

  5604.         ;;

  5605.     esac

  5606. 

  5607. fi

  5608. 

  5609. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5610. 

  5611. check_ldflags -Wl,--as-needed

  5612. check_ldflags -Wl,-z,noexecstack

  5613. 

  5614. if ! disabled network; then

  5615.     check_func getaddrinfo $network_extralibs

  5616.     check_func inet_aton $network_extralibs

  5617. 

  5618.     check_type netdb.h "struct addrinfo"

  5619.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5620.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5621.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5622.     check_type poll.h "struct pollfd"

  5623.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5624.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5625.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5626.     check_type netinet/in.h "struct sockaddr_in6"

  5627.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5628.     check_type "sys/types.h sys/socket.h" socklen_t

  5629. 

  5630.     # Prefer arpa/inet.h over winsock2

  5631.     if check_header arpa/inet.h ; then

  5632.         check_func closesocket

  5633.     elif check_header winsock2.h ; then

  5634.         check_func_headers winsock2.h closesocket -lws2 &&

  5635.             network_extralibs="-lws2" ||

  5636.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5637.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5638.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5639. 

  5640.         check_type ws2tcpip.h socklen_t

  5641.         check_type ws2tcpip.h "struct addrinfo"

  5642.         check_type ws2tcpip.h "struct group_source_req"

  5643.         check_type ws2tcpip.h "struct ip_mreq_source"

  5644.         check_type ws2tcpip.h "struct ipv6_mreq"

  5645.         check_type winsock2.h "struct pollfd"

  5646.         check_struct winsock2.h "struct sockaddr" sa_len

  5647.         check_type ws2tcpip.h "struct sockaddr_in6"

  5648.         check_type ws2tcpip.h "struct sockaddr_storage"

  5649.     else

  5650.         disable network

  5651.     fi

  5652. fi

  5653. 

  5654. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5655. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5656. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5657. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5658. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5659. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5660. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5661. 

  5662. case "$custom_allocator" in

  5663.     jemalloc)

  5664.         # jemalloc by default does not use a prefix

  5665.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5666.     ;;

  5667.     tcmalloc)

  5668.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5669.         malloc_prefix=tc_

  5670.     ;;

  5671. esac

  5672. 

  5673. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5674. check_func  ${malloc_prefix}memalign            && enable memalign

  5675. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5676. 

  5677. check_func  access

  5678. check_func_headers stdlib.h arc4random

  5679. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5680. check_func  fcntl

  5681. check_func  fork

  5682. check_func  gethrtime

  5683. check_func  getopt

  5684. check_func  getrusage

  5685. check_func  gettimeofday

  5686. check_func  isatty

  5687. check_func  mkstemp

  5688. check_func  mmap

  5689. check_func  mprotect

  5690. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5691. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5692. check_func  sched_getaffinity

  5693. check_func  setrlimit

  5694. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5695. check_func  strerror_r

  5696. check_func  sysconf

  5697. check_func  sysctl

  5698. check_func  usleep

  5699. 

  5700. check_func_headers conio.h kbhit

  5701. check_func_headers io.h setmode

  5702. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5703. check_func_headers mach/mach_time.h mach_absolute_time

  5704. check_func_headers stdlib.h getenv

  5705. check_func_headers sys/stat.h lstat

  5706. 

  5707. check_func_headers windows.h GetProcessAffinityMask

  5708. check_func_headers windows.h GetProcessTimes

  5709. check_func_headers windows.h GetSystemTimeAsFileTime

  5710. check_func_headers windows.h LoadLibrary

  5711. check_func_headers windows.h MapViewOfFile

  5712. check_func_headers windows.h PeekNamedPipe

  5713. check_func_headers windows.h SetConsoleTextAttribute

  5714. check_func_headers windows.h SetConsoleCtrlHandler

  5715. check_func_headers windows.h Sleep

  5716. check_func_headers windows.h VirtualAlloc

  5717. check_func_headers glob.h glob

  5718. enabled xlib &&

  5719.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5720. 

  5721. check_header direct.h

  5722. check_header dirent.h

  5723. check_header dxgidebug.h

  5724. check_header dxva.h

  5725. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5726. check_header io.h

  5727. check_header libcrystalhd/libcrystalhd_if.h

  5728. check_header malloc.h

  5729. check_header net/udplite.h

  5730. check_header poll.h

  5731. check_header sys/param.h

  5732. check_header sys/resource.h

  5733. check_header sys/select.h

  5734. check_header sys/time.h

  5735. check_header sys/un.h

  5736. check_header termios.h

  5737. check_header unistd.h

  5738. check_header valgrind/valgrind.h

  5739. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5740. check_header windows.h

  5741. check_header X11/extensions/XvMClib.h

  5742. check_header asm/types.h

  5743. 

  5744. # it seems there are versions of clang in some distros that try to use the

  5745. # gcc headers, which explodes for stdatomic

  5746. # so we also check that atomics actually work here

  5747. check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5748. 

  5749. check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32

  5750. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5751. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5752. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5753. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5754. 

  5755. enabled appkit       && check_apple_framework AppKit

  5756. enabled audiotoolbox && check_apple_framework AudioToolbox

  5757. enabled avfoundation && check_apple_framework AVFoundation

  5758. enabled coreimage    && check_apple_framework CoreImage

  5759. enabled videotoolbox && check_apple_framework VideoToolbox

  5760. 

  5761. check_apple_framework CoreFoundation

  5762. check_apple_framework CoreMedia

  5763. check_apple_framework CoreVideo

  5764. 

  5765. enabled avfoundation && {

  5766.     disable coregraphics applicationservices

  5767.     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||

  5768.     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }

  5769. 

  5770. enabled videotoolbox && {

  5771.     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"

  5772.     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"

  5773. }

  5774. 

  5775. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5776. 

  5777. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5778. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5779. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5780. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5781. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5782. 

  5783. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5784. check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"

  5785. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5786. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5787. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5788. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5789. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5790. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5791. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5792. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5793. 

  5794. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5795. 

  5796. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5797. 

