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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --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.     isfinite

  1824.     isinf

  1825.     isnan

  1826.     ldexpf

  1827.     llrint

  1828.     llrintf

  1829.     log2

  1830.     log2f

  1831.     log10f

  1832.     lrint

  1833.     lrintf

  1834.     powf

  1835.     rint

  1836.     round

  1837.     roundf

  1838.     sinf

  1839.     trunc

  1840.     truncf

  1841. "

  1842. 

  1843. SYSTEM_FUNCS="

  1844.     access

  1845.     aligned_malloc

  1846.     arc4random

  1847.     clock_gettime

  1848.     closesocket

  1849.     CommandLineToArgvW

  1850.     CoTaskMemFree

  1851.     CryptGenRandom

  1852.     dlopen

  1853.     fcntl

  1854.     flt_lim

  1855.     fork

  1856.     getaddrinfo

  1857.     gethrtime

  1858.     getopt

  1859.     GetProcessAffinityMask

  1860.     GetProcessMemoryInfo

  1861.     GetProcessTimes

  1862.     getrusage

  1863.     GetSystemTimeAsFileTime

  1864.     gettimeofday

  1865.     glob

  1866.     glXGetProcAddress

  1867.     gmtime_r

  1868.     inet_aton

  1869.     isatty

  1870.     jack_port_get_latency_range

  1871.     kbhit

  1872.     localtime_r

  1873.     lstat

  1874.     lzo1x_999_compress

  1875.     mach_absolute_time

  1876.     MapViewOfFile

  1877.     memalign

  1878.     mkstemp

  1879.     mmap

  1880.     mprotect

  1881.     nanosleep

  1882.     PeekNamedPipe

  1883.     posix_memalign

  1884.     pthread_cancel

  1885.     sched_getaffinity

  1886.     SetConsoleTextAttribute

  1887.     SetConsoleCtrlHandler

  1888.     setmode

  1889.     setrlimit

  1890.     Sleep

  1891.     strerror_r

  1892.     sysconf

  1893.     sysctl

  1894.     usleep

  1895.     UTGetOSTypeFromString

  1896.     VirtualAlloc

  1897.     wglGetProcAddress

  1898. "

  1899. 

  1900. TOOLCHAIN_FEATURES="

  1901.     as_dn_directive

  1902.     as_func

  1903.     as_object_arch

  1904.     asm_mod_q

  1905.     attribute_may_alias

  1906.     attribute_packed

  1907.     ebp_available

  1908.     ebx_available

  1909.     gnu_as

  1910.     gnu_windres

  1911.     ibm_asm

  1912.     inline_asm_labels

  1913.     inline_asm_nonlocal_labels

  1914.     inline_asm_direct_symbol_refs

  1915.     pragma_deprecated

  1916.     rsync_contimeout

  1917.     symver_asm_label

  1918.     symver_gnu_asm

  1919.     vfp_args

  1920.     xform_asm

  1921.     xmm_clobbers

  1922. "

  1923. 

  1924. TYPES_LIST="

  1925.     CONDITION_VARIABLE_Ptr

  1926.     socklen_t

  1927.     struct_addrinfo

  1928.     struct_group_source_req

  1929.     struct_ip_mreq_source

  1930.     struct_ipv6_mreq

  1931.     struct_pollfd

  1932.     struct_rusage_ru_maxrss

  1933.     struct_sctp_event_subscribe

  1934.     struct_sockaddr_in6

  1935.     struct_sockaddr_sa_len

  1936.     struct_sockaddr_storage

  1937.     struct_stat_st_mtim_tv_nsec

  1938.     struct_v4l2_frmivalenum_discrete

  1939. "

  1940. 

