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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

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

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

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

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

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

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  93.                            not part of the dynamic linker search path

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

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

  96. 

  97. Licensing options:

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

  99.                            and binaries will be under GPL [no]

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

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

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

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

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

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

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

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

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

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

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

  113. 

  114. Program options:

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

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

  119.   --disable-ffserver       disable ffserver build

  120. 

  121. Documentation options:

  122.   --disable-doc            do not build documentation

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

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

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

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

  127. 

  128. Component options:

  129.   --disable-avdevice       disable libavdevice build

  130.   --disable-avcodec        disable libavcodec build

  131.   --disable-avformat       disable libavformat build

  132.   --disable-swresample     disable libswresample build

  133.   --disable-swscale        disable libswscale build

  134.   --disable-postproc       disable libpostproc build

  135.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  141.   --disable-dct            disable DCT code

  142.   --disable-dwt            disable DWT code

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

  144.   --disable-lsp            disable LSP code

  145.   --disable-lzo            disable LZO decoder code

  146.   --disable-mdct           disable MDCT code

  147.   --disable-rdft           disable RDFT code

  148.   --disable-fft            disable FFT code

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

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

  151. 

  152. Individual component options:

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

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

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

  156.   --disable-encoders       disable all encoders

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

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

  159.   --disable-decoders       disable all decoders

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

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

  162.   --disable-hwaccels       disable all hwaccels

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

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

  165.   --disable-muxers         disable all muxers

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

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

  168.   --disable-demuxers       disable all demuxers

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

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

  171.   --disable-parsers        disable all parsers

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

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

  174.   --disable-bsfs           disable all bitstream filters

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

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

  177.   --disable-protocols      disable all protocols

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

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

  180.   --disable-indevs         disable input devices

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

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

  183.   --disable-outdevs        disable output devices

  184.   --disable-devices        disable all devices

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

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

  187.   --disable-filters        disable all filters

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

  189. 

  190. External library support:

  191. 

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

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

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

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

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

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

  198. 

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

  200.   libraries must be explicitly enabled.

  201. 

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

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

  204. 

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

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

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

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

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

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

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

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

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

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

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

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

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

  218.                            if openssl is not used [no]

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

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

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

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

  223.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  230.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  269.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  286.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

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

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

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

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

  295.                            if gnutls is not used [no]

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

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

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

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

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

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

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

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

  304. 

  305.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  324. 

  325. Toolchain options:

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

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

  328.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  379. 

  380. Advanced options (experts only):

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

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

  383.   --disable-symver         disable symbol versioning

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

  385.   --disable-safe-bitstream-reader

  386.                            disable buffer boundary checking in bitreaders

  387.                            (faster, but may crash)

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

  389. 

  390. Optimization options (experts only):

  391.   --disable-asm            disable all assembly optimizations

  392.   --disable-altivec        disable AltiVec optimizations

  393.   --disable-vsx            disable VSX optimizations

  394.   --disable-power8         disable POWER8 optimizations

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

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

  397.   --disable-mmx            disable MMX optimizations

  398.   --disable-mmxext         disable MMXEXT optimizations

  399.   --disable-sse            disable SSE optimizations

  400.   --disable-sse2           disable SSE2 optimizations

  401.   --disable-sse3           disable SSE3 optimizations

  402.   --disable-ssse3          disable SSSE3 optimizations

  403.   --disable-sse4           disable SSE4 optimizations

  404.   --disable-sse42          disable SSE4.2 optimizations

  405.   --disable-avx            disable AVX optimizations

  406.   --disable-xop            disable XOP optimizations

  407.   --disable-fma3           disable FMA3 optimizations

  408.   --disable-fma4           disable FMA4 optimizations

  409.   --disable-avx2           disable AVX2 optimizations

  410.   --disable-aesni          disable AESNI optimizations

  411.   --disable-armv5te        disable armv5te optimizations

  412.   --disable-armv6          disable armv6 optimizations

  413.   --disable-armv6t2        disable armv6t2 optimizations

  414.   --disable-vfp            disable VFP optimizations

  415.   --disable-neon           disable NEON optimizations

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

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

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

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

  420.   --disable-msa            disable MSA optimizations

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

  422.   --disable-mmi            disable Loongson SIMD optimizations

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

  424. 

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

  426.   --disable-debug          disable debugging symbols

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

  428.   --disable-optimizations  disable compiler optimizations

  429.   --enable-extra-warnings  enable more compiler warnings

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

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

  432.                            2 causes a slowdown at runtime.

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

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

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

  436.                            Cannot be combined with --target-exec

  437.   --enable-ftrapv          Trap arithmetic overflows

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

  439.                            \$FATE_SAMPLES at make invocation time.

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

  441.                            used only for debugging purposes)

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

  443.                            should be used only for debugging purposes)

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

  445.   --disable-random

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

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

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

  449.                            (group) and PROB the probability associated with

  450.                            NAME (default 0.5).

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

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

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

  454.   --enable-osfuzz          Enable building fuzzer tool

  455.   --libfuzzer=PATH         path to libfuzzer

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

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

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

  459. 

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

  461. EOF

  462.   exit 0

  463. }

  464. 

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

  466.     ncolors=$(tput colors)

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

  468.         bold_color=$(tput bold)

  469.         warn_color=$(tput setaf 3)

  470.         error_color=$(tput setaf 1)

  471.         reset_color=$(tput sgr0)

  472.     fi

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

  474.     ncols=$(tput cols)

  475. fi

  476. : ${ncols:=72}

  477. 

  478. log(){

  479.     echo "$@" >> $logfile

  480. }

  481. 

  482. log_file(){

  483.     log BEGIN $1

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

  485.     log END $1

  486. }

  487. 

  488. warn(){

  489.     log "WARNING: $*"

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

  491. }

  492. 

  493. die(){

  494.     log "$@"

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

  496.     cat <<EOF

  497. 

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

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

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

  501. EOF

  502.     if disabled logging; then

  503.         cat <<EOF

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

  505. include the log this produces with your report.

  506. EOF

  507.     else

  508.         cat <<EOF

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

  510. solve the problem.

  511. EOF

  512.     fi

  513.     exit 1

  514. }

  515. 

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

  517. toupper(){

  518.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  519. }

  520. 

  521. tolower(){

  522.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  523. }

  524. 

  525. c_escape(){

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

  527. }

  528. 

  529. sh_quote(){

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

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

  532.     echo "$v"

  533. }

  534. 

  535. cleanws(){

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

  537. }

  538. 

  539. filter(){

  540.     pat=$1

  541.     shift

  542.     for v; do

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

  544.     done

  545. }

  546. 

  547. filter_out(){

  548.     pat=$1

  549.     shift

  550.     for v; do

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

  552.     done

  553. }

  554. 

  555. map(){

  556.     m=$1

  557.     shift

  558.     for v; do eval $m; done

  559. }

  560. 

  561. add_suffix(){

  562.     suffix=$1

  563.     shift

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

  565. }

  566. 

  567. set_all(){

  568.     value=$1

  569.     shift

  570.     for var in $*; do

  571.         eval $var=$value

  572.     done

  573. }

  574. 

  575. set_weak(){

  576.     value=$1

  577.     shift

  578.     for var; do

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

  580.     done

  581. }

  582. 

  583. sanitize_var_name(){

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

  585. }

  586. 

  587. set_sanitized(){

  588.     var=$1

  589.     shift

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

  591. }

  592. 

  593. get_sanitized(){

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

  595. }

  596. 

  597. pushvar(){

  598.     for pvar in $*; do

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

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

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

  602.     done

  603. }

  604. 

  605. popvar(){

  606.     for pvar in $*; do

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

  608.         test $level = 0 && continue

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

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

  611.         eval ${pvar}_level=$level

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

  613.     done

  614. }

  615. 

  616. request(){

  617.     for var in $*; do

  618.         eval ${var}_requested=yes

  619.         eval $var=

  620.     done

  621. }

  622. 

  623. enable(){

  624.     set_all yes $*

  625. }

  626. 

  627. disable(){

  628.     set_all no $*

  629. }

  630. 

  631. enable_weak(){

  632.     set_weak yes $*

  633. }

  634. 

  635. disable_weak(){

  636.     set_weak no $*

  637. }

  638. 

  639. enable_sanitized(){

  640.     for var; do

  641.         enable $(sanitize_var_name $var)

  642.     done

  643. }

  644. 

  645. disable_sanitized(){

  646.     for var; do

  647.         disable $(sanitize_var_name $var)

  648.     done

  649. }

  650. 

  651. do_enable_deep(){

  652.     for var; do

  653.         enabled $var && continue

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

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

  656.         pushvar var sgs

  657.         enable_deep $sel

  658.         popvar sgs

  659.         enable_deep_weak $sgs

  660.         popvar var

  661.     done

  662. }

  663. 

  664. enable_deep(){

  665.     do_enable_deep $*

  666.     enable $*

  667. }

  668. 

  669. enable_deep_weak(){

  670.     for var; do

  671.         disabled $var && continue

  672.         pushvar var

  673.         do_enable_deep $var

  674.         popvar var

  675.         enable_weak $var

  676.     done

  677. }

  678. 

  679. requested(){

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

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

  682. }

  683. 

  684. enabled(){

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

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

  687. }

  688. 

  689. disabled(){

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

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

  692. }

  693. 

  694. enabled_all(){

  695.     for opt; do

  696.         enabled $opt || return 1

  697.     done

  698. }

  699. 

  700. disabled_all(){

  701.     for opt; do

  702.         disabled $opt || return 1

  703.     done

  704. }

  705. 

  706. enabled_any(){

  707.     for opt; do

  708.         enabled $opt && return 0

  709.     done

  710. }

  711. 

  712. disabled_any(){

  713.     for opt; do

  714.         disabled $opt && return 0

  715.     done

  716.     return 1

  717. }

  718. 

  719. set_default(){

  720.     for opt; do

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

  722.     done

  723. }

  724. 

  725. is_in(){

  726.     value=$1

  727.     shift

  728.     for var in $*; do

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

  730.     done

  731.     return 1

  732. }

  733. 

  734. check_deps(){

  735.     for cfg; do

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

  737.         disabled ${cfg}_checking && continue

  738.         enable ${cfg}_checking

  739. 

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

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

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

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

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

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

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

  747. 

  748.         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

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

  750.         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  751. 

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

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

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

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

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

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

  758. 

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

  760. 

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

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

  763.             is_in $dep $LIBRARY_LIST && continue

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

  765.         done

  766. 

  767.         disable ${cfg}_checking

  768.     done

  769. }

  770. 

  771. print_config(){

  772.     pfx=$1

  773.     files=$2

  774.     shift 2

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

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

  777.         {

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

  779.             v = \$2;

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

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

  782.             for (f in files) {

  783.                 file = files[f];

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

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

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

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

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

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

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

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

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

  793.                     yesno = \$2;

  794.                     c2 = tolower(c);

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

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

  797.                 }

  798.             }

  799.         }"

  800. }

  801. 

  802. print_enabled(){

  803.     suf=$1

  804.     shift

  805.     for v; do

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

  807.     done

  808. }

  809. 

  810. append(){

  811.     var=$1

  812.     shift

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

  814. }

  815. 

  816. prepend(){

  817.     var=$1

  818.     shift

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

  820. }

  821. 

  822. unique(){

  823.     var=$1

  824.     uniq_list=""

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

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

  827.     done

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

  829. }

  830. 

  831. resolve(){

  832.     var=$1

  833.     tmpvar=

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

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

  836.     done

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

  838. }

  839. 

  840. add_cppflags(){

  841.     append CPPFLAGS "$@"

  842. }

  843. 

  844. add_cflags(){

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

  846. }

  847. 

  848. add_cflags_headers(){

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

  850. }

  851. 

  852. add_cxxflags(){

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

  854. }

  855. 

  856. add_asflags(){

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

  858. }

  859. 

  860. add_objcflags(){

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

  862. }

  863. 

  864. add_ldflags(){

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

  866. }

  867. 

  868. add_ldexeflags(){

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

  870. }

  871. 

  872. add_ldsoflags(){

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

  874. }

  875. 

  876. add_stripflags(){

  877.     append ASMSTRIPFLAGS "$@"

  878. }

  879. 

  880. add_extralibs(){

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

  882. }

  883. 

  884. add_host_cppflags(){

  885.     append host_cppflags "$@"

  886. }

  887. 

  888. add_host_cflags(){

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

  890. }

  891. 

  892. add_host_ldflags(){

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

  894. }

  895. 

  896. add_compat(){

  897.     append compat_objs $1

  898.     shift

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

  900. }

  901. 

  902. check_cmd(){

  903.     log "$@"

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

  905. }

  906. 

  907. check_stat(){

  908.     log check_stat "$@"

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

  910. }

  911. 

  912. cc_o(){

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

  914. }

  915. 

  916. cc_e(){

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

  918. }

  919. 

  920. check_cc(){

  921.     log check_cc "$@"

  922.     cat > $TMPC

  923.     log_file $TMPC

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

  925. }

  926. 

  927. check_cxx(){

  928.     log check_cxx "$@"

  929.     cat > $TMPCPP

  930.     log_file $TMPCPP

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

  932. }

  933. 

  934. check_objcc(){

  935.     log check_objcc "$@"

  936.     cat > $TMPM

  937.     log_file $TMPM

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

  939. }

  940. 

  941. check_cpp(){

  942.     log check_cpp "$@"

  943.     cat > $TMPC

  944.     log_file $TMPC

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

  946. }

  947. 

  948. as_o(){

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

  950. }

  951. 

  952. check_as(){

  953.     log check_as "$@"

  954.     cat > $TMPS

  955.     log_file $TMPS

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

  957. }

  958. 

  959. check_inline_asm(){

  960.     log check_inline_asm "$@"

  961.     name="$1"

  962.     code="$2"

  963.     shift 2

  964.     disable $name

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

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

  967. EOF

  968. }

  969. 

  970. check_inline_asm_flags(){

  971.     log check_inline_asm_flags "$@"

  972.     name="$1"

  973.     code="$2"

  974.     flags=''

  975.     shift 2

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

  977.       append flags $1

  978.       shift

  979.     done;

  980.     disable $name

  981.     cat > $TMPC <<EOF

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

  983. EOF

  984.     log_file $TMPC

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

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

  987. }

  988. 

  989. check_insn(){

  990.     log check_insn "$@"

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

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

  993. }

  994. 

  995. check_x86asm(){

  996.     log check_x86asm "$@"

  997.     echo "$1" > $TMPS

  998.     log_file $TMPS

  999.     shift 1

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

  1001. }

  1002. 

  1003. ld_o(){

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

  1005. }

  1006. 

  1007. check_ld(){

  1008.     log check_ld "$@"

  1009.     type=$1

  1010.     shift 1

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

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

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

  1014.     flags=$($ldflags_filter $flags)

  1015.     libs=$($ldflags_filter $libs)

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

  1017. }

  1018. 

  1019. print_include(){

  1020.     hdr=$1

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

  1022.         echo "#include $hdr"    ||

  1023.         echo "#include <$hdr>"

  1024. }

  1025. 

  1026. check_code(){

  1027.     log check_code "$@"

  1028.     check=$1

  1029.     headers=$2

  1030.     code=$3

  1031.     shift 3

  1032.     {

  1033.         for hdr in $headers; do

  1034.             print_include $hdr

  1035.         done

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

  1037.     } | check_$check "$@"

  1038. }

  1039. 

  1040. check_cppflags(){

  1041.     log check_cppflags "$@"

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

  1043. #include <stdlib.h>

  1044. EOF

  1045. }

  1046. 

  1047. test_cflags(){

  1048.     log test_cflags "$@"

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

  1050.     check_cc "$@" <<EOF

  1051. int x;

  1052. EOF

  1053. }

  1054. 

  1055. check_cflags(){

  1056.     log check_cflags "$@"

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

  1058. }

  1059. 

  1060. check_cxxflags(){

  1061.     log check_cxxflags "$@"

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

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

  1064. int x;

  1065. EOF

  1066. }

  1067. 

  1068. test_objcflags(){

  1069.     log test_objcflags "$@"

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

  1071.     check_objcc "$@" <<EOF

  1072. int x;

  1073. EOF

  1074. }

  1075. 

  1076. check_objcflags(){

  1077.     log check_objcflags "$@"

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

  1079. }

  1080. 

  1081. test_ldflags(){

  1082.     log test_ldflags "$@"

  1083.     set -- $($ldflags_filter "$@")

  1084.     check_ld "cc" "$@" <<EOF

  1085. int main(void){ return 0; }

  1086. EOF

  1087. }

  1088. 

  1089. check_ldflags(){

  1090.     log check_ldflags "$@"

  1091.     test_ldflags "$@" && add_ldflags "$@"

  1092. }

  1093. 

  1094. test_stripflags(){

  1095.     log test_stripflags "$@"

  1096.     # call check_cc to get a fresh TMPO

  1097.     check_cc <<EOF

  1098. int main(void) { return 0; }

  1099. EOF

  1100.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1101. }

  1102. 

  1103. check_stripflags(){

  1104.     log check_stripflags "$@"

  1105.     test_stripflags "$@" && add_stripflags "$@"

  1106. }

  1107. 

  1108. check_header(){

  1109.     log check_header "$@"

  1110.     headers=$1

  1111.     shift

  1112.     disable_sanitized $headers

  1113.     {

  1114.         for hdr in $headers; do

  1115.             print_include $hdr

  1116.         done

  1117.         echo "int x;"

  1118.     } | check_cpp "$@" && enable_sanitized $headers

  1119. }

  1120. 

  1121. check_header_objcc(){

  1122.     log check_header_objcc "$@"

  1123.     rm -f -- "$TMPO"

  1124.     header=$1

  1125.     shift

  1126.     disable_sanitized $header

  1127.     {

  1128.        echo "#include <$header>"

  1129.        echo "int main(void) { return 0; }"

  1130.     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header

  1131. }

  1132. 

  1133. check_apple_framework(){

  1134.     log check_apple_framework "$@"

  1135.     framework="$1"

  1136.     name="$(tolower $framework)"

  1137.     header="${framework}/${framework}.h"

  1138.     disable $name

  1139.     check_header_objcc $header &&

  1140.         enable $name && eval ${name}_extralibs='"-framework $framework"'

  1141. }

  1142. 

  1143. check_func(){

  1144.     log check_func "$@"

  1145.     func=$1

  1146.     shift

  1147.     disable $func

  1148.     check_ld "cc" "$@" <<EOF && enable $func

  1149. extern int $func();

  1150. int main(void){ $func(); }

  1151. EOF

  1152. }

  1153. 

  1154. check_complexfunc(){

  1155.     log check_complexfunc "$@"

  1156.     func=$1

  1157.     narg=$2

  1158.     shift 2

  1159.     test $narg = 2 && args="f, g" || args="f * I"

  1160.     disable $func

  1161.     check_ld "cc" "$@" <<EOF && enable $func

  1162. #include <complex.h>

  1163. #include <math.h>

  1164. float foo(complex float f, complex float g) { return $func($args); }

  1165. int main(void){ return (int) foo; }

  1166. EOF

  1167. }

  1168. 

  1169. check_mathfunc(){

  1170.     log check_mathfunc "$@"

  1171.     func=$1

  1172.     narg=$2

  1173.     shift 2

  1174.     test $narg = 2 && args="f, g" || args="f"

  1175.     disable $func

  1176.     check_ld "cc" "$@" <<EOF && enable $func

  1177. #include <math.h>

  1178. float foo(float f, float g) { return $func($args); }

  1179. int main(void){ return (int) foo; }

  1180. EOF

  1181. }

  1182. 

  1183. check_func_headers(){

  1184.     log check_func_headers "$@"

  1185.     headers=$1

  1186.     funcs=$2

  1187.     shift 2

  1188.     {

  1189.         for hdr in $headers; do

  1190.             print_include $hdr

  1191.         done

  1192.         echo "#include <stdint.h>"

  1193.         for func in $funcs; do

  1194.             echo "long check_$func(void) { return (long) $func; }"

  1195.         done

  1196.         echo "int main(void) { int ret = 0;"

  1197.         # LTO could optimize out the test functions without this

  1198.         for func in $funcs; do

  1199.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1200.         done

  1201.         echo "return ret; }"

  1202.     } | check_ld "cc" "$@" && enable $funcs && enable_sanitized $headers

  1203. }

  1204. 

  1205. check_class_headers_cpp(){

  1206.     log check_class_headers_cpp "$@"

  1207.     headers=$1

  1208.     classes=$2

  1209.     shift 2

  1210.     {

  1211.         for hdr in $headers; do

  1212.             echo "#include <$hdr>"

  1213.         done

  1214.         echo "int main(void) { "

  1215.         i=1

  1216.         for class in $classes; do

  1217.             echo "$class obj$i;"

  1218.             i=$(expr $i + 1)

  1219.         done

  1220.         echo "return 0; }"

  1221.     } | check_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers

  1222. }

  1223. 

  1224. check_cpp_condition(){

  1225.     log check_cpp_condition "$@"

  1226.     header=$1

  1227.     condition=$2

  1228.     shift 2

  1229.     check_cpp "$@" <<EOF

  1230. #include <$header>

  1231. #if !($condition)

  1232. #error "unsatisfied condition: $condition"

  1233. #endif

  1234. EOF

  1235. }

  1236. 

  1237. test_cflags_cc(){

  1238.     log test_cflags_cc "$@"

  1239.     flags=$1

  1240.     header=$2

  1241.     condition=$3

  1242.     shift 3

  1243.     set -- $($cflags_filter "$flags")

  1244.     check_cc "$@" <<EOF

  1245. #include <$header>

  1246. #if !($condition)

  1247. #error "unsatisfied condition: $condition"

  1248. #endif

  1249. EOF

  1250. }

  1251. 

  1252. check_lib(){

  1253.     log check_lib "$@"

  1254.     name="$1"

  1255.     headers="$2"

  1256.     funcs="$3"

  1257.     shift 3

  1258.     disable $name

  1259.     check_func_headers "$headers" "$funcs" "$@" &&

  1260.         enable $name && eval ${name}_extralibs="\$@"

  1261. }

  1262. 

  1263. check_lib_cpp(){

  1264.     log check_lib_cpp "$@"

  1265.     name="$1"

  1266.     headers="$2"

  1267.     classes="$3"

  1268.     shift 3

  1269.     disable $name

  1270.     check_class_headers_cpp "$headers" "$classes" "$@" &&

  1271.         enable $name && eval ${name}_extralibs="\$@"

  1272. }

  1273. 

  1274. test_pkg_config(){

  1275.     log test_pkg_config "$@"

  1276.     name="$1"

  1277.     pkg_version="$2"

  1278.     pkg="${2%% *}"

  1279.     headers="$3"

  1280.     funcs="$4"

  1281.     shift 4

  1282.     disable $name

  1283.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1284.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1285.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

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

  1287.         enable $name &&

  1288.         set_sanitized "${name}_cflags"    $pkg_cflags &&

  1289.         set_sanitized "${name}_extralibs" $pkg_libs

  1290. }

  1291. 

  1292. check_pkg_config(){

  1293.     log check_pkg_config "$@"

  1294.     name="$1"

  1295.     test_pkg_config "$@" &&

  1296.         eval add_cflags \$${name}_cflags

  1297. }

  1298. 

  1299. check_exec(){

  1300.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1301. }

  1302. 

  1303. check_exec_crash(){

  1304.     log check_exec_crash "$@"

  1305.     code=$(cat)

  1306. 

  1307.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1308.     # are safe but may not be available everywhere.  Thus we use

  1309.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1310.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1311.     # is not defined by standard C so it is used conditionally.

  1312. 

  1313.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1314. #include <signal.h>

  1315. static void sighandler(int sig){

  1316.     raise(SIGTERM);

  1317. }

  1318. int foo(void){

  1319.     $code

  1320. }

  1321. int (*func_ptr)(void) = foo;

  1322. int main(void){

  1323.     signal(SIGILL, sighandler);

  1324.     signal(SIGFPE, sighandler);

  1325.     signal(SIGSEGV, sighandler);

  1326. #ifdef SIGBUS

  1327.     signal(SIGBUS, sighandler);

  1328. #endif

  1329.     return func_ptr();

  1330. }

  1331. EOF

  1332. }

  1333. 

  1334. check_type(){

  1335.     log check_type "$@"

  1336.     headers=$1

  1337.     type=$2

  1338.     shift 2

  1339.     disable_sanitized "$type"

  1340.     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"

  1341. }

  1342. 

  1343. check_struct(){

  1344.     log check_struct "$@"

  1345.     headers=$1

  1346.     struct=$2

  1347.     member=$3

  1348.     shift 3

  1349.     disable_sanitized "${struct}_${member}"

  1350.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1351.         enable_sanitized "${struct}_${member}"

  1352. }

  1353. 

  1354. check_builtin(){

  1355.     log check_builtin "$@"

  1356.     name=$1

  1357.     headers=$2

  1358.     builtin=$3

  1359.     shift 3

  1360.     disable "$name"

  1361.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1362. }

  1363. 

  1364. check_compile_assert(){

  1365.     log check_compile_assert "$@"

  1366.     name=$1

  1367.     headers=$2

  1368.     condition=$3

  1369.     shift 3

  1370.     disable "$name"

  1371.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1372. }

  1373. 

