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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

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

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

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

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

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

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  93.                            not part of the dynamic linker search path

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

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

  96. 

  97. Licensing options:

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

  99.                            and binaries will be under GPL [no]

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

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

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

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

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

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

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

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

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

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

  112. 

  113. Program options:

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

  115.   --disable-ffmpeg         disable ffmpeg build

  116.   --disable-ffplay         disable ffplay build

  117.   --disable-ffprobe        disable ffprobe build

  118.   --disable-ffserver       disable ffserver build

  119. 

  120. Documentation options:

  121.   --disable-doc            do not build documentation

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

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

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

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

  126. 

  127. Component options:

  128.   --disable-avdevice       disable libavdevice build

  129.   --disable-avcodec        disable libavcodec build

  130.   --disable-avformat       disable libavformat build

  131.   --disable-swresample     disable libswresample build

  132.   --disable-swscale        disable libswscale build

  133.   --disable-postproc       disable libpostproc build

  134.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  140.   --disable-dct            disable DCT code

  141.   --disable-dwt            disable DWT code

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

  143.   --disable-lsp            disable LSP code

  144.   --disable-lzo            disable LZO decoder code

  145.   --disable-mdct           disable MDCT code

  146.   --disable-rdft           disable RDFT code

  147.   --disable-fft            disable FFT code

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

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

  150. 

  151. Individual component options:

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

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

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

  155.   --disable-encoders       disable all encoders

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

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

  158.   --disable-decoders       disable all decoders

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

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

  161.   --disable-hwaccels       disable all hwaccels

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

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

  164.   --disable-muxers         disable all muxers

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

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

  167.   --disable-demuxers       disable all demuxers

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

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

  170.   --disable-parsers        disable all parsers

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

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

  173.   --disable-bsfs           disable all bitstream filters

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

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

  176.   --disable-protocols      disable all protocols

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

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

  179.   --disable-indevs         disable input devices

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

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

  182.   --disable-outdevs        disable output devices

  183.   --disable-devices        disable all devices

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

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

  186.   --disable-filters        disable all filters

  187. 

  188. External library support:

  189. 

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

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

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

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

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

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

  196. 

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

  198.   libraries must be explicitly enabled.

  199. 

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

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

  202. 

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

  204.   --disable-bzlib          disable bzlib [autodetect]

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

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

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

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

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

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

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

  212.                            if openssl is not used [no]

  213.   --disable-iconv          disable iconv [autodetect]

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

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

  216.   --enable-libass          enable libass subtitles rendering,

  217.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  224.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  262.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  278.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

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

  284.   --enable-opencl          enable OpenCL code

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

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

  287.                            if gnutls is not used [no]

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

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

  290.   --disable-sdl2           disable sdl2 [autodetect]

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

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

  293.   --disable-xlib           disable xlib [autodetect]

  294.   --disable-zlib           disable zlib [autodetect]

  295. 

  296.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

  310.   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]

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

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

  313. 

  314. Toolchain options:

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

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

  317.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  358.   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]

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

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

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

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

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

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

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

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

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

  368. 

  369. Advanced options (experts only):

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

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

  372.   --disable-symver         disable symbol versioning

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

  374.   --disable-safe-bitstream-reader

  375.                            disable buffer boundary checking in bitreaders

  376.                            (faster, but may crash)

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

  378. 

  379. Optimization options (experts only):

  380.   --disable-asm            disable all assembly optimizations

  381.   --disable-altivec        disable AltiVec optimizations

  382.   --disable-vsx            disable VSX optimizations

  383.   --disable-power8         disable POWER8 optimizations

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

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

  386.   --disable-mmx            disable MMX optimizations

  387.   --disable-mmxext         disable MMXEXT optimizations

  388.   --disable-sse            disable SSE optimizations

  389.   --disable-sse2           disable SSE2 optimizations

  390.   --disable-sse3           disable SSE3 optimizations

  391.   --disable-ssse3          disable SSSE3 optimizations

  392.   --disable-sse4           disable SSE4 optimizations

  393.   --disable-sse42          disable SSE4.2 optimizations

  394.   --disable-avx            disable AVX optimizations

  395.   --disable-xop            disable XOP optimizations

  396.   --disable-fma3           disable FMA3 optimizations

  397.   --disable-fma4           disable FMA4 optimizations

  398.   --disable-avx2           disable AVX2 optimizations

  399.   --disable-aesni          disable AESNI optimizations

  400.   --disable-armv5te        disable armv5te optimizations

  401.   --disable-armv6          disable armv6 optimizations

  402.   --disable-armv6t2        disable armv6t2 optimizations

  403.   --disable-vfp            disable VFP optimizations

  404.   --disable-neon           disable NEON optimizations

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

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

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

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

  409.   --disable-msa            disable MSA optimizations

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

  411.   --disable-mmi            disable Loongson SIMD optimizations

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

  413. 

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

  415.   --disable-debug          disable debugging symbols

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

  417.   --disable-optimizations  disable compiler optimizations

  418.   --enable-extra-warnings  enable more compiler warnings

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

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

  421.                            2 causes a slowdown at runtime.

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

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

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

  425.                            Cannot be combined with --target-exec

  426.   --enable-ftrapv          Trap arithmetic overflows

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

  428.                            \$FATE_SAMPLES at make invocation time.

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

  430.                            used only for debugging purposes)

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

  432.                            should be used only for debugging purposes)

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

  434.   --disable-random

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

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

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

  438.                            (group) and PROB the probability associated with

  439.                            NAME (default 0.5).

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

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

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

  443.   --enable-osfuzz          Enable building fuzzer tool

  444.   --libfuzzer=PATH         path to libfuzzer

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

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

  447. 

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

  449. EOF

  450.   exit 0

  451. }

  452. 

  453. quotes='""'

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

  455.     ncolors=$(tput colors)

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

  457.         bold_color=$(tput bold)

  458.         warn_color=$(tput setaf 3)

  459.         error_color=$(tput setaf 1)

  460.         reset_color=$(tput sgr0)

  461.     fi

  462.     # 72 used instead of 80 since that's the default of pr

  463.     ncols=$(tput cols)

  464. fi

  465. : ${ncols:=72}

  466. 

  467. log(){

  468.     echo "$@" >> $logfile

  469. }

  470. 

  471. log_file(){

  472.     log BEGIN $1

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

  474.     log END $1

  475. }

  476. 

  477. warn(){

  478.     log "WARNING: $*"

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

  480. }

  481. 

  482. die(){

  483.     log "$@"

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

  485.     cat <<EOF

  486. 

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

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

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

  490. EOF

  491.     if disabled logging; then

  492.         cat <<EOF

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

  494. include the log this produces with your report.

  495. EOF

  496.     else

  497.         cat <<EOF

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

  499. solve the problem.

  500. EOF

  501.     fi

  502.     exit 1

  503. }

  504. 

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

  506. toupper(){

  507.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  508. }

  509. 

  510. tolower(){

  511.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  512. }

  513. 

  514. c_escape(){

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

  516. }

  517. 

  518. sh_quote(){

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

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

  521.     echo "$v"

  522. }

  523. 

  524. cleanws(){

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

  526. }

  527. 

  528. filter(){

  529.     pat=$1

  530.     shift

  531.     for v; do

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

  533.     done

  534. }

  535. 

  536. filter_out(){

  537.     pat=$1

  538.     shift

  539.     for v; do

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

  541.     done

  542. }

  543. 

  544. map(){

  545.     m=$1

  546.     shift

  547.     for v; do eval $m; done

  548. }

  549. 

  550. add_suffix(){

  551.     suffix=$1

  552.     shift

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

  554. }

  555. 

  556. set_all(){

  557.     value=$1

  558.     shift

  559.     for var in $*; do

  560.         eval $var=$value

  561.     done

  562. }

  563. 

  564. set_weak(){

  565.     value=$1

  566.     shift

  567.     for var; do

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

  569.     done

  570. }

  571. 

  572. sanitize_var_name(){

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

  574. }

  575. 

  576. set_safe(){

  577.     var=$1

  578.     shift

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

  580. }

  581. 

  582. get_safe(){

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

  584. }

  585. 

  586. pushvar(){

  587.     for pvar in $*; do

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

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

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

  591.     done

  592. }

  593. 

  594. popvar(){

  595.     for pvar in $*; do

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

  597.         test $level = 0 && continue

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

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

  600.         eval ${pvar}_level=$level

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

  602.     done

  603. }

  604. 

  605. request(){

  606.     for var in $*; do

  607.         eval ${var}_requested=yes

  608.         eval $var=

  609.     done

  610. }

  611. 

  612. enable(){

  613.     set_all yes $*

  614. }

  615. 

  616. disable(){

  617.     set_all no $*

  618. }

  619. 

  620. enable_weak(){

  621.     set_weak yes $*

  622. }

  623. 

  624. disable_weak(){

  625.     set_weak no $*

  626. }

  627. 

  628. enable_safe(){

  629.     for var; do

  630.         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')

  631.     done

  632. }

  633. 

  634. disable_safe(){

  635.     for var; do

  636.         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')

  637.     done

  638. }

  639. 

  640. do_enable_deep(){

  641.     for var; do

  642.         enabled $var && continue

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

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

  645.         pushvar var sgs

  646.         enable_deep $sel

  647.         popvar sgs

  648.         enable_deep_weak $sgs

  649.         popvar var

  650.     done

  651. }

  652. 

  653. enable_deep(){

  654.     do_enable_deep $*

  655.     enable $*

  656. }

  657. 

  658. enable_deep_weak(){

  659.     for var; do

  660.         disabled $var && continue

  661.         pushvar var

  662.         do_enable_deep $var

  663.         popvar var

  664.         enable_weak $var

  665.     done

  666. }

  667. 

  668. requested(){

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

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

  671. }

  672. 

  673. enabled(){

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

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

  676. }

  677. 

  678. disabled(){

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

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

  681. }

  682. 

  683. enabled_all(){

  684.     for opt; do

  685.         enabled $opt || return 1

  686.     done

  687. }

  688. 

  689. disabled_all(){

  690.     for opt; do

  691.         disabled $opt || return 1

  692.     done

  693. }

  694. 

  695. enabled_any(){

  696.     for opt; do

  697.         enabled $opt && return 0

  698.     done

  699. }

  700. 

  701. disabled_any(){

  702.     for opt; do

  703.         disabled $opt && return 0

  704.     done

  705.     return 1

  706. }

  707. 

  708. set_default(){

  709.     for opt; do

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

  711.     done

  712. }

  713. 

  714. is_in(){

  715.     value=$1

  716.     shift

  717.     for var in $*; do

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

  719.     done

  720.     return 1

  721. }

  722. 

  723. do_check_deps(){

  724.     for cfg; do

  725.         cfg="${cfg#!}"

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

  727.         disabled ${cfg}_checking && continue

  728.         enable ${cfg}_checking

  729.         append allopts $cfg

  730. 

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

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

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

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

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

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

  737. 

  738.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  739.         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn

  740.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  741. 

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

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

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

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

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

  747. 

  748.         if enabled $cfg; then

  749.             enable_deep $dep_sel

  750.             enable_deep_weak $dep_sgs

  751.         fi

  752. 

  753.         disable ${cfg}_checking

  754.     done

  755. }

  756. 

  757. check_deps(){

  758.     unset allopts

  759. 

  760.     do_check_deps "$@"

  761. 

  762.     for cfg in $allopts; do

  763.         enabled $cfg || continue

  764.         eval dep_extralibs="\$${cfg}_extralibs"

  765.         test -n "$dep_extralibs" && add_extralibs $dep_extralibs

  766.     done

  767. }

  768. 

  769. print_config(){

  770.     pfx=$1

  771.     files=$2

  772.     shift 2

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

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

  775.         {

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

  777.             v = \$2;

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

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

  780.             for (f in files) {

  781.                 file = files[f];

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

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

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

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

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

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

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

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

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

  791.                     yesno = \$2;

  792.                     c2 = tolower(c);

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

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

  795.                 }

  796.             }

  797.         }"

  798. }

  799. 

  800. print_enabled(){

  801.     suf=$1

  802.     shift

  803.     for v; do

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

  805.     done

  806. }

  807. 

  808. append(){

  809.     var=$1

  810.     shift

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

  812. }

  813. 

  814. prepend(){

  815.     var=$1

  816.     shift

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

  818. }

  819. 

  820. unique(){

  821.     var=$1

  822.     uniq_list=""

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

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

  825.     done

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

  827. }

  828. 

  829. add_cppflags(){

  830.     append CPPFLAGS "$@"

  831. }

  832. 

  833. add_cflags(){

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

  835. }

  836. 

  837. add_cflags_headers(){

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

  839. }

  840. 

  841. add_cxxflags(){

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

  843. }

  844. 

  845. add_asflags(){

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

  847. }

  848. 

  849. add_objcflags(){

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

  851. }

  852. 

  853. add_ldflags(){

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

  855. }

  856. 

  857. add_ldexeflags(){

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

  859. }

  860. 

  861. add_ldlibflags(){

  862.     append LDLIBFLAGS $($ldflags_filter "$@")

  863. }

  864. 

  865. add_stripflags(){

  866.     append ASMSTRIPFLAGS "$@"

  867. }

  868. 

  869. add_extralibs(){

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

  871. }

  872. 

  873. add_host_cppflags(){

  874.     append host_cppflags "$@"

  875. }

  876. 

  877. add_host_cflags(){

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

  879. }

  880. 

  881. add_host_ldflags(){

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

  883. }

  884. 

  885. add_compat(){

  886.     append compat_objs $1

  887.     shift

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

  889. }

  890. 

  891. check_cmd(){

  892.     log "$@"

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

  894. }

  895. 

  896. check_stat(){

  897.     log check_stat "$@"

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

  899. }

  900. 

  901. cc_o(){

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

  903. }

  904. 

  905. cc_e(){

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

  907. }

  908. 

  909. check_cc(){

  910.     log check_cc "$@"

  911.     cat > $TMPC

  912.     log_file $TMPC

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

  914. }

  915. 

  916. check_cxx(){

  917.     log check_cxx "$@"

  918.     cat > $TMPCPP

  919.     log_file $TMPCPP

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

  921. }

  922. 

  923. check_objcc(){

  924.     log check_objcc "$@"

  925.     cat > $TMPM

  926.     log_file $TMPM

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

  928. }

  929. 

  930. check_cpp(){

  931.     log check_cpp "$@"

  932.     cat > $TMPC

  933.     log_file $TMPC

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

  935. }

  936. 

  937. as_o(){

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

  939. }

  940. 

  941. check_as(){

  942.     log check_as "$@"

  943.     cat > $TMPS

  944.     log_file $TMPS

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

  946. }

  947. 

  948. check_inline_asm(){

  949.     log check_inline_asm "$@"

  950.     name="$1"

  951.     code="$2"

  952.     shift 2

  953.     disable $name

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

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

  956. EOF

  957. }

  958. 

  959. check_inline_asm_flags(){

  960.     log check_inline_asm_flags "$@"

  961.     name="$1"

  962.     code="$2"

  963.     flags=''

  964.     shift 2

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

  966.       append flags $1

  967.       shift

  968.     done;

  969.     disable $name

  970.     cat > $TMPC <<EOF

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

  972. EOF

  973.     log_file $TMPC

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

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

  976. }

  977. 

  978. check_insn(){

  979.     log check_insn "$@"

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

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

  982. }

  983. 

  984. check_x86asm(){

  985.     log check_x86asm "$@"

  986.     echo "$1" > $TMPS

  987.     log_file $TMPS

  988.     shift 1

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

  990. }

  991. 

  992. ld_o(){

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

  994. }

  995. 

  996. check_ld(){

  997.     log check_ld "$@"

  998.     type=$1

  999.     shift 1

  1000.     flags=$(filter_out '-l*|*.so' $@)

  1001.     libs=$(filter '-l*|*.so' $@)

  1002.     check_$type $($cflags_filter $flags) || return

  1003.     flags=$($ldflags_filter $flags)

  1004.     libs=$($ldflags_filter $libs)

  1005.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1006. }

  1007. 

  1008. print_include(){

  1009.     hdr=$1

  1010.     test "${hdr%.h}" = "${hdr}" &&

  1011.         echo "#include $hdr"    ||

  1012.         echo "#include <$hdr>"

  1013. }

  1014. 

  1015. check_code(){

  1016.     log check_code "$@"

  1017.     check=$1

  1018.     headers=$2

  1019.     code=$3

  1020.     shift 3

  1021.     {

  1022.         for hdr in $headers; do

  1023.             print_include $hdr

  1024.         done

  1025.         echo "int main(void) { $code; return 0; }"

  1026.     } | check_$check "$@"

  1027. }

  1028. 

  1029. check_cppflags(){

  1030.     log check_cppflags "$@"

  1031.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1032. int x;

  1033. EOF

  1034. }

  1035. 

  1036. test_cflags(){

  1037.     log test_cflags "$@"

  1038.     set -- $($cflags_filter "$@")

  1039.     check_cc "$@" <<EOF

  1040. int x;

  1041. EOF

  1042. }

  1043. 

  1044. check_cflags(){

  1045.     log check_cflags "$@"

  1046.     test_cflags "$@" && add_cflags "$@"

  1047. }

  1048. 

  1049. check_cxxflags(){

  1050.     log check_cxxflags "$@"

  1051.     set -- $($cflags_filter "$@")

  1052.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1053. int x;

  1054. EOF

  1055. }

  1056. 

  1057. test_objcflags(){

  1058.     log test_objcflags "$@"

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

  1060.     check_objcc "$@" <<EOF

  1061. int x;

  1062. EOF

  1063. }

  1064. 

  1065. check_objcflags(){

  1066.     log check_objcflags "$@"

  1067.     test_objcflags "$@" && add_objcflags "$@"

  1068. }

  1069. 

  1070. test_ldflags(){

  1071.     log test_ldflags "$@"

  1072.     check_ld "cc" "$@" <<EOF

  1073. int main(void){ return 0; }

  1074. EOF

  1075. }

  1076. 

  1077. check_ldflags(){

  1078.     log check_ldflags "$@"

  1079.     test_ldflags "$@" && add_ldflags "$@"

  1080. }

  1081. 

  1082. test_stripflags(){

  1083.     log test_stripflags "$@"

  1084.     # call check_cc to get a fresh TMPO

  1085.     check_cc <<EOF

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

  1087. EOF

  1088.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1089. }

  1090. 

  1091. check_stripflags(){

  1092.     log check_stripflags "$@"

  1093.     test_stripflags "$@" && add_stripflags "$@"

  1094. }

  1095. 

  1096. check_header(){

  1097.     log check_header "$@"

  1098.     header=$1

  1099.     shift

  1100.     disable_safe $header

  1101.     check_cpp "$@" <<EOF && enable_safe $header

  1102. #include <$header>

  1103. int x;

  1104. EOF

  1105. }

  1106. 

  1107. check_header_objcc(){

  1108.     log check_header_objcc "$@"

  1109.     rm -f -- "$TMPO"

  1110.     header=$1

  1111.     shift

  1112.     disable_safe $header

  1113.     {

  1114.        echo "#include <$header>"

  1115.        echo "int main(void) { return 0; }"

  1116.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1117. }

  1118. 

  1119. check_func(){

  1120.     log check_func "$@"

  1121.     func=$1

  1122.     shift

  1123.     disable $func

  1124.     check_ld "cc" "$@" <<EOF && enable $func

  1125. extern int $func();

  1126. int main(void){ $func(); }

  1127. EOF

  1128. }

  1129. 

  1130. check_complexfunc(){

  1131.     log check_complexfunc "$@"

  1132.     func=$1

  1133.     narg=$2

  1134.     shift 2

  1135.     test $narg = 2 && args="f, g" || args="f * I"

  1136.     disable $func

  1137.     check_ld "cc" "$@" <<EOF && enable $func

  1138. #include <complex.h>

  1139. #include <math.h>

  1140. float foo(complex float f, complex float g) { return $func($args); }

  1141. int main(void){ return (int) foo; }

  1142. EOF

  1143. }

  1144. 

  1145. check_mathfunc(){

  1146.     log check_mathfunc "$@"

  1147.     func=$1

  1148.     narg=$2

  1149.     shift 2

  1150.     test $narg = 2 && args="f, g" || args="f"

  1151.     disable $func

  1152.     check_ld "cc" "$@" <<EOF && enable $func

  1153. #include <math.h>

  1154. float foo(float f, float g) { return $func($args); }

  1155. int main(void){ return (int) foo; }

  1156. EOF

  1157. }

  1158. 

  1159. check_func_headers(){

  1160.     log check_func_headers "$@"

  1161.     headers=$1

  1162.     funcs=$2

  1163.     shift 2

  1164.     {

  1165.         for hdr in $headers; do

  1166.             print_include $hdr

  1167.         done

  1168.         echo "#include <stdint.h>"

  1169.         for func in $funcs; do

  1170.             echo "long check_$func(void) { return (long) $func; }"

  1171.         done

  1172.         echo "int main(void) { int ret = 0;"

  1173.         # LTO could optimize out the test functions without this

  1174.         for func in $funcs; do

  1175.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1176.         done

  1177.         echo "return ret; }"

  1178.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1179. }

  1180. 

  1181. check_class_headers_cpp(){

  1182.     log check_class_headers_cpp "$@"

  1183.     headers=$1

  1184.     classes=$2

  1185.     shift 2

  1186.     {

  1187.         for hdr in $headers; do

  1188.             echo "#include <$hdr>"

  1189.         done

  1190.         echo "int main(void) { "

  1191.         i=1

  1192.         for class in $classes; do

  1193.             echo "$class obj$i;"

  1194.             i=$(expr $i + 1)

  1195.         done

  1196.         echo "return 0; }"

  1197.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1198. }

  1199. 

  1200. check_cpp_condition(){

  1201.     log check_cpp_condition "$@"

  1202.     header=$1

  1203.     condition=$2

  1204.     shift 2

  1205.     check_cpp "$@" <<EOF

  1206. #include <$header>

  1207. #if !($condition)

  1208. #error "unsatisfied condition: $condition"

  1209. #endif

  1210. EOF

  1211. }

  1212. 

  1213. test_cflags_cc(){

  1214.     log test_cflags_cc "$@"

  1215.     flags=$1

  1216.     header=$2

  1217.     condition=$3

  1218.     shift 3

  1219.     set -- $($cflags_filter "$flags")

  1220.     check_cc "$@" <<EOF

  1221. #include <$header>

  1222. #if !($condition)

  1223. #error "unsatisfied condition: $condition"

  1224. #endif

  1225. EOF

  1226. }

  1227. 

  1228. check_lib(){

  1229.     log check_lib "$@"

  1230.     name="$1"

  1231.     headers="$2"

  1232.     funcs="$3"

  1233.     shift 3

  1234.     disable $name

  1235.     check_func_headers "$headers" "$funcs" "$@" &&

  1236.         enable $name && add_extralibs "$@"

  1237. }

  1238. 

  1239. check_lib_cpp(){

  1240.     log check_lib_cpp "$@"

  1241.     headers="$1"

  1242.     classes="$2"

  1243.     shift 2

  1244.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1245. }

  1246. 

  1247. check_pkg_config(){

  1248.     log check_pkg_config "$@"

  1249.     pkg_version="$1"

  1250.     pkg="${1%% *}"

  1251.     headers="$2"

  1252.     funcs="$3"

  1253.     shift 3

  1254.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1255.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1256.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1257.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1258.         set_safe "${pkg}_cflags"    $pkg_cflags &&

  1259.         set_safe "${pkg}_extralibs" $pkg_libs

  1260. }

  1261. 

  1262. check_exec(){

  1263.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1264. }

  1265. 

  1266. check_exec_crash(){

  1267.     log check_exec_crash "$@"

  1268.     code=$(cat)

  1269. 

  1270.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1271.     # are safe but may not be available everywhere.  Thus we use

  1272.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1273.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1274.     # is not defined by standard C so it is used conditionally.

  1275. 

  1276.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1277. #include <signal.h>

  1278. static void sighandler(int sig){

  1279.     raise(SIGTERM);

  1280. }

  1281. int foo(void){

  1282.     $code

  1283. }

  1284. int (*func_ptr)(void) = foo;

  1285. int main(void){

  1286.     signal(SIGILL, sighandler);

  1287.     signal(SIGFPE, sighandler);

  1288.     signal(SIGSEGV, sighandler);

  1289. #ifdef SIGBUS

  1290.     signal(SIGBUS, sighandler);

  1291. #endif

  1292.     return func_ptr();

  1293. }

  1294. EOF

  1295. }

  1296. 

  1297. check_type(){

  1298.     log check_type "$@"

  1299.     headers=$1

  1300.     type=$2

  1301.     shift 2

  1302.     disable_safe "$type"

  1303.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1304. }

  1305. 

  1306. check_struct(){

  1307.     log check_struct "$@"

  1308.     headers=$1

  1309.     struct=$2

  1310.     member=$3

  1311.     shift 3

  1312.     disable_safe "${struct}_${member}"

  1313.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1314.         enable_safe "${struct}_${member}"

  1315. }

  1316. 

  1317. check_builtin(){

  1318.     log check_builtin "$@"

  1319.     name=$1

  1320.     headers=$2

  1321.     builtin=$3

  1322.     shift 3

  1323.     disable "$name"

  1324.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1325. }

  1326. 

  1327. check_compile_assert(){

  1328.     log check_compile_assert "$@"

  1329.     name=$1

  1330.     headers=$2

  1331.     condition=$3

  1332.     shift 3

  1333.     disable "$name"

  1334.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1335. }

  1336. 

  1337. require(){

  1338.     log require "$@"

  1339.     name_version="$1"

  1340.     name="${1%% *}"

  1341.     headers="$2"

  1342.     func="$3"

  1343.     shift 3

  1344.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1345. }

  1346. 

  1347. require_cpp(){

  1348.     name="$1"

  1349.     headers="$2"

  1350.     classes="$3"

  1351.     shift 3

  1352.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1353. }

  1354. 

  1355. use_pkg_config(){

  1356.     log use_pkg_config "$@"

  1357.     pkg="$1"

  1358.     check_pkg_config "$@" || return 1

  1359.     add_cflags    $(get_safe "${pkg}_cflags")

  1360.     add_extralibs $(get_safe "${pkg}_extralibs")

  1361. }

  1362. 

  1363. require_pkg_config(){

  1364.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1365. }

  1366. 

  1367. hostcc_e(){

  1368.     eval printf '%s\\n' $HOSTCC_E

  1369. }

  1370. 

  1371. hostcc_o(){

  1372.     eval printf '%s\\n' $HOSTCC_O

  1373. }

  1374. 

  1375. check_host_cc(){

  1376.     log check_host_cc "$@"

  1377.     cat > $TMPC

  1378.     log_file $TMPC

  1379.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1380. }

  1381. 

  1382. check_host_cpp(){

  1383.     log check_host_cpp "$@"

  1384.     cat > $TMPC

  1385.     log_file $TMPC

  1386.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1387. }

  1388. 