  1941. HAVE_LIST="

  1942.     $ARCH_EXT_LIST

  1943.     $(add_suffix _external $ARCH_EXT_LIST)

  1944.     $(add_suffix _inline   $ARCH_EXT_LIST)

  1945.     $ARCH_FEATURES

  1946.     $ATOMICS_LIST

  1947.     $BUILTIN_LIST

  1948.     $COMPLEX_FUNCS

  1949.     $HAVE_LIST_CMDLINE

  1950.     $HAVE_LIST_PUB

  1951.     $HEADERS_LIST

  1952.     $INTRINSICS_LIST

  1953.     $MATH_FUNCS

  1954.     $SYSTEM_FUNCS

  1955.     $THREADS_LIST

  1956.     $TOOLCHAIN_FEATURES

  1957.     $TYPES_LIST

  1958.     atomics_native

  1959.     dos_paths

  1960.     dxva2api_cobj

  1961.     dxva2_lib

  1962.     winrt

  1963.     libc_msvcrt

  1964.     libdc1394_1

  1965.     libdc1394_2

  1966.     makeinfo

  1967.     makeinfo_html

  1968.     perl

  1969.     pod2man

  1970.     sdl

  1971.     section_data_rel_ro

  1972.     texi2html

  1973.     threads

  1974.     vaapi_x11

  1975.     vdpau_x11

  1976.     xlib

  1977. "

  1978. 

  1979. # options emitted with CONFIG_ prefix but not available on the command line

  1980. CONFIG_EXTRA="

  1981.     aandcttables

  1982.     ac3dsp

  1983.     audio_frame_queue

  1984.     audiodsp

  1985.     blockdsp

  1986.     bswapdsp

  1987.     cabac

  1988.     dirac_parse

  1989.     dvprofile

  1990.     exif

  1991.     faandct

  1992.     faanidct

  1993.     fdctdsp

  1994.     flacdsp

  1995.     fmtconvert

  1996.     frame_thread_encoder

  1997.     g722dsp

  1998.     golomb

  1999.     gplv3

  2000.     h263dsp

  2001.     h264chroma

  2002.     h264dsp

  2003.     h264pred

  2004.     h264qpel

  2005.     hpeldsp

  2006.     huffman

  2007.     huffyuvdsp

  2008.     huffyuvencdsp

  2009.     idctdsp

  2010.     iirfilter

  2011.     imdct15

  2012.     intrax8

  2013.     ividsp

  2014.     jpegtables

  2015.     libx262

  2016.     lgplv3

  2017.     llauddsp

  2018.     llviddsp

  2019.     lpc

  2020.     lzf

  2021.     me_cmp

  2022.     mpeg_er

  2023.     mpegaudio

  2024.     mpegaudiodsp

  2025.     mpegvideo

  2026.     mpegvideoenc

  2027.     mss34dsp

  2028.     pixblockdsp

  2029.     qpeldsp

  2030.     qsv

  2031.     qsvdec

  2032.     qsvenc

  2033.     rangecoder

  2034.     riffdec

  2035.     riffenc

  2036.     rtpdec

  2037.     rtpenc_chain

  2038.     rv34dsp

  2039.     sinewin

  2040.     snappy

  2041.     startcode

  2042.     texturedsp

  2043.     texturedspenc

  2044.     tpeldsp

  2045.     videodsp

  2046.     vp3dsp

  2047.     vp56dsp

  2048.     vp8dsp

  2049.     wma_freqs

  2050.     wmv2dsp

  2051. "

  2052. 

  2053. CMDLINE_SELECT="

  2054.     $ARCH_EXT_LIST

  2055.     $CONFIG_LIST

  2056.     $HAVE_LIST_CMDLINE

  2057.     $THREADS_LIST

  2058.     asm

  2059.     cross_compile

  2060.     debug

  2061.     extra_warnings

  2062.     logging

  2063.     lto

  2064.     optimizations

  2065.     rpath

  2066.     stripping

  2067. "

  2068. 

  2069. PATHS_LIST="

  2070.     bindir

  2071.     datadir

  2072.     docdir

  2073.     incdir

  2074.     libdir

  2075.     mandir

  2076.     pkgconfigdir

  2077.     prefix

  2078.     shlibdir

  2079. "

  2080. 