  1374. require(){

  1375.     log require "$@"

  1376.     name_version="$1"

  1377.     name="${1%% *}"

  1378.     headers="$2"

  1379.     func="$3"

  1380.     shift 3

  1381.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1382. }

  1383. 

  1384. require_cpp(){

  1385.     name="$1"

  1386.     headers="$2"

  1387.     classes="$3"

  1388.     shift 3

  1389.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1390. }

  1391. 

  1392. require_header(){

  1393.     log require_header "$@"

  1394.     headers="$1"

  1395.     shift

  1396.     check_header "$headers" "$@" || die "ERROR: $headers not found"

  1397. }

  1398. 

  1399. require_cpp_condition(){

  1400.     log require_cpp_condition "$@"

  1401.     header="$1"

  1402.     condition="$2"

  1403.     shift 2

  1404.     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"

  1405. }

  1406. 

  1407. require_pkg_config(){

  1408.     log require_pkg_config "$@"

  1409.     pkg_version="$2"

  1410.     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"

  1411. }

  1412. 

  1413. hostcc_e(){

  1414.     eval printf '%s\\n' $HOSTCC_E

  1415. }

  1416. 

  1417. hostcc_o(){

  1418.     eval printf '%s\\n' $HOSTCC_O

  1419. }

  1420. 

  1421. check_host_cc(){

  1422.     log check_host_cc "$@"

  1423.     cat > $TMPC

  1424.     log_file $TMPC

  1425.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1426. }

  1427. 

  1428. check_host_cpp(){

  1429.     log check_host_cpp "$@"

  1430.     cat > $TMPC

  1431.     log_file $TMPC

  1432.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1433. }

  1434. 

  1435. check_host_cppflags(){

  1436.     log check_host_cppflags "$@"

  1437.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1438. #include <stdlib.h>

  1439. EOF

  1440. }

  1441. 

  1442. check_host_cflags(){

  1443.     log check_host_cflags "$@"

  1444.     set -- $($host_cflags_filter "$@")

  1445.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1446. int x;

  1447. EOF

  1448. }

  1449. 

  1450. check_host_cpp_condition(){

  1451.     log check_host_cpp_condition "$@"

  1452.     header=$1

  1453.     condition=$2

  1454.     shift 2

  1455.     check_host_cpp "$@" <<EOF

  1456. #include <$header>

  1457. #if !($condition)

  1458. #error "unsatisfied condition: $condition"

  1459. #endif

  1460. EOF

  1461. }

  1462. 

  1463. cp_if_changed(){

  1464.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1465.     mkdir -p "$(dirname $2)"

  1466.     cp -f "$1" "$2"

  1467. }

  1468. 

  1469. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1470. # system-dependent things.

  1471. 

  1472. AVCODEC_COMPONENTS="

  1473.     bsfs

  1474.     decoders

  1475.     encoders

  1476.     hwaccels

  1477.     parsers

  1478. "

  1479. 

  1480. AVDEVICE_COMPONENTS="

  1481.     indevs

  1482.     outdevs

  1483. "

  1484. 

  1485. AVFILTER_COMPONENTS="

  1486.     filters

  1487. "

  1488. 

  1489. AVFORMAT_COMPONENTS="

  1490.     demuxers

  1491.     muxers

  1492.     protocols

  1493. "

  1494. 

  1495. COMPONENT_LIST="

  1496.     $AVCODEC_COMPONENTS

  1497.     $AVDEVICE_COMPONENTS

  1498.     $AVFILTER_COMPONENTS

  1499.     $AVFORMAT_COMPONENTS

  1500. "

  1501. 

  1502. EXAMPLE_LIST="

  1503.     avio_dir_cmd_example

  1504.     avio_reading_example

  1505.     decode_audio_example

  1506.     decode_video_example

  1507.     demuxing_decoding_example

  1508.     encode_audio_example

  1509.     encode_video_example

  1510.     extract_mvs_example

  1511.     filter_audio_example

  1512.     filtering_audio_example

  1513.     filtering_video_example

  1514.     http_multiclient_example

  1515.     hw_decode_example

  1516.     metadata_example

  1517.     muxing_example

  1518.     qsvdec_example

  1519.     remuxing_example

  1520.     resampling_audio_example

  1521.     scaling_video_example

  1522.     transcode_aac_example

  1523.     transcoding_example

  1524. "

  1525. 

  1526. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1527.     alsa

  1528.     appkit

  1529.     avfoundation

  1530.     bzlib

  1531.     coreimage

  1532.     iconv

  1533.     libxcb

  1534.     libxcb_shm

  1535.     libxcb_shape

  1536.     libxcb_xfixes

  1537.     lzma

  1538.     schannel

  1539.     sdl2

  1540.     securetransport

  1541.     sndio

  1542.     xlib

  1543.     zlib

  1544. "

  1545. 

  1546. EXTERNAL_LIBRARY_GPL_LIST="

  1547.     avisynth

  1548.     frei0r

  1549.     libcdio

  1550.     librubberband

  1551.     libvidstab

  1552.     libx264

  1553.     libx265

  1554.     libxavs

  1555.     libxvid

  1556. "

  1557. 

  1558. EXTERNAL_LIBRARY_NONFREE_LIST="

  1559.     decklink

  1560.     libndi_newtek

  1561.     libfdk_aac

  1562.     openssl

  1563. "

  1564. 

  1565. EXTERNAL_LIBRARY_VERSION3_LIST="

  1566.     gmp

  1567.     libopencore_amrnb

  1568.     libopencore_amrwb

  1569.     libvmaf

  1570.     libvo_amrwbenc

  1571.     rkmpp

  1572. "

  1573. 

  1574. EXTERNAL_LIBRARY_GPLV3_LIST="

  1575.     libsmbclient

  1576. "

  1577. 

  1578. EXTERNAL_LIBRARY_LIST="

  1579.     $EXTERNAL_LIBRARY_GPL_LIST

  1580.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1581.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1582.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1583.     chromaprint

  1584.     gcrypt

  1585.     gnutls

  1586.     jni

  1587.     ladspa

  1588.     libass

  1589.     libbluray

  1590.     libbs2b

  1591.     libcaca

  1592.     libcelt

  1593.     libdc1394

  1594.     libdrm

  1595.     libflite

  1596.     libfontconfig

  1597.     libfreetype

  1598.     libfribidi

  1599.     libgme

  1600.     libgsm

  1601.     libiec61883

  1602.     libilbc

  1603.     libjack

  1604.     libkvazaar

  1605.     libmodplug

  1606.     libmp3lame

  1607.     libmysofa

  1608.     libopencv

  1609.     libopenh264

  1610.     libopenjpeg

  1611.     libopenmpt

  1612.     libopus

  1613.     libpulse

  1614.     librsvg

  1615.     librtmp

  1616.     libshine

  1617.     libsmbclient

  1618.     libsnappy

  1619.     libsoxr

  1620.     libspeex

  1621.     libssh

  1622.     libtesseract

  1623.     libtheora

  1624.     libtwolame

  1625.     libv4l2

  1626.     libvorbis

  1627.     libvpx

  1628.     libwavpack

  1629.     libwebp

  1630.     libxml2

  1631.     libzimg

  1632.     libzmq

  1633.     libzvbi

  1634.     mediacodec

  1635.     openal

  1636.     opengl

  1637. "

  1638. 

  1639. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1640.     audiotoolbox

  1641.     crystalhd

  1642.     cuda

  1643.     cuvid

  1644.     d3d11va

  1645.     dxva2

  1646.     nvdec

  1647.     nvenc

  1648.     vaapi

  1649.     vdpau

  1650.     videotoolbox

  1651.     v4l2_m2m

  1652.     xvmc

  1653. "

  1654. 

  1655. # catchall list of things that require external libs to link

  1656. EXTRALIBS_LIST="

  1657.     cpu_init

  1658.     cws2fws

  1659. "

  1660. 

  1661. HWACCEL_LIBRARY_NONFREE_LIST="

  1662.     cuda_sdk

  1663.     libnpp

  1664. "

  1665. 

  1666. HWACCEL_LIBRARY_LIST="

  1667.     $HWACCEL_LIBRARY_NONFREE_LIST

  1668.     libmfx

  1669.     mmal

  1670.     omx

  1671.     opencl

  1672. "

  1673. 

  1674. DOCUMENT_LIST="

  1675.     doc

  1676.     htmlpages

  1677.     manpages

  1678.     podpages

  1679.     txtpages

  1680. "

  1681. 

  1682. FEATURE_LIST="

  1683.     ftrapv

  1684.     gray

  1685.     hardcoded_tables

  1686.     omx_rpi

  1687.     runtime_cpudetect

  1688.     safe_bitstream_reader

  1689.     shared

  1690.     small

  1691.     static

  1692.     swscale_alpha

  1693. "

  1694. 

  1695. LIBRARY_LIST="

  1696.     avcodec

  1697.     avdevice

  1698.     avfilter

  1699.     avformat

  1700.     avresample

  1701.     avutil

  1702.     postproc

  1703.     swresample

  1704.     swscale

  1705. "

  1706. 

  1707. LICENSE_LIST="

  1708.     gpl

  1709.     nonfree

  1710.     version3

  1711. "

  1712. 

  1713. PROGRAM_LIST="

  1714.     ffplay

  1715.     ffprobe

  1716.     ffserver

  1717.     ffmpeg

  1718. "

  1719. 

  1720. SUBSYSTEM_LIST="

  1721.     dct

  1722.     dwt

  1723.     error_resilience

  1724.     faan

  1725.     fast_unaligned

  1726.     fft

  1727.     lsp

  1728.     lzo

  1729.     mdct

  1730.     pixelutils

  1731.     network

  1732.     rdft

  1733. "

  1734. 

  1735. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1736. CONFIG_LIST="

  1737.     $DOCUMENT_LIST

  1738.     $EXAMPLE_LIST

  1739.     $EXTERNAL_LIBRARY_LIST

  1740.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1741.     $HWACCEL_LIBRARY_LIST

  1742.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1743.     $FEATURE_LIST

  1744.     $LICENSE_LIST

  1745.     $LIBRARY_LIST

  1746.     $PROGRAM_LIST

  1747.     $SUBSYSTEM_LIST

  1748.     autodetect

  1749.     fontconfig

  1750.     linux_perf

  1751.     memory_poisoning

  1752.     neon_clobber_test

  1753.     ossfuzz

  1754.     pic

  1755.     thumb

  1756.     valgrind_backtrace

  1757.     xmm_clobber_test

  1758.     $COMPONENT_LIST

  1759. "

  1760. 

  1761. THREADS_LIST="

  1762.     pthreads

  1763.     os2threads

  1764.     w32threads

  1765. "

  1766. 

  1767. ATOMICS_LIST="

  1768.     atomics_gcc

  1769.     atomics_suncc

  1770.     atomics_win32

  1771. "

  1772. 

  1773. AUTODETECT_LIBS="

  1774.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1775.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1776.     $THREADS_LIST

  1777. "

  1778. 

  1779. ARCH_LIST="

  1780.     aarch64

  1781.     alpha

  1782.     arm

  1783.     avr32

  1784.     avr32_ap

  1785.     avr32_uc

  1786.     bfin

  1787.     ia64

  1788.     m68k

  1789.     mips

  1790.     mips64

  1791.     parisc

  1792.     ppc

  1793.     ppc64

  1794.     s390

  1795.     sh4

  1796.     sparc

  1797.     sparc64

  1798.     tilegx

  1799.     tilepro

  1800.     tomi

  1801.     x86

  1802.     x86_32

  1803.     x86_64

  1804. "

  1805. 

  1806. ARCH_EXT_LIST_ARM="

  1807.     armv5te

  1808.     armv6

  1809.     armv6t2

  1810.     armv8

  1811.     neon

  1812.     vfp

  1813.     vfpv3

  1814.     setend

  1815. "

  1816. 

  1817. ARCH_EXT_LIST_MIPS="

  1818.     mipsfpu

  1819.     mips32r2

  1820.     mips32r5

  1821.     mips64r2

  1822.     mips32r6

  1823.     mips64r6

  1824.     mipsdsp

  1825.     mipsdspr2

  1826.     msa

  1827. "

  1828. 

  1829. ARCH_EXT_LIST_LOONGSON="

  1830.     loongson2

  1831.     loongson3

  1832.     mmi

  1833. "

  1834. 

  1835. ARCH_EXT_LIST_X86_SIMD="

  1836.     aesni

  1837.     amd3dnow

  1838.     amd3dnowext

  1839.     avx

  1840.     avx2

  1841.     fma3

  1842.     fma4

  1843.     mmx

  1844.     mmxext

  1845.     sse

  1846.     sse2

  1847.     sse3

  1848.     sse4

  1849.     sse42

  1850.     ssse3

  1851.     xop

  1852. "

  1853. 

  1854. ARCH_EXT_LIST_PPC="

  1855.     altivec

  1856.     dcbzl

  1857.     ldbrx

  1858.     power8

  1859.     ppc4xx

  1860.     vsx

  1861. "

  1862. 

  1863. ARCH_EXT_LIST_X86="

  1864.     $ARCH_EXT_LIST_X86_SIMD

  1865.     cpunop

  1866.     i686

  1867. "

  1868. 

  1869. ARCH_EXT_LIST="

  1870.     $ARCH_EXT_LIST_ARM

  1871.     $ARCH_EXT_LIST_PPC

  1872.     $ARCH_EXT_LIST_X86

  1873.     $ARCH_EXT_LIST_MIPS

  1874.     $ARCH_EXT_LIST_LOONGSON

  1875. "

  1876. 

  1877. ARCH_FEATURES="

  1878.     aligned_stack

  1879.     fast_64bit

  1880.     fast_clz

  1881.     fast_cmov

  1882.     local_aligned

  1883.     simd_align_16

  1884.     simd_align_32

  1885. "

  1886. 

  1887. BUILTIN_LIST="

  1888.     atomic_cas_ptr

  1889.     machine_rw_barrier

  1890.     MemoryBarrier

  1891.     mm_empty

  1892.     rdtsc

  1893.     sarestart

  1894.     sem_timedwait

  1895.     sync_val_compare_and_swap

  1896. "

  1897. HAVE_LIST_CMDLINE="

  1898.     inline_asm

  1899.     symver

  1900.     x86asm

  1901. "

  1902. 

  1903. HAVE_LIST_PUB="

  1904.     bigendian

  1905.     fast_unaligned

  1906. "

  1907. 

  1908. HEADERS_LIST="

  1909.     arpa_inet_h

  1910.     asm_types_h

  1911.     cdio_paranoia_h

  1912.     cdio_paranoia_paranoia_h

  1913.     cuda_h

  1914.     dispatch_dispatch_h

  1915.     dev_bktr_ioctl_bt848_h

  1916.     dev_bktr_ioctl_meteor_h

  1917.     dev_ic_bt8xx_h

  1918.     dev_video_bktr_ioctl_bt848_h

  1919.     dev_video_meteor_ioctl_meteor_h

  1920.     direct_h

  1921.     dirent_h

  1922.     dxgidebug_h

  1923.     dxva_h

  1924.     ES2_gl_h

  1925.     gsm_h

  1926.     io_h

  1927.     machine_ioctl_bt848_h

  1928.     machine_ioctl_meteor_h

  1929.     malloc_h

  1930.     opencv2_core_core_c_h

  1931.     OpenGL_gl3_h

  1932.     poll_h

  1933.     sys_param_h

  1934.     sys_resource_h

  1935.     sys_select_h

  1936.     sys_soundcard_h

  1937.     sys_time_h

  1938.     sys_un_h

  1939.     sys_videoio_h

  1940.     termios_h

  1941.     udplite_h

  1942.     unistd_h

  1943.     valgrind_valgrind_h

  1944.     windows_h

  1945.     winsock2_h

  1946. "

  1947. 

  1948. INTRINSICS_LIST="

  1949.     intrinsics_neon

  1950. "

  1951. 

  1952. COMPLEX_FUNCS="

  1953.     cabs

  1954.     cexp

  1955. "

  1956. 

  1957. MATH_FUNCS="

  1958.     atanf

  1959.     atan2f

  1960.     cbrt

  1961.     cbrtf

  1962.     copysign

  1963.     cosf

  1964.     erf

  1965.     exp2

  1966.     exp2f

  1967.     expf

  1968.     hypot

  1969.     isfinite

  1970.     isinf

  1971.     isnan

  1972.     ldexpf

  1973.     llrint

  1974.     llrintf

  1975.     log2

  1976.     log2f

  1977.     log10f

  1978.     lrint

  1979.     lrintf

  1980.     powf

  1981.     rint

  1982.     round

  1983.     roundf

  1984.     sinf

  1985.     trunc

  1986.     truncf

  1987. "

  1988. 

  1989. SYSTEM_FEATURES="

  1990.     atomics_native

  1991.     dos_paths

  1992.     libc_msvcrt

  1993.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  1994.     section_data_rel_ro

  1995.     threads

  1996.     uwp

  1997.     winrt

  1998. "

  1999. 

  2000. SYSTEM_FUNCS="

  2001.     access

  2002.     aligned_malloc

  2003.     arc4random

  2004.     clock_gettime

  2005.     closesocket

  2006.     CommandLineToArgvW

  2007.     fcntl

  2008.     getaddrinfo

  2009.     gethrtime

  2010.     getopt

  2011.     GetProcessAffinityMask

  2012.     GetProcessMemoryInfo

  2013.     GetProcessTimes

  2014.     getrusage

  2015.     GetSystemTimeAsFileTime

  2016.     gettimeofday

  2017.     glob

  2018.     glXGetProcAddress

  2019.     gmtime_r

  2020.     inet_aton

  2021.     isatty

  2022.     kbhit

  2023.     localtime_r

  2024.     lstat

  2025.     lzo1x_999_compress

  2026.     mach_absolute_time

  2027.     MapViewOfFile

  2028.     memalign

  2029.     mkstemp

  2030.     mmap

  2031.     mprotect

  2032.     nanosleep

  2033.     PeekNamedPipe

  2034.     posix_memalign

  2035.     pthread_cancel

  2036.     sched_getaffinity

  2037.     SecItemImport

  2038.     SetConsoleTextAttribute

  2039.     SetConsoleCtrlHandler

  2040.     setmode

  2041.     setrlimit

  2042.     Sleep

  2043.     strerror_r

  2044.     sysconf

  2045.     sysctl

  2046.     usleep

  2047.     UTGetOSTypeFromString

  2048.     VirtualAlloc

  2049.     wglGetProcAddress

  2050. "

  2051. 

  2052. SYSTEM_LIBRARIES="

  2053.     vaapi_drm

  2054.     vaapi_x11

  2055.     vdpau_x11

  2056.     wincrypt

  2057. "

  2058. 

  2059. TOOLCHAIN_FEATURES="

  2060.     as_arch_directive

  2061.     as_fpu_directive

  2062.     as_func

  2063.     as_object_arch

  2064.     asm_mod_q

  2065.     blocks_extension

  2066.     ebp_available

  2067.     ebx_available

  2068.     gnu_as

  2069.     gnu_windres

  2070.     ibm_asm

  2071.     inline_asm_direct_symbol_refs

  2072.     inline_asm_labels

  2073.     inline_asm_nonlocal_labels

  2074.     pragma_deprecated

  2075.     rsync_contimeout

  2076.     symver_asm_label

  2077.     symver_gnu_asm

  2078.     vfp_args

  2079.     xform_asm

  2080.     xmm_clobbers

  2081. "

  2082. 

  2083. TYPES_LIST="

  2084.     CONDITION_VARIABLE_Ptr

  2085.     kCMVideoCodecType_HEVC

  2086.     socklen_t

  2087.     struct_addrinfo

  2088.     struct_group_source_req

  2089.     struct_ip_mreq_source

  2090.     struct_ipv6_mreq

  2091.     struct_msghdr_msg_flags

  2092.     struct_pollfd

  2093.     struct_rusage_ru_maxrss

  2094.     struct_sctp_event_subscribe

  2095.     struct_sockaddr_in6

  2096.     struct_sockaddr_sa_len

  2097.     struct_sockaddr_storage

  2098.     struct_stat_st_mtim_tv_nsec

  2099.     struct_v4l2_frmivalenum_discrete

  2100. "

  2101. 

  2102. HAVE_LIST="

  2103.     $ARCH_EXT_LIST

  2104.     $(add_suffix _external $ARCH_EXT_LIST)

  2105.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2106.     $ARCH_FEATURES

  2107.     $ATOMICS_LIST

  2108.     $BUILTIN_LIST

  2109.     $COMPLEX_FUNCS

  2110.     $HAVE_LIST_CMDLINE

  2111.     $HAVE_LIST_PUB

  2112.     $HEADERS_LIST

  2113.     $INTRINSICS_LIST

  2114.     $MATH_FUNCS

  2115.     $SYSTEM_FEATURES

  2116.     $SYSTEM_FUNCS

  2117.     $SYSTEM_LIBRARIES

  2118.     $THREADS_LIST

  2119.     $TOOLCHAIN_FEATURES

  2120.     $TYPES_LIST

  2121.     makeinfo

  2122.     makeinfo_html

  2123.     opencl_d3d11

  2124.     opencl_drm_arm

  2125.     opencl_dxva2

  2126.     opencl_vaapi_beignet

  2127.     opencl_vaapi_intel_media

  2128.     perl

  2129.     pod2man

  2130.     texi2html

  2131. "

  2132. 

  2133. # options emitted with CONFIG_ prefix but not available on the command line

  2134. CONFIG_EXTRA="

  2135.     aandcttables

  2136.     ac3dsp

  2137.     adts_header

  2138.     audio_frame_queue

  2139.     audiodsp

  2140.     blockdsp

  2141.     bswapdsp

  2142.     cabac

  2143.     cbs

  2144.     cbs_h264

  2145.     cbs_h265

  2146.     cbs_mpeg2

  2147.     dirac_parse

  2148.     dvprofile

  2149.     exif

  2150.     faandct

  2151.     faanidct

  2152.     fdctdsp

  2153.     flacdsp

  2154.     fmtconvert

  2155.     frame_thread_encoder

  2156.     g722dsp

  2157.     golomb

  2158.     gplv3

  2159.     h263dsp

  2160.     h264chroma

  2161.     h264dsp

  2162.     h264parse

  2163.     h264pred

  2164.     h264qpel

  2165.     hevcparse

  2166.     hpeldsp

  2167.     huffman

  2168.     huffyuvdsp

  2169.     huffyuvencdsp

  2170.     idctdsp

  2171.     iirfilter

  2172.     mdct15

  2173.     intrax8

  2174.     iso_media

  2175.     ividsp

  2176.     jpegtables

  2177.     lgplv3

  2178.     libx262

  2179.     llauddsp

  2180.     llviddsp

  2181.     llvidencdsp

  2182.     lpc

  2183.     lzf

  2184.     me_cmp

  2185.     mpeg_er

  2186.     mpegaudio

  2187.     mpegaudiodsp

  2188.     mpegaudioheader

  2189.     mpegvideo

  2190.     mpegvideoenc

  2191.     mss34dsp

  2192.     pixblockdsp

  2193.     qpeldsp

  2194.     qsv

  2195.     qsvdec

  2196.     qsvenc

  2197.     qsvvpp

  2198.     rangecoder

  2199.     riffdec

  2200.     riffenc

  2201.     rtpdec

  2202.     rtpenc_chain

  2203.     rv34dsp

  2204.     sinewin

  2205.     snappy

  2206.     srtp

  2207.     startcode

  2208.     texturedsp

  2209.     texturedspenc

  2210.     tpeldsp

  2211.     vaapi_1

  2212.     vaapi_encode

  2213.     vc1dsp

  2214.     videodsp

  2215.     vp3dsp

  2216.     vp56dsp

  2217.     vp8dsp

  2218.     wma_freqs

  2219.     wmv2dsp

  2220. "

  2221. 

  2222. CMDLINE_SELECT="

  2223.     $ARCH_EXT_LIST

  2224.     $CONFIG_LIST

  2225.     $HAVE_LIST_CMDLINE

  2226.     $THREADS_LIST

  2227.     asm

  2228.     cross_compile

  2229.     debug

  2230.     extra_warnings

  2231.     logging

  2232.     lto

  2233.     optimizations

  2234.     rpath

  2235.     stripping

  2236. "

  2237. 

  2238. PATHS_LIST="

  2239.     bindir

  2240.     datadir

  2241.     docdir

  2242.     incdir

  2243.     libdir

  2244.     mandir

  2245.     pkgconfigdir

  2246.     prefix

  2247.     shlibdir

  2248.     install_name_dir

  2249. "

  2250. 

  2251. CMDLINE_SET="

  2252.     $PATHS_LIST

  2253.     ar

  2254.     arch

  2255.     as

  2256.     assert_level

  2257.     build_suffix

  2258.     cc

  2259.     objcc

  2260.     cpu

  2261.     cross_prefix

  2262.     custom_allocator

  2263.     cxx

  2264.     dep_cc

  2265.     doxygen

  2266.     env

  2267.     extra_version

  2268.     gas

  2269.     host_cc

  2270.     host_cflags

  2271.     host_extralibs

  2272.     host_ld

  2273.     host_ldflags

  2274.     host_os

  2275.     ignore_tests

  2276.     install

  2277.     ld

  2278.     ln_s

  2279.     logfile

  2280.     malloc_prefix

  2281.     nm

  2282.     optflags

  2283.     nvccflags

  2284.     pkg_config

  2285.     pkg_config_flags

  2286.     progs_suffix

  2287.     random_seed

  2288.     ranlib

  2289.     samples

  2290.     strip

  2291.     sws_max_filter_size

  2292.     sysinclude

  2293.     sysroot

  2294.     target_exec

  2295.     target_os

  2296.     target_path

  2297.     target_samples

  2298.     tempprefix

  2299.     toolchain

  2300.     valgrind

  2301.     x86asmexe

  2302. "

  2303. 