  1389. check_host_cppflags(){

  1390.     log check_host_cppflags "$@"

  1391.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1392. int x;

  1393. EOF

  1394. }

  1395. 

  1396. check_host_cflags(){

  1397.     log check_host_cflags "$@"

  1398.     set -- $($host_cflags_filter "$@")

  1399.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1400. int x;

  1401. EOF

  1402. }

  1403. 

  1404. check_host_cpp_condition(){

  1405.     log check_host_cpp_condition "$@"

  1406.     header=$1

  1407.     condition=$2

  1408.     shift 2

  1409.     check_host_cpp "$@" <<EOF

  1410. #include <$header>

  1411. #if !($condition)

  1412. #error "unsatisfied condition: $condition"

  1413. #endif

  1414. EOF

  1415. }

  1416. 

  1417. cp_if_changed(){

  1418.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1419.     mkdir -p "$(dirname $2)"

  1420.     cp -f "$1" "$2"

  1421. }

  1422. 

  1423. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1424. # system-dependent things.

  1425. 

  1426. AVCODEC_COMPONENTS="

  1427.     bsfs

  1428.     decoders

  1429.     encoders

  1430.     hwaccels

  1431.     parsers

  1432. "

  1433. 

  1434. AVDEVICE_COMPONENTS="

  1435.     indevs

  1436.     outdevs

  1437. "

  1438. AVFILTER_COMPONENTS="

  1439.     filters

  1440. "

  1441. AVFORMAT_COMPONENTS="

  1442.     demuxers

  1443.     muxers

  1444.     protocols

  1445. "

  1446. 

  1447. AVRESAMPLE_COMPONENTS=""

  1448. AVUTIL_COMPONENTS=""

  1449. 

  1450. COMPONENT_LIST="

  1451.     $AVCODEC_COMPONENTS

  1452.     $AVDEVICE_COMPONENTS

  1453.     $AVFILTER_COMPONENTS

  1454.     $AVFORMAT_COMPONENTS

  1455.     $AVRESAMPLE_COMPONENTS

  1456.     $AVUTIL_COMPONENTS

  1457. "

  1458. 

  1459. EXAMPLE_LIST="

  1460.     avio_dir_cmd_example

  1461.     avio_reading_example

  1462.     decode_audio_example

  1463.     decode_video_example

  1464.     demuxing_decoding_example

  1465.     encode_audio_example

  1466.     encode_video_example

  1467.     extract_mvs_example

  1468.     filter_audio_example

  1469.     filtering_audio_example

  1470.     filtering_video_example

  1471.     http_multiclient_example

  1472.     hw_decode_example

  1473.     metadata_example

  1474.     muxing_example

  1475.     qsvdec_example

  1476.     remuxing_example

  1477.     resampling_audio_example

  1478.     scaling_video_example

  1479.     transcode_aac_example

  1480.     transcoding_example

  1481. "

  1482. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1483.     bzlib

  1484.     iconv

  1485.     libxcb

  1486.     libxcb_shm

  1487.     libxcb_shape

  1488.     libxcb_xfixes

  1489.     lzma

  1490.     schannel

  1491.     sdl

  1492.     sdl2

  1493.     securetransport

  1494.     xlib

  1495.     zlib

  1496. "

  1497. 

  1498. EXTERNAL_LIBRARY_GPL_LIST="

  1499.     avisynth

  1500.     frei0r

  1501.     libcdio

  1502.     librubberband

  1503.     libvidstab

  1504.     libx264

  1505.     libx265

  1506.     libxavs

  1507.     libxvid

  1508. "

  1509. 

  1510. EXTERNAL_LIBRARY_NONFREE_LIST="

  1511.     decklink

  1512.     libndi_newtek

  1513.     libfdk_aac

  1514.     openssl

  1515. "

  1516. 

  1517. EXTERNAL_LIBRARY_VERSION3_LIST="

  1518.     gmp

  1519.     libopencore_amrnb

  1520.     libopencore_amrwb

  1521.     libvo_amrwbenc

  1522. "

  1523. 

  1524. EXTERNAL_LIBRARY_GPLV3_LIST="

  1525.     libsmbclient

  1526. "

  1527. 

  1528. EXTERNAL_LIBRARY_LIST="

  1529.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1530.     $EXTERNAL_LIBRARY_GPL_LIST

  1531.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1532.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1533.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1534.     chromaprint

  1535.     crystalhd

  1536.     gcrypt

  1537.     gnutls

  1538.     jni

  1539.     ladspa

  1540.     libass

  1541.     libbluray

  1542.     libbs2b

  1543.     libcaca

  1544.     libcelt

  1545.     libdc1394

  1546.     libflite

  1547.     libfontconfig

  1548.     libfreetype

  1549.     libfribidi

  1550.     libgme

  1551.     libgsm

  1552.     libiec61883

  1553.     libilbc

  1554.     libkvazaar

  1555.     libmodplug

  1556.     libmp3lame

  1557.     libmysofa

  1558.     libopencv

  1559.     libopenh264

  1560.     libopenjpeg

  1561.     libopenmpt

  1562.     libopus

  1563.     libpulse

  1564.     librsvg

  1565.     librtmp

  1566.     libshine

  1567.     libsmbclient

  1568.     libsnappy

  1569.     libsoxr

  1570.     libspeex

  1571.     libssh

  1572.     libtesseract

  1573.     libtheora

  1574.     libtwolame

  1575.     libv4l2

  1576.     libvmaf

  1577.     libvorbis

  1578.     libvpx

  1579.     libwavpack

  1580.     libwebp

  1581.     libzimg

  1582.     libzmq

  1583.     libzvbi

  1584.     mediacodec

  1585.     openal

  1586.     opencl

  1587.     opengl

  1588.     videotoolbox

  1589. "

  1590. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1591.     audiotoolbox

  1592.     cuda

  1593.     cuvid

  1594.     d3d11va

  1595.     dxva2

  1596.     nvenc

  1597.     vaapi

  1598.     vda

  1599.     vdpau

  1600.     videotoolbox_hwaccel

  1601.     xvmc

  1602. "

  1603. 

  1604. HWACCEL_LIBRARY_NONFREE_LIST="

  1605.     cuda_sdk

  1606.     libnpp

  1607. "

  1608. 

  1609. HWACCEL_LIBRARY_LIST="

  1610.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1611.     $HWACCEL_LIBRARY_NONFREE_LIST

  1612.     libmfx

  1613.     mmal

  1614.     omx

  1615. "

  1616. 

  1617. DOCUMENT_LIST="

  1618.     doc

  1619.     htmlpages

  1620.     manpages

  1621.     podpages

  1622.     txtpages

  1623. "

  1624. 

  1625. FEATURE_LIST="

  1626.     ftrapv

  1627.     gray

  1628.     hardcoded_tables

  1629.     omx_rpi

  1630.     runtime_cpudetect

  1631.     safe_bitstream_reader

  1632.     shared

  1633.     small

  1634.     static

  1635.     swscale_alpha

  1636. "

  1637. 

  1638. LIBRARY_LIST="

  1639.     avcodec

  1640.     avdevice

  1641.     avfilter

  1642.     avformat

  1643.     avresample

  1644.     avutil

  1645.     postproc

  1646.     swresample

  1647.     swscale

  1648. "

  1649. 

  1650. LICENSE_LIST="

  1651.     gpl

  1652.     nonfree

  1653.     version3

  1654. "

  1655. 

  1656. PROGRAM_LIST="

  1657.     ffplay

  1658.     ffprobe

  1659.     ffserver

  1660.     ffmpeg

  1661. "

  1662. 

  1663. SUBSYSTEM_LIST="

  1664.     dct

  1665.     dwt

  1666.     error_resilience

  1667.     faan

  1668.     fast_unaligned

  1669.     fft

  1670.     lsp

  1671.     lzo

  1672.     mdct

  1673.     pixelutils

  1674.     network

  1675.     rdft

  1676. "

  1677. 

  1678. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1679. CONFIG_LIST="

  1680.     $DOCUMENT_LIST

  1681.     $EXAMPLE_LIST

  1682.     $EXTERNAL_LIBRARY_LIST

  1683.     $HWACCEL_LIBRARY_LIST

  1684.     $FEATURE_LIST

  1685.     $LICENSE_LIST

  1686.     $LIBRARY_LIST

  1687.     $PROGRAM_LIST

  1688.     $SUBSYSTEM_LIST

  1689.     fontconfig

  1690.     memory_poisoning

  1691.     neon_clobber_test

  1692.     ossfuzz

  1693.     pic

  1694.     thumb

  1695.     valgrind_backtrace

  1696.     xmm_clobber_test

  1697.     $COMPONENT_LIST

  1698. "

  1699. 

  1700. THREADS_LIST="

  1701.     pthreads

  1702.     os2threads

  1703.     w32threads

  1704. "

  1705. 

  1706. ATOMICS_LIST="

  1707.     atomics_gcc

  1708.     atomics_suncc

  1709.     atomics_win32

  1710. "

  1711. 

  1712. AUTODETECT_LIBS="

  1713.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1714.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1715.     $THREADS_LIST

  1716. "

  1717. 

  1718. ARCH_LIST="

  1719.     aarch64

  1720.     alpha

  1721.     arm

  1722.     avr32

  1723.     avr32_ap

  1724.     avr32_uc

  1725.     bfin

  1726.     ia64

  1727.     m68k

  1728.     mips

  1729.     mips64

  1730.     parisc

  1731.     ppc

  1732.     ppc64

  1733.     s390

  1734.     sh4

  1735.     sparc

  1736.     sparc64

  1737.     tilegx

  1738.     tilepro

  1739.     tomi

  1740.     x86

  1741.     x86_32

  1742.     x86_64

  1743. "

  1744. 

  1745. ARCH_EXT_LIST_ARM="

  1746.     armv5te

  1747.     armv6

  1748.     armv6t2

  1749.     armv8

  1750.     neon

  1751.     vfp

  1752.     vfpv3

  1753.     setend

  1754. "

  1755. 

  1756. ARCH_EXT_LIST_MIPS="

  1757.     mipsfpu

  1758.     mips32r2

  1759.     mips32r5

  1760.     mips64r2

  1761.     mips32r6

  1762.     mips64r6

  1763.     mipsdsp

  1764.     mipsdspr2

  1765.     msa

  1766. "

  1767. 

  1768. ARCH_EXT_LIST_LOONGSON="

  1769.     loongson2

  1770.     loongson3

  1771.     mmi

  1772. "

  1773. 

  1774. ARCH_EXT_LIST_X86_SIMD="

  1775.     aesni

  1776.     amd3dnow

  1777.     amd3dnowext

  1778.     avx

  1779.     avx2

  1780.     fma3

  1781.     fma4

  1782.     mmx

  1783.     mmxext

  1784.     sse

  1785.     sse2

  1786.     sse3

  1787.     sse4

  1788.     sse42

  1789.     ssse3

  1790.     xop

  1791. "

  1792. 

  1793. ARCH_EXT_LIST_PPC="

  1794.     altivec

  1795.     dcbzl

  1796.     ldbrx

  1797.     power8

  1798.     ppc4xx

  1799.     vsx

  1800. "

  1801. 

  1802. ARCH_EXT_LIST_X86="

  1803.     $ARCH_EXT_LIST_X86_SIMD

  1804.     cpunop

  1805.     i686

  1806. "

  1807. 

  1808. ARCH_EXT_LIST="

  1809.     $ARCH_EXT_LIST_ARM

  1810.     $ARCH_EXT_LIST_PPC

  1811.     $ARCH_EXT_LIST_X86

  1812.     $ARCH_EXT_LIST_MIPS

  1813.     $ARCH_EXT_LIST_LOONGSON

  1814. "

  1815. 

  1816. ARCH_FEATURES="

  1817.     aligned_stack

  1818.     fast_64bit

  1819.     fast_clz

  1820.     fast_cmov

  1821.     local_aligned_8

  1822.     local_aligned_16

  1823.     local_aligned_32

  1824.     simd_align_16

  1825.     simd_align_32

  1826. "

  1827. 

  1828. BUILTIN_LIST="

  1829.     atomic_cas_ptr

  1830.     machine_rw_barrier

  1831.     MemoryBarrier

  1832.     mm_empty

  1833.     rdtsc

  1834.     sarestart

  1835.     sem_timedwait

  1836.     sync_val_compare_and_swap

  1837. "

  1838. HAVE_LIST_CMDLINE="

  1839.     inline_asm

  1840.     symver

  1841.     x86asm

  1842. "

  1843. 

  1844. HAVE_LIST_PUB="

  1845.     bigendian

  1846.     fast_unaligned

  1847. "

  1848. 

  1849. HEADERS_LIST="

  1850.     alsa_asoundlib_h

  1851.     altivec_h

  1852.     arpa_inet_h

  1853.     asm_types_h

  1854.     cdio_paranoia_h

  1855.     cdio_paranoia_paranoia_h

  1856.     cuda_h

  1857.     d3d11_h

  1858.     dispatch_dispatch_h

  1859.     dev_bktr_ioctl_bt848_h

  1860.     dev_bktr_ioctl_meteor_h

  1861.     dev_ic_bt8xx_h

  1862.     dev_video_bktr_ioctl_bt848_h

  1863.     dev_video_meteor_ioctl_meteor_h

  1864.     direct_h

  1865.     dirent_h

  1866.     dlfcn_h

  1867.     dxgidebug_h

  1868.     dxva_h

  1869.     ES2_gl_h

  1870.     gsm_h

  1871.     io_h

  1872.     mach_mach_time_h

  1873.     machine_ioctl_bt848_h

  1874.     machine_ioctl_meteor_h

  1875.     malloc_h

  1876.     opencv2_core_core_c_h

  1877.     openjpeg_2_2_openjpeg_h

  1878.     openjpeg_2_1_openjpeg_h

  1879.     openjpeg_2_0_openjpeg_h

  1880.     openjpeg_1_5_openjpeg_h

  1881.     OpenGL_gl3_h

  1882.     poll_h

  1883.     sndio_h

  1884.     soundcard_h

  1885.     stdatomic_h

  1886.     sys_mman_h

  1887.     sys_param_h

  1888.     sys_resource_h

  1889.     sys_select_h

  1890.     sys_soundcard_h

  1891.     sys_time_h

  1892.     sys_un_h

  1893.     sys_videoio_h

  1894.     termios_h

  1895.     udplite_h

  1896.     unistd_h

  1897.     valgrind_valgrind_h

  1898.     windows_h

  1899.     winsock2_h

  1900. "

  1901. 

  1902. INTRINSICS_LIST="

  1903.     intrinsics_neon

  1904. "

  1905. 

  1906. COMPLEX_FUNCS="

  1907.     cabs

  1908.     cexp

  1909. "

  1910. 

  1911. MATH_FUNCS="

  1912.     atanf

  1913.     atan2f

  1914.     cbrt

  1915.     cbrtf

  1916.     copysign

  1917.     cosf

  1918.     erf

  1919.     exp2

  1920.     exp2f

  1921.     expf

  1922.     hypot

  1923.     isfinite

  1924.     isinf

  1925.     isnan

  1926.     ldexpf

  1927.     llrint

  1928.     llrintf

  1929.     log2

  1930.     log2f

  1931.     log10f

  1932.     lrint

  1933.     lrintf

  1934.     powf

  1935.     rint

  1936.     round

  1937.     roundf

  1938.     sinf

  1939.     trunc

  1940.     truncf

  1941. "

  1942. 

  1943. SYSTEM_FUNCS="

  1944.     access

  1945.     aligned_malloc

  1946.     arc4random

  1947.     clock_gettime

  1948.     closesocket

  1949.     CommandLineToArgvW

  1950.     CoTaskMemFree

  1951.     CryptGenRandom

  1952.     dlopen

  1953.     fcntl

  1954.     flt_lim

  1955.     fork

  1956.     getaddrinfo

  1957.     gethrtime

  1958.     getopt

  1959.     GetProcessAffinityMask

  1960.     GetProcessMemoryInfo

  1961.     GetProcessTimes

  1962.     getrusage

  1963.     GetSystemTimeAsFileTime

  1964.     gettimeofday

  1965.     glob

  1966.     glXGetProcAddress

  1967.     gmtime_r

  1968.     inet_aton

  1969.     isatty

  1970.     jack_port_get_latency_range

  1971.     kbhit

  1972.     LoadLibrary

  1973.     localtime_r

  1974.     lstat

  1975.     lzo1x_999_compress

  1976.     mach_absolute_time

  1977.     MapViewOfFile

  1978.     memalign

  1979.     mkstemp

  1980.     mmap

  1981.     mprotect

  1982.     nanosleep

  1983.     PeekNamedPipe

  1984.     posix_memalign

  1985.     pthread_cancel

  1986.     sched_getaffinity

  1987.     SetConsoleTextAttribute

  1988.     SetConsoleCtrlHandler

  1989.     setmode

  1990.     setrlimit

  1991.     Sleep

  1992.     strerror_r

  1993.     sysconf

  1994.     sysctl

  1995.     usleep

  1996.     UTGetOSTypeFromString

  1997.     VirtualAlloc

  1998.     wglGetProcAddress

  1999. "

  2000. 

  2001. TOOLCHAIN_FEATURES="

  2002.     as_dn_directive

  2003.     as_fpu_directive

  2004.     as_func

  2005.     as_object_arch

  2006.     asm_mod_q

  2007.     attribute_may_alias

  2008.     attribute_packed

  2009.     blocks_extension

  2010.     ebp_available

  2011.     ebx_available

  2012.     gnu_as

  2013.     gnu_windres

  2014.     ibm_asm

  2015.     inline_asm_direct_symbol_refs

  2016.     inline_asm_labels

  2017.     inline_asm_nonlocal_labels

  2018.     pragma_deprecated

  2019.     rsync_contimeout

  2020.     symver_asm_label

  2021.     symver_gnu_asm

  2022.     vfp_args

  2023.     xform_asm

  2024.     xmm_clobbers

  2025. "

  2026. 

  2027. TYPES_LIST="

  2028.     CONDITION_VARIABLE_Ptr

  2029.     socklen_t

  2030.     struct_addrinfo

  2031.     struct_group_source_req

  2032.     struct_ip_mreq_source

  2033.     struct_ipv6_mreq

  2034.     struct_msghdr_msg_flags

  2035.     struct_pollfd

  2036.     struct_rusage_ru_maxrss

  2037.     struct_sctp_event_subscribe

  2038.     struct_sockaddr_in6

  2039.     struct_sockaddr_sa_len

  2040.     struct_sockaddr_storage

  2041.     struct_stat_st_mtim_tv_nsec

  2042.     struct_v4l2_frmivalenum_discrete

  2043. "

  2044. 

  2045. HAVE_LIST="

  2046.     $ARCH_EXT_LIST

  2047.     $(add_suffix _external $ARCH_EXT_LIST)

  2048.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2049.     $ARCH_FEATURES

  2050.     $ATOMICS_LIST

  2051.     $BUILTIN_LIST

  2052.     $COMPLEX_FUNCS

  2053.     $HAVE_LIST_CMDLINE

  2054.     $HAVE_LIST_PUB

  2055.     $HEADERS_LIST

  2056.     $INTRINSICS_LIST

  2057.     $MATH_FUNCS

  2058.     $SYSTEM_FUNCS

  2059.     $THREADS_LIST

  2060.     $TOOLCHAIN_FEATURES

  2061.     $TYPES_LIST

  2062.     alsa

  2063.     atomics_native

  2064.     dos_paths

  2065.     jack

  2066.     libc_msvcrt

  2067.     makeinfo

  2068.     makeinfo_html

  2069.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2070.     perl

  2071.     pod2man

  2072.     sdl2

  2073.     section_data_rel_ro

  2074.     sndio

  2075.     texi2html

  2076.     threads

  2077.     uwp

  2078.     vaapi_drm

  2079.     vaapi_x11

  2080.     vdpau_x11

  2081.     winrt

  2082. "

  2083. 

  2084. # options emitted with CONFIG_ prefix but not available on the command line

  2085. CONFIG_EXTRA="

  2086.     aandcttables

  2087.     ac3dsp

  2088.     audio_frame_queue

  2089.     audiodsp

  2090.     blockdsp

  2091.     bswapdsp

  2092.     cabac

  2093.     dirac_parse

  2094.     dvprofile

  2095.     exif

  2096.     faandct

  2097.     faanidct

  2098.     fdctdsp

  2099.     flacdsp

  2100.     fmtconvert

  2101.     frame_thread_encoder

  2102.     g722dsp

  2103.     golomb

  2104.     gplv3

  2105.     h263dsp

  2106.     h264chroma

  2107.     h264dsp

  2108.     h264parse

  2109.     h264pred

  2110.     h264qpel

  2111.     hevcparse

  2112.     hpeldsp

  2113.     huffman

  2114.     huffyuvdsp

  2115.     huffyuvencdsp

  2116.     idctdsp

  2117.     iirfilter

  2118.     mdct15

  2119.     intrax8

  2120.     iso_media

  2121.     ividsp

  2122.     jpegtables

  2123.     lgplv3

  2124.     libx262

  2125.     llauddsp

  2126.     llviddsp

  2127.     llvidencdsp

  2128.     lpc

  2129.     lzf

  2130.     me_cmp

  2131.     mpeg_er

  2132.     mpegaudio

  2133.     mpegaudiodsp

  2134.     mpegaudioheader

  2135.     mpegvideo

  2136.     mpegvideoenc

  2137.     mss34dsp

  2138.     pixblockdsp

  2139.     qpeldsp

  2140.     qsv

  2141.     qsvdec

  2142.     qsvenc

  2143.     rangecoder

  2144.     riffdec

  2145.     riffenc

  2146.     rtpdec

  2147.     rtpenc_chain

  2148.     rv34dsp

  2149.     sinewin

  2150.     snappy

  2151.     srtp

  2152.     startcode

  2153.     texturedsp

  2154.     texturedspenc

  2155.     tpeldsp

  2156.     vaapi_encode

  2157.     vc1dsp

  2158.     videodsp

  2159.     vp3dsp

  2160.     vp56dsp

  2161.     vp8dsp

  2162.     vt_bt2020

  2163.     wma_freqs

  2164.     wmv2dsp

  2165. "

  2166. 

  2167. CMDLINE_SELECT="

  2168.     $ARCH_EXT_LIST

  2169.     $CONFIG_LIST

  2170.     $HAVE_LIST_CMDLINE

  2171.     $THREADS_LIST

  2172.     asm

  2173.     cross_compile

  2174.     debug

  2175.     extra_warnings

  2176.     logging

  2177.     lto

  2178.     optimizations

  2179.     rpath

  2180.     stripping

  2181. "

  2182. 

  2183. PATHS_LIST="

  2184.     bindir

  2185.     datadir

  2186.     docdir

  2187.     incdir

  2188.     libdir

  2189.     mandir

  2190.     pkgconfigdir

  2191.     prefix

  2192.     shlibdir

  2193.     install_name_dir

  2194. "

  2195. 

  2196. CMDLINE_SET="

  2197.     $PATHS_LIST

  2198.     ar

  2199.     arch

  2200.     as

  2201.     assert_level

  2202.     build_suffix

  2203.     cc

  2204.     objcc

  2205.     cpu

  2206.     cross_prefix

  2207.     custom_allocator

  2208.     cxx

  2209.     dep_cc

  2210.     doxygen

  2211.     env

  2212.     extra_version

  2213.     gas

  2214.     host_cc

  2215.     host_cflags

  2216.     host_extralibs

  2217.     host_ld

  2218.     host_ldflags

  2219.     host_os

  2220.     ignore_tests

  2221.     install

  2222.     ld

  2223.     ln_s

  2224.     logfile

  2225.     malloc_prefix

  2226.     nm

  2227.     optflags

  2228.     nvccflags

  2229.     pkg_config

  2230.     pkg_config_flags

  2231.     progs_suffix

  2232.     random_seed

  2233.     ranlib

  2234.     samples

  2235.     strip

  2236.     sws_max_filter_size

  2237.     sysinclude

  2238.     sysroot

  2239.     target_exec

  2240.     target_os

  2241.     target_path

  2242.     target_samples

  2243.     tempprefix

  2244.     toolchain

  2245.     valgrind

  2246.     x86asmexe

  2247. "

  2248. 

  2249. CMDLINE_APPEND="

  2250.     extra_cflags

  2251.     extra_cxxflags

  2252.     extra_objcflags

  2253.     host_cppflags

  2254. "

  2255. 

  2256. # code dependency declarations

  2257. 

  2258. # architecture extensions

  2259. 

  2260. armv5te_deps="arm"

  2261. armv6_deps="arm"

  2262. armv6t2_deps="arm"

  2263. armv8_deps="aarch64"

  2264. neon_deps_any="aarch64 arm"

  2265. intrinsics_neon_deps="neon"

  2266. vfp_deps_any="aarch64 arm"

  2267. vfpv3_deps="vfp"

  2268. setend_deps="arm"

  2269. 

  2270. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2271. 

  2272. loongson2_deps="mips"

  2273. loongson3_deps="mips"

  2274. mipsfpu_deps="mips"

  2275. mipsdsp_deps="mips"

  2276. mipsdspr2_deps="mips"

  2277. mips32r2_deps="mips"

  2278. mips32r5_deps="mips"

  2279. mips32r6_deps="mips"

  2280. mips64r2_deps="mips"

  2281. mips64r6_deps="mips"

  2282. msa_deps="mipsfpu"

  2283. mmi_deps="mips"

  2284. 

  2285. altivec_deps="ppc"

  2286. dcbzl_deps="ppc"

  2287. ldbrx_deps="ppc"

  2288. ppc4xx_deps="ppc"

  2289. vsx_deps="altivec"

  2290. power8_deps="vsx"

  2291. 

  2292. cpunop_deps="i686"

  2293. x86_64_select="i686"

  2294. x86_64_suggest="fast_cmov"

  2295. 

  2296. amd3dnow_deps="mmx"

  2297. amd3dnowext_deps="amd3dnow"

  2298. i686_deps="x86"

  2299. mmx_deps="x86"

  2300. mmxext_deps="mmx"

  2301. sse_deps="mmxext"

  2302. sse2_deps="sse"

  2303. sse3_deps="sse2"

  2304. ssse3_deps="sse3"

  2305. sse4_deps="ssse3"

  2306. sse42_deps="sse4"

  2307. aesni_deps="sse42"

  2308. avx_deps="sse42"

  2309. xop_deps="avx"

  2310. fma3_deps="avx"

  2311. fma4_deps="avx"

  2312. avx2_deps="avx"

  2313. 

  2314. mmx_external_deps="x86asm"

  2315. mmx_inline_deps="inline_asm"

  2316. mmx_suggest="mmx_external mmx_inline"

  2317. 

  2318. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2319.     eval dep=\$${ext}_deps

  2320.     eval ${ext}_external_deps='"${dep}_external"'

  2321.     eval ${ext}_inline_deps='"${dep}_inline"'

  2322.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2323. done

  2324. 