  5798. if ! disabled w32threads && ! enabled pthreads; then

  5799.     check_func_headers "windows.h process.h" _beginthreadex &&

  5800.         check_type "windows.h" CONDITION_VARIABLE &&

  5801.         enable w32threads || disable w32threads

  5802.     if ! enabled w32threads && enabled winrt; then

  5803.         check_func_headers "windows.h" CreateThread &&

  5804.             enable w32threads || disable w32threads

  5805.     fi

  5806. fi

  5807. 

  5808. # check for some common methods of building with pthread support

  5809. # do this before the optional library checks as some of them require pthreads

  5810. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5811.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5812.        check_lib pthreads pthread.h pthread_create -pthread; then

  5813.         add_cflags -pthread

  5814.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5815.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5816.         add_cflags -pthreads

  5817.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5818.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5819.         add_cflags -ldl -pthread

  5820.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5821.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5822.         :

  5823.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5824.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5825.         :

  5826.     elif check_func pthread_join && check_func pthread_create; then

  5827.         enable pthreads

  5828.     fi

  5829.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5830. 

  5831.     if enabled pthreads; then

  5832.         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5833.         check_func pthread_cancel $pthreads_extralibs

  5834.     fi

  5835. fi

  5836. 

  5837. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5838. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5839. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5840. 

  5841. # On some systems dynamic loading requires no extra linker flags

  5842. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5843. 

  5844. check_lib libm math.h sin -lm

  5845. 

  5846. atan2f_args=2

  5847. copysign_args=2

  5848. hypot_args=2

  5849. ldexpf_args=2

  5850. powf_args=2

  5851. 

  5852. for func in $MATH_FUNCS; do

  5853.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5854. done

  5855. 

  5856. for func in $COMPLEX_FUNCS; do

  5857.     eval check_complexfunc $func \${${func}_args:-1}

  5858. done

  5859. 

  5860. # these are off by default, so fail if requested and not available

  5861. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5862. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5863. enabled decklink          && { require_header DeckLinkAPI.h &&

  5864.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5865. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5866. enabled frei0r            && require_header frei0r.h

  5867. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5868. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5869. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5870. enabled ladspa            && require_header ladspa.h

  5871. enabled lv2               && require_pkg_config lv2 lilv-0 "lilv-0/lilv/lilv.h" lilv_world_new

  5872. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5873. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5874. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5875. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5876. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5877.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5878.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5879. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5880. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5881. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5882. enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5883.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5884.                                  warn "using libfdk without pkg-config"; } }

  5885. 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"

  5886. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5887. enabled fontconfig        && enable libfontconfig

  5888. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5889. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5890. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5891. enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5892.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5893. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5894.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5895.                                done || die "ERROR: libgsm not found"; }

  5896. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  5897. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5898. # While it may appear that require is being used as a pkg-config

  5899. # fallback for libmfx, it is actually being used to detect a different

  5900. # installation route altogether.  If libmfx is installed via the Intel

  5901. # Media SDK or Intel Media Server Studio, these don't come with

  5902. # pkg-config support.  Instead, users should make sure that the build

  5903. # can find the libraries and headers through other means.

  5904. enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  5905.                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }

  5906. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  5907. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs

  5908. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs

  5909. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5910.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5911.                                die "ERROR: libnpp not found"; }

  5912. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5913. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5914. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5915.                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5916.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5917.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  5918. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  5919. enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  5920.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  5921. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  5922. enabled libopus           && {

  5923.     enabled libopus_decoder && {

  5924.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  5925.     }

  5926.     enabled libopus_encoder && {

  5927.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  5928.     }

  5929. }

  5930. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  5931. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5932. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  5933. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  5934. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  5935. enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  5936.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  5937. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  5938. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  5939. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  5940. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init

  5941. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  5942. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5943. enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure

  5944. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5945.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5946.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5947. enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

  5948. enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5949. enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 0.6.2" libvmaf.h compute_vmaf

  5950. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5951. enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&

  5952.                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  5953. 

  5954. enabled libvpx            && {

  5955.     enabled libvpx_vp8_decoder && {

  5956.         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5957.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  5958.                 die "ERROR: libvpx decoder version must be >=1.4.0";

  5959.     }

  5960.     enabled libvpx_vp8_encoder && {

  5961.         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5962.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  5963.                 die "ERROR: libvpx encoder version must be >=1.4.0";

  5964.     }

  5965.     enabled libvpx_vp9_decoder && {

  5966.         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5967.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  5968.     }

  5969.     enabled libvpx_vp9_encoder && {

  5970.         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5971.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs"

  5972.     }

  5973.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5974.         die "libvpx enabled but no supported decoders found"

  5975.     fi

  5976. }

  5977. 

  5978. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5979. enabled libwebp           && {

  5980.     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5981.     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }

  5982. enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||

  5983.                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&

  5984.                                  warn "using libx264 without pkg-config"; } } &&

  5985.                              require_cpp_condition x264.h "X264_BUILD >= 118" &&

  5986.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5987.                                enable libx262; }

  5988. enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&

  5989.                              require_cpp_condition x265.h "X265_BUILD >= 68"

  5990. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"

  5991. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5992. enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version

  5993. enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new

  5994. enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&

  5995.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5996.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5997. enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion

  5998. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5999. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  6000.                                { ! enabled cross_compile &&

  6001.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  6002.                                  add_ldflags -L/opt/vc/lib/ &&

  6003.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  6004.                                die "ERROR: mmal not found" &&

  6005.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  6006. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  6007.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  6008.                                die "ERROR: openal not found"; } &&

  6009.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  6010.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  6011. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  6012.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  6013.                                die "ERROR: opencl not found"; } &&

  6014.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  6015.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  6016.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  6017. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  6018.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  6019.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  6020.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  6021.                                die "ERROR: opengl not found."

  6022.                              }

  6023. enabled omx               && require_header OMX_Core.h

  6024. enabled omx_rpi           && { check_header OMX_Core.h ||

  6025.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  6026.                                die "ERROR: OpenMAX IL headers not found"; } && enable omx

  6027. enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||

  6028.                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||

  6029.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  6030.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  6031.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  6032.                                die "ERROR: openssl not found"; }

  6033. enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&

  6034.                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&

  6035.                                { enabled libdrm ||

  6036.                                  die "ERROR: rkmpp requires --enable-libdrm"; }

  6037.                              }

  6038. 