  2304. CMDLINE_APPEND="

  2305.     extra_cflags

  2306.     extra_cxxflags

  2307.     extra_objcflags

  2308.     host_cppflags

  2309. "

  2310. 

  2311. # code dependency declarations

  2312. 

  2313. # architecture extensions

  2314. 

  2315. armv5te_deps="arm"

  2316. armv6_deps="arm"

  2317. armv6t2_deps="arm"

  2318. armv8_deps="aarch64"

  2319. neon_deps_any="aarch64 arm"

  2320. intrinsics_neon_deps="neon"

  2321. vfp_deps_any="aarch64 arm"

  2322. vfpv3_deps="vfp"

  2323. setend_deps="arm"

  2324. 

  2325. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2326. 

  2327. altivec_deps="ppc"

  2328. dcbzl_deps="ppc"

  2329. ldbrx_deps="ppc"

  2330. ppc4xx_deps="ppc"

  2331. vsx_deps="altivec"

  2332. power8_deps="vsx"

  2333. 

  2334. loongson2_deps="mips"

  2335. loongson3_deps="mips"

  2336. mips32r2_deps="mips"

  2337. mips32r5_deps="mips"

  2338. mips32r6_deps="mips"

  2339. mips64r2_deps="mips"

  2340. mips64r6_deps="mips"

  2341. mipsfpu_deps="mips"

  2342. mipsdsp_deps="mips"

  2343. mipsdspr2_deps="mips"

  2344. mmi_deps="mips"

  2345. msa_deps="mipsfpu"

  2346. 

  2347. cpunop_deps="i686"

  2348. x86_64_select="i686"

  2349. x86_64_suggest="fast_cmov"

  2350. 

  2351. amd3dnow_deps="mmx"

  2352. amd3dnowext_deps="amd3dnow"

  2353. i686_deps="x86"

  2354. mmx_deps="x86"

  2355. mmxext_deps="mmx"

  2356. sse_deps="mmxext"

  2357. sse2_deps="sse"

  2358. sse3_deps="sse2"

  2359. ssse3_deps="sse3"

  2360. sse4_deps="ssse3"

  2361. sse42_deps="sse4"

  2362. aesni_deps="sse42"

  2363. avx_deps="sse42"

  2364. xop_deps="avx"

  2365. fma3_deps="avx"

  2366. fma4_deps="avx"

  2367. avx2_deps="avx"

  2368. 

  2369. mmx_external_deps="x86asm"

  2370. mmx_inline_deps="inline_asm x86"

  2371. mmx_suggest="mmx_external mmx_inline"

  2372. 

  2373. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2374.     eval dep=\$${ext}_deps

  2375.     eval ${ext}_external_deps='"${dep}_external"'

  2376.     eval ${ext}_inline_deps='"${dep}_inline"'

  2377.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2378. done

  2379. 

  2380. aligned_stack_if_any="aarch64 ppc x86"

  2381. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2382. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2383. fast_unaligned_if_any="aarch64 ppc x86"

  2384. simd_align_16_if_any="altivec neon sse"

  2385. simd_align_32_if_any="avx"

  2386. 

  2387. # system capabilities

  2388. symver_if_any="symver_asm_label symver_gnu_asm"

  2389. valgrind_backtrace_conflict="optimizations"

  2390. valgrind_backtrace_deps="valgrind_valgrind_h"

  2391. 

  2392. # threading support

  2393. atomics_gcc_if="sync_val_compare_and_swap"

  2394. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2395. atomics_win32_if="MemoryBarrier"

  2396. atomics_native_if_any="$ATOMICS_LIST"

  2397. w32threads_deps="atomics_native"

  2398. threads_if_any="$THREADS_LIST"

  2399. 

  2400. # subsystems

  2401. cbs_h264_select="cbs golomb"

  2402. cbs_h265_select="cbs golomb"

  2403. cbs_mpeg2_select="cbs"

  2404. dct_select="rdft"

  2405. dirac_parse_select="golomb"

  2406. error_resilience_select="me_cmp"

  2407. faandct_deps="faan"

  2408. faandct_select="fdctdsp"

  2409. faanidct_deps="faan"

  2410. faanidct_select="idctdsp"

  2411. h264dsp_select="startcode"

  2412. hevcparse_select="golomb"

  2413. frame_thread_encoder_deps="encoders threads"

  2414. intrax8_select="blockdsp idctdsp"

  2415. mdct_select="fft"

  2416. mdct15_select="fft"

  2417. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2418. mpeg_er_select="error_resilience"

  2419. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2420. mpegaudiodsp_select="dct"

  2421. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2422. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2423. vc1dsp_select="h264chroma qpeldsp startcode"

  2424. rdft_select="fft"

  2425. 

  2426. # decoders / encoders

  2427. aac_decoder_select="adts_header mdct15 mdct sinewin"

  2428. aac_fixed_decoder_select="mdct sinewin"

  2429. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2430. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2431. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2432. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2433. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2434. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2435. adpcm_g722_decoder_select="g722dsp"

  2436. adpcm_g722_encoder_select="g722dsp"

  2437. aic_decoder_select="golomb idctdsp"

  2438. alac_encoder_select="lpc"

  2439. als_decoder_select="bswapdsp"

  2440. amrnb_decoder_select="lsp"

  2441. amrwb_decoder_select="lsp"

  2442. amv_decoder_select="sp5x_decoder exif"

  2443. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2444. ape_decoder_select="bswapdsp llauddsp"

  2445. apng_decoder_deps="zlib"

  2446. apng_encoder_deps="zlib"

  2447. apng_encoder_select="llvidencdsp"

  2448. aptx_decoder_select="audio_frame_queue"

  2449. aptx_encoder_select="audio_frame_queue"

  2450. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2451. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2452. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2453. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2454. atrac1_decoder_select="mdct sinewin"

  2455. atrac3_decoder_select="mdct"

  2456. atrac3p_decoder_select="mdct sinewin"

  2457. avrn_decoder_select="exif jpegtables"

  2458. bink_decoder_select="blockdsp hpeldsp"

  2459. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2460. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2461. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2462. clearvideo_decoder_select="idctdsp"

  2463. cllc_decoder_select="bswapdsp"

  2464. comfortnoise_encoder_select="lpc"

  2465. cook_decoder_select="audiodsp mdct sinewin"

  2466. cscd_decoder_select="lzo"

  2467. cscd_decoder_suggest="zlib"

  2468. dca_decoder_select="mdct"

  2469. dds_decoder_select="texturedsp"

  2470. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2471. dnxhd_decoder_select="blockdsp idctdsp"

  2472. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2473. dolby_e_decoder_select="mdct"

  2474. dvvideo_decoder_select="dvprofile idctdsp"

  2475. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2476. dxa_decoder_deps="zlib"

  2477. dxv_decoder_select="lzf texturedsp"

  2478. eac3_decoder_select="ac3_decoder"

  2479. eac3_encoder_select="ac3_encoder"

  2480. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2481. eatgq_decoder_select="aandcttables"

  2482. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2483. exr_decoder_deps="zlib"

  2484. ffv1_decoder_select="rangecoder"

  2485. ffv1_encoder_select="rangecoder"

  2486. ffvhuff_decoder_select="huffyuv_decoder"

  2487. ffvhuff_encoder_select="huffyuv_encoder"

  2488. fic_decoder_select="golomb"

  2489. flac_decoder_select="flacdsp"

  2490. flac_encoder_select="bswapdsp flacdsp lpc"

  2491. flashsv2_decoder_deps="zlib"

  2492. flashsv2_encoder_deps="zlib"

  2493. flashsv_decoder_deps="zlib"

  2494. flashsv_encoder_deps="zlib"

  2495. flv_decoder_select="h263_decoder"

  2496. flv_encoder_select="h263_encoder"

  2497. fourxm_decoder_select="blockdsp bswapdsp"

  2498. fraps_decoder_select="bswapdsp huffman"

  2499. g2m_decoder_deps="zlib"

  2500. g2m_decoder_select="blockdsp idctdsp jpegtables"

  2501. g729_decoder_select="audiodsp"

  2502. h261_decoder_select="mpegvideo"

  2503. h261_encoder_select="aandcttables mpegvideoenc"

  2504. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2505. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2506. h263i_decoder_select="h263_decoder"

  2507. h263p_decoder_select="h263_decoder"

  2508. h263p_encoder_select="h263_encoder"

  2509. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2510. h264_decoder_suggest="error_resilience"

  2511. hap_decoder_select="snappy texturedsp"

  2512. hap_encoder_deps="libsnappy"

  2513. hap_encoder_select="texturedspenc"

  2514. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2515. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2516. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2517. iac_decoder_select="imc_decoder"

  2518. imc_decoder_select="bswapdsp fft mdct sinewin"

  2519. indeo3_decoder_select="hpeldsp"

  2520. indeo4_decoder_select="ividsp"

  2521. indeo5_decoder_select="ividsp"

  2522. interplay_video_decoder_select="hpeldsp"

  2523. jpegls_decoder_select="mjpeg_decoder"

  2524. jv_decoder_select="blockdsp"

  2525. lagarith_decoder_select="llviddsp"

  2526. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2527. magicyuv_decoder_select="llviddsp"

  2528. magicyuv_encoder_select="llvidencdsp"

  2529. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2530. metasound_decoder_select="lsp mdct sinewin"

  2531. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2532. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2533. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2534. mjpegb_decoder_select="mjpeg_decoder"

  2535. mlp_decoder_select="mlp_parser"

  2536. mlp_encoder_select="lpc"

  2537. motionpixels_decoder_select="bswapdsp"

  2538. mp1_decoder_select="mpegaudio"

  2539. mp1float_decoder_select="mpegaudio"

  2540. mp2_decoder_select="mpegaudio"

  2541. mp2float_decoder_select="mpegaudio"

  2542. mp3_decoder_select="mpegaudio"

  2543. mp3adu_decoder_select="mpegaudio"

  2544. mp3adufloat_decoder_select="mpegaudio"

  2545. mp3float_decoder_select="mpegaudio"

  2546. mp3on4_decoder_select="mpegaudio"

  2547. mp3on4float_decoder_select="mpegaudio"

  2548. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2549. mpc8_decoder_select="mpegaudiodsp"

  2550. mpegvideo_decoder_select="mpegvideo"

  2551. mpeg1video_decoder_select="mpegvideo"

  2552. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2553. mpeg2video_decoder_select="mpegvideo"

  2554. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2555. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2556. mpeg4_encoder_select="h263_encoder"

  2557. msa1_decoder_select="mss34dsp"

  2558. mscc_decoder_deps="zlib"

  2559. msmpeg4v1_decoder_select="h263_decoder"

  2560. msmpeg4v2_decoder_select="h263_decoder"

  2561. msmpeg4v2_encoder_select="h263_encoder"

  2562. msmpeg4v3_decoder_select="h263_decoder"

  2563. msmpeg4v3_encoder_select="h263_encoder"

  2564. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2565. mts2_decoder_select="mss34dsp"

  2566. mxpeg_decoder_select="mjpeg_decoder"

  2567. nellymoser_decoder_select="mdct sinewin"

  2568. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2569. nuv_decoder_select="idctdsp lzo"

  2570. on2avc_decoder_select="mdct"

  2571. opus_decoder_deps="swresample"

  2572. opus_decoder_select="mdct15"

  2573. opus_encoder_select="audio_frame_queue mdct15"

  2574. png_decoder_deps="zlib"

  2575. png_encoder_deps="zlib"

  2576. png_encoder_select="llvidencdsp"

  2577. prores_decoder_select="blockdsp idctdsp"

  2578. prores_encoder_select="fdctdsp"

  2579. qcelp_decoder_select="lsp"

  2580. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2581. ra_144_decoder_select="audiodsp"

  2582. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2583. ralf_decoder_select="golomb"

  2584. rawvideo_decoder_select="bswapdsp"

  2585. rscc_decoder_deps="zlib"

  2586. rtjpeg_decoder_select="me_cmp"

  2587. rv10_decoder_select="h263_decoder"

  2588. rv10_encoder_select="h263_encoder"

  2589. rv20_decoder_select="h263_decoder"

  2590. rv20_encoder_select="h263_encoder"

  2591. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2592. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2593. screenpresso_decoder_deps="zlib"

  2594. shorten_decoder_select="bswapdsp"

  2595. sipr_decoder_select="lsp"

  2596. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2597. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2598. sonic_decoder_select="golomb rangecoder"

  2599. sonic_encoder_select="golomb rangecoder"

  2600. sonic_ls_encoder_select="golomb rangecoder"

  2601. sp5x_decoder_select="mjpeg_decoder"

  2602. srgc_decoder_deps="zlib"

  2603. svq1_decoder_select="hpeldsp"

  2604. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2605. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2606. svq3_decoder_suggest="zlib"

  2607. tak_decoder_select="audiodsp"

  2608. tdsc_decoder_deps="zlib"

  2609. tdsc_decoder_select="mjpeg_decoder"

  2610. theora_decoder_select="vp3_decoder"

  2611. thp_decoder_select="mjpeg_decoder"

  2612. tiff_decoder_suggest="zlib lzma"

  2613. tiff_encoder_suggest="zlib"

  2614. truehd_decoder_select="mlp_parser"

  2615. truehd_encoder_select="lpc"

  2616. truemotion2_decoder_select="bswapdsp"

  2617. truespeech_decoder_select="bswapdsp"

  2618. tscc_decoder_deps="zlib"

  2619. twinvq_decoder_select="mdct lsp sinewin"

  2620. txd_decoder_select="texturedsp"

  2621. utvideo_decoder_select="bswapdsp llviddsp"

  2622. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2623. vble_decoder_select="llviddsp"

  2624. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2625. vc1image_decoder_select="vc1_decoder"

  2626. vorbis_decoder_select="mdct"

  2627. vorbis_encoder_select="mdct"

  2628. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2629. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2630. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2631. vp6a_decoder_select="vp6_decoder"

  2632. vp6f_decoder_select="vp6_decoder"

  2633. vp7_decoder_select="h264pred videodsp vp8dsp"

  2634. vp8_decoder_select="h264pred videodsp vp8dsp"

  2635. vp9_decoder_select="videodsp vp9_parser"

  2636. webp_decoder_select="vp8_decoder exif"

  2637. wmalossless_decoder_select="llauddsp"

  2638. wmapro_decoder_select="mdct sinewin wma_freqs"

  2639. wmav1_decoder_select="mdct sinewin wma_freqs"

  2640. wmav1_encoder_select="mdct sinewin wma_freqs"

  2641. wmav2_decoder_select="mdct sinewin wma_freqs"

  2642. wmav2_encoder_select="mdct sinewin wma_freqs"

  2643. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2644. wmv1_decoder_select="h263_decoder"

  2645. wmv1_encoder_select="h263_encoder"

  2646. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2647. wmv2_encoder_select="h263_encoder wmv2dsp"

  2648. wmv3_decoder_select="vc1_decoder"

  2649. wmv3image_decoder_select="wmv3_decoder"

  2650. xma1_decoder_select="wmapro_decoder"

  2651. xma2_decoder_select="wmapro_decoder"

  2652. zerocodec_decoder_deps="zlib"

  2653. zlib_decoder_deps="zlib"

  2654. zlib_encoder_deps="zlib"

  2655. zmbv_decoder_deps="zlib"

  2656. zmbv_encoder_deps="zlib"

  2657. 

  2658. # hardware accelerators

  2659. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2660. cuda_deps_any="libdl LoadLibrary"

  2661. cuvid_deps="cuda"

  2662. d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2663. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2664. nvdec_deps="cuda"

  2665. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2666. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2667. xvmc_deps="X11_extensions_XvMClib_h"

  2668. 

  2669. h263_vaapi_hwaccel_deps="vaapi"

  2670. h263_vaapi_hwaccel_select="h263_decoder"

  2671. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2672. h263_videotoolbox_hwaccel_select="h263_decoder"

  2673. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2674. h264_d3d11va_hwaccel_deps="d3d11va"

  2675. h264_d3d11va_hwaccel_select="h264_decoder"

  2676. h264_d3d11va2_hwaccel_deps="d3d11va"

  2677. h264_d3d11va2_hwaccel_select="h264_decoder"

  2678. h264_dxva2_hwaccel_deps="dxva2"

  2679. h264_dxva2_hwaccel_select="h264_decoder"

  2680. h264_mediacodec_hwaccel_deps="mediacodec"

  2681. h264_mmal_hwaccel_deps="mmal"

  2682. h264_nvdec_hwaccel_deps="nvdec"

  2683. h264_nvdec_hwaccel_select="h264_decoder"

  2684. h264_qsv_hwaccel_deps="libmfx"

  2685. h264_vaapi_hwaccel_deps="vaapi"

  2686. h264_vaapi_hwaccel_select="h264_decoder"

  2687. h264_vdpau_hwaccel_deps="vdpau"

  2688. h264_vdpau_hwaccel_select="h264_decoder"

  2689. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2690. h264_videotoolbox_hwaccel_select="h264_decoder"

  2691. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2692. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2693. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2694. hevc_mediacodec_hwaccel_deps="mediacodec"

  2695. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2696. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2697. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2698. hevc_dxva2_hwaccel_select="hevc_decoder"

  2699. hevc_nvdec_hwaccel_deps="nvdec"

  2700. hevc_nvdec_hwaccel_select="hevc_decoder"

  2701. hevc_qsv_hwaccel_deps="libmfx"

  2702. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2703. hevc_vaapi_hwaccel_select="hevc_decoder"

  2704. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2705. hevc_vdpau_hwaccel_select="hevc_decoder"

  2706. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2707. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2708. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2709. mpeg_xvmc_hwaccel_deps="xvmc"

  2710. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2711. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2712. mpeg1_nvdec_hwaccel_deps="nvdec"

  2713. mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"

  2714. mpeg1_vdpau_hwaccel_deps="vdpau"

  2715. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2716. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2717. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2718. mpeg1_xvmc_hwaccel_deps="xvmc"

  2719. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2720. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2721. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2722. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2723. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2724. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2725. mpeg2_dxva2_hwaccel_deps="dxva2"

  2726. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2727. mpeg2_mediacodec_hwaccel_deps="mediacodec"

  2728. mpeg2_mmal_hwaccel_deps="mmal"

  2729. mpeg2_nvdec_hwaccel_deps="nvdec"

  2730. mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"

  2731. mpeg2_qsv_hwaccel_deps="libmfx"

  2732. mpeg2_vaapi_hwaccel_deps="vaapi"

  2733. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2734. mpeg2_vdpau_hwaccel_deps="vdpau"

  2735. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2736. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2737. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2738. mpeg2_xvmc_hwaccel_deps="xvmc"

  2739. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2740. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2741. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2742. mpeg4_mmal_hwaccel_deps="mmal"

  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_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2752. vc1_d3d11va_hwaccel_deps="d3d11va"

  2753. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2754. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2755. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2756. vc1_dxva2_hwaccel_deps="dxva2"

  2757. vc1_dxva2_hwaccel_select="vc1_decoder"

  2758. vc1_mmal_hwaccel_deps="mmal"

  2759. vc1_nvdec_hwaccel_deps="nvdec"

  2760. vc1_nvdec_hwaccel_select="vc1_decoder"

  2761. vc1_qsv_hwaccel_deps="libmfx"

  2762. vc1_vaapi_hwaccel_deps="vaapi"

  2763. vc1_vaapi_hwaccel_select="vc1_decoder"

  2764. vc1_vdpau_hwaccel_deps="vdpau"

  2765. vc1_vdpau_hwaccel_select="vc1_decoder"

  2766. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2767. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2768. vp8_mediacodec_hwaccel_deps="mediacodec"

  2769. vp8_qsv_hwaccel_deps="libmfx"

  2770. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2771. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2772. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2773. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2774. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2775. vp9_dxva2_hwaccel_select="vp9_decoder"

  2776. vp9_mediacodec_hwaccel_deps="mediacodec"

  2777. vp9_nvdec_hwaccel_deps="nvdec"

  2778. vp9_nvdec_hwaccel_select="vp9_decoder"

  2779. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2780. vp9_vaapi_hwaccel_select="vp9_decoder"

  2781. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2782. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2783. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2784. wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"

  2785. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2786. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2787. 

  2788. # hardware-accelerated codecs

  2789. omx_deps="libdl pthreads"

  2790. omx_rpi_select="omx"

  2791. qsv_deps="libmfx"

  2792. qsvdec_select="qsv"

  2793. qsvenc_select="qsv"

  2794. qsvvpp_select="qsv"

  2795. vaapi_encode_deps="vaapi"

  2796. v4l2_m2m_deps_any="linux_videodev2_h"

  2797. 

  2798. hwupload_cuda_filter_deps="cuda"

  2799. scale_npp_filter_deps="cuda libnpp"

  2800. scale_cuda_filter_deps="cuda_sdk"

  2801. thumbnail_cuda_filter_deps="cuda_sdk"

  2802. 

  2803. nvenc_deps="cuda"

  2804. nvenc_deps_any="libdl LoadLibrary"

  2805. nvenc_encoder_deps="nvenc"

  2806. 

  2807. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2808. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2809. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2810. h264_cuvid_decoder_deps="cuvid"

  2811. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2812. h264_mediacodec_decoder_deps="mediacodec"

  2813. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2814. h264_mmal_decoder_deps="mmal"

  2815. h264_nvenc_encoder_deps="nvenc"

  2816. h264_omx_encoder_deps="omx"

  2817. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2818. h264_qsv_encoder_select="qsvenc"

  2819. h264_rkmpp_decoder_deps="rkmpp"

  2820. h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"

  2821. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2822. h264_vaapi_encoder_select="cbs_h264 vaapi_encode"

  2823. h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"

  2824. h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"

  2825. hevc_cuvid_decoder_deps="cuvid"

  2826. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2827. hevc_mediacodec_decoder_deps="mediacodec"

  2828. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2829. hevc_nvenc_encoder_deps="nvenc"

  2830. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2831. hevc_qsv_encoder_select="hevcparse qsvenc"

  2832. hevc_rkmpp_decoder_deps="rkmpp"

  2833. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2834. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2835. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2836. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2837. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2838. mjpeg_cuvid_decoder_deps="cuvid"

  2839. mjpeg_qsv_encoder_deps="libmfx"

  2840. mjpeg_qsv_encoder_select="qsvenc"

  2841. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2842. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2843. mpeg1_cuvid_decoder_deps="cuvid"

  2844. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2845. mpeg2_crystalhd_decoder_select="crystalhd"

  2846. mpeg2_cuvid_decoder_deps="cuvid"

  2847. mpeg2_mmal_decoder_deps="mmal"

  2848. mpeg2_mediacodec_decoder_deps="mediacodec"

  2849. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2850. mpeg2_qsv_encoder_select="qsvenc"

  2851. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2852. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2853. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2854. mpeg4_crystalhd_decoder_select="crystalhd"

  2855. mpeg4_cuvid_decoder_deps="cuvid"

  2856. mpeg4_mediacodec_decoder_deps="mediacodec"

  2857. mpeg4_mmal_decoder_deps="mmal"

  2858. mpeg4_omx_encoder_deps="omx"

  2859. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2860. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2861. msmpeg4_crystalhd_decoder_select="crystalhd"

  2862. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2863. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2864. vc1_crystalhd_decoder_select="crystalhd"

  2865. vc1_cuvid_decoder_deps="cuvid"

  2866. vc1_mmal_decoder_deps="mmal"

  2867. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2868. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2869. vp8_cuvid_decoder_deps="cuvid"

  2870. vp8_mediacodec_decoder_deps="mediacodec"

  2871. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2872. vp8_rkmpp_decoder_deps="rkmpp"

  2873. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2874. vp8_vaapi_encoder_select="vaapi_encode"

  2875. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2876. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2877. vp9_cuvid_decoder_deps="cuvid"

  2878. vp9_mediacodec_decoder_deps="mediacodec"

  2879. vp9_rkmpp_decoder_deps="rkmpp"

  2880. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2881. vp9_vaapi_encoder_select="vaapi_encode"

  2882. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2883. wmv3_crystalhd_decoder_select="crystalhd"

  2884. 

  2885. # parsers

  2886. aac_parser_select="adts_header"

  2887. h264_parser_select="golomb h264dsp h264parse"

  2888. hevc_parser_select="hevcparse"

  2889. mpegaudio_parser_select="mpegaudioheader"

  2890. mpegvideo_parser_select="mpegvideo"

  2891. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2892. vc1_parser_select="vc1dsp"

  2893. 

  2894. # bitstream_filters

  2895. aac_adtstoasc_bsf_select="adts_header"

  2896. h264_metadata_bsf_select="cbs_h264"

  2897. h264_redundant_pps_bsf_select="cbs_h264"

  2898. hevc_metadata_bsf_select="cbs_h265"

  2899. mjpeg2jpeg_bsf_select="jpegtables"

  2900. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2901. trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"

  2902. 

