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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. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3052. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3053. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3054. xcbgrab_indev_deps="libxcb"

  3055. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

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

  3057. 

  3058. # protocols

  3059. async_protocol_deps="threads"

  3060. bluray_protocol_deps="libbluray"

  3061. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  3062. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3063. ffrtmpcrypt_protocol_select="tcp_protocol"

  3064. ffrtmphttp_protocol_deps="!librtmp_protocol"

  3065. ffrtmphttp_protocol_select="http_protocol"

  3066. ftp_protocol_select="tcp_protocol"

  3067. gopher_protocol_select="network"

  3068. http_protocol_select="tcp_protocol"

  3069. httpproxy_protocol_select="tcp_protocol"

  3070. https_protocol_select="tls_protocol"

  3071. icecast_protocol_select="http_protocol"

  3072. librtmp_protocol_deps="librtmp"

  3073. librtmpe_protocol_deps="librtmp"

  3074. librtmps_protocol_deps="librtmp"

  3075. librtmpt_protocol_deps="librtmp"

  3076. librtmpte_protocol_deps="librtmp"

  3077. libsmbclient_protocol_deps="libsmbclient gplv3"

  3078. libssh_protocol_deps="libssh"

  3079. mmsh_protocol_select="http_protocol"

  3080. mmst_protocol_select="network"

  3081. rtmp_protocol_deps="!librtmp_protocol"

  3082. rtmp_protocol_select="tcp_protocol"

  3083. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3084. rtmps_protocol_deps="!librtmp_protocol"

  3085. rtmps_protocol_select="tls_protocol"

  3086. rtmpt_protocol_select="ffrtmphttp_protocol"

  3087. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3088. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3089. rtp_protocol_select="udp_protocol"

  3090. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3091. sctp_protocol_select="network"

  3092. srtp_protocol_select="rtp_protocol srtp"

  3093. tcp_protocol_select="network"

  3094. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  3095. tls_gnutls_protocol_select="tcp_protocol"

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

  3097. tls_openssl_protocol_select="tcp_protocol"

  3098. tls_schannel_protocol_deps="schannel"

  3099. tls_schannel_protocol_select="tcp_protocol"

  3100. tls_securetransport_protocol_deps="securetransport"

  3101. tls_securetransport_protocol_select="tcp_protocol"

  3102. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3103. udp_protocol_select="network"

  3104. udplite_protocol_select="network"

  3105. unix_protocol_deps="sys_un_h"

  3106. unix_protocol_select="network"

  3107. 

  3108. # filters

  3109. afftfilt_filter_deps="avcodec"

  3110. afftfilt_filter_select="fft"

  3111. afir_filter_deps="avcodec"

  3112. afir_filter_select="fft"

  3113. amovie_filter_deps="avcodec avformat"

  3114. aresample_filter_deps="swresample"

  3115. ass_filter_deps="libass"

  3116. atempo_filter_deps="avcodec"

  3117. atempo_filter_select="rdft"

  3118. azmq_filter_deps="libzmq"

  3119. blackframe_filter_deps="gpl"

  3120. boxblur_filter_deps="gpl"

  3121. bs2b_filter_deps="libbs2b"

  3122. colormatrix_filter_deps="gpl"

  3123. cover_rect_filter_deps="avcodec avformat gpl"

  3124. cropdetect_filter_deps="gpl"

  3125. deinterlace_qsv_filter_deps="libmfx"

  3126. deinterlace_vaapi_filter_deps="vaapi"

  3127. delogo_filter_deps="gpl"

  3128. deshake_filter_select="pixelutils"

  3129. drawtext_filter_deps="libfreetype"

  3130. elbg_filter_deps="avcodec"

  3131. eq_filter_deps="gpl"

  3132. fftfilt_filter_deps="avcodec"

  3133. fftfilt_filter_select="rdft"

  3134. find_rect_filter_deps="avcodec avformat gpl"

  3135. firequalizer_filter_deps="avcodec"

  3136. firequalizer_filter_select="rdft"

  3137. flite_filter_deps="libflite"

  3138. framerate_filter_select="pixelutils"

  3139. frei0r_filter_deps="frei0r dlopen"

  3140. frei0r_src_filter_deps="frei0r dlopen"

  3141. fspp_filter_deps="gpl"

  3142. geq_filter_deps="gpl"

  3143. histeq_filter_deps="gpl"

  3144. hqdn3d_filter_deps="gpl"

  3145. interlace_filter_deps="gpl"

  3146. kerndeint_filter_deps="gpl"

  3147. ladspa_filter_deps="ladspa dlopen"

  3148. mcdeint_filter_deps="avcodec gpl"

  3149. movie_filter_deps="avcodec avformat"

  3150. mpdecimate_filter_deps="gpl"

  3151. mpdecimate_filter_select="pixelutils"

  3152. mptestsrc_filter_deps="gpl"

  3153. negate_filter_deps="lut_filter"

  3154. nnedi_filter_deps="gpl"

  3155. ocr_filter_deps="libtesseract"

  3156. ocv_filter_deps="libopencv"

  3157. owdenoise_filter_deps="gpl"

  3158. pan_filter_deps="swresample"

  3159. perspective_filter_deps="gpl"

  3160. phase_filter_deps="gpl"

  3161. pp7_filter_deps="gpl"

  3162. pp_filter_deps="gpl postproc"

  3163. pullup_filter_deps="gpl"

  3164. removelogo_filter_deps="avcodec avformat swscale"

  3165. repeatfields_filter_deps="gpl"

  3166. resample_filter_deps="avresample"

  3167. rubberband_filter_deps="librubberband"

  3168. sab_filter_deps="gpl swscale"

  3169. scale2ref_filter_deps="swscale"

  3170. scale_filter_deps="swscale"

  3171. scale_qsv_filter_deps="libmfx"

  3172. select_filter_select="pixelutils"

  3173. showcqt_filter_deps="avcodec avformat swscale"

  3174. showcqt_filter_select="fft"

  3175. showfreqs_filter_deps="avcodec"

  3176. showfreqs_filter_select="fft"

  3177. showspectrum_filter_deps="avcodec"

  3178. showspectrum_filter_select="fft"

  3179. showspectrumpic_filter_deps="avcodec"

  3180. showspectrumpic_filter_select="fft"

  3181. signature_filter_deps="gpl avcodec avformat"

  3182. smartblur_filter_deps="gpl swscale"

  3183. sofalizer_filter_deps="libmysofa avcodec"

  3184. sofalizer_filter_select="fft"

  3185. spectrumsynth_filter_deps="avcodec"

  3186. spectrumsynth_filter_select="fft"

  3187. spp_filter_deps="gpl avcodec"

  3188. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3189. stereo3d_filter_deps="gpl"

  3190. subtitles_filter_deps="avformat avcodec libass"

  3191. super2xsai_filter_deps="gpl"

  3192. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3193. tinterlace_filter_deps="gpl"

  3194. tinterlace_merge_test_deps="tinterlace_filter"

  3195. tinterlace_pad_test_deps="tinterlace_filter"

  3196. uspp_filter_deps="gpl avcodec"

  3197. vaguedenoiser_filter_deps="gpl"

  3198. vidstabdetect_filter_deps="libvidstab"

  3199. vidstabtransform_filter_deps="libvidstab"

  3200. libvmaf_filter_deps="libvmaf"

  3201. zmq_filter_deps="libzmq"

  3202. zoompan_filter_deps="swscale"

  3203. zscale_filter_deps="libzimg"

  3204. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3205. 

  3206. # examples

  3207. avio_dir_cmd_deps="avformat avutil"

  3208. avio_reading_deps="avformat avcodec avutil"

  3209. decode_audio_example_deps="avcodec avutil"

  3210. decode_video_example_deps="avcodec avutil"

  3211. demuxing_decoding_example_deps="avcodec avformat avutil"

  3212. encode_audio_example_deps="avcodec avutil"

  3213. encode_video_example_deps="avcodec avutil"

  3214. extract_mvs_example_deps="avcodec avformat avutil"

  3215. filter_audio_example_deps="avfilter avutil"

  3216. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3217. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3218. http_multiclient_example_deps="avformat avutil fork"

  3219. hw_decode_example_deps="avcodec avformat avutil"

  3220. metadata_example_deps="avformat avutil"

  3221. muxing_example_deps="avcodec avformat avutil swscale"

  3222. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3223. remuxing_example_deps="avcodec avformat avutil"

  3224. resampling_audio_example_deps="avutil swresample"

  3225. scaling_video_example_deps="avutil swscale"

  3226. transcode_aac_example_deps="avcodec avformat swresample"

  3227. transcoding_example_deps="avfilter avcodec avformat avutil"

  3228. 

  3229. # libraries, in linking order

  3230. avcodec_deps="avutil"

  3231. avcodec_select="null_bsf"

  3232. avdevice_deps="avformat avcodec avutil"

  3233. avfilter_deps="avutil"

  3234. avformat_deps="avcodec avutil"

  3235. avresample_deps="avutil"

  3236. postproc_deps="avutil gpl"

  3237. swresample_deps="avutil"

  3238. swscale_deps="avutil"

  3239. 

  3240. # programs

  3241. ffmpeg_deps="avcodec avfilter avformat swresample"

  3242. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3243.                null_filter

  3244.                trim_filter"

  3245. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3246. ffplay_extralibs='$sdl2_extralibs'

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

  3248. ffprobe_deps="avcodec avformat"

  3249. ffserver_deps="avformat fork sarestart"

  3250. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3251. 

  3252. # documentation

  3253. podpages_deps="perl"

  3254. manpages_deps="perl pod2man"

  3255. htmlpages_deps="perl"

  3256. htmlpages_deps_any="makeinfo_html texi2html"

  3257. txtpages_deps="perl makeinfo"

  3258. doc_deps_any="manpages htmlpages podpages txtpages"

  3259. 

  3260. # default parameters

  3261. 

  3262. logfile="ffbuild/config.log"

  3263. 

  3264. # installation paths

  3265. prefix_default="/usr/local"

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

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

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

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

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

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

  3272. 

  3273. # toolchain

  3274. ar_default="ar"

  3275. cc_default="gcc"

  3276. cxx_default="g++"

  3277. host_cc_default="gcc"

  3278. doxygen_default="doxygen"

  3279. install="install"

  3280. ln_s_default="ln -s -f"

  3281. nm_default="nm -g"

  3282. pkg_config_default=pkg-config

  3283. ranlib_default="ranlib"

  3284. strip_default="strip"

  3285. version_script='--version-script'

  3286. x86asmexe_default="nasm"

  3287. windres_default="windres"

  3288. nvcc_default="nvcc"

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

  3290. 

  3291. # OS

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

  3293. host_os=$target_os_default

  3294. 

  3295. # machine

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

  3297.     arch_default=$(uname -p)

  3298.     strip_default="strip -X32_64"

  3299. else

  3300.     arch_default=$(uname -m)

  3301. fi

  3302. cpu="generic"

  3303. intrinsics="none"

  3304. 

  3305. # configurable options

  3306. enable $PROGRAM_LIST

  3307. enable $DOCUMENT_LIST

  3308. enable $EXAMPLE_LIST

  3309. enable $(filter_out avresample $LIBRARY_LIST)

  3310. enable stripping

  3311. 

  3312. enable asm

  3313. enable debug

  3314. enable doc

  3315. enable faan faandct faanidct

  3316. enable optimizations

  3317. enable runtime_cpudetect

  3318. enable safe_bitstream_reader

  3319. enable static

  3320. enable swscale_alpha

  3321. enable valgrind_backtrace

  3322. 

  3323. sws_max_filter_size_default=256

  3324. set_default sws_max_filter_size

  3325. 

  3326. # build settings

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

  3328. LIBPREF="lib"

  3329. LIBSUF=".a"

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

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

  3332. SLIBPREF="lib"

  3333. SLIBSUF=".so"

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

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

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

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

  3338. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

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

  3340. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3341. 

  3342. asflags_filter=echo

  3343. cflags_filter=echo

  3344. ldflags_filter=echo

  3345. 

  3346. AS_C='-c'

  3347. AS_O='-o $@'

  3348. CC_C='-c'

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

  3350. CC_O='-o $@'

  3351. CXX_C='-c'

  3352. CXX_O='-o $@'

  3353. OBJCC_C='-c'

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

  3355. OBJCC_O='-o $@'

  3356. X86ASM_O='-o $@'

  3357. LD_O='-o $@'

  3358. LD_LIB='-l%'

  3359. LD_PATH='-L'

  3360. HOSTCC_C='-c'

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

  3362. HOSTCC_O='-o $@'

  3363. HOSTLD_O='-o $@'

  3364. NVCC_C='-c'

  3365. NVCC_O='-o $@'

  3366. 

  3367. host_extralibs='-lm'

  3368. host_cflags_filter=echo

  3369. host_ldflags_filter=echo

  3370. 

  3371. target_path='$(CURDIR)'

  3372. 

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

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

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

  3376. DEPFLAGS='-MM'

  3377. 

  3378. mkdir -p ffbuild

  3379. 

  3380. # find source path

  3381. if test -f configure; then

  3382.     source_path=.

  3383. else

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

  3385.     case "$source_path" in

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

  3387.     esac

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

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

  3390. fi

  3391. 

  3392. for v in "$@"; do

  3393.     r=${v#*=}

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

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

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

  3397. done

  3398. 

  3399. find_things(){

  3400.     thing=$1

  3401.     pattern=$2

  3402.     file=$source_path/$3

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

  3404. }

  3405. 

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

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

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

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

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

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

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

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

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

  3415. 

  3416. find_things_extern(){

  3417.     thing=$1

  3418.     pattern=$2

  3419.     file=$source_path/$3

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

  3421. }

  3422. 

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

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

  3425. 

  3426. ALL_COMPONENTS="

  3427.     $BSF_LIST

  3428.     $DECODER_LIST

  3429.     $DEMUXER_LIST

  3430.     $ENCODER_LIST

  3431.     $FILTER_LIST

  3432.     $HWACCEL_LIST

  3433.     $INDEV_LIST

  3434.     $MUXER_LIST

  3435.     $OUTDEV_LIST

  3436.     $PARSER_LIST

  3437.     $PROTOCOL_LIST

  3438. "

  3439. 

  3440. for n in $COMPONENT_LIST; do

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

  3442.     eval enable \$$v

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

  3444. done

  3445. 

  3446. enable $ARCH_EXT_LIST

  3447. 

  3448. die_unknown(){

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

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

  3451.     exit 1

  3452. }

  3453. 

  3454. print_in_columns() {

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

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

  3457. }

  3458. 

  3459. show_list() {

  3460.     suffix=_$1

  3461.     shift

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

  3463.     exit 0

  3464. }

  3465. 

  3466. rand_list(){

  3467.     IFS=', '

  3468.     set -- $*

  3469.     unset IFS

  3470.     for thing; do

  3471.         comp=${thing%:*}

  3472.         prob=${thing#$comp}

  3473.         prob=${prob#:}

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

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

  3476.         printf '%s\n' $comp

  3477.     done

  3478. }

  3479. 

  3480. do_random(){

  3481.     action=$1

  3482.     shift

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

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

  3485. }

  3486. 

  3487. for opt do

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

  3489.     case "$opt" in

  3490.         --extra-ldflags=*)

  3491.             add_ldflags $optval

  3492.         ;;

  3493.         --extra-ldexeflags=*)

  3494.             add_ldexeflags $optval

  3495.         ;;

  3496.         --extra-ldlibflags=*)

  3497.             add_ldlibflags $optval

  3498.         ;;

  3499.         --extra-libs=*)

  3500.             add_extralibs $optval

  3501.         ;;

  3502.         --disable-devices)

  3503.             disable $INDEV_LIST $OUTDEV_LIST

  3504.         ;;

  3505.         --enable-debug=*)

  3506.             debuglevel="$optval"

  3507.         ;;

  3508.         --disable-programs)

  3509.             disable $PROGRAM_LIST

  3510.         ;;

  3511.         --disable-everything)

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

  3513.         ;;

  3514.         --disable-all)

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

  3516.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3517.             enable avutil

  3518.         ;;

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

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

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

  3522.         ;;

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

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

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

  3526.         ;;

  3527.         --enable-sdl)

  3528.             enable sdl2

  3529.         ;;

  3530.         --enable-*=*|--disable-*=*)

  3531.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3532.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3533.             eval list=\$$(toupper $thing)_LIST

  3534.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3535.             list=$(filter "$name" $list)

  3536.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3537.             $action $list

  3538.         ;;

  3539.         --enable-yasm|--disable-yasm)

  3540.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3541.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3542.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3543.         ;;

  3544.         --yasmexe=*)

  3545.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3546.                  "removed in the future. Use --x86asmexe instead."

