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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

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

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

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

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

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

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  93.                            not part of the dynamic linker search path

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

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

  96. 

  97. Licensing options:

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

  99.                            and binaries will be under GPL [no]

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

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

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

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

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

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

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

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

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

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

  112. 

  113. Program options:

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

  115.   --disable-ffmpeg         disable ffmpeg build

  116.   --disable-ffplay         disable ffplay build

  117.   --disable-ffprobe        disable ffprobe build

  118.   --disable-ffserver       disable ffserver build

  119. 

  120. Documentation options:

  121.   --disable-doc            do not build documentation

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

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

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

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

  126. 

  127. Component options:

  128.   --disable-avdevice       disable libavdevice build

  129.   --disable-avcodec        disable libavcodec build

  130.   --disable-avformat       disable libavformat build

  131.   --disable-swresample     disable libswresample build

  132.   --disable-swscale        disable libswscale build

  133.   --disable-postproc       disable libpostproc build

  134.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  140.   --disable-dct            disable DCT code

  141.   --disable-dwt            disable DWT code

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

  143.   --disable-lsp            disable LSP code

  144.   --disable-lzo            disable LZO decoder code

  145.   --disable-mdct           disable MDCT code

  146.   --disable-rdft           disable RDFT code

  147.   --disable-fft            disable FFT code

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

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

  150. 

  151. Individual component options:

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

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

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

  155.   --disable-encoders       disable all encoders

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

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

  158.   --disable-decoders       disable all decoders

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

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

  161.   --disable-hwaccels       disable all hwaccels

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

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

  164.   --disable-muxers         disable all muxers

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

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

  167.   --disable-demuxers       disable all demuxers

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

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

  170.   --disable-parsers        disable all parsers

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

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

  173.   --disable-bsfs           disable all bitstream filters

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

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

  176.   --disable-protocols      disable all protocols

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

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

  179.   --disable-indevs         disable input devices

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

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

  182.   --disable-outdevs        disable output devices

  183.   --disable-devices        disable all devices

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

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

  186.   --disable-filters        disable all filters

  187. 

  188. External library support:

  189. 

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

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

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

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

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

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

  196. 

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

  198.   libraries must be explicitly enabled.

  199. 

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

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

  202. 

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

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

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

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

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

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

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

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

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

  212.                            if openssl is not used [no]

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

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

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

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

  217.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  224.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  262.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  283.   --enable-opencl          enable OpenCL code

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

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

  286.                            if gnutls is not used [no]

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

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

  289.   --disable-sdl2           disable sdl2 [autodetect]

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

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

  292.   --disable-xlib           disable xlib [autodetect]

  293.   --disable-zlib           disable zlib [autodetect]

  294. 

  295.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  312. 

  313. Toolchain options:

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

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

  316.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  367. 

  368. Advanced options (experts only):

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

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

  371.   --disable-symver         disable symbol versioning

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

  373.   --disable-safe-bitstream-reader

  374.                            disable buffer boundary checking in bitreaders

  375.                            (faster, but may crash)

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

  377. 

  378. Optimization options (experts only):

  379.   --disable-asm            disable all assembly optimizations

  380.   --disable-altivec        disable AltiVec optimizations

  381.   --disable-vsx            disable VSX optimizations

  382.   --disable-power8         disable POWER8 optimizations

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

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

  385.   --disable-mmx            disable MMX optimizations

  386.   --disable-mmxext         disable MMXEXT optimizations

  387.   --disable-sse            disable SSE optimizations

  388.   --disable-sse2           disable SSE2 optimizations

  389.   --disable-sse3           disable SSE3 optimizations

  390.   --disable-ssse3          disable SSSE3 optimizations

  391.   --disable-sse4           disable SSE4 optimizations

  392.   --disable-sse42          disable SSE4.2 optimizations

  393.   --disable-avx            disable AVX optimizations

  394.   --disable-xop            disable XOP optimizations

  395.   --disable-fma3           disable FMA3 optimizations

  396.   --disable-fma4           disable FMA4 optimizations

  397.   --disable-avx2           disable AVX2 optimizations

  398.   --disable-aesni          disable AESNI optimizations

  399.   --disable-armv5te        disable armv5te optimizations

  400.   --disable-armv6          disable armv6 optimizations

  401.   --disable-armv6t2        disable armv6t2 optimizations

  402.   --disable-vfp            disable VFP optimizations

  403.   --disable-neon           disable NEON optimizations

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

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

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

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

  408.   --disable-msa            disable MSA optimizations

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

  410.   --disable-mmi            disable Loongson SIMD optimizations

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

  412. 

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

  414.   --disable-debug          disable debugging symbols

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

  416.   --disable-optimizations  disable compiler optimizations

  417.   --enable-extra-warnings  enable more compiler warnings

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

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

  420.                            2 causes a slowdown at runtime.

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

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

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

  424.                            Cannot be combined with --target-exec

  425.   --enable-ftrapv          Trap arithmetic overflows

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

  427.                            \$FATE_SAMPLES at make invocation time.

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

  429.                            used only for debugging purposes)

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

  431.                            should be used only for debugging purposes)

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

  433.   --disable-random

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

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

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

  437.                            (group) and PROB the probability associated with

  438.                            NAME (default 0.5).

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

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

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

  442.   --enable-osfuzz          Enable building fuzzer tool

  443.   --libfuzzer=PATH         path to libfuzzer

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

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

  446. 

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

  448. EOF

  449.   exit 0

  450. }

  451. 

  452. quotes='""'

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

  454.     ncolors=$(tput colors)

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

  456.         bold_color=$(tput bold)

  457.         warn_color=$(tput setaf 3)

  458.         error_color=$(tput setaf 1)

  459.         reset_color=$(tput sgr0)

  460.     fi

  461.     # 72 used instead of 80 since that's the default of pr

  462.     ncols=$(tput cols)

  463. fi

  464. : ${ncols:=72}

  465. 

  466. log(){

  467.     echo "$@" >> $logfile

  468. }

  469. 

  470. log_file(){

  471.     log BEGIN $1

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

  473.     log END $1

  474. }

  475. 

  476. warn(){

  477.     log "WARNING: $*"

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

  479. }

  480. 

  481. die(){

  482.     log "$@"

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

  484.     cat <<EOF

  485. 

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

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

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

  489. EOF

  490.     if disabled logging; then

  491.         cat <<EOF

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

  493. include the log this produces with your report.

  494. EOF

  495.     else

  496.         cat <<EOF

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

  498. solve the problem.

  499. EOF

  500.     fi

  501.     exit 1

  502. }

  503. 

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

  505. toupper(){

  506.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  507. }

  508. 

  509. tolower(){

  510.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  511. }

  512. 

  513. c_escape(){

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

  515. }

  516. 

  517. sh_quote(){

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

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

  520.     echo "$v"

  521. }

  522. 

  523. cleanws(){

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

  525. }

  526. 

  527. filter(){

  528.     pat=$1

  529.     shift

  530.     for v; do

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

  532.     done

  533. }

  534. 

  535. filter_out(){

  536.     pat=$1

  537.     shift

  538.     for v; do

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

  540.     done

  541. }

  542. 

  543. map(){

  544.     m=$1

  545.     shift

  546.     for v; do eval $m; done

  547. }

  548. 

  549. add_suffix(){

  550.     suffix=$1

  551.     shift

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

  553. }

  554. 

  555. set_all(){

  556.     value=$1

  557.     shift

  558.     for var in $*; do

  559.         eval $var=$value

  560.     done

  561. }

  562. 

  563. set_weak(){

  564.     value=$1

  565.     shift

  566.     for var; do

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

  568.     done

  569. }

  570. 

  571. sanitize_var_name(){

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

  573. }

  574. 

  575. set_safe(){

  576.     var=$1

  577.     shift

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

  579. }

  580. 

  581. get_safe(){

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

  583. }

  584. 

  585. pushvar(){

  586.     for pvar in $*; do

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

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

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

  590.     done

  591. }

  592. 

  593. popvar(){

  594.     for pvar in $*; do

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

  596.         test $level = 0 && continue

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

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

  599.         eval ${pvar}_level=$level

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

  601.     done

  602. }

  603. 

  604. request(){

  605.     for var in $*; do

  606.         eval ${var}_requested=yes

  607.         eval $var=

  608.     done

  609. }

  610. 

  611. enable(){

  612.     set_all yes $*

  613. }

  614. 

  615. disable(){

  616.     set_all no $*

  617. }

  618. 

  619. enable_weak(){

  620.     set_weak yes $*

  621. }

  622. 

  623. disable_weak(){

  624.     set_weak no $*

  625. }

  626. 

  627. enable_safe(){

  628.     for var; do

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

  630.     done

  631. }

  632. 

  633. disable_safe(){

  634.     for var; do

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

  636.     done

  637. }

  638. 

  639. do_enable_deep(){

  640.     for var; do

  641.         enabled $var && continue

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

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

  644.         pushvar var sgs

  645.         enable_deep $sel

  646.         popvar sgs

  647.         enable_deep_weak $sgs

  648.         popvar var

  649.     done

  650. }

  651. 

  652. enable_deep(){

  653.     do_enable_deep $*

  654.     enable $*

  655. }

  656. 

  657. enable_deep_weak(){

  658.     for var; do

  659.         disabled $var && continue

  660.         pushvar var

  661.         do_enable_deep $var

  662.         popvar var

  663.         enable_weak $var

  664.     done

  665. }

  666. 

  667. requested(){

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

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

  670. }

  671. 

  672. enabled(){

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

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

  675. }

  676. 

  677. disabled(){

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

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

  680. }

  681. 

  682. enabled_all(){

  683.     for opt; do

  684.         enabled $opt || return 1

  685.     done

  686. }

  687. 

  688. disabled_all(){

  689.     for opt; do

  690.         disabled $opt || return 1

  691.     done

  692. }

  693. 

  694. enabled_any(){

  695.     for opt; do

  696.         enabled $opt && return 0

  697.     done

  698. }

  699. 

  700. disabled_any(){

  701.     for opt; do

  702.         disabled $opt && return 0

  703.     done

  704.     return 1

  705. }

  706. 

  707. set_default(){

  708.     for opt; do

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

  710.     done

  711. }

  712. 

  713. is_in(){

  714.     value=$1

  715.     shift

  716.     for var in $*; do

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

  718.     done

  719.     return 1

  720. }

  721. 

  722. do_check_deps(){

  723.     for cfg; do

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

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

  726.         disabled ${cfg}_checking && continue

  727.         enable ${cfg}_checking

  728.         append allopts $cfg

  729. 

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

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

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

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

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

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

  736. 

  737.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  739.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  740. 

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

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

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

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

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

  746. 

  747.         if enabled $cfg; then

  748.             enable_deep $dep_sel

  749.             enable_deep_weak $dep_sgs

  750.         fi

  751. 

  752.         disable ${cfg}_checking

  753.     done

  754. }

  755. 

  756. check_deps(){

  757.     unset allopts

  758. 

  759.     do_check_deps "$@"

  760. 

  761.     for cfg in $allopts; do

  762.         enabled $cfg || continue

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

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

  765.     done

  766. }

  767. 

  768. print_config(){

  769.     pfx=$1

  770.     files=$2

  771.     shift 2

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

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

  774.         {

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

  776.             v = \$2;

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

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

  779.             for (f in files) {

  780.                 file = files[f];

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

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

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

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

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

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

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

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

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

  790.                     yesno = \$2;

  791.                     c2 = tolower(c);

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

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

  794.                 }

  795.             }

  796.         }"

  797. }

  798. 

  799. print_enabled(){

  800.     suf=$1

  801.     shift

  802.     for v; do

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

  804.     done

  805. }

  806. 

  807. append(){

  808.     var=$1

  809.     shift

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

  811. }

  812. 

  813. prepend(){

  814.     var=$1

  815.     shift

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

  817. }

  818. 

  819. unique(){

  820.     var=$1

  821.     uniq_list=""

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

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

  824.     done

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

  826. }

  827. 

  828. add_cppflags(){

  829.     append CPPFLAGS "$@"

  830. }

  831. 

  832. add_cflags(){

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

  834. }

  835. 

  836. add_cflags_headers(){

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

  838. }

  839. 

  840. add_cxxflags(){

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

  842. }

  843. 

  844. add_asflags(){

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

  846. }

  847. 

  848. add_objcflags(){

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

  850. }

  851. 

  852. add_ldflags(){

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

  854. }

  855. 

  856. add_ldexeflags(){

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

  858. }

  859. 

  860. add_ldlibflags(){

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

  862. }

  863. 

  864. add_stripflags(){

  865.     append ASMSTRIPFLAGS "$@"

  866. }

  867. 

  868. add_extralibs(){

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

  870. }

  871. 

  872. add_host_cppflags(){

  873.     append host_cppflags "$@"

  874. }

  875. 

  876. add_host_cflags(){

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

  878. }

  879. 

  880. add_host_ldflags(){

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

  882. }

  883. 

  884. add_compat(){

  885.     append compat_objs $1

  886.     shift

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

  888. }

  889. 

  890. check_cmd(){

  891.     log "$@"

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

  893. }

  894. 

  895. check_stat(){

  896.     log check_stat "$@"

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

  898. }

  899. 

  900. cc_o(){

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

  902. }

  903. 

  904. cc_e(){

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

  906. }

  907. 

  908. check_cc(){

  909.     log check_cc "$@"

  910.     cat > $TMPC

  911.     log_file $TMPC

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

  913. }

  914. 

  915. check_cxx(){

  916.     log check_cxx "$@"

  917.     cat > $TMPCPP

  918.     log_file $TMPCPP

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

  920. }

  921. 

  922. check_objcc(){

  923.     log check_objcc "$@"

  924.     cat > $TMPM

  925.     log_file $TMPM

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

  927. }

  928. 

  929. check_cpp(){

  930.     log check_cpp "$@"

  931.     cat > $TMPC

  932.     log_file $TMPC

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

  934. }

  935. 

  936. as_o(){

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

  938. }

  939. 

  940. check_as(){

  941.     log check_as "$@"

  942.     cat > $TMPS

  943.     log_file $TMPS

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

  945. }

  946. 

  947. check_inline_asm(){

  948.     log check_inline_asm "$@"

  949.     name="$1"

  950.     code="$2"

  951.     shift 2

  952.     disable $name

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

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

  955. EOF

  956. }

  957. 

  958. check_inline_asm_flags(){

  959.     log check_inline_asm_flags "$@"

  960.     name="$1"

  961.     code="$2"

  962.     flags=''

  963.     shift 2

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

  965.       append flags $1

  966.       shift

  967.     done;

  968.     disable $name

  969.     cat > $TMPC <<EOF

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

  971. EOF

  972.     log_file $TMPC

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

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

  975. }

  976. 

  977. check_insn(){

  978.     log check_insn "$@"

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

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

  981. }

  982. 

  983. check_x86asm(){

  984.     log check_x86asm "$@"

  985.     echo "$1" > $TMPS

  986.     log_file $TMPS

  987.     shift 1

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

  989. }

  990. 

  991. ld_o(){

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

  993. }

  994. 

  995. check_ld(){

  996.     log check_ld "$@"

  997.     type=$1

  998.     shift 1

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

  1000.     libs=$(filter '-l*|*.so' $@)

  1001.     check_$type $($cflags_filter $flags) || return

  1002.     flags=$($ldflags_filter $flags)

  1003.     libs=$($ldflags_filter $libs)

  1004.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1005. }

  1006. 

  1007. print_include(){

  1008.     hdr=$1

  1009.     test "${hdr%.h}" = "${hdr}" &&

  1010.         echo "#include $hdr"    ||

  1011.         echo "#include <$hdr>"

  1012. }

  1013. 

  1014. check_code(){

  1015.     log check_code "$@"

  1016.     check=$1

  1017.     headers=$2

  1018.     code=$3

  1019.     shift 3

  1020.     {

  1021.         for hdr in $headers; do

  1022.             print_include $hdr

  1023.         done

  1024.         echo "int main(void) { $code; return 0; }"

  1025.     } | check_$check "$@"

  1026. }

  1027. 

  1028. check_cppflags(){

  1029.     log check_cppflags "$@"

  1030.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1031. int x;

  1032. EOF

  1033. }

  1034. 

  1035. test_cflags(){

  1036.     log test_cflags "$@"

  1037.     set -- $($cflags_filter "$@")

  1038.     check_cc "$@" <<EOF

  1039. int x;

  1040. EOF

  1041. }

  1042. 

  1043. check_cflags(){

  1044.     log check_cflags "$@"

  1045.     test_cflags "$@" && add_cflags "$@"

  1046. }

  1047. 

  1048. check_cxxflags(){

  1049.     log check_cxxflags "$@"

  1050.     set -- $($cflags_filter "$@")

  1051.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1052. int x;

  1053. EOF

  1054. }

  1055. 

  1056. test_objcflags(){

  1057.     log test_objcflags "$@"

  1058.     set -- $($objcflags_filter "$@")

  1059.     check_objcc "$@" <<EOF

  1060. int x;

  1061. EOF

  1062. }

  1063. 

  1064. check_objcflags(){

  1065.     log check_objcflags "$@"

  1066.     test_objcflags "$@" && add_objcflags "$@"

  1067. }

  1068. 

  1069. test_ldflags(){

  1070.     log test_ldflags "$@"

  1071.     check_ld "cc" "$@" <<EOF

  1072. int main(void){ return 0; }

  1073. EOF

  1074. }

  1075. 

  1076. check_ldflags(){

  1077.     log check_ldflags "$@"

  1078.     test_ldflags "$@" && add_ldflags "$@"

  1079. }

  1080. 

  1081. test_stripflags(){

  1082.     log test_stripflags "$@"

  1083.     # call check_cc to get a fresh TMPO

  1084.     check_cc <<EOF

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

  1086. EOF

  1087.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1088. }

  1089. 

  1090. check_stripflags(){

  1091.     log check_stripflags "$@"

  1092.     test_stripflags "$@" && add_stripflags "$@"

  1093. }

  1094. 

  1095. check_header(){

  1096.     log check_header "$@"

  1097.     header=$1

  1098.     shift

  1099.     disable_safe $header

  1100.     check_cpp "$@" <<EOF && enable_safe $header

  1101. #include <$header>

  1102. int x;

  1103. EOF

  1104. }

  1105. 

  1106. check_header_objcc(){

  1107.     log check_header_objcc "$@"

  1108.     rm -f -- "$TMPO"

  1109.     header=$1

  1110.     shift

  1111.     disable_safe $header

  1112.     {

  1113.        echo "#include <$header>"

  1114.        echo "int main(void) { return 0; }"

  1115.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1116. }

  1117. 

  1118. check_func(){

  1119.     log check_func "$@"

  1120.     func=$1

  1121.     shift

  1122.     disable $func

  1123.     check_ld "cc" "$@" <<EOF && enable $func

  1124. extern int $func();

  1125. int main(void){ $func(); }

  1126. EOF

  1127. }

  1128. 

  1129. check_complexfunc(){

  1130.     log check_complexfunc "$@"

  1131.     func=$1

  1132.     narg=$2

  1133.     shift 2

  1134.     test $narg = 2 && args="f, g" || args="f * I"

  1135.     disable $func

  1136.     check_ld "cc" "$@" <<EOF && enable $func

  1137. #include <complex.h>

  1138. #include <math.h>

  1139. float foo(complex float f, complex float g) { return $func($args); }

  1140. int main(void){ return (int) foo; }

  1141. EOF

  1142. }

  1143. 

  1144. check_mathfunc(){

  1145.     log check_mathfunc "$@"

  1146.     func=$1

  1147.     narg=$2

  1148.     shift 2

  1149.     test $narg = 2 && args="f, g" || args="f"

  1150.     disable $func

  1151.     check_ld "cc" "$@" <<EOF && enable $func

  1152. #include <math.h>

  1153. float foo(float f, float g) { return $func($args); }

  1154. int main(void){ return (int) foo; }

  1155. EOF

  1156. }

  1157. 

  1158. check_func_headers(){

  1159.     log check_func_headers "$@"

  1160.     headers=$1

  1161.     funcs=$2

  1162.     shift 2

  1163.     {

  1164.         for hdr in $headers; do

  1165.             print_include $hdr

  1166.         done

  1167.         echo "#include <stdint.h>"

  1168.         for func in $funcs; do

  1169.             echo "long check_$func(void) { return (long) $func; }"

  1170.         done

  1171.         echo "int main(void) { int ret = 0;"

  1172.         # LTO could optimize out the test functions without this

  1173.         for func in $funcs; do

  1174.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1175.         done

  1176.         echo "return ret; }"

  1177.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1178. }

  1179. 

  1180. check_class_headers_cpp(){

  1181.     log check_class_headers_cpp "$@"

  1182.     headers=$1

  1183.     classes=$2

  1184.     shift 2

  1185.     {

  1186.         for hdr in $headers; do

  1187.             echo "#include <$hdr>"

  1188.         done

  1189.         echo "int main(void) { "

  1190.         i=1

  1191.         for class in $classes; do

  1192.             echo "$class obj$i;"

  1193.             i=$(expr $i + 1)

  1194.         done

  1195.         echo "return 0; }"

  1196.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1197. }

  1198. 

  1199. check_cpp_condition(){

  1200.     log check_cpp_condition "$@"

  1201.     header=$1

  1202.     condition=$2

  1203.     shift 2

  1204.     check_cpp "$@" <<EOF

  1205. #include <$header>

  1206. #if !($condition)

  1207. #error "unsatisfied condition: $condition"

  1208. #endif

  1209. EOF

  1210. }

  1211. 

  1212. test_cflags_cc(){

  1213.     log test_cflags_cc "$@"

  1214.     flags=$1

  1215.     header=$2

  1216.     condition=$3

  1217.     shift 3

  1218.     set -- $($cflags_filter "$flags")

  1219.     check_cc "$@" <<EOF

  1220. #include <$header>

  1221. #if !($condition)

  1222. #error "unsatisfied condition: $condition"

  1223. #endif

  1224. EOF

  1225. }

  1226. 

  1227. check_lib(){

  1228.     log check_lib "$@"

  1229.     name="$1"

  1230.     headers="$2"

  1231.     funcs="$3"

  1232.     shift 3

  1233.     disable $name

  1234.     check_func_headers "$headers" "$funcs" "$@" &&

  1235.         enable $name && add_extralibs "$@"

  1236. }

  1237. 

  1238. check_lib_cpp(){

  1239.     log check_lib_cpp "$@"

  1240.     headers="$1"

  1241.     classes="$2"

  1242.     shift 2

  1243.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1244. }

  1245. 

  1246. check_pkg_config(){

  1247.     log check_pkg_config "$@"

  1248.     pkg_version="$1"

  1249.     pkg="${1%% *}"

  1250.     headers="$2"

  1251.     funcs="$3"

  1252.     shift 3

  1253.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1254.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1255.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1256.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1257.         set_safe "${pkg}_cflags"    $pkg_cflags &&

  1258.         set_safe "${pkg}_extralibs" $pkg_libs

  1259. }

  1260. 

  1261. check_exec(){

  1262.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1263. }

  1264. 

  1265. check_exec_crash(){

  1266.     log check_exec_crash "$@"

  1267.     code=$(cat)

  1268. 

  1269.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1270.     # are safe but may not be available everywhere.  Thus we use

  1271.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1272.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1273.     # is not defined by standard C so it is used conditionally.

  1274. 

  1275.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1276. #include <signal.h>

  1277. static void sighandler(int sig){

  1278.     raise(SIGTERM);

  1279. }

  1280. int foo(void){

  1281.     $code

  1282. }

  1283. int (*func_ptr)(void) = foo;

  1284. int main(void){

  1285.     signal(SIGILL, sighandler);

  1286.     signal(SIGFPE, sighandler);

  1287.     signal(SIGSEGV, sighandler);

  1288. #ifdef SIGBUS

  1289.     signal(SIGBUS, sighandler);

  1290. #endif

  1291.     return func_ptr();

  1292. }

  1293. EOF

  1294. }

  1295. 

  1296. check_type(){

  1297.     log check_type "$@"

  1298.     headers=$1

  1299.     type=$2

  1300.     shift 2

  1301.     disable_safe "$type"

  1302.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1303. }

  1304. 

  1305. check_struct(){

  1306.     log check_struct "$@"

  1307.     headers=$1

  1308.     struct=$2

  1309.     member=$3

  1310.     shift 3

  1311.     disable_safe "${struct}_${member}"

  1312.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1313.         enable_safe "${struct}_${member}"

  1314. }

  1315. 

  1316. check_builtin(){

  1317.     log check_builtin "$@"

  1318.     name=$1

  1319.     headers=$2

  1320.     builtin=$3

  1321.     shift 3

  1322.     disable "$name"

  1323.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1324. }

  1325. 

  1326. check_compile_assert(){

  1327.     log check_compile_assert "$@"

  1328.     name=$1

  1329.     headers=$2

  1330.     condition=$3

  1331.     shift 3

  1332.     disable "$name"

  1333.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1334. }

  1335. 

  1336. require(){

  1337.     log require "$@"

  1338.     name_version="$1"

  1339.     name="${1%% *}"

  1340.     headers="$2"

  1341.     func="$3"

  1342.     shift 3

  1343.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1344. }

  1345. 

  1346. require_cpp(){

  1347.     name="$1"

  1348.     headers="$2"

  1349.     classes="$3"

  1350.     shift 3

  1351.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1352. }

  1353. 

  1354. use_pkg_config(){

  1355.     log use_pkg_config "$@"

  1356.     pkg="$1"

  1357.     check_pkg_config "$@" || return 1

  1358.     add_cflags    $(get_safe "${pkg}_cflags")

  1359.     add_extralibs $(get_safe "${pkg}_extralibs")

  1360. }

  1361. 

  1362. require_pkg_config(){

  1363.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1364. }

  1365. 

  1366. hostcc_e(){

  1367.     eval printf '%s\\n' $HOSTCC_E

  1368. }

  1369. 

  1370. hostcc_o(){

  1371.     eval printf '%s\\n' $HOSTCC_O

  1372. }

  1373. 

  1374. check_host_cc(){

  1375.     log check_host_cc "$@"

  1376.     cat > $TMPC

  1377.     log_file $TMPC

  1378.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1379. }

  1380. 

  1381. check_host_cpp(){

  1382.     log check_host_cpp "$@"

  1383.     cat > $TMPC

  1384.     log_file $TMPC

  1385.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1386. }

  1387. 

  1388. check_host_cppflags(){

  1389.     log check_host_cppflags "$@"

  1390.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1391. int x;

  1392. EOF

  1393. }

  1394. 

  1395. check_host_cflags(){

  1396.     log check_host_cflags "$@"

  1397.     set -- $($host_cflags_filter "$@")

  1398.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1399. int x;

  1400. EOF

  1401. }

  1402. 

