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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

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

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

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

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

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

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  93.                            not part of the dynamic linker search path

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

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

  96. 

  97. Licensing options:

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

  99.                            and binaries will be under GPL [no]

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

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

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

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

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

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

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

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

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

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

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

  113. 

  114. Program options:

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

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

  119.   --disable-ffserver       disable ffserver build

  120. 

  121. Documentation options:

  122.   --disable-doc            do not build documentation

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

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

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

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

  127. 

  128. Component options:

  129.   --disable-avdevice       disable libavdevice build

  130.   --disable-avcodec        disable libavcodec build

  131.   --disable-avformat       disable libavformat build

  132.   --disable-swresample     disable libswresample build

  133.   --disable-swscale        disable libswscale build

  134.   --disable-postproc       disable libpostproc build

  135.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  141.   --disable-dct            disable DCT code

  142.   --disable-dwt            disable DWT code

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

  144.   --disable-lsp            disable LSP code

  145.   --disable-lzo            disable LZO decoder code

  146.   --disable-mdct           disable MDCT code

  147.   --disable-rdft           disable RDFT code

  148.   --disable-fft            disable FFT code

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

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

  151. 

  152. Individual component options:

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

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

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

  156.   --disable-encoders       disable all encoders

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

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

  159.   --disable-decoders       disable all decoders

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

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

  162.   --disable-hwaccels       disable all hwaccels

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

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

  165.   --disable-muxers         disable all muxers

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

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

  168.   --disable-demuxers       disable all demuxers

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

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

  171.   --disable-parsers        disable all parsers

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

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

  174.   --disable-bsfs           disable all bitstream filters

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

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

  177.   --disable-protocols      disable all protocols

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

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

  180.   --disable-indevs         disable input devices

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

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

  183.   --disable-outdevs        disable output devices

  184.   --disable-devices        disable all devices

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

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

  187.   --disable-filters        disable all filters

  188. 

  189. External library support:

  190. 

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

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

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

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

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

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

  197. 

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

  199.   libraries must be explicitly enabled.

  200. 

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

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

  203. 

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

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

  206.   --disable-bzlib          disable bzlib [autodetect]

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

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

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

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

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

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

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

  214.                            if openssl is not used [no]

  215.   --disable-iconv          disable iconv [autodetect]

  216.   --disable-jack           disable libjack support [autodetect]

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

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

  219.   --enable-libass          enable libass subtitles rendering,

  220.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  227.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  265.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  281.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

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

  287.   --enable-opencl          enable OpenCL code

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

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

  290.                            if gnutls is not used [no]

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

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

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

  294.   --disable-sdl2           disable sdl2 [autodetect]

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

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

  297.   --disable-xlib           disable xlib [autodetect]

  298.   --disable-zlib           disable zlib [autodetect]

  299. 

  300.   The following libraries provide various hardware acceleration features:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  317. 

  318. Toolchain options:

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

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

  321.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  372. 

  373. Advanced options (experts only):

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

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

  376.   --disable-symver         disable symbol versioning

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

  378.   --disable-safe-bitstream-reader

  379.                            disable buffer boundary checking in bitreaders

  380.                            (faster, but may crash)

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

  382. 

  383. Optimization options (experts only):

  384.   --disable-asm            disable all assembly optimizations

  385.   --disable-altivec        disable AltiVec optimizations

  386.   --disable-vsx            disable VSX optimizations

  387.   --disable-power8         disable POWER8 optimizations

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

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

  390.   --disable-mmx            disable MMX optimizations

  391.   --disable-mmxext         disable MMXEXT optimizations

  392.   --disable-sse            disable SSE optimizations

  393.   --disable-sse2           disable SSE2 optimizations

  394.   --disable-sse3           disable SSE3 optimizations

  395.   --disable-ssse3          disable SSSE3 optimizations

  396.   --disable-sse4           disable SSE4 optimizations

  397.   --disable-sse42          disable SSE4.2 optimizations

  398.   --disable-avx            disable AVX optimizations

  399.   --disable-xop            disable XOP optimizations

  400.   --disable-fma3           disable FMA3 optimizations

  401.   --disable-fma4           disable FMA4 optimizations

  402.   --disable-avx2           disable AVX2 optimizations

  403.   --disable-aesni          disable AESNI optimizations

  404.   --disable-armv5te        disable armv5te optimizations

  405.   --disable-armv6          disable armv6 optimizations

  406.   --disable-armv6t2        disable armv6t2 optimizations

  407.   --disable-vfp            disable VFP optimizations

  408.   --disable-neon           disable NEON optimizations

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

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

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

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

  413.   --disable-msa            disable MSA optimizations

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

  415.   --disable-mmi            disable Loongson SIMD optimizations

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

  417. 

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

  419.   --disable-debug          disable debugging symbols

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

  421.   --disable-optimizations  disable compiler optimizations

  422.   --enable-extra-warnings  enable more compiler warnings

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

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

  425.                            2 causes a slowdown at runtime.

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

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

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

  429.                            Cannot be combined with --target-exec

  430.   --enable-ftrapv          Trap arithmetic overflows

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

  432.                            \$FATE_SAMPLES at make invocation time.

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

  434.                            used only for debugging purposes)

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

  436.                            should be used only for debugging purposes)

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

  438.   --disable-random

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

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

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

  442.                            (group) and PROB the probability associated with

  443.                            NAME (default 0.5).

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

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

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

  447.   --enable-osfuzz          Enable building fuzzer tool

  448.   --libfuzzer=PATH         path to libfuzzer

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

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

  451. 

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

  453. EOF

  454.   exit 0

  455. }

  456. 

  457. quotes='""'

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

  459.     ncolors=$(tput colors)

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

  461.         bold_color=$(tput bold)

  462.         warn_color=$(tput setaf 3)

  463.         error_color=$(tput setaf 1)

  464.         reset_color=$(tput sgr0)

  465.     fi

  466.     # 72 used instead of 80 since that's the default of pr

  467.     ncols=$(tput cols)

  468. fi

  469. : ${ncols:=72}

  470. 

  471. log(){

  472.     echo "$@" >> $logfile

  473. }

  474. 

  475. log_file(){

  476.     log BEGIN $1

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

  478.     log END $1

  479. }

  480. 

  481. warn(){

  482.     log "WARNING: $*"

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

  484. }

  485. 

  486. die(){

  487.     log "$@"

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

  489.     cat <<EOF

  490. 

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

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

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

  494. EOF

  495.     if disabled logging; then

  496.         cat <<EOF

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

  498. include the log this produces with your report.

  499. EOF

  500.     else

  501.         cat <<EOF

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

  503. solve the problem.

  504. EOF

  505.     fi

  506.     exit 1

  507. }

  508. 

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

  510. toupper(){

  511.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  512. }

  513. 

  514. tolower(){

  515.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  516. }

  517. 

  518. c_escape(){

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

  520. }

  521. 

  522. sh_quote(){

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

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

  525.     echo "$v"

  526. }

  527. 

  528. cleanws(){

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

  530. }

  531. 

  532. filter(){

  533.     pat=$1

  534.     shift

  535.     for v; do

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

  537.     done

  538. }

  539. 

  540. filter_out(){

  541.     pat=$1

  542.     shift

  543.     for v; do

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

  545.     done

  546. }

  547. 

  548. map(){

  549.     m=$1

  550.     shift

  551.     for v; do eval $m; done

  552. }

  553. 

  554. add_suffix(){

  555.     suffix=$1

  556.     shift

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

  558. }

  559. 

  560. set_all(){

  561.     value=$1

  562.     shift

  563.     for var in $*; do

  564.         eval $var=$value

  565.     done

  566. }

  567. 

  568. set_weak(){

  569.     value=$1

  570.     shift

  571.     for var; do

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

  573.     done

  574. }

  575. 

  576. sanitize_var_name(){

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

  578. }

  579. 

  580. set_safe(){

  581.     var=$1

  582.     shift

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

  584. }

  585. 

  586. get_safe(){

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

  588. }

  589. 

  590. pushvar(){

  591.     for pvar in $*; do

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

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

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

  595.     done

  596. }

  597. 

  598. popvar(){

  599.     for pvar in $*; do

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

  601.         test $level = 0 && continue

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

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

  604.         eval ${pvar}_level=$level

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

  606.     done

  607. }

  608. 

  609. request(){

  610.     for var in $*; do

  611.         eval ${var}_requested=yes

  612.         eval $var=

  613.     done

  614. }

  615. 

  616. enable(){

  617.     set_all yes $*

  618. }

  619. 

  620. disable(){

  621.     set_all no $*

  622. }

  623. 

  624. enable_weak(){

  625.     set_weak yes $*

  626. }

  627. 

  628. disable_weak(){

  629.     set_weak no $*

  630. }

  631. 

  632. enable_safe(){

  633.     for var; do

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

  635.     done

  636. }

  637. 

  638. disable_safe(){

  639.     for var; do

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

  641.     done

  642. }

  643. 

  644. do_enable_deep(){

  645.     for var; do

  646.         enabled $var && continue

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

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

  649.         pushvar var sgs

  650.         enable_deep $sel

  651.         popvar sgs

  652.         enable_deep_weak $sgs

  653.         popvar var

  654.     done

  655. }

  656. 

  657. enable_deep(){

  658.     do_enable_deep $*

  659.     enable $*

  660. }

  661. 

  662. enable_deep_weak(){

  663.     for var; do

  664.         disabled $var && continue

  665.         pushvar var

  666.         do_enable_deep $var

  667.         popvar var

  668.         enable_weak $var

  669.     done

  670. }

  671. 

  672. requested(){

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

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

  675. }

  676. 

  677. enabled(){

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

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

  680. }

  681. 

  682. disabled(){

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

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

  685. }

  686. 

  687. enabled_all(){

  688.     for opt; do

  689.         enabled $opt || return 1

  690.     done

  691. }

  692. 

  693. disabled_all(){

  694.     for opt; do

  695.         disabled $opt || return 1

  696.     done

  697. }

  698. 

  699. enabled_any(){

  700.     for opt; do

  701.         enabled $opt && return 0

  702.     done

  703. }

  704. 

  705. disabled_any(){

  706.     for opt; do

  707.         disabled $opt && return 0

  708.     done

  709.     return 1

  710. }

  711. 

  712. set_default(){

  713.     for opt; do

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

  715.     done

  716. }

  717. 

  718. is_in(){

  719.     value=$1

  720.     shift

  721.     for var in $*; do

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

  723.     done

  724.     return 1

  725. }

  726. 

  727. do_check_deps(){

  728.     for cfg; do

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

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

  731.         disabled ${cfg}_checking && continue

  732.         enable ${cfg}_checking

  733.         append allopts $cfg

  734. 

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

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

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

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

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

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

  741. 

  742.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  744.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  745. 

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

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

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

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

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

  751. 

  752.         if enabled $cfg; then

  753.             enable_deep $dep_sel

  754.             enable_deep_weak $dep_sgs

  755.         fi

  756. 

  757.         disable ${cfg}_checking

  758.     done

  759. }

  760. 

  761. check_deps(){

  762.     unset allopts

  763. 

  764.     do_check_deps "$@"

  765. 

  766.     for cfg in $allopts; do

  767.         enabled $cfg || continue

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

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

  770.     done

  771. }

  772. 

  773. print_config(){

  774.     pfx=$1

  775.     files=$2

  776.     shift 2

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

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

  779.         {

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

  781.             v = \$2;

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

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

  784.             for (f in files) {

  785.                 file = files[f];

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

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

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

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

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

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

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

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

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

  795.                     yesno = \$2;

  796.                     c2 = tolower(c);

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

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

  799.                 }

  800.             }

  801.         }"

  802. }

  803. 

  804. print_enabled(){

  805.     suf=$1

  806.     shift

  807.     for v; do

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

  809.     done

  810. }

  811. 

  812. append(){

  813.     var=$1

  814.     shift

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

  816. }

  817. 

  818. prepend(){

  819.     var=$1

  820.     shift

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

  822. }

  823. 

  824. unique(){

  825.     var=$1

  826.     uniq_list=""

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

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

  829.     done

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

  831. }

  832. 

  833. add_cppflags(){

  834.     append CPPFLAGS "$@"

  835. }

  836. 

  837. add_cflags(){

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

  839. }

  840. 

  841. add_cflags_headers(){

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

  843. }

  844. 

  845. add_cxxflags(){

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

  847. }

  848. 

  849. add_asflags(){

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

  851. }

  852. 

  853. add_objcflags(){

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

  855. }

  856. 

  857. add_ldflags(){

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

  859. }

  860. 

  861. add_ldexeflags(){

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

  863. }

  864. 

  865. add_ldlibflags(){

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

  867. }

  868. 

  869. add_stripflags(){

  870.     append ASMSTRIPFLAGS "$@"

  871. }

  872. 

  873. add_extralibs(){

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

  875. }

  876. 

  877. add_host_cppflags(){

  878.     append host_cppflags "$@"

  879. }

  880. 

  881. add_host_cflags(){

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

  883. }

  884. 

  885. add_host_ldflags(){

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

  887. }

  888. 

  889. add_compat(){

  890.     append compat_objs $1

  891.     shift

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

  893. }

  894. 

  895. check_cmd(){

  896.     log "$@"

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

  898. }

  899. 

  900. check_stat(){

  901.     log check_stat "$@"

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

  903. }

  904. 

  905. cc_o(){

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

  907. }

  908. 

  909. cc_e(){

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

  911. }

  912. 

  913. check_cc(){

  914.     log check_cc "$@"

  915.     cat > $TMPC

  916.     log_file $TMPC

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

  918. }

  919. 

  920. check_cxx(){

  921.     log check_cxx "$@"

  922.     cat > $TMPCPP

  923.     log_file $TMPCPP

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

  925. }

  926. 

  927. check_objcc(){

  928.     log check_objcc "$@"

  929.     cat > $TMPM

  930.     log_file $TMPM

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

  932. }

  933. 

  934. check_cpp(){

  935.     log check_cpp "$@"

  936.     cat > $TMPC

  937.     log_file $TMPC

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

  939. }

  940. 

  941. as_o(){

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

  943. }

  944. 

  945. check_as(){

  946.     log check_as "$@"

  947.     cat > $TMPS

  948.     log_file $TMPS

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

  950. }

  951. 

  952. check_inline_asm(){

  953.     log check_inline_asm "$@"

  954.     name="$1"

  955.     code="$2"

  956.     shift 2

  957.     disable $name

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

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

  960. EOF

  961. }

  962. 

  963. check_inline_asm_flags(){

  964.     log check_inline_asm_flags "$@"

  965.     name="$1"

  966.     code="$2"

  967.     flags=''

  968.     shift 2

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

  970.       append flags $1

  971.       shift

  972.     done;

  973.     disable $name

  974.     cat > $TMPC <<EOF

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

  976. EOF

  977.     log_file $TMPC

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

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

  980. }

  981. 

  982. check_insn(){

  983.     log check_insn "$@"

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

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

  986. }

  987. 

  988. check_x86asm(){

  989.     log check_x86asm "$@"

  990.     echo "$1" > $TMPS

  991.     log_file $TMPS

  992.     shift 1

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

  994. }

  995. 

  996. ld_o(){

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

  998. }

  999. 

  1000. check_ld(){

  1001.     log check_ld "$@"

  1002.     type=$1

  1003.     shift 1

  1004.     flags=$(filter_out '-l*|*.so' $@)

  1005.     libs=$(filter '-l*|*.so' $@)

  1006.     check_$type $($cflags_filter $flags) || return

  1007.     flags=$($ldflags_filter $flags)

  1008.     libs=$($ldflags_filter $libs)

  1009.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1010. }

  1011. 

  1012. print_include(){

  1013.     hdr=$1

  1014.     test "${hdr%.h}" = "${hdr}" &&

  1015.         echo "#include $hdr"    ||

  1016.         echo "#include <$hdr>"

  1017. }

  1018. 

  1019. check_code(){

  1020.     log check_code "$@"

  1021.     check=$1

  1022.     headers=$2

  1023.     code=$3

  1024.     shift 3

  1025.     {

  1026.         for hdr in $headers; do

  1027.             print_include $hdr

  1028.         done

  1029.         echo "int main(void) { $code; return 0; }"

  1030.     } | check_$check "$@"

  1031. }

  1032. 

  1033. check_cppflags(){

  1034.     log check_cppflags "$@"

  1035.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1036. int x;

  1037. EOF

  1038. }

  1039. 

  1040. test_cflags(){

  1041.     log test_cflags "$@"

  1042.     set -- $($cflags_filter "$@")

  1043.     check_cc "$@" <<EOF

  1044. int x;

  1045. EOF

  1046. }

  1047. 

  1048. check_cflags(){

  1049.     log check_cflags "$@"

  1050.     test_cflags "$@" && add_cflags "$@"

  1051. }

  1052. 

  1053. check_cxxflags(){

  1054.     log check_cxxflags "$@"

  1055.     set -- $($cflags_filter "$@")

  1056.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1057. int x;

  1058. EOF

  1059. }

  1060. 

  1061. test_objcflags(){

  1062.     log test_objcflags "$@"

  1063.     set -- $($objcflags_filter "$@")

  1064.     check_objcc "$@" <<EOF

  1065. int x;

  1066. EOF

  1067. }

  1068. 

  1069. check_objcflags(){

  1070.     log check_objcflags "$@"

  1071.     test_objcflags "$@" && add_objcflags "$@"

  1072. }

  1073. 

  1074. test_ldflags(){

  1075.     log test_ldflags "$@"

  1076.     check_ld "cc" "$@" <<EOF

  1077. int main(void){ return 0; }

  1078. EOF

  1079. }

  1080. 

  1081. check_ldflags(){

  1082.     log check_ldflags "$@"

  1083.     test_ldflags "$@" && add_ldflags "$@"

  1084. }

  1085. 

  1086. test_stripflags(){

  1087.     log test_stripflags "$@"

  1088.     # call check_cc to get a fresh TMPO

  1089.     check_cc <<EOF

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

  1091. EOF

  1092.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1093. }

  1094. 

  1095. check_stripflags(){

  1096.     log check_stripflags "$@"

  1097.     test_stripflags "$@" && add_stripflags "$@"

  1098. }

  1099. 

  1100. check_header(){

  1101.     log check_header "$@"

  1102.     header=$1

  1103.     shift

  1104.     disable_safe $header

  1105.     check_cpp "$@" <<EOF && enable_safe $header

  1106. #include <$header>

  1107. int x;

  1108. EOF

  1109. }

  1110. 

  1111. check_header_objcc(){

  1112.     log check_header_objcc "$@"

  1113.     rm -f -- "$TMPO"

  1114.     header=$1

  1115.     shift

  1116.     disable_safe $header

  1117.     {

  1118.        echo "#include <$header>"

  1119.        echo "int main(void) { return 0; }"

  1120.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1121. }

  1122. 

  1123. check_func(){

  1124.     log check_func "$@"

  1125.     func=$1

  1126.     shift

  1127.     disable $func

  1128.     check_ld "cc" "$@" <<EOF && enable $func

  1129. extern int $func();

  1130. int main(void){ $func(); }

  1131. EOF

  1132. }

  1133. 

  1134. check_complexfunc(){

  1135.     log check_complexfunc "$@"

  1136.     func=$1

  1137.     narg=$2

  1138.     shift 2

  1139.     test $narg = 2 && args="f, g" || args="f * I"

  1140.     disable $func

  1141.     check_ld "cc" "$@" <<EOF && enable $func

  1142. #include <complex.h>

  1143. #include <math.h>

  1144. float foo(complex float f, complex float g) { return $func($args); }

  1145. int main(void){ return (int) foo; }

  1146. EOF

  1147. }

  1148. 

  1149. check_mathfunc(){

  1150.     log check_mathfunc "$@"

  1151.     func=$1

  1152.     narg=$2

  1153.     shift 2

  1154.     test $narg = 2 && args="f, g" || args="f"

  1155.     disable $func

  1156.     check_ld "cc" "$@" <<EOF && enable $func

  1157. #include <math.h>

  1158. float foo(float f, float g) { return $func($args); }

  1159. int main(void){ return (int) foo; }

  1160. EOF

  1161. }

  1162. 

  1163. check_func_headers(){

  1164.     log check_func_headers "$@"

  1165.     headers=$1

  1166.     funcs=$2

  1167.     shift 2

  1168.     {

  1169.         for hdr in $headers; do

  1170.             print_include $hdr

  1171.         done

  1172.         echo "#include <stdint.h>"

  1173.         for func in $funcs; do

  1174.             echo "long check_$func(void) { return (long) $func; }"

  1175.         done

  1176.         echo "int main(void) { int ret = 0;"

  1177.         # LTO could optimize out the test functions without this

  1178.         for func in $funcs; do

  1179.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1180.         done

  1181.         echo "return ret; }"

  1182.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1183. }

  1184. 

  1185. check_class_headers_cpp(){

  1186.     log check_class_headers_cpp "$@"

  1187.     headers=$1

  1188.     classes=$2

  1189.     shift 2

  1190.     {

  1191.         for hdr in $headers; do

  1192.             echo "#include <$hdr>"

  1193.         done

  1194.         echo "int main(void) { "

  1195.         i=1

  1196.         for class in $classes; do

  1197.             echo "$class obj$i;"

  1198.             i=$(expr $i + 1)

  1199.         done

  1200.         echo "return 0; }"

  1201.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1202. }

  1203. 

  1204. check_cpp_condition(){

  1205.     log check_cpp_condition "$@"

  1206.     header=$1

  1207.     condition=$2

  1208.     shift 2

  1209.     check_cpp "$@" <<EOF

  1210. #include <$header>

  1211. #if !($condition)

  1212. #error "unsatisfied condition: $condition"

  1213. #endif

  1214. EOF

  1215. }

  1216. 

  1217. test_cflags_cc(){

  1218.     log test_cflags_cc "$@"

  1219.     flags=$1

  1220.     header=$2

  1221.     condition=$3

  1222.     shift 3

  1223.     set -- $($cflags_filter "$flags")

  1224.     check_cc "$@" <<EOF

  1225. #include <$header>

  1226. #if !($condition)

  1227. #error "unsatisfied condition: $condition"

  1228. #endif

  1229. EOF

  1230. }

  1231. 

  1232. check_lib(){

  1233.     log check_lib "$@"

  1234.     name="$1"

  1235.     headers="$2"

  1236.     funcs="$3"

  1237.     shift 3

  1238.     disable $name

  1239.     check_func_headers "$headers" "$funcs" "$@" &&

  1240.         enable $name && add_extralibs "$@"

  1241. }

  1242. 

  1243. check_lib_cpp(){

  1244.     log check_lib_cpp "$@"

  1245.     headers="$1"

  1246.     classes="$2"

  1247.     shift 2

  1248.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1249. }

  1250. 

  1251. check_pkg_config(){

  1252.     log check_pkg_config "$@"

  1253.     pkg_version="$1"

  1254.     pkg="${1%% *}"

  1255.     headers="$2"

  1256.     funcs="$3"

  1257.     shift 3

  1258.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1259.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1260.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1261.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1262.         set_safe "${pkg}_cflags"    $pkg_cflags &&

  1263.         set_safe "${pkg}_extralibs" $pkg_libs

  1264. }

  1265. 

  1266. check_exec(){

  1267.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1268. }

  1269. 

  1270. check_exec_crash(){

  1271.     log check_exec_crash "$@"

  1272.     code=$(cat)

  1273. 

  1274.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1275.     # are safe but may not be available everywhere.  Thus we use

  1276.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1277.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1278.     # is not defined by standard C so it is used conditionally.

  1279. 

  1280.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1281. #include <signal.h>

  1282. static void sighandler(int sig){

  1283.     raise(SIGTERM);

  1284. }

  1285. int foo(void){

  1286.     $code

  1287. }

  1288. int (*func_ptr)(void) = foo;

  1289. int main(void){

  1290.     signal(SIGILL, sighandler);

  1291.     signal(SIGFPE, sighandler);

  1292.     signal(SIGSEGV, sighandler);

  1293. #ifdef SIGBUS

  1294.     signal(SIGBUS, sighandler);

  1295. #endif

  1296.     return func_ptr();

  1297. }

  1298. EOF

  1299. }

  1300. 

  1301. check_type(){

  1302.     log check_type "$@"

  1303.     headers=$1

  1304.     type=$2

  1305.     shift 2

  1306.     disable_safe "$type"

  1307.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1308. }

  1309. 

  1310. check_struct(){

  1311.     log check_struct "$@"

  1312.     headers=$1

  1313.     struct=$2

  1314.     member=$3

  1315.     shift 3

  1316.     disable_safe "${struct}_${member}"

  1317.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1318.         enable_safe "${struct}_${member}"

  1319. }

  1320. 

  1321. check_builtin(){

  1322.     log check_builtin "$@"

  1323.     name=$1

  1324.     headers=$2

  1325.     builtin=$3

  1326.     shift 3

  1327.     disable "$name"

  1328.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1329. }

  1330. 

  1331. check_compile_assert(){

  1332.     log check_compile_assert "$@"

  1333.     name=$1

  1334.     headers=$2

  1335.     condition=$3

  1336.     shift 3

  1337.     disable "$name"

  1338.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1339. }

  1340. 

  1341. require(){

  1342.     log require "$@"

  1343.     name_version="$1"

  1344.     name="${1%% *}"

  1345.     headers="$2"

  1346.     func="$3"

  1347.     shift 3

  1348.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1349. }

  1350. 

  1351. require_cpp(){

  1352.     name="$1"

  1353.     headers="$2"

  1354.     classes="$3"

  1355.     shift 3

  1356.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1357. }

  1358. 

  1359. use_pkg_config(){

  1360.     log use_pkg_config "$@"

  1361.     pkg="$1"

  1362.     check_pkg_config "$@" || return 1

  1363.     add_cflags    $(get_safe "${pkg}_cflags")

  1364.     add_extralibs $(get_safe "${pkg}_extralibs")

  1365. }

  1366. 

  1367. require_pkg_config(){

  1368.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1369. }

  1370. 

  1371. hostcc_e(){

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

  1373. }

  1374. 

  1375. hostcc_o(){

  1376.     eval printf '%s\\n' $HOSTCC_O

  1377. }

  1378. 

  1379. check_host_cc(){

  1380.     log check_host_cc "$@"

  1381.     cat > $TMPC

  1382.     log_file $TMPC

  1383.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1384. }

  1385. 

  1386. check_host_cpp(){

  1387.     log check_host_cpp "$@"

  1388.     cat > $TMPC

  1389.     log_file $TMPC

  1390.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1391. }

  1392. 

  1393. check_host_cppflags(){

  1394.     log check_host_cppflags "$@"

  1395.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1396. int x;

  1397. EOF

  1398. }

  1399. 

  1400. check_host_cflags(){

  1401.     log check_host_cflags "$@"

  1402.     set -- $($host_cflags_filter "$@")

  1403.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1404. int x;

  1405. EOF

  1406. }

  1407. 