  6039. if enabled gcrypt; then

  6040.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6041.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6042.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6043.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6044.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6045.             die "ERROR: gcrypt not found"

  6046.         add_cflags $gcrypt_cflags

  6047.     else

  6048.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6049.     fi

  6050. fi

  6051. 

  6052. if enabled sdl2; then

  6053.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6054.     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent

  6055.     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6056.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6057.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6058.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6059.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6060.         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&

  6061.             enable sdl2

  6062.     fi

  6063.     if test $target_os = "mingw32"; then

  6064.         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)

  6065.     fi

  6066. fi

  6067. 

  6068. if enabled decklink; then

  6069.     case $target_os in

  6070.         mingw32*|mingw64*|win32|win64)

  6071.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6072.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6073.             ;;

  6074.     esac

  6075. fi

  6076. 

  6077. enabled securetransport &&

  6078.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6079.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6080.         disable securetransport

  6081. 

  6082. enabled securetransport &&

  6083.     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"

  6084. 

  6085. enabled schannel &&

  6086.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6087.     check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6088.     schannel_extralibs="-lsecur32" ||

  6089.         disable schannel

  6090. 

  6091. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6092. enabled makeinfo \

  6093.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6094.     && enable makeinfo_html || disable makeinfo_html

  6095. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6096. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6097. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6098. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6099. 

  6100. # check V4L2 codecs available in the API

  6101. check_header linux/fb.h

  6102. check_header linux/videodev2.h

  6103. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6104. check_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m

  6105. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable vc1_v4l2_m2m

  6106. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable mpeg1_v4l2_m2m

  6107. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable mpeg2_v4l2_m2m

  6108. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable mpeg4_v4l2_m2m

  6109. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable hevc_v4l2_m2m

  6110. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable h263_v4l2_m2m

  6111. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable h264_v4l2_m2m

  6112. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable vp8_v4l2_m2m

  6113. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable vp9_v4l2_m2m

  6114. 

  6115. check_header sys/videoio.h

  6116. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6117. 

  6118. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6119. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6120. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6121. # w32api 3.12 had it defined wrong

  6122. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6123. 

  6124. check_type "dshow.h" IBaseFilter

  6125. 

  6126. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6127. check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||

  6128.     check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||

  6129.     check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||

  6130.     check_header "dev/ic/bt8xx.h"

  6131. 

  6132. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6133.     enable_sanitized sys/soundcard.h

  6134. else

  6135.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h

  6136.     #include <sys/soundcard.h>

  6137.     audio_buf_info abc;

  6138. EOF

  6139. fi

  6140. 

  6141. enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||

  6142.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6143. 

  6144. enabled libjack &&

  6145.     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range

  6146. 

  6147. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6148. 

  6149. if enabled libcdio; then

  6150.     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||

  6151.     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||

  6152.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6153.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6154.     die "ERROR: No usable libcdio/cdparanoia found"

  6155. fi

  6156. 

  6157. enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||

  6158.     disable libxcb_shm libxcb_shape libxcb_xfixes

  6159. 

  6160. if enabled libxcb; then

  6161.     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach

  6162.     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles

  6163.     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image

  6164. fi

  6165. 

  6166. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6167. 

  6168. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6169. # the desktop api partition

  6170. check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6171. #ifdef WINAPI_FAMILY

  6172. #include <winapifamily.h>

  6173. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6174. #error desktop, not uwp

  6175. #else

  6176. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6177. #endif

  6178. #else

  6179. #error no family set

  6180. #endif

  6181. EOF

  6182. 

  6183. enabled vaapi &&

  6184.     check_lib vaapi va/va.h vaInitialize -lva

  6185. 

  6186. enabled vaapi &&

  6187.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6188.     disable vaapi

  6189. 

  6190. enabled vaapi &&

  6191.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6192. 

  6193. enabled vaapi &&

  6194.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6195. 

  6196. enabled vaapi &&

  6197.     check_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&

  6198.     enable vaapi_1

  6199. 

  6200. if enabled_all opencl vaapi ; then

  6201.     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&

  6202.         enable opencl_vaapi_beignet

  6203.     if enabled libmfx ; then

  6204.         check_type "CL/cl.h CL/va_ext.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&

  6205.             enable opencl_vaapi_intel_media

  6206.     fi

  6207. fi

  6208. 

  6209. if enabled_all opencl dxva2 ; then

  6210.     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&

  6211.         enable opencl_dxva2

  6212. fi

  6213. 

  6214. if enabled_all opencl d3d11va ; then

  6215.     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&

  6216.         enable opencl_d3d11

  6217. fi

  6218. 

  6219. if enabled_all opencl libdrm ; then

  6220.     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&

  6221.         enable opencl_drm_arm

  6222. fi

  6223. 

  6224. enabled vdpau &&

  6225.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6226.     disable vdpau

  6227. 

  6228. enabled vdpau &&

  6229.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6230. 

  6231. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6232. 

  6233. if enabled x86; then

  6234.     case $target_os in

  6235.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6236.             ;;

  6237.         *)

  6238.             disable cuda cuvid nvdec nvenc

  6239.             ;;

  6240.     esac

  6241. else

  6242.     disable cuda cuvid nvdec nvenc

  6243. fi

  6244. 

  6245. enabled nvenc &&

  6246.     check_cc -I$source_path <<EOF || disable nvenc

  6247. #include "compat/nvenc/nvEncodeAPI.h"

  6248. NV_ENCODE_API_FUNCTION_LIST flist;

  6249. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6250. int main(void) { return 0; }

  6251. EOF

  6252. 

  6253. enabled amf &&

  6254.     check_cpp_condition "AMF/core/Version.h" \

  6255.         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001" ||

  6256.     disable amf

  6257. 

  6258. # Funny iconv installations are not unusual, so check it after all flags have been set

  6259. if enabled libc_iconv; then

  6260.     check_func_headers iconv.h iconv

  6261. elif enabled iconv; then

  6262.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6263. fi

  6264. 

  6265. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6266. 

