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FFmpeg
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FFmpeg/configure

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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.   --list-decoders          show all available decoders

  67.   --list-encoders          show all available encoders

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

  69.   --list-demuxers          show all available demuxers

  70.   --list-muxers            show all available muxers

  71.   --list-parsers           show all available parsers

  72.   --list-protocols         show all available protocols

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

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

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

  76.   --list-filters           show all available filters

  77. 

  78. Standard options:

  79.   --logfile=FILE           log tests and output to FILE [config.log]

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

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

  82.   --prefix=PREFIX          install in PREFIX [$prefix]

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

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

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

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

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

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

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

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

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

  92.                            not part of the dynamic linker search path

  93.                            use rpath when linking programs [USE WITH CARE]

  94. 

  95. Licensing options:

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

  97.                            and binaries will be under GPL [no]

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

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

  100.                            and binaries will be unredistributable [no]

  101. 

  102. Configuration options:

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

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

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

  106.   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)

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

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

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

  110.   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]

  111.   --enable-raise-major     increase major version numbers in sonames [no]

  112. 

  113. Program options:

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

  115.   --disable-ffmpeg         disable ffmpeg build

  116.   --disable-ffplay         disable ffplay build

  117.   --disable-ffprobe        disable ffprobe build

  118.   --disable-ffserver       disable ffserver build

  119. 

  120. Documentation options:

  121.   --disable-doc            do not build documentation

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

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

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

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

  126. 

  127. Component options:

  128.   --disable-avdevice       disable libavdevice build

  129.   --disable-avcodec        disable libavcodec build

  130.   --disable-avformat       disable libavformat build

  131.   --disable-swresample     disable libswresample build

  132.   --disable-swscale        disable libswscale build

  133.   --disable-postproc       disable libpostproc build

  134.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  140.   --disable-dct            disable DCT code

  141.   --disable-dwt            disable DWT code

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

  143.   --disable-lsp            disable LSP code

  144.   --disable-lzo            disable LZO decoder code

  145.   --disable-mdct           disable MDCT code

  146.   --disable-rdft           disable RDFT code

  147.   --disable-fft            disable FFT code

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

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

  150. 

  151. Hardware accelerators:

  152.   --disable-d3d11va        disable D3D11VA code [autodetect]

  153.   --disable-dxva2          disable DXVA2 code [autodetect]

  154.   --disable-vaapi          disable VAAPI code [autodetect]

  155.   --disable-vda            disable VDA code [autodetect]

  156.   --disable-vdpau          disable VDPAU code [autodetect]

  157.   --enable-videotoolbox    enable VideoToolbox code [autodetect]

  158. 

  159. Individual component options:

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

  161.   --disable-encoder=NAME   disable encoder NAME

  162.   --enable-encoder=NAME    enable encoder NAME

  163.   --disable-encoders       disable all encoders

  164.   --disable-decoder=NAME   disable decoder NAME

  165.   --enable-decoder=NAME    enable decoder NAME

  166.   --disable-decoders       disable all decoders

  167.   --disable-hwaccel=NAME   disable hwaccel NAME

  168.   --enable-hwaccel=NAME    enable hwaccel NAME

  169.   --disable-hwaccels       disable all hwaccels

  170.   --disable-muxer=NAME     disable muxer NAME

  171.   --enable-muxer=NAME      enable muxer NAME

  172.   --disable-muxers         disable all muxers

  173.   --disable-demuxer=NAME   disable demuxer NAME

  174.   --enable-demuxer=NAME    enable demuxer NAME

  175.   --disable-demuxers       disable all demuxers

  176.   --enable-parser=NAME     enable parser NAME

  177.   --disable-parser=NAME    disable parser NAME

  178.   --disable-parsers        disable all parsers

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

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

  181.   --disable-bsfs           disable all bitstream filters

  182.   --enable-protocol=NAME   enable protocol NAME

  183.   --disable-protocol=NAME  disable protocol NAME

  184.   --disable-protocols      disable all protocols

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

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

  187.   --disable-indevs         disable input devices

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

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

  190.   --disable-outdevs        disable output devices

  191.   --disable-devices        disable all devices

  192.   --enable-filter=NAME     enable filter NAME

  193.   --disable-filter=NAME    disable filter NAME

  194.   --disable-filters        disable all filters

  195. 

  196. External library support:

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

  198.   --disable-bzlib          disable bzlib [autodetect]

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

  200.   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]

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

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

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

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

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

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

  207.                            if openssl is not used [no]

  208.   --disable-iconv          disable iconv [autodetect]

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

  210.   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]

  211.   --enable-libass          enable libass subtitles rendering,

  212.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  219.                            and libraw1394 [no]

  220.   --enable-libdcadec       enable DCA decoding via libdcadec [no]

  221.   --enable-libfaac         enable AAC encoding via libfaac [no]

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

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

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

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

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

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

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

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

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

  231.   --enable-libmfx          enable HW acceleration through libmfx

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

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

  234.   --enable-libnut          enable NUT (de)muxing via libnut,

  235.                            native (de)muxer exists [no]

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

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

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

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

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

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

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

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

  244.   --enable-libquvi         enable quvi input via libquvi [no]

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

  246.   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]

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

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

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

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

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

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

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

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

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

  256.   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]

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

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

  259.   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]

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

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

  262.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  280.   --enable-mmal            enable decoding via MMAL [no]

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

  282.   --enable-nvenc           enable NVIDIA NVENC support [no]

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

  284.   --enable-opencl          enable OpenCL code

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

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

  287.                            if gnutls is not used [no]

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

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

  290.   --disable-sdl            disable sdl [autodetect]

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

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

  293.   --enable-x11grab         enable X11 grabbing (legacy) [no]

  294.   --disable-xlib           disable xlib [autodetect]

  295.   --disable-zlib           disable zlib [autodetect]

  296. 

  297. Toolchain options:

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

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

  300.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  347. 

  348. Advanced options (experts only):

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

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

  351.   --disable-symver         disable symbol versioning

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

  353.   --disable-safe-bitstream-reader

  354.                            disable buffer boundary checking in bitreaders

  355.                            (faster, but may crash)

  356.   --enable-memalign-hack   emulate memalign, interferes with memory debuggers

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

  358. 

  359. Optimization options (experts only):

  360.   --disable-asm            disable all assembly optimizations

  361.   --disable-altivec        disable AltiVec optimizations

  362.   --disable-vsx            disable VSX optimizations

  363.   --disable-power8         disable POWER8 optimizations

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

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

  366.   --disable-mmx            disable MMX optimizations

  367.   --disable-mmxext         disable MMXEXT optimizations

  368.   --disable-sse            disable SSE optimizations

  369.   --disable-sse2           disable SSE2 optimizations

  370.   --disable-sse3           disable SSE3 optimizations

  371.   --disable-ssse3          disable SSSE3 optimizations

  372.   --disable-sse4           disable SSE4 optimizations

  373.   --disable-sse42          disable SSE4.2 optimizations

  374.   --disable-avx            disable AVX optimizations

  375.   --disable-xop            disable XOP optimizations

  376.   --disable-fma3           disable FMA3 optimizations

  377.   --disable-fma4           disable FMA4 optimizations

  378.   --disable-avx2           disable AVX2 optimizations

  379.   --disable-aesni          disable AESNI optimizations

  380.   --disable-armv5te        disable armv5te optimizations

  381.   --disable-armv6          disable armv6 optimizations

  382.   --disable-armv6t2        disable armv6t2 optimizations

  383.   --disable-vfp            disable VFP optimizations

  384.   --disable-neon           disable NEON optimizations

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

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

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

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

  389.   --disable-msa            disable MSA optimizations

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

  391.   --disable-mmi            disable Loongson SIMD optimizations

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

  393. 

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

  395.   --disable-debug          disable debugging symbols

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

  397.   --disable-optimizations  disable compiler optimizations

  398.   --enable-extra-warnings  enable more compiler warnings

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

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

  401.                            2 causes a slowdown at runtime.

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

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

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

  405.                            Cannot be combined with --target-exec

  406.   --enable-ftrapv          Trap arithmetic overflows

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

  408.                            \$FATE_SAMPLES at make invocation time.

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

  410.                            used only for debugging purposes)

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

  412.                            should be used only for debugging purposes)

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

  414.   --disable-random

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

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

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

  418.                            (group) and PROB the probability associated with

  419.                            NAME (default 0.5).

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

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

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

  423. 

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

  425. EOF

  426.   exit 0

  427. }

  428. 

  429. quotes='""'

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

  431.     ncolors=$(tput colors)

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

  433.         bold_color=$(tput bold)

  434.         warn_color=$(tput setaf 3)

  435.         error_color=$(tput setaf 1)

  436.         reset_color=$(tput sgr0)

  437.     fi

  438.     # 72 used instead of 80 since that's the default of pr

  439.     ncols=$(tput cols)

  440. fi

  441. : ${ncols:=72}

  442. 

  443. log(){

  444.     echo "$@" >> $logfile

  445. }

  446. 

  447. log_file(){

  448.     log BEGIN $1

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

  450.     log END $1

  451. }

  452. 

  453. warn(){

  454.     log "WARNING: $*"

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

  456. }

  457. 

  458. die(){

  459.     log "$@"

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

  461.     cat <<EOF

  462. 

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

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

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

  466. EOF

  467.     if disabled logging; then

  468.         cat <<EOF

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

  470. include the log this produces with your report.

  471. EOF

  472.     else

  473.         cat <<EOF

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

  475. solve the problem.

  476. EOF

  477.     fi

  478.     exit 1

  479. }

  480. 

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

  482. toupper(){

  483.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  484. }

  485. 

  486. tolower(){

  487.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  488. }

  489. 

  490. c_escape(){

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

  492. }

  493. 

  494. sh_quote(){

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

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

  497.     echo "$v"

  498. }

  499. 

  500. cleanws(){

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

  502. }

  503. 

  504. filter(){

  505.     pat=$1

  506.     shift

  507.     for v; do

  508.         eval "case $v in $pat) echo $v ;; esac"

  509.     done

  510. }

  511. 

  512. filter_out(){

  513.     pat=$1

  514.     shift

  515.     for v; do

  516.         eval "case $v in $pat) ;; *) echo $v ;; esac"

  517.     done

  518. }

  519. 

  520. map(){

  521.     m=$1

  522.     shift

  523.     for v; do eval $m; done

  524. }

  525. 

  526. add_suffix(){

  527.     suffix=$1

  528.     shift

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

  530. }

  531. 

  532. set_all(){

  533.     value=$1

  534.     shift

  535.     for var in $*; do

  536.         eval $var=$value

  537.     done

  538. }

  539. 

  540. set_weak(){

  541.     value=$1

  542.     shift

  543.     for var; do

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

  545.     done

  546. }

  547. 

  548. sanitize_var_name(){

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

  550. }

  551. 

  552. set_safe(){

  553.     var=$1

  554.     shift

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

  556. }

  557. 

  558. get_safe(){

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

  560. }

  561. 

  562. pushvar(){

  563.     for pvar in $*; do

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

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

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

  567.     done

  568. }

  569. 

  570. popvar(){

  571.     for pvar in $*; do

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

  573.         test $level = 0 && continue

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

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

  576.         eval ${pvar}_level=$level

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

  578.     done

  579. }

  580. 

  581. enable(){

  582.     set_all yes $*

  583. }

  584. 

  585. disable(){

  586.     set_all no $*

  587. }

  588. 

  589. enable_weak(){

  590.     set_weak yes $*

  591. }

  592. 

  593. disable_weak(){

  594.     set_weak no $*

  595. }

  596. 

  597. enable_safe(){

  598.     for var; do

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

  600.     done

  601. }

  602. 

  603. disable_safe(){

  604.     for var; do

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

  606.     done

  607. }

  608. 

  609. do_enable_deep(){

  610.     for var; do

  611.         enabled $var && continue

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

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

  614.         pushvar var sgs

  615.         enable_deep $sel

  616.         popvar sgs

  617.         enable_deep_weak $sgs

  618.         popvar var

  619.     done

  620. }

  621. 

  622. enable_deep(){

  623.     do_enable_deep $*

  624.     enable $*

  625. }

  626. 

  627. enable_deep_weak(){

  628.     for var; do

  629.         disabled $var && continue

  630.         pushvar var

  631.         do_enable_deep $var

  632.         popvar var

  633.         enable_weak $var

  634.     done

  635. }

  636. 

  637. enabled(){

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

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

  640. }

  641. 

  642. disabled(){

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

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

  645. }

  646. 

  647. enabled_all(){

  648.     for opt; do

  649.         enabled $opt || return 1

  650.     done

  651. }

  652. 

  653. disabled_all(){

  654.     for opt; do

  655.         disabled $opt || return 1

  656.     done

  657. }

  658. 

  659. enabled_any(){

  660.     for opt; do

  661.         enabled $opt && return 0

  662.     done

  663. }

  664. 

  665. disabled_any(){

  666.     for opt; do

  667.         disabled $opt && return 0

  668.     done

  669.     return 1

  670. }

  671. 

  672. set_default(){

  673.     for opt; do

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

  675.     done

  676. }

  677. 

  678. is_in(){

  679.     value=$1

  680.     shift

  681.     for var in $*; do

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

  683.     done

  684.     return 1

  685. }

  686. 

  687. do_check_deps(){

  688.     for cfg; do

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

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

  691.         disabled ${cfg}_checking && continue

  692.         enable ${cfg}_checking

  693.         append allopts $cfg

  694. 

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

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

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

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

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

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

  701. 

  702.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  704.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  705. 

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

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

  708.         enabled_all  $dep_all || disable $cfg

  709.         enabled_any  $dep_any || disable $cfg

  710.         disabled_any $dep_sel && disable $cfg

  711. 

  712.         if enabled $cfg; then

  713.             enable_deep $dep_sel

  714.             enable_deep_weak $dep_sgs

  715.         fi

  716. 

  717.         disable ${cfg}_checking

  718.     done

  719. }

  720. 

  721. check_deps(){

  722.     unset allopts

  723. 

  724.     do_check_deps "$@"

  725. 

  726.     for cfg in $allopts; do

  727.         enabled $cfg || continue

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

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

  730.     done

  731. }

  732. 

  733. print_config(){

  734.     pfx=$1

  735.     files=$2

  736.     shift 2

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

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

  739.         {

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

  741.             v = \$2;

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

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

  744.             for (f in files) {

  745.                 file = files[f];

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

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

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

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

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

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

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

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

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

  755.                     yesno = \$2;

  756.                     c2 = tolower(c);

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

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

  759.                 }

  760.             }

  761.         }"

  762. }

  763. 

  764. print_enabled(){

  765.     suf=$1

  766.     shift

  767.     for v; do

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

  769.     done

  770. }

  771. 

  772. append(){

  773.     var=$1

  774.     shift

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

  776. }

  777. 

  778. prepend(){

  779.     var=$1

  780.     shift

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

  782. }

  783. 

  784. unique(){

  785.     var=$1

  786.     uniq_list=""

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

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

  789.     done

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

  791. }

  792. 

  793. add_cppflags(){

  794.     append CPPFLAGS "$@"

  795. }

  796. 

  797. add_cflags(){

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

  799. }

  800. 

  801. add_cxxflags(){

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

  803. }

  804. 

  805. add_asflags(){

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

  807. }

  808. 

  809. add_objcflags(){

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

  811. }

  812. 

  813. add_ldflags(){

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

  815. }

  816. 

  817. add_ldexeflags(){

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

  819. }

  820. 

  821. add_ldlibflags(){

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

  823. }

  824. 

  825. add_stripflags(){

  826.     append ASMSTRIPFLAGS "$@"

  827. }

  828. 

  829. add_extralibs(){

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

  831. }

  832. 

  833. add_host_cppflags(){

  834.     append host_cppflags "$@"

  835. }

  836. 

  837. add_host_cflags(){

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

  839. }

  840. 

  841. add_host_ldflags(){

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

  843. }

  844. 

  845. add_compat(){

  846.     append compat_objs $1

  847.     shift

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

  849. }

  850. 

  851. check_cmd(){

  852.     log "$@"

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

  854. }

  855. 

  856. check_stat(){

  857.     log check_stat "$@"

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

  859. }

  860. 

  861. cc_o(){

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

  863. }

  864. 

  865. cc_e(){

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

  867. }

  868. 

  869. check_cc(){

  870.     log check_cc "$@"

  871.     cat > $TMPC

  872.     log_file $TMPC

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

  874. }

  875. 

  876. check_cxx(){

  877.     log check_cxx "$@"

  878.     cat > $TMPCPP

  879.     log_file $TMPCPP

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

  881. }

  882. 

  883. check_objcc(){

  884.     log check_objcc "$@"

  885.     cat > $TMPM

  886.     log_file $TMPM

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

  888. }

  889. 

  890. check_cpp(){

  891.     log check_cpp "$@"

  892.     cat > $TMPC

  893.     log_file $TMPC

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

  895. }

  896. 

  897. as_o(){

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

  899. }

  900. 

  901. check_as(){

  902.     log check_as "$@"

  903.     cat > $TMPS

  904.     log_file $TMPS

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

  906. }

  907. 

  908. check_inline_asm(){

  909.     log check_inline_asm "$@"

  910.     name="$1"

  911.     code="$2"

  912.     shift 2

  913.     disable $name

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

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

  916. EOF

  917. }

  918. 

  919. check_insn(){

  920.     log check_insn "$@"

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

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

  923. }

  924. 

  925. check_yasm(){

  926.     log check_yasm "$@"

  927.     echo "$1" > $TMPS

  928.     log_file $TMPS

  929.     shift 1

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

  931. }

  932. 

  933. ld_o(){

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

  935. }

  936. 

  937. check_ld(){

  938.     log check_ld "$@"

  939.     type=$1

  940.     shift 1

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

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

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

  944.     flags=$($ldflags_filter $flags)

  945.     libs=$($ldflags_filter $libs)

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

  947. }

  948. 

  949. print_include(){

  950.     hdr=$1

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

  952.         echo "#include $hdr"    ||

  953.         echo "#include <$hdr>"

  954. }

  955. 

  956. check_code(){

  957.     log check_code "$@"

  958.     check=$1

  959.     headers=$2

  960.     code=$3

  961.     shift 3

  962.     {

  963.         for hdr in $headers; do

  964.             print_include $hdr

  965.         done

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

  967.     } | check_$check "$@"

  968. }

  969. 

  970. check_cppflags(){

  971.     log check_cppflags "$@"

  972.     check_cc "$@" <<EOF && append CPPFLAGS "$@"

  973. int x;

  974. EOF

  975. }

  976. 

  977. test_cflags(){

  978.     log test_cflags "$@"

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

  980.     check_cc "$@" <<EOF

  981. int x;

  982. EOF

  983. }

  984. 

  985. check_cflags(){

  986.     log check_cflags "$@"

  987.     test_cflags "$@" && add_cflags "$@"

  988. }

  989. 

  990. check_cxxflags(){

  991.     log check_cxxflags "$@"

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

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

  994. int x;

  995. EOF

  996. }

  997. 

  998. test_objcflags(){

  999.     log test_cflags "$@"

  1000.     set -- $($cflags_filter "$@")

  1001.     check_objcc "$@" <<EOF

  1002. int x;

  1003. EOF

  1004. }

  1005. 

  1006. check_objcflags(){

  1007.     log check_cflags "$@"

  1008.     test_objcflags "$@" && add_objcflags "$@"

  1009. }

  1010. 

  1011. test_ldflags(){

  1012.     log test_ldflags "$@"

  1013.     check_ld "cc" "$@" <<EOF

  1014. int main(void){ return 0; }

  1015. EOF

  1016. }

  1017. 

  1018. check_ldflags(){

  1019.     log check_ldflags "$@"

  1020.     test_ldflags "$@" && add_ldflags "$@"

  1021. }

  1022. 

  1023. test_stripflags(){

  1024.     log test_stripflags "$@"

  1025.     # call check_cc to get a fresh TMPO

  1026.     check_cc <<EOF

  1027. int main(void) { return 0; }

  1028. EOF

  1029.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1030. }

  1031. 

  1032. check_stripflags(){

  1033.     log check_stripflags "$@"

  1034.     test_stripflags "$@" && add_stripflags "$@"

  1035. }

  1036. 

  1037. check_header(){

  1038.     log check_header "$@"

  1039.     header=$1

  1040.     shift

  1041.     disable_safe $header

  1042.     check_cpp "$@" <<EOF && enable_safe $header

  1043. #include <$header>

  1044. int x;

  1045. EOF

  1046. }

  1047. 

  1048. check_header_objcc(){

  1049.     log check_header_objcc "$@"

  1050.     rm -f -- "$TMPO"

  1051.     header=$1

  1052.     shift

  1053.     disable_safe $header

  1054.     {

  1055.        echo "#include <$header>"

  1056.        echo "int main(void) { return 0; }"

  1057.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1058. }

  1059. 

  1060. check_func(){

  1061.     log check_func "$@"

  1062.     func=$1

  1063.     shift

  1064.     disable $func

  1065.     check_ld "cc" "$@" <<EOF && enable $func

  1066. extern int $func();

  1067. int main(void){ $func(); }

  1068. EOF

  1069. }

  1070. 

  1071. check_complexfunc(){

  1072.     log check_complexfunc "$@"

  1073.     func=$1

  1074.     narg=$2

  1075.     shift 2

  1076.     test $narg = 2 && args="f, g" || args="f * I"

  1077.     disable $func

  1078.     check_ld "cc" "$@" <<EOF && enable $func

  1079. #include <complex.h>

  1080. #include <math.h>

  1081. float foo(complex float f, complex float g) { return $func($args); }

  1082. int main(void){ return (int) foo; }

  1083. EOF

  1084. }

  1085. 

  1086. check_mathfunc(){

  1087.     log check_mathfunc "$@"

  1088.     func=$1

  1089.     narg=$2

  1090.     shift 2

  1091.     test $narg = 2 && args="f, g" || args="f"

  1092.     disable $func

  1093.     check_ld "cc" "$@" <<EOF && enable $func

  1094. #include <math.h>

  1095. float foo(float f, float g) { return $func($args); }

  1096. int main(void){ return (int) foo; }

  1097. EOF

  1098. }

  1099. 

  1100. check_func_headers(){

  1101.     log check_func_headers "$@"

  1102.     headers=$1

  1103.     funcs=$2

  1104.     shift 2

  1105.     {

  1106.         for hdr in $headers; do

  1107.             print_include $hdr

  1108.         done

  1109.         for func in $funcs; do

  1110.             echo "long check_$func(void) { return (long) $func; }"

  1111.         done

  1112.         echo "int main(void) { return 0; }"

  1113.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1114. }

  1115. 

  1116. check_class_headers_cpp(){

  1117.     log check_class_headers_cpp "$@"

  1118.     headers=$1

  1119.     classes=$2

  1120.     shift 2

  1121.     {

  1122.         for hdr in $headers; do

  1123.             echo "#include <$hdr>"

  1124.         done

  1125.         echo "int main(void) { "

  1126.         i=1

  1127.         for class in $classes; do

  1128.             echo "$class obj$i;"

  1129.             i=$(expr $i + 1)

  1130.         done

  1131.         echo "return 0; }"

  1132.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1133. }

  1134. 

  1135. check_cpp_condition(){

  1136.     log check_cpp_condition "$@"

  1137.     header=$1

  1138.     condition=$2

  1139.     shift 2

  1140.     check_cpp "$@" <<EOF

  1141. #include <$header>

  1142. #if !($condition)

  1143. #error "unsatisfied condition: $condition"

  1144. #endif

  1145. EOF

  1146. }

  1147. 

  1148. check_lib(){

  1149.     log check_lib "$@"

  1150.     header="$1"

  1151.     func="$2"

  1152.     shift 2

  1153.     check_header $header && check_func $func "$@" && add_extralibs "$@"

  1154. }

  1155. 

  1156. check_lib2(){

  1157.     log check_lib2 "$@"

  1158.     headers="$1"

  1159.     funcs="$2"

  1160.     shift 2

  1161.     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"

  1162. }

  1163. 

  1164. check_lib_cpp(){

  1165.     log check_lib_cpp "$@"

  1166.     headers="$1"

  1167.     classes="$2"

  1168.     shift 2

  1169.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1170. }

  1171. 

  1172. check_pkg_config(){

  1173.     log check_pkg_config "$@"

  1174.     pkgandversion="$1"

  1175.     pkg="${1%% *}"

  1176.     headers="$2"

  1177.     funcs="$3"

  1178.     shift 3

  1179.     check_cmd $pkg_config --exists --print-errors $pkgandversion || return

  1180.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1181.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1182.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1183.         set_safe "${pkg}_cflags" $pkg_cflags   &&

  1184.         set_safe "${pkg}_libs"   $pkg_libs

  1185. }

  1186. 

  1187. check_exec(){

  1188.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1189. }

  1190. 

  1191. check_exec_crash(){

  1192.     code=$(cat)

  1193. 

  1194.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1195.     # are safe but may not be available everywhere.  Thus we use

  1196.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1197.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1198.     # is not defined by standard C so it is used conditionally.

  1199. 