  1408. check_host_cpp_condition(){

  1409.     log check_host_cpp_condition "$@"

  1410.     header=$1

  1411.     condition=$2

  1412.     shift 2

  1413.     check_host_cpp "$@" <<EOF

  1414. #include <$header>

  1415. #if !($condition)

  1416. #error "unsatisfied condition: $condition"

  1417. #endif

  1418. EOF

  1419. }

  1420. 

  1421. cp_if_changed(){

  1422.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1423.     mkdir -p "$(dirname $2)"

  1424.     cp -f "$1" "$2"

  1425. }

  1426. 

  1427. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1428. # system-dependent things.

  1429. 

  1430. AVCODEC_COMPONENTS="

  1431.     bsfs

  1432.     decoders

  1433.     encoders

  1434.     hwaccels

  1435.     parsers

  1436. "

  1437. 

  1438. AVDEVICE_COMPONENTS="

  1439.     indevs

  1440.     outdevs

  1441. "

  1442. AVFILTER_COMPONENTS="

  1443.     filters

  1444. "

  1445. AVFORMAT_COMPONENTS="

  1446.     demuxers

  1447.     muxers

  1448.     protocols

  1449. "

  1450. 

  1451. AVRESAMPLE_COMPONENTS=""

  1452. AVUTIL_COMPONENTS=""

  1453. 

  1454. COMPONENT_LIST="

  1455.     $AVCODEC_COMPONENTS

  1456.     $AVDEVICE_COMPONENTS

  1457.     $AVFILTER_COMPONENTS

  1458.     $AVFORMAT_COMPONENTS

  1459.     $AVRESAMPLE_COMPONENTS

  1460.     $AVUTIL_COMPONENTS

  1461. "

  1462. 

  1463. EXAMPLE_LIST="

  1464.     avio_dir_cmd_example

  1465.     avio_reading_example

  1466.     decode_audio_example

  1467.     decode_video_example

  1468.     demuxing_decoding_example

  1469.     encode_audio_example

  1470.     encode_video_example

  1471.     extract_mvs_example

  1472.     filter_audio_example

  1473.     filtering_audio_example

  1474.     filtering_video_example

  1475.     http_multiclient_example

  1476.     hw_decode_example

  1477.     metadata_example

  1478.     muxing_example

  1479.     qsvdec_example

  1480.     remuxing_example

  1481.     resampling_audio_example

  1482.     scaling_video_example

  1483.     transcode_aac_example

  1484.     transcoding_example

  1485. "

  1486. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1487.     alsa

  1488.     bzlib

  1489.     iconv

  1490.     jack

  1491.     libxcb

  1492.     libxcb_shm

  1493.     libxcb_shape

  1494.     libxcb_xfixes

  1495.     lzma

  1496.     schannel

  1497.     sdl2

  1498.     securetransport

  1499.     sndio

  1500.     xlib

  1501.     zlib

  1502. "

  1503. 

  1504. EXTERNAL_LIBRARY_GPL_LIST="

  1505.     avisynth

  1506.     frei0r

  1507.     libcdio

  1508.     librubberband

  1509.     libvidstab

  1510.     libx264

  1511.     libx265

  1512.     libxavs

  1513.     libxvid

  1514. "

  1515. 

  1516. EXTERNAL_LIBRARY_NONFREE_LIST="

  1517.     decklink

  1518.     libndi_newtek

  1519.     libfdk_aac

  1520.     openssl

  1521. "

  1522. 

  1523. EXTERNAL_LIBRARY_VERSION3_LIST="

  1524.     gmp

  1525.     libopencore_amrnb

  1526.     libopencore_amrwb

  1527.     libvo_amrwbenc

  1528. "

  1529. 

  1530. EXTERNAL_LIBRARY_GPLV3_LIST="

  1531.     libsmbclient

  1532. "

  1533. 

  1534. EXTERNAL_LIBRARY_LIST="

  1535.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1536.     $EXTERNAL_LIBRARY_GPL_LIST

  1537.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1538.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1539.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1540.     chromaprint

  1541.     gcrypt

  1542.     gnutls

  1543.     jni

  1544.     ladspa

  1545.     libass

  1546.     libbluray

  1547.     libbs2b

  1548.     libcaca

  1549.     libcelt

  1550.     libdc1394

  1551.     libflite

  1552.     libfontconfig

  1553.     libfreetype

  1554.     libfribidi

  1555.     libgme

  1556.     libgsm

  1557.     libiec61883

  1558.     libilbc

  1559.     libkvazaar

  1560.     libmodplug

  1561.     libmp3lame

  1562.     libmysofa

  1563.     libopencv

  1564.     libopenh264

  1565.     libopenjpeg

  1566.     libopenmpt

  1567.     libopus

  1568.     libpulse

  1569.     librsvg

  1570.     librtmp

  1571.     libshine

  1572.     libsmbclient

  1573.     libsnappy

  1574.     libsoxr

  1575.     libspeex

  1576.     libssh

  1577.     libtesseract

  1578.     libtheora

  1579.     libtwolame

  1580.     libv4l2

  1581.     libvmaf

  1582.     libvorbis

  1583.     libvpx

  1584.     libwavpack

  1585.     libwebp

  1586.     libzimg

  1587.     libzmq

  1588.     libzvbi

  1589.     mediacodec

  1590.     openal

  1591.     opencl

  1592.     opengl

  1593.     videotoolbox

  1594. "

  1595. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1596.     audiotoolbox

  1597.     crystalhd

  1598.     cuda

  1599.     cuvid

  1600.     d3d11va

  1601.     dxva2

  1602.     nvenc

  1603.     vaapi

  1604.     vda

  1605.     vdpau

  1606.     videotoolbox_hwaccel

  1607.     xvmc

  1608. "

  1609. 

  1610. HWACCEL_LIBRARY_NONFREE_LIST="

  1611.     cuda_sdk

  1612.     libnpp

  1613. "

  1614. 

  1615. HWACCEL_LIBRARY_LIST="

  1616.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1617.     $HWACCEL_LIBRARY_NONFREE_LIST

  1618.     libmfx

  1619.     mmal

  1620.     omx

  1621. "

  1622. 

  1623. DOCUMENT_LIST="

  1624.     doc

  1625.     htmlpages

  1626.     manpages

  1627.     podpages

  1628.     txtpages

  1629. "

  1630. 

  1631. FEATURE_LIST="

  1632.     ftrapv

  1633.     gray

  1634.     hardcoded_tables

  1635.     omx_rpi

  1636.     runtime_cpudetect

  1637.     safe_bitstream_reader

  1638.     shared

  1639.     small

  1640.     static

  1641.     swscale_alpha

  1642. "

  1643. 

  1644. LIBRARY_LIST="

  1645.     avcodec

  1646.     avdevice

  1647.     avfilter

  1648.     avformat

  1649.     avresample

  1650.     avutil

  1651.     postproc

  1652.     swresample

  1653.     swscale

  1654. "

  1655. 

  1656. LICENSE_LIST="

  1657.     gpl

  1658.     nonfree

  1659.     version3

  1660. "

  1661. 

  1662. PROGRAM_LIST="

  1663.     ffplay

  1664.     ffprobe

  1665.     ffserver

  1666.     ffmpeg

  1667. "

  1668. 

  1669. SUBSYSTEM_LIST="

  1670.     dct

  1671.     dwt

  1672.     error_resilience

  1673.     faan

  1674.     fast_unaligned

  1675.     fft

  1676.     lsp

  1677.     lzo

  1678.     mdct

  1679.     pixelutils

  1680.     network

  1681.     rdft

  1682. "

  1683. 

  1684. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1685. CONFIG_LIST="

  1686.     $DOCUMENT_LIST

  1687.     $EXAMPLE_LIST

  1688.     $EXTERNAL_LIBRARY_LIST

  1689.     $HWACCEL_LIBRARY_LIST

  1690.     $FEATURE_LIST

  1691.     $LICENSE_LIST

  1692.     $LIBRARY_LIST

  1693.     $PROGRAM_LIST

  1694.     $SUBSYSTEM_LIST

  1695.     autodetect

  1696.     fontconfig

  1697.     memory_poisoning

  1698.     neon_clobber_test

  1699.     ossfuzz

  1700.     pic

  1701.     thumb

  1702.     valgrind_backtrace

  1703.     xmm_clobber_test

  1704.     $COMPONENT_LIST

  1705. "

  1706. 

  1707. THREADS_LIST="

  1708.     pthreads

  1709.     os2threads

  1710.     w32threads

  1711. "

  1712. 

  1713. ATOMICS_LIST="

  1714.     atomics_gcc

  1715.     atomics_suncc

  1716.     atomics_win32

  1717. "

  1718. 

  1719. AUTODETECT_LIBS="

  1720.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1721.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1722.     $THREADS_LIST

  1723. "

  1724. 

  1725. ARCH_LIST="

  1726.     aarch64

  1727.     alpha

  1728.     arm

  1729.     avr32

  1730.     avr32_ap

  1731.     avr32_uc

  1732.     bfin

  1733.     ia64

  1734.     m68k

  1735.     mips

  1736.     mips64

  1737.     parisc

  1738.     ppc

  1739.     ppc64

  1740.     s390

  1741.     sh4

  1742.     sparc

  1743.     sparc64

  1744.     tilegx

  1745.     tilepro

  1746.     tomi

  1747.     x86

  1748.     x86_32

  1749.     x86_64

  1750. "

  1751. 

  1752. ARCH_EXT_LIST_ARM="

  1753.     armv5te

  1754.     armv6

  1755.     armv6t2

  1756.     armv8

  1757.     neon

  1758.     vfp

  1759.     vfpv3

  1760.     setend

  1761. "

  1762. 

  1763. ARCH_EXT_LIST_MIPS="

  1764.     mipsfpu

  1765.     mips32r2

  1766.     mips32r5

  1767.     mips64r2

  1768.     mips32r6

  1769.     mips64r6

  1770.     mipsdsp

  1771.     mipsdspr2

  1772.     msa

  1773. "

  1774. 

  1775. ARCH_EXT_LIST_LOONGSON="

  1776.     loongson2

  1777.     loongson3

  1778.     mmi

  1779. "

  1780. 

  1781. ARCH_EXT_LIST_X86_SIMD="

  1782.     aesni

  1783.     amd3dnow

  1784.     amd3dnowext

  1785.     avx

  1786.     avx2

  1787.     fma3

  1788.     fma4

  1789.     mmx

  1790.     mmxext

  1791.     sse

  1792.     sse2

  1793.     sse3

  1794.     sse4

  1795.     sse42

  1796.     ssse3

  1797.     xop

  1798. "

  1799. 

  1800. ARCH_EXT_LIST_PPC="

  1801.     altivec

  1802.     dcbzl

  1803.     ldbrx

  1804.     power8

  1805.     ppc4xx

  1806.     vsx

  1807. "

  1808. 

  1809. ARCH_EXT_LIST_X86="

  1810.     $ARCH_EXT_LIST_X86_SIMD

  1811.     cpunop

  1812.     i686

  1813. "

  1814. 

  1815. ARCH_EXT_LIST="

  1816.     $ARCH_EXT_LIST_ARM

  1817.     $ARCH_EXT_LIST_PPC

  1818.     $ARCH_EXT_LIST_X86

  1819.     $ARCH_EXT_LIST_MIPS

  1820.     $ARCH_EXT_LIST_LOONGSON

  1821. "

  1822. 

  1823. ARCH_FEATURES="

  1824.     aligned_stack

  1825.     fast_64bit

  1826.     fast_clz

  1827.     fast_cmov

  1828.     local_aligned_8

  1829.     local_aligned_16

  1830.     local_aligned_32

  1831.     simd_align_16

  1832.     simd_align_32

  1833. "

  1834. 

  1835. BUILTIN_LIST="

  1836.     atomic_cas_ptr

  1837.     machine_rw_barrier

  1838.     MemoryBarrier

  1839.     mm_empty

  1840.     rdtsc

  1841.     sarestart

  1842.     sem_timedwait

  1843.     sync_val_compare_and_swap

  1844. "

  1845. HAVE_LIST_CMDLINE="

  1846.     inline_asm

  1847.     symver

  1848.     x86asm

  1849. "

  1850. 

  1851. HAVE_LIST_PUB="

  1852.     bigendian

  1853.     fast_unaligned

  1854. "

  1855. 

  1856. HEADERS_LIST="

  1857.     altivec_h

  1858.     arpa_inet_h

  1859.     asm_types_h

  1860.     cdio_paranoia_h

  1861.     cdio_paranoia_paranoia_h

  1862.     cuda_h

  1863.     d3d11_h

  1864.     dispatch_dispatch_h

  1865.     dev_bktr_ioctl_bt848_h

  1866.     dev_bktr_ioctl_meteor_h

  1867.     dev_ic_bt8xx_h

  1868.     dev_video_bktr_ioctl_bt848_h

  1869.     dev_video_meteor_ioctl_meteor_h

  1870.     direct_h

  1871.     dirent_h

  1872.     dlfcn_h

  1873.     dxgidebug_h

  1874.     dxva_h

  1875.     ES2_gl_h

  1876.     gsm_h

  1877.     io_h

  1878.     mach_mach_time_h

  1879.     machine_ioctl_bt848_h

  1880.     machine_ioctl_meteor_h

  1881.     malloc_h

  1882.     opencv2_core_core_c_h

  1883.     openjpeg_2_2_openjpeg_h

  1884.     openjpeg_2_1_openjpeg_h

  1885.     openjpeg_2_0_openjpeg_h

  1886.     openjpeg_1_5_openjpeg_h

  1887.     OpenGL_gl3_h

  1888.     poll_h

  1889.     soundcard_h

  1890.     stdatomic_h

  1891.     sys_mman_h

  1892.     sys_param_h

  1893.     sys_resource_h

  1894.     sys_select_h

  1895.     sys_soundcard_h

  1896.     sys_time_h

  1897.     sys_un_h

  1898.     sys_videoio_h

  1899.     termios_h

  1900.     udplite_h

  1901.     unistd_h

  1902.     valgrind_valgrind_h

  1903.     windows_h

  1904.     winsock2_h

  1905. "

  1906. 

  1907. INTRINSICS_LIST="

  1908.     intrinsics_neon

  1909. "

  1910. 

  1911. COMPLEX_FUNCS="

  1912.     cabs

  1913.     cexp

  1914. "

  1915. 

  1916. MATH_FUNCS="

  1917.     atanf

  1918.     atan2f

  1919.     cbrt

  1920.     cbrtf

  1921.     copysign

  1922.     cosf

  1923.     erf

  1924.     exp2

  1925.     exp2f

  1926.     expf

  1927.     hypot

  1928.     isfinite

  1929.     isinf

  1930.     isnan

  1931.     ldexpf

  1932.     llrint

  1933.     llrintf

  1934.     log2

  1935.     log2f

  1936.     log10f

  1937.     lrint

  1938.     lrintf

  1939.     powf

  1940.     rint

  1941.     round

  1942.     roundf

  1943.     sinf

  1944.     trunc

  1945.     truncf

  1946. "

  1947. 

  1948. SYSTEM_FUNCS="

  1949.     access

  1950.     aligned_malloc

  1951.     arc4random

  1952.     clock_gettime

  1953.     closesocket

  1954.     CommandLineToArgvW

  1955.     CoTaskMemFree

  1956.     CryptGenRandom

  1957.     dlopen

  1958.     fcntl

  1959.     flt_lim

  1960.     fork

  1961.     getaddrinfo

  1962.     gethrtime

  1963.     getopt

  1964.     GetProcessAffinityMask

  1965.     GetProcessMemoryInfo

  1966.     GetProcessTimes

  1967.     getrusage

  1968.     GetSystemTimeAsFileTime

  1969.     gettimeofday

  1970.     glob

  1971.     glXGetProcAddress

  1972.     gmtime_r

  1973.     inet_aton

  1974.     isatty

  1975.     jack_port_get_latency_range

  1976.     kbhit

  1977.     LoadLibrary

  1978.     localtime_r

  1979.     lstat

  1980.     lzo1x_999_compress

  1981.     mach_absolute_time

  1982.     MapViewOfFile

  1983.     memalign

  1984.     mkstemp

  1985.     mmap

  1986.     mprotect

  1987.     nanosleep

  1988.     PeekNamedPipe

  1989.     posix_memalign

  1990.     pthread_cancel

  1991.     sched_getaffinity

  1992.     SetConsoleTextAttribute

  1993.     SetConsoleCtrlHandler

  1994.     setmode

  1995.     setrlimit

  1996.     Sleep

  1997.     strerror_r

  1998.     sysconf

  1999.     sysctl

  2000.     usleep

  2001.     UTGetOSTypeFromString

  2002.     VirtualAlloc

  2003.     wglGetProcAddress

  2004. "

  2005. 

  2006. TOOLCHAIN_FEATURES="

  2007.     as_dn_directive

  2008.     as_fpu_directive

  2009.     as_func

  2010.     as_object_arch

  2011.     asm_mod_q

  2012.     attribute_may_alias

  2013.     attribute_packed

  2014.     blocks_extension

  2015.     ebp_available

  2016.     ebx_available

  2017.     gnu_as

  2018.     gnu_windres

  2019.     ibm_asm

  2020.     inline_asm_direct_symbol_refs

  2021.     inline_asm_labels

  2022.     inline_asm_nonlocal_labels

  2023.     pragma_deprecated

  2024.     rsync_contimeout

  2025.     symver_asm_label

  2026.     symver_gnu_asm

  2027.     vfp_args

  2028.     xform_asm

  2029.     xmm_clobbers

  2030. "

  2031. 

  2032. TYPES_LIST="

  2033.     CONDITION_VARIABLE_Ptr

  2034.     socklen_t

  2035.     struct_addrinfo

  2036.     struct_group_source_req

  2037.     struct_ip_mreq_source

  2038.     struct_ipv6_mreq

  2039.     struct_msghdr_msg_flags

  2040.     struct_pollfd

  2041.     struct_rusage_ru_maxrss

  2042.     struct_sctp_event_subscribe

  2043.     struct_sockaddr_in6

  2044.     struct_sockaddr_sa_len

  2045.     struct_sockaddr_storage

  2046.     struct_stat_st_mtim_tv_nsec

  2047.     struct_v4l2_frmivalenum_discrete

  2048. "

  2049. 

  2050. HAVE_LIST="

  2051.     $ARCH_EXT_LIST

  2052.     $(add_suffix _external $ARCH_EXT_LIST)

  2053.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2054.     $ARCH_FEATURES

  2055.     $ATOMICS_LIST

  2056.     $BUILTIN_LIST

  2057.     $COMPLEX_FUNCS

  2058.     $HAVE_LIST_CMDLINE

  2059.     $HAVE_LIST_PUB

  2060.     $HEADERS_LIST

  2061.     $INTRINSICS_LIST

  2062.     $MATH_FUNCS

  2063.     $SYSTEM_FUNCS

  2064.     $THREADS_LIST

  2065.     $TOOLCHAIN_FEATURES

  2066.     $TYPES_LIST

  2067.     atomics_native

  2068.     dos_paths

  2069.     libc_msvcrt

  2070.     makeinfo

  2071.     makeinfo_html

  2072.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2073.     perl

  2074.     pod2man

  2075.     section_data_rel_ro

  2076.     texi2html

  2077.     threads

  2078.     uwp

  2079.     vaapi_drm

  2080.     vaapi_x11

  2081.     vdpau_x11

  2082.     winrt

  2083. "

  2084. 

  2085. # options emitted with CONFIG_ prefix but not available on the command line

  2086. CONFIG_EXTRA="

  2087.     aandcttables

  2088.     ac3dsp

  2089.     audio_frame_queue

  2090.     audiodsp

  2091.     blockdsp

  2092.     bswapdsp

  2093.     cabac

  2094.     dirac_parse

  2095.     dvprofile

  2096.     exif

  2097.     faandct

  2098.     faanidct

  2099.     fdctdsp

  2100.     flacdsp

  2101.     fmtconvert

  2102.     frame_thread_encoder

  2103.     g722dsp

  2104.     golomb

  2105.     gplv3

  2106.     h263dsp

  2107.     h264chroma

  2108.     h264dsp

  2109.     h264parse

  2110.     h264pred

  2111.     h264qpel

  2112.     hevcparse

  2113.     hpeldsp

  2114.     huffman

  2115.     huffyuvdsp

  2116.     huffyuvencdsp

  2117.     idctdsp

  2118.     iirfilter

  2119.     mdct15

  2120.     intrax8

  2121.     iso_media

  2122.     ividsp

  2123.     jpegtables

  2124.     lgplv3

  2125.     libx262

  2126.     llauddsp

  2127.     llviddsp

  2128.     llvidencdsp

  2129.     lpc

  2130.     lzf

  2131.     me_cmp

  2132.     mpeg_er

  2133.     mpegaudio

  2134.     mpegaudiodsp

  2135.     mpegaudioheader

  2136.     mpegvideo

  2137.     mpegvideoenc

  2138.     mss34dsp

  2139.     pixblockdsp

  2140.     qpeldsp

  2141.     qsv

  2142.     qsvdec

  2143.     qsvenc

  2144.     rangecoder

  2145.     riffdec

  2146.     riffenc

  2147.     rtpdec

  2148.     rtpenc_chain

  2149.     rv34dsp

  2150.     sinewin

  2151.     snappy

  2152.     srtp

  2153.     startcode

  2154.     texturedsp

  2155.     texturedspenc

  2156.     tpeldsp

  2157.     vaapi_encode

  2158.     vc1dsp

  2159.     videodsp

  2160.     vp3dsp

  2161.     vp56dsp

  2162.     vp8dsp

  2163.     vt_bt2020

  2164.     wma_freqs

  2165.     wmv2dsp

  2166. "

  2167. 

  2168. CMDLINE_SELECT="

  2169.     $ARCH_EXT_LIST

  2170.     $CONFIG_LIST

  2171.     $HAVE_LIST_CMDLINE

  2172.     $THREADS_LIST

  2173.     asm

  2174.     cross_compile

  2175.     debug

  2176.     extra_warnings

  2177.     logging

  2178.     lto

  2179.     optimizations

  2180.     rpath

  2181.     stripping

  2182. "

  2183. 

  2184. PATHS_LIST="

  2185.     bindir

  2186.     datadir

  2187.     docdir

  2188.     incdir

  2189.     libdir

  2190.     mandir

  2191.     pkgconfigdir

  2192.     prefix

  2193.     shlibdir

  2194.     install_name_dir

  2195. "

  2196. 

  2197. CMDLINE_SET="

  2198.     $PATHS_LIST

  2199.     ar

  2200.     arch

  2201.     as

  2202.     assert_level

  2203.     build_suffix

  2204.     cc

  2205.     objcc

  2206.     cpu

  2207.     cross_prefix

  2208.     custom_allocator

  2209.     cxx

  2210.     dep_cc

  2211.     doxygen

  2212.     env

  2213.     extra_version

  2214.     gas

  2215.     host_cc

  2216.     host_cflags

  2217.     host_extralibs

  2218.     host_ld

  2219.     host_ldflags

  2220.     host_os

  2221.     ignore_tests

  2222.     install

  2223.     ld

  2224.     ln_s

  2225.     logfile

  2226.     malloc_prefix

  2227.     nm

  2228.     optflags

  2229.     nvccflags

  2230.     pkg_config

  2231.     pkg_config_flags

  2232.     progs_suffix

  2233.     random_seed

  2234.     ranlib

  2235.     samples

  2236.     strip

  2237.     sws_max_filter_size

  2238.     sysinclude

  2239.     sysroot

  2240.     target_exec

  2241.     target_os

  2242.     target_path

  2243.     target_samples

  2244.     tempprefix

  2245.     toolchain

  2246.     valgrind

  2247.     x86asmexe

  2248. "

  2249. 

  2250. CMDLINE_APPEND="

  2251.     extra_cflags

  2252.     extra_cxxflags

  2253.     extra_objcflags

  2254.     host_cppflags

  2255. "

  2256. 

  2257. # code dependency declarations

  2258. 

  2259. # architecture extensions

  2260. 

  2261. armv5te_deps="arm"

  2262. armv6_deps="arm"

  2263. armv6t2_deps="arm"

  2264. armv8_deps="aarch64"

  2265. neon_deps_any="aarch64 arm"

  2266. intrinsics_neon_deps="neon"

  2267. vfp_deps_any="aarch64 arm"

  2268. vfpv3_deps="vfp"

  2269. setend_deps="arm"

  2270. 

  2271. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2272. 

  2273. loongson2_deps="mips"

  2274. loongson3_deps="mips"

  2275. mipsfpu_deps="mips"

  2276. mipsdsp_deps="mips"

  2277. mipsdspr2_deps="mips"

  2278. mips32r2_deps="mips"

  2279. mips32r5_deps="mips"

  2280. mips32r6_deps="mips"

  2281. mips64r2_deps="mips"

  2282. mips64r6_deps="mips"

  2283. msa_deps="mipsfpu"

  2284. mmi_deps="mips"

  2285. 

  2286. altivec_deps="ppc"

  2287. dcbzl_deps="ppc"

  2288. ldbrx_deps="ppc"

  2289. ppc4xx_deps="ppc"

  2290. vsx_deps="altivec"

  2291. power8_deps="vsx"

  2292. 

  2293. cpunop_deps="i686"

  2294. x86_64_select="i686"

  2295. x86_64_suggest="fast_cmov"

  2296. 

  2297. amd3dnow_deps="mmx"

  2298. amd3dnowext_deps="amd3dnow"

  2299. i686_deps="x86"

  2300. mmx_deps="x86"

  2301. mmxext_deps="mmx"

  2302. sse_deps="mmxext"

  2303. sse2_deps="sse"

  2304. sse3_deps="sse2"

  2305. ssse3_deps="sse3"

  2306. sse4_deps="ssse3"

  2307. sse42_deps="sse4"

  2308. aesni_deps="sse42"

  2309. avx_deps="sse42"

  2310. xop_deps="avx"

  2311. fma3_deps="avx"

  2312. fma4_deps="avx"

  2313. avx2_deps="avx"

  2314. 

  2315. mmx_external_deps="x86asm"

  2316. mmx_inline_deps="inline_asm"

  2317. mmx_suggest="mmx_external mmx_inline"

  2318. 

  2319. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2320.     eval dep=\$${ext}_deps

  2321.     eval ${ext}_external_deps='"${dep}_external"'

  2322.     eval ${ext}_inline_deps='"${dep}_inline"'

  2323.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2324. done

  2325. 

  2326. aligned_stack_if_any="aarch64 ppc x86"

  2327. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2328. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2329. fast_unaligned_if_any="aarch64 ppc x86"

  2330. simd_align_16_if_any="altivec neon sse"

  2331. simd_align_32_if_any="avx"

  2332. 

  2333. # system capabilities

  2334. symver_if_any="symver_asm_label symver_gnu_asm"

  2335. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2336. 