  1403. check_host_cpp_condition(){

  1404.     log check_host_cpp_condition "$@"

  1405.     header=$1

  1406.     condition=$2

  1407.     shift 2

  1408.     check_host_cpp "$@" <<EOF

  1409. #include <$header>

  1410. #if !($condition)

  1411. #error "unsatisfied condition: $condition"

  1412. #endif

  1413. EOF

  1414. }

  1415. 

  1416. cp_if_changed(){

  1417.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1418.     mkdir -p "$(dirname $2)"

  1419.     cp -f "$1" "$2"

  1420. }

  1421. 

  1422. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1423. # system-dependent things.

  1424. 

  1425. AVCODEC_COMPONENTS="

  1426.     bsfs

  1427.     decoders

  1428.     encoders

  1429.     hwaccels

  1430.     parsers

  1431. "

  1432. 

  1433. AVDEVICE_COMPONENTS="

  1434.     indevs

  1435.     outdevs

  1436. "

  1437. AVFILTER_COMPONENTS="

  1438.     filters

  1439. "

  1440. AVFORMAT_COMPONENTS="

  1441.     demuxers

  1442.     muxers

  1443.     protocols

  1444. "

  1445. 

  1446. AVRESAMPLE_COMPONENTS=""

  1447. AVUTIL_COMPONENTS=""

  1448. 

  1449. COMPONENT_LIST="

  1450.     $AVCODEC_COMPONENTS

  1451.     $AVDEVICE_COMPONENTS

  1452.     $AVFILTER_COMPONENTS

  1453.     $AVFORMAT_COMPONENTS

  1454.     $AVRESAMPLE_COMPONENTS

  1455.     $AVUTIL_COMPONENTS

  1456. "

  1457. 

  1458. EXAMPLE_LIST="

  1459.     avio_dir_cmd_example

  1460.     avio_reading_example

  1461.     decode_audio_example

  1462.     decode_video_example

  1463.     demuxing_decoding_example

  1464.     encode_audio_example

  1465.     encode_video_example

  1466.     extract_mvs_example

  1467.     filter_audio_example

  1468.     filtering_audio_example

  1469.     filtering_video_example

  1470.     http_multiclient_example

  1471.     metadata_example

  1472.     muxing_example

  1473.     qsvdec_example

  1474.     remuxing_example

  1475.     resampling_audio_example

  1476.     scaling_video_example

  1477.     transcode_aac_example

  1478.     transcoding_example

  1479. "

  1480. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1481.     bzlib

  1482.     iconv

  1483.     libxcb

  1484.     libxcb_shm

  1485.     libxcb_shape

  1486.     libxcb_xfixes

  1487.     lzma

  1488.     schannel

  1489.     sdl

  1490.     sdl2

  1491.     securetransport

  1492.     xlib

  1493.     zlib

  1494. "

  1495. 

  1496. EXTERNAL_LIBRARY_GPL_LIST="

  1497.     avisynth

  1498.     frei0r

  1499.     libcdio

  1500.     librubberband

  1501.     libvidstab

  1502.     libx264

  1503.     libx265

  1504.     libxavs

  1505.     libxvid

  1506. "

  1507. 

  1508. EXTERNAL_LIBRARY_NONFREE_LIST="

  1509.     decklink

  1510.     libfdk_aac

  1511.     openssl

  1512. "

  1513. 

  1514. EXTERNAL_LIBRARY_VERSION3_LIST="

  1515.     gmp

  1516.     libopencore_amrnb

  1517.     libopencore_amrwb

  1518.     libvo_amrwbenc

  1519. "

  1520. 

  1521. EXTERNAL_LIBRARY_GPLV3_LIST="

  1522.     libsmbclient

  1523. "

  1524. 

  1525. EXTERNAL_LIBRARY_LIST="

  1526.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1527.     $EXTERNAL_LIBRARY_GPL_LIST

  1528.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1529.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1530.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1531.     chromaprint

  1532.     crystalhd

  1533.     gcrypt

  1534.     gnutls

  1535.     jni

  1536.     ladspa

  1537.     libass

  1538.     libbluray

  1539.     libbs2b

  1540.     libcaca

  1541.     libcelt

  1542.     libdc1394

  1543.     libflite

  1544.     libfontconfig

  1545.     libfreetype

  1546.     libfribidi

  1547.     libgme

  1548.     libgsm

  1549.     libiec61883

  1550.     libilbc

  1551.     libkvazaar

  1552.     libmodplug

  1553.     libmp3lame

  1554.     libmysofa

  1555.     libopencv

  1556.     libopenh264

  1557.     libopenjpeg

  1558.     libopenmpt

  1559.     libopus

  1560.     libpulse

  1561.     librsvg

  1562.     librtmp

  1563.     libshine

  1564.     libsmbclient

  1565.     libsnappy

  1566.     libsoxr

  1567.     libspeex

  1568.     libssh

  1569.     libtesseract

  1570.     libtheora

  1571.     libtwolame

  1572.     libv4l2

  1573.     libvmaf

  1574.     libvorbis

  1575.     libvpx

  1576.     libwavpack

  1577.     libwebp

  1578.     libzimg

  1579.     libzmq

  1580.     libzvbi

  1581.     mediacodec

  1582.     openal

  1583.     opencl

  1584.     opengl

  1585.     videotoolbox

  1586. "

  1587. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1588.     audiotoolbox

  1589.     cuda

  1590.     cuvid

  1591.     d3d11va

  1592.     dxva2

  1593.     nvenc

  1594.     vaapi

  1595.     vda

  1596.     vdpau

  1597.     videotoolbox_hwaccel

  1598.     xvmc

  1599. "

  1600. 

  1601. HWACCEL_LIBRARY_NONFREE_LIST="

  1602.     cuda_sdk

  1603.     libnpp

  1604. "

  1605. 

  1606. HWACCEL_LIBRARY_LIST="

  1607.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1608.     $HWACCEL_LIBRARY_NONFREE_LIST

  1609.     libmfx

  1610.     mmal

  1611.     omx

  1612. "

  1613. 

  1614. DOCUMENT_LIST="

  1615.     doc

  1616.     htmlpages

  1617.     manpages

  1618.     podpages

  1619.     txtpages

  1620. "

  1621. 

  1622. FEATURE_LIST="

  1623.     ftrapv

  1624.     gray

  1625.     hardcoded_tables

  1626.     omx_rpi

  1627.     runtime_cpudetect

  1628.     safe_bitstream_reader

  1629.     shared

  1630.     small

  1631.     static

  1632.     swscale_alpha

  1633. "

  1634. 

  1635. LIBRARY_LIST="

  1636.     avcodec

  1637.     avdevice

  1638.     avfilter

  1639.     avformat

  1640.     avresample

  1641.     avutil

  1642.     postproc

  1643.     swresample

  1644.     swscale

  1645. "

  1646. 

  1647. LICENSE_LIST="

  1648.     gpl

  1649.     nonfree

  1650.     version3

  1651. "

  1652. 

  1653. PROGRAM_LIST="

  1654.     ffplay

  1655.     ffprobe

  1656.     ffserver

  1657.     ffmpeg

  1658. "

  1659. 

  1660. SUBSYSTEM_LIST="

  1661.     dct

  1662.     dwt

  1663.     error_resilience

  1664.     faan

  1665.     fast_unaligned

  1666.     fft

  1667.     lsp

  1668.     lzo

  1669.     mdct

  1670.     pixelutils

  1671.     network

  1672.     rdft

  1673. "

  1674. 

  1675. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1676. CONFIG_LIST="

  1677.     $DOCUMENT_LIST

  1678.     $EXAMPLE_LIST

  1679.     $EXTERNAL_LIBRARY_LIST

  1680.     $HWACCEL_LIBRARY_LIST

  1681.     $FEATURE_LIST

  1682.     $LICENSE_LIST

  1683.     $LIBRARY_LIST

  1684.     $PROGRAM_LIST

  1685.     $SUBSYSTEM_LIST

  1686.     fontconfig

  1687.     memory_poisoning

  1688.     neon_clobber_test

  1689.     ossfuzz

  1690.     pic

  1691.     thumb

  1692.     valgrind_backtrace

  1693.     xmm_clobber_test

  1694.     $COMPONENT_LIST

  1695. "

  1696. 

  1697. THREADS_LIST="

  1698.     pthreads

  1699.     os2threads

  1700.     w32threads

  1701. "

  1702. 

  1703. ATOMICS_LIST="

  1704.     atomics_gcc

  1705.     atomics_suncc

  1706.     atomics_win32

  1707. "

  1708. 

  1709. AUTODETECT_LIBS="

  1710.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1711.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1712.     $THREADS_LIST

  1713. "

  1714. 

  1715. ARCH_LIST="

  1716.     aarch64

  1717.     alpha

  1718.     arm

  1719.     avr32

  1720.     avr32_ap

  1721.     avr32_uc

  1722.     bfin

  1723.     ia64

  1724.     m68k

  1725.     mips

  1726.     mips64

  1727.     parisc

  1728.     ppc

  1729.     ppc64

  1730.     s390

  1731.     sh4

  1732.     sparc

  1733.     sparc64

  1734.     tilegx

  1735.     tilepro

  1736.     tomi

  1737.     x86

  1738.     x86_32

  1739.     x86_64

  1740. "

  1741. 

  1742. ARCH_EXT_LIST_ARM="

  1743.     armv5te

  1744.     armv6

  1745.     armv6t2

  1746.     armv8

  1747.     neon

  1748.     vfp

  1749.     vfpv3

  1750.     setend

  1751. "

  1752. 

  1753. ARCH_EXT_LIST_MIPS="

  1754.     mipsfpu

  1755.     mips32r2

  1756.     mips32r5

  1757.     mips64r2

  1758.     mips32r6

  1759.     mips64r6

  1760.     mipsdsp

  1761.     mipsdspr2

  1762.     msa

  1763. "

  1764. 

  1765. ARCH_EXT_LIST_LOONGSON="

  1766.     loongson2

  1767.     loongson3

  1768.     mmi

  1769. "

  1770. 

  1771. ARCH_EXT_LIST_X86_SIMD="

  1772.     aesni

  1773.     amd3dnow

  1774.     amd3dnowext

  1775.     avx

  1776.     avx2

  1777.     fma3

  1778.     fma4

  1779.     mmx

  1780.     mmxext

  1781.     sse

  1782.     sse2

  1783.     sse3

  1784.     sse4

  1785.     sse42

  1786.     ssse3

  1787.     xop

  1788. "

  1789. 

  1790. ARCH_EXT_LIST_PPC="

  1791.     altivec

  1792.     dcbzl

  1793.     ldbrx

  1794.     power8

  1795.     ppc4xx

  1796.     vsx

  1797. "

  1798. 

  1799. ARCH_EXT_LIST_X86="

  1800.     $ARCH_EXT_LIST_X86_SIMD

  1801.     cpunop

  1802.     i686

  1803. "

  1804. 

  1805. ARCH_EXT_LIST="

  1806.     $ARCH_EXT_LIST_ARM

  1807.     $ARCH_EXT_LIST_PPC

  1808.     $ARCH_EXT_LIST_X86

  1809.     $ARCH_EXT_LIST_MIPS

  1810.     $ARCH_EXT_LIST_LOONGSON

  1811. "

  1812. 

  1813. ARCH_FEATURES="

  1814.     aligned_stack

  1815.     fast_64bit

  1816.     fast_clz

  1817.     fast_cmov

  1818.     local_aligned_8

  1819.     local_aligned_16

  1820.     local_aligned_32

  1821.     simd_align_16

  1822.     simd_align_32

  1823. "

  1824. 

  1825. BUILTIN_LIST="

  1826.     atomic_cas_ptr

  1827.     machine_rw_barrier

  1828.     MemoryBarrier

  1829.     mm_empty

  1830.     rdtsc

  1831.     sarestart

  1832.     sem_timedwait

  1833.     sync_val_compare_and_swap

  1834. "

  1835. HAVE_LIST_CMDLINE="

  1836.     inline_asm

  1837.     symver

  1838.     x86asm

  1839. "

  1840. 

  1841. HAVE_LIST_PUB="

  1842.     bigendian

  1843.     fast_unaligned

  1844. "

  1845. 

  1846. HEADERS_LIST="

  1847.     alsa_asoundlib_h

  1848.     altivec_h

  1849.     arpa_inet_h

  1850.     asm_types_h

  1851.     cdio_paranoia_h

  1852.     cdio_paranoia_paranoia_h

  1853.     cuda_h

  1854.     d3d11_h

  1855.     dispatch_dispatch_h

  1856.     dev_bktr_ioctl_bt848_h

  1857.     dev_bktr_ioctl_meteor_h

  1858.     dev_ic_bt8xx_h

  1859.     dev_video_bktr_ioctl_bt848_h

  1860.     dev_video_meteor_ioctl_meteor_h

  1861.     direct_h

  1862.     dirent_h

  1863.     dlfcn_h

  1864.     dxgidebug_h

  1865.     dxva_h

  1866.     ES2_gl_h

  1867.     gsm_h

  1868.     io_h

  1869.     mach_mach_time_h

  1870.     machine_ioctl_bt848_h

  1871.     machine_ioctl_meteor_h

  1872.     malloc_h

  1873.     opencv2_core_core_c_h

  1874.     openjpeg_2_2_openjpeg_h

  1875.     openjpeg_2_1_openjpeg_h

  1876.     openjpeg_2_0_openjpeg_h

  1877.     openjpeg_1_5_openjpeg_h

  1878.     OpenGL_gl3_h

  1879.     poll_h

  1880.     sndio_h

  1881.     soundcard_h

  1882.     stdatomic_h

  1883.     sys_mman_h

  1884.     sys_param_h

  1885.     sys_resource_h

  1886.     sys_select_h

  1887.     sys_soundcard_h

  1888.     sys_time_h

  1889.     sys_un_h

  1890.     sys_videoio_h

  1891.     termios_h

  1892.     udplite_h

  1893.     unistd_h

  1894.     valgrind_valgrind_h

  1895.     windows_h

  1896.     winsock2_h

  1897. "

  1898. 

  1899. INTRINSICS_LIST="

  1900.     intrinsics_neon

  1901. "

  1902. 

  1903. COMPLEX_FUNCS="

  1904.     cabs

  1905.     cexp

  1906. "

  1907. 

  1908. MATH_FUNCS="

  1909.     atanf

  1910.     atan2f

  1911.     cbrt

  1912.     cbrtf

  1913.     copysign

  1914.     cosf

  1915.     erf

  1916.     exp2

  1917.     exp2f

  1918.     expf

  1919.     hypot

  1920.     isfinite

  1921.     isinf

  1922.     isnan

  1923.     ldexpf

  1924.     llrint

  1925.     llrintf

  1926.     log2

  1927.     log2f

  1928.     log10f

  1929.     lrint

  1930.     lrintf

  1931.     powf

  1932.     rint

  1933.     round

  1934.     roundf

  1935.     sinf

  1936.     trunc

  1937.     truncf

  1938. "

  1939. 

  1940. SYSTEM_FUNCS="

  1941.     access

  1942.     aligned_malloc

  1943.     arc4random

  1944.     clock_gettime

  1945.     closesocket

  1946.     CommandLineToArgvW

  1947.     CoTaskMemFree

  1948.     CryptGenRandom

  1949.     dlopen

  1950.     fcntl

  1951.     flt_lim

  1952.     fork

  1953.     getaddrinfo

  1954.     gethrtime

  1955.     getopt

  1956.     GetProcessAffinityMask

  1957.     GetProcessMemoryInfo

  1958.     GetProcessTimes

  1959.     getrusage

  1960.     GetSystemTimeAsFileTime

  1961.     gettimeofday

  1962.     glob

  1963.     glXGetProcAddress

  1964.     gmtime_r

  1965.     inet_aton

  1966.     isatty

  1967.     jack_port_get_latency_range

  1968.     kbhit

  1969.     LoadLibrary

  1970.     localtime_r

  1971.     lstat

  1972.     lzo1x_999_compress

  1973.     mach_absolute_time

  1974.     MapViewOfFile

  1975.     memalign

  1976.     mkstemp

  1977.     mmap

  1978.     mprotect

  1979.     nanosleep

  1980.     PeekNamedPipe

  1981.     posix_memalign

  1982.     pthread_cancel

  1983.     sched_getaffinity

  1984.     SetConsoleTextAttribute

  1985.     SetConsoleCtrlHandler

  1986.     setmode

  1987.     setrlimit

  1988.     Sleep

  1989.     strerror_r

  1990.     sysconf

  1991.     sysctl

  1992.     usleep

  1993.     UTGetOSTypeFromString

  1994.     VirtualAlloc

  1995.     wglGetProcAddress

  1996. "

  1997. 

  1998. TOOLCHAIN_FEATURES="

  1999.     as_dn_directive

  2000.     as_fpu_directive

  2001.     as_func

  2002.     as_object_arch

  2003.     asm_mod_q

  2004.     attribute_may_alias

  2005.     attribute_packed

  2006.     blocks_extension

  2007.     ebp_available

  2008.     ebx_available

  2009.     gnu_as

  2010.     gnu_windres

  2011.     ibm_asm

  2012.     inline_asm_direct_symbol_refs

  2013.     inline_asm_labels

  2014.     inline_asm_nonlocal_labels

  2015.     pragma_deprecated

  2016.     rsync_contimeout

  2017.     symver_asm_label

  2018.     symver_gnu_asm

  2019.     vfp_args

  2020.     xform_asm

  2021.     xmm_clobbers

  2022. "

  2023. 

  2024. TYPES_LIST="

  2025.     CONDITION_VARIABLE_Ptr

  2026.     socklen_t

  2027.     struct_addrinfo

  2028.     struct_group_source_req

  2029.     struct_ip_mreq_source

  2030.     struct_ipv6_mreq

  2031.     struct_msghdr_msg_flags

  2032.     struct_pollfd

  2033.     struct_rusage_ru_maxrss

  2034.     struct_sctp_event_subscribe

  2035.     struct_sockaddr_in6

  2036.     struct_sockaddr_sa_len

  2037.     struct_sockaddr_storage

  2038.     struct_stat_st_mtim_tv_nsec

  2039.     struct_v4l2_frmivalenum_discrete

  2040. "

  2041. 

  2042. HAVE_LIST="

  2043.     $ARCH_EXT_LIST

  2044.     $(add_suffix _external $ARCH_EXT_LIST)

  2045.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2046.     $ARCH_FEATURES

  2047.     $ATOMICS_LIST

  2048.     $BUILTIN_LIST

  2049.     $COMPLEX_FUNCS

  2050.     $HAVE_LIST_CMDLINE

  2051.     $HAVE_LIST_PUB

  2052.     $HEADERS_LIST

  2053.     $INTRINSICS_LIST

  2054.     $MATH_FUNCS

  2055.     $SYSTEM_FUNCS

  2056.     $THREADS_LIST

  2057.     $TOOLCHAIN_FEATURES

  2058.     $TYPES_LIST

  2059.     alsa

  2060.     atomics_native

  2061.     dos_paths

  2062.     jack

  2063.     libc_msvcrt

  2064.     makeinfo

  2065.     makeinfo_html

  2066.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2067.     perl

  2068.     pod2man

  2069.     sdl2

  2070.     section_data_rel_ro

  2071.     sndio

  2072.     texi2html

  2073.     threads

  2074.     vaapi_drm

  2075.     vaapi_x11

  2076.     vdpau_x11

  2077.     winrt

  2078. "

  2079. 

  2080. # options emitted with CONFIG_ prefix but not available on the command line

  2081. CONFIG_EXTRA="

  2082.     aandcttables

  2083.     ac3dsp

  2084.     audio_frame_queue

  2085.     audiodsp

  2086.     blockdsp

  2087.     bswapdsp

  2088.     cabac

  2089.     dirac_parse

  2090.     dvprofile

  2091.     exif

  2092.     faandct

  2093.     faanidct

  2094.     fdctdsp

  2095.     flacdsp

  2096.     fmtconvert

  2097.     frame_thread_encoder

  2098.     g722dsp

  2099.     golomb

  2100.     gplv3

  2101.     h263dsp

  2102.     h264chroma

  2103.     h264dsp

  2104.     h264parse

  2105.     h264pred

  2106.     h264qpel

  2107.     hevcparse

  2108.     hpeldsp

  2109.     huffman

  2110.     huffyuvdsp

  2111.     huffyuvencdsp

  2112.     idctdsp

  2113.     iirfilter

  2114.     mdct15

  2115.     intrax8

  2116.     iso_media

  2117.     ividsp

  2118.     jpegtables

  2119.     lgplv3

  2120.     libx262

  2121.     llauddsp

  2122.     llviddsp

  2123.     llvidencdsp

  2124.     lpc

  2125.     lzf

  2126.     me_cmp

  2127.     mpeg_er

  2128.     mpegaudio

  2129.     mpegaudiodsp

  2130.     mpegaudioheader

  2131.     mpegvideo

  2132.     mpegvideoenc

  2133.     mss34dsp

  2134.     pixblockdsp

  2135.     qpeldsp

  2136.     qsv

  2137.     qsvdec

  2138.     qsvenc

  2139.     rangecoder

  2140.     riffdec

  2141.     riffenc

  2142.     rtpdec

  2143.     rtpenc_chain

  2144.     rv34dsp

  2145.     sinewin

  2146.     snappy

  2147.     srtp

  2148.     startcode

  2149.     texturedsp

  2150.     texturedspenc

  2151.     tpeldsp

  2152.     vaapi_encode

  2153.     vc1dsp

  2154.     videodsp

  2155.     vp3dsp

  2156.     vp56dsp

  2157.     vp8dsp

  2158.     vt_bt2020

  2159.     wma_freqs

  2160.     wmv2dsp

  2161. "

  2162. 

  2163. CMDLINE_SELECT="

  2164.     $ARCH_EXT_LIST

  2165.     $CONFIG_LIST

  2166.     $HAVE_LIST_CMDLINE

  2167.     $THREADS_LIST

  2168.     asm

  2169.     cross_compile

  2170.     debug

  2171.     extra_warnings

  2172.     logging

  2173.     lto

  2174.     optimizations

  2175.     rpath

  2176.     stripping

  2177. "

  2178. 

  2179. PATHS_LIST="

  2180.     bindir

  2181.     datadir

  2182.     docdir

  2183.     incdir

  2184.     libdir

  2185.     mandir

  2186.     pkgconfigdir

  2187.     prefix

  2188.     shlibdir

  2189.     install_name_dir

  2190. "

  2191. 

  2192. CMDLINE_SET="

  2193.     $PATHS_LIST

  2194.     ar

  2195.     arch

  2196.     as

  2197.     assert_level

  2198.     build_suffix

  2199.     cc

  2200.     objcc

  2201.     cpu

  2202.     cross_prefix

  2203.     custom_allocator

  2204.     cxx

  2205.     dep_cc

  2206.     doxygen

  2207.     env

  2208.     extra_version

  2209.     gas

  2210.     host_cc

  2211.     host_cflags

  2212.     host_extralibs

  2213.     host_ld

  2214.     host_ldflags

  2215.     host_os

  2216.     ignore_tests

  2217.     install

  2218.     ld

  2219.     ln_s

  2220.     logfile

  2221.     malloc_prefix

  2222.     nm

  2223.     optflags

  2224.     nvccflags

  2225.     pkg_config

  2226.     pkg_config_flags

  2227.     progs_suffix

  2228.     random_seed

  2229.     ranlib

  2230.     samples

  2231.     strip

  2232.     sws_max_filter_size

  2233.     sysinclude

  2234.     sysroot

  2235.     target_exec

  2236.     target_os

  2237.     target_path

  2238.     target_samples

  2239.     tempprefix

  2240.     toolchain

  2241.     valgrind

  2242.     x86asmexe

  2243. "

  2244. 

  2245. CMDLINE_APPEND="

  2246.     extra_cflags

  2247.     extra_cxxflags

  2248.     extra_objcflags

  2249.     host_cppflags

  2250. "

  2251. 

  2252. # code dependency declarations

  2253. 

  2254. # architecture extensions

  2255. 

  2256. armv5te_deps="arm"

  2257. armv6_deps="arm"

  2258. armv6t2_deps="arm"

  2259. armv8_deps="aarch64"

  2260. neon_deps_any="aarch64 arm"

  2261. intrinsics_neon_deps="neon"

  2262. vfp_deps_any="aarch64 arm"

  2263. vfpv3_deps="vfp"

  2264. setend_deps="arm"

  2265. 

  2266. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2267. 

  2268. loongson2_deps="mips"

  2269. loongson3_deps="mips"

  2270. mipsfpu_deps="mips"

  2271. mipsdsp_deps="mips"

  2272. mipsdspr2_deps="mips"

  2273. mips32r2_deps="mips"

  2274. mips32r5_deps="mips"

  2275. mips32r6_deps="mips"

  2276. mips64r2_deps="mips"

  2277. mips64r6_deps="mips"

  2278. msa_deps="mipsfpu"

  2279. mmi_deps="mips"

  2280. 

  2281. altivec_deps="ppc"

  2282. dcbzl_deps="ppc"

  2283. ldbrx_deps="ppc"

  2284. ppc4xx_deps="ppc"

  2285. vsx_deps="altivec"

  2286. power8_deps="vsx"

  2287. 

  2288. cpunop_deps="i686"

  2289. x86_64_select="i686"

  2290. x86_64_suggest="fast_cmov"

  2291. 

  2292. amd3dnow_deps="mmx"

  2293. amd3dnowext_deps="amd3dnow"

  2294. i686_deps="x86"

  2295. mmx_deps="x86"

  2296. mmxext_deps="mmx"

  2297. sse_deps="mmxext"

  2298. sse2_deps="sse"

  2299. sse3_deps="sse2"

  2300. ssse3_deps="sse3"

  2301. sse4_deps="ssse3"

  2302. sse42_deps="sse4"

  2303. aesni_deps="sse42"

  2304. avx_deps="sse42"

  2305. xop_deps="avx"

  2306. fma3_deps="avx"

  2307. fma4_deps="avx"

  2308. avx2_deps="avx"

  2309. 

  2310. mmx_external_deps="x86asm"

  2311. mmx_inline_deps="inline_asm"

  2312. mmx_suggest="mmx_external mmx_inline"

  2313. 

  2314. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2315.     eval dep=\$${ext}_deps

  2316.     eval ${ext}_external_deps='"${dep}_external"'

  2317.     eval ${ext}_inline_deps='"${dep}_inline"'

  2318.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2319. done

  2320. 

  2321. aligned_stack_if_any="aarch64 ppc x86"

  2322. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2323. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2324. fast_unaligned_if_any="aarch64 ppc x86"

  2325. simd_align_16_if_any="altivec neon sse"

  2326. simd_align_32_if_any="avx"

  2327. 