  1200.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1201. #include <signal.h>

  1202. static void sighandler(int sig){

  1203.     raise(SIGTERM);

  1204. }

  1205. int foo(void){

  1206.     $code

  1207. }

  1208. int (*func_ptr)(void) = foo;

  1209. int main(void){

  1210.     signal(SIGILL, sighandler);

  1211.     signal(SIGFPE, sighandler);

  1212.     signal(SIGSEGV, sighandler);

  1213. #ifdef SIGBUS

  1214.     signal(SIGBUS, sighandler);

  1215. #endif

  1216.     return func_ptr();

  1217. }

  1218. EOF

  1219. }

  1220. 

  1221. check_type(){

  1222.     log check_type "$@"

  1223.     headers=$1

  1224.     type=$2

  1225.     shift 2

  1226.     disable_safe "$type"

  1227.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1228. }

  1229. 

  1230. check_struct(){

  1231.     log check_struct "$@"

  1232.     headers=$1

  1233.     struct=$2

  1234.     member=$3

  1235.     shift 3

  1236.     disable_safe "${struct}_${member}"

  1237.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1238.         enable_safe "${struct}_${member}"

  1239. }

  1240. 

  1241. check_builtin(){

  1242.     log check_builtin "$@"

  1243.     name=$1

  1244.     headers=$2

  1245.     builtin=$3

  1246.     shift 3

  1247.     disable "$name"

  1248.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1249. }

  1250. 

  1251. check_compile_assert(){

  1252.     log check_compile_assert "$@"

  1253.     name=$1

  1254.     headers=$2

  1255.     condition=$3

  1256.     shift 3

  1257.     disable "$name"

  1258.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1259. }

  1260. 

  1261. require(){

  1262.     name="$1"

  1263.     header="$2"

  1264.     func="$3"

  1265.     shift 3

  1266.     check_lib $header $func "$@" || die "ERROR: $name not found"

  1267. }

  1268. 

  1269. require2(){

  1270.     name="$1"

  1271.     headers="$2"

  1272.     func="$3"

  1273.     shift 3

  1274.     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"

  1275. }

  1276. 

  1277. require_cpp(){

  1278.     name="$1"

  1279.     headers="$2"

  1280.     classes="$3"

  1281.     shift 3

  1282.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1283. }

  1284. 

  1285. use_pkg_config(){

  1286.     pkg="$1"

  1287.     check_pkg_config "$@" || return 1

  1288.     add_cflags    $(get_safe "${pkg}_cflags")

  1289.     add_extralibs $(get_safe "${pkg}_libs")

  1290. }

  1291. 

  1292. require_pkg_config(){

  1293.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1294. }

  1295. 

  1296. require_libfreetype(){

  1297.     log require_libfreetype "$@"

  1298.     pkg="freetype2"

  1299.     check_cmd $pkg_config --exists --print-errors $pkg \

  1300.       || die "ERROR: $pkg not found"

  1301.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1302.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1303.     {

  1304.         echo "#include <ft2build.h>"

  1305.         echo "#include FT_FREETYPE_H"

  1306.         echo "long check_func(void) { return (long) FT_Init_FreeType; }"

  1307.         echo "int main(void) { return 0; }"

  1308.     } | check_ld "cc" $pkg_cflags $pkg_libs \

  1309.       && set_safe "${pkg}_cflags" $pkg_cflags \

  1310.       && set_safe "${pkg}_libs"   $pkg_libs \

  1311.       || die "ERROR: $pkg not found"

  1312.     add_cflags    $(get_safe "${pkg}_cflags")

  1313.     add_extralibs $(get_safe "${pkg}_libs")

  1314. }

  1315. 

  1316. hostcc_e(){

  1317.     eval printf '%s\\n' $HOSTCC_E

  1318. }

  1319. 

  1320. hostcc_o(){

  1321.     eval printf '%s\\n' $HOSTCC_O

  1322. }

  1323. 

  1324. check_host_cc(){

  1325.     log check_host_cc "$@"

  1326.     cat > $TMPC

  1327.     log_file $TMPC

  1328.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1329. }

  1330. 

  1331. check_host_cpp(){

  1332.     log check_host_cpp "$@"

  1333.     cat > $TMPC

  1334.     log_file $TMPC

  1335.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1336. }

  1337. 

  1338. check_host_cppflags(){

  1339.     log check_host_cppflags "$@"

  1340.     check_host_cc "$@" <<EOF && append host_cppflags "$@"

  1341. int x;

  1342. EOF

  1343. }

  1344. 

  1345. check_host_cflags(){

  1346.     log check_host_cflags "$@"

  1347.     set -- $($host_cflags_filter "$@")

  1348.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1349. int x;

  1350. EOF

  1351. }

  1352. 

  1353. check_host_cpp_condition(){

  1354.     log check_host_cpp_condition "$@"

  1355.     header=$1

  1356.     condition=$2

  1357.     shift 2

  1358.     check_host_cpp "$@" <<EOF

  1359. #include <$header>

  1360. #if !($condition)

  1361. #error "unsatisfied condition: $condition"

  1362. #endif

  1363. EOF

  1364. }

  1365. 

  1366. cp_if_changed(){

  1367.     cmp -s "$1" "$2" && echo "$2 is unchanged" && return

  1368.     mkdir -p "$(dirname $2)"

  1369.     $cp_f "$1" "$2"

  1370. }

  1371. 

  1372. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1373. # system-dependent things.

  1374. 

  1375. AVCODEC_COMPONENTS="

  1376.     bsfs

  1377.     decoders

  1378.     encoders

  1379.     hwaccels

  1380.     parsers

  1381. "

  1382. 

  1383. AVDEVICE_COMPONENTS="

  1384.     indevs

  1385.     outdevs

  1386. "

  1387. AVFILTER_COMPONENTS="

  1388.     filters

  1389. "

  1390. AVFORMAT_COMPONENTS="

  1391.     demuxers

  1392.     muxers

  1393.     protocols

  1394. "

  1395. 

  1396. AVRESAMPLE_COMPONENTS=""

  1397. AVUTIL_COMPONENTS=""

  1398. 

  1399. COMPONENT_LIST="

  1400.     $AVCODEC_COMPONENTS

  1401.     $AVDEVICE_COMPONENTS

  1402.     $AVFILTER_COMPONENTS

  1403.     $AVFORMAT_COMPONENTS

  1404.     $AVRESAMPLE_COMPONENTS

  1405.     $AVUTIL_COMPONENTS

  1406. "

  1407. 

  1408. EXAMPLE_LIST="

  1409.     avio_reading_example

  1410.     avio_dir_cmd_example

  1411.     decoding_encoding_example

  1412.     demuxing_decoding_example

  1413.     extract_mvs_example

  1414.     filter_audio_example

  1415.     filtering_audio_example

  1416.     filtering_video_example

  1417.     metadata_example

  1418.     muxing_example

  1419.     qsvdec_example

  1420.     remuxing_example

  1421.     resampling_audio_example

  1422.     scaling_video_example

  1423.     transcode_aac_example

  1424.     transcoding_example

  1425. "

  1426. 

  1427. EXTERNAL_LIBRARY_LIST="

  1428.     avisynth

  1429.     bzlib

  1430.     chromaprint

  1431.     crystalhd

  1432.     decklink

  1433.     frei0r

  1434.     gcrypt

  1435.     gmp

  1436.     gnutls

  1437.     iconv

  1438.     ladspa

  1439.     libaacplus

  1440.     libass

  1441.     libbluray

  1442.     libbs2b

  1443.     libcaca

  1444.     libcdio

  1445.     libcelt

  1446.     libdc1394

  1447.     libdcadec

  1448.     libfaac

  1449.     libfdk_aac

  1450.     libflite

  1451.     libfontconfig

  1452.     libfreetype

  1453.     libfribidi

  1454.     libgme

  1455.     libgsm

  1456.     libiec61883

  1457.     libilbc

  1458.     libkvazaar

  1459.     libmfx

  1460.     libmodplug

  1461.     libmp3lame

  1462.     libnut

  1463.     libopencore_amrnb

  1464.     libopencore_amrwb

  1465.     libopencv

  1466.     libopenh264

  1467.     libopenjpeg

  1468.     libopus

  1469.     libpulse

  1470.     libquvi

  1471.     librtmp

  1472.     librubberband

  1473.     libschroedinger

  1474.     libshine

  1475.     libsmbclient

  1476.     libsnappy

  1477.     libsoxr

  1478.     libspeex

  1479.     libssh

  1480.     libtesseract

  1481.     libtheora

  1482.     libtwolame

  1483.     libutvideo

  1484.     libv4l2

  1485.     libvidstab

  1486.     libvo_aacenc

  1487.     libvo_amrwbenc

  1488.     libvorbis

  1489.     libvpx

  1490.     libwavpack

  1491.     libwebp

  1492.     libx264

  1493.     libx265

  1494.     libxavs

  1495.     libxcb

  1496.     libxcb_shm

  1497.     libxcb_shape

  1498.     libxcb_xfixes

  1499.     libxvid

  1500.     libzimg

  1501.     libzmq

  1502.     libzvbi

  1503.     lzma

  1504.     mmal

  1505.     netcdf

  1506.     nvenc

  1507.     openal

  1508.     opencl

  1509.     opengl

  1510.     openssl

  1511.     schannel

  1512.     sdl

  1513.     securetransport

  1514.     x11grab

  1515.     xlib

  1516.     zlib

  1517. "

  1518. 

  1519. DOCUMENT_LIST="

  1520.     doc

  1521.     htmlpages

  1522.     manpages

  1523.     podpages

  1524.     txtpages

  1525. "

  1526. 

  1527. FEATURE_LIST="

  1528.     ftrapv

  1529.     gray

  1530.     hardcoded_tables

  1531.     runtime_cpudetect

  1532.     safe_bitstream_reader

  1533.     shared

  1534.     small

  1535.     static

  1536.     swscale_alpha

  1537. "

  1538. 

  1539. HWACCEL_LIST="

  1540.     d3d11va

  1541.     dxva2

  1542.     vaapi

  1543.     vda

  1544.     vdpau

  1545.     videotoolbox

  1546.     xvmc

  1547. "

  1548. 

  1549. LIBRARY_LIST="

  1550.     avcodec

  1551.     avdevice

  1552.     avfilter

  1553.     avformat

  1554.     avresample

  1555.     avutil

  1556.     postproc

  1557.     swresample

  1558.     swscale

  1559. "

  1560. 

  1561. LICENSE_LIST="

  1562.     gpl

  1563.     nonfree

  1564.     version3

  1565. "

  1566. 

  1567. PROGRAM_LIST="

  1568.     ffplay

  1569.     ffprobe

  1570.     ffserver

  1571.     ffmpeg

  1572. "

  1573. 

  1574. SUBSYSTEM_LIST="

  1575.     dct

  1576.     dwt

  1577.     error_resilience

  1578.     faan

  1579.     fast_unaligned

  1580.     fft

  1581.     lsp

  1582.     lzo

  1583.     mdct

  1584.     pixelutils

  1585.     network

  1586.     rdft

  1587. "

  1588. 

  1589. CONFIG_LIST="

  1590.     $COMPONENT_LIST

  1591.     $DOCUMENT_LIST

  1592.     $EXAMPLE_LIST

  1593.     $EXTERNAL_LIBRARY_LIST

  1594.     $FEATURE_LIST

  1595.     $HWACCEL_LIST

  1596.     $LICENSE_LIST

  1597.     $LIBRARY_LIST

  1598.     $PROGRAM_LIST

  1599.     $SUBSYSTEM_LIST

  1600.     fontconfig

  1601.     incompatible_libav_abi

  1602.     memalign_hack

  1603.     memory_poisoning

  1604.     neon_clobber_test

  1605.     pic

  1606.     pod2man

  1607.     raise_major

  1608.     thumb

  1609.     valgrind_backtrace

  1610.     xmm_clobber_test

  1611. "

  1612. 

  1613. THREADS_LIST="

  1614.     pthreads

  1615.     os2threads

  1616.     w32threads

  1617. "

  1618. 

  1619. ATOMICS_LIST="

  1620.     atomics_gcc

  1621.     atomics_suncc

  1622.     atomics_win32

  1623. "

  1624. 

  1625. ARCH_LIST="

  1626.     aarch64

  1627.     alpha

  1628.     arm

  1629.     avr32

  1630.     avr32_ap

  1631.     avr32_uc

  1632.     bfin

  1633.     ia64

  1634.     m68k

  1635.     mips

  1636.     mips64

  1637.     parisc

  1638.     ppc

  1639.     ppc64

  1640.     s390

  1641.     sh4

  1642.     sparc

  1643.     sparc64

  1644.     tilegx

  1645.     tilepro

  1646.     tomi

  1647.     x86

  1648.     x86_32

  1649.     x86_64

  1650. "

  1651. 

  1652. ARCH_EXT_LIST_ARM="

  1653.     armv5te

  1654.     armv6

  1655.     armv6t2

  1656.     armv8

  1657.     neon

  1658.     vfp

  1659.     vfpv3

  1660.     setend

  1661. "

  1662. 

  1663. ARCH_EXT_LIST_MIPS="

  1664.     mipsfpu

  1665.     mips32r2

  1666.     mips64r2

  1667.     mips32r6

  1668.     mips64r6

  1669.     mipsdsp

  1670.     mipsdspr2

  1671.     msa

  1672. "

  1673. 

  1674. ARCH_EXT_LIST_LOONGSON="

  1675.     loongson2

  1676.     loongson3

  1677.     mmi

  1678. "

  1679. 

  1680. ARCH_EXT_LIST_X86_SIMD="

  1681.     aesni

  1682.     amd3dnow

  1683.     amd3dnowext

  1684.     avx

  1685.     avx2

  1686.     fma3

  1687.     fma4

  1688.     mmx

  1689.     mmxext

  1690.     sse

  1691.     sse2

  1692.     sse3

  1693.     sse4

  1694.     sse42

  1695.     ssse3

  1696.     xop

  1697. "

  1698. 

  1699. ARCH_EXT_LIST_PPC="

  1700.     altivec

  1701.     dcbzl

  1702.     ldbrx

  1703.     power8

  1704.     ppc4xx

  1705.     vsx

  1706. "

  1707. 

  1708. ARCH_EXT_LIST_X86="

  1709.     $ARCH_EXT_LIST_X86_SIMD

  1710.     cpunop

  1711.     i686

  1712. "

  1713. 

  1714. ARCH_EXT_LIST="

  1715.     $ARCH_EXT_LIST_ARM

  1716.     $ARCH_EXT_LIST_PPC

  1717.     $ARCH_EXT_LIST_X86

  1718.     $ARCH_EXT_LIST_MIPS

  1719.     $ARCH_EXT_LIST_LOONGSON

  1720. "

  1721. 

  1722. ARCH_FEATURES="

  1723.     aligned_stack

  1724.     fast_64bit

  1725.     fast_clz

  1726.     fast_cmov

  1727.     local_aligned_8

  1728.     local_aligned_16

  1729.     local_aligned_32

  1730.     simd_align_16

  1731. "

  1732. 

  1733. BUILTIN_LIST="

  1734.     atomic_cas_ptr

  1735.     atomic_compare_exchange

  1736.     machine_rw_barrier

  1737.     MemoryBarrier

  1738.     mm_empty

  1739.     rdtsc

  1740.     sarestart

  1741.     sync_val_compare_and_swap

  1742. "

  1743. HAVE_LIST_CMDLINE="

  1744.     inline_asm

  1745.     symver

  1746.     yasm

  1747. "

  1748. 

  1749. HAVE_LIST_PUB="

  1750.     bigendian

  1751.     fast_unaligned

  1752.     incompatible_libav_abi

  1753. "

  1754. 

  1755. HEADERS_LIST="

  1756.     alsa_asoundlib_h

  1757.     altivec_h

  1758.     arpa_inet_h

  1759.     asm_types_h

  1760.     cdio_paranoia_h

  1761.     cdio_paranoia_paranoia_h

  1762.     dev_bktr_ioctl_bt848_h

  1763.     dev_bktr_ioctl_meteor_h

  1764.     dev_ic_bt8xx_h

  1765.     dev_video_bktr_ioctl_bt848_h

  1766.     dev_video_meteor_ioctl_meteor_h

  1767.     direct_h

  1768.     dirent_h

  1769.     dlfcn_h

  1770.     d3d11_h

  1771.     dxva_h

  1772.     ES2_gl_h

  1773.     gsm_h

  1774.     io_h

  1775.     mach_mach_time_h

  1776.     machine_ioctl_bt848_h

  1777.     machine_ioctl_meteor_h

  1778.     malloc_h

  1779.     openjpeg_2_1_openjpeg_h

  1780.     openjpeg_2_0_openjpeg_h

  1781.     openjpeg_1_5_openjpeg_h

  1782.     OpenGL_gl3_h

  1783.     poll_h

  1784.     sndio_h

  1785.     soundcard_h

  1786.     sys_mman_h

  1787.     sys_param_h

  1788.     sys_resource_h

  1789.     sys_select_h

  1790.     sys_soundcard_h

  1791.     sys_time_h

  1792.     sys_un_h

  1793.     sys_videoio_h

  1794.     termios_h

  1795.     udplite_h

  1796.     unistd_h

  1797.     valgrind_valgrind_h

  1798.     windows_h

  1799.     winsock2_h

  1800. "

  1801. 

  1802. INTRINSICS_LIST="

  1803.     intrinsics_neon

  1804. "

  1805. 

  1806. COMPLEX_FUNCS="

  1807.     cabs

  1808.     cexp

  1809. "

  1810. 

  1811. MATH_FUNCS="

  1812.     atanf

  1813.     atan2f

  1814.     cbrt

  1815.     cbrtf

  1816.     copysign

  1817.     cosf

  1818.     erf

  1819.     exp2

  1820.     exp2f

  1821.     expf

  1822.     hypot

  1823.     isinf

  1824.     isnan

  1825.     ldexpf

  1826.     llrint

  1827.     llrintf

  1828.     log2

  1829.     log2f

  1830.     log10f

  1831.     lrint

  1832.     lrintf

  1833.     powf

  1834.     rint

  1835.     round

  1836.     roundf

  1837.     sinf

  1838.     trunc

  1839.     truncf

  1840. "

  1841. 

  1842. SYSTEM_FUNCS="

  1843.     access

  1844.     aligned_malloc

  1845.     arc4random

  1846.     clock_gettime

  1847.     closesocket

  1848.     CommandLineToArgvW

  1849.     CoTaskMemFree

  1850.     CryptGenRandom

  1851.     dlopen

  1852.     fcntl

  1853.     flt_lim

  1854.     fork

  1855.     getaddrinfo

  1856.     gethrtime

  1857.     getopt

  1858.     GetProcessAffinityMask

  1859.     GetProcessMemoryInfo

  1860.     GetProcessTimes

  1861.     getrusage

  1862.     GetSystemTimeAsFileTime

  1863.     gettimeofday

  1864.     glob

  1865.     glXGetProcAddress

  1866.     gmtime_r

  1867.     inet_aton

  1868.     isatty

  1869.     jack_port_get_latency_range

  1870.     kbhit

  1871.     localtime_r

  1872.     lstat

  1873.     lzo1x_999_compress

  1874.     mach_absolute_time

  1875.     MapViewOfFile

  1876.     memalign

  1877.     mkstemp

  1878.     mmap

  1879.     mprotect

  1880.     nanosleep

  1881.     PeekNamedPipe

  1882.     posix_memalign

  1883.     pthread_cancel

  1884.     sched_getaffinity

  1885.     SetConsoleTextAttribute

  1886.     SetConsoleCtrlHandler

  1887.     setmode

  1888.     setrlimit

  1889.     Sleep

  1890.     strerror_r

  1891.     sysconf

  1892.     sysctl

  1893.     usleep

  1894.     UTGetOSTypeFromString

  1895.     VirtualAlloc

  1896.     wglGetProcAddress

  1897. "

  1898. 

  1899. TOOLCHAIN_FEATURES="

  1900.     as_dn_directive

  1901.     as_func

  1902.     as_object_arch

  1903.     asm_mod_q

  1904.     attribute_may_alias

  1905.     attribute_packed

  1906.     ebp_available

  1907.     ebx_available

  1908.     gnu_as

  1909.     gnu_windres

  1910.     ibm_asm

  1911.     inline_asm_labels

  1912.     inline_asm_nonlocal_labels

  1913.     inline_asm_direct_symbol_refs

  1914.     pragma_deprecated

  1915.     rsync_contimeout

  1916.     symver_asm_label

  1917.     symver_gnu_asm

  1918.     vfp_args

  1919.     xform_asm

  1920.     xmm_clobbers

  1921. "

  1922. 

  1923. TYPES_LIST="

  1924.     CONDITION_VARIABLE_Ptr

  1925.     socklen_t

  1926.     struct_addrinfo

  1927.     struct_group_source_req

  1928.     struct_ip_mreq_source

  1929.     struct_ipv6_mreq

  1930.     struct_pollfd

  1931.     struct_rusage_ru_maxrss

  1932.     struct_sctp_event_subscribe

  1933.     struct_sockaddr_in6

  1934.     struct_sockaddr_sa_len

  1935.     struct_sockaddr_storage

  1936.     struct_stat_st_mtim_tv_nsec

  1937.     struct_v4l2_frmivalenum_discrete

  1938. "

  1939. 

  1940. HAVE_LIST="

  1941.     $ARCH_EXT_LIST

  1942.     $(add_suffix _external $ARCH_EXT_LIST)

  1943.     $(add_suffix _inline   $ARCH_EXT_LIST)

  1944.     $ARCH_FEATURES

  1945.     $ATOMICS_LIST

  1946.     $BUILTIN_LIST

  1947.     $COMPLEX_FUNCS

  1948.     $HAVE_LIST_CMDLINE

  1949.     $HAVE_LIST_PUB

  1950.     $HEADERS_LIST

  1951.     $INTRINSICS_LIST

  1952.     $MATH_FUNCS

  1953.     $SYSTEM_FUNCS

  1954.     $THREADS_LIST

  1955.     $TOOLCHAIN_FEATURES

  1956.     $TYPES_LIST

  1957.     atomics_native

  1958.     dos_paths

  1959.     dxva2api_cobj

  1960.     dxva2_lib

  1961.     winrt

  1962.     libc_msvcrt

  1963.     libdc1394_1

  1964.     libdc1394_2

  1965.     makeinfo

  1966.     makeinfo_html

  1967.     perl

  1968.     pod2man

  1969.     sdl

  1970.     section_data_rel_ro

  1971.     texi2html

  1972.     threads

  1973.     vaapi_x11

  1974.     vdpau_x11

  1975.     xlib

  1976. "

  1977. 

  1978. # options emitted with CONFIG_ prefix but not available on the command line

  1979. CONFIG_EXTRA="

  1980.     aandcttables

  1981.     ac3dsp

  1982.     audio_frame_queue

  1983.     audiodsp

  1984.     blockdsp

  1985.     bswapdsp

  1986.     cabac

  1987.     dirac_parse

  1988.     dvprofile

  1989.     exif

  1990.     faandct

  1991.     faanidct

  1992.     fdctdsp

  1993.     flacdsp

  1994.     fmtconvert

  1995.     frame_thread_encoder

  1996.     g722dsp

  1997.     golomb

  1998.     gplv3

  1999.     h263dsp

  2000.     h264chroma

  2001.     h264dsp

  2002.     h264pred

  2003.     h264qpel

  2004.     hpeldsp

  2005.     huffman

  2006.     huffyuvdsp

  2007.     huffyuvencdsp

  2008.     idctdsp

  2009.     iirfilter

  2010.     imdct15

  2011.     intrax8

  2012.     ividsp

  2013.     jpegtables

  2014.     libx262

  2015.     lgplv3

  2016.     llauddsp

  2017.     llviddsp

  2018.     lpc

  2019.     lzf

  2020.     me_cmp

  2021.     mpeg_er

  2022.     mpegaudio

  2023.     mpegaudiodsp

  2024.     mpegvideo

  2025.     mpegvideoenc

  2026.     mss34dsp

  2027.     pixblockdsp

  2028.     qpeldsp

  2029.     qsv

  2030.     qsvdec

  2031.     qsvenc

  2032.     rangecoder

  2033.     riffdec

  2034.     riffenc

  2035.     rtpdec

  2036.     rtpenc_chain

  2037.     rv34dsp

  2038.     sinewin

  2039.     snappy

  2040.     startcode

  2041.     texturedsp

  2042.     texturedspenc

  2043.     tpeldsp

  2044.     videodsp

  2045.     vp3dsp

  2046.     vp56dsp

  2047.     vp8dsp

  2048.     wma_freqs

  2049.     wmv2dsp

  2050. "

  2051. 

  2052. CMDLINE_SELECT="

  2053.     $ARCH_EXT_LIST

  2054.     $CONFIG_LIST

  2055.     $HAVE_LIST_CMDLINE

  2056.     $THREADS_LIST

  2057.     asm

  2058.     cross_compile

  2059.     debug

  2060.     extra_warnings

  2061.     logging

  2062.     lto

  2063.     optimizations

  2064.     rpath

  2065.     stripping

  2066. "

  2067. 

  2068. PATHS_LIST="

  2069.     bindir

  2070.     datadir

  2071.     docdir

  2072.     incdir

  2073.     libdir

  2074.     mandir

  2075.     pkgconfigdir

  2076.     prefix

  2077.     shlibdir

  2078. "

  2079. 