  2337. # threading support

  2338. atomics_gcc_if="sync_val_compare_and_swap"

  2339. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2340. atomics_win32_if="MemoryBarrier"

  2341. atomics_native_if_any="$ATOMICS_LIST"

  2342. w32threads_deps="atomics_native"

  2343. threads_if_any="$THREADS_LIST"

  2344. 

  2345. # subsystems

  2346. dct_select="rdft"

  2347. dirac_parse_select="golomb"

  2348. error_resilience_select="me_cmp"

  2349. faandct_deps="faan fdctdsp"

  2350. faanidct_deps="faan idctdsp"

  2351. h264dsp_select="startcode"

  2352. hevcparse_select="golomb"

  2353. frame_thread_encoder_deps="encoders threads"

  2354. intrax8_select="blockdsp idctdsp"

  2355. mdct_select="fft"

  2356. mdct15_select="fft"

  2357. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2358. mpeg_er_select="error_resilience"

  2359. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2360. mpegaudiodsp_select="dct"

  2361. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2362. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2363. vc1dsp_select="h264chroma qpeldsp startcode"

  2364. rdft_select="fft"

  2365. 

  2366. # decoders / encoders

  2367. aac_decoder_select="mdct15 mdct sinewin"

  2368. aac_fixed_decoder_select="mdct sinewin"

  2369. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2370. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2371. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2372. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2373. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2374. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2375. adpcm_g722_decoder_select="g722dsp"

  2376. adpcm_g722_encoder_select="g722dsp"

  2377. aic_decoder_select="golomb idctdsp"

  2378. alac_encoder_select="lpc"

  2379. als_decoder_select="bswapdsp"

  2380. amrnb_decoder_select="lsp"

  2381. amrwb_decoder_select="lsp"

  2382. amv_decoder_select="sp5x_decoder exif"

  2383. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2384. ape_decoder_select="bswapdsp llauddsp"

  2385. apng_decoder_select="zlib"

  2386. apng_encoder_select="llvidencdsp zlib"

  2387. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2388. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2389. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2390. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2391. atrac1_decoder_select="mdct sinewin"

  2392. atrac3_decoder_select="mdct"

  2393. atrac3p_decoder_select="mdct sinewin"

  2394. avrn_decoder_select="exif jpegtables"

  2395. bink_decoder_select="blockdsp hpeldsp"

  2396. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2397. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2398. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2399. clearvideo_decoder_select="idctdsp"

  2400. cllc_decoder_select="bswapdsp"

  2401. comfortnoise_encoder_select="lpc"

  2402. cook_decoder_select="audiodsp mdct sinewin"

  2403. cscd_decoder_select="lzo"

  2404. cscd_decoder_suggest="zlib"

  2405. dca_decoder_select="mdct"

  2406. dds_decoder_select="texturedsp"

  2407. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2408. dnxhd_decoder_select="blockdsp idctdsp"

  2409. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2410. dolby_e_decoder_select="mdct"

  2411. dvvideo_decoder_select="dvprofile idctdsp"

  2412. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2413. dxa_decoder_select="zlib"

  2414. dxv_decoder_select="lzf texturedsp"

  2415. eac3_decoder_select="ac3_decoder"

  2416. eac3_encoder_select="ac3_encoder"

  2417. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2418. eatgq_decoder_select="aandcttables"

  2419. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2420. exr_decoder_select="zlib"

  2421. ffv1_decoder_select="rangecoder"

  2422. ffv1_encoder_select="rangecoder"

  2423. ffvhuff_decoder_select="huffyuv_decoder"

  2424. ffvhuff_encoder_select="huffyuv_encoder"

  2425. fic_decoder_select="golomb"

  2426. flac_decoder_select="flacdsp"

  2427. flac_encoder_select="bswapdsp flacdsp lpc"

  2428. flashsv2_decoder_select="zlib"

  2429. flashsv2_encoder_select="zlib"

  2430. flashsv_decoder_select="zlib"

  2431. flashsv_encoder_select="zlib"

  2432. flv_decoder_select="h263_decoder"

  2433. flv_encoder_select="h263_encoder"

  2434. fourxm_decoder_select="blockdsp bswapdsp"

  2435. fraps_decoder_select="bswapdsp huffman"

  2436. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2437. g729_decoder_select="audiodsp"

  2438. h261_decoder_select="mpegvideo"

  2439. h261_encoder_select="aandcttables mpegvideoenc"

  2440. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2441. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2442. h263i_decoder_select="h263_decoder"

  2443. h263p_decoder_select="h263_decoder"

  2444. h263p_encoder_select="h263_encoder"

  2445. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2446. h264_decoder_suggest="error_resilience"

  2447. hap_decoder_select="snappy texturedsp"

  2448. hap_encoder_deps="libsnappy"

  2449. hap_encoder_select="texturedspenc"

  2450. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2451. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2452. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2453. iac_decoder_select="imc_decoder"

  2454. imc_decoder_select="bswapdsp fft mdct sinewin"

  2455. indeo3_decoder_select="hpeldsp"

  2456. indeo4_decoder_select="ividsp"

  2457. indeo5_decoder_select="ividsp"

  2458. interplay_video_decoder_select="hpeldsp"

  2459. jpegls_decoder_select="mjpeg_decoder"

  2460. jv_decoder_select="blockdsp"

  2461. lagarith_decoder_select="llviddsp"

  2462. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2463. magicyuv_decoder_select="llviddsp"

  2464. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2465. metasound_decoder_select="lsp mdct sinewin"

  2466. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2467. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2468. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2469. mjpegb_decoder_select="mjpeg_decoder"

  2470. mlp_decoder_select="mlp_parser"

  2471. mlp_encoder_select="lpc"

  2472. motionpixels_decoder_select="bswapdsp"

  2473. mp1_decoder_select="mpegaudio"

  2474. mp1float_decoder_select="mpegaudio"

  2475. mp2_decoder_select="mpegaudio"

  2476. mp2float_decoder_select="mpegaudio"

  2477. mp3_decoder_select="mpegaudio"

  2478. mp3adu_decoder_select="mpegaudio"

  2479. mp3adufloat_decoder_select="mpegaudio"

  2480. mp3float_decoder_select="mpegaudio"

  2481. mp3on4_decoder_select="mpegaudio"

  2482. mp3on4float_decoder_select="mpegaudio"

  2483. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2484. mpc8_decoder_select="mpegaudiodsp"

  2485. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2486. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2487. mpegvideo_decoder_select="mpegvideo"

  2488. mpeg1video_decoder_select="mpegvideo"

  2489. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2490. mpeg2video_decoder_select="mpegvideo"

  2491. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2492. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2493. mpeg4_encoder_select="h263_encoder"

  2494. msa1_decoder_select="mss34dsp"

  2495. mscc_decoder_select="zlib"

  2496. msmpeg4v1_decoder_select="h263_decoder"

  2497. msmpeg4v2_decoder_select="h263_decoder"

  2498. msmpeg4v2_encoder_select="h263_encoder"

  2499. msmpeg4v3_decoder_select="h263_decoder"

  2500. msmpeg4v3_encoder_select="h263_encoder"

  2501. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2502. mts2_decoder_select="mss34dsp"

  2503. mxpeg_decoder_select="mjpeg_decoder"

  2504. nellymoser_decoder_select="mdct sinewin"

  2505. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2506. nuv_decoder_select="idctdsp lzo"

  2507. on2avc_decoder_select="mdct"

  2508. opus_decoder_deps="swresample"

  2509. opus_decoder_select="mdct15"

  2510. opus_encoder_select="audio_frame_queue mdct15"

  2511. png_decoder_select="zlib"

  2512. png_encoder_select="llvidencdsp zlib"

  2513. prores_decoder_select="blockdsp idctdsp"

  2514. prores_encoder_select="fdctdsp"

  2515. qcelp_decoder_select="lsp"

  2516. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2517. ra_144_decoder_select="audiodsp"

  2518. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2519. ralf_decoder_select="golomb"

  2520. rawvideo_decoder_select="bswapdsp"

  2521. rscc_decoder_select="zlib"

  2522. rtjpeg_decoder_select="me_cmp"

  2523. rv10_decoder_select="h263_decoder"

  2524. rv10_encoder_select="h263_encoder"

  2525. rv20_decoder_select="h263_decoder"

  2526. rv20_encoder_select="h263_encoder"

  2527. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2528. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2529. screenpresso_decoder_select="zlib"

  2530. shorten_decoder_select="bswapdsp"

  2531. sipr_decoder_select="lsp"

  2532. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2533. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2534. sonic_decoder_select="golomb rangecoder"

  2535. sonic_encoder_select="golomb rangecoder"

  2536. sonic_ls_encoder_select="golomb rangecoder"

  2537. sp5x_decoder_select="mjpeg_decoder"

  2538. srgc_decoder_select="zlib"

  2539. svq1_decoder_select="hpeldsp"

  2540. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2541. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2542. svq3_decoder_suggest="zlib"

  2543. tak_decoder_select="audiodsp"

  2544. tdsc_decoder_select="zlib mjpeg_decoder"

  2545. theora_decoder_select="vp3_decoder"

  2546. thp_decoder_select="mjpeg_decoder"

  2547. tiff_decoder_suggest="zlib lzma"

  2548. tiff_encoder_suggest="zlib"

  2549. truehd_decoder_select="mlp_parser"

  2550. truehd_encoder_select="lpc"

  2551. truemotion2_decoder_select="bswapdsp"

  2552. truespeech_decoder_select="bswapdsp"

  2553. tscc_decoder_select="zlib"

  2554. twinvq_decoder_select="mdct lsp sinewin"

  2555. txd_decoder_select="texturedsp"

  2556. utvideo_decoder_select="bswapdsp llviddsp"

  2557. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2558. vble_decoder_select="llviddsp"

  2559. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2560. vc1_qsv_decoder_deps="libmfx"

  2561. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2562. vc1image_decoder_select="vc1_decoder"

  2563. vorbis_decoder_select="mdct"

  2564. vorbis_encoder_select="mdct"

  2565. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2566. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2567. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2568. vp6a_decoder_select="vp6_decoder"

  2569. vp6f_decoder_select="vp6_decoder"

  2570. vp7_decoder_select="h264pred videodsp vp8dsp"

  2571. vp8_decoder_select="h264pred videodsp vp8dsp"

  2572. vp9_decoder_select="videodsp vp9_parser"

  2573. webp_decoder_select="vp8_decoder exif"

  2574. wmalossless_decoder_select="llauddsp"

  2575. wmapro_decoder_select="mdct sinewin wma_freqs"

  2576. wmav1_decoder_select="mdct sinewin wma_freqs"

  2577. wmav1_encoder_select="mdct sinewin wma_freqs"

  2578. wmav2_decoder_select="mdct sinewin wma_freqs"

  2579. wmav2_encoder_select="mdct sinewin wma_freqs"

  2580. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2581. wmv1_decoder_select="h263_decoder"

  2582. wmv1_encoder_select="h263_encoder"

  2583. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2584. wmv2_encoder_select="h263_encoder wmv2dsp"

  2585. wmv3_decoder_select="vc1_decoder"

  2586. wmv3image_decoder_select="wmv3_decoder"

  2587. xma1_decoder_select="wmapro_decoder"

  2588. xma2_decoder_select="wmapro_decoder"

  2589. zerocodec_decoder_select="zlib"

  2590. zlib_decoder_select="zlib"

  2591. zlib_encoder_select="zlib"

  2592. zmbv_decoder_select="zlib"

  2593. zmbv_encoder_select="zlib"

  2594. 

  2595. # platform codecs

  2596. audiotoolbox_deps="AudioToolbox_AudioToolbox_h"

  2597. audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"

  2598. 

  2599. # hardware accelerators

  2600. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2601. cuda_deps_any="dlopen LoadLibrary"

  2602. cuvid_deps="cuda"

  2603. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2604. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"

  2605. dxva2_extralibs="-luser32"

  2606. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"

  2607. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2608. vda_deps="vda_framework pthreads"

  2609. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2610. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2611. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2612. xvmc_deps="X11_extensions_XvMClib_h"

  2613. 

  2614. h263_vaapi_hwaccel_deps="vaapi"

  2615. h263_vaapi_hwaccel_select="h263_decoder"

  2616. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2617. h263_videotoolbox_hwaccel_select="h263_decoder"

  2618. h264_cuvid_hwaccel_deps="cuda cuvid"

  2619. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2620. h264_d3d11va_hwaccel_deps="d3d11va"

  2621. h264_d3d11va_hwaccel_select="h264_decoder"

  2622. h264_d3d11va2_hwaccel_deps="d3d11va"

  2623. h264_d3d11va2_hwaccel_select="h264_decoder"

  2624. h264_dxva2_hwaccel_deps="dxva2"

  2625. h264_dxva2_hwaccel_select="h264_decoder"

  2626. h264_mediacodec_hwaccel_deps="mediacodec"

  2627. h264_mmal_hwaccel_deps="mmal"

  2628. h264_qsv_hwaccel_deps="libmfx"

  2629. h264_vaapi_hwaccel_deps="vaapi"

  2630. h264_vaapi_hwaccel_select="h264_decoder"

  2631. h264_vda_hwaccel_deps="vda"

  2632. h264_vda_hwaccel_select="h264_decoder"

  2633. h264_vda_old_hwaccel_deps="vda"

  2634. h264_vda_old_hwaccel_select="h264_decoder"

  2635. h264_vdpau_hwaccel_deps="vdpau"

  2636. h264_vdpau_hwaccel_select="h264_decoder"

  2637. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2638. h264_videotoolbox_hwaccel_select="h264_decoder"

  2639. hevc_cuvid_hwaccel_deps="cuda cuvid"

  2640. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2641. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2642. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2643. hevc_mediacodec_hwaccel_deps="mediacodec"

  2644. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2645. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2646. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2647. hevc_dxva2_hwaccel_select="hevc_decoder"

  2648. hevc_qsv_hwaccel_deps="libmfx"

  2649. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2650. hevc_vaapi_hwaccel_select="hevc_decoder"

  2651. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2652. hevc_vdpau_hwaccel_select="hevc_decoder"

  2653. mjpeg_cuvid_hwaccel_deps="cuda cuvid"

  2654. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2655. mpeg_xvmc_hwaccel_deps="xvmc"

  2656. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2657. mpeg1_cuvid_hwaccel_deps="cuda cuvid"

  2658. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2659. mpeg1_vdpau_hwaccel_deps="vdpau"

  2660. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2661. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2662. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2663. mpeg1_xvmc_hwaccel_deps="xvmc"

  2664. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2665. mpeg2_cuvid_hwaccel_deps="cuda cuvid"

  2666. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2667. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2668. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2669. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2670. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2671. mpeg2_dxva2_hwaccel_deps="dxva2"

  2672. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2673. mpeg2_mediacodec_hwaccel_deps="mediacodec"

  2674. mpeg2_mmal_hwaccel_deps="mmal"

  2675. mpeg2_qsv_hwaccel_deps="libmfx"

  2676. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2677. mpeg2_vaapi_hwaccel_deps="vaapi"

  2678. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2679. mpeg2_vdpau_hwaccel_deps="vdpau"

  2680. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2681. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2682. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2683. mpeg2_xvmc_hwaccel_deps="xvmc"

  2684. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2685. mpeg4_cuvid_hwaccel_deps="cuda cuvid"

  2686. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2687. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2688. mpeg4_mmal_hwaccel_deps="mmal"

  2689. mpeg4_vaapi_hwaccel_deps="vaapi"

  2690. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2691. mpeg4_vdpau_hwaccel_deps="vdpau"

  2692. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2693. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2694. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2695. vc1_cuvid_hwaccel_deps="cuda cuvid"

  2696. vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2697. vc1_d3d11va_hwaccel_deps="d3d11va"

  2698. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2699. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2700. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2701. vc1_dxva2_hwaccel_deps="dxva2"

  2702. vc1_dxva2_hwaccel_select="vc1_decoder"

  2703. vc1_mmal_hwaccel_deps="mmal"

  2704. vc1_qsv_hwaccel_deps="libmfx"

  2705. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2706. vc1_vaapi_hwaccel_deps="vaapi"

  2707. vc1_vaapi_hwaccel_select="vc1_decoder"

  2708. vc1_vdpau_hwaccel_deps="vdpau"

  2709. vc1_vdpau_hwaccel_select="vc1_decoder"

  2710. vp8_cuvid_hwaccel_deps="cuda cuvid"

  2711. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2712. vp9_cuvid_hwaccel_deps="cuda cuvid"

  2713. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2714. vp8_mediacodec_hwaccel_deps="mediacodec"

  2715. vp8_qsv_hwaccel_deps="libmfx"

  2716. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2717. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2718. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2719. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2720. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2721. vp9_dxva2_hwaccel_select="vp9_decoder"

  2722. vp9_mediacodec_hwaccel_deps="mediacodec"

  2723. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2724. vp9_vaapi_hwaccel_select="vp9_decoder"

  2725. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2726. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2727. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2728. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2729. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2730. 

  2731. # hardware-accelerated codecs

  2732. omx_deps="dlopen pthreads"

  2733. omx_extralibs='$ldl'

  2734. omx_rpi_select="omx"

  2735. qsvdec_select="qsv"

  2736. qsvenc_select="qsv"

  2737. vaapi_encode_deps="vaapi"

  2738. 

  2739. hwupload_cuda_filter_deps="cuda"

  2740. scale_npp_filter_deps="cuda libnpp"

  2741. scale_cuda_filter_deps="cuda_sdk"

  2742. 

  2743. nvenc_deps="cuda"

  2744. nvenc_deps_any="dlopen LoadLibrary"

  2745. nvenc_encoder_deps="nvenc"

  2746. 

  2747. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2748. h264_cuvid_decoder_deps="cuda cuvid"

  2749. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2750. h264_mediacodec_decoder_deps="mediacodec"

  2751. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2752. h264_mmal_decoder_deps="mmal"

  2753. h264_nvenc_encoder_deps="nvenc"

  2754. h264_omx_encoder_deps="omx"

  2755. h264_qsv_decoder_deps="libmfx"

  2756. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2757. h264_qsv_encoder_deps="libmfx"

  2758. h264_qsv_encoder_select="qsvenc"

  2759. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2760. h264_vaapi_encoder_select="vaapi_encode golomb"

  2761. h264_vda_decoder_deps="vda"

  2762. h264_vda_decoder_select="h264_decoder"

  2763. h264_vdpau_decoder_deps="vdpau"

  2764. h264_vdpau_decoder_select="h264_decoder"

  2765. hevc_cuvid_decoder_deps="cuda cuvid"

  2766. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2767. hevc_mediacodec_decoder_deps="mediacodec"

  2768. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2769. hevc_nvenc_encoder_deps="nvenc"

  2770. hevc_qsv_decoder_deps="libmfx"

  2771. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2772. hevc_qsv_encoder_deps="libmfx"

  2773. hevc_qsv_encoder_select="hevcparse qsvenc"

  2774. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2775. hevc_vaapi_encoder_select="vaapi_encode golomb"

  2776. mjpeg_cuvid_decoder_deps="cuda cuvid"

  2777. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2778. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2779. mpeg1_cuvid_decoder_deps="cuda cuvid"

  2780. mpeg1_vdpau_decoder_deps="vdpau"

  2781. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2782. mpeg2_crystalhd_decoder_select="crystalhd"

  2783. mpeg2_cuvid_decoder_deps="cuda cuvid"

  2784. mpeg2_mmal_decoder_deps="mmal"

  2785. mpeg2_mediacodec_decoder_deps="mediacodec"

  2786. mpeg2_qsv_decoder_deps="libmfx"

  2787. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2788. mpeg2_qsv_encoder_deps="libmfx"

  2789. mpeg2_qsv_encoder_select="qsvenc"

  2790. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2791. mpeg2_vaapi_encoder_select="vaapi_encode"

  2792. mpeg4_crystalhd_decoder_select="crystalhd"

  2793. mpeg4_cuvid_decoder_deps="cuda cuvid"

  2794. mpeg4_mediacodec_decoder_deps="mediacodec"

  2795. mpeg4_mmal_decoder_deps="mmal"

  2796. mpeg4_omx_encoder_deps="omx"

  2797. mpeg4_vdpau_decoder_deps="vdpau"

  2798. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2799. mpeg_vdpau_decoder_deps="vdpau"

  2800. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2801. msmpeg4_crystalhd_decoder_select="crystalhd"

  2802. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2803. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2804. vc1_crystalhd_decoder_select="crystalhd"

  2805. vc1_cuvid_decoder_deps="cuda cuvid"

  2806. vc1_mmal_decoder_deps="mmal"

  2807. vc1_vdpau_decoder_deps="vdpau"

  2808. vc1_vdpau_decoder_select="vc1_decoder"

  2809. vp8_cuvid_decoder_deps="cuda cuvid"

  2810. vp8_mediacodec_decoder_deps="mediacodec"

  2811. vp8_qsv_decoder_deps="libmfx"

  2812. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2813. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2814. vp8_vaapi_encoder_select="vaapi_encode"

  2815. vp9_cuvid_decoder_deps="cuda cuvid"

  2816. vp9_mediacodec_decoder_deps="mediacodec"

  2817. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2818. vp9_vaapi_encoder_select="vaapi_encode"

  2819. wmv3_crystalhd_decoder_select="crystalhd"

  2820. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2821. 

  2822. # parsers

  2823. h264_parser_select="golomb h264dsp h264parse"

  2824. hevc_parser_select="hevcparse"

  2825. mpegaudio_parser_select="mpegaudioheader"

  2826. mpegvideo_parser_select="mpegvideo"

  2827. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2828. vc1_parser_select="vc1dsp"

  2829. 

  2830. # bitstream_filters

  2831. mjpeg2jpeg_bsf_select="jpegtables"

  2832. 

  2833. # external libraries

  2834. aac_at_decoder_deps="audiotoolbox"

  2835. ac3_at_decoder_deps="audiotoolbox"

  2836. ac3_at_decoder_select="ac3_parser"

  2837. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2838. alac_at_decoder_deps="audiotoolbox"

  2839. amr_nb_at_decoder_deps="audiotoolbox"

  2840. avisynth_deps_any="dlopen LoadLibrary"

  2841. avisynth_demuxer_deps="avisynth"

  2842. avisynth_demuxer_select="riffdec"

  2843. eac3_at_decoder_deps="audiotoolbox"

  2844. eac3_at_decoder_select="ac3_parser"

  2845. gsm_ms_at_decoder_deps="audiotoolbox"

  2846. ilbc_at_decoder_deps="audiotoolbox"

  2847. mp1_at_decoder_deps="audiotoolbox"

  2848. mp2_at_decoder_deps="audiotoolbox"

  2849. mp3_at_decoder_deps="audiotoolbox"

  2850. mp1_at_decoder_select="mpegaudioheader"

  2851. mp2_at_decoder_select="mpegaudioheader"

  2852. mp3_at_decoder_select="mpegaudioheader"

  2853. pcm_alaw_at_decoder_deps="audiotoolbox"

  2854. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2855. qdmc_at_decoder_deps="audiotoolbox"

  2856. qdm2_at_decoder_deps="audiotoolbox"

  2857. aac_at_encoder_deps="audiotoolbox"

  2858. aac_at_encoder_select="audio_frame_queue"

  2859. alac_at_encoder_deps="audiotoolbox"

  2860. alac_at_encoder_select="audio_frame_queue"

  2861. ilbc_at_encoder_deps="audiotoolbox"

  2862. ilbc_at_encoder_select="audio_frame_queue"

  2863. pcm_alaw_at_encoder_deps="audiotoolbox"

  2864. pcm_alaw_at_encoder_select="audio_frame_queue"

  2865. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2866. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2867. chromaprint_muxer_deps="chromaprint"

  2868. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2869. libcelt_decoder_deps="libcelt"

  2870. libfdk_aac_decoder_deps="libfdk_aac"

  2871. libfdk_aac_encoder_deps="libfdk_aac"

  2872. libfdk_aac_encoder_select="audio_frame_queue"

  2873. libgme_demuxer_deps="libgme"

  2874. libgsm_decoder_deps="libgsm"

  2875. libgsm_encoder_deps="libgsm"

  2876. libgsm_ms_decoder_deps="libgsm"

  2877. libgsm_ms_encoder_deps="libgsm"

  2878. libilbc_decoder_deps="libilbc"

  2879. libilbc_encoder_deps="libilbc"

  2880. libkvazaar_encoder_deps="libkvazaar"

  2881. libmodplug_demuxer_deps="libmodplug"

  2882. libmp3lame_encoder_deps="libmp3lame"

  2883. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2884. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2885. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2886. libopencore_amrnb_encoder_select="audio_frame_queue"

  2887. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2888. libopenh264_decoder_deps="libopenh264"

  2889. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2890. libopenh264_encoder_deps="libopenh264"

  2891. libopenjpeg_decoder_deps="libopenjpeg"

  2892. libopenjpeg_encoder_deps="libopenjpeg"

  2893. libopenmpt_demuxer_deps="libopenmpt"

  2894. libopus_decoder_deps="libopus"

  2895. libopus_encoder_deps="libopus"

  2896. libopus_encoder_select="audio_frame_queue"

  2897. librsvg_decoder_deps="librsvg"

  2898. libshine_encoder_deps="libshine"

  2899. libshine_encoder_select="audio_frame_queue"

  2900. libspeex_decoder_deps="libspeex"

  2901. libspeex_encoder_deps="libspeex"

  2902. libspeex_encoder_select="audio_frame_queue"

  2903. libtheora_encoder_deps="libtheora"

  2904. libtwolame_encoder_deps="libtwolame"

  2905. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2906. libvorbis_decoder_deps="libvorbis"

  2907. libvorbis_encoder_deps="libvorbis"

  2908. libvorbis_encoder_select="audio_frame_queue"

  2909. libvpx_vp8_decoder_deps="libvpx"

  2910. libvpx_vp8_encoder_deps="libvpx"

  2911. libvpx_vp9_decoder_deps="libvpx"

  2912. libvpx_vp9_encoder_deps="libvpx"

  2913. libwavpack_encoder_deps="libwavpack"

  2914. libwavpack_encoder_select="audio_frame_queue"

  2915. libwebp_encoder_deps="libwebp"

  2916. libwebp_anim_encoder_deps="libwebp"

  2917. libx262_encoder_deps="libx262"

  2918. libx264_encoder_deps="libx264"

  2919. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2920. libx264rgb_encoder_select="libx264_encoder"

  2921. libx265_encoder_deps="libx265"

  2922. libxavs_encoder_deps="libxavs"

  2923. libxvid_encoder_deps="libxvid"

  2924. libzvbi_teletext_decoder_deps="libzvbi"

  2925. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2926. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2927. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2928. videotoolbox_encoder_suggest="vda_framework vt_bt2020"

  2929. vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"

  2930. 