  2325. aligned_stack_if_any="aarch64 ppc x86"

  2326. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2327. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2328. fast_unaligned_if_any="aarch64 ppc x86"

  2329. simd_align_16_if_any="altivec neon sse"

  2330. simd_align_32_if_any="avx"

  2331. 

  2332. # system capabilities

  2333. symver_if_any="symver_asm_label symver_gnu_asm"

  2334. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2335. 

  2336. # threading support

  2337. atomics_gcc_if="sync_val_compare_and_swap"

  2338. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2339. atomics_win32_if="MemoryBarrier"

  2340. atomics_native_if_any="$ATOMICS_LIST"

  2341. w32threads_deps="atomics_native"

  2342. threads_if_any="$THREADS_LIST"

  2343. 

  2344. # subsystems

  2345. dct_select="rdft"

  2346. dirac_parse_select="golomb"

  2347. error_resilience_select="me_cmp"

  2348. faandct_deps="faan fdctdsp"

  2349. faanidct_deps="faan idctdsp"

  2350. h264dsp_select="startcode"

  2351. hevcparse_select="golomb"

  2352. frame_thread_encoder_deps="encoders threads"

  2353. intrax8_select="blockdsp idctdsp"

  2354. mdct_select="fft"

  2355. mdct15_select="fft"

  2356. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2357. mpeg_er_select="error_resilience"

  2358. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2359. mpegaudiodsp_select="dct"

  2360. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2361. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2362. vc1dsp_select="h264chroma qpeldsp startcode"

  2363. rdft_select="fft"

  2364. 

  2365. # decoders / encoders

  2366. aac_decoder_select="mdct15 mdct sinewin"

  2367. aac_fixed_decoder_select="mdct sinewin"

  2368. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2369. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2370. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2371. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2372. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2373. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2374. adpcm_g722_decoder_select="g722dsp"

  2375. adpcm_g722_encoder_select="g722dsp"

  2376. aic_decoder_select="golomb idctdsp"

  2377. alac_encoder_select="lpc"

  2378. als_decoder_select="bswapdsp"

  2379. amrnb_decoder_select="lsp"

  2380. amrwb_decoder_select="lsp"

  2381. amv_decoder_select="sp5x_decoder exif"

  2382. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2383. ape_decoder_select="bswapdsp llauddsp"

  2384. apng_decoder_select="zlib"

  2385. apng_encoder_select="llvidencdsp zlib"

  2386. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2387. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2388. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2389. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2390. atrac1_decoder_select="mdct sinewin"

  2391. atrac3_decoder_select="mdct"

  2392. atrac3p_decoder_select="mdct sinewin"

  2393. avrn_decoder_select="exif jpegtables"

  2394. bink_decoder_select="blockdsp hpeldsp"

  2395. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2396. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2397. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2398. clearvideo_decoder_select="idctdsp"

  2399. cllc_decoder_select="bswapdsp"

  2400. comfortnoise_encoder_select="lpc"

  2401. cook_decoder_select="audiodsp mdct sinewin"

  2402. cscd_decoder_select="lzo"

  2403. cscd_decoder_suggest="zlib"

  2404. dca_decoder_select="mdct"

  2405. dds_decoder_select="texturedsp"

  2406. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2407. dnxhd_decoder_select="blockdsp idctdsp"

  2408. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2409. dolby_e_decoder_select="mdct"

  2410. dvvideo_decoder_select="dvprofile idctdsp"

  2411. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2412. dxa_decoder_select="zlib"

  2413. dxv_decoder_select="lzf texturedsp"

  2414. eac3_decoder_select="ac3_decoder"

  2415. eac3_encoder_select="ac3_encoder"

  2416. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2417. eatgq_decoder_select="aandcttables"

  2418. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2419. exr_decoder_select="zlib"

  2420. ffv1_decoder_select="rangecoder"

  2421. ffv1_encoder_select="rangecoder"

  2422. ffvhuff_decoder_select="huffyuv_decoder"

  2423. ffvhuff_encoder_select="huffyuv_encoder"

  2424. fic_decoder_select="golomb"

  2425. flac_decoder_select="flacdsp"

  2426. flac_encoder_select="bswapdsp flacdsp lpc"

  2427. flashsv2_decoder_select="zlib"

  2428. flashsv2_encoder_select="zlib"

  2429. flashsv_decoder_select="zlib"

  2430. flashsv_encoder_select="zlib"

  2431. flv_decoder_select="h263_decoder"

  2432. flv_encoder_select="h263_encoder"

  2433. fourxm_decoder_select="blockdsp bswapdsp"

  2434. fraps_decoder_select="bswapdsp huffman"

  2435. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2436. g729_decoder_select="audiodsp"

  2437. h261_decoder_select="mpegvideo"

  2438. h261_encoder_select="aandcttables mpegvideoenc"

  2439. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2440. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2441. h263i_decoder_select="h263_decoder"

  2442. h263p_decoder_select="h263_decoder"

  2443. h263p_encoder_select="h263_encoder"

  2444. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2445. h264_decoder_suggest="error_resilience"

  2446. hap_decoder_select="snappy texturedsp"

  2447. hap_encoder_deps="libsnappy"

  2448. hap_encoder_select="texturedspenc"

  2449. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2450. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2451. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2452. iac_decoder_select="imc_decoder"

  2453. imc_decoder_select="bswapdsp fft mdct sinewin"

  2454. indeo3_decoder_select="hpeldsp"

  2455. indeo4_decoder_select="ividsp"

  2456. indeo5_decoder_select="ividsp"

  2457. interplay_video_decoder_select="hpeldsp"

  2458. jpegls_decoder_select="mjpeg_decoder"

  2459. jv_decoder_select="blockdsp"

  2460. lagarith_decoder_select="llviddsp"

  2461. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2462. magicyuv_decoder_select="llviddsp"

  2463. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2464. metasound_decoder_select="lsp mdct sinewin"

  2465. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2466. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2467. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2468. mjpegb_decoder_select="mjpeg_decoder"

  2469. mlp_decoder_select="mlp_parser"

  2470. mlp_encoder_select="lpc"

  2471. motionpixels_decoder_select="bswapdsp"

  2472. mp1_decoder_select="mpegaudio"

  2473. mp1float_decoder_select="mpegaudio"

  2474. mp2_decoder_select="mpegaudio"

  2475. mp2float_decoder_select="mpegaudio"

  2476. mp3_decoder_select="mpegaudio"

  2477. mp3adu_decoder_select="mpegaudio"

  2478. mp3adufloat_decoder_select="mpegaudio"

  2479. mp3float_decoder_select="mpegaudio"

  2480. mp3on4_decoder_select="mpegaudio"

  2481. mp3on4float_decoder_select="mpegaudio"

  2482. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2483. mpc8_decoder_select="mpegaudiodsp"

  2484. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2485. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2486. mpegvideo_decoder_select="mpegvideo"

  2487. mpeg1video_decoder_select="mpegvideo"

  2488. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2489. mpeg2video_decoder_select="mpegvideo"

  2490. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2491. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2492. mpeg4_encoder_select="h263_encoder"

  2493. msa1_decoder_select="mss34dsp"

  2494. mscc_decoder_select="zlib"

  2495. msmpeg4v1_decoder_select="h263_decoder"

  2496. msmpeg4v2_decoder_select="h263_decoder"

  2497. msmpeg4v2_encoder_select="h263_encoder"

  2498. msmpeg4v3_decoder_select="h263_decoder"

  2499. msmpeg4v3_encoder_select="h263_encoder"

  2500. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2501. mts2_decoder_select="mss34dsp"

  2502. mxpeg_decoder_select="mjpeg_decoder"

  2503. nellymoser_decoder_select="mdct sinewin"

  2504. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2505. nuv_decoder_select="idctdsp lzo"

  2506. on2avc_decoder_select="mdct"

  2507. opus_decoder_deps="swresample"

  2508. opus_decoder_select="mdct15"

  2509. opus_encoder_select="audio_frame_queue mdct15"

  2510. png_decoder_select="zlib"

  2511. png_encoder_select="llvidencdsp zlib"

  2512. prores_decoder_select="blockdsp idctdsp"

  2513. prores_encoder_select="fdctdsp"

  2514. qcelp_decoder_select="lsp"

  2515. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2516. ra_144_decoder_select="audiodsp"

  2517. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2518. ralf_decoder_select="golomb"

  2519. rawvideo_decoder_select="bswapdsp"

  2520. rscc_decoder_select="zlib"

  2521. rtjpeg_decoder_select="me_cmp"

  2522. rv10_decoder_select="h263_decoder"

  2523. rv10_encoder_select="h263_encoder"

  2524. rv20_decoder_select="h263_decoder"

  2525. rv20_encoder_select="h263_encoder"

  2526. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2527. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2528. screenpresso_decoder_select="zlib"

  2529. shorten_decoder_select="bswapdsp"

  2530. sipr_decoder_select="lsp"

  2531. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2532. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2533. sonic_decoder_select="golomb rangecoder"

  2534. sonic_encoder_select="golomb rangecoder"

  2535. sonic_ls_encoder_select="golomb rangecoder"

  2536. sp5x_decoder_select="mjpeg_decoder"

  2537. srgc_decoder_select="zlib"

  2538. svq1_decoder_select="hpeldsp"

  2539. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2540. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2541. svq3_decoder_suggest="zlib"

  2542. tak_decoder_select="audiodsp"

  2543. tdsc_decoder_select="zlib mjpeg_decoder"

  2544. theora_decoder_select="vp3_decoder"

  2545. thp_decoder_select="mjpeg_decoder"

  2546. tiff_decoder_suggest="zlib lzma"

  2547. tiff_encoder_suggest="zlib"

  2548. truehd_decoder_select="mlp_parser"

  2549. truehd_encoder_select="lpc"

  2550. truemotion2_decoder_select="bswapdsp"

  2551. truespeech_decoder_select="bswapdsp"

  2552. tscc_decoder_select="zlib"

  2553. twinvq_decoder_select="mdct lsp sinewin"

  2554. txd_decoder_select="texturedsp"

  2555. utvideo_decoder_select="bswapdsp llviddsp"

  2556. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2557. vble_decoder_select="llviddsp"

  2558. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2559. vc1_qsv_decoder_deps="libmfx"

  2560. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2561. vc1image_decoder_select="vc1_decoder"

  2562. vorbis_decoder_select="mdct"

  2563. vorbis_encoder_select="mdct"

  2564. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2565. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2566. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2567. vp6a_decoder_select="vp6_decoder"

  2568. vp6f_decoder_select="vp6_decoder"

  2569. vp7_decoder_select="h264pred videodsp vp8dsp"

  2570. vp8_decoder_select="h264pred videodsp vp8dsp"

  2571. vp9_decoder_select="videodsp vp9_parser"

  2572. webp_decoder_select="vp8_decoder exif"

  2573. wmalossless_decoder_select="llauddsp"

  2574. wmapro_decoder_select="mdct sinewin wma_freqs"

  2575. wmav1_decoder_select="mdct sinewin wma_freqs"

  2576. wmav1_encoder_select="mdct sinewin wma_freqs"

  2577. wmav2_decoder_select="mdct sinewin wma_freqs"

  2578. wmav2_encoder_select="mdct sinewin wma_freqs"

  2579. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2580. wmv1_decoder_select="h263_decoder"

  2581. wmv1_encoder_select="h263_encoder"

  2582. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2583. wmv2_encoder_select="h263_encoder wmv2dsp"

  2584. wmv3_decoder_select="vc1_decoder"

  2585. wmv3image_decoder_select="wmv3_decoder"

  2586. xma1_decoder_select="wmapro_decoder"

  2587. xma2_decoder_select="wmapro_decoder"

  2588. zerocodec_decoder_select="zlib"

  2589. zlib_decoder_select="zlib"

  2590. zlib_encoder_select="zlib"

  2591. zmbv_decoder_select="zlib"

  2592. zmbv_encoder_select="zlib"

  2593. 

  2594. # platform codecs

  2595. audiotoolbox_deps="AudioToolbox_AudioToolbox_h"

  2596. audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"

  2597. 

  2598. # hardware accelerators

  2599. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2600. cuda_deps_any="dlopen LoadLibrary"

  2601. cuvid_deps="cuda"

  2602. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2603. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"

  2604. dxva2_extralibs="-luser32"

  2605. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"

  2606. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2607. vda_deps="vda_framework pthreads"

  2608. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2609. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2610. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2611. xvmc_deps="X11_extensions_XvMClib_h"

  2612. 

  2613. h263_vaapi_hwaccel_deps="vaapi"

  2614. h263_vaapi_hwaccel_select="h263_decoder"

  2615. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2616. h263_videotoolbox_hwaccel_select="h263_decoder"

  2617. h264_cuvid_hwaccel_deps="cuda cuvid"

  2618. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2619. h264_d3d11va_hwaccel_deps="d3d11va"

  2620. h264_d3d11va_hwaccel_select="h264_decoder"

  2621. h264_d3d11va2_hwaccel_deps="d3d11va"

  2622. h264_d3d11va2_hwaccel_select="h264_decoder"

  2623. h264_dxva2_hwaccel_deps="dxva2"

  2624. h264_dxva2_hwaccel_select="h264_decoder"

  2625. h264_mediacodec_hwaccel_deps="mediacodec"

  2626. h264_mmal_hwaccel_deps="mmal"

  2627. h264_qsv_hwaccel_deps="libmfx"

  2628. h264_vaapi_hwaccel_deps="vaapi"

  2629. h264_vaapi_hwaccel_select="h264_decoder"

  2630. h264_vda_hwaccel_deps="vda"

  2631. h264_vda_hwaccel_select="h264_decoder"

  2632. h264_vda_old_hwaccel_deps="vda"

  2633. h264_vda_old_hwaccel_select="h264_decoder"

  2634. h264_vdpau_hwaccel_deps="vdpau"

  2635. h264_vdpau_hwaccel_select="h264_decoder"

  2636. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2637. h264_videotoolbox_hwaccel_select="h264_decoder"

  2638. hevc_cuvid_hwaccel_deps="cuda cuvid"

  2639. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2640. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2641. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2642. hevc_mediacodec_hwaccel_deps="mediacodec"

  2643. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2644. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2645. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2646. hevc_dxva2_hwaccel_select="hevc_decoder"

  2647. hevc_qsv_hwaccel_deps="libmfx"

  2648. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2649. hevc_vaapi_hwaccel_select="hevc_decoder"

  2650. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2651. hevc_vdpau_hwaccel_select="hevc_decoder"

  2652. mjpeg_cuvid_hwaccel_deps="cuda cuvid"

  2653. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2654. mpeg_xvmc_hwaccel_deps="xvmc"

  2655. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2656. mpeg1_cuvid_hwaccel_deps="cuda cuvid"

  2657. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2658. mpeg1_vdpau_hwaccel_deps="vdpau"

  2659. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2660. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2661. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2662. mpeg1_xvmc_hwaccel_deps="xvmc"

  2663. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2664. mpeg2_cuvid_hwaccel_deps="cuda cuvid"

  2665. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2666. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2667. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2668. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2669. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2670. mpeg2_dxva2_hwaccel_deps="dxva2"

  2671. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2672. mpeg2_mediacodec_hwaccel_deps="mediacodec"

  2673. mpeg2_mmal_hwaccel_deps="mmal"

  2674. mpeg2_qsv_hwaccel_deps="libmfx"

  2675. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2676. mpeg2_vaapi_hwaccel_deps="vaapi"

  2677. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2678. mpeg2_vdpau_hwaccel_deps="vdpau"

  2679. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2680. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2681. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2682. mpeg2_xvmc_hwaccel_deps="xvmc"

  2683. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2684. mpeg4_cuvid_hwaccel_deps="cuda cuvid"

  2685. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2686. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2687. mpeg4_mmal_hwaccel_deps="mmal"

  2688. mpeg4_vaapi_hwaccel_deps="vaapi"

  2689. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2690. mpeg4_vdpau_hwaccel_deps="vdpau"

  2691. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2692. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2693. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2694. vc1_cuvid_hwaccel_deps="cuda cuvid"

  2695. vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2696. vc1_d3d11va_hwaccel_deps="d3d11va"

  2697. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2698. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2699. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2700. vc1_dxva2_hwaccel_deps="dxva2"

  2701. vc1_dxva2_hwaccel_select="vc1_decoder"

  2702. vc1_mmal_hwaccel_deps="mmal"

  2703. vc1_qsv_hwaccel_deps="libmfx"

  2704. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2705. vc1_vaapi_hwaccel_deps="vaapi"

  2706. vc1_vaapi_hwaccel_select="vc1_decoder"

  2707. vc1_vdpau_hwaccel_deps="vdpau"

  2708. vc1_vdpau_hwaccel_select="vc1_decoder"

  2709. vp8_cuvid_hwaccel_deps="cuda cuvid"

  2710. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2711. vp9_cuvid_hwaccel_deps="cuda cuvid"

  2712. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2713. vp8_mediacodec_hwaccel_deps="mediacodec"

  2714. vp8_qsv_hwaccel_deps="libmfx"

  2715. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2716. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2717. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2718. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2719. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2720. vp9_dxva2_hwaccel_select="vp9_decoder"

  2721. vp9_mediacodec_hwaccel_deps="mediacodec"

  2722. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2723. vp9_vaapi_hwaccel_select="vp9_decoder"

  2724. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2725. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2726. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2727. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2728. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2729. 

  2730. # hardware-accelerated codecs

  2731. omx_deps="dlopen pthreads"

  2732. omx_extralibs='$ldl'

  2733. omx_rpi_select="omx"

  2734. qsvdec_select="qsv"

  2735. qsvenc_select="qsv"

  2736. vaapi_encode_deps="vaapi"

  2737. 

  2738. hwupload_cuda_filter_deps="cuda"

  2739. scale_npp_filter_deps="cuda libnpp"

  2740. scale_cuda_filter_deps="cuda_sdk"

  2741. 

  2742. nvenc_deps="cuda"

  2743. nvenc_deps_any="dlopen LoadLibrary"

  2744. nvenc_encoder_deps="nvenc"

  2745. 

  2746. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2747. h264_cuvid_decoder_deps="cuda cuvid"

  2748. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2749. h264_mediacodec_decoder_deps="mediacodec"

  2750. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2751. h264_mmal_decoder_deps="mmal"

  2752. h264_nvenc_encoder_deps="nvenc"

  2753. h264_omx_encoder_deps="omx"

  2754. h264_qsv_decoder_deps="libmfx"

  2755. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2756. h264_qsv_encoder_deps="libmfx"

  2757. h264_qsv_encoder_select="qsvenc"

  2758. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2759. h264_vaapi_encoder_select="vaapi_encode golomb"

  2760. h264_vda_decoder_deps="vda"

  2761. h264_vda_decoder_select="h264_decoder"

  2762. h264_vdpau_decoder_deps="vdpau"

  2763. h264_vdpau_decoder_select="h264_decoder"

  2764. hevc_cuvid_decoder_deps="cuda cuvid"

  2765. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2766. hevc_mediacodec_decoder_deps="mediacodec"

  2767. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2768. hevc_nvenc_encoder_deps="nvenc"

  2769. hevc_qsv_decoder_deps="libmfx"

  2770. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2771. hevc_qsv_encoder_deps="libmfx"

  2772. hevc_qsv_encoder_select="hevcparse qsvenc"

  2773. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2774. hevc_vaapi_encoder_select="vaapi_encode golomb"

  2775. mjpeg_cuvid_decoder_deps="cuda cuvid"

  2776. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2777. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2778. mpeg1_cuvid_decoder_deps="cuda cuvid"

  2779. mpeg1_vdpau_decoder_deps="vdpau"

  2780. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2781. mpeg2_crystalhd_decoder_select="crystalhd"

  2782. mpeg2_cuvid_decoder_deps="cuda cuvid"

  2783. mpeg2_mmal_decoder_deps="mmal"

  2784. mpeg2_mediacodec_decoder_deps="mediacodec"

  2785. mpeg2_qsv_decoder_deps="libmfx"

  2786. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2787. mpeg2_qsv_encoder_deps="libmfx"

  2788. mpeg2_qsv_encoder_select="qsvenc"

  2789. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2790. mpeg2_vaapi_encoder_select="vaapi_encode"

  2791. mpeg4_crystalhd_decoder_select="crystalhd"

  2792. mpeg4_cuvid_decoder_deps="cuda cuvid"

  2793. mpeg4_mediacodec_decoder_deps="mediacodec"

  2794. mpeg4_mmal_decoder_deps="mmal"

  2795. mpeg4_omx_encoder_deps="omx"

  2796. mpeg4_vdpau_decoder_deps="vdpau"

  2797. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2798. mpeg_vdpau_decoder_deps="vdpau"

  2799. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2800. msmpeg4_crystalhd_decoder_select="crystalhd"

  2801. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2802. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2803. vc1_crystalhd_decoder_select="crystalhd"

  2804. vc1_cuvid_decoder_deps="cuda cuvid"

  2805. vc1_mmal_decoder_deps="mmal"

  2806. vc1_vdpau_decoder_deps="vdpau"

  2807. vc1_vdpau_decoder_select="vc1_decoder"

  2808. vp8_cuvid_decoder_deps="cuda cuvid"

  2809. vp8_mediacodec_decoder_deps="mediacodec"

  2810. vp8_qsv_decoder_deps="libmfx"

  2811. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2812. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2813. vp8_vaapi_encoder_select="vaapi_encode"

  2814. vp9_cuvid_decoder_deps="cuda cuvid"

  2815. vp9_mediacodec_decoder_deps="mediacodec"

  2816. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2817. vp9_vaapi_encoder_select="vaapi_encode"

  2818. wmv3_crystalhd_decoder_select="crystalhd"

  2819. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2820. 

  2821. # parsers

  2822. h264_parser_select="golomb h264dsp h264parse"

  2823. hevc_parser_select="hevcparse"

  2824. mpegaudio_parser_select="mpegaudioheader"

  2825. mpegvideo_parser_select="mpegvideo"

  2826. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2827. vc1_parser_select="vc1dsp"

  2828. 

  2829. # bitstream_filters

  2830. mjpeg2jpeg_bsf_select="jpegtables"

  2831. 

  2832. # external libraries

  2833. aac_at_decoder_deps="audiotoolbox"

  2834. ac3_at_decoder_deps="audiotoolbox"

  2835. ac3_at_decoder_select="ac3_parser"

  2836. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2837. alac_at_decoder_deps="audiotoolbox"

  2838. amr_nb_at_decoder_deps="audiotoolbox"

  2839. avisynth_deps_any="dlopen LoadLibrary"

  2840. avisynth_demuxer_deps="avisynth"

  2841. avisynth_demuxer_select="riffdec"

  2842. eac3_at_decoder_deps="audiotoolbox"

  2843. eac3_at_decoder_select="ac3_parser"

  2844. gsm_ms_at_decoder_deps="audiotoolbox"

  2845. ilbc_at_decoder_deps="audiotoolbox"

  2846. mp1_at_decoder_deps="audiotoolbox"

  2847. mp2_at_decoder_deps="audiotoolbox"

  2848. mp3_at_decoder_deps="audiotoolbox"

  2849. mp1_at_decoder_select="mpegaudioheader"

  2850. mp2_at_decoder_select="mpegaudioheader"

  2851. mp3_at_decoder_select="mpegaudioheader"

  2852. pcm_alaw_at_decoder_deps="audiotoolbox"

  2853. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2854. qdmc_at_decoder_deps="audiotoolbox"

  2855. qdm2_at_decoder_deps="audiotoolbox"

  2856. aac_at_encoder_deps="audiotoolbox"

  2857. aac_at_encoder_select="audio_frame_queue"

  2858. alac_at_encoder_deps="audiotoolbox"

  2859. alac_at_encoder_select="audio_frame_queue"

  2860. ilbc_at_encoder_deps="audiotoolbox"

  2861. ilbc_at_encoder_select="audio_frame_queue"

  2862. pcm_alaw_at_encoder_deps="audiotoolbox"

  2863. pcm_alaw_at_encoder_select="audio_frame_queue"

  2864. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2865. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2866. chromaprint_muxer_deps="chromaprint"

  2867. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2868. libcelt_decoder_deps="libcelt"

  2869. libfdk_aac_decoder_deps="libfdk_aac"

  2870. libfdk_aac_encoder_deps="libfdk_aac"

  2871. libfdk_aac_encoder_select="audio_frame_queue"

  2872. libgme_demuxer_deps="libgme"

  2873. libgsm_decoder_deps="libgsm"

  2874. libgsm_encoder_deps="libgsm"

  2875. libgsm_ms_decoder_deps="libgsm"

  2876. libgsm_ms_encoder_deps="libgsm"

  2877. libilbc_decoder_deps="libilbc"

  2878. libilbc_encoder_deps="libilbc"

  2879. libkvazaar_encoder_deps="libkvazaar"

  2880. libmodplug_demuxer_deps="libmodplug"

  2881. libmp3lame_encoder_deps="libmp3lame"

  2882. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2883. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2884. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2885. libopencore_amrnb_encoder_select="audio_frame_queue"

  2886. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2887. libopenh264_decoder_deps="libopenh264"

  2888. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2889. libopenh264_encoder_deps="libopenh264"

  2890. libopenjpeg_decoder_deps="libopenjpeg"

  2891. libopenjpeg_encoder_deps="libopenjpeg"

  2892. libopenmpt_demuxer_deps="libopenmpt"

  2893. libopus_decoder_deps="libopus"

  2894. libopus_encoder_deps="libopus"

  2895. libopus_encoder_select="audio_frame_queue"

  2896. librsvg_decoder_deps="librsvg"

  2897. libshine_encoder_deps="libshine"

  2898. libshine_encoder_select="audio_frame_queue"

  2899. libspeex_decoder_deps="libspeex"

  2900. libspeex_encoder_deps="libspeex"

  2901. libspeex_encoder_select="audio_frame_queue"

  2902. libtheora_encoder_deps="libtheora"

  2903. libtwolame_encoder_deps="libtwolame"

  2904. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2905. libvorbis_decoder_deps="libvorbis"

  2906. libvorbis_encoder_deps="libvorbis"

  2907. libvorbis_encoder_select="audio_frame_queue"

  2908. libvpx_vp8_decoder_deps="libvpx"

  2909. libvpx_vp8_encoder_deps="libvpx"

  2910. libvpx_vp9_decoder_deps="libvpx"

  2911. libvpx_vp9_encoder_deps="libvpx"

  2912. libwavpack_encoder_deps="libwavpack"

  2913. libwavpack_encoder_select="audio_frame_queue"

  2914. libwebp_encoder_deps="libwebp"

  2915. libwebp_anim_encoder_deps="libwebp"

  2916. libx262_encoder_deps="libx262"

  2917. libx264_encoder_deps="libx264"

  2918. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2919. libx264rgb_encoder_select="libx264_encoder"

  2920. libx265_encoder_deps="libx265"

  2921. libxavs_encoder_deps="libxavs"

  2922. libxvid_encoder_deps="libxvid"

  2923. libzvbi_teletext_decoder_deps="libzvbi"

  2924. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2925. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2926. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2927. videotoolbox_encoder_suggest="vda_framework vt_bt2020"

  2928. vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"

  2929. 