  3547.             x86asmexe="$optval"

  3548.         ;;

  3549.         --enable-?*|--disable-?*)

  3550.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3551.             if is_in $option $COMPONENT_LIST; then

  3552.                 test $action = disable && action=unset

  3553.                 eval $action \$$(toupper ${option%s})_LIST

  3554.             elif is_in $option $CMDLINE_SELECT; then

  3555.                 $action $option

  3556.             else

  3557.                 die_unknown $opt

  3558.             fi

  3559.         ;;

  3560.         --list-*)

  3561.             NAME="${opt#--list-}"

  3562.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3563.             NAME=${NAME%s}

  3564.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3565.         ;;

  3566.         --help|-h) show_help

  3567.         ;;

  3568.         --quiet|-q) quiet=yes

  3569.         ;;

  3570.         --fatal-warnings) enable fatal_warnings

  3571.         ;;

  3572.         --libfuzzer=*)

  3573.             libfuzzer_path="$optval"

  3574.         ;;

  3575.         *)

  3576.             optname="${opt%%=*}"

  3577.             optname="${optname#--}"

  3578.             optname=$(echo "$optname" | sed 's/-/_/g')

  3579.             if is_in $optname $CMDLINE_SET; then

  3580.                 eval $optname='$optval'

  3581.             elif is_in $optname $CMDLINE_APPEND; then

  3582.                 append $optname "$optval"

  3583.             else

  3584.                 die_unknown $opt

  3585.             fi

  3586.         ;;

  3587.     esac

  3588. done

  3589. 

  3590. for e in $env; do

  3591.     eval "export $e"

  3592. done

  3593. 

  3594. if disabled autodetect; then

  3595. 

  3596.     # Unless iconv is explicitely disabled by the user, we still want to probe

  3597.     # for the iconv from the libc.

  3598.     disabled iconv || enable libc_iconv

  3599. 

  3600.     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3601.     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3602. fi

  3603. # Mark specifically enabled, but normally autodetected libraries as requested.

  3604. for lib in $AUTODETECT_LIBS; do

  3605.     enabled $lib && request $lib

  3606. done

  3607. #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way

  3608. enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST

  3609. enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST

  3610. 

  3611. disabled logging && logfile=/dev/null

  3612. 

  3613. die_license_disabled() {

  3614.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3615. }

  3616. 

  3617. die_license_disabled_gpl() {

  3618.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3619. }

  3620. 

  3621. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3622. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3623. 

  3624. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3625. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3626. 

  3627. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3628. 

  3629. # Disable all the library-specific components if the library itself

  3630. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3631. 

  3632. disable_components(){

  3633.     disabled ${1} && disable $(

  3634.         eval components="\$$(toupper ${1})_COMPONENTS"

  3635.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3636.     )

  3637. }

  3638. 

  3639. map 'disable_components $v' $LIBRARY_LIST

  3640. 

  3641. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3642. set >> $logfile

  3643. 

  3644. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3645. 

  3646. enabled ossfuzz && {

  3647.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3648.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3649. }

  3650. 

  3651. case "$toolchain" in

  3652.     *-asan)

  3653.         cc_default="${toolchain%-asan}"

  3654.         add_cflags  -fsanitize=address

  3655.         add_ldflags -fsanitize=address

  3656.     ;;

  3657.     *-msan)

  3658.         cc_default="${toolchain%-msan}"

  3659.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3660.         add_ldflags -fsanitize=memory

  3661.     ;;

  3662.     *-tsan)

  3663.         cc_default="${toolchain%-tsan}"

  3664.         add_cflags  -fsanitize=thread -fPIE

  3665.         add_ldflags -fsanitize=thread -pie

  3666.         case "$toolchain" in

  3667.             gcc-tsan)

  3668.                 add_cflags  -fPIC

  3669.                 add_ldflags -fPIC

  3670.                 ;;

  3671.         esac

  3672.     ;;

  3673.     *-usan)

  3674.         cc_default="${toolchain%-usan}"

  3675.         add_cflags  -fsanitize=undefined

  3676.         add_ldflags -fsanitize=undefined

  3677.     ;;

  3678.     valgrind-*)

  3679.         target_exec_default="valgrind"

  3680.         case "$toolchain" in

  3681.             valgrind-massif)

  3682.                 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"

  3683.                 ;;

  3684.             valgrind-memcheck)

  3685.                 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"

  3686.                 ;;

  3687.         esac

  3688.     ;;

  3689.     msvc)

  3690.         # Check whether the current MSVC version needs the C99 converter.

  3691.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3692.         # support enough of C99 to build ffmpeg. Default to the new

  3693.         # behaviour if the regexp was unable to match anything, since this

  3694.         # successfully parses the version number of existing supported

  3695.         # versions that require the converter (MSVC 2010 and 2012).

  3696.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3697.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3698.             cc_default="cl"

  3699.             cxx_default="cl"

  3700.         else

  3701.             cc_default="c99wrap cl"

  3702.             cxx_default="c99wrap cl"

  3703.         fi

  3704.         ld_default="$source_path/compat/windows/mslink"

  3705.         nm_default="dumpbin -symbols"

  3706.         ar_default="lib"

  3707.         case "$arch" in

  3708.         arm*)

  3709.             as_default="armasm"

  3710.             ;;

  3711.         esac

  3712.         target_os_default="win32"

  3713.         # Use a relative path for TMPDIR. This makes sure all the

  3714.         # ffconf temp files are written with a relative path, avoiding

  3715.         # issues with msys/win32 path conversion for MSVC parameters

  3716.         # such as -Fo<file> or -out:<file>.

  3717.         TMPDIR=.

  3718.     ;;

  3719.     icl)

  3720.         cc_default="icl"

  3721.         ld_default="xilink"

  3722.         nm_default="dumpbin -symbols"

  3723.         ar_default="xilib"

  3724.         target_os_default="win32"

  3725.         TMPDIR=.

  3726.     ;;

  3727.     gcov)

  3728.         add_cflags  -fprofile-arcs -ftest-coverage

  3729.         add_ldflags -fprofile-arcs -ftest-coverage

  3730.     ;;

  3731.     llvm-cov)

  3732.         add_cflags -fprofile-arcs -ftest-coverage

  3733.         add_ldflags --coverage

  3734.     ;;

  3735.     hardened)

  3736.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3737.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3738.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3739.         add_cflags   -fPIE

  3740.         add_ldexeflags -fPIE -pie

  3741.     ;;

  3742.     ?*)

  3743.         die "Unknown toolchain $toolchain"

  3744.     ;;

  3745. esac

  3746. 

  3747. test -n "$cross_prefix" && enable cross_compile

  3748. 

  3749. if enabled cross_compile; then

  3750.     test -n "$arch" && test -n "$target_os" ||

  3751.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3752. fi

  3753. 

  3754. ar_default="${cross_prefix}${ar_default}"

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

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

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

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

  3759. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3760.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3761. else

  3762.     ranlib_default="${cross_prefix}${ranlib_default}"

  3763. fi

  3764. strip_default="${cross_prefix}${strip_default}"

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

  3766. 

  3767. sysinclude_default="${sysroot}/usr/include"

  3768. 

  3769. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3770.     target_exec target_os x86asmexe nvcc

  3771. enabled cross_compile || host_cc_default=$cc

  3772. set_default host_cc

  3773. 

  3774. pkg_config_fail_message=""

  3775. if ! $pkg_config --version >/dev/null 2>&1; then

  3776.     warn "$pkg_config not found, library detection may fail."

  3777.     pkg_config=false

  3778. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3779.     pkg_config_fail_message="

  3780. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3781. fi

  3782. 

  3783. if test $doxygen != $doxygen_default && \

  3784.   ! $doxygen --version >/dev/null 2>&1; then

  3785.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3786. fi

  3787. 

  3788. exesuf() {

  3789.     case $1 in

  3790.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3791.     esac

  3792. }

  3793. 

  3794. EXESUF=$(exesuf $target_os)

  3795. HOSTEXESUF=$(exesuf $host_os)

  3796. 

  3797. # set temporary file name

  3798. : ${TMPDIR:=$TEMPDIR}

  3799. : ${TMPDIR:=$TMP}

  3800. : ${TMPDIR:=/tmp}

  3801. 

  3802. if [ -n "$tempprefix" ] ; then

  3803.     mktemp(){

  3804.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3805.         echo "$tmpname"

  3806.         mkdir "$tmpname"

  3807.     }

  3808. elif ! check_cmd mktemp -u XXXXXX; then

  3809.     # simple replacement for missing mktemp

  3810.     # NOT SAFE FOR GENERAL USE

  3811.     mktemp(){

  3812.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3813.         echo "$tmpname"

  3814.         mkdir "$tmpname"

  3815.     }

  3816. fi

  3817. 

  3818. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3819.     die "Unable to create temporary directory in $TMPDIR."

  3820. 

  3821. tmpfile(){

  3822.     tmp="${FFTMPDIR}/test"$2

  3823.     (set -C; exec > $tmp) 2> /dev/null ||

  3824.         die "Unable to create temporary file in $FFTMPDIR."

  3825.     eval $1=$tmp

  3826. }

  3827. 

  3828. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3829. trap 'exit 2' INT

  3830. 

  3831. tmpfile TMPASM .asm

  3832. tmpfile TMPC   .c

  3833. tmpfile TMPCPP .cpp

  3834. tmpfile TMPE   $EXESUF

  3835. tmpfile TMPH   .h

  3836. tmpfile TMPM   .m

  3837. tmpfile TMPO   .o

  3838. tmpfile TMPS   .S

  3839. tmpfile TMPSH  .sh

  3840. tmpfile TMPV   .ver

  3841. 

  3842. unset -f mktemp

  3843. 

  3844. chmod +x $TMPE

  3845. 

  3846. # make sure we can execute files in $TMPDIR

  3847. cat > $TMPSH 2>> $logfile <<EOF

  3848. #! /bin/sh

  3849. EOF

  3850. chmod +x $TMPSH >> $logfile 2>&1

  3851. if ! $TMPSH >> $logfile 2>&1; then

  3852.     cat <<EOF

  3853. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3854. variable to another directory and make sure that it is not mounted noexec.

  3855. EOF

  3856.     die "Sanity test failed."

  3857. fi

  3858. 

  3859. armasm_flags(){

  3860.     for flag; do

  3861.         case $flag in

  3862.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3863.             # be passed to gas-preprocessor

  3864.             -M[TD]*)                                            ;;

  3865.             *)                  echo $flag                      ;;

  3866.         esac

  3867.    done

  3868. }

  3869. 

  3870. ccc_flags(){

  3871.     for flag; do

  3872.         case $flag in

  3873.             -std=c99)           echo -c99                       ;;

  3874.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3875.             -mieee)             echo -ieee                      ;;

  3876.             -O*|-fast)          echo $flag                      ;;

  3877.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3878.             -g)                 echo -g3                        ;;

  3879.             -Wall)              echo -msg_enable level2         ;;

  3880.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3881.             -Wl,*)              echo $flag                      ;;

  3882.             -f*|-W*)                                            ;;

  3883.             *)                  echo $flag                      ;;

  3884.         esac

  3885.    done

  3886. }

  3887. 

  3888. cparser_flags(){

  3889.     for flag; do

  3890.         case $flag in

  3891.             -Wno-switch)             echo -Wno-switch-enum ;;

  3892.             -Wno-format-zero-length) ;;

  3893.             -Wdisabled-optimization) ;;

  3894.             -Wno-pointer-sign)       echo -Wno-other ;;

  3895.             *)                       echo $flag ;;

  3896.         esac

  3897.     done

  3898. }

  3899. 

  3900. msvc_common_flags(){

  3901.     for flag; do

  3902.         case $flag in

  3903.             # In addition to specifying certain flags under the compiler

  3904.             # specific filters, they must be specified here as well or else the

  3905.             # generic catch all at the bottom will print the original flag.

  3906.             -Wall)                ;;

  3907.             -Wextra)              ;;

  3908.             -std=c99)             ;;

  3909.             # Common flags

  3910.             -fomit-frame-pointer) ;;

  3911.             -g)                   echo -Z7 ;;

  3912.             -fno-math-errno)      ;;

  3913.             -fno-common)          ;;

  3914.             -fno-signed-zeros)    ;;

  3915.             -fPIC)                ;;

  3916.             -mthumb)              ;;

  3917.             -march=*)             ;;

  3918.             -lz)                  echo zlib.lib ;;

  3919.             -lx264)               echo libx264.lib ;;

  3920.             -lstdc++)             ;;

  3921.             -l*)                  echo ${flag#-l}.lib ;;

  3922.             -LARGEADDRESSAWARE)   echo $flag ;;

  3923.             -L*)                  echo -libpath:${flag#-L} ;;

  3924.             *)                    echo $flag ;;

  3925.         esac

  3926.     done

  3927. }

  3928. 

  3929. msvc_flags(){

  3930.     msvc_common_flags "$@"

  3931.     for flag; do

  3932.         case $flag in

  3933.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  3934.                                        -wd4554 ;;

  3935.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3936.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3937.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3938.                                        -wd4307 \

  3939.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  3940.         esac

  3941.     done

  3942. }

  3943. 

  3944. icl_flags(){

  3945.     msvc_common_flags "$@"

  3946.     for flag; do

  3947.         case $flag in

  3948.             # Despite what Intel's documentation says -Wall, which is supported

  3949.             # on Windows, does enable remarks so disable them here.

  3950.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3951.             -std=c99)             echo -Qstd=c99 ;;

  3952.             -flto)                echo -ipo ;;

  3953.         esac

  3954.     done

  3955. }

  3956. 

  3957. icc_flags(){

  3958.     for flag; do

  3959.         case $flag in

  3960.             -flto)                echo -ipo ;;

  3961.             *)                    echo $flag ;;

  3962.         esac

  3963.     done

  3964. }

  3965. 

  3966. pgi_flags(){

  3967.     for flag; do

  3968.         case $flag in

  3969.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3970.             -fomit-frame-pointer) echo -Mnoframe ;;

  3971.             -g)                   echo -gopt ;;

  3972.             *)                    echo $flag ;;

  3973.         esac

  3974.     done

  3975. }

  3976. 

  3977. suncc_flags(){

  3978.     for flag; do

  3979.         case $flag in

  3980.             -march=*|-mcpu=*)

  3981.                 case "${flag#*=}" in

  3982.                     native)                   echo -xtarget=native       ;;

  3983.                     v9|niagara)               echo -xarch=sparc          ;;

  3984.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3985.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3986.                     i586|pentium)             echo -xchip=pentium        ;;

  3987.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3988.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3989.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3990.                     pentium4*)          echo -xtarget=pentium4           ;;

  3991.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3992.                     *-sse3)             echo -xarch=sse3                 ;;

  3993.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3994.                     bonnell)                   echo -xarch=ssse3         ;;

  3995.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3996.                     westmere)                  echo -xtarget=westmere    ;;

  3997.                     silvermont)                echo -xarch=sse4_2        ;;

  3998.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3999.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  4000.                                                echo -xarch=avx           ;;

  4001.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  4002.                     btver1)                    echo -xarch=amdsse4a      ;;

  4003.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  4004.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  4005.                     k8|opteron|athlon64|athlon-fx)

  4006.                                                echo -xarch=sse2a         ;;

  4007.                     athlon*)                   echo -xarch=pentium_proa  ;;

  4008.                 esac

  4009.                 ;;

  4010.             -std=c99)             echo -xc99              ;;

  4011.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  4012.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  4013.             -W*,*)                echo $flag              ;;

  4014.             -f*-*|-W*|-mimpure-text)                      ;;

  4015.             -shared)              echo -G                 ;;

  4016.             *)                    echo $flag              ;;

  4017.         esac

  4018.     done

  4019. }

  4020. 