  2931. # demuxers / muxers

  2932. ac3_demuxer_select="ac3_parser"

  2933. aiff_muxer_select="iso_media"

  2934. asf_demuxer_select="riffdec"

  2935. asf_o_demuxer_select="riffdec"

  2936. asf_muxer_select="riffenc"

  2937. asf_stream_muxer_select="asf_muxer"

  2938. avi_demuxer_select="iso_media riffdec exif"

  2939. avi_muxer_select="riffenc"

  2940. caf_demuxer_select="iso_media riffdec"

  2941. caf_muxer_select="iso_media"

  2942. dash_muxer_select="mp4_muxer"

  2943. dirac_demuxer_select="dirac_parser"

  2944. dts_demuxer_select="dca_parser"

  2945. dtshd_demuxer_select="dca_parser"

  2946. dv_demuxer_select="dvprofile"

  2947. dv_muxer_select="dvprofile"

  2948. dxa_demuxer_select="riffdec"

  2949. eac3_demuxer_select="ac3_parser"

  2950. f4v_muxer_select="mov_muxer"

  2951. fifo_muxer_deps="threads"

  2952. flac_demuxer_select="flac_parser"

  2953. hds_muxer_select="flv_muxer"

  2954. hls_muxer_select="mpegts_muxer"

  2955. image2_alias_pix_demuxer_select="image2_demuxer"

  2956. image2_brender_pix_demuxer_select="image2_demuxer"

  2957. ipod_muxer_select="mov_muxer"

  2958. ismv_muxer_select="mov_muxer"

  2959. matroska_audio_muxer_select="matroska_muxer"

  2960. matroska_demuxer_select="iso_media riffdec"

  2961. matroska_demuxer_suggest="bzlib lzo zlib"

  2962. matroska_muxer_select="iso_media riffenc"

  2963. mmf_muxer_select="riffenc"

  2964. mov_demuxer_select="iso_media riffdec"

  2965. mov_demuxer_suggest="zlib"

  2966. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2967. mp3_demuxer_select="mpegaudio_parser"

  2968. mp3_muxer_select="mpegaudioheader"

  2969. mp4_muxer_select="mov_muxer"

  2970. mpegts_demuxer_select="iso_media"

  2971. mpegts_muxer_select="adts_muxer latm_muxer"

  2972. mpegtsraw_demuxer_select="mpegts_demuxer"

  2973. mxf_d10_muxer_select="mxf_muxer"

  2974. mxf_opatom_muxer_select="mxf_muxer"

  2975. nut_muxer_select="riffenc"

  2976. nuv_demuxer_select="riffdec"

  2977. oga_muxer_select="ogg_muxer"

  2978. ogg_demuxer_select="dirac_parse"

  2979. ogv_muxer_select="ogg_muxer"

  2980. opus_muxer_select="ogg_muxer"

  2981. psp_muxer_select="mov_muxer"

  2982. rtp_demuxer_select="sdp_demuxer"

  2983. rtp_muxer_select="golomb"

  2984. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  2985. rtsp_demuxer_select="http_protocol rtpdec"

  2986. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2987. sap_demuxer_select="sdp_demuxer"

  2988. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2989. sdp_demuxer_select="rtpdec"

  2990. smoothstreaming_muxer_select="ismv_muxer"

  2991. spdif_muxer_select="aac_parser"

  2992. spx_muxer_select="ogg_muxer"

  2993. swf_demuxer_suggest="zlib"

  2994. tak_demuxer_select="tak_parser"

  2995. tg2_muxer_select="mov_muxer"

  2996. tgp_muxer_select="mov_muxer"

  2997. vobsub_demuxer_select="mpegps_demuxer"

  2998. w64_demuxer_select="wav_demuxer"

  2999. w64_muxer_select="wav_muxer"

  3000. wav_demuxer_select="riffdec"

  3001. wav_muxer_select="riffenc"

  3002. webm_muxer_select="iso_media riffenc"

  3003. webm_dash_manifest_demuxer_select="matroska_demuxer"

  3004. wtv_demuxer_select="mpegts_demuxer riffdec"

  3005. wtv_muxer_select="mpegts_muxer riffenc"

  3006. xmv_demuxer_select="riffdec"

  3007. xwma_demuxer_select="riffdec"

  3008. 

  3009. # indevs / outdevs

  3010. alsa_indev_deps="alsa"

  3011. alsa_outdev_deps="alsa"

  3012. avfoundation_indev_deps="pthreads"

  3013. avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"

  3014. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3015. caca_outdev_deps="libcaca"

  3016. decklink_indev_deps="decklink threads"

  3017. decklink_indev_extralibs="-lstdc++"

  3018. decklink_outdev_deps="decklink threads"

  3019. decklink_outdev_extralibs="-lstdc++"

  3020. libndi_newtek_indev_deps="libndi_newtek"

  3021. libndi_newtek_indev_extralibs="-lndi"

  3022. libndi_newtek_outdev_deps="libndi_newtek"

  3023. libndi_newtek_outdev_extralibs="-lndi"

  3024. dshow_indev_deps="IBaseFilter"

  3025. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3026. dv1394_indev_deps="dv1394"

  3027. dv1394_indev_select="dv_demuxer"

  3028. fbdev_indev_deps="linux_fb_h"

  3029. fbdev_outdev_deps="linux_fb_h"

  3030. gdigrab_indev_deps="CreateDIBSection"

  3031. gdigrab_indev_extralibs="-lgdi32"

  3032. gdigrab_indev_select="bmp_decoder"

  3033. iec61883_indev_deps="libiec61883"

  3034. jack_indev_deps="jack"

  3035. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3036. lavfi_indev_deps="avfilter"

  3037. libcdio_indev_deps="libcdio"

  3038. libdc1394_indev_deps="libdc1394"

  3039. libv4l2_indev_deps="libv4l2"

  3040. openal_indev_deps="openal"

  3041. opengl_outdev_deps="opengl"

  3042. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  3043. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  3044. pulse_indev_deps="libpulse"

  3045. pulse_outdev_deps="libpulse"

  3046. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  3047. qtkit_indev_select="qtkit"

  3048. sdl2_outdev_deps="sdl2"

  3049. sndio_indev_deps="sndio"

  3050. sndio_outdev_deps="sndio"

  3051. v4l_indev_deps="linux_videodev_h"

  3052. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3053. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3054. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3055. xcbgrab_indev_deps="libxcb"

  3056. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3057. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3058. 

  3059. # protocols

  3060. async_protocol_deps="threads"

  3061. bluray_protocol_deps="libbluray"

  3062. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  3063. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3064. ffrtmpcrypt_protocol_select="tcp_protocol"

  3065. ffrtmphttp_protocol_deps="!librtmp_protocol"

  3066. ffrtmphttp_protocol_select="http_protocol"

  3067. ftp_protocol_select="tcp_protocol"

  3068. gopher_protocol_select="network"

  3069. http_protocol_select="tcp_protocol"

  3070. httpproxy_protocol_select="tcp_protocol"

  3071. https_protocol_select="tls_protocol"

  3072. icecast_protocol_select="http_protocol"

  3073. librtmp_protocol_deps="librtmp"

  3074. librtmpe_protocol_deps="librtmp"

  3075. librtmps_protocol_deps="librtmp"

  3076. librtmpt_protocol_deps="librtmp"

  3077. librtmpte_protocol_deps="librtmp"

  3078. libsmbclient_protocol_deps="libsmbclient gplv3"

  3079. libssh_protocol_deps="libssh"

  3080. mmsh_protocol_select="http_protocol"

  3081. mmst_protocol_select="network"

  3082. rtmp_protocol_deps="!librtmp_protocol"

  3083. rtmp_protocol_select="tcp_protocol"

  3084. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3085. rtmps_protocol_deps="!librtmp_protocol"

  3086. rtmps_protocol_select="tls_protocol"

  3087. rtmpt_protocol_select="ffrtmphttp_protocol"

  3088. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3089. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3090. rtp_protocol_select="udp_protocol"

  3091. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3092. sctp_protocol_select="network"

  3093. srtp_protocol_select="rtp_protocol srtp"

  3094. tcp_protocol_select="network"

  3095. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  3096. tls_gnutls_protocol_select="tcp_protocol"

  3097. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  3098. tls_openssl_protocol_select="tcp_protocol"

  3099. tls_schannel_protocol_deps="schannel"

  3100. tls_schannel_protocol_select="tcp_protocol"

  3101. tls_securetransport_protocol_deps="securetransport"

  3102. tls_securetransport_protocol_select="tcp_protocol"

  3103. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3104. udp_protocol_select="network"

  3105. udplite_protocol_select="network"

  3106. unix_protocol_deps="sys_un_h"

  3107. unix_protocol_select="network"

  3108. 

  3109. # filters

  3110. afftfilt_filter_deps="avcodec"

  3111. afftfilt_filter_select="fft"

  3112. afir_filter_deps="avcodec"

  3113. afir_filter_select="fft"

  3114. amovie_filter_deps="avcodec avformat"

  3115. aresample_filter_deps="swresample"

  3116. ass_filter_deps="libass"

  3117. atempo_filter_deps="avcodec"

  3118. atempo_filter_select="rdft"

  3119. azmq_filter_deps="libzmq"

  3120. blackframe_filter_deps="gpl"

  3121. boxblur_filter_deps="gpl"

  3122. bs2b_filter_deps="libbs2b"

  3123. colormatrix_filter_deps="gpl"

  3124. cover_rect_filter_deps="avcodec avformat gpl"

  3125. cropdetect_filter_deps="gpl"

  3126. deinterlace_qsv_filter_deps="libmfx"

  3127. deinterlace_vaapi_filter_deps="vaapi"

  3128. delogo_filter_deps="gpl"

  3129. deshake_filter_select="pixelutils"

  3130. drawtext_filter_deps="libfreetype"

  3131. elbg_filter_deps="avcodec"

  3132. eq_filter_deps="gpl"

  3133. fftfilt_filter_deps="avcodec"

  3134. fftfilt_filter_select="rdft"

  3135. find_rect_filter_deps="avcodec avformat gpl"

  3136. firequalizer_filter_deps="avcodec"

  3137. firequalizer_filter_select="rdft"

  3138. flite_filter_deps="libflite"

  3139. framerate_filter_select="pixelutils"

  3140. frei0r_filter_deps="frei0r dlopen"

  3141. frei0r_src_filter_deps="frei0r dlopen"

  3142. fspp_filter_deps="gpl"

  3143. geq_filter_deps="gpl"

  3144. histeq_filter_deps="gpl"

  3145. hqdn3d_filter_deps="gpl"

  3146. interlace_filter_deps="gpl"

  3147. kerndeint_filter_deps="gpl"

  3148. ladspa_filter_deps="ladspa dlopen"

  3149. mcdeint_filter_deps="avcodec gpl"

  3150. movie_filter_deps="avcodec avformat"

  3151. mpdecimate_filter_deps="gpl"

  3152. mpdecimate_filter_select="pixelutils"

  3153. mptestsrc_filter_deps="gpl"

  3154. negate_filter_deps="lut_filter"

  3155. nnedi_filter_deps="gpl"

  3156. ocr_filter_deps="libtesseract"

  3157. ocv_filter_deps="libopencv"

  3158. owdenoise_filter_deps="gpl"

  3159. pan_filter_deps="swresample"

  3160. perspective_filter_deps="gpl"

  3161. phase_filter_deps="gpl"

  3162. pp7_filter_deps="gpl"

  3163. pp_filter_deps="gpl postproc"

  3164. pullup_filter_deps="gpl"

  3165. removelogo_filter_deps="avcodec avformat swscale"

  3166. repeatfields_filter_deps="gpl"

  3167. resample_filter_deps="avresample"

  3168. rubberband_filter_deps="librubberband"

  3169. sab_filter_deps="gpl swscale"

  3170. scale2ref_filter_deps="swscale"

  3171. scale_filter_deps="swscale"

  3172. scale_qsv_filter_deps="libmfx"

  3173. select_filter_select="pixelutils"

  3174. showcqt_filter_deps="avcodec avformat swscale"

  3175. showcqt_filter_select="fft"

  3176. showfreqs_filter_deps="avcodec"

  3177. showfreqs_filter_select="fft"

  3178. showspectrum_filter_deps="avcodec"

  3179. showspectrum_filter_select="fft"

  3180. showspectrumpic_filter_deps="avcodec"

  3181. showspectrumpic_filter_select="fft"

  3182. signature_filter_deps="gpl avcodec avformat"

  3183. smartblur_filter_deps="gpl swscale"

  3184. sofalizer_filter_deps="libmysofa avcodec"

  3185. sofalizer_filter_select="fft"

  3186. spectrumsynth_filter_deps="avcodec"

  3187. spectrumsynth_filter_select="fft"

  3188. spp_filter_deps="gpl avcodec"

  3189. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3190. stereo3d_filter_deps="gpl"

  3191. subtitles_filter_deps="avformat avcodec libass"

  3192. super2xsai_filter_deps="gpl"

  3193. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3194. tinterlace_filter_deps="gpl"

  3195. tinterlace_merge_test_deps="tinterlace_filter"

  3196. tinterlace_pad_test_deps="tinterlace_filter"

  3197. uspp_filter_deps="gpl avcodec"

  3198. vaguedenoiser_filter_deps="gpl"

  3199. vidstabdetect_filter_deps="libvidstab"

  3200. vidstabtransform_filter_deps="libvidstab"

  3201. libvmaf_filter_deps="libvmaf"

  3202. zmq_filter_deps="libzmq"

  3203. zoompan_filter_deps="swscale"

  3204. zscale_filter_deps="libzimg"

  3205. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3206. 

  3207. # examples

  3208. avio_dir_cmd_deps="avformat avutil"

  3209. avio_reading_deps="avformat avcodec avutil"

  3210. decode_audio_example_deps="avcodec avutil"

  3211. decode_video_example_deps="avcodec avutil"

  3212. demuxing_decoding_example_deps="avcodec avformat avutil"

  3213. encode_audio_example_deps="avcodec avutil"

  3214. encode_video_example_deps="avcodec avutil"

  3215. extract_mvs_example_deps="avcodec avformat avutil"

  3216. filter_audio_example_deps="avfilter avutil"

  3217. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3218. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3219. http_multiclient_example_deps="avformat avutil fork"

  3220. hw_decode_example_deps="avcodec avformat avutil"

  3221. metadata_example_deps="avformat avutil"

  3222. muxing_example_deps="avcodec avformat avutil swscale"

  3223. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3224. remuxing_example_deps="avcodec avformat avutil"

  3225. resampling_audio_example_deps="avutil swresample"

  3226. scaling_video_example_deps="avutil swscale"

  3227. transcode_aac_example_deps="avcodec avformat swresample"

  3228. transcoding_example_deps="avfilter avcodec avformat avutil"

  3229. 

  3230. # libraries, in linking order

  3231. avcodec_deps="avutil"

  3232. avcodec_select="null_bsf"

  3233. avdevice_deps="avformat avcodec avutil"

  3234. avfilter_deps="avutil"

  3235. avformat_deps="avcodec avutil"

  3236. avresample_deps="avutil"

  3237. postproc_deps="avutil gpl"

  3238. swresample_deps="avutil"

  3239. swscale_deps="avutil"

  3240. 

  3241. # programs

  3242. ffmpeg_deps="avcodec avfilter avformat swresample"

  3243. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3244.                null_filter

  3245.                trim_filter"

  3246. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3247. ffplay_extralibs='$sdl2_extralibs'

  3248. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3249. ffprobe_deps="avcodec avformat"

  3250. ffserver_deps="avformat fork sarestart"

  3251. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3252. 

  3253. # documentation

  3254. podpages_deps="perl"

  3255. manpages_deps="perl pod2man"

  3256. htmlpages_deps="perl"

  3257. htmlpages_deps_any="makeinfo_html texi2html"

  3258. txtpages_deps="perl makeinfo"

  3259. doc_deps_any="manpages htmlpages podpages txtpages"

  3260. 

  3261. # default parameters

  3262. 

  3263. logfile="ffbuild/config.log"

  3264. 

  3265. # installation paths

  3266. prefix_default="/usr/local"

  3267. bindir_default='${prefix}/bin'

  3268. datadir_default='${prefix}/share/ffmpeg'

  3269. docdir_default='${prefix}/share/doc/ffmpeg'

  3270. incdir_default='${prefix}/include'

  3271. libdir_default='${prefix}/lib'

  3272. mandir_default='${prefix}/share/man'

  3273. 

  3274. # toolchain

  3275. ar_default="ar"

  3276. cc_default="gcc"

  3277. cxx_default="g++"

  3278. host_cc_default="gcc"

  3279. doxygen_default="doxygen"

  3280. install="install"

  3281. ln_s_default="ln -s -f"

  3282. nm_default="nm -g"

  3283. pkg_config_default=pkg-config

  3284. ranlib_default="ranlib"

  3285. strip_default="strip"

  3286. version_script='--version-script'

  3287. x86asmexe_default="nasm"

  3288. windres_default="windres"

  3289. nvcc_default="nvcc"

  3290. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3291. 

  3292. # OS

  3293. target_os_default=$(tolower $(uname -s))

  3294. host_os=$target_os_default

  3295. 

  3296. # machine

  3297. if test "$target_os_default" = aix; then

  3298.     arch_default=$(uname -p)

  3299.     strip_default="strip -X32_64"

  3300. else

  3301.     arch_default=$(uname -m)

  3302. fi

  3303. cpu="generic"

  3304. intrinsics="none"

  3305. 

  3306. # configurable options

  3307. enable $PROGRAM_LIST

  3308. enable $DOCUMENT_LIST

  3309. enable $EXAMPLE_LIST

  3310. enable $(filter_out avresample $LIBRARY_LIST)

  3311. enable stripping

  3312. 

  3313. enable asm

  3314. enable debug

  3315. enable doc

  3316. enable faan faandct faanidct

  3317. enable optimizations

  3318. enable runtime_cpudetect

  3319. enable safe_bitstream_reader

  3320. enable static

  3321. enable swscale_alpha

  3322. enable valgrind_backtrace

  3323. 

  3324. sws_max_filter_size_default=256

  3325. set_default sws_max_filter_size

  3326. 

  3327. # build settings

  3328. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3329. LIBPREF="lib"

  3330. LIBSUF=".a"

  3331. FULLNAME='$(NAME)$(BUILDSUF)'

  3332. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3333. SLIBPREF="lib"

  3334. SLIBSUF=".so"

  3335. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3336. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3337. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3338. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3339. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3340. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3341. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3342. 

  3343. asflags_filter=echo

  3344. cflags_filter=echo

  3345. ldflags_filter=echo

  3346. 

  3347. AS_C='-c'

  3348. AS_O='-o $@'

  3349. CC_C='-c'

  3350. CC_E='-E -o $@'

  3351. CC_O='-o $@'

  3352. CXX_C='-c'

  3353. CXX_O='-o $@'

  3354. OBJCC_C='-c'

  3355. OBJCC_E='-E -o $@'

  3356. OBJCC_O='-o $@'

  3357. X86ASM_O='-o $@'

  3358. LD_O='-o $@'

  3359. LD_LIB='-l%'

  3360. LD_PATH='-L'

  3361. HOSTCC_C='-c'

  3362. HOSTCC_E='-E -o $@'

  3363. HOSTCC_O='-o $@'

  3364. HOSTLD_O='-o $@'

  3365. NVCC_C='-c'

  3366. NVCC_O='-o $@'

  3367. 

  3368. host_extralibs='-lm'

  3369. host_cflags_filter=echo

  3370. host_ldflags_filter=echo

  3371. 

  3372. target_path='$(CURDIR)'

  3373. 

  3374. # since the object filename is not given with the -MM flag, the compiler

  3375. # is only able to print the basename, and we must add the path ourselves

  3376. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3377. DEPFLAGS='-MM'

  3378. 

  3379. mkdir -p ffbuild

  3380. 

  3381. # find source path

  3382. if test -f configure; then

  3383.     source_path=.

  3384. else

  3385.     source_path=$(cd $(dirname "$0"); pwd)

  3386.     case "$source_path" in

  3387.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3388.     esac

  3389.     test -e "$source_path/config.h" &&

  3390.         die "Out of tree builds are impossible with config.h in source dir."

  3391. fi

  3392. 

  3393. for v in "$@"; do

  3394.     r=${v#*=}

  3395.     l=${v%"$r"}

  3396.     r=$(sh_quote "$r")

  3397.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3398. done

  3399. 

  3400. find_things(){

  3401.     thing=$1

  3402.     pattern=$2

  3403.     file=$source_path/$3

  3404.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3405. }

  3406. 

  3407. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3408. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3409. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3410. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3411. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3412. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3413. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3414. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3415. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3416. 

  3417. find_things_extern(){

  3418.     thing=$1

  3419.     pattern=$2

  3420.     file=$source_path/$3

  3421.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3422. }

  3423. 

  3424. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3425. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3426. 

  3427. ALL_COMPONENTS="

  3428.     $BSF_LIST

  3429.     $DECODER_LIST

  3430.     $DEMUXER_LIST

  3431.     $ENCODER_LIST

  3432.     $FILTER_LIST

  3433.     $HWACCEL_LIST

  3434.     $INDEV_LIST

  3435.     $MUXER_LIST

  3436.     $OUTDEV_LIST

  3437.     $PARSER_LIST

  3438.     $PROTOCOL_LIST

  3439. "

  3440. 

  3441. for n in $COMPONENT_LIST; do

  3442.     v=$(toupper ${n%s})_LIST

  3443.     eval enable \$$v

  3444.     eval ${n}_if_any="\$$v"

  3445. done

  3446. 

  3447. enable $ARCH_EXT_LIST

  3448. 

  3449. die_unknown(){

  3450.     echo "Unknown option \"$1\"."

  3451.     echo "See $0 --help for available options."

  3452.     exit 1

  3453. }

  3454. 

  3455. print_in_columns() {

  3456.     cols=$(expr $ncols / 24)

  3457.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3458. }

  3459. 

  3460. show_list() {

  3461.     suffix=_$1

  3462.     shift

  3463.     echo $* | sed s/$suffix//g | print_in_columns

  3464.     exit 0

  3465. }

  3466. 

  3467. rand_list(){

  3468.     IFS=', '

  3469.     set -- $*

  3470.     unset IFS

  3471.     for thing; do

  3472.         comp=${thing%:*}

  3473.         prob=${thing#$comp}

  3474.         prob=${prob#:}

  3475.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3476.         echo "prob ${prob:-0.5}"

  3477.         printf '%s\n' $comp

  3478.     done

  3479. }

  3480. 

  3481. do_random(){

  3482.     action=$1

  3483.     shift

  3484.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3485.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3486. }

  3487. 

  3488. for opt do

  3489.     optval="${opt#*=}"

  3490.     case "$opt" in

  3491.         --extra-ldflags=*)

  3492.             add_ldflags $optval

  3493.         ;;

  3494.         --extra-ldexeflags=*)

  3495.             add_ldexeflags $optval

  3496.         ;;

  3497.         --extra-ldlibflags=*)

  3498.             add_ldlibflags $optval

  3499.         ;;

  3500.         --extra-libs=*)

  3501.             add_extralibs $optval

  3502.         ;;

  3503.         --disable-devices)

  3504.             disable $INDEV_LIST $OUTDEV_LIST

  3505.         ;;

  3506.         --enable-debug=*)

  3507.             debuglevel="$optval"

  3508.         ;;

  3509.         --disable-programs)

  3510.             disable $PROGRAM_LIST

  3511.         ;;

  3512.         --disable-everything)

  3513.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3514.         ;;

  3515.         --disable-all)

  3516.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3517.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3518.             enable avutil

  3519.         ;;

  3520.         --enable-random|--disable-random)

  3521.             action=${opt%%-random}

  3522.             do_random ${action#--} $COMPONENT_LIST

  3523.         ;;

  3524.         --enable-random=*|--disable-random=*)

  3525.             action=${opt%%-random=*}

  3526.             do_random ${action#--} $optval

  3527.         ;;

  3528.         --enable-sdl)

  3529.             enable sdl2

  3530.         ;;

  3531.         --enable-*=*|--disable-*=*)

  3532.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3533.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3534.             eval list=\$$(toupper $thing)_LIST

  3535.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3536.             list=$(filter "$name" $list)

  3537.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3538.             $action $list

  3539.         ;;

  3540.         --enable-yasm|--disable-yasm)

  3541.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3542.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3543.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3544.         ;;

  3545.         --yasmexe=*)

  3546.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3547.                  "removed in the future. Use --x86asmexe instead."

  3548.             x86asmexe="$optval"

  3549.         ;;

  3550.         --enable-?*|--disable-?*)

  3551.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3552.             if is_in $option $COMPONENT_LIST; then

  3553.                 test $action = disable && action=unset

  3554.                 eval $action \$$(toupper ${option%s})_LIST

  3555.             elif is_in $option $CMDLINE_SELECT; then

  3556.                 $action $option

  3557.             else

  3558.                 die_unknown $opt

  3559.             fi

  3560.         ;;

  3561.         --list-*)

  3562.             NAME="${opt#--list-}"

  3563.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3564.             NAME=${NAME%s}

  3565.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3566.         ;;

  3567.         --help|-h) show_help

  3568.         ;;

  3569.         --quiet|-q) quiet=yes

  3570.         ;;

  3571.         --fatal-warnings) enable fatal_warnings

  3572.         ;;

  3573.         --libfuzzer=*)

  3574.             libfuzzer_path="$optval"

  3575.         ;;

  3576.         *)

  3577.             optname="${opt%%=*}"

  3578.             optname="${optname#--}"

  3579.             optname=$(echo "$optname" | sed 's/-/_/g')

  3580.             if is_in $optname $CMDLINE_SET; then

  3581.                 eval $optname='$optval'

  3582.             elif is_in $optname $CMDLINE_APPEND; then

  3583.                 append $optname "$optval"

  3584.             else

  3585.                 die_unknown $opt

  3586.             fi

  3587.         ;;

  3588.     esac

  3589. done

  3590. 

  3591. for e in $env; do

  3592.     eval "export $e"

  3593. done

  3594. 

  3595. if disabled autodetect; then

  3596. 

  3597.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3598.     # for the iconv from the libc.

  3599.     disabled iconv || enable libc_iconv

  3600. 

  3601.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3602.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3603. fi

  3604. # Mark specifically enabled, but normally autodetected libraries as requested.

  3605. for lib in $AUTODETECT_LIBS; do

  3606.     enabled $lib && request $lib

  3607. done

  3608. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3609. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3610. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3611. 

  3612. disabled logging && logfile=/dev/null

  3613. 

  3614. die_license_disabled() {

  3615.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3616. }

  3617. 

  3618. die_license_disabled_gpl() {

  3619.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3620. }

  3621. 

  3622. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3623. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3624. 

  3625. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3626. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3627. 

  3628. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3629. 

  3630. # Disable all the library-specific components if the library itself

  3631. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3632. 