  2903. # external libraries

  2904. aac_at_decoder_deps="audiotoolbox"

  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. mmsh_protocol_select="http_protocol"

  3158. mmst_protocol_select="network"

  3159. rtmp_protocol_conflict="librtmp_protocol"

  3160. rtmp_protocol_select="tcp_protocol"

  3161. rtmp_protocol_suggest="zlib"

  3162. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3163. rtmpe_protocol_suggest="zlib"

  3164. rtmps_protocol_conflict="librtmp_protocol"

  3165. rtmps_protocol_select="tls_protocol"

  3166. rtmps_protocol_suggest="zlib"

  3167. rtmpt_protocol_select="ffrtmphttp_protocol"

  3168. rtmpt_protocol_suggest="zlib"

  3169. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3170. rtmpte_protocol_suggest="zlib"

  3171. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3172. rtmpts_protocol_suggest="zlib"

  3173. rtp_protocol_select="udp_protocol"

  3174. schannel_conflict="openssl gnutls"

  3175. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3176. sctp_protocol_select="network"

  3177. securetransport_conflict="openssl gnutls"

  3178. srtp_protocol_select="rtp_protocol srtp"

  3179. tcp_protocol_select="network"

  3180. tls_protocol_deps_any="gnutls openssl schannel securetransport"

  3181. tls_protocol_select="tcp_protocol"

  3182. udp_protocol_select="network"

  3183. udplite_protocol_select="network"

  3184. unix_protocol_deps="sys_un_h"

  3185. unix_protocol_select="network"

  3186. 

  3187. # filters

  3188. afftfilt_filter_deps="avcodec"

  3189. afftfilt_filter_select="fft"

  3190. afir_filter_deps="avcodec"

  3191. afir_filter_select="fft"

  3192. amovie_filter_deps="avcodec avformat"

  3193. aresample_filter_deps="swresample"

  3194. ass_filter_deps="libass"

  3195. atempo_filter_deps="avcodec"

  3196. atempo_filter_select="rdft"

  3197. azmq_filter_deps="libzmq"

  3198. blackframe_filter_deps="gpl"

  3199. boxblur_filter_deps="gpl"

  3200. bs2b_filter_deps="libbs2b"

  3201. colormatrix_filter_deps="gpl"

  3202. coreimage_filter_deps="coreimage appkit"

  3203. coreimage_filter_extralibs="-framework OpenGL"

  3204. coreimagesrc_filter_deps="coreimage appkit"

  3205. coreimagesrc_filter_extralibs="-framework OpenGL"

  3206. cover_rect_filter_deps="avcodec avformat gpl"

  3207. cropdetect_filter_deps="gpl"

  3208. deinterlace_qsv_filter_deps="libmfx"

  3209. deinterlace_vaapi_filter_deps="vaapi"

  3210. delogo_filter_deps="gpl"

  3211. deshake_filter_select="pixelutils"

  3212. deshake_filter_suggest="opencl"

  3213. drawtext_filter_deps="libfreetype"

  3214. drawtext_filter_suggest="libfontconfig libfribidi"

  3215. elbg_filter_deps="avcodec"

  3216. eq_filter_deps="gpl"

  3217. fftfilt_filter_deps="avcodec"

  3218. fftfilt_filter_select="rdft"

  3219. find_rect_filter_deps="avcodec avformat gpl"

  3220. firequalizer_filter_deps="avcodec"

  3221. firequalizer_filter_select="rdft"

  3222. flite_filter_deps="libflite"

  3223. framerate_filter_select="pixelutils"

  3224. frei0r_filter_deps="frei0r libdl"

  3225. frei0r_src_filter_deps="frei0r libdl"

  3226. fspp_filter_deps="gpl"

  3227. geq_filter_deps="gpl"

  3228. histeq_filter_deps="gpl"

  3229. hqdn3d_filter_deps="gpl"

  3230. interlace_filter_deps="gpl"

  3231. kerndeint_filter_deps="gpl"

  3232. ladspa_filter_deps="ladspa libdl"

  3233. mcdeint_filter_deps="avcodec gpl"

  3234. movie_filter_deps="avcodec avformat"

  3235. mpdecimate_filter_deps="gpl"

  3236. mpdecimate_filter_select="pixelutils"

  3237. mptestsrc_filter_deps="gpl"

  3238. negate_filter_deps="lut_filter"

  3239. nnedi_filter_deps="gpl"

  3240. ocr_filter_deps="libtesseract"

  3241. ocv_filter_deps="libopencv"

  3242. overlay_opencl_filter_deps="opencl"

  3243. overlay_qsv_filter_deps="libmfx"

  3244. overlay_qsv_filter_select="qsvvpp"

  3245. owdenoise_filter_deps="gpl"

  3246. pan_filter_deps="swresample"

  3247. perspective_filter_deps="gpl"

  3248. phase_filter_deps="gpl"

  3249. pp7_filter_deps="gpl"

  3250. pp_filter_deps="gpl postproc"

  3251. pullup_filter_deps="gpl"

  3252. removelogo_filter_deps="avcodec avformat swscale"

  3253. repeatfields_filter_deps="gpl"

  3254. resample_filter_deps="avresample"

  3255. rubberband_filter_deps="librubberband"

  3256. sab_filter_deps="gpl swscale"

  3257. scale2ref_filter_deps="swscale"

  3258. scale_filter_deps="swscale"

  3259. scale_qsv_filter_deps="libmfx"

  3260. select_filter_select="pixelutils"

  3261. showcqt_filter_deps="avcodec avformat swscale"

  3262. showcqt_filter_suggest="libfontconfig libfreetype"

  3263. showcqt_filter_select="fft"

  3264. showfreqs_filter_deps="avcodec"

  3265. showfreqs_filter_select="fft"

  3266. showspectrum_filter_deps="avcodec"

  3267. showspectrum_filter_select="fft"

  3268. showspectrumpic_filter_deps="avcodec"

  3269. showspectrumpic_filter_select="fft"

  3270. signature_filter_deps="gpl avcodec avformat"

  3271. smartblur_filter_deps="gpl swscale"

  3272. sofalizer_filter_deps="libmysofa avcodec"

  3273. sofalizer_filter_select="fft"

  3274. spectrumsynth_filter_deps="avcodec"

  3275. spectrumsynth_filter_select="fft"

  3276. spp_filter_deps="gpl avcodec"

  3277. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3278. stereo3d_filter_deps="gpl"

  3279. subtitles_filter_deps="avformat avcodec libass"

  3280. super2xsai_filter_deps="gpl"

  3281. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3282. tinterlace_filter_deps="gpl"

  3283. tinterlace_merge_test_deps="tinterlace_filter"

  3284. tinterlace_pad_test_deps="tinterlace_filter"

  3285. tonemap_filter_deps="const_nan"

  3286. unsharp_opencl_filter_deps="opencl"

  3287. uspp_filter_deps="gpl avcodec"

  3288. unsharp_filter_suggest="opencl"

  3289. vaguedenoiser_filter_deps="gpl"

  3290. vidstabdetect_filter_deps="libvidstab"

  3291. vidstabtransform_filter_deps="libvidstab"

  3292. libvmaf_filter_deps="libvmaf"

  3293. zmq_filter_deps="libzmq"

  3294. zoompan_filter_deps="swscale"

  3295. zscale_filter_deps="libzimg const_nan"

  3296. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3297. vpp_qsv_filter_deps="libmfx"

  3298. vpp_qsv_filter_select="qsvvpp"

  3299. 

  3300. # examples

  3301. avio_dir_cmd_deps="avformat avutil"

  3302. avio_reading_deps="avformat avcodec avutil"

  3303. decode_audio_example_deps="avcodec avutil"

  3304. decode_video_example_deps="avcodec avutil"

  3305. demuxing_decoding_example_deps="avcodec avformat avutil"

  3306. encode_audio_example_deps="avcodec avutil"

  3307. encode_video_example_deps="avcodec avutil"

  3308. extract_mvs_example_deps="avcodec avformat avutil"

  3309. filter_audio_example_deps="avfilter avutil"

  3310. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3311. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3312. http_multiclient_example_deps="avformat avutil fork"

  3313. hw_decode_example_deps="avcodec avformat avutil"

  3314. metadata_example_deps="avformat avutil"

  3315. muxing_example_deps="avcodec avformat avutil swscale"

  3316. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3317. remuxing_example_deps="avcodec avformat avutil"

  3318. resampling_audio_example_deps="avutil swresample"

  3319. scaling_video_example_deps="avutil swscale"

  3320. transcode_aac_example_deps="avcodec avformat swresample"

  3321. transcoding_example_deps="avfilter avcodec avformat avutil"

  3322. 

  3323. # EXTRALIBS_LIST

  3324. cpu_init_extralibs="pthreads_extralibs"

  3325. cws2fws_extralibs="zlib_extralibs"

  3326. 

  3327. # libraries, in linking order

  3328. avcodec_deps="avutil"

  3329. avcodec_suggest="libm"

  3330. avcodec_select="null_bsf"

  3331. avdevice_deps="avformat avcodec avutil"

  3332. avdevice_suggest="libm"

  3333. avfilter_deps="avutil"

  3334. avfilter_suggest="libm"

  3335. avformat_deps="avcodec avutil"

  3336. avformat_suggest="libm network zlib"

  3337. avresample_deps="avutil"

  3338. avresample_suggest="libm"

  3339. avutil_suggest="clock_gettime cuda libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"

  3340. postproc_deps="avutil gpl"

  3341. postproc_suggest="libm"

  3342. swresample_deps="avutil"

  3343. swresample_suggest="libm libsoxr"

  3344. swscale_deps="avutil"

  3345. swscale_suggest="libm"

  3346. 

  3347. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3348. avfilter_extralibs="pthreads_extralibs"

  3349. avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3350. 

  3351. # programs

  3352. ffmpeg_deps="avcodec avfilter avformat swresample"

  3353. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3354.                null_filter

  3355.                trim_filter"

  3356. ffmpeg_suggest="ole32 psapi shell32"

  3357. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3358. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3359. ffplay_suggest="shell32"

  3360. ffprobe_deps="avcodec avformat"

  3361. ffprobe_suggest="shell32"

  3362. ffserver_deps="avformat fork sarestart"

  3363. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3364. 

  3365. # documentation

  3366. podpages_deps="perl"

  3367. manpages_deps="perl pod2man"

  3368. htmlpages_deps="perl"

  3369. htmlpages_deps_any="makeinfo_html texi2html"

  3370. txtpages_deps="perl makeinfo"

  3371. doc_deps_any="manpages htmlpages podpages txtpages"

  3372. 

  3373. # default parameters

  3374. 

  3375. logfile="ffbuild/config.log"

  3376. 

  3377. # installation paths

  3378. prefix_default="/usr/local"

  3379. bindir_default='${prefix}/bin'

  3380. datadir_default='${prefix}/share/ffmpeg'

  3381. docdir_default='${prefix}/share/doc/ffmpeg'

  3382. incdir_default='${prefix}/include'

  3383. libdir_default='${prefix}/lib'

  3384. mandir_default='${prefix}/share/man'

  3385. 

  3386. # toolchain

  3387. ar_default="ar"

  3388. cc_default="gcc"

  3389. cxx_default="g++"

  3390. host_cc_default="gcc"

  3391. doxygen_default="doxygen"

  3392. install="install"

  3393. ln_s_default="ln -s -f"

  3394. nm_default="nm -g"

  3395. pkg_config_default=pkg-config

  3396. ranlib_default="ranlib"

  3397. strip_default="strip"

  3398. version_script='--version-script'

  3399. objformat="elf32"

  3400. x86asmexe_default="nasm"

  3401. windres_default="windres"

  3402. nvcc_default="nvcc"

  3403. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3404. striptype="direct"

  3405. 

  3406. # OS

  3407. target_os_default=$(tolower $(uname -s))

  3408. host_os=$target_os_default

  3409. 

  3410. # machine

  3411. if test "$target_os_default" = aix; then

  3412.     arch_default=$(uname -p)

  3413.     strip_default="strip -X32_64"

  3414. else

  3415.     arch_default=$(uname -m)

  3416. fi

  3417. cpu="generic"

  3418. intrinsics="none"

  3419. 

  3420. # configurable options

  3421. enable $PROGRAM_LIST

  3422. enable $DOCUMENT_LIST

  3423. enable $EXAMPLE_LIST

  3424. enable $(filter_out avresample $LIBRARY_LIST)

  3425. enable stripping

  3426. 

  3427. enable asm

  3428. enable debug

  3429. enable doc

  3430. enable faan faandct faanidct

  3431. enable optimizations

  3432. enable runtime_cpudetect

  3433. enable safe_bitstream_reader

  3434. enable static

  3435. enable swscale_alpha

  3436. enable valgrind_backtrace

  3437. 

  3438. sws_max_filter_size_default=256

  3439. set_default sws_max_filter_size

  3440. 

  3441. # internal components are enabled by default

  3442. enable $EXTRALIBS_LIST

  3443. 

  3444. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3445. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3446. 

  3447. # build settings

  3448. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3449. LIBPREF="lib"

  3450. LIBSUF=".a"

  3451. FULLNAME='$(NAME)$(BUILDSUF)'

  3452. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3453. SLIBPREF="lib"

  3454. SLIBSUF=".so"

  3455. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3456. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3457. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3458. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3459. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3460. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3461. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3462. 

  3463. asflags_filter=echo

  3464. cflags_filter=echo

  3465. ldflags_filter=echo

  3466. 

  3467. AS_C='-c'

  3468. AS_O='-o $@'

  3469. CC_C='-c'

  3470. CC_E='-E -o $@'

  3471. CC_O='-o $@'

  3472. CXX_C='-c'

  3473. CXX_O='-o $@'

  3474. OBJCC_C='-c'

  3475. OBJCC_E='-E -o $@'

  3476. OBJCC_O='-o $@'

  3477. X86ASM_O='-o $@'

  3478. LD_O='-o $@'

  3479. LD_LIB='-l%'

  3480. LD_PATH='-L'

  3481. HOSTCC_C='-c'

  3482. HOSTCC_E='-E -o $@'

  3483. HOSTCC_O='-o $@'

  3484. HOSTLD_O='-o $@'

  3485. NVCC_C='-c'

  3486. NVCC_O='-o $@'

  3487. 

  3488. host_extralibs='-lm'

  3489. host_cflags_filter=echo

  3490. host_ldflags_filter=echo

  3491. 

  3492. target_path='$(CURDIR)'

  3493. 

  3494. # since the object filename is not given with the -MM flag, the compiler

  3495. # is only able to print the basename, and we must add the path ourselves

  3496. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3497. DEPFLAGS='-MM'

  3498. 

  3499. mkdir -p ffbuild

  3500. 

  3501. # find source path

  3502. if test -f configure; then

  3503.     source_path=.

  3504. else

  3505.     source_path=$(cd $(dirname "$0"); pwd)

  3506.     case "$source_path" in

  3507.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3508.     esac

  3509.     test -e "$source_path/config.h" &&

  3510.         die "Out of tree builds are impossible with config.h in source dir."

  3511. fi

  3512. 

  3513. for v in "$@"; do

  3514.     r=${v#*=}

  3515.     l=${v%"$r"}

  3516.     r=$(sh_quote "$r")

  3517.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3518. done

  3519. 

  3520. find_things(){

  3521.     thing=$1

  3522.     pattern=$2

  3523.     file=$source_path/$3

  3524.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3525. }

  3526. 

  3527. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3528. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3529. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3530. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3531. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3532. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3533. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3534. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3535. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3536. 

  3537. find_things_extern(){

  3538.     thing=$1

  3539.     pattern=$2

  3540.     file=$source_path/$3

  3541.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3542. }

  3543. 

  3544. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3545. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3546. 

  3547. AVCODEC_COMPONENTS_LIST="

  3548.     $BSF_LIST

  3549.     $DECODER_LIST

  3550.     $ENCODER_LIST

  3551.     $HWACCEL_LIST

  3552.     $PARSER_LIST

  3553. "

  3554. 

  3555. AVDEVICE_COMPONENTS_LIST="

  3556.     $INDEV_LIST

  3557.     $OUTDEV_LIST

  3558. "

  3559. 

  3560. AVFILTER_COMPONENTS_LIST="

  3561.     $FILTER_LIST

  3562. "

  3563. 

  3564. AVFORMAT_COMPONENTS_LIST="

  3565.     $DEMUXER_LIST

  3566.     $MUXER_LIST

  3567.     $PROTOCOL_LIST

  3568. "

  3569. 

  3570. ALL_COMPONENTS="

  3571.     $AVCODEC_COMPONENTS_LIST

  3572.     $AVDEVICE_COMPONENTS_LIST

  3573.     $AVFILTER_COMPONENTS_LIST

  3574.     $AVFORMAT_COMPONENTS_LIST

  3575. "

  3576. 

  3577. for n in $COMPONENT_LIST; do

  3578.     v=$(toupper ${n%s})_LIST

  3579.     eval enable \$$v

  3580.     eval ${n}_if_any="\$$v"

  3581. done

  3582. 

  3583. enable $ARCH_EXT_LIST

  3584. 

  3585. die_unknown(){

  3586.     echo "Unknown option \"$1\"."

  3587.     echo "See $0 --help for available options."

  3588.     exit 1

  3589. }

  3590. 

  3591. print_in_columns() {

  3592.     cols=$(expr $ncols / 24)

  3593.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3594. }

  3595. 

  3596. show_list() {

  3597.     suffix=_$1

  3598.     shift

  3599.     echo $* | sed s/$suffix//g | print_in_columns

  3600.     exit 0

  3601. }

  3602. 

  3603. rand_list(){

  3604.     IFS=', '

  3605.     set -- $*

  3606.     unset IFS

  3607.     for thing; do

  3608.         comp=${thing%:*}

  3609.         prob=${thing#$comp}

  3610.         prob=${prob#:}

  3611.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3612.         echo "prob ${prob:-0.5}"

  3613.         printf '%s\n' $comp

  3614.     done

  3615. }

  3616. 

  3617. do_random(){

  3618.     action=$1

  3619.     shift

  3620.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3621.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3622. }

  3623. 

  3624. for opt do

  3625.     optval="${opt#*=}"

  3626.     case "$opt" in

  3627.         --extra-ldflags=*)

  3628.             add_ldflags $optval

  3629.         ;;

  3630.         --extra-ldexeflags=*)

  3631.             add_ldexeflags $optval

  3632.         ;;

  3633.         --extra-ldsoflags=*)

  3634.             add_ldsoflags $optval

  3635.         ;;

  3636.         --extra-ldlibflags=*)

  3637.             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\

  3638.                  "removed in the future. Use --extra-ldsoflags instead."

  3639.             add_ldsoflags $optval

  3640.         ;;

  3641.         --extra-libs=*)

  3642.             add_extralibs $optval

  3643.         ;;

  3644.         --disable-devices)

  3645.             disable $INDEV_LIST $OUTDEV_LIST

  3646.         ;;

  3647.         --enable-debug=*)

  3648.             debuglevel="$optval"

  3649.         ;;

  3650.         --disable-programs)

  3651.             disable $PROGRAM_LIST

  3652.         ;;

  3653.         --disable-everything)

  3654.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3655.         ;;

  3656.         --disable-all)

  3657.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3658.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3659.             enable avutil

  3660.         ;;

  3661.         --enable-random|--disable-random)

  3662.             action=${opt%%-random}

  3663.             do_random ${action#--} $COMPONENT_LIST

  3664.         ;;

  3665.         --enable-random=*|--disable-random=*)

  3666.             action=${opt%%-random=*}

  3667.             do_random ${action#--} $optval

  3668.         ;;

  3669.         --enable-sdl)

  3670.             enable sdl2

  3671.         ;;

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

  3673.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3674.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3675.             eval list=\$$(toupper $thing)_LIST

  3676.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3677.             list=$(filter "$name" $list)

  3678.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3679.             $action $list

  3680.         ;;

  3681.         --enable-yasm|--disable-yasm)

  3682.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3683.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3684.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3685.         ;;

  3686.         --yasmexe=*)

  3687.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3688.                  "removed in the future. Use --x86asmexe instead."

  3689.             x86asmexe="$optval"

  3690.         ;;

  3691.         --enable-?*|--disable-?*)

  3692.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3693.             if is_in $option $COMPONENT_LIST; then

  3694.                 test $action = disable && action=unset

  3695.                 eval $action \$$(toupper ${option%s})_LIST

  3696.             elif is_in $option $CMDLINE_SELECT; then

  3697.                 $action $option

  3698.             else

  3699.                 die_unknown $opt

  3700.             fi

  3701.         ;;

  3702.         --list-*)

  3703.             NAME="${opt#--list-}"

  3704.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3705.             NAME=${NAME%s}

  3706.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3707.         ;;

  3708.         --help|-h) show_help

  3709.         ;;

  3710.         --quiet|-q) quiet=yes

  3711.         ;;

  3712.         --fatal-warnings) enable fatal_warnings

  3713.         ;;

  3714.         --libfuzzer=*)

  3715.             libfuzzer_path="$optval"

  3716.         ;;

  3717.         *)

  3718.             optname="${opt%%=*}"

  3719.             optname="${optname#--}"

  3720.             optname=$(echo "$optname" | sed 's/-/_/g')

  3721.             if is_in $optname $CMDLINE_SET; then

  3722.                 eval $optname='$optval'

  3723.             elif is_in $optname $CMDLINE_APPEND; then

  3724.                 append $optname "$optval"

  3725.             else

  3726.                 die_unknown $opt

  3727.             fi

  3728.         ;;

  3729.     esac

  3730. done

  3731. 

  3732. for e in $env; do

  3733.     eval "export $e"

  3734. done

  3735. 

  3736. if disabled autodetect; then

  3737. 

  3738.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3739.     # for the iconv from the libc.

  3740.     disabled iconv || enable libc_iconv

  3741. 

  3742.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3743.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3744. fi

  3745. # Mark specifically enabled, but normally autodetected libraries as requested.

  3746. for lib in $AUTODETECT_LIBS; do

  3747.     enabled $lib && request $lib

  3748. done

  3749. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3750. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3751. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3752. 

  3753. disabled logging && logfile=/dev/null

  3754. 

  3755. # command line configuration sanity checks

  3756. 

  3757. # we need to build at least one lib type

  3758. if ! enabled_any static shared; then

  3759.     cat <<EOF

  3760. At least one library type must be built.

  3761. Specify --enable-static to build the static libraries or --enable-shared to

  3762. build the shared libraries as well. To only build the shared libraries specify

  3763. --disable-static in addition to --enable-shared.

  3764. EOF

  3765.     exit 1

  3766. fi

  3767. 

  3768. die_license_disabled() {

  3769.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3770. }

  3771. 

  3772. die_license_disabled_gpl() {

  3773.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3774. }

  3775. 

  3776. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3777. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3778. 

  3779. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3780. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3781. 

  3782. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3783. 

  3784. enabled_all gnutls openssl &&

  3785.     die "GnuTLS and OpenSSL must not be enabled at the same time."

  3786. 

  3787. # Disable all the library-specific components if the library itself

  3788. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3789. 

  3790. disable_components(){

  3791.     disabled ${1} && disable $(

  3792.         eval components="\$$(toupper ${1})_COMPONENTS"

  3793.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3794.     )

  3795. }

  3796. 

  3797. map 'disable_components $v' $LIBRARY_LIST

  3798. 

  3799. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3800. set >> $logfile

  3801. 

  3802. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3803. 

  3804. enabled ossfuzz && {

  3805.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3806.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3807. }

  3808. 

  3809. case "$toolchain" in

  3810.     *-asan)

  3811.         cc_default="${toolchain%-asan}"

  3812.         add_cflags  -fsanitize=address

  3813.         add_ldflags -fsanitize=address

  3814.     ;;

  3815.     *-msan)

  3816.         cc_default="${toolchain%-msan}"

  3817.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3818.         add_ldflags -fsanitize=memory

  3819.     ;;

  3820.     *-tsan)

  3821.         cc_default="${toolchain%-tsan}"

  3822.         add_cflags  -fsanitize=thread -fPIE

  3823.         add_ldflags -fsanitize=thread -pie

  3824.         case "$toolchain" in

  3825.             gcc-tsan)

  3826.                 add_cflags  -fPIC

  3827.                 add_ldflags -fPIC

  3828.                 ;;

  3829.         esac

  3830.     ;;

  3831.     *-usan)

  3832.         cc_default="${toolchain%-usan}"

  3833.         add_cflags  -fsanitize=undefined

  3834.         add_ldflags -fsanitize=undefined

  3835.     ;;

  3836.     valgrind-*)

  3837.         target_exec_default="valgrind"

  3838.         case "$toolchain" in

  3839.             valgrind-massif)

  3840.                 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"

  3841.                 ;;

  3842.             valgrind-memcheck)

  3843.                 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"

  3844.                 ;;

  3845.         esac

  3846.     ;;

  3847.     msvc)

  3848.         # Check whether the current MSVC version needs the C99 converter.

  3849.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3850.         # support enough of C99 to build ffmpeg. Default to the new

  3851.         # behaviour if the regexp was unable to match anything, since this

  3852.         # successfully parses the version number of existing supported

  3853.         # versions that require the converter (MSVC 2010 and 2012).

