falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89608 Commits
32 Branches
817MB
Tree: e24f192a9f
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from 'e24f192a9f'
${ noResults }
FFmpeg/configure

7064 lines
229KB
Raw Blame History 

  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. 

  189. External library support:

  190. 

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

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

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

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

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

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

  197. 

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

  199.   libraries must be explicitly enabled.

  200. 

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

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

  203. 

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

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

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

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

  208.   --disable-bzlib          disable bzlib [autodetect]

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

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

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

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

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

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

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

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

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

  218.   --disable-iconv          disable iconv [autodetect]

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

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

  221.   --enable-libass          enable libass subtitles rendering,

  222.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  229.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  270.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  306. 

  307.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  328. 

  329. Toolchain options:

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

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

  332.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  383. 

  384. Advanced options (experts only):

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

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

  387.   --disable-symver         disable symbol versioning

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

  389.   --disable-safe-bitstream-reader

  390.                            disable buffer boundary checking in bitreaders

  391.                            (faster, but may crash)

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

  393. 

  394. Optimization options (experts only):

  395.   --disable-asm            disable all assembly optimizations

  396.   --disable-altivec        disable AltiVec optimizations

  397.   --disable-vsx            disable VSX optimizations

  398.   --disable-power8         disable POWER8 optimizations

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

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

  401.   --disable-mmx            disable MMX optimizations

  402.   --disable-mmxext         disable MMXEXT optimizations

  403.   --disable-sse            disable SSE optimizations

  404.   --disable-sse2           disable SSE2 optimizations

  405.   --disable-sse3           disable SSE3 optimizations

  406.   --disable-ssse3          disable SSSE3 optimizations

  407.   --disable-sse4           disable SSE4 optimizations

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

  409.   --disable-avx            disable AVX optimizations

  410.   --disable-xop            disable XOP optimizations

  411.   --disable-fma3           disable FMA3 optimizations

  412.   --disable-fma4           disable FMA4 optimizations

  413.   --disable-avx2           disable AVX2 optimizations

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

  415.   --disable-aesni          disable AESNI optimizations

  416.   --disable-armv5te        disable armv5te optimizations

  417.   --disable-armv6          disable armv6 optimizations

  418.   --disable-armv6t2        disable armv6t2 optimizations

  419.   --disable-vfp            disable VFP optimizations

  420.   --disable-neon           disable NEON optimizations

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

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

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

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

  425.   --disable-msa            disable MSA optimizations

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

  427.   --disable-mmi            disable Loongson SIMD optimizations

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

  429. 

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

  431.   --disable-debug          disable debugging symbols

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

  433.   --disable-optimizations  disable compiler optimizations

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

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

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

  437.                            2 causes a slowdown at runtime.

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

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

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

  441.                            Cannot be combined with --target-exec

  442.   --enable-ftrapv          Trap arithmetic overflows

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

  444.                            \$FATE_SAMPLES at make invocation time.

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

  446.                            used only for debugging purposes)

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

  448.                            should be used only for debugging purposes)

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

  450.   --disable-random

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

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

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

  454.                            (group) and PROB the probability associated with

  455.                            NAME (default 0.5).

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

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

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

  459.   --enable-osfuzz          Enable building fuzzer tool

  460.   --libfuzzer=PATH         path to libfuzzer

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

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

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

  464. 

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

  466. EOF

  467.   exit 0

  468. }

  469. 

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

  471.     ncolors=$(tput colors)

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

  473.         bold_color=$(tput bold)

  474.         warn_color=$(tput setaf 3)

  475.         error_color=$(tput setaf 1)

  476.         reset_color=$(tput sgr0)

  477.     fi

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

  479.     ncols=$(tput cols)

  480. fi

  481. : ${ncols:=72}

  482. 

  483. log(){

  484.     echo "$@" >> $logfile

  485. }

  486. 

  487. log_file(){

  488.     log BEGIN $1

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

  490.     log END $1

  491. }

  492. 

  493. warn(){

  494.     log "WARNING: $*"

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

  496. }

  497. 

  498. die(){

  499.     log "$@"

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

  501.     cat <<EOF

  502. 

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

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

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

  506. EOF

  507.     if disabled logging; then

  508.         cat <<EOF

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

  510. include the log this produces with your report.

  511. EOF

  512.     else

  513.         cat <<EOF

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

  515. solve the problem.

  516. EOF

  517.     fi

  518.     exit 1

  519. }

  520. 

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

  522. toupper(){

  523.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  524. }

  525. 

  526. tolower(){

  527.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  528. }

  529. 

  530. c_escape(){

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

  532. }

  533. 

  534. sh_quote(){

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

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

  537.     echo "$v"

  538. }

  539. 

  540. cleanws(){

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

  542. }

  543. 

  544. filter(){

  545.     pat=$1

  546.     shift

  547.     for v; do

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

  549.     done

  550. }

  551. 

  552. filter_out(){

  553.     pat=$1

  554.     shift

  555.     for v; do

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

  557.     done

  558. }

  559. 

  560. map(){

  561.     m=$1

  562.     shift

  563.     for v; do eval $m; done

  564. }

  565. 

  566. add_suffix(){

  567.     suffix=$1

  568.     shift

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

  570. }

  571. 

  572. set_all(){

  573.     value=$1

  574.     shift

  575.     for var in $*; do

  576.         eval $var=$value

  577.     done

  578. }

  579. 

  580. set_weak(){

  581.     value=$1

  582.     shift

  583.     for var; do

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

  585.     done

  586. }

  587. 

  588. sanitize_var_name(){

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

  590. }

  591. 

  592. set_sanitized(){

  593.     var=$1

  594.     shift

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

  596. }

  597. 

  598. get_sanitized(){

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

  600. }

  601. 

  602. pushvar(){

  603.     for pvar in $*; do

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

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

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

  607.     done

  608. }

  609. 

  610. popvar(){

  611.     for pvar in $*; do

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

  613.         test $level = 0 && continue

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

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

  616.         eval ${pvar}_level=$level

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

  618.     done

  619. }

  620. 

  621. request(){

  622.     for var in $*; do

  623.         eval ${var}_requested=yes

  624.         eval $var=

  625.     done

  626. }

  627. 

  628. enable(){

  629.     set_all yes $*

  630. }

  631. 

  632. disable(){

  633.     set_all no $*

  634. }

  635. 

  636. enable_weak(){

  637.     set_weak yes $*

  638. }

  639. 

  640. disable_weak(){

  641.     set_weak no $*

  642. }

  643. 

  644. enable_sanitized(){

  645.     for var; do

  646.         enable $(sanitize_var_name $var)

  647.     done

  648. }

  649. 

  650. disable_sanitized(){

  651.     for var; do

  652.         disable $(sanitize_var_name $var)

  653.     done

  654. }

  655. 

  656. do_enable_deep(){

  657.     for var; do

  658.         enabled $var && continue

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

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

  661.         pushvar var sgs

  662.         enable_deep $sel

  663.         popvar sgs

  664.         enable_deep_weak $sgs

  665.         popvar var

  666.     done

  667. }

  668. 

  669. enable_deep(){

  670.     do_enable_deep $*

  671.     enable $*

  672. }

  673. 

  674. enable_deep_weak(){

  675.     for var; do

  676.         disabled $var && continue

  677.         pushvar var

  678.         do_enable_deep $var

  679.         popvar var

  680.         enable_weak $var

  681.     done

  682. }

  683. 

  684. requested(){

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

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

  687. }

  688. 

  689. enabled(){

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

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

  692. }

  693. 

  694. disabled(){

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

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

  697. }

  698. 

  699. enabled_all(){

  700.     for opt; do

  701.         enabled $opt || return 1

  702.     done

  703. }

  704. 

  705. disabled_all(){

  706.     for opt; do

  707.         disabled $opt || return 1

  708.     done

  709. }

  710. 

  711. enabled_any(){

  712.     for opt; do

  713.         enabled $opt && return 0

  714.     done

  715. }

  716. 

  717. disabled_any(){

  718.     for opt; do

  719.         disabled $opt && return 0

  720.     done

  721.     return 1

  722. }

  723. 

  724. set_default(){

  725.     for opt; do

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

  727.     done

  728. }

  729. 

  730. is_in(){

  731.     value=$1

  732.     shift

  733.     for var in $*; do

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

  735.     done

  736.     return 1

  737. }

  738. 

  739. check_deps(){

  740.     for cfg; do

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

  742.         disabled ${cfg}_checking && continue

  743.         enable ${cfg}_checking

  744. 

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

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

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

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

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

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

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

  752. 

  753.         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

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

  755.         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn

  756. 

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

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

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

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

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

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

  763. 

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

  765. 

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

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

  768.             is_in $dep $LIBRARY_LIST && continue

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

  770.         done

  771. 

  772.         disable ${cfg}_checking

  773.     done

  774. }

  775. 

  776. print_config(){

  777.     pfx=$1

  778.     files=$2

  779.     shift 2

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

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

  782.         {

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

  784.             v = \$2;

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

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

  787.             for (f in files) {

  788.                 file = files[f];

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

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

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

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

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

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

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

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

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

  798.                     yesno = \$2;

  799.                     c2 = tolower(c);

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

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

  802.                 }

  803.             }

  804.         }"

  805. }

  806. 

  807. print_enabled(){

  808.     suf=$1

  809.     shift

  810.     for v; do

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

  812.     done

  813. }

  814. 

  815. append(){

  816.     var=$1

  817.     shift

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

  819. }

  820. 

  821. prepend(){

  822.     var=$1

  823.     shift

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

  825. }

  826. 

  827. unique(){

  828.     var=$1

  829.     uniq_list=""

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

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

  832.     done

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

  834. }

  835. 

  836. resolve(){

  837.     var=$1

  838.     tmpvar=

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

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

  841.     done

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

  843. }

  844. 

  845. add_cppflags(){

  846.     append CPPFLAGS "$@"

  847. }

  848. 

  849. add_cflags(){

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

  851. }

  852. 

  853. add_cflags_headers(){

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

  855. }

  856. 

  857. add_cxxflags(){

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

  859. }

  860. 

  861. add_asflags(){

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

  863. }

  864. 

  865. add_objcflags(){

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

  867. }

  868. 

  869. add_ldflags(){

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

  871. }

  872. 

  873. add_ldexeflags(){

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

  875. }

  876. 

  877. add_ldsoflags(){

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

  879. }

  880. 

  881. add_stripflags(){

  882.     append ASMSTRIPFLAGS "$@"

  883. }

  884. 

  885. add_extralibs(){

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

  887. }

  888. 

  889. add_host_cppflags(){

  890.     append host_cppflags "$@"

  891. }

  892. 

  893. add_host_cflags(){

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

  895. }

  896. 

  897. add_host_ldflags(){

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

  899. }

  900. 

  901. add_compat(){

  902.     append compat_objs $1

  903.     shift

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

  905. }

  906. 

  907. check_cmd(){

  908.     log "$@"

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

  910. }

  911. 

  912. check_stat(){

  913.     log check_stat "$@"

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

  915. }

  916. 

  917. cc_o(){

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

  919. }

  920. 

  921. cc_e(){

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

  923. }

  924. 

  925. check_cc(){

  926.     log check_cc "$@"

  927.     cat > $TMPC

  928.     log_file $TMPC

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

  930. }

  931. 

  932. check_cxx(){

  933.     log check_cxx "$@"

  934.     cat > $TMPCPP

  935.     log_file $TMPCPP

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

  937. }

  938. 

  939. check_objcc(){

  940.     log check_objcc "$@"

  941.     cat > $TMPM

  942.     log_file $TMPM

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

  944. }

  945. 

  946. check_cpp(){

  947.     log check_cpp "$@"

  948.     cat > $TMPC

  949.     log_file $TMPC

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

  951. }

  952. 

  953. as_o(){

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

  955. }

  956. 

  957. check_as(){

  958.     log check_as "$@"

  959.     cat > $TMPS

  960.     log_file $TMPS

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

  962. }

  963. 

  964. check_inline_asm(){

  965.     log check_inline_asm "$@"

  966.     name="$1"

  967.     code="$2"

  968.     shift 2

  969.     disable $name

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

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

  972. EOF

  973. }

  974. 

  975. check_inline_asm_flags(){

  976.     log check_inline_asm_flags "$@"

  977.     name="$1"

  978.     code="$2"

  979.     flags=''

  980.     shift 2

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

  982.       append flags $1

  983.       shift

  984.     done;

  985.     disable $name

  986.     cat > $TMPC <<EOF

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

  988. EOF

  989.     log_file $TMPC

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

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

  992. }

  993. 

  994. check_insn(){

  995.     log check_insn "$@"

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

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

  998. }

  999. 

  1000. check_x86asm(){

  1001.     log check_x86asm "$@"

  1002.     echo "$1" > $TMPS

  1003.     log_file $TMPS

  1004.     shift 1

  1005.     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS

  1006. }

  1007. 

  1008. ld_o(){

  1009.     eval printf '%s\\n' $LD_O

  1010. }

  1011. 

  1012. check_ld(){

  1013.     log check_ld "$@"

  1014.     type=$1

  1015.     shift 1

  1016.     flags=$(filter_out '-l*|*.so' $@)

  1017.     libs=$(filter '-l*|*.so' $@)

  1018.     check_$type $($cflags_filter $flags) || return

  1019.     flags=$($ldflags_filter $flags)

  1020.     libs=$($ldflags_filter $libs)

  1021.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1022. }

  1023. 

  1024. print_include(){

  1025.     hdr=$1

  1026.     test "${hdr%.h}" = "${hdr}" &&

  1027.         echo "#include $hdr"    ||

  1028.         echo "#include <$hdr>"

  1029. }

  1030. 

  1031. check_code(){

  1032.     log check_code "$@"

  1033.     check=$1

  1034.     headers=$2

  1035.     code=$3

  1036.     shift 3

  1037.     {

  1038.         for hdr in $headers; do

  1039.             print_include $hdr

  1040.         done

  1041.         echo "int main(void) { $code; return 0; }"

  1042.     } | check_$check "$@"

  1043. }

  1044. 

  1045. check_cppflags(){

  1046.     log check_cppflags "$@"

  1047.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1048. #include <stdlib.h>

  1049. EOF

  1050. }

  1051. 

  1052. test_cflags(){

  1053.     log test_cflags "$@"

  1054.     set -- $($cflags_filter "$@")

  1055.     check_cc "$@" <<EOF

  1056. int x;

  1057. EOF

  1058. }

  1059. 

  1060. check_cflags(){

  1061.     log check_cflags "$@"

  1062.     test_cflags "$@" && add_cflags "$@"

  1063. }

  1064. 

  1065. check_cxxflags(){

  1066.     log check_cxxflags "$@"

  1067.     set -- $($cflags_filter "$@")

  1068.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1069. int x;

  1070. EOF

  1071. }

  1072. 

  1073. test_objcflags(){

  1074.     log test_objcflags "$@"

  1075.     set -- $($objcflags_filter "$@")

  1076.     check_objcc "$@" <<EOF

  1077. int x;

  1078. EOF

  1079. }

  1080. 

  1081. check_objcflags(){

  1082.     log check_objcflags "$@"

  1083.     test_objcflags "$@" && add_objcflags "$@"

  1084. }

  1085. 

  1086. test_ldflags(){

  1087.     log test_ldflags "$@"

  1088.     set -- $($ldflags_filter "$@")

  1089.     check_ld "cc" "$@" <<EOF

  1090. int main(void){ return 0; }

  1091. EOF

  1092. }

  1093. 

  1094. check_ldflags(){

  1095.     log check_ldflags "$@"

  1096.     test_ldflags "$@" && add_ldflags "$@"

  1097. }

  1098. 

  1099. test_stripflags(){

  1100.     log test_stripflags "$@"

  1101.     # call check_cc to get a fresh TMPO

  1102.     check_cc <<EOF

  1103. int main(void) { return 0; }

  1104. EOF

  1105.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1106. }

  1107. 

  1108. check_stripflags(){

  1109.     log check_stripflags "$@"

  1110.     test_stripflags "$@" && add_stripflags "$@"

  1111. }

  1112. 

  1113. check_header(){

  1114.     log check_header "$@"

  1115.     headers=$1

  1116.     shift

  1117.     disable_sanitized $headers

  1118.     {

  1119.         for hdr in $headers; do

  1120.             print_include $hdr

  1121.         done

  1122.         echo "int x;"

  1123.     } | check_cpp "$@" && enable_sanitized $headers

  1124. }

  1125. 

  1126. check_header_objcc(){

  1127.     log check_header_objcc "$@"

  1128.     rm -f -- "$TMPO"

  1129.     header=$1

  1130.     shift

  1131.     disable_sanitized $header

  1132.     {

  1133.        echo "#include <$header>"

  1134.        echo "int main(void) { return 0; }"

  1135.     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header

  1136. }

  1137. 

  1138. check_apple_framework(){

  1139.     log check_apple_framework "$@"

  1140.     framework="$1"

  1141.     name="$(tolower $framework)"

  1142.     header="${framework}/${framework}.h"

  1143.     disable $name

  1144.     check_header_objcc $header &&

  1145.         enable $name && eval ${name}_extralibs='"-framework $framework"'

  1146. }

  1147. 

  1148. check_func(){

  1149.     log check_func "$@"

  1150.     func=$1

  1151.     shift

  1152.     disable $func

  1153.     check_ld "cc" "$@" <<EOF && enable $func

  1154. extern int $func();

  1155. int main(void){ $func(); }

  1156. EOF

  1157. }

  1158. 

  1159. check_complexfunc(){

  1160.     log check_complexfunc "$@"

  1161.     func=$1

  1162.     narg=$2

  1163.     shift 2

  1164.     test $narg = 2 && args="f, g" || args="f * I"

  1165.     disable $func

  1166.     check_ld "cc" "$@" <<EOF && enable $func

  1167. #include <complex.h>

  1168. #include <math.h>

  1169. float foo(complex float f, complex float g) { return $func($args); }

  1170. int main(void){ return (int) foo; }

  1171. EOF

  1172. }

  1173. 

  1174. check_mathfunc(){

  1175.     log check_mathfunc "$@"

  1176.     func=$1

  1177.     narg=$2

  1178.     shift 2

  1179.     test $narg = 2 && args="f, g" || args="f"

  1180.     disable $func

  1181.     check_ld "cc" "$@" <<EOF && enable $func

  1182. #include <math.h>

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

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

  1185. EOF

  1186. }

  1187. 

  1188. check_func_headers(){

  1189.     log check_func_headers "$@"

  1190.     headers=$1

  1191.     funcs=$2

  1192.     shift 2

  1193.     {

  1194.         for hdr in $headers; do

  1195.             print_include $hdr

  1196.         done

  1197.         echo "#include <stdint.h>"

  1198.         for func in $funcs; do

  1199.             echo "long check_$func(void) { return (long) $func; }"

  1200.         done

  1201.         echo "int main(void) { int ret = 0;"

  1202.         # LTO could optimize out the test functions without this

  1203.         for func in $funcs; do

  1204.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1205.         done

  1206.         echo "return ret; }"

  1207.     } | check_ld "cc" "$@" && enable $funcs && enable_sanitized $headers

  1208. }

  1209. 

  1210. check_class_headers_cpp(){

  1211.     log check_class_headers_cpp "$@"

  1212.     headers=$1

  1213.     classes=$2

  1214.     shift 2

  1215.     {

  1216.         for hdr in $headers; do

  1217.             echo "#include <$hdr>"

  1218.         done

  1219.         echo "int main(void) { "

  1220.         i=1

  1221.         for class in $classes; do

  1222.             echo "$class obj$i;"

  1223.             i=$(expr $i + 1)

  1224.         done

  1225.         echo "return 0; }"

  1226.     } | check_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers

  1227. }

  1228. 

  1229. check_cpp_condition(){

  1230.     log check_cpp_condition "$@"

  1231.     header=$1

  1232.     condition=$2

  1233.     shift 2

  1234.     check_cpp "$@" <<EOF

  1235. #include <$header>

  1236. #if !($condition)

  1237. #error "unsatisfied condition: $condition"

  1238. #endif

  1239. EOF

  1240. }

  1241. 

  1242. test_cflags_cc(){

  1243.     log test_cflags_cc "$@"

  1244.     flags=$1

  1245.     header=$2

  1246.     condition=$3

  1247.     shift 3

  1248.     set -- $($cflags_filter "$flags")

  1249.     check_cc "$@" <<EOF

  1250. #include <$header>

  1251. #if !($condition)

  1252. #error "unsatisfied condition: $condition"

  1253. #endif

  1254. EOF

  1255. }

  1256. 

  1257. check_lib(){

  1258.     log check_lib "$@"

  1259.     name="$1"

  1260.     headers="$2"

  1261.     funcs="$3"

  1262.     shift 3

  1263.     disable $name

  1264.     check_func_headers "$headers" "$funcs" "$@" &&

  1265.         enable $name && eval ${name}_extralibs="\$@"

  1266. }

  1267. 

  1268. check_lib_cpp(){

  1269.     log check_lib_cpp "$@"

  1270.     name="$1"

  1271.     headers="$2"

  1272.     classes="$3"

  1273.     shift 3

  1274.     disable $name

  1275.     check_class_headers_cpp "$headers" "$classes" "$@" &&

  1276.         enable $name && eval ${name}_extralibs="\$@"

  1277. }

  1278. 

  1279. test_pkg_config(){

  1280.     log test_pkg_config "$@"

  1281.     name="$1"

  1282.     pkg_version="$2"

  1283.     pkg="${2%% *}"

  1284.     headers="$3"

  1285.     funcs="$4"

  1286.     shift 4

  1287.     disable $name

  1288.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1289.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1290.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1291.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1292.         enable $name &&

  1293.         set_sanitized "${name}_cflags"    $pkg_cflags &&

  1294.         set_sanitized "${name}_extralibs" $pkg_libs

  1295. }

  1296. 

  1297. check_pkg_config(){

  1298.     log check_pkg_config "$@"

  1299.     name="$1"

  1300.     test_pkg_config "$@" &&

  1301.         eval add_cflags \$${name}_cflags

  1302. }

  1303. 

  1304. check_exec(){

  1305.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1306. }

  1307. 

  1308. check_exec_crash(){

  1309.     log check_exec_crash "$@"

  1310.     code=$(cat)

  1311. 

  1312.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1313.     # are safe but may not be available everywhere.  Thus we use

  1314.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1315.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1316.     # is not defined by standard C so it is used conditionally.

  1317. 

  1318.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1319. #include <signal.h>

  1320. static void sighandler(int sig){

  1321.     raise(SIGTERM);

  1322. }

  1323. int foo(void){

  1324.     $code

  1325. }

  1326. int (*func_ptr)(void) = foo;

  1327. int main(void){

  1328.     signal(SIGILL, sighandler);

  1329.     signal(SIGFPE, sighandler);

  1330.     signal(SIGSEGV, sighandler);

  1331. #ifdef SIGBUS

  1332.     signal(SIGBUS, sighandler);

  1333. #endif

  1334.     return func_ptr();

  1335. }

  1336. EOF

  1337. }

  1338. 

  1339. check_type(){

  1340.     log check_type "$@"

  1341.     headers=$1

  1342.     type=$2

  1343.     shift 2

  1344.     disable_sanitized "$type"

  1345.     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"

  1346. }

  1347. 

  1348. check_struct(){

  1349.     log check_struct "$@"

  1350.     headers=$1

  1351.     struct=$2

  1352.     member=$3

  1353.     shift 3

  1354.     disable_sanitized "${struct}_${member}"

  1355.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1356.         enable_sanitized "${struct}_${member}"

  1357. }

  1358. 

  1359. check_builtin(){

  1360.     log check_builtin "$@"

  1361.     name=$1

  1362.     headers=$2

  1363.     builtin=$3

  1364.     shift 3

  1365.     disable "$name"

  1366.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1367. }

  1368. 

  1369. check_compile_assert(){

  1370.     log check_compile_assert "$@"

  1371.     name=$1

  1372.     headers=$2

  1373.     condition=$3

  1374.     shift 3

  1375.     disable "$name"

  1376.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1377. }

  1378. 

  1379. require(){

  1380.     log require "$@"

  1381.     name_version="$1"

  1382.     name="${1%% *}"

  1383.     headers="$2"

  1384.     func="$3"

  1385.     shift 3

  1386.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1387. }

  1388. 

  1389. require_cpp(){

  1390.     name="$1"

  1391.     headers="$2"

  1392.     classes="$3"

  1393.     shift 3

  1394.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1395. }

  1396. 