  3633. disable_components(){

  3634.     disabled ${1} && disable $(

  3635.         eval components="\$$(toupper ${1})_COMPONENTS"

  3636.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3637.     )

  3638. }

  3639. 

  3640. map 'disable_components $v' $LIBRARY_LIST

  3641. 

  3642. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3643. set >> $logfile

  3644. 

  3645. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3646. 

  3647. enabled ossfuzz && {

  3648.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3649.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3650. }

  3651. 

  3652. case "$toolchain" in

  3653.     *-asan)

  3654.         cc_default="${toolchain%-asan}"

  3655.         add_cflags  -fsanitize=address

  3656.         add_ldflags -fsanitize=address

  3657.     ;;

  3658.     *-msan)

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

  3660.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3661.         add_ldflags -fsanitize=memory

  3662.     ;;

  3663.     *-tsan)

  3664.         cc_default="${toolchain%-tsan}"

  3665.         add_cflags  -fsanitize=thread -fPIE

  3666.         add_ldflags -fsanitize=thread -pie

  3667.         case "$toolchain" in

  3668.             gcc-tsan)

  3669.                 add_cflags  -fPIC

  3670.                 add_ldflags -fPIC

  3671.                 ;;

  3672.         esac

  3673.     ;;

  3674.     *-usan)

  3675.         cc_default="${toolchain%-usan}"

  3676.         add_cflags  -fsanitize=undefined

  3677.         add_ldflags -fsanitize=undefined

  3678.     ;;

  3679.     valgrind-*)

  3680.         target_exec_default="valgrind"

  3681.         case "$toolchain" in

  3682.             valgrind-massif)

  3683.                 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"

  3684.                 ;;

  3685.             valgrind-memcheck)

  3686.                 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"

  3687.                 ;;

  3688.         esac

  3689.     ;;

  3690.     msvc)

  3691.         # Check whether the current MSVC version needs the C99 converter.

  3692.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3693.         # support enough of C99 to build ffmpeg. Default to the new

  3694.         # behaviour if the regexp was unable to match anything, since this

  3695.         # successfully parses the version number of existing supported

  3696.         # versions that require the converter (MSVC 2010 and 2012).

  3697.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3698.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3699.             cc_default="cl"

  3700.             cxx_default="cl"

  3701.         else

  3702.             cc_default="c99wrap cl"

  3703.             cxx_default="c99wrap cl"

  3704.         fi

  3705.         ld_default="$source_path/compat/windows/mslink"

  3706.         nm_default="dumpbin -symbols"

  3707.         ar_default="lib"

  3708.         case "$arch" in

  3709.         arm*)

  3710.             as_default="armasm"

  3711.             ;;

  3712.         esac

  3713.         target_os_default="win32"

  3714.         # Use a relative path for TMPDIR. This makes sure all the

  3715.         # ffconf temp files are written with a relative path, avoiding

  3716.         # issues with msys/win32 path conversion for MSVC parameters

  3717.         # such as -Fo<file> or -out:<file>.

  3718.         TMPDIR=.

  3719.     ;;

  3720.     icl)

  3721.         cc_default="icl"

  3722.         ld_default="xilink"

  3723.         nm_default="dumpbin -symbols"

  3724.         ar_default="xilib"

  3725.         target_os_default="win32"

  3726.         TMPDIR=.

  3727.     ;;

  3728.     gcov)

  3729.         add_cflags  -fprofile-arcs -ftest-coverage

  3730.         add_ldflags -fprofile-arcs -ftest-coverage

  3731.     ;;

  3732.     llvm-cov)

  3733.         add_cflags -fprofile-arcs -ftest-coverage

  3734.         add_ldflags --coverage

  3735.     ;;

  3736.     hardened)

  3737.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3738.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3739.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3740.         add_cflags   -fPIE

  3741.         add_ldexeflags -fPIE -pie

  3742.     ;;

  3743.     ?*)

  3744.         die "Unknown toolchain $toolchain"

  3745.     ;;

  3746. esac

  3747. 

  3748. test -n "$cross_prefix" && enable cross_compile

  3749. 

  3750. if enabled cross_compile; then

  3751.     test -n "$arch" && test -n "$target_os" ||

  3752.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3753. fi

  3754. 

  3755. ar_default="${cross_prefix}${ar_default}"

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

  3757. cxx_default="${cross_prefix}${cxx_default}"

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

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

  3760. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3761.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3762. else

  3763.     ranlib_default="${cross_prefix}${ranlib_default}"

  3764. fi

  3765. strip_default="${cross_prefix}${strip_default}"

  3766. windres_default="${cross_prefix}${windres_default}"

  3767. 

  3768. sysinclude_default="${sysroot}/usr/include"

  3769. 

  3770. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3771.     target_exec target_os x86asmexe nvcc

  3772. enabled cross_compile || host_cc_default=$cc

  3773. set_default host_cc

  3774. 

  3775. pkg_config_fail_message=""

  3776. if ! $pkg_config --version >/dev/null 2>&1; then

  3777.     warn "$pkg_config not found, library detection may fail."

  3778.     pkg_config=false

  3779. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3780.     pkg_config_fail_message="

  3781. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3782. fi

  3783. 

  3784. if test $doxygen != $doxygen_default && \

  3785.   ! $doxygen --version >/dev/null 2>&1; then

  3786.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3787. fi

  3788. 

  3789. exesuf() {

  3790.     case $1 in

  3791.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3792.     esac

  3793. }

  3794. 

  3795. EXESUF=$(exesuf $target_os)

  3796. HOSTEXESUF=$(exesuf $host_os)

  3797. 

  3798. # set temporary file name

  3799. : ${TMPDIR:=$TEMPDIR}

  3800. : ${TMPDIR:=$TMP}

  3801. : ${TMPDIR:=/tmp}

  3802. 

  3803. if [ -n "$tempprefix" ] ; then

  3804.     mktemp(){

  3805.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3806.         echo "$tmpname"

  3807.         mkdir "$tmpname"

  3808.     }

  3809. elif ! check_cmd mktemp -u XXXXXX; then

  3810.     # simple replacement for missing mktemp

  3811.     # NOT SAFE FOR GENERAL USE

  3812.     mktemp(){

  3813.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3814.         echo "$tmpname"

  3815.         mkdir "$tmpname"

  3816.     }

  3817. fi

  3818. 

  3819. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3820.     die "Unable to create temporary directory in $TMPDIR."

  3821. 

  3822. tmpfile(){

  3823.     tmp="${FFTMPDIR}/test"$2

  3824.     (set -C; exec > $tmp) 2> /dev/null ||

  3825.         die "Unable to create temporary file in $FFTMPDIR."

  3826.     eval $1=$tmp

  3827. }

  3828. 

  3829. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3830. trap 'exit 2' INT

  3831. 

  3832. tmpfile TMPASM .asm

  3833. tmpfile TMPC   .c

  3834. tmpfile TMPCPP .cpp

  3835. tmpfile TMPE   $EXESUF

  3836. tmpfile TMPH   .h

  3837. tmpfile TMPM   .m

  3838. tmpfile TMPO   .o

  3839. tmpfile TMPS   .S

  3840. tmpfile TMPSH  .sh

  3841. tmpfile TMPV   .ver

  3842. 

  3843. unset -f mktemp

  3844. 

  3845. chmod +x $TMPE

  3846. 

  3847. # make sure we can execute files in $TMPDIR

  3848. cat > $TMPSH 2>> $logfile <<EOF

  3849. #! /bin/sh

  3850. EOF

  3851. chmod +x $TMPSH >> $logfile 2>&1

  3852. if ! $TMPSH >> $logfile 2>&1; then

  3853.     cat <<EOF

  3854. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3855. variable to another directory and make sure that it is not mounted noexec.

  3856. EOF

  3857.     die "Sanity test failed."

  3858. fi

  3859. 

  3860. armasm_flags(){

  3861.     for flag; do

  3862.         case $flag in

  3863.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3864.             # be passed to gas-preprocessor

  3865.             -M[TD]*)                                            ;;

  3866.             *)                  echo $flag                      ;;

  3867.         esac

  3868.    done

  3869. }

  3870. 

  3871. ccc_flags(){

  3872.     for flag; do

  3873.         case $flag in

  3874.             -std=c99)           echo -c99                       ;;

  3875.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3876.             -mieee)             echo -ieee                      ;;

  3877.             -O*|-fast)          echo $flag                      ;;

  3878.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3879.             -g)                 echo -g3                        ;;

  3880.             -Wall)              echo -msg_enable level2         ;;

  3881.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3882.             -Wl,*)              echo $flag                      ;;

  3883.             -f*|-W*)                                            ;;

  3884.             *)                  echo $flag                      ;;

  3885.         esac

  3886.    done

  3887. }

  3888. 

  3889. cparser_flags(){

  3890.     for flag; do

  3891.         case $flag in

  3892.             -Wno-switch)             echo -Wno-switch-enum ;;

  3893.             -Wno-format-zero-length) ;;

  3894.             -Wdisabled-optimization) ;;

  3895.             -Wno-pointer-sign)       echo -Wno-other ;;

  3896.             *)                       echo $flag ;;

  3897.         esac

  3898.     done

  3899. }

  3900. 

  3901. msvc_common_flags(){

  3902.     for flag; do

  3903.         case $flag in

  3904.             # In addition to specifying certain flags under the compiler

  3905.             # specific filters, they must be specified here as well or else the

  3906.             # generic catch all at the bottom will print the original flag.

  3907.             -Wall)                ;;

  3908.             -Wextra)              ;;

  3909.             -std=c99)             ;;

  3910.             # Common flags

  3911.             -fomit-frame-pointer) ;;

  3912.             -g)                   echo -Z7 ;;

  3913.             -fno-math-errno)      ;;

  3914.             -fno-common)          ;;

  3915.             -fno-signed-zeros)    ;;

  3916.             -fPIC)                ;;

  3917.             -mthumb)              ;;

  3918.             -march=*)             ;;

  3919.             -lz)                  echo zlib.lib ;;

  3920.             -lx264)               echo libx264.lib ;;

  3921.             -lstdc++)             ;;

  3922.             -l*)                  echo ${flag#-l}.lib ;;

  3923.             -LARGEADDRESSAWARE)   echo $flag ;;

  3924.             -L*)                  echo -libpath:${flag#-L} ;;

  3925.             *)                    echo $flag ;;

  3926.         esac

  3927.     done

  3928. }

  3929. 

  3930. msvc_flags(){

  3931.     msvc_common_flags "$@"

  3932.     for flag; do

  3933.         case $flag in

  3934.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  3935.                                        -wd4554 ;;

  3936.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3937.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3938.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3939.                                        -wd4307 \

  3940.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  3941.         esac

  3942.     done

  3943. }

  3944. 

  3945. icl_flags(){

  3946.     msvc_common_flags "$@"

  3947.     for flag; do

  3948.         case $flag in

  3949.             # Despite what Intel's documentation says -Wall, which is supported

  3950.             # on Windows, does enable remarks so disable them here.

  3951.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3952.             -std=c99)             echo -Qstd=c99 ;;

  3953.             -flto)                echo -ipo ;;

  3954.         esac

  3955.     done

  3956. }

  3957. 

  3958. icc_flags(){

  3959.     for flag; do

  3960.         case $flag in

  3961.             -flto)                echo -ipo ;;

  3962.             *)                    echo $flag ;;

  3963.         esac

  3964.     done

  3965. }

  3966. 

  3967. pgi_flags(){

  3968.     for flag; do

  3969.         case $flag in

  3970.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3971.             -fomit-frame-pointer) echo -Mnoframe ;;

  3972.             -g)                   echo -gopt ;;

  3973.             *)                    echo $flag ;;

  3974.         esac

  3975.     done

  3976. }

  3977. 

  3978. suncc_flags(){

  3979.     for flag; do

  3980.         case $flag in

  3981.             -march=*|-mcpu=*)

  3982.                 case "${flag#*=}" in

  3983.                     native)                   echo -xtarget=native       ;;

  3984.                     v9|niagara)               echo -xarch=sparc          ;;

  3985.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3986.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3987.                     i586|pentium)             echo -xchip=pentium        ;;

  3988.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3989.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3990.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3991.                     pentium4*)          echo -xtarget=pentium4           ;;

  3992.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3993.                     *-sse3)             echo -xarch=sse3                 ;;

  3994.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3995.                     bonnell)                   echo -xarch=ssse3         ;;

  3996.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3997.                     westmere)                  echo -xtarget=westmere    ;;

  3998.                     silvermont)                echo -xarch=sse4_2        ;;

  3999.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  4000.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4001.                                                echo -xarch=avx           ;;

  4002.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4003.                     btver1)                    echo -xarch=amdsse4a      ;;

  4004.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4005.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4006.                     k8|opteron|athlon64|athlon-fx)

  4007.                                                echo -xarch=sse2a         ;;

  4008.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4009.                 esac

  4010.                 ;;

  4011.             -std=c99)             echo -xc99              ;;

  4012.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4013.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4014.             -W*,*)                echo $flag              ;;

  4015.             -f*-*|-W*|-mimpure-text)                      ;;

  4016.             -shared)              echo -G                 ;;

  4017.             *)                    echo $flag              ;;

  4018.         esac

  4019.     done

  4020. }

  4021. 

  4022. tms470_flags(){

  4023.     for flag; do

  4024.         case $flag in

  4025.             -march=*|-mcpu=*)

  4026.                 case "${flag#*=}" in

  4027.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  4028.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  4029.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  4030.                     armv6*|arm11*)          echo -mv=6   ;;

  4031.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  4032.                                             echo -mv=5e  ;;

  4033.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  4034.                 esac

  4035.                 ;;

  4036.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  4037.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  4038.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  4039.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  4040.             -msoft-float)   echo --float_support=vfplib       ;;

  4041.             -O[0-3]|-mf=*)  echo $flag                        ;;

  4042.             -g)             echo -g -mn                       ;;

  4043.             -pds=*)         echo $flag                        ;;

  4044.             -D*|-I*)        echo $flag                        ;;

  4045.             --gcc|--abi=*)  echo $flag                        ;;

  4046.             -me)            echo $flag                        ;;

  4047.         esac

  4048.     done

  4049. }

  4050. 

  4051. probe_cc(){

  4052.     pfx=$1

  4053.     _cc=$2

  4054.     first=$3

  4055. 

  4056.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4057.     unset _ld_o _ldflags _ld_lib _ld_path

  4058.     unset _depflags _DEPCMD _DEPFLAGS

  4059.     _flags_filter=echo

  4060. 

  4061.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4062.         true # no-op to avoid reading stdin in following checks

  4063.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4064.         _type=llvm_gcc

  4065.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4066.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4067.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4068.         _cflags_speed='-O3'

  4069.         _cflags_size='-Os'

  4070.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4071.         _type=gcc

  4072.         gcc_version=$($_cc --version | head -n1)

  4073.         gcc_basever=$($_cc -dumpversion)

  4074.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4075.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4076.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4077.         case $gcc_basever in

  4078.             2) ;;

  4079.             2.*) ;;

  4080.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4081.         esac

  4082.         if [ "$first" = true ]; then

  4083.             case $gcc_basever in

  4084.                 4.2*)

  4085.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4086.             esac

  4087.         fi

  4088.         _cflags_speed='-O3'

  4089.         _cflags_size='-Os'

  4090.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4091.         _type=icc

  4092.         _ident=$($_cc --version | head -n1)

  4093.         _depflags='-MMD'

  4094.         _cflags_speed='-O3'

  4095.         _cflags_size='-Os'

  4096.         _cflags_noopt='-O1'

  4097.         _flags_filter=icc_flags

  4098.     elif $_cc -v 2>&1 | grep -q xlc; then

  4099.         _type=xlc

  4100.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4101.         _cflags_speed='-O5'

  4102.         _cflags_size='-O5 -qcompact'

  4103.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  4104.         _type=ccc

  4105.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  4106.         _DEPFLAGS='-M'

  4107.         _cflags_speed='-fast'

  4108.         _cflags_size='-O1'

  4109.         _flags_filter=ccc_flags

  4110.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4111.         test -d "$sysroot" || die "No valid sysroot specified."

  4112.         _type=armcc

  4113.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4114.         armcc_conf="$PWD/armcc.conf"

  4115.         $_cc --arm_linux_configure                 \

  4116.              --arm_linux_config_file="$armcc_conf" \

  4117.              --configure_sysroot="$sysroot"        \

  4118.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4119.              die "Error creating armcc configuration file."

  4120.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4121.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4122.         as_default="${cross_prefix}gcc"

  4123.         _depflags='-MMD'

  4124.         _cflags_speed='-O3'

  4125.         _cflags_size='-Os'

  4126.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  4127.         _type=tms470

  4128.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  4129.         _flags='--gcc --abi=eabi -me'

  4130.         _cc_e='-ppl -fe=$@'

  4131.         _cc_o='-fe=$@'

  4132.         _depflags='-ppa -ppd=$(@:.o=.d)'

  4133.         _cflags_speed='-O3 -mf=5'

  4134.         _cflags_size='-O3 -mf=2'

  4135.         _flags_filter=tms470_flags

  4136.     elif $_cc -v 2>&1 | grep -q clang; then

  4137.         _type=clang

  4138.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4139.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4140.         _cflags_speed='-O3'

  4141.         _cflags_size='-Oz'

  4142.     elif $_cc -V 2>&1 | grep -q Sun; then

  4143.         _type=suncc

  4144.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4145.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4146.         _DEPFLAGS='-xM1 -xc99'

  4147.         _ldflags='-std=c99'

  4148.         _cflags_speed='-O5'

  4149.         _cflags_size='-O5 -xspace'

  4150.         _flags_filter=suncc_flags

  4151.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4152.         _type=pathscale

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

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

  4155.         _cflags_speed='-O2'

  4156.         _cflags_size='-Os'

  4157.         _flags_filter='filter_out -Wdisabled-optimization'

  4158.     elif $_cc -v 2>&1 | grep -q Open64; then

  4159.         _type=open64

  4160.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4161.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4162.         _cflags_speed='-O2'

  4163.         _cflags_size='-Os'

  4164.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4165.     elif $_cc -V 2>&1 | grep -q Portland; then

  4166.         _type=pgi

  4167.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  4168.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4169.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4170.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4171.         _cflags_noopt="-O"

  4172.         _flags_filter=pgi_flags

  4173.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4174.         _type=armasm

  4175.         _ident=$($_cc | head -n1)

  4176.         # 4509: "This form of conditional instruction is deprecated"

  4177.         _flags="-nologo -ignore 4509"

  4178.         _flags_filter=armasm_flags

  4179.     elif $_cc 2>&1 | grep -q Intel; then

  4180.         _type=icl

  4181.         _ident=$($_cc 2>&1 | head -n1)

  4182.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4183.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4184.         # versions (tested) as well.

  4185.         _cflags_speed="-O2"

  4186.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4187.         if $_cc 2>&1 | grep -q Linker; then

  4188.             _ld_o='-out:$@'

  4189.         else

  4190.             _ld_o='-Fe$@'

  4191.         fi

  4192.         _cc_o='-Fo$@'

  4193.         _cc_e='-P'

  4194.         _flags_filter=icl_flags

  4195.         _ld_lib='lib%.a'

  4196.         _ld_path='-libpath:'

  4197.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4198.         _flags='-nologo -Qdiag-error:4044,10157'

  4199.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4200.         # with MSVC which enables it by default.

  4201.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4202.         disable stripping

  4203.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4204.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4205.         # the -? parameter gives the help output which contains an identifyable

  4206.         # string, while it gives an error in other modes.

  4207.         _type=lld-link

  4208.         # The link.exe mode doesn't have a switch for getting the version,

  4209.         # but we can force it back to gnu mode and get the version from there.

  4210.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4211.         _ld_o='-out:$@'

  4212.         _flags_filter=msvc_flags

  4213.         _ld_lib='lib%.a'

  4214.         _ld_path='-libpath:'

  4215.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4216.         _type=msvc

  4217.         _ident=$($_cc 2>&1 | head -n1)

  4218.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4219.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4220.         _cflags_speed="-O2"

  4221.         _cflags_size="-O1"

  4222.         _cflags_noopt="-O1"

  4223.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4224.             _ld_o='-out:$@'

  4225.         else

  4226.             _ld_o='-Fe$@'

  4227.         fi

  4228.         _cc_o='-Fo$@'

  4229.         _cc_e='-P -Fi$@'

  4230.         _flags_filter=msvc_flags

  4231.         _ld_lib='lib%.a'

  4232.         _ld_path='-libpath:'

  4233.         _flags='-nologo'

  4234.         disable stripping

  4235.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4236.         _type=cparser

  4237.         _ident=$($_cc --version | head -n1)

  4238.         _depflags='-MMD'

  4239.         _cflags_speed='-O4'

  4240.         _cflags_size='-O2'

  4241.         _flags_filter=cparser_flags

  4242.     fi

  4243. 

  4244.     eval ${pfx}_type=\$_type

  4245.     eval ${pfx}_ident=\$_ident

  4246. }

  4247. 

  4248. set_ccvars(){

  4249.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4250.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4251.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4252. 

  4253.     if [ -n "$_depflags" ]; then

  4254.         eval ${1}_DEPFLAGS=\$_depflags

  4255.     else

  4256.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4257.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4258.         eval DEP${1}FLAGS=\$_flags

  4259.     fi

  4260. }

  4261. 

  4262. probe_cc cc "$cc" "true"

  4263. cflags_filter=$_flags_filter

  4264. cflags_speed=$_cflags_speed

  4265. cflags_size=$_cflags_size

  4266. cflags_noopt=$_cflags_noopt

  4267. add_cflags $_flags $_cflags

  4268. cc_ldflags=$_ldflags

  4269. set_ccvars CC

  4270. set_ccvars CXX

  4271. 

  4272. probe_cc hostcc "$host_cc"

  4273. host_cflags_filter=$_flags_filter

  4274. host_cflags_speed=$_cflags_speed

  4275. add_host_cflags  $_flags $_cflags

  4276. set_ccvars HOSTCC

  4277. 

  4278. test -n "$cc_type" && enable $cc_type ||

  4279.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4280. 

  4281. : ${as_default:=$cc}

  4282. : ${objcc_default:=$cc}

  4283. : ${dep_cc_default:=$cc}

  4284. : ${ld_default:=$cc}

  4285. : ${host_ld_default:=$host_cc}

  4286. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4287. 

  4288. probe_cc as "$as"

  4289. asflags_filter=$_flags_filter

  4290. add_asflags $_flags $_cflags

  4291. set_ccvars AS

  4292. 

  4293. probe_cc objcc "$objcc"

  4294. objcflags_filter=$_flags_filter

  4295. add_objcflags $_flags $_cflags

  4296. set_ccvars OBJC

  4297. 

  4298. probe_cc ld "$ld"

  4299. ldflags_filter=$_flags_filter

  4300. add_ldflags $_flags $_ldflags

  4301. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4302. LD_O=${_ld_o-$LD_O}

  4303. LD_LIB=${_ld_lib-$LD_LIB}

  4304. LD_PATH=${_ld_path-$LD_PATH}

  4305. 

  4306. probe_cc hostld "$host_ld"

  4307. host_ldflags_filter=$_flags_filter

  4308. add_host_ldflags $_flags $_ldflags

  4309. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4310. 

  4311. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4312.     probe_cc depcc "$dep_cc"

  4313.     CCDEP=${_DEPCMD:-$DEPCMD}

  4314.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4315.     DEPCCFLAGS=$_flags

  4316. fi

  4317. 

  4318. if $ar 2>&1 | grep -q Microsoft; then

  4319.     arflags="-nologo"

  4320.     ar_o='-out:$@'

  4321. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4322.     arflags="rq"

  4323.     ar_o='$@'

  4324. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4325.     arflags='-Xany -r -c'

  4326.     ar_o='$@'

  4327. elif $ar 2>&1 | grep -q "\[D\] "; then

  4328.     arflags="rcD"

  4329.     ar_o='$@'

  4330. else

  4331.     arflags="rc"

  4332.     ar_o='$@'

  4333. fi

  4334. 

  4335. add_cflags $extra_cflags

  4336. add_cxxflags $extra_cxxflags

  4337. add_objcflags $extra_objcflags

  4338. add_asflags $extra_cflags

  4339. 

  4340. if test -n "$sysroot"; then

  4341.     case "$cc_type" in

  4342.         gcc|llvm_gcc|clang)

  4343.             add_cppflags --sysroot="$sysroot"

  4344.             add_ldflags --sysroot="$sysroot"

  4345. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4346.             add_cppflags -isysroot "$sysroot"

  4347.             add_ldflags -isysroot "$sysroot"

  4348.         ;;

  4349.         tms470)

  4350.             add_cppflags -I"$sysinclude"

  4351.             add_ldflags  --sysroot="$sysroot"

  4352.         ;;

  4353.     esac

  4354. fi

  4355. 

  4356. if test "$cpu" = host; then

  4357.     enabled cross_compile &&

  4358.         die "--cpu=host makes no sense when cross-compiling."

  4359. 

  4360.     case "$cc_type" in

  4361.         gcc|llvm_gcc)

  4362.             check_native(){

  4363.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4364.                 sed -n "/cc1.*$1=/{

  4365.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4366.                             p

  4367.                             q

  4368.                         }" $TMPE

  4369.             }

  4370.             cpu=$(check_native -march || check_native -mcpu)

  4371.         ;;

  4372.         clang)

  4373.             check_native(){

  4374.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4375.                 sed -n "/cc1.*-target-cpu /{

  4376.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4377.                             p

  4378.                             q

  4379.                         }" $TMPE

  4380.             }

  4381.             cpu=$(check_native -march)

  4382.         ;;

  4383.     esac

  4384. 

  4385.     test "${cpu:-host}" = host &&

  4386.         die "--cpu=host not supported with compiler $cc"

  4387. fi

  4388. 

  4389. # Deal with common $arch aliases

  4390. case "$arch" in

  4391.     aarch64|arm64)

  4392.         arch="aarch64"

  4393.     ;;

  4394.     arm*|iPad*|iPhone*)

  4395.         arch="arm"

  4396.     ;;

  4397.     mips*|IP*)

  4398.         case "$arch" in

  4399.         *el)

  4400.             add_cppflags -EL

  4401.             add_ldflags -EL

  4402.         ;;

  4403.         *eb)

  4404.             add_cppflags -EB

  4405.             add_ldflags -EB

  4406.         ;;

  4407.         esac

  4408.         arch="mips"

  4409.     ;;

  4410.     parisc*|hppa*)

  4411.         arch="parisc"

  4412.     ;;

  4413.     "Power Macintosh"|ppc*|powerpc*)

  4414.         arch="ppc"

  4415.     ;;

  4416.     s390|s390x)

  4417.         arch="s390"

  4418.     ;;

  4419.     sh4|sh)

  4420.         arch="sh4"

  4421.     ;;

  4422.     sun4*|sparc*)

  4423.         arch="sparc"

  4424.     ;;

  4425.     tilegx|tile-gx)

  4426.         arch="tilegx"

  4427.     ;;

  4428.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4429.         arch="x86"

  4430.     ;;

  4431. esac

  4432. 