  2328. # system capabilities

  2329. symver_if_any="symver_asm_label symver_gnu_asm"

  2330. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2331. 

  2332. # threading support

  2333. atomics_gcc_if="sync_val_compare_and_swap"

  2334. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2335. atomics_win32_if="MemoryBarrier"

  2336. atomics_native_if_any="$ATOMICS_LIST"

  2337. w32threads_deps="atomics_native"

  2338. threads_if_any="$THREADS_LIST"

  2339. 

  2340. # subsystems

  2341. dct_select="rdft"

  2342. dirac_parse_select="golomb"

  2343. error_resilience_select="me_cmp"

  2344. faandct_deps="faan fdctdsp"

  2345. faanidct_deps="faan idctdsp"

  2346. h264dsp_select="startcode"

  2347. hevcparse_select="golomb"

  2348. frame_thread_encoder_deps="encoders threads"

  2349. intrax8_select="blockdsp idctdsp"

  2350. mdct_select="fft"

  2351. mdct15_select="fft"

  2352. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2353. mpeg_er_select="error_resilience"

  2354. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2355. mpegaudiodsp_select="dct"

  2356. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2357. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2358. vc1dsp_select="h264chroma qpeldsp startcode"

  2359. rdft_select="fft"

  2360. 

  2361. # decoders / encoders

  2362. aac_decoder_select="mdct15 mdct sinewin"

  2363. aac_fixed_decoder_select="mdct sinewin"

  2364. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2365. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2366. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2367. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2368. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2369. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2370. adpcm_g722_decoder_select="g722dsp"

  2371. adpcm_g722_encoder_select="g722dsp"

  2372. aic_decoder_select="golomb idctdsp"

  2373. alac_encoder_select="lpc"

  2374. als_decoder_select="bswapdsp"

  2375. amrnb_decoder_select="lsp"

  2376. amrwb_decoder_select="lsp"

  2377. amv_decoder_select="sp5x_decoder exif"

  2378. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2379. ape_decoder_select="bswapdsp llauddsp"

  2380. apng_decoder_select="zlib"

  2381. apng_encoder_select="llvidencdsp zlib"

  2382. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2383. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2384. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2385. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2386. atrac1_decoder_select="mdct sinewin"

  2387. atrac3_decoder_select="mdct"

  2388. atrac3p_decoder_select="mdct sinewin"

  2389. avrn_decoder_select="exif jpegtables"

  2390. bink_decoder_select="blockdsp hpeldsp"

  2391. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2392. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2393. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2394. clearvideo_decoder_select="idctdsp"

  2395. cllc_decoder_select="bswapdsp"

  2396. comfortnoise_encoder_select="lpc"

  2397. cook_decoder_select="audiodsp mdct sinewin"

  2398. cscd_decoder_select="lzo"

  2399. cscd_decoder_suggest="zlib"

  2400. dca_decoder_select="mdct"

  2401. dds_decoder_select="texturedsp"

  2402. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2403. dnxhd_decoder_select="blockdsp idctdsp"

  2404. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2405. dolby_e_decoder_select="mdct"

  2406. dvvideo_decoder_select="dvprofile idctdsp"

  2407. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2408. dxa_decoder_select="zlib"

  2409. dxv_decoder_select="lzf texturedsp"

  2410. eac3_decoder_select="ac3_decoder"

  2411. eac3_encoder_select="ac3_encoder"

  2412. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2413. eatgq_decoder_select="aandcttables"

  2414. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2415. exr_decoder_select="zlib"

  2416. ffv1_decoder_select="rangecoder"

  2417. ffv1_encoder_select="rangecoder"

  2418. ffvhuff_decoder_select="huffyuv_decoder"

  2419. ffvhuff_encoder_select="huffyuv_encoder"

  2420. fic_decoder_select="golomb"

  2421. flac_decoder_select="flacdsp"

  2422. flac_encoder_select="bswapdsp flacdsp lpc"

  2423. flashsv2_decoder_select="zlib"

  2424. flashsv2_encoder_select="zlib"

  2425. flashsv_decoder_select="zlib"

  2426. flashsv_encoder_select="zlib"

  2427. flv_decoder_select="h263_decoder"

  2428. flv_encoder_select="h263_encoder"

  2429. fourxm_decoder_select="blockdsp bswapdsp"

  2430. fraps_decoder_select="bswapdsp huffman"

  2431. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2432. g729_decoder_select="audiodsp"

  2433. h261_decoder_select="mpegvideo"

  2434. h261_encoder_select="aandcttables mpegvideoenc"

  2435. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2436. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2437. h263i_decoder_select="h263_decoder"

  2438. h263p_decoder_select="h263_decoder"

  2439. h263p_encoder_select="h263_encoder"

  2440. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2441. h264_decoder_suggest="error_resilience"

  2442. hap_decoder_select="snappy texturedsp"

  2443. hap_encoder_deps="libsnappy"

  2444. hap_encoder_select="texturedspenc"

  2445. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2446. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2447. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2448. iac_decoder_select="imc_decoder"

  2449. imc_decoder_select="bswapdsp fft mdct sinewin"

  2450. indeo3_decoder_select="hpeldsp"

  2451. indeo4_decoder_select="ividsp"

  2452. indeo5_decoder_select="ividsp"

  2453. interplay_video_decoder_select="hpeldsp"

  2454. jpegls_decoder_select="mjpeg_decoder"

  2455. jv_decoder_select="blockdsp"

  2456. lagarith_decoder_select="llviddsp"

  2457. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2458. magicyuv_decoder_select="llviddsp"

  2459. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2460. metasound_decoder_select="lsp mdct sinewin"

  2461. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2462. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2463. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2464. mjpegb_decoder_select="mjpeg_decoder"

  2465. mlp_decoder_select="mlp_parser"

  2466. mlp_encoder_select="lpc"

  2467. motionpixels_decoder_select="bswapdsp"

  2468. mp1_decoder_select="mpegaudio"

  2469. mp1float_decoder_select="mpegaudio"

  2470. mp2_decoder_select="mpegaudio"

  2471. mp2float_decoder_select="mpegaudio"

  2472. mp3_decoder_select="mpegaudio"

  2473. mp3adu_decoder_select="mpegaudio"

  2474. mp3adufloat_decoder_select="mpegaudio"

  2475. mp3float_decoder_select="mpegaudio"

  2476. mp3on4_decoder_select="mpegaudio"

  2477. mp3on4float_decoder_select="mpegaudio"

  2478. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2479. mpc8_decoder_select="mpegaudiodsp"

  2480. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2481. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2482. mpegvideo_decoder_select="mpegvideo"

  2483. mpeg1video_decoder_select="mpegvideo"

  2484. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2485. mpeg2video_decoder_select="mpegvideo"

  2486. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2487. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2488. mpeg4_encoder_select="h263_encoder"

  2489. msa1_decoder_select="mss34dsp"

  2490. mscc_decoder_select="zlib"

  2491. msmpeg4v1_decoder_select="h263_decoder"

  2492. msmpeg4v2_decoder_select="h263_decoder"

  2493. msmpeg4v2_encoder_select="h263_encoder"

  2494. msmpeg4v3_decoder_select="h263_decoder"

  2495. msmpeg4v3_encoder_select="h263_encoder"

  2496. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2497. mts2_decoder_select="mss34dsp"

  2498. mxpeg_decoder_select="mjpeg_decoder"

  2499. nellymoser_decoder_select="mdct sinewin"

  2500. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2501. nuv_decoder_select="idctdsp lzo"

  2502. on2avc_decoder_select="mdct"

  2503. opus_decoder_deps="swresample"

  2504. opus_decoder_select="mdct15"

  2505. opus_encoder_select="audio_frame_queue mdct15"

  2506. png_decoder_select="zlib"

  2507. png_encoder_select="llvidencdsp zlib"

  2508. prores_decoder_select="blockdsp idctdsp"

  2509. prores_encoder_select="fdctdsp"

  2510. qcelp_decoder_select="lsp"

  2511. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2512. ra_144_decoder_select="audiodsp"

  2513. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2514. ralf_decoder_select="golomb"

  2515. rawvideo_decoder_select="bswapdsp"

  2516. rscc_decoder_select="zlib"

  2517. rtjpeg_decoder_select="me_cmp"

  2518. rv10_decoder_select="h263_decoder"

  2519. rv10_encoder_select="h263_encoder"

  2520. rv20_decoder_select="h263_decoder"

  2521. rv20_encoder_select="h263_encoder"

  2522. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2523. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2524. screenpresso_decoder_select="zlib"

  2525. shorten_decoder_select="bswapdsp"

  2526. sipr_decoder_select="lsp"

  2527. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2528. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2529. sonic_decoder_select="golomb rangecoder"

  2530. sonic_encoder_select="golomb rangecoder"

  2531. sonic_ls_encoder_select="golomb rangecoder"

  2532. sp5x_decoder_select="mjpeg_decoder"

  2533. srgc_decoder_select="zlib"

  2534. svq1_decoder_select="hpeldsp"

  2535. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2536. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2537. svq3_decoder_suggest="zlib"

  2538. tak_decoder_select="audiodsp"

  2539. tdsc_decoder_select="zlib mjpeg_decoder"

  2540. theora_decoder_select="vp3_decoder"

  2541. thp_decoder_select="mjpeg_decoder"

  2542. tiff_decoder_suggest="zlib lzma"

  2543. tiff_encoder_suggest="zlib"

  2544. truehd_decoder_select="mlp_parser"

  2545. truehd_encoder_select="lpc"

  2546. truemotion2_decoder_select="bswapdsp"

  2547. truespeech_decoder_select="bswapdsp"

  2548. tscc_decoder_select="zlib"

  2549. twinvq_decoder_select="mdct lsp sinewin"

  2550. txd_decoder_select="texturedsp"

  2551. utvideo_decoder_select="bswapdsp llviddsp"

  2552. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2553. vble_decoder_select="llviddsp"

  2554. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2555. vc1_qsv_decoder_deps="libmfx"

  2556. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2557. vc1image_decoder_select="vc1_decoder"

  2558. vorbis_decoder_select="mdct"

  2559. vorbis_encoder_select="mdct"

  2560. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2561. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2562. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2563. vp6a_decoder_select="vp6_decoder"

  2564. vp6f_decoder_select="vp6_decoder"

  2565. vp7_decoder_select="h264pred videodsp vp8dsp"

  2566. vp8_decoder_select="h264pred videodsp vp8dsp"

  2567. vp9_decoder_select="videodsp vp9_parser"

  2568. webp_decoder_select="vp8_decoder exif"

  2569. wmalossless_decoder_select="llauddsp"

  2570. wmapro_decoder_select="mdct sinewin wma_freqs"

  2571. wmav1_decoder_select="mdct sinewin wma_freqs"

  2572. wmav1_encoder_select="mdct sinewin wma_freqs"

  2573. wmav2_decoder_select="mdct sinewin wma_freqs"

  2574. wmav2_encoder_select="mdct sinewin wma_freqs"

  2575. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2576. wmv1_decoder_select="h263_decoder"

  2577. wmv1_encoder_select="h263_encoder"

  2578. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2579. wmv2_encoder_select="h263_encoder wmv2dsp"

  2580. wmv3_decoder_select="vc1_decoder"

  2581. wmv3image_decoder_select="wmv3_decoder"

  2582. xma1_decoder_select="wmapro_decoder"

  2583. xma2_decoder_select="wmapro_decoder"

  2584. zerocodec_decoder_select="zlib"

  2585. zlib_decoder_select="zlib"

  2586. zlib_encoder_select="zlib"

  2587. zmbv_decoder_select="zlib"

  2588. zmbv_encoder_select="zlib"

  2589. 

  2590. # platform codecs

  2591. audiotoolbox_deps="AudioToolbox_AudioToolbox_h"

  2592. audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"

  2593. 

  2594. # hardware accelerators

  2595. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2596. cuda_deps_any="dlopen LoadLibrary"

  2597. cuvid_deps="cuda"

  2598. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2599. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"

  2600. dxva2_extralibs="-luser32"

  2601. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"

  2602. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2603. vda_deps="vda_framework pthreads"

  2604. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2605. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2606. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2607. xvmc_deps="X11_extensions_XvMClib_h"

  2608. 

  2609. h263_vaapi_hwaccel_deps="vaapi"

  2610. h263_vaapi_hwaccel_select="h263_decoder"

  2611. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2612. h263_videotoolbox_hwaccel_select="h263_decoder"

  2613. h264_cuvid_hwaccel_deps="cuda cuvid"

  2614. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2615. h264_d3d11va_hwaccel_deps="d3d11va"

  2616. h264_d3d11va_hwaccel_select="h264_decoder"

  2617. h264_d3d11va2_hwaccel_deps="d3d11va"

  2618. h264_d3d11va2_hwaccel_select="h264_decoder"

  2619. h264_dxva2_hwaccel_deps="dxva2"

  2620. h264_dxva2_hwaccel_select="h264_decoder"

  2621. h264_mediacodec_hwaccel_deps="mediacodec"

  2622. h264_mmal_hwaccel_deps="mmal"

  2623. h264_qsv_hwaccel_deps="libmfx"

  2624. h264_vaapi_hwaccel_deps="vaapi"

  2625. h264_vaapi_hwaccel_select="h264_decoder"

  2626. h264_vda_hwaccel_deps="vda"

  2627. h264_vda_hwaccel_select="h264_decoder"

  2628. h264_vda_old_hwaccel_deps="vda"

  2629. h264_vda_old_hwaccel_select="h264_decoder"

  2630. h264_vdpau_hwaccel_deps="vdpau"

  2631. h264_vdpau_hwaccel_select="h264_decoder"

  2632. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2633. h264_videotoolbox_hwaccel_select="h264_decoder"

  2634. hevc_cuvid_hwaccel_deps="cuda cuvid"

  2635. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2636. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2637. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2638. hevc_mediacodec_hwaccel_deps="mediacodec"

  2639. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2640. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2641. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2642. hevc_dxva2_hwaccel_select="hevc_decoder"

  2643. hevc_qsv_hwaccel_deps="libmfx"

  2644. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2645. hevc_vaapi_hwaccel_select="hevc_decoder"

  2646. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2647. hevc_vdpau_hwaccel_select="hevc_decoder"

  2648. mjpeg_cuvid_hwaccel_deps="cuda cuvid"

  2649. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2650. mpeg_xvmc_hwaccel_deps="xvmc"

  2651. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2652. mpeg1_cuvid_hwaccel_deps="cuda cuvid"

  2653. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2654. mpeg1_vdpau_hwaccel_deps="vdpau"

  2655. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2656. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2657. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2658. mpeg1_xvmc_hwaccel_deps="xvmc"

  2659. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2660. mpeg2_cuvid_hwaccel_deps="cuda cuvid"

  2661. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2662. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2663. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2664. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2665. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2666. mpeg2_dxva2_hwaccel_deps="dxva2"

  2667. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2668. mpeg2_mediacodec_hwaccel_deps="mediacodec"

  2669. mpeg2_mmal_hwaccel_deps="mmal"

  2670. mpeg2_qsv_hwaccel_deps="libmfx"

  2671. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2672. mpeg2_vaapi_hwaccel_deps="vaapi"

  2673. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2674. mpeg2_vdpau_hwaccel_deps="vdpau"

  2675. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2676. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2677. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2678. mpeg2_xvmc_hwaccel_deps="xvmc"

  2679. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2680. mpeg4_cuvid_hwaccel_deps="cuda cuvid"

  2681. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2682. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2683. mpeg4_mmal_hwaccel_deps="mmal"

  2684. mpeg4_vaapi_hwaccel_deps="vaapi"

  2685. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2686. mpeg4_vdpau_hwaccel_deps="vdpau"

  2687. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2688. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2689. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2690. vc1_cuvid_hwaccel_deps="cuda cuvid"

  2691. vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2692. vc1_d3d11va_hwaccel_deps="d3d11va"

  2693. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2694. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2695. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2696. vc1_dxva2_hwaccel_deps="dxva2"

  2697. vc1_dxva2_hwaccel_select="vc1_decoder"

  2698. vc1_mmal_hwaccel_deps="mmal"

  2699. vc1_qsv_hwaccel_deps="libmfx"

  2700. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2701. vc1_vaapi_hwaccel_deps="vaapi"

  2702. vc1_vaapi_hwaccel_select="vc1_decoder"

  2703. vc1_vdpau_hwaccel_deps="vdpau"

  2704. vc1_vdpau_hwaccel_select="vc1_decoder"

  2705. vp8_cuvid_hwaccel_deps="cuda cuvid"

  2706. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2707. vp9_cuvid_hwaccel_deps="cuda cuvid"

  2708. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2709. vp8_mediacodec_hwaccel_deps="mediacodec"

  2710. vp8_qsv_hwaccel_deps="libmfx"

  2711. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2712. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2713. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2714. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2715. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2716. vp9_dxva2_hwaccel_select="vp9_decoder"

  2717. vp9_mediacodec_hwaccel_deps="mediacodec"

  2718. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2719. vp9_vaapi_hwaccel_select="vp9_decoder"

  2720. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2721. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2722. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2723. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2724. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2725. 

  2726. # hardware-accelerated codecs

  2727. omx_deps="dlopen pthreads"

  2728. omx_extralibs='$ldl'

  2729. omx_rpi_select="omx"

  2730. qsvdec_select="qsv"

  2731. qsvenc_select="qsv"

  2732. vaapi_encode_deps="vaapi"

  2733. 

  2734. hwupload_cuda_filter_deps="cuda"

  2735. scale_npp_filter_deps="cuda libnpp"

  2736. scale_cuda_filter_deps="cuda_sdk"

  2737. 

  2738. nvenc_deps="cuda"

  2739. nvenc_deps_any="dlopen LoadLibrary"

  2740. nvenc_encoder_deps="nvenc"

  2741. 

  2742. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2743. h264_cuvid_decoder_deps="cuda cuvid"

  2744. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2745. h264_mediacodec_decoder_deps="mediacodec"

  2746. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2747. h264_mmal_decoder_deps="mmal"

  2748. h264_nvenc_encoder_deps="nvenc"

  2749. h264_omx_encoder_deps="omx"

  2750. h264_qsv_decoder_deps="libmfx"

  2751. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2752. h264_qsv_encoder_deps="libmfx"

  2753. h264_qsv_encoder_select="qsvenc"

  2754. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2755. h264_vaapi_encoder_select="vaapi_encode golomb"

  2756. h264_vda_decoder_deps="vda"

  2757. h264_vda_decoder_select="h264_decoder"

  2758. h264_vdpau_decoder_deps="vdpau"

  2759. h264_vdpau_decoder_select="h264_decoder"

  2760. hevc_cuvid_decoder_deps="cuda cuvid"

  2761. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2762. hevc_mediacodec_decoder_deps="mediacodec"

  2763. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2764. hevc_nvenc_encoder_deps="nvenc"

  2765. hevc_qsv_decoder_deps="libmfx"

  2766. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2767. hevc_qsv_encoder_deps="libmfx"

  2768. hevc_qsv_encoder_select="hevcparse qsvenc"

  2769. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2770. hevc_vaapi_encoder_select="vaapi_encode golomb"

  2771. mjpeg_cuvid_decoder_deps="cuda cuvid"

  2772. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2773. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2774. mpeg1_cuvid_decoder_deps="cuda cuvid"

  2775. mpeg1_vdpau_decoder_deps="vdpau"

  2776. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2777. mpeg2_crystalhd_decoder_select="crystalhd"

  2778. mpeg2_cuvid_decoder_deps="cuda cuvid"

  2779. mpeg2_mmal_decoder_deps="mmal"

  2780. mpeg2_mediacodec_decoder_deps="mediacodec"

  2781. mpeg2_qsv_decoder_deps="libmfx"

  2782. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2783. mpeg2_qsv_encoder_deps="libmfx"

  2784. mpeg2_qsv_encoder_select="qsvenc"

  2785. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2786. mpeg2_vaapi_encoder_select="vaapi_encode"

  2787. mpeg4_crystalhd_decoder_select="crystalhd"

  2788. mpeg4_cuvid_decoder_deps="cuda cuvid"

  2789. mpeg4_mediacodec_decoder_deps="mediacodec"

  2790. mpeg4_mmal_decoder_deps="mmal"

  2791. mpeg4_omx_encoder_deps="omx"

  2792. mpeg4_vdpau_decoder_deps="vdpau"

  2793. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2794. mpeg_vdpau_decoder_deps="vdpau"

  2795. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2796. msmpeg4_crystalhd_decoder_select="crystalhd"

  2797. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2798. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2799. vc1_crystalhd_decoder_select="crystalhd"

  2800. vc1_cuvid_decoder_deps="cuda cuvid"

  2801. vc1_mmal_decoder_deps="mmal"

  2802. vc1_vdpau_decoder_deps="vdpau"

  2803. vc1_vdpau_decoder_select="vc1_decoder"

  2804. vp8_cuvid_decoder_deps="cuda cuvid"

  2805. vp8_mediacodec_decoder_deps="mediacodec"

  2806. vp8_qsv_decoder_deps="libmfx"

  2807. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2808. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2809. vp8_vaapi_encoder_select="vaapi_encode"

  2810. vp9_cuvid_decoder_deps="cuda cuvid"

  2811. vp9_mediacodec_decoder_deps="mediacodec"

  2812. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2813. vp9_vaapi_encoder_select="vaapi_encode"

  2814. wmv3_crystalhd_decoder_select="crystalhd"

  2815. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2816. 

  2817. # parsers

  2818. h264_parser_select="golomb h264dsp h264parse"

  2819. hevc_parser_select="hevcparse"

  2820. mpegaudio_parser_select="mpegaudioheader"

  2821. mpegvideo_parser_select="mpegvideo"

  2822. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2823. vc1_parser_select="vc1dsp"

  2824. 

  2825. # bitstream_filters

  2826. mjpeg2jpeg_bsf_select="jpegtables"

  2827. 

  2828. # external libraries

  2829. aac_at_decoder_deps="audiotoolbox"

  2830. ac3_at_decoder_deps="audiotoolbox"

  2831. ac3_at_decoder_select="ac3_parser"

  2832. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2833. alac_at_decoder_deps="audiotoolbox"

  2834. amr_nb_at_decoder_deps="audiotoolbox"

  2835. avisynth_deps_any="dlopen LoadLibrary"

  2836. avisynth_demuxer_deps="avisynth"

  2837. avisynth_demuxer_select="riffdec"

  2838. eac3_at_decoder_deps="audiotoolbox"

  2839. eac3_at_decoder_select="ac3_parser"

  2840. gsm_ms_at_decoder_deps="audiotoolbox"

  2841. ilbc_at_decoder_deps="audiotoolbox"

  2842. mp1_at_decoder_deps="audiotoolbox"

  2843. mp2_at_decoder_deps="audiotoolbox"

  2844. mp3_at_decoder_deps="audiotoolbox"

  2845. mp1_at_decoder_select="mpegaudioheader"

  2846. mp2_at_decoder_select="mpegaudioheader"

  2847. mp3_at_decoder_select="mpegaudioheader"

  2848. pcm_alaw_at_decoder_deps="audiotoolbox"

  2849. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2850. qdmc_at_decoder_deps="audiotoolbox"

  2851. qdm2_at_decoder_deps="audiotoolbox"

  2852. aac_at_encoder_deps="audiotoolbox"

  2853. aac_at_encoder_select="audio_frame_queue"

  2854. alac_at_encoder_deps="audiotoolbox"

  2855. alac_at_encoder_select="audio_frame_queue"

  2856. ilbc_at_encoder_deps="audiotoolbox"

  2857. ilbc_at_encoder_select="audio_frame_queue"

  2858. pcm_alaw_at_encoder_deps="audiotoolbox"

  2859. pcm_alaw_at_encoder_select="audio_frame_queue"

  2860. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2861. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2862. chromaprint_muxer_deps="chromaprint"

  2863. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2864. libcelt_decoder_deps="libcelt"

  2865. libfdk_aac_decoder_deps="libfdk_aac"

  2866. libfdk_aac_encoder_deps="libfdk_aac"

  2867. libfdk_aac_encoder_select="audio_frame_queue"

  2868. libgme_demuxer_deps="libgme"

  2869. libgsm_decoder_deps="libgsm"

  2870. libgsm_encoder_deps="libgsm"

  2871. libgsm_ms_decoder_deps="libgsm"

  2872. libgsm_ms_encoder_deps="libgsm"

  2873. libilbc_decoder_deps="libilbc"

  2874. libilbc_encoder_deps="libilbc"

  2875. libkvazaar_encoder_deps="libkvazaar"

  2876. libmodplug_demuxer_deps="libmodplug"

  2877. libmp3lame_encoder_deps="libmp3lame"

  2878. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2879. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2880. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2881. libopencore_amrnb_encoder_select="audio_frame_queue"

  2882. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2883. libopenh264_decoder_deps="libopenh264"

  2884. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2885. libopenh264_encoder_deps="libopenh264"

  2886. libopenjpeg_decoder_deps="libopenjpeg"

  2887. libopenjpeg_encoder_deps="libopenjpeg"

  2888. libopenmpt_demuxer_deps="libopenmpt"

  2889. libopus_decoder_deps="libopus"

  2890. libopus_encoder_deps="libopus"

  2891. libopus_encoder_select="audio_frame_queue"

  2892. librsvg_decoder_deps="librsvg"

  2893. libshine_encoder_deps="libshine"

  2894. libshine_encoder_select="audio_frame_queue"

  2895. libspeex_decoder_deps="libspeex"

  2896. libspeex_encoder_deps="libspeex"

  2897. libspeex_encoder_select="audio_frame_queue"

  2898. libtheora_encoder_deps="libtheora"

  2899. libtwolame_encoder_deps="libtwolame"

  2900. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2901. libvorbis_decoder_deps="libvorbis"

  2902. libvorbis_encoder_deps="libvorbis"

  2903. libvorbis_encoder_select="audio_frame_queue"

  2904. libvpx_vp8_decoder_deps="libvpx"

  2905. libvpx_vp8_encoder_deps="libvpx"

  2906. libvpx_vp9_decoder_deps="libvpx"

  2907. libvpx_vp9_encoder_deps="libvpx"

  2908. libwavpack_encoder_deps="libwavpack"

  2909. libwavpack_encoder_select="audio_frame_queue"

  2910. libwebp_encoder_deps="libwebp"

  2911. libwebp_anim_encoder_deps="libwebp"

  2912. libx262_encoder_deps="libx262"

  2913. libx264_encoder_deps="libx264"

  2914. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2915. libx264rgb_encoder_select="libx264_encoder"

  2916. libx265_encoder_deps="libx265"

  2917. libxavs_encoder_deps="libxavs"

  2918. libxvid_encoder_deps="libxvid"

  2919. libzvbi_teletext_decoder_deps="libzvbi"

  2920. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2921. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2922. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2923. videotoolbox_encoder_suggest="vda_framework vt_bt2020"

  2924. vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"

  2925. 