  6267. # add some useful compiler flags if supported

  6268. check_cflags -Wdeclaration-after-statement

  6269. check_cflags -Wall

  6270. check_cflags -Wdisabled-optimization

  6271. check_cflags -Wpointer-arith

  6272. check_cflags -Wredundant-decls

  6273. check_cflags -Wwrite-strings

  6274. check_cflags -Wtype-limits

  6275. check_cflags -Wundef

  6276. check_cflags -Wmissing-prototypes

  6277. check_cflags -Wno-pointer-to-int-cast

  6278. check_cflags -Wstrict-prototypes

  6279. check_cflags -Wempty-body

  6280. 

  6281. if enabled extra_warnings; then

  6282.     check_cflags -Wcast-qual

  6283.     check_cflags -Wextra

  6284.     check_cflags -Wpedantic

  6285. fi

  6286. 

  6287. check_disable_warning(){

  6288.     warning_flag=-W${1#-Wno-}

  6289.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6290. }

  6291. 

  6292. test_cflags -Werror=unused-command-line-argument &&

  6293.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6294. test_cflags -Werror=unknown-warning-option &&

  6295.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6296. 

  6297. check_disable_warning -Wno-parentheses

  6298. check_disable_warning -Wno-switch

  6299. check_disable_warning -Wno-format-zero-length

  6300. check_disable_warning -Wno-pointer-sign

  6301. check_disable_warning -Wno-unused-const-variable

  6302. check_disable_warning -Wno-bool-operation

  6303. 

  6304. check_disable_warning_headers(){

  6305.     warning_flag=-W${1#-Wno-}

  6306.     test_cflags $warning_flag && add_cflags_headers $1

  6307. }

  6308. 

  6309. check_disable_warning_headers -Wno-deprecated-declarations

  6310. check_disable_warning_headers -Wno-unused-variable

  6311. 

  6312. check_cc <<EOF && enable blocks_extension

  6313. void (^block)(void);

  6314. EOF

  6315. 

  6316. # add some linker flags

  6317. check_ldflags -Wl,--warn-common

  6318. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6319. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir

  6320. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6321. 

  6322. # add some strip flags

  6323. check_stripflags -x

  6324. 

  6325. enabled neon_clobber_test &&

  6326.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6327.                   -Wl,--wrap,avcodec_decode_audio4      \

  6328.                   -Wl,--wrap,avcodec_decode_video2      \

  6329.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6330.                   -Wl,--wrap,avcodec_encode_audio2      \

  6331.                   -Wl,--wrap,avcodec_encode_video2      \

  6332.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6333.                   -Wl,--wrap,avcodec_send_packet        \

  6334.                   -Wl,--wrap,avcodec_receive_packet     \

  6335.                   -Wl,--wrap,avcodec_send_frame         \

  6336.                   -Wl,--wrap,avcodec_receive_frame      \

  6337.                   -Wl,--wrap,swr_convert                \

  6338.                   -Wl,--wrap,avresample_convert ||

  6339.     disable neon_clobber_test

  6340. 

  6341. enabled xmm_clobber_test &&

  6342.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6343.                   -Wl,--wrap,avcodec_decode_audio4      \

  6344.                   -Wl,--wrap,avcodec_decode_video2      \

  6345.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6346.                   -Wl,--wrap,avcodec_encode_audio2      \

  6347.                   -Wl,--wrap,avcodec_encode_video2      \

  6348.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6349.                   -Wl,--wrap,avcodec_send_packet        \

  6350.                   -Wl,--wrap,avcodec_receive_packet     \

  6351.                   -Wl,--wrap,avcodec_send_frame         \

  6352.                   -Wl,--wrap,avcodec_receive_frame      \

  6353.                   -Wl,--wrap,swr_convert                \

  6354.                   -Wl,--wrap,avresample_convert         \

  6355.                   -Wl,--wrap,sws_scale ||

  6356.     disable xmm_clobber_test

  6357. 

  6358. check_ld "cc" <<EOF && enable proper_dce

  6359. extern const int array[512];

  6360. static inline int func(void) { return array[0]; }

  6361. int main(void) { return 0; }

  6362. EOF

  6363. 

  6364. if enabled proper_dce; then

  6365.     echo "X { local: *; };" > $TMPV

  6366.     if test_ldflags -Wl,${version_script},$TMPV; then

  6367.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6368.         quotes='""'

  6369.         check_cc <<EOF && enable symver_asm_label

  6370. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6371. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6372. EOF

  6373.         check_cc <<EOF && enable symver_gnu_asm

  6374. __asm__(".symver ff_foo,av_foo@VERSION");

  6375. void ff_foo(void) {}

  6376. EOF

  6377.     fi

  6378. fi

  6379. 

  6380. if [ -z "$optflags" ]; then

  6381.     if enabled small; then

  6382.         optflags=$cflags_size

  6383.     elif enabled optimizations; then

  6384.         optflags=$cflags_speed

  6385.     else

  6386.         optflags=$cflags_noopt

  6387.     fi

  6388. fi

  6389. 

  6390. if [ -z "$nvccflags" ]; then

  6391.     nvccflags=$nvccflags_default

  6392. fi

  6393. 

  6394. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6395.     nvccflags="$nvccflags -m64"

  6396. else

  6397.     nvccflags="$nvccflags -m32"

  6398. fi

  6399. 

  6400. check_optflags(){

  6401.     check_cflags "$@"

  6402.     enabled lto && check_ldflags "$@"

  6403. }

  6404. 

  6405. check_optflags $optflags

  6406. check_optflags -fno-math-errno

  6407. check_optflags -fno-signed-zeros

  6408. 

  6409. if enabled lto; then

  6410.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6411.     check_cflags  -flto

  6412.     check_ldflags -flto $cpuflags

  6413.     disable inline_asm_direct_symbol_refs

  6414. fi

  6415. 

  6416. enabled ftrapv && check_cflags -ftrapv

  6417. 

  6418. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6419. int x;

  6420. EOF

  6421. 

  6422. 