  2080. CMDLINE_SET="

  2081.     $PATHS_LIST

  2082.     ar

  2083.     arch

  2084.     as

  2085.     assert_level

  2086.     build_suffix

  2087.     cc

  2088.     objcc

  2089.     cpu

  2090.     cross_prefix

  2091.     custom_allocator

  2092.     cxx

  2093.     dep_cc

  2094.     doxygen

  2095.     env

  2096.     extra_version

  2097.     gas

  2098.     host_cc

  2099.     host_cflags

  2100.     host_ld

  2101.     host_ldflags

  2102.     host_libs

  2103.     host_os

  2104.     install

  2105.     ld

  2106.     logfile

  2107.     malloc_prefix

  2108.     nm

  2109.     optflags

  2110.     pkg_config

  2111.     pkg_config_flags

  2112.     progs_suffix

  2113.     random_seed

  2114.     ranlib

  2115.     samples

  2116.     strip

  2117.     sws_max_filter_size

  2118.     sysinclude

  2119.     sysroot

  2120.     target_exec

  2121.     target_os

  2122.     target_path

  2123.     target_samples

  2124.     tempprefix

  2125.     toolchain

  2126.     valgrind

  2127.     yasmexe

  2128. "

  2129. 

  2130. CMDLINE_APPEND="

  2131.     extra_cflags

  2132.     extra_cxxflags

  2133.     extra_objcflags

  2134.     host_cppflags

  2135. "

  2136. 

  2137. # code dependency declarations

  2138. 

  2139. # architecture extensions

  2140. 

  2141. armv5te_deps="arm"

  2142. armv6_deps="arm"

  2143. armv6t2_deps="arm"

  2144. armv8_deps="aarch64"

  2145. neon_deps_any="aarch64 arm"

  2146. intrinsics_neon_deps="neon"

  2147. vfp_deps_any="aarch64 arm"

  2148. vfpv3_deps="vfp"

  2149. setend_deps="arm"

  2150. 

  2151. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2152. 

  2153. mipsfpu_deps="mips"

  2154. mipsdsp_deps="mips"

  2155. mipsdspr2_deps="mips"

  2156. mips32r2_deps="mips"

  2157. mips32r6_deps="mips"

  2158. mips64r2_deps="mips"

  2159. mips64r6_deps="mips"

  2160. msa_deps="mips"

  2161. mmi_deps="mips"

  2162. 

  2163. altivec_deps="ppc"

  2164. dcbzl_deps="ppc"

  2165. ldbrx_deps="ppc"

  2166. ppc4xx_deps="ppc"

  2167. vsx_deps="altivec"

  2168. power8_deps="vsx"

  2169. 

  2170. cpunop_deps="i686"

  2171. x86_64_select="i686"

  2172. x86_64_suggest="fast_cmov"

  2173. 

  2174. amd3dnow_deps="mmx"

  2175. amd3dnowext_deps="amd3dnow"

  2176. i686_deps="x86"

  2177. mmx_deps="x86"

  2178. mmxext_deps="mmx"

  2179. sse_deps="mmxext"

  2180. sse2_deps="sse"

  2181. sse3_deps="sse2"

  2182. ssse3_deps="sse3"

  2183. sse4_deps="ssse3"

  2184. sse42_deps="sse4"

  2185. aesni_deps="sse42"

  2186. avx_deps="sse42"

  2187. xop_deps="avx"

  2188. fma3_deps="avx"

  2189. fma4_deps="avx"

  2190. avx2_deps="avx"

  2191. 

  2192. mmx_external_deps="yasm"

  2193. mmx_inline_deps="inline_asm"

  2194. mmx_suggest="mmx_external mmx_inline"

  2195. 

  2196. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2197.     eval dep=\$${ext}_deps

  2198.     eval ${ext}_external_deps='"${dep}_external"'

  2199.     eval ${ext}_inline_deps='"${dep}_inline"'

  2200.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2201. done

  2202. 

  2203. aligned_stack_if_any="aarch64 ppc x86"

  2204. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2205. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2206. fast_unaligned_if_any="aarch64 ppc x86"

  2207. simd_align_16_if_any="altivec neon sse"

  2208. 

  2209. # system capabilities

  2210. symver_if_any="symver_asm_label symver_gnu_asm"

  2211. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2212. 

  2213. # threading support

  2214. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2215. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2216. atomics_win32_if="MemoryBarrier"

  2217. atomics_native_if_any="$ATOMICS_LIST"

  2218. w32threads_deps="atomics_native"

  2219. threads_if_any="$THREADS_LIST"

  2220. 

  2221. # subsystems

  2222. dct_select="rdft"

  2223. dirac_parse_select="golomb"

  2224. error_resilience_select="me_cmp"

  2225. faandct_deps="faan fdctdsp"

  2226. faanidct_deps="faan idctdsp"

  2227. frame_thread_encoder_deps="encoders threads"

  2228. intrax8_select="error_resilience"

  2229. mdct_select="fft"

  2230. rdft_select="fft"

  2231. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2232. mpeg_er_select="error_resilience"

  2233. mpegaudio_select="mpegaudiodsp"

  2234. mpegaudiodsp_select="dct"

  2235. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2236. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2237. qsvdec_select="qsv"

  2238. qsvenc_select="qsv"

  2239. 

  2240. # decoders / encoders

  2241. aac_decoder_select="imdct15 mdct sinewin"

  2242. aac_fixed_decoder_select="mdct sinewin"

  2243. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2244. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2245. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2246. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2247. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2248. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2249. adpcm_g722_decoder_select="g722dsp"

  2250. adpcm_g722_encoder_select="g722dsp"

  2251. aic_decoder_select="golomb idctdsp"

  2252. alac_encoder_select="lpc"

  2253. als_decoder_select="bswapdsp"

  2254. amrnb_decoder_select="lsp"

  2255. amrwb_decoder_select="lsp"

  2256. amv_decoder_select="sp5x_decoder exif"

  2257. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2258. ape_decoder_select="bswapdsp llauddsp"

  2259. apng_decoder_select="zlib"

  2260. apng_encoder_select="huffyuvencdsp zlib"

  2261. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2262. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2263. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2264. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2265. atrac1_decoder_select="mdct sinewin"

  2266. atrac3_decoder_select="mdct"

  2267. atrac3p_decoder_select="mdct sinewin"

  2268. avrn_decoder_select="exif jpegtables"

  2269. bink_decoder_select="blockdsp hpeldsp"

  2270. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2271. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2272. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2273. cllc_decoder_select="bswapdsp"

  2274. comfortnoise_encoder_select="lpc"

  2275. cook_decoder_select="audiodsp mdct sinewin"

  2276. cscd_decoder_select="lzo"

  2277. cscd_decoder_suggest="zlib"

  2278. dca_decoder_select="fmtconvert mdct"

  2279. dds_decoder_select="texturedsp"

  2280. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2281. dnxhd_decoder_select="blockdsp idctdsp"

  2282. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2283. dvvideo_decoder_select="dvprofile idctdsp"

  2284. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2285. dxa_decoder_select="zlib"

  2286. dxv_decoder_select="lzf texturedsp"

  2287. eac3_decoder_select="ac3_decoder"

  2288. eac3_encoder_select="ac3_encoder"

  2289. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2290. eatgq_decoder_select="aandcttables"

  2291. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"

  2292. exr_decoder_select="zlib"

  2293. ffv1_decoder_select="golomb rangecoder"

  2294. ffv1_encoder_select="rangecoder"

  2295. ffvhuff_decoder_select="huffyuv_decoder"

  2296. ffvhuff_encoder_select="huffyuv_encoder"

  2297. fic_decoder_select="golomb"

  2298. flac_decoder_select="flacdsp golomb"

  2299. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2300. flashsv_decoder_select="zlib"

  2301. flashsv_encoder_select="zlib"

  2302. flashsv2_encoder_select="zlib"

  2303. flashsv2_decoder_select="zlib"

  2304. flv_decoder_select="h263_decoder"

  2305. flv_encoder_select="h263_encoder"

  2306. fourxm_decoder_select="blockdsp bswapdsp"

  2307. fraps_decoder_select="bswapdsp huffman"

  2308. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2309. g729_decoder_select="audiodsp"

  2310. h261_decoder_select="mpegvideo"

  2311. h261_encoder_select="aandcttables mpegvideoenc"

  2312. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2313. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2314. h263i_decoder_select="h263_decoder"

  2315. h263p_decoder_select="h263_decoder"

  2316. h263p_encoder_select="h263_encoder"

  2317. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"

  2318. h264_decoder_suggest="error_resilience"

  2319. h264_qsv_decoder_deps="libmfx"

  2320. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2321. h264_qsv_encoder_deps="libmfx"

  2322. h264_qsv_encoder_select="qsvenc"

  2323. hap_decoder_select="snappy texturedsp"

  2324. hap_encoder_deps="libsnappy"

  2325. hap_encoder_select="texturedspenc"

  2326. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2327. hevc_qsv_encoder_deps="libmfx"

  2328. hevc_qsv_decoder_deps="libmfx"

  2329. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2330. hevc_qsv_encoder_select="qsvenc"

  2331. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2332. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2333. iac_decoder_select="imc_decoder"

  2334. imc_decoder_select="bswapdsp fft mdct sinewin"

  2335. indeo3_decoder_select="hpeldsp"

  2336. indeo4_decoder_select="ividsp"

  2337. indeo5_decoder_select="ividsp"

  2338. interplay_video_decoder_select="hpeldsp"

  2339. jpegls_decoder_select="golomb mjpeg_decoder"

  2340. jpegls_encoder_select="golomb"

  2341. jv_decoder_select="blockdsp"

  2342. lagarith_decoder_select="huffyuvdsp"

  2343. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2344. loco_decoder_select="golomb"

  2345. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2346. metasound_decoder_select="lsp mdct sinewin"

  2347. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2348. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2349. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2350. mjpegb_decoder_select="mjpeg_decoder"

  2351. mlp_decoder_select="mlp_parser"

  2352. motionpixels_decoder_select="bswapdsp"

  2353. mp1_decoder_select="mpegaudio"

  2354. mp1float_decoder_select="mpegaudio"

  2355. mp2_decoder_select="mpegaudio"

  2356. mp2float_decoder_select="mpegaudio"

  2357. mp3_decoder_select="mpegaudio"

  2358. mp3adu_decoder_select="mpegaudio"

  2359. mp3adufloat_decoder_select="mpegaudio"

  2360. mp3float_decoder_select="mpegaudio"

  2361. mp3on4_decoder_select="mpegaudio"

  2362. mp3on4float_decoder_select="mpegaudio"

  2363. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2364. mpc8_decoder_select="mpegaudiodsp"

  2365. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2366. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2367. mpegvideo_decoder_select="mpegvideo"

  2368. mpeg1video_decoder_select="mpegvideo"

  2369. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2370. mpeg2video_decoder_select="mpegvideo"

  2371. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2372. mpeg2_qsv_decoder_deps="libmfx"

  2373. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2374. mpeg2_qsv_encoder_deps="libmfx"

  2375. mpeg2_qsv_encoder_select="qsvenc"

  2376. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2377. mpeg4_encoder_select="h263_encoder"

  2378. msa1_decoder_select="mss34dsp"

  2379. msmpeg4v1_decoder_select="h263_decoder"

  2380. msmpeg4v2_decoder_select="h263_decoder"

  2381. msmpeg4v2_encoder_select="h263_encoder"

  2382. msmpeg4v3_decoder_select="h263_decoder"

  2383. msmpeg4v3_encoder_select="h263_encoder"

  2384. mss2_decoder_select="vc1_decoder"

  2385. mts2_decoder_select="mss34dsp"

  2386. mxpeg_decoder_select="mjpeg_decoder"

  2387. nellymoser_decoder_select="mdct sinewin"

  2388. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2389. nuv_decoder_select="idctdsp lzo"

  2390. on2avc_decoder_select="mdct"

  2391. opus_decoder_deps="swresample"

  2392. opus_decoder_select="imdct15"

  2393. png_decoder_select="zlib"

  2394. png_encoder_select="huffyuvencdsp zlib"

  2395. prores_decoder_select="blockdsp idctdsp"

  2396. prores_encoder_select="fdctdsp"

  2397. qcelp_decoder_select="lsp"

  2398. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2399. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2400. ra_144_decoder_select="audiodsp"

  2401. ralf_decoder_select="golomb"

  2402. rawvideo_decoder_select="bswapdsp"

  2403. rscc_decoder_select="zlib"

  2404. rtjpeg_decoder_select="me_cmp"

  2405. rv10_decoder_select="h263_decoder"

  2406. rv10_encoder_select="h263_encoder"

  2407. rv20_decoder_select="h263_decoder"

  2408. rv20_encoder_select="h263_encoder"

  2409. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2410. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2411. screenpresso_decoder_select="zlib"

  2412. shorten_decoder_select="golomb"

  2413. sipr_decoder_select="lsp"

  2414. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2415. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2416. sonic_decoder_select="golomb rangecoder"

  2417. sonic_encoder_select="golomb rangecoder"

  2418. sonic_ls_encoder_select="golomb rangecoder"

  2419. sp5x_decoder_select="mjpeg_decoder"

  2420. svq1_decoder_select="hpeldsp"

  2421. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2422. svq3_decoder_select="h264_decoder hpeldsp tpeldsp"

  2423. svq3_decoder_suggest="zlib"

  2424. tak_decoder_select="audiodsp"

  2425. tdsc_decoder_select="zlib mjpeg_decoder"

  2426. theora_decoder_select="vp3_decoder"

  2427. thp_decoder_select="mjpeg_decoder"

  2428. tiff_decoder_suggest="zlib lzma"

  2429. tiff_encoder_suggest="zlib"

  2430. truehd_decoder_select="mlp_parser"

  2431. truemotion2_decoder_select="bswapdsp"

  2432. truespeech_decoder_select="bswapdsp"

  2433. tscc_decoder_select="zlib"

  2434. twinvq_decoder_select="mdct lsp sinewin"

  2435. txd_decoder_select="texturedsp"

  2436. utvideo_decoder_select="bswapdsp"

  2437. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2438. vble_decoder_select="huffyuvdsp"

  2439. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"

  2440. vc1image_decoder_select="vc1_decoder"

  2441. vc1_qsv_decoder_deps="libmfx"

  2442. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2443. vorbis_decoder_select="mdct"

  2444. vorbis_encoder_select="mdct"

  2445. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2446. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2447. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2448. vp6a_decoder_select="vp6_decoder"

  2449. vp6f_decoder_select="vp6_decoder"

  2450. vp7_decoder_select="h264pred videodsp vp8dsp"

  2451. vp8_decoder_select="h264pred videodsp vp8dsp"

  2452. vp9_decoder_select="videodsp vp9_parser"

  2453. webp_decoder_select="vp8_decoder"

  2454. wmalossless_decoder_select="llauddsp"

  2455. wmapro_decoder_select="mdct sinewin wma_freqs"

  2456. wmav1_decoder_select="mdct sinewin wma_freqs"

  2457. wmav1_encoder_select="mdct sinewin wma_freqs"

  2458. wmav2_decoder_select="mdct sinewin wma_freqs"

  2459. wmav2_encoder_select="mdct sinewin wma_freqs"

  2460. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2461. wmv1_decoder_select="h263_decoder"

  2462. wmv1_encoder_select="h263_encoder"

  2463. wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2464. wmv2_encoder_select="h263_encoder wmv2dsp"

  2465. wmv3_decoder_select="vc1_decoder"

  2466. wmv3image_decoder_select="wmv3_decoder"

  2467. zerocodec_decoder_select="zlib"

  2468. zlib_decoder_select="zlib"

  2469. zlib_encoder_select="zlib"

  2470. zmbv_decoder_select="zlib"

  2471. zmbv_encoder_select="zlib"

  2472. 

  2473. # hardware accelerators

  2474. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2475. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2476. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2477. vaapi_deps="va_va_h"

  2478. vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"

  2479. vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"

  2480. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2481. videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"

  2482. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"

  2483. xvmc_deps="X11_extensions_XvMClib_h"

  2484. 

  2485. h263_vaapi_hwaccel_deps="vaapi"

  2486. h263_vaapi_hwaccel_select="h263_decoder"

  2487. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2488. h263_videotoolbox_hwaccel_select="h263_decoder"

  2489. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2490. h264_d3d11va_hwaccel_deps="d3d11va"

  2491. h264_d3d11va_hwaccel_select="h264_decoder"

  2492. h264_dxva2_hwaccel_deps="dxva2"

  2493. h264_dxva2_hwaccel_select="h264_decoder"

  2494. h264_mmal_decoder_deps="mmal"

  2495. h264_mmal_hwaccel_deps="mmal"

  2496. h264_mmal_decoder_select="h264_decoder"

  2497. h264_mmal_encoder_deps="mmal"

  2498. h264_qsv_hwaccel_deps="libmfx"

  2499. h264_vaapi_hwaccel_deps="vaapi"

  2500. h264_vaapi_hwaccel_select="h264_decoder"

  2501. h264_vda_decoder_deps="vda"

  2502. h264_vda_decoder_select="h264_decoder"

  2503. h264_vda_hwaccel_deps="vda"

  2504. h264_vda_hwaccel_select="h264_decoder"

  2505. h264_vda_old_hwaccel_deps="vda"

  2506. h264_vda_old_hwaccel_select="h264_decoder"

  2507. h264_vdpau_decoder_deps="vdpau"

  2508. h264_vdpau_decoder_select="h264_decoder"

  2509. h264_vdpau_hwaccel_deps="vdpau"

  2510. h264_vdpau_hwaccel_select="h264_decoder"

  2511. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2512. h264_videotoolbox_hwaccel_select="h264_decoder"

  2513. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2514. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2515. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2516. hevc_dxva2_hwaccel_select="hevc_decoder"

  2517. hevc_qsv_hwaccel_deps="libmfx"

  2518. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2519. hevc_vaapi_hwaccel_select="hevc_decoder"

  2520. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2521. hevc_vdpau_hwaccel_select="hevc_decoder"

  2522. mpeg_vdpau_decoder_deps="vdpau"

  2523. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2524. mpeg_xvmc_hwaccel_deps="xvmc"

  2525. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2526. mpeg1_vdpau_decoder_deps="vdpau"

  2527. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2528. mpeg1_vdpau_hwaccel_deps="vdpau"

  2529. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2530. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2531. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2532. mpeg1_xvmc_hwaccel_deps="xvmc"

  2533. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2534. mpeg2_crystalhd_decoder_select="crystalhd"

  2535. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2536. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2537. mpeg2_dxva2_hwaccel_deps="dxva2"

  2538. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2539. mpeg2_mmal_decoder_deps="mmal"

  2540. mpeg2_mmal_hwaccel_deps="mmal"

  2541. mpeg2_mmal_decoder_select="mpeg2video_decoder"

  2542. mpeg2_qsv_hwaccel_deps="libmfx"

  2543. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2544. mpeg2_vaapi_hwaccel_deps="vaapi"

  2545. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2546. mpeg2_vdpau_hwaccel_deps="vdpau"

  2547. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2548. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2549. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2550. mpeg2_xvmc_hwaccel_deps="xvmc"

  2551. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2552. mpeg4_crystalhd_decoder_select="crystalhd"

  2553. mpeg4_vaapi_hwaccel_deps="vaapi"

  2554. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2555. mpeg4_vdpau_decoder_deps="vdpau"

  2556. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2557. mpeg4_vdpau_hwaccel_deps="vdpau"

  2558. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2559. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2560. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2561. msmpeg4_crystalhd_decoder_select="crystalhd"

  2562. vc1_crystalhd_decoder_select="crystalhd"

  2563. vc1_d3d11va_hwaccel_deps="d3d11va"

  2564. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2565. vc1_dxva2_hwaccel_deps="dxva2"

  2566. vc1_dxva2_hwaccel_select="vc1_decoder"

  2567. vc1_vaapi_hwaccel_deps="vaapi"

  2568. vc1_vaapi_hwaccel_select="vc1_decoder"

  2569. vc1_vdpau_decoder_deps="vdpau"

  2570. vc1_vdpau_decoder_select="vc1_decoder"

  2571. vc1_vdpau_hwaccel_deps="vdpau"

  2572. vc1_vdpau_hwaccel_select="vc1_decoder"

  2573. vc1_mmal_decoder_deps="mmal"

  2574. vc1_mmal_hwaccel_deps="mmal"

  2575. vc1_mmal_decoder_select="vc1_decoder"

  2576. vc1_qsv_hwaccel_deps="libmfx"

  2577. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2578. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2579. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2580. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2581. vp9_dxva2_hwaccel_select="vp9_decoder"

  2582. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"

  2583. vp9_vaapi_hwaccel_select="vp9_decoder"

  2584. wmv3_crystalhd_decoder_select="crystalhd"

  2585. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2586. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2587. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2588. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2589. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2590. 

  2591. # parsers

  2592. h264_parser_select="h264_decoder"

  2593. hevc_parser_select="golomb"

  2594. mpegvideo_parser_select="mpegvideo"

  2595. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2596. vc1_parser_select="mpegvideo startcode vc1_decoder"

  2597. 

  2598. # bitstream_filters

  2599. mjpeg2jpeg_bsf_select="jpegtables"

  2600. 

  2601. # external libraries

  2602. chromaprint_muxer_deps="chromaprint"

  2603. libaacplus_encoder_deps="libaacplus"

  2604. libcelt_decoder_deps="libcelt"

  2605. libdcadec_decoder_deps="libdcadec"

  2606. libfaac_encoder_deps="libfaac"

  2607. libfaac_encoder_select="audio_frame_queue"

  2608. libfdk_aac_decoder_deps="libfdk_aac"

  2609. libfdk_aac_encoder_deps="libfdk_aac"

  2610. libfdk_aac_encoder_select="audio_frame_queue"

  2611. libgme_demuxer_deps="libgme"

  2612. libgsm_decoder_deps="libgsm"

  2613. libgsm_encoder_deps="libgsm"

  2614. libgsm_ms_decoder_deps="libgsm"

  2615. libgsm_ms_encoder_deps="libgsm"

  2616. libilbc_decoder_deps="libilbc"

  2617. libilbc_encoder_deps="libilbc"

  2618. libkvazaar_encoder_deps="libkvazaar"

  2619. libmodplug_demuxer_deps="libmodplug"

  2620. libmp3lame_encoder_deps="libmp3lame"

  2621. libmp3lame_encoder_select="audio_frame_queue"

  2622. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2623. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2624. libopencore_amrnb_encoder_select="audio_frame_queue"

  2625. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2626. libopenh264_encoder_deps="libopenh264"

  2627. libopenjpeg_decoder_deps="libopenjpeg"

  2628. libopenjpeg_encoder_deps="libopenjpeg"

  2629. libopus_decoder_deps="libopus"

  2630. libopus_encoder_deps="libopus"

  2631. libopus_encoder_select="audio_frame_queue"

  2632. libquvi_demuxer_deps="libquvi"

  2633. libschroedinger_decoder_deps="libschroedinger"

  2634. libschroedinger_encoder_deps="libschroedinger"

  2635. libshine_encoder_deps="libshine"

  2636. libshine_encoder_select="audio_frame_queue"

  2637. libspeex_decoder_deps="libspeex"

  2638. libspeex_encoder_deps="libspeex"

  2639. libspeex_encoder_select="audio_frame_queue"

  2640. libtheora_encoder_deps="libtheora"

  2641. libtwolame_encoder_deps="libtwolame"

  2642. libvo_aacenc_encoder_deps="libvo_aacenc"

  2643. libvo_aacenc_encoder_select="audio_frame_queue"

  2644. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2645. libvorbis_decoder_deps="libvorbis"

  2646. libvorbis_encoder_deps="libvorbis"

  2647. libvorbis_encoder_select="audio_frame_queue"

  2648. libvpx_vp8_decoder_deps="libvpx"

  2649. libvpx_vp8_encoder_deps="libvpx"

  2650. libvpx_vp9_decoder_deps="libvpx"

  2651. libvpx_vp9_encoder_deps="libvpx"

  2652. libwavpack_encoder_deps="libwavpack"

  2653. libwebp_encoder_deps="libwebp"

  2654. libwebp_anim_encoder_deps="libwebp"

  2655. libx262_encoder_deps="libx262"

  2656. libx264_encoder_deps="libx264"

  2657. libx264rgb_encoder_deps="libx264"

  2658. libx264rgb_encoder_select="libx264_encoder"

  2659. libx265_encoder_deps="libx265"

  2660. libxavs_encoder_deps="libxavs"

  2661. libxvid_encoder_deps="libxvid"

  2662. libutvideo_decoder_deps="libutvideo"

  2663. libutvideo_encoder_deps="libutvideo"

  2664. libzvbi_teletext_decoder_deps="libzvbi"

  2665. nvenc_encoder_deps="nvenc"

  2666. nvenc_h264_encoder_deps="nvenc"

  2667. nvenc_hevc_encoder_deps="nvenc"

  2668. 