  4021. tms470_flags(){

  4022.     for flag; do

  4023.         case $flag in

  4024.             -march=*|-mcpu=*)

  4025.                 case "${flag#*=}" in

  4026.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  4027.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  4028.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  4029.                     armv6*|arm11*)          echo -mv=6   ;;

  4030.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  4031.                                             echo -mv=5e  ;;

  4032.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  4033.                 esac

  4034.                 ;;

  4035.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  4036.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  4037.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  4038.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  4039.             -msoft-float)   echo --float_support=vfplib       ;;

  4040.             -O[0-3]|-mf=*)  echo $flag                        ;;

  4041.             -g)             echo -g -mn                       ;;

  4042.             -pds=*)         echo $flag                        ;;

  4043.             -D*|-I*)        echo $flag                        ;;

  4044.             --gcc|--abi=*)  echo $flag                        ;;

  4045.             -me)            echo $flag                        ;;

  4046.         esac

  4047.     done

  4048. }

  4049. 

  4050. probe_cc(){

  4051.     pfx=$1

  4052.     _cc=$2

  4053.     first=$3

  4054. 

  4055.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4056.     unset _ld_o _ldflags _ld_lib _ld_path

  4057.     unset _depflags _DEPCMD _DEPFLAGS

  4058.     _flags_filter=echo

  4059. 

  4060.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4061.         true # no-op to avoid reading stdin in following checks

  4062.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4063.         _type=llvm_gcc

  4064.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4065.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4066.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4067.         _cflags_speed='-O3'

  4068.         _cflags_size='-Os'

  4069.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4070.         _type=gcc

  4071.         gcc_version=$($_cc --version | head -n1)

  4072.         gcc_basever=$($_cc -dumpversion)

  4073.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4074.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4075.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4076.         case $gcc_basever in

  4077.             2) ;;

  4078.             2.*) ;;

  4079.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4080.         esac

  4081.         if [ "$first" = true ]; then

  4082.             case $gcc_basever in

  4083.                 4.2*)

  4084.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4085.             esac

  4086.         fi

  4087.         _cflags_speed='-O3'

  4088.         _cflags_size='-Os'

  4089.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4090.         _type=icc

  4091.         _ident=$($_cc --version | head -n1)

  4092.         _depflags='-MMD'

  4093.         _cflags_speed='-O3'

  4094.         _cflags_size='-Os'

  4095.         _cflags_noopt='-O1'

  4096.         _flags_filter=icc_flags

  4097.     elif $_cc -v 2>&1 | grep -q xlc; then

  4098.         _type=xlc

  4099.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4100.         _cflags_speed='-O5'

  4101.         _cflags_size='-O5 -qcompact'

  4102.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  4103.         _type=ccc

  4104.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  4105.         _DEPFLAGS='-M'

  4106.         _cflags_speed='-fast'

  4107.         _cflags_size='-O1'

  4108.         _flags_filter=ccc_flags

  4109.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4110.         test -d "$sysroot" || die "No valid sysroot specified."

  4111.         _type=armcc

  4112.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4113.         armcc_conf="$PWD/armcc.conf"

  4114.         $_cc --arm_linux_configure                 \

  4115.              --arm_linux_config_file="$armcc_conf" \

  4116.              --configure_sysroot="$sysroot"        \

  4117.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4118.              die "Error creating armcc configuration file."

  4119.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4120.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4121.         as_default="${cross_prefix}gcc"

  4122.         _depflags='-MMD'

  4123.         _cflags_speed='-O3'

  4124.         _cflags_size='-Os'

  4125.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  4126.         _type=tms470

  4127.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  4128.         _flags='--gcc --abi=eabi -me'

  4129.         _cc_e='-ppl -fe=$@'

  4130.         _cc_o='-fe=$@'

  4131.         _depflags='-ppa -ppd=$(@:.o=.d)'

  4132.         _cflags_speed='-O3 -mf=5'

  4133.         _cflags_size='-O3 -mf=2'

  4134.         _flags_filter=tms470_flags

  4135.     elif $_cc -v 2>&1 | grep -q clang; then

  4136.         _type=clang

  4137.         _ident=$($_cc --version 2>/dev/null | head -n1)

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

  4139.         _cflags_speed='-O3'

  4140.         _cflags_size='-Oz'

  4141.     elif $_cc -V 2>&1 | grep -q Sun; then

  4142.         _type=suncc

  4143.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4144.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4145.         _DEPFLAGS='-xM1 -xc99'

  4146.         _ldflags='-std=c99'

  4147.         _cflags_speed='-O5'

  4148.         _cflags_size='-O5 -xspace'

  4149.         _flags_filter=suncc_flags

  4150.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4151.         _type=pathscale

  4152.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4153.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4154.         _cflags_speed='-O2'

  4155.         _cflags_size='-Os'

  4156.         _flags_filter='filter_out -Wdisabled-optimization'

  4157.     elif $_cc -v 2>&1 | grep -q Open64; then

  4158.         _type=open64

  4159.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4160.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4161.         _cflags_speed='-O2'

  4162.         _cflags_size='-Os'

  4163.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4164.     elif $_cc -V 2>&1 | grep -q Portland; then

  4165.         _type=pgi

  4166.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  4167.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4168.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4169.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4170.         _cflags_noopt="-O"

  4171.         _flags_filter=pgi_flags

  4172.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4173.         _type=armasm

  4174.         _ident=$($_cc | head -n1)

  4175.         # 4509: "This form of conditional instruction is deprecated"

  4176.         _flags="-nologo -ignore 4509"

  4177.         _flags_filter=armasm_flags

  4178.     elif $_cc 2>&1 | grep -q Intel; then

  4179.         _type=icl

  4180.         _ident=$($_cc 2>&1 | head -n1)

  4181.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4182.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4183.         # versions (tested) as well.

  4184.         _cflags_speed="-O2"

  4185.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4186.         if $_cc 2>&1 | grep -q Linker; then

  4187.             _ld_o='-out:$@'

  4188.         else

  4189.             _ld_o='-Fe$@'

  4190.         fi

  4191.         _cc_o='-Fo$@'

  4192.         _cc_e='-P'

  4193.         _flags_filter=icl_flags

  4194.         _ld_lib='lib%.a'

  4195.         _ld_path='-libpath:'

  4196.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4197.         _flags='-nologo -Qdiag-error:4044,10157'

  4198.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4199.         # with MSVC which enables it by default.

  4200.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4201.         disable stripping

  4202.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4203.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4204.         # the -? parameter gives the help output which contains an identifyable

  4205.         # string, while it gives an error in other modes.

  4206.         _type=lld-link

  4207.         # The link.exe mode doesn't have a switch for getting the version,

  4208.         # but we can force it back to gnu mode and get the version from there.

  4209.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4210.         _ld_o='-out:$@'

  4211.         _flags_filter=msvc_flags

  4212.         _ld_lib='lib%.a'

  4213.         _ld_path='-libpath:'

  4214.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4215.         _type=msvc

  4216.         _ident=$($_cc 2>&1 | head -n1)

  4217.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4218.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4219.         _cflags_speed="-O2"

  4220.         _cflags_size="-O1"

  4221.         _cflags_noopt="-O1"

  4222.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4223.             _ld_o='-out:$@'

  4224.         else

  4225.             _ld_o='-Fe$@'

  4226.         fi

  4227.         _cc_o='-Fo$@'

  4228.         _cc_e='-P -Fi$@'

  4229.         _flags_filter=msvc_flags

  4230.         _ld_lib='lib%.a'

  4231.         _ld_path='-libpath:'

  4232.         _flags='-nologo'

  4233.         disable stripping

  4234.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4235.         _type=cparser

  4236.         _ident=$($_cc --version | head -n1)

  4237.         _depflags='-MMD'

  4238.         _cflags_speed='-O4'

  4239.         _cflags_size='-O2'

  4240.         _flags_filter=cparser_flags

  4241.     fi

  4242. 

  4243.     eval ${pfx}_type=\$_type

  4244.     eval ${pfx}_ident=\$_ident

  4245. }

  4246. 

  4247. set_ccvars(){

  4248.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4249.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4250.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4251. 

  4252.     if [ -n "$_depflags" ]; then

  4253.         eval ${1}_DEPFLAGS=\$_depflags

  4254.     else

  4255.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4256.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4257.         eval DEP${1}FLAGS=\$_flags

  4258.     fi

  4259. }

  4260. 

  4261. probe_cc cc "$cc" "true"

  4262. cflags_filter=$_flags_filter

  4263. cflags_speed=$_cflags_speed

  4264. cflags_size=$_cflags_size

  4265. cflags_noopt=$_cflags_noopt

  4266. add_cflags $_flags $_cflags

  4267. cc_ldflags=$_ldflags

  4268. set_ccvars CC

  4269. set_ccvars CXX

  4270. 

  4271. probe_cc hostcc "$host_cc"

  4272. host_cflags_filter=$_flags_filter

  4273. host_cflags_speed=$_cflags_speed

  4274. add_host_cflags  $_flags $_cflags

  4275. set_ccvars HOSTCC

  4276. 

  4277. test -n "$cc_type" && enable $cc_type ||

  4278.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4279. 

  4280. : ${as_default:=$cc}

  4281. : ${objcc_default:=$cc}

  4282. : ${dep_cc_default:=$cc}

  4283. : ${ld_default:=$cc}

  4284. : ${host_ld_default:=$host_cc}

  4285. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4286. 

  4287. probe_cc as "$as"

  4288. asflags_filter=$_flags_filter

  4289. add_asflags $_flags $_cflags

  4290. set_ccvars AS

  4291. 

  4292. probe_cc objcc "$objcc"

  4293. objcflags_filter=$_flags_filter

  4294. add_objcflags $_flags $_cflags

  4295. set_ccvars OBJC

  4296. 

  4297. probe_cc ld "$ld"

  4298. ldflags_filter=$_flags_filter

  4299. add_ldflags $_flags $_ldflags

  4300. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4301. LD_O=${_ld_o-$LD_O}

  4302. LD_LIB=${_ld_lib-$LD_LIB}

  4303. LD_PATH=${_ld_path-$LD_PATH}

  4304. 

  4305. probe_cc hostld "$host_ld"

  4306. host_ldflags_filter=$_flags_filter

  4307. add_host_ldflags $_flags $_ldflags

  4308. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4309. 

  4310. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4311.     probe_cc depcc "$dep_cc"

  4312.     CCDEP=${_DEPCMD:-$DEPCMD}

  4313.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4314.     DEPCCFLAGS=$_flags

  4315. fi

  4316. 

  4317. if $ar 2>&1 | grep -q Microsoft; then

  4318.     arflags="-nologo"

  4319.     ar_o='-out:$@'

  4320. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4321.     arflags="rq"

  4322.     ar_o='$@'

  4323. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4324.     arflags='-Xany -r -c'

  4325.     ar_o='$@'

  4326. elif $ar 2>&1 | grep -q "\[D\] "; then

  4327.     arflags="rcD"

  4328.     ar_o='$@'

  4329. else

  4330.     arflags="rc"

  4331.     ar_o='$@'

  4332. fi

  4333. 

  4334. add_cflags $extra_cflags

  4335. add_cxxflags $extra_cxxflags

  4336. add_objcflags $extra_objcflags

  4337. add_asflags $extra_cflags

  4338. 

  4339. if test -n "$sysroot"; then

  4340.     case "$cc_type" in

  4341.         gcc|llvm_gcc|clang)

  4342.             add_cppflags --sysroot="$sysroot"

  4343.             add_ldflags --sysroot="$sysroot"

  4344. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4345.             add_cppflags -isysroot "$sysroot"

  4346.             add_ldflags -isysroot "$sysroot"

  4347.         ;;

  4348.         tms470)

  4349.             add_cppflags -I"$sysinclude"

  4350.             add_ldflags  --sysroot="$sysroot"

  4351.         ;;

  4352.     esac

  4353. fi

  4354. 

  4355. if test "$cpu" = host; then

  4356.     enabled cross_compile &&

  4357.         die "--cpu=host makes no sense when cross-compiling."

  4358. 

  4359.     case "$cc_type" in

  4360.         gcc|llvm_gcc)

  4361.             check_native(){

  4362.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4363.                 sed -n "/cc1.*$1=/{

  4364.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4365.                             p

  4366.                             q

  4367.                         }" $TMPE

  4368.             }

  4369.             cpu=$(check_native -march || check_native -mcpu)

  4370.         ;;

  4371.         clang)

  4372.             check_native(){

  4373.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4374.                 sed -n "/cc1.*-target-cpu /{

  4375.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4376.                             p

  4377.                             q

  4378.                         }" $TMPE

  4379.             }

  4380.             cpu=$(check_native -march)

  4381.         ;;

  4382.     esac

  4383. 

  4384.     test "${cpu:-host}" = host &&

  4385.         die "--cpu=host not supported with compiler $cc"

  4386. fi

  4387. 

  4388. # Deal with common $arch aliases

  4389. case "$arch" in

  4390.     aarch64|arm64)

  4391.         arch="aarch64"

  4392.     ;;

  4393.     arm*|iPad*|iPhone*)

  4394.         arch="arm"

  4395.     ;;

  4396.     mips*|IP*)

  4397.         case "$arch" in

  4398.         *el)

  4399.             add_cppflags -EL

  4400.             add_ldflags -EL

  4401.         ;;

  4402.         *eb)

  4403.             add_cppflags -EB

  4404.             add_ldflags -EB

  4405.         ;;

  4406.         esac

  4407.         arch="mips"

  4408.     ;;

  4409.     parisc*|hppa*)

  4410.         arch="parisc"

  4411.     ;;

  4412.     "Power Macintosh"|ppc*|powerpc*)

  4413.         arch="ppc"

  4414.     ;;

  4415.     s390|s390x)

  4416.         arch="s390"

  4417.     ;;

  4418.     sh4|sh)

  4419.         arch="sh4"

  4420.     ;;

  4421.     sun4*|sparc*)

  4422.         arch="sparc"

  4423.     ;;

  4424.     tilegx|tile-gx)

  4425.         arch="tilegx"

  4426.     ;;

  4427.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4428.         arch="x86"

  4429.     ;;

  4430. esac

  4431. 

  4432. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4433. enable $arch

  4434. 

  4435. # Add processor-specific flags

  4436. if enabled aarch64; then

  4437. 

  4438.     case $cpu in

  4439.         armv*)

  4440.             cpuflags="-march=$cpu"

  4441.         ;;

  4442.         *)

  4443.             cpuflags="-mcpu=$cpu"

  4444.         ;;

  4445.     esac

  4446. 

  4447. elif enabled alpha; then

  4448. 

  4449.     cpuflags="-mcpu=$cpu"

  4450. 

  4451. elif enabled arm; then

  4452. 

  4453.     check_arm_arch() {

  4454.         check_cpp_condition stddef.h \

  4455.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4456.             $cpuflags

  4457.     }

  4458. 

  4459.     probe_arm_arch() {

  4460.         if   check_arm_arch 4;        then echo armv4

  4461.         elif check_arm_arch 4T;       then echo armv4t

  4462.         elif check_arm_arch 5;        then echo armv5

  4463.         elif check_arm_arch 5E;       then echo armv5e

  4464.         elif check_arm_arch 5T;       then echo armv5t

  4465.         elif check_arm_arch 5TE;      then echo armv5te

  4466.         elif check_arm_arch 5TEJ;     then echo armv5te

  4467.         elif check_arm_arch 6;        then echo armv6

  4468.         elif check_arm_arch 6J;       then echo armv6j

  4469.         elif check_arm_arch 6K;       then echo armv6k

  4470.         elif check_arm_arch 6Z;       then echo armv6z

  4471.         elif check_arm_arch 6ZK;      then echo armv6zk

  4472.         elif check_arm_arch 6T2;      then echo armv6t2

  4473.         elif check_arm_arch 7;        then echo armv7

  4474.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4475.         elif check_arm_arch 7S;       then echo armv7-a

  4476.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4477.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4478.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4479.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4480.         fi

  4481.     }

  4482. 