  2930. # demuxers / muxers

  2931. ac3_demuxer_select="ac3_parser"

  2932. aiff_muxer_select="iso_media"

  2933. asf_demuxer_select="riffdec"

  2934. asf_o_demuxer_select="riffdec"

  2935. asf_muxer_select="riffenc"

  2936. asf_stream_muxer_select="asf_muxer"

  2937. avi_demuxer_select="iso_media riffdec exif"

  2938. avi_muxer_select="riffenc"

  2939. caf_demuxer_select="iso_media riffdec"

  2940. caf_muxer_select="iso_media"

  2941. dash_muxer_select="mp4_muxer"

  2942. dirac_demuxer_select="dirac_parser"

  2943. dts_demuxer_select="dca_parser"

  2944. dtshd_demuxer_select="dca_parser"

  2945. dv_demuxer_select="dvprofile"

  2946. dv_muxer_select="dvprofile"

  2947. dxa_demuxer_select="riffdec"

  2948. eac3_demuxer_select="ac3_parser"

  2949. f4v_muxer_select="mov_muxer"

  2950. fifo_muxer_deps="threads"

  2951. flac_demuxer_select="flac_parser"

  2952. hds_muxer_select="flv_muxer"

  2953. hls_muxer_select="mpegts_muxer"

  2954. image2_alias_pix_demuxer_select="image2_demuxer"

  2955. image2_brender_pix_demuxer_select="image2_demuxer"

  2956. ipod_muxer_select="mov_muxer"

  2957. ismv_muxer_select="mov_muxer"

  2958. matroska_audio_muxer_select="matroska_muxer"

  2959. matroska_demuxer_select="iso_media riffdec"

  2960. matroska_demuxer_suggest="bzlib lzo zlib"

  2961. matroska_muxer_select="iso_media riffenc"

  2962. mmf_muxer_select="riffenc"

  2963. mov_demuxer_select="iso_media riffdec"

  2964. mov_demuxer_suggest="zlib"

  2965. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2966. mp3_demuxer_select="mpegaudio_parser"

  2967. mp3_muxer_select="mpegaudioheader"

  2968. mp4_muxer_select="mov_muxer"

  2969. mpegts_demuxer_select="iso_media"

  2970. mpegts_muxer_select="adts_muxer latm_muxer"

  2971. mpegtsraw_demuxer_select="mpegts_demuxer"

  2972. mxf_d10_muxer_select="mxf_muxer"

  2973. mxf_opatom_muxer_select="mxf_muxer"

  2974. nut_muxer_select="riffenc"

  2975. nuv_demuxer_select="riffdec"

  2976. oga_muxer_select="ogg_muxer"

  2977. ogg_demuxer_select="dirac_parse"

  2978. ogv_muxer_select="ogg_muxer"

  2979. opus_muxer_select="ogg_muxer"

  2980. psp_muxer_select="mov_muxer"

  2981. rtp_demuxer_select="sdp_demuxer"

  2982. rtp_muxer_select="golomb"

  2983. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  2984. rtsp_demuxer_select="http_protocol rtpdec"

  2985. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2986. sap_demuxer_select="sdp_demuxer"

  2987. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2988. sdp_demuxer_select="rtpdec"

  2989. smoothstreaming_muxer_select="ismv_muxer"

  2990. spdif_muxer_select="aac_parser"

  2991. spx_muxer_select="ogg_muxer"

  2992. swf_demuxer_suggest="zlib"

  2993. tak_demuxer_select="tak_parser"

  2994. tg2_muxer_select="mov_muxer"

  2995. tgp_muxer_select="mov_muxer"

  2996. vobsub_demuxer_select="mpegps_demuxer"

  2997. w64_demuxer_select="wav_demuxer"

  2998. w64_muxer_select="wav_muxer"

  2999. wav_demuxer_select="riffdec"

  3000. wav_muxer_select="riffenc"

  3001. webm_muxer_select="iso_media riffenc"

  3002. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3003. wtv_demuxer_select="mpegts_demuxer riffdec"

  3004. wtv_muxer_select="mpegts_muxer riffenc"

  3005. xmv_demuxer_select="riffdec"

  3006. xwma_demuxer_select="riffdec"

  3007. 

  3008. # indevs / outdevs

  3009. alsa_indev_deps="alsa"

  3010. alsa_outdev_deps="alsa"

  3011. avfoundation_indev_deps="pthreads"

  3012. avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"

  3013. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3014. caca_outdev_deps="libcaca"

  3015. decklink_indev_deps="decklink threads"

  3016. decklink_indev_extralibs="-lstdc++"

  3017. decklink_outdev_deps="decklink threads"

  3018. decklink_outdev_extralibs="-lstdc++"

  3019. libndi_newtek_indev_deps="libndi_newtek"

  3020. libndi_newtek_indev_extralibs="-lndi"

  3021. libndi_newtek_outdev_deps="libndi_newtek"

  3022. libndi_newtek_outdev_extralibs="-lndi"

  3023. dshow_indev_deps="IBaseFilter"

  3024. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3025. dv1394_indev_deps="dv1394"

  3026. dv1394_indev_select="dv_demuxer"

  3027. fbdev_indev_deps="linux_fb_h"

  3028. fbdev_outdev_deps="linux_fb_h"

  3029. gdigrab_indev_deps="CreateDIBSection"

  3030. gdigrab_indev_extralibs="-lgdi32"

  3031. gdigrab_indev_select="bmp_decoder"

  3032. iec61883_indev_deps="libiec61883"

  3033. jack_indev_deps="jack"

  3034. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3035. lavfi_indev_deps="avfilter"

  3036. libcdio_indev_deps="libcdio"

  3037. libdc1394_indev_deps="libdc1394"

  3038. libv4l2_indev_deps="libv4l2"

  3039. openal_indev_deps="openal"

  3040. opengl_outdev_deps="opengl"

  3041. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  3042. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  3043. pulse_indev_deps="libpulse"

  3044. pulse_outdev_deps="libpulse"

  3045. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  3046. qtkit_indev_select="qtkit"

  3047. sdl2_outdev_deps="sdl2"

  3048. sndio_indev_deps="sndio"

  3049. sndio_outdev_deps="sndio"

  3050. v4l_indev_deps="linux_videodev_h"

  3051. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3052. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3053. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3054. xcbgrab_indev_deps="libxcb"

  3055. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3056. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3057. 

  3058. # protocols

  3059. async_protocol_deps="threads"

  3060. bluray_protocol_deps="libbluray"

  3061. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  3062. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3063. ffrtmpcrypt_protocol_select="tcp_protocol"

  3064. ffrtmphttp_protocol_deps="!librtmp_protocol"

  3065. ffrtmphttp_protocol_select="http_protocol"

  3066. ftp_protocol_select="tcp_protocol"

  3067. gopher_protocol_select="network"

  3068. http_protocol_select="tcp_protocol"

  3069. httpproxy_protocol_select="tcp_protocol"

  3070. https_protocol_select="tls_protocol"

  3071. icecast_protocol_select="http_protocol"

  3072. librtmp_protocol_deps="librtmp"

  3073. librtmpe_protocol_deps="librtmp"

  3074. librtmps_protocol_deps="librtmp"

  3075. librtmpt_protocol_deps="librtmp"

  3076. librtmpte_protocol_deps="librtmp"

  3077. libsmbclient_protocol_deps="libsmbclient gplv3"

  3078. libssh_protocol_deps="libssh"

  3079. mmsh_protocol_select="http_protocol"

  3080. mmst_protocol_select="network"

  3081. rtmp_protocol_deps="!librtmp_protocol"

  3082. rtmp_protocol_select="tcp_protocol"

  3083. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3084. rtmps_protocol_deps="!librtmp_protocol"

  3085. rtmps_protocol_select="tls_protocol"

  3086. rtmpt_protocol_select="ffrtmphttp_protocol"

  3087. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3088. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3089. rtp_protocol_select="udp_protocol"

  3090. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3091. sctp_protocol_select="network"

  3092. srtp_protocol_select="rtp_protocol srtp"

  3093. tcp_protocol_select="network"

  3094. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  3095. tls_gnutls_protocol_select="tcp_protocol"

  3096. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  3097. tls_openssl_protocol_select="tcp_protocol"

  3098. tls_schannel_protocol_deps="schannel"

  3099. tls_schannel_protocol_select="tcp_protocol"

  3100. tls_securetransport_protocol_deps="securetransport"

  3101. tls_securetransport_protocol_select="tcp_protocol"

  3102. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3103. udp_protocol_select="network"

  3104. udplite_protocol_select="network"

  3105. unix_protocol_deps="sys_un_h"

  3106. unix_protocol_select="network"

  3107. 

  3108. # filters

  3109. afftfilt_filter_deps="avcodec"

  3110. afftfilt_filter_select="fft"

  3111. afir_filter_deps="avcodec"

  3112. afir_filter_select="fft"

  3113. amovie_filter_deps="avcodec avformat"

  3114. aresample_filter_deps="swresample"

  3115. ass_filter_deps="libass"

  3116. atempo_filter_deps="avcodec"

  3117. atempo_filter_select="rdft"

  3118. azmq_filter_deps="libzmq"

  3119. blackframe_filter_deps="gpl"

  3120. boxblur_filter_deps="gpl"

  3121. bs2b_filter_deps="libbs2b"

  3122. colormatrix_filter_deps="gpl"

  3123. cover_rect_filter_deps="avcodec avformat gpl"

  3124. cropdetect_filter_deps="gpl"

  3125. deinterlace_qsv_filter_deps="libmfx"

  3126. deinterlace_vaapi_filter_deps="vaapi"

  3127. delogo_filter_deps="gpl"

  3128. deshake_filter_select="pixelutils"

  3129. drawtext_filter_deps="libfreetype"

  3130. elbg_filter_deps="avcodec"

  3131. eq_filter_deps="gpl"

  3132. fftfilt_filter_deps="avcodec"

  3133. fftfilt_filter_select="rdft"

  3134. find_rect_filter_deps="avcodec avformat gpl"

  3135. firequalizer_filter_deps="avcodec"

  3136. firequalizer_filter_select="rdft"

  3137. flite_filter_deps="libflite"

  3138. framerate_filter_select="pixelutils"

  3139. frei0r_filter_deps="frei0r dlopen"

  3140. frei0r_src_filter_deps="frei0r dlopen"

  3141. fspp_filter_deps="gpl"

  3142. geq_filter_deps="gpl"

  3143. histeq_filter_deps="gpl"

  3144. hqdn3d_filter_deps="gpl"

  3145. interlace_filter_deps="gpl"

  3146. kerndeint_filter_deps="gpl"

  3147. ladspa_filter_deps="ladspa dlopen"

  3148. mcdeint_filter_deps="avcodec gpl"

  3149. movie_filter_deps="avcodec avformat"

  3150. mpdecimate_filter_deps="gpl"

  3151. mpdecimate_filter_select="pixelutils"

  3152. mptestsrc_filter_deps="gpl"

  3153. negate_filter_deps="lut_filter"

  3154. nnedi_filter_deps="gpl"

  3155. ocr_filter_deps="libtesseract"

  3156. ocv_filter_deps="libopencv"

  3157. owdenoise_filter_deps="gpl"

  3158. pan_filter_deps="swresample"

  3159. perspective_filter_deps="gpl"

  3160. phase_filter_deps="gpl"

  3161. pp7_filter_deps="gpl"

  3162. pp_filter_deps="gpl postproc"

  3163. pullup_filter_deps="gpl"

  3164. removelogo_filter_deps="avcodec avformat swscale"

  3165. repeatfields_filter_deps="gpl"

  3166. resample_filter_deps="avresample"

  3167. rubberband_filter_deps="librubberband"

  3168. sab_filter_deps="gpl swscale"

  3169. scale2ref_filter_deps="swscale"

  3170. scale_filter_deps="swscale"

  3171. scale_qsv_filter_deps="libmfx"

  3172. select_filter_select="pixelutils"

  3173. showcqt_filter_deps="avcodec avformat swscale"

  3174. showcqt_filter_select="fft"

  3175. showfreqs_filter_deps="avcodec"

  3176. showfreqs_filter_select="fft"

  3177. showspectrum_filter_deps="avcodec"

  3178. showspectrum_filter_select="fft"

  3179. showspectrumpic_filter_deps="avcodec"

  3180. showspectrumpic_filter_select="fft"

  3181. signature_filter_deps="gpl avcodec avformat"

  3182. smartblur_filter_deps="gpl swscale"

  3183. sofalizer_filter_deps="libmysofa avcodec"

  3184. sofalizer_filter_select="fft"

  3185. spectrumsynth_filter_deps="avcodec"

  3186. spectrumsynth_filter_select="fft"

  3187. spp_filter_deps="gpl avcodec"

  3188. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3189. stereo3d_filter_deps="gpl"

  3190. subtitles_filter_deps="avformat avcodec libass"

  3191. super2xsai_filter_deps="gpl"

  3192. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3193. tinterlace_filter_deps="gpl"

  3194. tinterlace_merge_test_deps="tinterlace_filter"

  3195. tinterlace_pad_test_deps="tinterlace_filter"

  3196. uspp_filter_deps="gpl avcodec"

  3197. vaguedenoiser_filter_deps="gpl"

  3198. vidstabdetect_filter_deps="libvidstab"

  3199. vidstabtransform_filter_deps="libvidstab"

  3200. libvmaf_filter_deps="libvmaf"

  3201. zmq_filter_deps="libzmq"

  3202. zoompan_filter_deps="swscale"

  3203. zscale_filter_deps="libzimg"

  3204. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3205. 

  3206. # examples

  3207. avio_dir_cmd_deps="avformat avutil"

  3208. avio_reading_deps="avformat avcodec avutil"

  3209. decode_audio_example_deps="avcodec avutil"

  3210. decode_video_example_deps="avcodec avutil"

  3211. demuxing_decoding_example_deps="avcodec avformat avutil"

  3212. encode_audio_example_deps="avcodec avutil"

  3213. encode_video_example_deps="avcodec avutil"

  3214. extract_mvs_example_deps="avcodec avformat avutil"

  3215. filter_audio_example_deps="avfilter avutil"

  3216. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3217. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3218. http_multiclient_example_deps="avformat avutil fork"

  3219. hw_decode_example_deps="avcodec avformat avutil"

  3220. metadata_example_deps="avformat avutil"

  3221. muxing_example_deps="avcodec avformat avutil swscale"

  3222. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3223. remuxing_example_deps="avcodec avformat avutil"

  3224. resampling_audio_example_deps="avutil swresample"

  3225. scaling_video_example_deps="avutil swscale"

  3226. transcode_aac_example_deps="avcodec avformat swresample"

  3227. transcoding_example_deps="avfilter avcodec avformat avutil"

  3228. 

  3229. # libraries, in linking order

  3230. avcodec_deps="avutil"

  3231. avcodec_select="null_bsf"

  3232. avdevice_deps="avformat avcodec avutil"

  3233. avfilter_deps="avutil"

  3234. avformat_deps="avcodec avutil"

  3235. avresample_deps="avutil"

  3236. postproc_deps="avutil gpl"

  3237. swresample_deps="avutil"

  3238. swscale_deps="avutil"

  3239. 

  3240. # programs

  3241. ffmpeg_deps="avcodec avfilter avformat swresample"

  3242. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3243.                null_filter

  3244.                trim_filter"

  3245. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3246. ffplay_extralibs='$sdl2_extralibs'

  3247. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3248. ffprobe_deps="avcodec avformat"

  3249. ffserver_deps="avformat fork sarestart"

  3250. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3251. 

  3252. # documentation

  3253. podpages_deps="perl"

  3254. manpages_deps="perl pod2man"

  3255. htmlpages_deps="perl"

  3256. htmlpages_deps_any="makeinfo_html texi2html"

  3257. txtpages_deps="perl makeinfo"

  3258. doc_deps_any="manpages htmlpages podpages txtpages"

  3259. 

  3260. # default parameters

  3261. 

  3262. logfile="ffbuild/config.log"

  3263. 

  3264. # installation paths

  3265. prefix_default="/usr/local"

  3266. bindir_default='${prefix}/bin'

  3267. datadir_default='${prefix}/share/ffmpeg'

  3268. docdir_default='${prefix}/share/doc/ffmpeg'

  3269. incdir_default='${prefix}/include'

  3270. libdir_default='${prefix}/lib'

  3271. mandir_default='${prefix}/share/man'

  3272. 

  3273. # toolchain

  3274. ar_default="ar"

  3275. cc_default="gcc"

  3276. cxx_default="g++"

  3277. host_cc_default="gcc"

  3278. doxygen_default="doxygen"

  3279. install="install"

  3280. ln_s_default="ln -s -f"

  3281. nm_default="nm -g"

  3282. pkg_config_default=pkg-config

  3283. ranlib_default="ranlib"

  3284. strip_default="strip"

  3285. version_script='--version-script'

  3286. x86asmexe_default="nasm"

  3287. windres_default="windres"

  3288. nvcc_default="nvcc"

  3289. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3290. 

  3291. # OS

  3292. target_os_default=$(tolower $(uname -s))

  3293. host_os=$target_os_default

  3294. 

  3295. # machine

  3296. if test "$target_os_default" = aix; then

  3297.     arch_default=$(uname -p)

  3298.     strip_default="strip -X32_64"

  3299. else

  3300.     arch_default=$(uname -m)

  3301. fi

  3302. cpu="generic"

  3303. intrinsics="none"

  3304. 

  3305. # configurable options

  3306. enable $PROGRAM_LIST

  3307. enable $DOCUMENT_LIST

  3308. enable $EXAMPLE_LIST

  3309. enable $(filter_out avresample $LIBRARY_LIST)

  3310. enable stripping

  3311. 

  3312. enable asm

  3313. enable debug

  3314. enable doc

  3315. enable faan faandct faanidct

  3316. enable optimizations

  3317. enable runtime_cpudetect

  3318. enable safe_bitstream_reader

  3319. enable static

  3320. enable swscale_alpha

  3321. enable valgrind_backtrace

  3322. 

  3323. sws_max_filter_size_default=256

  3324. set_default sws_max_filter_size

  3325. 

  3326. # build settings

  3327. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3328. LIBPREF="lib"

  3329. LIBSUF=".a"

  3330. FULLNAME='$(NAME)$(BUILDSUF)'

  3331. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3332. SLIBPREF="lib"

  3333. SLIBSUF=".so"

  3334. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3335. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3336. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3337. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3338. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3339. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3340. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3341. 

  3342. asflags_filter=echo

  3343. cflags_filter=echo

  3344. ldflags_filter=echo

  3345. 

  3346. AS_C='-c'

  3347. AS_O='-o $@'

  3348. CC_C='-c'

  3349. CC_E='-E -o $@'

  3350. CC_O='-o $@'

  3351. CXX_C='-c'

  3352. CXX_O='-o $@'

  3353. OBJCC_C='-c'

  3354. OBJCC_E='-E -o $@'

  3355. OBJCC_O='-o $@'

  3356. X86ASM_O='-o $@'

  3357. LD_O='-o $@'

  3358. LD_LIB='-l%'

  3359. LD_PATH='-L'

  3360. HOSTCC_C='-c'

  3361. HOSTCC_E='-E -o $@'

  3362. HOSTCC_O='-o $@'

  3363. HOSTLD_O='-o $@'

  3364. NVCC_C='-c'

  3365. NVCC_O='-o $@'

  3366. 

  3367. host_extralibs='-lm'

  3368. host_cflags_filter=echo

  3369. host_ldflags_filter=echo

  3370. 

  3371. target_path='$(CURDIR)'

  3372. 

  3373. # since the object filename is not given with the -MM flag, the compiler

  3374. # is only able to print the basename, and we must add the path ourselves

  3375. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3376. DEPFLAGS='-MM'

  3377. 

  3378. mkdir -p ffbuild

  3379. 

  3380. # find source path

  3381. if test -f configure; then

  3382.     source_path=.

  3383. else

  3384.     source_path=$(cd $(dirname "$0"); pwd)

  3385.     case "$source_path" in

  3386.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3387.     esac

  3388.     test -e "$source_path/config.h" &&

  3389.         die "Out of tree builds are impossible with config.h in source dir."

  3390. fi

  3391. 

  3392. for v in "$@"; do

  3393.     r=${v#*=}

  3394.     l=${v%"$r"}

  3395.     r=$(sh_quote "$r")

  3396.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3397. done

  3398. 

  3399. find_things(){

  3400.     thing=$1

  3401.     pattern=$2

  3402.     file=$source_path/$3

  3403.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3404. }

  3405. 

  3406. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3407. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3408. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3409. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3410. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3411. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3412. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3413. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3414. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3415. 

  3416. find_things_extern(){

  3417.     thing=$1

  3418.     pattern=$2

  3419.     file=$source_path/$3

  3420.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3421. }

  3422. 

  3423. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3424. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3425. 

  3426. ALL_COMPONENTS="

  3427.     $BSF_LIST

  3428.     $DECODER_LIST

  3429.     $DEMUXER_LIST

  3430.     $ENCODER_LIST

  3431.     $FILTER_LIST

  3432.     $HWACCEL_LIST

  3433.     $INDEV_LIST

  3434.     $MUXER_LIST

  3435.     $OUTDEV_LIST

  3436.     $PARSER_LIST

  3437.     $PROTOCOL_LIST

  3438. "

  3439. 

  3440. for n in $COMPONENT_LIST; do

  3441.     v=$(toupper ${n%s})_LIST

  3442.     eval enable \$$v

  3443.     eval ${n}_if_any="\$$v"

  3444. done

  3445. 

  3446. enable $ARCH_EXT_LIST

  3447. 

  3448. die_unknown(){

  3449.     echo "Unknown option \"$1\"."

  3450.     echo "See $0 --help for available options."

  3451.     exit 1

  3452. }

  3453. 

  3454. print_in_columns() {

  3455.     cols=$(expr $ncols / 24)

  3456.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3457. }

  3458. 

  3459. show_list() {

  3460.     suffix=_$1

  3461.     shift

  3462.     echo $* | sed s/$suffix//g | print_in_columns

  3463.     exit 0

  3464. }

  3465. 

  3466. rand_list(){

  3467.     IFS=', '

  3468.     set -- $*

  3469.     unset IFS

  3470.     for thing; do

  3471.         comp=${thing%:*}

  3472.         prob=${thing#$comp}

  3473.         prob=${prob#:}

  3474.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3475.         echo "prob ${prob:-0.5}"

  3476.         printf '%s\n' $comp

  3477.     done

  3478. }

  3479. 

  3480. do_random(){

  3481.     action=$1

  3482.     shift

  3483.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3484.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3485. }

  3486. 

  3487. for opt do

  3488.     optval="${opt#*=}"

  3489.     case "$opt" in

  3490.         --extra-ldflags=*)

  3491.             add_ldflags $optval

  3492.         ;;

  3493.         --extra-ldexeflags=*)

  3494.             add_ldexeflags $optval

  3495.         ;;

  3496.         --extra-ldlibflags=*)

  3497.             add_ldlibflags $optval

  3498.         ;;

  3499.         --extra-libs=*)

  3500.             add_extralibs $optval

  3501.         ;;

  3502.         --disable-devices)

  3503.             disable $INDEV_LIST $OUTDEV_LIST

  3504.         ;;

  3505.         --enable-debug=*)

  3506.             debuglevel="$optval"

  3507.         ;;

  3508.         --disable-programs)

  3509.             disable $PROGRAM_LIST

  3510.         ;;

  3511.         --disable-everything)

  3512.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3513.         ;;

  3514.         --disable-all)

  3515.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3516.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3517.             enable avutil

  3518.         ;;

  3519.         --enable-random|--disable-random)

  3520.             action=${opt%%-random}

  3521.             do_random ${action#--} $COMPONENT_LIST

  3522.         ;;

  3523.         --enable-random=*|--disable-random=*)

  3524.             action=${opt%%-random=*}

  3525.             do_random ${action#--} $optval

  3526.         ;;

  3527.         --enable-*=*|--disable-*=*)

  3528.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3529.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3530.             eval list=\$$(toupper $thing)_LIST

  3531.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3532.             list=$(filter "$name" $list)

  3533.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3534.             $action $list

  3535.         ;;

  3536.         --enable-yasm|--disable-yasm)

  3537.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3538.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3539.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3540.         ;;

  3541.         --yasmexe=*)

  3542.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3543.                  "removed in the future. Use --x86asmexe instead."

  3544.             x86asmexe="$optval"

  3545.         ;;

  3546.         --enable-?*|--disable-?*)

  3547.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3548.             if is_in $option $COMPONENT_LIST; then

  3549.                 test $action = disable && action=unset

  3550.                 eval $action \$$(toupper ${option%s})_LIST

  3551.             elif is_in $option $CMDLINE_SELECT; then

  3552.                 $action $option

  3553.             else

  3554.                 die_unknown $opt

  3555.             fi

  3556.         ;;

  3557.         --list-*)

  3558.             NAME="${opt#--list-}"

  3559.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3560.             NAME=${NAME%s}

  3561.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3562.         ;;

  3563.         --help|-h) show_help

  3564.         ;;

  3565.         --quiet|-q) quiet=yes

  3566.         ;;

  3567.         --fatal-warnings) enable fatal_warnings

  3568.         ;;

  3569.         --libfuzzer=*)

  3570.             libfuzzer_path="$optval"

  3571.         ;;

  3572.         *)

  3573.             optname="${opt%%=*}"

  3574.             optname="${optname#--}"

  3575.             optname=$(echo "$optname" | sed 's/-/_/g')

  3576.             if is_in $optname $CMDLINE_SET; then

  3577.                 eval $optname='$optval'

  3578.             elif is_in $optname $CMDLINE_APPEND; then

  3579.                 append $optname "$optval"

  3580.             else

  3581.                 die_unknown $opt

  3582.             fi

  3583.         ;;

  3584.     esac

  3585. done

  3586. 

  3587. for e in $env; do

  3588.     eval "export $e"

  3589. done

  3590. 

  3591. # Mark specifically enabled, but normally autodetected libraries as requested.

  3592. for lib in $AUTODETECT_LIBS; do

  3593.     enabled $lib && request $lib

  3594. done

  3595. 

  3596. # Enable platform codecs by default.

  3597. enable_weak audiotoolbox

  3598. 

  3599. # Enable hwaccels by default.

  3600. enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc

  3601. enable_weak xlib

  3602. 

  3603. enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder

  3604. 

  3605. disabled logging && logfile=/dev/null

  3606. 

  3607. die_license_disabled() {

  3608.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3609. }

  3610. 

  3611. die_license_disabled_gpl() {

  3612.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3613. }

  3614. 

  3615. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3616. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3617. 

  3618. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3619. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3620. 

  3621. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3622. 

  3623. # Disable all the library-specific components if the library itself

  3624. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3625. 