  6423. if enabled icc; then

  6424.     # Just warnings, no remarks

  6425.     check_cflags -w1

  6426.     # -wd: Disable following warnings

  6427.     # 144, 167, 556: -Wno-pointer-sign

  6428.     # 188: enumerated type mixed with another type

  6429.     # 1292: attribute "foo" ignored

  6430.     # 1419: external declaration in primary source file

  6431.     # 10006: ignoring unknown option -fno-signed-zeros

  6432.     # 10148: ignoring unknown option -Wno-parentheses

  6433.     # 10156: ignoring option '-W'; no argument required

  6434.     # 13200: No EMMS instruction before call to function

  6435.     # 13203: No EMMS instruction before return from function

  6436.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6437.     # 11030: Warning unknown option --as-needed

  6438.     # 10156: ignoring option '-export'; no argument required

  6439.     check_ldflags -wd10156,11030

  6440.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6441.     enable ebp_available

  6442.     # The test above does not test linking

  6443.     enabled lto && disable symver_asm_label

  6444.     if enabled x86_32; then

  6445.         icc_version=$($cc -dumpversion)

  6446.         test ${icc_version%%.*} -ge 11 &&

  6447.             check_cflags -falign-stack=maintain-16-byte ||

  6448.             disable aligned_stack

  6449.     fi

  6450. elif enabled gcc; then

  6451.     check_optflags -fno-tree-vectorize

  6452.     check_cflags -Werror=format-security

  6453.     check_cflags -Werror=implicit-function-declaration

  6454.     check_cflags -Werror=missing-prototypes

  6455.     check_cflags -Werror=return-type

  6456.     check_cflags -Werror=vla

  6457.     check_cflags -Wformat

  6458.     check_cflags -fdiagnostics-color=auto

  6459.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6460. elif enabled llvm_gcc; then

  6461.     check_cflags -mllvm -stack-alignment=16

  6462. elif enabled clang; then

  6463.     check_cflags -mllvm -stack-alignment=16

  6464.     check_cflags -mstack-alignment=16

  6465.     check_cflags -Qunused-arguments

  6466.     check_cflags -Werror=implicit-function-declaration

  6467.     check_cflags -Werror=missing-prototypes

  6468.     check_cflags -Werror=return-type

  6469. elif enabled cparser; then

  6470.     add_cflags -Wno-missing-variable-declarations

  6471.     add_cflags -Wno-empty-statement

  6472. elif enabled armcc; then

  6473.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6474.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6475.     # 2523: use of inline assembly is deprecated

  6476.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6477.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6478.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6479.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6480.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6481.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6482. elif enabled pathscale; then

  6483.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6484.     disable inline_asm

  6485. elif enabled_any msvc icl; then

  6486.     enabled x86_32 && disable aligned_stack

  6487.     enabled_all x86_32 debug && add_cflags -Oy-

  6488.     enabled debug && add_ldflags -debug

  6489.     enable pragma_deprecated

  6490.     if enabled icl; then

  6491.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6492.         # (correctly) on icl 13.x.

  6493.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6494.             add_cflags -Qansi-alias

  6495.         # Some inline asm is not compilable in debug

  6496.         if enabled debug; then

  6497.             disable ebp_available

  6498.             disable ebx_available

  6499.         fi

  6500.     fi

  6501.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6502.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6503.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6504.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6505.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6506.     # MSVC 2013 and newer can handle it fine.

  6507.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6508.     # happens in config.h.

  6509.     if [ $restrict_keyword != restrict ]; then

  6510.         check_cc <<EOF || add_cflags -FIstdlib.h

  6511. __declspec($restrict_keyword) void *foo(int);

  6512. EOF

  6513.     fi

  6514.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6515.     # Issue has been fixed in MSVC v19.00.24218.

  6516.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6517.         check_cflags -d2SSAOptimizer-

  6518.     # enable utf-8 source processing on VS2015 U2 and newer

  6519.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6520.         add_cflags -utf-8

  6521. fi

  6522. 

  6523. for pfx in "" host_; do

  6524.     varname=${pfx%_}cc_type

  6525.     eval "type=\$$varname"

  6526.     if [ "$type" = "msvc" ]; then

  6527.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6528. static inline int foo(int a) { return a; }

  6529. EOF

  6530.     fi

  6531. done

  6532. 

  6533. case $as_type in

  6534.     clang)

  6535.         add_asflags -Qunused-arguments

  6536.     ;;

  6537. esac

  6538. 

  6539. case $ld_type in

  6540.     clang)

  6541.         check_ldflags -Qunused-arguments

  6542.     ;;

  6543. esac

  6544. 

  6545. enable frame_thread_encoder

  6546. 

  6547. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6548. 

  6549. check_deps $CONFIG_LIST       \

  6550.            $CONFIG_EXTRA      \

  6551.            $HAVE_LIST         \

  6552.            $ALL_COMPONENTS    \

  6553. 

  6554. 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"

  6555. enabled avresample && warn "Building with deprecated library libavresample"

  6556. 

  6557. if test $target_os = "haiku"; then

  6558.     disable memalign

  6559.     disable posix_memalign

  6560. fi

  6561. 

  6562. flatten_extralibs(){

  6563.     unset nested_entries

  6564.     list_name=$1

  6565.     eval list=\$${1}

  6566.     for entry in $list; do

  6567.         entry_copy=$entry

  6568.         resolve entry_copy

  6569.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6570.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6571.         eval $entry="\$flat_entries"

  6572.     done

  6573.     append $list_name "$nested_entries"

  6574. 

  6575.     resolve nested_entries

  6576.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6577.         flatten_extralibs $list_name

  6578.     fi

  6579. }

  6580. 

  6581. flatten_extralibs_wrapper(){

  6582.     list_name=$1

  6583.     flatten_extralibs $list_name

  6584.     unique $list_name

  6585.     resolve $list_name

  6586.     eval $list_name=\$\(\$ldflags_filter \$$list_name\)

  6587.     eval printf \''%s'\' \""\$$list_name"\"

  6588. }

  6589. 

  6590. for linkunit in $LIBRARY_LIST; do

  6591.     unset current_extralibs

  6592.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6593.     for comp in ${components}; do

  6594.         enabled $comp || continue

  6595.         comp_extralibs="${comp}_extralibs"

  6596.         append current_extralibs $comp_extralibs

  6597.     done

  6598.     eval prepend ${linkunit}_extralibs $current_extralibs

  6599. done

  6600. 