  4483.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4484. 

  4485.     case $cpu in

  4486.         armv*)

  4487.             cpuflags="-march=$cpu"

  4488.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4489.         ;;

  4490.         *)

  4491.             cpuflags="-mcpu=$cpu"

  4492.             case $cpu in

  4493.                 cortex-a*)                               subarch=armv7a  ;;

  4494.                 cortex-r*)                               subarch=armv7r  ;;

  4495.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4496.                 arm11*)                                  subarch=armv6   ;;

  4497.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4498.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4499.                 *)                             subarch=$(probe_arm_arch) ;;

  4500.             esac

  4501.         ;;

  4502.     esac

  4503. 

  4504.     case "$subarch" in

  4505.         armv5t*)    enable fast_clz                ;;

  4506.         armv[6-8]*)

  4507.             enable fast_clz

  4508.             disabled fast_unaligned || enable fast_unaligned

  4509.             ;;

  4510.     esac

  4511. 

  4512. elif enabled avr32; then

  4513. 

  4514.     case $cpu in

  4515.         ap7[02]0[0-2])

  4516.             subarch="avr32_ap"

  4517.             cpuflags="-mpart=$cpu"

  4518.         ;;

  4519.         ap)

  4520.             subarch="avr32_ap"

  4521.             cpuflags="-march=$cpu"

  4522.         ;;

  4523.         uc3[ab]*)

  4524.             subarch="avr32_uc"

  4525.             cpuflags="-mcpu=$cpu"

  4526.         ;;

  4527.         uc)

  4528.             subarch="avr32_uc"

  4529.             cpuflags="-march=$cpu"

  4530.         ;;

  4531.     esac

  4532. 

  4533. elif enabled bfin; then

  4534. 

  4535.     cpuflags="-mcpu=$cpu"

  4536. 

  4537. elif enabled mips; then

  4538. 

  4539.     cpuflags="-march=$cpu"

  4540. 

  4541.     if [ "$cpu" != "generic" ]; then

  4542.         disable mips32r2

  4543.         disable mips32r5

  4544.         disable mips64r2

  4545.         disable mips32r6

  4546.         disable mips64r6

  4547.         disable loongson2

  4548.         disable loongson3

  4549. 

  4550.         case $cpu in

  4551.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4552.                 enable mips32r2

  4553.                 disable msa

  4554.             ;;

  4555.             p5600|i6400|p6600)

  4556.                 disable mipsdsp

  4557.                 disable mipsdspr2

  4558.             ;;

  4559.             loongson*)

  4560.                 enable loongson2

  4561.                 enable loongson3

  4562.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4563.                 enable simd_align_16

  4564.                 enable fast_64bit

  4565.                 enable fast_clz

  4566.                 enable fast_cmov

  4567.                 enable fast_unaligned

  4568.                 disable aligned_stack

  4569.                 disable mipsfpu

  4570.                 disable mipsdsp

  4571.                 disable mipsdspr2

  4572.                 case $cpu in

  4573.                     loongson3*)

  4574.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4575.                     ;;

  4576.                     loongson2e)

  4577.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4578.                     ;;

  4579.                     loongson2f)

  4580.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4581.                     ;;

  4582.                 esac

  4583.             ;;

  4584.             *)

  4585.                 # Unknown CPU. Disable everything.

  4586.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4587.                 disable mipsfpu

  4588.                 disable mipsdsp

  4589.                 disable mipsdspr2

  4590.                 disable msa

  4591.                 disable mmi

  4592.             ;;

  4593.         esac

  4594. 

  4595.         case $cpu in

  4596.             24kc)

  4597.                 disable mipsfpu

  4598.                 disable mipsdsp

  4599.                 disable mipsdspr2

  4600.             ;;

  4601.             24kf*)

  4602.                 disable mipsdsp

  4603.                 disable mipsdspr2

  4604.             ;;

  4605.             24kec|34kc|1004kc)

  4606.                 disable mipsfpu

  4607.                 disable mipsdspr2

  4608.             ;;

  4609.             24kef*|34kf*|1004kf*)

  4610.                 disable mipsdspr2

  4611.             ;;

  4612.             74kc)

  4613.                 disable mipsfpu

  4614.             ;;

  4615.             p5600)

  4616.                 enable mips32r5

  4617.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4618.             ;;

  4619.             i6400)

  4620.                 enable mips64r6

  4621.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4622.             ;;

  4623.             p6600)

  4624.                 enable mips64r6

  4625.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4626.             ;;

  4627.         esac

  4628.     else

  4629.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4630.         warn 'generic cpu selected'

  4631.     fi

  4632. 

  4633. elif enabled ppc; then

  4634. 

  4635.     disable ldbrx

  4636. 

  4637.     case $(tolower $cpu) in

  4638.         601|ppc601|powerpc601)

  4639.             cpuflags="-mcpu=601"

  4640.             disable altivec

  4641.         ;;

  4642.         603*|ppc603*|powerpc603*)

  4643.             cpuflags="-mcpu=603"

  4644.             disable altivec

  4645.         ;;

  4646.         604*|ppc604*|powerpc604*)

  4647.             cpuflags="-mcpu=604"

  4648.             disable altivec

  4649.         ;;

  4650.         g3|75*|ppc75*|powerpc75*)

  4651.             cpuflags="-mcpu=750"

  4652.             disable altivec

  4653.         ;;

  4654.         g4|745*|ppc745*|powerpc745*)

  4655.             cpuflags="-mcpu=7450"

  4656.             disable vsx

  4657.         ;;

  4658.         74*|ppc74*|powerpc74*)

  4659.             cpuflags="-mcpu=7400"

  4660.             disable vsx

  4661.         ;;

  4662.         g5|970|ppc970|powerpc970)

  4663.             cpuflags="-mcpu=970"

  4664.             disable vsx

  4665.         ;;

  4666.         power[3-6]*)

  4667.             cpuflags="-mcpu=$cpu"

  4668.             disable vsx

  4669.         ;;

  4670.         power[7-8]*)

  4671.             cpuflags="-mcpu=$cpu"

  4672.         ;;

  4673.         cell)

  4674.             cpuflags="-mcpu=cell"

  4675.             enable ldbrx

  4676.             disable vsx

  4677.         ;;

  4678.         e500mc)

  4679.             cpuflags="-mcpu=e500mc"

  4680.             disable altivec

  4681.         ;;

  4682.         e500v2)

  4683.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4684.             disable altivec

  4685.             disable dcbzl

  4686.         ;;

  4687.         e500)

  4688.             cpuflags="-mcpu=8540 -mhard-float"

  4689.             disable altivec

  4690.             disable dcbzl

  4691.         ;;

  4692.     esac

  4693. 

  4694. elif enabled sparc; then

  4695. 

  4696.     case $cpu in

  4697.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4698.             cpuflags="-mcpu=$cpu"

  4699.         ;;

  4700.         ultrasparc*|niagara[234])

  4701.             cpuflags="-mcpu=$cpu"

  4702.         ;;

  4703.     esac

  4704. 

  4705. elif enabled x86; then

  4706. 

  4707.     case $cpu in

  4708.         i[345]86|pentium)

  4709.             cpuflags="-march=$cpu"

  4710.             disable i686

  4711.             disable mmx

  4712.         ;;

  4713.         # targets that do NOT support nopl and conditional mov (cmov)

  4714.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4715.             cpuflags="-march=$cpu"

  4716.             disable i686

  4717.         ;;

  4718.         # targets that do support nopl and conditional mov (cmov)

  4719.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4720.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4721.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4722.             cpuflags="-march=$cpu"

  4723.             enable i686

  4724.             enable fast_cmov

  4725.         ;;

  4726.         # targets that do support conditional mov but on which it's slow

  4727.         pentium4|pentium4m|prescott|nocona)

  4728.             cpuflags="-march=$cpu"

  4729.             enable i686

  4730.             disable fast_cmov

  4731.         ;;

  4732.     esac

  4733. 

  4734. fi

  4735. 

  4736. if [ "$cpu" != generic ]; then

  4737.     add_cflags  $cpuflags

  4738.     add_asflags $cpuflags

  4739.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4740. fi

  4741. 

  4742. # compiler sanity check

  4743. check_exec <<EOF

  4744. int main(void){ return 0; }

  4745. EOF

  4746. if test "$?" != 0; then

  4747.     echo "$cc is unable to create an executable file."

  4748.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4749.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4750.         echo "Only do this if you know what cross compiling means."

  4751.     fi

  4752.     die "C compiler test failed."

  4753. fi

  4754. 

  4755. add_cppflags -D_ISOC99_SOURCE

  4756. add_cxxflags -D__STDC_CONSTANT_MACROS

  4757. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4758. 

  4759. # some compilers silently accept -std=c11, so we also need to check that the

  4760. # version macro is defined properly

  4761. if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then

  4762.     add_cflags -std=c11

  4763. else

  4764.     check_cflags -std=c99

  4765. fi

  4766. 

  4767. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4768. #include <stdlib.h>

  4769. EOF

  4770. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4771. #include <stdlib.h>

  4772. EOF

  4773. 

  4774. add_host_cppflags -D_ISOC99_SOURCE

  4775. check_host_cflags -std=c99

  4776. check_host_cflags -Wall

  4777. check_host_cflags $host_cflags_speed

  4778. 

  4779. check_64bit(){

  4780.     arch32=$1

  4781.     arch64=$2

  4782.     expr=$3

  4783.     check_code cc "" "int test[2*($expr) - 1]" &&

  4784.         subarch=$arch64 || subarch=$arch32

  4785. }

  4786. 

  4787. case "$arch" in

  4788.     aarch64|alpha|ia64)

  4789.         spic=$shared

  4790.     ;;

  4791.     mips)

  4792.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4793.         spic=$shared

  4794.     ;;

  4795.     parisc)

  4796.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4797.         spic=$shared

  4798.     ;;

  4799.     ppc)

  4800.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4801.         spic=$shared

  4802.     ;;

  4803.     s390)

  4804.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4805.         spic=$shared

  4806.     ;;

  4807.     sparc)

  4808.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4809.         spic=$shared

  4810.     ;;

  4811.     x86)

  4812.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4813.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4814.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4815.             subarch=x86_64

  4816.         if test "$subarch" = "x86_64"; then

  4817.             spic=$shared

  4818.         fi

  4819.     ;;

  4820.     ppc)

  4821.         check_cc <<EOF && subarch="ppc64"

  4822.         int test[(int)sizeof(char*) - 7];

  4823. EOF

  4824.     ;;

  4825. esac

  4826. 

  4827. enable $subarch

  4828. enabled spic && enable_weak pic

  4829. 

  4830. enabled x86_64 && objformat=elf64 || objformat="elf32"

  4831. 

  4832. # OS specific

  4833. case $target_os in

  4834.     aix)

  4835.         SHFLAGS=-shared

  4836.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4837.         enabled shared && add_ldflags -Wl,-brtl

  4838.         ;;

  4839.     android)

  4840.         disable symver

  4841.         enable section_data_rel_ro

  4842.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4843.         SLIB_INSTALL_LINKS=

  4844.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4845.         ;;

  4846.     haiku)

  4847.         prefix_default="/boot/common"

  4848.         network_extralibs="-lnetwork"

  4849.         host_extralibs=

  4850.         ;;

  4851.     sunos)

  4852.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4853.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4854.         network_extralibs="-lsocket -lnsl"

  4855.         add_cppflags -D__EXTENSIONS__

  4856.         # When using suncc to build, the Solaris linker will mark

  4857.         # an executable with each instruction set encountered by

  4858.         # the Solaris assembler.  As our libraries contain their own

  4859.         # guards for processor-specific code, instead suppress

  4860.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4861.         enabled_all suncc x86 &&

  4862.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4863.             add_ldflags -Wl,-M,mapfile

  4864.         nm_default='nm -P -g'

  4865.         version_script='-M'

  4866.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4867.         ;;

  4868.     netbsd)

  4869.         disable symver

  4870.         oss_indev_extralibs="-lossaudio"

  4871.         oss_outdev_extralibs="-lossaudio"

  4872.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4873.         ;;

  4874.     openbsd|bitrig)

  4875.         disable symver

  4876.         SHFLAGS='-shared'

  4877.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4878.         SLIB_INSTALL_LINKS=

  4879.         oss_indev_extralibs="-lossaudio"

  4880.         oss_outdev_extralibs="-lossaudio"

  4881.         ;;

  4882.     dragonfly)

  4883.         disable symver

  4884.         ;;

  4885.     freebsd)

  4886.         ;;

  4887.     bsd/os)

  4888.         add_extralibs -lpoll -lgnugetopt

  4889.         strip="strip -d"

  4890.         ;;

  4891.     darwin)

  4892.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4893.         install_name_dir_default='$(SHLIBDIR)'

  4894.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4895.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4896.         strip="${strip} -x"

  4897.         add_ldflags -Wl,-dynamic,-search_paths_first

  4898.         SLIBSUF=".dylib"

  4899.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4900.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4901.         objformat="macho"

  4902.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4903.         enabled_any pic shared x86_64 ||

  4904.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4905.         check_header dispatch/dispatch.h &&

  4906.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4907.         version_script='-exported_symbols_list'

  4908.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4909.         ;;

  4910.     msys*)

  4911.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4912.         ;;

  4913.     mingw32*|mingw64*)

  4914.         if test $target_os = "mingw32ce"; then

  4915.             disable network

  4916.         else

  4917.             target_os=mingw32

  4918.         fi

  4919.         LIBTARGET=i386

  4920.         if enabled x86_64; then

  4921.             LIBTARGET="i386:x86-64"

  4922.         elif enabled arm; then

  4923.             LIBTARGET=arm-wince

  4924.         fi

  4925.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4926.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4927.         shlibdir_default="$bindir_default"

  4928.         SLIBPREF=""

  4929.         SLIBSUF=".dll"

  4930.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4931.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4932.         dlltool="${cross_prefix}dlltool"

  4933.         if check_cmd lib.exe -list; then

  4934.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4935.             if enabled x86_64; then

  4936.                 LIBTARGET=x64

  4937.             fi

  4938.         elif check_cmd $dlltool --version; then

  4939.             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)'

  4940.         fi

  4941.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4942.         SLIB_INSTALL_LINKS=

  4943.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4944.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4945.         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'

  4946.         enabled x86_64 && objformat="win64" || objformat="win32"

  4947.         ranlib=:

  4948.         enable dos_paths

  4949.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4950.         # Lets work around some stupidity in binutils.

  4951.         # ld will strip relocations from executables even though we need them

  4952.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4953.         # however ld then forgets what the entry point should be (oops) so we

  4954.         # have to manually (re)set it.

  4955.         if enabled x86_32; then

  4956.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4957.         elif enabled x86_64; then

  4958.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4959.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4960.             # Set image base >4GB for extra entropy with HEASLR

  4961.             add_ldexeflags -Wl,--image-base,0x140000000

  4962.             append SHFLAGS -Wl,--image-base,0x180000000

  4963.         fi

  4964.         ;;

  4965.     win32|win64)

  4966.         disable symver

  4967.         if enabled shared; then

  4968.             # Link to the import library instead of the normal static library

  4969.             # for shared libs.

  4970.             LD_LIB='%.lib'

  4971.             # Cannot build both shared and static libs with MSVC or icl.