  2081. CMDLINE_SET="

  2082.     $PATHS_LIST

  2083.     ar

  2084.     arch

  2085.     as

  2086.     assert_level

  2087.     build_suffix

  2088.     cc

  2089.     objcc

  2090.     cpu

  2091.     cross_prefix

  2092.     custom_allocator

  2093.     cxx

  2094.     dep_cc

  2095.     doxygen

  2096.     env

  2097.     extra_version

  2098.     gas

  2099.     host_cc

  2100.     host_cflags

  2101.     host_ld

  2102.     host_ldflags

  2103.     host_libs

  2104.     host_os

  2105.     install

  2106.     ld

  2107.     logfile

  2108.     malloc_prefix

  2109.     nm

  2110.     optflags

  2111.     pkg_config

  2112.     pkg_config_flags

  2113.     progs_suffix

  2114.     random_seed

  2115.     ranlib

  2116.     samples

  2117.     strip

  2118.     sws_max_filter_size

  2119.     sysinclude

  2120.     sysroot

  2121.     target_exec

  2122.     target_os

  2123.     target_path

  2124.     target_samples

  2125.     tempprefix

  2126.     toolchain

  2127.     valgrind

  2128.     yasmexe

  2129. "

  2130. 

  2131. CMDLINE_APPEND="

  2132.     extra_cflags

  2133.     extra_cxxflags

  2134.     extra_objcflags

  2135.     host_cppflags

  2136. "

  2137. 

  2138. # code dependency declarations

  2139. 

  2140. # architecture extensions

  2141. 

  2142. armv5te_deps="arm"

  2143. armv6_deps="arm"

  2144. armv6t2_deps="arm"

  2145. armv8_deps="aarch64"

  2146. neon_deps_any="aarch64 arm"

  2147. intrinsics_neon_deps="neon"

  2148. vfp_deps_any="aarch64 arm"

  2149. vfpv3_deps="vfp"

  2150. setend_deps="arm"

  2151. 

  2152. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2153. 

  2154. mipsfpu_deps="mips"

  2155. mipsdsp_deps="mips"

  2156. mipsdspr2_deps="mips"

  2157. mips32r2_deps="mips"

  2158. mips32r6_deps="mips"

  2159. mips64r2_deps="mips"

  2160. mips64r6_deps="mips"

  2161. msa_deps="mips"

  2162. mmi_deps="mips"

  2163. 

  2164. altivec_deps="ppc"

  2165. dcbzl_deps="ppc"

  2166. ldbrx_deps="ppc"

  2167. ppc4xx_deps="ppc"

  2168. vsx_deps="altivec"

  2169. power8_deps="vsx"

  2170. 

  2171. cpunop_deps="i686"

  2172. x86_64_select="i686"

  2173. x86_64_suggest="fast_cmov"

  2174. 

  2175. amd3dnow_deps="mmx"

  2176. amd3dnowext_deps="amd3dnow"

  2177. i686_deps="x86"

  2178. mmx_deps="x86"

  2179. mmxext_deps="mmx"

  2180. sse_deps="mmxext"

  2181. sse2_deps="sse"

  2182. sse3_deps="sse2"

  2183. ssse3_deps="sse3"

  2184. sse4_deps="ssse3"

  2185. sse42_deps="sse4"

  2186. aesni_deps="sse42"

  2187. avx_deps="sse42"

  2188. xop_deps="avx"

  2189. fma3_deps="avx"

  2190. fma4_deps="avx"

  2191. avx2_deps="avx"

  2192. 

  2193. mmx_external_deps="yasm"

  2194. mmx_inline_deps="inline_asm"

  2195. mmx_suggest="mmx_external mmx_inline"

  2196. 

  2197. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2198.     eval dep=\$${ext}_deps

  2199.     eval ${ext}_external_deps='"${dep}_external"'

  2200.     eval ${ext}_inline_deps='"${dep}_inline"'

  2201.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2202. done

  2203. 

  2204. aligned_stack_if_any="aarch64 ppc x86"

  2205. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2206. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2207. fast_unaligned_if_any="aarch64 ppc x86"

  2208. simd_align_16_if_any="altivec neon sse"

  2209. 

  2210. # system capabilities

  2211. symver_if_any="symver_asm_label symver_gnu_asm"

  2212. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2213. 

  2214. # threading support

  2215. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2216. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2217. atomics_win32_if="MemoryBarrier"

  2218. atomics_native_if_any="$ATOMICS_LIST"

  2219. w32threads_deps="atomics_native"

  2220. threads_if_any="$THREADS_LIST"

  2221. 