  2926. # demuxers / muxers

  2927. ac3_demuxer_select="ac3_parser"

  2928. aiff_muxer_select="iso_media"

  2929. asf_demuxer_select="riffdec"

  2930. asf_o_demuxer_select="riffdec"

  2931. asf_muxer_select="riffenc"

  2932. asf_stream_muxer_select="asf_muxer"

  2933. avi_demuxer_select="iso_media riffdec exif"

  2934. avi_muxer_select="riffenc"

  2935. caf_demuxer_select="iso_media riffdec"

  2936. caf_muxer_select="iso_media"

  2937. dash_muxer_select="mp4_muxer"

  2938. dirac_demuxer_select="dirac_parser"

  2939. dts_demuxer_select="dca_parser"

  2940. dtshd_demuxer_select="dca_parser"

  2941. dv_demuxer_select="dvprofile"

  2942. dv_muxer_select="dvprofile"

  2943. dxa_demuxer_select="riffdec"

  2944. eac3_demuxer_select="ac3_parser"

  2945. f4v_muxer_select="mov_muxer"

  2946. fifo_muxer_deps="threads"

  2947. flac_demuxer_select="flac_parser"

  2948. hds_muxer_select="flv_muxer"

  2949. hls_muxer_select="mpegts_muxer"

  2950. image2_alias_pix_demuxer_select="image2_demuxer"

  2951. image2_brender_pix_demuxer_select="image2_demuxer"

  2952. ipod_muxer_select="mov_muxer"

  2953. ismv_muxer_select="mov_muxer"

  2954. matroska_audio_muxer_select="matroska_muxer"

  2955. matroska_demuxer_select="iso_media riffdec"

  2956. matroska_demuxer_suggest="bzlib lzo zlib"

  2957. matroska_muxer_select="iso_media riffenc"

  2958. mmf_muxer_select="riffenc"

  2959. mov_demuxer_select="iso_media riffdec"

  2960. mov_demuxer_suggest="zlib"

  2961. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2962. mp3_demuxer_select="mpegaudio_parser"

  2963. mp3_muxer_select="mpegaudioheader"

  2964. mp4_muxer_select="mov_muxer"

  2965. mpegts_demuxer_select="iso_media"

  2966. mpegts_muxer_select="adts_muxer latm_muxer"

  2967. mpegtsraw_demuxer_select="mpegts_demuxer"

  2968. mxf_d10_muxer_select="mxf_muxer"

  2969. mxf_opatom_muxer_select="mxf_muxer"

  2970. nut_muxer_select="riffenc"

  2971. nuv_demuxer_select="riffdec"

  2972. oga_muxer_select="ogg_muxer"

  2973. ogg_demuxer_select="dirac_parse"

  2974. ogv_muxer_select="ogg_muxer"

  2975. opus_muxer_select="ogg_muxer"

  2976. psp_muxer_select="mov_muxer"

  2977. rtp_demuxer_select="sdp_demuxer"

  2978. rtp_muxer_select="golomb"

  2979. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  2980. rtsp_demuxer_select="http_protocol rtpdec"

  2981. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2982. sap_demuxer_select="sdp_demuxer"

  2983. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2984. sdp_demuxer_select="rtpdec"

  2985. smoothstreaming_muxer_select="ismv_muxer"

  2986. spdif_muxer_select="aac_parser"

  2987. spx_muxer_select="ogg_muxer"

  2988. swf_demuxer_suggest="zlib"

  2989. tak_demuxer_select="tak_parser"

  2990. tg2_muxer_select="mov_muxer"

  2991. tgp_muxer_select="mov_muxer"

  2992. vobsub_demuxer_select="mpegps_demuxer"

  2993. w64_demuxer_select="wav_demuxer"

  2994. w64_muxer_select="wav_muxer"

  2995. wav_demuxer_select="riffdec"

  2996. wav_muxer_select="riffenc"

  2997. webm_muxer_select="iso_media riffenc"

  2998. webm_dash_manifest_demuxer_select="matroska_demuxer"

  2999. wtv_demuxer_select="mpegts_demuxer riffdec"

  3000. wtv_muxer_select="mpegts_muxer riffenc"

  3001. xmv_demuxer_select="riffdec"

  3002. xwma_demuxer_select="riffdec"

  3003. 

  3004. # indevs / outdevs

  3005. alsa_indev_deps="alsa"

  3006. alsa_outdev_deps="alsa"

  3007. avfoundation_indev_deps="pthreads"

  3008. avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"

  3009. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3010. caca_outdev_deps="libcaca"

  3011. decklink_indev_deps="decklink threads"

  3012. decklink_indev_extralibs="-lstdc++"

  3013. decklink_outdev_deps="decklink threads"

  3014. decklink_outdev_extralibs="-lstdc++"

  3015. dshow_indev_deps="IBaseFilter"

  3016. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3017. dv1394_indev_deps="dv1394"

  3018. dv1394_indev_select="dv_demuxer"

  3019. fbdev_indev_deps="linux_fb_h"

  3020. fbdev_outdev_deps="linux_fb_h"

  3021. gdigrab_indev_deps="CreateDIBSection"

  3022. gdigrab_indev_extralibs="-lgdi32"

  3023. gdigrab_indev_select="bmp_decoder"

  3024. iec61883_indev_deps="libiec61883"

  3025. jack_indev_deps="jack"

  3026. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3027. lavfi_indev_deps="avfilter"

  3028. libcdio_indev_deps="libcdio"

  3029. libdc1394_indev_deps="libdc1394"

  3030. libv4l2_indev_deps="libv4l2"

  3031. openal_indev_deps="openal"

  3032. opengl_outdev_deps="opengl"

  3033. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  3034. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  3035. pulse_indev_deps="libpulse"

  3036. pulse_outdev_deps="libpulse"

  3037. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  3038. qtkit_indev_select="qtkit"

  3039. sdl2_outdev_deps="sdl2"

  3040. sndio_indev_deps="sndio"

  3041. sndio_outdev_deps="sndio"

  3042. v4l_indev_deps="linux_videodev_h"

  3043. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3044. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3045. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3046. xcbgrab_indev_deps="libxcb"

  3047. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3048. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3049. 

  3050. # protocols

  3051. async_protocol_deps="threads"

  3052. bluray_protocol_deps="libbluray"

  3053. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  3054. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3055. ffrtmpcrypt_protocol_select="tcp_protocol"

  3056. ffrtmphttp_protocol_deps="!librtmp_protocol"

  3057. ffrtmphttp_protocol_select="http_protocol"

  3058. ftp_protocol_select="tcp_protocol"

  3059. gopher_protocol_select="network"

  3060. http_protocol_select="tcp_protocol"

  3061. httpproxy_protocol_select="tcp_protocol"

  3062. https_protocol_select="tls_protocol"

  3063. icecast_protocol_select="http_protocol"

  3064. librtmp_protocol_deps="librtmp"

  3065. librtmpe_protocol_deps="librtmp"

  3066. librtmps_protocol_deps="librtmp"

  3067. librtmpt_protocol_deps="librtmp"

  3068. librtmpte_protocol_deps="librtmp"

  3069. libsmbclient_protocol_deps="libsmbclient gplv3"

  3070. libssh_protocol_deps="libssh"

  3071. mmsh_protocol_select="http_protocol"

  3072. mmst_protocol_select="network"

  3073. rtmp_protocol_deps="!librtmp_protocol"

  3074. rtmp_protocol_select="tcp_protocol"

  3075. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3076. rtmps_protocol_deps="!librtmp_protocol"

  3077. rtmps_protocol_select="tls_protocol"

  3078. rtmpt_protocol_select="ffrtmphttp_protocol"

  3079. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3080. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3081. rtp_protocol_select="udp_protocol"

  3082. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3083. sctp_protocol_select="network"

  3084. srtp_protocol_select="rtp_protocol srtp"

  3085. tcp_protocol_select="network"

  3086. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  3087. tls_gnutls_protocol_select="tcp_protocol"

  3088. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  3089. tls_openssl_protocol_select="tcp_protocol"

  3090. tls_schannel_protocol_deps="schannel"

  3091. tls_schannel_protocol_select="tcp_protocol"

  3092. tls_securetransport_protocol_deps="securetransport"

  3093. tls_securetransport_protocol_select="tcp_protocol"

  3094. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3095. udp_protocol_select="network"

  3096. udplite_protocol_select="network"

  3097. unix_protocol_deps="sys_un_h"

  3098. unix_protocol_select="network"

  3099. 

  3100. # filters

  3101. afftfilt_filter_deps="avcodec"

  3102. afftfilt_filter_select="fft"

  3103. afir_filter_deps="avcodec"

  3104. afir_filter_select="fft"

  3105. amovie_filter_deps="avcodec avformat"

  3106. aresample_filter_deps="swresample"

  3107. ass_filter_deps="libass"

  3108. atempo_filter_deps="avcodec"

  3109. atempo_filter_select="rdft"

  3110. azmq_filter_deps="libzmq"

  3111. blackframe_filter_deps="gpl"

  3112. boxblur_filter_deps="gpl"

  3113. bs2b_filter_deps="libbs2b"

  3114. colormatrix_filter_deps="gpl"

  3115. cover_rect_filter_deps="avcodec avformat gpl"

  3116. cropdetect_filter_deps="gpl"

  3117. deinterlace_qsv_filter_deps="libmfx"

  3118. deinterlace_vaapi_filter_deps="vaapi"

  3119. delogo_filter_deps="gpl"

  3120. deshake_filter_select="pixelutils"

  3121. drawtext_filter_deps="libfreetype"

  3122. elbg_filter_deps="avcodec"

  3123. eq_filter_deps="gpl"

  3124. fftfilt_filter_deps="avcodec"

  3125. fftfilt_filter_select="rdft"

  3126. find_rect_filter_deps="avcodec avformat gpl"

  3127. firequalizer_filter_deps="avcodec"

  3128. firequalizer_filter_select="rdft"

  3129. flite_filter_deps="libflite"

  3130. framerate_filter_select="pixelutils"

  3131. frei0r_filter_deps="frei0r dlopen"

  3132. frei0r_src_filter_deps="frei0r dlopen"

  3133. fspp_filter_deps="gpl"

  3134. geq_filter_deps="gpl"

  3135. histeq_filter_deps="gpl"

  3136. hqdn3d_filter_deps="gpl"

  3137. interlace_filter_deps="gpl"

  3138. kerndeint_filter_deps="gpl"

  3139. ladspa_filter_deps="ladspa dlopen"

  3140. mcdeint_filter_deps="avcodec gpl"

  3141. movie_filter_deps="avcodec avformat"

  3142. mpdecimate_filter_deps="gpl"

  3143. mpdecimate_filter_select="pixelutils"

  3144. mptestsrc_filter_deps="gpl"

  3145. negate_filter_deps="lut_filter"

  3146. nnedi_filter_deps="gpl"

  3147. ocr_filter_deps="libtesseract"

  3148. ocv_filter_deps="libopencv"

  3149. owdenoise_filter_deps="gpl"

  3150. pan_filter_deps="swresample"

  3151. perspective_filter_deps="gpl"

  3152. phase_filter_deps="gpl"

  3153. pp7_filter_deps="gpl"

  3154. pp_filter_deps="gpl postproc"

  3155. pullup_filter_deps="gpl"

  3156. removelogo_filter_deps="avcodec avformat swscale"

  3157. repeatfields_filter_deps="gpl"

  3158. resample_filter_deps="avresample"

  3159. rubberband_filter_deps="librubberband"

  3160. sab_filter_deps="gpl swscale"

  3161. scale2ref_filter_deps="swscale"

  3162. scale_filter_deps="swscale"

  3163. scale_qsv_filter_deps="libmfx"

  3164. select_filter_select="pixelutils"

  3165. showcqt_filter_deps="avcodec avformat swscale"

  3166. showcqt_filter_select="fft"

  3167. showfreqs_filter_deps="avcodec"

  3168. showfreqs_filter_select="fft"

  3169. showspectrum_filter_deps="avcodec"

  3170. showspectrum_filter_select="fft"

  3171. showspectrumpic_filter_deps="avcodec"

  3172. showspectrumpic_filter_select="fft"

  3173. signature_filter_deps="gpl avcodec avformat"

  3174. smartblur_filter_deps="gpl swscale"

  3175. sofalizer_filter_deps="libmysofa avcodec"

  3176. sofalizer_filter_select="fft"

  3177. spectrumsynth_filter_deps="avcodec"

  3178. spectrumsynth_filter_select="fft"

  3179. spp_filter_deps="gpl avcodec"

  3180. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3181. stereo3d_filter_deps="gpl"

  3182. subtitles_filter_deps="avformat avcodec libass"

  3183. super2xsai_filter_deps="gpl"

  3184. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3185. tinterlace_filter_deps="gpl"

  3186. tinterlace_merge_test_deps="tinterlace_filter"

  3187. tinterlace_pad_test_deps="tinterlace_filter"

  3188. uspp_filter_deps="gpl avcodec"

  3189. vaguedenoiser_filter_deps="gpl"

  3190. vidstabdetect_filter_deps="libvidstab"

  3191. vidstabtransform_filter_deps="libvidstab"

  3192. libvmaf_filter_deps="libvmaf"

  3193. zmq_filter_deps="libzmq"

  3194. zoompan_filter_deps="swscale"

  3195. zscale_filter_deps="libzimg"

  3196. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3197. 

  3198. # examples

  3199. avio_dir_cmd_deps="avformat avutil"

  3200. avio_reading_deps="avformat avcodec avutil"

  3201. decode_audio_example_deps="avcodec avutil"

  3202. decode_video_example_deps="avcodec avutil"

  3203. demuxing_decoding_example_deps="avcodec avformat avutil"

  3204. encode_audio_example_deps="avcodec avutil"

  3205. encode_video_example_deps="avcodec avutil"

  3206. extract_mvs_example_deps="avcodec avformat avutil"

  3207. filter_audio_example_deps="avfilter avutil"

  3208. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3209. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3210. http_multiclient_example_deps="avformat avutil fork"

  3211. metadata_example_deps="avformat avutil"

  3212. muxing_example_deps="avcodec avformat avutil swscale"

  3213. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3214. remuxing_example_deps="avcodec avformat avutil"

  3215. resampling_audio_example_deps="avutil swresample"

  3216. scaling_video_example_deps="avutil swscale"

  3217. transcode_aac_example_deps="avcodec avformat swresample"

  3218. transcoding_example_deps="avfilter avcodec avformat avutil"

  3219. 

  3220. # libraries, in linking order

  3221. avcodec_deps="avutil"

  3222. avcodec_select="null_bsf"

  3223. avdevice_deps="avformat avcodec avutil"

  3224. avfilter_deps="avutil"

  3225. avformat_deps="avcodec avutil"

  3226. avresample_deps="avutil"

  3227. postproc_deps="avutil gpl"

  3228. swresample_deps="avutil"

  3229. swscale_deps="avutil"

  3230. 

  3231. # programs

  3232. ffmpeg_deps="avcodec avfilter avformat swresample"

  3233. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3234.                null_filter

  3235.                trim_filter"

  3236. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3237. ffplay_extralibs='$sdl2_extralibs'

  3238. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3239. ffprobe_deps="avcodec avformat"

  3240. ffserver_deps="avformat fork sarestart"

  3241. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3242. 

  3243. # documentation

  3244. podpages_deps="perl"

  3245. manpages_deps="perl pod2man"

  3246. htmlpages_deps="perl"

  3247. htmlpages_deps_any="makeinfo_html texi2html"

  3248. txtpages_deps="perl makeinfo"

  3249. doc_deps_any="manpages htmlpages podpages txtpages"

  3250. 

  3251. # default parameters

  3252. 

  3253. logfile="ffbuild/config.log"

  3254. 

  3255. # installation paths

  3256. prefix_default="/usr/local"

  3257. bindir_default='${prefix}/bin'

  3258. datadir_default='${prefix}/share/ffmpeg'

  3259. docdir_default='${prefix}/share/doc/ffmpeg'

  3260. incdir_default='${prefix}/include'

  3261. libdir_default='${prefix}/lib'

  3262. mandir_default='${prefix}/share/man'

  3263. 

  3264. # toolchain

  3265. ar_default="ar"

  3266. cc_default="gcc"

  3267. cxx_default="g++"

  3268. host_cc_default="gcc"

  3269. doxygen_default="doxygen"

  3270. install="install"

  3271. ln_s_default="ln -s -f"

  3272. nm_default="nm -g"

  3273. pkg_config_default=pkg-config

  3274. ranlib_default="ranlib"

  3275. strip_default="strip"

  3276. version_script='--version-script'

  3277. x86asmexe_default="nasm"

  3278. windres_default="windres"

  3279. nvcc_default="nvcc"

  3280. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3281. 

  3282. # OS

  3283. target_os_default=$(tolower $(uname -s))

  3284. host_os=$target_os_default

  3285. 

  3286. # machine

  3287. if test "$target_os_default" = aix; then

  3288.     arch_default=$(uname -p)

  3289.     strip_default="strip -X32_64"

  3290. else

  3291.     arch_default=$(uname -m)

  3292. fi

  3293. cpu="generic"

  3294. intrinsics="none"

  3295. 

  3296. # configurable options

  3297. enable $PROGRAM_LIST

  3298. enable $DOCUMENT_LIST

  3299. enable $EXAMPLE_LIST

  3300. enable $(filter_out avresample $LIBRARY_LIST)

  3301. enable stripping

  3302. 

  3303. enable asm

  3304. enable debug

  3305. enable doc

  3306. enable faan faandct faanidct

  3307. enable optimizations

  3308. enable runtime_cpudetect

  3309. enable safe_bitstream_reader

  3310. enable static

  3311. enable swscale_alpha

  3312. enable valgrind_backtrace

  3313. 

  3314. sws_max_filter_size_default=256

  3315. set_default sws_max_filter_size

  3316. 

  3317. # build settings

  3318. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3319. LIBPREF="lib"

  3320. LIBSUF=".a"

  3321. FULLNAME='$(NAME)$(BUILDSUF)'

  3322. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3323. SLIBPREF="lib"

  3324. SLIBSUF=".so"

  3325. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3326. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3327. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3328. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3329. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3330. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3331. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3332. 

  3333. asflags_filter=echo

  3334. cflags_filter=echo

  3335. ldflags_filter=echo

  3336. 

  3337. AS_C='-c'

  3338. AS_O='-o $@'

  3339. CC_C='-c'

  3340. CC_E='-E -o $@'

  3341. CC_O='-o $@'

  3342. CXX_C='-c'

  3343. CXX_O='-o $@'

  3344. OBJCC_C='-c'

  3345. OBJCC_E='-E -o $@'

  3346. OBJCC_O='-o $@'

  3347. X86ASM_O='-o $@'

  3348. LD_O='-o $@'

  3349. LD_LIB='-l%'

  3350. LD_PATH='-L'

  3351. HOSTCC_C='-c'

  3352. HOSTCC_E='-E -o $@'

  3353. HOSTCC_O='-o $@'

  3354. HOSTLD_O='-o $@'

  3355. NVCC_C='-c'

  3356. NVCC_O='-o $@'

  3357. 

  3358. host_extralibs='-lm'

  3359. host_cflags_filter=echo

  3360. host_ldflags_filter=echo

  3361. 

  3362. target_path='$(CURDIR)'

  3363. 

  3364. # since the object filename is not given with the -MM flag, the compiler

  3365. # is only able to print the basename, and we must add the path ourselves

  3366. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3367. DEPFLAGS='-MM'

  3368. 

  3369. mkdir -p ffbuild

  3370. 

  3371. # find source path

  3372. if test -f configure; then

  3373.     source_path=.

  3374. else

  3375.     source_path=$(cd $(dirname "$0"); pwd)

  3376.     case "$source_path" in

  3377.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3378.     esac

  3379.     test -e "$source_path/config.h" &&

  3380.         die "Out of tree builds are impossible with config.h in source dir."

  3381. fi

  3382. 

  3383. for v in "$@"; do

  3384.     r=${v#*=}

  3385.     l=${v%"$r"}

  3386.     r=$(sh_quote "$r")

  3387.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3388. done

  3389. 

  3390. find_things(){

  3391.     thing=$1

  3392.     pattern=$2

  3393.     file=$source_path/$3

  3394.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3395. }

  3396. 

  3397. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3398. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3399. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3400. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3401. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3402. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3403. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3404. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3405. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3406. 

  3407. find_things_extern(){

  3408.     thing=$1

  3409.     pattern=$2

  3410.     file=$source_path/$3

  3411.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3412. }

  3413. 

  3414. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3415. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3416. 

  3417. ALL_COMPONENTS="

  3418.     $BSF_LIST

  3419.     $DECODER_LIST

  3420.     $DEMUXER_LIST

  3421.     $ENCODER_LIST

  3422.     $FILTER_LIST

  3423.     $HWACCEL_LIST

  3424.     $INDEV_LIST

  3425.     $MUXER_LIST

  3426.     $OUTDEV_LIST

  3427.     $PARSER_LIST

  3428.     $PROTOCOL_LIST

  3429. "

  3430. 

  3431. for n in $COMPONENT_LIST; do

  3432.     v=$(toupper ${n%s})_LIST

  3433.     eval enable \$$v

  3434.     eval ${n}_if_any="\$$v"

  3435. done

  3436. 

  3437. enable $ARCH_EXT_LIST

  3438. 

  3439. die_unknown(){

  3440.     echo "Unknown option \"$1\"."

  3441.     echo "See $0 --help for available options."

  3442.     exit 1

  3443. }

  3444. 

  3445. print_in_columns() {

  3446.     cols=$(expr $ncols / 24)

  3447.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3448. }

  3449. 

  3450. show_list() {

  3451.     suffix=_$1

  3452.     shift

  3453.     echo $* | sed s/$suffix//g | print_in_columns

  3454.     exit 0

  3455. }

  3456. 

  3457. rand_list(){

  3458.     IFS=', '

  3459.     set -- $*

  3460.     unset IFS

  3461.     for thing; do

  3462.         comp=${thing%:*}

  3463.         prob=${thing#$comp}

  3464.         prob=${prob#:}

  3465.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3466.         echo "prob ${prob:-0.5}"

  3467.         printf '%s\n' $comp

  3468.     done

  3469. }

  3470. 

  3471. do_random(){

  3472.     action=$1

  3473.     shift

  3474.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3475.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3476. }

  3477. 

  3478. for opt do

  3479.     optval="${opt#*=}"

  3480.     case "$opt" in

  3481.         --extra-ldflags=*)

  3482.             add_ldflags $optval

  3483.         ;;

  3484.         --extra-ldexeflags=*)

  3485.             add_ldexeflags $optval

  3486.         ;;

  3487.         --extra-ldlibflags=*)

  3488.             add_ldlibflags $optval

  3489.         ;;

  3490.         --extra-libs=*)

  3491.             add_extralibs $optval

  3492.         ;;

  3493.         --disable-devices)

  3494.             disable $INDEV_LIST $OUTDEV_LIST

  3495.         ;;

  3496.         --enable-debug=*)

  3497.             debuglevel="$optval"

  3498.         ;;

  3499.         --disable-programs)

  3500.             disable $PROGRAM_LIST

  3501.         ;;

  3502.         --disable-everything)

  3503.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3504.         ;;

  3505.         --disable-all)

  3506.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3507.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3508.             enable avutil

  3509.         ;;

  3510.         --enable-random|--disable-random)

  3511.             action=${opt%%-random}

  3512.             do_random ${action#--} $COMPONENT_LIST

  3513.         ;;

  3514.         --enable-random=*|--disable-random=*)

  3515.             action=${opt%%-random=*}

  3516.             do_random ${action#--} $optval

  3517.         ;;

  3518.         --enable-*=*|--disable-*=*)

  3519.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3520.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3521.             eval list=\$$(toupper $thing)_LIST

  3522.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3523.             list=$(filter "$name" $list)

  3524.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3525.             $action $list

  3526.         ;;

  3527.         --enable-yasm|--disable-yasm)

  3528.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3529.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3530.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3531.         ;;

  3532.         --yasmexe=*)

  3533.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3534.                  "removed in the future. Use --x86asmexe instead."

  3535.             x86asmexe="$optval"

  3536.         ;;

  3537.         --enable-?*|--disable-?*)

  3538.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3539.             if is_in $option $COMPONENT_LIST; then

  3540.                 test $action = disable && action=unset

  3541.                 eval $action \$$(toupper ${option%s})_LIST

  3542.             elif is_in $option $CMDLINE_SELECT; then

  3543.                 $action $option

  3544.             else

  3545.                 die_unknown $opt

  3546.             fi

  3547.         ;;

  3548.         --list-*)

  3549.             NAME="${opt#--list-}"

  3550.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3551.             NAME=${NAME%s}

  3552.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3553.         ;;

  3554.         --help|-h) show_help

  3555.         ;;

  3556.         --quiet|-q) quiet=yes

  3557.         ;;

  3558.         --fatal-warnings) enable fatal_warnings

  3559.         ;;

  3560.         --libfuzzer=*)

  3561.             libfuzzer_path="$optval"

  3562.         ;;

  3563.         *)

  3564.             optname="${opt%%=*}"

  3565.             optname="${optname#--}"

  3566.             optname=$(echo "$optname" | sed 's/-/_/g')

  3567.             if is_in $optname $CMDLINE_SET; then

  3568.                 eval $optname='$optval'

  3569.             elif is_in $optname $CMDLINE_APPEND; then

  3570.                 append $optname "$optval"

  3571.             else

  3572.                 die_unknown $opt

  3573.             fi

  3574.         ;;

  3575.     esac

  3576. done

  3577. 

  3578. for e in $env; do

  3579.     eval "export $e"

  3580. done

  3581. 

  3582. # Mark specifically enabled, but normally autodetected libraries as requested.

  3583. for lib in $AUTODETECT_LIBS; do

  3584.     enabled $lib && request $lib

  3585. done

  3586. 

  3587. # Enable platform codecs by default.

  3588. enable_weak audiotoolbox

  3589. 

  3590. # Enable hwaccels by default.

  3591. enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc

  3592. enable_weak xlib

  3593. 

  3594. enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder

  3595. 

  3596. disabled logging && logfile=/dev/null

  3597. 

  3598. die_license_disabled() {

  3599.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3600. }

  3601. 

  3602. die_license_disabled_gpl() {

  3603.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3604. }

  3605. 

  3606. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3607. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3608. 

  3609. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3610. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3611. 

  3612. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3613. 

  3614. # Disable all the library-specific components if the library itself

  3615. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3616. 

  3617. disable_components(){

  3618.     disabled ${1} && disable $(

  3619.         eval components="\$$(toupper ${1})_COMPONENTS"

  3620.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3621.     )

  3622. }

  3623. 