  3854.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3855.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3856.             cc_default="cl"

  3857.             cxx_default="cl"

  3858.         else

  3859.             cc_default="c99wrap cl"

  3860.             cxx_default="c99wrap cl"

  3861.         fi

  3862.         ld_default="$source_path/compat/windows/mslink"

  3863.         nm_default="dumpbin -symbols"

  3864.         ar_default="lib"

  3865.         case "$arch" in

  3866.         aarch64|arm64)

  3867.             as_default="armasm64"

  3868.             ;;

  3869.         arm*)

  3870.             as_default="armasm"

  3871.             ;;

  3872.         esac

  3873.         target_os_default="win32"

  3874.         # Use a relative path for TMPDIR. This makes sure all the

  3875.         # ffconf temp files are written with a relative path, avoiding

  3876.         # issues with msys/win32 path conversion for MSVC parameters

  3877.         # such as -Fo<file> or -out:<file>.

  3878.         TMPDIR=.

  3879.     ;;

  3880.     icl)

  3881.         cc_default="icl"

  3882.         ld_default="xilink"

  3883.         nm_default="dumpbin -symbols"

  3884.         ar_default="xilib"

  3885.         target_os_default="win32"

  3886.         TMPDIR=.

  3887.     ;;

  3888.     gcov)

  3889.         add_cflags  -fprofile-arcs -ftest-coverage

  3890.         add_ldflags -fprofile-arcs -ftest-coverage

  3891.     ;;

  3892.     llvm-cov)

  3893.         add_cflags -fprofile-arcs -ftest-coverage

  3894.         add_ldflags --coverage

  3895.     ;;

  3896.     hardened)

  3897.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3898.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3899.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3900.         add_cflags   -fPIE

  3901.         add_ldexeflags -fPIE -pie

  3902.     ;;

  3903.     ?*)

  3904.         die "Unknown toolchain $toolchain"

  3905.     ;;

  3906. esac

  3907. 

  3908. if test -n "$cross_prefix"; then

  3909.     test -n "$arch" && test -n "$target_os" ||

  3910.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3911.     enable cross_compile

  3912. fi

  3913. 

  3914. ar_default="${cross_prefix}${ar_default}"

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

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

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

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

  3919. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3920.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3921. else

  3922.     ranlib_default="${cross_prefix}${ranlib_default}"

  3923. fi

  3924. strip_default="${cross_prefix}${strip_default}"

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

  3926. 

  3927. sysinclude_default="${sysroot}/usr/include"

  3928. 

  3929. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3930.     target_exec target_os x86asmexe nvcc

  3931. enabled cross_compile || host_cc_default=$cc

  3932. set_default host_cc

  3933. 

  3934. pkg_config_fail_message=""

  3935. if ! $pkg_config --version >/dev/null 2>&1; then

  3936.     warn "$pkg_config not found, library detection may fail."

  3937.     pkg_config=false

  3938. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3939.     pkg_config_fail_message="

  3940. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3941. fi

  3942. 

  3943. if test $doxygen != $doxygen_default && \

  3944.   ! $doxygen --version >/dev/null 2>&1; then

  3945.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3946. fi

  3947. 

  3948. exesuf() {

  3949.     case $1 in

  3950.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3951.     esac

  3952. }

  3953. 

  3954. EXESUF=$(exesuf $target_os)

  3955. HOSTEXESUF=$(exesuf $host_os)

  3956. 

  3957. # set temporary file name

  3958. : ${TMPDIR:=$TEMPDIR}

  3959. : ${TMPDIR:=$TMP}

  3960. : ${TMPDIR:=/tmp}

  3961. 

  3962. if [ -n "$tempprefix" ] ; then

  3963.     mktemp(){

  3964.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3965.         echo "$tmpname"

  3966.         mkdir "$tmpname"

  3967.     }

  3968. elif ! check_cmd mktemp -u XXXXXX; then

  3969.     # simple replacement for missing mktemp

  3970.     # NOT SAFE FOR GENERAL USE

  3971.     mktemp(){

  3972.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3973.         echo "$tmpname"

  3974.         mkdir "$tmpname"

  3975.     }

  3976. fi

  3977. 

  3978. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3979.     die "Unable to create temporary directory in $TMPDIR."

  3980. 

  3981. tmpfile(){

  3982.     tmp="${FFTMPDIR}/test"$2

  3983.     (set -C; exec > $tmp) 2> /dev/null ||

  3984.         die "Unable to create temporary file in $FFTMPDIR."

  3985.     eval $1=$tmp

  3986. }

  3987. 

  3988. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3989. trap 'exit 2' INT

  3990. 

  3991. tmpfile TMPASM .asm

  3992. tmpfile TMPC   .c

  3993. tmpfile TMPCPP .cpp

  3994. tmpfile TMPE   $EXESUF

  3995. tmpfile TMPH   .h

  3996. tmpfile TMPM   .m

  3997. tmpfile TMPO   .o

  3998. tmpfile TMPS   .S

  3999. tmpfile TMPSH  .sh

  4000. tmpfile TMPV   .ver

  4001. 

  4002. unset -f mktemp

  4003. 

  4004. chmod +x $TMPE

  4005. 

  4006. # make sure we can execute files in $TMPDIR

  4007. cat > $TMPSH 2>> $logfile <<EOF

  4008. #! /bin/sh

  4009. EOF

  4010. chmod +x $TMPSH >> $logfile 2>&1

  4011. if ! $TMPSH >> $logfile 2>&1; then

  4012.     cat <<EOF

  4013. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  4014. variable to another directory and make sure that it is not mounted noexec.

  4015. EOF

  4016.     die "Sanity test failed."

  4017. fi

  4018. 

  4019. armasm_flags(){

  4020.     for flag; do

  4021.         case $flag in

  4022.             # Filter out MSVC cl.exe options from cflags that shouldn't

  4023.             # be passed to gas-preprocessor

  4024.             -M[TD]*)                                            ;;

  4025.             *)                  echo $flag                      ;;

  4026.         esac

  4027.    done

  4028. }

  4029. 

  4030. cparser_flags(){

  4031.     for flag; do

  4032.         case $flag in

  4033.             -Wno-switch)             echo -Wno-switch-enum ;;

  4034.             -Wno-format-zero-length) ;;

  4035.             -Wdisabled-optimization) ;;

  4036.             -Wno-pointer-sign)       echo -Wno-other ;;

  4037.             *)                       echo $flag ;;

  4038.         esac

  4039.     done

  4040. }

  4041. 

  4042. msvc_common_flags(){

  4043.     for flag; do

  4044.         case $flag in

  4045.             # In addition to specifying certain flags under the compiler

  4046.             # specific filters, they must be specified here as well or else the

  4047.             # generic catch all at the bottom will print the original flag.

  4048.             -Wall)                ;;

  4049.             -Wextra)              ;;

  4050.             -std=c99)             ;;

  4051.             # Common flags

  4052.             -fomit-frame-pointer) ;;

  4053.             -g)                   echo -Z7 ;;

  4054.             -fno-math-errno)      ;;

  4055.             -fno-common)          ;;

  4056.             -fno-signed-zeros)    ;;

  4057.             -fPIC)                ;;

  4058.             -mthumb)              ;;

  4059.             -march=*)             ;;

  4060.             -lz)                  echo zlib.lib ;;

  4061.             -lx264)               echo libx264.lib ;;

  4062.             -lstdc++)             ;;

  4063.             -l*)                  echo ${flag#-l}.lib ;;

  4064.             -LARGEADDRESSAWARE)   echo $flag ;;

  4065.             -L*)                  echo -libpath:${flag#-L} ;;

  4066.             *)                    echo $flag ;;

  4067.         esac

  4068.     done

  4069. }

  4070. 

  4071. msvc_flags(){

  4072.     msvc_common_flags "$@"

  4073.     for flag; do

  4074.         case $flag in

  4075.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4076.                                        -wd4554 ;;

  4077.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4078.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4079.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4080.                                        -wd4307 \

  4081.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4082.         esac

  4083.     done

  4084. }

  4085. 

  4086. icl_flags(){

  4087.     msvc_common_flags "$@"

  4088.     for flag; do

  4089.         case $flag in

  4090.             # Despite what Intel's documentation says -Wall, which is supported

  4091.             # on Windows, does enable remarks so disable them here.

  4092.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4093.             -std=c99)             echo -Qstd=c99 ;;

  4094.             -flto)                echo -ipo ;;

  4095.         esac

  4096.     done

  4097. }

  4098. 

  4099. icc_flags(){

  4100.     for flag; do

  4101.         case $flag in

  4102.             -flto)                echo -ipo ;;

  4103.             *)                    echo $flag ;;

  4104.         esac

  4105.     done

  4106. }

  4107. 

  4108. suncc_flags(){

  4109.     for flag; do

  4110.         case $flag in

  4111.             -march=*|-mcpu=*)

  4112.                 case "${flag#*=}" in

  4113.                     native)                   echo -xtarget=native       ;;

  4114.                     v9|niagara)               echo -xarch=sparc          ;;

  4115.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4116.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4117.                     i586|pentium)             echo -xchip=pentium        ;;

  4118.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4119.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4120.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4121.                     pentium4*)          echo -xtarget=pentium4           ;;

  4122.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4123.                     *-sse3)             echo -xarch=sse3                 ;;

  4124.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4125.                     bonnell)                   echo -xarch=ssse3         ;;

  4126.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4127.                     westmere)                  echo -xtarget=westmere    ;;

  4128.                     silvermont)                echo -xarch=sse4_2        ;;

  4129.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4130.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4131.                                                echo -xarch=avx           ;;

  4132.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4133.                     btver1)                    echo -xarch=amdsse4a      ;;

  4134.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4135.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4136.                     k8|opteron|athlon64|athlon-fx)

  4137.                                                echo -xarch=sse2a         ;;

  4138.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4139.                 esac

  4140.                 ;;

  4141.             -std=c99)             echo -xc99              ;;

  4142.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4143.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4144.             -W*,*)                echo $flag              ;;

  4145.             -f*-*|-W*|-mimpure-text)                      ;;

  4146.             -shared)              echo -G                 ;;

  4147.             *)                    echo $flag              ;;

  4148.         esac

  4149.     done

  4150. }

  4151. 

  4152. probe_cc(){

  4153.     pfx=$1

  4154.     _cc=$2

  4155.     first=$3

  4156. 

  4157.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4158.     unset _ld_o _ldflags _ld_lib _ld_path

  4159.     unset _depflags _DEPCMD _DEPFLAGS

  4160.     _flags_filter=echo

  4161. 

  4162.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4163.         true # no-op to avoid reading stdin in following checks

  4164.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4165.         _type=llvm_gcc

  4166.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4167.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4168.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4169.         _cflags_speed='-O3'

  4170.         _cflags_size='-Os'

  4171.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4172.         _type=gcc

  4173.         gcc_version=$($_cc --version | head -n1)

  4174.         gcc_basever=$($_cc -dumpversion)

  4175.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4176.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4177.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4178.         case $gcc_basever in

  4179.             2) ;;

  4180.             2.*) ;;

  4181.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4182.         esac

  4183.         if [ "$first" = true ]; then

  4184.             case $gcc_basever in

  4185.                 4.2*)

  4186.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4187.             esac

  4188.         fi

  4189.         _cflags_speed='-O3'

  4190.         _cflags_size='-Os'

  4191.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4192.         _type=icc

  4193.         _ident=$($_cc --version | head -n1)

  4194.         _depflags='-MMD'

  4195.         _cflags_speed='-O3'

  4196.         _cflags_size='-Os'

  4197.         _cflags_noopt='-O1'

  4198.         _flags_filter=icc_flags

  4199.     elif $_cc -v 2>&1 | grep -q xlc; then

  4200.         _type=xlc

  4201.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4202.         _cflags_speed='-O5'

  4203.         _cflags_size='-O5 -qcompact'

  4204.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4205.         test -d "$sysroot" || die "No valid sysroot specified."

  4206.         _type=armcc

  4207.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4208.         armcc_conf="$PWD/armcc.conf"

  4209.         $_cc --arm_linux_configure                 \

  4210.              --arm_linux_config_file="$armcc_conf" \

  4211.              --configure_sysroot="$sysroot"        \

  4212.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4213.              die "Error creating armcc configuration file."

  4214.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4215.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4216.         as_default="${cross_prefix}gcc"

  4217.         _depflags='-MMD'

  4218.         _cflags_speed='-O3'

  4219.         _cflags_size='-Os'

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

  4221.         _type=clang

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

  4223.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4224.         _cflags_speed='-O3'

  4225.         _cflags_size='-Oz'

  4226.     elif $_cc -V 2>&1 | grep -q Sun; then

  4227.         _type=suncc

  4228.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4229.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4230.         _DEPFLAGS='-xM1 -xc99'

  4231.         _ldflags='-std=c99'

  4232.         _cflags_speed='-O5'

  4233.         _cflags_size='-O5 -xspace'

  4234.         _flags_filter=suncc_flags

  4235.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4236.         _type=pathscale

  4237.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4238.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4239.         _cflags_speed='-O2'

  4240.         _cflags_size='-Os'

  4241.         _flags_filter='filter_out -Wdisabled-optimization'

  4242.     elif $_cc -v 2>&1 | grep -q Open64; then

  4243.         _type=open64

  4244.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4245.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4246.         _cflags_speed='-O2'

  4247.         _cflags_size='-Os'

  4248.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4249.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4250.         _type=armasm

  4251.         _ident=$($_cc | head -n1)

  4252.         # 4509: "This form of conditional instruction is deprecated"

  4253.         _flags="-nologo -ignore 4509"

  4254.         _flags_filter=armasm_flags

  4255.     elif $_cc 2>&1 | grep -q Intel; then

  4256.         _type=icl

  4257.         _ident=$($_cc 2>&1 | head -n1)

  4258.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4259.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4260.         # versions (tested) as well.

  4261.         _cflags_speed="-O2"

  4262.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4263.         if $_cc 2>&1 | grep -q Linker; then

  4264.             _ld_o='-out:$@'

  4265.         else

  4266.             _ld_o='-Fe$@'

  4267.         fi

  4268.         _cc_o='-Fo$@'

  4269.         _cc_e='-P'

  4270.         _flags_filter=icl_flags

  4271.         _ld_lib='lib%.a'

  4272.         _ld_path='-libpath:'

  4273.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4274.         _flags='-nologo -Qdiag-error:4044,10157'

  4275.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4276.         # with MSVC which enables it by default.

  4277.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4278.         disable stripping

  4279.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4280.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4281.         # the -? parameter gives the help output which contains an identifyable

  4282.         # string, while it gives an error in other modes.

  4283.         _type=lld-link

  4284.         # The link.exe mode doesn't have a switch for getting the version,

  4285.         # but we can force it back to gnu mode and get the version from there.

  4286.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4287.         _ld_o='-out:$@'

  4288.         _flags_filter=msvc_flags

  4289.         _ld_lib='lib%.a'

  4290.         _ld_path='-libpath:'

  4291.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4292.         _type=msvc

  4293.         _ident=$($_cc 2>&1 | head -n1)

  4294.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4295.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4296.         _cflags_speed="-O2"

  4297.         _cflags_size="-O1"

  4298.         _cflags_noopt="-O1"

  4299.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4300.             _ld_o='-out:$@'

  4301.         else

  4302.             _ld_o='-Fe$@'

  4303.         fi

  4304.         _cc_o='-Fo$@'

  4305.         _cc_e='-P -Fi$@'

  4306.         _flags_filter=msvc_flags

  4307.         _ld_lib='lib%.a'

  4308.         _ld_path='-libpath:'

  4309.         _flags='-nologo'

  4310.         disable stripping

  4311.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4312.         _type=cparser

  4313.         _ident=$($_cc --version | head -n1)

  4314.         _depflags='-MMD'

  4315.         _cflags_speed='-O4'

  4316.         _cflags_size='-O2'

  4317.         _flags_filter=cparser_flags

  4318.     fi

  4319. 

  4320.     eval ${pfx}_type=\$_type

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

  4322. }

  4323. 

  4324. set_ccvars(){

  4325.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4326.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4327.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4328. 

  4329.     if [ -n "$_depflags" ]; then

  4330.         eval ${1}_DEPFLAGS=\$_depflags

  4331.     else

  4332.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4333.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4334.         eval DEP${1}FLAGS=\$_flags

  4335.     fi

  4336. }

  4337. 

  4338. probe_cc cc "$cc" "true"

  4339. cflags_filter=$_flags_filter

  4340. cflags_speed=$_cflags_speed

  4341. cflags_size=$_cflags_size

  4342. cflags_noopt=$_cflags_noopt

  4343. add_cflags $_flags $_cflags

  4344. cc_ldflags=$_ldflags

  4345. set_ccvars CC

  4346. set_ccvars CXX

  4347. 

  4348. probe_cc hostcc "$host_cc"

  4349. host_cflags_filter=$_flags_filter

  4350. host_cflags_speed=$_cflags_speed

  4351. add_host_cflags  $_flags $_cflags

  4352. set_ccvars HOSTCC

  4353. 

  4354. test -n "$cc_type" && enable $cc_type ||

  4355.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4356. 

  4357. : ${as_default:=$cc}

  4358. : ${objcc_default:=$cc}

  4359. : ${dep_cc_default:=$cc}

  4360. : ${ld_default:=$cc}

  4361. : ${host_ld_default:=$host_cc}

  4362. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4363. 

  4364. probe_cc as "$as"

  4365. asflags_filter=$_flags_filter

  4366. add_asflags $_flags $_cflags

  4367. set_ccvars AS

  4368. 

  4369. probe_cc objcc "$objcc"

  4370. objcflags_filter=$_flags_filter

  4371. add_objcflags $_flags $_cflags

  4372. set_ccvars OBJC

  4373. 

  4374. probe_cc ld "$ld"

  4375. ldflags_filter=$_flags_filter

  4376. add_ldflags $_flags $_ldflags

  4377. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4378. LD_O=${_ld_o-$LD_O}

  4379. LD_LIB=${_ld_lib-$LD_LIB}

  4380. LD_PATH=${_ld_path-$LD_PATH}

  4381. 

  4382. probe_cc hostld "$host_ld"

  4383. host_ldflags_filter=$_flags_filter

  4384. add_host_ldflags $_flags $_ldflags

  4385. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4386. 

  4387. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4388.     probe_cc depcc "$dep_cc"

  4389.     CCDEP=${_DEPCMD:-$DEPCMD}

  4390.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4391.     DEPCCFLAGS=$_flags

  4392. fi

  4393. 

  4394. if $ar 2>&1 | grep -q Microsoft; then

  4395.     arflags="-nologo"

  4396.     ar_o='-out:$@'

  4397. elif $ar 2>&1 | grep -q "\[D\] "; then

  4398.     arflags="rcD"

  4399.     ar_o='$@'

  4400. else

  4401.     arflags="rc"

  4402.     ar_o='$@'

  4403. fi

  4404. 

  4405. add_cflags $extra_cflags

  4406. add_cxxflags $extra_cxxflags

  4407. add_objcflags $extra_objcflags

  4408. add_asflags $extra_cflags

  4409. 

  4410. if test -n "$sysroot"; then

  4411.     case "$cc_type" in

  4412.         gcc|llvm_gcc|clang)

  4413.             add_cppflags --sysroot="$sysroot"

  4414.             add_ldflags --sysroot="$sysroot"

  4415.         ;;

  4416.     esac

  4417. fi

  4418. 

  4419. if test "$cpu" = host; then

  4420.     enabled cross_compile &&

  4421.         die "--cpu=host makes no sense when cross-compiling."

  4422. 

  4423.     case "$cc_type" in

  4424.         gcc|llvm_gcc)

  4425.             check_native(){

  4426.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4427.                 sed -n "/cc1.*$1=/{

  4428.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4429.                             p

  4430.                             q

  4431.                         }" $TMPE

  4432.             }

  4433.             cpu=$(check_native -march || check_native -mcpu)

  4434.         ;;

  4435.         clang)

  4436.             check_native(){

  4437.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4438.                 sed -n "/cc1.*-target-cpu /{

  4439.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4440.                             p

  4441.                             q

  4442.                         }" $TMPE

  4443.             }

  4444.             cpu=$(check_native -march)

  4445.         ;;

  4446.     esac

  4447. 

  4448.     test "${cpu:-host}" = host &&

  4449.         die "--cpu=host not supported with compiler $cc"

  4450. fi

  4451. 

  4452. # Deal with common $arch aliases

  4453. case "$arch" in

  4454.     aarch64|arm64)

  4455.         arch="aarch64"

  4456.     ;;

  4457.     arm*|iPad*|iPhone*)

  4458.         arch="arm"

  4459.     ;;

  4460.     mips*|IP*)

  4461.         case "$arch" in

  4462.         *el)

  4463.             add_cppflags -EL

  4464.             add_ldflags -EL

  4465.         ;;

  4466.         *eb)

  4467.             add_cppflags -EB

  4468.             add_ldflags -EB

  4469.         ;;

  4470.         esac

  4471.         arch="mips"

  4472.     ;;

  4473.     parisc*|hppa*)

  4474.         arch="parisc"

  4475.     ;;

  4476.     "Power Macintosh"|ppc*|powerpc*)

  4477.         arch="ppc"

  4478.     ;;

  4479.     s390|s390x)

  4480.         arch="s390"

  4481.     ;;

  4482.     sh4|sh)

  4483.         arch="sh4"

  4484.     ;;

  4485.     sun4*|sparc*)

  4486.         arch="sparc"

  4487.     ;;

  4488.     tilegx|tile-gx)

  4489.         arch="tilegx"

  4490.     ;;

  4491.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4492.         arch="x86"

  4493.     ;;

  4494. esac

  4495. 

  4496. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4497. enable $arch

  4498. 

  4499. # Add processor-specific flags

  4500. if enabled aarch64; then

  4501. 

  4502.     case $cpu in

  4503.         armv*)

  4504.             cpuflags="-march=$cpu"

  4505.         ;;

  4506.         *)

  4507.             cpuflags="-mcpu=$cpu"

  4508.         ;;

  4509.     esac

  4510. 

  4511. elif enabled alpha; then

  4512. 

  4513.     cpuflags="-mcpu=$cpu"

  4514. 

  4515. elif enabled arm; then

  4516. 

  4517.     check_arm_arch() {

  4518.         check_cpp_condition stddef.h \

  4519.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4520.             $cpuflags

  4521.     }

  4522. 

  4523.     probe_arm_arch() {

  4524.         if   check_arm_arch 4;        then echo armv4

  4525.         elif check_arm_arch 4T;       then echo armv4t

  4526.         elif check_arm_arch 5;        then echo armv5

  4527.         elif check_arm_arch 5E;       then echo armv5e

  4528.         elif check_arm_arch 5T;       then echo armv5t

  4529.         elif check_arm_arch 5TE;      then echo armv5te

  4530.         elif check_arm_arch 5TEJ;     then echo armv5te

  4531.         elif check_arm_arch 6;        then echo armv6

  4532.         elif check_arm_arch 6J;       then echo armv6j

  4533.         elif check_arm_arch 6K;       then echo armv6k

  4534.         elif check_arm_arch 6Z;       then echo armv6z

  4535.         elif check_arm_arch 6ZK;      then echo armv6zk

  4536.         elif check_arm_arch 6T2;      then echo armv6t2

  4537.         elif check_arm_arch 7;        then echo armv7

  4538.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4539.         elif check_arm_arch 7S;       then echo armv7-a

  4540.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4541.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4542.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4543.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4544.         fi

  4545.     }

  4546. 

  4547.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4548. 

  4549.     case $cpu in

  4550.         armv*)

  4551.             cpuflags="-march=$cpu"

  4552.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4553.         ;;

  4554.         *)

  4555.             cpuflags="-mcpu=$cpu"

  4556.             case $cpu in

  4557.                 cortex-a*)                               subarch=armv7a  ;;

  4558.                 cortex-r*)                               subarch=armv7r  ;;

  4559.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4560.                 arm11*)                                  subarch=armv6   ;;

  4561.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4562.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4563.                 *)                             subarch=$(probe_arm_arch) ;;

  4564.             esac

  4565.         ;;

  4566.     esac

  4567. 

  4568.     case "$subarch" in

  4569.         armv5t*)    enable fast_clz                ;;

  4570.         armv[6-8]*)

  4571.             enable fast_clz

  4572.             disabled fast_unaligned || enable fast_unaligned

  4573.             ;;

  4574.     esac

  4575. 

  4576. elif enabled avr32; then

  4577. 

  4578.     case $cpu in

  4579.         ap7[02]0[0-2])

  4580.             subarch="avr32_ap"

  4581.             cpuflags="-mpart=$cpu"

  4582.         ;;

  4583.         ap)

  4584.             subarch="avr32_ap"

  4585.             cpuflags="-march=$cpu"

  4586.         ;;

  4587.         uc3[ab]*)

  4588.             subarch="avr32_uc"

  4589.             cpuflags="-mcpu=$cpu"

  4590.         ;;

  4591.         uc)

  4592.             subarch="avr32_uc"

  4593.             cpuflags="-march=$cpu"

  4594.         ;;

  4595.     esac

  4596. 

  4597. elif enabled bfin; then

  4598. 

  4599.     cpuflags="-mcpu=$cpu"

  4600. 

  4601. elif enabled mips; then

  4602. 

  4603.     cpuflags="-march=$cpu"

  4604. 

