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

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

  261.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  277.   --disable-lzma           disable lzma [autodetect]

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

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

  280.   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]

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

  282.   --enable-opencl          enable OpenCL code

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

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

  285.                            if gnutls is not used [no]

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

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

  288.   --disable-sdl2           disable sdl2 [autodetect]

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

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

  291.   --disable-xlib           disable xlib [autodetect]

  292.   --disable-zlib           disable zlib [autodetect]

  293. 

  294.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  311. 

  312. Toolchain options:

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

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

  315.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  333.   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  366. 

  367. Advanced options (experts only):

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

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

  370.   --disable-symver         disable symbol versioning

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

  372.   --disable-safe-bitstream-reader

  373.                            disable buffer boundary checking in bitreaders

  374.                            (faster, but may crash)

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

  376. 

  377. Optimization options (experts only):

  378.   --disable-asm            disable all assembly optimizations

  379.   --disable-altivec        disable AltiVec optimizations

  380.   --disable-vsx            disable VSX optimizations

  381.   --disable-power8         disable POWER8 optimizations

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

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

  384.   --disable-mmx            disable MMX optimizations

  385.   --disable-mmxext         disable MMXEXT optimizations

  386.   --disable-sse            disable SSE optimizations

  387.   --disable-sse2           disable SSE2 optimizations

  388.   --disable-sse3           disable SSE3 optimizations

  389.   --disable-ssse3          disable SSSE3 optimizations

  390.   --disable-sse4           disable SSE4 optimizations

  391.   --disable-sse42          disable SSE4.2 optimizations

  392.   --disable-avx            disable AVX optimizations

  393.   --disable-xop            disable XOP optimizations

  394.   --disable-fma3           disable FMA3 optimizations

  395.   --disable-fma4           disable FMA4 optimizations

  396.   --disable-avx2           disable AVX2 optimizations

  397.   --disable-aesni          disable AESNI optimizations

  398.   --disable-armv5te        disable armv5te optimizations

  399.   --disable-armv6          disable armv6 optimizations

  400.   --disable-armv6t2        disable armv6t2 optimizations

  401.   --disable-vfp            disable VFP optimizations

  402.   --disable-neon           disable NEON optimizations

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

  404.   --disable-yasm           disable use of nasm/yasm assembly

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

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

  407.   --disable-msa            disable MSA optimizations

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

  409.   --disable-mmi            disable Loongson SIMD optimizations

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

  411. 

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

  413.   --disable-debug          disable debugging symbols

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

  415.   --disable-optimizations  disable compiler optimizations

  416.   --enable-extra-warnings  enable more compiler warnings

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

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

  419.                            2 causes a slowdown at runtime.

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

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

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

  423.                            Cannot be combined with --target-exec

  424.   --enable-ftrapv          Trap arithmetic overflows

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

  426.                            \$FATE_SAMPLES at make invocation time.

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

  428.                            used only for debugging purposes)

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

  430.                            should be used only for debugging purposes)

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

  432.   --disable-random

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

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

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

  436.                            (group) and PROB the probability associated with

  437.                            NAME (default 0.5).

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

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

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

  441.   --enable-osfuzz          Enable building fuzzer tool

  442.   --libfuzzer=PATH         path to libfuzzer

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

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

  445. 

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

  447. EOF

  448.   exit 0

  449. }

  450. 

  451. quotes='""'

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

  453.     ncolors=$(tput colors)

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

  455.         bold_color=$(tput bold)

  456.         warn_color=$(tput setaf 3)

  457.         error_color=$(tput setaf 1)

  458.         reset_color=$(tput sgr0)

  459.     fi

  460.     # 72 used instead of 80 since that's the default of pr

  461.     ncols=$(tput cols)

  462. fi

  463. : ${ncols:=72}

  464. 

  465. log(){

  466.     echo "$@" >> $logfile

  467. }

  468. 

  469. log_file(){

  470.     log BEGIN $1

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

  472.     log END $1

  473. }

  474. 

  475. warn(){

  476.     log "WARNING: $*"

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

  478. }

  479. 

  480. die(){

  481.     log "$@"

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

  483.     cat <<EOF

  484. 

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

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

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

  488. EOF

  489.     if disabled logging; then

  490.         cat <<EOF

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

  492. include the log this produces with your report.

  493. EOF

  494.     else

  495.         cat <<EOF

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

  497. solve the problem.

  498. EOF

  499.     fi

  500.     exit 1

  501. }

  502. 

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

  504. toupper(){

  505.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  506. }

  507. 

  508. tolower(){

  509.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  510. }

  511. 

  512. c_escape(){

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

  514. }

  515. 

  516. sh_quote(){

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

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

  519.     echo "$v"

  520. }

  521. 

  522. cleanws(){

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

  524. }

  525. 

  526. filter(){

  527.     pat=$1

  528.     shift

  529.     for v; do

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

  531.     done

  532. }

  533. 

  534. filter_out(){

  535.     pat=$1

  536.     shift

  537.     for v; do

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

  539.     done

  540. }

  541. 

  542. map(){

  543.     m=$1

  544.     shift

  545.     for v; do eval $m; done

  546. }

  547. 

  548. add_suffix(){

  549.     suffix=$1

  550.     shift

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

  552. }

  553. 

  554. set_all(){

  555.     value=$1

  556.     shift

  557.     for var in $*; do

  558.         eval $var=$value

  559.     done

  560. }

  561. 

  562. set_weak(){

  563.     value=$1

  564.     shift

  565.     for var; do

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

  567.     done

  568. }

  569. 

  570. sanitize_var_name(){

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

  572. }

  573. 

  574. set_safe(){

  575.     var=$1

  576.     shift

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

  578. }

  579. 

  580. get_safe(){

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

  582. }

  583. 

  584. pushvar(){

  585.     for pvar in $*; do

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

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

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

  589.     done

  590. }

  591. 

  592. popvar(){

  593.     for pvar in $*; do

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

  595.         test $level = 0 && continue

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

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

  598.         eval ${pvar}_level=$level

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

  600.     done

  601. }

  602. 

  603. request(){

  604.     for var in $*; do

  605.         eval ${var}_requested=yes

  606.         eval $var=

  607.     done

  608. }

  609. 

  610. enable(){

  611.     set_all yes $*

  612. }

  613. 

  614. disable(){

  615.     set_all no $*

  616. }

  617. 

  618. enable_weak(){

  619.     set_weak yes $*

  620. }

  621. 

  622. disable_weak(){

  623.     set_weak no $*

  624. }

  625. 

  626. enable_safe(){

  627.     for var; do

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

  629.     done

  630. }

  631. 

  632. disable_safe(){

  633.     for var; do

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

  635.     done

  636. }

  637. 

  638. do_enable_deep(){

  639.     for var; do

  640.         enabled $var && continue

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

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

  643.         pushvar var sgs

  644.         enable_deep $sel

  645.         popvar sgs

  646.         enable_deep_weak $sgs

  647.         popvar var

  648.     done

  649. }

  650. 

  651. enable_deep(){

  652.     do_enable_deep $*

  653.     enable $*

  654. }

  655. 

  656. enable_deep_weak(){

  657.     for var; do

  658.         disabled $var && continue

  659.         pushvar var

  660.         do_enable_deep $var

  661.         popvar var

  662.         enable_weak $var

  663.     done

  664. }

  665. 

  666. requested(){

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

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

  669. }

  670. 

  671. enabled(){

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

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

  674. }

  675. 

  676. disabled(){

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

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

  679. }

  680. 

  681. enabled_all(){

  682.     for opt; do

  683.         enabled $opt || return 1

  684.     done

  685. }

  686. 

  687. disabled_all(){

  688.     for opt; do

  689.         disabled $opt || return 1

  690.     done

  691. }

  692. 

  693. enabled_any(){

  694.     for opt; do

  695.         enabled $opt && return 0

  696.     done

  697. }

  698. 

  699. disabled_any(){

  700.     for opt; do

  701.         disabled $opt && return 0

  702.     done

  703.     return 1

  704. }

  705. 

  706. set_default(){

  707.     for opt; do

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

  709.     done

  710. }

  711. 

  712. is_in(){

  713.     value=$1

  714.     shift

  715.     for var in $*; do

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

  717.     done

  718.     return 1

  719. }

  720. 

  721. do_check_deps(){

  722.     for cfg; do

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

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

  725.         disabled ${cfg}_checking && continue

  726.         enable ${cfg}_checking

  727.         append allopts $cfg

  728. 

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

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

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

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

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

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

  735. 

  736.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  738.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  739. 

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

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

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

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

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

  745. 

  746.         if enabled $cfg; then

  747.             enable_deep $dep_sel

  748.             enable_deep_weak $dep_sgs

  749.         fi

  750. 

  751.         disable ${cfg}_checking

  752.     done

  753. }

  754. 

  755. check_deps(){

  756.     unset allopts

  757. 

  758.     do_check_deps "$@"

  759. 

  760.     for cfg in $allopts; do

  761.         enabled $cfg || continue

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

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

  764.     done

  765. }

  766. 

  767. print_config(){

  768.     pfx=$1

  769.     files=$2

  770.     shift 2

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

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

  773.         {

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

  775.             v = \$2;

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

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

  778.             for (f in files) {

  779.                 file = files[f];

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

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

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

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

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

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

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

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

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

  789.                     yesno = \$2;

  790.                     c2 = tolower(c);

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

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

  793.                 }

  794.             }

  795.         }"

  796. }

  797. 

  798. print_enabled(){

  799.     suf=$1

  800.     shift

  801.     for v; do

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

  803.     done

  804. }

  805. 

  806. append(){

  807.     var=$1

  808.     shift

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

  810. }

  811. 

  812. prepend(){

  813.     var=$1

  814.     shift

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

  816. }

  817. 

  818. unique(){

  819.     var=$1

  820.     uniq_list=""

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

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

  823.     done

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

  825. }

  826. 

  827. add_cppflags(){

  828.     append CPPFLAGS "$@"

  829. }

  830. 

  831. add_cflags(){

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

  833. }

  834. 

  835. add_cflags_headers(){

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

  837. }

  838. 

  839. add_cxxflags(){

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

  841. }

  842. 

  843. add_asflags(){

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

  845. }

  846. 

  847. add_objcflags(){

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

  849. }

  850. 

  851. add_ldflags(){

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

  853. }

  854. 

  855. add_ldexeflags(){

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

  857. }

  858. 

  859. add_ldlibflags(){

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

  861. }

  862. 

  863. add_stripflags(){

  864.     append ASMSTRIPFLAGS "$@"

  865. }

  866. 

  867. add_extralibs(){

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

  869. }

  870. 

  871. add_host_cppflags(){

  872.     append host_cppflags "$@"

  873. }

  874. 

  875. add_host_cflags(){

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

  877. }

  878. 

  879. add_host_ldflags(){

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

  881. }

  882. 

  883. add_compat(){

  884.     append compat_objs $1

  885.     shift

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

  887. }

  888. 

  889. check_cmd(){

  890.     log "$@"

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

  892. }

  893. 

  894. check_stat(){

  895.     log check_stat "$@"

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

  897. }

  898. 

  899. cc_o(){

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

  901. }

  902. 

  903. cc_e(){

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

  905. }

  906. 

  907. check_cc(){

  908.     log check_cc "$@"

  909.     cat > $TMPC

  910.     log_file $TMPC

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

  912. }

  913. 

  914. check_cxx(){

  915.     log check_cxx "$@"

  916.     cat > $TMPCPP

  917.     log_file $TMPCPP

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

  919. }

  920. 

  921. check_objcc(){

  922.     log check_objcc "$@"

  923.     cat > $TMPM

  924.     log_file $TMPM

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

  926. }

  927. 

  928. check_cpp(){

  929.     log check_cpp "$@"

  930.     cat > $TMPC

  931.     log_file $TMPC

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

  933. }

  934. 

  935. as_o(){

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

  937. }

  938. 

  939. check_as(){

  940.     log check_as "$@"

  941.     cat > $TMPS

  942.     log_file $TMPS

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

  944. }

  945. 

  946. check_inline_asm(){

  947.     log check_inline_asm "$@"

  948.     name="$1"

  949.     code="$2"

  950.     shift 2

  951.     disable $name

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

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

  954. EOF

  955. }

  956. 

  957. check_inline_asm_flags(){

  958.     log check_inline_asm_flags "$@"

  959.     name="$1"

  960.     code="$2"

  961.     flags=''

  962.     shift 2

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

  964.       append flags $1

  965.       shift

  966.     done;

  967.     disable $name

  968.     cat > $TMPC <<EOF

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

  970. EOF

  971.     log_file $TMPC

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

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

  974. }

  975. 

  976. check_insn(){

  977.     log check_insn "$@"

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

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

  980. }

  981. 

  982. check_yasm(){

  983.     log check_yasm "$@"

  984.     echo "$1" > $TMPS

  985.     log_file $TMPS

  986.     shift 1

  987.     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS

  988. }

  989. 

  990. ld_o(){

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

  992. }

  993. 

  994. check_ld(){

  995.     log check_ld "$@"

  996.     type=$1

  997.     shift 1

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

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

  1000.     check_$type $($cflags_filter $flags) || return

  1001.     flags=$($ldflags_filter $flags)

  1002.     libs=$($ldflags_filter $libs)

  1003.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1004. }

  1005. 

  1006. print_include(){

  1007.     hdr=$1

  1008.     test "${hdr%.h}" = "${hdr}" &&

  1009.         echo "#include $hdr"    ||

  1010.         echo "#include <$hdr>"

  1011. }

  1012. 

  1013. check_code(){

  1014.     log check_code "$@"

  1015.     check=$1

  1016.     headers=$2

  1017.     code=$3

  1018.     shift 3

  1019.     {

  1020.         for hdr in $headers; do

  1021.             print_include $hdr

  1022.         done

  1023.         echo "int main(void) { $code; return 0; }"

  1024.     } | check_$check "$@"

  1025. }

  1026. 

  1027. check_cppflags(){

  1028.     log check_cppflags "$@"

  1029.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1030. int x;

  1031. EOF

  1032. }

  1033. 

  1034. test_cflags(){

  1035.     log test_cflags "$@"

  1036.     set -- $($cflags_filter "$@")

  1037.     check_cc "$@" <<EOF

  1038. int x;

  1039. EOF

  1040. }

  1041. 

  1042. check_cflags(){

  1043.     log check_cflags "$@"

  1044.     test_cflags "$@" && add_cflags "$@"

  1045. }

  1046. 

  1047. check_cxxflags(){

  1048.     log check_cxxflags "$@"

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

  1050.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1051. int x;

  1052. EOF

  1053. }

  1054. 

  1055. test_objcflags(){

  1056.     log test_objcflags "$@"

  1057.     set -- $($objcflags_filter "$@")

  1058.     check_objcc "$@" <<EOF

  1059. int x;

  1060. EOF

  1061. }

  1062. 

  1063. check_objcflags(){

  1064.     log check_objcflags "$@"

  1065.     test_objcflags "$@" && add_objcflags "$@"

  1066. }

  1067. 

  1068. test_ldflags(){

  1069.     log test_ldflags "$@"

  1070.     check_ld "cc" "$@" <<EOF

  1071. int main(void){ return 0; }

  1072. EOF

  1073. }

  1074. 

  1075. check_ldflags(){

  1076.     log check_ldflags "$@"

  1077.     test_ldflags "$@" && add_ldflags "$@"

  1078. }

  1079. 

  1080. test_stripflags(){

  1081.     log test_stripflags "$@"

  1082.     # call check_cc to get a fresh TMPO

  1083.     check_cc <<EOF

  1084. int main(void) { return 0; }

  1085. EOF

  1086.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1087. }

  1088. 

  1089. check_stripflags(){

  1090.     log check_stripflags "$@"

  1091.     test_stripflags "$@" && add_stripflags "$@"

  1092. }

  1093. 

  1094. check_header(){

  1095.     log check_header "$@"

  1096.     header=$1

  1097.     shift

  1098.     disable_safe $header

  1099.     check_cpp "$@" <<EOF && enable_safe $header

  1100. #include <$header>

  1101. int x;

  1102. EOF

  1103. }

  1104. 

  1105. check_header_objcc(){

  1106.     log check_header_objcc "$@"

  1107.     rm -f -- "$TMPO"

  1108.     header=$1

  1109.     shift

  1110.     disable_safe $header

  1111.     {

  1112.        echo "#include <$header>"

  1113.        echo "int main(void) { return 0; }"

  1114.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1115. }

  1116. 

  1117. check_func(){

  1118.     log check_func "$@"

  1119.     func=$1

  1120.     shift

  1121.     disable $func

  1122.     check_ld "cc" "$@" <<EOF && enable $func

  1123. extern int $func();

  1124. int main(void){ $func(); }

  1125. EOF

  1126. }

  1127. 

  1128. check_complexfunc(){

  1129.     log check_complexfunc "$@"

  1130.     func=$1

  1131.     narg=$2

  1132.     shift 2

  1133.     test $narg = 2 && args="f, g" || args="f * I"

  1134.     disable $func

  1135.     check_ld "cc" "$@" <<EOF && enable $func

  1136. #include <complex.h>

  1137. #include <math.h>

  1138. float foo(complex float f, complex float g) { return $func($args); }

  1139. int main(void){ return (int) foo; }

  1140. EOF

  1141. }

  1142. 

  1143. check_mathfunc(){

  1144.     log check_mathfunc "$@"

  1145.     func=$1

  1146.     narg=$2

  1147.     shift 2

  1148.     test $narg = 2 && args="f, g" || args="f"

  1149.     disable $func

  1150.     check_ld "cc" "$@" <<EOF && enable $func

  1151. #include <math.h>

  1152. float foo(float f, float g) { return $func($args); }

  1153. int main(void){ return (int) foo; }

  1154. EOF

  1155. }

  1156. 

  1157. check_func_headers(){

  1158.     log check_func_headers "$@"

  1159.     headers=$1

  1160.     funcs=$2

  1161.     shift 2

  1162.     {

  1163.         for hdr in $headers; do

  1164.             print_include $hdr

  1165.         done

  1166.         echo "#include <stdint.h>"

  1167.         for func in $funcs; do

  1168.             echo "long check_$func(void) { return (long) $func; }"

  1169.         done

  1170.         echo "int main(void) { int ret = 0;"

  1171.         # LTO could optimize out the test functions without this

  1172.         for func in $funcs; do

  1173.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1174.         done

  1175.         echo "return ret; }"

  1176.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1177. }

  1178. 

  1179. check_class_headers_cpp(){

  1180.     log check_class_headers_cpp "$@"

  1181.     headers=$1

  1182.     classes=$2

  1183.     shift 2

  1184.     {

  1185.         for hdr in $headers; do

  1186.             echo "#include <$hdr>"

  1187.         done

  1188.         echo "int main(void) { "

  1189.         i=1

  1190.         for class in $classes; do

  1191.             echo "$class obj$i;"

  1192.             i=$(expr $i + 1)

  1193.         done

  1194.         echo "return 0; }"

  1195.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1196. }

  1197. 

  1198. check_cpp_condition(){

  1199.     log check_cpp_condition "$@"

  1200.     header=$1

  1201.     condition=$2

  1202.     shift 2

  1203.     check_cpp "$@" <<EOF

  1204. #include <$header>

  1205. #if !($condition)

  1206. #error "unsatisfied condition: $condition"

  1207. #endif

  1208. EOF

  1209. }

  1210. 

  1211. test_cflags_cc(){

  1212.     log test_cflags_cc "$@"

  1213.     flags=$1

  1214.     header=$2

  1215.     condition=$3

  1216.     shift 3

  1217.     set -- $($cflags_filter "$flags")

  1218.     check_cc "$@" <<EOF

  1219. #include <$header>

  1220. #if !($condition)

  1221. #error "unsatisfied condition: $condition"

  1222. #endif

  1223. EOF

  1224. }

  1225. 

  1226. check_lib(){

  1227.     log check_lib "$@"

  1228.     name="$1"

  1229.     headers="$2"

  1230.     funcs="$3"

  1231.     shift 3

  1232.     disable $name

  1233.     check_func_headers "$headers" "$funcs" "$@" &&

  1234.         enable $name && add_extralibs "$@"

  1235. }

  1236. 

  1237. check_lib_cpp(){

  1238.     log check_lib_cpp "$@"

  1239.     headers="$1"

  1240.     classes="$2"

  1241.     shift 2

  1242.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1243. }

  1244. 

  1245. check_pkg_config(){

  1246.     log check_pkg_config "$@"

  1247.     pkg_version="$1"

  1248.     pkg="${1%% *}"

  1249.     headers="$2"

  1250.     funcs="$3"

  1251.     shift 3

  1252.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1253.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1254.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1255.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1256.         set_safe "${pkg}_cflags"    $pkg_cflags &&

  1257.         set_safe "${pkg}_extralibs" $pkg_libs

  1258. }

  1259. 

  1260. check_exec(){

  1261.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1262. }

  1263. 

  1264. check_exec_crash(){

  1265.     log check_exec_crash "$@"

  1266.     code=$(cat)

  1267. 

  1268.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1269.     # are safe but may not be available everywhere.  Thus we use

  1270.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1271.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1272.     # is not defined by standard C so it is used conditionally.

  1273. 

  1274.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1275. #include <signal.h>

  1276. static void sighandler(int sig){

  1277.     raise(SIGTERM);

  1278. }

  1279. int foo(void){

  1280.     $code

  1281. }

  1282. int (*func_ptr)(void) = foo;

  1283. int main(void){

  1284.     signal(SIGILL, sighandler);

  1285.     signal(SIGFPE, sighandler);

  1286.     signal(SIGSEGV, sighandler);

  1287. #ifdef SIGBUS

  1288.     signal(SIGBUS, sighandler);

  1289. #endif

  1290.     return func_ptr();

  1291. }

  1292. EOF

  1293. }

  1294. 

  1295. check_type(){

  1296.     log check_type "$@"

  1297.     headers=$1

  1298.     type=$2

  1299.     shift 2

  1300.     disable_safe "$type"

  1301.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1302. }

  1303. 

  1304. check_struct(){

  1305.     log check_struct "$@"

  1306.     headers=$1

  1307.     struct=$2

  1308.     member=$3

  1309.     shift 3

  1310.     disable_safe "${struct}_${member}"

  1311.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

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

  1313. }

  1314. 

  1315. check_builtin(){

  1316.     log check_builtin "$@"

  1317.     name=$1

  1318.     headers=$2

  1319.     builtin=$3

  1320.     shift 3

  1321.     disable "$name"

  1322.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1323. }

  1324. 

  1325. check_compile_assert(){

  1326.     log check_compile_assert "$@"

  1327.     name=$1

  1328.     headers=$2

  1329.     condition=$3

  1330.     shift 3

  1331.     disable "$name"

  1332.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1333. }

  1334. 

  1335. require(){

  1336.     log require "$@"

  1337.     name_version="$1"

  1338.     name="${1%% *}"

  1339.     headers="$2"

  1340.     func="$3"

  1341.     shift 3

  1342.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1343. }

  1344. 

  1345. require_cpp(){

  1346.     name="$1"

  1347.     headers="$2"

  1348.     classes="$3"

  1349.     shift 3

  1350.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1351. }

  1352. 

  1353. use_pkg_config(){

  1354.     log use_pkg_config "$@"

  1355.     pkg="$1"

  1356.     check_pkg_config "$@" || return 1

  1357.     add_cflags    $(get_safe "${pkg}_cflags")

  1358.     add_extralibs $(get_safe "${pkg}_extralibs")

  1359. }

  1360. 

  1361. require_pkg_config(){

  1362.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1363. }

  1364. 

  1365. hostcc_e(){

  1366.     eval printf '%s\\n' $HOSTCC_E

  1367. }

  1368. 

  1369. hostcc_o(){

  1370.     eval printf '%s\\n' $HOSTCC_O

  1371. }

  1372. 

  1373. check_host_cc(){

  1374.     log check_host_cc "$@"

  1375.     cat > $TMPC

  1376.     log_file $TMPC

  1377.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1378. }

  1379. 

  1380. check_host_cpp(){

  1381.     log check_host_cpp "$@"

  1382.     cat > $TMPC

  1383.     log_file $TMPC

  1384.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1385. }

  1386. 

  1387. check_host_cppflags(){

  1388.     log check_host_cppflags "$@"

  1389.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1390. int x;

  1391. EOF

  1392. }

  1393. 

  1394. check_host_cflags(){

  1395.     log check_host_cflags "$@"

  1396.     set -- $($host_cflags_filter "$@")

  1397.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1398. int x;

  1399. EOF

  1400. }

  1401. 

  1402. check_host_cpp_condition(){

  1403.     log check_host_cpp_condition "$@"

  1404.     header=$1

  1405.     condition=$2

  1406.     shift 2

  1407.     check_host_cpp "$@" <<EOF

  1408. #include <$header>

  1409. #if !($condition)

  1410. #error "unsatisfied condition: $condition"

  1411. #endif

  1412. EOF

  1413. }

  1414. 

  1415. cp_if_changed(){

  1416.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1417.     mkdir -p "$(dirname $2)"

  1418.     cp -f "$1" "$2"

  1419. }

  1420. 

  1421. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1422. # system-dependent things.

  1423. 

  1424. AVCODEC_COMPONENTS="

  1425.     bsfs

  1426.     decoders

  1427.     encoders

  1428.     hwaccels

  1429.     parsers

  1430. "

  1431. 

  1432. AVDEVICE_COMPONENTS="

  1433.     indevs

  1434.     outdevs

  1435. "

  1436. AVFILTER_COMPONENTS="

  1437.     filters

  1438. "

  1439. AVFORMAT_COMPONENTS="

  1440.     demuxers

  1441.     muxers

  1442.     protocols

  1443. "

  1444. 

  1445. AVRESAMPLE_COMPONENTS=""

  1446. AVUTIL_COMPONENTS=""

  1447. 

  1448. COMPONENT_LIST="

  1449.     $AVCODEC_COMPONENTS

  1450.     $AVDEVICE_COMPONENTS

  1451.     $AVFILTER_COMPONENTS

  1452.     $AVFORMAT_COMPONENTS

  1453.     $AVRESAMPLE_COMPONENTS

  1454.     $AVUTIL_COMPONENTS

  1455. "

  1456. 