  1397. require_header(){

  1398.     log require_header "$@"

  1399.     headers="$1"

  1400.     shift

  1401.     check_header "$headers" "$@" || die "ERROR: $headers not found"

  1402. }

  1403. 

  1404. require_cpp_condition(){

  1405.     log require_cpp_condition "$@"

  1406.     header="$1"

  1407.     condition="$2"

  1408.     shift 2

  1409.     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"

  1410. }

  1411. 

  1412. require_pkg_config(){

  1413.     log require_pkg_config "$@"

  1414.     pkg_version="$2"

  1415.     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"

  1416. }

  1417. 

  1418. hostcc_e(){

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

  1420. }

  1421. 

  1422. hostcc_o(){

  1423.     eval printf '%s\\n' $HOSTCC_O

  1424. }

  1425. 

  1426. check_host_cc(){

  1427.     log check_host_cc "$@"

  1428.     cat > $TMPC

  1429.     log_file $TMPC

  1430.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1431. }

  1432. 

  1433. check_host_cpp(){

  1434.     log check_host_cpp "$@"

  1435.     cat > $TMPC

  1436.     log_file $TMPC

  1437.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1438. }

  1439. 

  1440. check_host_cppflags(){

  1441.     log check_host_cppflags "$@"

  1442.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1443. #include <stdlib.h>

  1444. EOF

  1445. }

  1446. 

  1447. check_host_cflags(){

  1448.     log check_host_cflags "$@"

  1449.     set -- $($host_cflags_filter "$@")

  1450.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1451. int x;

  1452. EOF

  1453. }

  1454. 

  1455. check_host_cpp_condition(){

  1456.     log check_host_cpp_condition "$@"

  1457.     header=$1

  1458.     condition=$2

  1459.     shift 2

  1460.     check_host_cpp "$@" <<EOF

  1461. #include <$header>

  1462. #if !($condition)

  1463. #error "unsatisfied condition: $condition"

  1464. #endif

  1465. EOF

  1466. }

  1467. 

  1468. cp_if_changed(){

  1469.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1470.     mkdir -p "$(dirname $2)"

  1471.     cp -f "$1" "$2"

  1472. }

  1473. 

  1474. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1475. # system-dependent things.

  1476. 

  1477. AVCODEC_COMPONENTS="

  1478.     bsfs

  1479.     decoders

  1480.     encoders

  1481.     hwaccels

  1482.     parsers

  1483. "

  1484. 

  1485. AVDEVICE_COMPONENTS="

  1486.     indevs

  1487.     outdevs

  1488. "

  1489. 

  1490. AVFILTER_COMPONENTS="

  1491.     filters

  1492. "

  1493. 

  1494. AVFORMAT_COMPONENTS="

  1495.     demuxers

  1496.     muxers

  1497.     protocols

  1498. "

  1499. 

  1500. COMPONENT_LIST="

  1501.     $AVCODEC_COMPONENTS

  1502.     $AVDEVICE_COMPONENTS

  1503.     $AVFILTER_COMPONENTS

  1504.     $AVFORMAT_COMPONENTS

  1505. "

  1506. 

  1507. EXAMPLE_LIST="

  1508.     avio_dir_cmd_example

  1509.     avio_reading_example

  1510.     decode_audio_example

  1511.     decode_video_example

  1512.     demuxing_decoding_example

  1513.     encode_audio_example

  1514.     encode_video_example

  1515.     extract_mvs_example

  1516.     filter_audio_example

  1517.     filtering_audio_example

  1518.     filtering_video_example

  1519.     http_multiclient_example

  1520.     hw_decode_example

  1521.     metadata_example

  1522.     muxing_example

  1523.     qsvdec_example

  1524.     remuxing_example

  1525.     resampling_audio_example

  1526.     scaling_video_example

  1527.     transcode_aac_example

  1528.     transcoding_example

  1529.     vaapi_encode_example

  1530. "

  1531. 

  1532. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1533.     alsa

  1534.     appkit

  1535.     avfoundation

  1536.     bzlib

  1537.     coreimage

  1538.     iconv

  1539.     libxcb

  1540.     libxcb_shm

  1541.     libxcb_shape

  1542.     libxcb_xfixes

  1543.     lzma

  1544.     schannel

  1545.     sdl2

  1546.     securetransport

  1547.     sndio

  1548.     xlib

  1549.     zlib

  1550. "

  1551. 

  1552. EXTERNAL_LIBRARY_GPL_LIST="

  1553.     avisynth

  1554.     frei0r

  1555.     libcdio

  1556.     librubberband

  1557.     libvidstab

  1558.     libx264

  1559.     libx265

  1560.     libxavs

  1561.     libxvid

  1562. "

  1563. 

  1564. EXTERNAL_LIBRARY_NONFREE_LIST="

  1565.     decklink

  1566.     libndi_newtek

  1567.     libfdk_aac

  1568.     openssl

  1569.     libtls

  1570. "

  1571. 

  1572. EXTERNAL_LIBRARY_VERSION3_LIST="

  1573.     gmp

  1574.     libopencore_amrnb

  1575.     libopencore_amrwb

  1576.     libvmaf

  1577.     libvo_amrwbenc

  1578.     rkmpp

  1579. "

  1580. 

  1581. EXTERNAL_LIBRARY_GPLV3_LIST="

  1582.     libsmbclient

  1583. "

  1584. 

  1585. EXTERNAL_LIBRARY_LIST="

  1586.     $EXTERNAL_LIBRARY_GPL_LIST

  1587.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1588.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1589.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1590.     chromaprint

  1591.     gcrypt

  1592.     gnutls

  1593.     jni

  1594.     ladspa

  1595.     libass

  1596.     libbluray

  1597.     libbs2b

  1598.     libcaca

  1599.     libcelt

  1600.     libdc1394

  1601.     libdrm

  1602.     libflite

  1603.     libfontconfig

  1604.     libfreetype

  1605.     libfribidi

  1606.     libgme

  1607.     libgsm

  1608.     libiec61883

  1609.     libilbc

  1610.     libjack

  1611.     libkvazaar

  1612.     libmodplug

  1613.     libmp3lame

  1614.     libmysofa

  1615.     libopencv

  1616.     libopenh264

  1617.     libopenjpeg

  1618.     libopenmpt

  1619.     libopus

  1620.     libpulse

  1621.     librsvg

  1622.     librtmp

  1623.     libshine

  1624.     libsmbclient

  1625.     libsnappy

  1626.     libsoxr

  1627.     libspeex

  1628.     libssh

  1629.     libtesseract

  1630.     libtheora

  1631.     libtwolame

  1632.     libv4l2

  1633.     libvorbis

  1634.     libvpx

  1635.     libwavpack

  1636.     libwebp

  1637.     libxml2

  1638.     libzimg

  1639.     libzmq

  1640.     libzvbi

  1641.     lv2

  1642.     mediacodec

  1643.     openal

  1644.     opengl

  1645. "

  1646. 

  1647. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1648.     amf

  1649.     audiotoolbox

  1650.     crystalhd

  1651.     cuda

  1652.     cuvid

  1653.     d3d11va

  1654.     dxva2

  1655.     nvdec

  1656.     nvenc

  1657.     vaapi

  1658.     vdpau

  1659.     videotoolbox

  1660.     v4l2_m2m

  1661.     xvmc

  1662. "

  1663. 

  1664. # catchall list of things that require external libs to link

  1665. EXTRALIBS_LIST="

  1666.     cpu_init

  1667.     cws2fws

  1668. "

  1669. 

  1670. HWACCEL_LIBRARY_NONFREE_LIST="

  1671.     cuda_sdk

  1672.     libnpp

  1673. "

  1674. 

  1675. HWACCEL_LIBRARY_LIST="

  1676.     $HWACCEL_LIBRARY_NONFREE_LIST

  1677.     libmfx

  1678.     mmal

  1679.     omx

  1680.     opencl

  1681. "

  1682. 

  1683. DOCUMENT_LIST="

  1684.     doc

  1685.     htmlpages

  1686.     manpages

  1687.     podpages

  1688.     txtpages

  1689. "

  1690. 

  1691. FEATURE_LIST="

  1692.     ftrapv

  1693.     gray

  1694.     hardcoded_tables

  1695.     omx_rpi

  1696.     runtime_cpudetect

  1697.     safe_bitstream_reader

  1698.     shared

  1699.     small

  1700.     static

  1701.     swscale_alpha

  1702. "

  1703. 

  1704. LIBRARY_LIST="

  1705.     avcodec

  1706.     avdevice

  1707.     avfilter

  1708.     avformat

  1709.     avresample

  1710.     avutil

  1711.     postproc

  1712.     swresample

  1713.     swscale

  1714. "

  1715. 

  1716. LICENSE_LIST="

  1717.     gpl

  1718.     nonfree

  1719.     version3

  1720. "

  1721. 

  1722. PROGRAM_LIST="

  1723.     ffplay

  1724.     ffprobe

  1725.     ffserver

  1726.     ffmpeg

  1727. "

  1728. 

  1729. SUBSYSTEM_LIST="

  1730.     dct

  1731.     dwt

  1732.     error_resilience

  1733.     faan

  1734.     fast_unaligned

  1735.     fft

  1736.     lsp

  1737.     lzo

  1738.     mdct

  1739.     pixelutils

  1740.     network

  1741.     rdft

  1742. "

  1743. 

  1744. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1745. CONFIG_LIST="

  1746.     $DOCUMENT_LIST

  1747.     $EXAMPLE_LIST

  1748.     $EXTERNAL_LIBRARY_LIST

  1749.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1750.     $HWACCEL_LIBRARY_LIST

  1751.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1752.     $FEATURE_LIST

  1753.     $LICENSE_LIST

  1754.     $LIBRARY_LIST

  1755.     $PROGRAM_LIST

  1756.     $SUBSYSTEM_LIST

  1757.     autodetect

  1758.     fontconfig

  1759.     linux_perf

  1760.     memory_poisoning

  1761.     neon_clobber_test

  1762.     ossfuzz

  1763.     pic

  1764.     thumb

  1765.     valgrind_backtrace

  1766.     xmm_clobber_test

  1767.     $COMPONENT_LIST

  1768. "

  1769. 

  1770. THREADS_LIST="

  1771.     pthreads

  1772.     os2threads

  1773.     w32threads

  1774. "

  1775. 

  1776. ATOMICS_LIST="

  1777.     atomics_gcc

  1778.     atomics_suncc

  1779.     atomics_win32

  1780. "

  1781. 

  1782. AUTODETECT_LIBS="

  1783.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1784.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1785.     $THREADS_LIST

  1786. "

  1787. 

  1788. ARCH_LIST="

  1789.     aarch64

  1790.     alpha

  1791.     arm

  1792.     avr32

  1793.     avr32_ap

  1794.     avr32_uc

  1795.     bfin

  1796.     ia64

  1797.     m68k

  1798.     mips

  1799.     mips64

  1800.     parisc

  1801.     ppc

  1802.     ppc64

  1803.     s390

  1804.     sh4

  1805.     sparc

  1806.     sparc64

  1807.     tilegx

  1808.     tilepro

  1809.     tomi

  1810.     x86

  1811.     x86_32

  1812.     x86_64

  1813. "

  1814. 

  1815. ARCH_EXT_LIST_ARM="

  1816.     armv5te

  1817.     armv6

  1818.     armv6t2

  1819.     armv8

  1820.     neon

  1821.     vfp

  1822.     vfpv3

  1823.     setend

  1824. "

  1825. 

  1826. ARCH_EXT_LIST_MIPS="

  1827.     mipsfpu

  1828.     mips32r2

  1829.     mips32r5

  1830.     mips64r2

  1831.     mips32r6

  1832.     mips64r6

  1833.     mipsdsp

  1834.     mipsdspr2

  1835.     msa

  1836. "

  1837. 

  1838. ARCH_EXT_LIST_LOONGSON="

  1839.     loongson2

  1840.     loongson3

  1841.     mmi

  1842. "

  1843. 

  1844. ARCH_EXT_LIST_X86_SIMD="

  1845.     aesni

  1846.     amd3dnow

  1847.     amd3dnowext

  1848.     avx

  1849.     avx2

  1850.     avx512

  1851.     fma3

  1852.     fma4

  1853.     mmx

  1854.     mmxext

  1855.     sse

  1856.     sse2

  1857.     sse3

  1858.     sse4

  1859.     sse42

  1860.     ssse3

  1861.     xop

  1862. "

  1863. 

  1864. ARCH_EXT_LIST_PPC="

  1865.     altivec

  1866.     dcbzl

  1867.     ldbrx

  1868.     power8

  1869.     ppc4xx

  1870.     vsx

  1871. "

  1872. 

  1873. ARCH_EXT_LIST_X86="

  1874.     $ARCH_EXT_LIST_X86_SIMD

  1875.     cpunop

  1876.     i686

  1877. "

  1878. 

  1879. ARCH_EXT_LIST="

  1880.     $ARCH_EXT_LIST_ARM

  1881.     $ARCH_EXT_LIST_PPC

  1882.     $ARCH_EXT_LIST_X86

  1883.     $ARCH_EXT_LIST_MIPS

  1884.     $ARCH_EXT_LIST_LOONGSON

  1885. "

  1886. 

  1887. ARCH_FEATURES="

  1888.     aligned_stack

  1889.     fast_64bit

  1890.     fast_clz

  1891.     fast_cmov

  1892.     local_aligned

  1893.     simd_align_16

  1894.     simd_align_32

  1895.     simd_align_64

  1896. "

  1897. 

  1898. BUILTIN_LIST="

  1899.     atomic_cas_ptr

  1900.     machine_rw_barrier

  1901.     MemoryBarrier

  1902.     mm_empty

  1903.     rdtsc

  1904.     sarestart

  1905.     sem_timedwait

  1906.     sync_val_compare_and_swap

  1907. "

  1908. HAVE_LIST_CMDLINE="

  1909.     inline_asm

  1910.     symver

  1911.     x86asm

  1912. "

  1913. 

  1914. HAVE_LIST_PUB="

  1915.     bigendian

  1916.     fast_unaligned

  1917. "

  1918. 

  1919. HEADERS_LIST="

  1920.     arpa_inet_h

  1921.     asm_types_h

  1922.     cdio_paranoia_h

  1923.     cdio_paranoia_paranoia_h

  1924.     cuda_h

  1925.     dispatch_dispatch_h

  1926.     dev_bktr_ioctl_bt848_h

  1927.     dev_bktr_ioctl_meteor_h

  1928.     dev_ic_bt8xx_h

  1929.     dev_video_bktr_ioctl_bt848_h

  1930.     dev_video_meteor_ioctl_meteor_h

  1931.     direct_h

  1932.     dirent_h

  1933.     dxgidebug_h

  1934.     dxva_h

  1935.     ES2_gl_h

  1936.     gsm_h

  1937.     io_h

  1938.     machine_ioctl_bt848_h

  1939.     machine_ioctl_meteor_h

  1940.     malloc_h

  1941.     opencv2_core_core_c_h

  1942.     OpenGL_gl3_h

  1943.     poll_h

  1944.     sys_param_h

  1945.     sys_resource_h

  1946.     sys_select_h

  1947.     sys_soundcard_h

  1948.     sys_time_h

  1949.     sys_un_h

  1950.     sys_videoio_h

  1951.     termios_h

  1952.     udplite_h

  1953.     unistd_h

  1954.     valgrind_valgrind_h

  1955.     windows_h

  1956.     winsock2_h

  1957. "

  1958. 

  1959. INTRINSICS_LIST="

  1960.     intrinsics_neon

  1961. "

  1962. 

  1963. COMPLEX_FUNCS="

  1964.     cabs

  1965.     cexp

  1966. "

  1967. 

  1968. MATH_FUNCS="

  1969.     atanf

  1970.     atan2f

  1971.     cbrt

  1972.     cbrtf

  1973.     copysign

  1974.     cosf

  1975.     erf

  1976.     exp2

  1977.     exp2f

  1978.     expf

  1979.     hypot

  1980.     isfinite

  1981.     isinf

  1982.     isnan

  1983.     ldexpf

  1984.     llrint

  1985.     llrintf

  1986.     log2

  1987.     log2f

  1988.     log10f

  1989.     lrint

  1990.     lrintf

  1991.     powf

  1992.     rint

  1993.     round

  1994.     roundf

  1995.     sinf

  1996.     trunc

  1997.     truncf

  1998. "

  1999. 

  2000. SYSTEM_FEATURES="

  2001.     atomics_native

  2002.     dos_paths

  2003.     libc_msvcrt

  2004.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2005.     section_data_rel_ro

  2006.     threads

  2007.     uwp

  2008.     winrt

  2009. "

  2010. 

  2011. SYSTEM_FUNCS="

  2012.     access

  2013.     aligned_malloc

  2014.     arc4random

  2015.     clock_gettime

  2016.     closesocket

  2017.     CommandLineToArgvW

  2018.     fcntl

  2019.     getaddrinfo

  2020.     gethrtime

  2021.     getopt

  2022.     GetProcessAffinityMask

  2023.     GetProcessMemoryInfo

  2024.     GetProcessTimes

  2025.     getrusage

  2026.     GetSystemTimeAsFileTime

  2027.     gettimeofday

  2028.     glob

  2029.     glXGetProcAddress

  2030.     gmtime_r

  2031.     inet_aton

  2032.     isatty

  2033.     kbhit

  2034.     localtime_r

  2035.     lstat

  2036.     lzo1x_999_compress

  2037.     mach_absolute_time

  2038.     MapViewOfFile

  2039.     memalign

  2040.     mkstemp

  2041.     mmap

  2042.     mprotect

  2043.     nanosleep

  2044.     PeekNamedPipe

  2045.     posix_memalign

  2046.     pthread_cancel

  2047.     sched_getaffinity

  2048.     SecItemImport

  2049.     SetConsoleTextAttribute

  2050.     SetConsoleCtrlHandler

  2051.     setmode

  2052.     setrlimit

  2053.     Sleep

  2054.     strerror_r

  2055.     sysconf

  2056.     sysctl

  2057.     usleep

  2058.     UTGetOSTypeFromString

  2059.     VirtualAlloc

  2060.     wglGetProcAddress

  2061. "

  2062. 

  2063. SYSTEM_LIBRARIES="

  2064.     vaapi_drm

  2065.     vaapi_x11

  2066.     vdpau_x11

  2067.     wincrypt

  2068. "

  2069. 

  2070. TOOLCHAIN_FEATURES="

  2071.     as_arch_directive

  2072.     as_fpu_directive

  2073.     as_func

  2074.     as_object_arch

  2075.     asm_mod_q

  2076.     blocks_extension

  2077.     ebp_available

  2078.     ebx_available

  2079.     gnu_as

  2080.     gnu_windres

  2081.     ibm_asm

  2082.     inline_asm_direct_symbol_refs

  2083.     inline_asm_labels

  2084.     inline_asm_nonlocal_labels

  2085.     pragma_deprecated

  2086.     rsync_contimeout

  2087.     symver_asm_label

  2088.     symver_gnu_asm

  2089.     vfp_args

  2090.     xform_asm

  2091.     xmm_clobbers

  2092. "

  2093. 

  2094. TYPES_LIST="

  2095.     kCMVideoCodecType_HEVC

  2096.     socklen_t

  2097.     struct_addrinfo

  2098.     struct_group_source_req

  2099.     struct_ip_mreq_source

  2100.     struct_ipv6_mreq

  2101.     struct_msghdr_msg_flags

  2102.     struct_pollfd

  2103.     struct_rusage_ru_maxrss

  2104.     struct_sctp_event_subscribe

  2105.     struct_sockaddr_in6

  2106.     struct_sockaddr_sa_len

  2107.     struct_sockaddr_storage

  2108.     struct_stat_st_mtim_tv_nsec

  2109.     struct_v4l2_frmivalenum_discrete

  2110. "

  2111. 

  2112. HAVE_LIST="

  2113.     $ARCH_EXT_LIST

  2114.     $(add_suffix _external $ARCH_EXT_LIST)

  2115.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2116.     $ARCH_FEATURES

  2117.     $ATOMICS_LIST

  2118.     $BUILTIN_LIST

  2119.     $COMPLEX_FUNCS

  2120.     $HAVE_LIST_CMDLINE

  2121.     $HAVE_LIST_PUB

  2122.     $HEADERS_LIST

  2123.     $INTRINSICS_LIST

  2124.     $MATH_FUNCS

  2125.     $SYSTEM_FEATURES

  2126.     $SYSTEM_FUNCS

  2127.     $SYSTEM_LIBRARIES

  2128.     $THREADS_LIST

  2129.     $TOOLCHAIN_FEATURES

  2130.     $TYPES_LIST

  2131.     makeinfo

  2132.     makeinfo_html

  2133.     opencl_d3d11

  2134.     opencl_drm_arm

  2135.     opencl_dxva2

  2136.     opencl_vaapi_beignet

  2137.     opencl_vaapi_intel_media

  2138.     perl

  2139.     pod2man

  2140.     texi2html

  2141. "

  2142. 

  2143. # options emitted with CONFIG_ prefix but not available on the command line

  2144. CONFIG_EXTRA="

  2145.     aandcttables

  2146.     ac3dsp

  2147.     adts_header

  2148.     audio_frame_queue

  2149.     audiodsp

  2150.     blockdsp

  2151.     bswapdsp

  2152.     cabac

  2153.     cbs

  2154.     cbs_h264

  2155.     cbs_h265

  2156.     cbs_mpeg2

  2157.     dirac_parse

  2158.     dvprofile

  2159.     exif

  2160.     faandct

  2161.     faanidct

  2162.     fdctdsp

  2163.     flacdsp

  2164.     fmtconvert

  2165.     frame_thread_encoder

  2166.     g722dsp

  2167.     golomb

  2168.     gplv3

  2169.     h263dsp

  2170.     h264chroma

  2171.     h264dsp

  2172.     h264parse

  2173.     h264pred

  2174.     h264qpel

  2175.     hevcparse

  2176.     hpeldsp

  2177.     huffman

  2178.     huffyuvdsp

  2179.     huffyuvencdsp

  2180.     idctdsp

  2181.     iirfilter

  2182.     mdct15

  2183.     intrax8

  2184.     iso_media

  2185.     ividsp

  2186.     jpegtables

  2187.     lgplv3

  2188.     libx262

  2189.     llauddsp

  2190.     llviddsp

  2191.     llvidencdsp

  2192.     lpc

  2193.     lzf

  2194.     me_cmp

  2195.     mpeg_er

  2196.     mpegaudio

  2197.     mpegaudiodsp

  2198.     mpegaudioheader

  2199.     mpegvideo

  2200.     mpegvideoenc

  2201.     mss34dsp

  2202.     pixblockdsp

  2203.     qpeldsp

  2204.     qsv

  2205.     qsvdec

  2206.     qsvenc

  2207.     qsvvpp

  2208.     rangecoder

  2209.     riffdec

  2210.     riffenc

  2211.     rtpdec

  2212.     rtpenc_chain

  2213.     rv34dsp

  2214.     sinewin

  2215.     snappy

  2216.     srtp

  2217.     startcode

  2218.     texturedsp

  2219.     texturedspenc

  2220.     tpeldsp

  2221.     vaapi_1

  2222.     vaapi_encode

  2223.     vc1dsp

  2224.     videodsp

  2225.     vp3dsp

  2226.     vp56dsp

  2227.     vp8dsp

  2228.     wma_freqs

  2229.     wmv2dsp

  2230. "

  2231. 

  2232. CMDLINE_SELECT="

  2233.     $ARCH_EXT_LIST

  2234.     $CONFIG_LIST

  2235.     $HAVE_LIST_CMDLINE

  2236.     $THREADS_LIST

  2237.     asm

  2238.     cross_compile

  2239.     debug

  2240.     extra_warnings

  2241.     logging

  2242.     lto

  2243.     optimizations

  2244.     rpath

  2245.     stripping

  2246. "

  2247. 

  2248. PATHS_LIST="

  2249.     bindir

  2250.     datadir

  2251.     docdir

  2252.     incdir

  2253.     libdir

  2254.     mandir

  2255.     pkgconfigdir

  2256.     prefix

  2257.     shlibdir

  2258.     install_name_dir

  2259. "

  2260. 