  4972.             disable static

  4973.         fi

  4974.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4975.         shlibdir_default="$bindir_default"

  4976.         SLIBPREF=""

  4977.         SLIBSUF=".dll"

  4978.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4979.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4980.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4981.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4982.         SLIB_INSTALL_LINKS=

  4983.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4984.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4985.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4986.         enabled x86_64 && objformat="win64" || objformat="win32"

  4987.         ranlib=:

  4988.         enable dos_paths

  4989.         ;;

  4990.     cygwin*)

  4991.         target_os=cygwin

  4992.         shlibdir_default="$bindir_default"

  4993.         SLIBPREF="cyg"

  4994.         SLIBSUF=".dll"

  4995.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4996.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4997.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4998.         SLIB_INSTALL_LINKS=

  4999.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  5000.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  5001.         enabled x86_64 && objformat="win64" || objformat="win32"

  5002.         enable dos_paths

  5003.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  5004.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5005.         ;;

  5006.     *-dos|freedos|opendos)

  5007.         network_extralibs="-lsocket"

  5008.         objformat="coff"

  5009.         enable dos_paths

  5010.         add_cppflags -U__STRICT_ANSI__

  5011.         ;;

  5012.     linux)

  5013.         enable dv1394

  5014.         enable section_data_rel_ro

  5015.         ;;

  5016.     irix*)

  5017.         target_os=irix

  5018.         ranlib="echo ignoring ranlib"

  5019.         ;;

  5020.     os/2*)

  5021.         strip="lxlite -CS"

  5022.         objformat="aout"

  5023.         add_cppflags -D_GNU_SOURCE

  5024.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5025.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5026.         LIBSUF="_s.a"

  5027.         SLIBPREF=""

  5028.         SLIBSUF=".dll"

  5029.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5030.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5031.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5032.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5033.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5034.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5035.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5036.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5037.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5038.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5039.         SLIB_INSTALL_LINKS=

  5040.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5041.         enable dos_paths

  5042.         enable_weak os2threads

  5043.         ;;

  5044.     gnu/kfreebsd)

  5045.         add_cppflags -D_BSD_SOURCE

  5046.         ;;

  5047.     gnu)

  5048.         ;;

  5049.     qnx)

  5050.         add_cppflags -D_QNX_SOURCE

  5051.         network_extralibs="-lsocket"

  5052.         ;;

  5053.     symbian)

  5054.         SLIBSUF=".dll"

  5055.         enable dos_paths

  5056.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5057.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5058.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5059.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5060.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5061.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5062.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5063.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5064.         ;;

  5065.     osf1)

  5066.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  5067.         ;;

  5068.     minix)

  5069.         ;;

  5070.     none)

  5071.         ;;

  5072.     *)

  5073.         die "Unknown OS '$target_os'."

  5074.         ;;

  5075. esac

  5076. 

  5077. # test if creating links works

  5078. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5079. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5080. mkdir "$link_dest"

  5081. $ln_s "$link_dest" "$link_name"

  5082. touch "$link_dest/test_file"

  5083. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5084.     # create link to source path

  5085.     [ -e src ] && rm src

  5086.     $ln_s "$source_path" src

  5087.     source_link=src

  5088. else

  5089.     # creating directory links doesn't work

  5090.     # fall back to using the full source path

  5091.     source_link="$source_path"

  5092. fi

  5093. # cleanup

  5094. rm -r "$link_dest"

  5095. rm -r "$link_name"

  5096. 

  5097. # determine libc flavour

  5098. 

  5099. probe_libc(){

  5100.     pfx=$1

  5101.     pfx_no_=${pfx%_}

  5102.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5103.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5104.         eval ${pfx}libc_type=uclibc

  5105.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5106.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5107.         eval ${pfx}libc_type=glibc

  5108.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5109.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5110.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5111.         eval ${pfx}libc_type=newlib

  5112.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5113.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5114.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5115.         eval ${pfx}libc_type=mingw64

  5116.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5117.             add_compat msvcrt/snprintf.o

  5118.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5119.         fi

  5120.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5121.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5122.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5123.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5124.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5125.         eval ${pfx}libc_type=mingw32

  5126.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5127.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5128.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5129.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5130.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  5131.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5132.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5133.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5134.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5135.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5136.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5137.         eval ${pfx}libc_type=msvcrt

  5138.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5139.             if [ "$pfx" = host_ ]; then

  5140.                 add_host_cppflags -Dsnprintf=_snprintf

  5141.             else

  5142.                 add_compat strtod.o strtod=avpriv_strtod

  5143.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5144.                                              _snprintf=avpriv_snprintf  \

  5145.                                              vsnprintf=avpriv_vsnprintf

  5146.             fi

  5147.         fi

  5148.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5149.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5150.         # 0x601 by default unless something else is set by the user.

  5151.         # This can easily lead to us detecting functions only present

  5152.         # in such new versions and producing binaries requiring windows 7.0.

  5153.         # Therefore explicitly set the default to XP unless the user has

  5154.         # set something else on the command line.

  5155.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5156.         # family. For these cases, configure is free to use any functions

  5157.         # found in the SDK headers by default. (Alternatively, we could force

  5158.         # _WIN32_WINNT to 0x0602 in that case.)

  5159.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5160.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5161. #ifdef WINAPI_FAMILY

  5162. #include <winapifamily.h>

  5163. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5164. #error not desktop

  5165. #endif

  5166. #endif

  5167. EOF

  5168.         if [ "$pfx" = "" ]; then

  5169.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5170.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5171.         fi

  5172.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5173.         eval ${pfx}libc_type=klibc

  5174.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5175.         eval ${pfx}libc_type=bionic

  5176.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5177.         eval ${pfx}libc_type=solaris

  5178.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5179.     fi

  5180.     check_${pfx}cc <<EOF

  5181. #include <time.h>

  5182. void *v = localtime_r;

  5183. EOF

  5184. 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

  5185. #include <time.h>

  5186. void *v = localtime_r;

  5187. EOF

  5188. 

  5189. }

  5190. 

  5191. probe_libc

  5192. test -n "$libc_type" && enable libc_$libc_type

  5193. probe_libc host_

  5194. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5195. 

  5196. case $libc_type in

  5197.     bionic)

  5198.         add_compat strtod.o strtod=avpriv_strtod

  5199.         ;;

  5200. esac

  5201. 

  5202. # hacks for compiler/libc/os combinations

  5203. 

  5204. if enabled_all tms470 libc_glibc; then

  5205.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5206.     add_cppflags -D__USER_LABEL_PREFIX__=

  5207.     add_cppflags -D__builtin_memset=memset

  5208.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5209.     add_cflags   -pds=48    # incompatible redefinition of macro

  5210. fi

  5211. 

  5212. if enabled_all ccc libc_glibc; then

  5213.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  5214. fi

  5215. 

  5216. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5217.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5218. 

  5219. esc(){

  5220.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5221. }

  5222. 

  5223. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  5224. 

  5225. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5226. 

  5227. set_default libdir

  5228. : ${shlibdir_default:="$libdir"}

  5229. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5230. 

  5231. set_default $PATHS_LIST

  5232. set_default nm

  5233. 

  5234. # we need to build at least one lib type

  5235. if ! enabled_any static shared; then

  5236.     cat <<EOF

  5237. At least one library type must be built.

  5238. Specify --enable-static to build the static libraries or --enable-shared to

  5239. build the shared libraries as well. To only build the shared libraries specify

  5240. --disable-static in addition to --enable-shared.

  5241. EOF

  5242.     exit 1

  5243. fi

  5244. 

  5245. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5246. 

  5247. enable_weak_pic() {

  5248.     disabled pic && return

  5249.     enable pic

  5250.     add_cppflags -DPIC

  5251.     case "$target_os" in

  5252.     mingw*|cygwin*)

  5253.         ;;

  5254.     *)

  5255.         add_cflags -fPIC

  5256.         ;;

  5257.     esac

  5258.     add_asflags  -fPIC

  5259. }

  5260. 

  5261. enabled pic && enable_weak_pic

  5262. 

  5263. check_cc <<EOF || die "Symbol mangling check failed."

  5264. int ff_extern;

  5265. EOF

  5266. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5267. extern_prefix=${sym%%ff_extern*}

  5268. 

  5269. check_cc <<EOF && enable_weak inline_asm

  5270. void foo(void) { __asm__ volatile ("" ::); }

  5271. EOF

  5272. 

  5273. _restrict=

  5274. for restrict_keyword in restrict __restrict__ __restrict; do

  5275.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5276. void foo(char * $restrict_keyword p);

  5277. EOF

  5278. done

  5279. 

  5280. check_cc <<EOF && enable pragma_deprecated

  5281. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5282. EOF

  5283. 

  5284. check_cc <<EOF && enable attribute_packed

  5285. struct { int x; } __attribute__((packed)) x;

  5286. EOF

  5287. 

  5288. check_cc <<EOF && enable attribute_may_alias

  5289. union { int x; } __attribute__((may_alias)) x;

  5290. EOF

  5291. 

  5292. check_cc <<EOF || die "endian test failed"

  5293. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5294. EOF

  5295. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5296. 

  5297. if ! enabled ppc64 || enabled bigendian; then

  5298.     disable vsx

  5299. fi

  5300. 

  5301. check_gas() {

  5302.     log "check_gas using '$as' as AS"

  5303.     # :vararg is used on aarch64, arm and ppc altivec

  5304.     check_as <<EOF || return 1

  5305. .macro m n, y:vararg=0

  5306. \n: .int \y

  5307. .endm

  5308. m x

  5309. EOF

  5310.     # .altmacro is only used in arm asm

  5311.     ! enabled arm || check_as <<EOF || return 1

  5312. .altmacro

  5313. EOF

  5314.     enable gnu_as

  5315.     return 0

  5316. }

  5317. 

  5318. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5319.     nogas=:

  5320.     enabled_any arm aarch64 && nogas=die

  5321.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5322.     as_noop=-v

  5323. 

  5324.     case $as_type in

  5325.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5326.         gcc)  gaspp_as_type=gas ;;

  5327.         *)    gaspp_as_type=$as_type ;;

  5328.     esac

  5329. 

  5330.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5331. 

  5332.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5333.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5334.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5335. 

  5336.     if ! check_gas ; then

  5337.         as=${gas:=$as}

  5338.         check_gas || \

  5339.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5340.     fi

  5341. 

  5342.     check_as <<EOF && enable as_func

  5343. .func test

  5344. .endfunc

  5345. EOF

  5346. fi

  5347. 

  5348. check_inline_asm inline_asm_labels '"1:\n"'

  5349. 

  5350. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5351. 

  5352. if enabled aarch64; then

  5353.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5354.     # internal assembler in clang 3.3 does not support this instruction

  5355.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5356.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5357. 

  5358.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5359. 

  5360. elif enabled alpha; then

  5361. 

  5362.     check_cflags -mieee

  5363. 

  5364. elif enabled arm; then

  5365. 

  5366.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5367. 

  5368.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5369. float func(float a, float b){ return a+b; }

  5370. EOF

  5371. 

  5372.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5373. 

  5374.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5375.         enable vfp_args

  5376.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5377.         enable vfp_args

  5378.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5379.         case "${cross_prefix:-$cc}" in

  5380.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5381.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5382. __asm__ (".eabi_attribute 28, 1");

  5383. int main(void) { return 0; }

  5384. EOF

  5385.         esac

  5386.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5387.     fi

  5388. 

  5389.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5390.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5391.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5392.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5393.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5394.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5395.     enabled setend  && check_insn setend  'setend be'

  5396. 

  5397.     [ $target_os = linux ] || [ $target_os = android ] ||

  5398.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5399.             $ARCH_EXT_LIST_ARM

  5400. 

  5401.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5402. 

  5403.     check_as <<EOF && enable as_dn_directive

  5404. ra .dn d0.i16

  5405. .unreq ra

  5406. EOF

  5407.     check_as <<EOF && enable as_fpu_directive

  5408. .fpu neon

  5409. EOF

  5410. 

  5411.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5412.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5413.         check_as <<EOF && enable as_object_arch

  5414. .object_arch armv4

  5415. EOF

  5416. 

  5417.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5418. 

  5419. elif enabled mips; then

  5420. 

  5421.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5422.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5423.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5424. 

  5425.     # Enable minimum ISA based on selected options

  5426.     if enabled mips64; then

  5427.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5428.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5429.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5430.     else

  5431.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5432.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5433.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5434.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5435.     fi

  5436. 

  5437.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5438.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5439.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5440.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5441.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5442. 

  5443.     if enabled bigendian && enabled msa; then

  5444.         disable msa

  5445.     fi

  5446. 

  5447. elif enabled parisc; then

  5448. 

  5449.     if enabled gcc; then

  5450.         case $($cc -dumpversion) in

  5451.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5452.         esac

  5453.     fi

  5454. 

  5455. elif enabled ppc; then

  5456. 

  5457.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5458. 

  5459.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5460.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5461.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5462.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5463. 

  5464.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5465.     if enabled altivec; then

  5466.         check_cflags -maltivec -mabi=altivec &&

  5467.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5468.         check_cflags -faltivec

  5469. 

  5470.         # check if our compiler supports Motorola AltiVec C API

  5471.         check_cc <<EOF || disable altivec

  5472. $inc_altivec_h

  5473. int main(void) {

  5474.     vector signed int v1 = (vector signed int) { 0 };

  5475.     vector signed int v2 = (vector signed int) { 1 };

  5476.     v1 = vec_add(v1, v2);

  5477.     return 0;

  5478. }

  5479. EOF

  5480. 

  5481.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5482.     fi

  5483. 

  5484.     if enabled vsx; then

  5485.         check_cflags -mvsx &&

  5486.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5487.     fi

  5488. 

  5489.     if enabled power8; then

  5490.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5491.     fi

  5492. 

  5493. elif enabled x86; then

  5494. 

  5495.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5496.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5497. 

  5498.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5499. 

  5500.     # check whether EBP is available on x86

  5501.     # As 'i' is stored on the stack, this program will crash

  5502.     # if the base pointer is used to access it because the

  5503.     # base pointer is cleared in the inline assembly code.

  5504.     check_exec_crash <<EOF && enable ebp_available

  5505. volatile int i=0;

  5506. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5507. return i;

  5508. EOF

  5509. 

  5510.     # check whether EBX is available on x86

  5511.     check_inline_asm ebx_available '""::"b"(0)' &&

  5512.         check_inline_asm ebx_available '"":::"%ebx"'

  5513. 

  5514.     # check whether xmm clobbers are supported

  5515.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5516. 

  5517.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5518.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5519. 

  5520.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5521.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5522.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5523. 

  5524.     probe_x86asm(){

  5525.         x86asmexe_probe=$1

  5526.         if check_cmd $x86asmexe_probe -v; then

  5527.             x86asmexe=$x86asmexe_probe

  5528.             x86asm_type=nasm

  5529.             x86asm_debug="-g -F dwarf"

  5530.         elif check_cmd $x86asmexe_probe --version; then

  5531.             x86asmexe=$x86asmexe_probe

  5532.             x86asm_type=yasm

  5533.             x86asm_debug="-g dwarf2"

  5534.         fi

  5535.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5536.     }

  5537. 

  5538.     if ! disabled_any asm mmx x86asm; then

  5539.         disable x86asm

  5540.         for program in $x86asmexe nasm yasm; do

  5541.             probe_x86asm $program && break

  5542.         done

  5543.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5544.         test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5545.         test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5546.         X86ASMFLAGS="-f $objformat"

  5547.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5548.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5549.         case "$objformat" in

  5550.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5551.         esac

  5552. 

  5553.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5554.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5555.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5556.         check_x86asm "CPU amdnop" || disable cpunop

  5557.     fi

  5558. 

  5559.     case "$cpu" in

  5560.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5561.             disable fast_clz

  5562.         ;;

  5563.     esac

  5564. 

  5565. fi

  5566. 

  5567. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5568. 

  5569. check_ldflags -Wl,--as-needed

  5570. check_ldflags -Wl,-z,noexecstack

  5571. 

  5572. if check_func dlopen && check_func dlsym; then

  5573.     ldl=

  5574. elif check_func dlopen -ldl && check_func dlsym -ldl; then

  5575.     ldl=-ldl

  5576. fi

  5577. 