  2222. # subsystems

  2223. dct_select="rdft"

  2224. dirac_parse_select="golomb"

  2225. error_resilience_select="me_cmp"

  2226. faandct_deps="faan fdctdsp"

  2227. faanidct_deps="faan idctdsp"

  2228. frame_thread_encoder_deps="encoders threads"

  2229. intrax8_select="error_resilience"

  2230. mdct_select="fft"

  2231. rdft_select="fft"

  2232. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2233. mpeg_er_select="error_resilience"

  2234. mpegaudio_select="mpegaudiodsp"

  2235. mpegaudiodsp_select="dct"

  2236. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2237. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2238. qsvdec_select="qsv"

  2239. qsvenc_select="qsv"

  2240. 

  2241. # decoders / encoders

  2242. aac_decoder_select="imdct15 mdct sinewin"

  2243. aac_fixed_decoder_select="mdct sinewin"

  2244. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2245. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2246. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2247. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2248. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2249. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2250. adpcm_g722_decoder_select="g722dsp"

  2251. adpcm_g722_encoder_select="g722dsp"

  2252. aic_decoder_select="golomb idctdsp"

  2253. alac_encoder_select="lpc"

  2254. als_decoder_select="bswapdsp"

  2255. amrnb_decoder_select="lsp"

  2256. amrwb_decoder_select="lsp"

  2257. amv_decoder_select="sp5x_decoder exif"

  2258. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2259. ape_decoder_select="bswapdsp llauddsp"

  2260. apng_decoder_select="zlib"

  2261. apng_encoder_select="huffyuvencdsp zlib"

  2262. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2263. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2264. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2265. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2266. atrac1_decoder_select="mdct sinewin"

  2267. atrac3_decoder_select="mdct"

  2268. atrac3p_decoder_select="mdct sinewin"

  2269. avrn_decoder_select="exif jpegtables"

  2270. bink_decoder_select="blockdsp hpeldsp"

  2271. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2272. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2273. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2274. cllc_decoder_select="bswapdsp"

  2275. comfortnoise_encoder_select="lpc"

  2276. cook_decoder_select="audiodsp mdct sinewin"

  2277. cscd_decoder_select="lzo"

  2278. cscd_decoder_suggest="zlib"

  2279. dca_decoder_select="fmtconvert mdct"

  2280. dds_decoder_select="texturedsp"

  2281. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2282. dnxhd_decoder_select="blockdsp idctdsp"

  2283. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2284. dvvideo_decoder_select="dvprofile idctdsp"

  2285. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2286. dxa_decoder_select="zlib"

  2287. dxv_decoder_select="lzf texturedsp"

  2288. eac3_decoder_select="ac3_decoder"

  2289. eac3_encoder_select="ac3_encoder"

  2290. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2291. eatgq_decoder_select="aandcttables"

  2292. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"

  2293. exr_decoder_select="zlib"

  2294. ffv1_decoder_select="golomb rangecoder"

  2295. ffv1_encoder_select="rangecoder"

  2296. ffvhuff_decoder_select="huffyuv_decoder"

  2297. ffvhuff_encoder_select="huffyuv_encoder"

  2298. fic_decoder_select="golomb"

  2299. flac_decoder_select="flacdsp golomb"

  2300. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2301. flashsv_decoder_select="zlib"

  2302. flashsv_encoder_select="zlib"

  2303. flashsv2_encoder_select="zlib"

  2304. flashsv2_decoder_select="zlib"

  2305. flv_decoder_select="h263_decoder"

  2306. flv_encoder_select="h263_encoder"

  2307. fourxm_decoder_select="blockdsp bswapdsp"

  2308. fraps_decoder_select="bswapdsp huffman"

  2309. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2310. g729_decoder_select="audiodsp"

  2311. h261_decoder_select="mpegvideo"

  2312. h261_encoder_select="aandcttables mpegvideoenc"

  2313. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2314. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2315. h263i_decoder_select="h263_decoder"

  2316. h263p_decoder_select="h263_decoder"

  2317. h263p_encoder_select="h263_encoder"

  2318. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"

  2319. h264_decoder_suggest="error_resilience"

  2320. h264_qsv_decoder_deps="libmfx"