  1457. EXAMPLE_LIST="

  1458.     avio_dir_cmd_example

  1459.     avio_reading_example

  1460.     decode_audio_example

  1461.     decode_video_example

  1462.     demuxing_decoding_example

  1463.     encode_audio_example

  1464.     encode_video_example

  1465.     extract_mvs_example

  1466.     filter_audio_example

  1467.     filtering_audio_example

  1468.     filtering_video_example

  1469.     http_multiclient_example

  1470.     metadata_example

  1471.     muxing_example

  1472.     qsvdec_example

  1473.     remuxing_example

  1474.     resampling_audio_example

  1475.     scaling_video_example

  1476.     transcode_aac_example

  1477.     transcoding_example

  1478. "

  1479. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1480.     bzlib

  1481.     iconv

  1482.     libxcb

  1483.     libxcb_shm

  1484.     libxcb_shape

  1485.     libxcb_xfixes

  1486.     lzma

  1487.     schannel

  1488.     sdl

  1489.     sdl2

  1490.     securetransport

  1491.     xlib

  1492.     zlib

  1493. "

  1494. 

  1495. EXTERNAL_LIBRARY_GPL_LIST="

  1496.     avisynth

  1497.     frei0r

  1498.     libcdio

  1499.     librubberband

  1500.     libvidstab

  1501.     libx264

  1502.     libx265

  1503.     libxavs

  1504.     libxvid

  1505. "

  1506. 

  1507. EXTERNAL_LIBRARY_NONFREE_LIST="

  1508.     decklink

  1509.     libfdk_aac

  1510.     openssl

  1511. "

  1512. 

  1513. EXTERNAL_LIBRARY_VERSION3_LIST="

  1514.     gmp

  1515.     libopencore_amrnb

  1516.     libopencore_amrwb

  1517.     libvo_amrwbenc

  1518. "

  1519. 

  1520. EXTERNAL_LIBRARY_GPLV3_LIST="

  1521.     libsmbclient

  1522. "

  1523. 

  1524. EXTERNAL_LIBRARY_LIST="

  1525.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1526.     $EXTERNAL_LIBRARY_GPL_LIST

  1527.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1528.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1529.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1530.     chromaprint

  1531.     crystalhd

  1532.     gcrypt

  1533.     gnutls

  1534.     jni

  1535.     ladspa

  1536.     libass

  1537.     libbluray

  1538.     libbs2b

  1539.     libcaca

  1540.     libcelt

  1541.     libdc1394

  1542.     libflite

  1543.     libfontconfig

  1544.     libfreetype

  1545.     libfribidi

  1546.     libgme

  1547.     libgsm

  1548.     libiec61883

  1549.     libilbc

  1550.     libkvazaar

  1551.     libmodplug

  1552.     libmp3lame

  1553.     libopencv

  1554.     libopenh264

  1555.     libopenjpeg

  1556.     libopenmpt

  1557.     libopus

  1558.     libpulse

  1559.     librsvg

  1560.     librtmp

  1561.     libshine

  1562.     libsmbclient

  1563.     libsnappy

  1564.     libsoxr

  1565.     libspeex

  1566.     libssh

  1567.     libtesseract

  1568.     libtheora

  1569.     libtwolame

  1570.     libv4l2

  1571.     libvorbis

  1572.     libvpx

  1573.     libwavpack

  1574.     libwebp

  1575.     libzimg

  1576.     libzmq

  1577.     libzvbi

  1578.     mediacodec

  1579.     netcdf

  1580.     openal

  1581.     opencl

  1582.     opengl

  1583.     videotoolbox

  1584. "

  1585. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1586.     audiotoolbox

  1587.     cuda

  1588.     cuvid

  1589.     d3d11va

  1590.     dxva2

  1591.     nvenc

  1592.     vaapi

  1593.     vda

  1594.     vdpau

  1595.     videotoolbox_hwaccel

  1596.     xvmc

  1597. "

  1598. 

  1599. HWACCEL_LIBRARY_NONFREE_LIST="

  1600.     cuda_sdk

  1601.     libnpp

  1602. "

  1603. 

  1604. HWACCEL_LIBRARY_LIST="

  1605.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1606.     $HWACCEL_LIBRARY_NONFREE_LIST

  1607.     libmfx

  1608.     mmal

  1609.     omx

  1610. "

  1611. 

  1612. DOCUMENT_LIST="

  1613.     doc

  1614.     htmlpages

  1615.     manpages

  1616.     podpages

  1617.     txtpages

  1618. "

  1619. 

  1620. FEATURE_LIST="

  1621.     ftrapv

  1622.     gray

  1623.     hardcoded_tables

  1624.     omx_rpi

  1625.     runtime_cpudetect

  1626.     safe_bitstream_reader

  1627.     shared

  1628.     small

  1629.     static

  1630.     swscale_alpha

  1631. "

  1632. 

  1633. LIBRARY_LIST="

  1634.     avcodec

  1635.     avdevice

  1636.     avfilter

  1637.     avformat

  1638.     avresample

  1639.     avutil

  1640.     postproc

  1641.     swresample

  1642.     swscale

  1643. "

  1644. 

  1645. LICENSE_LIST="

  1646.     gpl

  1647.     nonfree

  1648.     version3

  1649. "

  1650. 

  1651. PROGRAM_LIST="

  1652.     ffplay

  1653.     ffprobe

  1654.     ffserver

  1655.     ffmpeg

  1656. "

  1657. 

  1658. SUBSYSTEM_LIST="

  1659.     dct

  1660.     dwt

  1661.     error_resilience

  1662.     faan

  1663.     fast_unaligned

  1664.     fft

  1665.     lsp

  1666.     lzo

  1667.     mdct

  1668.     pixelutils

  1669.     network

  1670.     rdft

  1671. "

  1672. 

  1673. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1674. CONFIG_LIST="

  1675.     $DOCUMENT_LIST

  1676.     $EXAMPLE_LIST

  1677.     $EXTERNAL_LIBRARY_LIST

  1678.     $HWACCEL_LIBRARY_LIST

  1679.     $FEATURE_LIST

  1680.     $LICENSE_LIST

  1681.     $LIBRARY_LIST

  1682.     $PROGRAM_LIST

  1683.     $SUBSYSTEM_LIST

  1684.     fontconfig

  1685.     memory_poisoning

  1686.     neon_clobber_test

  1687.     ossfuzz

  1688.     pic

  1689.     thumb

  1690.     valgrind_backtrace

  1691.     xmm_clobber_test

  1692.     $COMPONENT_LIST

  1693. "

  1694. 

  1695. THREADS_LIST="

  1696.     pthreads

  1697.     os2threads

  1698.     w32threads

  1699. "

  1700. 

  1701. ATOMICS_LIST="

  1702.     atomics_gcc

  1703.     atomics_suncc

  1704.     atomics_win32

  1705. "

  1706. 

  1707. AUTODETECT_LIBS="

  1708.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1709.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1710.     $THREADS_LIST

  1711. "

  1712. 

  1713. ARCH_LIST="

  1714.     aarch64

  1715.     alpha

  1716.     arm

  1717.     avr32

  1718.     avr32_ap

  1719.     avr32_uc

  1720.     bfin

  1721.     ia64

  1722.     m68k

  1723.     mips

  1724.     mips64

  1725.     parisc

  1726.     ppc

  1727.     ppc64

  1728.     s390

  1729.     sh4

  1730.     sparc

  1731.     sparc64

  1732.     tilegx

  1733.     tilepro

  1734.     tomi

  1735.     x86

  1736.     x86_32

  1737.     x86_64

  1738. "

  1739. 

  1740. ARCH_EXT_LIST_ARM="

  1741.     armv5te

  1742.     armv6

  1743.     armv6t2

  1744.     armv8

  1745.     neon

  1746.     vfp

  1747.     vfpv3

  1748.     setend

  1749. "

  1750. 

  1751. ARCH_EXT_LIST_MIPS="

  1752.     mipsfpu

  1753.     mips32r2

  1754.     mips32r5

  1755.     mips64r2

  1756.     mips32r6

  1757.     mips64r6

  1758.     mipsdsp

  1759.     mipsdspr2

  1760.     msa

  1761. "

  1762. 

  1763. ARCH_EXT_LIST_LOONGSON="

  1764.     loongson2

  1765.     loongson3

  1766.     mmi

  1767. "

  1768. 

  1769. ARCH_EXT_LIST_X86_SIMD="

  1770.     aesni

  1771.     amd3dnow

  1772.     amd3dnowext

  1773.     avx

  1774.     avx2

  1775.     fma3

  1776.     fma4

  1777.     mmx

  1778.     mmxext

  1779.     sse

  1780.     sse2

  1781.     sse3

  1782.     sse4

  1783.     sse42

  1784.     ssse3

  1785.     xop

  1786. "

  1787. 

  1788. ARCH_EXT_LIST_PPC="

  1789.     altivec

  1790.     dcbzl

  1791.     ldbrx

  1792.     power8

  1793.     ppc4xx

  1794.     vsx

  1795. "

  1796. 

  1797. ARCH_EXT_LIST_X86="

  1798.     $ARCH_EXT_LIST_X86_SIMD

  1799.     cpunop

  1800.     i686

  1801. "

  1802. 

  1803. ARCH_EXT_LIST="

  1804.     $ARCH_EXT_LIST_ARM

  1805.     $ARCH_EXT_LIST_PPC

  1806.     $ARCH_EXT_LIST_X86

  1807.     $ARCH_EXT_LIST_MIPS

  1808.     $ARCH_EXT_LIST_LOONGSON

  1809. "

  1810. 

  1811. ARCH_FEATURES="

  1812.     aligned_stack

  1813.     fast_64bit

  1814.     fast_clz

  1815.     fast_cmov

  1816.     local_aligned_8

  1817.     local_aligned_16

  1818.     local_aligned_32

  1819.     simd_align_16

  1820.     simd_align_32

  1821. "

  1822. 

  1823. BUILTIN_LIST="

  1824.     atomic_cas_ptr

  1825.     machine_rw_barrier

  1826.     MemoryBarrier

  1827.     mm_empty

  1828.     rdtsc

  1829.     sarestart

  1830.     sem_timedwait

  1831.     sync_val_compare_and_swap

  1832. "

  1833. HAVE_LIST_CMDLINE="

  1834.     inline_asm

  1835.     symver

  1836.     yasm

  1837. "

  1838. 

  1839. HAVE_LIST_PUB="

  1840.     bigendian

  1841.     fast_unaligned

  1842. "

  1843. 

  1844. HEADERS_LIST="

  1845.     alsa_asoundlib_h

  1846.     altivec_h

  1847.     arpa_inet_h

  1848.     asm_types_h

  1849.     cdio_paranoia_h

  1850.     cdio_paranoia_paranoia_h

  1851.     cuda_h

  1852.     d3d11_h

  1853.     dispatch_dispatch_h

  1854.     dev_bktr_ioctl_bt848_h

  1855.     dev_bktr_ioctl_meteor_h

  1856.     dev_ic_bt8xx_h

  1857.     dev_video_bktr_ioctl_bt848_h

  1858.     dev_video_meteor_ioctl_meteor_h

  1859.     direct_h

  1860.     dirent_h

  1861.     dlfcn_h

  1862.     dxva_h

  1863.     ES2_gl_h

  1864.     gsm_h

  1865.     io_h

  1866.     mach_mach_time_h

  1867.     machine_ioctl_bt848_h

  1868.     machine_ioctl_meteor_h

  1869.     malloc_h

  1870.     opencv2_core_core_c_h

  1871.     openjpeg_2_1_openjpeg_h

  1872.     openjpeg_2_0_openjpeg_h

  1873.     openjpeg_1_5_openjpeg_h

  1874.     OpenGL_gl3_h

  1875.     poll_h

  1876.     sndio_h

  1877.     soundcard_h

  1878.     stdatomic_h

  1879.     sys_mman_h

  1880.     sys_param_h

  1881.     sys_resource_h

  1882.     sys_select_h

  1883.     sys_soundcard_h

  1884.     sys_time_h

  1885.     sys_un_h

  1886.     sys_videoio_h

  1887.     termios_h

  1888.     udplite_h

  1889.     unistd_h

  1890.     valgrind_valgrind_h

  1891.     windows_h

  1892.     winsock2_h

  1893. "

  1894. 

  1895. INTRINSICS_LIST="

  1896.     intrinsics_neon

  1897. "

  1898. 

  1899. COMPLEX_FUNCS="

  1900.     cabs

  1901.     cexp

  1902. "

  1903. 

  1904. MATH_FUNCS="

  1905.     atanf

  1906.     atan2f

  1907.     cbrt

  1908.     cbrtf

  1909.     copysign

  1910.     cosf

  1911.     erf

  1912.     exp2

  1913.     exp2f

  1914.     expf

  1915.     hypot

  1916.     isfinite

  1917.     isinf

  1918.     isnan

  1919.     ldexpf

  1920.     llrint

  1921.     llrintf

  1922.     log2

  1923.     log2f

  1924.     log10f

  1925.     lrint

  1926.     lrintf

  1927.     powf

  1928.     rint

  1929.     round

  1930.     roundf

  1931.     sinf

  1932.     trunc

  1933.     truncf

  1934. "

  1935. 

  1936. SYSTEM_FUNCS="

  1937.     access

  1938.     aligned_malloc

  1939.     arc4random

  1940.     clock_gettime

  1941.     closesocket

  1942.     CommandLineToArgvW

  1943.     CoTaskMemFree

  1944.     CryptGenRandom

  1945.     dlopen

  1946.     fcntl

  1947.     flt_lim

  1948.     fork

  1949.     getaddrinfo

  1950.     gethrtime

  1951.     getopt

  1952.     GetProcessAffinityMask

  1953.     GetProcessMemoryInfo

  1954.     GetProcessTimes

  1955.     getrusage

  1956.     GetSystemTimeAsFileTime

  1957.     gettimeofday

  1958.     glob

  1959.     glXGetProcAddress

  1960.     gmtime_r

  1961.     inet_aton

  1962.     isatty

  1963.     jack_port_get_latency_range

  1964.     kbhit

  1965.     LoadLibrary

  1966.     localtime_r

  1967.     lstat

  1968.     lzo1x_999_compress

  1969.     mach_absolute_time

  1970.     MapViewOfFile

  1971.     memalign

  1972.     mkstemp

  1973.     mmap

  1974.     mprotect

  1975.     nanosleep

  1976.     PeekNamedPipe

  1977.     posix_memalign

  1978.     pthread_cancel

  1979.     sched_getaffinity

  1980.     SetConsoleTextAttribute

  1981.     SetConsoleCtrlHandler

  1982.     setmode

  1983.     setrlimit

  1984.     Sleep

  1985.     strerror_r

  1986.     sysconf

  1987.     sysctl

  1988.     usleep

  1989.     UTGetOSTypeFromString

  1990.     VirtualAlloc

  1991.     wglGetProcAddress

  1992. "

  1993. 

  1994. TOOLCHAIN_FEATURES="

  1995.     as_dn_directive

  1996.     as_fpu_directive

  1997.     as_func

  1998.     as_object_arch

  1999.     asm_mod_q

  2000.     attribute_may_alias

  2001.     attribute_packed

  2002.     blocks_extension

  2003.     ebp_available

  2004.     ebx_available

  2005.     gnu_as

  2006.     gnu_windres

  2007.     ibm_asm

  2008.     inline_asm_direct_symbol_refs

  2009.     inline_asm_labels

  2010.     inline_asm_nonlocal_labels

  2011.     pragma_deprecated

  2012.     rsync_contimeout

  2013.     symver_asm_label

  2014.     symver_gnu_asm

  2015.     vfp_args

  2016.     xform_asm

  2017.     xmm_clobbers

  2018. "

  2019. 

  2020. TYPES_LIST="

  2021.     CONDITION_VARIABLE_Ptr

  2022.     socklen_t

  2023.     struct_addrinfo

  2024.     struct_group_source_req

  2025.     struct_ip_mreq_source

  2026.     struct_ipv6_mreq

  2027.     struct_msghdr_msg_flags

  2028.     struct_pollfd

  2029.     struct_rusage_ru_maxrss

  2030.     struct_sctp_event_subscribe

  2031.     struct_sockaddr_in6

  2032.     struct_sockaddr_sa_len

  2033.     struct_sockaddr_storage

  2034.     struct_stat_st_mtim_tv_nsec

  2035.     struct_v4l2_frmivalenum_discrete

  2036. "

  2037. 

  2038. HAVE_LIST="

  2039.     $ARCH_EXT_LIST

  2040.     $(add_suffix _external $ARCH_EXT_LIST)

  2041.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2042.     $ARCH_FEATURES

  2043.     $ATOMICS_LIST

  2044.     $BUILTIN_LIST

  2045.     $COMPLEX_FUNCS

  2046.     $HAVE_LIST_CMDLINE

  2047.     $HAVE_LIST_PUB

  2048.     $HEADERS_LIST

  2049.     $INTRINSICS_LIST

  2050.     $MATH_FUNCS

  2051.     $SYSTEM_FUNCS

  2052.     $THREADS_LIST

  2053.     $TOOLCHAIN_FEATURES

  2054.     $TYPES_LIST

  2055.     alsa

  2056.     atomics_native

  2057.     dos_paths

  2058.     dxva2_lib

  2059.     dxva2api_cobj

  2060.     jack

  2061.     libc_msvcrt

  2062.     makeinfo

  2063.     makeinfo_html

  2064.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2065.     perl

  2066.     pod2man

  2067.     sdl2

  2068.     section_data_rel_ro

  2069.     sndio

  2070.     texi2html

  2071.     threads

  2072.     vaapi_drm

  2073.     vaapi_x11

  2074.     vdpau_x11

  2075.     winrt

  2076. "

  2077. 

  2078. # options emitted with CONFIG_ prefix but not available on the command line

  2079. CONFIG_EXTRA="

  2080.     aandcttables

  2081.     ac3dsp

  2082.     audio_frame_queue

  2083.     audiodsp

  2084.     blockdsp

  2085.     bswapdsp

  2086.     cabac

  2087.     dirac_parse

  2088.     dvprofile

  2089.     exif

  2090.     faandct

  2091.     faanidct

  2092.     fdctdsp

  2093.     flacdsp

  2094.     fmtconvert

  2095.     frame_thread_encoder

  2096.     g722dsp

  2097.     golomb

  2098.     gplv3

  2099.     h263dsp

  2100.     h264chroma

  2101.     h264dsp

  2102.     h264parse

  2103.     h264pred

  2104.     h264qpel

  2105.     hevcparse

  2106.     hpeldsp

  2107.     huffman

  2108.     huffyuvdsp

  2109.     huffyuvencdsp

  2110.     idctdsp

  2111.     iirfilter

  2112.     mdct15

  2113.     intrax8

  2114.     iso_media

  2115.     ividsp

  2116.     jpegtables

  2117.     lgplv3

  2118.     libx262

  2119.     llauddsp

  2120.     llviddsp

  2121.     llvidencdsp

  2122.     lpc

  2123.     lzf

  2124.     me_cmp

  2125.     mpeg_er

  2126.     mpegaudio

  2127.     mpegaudiodsp

  2128.     mpegaudioheader

  2129.     mpegvideo

  2130.     mpegvideoenc

  2131.     mss34dsp

  2132.     pixblockdsp

  2133.     qpeldsp

  2134.     qsv

  2135.     qsvdec

  2136.     qsvenc

  2137.     rangecoder

  2138.     riffdec

  2139.     riffenc

  2140.     rtpdec

  2141.     rtpenc_chain

  2142.     rv34dsp

  2143.     sinewin

  2144.     snappy

  2145.     srtp

  2146.     startcode

  2147.     texturedsp

  2148.     texturedspenc

  2149.     tpeldsp

  2150.     vaapi_encode

  2151.     vc1dsp

  2152.     videodsp

  2153.     vp3dsp

  2154.     vp56dsp

  2155.     vp8dsp

  2156.     vt_bt2020

  2157.     wma_freqs

  2158.     wmv2dsp

  2159. "

  2160. 

  2161. CMDLINE_SELECT="

  2162.     $ARCH_EXT_LIST

  2163.     $CONFIG_LIST

  2164.     $HAVE_LIST_CMDLINE

  2165.     $THREADS_LIST

  2166.     asm

  2167.     cross_compile

  2168.     debug

  2169.     extra_warnings

  2170.     logging

  2171.     lto

  2172.     optimizations

  2173.     rpath

  2174.     stripping

  2175. "

  2176. 

  2177. PATHS_LIST="

  2178.     bindir

  2179.     datadir

  2180.     docdir

  2181.     incdir

  2182.     libdir

  2183.     mandir

  2184.     pkgconfigdir

  2185.     prefix

  2186.     shlibdir

  2187.     install_name_dir

  2188. "

  2189. 

  2190. CMDLINE_SET="

  2191.     $PATHS_LIST

  2192.     ar

  2193.     arch

  2194.     as

  2195.     assert_level

  2196.     build_suffix

  2197.     cc

  2198.     objcc

  2199.     cpu

  2200.     cross_prefix

  2201.     custom_allocator

  2202.     cxx

  2203.     dep_cc

  2204.     doxygen

  2205.     env

  2206.     extra_version

  2207.     gas

  2208.     host_cc

  2209.     host_cflags

  2210.     host_extralibs

  2211.     host_ld

  2212.     host_ldflags

  2213.     host_os

  2214.     ignore_tests

  2215.     install

  2216.     ld

  2217.     ln_s

  2218.     logfile

  2219.     malloc_prefix

  2220.     nm

  2221.     optflags

  2222.     nvccflags

  2223.     pkg_config

  2224.     pkg_config_flags

  2225.     progs_suffix

  2226.     random_seed

  2227.     ranlib

  2228.     samples

  2229.     strip

  2230.     sws_max_filter_size

  2231.     sysinclude

  2232.     sysroot

  2233.     target_exec

  2234.     target_os

  2235.     target_path

  2236.     target_samples

  2237.     tempprefix

  2238.     toolchain

  2239.     valgrind

  2240.     yasmexe

  2241. "

  2242. 

  2243. CMDLINE_APPEND="

  2244.     extra_cflags

  2245.     extra_cxxflags

  2246.     extra_objcflags

  2247.     host_cppflags

  2248. "

  2249. 

  2250. # code dependency declarations

  2251. 

  2252. # architecture extensions

  2253. 

  2254. armv5te_deps="arm"

  2255. armv6_deps="arm"

  2256. armv6t2_deps="arm"

  2257. armv8_deps="aarch64"

  2258. neon_deps_any="aarch64 arm"

  2259. intrinsics_neon_deps="neon"

  2260. vfp_deps_any="aarch64 arm"

  2261. vfpv3_deps="vfp"

  2262. setend_deps="arm"

  2263. 

  2264. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2265. 

  2266. loongson2_deps="mips"

  2267. loongson3_deps="mips"

  2268. mipsfpu_deps="mips"

  2269. mipsdsp_deps="mips"

  2270. mipsdspr2_deps="mips"

  2271. mips32r2_deps="mips"

  2272. mips32r5_deps="mips"

  2273. mips32r6_deps="mips"

  2274. mips64r2_deps="mips"

  2275. mips64r6_deps="mips"

  2276. msa_deps="mipsfpu"

  2277. mmi_deps="mips"

  2278. 

  2279. altivec_deps="ppc"

  2280. dcbzl_deps="ppc"

  2281. ldbrx_deps="ppc"

  2282. ppc4xx_deps="ppc"

  2283. vsx_deps="altivec"

  2284. power8_deps="vsx"

  2285. 

  2286. cpunop_deps="i686"

  2287. x86_64_select="i686"

  2288. x86_64_suggest="fast_cmov"

  2289. 

  2290. amd3dnow_deps="mmx"

  2291. amd3dnowext_deps="amd3dnow"

  2292. i686_deps="x86"

  2293. mmx_deps="x86"

  2294. mmxext_deps="mmx"

  2295. sse_deps="mmxext"

  2296. sse2_deps="sse"

  2297. sse3_deps="sse2"

  2298. ssse3_deps="sse3"

  2299. sse4_deps="ssse3"

  2300. sse42_deps="sse4"

  2301. aesni_deps="sse42"

  2302. avx_deps="sse42"

  2303. xop_deps="avx"

  2304. fma3_deps="avx"

  2305. fma4_deps="avx"

  2306. avx2_deps="avx"

  2307. 

  2308. mmx_external_deps="yasm"

  2309. mmx_inline_deps="inline_asm"

  2310. mmx_suggest="mmx_external mmx_inline"

  2311. 

  2312. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2313.     eval dep=\$${ext}_deps

  2314.     eval ${ext}_external_deps='"${dep}_external"'

  2315.     eval ${ext}_inline_deps='"${dep}_inline"'

  2316.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2317. done

  2318. 

  2319. aligned_stack_if_any="aarch64 ppc x86"

  2320. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2321. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2322. fast_unaligned_if_any="aarch64 ppc x86"

  2323. simd_align_16_if_any="altivec neon sse"

  2324. simd_align_32_if_any="avx"

  2325. 

  2326. # system capabilities

  2327. symver_if_any="symver_asm_label symver_gnu_asm"

  2328. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2329. 

  2330. # threading support

  2331. atomics_gcc_if="sync_val_compare_and_swap"

  2332. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2333. atomics_win32_if="MemoryBarrier"

  2334. atomics_native_if_any="$ATOMICS_LIST"

  2335. w32threads_deps="atomics_native"

  2336. threads_if_any="$THREADS_LIST"

  2337. 

  2338. # subsystems

  2339. dct_select="rdft"

  2340. dirac_parse_select="golomb"

  2341. error_resilience_select="me_cmp"

  2342. faandct_deps="faan fdctdsp"

  2343. faanidct_deps="faan idctdsp"

  2344. h264dsp_select="startcode"

  2345. hevcparse_select="golomb"

  2346. frame_thread_encoder_deps="encoders threads"

  2347. intrax8_select="blockdsp idctdsp"

  2348. mdct_select="fft"

  2349. mdct15_select="fft"

  2350. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2351. mpeg_er_select="error_resilience"

  2352. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2353. mpegaudiodsp_select="dct"

  2354. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2355. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2356. vc1dsp_select="h264chroma qpeldsp startcode"

  2357. rdft_select="fft"

  2358. 