  4605.     if [ "$cpu" != "generic" ]; then

  4606.         disable mips32r2

  4607.         disable mips32r5

  4608.         disable mips64r2

  4609.         disable mips32r6

  4610.         disable mips64r6

  4611.         disable loongson2

  4612.         disable loongson3

  4613. 

  4614.         case $cpu in

  4615.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4616.                 enable mips32r2

  4617.                 disable msa

  4618.             ;;

  4619.             p5600|i6400|p6600)

  4620.                 disable mipsdsp

  4621.                 disable mipsdspr2

  4622.             ;;

  4623.             loongson*)

  4624.                 enable loongson2

  4625.                 enable loongson3

  4626.                 enable local_aligned

  4627.                 enable simd_align_16

  4628.                 enable fast_64bit

  4629.                 enable fast_clz

  4630.                 enable fast_cmov

  4631.                 enable fast_unaligned

  4632.                 disable aligned_stack

  4633.                 disable mipsfpu

  4634.                 disable mipsdsp

  4635.                 disable mipsdspr2

  4636.                 case $cpu in

  4637.                     loongson3*)

  4638.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4639.                     ;;

  4640.                     loongson2e)

  4641.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4642.                     ;;

  4643.                     loongson2f)

  4644.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4645.                     ;;

  4646.                 esac

  4647.             ;;

  4648.             *)

  4649.                 # Unknown CPU. Disable everything.

  4650.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4651.                 disable mipsfpu

  4652.                 disable mipsdsp

  4653.                 disable mipsdspr2

  4654.                 disable msa

  4655.                 disable mmi

  4656.             ;;

  4657.         esac

  4658. 

  4659.         case $cpu in

  4660.             24kc)

  4661.                 disable mipsfpu

  4662.                 disable mipsdsp

  4663.                 disable mipsdspr2

  4664.             ;;

  4665.             24kf*)

  4666.                 disable mipsdsp

  4667.                 disable mipsdspr2

  4668.             ;;

  4669.             24kec|34kc|1004kc)

  4670.                 disable mipsfpu

  4671.                 disable mipsdspr2

  4672.             ;;

  4673.             24kef*|34kf*|1004kf*)

  4674.                 disable mipsdspr2

  4675.             ;;

  4676.             74kc)

  4677.                 disable mipsfpu

  4678.             ;;

  4679.             p5600)

  4680.                 enable mips32r5

  4681.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4682.             ;;

  4683.             i6400)

  4684.                 enable mips64r6

  4685.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4686.             ;;

  4687.             p6600)

  4688.                 enable mips64r6

  4689.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4690.             ;;

  4691.         esac

  4692.     else

  4693.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4694.         warn 'generic cpu selected'

  4695.     fi

  4696. 

  4697. elif enabled ppc; then

  4698. 

  4699.     disable ldbrx

  4700. 

  4701.     case $(tolower $cpu) in

  4702.         601|ppc601|powerpc601)

  4703.             cpuflags="-mcpu=601"

  4704.             disable altivec

  4705.         ;;

  4706.         603*|ppc603*|powerpc603*)

  4707.             cpuflags="-mcpu=603"

  4708.             disable altivec

  4709.         ;;

  4710.         604*|ppc604*|powerpc604*)

  4711.             cpuflags="-mcpu=604"

  4712.             disable altivec

  4713.         ;;

  4714.         g3|75*|ppc75*|powerpc75*)

  4715.             cpuflags="-mcpu=750"

  4716.             disable altivec

  4717.         ;;

  4718.         g4|745*|ppc745*|powerpc745*)

  4719.             cpuflags="-mcpu=7450"

  4720.             disable vsx

  4721.         ;;

  4722.         74*|ppc74*|powerpc74*)

  4723.             cpuflags="-mcpu=7400"

  4724.             disable vsx

  4725.         ;;

  4726.         g5|970|ppc970|powerpc970)

  4727.             cpuflags="-mcpu=970"

  4728.             disable vsx

  4729.         ;;

  4730.         power[3-6]*)

  4731.             cpuflags="-mcpu=$cpu"

  4732.             disable vsx

  4733.         ;;

  4734.         power[7-8]*)

  4735.             cpuflags="-mcpu=$cpu"

  4736.         ;;

  4737.         cell)

  4738.             cpuflags="-mcpu=cell"

  4739.             enable ldbrx

  4740.             disable vsx

  4741.         ;;

  4742.         e500mc)

  4743.             cpuflags="-mcpu=e500mc"

  4744.             disable altivec

  4745.         ;;

  4746.         e500v2)

  4747.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4748.             disable altivec

  4749.             disable dcbzl

  4750.         ;;

  4751.         e500)

  4752.             cpuflags="-mcpu=8540 -mhard-float"

  4753.             disable altivec

  4754.             disable dcbzl

  4755.         ;;

  4756.     esac

  4757. 

  4758. elif enabled sparc; then

  4759. 

  4760.     case $cpu in

  4761.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4762.             cpuflags="-mcpu=$cpu"

  4763.         ;;

  4764.         ultrasparc*|niagara[234])

  4765.             cpuflags="-mcpu=$cpu"

  4766.         ;;

  4767.     esac

  4768. 

  4769. elif enabled x86; then

  4770. 

  4771.     case $cpu in

  4772.         i[345]86|pentium)

  4773.             cpuflags="-march=$cpu"

  4774.             disable i686

  4775.             disable mmx

  4776.         ;;

  4777.         # targets that do NOT support nopl and conditional mov (cmov)

  4778.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4779.             cpuflags="-march=$cpu"

  4780.             disable i686

  4781.         ;;

  4782.         # targets that do support nopl and conditional mov (cmov)

  4783.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4784.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4785.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4786.             cpuflags="-march=$cpu"

  4787.             enable i686

  4788.             enable fast_cmov

  4789.         ;;

  4790.         # targets that do support conditional mov but on which it's slow

  4791.         pentium4|pentium4m|prescott|nocona)

  4792.             cpuflags="-march=$cpu"

  4793.             enable i686

  4794.             disable fast_cmov

  4795.         ;;

  4796.     esac

  4797. 

  4798. fi

  4799. 

  4800. if [ "$cpu" != generic ]; then

  4801.     add_cflags  $cpuflags

  4802.     add_asflags $cpuflags

  4803.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4804. fi

  4805. 

  4806. # compiler sanity check

  4807. check_exec <<EOF

  4808. int main(void){ return 0; }

  4809. EOF

  4810. if test "$?" != 0; then

  4811.     echo "$cc is unable to create an executable file."

  4812.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4813.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4814.         echo "Only do this if you know what cross compiling means."

  4815.     fi

  4816.     die "C compiler test failed."

  4817. fi

  4818. 

  4819. add_cppflags -D_ISOC99_SOURCE

  4820. add_cxxflags -D__STDC_CONSTANT_MACROS

  4821. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4822. 

  4823. # some compilers silently accept -std=c11, so we also need to check that the

  4824. # version macro is defined properly

  4825. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4826.     add_cflags -std=c11 ||

  4827.     check_cflags -std=c99

  4828. 

  4829. check_cppflags -D_FILE_OFFSET_BITS=64

  4830. check_cppflags -D_LARGEFILE_SOURCE

  4831. 

  4832. add_host_cppflags -D_ISOC99_SOURCE

  4833. check_host_cflags -std=c99

  4834. check_host_cflags -Wall

  4835. check_host_cflags $host_cflags_speed

  4836. 

  4837. check_64bit(){

  4838.     arch32=$1

  4839.     arch64=$2

  4840.     expr=$3

  4841.     check_code cc "" "int test[2*($expr) - 1]" &&

  4842.         subarch=$arch64 || subarch=$arch32

  4843.     enable $subarch

  4844. }

  4845. 

  4846. case "$arch" in

  4847.     aarch64|alpha|ia64)

  4848.         enabled shared && enable_weak pic

  4849.     ;;

  4850.     mips)

  4851.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4852.         enabled shared && enable_weak pic

  4853.     ;;

  4854.     parisc)

  4855.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4856.         enabled shared && enable_weak pic

  4857.     ;;

  4858.     ppc)

  4859.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4860.         enabled shared && enable_weak pic

  4861.     ;;

  4862.     s390)

  4863.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4864.         enabled shared && enable_weak pic

  4865.     ;;

  4866.     sparc)

  4867.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4868.         enabled shared && enable_weak pic

  4869.     ;;

  4870.     x86)

  4871.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4872.         # Treat x32 as x64 for now. Note it also needs pic if shared

  4873.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4874.             subarch=x86_64 && enable x86_64 && disable x86_32

  4875.         if enabled x86_64; then

  4876.             enabled shared && enable_weak pic

  4877.             objformat=elf64

  4878.         fi

  4879.     ;;

  4880. esac

  4881. 

  4882. # OS specific

  4883. case $target_os in

  4884.     aix)

  4885.         SHFLAGS=-shared

  4886.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4887.         enabled shared && add_ldflags -Wl,-brtl

  4888.         arflags='-Xany -r -c'

  4889.         ;;

  4890.     android)

  4891.         disable symver

  4892.         enable section_data_rel_ro

  4893.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4894.         SLIB_INSTALL_LINKS=

  4895.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4896.         ;;

  4897.     haiku)

  4898.         prefix_default="/boot/common"

  4899.         network_extralibs="-lnetwork"

  4900.         host_extralibs=

  4901.         ;;

  4902.     sunos)

  4903.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4904.         enabled x86 && append SHFLAGS -mimpure-text

  4905.         network_extralibs="-lsocket -lnsl"

  4906.         add_cppflags -D__EXTENSIONS__

  4907.         # When using suncc to build, the Solaris linker will mark

  4908.         # an executable with each instruction set encountered by

  4909.         # the Solaris assembler.  As our libraries contain their own

  4910.         # guards for processor-specific code, instead suppress

  4911.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4912.         enabled_all suncc x86 &&

  4913.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4914.             add_ldflags -Wl,-M,mapfile

  4915.         nm_default='nm -P -g'

  4916.         version_script='-M'

  4917.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4918.         ;;

  4919.     netbsd)

  4920.         disable symver

  4921.         oss_indev_extralibs="-lossaudio"

  4922.         oss_outdev_extralibs="-lossaudio"

  4923.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4924.         ;;

  4925.     openbsd|bitrig)

  4926.         disable symver

  4927.         SHFLAGS='-shared'

  4928.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4929.         SLIB_INSTALL_LINKS=

  4930.         oss_indev_extralibs="-lossaudio"

  4931.         oss_outdev_extralibs="-lossaudio"

  4932.         ;;

  4933.     dragonfly)

  4934.         disable symver

  4935.         ;;

  4936.     freebsd)

  4937.         ;;

  4938.     bsd/os)

  4939.         add_extralibs -lpoll -lgnugetopt

  4940.         strip="strip -d"

  4941.         ;;

  4942.     darwin)

  4943.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4944.         install_name_dir_default='$(SHLIBDIR)'

  4945.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4946.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4947.         strip="${strip} -x"

  4948.         add_ldflags -Wl,-dynamic,-search_paths_first

  4949.         check_cflags -Werror=partial-availability

  4950.         SLIBSUF=".dylib"

  4951.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4952.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4953.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4954.         enabled_any pic shared x86_64 ||

  4955.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4956.         check_header dispatch/dispatch.h &&

  4957.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4958.         if test -n "$sysroot"; then

  4959.             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot

  4960.             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot

  4961.         fi

  4962.         version_script='-exported_symbols_list'

  4963.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4964.         ;;

  4965.     msys*)

  4966.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4967.         ;;

  4968.     mingw32*|mingw64*)

  4969.         target_os=mingw32

  4970.         if enabled shared; then

  4971.             # Cannot build both shared and static libs when using dllimport.

  4972.             disable static

  4973.         fi

  4974.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4975.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4976.         shlibdir_default="$bindir_default"

  4977.         SLIBPREF=""

  4978.         SLIBSUF=".dll"

  4979.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4980.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4981.         SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4982.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4983.         SLIB_INSTALL_LINKS=

  4984.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4985.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4986.         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)'

  4987.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'

  4988.         enabled x86_64 && objformat="win64" || objformat="win32"

  4989.         ranlib=:

  4990.         enable dos_paths

  4991.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4992.         # Lets work around some stupidity in binutils.

  4993.         # ld will strip relocations from executables even though we need them

  4994.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4995.         # however ld then forgets what the entry point should be (oops) so we

  4996.         # have to manually (re)set it.

  4997.         if enabled x86_32; then

  4998.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4999.         elif enabled x86_64; then

  5000.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  5001.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  5002.             # Set image base >4GB for extra entropy with HEASLR

  5003.             add_ldexeflags -Wl,--image-base,0x140000000

  5004.             append SHFLAGS -Wl,--image-base,0x180000000

  5005.         fi

  5006.         ;;

  5007.     win32|win64)

  5008.         disable symver

  5009.         if enabled shared; then

  5010.             # Link to the import library instead of the normal static library

  5011.             # for shared libs.

  5012.             LD_LIB='%.lib'

  5013.             # Cannot build both shared and static libs with MSVC or icl.

  5014.             disable static

  5015.         fi

  5016.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5017.         shlibdir_default="$bindir_default"

  5018.         SLIBPREF=""

  5019.         SLIBSUF=".dll"

  5020.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5021.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5022.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5023.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5024.         SLIB_INSTALL_LINKS=

  5025.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5026.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5027.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5028.         enabled x86_64 && objformat="win64" || objformat="win32"

  5029.         ranlib=:

  5030.         enable dos_paths

  5031.         ;;

  5032.     cygwin*)

  5033.         target_os=cygwin

  5034.         shlibdir_default="$bindir_default"

  5035.         SLIBPREF="cyg"

  5036.         SLIBSUF=".dll"

  5037.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5038.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5039.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5040.         SLIB_INSTALL_LINKS=

  5041.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5042.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5043.         enabled x86_64 && objformat="win64" || objformat="win32"

  5044.         enable dos_paths

  5045.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5046.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5047.         ;;

  5048.     *-dos|freedos|opendos)

  5049.         network_extralibs="-lsocket"

  5050.         objformat="coff"

  5051.         enable dos_paths

  5052.         add_cppflags -U__STRICT_ANSI__

  5053.         ;;

  5054.     linux)

  5055.         enable section_data_rel_ro

  5056.         enabled_any arm aarch64 && enable_weak linux_perf

  5057.         ;;

  5058.     irix*)

  5059.         target_os=irix

  5060.         ranlib="echo ignoring ranlib"

  5061.         ;;

  5062.     os/2*)

  5063.         strip="lxlite -CS"

  5064.         striptype=""

  5065.         objformat="aout"

  5066.         add_cppflags -D_GNU_SOURCE

  5067.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5068.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5069.         LIBSUF="_s.a"

  5070.         SLIBPREF=""

  5071.         SLIBSUF=".dll"

  5072.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5073.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5074.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5075.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5076.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5077.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5078.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5079.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5080.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5081.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5082.         SLIB_INSTALL_LINKS=

  5083.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5084.         enable dos_paths

  5085.         enable_weak os2threads

  5086.         ;;

  5087.     gnu/kfreebsd)

  5088.         add_cppflags -D_BSD_SOURCE

  5089.         ;;

  5090.     gnu)

  5091.         ;;

  5092.     qnx)

  5093.         add_cppflags -D_QNX_SOURCE

  5094.         network_extralibs="-lsocket"

  5095.         ;;

  5096.     symbian)

  5097.         SLIBSUF=".dll"

  5098.         enable dos_paths

  5099.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5100.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5101.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5102.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5103.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5104.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5105.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5106.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5107.         ;;

  5108.     minix)

  5109.         ;;

  5110.     none)

  5111.         ;;

  5112.     *)

  5113.         die "Unknown OS '$target_os'."

  5114.         ;;

  5115. esac

  5116. 

  5117. # test if creating links works

  5118. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5119. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5120. mkdir "$link_dest"

  5121. $ln_s "$link_dest" "$link_name"

  5122. touch "$link_dest/test_file"

  5123. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5124.     # create link to source path

  5125.     [ -e src ] && rm src

  5126.     $ln_s "$source_path" src

  5127.     source_link=src

  5128. else

  5129.     # creating directory links doesn't work

  5130.     # fall back to using the full source path

  5131.     source_link="$source_path"

  5132. fi

  5133. # cleanup

  5134. rm -r "$link_dest"

  5135. rm -r "$link_name"

  5136. 

  5137. # determine libc flavour

  5138. 

  5139. probe_libc(){

  5140.     pfx=$1

  5141.     pfx_no_=${pfx%_}

  5142.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5143.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5144.         eval ${pfx}libc_type=uclibc

  5145.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5146.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5147.         eval ${pfx}libc_type=glibc

  5148.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5149.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5150.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5151.         eval ${pfx}libc_type=newlib

  5152.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5153.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5154.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5155.         eval ${pfx}libc_type=mingw64

  5156.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5157.             add_compat msvcrt/snprintf.o

  5158.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5159.         fi

  5160.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5161.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5162.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5163.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5164.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5165.         eval ${pfx}libc_type=mingw32

  5166.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5167.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5168.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5169.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5170.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5171.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5172.         check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&

  5173.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5174.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5175.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5176.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5177.         eval ${pfx}libc_type=msvcrt

  5178.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5179.             if [ "$pfx" = host_ ]; then

  5180.                 add_host_cppflags -Dsnprintf=_snprintf

  5181.             else

  5182.                 add_compat strtod.o strtod=avpriv_strtod

  5183.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5184.                                              _snprintf=avpriv_snprintf  \

  5185.                                              vsnprintf=avpriv_vsnprintf

  5186.             fi

  5187.         fi

  5188.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5189.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5190.         # 0x601 by default unless something else is set by the user.

  5191.         # This can easily lead to us detecting functions only present

  5192.         # in such new versions and producing binaries requiring windows 7.0.

  5193.         # Therefore explicitly set the default to XP unless the user has

  5194.         # set something else on the command line.

  5195.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5196.         # family. For these cases, configure is free to use any functions

  5197.         # found in the SDK headers by default. (Alternatively, we could force

  5198.         # _WIN32_WINNT to 0x0602 in that case.)

  5199.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5200.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5201. #ifdef WINAPI_FAMILY

  5202. #include <winapifamily.h>

  5203. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5204. #error not desktop

  5205. #endif

  5206. #endif

  5207. EOF

  5208.         if [ "$pfx" = "" ]; then

  5209.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5210.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5211.         fi

  5212.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5213.         eval ${pfx}libc_type=klibc

  5214.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5215.         eval ${pfx}libc_type=bionic

  5216.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5217.         eval ${pfx}libc_type=solaris

  5218.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5219.     fi

  5220.     check_${pfx}cc <<EOF

  5221. #include <time.h>

  5222. void *v = localtime_r;

  5223. EOF

  5224. 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

  5225. #include <time.h>

  5226. void *v = localtime_r;

  5227. EOF

  5228. 

  5229.     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}

  5230. }

  5231. 

  5232. probe_libc

  5233. probe_libc host_

  5234. 

  5235. # hacks for compiler/libc/os combinations

  5236. 

  5237. case $libc_type in

  5238.     bionic)

  5239.         add_compat strtod.o strtod=avpriv_strtod

  5240.         ;;

  5241. esac

  5242. 

  5243. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5244.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5245. 

  5246. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5247. 

  5248. set_default libdir

  5249. : ${shlibdir_default:="$libdir"}

  5250. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5251. 

  5252. set_default $PATHS_LIST

  5253. set_default nm

  5254. 

  5255. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5256. 

  5257. enable_weak_pic() {

  5258.     disabled pic && return

  5259.     enable pic

  5260.     add_cppflags -DPIC

  5261.     case "$target_os" in

  5262.     mingw*|cygwin*|win*)

  5263.         ;;

  5264.     *)

  5265.         add_cflags -fPIC

  5266.         add_asflags -fPIC

  5267.         ;;

  5268.     esac

  5269. }

  5270. 

  5271. enabled pic && enable_weak_pic

  5272. 

  5273. check_cc <<EOF || die "Symbol mangling check failed."

  5274. int ff_extern;

  5275. EOF

  5276. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5277. extern_prefix=${sym%%ff_extern*}

  5278. 

  5279. ! disabled inline_asm && check_inline_asm inline_asm '"" ::'

  5280. 

  5281. _restrict=

  5282. for restrict_keyword in restrict __restrict__ __restrict; do

  5283.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5284. void foo(char * $restrict_keyword p);

  5285. EOF

  5286. done

  5287. 

  5288. check_cc <<EOF && enable pragma_deprecated

  5289. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5290. EOF

  5291. 

  5292. check_cc <<EOF || die "endian test failed"

  5293. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5294. EOF

  5295. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5296. 

  5297. check_cc <<EOF && enable const_nan

  5298. #include <math.h>

  5299. void foo(void) { struct { double d; } static const bar[] = { { NAN } }; }

  5300. EOF

  5301. 

  5302. if ! enabled ppc64 || enabled bigendian; then

  5303.     disable vsx

  5304. fi

  5305. 

  5306. check_gas() {

  5307.     log "check_gas using '$as' as AS"

  5308.     # :vararg is used on aarch64, arm and ppc altivec

  5309.     check_as <<EOF || return 1

  5310. .macro m n, y:vararg=0

  5311. \n: .int \y

  5312. .endm

  5313. m x

  5314. EOF

  5315.     # .altmacro is only used in arm asm

  5316.     ! enabled arm || check_as <<EOF || return 1

  5317. .altmacro

  5318. EOF

  5319.     enable gnu_as

  5320.     return 0

  5321. }

  5322. 

  5323. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5324.     nogas=:

  5325.     enabled_any arm aarch64 && nogas=die

  5326.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5327.     as_noop=-v

  5328. 

  5329.     case $as_type in

  5330.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5331.         gcc)  gaspp_as_type=gas ;;

  5332.         *)    gaspp_as_type=$as_type ;;

  5333.     esac

  5334. 

  5335.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5336. 

  5337.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5338.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5339.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5340. 

  5341.     if ! check_gas ; then

  5342.         as=${gas:=$as}

  5343.         check_gas || \

  5344.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5345.     fi

  5346. 

  5347.     check_as <<EOF && enable as_func

  5348. .func test

  5349. .endfunc

  5350. EOF

  5351. fi

  5352. 

  5353. check_inline_asm inline_asm_labels '"1:\n"'

  5354. 

  5355. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5356. 

  5357. if enabled aarch64; then

  5358.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5359.     # internal assembler in clang 3.3 does not support this instruction

  5360.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5361.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5362. 

  5363.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5364. 

  5365. elif enabled alpha; then

  5366. 

  5367.     check_cflags -mieee

  5368. 

  5369. elif enabled arm; then

  5370. 

  5371.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5372. 

  5373.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5374. float func(float a, float b){ return a+b; }

  5375. EOF

  5376. 

  5377.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5378. 

  5379.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5380.         enable vfp_args

  5381.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5382.         enable vfp_args

  5383.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5384.         case "${cross_prefix:-$cc}" in

  5385.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5386.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5387. __asm__ (".eabi_attribute 28, 1");

  5388. int main(void) { return 0; }

  5389. EOF

  5390.         esac

  5391.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5392.     fi

  5393. 

  5394.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5395.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5396.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5397.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5398.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5399.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5400.     enabled setend  && check_insn setend  'setend be'

  5401. 

  5402.     [ $target_os = linux ] || [ $target_os = android ] ||

  5403.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5404.             $ARCH_EXT_LIST_ARM

  5405. 

  5406.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5407. 

  5408.     check_as <<EOF && enable as_arch_directive

  5409. .arch armv7-a

  5410. EOF

  5411.     check_as <<EOF && enable as_fpu_directive

  5412. .fpu neon

  5413. EOF

  5414. 

  5415.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5416.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5417.         check_as <<EOF && enable as_object_arch

  5418. .object_arch armv4

  5419. EOF

  5420. 

  5421.     # MS armasm fails to assemble our PIC constructs

  5422.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5423. 

  5424. elif enabled mips; then

  5425. 

  5426.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5427.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5428.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5429. 

  5430.     # Enable minimum ISA based on selected options

  5431.     if enabled mips64; then

  5432.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5433.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5434.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5435.     else

  5436.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5437.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5438.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5439.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5440.     fi

  5441. 

  5442.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5443.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5444.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5445.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5446.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5447. 

  5448.     if enabled bigendian && enabled msa; then

  5449.         disable msa

  5450.     fi

  5451. 

  5452. elif enabled parisc; then

  5453. 

  5454.     if enabled gcc; then

  5455.         case $($cc -dumpversion) in

  5456.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5457.         esac

  5458.     fi

  5459. 

  5460. elif enabled ppc; then

  5461. 

  5462.     enable local_aligned

  5463. 

  5464.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5465.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5466.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5467.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5468. 

  5469.     if enabled altivec; then

  5470.         check_cflags -maltivec -mabi=altivec

  5471. 

  5472.         # check if our compiler supports Motorola AltiVec C API

  5473.         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };

  5474.                                  vector signed int v2 = (vector signed int) { 1 };

  5475.                                  v1 = vec_add(v1, v2);" ||

  5476.             disable altivec

  5477. 

  5478.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5479.     fi

  5480. 

  5481.     if enabled vsx; then

  5482.         check_cflags -mvsx &&

  5483.         check_code cc altivec.h "int v[4] = { 0 };

  5484.                                  vector signed int v1 = vec_vsx_ld(0, v);" ||

  5485.             disable vsx

  5486.     fi

  5487. 