  3624. map 'disable_components $v' $LIBRARY_LIST

  3625. 

  3626. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3627. set >> $logfile

  3628. 

  3629. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3630. 

  3631. enabled ossfuzz && {

  3632.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3633.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3634. }

  3635. 

  3636. case "$toolchain" in

  3637.     *-asan)

  3638.         cc_default="${toolchain%-asan}"

  3639.         add_cflags  -fsanitize=address

  3640.         add_ldflags -fsanitize=address

  3641.     ;;

  3642.     *-msan)

  3643.         cc_default="${toolchain%-msan}"

  3644.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3645.         add_ldflags -fsanitize=memory

  3646.     ;;

  3647.     *-tsan)

  3648.         cc_default="${toolchain%-tsan}"

  3649.         add_cflags  -fsanitize=thread -fPIE

  3650.         add_ldflags -fsanitize=thread -pie

  3651.         case "$toolchain" in

  3652.             gcc-tsan)

  3653.                 add_cflags  -fPIC

  3654.                 add_ldflags -fPIC

  3655.                 ;;

  3656.         esac

  3657.     ;;

  3658.     *-usan)

  3659.         cc_default="${toolchain%-usan}"

  3660.         add_cflags  -fsanitize=undefined

  3661.         add_ldflags -fsanitize=undefined

  3662.     ;;

  3663.     valgrind-*)

  3664.         target_exec_default="valgrind"

  3665.         case "$toolchain" in

  3666.             valgrind-massif)

  3667.                 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"

  3668.                 ;;

  3669.             valgrind-memcheck)

  3670.                 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"

  3671.                 ;;

  3672.         esac

  3673.     ;;

  3674.     msvc)

  3675.         # Check whether the current MSVC version needs the C99 converter.

  3676.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3677.         # support enough of C99 to build ffmpeg. Default to the new

  3678.         # behaviour if the regexp was unable to match anything, since this

  3679.         # successfully parses the version number of existing supported

  3680.         # versions that require the converter (MSVC 2010 and 2012).

  3681.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3682.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3683.             cc_default="cl"

  3684.             cxx_default="cl"

  3685.         else

  3686.             cc_default="c99wrap cl"

  3687.             cxx_default="c99wrap cl"

  3688.         fi

  3689.         ld_default="$source_path/compat/windows/mslink"

  3690.         nm_default="dumpbin -symbols"

  3691.         ar_default="lib"

  3692.         case "$arch" in

  3693.         arm*)

  3694.             as_default="armasm"

  3695.             ;;

  3696.         esac

  3697.         target_os_default="win32"

  3698.         # Use a relative path for TMPDIR. This makes sure all the

  3699.         # ffconf temp files are written with a relative path, avoiding

  3700.         # issues with msys/win32 path conversion for MSVC parameters

  3701.         # such as -Fo<file> or -out:<file>.

  3702.         TMPDIR=.

  3703.     ;;

  3704.     icl)

  3705.         cc_default="icl"

  3706.         ld_default="xilink"

  3707.         nm_default="dumpbin -symbols"

  3708.         ar_default="xilib"

  3709.         target_os_default="win32"

  3710.         TMPDIR=.

  3711.     ;;

  3712.     gcov)

  3713.         add_cflags  -fprofile-arcs -ftest-coverage

  3714.         add_ldflags -fprofile-arcs -ftest-coverage

  3715.     ;;

  3716.     llvm-cov)

  3717.         add_cflags -fprofile-arcs -ftest-coverage

  3718.         add_ldflags --coverage

  3719.     ;;

  3720.     hardened)

  3721.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3722.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3723.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3724.         add_cflags   -fPIE

  3725.         add_ldexeflags -fPIE -pie

  3726.     ;;

  3727.     ?*)

  3728.         die "Unknown toolchain $toolchain"

  3729.     ;;

  3730. esac

  3731. 

  3732. test -n "$cross_prefix" && enable cross_compile

  3733. 

  3734. if enabled cross_compile; then

  3735.     test -n "$arch" && test -n "$target_os" ||

  3736.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3737. fi

  3738. 

  3739. ar_default="${cross_prefix}${ar_default}"

  3740. cc_default="${cross_prefix}${cc_default}"

  3741. cxx_default="${cross_prefix}${cxx_default}"

  3742. nm_default="${cross_prefix}${nm_default}"

  3743. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3744. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3745.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3746. else

  3747.     ranlib_default="${cross_prefix}${ranlib_default}"

  3748. fi

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

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

  3751. 

  3752. sysinclude_default="${sysroot}/usr/include"

  3753. 

  3754. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3755.     target_exec target_os x86asmexe nvcc

  3756. enabled cross_compile || host_cc_default=$cc

  3757. set_default host_cc

  3758. 

  3759. pkg_config_fail_message=""

  3760. if ! $pkg_config --version >/dev/null 2>&1; then

  3761.     warn "$pkg_config not found, library detection may fail."

  3762.     pkg_config=false

  3763. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3764.     pkg_config_fail_message="

  3765. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3766. fi

  3767. 

  3768. if test $doxygen != $doxygen_default && \

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

  3770.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3771. fi

  3772. 

  3773. exesuf() {

  3774.     case $1 in

  3775.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3776.     esac

  3777. }

  3778. 

  3779. EXESUF=$(exesuf $target_os)

  3780. HOSTEXESUF=$(exesuf $host_os)

  3781. 

  3782. # set temporary file name

  3783. : ${TMPDIR:=$TEMPDIR}

  3784. : ${TMPDIR:=$TMP}

  3785. : ${TMPDIR:=/tmp}

  3786. 

  3787. if [ -n "$tempprefix" ] ; then

  3788.     mktemp(){

  3789.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3790.         echo "$tmpname"

  3791.         mkdir "$tmpname"

  3792.     }

  3793. elif ! check_cmd mktemp -u XXXXXX; then

  3794.     # simple replacement for missing mktemp

  3795.     # NOT SAFE FOR GENERAL USE

  3796.     mktemp(){

  3797.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3798.         echo "$tmpname"

  3799.         mkdir "$tmpname"

  3800.     }

  3801. fi

  3802. 

  3803. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3804.     die "Unable to create temporary directory in $TMPDIR."

  3805. 

  3806. tmpfile(){

  3807.     tmp="${FFTMPDIR}/test"$2

  3808.     (set -C; exec > $tmp) 2> /dev/null ||

  3809.         die "Unable to create temporary file in $FFTMPDIR."

  3810.     eval $1=$tmp

  3811. }

  3812. 

  3813. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3814. trap 'exit 2' INT

  3815. 

  3816. tmpfile TMPASM .asm

  3817. tmpfile TMPC   .c

  3818. tmpfile TMPCPP .cpp

  3819. tmpfile TMPE   $EXESUF

  3820. tmpfile TMPH   .h

  3821. tmpfile TMPM   .m

  3822. tmpfile TMPO   .o

  3823. tmpfile TMPS   .S

  3824. tmpfile TMPSH  .sh

  3825. tmpfile TMPV   .ver

  3826. 

  3827. unset -f mktemp

  3828. 

  3829. chmod +x $TMPE

  3830. 

  3831. # make sure we can execute files in $TMPDIR

  3832. cat > $TMPSH 2>> $logfile <<EOF

  3833. #! /bin/sh

  3834. EOF

  3835. chmod +x $TMPSH >> $logfile 2>&1

  3836. if ! $TMPSH >> $logfile 2>&1; then

  3837.     cat <<EOF

  3838. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3839. variable to another directory and make sure that it is not mounted noexec.

  3840. EOF

  3841.     die "Sanity test failed."

  3842. fi

  3843. 

  3844. armasm_flags(){

  3845.     for flag; do

  3846.         case $flag in

  3847.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3848.             # be passed to gas-preprocessor

  3849.             -M[TD]*)                                            ;;

  3850.             *)                  echo $flag                      ;;

  3851.         esac

  3852.    done

  3853. }

  3854. 

  3855. ccc_flags(){

  3856.     for flag; do

  3857.         case $flag in

  3858.             -std=c99)           echo -c99                       ;;

  3859.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3860.             -mieee)             echo -ieee                      ;;

  3861.             -O*|-fast)          echo $flag                      ;;

  3862.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3863.             -g)                 echo -g3                        ;;

  3864.             -Wall)              echo -msg_enable level2         ;;

  3865.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3866.             -Wl,*)              echo $flag                      ;;

  3867.             -f*|-W*)                                            ;;

  3868.             *)                  echo $flag                      ;;

  3869.         esac

  3870.    done

  3871. }

  3872. 

  3873. cparser_flags(){

  3874.     for flag; do

  3875.         case $flag in

  3876.             -Wno-switch)             echo -Wno-switch-enum ;;

  3877.             -Wno-format-zero-length) ;;

  3878.             -Wdisabled-optimization) ;;

  3879.             -Wno-pointer-sign)       echo -Wno-other ;;

  3880.             *)                       echo $flag ;;

  3881.         esac

  3882.     done

  3883. }

  3884. 

  3885. msvc_common_flags(){

  3886.     for flag; do

  3887.         case $flag in

  3888.             # In addition to specifying certain flags under the compiler

  3889.             # specific filters, they must be specified here as well or else the

  3890.             # generic catch all at the bottom will print the original flag.

  3891.             -Wall)                ;;

  3892.             -Wextra)              ;;

  3893.             -std=c99)             ;;

  3894.             # Common flags

  3895.             -fomit-frame-pointer) ;;

  3896.             -g)                   echo -Z7 ;;

  3897.             -fno-math-errno)      ;;

  3898.             -fno-common)          ;;

  3899.             -fno-signed-zeros)    ;;

  3900.             -fPIC)                ;;

  3901.             -mthumb)              ;;

  3902.             -march=*)             ;;

  3903.             -lz)                  echo zlib.lib ;;

  3904.             -lx264)               echo libx264.lib ;;

  3905.             -lstdc++)             ;;

  3906.             -l*)                  echo ${flag#-l}.lib ;;

  3907.             -LARGEADDRESSAWARE)   echo $flag ;;

  3908.             -L*)                  echo -libpath:${flag#-L} ;;

  3909.             *)                    echo $flag ;;

  3910.         esac

  3911.     done

  3912. }

  3913. 

  3914. msvc_flags(){

  3915.     msvc_common_flags "$@"

  3916.     for flag; do

  3917.         case $flag in

  3918.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  3919.                                        -wd4554 ;;

  3920.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3921.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3922.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3923.                                        -wd4307 \

  3924.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  3925.         esac

  3926.     done

  3927. }

  3928. 

  3929. icl_flags(){

  3930.     msvc_common_flags "$@"

  3931.     for flag; do

  3932.         case $flag in

  3933.             # Despite what Intel's documentation says -Wall, which is supported

  3934.             # on Windows, does enable remarks so disable them here.

  3935.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3936.             -std=c99)             echo -Qstd=c99 ;;

  3937.             -flto)                echo -ipo ;;

  3938.         esac

  3939.     done

  3940. }

  3941. 

  3942. icc_flags(){

  3943.     for flag; do

  3944.         case $flag in

  3945.             -flto)                echo -ipo ;;

  3946.             *)                    echo $flag ;;

  3947.         esac

  3948.     done

  3949. }

  3950. 

  3951. pgi_flags(){

  3952.     for flag; do

  3953.         case $flag in

  3954.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3955.             -fomit-frame-pointer) echo -Mnoframe ;;

  3956.             -g)                   echo -gopt ;;

  3957.             *)                    echo $flag ;;

  3958.         esac

  3959.     done

  3960. }

  3961. 

  3962. suncc_flags(){

  3963.     for flag; do

  3964.         case $flag in

  3965.             -march=*|-mcpu=*)

  3966.                 case "${flag#*=}" in

  3967.                     native)                   echo -xtarget=native       ;;

  3968.                     v9|niagara)               echo -xarch=sparc          ;;

  3969.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3970.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3971.                     i586|pentium)             echo -xchip=pentium        ;;

  3972.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3973.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3974.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3975.                     pentium4*)          echo -xtarget=pentium4           ;;

  3976.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3977.                     *-sse3)             echo -xarch=sse3                 ;;

  3978.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3979.                     bonnell)                   echo -xarch=ssse3         ;;

  3980.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3981.                     westmere)                  echo -xtarget=westmere    ;;

  3982.                     silvermont)                echo -xarch=sse4_2        ;;

  3983.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3984.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  3985.                                                echo -xarch=avx           ;;

  3986.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3987.                     btver1)                    echo -xarch=amdsse4a      ;;

  3988.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  3989.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3990.                     k8|opteron|athlon64|athlon-fx)

  3991.                                                echo -xarch=sse2a         ;;

  3992.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3993.                 esac

  3994.                 ;;

  3995.             -std=c99)             echo -xc99              ;;

  3996.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3997.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3998.             -W*,*)                echo $flag              ;;

  3999.             -f*-*|-W*|-mimpure-text)                      ;;

  4000.             -shared)              echo -G                 ;;

  4001.             *)                    echo $flag              ;;

  4002.         esac

  4003.     done

  4004. }

  4005. 

  4006. tms470_flags(){

  4007.     for flag; do

  4008.         case $flag in

  4009.             -march=*|-mcpu=*)

  4010.                 case "${flag#*=}" in

  4011.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  4012.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  4013.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  4014.                     armv6*|arm11*)          echo -mv=6   ;;

  4015.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  4016.                                             echo -mv=5e  ;;

  4017.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  4018.                 esac

  4019.                 ;;

  4020.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  4021.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  4022.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  4023.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  4024.             -msoft-float)   echo --float_support=vfplib       ;;

  4025.             -O[0-3]|-mf=*)  echo $flag                        ;;

  4026.             -g)             echo -g -mn                       ;;

  4027.             -pds=*)         echo $flag                        ;;

  4028.             -D*|-I*)        echo $flag                        ;;

  4029.             --gcc|--abi=*)  echo $flag                        ;;

  4030.             -me)            echo $flag                        ;;

  4031.         esac

  4032.     done

  4033. }

  4034. 

  4035. probe_cc(){

  4036.     pfx=$1

  4037.     _cc=$2

  4038.     first=$3

  4039. 

  4040.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4041.     unset _ld_o _ldflags _ld_lib _ld_path

  4042.     unset _depflags _DEPCMD _DEPFLAGS

  4043.     _flags_filter=echo

  4044. 

  4045.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4046.         true # no-op to avoid reading stdin in following checks

  4047.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4048.         _type=llvm_gcc

  4049.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4050.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4051.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4052.         _cflags_speed='-O3'

  4053.         _cflags_size='-Os'

  4054.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4055.         _type=gcc

  4056.         gcc_version=$($_cc --version | head -n1)

  4057.         gcc_basever=$($_cc -dumpversion)

  4058.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4059.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4060.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4061.         case $gcc_basever in

  4062.             2) ;;

  4063.             2.*) ;;

  4064.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4065.         esac

  4066.         if [ "$first" = true ]; then

  4067.             case $gcc_basever in

  4068.                 4.2*)

  4069.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4070.             esac

  4071.         fi

  4072.         _cflags_speed='-O3'

  4073.         _cflags_size='-Os'

  4074.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4075.         _type=icc

  4076.         _ident=$($_cc --version | head -n1)

  4077.         _depflags='-MMD'

  4078.         _cflags_speed='-O3'

  4079.         _cflags_size='-Os'

  4080.         _cflags_noopt='-O1'

  4081.         _flags_filter=icc_flags

  4082.     elif $_cc -v 2>&1 | grep -q xlc; then

  4083.         _type=xlc

  4084.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4085.         _cflags_speed='-O5'

  4086.         _cflags_size='-O5 -qcompact'

  4087.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  4088.         _type=ccc

  4089.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  4090.         _DEPFLAGS='-M'

  4091.         _cflags_speed='-fast'

  4092.         _cflags_size='-O1'

  4093.         _flags_filter=ccc_flags

  4094.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4095.         test -d "$sysroot" || die "No valid sysroot specified."

  4096.         _type=armcc

  4097.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4098.         armcc_conf="$PWD/armcc.conf"

  4099.         $_cc --arm_linux_configure                 \

  4100.              --arm_linux_config_file="$armcc_conf" \

  4101.              --configure_sysroot="$sysroot"        \

  4102.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4103.              die "Error creating armcc configuration file."

  4104.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4105.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4106.         as_default="${cross_prefix}gcc"

  4107.         _depflags='-MMD'

  4108.         _cflags_speed='-O3'

  4109.         _cflags_size='-Os'

  4110.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  4111.         _type=tms470

  4112.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  4113.         _flags='--gcc --abi=eabi -me'

  4114.         _cc_e='-ppl -fe=$@'

  4115.         _cc_o='-fe=$@'

  4116.         _depflags='-ppa -ppd=$(@:.o=.d)'

  4117.         _cflags_speed='-O3 -mf=5'

  4118.         _cflags_size='-O3 -mf=2'

  4119.         _flags_filter=tms470_flags

  4120.     elif $_cc -v 2>&1 | grep -q clang; then

  4121.         _type=clang

  4122.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4123.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4124.         _cflags_speed='-O3'

  4125.         _cflags_size='-Oz'

  4126.     elif $_cc -V 2>&1 | grep -q Sun; then

  4127.         _type=suncc

  4128.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4129.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4130.         _DEPFLAGS='-xM1 -xc99'

  4131.         _ldflags='-std=c99'

  4132.         _cflags_speed='-O5'

  4133.         _cflags_size='-O5 -xspace'

  4134.         _flags_filter=suncc_flags

  4135.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4136.         _type=pathscale

  4137.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4138.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4139.         _cflags_speed='-O2'

  4140.         _cflags_size='-Os'

  4141.         _flags_filter='filter_out -Wdisabled-optimization'

  4142.     elif $_cc -v 2>&1 | grep -q Open64; then

  4143.         _type=open64

  4144.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4145.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4146.         _cflags_speed='-O2'

  4147.         _cflags_size='-Os'

  4148.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4149.     elif $_cc -V 2>&1 | grep -q Portland; then

  4150.         _type=pgi

  4151.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  4152.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4153.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4154.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4155.         _cflags_noopt="-O"

  4156.         _flags_filter=pgi_flags

  4157.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4158.         _type=armasm

  4159.         _ident=$($_cc | head -n1)

  4160.         # 4509: "This form of conditional instruction is deprecated"

  4161.         _flags="-nologo -ignore 4509"

  4162.         _flags_filter=armasm_flags

  4163.     elif $_cc 2>&1 | grep -q Intel; then

  4164.         _type=icl

  4165.         _ident=$($_cc 2>&1 | head -n1)

  4166.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4167.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4168.         # versions (tested) as well.

  4169.         _cflags_speed="-O2"

  4170.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4171.         if $_cc 2>&1 | grep -q Linker; then

  4172.             _ld_o='-out:$@'

  4173.         else

  4174.             _ld_o='-Fe$@'

  4175.         fi

  4176.         _cc_o='-Fo$@'

  4177.         _cc_e='-P'

  4178.         _flags_filter=icl_flags

  4179.         _ld_lib='lib%.a'

  4180.         _ld_path='-libpath:'

  4181.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4182.         _flags='-nologo -Qdiag-error:4044,10157'

  4183.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4184.         # with MSVC which enables it by default.

  4185.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4186.         disable stripping

  4187.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4188.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4189.         # the -? parameter gives the help output which contains an identifyable

  4190.         # string, while it gives an error in other modes.

  4191.         _type=lld-link

  4192.         # The link.exe mode doesn't have a switch for getting the version,

  4193.         # but we can force it back to gnu mode and get the version from there.

  4194.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4195.         _ld_o='-out:$@'

  4196.         _flags_filter=msvc_flags

  4197.         _ld_lib='lib%.a'

  4198.         _ld_path='-libpath:'

  4199.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4200.         _type=msvc

  4201.         _ident=$($_cc 2>&1 | head -n1)

  4202.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4203.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4204.         _cflags_speed="-O2"

  4205.         _cflags_size="-O1"

  4206.         _cflags_noopt="-O1"

  4207.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4208.             _ld_o='-out:$@'

  4209.         else

  4210.             _ld_o='-Fe$@'

  4211.         fi

  4212.         _cc_o='-Fo$@'

  4213.         _cc_e='-P -Fi$@'

  4214.         _flags_filter=msvc_flags

  4215.         _ld_lib='lib%.a'

  4216.         _ld_path='-libpath:'

  4217.         _flags='-nologo'

  4218.         disable stripping

  4219.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4220.         _type=cparser

  4221.         _ident=$($_cc --version | head -n1)

  4222.         _depflags='-MMD'

  4223.         _cflags_speed='-O4'

  4224.         _cflags_size='-O2'

  4225.         _flags_filter=cparser_flags

  4226.     fi

  4227. 

  4228.     eval ${pfx}_type=\$_type

  4229.     eval ${pfx}_ident=\$_ident

  4230. }

  4231. 

  4232. set_ccvars(){

  4233.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4234.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4235.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4236. 

  4237.     if [ -n "$_depflags" ]; then

  4238.         eval ${1}_DEPFLAGS=\$_depflags

  4239.     else

  4240.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4241.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4242.         eval DEP${1}FLAGS=\$_flags

  4243.     fi

  4244. }

  4245. 

  4246. probe_cc cc "$cc" "true"

  4247. cflags_filter=$_flags_filter

  4248. cflags_speed=$_cflags_speed

  4249. cflags_size=$_cflags_size

  4250. cflags_noopt=$_cflags_noopt

  4251. add_cflags $_flags $_cflags

  4252. cc_ldflags=$_ldflags

  4253. set_ccvars CC

  4254. set_ccvars CXX

  4255. 

  4256. probe_cc hostcc "$host_cc"

  4257. host_cflags_filter=$_flags_filter

  4258. host_cflags_speed=$_cflags_speed

  4259. add_host_cflags  $_flags $_cflags

  4260. set_ccvars HOSTCC

  4261. 

  4262. test -n "$cc_type" && enable $cc_type ||

  4263.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4264. 

  4265. : ${as_default:=$cc}

  4266. : ${objcc_default:=$cc}

  4267. : ${dep_cc_default:=$cc}

  4268. : ${ld_default:=$cc}

  4269. : ${host_ld_default:=$host_cc}

  4270. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4271. 

  4272. probe_cc as "$as"

  4273. asflags_filter=$_flags_filter

  4274. add_asflags $_flags $_cflags

  4275. set_ccvars AS

  4276. 

  4277. probe_cc objcc "$objcc"

  4278. objcflags_filter=$_flags_filter

  4279. add_objcflags $_flags $_cflags

  4280. set_ccvars OBJC

  4281. 

  4282. probe_cc ld "$ld"

  4283. ldflags_filter=$_flags_filter

  4284. add_ldflags $_flags $_ldflags

  4285. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4286. LD_O=${_ld_o-$LD_O}

  4287. LD_LIB=${_ld_lib-$LD_LIB}

  4288. LD_PATH=${_ld_path-$LD_PATH}

  4289. 

  4290. probe_cc hostld "$host_ld"

  4291. host_ldflags_filter=$_flags_filter

  4292. add_host_ldflags $_flags $_ldflags

  4293. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4294. 

  4295. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4296.     probe_cc depcc "$dep_cc"

  4297.     CCDEP=${_DEPCMD:-$DEPCMD}

  4298.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4299.     DEPCCFLAGS=$_flags

  4300. fi

  4301. 

  4302. if $ar 2>&1 | grep -q Microsoft; then

  4303.     arflags="-nologo"

  4304.     ar_o='-out:$@'

  4305. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4306.     arflags="rq"

  4307.     ar_o='$@'

  4308. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4309.     arflags='-Xany -r -c'

  4310.     ar_o='$@'

  4311. elif $ar 2>&1 | grep -q "\[D\] "; then

  4312.     arflags="rcD"

  4313.     ar_o='$@'

  4314. else

  4315.     arflags="rc"

  4316.     ar_o='$@'

  4317. fi

  4318. 

  4319. add_cflags $extra_cflags

  4320. add_cxxflags $extra_cxxflags

  4321. add_objcflags $extra_objcflags

  4322. add_asflags $extra_cflags

  4323. 

  4324. if test -n "$sysroot"; then

  4325.     case "$cc_type" in

  4326.         gcc|llvm_gcc|clang)

  4327.             add_cppflags --sysroot="$sysroot"

  4328.             add_ldflags --sysroot="$sysroot"

  4329. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4330.             add_cppflags -isysroot "$sysroot"

  4331.             add_ldflags -isysroot "$sysroot"

  4332.         ;;

  4333.         tms470)

  4334.             add_cppflags -I"$sysinclude"

  4335.             add_ldflags  --sysroot="$sysroot"

  4336.         ;;

  4337.     esac

  4338. fi

  4339. 

  4340. if test "$cpu" = host; then

  4341.     enabled cross_compile &&

  4342.         die "--cpu=host makes no sense when cross-compiling."

  4343. 

  4344.     case "$cc_type" in

  4345.         gcc|llvm_gcc)

  4346.             check_native(){

  4347.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4348.                 sed -n "/cc1.*$1=/{

  4349.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4350.                             p

  4351.                             q

  4352.                         }" $TMPE

  4353.             }

  4354.             cpu=$(check_native -march || check_native -mcpu)

  4355.         ;;

  4356.         clang)

  4357.             check_native(){

  4358.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4359.                 sed -n "/cc1.*-target-cpu /{

  4360.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4361.                             p

  4362.                             q

  4363.                         }" $TMPE

  4364.             }

  4365.             cpu=$(check_native -march)

  4366.         ;;

  4367.     esac

  4368. 

  4369.     test "${cpu:-host}" = host &&

  4370.         die "--cpu=host not supported with compiler $cc"

  4371. fi

  4372. 

  4373. # Deal with common $arch aliases

  4374. case "$arch" in

  4375.     aarch64|arm64)

  4376.         arch="aarch64"

  4377.     ;;

  4378.     arm*|iPad*|iPhone*)

  4379.         arch="arm"

  4380.     ;;

  4381.     mips*|IP*)

  4382.         case "$arch" in

  4383.         *el)

  4384.             add_cppflags -EL

  4385.             add_ldflags -EL

  4386.         ;;

  4387.         *eb)

  4388.             add_cppflags -EB

  4389.             add_ldflags -EB

  4390.         ;;

  4391.         esac

  4392.         arch="mips"

  4393.     ;;

  4394.     parisc*|hppa*)

  4395.         arch="parisc"

  4396.     ;;

  4397.     "Power Macintosh"|ppc*|powerpc*)

  4398.         arch="ppc"

  4399.     ;;

  4400.     s390|s390x)

  4401.         arch="s390"

  4402.     ;;

  4403.     sh4|sh)

  4404.         arch="sh4"

  4405.     ;;

  4406.     sun4*|sparc*)

  4407.         arch="sparc"

  4408.     ;;

  4409.     tilegx|tile-gx)

  4410.         arch="tilegx"

  4411.     ;;

  4412.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4413.         arch="x86"

  4414.     ;;

  4415. esac

  4416. 