  2359. # decoders / encoders

  2360. aac_decoder_select="mdct15 mdct sinewin"

  2361. aac_fixed_decoder_select="mdct sinewin"

  2362. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2363. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2364. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2365. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2366. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2367. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2368. adpcm_g722_decoder_select="g722dsp"

  2369. adpcm_g722_encoder_select="g722dsp"

  2370. aic_decoder_select="golomb idctdsp"

  2371. alac_encoder_select="lpc"

  2372. als_decoder_select="bswapdsp"

  2373. amrnb_decoder_select="lsp"

  2374. amrwb_decoder_select="lsp"

  2375. amv_decoder_select="sp5x_decoder exif"

  2376. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2377. ape_decoder_select="bswapdsp llauddsp"

  2378. apng_decoder_select="zlib"

  2379. apng_encoder_select="llvidencdsp zlib"

  2380. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2381. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2382. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2383. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2384. atrac1_decoder_select="mdct sinewin"

  2385. atrac3_decoder_select="mdct"

  2386. atrac3p_decoder_select="mdct sinewin"

  2387. avrn_decoder_select="exif jpegtables"

  2388. bink_decoder_select="blockdsp hpeldsp"

  2389. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2390. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2391. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2392. cllc_decoder_select="bswapdsp"

  2393. comfortnoise_encoder_select="lpc"

  2394. cook_decoder_select="audiodsp mdct sinewin"

  2395. cscd_decoder_select="lzo"

  2396. cscd_decoder_suggest="zlib"

  2397. dca_decoder_select="mdct"

  2398. dds_decoder_select="texturedsp"

  2399. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2400. dnxhd_decoder_select="blockdsp idctdsp"

  2401. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2402. dvvideo_decoder_select="dvprofile idctdsp"

  2403. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2404. dxa_decoder_select="zlib"

  2405. dxv_decoder_select="lzf texturedsp"

  2406. eac3_decoder_select="ac3_decoder"

  2407. eac3_encoder_select="ac3_encoder"

  2408. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2409. eatgq_decoder_select="aandcttables"

  2410. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2411. exr_decoder_select="zlib"

  2412. ffv1_decoder_select="rangecoder"

  2413. ffv1_encoder_select="rangecoder"

  2414. ffvhuff_decoder_select="huffyuv_decoder"

  2415. ffvhuff_encoder_select="huffyuv_encoder"

  2416. fic_decoder_select="golomb"

  2417. flac_decoder_select="flacdsp"

  2418. flac_encoder_select="bswapdsp flacdsp lpc"

  2419. flashsv2_decoder_select="zlib"

  2420. flashsv2_encoder_select="zlib"

  2421. flashsv_decoder_select="zlib"

  2422. flashsv_encoder_select="zlib"

  2423. flv_decoder_select="h263_decoder"

  2424. flv_encoder_select="h263_encoder"

  2425. fourxm_decoder_select="blockdsp bswapdsp"

  2426. fraps_decoder_select="bswapdsp huffman"

  2427. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2428. g729_decoder_select="audiodsp"

  2429. h261_decoder_select="mpegvideo"

  2430. h261_encoder_select="aandcttables mpegvideoenc"

  2431. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2432. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2433. h263i_decoder_select="h263_decoder"

  2434. h263p_decoder_select="h263_decoder"

  2435. h263p_encoder_select="h263_encoder"

  2436. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2437. h264_decoder_suggest="error_resilience"

  2438. hap_decoder_select="snappy texturedsp"

  2439. hap_encoder_deps="libsnappy"

  2440. hap_encoder_select="texturedspenc"

  2441. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2442. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2443. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2444. iac_decoder_select="imc_decoder"

  2445. imc_decoder_select="bswapdsp fft mdct sinewin"

  2446. indeo3_decoder_select="hpeldsp"

  2447. indeo4_decoder_select="ividsp"

  2448. indeo5_decoder_select="ividsp"

  2449. interplay_video_decoder_select="hpeldsp"

  2450. jpegls_decoder_select="mjpeg_decoder"

  2451. jv_decoder_select="blockdsp"

  2452. lagarith_decoder_select="llviddsp"

  2453. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2454. magicyuv_decoder_select="llviddsp"

  2455. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2456. metasound_decoder_select="lsp mdct sinewin"

  2457. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2458. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2459. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2460. mjpegb_decoder_select="mjpeg_decoder"

  2461. mlp_decoder_select="mlp_parser"

  2462. mlp_encoder_select="lpc"

  2463. motionpixels_decoder_select="bswapdsp"

  2464. mp1_decoder_select="mpegaudio"

  2465. mp1float_decoder_select="mpegaudio"

  2466. mp2_decoder_select="mpegaudio"

  2467. mp2float_decoder_select="mpegaudio"

  2468. mp3_decoder_select="mpegaudio"

  2469. mp3adu_decoder_select="mpegaudio"

  2470. mp3adufloat_decoder_select="mpegaudio"

  2471. mp3float_decoder_select="mpegaudio"

  2472. mp3on4_decoder_select="mpegaudio"

  2473. mp3on4float_decoder_select="mpegaudio"

  2474. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2475. mpc8_decoder_select="mpegaudiodsp"

  2476. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2477. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2478. mpegvideo_decoder_select="mpegvideo"

  2479. mpeg1video_decoder_select="mpegvideo"

  2480. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2481. mpeg2video_decoder_select="mpegvideo"

  2482. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2483. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2484. mpeg4_encoder_select="h263_encoder"

  2485. msa1_decoder_select="mss34dsp"

  2486. mscc_decoder_select="zlib"

  2487. msmpeg4v1_decoder_select="h263_decoder"

  2488. msmpeg4v2_decoder_select="h263_decoder"

  2489. msmpeg4v2_encoder_select="h263_encoder"

  2490. msmpeg4v3_decoder_select="h263_decoder"

  2491. msmpeg4v3_encoder_select="h263_encoder"

  2492. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2493. mts2_decoder_select="mss34dsp"

  2494. mxpeg_decoder_select="mjpeg_decoder"

  2495. nellymoser_decoder_select="mdct sinewin"

  2496. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2497. nuv_decoder_select="idctdsp lzo"

  2498. on2avc_decoder_select="mdct"

  2499. opus_decoder_deps="swresample"

  2500. opus_decoder_select="mdct15"

  2501. opus_encoder_select="audio_frame_queue mdct15"

  2502. png_decoder_select="zlib"

  2503. png_encoder_select="llvidencdsp zlib"

  2504. prores_decoder_select="blockdsp idctdsp"

  2505. prores_encoder_select="fdctdsp"

  2506. qcelp_decoder_select="lsp"

  2507. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2508. ra_144_decoder_select="audiodsp"

  2509. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2510. ralf_decoder_select="golomb"

  2511. rawvideo_decoder_select="bswapdsp"

  2512. rscc_decoder_select="zlib"

  2513. rtjpeg_decoder_select="me_cmp"

  2514. rv10_decoder_select="h263_decoder"

  2515. rv10_encoder_select="h263_encoder"

  2516. rv20_decoder_select="h263_decoder"

  2517. rv20_encoder_select="h263_encoder"

  2518. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2519. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2520. screenpresso_decoder_select="zlib"

  2521. shorten_decoder_select="bswapdsp"

  2522. sipr_decoder_select="lsp"

  2523. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2524. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2525. sonic_decoder_select="golomb rangecoder"

  2526. sonic_encoder_select="golomb rangecoder"

  2527. sonic_ls_encoder_select="golomb rangecoder"

  2528. sp5x_decoder_select="mjpeg_decoder"

  2529. srgc_decoder_select="zlib"

  2530. svq1_decoder_select="hpeldsp"

  2531. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2532. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2533. svq3_decoder_suggest="zlib"

  2534. tak_decoder_select="audiodsp"

  2535. tdsc_decoder_select="zlib mjpeg_decoder"

  2536. theora_decoder_select="vp3_decoder"

  2537. thp_decoder_select="mjpeg_decoder"

  2538. tiff_decoder_suggest="zlib lzma"

  2539. tiff_encoder_suggest="zlib"

  2540. truehd_decoder_select="mlp_parser"

  2541. truehd_encoder_select="lpc"

  2542. truemotion2_decoder_select="bswapdsp"

  2543. truespeech_decoder_select="bswapdsp"

  2544. tscc_decoder_select="zlib"

  2545. twinvq_decoder_select="mdct lsp sinewin"

  2546. txd_decoder_select="texturedsp"

  2547. utvideo_decoder_select="bswapdsp llviddsp"

  2548. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2549. vble_decoder_select="llviddsp"

  2550. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2551. vc1_qsv_decoder_deps="libmfx"

  2552. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2553. vc1image_decoder_select="vc1_decoder"

  2554. vorbis_decoder_select="mdct"

  2555. vorbis_encoder_select="mdct"

  2556. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2557. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2558. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2559. vp6a_decoder_select="vp6_decoder"

  2560. vp6f_decoder_select="vp6_decoder"

  2561. vp7_decoder_select="h264pred videodsp vp8dsp"

  2562. vp8_decoder_select="h264pred videodsp vp8dsp"

  2563. vp9_decoder_select="videodsp vp9_parser"

  2564. webp_decoder_select="vp8_decoder exif"

  2565. wmalossless_decoder_select="llauddsp"

  2566. wmapro_decoder_select="mdct sinewin wma_freqs"

  2567. wmav1_decoder_select="mdct sinewin wma_freqs"

  2568. wmav1_encoder_select="mdct sinewin wma_freqs"

  2569. wmav2_decoder_select="mdct sinewin wma_freqs"

  2570. wmav2_encoder_select="mdct sinewin wma_freqs"

  2571. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2572. wmv1_decoder_select="h263_decoder"

  2573. wmv1_encoder_select="h263_encoder"

  2574. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2575. wmv2_encoder_select="h263_encoder wmv2dsp"

  2576. wmv3_decoder_select="vc1_decoder"

  2577. wmv3image_decoder_select="wmv3_decoder"

  2578. xma1_decoder_select="wmapro_decoder"

  2579. xma2_decoder_select="wmapro_decoder"

  2580. zerocodec_decoder_select="zlib"

  2581. zlib_decoder_select="zlib"

  2582. zlib_encoder_select="zlib"

  2583. zmbv_decoder_select="zlib"

  2584. zmbv_encoder_select="zlib"

  2585. 

  2586. # platform codecs

  2587. audiotoolbox_deps="AudioToolbox_AudioToolbox_h"

  2588. audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"

  2589. 

  2590. # hardware accelerators

  2591. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2592. cuda_deps_any="dlopen LoadLibrary"

  2593. cuvid_deps="cuda"

  2594. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2595. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2596. dxva2_extralibs="-luser32"

  2597. dxva2_lib_deps="dxva2"

  2598. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"

  2599. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2600. vda_deps="vda_framework pthreads"

  2601. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2602. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2603. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2604. xvmc_deps="X11_extensions_XvMClib_h"

  2605. 

  2606. h263_vaapi_hwaccel_deps="vaapi"

  2607. h263_vaapi_hwaccel_select="h263_decoder"

  2608. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2609. h263_videotoolbox_hwaccel_select="h263_decoder"

  2610. h264_cuvid_hwaccel_deps="cuda cuvid"

  2611. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2612. h264_d3d11va_hwaccel_deps="d3d11va"

  2613. h264_d3d11va_hwaccel_select="h264_decoder"

  2614. h264_dxva2_hwaccel_deps="dxva2"

  2615. h264_dxva2_hwaccel_select="h264_decoder"

  2616. h264_mediacodec_hwaccel_deps="mediacodec"

  2617. h264_mmal_hwaccel_deps="mmal"

  2618. h264_qsv_hwaccel_deps="libmfx"

  2619. h264_vaapi_hwaccel_deps="vaapi"

  2620. h264_vaapi_hwaccel_select="h264_decoder"

  2621. h264_vda_hwaccel_deps="vda"

  2622. h264_vda_hwaccel_select="h264_decoder"

  2623. h264_vda_old_hwaccel_deps="vda"

  2624. h264_vda_old_hwaccel_select="h264_decoder"

  2625. h264_vdpau_hwaccel_deps="vdpau"

  2626. h264_vdpau_hwaccel_select="h264_decoder"

  2627. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2628. h264_videotoolbox_hwaccel_select="h264_decoder"

  2629. hevc_cuvid_hwaccel_deps="cuda cuvid"

  2630. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2631. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2632. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2633. hevc_mediacodec_hwaccel_deps="mediacodec"

  2634. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2635. hevc_dxva2_hwaccel_select="hevc_decoder"

  2636. hevc_qsv_hwaccel_deps="libmfx"

  2637. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2638. hevc_vaapi_hwaccel_select="hevc_decoder"

  2639. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2640. hevc_vdpau_hwaccel_select="hevc_decoder"

  2641. mjpeg_cuvid_hwaccel_deps="cuda cuvid"

  2642. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2643. mpeg_xvmc_hwaccel_deps="xvmc"

  2644. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2645. mpeg1_cuvid_hwaccel_deps="cuda cuvid"

  2646. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2647. mpeg1_vdpau_hwaccel_deps="vdpau"

  2648. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2649. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2650. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2651. mpeg1_xvmc_hwaccel_deps="xvmc"

  2652. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2653. mpeg2_cuvid_hwaccel_deps="cuda cuvid"

  2654. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2655. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2656. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2657. mpeg2_dxva2_hwaccel_deps="dxva2"

  2658. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2659. mpeg2_mmal_hwaccel_deps="mmal"

  2660. mpeg2_qsv_hwaccel_deps="libmfx"

  2661. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2662. mpeg2_vaapi_hwaccel_deps="vaapi"

  2663. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2664. mpeg2_vdpau_hwaccel_deps="vdpau"

  2665. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2666. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2667. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2668. mpeg2_xvmc_hwaccel_deps="xvmc"

  2669. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2670. mpeg4_cuvid_hwaccel_deps="cuda cuvid"

  2671. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2672. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2673. mpeg4_mmal_hwaccel_deps="mmal"

  2674. mpeg4_vaapi_hwaccel_deps="vaapi"

  2675. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2676. mpeg4_vdpau_hwaccel_deps="vdpau"

  2677. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2678. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2679. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2680. vc1_cuvid_hwaccel_deps="cuda cuvid"

  2681. vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2682. vc1_d3d11va_hwaccel_deps="d3d11va"

  2683. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2684. vc1_dxva2_hwaccel_deps="dxva2"

  2685. vc1_dxva2_hwaccel_select="vc1_decoder"

  2686. vc1_mmal_hwaccel_deps="mmal"

  2687. vc1_qsv_hwaccel_deps="libmfx"

  2688. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2689. vc1_vaapi_hwaccel_deps="vaapi"

  2690. vc1_vaapi_hwaccel_select="vc1_decoder"

  2691. vc1_vdpau_hwaccel_deps="vdpau"

  2692. vc1_vdpau_hwaccel_select="vc1_decoder"

  2693. vp8_cuvid_hwaccel_deps="cuda cuvid"

  2694. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2695. vp9_cuvid_hwaccel_deps="cuda cuvid"

  2696. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2697. vp8_mediacodec_hwaccel_deps="mediacodec"

  2698. vp8_qsv_hwaccel_deps="libmfx"

  2699. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2700. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2701. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2702. vp9_dxva2_hwaccel_select="vp9_decoder"

  2703. vp9_mediacodec_hwaccel_deps="mediacodec"

  2704. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2705. vp9_vaapi_hwaccel_select="vp9_decoder"

  2706. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2707. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2708. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2709. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2710. 

  2711. # hardware-accelerated codecs

  2712. omx_deps="dlopen pthreads"

  2713. omx_extralibs='$ldl'

  2714. omx_rpi_select="omx"

  2715. qsvdec_select="qsv"

  2716. qsvenc_select="qsv"

  2717. vaapi_encode_deps="vaapi"

  2718. 

  2719. hwupload_cuda_filter_deps="cuda"

  2720. scale_npp_filter_deps="cuda libnpp"

  2721. scale_cuda_filter_deps="cuda_sdk"

  2722. 

  2723. nvenc_deps="cuda"

  2724. nvenc_deps_any="dlopen LoadLibrary"

  2725. nvenc_encoder_deps="nvenc"

  2726. 

  2727. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2728. h264_cuvid_decoder_deps="cuda cuvid"

  2729. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2730. h264_mediacodec_decoder_deps="mediacodec"

  2731. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2732. h264_mmal_decoder_deps="mmal"

  2733. h264_nvenc_encoder_deps="nvenc"

  2734. h264_omx_encoder_deps="omx"

  2735. h264_qsv_decoder_deps="libmfx"

  2736. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2737. h264_qsv_encoder_deps="libmfx"

  2738. h264_qsv_encoder_select="qsvenc"

  2739. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2740. h264_vaapi_encoder_select="vaapi_encode golomb"

  2741. h264_vda_decoder_deps="vda"

  2742. h264_vda_decoder_select="h264_decoder"

  2743. h264_vdpau_decoder_deps="vdpau"

  2744. h264_vdpau_decoder_select="h264_decoder"

  2745. hevc_cuvid_decoder_deps="cuda cuvid"

  2746. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2747. hevc_mediacodec_decoder_deps="mediacodec"

  2748. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2749. hevc_nvenc_encoder_deps="nvenc"

  2750. hevc_qsv_decoder_deps="libmfx"

  2751. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2752. hevc_qsv_encoder_deps="libmfx"

  2753. hevc_qsv_encoder_select="hevcparse qsvenc"

  2754. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2755. hevc_vaapi_encoder_select="vaapi_encode golomb"

  2756. mjpeg_cuvid_decoder_deps="cuda cuvid"

  2757. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2758. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2759. mpeg1_cuvid_decoder_deps="cuda cuvid"

  2760. mpeg1_vdpau_decoder_deps="vdpau"

  2761. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2762. mpeg2_crystalhd_decoder_select="crystalhd"

  2763. mpeg2_cuvid_decoder_deps="cuda cuvid"

  2764. mpeg2_mmal_decoder_deps="mmal"

  2765. mpeg2_qsv_decoder_deps="libmfx"

  2766. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2767. mpeg2_qsv_encoder_deps="libmfx"

  2768. mpeg2_qsv_encoder_select="qsvenc"

  2769. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2770. mpeg2_vaapi_encoder_select="vaapi_encode"

  2771. mpeg4_crystalhd_decoder_select="crystalhd"

  2772. mpeg4_cuvid_decoder_deps="cuda cuvid"

  2773. mpeg4_mediacodec_decoder_deps="mediacodec"

  2774. mpeg4_mmal_decoder_deps="mmal"

  2775. mpeg4_omx_encoder_deps="omx"

  2776. mpeg4_vdpau_decoder_deps="vdpau"

  2777. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2778. mpeg_vdpau_decoder_deps="vdpau"

  2779. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2780. msmpeg4_crystalhd_decoder_select="crystalhd"

  2781. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2782. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2783. vc1_crystalhd_decoder_select="crystalhd"

  2784. vc1_cuvid_decoder_deps="cuda cuvid"

  2785. vc1_mmal_decoder_deps="mmal"

  2786. vc1_vdpau_decoder_deps="vdpau"

  2787. vc1_vdpau_decoder_select="vc1_decoder"

  2788. vp8_cuvid_decoder_deps="cuda cuvid"

  2789. vp8_mediacodec_decoder_deps="mediacodec"

  2790. vp8_qsv_decoder_deps="libmfx"

  2791. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2792. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2793. vp8_vaapi_encoder_select="vaapi_encode"

  2794. vp9_cuvid_decoder_deps="cuda cuvid"

  2795. vp9_mediacodec_decoder_deps="mediacodec"

  2796. wmv3_crystalhd_decoder_select="crystalhd"

  2797. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2798. 

  2799. # parsers

  2800. h264_parser_select="golomb h264dsp h264parse"

  2801. hevc_parser_select="hevcparse"

  2802. mpegaudio_parser_select="mpegaudioheader"

  2803. mpegvideo_parser_select="mpegvideo"

  2804. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2805. vc1_parser_select="vc1dsp"

  2806. 

  2807. # bitstream_filters

  2808. mjpeg2jpeg_bsf_select="jpegtables"

  2809. 

  2810. # external libraries

  2811. aac_at_decoder_deps="audiotoolbox"

  2812. ac3_at_decoder_deps="audiotoolbox"

  2813. ac3_at_decoder_select="ac3_parser"

  2814. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2815. alac_at_decoder_deps="audiotoolbox"

  2816. amr_nb_at_decoder_deps="audiotoolbox"

  2817. avisynth_deps_any="dlopen LoadLibrary"

  2818. avisynth_demuxer_deps="avisynth"

  2819. avisynth_demuxer_select="riffdec"

  2820. eac3_at_decoder_deps="audiotoolbox"

  2821. eac3_at_decoder_select="ac3_parser"

  2822. gsm_ms_at_decoder_deps="audiotoolbox"

  2823. ilbc_at_decoder_deps="audiotoolbox"

  2824. mp1_at_decoder_deps="audiotoolbox"

  2825. mp2_at_decoder_deps="audiotoolbox"

  2826. mp3_at_decoder_deps="audiotoolbox"

  2827. mp1_at_decoder_select="mpegaudioheader"

  2828. mp2_at_decoder_select="mpegaudioheader"

  2829. mp3_at_decoder_select="mpegaudioheader"

  2830. pcm_alaw_at_decoder_deps="audiotoolbox"

  2831. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2832. qdmc_at_decoder_deps="audiotoolbox"

  2833. qdm2_at_decoder_deps="audiotoolbox"

  2834. aac_at_encoder_deps="audiotoolbox"

  2835. aac_at_encoder_select="audio_frame_queue"

  2836. alac_at_encoder_deps="audiotoolbox"

  2837. alac_at_encoder_select="audio_frame_queue"

  2838. ilbc_at_encoder_deps="audiotoolbox"

  2839. ilbc_at_encoder_select="audio_frame_queue"

  2840. pcm_alaw_at_encoder_deps="audiotoolbox"

  2841. pcm_alaw_at_encoder_select="audio_frame_queue"

  2842. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2843. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2844. chromaprint_muxer_deps="chromaprint"

  2845. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2846. libcelt_decoder_deps="libcelt"

  2847. libfdk_aac_decoder_deps="libfdk_aac"

  2848. libfdk_aac_encoder_deps="libfdk_aac"

  2849. libfdk_aac_encoder_select="audio_frame_queue"

  2850. libgme_demuxer_deps="libgme"

  2851. libgsm_decoder_deps="libgsm"

  2852. libgsm_encoder_deps="libgsm"

  2853. libgsm_ms_decoder_deps="libgsm"

  2854. libgsm_ms_encoder_deps="libgsm"

  2855. libilbc_decoder_deps="libilbc"

  2856. libilbc_encoder_deps="libilbc"

  2857. libkvazaar_encoder_deps="libkvazaar"

  2858. libmodplug_demuxer_deps="libmodplug"

  2859. libmp3lame_encoder_deps="libmp3lame"

  2860. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2861. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2862. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2863. libopencore_amrnb_encoder_select="audio_frame_queue"

  2864. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2865. libopenh264_decoder_deps="libopenh264"

  2866. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2867. libopenh264_encoder_deps="libopenh264"

  2868. libopenjpeg_decoder_deps="libopenjpeg"

  2869. libopenjpeg_encoder_deps="libopenjpeg"

  2870. libopenmpt_demuxer_deps="libopenmpt"

  2871. libopus_decoder_deps="libopus"

  2872. libopus_encoder_deps="libopus"

  2873. libopus_encoder_select="audio_frame_queue"

  2874. librsvg_decoder_deps="librsvg"

  2875. libshine_encoder_deps="libshine"

  2876. libshine_encoder_select="audio_frame_queue"

  2877. libspeex_decoder_deps="libspeex"

  2878. libspeex_encoder_deps="libspeex"

  2879. libspeex_encoder_select="audio_frame_queue"

  2880. libtheora_encoder_deps="libtheora"

  2881. libtwolame_encoder_deps="libtwolame"

  2882. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2883. libvorbis_decoder_deps="libvorbis"

  2884. libvorbis_encoder_deps="libvorbis"

  2885. libvorbis_encoder_select="audio_frame_queue"

  2886. libvpx_vp8_decoder_deps="libvpx"

  2887. libvpx_vp8_encoder_deps="libvpx"

  2888. libvpx_vp9_decoder_deps="libvpx"

  2889. libvpx_vp9_encoder_deps="libvpx"

  2890. libwavpack_encoder_deps="libwavpack"

  2891. libwavpack_encoder_select="audio_frame_queue"

  2892. libwebp_encoder_deps="libwebp"

  2893. libwebp_anim_encoder_deps="libwebp"

  2894. libx262_encoder_deps="libx262"

  2895. libx264_encoder_deps="libx264"

  2896. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2897. libx264rgb_encoder_select="libx264_encoder"

  2898. libx265_encoder_deps="libx265"

  2899. libxavs_encoder_deps="libxavs"

  2900. libxvid_encoder_deps="libxvid"

  2901. libzvbi_teletext_decoder_deps="libzvbi"

  2902. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2903. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2904. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2905. videotoolbox_encoder_suggest="vda_framework vt_bt2020"

  2906. vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"

  2907. 