  3626. disable_components(){

  3627.     disabled ${1} && disable $(

  3628.         eval components="\$$(toupper ${1})_COMPONENTS"

  3629.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3630.     )

  3631. }

  3632. 

  3633. map 'disable_components $v' $LIBRARY_LIST

  3634. 

  3635. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3636. set >> $logfile

  3637. 

  3638. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3639. 

  3640. enabled ossfuzz && {

  3641.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3642.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3643. }

  3644. 

  3645. case "$toolchain" in

  3646.     *-asan)

  3647.         cc_default="${toolchain%-asan}"

  3648.         add_cflags  -fsanitize=address

  3649.         add_ldflags -fsanitize=address

  3650.     ;;

  3651.     *-msan)

  3652.         cc_default="${toolchain%-msan}"

  3653.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3654.         add_ldflags -fsanitize=memory

  3655.     ;;

  3656.     *-tsan)

  3657.         cc_default="${toolchain%-tsan}"

  3658.         add_cflags  -fsanitize=thread -fPIE

  3659.         add_ldflags -fsanitize=thread -pie

  3660.         case "$toolchain" in

  3661.             gcc-tsan)

  3662.                 add_cflags  -fPIC

  3663.                 add_ldflags -fPIC

  3664.                 ;;

  3665.         esac

  3666.     ;;

  3667.     *-usan)

  3668.         cc_default="${toolchain%-usan}"

  3669.         add_cflags  -fsanitize=undefined

  3670.         add_ldflags -fsanitize=undefined

  3671.     ;;

  3672.     valgrind-*)

  3673.         target_exec_default="valgrind"

  3674.         case "$toolchain" in

  3675.             valgrind-massif)

  3676.                 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"

  3677.                 ;;

  3678.             valgrind-memcheck)

  3679.                 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"

  3680.                 ;;

  3681.         esac

  3682.     ;;

  3683.     msvc)

  3684.         # Check whether the current MSVC version needs the C99 converter.

  3685.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3686.         # support enough of C99 to build ffmpeg. Default to the new

  3687.         # behaviour if the regexp was unable to match anything, since this

  3688.         # successfully parses the version number of existing supported

  3689.         # versions that require the converter (MSVC 2010 and 2012).

  3690.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3691.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3692.             cc_default="cl"

  3693.             cxx_default="cl"

  3694.         else

  3695.             cc_default="c99wrap cl"

  3696.             cxx_default="c99wrap cl"

  3697.         fi

  3698.         ld_default="$source_path/compat/windows/mslink"

  3699.         nm_default="dumpbin -symbols"

  3700.         ar_default="lib"

  3701.         case "$arch" in

  3702.         arm*)

  3703.             as_default="armasm"

  3704.             ;;

  3705.         esac

  3706.         target_os_default="win32"

  3707.         # Use a relative path for TMPDIR. This makes sure all the

  3708.         # ffconf temp files are written with a relative path, avoiding

  3709.         # issues with msys/win32 path conversion for MSVC parameters

  3710.         # such as -Fo<file> or -out:<file>.

  3711.         TMPDIR=.

  3712.     ;;

  3713.     icl)

  3714.         cc_default="icl"

  3715.         ld_default="xilink"

  3716.         nm_default="dumpbin -symbols"

  3717.         ar_default="xilib"

  3718.         target_os_default="win32"

  3719.         TMPDIR=.

  3720.     ;;

  3721.     gcov)

  3722.         add_cflags  -fprofile-arcs -ftest-coverage

  3723.         add_ldflags -fprofile-arcs -ftest-coverage

  3724.     ;;

  3725.     llvm-cov)

  3726.         add_cflags -fprofile-arcs -ftest-coverage

  3727.         add_ldflags --coverage

  3728.     ;;

  3729.     hardened)

  3730.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3731.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3732.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3733.         add_cflags   -fPIE

  3734.         add_ldexeflags -fPIE -pie

  3735.     ;;

  3736.     ?*)

  3737.         die "Unknown toolchain $toolchain"

  3738.     ;;

  3739. esac

  3740. 

  3741. test -n "$cross_prefix" && enable cross_compile

  3742. 

  3743. if enabled cross_compile; then

  3744.     test -n "$arch" && test -n "$target_os" ||

  3745.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3746. fi

  3747. 

  3748. ar_default="${cross_prefix}${ar_default}"

  3749. cc_default="${cross_prefix}${cc_default}"

  3750. cxx_default="${cross_prefix}${cxx_default}"

  3751. nm_default="${cross_prefix}${nm_default}"

  3752. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3753. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3754.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3755. else

  3756.     ranlib_default="${cross_prefix}${ranlib_default}"

  3757. fi

  3758. strip_default="${cross_prefix}${strip_default}"

  3759. windres_default="${cross_prefix}${windres_default}"

  3760. 

  3761. sysinclude_default="${sysroot}/usr/include"

  3762. 

  3763. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3764.     target_exec target_os x86asmexe nvcc

  3765. enabled cross_compile || host_cc_default=$cc

  3766. set_default host_cc

  3767. 

  3768. pkg_config_fail_message=""

  3769. if ! $pkg_config --version >/dev/null 2>&1; then

  3770.     warn "$pkg_config not found, library detection may fail."

  3771.     pkg_config=false

  3772. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3773.     pkg_config_fail_message="

  3774. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3775. fi

  3776. 

  3777. if test $doxygen != $doxygen_default && \

  3778.   ! $doxygen --version >/dev/null 2>&1; then

  3779.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3780. fi

  3781. 

  3782. exesuf() {

  3783.     case $1 in

  3784.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3785.     esac

  3786. }

  3787. 

  3788. EXESUF=$(exesuf $target_os)

  3789. HOSTEXESUF=$(exesuf $host_os)

  3790. 

  3791. # set temporary file name

  3792. : ${TMPDIR:=$TEMPDIR}

  3793. : ${TMPDIR:=$TMP}

  3794. : ${TMPDIR:=/tmp}

  3795. 

  3796. if [ -n "$tempprefix" ] ; then

  3797.     mktemp(){

  3798.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3799.         echo "$tmpname"

  3800.         mkdir "$tmpname"

  3801.     }

  3802. elif ! check_cmd mktemp -u XXXXXX; then

  3803.     # simple replacement for missing mktemp

  3804.     # NOT SAFE FOR GENERAL USE

  3805.     mktemp(){

  3806.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3807.         echo "$tmpname"

  3808.         mkdir "$tmpname"

  3809.     }

  3810. fi

  3811. 

  3812. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3813.     die "Unable to create temporary directory in $TMPDIR."

  3814. 

  3815. tmpfile(){

  3816.     tmp="${FFTMPDIR}/test"$2

  3817.     (set -C; exec > $tmp) 2> /dev/null ||

  3818.         die "Unable to create temporary file in $FFTMPDIR."

  3819.     eval $1=$tmp

  3820. }

  3821. 

  3822. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3823. trap 'exit 2' INT

  3824. 

  3825. tmpfile TMPASM .asm

  3826. tmpfile TMPC   .c

  3827. tmpfile TMPCPP .cpp

  3828. tmpfile TMPE   $EXESUF

  3829. tmpfile TMPH   .h

  3830. tmpfile TMPM   .m

  3831. tmpfile TMPO   .o

  3832. tmpfile TMPS   .S

  3833. tmpfile TMPSH  .sh

  3834. tmpfile TMPV   .ver

  3835. 

  3836. unset -f mktemp

  3837. 

  3838. chmod +x $TMPE

  3839. 

  3840. # make sure we can execute files in $TMPDIR

  3841. cat > $TMPSH 2>> $logfile <<EOF

  3842. #! /bin/sh

  3843. EOF

  3844. chmod +x $TMPSH >> $logfile 2>&1

  3845. if ! $TMPSH >> $logfile 2>&1; then

  3846.     cat <<EOF

  3847. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3848. variable to another directory and make sure that it is not mounted noexec.

  3849. EOF

  3850.     die "Sanity test failed."

  3851. fi

  3852. 

  3853. armasm_flags(){

  3854.     for flag; do

  3855.         case $flag in

  3856.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3857.             # be passed to gas-preprocessor

  3858.             -M[TD]*)                                            ;;

  3859.             *)                  echo $flag                      ;;

  3860.         esac

  3861.    done

  3862. }

  3863. 

  3864. ccc_flags(){

  3865.     for flag; do

  3866.         case $flag in

  3867.             -std=c99)           echo -c99                       ;;

  3868.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3869.             -mieee)             echo -ieee                      ;;

  3870.             -O*|-fast)          echo $flag                      ;;

  3871.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3872.             -g)                 echo -g3                        ;;

  3873.             -Wall)              echo -msg_enable level2         ;;

  3874.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3875.             -Wl,*)              echo $flag                      ;;

  3876.             -f*|-W*)                                            ;;

  3877.             *)                  echo $flag                      ;;

  3878.         esac

  3879.    done

  3880. }

  3881. 

  3882. cparser_flags(){

  3883.     for flag; do

  3884.         case $flag in

  3885.             -Wno-switch)             echo -Wno-switch-enum ;;

  3886.             -Wno-format-zero-length) ;;

  3887.             -Wdisabled-optimization) ;;

  3888.             -Wno-pointer-sign)       echo -Wno-other ;;

  3889.             *)                       echo $flag ;;

  3890.         esac

  3891.     done

  3892. }

  3893. 

  3894. msvc_common_flags(){

  3895.     for flag; do

  3896.         case $flag in

  3897.             # In addition to specifying certain flags under the compiler

  3898.             # specific filters, they must be specified here as well or else the

  3899.             # generic catch all at the bottom will print the original flag.

  3900.             -Wall)                ;;

  3901.             -Wextra)              ;;

  3902.             -std=c99)             ;;

  3903.             # Common flags

  3904.             -fomit-frame-pointer) ;;

  3905.             -g)                   echo -Z7 ;;

  3906.             -fno-math-errno)      ;;

  3907.             -fno-common)          ;;

  3908.             -fno-signed-zeros)    ;;

  3909.             -fPIC)                ;;

  3910.             -mthumb)              ;;

  3911.             -march=*)             ;;

  3912.             -lz)                  echo zlib.lib ;;

  3913.             -lx264)               echo libx264.lib ;;

  3914.             -lstdc++)             ;;

  3915.             -l*)                  echo ${flag#-l}.lib ;;

  3916.             -LARGEADDRESSAWARE)   echo $flag ;;

  3917.             -L*)                  echo -libpath:${flag#-L} ;;

  3918.             *)                    echo $flag ;;

  3919.         esac

  3920.     done

  3921. }

  3922. 

  3923. msvc_flags(){

  3924.     msvc_common_flags "$@"

  3925.     for flag; do

  3926.         case $flag in

  3927.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  3928.                                        -wd4554 ;;

  3929.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3930.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3931.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3932.                                        -wd4307 \

  3933.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  3934.         esac

  3935.     done

  3936. }

  3937. 

  3938. icl_flags(){

  3939.     msvc_common_flags "$@"

  3940.     for flag; do

  3941.         case $flag in

  3942.             # Despite what Intel's documentation says -Wall, which is supported

  3943.             # on Windows, does enable remarks so disable them here.

  3944.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3945.             -std=c99)             echo -Qstd=c99 ;;

  3946.             -flto)                echo -ipo ;;

  3947.         esac

  3948.     done

  3949. }

  3950. 

  3951. icc_flags(){

  3952.     for flag; do

  3953.         case $flag in

  3954.             -flto)                echo -ipo ;;

  3955.             *)                    echo $flag ;;

  3956.         esac

  3957.     done

  3958. }

  3959. 

  3960. pgi_flags(){

  3961.     for flag; do

  3962.         case $flag in

  3963.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3964.             -fomit-frame-pointer) echo -Mnoframe ;;

  3965.             -g)                   echo -gopt ;;

  3966.             *)                    echo $flag ;;

  3967.         esac

  3968.     done

  3969. }

  3970. 

  3971. suncc_flags(){

  3972.     for flag; do

  3973.         case $flag in

  3974.             -march=*|-mcpu=*)

  3975.                 case "${flag#*=}" in

  3976.                     native)                   echo -xtarget=native       ;;

  3977.                     v9|niagara)               echo -xarch=sparc          ;;

  3978.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3979.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3980.                     i586|pentium)             echo -xchip=pentium        ;;

  3981.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3982.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3983.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3984.                     pentium4*)          echo -xtarget=pentium4           ;;

  3985.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3986.                     *-sse3)             echo -xarch=sse3                 ;;

  3987.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3988.                     bonnell)                   echo -xarch=ssse3         ;;

  3989.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3990.                     westmere)                  echo -xtarget=westmere    ;;

  3991.                     silvermont)                echo -xarch=sse4_2        ;;

  3992.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3993.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  3994.                                                echo -xarch=avx           ;;

  3995.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3996.                     btver1)                    echo -xarch=amdsse4a      ;;

  3997.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  3998.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3999.                     k8|opteron|athlon64|athlon-fx)

  4000.                                                echo -xarch=sse2a         ;;

  4001.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4002.                 esac

  4003.                 ;;

  4004.             -std=c99)             echo -xc99              ;;

  4005.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4006.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4007.             -W*,*)                echo $flag              ;;

  4008.             -f*-*|-W*|-mimpure-text)                      ;;

  4009.             -shared)              echo -G                 ;;

  4010.             *)                    echo $flag              ;;

  4011.         esac

  4012.     done

  4013. }

  4014. 

  4015. tms470_flags(){

  4016.     for flag; do

  4017.         case $flag in

  4018.             -march=*|-mcpu=*)

  4019.                 case "${flag#*=}" in

  4020.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  4021.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  4022.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  4023.                     armv6*|arm11*)          echo -mv=6   ;;

  4024.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  4025.                                             echo -mv=5e  ;;

  4026.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  4027.                 esac

  4028.                 ;;

  4029.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  4030.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  4031.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  4032.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  4033.             -msoft-float)   echo --float_support=vfplib       ;;

  4034.             -O[0-3]|-mf=*)  echo $flag                        ;;

  4035.             -g)             echo -g -mn                       ;;

  4036.             -pds=*)         echo $flag                        ;;

  4037.             -D*|-I*)        echo $flag                        ;;

  4038.             --gcc|--abi=*)  echo $flag                        ;;

  4039.             -me)            echo $flag                        ;;

  4040.         esac

  4041.     done

  4042. }

  4043. 

  4044. probe_cc(){

  4045.     pfx=$1

  4046.     _cc=$2

  4047.     first=$3

  4048. 

  4049.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4050.     unset _ld_o _ldflags _ld_lib _ld_path

  4051.     unset _depflags _DEPCMD _DEPFLAGS

  4052.     _flags_filter=echo

  4053. 

  4054.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4055.         true # no-op to avoid reading stdin in following checks

  4056.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4057.         _type=llvm_gcc

  4058.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4059.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4060.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4061.         _cflags_speed='-O3'

  4062.         _cflags_size='-Os'

  4063.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4064.         _type=gcc

  4065.         gcc_version=$($_cc --version | head -n1)

  4066.         gcc_basever=$($_cc -dumpversion)

  4067.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4068.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4069.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4070.         case $gcc_basever in

  4071.             2) ;;

  4072.             2.*) ;;

  4073.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4074.         esac

  4075.         if [ "$first" = true ]; then

  4076.             case $gcc_basever in

  4077.                 4.2*)

  4078.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4079.             esac

  4080.         fi

  4081.         _cflags_speed='-O3'

  4082.         _cflags_size='-Os'

  4083.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4084.         _type=icc

  4085.         _ident=$($_cc --version | head -n1)

  4086.         _depflags='-MMD'

  4087.         _cflags_speed='-O3'

  4088.         _cflags_size='-Os'

  4089.         _cflags_noopt='-O1'

  4090.         _flags_filter=icc_flags

  4091.     elif $_cc -v 2>&1 | grep -q xlc; then

  4092.         _type=xlc

  4093.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4094.         _cflags_speed='-O5'

  4095.         _cflags_size='-O5 -qcompact'

  4096.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  4097.         _type=ccc

  4098.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  4099.         _DEPFLAGS='-M'

  4100.         _cflags_speed='-fast'

  4101.         _cflags_size='-O1'

  4102.         _flags_filter=ccc_flags

  4103.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4104.         test -d "$sysroot" || die "No valid sysroot specified."

  4105.         _type=armcc

  4106.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4107.         armcc_conf="$PWD/armcc.conf"

  4108.         $_cc --arm_linux_configure                 \

  4109.              --arm_linux_config_file="$armcc_conf" \

  4110.              --configure_sysroot="$sysroot"        \

  4111.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4112.              die "Error creating armcc configuration file."

  4113.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4114.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4115.         as_default="${cross_prefix}gcc"

  4116.         _depflags='-MMD'

  4117.         _cflags_speed='-O3'

  4118.         _cflags_size='-Os'

  4119.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  4120.         _type=tms470

  4121.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  4122.         _flags='--gcc --abi=eabi -me'

  4123.         _cc_e='-ppl -fe=$@'

  4124.         _cc_o='-fe=$@'

  4125.         _depflags='-ppa -ppd=$(@:.o=.d)'

  4126.         _cflags_speed='-O3 -mf=5'

  4127.         _cflags_size='-O3 -mf=2'

  4128.         _flags_filter=tms470_flags

  4129.     elif $_cc -v 2>&1 | grep -q clang; then

  4130.         _type=clang

  4131.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4132.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4133.         _cflags_speed='-O3'

  4134.         _cflags_size='-Oz'

  4135.     elif $_cc -V 2>&1 | grep -q Sun; then

  4136.         _type=suncc

  4137.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4138.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4139.         _DEPFLAGS='-xM1 -xc99'

  4140.         _ldflags='-std=c99'

  4141.         _cflags_speed='-O5'

  4142.         _cflags_size='-O5 -xspace'

  4143.         _flags_filter=suncc_flags

  4144.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4145.         _type=pathscale

  4146.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4147.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4148.         _cflags_speed='-O2'

  4149.         _cflags_size='-Os'

  4150.         _flags_filter='filter_out -Wdisabled-optimization'

  4151.     elif $_cc -v 2>&1 | grep -q Open64; then

  4152.         _type=open64

  4153.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4154.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4155.         _cflags_speed='-O2'

  4156.         _cflags_size='-Os'

  4157.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4158.     elif $_cc -V 2>&1 | grep -q Portland; then

  4159.         _type=pgi

  4160.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  4161.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4162.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4163.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4164.         _cflags_noopt="-O"

  4165.         _flags_filter=pgi_flags

  4166.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4167.         _type=armasm

  4168.         _ident=$($_cc | head -n1)

  4169.         # 4509: "This form of conditional instruction is deprecated"

  4170.         _flags="-nologo -ignore 4509"

  4171.         _flags_filter=armasm_flags

  4172.     elif $_cc 2>&1 | grep -q Intel; then

  4173.         _type=icl

  4174.         _ident=$($_cc 2>&1 | head -n1)

  4175.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4176.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4177.         # versions (tested) as well.

  4178.         _cflags_speed="-O2"

  4179.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4180.         if $_cc 2>&1 | grep -q Linker; then

  4181.             _ld_o='-out:$@'

  4182.         else

  4183.             _ld_o='-Fe$@'

  4184.         fi

  4185.         _cc_o='-Fo$@'

  4186.         _cc_e='-P'

  4187.         _flags_filter=icl_flags

  4188.         _ld_lib='lib%.a'

  4189.         _ld_path='-libpath:'

  4190.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4191.         _flags='-nologo -Qdiag-error:4044,10157'

  4192.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4193.         # with MSVC which enables it by default.

  4194.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4195.         disable stripping

  4196.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4197.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4198.         # the -? parameter gives the help output which contains an identifyable

  4199.         # string, while it gives an error in other modes.

  4200.         _type=lld-link

  4201.         # The link.exe mode doesn't have a switch for getting the version,

  4202.         # but we can force it back to gnu mode and get the version from there.

  4203.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4204.         _ld_o='-out:$@'

  4205.         _flags_filter=msvc_flags

  4206.         _ld_lib='lib%.a'

  4207.         _ld_path='-libpath:'

  4208.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4209.         _type=msvc

  4210.         _ident=$($_cc 2>&1 | head -n1)

  4211.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4212.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4213.         _cflags_speed="-O2"

  4214.         _cflags_size="-O1"

  4215.         _cflags_noopt="-O1"

  4216.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4217.             _ld_o='-out:$@'

  4218.         else

  4219.             _ld_o='-Fe$@'

  4220.         fi

  4221.         _cc_o='-Fo$@'

  4222.         _cc_e='-P -Fi$@'

  4223.         _flags_filter=msvc_flags

  4224.         _ld_lib='lib%.a'

  4225.         _ld_path='-libpath:'

  4226.         _flags='-nologo'

  4227.         disable stripping

  4228.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4229.         _type=cparser

  4230.         _ident=$($_cc --version | head -n1)

  4231.         _depflags='-MMD'

  4232.         _cflags_speed='-O4'

  4233.         _cflags_size='-O2'

  4234.         _flags_filter=cparser_flags

  4235.     fi

  4236. 

  4237.     eval ${pfx}_type=\$_type

  4238.     eval ${pfx}_ident=\$_ident

  4239. }

  4240. 

  4241. set_ccvars(){

  4242.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4243.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4244.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4245. 

  4246.     if [ -n "$_depflags" ]; then

  4247.         eval ${1}_DEPFLAGS=\$_depflags

  4248.     else

  4249.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4250.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4251.         eval DEP${1}FLAGS=\$_flags

  4252.     fi

  4253. }

  4254. 

  4255. probe_cc cc "$cc" "true"

  4256. cflags_filter=$_flags_filter

  4257. cflags_speed=$_cflags_speed

  4258. cflags_size=$_cflags_size

  4259. cflags_noopt=$_cflags_noopt

  4260. add_cflags $_flags $_cflags

  4261. cc_ldflags=$_ldflags

  4262. set_ccvars CC

  4263. set_ccvars CXX

  4264. 

  4265. probe_cc hostcc "$host_cc"

  4266. host_cflags_filter=$_flags_filter

  4267. host_cflags_speed=$_cflags_speed

  4268. add_host_cflags  $_flags $_cflags

  4269. set_ccvars HOSTCC

  4270. 

  4271. test -n "$cc_type" && enable $cc_type ||

  4272.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4273. 

  4274. : ${as_default:=$cc}

  4275. : ${objcc_default:=$cc}

  4276. : ${dep_cc_default:=$cc}

  4277. : ${ld_default:=$cc}

  4278. : ${host_ld_default:=$host_cc}

  4279. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4280. 

  4281. probe_cc as "$as"

  4282. asflags_filter=$_flags_filter

  4283. add_asflags $_flags $_cflags

  4284. set_ccvars AS

  4285. 

  4286. probe_cc objcc "$objcc"

  4287. objcflags_filter=$_flags_filter

  4288. add_objcflags $_flags $_cflags

  4289. set_ccvars OBJC

  4290. 

  4291. probe_cc ld "$ld"

  4292. ldflags_filter=$_flags_filter

  4293. add_ldflags $_flags $_ldflags

  4294. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4295. LD_O=${_ld_o-$LD_O}

  4296. LD_LIB=${_ld_lib-$LD_LIB}

  4297. LD_PATH=${_ld_path-$LD_PATH}

  4298. 

  4299. probe_cc hostld "$host_ld"

  4300. host_ldflags_filter=$_flags_filter

  4301. add_host_ldflags $_flags $_ldflags

  4302. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4303. 

  4304. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4305.     probe_cc depcc "$dep_cc"

  4306.     CCDEP=${_DEPCMD:-$DEPCMD}

  4307.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4308.     DEPCCFLAGS=$_flags

  4309. fi

  4310. 

  4311. if $ar 2>&1 | grep -q Microsoft; then

  4312.     arflags="-nologo"

  4313.     ar_o='-out:$@'

  4314. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4315.     arflags="rq"

  4316.     ar_o='$@'

  4317. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4318.     arflags='-Xany -r -c'

  4319.     ar_o='$@'

  4320. elif $ar 2>&1 | grep -q "\[D\] "; then

  4321.     arflags="rcD"

  4322.     ar_o='$@'

  4323. else

  4324.     arflags="rc"

  4325.     ar_o='$@'

  4326. fi

  4327. 

  4328. add_cflags $extra_cflags

  4329. add_cxxflags $extra_cxxflags

  4330. add_objcflags $extra_objcflags

  4331. add_asflags $extra_cflags

  4332. 

  4333. if test -n "$sysroot"; then

  4334.     case "$cc_type" in

  4335.         gcc|llvm_gcc|clang)

  4336.             add_cppflags --sysroot="$sysroot"

  4337.             add_ldflags --sysroot="$sysroot"

  4338. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4339.             add_cppflags -isysroot "$sysroot"

  4340.             add_ldflags -isysroot "$sysroot"

  4341.         ;;

  4342.         tms470)

  4343.             add_cppflags -I"$sysinclude"

  4344.             add_ldflags  --sysroot="$sysroot"

  4345.         ;;

  4346.     esac

  4347. fi

  4348. 

  4349. if test "$cpu" = host; then

  4350.     enabled cross_compile &&

  4351.         die "--cpu=host makes no sense when cross-compiling."

  4352. 

  4353.     case "$cc_type" in

  4354.         gcc|llvm_gcc)

  4355.             check_native(){

  4356.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4357.                 sed -n "/cc1.*$1=/{

  4358.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4359.                             p

  4360.                             q

  4361.                         }" $TMPE

  4362.             }

  4363.             cpu=$(check_native -march || check_native -mcpu)

  4364.         ;;

  4365.         clang)

  4366.             check_native(){

  4367.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4368.                 sed -n "/cc1.*-target-cpu /{

  4369.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4370.                             p

  4371.                             q

  4372.                         }" $TMPE

  4373.             }

  4374.             cpu=$(check_native -march)

  4375.         ;;

  4376.     esac

  4377. 

  4378.     test "${cpu:-host}" = host &&

  4379.         die "--cpu=host not supported with compiler $cc"

  4380. fi

  4381. 

  4382. # Deal with common $arch aliases

  4383. case "$arch" in

  4384.     aarch64|arm64)

  4385.         arch="aarch64"

  4386.     ;;

  4387.     arm*|iPad*|iPhone*)

  4388.         arch="arm"

  4389.     ;;

  4390.     mips*|IP*)

  4391.         case "$arch" in

  4392.         *el)

  4393.             add_cppflags -EL

  4394.             add_ldflags -EL

  4395.         ;;

  4396.         *eb)

  4397.             add_cppflags -EB

  4398.             add_ldflags -EB

  4399.         ;;

  4400.         esac

  4401.         arch="mips"

  4402.     ;;

  4403.     parisc*|hppa*)

  4404.         arch="parisc"

  4405.     ;;

  4406.     "Power Macintosh"|ppc*|powerpc*)

  4407.         arch="ppc"

  4408.     ;;

  4409.     s390|s390x)

  4410.         arch="s390"

  4411.     ;;

  4412.     sh4|sh)

  4413.         arch="sh4"

  4414.     ;;

  4415.     sun4*|sparc*)

  4416.         arch="sparc"

  4417.     ;;

  4418.     tilegx|tile-gx)

  4419.         arch="tilegx"

  4420.     ;;

  4421.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4422.         arch="x86"

  4423.     ;;

  4424. esac

  4425. 