  2261. CMDLINE_SET="

  2262.     $PATHS_LIST

  2263.     ar

  2264.     arch

  2265.     as

  2266.     assert_level

  2267.     build_suffix

  2268.     cc

  2269.     objcc

  2270.     cpu

  2271.     cross_prefix

  2272.     custom_allocator

  2273.     cxx

  2274.     dep_cc

  2275.     doxygen

  2276.     env

  2277.     extra_version

  2278.     gas

  2279.     host_cc

  2280.     host_cflags

  2281.     host_extralibs

  2282.     host_ld

  2283.     host_ldflags

  2284.     host_os

  2285.     ignore_tests

  2286.     install

  2287.     ld

  2288.     ln_s

  2289.     logfile

  2290.     malloc_prefix

  2291.     nm

  2292.     optflags

  2293.     nvccflags

  2294.     pkg_config

  2295.     pkg_config_flags

  2296.     progs_suffix

  2297.     random_seed

  2298.     ranlib

  2299.     samples

  2300.     strip

  2301.     sws_max_filter_size

  2302.     sysinclude

  2303.     sysroot

  2304.     target_exec

  2305.     target_os

  2306.     target_path

  2307.     target_samples

  2308.     tempprefix

  2309.     toolchain

  2310.     valgrind

  2311.     x86asmexe

  2312. "

  2313. 

  2314. CMDLINE_APPEND="

  2315.     extra_cflags

  2316.     extra_cxxflags

  2317.     extra_objcflags

  2318.     host_cppflags

  2319. "

  2320. 

  2321. # code dependency declarations

  2322. 

  2323. # architecture extensions

  2324. 

  2325. armv5te_deps="arm"

  2326. armv6_deps="arm"

  2327. armv6t2_deps="arm"

  2328. armv8_deps="aarch64"

  2329. neon_deps_any="aarch64 arm"

  2330. intrinsics_neon_deps="neon"

  2331. vfp_deps_any="aarch64 arm"

  2332. vfpv3_deps="vfp"

  2333. setend_deps="arm"

  2334. 

  2335. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2336. 

  2337. altivec_deps="ppc"

  2338. dcbzl_deps="ppc"

  2339. ldbrx_deps="ppc"

  2340. ppc4xx_deps="ppc"

  2341. vsx_deps="altivec"

  2342. power8_deps="vsx"

  2343. 

  2344. loongson2_deps="mips"

  2345. loongson3_deps="mips"

  2346. mips32r2_deps="mips"

  2347. mips32r5_deps="mips"

  2348. mips32r6_deps="mips"

  2349. mips64r2_deps="mips"

  2350. mips64r6_deps="mips"

  2351. mipsfpu_deps="mips"

  2352. mipsdsp_deps="mips"

  2353. mipsdspr2_deps="mips"

  2354. mmi_deps="mips"

  2355. msa_deps="mipsfpu"

  2356. 

  2357. cpunop_deps="i686"

  2358. x86_64_select="i686"

  2359. x86_64_suggest="fast_cmov"

  2360. 

  2361. amd3dnow_deps="mmx"

  2362. amd3dnowext_deps="amd3dnow"

  2363. i686_deps="x86"

  2364. mmx_deps="x86"

  2365. mmxext_deps="mmx"

  2366. sse_deps="mmxext"

  2367. sse2_deps="sse"

  2368. sse3_deps="sse2"

  2369. ssse3_deps="sse3"

  2370. sse4_deps="ssse3"

  2371. sse42_deps="sse4"

  2372. aesni_deps="sse42"

  2373. avx_deps="sse42"

  2374. xop_deps="avx"

  2375. fma3_deps="avx"

  2376. fma4_deps="avx"

  2377. avx2_deps="avx"

  2378. avx512_deps="avx2"

  2379. 

  2380. mmx_external_deps="x86asm"

  2381. mmx_inline_deps="inline_asm x86"

  2382. mmx_suggest="mmx_external mmx_inline"

  2383. 

  2384. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2385.     eval dep=\$${ext}_deps

  2386.     eval ${ext}_external_deps='"${dep}_external"'

  2387.     eval ${ext}_inline_deps='"${dep}_inline"'

  2388.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2389. done

  2390. 

  2391. aligned_stack_if_any="aarch64 ppc x86"

  2392. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2393. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2394. fast_unaligned_if_any="aarch64 ppc x86"

  2395. simd_align_16_if_any="altivec neon sse"

  2396. simd_align_32_if_any="avx"

  2397. simd_align_64_if_any="avx512"

  2398. 

  2399. # system capabilities

  2400. symver_if_any="symver_asm_label symver_gnu_asm"

  2401. valgrind_backtrace_conflict="optimizations"

  2402. valgrind_backtrace_deps="valgrind_valgrind_h"

  2403. 

  2404. # threading support

  2405. atomics_gcc_if="sync_val_compare_and_swap"

  2406. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2407. atomics_win32_if="MemoryBarrier"

  2408. atomics_native_if_any="$ATOMICS_LIST"

  2409. w32threads_deps="atomics_native"

  2410. threads_if_any="$THREADS_LIST"

  2411. 

  2412. # subsystems

  2413. cbs_h264_select="cbs golomb"

  2414. cbs_h265_select="cbs golomb"

  2415. cbs_mpeg2_select="cbs"

  2416. dct_select="rdft"

  2417. dirac_parse_select="golomb"

  2418. error_resilience_select="me_cmp"

  2419. faandct_deps="faan"

  2420. faandct_select="fdctdsp"

  2421. faanidct_deps="faan"

  2422. faanidct_select="idctdsp"

  2423. h264dsp_select="startcode"

  2424. hevcparse_select="golomb"

  2425. frame_thread_encoder_deps="encoders threads"

  2426. intrax8_select="blockdsp idctdsp"

  2427. mdct_select="fft"

  2428. mdct15_select="fft"

  2429. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2430. mpeg_er_select="error_resilience"

  2431. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2432. mpegaudiodsp_select="dct"

  2433. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2434. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2435. vc1dsp_select="h264chroma qpeldsp startcode"

  2436. rdft_select="fft"

  2437. 

  2438. # decoders / encoders

  2439. aac_decoder_select="adts_header mdct15 mdct sinewin"

  2440. aac_fixed_decoder_select="mdct sinewin"

  2441. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2442. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2443. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2444. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2445. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2446. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2447. adpcm_g722_decoder_select="g722dsp"

  2448. adpcm_g722_encoder_select="g722dsp"

  2449. aic_decoder_select="golomb idctdsp"

  2450. alac_encoder_select="lpc"

  2451. als_decoder_select="bswapdsp"

  2452. amrnb_decoder_select="lsp"

  2453. amrwb_decoder_select="lsp"

  2454. amv_decoder_select="sp5x_decoder exif"

  2455. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2456. ape_decoder_select="bswapdsp llauddsp"

  2457. apng_decoder_deps="zlib"

  2458. apng_encoder_deps="zlib"

  2459. apng_encoder_select="llvidencdsp"

  2460. aptx_decoder_select="audio_frame_queue"

  2461. aptx_encoder_select="audio_frame_queue"

  2462. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2463. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2464. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2465. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2466. atrac1_decoder_select="mdct sinewin"

  2467. atrac3_decoder_select="mdct"

  2468. atrac3p_decoder_select="mdct sinewin"

  2469. avrn_decoder_select="exif jpegtables"

  2470. bink_decoder_select="blockdsp hpeldsp"

  2471. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2472. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2473. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2474. clearvideo_decoder_select="idctdsp"

  2475. cllc_decoder_select="bswapdsp"

  2476. comfortnoise_encoder_select="lpc"

  2477. cook_decoder_select="audiodsp mdct sinewin"

  2478. cscd_decoder_select="lzo"

  2479. cscd_decoder_suggest="zlib"

  2480. dca_decoder_select="mdct"

  2481. dds_decoder_select="texturedsp"

  2482. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2483. dnxhd_decoder_select="blockdsp idctdsp"

  2484. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2485. dolby_e_decoder_select="mdct"

  2486. dvvideo_decoder_select="dvprofile idctdsp"

  2487. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2488. dxa_decoder_deps="zlib"

  2489. dxv_decoder_select="lzf texturedsp"

  2490. eac3_decoder_select="ac3_decoder"

  2491. eac3_encoder_select="ac3_encoder"

  2492. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2493. eatgq_decoder_select="aandcttables"

  2494. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2495. exr_decoder_deps="zlib"

  2496. ffv1_decoder_select="rangecoder"

  2497. ffv1_encoder_select="rangecoder"

  2498. ffvhuff_decoder_select="huffyuv_decoder"

  2499. ffvhuff_encoder_select="huffyuv_encoder"

  2500. fic_decoder_select="golomb"

  2501. flac_decoder_select="flacdsp"

  2502. flac_encoder_select="bswapdsp flacdsp lpc"

  2503. flashsv2_decoder_deps="zlib"

  2504. flashsv2_encoder_deps="zlib"

  2505. flashsv_decoder_deps="zlib"

  2506. flashsv_encoder_deps="zlib"

  2507. flv_decoder_select="h263_decoder"

  2508. flv_encoder_select="h263_encoder"

  2509. fourxm_decoder_select="blockdsp bswapdsp"

  2510. fraps_decoder_select="bswapdsp huffman"

  2511. g2m_decoder_deps="zlib"

  2512. g2m_decoder_select="blockdsp idctdsp jpegtables"

  2513. g729_decoder_select="audiodsp"

  2514. h261_decoder_select="mpegvideo"

  2515. h261_encoder_select="aandcttables mpegvideoenc"

  2516. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2517. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2518. h263i_decoder_select="h263_decoder"

  2519. h263p_decoder_select="h263_decoder"

  2520. h263p_encoder_select="h263_encoder"

  2521. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2522. h264_decoder_suggest="error_resilience"

  2523. hap_decoder_select="snappy texturedsp"

  2524. hap_encoder_deps="libsnappy"

  2525. hap_encoder_select="texturedspenc"

  2526. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2527. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2528. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2529. iac_decoder_select="imc_decoder"

  2530. imc_decoder_select="bswapdsp fft mdct sinewin"

  2531. indeo3_decoder_select="hpeldsp"

  2532. indeo4_decoder_select="ividsp"

  2533. indeo5_decoder_select="ividsp"

  2534. interplay_video_decoder_select="hpeldsp"

  2535. jpegls_decoder_select="mjpeg_decoder"

  2536. jv_decoder_select="blockdsp"

  2537. lagarith_decoder_select="llviddsp"

  2538. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2539. magicyuv_decoder_select="llviddsp"

  2540. magicyuv_encoder_select="llvidencdsp"

  2541. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2542. metasound_decoder_select="lsp mdct sinewin"

  2543. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2544. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2545. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2546. mjpegb_decoder_select="mjpeg_decoder"

  2547. mlp_decoder_select="mlp_parser"

  2548. mlp_encoder_select="lpc"

  2549. motionpixels_decoder_select="bswapdsp"

  2550. mp1_decoder_select="mpegaudio"

  2551. mp1float_decoder_select="mpegaudio"

  2552. mp2_decoder_select="mpegaudio"

  2553. mp2float_decoder_select="mpegaudio"

  2554. mp3_decoder_select="mpegaudio"

  2555. mp3adu_decoder_select="mpegaudio"

  2556. mp3adufloat_decoder_select="mpegaudio"

  2557. mp3float_decoder_select="mpegaudio"

  2558. mp3on4_decoder_select="mpegaudio"

  2559. mp3on4float_decoder_select="mpegaudio"

  2560. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2561. mpc8_decoder_select="mpegaudiodsp"

  2562. mpegvideo_decoder_select="mpegvideo"

  2563. mpeg1video_decoder_select="mpegvideo"

  2564. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2565. mpeg2video_decoder_select="mpegvideo"

  2566. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2567. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2568. mpeg4_encoder_select="h263_encoder"

  2569. msa1_decoder_select="mss34dsp"

  2570. mscc_decoder_deps="zlib"

  2571. msmpeg4v1_decoder_select="h263_decoder"

  2572. msmpeg4v2_decoder_select="h263_decoder"

  2573. msmpeg4v2_encoder_select="h263_encoder"

  2574. msmpeg4v3_decoder_select="h263_decoder"

  2575. msmpeg4v3_encoder_select="h263_encoder"

  2576. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2577. mts2_decoder_select="mss34dsp"

  2578. mxpeg_decoder_select="mjpeg_decoder"

  2579. nellymoser_decoder_select="mdct sinewin"

  2580. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2581. nuv_decoder_select="idctdsp lzo"

  2582. on2avc_decoder_select="mdct"

  2583. opus_decoder_deps="swresample"

  2584. opus_decoder_select="mdct15"

  2585. opus_encoder_select="audio_frame_queue mdct15"

  2586. png_decoder_deps="zlib"

  2587. png_encoder_deps="zlib"

  2588. png_encoder_select="llvidencdsp"

  2589. prores_decoder_select="blockdsp idctdsp"

  2590. prores_encoder_select="fdctdsp"

  2591. qcelp_decoder_select="lsp"

  2592. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2593. ra_144_decoder_select="audiodsp"

  2594. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2595. ralf_decoder_select="golomb"

  2596. rawvideo_decoder_select="bswapdsp"

  2597. rscc_decoder_deps="zlib"

  2598. rtjpeg_decoder_select="me_cmp"

  2599. rv10_decoder_select="h263_decoder"

  2600. rv10_encoder_select="h263_encoder"

  2601. rv20_decoder_select="h263_decoder"

  2602. rv20_encoder_select="h263_encoder"

  2603. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2604. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2605. screenpresso_decoder_deps="zlib"

  2606. shorten_decoder_select="bswapdsp"

  2607. sipr_decoder_select="lsp"

  2608. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2609. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2610. sonic_decoder_select="golomb rangecoder"

  2611. sonic_encoder_select="golomb rangecoder"

  2612. sonic_ls_encoder_select="golomb rangecoder"

  2613. sp5x_decoder_select="mjpeg_decoder"

  2614. srgc_decoder_deps="zlib"

  2615. svq1_decoder_select="hpeldsp"

  2616. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2617. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2618. svq3_decoder_suggest="zlib"

  2619. tak_decoder_select="audiodsp"

  2620. tdsc_decoder_deps="zlib"

  2621. tdsc_decoder_select="mjpeg_decoder"

  2622. theora_decoder_select="vp3_decoder"

  2623. thp_decoder_select="mjpeg_decoder"

  2624. tiff_decoder_suggest="zlib lzma"

  2625. tiff_encoder_suggest="zlib"

  2626. truehd_decoder_select="mlp_parser"

  2627. truehd_encoder_select="lpc"

  2628. truemotion2_decoder_select="bswapdsp"

  2629. truespeech_decoder_select="bswapdsp"

  2630. tscc_decoder_deps="zlib"

  2631. twinvq_decoder_select="mdct lsp sinewin"

  2632. txd_decoder_select="texturedsp"

  2633. utvideo_decoder_select="bswapdsp llviddsp"

  2634. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2635. vble_decoder_select="llviddsp"

  2636. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2637. vc1image_decoder_select="vc1_decoder"

  2638. vorbis_decoder_select="mdct"

  2639. vorbis_encoder_select="mdct"

  2640. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2641. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2642. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2643. vp6a_decoder_select="vp6_decoder"

  2644. vp6f_decoder_select="vp6_decoder"

  2645. vp7_decoder_select="h264pred videodsp vp8dsp"

  2646. vp8_decoder_select="h264pred videodsp vp8dsp"

  2647. vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"

  2648. webp_decoder_select="vp8_decoder exif"

  2649. wmalossless_decoder_select="llauddsp"

  2650. wmapro_decoder_select="mdct sinewin wma_freqs"

  2651. wmav1_decoder_select="mdct sinewin wma_freqs"

  2652. wmav1_encoder_select="mdct sinewin wma_freqs"

  2653. wmav2_decoder_select="mdct sinewin wma_freqs"

  2654. wmav2_encoder_select="mdct sinewin wma_freqs"

  2655. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2656. wmv1_decoder_select="h263_decoder"

  2657. wmv1_encoder_select="h263_encoder"

  2658. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2659. wmv2_encoder_select="h263_encoder wmv2dsp"

  2660. wmv3_decoder_select="vc1_decoder"

  2661. wmv3image_decoder_select="wmv3_decoder"

  2662. xma1_decoder_select="wmapro_decoder"

  2663. xma2_decoder_select="wmapro_decoder"

  2664. zerocodec_decoder_deps="zlib"

  2665. zlib_decoder_deps="zlib"

  2666. zlib_encoder_deps="zlib"

  2667. zmbv_decoder_deps="zlib"

  2668. zmbv_encoder_deps="zlib"

  2669. 

  2670. # hardware accelerators

  2671. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2672. cuda_deps_any="libdl LoadLibrary"

  2673. cuvid_deps="cuda"

  2674. d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2675. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"

  2676. nvdec_deps="cuda"

  2677. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2678. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2679. xvmc_deps="X11_extensions_XvMClib_h"

  2680. 

  2681. h263_vaapi_hwaccel_deps="vaapi"

  2682. h263_vaapi_hwaccel_select="h263_decoder"

  2683. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2684. h263_videotoolbox_hwaccel_select="h263_decoder"

  2685. h264_d3d11va_hwaccel_deps="d3d11va"

  2686. h264_d3d11va_hwaccel_select="h264_decoder"

  2687. h264_d3d11va2_hwaccel_deps="d3d11va"

  2688. h264_d3d11va2_hwaccel_select="h264_decoder"

  2689. h264_dxva2_hwaccel_deps="dxva2"

  2690. h264_dxva2_hwaccel_select="h264_decoder"

  2691. h264_nvdec_hwaccel_deps="nvdec"

  2692. h264_nvdec_hwaccel_select="h264_decoder"

  2693. h264_vaapi_hwaccel_deps="vaapi"

  2694. h264_vaapi_hwaccel_select="h264_decoder"

  2695. h264_vdpau_hwaccel_deps="vdpau"

  2696. h264_vdpau_hwaccel_select="h264_decoder"

  2697. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2698. h264_videotoolbox_hwaccel_select="h264_decoder"

  2699. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2700. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2701. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2702. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2703. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2704. hevc_dxva2_hwaccel_select="hevc_decoder"

  2705. hevc_nvdec_hwaccel_deps="nvdec"

  2706. hevc_nvdec_hwaccel_select="hevc_decoder"

  2707. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2708. hevc_vaapi_hwaccel_select="hevc_decoder"

  2709. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2710. hevc_vdpau_hwaccel_select="hevc_decoder"

  2711. hevc_videotoolbox_hwaccel_deps="videotoolbox"

  2712. hevc_videotoolbox_hwaccel_select="hevc_decoder"

  2713. mpeg_xvmc_hwaccel_deps="xvmc"

  2714. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2715. mpeg1_nvdec_hwaccel_deps="nvdec"

  2716. mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"

  2717. mpeg1_vdpau_hwaccel_deps="vdpau"

  2718. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2719. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2720. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2721. mpeg1_xvmc_hwaccel_deps="xvmc"

  2722. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2723. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2724. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2725. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2726. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2727. mpeg2_dxva2_hwaccel_deps="dxva2"

  2728. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2729. mpeg2_nvdec_hwaccel_deps="nvdec"

  2730. mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"

  2731. mpeg2_vaapi_hwaccel_deps="vaapi"

  2732. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2733. mpeg2_vdpau_hwaccel_deps="vdpau"

  2734. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2735. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2736. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2737. mpeg2_xvmc_hwaccel_deps="xvmc"

  2738. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2739. mpeg4_nvdec_hwaccel_deps="nvdec"

  2740. mpeg4_nvdec_hwaccel_select="mpeg4_decoder"

  2741. mpeg4_vaapi_hwaccel_deps="vaapi"

  2742. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2743. mpeg4_vdpau_hwaccel_deps="vdpau"

  2744. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2745. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2746. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2747. vc1_d3d11va_hwaccel_deps="d3d11va"

  2748. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2749. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2750. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2751. vc1_dxva2_hwaccel_deps="dxva2"

  2752. vc1_dxva2_hwaccel_select="vc1_decoder"

  2753. vc1_nvdec_hwaccel_deps="nvdec"

  2754. vc1_nvdec_hwaccel_select="vc1_decoder"

  2755. vc1_vaapi_hwaccel_deps="vaapi"

  2756. vc1_vaapi_hwaccel_select="vc1_decoder"

  2757. vc1_vdpau_hwaccel_deps="vdpau"

  2758. vc1_vdpau_hwaccel_select="vc1_decoder"

  2759. vp8_nvdec_hwaccel_deps="nvdec"

  2760. vp8_nvdec_hwaccel_select="vp8_decoder"

  2761. vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"

  2762. vp8_vaapi_hwaccel_select="vp8_decoder"

  2763. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2764. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2765. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2766. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2767. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2768. vp9_dxva2_hwaccel_select="vp9_decoder"

  2769. vp9_nvdec_hwaccel_deps="nvdec"

  2770. vp9_nvdec_hwaccel_select="vp9_decoder"

  2771. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2772. vp9_vaapi_hwaccel_select="vp9_decoder"

  2773. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2774. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2775. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2776. wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"

  2777. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2778. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2779. 

  2780. # hardware-accelerated codecs

  2781. omx_deps="libdl pthreads"

  2782. omx_rpi_select="omx"

  2783. qsv_deps="libmfx"

  2784. qsvdec_select="qsv"

  2785. qsvenc_select="qsv"

  2786. qsvvpp_select="qsv"

  2787. vaapi_encode_deps="vaapi"

  2788. v4l2_m2m_deps_any="linux_videodev2_h"

  2789. 

  2790. hwupload_cuda_filter_deps="cuda"

  2791. scale_npp_filter_deps="cuda libnpp"

  2792. scale_cuda_filter_deps="cuda_sdk"

  2793. thumbnail_cuda_filter_deps="cuda_sdk"

  2794. 

  2795. amf_deps_any="libdl LoadLibrary"

  2796. nvenc_deps="cuda"

  2797. nvenc_deps_any="libdl LoadLibrary"

  2798. nvenc_encoder_deps="nvenc"

  2799. 

  2800. h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"

  2801. h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"

  2802. h264_amf_encoder_deps="amf"

  2803. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2804. h264_cuvid_decoder_deps="cuvid"

  2805. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2806. h264_mediacodec_decoder_deps="mediacodec"

  2807. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2808. h264_mmal_decoder_deps="mmal"

  2809. h264_nvenc_encoder_deps="nvenc"

  2810. h264_omx_encoder_deps="omx"

  2811. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"

  2812. h264_qsv_encoder_select="qsvenc"

  2813. h264_rkmpp_decoder_deps="rkmpp"

  2814. h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"

  2815. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2816. h264_vaapi_encoder_select="cbs_h264 vaapi_encode"

  2817. h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"

  2818. h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"

  2819. hevc_amf_encoder_deps="amf"

  2820. hevc_cuvid_decoder_deps="cuvid"

  2821. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2822. hevc_mediacodec_decoder_deps="mediacodec"

  2823. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2824. hevc_nvenc_encoder_deps="nvenc"

  2825. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"

  2826. hevc_qsv_encoder_select="hevcparse qsvenc"

  2827. hevc_rkmpp_decoder_deps="rkmpp"

  2828. hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"

  2829. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2830. hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"

  2831. hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2832. hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"

  2833. mjpeg_cuvid_decoder_deps="cuvid"

  2834. mjpeg_qsv_encoder_deps="libmfx"

  2835. mjpeg_qsv_encoder_select="qsvenc"

  2836. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2837. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2838. mpeg1_cuvid_decoder_deps="cuvid"

  2839. mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"

  2840. mpeg2_crystalhd_decoder_select="crystalhd"

  2841. mpeg2_cuvid_decoder_deps="cuvid"

  2842. mpeg2_mmal_decoder_deps="mmal"

  2843. mpeg2_mediacodec_decoder_deps="mediacodec"

  2844. mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"

  2845. mpeg2_qsv_encoder_select="qsvenc"

  2846. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2847. mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"

  2848. mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"

  2849. mpeg4_crystalhd_decoder_select="crystalhd"

  2850. mpeg4_cuvid_decoder_deps="cuvid"

  2851. mpeg4_mediacodec_decoder_deps="mediacodec"

  2852. mpeg4_mmal_decoder_deps="mmal"

  2853. mpeg4_omx_encoder_deps="omx"

  2854. mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2855. mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"

  2856. msmpeg4_crystalhd_decoder_select="crystalhd"

  2857. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2858. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2859. vc1_crystalhd_decoder_select="crystalhd"

  2860. vc1_cuvid_decoder_deps="cuvid"

  2861. vc1_mmal_decoder_deps="mmal"

  2862. vc1_qsv_decoder_select="qsvdec vc1_parser"

  2863. vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"

  2864. vp8_cuvid_decoder_deps="cuvid"

  2865. vp8_mediacodec_decoder_deps="mediacodec"

  2866. vp8_qsv_decoder_select="qsvdec vp8_parser"

  2867. vp8_rkmpp_decoder_deps="rkmpp"

  2868. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2869. vp8_vaapi_encoder_select="vaapi_encode"

  2870. vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2871. vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"

  2872. vp9_cuvid_decoder_deps="cuvid"

  2873. vp9_mediacodec_decoder_deps="mediacodec"

  2874. vp9_rkmpp_decoder_deps="rkmpp"

  2875. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2876. vp9_vaapi_encoder_select="vaapi_encode"

  2877. vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"

  2878. wmv3_crystalhd_decoder_select="crystalhd"

  2879. 