  4433. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4434. enable $arch

  4435. 

  4436. # Add processor-specific flags

  4437. if enabled aarch64; then

  4438. 

  4439.     case $cpu in

  4440.         armv*)

  4441.             cpuflags="-march=$cpu"

  4442.         ;;

  4443.         *)

  4444.             cpuflags="-mcpu=$cpu"

  4445.         ;;

  4446.     esac

  4447. 

  4448. elif enabled alpha; then

  4449. 

  4450.     cpuflags="-mcpu=$cpu"

  4451. 

  4452. elif enabled arm; then

  4453. 

  4454.     check_arm_arch() {

  4455.         check_cpp_condition stddef.h \

  4456.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4457.             $cpuflags

  4458.     }

  4459. 

  4460.     probe_arm_arch() {

  4461.         if   check_arm_arch 4;        then echo armv4

  4462.         elif check_arm_arch 4T;       then echo armv4t

  4463.         elif check_arm_arch 5;        then echo armv5

  4464.         elif check_arm_arch 5E;       then echo armv5e

  4465.         elif check_arm_arch 5T;       then echo armv5t

  4466.         elif check_arm_arch 5TE;      then echo armv5te

  4467.         elif check_arm_arch 5TEJ;     then echo armv5te

  4468.         elif check_arm_arch 6;        then echo armv6

  4469.         elif check_arm_arch 6J;       then echo armv6j

  4470.         elif check_arm_arch 6K;       then echo armv6k

  4471.         elif check_arm_arch 6Z;       then echo armv6z

  4472.         elif check_arm_arch 6ZK;      then echo armv6zk

  4473.         elif check_arm_arch 6T2;      then echo armv6t2

  4474.         elif check_arm_arch 7;        then echo armv7

  4475.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4476.         elif check_arm_arch 7S;       then echo armv7-a

  4477.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4478.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4479.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4480.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4481.         fi

  4482.     }

  4483. 

  4484.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4485. 

  4486.     case $cpu in

  4487.         armv*)

  4488.             cpuflags="-march=$cpu"

  4489.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4490.         ;;

  4491.         *)

  4492.             cpuflags="-mcpu=$cpu"

  4493.             case $cpu in

  4494.                 cortex-a*)                               subarch=armv7a  ;;

  4495.                 cortex-r*)                               subarch=armv7r  ;;

  4496.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4497.                 arm11*)                                  subarch=armv6   ;;

  4498.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4499.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4500.                 *)                             subarch=$(probe_arm_arch) ;;

  4501.             esac

  4502.         ;;

  4503.     esac

  4504. 

  4505.     case "$subarch" in

  4506.         armv5t*)    enable fast_clz                ;;

  4507.         armv[6-8]*)

  4508.             enable fast_clz

  4509.             disabled fast_unaligned || enable fast_unaligned

  4510.             ;;

  4511.     esac

  4512. 

  4513. elif enabled avr32; then

  4514. 

  4515.     case $cpu in

  4516.         ap7[02]0[0-2])

  4517.             subarch="avr32_ap"

  4518.             cpuflags="-mpart=$cpu"

  4519.         ;;

  4520.         ap)

  4521.             subarch="avr32_ap"

  4522.             cpuflags="-march=$cpu"

  4523.         ;;

  4524.         uc3[ab]*)

  4525.             subarch="avr32_uc"

  4526.             cpuflags="-mcpu=$cpu"

  4527.         ;;

  4528.         uc)

  4529.             subarch="avr32_uc"

  4530.             cpuflags="-march=$cpu"

  4531.         ;;

  4532.     esac

  4533. 

  4534. elif enabled bfin; then

  4535. 

  4536.     cpuflags="-mcpu=$cpu"

  4537. 

  4538. elif enabled mips; then

  4539. 

  4540.     cpuflags="-march=$cpu"

  4541. 

  4542.     if [ "$cpu" != "generic" ]; then

  4543.         disable mips32r2

  4544.         disable mips32r5

  4545.         disable mips64r2

  4546.         disable mips32r6

  4547.         disable mips64r6

  4548.         disable loongson2

  4549.         disable loongson3

  4550. 

  4551.         case $cpu in

  4552.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4553.                 enable mips32r2

  4554.                 disable msa

  4555.             ;;

  4556.             p5600|i6400|p6600)

  4557.                 disable mipsdsp

  4558.                 disable mipsdspr2

  4559.             ;;

  4560.             loongson*)

  4561.                 enable loongson2

  4562.                 enable loongson3

  4563.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4564.                 enable simd_align_16

  4565.                 enable fast_64bit

  4566.                 enable fast_clz

  4567.                 enable fast_cmov

  4568.                 enable fast_unaligned

  4569.                 disable aligned_stack

  4570.                 disable mipsfpu

  4571.                 disable mipsdsp

  4572.                 disable mipsdspr2

  4573.                 case $cpu in

  4574.                     loongson3*)

  4575.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4576.                     ;;

  4577.                     loongson2e)

  4578.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4579.                     ;;

  4580.                     loongson2f)

  4581.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4582.                     ;;

  4583.                 esac

  4584.             ;;

  4585.             *)

  4586.                 # Unknown CPU. Disable everything.

  4587.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4588.                 disable mipsfpu

  4589.                 disable mipsdsp

  4590.                 disable mipsdspr2

  4591.                 disable msa

  4592.                 disable mmi

  4593.             ;;

  4594.         esac

  4595. 

  4596.         case $cpu in

  4597.             24kc)

  4598.                 disable mipsfpu

  4599.                 disable mipsdsp

  4600.                 disable mipsdspr2

  4601.             ;;

  4602.             24kf*)

  4603.                 disable mipsdsp

  4604.                 disable mipsdspr2

  4605.             ;;

  4606.             24kec|34kc|1004kc)

  4607.                 disable mipsfpu

  4608.                 disable mipsdspr2

  4609.             ;;

  4610.             24kef*|34kf*|1004kf*)

  4611.                 disable mipsdspr2

  4612.             ;;

  4613.             74kc)

  4614.                 disable mipsfpu

  4615.             ;;

  4616.             p5600)

  4617.                 enable mips32r5

  4618.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4619.             ;;

  4620.             i6400)

  4621.                 enable mips64r6

  4622.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4623.             ;;

  4624.             p6600)

  4625.                 enable mips64r6

  4626.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4627.             ;;

  4628.         esac

  4629.     else

  4630.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4631.         warn 'generic cpu selected'

  4632.     fi

  4633. 

  4634. elif enabled ppc; then

  4635. 

  4636.     disable ldbrx

  4637. 

  4638.     case $(tolower $cpu) in

  4639.         601|ppc601|powerpc601)

  4640.             cpuflags="-mcpu=601"

  4641.             disable altivec

  4642.         ;;

  4643.         603*|ppc603*|powerpc603*)

  4644.             cpuflags="-mcpu=603"

  4645.             disable altivec

  4646.         ;;

  4647.         604*|ppc604*|powerpc604*)

  4648.             cpuflags="-mcpu=604"

  4649.             disable altivec

  4650.         ;;

  4651.         g3|75*|ppc75*|powerpc75*)

  4652.             cpuflags="-mcpu=750"

  4653.             disable altivec

  4654.         ;;

  4655.         g4|745*|ppc745*|powerpc745*)

  4656.             cpuflags="-mcpu=7450"

  4657.             disable vsx

  4658.         ;;

  4659.         74*|ppc74*|powerpc74*)

  4660.             cpuflags="-mcpu=7400"

  4661.             disable vsx

  4662.         ;;

  4663.         g5|970|ppc970|powerpc970)

  4664.             cpuflags="-mcpu=970"

  4665.             disable vsx

  4666.         ;;

  4667.         power[3-6]*)

  4668.             cpuflags="-mcpu=$cpu"

  4669.             disable vsx

  4670.         ;;

  4671.         power[7-8]*)

  4672.             cpuflags="-mcpu=$cpu"

  4673.         ;;

  4674.         cell)

  4675.             cpuflags="-mcpu=cell"

  4676.             enable ldbrx

  4677.             disable vsx

  4678.         ;;

  4679.         e500mc)

  4680.             cpuflags="-mcpu=e500mc"

  4681.             disable altivec

  4682.         ;;

  4683.         e500v2)

  4684.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4685.             disable altivec

  4686.             disable dcbzl

  4687.         ;;

  4688.         e500)

  4689.             cpuflags="-mcpu=8540 -mhard-float"

  4690.             disable altivec

  4691.             disable dcbzl

  4692.         ;;

  4693.     esac

  4694. 

  4695. elif enabled sparc; then

  4696. 

  4697.     case $cpu in

  4698.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4699.             cpuflags="-mcpu=$cpu"

  4700.         ;;

  4701.         ultrasparc*|niagara[234])

  4702.             cpuflags="-mcpu=$cpu"

  4703.         ;;

  4704.     esac

  4705. 

  4706. elif enabled x86; then

  4707. 

  4708.     case $cpu in

  4709.         i[345]86|pentium)

  4710.             cpuflags="-march=$cpu"

  4711.             disable i686

  4712.             disable mmx

  4713.         ;;

  4714.         # targets that do NOT support nopl and conditional mov (cmov)

  4715.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4716.             cpuflags="-march=$cpu"

  4717.             disable i686

  4718.         ;;

  4719.         # targets that do support nopl and conditional mov (cmov)

  4720.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4721.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4722.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4723.             cpuflags="-march=$cpu"

  4724.             enable i686

  4725.             enable fast_cmov

  4726.         ;;

  4727.         # targets that do support conditional mov but on which it's slow

  4728.         pentium4|pentium4m|prescott|nocona)

  4729.             cpuflags="-march=$cpu"

  4730.             enable i686

  4731.             disable fast_cmov

  4732.         ;;

  4733.     esac

  4734. 

  4735. fi

  4736. 

  4737. if [ "$cpu" != generic ]; then

  4738.     add_cflags  $cpuflags

  4739.     add_asflags $cpuflags

  4740.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4741. fi

  4742. 

  4743. # compiler sanity check

  4744. check_exec <<EOF

  4745. int main(void){ return 0; }

  4746. EOF

  4747. if test "$?" != 0; then

  4748.     echo "$cc is unable to create an executable file."

  4749.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4750.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4751.         echo "Only do this if you know what cross compiling means."

  4752.     fi

  4753.     die "C compiler test failed."

  4754. fi

  4755. 

  4756. add_cppflags -D_ISOC99_SOURCE

  4757. add_cxxflags -D__STDC_CONSTANT_MACROS

  4758. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4759. 

  4760. # some compilers silently accept -std=c11, so we also need to check that the

  4761. # version macro is defined properly

  4762. if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then

  4763.     add_cflags -std=c11

  4764. else

  4765.     check_cflags -std=c99

  4766. fi

  4767. 

  4768. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4769. #include <stdlib.h>

  4770. EOF

  4771. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4772. #include <stdlib.h>

  4773. EOF

  4774. 

  4775. add_host_cppflags -D_ISOC99_SOURCE

  4776. check_host_cflags -std=c99

  4777. check_host_cflags -Wall

  4778. check_host_cflags $host_cflags_speed

  4779. 

  4780. check_64bit(){

  4781.     arch32=$1

  4782.     arch64=$2

  4783.     expr=$3

  4784.     check_code cc "" "int test[2*($expr) - 1]" &&

  4785.         subarch=$arch64 || subarch=$arch32

  4786. }

  4787. 

  4788. case "$arch" in

  4789.     aarch64|alpha|ia64)

  4790.         spic=$shared

  4791.     ;;

  4792.     mips)

  4793.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4794.         spic=$shared

  4795.     ;;

  4796.     parisc)

  4797.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4798.         spic=$shared

  4799.     ;;

  4800.     ppc)

  4801.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4802.         spic=$shared

  4803.     ;;

  4804.     s390)

  4805.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4806.         spic=$shared

  4807.     ;;

  4808.     sparc)

  4809.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4810.         spic=$shared

  4811.     ;;

  4812.     x86)

  4813.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4814.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4815.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4816.             subarch=x86_64

  4817.         if test "$subarch" = "x86_64"; then

  4818.             spic=$shared

  4819.         fi

  4820.     ;;

  4821.     ppc)

  4822.         check_cc <<EOF && subarch="ppc64"

  4823.         int test[(int)sizeof(char*) - 7];

  4824. EOF

  4825.     ;;

  4826. esac

  4827. 

  4828. enable $subarch

  4829. enabled spic && enable_weak pic

  4830. 

  4831. enabled x86_64 && objformat=elf64 || objformat="elf32"

  4832. 

  4833. # OS specific

  4834. case $target_os in

  4835.     aix)

  4836.         SHFLAGS=-shared

  4837.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4838.         enabled shared && add_ldflags -Wl,-brtl

  4839.         ;;

  4840.     android)

  4841.         disable symver

  4842.         enable section_data_rel_ro

  4843.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4844.         SLIB_INSTALL_LINKS=

  4845.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4846.         ;;

  4847.     haiku)

  4848.         prefix_default="/boot/common"

  4849.         network_extralibs="-lnetwork"

  4850.         host_extralibs=

  4851.         ;;

  4852.     sunos)

  4853.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4854.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4855.         network_extralibs="-lsocket -lnsl"

  4856.         add_cppflags -D__EXTENSIONS__

  4857.         # When using suncc to build, the Solaris linker will mark

  4858.         # an executable with each instruction set encountered by

  4859.         # the Solaris assembler.  As our libraries contain their own

  4860.         # guards for processor-specific code, instead suppress

  4861.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4862.         enabled_all suncc x86 &&

  4863.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4864.             add_ldflags -Wl,-M,mapfile

  4865.         nm_default='nm -P -g'

  4866.         version_script='-M'

  4867.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4868.         ;;

  4869.     netbsd)

  4870.         disable symver

  4871.         oss_indev_extralibs="-lossaudio"

  4872.         oss_outdev_extralibs="-lossaudio"

  4873.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4874.         ;;

  4875.     openbsd|bitrig)

  4876.         disable symver

  4877.         SHFLAGS='-shared'

  4878.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4879.         SLIB_INSTALL_LINKS=

  4880.         oss_indev_extralibs="-lossaudio"

  4881.         oss_outdev_extralibs="-lossaudio"

  4882.         ;;

  4883.     dragonfly)

  4884.         disable symver

  4885.         ;;

  4886.     freebsd)

  4887.         ;;

  4888.     bsd/os)

  4889.         add_extralibs -lpoll -lgnugetopt

  4890.         strip="strip -d"

  4891.         ;;

  4892.     darwin)

  4893.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4894.         install_name_dir_default='$(SHLIBDIR)'

  4895.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4896.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4897.         strip="${strip} -x"

  4898.         add_ldflags -Wl,-dynamic,-search_paths_first

  4899.         SLIBSUF=".dylib"

  4900.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4901.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4902.         objformat="macho"

  4903.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4904.         enabled_any pic shared x86_64 ||

  4905.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4906.         check_header dispatch/dispatch.h &&

  4907.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4908.         version_script='-exported_symbols_list'

  4909.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4910.         ;;

  4911.     msys*)

  4912.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4913.         ;;

  4914.     mingw32*|mingw64*)

  4915.         if test $target_os = "mingw32ce"; then

  4916.             disable network

  4917.         else

  4918.             target_os=mingw32

  4919.         fi

  4920.         LIBTARGET=i386

  4921.         if enabled x86_64; then

  4922.             LIBTARGET="i386:x86-64"

  4923.         elif enabled arm; then

  4924.             LIBTARGET=arm-wince

  4925.         fi

  4926.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4927.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4928.         shlibdir_default="$bindir_default"

  4929.         SLIBPREF=""

  4930.         SLIBSUF=".dll"

  4931.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4932.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4933.         dlltool="${cross_prefix}dlltool"

  4934.         if check_cmd lib.exe -list; then

  4935.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4936.             if enabled x86_64; then

  4937.                 LIBTARGET=x64

  4938.             fi

  4939.         elif check_cmd $dlltool --version; then

  4940.             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)'

  4941.         fi

  4942.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4943.         SLIB_INSTALL_LINKS=

  4944.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4945.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4946.         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'

  4947.         enabled x86_64 && objformat="win64" || objformat="win32"

  4948.         ranlib=:

  4949.         enable dos_paths

  4950.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4951.         # Lets work around some stupidity in binutils.

  4952.         # ld will strip relocations from executables even though we need them

  4953.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4954.         # however ld then forgets what the entry point should be (oops) so we

  4955.         # have to manually (re)set it.

  4956.         if enabled x86_32; then

  4957.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4958.         elif enabled x86_64; then

  4959.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4960.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4961.             # Set image base >4GB for extra entropy with HEASLR

  4962.             add_ldexeflags -Wl,--image-base,0x140000000

  4963.             append SHFLAGS -Wl,--image-base,0x180000000

  4964.         fi

  4965.         ;;

  4966.     win32|win64)

  4967.         disable symver

  4968.         if enabled shared; then

  4969.             # Link to the import library instead of the normal static library

  4970.             # for shared libs.

  4971.             LD_LIB='%.lib'

  4972.             # Cannot build both shared and static libs with MSVC or icl.

  4973.             disable static

  4974.         fi

  4975.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4976.         shlibdir_default="$bindir_default"

  4977.         SLIBPREF=""

  4978.         SLIBSUF=".dll"

  4979.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4980.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4981.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4982.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4983.         SLIB_INSTALL_LINKS=

  4984.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4985.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4986.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4987.         enabled x86_64 && objformat="win64" || objformat="win32"

  4988.         ranlib=:

  4989.         enable dos_paths

  4990.         ;;

  4991.     cygwin*)

  4992.         target_os=cygwin

  4993.         shlibdir_default="$bindir_default"

  4994.         SLIBPREF="cyg"

  4995.         SLIBSUF=".dll"

  4996.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4997.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4998.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4999.         SLIB_INSTALL_LINKS=

  5000.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5001.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5002.         enabled x86_64 && objformat="win64" || objformat="win32"

  5003.         enable dos_paths

  5004.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5005.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5006.         ;;

  5007.     *-dos|freedos|opendos)

  5008.         network_extralibs="-lsocket"

  5009.         objformat="coff"

  5010.         enable dos_paths

  5011.         add_cppflags -U__STRICT_ANSI__

  5012.         ;;

  5013.     linux)

  5014.         enable dv1394

  5015.         enable section_data_rel_ro

  5016.         ;;

  5017.     irix*)

  5018.         target_os=irix

  5019.         ranlib="echo ignoring ranlib"

  5020.         ;;

  5021.     os/2*)

  5022.         strip="lxlite -CS"

  5023.         objformat="aout"

  5024.         add_cppflags -D_GNU_SOURCE

  5025.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5026.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5027.         LIBSUF="_s.a"

  5028.         SLIBPREF=""

  5029.         SLIBSUF=".dll"

  5030.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5031.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5032.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5033.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5034.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5035.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5036.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5037.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5038.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5039.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5040.         SLIB_INSTALL_LINKS=

  5041.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5042.         enable dos_paths

  5043.         enable_weak os2threads

  5044.         ;;

  5045.     gnu/kfreebsd)

  5046.         add_cppflags -D_BSD_SOURCE

  5047.         ;;

  5048.     gnu)

  5049.         ;;

  5050.     qnx)

  5051.         add_cppflags -D_QNX_SOURCE

  5052.         network_extralibs="-lsocket"

  5053.         ;;

  5054.     symbian)

  5055.         SLIBSUF=".dll"

  5056.         enable dos_paths

  5057.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5058.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5059.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5060.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5061.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5062.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5063.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5064.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5065.         ;;

  5066.     osf1)

  5067.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  5068.         ;;

  5069.     minix)

  5070.         ;;

  5071.     none)

  5072.         ;;

  5073.     *)

  5074.         die "Unknown OS '$target_os'."

  5075.         ;;

  5076. esac

  5077. 

  5078. # test if creating links works

  5079. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5080. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5081. mkdir "$link_dest"

  5082. $ln_s "$link_dest" "$link_name"

  5083. touch "$link_dest/test_file"

  5084. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5085.     # create link to source path

  5086.     [ -e src ] && rm src

  5087.     $ln_s "$source_path" src

  5088.     source_link=src

  5089. else

  5090.     # creating directory links doesn't work

  5091.     # fall back to using the full source path

  5092.     source_link="$source_path"

  5093. fi

  5094. # cleanup

  5095. rm -r "$link_dest"

  5096. rm -r "$link_name"

  5097. 

  5098. # determine libc flavour

  5099. 

  5100. probe_libc(){

  5101.     pfx=$1

  5102.     pfx_no_=${pfx%_}

  5103.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5104.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5105.         eval ${pfx}libc_type=uclibc

  5106.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5107.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5108.         eval ${pfx}libc_type=glibc

  5109.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5110.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5111.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5112.         eval ${pfx}libc_type=newlib

  5113.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5114.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5115.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5116.         eval ${pfx}libc_type=mingw64

  5117.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5118.             add_compat msvcrt/snprintf.o

  5119.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5120.         fi

  5121.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5122.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5123.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5124.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5125.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5126.         eval ${pfx}libc_type=mingw32

  5127.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5128.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5129.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5130.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5131.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  5132.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5133.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5134.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5135.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5136.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5137.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5138.         eval ${pfx}libc_type=msvcrt

  5139.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5140.             if [ "$pfx" = host_ ]; then

  5141.                 add_host_cppflags -Dsnprintf=_snprintf

  5142.             else

  5143.                 add_compat strtod.o strtod=avpriv_strtod

  5144.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5145.                                              _snprintf=avpriv_snprintf  \

  5146.                                              vsnprintf=avpriv_vsnprintf

  5147.             fi

  5148.         fi

  5149.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5150.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5151.         # 0x601 by default unless something else is set by the user.

  5152.         # This can easily lead to us detecting functions only present

  5153.         # in such new versions and producing binaries requiring windows 7.0.

  5154.         # Therefore explicitly set the default to XP unless the user has

  5155.         # set something else on the command line.

  5156.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5157.         # family. For these cases, configure is free to use any functions

  5158.         # found in the SDK headers by default. (Alternatively, we could force

  5159.         # _WIN32_WINNT to 0x0602 in that case.)

  5160.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5161.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5162. #ifdef WINAPI_FAMILY

  5163. #include <winapifamily.h>

  5164. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5165. #error not desktop

  5166. #endif

  5167. #endif

  5168. EOF

  5169.         if [ "$pfx" = "" ]; then

  5170.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5171.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5172.         fi

  5173.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5174.         eval ${pfx}libc_type=klibc

  5175.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5176.         eval ${pfx}libc_type=bionic

  5177.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5178.         eval ${pfx}libc_type=solaris

  5179.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5180.     fi

  5181.     check_${pfx}cc <<EOF

  5182. #include <time.h>

  5183. void *v = localtime_r;

  5184. EOF

  5185. 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

  5186. #include <time.h>

  5187. void *v = localtime_r;

  5188. EOF

  5189. 

  5190. }

  5191. 

  5192. probe_libc

  5193. test -n "$libc_type" && enable libc_$libc_type

  5194. probe_libc host_

  5195. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5196. 

  5197. case $libc_type in

  5198.     bionic)

  5199.         add_compat strtod.o strtod=avpriv_strtod

  5200.         ;;

  5201. esac

  5202. 

  5203. # hacks for compiler/libc/os combinations

  5204. 

  5205. if enabled_all tms470 libc_glibc; then

  5206.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5207.     add_cppflags -D__USER_LABEL_PREFIX__=

  5208.     add_cppflags -D__builtin_memset=memset

  5209.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5210.     add_cflags   -pds=48    # incompatible redefinition of macro

  5211. fi

  5212. 

  5213. if enabled_all ccc libc_glibc; then

  5214.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  5215. fi

  5216. 

  5217. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5218.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5219. 

  5220. esc(){

  5221.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5222. }

  5223. 

  5224. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  5225. 

  5226. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5227. 

  5228. set_default libdir

  5229. : ${shlibdir_default:="$libdir"}

  5230. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5231. 

  5232. set_default $PATHS_LIST

  5233. set_default nm

  5234. 

  5235. # we need to build at least one lib type

  5236. if ! enabled_any static shared; then

  5237.     cat <<EOF

  5238. At least one library type must be built.

  5239. Specify --enable-static to build the static libraries or --enable-shared to

  5240. build the shared libraries as well. To only build the shared libraries specify

  5241. --disable-static in addition to --enable-shared.

  5242. EOF

  5243.     exit 1

  5244. fi

  5245. 

  5246. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5247. 

  5248. enable_weak_pic() {

  5249.     disabled pic && return

  5250.     enable pic

  5251.     add_cppflags -DPIC

  5252.     case "$target_os" in

  5253.     mingw*|cygwin*)

  5254.         ;;

  5255.     *)

  5256.         add_cflags -fPIC

  5257.         ;;

  5258.     esac

  5259.     add_asflags  -fPIC

  5260. }

  5261. 

  5262. enabled pic && enable_weak_pic

  5263. 

  5264. check_cc <<EOF || die "Symbol mangling check failed."

  5265. int ff_extern;

  5266. EOF

  5267. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5268. extern_prefix=${sym%%ff_extern*}

  5269. 

  5270. check_cc <<EOF && enable_weak inline_asm

  5271. void foo(void) { __asm__ volatile ("" ::); }

  5272. EOF

  5273. 

  5274. _restrict=

  5275. for restrict_keyword in restrict __restrict__ __restrict; do

  5276.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5277. void foo(char * $restrict_keyword p);

  5278. EOF

  5279. done

  5280. 

  5281. check_cc <<EOF && enable pragma_deprecated

  5282. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5283. EOF

  5284. 

  5285. check_cc <<EOF && enable attribute_packed

  5286. struct { int x; } __attribute__((packed)) x;

  5287. EOF

  5288. 

  5289. check_cc <<EOF && enable attribute_may_alias

  5290. union { int x; } __attribute__((may_alias)) x;

  5291. EOF

  5292. 

  5293. check_cc <<EOF || die "endian test failed"

  5294. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5295. EOF

  5296. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5297. 

  5298. if ! enabled ppc64 || enabled bigendian; then

  5299.     disable vsx

  5300. fi

  5301. 

  5302. check_gas() {

  5303.     log "check_gas using '$as' as AS"

  5304.     # :vararg is used on aarch64, arm and ppc altivec

  5305.     check_as <<EOF || return 1

  5306. .macro m n, y:vararg=0

  5307. \n: .int \y

  5308. .endm

  5309. m x

  5310. EOF

  5311.     # .altmacro is only used in arm asm

  5312.     ! enabled arm || check_as <<EOF || return 1

  5313. .altmacro

  5314. EOF

  5315.     enable gnu_as

  5316.     return 0

  5317. }

  5318. 