  5578. avisynth_demuxer_extralibs='$ldl'

  5579. cuda_extralibs='$ldl'

  5580. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5581. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5582. libndi_newtek_outdev_extralibs="$libndi_newtek_outdev_extralibs $ldl"

  5583. libndi_newtek_indev_extralibs="$libndi_newtek_indev_extralibs $ldl"

  5584. frei0r_filter_extralibs='$ldl'

  5585. frei0r_src_filter_extralibs='$ldl'

  5586. ladspa_filter_extralibs='$ldl'

  5587. nvenc_extralibs='$ldl'

  5588. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5589. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5590. 

  5591. if ! disabled network; then

  5592.     check_func getaddrinfo $network_extralibs

  5593.     check_func inet_aton $network_extralibs

  5594. 

  5595.     check_type netdb.h "struct addrinfo"

  5596.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5597.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5598.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5599.     check_type poll.h "struct pollfd"

  5600.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5601.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5602.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5603.     check_type netinet/in.h "struct sockaddr_in6"

  5604.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5605.     check_type "sys/types.h sys/socket.h" socklen_t

  5606. 

  5607.     # Prefer arpa/inet.h over winsock2

  5608.     if check_header arpa/inet.h ; then

  5609.         check_func closesocket

  5610.     elif check_header winsock2.h ; then

  5611.         check_func_headers winsock2.h closesocket -lws2 &&

  5612.             network_extralibs="-lws2" ||

  5613.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5614.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5615.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5616. 

  5617.         check_type ws2tcpip.h socklen_t

  5618.         check_type ws2tcpip.h "struct addrinfo"

  5619.         check_type ws2tcpip.h "struct group_source_req"

  5620.         check_type ws2tcpip.h "struct ip_mreq_source"

  5621.         check_type ws2tcpip.h "struct ipv6_mreq"

  5622.         check_type winsock2.h "struct pollfd"

  5623.         check_struct winsock2.h "struct sockaddr" sa_len

  5624.         check_type ws2tcpip.h "struct sockaddr_in6"

  5625.         check_type ws2tcpip.h "struct sockaddr_storage"

  5626.     else

  5627.         disable network

  5628.     fi

  5629. fi

  5630. 

  5631. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5632. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5633. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5634. check_builtin sarestart signal.h "SA_RESTART"

  5635. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5636. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5637. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5638. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5639. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5640. 

  5641. case "$custom_allocator" in

  5642.     jemalloc)

  5643.         # jemalloc by default does not use a prefix

  5644.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5645.     ;;

  5646.     tcmalloc)

  5647.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5648.         malloc_prefix=tc_

  5649.     ;;

  5650. esac

  5651. 

  5652. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5653. check_func  ${malloc_prefix}memalign            && enable memalign

  5654. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5655. 

  5656. check_func  access

  5657. check_func_headers stdlib.h arc4random

  5658. check_func_headers time.h clock_gettime ||

  5659.     { check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }

  5660. check_func  fcntl

  5661. check_func  fork

  5662. check_func  gethrtime

  5663. check_func  getopt

  5664. check_func  getrusage

  5665. check_func  gettimeofday

  5666. check_func  isatty

  5667. check_func  mach_absolute_time

  5668. check_func  mkstemp

  5669. check_func  mmap

  5670. check_func  mprotect

  5671. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5672. check_func_headers time.h nanosleep ||

  5673.     { check_lib nanosleep time.h nanosleep -lrt && LIBRT="-lrt"; }

  5674. check_func  sched_getaffinity

  5675. check_func  setrlimit

  5676. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5677. check_func  strerror_r

  5678. check_func  sysconf

  5679. check_func  sysctl

  5680. check_func  usleep

  5681. 

  5682. check_func_headers conio.h kbhit

  5683. check_func_headers io.h setmode

  5684. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5685. check_func_headers stdlib.h getenv

  5686. check_func_headers sys/stat.h lstat

  5687. 

  5688. check_func_headers windows.h GetProcessAffinityMask

  5689. check_func_headers windows.h GetProcessTimes

  5690. check_func_headers windows.h GetSystemTimeAsFileTime

  5691. check_func_headers windows.h LoadLibrary

  5692. check_func_headers windows.h MapViewOfFile

  5693. check_func_headers windows.h PeekNamedPipe

  5694. check_func_headers windows.h SetConsoleTextAttribute

  5695. check_func_headers windows.h SetConsoleCtrlHandler

  5696. check_func_headers windows.h Sleep

  5697. check_func_headers windows.h VirtualAlloc

  5698. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5699. check_func_headers glob.h glob

  5700. enabled xlib &&

  5701.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5702. 

  5703. check_header AudioToolbox/AudioToolbox.h

  5704. check_header d3d11.h

  5705. check_header direct.h

  5706. check_header dirent.h

  5707. check_header dlfcn.h

  5708. check_header dxgidebug.h

  5709. check_header dxva.h

  5710. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5711. check_header io.h

  5712. check_header libcrystalhd/libcrystalhd_if.h

  5713. check_header mach/mach_time.h

  5714. check_header malloc.h

  5715. check_header net/udplite.h

  5716. check_header poll.h

  5717. check_header sys/mman.h

  5718. check_header sys/param.h

  5719. check_header sys/resource.h

  5720. check_header sys/select.h

  5721. check_header sys/time.h

  5722. check_header sys/un.h

  5723. check_header termios.h

  5724. check_header unistd.h

  5725. check_header valgrind/valgrind.h

  5726. check_header VideoDecodeAcceleration/VDADecoder.h

  5727. check_header VideoToolbox/VideoToolbox.h

  5728. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5729. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5730. check_header windows.h

  5731. check_header X11/extensions/XvMClib.h

  5732. check_header asm/types.h

  5733. 

  5734. # it seems there are versions of clang in some distros that try to use the

  5735. # gcc headers, which explodes for stdatomic

  5736. # so we also check that atomics actually work here

  5737. check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5738. 

  5739. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5740. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5741. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5742. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5743. 

  5744. check_lib coreservices "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5745. 

  5746. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5747. 

  5748. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5749. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5750. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5751. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5752. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5753. 

  5754. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5755. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5756. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5757. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5758. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5759. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5760. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5761. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5762. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5763. 

  5764. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5765. 

  5766. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5767. 

  5768. if ! disabled w32threads && ! enabled pthreads; then

  5769.     check_func_headers "windows.h process.h" _beginthreadex &&

  5770.         enable w32threads || disable w32threads

  5771.     if ! enabled w32threads && enabled winrt; then

  5772.         check_func_headers "windows.h" CreateThread &&

  5773.             enable w32threads || disable w32threads

  5774.     fi

  5775. fi

  5776. 

  5777. # check for some common methods of building with pthread support

  5778. # do this before the optional library checks as some of them require pthreads

  5779. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5780.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5781.        check_lib pthreads pthread.h pthread_create -pthread; then

  5782.         add_cflags -pthread

  5783.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5784.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5785.         add_cflags -pthreads

  5786.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5787.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5788.         add_cflags -ldl -pthread

  5789.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5790.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5791.         :

  5792.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5793.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5794.         :

  5795.     elif check_func pthread_join && check_func pthread_create; then

  5796.         enable pthreads

  5797.     fi

  5798.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5799. fi

  5800. 

  5801. 

  5802. if enabled pthreads; then

  5803.   check_func pthread_cancel

  5804. fi

  5805. 

  5806. enabled pthreads &&

  5807.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

  5808. 

  5809. enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz

  5810. enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5811. enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma

  5812. 

  5813. check_lib libm math.h sin -lm && LIBM="-lm"

  5814. 

  5815. atan2f_args=2

  5816. copysign_args=2

  5817. hypot_args=2

  5818. ldexpf_args=2

  5819. powf_args=2

  5820. 

  5821. for func in $MATH_FUNCS; do

  5822.     eval check_mathfunc $func \${${func}_args:-1} $LIBM

  5823. done

  5824. 

  5825. for func in $COMPLEX_FUNCS; do

  5826.     eval check_complexfunc $func \${${func}_args:-1}

  5827. done

  5828. 

  5829. # these are off by default, so fail if requested and not available

  5830. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5831. enabled avfoundation_indev && { check_lib avfoundation_indev CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5832.                                 check_lib avfoundation_indev ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5833. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5834. enabled cuvid             && { enabled cuda ||

  5835.                                die "ERROR: CUVID requires CUDA"; }

  5836. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5837. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5838. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5839. enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&

  5840.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5841. enabled libndi_newtek     && { check_header Processing.NDI.Lib.h || die "ERROR: Processing.NDI.Lib.h header not found"; }

  5842. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5843. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5844. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5845. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5846. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5847. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5848. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5849. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5850. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5851. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5852.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5853.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5854. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5855. enabled libdc1394         && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new

  5856. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5857.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5858.                                  warn "using libfdk without pkg-config"; } }

  5859. 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"

  5860. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5861. enabled fontconfig        && enable libfontconfig

  5862. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5863. enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5864. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5865. enabled libgme            && { use_pkg_config libgme gme/gme.h gme_new_emu ||

  5866.                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }

  5867. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5868.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5869.                                done || die "ERROR: libgsm not found"; }

  5870. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5871. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5872. # While it may appear that require is being used as a pkg-config

  5873. # fallback for libmfx, it is actually being used to detect a different

  5874. # installation route altogether.  If libmfx is installed via the Intel

  5875. # Media SDK or Intel Media Server Studio, these don't come with

  5876. # pkg-config support.  Instead, users should make sure that the build

  5877. # can find the libraries and headers through other means.

  5878. enabled libmfx            && { use_pkg_config libmfx "mfx/mfxvideo.h" MFXInit ||

  5879.                                { require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }

  5880. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5881. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5882. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa

  5883. enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||

  5884.                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||

  5885.                                die "ERROR: libnpp not found"; }

  5886. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5887. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5888. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5889.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5890.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5891.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5892. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5893. enabled libopenjpeg       && { { check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5894.                                check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 ||

  5895.                                { check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5896.                                check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||

  5897.                                { check_lib libopenjpeg openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5898.                                { check_lib libopenjpeg openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5899.                                { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5900.                                die "ERROR: libopenjpeg not found"; }

  5901. enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create

  5902. enabled libopus           && {

  5903.     enabled libopus_decoder && {

  5904.         require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5905.     }

  5906.     enabled libopus_encoder && {

  5907.         require_pkg_config opus opus_multistream.h opus_multistream_surround_encoder_create

  5908.     }

  5909. }

  5910. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5911. enabled librsvg           && require_pkg_config librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5912. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5913. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5914. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5915. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5916.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5917. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy

  5918. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5919. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5920. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5921. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5922. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5923. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5924.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5925.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5926. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5927. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5928. enabled libvmaf           && require_pkg_config libvmaf libvmaf.h compute_vmaf

  5929. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5930. enabled libvorbis         && require_pkg_config vorbis vorbis/codec.h vorbis_info_init &&

  5931.                              require_pkg_config vorbisenc vorbis/vorbisenc.h vorbis_encode_init

  5932. 

  5933. enabled libvpx            && {

  5934.     enabled libvpx_vp8_decoder && {

  5935.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5936.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5937.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5938.     }

  5939.     enabled libvpx_vp8_encoder && {

  5940.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5941.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5942.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5943.     }

  5944.     enabled libvpx_vp9_decoder && {

  5945.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5946.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx

  5947.     }

  5948.     enabled libvpx_vp9_encoder && {

  5949.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5950.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx

  5951.     }

  5952.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5953.         die "libvpx enabled but no supported decoders found"

  5954.     fi

  5955. }

  5956. 

  5957. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5958. enabled libwebp           && {

  5959.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5960.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5961. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5962.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5963.                                  warn "using libx264 without pkg-config"; } } &&

  5964.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5965.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5966.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5967.                                enable libx262; }

  5968. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5969.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5970.                                die "ERROR: libx265 version must be >= 68."; }

  5971. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs

  5972. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5973. enabled libzimg           && require_pkg_config "zimg >= 2.3.0" zimg.h zimg_get_api_version

  5974. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5975. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5976.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5977.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5978. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5979. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5980.                                { ! enabled cross_compile &&

  5981.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5982.                                  add_ldflags -L/opt/vc/lib/ &&

  5983.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5984.                                die "ERROR: mmal not found" &&

  5985.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5986. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5987.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5988.                                die "ERROR: openal not found"; } &&

  5989.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5990.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5991. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5992.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5993.                                die "ERROR: opencl not found"; } &&

  5994.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5995.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5996.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5997. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  5998.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5999.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  6000.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  6001.                                die "ERROR: opengl not found."

  6002.                              }

  6003. enabled omx_rpi           && { check_header OMX_Core.h ||

  6004.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  6005.                                die "ERROR: OpenMAX IL headers not found"; }

  6006. enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }

  6007. enabled openssl           && { use_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||

  6008.                                use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  6009.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  6010.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  6011.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  6012.                                die "ERROR: openssl not found"; }

  6013. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  6014. 

  6015. if enabled gcrypt; then

  6016.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  6017.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  6018.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  6019.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  6020.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  6021.             die "ERROR: gcrypt not found"

  6022.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_extralibs

  6023.     else

  6024.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  6025.     fi

  6026. fi

  6027. 

  6028. if enabled sdl2; then

  6029.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6030.     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then

  6031.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6032.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6033.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||

  6034.             disable sdl2

  6035.     elif "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6036.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6037.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6038.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6039.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6040.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags ||

  6041.             disable sdl2

  6042.     else

  6043.         disable sdl2

  6044.     fi

  6045.     if test $target_os = "mingw32"; then

  6046.         sdl2_extralibs="$sdl2_extralibs -mconsole"

  6047.     fi

  6048. fi

  6049. enabled sdl2 && add_cflags $sdl2_cflags && add_extralibs $sdl2_extralibs

  6050. 

  6051. if enabled decklink; then

  6052.     case $target_os in

  6053.         mingw32*|mingw64*|win32|win64)

  6054.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6055.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6056.             ;;

  6057.     esac

  6058. fi

  6059. 

  6060. enabled securetransport &&

  6061.     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6062.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||

  6063.         disable securetransport

  6064. 

  6065. enabled schannel &&

  6066.     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6067.     check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&

  6068.     add_extralibs -lsecur32 ||

  6069.         disable schannel

  6070. 

  6071. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6072. enabled makeinfo \

  6073.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6074.     && enable makeinfo_html || disable makeinfo_html

  6075. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6076. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6077. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6078. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6079. 

  6080. check_header linux/fb.h

  6081. check_header linux/videodev2.h

  6082. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6083. 

  6084. check_header sys/videoio.h

  6085. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6086. 

  6087. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6088. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6089. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6090. # w32api 3.12 had it defined wrong

  6091. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6092. 

  6093. check_type "dshow.h" IBaseFilter

  6094. 

  6095. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6096. { check_header dev/bktr/ioctl_meteor.h &&

  6097.   check_header dev/bktr/ioctl_bt848.h; } ||

  6098. { check_header machine/ioctl_meteor.h &&

  6099.   check_header machine/ioctl_bt848.h; } ||

  6100. { check_header dev/video/meteor/ioctl_meteor.h &&

  6101.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  6102. check_header dev/ic/bt8xx.h

  6103. 

  6104. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6105.     enable_safe sys/soundcard.h

  6106. else

  6107.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  6108.     #include <sys/soundcard.h>

  6109.     audio_buf_info abc;

  6110. EOF

  6111. fi

  6112. check_header soundcard.h

  6113. 

  6114. enabled alsa && check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6115. 

  6116. enabled jack && check_lib jack jack/jack.h jack_client_open -ljack &&

  6117.     check_func jack_port_get_latency_range -ljack

  6118. 

  6119. enabled sndio && check_lib sndio sndio.h sio_open -lsndio

  6120. 

  6121. if enabled libcdio; then

  6122.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6123.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6124.     die "ERROR: No usable libcdio/cdparanoia found"

  6125. fi

  6126. 