  2908. # demuxers / muxers

  2909. ac3_demuxer_select="ac3_parser"

  2910. aiff_muxer_select="iso_media"

  2911. asf_demuxer_select="riffdec"

  2912. asf_o_demuxer_select="riffdec"

  2913. asf_muxer_select="riffenc"

  2914. asf_stream_muxer_select="asf_muxer"

  2915. avi_demuxer_select="iso_media riffdec exif"

  2916. avi_muxer_select="riffenc"

  2917. caf_demuxer_select="iso_media riffdec"

  2918. caf_muxer_select="iso_media"

  2919. dash_muxer_select="mp4_muxer"

  2920. dirac_demuxer_select="dirac_parser"

  2921. dts_demuxer_select="dca_parser"

  2922. dtshd_demuxer_select="dca_parser"

  2923. dv_demuxer_select="dvprofile"

  2924. dv_muxer_select="dvprofile"

  2925. dxa_demuxer_select="riffdec"

  2926. eac3_demuxer_select="ac3_parser"

  2927. f4v_muxer_select="mov_muxer"

  2928. fifo_muxer_deps="threads"

  2929. flac_demuxer_select="flac_parser"

  2930. hds_muxer_select="flv_muxer"

  2931. hls_muxer_select="mpegts_muxer"

  2932. image2_alias_pix_demuxer_select="image2_demuxer"

  2933. image2_brender_pix_demuxer_select="image2_demuxer"

  2934. ipod_muxer_select="mov_muxer"

  2935. ismv_muxer_select="mov_muxer"

  2936. matroska_audio_muxer_select="matroska_muxer"

  2937. matroska_demuxer_select="iso_media riffdec"

  2938. matroska_demuxer_suggest="bzlib lzo zlib"

  2939. matroska_muxer_select="iso_media riffenc"

  2940. mmf_muxer_select="riffenc"

  2941. mov_demuxer_select="iso_media riffdec"

  2942. mov_demuxer_suggest="zlib"

  2943. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2944. mp3_demuxer_select="mpegaudio_parser"

  2945. mp3_muxer_select="mpegaudioheader"

  2946. mp4_muxer_select="mov_muxer"

  2947. mpegts_demuxer_select="iso_media"

  2948. mpegts_muxer_select="adts_muxer latm_muxer"

  2949. mpegtsraw_demuxer_select="mpegts_demuxer"

  2950. mxf_d10_muxer_select="mxf_muxer"

  2951. mxf_opatom_muxer_select="mxf_muxer"

  2952. nut_muxer_select="riffenc"

  2953. nuv_demuxer_select="riffdec"

  2954. oga_muxer_select="ogg_muxer"

  2955. ogg_demuxer_select="dirac_parse"

  2956. ogv_muxer_select="ogg_muxer"

  2957. opus_muxer_select="ogg_muxer"

  2958. psp_muxer_select="mov_muxer"

  2959. rtp_demuxer_select="sdp_demuxer"

  2960. rtp_muxer_select="golomb"

  2961. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  2962. rtsp_demuxer_select="http_protocol rtpdec"

  2963. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2964. sap_demuxer_select="sdp_demuxer"

  2965. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2966. sdp_demuxer_select="rtpdec"

  2967. smoothstreaming_muxer_select="ismv_muxer"

  2968. spdif_muxer_select="aac_parser"

  2969. spx_muxer_select="ogg_muxer"

  2970. swf_demuxer_suggest="zlib"

  2971. tak_demuxer_select="tak_parser"

  2972. tg2_muxer_select="mov_muxer"

  2973. tgp_muxer_select="mov_muxer"

  2974. vobsub_demuxer_select="mpegps_demuxer"

  2975. w64_demuxer_select="wav_demuxer"

  2976. w64_muxer_select="wav_muxer"

  2977. wav_demuxer_select="riffdec"

  2978. wav_muxer_select="riffenc"

  2979. webm_muxer_select="iso_media riffenc"

  2980. webm_dash_manifest_demuxer_select="matroska_demuxer"

  2981. wtv_demuxer_select="mpegts_demuxer riffdec"

  2982. wtv_muxer_select="mpegts_muxer riffenc"

  2983. xmv_demuxer_select="riffdec"

  2984. xwma_demuxer_select="riffdec"

  2985. 

  2986. # indevs / outdevs

  2987. alsa_indev_deps="alsa"

  2988. alsa_outdev_deps="alsa"

  2989. avfoundation_indev_deps="pthreads"

  2990. avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"

  2991. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2992. caca_outdev_deps="libcaca"

  2993. decklink_indev_deps="decklink threads"

  2994. decklink_indev_extralibs="-lstdc++"

  2995. decklink_outdev_deps="decklink threads"

  2996. decklink_outdev_extralibs="-lstdc++"

  2997. dshow_indev_deps="IBaseFilter"

  2998. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2999. dv1394_indev_deps="dv1394"

  3000. dv1394_indev_select="dv_demuxer"

  3001. fbdev_indev_deps="linux_fb_h"

  3002. fbdev_outdev_deps="linux_fb_h"

  3003. gdigrab_indev_deps="CreateDIBSection"

  3004. gdigrab_indev_extralibs="-lgdi32"

  3005. gdigrab_indev_select="bmp_decoder"

  3006. iec61883_indev_deps="libiec61883"

  3007. jack_indev_deps="jack"

  3008. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3009. lavfi_indev_deps="avfilter"

  3010. libcdio_indev_deps="libcdio"

  3011. libdc1394_indev_deps="libdc1394"

  3012. libv4l2_indev_deps="libv4l2"

  3013. openal_indev_deps="openal"

  3014. opengl_outdev_deps="opengl"

  3015. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  3016. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  3017. pulse_indev_deps="libpulse"

  3018. pulse_outdev_deps="libpulse"

  3019. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  3020. qtkit_indev_select="qtkit"

  3021. sdl2_outdev_deps="sdl2"

  3022. sndio_indev_deps="sndio"

  3023. sndio_outdev_deps="sndio"

  3024. v4l_indev_deps="linux_videodev_h"

  3025. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3026. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3027. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3028. xcbgrab_indev_deps="libxcb"

  3029. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3030. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3031. 

  3032. # protocols

  3033. async_protocol_deps="threads"

  3034. bluray_protocol_deps="libbluray"

  3035. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  3036. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3037. ffrtmpcrypt_protocol_select="tcp_protocol"

  3038. ffrtmphttp_protocol_deps="!librtmp_protocol"

  3039. ffrtmphttp_protocol_select="http_protocol"

  3040. ftp_protocol_select="tcp_protocol"

  3041. gopher_protocol_select="network"

  3042. http_protocol_select="tcp_protocol"

  3043. httpproxy_protocol_select="tcp_protocol"

  3044. https_protocol_select="tls_protocol"

  3045. icecast_protocol_select="http_protocol"

  3046. librtmp_protocol_deps="librtmp"

  3047. librtmpe_protocol_deps="librtmp"

  3048. librtmps_protocol_deps="librtmp"

  3049. librtmpt_protocol_deps="librtmp"

  3050. librtmpte_protocol_deps="librtmp"

  3051. libsmbclient_protocol_deps="libsmbclient gplv3"

  3052. libssh_protocol_deps="libssh"

  3053. mmsh_protocol_select="http_protocol"

  3054. mmst_protocol_select="network"

  3055. rtmp_protocol_deps="!librtmp_protocol"

  3056. rtmp_protocol_select="tcp_protocol"

  3057. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3058. rtmps_protocol_deps="!librtmp_protocol"

  3059. rtmps_protocol_select="tls_protocol"

  3060. rtmpt_protocol_select="ffrtmphttp_protocol"

  3061. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3062. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3063. rtp_protocol_select="udp_protocol"

  3064. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3065. sctp_protocol_select="network"

  3066. srtp_protocol_select="rtp_protocol srtp"

  3067. tcp_protocol_select="network"

  3068. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  3069. tls_gnutls_protocol_select="tcp_protocol"

  3070. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  3071. tls_openssl_protocol_select="tcp_protocol"

  3072. tls_schannel_protocol_deps="schannel"

  3073. tls_schannel_protocol_select="tcp_protocol"

  3074. tls_securetransport_protocol_deps="securetransport"

  3075. tls_securetransport_protocol_select="tcp_protocol"

  3076. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3077. udp_protocol_select="network"

  3078. udplite_protocol_select="network"

  3079. unix_protocol_deps="sys_un_h"

  3080. unix_protocol_select="network"

  3081. 

  3082. # filters

  3083. afftfilt_filter_deps="avcodec"

  3084. afftfilt_filter_select="fft"

  3085. afir_filter_deps="avcodec"

  3086. afir_filter_select="fft"

  3087. amovie_filter_deps="avcodec avformat"

  3088. aresample_filter_deps="swresample"

  3089. ass_filter_deps="libass"

  3090. atempo_filter_deps="avcodec"

  3091. atempo_filter_select="rdft"

  3092. azmq_filter_deps="libzmq"

  3093. blackframe_filter_deps="gpl"

  3094. boxblur_filter_deps="gpl"

  3095. bs2b_filter_deps="libbs2b"

  3096. colormatrix_filter_deps="gpl"

  3097. cover_rect_filter_deps="avcodec avformat gpl"

  3098. cropdetect_filter_deps="gpl"

  3099. deinterlace_qsv_filter_deps="libmfx"

  3100. deinterlace_vaapi_filter_deps="vaapi"

  3101. delogo_filter_deps="gpl"

  3102. deshake_filter_select="pixelutils"

  3103. drawtext_filter_deps="libfreetype"

  3104. elbg_filter_deps="avcodec"

  3105. eq_filter_deps="gpl"

  3106. fftfilt_filter_deps="avcodec"

  3107. fftfilt_filter_select="rdft"

  3108. find_rect_filter_deps="avcodec avformat gpl"

  3109. firequalizer_filter_deps="avcodec"

  3110. firequalizer_filter_select="rdft"

  3111. flite_filter_deps="libflite"

  3112. framerate_filter_select="pixelutils"

  3113. frei0r_filter_deps="frei0r dlopen"

  3114. frei0r_src_filter_deps="frei0r dlopen"

  3115. fspp_filter_deps="gpl"

  3116. geq_filter_deps="gpl"

  3117. histeq_filter_deps="gpl"

  3118. hqdn3d_filter_deps="gpl"

  3119. interlace_filter_deps="gpl"

  3120. kerndeint_filter_deps="gpl"

  3121. ladspa_filter_deps="ladspa dlopen"

  3122. mcdeint_filter_deps="avcodec gpl"

  3123. movie_filter_deps="avcodec avformat"

  3124. mpdecimate_filter_deps="gpl"

  3125. mpdecimate_filter_select="pixelutils"

  3126. mptestsrc_filter_deps="gpl"

  3127. negate_filter_deps="lut_filter"

  3128. nnedi_filter_deps="gpl"

  3129. ocr_filter_deps="libtesseract"

  3130. ocv_filter_deps="libopencv"

  3131. owdenoise_filter_deps="gpl"

  3132. pan_filter_deps="swresample"

  3133. perspective_filter_deps="gpl"

  3134. phase_filter_deps="gpl"

  3135. pp7_filter_deps="gpl"

  3136. pp_filter_deps="gpl postproc"

  3137. pullup_filter_deps="gpl"

  3138. removelogo_filter_deps="avcodec avformat swscale"

  3139. repeatfields_filter_deps="gpl"

  3140. resample_filter_deps="avresample"

  3141. rubberband_filter_deps="librubberband"

  3142. sab_filter_deps="gpl swscale"

  3143. scale2ref_filter_deps="swscale"

  3144. scale_filter_deps="swscale"

  3145. scale_qsv_filter_deps="libmfx"

  3146. select_filter_select="pixelutils"

  3147. showcqt_filter_deps="avcodec avformat swscale"

  3148. showcqt_filter_select="fft"

  3149. showfreqs_filter_deps="avcodec"

  3150. showfreqs_filter_select="fft"

  3151. showspectrum_filter_deps="avcodec"

  3152. showspectrum_filter_select="fft"

  3153. showspectrumpic_filter_deps="avcodec"

  3154. showspectrumpic_filter_select="fft"

  3155. signature_filter_deps="gpl avcodec avformat"

  3156. smartblur_filter_deps="gpl swscale"

  3157. sofalizer_filter_deps="netcdf avcodec"

  3158. sofalizer_filter_select="fft"

  3159. spectrumsynth_filter_deps="avcodec"

  3160. spectrumsynth_filter_select="fft"

  3161. spp_filter_deps="gpl avcodec"

  3162. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3163. stereo3d_filter_deps="gpl"

  3164. subtitles_filter_deps="avformat avcodec libass"

  3165. super2xsai_filter_deps="gpl"

  3166. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3167. tinterlace_filter_deps="gpl"

  3168. tinterlace_merge_test_deps="tinterlace_filter"

  3169. tinterlace_pad_test_deps="tinterlace_filter"

  3170. uspp_filter_deps="gpl avcodec"

  3171. vaguedenoiser_filter_deps="gpl"

  3172. vidstabdetect_filter_deps="libvidstab"

  3173. vidstabtransform_filter_deps="libvidstab"

  3174. zmq_filter_deps="libzmq"

  3175. zoompan_filter_deps="swscale"

  3176. zscale_filter_deps="libzimg"

  3177. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3178. 

  3179. # examples

  3180. avio_dir_cmd_deps="avformat avutil"

  3181. avio_reading_deps="avformat avcodec avutil"

  3182. decode_audio_example_deps="avcodec avutil"

  3183. decode_video_example_deps="avcodec avutil"

  3184. demuxing_decoding_example_deps="avcodec avformat avutil"

  3185. encode_audio_example_deps="avcodec avutil"

  3186. encode_video_example_deps="avcodec avutil"

  3187. extract_mvs_example_deps="avcodec avformat avutil"

  3188. filter_audio_example_deps="avfilter avutil"

  3189. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3190. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3191. http_multiclient_example_deps="avformat avutil fork"

  3192. metadata_example_deps="avformat avutil"

  3193. muxing_example_deps="avcodec avformat avutil swscale"

  3194. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3195. remuxing_example_deps="avcodec avformat avutil"

  3196. resampling_audio_example_deps="avutil swresample"

  3197. scaling_video_example_deps="avutil swscale"

  3198. transcode_aac_example_deps="avcodec avformat swresample"

  3199. transcoding_example_deps="avfilter avcodec avformat avutil"

  3200. 

  3201. # libraries, in linking order

  3202. avcodec_deps="avutil"

  3203. avcodec_select="null_bsf"

  3204. avdevice_deps="avformat avcodec avutil"

  3205. avfilter_deps="avutil"

  3206. avformat_deps="avcodec avutil"

  3207. avresample_deps="avutil"

  3208. postproc_deps="avutil gpl"

  3209. swresample_deps="avutil"

  3210. swscale_deps="avutil"

  3211. 

  3212. # programs

  3213. ffmpeg_deps="avcodec avfilter avformat swresample"

  3214. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3215.                null_filter

  3216.                trim_filter"

  3217. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3218. ffplay_extralibs='$sdl2_extralibs'

  3219. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3220. ffprobe_deps="avcodec avformat"

  3221. ffserver_deps="avformat fork sarestart"

  3222. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3223. 

  3224. # documentation

  3225. podpages_deps="perl"

  3226. manpages_deps="perl pod2man"

  3227. htmlpages_deps="perl"

  3228. htmlpages_deps_any="makeinfo_html texi2html"

  3229. txtpages_deps="perl makeinfo"

  3230. doc_deps_any="manpages htmlpages podpages txtpages"

  3231. 

  3232. # default parameters

  3233. 

  3234. logfile="ffbuild/config.log"

  3235. 

  3236. # installation paths

  3237. prefix_default="/usr/local"

  3238. bindir_default='${prefix}/bin'

  3239. datadir_default='${prefix}/share/ffmpeg'

  3240. docdir_default='${prefix}/share/doc/ffmpeg'

  3241. incdir_default='${prefix}/include'

  3242. libdir_default='${prefix}/lib'

  3243. mandir_default='${prefix}/share/man'

  3244. 

  3245. # toolchain

  3246. ar_default="ar"

  3247. cc_default="gcc"

  3248. cxx_default="g++"

  3249. host_cc_default="gcc"

  3250. doxygen_default="doxygen"

  3251. install="install"

  3252. ln_s_default="ln -s -f"

  3253. nm_default="nm -g"

  3254. objformat="elf"

  3255. pkg_config_default=pkg-config

  3256. ranlib_default="ranlib"

  3257. strip_default="strip"

  3258. version_script='--version-script'

  3259. yasmexe_default="yasm"

  3260. windres_default="windres"

  3261. nvcc_default="nvcc"

  3262. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3263. 

  3264. # OS

  3265. target_os_default=$(tolower $(uname -s))

  3266. host_os=$target_os_default

  3267. 

  3268. # machine

  3269. if test "$target_os_default" = aix; then

  3270.     arch_default=$(uname -p)

  3271.     strip_default="strip -X32_64"

  3272. else

  3273.     arch_default=$(uname -m)

  3274. fi

  3275. cpu="generic"

  3276. intrinsics="none"

  3277. 

  3278. # configurable options

  3279. enable $PROGRAM_LIST

  3280. enable $DOCUMENT_LIST

  3281. enable $EXAMPLE_LIST

  3282. enable $(filter_out avresample $LIBRARY_LIST)

  3283. enable stripping

  3284. 

  3285. enable asm

  3286. enable debug

  3287. enable doc

  3288. enable faan faandct faanidct

  3289. enable optimizations

  3290. enable runtime_cpudetect

  3291. enable safe_bitstream_reader

  3292. enable static

  3293. enable swscale_alpha

  3294. enable valgrind_backtrace

  3295. 

  3296. sws_max_filter_size_default=256

  3297. set_default sws_max_filter_size

  3298. 

  3299. # build settings

  3300. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3301. LIBPREF="lib"

  3302. LIBSUF=".a"

  3303. FULLNAME='$(NAME)$(BUILDSUF)'

  3304. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3305. SLIBPREF="lib"

  3306. SLIBSUF=".so"

  3307. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3308. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3309. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3310. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3311. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3312. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3313. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3314. 

  3315. asflags_filter=echo

  3316. cflags_filter=echo

  3317. ldflags_filter=echo

  3318. 

  3319. AS_C='-c'

  3320. AS_O='-o $@'

  3321. CC_C='-c'

  3322. CC_E='-E -o $@'

  3323. CC_O='-o $@'

  3324. CXX_C='-c'

  3325. CXX_O='-o $@'

  3326. OBJCC_C='-c'

  3327. OBJCC_E='-E -o $@'

  3328. OBJCC_O='-o $@'

  3329. LD_O='-o $@'

  3330. LD_LIB='-l%'

  3331. LD_PATH='-L'

  3332. HOSTCC_C='-c'

  3333. HOSTCC_E='-E -o $@'

  3334. HOSTCC_O='-o $@'

  3335. HOSTLD_O='-o $@'

  3336. NVCC_C='-c'

  3337. NVCC_O='-o $@'

  3338. 

  3339. host_extralibs='-lm'

  3340. host_cflags_filter=echo

  3341. host_ldflags_filter=echo

  3342. 

  3343. target_path='$(CURDIR)'

  3344. 

  3345. # since the object filename is not given with the -MM flag, the compiler

  3346. # is only able to print the basename, and we must add the path ourselves

  3347. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3348. DEPFLAGS='-MM'

  3349. 

  3350. # find source path

  3351. if test -f configure; then

  3352.     source_path=.

  3353. else

  3354.     source_path=$(cd $(dirname "$0"); pwd)

  3355.     case "$source_path" in

  3356.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3357.     esac

  3358.     test -e "$source_path/config.h" &&

  3359.         die "Out of tree builds are impossible with config.h in source dir."

  3360. fi

  3361. 

  3362. for v in "$@"; do

  3363.     r=${v#*=}

  3364.     l=${v%"$r"}

  3365.     r=$(sh_quote "$r")

  3366.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3367. done

  3368. 

  3369. find_things(){

  3370.     thing=$1

  3371.     pattern=$2

  3372.     file=$source_path/$3

  3373.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3374. }

  3375. 

  3376. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3377. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3378. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3379. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3380. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3381. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3382. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3383. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3384. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3385. 

  3386. find_things_extern(){

  3387.     thing=$1

  3388.     pattern=$2

  3389.     file=$source_path/$3

  3390.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3391. }

  3392. 

  3393. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3394. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3395. 

  3396. ALL_COMPONENTS="

  3397.     $BSF_LIST

  3398.     $DECODER_LIST

  3399.     $DEMUXER_LIST

  3400.     $ENCODER_LIST

  3401.     $FILTER_LIST

  3402.     $HWACCEL_LIST

  3403.     $INDEV_LIST

  3404.     $MUXER_LIST

  3405.     $OUTDEV_LIST

  3406.     $PARSER_LIST

  3407.     $PROTOCOL_LIST

  3408. "

  3409. 

  3410. for n in $COMPONENT_LIST; do

  3411.     v=$(toupper ${n%s})_LIST

  3412.     eval enable \$$v

  3413.     eval ${n}_if_any="\$$v"

  3414. done

  3415. 

  3416. enable $ARCH_EXT_LIST

  3417. 

  3418. die_unknown(){

  3419.     echo "Unknown option \"$1\"."

  3420.     echo "See $0 --help for available options."

  3421.     exit 1

  3422. }

  3423. 

  3424. print_in_columns() {

  3425.     cols=$(expr $ncols / 24)

  3426.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3427. }

  3428. 

  3429. show_list() {

  3430.     suffix=_$1

  3431.     shift

  3432.     echo $* | sed s/$suffix//g | print_in_columns

  3433.     exit 0

  3434. }

  3435. 

  3436. rand_list(){

  3437.     IFS=', '

  3438.     set -- $*

  3439.     unset IFS

  3440.     for thing; do

  3441.         comp=${thing%:*}

  3442.         prob=${thing#$comp}

  3443.         prob=${prob#:}

  3444.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3445.         echo "prob ${prob:-0.5}"

  3446.         printf '%s\n' $comp

  3447.     done

  3448. }

  3449. 

  3450. do_random(){

  3451.     action=$1

  3452.     shift

  3453.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3454.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3455. }

  3456. 

  3457. for opt do

  3458.     optval="${opt#*=}"

  3459.     case "$opt" in

  3460.         --extra-ldflags=*)

  3461.             add_ldflags $optval

  3462.         ;;

  3463.         --extra-ldexeflags=*)

  3464.             add_ldexeflags $optval

  3465.         ;;

  3466.         --extra-ldlibflags=*)

  3467.             add_ldlibflags $optval

  3468.         ;;

  3469.         --extra-libs=*)

  3470.             add_extralibs $optval

  3471.         ;;

  3472.         --disable-devices)

  3473.             disable $INDEV_LIST $OUTDEV_LIST

  3474.         ;;

  3475.         --enable-debug=*)

  3476.             debuglevel="$optval"

  3477.         ;;

  3478.         --disable-programs)

  3479.             disable $PROGRAM_LIST

  3480.         ;;

  3481.         --disable-everything)

  3482.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3483.         ;;

  3484.         --disable-all)

  3485.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3486.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3487.             enable avutil

  3488.         ;;

  3489.         --enable-random|--disable-random)

  3490.             action=${opt%%-random}

  3491.             do_random ${action#--} $COMPONENT_LIST

  3492.         ;;

  3493.         --enable-random=*|--disable-random=*)

  3494.             action=${opt%%-random=*}

  3495.             do_random ${action#--} $optval

  3496.         ;;

  3497.         --enable-*=*|--disable-*=*)

  3498.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3499.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3500.             eval list=\$$(toupper $thing)_LIST

  3501.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3502.             list=$(filter "$name" $list)

  3503.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3504.             $action $list

  3505.         ;;

  3506.         --enable-?*|--disable-?*)

  3507.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3508.             if is_in $option $COMPONENT_LIST; then

  3509.                 test $action = disable && action=unset

  3510.                 eval $action \$$(toupper ${option%s})_LIST

  3511.             elif is_in $option $CMDLINE_SELECT; then

  3512.                 $action $option

  3513.             else

  3514.                 die_unknown $opt

  3515.             fi

  3516.         ;;

  3517.         --list-*)

  3518.             NAME="${opt#--list-}"

  3519.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3520.             NAME=${NAME%s}

  3521.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3522.         ;;

  3523.         --help|-h) show_help

  3524.         ;;

  3525.         --quiet|-q) quiet=yes

  3526.         ;;

  3527.         --fatal-warnings) enable fatal_warnings

  3528.         ;;

  3529.         --libfuzzer=*)

  3530.             libfuzzer_path="$optval"

  3531.         ;;

  3532.         *)

  3533.             optname="${opt%%=*}"

  3534.             optname="${optname#--}"

  3535.             optname=$(echo "$optname" | sed 's/-/_/g')

  3536.             if is_in $optname $CMDLINE_SET; then

  3537.                 eval $optname='$optval'

  3538.             elif is_in $optname $CMDLINE_APPEND; then

  3539.                 append $optname "$optval"

  3540.             else

  3541.                 die_unknown $opt

  3542.             fi

  3543.         ;;

  3544.     esac

  3545. done

  3546. 

  3547. for e in $env; do

  3548.     eval "export $e"

  3549. done

  3550. 

  3551. # Mark specifically enabled, but normally autodetected libraries as requested.

  3552. for lib in $AUTODETECT_LIBS; do

  3553.     enabled $lib && request $lib

  3554. done

  3555. 

  3556. # Enable platform codecs by default.

  3557. enable_weak audiotoolbox

  3558. 

  3559. # Enable hwaccels by default.

  3560. enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc

  3561. enable_weak xlib

  3562. 

  3563. enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder

  3564. 

  3565. disabled logging && logfile=/dev/null

  3566. 

  3567. die_license_disabled() {

  3568.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3569. }

  3570. 

  3571. die_license_disabled_gpl() {

  3572.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3573. }

  3574. 

  3575. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3576. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3577. 

  3578. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3579. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3580. 

  3581. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3582. 

  3583. # Disable all the library-specific components if the library itself

  3584. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3585. 

  3586. disable_components(){

  3587.     disabled ${1} && disable $(

  3588.         eval components="\$$(toupper ${1})_COMPONENTS"

  3589.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3590.     )

  3591. }

  3592. 

  3593. map 'disable_components $v' $LIBRARY_LIST

  3594. 

  3595. mkdir -p ffbuild

  3596. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3597. set >> $logfile

  3598. 

  3599. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3600. 

  3601. enabled ossfuzz && {

  3602.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3603.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3604. }

  3605. 

  3606. case "$toolchain" in

  3607.     *-asan)

  3608.         cc_default="${toolchain%-asan}"

  3609.         add_cflags  -fsanitize=address

  3610.         add_ldflags -fsanitize=address

  3611.     ;;

  3612.     *-msan)

  3613.         cc_default="${toolchain%-msan}"

  3614.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3615.         add_ldflags -fsanitize=memory

  3616.     ;;

  3617.     *-tsan)

  3618.         cc_default="${toolchain%-tsan}"

  3619.         add_cflags  -fsanitize=thread -fPIE

  3620.         add_ldflags -fsanitize=thread -pie

  3621.         case "$toolchain" in

  3622.             gcc-tsan)

  3623.                 add_cflags  -fPIC

  3624.                 add_ldflags -fPIC

  3625.                 ;;

  3626.         esac

  3627.     ;;

  3628.     *-usan)

  3629.         cc_default="${toolchain%-usan}"

  3630.         add_cflags  -fsanitize=undefined

  3631.         add_ldflags -fsanitize=undefined

  3632.     ;;

  3633.     valgrind-*)

  3634.         target_exec_default="valgrind"

  3635.         case "$toolchain" in

  3636.             valgrind-massif)

  3637.                 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"

  3638.                 ;;

  3639.             valgrind-memcheck)

  3640.                 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"

  3641.                 ;;

  3642.         esac

  3643.     ;;

  3644.     msvc)

  3645.         # Check whether the current MSVC version needs the C99 converter.