  2669. # demuxers / muxers

  2670. ac3_demuxer_select="ac3_parser"

  2671. asf_demuxer_select="riffdec"

  2672. asf_o_demuxer_select="riffdec"

  2673. asf_muxer_select="riffenc"

  2674. asf_stream_muxer_select="asf_muxer"

  2675. avi_demuxer_select="riffdec exif"

  2676. avi_muxer_select="riffenc"

  2677. avisynth_demuxer_deps="avisynth"

  2678. avisynth_demuxer_select="riffdec"

  2679. caf_demuxer_select="riffdec"

  2680. dash_muxer_select="mp4_muxer"

  2681. dirac_demuxer_select="dirac_parser"

  2682. dts_demuxer_select="dca_parser"

  2683. dtshd_demuxer_select="dca_parser"

  2684. dv_demuxer_select="dvprofile"

  2685. dv_muxer_select="dvprofile"

  2686. dxa_demuxer_select="riffdec"

  2687. eac3_demuxer_select="ac3_parser"

  2688. f4v_muxer_select="mov_muxer"

  2689. flac_demuxer_select="flac_parser"

  2690. hds_muxer_select="flv_muxer"

  2691. hls_muxer_select="mpegts_muxer"

  2692. image2_alias_pix_demuxer_select="image2_demuxer"

  2693. image2_brender_pix_demuxer_select="image2_demuxer"

  2694. ipod_muxer_select="mov_muxer"

  2695. ismv_muxer_select="mov_muxer"

  2696. libnut_demuxer_deps="libnut"

  2697. libnut_muxer_deps="libnut"

  2698. matroska_audio_muxer_select="matroska_muxer"

  2699. matroska_demuxer_select="riffdec"

  2700. matroska_demuxer_suggest="bzlib lzo zlib"

  2701. matroska_muxer_select="riffenc"

  2702. mmf_muxer_select="riffenc"

  2703. mov_demuxer_select="riffdec"

  2704. mov_demuxer_suggest="zlib"

  2705. mov_muxer_select="riffenc rtpenc_chain"

  2706. mp3_demuxer_select="mpegaudio_parser"

  2707. mp4_muxer_select="mov_muxer"

  2708. mpegts_muxer_select="adts_muxer latm_muxer"

  2709. mpegtsraw_demuxer_select="mpegts_demuxer"

  2710. mxf_d10_muxer_select="mxf_muxer"

  2711. mxf_opatom_muxer_select="mxf_muxer"

  2712. nut_muxer_select="riffenc"

  2713. nuv_demuxer_select="riffdec"

  2714. oga_muxer_select="ogg_muxer"

  2715. ogg_demuxer_select="dirac_parse"

  2716. opus_muxer_select="ogg_muxer"

  2717. psp_muxer_select="mov_muxer"

  2718. rtp_demuxer_select="sdp_demuxer"

  2719. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"

  2720. rtsp_demuxer_select="http_protocol rtpdec"

  2721. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2722. sap_demuxer_select="sdp_demuxer"

  2723. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2724. sdp_demuxer_select="rtpdec"

  2725. smoothstreaming_muxer_select="ismv_muxer"

  2726. spdif_muxer_select="aac_parser"

  2727. spx_muxer_select="ogg_muxer"

  2728. tak_demuxer_select="tak_parser"

  2729. tg2_muxer_select="mov_muxer"

  2730. tgp_muxer_select="mov_muxer"

  2731. vobsub_demuxer_select="mpegps_demuxer"

  2732. w64_demuxer_select="wav_demuxer"

  2733. w64_muxer_select="wav_muxer"

  2734. wav_demuxer_select="riffdec"

  2735. wav_muxer_select="riffenc"

  2736. webm_muxer_select="riffenc"

  2737. wtv_demuxer_select="riffdec"

  2738. wtv_muxer_select="riffenc"

  2739. xmv_demuxer_select="riffdec"

  2740. xwma_demuxer_select="riffdec"

  2741. 

  2742. # indevs / outdevs

  2743. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2744. alsa_outdev_deps="alsa_asoundlib_h"

  2745. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2746. avfoundation_indev_select="avfoundation"

  2747. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2748. caca_outdev_deps="libcaca"

  2749. decklink_outdev_deps="decklink pthreads"

  2750. decklink_outdev_extralibs="-lstdc++"

  2751. decklink_indev_deps="decklink pthreads"

  2752. decklink_indev_extralibs="-lstdc++"

  2753. dshow_indev_deps="IBaseFilter"

  2754. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2755. dv1394_indev_deps="dv1394"

  2756. dv1394_indev_select="dv_demuxer"

  2757. fbdev_indev_deps="linux_fb_h"

  2758. fbdev_outdev_deps="linux_fb_h"

  2759. gdigrab_indev_deps="CreateDIBSection"

  2760. gdigrab_indev_extralibs="-lgdi32"

  2761. gdigrab_indev_select="bmp_decoder"

  2762. iec61883_indev_deps="libiec61883"

  2763. jack_indev_deps="jack_jack_h sem_timedwait"

  2764. lavfi_indev_deps="avfilter"

  2765. libcdio_indev_deps="libcdio"

  2766. libdc1394_indev_deps="libdc1394"

  2767. libv4l2_indev_deps="libv4l2"

  2768. openal_indev_deps="openal"

  2769. opengl_outdev_deps="opengl"

  2770. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2771. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2772. pulse_indev_deps="libpulse"

  2773. pulse_outdev_deps="libpulse"

  2774. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2775. qtkit_indev_select="qtkit"

  2776. sdl_outdev_deps="sdl"

  2777. sndio_indev_deps="sndio_h"

  2778. sndio_outdev_deps="sndio_h"

  2779. v4l_indev_deps="linux_videodev_h"

  2780. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2781. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2782. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2783. vfwcap_indev_extralibs="-lavicap32"

  2784. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2785. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2786. x11grab_indev_deps="x11grab"

  2787. x11grab_xcb_indev_deps="libxcb"

  2788. 

  2789. # protocols

  2790. async_protocol_deps="threads"

  2791. bluray_protocol_deps="libbluray"

  2792. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2793. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2794. ffrtmpcrypt_protocol_select="tcp_protocol"

  2795. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2796. ffrtmphttp_protocol_select="http_protocol"

  2797. ftp_protocol_select="tcp_protocol"

  2798. gopher_protocol_select="network"

  2799. http_protocol_select="tcp_protocol"

  2800. httpproxy_protocol_select="tcp_protocol"

  2801. https_protocol_select="tls_protocol"

  2802. icecast_protocol_select="http_protocol"

  2803. librtmp_protocol_deps="librtmp"

  2804. librtmpe_protocol_deps="librtmp"

  2805. librtmps_protocol_deps="librtmp"

  2806. librtmpt_protocol_deps="librtmp"

  2807. librtmpte_protocol_deps="librtmp"

  2808. libsmbclient_protocol_deps="libsmbclient gplv3"

  2809. libssh_protocol_deps="libssh"

  2810. mmsh_protocol_select="http_protocol"

  2811. mmst_protocol_select="network"

  2812. rtmp_protocol_deps="!librtmp_protocol"

  2813. rtmp_protocol_select="tcp_protocol"

  2814. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2815. rtmps_protocol_deps="!librtmp_protocol"

  2816. rtmps_protocol_select="tls_protocol"

  2817. rtmpt_protocol_select="ffrtmphttp_protocol"

  2818. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2819. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2820. rtp_protocol_select="udp_protocol"

  2821. sctp_protocol_deps="struct_sctp_event_subscribe"

  2822. sctp_protocol_select="network"

  2823. srtp_protocol_select="rtp_protocol"

  2824. tcp_protocol_select="network"

  2825. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  2826. tls_gnutls_protocol_select="tcp_protocol"

  2827. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  2828. tls_openssl_protocol_select="tcp_protocol"

  2829. tls_schannel_protocol_deps="schannel"

  2830. tls_schannel_protocol_select="tcp_protocol"

  2831. tls_securetransport_protocol_deps="securetransport"

  2832. tls_securetransport_protocol_select="tcp_protocol"

  2833. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  2834. udp_protocol_select="network"

  2835. udplite_protocol_select="network"

  2836. unix_protocol_deps="sys_un_h"

  2837. unix_protocol_select="network"

  2838. 

  2839. # filters

  2840. amovie_filter_deps="avcodec avformat"

  2841. aresample_filter_deps="swresample"

  2842. ass_filter_deps="libass"

  2843. asyncts_filter_deps="avresample"

  2844. atempo_filter_deps="avcodec"

  2845. atempo_filter_select="rdft"

  2846. azmq_filter_deps="libzmq"

  2847. blackframe_filter_deps="gpl"

  2848. boxblur_filter_deps="gpl"

  2849. bs2b_filter_deps="libbs2b"

  2850. colormatrix_filter_deps="gpl"

  2851. cover_rect_filter_deps="avcodec avformat gpl"

  2852. cropdetect_filter_deps="gpl"

  2853. delogo_filter_deps="gpl"

  2854. deshake_filter_select="pixelutils"

  2855. drawtext_filter_deps="libfreetype"

  2856. ebur128_filter_deps="gpl"

  2857. eq_filter_deps="gpl"

  2858. fftfilt_filter_deps="avcodec"

  2859. fftfilt_filter_select="rdft"

  2860. flite_filter_deps="libflite"

  2861. find_rect_filter_deps="avcodec avformat gpl"

  2862. frei0r_filter_deps="frei0r dlopen"

  2863. frei0r_src_filter_deps="frei0r dlopen"

  2864. fspp_filter_deps="gpl"

  2865. geq_filter_deps="gpl"

  2866. histeq_filter_deps="gpl"

  2867. hqdn3d_filter_deps="gpl"

  2868. interlace_filter_deps="gpl"

  2869. kerndeint_filter_deps="gpl"

  2870. ladspa_filter_deps="ladspa dlopen"

  2871. mcdeint_filter_deps="avcodec gpl"

  2872. movie_filter_deps="avcodec avformat"

  2873. mpdecimate_filter_deps="gpl"

  2874. mpdecimate_filter_select="pixelutils"

  2875. mptestsrc_filter_deps="gpl"

  2876. negate_filter_deps="lut_filter"

  2877. perspective_filter_deps="gpl"

  2878. pp7_filter_deps="gpl"

  2879. ocr_filter_deps="libtesseract"

  2880. ocv_filter_deps="libopencv"

  2881. owdenoise_filter_deps="gpl"

  2882. pan_filter_deps="swresample"

  2883. phase_filter_deps="gpl"

  2884. pp_filter_deps="gpl postproc"

  2885. pullup_filter_deps="gpl"

  2886. removelogo_filter_deps="avcodec avformat swscale"

  2887. repeatfields_filter_deps="gpl"

  2888. resample_filter_deps="avresample"

  2889. rubberband_filter_deps="librubberband"

  2890. sab_filter_deps="gpl swscale"

  2891. scale_filter_deps="swscale"

  2892. scale2ref_filter_deps="swscale"

  2893. select_filter_select="pixelutils"

  2894. smartblur_filter_deps="gpl swscale"

  2895. showcqt_filter_deps="avcodec avformat swscale"

  2896. showcqt_filter_select="fft"

  2897. showfreqs_filter_deps="avcodec"

  2898. showfreqs_filter_select="fft"

  2899. showspectrum_filter_deps="avcodec"

  2900. showspectrum_filter_select="rdft"

  2901. sofalizer_filter_deps="netcdf avcodec"

  2902. sofalizer_filter_select="fft"

  2903. spp_filter_deps="gpl avcodec"

  2904. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  2905. stereo3d_filter_deps="gpl"

  2906. subtitles_filter_deps="avformat avcodec libass"

  2907. super2xsai_filter_deps="gpl"

  2908. tinterlace_filter_deps="gpl"

  2909. vidstabdetect_filter_deps="libvidstab"

  2910. vidstabtransform_filter_deps="libvidstab"

  2911. pixfmts_super2xsai_test_deps="super2xsai_filter"

  2912. tinterlace_merge_test_deps="tinterlace_filter"

  2913. tinterlace_pad_test_deps="tinterlace_filter"

  2914. uspp_filter_deps="gpl avcodec"

  2915. zmq_filter_deps="libzmq"

  2916. zoompan_filter_deps="swscale"

  2917. zscale_filter_deps="libzimg"

  2918. 

  2919. # examples

  2920. avio_reading="avformat avcodec avutil"

  2921. avio_dir_cmd="avformat avutil"

  2922. avcodec_example_deps="avcodec avutil"

  2923. decoding_encoding_example_deps="avcodec avformat avutil"

  2924. demuxing_decoding_example_deps="avcodec avformat avutil"

  2925. extract_mvs_example_deps="avcodec avformat avutil"

  2926. filter_audio_example_deps="avfilter avutil"

  2927. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  2928. filtering_video_example_deps="avfilter avcodec avformat avutil"

  2929. metadata_example_deps="avformat avutil"

  2930. muxing_example_deps="avcodec avformat avutil swscale"

  2931. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  2932. remuxing_example_deps="avcodec avformat avutil"

  2933. resampling_audio_example_deps="avutil swresample"

  2934. scaling_video_example_deps="avutil swscale"

  2935. transcode_aac_example_deps="avcodec avformat swresample"

  2936. transcoding_example_deps="avfilter avcodec avformat avutil"

  2937. 

  2938. # libraries, in linking order

  2939. avcodec_deps="avutil"

  2940. avdevice_deps="avformat avcodec avutil"

  2941. avfilter_deps="avutil"

  2942. avformat_deps="avcodec avutil"

  2943. avresample_deps="avutil"

  2944. postproc_deps="avutil gpl"

  2945. swresample_deps="avutil"

  2946. swscale_deps="avutil"

  2947. 

  2948. # programs

  2949. ffmpeg_deps="avcodec avfilter avformat swresample"

  2950. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  2951.                null_filter

  2952.                setpts_filter trim_filter"

  2953. ffplay_deps="avcodec avformat swscale swresample sdl"

  2954. ffplay_libs='$sdl_libs'

  2955. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  2956. ffprobe_deps="avcodec avformat"

  2957. ffserver_deps="avformat fork sarestart"

  2958. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  2959. 

  2960. # documentation

  2961. podpages_deps="perl"

  2962. manpages_deps="perl pod2man"

  2963. htmlpages_deps="perl"

  2964. htmlpages_deps_any="makeinfo_html texi2html"

  2965. txtpages_deps="perl makeinfo"

  2966. doc_deps_any="manpages htmlpages podpages txtpages"

  2967. 

  2968. # default parameters

  2969. 

  2970. logfile="config.log"

  2971. 

  2972. # installation paths

  2973. prefix_default="/usr/local"

  2974. bindir_default='${prefix}/bin'

  2975. datadir_default='${prefix}/share/ffmpeg'

  2976. docdir_default='${prefix}/share/doc/ffmpeg'

  2977. incdir_default='${prefix}/include'

  2978. libdir_default='${prefix}/lib'

  2979. mandir_default='${prefix}/share/man'

  2980. 

  2981. # toolchain

  2982. ar_default="ar"

  2983. cc_default="gcc"

  2984. cxx_default="g++"

  2985. host_cc_default="gcc"

  2986. cp_f="cp -f"

  2987. doxygen_default="doxygen"

  2988. install="install"

  2989. ln_s="ln -s -f"

  2990. nm_default="nm -g"

  2991. objformat="elf"

  2992. pkg_config_default=pkg-config

  2993. ranlib_default="ranlib"

  2994. strip_default="strip"

  2995. yasmexe_default="yasm"

  2996. windres_default="windres"

  2997. 

  2998. # OS

  2999. target_os_default=$(tolower $(uname -s))

  3000. host_os=$target_os_default

  3001. 

  3002. # machine

  3003. if test "$target_os_default" = aix; then

  3004.     arch_default=$(uname -p)

  3005.     strip_default="strip -X32_64"

  3006. else

  3007.     arch_default=$(uname -m)

  3008. fi

  3009. cpu="generic"

  3010. intrinsics="none"

  3011. 

  3012. # configurable options

  3013. enable $PROGRAM_LIST

  3014. enable $DOCUMENT_LIST

  3015. enable $EXAMPLE_LIST

  3016. enable $(filter_out avresample $LIBRARY_LIST)

  3017. enable stripping

  3018. 

  3019. enable asm

  3020. enable debug

  3021. enable doc

  3022. enable faan faandct faanidct

  3023. enable optimizations

  3024. enable runtime_cpudetect

  3025. enable safe_bitstream_reader

  3026. enable static

  3027. enable swscale_alpha

  3028. enable valgrind_backtrace

  3029. 

  3030. sws_max_filter_size_default=256

  3031. set_default sws_max_filter_size

  3032. 

  3033. # Enable hwaccels by default.

  3034. enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc

  3035. enable xlib

  3036. 

  3037. # build settings

  3038. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3039. LIBPREF="lib"

  3040. LIBSUF=".a"

  3041. FULLNAME='$(NAME)$(BUILDSUF)'

  3042. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3043. SLIBPREF="lib"

  3044. SLIBSUF=".so"

  3045. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3046. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3047. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3048. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3049. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3050. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3051. 

  3052. asflags_filter=echo

  3053. cflags_filter=echo

  3054. ldflags_filter=echo

  3055. 

  3056. AS_C='-c'

  3057. AS_O='-o $@'

  3058. CC_C='-c'

  3059. CC_E='-E -o $@'

  3060. CC_O='-o $@'

  3061. CXX_C='-c'

  3062. CXX_O='-o $@'

  3063. OBJCC_C='-c'

  3064. OBJCC_E='-E -o $@'

  3065. OBJCC_O='-o $@'

  3066. LD_O='-o $@'

  3067. LD_LIB='-l%'

  3068. LD_PATH='-L'

  3069. HOSTCC_C='-c'

  3070. HOSTCC_E='-E -o $@'

  3071. HOSTCC_O='-o $@'

  3072. HOSTLD_O='-o $@'

  3073. 

  3074. host_libs='-lm'

  3075. host_cflags_filter=echo

  3076. host_ldflags_filter=echo

  3077. 

  3078. target_path='$(CURDIR)'

  3079. 

  3080. # since the object filename is not given with the -MM flag, the compiler

  3081. # is only able to print the basename, and we must add the path ourselves

  3082. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3083. DEPFLAGS='-MM'

  3084. 

  3085. # find source path

  3086. if test -f configure; then

  3087.     source_path=.

  3088. else

  3089.     source_path=$(cd $(dirname "$0"); pwd)

  3090.     case "$source_path" in

  3091.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3092.     esac

  3093.     test -e "$source_path/config.h" &&

  3094.         die "Out of tree builds are impossible with config.h in source dir."

  3095. fi

  3096. 

  3097. for v in "$@"; do

  3098.     r=${v#*=}

  3099.     l=${v%"$r"}

  3100.     r=$(sh_quote "$r")

  3101.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3102. done

  3103. 

  3104. find_things(){

  3105.     thing=$1

  3106.     pattern=$2

  3107.     file=$source_path/$3

  3108.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3109. }

  3110. 

  3111. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3112. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3113. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3114. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3115. BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)

  3116. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3117. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3118. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3119. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3120. PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)

  3121. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3122. 

  3123. ALL_COMPONENTS="

  3124.     $BSF_LIST

  3125.     $DECODER_LIST

  3126.     $DEMUXER_LIST

  3127.     $ENCODER_LIST

  3128.     $FILTER_LIST

  3129.     $HWACCEL_LIST

  3130.     $INDEV_LIST

  3131.     $MUXER_LIST

  3132.     $OUTDEV_LIST

  3133.     $PARSER_LIST

  3134.     $PROTOCOL_LIST

  3135. "

  3136. 

  3137. for n in $COMPONENT_LIST; do

  3138.     v=$(toupper ${n%s})_LIST

  3139.     eval enable \$$v

  3140.     eval ${n}_if_any="\$$v"

  3141. done

  3142. 

  3143. enable $ARCH_EXT_LIST

  3144. 

  3145. die_unknown(){

  3146.     echo "Unknown option \"$1\"."

  3147.     echo "See $0 --help for available options."

  3148.     exit 1

  3149. }

  3150. 

  3151. print_in_columns() {

  3152.     cols=$(expr $ncols / 24)

  3153.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3154. }

  3155. 

  3156. show_list() {

  3157.     suffix=_$1

  3158.     shift

  3159.     echo $* | sed s/$suffix//g | print_in_columns

  3160.     exit 0

  3161. }

  3162. 

  3163. rand_list(){

  3164.     IFS=', '

  3165.     set -- $*

  3166.     unset IFS

  3167.     for thing; do

  3168.         comp=${thing%:*}

  3169.         prob=${thing#$comp}

  3170.         prob=${prob#:}

  3171.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3172.         echo "prob ${prob:-0.5}"

  3173.         printf '%s\n' $comp

  3174.     done

  3175. }

  3176. 

  3177. do_random(){

  3178.     action=$1

  3179.     shift

  3180.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3181.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3182. }

  3183. 

  3184. for opt do

  3185.     optval="${opt#*=}"

  3186.     case "$opt" in

  3187.         --extra-ldflags=*)

  3188.             add_ldflags $optval

  3189.         ;;

  3190.         --extra-ldexeflags=*)

  3191.             add_ldexeflags $optval

  3192.         ;;

  3193.         --extra-ldlibflags=*)

  3194.             add_ldlibflags $optval

  3195.         ;;

  3196.         --extra-libs=*)

  3197.             add_extralibs $optval

  3198.         ;;

  3199.         --disable-devices)

  3200.             disable $INDEV_LIST $OUTDEV_LIST

  3201.         ;;

  3202.         --enable-debug=*)

  3203.             debuglevel="$optval"

  3204.         ;;

  3205.         --disable-programs)

  3206.             disable $PROGRAM_LIST

  3207.         ;;

  3208.         --disable-everything)

  3209.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3210.         ;;

  3211.         --disable-all)

  3212.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3213.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3214.             enable avutil

  3215.         ;;

  3216.         --enable-random|--disable-random)

  3217.             action=${opt%%-random}

  3218.             do_random ${action#--} $COMPONENT_LIST

  3219.         ;;

  3220.         --enable-random=*|--disable-random=*)

  3221.             action=${opt%%-random=*}

  3222.             do_random ${action#--} $optval

  3223.         ;;

  3224.         --enable-*=*|--disable-*=*)

  3225.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3226.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3227.             eval list=\$$(toupper $thing)_LIST

  3228.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3229.             list=$(filter "$name" $list)

  3230.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3231.             $action $list

  3232.         ;;

  3233.         --enable-?*|--disable-?*)

  3234.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3235.             if is_in $option $COMPONENT_LIST; then

  3236.                 test $action = disable && action=unset

  3237.                 eval $action \$$(toupper ${option%s})_LIST

  3238.             elif is_in $option $CMDLINE_SELECT; then

  3239.                 $action $option

  3240.             else

  3241.                 die_unknown $opt

  3242.             fi

  3243.         ;;

  3244.         --list-*)

  3245.             NAME="${opt#--list-}"

  3246.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3247.             NAME=${NAME%s}

  3248.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3249.         ;;

  3250.         --help|-h) show_help

  3251.         ;;

  3252.         --fatal-warnings) enable fatal_warnings

  3253.         ;;

  3254.         *)

  3255.             optname="${opt%%=*}"

  3256.             optname="${optname#--}"

  3257.             optname=$(echo "$optname" | sed 's/-/_/g')

  3258.             if is_in $optname $CMDLINE_SET; then

  3259.                 eval $optname='$optval'

  3260.             elif is_in $optname $CMDLINE_APPEND; then

  3261.                 append $optname "$optval"

  3262.             else

  3263.                 die_unknown $opt

  3264.             fi

  3265.         ;;

  3266.     esac

  3267. done

  3268. 

  3269. for e in $env; do

  3270.     eval "export $e"

  3271. done

  3272. 

  3273. disabled logging && logfile=/dev/null

  3274. 

  3275. # Disable all the library-specific components if the library itself

  3276. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3277. 

  3278. disable_components(){

  3279.     disabled ${1} && disable $(

  3280.         eval components="\$$(toupper ${1})_COMPONENTS"

  3281.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3282.     )

  3283. }

  3284. 

  3285. map 'disable_components $v' $LIBRARY_LIST

  3286. 

  3287. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3288. set >> $logfile

  3289. 

  3290. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3291. 

  3292. case "$toolchain" in

  3293.     clang-asan)

  3294.         cc_default="clang"

  3295.         add_cflags  -fsanitize=address

  3296.         add_ldflags -fsanitize=address

  3297.     ;;

  3298.     clang-tsan)

  3299.         cc_default="clang"

  3300.         add_cflags  -fsanitize=thread -pie

  3301.         add_ldflags -fsanitize=thread -pie

  3302.     ;;

  3303.     clang-usan)

  3304.         cc_default="clang"

  3305.         add_cflags  -fsanitize=undefined

  3306.         add_ldflags -fsanitize=undefined

  3307.     ;;

  3308.     gcc-asan)

  3309.         cc_default="gcc"

  3310.         add_cflags  -fsanitize=address

  3311.         add_ldflags -fsanitize=address

  3312.     ;;

  3313.     gcc-tsan)

  3314.         cc_default="gcc"

  3315.         add_cflags  -fsanitize=thread -pie -fPIC

  3316.         add_ldflags -fsanitize=thread -pie -fPIC

  3317.     ;;

  3318.     gcc-usan)

  3319.         cc_default="gcc"

  3320.         add_cflags  -fsanitize=undefined

  3321.         add_ldflags -fsanitize=undefined

  3322.     ;;

  3323.     valgrind-massif)

  3324.         target_exec_default=${valgrind:-"valgrind"}

  3325.         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"

  3326.     ;;

  3327.     valgrind-memcheck)

  3328.         target_exec_default=${valgrind:-"valgrind"}

  3329.         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"

  3330.     ;;

  3331.     msvc)

  3332.         # Check whether the current MSVC version needs the C99 converter.