  4417. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4418. enable $arch

  4419. 

  4420. # Add processor-specific flags

  4421. if enabled aarch64; then

  4422. 

  4423.     case $cpu in

  4424.         armv*)

  4425.             cpuflags="-march=$cpu"

  4426.         ;;

  4427.         *)

  4428.             cpuflags="-mcpu=$cpu"

  4429.         ;;

  4430.     esac

  4431. 

  4432. elif enabled alpha; then

  4433. 

  4434.     cpuflags="-mcpu=$cpu"

  4435. 

  4436. elif enabled arm; then

  4437. 

  4438.     check_arm_arch() {

  4439.         check_cpp_condition stddef.h \

  4440.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4441.             $cpuflags

  4442.     }

  4443. 

  4444.     probe_arm_arch() {

  4445.         if   check_arm_arch 4;        then echo armv4

  4446.         elif check_arm_arch 4T;       then echo armv4t

  4447.         elif check_arm_arch 5;        then echo armv5

  4448.         elif check_arm_arch 5E;       then echo armv5e

  4449.         elif check_arm_arch 5T;       then echo armv5t

  4450.         elif check_arm_arch 5TE;      then echo armv5te

  4451.         elif check_arm_arch 5TEJ;     then echo armv5te

  4452.         elif check_arm_arch 6;        then echo armv6

  4453.         elif check_arm_arch 6J;       then echo armv6j

  4454.         elif check_arm_arch 6K;       then echo armv6k

  4455.         elif check_arm_arch 6Z;       then echo armv6z

  4456.         elif check_arm_arch 6ZK;      then echo armv6zk

  4457.         elif check_arm_arch 6T2;      then echo armv6t2

  4458.         elif check_arm_arch 7;        then echo armv7

  4459.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4460.         elif check_arm_arch 7S;       then echo armv7-a

  4461.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4462.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4463.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4464.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4465.         fi

  4466.     }

  4467. 

  4468.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4469. 

  4470.     case $cpu in

  4471.         armv*)

  4472.             cpuflags="-march=$cpu"

  4473.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4474.         ;;

  4475.         *)

  4476.             cpuflags="-mcpu=$cpu"

  4477.             case $cpu in

  4478.                 cortex-a*)                               subarch=armv7a  ;;

  4479.                 cortex-r*)                               subarch=armv7r  ;;

  4480.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4481.                 arm11*)                                  subarch=armv6   ;;

  4482.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4483.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4484.                 *)                             subarch=$(probe_arm_arch) ;;

  4485.             esac

  4486.         ;;

  4487.     esac

  4488. 

  4489.     case "$subarch" in

  4490.         armv5t*)    enable fast_clz                ;;

  4491.         armv[6-8]*)

  4492.             enable fast_clz

  4493.             disabled fast_unaligned || enable fast_unaligned

  4494.             ;;

  4495.     esac

  4496. 

  4497. elif enabled avr32; then

  4498. 

  4499.     case $cpu in

  4500.         ap7[02]0[0-2])

  4501.             subarch="avr32_ap"

  4502.             cpuflags="-mpart=$cpu"

  4503.         ;;

  4504.         ap)

  4505.             subarch="avr32_ap"

  4506.             cpuflags="-march=$cpu"

  4507.         ;;

  4508.         uc3[ab]*)

  4509.             subarch="avr32_uc"

  4510.             cpuflags="-mcpu=$cpu"

  4511.         ;;

  4512.         uc)

  4513.             subarch="avr32_uc"

  4514.             cpuflags="-march=$cpu"

  4515.         ;;

  4516.     esac

  4517. 

  4518. elif enabled bfin; then

  4519. 

  4520.     cpuflags="-mcpu=$cpu"

  4521. 

  4522. elif enabled mips; then

  4523. 

  4524.     cpuflags="-march=$cpu"

  4525. 

  4526.     if [ "$cpu" != "generic" ]; then

  4527.         disable mips32r2

  4528.         disable mips32r5

  4529.         disable mips64r2

  4530.         disable mips32r6

  4531.         disable mips64r6

  4532.         disable loongson2

  4533.         disable loongson3

  4534. 

  4535.         case $cpu in

  4536.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4537.                 enable mips32r2

  4538.                 disable msa

  4539.             ;;

  4540.             p5600|i6400|p6600)

  4541.                 disable mipsdsp

  4542.                 disable mipsdspr2

  4543.             ;;

  4544.             loongson*)

  4545.                 enable loongson2

  4546.                 enable loongson3

  4547.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4548.                 enable simd_align_16

  4549.                 enable fast_64bit

  4550.                 enable fast_clz

  4551.                 enable fast_cmov

  4552.                 enable fast_unaligned

  4553.                 disable aligned_stack

  4554.                 disable mipsfpu

  4555.                 disable mipsdsp

  4556.                 disable mipsdspr2

  4557.                 case $cpu in

  4558.                     loongson3*)

  4559.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4560.                     ;;

  4561.                     loongson2e)

  4562.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4563.                     ;;

  4564.                     loongson2f)

  4565.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4566.                     ;;

  4567.                 esac

  4568.             ;;

  4569.             *)

  4570.                 # Unknown CPU. Disable everything.

  4571.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4572.                 disable mipsfpu

  4573.                 disable mipsdsp

  4574.                 disable mipsdspr2

  4575.                 disable msa

  4576.                 disable mmi

  4577.             ;;

  4578.         esac

  4579. 

  4580.         case $cpu in

  4581.             24kc)

  4582.                 disable mipsfpu

  4583.                 disable mipsdsp

  4584.                 disable mipsdspr2

  4585.             ;;

  4586.             24kf*)

  4587.                 disable mipsdsp

  4588.                 disable mipsdspr2

  4589.             ;;

  4590.             24kec|34kc|1004kc)

  4591.                 disable mipsfpu

  4592.                 disable mipsdspr2

  4593.             ;;

  4594.             24kef*|34kf*|1004kf*)

  4595.                 disable mipsdspr2

  4596.             ;;

  4597.             74kc)

  4598.                 disable mipsfpu

  4599.             ;;

  4600.             p5600)

  4601.                 enable mips32r5

  4602.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4603.             ;;

  4604.             i6400)

  4605.                 enable mips64r6

  4606.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4607.             ;;

  4608.             p6600)

  4609.                 enable mips64r6

  4610.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4611.             ;;

  4612.         esac

  4613.     else

  4614.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4615.         warn 'generic cpu selected'

  4616.     fi

  4617. 

  4618. elif enabled ppc; then

  4619. 

  4620.     disable ldbrx

  4621. 

  4622.     case $(tolower $cpu) in

  4623.         601|ppc601|powerpc601)

  4624.             cpuflags="-mcpu=601"

  4625.             disable altivec

  4626.         ;;

  4627.         603*|ppc603*|powerpc603*)

  4628.             cpuflags="-mcpu=603"

  4629.             disable altivec

  4630.         ;;

  4631.         604*|ppc604*|powerpc604*)

  4632.             cpuflags="-mcpu=604"

  4633.             disable altivec

  4634.         ;;

  4635.         g3|75*|ppc75*|powerpc75*)

  4636.             cpuflags="-mcpu=750"

  4637.             disable altivec

  4638.         ;;

  4639.         g4|745*|ppc745*|powerpc745*)

  4640.             cpuflags="-mcpu=7450"

  4641.             disable vsx

  4642.         ;;

  4643.         74*|ppc74*|powerpc74*)

  4644.             cpuflags="-mcpu=7400"

  4645.             disable vsx

  4646.         ;;

  4647.         g5|970|ppc970|powerpc970)

  4648.             cpuflags="-mcpu=970"

  4649.             disable vsx

  4650.         ;;

  4651.         power[3-6]*)

  4652.             cpuflags="-mcpu=$cpu"

  4653.             disable vsx

  4654.         ;;

  4655.         power[7-8]*)

  4656.             cpuflags="-mcpu=$cpu"

  4657.         ;;

  4658.         cell)

  4659.             cpuflags="-mcpu=cell"

  4660.             enable ldbrx

  4661.             disable vsx

  4662.         ;;

  4663.         e500mc)

  4664.             cpuflags="-mcpu=e500mc"

  4665.             disable altivec

  4666.         ;;

  4667.         e500v2)

  4668.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4669.             disable altivec

  4670.             disable dcbzl

  4671.         ;;

  4672.         e500)

  4673.             cpuflags="-mcpu=8540 -mhard-float"

  4674.             disable altivec

  4675.             disable dcbzl

  4676.         ;;

  4677.     esac

  4678. 

  4679. elif enabled sparc; then

  4680. 

  4681.     case $cpu in

  4682.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4683.             cpuflags="-mcpu=$cpu"

  4684.         ;;

  4685.         ultrasparc*|niagara[234])

  4686.             cpuflags="-mcpu=$cpu"

  4687.         ;;

  4688.     esac

  4689. 

  4690. elif enabled x86; then

  4691. 

  4692.     case $cpu in

  4693.         i[345]86|pentium)

  4694.             cpuflags="-march=$cpu"

  4695.             disable i686

  4696.             disable mmx

  4697.         ;;

  4698.         # targets that do NOT support nopl and conditional mov (cmov)

  4699.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4700.             cpuflags="-march=$cpu"

  4701.             disable i686

  4702.         ;;

  4703.         # targets that do support nopl and conditional mov (cmov)

  4704.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4705.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4706.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4707.             cpuflags="-march=$cpu"

  4708.             enable i686

  4709.             enable fast_cmov

  4710.         ;;

  4711.         # targets that do support conditional mov but on which it's slow

  4712.         pentium4|pentium4m|prescott|nocona)

  4713.             cpuflags="-march=$cpu"

  4714.             enable i686

  4715.             disable fast_cmov

  4716.         ;;

  4717.     esac

  4718. 

  4719. fi

  4720. 

  4721. if [ "$cpu" != generic ]; then

  4722.     add_cflags  $cpuflags

  4723.     add_asflags $cpuflags

  4724.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4725. fi

  4726. 

  4727. # compiler sanity check

  4728. check_exec <<EOF

  4729. int main(void){ return 0; }

  4730. EOF

  4731. if test "$?" != 0; then

  4732.     echo "$cc is unable to create an executable file."

  4733.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4734.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4735.         echo "Only do this if you know what cross compiling means."

  4736.     fi

  4737.     die "C compiler test failed."

  4738. fi

  4739. 

  4740. add_cppflags -D_ISOC99_SOURCE

  4741. add_cxxflags -D__STDC_CONSTANT_MACROS

  4742. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4743. 

  4744. # some compilers silently accept -std=c11, so we also need to check that the

  4745. # version macro is defined properly

  4746. if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then

  4747.     add_cflags -std=c11

  4748. else

  4749.     check_cflags -std=c99

  4750. fi

  4751. 

  4752. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4753. #include <stdlib.h>

  4754. EOF

  4755. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4756. #include <stdlib.h>

  4757. EOF

  4758. 

  4759. add_host_cppflags -D_ISOC99_SOURCE

  4760. check_host_cflags -std=c99

  4761. check_host_cflags -Wall

  4762. check_host_cflags $host_cflags_speed

  4763. 

  4764. check_64bit(){

  4765.     arch32=$1

  4766.     arch64=$2

  4767.     expr=$3

  4768.     check_code cc "" "int test[2*($expr) - 1]" &&

  4769.         subarch=$arch64 || subarch=$arch32

  4770. }

  4771. 

  4772. case "$arch" in

  4773.     aarch64|alpha|ia64)

  4774.         spic=$shared

  4775.     ;;

  4776.     mips)

  4777.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4778.         spic=$shared

  4779.     ;;

  4780.     parisc)

  4781.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4782.         spic=$shared

  4783.     ;;

  4784.     ppc)

  4785.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4786.         spic=$shared

  4787.     ;;

  4788.     s390)

  4789.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4790.         spic=$shared

  4791.     ;;

  4792.     sparc)

  4793.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4794.         spic=$shared

  4795.     ;;

  4796.     x86)

  4797.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4798.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4799.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4800.             subarch=x86_64

  4801.         if test "$subarch" = "x86_64"; then

  4802.             spic=$shared

  4803.         fi

  4804.     ;;

  4805.     ppc)

  4806.         check_cc <<EOF && subarch="ppc64"

  4807.         int test[(int)sizeof(char*) - 7];

  4808. EOF

  4809.     ;;

  4810. esac

  4811. 

  4812. enable $subarch

  4813. enabled spic && enable_weak pic

  4814. 

  4815. enabled x86_64 && objformat=elf64 || objformat="elf32"

  4816. 

  4817. # OS specific

  4818. case $target_os in

  4819.     aix)

  4820.         SHFLAGS=-shared

  4821.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4822.         enabled shared && add_ldflags -Wl,-brtl

  4823.         ;;

  4824.     android)

  4825.         disable symver

  4826.         enable section_data_rel_ro

  4827.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4828.         SLIB_INSTALL_LINKS=

  4829.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4830.         ;;

  4831.     haiku)

  4832.         prefix_default="/boot/common"

  4833.         network_extralibs="-lnetwork"

  4834.         host_extralibs=

  4835.         ;;

  4836.     sunos)

  4837.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4838.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4839.         network_extralibs="-lsocket -lnsl"

  4840.         add_cppflags -D__EXTENSIONS__

  4841.         # When using suncc to build, the Solaris linker will mark

  4842.         # an executable with each instruction set encountered by

  4843.         # the Solaris assembler.  As our libraries contain their own

  4844.         # guards for processor-specific code, instead suppress

  4845.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4846.         enabled_all suncc x86 &&

  4847.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4848.             add_ldflags -Wl,-M,mapfile

  4849.         nm_default='nm -P -g'

  4850.         version_script='-M'

  4851.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4852.         ;;

  4853.     netbsd)

  4854.         disable symver

  4855.         oss_indev_extralibs="-lossaudio"

  4856.         oss_outdev_extralibs="-lossaudio"

  4857.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4858.         ;;

  4859.     openbsd|bitrig)

  4860.         disable symver

  4861.         SHFLAGS='-shared'

  4862.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4863.         SLIB_INSTALL_LINKS=

  4864.         oss_indev_extralibs="-lossaudio"

  4865.         oss_outdev_extralibs="-lossaudio"

  4866.         ;;

  4867.     dragonfly)

  4868.         disable symver

  4869.         ;;

  4870.     freebsd)

  4871.         ;;

  4872.     bsd/os)

  4873.         add_extralibs -lpoll -lgnugetopt

  4874.         strip="strip -d"

  4875.         ;;

  4876.     darwin)

  4877.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4878.         install_name_dir_default='$(SHLIBDIR)'

  4879.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4880.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4881.         strip="${strip} -x"

  4882.         add_ldflags -Wl,-dynamic,-search_paths_first

  4883.         SLIBSUF=".dylib"

  4884.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4885.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4886.         objformat="macho"

  4887.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4888.         enabled_any pic shared x86_64 ||

  4889.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4890.         check_header dispatch/dispatch.h &&

  4891.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4892.         version_script='-exported_symbols_list'

  4893.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4894.         ;;

  4895.     msys*)

  4896.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4897.         ;;

  4898.     mingw32*|mingw64*)

  4899.         if test $target_os = "mingw32ce"; then

  4900.             disable network

  4901.         else

  4902.             target_os=mingw32

  4903.         fi

  4904.         LIBTARGET=i386

  4905.         if enabled x86_64; then

  4906.             LIBTARGET="i386:x86-64"

  4907.         elif enabled arm; then

  4908.             LIBTARGET=arm-wince

  4909.         fi

  4910.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4911.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4912.         shlibdir_default="$bindir_default"

  4913.         SLIBPREF=""

  4914.         SLIBSUF=".dll"

  4915.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4916.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4917.         dlltool="${cross_prefix}dlltool"

  4918.         if check_cmd lib.exe -list; then

  4919.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4920.             if enabled x86_64; then

  4921.                 LIBTARGET=x64

  4922.             fi

  4923.         elif check_cmd $dlltool --version; then

  4924.             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)'

  4925.         fi

  4926.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4927.         SLIB_INSTALL_LINKS=

  4928.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4929.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4930.         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'

  4931.         enabled x86_64 && objformat="win64" || objformat="win32"

  4932.         ranlib=:

  4933.         enable dos_paths

  4934.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4935.         # Lets work around some stupidity in binutils.

  4936.         # ld will strip relocations from executables even though we need them

  4937.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4938.         # however ld then forgets what the entry point should be (oops) so we

  4939.         # have to manually (re)set it.

  4940.         if enabled x86_32; then

  4941.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4942.         elif enabled x86_64; then

  4943.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4944.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4945.             # Set image base >4GB for extra entropy with HEASLR

  4946.             add_ldexeflags -Wl,--image-base,0x140000000

  4947.             append SHFLAGS -Wl,--image-base,0x180000000

  4948.         fi

  4949.         ;;

  4950.     win32|win64)

  4951.         disable symver

  4952.         if enabled shared; then

  4953.             # Link to the import library instead of the normal static library

  4954.             # for shared libs.

  4955.             LD_LIB='%.lib'

  4956.             # Cannot build both shared and static libs with MSVC or icl.

  4957.             disable static

  4958.         fi

  4959.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4960.         shlibdir_default="$bindir_default"

  4961.         SLIBPREF=""

  4962.         SLIBSUF=".dll"

  4963.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4964.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4965.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4966.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4967.         SLIB_INSTALL_LINKS=

  4968.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4969.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4970.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4971.         enabled x86_64 && objformat="win64" || objformat="win32"

  4972.         ranlib=:

  4973.         enable dos_paths

  4974.         ;;

  4975.     cygwin*)

  4976.         target_os=cygwin

  4977.         shlibdir_default="$bindir_default"

  4978.         SLIBPREF="cyg"

  4979.         SLIBSUF=".dll"

  4980.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4981.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4982.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4983.         SLIB_INSTALL_LINKS=

  4984.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4985.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4986.         enabled x86_64 && objformat="win64" || objformat="win32"

  4987.         enable dos_paths

  4988.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4989.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4990.         ;;

  4991.     *-dos|freedos|opendos)

  4992.         network_extralibs="-lsocket"

  4993.         objformat="coff"

  4994.         enable dos_paths

  4995.         add_cppflags -U__STRICT_ANSI__

  4996.         ;;

  4997.     linux)

  4998.         enable dv1394

  4999.         enable section_data_rel_ro

  5000.         ;;

  5001.     irix*)

  5002.         target_os=irix

  5003.         ranlib="echo ignoring ranlib"

  5004.         ;;

  5005.     os/2*)

  5006.         strip="lxlite -CS"

  5007.         objformat="aout"

  5008.         add_cppflags -D_GNU_SOURCE

  5009.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5010.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5011.         LIBSUF="_s.a"

  5012.         SLIBPREF=""

  5013.         SLIBSUF=".dll"

  5014.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5015.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5016.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5017.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5018.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5019.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5020.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5021.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5022.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5023.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5024.         SLIB_INSTALL_LINKS=

  5025.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5026.         enable dos_paths

  5027.         enable_weak os2threads

  5028.         ;;

  5029.     gnu/kfreebsd)

  5030.         add_cppflags -D_BSD_SOURCE

  5031.         ;;

  5032.     gnu)

  5033.         ;;

  5034.     qnx)

  5035.         add_cppflags -D_QNX_SOURCE

  5036.         network_extralibs="-lsocket"

  5037.         ;;

  5038.     symbian)

  5039.         SLIBSUF=".dll"

  5040.         enable dos_paths

  5041.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5042.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5043.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5044.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5045.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5046.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5047.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5048.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5049.         ;;

  5050.     osf1)

  5051.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  5052.         ;;

  5053.     minix)

  5054.         ;;

  5055.     none)

  5056.         ;;

  5057.     *)

  5058.         die "Unknown OS '$target_os'."

  5059.         ;;

  5060. esac

  5061. 

  5062. # test if creating links works

  5063. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5064. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5065. mkdir "$link_dest"

  5066. $ln_s "$link_dest" "$link_name"

  5067. touch "$link_dest/test_file"

  5068. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5069.     # create link to source path

  5070.     [ -e src ] && rm src

  5071.     $ln_s "$source_path" src

  5072.     source_link=src

  5073. else

  5074.     # creating directory links doesn't work

  5075.     # fall back to using the full source path

  5076.     source_link="$source_path"

  5077. fi

  5078. # cleanup

  5079. rm -r "$link_dest"

  5080. rm -r "$link_name"

  5081. 

  5082. # determine libc flavour

  5083. 

  5084. probe_libc(){

  5085.     pfx=$1

  5086.     pfx_no_=${pfx%_}

  5087.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5088.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5089.         eval ${pfx}libc_type=uclibc

  5090.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5091.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5092.         eval ${pfx}libc_type=glibc

  5093.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5094.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5095.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5096.         eval ${pfx}libc_type=newlib

  5097.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5098.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5099.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5100.         eval ${pfx}libc_type=mingw64

  5101.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5102.             add_compat msvcrt/snprintf.o

  5103.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5104.         fi

  5105.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5106.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5107.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5108.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5109.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5110.         eval ${pfx}libc_type=mingw32

  5111.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5112.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5113.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5114.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5115.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  5116.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5117.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5118.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5119.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5120.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5121.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5122.         eval ${pfx}libc_type=msvcrt

  5123.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5124.             if [ "$pfx" = host_ ]; then

  5125.                 add_host_cppflags -Dsnprintf=_snprintf

  5126.             else

  5127.                 add_compat strtod.o strtod=avpriv_strtod

  5128.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5129.                                              _snprintf=avpriv_snprintf  \

  5130.                                              vsnprintf=avpriv_vsnprintf

  5131.             fi

  5132.         fi

  5133.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5134.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5135.         # 0x601 by default unless something else is set by the user.

  5136.         # This can easily lead to us detecting functions only present

  5137.         # in such new versions and producing binaries requiring windows 7.0.

  5138.         # Therefore explicitly set the default to XP unless the user has

  5139.         # set something else on the command line.

  5140.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5141.         # family. For these cases, configure is free to use any functions

  5142.         # found in the SDK headers by default. (Alternatively, we could force

  5143.         # _WIN32_WINNT to 0x0602 in that case.)

  5144.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5145.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5146. #ifdef WINAPI_FAMILY

  5147. #include <winapifamily.h>

  5148. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5149. #error not desktop

  5150. #endif

  5151. #endif

  5152. EOF

  5153.         if [ "$pfx" = "" ]; then

  5154.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5155.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5156.         fi

  5157.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5158.         eval ${pfx}libc_type=klibc

  5159.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5160.         eval ${pfx}libc_type=bionic

  5161.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5162.         eval ${pfx}libc_type=solaris

  5163.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5164.     fi

  5165.     check_${pfx}cc <<EOF

  5166. #include <time.h>

  5167. void *v = localtime_r;

  5168. EOF

  5169. 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

  5170. #include <time.h>

  5171. void *v = localtime_r;

  5172. EOF

  5173. 

  5174. }

  5175. 

  5176. probe_libc

  5177. test -n "$libc_type" && enable libc_$libc_type

  5178. probe_libc host_

  5179. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5180. 

  5181. case $libc_type in

  5182.     bionic)

  5183.         add_compat strtod.o strtod=avpriv_strtod

  5184.         ;;

  5185. esac

  5186. 

  5187. # hacks for compiler/libc/os combinations

  5188. 

  5189. if enabled_all tms470 libc_glibc; then

  5190.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5191.     add_cppflags -D__USER_LABEL_PREFIX__=

  5192.     add_cppflags -D__builtin_memset=memset

  5193.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5194.     add_cflags   -pds=48    # incompatible redefinition of macro

  5195. fi

  5196. 

  5197. if enabled_all ccc libc_glibc; then

  5198.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  5199. fi

  5200. 

  5201. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5202.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5203. 

  5204. esc(){

  5205.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5206. }

  5207. 

  5208. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  5209. 

  5210. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5211. 

  5212. set_default libdir

  5213. : ${shlibdir_default:="$libdir"}

  5214. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5215. 

  5216. set_default $PATHS_LIST

  5217. set_default nm

  5218. 

  5219. # we need to build at least one lib type

  5220. if ! enabled_any static shared; then

  5221.     cat <<EOF

  5222. At least one library type must be built.

  5223. Specify --enable-static to build the static libraries or --enable-shared to

  5224. build the shared libraries as well. To only build the shared libraries specify

  5225. --disable-static in addition to --enable-shared.

  5226. EOF

  5227.     exit 1

  5228. fi

  5229. 

  5230. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5231. 

  5232. enable_weak_pic() {

  5233.     disabled pic && return

  5234.     enable pic

  5235.     add_cppflags -DPIC

  5236.     case "$target_os" in

  5237.     mingw*|cygwin*)

  5238.         ;;

  5239.     *)

  5240.         add_cflags -fPIC

  5241.         ;;

  5242.     esac

  5243.     add_asflags  -fPIC

  5244. }

  5245. 

  5246. enabled pic && enable_weak_pic

  5247. 

  5248. check_cc <<EOF || die "Symbol mangling check failed."

  5249. int ff_extern;

  5250. EOF

  5251. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5252. extern_prefix=${sym%%ff_extern*}

  5253. 

  5254. check_cc <<EOF && enable_weak inline_asm

  5255. void foo(void) { __asm__ volatile ("" ::); }

  5256. EOF

  5257. 

  5258. _restrict=

  5259. for restrict_keyword in restrict __restrict__ __restrict; do

  5260.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5261. void foo(char * $restrict_keyword p);

  5262. EOF

  5263. done

  5264. 

  5265. check_cc <<EOF && enable pragma_deprecated

  5266. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5267. EOF

  5268. 

  5269. check_cc <<EOF && enable attribute_packed

  5270. struct { int x; } __attribute__((packed)) x;

  5271. EOF

  5272. 

  5273. check_cc <<EOF && enable attribute_may_alias

  5274. union { int x; } __attribute__((may_alias)) x;

  5275. EOF

  5276. 

  5277. check_cc <<EOF || die "endian test failed"

  5278. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5279. EOF

  5280. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5281. 

  5282. if ! enabled ppc64 || enabled bigendian; then

  5283.     disable vsx

  5284. fi

  5285. 

  5286. check_gas() {

  5287.     log "check_gas using '$as' as AS"

  5288.     # :vararg is used on aarch64, arm and ppc altivec

  5289.     check_as <<EOF || return 1

  5290. .macro m n, y:vararg=0

  5291. \n: .int \y

  5292. .endm

  5293. m x

  5294. EOF

  5295.     # .altmacro is only used in arm asm

  5296.     ! enabled arm || check_as <<EOF || return 1

  5297. .altmacro

  5298. EOF

  5299.     enable gnu_as

  5300.     return 0

  5301. }

  5302. 