  3646.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3647.         # support enough of C99 to build ffmpeg. Default to the new

  3648.         # behaviour if the regexp was unable to match anything, since this

  3649.         # successfully parses the version number of existing supported

  3650.         # versions that require the converter (MSVC 2010 and 2012).

  3651.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3652.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3653.             cc_default="cl"

  3654.             cxx_default="cl"

  3655.         else

  3656.             cc_default="c99wrap cl"

  3657.             cxx_default="c99wrap cl"

  3658.         fi

  3659.         ld_default="$source_path/compat/windows/mslink"

  3660.         nm_default="dumpbin -symbols"

  3661.         ar_default="lib"

  3662.         case "$arch" in

  3663.         arm*)

  3664.             as_default="armasm"

  3665.             ;;

  3666.         esac

  3667.         target_os_default="win32"

  3668.         # Use a relative path for TMPDIR. This makes sure all the

  3669.         # ffconf temp files are written with a relative path, avoiding

  3670.         # issues with msys/win32 path conversion for MSVC parameters

  3671.         # such as -Fo<file> or -out:<file>.

  3672.         TMPDIR=.

  3673.     ;;

  3674.     icl)

  3675.         cc_default="icl"

  3676.         ld_default="xilink"

  3677.         nm_default="dumpbin -symbols"

  3678.         ar_default="xilib"

  3679.         target_os_default="win32"

  3680.         TMPDIR=.

  3681.     ;;

  3682.     gcov)

  3683.         add_cflags  -fprofile-arcs -ftest-coverage

  3684.         add_ldflags -fprofile-arcs -ftest-coverage

  3685.     ;;

  3686.     llvm-cov)

  3687.         add_cflags -fprofile-arcs -ftest-coverage

  3688.         add_ldflags --coverage

  3689.     ;;

  3690.     hardened)

  3691.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3692.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3693.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3694.         add_cflags   -fPIE

  3695.         add_ldexeflags -fPIE -pie

  3696.     ;;

  3697.     ?*)

  3698.         die "Unknown toolchain $toolchain"

  3699.     ;;

  3700. esac

  3701. 

  3702. test -n "$cross_prefix" && enable cross_compile

  3703. 

  3704. if enabled cross_compile; then

  3705.     test -n "$arch" && test -n "$target_os" ||

  3706.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3707. fi

  3708. 

  3709. ar_default="${cross_prefix}${ar_default}"

  3710. cc_default="${cross_prefix}${cc_default}"

  3711. cxx_default="${cross_prefix}${cxx_default}"

  3712. nm_default="${cross_prefix}${nm_default}"

  3713. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3714. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3715.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3716. else

  3717.     ranlib_default="${cross_prefix}${ranlib_default}"

  3718. fi

  3719. strip_default="${cross_prefix}${strip_default}"

  3720. windres_default="${cross_prefix}${windres_default}"

  3721. 

  3722. sysinclude_default="${sysroot}/usr/include"

  3723. 

  3724. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3725.     target_exec target_os yasmexe nvcc

  3726. enabled cross_compile || host_cc_default=$cc

  3727. set_default host_cc

  3728. 

  3729. pkg_config_fail_message=""

  3730. if ! $pkg_config --version >/dev/null 2>&1; then

  3731.     warn "$pkg_config not found, library detection may fail."

  3732.     pkg_config=false

  3733. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3734.     pkg_config_fail_message="

  3735. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3736. fi

  3737. 

  3738. if test $doxygen != $doxygen_default && \

  3739.   ! $doxygen --version >/dev/null 2>&1; then

  3740.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3741. fi

  3742. 

  3743. exesuf() {

  3744.     case $1 in

  3745.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3746.     esac

  3747. }

  3748. 

  3749. EXESUF=$(exesuf $target_os)

  3750. HOSTEXESUF=$(exesuf $host_os)

  3751. 

  3752. # set temporary file name

  3753. : ${TMPDIR:=$TEMPDIR}

  3754. : ${TMPDIR:=$TMP}

  3755. : ${TMPDIR:=/tmp}

  3756. 

  3757. if [ -n "$tempprefix" ] ; then

  3758.     mktemp(){

  3759.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3760.         echo "$tmpname"

  3761.         mkdir "$tmpname"

  3762.     }

  3763. elif ! check_cmd mktemp -u XXXXXX; then

  3764.     # simple replacement for missing mktemp

  3765.     # NOT SAFE FOR GENERAL USE

  3766.     mktemp(){

  3767.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3768.         echo "$tmpname"

  3769.         mkdir "$tmpname"

  3770.     }

  3771. fi

  3772. 

  3773. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3774.     die "Unable to create temporary directory in $TMPDIR."

  3775. 

  3776. tmpfile(){

  3777.     tmp="${FFTMPDIR}/test"$2

  3778.     (set -C; exec > $tmp) 2> /dev/null ||

  3779.         die "Unable to create temporary file in $FFTMPDIR."

  3780.     eval $1=$tmp

  3781. }

  3782. 

  3783. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3784. trap 'exit 2' INT

  3785. 

  3786. tmpfile TMPASM .asm

  3787. tmpfile TMPC   .c

  3788. tmpfile TMPCPP .cpp

  3789. tmpfile TMPE   $EXESUF

  3790. tmpfile TMPH   .h

  3791. tmpfile TMPM   .m

  3792. tmpfile TMPO   .o

  3793. tmpfile TMPS   .S

  3794. tmpfile TMPSH  .sh

  3795. tmpfile TMPV   .ver

  3796. 

  3797. unset -f mktemp

  3798. 

  3799. chmod +x $TMPE

  3800. 

  3801. # make sure we can execute files in $TMPDIR

  3802. cat > $TMPSH 2>> $logfile <<EOF

  3803. #! /bin/sh

  3804. EOF

  3805. chmod +x $TMPSH >> $logfile 2>&1

  3806. if ! $TMPSH >> $logfile 2>&1; then

  3807.     cat <<EOF

  3808. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3809. variable to another directory and make sure that it is not mounted noexec.

  3810. EOF

  3811.     die "Sanity test failed."

  3812. fi

  3813. 

  3814. armasm_flags(){

  3815.     for flag; do

  3816.         case $flag in

  3817.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3818.             # be passed to gas-preprocessor

  3819.             -M[TD]*)                                            ;;

  3820.             *)                  echo $flag                      ;;

  3821.         esac

  3822.    done

  3823. }

  3824. 

  3825. ccc_flags(){

  3826.     for flag; do

  3827.         case $flag in

  3828.             -std=c99)           echo -c99                       ;;

  3829.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3830.             -mieee)             echo -ieee                      ;;

  3831.             -O*|-fast)          echo $flag                      ;;

  3832.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3833.             -g)                 echo -g3                        ;;

  3834.             -Wall)              echo -msg_enable level2         ;;

  3835.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3836.             -Wl,*)              echo $flag                      ;;

  3837.             -f*|-W*)                                            ;;

  3838.             *)                  echo $flag                      ;;

  3839.         esac

  3840.    done

  3841. }

  3842. 

  3843. cparser_flags(){

  3844.     for flag; do

  3845.         case $flag in

  3846.             -Wno-switch)             echo -Wno-switch-enum ;;

  3847.             -Wno-format-zero-length) ;;

  3848.             -Wdisabled-optimization) ;;

  3849.             -Wno-pointer-sign)       echo -Wno-other ;;

  3850.             *)                       echo $flag ;;

  3851.         esac

  3852.     done

  3853. }

  3854. 

  3855. msvc_common_flags(){

  3856.     for flag; do

  3857.         case $flag in

  3858.             # In addition to specifying certain flags under the compiler

  3859.             # specific filters, they must be specified here as well or else the

  3860.             # generic catch all at the bottom will print the original flag.

  3861.             -Wall)                ;;

  3862.             -Wextra)              ;;

  3863.             -std=c99)             ;;

  3864.             # Common flags

  3865.             -fomit-frame-pointer) ;;

  3866.             -g)                   echo -Z7 ;;

  3867.             -fno-math-errno)      ;;

  3868.             -fno-common)          ;;

  3869.             -fno-signed-zeros)    ;;

  3870.             -fPIC)                ;;

  3871.             -mthumb)              ;;

  3872.             -march=*)             ;;

  3873.             -lz)                  echo zlib.lib ;;

  3874.             -lx264)               echo libx264.lib ;;

  3875.             -lstdc++)             ;;

  3876.             -l*)                  echo ${flag#-l}.lib ;;

  3877.             -LARGEADDRESSAWARE)   echo $flag ;;

  3878.             -L*)                  echo -libpath:${flag#-L} ;;

  3879.             *)                    echo $flag ;;

  3880.         esac

  3881.     done

  3882. }

  3883. 

  3884. msvc_flags(){

  3885.     msvc_common_flags "$@"

  3886.     for flag; do

  3887.         case $flag in

  3888.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  3889.                                        -wd4554 ;;

  3890.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3891.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3892.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3893.                                        -wd4307 \

  3894.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  3895.         esac

  3896.     done

  3897. }

  3898. 

  3899. icl_flags(){

  3900.     msvc_common_flags "$@"

  3901.     for flag; do

  3902.         case $flag in

  3903.             # Despite what Intel's documentation says -Wall, which is supported

  3904.             # on Windows, does enable remarks so disable them here.

  3905.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3906.             -std=c99)             echo -Qstd=c99 ;;

  3907.             -flto)                echo -ipo ;;

  3908.         esac

  3909.     done

  3910. }

  3911. 

  3912. icc_flags(){

  3913.     for flag; do

  3914.         case $flag in

  3915.             -flto)                echo -ipo ;;

  3916.             *)                    echo $flag ;;

  3917.         esac

  3918.     done

  3919. }

  3920. 

  3921. pgi_flags(){

  3922.     for flag; do

  3923.         case $flag in

  3924.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3925.             -fomit-frame-pointer) echo -Mnoframe ;;

  3926.             -g)                   echo -gopt ;;

  3927.             *)                    echo $flag ;;

  3928.         esac

  3929.     done

  3930. }

  3931. 

  3932. suncc_flags(){

  3933.     for flag; do

  3934.         case $flag in

  3935.             -march=*|-mcpu=*)

  3936.                 case "${flag#*=}" in

  3937.                     native)                   echo -xtarget=native       ;;

  3938.                     v9|niagara)               echo -xarch=sparc          ;;

  3939.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3940.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3941.                     i586|pentium)             echo -xchip=pentium        ;;

  3942.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3943.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3944.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3945.                     pentium4*)          echo -xtarget=pentium4           ;;

  3946.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3947.                     *-sse3)             echo -xarch=sse3                 ;;

  3948.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3949.                     bonnell)                   echo -xarch=ssse3         ;;

  3950.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3951.                     westmere)                  echo -xtarget=westmere    ;;

  3952.                     silvermont)                echo -xarch=sse4_2        ;;

  3953.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3954.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  3955.                                                echo -xarch=avx           ;;

  3956.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3957.                     btver1)                    echo -xarch=amdsse4a      ;;

  3958.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  3959.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3960.                     k8|opteron|athlon64|athlon-fx)

  3961.                                                echo -xarch=sse2a         ;;

  3962.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3963.                 esac

  3964.                 ;;

  3965.             -std=c99)             echo -xc99              ;;

  3966.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3967.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3968.             -W*,*)                echo $flag              ;;

  3969.             -f*-*|-W*|-mimpure-text)                      ;;

  3970.             -shared)              echo -G                 ;;

  3971.             *)                    echo $flag              ;;

  3972.         esac

  3973.     done

  3974. }

  3975. 

  3976. tms470_flags(){

  3977.     for flag; do

  3978.         case $flag in

  3979.             -march=*|-mcpu=*)

  3980.                 case "${flag#*=}" in

  3981.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3982.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3983.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3984.                     armv6*|arm11*)          echo -mv=6   ;;

  3985.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3986.                                             echo -mv=5e  ;;

  3987.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3988.                 esac

  3989.                 ;;

  3990.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3991.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3992.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3993.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3994.             -msoft-float)   echo --float_support=vfplib       ;;

  3995.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3996.             -g)             echo -g -mn                       ;;

  3997.             -pds=*)         echo $flag                        ;;

  3998.             -D*|-I*)        echo $flag                        ;;

  3999.             --gcc|--abi=*)  echo $flag                        ;;

  4000.             -me)            echo $flag                        ;;

  4001.         esac

  4002.     done

  4003. }

  4004. 

  4005. probe_cc(){

  4006.     pfx=$1

  4007.     _cc=$2

  4008.     first=$3

  4009. 

  4010.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4011.     unset _ld_o _ldflags _ld_lib _ld_path

  4012.     unset _depflags _DEPCMD _DEPFLAGS

  4013.     _flags_filter=echo

  4014. 

  4015.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4016.         true # no-op to avoid reading stdin in following checks

  4017.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4018.         _type=llvm_gcc

  4019.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4020.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4021.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4022.         _cflags_speed='-O3'

  4023.         _cflags_size='-Os'

  4024.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4025.         _type=gcc

  4026.         gcc_version=$($_cc --version | head -n1)

  4027.         gcc_basever=$($_cc -dumpversion)

  4028.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4029.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4030.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4031.         case $gcc_basever in

  4032.             2) ;;

  4033.             2.*) ;;

  4034.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4035.         esac

  4036.         if [ "$first" = true ]; then

  4037.             case $gcc_basever in

  4038.                 4.2*)

  4039.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4040.             esac

  4041.         fi

  4042.         _cflags_speed='-O3'

  4043.         _cflags_size='-Os'

  4044.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4045.         _type=icc

  4046.         _ident=$($_cc --version | head -n1)

  4047.         _depflags='-MMD'

  4048.         _cflags_speed='-O3'

  4049.         _cflags_size='-Os'

  4050.         _cflags_noopt='-O1'

  4051.         _flags_filter=icc_flags

  4052.     elif $_cc -v 2>&1 | grep -q xlc; then

  4053.         _type=xlc

  4054.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4055.         _cflags_speed='-O5'

  4056.         _cflags_size='-O5 -qcompact'

  4057.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  4058.         _type=ccc

  4059.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  4060.         _DEPFLAGS='-M'

  4061.         _cflags_speed='-fast'

  4062.         _cflags_size='-O1'

  4063.         _flags_filter=ccc_flags

  4064.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4065.         test -d "$sysroot" || die "No valid sysroot specified."

  4066.         _type=armcc

  4067.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4068.         armcc_conf="$PWD/armcc.conf"

  4069.         $_cc --arm_linux_configure                 \

  4070.              --arm_linux_config_file="$armcc_conf" \

  4071.              --configure_sysroot="$sysroot"        \

  4072.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4073.              die "Error creating armcc configuration file."

  4074.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4075.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4076.         as_default="${cross_prefix}gcc"

  4077.         _depflags='-MMD'

  4078.         _cflags_speed='-O3'

  4079.         _cflags_size='-Os'

  4080.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  4081.         _type=tms470

  4082.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  4083.         _flags='--gcc --abi=eabi -me'

  4084.         _cc_e='-ppl -fe=$@'

  4085.         _cc_o='-fe=$@'

  4086.         _depflags='-ppa -ppd=$(@:.o=.d)'

  4087.         _cflags_speed='-O3 -mf=5'

  4088.         _cflags_size='-O3 -mf=2'

  4089.         _flags_filter=tms470_flags

  4090.     elif $_cc -v 2>&1 | grep -q clang; then

  4091.         _type=clang

  4092.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4093.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4094.         _cflags_speed='-O3'

  4095.         _cflags_size='-Oz'

  4096.     elif $_cc -V 2>&1 | grep -q Sun; then

  4097.         _type=suncc

  4098.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4099.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4100.         _DEPFLAGS='-xM1 -xc99'

  4101.         _ldflags='-std=c99'

  4102.         _cflags_speed='-O5'

  4103.         _cflags_size='-O5 -xspace'

  4104.         _flags_filter=suncc_flags

  4105.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4106.         _type=pathscale

  4107.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4108.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4109.         _cflags_speed='-O2'

  4110.         _cflags_size='-Os'

  4111.         _flags_filter='filter_out -Wdisabled-optimization'

  4112.     elif $_cc -v 2>&1 | grep -q Open64; then

  4113.         _type=open64

  4114.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4115.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4116.         _cflags_speed='-O2'

  4117.         _cflags_size='-Os'

  4118.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4119.     elif $_cc -V 2>&1 | grep -q Portland; then

  4120.         _type=pgi

  4121.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  4122.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4123.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4124.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4125.         _cflags_noopt="-O"

  4126.         _flags_filter=pgi_flags

  4127.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4128.         _type=armasm

  4129.         _ident=$($_cc | head -n1)

  4130.         # 4509: "This form of conditional instruction is deprecated"

  4131.         _flags="-nologo -ignore 4509"

  4132.         _flags_filter=armasm_flags

  4133.     elif $_cc 2>&1 | grep -q Intel; then

  4134.         _type=icl

  4135.         _ident=$($_cc 2>&1 | head -n1)

  4136.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4137.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4138.         # versions (tested) as well.

  4139.         _cflags_speed="-O2"

  4140.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4141.         if $_cc 2>&1 | grep -q Linker; then

  4142.             _ld_o='-out:$@'

  4143.         else

  4144.             _ld_o='-Fe$@'

  4145.         fi

  4146.         _cc_o='-Fo$@'

  4147.         _cc_e='-P'

  4148.         _flags_filter=icl_flags

  4149.         _ld_lib='lib%.a'

  4150.         _ld_path='-libpath:'

  4151.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4152.         _flags='-nologo -Qdiag-error:4044,10157'

  4153.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4154.         # with MSVC which enables it by default.

  4155.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4156.         disable stripping

  4157.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4158.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4159.         # the -? parameter gives the help output which contains an identifyable

  4160.         # string, while it gives an error in other modes.

  4161.         _type=lld-link

  4162.         # The link.exe mode doesn't have a switch for getting the version,

  4163.         # but we can force it back to gnu mode and get the version from there.

  4164.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4165.         _ld_o='-out:$@'

  4166.         _flags_filter=msvc_flags

  4167.         _ld_lib='lib%.a'

  4168.         _ld_path='-libpath:'

  4169.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4170.         _type=msvc

  4171.         _ident=$($_cc 2>&1 | head -n1)

  4172.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4173.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4174.         _cflags_speed="-O2"

  4175.         _cflags_size="-O1"

  4176.         _cflags_noopt="-O1"

  4177.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4178.             _ld_o='-out:$@'

  4179.         else

  4180.             _ld_o='-Fe$@'

  4181.         fi

  4182.         _cc_o='-Fo$@'

  4183.         _cc_e='-P -Fi$@'

  4184.         _flags_filter=msvc_flags

  4185.         _ld_lib='lib%.a'

  4186.         _ld_path='-libpath:'

  4187.         _flags='-nologo'

  4188.         disable stripping

  4189.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4190.         _type=cparser

  4191.         _ident=$($_cc --version | head -n1)

  4192.         _depflags='-MMD'

  4193.         _cflags_speed='-O4'

  4194.         _cflags_size='-O2'

  4195.         _flags_filter=cparser_flags

  4196.     fi

  4197. 

  4198.     eval ${pfx}_type=\$_type

  4199.     eval ${pfx}_ident=\$_ident

  4200. }

  4201. 

  4202. set_ccvars(){

  4203.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4204.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4205.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4206. 

  4207.     if [ -n "$_depflags" ]; then

  4208.         eval ${1}_DEPFLAGS=\$_depflags

  4209.     else

  4210.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4211.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4212.         eval DEP${1}FLAGS=\$_flags

  4213.     fi

  4214. }

  4215. 

  4216. probe_cc cc "$cc" "true"

  4217. cflags_filter=$_flags_filter

  4218. cflags_speed=$_cflags_speed

  4219. cflags_size=$_cflags_size

  4220. cflags_noopt=$_cflags_noopt

  4221. add_cflags $_flags $_cflags

  4222. cc_ldflags=$_ldflags

  4223. set_ccvars CC

  4224. set_ccvars CXX

  4225. 

  4226. probe_cc hostcc "$host_cc"

  4227. host_cflags_filter=$_flags_filter

  4228. host_cflags_speed=$_cflags_speed

  4229. add_host_cflags  $_flags $_cflags

  4230. set_ccvars HOSTCC

  4231. 

  4232. test -n "$cc_type" && enable $cc_type ||

  4233.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4234. 

  4235. : ${as_default:=$cc}

  4236. : ${objcc_default:=$cc}

  4237. : ${dep_cc_default:=$cc}

  4238. : ${ld_default:=$cc}

  4239. : ${host_ld_default:=$host_cc}

  4240. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4241. 

  4242. probe_cc as "$as"

  4243. asflags_filter=$_flags_filter

  4244. add_asflags $_flags $_cflags

  4245. set_ccvars AS

  4246. 

  4247. probe_cc objcc "$objcc"

  4248. objcflags_filter=$_flags_filter

  4249. add_objcflags $_flags $_cflags

  4250. set_ccvars OBJC

  4251. 

  4252. probe_cc ld "$ld"

  4253. ldflags_filter=$_flags_filter

  4254. add_ldflags $_flags $_ldflags

  4255. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4256. LD_O=${_ld_o-$LD_O}

  4257. LD_LIB=${_ld_lib-$LD_LIB}

  4258. LD_PATH=${_ld_path-$LD_PATH}

  4259. 

  4260. probe_cc hostld "$host_ld"

  4261. host_ldflags_filter=$_flags_filter

  4262. add_host_ldflags $_flags $_ldflags

  4263. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4264. 

  4265. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4266.     probe_cc depcc "$dep_cc"

  4267.     CCDEP=${_DEPCMD:-$DEPCMD}

  4268.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4269.     DEPCCFLAGS=$_flags

  4270. fi

  4271. 

  4272. if $ar 2>&1 | grep -q Microsoft; then

  4273.     arflags="-nologo"

  4274.     ar_o='-out:$@'

  4275. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4276.     arflags="rq"

  4277.     ar_o='$@'

  4278. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4279.     arflags='-Xany -r -c'

  4280.     ar_o='$@'

  4281. elif $ar 2>&1 | grep -q "\[D\] "; then

  4282.     arflags="rcD"

  4283.     ar_o='$@'

  4284. else

  4285.     arflags="rc"

  4286.     ar_o='$@'

  4287. fi

  4288. 

  4289. add_cflags $extra_cflags

  4290. add_cxxflags $extra_cxxflags

  4291. add_objcflags $extra_objcflags

  4292. add_asflags $extra_cflags

  4293. 

  4294. if test -n "$sysroot"; then

  4295.     case "$cc_type" in

  4296.         gcc|llvm_gcc|clang)

  4297.             add_cppflags --sysroot="$sysroot"

  4298.             add_ldflags --sysroot="$sysroot"

  4299. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4300.             add_cppflags -isysroot "$sysroot"

  4301.             add_ldflags -isysroot "$sysroot"

  4302.         ;;

  4303.         tms470)

  4304.             add_cppflags -I"$sysinclude"

  4305.             add_ldflags  --sysroot="$sysroot"

  4306.         ;;

  4307.     esac

  4308. fi

  4309. 

  4310. if test "$cpu" = host; then

  4311.     enabled cross_compile &&

  4312.         die "--cpu=host makes no sense when cross-compiling."

  4313. 

  4314.     case "$cc_type" in

  4315.         gcc|llvm_gcc)

  4316.             check_native(){

  4317.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4318.                 sed -n "/cc1.*$1=/{

  4319.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4320.                             p

  4321.                             q

  4322.                         }" $TMPE

  4323.             }

  4324.             cpu=$(check_native -march || check_native -mcpu)

  4325.         ;;

  4326.         clang)

  4327.             check_native(){

  4328.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4329.                 sed -n "/cc1.*-target-cpu /{

  4330.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4331.                             p

  4332.                             q

  4333.                         }" $TMPE

  4334.             }

  4335.             cpu=$(check_native -march)

  4336.         ;;

  4337.     esac

  4338. 

  4339.     test "${cpu:-host}" = host &&

  4340.         die "--cpu=host not supported with compiler $cc"

  4341. fi

  4342. 

  4343. # Deal with common $arch aliases

  4344. case "$arch" in

  4345.     aarch64|arm64)

  4346.         arch="aarch64"

  4347.     ;;

  4348.     arm*|iPad*|iPhone*)

  4349.         arch="arm"

  4350.     ;;

  4351.     mips*|IP*)

  4352.         case "$arch" in

  4353.         *el)

  4354.             add_cppflags -EL

  4355.             add_ldflags -EL

  4356.         ;;

  4357.         *eb)

  4358.             add_cppflags -EB

  4359.             add_ldflags -EB

  4360.         ;;

  4361.         esac

  4362.         arch="mips"

  4363.     ;;

  4364.     parisc*|hppa*)

  4365.         arch="parisc"

  4366.     ;;

  4367.     "Power Macintosh"|ppc*|powerpc*)

  4368.         arch="ppc"

  4369.     ;;

  4370.     s390|s390x)

  4371.         arch="s390"

  4372.     ;;

  4373.     sh4|sh)

  4374.         arch="sh4"

  4375.     ;;

  4376.     sun4*|sparc*)

  4377.         arch="sparc"

  4378.     ;;

  4379.     tilegx|tile-gx)

  4380.         arch="tilegx"

  4381.     ;;

  4382.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4383.         arch="x86"

  4384.     ;;

  4385. esac

  4386. 

  4387. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4388. enable $arch

  4389. 

  4390. # Add processor-specific flags

  4391. if enabled aarch64; then

  4392. 

  4393.     case $cpu in

  4394.         armv*)

  4395.             cpuflags="-march=$cpu"

  4396.         ;;

  4397.         *)

  4398.             cpuflags="-mcpu=$cpu"

  4399.         ;;

  4400.     esac

  4401. 

  4402. elif enabled alpha; then

  4403. 

  4404.     cpuflags="-mcpu=$cpu"

  4405. 