  2880. # parsers

  2881. aac_parser_select="adts_header"

  2882. h264_parser_select="golomb h264dsp h264parse"

  2883. hevc_parser_select="hevcparse"

  2884. mpegaudio_parser_select="mpegaudioheader"

  2885. mpegvideo_parser_select="mpegvideo"

  2886. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2887. vc1_parser_select="vc1dsp"

  2888. 

  2889. # bitstream_filters

  2890. aac_adtstoasc_bsf_select="adts_header"

  2891. h264_metadata_bsf_select="cbs_h264"

  2892. h264_redundant_pps_bsf_select="cbs_h264"

  2893. hevc_metadata_bsf_select="cbs_h265"

  2894. mjpeg2jpeg_bsf_select="jpegtables"

  2895. mpeg2_metadata_bsf_select="cbs_mpeg2"

  2896. trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"

  2897. 

  2898. # external libraries

  2899. aac_at_decoder_deps="audiotoolbox"

  2900. aac_at_decoder_select="aac_adtstoasc_bsf"

  2901. ac3_at_decoder_deps="audiotoolbox"

  2902. ac3_at_decoder_select="ac3_parser"

  2903. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2904. alac_at_decoder_deps="audiotoolbox"

  2905. amr_nb_at_decoder_deps="audiotoolbox"

  2906. avisynth_deps_any="libdl LoadLibrary"

  2907. avisynth_demuxer_deps="avisynth"

  2908. avisynth_demuxer_select="riffdec"

  2909. eac3_at_decoder_deps="audiotoolbox"

  2910. eac3_at_decoder_select="ac3_parser"

  2911. gsm_ms_at_decoder_deps="audiotoolbox"

  2912. ilbc_at_decoder_deps="audiotoolbox"

  2913. mp1_at_decoder_deps="audiotoolbox"

  2914. mp2_at_decoder_deps="audiotoolbox"

  2915. mp3_at_decoder_deps="audiotoolbox"

  2916. mp1_at_decoder_select="mpegaudioheader"

  2917. mp2_at_decoder_select="mpegaudioheader"

  2918. mp3_at_decoder_select="mpegaudioheader"

  2919. pcm_alaw_at_decoder_deps="audiotoolbox"

  2920. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2921. qdmc_at_decoder_deps="audiotoolbox"

  2922. qdm2_at_decoder_deps="audiotoolbox"

  2923. aac_at_encoder_deps="audiotoolbox"

  2924. aac_at_encoder_select="audio_frame_queue"

  2925. alac_at_encoder_deps="audiotoolbox"

  2926. alac_at_encoder_select="audio_frame_queue"

  2927. ilbc_at_encoder_deps="audiotoolbox"

  2928. ilbc_at_encoder_select="audio_frame_queue"

  2929. pcm_alaw_at_encoder_deps="audiotoolbox"

  2930. pcm_alaw_at_encoder_select="audio_frame_queue"

  2931. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2932. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2933. chromaprint_muxer_deps="chromaprint"

  2934. h264_videotoolbox_encoder_deps="pthreads"

  2935. h264_videotoolbox_encoder_select="videotoolbox_encoder"

  2936. hevc_videotoolbox_encoder_deps="pthreads"

  2937. hevc_videotoolbox_encoder_select="videotoolbox_encoder"

  2938. libcelt_decoder_deps="libcelt"

  2939. libfdk_aac_decoder_deps="libfdk_aac"

  2940. libfdk_aac_encoder_deps="libfdk_aac"

  2941. libfdk_aac_encoder_select="audio_frame_queue"

  2942. libgme_demuxer_deps="libgme"

  2943. libgsm_decoder_deps="libgsm"

  2944. libgsm_encoder_deps="libgsm"

  2945. libgsm_ms_decoder_deps="libgsm"

  2946. libgsm_ms_encoder_deps="libgsm"

  2947. libilbc_decoder_deps="libilbc"

  2948. libilbc_encoder_deps="libilbc"

  2949. libkvazaar_encoder_deps="libkvazaar"

  2950. libmodplug_demuxer_deps="libmodplug"

  2951. libmp3lame_encoder_deps="libmp3lame"

  2952. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2953. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2954. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2955. libopencore_amrnb_encoder_select="audio_frame_queue"

  2956. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2957. libopenh264_decoder_deps="libopenh264"

  2958. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2959. libopenh264_encoder_deps="libopenh264"

  2960. libopenjpeg_decoder_deps="libopenjpeg"

  2961. libopenjpeg_encoder_deps="libopenjpeg"

  2962. libopenmpt_demuxer_deps="libopenmpt"

  2963. libopus_decoder_deps="libopus"

  2964. libopus_encoder_deps="libopus"

  2965. libopus_encoder_select="audio_frame_queue"

  2966. librsvg_decoder_deps="librsvg"

  2967. libshine_encoder_deps="libshine"

  2968. libshine_encoder_select="audio_frame_queue"

  2969. libspeex_decoder_deps="libspeex"

  2970. libspeex_encoder_deps="libspeex"

  2971. libspeex_encoder_select="audio_frame_queue"

  2972. libtheora_encoder_deps="libtheora"

  2973. libtwolame_encoder_deps="libtwolame"

  2974. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2975. libvorbis_decoder_deps="libvorbis"

  2976. libvorbis_encoder_deps="libvorbis libvorbisenc"

  2977. libvorbis_encoder_select="audio_frame_queue"

  2978. libvpx_vp8_decoder_deps="libvpx"

  2979. libvpx_vp8_encoder_deps="libvpx"

  2980. libvpx_vp9_decoder_deps="libvpx"

  2981. libvpx_vp9_encoder_deps="libvpx"

  2982. libwavpack_encoder_deps="libwavpack"

  2983. libwavpack_encoder_select="audio_frame_queue"

  2984. libwebp_encoder_deps="libwebp"

  2985. libwebp_anim_encoder_deps="libwebp"

  2986. libx262_encoder_deps="libx262"

  2987. libx264_encoder_deps="libx264"

  2988. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2989. libx264rgb_encoder_select="libx264_encoder"

  2990. libx265_encoder_deps="libx265"

  2991. libxavs_encoder_deps="libxavs"

  2992. libxvid_encoder_deps="libxvid"

  2993. libzvbi_teletext_decoder_deps="libzvbi"

  2994. videotoolbox_suggest="coreservices"

  2995. videotoolbox_deps="corefoundation coremedia corevideo"

  2996. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2997. 

  2998. # demuxers / muxers

  2999. ac3_demuxer_select="ac3_parser"

  3000. aiff_muxer_select="iso_media"

  3001. asf_demuxer_select="riffdec"

  3002. asf_o_demuxer_select="riffdec"

  3003. asf_muxer_select="riffenc"

  3004. asf_stream_muxer_select="asf_muxer"

  3005. avi_demuxer_select="iso_media riffdec exif"

  3006. avi_muxer_select="riffenc"

  3007. caf_demuxer_select="iso_media riffdec"

  3008. caf_muxer_select="iso_media"

  3009. dash_muxer_select="mp4_muxer"

  3010. dash_demuxer_deps="libxml2"

  3011. dirac_demuxer_select="dirac_parser"

  3012. dts_demuxer_select="dca_parser"

  3013. dtshd_demuxer_select="dca_parser"

  3014. dv_demuxer_select="dvprofile"

  3015. dv_muxer_select="dvprofile"

  3016. dxa_demuxer_select="riffdec"

  3017. eac3_demuxer_select="ac3_parser"

  3018. f4v_muxer_select="mov_muxer"

  3019. fifo_muxer_deps="threads"

  3020. flac_demuxer_select="flac_parser"

  3021. hds_muxer_select="flv_muxer"

  3022. hls_muxer_select="mpegts_muxer"

  3023. hls_muxer_suggest="gcrypt openssl"

  3024. image2_alias_pix_demuxer_select="image2_demuxer"

  3025. image2_brender_pix_demuxer_select="image2_demuxer"

  3026. ipod_muxer_select="mov_muxer"

  3027. ismv_muxer_select="mov_muxer"

  3028. matroska_audio_muxer_select="matroska_muxer"

  3029. matroska_demuxer_select="iso_media riffdec"

  3030. matroska_demuxer_suggest="bzlib lzo zlib"

  3031. matroska_muxer_select="iso_media riffenc"

  3032. mmf_muxer_select="riffenc"

  3033. mov_demuxer_select="iso_media riffdec"

  3034. mov_demuxer_suggest="zlib"

  3035. mov_muxer_select="iso_media riffenc rtpenc_chain"

  3036. mp3_demuxer_select="mpegaudio_parser"

  3037. mp3_muxer_select="mpegaudioheader"

  3038. mp4_muxer_select="mov_muxer"

  3039. mpegts_demuxer_select="iso_media"

  3040. mpegts_muxer_select="adts_muxer latm_muxer"

  3041. mpegtsraw_demuxer_select="mpegts_demuxer"

  3042. mxf_d10_muxer_select="mxf_muxer"

  3043. mxf_opatom_muxer_select="mxf_muxer"

  3044. nut_muxer_select="riffenc"

  3045. nuv_demuxer_select="riffdec"

  3046. oga_muxer_select="ogg_muxer"

  3047. ogg_demuxer_select="dirac_parse"

  3048. ogv_muxer_select="ogg_muxer"

  3049. opus_muxer_select="ogg_muxer"

  3050. psp_muxer_select="mov_muxer"

  3051. rtp_demuxer_select="sdp_demuxer"

  3052. rtp_muxer_select="golomb"

  3053. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  3054. rtsp_demuxer_select="http_protocol rtpdec"

  3055. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  3056. sap_demuxer_select="sdp_demuxer"

  3057. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  3058. sdp_demuxer_select="rtpdec"

  3059. smoothstreaming_muxer_select="ismv_muxer"

  3060. spdif_demuxer_select="adts_header"

  3061. spdif_muxer_select="adts_header"

  3062. spx_muxer_select="ogg_muxer"

  3063. swf_demuxer_suggest="zlib"

  3064. tak_demuxer_select="tak_parser"

  3065. tg2_muxer_select="mov_muxer"

  3066. tgp_muxer_select="mov_muxer"

  3067. vobsub_demuxer_select="mpegps_demuxer"

  3068. w64_demuxer_select="wav_demuxer"

  3069. w64_muxer_select="wav_muxer"

  3070. wav_demuxer_select="riffdec"

  3071. wav_muxer_select="riffenc"

  3072. webm_muxer_select="iso_media riffenc"

  3073. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3074. wtv_demuxer_select="mpegts_demuxer riffdec"

  3075. wtv_muxer_select="mpegts_muxer riffenc"

  3076. xmv_demuxer_select="riffdec"

  3077. xwma_demuxer_select="riffdec"

  3078. 

  3079. # indevs / outdevs

  3080. alsa_indev_deps="alsa"

  3081. alsa_outdev_deps="alsa"

  3082. avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"

  3083. avfoundation_indev_suggest="coregraphics applicationservices"

  3084. avfoundation_indev_extralibs="-framework Foundation"

  3085. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3086. caca_outdev_deps="libcaca"

  3087. decklink_deps_any="libdl LoadLibrary"

  3088. decklink_indev_deps="decklink threads"

  3089. decklink_indev_extralibs="-lstdc++"

  3090. decklink_outdev_deps="decklink threads"

  3091. decklink_outdev_extralibs="-lstdc++"

  3092. libndi_newtek_indev_deps="libndi_newtek"

  3093. libndi_newtek_indev_extralibs="-lndi"

  3094. libndi_newtek_outdev_deps="libndi_newtek"

  3095. libndi_newtek_outdev_extralibs="-lndi"

  3096. dshow_indev_deps="IBaseFilter"

  3097. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3098. fbdev_indev_deps="linux_fb_h"

  3099. fbdev_outdev_deps="linux_fb_h"

  3100. gdigrab_indev_deps="CreateDIBSection"

  3101. gdigrab_indev_extralibs="-lgdi32"

  3102. gdigrab_indev_select="bmp_decoder"

  3103. iec61883_indev_deps="libiec61883"

  3104. jack_indev_deps="libjack"

  3105. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3106. kmsgrab_indev_deps="libdrm"

  3107. lavfi_indev_deps="avfilter"

  3108. libcdio_indev_deps="libcdio"

  3109. libdc1394_indev_deps="libdc1394"

  3110. openal_indev_deps="openal"

  3111. opengl_outdev_deps="opengl"

  3112. oss_indev_deps_any="sys_soundcard_h"

  3113. oss_outdev_deps_any="sys_soundcard_h"

  3114. pulse_indev_deps="libpulse"

  3115. pulse_outdev_deps="libpulse"

  3116. sdl2_outdev_deps="sdl2"

  3117. sndio_indev_deps="sndio"

  3118. sndio_outdev_deps="sndio"

  3119. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3120. v4l2_indev_suggest="libv4l2"

  3121. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3122. v4l2_outdev_suggest="libv4l2"

  3123. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3124. xcbgrab_indev_deps="libxcb"

  3125. xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"

  3126. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3127. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3128. 

  3129. # protocols

  3130. async_protocol_deps="threads"

  3131. bluray_protocol_deps="libbluray"

  3132. ffrtmpcrypt_protocol_conflict="librtmp_protocol"

  3133. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3134. ffrtmpcrypt_protocol_select="tcp_protocol"

  3135. ffrtmphttp_protocol_conflict="librtmp_protocol"

  3136. ffrtmphttp_protocol_select="http_protocol"

  3137. ftp_protocol_select="tcp_protocol"

  3138. gopher_protocol_select="network"

  3139. http_protocol_select="tcp_protocol"

  3140. http_protocol_suggest="zlib"

  3141. httpproxy_protocol_select="tcp_protocol"

  3142. httpproxy_protocol_suggest="zlib"

  3143. https_protocol_select="tls_protocol"

  3144. https_protocol_suggest="zlib"

  3145. icecast_protocol_select="http_protocol"

  3146. librtmp_protocol_deps="librtmp"

  3147. librtmpe_protocol_deps="librtmp"

  3148. librtmps_protocol_deps="librtmp"

  3149. librtmpt_protocol_deps="librtmp"

  3150. librtmpte_protocol_deps="librtmp"

  3151. libsmbclient_protocol_deps="libsmbclient gplv3"

  3152. libssh_protocol_deps="libssh"

  3153. libtls_conflict="openssl gnutls"

  3154. mmsh_protocol_select="http_protocol"

  3155. mmst_protocol_select="network"

  3156. rtmp_protocol_conflict="librtmp_protocol"

  3157. rtmp_protocol_select="tcp_protocol"

  3158. rtmp_protocol_suggest="zlib"

  3159. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3160. rtmpe_protocol_suggest="zlib"

  3161. rtmps_protocol_conflict="librtmp_protocol"

  3162. rtmps_protocol_select="tls_protocol"

  3163. rtmps_protocol_suggest="zlib"

  3164. rtmpt_protocol_select="ffrtmphttp_protocol"

  3165. rtmpt_protocol_suggest="zlib"

  3166. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3167. rtmpte_protocol_suggest="zlib"

  3168. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3169. rtmpts_protocol_suggest="zlib"

  3170. rtp_protocol_select="udp_protocol"

  3171. schannel_conflict="openssl gnutls libtls"

  3172. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3173. sctp_protocol_select="network"

  3174. securetransport_conflict="openssl gnutls libtls"

  3175. srtp_protocol_select="rtp_protocol srtp"

  3176. tcp_protocol_select="network"

  3177. tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"

  3178. tls_protocol_select="tcp_protocol"

  3179. udp_protocol_select="network"

  3180. udplite_protocol_select="network"

  3181. unix_protocol_deps="sys_un_h"

  3182. unix_protocol_select="network"

  3183. 

  3184. # filters

  3185. afftfilt_filter_deps="avcodec"

  3186. afftfilt_filter_select="fft"

  3187. afir_filter_deps="avcodec"

  3188. afir_filter_select="fft"

  3189. amovie_filter_deps="avcodec avformat"

  3190. aresample_filter_deps="swresample"

  3191. ass_filter_deps="libass"

  3192. atempo_filter_deps="avcodec"

  3193. atempo_filter_select="rdft"

  3194. azmq_filter_deps="libzmq"

  3195. blackframe_filter_deps="gpl"

  3196. boxblur_filter_deps="gpl"

  3197. bs2b_filter_deps="libbs2b"

  3198. colormatrix_filter_deps="gpl"

  3199. coreimage_filter_deps="coreimage appkit"

  3200. coreimage_filter_extralibs="-framework OpenGL"

  3201. coreimagesrc_filter_deps="coreimage appkit"

  3202. coreimagesrc_filter_extralibs="-framework OpenGL"

  3203. cover_rect_filter_deps="avcodec avformat gpl"

  3204. cropdetect_filter_deps="gpl"

  3205. deinterlace_qsv_filter_deps="libmfx"

  3206. deinterlace_vaapi_filter_deps="vaapi"

  3207. delogo_filter_deps="gpl"

  3208. deshake_filter_select="pixelutils"

  3209. drawtext_filter_deps="libfreetype"

  3210. drawtext_filter_suggest="libfontconfig libfribidi"

  3211. elbg_filter_deps="avcodec"

  3212. eq_filter_deps="gpl"

  3213. fftfilt_filter_deps="avcodec"

  3214. fftfilt_filter_select="rdft"

  3215. find_rect_filter_deps="avcodec avformat gpl"

  3216. firequalizer_filter_deps="avcodec"

  3217. firequalizer_filter_select="rdft"

  3218. flite_filter_deps="libflite"

  3219. framerate_filter_select="pixelutils"

  3220. frei0r_filter_deps="frei0r libdl"

  3221. frei0r_src_filter_deps="frei0r libdl"

  3222. fspp_filter_deps="gpl"

  3223. geq_filter_deps="gpl"

  3224. histeq_filter_deps="gpl"

  3225. hqdn3d_filter_deps="gpl"

  3226. interlace_filter_deps="gpl"

  3227. kerndeint_filter_deps="gpl"

  3228. ladspa_filter_deps="ladspa libdl"

  3229. lv2_filter_deps="lv2"

  3230. mcdeint_filter_deps="avcodec gpl"

  3231. movie_filter_deps="avcodec avformat"

  3232. mpdecimate_filter_deps="gpl"

  3233. mpdecimate_filter_select="pixelutils"

  3234. mptestsrc_filter_deps="gpl"

  3235. negate_filter_deps="lut_filter"

  3236. nnedi_filter_deps="gpl"

  3237. ocr_filter_deps="libtesseract"

  3238. ocv_filter_deps="libopencv"

  3239. overlay_opencl_filter_deps="opencl"

  3240. overlay_qsv_filter_deps="libmfx"

  3241. overlay_qsv_filter_select="qsvvpp"

  3242. owdenoise_filter_deps="gpl"

  3243. pan_filter_deps="swresample"

  3244. perspective_filter_deps="gpl"

  3245. phase_filter_deps="gpl"

  3246. pp7_filter_deps="gpl"

  3247. pp_filter_deps="gpl postproc"

  3248. pullup_filter_deps="gpl"

  3249. removelogo_filter_deps="avcodec avformat swscale"

  3250. repeatfields_filter_deps="gpl"

  3251. resample_filter_deps="avresample"

  3252. rubberband_filter_deps="librubberband"

  3253. sab_filter_deps="gpl swscale"

  3254. scale2ref_filter_deps="swscale"

  3255. scale_filter_deps="swscale"

  3256. scale_qsv_filter_deps="libmfx"

  3257. select_filter_select="pixelutils"

  3258. showcqt_filter_deps="avcodec avformat swscale"

  3259. showcqt_filter_suggest="libfontconfig libfreetype"

  3260. showcqt_filter_select="fft"

  3261. showfreqs_filter_deps="avcodec"

  3262. showfreqs_filter_select="fft"

  3263. showspectrum_filter_deps="avcodec"

  3264. showspectrum_filter_select="fft"

  3265. showspectrumpic_filter_deps="avcodec"

  3266. showspectrumpic_filter_select="fft"

  3267. signature_filter_deps="gpl avcodec avformat"

  3268. smartblur_filter_deps="gpl swscale"

  3269. sofalizer_filter_deps="libmysofa avcodec"

  3270. sofalizer_filter_select="fft"

  3271. spectrumsynth_filter_deps="avcodec"

  3272. spectrumsynth_filter_select="fft"

  3273. spp_filter_deps="gpl avcodec"

  3274. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3275. stereo3d_filter_deps="gpl"

  3276. subtitles_filter_deps="avformat avcodec libass"

  3277. super2xsai_filter_deps="gpl"

  3278. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3279. tinterlace_filter_deps="gpl"

  3280. tinterlace_merge_test_deps="tinterlace_filter"

  3281. tinterlace_pad_test_deps="tinterlace_filter"

  3282. tonemap_filter_deps="const_nan"

  3283. unsharp_opencl_filter_deps="opencl"

  3284. uspp_filter_deps="gpl avcodec"

  3285. vaguedenoiser_filter_deps="gpl"

  3286. vidstabdetect_filter_deps="libvidstab"

  3287. vidstabtransform_filter_deps="libvidstab"

  3288. libvmaf_filter_deps="libvmaf"

  3289. zmq_filter_deps="libzmq"

  3290. zoompan_filter_deps="swscale"

  3291. zscale_filter_deps="libzimg const_nan"

  3292. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3293. vpp_qsv_filter_deps="libmfx"

  3294. vpp_qsv_filter_select="qsvvpp"

  3295. 

  3296. # examples

  3297. avio_dir_cmd_deps="avformat avutil"

  3298. avio_reading_deps="avformat avcodec avutil"

  3299. decode_audio_example_deps="avcodec avutil"

  3300. decode_video_example_deps="avcodec avutil"

  3301. demuxing_decoding_example_deps="avcodec avformat avutil"

  3302. encode_audio_example_deps="avcodec avutil"

  3303. encode_video_example_deps="avcodec avutil"

  3304. extract_mvs_example_deps="avcodec avformat avutil"

  3305. filter_audio_example_deps="avfilter avutil"

  3306. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3307. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3308. http_multiclient_example_deps="avformat avutil fork"

  3309. hw_decode_example_deps="avcodec avformat avutil"

  3310. metadata_example_deps="avformat avutil"

  3311. muxing_example_deps="avcodec avformat avutil swscale"

  3312. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3313. remuxing_example_deps="avcodec avformat avutil"

  3314. resampling_audio_example_deps="avutil swresample"

  3315. scaling_video_example_deps="avutil swscale"

  3316. transcode_aac_example_deps="avcodec avformat swresample"

  3317. transcoding_example_deps="avfilter avcodec avformat avutil"

  3318. vaapi_encode_example_deps="avcodec avutil"

  3319. 

  3320. # EXTRALIBS_LIST

  3321. cpu_init_extralibs="pthreads_extralibs"

  3322. cws2fws_extralibs="zlib_extralibs"

  3323. 

  3324. # libraries, in linking order

  3325. avcodec_deps="avutil"

  3326. avcodec_suggest="libm"

  3327. avcodec_select="null_bsf"

  3328. avdevice_deps="avformat avcodec avutil"

  3329. avdevice_suggest="libm"

  3330. avfilter_deps="avutil"

  3331. avfilter_suggest="libm"

  3332. avformat_deps="avcodec avutil"

  3333. avformat_suggest="libm network zlib"

  3334. avresample_deps="avutil"

  3335. avresample_suggest="libm"

  3336. avutil_suggest="clock_gettime cuda libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"

  3337. postproc_deps="avutil gpl"

  3338. postproc_suggest="libm"

  3339. swresample_deps="avutil"

  3340. swresample_suggest="libm libsoxr"

  3341. swscale_deps="avutil"

  3342. swscale_suggest="libm"

  3343. 