  5303. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5304.     nogas=:

  5305.     enabled_any arm aarch64 && nogas=die

  5306.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5307.     as_noop=-v

  5308. 

  5309.     case $as_type in

  5310.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5311.         gcc)  gaspp_as_type=gas ;;

  5312.         *)    gaspp_as_type=$as_type ;;

  5313.     esac

  5314. 

  5315.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5316. 

  5317.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5318.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5319.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5320. 

  5321.     if ! check_gas ; then

  5322.         as=${gas:=$as}

  5323.         check_gas || \

  5324.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5325.     fi

  5326. 

  5327.     check_as <<EOF && enable as_func

  5328. .func test

  5329. .endfunc

  5330. EOF

  5331. fi

  5332. 

  5333. check_inline_asm inline_asm_labels '"1:\n"'

  5334. 

  5335. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5336. 

  5337. if enabled aarch64; then

  5338.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5339.     # internal assembler in clang 3.3 does not support this instruction

  5340.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5341.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5342. 

  5343.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5344. 

  5345. elif enabled alpha; then

  5346. 

  5347.     check_cflags -mieee

  5348. 

  5349. elif enabled arm; then

  5350. 

  5351.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5352. 

  5353.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5354. float func(float a, float b){ return a+b; }

  5355. EOF

  5356. 

  5357.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5358. 

  5359.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5360.         enable vfp_args

  5361.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5362.         enable vfp_args

  5363.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5364.         case "${cross_prefix:-$cc}" in

  5365.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5366.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5367. __asm__ (".eabi_attribute 28, 1");

  5368. int main(void) { return 0; }

  5369. EOF

  5370.         esac

  5371.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5372.     fi

  5373. 

  5374.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5375.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5376.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5377.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5378.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5379.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5380.     enabled setend  && check_insn setend  'setend be'

  5381. 

  5382.     [ $target_os = linux ] || [ $target_os = android ] ||

  5383.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5384.             $ARCH_EXT_LIST_ARM

  5385. 

  5386.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5387. 

  5388.     check_as <<EOF && enable as_dn_directive

  5389. ra .dn d0.i16

  5390. .unreq ra

  5391. EOF

  5392.     check_as <<EOF && enable as_fpu_directive

  5393. .fpu neon

  5394. EOF

  5395. 

  5396.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5397.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5398.         check_as <<EOF && enable as_object_arch

  5399. .object_arch armv4

  5400. EOF

  5401. 

  5402.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5403. 

  5404. elif enabled mips; then

  5405. 

  5406.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5407.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5408.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5409. 

  5410.     # Enable minimum ISA based on selected options

  5411.     if enabled mips64; then

  5412.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5413.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5414.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5415.     else

  5416.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5417.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5418.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5419.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5420.     fi

  5421. 

  5422.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5423.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5424.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5425.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5426.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5427. 

  5428.     if enabled bigendian && enabled msa; then

  5429.         disable msa

  5430.     fi

  5431. 

  5432. elif enabled parisc; then

  5433. 

  5434.     if enabled gcc; then

  5435.         case $($cc -dumpversion) in

  5436.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5437.         esac

  5438.     fi

  5439. 

  5440. elif enabled ppc; then

  5441. 

  5442.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5443. 

  5444.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5445.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5446.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5447.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5448. 

  5449.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5450.     if enabled altivec; then

  5451.         check_cflags -maltivec -mabi=altivec &&

  5452.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5453.         check_cflags -faltivec

  5454. 

  5455.         # check if our compiler supports Motorola AltiVec C API

  5456.         check_cc <<EOF || disable altivec

  5457. $inc_altivec_h

  5458. int main(void) {

  5459.     vector signed int v1 = (vector signed int) { 0 };

  5460.     vector signed int v2 = (vector signed int) { 1 };

  5461.     v1 = vec_add(v1, v2);

  5462.     return 0;

  5463. }

  5464. EOF

  5465. 

  5466.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5467.     fi

  5468. 

  5469.     if enabled vsx; then

  5470.         check_cflags -mvsx &&

  5471.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5472.     fi

  5473. 

  5474.     if enabled power8; then

  5475.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5476.     fi

  5477. 

  5478. elif enabled x86; then

  5479. 

  5480.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5481.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5482. 

  5483.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5484. 

  5485.     # check whether EBP is available on x86

  5486.     # As 'i' is stored on the stack, this program will crash

  5487.     # if the base pointer is used to access it because the

  5488.     # base pointer is cleared in the inline assembly code.

  5489.     check_exec_crash <<EOF && enable ebp_available

  5490. volatile int i=0;

  5491. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5492. return i;

  5493. EOF

  5494. 

  5495.     # check whether EBX is available on x86

  5496.     check_inline_asm ebx_available '""::"b"(0)' &&

  5497.         check_inline_asm ebx_available '"":::"%ebx"'

  5498. 

  5499.     # check whether xmm clobbers are supported

  5500.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5501. 

  5502.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5503.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5504. 

  5505.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5506.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5507.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5508. 

  5509.     probe_x86asm(){

  5510.         x86asmexe_probe=$1

  5511.         if check_cmd $x86asmexe_probe -v; then

  5512.             x86asmexe=$x86asmexe_probe

  5513.             x86asm_type=nasm

  5514.             x86asm_debug="-g -F dwarf"

  5515.         elif check_cmd $x86asmexe_probe --version; then

  5516.             x86asmexe=$x86asmexe_probe

  5517.             x86asm_type=yasm

  5518.             x86asm_debug="-g dwarf2"

  5519.         fi

  5520.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5521.     }

  5522. 

  5523.     if ! disabled_any asm mmx x86asm; then

  5524.         disable x86asm

  5525.         for program in $x86asmexe nasm yasm; do

  5526.             probe_x86asm $program && break

  5527.         done

  5528.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5529.         test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5530.         test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5531.         X86ASMFLAGS="-f $objformat"

  5532.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5533.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5534.         case "$objformat" in

  5535.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5536.         esac

  5537. 

  5538.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5539.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5540.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5541.         check_x86asm "CPU amdnop" || disable cpunop

  5542.     fi

  5543. 

  5544.     case "$cpu" in

  5545.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5546.             disable fast_clz

  5547.         ;;

  5548.     esac

  5549. 

  5550. fi

  5551. 

  5552. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5553. 

  5554. check_ldflags -Wl,--as-needed

  5555. check_ldflags -Wl,-z,noexecstack

  5556. 

  5557. if check_func dlopen && check_func dlsym; then

  5558.     ldl=

  5559. elif check_func dlopen -ldl && check_func dlsym -ldl; then

  5560.     ldl=-ldl

  5561. fi

  5562. 

  5563. avisynth_demuxer_extralibs='$ldl'

  5564. cuda_extralibs='$ldl'

  5565. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5566. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5567. frei0r_filter_extralibs='$ldl'

  5568. frei0r_src_filter_extralibs='$ldl'

  5569. ladspa_filter_extralibs='$ldl'

  5570. nvenc_extralibs='$ldl'

  5571. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5572. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5573. 

  5574. if ! disabled network; then

  5575.     check_func getaddrinfo $network_extralibs

  5576.     check_func inet_aton $network_extralibs

  5577. 

  5578.     check_type netdb.h "struct addrinfo"

  5579.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5580.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5581.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5582.     check_type poll.h "struct pollfd"

  5583.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5584.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5585.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5586.     check_type netinet/in.h "struct sockaddr_in6"

  5587.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5588.     check_type "sys/types.h sys/socket.h" socklen_t

  5589. 

  5590.     # Prefer arpa/inet.h over winsock2

  5591.     if check_header arpa/inet.h ; then

  5592.         check_func closesocket

  5593.     elif check_header winsock2.h ; then

  5594.         check_func_headers winsock2.h closesocket -lws2 &&

  5595.             network_extralibs="-lws2" ||

  5596.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5597.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5598.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5599. 

  5600.         check_type ws2tcpip.h socklen_t

  5601.         check_type ws2tcpip.h "struct addrinfo"

  5602.         check_type ws2tcpip.h "struct group_source_req"

  5603.         check_type ws2tcpip.h "struct ip_mreq_source"

  5604.         check_type ws2tcpip.h "struct ipv6_mreq"

  5605.         check_type winsock2.h "struct pollfd"

  5606.         check_struct winsock2.h "struct sockaddr" sa_len

  5607.         check_type ws2tcpip.h "struct sockaddr_in6"

  5608.         check_type ws2tcpip.h "struct sockaddr_storage"

  5609.     else

  5610.         disable network

  5611.     fi

  5612. fi

  5613. 

  5614. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5615. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5616. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5617. check_builtin sarestart signal.h "SA_RESTART"

  5618. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5619. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5620. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5621. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5622. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5623. 

  5624. case "$custom_allocator" in

  5625.     jemalloc)

  5626.         # jemalloc by default does not use a prefix

  5627.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5628.     ;;

  5629.     tcmalloc)

  5630.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5631.         malloc_prefix=tc_

  5632.     ;;

  5633. esac

  5634. 

  5635. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5636. check_func  ${malloc_prefix}memalign            && enable memalign

  5637. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5638. 

  5639. check_func  access

  5640. check_func_headers stdlib.h arc4random

  5641. check_func_headers time.h clock_gettime ||

  5642.     { check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }

  5643. check_func  fcntl

  5644. check_func  fork

  5645. check_func  gethrtime

  5646. check_func  getopt

  5647. check_func  getrusage

  5648. check_func  gettimeofday

  5649. check_func  isatty

  5650. check_func  mach_absolute_time

  5651. check_func  mkstemp

  5652. check_func  mmap

  5653. check_func  mprotect

  5654. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5655. check_func_headers time.h nanosleep ||

  5656.     { check_lib nanosleep time.h nanosleep -lrt && LIBRT="-lrt"; }

  5657. check_func  sched_getaffinity

  5658. check_func  setrlimit

  5659. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5660. check_func  strerror_r

  5661. check_func  sysconf

  5662. check_func  sysctl

  5663. check_func  usleep

  5664. 

  5665. check_func_headers conio.h kbhit

  5666. check_func_headers io.h setmode

  5667. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5668. check_func_headers stdlib.h getenv

  5669. check_func_headers sys/stat.h lstat

  5670. 

  5671. check_func_headers windows.h GetProcessAffinityMask

  5672. check_func_headers windows.h GetProcessTimes

  5673. check_func_headers windows.h GetSystemTimeAsFileTime

  5674. check_func_headers windows.h LoadLibrary

  5675. check_func_headers windows.h MapViewOfFile

  5676. check_func_headers windows.h PeekNamedPipe

  5677. check_func_headers windows.h SetConsoleTextAttribute

  5678. check_func_headers windows.h SetConsoleCtrlHandler

  5679. check_func_headers windows.h Sleep

  5680. check_func_headers windows.h VirtualAlloc

  5681. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5682. check_func_headers glob.h glob

  5683. enabled xlib &&

  5684.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5685. 

  5686. check_header AudioToolbox/AudioToolbox.h

  5687. check_header d3d11.h

  5688. check_header direct.h

  5689. check_header dirent.h

  5690. check_header dlfcn.h

  5691. check_header dxgidebug.h

  5692. check_header dxva.h

  5693. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5694. check_header io.h

  5695. check_header libcrystalhd/libcrystalhd_if.h

  5696. check_header mach/mach_time.h

  5697. check_header malloc.h

  5698. check_header net/udplite.h

  5699. check_header poll.h

  5700. check_header sys/mman.h

  5701. check_header sys/param.h

  5702. check_header sys/resource.h

  5703. check_header sys/select.h

  5704. check_header sys/time.h

  5705. check_header sys/un.h

  5706. check_header termios.h

  5707. check_header unistd.h

  5708. check_header valgrind/valgrind.h

  5709. check_header VideoDecodeAcceleration/VDADecoder.h

  5710. check_header VideoToolbox/VideoToolbox.h

  5711. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5712. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5713. check_header windows.h

  5714. check_header X11/extensions/XvMClib.h

  5715. check_header asm/types.h

  5716. 

  5717. # it seems there are versions of clang in some distros that try to use the

  5718. # gcc headers, which explodes for stdatomic

  5719. # so we also check that atomics actually work here

  5720. check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5721. 

  5722. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5723. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5724. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5725. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5726. 

  5727. check_lib coreservices "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5728. 

  5729. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5730. 

  5731. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5732. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5733. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5734. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5735. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5736. 

  5737. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5738. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5739. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5740. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5741. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5742. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5743. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5744. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5745. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5746. 

  5747. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5748. 

  5749. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5750. 

  5751. if ! disabled w32threads && ! enabled pthreads; then

  5752.     check_func_headers "windows.h process.h" _beginthreadex &&

  5753.         enable w32threads || disable w32threads

  5754.     if ! enabled w32threads && enabled winrt; then

  5755.         check_func_headers "windows.h" CreateThread &&

  5756.             enable w32threads || disable w32threads

  5757.     fi

  5758. fi

  5759. 

  5760. # check for some common methods of building with pthread support

  5761. # do this before the optional library checks as some of them require pthreads

  5762. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5763.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5764.        check_lib pthreads pthread.h pthread_create -pthread; then

  5765.         add_cflags -pthread

  5766.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5767.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5768.         add_cflags -pthreads

  5769.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5770.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5771.         add_cflags -ldl -pthread

  5772.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5773.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5774.         :

  5775.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5776.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5777.         :

  5778.     elif check_func pthread_join && check_func pthread_create; then

  5779.         enable pthreads

  5780.     fi

  5781.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5782. fi

  5783. 

  5784. 

  5785. if enabled pthreads; then

  5786.   check_func pthread_cancel

  5787. fi

  5788. 

  5789. enabled pthreads &&

  5790.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

  5791. 

  5792. disabled  zlib || check_lib zlib   zlib.h      zlibVersion    -lz

  5793. disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5794. disabled  lzma || check_lib lzma   lzma.h lzma_version_number -llzma

  5795. 

  5796. check_lib libm math.h sin -lm && LIBM="-lm"

  5797. disabled crystalhd || check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  5798. 

  5799. atan2f_args=2

  5800. copysign_args=2

  5801. hypot_args=2

  5802. ldexpf_args=2

  5803. powf_args=2

  5804. 

  5805. for func in $MATH_FUNCS; do

  5806.     eval check_mathfunc $func \${${func}_args:-1} $LIBM

  5807. done

  5808. 

  5809. for func in $COMPLEX_FUNCS; do

  5810.     eval check_complexfunc $func \${${func}_args:-1}

  5811. done

  5812. 

  5813. # these are off by default, so fail if requested and not available

  5814. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5815. enabled avfoundation_indev && { check_lib avfoundation_indev CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5816.                                 check_lib avfoundation_indev ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5817. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5818. enabled cuvid             && { enabled cuda ||

  5819.                                die "ERROR: CUVID requires CUDA"; }

  5820. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5821. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5822. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5823. enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&

  5824.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5825. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5826. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5827. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5828. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5829. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5830. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5831. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5832. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5833. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5834. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5835.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5836.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5837. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5838. enabled libdc1394         && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new

  5839. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5840.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5841.                                  warn "using libfdk without pkg-config"; } }

  5842. 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"

  5843. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5844. enabled fontconfig        && enable libfontconfig

  5845. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5846. enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5847. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5848. enabled libgme            && { use_pkg_config libgme gme/gme.h gme_new_emu ||

  5849.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5850. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5851.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5852.                                done || die "ERROR: libgsm not found"; }

  5853. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5854. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5855. # While it may appear that require is being used as a pkg-config

  5856. # fallback for libmfx, it is actually being used to detect a different

  5857. # installation route altogether.  If libmfx is installed via the Intel

  5858. # Media SDK or Intel Media Server Studio, these don't come with

  5859. # pkg-config support.  Instead, users should make sure that the build

  5860. # can find the libraries and headers through other means.

  5861. enabled libmfx            && { use_pkg_config libmfx "mfx/mfxvideo.h" MFXInit ||

  5862.                                { require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }

  5863. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5864. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5865. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa

  5866. enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc

  5867. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5868. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5869. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5870.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5871.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5872.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5873. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5874. enabled libopenjpeg       && { { check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5875.                                check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 ||

  5876.                                { check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5877.                                check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||

  5878.                                { check_lib libopenjpeg openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5879.                                { check_lib libopenjpeg openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5880.                                { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5881.                                die "ERROR: libopenjpeg not found"; }

  5882. enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create

  5883. enabled libopus           && {

  5884.     enabled libopus_decoder && {

  5885.         require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5886.     }

  5887.     enabled libopus_encoder && {

  5888.         require_pkg_config opus opus_multistream.h opus_multistream_surround_encoder_create

  5889.     }

  5890. }

  5891. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5892. enabled librsvg           && require_pkg_config librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5893. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5894. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5895. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5896. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5897.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5898. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy

  5899. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5900. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5901. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5902. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5903. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5904. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5905.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5906.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5907. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5908. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5909. enabled libvmaf           && { check_lib libvmaf "libvmaf.h" "compute_vmaf" -lvmaf -lstdc++ -lpthread -lm ||

  5910.                                die "ERROR: libvmaf must be installed"; }

  5911. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5912. enabled libvorbis         && require_pkg_config vorbis vorbis/codec.h vorbis_info_init &&

  5913.                              require_pkg_config vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  5914. 

  5915. enabled libvpx            && {

  5916.     enabled libvpx_vp8_decoder && {

  5917.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5918.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5919.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5920.     }

  5921.     enabled libvpx_vp8_encoder && {

  5922.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5923.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5924.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5925.     }

  5926.     enabled libvpx_vp9_decoder && {

  5927.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5928.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx

  5929.     }

  5930.     enabled libvpx_vp9_encoder && {

  5931.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5932.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx

  5933.     }

  5934.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5935.         die "libvpx enabled but no supported decoders found"

  5936.     fi

  5937. }

  5938. 

  5939. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5940. enabled libwebp           && {

  5941.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5942.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5943. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5944.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5945.                                  warn "using libx264 without pkg-config"; } } &&

  5946.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5947.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5948.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5949.                                enable libx262; }

  5950. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5951.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5952.                                die "ERROR: libx265 version must be >= 68."; }

  5953. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs

  5954. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5955. enabled libzimg           && require_pkg_config "zimg >= 2.3.0" zimg.h zimg_get_api_version

  5956. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5957. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5958.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5959.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5960. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5961. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5962.                                { ! enabled cross_compile &&

  5963.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5964.                                  add_ldflags -L/opt/vc/lib/ &&

  5965.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5966.                                die "ERROR: mmal not found" &&

  5967.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5968. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5969.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5970.                                die "ERROR: openal not found"; } &&

  5971.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5972.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5973. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5974.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5975.                                die "ERROR: opencl not found"; } &&

  5976.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5977.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5978.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5979. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  5980.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5981.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5982.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5983.                                die "ERROR: opengl not found."

  5984.                              }

  5985. enabled omx_rpi           && { check_header OMX_Core.h ||

  5986.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  5987.                                die "ERROR: OpenMAX IL headers not found"; }

  5988. enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }

  5989. enabled openssl           && { use_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||

  5990.                                use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  5991.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5992.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5993.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5994.                                die "ERROR: openssl not found"; }

  5995. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5996. 

  5997. if enabled gcrypt; then

  5998.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5999.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6000.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6001.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6002.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6003.             die "ERROR: gcrypt not found"

  6004.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_extralibs

  6005.     else

  6006.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6007.     fi

  6008. fi

  6009. 

  6010. disabled sdl && disable sdl2

  6011. if ! disabled sdl2; then

  6012.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6013.     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then

  6014.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6015.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6016.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  6017.     else

  6018.       if "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6019.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6020.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6021.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6022.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6023.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  6024.       fi

  6025.     fi

  6026.     if test $target_os = "mingw32"; then

  6027.         sdl2_extralibs="$sdl2_extralibs -mconsole"

  6028.     fi

  6029. fi

  6030. enabled sdl2 && enable sdl && add_cflags $sdl2_cflags && add_extralibs $sdl2_extralibs

  6031. 

  6032. if enabled decklink; then

  6033.     case $target_os in

  6034.         mingw32*|mingw64*|win32|win64)

  6035.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6036.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6037.             ;;

  6038.     esac

  6039. fi

  6040. 

  6041. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6042.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security"; }

  6043. 

  6044. disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6045.                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }

  6046. 

  6047. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6048. enabled makeinfo \

  6049.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6050.     && enable makeinfo_html || disable makeinfo_html

  6051. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6052. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6053. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6054. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6055. 

  6056. check_header linux/fb.h

  6057. check_header linux/videodev.h

  6058. check_header linux/videodev2.h

  6059. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6060. 

  6061. check_header sys/videoio.h

  6062. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6063. 

  6064. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6065. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6066. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6067. # w32api 3.12 had it defined wrong

  6068. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6069. 

  6070. check_type "dshow.h" IBaseFilter

  6071. 

  6072. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6073. { check_header dev/bktr/ioctl_meteor.h &&

  6074.   check_header dev/bktr/ioctl_bt848.h; } ||

  6075. { check_header machine/ioctl_meteor.h &&

  6076.   check_header machine/ioctl_bt848.h; } ||

  6077. { check_header dev/video/meteor/ioctl_meteor.h &&

  6078.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  6079. check_header dev/ic/bt8xx.h

  6080. 

  6081. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6082.     enable_safe sys/soundcard.h

  6083. else

  6084.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  6085.     #include <sys/soundcard.h>

  6086.     audio_buf_info abc;

  6087. EOF

  6088. fi

  6089. check_header soundcard.h

  6090. 

  6091. enabled_any alsa_indev alsa_outdev &&

  6092.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6093. 

  6094. enabled jack_indev && check_lib jack jack/jack.h jack_client_open -ljack &&

  6095.     check_func jack_port_get_latency_range -ljack

  6096. 

  6097. enabled_any sndio_indev sndio_outdev && check_lib sndio sndio.h sio_open -lsndio

  6098. 

  6099. if enabled libcdio; then

  6100.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6101.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6102.     die "ERROR: No usable libcdio/cdparanoia found"

  6103. fi

  6104. 

  6105. if ! disabled libxcb; then

  6106.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  6107.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  6108.     } && enable libxcb

  6109. 

  6110. if enabled libxcb; then

  6111.     disabled libxcb_shm || {

  6112.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  6113.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  6114.         } && check_header sys/shm.h && enable libxcb_shm; }

  6115. 

  6116.     disabled libxcb_xfixes || {

  6117.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  6118.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  6119.         } && enable libxcb_xfixes; }

  6120. 

  6121.     disabled libxcb_shape || {

  6122.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  6123.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  6124.         } && enable libxcb_shape; }

  6125. 

  6126.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  6127.     add_extralibs $xcb_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs $xcb_shape_extralibs

  6128. fi

  6129. fi

  6130. 

  6131. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6132. 

  6133. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6134. # the desktop api partition

  6135. enabled LoadLibrary || d3d11va_extralibs="-ldxgi -ld3d11"

  6136. 

  6137. enabled vaapi &&

  6138.     check_lib vaapi va/va.h vaInitialize -lva

  6139. 

  6140. enabled vaapi &&

  6141.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6142.     disable vaapi

  6143. 

  6144. enabled vaapi &&

  6145.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6146. 

  6147. enabled vaapi &&

  6148.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6149. 

  6150. enabled vdpau &&

  6151.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6152.     disable vdpau

  6153. 

  6154. enabled vdpau &&

  6155.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6156. 

  6157. if enabled x86; then

  6158.     case $target_os in

  6159.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6160.             ;;

  6161.         *)

  6162.             disable cuda cuvid nvenc

  6163.             ;;

  6164.     esac

  6165. else

  6166.     disable cuda cuvid nvenc

  6167. fi

  6168. 

  6169. enabled nvenc &&

  6170.     check_cc -I$source_path <<EOF || disable nvenc

  6171. #include "compat/nvenc/nvEncodeAPI.h"

  6172. NV_ENCODE_API_FUNCTION_LIST flist;

  6173. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6174. int main(void) { return 0; }

  6175. EOF

  6176. 

  6177. # Funny iconv installations are not unusual, so check it after all flags have been set

  6178. disabled iconv || check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6179. 

  6180. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6181. 

  6182. # add some useful compiler flags if supported

  6183. check_cflags -Wdeclaration-after-statement

  6184. check_cflags -Wall

  6185. check_cflags -Wdisabled-optimization

  6186. check_cflags -Wpointer-arith

  6187. check_cflags -Wredundant-decls

  6188. check_cflags -Wwrite-strings

  6189. check_cflags -Wtype-limits

  6190. check_cflags -Wundef

  6191. check_cflags -Wmissing-prototypes

  6192. check_cflags -Wno-pointer-to-int-cast

  6193. check_cflags -Wstrict-prototypes

  6194. check_cflags -Wempty-body

  6195. 

  6196. if enabled extra_warnings; then

  6197.     check_cflags -Wcast-qual

  6198.     check_cflags -Wextra

  6199.     check_cflags -Wpedantic

  6200. fi

  6201. 

  6202. check_disable_warning(){

  6203.     warning_flag=-W${1#-Wno-}

  6204.     test_cflags $warning_flag && add_cflags $1

  6205. }

  6206. 

  6207. check_disable_warning -Wno-parentheses

  6208. check_disable_warning -Wno-switch

  6209. check_disable_warning -Wno-format-zero-length

  6210. check_disable_warning -Wno-pointer-sign

  6211. check_disable_warning -Wno-unused-const-variable

  6212. 

  6213. check_disable_warning_headers(){

  6214.     warning_flag=-W${1#-Wno-}

  6215.     test_cflags $warning_flag && add_cflags_headers $1

  6216. }

  6217. 

  6218. check_disable_warning_headers -Wno-deprecated-declarations

  6219. check_disable_warning_headers -Wno-unused-variable

  6220. 

  6221. check_cc <<EOF && enable blocks_extension

  6222. void (^block)(void);

  6223. EOF

  6224. 

  6225. # add some linker flags

  6226. check_ldflags -Wl,--warn-common

  6227. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6228. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6229. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6230. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6231. 

  6232. # add some strip flags

  6233. check_stripflags -x

  6234. 

  6235. enabled neon_clobber_test &&

  6236.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6237.                   -Wl,--wrap,avcodec_decode_audio4      \

  6238.                   -Wl,--wrap,avcodec_decode_video2      \

  6239.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6240.                   -Wl,--wrap,avcodec_encode_audio2      \

  6241.                   -Wl,--wrap,avcodec_encode_video2      \

  6242.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6243.                   -Wl,--wrap,avcodec_send_packet        \

  6244.                   -Wl,--wrap,avcodec_receive_packet     \

  6245.                   -Wl,--wrap,avcodec_send_frame         \

  6246.                   -Wl,--wrap,avcodec_receive_frame      \

  6247.                   -Wl,--wrap,swr_convert                \

  6248.                   -Wl,--wrap,avresample_convert ||

  6249.     disable neon_clobber_test

  6250. 