  4406. elif enabled arm; then

  4407. 

  4408.     check_arm_arch() {

  4409.         check_cpp_condition stddef.h \

  4410.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4411.             $cpuflags

  4412.     }

  4413. 

  4414.     probe_arm_arch() {

  4415.         if   check_arm_arch 4;        then echo armv4

  4416.         elif check_arm_arch 4T;       then echo armv4t

  4417.         elif check_arm_arch 5;        then echo armv5

  4418.         elif check_arm_arch 5E;       then echo armv5e

  4419.         elif check_arm_arch 5T;       then echo armv5t

  4420.         elif check_arm_arch 5TE;      then echo armv5te

  4421.         elif check_arm_arch 5TEJ;     then echo armv5te

  4422.         elif check_arm_arch 6;        then echo armv6

  4423.         elif check_arm_arch 6J;       then echo armv6j

  4424.         elif check_arm_arch 6K;       then echo armv6k

  4425.         elif check_arm_arch 6Z;       then echo armv6z

  4426.         elif check_arm_arch 6ZK;      then echo armv6zk

  4427.         elif check_arm_arch 6T2;      then echo armv6t2

  4428.         elif check_arm_arch 7;        then echo armv7

  4429.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4430.         elif check_arm_arch 7S;       then echo armv7-a

  4431.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4432.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4433.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4434.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4435.         fi

  4436.     }

  4437. 

  4438.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4439. 

  4440.     case $cpu in

  4441.         armv*)

  4442.             cpuflags="-march=$cpu"

  4443.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4444.         ;;

  4445.         *)

  4446.             cpuflags="-mcpu=$cpu"

  4447.             case $cpu in

  4448.                 cortex-a*)                               subarch=armv7a  ;;

  4449.                 cortex-r*)                               subarch=armv7r  ;;

  4450.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4451.                 arm11*)                                  subarch=armv6   ;;

  4452.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4453.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4454.                 *)                             subarch=$(probe_arm_arch) ;;

  4455.             esac

  4456.         ;;

  4457.     esac

  4458. 

  4459.     case "$subarch" in

  4460.         armv5t*)    enable fast_clz                ;;

  4461.         armv[6-8]*)

  4462.             enable fast_clz

  4463.             disabled fast_unaligned || enable fast_unaligned

  4464.             ;;

  4465.     esac

  4466. 

  4467. elif enabled avr32; then

  4468. 

  4469.     case $cpu in

  4470.         ap7[02]0[0-2])

  4471.             subarch="avr32_ap"

  4472.             cpuflags="-mpart=$cpu"

  4473.         ;;

  4474.         ap)

  4475.             subarch="avr32_ap"

  4476.             cpuflags="-march=$cpu"

  4477.         ;;

  4478.         uc3[ab]*)

  4479.             subarch="avr32_uc"

  4480.             cpuflags="-mcpu=$cpu"

  4481.         ;;

  4482.         uc)

  4483.             subarch="avr32_uc"

  4484.             cpuflags="-march=$cpu"

  4485.         ;;

  4486.     esac

  4487. 

  4488. elif enabled bfin; then

  4489. 

  4490.     cpuflags="-mcpu=$cpu"

  4491. 

  4492. elif enabled mips; then

  4493. 

  4494.     cpuflags="-march=$cpu"

  4495. 

  4496.     if [ "$cpu" != "generic" ]; then

  4497.         disable mips32r2

  4498.         disable mips32r5

  4499.         disable mips64r2

  4500.         disable mips32r6

  4501.         disable mips64r6

  4502.         disable loongson2

  4503.         disable loongson3

  4504. 

  4505.         case $cpu in

  4506.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4507.                 enable mips32r2

  4508.                 disable msa

  4509.             ;;

  4510.             p5600|i6400|p6600)

  4511.                 disable mipsdsp

  4512.                 disable mipsdspr2

  4513.             ;;

  4514.             loongson*)

  4515.                 enable loongson2

  4516.                 enable loongson3

  4517.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4518.                 enable simd_align_16

  4519.                 enable fast_64bit

  4520.                 enable fast_clz

  4521.                 enable fast_cmov

  4522.                 enable fast_unaligned

  4523.                 disable aligned_stack

  4524.                 disable mipsfpu

  4525.                 disable mipsdsp

  4526.                 disable mipsdspr2

  4527.                 case $cpu in

  4528.                     loongson3*)

  4529.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4530.                     ;;

  4531.                     loongson2e)

  4532.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4533.                     ;;

  4534.                     loongson2f)

  4535.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4536.                     ;;

  4537.                 esac

  4538.             ;;

  4539.             *)

  4540.                 # Unknown CPU. Disable everything.

  4541.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4542.                 disable mipsfpu

  4543.                 disable mipsdsp

  4544.                 disable mipsdspr2

  4545.                 disable msa

  4546.                 disable mmi

  4547.             ;;

  4548.         esac

  4549. 

  4550.         case $cpu in

  4551.             24kc)

  4552.                 disable mipsfpu

  4553.                 disable mipsdsp

  4554.                 disable mipsdspr2

  4555.             ;;

  4556.             24kf*)

  4557.                 disable mipsdsp

  4558.                 disable mipsdspr2

  4559.             ;;

  4560.             24kec|34kc|1004kc)

  4561.                 disable mipsfpu

  4562.                 disable mipsdspr2

  4563.             ;;

  4564.             24kef*|34kf*|1004kf*)

  4565.                 disable mipsdspr2

  4566.             ;;

  4567.             74kc)

  4568.                 disable mipsfpu

  4569.             ;;

  4570.             p5600)

  4571.                 enable mips32r5

  4572.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4573.             ;;

  4574.             i6400)

  4575.                 enable mips64r6

  4576.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4577.             ;;

  4578.             p6600)

  4579.                 enable mips64r6

  4580.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4581.             ;;

  4582.         esac

  4583.     else

  4584.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4585.         warn 'generic cpu selected'

  4586.     fi

  4587. 

  4588. elif enabled ppc; then

  4589. 

  4590.     disable ldbrx

  4591. 

  4592.     case $(tolower $cpu) in

  4593.         601|ppc601|powerpc601)

  4594.             cpuflags="-mcpu=601"

  4595.             disable altivec

  4596.         ;;

  4597.         603*|ppc603*|powerpc603*)

  4598.             cpuflags="-mcpu=603"

  4599.             disable altivec

  4600.         ;;

  4601.         604*|ppc604*|powerpc604*)

  4602.             cpuflags="-mcpu=604"

  4603.             disable altivec

  4604.         ;;

  4605.         g3|75*|ppc75*|powerpc75*)

  4606.             cpuflags="-mcpu=750"

  4607.             disable altivec

  4608.         ;;

  4609.         g4|745*|ppc745*|powerpc745*)

  4610.             cpuflags="-mcpu=7450"

  4611.             disable vsx

  4612.         ;;

  4613.         74*|ppc74*|powerpc74*)

  4614.             cpuflags="-mcpu=7400"

  4615.             disable vsx

  4616.         ;;

  4617.         g5|970|ppc970|powerpc970)

  4618.             cpuflags="-mcpu=970"

  4619.             disable vsx

  4620.         ;;

  4621.         power[3-6]*)

  4622.             cpuflags="-mcpu=$cpu"

  4623.             disable vsx

  4624.         ;;

  4625.         power[7-8]*)

  4626.             cpuflags="-mcpu=$cpu"

  4627.         ;;

  4628.         cell)

  4629.             cpuflags="-mcpu=cell"

  4630.             enable ldbrx

  4631.             disable vsx

  4632.         ;;

  4633.         e500mc)

  4634.             cpuflags="-mcpu=e500mc"

  4635.             disable altivec

  4636.         ;;

  4637.         e500v2)

  4638.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4639.             disable altivec

  4640.             disable dcbzl

  4641.         ;;

  4642.         e500)

  4643.             cpuflags="-mcpu=8540 -mhard-float"

  4644.             disable altivec

  4645.             disable dcbzl

  4646.         ;;

  4647.     esac

  4648. 

  4649. elif enabled sparc; then

  4650. 

  4651.     case $cpu in

  4652.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4653.             cpuflags="-mcpu=$cpu"

  4654.         ;;

  4655.         ultrasparc*|niagara[234])

  4656.             cpuflags="-mcpu=$cpu"

  4657.         ;;

  4658.     esac

  4659. 

  4660. elif enabled x86; then

  4661. 

  4662.     case $cpu in

  4663.         i[345]86|pentium)

  4664.             cpuflags="-march=$cpu"

  4665.             disable i686

  4666.             disable mmx

  4667.         ;;

  4668.         # targets that do NOT support nopl and conditional mov (cmov)

  4669.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4670.             cpuflags="-march=$cpu"

  4671.             disable i686

  4672.         ;;

  4673.         # targets that do support nopl and conditional mov (cmov)

  4674.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4675.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4676.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4677.             cpuflags="-march=$cpu"

  4678.             enable i686

  4679.             enable fast_cmov

  4680.         ;;

  4681.         # targets that do support conditional mov but on which it's slow

  4682.         pentium4|pentium4m|prescott|nocona)

  4683.             cpuflags="-march=$cpu"

  4684.             enable i686

  4685.             disable fast_cmov

  4686.         ;;

  4687.     esac

  4688. 

  4689. fi

  4690. 

  4691. if [ "$cpu" != generic ]; then

  4692.     add_cflags  $cpuflags

  4693.     add_asflags $cpuflags

  4694.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4695. fi

  4696. 

  4697. # compiler sanity check

  4698. check_exec <<EOF

  4699. int main(void){ return 0; }

  4700. EOF

  4701. if test "$?" != 0; then

  4702.     echo "$cc is unable to create an executable file."

  4703.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4704.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4705.         echo "Only do this if you know what cross compiling means."

  4706.     fi

  4707.     die "C compiler test failed."

  4708. fi

  4709. 

  4710. add_cppflags -D_ISOC99_SOURCE

  4711. add_cxxflags -D__STDC_CONSTANT_MACROS

  4712. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4713. 

  4714. # some compilers silently accept -std=c11, so we also need to check that the

  4715. # version macro is defined properly

  4716. if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then

  4717.     add_cflags -std=c11

  4718. else

  4719.     check_cflags -std=c99

  4720. fi

  4721. 

  4722. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4723. #include <stdlib.h>

  4724. EOF

  4725. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4726. #include <stdlib.h>

  4727. EOF

  4728. 

  4729. add_host_cppflags -D_ISOC99_SOURCE

  4730. check_host_cflags -std=c99

  4731. check_host_cflags -Wall

  4732. check_host_cflags $host_cflags_speed

  4733. 

  4734. check_64bit(){

  4735.     arch32=$1

  4736.     arch64=$2

  4737.     expr=$3

  4738.     check_code cc "" "int test[2*($expr) - 1]" &&

  4739.         subarch=$arch64 || subarch=$arch32

  4740. }

  4741. 

  4742. case "$arch" in

  4743.     aarch64|alpha|ia64)

  4744.         spic=$shared

  4745.     ;;

  4746.     mips)

  4747.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4748.         spic=$shared

  4749.     ;;

  4750.     parisc)

  4751.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4752.         spic=$shared

  4753.     ;;

  4754.     ppc)

  4755.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4756.         spic=$shared

  4757.     ;;

  4758.     s390)

  4759.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4760.         spic=$shared

  4761.     ;;

  4762.     sparc)

  4763.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4764.         spic=$shared

  4765.     ;;

  4766.     x86)

  4767.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4768.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4769.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4770.             subarch=x86_64

  4771.         if test "$subarch" = "x86_64"; then

  4772.             spic=$shared

  4773.         fi

  4774.     ;;

  4775.     ppc)

  4776.         check_cc <<EOF && subarch="ppc64"

  4777.         int test[(int)sizeof(char*) - 7];

  4778. EOF

  4779.     ;;

  4780. esac

  4781. 

  4782. enable $subarch

  4783. enabled spic && enable_weak pic

  4784. 

  4785. # OS specific

  4786. case $target_os in

  4787.     aix)

  4788.         SHFLAGS=-shared

  4789.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4790.         enabled shared && add_ldflags -Wl,-brtl

  4791.         ;;

  4792.     android)

  4793.         disable symver

  4794.         enable section_data_rel_ro

  4795.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4796.         SLIB_INSTALL_LINKS=

  4797.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4798.         ;;

  4799.     haiku)

  4800.         prefix_default="/boot/common"

  4801.         network_extralibs="-lnetwork"

  4802.         host_extralibs=

  4803.         ;;

  4804.     sunos)

  4805.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4806.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4807.         network_extralibs="-lsocket -lnsl"

  4808.         add_cppflags -D__EXTENSIONS__

  4809.         # When using suncc to build, the Solaris linker will mark

  4810.         # an executable with each instruction set encountered by

  4811.         # the Solaris assembler.  As our libraries contain their own

  4812.         # guards for processor-specific code, instead suppress

  4813.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4814.         enabled_all suncc x86 &&

  4815.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4816.             add_ldflags -Wl,-M,mapfile

  4817.         nm_default='nm -P -g'

  4818.         version_script='-M'

  4819.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4820.         ;;

  4821.     netbsd)

  4822.         disable symver

  4823.         oss_indev_extralibs="-lossaudio"

  4824.         oss_outdev_extralibs="-lossaudio"

  4825.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4826.         ;;

  4827.     openbsd|bitrig)

  4828.         disable symver

  4829.         SHFLAGS='-shared'

  4830.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4831.         SLIB_INSTALL_LINKS=

  4832.         oss_indev_extralibs="-lossaudio"

  4833.         oss_outdev_extralibs="-lossaudio"

  4834.         ;;

  4835.     dragonfly)

  4836.         disable symver

  4837.         ;;

  4838.     freebsd)

  4839.         ;;

  4840.     bsd/os)

  4841.         add_extralibs -lpoll -lgnugetopt

  4842.         strip="strip -d"

  4843.         ;;

  4844.     darwin)

  4845.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4846.         install_name_dir_default='$(SHLIBDIR)'

  4847.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4848.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4849.         strip="${strip} -x"

  4850.         add_ldflags -Wl,-dynamic,-search_paths_first

  4851.         SLIBSUF=".dylib"

  4852.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4853.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4854.         objformat="macho"

  4855.         enabled x86_64 && objformat="macho64"

  4856.         enabled_any pic shared x86_64 ||

  4857.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4858.         check_header dispatch/dispatch.h &&

  4859.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4860.         version_script='-exported_symbols_list'

  4861.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4862.         ;;

  4863.     msys*)

  4864.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4865.         ;;

  4866.     mingw32*|mingw64*)

  4867.         if test $target_os = "mingw32ce"; then

  4868.             disable network

  4869.         else

  4870.             target_os=mingw32

  4871.         fi

  4872.         LIBTARGET=i386

  4873.         if enabled x86_64; then

  4874.             LIBTARGET="i386:x86-64"

  4875.         elif enabled arm; then

  4876.             LIBTARGET=arm-wince

  4877.         fi

  4878.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4879.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4880.         shlibdir_default="$bindir_default"

  4881.         SLIBPREF=""

  4882.         SLIBSUF=".dll"

  4883.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4884.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4885.         dlltool="${cross_prefix}dlltool"

  4886.         if check_cmd lib.exe -list; then

  4887.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4888.             if enabled x86_64; then

  4889.                 LIBTARGET=x64

  4890.             fi

  4891.         elif check_cmd $dlltool --version; then

  4892.             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)'

  4893.         fi

  4894.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4895.         SLIB_INSTALL_LINKS=

  4896.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4897.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4898.         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'

  4899.         objformat="win32"

  4900.         ranlib=:

  4901.         enable dos_paths

  4902.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4903.         # Lets work around some stupidity in binutils.

  4904.         # ld will strip relocations from executables even though we need them

  4905.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4906.         # however ld then forgets what the entry point should be (oops) so we

  4907.         # have to manually (re)set it.

  4908.         if enabled x86_32; then

  4909.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4910.         elif enabled x86_64; then

  4911.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4912.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4913.             # Set image base >4GB for extra entropy with HEASLR

  4914.             add_ldexeflags -Wl,--image-base,0x140000000

  4915.             append SHFLAGS -Wl,--image-base,0x180000000

  4916.         fi

  4917.         ;;

  4918.     win32|win64)

  4919.         disable symver

  4920.         if enabled shared; then

  4921.             # Link to the import library instead of the normal static library

  4922.             # for shared libs.

  4923.             LD_LIB='%.lib'

  4924.             # Cannot build both shared and static libs with MSVC or icl.

  4925.             disable static

  4926.         fi

  4927.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4928.         shlibdir_default="$bindir_default"

  4929.         SLIBPREF=""

  4930.         SLIBSUF=".dll"

  4931.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4932.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4933.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4934.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4935.         SLIB_INSTALL_LINKS=

  4936.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4937.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4938.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4939.         objformat="win32"

  4940.         ranlib=:

  4941.         enable dos_paths

  4942.         ;;

  4943.     cygwin*)

  4944.         target_os=cygwin

  4945.         shlibdir_default="$bindir_default"

  4946.         SLIBPREF="cyg"

  4947.         SLIBSUF=".dll"

  4948.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4949.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4950.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4951.         SLIB_INSTALL_LINKS=

  4952.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4953.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4954.         objformat="win32"

  4955.         enable dos_paths

  4956.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4957.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4958.         ;;

  4959.     *-dos|freedos|opendos)

  4960.         network_extralibs="-lsocket"

  4961.         objformat="coff"

  4962.         enable dos_paths

  4963.         add_cppflags -U__STRICT_ANSI__

  4964.         ;;

  4965.     linux)

  4966.         enable dv1394

  4967.         enable section_data_rel_ro

  4968.         ;;

  4969.     irix*)

  4970.         target_os=irix

  4971.         ranlib="echo ignoring ranlib"

  4972.         ;;

  4973.     os/2*)

  4974.         strip="lxlite -CS"

  4975.         objformat="aout"

  4976.         add_cppflags -D_GNU_SOURCE

  4977.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  4978.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4979.         LIBSUF="_s.a"

  4980.         SLIBPREF=""

  4981.         SLIBSUF=".dll"

  4982.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4983.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4984.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  4985.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  4986.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  4987.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  4988.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  4989.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  4990.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  4991.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4992.         SLIB_INSTALL_LINKS=

  4993.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  4994.         enable dos_paths

  4995.         enable_weak os2threads

  4996.         ;;

  4997.     gnu/kfreebsd)

  4998.         add_cppflags -D_BSD_SOURCE

  4999.         ;;

  5000.     gnu)

  5001.         ;;

  5002.     qnx)

  5003.         add_cppflags -D_QNX_SOURCE

  5004.         network_extralibs="-lsocket"

  5005.         ;;

  5006.     symbian)

  5007.         SLIBSUF=".dll"

  5008.         enable dos_paths

  5009.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5010.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5011.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5012.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5013.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5014.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5015.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5016.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5017.         ;;

  5018.     osf1)

  5019.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  5020.         ;;

  5021.     minix)

  5022.         ;;

  5023.     none)

  5024.         ;;

  5025.     *)

  5026.         die "Unknown OS '$target_os'."

  5027.         ;;

  5028. esac

  5029. 

  5030. # test if creating links works

  5031. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5032. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5033. mkdir "$link_dest"

  5034. $ln_s "$link_dest" "$link_name"

  5035. touch "$link_dest/test_file"

  5036. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5037.     # create link to source path

  5038.     [ -e src ] && rm src

  5039.     $ln_s "$source_path" src

  5040.     source_link=src

  5041. else

  5042.     # creating directory links doesn't work

  5043.     # fall back to using the full source path

  5044.     source_link="$source_path"

  5045. fi

  5046. # cleanup

  5047. rm -r "$link_dest"

  5048. rm -r "$link_name"

  5049. 

  5050. # determine libc flavour

  5051. 

  5052. probe_libc(){

  5053.     pfx=$1

  5054.     pfx_no_=${pfx%_}

  5055.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5056.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5057.         eval ${pfx}libc_type=uclibc

  5058.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5059.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5060.         eval ${pfx}libc_type=glibc

  5061.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5062.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5063.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5064.         eval ${pfx}libc_type=newlib

  5065.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5066.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5067.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5068.         eval ${pfx}libc_type=mingw64

  5069.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5070.             add_compat msvcrt/snprintf.o

  5071.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5072.         fi

  5073.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5074.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5075.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5076.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5077.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5078.         eval ${pfx}libc_type=mingw32

  5079.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5080.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5081.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5082.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5083.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  5084.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5085.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5086.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5087.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5088.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5089.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5090.         eval ${pfx}libc_type=msvcrt

  5091.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5092.             if [ "$pfx" = host_ ]; then

  5093.                 add_host_cppflags -Dsnprintf=_snprintf

  5094.             else

  5095.                 add_compat strtod.o strtod=avpriv_strtod

  5096.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5097.                                              _snprintf=avpriv_snprintf  \

  5098.                                              vsnprintf=avpriv_vsnprintf

  5099.             fi

  5100.         fi

  5101.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5102.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5103.         # 0x601 by default unless something else is set by the user.

  5104.         # This can easily lead to us detecting functions only present

  5105.         # in such new versions and producing binaries requiring windows 7.0.

  5106.         # Therefore explicitly set the default to XP unless the user has

  5107.         # set something else on the command line.

  5108.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5109.         # family. For these cases, configure is free to use any functions

  5110.         # found in the SDK headers by default. (Alternatively, we could force

  5111.         # _WIN32_WINNT to 0x0602 in that case.)

  5112.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5113.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5114. #ifdef WINAPI_FAMILY

  5115. #include <winapifamily.h>

  5116. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5117. #error not desktop

  5118. #endif

  5119. #endif

  5120. EOF

  5121.         if [ "$pfx" = "" ]; then

  5122.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5123.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5124.         fi

  5125.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5126.         eval ${pfx}libc_type=klibc

  5127.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5128.         eval ${pfx}libc_type=bionic

  5129.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5130.         eval ${pfx}libc_type=solaris

  5131.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5132.     fi

  5133.     check_${pfx}cc <<EOF

  5134. #include <time.h>

  5135. void *v = localtime_r;

  5136. EOF

  5137. 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

  5138. #include <time.h>

  5139. void *v = localtime_r;

  5140. EOF

  5141. 

  5142. }

  5143. 

  5144. probe_libc

  5145. test -n "$libc_type" && enable libc_$libc_type

  5146. probe_libc host_

  5147. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5148. 

  5149. case $libc_type in

  5150.     bionic)

  5151.         add_compat strtod.o strtod=avpriv_strtod

  5152.         ;;

  5153. esac

  5154. 

  5155. # hacks for compiler/libc/os combinations

  5156. 

  5157. if enabled_all tms470 libc_glibc; then

  5158.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5159.     add_cppflags -D__USER_LABEL_PREFIX__=

  5160.     add_cppflags -D__builtin_memset=memset

  5161.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5162.     add_cflags   -pds=48    # incompatible redefinition of macro

  5163. fi

  5164. 

  5165. if enabled_all ccc libc_glibc; then

  5166.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  5167. fi

  5168. 

  5169. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5170.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5171. 

  5172. esc(){

  5173.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5174. }

  5175. 

  5176. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  5177. 

  5178. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5179. 

  5180. set_default libdir

  5181. : ${shlibdir_default:="$libdir"}

  5182. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5183. 

  5184. set_default $PATHS_LIST

  5185. set_default nm

  5186. 

  5187. # we need to build at least one lib type

  5188. if ! enabled_any static shared; then

  5189.     cat <<EOF

  5190. At least one library type must be built.

  5191. Specify --enable-static to build the static libraries or --enable-shared to

  5192. build the shared libraries as well. To only build the shared libraries specify

  5193. --disable-static in addition to --enable-shared.

  5194. EOF

  5195.     exit 1

  5196. fi

  5197. 

  5198. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5199. 

  5200. enable_weak_pic() {

  5201.     disabled pic && return

  5202.     enable pic

  5203.     add_cppflags -DPIC

  5204.     case "$target_os" in

  5205.     mingw*|cygwin*)

  5206.         ;;

  5207.     *)

  5208.         add_cflags -fPIC

  5209.         ;;

  5210.     esac

  5211.     add_asflags  -fPIC

  5212. }

  5213. 

  5214. enabled pic && enable_weak_pic

  5215. 

  5216. check_cc <<EOF || die "Symbol mangling check failed."

  5217. int ff_extern;

  5218. EOF

  5219. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5220. extern_prefix=${sym%%ff_extern*}

  5221. 

  5222. check_cc <<EOF && enable_weak inline_asm

  5223. void foo(void) { __asm__ volatile ("" ::); }

  5224. EOF

  5225. 

  5226. _restrict=

  5227. for restrict_keyword in restrict __restrict__ __restrict; do

  5228.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5229. void foo(char * $restrict_keyword p);

  5230. EOF

  5231. done

  5232. 

  5233. check_cc <<EOF && enable pragma_deprecated

  5234. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5235. EOF

  5236. 

  5237. check_cc <<EOF && enable attribute_packed

  5238. struct { int x; } __attribute__((packed)) x;

  5239. EOF

  5240. 

  5241. check_cc <<EOF && enable attribute_may_alias

  5242. union { int x; } __attribute__((may_alias)) x;

  5243. EOF

  5244. 

  5245. check_cc <<EOF || die "endian test failed"

  5246. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5247. EOF

  5248. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5249. 

  5250. if ! enabled ppc64 || enabled bigendian; then

  5251.     disable vsx

  5252. fi

  5253. 

  5254. check_gas() {

  5255.     log "check_gas using '$as' as AS"

  5256.     # :vararg is used on aarch64, arm and ppc altivec

  5257.     check_as <<EOF || return 1

  5258. .macro m n, y:vararg=0

  5259. \n: .int \y

  5260. .endm

  5261. m x

  5262. EOF

  5263.     # .altmacro is only used in arm asm

  5264.     ! enabled arm || check_as <<EOF || return 1

  5265. .altmacro

  5266. EOF

  5267.     enable gnu_as

  5268.     return 0

  5269. }

  5270. 

  5271. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5272.     nogas=:

  5273.     enabled_any arm aarch64 && nogas=die

  5274.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5275.     as_noop=-v

  5276. 

  5277.     case $as_type in

  5278.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5279.         gcc)  gaspp_as_type=gas ;;

  5280.         *)    gaspp_as_type=$as_type ;;

  5281.     esac

  5282. 