  4426. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4427. enable $arch

  4428. 

  4429. # Add processor-specific flags

  4430. if enabled aarch64; then

  4431. 

  4432.     case $cpu in

  4433.         armv*)

  4434.             cpuflags="-march=$cpu"

  4435.         ;;

  4436.         *)

  4437.             cpuflags="-mcpu=$cpu"

  4438.         ;;

  4439.     esac

  4440. 

  4441. elif enabled alpha; then

  4442. 

  4443.     cpuflags="-mcpu=$cpu"

  4444. 

  4445. elif enabled arm; then

  4446. 

  4447.     check_arm_arch() {

  4448.         check_cpp_condition stddef.h \

  4449.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4450.             $cpuflags

  4451.     }

  4452. 

  4453.     probe_arm_arch() {

  4454.         if   check_arm_arch 4;        then echo armv4

  4455.         elif check_arm_arch 4T;       then echo armv4t

  4456.         elif check_arm_arch 5;        then echo armv5

  4457.         elif check_arm_arch 5E;       then echo armv5e

  4458.         elif check_arm_arch 5T;       then echo armv5t

  4459.         elif check_arm_arch 5TE;      then echo armv5te

  4460.         elif check_arm_arch 5TEJ;     then echo armv5te

  4461.         elif check_arm_arch 6;        then echo armv6

  4462.         elif check_arm_arch 6J;       then echo armv6j

  4463.         elif check_arm_arch 6K;       then echo armv6k

  4464.         elif check_arm_arch 6Z;       then echo armv6z

  4465.         elif check_arm_arch 6ZK;      then echo armv6zk

  4466.         elif check_arm_arch 6T2;      then echo armv6t2

  4467.         elif check_arm_arch 7;        then echo armv7

  4468.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4469.         elif check_arm_arch 7S;       then echo armv7-a

  4470.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4471.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4472.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4473.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4474.         fi

  4475.     }

  4476. 

  4477.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4478. 

  4479.     case $cpu in

  4480.         armv*)

  4481.             cpuflags="-march=$cpu"

  4482.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4483.         ;;

  4484.         *)

  4485.             cpuflags="-mcpu=$cpu"

  4486.             case $cpu in

  4487.                 cortex-a*)                               subarch=armv7a  ;;

  4488.                 cortex-r*)                               subarch=armv7r  ;;

  4489.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4490.                 arm11*)                                  subarch=armv6   ;;

  4491.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4492.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4493.                 *)                             subarch=$(probe_arm_arch) ;;

  4494.             esac

  4495.         ;;

  4496.     esac

  4497. 

  4498.     case "$subarch" in

  4499.         armv5t*)    enable fast_clz                ;;

  4500.         armv[6-8]*)

  4501.             enable fast_clz

  4502.             disabled fast_unaligned || enable fast_unaligned

  4503.             ;;

  4504.     esac

  4505. 

  4506. elif enabled avr32; then

  4507. 

  4508.     case $cpu in

  4509.         ap7[02]0[0-2])

  4510.             subarch="avr32_ap"

  4511.             cpuflags="-mpart=$cpu"

  4512.         ;;

  4513.         ap)

  4514.             subarch="avr32_ap"

  4515.             cpuflags="-march=$cpu"

  4516.         ;;

  4517.         uc3[ab]*)

  4518.             subarch="avr32_uc"

  4519.             cpuflags="-mcpu=$cpu"

  4520.         ;;

  4521.         uc)

  4522.             subarch="avr32_uc"

  4523.             cpuflags="-march=$cpu"

  4524.         ;;

  4525.     esac

  4526. 

  4527. elif enabled bfin; then

  4528. 

  4529.     cpuflags="-mcpu=$cpu"

  4530. 

  4531. elif enabled mips; then

  4532. 

  4533.     cpuflags="-march=$cpu"

  4534. 

  4535.     if [ "$cpu" != "generic" ]; then

  4536.         disable mips32r2

  4537.         disable mips32r5

  4538.         disable mips64r2

  4539.         disable mips32r6

  4540.         disable mips64r6

  4541.         disable loongson2

  4542.         disable loongson3

  4543. 

  4544.         case $cpu in

  4545.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4546.                 enable mips32r2

  4547.                 disable msa

  4548.             ;;

  4549.             p5600|i6400|p6600)

  4550.                 disable mipsdsp

  4551.                 disable mipsdspr2

  4552.             ;;

  4553.             loongson*)

  4554.                 enable loongson2

  4555.                 enable loongson3

  4556.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4557.                 enable simd_align_16

  4558.                 enable fast_64bit

  4559.                 enable fast_clz

  4560.                 enable fast_cmov

  4561.                 enable fast_unaligned

  4562.                 disable aligned_stack

  4563.                 disable mipsfpu

  4564.                 disable mipsdsp

  4565.                 disable mipsdspr2

  4566.                 case $cpu in

  4567.                     loongson3*)

  4568.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4569.                     ;;

  4570.                     loongson2e)

  4571.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4572.                     ;;

  4573.                     loongson2f)

  4574.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4575.                     ;;

  4576.                 esac

  4577.             ;;

  4578.             *)

  4579.                 # Unknown CPU. Disable everything.

  4580.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4581.                 disable mipsfpu

  4582.                 disable mipsdsp

  4583.                 disable mipsdspr2

  4584.                 disable msa

  4585.                 disable mmi

  4586.             ;;

  4587.         esac

  4588. 

  4589.         case $cpu in

  4590.             24kc)

  4591.                 disable mipsfpu

  4592.                 disable mipsdsp

  4593.                 disable mipsdspr2

  4594.             ;;

  4595.             24kf*)

  4596.                 disable mipsdsp

  4597.                 disable mipsdspr2

  4598.             ;;

  4599.             24kec|34kc|1004kc)

  4600.                 disable mipsfpu

  4601.                 disable mipsdspr2

  4602.             ;;

  4603.             24kef*|34kf*|1004kf*)

  4604.                 disable mipsdspr2

  4605.             ;;

  4606.             74kc)

  4607.                 disable mipsfpu

  4608.             ;;

  4609.             p5600)

  4610.                 enable mips32r5

  4611.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4612.             ;;

  4613.             i6400)

  4614.                 enable mips64r6

  4615.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4616.             ;;

  4617.             p6600)

  4618.                 enable mips64r6

  4619.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4620.             ;;

  4621.         esac

  4622.     else

  4623.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4624.         warn 'generic cpu selected'

  4625.     fi

  4626. 

  4627. elif enabled ppc; then

  4628. 

  4629.     disable ldbrx

  4630. 

  4631.     case $(tolower $cpu) in

  4632.         601|ppc601|powerpc601)

  4633.             cpuflags="-mcpu=601"

  4634.             disable altivec

  4635.         ;;

  4636.         603*|ppc603*|powerpc603*)

  4637.             cpuflags="-mcpu=603"

  4638.             disable altivec

  4639.         ;;

  4640.         604*|ppc604*|powerpc604*)

  4641.             cpuflags="-mcpu=604"

  4642.             disable altivec

  4643.         ;;

  4644.         g3|75*|ppc75*|powerpc75*)

  4645.             cpuflags="-mcpu=750"

  4646.             disable altivec

  4647.         ;;

  4648.         g4|745*|ppc745*|powerpc745*)

  4649.             cpuflags="-mcpu=7450"

  4650.             disable vsx

  4651.         ;;

  4652.         74*|ppc74*|powerpc74*)

  4653.             cpuflags="-mcpu=7400"

  4654.             disable vsx

  4655.         ;;

  4656.         g5|970|ppc970|powerpc970)

  4657.             cpuflags="-mcpu=970"

  4658.             disable vsx

  4659.         ;;

  4660.         power[3-6]*)

  4661.             cpuflags="-mcpu=$cpu"

  4662.             disable vsx

  4663.         ;;

  4664.         power[7-8]*)

  4665.             cpuflags="-mcpu=$cpu"

  4666.         ;;

  4667.         cell)

  4668.             cpuflags="-mcpu=cell"

  4669.             enable ldbrx

  4670.             disable vsx

  4671.         ;;

  4672.         e500mc)

  4673.             cpuflags="-mcpu=e500mc"

  4674.             disable altivec

  4675.         ;;

  4676.         e500v2)

  4677.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4678.             disable altivec

  4679.             disable dcbzl

  4680.         ;;

  4681.         e500)

  4682.             cpuflags="-mcpu=8540 -mhard-float"

  4683.             disable altivec

  4684.             disable dcbzl

  4685.         ;;

  4686.     esac

  4687. 

  4688. elif enabled sparc; then

  4689. 

  4690.     case $cpu in

  4691.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4692.             cpuflags="-mcpu=$cpu"

  4693.         ;;

  4694.         ultrasparc*|niagara[234])

  4695.             cpuflags="-mcpu=$cpu"

  4696.         ;;

  4697.     esac

  4698. 

  4699. elif enabled x86; then

  4700. 

  4701.     case $cpu in

  4702.         i[345]86|pentium)

  4703.             cpuflags="-march=$cpu"

  4704.             disable i686

  4705.             disable mmx

  4706.         ;;

  4707.         # targets that do NOT support nopl and conditional mov (cmov)

  4708.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4709.             cpuflags="-march=$cpu"

  4710.             disable i686

  4711.         ;;

  4712.         # targets that do support nopl and conditional mov (cmov)

  4713.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4714.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4715.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4716.             cpuflags="-march=$cpu"

  4717.             enable i686

  4718.             enable fast_cmov

  4719.         ;;

  4720.         # targets that do support conditional mov but on which it's slow

  4721.         pentium4|pentium4m|prescott|nocona)

  4722.             cpuflags="-march=$cpu"

  4723.             enable i686

  4724.             disable fast_cmov

  4725.         ;;

  4726.     esac

  4727. 

  4728. fi

  4729. 

  4730. if [ "$cpu" != generic ]; then

  4731.     add_cflags  $cpuflags

  4732.     add_asflags $cpuflags

  4733.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4734. fi

  4735. 

  4736. # compiler sanity check

  4737. check_exec <<EOF

  4738. int main(void){ return 0; }

  4739. EOF

  4740. if test "$?" != 0; then

  4741.     echo "$cc is unable to create an executable file."

  4742.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4743.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4744.         echo "Only do this if you know what cross compiling means."

  4745.     fi

  4746.     die "C compiler test failed."

  4747. fi

  4748. 

  4749. add_cppflags -D_ISOC99_SOURCE

  4750. add_cxxflags -D__STDC_CONSTANT_MACROS

  4751. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4752. 

  4753. # some compilers silently accept -std=c11, so we also need to check that the

  4754. # version macro is defined properly

  4755. if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then

  4756.     add_cflags -std=c11

  4757. else

  4758.     check_cflags -std=c99

  4759. fi

  4760. 

  4761. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4762. #include <stdlib.h>

  4763. EOF

  4764. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4765. #include <stdlib.h>

  4766. EOF

  4767. 

  4768. add_host_cppflags -D_ISOC99_SOURCE

  4769. check_host_cflags -std=c99

  4770. check_host_cflags -Wall

  4771. check_host_cflags $host_cflags_speed

  4772. 

  4773. check_64bit(){

  4774.     arch32=$1

  4775.     arch64=$2

  4776.     expr=$3

  4777.     check_code cc "" "int test[2*($expr) - 1]" &&

  4778.         subarch=$arch64 || subarch=$arch32

  4779. }

  4780. 

  4781. case "$arch" in

  4782.     aarch64|alpha|ia64)

  4783.         spic=$shared

  4784.     ;;

  4785.     mips)

  4786.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4787.         spic=$shared

  4788.     ;;

  4789.     parisc)

  4790.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4791.         spic=$shared

  4792.     ;;

  4793.     ppc)

  4794.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4795.         spic=$shared

  4796.     ;;

  4797.     s390)

  4798.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4799.         spic=$shared

  4800.     ;;

  4801.     sparc)

  4802.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4803.         spic=$shared

  4804.     ;;

  4805.     x86)

  4806.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4807.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4808.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4809.             subarch=x86_64

  4810.         if test "$subarch" = "x86_64"; then

  4811.             spic=$shared

  4812.         fi

  4813.     ;;

  4814.     ppc)

  4815.         check_cc <<EOF && subarch="ppc64"

  4816.         int test[(int)sizeof(char*) - 7];

  4817. EOF

  4818.     ;;

  4819. esac

  4820. 

  4821. enable $subarch

  4822. enabled spic && enable_weak pic

  4823. 

  4824. enabled x86_64 && objformat=elf64 || objformat="elf32"

  4825. 

  4826. # OS specific

  4827. case $target_os in

  4828.     aix)

  4829.         SHFLAGS=-shared

  4830.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4831.         enabled shared && add_ldflags -Wl,-brtl

  4832.         ;;

  4833.     android)

  4834.         disable symver

  4835.         enable section_data_rel_ro

  4836.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4837.         SLIB_INSTALL_LINKS=

  4838.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4839.         ;;

  4840.     haiku)

  4841.         prefix_default="/boot/common"

  4842.         network_extralibs="-lnetwork"

  4843.         host_extralibs=

  4844.         ;;

  4845.     sunos)

  4846.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4847.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4848.         network_extralibs="-lsocket -lnsl"

  4849.         add_cppflags -D__EXTENSIONS__

  4850.         # When using suncc to build, the Solaris linker will mark

  4851.         # an executable with each instruction set encountered by

  4852.         # the Solaris assembler.  As our libraries contain their own

  4853.         # guards for processor-specific code, instead suppress

  4854.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4855.         enabled_all suncc x86 &&

  4856.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4857.             add_ldflags -Wl,-M,mapfile

  4858.         nm_default='nm -P -g'

  4859.         version_script='-M'

  4860.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4861.         ;;

  4862.     netbsd)

  4863.         disable symver

  4864.         oss_indev_extralibs="-lossaudio"

  4865.         oss_outdev_extralibs="-lossaudio"

  4866.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4867.         ;;

  4868.     openbsd|bitrig)

  4869.         disable symver

  4870.         SHFLAGS='-shared'

  4871.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4872.         SLIB_INSTALL_LINKS=

  4873.         oss_indev_extralibs="-lossaudio"

  4874.         oss_outdev_extralibs="-lossaudio"

  4875.         ;;

  4876.     dragonfly)

  4877.         disable symver

  4878.         ;;

  4879.     freebsd)

  4880.         ;;

  4881.     bsd/os)

  4882.         add_extralibs -lpoll -lgnugetopt

  4883.         strip="strip -d"

  4884.         ;;

  4885.     darwin)

  4886.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4887.         install_name_dir_default='$(SHLIBDIR)'

  4888.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4889.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4890.         strip="${strip} -x"

  4891.         add_ldflags -Wl,-dynamic,-search_paths_first

  4892.         SLIBSUF=".dylib"

  4893.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4894.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4895.         objformat="macho"

  4896.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4897.         enabled_any pic shared x86_64 ||

  4898.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4899.         check_header dispatch/dispatch.h &&

  4900.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4901.         version_script='-exported_symbols_list'

  4902.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4903.         ;;

  4904.     msys*)

  4905.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4906.         ;;

  4907.     mingw32*|mingw64*)

  4908.         if test $target_os = "mingw32ce"; then

  4909.             disable network

  4910.         else

  4911.             target_os=mingw32

  4912.         fi

  4913.         LIBTARGET=i386

  4914.         if enabled x86_64; then

  4915.             LIBTARGET="i386:x86-64"

  4916.         elif enabled arm; then

  4917.             LIBTARGET=arm-wince

  4918.         fi

  4919.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4920.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4921.         shlibdir_default="$bindir_default"

  4922.         SLIBPREF=""

  4923.         SLIBSUF=".dll"

  4924.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4925.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4926.         dlltool="${cross_prefix}dlltool"

  4927.         if check_cmd lib.exe -list; then

  4928.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4929.             if enabled x86_64; then

  4930.                 LIBTARGET=x64

  4931.             fi

  4932.         elif check_cmd $dlltool --version; then

  4933.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'

  4934.         fi

  4935.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4936.         SLIB_INSTALL_LINKS=

  4937.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4938.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4939.         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'

  4940.         enabled x86_64 && objformat="win64" || objformat="win32"

  4941.         ranlib=:

  4942.         enable dos_paths

  4943.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4944.         # Lets work around some stupidity in binutils.

  4945.         # ld will strip relocations from executables even though we need them

  4946.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4947.         # however ld then forgets what the entry point should be (oops) so we

  4948.         # have to manually (re)set it.

  4949.         if enabled x86_32; then

  4950.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4951.         elif enabled x86_64; then

  4952.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4953.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4954.             # Set image base >4GB for extra entropy with HEASLR

  4955.             add_ldexeflags -Wl,--image-base,0x140000000

  4956.             append SHFLAGS -Wl,--image-base,0x180000000

  4957.         fi

  4958.         ;;

  4959.     win32|win64)

  4960.         disable symver

  4961.         if enabled shared; then

  4962.             # Link to the import library instead of the normal static library

  4963.             # for shared libs.

  4964.             LD_LIB='%.lib'

  4965.             # Cannot build both shared and static libs with MSVC or icl.

  4966.             disable static

  4967.         fi

  4968.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4969.         shlibdir_default="$bindir_default"

  4970.         SLIBPREF=""

  4971.         SLIBSUF=".dll"

  4972.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4973.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4974.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4975.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4976.         SLIB_INSTALL_LINKS=

  4977.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4978.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4979.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4980.         enabled x86_64 && objformat="win64" || objformat="win32"

  4981.         ranlib=:

  4982.         enable dos_paths

  4983.         ;;

  4984.     cygwin*)

  4985.         target_os=cygwin

  4986.         shlibdir_default="$bindir_default"

  4987.         SLIBPREF="cyg"

  4988.         SLIBSUF=".dll"

  4989.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4990.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4991.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4992.         SLIB_INSTALL_LINKS=

  4993.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4994.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4995.         enabled x86_64 && objformat="win64" || objformat="win32"

  4996.         enable dos_paths

  4997.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4998.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4999.         ;;

  5000.     *-dos|freedos|opendos)

  5001.         network_extralibs="-lsocket"

  5002.         objformat="coff"

  5003.         enable dos_paths

  5004.         add_cppflags -U__STRICT_ANSI__

  5005.         ;;

  5006.     linux)

  5007.         enable dv1394

  5008.         enable section_data_rel_ro

  5009.         ;;

  5010.     irix*)

  5011.         target_os=irix

  5012.         ranlib="echo ignoring ranlib"

  5013.         ;;

  5014.     os/2*)

  5015.         strip="lxlite -CS"

  5016.         objformat="aout"

  5017.         add_cppflags -D_GNU_SOURCE

  5018.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5019.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5020.         LIBSUF="_s.a"

  5021.         SLIBPREF=""

  5022.         SLIBSUF=".dll"

  5023.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5024.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5025.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5026.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5027.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5028.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5029.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5030.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5031.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5032.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5033.         SLIB_INSTALL_LINKS=

  5034.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5035.         enable dos_paths

  5036.         enable_weak os2threads

  5037.         ;;

  5038.     gnu/kfreebsd)

  5039.         add_cppflags -D_BSD_SOURCE

  5040.         ;;

  5041.     gnu)

  5042.         ;;

  5043.     qnx)

  5044.         add_cppflags -D_QNX_SOURCE

  5045.         network_extralibs="-lsocket"

  5046.         ;;

  5047.     symbian)

  5048.         SLIBSUF=".dll"

  5049.         enable dos_paths

  5050.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5051.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5052.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5053.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5054.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5055.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5056.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5057.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5058.         ;;

  5059.     osf1)

  5060.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  5061.         ;;

  5062.     minix)

  5063.         ;;

  5064.     none)

  5065.         ;;

  5066.     *)

  5067.         die "Unknown OS '$target_os'."

  5068.         ;;

  5069. esac

  5070. 

  5071. # test if creating links works

  5072. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5073. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5074. mkdir "$link_dest"

  5075. $ln_s "$link_dest" "$link_name"

  5076. touch "$link_dest/test_file"

  5077. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5078.     # create link to source path

  5079.     [ -e src ] && rm src

  5080.     $ln_s "$source_path" src

  5081.     source_link=src

  5082. else

  5083.     # creating directory links doesn't work

  5084.     # fall back to using the full source path

  5085.     source_link="$source_path"

  5086. fi

  5087. # cleanup

  5088. rm -r "$link_dest"

  5089. rm -r "$link_name"

  5090. 

  5091. # determine libc flavour

  5092. 

  5093. probe_libc(){

  5094.     pfx=$1

  5095.     pfx_no_=${pfx%_}

  5096.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5097.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5098.         eval ${pfx}libc_type=uclibc

  5099.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5100.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5101.         eval ${pfx}libc_type=glibc

  5102.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5103.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5104.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5105.         eval ${pfx}libc_type=newlib

  5106.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5107.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5108.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5109.         eval ${pfx}libc_type=mingw64

  5110.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5111.             add_compat msvcrt/snprintf.o

  5112.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5113.         fi

  5114.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5115.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5116.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5117.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5118.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5119.         eval ${pfx}libc_type=mingw32

  5120.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5121.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5122.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5123.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5124.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  5125.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5126.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5127.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5128.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5129.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5130.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5131.         eval ${pfx}libc_type=msvcrt

  5132.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5133.             if [ "$pfx" = host_ ]; then

  5134.                 add_host_cppflags -Dsnprintf=_snprintf

  5135.             else

  5136.                 add_compat strtod.o strtod=avpriv_strtod

  5137.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5138.                                              _snprintf=avpriv_snprintf  \

  5139.                                              vsnprintf=avpriv_vsnprintf

  5140.             fi

  5141.         fi

  5142.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5143.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5144.         # 0x601 by default unless something else is set by the user.

  5145.         # This can easily lead to us detecting functions only present

  5146.         # in such new versions and producing binaries requiring windows 7.0.

  5147.         # Therefore explicitly set the default to XP unless the user has

  5148.         # set something else on the command line.

  5149.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5150.         # family. For these cases, configure is free to use any functions

  5151.         # found in the SDK headers by default. (Alternatively, we could force

  5152.         # _WIN32_WINNT to 0x0602 in that case.)

  5153.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5154.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5155. #ifdef WINAPI_FAMILY

  5156. #include <winapifamily.h>

  5157. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5158. #error not desktop

  5159. #endif

  5160. #endif

  5161. EOF

  5162.         if [ "$pfx" = "" ]; then

  5163.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5164.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5165.         fi

  5166.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5167.         eval ${pfx}libc_type=klibc

  5168.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5169.         eval ${pfx}libc_type=bionic

  5170.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5171.         eval ${pfx}libc_type=solaris

  5172.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5173.     fi

  5174.     check_${pfx}cc <<EOF

  5175. #include <time.h>

  5176. void *v = localtime_r;

  5177. EOF

  5178. 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

  5179. #include <time.h>

  5180. void *v = localtime_r;

  5181. EOF

  5182. 

  5183. }

  5184. 

  5185. probe_libc

  5186. test -n "$libc_type" && enable libc_$libc_type

  5187. probe_libc host_

  5188. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5189. 

  5190. case $libc_type in

  5191.     bionic)

  5192.         add_compat strtod.o strtod=avpriv_strtod

  5193.         ;;

  5194. esac

  5195. 

  5196. # hacks for compiler/libc/os combinations

  5197. 

  5198. if enabled_all tms470 libc_glibc; then

  5199.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5200.     add_cppflags -D__USER_LABEL_PREFIX__=

  5201.     add_cppflags -D__builtin_memset=memset

  5202.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5203.     add_cflags   -pds=48    # incompatible redefinition of macro

  5204. fi

  5205. 

  5206. if enabled_all ccc libc_glibc; then

  5207.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  5208. fi

  5209. 

  5210. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5211.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5212. 

  5213. esc(){

  5214.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5215. }

  5216. 

  5217. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  5218. 

  5219. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5220. 

  5221. set_default libdir

  5222. : ${shlibdir_default:="$libdir"}

  5223. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5224. 

  5225. set_default $PATHS_LIST

  5226. set_default nm

  5227. 

  5228. # we need to build at least one lib type

  5229. if ! enabled_any static shared; then

  5230.     cat <<EOF

  5231. At least one library type must be built.

  5232. Specify --enable-static to build the static libraries or --enable-shared to

  5233. build the shared libraries as well. To only build the shared libraries specify

  5234. --disable-static in addition to --enable-shared.

  5235. EOF

  5236.     exit 1

  5237. fi

  5238. 

  5239. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5240. 

  5241. enable_weak_pic() {

  5242.     disabled pic && return

  5243.     enable pic

  5244.     add_cppflags -DPIC

  5245.     case "$target_os" in

  5246.     mingw*|cygwin*)

  5247.         ;;

  5248.     *)

  5249.         add_cflags -fPIC

  5250.         ;;

  5251.     esac

  5252.     add_asflags  -fPIC

  5253. }

  5254. 

  5255. enabled pic && enable_weak_pic

  5256. 

  5257. check_cc <<EOF || die "Symbol mangling check failed."

  5258. int ff_extern;

  5259. EOF

  5260. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5261. extern_prefix=${sym%%ff_extern*}

  5262. 

  5263. check_cc <<EOF && enable_weak inline_asm

  5264. void foo(void) { __asm__ volatile ("" ::); }

  5265. EOF

  5266. 

  5267. _restrict=

  5268. for restrict_keyword in restrict __restrict__ __restrict; do

  5269.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5270. void foo(char * $restrict_keyword p);

  5271. EOF

  5272. done

  5273. 

  5274. check_cc <<EOF && enable pragma_deprecated

  5275. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5276. EOF

  5277. 

  5278. check_cc <<EOF && enable attribute_packed

  5279. struct { int x; } __attribute__((packed)) x;

  5280. EOF

  5281. 

  5282. check_cc <<EOF && enable attribute_may_alias

  5283. union { int x; } __attribute__((may_alias)) x;

  5284. EOF

  5285. 

  5286. check_cc <<EOF || die "endian test failed"

  5287. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5288. EOF

  5289. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5290. 

  5291. if ! enabled ppc64 || enabled bigendian; then

  5292.     disable vsx

  5293. fi

  5294. 

  5295. check_gas() {

  5296.     log "check_gas using '$as' as AS"

  5297.     # :vararg is used on aarch64, arm and ppc altivec

  5298.     check_as <<EOF || return 1

  5299. .macro m n, y:vararg=0

  5300. \n: .int \y

  5301. .endm

  5302. m x

  5303. EOF

  5304.     # .altmacro is only used in arm asm

  5305.     ! enabled arm || check_as <<EOF || return 1

  5306. .altmacro

  5307. EOF

  5308.     enable gnu_as

  5309.     return 0

  5310. }

  5311. 