  3333.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3334.         # support enough of C99 to build ffmpeg. Default to the new

  3335.         # behaviour if the regexp was unable to match anything, since this

  3336.         # successfully parses the version number of existing supported

  3337.         # versions that require the converter (MSVC 2010 and 2012).

  3338.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3339.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3340.             cc_default="cl"

  3341.         else

  3342.             cc_default="c99wrap cl"

  3343.         fi

  3344.         ld_default="$source_path/compat/windows/mslink"

  3345.         nm_default="dumpbin -symbols"

  3346.         ar_default="lib"

  3347.         case "$arch" in

  3348.         arm*)

  3349.             as_default="armasm"

  3350.             ;;

  3351.         esac

  3352.         target_os_default="win32"

  3353.         # Use a relative path for TMPDIR. This makes sure all the

  3354.         # ffconf temp files are written with a relative path, avoiding

  3355.         # issues with msys/win32 path conversion for MSVC parameters

  3356.         # such as -Fo<file> or -out:<file>.

  3357.         TMPDIR=.

  3358.     ;;

  3359.     icl)

  3360.         cc_default="icl"

  3361.         ld_default="xilink"

  3362.         nm_default="dumpbin -symbols"

  3363.         ar_default="xilib"

  3364.         target_os_default="win32"

  3365.         TMPDIR=.

  3366.     ;;

  3367.     gcov)

  3368.         add_cflags  -fprofile-arcs -ftest-coverage

  3369.         add_ldflags -fprofile-arcs -ftest-coverage

  3370.     ;;

  3371.     hardened)

  3372.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3373.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3374.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3375.     ;;

  3376.     ?*)

  3377.         die "Unknown toolchain $toolchain"

  3378.     ;;

  3379. esac

  3380. 

  3381. test -n "$cross_prefix" && enable cross_compile

  3382. 

  3383. if enabled cross_compile; then

  3384.     test -n "$arch" && test -n "$target_os" ||

  3385.         die "Must specify target arch and OS when cross-compiling"

  3386. fi

  3387. 

  3388. ar_default="${cross_prefix}${ar_default}"

  3389. cc_default="${cross_prefix}${cc_default}"

  3390. cxx_default="${cross_prefix}${cxx_default}"

  3391. nm_default="${cross_prefix}${nm_default}"

  3392. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3393. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3394.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3395. else

  3396.     ranlib_default="${cross_prefix}${ranlib_default}"

  3397. fi

  3398. strip_default="${cross_prefix}${strip_default}"

  3399. windres_default="${cross_prefix}${windres_default}"

  3400. 

  3401. sysinclude_default="${sysroot}/usr/include"

  3402. 

  3403. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3404.     target_exec target_os yasmexe

  3405. enabled cross_compile || host_cc_default=$cc

  3406. set_default host_cc

  3407. 

  3408. pkg_config_fail_message=""

  3409. if ! $pkg_config --version >/dev/null 2>&1; then

  3410.     warn "$pkg_config not found, library detection may fail."

  3411.     pkg_config=false

  3412. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3413.     pkg_config_fail_message="

  3414. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3415. fi

  3416. 

  3417. if test $doxygen != $doxygen_default && \

  3418.   ! $doxygen --version >/dev/null 2>&1; then

  3419.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3420. fi

  3421. 

  3422. exesuf() {

  3423.     case $1 in

  3424.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3425.     esac

  3426. }

  3427. 

  3428. EXESUF=$(exesuf $target_os)

  3429. HOSTEXESUF=$(exesuf $host_os)

  3430. 

  3431. # set temporary file name

  3432. : ${TMPDIR:=$TEMPDIR}

  3433. : ${TMPDIR:=$TMP}

  3434. : ${TMPDIR:=/tmp}

  3435. 

  3436. if [ -n "$tempprefix" ] ; then

  3437.     mktemp(){

  3438.         echo $tempprefix.${HOSTNAME}.${UID}

  3439.     }

  3440. elif ! check_cmd mktemp -u XXXXXX; then

  3441.     # simple replacement for missing mktemp

  3442.     # NOT SAFE FOR GENERAL USE

  3443.     mktemp(){

  3444.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3445.     }

  3446. fi

  3447. 

  3448. tmpfile(){

  3449.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3450.         (set -C; exec > $tmp) 2>/dev/null ||

  3451.         die "Unable to create temporary file in $TMPDIR."

  3452.     append TMPFILES $tmp

  3453.     eval $1=$tmp

  3454. }

  3455. 

  3456. trap 'rm -f -- $TMPFILES' EXIT

  3457. 

  3458. tmpfile TMPASM .asm

  3459. tmpfile TMPC   .c

  3460. tmpfile TMPCPP .cpp

  3461. tmpfile TMPE   $EXESUF

  3462. tmpfile TMPH   .h

  3463. tmpfile TMPM   .m

  3464. tmpfile TMPO   .o

  3465. tmpfile TMPS   .S

  3466. tmpfile TMPSH  .sh

  3467. tmpfile TMPV   .ver

  3468. 

  3469. unset -f mktemp

  3470. 

  3471. chmod +x $TMPE

  3472. 

  3473. # make sure we can execute files in $TMPDIR

  3474. cat > $TMPSH 2>> $logfile <<EOF

  3475. #! /bin/sh

  3476. EOF

  3477. chmod +x $TMPSH >> $logfile 2>&1

  3478. if ! $TMPSH >> $logfile 2>&1; then

  3479.     cat <<EOF

  3480. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3481. variable to another directory and make sure that it is not mounted noexec.

  3482. EOF

  3483.     die "Sanity test failed."

  3484. fi

  3485. 

  3486. armasm_flags(){

  3487.     for flag; do

  3488.         case $flag in

  3489.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3490.             # be passed to gas-preprocessor

  3491.             -M[TD]*)                                            ;;

  3492.             *)                  echo $flag                      ;;

  3493.         esac

  3494.    done

  3495. }

  3496. 

  3497. ccc_flags(){

  3498.     for flag; do

  3499.         case $flag in

  3500.             -std=c99)           echo -c99                       ;;

  3501.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3502.             -mieee)             echo -ieee                      ;;

  3503.             -O*|-fast)          echo $flag                      ;;

  3504.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3505.             -g)                 echo -g3                        ;;

  3506.             -Wall)              echo -msg_enable level2         ;;

  3507.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3508.             -Wl,*)              echo $flag                      ;;

  3509.             -f*|-W*)                                            ;;

  3510.             *)                  echo $flag                      ;;

  3511.         esac

  3512.    done

  3513. }

  3514. 

  3515. cparser_flags(){

  3516.     for flag; do

  3517.         case $flag in

  3518.             -Wno-switch)             echo -Wno-switch-enum ;;

  3519.             -Wno-format-zero-length) ;;

  3520.             -Wdisabled-optimization) ;;

  3521.             -Wno-pointer-sign)       echo -Wno-other ;;

  3522.             *)                       echo $flag ;;

  3523.         esac

  3524.     done

  3525. }

  3526. 

  3527. msvc_common_flags(){

  3528.     for flag; do

  3529.         case $flag in

  3530.             # In addition to specifying certain flags under the compiler

  3531.             # specific filters, they must be specified here as well or else the

  3532.             # generic catch all at the bottom will print the original flag.

  3533.             -Wall)                ;;

  3534.             -std=c99)             ;;

  3535.             # Common flags

  3536.             -fomit-frame-pointer) ;;

  3537.             -g)                   echo -Z7 ;;

  3538.             -fno-math-errno)      ;;

  3539.             -fno-common)          ;;

  3540.             -fno-signed-zeros)    ;;

  3541.             -fPIC)                ;;

  3542.             -mthumb)              ;;

  3543.             -march=*)             ;;

  3544.             -lz)                  echo zlib.lib ;;

  3545.             -lavifil32)           echo vfw32.lib ;;

  3546.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3547.             -l*)                  echo ${flag#-l}.lib ;;

  3548.             -LARGEADDRESSAWARE)   echo $flag ;;

  3549.             -L*)                  echo -libpath:${flag#-L} ;;

  3550.             *)                    echo $flag ;;

  3551.         esac

  3552.     done

  3553. }

  3554. 

  3555. msvc_flags(){

  3556.     msvc_common_flags "$@"

  3557.     for flag; do

  3558.         case $flag in

  3559.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3560.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3561.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3562.                                        -wd4307 \

  3563.                                        -wd4273 -wd4554 -wd4701 ;;

  3564.         esac

  3565.     done

  3566. }

  3567. 

  3568. icl_flags(){

  3569.     msvc_common_flags "$@"

  3570.     for flag; do

  3571.         case $flag in

  3572.             # Despite what Intel's documentation says -Wall, which is supported

  3573.             # on Windows, does enable remarks so disable them here.

  3574.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3575.             -std=c99)             echo -Qstd=c99 ;;

  3576.             -flto)                echo -ipo ;;

  3577.         esac

  3578.     done

  3579. }

  3580. 

  3581. icc_flags(){

  3582.     for flag; do

  3583.         case $flag in

  3584.             -flto)                echo -ipo ;;

  3585.             *)                    echo $flag ;;

  3586.         esac

  3587.     done

  3588. }

  3589. 

  3590. pgi_flags(){

  3591.     for flag; do

  3592.         case $flag in

  3593.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3594.             -fomit-frame-pointer) echo -Mnoframe ;;

  3595.             -g)                   echo -gopt ;;

  3596.             *)                    echo $flag ;;

  3597.         esac

  3598.     done

  3599. }

  3600. 

  3601. suncc_flags(){

  3602.     for flag; do

  3603.         case $flag in

  3604.             -march=*|-mcpu=*)

  3605.                 case "${flag#*=}" in

  3606.                     native)                   echo -xtarget=native       ;;

  3607.                     v9|niagara)               echo -xarch=sparc          ;;

  3608.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3609.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3610.                     i586|pentium)             echo -xchip=pentium        ;;

  3611.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3612.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3613.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3614.                     pentium4*)          echo -xtarget=pentium4           ;;

  3615.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3616.                     *-sse3)             echo -xarch=sse3                 ;;

  3617.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3618.                     bonnell)                   echo -xarch=ssse3         ;;

  3619.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3620.                     westmere)                  echo -xtarget=westmere    ;;

  3621.                     silvermont)                echo -xarch=sse4_2        ;;

  3622.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3623.                     core-avx*|ivybridge|haswell|broadwell)

  3624.                                                echo -xarch=avx           ;;

  3625.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3626.                     btver1)                    echo -xarch=amdsse4a      ;;

  3627.                     btver2|bdver*)             echo -xarch=avx           ;;

  3628.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3629.                     k8|opteron|athlon64|athlon-fx)

  3630.                                                echo -xarch=sse2a         ;;

  3631.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3632.                 esac

  3633.                 ;;

  3634.             -std=c99)             echo -xc99              ;;

  3635.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3636.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3637.             -W*,*)                echo $flag              ;;

  3638.             -f*-*|-W*|-mimpure-text)                      ;;

  3639.             -shared)              echo -G                 ;;

  3640.             *)                    echo $flag              ;;

  3641.         esac

  3642.     done

  3643. }

  3644. 

  3645. tms470_flags(){

  3646.     for flag; do

  3647.         case $flag in

  3648.             -march=*|-mcpu=*)

  3649.                 case "${flag#*=}" in

  3650.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3651.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3652.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3653.                     armv6*|arm11*)          echo -mv=6   ;;

  3654.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3655.                                             echo -mv=5e  ;;

  3656.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3657.                 esac

  3658.                 ;;

  3659.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3660.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3661.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3662.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3663.             -msoft-float)   echo --float_support=vfplib       ;;

  3664.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3665.             -g)             echo -g -mn                       ;;

  3666.             -pds=*)         echo $flag                        ;;

  3667.             -D*|-I*)        echo $flag                        ;;

  3668.             --gcc|--abi=*)  echo $flag                        ;;

  3669.             -me)            echo $flag                        ;;

  3670.         esac

  3671.     done

  3672. }

  3673. 

  3674. probe_cc(){

  3675.     pfx=$1

  3676.     _cc=$2

  3677.     first=$3

  3678. 

  3679.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3680.     unset _ld_o _ldflags _ld_lib _ld_path

  3681.     unset _depflags _DEPCMD _DEPFLAGS

  3682.     _flags_filter=echo

  3683. 

  3684.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3685.         true # no-op to avoid reading stdin in following checks

  3686.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3687.         _type=llvm_gcc

  3688.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3689.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3690.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3691.         _cflags_speed='-O3'

  3692.         _cflags_size='-Os'

  3693.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3694.         _type=gcc

  3695.         gcc_version=$($_cc --version | head -n1)

  3696.         gcc_basever=$($_cc -dumpversion)

  3697.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3698.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3699.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3700.         case $gcc_basever in

  3701.             2) ;;

  3702.             2.*) ;;

  3703.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3704.         esac

  3705.         if [ "$first" = true ]; then

  3706.             case $gcc_basever in

  3707.                 4.2*)

  3708.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3709.             esac

  3710.         fi

  3711.         _cflags_speed='-O3'

  3712.         _cflags_size='-Os'

  3713.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3714.         _type=icc

  3715.         _ident=$($_cc --version | head -n1)

  3716.         _depflags='-MMD'

  3717.         _cflags_speed='-O3'

  3718.         _cflags_size='-Os'

  3719.         _cflags_noopt='-O1'

  3720.         _flags_filter=icc_flags

  3721.     elif $_cc -v 2>&1 | grep -q xlc; then

  3722.         _type=xlc

  3723.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3724.         _cflags_speed='-O5'

  3725.         _cflags_size='-O5 -qcompact'

  3726.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3727.         _type=ccc

  3728.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3729.         _DEPFLAGS='-M'

  3730.         _cflags_speed='-fast'

  3731.         _cflags_size='-O1'

  3732.         _flags_filter=ccc_flags

  3733.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3734.         test -d "$sysroot" || die "No valid sysroot specified."

  3735.         _type=armcc

  3736.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3737.         armcc_conf="$PWD/armcc.conf"

  3738.         $_cc --arm_linux_configure                 \

  3739.              --arm_linux_config_file="$armcc_conf" \

  3740.              --configure_sysroot="$sysroot"        \

  3741.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3742.              die "Error creating armcc configuration file."

  3743.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3744.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3745.         as_default="${cross_prefix}gcc"

  3746.         _depflags='-MMD'

  3747.         _cflags_speed='-O3'

  3748.         _cflags_size='-Os'

  3749.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3750.         _type=tms470

  3751.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3752.         _flags='--gcc --abi=eabi -me'

  3753.         _cc_e='-ppl -fe=$@'

  3754.         _cc_o='-fe=$@'

  3755.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3756.         _cflags_speed='-O3 -mf=5'

  3757.         _cflags_size='-O3 -mf=2'

  3758.         _flags_filter=tms470_flags

  3759.     elif $_cc -v 2>&1 | grep -q clang; then

  3760.         _type=clang

  3761.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3762.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3763.         _cflags_speed='-O3'

  3764.         _cflags_size='-Os'

  3765.     elif $_cc -V 2>&1 | grep -q Sun; then

  3766.         _type=suncc

  3767.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3768.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3769.         _DEPFLAGS='-xM1 -xc99'

  3770.         _ldflags='-std=c99'

  3771.         _cflags_speed='-O5'

  3772.         _cflags_size='-O5 -xspace'

  3773.         _flags_filter=suncc_flags

  3774.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3775.         _type=pathscale

  3776.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3777.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3778.         _cflags_speed='-O2'

  3779.         _cflags_size='-Os'

  3780.         _flags_filter='filter_out -Wdisabled-optimization'

  3781.     elif $_cc -v 2>&1 | grep -q Open64; then

  3782.         _type=open64

  3783.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3784.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3785.         _cflags_speed='-O2'

  3786.         _cflags_size='-Os'

  3787.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3788.     elif $_cc -V 2>&1 | grep -q Portland; then

  3789.         _type=pgi

  3790.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3791.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  3792.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  3793.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  3794.         _cflags_noopt="-O"

  3795.         _flags_filter=pgi_flags

  3796.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  3797.         _type=armasm

  3798.         _ident=$($_cc | head -n1)

  3799.         # 4509: "This form of conditional instruction is deprecated"

  3800.         _flags="-nologo -ignore 4509"

  3801.         _flags_filter=armasm_flags

  3802.     elif $_cc 2>&1 | grep -q Intel; then

  3803.         _type=icl

  3804.         _ident=$($_cc 2>&1 | head -n1)

  3805.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  3806.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  3807.         # versions (tested) as well.

  3808.         _cflags_speed="-O2"

  3809.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  3810.         if $_cc 2>&1 | grep -q Linker; then

  3811.             _ld_o='-out:$@'

  3812.         else

  3813.             _ld_o='-Fe$@'

  3814.         fi

  3815.         _cc_o='-Fo$@'

  3816.         _cc_e='-P'

  3817.         _flags_filter=icl_flags

  3818.         _ld_lib='lib%.a'

  3819.         _ld_path='-libpath:'

  3820.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  3821.         _flags='-nologo -Qdiag-error:4044,10157'

  3822.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  3823.         # with MSVC which enables it by default.

  3824.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  3825.         disable stripping

  3826.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  3827.         _type=msvc

  3828.         _ident=$($_cc 2>&1 | head -n1)

  3829.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  3830.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  3831.         _cflags_speed="-O2"

  3832.         _cflags_size="-O1"

  3833.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  3834.             _ld_o='-out:$@'

  3835.         else

  3836.             _ld_o='-Fe$@'

  3837.         fi

  3838.         _cc_o='-Fo$@'

  3839.         _cc_e='-P -Fi$@'

  3840.         _flags_filter=msvc_flags

  3841.         _ld_lib='lib%.a'

  3842.         _ld_path='-libpath:'

  3843.         _flags='-nologo'

  3844.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'

  3845.         disable stripping

  3846.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  3847.         _type=cparser

  3848.         _ident=$($_cc --version | head -n1)

  3849.         _depflags='-MMD'

  3850.         _cflags_speed='-O4'

  3851.         _cflags_size='-O2'

  3852.         _flags_filter=cparser_flags

  3853.     fi

  3854. 

  3855.     eval ${pfx}_type=\$_type

  3856.     eval ${pfx}_ident=\$_ident

  3857. }

  3858. 

  3859. set_ccvars(){

  3860.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  3861.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  3862.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  3863. 

  3864.     if [ -n "$_depflags" ]; then

  3865.         eval ${1}_DEPFLAGS=\$_depflags

  3866.     else

  3867.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  3868.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  3869.         eval DEP${1}FLAGS=\$_flags

  3870.     fi

  3871. }

  3872. 

  3873. probe_cc cc "$cc" "true"

  3874. cflags_filter=$_flags_filter

  3875. cflags_speed=$_cflags_speed

  3876. cflags_size=$_cflags_size

  3877. cflags_noopt=$_cflags_noopt

  3878. add_cflags $_flags $_cflags

  3879. cc_ldflags=$_ldflags

  3880. set_ccvars CC

  3881. 

  3882. probe_cc hostcc "$host_cc"

  3883. host_cflags_filter=$_flags_filter

  3884. add_host_cflags  $_flags $_cflags

  3885. set_ccvars HOSTCC

  3886. 

  3887. test -n "$cc_type" && enable $cc_type ||

  3888.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  3889. 

  3890. : ${as_default:=$cc}

  3891. : ${objcc_default:=$cc}

  3892. : ${dep_cc_default:=$cc}

  3893. : ${ld_default:=$cc}

  3894. : ${host_ld_default:=$host_cc}

  3895. set_default ar as objcc dep_cc ld host_ld windres

  3896. 

  3897. probe_cc as "$as"

  3898. asflags_filter=$_flags_filter

  3899. add_asflags $_flags $_cflags

  3900. set_ccvars AS

  3901. 

  3902. probe_cc objcc "$objcc"

  3903. objcflags_filter=$_flags_filter

  3904. add_objcflags $_flags $_cflags

  3905. set_ccvars OBJC

  3906. 

  3907. probe_cc ld "$ld"

  3908. ldflags_filter=$_flags_filter

  3909. add_ldflags $_flags $_ldflags

  3910. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  3911. LD_O=${_ld_o-$LD_O}

  3912. LD_LIB=${_ld_lib-$LD_LIB}

  3913. LD_PATH=${_ld_path-$LD_PATH}

  3914. 

  3915. probe_cc hostld "$host_ld"

  3916. host_ldflags_filter=$_flags_filter

  3917. add_host_ldflags $_flags $_ldflags

  3918. HOSTLD_O=${_ld_o-$HOSTLD_O}

  3919. 

  3920. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  3921.     probe_cc depcc "$dep_cc"

  3922.     CCDEP=${_DEPCMD:-$DEPCMD}

  3923.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  3924.     DEPCCFLAGS=$_flags

  3925. fi

  3926. 

  3927. if $ar 2>&1 | grep -q Microsoft; then

  3928.     arflags="-nologo"

  3929.     ar_o='-out:$@'

  3930. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  3931.     arflags="rq"

  3932.     ar_o='$@'

  3933. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  3934.     arflags='-Xany -r -c'

  3935.     ar_o='$@'

  3936. elif $ar 2>&1 | grep -q "\[D\] "; then

  3937.     arflags="rcD"

  3938.     ar_o='$@'

  3939. else

  3940.     arflags="rc"

  3941.     ar_o='$@'

  3942. fi

  3943. 

  3944. add_cflags $extra_cflags

  3945. add_cxxflags $extra_cxxflags

  3946. add_objcflags $extra_objcflags

  3947. add_asflags $extra_cflags

  3948. 

  3949. if test -n "$sysroot"; then

  3950.     case "$cc_type" in

  3951.         gcc|llvm_gcc|clang)

  3952.             add_cppflags --sysroot="$sysroot"

  3953.             add_ldflags --sysroot="$sysroot"

  3954. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  3955.             add_cppflags -isysroot "$sysroot"

  3956.             add_ldflags -isysroot "$sysroot"

  3957.         ;;

  3958.         tms470)

  3959.             add_cppflags -I"$sysinclude"

  3960.             add_ldflags  --sysroot="$sysroot"

  3961.         ;;

  3962.     esac

  3963. fi

  3964. 

  3965. if test "$cpu" = host; then

  3966.     enabled cross_compile &&

  3967.         die "--cpu=host makes no sense when cross-compiling."

  3968. 

  3969.     case "$cc_type" in

  3970.         gcc|llvm_gcc)

  3971.             check_native(){

  3972.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  3973.                 sed -n "/cc1.*$1=/{

  3974.                             s/.*$1=\\([^ ]*\\).*/\\1/

  3975.                             p

  3976.                             q

  3977.                         }" $TMPE

  3978.             }

  3979.             cpu=$(check_native -march || check_native -mcpu)

  3980.         ;;

  3981.         clang)

  3982.             check_native(){

  3983.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  3984.                 sed -n "/cc1.*-target-cpu /{

  3985.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  3986.                             p

  3987.                             q

  3988.                         }" $TMPE

  3989.             }

  3990.             cpu=$(check_native -march)

  3991.         ;;

  3992.     esac

  3993. 

  3994.     test "${cpu:-host}" = host &&

  3995.         die "--cpu=host not supported with compiler $cc"

  3996. fi

  3997. 

  3998. # Deal with common $arch aliases

  3999. case "$arch" in

  4000.     aarch64|arm64)

  4001.         arch="aarch64"

  4002.     ;;

  4003.     arm*|iPad*|iPhone*)

  4004.         arch="arm"

  4005.     ;;

  4006.     mips*|IP*)

  4007.         arch="mips"

  4008.     ;;

  4009.     parisc*|hppa*)

  4010.         arch="parisc"

  4011.     ;;

  4012.     "Power Macintosh"|ppc*|powerpc*)

  4013.         arch="ppc"

  4014.     ;;

  4015.     s390|s390x)

  4016.         arch="s390"

  4017.     ;;

  4018.     sh4|sh)

  4019.         arch="sh4"

  4020.     ;;

  4021.     sun4u|sparc*)

  4022.         arch="sparc"

  4023.     ;;

  4024.     tilegx|tile-gx)

  4025.         arch="tilegx"

  4026.     ;;

  4027.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4028.         arch="x86"

  4029.     ;;

  4030. esac

  4031. 

  4032. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4033. enable $arch

  4034. 

  4035. # Add processor-specific flags

  4036. if enabled aarch64; then

  4037. 

  4038.     case $cpu in

  4039.         armv*)

  4040.             cpuflags="-march=$cpu"

  4041.         ;;

  4042.         *)

  4043.             cpuflags="-mcpu=$cpu"

  4044.         ;;

  4045.     esac

  4046. 

  4047. elif enabled alpha; then

  4048. 

  4049.     cpuflags="-mcpu=$cpu"

  4050. 

  4051. elif enabled arm; then

  4052. 

  4053.     check_arm_arch() {

  4054.         check_cpp_condition stddef.h \

  4055.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4056.             $cpuflags

  4057.     }

  4058. 