  6601. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6602.     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)

  6603. done

  6604. 

  6605. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6606. 

  6607. for thread in $THREADS_LIST; do

  6608.     if enabled $thread; then

  6609.         test -n "$thread_type" &&

  6610.             die "ERROR: Only one thread type must be selected." ||

  6611.             thread_type="$thread"

  6612.     fi

  6613. done

  6614. 

  6615. if disabled stdatomic; then

  6616.     if enabled atomics_gcc; then

  6617.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6618.     elif enabled atomics_win32; then

  6619.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6620.     elif enabled atomics_suncc; then

  6621.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6622.     elif enabled pthreads; then

  6623.         add_compat atomics/pthread/stdatomic.o

  6624.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6625.     else

  6626.         enabled threads && die "Threading is enabled, but no atomics are available"

  6627.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6628.     fi

  6629. fi

  6630. 

  6631. # Check if requested libraries were found.

  6632. for lib in $AUTODETECT_LIBS; do

  6633.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6634. done

  6635. 

  6636. enabled zlib && add_cppflags -DZLIB_CONST

  6637. 

  6638. # conditional library dependencies, in linking order

  6639. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6640. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6641. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6642. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6643. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6644. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6645. enabled convolve_filter     && prepend avfilter_deps "avcodec"

  6646. enabled deconvolve_filter   && prepend avfilter_deps "avcodec"

  6647. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6648. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6649. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6650. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6651. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6652. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6653. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6654. enabled pan_filter          && prepend avfilter_deps "swresample"

  6655. enabled pp_filter           && prepend avfilter_deps "postproc"

  6656. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6657. enabled resample_filter && prepend avfilter_deps "avresample"

  6658. enabled sab_filter          && prepend avfilter_deps "swscale"

  6659. enabled scale_filter    && prepend avfilter_deps "swscale"

  6660. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6661. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6662. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6663. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6664. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6665. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6666. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6667. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6668. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6669. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6670. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6671. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6672. 

  6673. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6674. 

  6675. #FIXME

  6676. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6677. 

  6678. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6679. 

  6680. expand_deps(){

  6681.     lib_deps=${1}_deps

  6682.     eval "deps=\$$lib_deps"

  6683.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6684.     unique $lib_deps

  6685. }

  6686. 

  6687. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6688. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6689. 

  6690. map 'expand_deps $v' $LIBRARY_LIST

  6691. 

  6692. if test "$quiet" != "yes"; then

  6693. 

  6694. echo "install prefix            $prefix"

  6695. echo "source path               $source_path"

  6696. echo "C compiler                $cc"

  6697. echo "C library                 $libc_type"

  6698. if test "$host_cc" != "$cc"; then

  6699.     echo "host C compiler           $host_cc"

  6700.     echo "host C library            $host_libc_type"

  6701. fi

  6702. echo "ARCH                      $arch ($cpu)"

  6703. if test "$build_suffix" != ""; then

  6704.     echo "build suffix              $build_suffix"

  6705. fi

  6706. if test "$progs_suffix" != ""; then

  6707.     echo "progs suffix              $progs_suffix"

  6708. fi

  6709. if test "$extra_version" != ""; then

  6710.     echo "version string suffix     $extra_version"

  6711. fi

  6712. echo "big-endian                ${bigendian-no}"

  6713. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6714. if enabled x86; then

  6715.     echo "standalone assembly       ${x86asm-no}"

  6716.     echo "x86 assembler             ${x86asmexe}"

  6717.     echo "MMX enabled               ${mmx-no}"

  6718.     echo "MMXEXT enabled            ${mmxext-no}"

  6719.     echo "3DNow! enabled            ${amd3dnow-no}"

  6720.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6721.     echo "SSE enabled               ${sse-no}"

  6722.     echo "SSSE3 enabled             ${ssse3-no}"

  6723.     echo "AESNI enabled             ${aesni-no}"

  6724.     echo "AVX enabled               ${avx-no}"

  6725.     echo "AVX2 enabled              ${avx2-no}"

  6726.     echo "AVX-512 enabled           ${avx512-no}"

  6727.     echo "XOP enabled               ${xop-no}"

  6728.     echo "FMA3 enabled              ${fma3-no}"

  6729.     echo "FMA4 enabled              ${fma4-no}"

  6730.     echo "i686 features enabled     ${i686-no}"

  6731.     echo "CMOV is fast              ${fast_cmov-no}"

  6732.     echo "EBX available             ${ebx_available-no}"

  6733.     echo "EBP available             ${ebp_available-no}"

  6734. fi

  6735. if enabled aarch64; then

  6736.     echo "NEON enabled              ${neon-no}"

  6737.     echo "VFP enabled               ${vfp-no}"

  6738. fi

  6739. if enabled arm; then

  6740.     echo "ARMv5TE enabled           ${armv5te-no}"

  6741.     echo "ARMv6 enabled             ${armv6-no}"

  6742.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6743.     echo "VFP enabled               ${vfp-no}"

  6744.     echo "NEON enabled              ${neon-no}"

  6745.     echo "THUMB enabled             ${thumb-no}"

  6746. fi

  6747. if enabled mips; then

  6748.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6749.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6750.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6751.     echo "MIPS MSA enabled          ${msa-no}"

  6752.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6753. fi

  6754. if enabled ppc; then

  6755.     echo "AltiVec enabled           ${altivec-no}"

  6756.     echo "VSX enabled               ${vsx-no}"

  6757.     echo "POWER8 enabled            ${power8-no}"

  6758.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6759.     echo "dcbzl available           ${dcbzl-no}"

  6760. fi

  6761. echo "debug symbols             ${debug-no}"

  6762. echo "strip symbols             ${stripping-no}"

  6763. echo "optimize for size         ${small-no}"

  6764. echo "optimizations             ${optimizations-no}"

  6765. echo "static                    ${static-no}"

  6766. echo "shared                    ${shared-no}"

  6767. echo "postprocessing support    ${postproc-no}"

  6768. echo "network support           ${network-no}"

  6769. echo "threading support         ${thread_type-no}"

  6770. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6771. echo "texi2html enabled         ${texi2html-no}"

  6772. echo "perl enabled              ${perl-no}"

  6773. echo "pod2man enabled           ${pod2man-no}"

  6774. echo "makeinfo enabled          ${makeinfo-no}"

  6775. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6776. test -n "$random_seed" &&

  6777.     echo "random seed               ${random_seed}"

  6778. echo

  6779. 