  5283.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5284. 

  5285.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5286.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5287.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5288. 

  5289.     if ! check_gas ; then

  5290.         as=${gas:=$as}

  5291.         check_gas || \

  5292.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5293.     fi

  5294. 

  5295.     check_as <<EOF && enable as_func

  5296. .func test

  5297. .endfunc

  5298. EOF

  5299. fi

  5300. 

  5301. check_inline_asm inline_asm_labels '"1:\n"'

  5302. 

  5303. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5304. 

  5305. if enabled aarch64; then

  5306.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5307.     # internal assembler in clang 3.3 does not support this instruction

  5308.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5309.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5310. 

  5311.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5312. 

  5313. elif enabled alpha; then

  5314. 

  5315.     check_cflags -mieee

  5316. 

  5317. elif enabled arm; then

  5318. 

  5319.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5320. 

  5321.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5322. float func(float a, float b){ return a+b; }

  5323. EOF

  5324. 

  5325.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5326. 

  5327.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5328.         enable vfp_args

  5329.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5330.         enable vfp_args

  5331.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5332.         case "${cross_prefix:-$cc}" in

  5333.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5334.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5335. __asm__ (".eabi_attribute 28, 1");

  5336. int main(void) { return 0; }

  5337. EOF

  5338.         esac

  5339.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5340.     fi

  5341. 

  5342.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5343.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5344.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5345.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5346.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5347.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5348.     enabled setend  && check_insn setend  'setend be'

  5349. 

  5350.     [ $target_os = linux ] || [ $target_os = android ] ||

  5351.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5352.             $ARCH_EXT_LIST_ARM

  5353. 

  5354.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5355. 

  5356.     check_as <<EOF && enable as_dn_directive

  5357. ra .dn d0.i16

  5358. .unreq ra

  5359. EOF

  5360.     check_as <<EOF && enable as_fpu_directive

  5361. .fpu neon

  5362. EOF

  5363. 

  5364.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5365.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  5366. .object_arch armv4

  5367. EOF

  5368. 

  5369.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5370. 

  5371. elif enabled mips; then

  5372. 

  5373.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5374.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5375.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5376. 

  5377.     # Enable minimum ISA based on selected options

  5378.     if enabled mips64; then

  5379.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5380.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5381.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5382.     else

  5383.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5384.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5385.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5386.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5387.     fi

  5388. 

  5389.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5390.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5391.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5392.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5393.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5394. 

  5395.     if enabled bigendian && enabled msa; then

  5396.         disable msa

  5397.     fi

  5398. 

  5399. elif enabled parisc; then

  5400. 

  5401.     if enabled gcc; then

  5402.         case $($cc -dumpversion) in

  5403.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5404.         esac

  5405.     fi

  5406. 

  5407. elif enabled ppc; then

  5408. 

  5409.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5410. 

  5411.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5412.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5413.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5414.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5415. 

  5416.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5417.     if enabled altivec; then

  5418.         check_cflags -maltivec -mabi=altivec &&

  5419.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5420.         check_cflags -faltivec

  5421. 

  5422.         # check if our compiler supports Motorola AltiVec C API

  5423.         check_cc <<EOF || disable altivec

  5424. $inc_altivec_h

  5425. int main(void) {

  5426.     vector signed int v1 = (vector signed int) { 0 };

  5427.     vector signed int v2 = (vector signed int) { 1 };

  5428.     v1 = vec_add(v1, v2);

  5429.     return 0;

  5430. }

  5431. EOF

  5432. 

  5433.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5434.     fi

  5435. 

  5436.     if enabled vsx; then

  5437.         check_cflags -mvsx &&

  5438.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5439.     fi

  5440. 

  5441.     if enabled power8; then

  5442.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5443.     fi

  5444. 

  5445. elif enabled x86; then

  5446. 

  5447.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5448.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5449. 

  5450.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5451. 

  5452.     # check whether EBP is available on x86

  5453.     # As 'i' is stored on the stack, this program will crash

  5454.     # if the base pointer is used to access it because the

  5455.     # base pointer is cleared in the inline assembly code.

  5456.     check_exec_crash <<EOF && enable ebp_available

  5457. volatile int i=0;

  5458. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5459. return i;

  5460. EOF

  5461. 

  5462.     # check whether EBX is available on x86

  5463.     check_inline_asm ebx_available '""::"b"(0)' &&

  5464.         check_inline_asm ebx_available '"":::"%ebx"'

  5465. 

  5466.     # check whether xmm clobbers are supported

  5467.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5468. 

  5469.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5470.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5471. 

  5472.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5473.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5474.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5475. 

  5476.     if ! disabled_any asm mmx yasm; then

  5477.         if check_cmd $yasmexe --version; then

  5478.             enabled x86_64 && yasm_extra="-m amd64"

  5479.             yasm_debug="-g dwarf2"

  5480.         elif check_cmd nasm -v; then

  5481.             yasmexe=nasm

  5482.             yasm_debug="-g -F dwarf"

  5483.             if enabled x86_64; then

  5484.                 case "$objformat" in

  5485.                     elf)   objformat=elf64 ;;

  5486.                     win32) objformat=win64 ;;

  5487.                 esac

  5488.             fi

  5489.         fi

  5490. 

  5491.         YASMFLAGS="-f $objformat $yasm_extra"

  5492.         enabled pic               && append YASMFLAGS "-DPIC"

  5493.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5494.         case "$objformat" in

  5495.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5496.         esac

  5497. 

  5498.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5499.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5500.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5501.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5502.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5503.         check_yasm "CPU amdnop" || disable cpunop

  5504.     fi

  5505. 

  5506.     case "$cpu" in

  5507.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5508.             disable fast_clz

  5509.         ;;

  5510.     esac

  5511. 

  5512. fi

  5513. 

  5514. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5515. 

  5516. check_ldflags -Wl,--as-needed

  5517. check_ldflags -Wl,-z,noexecstack

  5518. 

  5519. if check_func dlopen && check_func dlsym; then

  5520.     ldl=

  5521. elif check_func dlopen -ldl && check_func dlsym -ldl; then

  5522.     ldl=-ldl

  5523. fi

  5524. 

  5525. avisynth_demuxer_extralibs='$ldl'

  5526. cuda_extralibs='$ldl'

  5527. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5528. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5529. frei0r_filter_extralibs='$ldl'

  5530. frei0r_src_filter_extralibs='$ldl'

  5531. ladspa_filter_extralibs='$ldl'

  5532. nvenc_extralibs='$ldl'

  5533. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5534. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5535. 

  5536. if ! disabled network; then

  5537.     check_func getaddrinfo $network_extralibs

  5538.     check_func inet_aton $network_extralibs

  5539. 

  5540.     check_type netdb.h "struct addrinfo"

  5541.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5542.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5543.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5544.     check_type poll.h "struct pollfd"

  5545.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5546.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5547.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5548.     check_type netinet/in.h "struct sockaddr_in6"

  5549.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5550.     check_type "sys/types.h sys/socket.h" socklen_t

  5551. 

  5552.     # Prefer arpa/inet.h over winsock2

  5553.     if check_header arpa/inet.h ; then

  5554.         check_func closesocket

  5555.     elif check_header winsock2.h ; then

  5556.         check_func_headers winsock2.h closesocket -lws2 &&

  5557.             network_extralibs="-lws2" ||

  5558.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5559.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5560.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5561. 

  5562.         check_type ws2tcpip.h socklen_t

  5563.         check_type ws2tcpip.h "struct addrinfo"

  5564.         check_type ws2tcpip.h "struct group_source_req"

  5565.         check_type ws2tcpip.h "struct ip_mreq_source"

  5566.         check_type ws2tcpip.h "struct ipv6_mreq"

  5567.         check_type winsock2.h "struct pollfd"

  5568.         check_struct winsock2.h "struct sockaddr" sa_len

  5569.         check_type ws2tcpip.h "struct sockaddr_in6"

  5570.         check_type ws2tcpip.h "struct sockaddr_storage"

  5571.     else

  5572.         disable network

  5573.     fi

  5574. fi

  5575. 

  5576. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5577. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5578. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5579. check_builtin sarestart signal.h "SA_RESTART"

  5580. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5581. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5582. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5583. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5584. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5585. 

  5586. case "$custom_allocator" in

  5587.     jemalloc)

  5588.         # jemalloc by default does not use a prefix

  5589.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5590.     ;;

  5591.     tcmalloc)

  5592.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5593.         malloc_prefix=tc_

  5594.     ;;

  5595. esac

  5596. 

  5597. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5598. check_func  ${malloc_prefix}memalign            && enable memalign

  5599. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5600. 

  5601. check_func  access

  5602. check_func_headers stdlib.h arc4random

  5603. check_func_headers time.h clock_gettime ||

  5604.     { check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }

  5605. check_func  fcntl

  5606. check_func  fork

  5607. check_func  gethrtime

  5608. check_func  getopt

  5609. check_func  getrusage

  5610. check_func  gettimeofday

  5611. check_func  isatty

  5612. check_func  mach_absolute_time

  5613. check_func  mkstemp

  5614. check_func  mmap

  5615. check_func  mprotect

  5616. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5617. check_func_headers time.h nanosleep ||

  5618.     { check_lib nanosleep time.h nanosleep -lrt && LIBRT="-lrt"; }

  5619. check_func  sched_getaffinity

  5620. check_func  setrlimit

  5621. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5622. check_func  strerror_r

  5623. check_func  sysconf

  5624. check_func  sysctl

  5625. check_func  usleep

  5626. 

  5627. check_func_headers conio.h kbhit

  5628. check_func_headers io.h setmode

  5629. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5630. check_func_headers stdlib.h getenv

  5631. check_func_headers sys/stat.h lstat

  5632. 

  5633. check_func_headers windows.h GetProcessAffinityMask

  5634. check_func_headers windows.h GetProcessTimes

  5635. check_func_headers windows.h GetSystemTimeAsFileTime

  5636. check_func_headers windows.h LoadLibrary

  5637. check_func_headers windows.h MapViewOfFile

  5638. check_func_headers windows.h PeekNamedPipe

  5639. check_func_headers windows.h SetConsoleTextAttribute

  5640. check_func_headers windows.h SetConsoleCtrlHandler

  5641. check_func_headers windows.h Sleep

  5642. check_func_headers windows.h VirtualAlloc

  5643. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5644. check_func_headers glob.h glob

  5645. enabled xlib &&

  5646.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5647. 

  5648. check_header AudioToolbox/AudioToolbox.h

  5649. check_header d3d11.h

  5650. check_header direct.h

  5651. check_header dirent.h

  5652. check_header dlfcn.h

  5653. check_header dxva.h

  5654. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5655. check_header io.h

  5656. check_header libcrystalhd/libcrystalhd_if.h

  5657. check_header mach/mach_time.h

  5658. check_header malloc.h

  5659. check_header net/udplite.h

  5660. check_header poll.h

  5661. check_header sys/mman.h

  5662. check_header sys/param.h

  5663. check_header sys/resource.h

  5664. check_header sys/select.h

  5665. check_header sys/time.h

  5666. check_header sys/un.h

  5667. check_header termios.h

  5668. check_header unistd.h

  5669. check_header valgrind/valgrind.h

  5670. check_header VideoDecodeAcceleration/VDADecoder.h

  5671. check_header VideoToolbox/VideoToolbox.h

  5672. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5673. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5674. check_header windows.h

  5675. check_header X11/extensions/XvMClib.h

  5676. check_header asm/types.h

  5677. 

  5678. # it seems there are versions of clang in some distros that try to use the

  5679. # gcc headers, which explodes for stdatomic

  5680. # so we also check that atomics actually work here

  5681. check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5682. 

  5683. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5684. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5685. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5686. 

  5687. check_lib coreservices "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5688. 

  5689. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5690. 

  5691. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5692. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5693. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5694. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5695. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5696. 

  5697. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5698. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5699. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5700. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5701. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5702. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5703. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5704. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5705. 

  5706. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5707. 

  5708. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5709. 

  5710. if ! disabled w32threads && ! enabled pthreads; then

  5711.     check_func_headers "windows.h process.h" _beginthreadex &&

  5712.         enable w32threads || disable w32threads

  5713.     if ! enabled w32threads && enabled winrt; then

  5714.         check_func_headers "windows.h" CreateThread &&

  5715.             enable w32threads || disable w32threads

  5716.     fi

  5717. fi

  5718. 

  5719. # check for some common methods of building with pthread support

  5720. # do this before the optional library checks as some of them require pthreads

  5721. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5722.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5723.        check_lib pthreads pthread.h pthread_create -pthread; then

  5724.         add_cflags -pthread

  5725.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5726.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5727.         add_cflags -pthreads

  5728.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5729.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5730.         add_cflags -ldl -pthread

  5731.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5732.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5733.         :

  5734.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5735.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5736.         :

  5737.     elif check_func pthread_join && check_func pthread_create; then

  5738.         enable pthreads

  5739.     fi

  5740.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5741. fi

  5742. 

  5743. 

  5744. if enabled pthreads; then

  5745.   check_func pthread_cancel

  5746. fi

  5747. 

  5748. enabled pthreads &&

  5749.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

  5750. 

  5751. disabled  zlib || check_lib zlib   zlib.h      zlibVersion    -lz

  5752. disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5753. disabled  lzma || check_lib lzma   lzma.h lzma_version_number -llzma

  5754. 

  5755. check_lib libm math.h sin -lm && LIBM="-lm"

  5756. disabled crystalhd || check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  5757. 

  5758. atan2f_args=2

  5759. copysign_args=2

  5760. hypot_args=2

  5761. ldexpf_args=2

  5762. powf_args=2

  5763. 

  5764. for func in $MATH_FUNCS; do

  5765.     eval check_mathfunc $func \${${func}_args:-1} $LIBM

  5766. done

  5767. 

  5768. for func in $COMPLEX_FUNCS; do

  5769.     eval check_complexfunc $func \${${func}_args:-1}

  5770. done

  5771. 

  5772. # these are off by default, so fail if requested and not available

  5773. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5774. enabled avfoundation_indev && { check_lib avfoundation_indev CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5775.                                 check_lib avfoundation_indev ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5776. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5777. enabled cuvid             && { enabled cuda ||

  5778.                                die "ERROR: CUVID requires CUDA"; }

  5779. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5780. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5781. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5782. enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&

  5783.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5784. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5785. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5786. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5787. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5788. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5789. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5790. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5791. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5792. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5793. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5794.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5795.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5796. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5797. enabled libdc1394         && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new

  5798. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5799.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5800.                                  warn "using libfdk without pkg-config"; } }

  5801. 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"

  5802. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5803. enabled fontconfig        && enable libfontconfig

  5804. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5805. enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5806. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5807. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5808. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5809.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5810.                                done || die "ERROR: libgsm not found"; }

  5811. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5812. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5813. # While it may appear that require is being used as a pkg-config

  5814. # fallback for libmfx, it is actually being used to detect a different

  5815. # installation route altogether.  If libmfx is installed via the Intel

  5816. # Media SDK or Intel Media Server Studio, these don't come with

  5817. # pkg-config support.  Instead, users should make sure that the build

  5818. # can find the libraries and headers through other means.

  5819. enabled libmfx            && { use_pkg_config libmfx "mfx/mfxvideo.h" MFXInit ||

  5820.                                { require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }

  5821. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5822. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5823. enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc

  5824. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5825. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5826. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5827.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5828.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5829.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5830. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5831. enabled libopenjpeg       && { { check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5832.                                check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||

  5833.                                { check_lib libopenjpeg openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5834.                                { check_lib libopenjpeg openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5835.                                { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5836.                                die "ERROR: libopenjpeg not found"; }

  5837. enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create

  5838. enabled libopus           && {

  5839.     enabled libopus_decoder && {

  5840.         require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5841.     }

  5842.     enabled libopus_encoder && {

  5843.         require_pkg_config opus opus_multistream.h opus_multistream_surround_encoder_create

  5844.     }

  5845. }

  5846. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5847. enabled librsvg           && require_pkg_config librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5848. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5849. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5850. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5851. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5852.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5853. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy

  5854. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5855. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5856. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5857. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5858. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5859. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5860.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5861.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5862. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5863. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5864. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5865. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5866. 

  5867. enabled libvpx            && {

  5868.     enabled libvpx_vp8_decoder && {

  5869.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5870.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5871.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5872.     }

  5873.     enabled libvpx_vp8_encoder && {

  5874.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5875.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5876.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5877.     }

  5878.     enabled libvpx_vp9_decoder && {

  5879.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5880.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx

  5881.     }

  5882.     enabled libvpx_vp9_encoder && {

  5883.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5884.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx

  5885.     }

  5886.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5887.         die "libvpx enabled but no supported decoders found"

  5888.     fi

  5889. }

  5890. 

  5891. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5892. enabled libwebp           && {

  5893.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5894.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5895. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5896.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5897.                                  warn "using libx264 without pkg-config"; } } &&

  5898.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5899.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5900.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5901.                                enable libx262; }

  5902. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5903.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5904.                                die "ERROR: libx265 version must be >= 68."; }

  5905. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs

  5906. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5907. enabled libzimg           && require_pkg_config "zimg >= 2.3.0" zimg.h zimg_get_api_version

  5908. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5909. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5910.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5911.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5912. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5913. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5914.                                { ! enabled cross_compile &&

  5915.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5916.                                  add_ldflags -L/opt/vc/lib/ &&

  5917.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5918.                                die "ERROR: mmal not found" &&

  5919.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5920. enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers

  5921. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5922.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5923.                                die "ERROR: openal not found"; } &&

  5924.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5925.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5926. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5927.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5928.                                die "ERROR: opencl not found"; } &&

  5929.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5930.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5931.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5932. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  5933.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5934.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5935.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5936.                                die "ERROR: opengl not found."

  5937.                              }

  5938. enabled omx_rpi           && { check_header OMX_Core.h ||

  5939.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  5940.                                die "ERROR: OpenMAX IL headers not found"; }

  5941. enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }

  5942. enabled openssl           && { use_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||

  5943.                                use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  5944.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5945.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5946.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5947.                                die "ERROR: openssl not found"; }

  5948. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5949. 

  5950. if enabled gcrypt; then

  5951.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5952.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  5953.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  5954.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  5955.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  5956.             die "ERROR: gcrypt not found"

  5957.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_extralibs

  5958.     else

  5959.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  5960.     fi

  5961. fi

  5962. 

  5963. disabled sdl && disable sdl2

  5964. if ! disabled sdl2; then

  5965.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  5966.     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then

  5967.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  5968.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  5969.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  5970.     else

  5971.       if "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  5972.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  5973.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  5974.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  5975.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  5976.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  5977.       fi

  5978.     fi

  5979.     if test $target_os = "mingw32"; then

  5980.         sdl2_extralibs="$sdl2_extralibs -mconsole"

  5981.     fi

  5982. fi

  5983. enabled sdl2 && enable sdl && add_cflags $sdl2_cflags && add_extralibs $sdl2_extralibs

  5984. 

  5985. if enabled decklink; then

  5986.     case $target_os in

  5987.         mingw32*|mingw64*|win32|win64)

  5988.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  5989.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  5990.             ;;

  5991.     esac

  5992. fi

  5993. 

  5994. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5995.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security"; }

  5996. 

  5997. disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  5998.                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }

  5999. 

  6000. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6001. enabled makeinfo \

  6002.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6003.     && enable makeinfo_html || disable makeinfo_html

  6004. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6005. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6006. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6007. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6008. 

  6009. check_header linux/fb.h

  6010. check_header linux/videodev.h

  6011. check_header linux/videodev2.h

  6012. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6013. 

  6014. check_header sys/videoio.h

  6015. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6016. 

  6017. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6018. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6019. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6020. # w32api 3.12 had it defined wrong

  6021. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6022. 

  6023. check_type "dshow.h" IBaseFilter

  6024. 

  6025. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6026. { check_header dev/bktr/ioctl_meteor.h &&

  6027.   check_header dev/bktr/ioctl_bt848.h; } ||

  6028. { check_header machine/ioctl_meteor.h &&

  6029.   check_header machine/ioctl_bt848.h; } ||

  6030. { check_header dev/video/meteor/ioctl_meteor.h &&

  6031.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  6032. check_header dev/ic/bt8xx.h

  6033. 

  6034. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6035.     enable_safe sys/soundcard.h

  6036. else

  6037.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  6038.     #include <sys/soundcard.h>

  6039.     audio_buf_info abc;

  6040. EOF

  6041. fi

  6042. check_header soundcard.h

  6043. 

  6044. enabled_any alsa_indev alsa_outdev &&

  6045.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6046. 

  6047. enabled jack_indev && check_lib jack jack/jack.h jack_client_open -ljack &&

  6048.     check_func jack_port_get_latency_range -ljack

  6049. 

  6050. enabled_any sndio_indev sndio_outdev && check_lib sndio sndio.h sio_open -lsndio

  6051. 

  6052. if enabled libcdio; then

  6053.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6054.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6055.     die "ERROR: No usable libcdio/cdparanoia found"

  6056. fi

  6057. 

  6058. if ! disabled libxcb; then

  6059.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  6060.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  6061.     } && enable libxcb

  6062. 

  6063. if enabled libxcb; then

  6064.     disabled libxcb_shm || {

  6065.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  6066.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  6067.         } && check_header sys/shm.h && enable libxcb_shm; }

  6068. 

  6069.     disabled libxcb_xfixes || {

  6070.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  6071.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  6072.         } && enable libxcb_xfixes; }

  6073. 

  6074.     disabled libxcb_shape || {

  6075.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  6076.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  6077.         } && enable libxcb_shape; }

  6078. 

  6079.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  6080.     add_extralibs $xcb_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs $xcb_shape_extralibs

  6081. fi

  6082. fi

  6083. 

  6084. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6085. 

  6086. enabled dxva2api_h &&

  6087.     check_cc <<EOF && enable dxva2api_cobj

  6088. #define _WIN32_WINNT 0x0600

  6089. #define COBJMACROS

  6090. #include <windows.h>

  6091. #include <d3d9.h>

  6092. #include <dxva2api.h>

  6093. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  6094. EOF

  6095. 

  6096. enabled dxva2 &&

  6097.     check_lib dxva2_lib windows.h CoTaskMemFree -lole32

  6098. 

  6099. enabled vaapi &&

  6100.     check_lib vaapi va/va.h vaInitialize -lva

  6101. 

  6102. enabled vaapi &&

  6103.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6104.     disable vaapi

  6105. 

  6106. enabled vaapi &&

  6107.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6108. 

  6109. enabled vaapi &&

  6110.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6111. 

  6112. enabled vdpau &&

  6113.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6114.     disable vdpau

  6115. 

  6116. enabled vdpau &&

  6117.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6118. 

  6119. if enabled x86; then

  6120.     case $target_os in

  6121.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6122.             ;;

  6123.         *)

  6124.             disable cuda cuvid nvenc

  6125.             ;;

  6126.     esac

  6127. else

  6128.     disable cuda cuvid nvenc

  6129. fi

  6130. 

  6131. enabled nvenc &&

  6132.     check_cc -I$source_path <<EOF || disable nvenc

  6133. #include "compat/nvenc/nvEncodeAPI.h"

  6134. NV_ENCODE_API_FUNCTION_LIST flist;

  6135. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6136. int main(void) { return 0; }

  6137. EOF

  6138. 

  6139. # Funny iconv installations are not unusual, so check it after all flags have been set

  6140. disabled iconv || check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6141. 

  6142. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6143. 

  6144. # add some useful compiler flags if supported

  6145. check_cflags -Wdeclaration-after-statement

  6146. check_cflags -Wall

  6147. check_cflags -Wdisabled-optimization

  6148. check_cflags -Wpointer-arith

  6149. check_cflags -Wredundant-decls

  6150. check_cflags -Wwrite-strings

  6151. check_cflags -Wtype-limits

  6152. check_cflags -Wundef

  6153. check_cflags -Wmissing-prototypes

  6154. check_cflags -Wno-pointer-to-int-cast

  6155. check_cflags -Wstrict-prototypes

  6156. check_cflags -Wempty-body

  6157. 

  6158. if enabled extra_warnings; then

  6159.     check_cflags -Wcast-qual

  6160.     check_cflags -Wextra

  6161.     check_cflags -Wpedantic

  6162. fi

  6163. 

  6164. check_disable_warning(){

  6165.     warning_flag=-W${1#-Wno-}

  6166.     test_cflags $warning_flag && add_cflags $1

  6167. }

  6168. 

  6169. check_disable_warning -Wno-parentheses

  6170. check_disable_warning -Wno-switch

  6171. check_disable_warning -Wno-format-zero-length

  6172. check_disable_warning -Wno-pointer-sign

  6173. check_disable_warning -Wno-unused-const-variable

  6174. 

  6175. check_disable_warning_headers(){

  6176.     warning_flag=-W${1#-Wno-}

  6177.     test_cflags $warning_flag && add_cflags_headers $1

  6178. }

  6179. 

  6180. check_disable_warning_headers -Wno-deprecated-declarations

  6181. check_disable_warning_headers -Wno-unused-variable

  6182. 

  6183. check_cc <<EOF && enable blocks_extension

  6184. void (^block)(void);

  6185. EOF

  6186. 

  6187. # add some linker flags

  6188. check_ldflags -Wl,--warn-common

  6189. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6190. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6191. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6192. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6193. 

  6194. # add some strip flags

  6195. # -wN '..@*' is more selective than -x, but not available everywhere.

  6196. check_stripflags -wN \'..@*\' || check_stripflags -x

  6197. 

  6198. enabled neon_clobber_test &&

  6199.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6200.                   -Wl,--wrap,avcodec_decode_audio4      \

  6201.                   -Wl,--wrap,avcodec_decode_video2      \

  6202.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6203.                   -Wl,--wrap,avcodec_encode_audio2      \

  6204.                   -Wl,--wrap,avcodec_encode_video2      \

  6205.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6206.                   -Wl,--wrap,avcodec_send_packet        \

  6207.                   -Wl,--wrap,avcodec_receive_packet     \

  6208.                   -Wl,--wrap,avcodec_send_frame         \

  6209.                   -Wl,--wrap,avcodec_receive_frame      \

  6210.                   -Wl,--wrap,swr_convert                \

  6211.                   -Wl,--wrap,avresample_convert ||

  6212.     disable neon_clobber_test

  6213. 