  4059.     probe_arm_arch() {

  4060.         if   check_arm_arch 4;        then echo armv4;

  4061.         elif check_arm_arch 4T;       then echo armv4t;

  4062.         elif check_arm_arch 5;        then echo armv5;

  4063.         elif check_arm_arch 5E;       then echo armv5e;

  4064.         elif check_arm_arch 5T;       then echo armv5t;

  4065.         elif check_arm_arch 5TE;      then echo armv5te;

  4066.         elif check_arm_arch 5TEJ;     then echo armv5te;

  4067.         elif check_arm_arch 6;        then echo armv6;

  4068.         elif check_arm_arch 6J;       then echo armv6j;

  4069.         elif check_arm_arch 6K;       then echo armv6k;

  4070.         elif check_arm_arch 6Z;       then echo armv6z;

  4071.         elif check_arm_arch 6ZK;      then echo armv6zk;

  4072.         elif check_arm_arch 6T2;      then echo armv6t2;

  4073.         elif check_arm_arch 7;        then echo armv7;

  4074.         elif check_arm_arch 7A  7_A;  then echo armv7-a;

  4075.         elif check_arm_arch 7S;       then echo armv7-a;

  4076.         elif check_arm_arch 7R  7_R;  then echo armv7-r;

  4077.         elif check_arm_arch 7M  7_M;  then echo armv7-m;

  4078.         elif check_arm_arch 7EM 7E_M; then echo armv7-m;

  4079.         elif check_arm_arch 8A  8_A;  then echo armv8-a;

  4080.         fi

  4081.     }

  4082. 

  4083.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4084. 

  4085.     case $cpu in

  4086.         armv*)

  4087.             cpuflags="-march=$cpu"

  4088.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4089.         ;;

  4090.         *)

  4091.             cpuflags="-mcpu=$cpu"

  4092.             case $cpu in

  4093.                 cortex-a*)                               subarch=armv7a  ;;

  4094.                 cortex-r*)                               subarch=armv7r  ;;

  4095.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4096.                 arm11*)                                  subarch=armv6   ;;

  4097.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4098.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4099.                 *)                             subarch=$(probe_arm_arch) ;;

  4100.             esac

  4101.         ;;

  4102.     esac

  4103. 

  4104.     case "$subarch" in

  4105.         armv5t*)    enable fast_clz                ;;

  4106.         armv[6-8]*)

  4107.             enable fast_clz

  4108.             disabled fast_unaligned || enable fast_unaligned

  4109.             ;;

  4110.     esac

  4111. 

  4112. elif enabled avr32; then

  4113. 

  4114.     case $cpu in

  4115.         ap7[02]0[0-2])

  4116.             subarch="avr32_ap"

  4117.             cpuflags="-mpart=$cpu"

  4118.         ;;

  4119.         ap)

  4120.             subarch="avr32_ap"

  4121.             cpuflags="-march=$cpu"

  4122.         ;;

  4123.         uc3[ab]*)

  4124.             subarch="avr32_uc"

  4125.             cpuflags="-mcpu=$cpu"

  4126.         ;;

  4127.         uc)

  4128.             subarch="avr32_uc"

  4129.             cpuflags="-march=$cpu"

  4130.         ;;

  4131.     esac

  4132. 

  4133. elif enabled bfin; then

  4134. 

  4135.     cpuflags="-mcpu=$cpu"

  4136. 

  4137. elif enabled mips; then

  4138. 

  4139.     cpuflags="-march=$cpu"

  4140. 

  4141.     case $cpu in

  4142.         24kc)

  4143.             disable mips32r6

  4144.             disable mips64r2

  4145.             disable mips64r6

  4146.             disable mipsfpu

  4147.             disable mipsdsp

  4148.             disable mipsdspr2

  4149.             disable msa

  4150.         ;;

  4151.         24kf*)

  4152.             disable mips32r6

  4153.             disable mips64r2

  4154.             disable mips64r6

  4155.             disable mipsdsp

  4156.             disable mipsdspr2

  4157.             disable msa

  4158.         ;;

  4159.         24kec|34kc|1004kc)

  4160.             disable mips32r6

  4161.             disable mips64r2

  4162.             disable mips64r6

  4163.             disable mipsfpu

  4164.             disable mipsdspr2

  4165.             disable msa

  4166.         ;;

  4167.         24kef*|34kf*|1004kf*)

  4168.             disable mips32r6

  4169.             disable mips64r2

  4170.             disable mips64r6

  4171.             disable mipsdspr2

  4172.             disable msa

  4173.         ;;

  4174.         74kc)

  4175.             disable mips32r6

  4176.             disable mips64r2

  4177.             disable mips64r6

  4178.             disable mipsfpu

  4179.             disable msa

  4180.         ;;

  4181.         74kf)

  4182.             disable mips32r6

  4183.             disable mips64r2

  4184.             disable mips64r6

  4185.             disable msa

  4186.         ;;

  4187.         p5600)

  4188.             disable mips32r6

  4189.             disable mips64r2

  4190.             disable mips64r6

  4191.             disable mipsdsp

  4192.             disable mipsdspr2

  4193.             check_cflags "-mtune=p5600" &&

  4194.             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&

  4195.             add_asflags "-mfp64"

  4196.         ;;

  4197.         i6400)

  4198.             disable mips32r2

  4199.             disable mips32r6

  4200.             disable mips64r2

  4201.             disable mipsdsp

  4202.             disable mipsdspr2

  4203.             check_cflags "-mtune=i6400 -mabi=64" &&

  4204.             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&

  4205.             check_ldflags "-mabi=64" &&

  4206.             add_asflags "-mfp64"

  4207.         ;;

  4208.         loongson*)

  4209.             disable mips32r2

  4210.             disable mips32r6

  4211.             disable mips64r2

  4212.             disable mips64r6

  4213.             disable mipsfpu

  4214.             disable mipsdsp

  4215.             disable mipsdspr2

  4216.             disable msa

  4217.             enable local_aligned_8 local_aligned_16 local_aligned_32

  4218.             enable simd_align_16

  4219.             enable fast_64bit

  4220.             enable fast_clz

  4221.             enable fast_cmov

  4222.             enable fast_unaligned

  4223.             disable aligned_stack

  4224.             case $cpu in

  4225.                 loongson3*)

  4226.                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4227.                 ;;

  4228.                 loongson2e)

  4229.                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4230.                 ;;

  4231.                 loongson2f)

  4232.                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4233.                 ;;

  4234.             esac

  4235.         ;;

  4236.         generic)

  4237.             disable mips64r6

  4238.             disable msa

  4239.         ;;

  4240.         *)

  4241.             # Unknown CPU. Disable everything.

  4242.             warn "unknown CPU. Disabling all MIPS optimizations."

  4243.             disable mipsfpu

  4244.             disable mips32r2

  4245.             disable mips32r6

  4246.             disable mips64r2

  4247.             disable mips64r6

  4248.             disable mipsdsp

  4249.             disable mipsdspr2

  4250.             disable msa

  4251.         ;;

  4252.     esac

  4253. 

  4254. elif enabled ppc; then

  4255. 

  4256.     disable ldbrx

  4257. 

  4258.     case $(tolower $cpu) in

  4259.         601|ppc601|powerpc601)

  4260.             cpuflags="-mcpu=601"

  4261.             disable altivec

  4262.         ;;

  4263.         603*|ppc603*|powerpc603*)

  4264.             cpuflags="-mcpu=603"

  4265.             disable altivec

  4266.         ;;

  4267.         604*|ppc604*|powerpc604*)

  4268.             cpuflags="-mcpu=604"

  4269.             disable altivec

  4270.         ;;

  4271.         g3|75*|ppc75*|powerpc75*)

  4272.             cpuflags="-mcpu=750"

  4273.             disable altivec

  4274.         ;;

  4275.         g4|745*|ppc745*|powerpc745*)

  4276.             cpuflags="-mcpu=7450"

  4277.             disable vsx

  4278.         ;;

  4279.         74*|ppc74*|powerpc74*)

  4280.             cpuflags="-mcpu=7400"

  4281.             disable vsx

  4282.         ;;

  4283.         g5|970|ppc970|powerpc970)

  4284.             cpuflags="-mcpu=970"

  4285.             disable vsx

  4286.         ;;

  4287.         power[3-6]*)

  4288.             cpuflags="-mcpu=$cpu"

  4289.             disable vsx

  4290.         ;;

  4291.         power[7-8]*)

  4292.             cpuflags="-mcpu=$cpu"

  4293.         ;;

  4294.         cell)

  4295.             cpuflags="-mcpu=cell"

  4296.             enable ldbrx

  4297.             disable vsx

  4298.         ;;

  4299.         e500mc)

  4300.             cpuflags="-mcpu=e500mc"

  4301.             disable altivec

  4302.         ;;

  4303.         e500v2)

  4304.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4305.             disable altivec

  4306.             disable dcbzl

  4307.         ;;

  4308.         e500)

  4309.             cpuflags="-mcpu=8540 -mhard-float"

  4310.             disable altivec

  4311.             disable dcbzl

  4312.         ;;

  4313.     esac

  4314. 

  4315. elif enabled sparc; then

  4316. 

  4317.     case $cpu in

  4318.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4319.             cpuflags="-mcpu=$cpu"

  4320.         ;;

  4321.         ultrasparc*|niagara[234])

  4322.             cpuflags="-mcpu=$cpu"

  4323.         ;;

  4324.     esac

  4325. 

  4326. elif enabled x86; then

  4327. 

  4328.     case $cpu in

  4329.         i[345]86|pentium)

  4330.             cpuflags="-march=$cpu"

  4331.             disable i686

  4332.             disable mmx

  4333.         ;;

  4334.         # targets that do NOT support nopl and conditional mov (cmov)

  4335.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4336.             cpuflags="-march=$cpu"

  4337.             disable i686

  4338.         ;;

  4339.         # targets that do support nopl and conditional mov (cmov)

  4340.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4341.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)

  4342.             cpuflags="-march=$cpu"

  4343.             enable i686

  4344.             enable fast_cmov

  4345.         ;;

  4346.         # targets that do support conditional mov but on which it's slow

  4347.         pentium4|pentium4m|prescott|nocona)

  4348.             cpuflags="-march=$cpu"

  4349.             enable i686

  4350.             disable fast_cmov

  4351.         ;;

  4352.     esac

  4353. 

  4354. fi

  4355. 

  4356. if [ "$cpu" != generic ]; then

  4357.     add_cflags  $cpuflags

  4358.     add_asflags $cpuflags

  4359.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4360. fi

  4361. 

  4362. # compiler sanity check

  4363. check_exec <<EOF

  4364. int main(void){ return 0; }

  4365. EOF

  4366. if test "$?" != 0; then

  4367.     echo "$cc is unable to create an executable file."

  4368.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4369.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4370.         echo "Only do this if you know what cross compiling means."

  4371.     fi

  4372.     die "C compiler test failed."

  4373. fi

  4374. 

  4375. add_cppflags -D_ISOC99_SOURCE

  4376. add_cxxflags -D__STDC_CONSTANT_MACROS

  4377. check_cflags -std=c99

  4378. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4379. #include <stdlib.h>

  4380. EOF

  4381. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4382. #include <stdlib.h>

  4383. EOF

  4384. 

  4385. add_host_cppflags -D_ISOC99_SOURCE

  4386. check_host_cflags -std=c99

  4387. check_host_cflags -Wall

  4388. check_host_cflags -O3

  4389. 

  4390. check_64bit(){

  4391.     arch32=$1

  4392.     arch64=$2

  4393.     expr=$3

  4394.     check_code cc "" "int test[2*($expr) - 1]" &&

  4395.         subarch=$arch64 || subarch=$arch32

  4396. }

  4397. 

  4398. case "$arch" in

  4399.     aarch64|alpha|ia64)

  4400.         spic=$shared

  4401.     ;;

  4402.     mips)

  4403.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4404.         spic=$shared

  4405.     ;;

  4406.     parisc)

  4407.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4408.         spic=$shared

  4409.     ;;

  4410.     ppc)

  4411.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4412.         spic=$shared

  4413.     ;;

  4414.     s390)

  4415.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4416.         spic=$shared

  4417.     ;;

  4418.     sparc)

  4419.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4420.         spic=$shared

  4421.     ;;

  4422.     x86)

  4423.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4424.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4425.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4426.             subarch=x86_64

  4427.         if test "$subarch" = "x86_64"; then

  4428.             spic=$shared

  4429.         fi

  4430.     ;;

  4431.     ppc)

  4432.         check_cc <<EOF && subarch="ppc64"

  4433.         int test[(int)sizeof(char*) - 7];

  4434. EOF

  4435.     ;;

  4436. esac

  4437. 

  4438. enable $subarch

  4439. enabled spic && enable_weak pic

  4440. 

  4441. # OS specific

  4442. case $target_os in

  4443.     aix)

  4444.         SHFLAGS=-shared

  4445.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4446.         enabled shared && add_ldflags -Wl,-brtl

  4447.         ;;

  4448.     android)

  4449.         disable symver

  4450.         enable section_data_rel_ro

  4451.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4452.         SLIB_INSTALL_LINKS=

  4453.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4454.         ;;

  4455.     haiku)

  4456.         prefix_default="/boot/common"

  4457.         network_extralibs="-lnetwork"

  4458.         host_libs=

  4459.         ;;

  4460.     sunos)

  4461.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4462.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4463.         network_extralibs="-lsocket -lnsl"

  4464.         add_cppflags -D__EXTENSIONS__

  4465.         # When using suncc to build, the Solaris linker will mark

  4466.         # an executable with each instruction set encountered by

  4467.         # the Solaris assembler.  As our libraries contain their own

  4468.         # guards for processor-specific code, instead suppress

  4469.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4470.         enabled_all suncc x86 &&

  4471.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4472.             add_ldflags -Wl,-M,mapfile

  4473.         nm_default='nm -P -g'

  4474.         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'

  4475.         ;;

  4476.     netbsd)

  4477.         disable symver

  4478.         oss_indev_extralibs="-lossaudio"

  4479.         oss_outdev_extralibs="-lossaudio"

  4480.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4481.         ;;

  4482.     openbsd|bitrig)

  4483.         disable symver

  4484.         SHFLAGS='-shared'

  4485.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4486.         SLIB_INSTALL_LINKS=

  4487.         oss_indev_extralibs="-lossaudio"

  4488.         oss_outdev_extralibs="-lossaudio"

  4489.         ;;

  4490.     dragonfly)

  4491.         disable symver

  4492.         ;;

  4493.     freebsd)

  4494.         ;;

  4495.     bsd/os)

  4496.         add_extralibs -lpoll -lgnugetopt

  4497.         strip="strip -d"

  4498.         ;;

  4499.     darwin)

  4500.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4501.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4502.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4503.         strip="${strip} -x"

  4504.         add_ldflags -Wl,-dynamic,-search_paths_first

  4505.         SLIBSUF=".dylib"

  4506.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4507.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4508.         objformat="macho"

  4509.         enabled x86_64 && objformat="macho64"

  4510.         enabled_any pic shared x86_64 ||

  4511.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4512.         ;;

  4513.     msys*)

  4514.         die "Native MSYS builds are discouraged, please use the MINGW environment.";

  4515.         ;;

  4516.     mingw32*|mingw64*)

  4517.         if test $target_os = "mingw32ce"; then

  4518.             disable network

  4519.         else

  4520.             target_os=mingw32

  4521.         fi

  4522.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4523.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4524.         LIBTARGET=i386

  4525.         if enabled x86_64; then

  4526.             LIBTARGET="i386:x86-64"

  4527.         elif enabled arm; then

  4528.             LIBTARGET=arm-wince

  4529.         fi

  4530.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4531.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4532.         shlibdir_default="$bindir_default"

  4533.         SLIBPREF=""

  4534.         SLIBSUF=".dll"

  4535.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4536.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4537.         dlltool="${cross_prefix}dlltool"

  4538.         if check_cmd lib.exe -list; then

  4539.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4540.             if enabled x86_64; then

  4541.                 LIBTARGET=x64

  4542.             fi

  4543.         elif check_cmd $dlltool --version; then

  4544.             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)'

  4545.         fi

  4546.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4547.         SLIB_INSTALL_LINKS=

  4548.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4549.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4550.         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'

  4551.         objformat="win32"

  4552.         ranlib=:

  4553.         enable dos_paths

  4554.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4555.         # Lets work around some stupidity in binutils.

  4556.         # ld will strip relocations from executables even though we need them

  4557.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4558.         # however ld then forgets what the entry point should be (oops) so we

  4559.         # have to manually (re)set it.

  4560.         if enabled x86_32; then

  4561.             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4562.         elif enabled x86_64; then

  4563.             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4564.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4565.             # Set image base >4GB for extra entropy with HEASLR

  4566.             add_ldexeflags -Wl,--image-base,0x140000000

  4567.             append SHFLAGS -Wl,--image-base,0x180000000

  4568.         fi

  4569.         ;;

  4570.     win32|win64)

  4571.         disable symver

  4572.         if enabled shared; then

  4573.             # Link to the import library instead of the normal static library

  4574.             # for shared libs.

  4575.             LD_LIB='%.lib'

  4576.             # Cannot build both shared and static libs with MSVC or icl.

  4577.             disable static

  4578.         fi

  4579.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4580.         shlibdir_default="$bindir_default"

  4581.         SLIBPREF=""

  4582.         SLIBSUF=".dll"

  4583.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4584.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4585.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4586.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4587.         SLIB_INSTALL_LINKS=

  4588.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4589.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4590.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4591.         objformat="win32"

  4592.         ranlib=:

  4593.         enable dos_paths

  4594.         ;;

  4595.     cygwin*)

  4596.         target_os=cygwin

  4597.         shlibdir_default="$bindir_default"

  4598.         SLIBPREF="cyg"

  4599.         SLIBSUF=".dll"

  4600.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4601.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4602.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4603.         SLIB_INSTALL_LINKS=

  4604.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4605.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4606.         objformat="win32"

  4607.         enable dos_paths

  4608.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4609.         ;;

  4610.     *-dos|freedos|opendos)

  4611.         network_extralibs="-lsocket"

  4612.         objformat="coff"

  4613.         enable dos_paths

  4614.         add_cppflags -U__STRICT_ANSI__

  4615.         ;;

  4616.     linux)

  4617.         enable dv1394

  4618.         enable section_data_rel_ro

  4619.         ;;

  4620.     irix*)

  4621.         target_os=irix

  4622.         ranlib="echo ignoring ranlib"

  4623.         ;;

  4624.     os/2*)

  4625.         strip="lxlite -CS"

  4626.         ln_s="cp -f"

  4627.         objformat="aout"

  4628.         add_cppflags -D_GNU_SOURCE

  4629.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4630.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4631.         LIBSUF="_s.a"

  4632.         SLIBPREF=""

  4633.         SLIBSUF=".dll"

  4634.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'

  4635.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4636.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \

  4637.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \

  4638.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \

  4639.             echo EXPORTS >> $(SUBDIR)$(NAME).def; \

  4640.             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'

  4641.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \

  4642.             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'

  4643.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'

  4644.         enable dos_paths

  4645.         enable_weak os2threads

  4646.         ;;

  4647.     gnu/kfreebsd)

  4648.         add_cppflags -D_BSD_SOURCE

  4649.         ;;

  4650.     gnu)

  4651.         ;;

  4652.     qnx)

  4653.         add_cppflags -D_QNX_SOURCE

  4654.         network_extralibs="-lsocket"

  4655.         ;;

  4656.     symbian)

  4657.         SLIBSUF=".dll"

  4658.         enable dos_paths

  4659.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4660.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4661.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4662.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4663.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4664.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4665.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4666.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4667.         ;;

  4668.     osf1)

  4669.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4670.         ;;

  4671.     minix)

  4672.         ;;

  4673.     plan9)

  4674.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4675.                      -D_REENTRANT_SOURCE        \

  4676.                      -D_RESEARCH_SOURCE         \

  4677.                      -DFD_SETSIZE=96            \

  4678.                      -DHAVE_SOCK_OPTS

  4679.         add_compat strtod.o strtod=avpriv_strtod

  4680.         network_extralibs='-lbsd'

  4681.         exeobjs=compat/plan9/main.o

  4682.         disable ffserver

  4683.         cp_f='cp'

  4684.         ;;

  4685.     none)

  4686.         ;;

  4687.     *)

  4688.         die "Unknown OS '$target_os'."

  4689.         ;;

  4690. esac

  4691. 

  4692. # determine libc flavour

  4693. 

  4694. probe_libc(){

  4695.     pfx=$1

  4696.     pfx_no_=${pfx%_}

  4697.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4698.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4699.         eval ${pfx}libc_type=uclibc

  4700.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4701.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4702.         eval ${pfx}libc_type=glibc

  4703.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4704.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4705.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4706.         eval ${pfx}libc_type=newlib

  4707.         add_${pfx}cppflags -U__STRICT_ANSI__

  4708.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4709.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4710.         eval ${pfx}libc_type=mingw64

  4711.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4712.             add_compat msvcrt/snprintf.o

  4713.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4714.         fi

  4715.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4716.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4717.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4718.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4719.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4720.         eval ${pfx}libc_type=mingw32

  4721.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4722.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4723.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4724.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4725.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4726.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4727.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4728.         eval ${pfx}libc_type=msvcrt

  4729.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4730.             if [ "$pfx" = host_ ]; then

  4731.                 add_host_cppflags -Dsnprintf=_snprintf

  4732.             else

  4733.                 add_compat strtod.o strtod=avpriv_strtod

  4734.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4735.                                              _snprintf=avpriv_snprintf  \

  4736.                                              vsnprintf=avpriv_vsnprintf

  4737.             fi

  4738.         fi

  4739.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4740.         # 0x601 by default unless something else is set by the user.

  4741.         # This can easily lead to us detecting functions only present

  4742.         # in such new versions and producing binaries requiring windows 7.0.

  4743.         # Therefore explicitly set the default to XP unless the user has

  4744.         # set something else on the command line.

  4745.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4746.         # family. For these cases, configure is free to use any functions

  4747.         # found in the SDK headers by default. (Alternatively, we could force

  4748.         # _WIN32_WINNT to 0x0602 in that case.)

  4749.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4750.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4751. #ifdef WINAPI_FAMILY

  4752. #include <winapifamily.h>

  4753. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4754. #error not desktop

  4755. #endif

  4756. #endif

  4757. EOF

  4758.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4759.         eval ${pfx}libc_type=klibc

  4760.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4761.         eval ${pfx}libc_type=bionic

  4762.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4763.         eval ${pfx}libc_type=solaris

  4764.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4765.     fi

  4766.     check_${pfx}cc <<EOF

  4767. #include <time.h>

  4768. void *v = localtime_r;

  4769. EOF

  4770. 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

  4771. #include <time.h>

  4772. void *v = localtime_r;

  4773. EOF

  4774. 

  4775. }

  4776. 

  4777. probe_libc

  4778. test -n "$libc_type" && enable libc_$libc_type

  4779. probe_libc host_

  4780. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  4781. 

  4782. case $libc_type in

  4783.     bionic)

  4784.         add_compat strtod.o strtod=avpriv_strtod

  4785.         ;;

  4786. esac

  4787. 

  4788. # hacks for compiler/libc/os combinations

  4789. 

  4790. if enabled_all tms470 libc_glibc; then

  4791.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  4792.     add_cppflags -D__USER_LABEL_PREFIX__=

  4793.     add_cppflags -D__builtin_memset=memset

  4794.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  4795.     add_cflags   -pds=48    # incompatible redefinition of macro

  4796. fi

  4797. 

  4798. if enabled_all ccc libc_glibc; then

  4799.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  4800. fi

  4801. 

  4802. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  4803.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  4804. 

  4805. esc(){

  4806.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  4807. }

  4808. 

  4809. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  4810. 

  4811. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  4812. 

  4813. set_default libdir

  4814. : ${shlibdir_default:="$libdir"}

  4815. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  4816. 

  4817. set_default $PATHS_LIST

  4818. set_default nm

  4819. 

  4820. # we need to build at least one lib type

  4821. if ! enabled_any static shared; then

  4822.     cat <<EOF

  4823. At least one library type must be built.

  4824. Specify --enable-static to build the static libraries or --enable-shared to

  4825. build the shared libraries as well. To only build the shared libraries specify

  4826. --disable-static in addition to --enable-shared.

  4827. EOF

  4828.     exit 1;

  4829. fi

  4830. 

  4831. die_license_disabled() {

  4832.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  4833. }

  4834. 

  4835. die_license_disabled_gpl() {

  4836.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  4837. }

  4838. 

  4839. die_license_disabled gpl frei0r

  4840. die_license_disabled gpl libcdio

  4841. die_license_disabled gpl librubberband

  4842. die_license_disabled gpl libsmbclient

  4843. die_license_disabled gpl libutvideo

  4844. die_license_disabled gpl libvidstab

  4845. die_license_disabled gpl libx264

  4846. die_license_disabled gpl libx265

  4847. die_license_disabled gpl libxavs

  4848. die_license_disabled gpl libxvid

  4849. die_license_disabled gpl libzvbi

  4850. die_license_disabled gpl x11grab

  4851. 

  4852. die_license_disabled nonfree libaacplus

  4853. die_license_disabled nonfree libfaac

  4854. die_license_disabled nonfree nvenc

  4855. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  4856. enabled gpl && die_license_disabled_gpl nonfree openssl

  4857. 

  4858. die_license_disabled version3 gmp

  4859. die_license_disabled version3 libopencore_amrnb

  4860. die_license_disabled version3 libopencore_amrwb

  4861. die_license_disabled version3 libsmbclient

  4862. die_license_disabled version3 libvo_aacenc

  4863. die_license_disabled version3 libvo_amrwbenc

  4864. 

  4865. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  4866. 

  4867. disabled optimizations || check_cflags -fomit-frame-pointer

  4868. 