  6780. echo "External libraries:"

  6781. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6782. echo

  6783. 

  6784. echo "External libraries providing hardware acceleration:"

  6785. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6786. echo

  6787. 

  6788. echo "Libraries:"

  6789. print_enabled '' $LIBRARY_LIST | print_in_columns

  6790. echo

  6791. 

  6792. echo "Programs:"

  6793. print_enabled '' $PROGRAM_LIST | print_in_columns

  6794. echo

  6795. 

  6796. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6797.     echo "Enabled ${type}s:"

  6798.     eval list=\$$(toupper $type)_LIST

  6799.     print_enabled '_*' $list | print_in_columns

  6800.     echo

  6801. done

  6802. 

  6803. if test -n "$ignore_tests"; then

  6804.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6805.     echo "Ignored FATE tests:"

  6806.     echo $ignore_tests | print_in_columns

  6807.     echo

  6808. fi

  6809. 

  6810. echo "License: $license"

  6811. 

  6812. fi # test "$quiet" != "yes"

  6813. 

  6814. if test -n "$WARNINGS"; then

  6815.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6816.     enabled fatal_warnings && exit 1

  6817. fi

  6818. 

  6819. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6820. 

  6821. esc(){

  6822.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  6823. }

  6824. 

  6825. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  6826. 

  6827. enabled stripping || strip="echo skipping strip"

  6828. enabled stripping || striptype=""

  6829. 

  6830. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6831. 

  6832. cat > ffbuild/config.mak <<EOF

  6833. # Automatically generated by configure - do not modify!

  6834. ifndef FFMPEG_CONFIG_MAK

  6835. FFMPEG_CONFIG_MAK=1

  6836. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6837. prefix=$prefix

  6838. LIBDIR=\$(DESTDIR)$libdir

  6839. SHLIBDIR=\$(DESTDIR)$shlibdir

  6840. INCDIR=\$(DESTDIR)$incdir

  6841. BINDIR=\$(DESTDIR)$bindir

  6842. DATADIR=\$(DESTDIR)$datadir

  6843. DOCDIR=\$(DESTDIR)$docdir

  6844. MANDIR=\$(DESTDIR)$mandir

  6845. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6846. INSTALL_NAME_DIR=$install_name_dir

  6847. SRC_PATH=$source_path

  6848. SRC_LINK=$source_link

  6849. ifndef MAIN_MAKEFILE

  6850. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6851. endif

  6852. CC_IDENT=$cc_ident

  6853. ARCH=$arch

  6854. INTRINSICS=$intrinsics

  6855. EXTERN_PREFIX=$extern_prefix

  6856. CC=$cc

  6857. CXX=$cxx

  6858. AS=$as

  6859. OBJCC=$objcc

  6860. LD=$ld

  6861. DEPCC=$dep_cc

  6862. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6863. DEPAS=$as

  6864. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6865. X86ASM=$x86asmexe

  6866. DEPX86ASM=$x86asmexe

  6867. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6868. AR=$ar

  6869. ARFLAGS=$arflags

  6870. AR_O=$ar_o

  6871. AR_CMD=$ar

  6872. NM_CMD=$nm

  6873. RANLIB=$ranlib

  6874. STRIP=$strip

  6875. STRIPTYPE=$striptype

  6876. NVCC=$nvcc

  6877. CP=cp -p

  6878. LN_S=$ln_s

  6879. CPPFLAGS=$CPPFLAGS

  6880. CFLAGS=$CFLAGS

  6881. CXXFLAGS=$CXXFLAGS

  6882. OBJCFLAGS=$OBJCFLAGS

  6883. ASFLAGS=$ASFLAGS

  6884. NVCCFLAGS=$nvccflags

  6885. AS_C=$AS_C

  6886. AS_O=$AS_O

  6887. OBJCC_C=$OBJCC_C

  6888. OBJCC_E=$OBJCC_E

  6889. OBJCC_O=$OBJCC_O

  6890. CC_C=$CC_C

  6891. CC_E=$CC_E

  6892. CC_O=$CC_O

  6893. CXX_C=$CXX_C

  6894. CXX_O=$CXX_O

  6895. NVCC_C=$NVCC_C

  6896. NVCC_O=$NVCC_O

  6897. LD_O=$LD_O

  6898. X86ASM_O=$X86ASM_O

  6899. LD_LIB=$LD_LIB

  6900. LD_PATH=$LD_PATH

  6901. DLLTOOL=$dlltool

  6902. WINDRES=$windres

  6903. DEPWINDRES=$dep_cc

  6904. DOXYGEN=$doxygen

  6905. LDFLAGS=$LDFLAGS

  6906. LDEXEFLAGS=$LDEXEFLAGS

  6907. LDSOFLAGS=$LDSOFLAGS

  6908. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6909. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6910. X86ASMFLAGS=$X86ASMFLAGS

  6911. BUILDSUF=$build_suffix

  6912. PROGSSUF=$progs_suffix

  6913. FULLNAME=$FULLNAME

  6914. LIBPREF=$LIBPREF

  6915. LIBSUF=$LIBSUF

  6916. LIBNAME=$LIBNAME

  6917. SLIBPREF=$SLIBPREF

  6918. SLIBSUF=$SLIBSUF

  6919. EXESUF=$EXESUF

  6920. EXTRA_VERSION=$extra_version

  6921. CCDEP=$CCDEP

  6922. CXXDEP=$CXXDEP

  6923. CCDEP_FLAGS=$CCDEP_FLAGS

  6924. ASDEP=$ASDEP

  6925. ASDEP_FLAGS=$ASDEP_FLAGS

  6926. X86ASMDEP=$X86ASMDEP

  6927. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6928. CC_DEPFLAGS=$CC_DEPFLAGS