  3344. avcodec_extralibs="pthreads_extralibs iconv_extralibs"

  3345. avfilter_extralibs="pthreads_extralibs"

  3346. avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"

  3347. 

  3348. # programs

  3349. ffmpeg_deps="avcodec avfilter avformat swresample"

  3350. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3351.                null_filter

  3352.                trim_filter"

  3353. ffmpeg_suggest="ole32 psapi shell32"

  3354. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3355. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3356. ffplay_suggest="shell32"

  3357. ffprobe_deps="avcodec avformat"

  3358. ffprobe_suggest="shell32"

  3359. ffserver_deps="avformat fork sarestart"

  3360. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3361. 

  3362. # documentation

  3363. podpages_deps="perl"

  3364. manpages_deps="perl pod2man"

  3365. htmlpages_deps="perl"

  3366. htmlpages_deps_any="makeinfo_html texi2html"

  3367. txtpages_deps="perl makeinfo"

  3368. doc_deps_any="manpages htmlpages podpages txtpages"

  3369. 

  3370. # default parameters

  3371. 

  3372. logfile="ffbuild/config.log"

  3373. 

  3374. # installation paths

  3375. prefix_default="/usr/local"

  3376. bindir_default='${prefix}/bin'

  3377. datadir_default='${prefix}/share/ffmpeg'

  3378. docdir_default='${prefix}/share/doc/ffmpeg'

  3379. incdir_default='${prefix}/include'

  3380. libdir_default='${prefix}/lib'

  3381. mandir_default='${prefix}/share/man'

  3382. 

  3383. # toolchain

  3384. ar_default="ar"

  3385. cc_default="gcc"

  3386. cxx_default="g++"

  3387. host_cc_default="gcc"

  3388. doxygen_default="doxygen"

  3389. install="install"

  3390. ln_s_default="ln -s -f"

  3391. nm_default="nm -g"

  3392. pkg_config_default=pkg-config

  3393. ranlib_default="ranlib"

  3394. strip_default="strip"

  3395. version_script='--version-script'

  3396. objformat="elf32"

  3397. x86asmexe_default="nasm"

  3398. windres_default="windres"

  3399. nvcc_default="nvcc"

  3400. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3401. striptype="direct"

  3402. 

  3403. # OS

  3404. target_os_default=$(tolower $(uname -s))

  3405. host_os=$target_os_default

  3406. 

  3407. # machine

  3408. if test "$target_os_default" = aix; then

  3409.     arch_default=$(uname -p)

  3410.     strip_default="strip -X32_64"

  3411. else

  3412.     arch_default=$(uname -m)

  3413. fi

  3414. cpu="generic"

  3415. intrinsics="none"

  3416. 

  3417. # configurable options

  3418. enable $PROGRAM_LIST

  3419. enable $DOCUMENT_LIST

  3420. enable $EXAMPLE_LIST

  3421. enable $(filter_out avresample $LIBRARY_LIST)

  3422. enable stripping

  3423. 

  3424. enable asm

  3425. enable debug

  3426. enable doc

  3427. enable faan faandct faanidct

  3428. enable optimizations

  3429. enable runtime_cpudetect

  3430. enable safe_bitstream_reader

  3431. enable static

  3432. enable swscale_alpha

  3433. enable valgrind_backtrace

  3434. 

  3435. sws_max_filter_size_default=256

  3436. set_default sws_max_filter_size

  3437. 

  3438. # internal components are enabled by default

  3439. enable $EXTRALIBS_LIST

  3440. 

  3441. # Avoid external, non-system, libraries getting enabled by dependency resolution

  3442. disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST

  3443. 

  3444. # build settings

  3445. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3446. LIBPREF="lib"

  3447. LIBSUF=".a"

  3448. FULLNAME='$(NAME)$(BUILDSUF)'

  3449. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3450. SLIBPREF="lib"

  3451. SLIBSUF=".so"

  3452. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3453. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3454. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3455. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3456. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

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

  3458. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3459. 

  3460. asflags_filter=echo

  3461. cflags_filter=echo

  3462. ldflags_filter=echo

  3463. 

  3464. AS_C='-c'

  3465. AS_O='-o $@'

  3466. CC_C='-c'

  3467. CC_E='-E -o $@'

  3468. CC_O='-o $@'

  3469. CXX_C='-c'

  3470. CXX_O='-o $@'

  3471. OBJCC_C='-c'

  3472. OBJCC_E='-E -o $@'

  3473. OBJCC_O='-o $@'

  3474. X86ASM_O='-o $@'

  3475. LD_O='-o $@'

  3476. LD_LIB='-l%'

  3477. LD_PATH='-L'

  3478. HOSTCC_C='-c'

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

  3480. HOSTCC_O='-o $@'

  3481. HOSTLD_O='-o $@'

  3482. NVCC_C='-c'

  3483. NVCC_O='-o $@'

  3484. 

  3485. host_extralibs='-lm'

  3486. host_cflags_filter=echo

  3487. host_ldflags_filter=echo

  3488. 

  3489. target_path='$(CURDIR)'

  3490. 

  3491. # since the object filename is not given with the -MM flag, the compiler

  3492. # is only able to print the basename, and we must add the path ourselves

  3493. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3494. DEPFLAGS='-MM'

  3495. 

  3496. mkdir -p ffbuild

  3497. 

  3498. # find source path

  3499. if test -f configure; then

  3500.     source_path=.

  3501. else

  3502.     source_path=$(cd $(dirname "$0"); pwd)

  3503.     case "$source_path" in

  3504.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3505.     esac

  3506.     test -e "$source_path/config.h" &&

  3507.         die "Out of tree builds are impossible with config.h in source dir."

  3508. fi

  3509. 

  3510. for v in "$@"; do

  3511.     r=${v#*=}

  3512.     l=${v%"$r"}

  3513.     r=$(sh_quote "$r")

  3514.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3515. done

  3516. 

  3517. find_things(){

  3518.     thing=$1

  3519.     pattern=$2

  3520.     file=$source_path/$3

  3521.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3522. }

  3523. 

  3524. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3525. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3526. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3527. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3528. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3529. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3530. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3531. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3532. 

  3533. find_things_extern(){

  3534.     thing=$1

  3535.     pattern=$2

  3536.     file=$source_path/$3

  3537.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3538. }

  3539. 

  3540. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3541. HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)

  3542. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3543. 

  3544. AVCODEC_COMPONENTS_LIST="

  3545.     $BSF_LIST

  3546.     $DECODER_LIST

  3547.     $ENCODER_LIST

  3548.     $HWACCEL_LIST

  3549.     $PARSER_LIST

  3550. "

  3551. 

  3552. AVDEVICE_COMPONENTS_LIST="

  3553.     $INDEV_LIST

  3554.     $OUTDEV_LIST

  3555. "

  3556. 

  3557. AVFILTER_COMPONENTS_LIST="

  3558.     $FILTER_LIST

  3559. "

  3560. 

  3561. AVFORMAT_COMPONENTS_LIST="

  3562.     $DEMUXER_LIST

  3563.     $MUXER_LIST

  3564.     $PROTOCOL_LIST

  3565. "

  3566. 

  3567. ALL_COMPONENTS="

  3568.     $AVCODEC_COMPONENTS_LIST

  3569.     $AVDEVICE_COMPONENTS_LIST

  3570.     $AVFILTER_COMPONENTS_LIST

  3571.     $AVFORMAT_COMPONENTS_LIST

  3572. "

  3573. 

  3574. for n in $COMPONENT_LIST; do

  3575.     v=$(toupper ${n%s})_LIST

  3576.     eval enable \$$v

  3577.     eval ${n}_if_any="\$$v"

  3578. done

  3579. 

  3580. enable $ARCH_EXT_LIST

  3581. 

  3582. die_unknown(){

  3583.     echo "Unknown option \"$1\"."

  3584.     echo "See $0 --help for available options."

  3585.     exit 1

  3586. }

  3587. 

  3588. print_in_columns() {

  3589.     cols=$(expr $ncols / 24)

  3590.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3591. }

  3592. 

  3593. show_list() {

  3594.     suffix=_$1

  3595.     shift

  3596.     echo $* | sed s/$suffix//g | print_in_columns

  3597.     exit 0

  3598. }

  3599. 

  3600. rand_list(){

  3601.     IFS=', '

  3602.     set -- $*

  3603.     unset IFS

  3604.     for thing; do

  3605.         comp=${thing%:*}

  3606.         prob=${thing#$comp}

  3607.         prob=${prob#:}

  3608.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3609.         echo "prob ${prob:-0.5}"

  3610.         printf '%s\n' $comp

  3611.     done

  3612. }

  3613. 

  3614. do_random(){

  3615.     action=$1

  3616.     shift

  3617.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3618.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3619. }

  3620. 

  3621. for opt do

  3622.     optval="${opt#*=}"

  3623.     case "$opt" in

  3624.         --extra-ldflags=*)

  3625.             add_ldflags $optval

  3626.         ;;

  3627.         --extra-ldexeflags=*)

  3628.             add_ldexeflags $optval

  3629.         ;;

  3630.         --extra-ldsoflags=*)

  3631.             add_ldsoflags $optval

  3632.         ;;

  3633.         --extra-ldlibflags=*)

  3634.             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\

  3635.                  "removed in the future. Use --extra-ldsoflags instead."

  3636.             add_ldsoflags $optval

  3637.         ;;

  3638.         --extra-libs=*)

  3639.             add_extralibs $optval

  3640.         ;;

  3641.         --disable-devices)

  3642.             disable $INDEV_LIST $OUTDEV_LIST

  3643.         ;;

  3644.         --enable-debug=*)

  3645.             debuglevel="$optval"

  3646.         ;;

  3647.         --disable-programs)

  3648.             disable $PROGRAM_LIST

  3649.         ;;

  3650.         --disable-everything)

  3651.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3652.         ;;

  3653.         --disable-all)

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

  3655.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3656.             enable avutil

  3657.         ;;

  3658.         --enable-random|--disable-random)

  3659.             action=${opt%%-random}

  3660.             do_random ${action#--} $COMPONENT_LIST

  3661.         ;;

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

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

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

  3665.         ;;

  3666.         --enable-sdl)

  3667.             enable sdl2

  3668.         ;;

  3669.         --enable-*=*|--disable-*=*)

  3670.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3671.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3672.             eval list=\$$(toupper $thing)_LIST

  3673.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3674.             list=$(filter "$name" $list)

  3675.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3676.             $action $list

  3677.         ;;

  3678.         --enable-yasm|--disable-yasm)

  3679.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3680.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3681.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3682.         ;;

  3683.         --yasmexe=*)

  3684.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3685.                  "removed in the future. Use --x86asmexe instead."

  3686.             x86asmexe="$optval"

  3687.         ;;

  3688.         --enable-?*|--disable-?*)

  3689.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3690.             if is_in $option $COMPONENT_LIST; then

  3691.                 test $action = disable && action=unset

  3692.                 eval $action \$$(toupper ${option%s})_LIST

  3693.             elif is_in $option $CMDLINE_SELECT; then

  3694.                 $action $option

  3695.             else

  3696.                 die_unknown $opt

  3697.             fi

  3698.         ;;

  3699.         --list-*)

  3700.             NAME="${opt#--list-}"

  3701.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3702.             NAME=${NAME%s}

  3703.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3704.         ;;

  3705.         --help|-h) show_help

  3706.         ;;

  3707.         --quiet|-q) quiet=yes

  3708.         ;;

  3709.         --fatal-warnings) enable fatal_warnings

  3710.         ;;

  3711.         --libfuzzer=*)

  3712.             libfuzzer_path="$optval"

  3713.         ;;

  3714.         *)

  3715.             optname="${opt%%=*}"

  3716.             optname="${optname#--}"

  3717.             optname=$(echo "$optname" | sed 's/-/_/g')

  3718.             if is_in $optname $CMDLINE_SET; then

  3719.                 eval $optname='$optval'

  3720.             elif is_in $optname $CMDLINE_APPEND; then

  3721.                 append $optname "$optval"

  3722.             else

  3723.                 die_unknown $opt

  3724.             fi

  3725.         ;;

  3726.     esac

  3727. done

  3728. 

  3729. for e in $env; do

  3730.     eval "export $e"

  3731. done

  3732. 

  3733. if disabled autodetect; then

  3734. 

  3735.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3736.     # for the iconv from the libc.

  3737.     disabled iconv || enable libc_iconv

  3738. 

  3739.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3740.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3741. fi

  3742. # Mark specifically enabled, but normally autodetected libraries as requested.

  3743. for lib in $AUTODETECT_LIBS; do

  3744.     enabled $lib && request $lib

  3745. done

  3746. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3747. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3748. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3749. 

  3750. disabled logging && logfile=/dev/null

  3751. 

  3752. # command line configuration sanity checks

  3753. 

  3754. # we need to build at least one lib type

  3755. if ! enabled_any static shared; then

  3756.     cat <<EOF

  3757. At least one library type must be built.

  3758. Specify --enable-static to build the static libraries or --enable-shared to

  3759. build the shared libraries as well. To only build the shared libraries specify

  3760. --disable-static in addition to --enable-shared.

  3761. EOF

  3762.     exit 1

  3763. fi

  3764. 

  3765. die_license_disabled() {

  3766.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3767. }

  3768. 

  3769. die_license_disabled_gpl() {

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

  3771. }

  3772. 

  3773. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3774. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3775. 

  3776. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3777. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3778. 

  3779. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3780. 

  3781. enabled_all gnutls openssl &&

  3782.     die "GnuTLS and OpenSSL must not be enabled at the same time."

  3783. 

  3784. # Disable all the library-specific components if the library itself

  3785. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3786. 

  3787. disable_components(){

  3788.     disabled ${1} && disable $(

  3789.         eval components="\$$(toupper ${1})_COMPONENTS"

  3790.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3791.     )

  3792. }

  3793. 

  3794. map 'disable_components $v' $LIBRARY_LIST

  3795. 

  3796. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3797. set >> $logfile

  3798. 

  3799. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3800. 

  3801. enabled ossfuzz && {

  3802.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3803.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3804. }

  3805. 

  3806. case "$toolchain" in

  3807.     *-asan)

  3808.         cc_default="${toolchain%-asan}"

  3809.         add_cflags  -fsanitize=address

  3810.         add_ldflags -fsanitize=address

  3811.     ;;

  3812.     *-msan)

  3813.         cc_default="${toolchain%-msan}"

  3814.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3815.         add_ldflags -fsanitize=memory

  3816.     ;;

  3817.     *-tsan)

  3818.         cc_default="${toolchain%-tsan}"

  3819.         add_cflags  -fsanitize=thread -fPIE

  3820.         add_ldflags -fsanitize=thread -pie

  3821.         case "$toolchain" in

  3822.             gcc-tsan)

  3823.                 add_cflags  -fPIC

  3824.                 add_ldflags -fPIC

  3825.                 ;;

  3826.         esac

  3827.     ;;

  3828.     *-usan)

  3829.         cc_default="${toolchain%-usan}"

  3830.         add_cflags  -fsanitize=undefined

  3831.         add_ldflags -fsanitize=undefined

  3832.     ;;

  3833.     valgrind-*)

  3834.         target_exec_default="valgrind"

  3835.         case "$toolchain" in

  3836.             valgrind-massif)

  3837.                 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"

  3838.                 ;;

  3839.             valgrind-memcheck)

  3840.                 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"

  3841.                 ;;

  3842.         esac

  3843.     ;;

  3844.     msvc)

  3845.         # Check whether the current MSVC version needs the C99 converter.

  3846.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3847.         # support enough of C99 to build ffmpeg. Default to the new

  3848.         # behaviour if the regexp was unable to match anything, since this

  3849.         # successfully parses the version number of existing supported

  3850.         # versions that require the converter (MSVC 2010 and 2012).

  3851.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3852.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3853.             cc_default="cl"

  3854.             cxx_default="cl"

  3855.         else

  3856.             cc_default="c99wrap cl"

  3857.             cxx_default="c99wrap cl"

  3858.         fi

  3859.         ld_default="$source_path/compat/windows/mslink"

  3860.         nm_default="dumpbin -symbols"

  3861.         ar_default="lib"

  3862.         case "$arch" in

  3863.         aarch64|arm64)

  3864.             as_default="armasm64"

  3865.             ;;

  3866.         arm*)

  3867.             as_default="armasm"

  3868.             ;;

  3869.         esac

  3870.         target_os_default="win32"

  3871.         # Use a relative path for TMPDIR. This makes sure all the

  3872.         # ffconf temp files are written with a relative path, avoiding

  3873.         # issues with msys/win32 path conversion for MSVC parameters

  3874.         # such as -Fo<file> or -out:<file>.

  3875.         TMPDIR=.

  3876.     ;;

  3877.     icl)

  3878.         cc_default="icl"

  3879.         ld_default="xilink"

  3880.         nm_default="dumpbin -symbols"

  3881.         ar_default="xilib"

  3882.         target_os_default="win32"

  3883.         TMPDIR=.

  3884.     ;;

  3885.     gcov)

  3886.         add_cflags  -fprofile-arcs -ftest-coverage

  3887.         add_ldflags -fprofile-arcs -ftest-coverage

  3888.     ;;

  3889.     llvm-cov)

  3890.         add_cflags -fprofile-arcs -ftest-coverage

  3891.         add_ldflags --coverage

  3892.     ;;

  3893.     hardened)

  3894.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3895.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3896.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3897.         add_cflags   -fPIE

  3898.         add_ldexeflags -fPIE -pie

  3899.     ;;

  3900.     ?*)

  3901.         die "Unknown toolchain $toolchain"

  3902.     ;;

  3903. esac

  3904. 

  3905. if test -n "$cross_prefix"; then

  3906.     test -n "$arch" && test -n "$target_os" ||

  3907.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3908.     enable cross_compile

  3909. fi

  3910. 

  3911. ar_default="${cross_prefix}${ar_default}"

  3912. cc_default="${cross_prefix}${cc_default}"

  3913. cxx_default="${cross_prefix}${cxx_default}"

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

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

  3916. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3917.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3918. else

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

  3920. fi

  3921. strip_default="${cross_prefix}${strip_default}"

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

  3923. 

  3924. sysinclude_default="${sysroot}/usr/include"

  3925. 

  3926. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3927.     target_exec target_os x86asmexe nvcc

  3928. enabled cross_compile || host_cc_default=$cc

  3929. set_default host_cc

  3930. 

  3931. pkg_config_fail_message=""

  3932. if ! $pkg_config --version >/dev/null 2>&1; then

  3933.     warn "$pkg_config not found, library detection may fail."

  3934.     pkg_config=false

  3935. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3936.     pkg_config_fail_message="

  3937. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3938. fi

  3939. 

  3940. if test $doxygen != $doxygen_default && \

  3941.   ! $doxygen --version >/dev/null 2>&1; then

  3942.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3943. fi

  3944. 

  3945. exesuf() {

  3946.     case $1 in

  3947.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3948.     esac

  3949. }

  3950. 

  3951. EXESUF=$(exesuf $target_os)

  3952. HOSTEXESUF=$(exesuf $host_os)

  3953. 

  3954. # set temporary file name

  3955. : ${TMPDIR:=$TEMPDIR}

  3956. : ${TMPDIR:=$TMP}

  3957. : ${TMPDIR:=/tmp}

  3958. 

  3959. if [ -n "$tempprefix" ] ; then

  3960.     mktemp(){

  3961.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3962.         echo "$tmpname"

  3963.         mkdir "$tmpname"

  3964.     }

  3965. elif ! check_cmd mktemp -u XXXXXX; then

  3966.     # simple replacement for missing mktemp

  3967.     # NOT SAFE FOR GENERAL USE

  3968.     mktemp(){

  3969.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3970.         echo "$tmpname"

  3971.         mkdir "$tmpname"

  3972.     }

  3973. fi

  3974. 

  3975. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3976.     die "Unable to create temporary directory in $TMPDIR."

  3977. 

  3978. tmpfile(){

  3979.     tmp="${FFTMPDIR}/test"$2

  3980.     (set -C; exec > $tmp) 2> /dev/null ||

  3981.         die "Unable to create temporary file in $FFTMPDIR."

  3982.     eval $1=$tmp

  3983. }

  3984. 

  3985. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3986. trap 'exit 2' INT

  3987. 

  3988. tmpfile TMPASM .asm

  3989. tmpfile TMPC   .c

  3990. tmpfile TMPCPP .cpp

  3991. tmpfile TMPE   $EXESUF

  3992. tmpfile TMPH   .h

  3993. tmpfile TMPM   .m

  3994. tmpfile TMPO   .o

  3995. tmpfile TMPS   .S

  3996. tmpfile TMPSH  .sh

  3997. tmpfile TMPV   .ver

  3998. 

  3999. unset -f mktemp

  4000. 

  4001. chmod +x $TMPE

  4002. 

  4003. # make sure we can execute files in $TMPDIR

  4004. cat > $TMPSH 2>> $logfile <<EOF

  4005. #! /bin/sh

  4006. EOF

  4007. chmod +x $TMPSH >> $logfile 2>&1

  4008. if ! $TMPSH >> $logfile 2>&1; then

  4009.     cat <<EOF

  4010. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  4011. variable to another directory and make sure that it is not mounted noexec.

  4012. EOF

  4013.     die "Sanity test failed."

  4014. fi

  4015. 

  4016. armasm_flags(){

  4017.     for flag; do

  4018.         case $flag in

  4019.             # Filter out MSVC cl.exe options from cflags that shouldn't

  4020.             # be passed to gas-preprocessor

  4021.             -M[TD]*)                                            ;;

  4022.             *)                  echo $flag                      ;;

  4023.         esac

  4024.    done

  4025. }

  4026. 

  4027. cparser_flags(){

  4028.     for flag; do

  4029.         case $flag in

  4030.             -Wno-switch)             echo -Wno-switch-enum ;;

  4031.             -Wno-format-zero-length) ;;

  4032.             -Wdisabled-optimization) ;;

  4033.             -Wno-pointer-sign)       echo -Wno-other ;;

  4034.             *)                       echo $flag ;;

  4035.         esac

  4036.     done

  4037. }

  4038. 

  4039. msvc_common_flags(){

  4040.     for flag; do

  4041.         case $flag in

  4042.             # In addition to specifying certain flags under the compiler

  4043.             # specific filters, they must be specified here as well or else the

  4044.             # generic catch all at the bottom will print the original flag.

  4045.             -Wall)                ;;

  4046.             -Wextra)              ;;

  4047.             -std=c99)             ;;

  4048.             # Common flags

  4049.             -fomit-frame-pointer) ;;

  4050.             -g)                   echo -Z7 ;;

  4051.             -fno-math-errno)      ;;

  4052.             -fno-common)          ;;

  4053.             -fno-signed-zeros)    ;;

  4054.             -fPIC)                ;;

  4055.             -mthumb)              ;;

  4056.             -march=*)             ;;

  4057.             -lz)                  echo zlib.lib ;;

  4058.             -lx264)               echo libx264.lib ;;

  4059.             -lstdc++)             ;;

  4060.             -l*)                  echo ${flag#-l}.lib ;;

  4061.             -LARGEADDRESSAWARE)   echo $flag ;;

  4062.             -L*)                  echo -libpath:${flag#-L} ;;

  4063.             *)                    echo $flag ;;

  4064.         esac

  4065.     done

  4066. }

  4067. 

  4068. msvc_flags(){

  4069.     msvc_common_flags "$@"

  4070.     for flag; do

  4071.         case $flag in

  4072.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  4073.                                        -wd4554 ;;

  4074.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  4075.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  4076.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  4077.                                        -wd4307 \

  4078.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  4079.         esac

  4080.     done

  4081. }

  4082. 

  4083. icl_flags(){

  4084.     msvc_common_flags "$@"

  4085.     for flag; do

  4086.         case $flag in

  4087.             # Despite what Intel's documentation says -Wall, which is supported

  4088.             # on Windows, does enable remarks so disable them here.

  4089.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  4090.             -std=c99)             echo -Qstd=c99 ;;

  4091.             -flto)                echo -ipo ;;

  4092.         esac

  4093.     done

  4094. }

  4095. 

  4096. icc_flags(){

  4097.     for flag; do

  4098.         case $flag in

  4099.             -flto)                echo -ipo ;;

  4100.             *)                    echo $flag ;;

  4101.         esac

  4102.     done

  4103. }

  4104. 