  5319. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5320.     nogas=:

  5321.     enabled_any arm aarch64 && nogas=die

  5322.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5323.     as_noop=-v

  5324. 

  5325.     case $as_type in

  5326.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5327.         gcc)  gaspp_as_type=gas ;;

  5328.         *)    gaspp_as_type=$as_type ;;

  5329.     esac

  5330. 

  5331.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5332. 

  5333.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5334.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5335.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5336. 

  5337.     if ! check_gas ; then

  5338.         as=${gas:=$as}

  5339.         check_gas || \

  5340.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5341.     fi

  5342. 

  5343.     check_as <<EOF && enable as_func

  5344. .func test

  5345. .endfunc

  5346. EOF

  5347. fi

  5348. 

  5349. check_inline_asm inline_asm_labels '"1:\n"'

  5350. 

  5351. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5352. 

  5353. if enabled aarch64; then

  5354.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5355.     # internal assembler in clang 3.3 does not support this instruction

  5356.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5357.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5358. 

  5359.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5360. 

  5361. elif enabled alpha; then

  5362. 

  5363.     check_cflags -mieee

  5364. 

  5365. elif enabled arm; then

  5366. 

  5367.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5368. 

  5369.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5370. float func(float a, float b){ return a+b; }

  5371. EOF

  5372. 

  5373.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5374. 

  5375.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5376.         enable vfp_args

  5377.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5378.         enable vfp_args

  5379.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5380.         case "${cross_prefix:-$cc}" in

  5381.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5382.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5383. __asm__ (".eabi_attribute 28, 1");

  5384. int main(void) { return 0; }

  5385. EOF

  5386.         esac

  5387.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5388.     fi

  5389. 

  5390.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5391.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5392.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5393.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5394.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5395.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5396.     enabled setend  && check_insn setend  'setend be'

  5397. 

  5398.     [ $target_os = linux ] || [ $target_os = android ] ||

  5399.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5400.             $ARCH_EXT_LIST_ARM

  5401. 

  5402.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5403. 

  5404.     check_as <<EOF && enable as_dn_directive

  5405. ra .dn d0.i16

  5406. .unreq ra

  5407. EOF

  5408.     check_as <<EOF && enable as_fpu_directive

  5409. .fpu neon

  5410. EOF

  5411. 

  5412.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5413.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5414.         check_as <<EOF && enable as_object_arch

  5415. .object_arch armv4

  5416. EOF

  5417. 

  5418.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5419. 

  5420. elif enabled mips; then

  5421. 

  5422.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5423.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5424.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5425. 

  5426.     # Enable minimum ISA based on selected options

  5427.     if enabled mips64; then

  5428.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5429.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5430.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5431.     else

  5432.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5433.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5434.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5435.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5436.     fi

  5437. 

  5438.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5439.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5440.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5441.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5442.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5443. 

  5444.     if enabled bigendian && enabled msa; then

  5445.         disable msa

  5446.     fi

  5447. 

  5448. elif enabled parisc; then

  5449. 

  5450.     if enabled gcc; then

  5451.         case $($cc -dumpversion) in

  5452.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5453.         esac

  5454.     fi

  5455. 

  5456. elif enabled ppc; then

  5457. 

  5458.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5459. 

  5460.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5461.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5462.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5463.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5464. 

  5465.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5466.     if enabled altivec; then

  5467.         check_cflags -maltivec -mabi=altivec &&

  5468.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5469.         check_cflags -faltivec

  5470. 

  5471.         # check if our compiler supports Motorola AltiVec C API

  5472.         check_cc <<EOF || disable altivec

  5473. $inc_altivec_h

  5474. int main(void) {

  5475.     vector signed int v1 = (vector signed int) { 0 };

  5476.     vector signed int v2 = (vector signed int) { 1 };

  5477.     v1 = vec_add(v1, v2);

  5478.     return 0;

  5479. }

  5480. EOF

  5481. 

  5482.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5483.     fi

  5484. 

  5485.     if enabled vsx; then

  5486.         check_cflags -mvsx &&

  5487.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5488.     fi

  5489. 

  5490.     if enabled power8; then

  5491.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5492.     fi

  5493. 

  5494. elif enabled x86; then

  5495. 

  5496.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5497.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5498. 

  5499.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5500. 

  5501.     # check whether EBP is available on x86

  5502.     # As 'i' is stored on the stack, this program will crash

  5503.     # if the base pointer is used to access it because the

  5504.     # base pointer is cleared in the inline assembly code.

  5505.     check_exec_crash <<EOF && enable ebp_available

  5506. volatile int i=0;

  5507. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5508. return i;

  5509. EOF

  5510. 

  5511.     # check whether EBX is available on x86

  5512.     check_inline_asm ebx_available '""::"b"(0)' &&

  5513.         check_inline_asm ebx_available '"":::"%ebx"'

  5514. 

  5515.     # check whether xmm clobbers are supported

  5516.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5517. 

  5518.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5519.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5520. 

  5521.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5522.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5523.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5524. 

  5525.     probe_x86asm(){

  5526.         x86asmexe_probe=$1

  5527.         if check_cmd $x86asmexe_probe -v; then

  5528.             x86asmexe=$x86asmexe_probe

  5529.             x86asm_type=nasm

  5530.             x86asm_debug="-g -F dwarf"

  5531.         elif check_cmd $x86asmexe_probe --version; then

  5532.             x86asmexe=$x86asmexe_probe

  5533.             x86asm_type=yasm

  5534.             x86asm_debug="-g dwarf2"

  5535.         fi

  5536.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5537.     }

  5538. 

  5539.     if ! disabled_any asm mmx x86asm; then

  5540.         disable x86asm

  5541.         for program in $x86asmexe nasm yasm; do

  5542.             probe_x86asm $program && break

  5543.         done

  5544.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5545.         test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5546.         test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5547.         X86ASMFLAGS="-f $objformat"

  5548.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5549.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5550.         case "$objformat" in

  5551.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5552.         esac

  5553. 

  5554.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5555.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5556.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5557.         check_x86asm "CPU amdnop" || disable cpunop

  5558.     fi

  5559. 

  5560.     case "$cpu" in

  5561.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5562.             disable fast_clz

  5563.         ;;

  5564.     esac

  5565. 

  5566. fi

  5567. 

  5568. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5569. 

  5570. check_ldflags -Wl,--as-needed

  5571. check_ldflags -Wl,-z,noexecstack

  5572. 

  5573. if check_func dlopen && check_func dlsym; then

  5574.     ldl=

  5575. elif check_func dlopen -ldl && check_func dlsym -ldl; then

  5576.     ldl=-ldl

  5577. fi

  5578. 

  5579. avisynth_demuxer_extralibs='$ldl'

  5580. cuda_extralibs='$ldl'

  5581. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5582. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5583. libndi_newtek_outdev_extralibs="$libndi_newtek_outdev_extralibs $ldl"

  5584. libndi_newtek_indev_extralibs="$libndi_newtek_indev_extralibs $ldl"

  5585. frei0r_filter_extralibs='$ldl'

  5586. frei0r_src_filter_extralibs='$ldl'

  5587. ladspa_filter_extralibs='$ldl'

  5588. nvenc_extralibs='$ldl'

  5589. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5590. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5591. 

  5592. if ! disabled network; then

  5593.     check_func getaddrinfo $network_extralibs

  5594.     check_func inet_aton $network_extralibs

  5595. 

  5596.     check_type netdb.h "struct addrinfo"

  5597.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5598.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5599.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5600.     check_type poll.h "struct pollfd"

  5601.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5602.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5603.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5604.     check_type netinet/in.h "struct sockaddr_in6"

  5605.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5606.     check_type "sys/types.h sys/socket.h" socklen_t

  5607. 

  5608.     # Prefer arpa/inet.h over winsock2

  5609.     if check_header arpa/inet.h ; then

  5610.         check_func closesocket

  5611.     elif check_header winsock2.h ; then

  5612.         check_func_headers winsock2.h closesocket -lws2 &&

  5613.             network_extralibs="-lws2" ||

  5614.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5615.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5616.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5617. 

  5618.         check_type ws2tcpip.h socklen_t

  5619.         check_type ws2tcpip.h "struct addrinfo"

  5620.         check_type ws2tcpip.h "struct group_source_req"

  5621.         check_type ws2tcpip.h "struct ip_mreq_source"

  5622.         check_type ws2tcpip.h "struct ipv6_mreq"

  5623.         check_type winsock2.h "struct pollfd"

  5624.         check_struct winsock2.h "struct sockaddr" sa_len

  5625.         check_type ws2tcpip.h "struct sockaddr_in6"

  5626.         check_type ws2tcpip.h "struct sockaddr_storage"

  5627.     else

  5628.         disable network

  5629.     fi

  5630. fi

  5631. 

  5632. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5633. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5634. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5635. check_builtin sarestart signal.h "SA_RESTART"

  5636. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5637. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5638. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5639. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5640. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5641. 

  5642. case "$custom_allocator" in

  5643.     jemalloc)

  5644.         # jemalloc by default does not use a prefix

  5645.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5646.     ;;

  5647.     tcmalloc)

  5648.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5649.         malloc_prefix=tc_

  5650.     ;;

  5651. esac

  5652. 

  5653. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5654. check_func  ${malloc_prefix}memalign            && enable memalign

  5655. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5656. 

  5657. check_func  access

  5658. check_func_headers stdlib.h arc4random

  5659. check_func_headers time.h clock_gettime ||

  5660.     { check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }

  5661. check_func  fcntl

  5662. check_func  fork

  5663. check_func  gethrtime

  5664. check_func  getopt

  5665. check_func  getrusage

  5666. check_func  gettimeofday

  5667. check_func  isatty

  5668. check_func  mach_absolute_time

  5669. check_func  mkstemp

  5670. check_func  mmap

  5671. check_func  mprotect

  5672. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5673. check_func_headers time.h nanosleep ||

  5674.     { check_lib nanosleep time.h nanosleep -lrt && LIBRT="-lrt"; }

  5675. check_func  sched_getaffinity

  5676. check_func  setrlimit

  5677. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5678. check_func  strerror_r

  5679. check_func  sysconf

  5680. check_func  sysctl

  5681. check_func  usleep

  5682. 

  5683. check_func_headers conio.h kbhit

  5684. check_func_headers io.h setmode

  5685. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5686. check_func_headers stdlib.h getenv

  5687. check_func_headers sys/stat.h lstat

  5688. 

  5689. check_func_headers windows.h GetProcessAffinityMask

  5690. check_func_headers windows.h GetProcessTimes

  5691. check_func_headers windows.h GetSystemTimeAsFileTime

  5692. check_func_headers windows.h LoadLibrary

  5693. check_func_headers windows.h MapViewOfFile

  5694. check_func_headers windows.h PeekNamedPipe

  5695. check_func_headers windows.h SetConsoleTextAttribute

  5696. check_func_headers windows.h SetConsoleCtrlHandler

  5697. check_func_headers windows.h Sleep

  5698. check_func_headers windows.h VirtualAlloc

  5699. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5700. check_func_headers glob.h glob

  5701. enabled xlib &&

  5702.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5703. 

  5704. check_header AudioToolbox/AudioToolbox.h

  5705. check_header d3d11.h

  5706. check_header direct.h

  5707. check_header dirent.h

  5708. check_header dlfcn.h

  5709. check_header dxgidebug.h

  5710. check_header dxva.h

  5711. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5712. check_header io.h

  5713. check_header libcrystalhd/libcrystalhd_if.h

  5714. check_header mach/mach_time.h

  5715. check_header malloc.h

  5716. check_header net/udplite.h

  5717. check_header poll.h

  5718. check_header sys/mman.h

  5719. check_header sys/param.h

  5720. check_header sys/resource.h

  5721. check_header sys/select.h

  5722. check_header sys/time.h

  5723. check_header sys/un.h

  5724. check_header termios.h

  5725. check_header unistd.h

  5726. check_header valgrind/valgrind.h

  5727. check_header VideoDecodeAcceleration/VDADecoder.h

  5728. check_header VideoToolbox/VideoToolbox.h

  5729. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5730. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5731. check_header windows.h

  5732. check_header X11/extensions/XvMClib.h

  5733. check_header asm/types.h

  5734. 

  5735. # it seems there are versions of clang in some distros that try to use the

  5736. # gcc headers, which explodes for stdatomic

  5737. # so we also check that atomics actually work here

  5738. check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5739. 

  5740. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5741. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5742. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5743. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5744. 

  5745. check_lib coreservices "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5746. 

  5747. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5748. 

  5749. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5750. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5751. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5752. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5753. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5754. 

  5755. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5756. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5757. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5758. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5759. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5760. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5761. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5762. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5763. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5764. 

  5765. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5766. 

  5767. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5768. 

  5769. if ! disabled w32threads && ! enabled pthreads; then

  5770.     check_func_headers "windows.h process.h" _beginthreadex &&

  5771.         enable w32threads || disable w32threads

  5772.     if ! enabled w32threads && enabled winrt; then

  5773.         check_func_headers "windows.h" CreateThread &&

  5774.             enable w32threads || disable w32threads

  5775.     fi

  5776. fi

  5777. 

  5778. # check for some common methods of building with pthread support

  5779. # do this before the optional library checks as some of them require pthreads

  5780. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5781.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5782.        check_lib pthreads pthread.h pthread_create -pthread; then

  5783.         add_cflags -pthread

  5784.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5785.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5786.         add_cflags -pthreads

  5787.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5788.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5789.         add_cflags -ldl -pthread

  5790.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5791.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5792.         :

  5793.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5794.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5795.         :

  5796.     elif check_func pthread_join && check_func pthread_create; then

  5797.         enable pthreads

  5798.     fi

  5799.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5800. fi

  5801. 

  5802. 

  5803. if enabled pthreads; then

  5804.   check_func pthread_cancel

  5805. fi

  5806. 

  5807. enabled pthreads &&

  5808.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

  5809. 

  5810. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5811. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5812. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5813. 

  5814. check_lib libm math.h sin -lm && LIBM="-lm"

  5815. 

  5816. atan2f_args=2

  5817. copysign_args=2

  5818. hypot_args=2

  5819. ldexpf_args=2

  5820. powf_args=2

  5821. 

  5822. for func in $MATH_FUNCS; do

  5823.     eval check_mathfunc $func \${${func}_args:-1} $LIBM

  5824. done

  5825. 

  5826. for func in $COMPLEX_FUNCS; do

  5827.     eval check_complexfunc $func \${${func}_args:-1}

  5828. done

  5829. 

  5830. # these are off by default, so fail if requested and not available

  5831. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5832. enabled avfoundation_indev && { check_lib avfoundation_indev CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5833.                                 check_lib avfoundation_indev ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5834. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5835. enabled cuvid             && { enabled cuda ||

  5836.                                die "ERROR: CUVID requires CUDA"; }

  5837. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5838. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5839. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5840. enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&

  5841.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5842. enabled libndi_newtek     && { check_header Processing.NDI.Lib.h || die "ERROR: Processing.NDI.Lib.h header not found"; }

  5843. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5844. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5845. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5846. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5847. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5848. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5849. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5850. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5851. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5852. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5853.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5854.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5855. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5856. enabled libdc1394         && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new

  5857. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5858.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5859.                                  warn "using libfdk without pkg-config"; } }

  5860. 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"

  5861. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5862. enabled fontconfig        && enable libfontconfig

  5863. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5864. enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5865. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5866. enabled libgme            && { use_pkg_config libgme gme/gme.h gme_new_emu ||

  5867.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5868. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5869.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5870.                                done || die "ERROR: libgsm not found"; }

  5871. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5872. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5873. # While it may appear that require is being used as a pkg-config

  5874. # fallback for libmfx, it is actually being used to detect a different

  5875. # installation route altogether.  If libmfx is installed via the Intel

  5876. # Media SDK or Intel Media Server Studio, these don't come with

  5877. # pkg-config support.  Instead, users should make sure that the build

  5878. # can find the libraries and headers through other means.

  5879. enabled libmfx            && { use_pkg_config libmfx "mfx/mfxvideo.h" MFXInit ||

  5880.                                { require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }

  5881. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5882. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5883. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa

  5884. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5885.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5886.                                die "ERROR: libnpp not found"; }

  5887. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5888. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5889. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5890.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5891.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5892.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5893. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5894. enabled libopenjpeg       && { { check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5895.                                check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 ||

  5896.                                { check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5897.                                check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||

  5898.                                { check_lib libopenjpeg openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5899.                                { check_lib libopenjpeg openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5900.                                { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5901.                                die "ERROR: libopenjpeg not found"; }

  5902. enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create

  5903. enabled libopus           && {

  5904.     enabled libopus_decoder && {

  5905.         require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5906.     }

  5907.     enabled libopus_encoder && {

  5908.         require_pkg_config opus opus_multistream.h opus_multistream_surround_encoder_create

  5909.     }

  5910. }

  5911. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5912. enabled librsvg           && require_pkg_config librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5913. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5914. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5915. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5916. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5917.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5918. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy

  5919. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5920. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5921. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5922. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5923. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5924. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5925.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5926.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5927. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5928. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5929. enabled libvmaf           && require_pkg_config libvmaf libvmaf.h compute_vmaf

  5930. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5931. enabled libvorbis         && require_pkg_config vorbis vorbis/codec.h vorbis_info_init &&

  5932.                              require_pkg_config vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  5933. 

  5934. enabled libvpx            && {

  5935.     enabled libvpx_vp8_decoder && {

  5936.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5937.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5938.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5939.     }

  5940.     enabled libvpx_vp8_encoder && {

  5941.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5942.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5943.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5944.     }

  5945.     enabled libvpx_vp9_decoder && {

  5946.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5947.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx

  5948.     }

  5949.     enabled libvpx_vp9_encoder && {

  5950.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5951.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx

  5952.     }

  5953.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5954.         die "libvpx enabled but no supported decoders found"

  5955.     fi

  5956. }

  5957. 

  5958. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5959. enabled libwebp           && {

  5960.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5961.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5962. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5963.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5964.                                  warn "using libx264 without pkg-config"; } } &&

  5965.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5966.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5967.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5968.                                enable libx262; }

  5969. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5970.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5971.                                die "ERROR: libx265 version must be >= 68."; }

  5972. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs

  5973. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5974. enabled libzimg           && require_pkg_config "zimg >= 2.3.0" zimg.h zimg_get_api_version

  5975. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5976. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5977.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5978.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5979. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5980. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5981.                                { ! enabled cross_compile &&

  5982.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5983.                                  add_ldflags -L/opt/vc/lib/ &&

  5984.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5985.                                die "ERROR: mmal not found" &&

  5986.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5987. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5988.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5989.                                die "ERROR: openal not found"; } &&

  5990.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5991.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5992. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5993.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5994.                                die "ERROR: opencl not found"; } &&

  5995.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5996.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5997.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5998. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  5999.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  6000.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  6001.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  6002.                                die "ERROR: opengl not found."

  6003.                              }

  6004. enabled omx_rpi           && { check_header OMX_Core.h ||

  6005.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  6006.                                die "ERROR: OpenMAX IL headers not found"; }

  6007. enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }

  6008. enabled openssl           && { use_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||

  6009.                                use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  6010.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  6011.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  6012.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  6013.                                die "ERROR: openssl not found"; }

  6014. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  6015. 

  6016. if enabled gcrypt; then

  6017.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6018.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6019.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6020.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6021.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6022.             die "ERROR: gcrypt not found"

  6023.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_extralibs

  6024.     else

  6025.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6026.     fi

  6027. fi

  6028. 

  6029. if enabled sdl2; then

  6030.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6031.     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then

  6032.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6033.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6034.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||

  6035.             disable sdl2

  6036.     elif "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6037.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6038.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6039.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6040.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6041.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||

  6042.             disable sdl2

  6043.     else

  6044.         disable sdl2

  6045.     fi

  6046.     if test $target_os = "mingw32"; then

  6047.         sdl2_extralibs="$sdl2_extralibs -mconsole"

  6048.     fi

  6049. fi

  6050. enabled sdl2 && add_cflags $sdl2_cflags && add_extralibs $sdl2_extralibs

  6051. 

  6052. if enabled decklink; then

  6053.     case $target_os in

  6054.         mingw32*|mingw64*|win32|win64)

  6055.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6056.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6057.             ;;

  6058.     esac

  6059. fi

  6060. 

  6061. enabled securetransport &&

  6062.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6063.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6064.         disable securetransport

  6065. 

  6066. enabled schannel &&

  6067.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6068.     check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6069.     add_extralibs -lsecur32 ||

  6070.         disable schannel

  6071. 

  6072. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6073. enabled makeinfo \

  6074.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6075.     && enable makeinfo_html || disable makeinfo_html

  6076. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6077. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6078. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6079. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6080. 

  6081. check_header linux/fb.h

  6082. check_header linux/videodev.h

  6083. check_header linux/videodev2.h

  6084. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6085. 

  6086. check_header sys/videoio.h

  6087. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6088. 

  6089. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6090. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6091. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6092. # w32api 3.12 had it defined wrong

  6093. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6094. 

  6095. check_type "dshow.h" IBaseFilter

  6096. 

  6097. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6098. { check_header dev/bktr/ioctl_meteor.h &&

  6099.   check_header dev/bktr/ioctl_bt848.h; } ||

  6100. { check_header machine/ioctl_meteor.h &&

  6101.   check_header machine/ioctl_bt848.h; } ||

  6102. { check_header dev/video/meteor/ioctl_meteor.h &&

  6103.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  6104. check_header dev/ic/bt8xx.h

  6105. 

  6106. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6107.     enable_safe sys/soundcard.h

  6108. else

  6109.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  6110.     #include <sys/soundcard.h>

  6111.     audio_buf_info abc;

  6112. EOF

  6113. fi

  6114. check_header soundcard.h

  6115. 

  6116. enabled alsa && check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6117. 

  6118. enabled jack && check_lib jack jack/jack.h jack_client_open -ljack &&

  6119.     check_func jack_port_get_latency_range -ljack

  6120. 

  6121. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6122. 

  6123. if enabled libcdio; then

  6124.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6125.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6126.     die "ERROR: No usable libcdio/cdparanoia found"

  6127. fi

  6128. 

  6129. enabled libxcb && check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || disable libxcb

  6130. 

  6131. if enabled libxcb; then

  6132. 

  6133.     enabled libxcb_shm    && check_pkg_config xcb-shm    xcb/shm.h    xcb_shm_attach              || disable libxcb_shm

  6134.     enabled libxcb_shape  && check_pkg_config xcb-shape  xcb/shape.h  xcb_shape_get_rectangles    || disable libxcb_shape

  6135.     enabled libxcb_xfixes && check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || disable libxcb_xfixes

  6136. 

  6137.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  6138.     add_extralibs $xcb_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs $xcb_shape_extralibs

  6139. fi

  6140. 

  6141. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6142. 

  6143. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6144. # the desktop api partition

  6145. check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6146. #ifdef WINAPI_FAMILY

  6147. #include <winapifamily.h>

  6148. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6149. #error desktop, not uwp

  6150. #else

  6151. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6152. #endif

  6153. #else

  6154. #error no family set

  6155. #endif

  6156. EOF

  6157. 

  6158. enabled vaapi &&

  6159.     check_lib vaapi va/va.h vaInitialize -lva

  6160. 

  6161. enabled vaapi &&

  6162.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6163.     disable vaapi

  6164. 

  6165. enabled vaapi &&

  6166.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6167. 

  6168. enabled vaapi &&

  6169.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6170. 

  6171. enabled vdpau &&

  6172.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6173.     disable vdpau

  6174. 

  6175. enabled vdpau &&

  6176.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6177. 

  6178. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6179. 

  6180. if enabled x86; then

  6181.     case $target_os in

  6182.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6183.             ;;

  6184.         *)

  6185.             disable cuda cuvid nvenc

  6186.             ;;

  6187.     esac

  6188. else

  6189.     disable cuda cuvid nvenc

  6190. fi

  6191. 

  6192. enabled nvenc &&

  6193.     check_cc -I$source_path <<EOF || disable nvenc

  6194. #include "compat/nvenc/nvEncodeAPI.h"

  6195. NV_ENCODE_API_FUNCTION_LIST flist;

  6196. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6197. int main(void) { return 0; }

  6198. EOF

  6199. 

  6200. # Funny iconv installations are not unusual, so check it after all flags have been set

  6201. if enabled libc_iconv; then

  6202.     check_func_headers iconv.h iconv

  6203. elif enabled iconv; then

  6204.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6205. fi

  6206. 

  6207. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6208. 

  6209. # add some useful compiler flags if supported

  6210. check_cflags -Wdeclaration-after-statement

  6211. check_cflags -Wall

  6212. check_cflags -Wdisabled-optimization

  6213. check_cflags -Wpointer-arith

  6214. check_cflags -Wredundant-decls

  6215. check_cflags -Wwrite-strings

  6216. check_cflags -Wtype-limits

  6217. check_cflags -Wundef

  6218. check_cflags -Wmissing-prototypes

  6219. check_cflags -Wno-pointer-to-int-cast

  6220. check_cflags -Wstrict-prototypes

  6221. check_cflags -Wempty-body

  6222. 

  6223. if enabled extra_warnings; then

  6224.     check_cflags -Wcast-qual

  6225.     check_cflags -Wextra

  6226.     check_cflags -Wpedantic

  6227. fi

  6228. 

  6229. check_disable_warning(){

  6230.     warning_flag=-W${1#-Wno-}

  6231.     test_cflags $warning_flag && add_cflags $1

  6232. }

  6233. 

  6234. check_disable_warning -Wno-parentheses

  6235. check_disable_warning -Wno-switch

  6236. check_disable_warning -Wno-format-zero-length

  6237. check_disable_warning -Wno-pointer-sign

  6238. check_disable_warning -Wno-unused-const-variable

  6239. 

  6240. check_disable_warning_headers(){

  6241.     warning_flag=-W${1#-Wno-}

  6242.     test_cflags $warning_flag && add_cflags_headers $1

  6243. }

  6244. 

  6245. check_disable_warning_headers -Wno-deprecated-declarations

  6246. check_disable_warning_headers -Wno-unused-variable

  6247. 

  6248. check_cc <<EOF && enable blocks_extension

  6249. void (^block)(void);

  6250. EOF

  6251. 

  6252. # add some linker flags

  6253. check_ldflags -Wl,--warn-common

  6254. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6255. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6256. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6257. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6258. 

  6259. # add some strip flags

  6260. check_stripflags -x

  6261. 

  6262. enabled neon_clobber_test &&

  6263.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6264.                   -Wl,--wrap,avcodec_decode_audio4      \

  6265.                   -Wl,--wrap,avcodec_decode_video2      \

  6266.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6267.                   -Wl,--wrap,avcodec_encode_audio2      \

  6268.                   -Wl,--wrap,avcodec_encode_video2      \

  6269.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6270.                   -Wl,--wrap,avcodec_send_packet        \

  6271.                   -Wl,--wrap,avcodec_receive_packet     \

  6272.                   -Wl,--wrap,avcodec_send_frame         \

  6273.                   -Wl,--wrap,avcodec_receive_frame      \

  6274.                   -Wl,--wrap,swr_convert                \

  6275.                   -Wl,--wrap,avresample_convert ||

  6276.     disable neon_clobber_test

  6277. 