  6929. AS_DEPFLAGS=$AS_DEPFLAGS

  6930. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6931. HOSTCC=$host_cc

  6932. HOSTLD=$host_ld

  6933. HOSTCFLAGS=$host_cflags

  6934. HOSTCPPFLAGS=$host_cppflags

  6935. HOSTEXESUF=$HOSTEXESUF

  6936. HOSTLDFLAGS=$host_ldflags

  6937. HOSTEXTRALIBS=$host_extralibs

  6938. DEPHOSTCC=$host_cc

  6939. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6940. HOSTCCDEP=$HOSTCCDEP

  6941. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6942. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6943. HOSTCC_C=$HOSTCC_C

  6944. HOSTCC_O=$HOSTCC_O

  6945. HOSTLD_O=$HOSTLD_O

  6946. TARGET_EXEC=$target_exec $target_exec_args

  6947. TARGET_PATH=$target_path

  6948. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6949. CFLAGS-ffplay=${sdl2_cflags}

  6950. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6951. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6952. EXTRALIBS=$extralibs

  6953. COMPAT_OBJS=$compat_objs

  6954. INSTALL=$install

  6955. LIBTARGET=${LIBTARGET}

  6956. SLIBNAME=${SLIBNAME}

  6957. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6958. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6959. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6960. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6961. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6962. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6963. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6964. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6965. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6966. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6967. NOREDZONE_FLAGS=$noredzone_flags

  6968. LIBFUZZER_PATH=$libfuzzer_path

  6969. IGNORE_TESTS=$ignore_tests

  6970. EOF

  6971. 

  6972. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6973. 

  6974. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6975.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  6976. done

  6977. 

  6978. cat > $TMPH <<EOF

  6979. /* Automatically generated by configure - do not modify! */

  6980. #ifndef FFMPEG_CONFIG_H

  6981. #define FFMPEG_CONFIG_H

  6982. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6983. #define FFMPEG_LICENSE "$(c_escape $license)"

  6984. #define CONFIG_THIS_YEAR 2018

  6985. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6986. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6987. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6988. #define av_restrict $restrict_keyword

  6989. #define EXTERN_PREFIX "${extern_prefix}"

  6990. #define EXTERN_ASM ${extern_prefix}

  6991. #define BUILDSUF "$build_suffix"

  6992. #define SLIBSUF "$SLIBSUF"

  6993. #define HAVE_MMX2 HAVE_MMXEXT

  6994. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6995. EOF

  6996. 

  6997. test -n "$assert_level" &&

  6998.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6999. 

  7000. test -n "$malloc_prefix" &&

  7001.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  7002. 

  7003. if enabled x86asm; then

  7004.     append config_files $TMPASM

  7005.     cat > $TMPASM <<EOF

  7006. ; Automatically generated by configure - do not modify!

  7007. EOF

  7008. fi

  7009. 

  7010. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  7011. 

  7012. 

  7013. mkdir -p doc

  7014. mkdir -p tests

  7015. mkdir -p tests/api

  7016. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  7017. 

  7018. print_config ARCH_   "$config_files" $ARCH_LIST

  7019. print_config HAVE_   "$config_files" $HAVE_LIST

  7020. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  7021.                                      $CONFIG_EXTRA      \

  7022.                                      $ALL_COMPONENTS    \

  7023. 

  7024. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  7025. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  7026. 

  7027. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  7028. cp_if_changed $TMPH config.h

  7029. touch ffbuild/.config

  7030. 

  7031. enabled x86asm && cp_if_changed $TMPASM config.asm

  7032. 

  7033. cat > $TMPH <<EOF

  7034. /* Generated by ffmpeg configure */

  7035. #ifndef AVUTIL_AVCONFIG_H

  7036. #define AVUTIL_AVCONFIG_H

  7037. EOF

  7038. 

  7039. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7040. 

  7041. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7042. 

  7043. cp_if_changed $TMPH libavutil/avconfig.h

  7044. 

  7045. # generate the lists of enabled components

  7046. print_enabled_components(){

  7047.     file=$1

  7048.     struct_name=$2

  7049.     name=$3

  7050.     shift 3

  7051.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7052.     for c in $*; do

  7053.         if enabled $c; then

  7054.             case $name in

  7055.                 indev_list)

  7056.                     c=$(add_suffix _demuxer $(remove_suffix _indev $c))

  7057.                 ;;

  7058.                 outdev_list)

  7059.                     c=$(add_suffix _muxer $(remove_suffix _outdev $c))

  7060.                 ;;

  7061.             esac

  7062.             printf "    &ff_%s,\n" $c >> $TMPH

  7063.         fi

  7064.     done

  7065.     echo "    NULL };" >> $TMPH

  7066.     cp_if_changed $TMPH $file

  7067. }

  7068. 

  7069. print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST

  7070. print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST

  7071. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7072. print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST

  7073. print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST

  7074. print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST

  7075. print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST

  7076. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7077. 

  7078. # Settings for pkg-config files

  7079. 

  7080. cat > $TMPH <<EOF

  7081. # Automatically generated by configure - do not modify!

  7082. shared=$shared

  7083. build_suffix=$build_suffix

  7084. prefix=$prefix

  7085. libdir=$libdir

  7086. incdir=$incdir

  7087. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7088. source_path=${source_path}

  7089. LIBPREF=${LIBPREF}

  7090. LIBSUF=${LIBSUF}

  7091. extralibs_avutil="$avutil_extralibs"

  7092. extralibs_avcodec="$avcodec_extralibs"

  7093. extralibs_avformat="$avformat_extralibs"

  7094. extralibs_avdevice="$avdevice_extralibs"

  7095. extralibs_avfilter="$avfilter_extralibs"

  7096. extralibs_avresample="$avresample_extralibs"

  7097. extralibs_postproc="$postproc_extralibs"

  7098. extralibs_swscale="$swscale_extralibs"

  7099. extralibs_swresample="$swresample_extralibs"

  7100. EOF

  7101. 

  7102. for lib in $LIBRARY_LIST; do

  7103.     lib_deps="$(eval echo \$${lib}_deps)"

  7104.     echo ${lib}_deps=\"$lib_deps\" >> $TMPH

  7105. done

  7106. 

  7107. cp_if_changed $TMPH ffbuild/config.sh