  5312. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5313.     nogas=:

  5314.     enabled_any arm aarch64 && nogas=die

  5315.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5316.     as_noop=-v

  5317. 

  5318.     case $as_type in

  5319.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5320.         gcc)  gaspp_as_type=gas ;;

  5321.         *)    gaspp_as_type=$as_type ;;

  5322.     esac

  5323. 

  5324.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5325. 

  5326.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5327.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5328.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5329. 

  5330.     if ! check_gas ; then

  5331.         as=${gas:=$as}

  5332.         check_gas || \

  5333.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5334.     fi

  5335. 

  5336.     check_as <<EOF && enable as_func

  5337. .func test

  5338. .endfunc

  5339. EOF

  5340. fi

  5341. 

  5342. check_inline_asm inline_asm_labels '"1:\n"'

  5343. 

  5344. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5345. 

  5346. if enabled aarch64; then

  5347.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5348.     # internal assembler in clang 3.3 does not support this instruction

  5349.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5350.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5351. 

  5352.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5353. 

  5354. elif enabled alpha; then

  5355. 

  5356.     check_cflags -mieee

  5357. 

  5358. elif enabled arm; then

  5359. 

  5360.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5361. 

  5362.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5363. float func(float a, float b){ return a+b; }

  5364. EOF

  5365. 

  5366.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5367. 

  5368.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5369.         enable vfp_args

  5370.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5371.         enable vfp_args

  5372.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5373.         case "${cross_prefix:-$cc}" in

  5374.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5375.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5376. __asm__ (".eabi_attribute 28, 1");

  5377. int main(void) { return 0; }

  5378. EOF

  5379.         esac

  5380.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5381.     fi

  5382. 

  5383.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5384.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5385.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5386.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5387.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5388.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5389.     enabled setend  && check_insn setend  'setend be'

  5390. 

  5391.     [ $target_os = linux ] || [ $target_os = android ] ||

  5392.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5393.             $ARCH_EXT_LIST_ARM

  5394. 

  5395.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5396. 

  5397.     check_as <<EOF && enable as_dn_directive

  5398. ra .dn d0.i16

  5399. .unreq ra

  5400. EOF

  5401.     check_as <<EOF && enable as_fpu_directive

  5402. .fpu neon

  5403. EOF

  5404. 

  5405.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5406.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5407.         check_as <<EOF && enable as_object_arch

  5408. .object_arch armv4

  5409. EOF

  5410. 

  5411.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5412. 

  5413. elif enabled mips; then

  5414. 

  5415.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5416.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5417.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5418. 

  5419.     # Enable minimum ISA based on selected options

  5420.     if enabled mips64; then

  5421.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5422.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5423.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5424.     else

  5425.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5426.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5427.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5428.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5429.     fi

  5430. 

  5431.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5432.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5433.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5434.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5435.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5436. 

  5437.     if enabled bigendian && enabled msa; then

  5438.         disable msa

  5439.     fi

  5440. 

  5441. elif enabled parisc; then

  5442. 

  5443.     if enabled gcc; then

  5444.         case $($cc -dumpversion) in

  5445.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5446.         esac

  5447.     fi

  5448. 

  5449. elif enabled ppc; then

  5450. 

  5451.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5452. 

  5453.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5454.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5455.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5456.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5457. 

  5458.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5459.     if enabled altivec; then

  5460.         check_cflags -maltivec -mabi=altivec &&

  5461.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5462.         check_cflags -faltivec

  5463. 

  5464.         # check if our compiler supports Motorola AltiVec C API

  5465.         check_cc <<EOF || disable altivec

  5466. $inc_altivec_h

  5467. int main(void) {

  5468.     vector signed int v1 = (vector signed int) { 0 };

  5469.     vector signed int v2 = (vector signed int) { 1 };

  5470.     v1 = vec_add(v1, v2);

  5471.     return 0;

  5472. }

  5473. EOF

  5474. 

  5475.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5476.     fi

  5477. 

  5478.     if enabled vsx; then

  5479.         check_cflags -mvsx &&

  5480.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5481.     fi

  5482. 

  5483.     if enabled power8; then

  5484.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5485.     fi

  5486. 

  5487. elif enabled x86; then

  5488. 

  5489.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5490.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5491. 

  5492.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5493. 

  5494.     # check whether EBP is available on x86

  5495.     # As 'i' is stored on the stack, this program will crash

  5496.     # if the base pointer is used to access it because the

  5497.     # base pointer is cleared in the inline assembly code.

  5498.     check_exec_crash <<EOF && enable ebp_available

  5499. volatile int i=0;

  5500. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5501. return i;

  5502. EOF

  5503. 

  5504.     # check whether EBX is available on x86

  5505.     check_inline_asm ebx_available '""::"b"(0)' &&

  5506.         check_inline_asm ebx_available '"":::"%ebx"'

  5507. 

  5508.     # check whether xmm clobbers are supported

  5509.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5510. 

  5511.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5512.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5513. 

  5514.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5515.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5516.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5517. 

  5518.     probe_x86asm(){

  5519.         x86asmexe_probe=$1

  5520.         if check_cmd $x86asmexe_probe -v; then

  5521.             x86asmexe=$x86asmexe_probe

  5522.             x86asm_type=nasm

  5523.             x86asm_debug="-g -F dwarf"

  5524.         elif check_cmd $x86asmexe_probe --version; then

  5525.             x86asmexe=$x86asmexe_probe

  5526.             x86asm_type=yasm

  5527.             x86asm_debug="-g dwarf2"

  5528.         fi

  5529.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5530.     }

  5531. 

  5532.     if ! disabled_any asm mmx x86asm; then

  5533.         disable x86asm

  5534.         for program in $x86asmexe nasm yasm; do

  5535.             probe_x86asm $program && break

  5536.         done

  5537.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5538.         test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5539.         test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5540.         X86ASMFLAGS="-f $objformat"

  5541.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5542.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5543.         case "$objformat" in

  5544.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5545.         esac

  5546. 

  5547.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5548.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5549.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5550.         check_x86asm "CPU amdnop" || disable cpunop

  5551.     fi

  5552. 

  5553.     case "$cpu" in

  5554.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5555.             disable fast_clz

  5556.         ;;

  5557.     esac

  5558. 

  5559. fi

  5560. 

  5561. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5562. 

  5563. check_ldflags -Wl,--as-needed

  5564. check_ldflags -Wl,-z,noexecstack

  5565. 

  5566. if check_func dlopen && check_func dlsym; then

  5567.     ldl=

  5568. elif check_func dlopen -ldl && check_func dlsym -ldl; then

  5569.     ldl=-ldl

  5570. fi

  5571. 

  5572. avisynth_demuxer_extralibs='$ldl'

  5573. cuda_extralibs='$ldl'

  5574. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5575. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5576. libndi_newtek_outdev_extralibs="$libndi_newtek_outdev_extralibs $ldl"

  5577. libndi_newtek_indev_extralibs="$libndi_newtek_indev_extralibs $ldl"

  5578. frei0r_filter_extralibs='$ldl'

  5579. frei0r_src_filter_extralibs='$ldl'

  5580. ladspa_filter_extralibs='$ldl'

  5581. nvenc_extralibs='$ldl'

  5582. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5583. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5584. 

  5585. if ! disabled network; then

  5586.     check_func getaddrinfo $network_extralibs

  5587.     check_func inet_aton $network_extralibs

  5588. 

  5589.     check_type netdb.h "struct addrinfo"

  5590.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5591.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5592.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5593.     check_type poll.h "struct pollfd"

  5594.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5595.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5596.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5597.     check_type netinet/in.h "struct sockaddr_in6"

  5598.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5599.     check_type "sys/types.h sys/socket.h" socklen_t

  5600. 

  5601.     # Prefer arpa/inet.h over winsock2

  5602.     if check_header arpa/inet.h ; then

  5603.         check_func closesocket

  5604.     elif check_header winsock2.h ; then

  5605.         check_func_headers winsock2.h closesocket -lws2 &&

  5606.             network_extralibs="-lws2" ||

  5607.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5608.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5609.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5610. 

  5611.         check_type ws2tcpip.h socklen_t

  5612.         check_type ws2tcpip.h "struct addrinfo"

  5613.         check_type ws2tcpip.h "struct group_source_req"

  5614.         check_type ws2tcpip.h "struct ip_mreq_source"

  5615.         check_type ws2tcpip.h "struct ipv6_mreq"

  5616.         check_type winsock2.h "struct pollfd"

  5617.         check_struct winsock2.h "struct sockaddr" sa_len

  5618.         check_type ws2tcpip.h "struct sockaddr_in6"

  5619.         check_type ws2tcpip.h "struct sockaddr_storage"

  5620.     else

  5621.         disable network

  5622.     fi

  5623. fi

  5624. 

  5625. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5626. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5627. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5628. check_builtin sarestart signal.h "SA_RESTART"

  5629. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5630. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5631. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5632. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5633. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5634. 

  5635. case "$custom_allocator" in

  5636.     jemalloc)

  5637.         # jemalloc by default does not use a prefix

  5638.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5639.     ;;

  5640.     tcmalloc)

  5641.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5642.         malloc_prefix=tc_

  5643.     ;;

  5644. esac

  5645. 

  5646. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5647. check_func  ${malloc_prefix}memalign            && enable memalign

  5648. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5649. 

  5650. check_func  access

  5651. check_func_headers stdlib.h arc4random

  5652. check_func_headers time.h clock_gettime ||

  5653.     { check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }

  5654. check_func  fcntl

  5655. check_func  fork

  5656. check_func  gethrtime

  5657. check_func  getopt

  5658. check_func  getrusage

  5659. check_func  gettimeofday

  5660. check_func  isatty

  5661. check_func  mach_absolute_time

  5662. check_func  mkstemp

  5663. check_func  mmap

  5664. check_func  mprotect

  5665. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5666. check_func_headers time.h nanosleep ||

  5667.     { check_lib nanosleep time.h nanosleep -lrt && LIBRT="-lrt"; }

  5668. check_func  sched_getaffinity

  5669. check_func  setrlimit

  5670. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5671. check_func  strerror_r

  5672. check_func  sysconf

  5673. check_func  sysctl

  5674. check_func  usleep

  5675. 

  5676. check_func_headers conio.h kbhit

  5677. check_func_headers io.h setmode

  5678. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5679. check_func_headers stdlib.h getenv

  5680. check_func_headers sys/stat.h lstat

  5681. 

  5682. check_func_headers windows.h GetProcessAffinityMask

  5683. check_func_headers windows.h GetProcessTimes

  5684. check_func_headers windows.h GetSystemTimeAsFileTime

  5685. check_func_headers windows.h LoadLibrary

  5686. check_func_headers windows.h MapViewOfFile

  5687. check_func_headers windows.h PeekNamedPipe

  5688. check_func_headers windows.h SetConsoleTextAttribute

  5689. check_func_headers windows.h SetConsoleCtrlHandler

  5690. check_func_headers windows.h Sleep

  5691. check_func_headers windows.h VirtualAlloc

  5692. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5693. check_func_headers glob.h glob

  5694. enabled xlib &&

  5695.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5696. 

  5697. check_header AudioToolbox/AudioToolbox.h

  5698. check_header d3d11.h

  5699. check_header direct.h

  5700. check_header dirent.h

  5701. check_header dlfcn.h

  5702. check_header dxgidebug.h

  5703. check_header dxva.h

  5704. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5705. check_header io.h

  5706. check_header libcrystalhd/libcrystalhd_if.h

  5707. check_header mach/mach_time.h

  5708. check_header malloc.h

  5709. check_header net/udplite.h

  5710. check_header poll.h

  5711. check_header sys/mman.h

  5712. check_header sys/param.h

  5713. check_header sys/resource.h

  5714. check_header sys/select.h

  5715. check_header sys/time.h

  5716. check_header sys/un.h

  5717. check_header termios.h

  5718. check_header unistd.h

  5719. check_header valgrind/valgrind.h

  5720. check_header VideoDecodeAcceleration/VDADecoder.h

  5721. check_header VideoToolbox/VideoToolbox.h

  5722. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5723. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5724. check_header windows.h

  5725. check_header X11/extensions/XvMClib.h

  5726. check_header asm/types.h

  5727. 

  5728. # it seems there are versions of clang in some distros that try to use the

  5729. # gcc headers, which explodes for stdatomic

  5730. # so we also check that atomics actually work here

  5731. check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5732. 

  5733. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5734. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5735. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5736. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5737. 

  5738. check_lib coreservices "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5739. 

  5740. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5741. 

  5742. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5743. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5744. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5745. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5746. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5747. 

  5748. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5749. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5750. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5751. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5752. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5753. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5754. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5755. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5756. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5757. 

  5758. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5759. 

  5760. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5761. 

  5762. if ! disabled w32threads && ! enabled pthreads; then

  5763.     check_func_headers "windows.h process.h" _beginthreadex &&

  5764.         enable w32threads || disable w32threads

  5765.     if ! enabled w32threads && enabled winrt; then

  5766.         check_func_headers "windows.h" CreateThread &&

  5767.             enable w32threads || disable w32threads

  5768.     fi

  5769. fi

  5770. 

  5771. # check for some common methods of building with pthread support

  5772. # do this before the optional library checks as some of them require pthreads

  5773. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5774.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5775.        check_lib pthreads pthread.h pthread_create -pthread; then

  5776.         add_cflags -pthread

  5777.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5778.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5779.         add_cflags -pthreads

  5780.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5781.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5782.         add_cflags -ldl -pthread

  5783.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5784.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5785.         :

  5786.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5787.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5788.         :

  5789.     elif check_func pthread_join && check_func pthread_create; then

  5790.         enable pthreads

  5791.     fi

  5792.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5793. fi

  5794. 

  5795. 

  5796. if enabled pthreads; then

  5797.   check_func pthread_cancel

  5798. fi

  5799. 

  5800. enabled pthreads &&

  5801.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

  5802. 

  5803. disabled  zlib || check_lib zlib   zlib.h      zlibVersion    -lz

  5804. disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5805. disabled  lzma || check_lib lzma   lzma.h lzma_version_number -llzma

  5806. 

  5807. check_lib libm math.h sin -lm && LIBM="-lm"

  5808. disabled crystalhd || check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  5809. 

  5810. atan2f_args=2

  5811. copysign_args=2

  5812. hypot_args=2

  5813. ldexpf_args=2

  5814. powf_args=2

  5815. 

  5816. for func in $MATH_FUNCS; do

  5817.     eval check_mathfunc $func \${${func}_args:-1} $LIBM

  5818. done

  5819. 

  5820. for func in $COMPLEX_FUNCS; do

  5821.     eval check_complexfunc $func \${${func}_args:-1}

  5822. done

  5823. 

  5824. # these are off by default, so fail if requested and not available

  5825. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5826. enabled avfoundation_indev && { check_lib avfoundation_indev CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5827.                                 check_lib avfoundation_indev ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5828. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5829. enabled cuvid             && { enabled cuda ||

  5830.                                die "ERROR: CUVID requires CUDA"; }

  5831. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5832. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5833. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5834. enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&

  5835.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5836. enabled libndi_newtek     && { check_header Processing.NDI.Lib.h || die "ERROR: Processing.NDI.Lib.h header not found"; }

  5837. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5838. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5839. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5840. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5841. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5842. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5843. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5844. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5845. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5846. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5847.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5848.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5849. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5850. enabled libdc1394         && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new

  5851. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5852.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5853.                                  warn "using libfdk without pkg-config"; } }

  5854. 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"

  5855. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5856. enabled fontconfig        && enable libfontconfig

  5857. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5858. enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5859. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5860. enabled libgme            && { use_pkg_config libgme gme/gme.h gme_new_emu ||

  5861.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5862. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5863.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5864.                                done || die "ERROR: libgsm not found"; }

  5865. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5866. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5867. # While it may appear that require is being used as a pkg-config

  5868. # fallback for libmfx, it is actually being used to detect a different

  5869. # installation route altogether.  If libmfx is installed via the Intel

  5870. # Media SDK or Intel Media Server Studio, these don't come with

  5871. # pkg-config support.  Instead, users should make sure that the build

  5872. # can find the libraries and headers through other means.

  5873. enabled libmfx            && { use_pkg_config libmfx "mfx/mfxvideo.h" MFXInit ||

  5874.                                { require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }

  5875. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5876. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5877. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa

  5878. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5879.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5880.                                die "ERROR: libnpp not found"; }

  5881. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5882. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5883. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5884.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5885.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5886.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5887. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5888. enabled libopenjpeg       && { { check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5889.                                check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 ||

  5890.                                { check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5891.                                check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||

  5892.                                { check_lib libopenjpeg openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5893.                                { check_lib libopenjpeg openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5894.                                { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5895.                                die "ERROR: libopenjpeg not found"; }

  5896. enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create

  5897. enabled libopus           && {

  5898.     enabled libopus_decoder && {

  5899.         require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5900.     }

  5901.     enabled libopus_encoder && {

  5902.         require_pkg_config opus opus_multistream.h opus_multistream_surround_encoder_create

  5903.     }

  5904. }

  5905. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5906. enabled librsvg           && require_pkg_config librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5907. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5908. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5909. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5910. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5911.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5912. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy

  5913. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5914. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5915. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5916. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5917. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5918. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5919.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5920.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5921. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5922. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5923. enabled libvmaf           && require_pkg_config libvmaf libvmaf.h compute_vmaf

  5924. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5925. enabled libvorbis         && require_pkg_config vorbis vorbis/codec.h vorbis_info_init &&

  5926.                              require_pkg_config vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  5927. 

  5928. enabled libvpx            && {

  5929.     enabled libvpx_vp8_decoder && {

  5930.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5931.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5932.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5933.     }

  5934.     enabled libvpx_vp8_encoder && {

  5935.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5936.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5937.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5938.     }

  5939.     enabled libvpx_vp9_decoder && {

  5940.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5941.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx

  5942.     }

  5943.     enabled libvpx_vp9_encoder && {

  5944.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5945.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx

  5946.     }

  5947.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5948.         die "libvpx enabled but no supported decoders found"

  5949.     fi

  5950. }

  5951. 

  5952. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5953. enabled libwebp           && {

  5954.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5955.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5956. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5957.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5958.                                  warn "using libx264 without pkg-config"; } } &&

  5959.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5960.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5961.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5962.                                enable libx262; }

  5963. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5964.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5965.                                die "ERROR: libx265 version must be >= 68."; }

  5966. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs

  5967. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5968. enabled libzimg           && require_pkg_config "zimg >= 2.3.0" zimg.h zimg_get_api_version

  5969. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5970. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5971.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5972.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5973. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5974. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5975.                                { ! enabled cross_compile &&

  5976.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5977.                                  add_ldflags -L/opt/vc/lib/ &&

  5978.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5979.                                die "ERROR: mmal not found" &&

  5980.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5981. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5982.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5983.                                die "ERROR: openal not found"; } &&

  5984.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5985.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5986. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5987.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5988.                                die "ERROR: opencl not found"; } &&

  5989.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5990.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5991.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5992. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  5993.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5994.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5995.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5996.                                die "ERROR: opengl not found."

  5997.                              }

  5998. enabled omx_rpi           && { check_header OMX_Core.h ||

  5999.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  6000.                                die "ERROR: OpenMAX IL headers not found"; }

  6001. enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }

  6002. enabled openssl           && { use_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||

  6003.                                use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  6004.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  6005.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  6006.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  6007.                                die "ERROR: openssl not found"; }

  6008. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  6009. 

  6010. if enabled gcrypt; then

  6011.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6012.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6013.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6014.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6015.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6016.             die "ERROR: gcrypt not found"

  6017.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_extralibs

  6018.     else

  6019.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6020.     fi

  6021. fi

  6022. 

  6023. disabled sdl && disable sdl2

  6024. if ! disabled sdl2; then

  6025.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6026.     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then

  6027.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6028.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6029.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  6030.     else

  6031.       if "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6032.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6033.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6034.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6035.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6036.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  6037.       fi

  6038.     fi

  6039.     if test $target_os = "mingw32"; then

  6040.         sdl2_extralibs="$sdl2_extralibs -mconsole"

  6041.     fi

  6042. fi

  6043. enabled sdl2 && enable sdl && add_cflags $sdl2_cflags && add_extralibs $sdl2_extralibs

  6044. 

  6045. if enabled decklink; then

  6046.     case $target_os in

  6047.         mingw32*|mingw64*|win32|win64)

  6048.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6049.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6050.             ;;

  6051.     esac

  6052. fi

  6053. 

  6054. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6055.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security"; }

  6056. 

  6057. disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6058.                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }

  6059. 

  6060. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6061. enabled makeinfo \

  6062.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6063.     && enable makeinfo_html || disable makeinfo_html

  6064. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6065. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6066. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6067. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6068. 

  6069. check_header linux/fb.h

  6070. check_header linux/videodev.h

  6071. check_header linux/videodev2.h

  6072. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6073. 

  6074. check_header sys/videoio.h

  6075. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6076. 

  6077. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6078. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6079. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6080. # w32api 3.12 had it defined wrong

  6081. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6082. 

  6083. check_type "dshow.h" IBaseFilter

  6084. 

  6085. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6086. { check_header dev/bktr/ioctl_meteor.h &&

  6087.   check_header dev/bktr/ioctl_bt848.h; } ||

  6088. { check_header machine/ioctl_meteor.h &&

  6089.   check_header machine/ioctl_bt848.h; } ||

  6090. { check_header dev/video/meteor/ioctl_meteor.h &&

  6091.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  6092. check_header dev/ic/bt8xx.h

  6093. 

  6094. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6095.     enable_safe sys/soundcard.h

  6096. else

  6097.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  6098.     #include <sys/soundcard.h>

  6099.     audio_buf_info abc;

  6100. EOF

  6101. fi

  6102. check_header soundcard.h

  6103. 

  6104. enabled_any alsa_indev alsa_outdev &&

  6105.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6106. 

  6107. enabled jack_indev && check_lib jack jack/jack.h jack_client_open -ljack &&

  6108.     check_func jack_port_get_latency_range -ljack

  6109. 

  6110. enabled_any sndio_indev sndio_outdev && check_lib sndio sndio.h sio_open -lsndio

  6111. 

  6112. if enabled libcdio; then

  6113.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6114.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6115.     die "ERROR: No usable libcdio/cdparanoia found"

  6116. fi

  6117. 

  6118. if ! disabled libxcb; then

  6119.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  6120.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  6121.     } && enable libxcb

  6122. 

  6123. if enabled libxcb; then

  6124.     disabled libxcb_shm || {

  6125.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  6126.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  6127.         } && check_header sys/shm.h && enable libxcb_shm; }

  6128. 

  6129.     disabled libxcb_xfixes || {

  6130.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  6131.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  6132.         } && enable libxcb_xfixes; }

  6133. 

  6134.     disabled libxcb_shape || {

  6135.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  6136.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  6137.         } && enable libxcb_shape; }

  6138. 

  6139.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  6140.     add_extralibs $xcb_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs $xcb_shape_extralibs

  6141. fi

  6142. fi

  6143. 

  6144. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6145. 

  6146. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6147. # the desktop api partition

  6148. check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6149. #ifdef WINAPI_FAMILY

  6150. #include <winapifamily.h>

  6151. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6152. #error desktop, not uwp

  6153. #else

  6154. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6155. #endif

  6156. #else

  6157. #error no family set

  6158. #endif

  6159. EOF

  6160. 

  6161. enabled vaapi &&

  6162.     check_lib vaapi va/va.h vaInitialize -lva

  6163. 

  6164. enabled vaapi &&

  6165.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6166.     disable vaapi

  6167. 

  6168. enabled vaapi &&

  6169.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6170. 

  6171. enabled vaapi &&

  6172.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6173. 

  6174. enabled vdpau &&

  6175.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6176.     disable vdpau

  6177. 

  6178. enabled vdpau &&

  6179.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6180. 

  6181. if enabled x86; then

  6182.     case $target_os in

  6183.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6184.             ;;

  6185.         *)

  6186.             disable cuda cuvid nvenc

  6187.             ;;

  6188.     esac

  6189. else

  6190.     disable cuda cuvid nvenc

  6191. fi

  6192. 

  6193. enabled nvenc &&

  6194.     check_cc -I$source_path <<EOF || disable nvenc

  6195. #include "compat/nvenc/nvEncodeAPI.h"

  6196. NV_ENCODE_API_FUNCTION_LIST flist;

  6197. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6198. int main(void) { return 0; }

  6199. EOF

  6200. 

  6201. # Funny iconv installations are not unusual, so check it after all flags have been set

  6202. disabled iconv || check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6203. 

  6204. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6205. 

  6206. # add some useful compiler flags if supported

  6207. check_cflags -Wdeclaration-after-statement

  6208. check_cflags -Wall

  6209. check_cflags -Wdisabled-optimization

  6210. check_cflags -Wpointer-arith

  6211. check_cflags -Wredundant-decls

  6212. check_cflags -Wwrite-strings

  6213. check_cflags -Wtype-limits

  6214. check_cflags -Wundef

  6215. check_cflags -Wmissing-prototypes

  6216. check_cflags -Wno-pointer-to-int-cast

  6217. check_cflags -Wstrict-prototypes

  6218. check_cflags -Wempty-body

  6219. 

  6220. if enabled extra_warnings; then

  6221.     check_cflags -Wcast-qual

  6222.     check_cflags -Wextra

  6223.     check_cflags -Wpedantic

  6224. fi

  6225. 

  6226. check_disable_warning(){

  6227.     warning_flag=-W${1#-Wno-}

  6228.     test_cflags $warning_flag && add_cflags $1

  6229. }

  6230. 

  6231. check_disable_warning -Wno-parentheses

  6232. check_disable_warning -Wno-switch

  6233. check_disable_warning -Wno-format-zero-length

  6234. check_disable_warning -Wno-pointer-sign

  6235. check_disable_warning -Wno-unused-const-variable

  6236. 

  6237. check_disable_warning_headers(){

  6238.     warning_flag=-W${1#-Wno-}

  6239.     test_cflags $warning_flag && add_cflags_headers $1

  6240. }

  6241. 

  6242. check_disable_warning_headers -Wno-deprecated-declarations

  6243. check_disable_warning_headers -Wno-unused-variable

  6244. 

  6245. check_cc <<EOF && enable blocks_extension

  6246. void (^block)(void);

  6247. EOF

  6248. 

  6249. # add some linker flags

  6250. check_ldflags -Wl,--warn-common

  6251. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6252. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6253. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6254. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6255. 

  6256. # add some strip flags

  6257. check_stripflags -x

  6258. 

  6259. enabled neon_clobber_test &&

  6260.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6261.                   -Wl,--wrap,avcodec_decode_audio4      \

  6262.                   -Wl,--wrap,avcodec_decode_video2      \

  6263.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6264.                   -Wl,--wrap,avcodec_encode_audio2      \

  6265.                   -Wl,--wrap,avcodec_encode_video2      \

  6266.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6267.                   -Wl,--wrap,avcodec_send_packet        \

  6268.                   -Wl,--wrap,avcodec_receive_packet     \

  6269.                   -Wl,--wrap,avcodec_send_frame         \

  6270.                   -Wl,--wrap,avcodec_receive_frame      \

  6271.                   -Wl,--wrap,swr_convert                \

  6272.                   -Wl,--wrap,avresample_convert ||

  6273.     disable neon_clobber_test

  6274. 