  4105. suncc_flags(){

  4106.     for flag; do

  4107.         case $flag in

  4108.             -march=*|-mcpu=*)

  4109.                 case "${flag#*=}" in

  4110.                     native)                   echo -xtarget=native       ;;

  4111.                     v9|niagara)               echo -xarch=sparc          ;;

  4112.                     ultrasparc)               echo -xarch=sparcvis       ;;

  4113.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  4114.                     i586|pentium)             echo -xchip=pentium        ;;

  4115.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  4116.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  4117.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  4118.                     pentium4*)          echo -xtarget=pentium4           ;;

  4119.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  4120.                     *-sse3)             echo -xarch=sse3                 ;;

  4121.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  4122.                     bonnell)                   echo -xarch=ssse3         ;;

  4123.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  4124.                     westmere)                  echo -xtarget=westmere    ;;

  4125.                     silvermont)                echo -xarch=sse4_2        ;;

  4126.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4127.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4128.                                                echo -xarch=avx           ;;

  4129.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4130.                     btver1)                    echo -xarch=amdsse4a      ;;

  4131.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4132.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4133.                     k8|opteron|athlon64|athlon-fx)

  4134.                                                echo -xarch=sse2a         ;;

  4135.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4136.                 esac

  4137.                 ;;

  4138.             -std=c99)             echo -xc99              ;;

  4139.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4140.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4141.             -W*,*)                echo $flag              ;;

  4142.             -f*-*|-W*|-mimpure-text)                      ;;

  4143.             -shared)              echo -G                 ;;

  4144.             *)                    echo $flag              ;;

  4145.         esac

  4146.     done

  4147. }

  4148. 

  4149. probe_cc(){

  4150.     pfx=$1

  4151.     _cc=$2

  4152.     first=$3

  4153. 

  4154.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4155.     unset _ld_o _ldflags _ld_lib _ld_path

  4156.     unset _depflags _DEPCMD _DEPFLAGS

  4157.     _flags_filter=echo

  4158. 

  4159.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4160.         true # no-op to avoid reading stdin in following checks

  4161.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4162.         _type=llvm_gcc

  4163.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4164.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4165.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4166.         _cflags_speed='-O3'

  4167.         _cflags_size='-Os'

  4168.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4169.         _type=gcc

  4170.         gcc_version=$($_cc --version | head -n1)

  4171.         gcc_basever=$($_cc -dumpversion)

  4172.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4173.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4174.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4175.         case $gcc_basever in

  4176.             2) ;;

  4177.             2.*) ;;

  4178.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4179.         esac

  4180.         if [ "$first" = true ]; then

  4181.             case $gcc_basever in

  4182.                 4.2*)

  4183.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4184.             esac

  4185.         fi

  4186.         _cflags_speed='-O3'

  4187.         _cflags_size='-Os'

  4188.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4189.         _type=icc

  4190.         _ident=$($_cc --version | head -n1)

  4191.         _depflags='-MMD'

  4192.         _cflags_speed='-O3'

  4193.         _cflags_size='-Os'

  4194.         _cflags_noopt='-O1'

  4195.         _flags_filter=icc_flags

  4196.     elif $_cc -v 2>&1 | grep -q xlc; then

  4197.         _type=xlc

  4198.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4199.         _cflags_speed='-O5'

  4200.         _cflags_size='-O5 -qcompact'

  4201.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4202.         test -d "$sysroot" || die "No valid sysroot specified."

  4203.         _type=armcc

  4204.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4205.         armcc_conf="$PWD/armcc.conf"

  4206.         $_cc --arm_linux_configure                 \

  4207.              --arm_linux_config_file="$armcc_conf" \

  4208.              --configure_sysroot="$sysroot"        \

  4209.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4210.              die "Error creating armcc configuration file."

  4211.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4212.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4213.         as_default="${cross_prefix}gcc"

  4214.         _depflags='-MMD'

  4215.         _cflags_speed='-O3'

  4216.         _cflags_size='-Os'

  4217.     elif $_cc -v 2>&1 | grep -q clang; then

  4218.         _type=clang

  4219.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4220.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4221.         _cflags_speed='-O3'

  4222.         _cflags_size='-Oz'

  4223.     elif $_cc -V 2>&1 | grep -q Sun; then

  4224.         _type=suncc

  4225.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4226.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4227.         _DEPFLAGS='-xM1 -xc99'

  4228.         _ldflags='-std=c99'

  4229.         _cflags_speed='-O5'

  4230.         _cflags_size='-O5 -xspace'

  4231.         _flags_filter=suncc_flags

  4232.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4233.         _type=pathscale

  4234.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4235.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4236.         _cflags_speed='-O2'

  4237.         _cflags_size='-Os'

  4238.         _flags_filter='filter_out -Wdisabled-optimization'

  4239.     elif $_cc -v 2>&1 | grep -q Open64; then

  4240.         _type=open64

  4241.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4242.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4243.         _cflags_speed='-O2'

  4244.         _cflags_size='-Os'

  4245.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4246.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4247.         _type=armasm

  4248.         _ident=$($_cc | head -n1)

  4249.         # 4509: "This form of conditional instruction is deprecated"

  4250.         _flags="-nologo -ignore 4509"

  4251.         _flags_filter=armasm_flags

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

  4253.         _type=icl

  4254.         _ident=$($_cc 2>&1 | head -n1)

  4255.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4256.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4257.         # versions (tested) as well.

  4258.         _cflags_speed="-O2"

  4259.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4260.         if $_cc 2>&1 | grep -q Linker; then

  4261.             _ld_o='-out:$@'

  4262.         else

  4263.             _ld_o='-Fe$@'

  4264.         fi

  4265.         _cc_o='-Fo$@'

  4266.         _cc_e='-P'

  4267.         _flags_filter=icl_flags

  4268.         _ld_lib='lib%.a'

  4269.         _ld_path='-libpath:'

  4270.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4271.         _flags='-nologo -Qdiag-error:4044,10157'

  4272.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4273.         # with MSVC which enables it by default.

  4274.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4275.         disable stripping

  4276.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4277.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4278.         # the -? parameter gives the help output which contains an identifyable

  4279.         # string, while it gives an error in other modes.

  4280.         _type=lld-link

  4281.         # The link.exe mode doesn't have a switch for getting the version,

  4282.         # but we can force it back to gnu mode and get the version from there.

  4283.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4284.         _ld_o='-out:$@'

  4285.         _flags_filter=msvc_flags

  4286.         _ld_lib='lib%.a'

  4287.         _ld_path='-libpath:'

  4288.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4289.         _type=msvc

  4290.         _ident=$($_cc 2>&1 | head -n1)

  4291.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4292.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4293.         _cflags_speed="-O2"

  4294.         _cflags_size="-O1"

  4295.         _cflags_noopt="-O1"

  4296.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4297.             _ld_o='-out:$@'

  4298.         else

  4299.             _ld_o='-Fe$@'

  4300.         fi

  4301.         _cc_o='-Fo$@'

  4302.         _cc_e='-P -Fi$@'

  4303.         _flags_filter=msvc_flags

  4304.         _ld_lib='lib%.a'

  4305.         _ld_path='-libpath:'

  4306.         _flags='-nologo'

  4307.         disable stripping

  4308.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4309.         _type=cparser

  4310.         _ident=$($_cc --version | head -n1)

  4311.         _depflags='-MMD'

  4312.         _cflags_speed='-O4'

  4313.         _cflags_size='-O2'

  4314.         _flags_filter=cparser_flags

  4315.     fi

  4316. 

  4317.     eval ${pfx}_type=\$_type

  4318.     eval ${pfx}_ident=\$_ident

  4319. }

  4320. 

  4321. set_ccvars(){

  4322.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4323.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4324.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4325. 

  4326.     if [ -n "$_depflags" ]; then

  4327.         eval ${1}_DEPFLAGS=\$_depflags

  4328.     else

  4329.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4330.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4331.         eval DEP${1}FLAGS=\$_flags

  4332.     fi

  4333. }

  4334. 

  4335. probe_cc cc "$cc" "true"

  4336. cflags_filter=$_flags_filter

  4337. cflags_speed=$_cflags_speed

  4338. cflags_size=$_cflags_size

  4339. cflags_noopt=$_cflags_noopt

  4340. add_cflags $_flags $_cflags

  4341. cc_ldflags=$_ldflags

  4342. set_ccvars CC

  4343. set_ccvars CXX

  4344. 

  4345. probe_cc hostcc "$host_cc"

  4346. host_cflags_filter=$_flags_filter

  4347. host_cflags_speed=$_cflags_speed

  4348. add_host_cflags  $_flags $_cflags

  4349. set_ccvars HOSTCC

  4350. 

  4351. test -n "$cc_type" && enable $cc_type ||

  4352.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4353. 

  4354. : ${as_default:=$cc}

  4355. : ${objcc_default:=$cc}

  4356. : ${dep_cc_default:=$cc}

  4357. : ${ld_default:=$cc}

  4358. : ${host_ld_default:=$host_cc}

  4359. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4360. 

  4361. probe_cc as "$as"

  4362. asflags_filter=$_flags_filter

  4363. add_asflags $_flags $_cflags

  4364. set_ccvars AS

  4365. 

  4366. probe_cc objcc "$objcc"

  4367. objcflags_filter=$_flags_filter

  4368. add_objcflags $_flags $_cflags

  4369. set_ccvars OBJC

  4370. 

  4371. probe_cc ld "$ld"

  4372. ldflags_filter=$_flags_filter

  4373. add_ldflags $_flags $_ldflags

  4374. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4375. LD_O=${_ld_o-$LD_O}

  4376. LD_LIB=${_ld_lib-$LD_LIB}

  4377. LD_PATH=${_ld_path-$LD_PATH}

  4378. 

  4379. probe_cc hostld "$host_ld"

  4380. host_ldflags_filter=$_flags_filter

  4381. add_host_ldflags $_flags $_ldflags

  4382. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4383. 

  4384. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4385.     probe_cc depcc "$dep_cc"

  4386.     CCDEP=${_DEPCMD:-$DEPCMD}

  4387.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4388.     DEPCCFLAGS=$_flags

  4389. fi

  4390. 

  4391. if $ar 2>&1 | grep -q Microsoft; then

  4392.     arflags="-nologo"

  4393.     ar_o='-out:$@'

  4394. elif $ar 2>&1 | grep -q "\[D\] "; then

  4395.     arflags="rcD"

  4396.     ar_o='$@'

  4397. else

  4398.     arflags="rc"

  4399.     ar_o='$@'

  4400. fi

  4401. 

  4402. add_cflags $extra_cflags

  4403. add_cxxflags $extra_cxxflags

  4404. add_objcflags $extra_objcflags

  4405. add_asflags $extra_cflags

  4406. 

  4407. if test -n "$sysroot"; then

  4408.     case "$cc_type" in

  4409.         gcc|llvm_gcc|clang)

  4410.             add_cppflags --sysroot="$sysroot"

  4411.             add_ldflags --sysroot="$sysroot"

  4412.         ;;

  4413.     esac

  4414. fi

  4415. 

  4416. if test "$cpu" = host; then

  4417.     enabled cross_compile &&

  4418.         die "--cpu=host makes no sense when cross-compiling."

  4419. 

  4420.     case "$cc_type" in

  4421.         gcc|llvm_gcc)

  4422.             check_native(){

  4423.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4424.                 sed -n "/cc1.*$1=/{

  4425.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4426.                             p

  4427.                             q

  4428.                         }" $TMPE

  4429.             }

  4430.             cpu=$(check_native -march || check_native -mcpu)

  4431.         ;;

  4432.         clang)

  4433.             check_native(){

  4434.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4435.                 sed -n "/cc1.*-target-cpu /{

  4436.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4437.                             p

  4438.                             q

  4439.                         }" $TMPE

  4440.             }

  4441.             cpu=$(check_native -march)

  4442.         ;;

  4443.     esac

  4444. 

  4445.     test "${cpu:-host}" = host &&

  4446.         die "--cpu=host not supported with compiler $cc"

  4447. fi

  4448. 

  4449. # Deal with common $arch aliases

  4450. case "$arch" in

  4451.     aarch64|arm64)

  4452.         arch="aarch64"

  4453.     ;;

  4454.     arm*|iPad*|iPhone*)

  4455.         arch="arm"

  4456.     ;;

  4457.     mips*|IP*)

  4458.         case "$arch" in

  4459.         *el)

  4460.             add_cppflags -EL

  4461.             add_ldflags -EL

  4462.         ;;

  4463.         *eb)

  4464.             add_cppflags -EB

  4465.             add_ldflags -EB

  4466.         ;;

  4467.         esac

  4468.         arch="mips"

  4469.     ;;

  4470.     parisc*|hppa*)

  4471.         arch="parisc"

  4472.     ;;

  4473.     "Power Macintosh"|ppc*|powerpc*)

  4474.         arch="ppc"

  4475.     ;;

  4476.     s390|s390x)

  4477.         arch="s390"

  4478.     ;;

  4479.     sh4|sh)

  4480.         arch="sh4"

  4481.     ;;

  4482.     sun4*|sparc*)

  4483.         arch="sparc"

  4484.     ;;

  4485.     tilegx|tile-gx)

  4486.         arch="tilegx"

  4487.     ;;

  4488.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4489.         arch="x86"

  4490.     ;;

  4491. esac

  4492. 

  4493. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4494. enable $arch

  4495. 

  4496. # Add processor-specific flags

  4497. if enabled aarch64; then

  4498. 

  4499.     case $cpu in

  4500.         armv*)

  4501.             cpuflags="-march=$cpu"

  4502.         ;;

  4503.         *)

  4504.             cpuflags="-mcpu=$cpu"

  4505.         ;;

  4506.     esac

  4507. 

  4508. elif enabled alpha; then

  4509. 

  4510.     cpuflags="-mcpu=$cpu"

  4511. 

  4512. elif enabled arm; then

  4513. 

  4514.     check_arm_arch() {

  4515.         check_cpp_condition stddef.h \

  4516.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4517.             $cpuflags

  4518.     }

  4519. 

  4520.     probe_arm_arch() {

  4521.         if   check_arm_arch 4;        then echo armv4

  4522.         elif check_arm_arch 4T;       then echo armv4t

  4523.         elif check_arm_arch 5;        then echo armv5

  4524.         elif check_arm_arch 5E;       then echo armv5e

  4525.         elif check_arm_arch 5T;       then echo armv5t

  4526.         elif check_arm_arch 5TE;      then echo armv5te

  4527.         elif check_arm_arch 5TEJ;     then echo armv5te

  4528.         elif check_arm_arch 6;        then echo armv6

  4529.         elif check_arm_arch 6J;       then echo armv6j

  4530.         elif check_arm_arch 6K;       then echo armv6k

  4531.         elif check_arm_arch 6Z;       then echo armv6z

  4532.         elif check_arm_arch 6KZ;      then echo armv6zk

  4533.         elif check_arm_arch 6ZK;      then echo armv6zk

  4534.         elif check_arm_arch 6T2;      then echo armv6t2

  4535.         elif check_arm_arch 7;        then echo armv7

  4536.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4537.         elif check_arm_arch 7S;       then echo armv7-a

  4538.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4539.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4540.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4541.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4542.         fi

  4543.     }

  4544. 

  4545.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4546. 

  4547.     case $cpu in

  4548.         armv*)

  4549.             cpuflags="-march=$cpu"

  4550.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4551.         ;;

  4552.         *)

  4553.             cpuflags="-mcpu=$cpu"

  4554.             case $cpu in

  4555.                 cortex-a*)                               subarch=armv7a  ;;

  4556.                 cortex-r*)                               subarch=armv7r  ;;

  4557.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4558.                 arm11*)                                  subarch=armv6   ;;

  4559.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4560.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4561.                 *)                             subarch=$(probe_arm_arch) ;;

  4562.             esac

  4563.         ;;

  4564.     esac

  4565. 

  4566.     case "$subarch" in

  4567.         armv5t*)    enable fast_clz                ;;

  4568.         armv[6-8]*)

  4569.             enable fast_clz

  4570.             disabled fast_unaligned || enable fast_unaligned

  4571.             ;;

  4572.     esac

  4573. 

  4574. elif enabled avr32; then

  4575. 

  4576.     case $cpu in

  4577.         ap7[02]0[0-2])

  4578.             subarch="avr32_ap"

  4579.             cpuflags="-mpart=$cpu"

  4580.         ;;

  4581.         ap)

  4582.             subarch="avr32_ap"

  4583.             cpuflags="-march=$cpu"

  4584.         ;;

  4585.         uc3[ab]*)

  4586.             subarch="avr32_uc"

  4587.             cpuflags="-mcpu=$cpu"

  4588.         ;;

  4589.         uc)

  4590.             subarch="avr32_uc"

  4591.             cpuflags="-march=$cpu"

  4592.         ;;

  4593.     esac

  4594. 

  4595. elif enabled bfin; then

  4596. 

  4597.     cpuflags="-mcpu=$cpu"

  4598. 

  4599. elif enabled mips; then

  4600. 

  4601.     cpuflags="-march=$cpu"

  4602. 

  4603.     if [ "$cpu" != "generic" ]; then

  4604.         disable mips32r2

  4605.         disable mips32r5

  4606.         disable mips64r2

  4607.         disable mips32r6

  4608.         disable mips64r6

  4609.         disable loongson2

  4610.         disable loongson3

  4611. 

  4612.         case $cpu in

  4613.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4614.                 enable mips32r2

  4615.                 disable msa

  4616.             ;;

  4617.             p5600|i6400|p6600)

  4618.                 disable mipsdsp

  4619.                 disable mipsdspr2

  4620.             ;;

  4621.             loongson*)

  4622.                 enable loongson2

  4623.                 enable loongson3

  4624.                 enable local_aligned

  4625.                 enable simd_align_16

  4626.                 enable fast_64bit

  4627.                 enable fast_clz

  4628.                 enable fast_cmov

  4629.                 enable fast_unaligned

  4630.                 disable aligned_stack

  4631.                 disable mipsfpu

  4632.                 disable mipsdsp

  4633.                 disable mipsdspr2

  4634.                 case $cpu in

  4635.                     loongson3*)

  4636.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4637.                     ;;

  4638.                     loongson2e)

  4639.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4640.                     ;;

  4641.                     loongson2f)

  4642.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4643.                     ;;

  4644.                 esac

  4645.             ;;

  4646.             *)

  4647.                 # Unknown CPU. Disable everything.

  4648.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4649.                 disable mipsfpu

  4650.                 disable mipsdsp

  4651.                 disable mipsdspr2

  4652.                 disable msa

  4653.                 disable mmi

  4654.             ;;

  4655.         esac

  4656. 

  4657.         case $cpu in

  4658.             24kc)

  4659.                 disable mipsfpu

  4660.                 disable mipsdsp

  4661.                 disable mipsdspr2

  4662.             ;;

  4663.             24kf*)

  4664.                 disable mipsdsp

  4665.                 disable mipsdspr2

  4666.             ;;

  4667.             24kec|34kc|1004kc)

  4668.                 disable mipsfpu

  4669.                 disable mipsdspr2

  4670.             ;;

  4671.             24kef*|34kf*|1004kf*)

  4672.                 disable mipsdspr2

  4673.             ;;

  4674.             74kc)

  4675.                 disable mipsfpu

  4676.             ;;

  4677.             p5600)

  4678.                 enable mips32r5

  4679.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4680.             ;;

  4681.             i6400)

  4682.                 enable mips64r6

  4683.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4684.             ;;

  4685.             p6600)

  4686.                 enable mips64r6

  4687.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4688.             ;;

  4689.         esac

  4690.     else

  4691.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4692.         warn 'generic cpu selected'

  4693.     fi

  4694. 

  4695. elif enabled ppc; then

  4696. 

  4697.     disable ldbrx

  4698. 

  4699.     case $(tolower $cpu) in

  4700.         601|ppc601|powerpc601)

  4701.             cpuflags="-mcpu=601"

  4702.             disable altivec

  4703.         ;;

  4704.         603*|ppc603*|powerpc603*)

  4705.             cpuflags="-mcpu=603"

  4706.             disable altivec

  4707.         ;;

  4708.         604*|ppc604*|powerpc604*)

  4709.             cpuflags="-mcpu=604"

  4710.             disable altivec

  4711.         ;;

  4712.         g3|75*|ppc75*|powerpc75*)

  4713.             cpuflags="-mcpu=750"

  4714.             disable altivec

  4715.         ;;

  4716.         g4|745*|ppc745*|powerpc745*)

  4717.             cpuflags="-mcpu=7450"

  4718.             disable vsx

  4719.         ;;

  4720.         74*|ppc74*|powerpc74*)

  4721.             cpuflags="-mcpu=7400"

  4722.             disable vsx

  4723.         ;;

  4724.         g5|970|ppc970|powerpc970)

  4725.             cpuflags="-mcpu=970"

  4726.             disable vsx

  4727.         ;;

  4728.         power[3-6]*)

  4729.             cpuflags="-mcpu=$cpu"

  4730.             disable vsx

  4731.         ;;

  4732.         power[7-8]*)

  4733.             cpuflags="-mcpu=$cpu"

  4734.         ;;

  4735.         cell)

  4736.             cpuflags="-mcpu=cell"

  4737.             enable ldbrx

  4738.             disable vsx

  4739.         ;;

  4740.         e500mc)

  4741.             cpuflags="-mcpu=e500mc"

  4742.             disable altivec

  4743.         ;;

  4744.         e500v2)

  4745.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4746.             disable altivec

  4747.             disable dcbzl

  4748.         ;;

  4749.         e500)

  4750.             cpuflags="-mcpu=8540 -mhard-float"

  4751.             disable altivec

  4752.             disable dcbzl

  4753.         ;;

  4754.     esac

  4755. 

  4756. elif enabled sparc; then

  4757. 

  4758.     case $cpu in

  4759.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4760.             cpuflags="-mcpu=$cpu"

  4761.         ;;

  4762.         ultrasparc*|niagara[234])

  4763.             cpuflags="-mcpu=$cpu"

  4764.         ;;

  4765.     esac

  4766. 

  4767. elif enabled x86; then

  4768. 

  4769.     case $cpu in

  4770.         i[345]86|pentium)

  4771.             cpuflags="-march=$cpu"

  4772.             disable i686

  4773.             disable mmx

  4774.         ;;

  4775.         # targets that do NOT support nopl and conditional mov (cmov)

  4776.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4777.             cpuflags="-march=$cpu"

  4778.             disable i686

  4779.         ;;

  4780.         # targets that do support nopl and conditional mov (cmov)

  4781.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4782.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4783.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4784.             cpuflags="-march=$cpu"

  4785.             enable i686

  4786.             enable fast_cmov

  4787.         ;;

  4788.         # targets that do support conditional mov but on which it's slow

  4789.         pentium4|pentium4m|prescott|nocona)

  4790.             cpuflags="-march=$cpu"

  4791.             enable i686

  4792.             disable fast_cmov

  4793.         ;;

  4794.     esac

  4795. 

  4796. fi

  4797. 

  4798. if [ "$cpu" != generic ]; then

  4799.     add_cflags  $cpuflags

  4800.     add_asflags $cpuflags

  4801.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4802. fi

  4803. 

  4804. # compiler sanity check

  4805. check_exec <<EOF

  4806. int main(void){ return 0; }

  4807. EOF

  4808. if test "$?" != 0; then

  4809.     echo "$cc is unable to create an executable file."

  4810.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4811.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4812.         echo "Only do this if you know what cross compiling means."

  4813.     fi

  4814.     die "C compiler test failed."

  4815. fi

  4816. 

  4817. add_cppflags -D_ISOC99_SOURCE

  4818. add_cxxflags -D__STDC_CONSTANT_MACROS

  4819. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4820. 

  4821. # some compilers silently accept -std=c11, so we also need to check that the

  4822. # version macro is defined properly

  4823. test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&

  4824.     add_cflags -std=c11 ||

  4825.     check_cflags -std=c99

  4826. 

  4827. check_cppflags -D_FILE_OFFSET_BITS=64

  4828. check_cppflags -D_LARGEFILE_SOURCE

  4829. 

  4830. add_host_cppflags -D_ISOC99_SOURCE

  4831. check_host_cflags -std=c99

  4832. check_host_cflags -Wall

  4833. check_host_cflags $host_cflags_speed

  4834. 