  6214. enabled xmm_clobber_test &&

  6215.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6216.                   -Wl,--wrap,avcodec_decode_audio4      \

  6217.                   -Wl,--wrap,avcodec_decode_video2      \

  6218.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6219.                   -Wl,--wrap,avcodec_encode_audio2      \

  6220.                   -Wl,--wrap,avcodec_encode_video2      \

  6221.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6222.                   -Wl,--wrap,avcodec_send_packet        \

  6223.                   -Wl,--wrap,avcodec_receive_packet     \

  6224.                   -Wl,--wrap,avcodec_send_frame         \

  6225.                   -Wl,--wrap,avcodec_receive_frame      \

  6226.                   -Wl,--wrap,swr_convert                \

  6227.                   -Wl,--wrap,avresample_convert         \

  6228.                   -Wl,--wrap,sws_scale ||

  6229.     disable xmm_clobber_test

  6230. 

  6231. check_ld "cc" <<EOF && enable proper_dce

  6232. extern const int array[512];

  6233. static inline int func(void) { return array[0]; }

  6234. int main(void) { return 0; }

  6235. EOF

  6236. 

  6237. if enabled proper_dce; then

  6238.     echo "X { local: *; };" > $TMPV

  6239.     if test_ldflags -Wl,${version_script},$TMPV; then

  6240.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6241.         check_cc <<EOF && enable symver_asm_label

  6242. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6243. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6244. EOF

  6245.         check_cc <<EOF && enable symver_gnu_asm

  6246. __asm__(".symver ff_foo,av_foo@VERSION");

  6247. void ff_foo(void) {}

  6248. EOF

  6249.     fi

  6250. fi

  6251. 

  6252. if [ -z "$optflags" ]; then

  6253.     if enabled small; then

  6254.         optflags=$cflags_size

  6255.     elif enabled optimizations; then

  6256.         optflags=$cflags_speed

  6257.     else

  6258.         optflags=$cflags_noopt

  6259.     fi

  6260. fi

  6261. 

  6262. if [ -z "$nvccflags" ]; then

  6263.     nvccflags=$nvccflags_default

  6264. fi

  6265. 

  6266. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6267.     nvccflags="$nvccflags -m64"

  6268. else

  6269.     nvccflags="$nvccflags -m32"

  6270. fi

  6271. 

  6272. check_optflags(){

  6273.     check_cflags "$@"

  6274.     enabled lto && check_ldflags "$@"

  6275. }

  6276. 

  6277. check_optflags $optflags

  6278. check_optflags -fno-math-errno

  6279. check_optflags -fno-signed-zeros

  6280. 

  6281. if enabled lto; then

  6282.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6283.     check_cflags  -flto

  6284.     check_ldflags -flto $cpuflags

  6285.     disable inline_asm_direct_symbol_refs

  6286. fi

  6287. 

  6288. enabled ftrapv && check_cflags -ftrapv

  6289. 

  6290. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6291. int x;

  6292. EOF

  6293. 

  6294. 

  6295. if enabled icc; then

  6296.     # Just warnings, no remarks

  6297.     check_cflags -w1

  6298.     # -wd: Disable following warnings

  6299.     # 144, 167, 556: -Wno-pointer-sign

  6300.     # 188: enumerated type mixed with another type

  6301.     # 1292: attribute "foo" ignored

  6302.     # 1419: external declaration in primary source file

  6303.     # 10006: ignoring unknown option -fno-signed-zeros

  6304.     # 10148: ignoring unknown option -Wno-parentheses

  6305.     # 10156: ignoring option '-W'; no argument required

  6306.     # 13200: No EMMS instruction before call to function

  6307.     # 13203: No EMMS instruction before return from function

  6308.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6309.     # 11030: Warning unknown option --as-needed

  6310.     # 10156: ignoring option '-export'; no argument required

  6311.     check_ldflags -wd10156,11030

  6312.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6313.     enable ebp_available

  6314.     # The test above does not test linking

  6315.     enabled lto && disable symver_asm_label

  6316.     if enabled x86_32; then

  6317.         icc_version=$($cc -dumpversion)

  6318.         test ${icc_version%%.*} -ge 11 &&

  6319.             check_cflags -falign-stack=maintain-16-byte ||

  6320.             disable aligned_stack

  6321.     fi

  6322. elif enabled ccc; then

  6323.     # disable some annoying warnings

  6324.     add_cflags -msg_disable bitnotint

  6325.     add_cflags -msg_disable mixfuncvoid

  6326.     add_cflags -msg_disable nonstandcast

  6327.     add_cflags -msg_disable unsupieee

  6328. elif enabled gcc; then

  6329.     check_optflags -fno-tree-vectorize

  6330.     check_cflags -Werror=format-security

  6331.     check_cflags -Werror=implicit-function-declaration

  6332.     check_cflags -Werror=missing-prototypes

  6333.     check_cflags -Werror=return-type

  6334.     check_cflags -Werror=vla

  6335.     check_cflags -Wformat

  6336.     check_cflags -fdiagnostics-color=auto

  6337.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6338. elif enabled llvm_gcc; then

  6339.     check_cflags -mllvm -stack-alignment=16

  6340. elif enabled clang; then

  6341.     check_cflags -mllvm -stack-alignment=16

  6342.     check_cflags -mstack-alignment=16

  6343.     check_cflags -Qunused-arguments

  6344.     check_cflags -Werror=implicit-function-declaration

  6345.     check_cflags -Werror=missing-prototypes

  6346.     check_cflags -Werror=return-type

  6347. elif enabled cparser; then

  6348.     add_cflags -Wno-missing-variable-declarations

  6349.     add_cflags -Wno-empty-statement

  6350. elif enabled armcc; then

  6351.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6352.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6353.     # 2523: use of inline assembly is deprecated

  6354.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6355.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6356.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6357.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6358.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6359.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6360. elif enabled tms470; then

  6361.     add_cflags -pds=824 -pds=837

  6362.     disable inline_asm

  6363. elif enabled pathscale; then

  6364.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6365. elif enabled_any msvc icl; then

  6366.     enabled x86_32 && disable aligned_stack

  6367.     enabled_all x86_32 debug && add_cflags -Oy-

  6368.     enabled debug && add_ldflags -debug

  6369.     enable pragma_deprecated

  6370.     if enabled icl; then

  6371.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6372.         # (correctly) on icl 13.x.

  6373.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6374.             add_cflags -Qansi-alias

  6375.         # Some inline asm is not compilable in debug

  6376.         if enabled debug; then

  6377.             disable ebp_available

  6378.             disable ebx_available

  6379.         fi

  6380.     fi

  6381.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6382.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6383.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6384.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6385.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6386.     # MSVC 2013 and newer can handle it fine.

  6387.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6388.     # happens in config.h.

  6389.     if [ $_restrict != restrict ]; then

  6390.         check_cc <<EOF || add_cflags -FIstdlib.h

  6391. __declspec($_restrict) void* foo(int);

  6392. EOF

  6393.     fi

  6394.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6395.     # Issue has been fixed in MSVC v19.00.24218.

  6396.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6397.         check_cflags -d2SSAOptimizer-

  6398.     # enable utf-8 source processing on VS2015 U2 and newer

  6399.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6400.         add_cflags -utf-8

  6401. fi

  6402. 

  6403. for pfx in "" host_; do

  6404.     varname=${pfx%_}cc_type

  6405.     eval "type=\$$varname"

  6406.     if [ "$type" = "msvc" ]; then

  6407.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6408. static inline int foo(int a) { return a; }

  6409. EOF

  6410.     fi

  6411. done

  6412. 

  6413. case $as_type in

  6414.     clang)

  6415.         add_asflags -Qunused-arguments

  6416.     ;;

  6417. esac

  6418. 

  6419. case $ld_type in

  6420.     clang)

  6421.         check_ldflags -Qunused-arguments

  6422.     ;;

  6423. esac

  6424. 

  6425. case $target_os in

  6426.     osf1)

  6427.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6428.     ;;

  6429. esac

  6430. 

  6431. enable frame_thread_encoder

  6432. 

  6433. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6434. 

  6435. check_deps $CONFIG_LIST       \

  6436.            $CONFIG_EXTRA      \

  6437.            $HAVE_LIST         \

  6438.            $ALL_COMPONENTS    \

  6439. 

  6440. 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"

  6441. 

  6442. 

  6443. if test $target_os = "haiku"; then

  6444.     disable memalign

  6445.     disable posix_memalign

  6446. fi

  6447. 

  6448. # add_dep lib dep

  6449. # -> enable ${lib}_deps_${dep}

  6450. # -> add $dep to ${lib}_deps only once

  6451. add_dep() {

  6452.     lib=$1

  6453.     dep=$2

  6454.     enabled "${lib}_deps_${dep}" && return 0

  6455.     enable  "${lib}_deps_${dep}"

  6456.     prepend "${lib}_deps" $dep

  6457. }

  6458. 

  6459. # merge deps lib components

  6460. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6461. merge_deps() {

  6462.     lib=$1

  6463.     shift

  6464.     for comp in $*; do

  6465.         enabled $comp || continue

  6466.         eval "dep=\"\$${comp}_deps\""

  6467.         for d in $dep; do

  6468.             add_dep $lib $d

  6469.         done

  6470.     done

  6471. }

  6472. 

  6473. merge_deps libavfilter $FILTER_LIST

  6474. 

  6475. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6476. 

  6477. for thread in $THREADS_LIST; do

  6478.     if enabled $thread; then

  6479.         test -n "$thread_type" &&

  6480.             die "ERROR: Only one thread type must be selected." ||

  6481.             thread_type="$thread"

  6482.     fi

  6483. done

  6484. 

  6485. if disabled stdatomic_h; then

  6486.     if enabled atomics_gcc; then

  6487.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6488.     elif enabled atomics_win32; then

  6489.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6490.     elif enabled atomics_suncc; then

  6491.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6492.     elif enabled pthreads; then

  6493.         add_compat atomics/pthread/stdatomic.o

  6494.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6495.     else

  6496.         enabled threads && die "Threading is enabled, but no atomics are available"

  6497.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6498.     fi

  6499. fi

  6500. 

  6501. # Check if requested libraries were found.

  6502. for lib in $AUTODETECT_LIBS; do

  6503.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6504. done

  6505. 

  6506. enabled zlib && add_cppflags -DZLIB_CONST

  6507. 

  6508. # conditional library dependencies, in linking order

  6509. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6510. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6511. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6512. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6513. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6514. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6515. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6516. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6517. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6518. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6519. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6520. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6521. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6522. enabled pan_filter          && prepend avfilter_deps "swresample"

  6523. enabled pp_filter           && prepend avfilter_deps "postproc"

  6524. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6525. enabled resample_filter && prepend avfilter_deps "avresample"

  6526. enabled sab_filter          && prepend avfilter_deps "swscale"

  6527. enabled scale_filter    && prepend avfilter_deps "swscale"

  6528. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6529. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6530. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6531. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6532. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6533. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6534. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6535. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6536. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6537. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6538. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6539. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6540. 

  6541. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6542. 

  6543. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6544. 

  6545. expand_deps(){

  6546.     lib_deps=${1}_deps

  6547.     eval "deps=\$$lib_deps"

  6548.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6549.     unique $lib_deps

  6550. }

  6551. 

  6552. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6553. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6554. 

  6555. map 'expand_deps $v' $LIBRARY_LIST

  6556. 

  6557. license="LGPL version 2.1 or later"

  6558. if enabled nonfree; then

  6559.     license="nonfree and unredistributable"

  6560. elif enabled gplv3; then

  6561.     license="GPL version 3 or later"

  6562. elif enabled lgplv3; then

  6563.     license="LGPL version 3 or later"

  6564. elif enabled gpl; then

  6565.     license="GPL version 2 or later"

  6566. fi

  6567. 

  6568. if test "$quiet" != "yes"; then

  6569. 

  6570. echo "install prefix            $prefix"

  6571. echo "source path               $source_path"

  6572. echo "C compiler                $cc"

  6573. echo "C library                 $libc_type"

  6574. if test "$host_cc" != "$cc"; then

  6575.     echo "host C compiler           $host_cc"

  6576.     echo "host C library            $host_libc_type"

  6577. fi

  6578. echo "ARCH                      $arch ($cpu)"

  6579. if test "$build_suffix" != ""; then

  6580.     echo "build suffix              $build_suffix"

  6581. fi

  6582. if test "$progs_suffix" != ""; then

  6583.     echo "progs suffix              $progs_suffix"

  6584. fi

  6585. if test "$extra_version" != ""; then

  6586.     echo "version string suffix     $extra_version"

  6587. fi

  6588. echo "big-endian                ${bigendian-no}"

  6589. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6590. if enabled x86; then

  6591.     echo "${yasmexe}                      ${yasm-no}"

  6592.     echo "MMX enabled               ${mmx-no}"

  6593.     echo "MMXEXT enabled            ${mmxext-no}"

  6594.     echo "3DNow! enabled            ${amd3dnow-no}"

  6595.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6596.     echo "SSE enabled               ${sse-no}"

  6597.     echo "SSSE3 enabled             ${ssse3-no}"

  6598.     echo "AESNI enabled             ${aesni-no}"

  6599.     echo "AVX enabled               ${avx-no}"

  6600.     echo "XOP enabled               ${xop-no}"

  6601.     echo "FMA3 enabled              ${fma3-no}"

  6602.     echo "FMA4 enabled              ${fma4-no}"

  6603.     echo "i686 features enabled     ${i686-no}"

  6604.     echo "CMOV is fast              ${fast_cmov-no}"

  6605.     echo "EBX available             ${ebx_available-no}"

  6606.     echo "EBP available             ${ebp_available-no}"

  6607. fi

  6608. if enabled aarch64; then

  6609.     echo "NEON enabled              ${neon-no}"

  6610.     echo "VFP enabled               ${vfp-no}"

  6611. fi

  6612. if enabled arm; then

  6613.     echo "ARMv5TE enabled           ${armv5te-no}"

  6614.     echo "ARMv6 enabled             ${armv6-no}"

  6615.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6616.     echo "VFP enabled               ${vfp-no}"

  6617.     echo "NEON enabled              ${neon-no}"

  6618.     echo "THUMB enabled             ${thumb-no}"

  6619. fi

  6620. if enabled mips; then

  6621.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6622.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6623.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6624.     echo "MIPS MSA enabled          ${msa-no}"

  6625.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6626. fi

  6627. if enabled ppc; then

  6628.     echo "AltiVec enabled           ${altivec-no}"

  6629.     echo "VSX enabled               ${vsx-no}"

  6630.     echo "POWER8 enabled            ${power8-no}"

  6631.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6632.     echo "dcbzl available           ${dcbzl-no}"

  6633. fi

  6634. echo "debug symbols             ${debug-no}"

  6635. echo "strip symbols             ${stripping-no}"

  6636. echo "optimize for size         ${small-no}"

  6637. echo "optimizations             ${optimizations-no}"

  6638. echo "static                    ${static-no}"

  6639. echo "shared                    ${shared-no}"

  6640. echo "postprocessing support    ${postproc-no}"

  6641. echo "network support           ${network-no}"

  6642. echo "threading support         ${thread_type-no}"

  6643. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6644. echo "texi2html enabled         ${texi2html-no}"

  6645. echo "perl enabled              ${perl-no}"

  6646. echo "pod2man enabled           ${pod2man-no}"

  6647. echo "makeinfo enabled          ${makeinfo-no}"

  6648. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6649. test -n "$random_seed" &&

  6650.     echo "random seed               ${random_seed}"

  6651. echo

  6652. 

  6653. echo "External libraries:"

  6654. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6655. echo

  6656. 

  6657. echo "External libraries providing hardware acceleration:"

  6658. print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns

  6659. echo

  6660. 

  6661. echo "Libraries:"

  6662. print_enabled '' $LIBRARY_LIST | print_in_columns

  6663. echo

  6664. 

  6665. echo "Programs:"

  6666. print_enabled '' $PROGRAM_LIST | print_in_columns

  6667. echo

  6668. 

  6669. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6670.     echo "Enabled ${type}s:"

  6671.     eval list=\$$(toupper $type)_LIST

  6672.     print_enabled '_*' $list | print_in_columns

  6673.     echo

  6674. done

  6675. 

  6676. if test -n "$ignore_tests"; then

  6677.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6678.     echo "Ignored FATE tests:"

  6679.     echo $ignore_tests | print_in_columns

  6680.     echo

  6681. fi

  6682. 

  6683. echo "License: $license"

  6684. 

  6685. echo "Creating configuration files ..."

  6686. 

  6687. fi # test "$quiet" != "yes"

  6688. 

  6689. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6690. 

  6691. enabled stripping || strip="echo skipping strip"

  6692. 

  6693. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6694. 

  6695. cat > ffbuild/config.mak <<EOF

  6696. # Automatically generated by configure - do not modify!

  6697. ifndef FFMPEG_CONFIG_MAK

  6698. FFMPEG_CONFIG_MAK=1

  6699. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6700. prefix=$prefix

  6701. LIBDIR=\$(DESTDIR)$libdir

  6702. SHLIBDIR=\$(DESTDIR)$shlibdir

  6703. INCDIR=\$(DESTDIR)$incdir

  6704. BINDIR=\$(DESTDIR)$bindir

  6705. DATADIR=\$(DESTDIR)$datadir

  6706. DOCDIR=\$(DESTDIR)$docdir

  6707. MANDIR=\$(DESTDIR)$mandir

  6708. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6709. INSTALL_NAME_DIR=$install_name_dir

  6710. SRC_PATH=$source_path

  6711. SRC_LINK=$source_link

  6712. ifndef MAIN_MAKEFILE

  6713. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6714. endif

  6715. CC_IDENT=$cc_ident

  6716. ARCH=$arch

  6717. INTRINSICS=$intrinsics

  6718. CC=$cc

  6719. CXX=$cxx

  6720. AS=$as

  6721. OBJCC=$objcc

  6722. LD=$ld

  6723. DEPCC=$dep_cc

  6724. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6725. DEPAS=$as

  6726. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6727. YASM=$yasmexe

  6728. DEPYASM=$yasmexe

  6729. AR=$ar

  6730. ARFLAGS=$arflags

  6731. AR_O=$ar_o

  6732. RANLIB=$ranlib

  6733. STRIP=$strip

  6734. NVCC=$nvcc

  6735. CP=cp -p

  6736. LN_S=$ln_s

  6737. CPPFLAGS=$CPPFLAGS

  6738. CFLAGS=$CFLAGS

  6739. CXXFLAGS=$CXXFLAGS

  6740. OBJCFLAGS=$OBJCFLAGS

  6741. ASFLAGS=$ASFLAGS

  6742. NVCCFLAGS=$nvccflags

  6743. AS_C=$AS_C

  6744. AS_O=$AS_O

  6745. OBJCC_C=$OBJCC_C

  6746. OBJCC_E=$OBJCC_E

  6747. OBJCC_O=$OBJCC_O

  6748. CC_C=$CC_C

  6749. CC_E=$CC_E

  6750. CC_O=$CC_O

  6751. CXX_C=$CXX_C

  6752. CXX_O=$CXX_O

  6753. NVCC_C=$NVCC_C

  6754. NVCC_O=$NVCC_O

  6755. LD_O=$LD_O

  6756. LD_LIB=$LD_LIB

  6757. LD_PATH=$LD_PATH

  6758. DLLTOOL=$dlltool

  6759. WINDRES=$windres

  6760. DEPWINDRES=$dep_cc

  6761. DOXYGEN=$doxygen

  6762. LDFLAGS=$LDFLAGS

  6763. LDEXEFLAGS=$LDEXEFLAGS

  6764. LDLIBFLAGS=$LDLIBFLAGS

  6765. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6766. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6767. YASMFLAGS=$YASMFLAGS

  6768. BUILDSUF=$build_suffix

  6769. PROGSSUF=$progs_suffix

  6770. FULLNAME=$FULLNAME

  6771. LIBPREF=$LIBPREF

  6772. LIBSUF=$LIBSUF

  6773. LIBNAME=$LIBNAME

  6774. SLIBPREF=$SLIBPREF

  6775. SLIBSUF=$SLIBSUF

  6776. EXESUF=$EXESUF

  6777. EXTRA_VERSION=$extra_version

  6778. CCDEP=$CCDEP

  6779. CXXDEP=$CXXDEP

  6780. CCDEP_FLAGS=$CCDEP_FLAGS

  6781. ASDEP=$ASDEP

  6782. ASDEP_FLAGS=$ASDEP_FLAGS

  6783. CC_DEPFLAGS=$CC_DEPFLAGS

  6784. AS_DEPFLAGS=$AS_DEPFLAGS

  6785. HOSTCC=$host_cc

  6786. HOSTLD=$host_ld

  6787. HOSTCFLAGS=$host_cflags

  6788. HOSTCPPFLAGS=$host_cppflags

  6789. HOSTEXESUF=$HOSTEXESUF

  6790. HOSTLDFLAGS=$host_ldflags

  6791. HOSTEXTRALIBS=$host_extralibs

  6792. DEPHOSTCC=$host_cc

  6793. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6794. HOSTCCDEP=$HOSTCCDEP

  6795. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6796. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6797. HOSTCC_C=$HOSTCC_C

  6798. HOSTCC_O=$HOSTCC_O

  6799. HOSTLD_O=$HOSTLD_O

  6800. TARGET_EXEC=$target_exec $target_exec_args

  6801. TARGET_PATH=$target_path

  6802. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6803. CFLAGS-ffplay=${sdl2_cflags}

  6804. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6805. ZLIB=$($ldflags_filter -lz)

  6806. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6807. EXTRALIBS=$extralibs

  6808. COMPAT_OBJS=$compat_objs

  6809. INSTALL=$install

  6810. LIBTARGET=${LIBTARGET}

  6811. SLIBNAME=${SLIBNAME}

  6812. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6813. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6814. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6815. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6816. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6817. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6818. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6819. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6820. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6821. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6822. NOREDZONE_FLAGS=$noredzone_flags

  6823. LIBFUZZER_PATH=$libfuzzer_path

  6824. IGNORE_TESTS=$ignore_tests

  6825. EOF

  6826. 

  6827. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6828. 

  6829. print_program_extralibs(){

  6830.     eval "program_extralibs=\$${1}_extralibs"

  6831.     eval echo "EXTRALIBS-${1}=${program_extralibs}" >> ffbuild/config.mak

  6832. }

  6833. 

  6834. map 'print_program_extralibs $v' $PROGRAM_LIST

  6835. 

  6836. cat > $TMPH <<EOF

  6837. /* Automatically generated by configure - do not modify! */

  6838. #ifndef FFMPEG_CONFIG_H

  6839. #define FFMPEG_CONFIG_H

  6840. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6841. #define FFMPEG_LICENSE "$(c_escape $license)"

  6842. #define CONFIG_THIS_YEAR 2017

  6843. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6844. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6845. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6846. #define av_restrict $_restrict

  6847. #define EXTERN_PREFIX "${extern_prefix}"

  6848. #define EXTERN_ASM ${extern_prefix}

  6849. #define BUILDSUF "$build_suffix"

  6850. #define SLIBSUF "$SLIBSUF"

  6851. #define HAVE_MMX2 HAVE_MMXEXT

  6852. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6853. EOF

  6854. 

  6855. test -n "$assert_level" &&

  6856.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6857. 

  6858. test -n "$malloc_prefix" &&

  6859.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6860. 

  6861. if enabled yasm; then

  6862.     append config_files $TMPASM

  6863.     printf '' >$TMPASM

  6864. fi

  6865. 

  6866. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6867. 

  6868. 

  6869. mkdir -p doc

  6870. mkdir -p tests

  6871. mkdir -p tests/api

  6872. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6873. 

  6874. print_config ARCH_   "$config_files" $ARCH_LIST

  6875. print_config HAVE_   "$config_files" $HAVE_LIST

  6876. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6877.                                      $CONFIG_EXTRA      \

  6878.                                      $ALL_COMPONENTS    \

  6879. 

  6880. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6881. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6882. 

  6883. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6884. cp_if_changed $TMPH config.h

  6885. touch ffbuild/.config

  6886. 

  6887. enabled yasm && cp_if_changed $TMPASM config.asm

  6888. 

  6889. cat > $TMPH <<EOF

  6890. /* Generated by ffconf */

  6891. #ifndef AVUTIL_AVCONFIG_H

  6892. #define AVUTIL_AVCONFIG_H

  6893. EOF

  6894. 

  6895. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6896. 

  6897. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6898. 

  6899. cp_if_changed $TMPH libavutil/avconfig.h

  6900. 

  6901. # generate the lists of enabled components

  6902. print_enabled_components(){

  6903.     file=$1

  6904.     struct_name=$2

  6905.     name=$3

  6906.     shift 3

  6907.     echo "static const $struct_name *$name[] = {" > $TMPH

  6908.     for c in $*; do

  6909.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  6910.     done

  6911.     echo "    NULL };" >> $TMPH

  6912.     cp_if_changed $TMPH $file

  6913. }

  6914. 

  6915. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  6916. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  6917. 

  6918. if test -n "$WARNINGS"; then

  6919.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6920.     enabled fatal_warnings && exit 1

  6921. fi

  6922. 

  6923. # Settings for pkg-config files

  6924. 

  6925. cat > ffbuild/config.sh <<EOF

  6926. # Automatically generated by configure - do not modify!

  6927. shared=$shared

  6928. build_suffix=$build_suffix

  6929. prefix=$prefix

  6930. libdir=$libdir

  6931. incdir=$incdir

  6932. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  6933. source_path=${source_path}

  6934. LIBPREF=${LIBPREF}

  6935. LIBSUF=${LIBSUF}

  6936. 

  6937. extralibs_avutil="$LIBRT $LIBM"

  6938. extralibs_avcodec="$extralibs"

  6939. extralibs_avformat="$extralibs"

  6940. extralibs_avdevice="$extralibs"

  6941. extralibs_avfilter="$extralibs"

  6942. extralibs_avresample="$LIBM"

  6943. extralibs_postproc=""

  6944. extralibs_swscale="$LIBM"

  6945. extralibs_swresample="$LIBM $LIBSOXR"

  6946. EOF

  6947. 

  6948. for lib in $LIBRARY_LIST; do

  6949.     lib_deps="$(eval echo \$${lib}_deps)"

  6950.     echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh

  6951. done