  6127. enabled libxcb && check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || disable libxcb

  6128. 

  6129. if enabled libxcb; then

  6130. 

  6131.     enabled libxcb_shm    && check_pkg_config xcb-shm    xcb/shm.h    xcb_shm_attach              || disable libxcb_shm

  6132.     enabled libxcb_shape  && check_pkg_config xcb-shape  xcb/shape.h  xcb_shape_get_rectangles    || disable libxcb_shape

  6133.     enabled libxcb_xfixes && check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || disable libxcb_xfixes

  6134. 

  6135.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  6136.     add_extralibs $xcb_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs $xcb_shape_extralibs

  6137. fi

  6138. 

  6139. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6140. 

  6141. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6142. # the desktop api partition

  6143. check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"

  6144. #ifdef WINAPI_FAMILY

  6145. #include <winapifamily.h>

  6146. #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  6147. #error desktop, not uwp

  6148. #else

  6149. // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP

  6150. #endif

  6151. #else

  6152. #error no family set

  6153. #endif

  6154. EOF

  6155. 

  6156. enabled vaapi &&

  6157.     check_lib vaapi va/va.h vaInitialize -lva

  6158. 

  6159. enabled vaapi &&

  6160.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6161.     disable vaapi

  6162. 

  6163. enabled vaapi &&

  6164.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6165. 

  6166. enabled vaapi &&

  6167.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6168. 

  6169. enabled vdpau &&

  6170.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6171.     disable vdpau

  6172. 

  6173. enabled vdpau &&

  6174.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6175. 

  6176. enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  6177. 

  6178. if enabled x86; then

  6179.     case $target_os in

  6180.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6181.             ;;

  6182.         *)

  6183.             disable cuda cuvid nvenc

  6184.             ;;

  6185.     esac

  6186. else

  6187.     disable cuda cuvid nvenc

  6188. fi

  6189. 

  6190. enabled nvenc &&

  6191.     check_cc -I$source_path <<EOF || disable nvenc

  6192. #include "compat/nvenc/nvEncodeAPI.h"

  6193. NV_ENCODE_API_FUNCTION_LIST flist;

  6194. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6195. int main(void) { return 0; }

  6196. EOF

  6197. 

  6198. # Funny iconv installations are not unusual, so check it after all flags have been set

  6199. if enabled libc_iconv; then

  6200.     check_func_headers iconv.h iconv

  6201. elif enabled iconv; then

  6202.     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6203. fi

  6204. 

  6205. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6206. 

  6207. # add some useful compiler flags if supported

  6208. check_cflags -Wdeclaration-after-statement

  6209. check_cflags -Wall

  6210. check_cflags -Wdisabled-optimization

  6211. check_cflags -Wpointer-arith

  6212. check_cflags -Wredundant-decls

  6213. check_cflags -Wwrite-strings

  6214. check_cflags -Wtype-limits

  6215. check_cflags -Wundef

  6216. check_cflags -Wmissing-prototypes

  6217. check_cflags -Wno-pointer-to-int-cast

  6218. check_cflags -Wstrict-prototypes

  6219. check_cflags -Wempty-body

  6220. 

  6221. if enabled extra_warnings; then

  6222.     check_cflags -Wcast-qual

  6223.     check_cflags -Wextra

  6224.     check_cflags -Wpedantic

  6225. fi

  6226. 

  6227. check_disable_warning(){

  6228.     warning_flag=-W${1#-Wno-}

  6229.     test_cflags $warning_flag && add_cflags $1

  6230. }

  6231. 

  6232. check_disable_warning -Wno-parentheses

  6233. check_disable_warning -Wno-switch

  6234. check_disable_warning -Wno-format-zero-length

  6235. check_disable_warning -Wno-pointer-sign

  6236. check_disable_warning -Wno-unused-const-variable

  6237. 

  6238. check_disable_warning_headers(){

  6239.     warning_flag=-W${1#-Wno-}

  6240.     test_cflags $warning_flag && add_cflags_headers $1

  6241. }

  6242. 

  6243. check_disable_warning_headers -Wno-deprecated-declarations

  6244. check_disable_warning_headers -Wno-unused-variable

  6245. 

  6246. check_cc <<EOF && enable blocks_extension

  6247. void (^block)(void);

  6248. EOF

  6249. 

  6250. # add some linker flags

  6251. check_ldflags -Wl,--warn-common

  6252. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6253. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6254. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6255. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6256. 

  6257. # add some strip flags

  6258. check_stripflags -x

  6259. 

  6260. enabled neon_clobber_test &&

  6261.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6262.                   -Wl,--wrap,avcodec_decode_audio4      \

  6263.                   -Wl,--wrap,avcodec_decode_video2      \

  6264.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6265.                   -Wl,--wrap,avcodec_encode_audio2      \

  6266.                   -Wl,--wrap,avcodec_encode_video2      \

  6267.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6268.                   -Wl,--wrap,avcodec_send_packet        \

  6269.                   -Wl,--wrap,avcodec_receive_packet     \

  6270.                   -Wl,--wrap,avcodec_send_frame         \

  6271.                   -Wl,--wrap,avcodec_receive_frame      \

  6272.                   -Wl,--wrap,swr_convert                \

  6273.                   -Wl,--wrap,avresample_convert ||

  6274.     disable neon_clobber_test

  6275. 

  6276. enabled xmm_clobber_test &&

  6277.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6278.                   -Wl,--wrap,avcodec_decode_audio4      \

  6279.                   -Wl,--wrap,avcodec_decode_video2      \

  6280.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6281.                   -Wl,--wrap,avcodec_encode_audio2      \

  6282.                   -Wl,--wrap,avcodec_encode_video2      \

  6283.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6284.                   -Wl,--wrap,avcodec_send_packet        \

  6285.                   -Wl,--wrap,avcodec_receive_packet     \

  6286.                   -Wl,--wrap,avcodec_send_frame         \

  6287.                   -Wl,--wrap,avcodec_receive_frame      \

  6288.                   -Wl,--wrap,swr_convert                \

  6289.                   -Wl,--wrap,avresample_convert         \

  6290.                   -Wl,--wrap,sws_scale ||

  6291.     disable xmm_clobber_test

  6292. 

  6293. check_ld "cc" <<EOF && enable proper_dce

  6294. extern const int array[512];

  6295. static inline int func(void) { return array[0]; }

  6296. int main(void) { return 0; }

  6297. EOF

  6298. 

  6299. if enabled proper_dce; then

  6300.     echo "X { local: *; };" > $TMPV

  6301.     if test_ldflags -Wl,${version_script},$TMPV; then

  6302.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6303.         check_cc <<EOF && enable symver_asm_label

  6304. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6305. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6306. EOF

  6307.         check_cc <<EOF && enable symver_gnu_asm

  6308. __asm__(".symver ff_foo,av_foo@VERSION");

  6309. void ff_foo(void) {}

  6310. EOF

  6311.     fi

  6312. fi

  6313. 

  6314. if [ -z "$optflags" ]; then

  6315.     if enabled small; then

  6316.         optflags=$cflags_size

  6317.     elif enabled optimizations; then

  6318.         optflags=$cflags_speed

  6319.     else

  6320.         optflags=$cflags_noopt

  6321.     fi

  6322. fi

  6323. 

  6324. if [ -z "$nvccflags" ]; then

  6325.     nvccflags=$nvccflags_default

  6326. fi

  6327. 

  6328. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6329.     nvccflags="$nvccflags -m64"

  6330. else

  6331.     nvccflags="$nvccflags -m32"

  6332. fi

  6333. 

  6334. check_optflags(){

  6335.     check_cflags "$@"

  6336.     enabled lto && check_ldflags "$@"

  6337. }

  6338. 

  6339. check_optflags $optflags

  6340. check_optflags -fno-math-errno

  6341. check_optflags -fno-signed-zeros

  6342. 

  6343. if enabled lto; then

  6344.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6345.     check_cflags  -flto

  6346.     check_ldflags -flto $cpuflags

  6347.     disable inline_asm_direct_symbol_refs

  6348. fi

  6349. 

  6350. enabled ftrapv && check_cflags -ftrapv

  6351. 

  6352. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6353. int x;

  6354. EOF

  6355. 

  6356. 

  6357. if enabled icc; then

  6358.     # Just warnings, no remarks

  6359.     check_cflags -w1

  6360.     # -wd: Disable following warnings

  6361.     # 144, 167, 556: -Wno-pointer-sign

  6362.     # 188: enumerated type mixed with another type

  6363.     # 1292: attribute "foo" ignored

  6364.     # 1419: external declaration in primary source file

  6365.     # 10006: ignoring unknown option -fno-signed-zeros

  6366.     # 10148: ignoring unknown option -Wno-parentheses

  6367.     # 10156: ignoring option '-W'; no argument required

  6368.     # 13200: No EMMS instruction before call to function

  6369.     # 13203: No EMMS instruction before return from function

  6370.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6371.     # 11030: Warning unknown option --as-needed

  6372.     # 10156: ignoring option '-export'; no argument required

  6373.     check_ldflags -wd10156,11030

  6374.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6375.     enable ebp_available

  6376.     # The test above does not test linking

  6377.     enabled lto && disable symver_asm_label

  6378.     if enabled x86_32; then

  6379.         icc_version=$($cc -dumpversion)

  6380.         test ${icc_version%%.*} -ge 11 &&

  6381.             check_cflags -falign-stack=maintain-16-byte ||

  6382.             disable aligned_stack

  6383.     fi

  6384. elif enabled ccc; then

  6385.     # disable some annoying warnings

  6386.     add_cflags -msg_disable bitnotint

  6387.     add_cflags -msg_disable mixfuncvoid

  6388.     add_cflags -msg_disable nonstandcast

  6389.     add_cflags -msg_disable unsupieee

  6390. elif enabled gcc; then

  6391.     check_optflags -fno-tree-vectorize

  6392.     check_cflags -Werror=format-security

  6393.     check_cflags -Werror=implicit-function-declaration

  6394.     check_cflags -Werror=missing-prototypes

  6395.     check_cflags -Werror=return-type

  6396.     check_cflags -Werror=vla

  6397.     check_cflags -Wformat

  6398.     check_cflags -fdiagnostics-color=auto

  6399.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6400. elif enabled llvm_gcc; then

  6401.     check_cflags -mllvm -stack-alignment=16

  6402. elif enabled clang; then

  6403.     check_cflags -mllvm -stack-alignment=16

  6404.     check_cflags -mstack-alignment=16

  6405.     check_cflags -Qunused-arguments

  6406.     check_cflags -Werror=implicit-function-declaration

  6407.     check_cflags -Werror=missing-prototypes

  6408.     check_cflags -Werror=return-type

  6409. elif enabled cparser; then

  6410.     add_cflags -Wno-missing-variable-declarations

  6411.     add_cflags -Wno-empty-statement

  6412. elif enabled armcc; then

  6413.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6414.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6415.     # 2523: use of inline assembly is deprecated

  6416.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6417.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6418.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6419.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6420.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6421.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6422. elif enabled tms470; then

  6423.     add_cflags -pds=824 -pds=837

  6424.     disable inline_asm

  6425. elif enabled pathscale; then

  6426.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6427. elif enabled_any msvc icl; then

  6428.     enabled x86_32 && disable aligned_stack

  6429.     enabled_all x86_32 debug && add_cflags -Oy-

  6430.     enabled debug && add_ldflags -debug

  6431.     enable pragma_deprecated

  6432.     if enabled icl; then

  6433.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6434.         # (correctly) on icl 13.x.

  6435.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6436.             add_cflags -Qansi-alias

  6437.         # Some inline asm is not compilable in debug

  6438.         if enabled debug; then

  6439.             disable ebp_available

  6440.             disable ebx_available

  6441.         fi

  6442.     fi

  6443.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6444.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6445.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6446.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6447.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6448.     # MSVC 2013 and newer can handle it fine.

  6449.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6450.     # happens in config.h.

  6451.     if [ $_restrict != restrict ]; then

  6452.         check_cc <<EOF || add_cflags -FIstdlib.h

  6453. __declspec($_restrict) void* foo(int);

  6454. EOF

  6455.     fi

  6456.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6457.     # Issue has been fixed in MSVC v19.00.24218.

  6458.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6459.         check_cflags -d2SSAOptimizer-

  6460.     # enable utf-8 source processing on VS2015 U2 and newer

  6461.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6462.         add_cflags -utf-8

  6463. fi

  6464. 

  6465. for pfx in "" host_; do

  6466.     varname=${pfx%_}cc_type

  6467.     eval "type=\$$varname"

  6468.     if [ "$type" = "msvc" ]; then

  6469.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6470. static inline int foo(int a) { return a; }

  6471. EOF

  6472.     fi

  6473. done

  6474. 

  6475. case $as_type in

  6476.     clang)

  6477.         add_asflags -Qunused-arguments

  6478.     ;;

  6479. esac

  6480. 

  6481. case $ld_type in

  6482.     clang)

  6483.         check_ldflags -Qunused-arguments

  6484.     ;;

  6485. esac

  6486. 

  6487. case $target_os in

  6488.     osf1)

  6489.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6490.     ;;

  6491. esac

  6492. 

  6493. enable frame_thread_encoder

  6494. 

  6495. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6496. 

  6497. check_deps $CONFIG_LIST       \

  6498.            $CONFIG_EXTRA      \

  6499.            $HAVE_LIST         \

  6500.            $ALL_COMPONENTS    \

  6501. 

  6502. 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"

  6503. 

  6504. 

  6505. if test $target_os = "haiku"; then

  6506.     disable memalign

  6507.     disable posix_memalign

  6508. fi

  6509. 

  6510. # add_dep lib dep

  6511. # -> enable ${lib}_deps_${dep}

  6512. # -> add $dep to ${lib}_deps only once

  6513. add_dep() {

  6514.     lib=$1

  6515.     dep=$2

  6516.     enabled "${lib}_deps_${dep}" && return 0

  6517.     enable  "${lib}_deps_${dep}"

  6518.     prepend "${lib}_deps" $dep

  6519. }

  6520. 

  6521. # merge deps lib components

  6522. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6523. merge_deps() {

  6524.     lib=$1

  6525.     shift

  6526.     for comp in $*; do

  6527.         enabled $comp || continue

  6528.         eval "dep=\"\$${comp}_deps\""

  6529.         for d in $dep; do

  6530.             add_dep $lib $d

  6531.         done

  6532.     done

  6533. }

  6534. 

  6535. merge_deps libavfilter $FILTER_LIST

  6536. 

  6537. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6538. 

  6539. for thread in $THREADS_LIST; do

  6540.     if enabled $thread; then

  6541.         test -n "$thread_type" &&

  6542.             die "ERROR: Only one thread type must be selected." ||

  6543.             thread_type="$thread"

  6544.     fi

  6545. done

  6546. 

  6547. if disabled stdatomic_h; then

  6548.     if enabled atomics_gcc; then

  6549.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6550.     elif enabled atomics_win32; then

  6551.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6552.     elif enabled atomics_suncc; then

  6553.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6554.     elif enabled pthreads; then

  6555.         add_compat atomics/pthread/stdatomic.o

  6556.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6557.     else

  6558.         enabled threads && die "Threading is enabled, but no atomics are available"

  6559.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6560.     fi

  6561. fi

  6562. 

  6563. # Check if requested libraries were found.

  6564. for lib in $AUTODETECT_LIBS; do

  6565.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6566. done

  6567. 

  6568. enabled zlib && add_cppflags -DZLIB_CONST

  6569. 

  6570. # conditional library dependencies, in linking order

  6571. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6572. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6573. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6574. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6575. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6576. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6577. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6578. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6579. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6580. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6581. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6582. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6583. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6584. enabled pan_filter          && prepend avfilter_deps "swresample"

  6585. enabled pp_filter           && prepend avfilter_deps "postproc"

  6586. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6587. enabled resample_filter && prepend avfilter_deps "avresample"

  6588. enabled sab_filter          && prepend avfilter_deps "swscale"

  6589. enabled scale_filter    && prepend avfilter_deps "swscale"

  6590. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6591. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6592. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6593. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6594. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6595. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6596. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6597. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6598. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6599. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6600. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6601. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6602. 