  6275. enabled xmm_clobber_test &&

  6276.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6277.                   -Wl,--wrap,avcodec_decode_audio4      \

  6278.                   -Wl,--wrap,avcodec_decode_video2      \

  6279.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6280.                   -Wl,--wrap,avcodec_encode_audio2      \

  6281.                   -Wl,--wrap,avcodec_encode_video2      \

  6282.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6283.                   -Wl,--wrap,avcodec_send_packet        \

  6284.                   -Wl,--wrap,avcodec_receive_packet     \

  6285.                   -Wl,--wrap,avcodec_send_frame         \

  6286.                   -Wl,--wrap,avcodec_receive_frame      \

  6287.                   -Wl,--wrap,swr_convert                \

  6288.                   -Wl,--wrap,avresample_convert         \

  6289.                   -Wl,--wrap,sws_scale ||

  6290.     disable xmm_clobber_test

  6291. 

  6292. check_ld "cc" <<EOF && enable proper_dce

  6293. extern const int array[512];

  6294. static inline int func(void) { return array[0]; }

  6295. int main(void) { return 0; }

  6296. EOF

  6297. 

  6298. if enabled proper_dce; then

  6299.     echo "X { local: *; };" > $TMPV

  6300.     if test_ldflags -Wl,${version_script},$TMPV; then

  6301.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6302.         check_cc <<EOF && enable symver_asm_label

  6303. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6304. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6305. EOF

  6306.         check_cc <<EOF && enable symver_gnu_asm

  6307. __asm__(".symver ff_foo,av_foo@VERSION");

  6308. void ff_foo(void) {}

  6309. EOF

  6310.     fi

  6311. fi

  6312. 

  6313. if [ -z "$optflags" ]; then

  6314.     if enabled small; then

  6315.         optflags=$cflags_size

  6316.     elif enabled optimizations; then

  6317.         optflags=$cflags_speed

  6318.     else

  6319.         optflags=$cflags_noopt

  6320.     fi

  6321. fi

  6322. 

  6323. if [ -z "$nvccflags" ]; then

  6324.     nvccflags=$nvccflags_default

  6325. fi

  6326. 

  6327. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6328.     nvccflags="$nvccflags -m64"

  6329. else

  6330.     nvccflags="$nvccflags -m32"

  6331. fi

  6332. 

  6333. check_optflags(){

  6334.     check_cflags "$@"

  6335.     enabled lto && check_ldflags "$@"

  6336. }

  6337. 

  6338. check_optflags $optflags

  6339. check_optflags -fno-math-errno

  6340. check_optflags -fno-signed-zeros

  6341. 

  6342. if enabled lto; then

  6343.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6344.     check_cflags  -flto

  6345.     check_ldflags -flto $cpuflags

  6346.     disable inline_asm_direct_symbol_refs

  6347. fi

  6348. 

  6349. enabled ftrapv && check_cflags -ftrapv

  6350. 

  6351. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6352. int x;

  6353. EOF

  6354. 

  6355. 

  6356. if enabled icc; then

  6357.     # Just warnings, no remarks

  6358.     check_cflags -w1

  6359.     # -wd: Disable following warnings

  6360.     # 144, 167, 556: -Wno-pointer-sign

  6361.     # 188: enumerated type mixed with another type

  6362.     # 1292: attribute "foo" ignored

  6363.     # 1419: external declaration in primary source file

  6364.     # 10006: ignoring unknown option -fno-signed-zeros

  6365.     # 10148: ignoring unknown option -Wno-parentheses

  6366.     # 10156: ignoring option '-W'; no argument required

  6367.     # 13200: No EMMS instruction before call to function

  6368.     # 13203: No EMMS instruction before return from function

  6369.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6370.     # 11030: Warning unknown option --as-needed

  6371.     # 10156: ignoring option '-export'; no argument required

  6372.     check_ldflags -wd10156,11030

  6373.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6374.     enable ebp_available

  6375.     # The test above does not test linking

  6376.     enabled lto && disable symver_asm_label

  6377.     if enabled x86_32; then

  6378.         icc_version=$($cc -dumpversion)

  6379.         test ${icc_version%%.*} -ge 11 &&

  6380.             check_cflags -falign-stack=maintain-16-byte ||

  6381.             disable aligned_stack

  6382.     fi

  6383. elif enabled ccc; then

  6384.     # disable some annoying warnings

  6385.     add_cflags -msg_disable bitnotint

  6386.     add_cflags -msg_disable mixfuncvoid

  6387.     add_cflags -msg_disable nonstandcast

  6388.     add_cflags -msg_disable unsupieee

  6389. elif enabled gcc; then

  6390.     check_optflags -fno-tree-vectorize

  6391.     check_cflags -Werror=format-security

  6392.     check_cflags -Werror=implicit-function-declaration

  6393.     check_cflags -Werror=missing-prototypes

  6394.     check_cflags -Werror=return-type

  6395.     check_cflags -Werror=vla

  6396.     check_cflags -Wformat

  6397.     check_cflags -fdiagnostics-color=auto

  6398.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6399. elif enabled llvm_gcc; then

  6400.     check_cflags -mllvm -stack-alignment=16

  6401. elif enabled clang; then

  6402.     check_cflags -mllvm -stack-alignment=16

  6403.     check_cflags -mstack-alignment=16

  6404.     check_cflags -Qunused-arguments

  6405.     check_cflags -Werror=implicit-function-declaration

  6406.     check_cflags -Werror=missing-prototypes

  6407.     check_cflags -Werror=return-type

  6408. elif enabled cparser; then

  6409.     add_cflags -Wno-missing-variable-declarations

  6410.     add_cflags -Wno-empty-statement

  6411. elif enabled armcc; then

  6412.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6413.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6414.     # 2523: use of inline assembly is deprecated

  6415.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6416.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6417.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6418.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6419.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6420.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6421. elif enabled tms470; then

  6422.     add_cflags -pds=824 -pds=837

  6423.     disable inline_asm

  6424. elif enabled pathscale; then

  6425.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6426. elif enabled_any msvc icl; then

  6427.     enabled x86_32 && disable aligned_stack

  6428.     enabled_all x86_32 debug && add_cflags -Oy-

  6429.     enabled debug && add_ldflags -debug

  6430.     enable pragma_deprecated

  6431.     if enabled icl; then

  6432.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6433.         # (correctly) on icl 13.x.

  6434.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6435.             add_cflags -Qansi-alias

  6436.         # Some inline asm is not compilable in debug

  6437.         if enabled debug; then

  6438.             disable ebp_available

  6439.             disable ebx_available

  6440.         fi

  6441.     fi

  6442.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6443.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6444.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6445.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6446.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6447.     # MSVC 2013 and newer can handle it fine.

  6448.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6449.     # happens in config.h.

  6450.     if [ $_restrict != restrict ]; then

  6451.         check_cc <<EOF || add_cflags -FIstdlib.h

  6452. __declspec($_restrict) void* foo(int);

  6453. EOF

  6454.     fi

  6455.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6456.     # Issue has been fixed in MSVC v19.00.24218.

  6457.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6458.         check_cflags -d2SSAOptimizer-

  6459.     # enable utf-8 source processing on VS2015 U2 and newer

  6460.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6461.         add_cflags -utf-8

  6462. fi

  6463. 

  6464. for pfx in "" host_; do

  6465.     varname=${pfx%_}cc_type

  6466.     eval "type=\$$varname"

  6467.     if [ "$type" = "msvc" ]; then

  6468.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6469. static inline int foo(int a) { return a; }

  6470. EOF

  6471.     fi

  6472. done

  6473. 

  6474. case $as_type in

  6475.     clang)

  6476.         add_asflags -Qunused-arguments

  6477.     ;;

  6478. esac

  6479. 

  6480. case $ld_type in

  6481.     clang)

  6482.         check_ldflags -Qunused-arguments

  6483.     ;;

  6484. esac

  6485. 

  6486. case $target_os in

  6487.     osf1)

  6488.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6489.     ;;

  6490. esac

  6491. 

  6492. enable frame_thread_encoder

  6493. 

  6494. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6495. 

  6496. check_deps $CONFIG_LIST       \

  6497.            $CONFIG_EXTRA      \

  6498.            $HAVE_LIST         \

  6499.            $ALL_COMPONENTS    \

  6500. 

  6501. 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"

  6502. 

  6503. 

  6504. if test $target_os = "haiku"; then

  6505.     disable memalign

  6506.     disable posix_memalign

  6507. fi

  6508. 

  6509. # add_dep lib dep

  6510. # -> enable ${lib}_deps_${dep}

  6511. # -> add $dep to ${lib}_deps only once

  6512. add_dep() {

  6513.     lib=$1

  6514.     dep=$2

  6515.     enabled "${lib}_deps_${dep}" && return 0

  6516.     enable  "${lib}_deps_${dep}"

  6517.     prepend "${lib}_deps" $dep

  6518. }

  6519. 

  6520. # merge deps lib components

  6521. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6522. merge_deps() {

  6523.     lib=$1

  6524.     shift

  6525.     for comp in $*; do

  6526.         enabled $comp || continue

  6527.         eval "dep=\"\$${comp}_deps\""

  6528.         for d in $dep; do

  6529.             add_dep $lib $d

  6530.         done

  6531.     done

  6532. }

  6533. 

  6534. merge_deps libavfilter $FILTER_LIST

  6535. 

  6536. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6537. 

  6538. for thread in $THREADS_LIST; do

  6539.     if enabled $thread; then

  6540.         test -n "$thread_type" &&

  6541.             die "ERROR: Only one thread type must be selected." ||

  6542.             thread_type="$thread"

  6543.     fi

  6544. done

  6545. 

  6546. if disabled stdatomic_h; then

  6547.     if enabled atomics_gcc; then

  6548.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6549.     elif enabled atomics_win32; then

  6550.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6551.     elif enabled atomics_suncc; then

  6552.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6553.     elif enabled pthreads; then

  6554.         add_compat atomics/pthread/stdatomic.o

  6555.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6556.     else

  6557.         enabled threads && die "Threading is enabled, but no atomics are available"

  6558.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6559.     fi

  6560. fi

  6561. 

  6562. # Check if requested libraries were found.

  6563. for lib in $AUTODETECT_LIBS; do

  6564.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6565. done

  6566. 

  6567. enabled zlib && add_cppflags -DZLIB_CONST

  6568. 

  6569. # conditional library dependencies, in linking order

  6570. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6571. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6572. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6573. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6574. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6575. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6576. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6577. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6578. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6579. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6580. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6581. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6582. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6583. enabled pan_filter          && prepend avfilter_deps "swresample"

  6584. enabled pp_filter           && prepend avfilter_deps "postproc"

  6585. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6586. enabled resample_filter && prepend avfilter_deps "avresample"

  6587. enabled sab_filter          && prepend avfilter_deps "swscale"

  6588. enabled scale_filter    && prepend avfilter_deps "swscale"

  6589. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6590. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6591. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6592. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6593. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6594. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6595. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6596. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6597. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6598. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6599. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6600. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6601. 

  6602. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6603. 

  6604. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6605. 

  6606. expand_deps(){

  6607.     lib_deps=${1}_deps

  6608.     eval "deps=\$$lib_deps"

  6609.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6610.     unique $lib_deps

  6611. }

  6612. 

  6613. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6614. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6615. 

  6616. map 'expand_deps $v' $LIBRARY_LIST

  6617. 

  6618. license="LGPL version 2.1 or later"

  6619. if enabled nonfree; then

  6620.     license="nonfree and unredistributable"

  6621. elif enabled gplv3; then

  6622.     license="GPL version 3 or later"

  6623. elif enabled lgplv3; then

  6624.     license="LGPL version 3 or later"

  6625. elif enabled gpl; then

  6626.     license="GPL version 2 or later"

  6627. fi

  6628. 

  6629. if test "$quiet" != "yes"; then

  6630. 

  6631. echo "install prefix            $prefix"

  6632. echo "source path               $source_path"

  6633. echo "C compiler                $cc"

  6634. echo "C library                 $libc_type"

  6635. if test "$host_cc" != "$cc"; then

  6636.     echo "host C compiler           $host_cc"

  6637.     echo "host C library            $host_libc_type"

  6638. fi

  6639. echo "ARCH                      $arch ($cpu)"

  6640. if test "$build_suffix" != ""; then

  6641.     echo "build suffix              $build_suffix"

  6642. fi

  6643. if test "$progs_suffix" != ""; then

  6644.     echo "progs suffix              $progs_suffix"

  6645. fi

  6646. if test "$extra_version" != ""; then

  6647.     echo "version string suffix     $extra_version"

  6648. fi

  6649. echo "big-endian                ${bigendian-no}"

  6650. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6651. if enabled x86; then

  6652.     echo "standalone assembly       ${x86asm-no}"

  6653.     echo "x86 assembler             ${x86asmexe}"

  6654.     echo "MMX enabled               ${mmx-no}"

  6655.     echo "MMXEXT enabled            ${mmxext-no}"

  6656.     echo "3DNow! enabled            ${amd3dnow-no}"

  6657.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6658.     echo "SSE enabled               ${sse-no}"

  6659.     echo "SSSE3 enabled             ${ssse3-no}"

  6660.     echo "AESNI enabled             ${aesni-no}"

  6661.     echo "AVX enabled               ${avx-no}"

  6662.     echo "AVX2 enabled              ${avx2-no}"

  6663.     echo "XOP enabled               ${xop-no}"

  6664.     echo "FMA3 enabled              ${fma3-no}"

  6665.     echo "FMA4 enabled              ${fma4-no}"

  6666.     echo "i686 features enabled     ${i686-no}"

  6667.     echo "CMOV is fast              ${fast_cmov-no}"

  6668.     echo "EBX available             ${ebx_available-no}"

  6669.     echo "EBP available             ${ebp_available-no}"

  6670. fi

  6671. if enabled aarch64; then

  6672.     echo "NEON enabled              ${neon-no}"

  6673.     echo "VFP enabled               ${vfp-no}"

  6674. fi

  6675. if enabled arm; then

  6676.     echo "ARMv5TE enabled           ${armv5te-no}"

  6677.     echo "ARMv6 enabled             ${armv6-no}"

  6678.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6679.     echo "VFP enabled               ${vfp-no}"

  6680.     echo "NEON enabled              ${neon-no}"

  6681.     echo "THUMB enabled             ${thumb-no}"

  6682. fi

  6683. if enabled mips; then

  6684.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6685.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6686.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6687.     echo "MIPS MSA enabled          ${msa-no}"

  6688.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6689. fi

  6690. if enabled ppc; then

  6691.     echo "AltiVec enabled           ${altivec-no}"

  6692.     echo "VSX enabled               ${vsx-no}"

  6693.     echo "POWER8 enabled            ${power8-no}"

  6694.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6695.     echo "dcbzl available           ${dcbzl-no}"

  6696. fi

  6697. echo "debug symbols             ${debug-no}"

  6698. echo "strip symbols             ${stripping-no}"

  6699. echo "optimize for size         ${small-no}"

  6700. echo "optimizations             ${optimizations-no}"

  6701. echo "static                    ${static-no}"

  6702. echo "shared                    ${shared-no}"

  6703. echo "postprocessing support    ${postproc-no}"

  6704. echo "network support           ${network-no}"

  6705. echo "threading support         ${thread_type-no}"

  6706. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6707. echo "texi2html enabled         ${texi2html-no}"

  6708. echo "perl enabled              ${perl-no}"

  6709. echo "pod2man enabled           ${pod2man-no}"

  6710. echo "makeinfo enabled          ${makeinfo-no}"

  6711. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6712. test -n "$random_seed" &&

  6713.     echo "random seed               ${random_seed}"

  6714. echo

  6715. 

  6716. echo "External libraries:"

  6717. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6718. echo

  6719. 

  6720. echo "External libraries providing hardware acceleration:"

  6721. print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns

  6722. echo

  6723. 

  6724. echo "Libraries:"

  6725. print_enabled '' $LIBRARY_LIST | print_in_columns

  6726. echo

  6727. 

  6728. echo "Programs:"

  6729. print_enabled '' $PROGRAM_LIST | print_in_columns

  6730. echo

  6731. 

  6732. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6733.     echo "Enabled ${type}s:"

  6734.     eval list=\$$(toupper $type)_LIST

  6735.     print_enabled '_*' $list | print_in_columns

  6736.     echo

  6737. done

  6738. 

  6739. if test -n "$ignore_tests"; then

  6740.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6741.     echo "Ignored FATE tests:"

  6742.     echo $ignore_tests | print_in_columns

  6743.     echo

  6744. fi

  6745. 

  6746. echo "License: $license"

  6747. 

  6748. echo "Creating configuration files ..."

  6749. 

  6750. fi # test "$quiet" != "yes"

  6751. 

  6752. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6753. 

  6754. enabled stripping || strip="echo skipping strip"

  6755. 

  6756. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6757. 

  6758. cat > ffbuild/config.mak <<EOF

  6759. # Automatically generated by configure - do not modify!

  6760. ifndef FFMPEG_CONFIG_MAK

  6761. FFMPEG_CONFIG_MAK=1

  6762. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6763. prefix=$prefix

  6764. LIBDIR=\$(DESTDIR)$libdir

  6765. SHLIBDIR=\$(DESTDIR)$shlibdir

  6766. INCDIR=\$(DESTDIR)$incdir

  6767. BINDIR=\$(DESTDIR)$bindir

  6768. DATADIR=\$(DESTDIR)$datadir

  6769. DOCDIR=\$(DESTDIR)$docdir

  6770. MANDIR=\$(DESTDIR)$mandir

  6771. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6772. INSTALL_NAME_DIR=$install_name_dir

  6773. SRC_PATH=$source_path

  6774. SRC_LINK=$source_link

  6775. ifndef MAIN_MAKEFILE

  6776. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6777. endif

  6778. CC_IDENT=$cc_ident

  6779. ARCH=$arch

  6780. INTRINSICS=$intrinsics

  6781. CC=$cc

  6782. CXX=$cxx

  6783. AS=$as

  6784. OBJCC=$objcc

  6785. LD=$ld

  6786. DEPCC=$dep_cc

  6787. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6788. DEPAS=$as

  6789. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6790. X86ASM=$x86asmexe

  6791. DEPX86ASM=$x86asmexe

  6792. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6793. AR=$ar

  6794. ARFLAGS=$arflags

  6795. AR_O=$ar_o

  6796. RANLIB=$ranlib

  6797. STRIP=$strip

  6798. NVCC=$nvcc

  6799. CP=cp -p

  6800. LN_S=$ln_s

  6801. CPPFLAGS=$CPPFLAGS

  6802. CFLAGS=$CFLAGS

  6803. CXXFLAGS=$CXXFLAGS

  6804. OBJCFLAGS=$OBJCFLAGS

  6805. ASFLAGS=$ASFLAGS

  6806. NVCCFLAGS=$nvccflags

  6807. AS_C=$AS_C

  6808. AS_O=$AS_O

  6809. OBJCC_C=$OBJCC_C

  6810. OBJCC_E=$OBJCC_E

  6811. OBJCC_O=$OBJCC_O

  6812. CC_C=$CC_C

  6813. CC_E=$CC_E

  6814. CC_O=$CC_O

  6815. CXX_C=$CXX_C

  6816. CXX_O=$CXX_O

  6817. NVCC_C=$NVCC_C

  6818. NVCC_O=$NVCC_O

  6819. LD_O=$LD_O

  6820. X86ASM_O=$X86ASM_O

  6821. LD_LIB=$LD_LIB

  6822. LD_PATH=$LD_PATH

  6823. DLLTOOL=$dlltool

  6824. WINDRES=$windres

  6825. DEPWINDRES=$dep_cc

  6826. DOXYGEN=$doxygen

  6827. LDFLAGS=$LDFLAGS

  6828. LDEXEFLAGS=$LDEXEFLAGS

  6829. LDLIBFLAGS=$LDLIBFLAGS

  6830. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6831. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6832. X86ASMFLAGS=$X86ASMFLAGS

  6833. BUILDSUF=$build_suffix

  6834. PROGSSUF=$progs_suffix

  6835. FULLNAME=$FULLNAME

  6836. LIBPREF=$LIBPREF

  6837. LIBSUF=$LIBSUF

  6838. LIBNAME=$LIBNAME

  6839. SLIBPREF=$SLIBPREF

  6840. SLIBSUF=$SLIBSUF

  6841. EXESUF=$EXESUF

  6842. EXTRA_VERSION=$extra_version

  6843. CCDEP=$CCDEP

  6844. CXXDEP=$CXXDEP

  6845. CCDEP_FLAGS=$CCDEP_FLAGS

  6846. ASDEP=$ASDEP

  6847. ASDEP_FLAGS=$ASDEP_FLAGS

  6848. X86ASMDEP=$X86ASMDEP

  6849. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6850. CC_DEPFLAGS=$CC_DEPFLAGS

  6851. AS_DEPFLAGS=$AS_DEPFLAGS

  6852. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6853. HOSTCC=$host_cc

  6854. HOSTLD=$host_ld

  6855. HOSTCFLAGS=$host_cflags

  6856. HOSTCPPFLAGS=$host_cppflags

  6857. HOSTEXESUF=$HOSTEXESUF

  6858. HOSTLDFLAGS=$host_ldflags

  6859. HOSTEXTRALIBS=$host_extralibs

  6860. DEPHOSTCC=$host_cc

  6861. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6862. HOSTCCDEP=$HOSTCCDEP

  6863. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6864. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6865. HOSTCC_C=$HOSTCC_C

  6866. HOSTCC_O=$HOSTCC_O

  6867. HOSTLD_O=$HOSTLD_O

  6868. TARGET_EXEC=$target_exec $target_exec_args

  6869. TARGET_PATH=$target_path

  6870. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6871. CFLAGS-ffplay=${sdl2_cflags}

  6872. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6873. ZLIB=$($ldflags_filter -lz)

  6874. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6875. EXTRALIBS=$extralibs

  6876. COMPAT_OBJS=$compat_objs

  6877. INSTALL=$install

  6878. LIBTARGET=${LIBTARGET}

  6879. SLIBNAME=${SLIBNAME}

  6880. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6881. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6882. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6883. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6884. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6885. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6886. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6887. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6888. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6889. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6890. NOREDZONE_FLAGS=$noredzone_flags

  6891. LIBFUZZER_PATH=$libfuzzer_path

  6892. IGNORE_TESTS=$ignore_tests

  6893. EOF

  6894. 

  6895. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6896. 

  6897. print_program_extralibs(){

  6898.     eval "program_extralibs=\$${1}_extralibs"

  6899.     eval echo "EXTRALIBS-${1}=${program_extralibs}" >> ffbuild/config.mak

  6900. }

  6901. 

  6902. map 'print_program_extralibs $v' $PROGRAM_LIST

  6903. 

  6904. cat > $TMPH <<EOF

  6905. /* Automatically generated by configure - do not modify! */

  6906. #ifndef FFMPEG_CONFIG_H

  6907. #define FFMPEG_CONFIG_H

  6908. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6909. #define FFMPEG_LICENSE "$(c_escape $license)"

  6910. #define CONFIG_THIS_YEAR 2017

  6911. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6912. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6913. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6914. #define av_restrict $_restrict

  6915. #define EXTERN_PREFIX "${extern_prefix}"

  6916. #define EXTERN_ASM ${extern_prefix}

  6917. #define BUILDSUF "$build_suffix"

  6918. #define SLIBSUF "$SLIBSUF"

  6919. #define HAVE_MMX2 HAVE_MMXEXT

  6920. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6921. EOF

  6922. 

  6923. test -n "$assert_level" &&

  6924.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6925. 

  6926. test -n "$malloc_prefix" &&

  6927.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6928. 

  6929. if enabled x86asm; then

  6930.     append config_files $TMPASM

  6931.     printf '' >$TMPASM

  6932. fi

  6933. 

  6934. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6935. 

  6936. 

  6937. mkdir -p doc

  6938. mkdir -p tests

  6939. mkdir -p tests/api

  6940. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6941. 

  6942. print_config ARCH_   "$config_files" $ARCH_LIST

  6943. print_config HAVE_   "$config_files" $HAVE_LIST

  6944. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6945.                                      $CONFIG_EXTRA      \

  6946.                                      $ALL_COMPONENTS    \

  6947. 

  6948. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6949. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6950. 

  6951. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6952. cp_if_changed $TMPH config.h

  6953. touch ffbuild/.config

  6954. 

  6955. enabled x86asm && cp_if_changed $TMPASM config.asm

  6956. 

  6957. cat > $TMPH <<EOF

  6958. /* Generated by ffconf */

  6959. #ifndef AVUTIL_AVCONFIG_H

  6960. #define AVUTIL_AVCONFIG_H

  6961. EOF

  6962. 

  6963. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6964. 

  6965. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6966. 

  6967. cp_if_changed $TMPH libavutil/avconfig.h

  6968. 

  6969. # generate the lists of enabled components

  6970. print_enabled_components(){

  6971.     file=$1

  6972.     struct_name=$2

  6973.     name=$3

  6974.     shift 3

  6975.     echo "static const $struct_name *$name[] = {" > $TMPH

  6976.     for c in $*; do

  6977.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  6978.     done

  6979.     echo "    NULL };" >> $TMPH

  6980.     cp_if_changed $TMPH $file

  6981. }

  6982. 

  6983. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  6984. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  6985. 

  6986. if test -n "$WARNINGS"; then

  6987.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6988.     enabled fatal_warnings && exit 1

  6989. fi

  6990. 

  6991. # Settings for pkg-config files

  6992. 

  6993. cat > ffbuild/config.sh <<EOF

  6994. # Automatically generated by configure - do not modify!

  6995. shared=$shared

  6996. build_suffix=$build_suffix

  6997. prefix=$prefix

  6998. libdir=$libdir

  6999. incdir=$incdir

  7000. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7001. source_path=${source_path}

  7002. LIBPREF=${LIBPREF}

  7003. LIBSUF=${LIBSUF}

  7004. 

  7005. extralibs_avutil="$LIBRT $LIBM"

  7006. extralibs_avcodec="$extralibs"

  7007. extralibs_avformat="$extralibs"

  7008. extralibs_avdevice="$extralibs"

  7009. extralibs_avfilter="$extralibs"

  7010. extralibs_avresample="$LIBM"

  7011. extralibs_postproc=""

  7012. extralibs_swscale="$LIBM"

  7013. extralibs_swresample="$LIBM $LIBSOXR"

  7014. EOF

  7015. 

  7016. for lib in $LIBRARY_LIST; do

  7017.     lib_deps="$(eval echo \$${lib}_deps)"

  7018.     echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh

  7019. done