  5488.     if enabled power8; then

  5489.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5490.     fi

  5491. 

  5492. elif enabled x86; then

  5493. 

  5494.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5495.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5496. 

  5497.     enable local_aligned

  5498. 

  5499.     # check whether EBP is available on x86

  5500.     # As 'i' is stored on the stack, this program will crash

  5501.     # if the base pointer is used to access it because the

  5502.     # base pointer is cleared in the inline assembly code.

  5503.     check_exec_crash <<EOF && enable ebp_available

  5504. volatile int i=0;

  5505. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5506. return i;

  5507. EOF

  5508. 

  5509.     # check whether EBX is available on x86

  5510.     check_inline_asm ebx_available '""::"b"(0)' &&

  5511.         check_inline_asm ebx_available '"":::"%ebx"'

  5512. 

  5513.     # check whether xmm clobbers are supported

  5514.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5515. 

  5516.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5517.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5518. 

  5519.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5520.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5521.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5522. 

  5523.     probe_x86asm(){

  5524.         x86asmexe_probe=$1

  5525.         if check_cmd $x86asmexe_probe -v; then

  5526.             x86asmexe=$x86asmexe_probe

  5527.             x86asm_type=nasm

  5528.             x86asm_debug="-g -F dwarf"

  5529.             X86ASMDEP=

  5530.             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5531.         elif check_cmd $x86asmexe_probe --version; then

  5532.             x86asmexe=$x86asmexe_probe

  5533.             x86asm_type=yasm

  5534.             x86asm_debug="-g dwarf2"

  5535.             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5536.             X86ASM_DEPFLAGS=

  5537.         fi

  5538.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5539.     }

  5540. 

  5541.     if ! disabled_any asm mmx x86asm; then

  5542.         disable x86asm

  5543.         for program in $x86asmexe nasm yasm; do

  5544.             probe_x86asm $program && break

  5545.         done

  5546.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5547.         X86ASMFLAGS="-f $objformat"

  5548.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5549.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5550.         case "$objformat" in

  5551.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5552.         esac

  5553. 

  5554.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5555.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5556.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5557.         check_x86asm "CPU amdnop" || disable cpunop

  5558.     fi

  5559. 

  5560.     case "$cpu" in

  5561.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5562.             disable fast_clz

  5563.         ;;

  5564.     esac

  5565. 

  5566. fi

  5567. 

  5568. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5569. 

  5570. check_ldflags -Wl,--as-needed

  5571. check_ldflags -Wl,-z,noexecstack

  5572. 

  5573. if ! disabled network; then

  5574.     check_func getaddrinfo $network_extralibs

  5575.     check_func inet_aton $network_extralibs

  5576. 

  5577.     check_type netdb.h "struct addrinfo"

  5578.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5579.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5580.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5581.     check_type poll.h "struct pollfd"

  5582.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5583.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5584.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5585.     check_type netinet/in.h "struct sockaddr_in6"

  5586.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5587.     check_type "sys/types.h sys/socket.h" socklen_t

  5588. 

  5589.     # Prefer arpa/inet.h over winsock2

  5590.     if check_header arpa/inet.h ; then

  5591.         check_func closesocket

  5592.     elif check_header winsock2.h ; then

  5593.         check_func_headers winsock2.h closesocket -lws2 &&

  5594.             network_extralibs="-lws2" ||

  5595.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5596.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5597.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5598. 

  5599.         check_type ws2tcpip.h socklen_t

  5600.         check_type ws2tcpip.h "struct addrinfo"

  5601.         check_type ws2tcpip.h "struct group_source_req"

  5602.         check_type ws2tcpip.h "struct ip_mreq_source"

  5603.         check_type ws2tcpip.h "struct ipv6_mreq"

  5604.         check_type winsock2.h "struct pollfd"

  5605.         check_struct winsock2.h "struct sockaddr" sa_len

  5606.         check_type ws2tcpip.h "struct sockaddr_in6"

  5607.         check_type ws2tcpip.h "struct sockaddr_storage"

  5608.     else

  5609.         disable network

  5610.     fi

  5611. fi

  5612. 

  5613. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5614. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5615. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5616. check_builtin sarestart signal.h "SA_RESTART"

  5617. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5618. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5619. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5620. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5621. 

  5622. case "$custom_allocator" in

  5623.     jemalloc)

  5624.         # jemalloc by default does not use a prefix

  5625.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5626.     ;;

  5627.     tcmalloc)

  5628.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5629.         malloc_prefix=tc_

  5630.     ;;

  5631. esac

  5632. 

  5633. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5634. check_func  ${malloc_prefix}memalign            && enable memalign

  5635. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5636. 

  5637. check_func  access

  5638. check_func_headers stdlib.h arc4random

  5639. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5640. check_func  fcntl

  5641. check_func  fork

  5642. check_func  gethrtime

  5643. check_func  getopt

  5644. check_func  getrusage

  5645. check_func  gettimeofday

  5646. check_func  isatty

  5647. check_func  mkstemp

  5648. check_func  mmap

  5649. check_func  mprotect

  5650. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5651. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5652. check_func  sched_getaffinity

  5653. check_func  setrlimit

  5654. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5655. check_func  strerror_r

  5656. check_func  sysconf

  5657. check_func  sysctl

  5658. check_func  usleep

  5659. 

  5660. check_func_headers conio.h kbhit

  5661. check_func_headers io.h setmode

  5662. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5663. check_func_headers mach/mach_time.h mach_absolute_time

  5664. check_func_headers stdlib.h getenv

  5665. check_func_headers sys/stat.h lstat

  5666. 

  5667. check_func_headers windows.h GetProcessAffinityMask

  5668. check_func_headers windows.h GetProcessTimes

  5669. check_func_headers windows.h GetSystemTimeAsFileTime

  5670. check_func_headers windows.h LoadLibrary

  5671. check_func_headers windows.h MapViewOfFile

  5672. check_func_headers windows.h PeekNamedPipe

  5673. check_func_headers windows.h SetConsoleTextAttribute

  5674. check_func_headers windows.h SetConsoleCtrlHandler

  5675. check_func_headers windows.h Sleep

  5676. check_func_headers windows.h VirtualAlloc

  5677. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5678. check_func_headers glob.h glob

  5679. enabled xlib &&

  5680.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5681. 

  5682. check_header direct.h

  5683. check_header dirent.h

  5684. check_header dxgidebug.h

  5685. check_header dxva.h

  5686. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5687. check_header io.h

  5688. check_header libcrystalhd/libcrystalhd_if.h

  5689. check_header malloc.h

  5690. check_header net/udplite.h

  5691. check_header poll.h

  5692. check_header sys/param.h

  5693. check_header sys/resource.h

  5694. check_header sys/select.h

  5695. check_header sys/time.h

  5696. check_header sys/un.h

  5697. check_header termios.h

  5698. check_header unistd.h

  5699. check_header valgrind/valgrind.h

  5700. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5701. check_header windows.h

  5702. check_header X11/extensions/XvMClib.h

  5703. check_header asm/types.h

  5704. 

  5705. # it seems there are versions of clang in some distros that try to use the

  5706. # gcc headers, which explodes for stdatomic

  5707. # so we also check that atomics actually work here

  5708. check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5709. 

  5710. check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32

  5711. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5712. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5713. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5714. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5715. 

  5716. enabled appkit       && check_apple_framework AppKit

  5717. enabled audiotoolbox && check_apple_framework AudioToolbox

  5718. enabled avfoundation && check_apple_framework AVFoundation

  5719. enabled coreimage    && check_apple_framework CoreImage

  5720. enabled videotoolbox && check_apple_framework VideoToolbox

  5721. 

  5722. check_apple_framework CoreFoundation

  5723. check_apple_framework CoreMedia

  5724. check_apple_framework CoreVideo

  5725. 

  5726. enabled avfoundation && {

  5727.     disable coregraphics applicationservices

  5728.     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||

  5729.     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }

  5730. 

  5731. enabled videotoolbox && {

  5732.     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"

  5733.     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"

  5734. }

  5735. 

  5736. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5737. 

  5738. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5739. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5740. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5741. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5742. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5743. 

  5744. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5745. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5746. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5747. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5748. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5749. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5750. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5751. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5752. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5753. 

  5754. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5755. 

  5756. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5757. 

  5758. if ! disabled w32threads && ! enabled pthreads; then

  5759.     check_func_headers "windows.h process.h" _beginthreadex &&

  5760.         enable w32threads || disable w32threads

  5761.     if ! enabled w32threads && enabled winrt; then

  5762.         check_func_headers "windows.h" CreateThread &&

  5763.             enable w32threads || disable w32threads

  5764.     fi

  5765. fi

  5766. 

  5767. # check for some common methods of building with pthread support

  5768. # do this before the optional library checks as some of them require pthreads

  5769. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5770.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5771.        check_lib pthreads pthread.h pthread_create -pthread; then

  5772.         add_cflags -pthread

  5773.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5774.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5775.         add_cflags -pthreads

  5776.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5777.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5778.         add_cflags -ldl -pthread

  5779.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5780.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5781.         :

  5782.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5783.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5784.         :

  5785.     elif check_func pthread_join && check_func pthread_create; then

  5786.         enable pthreads

  5787.     fi

  5788.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5789. 

  5790.     if enabled pthreads; then

  5791.         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5792.         check_func pthread_cancel $pthreads_extralibs

  5793.     fi

  5794. fi

  5795. 

  5796. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5797. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5798. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5799. 

  5800. # On some systems dynamic loading requires no extra linker flags

  5801. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5802. 

  5803. check_lib libm math.h sin -lm

  5804. 

  5805. atan2f_args=2

  5806. copysign_args=2

  5807. hypot_args=2

  5808. ldexpf_args=2

  5809. powf_args=2

  5810. 

  5811. for func in $MATH_FUNCS; do

  5812.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5813. done

  5814. 

  5815. for func in $COMPLEX_FUNCS; do

  5816.     eval check_complexfunc $func \${${func}_args:-1}

  5817. done

  5818. 

  5819. # these are off by default, so fail if requested and not available

  5820. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5821. enabled cuvid             && { enabled cuda ||

  5822.                                die "ERROR: CUVID requires CUDA"; }

  5823. enabled nvdec             && { enabled cuda ||

  5824.                                die "ERROR: NVDEC hwaccel requires CUDA"; }

  5825. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5826. enabled decklink          && { require_header DeckLinkAPI.h &&

  5827.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5828. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5829. enabled frei0r            && require_header frei0r.h

  5830. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5831. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5832. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5833. enabled ladspa            && require_header ladspa.h

  5834. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5835. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5836. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5837. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5838. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5839.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5840.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5841. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5842. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5843. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5844. enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5845.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5846.                                  warn "using libfdk without pkg-config"; } }

  5847. 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"

  5848. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5849. enabled fontconfig        && enable libfontconfig

  5850. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5851. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5852. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5853. enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5854.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5855. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5856.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5857.                                done || die "ERROR: libgsm not found"; }

  5858. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  5859. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5860. # While it may appear that require is being used as a pkg-config

  5861. # fallback for libmfx, it is actually being used to detect a different

  5862. # installation route altogether.  If libmfx is installed via the Intel

  5863. # Media SDK or Intel Media Server Studio, these don't come with

  5864. # pkg-config support.  Instead, users should make sure that the build

  5865. # can find the libraries and headers through other means.

  5866. enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  5867.                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }

  5868. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  5869. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5870. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs

  5871. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5872.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5873.                                die "ERROR: libnpp not found"; }

  5874. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5875. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5876. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5877.                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5878.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5879.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  5880. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  5881. enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  5882.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  5883. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  5884. enabled libopus           && {

  5885.     enabled libopus_decoder && {

  5886.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  5887.     }

  5888.     enabled libopus_encoder && {

  5889.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  5890.     }

  5891. }

  5892. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  5893. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5894. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  5895. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  5896. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  5897. enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  5898.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  5899. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  5900. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  5901. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  5902. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init

  5903. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  5904. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5905. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5906.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5907.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5908. enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl

  5909. enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5910. enabled libvmaf           && require_pkg_config libvmaf libvmaf libvmaf.h compute_vmaf

  5911. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5912. enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&

  5913.                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  5914. 

  5915. enabled libvpx            && {

  5916.     enabled libvpx_vp8_decoder && {

  5917.         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5918.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  5919.                 die "ERROR: libvpx decoder version must be >=1.4.0";

  5920.     }

  5921.     enabled libvpx_vp8_encoder && {

  5922.         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5923.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_IMG_FMT_HIGHBITDEPTH" -lvpx ||

  5924.                 die "ERROR: libvpx encoder version must be >=1.4.0";

  5925.     }

  5926.     enabled libvpx_vp9_decoder && {

  5927.         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5928.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" -lvpx

  5929.     }

  5930.     enabled libvpx_vp9_encoder && {

  5931.         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5932.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" -lvpx

  5933.     }

  5934.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5935.         die "libvpx enabled but no supported decoders found"

  5936.     fi

  5937. }

  5938. 

  5939. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5940. enabled libwebp           && {

  5941.     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5942.     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }

  5943. enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||

  5944.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5945.                                  warn "using libx264 without pkg-config"; } } &&

  5946.                              require_cpp_condition x264.h "X264_BUILD >= 118" &&

  5947.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5948.                                enable libx262; }

  5949. enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&

  5950.                              require_cpp_condition x265.h "X265_BUILD >= 68"

  5951. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"

  5952. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5953. enabled libzimg           && require_pkg_config libzimg "zimg >= 2.3.0" zimg.h zimg_get_api_version

  5954. enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new

  5955. enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&

  5956.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5957.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5958. enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion

  5959. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5960. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5961.                                { ! enabled cross_compile &&

  5962.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5963.                                  add_ldflags -L/opt/vc/lib/ &&

  5964.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5965.                                die "ERROR: mmal not found" &&

  5966.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5967. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5968.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5969.                                die "ERROR: openal not found"; } &&

  5970.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5971.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5972. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5973.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5974.                                die "ERROR: opencl not found"; } &&

  5975.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5976.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5977.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5978. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  5979.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5980.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5981.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5982.                                die "ERROR: opengl not found."

  5983.                              }

  5984. enabled omx               && require_header OMX_Core.h

  5985. enabled omx_rpi           && { check_header OMX_Core.h ||

  5986.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  5987.                                die "ERROR: OpenMAX IL headers not found"; } && enable omx

  5988. enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||

  5989.                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||

  5990.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5991.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5992.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5993.                                die "ERROR: openssl not found"; }

  5994. enabled rkmpp             && { { require_pkg_config rkmpp rockchip_mpp rockchip/rk_mpi.h mpp_create ||

  5995.                                  die "ERROR : Rockchip MPP was not found."; } &&

  5996.                                { check_func_headers rockchip/rk_mpi_cmd.h "MPP_DEC_GET_FREE_PACKET_SLOT_COUNT" ||

  5997.                                  die "ERROR: Rockchip MPP is outdated, please get a more recent one."; } &&

  5998.                                { enabled libdrm ||

  5999.                                  die "ERROR: rkmpp requires --enable-libdrm"; }

  6000.                              }

  6001. 

  6002. if enabled gcrypt; then

  6003.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6004.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6005.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6006.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6007.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6008.             die "ERROR: gcrypt not found"

  6009.         add_cflags $gcrypt_cflags

  6010.     else

  6011.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6012.     fi

  6013. fi

  6014. 

  6015. if enabled sdl2; then

  6016.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6017.     if test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent; then

  6018.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||

  6019.             disable sdl2

  6020.     elif "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6021.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6022.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6023.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6024.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6025.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags &&

  6026.             enable sdl2

  6027.     fi

  6028.     if test $target_os = "mingw32"; then

  6029.         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)

  6030.     fi

  6031. fi

  6032. 

  6033. if enabled decklink; then

  6034.     case $target_os in

  6035.         mingw32*|mingw64*|win32|win64)

  6036.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6037.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6038.             ;;

  6039.     esac

  6040. fi

  6041. 

  6042. enabled securetransport &&

  6043.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6044.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6045.         disable securetransport

  6046. 

  6047. enabled securetransport &&

  6048.     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"

  6049. 

  6050. enabled schannel &&

  6051.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6052.     check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6053.     schannel_extralibs="-lsecur32" ||

  6054.         disable schannel

  6055. 

  6056. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6057. enabled makeinfo \

  6058.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6059.     && enable makeinfo_html || disable makeinfo_html

  6060. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6061. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6062. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6063. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6064. 

  6065. # check V4L2 codecs available in the API

  6066. check_header linux/fb.h

  6067. check_header linux/videodev2.h

  6068. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6069. check_code cc linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;" || disable v4l2_m2m

  6070. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;" && enable vc1_v4l2_m2m

  6071. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;" && enable mpeg1_v4l2_m2m

  6072. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;" && enable mpeg2_v4l2_m2m

  6073. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;" && enable mpeg4_v4l2_m2m

  6074. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;" && enable hevc_v4l2_m2m

  6075. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H263;" && enable h263_v4l2_m2m

  6076. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_H264;" && enable h264_v4l2_m2m

  6077. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;" && enable vp8_v4l2_m2m

  6078. check_code cc linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;" && enable vp9_v4l2_m2m

  6079. 

  6080. check_header sys/videoio.h

  6081. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete

  6082. 

  6083. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6084. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6085. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6086. # w32api 3.12 had it defined wrong

  6087. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6088. 

  6089. check_type "dshow.h" IBaseFilter

  6090. 

  6091. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6092. check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||

  6093.     check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||

  6094.     check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||

  6095.     check_header "dev/ic/bt8xx.h"

  6096. 

  6097. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6098.     enable_sanitized sys/soundcard.h

  6099. else

  6100.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h

  6101.     #include <sys/soundcard.h>

  6102.     audio_buf_info abc;

  6103. EOF

  6104. fi

  6105. 

  6106. enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||

  6107.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6108. 

  6109. enabled libjack &&

  6110.     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range

  6111. 

  6112. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6113. 

  6114. if enabled libcdio; then

  6115.     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||

  6116.     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||

  6117.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6118.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6119.     die "ERROR: No usable libcdio/cdparanoia found"

  6120. fi

  6121. 

  6122. enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||

  6123.     disable libxcb_shm libxcb_shape libxcb_xfixes

  6124. 

  6125. if enabled libxcb; then

  6126.     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach

  6127.     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles

  6128.     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image

  6129. fi

  6130. 

  6131. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6132. 

  6133. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6134. # the desktop api partition

  6135. check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6136. #ifdef WINAPI_FAMILY

  6137. #include <winapifamily.h>

  6138. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6139. #error desktop, not uwp

  6140. #else

  6141. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6142. #endif

  6143. #else

  6144. #error no family set

  6145. #endif

  6146. EOF

  6147. 

  6148. enabled vaapi &&

  6149.     check_lib vaapi va/va.h vaInitialize -lva

  6150. 

  6151. enabled vaapi &&

  6152.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6153.     disable vaapi

  6154. 

  6155. enabled vaapi &&

  6156.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6157. 

  6158. enabled vaapi &&

  6159.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6160. 

  6161. enabled vaapi &&

  6162.     check_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&

  6163.     enable vaapi_1

  6164. 

  6165. if enabled_all opencl vaapi ; then

  6166.     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&

  6167.         enable opencl_vaapi_beignet

  6168.     if enabled libmfx ; then

  6169.         check_type "CL/cl.h CL/va_ext.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&

  6170.             enable opencl_vaapi_intel_media

  6171.     fi

  6172. fi

  6173. 

  6174. if enabled_all opencl dxva2 ; then

  6175.     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&

  6176.         enable opencl_dxva2

  6177. fi

  6178. 

  6179. if enabled_all opencl d3d11va ; then

  6180.     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&

  6181.         enable opencl_d3d11

  6182. fi

  6183. 

  6184. if enabled_all opencl libdrm ; then

  6185.     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&

  6186.         enable opencl_drm_arm

  6187. fi

  6188. 

  6189. enabled vdpau &&

  6190.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6191.     disable vdpau

  6192. 

  6193. enabled vdpau &&

  6194.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6195. 

  6196. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6197. 

  6198. if enabled x86; then

  6199.     case $target_os in

  6200.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6201.             ;;

  6202.         *)

  6203.             disable cuda cuvid nvdec nvenc

  6204.             ;;

  6205.     esac

  6206. else

  6207.     disable cuda cuvid nvdec nvenc

  6208. fi

  6209. 

  6210. enabled nvenc &&

  6211.     check_cc -I$source_path <<EOF || disable nvenc

  6212. #include "compat/nvenc/nvEncodeAPI.h"

  6213. NV_ENCODE_API_FUNCTION_LIST flist;

  6214. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6215. int main(void) { return 0; }

  6216. EOF

  6217. 

  6218. # Funny iconv installations are not unusual, so check it after all flags have been set

  6219. if enabled libc_iconv; then

  6220.     check_func_headers iconv.h iconv

  6221. elif enabled iconv; then

  6222.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6223. fi

  6224. 

  6225. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6226. 

  6227. # add some useful compiler flags if supported

  6228. check_cflags -Wdeclaration-after-statement

  6229. check_cflags -Wall

  6230. check_cflags -Wdisabled-optimization

  6231. check_cflags -Wpointer-arith

  6232. check_cflags -Wredundant-decls

  6233. check_cflags -Wwrite-strings

  6234. check_cflags -Wtype-limits

  6235. check_cflags -Wundef

  6236. check_cflags -Wmissing-prototypes

  6237. check_cflags -Wno-pointer-to-int-cast

  6238. check_cflags -Wstrict-prototypes

  6239. check_cflags -Wempty-body

  6240. 

  6241. if enabled extra_warnings; then

  6242.     check_cflags -Wcast-qual

  6243.     check_cflags -Wextra

  6244.     check_cflags -Wpedantic

  6245. fi

  6246. 

  6247. check_disable_warning(){

  6248.     warning_flag=-W${1#-Wno-}

  6249.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6250. }

  6251. 

  6252. test_cflags -Werror=unused-command-line-argument &&

  6253.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6254. test_cflags -Werror=unknown-warning-option &&

  6255.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6256. 

  6257. check_disable_warning -Wno-parentheses

  6258. check_disable_warning -Wno-switch

  6259. check_disable_warning -Wno-format-zero-length

  6260. check_disable_warning -Wno-pointer-sign

  6261. check_disable_warning -Wno-unused-const-variable

  6262. check_disable_warning -Wno-bool-operation

  6263. 

  6264. check_disable_warning_headers(){

  6265.     warning_flag=-W${1#-Wno-}

  6266.     test_cflags $warning_flag && add_cflags_headers $1

  6267. }

  6268. 

  6269. check_disable_warning_headers -Wno-deprecated-declarations

  6270. check_disable_warning_headers -Wno-unused-variable

  6271. 

  6272. check_cc <<EOF && enable blocks_extension

  6273. void (^block)(void);

  6274. EOF

  6275. 

  6276. # add some linker flags

  6277. check_ldflags -Wl,--warn-common

  6278. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6279. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir

  6280. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6281. 

  6282. # add some strip flags

  6283. check_stripflags -x

  6284. 

  6285. enabled neon_clobber_test &&

  6286.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6287.                   -Wl,--wrap,avcodec_decode_audio4      \

  6288.                   -Wl,--wrap,avcodec_decode_video2      \

  6289.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6290.                   -Wl,--wrap,avcodec_encode_audio2      \

  6291.                   -Wl,--wrap,avcodec_encode_video2      \

  6292.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6293.                   -Wl,--wrap,avcodec_send_packet        \

  6294.                   -Wl,--wrap,avcodec_receive_packet     \

  6295.                   -Wl,--wrap,avcodec_send_frame         \

  6296.                   -Wl,--wrap,avcodec_receive_frame      \

  6297.                   -Wl,--wrap,swr_convert                \

  6298.                   -Wl,--wrap,avresample_convert ||

  6299.     disable neon_clobber_test

  6300. 

  6301. enabled xmm_clobber_test &&

  6302.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6303.                   -Wl,--wrap,avcodec_decode_audio4      \

  6304.                   -Wl,--wrap,avcodec_decode_video2      \

  6305.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6306.                   -Wl,--wrap,avcodec_encode_audio2      \

  6307.                   -Wl,--wrap,avcodec_encode_video2      \

  6308.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6309.                   -Wl,--wrap,avcodec_send_packet        \

  6310.                   -Wl,--wrap,avcodec_receive_packet     \

  6311.                   -Wl,--wrap,avcodec_send_frame         \

  6312.                   -Wl,--wrap,avcodec_receive_frame      \

  6313.                   -Wl,--wrap,swr_convert                \

  6314.                   -Wl,--wrap,avresample_convert         \

  6315.                   -Wl,--wrap,sws_scale ||

  6316.     disable xmm_clobber_test

  6317. 

  6318. check_ld "cc" <<EOF && enable proper_dce

  6319. extern const int array[512];

  6320. static inline int func(void) { return array[0]; }

  6321. int main(void) { return 0; }

  6322. EOF

  6323. 