  6603. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6604. 

  6605. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6606. 

  6607. expand_deps(){

  6608.     lib_deps=${1}_deps

  6609.     eval "deps=\$$lib_deps"

  6610.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6611.     unique $lib_deps

  6612. }

  6613. 

  6614. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6615. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6616. 

  6617. map 'expand_deps $v' $LIBRARY_LIST

  6618. 

  6619. license="LGPL version 2.1 or later"

  6620. if enabled nonfree; then

  6621.     license="nonfree and unredistributable"

  6622. elif enabled gplv3; then

  6623.     license="GPL version 3 or later"

  6624. elif enabled lgplv3; then

  6625.     license="LGPL version 3 or later"

  6626. elif enabled gpl; then

  6627.     license="GPL version 2 or later"

  6628. fi

  6629. 

  6630. if test "$quiet" != "yes"; then

  6631. 

  6632. echo "install prefix            $prefix"

  6633. echo "source path               $source_path"

  6634. echo "C compiler                $cc"

  6635. echo "C library                 $libc_type"

  6636. if test "$host_cc" != "$cc"; then

  6637.     echo "host C compiler           $host_cc"

  6638.     echo "host C library            $host_libc_type"

  6639. fi

  6640. echo "ARCH                      $arch ($cpu)"

  6641. if test "$build_suffix" != ""; then

  6642.     echo "build suffix              $build_suffix"

  6643. fi

  6644. if test "$progs_suffix" != ""; then

  6645.     echo "progs suffix              $progs_suffix"

  6646. fi

  6647. if test "$extra_version" != ""; then

  6648.     echo "version string suffix     $extra_version"

  6649. fi

  6650. echo "big-endian                ${bigendian-no}"

  6651. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6652. if enabled x86; then

  6653.     echo "standalone assembly       ${x86asm-no}"

  6654.     echo "x86 assembler             ${x86asmexe}"

  6655.     echo "MMX enabled               ${mmx-no}"

  6656.     echo "MMXEXT enabled            ${mmxext-no}"

  6657.     echo "3DNow! enabled            ${amd3dnow-no}"

  6658.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6659.     echo "SSE enabled               ${sse-no}"

  6660.     echo "SSSE3 enabled             ${ssse3-no}"

  6661.     echo "AESNI enabled             ${aesni-no}"

  6662.     echo "AVX enabled               ${avx-no}"

  6663.     echo "AVX2 enabled              ${avx2-no}"

  6664.     echo "XOP enabled               ${xop-no}"

  6665.     echo "FMA3 enabled              ${fma3-no}"

  6666.     echo "FMA4 enabled              ${fma4-no}"

  6667.     echo "i686 features enabled     ${i686-no}"

  6668.     echo "CMOV is fast              ${fast_cmov-no}"

  6669.     echo "EBX available             ${ebx_available-no}"

  6670.     echo "EBP available             ${ebp_available-no}"

  6671. fi

  6672. if enabled aarch64; then

  6673.     echo "NEON enabled              ${neon-no}"

  6674.     echo "VFP enabled               ${vfp-no}"

  6675. fi

  6676. if enabled arm; then

  6677.     echo "ARMv5TE enabled           ${armv5te-no}"

  6678.     echo "ARMv6 enabled             ${armv6-no}"

  6679.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6680.     echo "VFP enabled               ${vfp-no}"

  6681.     echo "NEON enabled              ${neon-no}"

  6682.     echo "THUMB enabled             ${thumb-no}"

  6683. fi

  6684. if enabled mips; then

  6685.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6686.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6687.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6688.     echo "MIPS MSA enabled          ${msa-no}"

  6689.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6690. fi

  6691. if enabled ppc; then

  6692.     echo "AltiVec enabled           ${altivec-no}"

  6693.     echo "VSX enabled               ${vsx-no}"

  6694.     echo "POWER8 enabled            ${power8-no}"

  6695.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6696.     echo "dcbzl available           ${dcbzl-no}"

  6697. fi

  6698. echo "debug symbols             ${debug-no}"

  6699. echo "strip symbols             ${stripping-no}"

  6700. echo "optimize for size         ${small-no}"

  6701. echo "optimizations             ${optimizations-no}"

  6702. echo "static                    ${static-no}"

  6703. echo "shared                    ${shared-no}"

  6704. echo "postprocessing support    ${postproc-no}"

  6705. echo "network support           ${network-no}"

  6706. echo "threading support         ${thread_type-no}"

  6707. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6708. echo "texi2html enabled         ${texi2html-no}"

  6709. echo "perl enabled              ${perl-no}"

  6710. echo "pod2man enabled           ${pod2man-no}"

  6711. echo "makeinfo enabled          ${makeinfo-no}"

  6712. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6713. test -n "$random_seed" &&

  6714.     echo "random seed               ${random_seed}"

  6715. echo

  6716. 

  6717. echo "External libraries:"

  6718. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6719. echo

  6720. 

  6721. echo "External libraries providing hardware acceleration:"

  6722. print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns

  6723. echo

  6724. 

  6725. echo "Libraries:"

  6726. print_enabled '' $LIBRARY_LIST | print_in_columns

  6727. echo

  6728. 

  6729. echo "Programs:"

  6730. print_enabled '' $PROGRAM_LIST | print_in_columns

  6731. echo

  6732. 

  6733. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6734.     echo "Enabled ${type}s:"

  6735.     eval list=\$$(toupper $type)_LIST

  6736.     print_enabled '_*' $list | print_in_columns

  6737.     echo

  6738. done

  6739. 

  6740. if test -n "$ignore_tests"; then

  6741.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6742.     echo "Ignored FATE tests:"

  6743.     echo $ignore_tests | print_in_columns

  6744.     echo

  6745. fi

  6746. 

  6747. echo "License: $license"

  6748. 

  6749. echo "Creating configuration files ..."

  6750. 

  6751. fi # test "$quiet" != "yes"

  6752. 

  6753. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6754. 

  6755. enabled stripping || strip="echo skipping strip"

  6756. 

  6757. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6758. 

  6759. cat > ffbuild/config.mak <<EOF

  6760. # Automatically generated by configure - do not modify!

  6761. ifndef FFMPEG_CONFIG_MAK

  6762. FFMPEG_CONFIG_MAK=1

  6763. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6764. prefix=$prefix

  6765. LIBDIR=\$(DESTDIR)$libdir

  6766. SHLIBDIR=\$(DESTDIR)$shlibdir

  6767. INCDIR=\$(DESTDIR)$incdir

  6768. BINDIR=\$(DESTDIR)$bindir

  6769. DATADIR=\$(DESTDIR)$datadir

  6770. DOCDIR=\$(DESTDIR)$docdir

  6771. MANDIR=\$(DESTDIR)$mandir

  6772. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6773. INSTALL_NAME_DIR=$install_name_dir

  6774. SRC_PATH=$source_path

  6775. SRC_LINK=$source_link

  6776. ifndef MAIN_MAKEFILE

  6777. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6778. endif

  6779. CC_IDENT=$cc_ident

  6780. ARCH=$arch

  6781. INTRINSICS=$intrinsics

  6782. CC=$cc

  6783. CXX=$cxx

  6784. AS=$as

  6785. OBJCC=$objcc

  6786. LD=$ld

  6787. DEPCC=$dep_cc

  6788. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6789. DEPAS=$as

  6790. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6791. X86ASM=$x86asmexe

  6792. DEPX86ASM=$x86asmexe

  6793. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6794. AR=$ar

  6795. ARFLAGS=$arflags

  6796. AR_O=$ar_o

  6797. RANLIB=$ranlib

  6798. STRIP=$strip

  6799. NVCC=$nvcc

  6800. CP=cp -p

  6801. LN_S=$ln_s

  6802. CPPFLAGS=$CPPFLAGS

  6803. CFLAGS=$CFLAGS

  6804. CXXFLAGS=$CXXFLAGS

  6805. OBJCFLAGS=$OBJCFLAGS

  6806. ASFLAGS=$ASFLAGS

  6807. NVCCFLAGS=$nvccflags

  6808. AS_C=$AS_C

  6809. AS_O=$AS_O

  6810. OBJCC_C=$OBJCC_C

  6811. OBJCC_E=$OBJCC_E

  6812. OBJCC_O=$OBJCC_O

  6813. CC_C=$CC_C

  6814. CC_E=$CC_E

  6815. CC_O=$CC_O

  6816. CXX_C=$CXX_C

  6817. CXX_O=$CXX_O

  6818. NVCC_C=$NVCC_C

  6819. NVCC_O=$NVCC_O

  6820. LD_O=$LD_O

  6821. X86ASM_O=$X86ASM_O

  6822. LD_LIB=$LD_LIB

  6823. LD_PATH=$LD_PATH

  6824. DLLTOOL=$dlltool

  6825. WINDRES=$windres

  6826. DEPWINDRES=$dep_cc

  6827. DOXYGEN=$doxygen

  6828. LDFLAGS=$LDFLAGS

  6829. LDEXEFLAGS=$LDEXEFLAGS

  6830. LDLIBFLAGS=$LDLIBFLAGS

  6831. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6832. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6833. X86ASMFLAGS=$X86ASMFLAGS

  6834. BUILDSUF=$build_suffix

  6835. PROGSSUF=$progs_suffix

  6836. FULLNAME=$FULLNAME

  6837. LIBPREF=$LIBPREF

  6838. LIBSUF=$LIBSUF

  6839. LIBNAME=$LIBNAME

  6840. SLIBPREF=$SLIBPREF

  6841. SLIBSUF=$SLIBSUF

  6842. EXESUF=$EXESUF

  6843. EXTRA_VERSION=$extra_version

  6844. CCDEP=$CCDEP

  6845. CXXDEP=$CXXDEP

  6846. CCDEP_FLAGS=$CCDEP_FLAGS

  6847. ASDEP=$ASDEP

  6848. ASDEP_FLAGS=$ASDEP_FLAGS

  6849. X86ASMDEP=$X86ASMDEP

  6850. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6851. CC_DEPFLAGS=$CC_DEPFLAGS

  6852. AS_DEPFLAGS=$AS_DEPFLAGS

  6853. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6854. HOSTCC=$host_cc

  6855. HOSTLD=$host_ld

  6856. HOSTCFLAGS=$host_cflags

  6857. HOSTCPPFLAGS=$host_cppflags

  6858. HOSTEXESUF=$HOSTEXESUF

  6859. HOSTLDFLAGS=$host_ldflags

  6860. HOSTEXTRALIBS=$host_extralibs

  6861. DEPHOSTCC=$host_cc

  6862. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6863. HOSTCCDEP=$HOSTCCDEP

  6864. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6865. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6866. HOSTCC_C=$HOSTCC_C

  6867. HOSTCC_O=$HOSTCC_O

  6868. HOSTLD_O=$HOSTLD_O

  6869. TARGET_EXEC=$target_exec $target_exec_args

  6870. TARGET_PATH=$target_path

  6871. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6872. CFLAGS-ffplay=${sdl2_cflags}

  6873. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6874. ZLIB=$($ldflags_filter -lz)

  6875. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6876. EXTRALIBS=$extralibs

  6877. COMPAT_OBJS=$compat_objs

  6878. INSTALL=$install

  6879. LIBTARGET=${LIBTARGET}

  6880. SLIBNAME=${SLIBNAME}

  6881. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6882. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6883. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6884. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6885. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6886. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6887. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6888. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6889. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6890. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6891. NOREDZONE_FLAGS=$noredzone_flags

  6892. LIBFUZZER_PATH=$libfuzzer_path

  6893. IGNORE_TESTS=$ignore_tests

  6894. EOF

  6895. 

  6896. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6897. 

  6898. print_program_extralibs(){

  6899.     eval "program_extralibs=\$${1}_extralibs"

  6900.     eval echo "EXTRALIBS-${1}=${program_extralibs}" >> ffbuild/config.mak

  6901. }

  6902. 

  6903. map 'print_program_extralibs $v' $PROGRAM_LIST

  6904. 

  6905. cat > $TMPH <<EOF

  6906. /* Automatically generated by configure - do not modify! */

  6907. #ifndef FFMPEG_CONFIG_H

  6908. #define FFMPEG_CONFIG_H

  6909. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6910. #define FFMPEG_LICENSE "$(c_escape $license)"

  6911. #define CONFIG_THIS_YEAR 2017

  6912. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6913. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6914. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6915. #define av_restrict $_restrict

  6916. #define EXTERN_PREFIX "${extern_prefix}"

  6917. #define EXTERN_ASM ${extern_prefix}

  6918. #define BUILDSUF "$build_suffix"

  6919. #define SLIBSUF "$SLIBSUF"

  6920. #define HAVE_MMX2 HAVE_MMXEXT

  6921. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6922. EOF

  6923. 

  6924. test -n "$assert_level" &&

  6925.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6926. 

  6927. test -n "$malloc_prefix" &&

  6928.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6929. 

  6930. if enabled x86asm; then

  6931.     append config_files $TMPASM

  6932.     printf '' >$TMPASM

  6933. fi

  6934. 

  6935. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6936. 

  6937. 

  6938. mkdir -p doc

  6939. mkdir -p tests

  6940. mkdir -p tests/api

  6941. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6942. 

  6943. print_config ARCH_   "$config_files" $ARCH_LIST

  6944. print_config HAVE_   "$config_files" $HAVE_LIST

  6945. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6946.                                      $CONFIG_EXTRA      \

  6947.                                      $ALL_COMPONENTS    \

  6948. 

  6949. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6950. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6951. 

  6952. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6953. cp_if_changed $TMPH config.h

  6954. touch ffbuild/.config

  6955. 

  6956. enabled x86asm && cp_if_changed $TMPASM config.asm

  6957. 

  6958. cat > $TMPH <<EOF

  6959. /* Generated by ffconf */

  6960. #ifndef AVUTIL_AVCONFIG_H

  6961. #define AVUTIL_AVCONFIG_H

  6962. EOF

  6963. 

  6964. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6965. 

  6966. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6967. 

  6968. cp_if_changed $TMPH libavutil/avconfig.h

  6969. 

  6970. # generate the lists of enabled components

  6971. print_enabled_components(){

  6972.     file=$1

  6973.     struct_name=$2

  6974.     name=$3

  6975.     shift 3

  6976.     echo "static const $struct_name *$name[] = {" > $TMPH

  6977.     for c in $*; do

  6978.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  6979.     done

  6980.     echo "    NULL };" >> $TMPH

  6981.     cp_if_changed $TMPH $file

  6982. }

  6983. 

  6984. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  6985. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  6986. 

  6987. if test -n "$WARNINGS"; then

  6988.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6989.     enabled fatal_warnings && exit 1

  6990. fi

  6991. 

  6992. # Settings for pkg-config files

  6993. 

  6994. cat > ffbuild/config.sh <<EOF

  6995. # Automatically generated by configure - do not modify!

  6996. shared=$shared

  6997. build_suffix=$build_suffix

  6998. prefix=$prefix

  6999. libdir=$libdir

  7000. incdir=$incdir

  7001. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  7002. source_path=${source_path}

  7003. LIBPREF=${LIBPREF}

  7004. LIBSUF=${LIBSUF}

  7005. 

  7006. extralibs_avutil="$LIBRT $LIBM"

  7007. extralibs_avcodec="$extralibs"

  7008. extralibs_avformat="$extralibs"

  7009. extralibs_avdevice="$extralibs"

  7010. extralibs_avfilter="$extralibs"

  7011. extralibs_avresample="$LIBM"

  7012. extralibs_postproc=""

  7013. extralibs_swscale="$LIBM"

  7014. extralibs_swresample="$LIBM $LIBSOXR"

  7015. EOF

  7016. 

  7017. for lib in $LIBRARY_LIST; do

  7018.     lib_deps="$(eval echo \$${lib}_deps)"

  7019.     echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh

  7020. done