  6278. enabled xmm_clobber_test &&

  6279.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6280.                   -Wl,--wrap,avcodec_decode_audio4      \

  6281.                   -Wl,--wrap,avcodec_decode_video2      \

  6282.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6283.                   -Wl,--wrap,avcodec_encode_audio2      \

  6284.                   -Wl,--wrap,avcodec_encode_video2      \

  6285.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6286.                   -Wl,--wrap,avcodec_send_packet        \

  6287.                   -Wl,--wrap,avcodec_receive_packet     \

  6288.                   -Wl,--wrap,avcodec_send_frame         \

  6289.                   -Wl,--wrap,avcodec_receive_frame      \

  6290.                   -Wl,--wrap,swr_convert                \

  6291.                   -Wl,--wrap,avresample_convert         \

  6292.                   -Wl,--wrap,sws_scale ||

  6293.     disable xmm_clobber_test

  6294. 

  6295. check_ld "cc" <<EOF && enable proper_dce

  6296. extern const int array[512];

  6297. static inline int func(void) { return array[0]; }

  6298. int main(void) { return 0; }

  6299. EOF

  6300. 

  6301. if enabled proper_dce; then

  6302.     echo "X { local: *; };" > $TMPV

  6303.     if test_ldflags -Wl,${version_script},$TMPV; then

  6304.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6305.         check_cc <<EOF && enable symver_asm_label

  6306. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6307. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6308. EOF

  6309.         check_cc <<EOF && enable symver_gnu_asm

  6310. __asm__(".symver ff_foo,av_foo@VERSION");

  6311. void ff_foo(void) {}

  6312. EOF

  6313.     fi

  6314. fi

  6315. 

  6316. if [ -z "$optflags" ]; then

  6317.     if enabled small; then

  6318.         optflags=$cflags_size

  6319.     elif enabled optimizations; then

  6320.         optflags=$cflags_speed

  6321.     else

  6322.         optflags=$cflags_noopt

  6323.     fi

  6324. fi

  6325. 

  6326. if [ -z "$nvccflags" ]; then

  6327.     nvccflags=$nvccflags_default

  6328. fi

  6329. 

  6330. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6331.     nvccflags="$nvccflags -m64"

  6332. else

  6333.     nvccflags="$nvccflags -m32"

  6334. fi

  6335. 

  6336. check_optflags(){

  6337.     check_cflags "$@"

  6338.     enabled lto && check_ldflags "$@"

  6339. }

  6340. 

  6341. check_optflags $optflags

  6342. check_optflags -fno-math-errno

  6343. check_optflags -fno-signed-zeros

  6344. 

  6345. if enabled lto; then

  6346.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6347.     check_cflags  -flto

  6348.     check_ldflags -flto $cpuflags

  6349.     disable inline_asm_direct_symbol_refs

  6350. fi

  6351. 

  6352. enabled ftrapv && check_cflags -ftrapv

  6353. 

  6354. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6355. int x;

  6356. EOF

  6357. 

  6358. 

  6359. if enabled icc; then

  6360.     # Just warnings, no remarks

  6361.     check_cflags -w1

  6362.     # -wd: Disable following warnings

  6363.     # 144, 167, 556: -Wno-pointer-sign

  6364.     # 188: enumerated type mixed with another type

  6365.     # 1292: attribute "foo" ignored

  6366.     # 1419: external declaration in primary source file

  6367.     # 10006: ignoring unknown option -fno-signed-zeros

  6368.     # 10148: ignoring unknown option -Wno-parentheses

  6369.     # 10156: ignoring option '-W'; no argument required

  6370.     # 13200: No EMMS instruction before call to function

  6371.     # 13203: No EMMS instruction before return from function

  6372.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6373.     # 11030: Warning unknown option --as-needed

  6374.     # 10156: ignoring option '-export'; no argument required

  6375.     check_ldflags -wd10156,11030

  6376.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6377.     enable ebp_available

  6378.     # The test above does not test linking

  6379.     enabled lto && disable symver_asm_label

  6380.     if enabled x86_32; then

  6381.         icc_version=$($cc -dumpversion)

  6382.         test ${icc_version%%.*} -ge 11 &&

  6383.             check_cflags -falign-stack=maintain-16-byte ||

  6384.             disable aligned_stack

  6385.     fi

  6386. elif enabled ccc; then

  6387.     # disable some annoying warnings

  6388.     add_cflags -msg_disable bitnotint

  6389.     add_cflags -msg_disable mixfuncvoid

  6390.     add_cflags -msg_disable nonstandcast

  6391.     add_cflags -msg_disable unsupieee

  6392. elif enabled gcc; then

  6393.     check_optflags -fno-tree-vectorize

  6394.     check_cflags -Werror=format-security

  6395.     check_cflags -Werror=implicit-function-declaration

  6396.     check_cflags -Werror=missing-prototypes

  6397.     check_cflags -Werror=return-type

  6398.     check_cflags -Werror=vla

  6399.     check_cflags -Wformat

  6400.     check_cflags -fdiagnostics-color=auto

  6401.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6402. elif enabled llvm_gcc; then

  6403.     check_cflags -mllvm -stack-alignment=16

  6404. elif enabled clang; then

  6405.     check_cflags -mllvm -stack-alignment=16

  6406.     check_cflags -mstack-alignment=16

  6407.     check_cflags -Qunused-arguments

  6408.     check_cflags -Werror=implicit-function-declaration

  6409.     check_cflags -Werror=missing-prototypes

  6410.     check_cflags -Werror=return-type

  6411. elif enabled cparser; then

  6412.     add_cflags -Wno-missing-variable-declarations

  6413.     add_cflags -Wno-empty-statement

  6414. elif enabled armcc; then

  6415.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6416.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6417.     # 2523: use of inline assembly is deprecated

  6418.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6419.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6420.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6421.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6422.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6423.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6424. elif enabled tms470; then

  6425.     add_cflags -pds=824 -pds=837

  6426.     disable inline_asm

  6427. elif enabled pathscale; then

  6428.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6429. elif enabled_any msvc icl; then

  6430.     enabled x86_32 && disable aligned_stack

  6431.     enabled_all x86_32 debug && add_cflags -Oy-

  6432.     enabled debug && add_ldflags -debug

  6433.     enable pragma_deprecated

  6434.     if enabled icl; then

  6435.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6436.         # (correctly) on icl 13.x.

  6437.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6438.             add_cflags -Qansi-alias

  6439.         # Some inline asm is not compilable in debug

  6440.         if enabled debug; then

  6441.             disable ebp_available

  6442.             disable ebx_available

  6443.         fi

  6444.     fi

  6445.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6446.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6447.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6448.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6449.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6450.     # MSVC 2013 and newer can handle it fine.

  6451.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6452.     # happens in config.h.

  6453.     if [ $_restrict != restrict ]; then

  6454.         check_cc <<EOF || add_cflags -FIstdlib.h

  6455. __declspec($_restrict) void* foo(int);

  6456. EOF

  6457.     fi

  6458.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6459.     # Issue has been fixed in MSVC v19.00.24218.

  6460.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6461.         check_cflags -d2SSAOptimizer-

  6462.     # enable utf-8 source processing on VS2015 U2 and newer

  6463.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6464.         add_cflags -utf-8

  6465. fi

  6466. 

  6467. for pfx in "" host_; do

  6468.     varname=${pfx%_}cc_type

  6469.     eval "type=\$$varname"

  6470.     if [ "$type" = "msvc" ]; then

  6471.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6472. static inline int foo(int a) { return a; }

  6473. EOF

  6474.     fi

  6475. done

  6476. 

  6477. case $as_type in

  6478.     clang)

  6479.         add_asflags -Qunused-arguments

  6480.     ;;

  6481. esac

  6482. 

  6483. case $ld_type in

  6484.     clang)

  6485.         check_ldflags -Qunused-arguments

  6486.     ;;

  6487. esac

  6488. 

  6489. case $target_os in

  6490.     osf1)

  6491.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6492.     ;;

  6493. esac

  6494. 

  6495. enable frame_thread_encoder

  6496. 

  6497. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6498. 

  6499. check_deps $CONFIG_LIST       \

  6500.            $CONFIG_EXTRA      \

  6501.            $HAVE_LIST         \

  6502.            $ALL_COMPONENTS    \

  6503. 

  6504. 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"

  6505. 

  6506. 

  6507. if test $target_os = "haiku"; then

  6508.     disable memalign

  6509.     disable posix_memalign

  6510. fi

  6511. 

  6512. # add_dep lib dep

  6513. # -> enable ${lib}_deps_${dep}

  6514. # -> add $dep to ${lib}_deps only once

  6515. add_dep() {

  6516.     lib=$1

  6517.     dep=$2

  6518.     enabled "${lib}_deps_${dep}" && return 0

  6519.     enable  "${lib}_deps_${dep}"

  6520.     prepend "${lib}_deps" $dep

  6521. }

  6522. 

  6523. # merge deps lib components

  6524. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6525. merge_deps() {

  6526.     lib=$1

  6527.     shift

  6528.     for comp in $*; do

  6529.         enabled $comp || continue

  6530.         eval "dep=\"\$${comp}_deps\""

  6531.         for d in $dep; do

  6532.             add_dep $lib $d

  6533.         done

  6534.     done

  6535. }

  6536. 

  6537. merge_deps libavfilter $FILTER_LIST

  6538. 

  6539. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6540. 

  6541. for thread in $THREADS_LIST; do

  6542.     if enabled $thread; then

  6543.         test -n "$thread_type" &&

  6544.             die "ERROR: Only one thread type must be selected." ||

  6545.             thread_type="$thread"

  6546.     fi

  6547. done

  6548. 

  6549. if disabled stdatomic_h; then

  6550.     if enabled atomics_gcc; then

  6551.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6552.     elif enabled atomics_win32; then

  6553.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6554.     elif enabled atomics_suncc; then

  6555.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6556.     elif enabled pthreads; then

  6557.         add_compat atomics/pthread/stdatomic.o

  6558.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6559.     else

  6560.         enabled threads && die "Threading is enabled, but no atomics are available"

  6561.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6562.     fi

  6563. fi

  6564. 

  6565. # Check if requested libraries were found.

  6566. for lib in $AUTODETECT_LIBS; do

  6567.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6568. done

  6569. 

  6570. enabled zlib && add_cppflags -DZLIB_CONST

  6571. 

  6572. # conditional library dependencies, in linking order

  6573. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6574. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6575. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6576. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6577. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6578. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6579. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6580. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6581. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6582. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6583. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6584. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6585. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6586. enabled pan_filter          && prepend avfilter_deps "swresample"

  6587. enabled pp_filter           && prepend avfilter_deps "postproc"

  6588. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6589. enabled resample_filter && prepend avfilter_deps "avresample"

  6590. enabled sab_filter          && prepend avfilter_deps "swscale"

  6591. enabled scale_filter    && prepend avfilter_deps "swscale"

  6592. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6593. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6594. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6595. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6596. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6597. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6598. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6599. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6600. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6601. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6602. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6603. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6604. 

  6605. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6606. 

  6607. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6608. 

  6609. expand_deps(){

  6610.     lib_deps=${1}_deps

  6611.     eval "deps=\$$lib_deps"

  6612.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6613.     unique $lib_deps

  6614. }

  6615. 

  6616. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6617. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6618. 

  6619. map 'expand_deps $v' $LIBRARY_LIST

  6620. 

  6621. license="LGPL version 2.1 or later"

  6622. if enabled nonfree; then

  6623.     license="nonfree and unredistributable"

  6624. elif enabled gplv3; then

  6625.     license="GPL version 3 or later"

  6626. elif enabled lgplv3; then

  6627.     license="LGPL version 3 or later"

  6628. elif enabled gpl; then

  6629.     license="GPL version 2 or later"

  6630. fi

  6631. 

  6632. if test "$quiet" != "yes"; then

  6633. 

  6634. echo "install prefix            $prefix"

  6635. echo "source path               $source_path"

  6636. echo "C compiler                $cc"

  6637. echo "C library                 $libc_type"

  6638. if test "$host_cc" != "$cc"; then

  6639.     echo "host C compiler           $host_cc"

  6640.     echo "host C library            $host_libc_type"

  6641. fi

  6642. echo "ARCH                      $arch ($cpu)"

  6643. if test "$build_suffix" != ""; then

  6644.     echo "build suffix              $build_suffix"

  6645. fi

  6646. if test "$progs_suffix" != ""; then

  6647.     echo "progs suffix              $progs_suffix"

  6648. fi

  6649. if test "$extra_version" != ""; then

  6650.     echo "version string suffix     $extra_version"

  6651. fi

  6652. echo "big-endian                ${bigendian-no}"

  6653. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6654. if enabled x86; then

  6655.     echo "standalone assembly       ${x86asm-no}"

  6656.     echo "x86 assembler             ${x86asmexe}"

  6657.     echo "MMX enabled               ${mmx-no}"

  6658.     echo "MMXEXT enabled            ${mmxext-no}"

  6659.     echo "3DNow! enabled            ${amd3dnow-no}"

  6660.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6661.     echo "SSE enabled               ${sse-no}"

  6662.     echo "SSSE3 enabled             ${ssse3-no}"

  6663.     echo "AESNI enabled             ${aesni-no}"

  6664.     echo "AVX enabled               ${avx-no}"

  6665.     echo "AVX2 enabled              ${avx2-no}"

  6666.     echo "XOP enabled               ${xop-no}"

  6667.     echo "FMA3 enabled              ${fma3-no}"

  6668.     echo "FMA4 enabled              ${fma4-no}"

  6669.     echo "i686 features enabled     ${i686-no}"

  6670.     echo "CMOV is fast              ${fast_cmov-no}"

  6671.     echo "EBX available             ${ebx_available-no}"

  6672.     echo "EBP available             ${ebp_available-no}"

  6673. fi

  6674. if enabled aarch64; then

  6675.     echo "NEON enabled              ${neon-no}"

  6676.     echo "VFP enabled               ${vfp-no}"

  6677. fi

  6678. if enabled arm; then

  6679.     echo "ARMv5TE enabled           ${armv5te-no}"

  6680.     echo "ARMv6 enabled             ${armv6-no}"

  6681.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6682.     echo "VFP enabled               ${vfp-no}"

  6683.     echo "NEON enabled              ${neon-no}"

  6684.     echo "THUMB enabled             ${thumb-no}"

  6685. fi

  6686. if enabled mips; then

  6687.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6688.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6689.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6690.     echo "MIPS MSA enabled          ${msa-no}"

  6691.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6692. fi

  6693. if enabled ppc; then

  6694.     echo "AltiVec enabled           ${altivec-no}"

  6695.     echo "VSX enabled               ${vsx-no}"

  6696.     echo "POWER8 enabled            ${power8-no}"

  6697.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6698.     echo "dcbzl available           ${dcbzl-no}"

  6699. fi

  6700. echo "debug symbols             ${debug-no}"

  6701. echo "strip symbols             ${stripping-no}"

  6702. echo "optimize for size         ${small-no}"

  6703. echo "optimizations             ${optimizations-no}"

  6704. echo "static                    ${static-no}"

  6705. echo "shared                    ${shared-no}"

  6706. echo "postprocessing support    ${postproc-no}"

  6707. echo "network support           ${network-no}"

  6708. echo "threading support         ${thread_type-no}"

  6709. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6710. echo "texi2html enabled         ${texi2html-no}"

  6711. echo "perl enabled              ${perl-no}"

  6712. echo "pod2man enabled           ${pod2man-no}"

  6713. echo "makeinfo enabled          ${makeinfo-no}"

  6714. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6715. test -n "$random_seed" &&

  6716.     echo "random seed               ${random_seed}"

  6717. echo

  6718. 

  6719. echo "External libraries:"

  6720. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6721. echo

  6722. 

  6723. echo "External libraries providing hardware acceleration:"

  6724. print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns

  6725. echo

  6726. 

  6727. echo "Libraries:"

  6728. print_enabled '' $LIBRARY_LIST | print_in_columns

  6729. echo

  6730. 

  6731. echo "Programs:"

  6732. print_enabled '' $PROGRAM_LIST | print_in_columns

  6733. echo

  6734. 

  6735. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6736.     echo "Enabled ${type}s:"

  6737.     eval list=\$$(toupper $type)_LIST

  6738.     print_enabled '_*' $list | print_in_columns

  6739.     echo

  6740. done

  6741. 

  6742. if test -n "$ignore_tests"; then

  6743.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6744.     echo "Ignored FATE tests:"

  6745.     echo $ignore_tests | print_in_columns

  6746.     echo

  6747. fi

  6748. 

  6749. echo "License: $license"

  6750. 

  6751. echo "Creating configuration files ..."

  6752. 

  6753. fi # test "$quiet" != "yes"

  6754. 

  6755. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6756. 

  6757. enabled stripping || strip="echo skipping strip"

  6758. 

  6759. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6760. 

  6761. cat > ffbuild/config.mak <<EOF

  6762. # Automatically generated by configure - do not modify!

  6763. ifndef FFMPEG_CONFIG_MAK

  6764. FFMPEG_CONFIG_MAK=1

  6765. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6766. prefix=$prefix

  6767. LIBDIR=\$(DESTDIR)$libdir

  6768. SHLIBDIR=\$(DESTDIR)$shlibdir

  6769. INCDIR=\$(DESTDIR)$incdir

  6770. BINDIR=\$(DESTDIR)$bindir

  6771. DATADIR=\$(DESTDIR)$datadir

  6772. DOCDIR=\$(DESTDIR)$docdir

  6773. MANDIR=\$(DESTDIR)$mandir

  6774. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6775. INSTALL_NAME_DIR=$install_name_dir

  6776. SRC_PATH=$source_path

  6777. SRC_LINK=$source_link

  6778. ifndef MAIN_MAKEFILE

  6779. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6780. endif

  6781. CC_IDENT=$cc_ident

  6782. ARCH=$arch

  6783. INTRINSICS=$intrinsics

  6784. CC=$cc

  6785. CXX=$cxx

  6786. AS=$as

  6787. OBJCC=$objcc

  6788. LD=$ld

  6789. DEPCC=$dep_cc

  6790. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6791. DEPAS=$as

  6792. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6793. X86ASM=$x86asmexe

  6794. DEPX86ASM=$x86asmexe

  6795. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6796. AR=$ar

  6797. ARFLAGS=$arflags

  6798. AR_O=$ar_o

  6799. RANLIB=$ranlib

  6800. STRIP=$strip

  6801. NVCC=$nvcc

  6802. CP=cp -p

  6803. LN_S=$ln_s

  6804. CPPFLAGS=$CPPFLAGS

  6805. CFLAGS=$CFLAGS

  6806. CXXFLAGS=$CXXFLAGS

  6807. OBJCFLAGS=$OBJCFLAGS

  6808. ASFLAGS=$ASFLAGS

  6809. NVCCFLAGS=$nvccflags

  6810. AS_C=$AS_C

  6811. AS_O=$AS_O

  6812. OBJCC_C=$OBJCC_C

  6813. OBJCC_E=$OBJCC_E

  6814. OBJCC_O=$OBJCC_O

  6815. CC_C=$CC_C

  6816. CC_E=$CC_E

  6817. CC_O=$CC_O

  6818. CXX_C=$CXX_C

  6819. CXX_O=$CXX_O

  6820. NVCC_C=$NVCC_C

  6821. NVCC_O=$NVCC_O

  6822. LD_O=$LD_O

  6823. X86ASM_O=$X86ASM_O

  6824. LD_LIB=$LD_LIB

  6825. LD_PATH=$LD_PATH

  6826. DLLTOOL=$dlltool

  6827. WINDRES=$windres

  6828. DEPWINDRES=$dep_cc

  6829. DOXYGEN=$doxygen

  6830. LDFLAGS=$LDFLAGS

  6831. LDEXEFLAGS=$LDEXEFLAGS

  6832. LDLIBFLAGS=$LDLIBFLAGS

  6833. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6834. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6835. X86ASMFLAGS=$X86ASMFLAGS

  6836. BUILDSUF=$build_suffix

  6837. PROGSSUF=$progs_suffix

  6838. FULLNAME=$FULLNAME

  6839. LIBPREF=$LIBPREF

  6840. LIBSUF=$LIBSUF

  6841. LIBNAME=$LIBNAME

  6842. SLIBPREF=$SLIBPREF

  6843. SLIBSUF=$SLIBSUF

  6844. EXESUF=$EXESUF

  6845. EXTRA_VERSION=$extra_version

  6846. CCDEP=$CCDEP

  6847. CXXDEP=$CXXDEP

  6848. CCDEP_FLAGS=$CCDEP_FLAGS

  6849. ASDEP=$ASDEP

  6850. ASDEP_FLAGS=$ASDEP_FLAGS

  6851. X86ASMDEP=$X86ASMDEP

  6852. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6853. CC_DEPFLAGS=$CC_DEPFLAGS

  6854. AS_DEPFLAGS=$AS_DEPFLAGS

  6855. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6856. HOSTCC=$host_cc

  6857. HOSTLD=$host_ld

  6858. HOSTCFLAGS=$host_cflags

  6859. HOSTCPPFLAGS=$host_cppflags

  6860. HOSTEXESUF=$HOSTEXESUF

  6861. HOSTLDFLAGS=$host_ldflags

  6862. HOSTEXTRALIBS=$host_extralibs

  6863. DEPHOSTCC=$host_cc

  6864. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6865. HOSTCCDEP=$HOSTCCDEP

  6866. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6867. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6868. HOSTCC_C=$HOSTCC_C

  6869. HOSTCC_O=$HOSTCC_O

  6870. HOSTLD_O=$HOSTLD_O

  6871. TARGET_EXEC=$target_exec $target_exec_args

  6872. TARGET_PATH=$target_path

  6873. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6874. CFLAGS-ffplay=${sdl2_cflags}

  6875. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6876. ZLIB=$($ldflags_filter -lz)

  6877. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6878. EXTRALIBS=$extralibs

  6879. COMPAT_OBJS=$compat_objs

  6880. INSTALL=$install

  6881. LIBTARGET=${LIBTARGET}

  6882. SLIBNAME=${SLIBNAME}

  6883. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6884. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6885. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6886. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6887. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6888. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6889. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6890. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6891. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6892. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6893. NOREDZONE_FLAGS=$noredzone_flags

  6894. LIBFUZZER_PATH=$libfuzzer_path

  6895. IGNORE_TESTS=$ignore_tests

  6896. EOF

  6897. 

  6898. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6899. 

  6900. print_program_extralibs(){

  6901.     eval "program_extralibs=\$${1}_extralibs"

  6902.     eval echo "EXTRALIBS-${1}=${program_extralibs}" >> ffbuild/config.mak

  6903. }

  6904. 

  6905. map 'print_program_extralibs $v' $PROGRAM_LIST

  6906. 

  6907. cat > $TMPH <<EOF

  6908. /* Automatically generated by configure - do not modify! */

  6909. #ifndef FFMPEG_CONFIG_H

  6910. #define FFMPEG_CONFIG_H

  6911. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6912. #define FFMPEG_LICENSE "$(c_escape $license)"

  6913. #define CONFIG_THIS_YEAR 2017

  6914. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6915. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6916. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6917. #define av_restrict $_restrict

  6918. #define EXTERN_PREFIX "${extern_prefix}"

  6919. #define EXTERN_ASM ${extern_prefix}

  6920. #define BUILDSUF "$build_suffix"

  6921. #define SLIBSUF "$SLIBSUF"

  6922. #define HAVE_MMX2 HAVE_MMXEXT

  6923. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6924. EOF

  6925. 

  6926. test -n "$assert_level" &&

  6927.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6928. 

  6929. test -n "$malloc_prefix" &&

  6930.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6931. 

  6932. if enabled x86asm; then

  6933.     append config_files $TMPASM

  6934.     printf '' >$TMPASM

  6935. fi

  6936. 

  6937. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6938. 

  6939. 

  6940. mkdir -p doc

  6941. mkdir -p tests

  6942. mkdir -p tests/api

  6943. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6944. 

  6945. print_config ARCH_   "$config_files" $ARCH_LIST

  6946. print_config HAVE_   "$config_files" $HAVE_LIST

  6947. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6948.                                      $CONFIG_EXTRA      \

  6949.                                      $ALL_COMPONENTS    \

  6950. 

  6951. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6952. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6953. 

  6954. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6955. cp_if_changed $TMPH config.h

  6956. touch ffbuild/.config

  6957. 

  6958. enabled x86asm && cp_if_changed $TMPASM config.asm

  6959. 

  6960. cat > $TMPH <<EOF

  6961. /* Generated by ffconf */

  6962. #ifndef AVUTIL_AVCONFIG_H

  6963. #define AVUTIL_AVCONFIG_H

  6964. EOF

  6965. 

  6966. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6967. 

  6968. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6969. 

  6970. cp_if_changed $TMPH libavutil/avconfig.h

  6971. 

  6972. # generate the lists of enabled components

  6973. print_enabled_components(){

  6974.     file=$1

  6975.     struct_name=$2

  6976.     name=$3

  6977.     shift 3

  6978.     echo "static const $struct_name *$name[] = {" > $TMPH

  6979.     for c in $*; do

  6980.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  6981.     done

  6982.     echo "    NULL };" >> $TMPH

  6983.     cp_if_changed $TMPH $file

  6984. }

  6985. 

  6986. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  6987. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  6988. 

  6989. if test -n "$WARNINGS"; then

  6990.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6991.     enabled fatal_warnings && exit 1

  6992. fi

  6993. 

  6994. # Settings for pkg-config files

  6995. 

  6996. cat > ffbuild/config.sh <<EOF

  6997. # Automatically generated by configure - do not modify!

  6998. shared=$shared

  6999. build_suffix=$build_suffix

  7000. prefix=$prefix

  7001. libdir=$libdir

  7002. incdir=$incdir

  7003. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7004. source_path=${source_path}

  7005. LIBPREF=${LIBPREF}

  7006. LIBSUF=${LIBSUF}

  7007. 

  7008. extralibs_avutil="$LIBRT $LIBM"

  7009. extralibs_avcodec="$extralibs"

  7010. extralibs_avformat="$extralibs"

  7011. extralibs_avdevice="$extralibs"

  7012. extralibs_avfilter="$extralibs"

  7013. extralibs_avresample="$LIBM"

  7014. extralibs_postproc=""

  7015. extralibs_swscale="$LIBM"

  7016. extralibs_swresample="$LIBM $LIBSOXR"

  7017. EOF

  7018. 

  7019. for lib in $LIBRARY_LIST; do

  7020.     lib_deps="$(eval echo \$${lib}_deps)"

  7021.     echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh

  7022. done