  4835. check_64bit(){

  4836.     arch32=$1

  4837.     arch64=$2

  4838.     expr=$3

  4839.     check_code cc "" "int test[2*($expr) - 1]" &&

  4840.         subarch=$arch64 || subarch=$arch32

  4841.     enable $subarch

  4842. }

  4843. 

  4844. case "$arch" in

  4845.     aarch64|alpha|ia64)

  4846.         enabled shared && enable_weak pic

  4847.     ;;

  4848.     mips)

  4849.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4850.         enabled shared && enable_weak pic

  4851.     ;;

  4852.     parisc)

  4853.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4854.         enabled shared && enable_weak pic

  4855.     ;;

  4856.     ppc)

  4857.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4858.         enabled shared && enable_weak pic

  4859.     ;;

  4860.     s390)

  4861.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4862.         enabled shared && enable_weak pic

  4863.     ;;

  4864.     sparc)

  4865.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4866.         enabled shared && enable_weak pic

  4867.     ;;

  4868.     x86)

  4869.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4870.         # Treat x32 as x64 for now. Note it also needs pic if shared

  4871.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4872.             subarch=x86_64 && enable x86_64 && disable x86_32

  4873.         if enabled x86_64; then

  4874.             enabled shared && enable_weak pic

  4875.             objformat=elf64

  4876.         fi

  4877.     ;;

  4878. esac

  4879. 

  4880. # OS specific

  4881. case $target_os in

  4882.     aix)

  4883.         SHFLAGS=-shared

  4884.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4885.         enabled shared && add_ldflags -Wl,-brtl

  4886.         arflags='-Xany -r -c'

  4887.         ;;

  4888.     android)

  4889.         disable symver

  4890.         enable section_data_rel_ro

  4891.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4892.         SLIB_INSTALL_LINKS=

  4893.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4894.         ;;

  4895.     haiku)

  4896.         prefix_default="/boot/common"

  4897.         network_extralibs="-lnetwork"

  4898.         host_extralibs=

  4899.         ;;

  4900.     sunos)

  4901.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4902.         enabled x86 && append SHFLAGS -mimpure-text

  4903.         network_extralibs="-lsocket -lnsl"

  4904.         add_cppflags -D__EXTENSIONS__

  4905.         # When using suncc to build, the Solaris linker will mark

  4906.         # an executable with each instruction set encountered by

  4907.         # the Solaris assembler.  As our libraries contain their own

  4908.         # guards for processor-specific code, instead suppress

  4909.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4910.         enabled_all suncc x86 &&

  4911.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4912.             add_ldflags -Wl,-M,mapfile

  4913.         nm_default='nm -P -g'

  4914.         version_script='-M'

  4915.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4916.         ;;

  4917.     netbsd)

  4918.         disable symver

  4919.         oss_indev_extralibs="-lossaudio"

  4920.         oss_outdev_extralibs="-lossaudio"

  4921.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4922.         ;;

  4923.     openbsd|bitrig)

  4924.         disable symver

  4925.         SHFLAGS='-shared'

  4926.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4927.         SLIB_INSTALL_LINKS=

  4928.         oss_indev_extralibs="-lossaudio"

  4929.         oss_outdev_extralibs="-lossaudio"

  4930.         ;;

  4931.     dragonfly)

  4932.         disable symver

  4933.         ;;

  4934.     freebsd)

  4935.         ;;

  4936.     bsd/os)

  4937.         add_extralibs -lpoll -lgnugetopt

  4938.         strip="strip -d"

  4939.         ;;

  4940.     darwin)

  4941.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4942.         install_name_dir_default='$(SHLIBDIR)'

  4943.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4944.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4945.         strip="${strip} -x"

  4946.         add_ldflags -Wl,-dynamic,-search_paths_first

  4947.         check_cflags -Werror=partial-availability

  4948.         SLIBSUF=".dylib"

  4949.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4950.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4951.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4952.         enabled_any pic shared x86_64 ||

  4953.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4954.         check_header dispatch/dispatch.h &&

  4955.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4956.         if test -n "$sysroot"; then

  4957.             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot

  4958.             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot

  4959.         fi

  4960.         version_script='-exported_symbols_list'

  4961.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4962.         ;;

  4963.     msys*)

  4964.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4965.         ;;

  4966.     mingw32*|mingw64*)

  4967.         target_os=mingw32

  4968.         if enabled shared; then

  4969.             # Cannot build both shared and static libs when using dllimport.

  4970.             disable static

  4971.         fi

  4972.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4973.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4974.         shlibdir_default="$bindir_default"

  4975.         SLIBPREF=""

  4976.         SLIBSUF=".dll"

  4977.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4978.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4979.         SLIB_EXTRA_CMD='cp $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4980.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4981.         SLIB_INSTALL_LINKS=

  4982.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4983.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4984.         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)'

  4985.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'

  4986.         enabled x86_64 && objformat="win64" || objformat="win32"

  4987.         ranlib=:

  4988.         enable dos_paths

  4989.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4990.         # Lets work around some stupidity in binutils.

  4991.         # ld will strip relocations from executables even though we need them

  4992.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4993.         # however ld then forgets what the entry point should be (oops) so we

  4994.         # have to manually (re)set it.

  4995.         if enabled x86_32; then

  4996.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4997.         elif enabled x86_64; then

  4998.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4999.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  5000.             # Set image base >4GB for extra entropy with HEASLR

  5001.             add_ldexeflags -Wl,--image-base,0x140000000

  5002.             append SHFLAGS -Wl,--image-base,0x180000000

  5003.         fi

  5004.         ;;

  5005.     win32|win64)

  5006.         disable symver

  5007.         if enabled shared; then

  5008.             # Link to the import library instead of the normal static library

  5009.             # for shared libs.

  5010.             LD_LIB='%.lib'

  5011.             # Cannot build both shared and static libs with MSVC or icl.

  5012.             disable static

  5013.         fi

  5014.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  5015.         shlibdir_default="$bindir_default"

  5016.         SLIBPREF=""

  5017.         SLIBSUF=".dll"

  5018.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5019.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5020.         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  5021.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5022.         SLIB_INSTALL_LINKS=

  5023.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  5024.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  5025.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  5026.         enabled x86_64 && objformat="win64" || objformat="win32"

  5027.         ranlib=:

  5028.         enable dos_paths

  5029.         ;;

  5030.     cygwin*)

  5031.         target_os=cygwin

  5032.         shlibdir_default="$bindir_default"

  5033.         SLIBPREF="cyg"

  5034.         SLIBSUF=".dll"

  5035.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5036.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  5037.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5038.         SLIB_INSTALL_LINKS=

  5039.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5040.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5041.         enabled x86_64 && objformat="win64" || objformat="win32"

  5042.         enable dos_paths

  5043.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5044.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5045.         ;;

  5046.     *-dos|freedos|opendos)

  5047.         network_extralibs="-lsocket"

  5048.         objformat="coff"

  5049.         enable dos_paths

  5050.         add_cppflags -U__STRICT_ANSI__

  5051.         ;;

  5052.     linux)

  5053.         enable section_data_rel_ro

  5054.         enabled_any arm aarch64 && enable_weak linux_perf

  5055.         ;;

  5056.     irix*)

  5057.         target_os=irix

  5058.         ranlib="echo ignoring ranlib"

  5059.         ;;

  5060.     os/2*)

  5061.         strip="lxlite -CS"

  5062.         striptype=""

  5063.         objformat="aout"

  5064.         add_cppflags -D_GNU_SOURCE

  5065.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5066.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5067.         LIBSUF="_s.a"

  5068.         SLIBPREF=""

  5069.         SLIBSUF=".dll"

  5070.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5071.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5072.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5073.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5074.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5075.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5076.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5077.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5078.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5079.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5080.         SLIB_INSTALL_LINKS=

  5081.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5082.         enable dos_paths

  5083.         enable_weak os2threads

  5084.         ;;

  5085.     gnu/kfreebsd)

  5086.         add_cppflags -D_BSD_SOURCE

  5087.         ;;

  5088.     gnu)

  5089.         ;;

  5090.     qnx)

  5091.         add_cppflags -D_QNX_SOURCE

  5092.         network_extralibs="-lsocket"

  5093.         ;;

  5094.     symbian)

  5095.         SLIBSUF=".dll"

  5096.         enable dos_paths

  5097.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5098.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5099.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5100.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5101.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5102.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5103.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5104.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5105.         ;;

  5106.     minix)

  5107.         ;;

  5108.     none)

  5109.         ;;

  5110.     *)

  5111.         die "Unknown OS '$target_os'."

  5112.         ;;

  5113. esac

  5114. 

  5115. # test if creating links works

  5116. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5117. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5118. mkdir "$link_dest"

  5119. $ln_s "$link_dest" "$link_name"

  5120. touch "$link_dest/test_file"

  5121. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5122.     # create link to source path

  5123.     [ -e src ] && rm src

  5124.     $ln_s "$source_path" src

  5125.     source_link=src

  5126. else

  5127.     # creating directory links doesn't work

  5128.     # fall back to using the full source path

  5129.     source_link="$source_path"

  5130. fi

  5131. # cleanup

  5132. rm -r "$link_dest"

  5133. rm -r "$link_name"

  5134. 

  5135. # determine libc flavour

  5136. 

  5137. probe_libc(){

  5138.     pfx=$1

  5139.     pfx_no_=${pfx%_}

  5140.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5141.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5142.         eval ${pfx}libc_type=uclibc

  5143.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5144.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5145.         eval ${pfx}libc_type=glibc

  5146.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5147.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5148.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5149.         eval ${pfx}libc_type=newlib

  5150.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5151.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5152.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5153.         eval ${pfx}libc_type=mingw64

  5154.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5155.             add_compat msvcrt/snprintf.o

  5156.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5157.         fi

  5158.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5159.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5160.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5161.         check_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&

  5162.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  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 < 0x0600" &&

  5173.             add_${pfx}cppflags -D_WIN32_WINNT=0x0600

  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 Vista 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=0x0600; }

  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 "vmovdqa32 [eax]{k1}{z}, zmm0"    || disable avx512_external

  5555.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5556.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5557.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5558.         check_x86asm "CPU amdnop" || disable cpunop

  5559.     fi

  5560. 

  5561.     case "$cpu" in

  5562.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5563.             disable fast_clz

  5564.         ;;

  5565.     esac

  5566. 

  5567. fi

  5568. 

  5569. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5570. 

  5571. check_ldflags -Wl,--as-needed

  5572. check_ldflags -Wl,-z,noexecstack

  5573. 

  5574. if ! disabled network; then

  5575.     check_func getaddrinfo $network_extralibs

  5576.     check_func inet_aton $network_extralibs

  5577. 

  5578.     check_type netdb.h "struct addrinfo"

  5579.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5580.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5581.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5582.     check_type poll.h "struct pollfd"

  5583.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5584.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5585.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5586.     check_type netinet/in.h "struct sockaddr_in6"

  5587.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5588.     check_type "sys/types.h sys/socket.h" socklen_t

  5589. 

  5590.     # Prefer arpa/inet.h over winsock2

  5591.     if check_header arpa/inet.h ; then

  5592.         check_func closesocket

  5593.     elif check_header winsock2.h ; then

  5594.         check_func_headers winsock2.h closesocket -lws2 &&

  5595.             network_extralibs="-lws2" ||

  5596.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5597.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5598.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5599. 

  5600.         check_type ws2tcpip.h socklen_t

  5601.         check_type ws2tcpip.h "struct addrinfo"

  5602.         check_type ws2tcpip.h "struct group_source_req"

  5603.         check_type ws2tcpip.h "struct ip_mreq_source"

  5604.         check_type ws2tcpip.h "struct ipv6_mreq"

  5605.         check_type winsock2.h "struct pollfd"

  5606.         check_struct winsock2.h "struct sockaddr" sa_len

  5607.         check_type ws2tcpip.h "struct sockaddr_in6"

  5608.         check_type ws2tcpip.h "struct sockaddr_storage"

  5609.     else

  5610.         disable network

  5611.     fi

  5612. fi

  5613. 

  5614. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5615. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5616. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5617. check_builtin sarestart signal.h "SA_RESTART"

  5618. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5619. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5620. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5621. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5622. 

  5623. case "$custom_allocator" in

  5624.     jemalloc)

  5625.         # jemalloc by default does not use a prefix

  5626.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5627.     ;;

  5628.     tcmalloc)

  5629.         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc

  5630.         malloc_prefix=tc_

  5631.     ;;

  5632. esac

  5633. 

  5634. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5635. check_func  ${malloc_prefix}memalign            && enable memalign

  5636. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5637. 

  5638. check_func  access

  5639. check_func_headers stdlib.h arc4random

  5640. check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt

  5641. check_func  fcntl

  5642. check_func  fork

  5643. check_func  gethrtime

  5644. check_func  getopt

  5645. check_func  getrusage

  5646. check_func  gettimeofday

  5647. check_func  isatty

  5648. check_func  mkstemp

  5649. check_func  mmap

  5650. check_func  mprotect

  5651. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5652. check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt

  5653. check_func  sched_getaffinity

  5654. check_func  setrlimit

  5655. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5656. check_func  strerror_r

  5657. check_func  sysconf

  5658. check_func  sysctl

  5659. check_func  usleep

  5660. 

  5661. check_func_headers conio.h kbhit

  5662. check_func_headers io.h setmode

  5663. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5664. check_func_headers mach/mach_time.h mach_absolute_time

  5665. check_func_headers stdlib.h getenv

  5666. check_func_headers sys/stat.h lstat

  5667. 

  5668. check_func_headers windows.h GetProcessAffinityMask

  5669. check_func_headers windows.h GetProcessTimes

  5670. check_func_headers windows.h GetSystemTimeAsFileTime

  5671. check_func_headers windows.h LoadLibrary

  5672. check_func_headers windows.h MapViewOfFile

  5673. check_func_headers windows.h PeekNamedPipe

  5674. check_func_headers windows.h SetConsoleTextAttribute

  5675. check_func_headers windows.h SetConsoleCtrlHandler

  5676. check_func_headers windows.h Sleep

  5677. check_func_headers windows.h VirtualAlloc

  5678. check_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_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"

  5746. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5747. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5748. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5749. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5750. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5751. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5752. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5753. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5754. 

  5755. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5756. 

  5757. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5758. 

  5759. if ! disabled w32threads && ! enabled pthreads; then

  5760.     check_func_headers "windows.h process.h" _beginthreadex &&

  5761.         check_type "windows.h" CONDITION_VARIABLE &&

  5762.         enable w32threads || disable w32threads

  5763.     if ! enabled w32threads && enabled winrt; then

  5764.         check_func_headers "windows.h" CreateThread &&

  5765.             enable w32threads || disable w32threads

  5766.     fi

  5767. fi

  5768. 

  5769. # check for some common methods of building with pthread support

  5770. # do this before the optional library checks as some of them require pthreads

  5771. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5772.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5773.        check_lib pthreads pthread.h pthread_create -pthread; then

  5774.         add_cflags -pthread

  5775.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5776.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5777.         add_cflags -pthreads

  5778.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5779.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5780.         add_cflags -ldl -pthread

  5781.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5782.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5783.         :

  5784.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5785.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5786.         :

  5787.     elif check_func pthread_join && check_func pthread_create; then

  5788.         enable pthreads

  5789.     fi

  5790.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5791. 

  5792.     if enabled pthreads; then

  5793.         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs

  5794.         check_func pthread_cancel $pthreads_extralibs

  5795.     fi

  5796. fi

  5797. 

  5798. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5799. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5800. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5801. 

  5802. # On some systems dynamic loading requires no extra linker flags

  5803. check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl

  5804. 

  5805. check_lib libm math.h sin -lm

  5806. 

  5807. atan2f_args=2

  5808. copysign_args=2

  5809. hypot_args=2

  5810. ldexpf_args=2

  5811. powf_args=2

  5812. 

  5813. for func in $MATH_FUNCS; do

  5814.     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs

  5815. done

  5816. 

  5817. for func in $COMPLEX_FUNCS; do

  5818.     eval check_complexfunc $func \${${func}_args:-1}

  5819. done

  5820. 

  5821. # these are off by default, so fail if requested and not available

  5822. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5823. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5824. enabled decklink          && { require_header DeckLinkAPI.h &&

  5825.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5826. enabled libndi_newtek     && require_header Processing.NDI.Lib.h

  5827. enabled frei0r            && require_header frei0r.h

  5828. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5829. enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init

  5830. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5831. enabled ladspa            && require_header ladspa.h

  5832. enabled lv2               && require_pkg_config lv2 lilv-0 "lilv-0/lilv/lilv.h" lilv_world_new

  5833. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5834. enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init

  5835. enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open

  5836. enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open

  5837. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5838.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5839.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5840. enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas

  5841. enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new

  5842. enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion

  5843. enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5844.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5845.                                  warn "using libfdk without pkg-config"; } }

  5846. 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"

  5847. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5848. enabled fontconfig        && enable libfontconfig

  5849. enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit

  5850. enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5851. enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info

  5852. enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||

  5853.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5854. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5855.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5856.                                done || die "ERROR: libgsm not found"; }

  5857. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs

  5858. enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5859. # While it may appear that require is being used as a pkg-config

  5860. # fallback for libmfx, it is actually being used to detect a different

  5861. # installation route altogether.  If libmfx is installed via the Intel

  5862. # Media SDK or Intel Media Server Studio, these don't come with

  5863. # pkg-config support.  Instead, users should make sure that the build

  5864. # can find the libraries and headers through other means.

  5865. enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||

  5866.                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }

  5867. enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load

  5868. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs

  5869. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs

  5870. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5871.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5872.                                die "ERROR: libnpp not found"; }

  5873. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5874. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5875. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5876.                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5877.                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5878.                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }

  5879. enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion

  5880. enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||

  5881.                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }

  5882. enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"

  5883. enabled libopus           && {

  5884.     enabled libopus_decoder && {

  5885.         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create

  5886.     }

  5887.     enabled libopus_encoder && {

  5888.         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create

  5889.     }

  5890. }

  5891. enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new

  5892. enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5893. enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket

  5894. enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"

  5895. enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer

  5896. enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||

  5897.                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }

  5898. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++

  5899. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  5900. enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init

  5901. enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init

  5902. enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate

  5903. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5904. enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure

  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 $libm_extralibs"

  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 $libm_extralibs"

  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 >= 2.7.0" 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. enabled amf &&

  6219.     check_cpp_condition "AMF/core/Version.h" \

  6220.         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001" ||

  6221.     disable amf

  6222. 

  6223. # Funny iconv installations are not unusual, so check it after all flags have been set

  6224. if enabled libc_iconv; then

  6225.     check_func_headers iconv.h iconv

  6226. elif enabled iconv; then

  6227.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6228. fi

  6229. 

  6230. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6231. 

  6232. # add some useful compiler flags if supported

  6233. check_cflags -Wdeclaration-after-statement

  6234. check_cflags -Wall

  6235. check_cflags -Wdisabled-optimization

  6236. check_cflags -Wpointer-arith

  6237. check_cflags -Wredundant-decls

  6238. check_cflags -Wwrite-strings

  6239. check_cflags -Wtype-limits

  6240. check_cflags -Wundef

  6241. check_cflags -Wmissing-prototypes

  6242. check_cflags -Wno-pointer-to-int-cast

  6243. check_cflags -Wstrict-prototypes

  6244. check_cflags -Wempty-body

  6245. 

  6246. if enabled extra_warnings; then

  6247.     check_cflags -Wcast-qual

  6248.     check_cflags -Wextra

  6249.     check_cflags -Wpedantic

  6250. fi

  6251. 

  6252. check_disable_warning(){

  6253.     warning_flag=-W${1#-Wno-}

  6254.     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1

  6255. }

  6256. 

  6257. test_cflags -Werror=unused-command-line-argument &&

  6258.     append unknown_warning_flags "-Werror=unused-command-line-argument"

  6259. test_cflags -Werror=unknown-warning-option &&

  6260.     append unknown_warning_flags "-Werror=unknown-warning-option"

  6261. 

  6262. check_disable_warning -Wno-parentheses

  6263. check_disable_warning -Wno-switch

  6264. check_disable_warning -Wno-format-zero-length

  6265. check_disable_warning -Wno-pointer-sign

  6266. check_disable_warning -Wno-unused-const-variable

  6267. check_disable_warning -Wno-bool-operation

  6268. 

  6269. check_disable_warning_headers(){

  6270.     warning_flag=-W${1#-Wno-}

  6271.     test_cflags $warning_flag && add_cflags_headers $1

  6272. }

  6273. 

  6274. check_disable_warning_headers -Wno-deprecated-declarations

  6275. check_disable_warning_headers -Wno-unused-variable

  6276. 

  6277. check_cc <<EOF && enable blocks_extension

  6278. void (^block)(void);

  6279. EOF

  6280. 

  6281. # add some linker flags

  6282. check_ldflags -Wl,--warn-common

  6283. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6284. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir

  6285. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6286. 

  6287. # add some strip flags

  6288. check_stripflags -x

  6289. 

  6290. enabled neon_clobber_test &&

  6291.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6292.                   -Wl,--wrap,avcodec_decode_audio4      \

  6293.                   -Wl,--wrap,avcodec_decode_video2      \

  6294.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6295.                   -Wl,--wrap,avcodec_encode_audio2      \

  6296.                   -Wl,--wrap,avcodec_encode_video2      \

  6297.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6298.                   -Wl,--wrap,avcodec_send_packet        \

  6299.                   -Wl,--wrap,avcodec_receive_packet     \

  6300.                   -Wl,--wrap,avcodec_send_frame         \

  6301.                   -Wl,--wrap,avcodec_receive_frame      \

  6302.                   -Wl,--wrap,swr_convert                \

  6303.                   -Wl,--wrap,avresample_convert ||

  6304.     disable neon_clobber_test

  6305. 

  6306. enabled xmm_clobber_test &&

  6307.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6308.                   -Wl,--wrap,avcodec_decode_audio4      \

  6309.                   -Wl,--wrap,avcodec_decode_video2      \

  6310.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6311.                   -Wl,--wrap,avcodec_encode_audio2      \

  6312.                   -Wl,--wrap,avcodec_encode_video2      \

  6313.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6314.                   -Wl,--wrap,avcodec_send_packet        \

  6315.                   -Wl,--wrap,avcodec_receive_packet     \

  6316.                   -Wl,--wrap,avcodec_send_frame         \

  6317.                   -Wl,--wrap,avcodec_receive_frame      \

  6318.                   -Wl,--wrap,swr_convert                \

  6319.                   -Wl,--wrap,avresample_convert         \

  6320.                   -Wl,--wrap,sws_scale ||

  6321.     disable xmm_clobber_test

  6322. 

  6323. check_ld "cc" <<EOF && enable proper_dce

  6324. extern const int array[512];

  6325. static inline int func(void) { return array[0]; }

  6326. int main(void) { return 0; }

  6327. EOF

  6328. 

  6329. if enabled proper_dce; then

  6330.     echo "X { local: *; };" > $TMPV

  6331.     if test_ldflags -Wl,${version_script},$TMPV; then

  6332.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6333.         quotes='""'

  6334.         check_cc <<EOF && enable symver_asm_label

  6335. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6336. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6337. EOF

  6338.         check_cc <<EOF && enable symver_gnu_asm

  6339. __asm__(".symver ff_foo,av_foo@VERSION");

  6340. void ff_foo(void) {}

  6341. EOF

  6342.     fi

  6343. fi

  6344. 

  6345. if [ -z "$optflags" ]; then

  6346.     if enabled small; then

  6347.         optflags=$cflags_size

  6348.     elif enabled optimizations; then

  6349.         optflags=$cflags_speed

  6350.     else

  6351.         optflags=$cflags_noopt

  6352.     fi

  6353. fi

  6354. 

  6355. if [ -z "$nvccflags" ]; then

  6356.     nvccflags=$nvccflags_default

  6357. fi

  6358. 

  6359. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6360.     nvccflags="$nvccflags -m64"

  6361. else

  6362.     nvccflags="$nvccflags -m32"

  6363. fi

  6364. 

  6365. check_optflags(){

  6366.     check_cflags "$@"

  6367.     enabled lto && check_ldflags "$@"

  6368. }

  6369. 

  6370. check_optflags $optflags

  6371. check_optflags -fno-math-errno

  6372. check_optflags -fno-signed-zeros

  6373. 

  6374. if enabled lto; then

  6375.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6376.     check_cflags  -flto

  6377.     check_ldflags -flto $cpuflags

  6378.     disable inline_asm_direct_symbol_refs

  6379. fi

  6380. 