  4869. enable_weak_pic() {

  4870.     disabled pic && return

  4871.     enable pic

  4872.     add_cppflags -DPIC

  4873.     case "$target_os" in

  4874.     mingw*|cygwin*)

  4875.         ;;

  4876.     *)

  4877.         add_cflags -fPIC

  4878.         ;;

  4879.     esac

  4880.     add_asflags  -fPIC

  4881. }

  4882. 

  4883. enabled pic && enable_weak_pic

  4884. 

  4885. check_cc <<EOF || die "Symbol mangling check failed."

  4886. int ff_extern;

  4887. EOF

  4888. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  4889. extern_prefix=${sym%%ff_extern*}

  4890. 

  4891. check_cc <<EOF && enable_weak inline_asm

  4892. void foo(void) { __asm__ volatile ("" ::); }

  4893. EOF

  4894. 

  4895. _restrict=

  4896. for restrict_keyword in restrict __restrict__ __restrict; do

  4897.     check_cc <<EOF && _restrict=$restrict_keyword && break

  4898. void foo(char * $restrict_keyword p);

  4899. EOF

  4900. done

  4901. 

  4902. check_cc <<EOF && enable pragma_deprecated

  4903. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  4904. EOF

  4905. 

  4906. check_cc <<EOF && enable attribute_packed

  4907. struct { int x; } __attribute__((packed)) x;

  4908. EOF

  4909. 

  4910. check_cc <<EOF && enable attribute_may_alias

  4911. union { int x; } __attribute__((may_alias)) x;

  4912. EOF

  4913. 

  4914. check_cc <<EOF || die "endian test failed"

  4915. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  4916. EOF

  4917. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  4918. 

  4919. if ! enabled ppc64 || enabled bigendian; then

  4920.     disable vsx

  4921. fi

  4922. 

  4923. check_gas() {

  4924.     log "check_gas using '$as' as AS"

  4925.     # :vararg is used on aarch64, arm and ppc altivec

  4926.     check_as <<EOF || return 1

  4927. .macro m n, y:vararg=0

  4928. \n: .int \y

  4929. .endm

  4930. m x

  4931. EOF

  4932.     # .altmacro is only used in arm asm

  4933.     ! enabled arm || check_as <<EOF || return 1

  4934. .altmacro

  4935. EOF

  4936.     enable gnu_as

  4937.     return 0

  4938. }

  4939. 

  4940. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  4941.     nogas=:

  4942.     enabled_any arm aarch64 && nogas=die

  4943.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  4944.     as_noop=-v

  4945. 

  4946.     case $as_type in

  4947.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  4948.         gcc)  gaspp_as_type=gas ;;

  4949.         *)    gaspp_as_type=$as_type ;;

  4950.     esac

  4951. 

  4952.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  4953. 

  4954.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  4955.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  4956.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  4957. 

  4958.     if ! check_gas ; then

  4959.         as=${gas:=$as}

  4960.         check_gas || \

  4961.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  4962.     fi

  4963. 

  4964.     check_as <<EOF && enable as_func

  4965. .func test

  4966. .endfunc

  4967. EOF

  4968. fi

  4969. 

  4970. check_inline_asm inline_asm_labels '"1:\n"'

  4971. 

  4972. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  4973. 

  4974. if enabled aarch64; then

  4975.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  4976.     # internal assembler in clang 3.3 does not support this instruction

  4977.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  4978.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  4979. 

  4980.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  4981. 

  4982. elif enabled alpha; then

  4983. 

  4984.     check_cflags -mieee

  4985. 

  4986. elif enabled arm; then

  4987. 

  4988.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  4989. 

  4990.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  4991. float func(float a, float b){ return a+b; }

  4992. EOF

  4993. 

  4994.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  4995. 

  4996.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  4997.         enable vfp_args

  4998.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  4999.         enable vfp_args

  5000.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5001.         case "${cross_prefix:-$cc}" in

  5002.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5003.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5004. __asm__ (".eabi_attribute 28, 1");

  5005. int main(void) { return 0; }

  5006. EOF

  5007.         esac

  5008.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5009.     fi

  5010. 

  5011.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5012.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5013.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5014.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5015.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5016.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5017.     enabled setend  && check_insn setend  'setend be'

  5018. 

  5019.     [ $target_os = linux ] || [ $target_os = android ] ||

  5020.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5021.             $ARCH_EXT_LIST_ARM

  5022. 

  5023.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5024. 

  5025.     check_as <<EOF && enable as_dn_directive

  5026. ra .dn d0.i16

  5027. .unreq ra

  5028. EOF

  5029. 

  5030.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5031.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  5032. .object_arch armv4

  5033. EOF

  5034. 

  5035.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5036. 

  5037. elif enabled mips; then

  5038. 

  5039.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5040.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5041.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5042. 

  5043.     # Enable minimum ISA based on selected options

  5044.     if enabled mips64 && (enabled mipsdsp || enabled mipsdspr2); then

  5045.         add_cflags "-mips64r2"

  5046.         add_asflags "-mips64r2"

  5047.     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then

  5048.         add_cflags "-mips64"

  5049.         add_asflags "-mips64"

  5050.     elif enabled mipsdsp || enabled mipsdspr2; then

  5051.         add_cflags "-mips32r2 -mfp32"

  5052.         add_asflags "-mips32r2 -mfp32"

  5053.     fi

  5054. 

  5055.     enabled mipsdsp && add_cflags "-mdsp" && add_asflags "-mdsp" &&

  5056.      check_inline_asm mipsdsp '"addu.qb $t0, $t1, $t2"'

  5057.     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&

  5058.      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'

  5059.     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&

  5060.      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'

  5061.     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&

  5062.      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'

  5063. 

  5064.     enabled msa && add_asflags "-mmsa"

  5065. 

  5066. elif enabled parisc; then

  5067. 

  5068.     if enabled gcc; then

  5069.         case $($cc -dumpversion) in

  5070.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5071.         esac

  5072.     fi

  5073. 

  5074. elif enabled ppc; then

  5075. 

  5076.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5077. 

  5078.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5079.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5080.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5081.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5082. 

  5083.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5084.     if enabled altivec; then

  5085.         check_cflags -maltivec -mabi=altivec &&

  5086.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5087.         check_cflags -faltivec

  5088. 

  5089.         # check if our compiler supports Motorola AltiVec C API

  5090.         check_cc <<EOF || disable altivec

  5091. $inc_altivec_h

  5092. int main(void) {

  5093.     vector signed int v1 = (vector signed int) { 0 };

  5094.     vector signed int v2 = (vector signed int) { 1 };

  5095.     v1 = vec_add(v1, v2);

  5096.     return 0;

  5097. }

  5098. EOF

  5099. 

  5100.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5101.     fi

  5102. 

  5103.     if enabled vsx; then

  5104.         check_cflags -mvsx &&

  5105.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5106.     fi

  5107. 

  5108.     if enabled power8; then

  5109.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5110.     fi

  5111. 

  5112. elif enabled x86; then

  5113. 

  5114.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5115.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5116. 

  5117.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5118. 

  5119.     # check whether EBP is available on x86

  5120.     # As 'i' is stored on the stack, this program will crash

  5121.     # if the base pointer is used to access it because the

  5122.     # base pointer is cleared in the inline assembly code.

  5123.     check_exec_crash <<EOF && enable ebp_available

  5124. volatile int i=0;

  5125. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5126. return i;

  5127. EOF

  5128. 

  5129.     # check whether EBX is available on x86

  5130.     check_inline_asm ebx_available '""::"b"(0)' &&

  5131.         check_inline_asm ebx_available '"":::"%ebx"'

  5132. 

  5133.     # check whether xmm clobbers are supported

  5134.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5135. 

  5136.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5137.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5138. 

  5139.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5140.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5141.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5142. 

  5143.     if ! disabled_any asm mmx yasm; then

  5144.         if check_cmd $yasmexe --version; then

  5145.             enabled x86_64 && yasm_extra="-m amd64"

  5146.             yasm_debug="-g dwarf2"

  5147.         elif check_cmd nasm -v; then

  5148.             yasmexe=nasm

  5149.             yasm_debug="-g -F dwarf"

  5150.             if enabled x86_64; then

  5151.                 case "$objformat" in

  5152.                     elf)   objformat=elf64 ;;

  5153.                     win32) objformat=win64 ;;

  5154.                 esac

  5155.             fi

  5156.         fi

  5157. 

  5158.         YASMFLAGS="-f $objformat $yasm_extra"

  5159.         enabled pic               && append YASMFLAGS "-DPIC"

  5160.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5161.         case "$objformat" in

  5162.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5163.         esac

  5164. 

  5165.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5166.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5167.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5168.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5169.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5170.         check_yasm "CPU amdnop" || disable cpunop

  5171.     fi

  5172. 

  5173.     case "$cpu" in

  5174.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5175.             disable fast_clz

  5176.         ;;

  5177.     esac

  5178. 

  5179. fi

  5180. 

  5181. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5182. 

  5183. check_ldflags -Wl,--as-needed

  5184. check_ldflags -Wl,-z,noexecstack

  5185. 

  5186. if check_func dlopen; then

  5187.     ldl=

  5188. elif check_func dlopen -ldl; then

  5189.     ldl=-ldl

  5190. fi

  5191. 

  5192. frei0r_filter_extralibs='$ldl'

  5193. frei0r_src_filter_extralibs='$ldl'

  5194. ladspa_filter_extralibs='$ldl'

  5195. nvenc_encoder_extralibs='$ldl'

  5196. 

  5197. if ! disabled network; then

  5198.     check_func getaddrinfo $network_extralibs

  5199.     check_func inet_aton $network_extralibs

  5200. 

  5201.     check_type netdb.h "struct addrinfo"

  5202.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5203.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5204.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5205.     check_type poll.h "struct pollfd"

  5206.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5207.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5208.     check_type netinet/in.h "struct sockaddr_in6"

  5209.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5210.     check_type "sys/types.h sys/socket.h" socklen_t

  5211. 

  5212.     # Prefer arpa/inet.h over winsock2

  5213.     if check_header arpa/inet.h ; then

  5214.         check_func closesocket

  5215.     elif check_header winsock2.h ; then

  5216.         check_func_headers winsock2.h closesocket -lws2 &&

  5217.             network_extralibs="-lws2" ||

  5218.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5219.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5220.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5221. 

  5222.         check_type ws2tcpip.h socklen_t

  5223.         check_type ws2tcpip.h "struct addrinfo"

  5224.         check_type ws2tcpip.h "struct group_source_req"

  5225.         check_type ws2tcpip.h "struct ip_mreq_source"

  5226.         check_type ws2tcpip.h "struct ipv6_mreq"

  5227.         check_type winsock2.h "struct pollfd"

  5228.         check_struct winsock2.h "struct sockaddr" sa_len

  5229.         check_type ws2tcpip.h "struct sockaddr_in6"

  5230.         check_type ws2tcpip.h "struct sockaddr_storage"

  5231.     else

  5232.         disable network

  5233.     fi

  5234. fi

  5235. 

  5236. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5237. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5238. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5239. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5240. check_builtin sarestart signal.h "SA_RESTART"

  5241. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5242. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5243. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5244. 

  5245. case "$custom_allocator" in

  5246.     jemalloc)

  5247.         # jemalloc by default does not use a prefix

  5248.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5249.     ;;

  5250.     tcmalloc)

  5251.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5252.         malloc_prefix=tc_

  5253.     ;;

  5254. esac

  5255. 

  5256. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5257. check_func  ${malloc_prefix}memalign            && enable memalign

  5258. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5259. 

  5260. check_func  access

  5261. check_func  arc4random

  5262. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5263. check_func  fcntl

  5264. check_func  fork

  5265. check_func  gethrtime

  5266. check_func  getopt

  5267. check_func  getrusage

  5268. check_func  gettimeofday

  5269. check_func  isatty

  5270. check_func  mach_absolute_time

  5271. check_func  mkstemp

  5272. check_func  mmap

  5273. check_func  mprotect

  5274. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5275. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5276. check_func  sched_getaffinity

  5277. check_func  setrlimit

  5278. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5279. check_func  strerror_r

  5280. check_func  sysconf

  5281. check_func  sysctl

  5282. check_func  usleep

  5283. 

  5284. check_func_headers conio.h kbhit

  5285. check_func_headers io.h setmode

  5286. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5287. check_func_headers stdlib.h getenv

  5288. check_func_headers sys/stat.h lstat

  5289. 

  5290. check_func_headers windows.h CoTaskMemFree -lole32

  5291. check_func_headers windows.h GetProcessAffinityMask

  5292. check_func_headers windows.h GetProcessTimes

  5293. check_func_headers windows.h GetSystemTimeAsFileTime

  5294. check_func_headers windows.h MapViewOfFile

  5295. check_func_headers windows.h PeekNamedPipe

  5296. check_func_headers windows.h SetConsoleTextAttribute

  5297. check_func_headers windows.h SetConsoleCtrlHandler

  5298. check_func_headers windows.h Sleep

  5299. check_func_headers windows.h VirtualAlloc

  5300. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5301. check_func_headers glob.h glob

  5302. enabled xlib &&

  5303.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5304. 

  5305. check_header direct.h

  5306. check_header dirent.h

  5307. check_header dlfcn.h

  5308. check_header d3d11.h

  5309. check_header dxva.h

  5310. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5311. check_header io.h

  5312. check_header libcrystalhd/libcrystalhd_if.h

  5313. check_header mach/mach_time.h

  5314. check_header malloc.h

  5315. check_header net/udplite.h

  5316. check_header poll.h

  5317. check_header sys/mman.h

  5318. check_header sys/param.h

  5319. check_header sys/resource.h

  5320. check_header sys/select.h

  5321. check_header sys/time.h

  5322. check_header sys/un.h

  5323. check_header termios.h

  5324. check_header unistd.h

  5325. check_header valgrind/valgrind.h

  5326. check_header vdpau/vdpau.h

  5327. check_header vdpau/vdpau_x11.h

  5328. check_header VideoDecodeAcceleration/VDADecoder.h

  5329. check_header VideoToolbox/VideoToolbox.h

  5330. check_header windows.h

  5331. check_header X11/extensions/XvMClib.h

  5332. check_header asm/types.h

  5333. 

  5334. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5335. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5336. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5337. check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5338. 

  5339. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5340. 

  5341. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5342. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5343. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5344. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5345. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5346. 

  5347. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5348. check_type "va/va.h" "VADecPictureParameterBufferVP9"

  5349. 

  5350. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5351. 

  5352. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5353. 

  5354. if ! disabled w32threads && ! enabled pthreads; then

  5355.     check_func_headers "windows.h process.h" _beginthreadex &&

  5356.         enable w32threads || disable w32threads

  5357.     if ! enabled w32threads && enabled winrt; then

  5358.         check_func_headers "windows.h" CreateThread &&

  5359.             enable w32threads || disable w32threads

  5360.     fi

  5361. fi

  5362. 

  5363. # check for some common methods of building with pthread support

  5364. # do this before the optional library checks as some of them require pthreads

  5365. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5366.     enable pthreads

  5367.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5368.         add_cflags -pthread

  5369.         add_extralibs -pthread

  5370.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5371.         add_cflags -pthreads

  5372.         add_extralibs -pthreads

  5373.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5374.         add_cflags -ldl -pthread

  5375.         add_extralibs -ldl -pthread

  5376.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5377.         add_extralibs -lpthreadGC2

  5378.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5379.         :

  5380.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5381.         disable pthreads

  5382.     fi

  5383.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5384. fi

  5385. 

  5386. 

  5387. if enabled pthreads; then

  5388.   check_func pthread_cancel

  5389. fi

  5390. 

  5391. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5392. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5393. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5394. 

  5395. check_lib math.h sin -lm && LIBM="-lm"

  5396. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5397. 

  5398. atan2f_args=2

  5399. copysign_args=2

  5400. hypot_args=2

  5401. ldexpf_args=2

  5402. powf_args=2

  5403. 

  5404. for func in $MATH_FUNCS; do

  5405.     eval check_mathfunc $func \${${func}_args:-1}

  5406. done

  5407. 

  5408. for func in $COMPLEX_FUNCS; do

  5409.     eval check_complexfunc $func \${${func}_args:-1}

  5410. done

  5411. 

  5412. # these are off by default, so fail if requested and not available

  5413. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5414. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5415.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5416. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5417.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5418.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5419. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5420. enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }

  5421. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5422. enabled gmp               && require2 gmp gmp.h mpz_export -lgmp

  5423. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5424. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5425. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5426. enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus

  5427. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5428. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5429. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5430. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5431.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5432.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5433. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5434. enabled libdcadec         && require_pkg_config "dcadec >= 0.1.0" libdcadec/dca_context.h dcadec_context_create

  5435. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5436. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5437.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5438.                                  warn "using libfdk without pkg-config"; } }

  5439. flite_libs="-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"

  5440. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5441. enabled fontconfig        && enable libfontconfig

  5442. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5443. enabled libfreetype       && require_libfreetype

  5444. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5445. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5446. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5447.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5448.                                done || die "ERROR: libgsm not found"; }

  5449. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5450. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get

  5451. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5452. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5453. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5454. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5455. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5456. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5457. enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader

  5458. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5459. enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5460.                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5461.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5462.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5463.                                die "ERROR: libopenjpeg not found"; }

  5464. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5465. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5466. enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init

  5467. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5468. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5469. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5470. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5471. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5472.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5473. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5474. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5475. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5476. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5477. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5478. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5479. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5480.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5481.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5482. enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++

  5483. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5484. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5485. enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc

  5486. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5487. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5488. 

  5489. enabled libvpx            && {

  5490.     enabled libvpx_vp8_decoder && {

  5491.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5492.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5493.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5494.     }

  5495.     enabled libvpx_vp8_encoder && {

  5496.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5497.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5498.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5499.     }

  5500.     enabled libvpx_vp9_decoder && {

  5501.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5502.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5503.                 disable libvpx_vp9_decoder;

  5504.     }

  5505.     enabled libvpx_vp9_encoder && {

  5506.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5507.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5508.                 disable libvpx_vp9_encoder;

  5509.     }

  5510.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5511.         die "libvpx enabled but no supported decoders found"

  5512.     fi

  5513. }

  5514. 

  5515. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5516. enabled libwebp           && {

  5517.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5518.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5519. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5520.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5521.                                  warn "using libx264 without pkg-config"; } } &&

  5522.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5523.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5524.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5525.                                enable libx262; }

  5526. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5527.                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||

  5528.                                die "ERROR: libx265 version must be >= 57."; }

  5529. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5530. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5531. enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version

  5532. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5533. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi

  5534. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5535.                                 { ! enabled cross_compile && {

  5536.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5537.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5538.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5539.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5540.                                die "ERROR: mmal not found"; }

  5541. enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers

  5542. enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&

  5543.                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||

  5544.                                die "ERROR: NVENC API version 4 or older is not supported"; } &&

  5545.                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }

  5546. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5547.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5548.                                die "ERROR: openal not found"; } &&

  5549.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5550.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5551. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5552.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5553.                                die "ERROR: opencl not found"; } &&

  5554.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5555.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5556.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5557. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5558.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5559.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5560.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5561.                                die "ERROR: opengl not found."

  5562.                              }

  5563. enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5564.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5565.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5566.                                die "ERROR: openssl not found"; }

  5567. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5568. 

  5569. # libdc1394 check

  5570. if enabled libdc1394; then

  5571.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5572.         enable libdc1394_2; } ||

  5573.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5574.         enable libdc1394_1; } ||

  5575.     die "ERROR: No version of libdc1394 found "

  5576. fi

  5577. 

  5578. if enabled gcrypt; then

  5579.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5580.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  5581.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  5582.         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)

  5583.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||

  5584.             die "ERROR: gcrypt not found"

  5585.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs

  5586.     else

  5587.         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  5588.     fi

  5589. fi

  5590. 

  5591. if ! disabled sdl; then

  5592.     SDL_CONFIG="${cross_prefix}sdl-config"

  5593.     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then

  5594.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5595.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5596.         enable sdl

  5597.     else

  5598.         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then

  5599.             sdl_cflags=$("${SDL_CONFIG}" --cflags)

  5600.             sdl_libs=$("${SDL_CONFIG}" --libs)

  5601.             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&

  5602.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5603.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5604.             enable sdl

  5605.         elif enabled sdl ; then

  5606.             die "ERROR: SDL not found"

  5607.         else

  5608.             disable sdl

  5609.         fi

  5610.     fi

  5611.     if test $target_os = "mingw32"; then

  5612.         sdl_libs="$sdl_libs -mconsole"

  5613.     fi

  5614. fi

  5615. enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs

  5616. 

  5617. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5618.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5619.     enable securetransport; }

  5620. 

  5621. disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&

  5622.                        enable schannel && add_extralibs -lSecur32; }

  5623. 

  5624. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5625. enabled makeinfo \

  5626.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5627.     && enable makeinfo_html || disable makeinfo_html

  5628. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5629. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5630. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5631. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5632. 

  5633. check_header linux/fb.h

  5634. check_header linux/videodev.h

  5635. check_header linux/videodev2.h

  5636. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5637. 

  5638. check_header sys/videoio.h

  5639. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5640. 

  5641. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5642. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5643. # w32api 3.12 had it defined wrong

  5644. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5645. 

  5646. check_type "dshow.h" IBaseFilter

  5647. 

  5648. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5649. { check_header dev/bktr/ioctl_meteor.h &&

  5650.   check_header dev/bktr/ioctl_bt848.h; } ||

  5651. { check_header machine/ioctl_meteor.h &&

  5652.   check_header machine/ioctl_bt848.h; } ||

  5653. { check_header dev/video/meteor/ioctl_meteor.h &&

  5654.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5655. check_header dev/ic/bt8xx.h

  5656. 

  5657. check_header sndio.h

  5658. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5659.     enable_safe sys/soundcard.h

  5660. else

  5661.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5662.     #include <sys/soundcard.h>

  5663.     audio_buf_info abc;

  5664. EOF

  5665. fi

  5666. check_header soundcard.h

  5667. 

  5668. enabled_any alsa_indev alsa_outdev &&

  5669.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5670. 

  5671. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&

  5672.     check_func jack_port_get_latency_range -ljack

  5673. 

  5674. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5675. 

  5676. if enabled libcdio; then

  5677.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5678.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5679.     die "ERROR: No usable libcdio/cdparanoia found"

  5680. fi

  5681. 

  5682. enabled xlib &&

  5683.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5684. 

  5685. if ! disabled libxcb; then

  5686.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5687.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5688.     } && disable x11grab && enable libxcb

  5689. 

  5690. if enabled libxcb; then

  5691.     disabled libxcb_shm || {

  5692.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5693.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5694.         } && check_header sys/shm.h && enable libxcb_shm; }

  5695. 

  5696.     disabled libxcb_xfixes || {

  5697.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5698.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5699.         } && enable libxcb_xfixes; }

  5700. 

  5701.     disabled libxcb_shape || {

  5702.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5703.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5704.         } && enable libxcb_shape; }

  5705. 

  5706.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5707.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5708. fi

  5709. fi

  5710. 

  5711. if enabled x11grab; then

  5712.     enabled xlib || die "ERROR: Xlib not found"

  5713.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5714.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5715. fi

  5716. 

  5717. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5718. 

  5719. enabled dxva2api_h &&

  5720.     check_cc <<EOF && enable dxva2api_cobj

  5721. #define _WIN32_WINNT 0x0600

  5722. #define COBJMACROS

  5723. #include <windows.h>

  5724. #include <d3d9.h>

  5725. #include <dxva2api.h>

  5726. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5727. EOF

  5728. 

  5729. enabled vaapi &&

  5730.     check_lib va/va.h vaInitialize -lva ||

  5731.     disable vaapi

  5732. 

  5733. enabled vaapi && enabled xlib &&

  5734.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  5735.     enable vaapi_x11

  5736. 

  5737. enabled vdpau &&

  5738.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  5739.     disable vdpau

  5740. 

  5741. enabled vdpau && enabled xlib &&

  5742.     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  5743.     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&

  5744.     enable vdpau_x11

  5745. 

  5746. # Funny iconv installations are not unusual, so check it after all flags have been set

  5747. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  5748. 

  5749. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  5750. 

  5751. # add some useful compiler flags if supported

  5752. check_cflags -Wdeclaration-after-statement

  5753. check_cflags -Wall

  5754. check_cflags -Wdisabled-optimization

  5755. check_cflags -Wpointer-arith

  5756. check_cflags -Wredundant-decls

  5757. check_cflags -Wwrite-strings

  5758. check_cflags -Wtype-limits

  5759. check_cflags -Wundef

  5760. check_cflags -Wmissing-prototypes

  5761. check_cflags -Wno-pointer-to-int-cast

  5762. check_cflags -Wstrict-prototypes

  5763. check_cflags -Wempty-body

  5764. enabled extra_warnings && check_cflags -Winline

  5765. enabled extra_warnings && check_cflags -Wcast-qual

  5766. 

  5767. check_disable_warning(){

  5768.     warning_flag=-W${1#-Wno-}

  5769.     test_cflags $warning_flag && add_cflags $1

  5770. }

  5771. 

  5772. check_disable_warning -Wno-parentheses

  5773. check_disable_warning -Wno-switch

  5774. check_disable_warning -Wno-format-zero-length

  5775. check_disable_warning -Wno-pointer-sign

  5776. 

  5777. # add some linker flags

  5778. check_ldflags -Wl,--warn-common

  5779. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  5780. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  5781. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  5782. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  5783. 