  6251. enabled xmm_clobber_test &&

  6252.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6253.                   -Wl,--wrap,avcodec_decode_audio4      \

  6254.                   -Wl,--wrap,avcodec_decode_video2      \

  6255.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6256.                   -Wl,--wrap,avcodec_encode_audio2      \

  6257.                   -Wl,--wrap,avcodec_encode_video2      \

  6258.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6259.                   -Wl,--wrap,avcodec_send_packet        \

  6260.                   -Wl,--wrap,avcodec_receive_packet     \

  6261.                   -Wl,--wrap,avcodec_send_frame         \

  6262.                   -Wl,--wrap,avcodec_receive_frame      \

  6263.                   -Wl,--wrap,swr_convert                \

  6264.                   -Wl,--wrap,avresample_convert         \

  6265.                   -Wl,--wrap,sws_scale ||

  6266.     disable xmm_clobber_test

  6267. 

  6268. check_ld "cc" <<EOF && enable proper_dce

  6269. extern const int array[512];

  6270. static inline int func(void) { return array[0]; }

  6271. int main(void) { return 0; }

  6272. EOF

  6273. 

  6274. if enabled proper_dce; then

  6275.     echo "X { local: *; };" > $TMPV

  6276.     if test_ldflags -Wl,${version_script},$TMPV; then

  6277.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6278.         check_cc <<EOF && enable symver_asm_label

  6279. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6280. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6281. EOF

  6282.         check_cc <<EOF && enable symver_gnu_asm

  6283. __asm__(".symver ff_foo,av_foo@VERSION");

  6284. void ff_foo(void) {}

  6285. EOF

  6286.     fi

  6287. fi

  6288. 

  6289. if [ -z "$optflags" ]; then

  6290.     if enabled small; then

  6291.         optflags=$cflags_size

  6292.     elif enabled optimizations; then

  6293.         optflags=$cflags_speed

  6294.     else

  6295.         optflags=$cflags_noopt

  6296.     fi

  6297. fi

  6298. 

  6299. if [ -z "$nvccflags" ]; then

  6300.     nvccflags=$nvccflags_default

  6301. fi

  6302. 

  6303. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6304.     nvccflags="$nvccflags -m64"

  6305. else

  6306.     nvccflags="$nvccflags -m32"

  6307. fi

  6308. 

  6309. check_optflags(){

  6310.     check_cflags "$@"

  6311.     enabled lto && check_ldflags "$@"

  6312. }

  6313. 

  6314. check_optflags $optflags

  6315. check_optflags -fno-math-errno

  6316. check_optflags -fno-signed-zeros

  6317. 

  6318. if enabled lto; then

  6319.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6320.     check_cflags  -flto

  6321.     check_ldflags -flto $cpuflags

  6322.     disable inline_asm_direct_symbol_refs

  6323. fi

  6324. 

  6325. enabled ftrapv && check_cflags -ftrapv

  6326. 

  6327. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6328. int x;

  6329. EOF

  6330. 

  6331. 

  6332. if enabled icc; then

  6333.     # Just warnings, no remarks

  6334.     check_cflags -w1

  6335.     # -wd: Disable following warnings

  6336.     # 144, 167, 556: -Wno-pointer-sign

  6337.     # 188: enumerated type mixed with another type

  6338.     # 1292: attribute "foo" ignored

  6339.     # 1419: external declaration in primary source file

  6340.     # 10006: ignoring unknown option -fno-signed-zeros

  6341.     # 10148: ignoring unknown option -Wno-parentheses

  6342.     # 10156: ignoring option '-W'; no argument required

  6343.     # 13200: No EMMS instruction before call to function

  6344.     # 13203: No EMMS instruction before return from function

  6345.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6346.     # 11030: Warning unknown option --as-needed

  6347.     # 10156: ignoring option '-export'; no argument required

  6348.     check_ldflags -wd10156,11030

  6349.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6350.     enable ebp_available

  6351.     # The test above does not test linking

  6352.     enabled lto && disable symver_asm_label

  6353.     if enabled x86_32; then

  6354.         icc_version=$($cc -dumpversion)

  6355.         test ${icc_version%%.*} -ge 11 &&

  6356.             check_cflags -falign-stack=maintain-16-byte ||

  6357.             disable aligned_stack

  6358.     fi

  6359. elif enabled ccc; then

  6360.     # disable some annoying warnings

  6361.     add_cflags -msg_disable bitnotint

  6362.     add_cflags -msg_disable mixfuncvoid

  6363.     add_cflags -msg_disable nonstandcast

  6364.     add_cflags -msg_disable unsupieee

  6365. elif enabled gcc; then

  6366.     check_optflags -fno-tree-vectorize

  6367.     check_cflags -Werror=format-security

  6368.     check_cflags -Werror=implicit-function-declaration

  6369.     check_cflags -Werror=missing-prototypes

  6370.     check_cflags -Werror=return-type

  6371.     check_cflags -Werror=vla

  6372.     check_cflags -Wformat

  6373.     check_cflags -fdiagnostics-color=auto

  6374.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6375. elif enabled llvm_gcc; then

  6376.     check_cflags -mllvm -stack-alignment=16

  6377. elif enabled clang; then

  6378.     check_cflags -mllvm -stack-alignment=16

  6379.     check_cflags -mstack-alignment=16

  6380.     check_cflags -Qunused-arguments

  6381.     check_cflags -Werror=implicit-function-declaration

  6382.     check_cflags -Werror=missing-prototypes

  6383.     check_cflags -Werror=return-type

  6384. elif enabled cparser; then

  6385.     add_cflags -Wno-missing-variable-declarations

  6386.     add_cflags -Wno-empty-statement

  6387. elif enabled armcc; then

  6388.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6389.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6390.     # 2523: use of inline assembly is deprecated

  6391.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6392.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6393.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6394.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6395.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6396.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6397. elif enabled tms470; then

  6398.     add_cflags -pds=824 -pds=837

  6399.     disable inline_asm

  6400. elif enabled pathscale; then

  6401.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6402. elif enabled_any msvc icl; then

  6403.     enabled x86_32 && disable aligned_stack

  6404.     enabled_all x86_32 debug && add_cflags -Oy-

  6405.     enabled debug && add_ldflags -debug

  6406.     enable pragma_deprecated

  6407.     if enabled icl; then

  6408.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6409.         # (correctly) on icl 13.x.

  6410.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6411.             add_cflags -Qansi-alias

  6412.         # Some inline asm is not compilable in debug

  6413.         if enabled debug; then

  6414.             disable ebp_available

  6415.             disable ebx_available

  6416.         fi

  6417.     fi

  6418.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6419.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6420.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6421.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6422.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6423.     # MSVC 2013 and newer can handle it fine.

  6424.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6425.     # happens in config.h.

  6426.     if [ $_restrict != restrict ]; then

  6427.         check_cc <<EOF || add_cflags -FIstdlib.h

  6428. __declspec($_restrict) void* foo(int);

  6429. EOF

  6430.     fi

  6431.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6432.     # Issue has been fixed in MSVC v19.00.24218.

  6433.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6434.         check_cflags -d2SSAOptimizer-

  6435.     # enable utf-8 source processing on VS2015 U2 and newer

  6436.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6437.         add_cflags -utf-8

  6438. fi

  6439. 

  6440. for pfx in "" host_; do

  6441.     varname=${pfx%_}cc_type

  6442.     eval "type=\$$varname"

  6443.     if [ "$type" = "msvc" ]; then

  6444.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6445. static inline int foo(int a) { return a; }

  6446. EOF

  6447.     fi

  6448. done

  6449. 

  6450. case $as_type in

  6451.     clang)

  6452.         add_asflags -Qunused-arguments

  6453.     ;;

  6454. esac

  6455. 

  6456. case $ld_type in

  6457.     clang)

  6458.         check_ldflags -Qunused-arguments

  6459.     ;;

  6460. esac

  6461. 

  6462. case $target_os in

  6463.     osf1)

  6464.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6465.     ;;

  6466. esac

  6467. 

  6468. enable frame_thread_encoder

  6469. 

  6470. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6471. 

  6472. check_deps $CONFIG_LIST       \

  6473.            $CONFIG_EXTRA      \

  6474.            $HAVE_LIST         \

  6475.            $ALL_COMPONENTS    \

  6476. 

  6477. 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"

  6478. 

  6479. 

  6480. if test $target_os = "haiku"; then

  6481.     disable memalign

  6482.     disable posix_memalign

  6483. fi

  6484. 

  6485. # add_dep lib dep

  6486. # -> enable ${lib}_deps_${dep}

  6487. # -> add $dep to ${lib}_deps only once

  6488. add_dep() {

  6489.     lib=$1

  6490.     dep=$2

  6491.     enabled "${lib}_deps_${dep}" && return 0

  6492.     enable  "${lib}_deps_${dep}"

  6493.     prepend "${lib}_deps" $dep

  6494. }

  6495. 

  6496. # merge deps lib components

  6497. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6498. merge_deps() {

  6499.     lib=$1

  6500.     shift

  6501.     for comp in $*; do

  6502.         enabled $comp || continue

  6503.         eval "dep=\"\$${comp}_deps\""

  6504.         for d in $dep; do

  6505.             add_dep $lib $d

  6506.         done

  6507.     done

  6508. }

  6509. 

  6510. merge_deps libavfilter $FILTER_LIST

  6511. 

  6512. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6513. 

  6514. for thread in $THREADS_LIST; do

  6515.     if enabled $thread; then

  6516.         test -n "$thread_type" &&

  6517.             die "ERROR: Only one thread type must be selected." ||

  6518.             thread_type="$thread"

  6519.     fi

  6520. done

  6521. 

  6522. if disabled stdatomic_h; then

  6523.     if enabled atomics_gcc; then

  6524.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6525.     elif enabled atomics_win32; then

  6526.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6527.     elif enabled atomics_suncc; then

  6528.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6529.     elif enabled pthreads; then

  6530.         add_compat atomics/pthread/stdatomic.o

  6531.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6532.     else

  6533.         enabled threads && die "Threading is enabled, but no atomics are available"

  6534.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6535.     fi

  6536. fi

  6537. 

  6538. # Check if requested libraries were found.

  6539. for lib in $AUTODETECT_LIBS; do

  6540.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6541. done

  6542. 

  6543. enabled zlib && add_cppflags -DZLIB_CONST

  6544. 

  6545. # conditional library dependencies, in linking order

  6546. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6547. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6548. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6549. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6550. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6551. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6552. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6553. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6554. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6555. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6556. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6557. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6558. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6559. enabled pan_filter          && prepend avfilter_deps "swresample"

  6560. enabled pp_filter           && prepend avfilter_deps "postproc"

  6561. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6562. enabled resample_filter && prepend avfilter_deps "avresample"

  6563. enabled sab_filter          && prepend avfilter_deps "swscale"

  6564. enabled scale_filter    && prepend avfilter_deps "swscale"

  6565. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6566. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6567. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6568. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6569. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6570. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6571. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6572. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6573. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6574. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6575. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6576. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6577. 

  6578. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6579. 

  6580. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6581. 

  6582. expand_deps(){

  6583.     lib_deps=${1}_deps

  6584.     eval "deps=\$$lib_deps"

  6585.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6586.     unique $lib_deps

  6587. }

  6588. 

  6589. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6590. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6591. 

  6592. map 'expand_deps $v' $LIBRARY_LIST

  6593. 

  6594. license="LGPL version 2.1 or later"

  6595. if enabled nonfree; then

  6596.     license="nonfree and unredistributable"

  6597. elif enabled gplv3; then

  6598.     license="GPL version 3 or later"

  6599. elif enabled lgplv3; then

  6600.     license="LGPL version 3 or later"

  6601. elif enabled gpl; then

  6602.     license="GPL version 2 or later"

  6603. fi

  6604. 

  6605. if test "$quiet" != "yes"; then

  6606. 

  6607. echo "install prefix            $prefix"

  6608. echo "source path               $source_path"

  6609. echo "C compiler                $cc"

  6610. echo "C library                 $libc_type"

  6611. if test "$host_cc" != "$cc"; then

  6612.     echo "host C compiler           $host_cc"

  6613.     echo "host C library            $host_libc_type"

  6614. fi

  6615. echo "ARCH                      $arch ($cpu)"

  6616. if test "$build_suffix" != ""; then

  6617.     echo "build suffix              $build_suffix"

  6618. fi

  6619. if test "$progs_suffix" != ""; then

  6620.     echo "progs suffix              $progs_suffix"

  6621. fi

  6622. if test "$extra_version" != ""; then

  6623.     echo "version string suffix     $extra_version"

  6624. fi

  6625. echo "big-endian                ${bigendian-no}"

  6626. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6627. if enabled x86; then

  6628.     echo "standalone assembly       ${x86asm-no}"

  6629.     echo "x86 assembler             ${x86asmexe}"

  6630.     echo "MMX enabled               ${mmx-no}"

  6631.     echo "MMXEXT enabled            ${mmxext-no}"

  6632.     echo "3DNow! enabled            ${amd3dnow-no}"

  6633.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6634.     echo "SSE enabled               ${sse-no}"

  6635.     echo "SSSE3 enabled             ${ssse3-no}"

  6636.     echo "AESNI enabled             ${aesni-no}"

  6637.     echo "AVX enabled               ${avx-no}"

  6638.     echo "XOP enabled               ${xop-no}"

  6639.     echo "FMA3 enabled              ${fma3-no}"

  6640.     echo "FMA4 enabled              ${fma4-no}"

  6641.     echo "i686 features enabled     ${i686-no}"

  6642.     echo "CMOV is fast              ${fast_cmov-no}"

  6643.     echo "EBX available             ${ebx_available-no}"

  6644.     echo "EBP available             ${ebp_available-no}"

  6645. fi

  6646. if enabled aarch64; then

  6647.     echo "NEON enabled              ${neon-no}"

  6648.     echo "VFP enabled               ${vfp-no}"

  6649. fi

  6650. if enabled arm; then

  6651.     echo "ARMv5TE enabled           ${armv5te-no}"

  6652.     echo "ARMv6 enabled             ${armv6-no}"

  6653.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6654.     echo "VFP enabled               ${vfp-no}"

  6655.     echo "NEON enabled              ${neon-no}"

  6656.     echo "THUMB enabled             ${thumb-no}"

  6657. fi

  6658. if enabled mips; then

  6659.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6660.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6661.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6662.     echo "MIPS MSA enabled          ${msa-no}"

  6663.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6664. fi

  6665. if enabled ppc; then

  6666.     echo "AltiVec enabled           ${altivec-no}"

  6667.     echo "VSX enabled               ${vsx-no}"

  6668.     echo "POWER8 enabled            ${power8-no}"

  6669.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6670.     echo "dcbzl available           ${dcbzl-no}"

  6671. fi

  6672. echo "debug symbols             ${debug-no}"

  6673. echo "strip symbols             ${stripping-no}"

  6674. echo "optimize for size         ${small-no}"

  6675. echo "optimizations             ${optimizations-no}"

  6676. echo "static                    ${static-no}"

  6677. echo "shared                    ${shared-no}"

  6678. echo "postprocessing support    ${postproc-no}"

  6679. echo "network support           ${network-no}"

  6680. echo "threading support         ${thread_type-no}"

  6681. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6682. echo "texi2html enabled         ${texi2html-no}"

  6683. echo "perl enabled              ${perl-no}"

  6684. echo "pod2man enabled           ${pod2man-no}"

  6685. echo "makeinfo enabled          ${makeinfo-no}"

  6686. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6687. test -n "$random_seed" &&

  6688.     echo "random seed               ${random_seed}"

  6689. echo

  6690. 

  6691. echo "External libraries:"

  6692. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6693. echo

  6694. 

  6695. echo "External libraries providing hardware acceleration:"

  6696. print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns

  6697. echo

  6698. 

  6699. echo "Libraries:"

  6700. print_enabled '' $LIBRARY_LIST | print_in_columns

  6701. echo

  6702. 

  6703. echo "Programs:"

  6704. print_enabled '' $PROGRAM_LIST | print_in_columns

  6705. echo

  6706. 

  6707. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6708.     echo "Enabled ${type}s:"

  6709.     eval list=\$$(toupper $type)_LIST

  6710.     print_enabled '_*' $list | print_in_columns

  6711.     echo

  6712. done

  6713. 

  6714. if test -n "$ignore_tests"; then

  6715.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6716.     echo "Ignored FATE tests:"

  6717.     echo $ignore_tests | print_in_columns

  6718.     echo

  6719. fi

  6720. 

  6721. echo "License: $license"

  6722. 

  6723. echo "Creating configuration files ..."

  6724. 

  6725. fi # test "$quiet" != "yes"

  6726. 

  6727. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6728. 

  6729. enabled stripping || strip="echo skipping strip"

  6730. 

  6731. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6732. 

  6733. cat > ffbuild/config.mak <<EOF

  6734. # Automatically generated by configure - do not modify!

  6735. ifndef FFMPEG_CONFIG_MAK

  6736. FFMPEG_CONFIG_MAK=1

  6737. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6738. prefix=$prefix

  6739. LIBDIR=\$(DESTDIR)$libdir

  6740. SHLIBDIR=\$(DESTDIR)$shlibdir

  6741. INCDIR=\$(DESTDIR)$incdir

  6742. BINDIR=\$(DESTDIR)$bindir

  6743. DATADIR=\$(DESTDIR)$datadir

  6744. DOCDIR=\$(DESTDIR)$docdir

  6745. MANDIR=\$(DESTDIR)$mandir

  6746. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6747. INSTALL_NAME_DIR=$install_name_dir

  6748. SRC_PATH=$source_path

  6749. SRC_LINK=$source_link

  6750. ifndef MAIN_MAKEFILE

  6751. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6752. endif

  6753. CC_IDENT=$cc_ident

  6754. ARCH=$arch

  6755. INTRINSICS=$intrinsics

  6756. CC=$cc

  6757. CXX=$cxx

  6758. AS=$as

  6759. OBJCC=$objcc

  6760. LD=$ld

  6761. DEPCC=$dep_cc

  6762. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6763. DEPAS=$as

  6764. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6765. X86ASM=$x86asmexe

  6766. DEPX86ASM=$x86asmexe

  6767. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6768. AR=$ar

  6769. ARFLAGS=$arflags

  6770. AR_O=$ar_o

  6771. RANLIB=$ranlib

  6772. STRIP=$strip

  6773. NVCC=$nvcc

  6774. CP=cp -p

  6775. LN_S=$ln_s

  6776. CPPFLAGS=$CPPFLAGS

  6777. CFLAGS=$CFLAGS

  6778. CXXFLAGS=$CXXFLAGS

  6779. OBJCFLAGS=$OBJCFLAGS

  6780. ASFLAGS=$ASFLAGS

  6781. NVCCFLAGS=$nvccflags

  6782. AS_C=$AS_C

  6783. AS_O=$AS_O

  6784. OBJCC_C=$OBJCC_C

  6785. OBJCC_E=$OBJCC_E

  6786. OBJCC_O=$OBJCC_O

  6787. CC_C=$CC_C

  6788. CC_E=$CC_E

  6789. CC_O=$CC_O

  6790. CXX_C=$CXX_C

  6791. CXX_O=$CXX_O

  6792. NVCC_C=$NVCC_C

  6793. NVCC_O=$NVCC_O

  6794. LD_O=$LD_O

  6795. X86ASM_O=$X86ASM_O

  6796. LD_LIB=$LD_LIB

  6797. LD_PATH=$LD_PATH

  6798. DLLTOOL=$dlltool

  6799. WINDRES=$windres

  6800. DEPWINDRES=$dep_cc

  6801. DOXYGEN=$doxygen

  6802. LDFLAGS=$LDFLAGS

  6803. LDEXEFLAGS=$LDEXEFLAGS

  6804. LDLIBFLAGS=$LDLIBFLAGS

  6805. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6806. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6807. X86ASMFLAGS=$X86ASMFLAGS

  6808. BUILDSUF=$build_suffix

  6809. PROGSSUF=$progs_suffix

  6810. FULLNAME=$FULLNAME

  6811. LIBPREF=$LIBPREF

  6812. LIBSUF=$LIBSUF

  6813. LIBNAME=$LIBNAME

  6814. SLIBPREF=$SLIBPREF

  6815. SLIBSUF=$SLIBSUF

  6816. EXESUF=$EXESUF

  6817. EXTRA_VERSION=$extra_version

  6818. CCDEP=$CCDEP

  6819. CXXDEP=$CXXDEP

  6820. CCDEP_FLAGS=$CCDEP_FLAGS

  6821. ASDEP=$ASDEP

  6822. ASDEP_FLAGS=$ASDEP_FLAGS

  6823. X86ASMDEP=$X86ASMDEP

  6824. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6825. CC_DEPFLAGS=$CC_DEPFLAGS

  6826. AS_DEPFLAGS=$AS_DEPFLAGS

  6827. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6828. HOSTCC=$host_cc

  6829. HOSTLD=$host_ld

  6830. HOSTCFLAGS=$host_cflags

  6831. HOSTCPPFLAGS=$host_cppflags

  6832. HOSTEXESUF=$HOSTEXESUF

  6833. HOSTLDFLAGS=$host_ldflags

  6834. HOSTEXTRALIBS=$host_extralibs

  6835. DEPHOSTCC=$host_cc

  6836. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6837. HOSTCCDEP=$HOSTCCDEP

  6838. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6839. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6840. HOSTCC_C=$HOSTCC_C

  6841. HOSTCC_O=$HOSTCC_O

  6842. HOSTLD_O=$HOSTLD_O

  6843. TARGET_EXEC=$target_exec $target_exec_args

  6844. TARGET_PATH=$target_path

  6845. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6846. CFLAGS-ffplay=${sdl2_cflags}

  6847. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6848. ZLIB=$($ldflags_filter -lz)

  6849. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6850. EXTRALIBS=$extralibs

  6851. COMPAT_OBJS=$compat_objs

  6852. INSTALL=$install

  6853. LIBTARGET=${LIBTARGET}

  6854. SLIBNAME=${SLIBNAME}

  6855. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6856. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6857. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6858. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6859. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6860. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6861. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6862. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6863. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6864. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6865. NOREDZONE_FLAGS=$noredzone_flags

  6866. LIBFUZZER_PATH=$libfuzzer_path

  6867. IGNORE_TESTS=$ignore_tests

  6868. EOF

  6869. 

  6870. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6871. 

  6872. print_program_extralibs(){

  6873.     eval "program_extralibs=\$${1}_extralibs"

  6874.     eval echo "EXTRALIBS-${1}=${program_extralibs}" >> ffbuild/config.mak

  6875. }

  6876. 

  6877. map 'print_program_extralibs $v' $PROGRAM_LIST

  6878. 

  6879. cat > $TMPH <<EOF

  6880. /* Automatically generated by configure - do not modify! */

  6881. #ifndef FFMPEG_CONFIG_H

  6882. #define FFMPEG_CONFIG_H

  6883. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6884. #define FFMPEG_LICENSE "$(c_escape $license)"

  6885. #define CONFIG_THIS_YEAR 2017

  6886. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6887. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6888. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6889. #define av_restrict $_restrict

  6890. #define EXTERN_PREFIX "${extern_prefix}"

  6891. #define EXTERN_ASM ${extern_prefix}

  6892. #define BUILDSUF "$build_suffix"

  6893. #define SLIBSUF "$SLIBSUF"

  6894. #define HAVE_MMX2 HAVE_MMXEXT

  6895. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6896. EOF

  6897. 

  6898. test -n "$assert_level" &&

  6899.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6900. 

  6901. test -n "$malloc_prefix" &&

  6902.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6903. 

  6904. if enabled x86asm; then

  6905.     append config_files $TMPASM

  6906.     printf '' >$TMPASM

  6907. fi

  6908. 

  6909. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6910. 

  6911. 

  6912. mkdir -p doc

  6913. mkdir -p tests

  6914. mkdir -p tests/api

  6915. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6916. 

  6917. print_config ARCH_   "$config_files" $ARCH_LIST

  6918. print_config HAVE_   "$config_files" $HAVE_LIST

  6919. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6920.                                      $CONFIG_EXTRA      \

  6921.                                      $ALL_COMPONENTS    \

  6922. 

  6923. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6924. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6925. 

  6926. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6927. cp_if_changed $TMPH config.h

  6928. touch ffbuild/.config

  6929. 

  6930. enabled x86asm && cp_if_changed $TMPASM config.asm

  6931. 

  6932. cat > $TMPH <<EOF

  6933. /* Generated by ffconf */

  6934. #ifndef AVUTIL_AVCONFIG_H

  6935. #define AVUTIL_AVCONFIG_H

  6936. EOF

  6937. 

  6938. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6939. 

  6940. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6941. 

  6942. cp_if_changed $TMPH libavutil/avconfig.h

  6943. 

  6944. # generate the lists of enabled components

  6945. print_enabled_components(){

  6946.     file=$1

  6947.     struct_name=$2

  6948.     name=$3

  6949.     shift 3

  6950.     echo "static const $struct_name *$name[] = {" > $TMPH

  6951.     for c in $*; do

  6952.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  6953.     done

  6954.     echo "    NULL };" >> $TMPH

  6955.     cp_if_changed $TMPH $file

  6956. }

  6957. 

  6958. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  6959. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  6960. 

  6961. if test -n "$WARNINGS"; then

  6962.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6963.     enabled fatal_warnings && exit 1

  6964. fi

  6965. 

  6966. # Settings for pkg-config files

  6967. 

  6968. cat > ffbuild/config.sh <<EOF

  6969. # Automatically generated by configure - do not modify!

  6970. shared=$shared

  6971. build_suffix=$build_suffix

  6972. prefix=$prefix

  6973. libdir=$libdir

  6974. incdir=$incdir

  6975. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  6976. source_path=${source_path}

  6977. LIBPREF=${LIBPREF}

  6978. LIBSUF=${LIBSUF}

  6979. 

  6980. extralibs_avutil="$LIBRT $LIBM"

  6981. extralibs_avcodec="$extralibs"

  6982. extralibs_avformat="$extralibs"

  6983. extralibs_avdevice="$extralibs"

  6984. extralibs_avfilter="$extralibs"

  6985. extralibs_avresample="$LIBM"

  6986. extralibs_postproc=""

  6987. extralibs_swscale="$LIBM"

  6988. extralibs_swresample="$LIBM $LIBSOXR"

  6989. EOF

  6990. 

  6991. for lib in $LIBRARY_LIST; do

  6992.     lib_deps="$(eval echo \$${lib}_deps)"

  6993.     echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh

  6994. done