  6381. enabled ftrapv && check_cflags -ftrapv

  6382. 

  6383. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6384. int x;

  6385. EOF

  6386. 

  6387. 

  6388. if enabled icc; then

  6389.     # Just warnings, no remarks

  6390.     check_cflags -w1

  6391.     # -wd: Disable following warnings

  6392.     # 144, 167, 556: -Wno-pointer-sign

  6393.     # 188: enumerated type mixed with another type

  6394.     # 1292: attribute "foo" ignored

  6395.     # 1419: external declaration in primary source file

  6396.     # 10006: ignoring unknown option -fno-signed-zeros

  6397.     # 10148: ignoring unknown option -Wno-parentheses

  6398.     # 10156: ignoring option '-W'; no argument required

  6399.     # 13200: No EMMS instruction before call to function

  6400.     # 13203: No EMMS instruction before return from function

  6401.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6402.     # 11030: Warning unknown option --as-needed

  6403.     # 10156: ignoring option '-export'; no argument required

  6404.     check_ldflags -wd10156,11030

  6405.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6406.     enable ebp_available

  6407.     # The test above does not test linking

  6408.     enabled lto && disable symver_asm_label

  6409.     if enabled x86_32; then

  6410.         icc_version=$($cc -dumpversion)

  6411.         test ${icc_version%%.*} -ge 11 &&

  6412.             check_cflags -falign-stack=maintain-16-byte ||

  6413.             disable aligned_stack

  6414.     fi

  6415. elif enabled gcc; then

  6416.     check_optflags -fno-tree-vectorize

  6417.     check_cflags -Werror=format-security

  6418.     check_cflags -Werror=implicit-function-declaration

  6419.     check_cflags -Werror=missing-prototypes

  6420.     check_cflags -Werror=return-type

  6421.     check_cflags -Werror=vla

  6422.     check_cflags -Wformat

  6423.     check_cflags -fdiagnostics-color=auto

  6424.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6425. elif enabled llvm_gcc; then

  6426.     check_cflags -mllvm -stack-alignment=16

  6427. elif enabled clang; then

  6428.     check_cflags -mllvm -stack-alignment=16

  6429.     check_cflags -mstack-alignment=16

  6430.     check_cflags -Qunused-arguments

  6431.     check_cflags -Werror=implicit-function-declaration

  6432.     check_cflags -Werror=missing-prototypes

  6433.     check_cflags -Werror=return-type

  6434. elif enabled cparser; then

  6435.     add_cflags -Wno-missing-variable-declarations

  6436.     add_cflags -Wno-empty-statement

  6437. elif enabled armcc; then

  6438.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6439.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6440.     # 2523: use of inline assembly is deprecated

  6441.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6442.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6443.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6444.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6445.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6446.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6447. elif enabled pathscale; then

  6448.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6449.     disable inline_asm

  6450. elif enabled_any msvc icl; then

  6451.     enabled x86_32 && disable aligned_stack

  6452.     enabled_all x86_32 debug && add_cflags -Oy-

  6453.     enabled debug && add_ldflags -debug

  6454.     enable pragma_deprecated

  6455.     if enabled icl; then

  6456.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6457.         # (correctly) on icl 13.x.

  6458.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6459.             add_cflags -Qansi-alias

  6460.         # Some inline asm is not compilable in debug

  6461.         if enabled debug; then

  6462.             disable ebp_available

  6463.             disable ebx_available

  6464.         fi

  6465.     fi

  6466.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6467.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6468.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6469.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6470.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6471.     # MSVC 2013 and newer can handle it fine.

  6472.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6473.     # happens in config.h.

  6474.     if [ $_restrict != restrict ]; then

  6475.         check_cc <<EOF || add_cflags -FIstdlib.h

  6476. __declspec($_restrict) void* foo(int);

  6477. EOF

  6478.     fi

  6479.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6480.     # Issue has been fixed in MSVC v19.00.24218.

  6481.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6482.         check_cflags -d2SSAOptimizer-

  6483.     # enable utf-8 source processing on VS2015 U2 and newer

  6484.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6485.         add_cflags -utf-8

  6486. fi

  6487. 

  6488. for pfx in "" host_; do

  6489.     varname=${pfx%_}cc_type

  6490.     eval "type=\$$varname"

  6491.     if [ "$type" = "msvc" ]; then

  6492.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6493. static inline int foo(int a) { return a; }

  6494. EOF

  6495.     fi

  6496. done

  6497. 

  6498. case $as_type in

  6499.     clang)

  6500.         add_asflags -Qunused-arguments

  6501.     ;;

  6502. esac

  6503. 

  6504. case $ld_type in

  6505.     clang)

  6506.         check_ldflags -Qunused-arguments

  6507.     ;;

  6508. esac

  6509. 

  6510. enable frame_thread_encoder

  6511. 

  6512. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6513. 

  6514. check_deps $CONFIG_LIST       \

  6515.            $CONFIG_EXTRA      \

  6516.            $HAVE_LIST         \

  6517.            $ALL_COMPONENTS    \

  6518. 

  6519. 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"

  6520. 

  6521. 

  6522. if test $target_os = "haiku"; then

  6523.     disable memalign

  6524.     disable posix_memalign

  6525. fi

  6526. 

  6527. flatten_extralibs(){

  6528.     unset nested_entries

  6529.     list_name=$1

  6530.     eval list=\$${1}

  6531.     for entry in $list; do

  6532.         entry_copy=$entry

  6533.         resolve entry_copy

  6534.         append nested_entries $(filter '*_extralibs' $entry_copy)

  6535.         flat_entries=$(filter_out '*_extralibs' $entry_copy)

  6536.         eval $entry="\$flat_entries"

  6537.     done

  6538.     append $list_name "$nested_entries"

  6539. 

  6540.     resolve nested_entries

  6541.     if test -n "$(filter '*_extralibs' $nested_entries)"; then

  6542.         flatten_extralibs $list_name

  6543.     fi

  6544. }

  6545. 

  6546. flatten_extralibs_wrapper(){

  6547.     list_name=$1

  6548.     flatten_extralibs $list_name

  6549.     unique $list_name

  6550.     resolve $list_name

  6551.     eval $list_name=\$\(\$ldflags_filter \$$list_name\)

  6552.     eval printf \''%s'\' \""\$$list_name"\"

  6553. }

  6554. 

  6555. for linkunit in $LIBRARY_LIST; do

  6556.     unset current_extralibs

  6557.     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST

  6558.     for comp in ${components}; do

  6559.         enabled $comp || continue

  6560.         comp_extralibs="${comp}_extralibs"

  6561.         append current_extralibs $comp_extralibs

  6562.     done

  6563.     eval prepend ${linkunit}_extralibs $current_extralibs

  6564. done

  6565. 

  6566. for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6567.     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)

  6568. done

  6569. 

  6570. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6571. 

  6572. for thread in $THREADS_LIST; do

  6573.     if enabled $thread; then

  6574.         test -n "$thread_type" &&

  6575.             die "ERROR: Only one thread type must be selected." ||

  6576.             thread_type="$thread"

  6577.     fi

  6578. done

  6579. 

  6580. if disabled stdatomic; then

  6581.     if enabled atomics_gcc; then

  6582.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6583.     elif enabled atomics_win32; then

  6584.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6585.     elif enabled atomics_suncc; then

  6586.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6587.     elif enabled pthreads; then

  6588.         add_compat atomics/pthread/stdatomic.o

  6589.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6590.     else

  6591.         enabled threads && die "Threading is enabled, but no atomics are available"

  6592.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6593.     fi

  6594. fi

  6595. 

  6596. # Check if requested libraries were found.

  6597. for lib in $AUTODETECT_LIBS; do

  6598.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6599. done

  6600. 

  6601. enabled zlib && add_cppflags -DZLIB_CONST

  6602. 

  6603. # conditional library dependencies, in linking order

  6604. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6605. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6606. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6607. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6608. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6609. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6610. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6611. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6612. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6613. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6614. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6615. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6616. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6617. enabled pan_filter          && prepend avfilter_deps "swresample"

  6618. enabled pp_filter           && prepend avfilter_deps "postproc"

  6619. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6620. enabled resample_filter && prepend avfilter_deps "avresample"

  6621. enabled sab_filter          && prepend avfilter_deps "swscale"

  6622. enabled scale_filter    && prepend avfilter_deps "swscale"

  6623. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6624. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6625. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6626. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6627. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6628. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6629. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6630. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6631. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6632. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6633. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6634. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6635. 

  6636. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6637. 

  6638. #FIXME

  6639. enabled sdl2_outdev     && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)

  6640. 

  6641. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6642. 

  6643. expand_deps(){

  6644.     lib_deps=${1}_deps

  6645.     eval "deps=\$$lib_deps"

  6646.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6647.     unique $lib_deps

  6648. }

  6649. 

  6650. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6651. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6652. 

  6653. map 'expand_deps $v' $LIBRARY_LIST

  6654. 

  6655. license="LGPL version 2.1 or later"

  6656. if enabled nonfree; then

  6657.     license="nonfree and unredistributable"

  6658. elif enabled gplv3; then

  6659.     license="GPL version 3 or later"

  6660. elif enabled lgplv3; then

  6661.     license="LGPL version 3 or later"

  6662. elif enabled gpl; then

  6663.     license="GPL version 2 or later"

  6664. fi

  6665. 

  6666. if test "$quiet" != "yes"; then

  6667. 

  6668. echo "install prefix            $prefix"

  6669. echo "source path               $source_path"

  6670. echo "C compiler                $cc"

  6671. echo "C library                 $libc_type"

  6672. if test "$host_cc" != "$cc"; then

  6673.     echo "host C compiler           $host_cc"

  6674.     echo "host C library            $host_libc_type"

  6675. fi

  6676. echo "ARCH                      $arch ($cpu)"

  6677. if test "$build_suffix" != ""; then

  6678.     echo "build suffix              $build_suffix"

  6679. fi

  6680. if test "$progs_suffix" != ""; then

  6681.     echo "progs suffix              $progs_suffix"

  6682. fi

  6683. if test "$extra_version" != ""; then

  6684.     echo "version string suffix     $extra_version"

  6685. fi

  6686. echo "big-endian                ${bigendian-no}"

  6687. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6688. if enabled x86; then

  6689.     echo "standalone assembly       ${x86asm-no}"

  6690.     echo "x86 assembler             ${x86asmexe}"

  6691.     echo "MMX enabled               ${mmx-no}"

  6692.     echo "MMXEXT enabled            ${mmxext-no}"

  6693.     echo "3DNow! enabled            ${amd3dnow-no}"

  6694.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6695.     echo "SSE enabled               ${sse-no}"

  6696.     echo "SSSE3 enabled             ${ssse3-no}"

  6697.     echo "AESNI enabled             ${aesni-no}"

  6698.     echo "AVX enabled               ${avx-no}"

  6699.     echo "AVX2 enabled              ${avx2-no}"

  6700.     echo "AVX-512 enabled           ${avx512-no}"

  6701.     echo "XOP enabled               ${xop-no}"

  6702.     echo "FMA3 enabled              ${fma3-no}"

  6703.     echo "FMA4 enabled              ${fma4-no}"

  6704.     echo "i686 features enabled     ${i686-no}"

  6705.     echo "CMOV is fast              ${fast_cmov-no}"

  6706.     echo "EBX available             ${ebx_available-no}"

  6707.     echo "EBP available             ${ebp_available-no}"

  6708. fi

  6709. if enabled aarch64; then

  6710.     echo "NEON enabled              ${neon-no}"

  6711.     echo "VFP enabled               ${vfp-no}"

  6712. fi

  6713. if enabled arm; then

  6714.     echo "ARMv5TE enabled           ${armv5te-no}"

  6715.     echo "ARMv6 enabled             ${armv6-no}"

  6716.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6717.     echo "VFP enabled               ${vfp-no}"

  6718.     echo "NEON enabled              ${neon-no}"

  6719.     echo "THUMB enabled             ${thumb-no}"

  6720. fi

  6721. if enabled mips; then

  6722.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6723.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6724.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6725.     echo "MIPS MSA enabled          ${msa-no}"

  6726.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6727. fi

  6728. if enabled ppc; then

  6729.     echo "AltiVec enabled           ${altivec-no}"

  6730.     echo "VSX enabled               ${vsx-no}"

  6731.     echo "POWER8 enabled            ${power8-no}"

  6732.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6733.     echo "dcbzl available           ${dcbzl-no}"

  6734. fi

  6735. echo "debug symbols             ${debug-no}"

  6736. echo "strip symbols             ${stripping-no}"

  6737. echo "optimize for size         ${small-no}"

  6738. echo "optimizations             ${optimizations-no}"

  6739. echo "static                    ${static-no}"

  6740. echo "shared                    ${shared-no}"

  6741. echo "postprocessing support    ${postproc-no}"

  6742. echo "network support           ${network-no}"

  6743. echo "threading support         ${thread_type-no}"

  6744. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6745. echo "texi2html enabled         ${texi2html-no}"

  6746. echo "perl enabled              ${perl-no}"

  6747. echo "pod2man enabled           ${pod2man-no}"

  6748. echo "makeinfo enabled          ${makeinfo-no}"

  6749. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6750. test -n "$random_seed" &&

  6751.     echo "random seed               ${random_seed}"

  6752. echo

  6753. 

  6754. echo "External libraries:"

  6755. print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6756. echo

  6757. 

  6758. echo "External libraries providing hardware acceleration:"

  6759. print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns

  6760. echo

  6761. 

  6762. echo "Libraries:"

  6763. print_enabled '' $LIBRARY_LIST | print_in_columns

  6764. echo

  6765. 

  6766. echo "Programs:"

  6767. print_enabled '' $PROGRAM_LIST | print_in_columns

  6768. echo

  6769. 

  6770. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6771.     echo "Enabled ${type}s:"

  6772.     eval list=\$$(toupper $type)_LIST

  6773.     print_enabled '_*' $list | print_in_columns

  6774.     echo

  6775. done

  6776. 

  6777. if test -n "$ignore_tests"; then

  6778.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6779.     echo "Ignored FATE tests:"

  6780.     echo $ignore_tests | print_in_columns

  6781.     echo

  6782. fi

  6783. 

  6784. echo "License: $license"

  6785. 

  6786. fi # test "$quiet" != "yes"

  6787. 

  6788. if test -n "$WARNINGS"; then

  6789.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6790.     enabled fatal_warnings && exit 1

  6791. fi

  6792. 

  6793. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6794. 

  6795. esc(){

  6796.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  6797. }

  6798. 

  6799. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  6800. 

  6801. enabled stripping || strip="echo skipping strip"

  6802. enabled stripping || striptype=""

  6803. 

  6804. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6805. 

  6806. cat > ffbuild/config.mak <<EOF

  6807. # Automatically generated by configure - do not modify!

  6808. ifndef FFMPEG_CONFIG_MAK

  6809. FFMPEG_CONFIG_MAK=1

  6810. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6811. prefix=$prefix

  6812. LIBDIR=\$(DESTDIR)$libdir

  6813. SHLIBDIR=\$(DESTDIR)$shlibdir

  6814. INCDIR=\$(DESTDIR)$incdir

  6815. BINDIR=\$(DESTDIR)$bindir

  6816. DATADIR=\$(DESTDIR)$datadir

  6817. DOCDIR=\$(DESTDIR)$docdir

  6818. MANDIR=\$(DESTDIR)$mandir

  6819. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6820. INSTALL_NAME_DIR=$install_name_dir

  6821. SRC_PATH=$source_path

  6822. SRC_LINK=$source_link

  6823. ifndef MAIN_MAKEFILE

  6824. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6825. endif

  6826. CC_IDENT=$cc_ident

  6827. ARCH=$arch

  6828. INTRINSICS=$intrinsics

  6829. EXTERN_PREFIX=$extern_prefix

  6830. CC=$cc

  6831. CXX=$cxx

  6832. AS=$as

  6833. OBJCC=$objcc

  6834. LD=$ld

  6835. DEPCC=$dep_cc

  6836. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6837. DEPAS=$as

  6838. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6839. X86ASM=$x86asmexe

  6840. DEPX86ASM=$x86asmexe

  6841. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6842. AR=$ar

  6843. ARFLAGS=$arflags

  6844. AR_O=$ar_o

  6845. AR_CMD=$ar

  6846. NM_CMD=$nm

  6847. RANLIB=$ranlib

  6848. STRIP=$strip

  6849. STRIPTYPE=$striptype

  6850. NVCC=$nvcc

  6851. CP=cp -p

  6852. LN_S=$ln_s

  6853. CPPFLAGS=$CPPFLAGS

  6854. CFLAGS=$CFLAGS

  6855. CXXFLAGS=$CXXFLAGS

  6856. OBJCFLAGS=$OBJCFLAGS

  6857. ASFLAGS=$ASFLAGS

  6858. NVCCFLAGS=$nvccflags

  6859. AS_C=$AS_C

  6860. AS_O=$AS_O

  6861. OBJCC_C=$OBJCC_C

  6862. OBJCC_E=$OBJCC_E

  6863. OBJCC_O=$OBJCC_O

  6864. CC_C=$CC_C

  6865. CC_E=$CC_E

  6866. CC_O=$CC_O

  6867. CXX_C=$CXX_C

  6868. CXX_O=$CXX_O

  6869. NVCC_C=$NVCC_C

  6870. NVCC_O=$NVCC_O

  6871. LD_O=$LD_O

  6872. X86ASM_O=$X86ASM_O

  6873. LD_LIB=$LD_LIB

  6874. LD_PATH=$LD_PATH

  6875. WINDRES=$windres

  6876. DEPWINDRES=$dep_cc

  6877. DOXYGEN=$doxygen

  6878. LDFLAGS=$LDFLAGS

  6879. LDEXEFLAGS=$LDEXEFLAGS

  6880. LDSOFLAGS=$LDSOFLAGS

  6881. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6882. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6883. X86ASMFLAGS=$X86ASMFLAGS

  6884. BUILDSUF=$build_suffix

  6885. PROGSSUF=$progs_suffix

  6886. FULLNAME=$FULLNAME

  6887. LIBPREF=$LIBPREF

  6888. LIBSUF=$LIBSUF

  6889. LIBNAME=$LIBNAME

  6890. SLIBPREF=$SLIBPREF

  6891. SLIBSUF=$SLIBSUF

  6892. EXESUF=$EXESUF

  6893. EXTRA_VERSION=$extra_version

  6894. CCDEP=$CCDEP

  6895. CXXDEP=$CXXDEP

  6896. CCDEP_FLAGS=$CCDEP_FLAGS

  6897. ASDEP=$ASDEP

  6898. ASDEP_FLAGS=$ASDEP_FLAGS

  6899. X86ASMDEP=$X86ASMDEP

  6900. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6901. CC_DEPFLAGS=$CC_DEPFLAGS

  6902. AS_DEPFLAGS=$AS_DEPFLAGS

  6903. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6904. HOSTCC=$host_cc

  6905. HOSTLD=$host_ld

  6906. HOSTCFLAGS=$host_cflags

  6907. HOSTCPPFLAGS=$host_cppflags

  6908. HOSTEXESUF=$HOSTEXESUF

  6909. HOSTLDFLAGS=$host_ldflags

  6910. HOSTEXTRALIBS=$host_extralibs

  6911. DEPHOSTCC=$host_cc

  6912. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6913. HOSTCCDEP=$HOSTCCDEP

  6914. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6915. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6916. HOSTCC_C=$HOSTCC_C

  6917. HOSTCC_O=$HOSTCC_O

  6918. HOSTLD_O=$HOSTLD_O

  6919. TARGET_EXEC=$target_exec $target_exec_args

  6920. TARGET_PATH=$target_path

  6921. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6922. CFLAGS-ffplay=${sdl2_cflags}

  6923. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6924. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6925. EXTRALIBS=$extralibs

  6926. COMPAT_OBJS=$compat_objs

  6927. INSTALL=$install

  6928. SLIBNAME=${SLIBNAME}

  6929. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6930. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6931. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6932. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6933. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6934. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6935. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6936. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6937. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6938. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6939. NOREDZONE_FLAGS=$noredzone_flags

  6940. LIBFUZZER_PATH=$libfuzzer_path

  6941. IGNORE_TESTS=$ignore_tests

  6942. EOF

  6943. 

  6944. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6945. 

  6946. for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do

  6947.     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak

  6948. done

  6949. 

  6950. cat > $TMPH <<EOF

  6951. /* Automatically generated by configure - do not modify! */

  6952. #ifndef FFMPEG_CONFIG_H

  6953. #define FFMPEG_CONFIG_H

  6954. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6955. #define FFMPEG_LICENSE "$(c_escape $license)"

  6956. #define CONFIG_THIS_YEAR 2017

  6957. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6958. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6959. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6960. #define av_restrict $_restrict

  6961. #define EXTERN_PREFIX "${extern_prefix}"

  6962. #define EXTERN_ASM ${extern_prefix}

  6963. #define BUILDSUF "$build_suffix"

  6964. #define SLIBSUF "$SLIBSUF"

  6965. #define HAVE_MMX2 HAVE_MMXEXT

  6966. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6967. EOF

  6968. 

  6969. test -n "$assert_level" &&

  6970.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6971. 

  6972. test -n "$malloc_prefix" &&

  6973.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6974. 

  6975. if enabled x86asm; then

  6976.     append config_files $TMPASM

  6977.     cat > $TMPASM <<EOF

  6978. ; Automatically generated by configure - do not modify!

  6979. EOF

  6980. fi

  6981. 

  6982. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6983. 

  6984. 

  6985. mkdir -p doc

  6986. mkdir -p tests

  6987. mkdir -p tests/api

  6988. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6989. 

  6990. print_config ARCH_   "$config_files" $ARCH_LIST

  6991. print_config HAVE_   "$config_files" $HAVE_LIST

  6992. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6993.                                      $CONFIG_EXTRA      \

  6994.                                      $ALL_COMPONENTS    \

  6995. 

  6996. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6997. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6998. 

  6999. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  7000. cp_if_changed $TMPH config.h

  7001. touch ffbuild/.config

  7002. 

  7003. enabled x86asm && cp_if_changed $TMPASM config.asm

  7004. 

  7005. cat > $TMPH <<EOF

  7006. /* Generated by ffmpeg configure */

  7007. #ifndef AVUTIL_AVCONFIG_H

  7008. #define AVUTIL_AVCONFIG_H

  7009. EOF

  7010. 

  7011. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  7012. 

  7013. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  7014. 

  7015. cp_if_changed $TMPH libavutil/avconfig.h

  7016. 

  7017. # generate the lists of enabled components

  7018. print_enabled_components(){

  7019.     file=$1

  7020.     struct_name=$2

  7021.     name=$3

  7022.     shift 3

  7023.     echo "static const $struct_name * const $name[] = {" > $TMPH

  7024.     for c in $*; do

  7025.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  7026.     done

  7027.     echo "    NULL };" >> $TMPH

  7028.     cp_if_changed $TMPH $file

  7029. }

  7030. 

  7031. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  7032. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  7033. 

  7034. # Settings for pkg-config files

  7035. 

  7036. cat > $TMPH <<EOF

  7037. # Automatically generated by configure - do not modify!

  7038. shared=$shared

  7039. build_suffix=$build_suffix

  7040. prefix=$prefix

  7041. libdir=$libdir

  7042. incdir=$incdir

  7043. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7044. source_path=${source_path}

  7045. LIBPREF=${LIBPREF}

  7046. LIBSUF=${LIBSUF}

  7047. extralibs_avutil="$avutil_extralibs"

  7048. extralibs_avcodec="$avcodec_extralibs"

  7049. extralibs_avformat="$avformat_extralibs"

  7050. extralibs_avdevice="$avdevice_extralibs"

  7051. extralibs_avfilter="$avfilter_extralibs"

  7052. extralibs_avresample="$avresample_extralibs"

  7053. extralibs_postproc="$postproc_extralibs"

  7054. extralibs_swscale="$swscale_extralibs"

  7055. extralibs_swresample="$swresample_extralibs"

  7056. EOF

  7057. 

  7058. for lib in $LIBRARY_LIST; do

  7059.     lib_deps="$(eval echo \$${lib}_deps)"

  7060.     echo ${lib}_deps=\"$lib_deps\" >> $TMPH

  7061. done

  7062. 

  7063. cp_if_changed $TMPH ffbuild/config.sh