  6324. if enabled proper_dce; then

  6325.     echo "X { local: *; };" > $TMPV

  6326.     if test_ldflags -Wl,${version_script},$TMPV; then

  6327.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6328.         quotes='""'

  6329.         check_cc <<EOF && enable symver_asm_label

  6330. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6331. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6332. EOF

  6333.         check_cc <<EOF && enable symver_gnu_asm

  6334. __asm__(".symver ff_foo,av_foo@VERSION");

  6335. void ff_foo(void) {}

  6336. EOF

  6337.     fi

  6338. fi

  6339. 

  6340. if [ -z "$optflags" ]; then

  6341.     if enabled small; then

  6342.         optflags=$cflags_size

  6343.     elif enabled optimizations; then

  6344.         optflags=$cflags_speed

  6345.     else

  6346.         optflags=$cflags_noopt

  6347.     fi

  6348. fi

  6349. 

  6350. if [ -z "$nvccflags" ]; then

  6351.     nvccflags=$nvccflags_default

  6352. fi

  6353. 

  6354. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6355.     nvccflags="$nvccflags -m64"

  6356. else

  6357.     nvccflags="$nvccflags -m32"

  6358. fi

  6359. 

  6360. check_optflags(){

  6361.     check_cflags "$@"

  6362.     enabled lto && check_ldflags "$@"

  6363. }

  6364. 

  6365. check_optflags $optflags

  6366. check_optflags -fno-math-errno

  6367. check_optflags -fno-signed-zeros

  6368. 

  6369. if enabled lto; then

  6370.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6371.     check_cflags  -flto

  6372.     check_ldflags -flto $cpuflags

  6373.     disable inline_asm_direct_symbol_refs

  6374. fi

  6375. 

  6376. enabled ftrapv && check_cflags -ftrapv

  6377. 

  6378. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6379. int x;

  6380. EOF

  6381. 

  6382. 

  6383. if enabled icc; then

  6384.     # Just warnings, no remarks

  6385.     check_cflags -w1

  6386.     # -wd: Disable following warnings

  6387.     # 144, 167, 556: -Wno-pointer-sign

  6388.     # 188: enumerated type mixed with another type

  6389.     # 1292: attribute "foo" ignored

  6390.     # 1419: external declaration in primary source file

  6391.     # 10006: ignoring unknown option -fno-signed-zeros

  6392.     # 10148: ignoring unknown option -Wno-parentheses

  6393.     # 10156: ignoring option '-W'; no argument required

  6394.     # 13200: No EMMS instruction before call to function

  6395.     # 13203: No EMMS instruction before return from function

  6396.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6397.     # 11030: Warning unknown option --as-needed

  6398.     # 10156: ignoring option '-export'; no argument required

  6399.     check_ldflags -wd10156,11030

  6400.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6401.     enable ebp_available

  6402.     # The test above does not test linking

  6403.     enabled lto && disable symver_asm_label

  6404.     if enabled x86_32; then

  6405.         icc_version=$($cc -dumpversion)

  6406.         test ${icc_version%%.*} -ge 11 &&

  6407.             check_cflags -falign-stack=maintain-16-byte ||

  6408.             disable aligned_stack

  6409.     fi

  6410. elif enabled gcc; then

  6411.     check_optflags -fno-tree-vectorize

  6412.     check_cflags -Werror=format-security

  6413.     check_cflags -Werror=implicit-function-declaration

  6414.     check_cflags -Werror=missing-prototypes

  6415.     check_cflags -Werror=return-type

  6416.     check_cflags -Werror=vla

  6417.     check_cflags -Wformat

  6418.     check_cflags -fdiagnostics-color=auto

  6419.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6420. elif enabled llvm_gcc; then

  6421.     check_cflags -mllvm -stack-alignment=16

  6422. elif enabled clang; then

  6423.     check_cflags -mllvm -stack-alignment=16

  6424.     check_cflags -mstack-alignment=16

  6425.     check_cflags -Qunused-arguments

  6426.     check_cflags -Werror=implicit-function-declaration

  6427.     check_cflags -Werror=missing-prototypes

  6428.     check_cflags -Werror=return-type

  6429. elif enabled cparser; then

  6430.     add_cflags -Wno-missing-variable-declarations

  6431.     add_cflags -Wno-empty-statement

  6432. elif enabled armcc; then

  6433.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6434.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6435.     # 2523: use of inline assembly is deprecated

  6436.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6437.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6438.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6439.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6440.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6441.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6442. elif enabled pathscale; then

  6443.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6444.     disable inline_asm

  6445. elif enabled_any msvc icl; then

  6446.     enabled x86_32 && disable aligned_stack

  6447.     enabled_all x86_32 debug && add_cflags -Oy-

  6448.     enabled debug && add_ldflags -debug

  6449.     enable pragma_deprecated

  6450.     if enabled icl; then

  6451.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6452.         # (correctly) on icl 13.x.

  6453.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6454.             add_cflags -Qansi-alias

  6455.         # Some inline asm is not compilable in debug

  6456.         if enabled debug; then

  6457.             disable ebp_available

  6458.             disable ebx_available

  6459.         fi

  6460.     fi

  6461.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6462.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6463.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6464.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6465.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6466.     # MSVC 2013 and newer can handle it fine.

  6467.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6468.     # happens in config.h.

  6469.     if [ $_restrict != restrict ]; then

  6470.         check_cc <<EOF || add_cflags -FIstdlib.h

  6471. __declspec($_restrict) void* foo(int);

  6472. EOF

  6473.     fi

  6474.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6475.     # Issue has been fixed in MSVC v19.00.24218.

  6476.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6477.         check_cflags -d2SSAOptimizer-

  6478.     # enable utf-8 source processing on VS2015 U2 and newer

  6479.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6480.         add_cflags -utf-8

  6481. fi

  6482. 

  6483. for pfx in "" host_; do

  6484.     varname=${pfx%_}cc_type

  6485.     eval "type=\$$varname"

  6486.     if [ "$type" = "msvc" ]; then

  6487.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6488. static inline int foo(int a) { return a; }

  6489. EOF

  6490.     fi

  6491. done

  6492. 

  6493. case $as_type in

  6494.     clang)

  6495.         add_asflags -Qunused-arguments

  6496.     ;;

  6497. esac

  6498. 

  6499. case $ld_type in

  6500.     clang)

  6501.         check_ldflags -Qunused-arguments

  6502.     ;;

  6503. esac

  6504. 

  6505. enable frame_thread_encoder

  6506. 

  6507. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6508. 

  6509. check_deps $CONFIG_LIST       \

  6510.            $CONFIG_EXTRA      \

  6511.            $HAVE_LIST         \

  6512.            $ALL_COMPONENTS    \

  6513. 

  6514. 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"

  6515. 

  6516. 

  6517. if test $target_os = "haiku"; then

  6518.     disable memalign

  6519.     disable posix_memalign

  6520. fi

  6521. 

  6522. flatten_extralibs(){

  6523.     unset nested_entries

  6524.     list_name=$1

  6525.     eval list=\$${1}

  6526.     for entry in $list; do

  6527.         entry_copy=$entry

  6528.         resolve entry_copy

  6529.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6530.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6531.         eval $entry="\$flat_entries"

  6532.     done

  6533.     append $list_name "$nested_entries"

  6534. 

  6535.     resolve nested_entries

  6536.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6537.         flatten_extralibs $list_name

  6538.     fi

  6539. }

  6540. 

  6541. flatten_extralibs_wrapper(){

  6542.     list_name=$1

  6543.     flatten_extralibs $list_name

  6544.     unique $list_name

  6545.     resolve $list_name

  6546.     eval $list_name=\$\(\$ldflags_filter \$$list_name\)

  6547.     eval printf \''%s'\' \""\$$list_name"\"

  6548. }

  6549. 

  6550. for linkunit in $LIBRARY_LIST; do

  6551.     unset current_extralibs

  6552.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6553.     for comp in ${components}; do

  6554.         enabled $comp || continue

  6555.         comp_extralibs="${comp}_extralibs"

  6556.         append current_extralibs $comp_extralibs

  6557.     done

  6558.     eval prepend ${linkunit}_extralibs $current_extralibs

  6559. done

  6560. 

  6561. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6562.     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)

  6563. done

  6564. 

  6565. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6566. 

  6567. for thread in $THREADS_LIST; do

  6568.     if enabled $thread; then

  6569.         test -n "$thread_type" &&

  6570.             die "ERROR: Only one thread type must be selected." ||

  6571.             thread_type="$thread"

  6572.     fi

  6573. done

  6574. 

  6575. if disabled stdatomic; then

  6576.     if enabled atomics_gcc; then

  6577.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6578.     elif enabled atomics_win32; then

  6579.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6580.     elif enabled atomics_suncc; then

  6581.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6582.     elif enabled pthreads; then

  6583.         add_compat atomics/pthread/stdatomic.o

  6584.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6585.     else

  6586.         enabled threads && die "Threading is enabled, but no atomics are available"

  6587.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6588.     fi

  6589. fi

  6590. 

  6591. # Check if requested libraries were found.

  6592. for lib in $AUTODETECT_LIBS; do

  6593.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6594. done

  6595. 

  6596. enabled zlib && add_cppflags -DZLIB_CONST

  6597. 

  6598. # conditional library dependencies, in linking order

  6599. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6600. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6601. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6602. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6603. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6604. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6605. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6606. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6607. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6608. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6609. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6610. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6611. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6612. enabled pan_filter          && prepend avfilter_deps "swresample"

  6613. enabled pp_filter           && prepend avfilter_deps "postproc"

  6614. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6615. enabled resample_filter && prepend avfilter_deps "avresample"

  6616. enabled sab_filter          && prepend avfilter_deps "swscale"

  6617. enabled scale_filter    && prepend avfilter_deps "swscale"

  6618. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6619. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6620. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6621. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6622. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6623. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6624. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6625. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6626. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6627. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6628. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6629. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6630. 

  6631. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6632. 

  6633. #FIXME

  6634. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6635. 

  6636. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6637. 

  6638. expand_deps(){

  6639.     lib_deps=${1}_deps

  6640.     eval "deps=\$$lib_deps"

  6641.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6642.     unique $lib_deps

  6643. }

  6644. 

  6645. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6646. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6647. 

  6648. map 'expand_deps $v' $LIBRARY_LIST

  6649. 

  6650. license="LGPL version 2.1 or later"

  6651. if enabled nonfree; then

  6652.     license="nonfree and unredistributable"

  6653. elif enabled gplv3; then

  6654.     license="GPL version 3 or later"

  6655. elif enabled lgplv3; then

  6656.     license="LGPL version 3 or later"

  6657. elif enabled gpl; then

  6658.     license="GPL version 2 or later"

  6659. fi

  6660. 

  6661. if test "$quiet" != "yes"; then

  6662. 

  6663. echo "install prefix            $prefix"

  6664. echo "source path               $source_path"

  6665. echo "C compiler                $cc"

  6666. echo "C library                 $libc_type"

  6667. if test "$host_cc" != "$cc"; then

  6668.     echo "host C compiler           $host_cc"

  6669.     echo "host C library            $host_libc_type"

  6670. fi

  6671. echo "ARCH                      $arch ($cpu)"

  6672. if test "$build_suffix" != ""; then

  6673.     echo "build suffix              $build_suffix"

  6674. fi

  6675. if test "$progs_suffix" != ""; then

  6676.     echo "progs suffix              $progs_suffix"

  6677. fi

  6678. if test "$extra_version" != ""; then

  6679.     echo "version string suffix     $extra_version"

  6680. fi

  6681. echo "big-endian                ${bigendian-no}"

  6682. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6683. if enabled x86; then

  6684.     echo "standalone assembly       ${x86asm-no}"

  6685.     echo "x86 assembler             ${x86asmexe}"

  6686.     echo "MMX enabled               ${mmx-no}"

  6687.     echo "MMXEXT enabled            ${mmxext-no}"

  6688.     echo "3DNow! enabled            ${amd3dnow-no}"

  6689.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6690.     echo "SSE enabled               ${sse-no}"

  6691.     echo "SSSE3 enabled             ${ssse3-no}"

  6692.     echo "AESNI enabled             ${aesni-no}"

  6693.     echo "AVX enabled               ${avx-no}"

  6694.     echo "AVX2 enabled              ${avx2-no}"

  6695.     echo "XOP enabled               ${xop-no}"

  6696.     echo "FMA3 enabled              ${fma3-no}"

  6697.     echo "FMA4 enabled              ${fma4-no}"

  6698.     echo "i686 features enabled     ${i686-no}"

  6699.     echo "CMOV is fast              ${fast_cmov-no}"

  6700.     echo "EBX available             ${ebx_available-no}"

  6701.     echo "EBP available             ${ebp_available-no}"

  6702. fi

  6703. if enabled aarch64; then

  6704.     echo "NEON enabled              ${neon-no}"

  6705.     echo "VFP enabled               ${vfp-no}"

  6706. fi

  6707. if enabled arm; then

  6708.     echo "ARMv5TE enabled           ${armv5te-no}"

  6709.     echo "ARMv6 enabled             ${armv6-no}"

  6710.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6711.     echo "VFP enabled               ${vfp-no}"

  6712.     echo "NEON enabled              ${neon-no}"

  6713.     echo "THUMB enabled             ${thumb-no}"

  6714. fi

  6715. if enabled mips; then

  6716.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6717.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6718.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6719.     echo "MIPS MSA enabled          ${msa-no}"

  6720.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6721. fi

  6722. if enabled ppc; then

  6723.     echo "AltiVec enabled           ${altivec-no}"

  6724.     echo "VSX enabled               ${vsx-no}"

  6725.     echo "POWER8 enabled            ${power8-no}"

  6726.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6727.     echo "dcbzl available           ${dcbzl-no}"

  6728. fi

  6729. echo "debug symbols             ${debug-no}"

  6730. echo "strip symbols             ${stripping-no}"

  6731. echo "optimize for size         ${small-no}"

  6732. echo "optimizations             ${optimizations-no}"

  6733. echo "static                    ${static-no}"

  6734. echo "shared                    ${shared-no}"

  6735. echo "postprocessing support    ${postproc-no}"

  6736. echo "network support           ${network-no}"

  6737. echo "threading support         ${thread_type-no}"

  6738. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6739. echo "texi2html enabled         ${texi2html-no}"

  6740. echo "perl enabled              ${perl-no}"

  6741. echo "pod2man enabled           ${pod2man-no}"

  6742. echo "makeinfo enabled          ${makeinfo-no}"

  6743. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6744. test -n "$random_seed" &&

  6745.     echo "random seed               ${random_seed}"

  6746. echo

  6747. 

  6748. echo "External libraries:"

  6749. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6750. echo

  6751. 

  6752. echo "External libraries providing hardware acceleration:"

  6753. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6754. echo

  6755. 

  6756. echo "Libraries:"

  6757. print_enabled '' $LIBRARY_LIST | print_in_columns

  6758. echo

  6759. 

  6760. echo "Programs:"

  6761. print_enabled '' $PROGRAM_LIST | print_in_columns

  6762. echo

  6763. 

  6764. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6765.     echo "Enabled ${type}s:"

  6766.     eval list=\$$(toupper $type)_LIST

  6767.     print_enabled '_*' $list | print_in_columns

  6768.     echo

  6769. done

  6770. 

  6771. if test -n "$ignore_tests"; then

  6772.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6773.     echo "Ignored FATE tests:"

  6774.     echo $ignore_tests | print_in_columns

  6775.     echo

  6776. fi

  6777. 

  6778. echo "License: $license"

  6779. 

  6780. fi # test "$quiet" != "yes"

  6781. 

  6782. if test -n "$WARNINGS"; then

  6783.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6784.     enabled fatal_warnings && exit 1

  6785. fi

  6786. 

  6787. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6788. 

  6789. esc(){

  6790.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  6791. }

  6792. 

  6793. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  6794. 

  6795. enabled stripping || strip="echo skipping strip"

  6796. enabled stripping || striptype=""

  6797. 

  6798. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6799. 

  6800. cat > ffbuild/config.mak <<EOF

  6801. # Automatically generated by configure - do not modify!

  6802. ifndef FFMPEG_CONFIG_MAK

  6803. FFMPEG_CONFIG_MAK=1

  6804. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6805. prefix=$prefix

  6806. LIBDIR=\$(DESTDIR)$libdir

  6807. SHLIBDIR=\$(DESTDIR)$shlibdir

  6808. INCDIR=\$(DESTDIR)$incdir

  6809. BINDIR=\$(DESTDIR)$bindir

  6810. DATADIR=\$(DESTDIR)$datadir

  6811. DOCDIR=\$(DESTDIR)$docdir

  6812. MANDIR=\$(DESTDIR)$mandir

  6813. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6814. INSTALL_NAME_DIR=$install_name_dir

  6815. SRC_PATH=$source_path

  6816. SRC_LINK=$source_link

  6817. ifndef MAIN_MAKEFILE

  6818. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6819. endif

  6820. CC_IDENT=$cc_ident

  6821. ARCH=$arch

  6822. INTRINSICS=$intrinsics

  6823. EXTERN_PREFIX=$extern_prefix

  6824. CC=$cc

  6825. CXX=$cxx

  6826. AS=$as

  6827. OBJCC=$objcc

  6828. LD=$ld

  6829. DEPCC=$dep_cc

  6830. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6831. DEPAS=$as

  6832. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6833. X86ASM=$x86asmexe

  6834. DEPX86ASM=$x86asmexe

  6835. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6836. AR=$ar

  6837. ARFLAGS=$arflags

  6838. AR_O=$ar_o

  6839. AR_CMD=$ar

  6840. NM_CMD=$nm

  6841. RANLIB=$ranlib

  6842. STRIP=$strip

  6843. STRIPTYPE=$striptype

  6844. NVCC=$nvcc

  6845. CP=cp -p

  6846. LN_S=$ln_s

  6847. CPPFLAGS=$CPPFLAGS

  6848. CFLAGS=$CFLAGS

  6849. CXXFLAGS=$CXXFLAGS

  6850. OBJCFLAGS=$OBJCFLAGS

  6851. ASFLAGS=$ASFLAGS

  6852. NVCCFLAGS=$nvccflags

  6853. AS_C=$AS_C

  6854. AS_O=$AS_O

  6855. OBJCC_C=$OBJCC_C

  6856. OBJCC_E=$OBJCC_E

  6857. OBJCC_O=$OBJCC_O

  6858. CC_C=$CC_C

  6859. CC_E=$CC_E

  6860. CC_O=$CC_O

  6861. CXX_C=$CXX_C

  6862. CXX_O=$CXX_O

  6863. NVCC_C=$NVCC_C

  6864. NVCC_O=$NVCC_O

  6865. LD_O=$LD_O

  6866. X86ASM_O=$X86ASM_O

  6867. LD_LIB=$LD_LIB

  6868. LD_PATH=$LD_PATH

  6869. WINDRES=$windres

  6870. DEPWINDRES=$dep_cc

  6871. DOXYGEN=$doxygen

  6872. LDFLAGS=$LDFLAGS

  6873. LDEXEFLAGS=$LDEXEFLAGS

  6874. LDSOFLAGS=$LDSOFLAGS

  6875. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6876. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6877. X86ASMFLAGS=$X86ASMFLAGS

  6878. BUILDSUF=$build_suffix

  6879. PROGSSUF=$progs_suffix

  6880. FULLNAME=$FULLNAME

  6881. LIBPREF=$LIBPREF

  6882. LIBSUF=$LIBSUF

  6883. LIBNAME=$LIBNAME

  6884. SLIBPREF=$SLIBPREF

  6885. SLIBSUF=$SLIBSUF

  6886. EXESUF=$EXESUF

  6887. EXTRA_VERSION=$extra_version

  6888. CCDEP=$CCDEP

  6889. CXXDEP=$CXXDEP

  6890. CCDEP_FLAGS=$CCDEP_FLAGS

  6891. ASDEP=$ASDEP

  6892. ASDEP_FLAGS=$ASDEP_FLAGS

  6893. X86ASMDEP=$X86ASMDEP

  6894. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6895. CC_DEPFLAGS=$CC_DEPFLAGS

  6896. AS_DEPFLAGS=$AS_DEPFLAGS

  6897. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6898. HOSTCC=$host_cc

  6899. HOSTLD=$host_ld

  6900. HOSTCFLAGS=$host_cflags

  6901. HOSTCPPFLAGS=$host_cppflags

  6902. HOSTEXESUF=$HOSTEXESUF

  6903. HOSTLDFLAGS=$host_ldflags

  6904. HOSTEXTRALIBS=$host_extralibs

  6905. DEPHOSTCC=$host_cc

  6906. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6907. HOSTCCDEP=$HOSTCCDEP

  6908. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6909. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6910. HOSTCC_C=$HOSTCC_C

  6911. HOSTCC_O=$HOSTCC_O

  6912. HOSTLD_O=$HOSTLD_O

  6913. TARGET_EXEC=$target_exec $target_exec_args

  6914. TARGET_PATH=$target_path

  6915. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6916. CFLAGS-ffplay=${sdl2_cflags}

  6917. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6918. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6919. EXTRALIBS=$extralibs

  6920. COMPAT_OBJS=$compat_objs

  6921. INSTALL=$install

  6922. SLIBNAME=${SLIBNAME}

  6923. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6924. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6925. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6926. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6927. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6928. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6929. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6930. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6931. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6932. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6933. NOREDZONE_FLAGS=$noredzone_flags

  6934. LIBFUZZER_PATH=$libfuzzer_path

  6935. IGNORE_TESTS=$ignore_tests

  6936. EOF

  6937. 

  6938. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6939. 

  6940. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6941.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  6942. done

  6943. 

  6944. cat > $TMPH <<EOF

  6945. /* Automatically generated by configure - do not modify! */

  6946. #ifndef FFMPEG_CONFIG_H

  6947. #define FFMPEG_CONFIG_H

  6948. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6949. #define FFMPEG_LICENSE "$(c_escape $license)"

  6950. #define CONFIG_THIS_YEAR 2017

  6951. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6952. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6953. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6954. #define av_restrict $_restrict

  6955. #define EXTERN_PREFIX "${extern_prefix}"

  6956. #define EXTERN_ASM ${extern_prefix}

  6957. #define BUILDSUF "$build_suffix"

  6958. #define SLIBSUF "$SLIBSUF"

  6959. #define HAVE_MMX2 HAVE_MMXEXT

  6960. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6961. EOF

  6962. 

  6963. test -n "$assert_level" &&

  6964.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6965. 

  6966. test -n "$malloc_prefix" &&

  6967.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6968. 

  6969. if enabled x86asm; then

  6970.     append config_files $TMPASM

  6971.     cat > $TMPASM <<EOF

  6972. ; Automatically generated by configure - do not modify!

  6973. EOF

  6974. fi

  6975. 

  6976. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6977. 

  6978. 

  6979. mkdir -p doc

  6980. mkdir -p tests

  6981. mkdir -p tests/api

  6982. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6983. 

  6984. print_config ARCH_   "$config_files" $ARCH_LIST

  6985. print_config HAVE_   "$config_files" $HAVE_LIST

  6986. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6987.                                      $CONFIG_EXTRA      \

  6988.                                      $ALL_COMPONENTS    \

  6989. 

  6990. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6991. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6992. 

  6993. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6994. cp_if_changed $TMPH config.h

  6995. touch ffbuild/.config

  6996. 

  6997. enabled x86asm && cp_if_changed $TMPASM config.asm

  6998. 

  6999. cat > $TMPH <<EOF

  7000. /* Generated by ffmpeg configure */

  7001. #ifndef AVUTIL_AVCONFIG_H

  7002. #define AVUTIL_AVCONFIG_H

  7003. EOF

  7004. 

  7005. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7006. 

  7007. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7008. 

  7009. cp_if_changed $TMPH libavutil/avconfig.h

  7010. 

  7011. # generate the lists of enabled components

  7012. print_enabled_components(){

  7013.     file=$1

  7014.     struct_name=$2

  7015.     name=$3

  7016.     shift 3

  7017.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7018.     for c in $*; do

  7019.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  7020.     done

  7021.     echo "    NULL };" >> $TMPH

  7022.     cp_if_changed $TMPH $file

  7023. }

  7024. 

  7025. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7026. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7027. 

  7028. # Settings for pkg-config files

  7029. 

  7030. cat > $TMPH <<EOF

  7031. # Automatically generated by configure - do not modify!

  7032. shared=$shared

  7033. build_suffix=$build_suffix

  7034. prefix=$prefix

  7035. libdir=$libdir

  7036. incdir=$incdir

  7037. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7038. source_path=${source_path}

  7039. LIBPREF=${LIBPREF}

  7040. LIBSUF=${LIBSUF}

  7041. extralibs_avutil="$avutil_extralibs"

  7042. extralibs_avcodec="$avcodec_extralibs"

  7043. extralibs_avformat="$avformat_extralibs"

  7044. extralibs_avdevice="$avdevice_extralibs"

  7045. extralibs_avfilter="$avfilter_extralibs"

  7046. extralibs_avresample="$avresample_extralibs"

  7047. extralibs_postproc="$postproc_extralibs"

  7048. extralibs_swscale="$swscale_extralibs"

  7049. extralibs_swresample="$swresample_extralibs"

  7050. EOF

  7051. 

  7052. for lib in $LIBRARY_LIST; do

  7053.     lib_deps="$(eval echo \$${lib}_deps)"

  7054.     echo ${lib}_deps=\"$lib_deps\" >> $TMPH

  7055. done

  7056. 

  7057. cp_if_changed $TMPH ffbuild/config.sh