  5784. # add some strip flags

  5785. # -wN '..@*' is more selective than -x, but not available everywhere.

  5786. check_stripflags -wN \'..@*\' || check_stripflags -x

  5787. 

  5788. enabled neon_clobber_test &&

  5789.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5790.                   -Wl,--wrap,avcodec_decode_audio4      \

  5791.                   -Wl,--wrap,avcodec_decode_video2      \

  5792.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5793.                   -Wl,--wrap,avcodec_encode_audio2      \

  5794.                   -Wl,--wrap,avcodec_encode_video2      \

  5795.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5796.                   -Wl,--wrap,swr_convert                \

  5797.                   -Wl,--wrap,avresample_convert ||

  5798.     disable neon_clobber_test

  5799. 

  5800. enabled xmm_clobber_test &&

  5801.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5802.                   -Wl,--wrap,avcodec_decode_audio4      \

  5803.                   -Wl,--wrap,avcodec_decode_video2      \

  5804.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5805.                   -Wl,--wrap,avcodec_encode_audio2      \

  5806.                   -Wl,--wrap,avcodec_encode_video2      \

  5807.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5808.                   -Wl,--wrap,swr_convert                \

  5809.                   -Wl,--wrap,avresample_convert         \

  5810.                   -Wl,--wrap,sws_scale ||

  5811.     disable xmm_clobber_test

  5812. 

  5813. echo "X { local: *; };" > $TMPV

  5814. if test_ldflags -Wl,--version-script,$TMPV; then

  5815.     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'

  5816. elif test_ldflags -Wl,-M,$TMPV; then

  5817.     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'

  5818. fi

  5819. 

  5820. check_cc <<EOF && enable symver_asm_label

  5821. void ff_foo(void) __asm__ ("av_foo@VERSION");

  5822. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  5823. EOF

  5824.     check_cc <<EOF && enable symver_gnu_asm

  5825. __asm__(".symver ff_foo,av_foo@VERSION");

  5826. void ff_foo(void) {}

  5827. EOF

  5828. 

  5829. if [ -z "$optflags" ]; then

  5830.     if enabled small; then

  5831.         optflags=$cflags_size

  5832.     elif enabled optimizations; then

  5833.         optflags=$cflags_speed

  5834.     else

  5835.         optflags=$cflags_noopt

  5836.     fi

  5837. fi

  5838. 

  5839. check_optflags(){

  5840.     check_cflags "$@"

  5841.     enabled lto && check_ldflags "$@"

  5842. }

  5843. 

  5844. 

  5845. if enabled lto; then

  5846.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  5847.     check_cflags  -flto

  5848.     check_ldflags -flto $cpuflags

  5849.     disable inline_asm_direct_symbol_refs

  5850. fi

  5851. 

  5852. check_optflags $optflags

  5853. check_optflags -fno-math-errno

  5854. check_optflags -fno-signed-zeros

  5855. 

  5856. enabled ftrapv && check_cflags -ftrapv

  5857. 

  5858. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  5859. int x;

  5860. EOF

  5861. 

  5862. 

  5863. if enabled icc; then

  5864.     # Just warnings, no remarks

  5865.     check_cflags -w1

  5866.     # -wd: Disable following warnings

  5867.     # 144, 167, 556: -Wno-pointer-sign

  5868.     # 188: enumerated type mixed with another type

  5869.     # 1292: attribute "foo" ignored

  5870.     # 1419: external declaration in primary source file

  5871.     # 10006: ignoring unknown option -fno-signed-zeros

  5872.     # 10148: ignoring unknown option -Wno-parentheses

  5873.     # 10156: ignoring option '-W'; no argument required

  5874.     # 13200: No EMMS instruction before call to function

  5875.     # 13203: No EMMS instruction before return from function

  5876.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  5877.     # 11030: Warning unknown option --as-needed

  5878.     # 10156: ignoring option '-export'; no argument required

  5879.     check_ldflags -wd10156,11030

  5880.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  5881.     enable ebp_available

  5882.     # The test above does not test linking

  5883.     enabled lto && disable symver_asm_label

  5884.     if enabled x86_32; then

  5885.         icc_version=$($cc -dumpversion)

  5886.         test ${icc_version%%.*} -ge 11 &&

  5887.             check_cflags -falign-stack=maintain-16-byte ||

  5888.             disable aligned_stack

  5889.     fi

  5890. elif enabled ccc; then

  5891.     # disable some annoying warnings

  5892.     add_cflags -msg_disable bitnotint

  5893.     add_cflags -msg_disable mixfuncvoid

  5894.     add_cflags -msg_disable nonstandcast

  5895.     add_cflags -msg_disable unsupieee

  5896. elif enabled gcc; then

  5897.     check_optflags -fno-tree-vectorize

  5898.     check_cflags -Werror=format-security

  5899.     check_cflags -Werror=implicit-function-declaration

  5900.     check_cflags -Werror=missing-prototypes

  5901.     check_cflags -Werror=return-type

  5902.     check_cflags -Werror=vla

  5903.     check_cflags -Wformat

  5904.     check_cflags -fdiagnostics-color=auto

  5905.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  5906. elif enabled llvm_gcc; then

  5907.     check_cflags -mllvm -stack-alignment=16

  5908. elif enabled clang; then

  5909.     check_cflags -mllvm -stack-alignment=16

  5910.     check_cflags -Qunused-arguments

  5911.     check_cflags -Werror=implicit-function-declaration

  5912.     check_cflags -Werror=missing-prototypes

  5913.     check_cflags -Werror=return-type

  5914. elif enabled cparser; then

  5915.     add_cflags -Wno-missing-variable-declarations

  5916.     add_cflags -Wno-empty-statement

  5917. elif enabled armcc; then

  5918.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  5919.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  5920.     # 2523: use of inline assembly is deprecated

  5921.     add_cflags -W${armcc_opt},--diag_suppress=2523

  5922.     add_cflags -W${armcc_opt},--diag_suppress=1207

  5923.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  5924.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  5925.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  5926.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  5927. elif enabled tms470; then

  5928.     add_cflags -pds=824 -pds=837

  5929.     disable inline_asm

  5930. elif enabled pathscale; then

  5931.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  5932. elif enabled_any msvc icl; then

  5933.     enabled x86_32 && disable aligned_stack

  5934.     enabled_all x86_32 debug && add_cflags -Oy-

  5935.     enabled debug && add_ldflags -debug

  5936.     enable pragma_deprecated

  5937.     if enabled icl; then

  5938.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  5939.         # (correctly) on icl 13.x.

  5940.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  5941.             add_cflags -Qansi-alias

  5942.         # Some inline asm is not compilable in debug

  5943.         if enabled debug; then

  5944.             disable ebp_available

  5945.             disable ebx_available

  5946.         fi

  5947.     fi

  5948.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  5949.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  5950.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  5951.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  5952.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  5953.     # MSVC 2013 and newer can handle it fine.

  5954.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  5955.     # happens in config.h.

  5956.     if [ $_restrict != restrict ]; then

  5957.         check_cc <<EOF || add_cflags -FIstdlib.h

  5958. __declspec($_restrict) void* foo(int);

  5959. EOF

  5960.     fi

  5961.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5962. fi

  5963. 

  5964. for pfx in "" host_; do

  5965.     varname=${pfx%_}cc_type

  5966.     eval "type=\$$varname"

  5967.     if [ $type = "msvc" ]; then

  5968.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  5969. static inline int foo(int a) { return a; }

  5970. EOF

  5971.     fi

  5972. done

  5973. 

  5974. case $as_type in

  5975.     clang)

  5976.         add_asflags -Qunused-arguments

  5977.     ;;

  5978. esac

  5979. 

  5980. case $ld_type in

  5981.     clang)

  5982.         check_ldflags -Qunused-arguments

  5983.     ;;

  5984. esac

  5985. 

  5986. case $target_os in

  5987.     osf1)

  5988.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  5989.     ;;

  5990.     plan9)

  5991.         add_cppflags -Dmain=plan9_main

  5992.     ;;

  5993. esac

  5994. 

  5995. enable frame_thread_encoder

  5996. 

  5997. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  5998. 

  5999. check_deps $CONFIG_LIST       \

  6000.            $CONFIG_EXTRA      \

  6001.            $HAVE_LIST         \

  6002.            $ALL_COMPONENTS    \

  6003. 

  6004. 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"

  6005. 

  6006. 

  6007. if test $target_os = "haiku"; then

  6008.     disable memalign

  6009.     disable posix_memalign

  6010. fi

  6011. 

  6012. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  6013.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  6014.     enable dxva2_lib

  6015. 

  6016. ! enabled_any memalign posix_memalign aligned_malloc &&

  6017.     enabled simd_align_16 && enable memalign_hack

  6018. 

  6019. # add_dep lib dep

  6020. # -> enable ${lib}_deps_${dep}

  6021. # -> add $dep to ${lib}_deps only once

  6022. add_dep() {

  6023.     lib=$1

  6024.     dep=$2

  6025.     enabled "${lib}_deps_${dep}" && return 0

  6026.     enable  "${lib}_deps_${dep}"

  6027.     prepend "${lib}_deps" $dep

  6028. }

  6029. 

  6030. # merge deps lib components

  6031. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6032. merge_deps() {

  6033.     lib=$1

  6034.     shift

  6035.     for comp in $*; do

  6036.         enabled $comp || continue

  6037.         eval "dep=\"\$${comp}_deps\""

  6038.         for d in $dep; do

  6039.             add_dep $lib $d

  6040.         done

  6041.     done

  6042. }

  6043. 

  6044. merge_deps libavfilter $FILTER_LIST

  6045. 

  6046. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6047. 

  6048. for thread in $THREADS_LIST; do

  6049.     if enabled $thread; then

  6050.         test -n "$thread_type" &&

  6051.             die "ERROR: Only one thread type must be selected." ||

  6052.             thread_type="$thread"

  6053.     fi

  6054. done

  6055. 

  6056. enabled zlib && add_cppflags -DZLIB_CONST

  6057. 

  6058. # conditional library dependencies, in linking order

  6059. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6060. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6061. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  6062. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6063. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6064. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6065. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6066. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6067. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6068. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6069. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6070. enabled pan_filter          && prepend avfilter_deps "swresample"

  6071. enabled pp_filter           && prepend avfilter_deps "postproc"

  6072. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6073. enabled resample_filter && prepend avfilter_deps "avresample"

  6074. enabled sab_filter          && prepend avfilter_deps "swscale"

  6075. enabled scale_filter    && prepend avfilter_deps "swscale"

  6076. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6077. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6078. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6079. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6080. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6081. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6082. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6083. 

  6084. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6085. 

  6086. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6087. 

  6088. expand_deps(){

  6089.     lib_deps=${1}_deps

  6090.     eval "deps=\$$lib_deps"

  6091.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6092.     unique $lib_deps

  6093. }

  6094. 

  6095. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6096. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6097. 

  6098. map 'expand_deps $v' $LIBRARY_LIST

  6099. 

  6100. echo "install prefix            $prefix"

  6101. echo "source path               $source_path"

  6102. echo "C compiler                $cc"

  6103. echo "C library                 $libc_type"

  6104. if test "$host_cc" != "$cc"; then

  6105.     echo "host C compiler           $host_cc"

  6106.     echo "host C library            $host_libc_type"

  6107. fi

  6108. echo "ARCH                      $arch ($cpu)"

  6109. if test "$build_suffix" != ""; then

  6110.     echo "build suffix              $build_suffix"

  6111. fi

  6112. if test "$progs_suffix" != ""; then

  6113.     echo "progs suffix              $progs_suffix"

  6114. fi

  6115. if test "$extra_version" != ""; then

  6116.     echo "version string suffix     $extra_version"

  6117. fi

  6118. echo "big-endian                ${bigendian-no}"

  6119. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6120. if enabled x86; then

  6121.     echo "${yasmexe}                      ${yasm-no}"

  6122.     echo "MMX enabled               ${mmx-no}"

  6123.     echo "MMXEXT enabled            ${mmxext-no}"

  6124.     echo "3DNow! enabled            ${amd3dnow-no}"

  6125.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6126.     echo "SSE enabled               ${sse-no}"

  6127.     echo "SSSE3 enabled             ${ssse3-no}"

  6128.     echo "AESNI enabled             ${aesni-no}"

  6129.     echo "AVX enabled               ${avx-no}"

  6130.     echo "XOP enabled               ${xop-no}"

  6131.     echo "FMA3 enabled              ${fma3-no}"

  6132.     echo "FMA4 enabled              ${fma4-no}"

  6133.     echo "i686 features enabled     ${i686-no}"

  6134.     echo "CMOV is fast              ${fast_cmov-no}"

  6135.     echo "EBX available             ${ebx_available-no}"

  6136.     echo "EBP available             ${ebp_available-no}"

  6137. fi

  6138. if enabled aarch64; then

  6139.     echo "NEON enabled              ${neon-no}"

  6140.     echo "VFP enabled               ${vfp-no}"

  6141. fi

  6142. if enabled arm; then

  6143.     echo "ARMv5TE enabled           ${armv5te-no}"

  6144.     echo "ARMv6 enabled             ${armv6-no}"

  6145.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6146.     echo "VFP enabled               ${vfp-no}"

  6147.     echo "NEON enabled              ${neon-no}"

  6148.     echo "THUMB enabled             ${thumb-no}"

  6149. fi

  6150. if enabled mips; then

  6151.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6152.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6153.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6154.     echo "MIPS MSA enabled          ${msa-no}"

  6155.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6156. fi

  6157. if enabled ppc; then

  6158.     echo "AltiVec enabled           ${altivec-no}"

  6159.     echo "VSX enabled               ${vsx-no}"

  6160.     echo "POWER8 enabled            ${power8-no}"

  6161.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6162.     echo "dcbzl available           ${dcbzl-no}"

  6163. fi

  6164. echo "debug symbols             ${debug-no}"

  6165. echo "strip symbols             ${stripping-no}"

  6166. echo "optimize for size         ${small-no}"

  6167. echo "optimizations             ${optimizations-no}"

  6168. echo "static                    ${static-no}"

  6169. echo "shared                    ${shared-no}"

  6170. echo "postprocessing support    ${postproc-no}"

  6171. echo "new filter support        ${avfilter-no}"

  6172. echo "network support           ${network-no}"

  6173. echo "threading support         ${thread_type-no}"

  6174. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6175. echo "SDL support               ${sdl-no}"

  6176. echo "opencl enabled            ${opencl-no}"

  6177. echo "texi2html enabled         ${texi2html-no}"

  6178. echo "perl enabled              ${perl-no}"

  6179. echo "pod2man enabled           ${pod2man-no}"

  6180. echo "makeinfo enabled          ${makeinfo-no}"

  6181. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6182. test -n "$random_seed" &&

  6183.     echo "random seed               ${random_seed}"

  6184. echo

  6185. 

  6186. echo "Enabled programs:"

  6187. print_enabled '' $PROGRAM_LIST | print_in_columns

  6188. echo

  6189. 

  6190. echo "External libraries:"

  6191. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6192. echo

  6193. 

  6194. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6195.     echo "Enabled ${type}s:"

  6196.     eval list=\$$(toupper $type)_LIST

  6197.     print_enabled '_*' $list | print_in_columns

  6198.     echo

  6199. done

  6200. 

  6201. license="LGPL version 2.1 or later"

  6202. if enabled nonfree; then

  6203.     license="nonfree and unredistributable"

  6204. elif enabled gplv3; then

  6205.     license="GPL version 3 or later"

  6206. elif enabled lgplv3; then

  6207.     license="LGPL version 3 or later"

  6208. elif enabled gpl; then

  6209.     license="GPL version 2 or later"

  6210. fi

  6211. 

  6212. echo "License: $license"

  6213. 

  6214. echo "Creating config.mak, config.h, and doc/config.texi..."

  6215. 

  6216. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6217. 

  6218. enabled stripping || strip="echo skipping strip"

  6219. 

  6220. config_files="$TMPH config.mak doc/config.texi"

  6221. 

  6222. cat > config.mak <<EOF

  6223. # Automatically generated by configure - do not modify!

  6224. ifndef FFMPEG_CONFIG_MAK

  6225. FFMPEG_CONFIG_MAK=1

  6226. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6227. prefix=$prefix

  6228. LIBDIR=\$(DESTDIR)$libdir

  6229. SHLIBDIR=\$(DESTDIR)$shlibdir

  6230. INCDIR=\$(DESTDIR)$incdir

  6231. BINDIR=\$(DESTDIR)$bindir

  6232. DATADIR=\$(DESTDIR)$datadir

  6233. DOCDIR=\$(DESTDIR)$docdir

  6234. MANDIR=\$(DESTDIR)$mandir

  6235. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6236. SRC_PATH=$source_path

  6237. ifndef MAIN_MAKEFILE

  6238. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6239. endif

  6240. CC_IDENT=$cc_ident

  6241. ARCH=$arch

  6242. INTRINSICS=$intrinsics

  6243. CC=$cc

  6244. CXX=$cxx

  6245. AS=$as

  6246. OBJCC=$objcc

  6247. LD=$ld

  6248. DEPCC=$dep_cc

  6249. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6250. DEPAS=$as

  6251. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6252. YASM=$yasmexe

  6253. DEPYASM=$yasmexe

  6254. AR=$ar

  6255. ARFLAGS=$arflags

  6256. AR_O=$ar_o

  6257. RANLIB=$ranlib

  6258. STRIP=$strip

  6259. CP=cp -p

  6260. LN_S=$ln_s

  6261. CPPFLAGS=$CPPFLAGS

  6262. CFLAGS=$CFLAGS

  6263. CXXFLAGS=$CXXFLAGS

  6264. OBJCFLAGS=$OBJCFLAGS

  6265. ASFLAGS=$ASFLAGS

  6266. AS_C=$AS_C

  6267. AS_O=$AS_O

  6268. OBJCC_C=$OBJCC_C

  6269. OBJCC_E=$OBJCC_E

  6270. OBJCC_O=$OBJCC_O

  6271. CC_C=$CC_C

  6272. CC_E=$CC_E

  6273. CC_O=$CC_O

  6274. CXX_C=$CXX_C

  6275. CXX_O=$CXX_O

  6276. LD_O=$LD_O

  6277. LD_LIB=$LD_LIB

  6278. LD_PATH=$LD_PATH

  6279. DLLTOOL=$dlltool

  6280. WINDRES=$windres

  6281. DEPWINDRES=$dep_cc

  6282. DOXYGEN=$doxygen

  6283. LDFLAGS=$LDFLAGS

  6284. LDEXEFLAGS=$LDEXEFLAGS

  6285. LDLIBFLAGS=$LDLIBFLAGS

  6286. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6287. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6288. YASMFLAGS=$YASMFLAGS

  6289. BUILDSUF=$build_suffix

  6290. PROGSSUF=$progs_suffix

  6291. FULLNAME=$FULLNAME

  6292. LIBPREF=$LIBPREF

  6293. LIBSUF=$LIBSUF

  6294. LIBNAME=$LIBNAME

  6295. SLIBPREF=$SLIBPREF

  6296. SLIBSUF=$SLIBSUF

  6297. EXESUF=$EXESUF

  6298. EXTRA_VERSION=$extra_version

  6299. CCDEP=$CCDEP

  6300. CXXDEP=$CXXDEP

  6301. CCDEP_FLAGS=$CCDEP_FLAGS

  6302. ASDEP=$ASDEP

  6303. ASDEP_FLAGS=$ASDEP_FLAGS

  6304. CC_DEPFLAGS=$CC_DEPFLAGS

  6305. AS_DEPFLAGS=$AS_DEPFLAGS

  6306. HOSTCC=$host_cc

  6307. HOSTLD=$host_ld

  6308. HOSTCFLAGS=$host_cflags

  6309. HOSTCPPFLAGS=$host_cppflags

  6310. HOSTEXESUF=$HOSTEXESUF

  6311. HOSTLDFLAGS=$host_ldflags

  6312. HOSTLIBS=$host_libs

  6313. DEPHOSTCC=$host_cc

  6314. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6315. HOSTCCDEP=$HOSTCCDEP

  6316. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6317. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6318. HOSTCC_C=$HOSTCC_C

  6319. HOSTCC_O=$HOSTCC_O

  6320. HOSTLD_O=$HOSTLD_O

  6321. TARGET_EXEC=$target_exec $target_exec_args

  6322. TARGET_PATH=$target_path

  6323. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6324. CFLAGS-ffplay=$sdl_cflags

  6325. ZLIB=$($ldflags_filter -lz)

  6326. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6327. EXTRALIBS=$extralibs

  6328. COMPAT_OBJS=$compat_objs

  6329. EXEOBJS=$exeobjs

  6330. INSTALL=$install

  6331. LIBTARGET=${LIBTARGET}

  6332. SLIBNAME=${SLIBNAME}

  6333. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6334. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6335. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6336. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6337. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6338. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6339. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6340. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6341. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6342. NOREDZONE_FLAGS=$noredzone_flags

  6343. EOF

  6344. 

  6345. get_version(){

  6346.     lcname=lib${1}

  6347.     name=$(toupper $lcname)

  6348.     file=$source_path/$lcname/version.h

  6349.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6350.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6351.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6352.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6353.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6354.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6355. }

  6356. 

  6357. map 'get_version $v' $LIBRARY_LIST

  6358. 

  6359. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6360. 

  6361. print_program_libs(){

  6362.     eval "program_libs=\$${1}_libs"

  6363.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6364. }

  6365. 

  6366. map 'print_program_libs $v' $PROGRAM_LIST

  6367. 

  6368. cat > $TMPH <<EOF

  6369. /* Automatically generated by configure - do not modify! */

  6370. #ifndef FFMPEG_CONFIG_H

  6371. #define FFMPEG_CONFIG_H

  6372. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6373. #define FFMPEG_LICENSE "$(c_escape $license)"

  6374. #define CONFIG_THIS_YEAR 2016

  6375. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6376. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6377. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6378. #define av_restrict $_restrict

  6379. #define EXTERN_PREFIX "${extern_prefix}"

  6380. #define EXTERN_ASM ${extern_prefix}

  6381. #define BUILDSUF "$build_suffix"

  6382. #define SLIBSUF "$SLIBSUF"

  6383. #define HAVE_MMX2 HAVE_MMXEXT

  6384. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6385. EOF

  6386. 

  6387. test -n "$assert_level" &&

  6388.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6389. 

  6390. test -n "$malloc_prefix" &&

  6391.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6392. 

  6393. if enabled yasm; then

  6394.     append config_files $TMPASM

  6395.     printf '' >$TMPASM

  6396. fi

  6397. 

  6398. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6399. 

  6400. 

  6401. mkdir -p doc

  6402. mkdir -p tests

  6403. mkdir -p tests/api

  6404. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6405. 

  6406. print_config ARCH_   "$config_files" $ARCH_LIST

  6407. print_config HAVE_   "$config_files" $HAVE_LIST

  6408. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6409.                                      $CONFIG_EXTRA      \

  6410.                                      $ALL_COMPONENTS    \

  6411. 

  6412. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6413. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6414. 

  6415. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6416. cp_if_changed $TMPH config.h

  6417. touch .config

  6418. 

  6419. enabled yasm && cp_if_changed $TMPASM config.asm

  6420. 

  6421. cat > $TMPH <<EOF

  6422. /* Generated by ffconf */

  6423. #ifndef AVUTIL_AVCONFIG_H

  6424. #define AVUTIL_AVCONFIG_H

  6425. EOF

  6426. 

  6427. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6428. 

  6429. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6430. 

  6431. cp_if_changed $TMPH libavutil/avconfig.h

  6432. 

  6433. if test -n "$WARNINGS"; then

  6434.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6435.     enabled fatal_warnings && exit 1

  6436. fi

  6437. 

  6438. # build pkg-config files

  6439. 

  6440. lib_version(){

  6441.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6442. }

  6443. 

  6444. pkgconfig_generate(){

  6445.     name=$1

  6446.     shortname=${name#lib}${build_suffix}

  6447.     comment=$2

  6448.     version=$3

  6449.     libs=$4

  6450.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6451.     requires=${requires%, }

  6452.     enabled ${name#lib} || return 0

  6453.     mkdir -p $name

  6454.     cat <<EOF > $name/$name${build_suffix}.pc

  6455. prefix=$prefix

  6456. exec_prefix=\${prefix}

  6457. libdir=$libdir

  6458. includedir=$incdir

  6459. 

  6460. Name: $name

  6461. Description: $comment

  6462. Version: $version

  6463. Requires: $(enabled shared || echo $requires)

  6464. Requires.private: $(enabled shared && echo $requires)

  6465. Conflicts:

  6466. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6467. Libs.private: $(enabled shared && echo $libs)

  6468. Cflags: -I\${includedir}

  6469. EOF

  6470. 

  6471. mkdir -p doc/examples/pc-uninstalled

  6472. includedir=${source_path}

  6473. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6474.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6475. prefix=

  6476. exec_prefix=

  6477. libdir=\${pcfiledir}/../../../$name

  6478. includedir=${includedir}

  6479. 

  6480. Name: $name

  6481. Description: $comment

  6482. Version: $version

  6483. Requires: $requires

  6484. Conflicts:

  6485. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6486. Cflags: -I\${includedir}

  6487. EOF

  6488. }

  6489. 

  6490. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6491. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6492. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6493. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6494. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6495. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6496. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6497. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6498. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"