  2321. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2322. h264_qsv_encoder_deps="libmfx"

  2323. h264_qsv_encoder_select="qsvenc"

  2324. hap_decoder_select="snappy texturedsp"

  2325. hap_encoder_deps="libsnappy"

  2326. hap_encoder_select="texturedspenc"

  2327. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2328. hevc_qsv_encoder_deps="libmfx"

  2329. hevc_qsv_decoder_deps="libmfx"

  2330. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2331. hevc_qsv_encoder_select="qsvenc"

  2332. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2333. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2334. iac_decoder_select="imc_decoder"

  2335. imc_decoder_select="bswapdsp fft mdct sinewin"

  2336. indeo3_decoder_select="hpeldsp"

  2337. indeo4_decoder_select="ividsp"

  2338. indeo5_decoder_select="ividsp"

  2339. interplay_video_decoder_select="hpeldsp"

  2340. jpegls_decoder_select="golomb mjpeg_decoder"

  2341. jpegls_encoder_select="golomb"

  2342. jv_decoder_select="blockdsp"

  2343. lagarith_decoder_select="huffyuvdsp"

  2344. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2345. loco_decoder_select="golomb"

  2346. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2347. metasound_decoder_select="lsp mdct sinewin"

  2348. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2349. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2350. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2351. mjpegb_decoder_select="mjpeg_decoder"

  2352. mlp_decoder_select="mlp_parser"

  2353. motionpixels_decoder_select="bswapdsp"

  2354. mp1_decoder_select="mpegaudio"

  2355. mp1float_decoder_select="mpegaudio"

  2356. mp2_decoder_select="mpegaudio"

  2357. mp2float_decoder_select="mpegaudio"

  2358. mp3_decoder_select="mpegaudio"

  2359. mp3adu_decoder_select="mpegaudio"

  2360. mp3adufloat_decoder_select="mpegaudio"

  2361. mp3float_decoder_select="mpegaudio"

  2362. mp3on4_decoder_select="mpegaudio"

  2363. mp3on4float_decoder_select="mpegaudio"

  2364. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2365. mpc8_decoder_select="mpegaudiodsp"

  2366. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2367. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2368. mpegvideo_decoder_select="mpegvideo"

  2369. mpeg1video_decoder_select="mpegvideo"

  2370. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2371. mpeg2video_decoder_select="mpegvideo"

  2372. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2373. mpeg2_qsv_decoder_deps="libmfx"

  2374. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2375. mpeg2_qsv_encoder_deps="libmfx"

  2376. mpeg2_qsv_encoder_select="qsvenc"

  2377. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2378. mpeg4_encoder_select="h263_encoder"

  2379. msa1_decoder_select="mss34dsp"

  2380. msmpeg4v1_decoder_select="h263_decoder"

  2381. msmpeg4v2_decoder_select="h263_decoder"

  2382. msmpeg4v2_encoder_select="h263_encoder"

  2383. msmpeg4v3_decoder_select="h263_decoder"

  2384. msmpeg4v3_encoder_select="h263_encoder"

  2385. mss2_decoder_select="vc1_decoder"

  2386. mts2_decoder_select="mss34dsp"

  2387. mxpeg_decoder_select="mjpeg_decoder"

  2388. nellymoser_decoder_select="mdct sinewin"

  2389. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2390. nuv_decoder_select="idctdsp lzo"

  2391. on2avc_decoder_select="mdct"

  2392. opus_decoder_deps="swresample"

  2393. opus_decoder_select="imdct15"

  2394. png_decoder_select="zlib"

  2395. png_encoder_select="huffyuvencdsp zlib"

  2396. prores_decoder_select="blockdsp idctdsp"

  2397. prores_encoder_select="fdctdsp"

  2398. qcelp_decoder_select="lsp"

  2399. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2400. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2401. ra_144_decoder_select="audiodsp"

  2402. ralf_decoder_select="golomb"

  2403. rawvideo_decoder_select="bswapdsp"

  2404. rscc_decoder_select="zlib"

  2405. rtjpeg_decoder_select="me_cmp"

  2406. rv10_decoder_select="h263_decoder"

  2407. rv10_encoder_select="h263_encoder"

  2408. rv20_decoder_select="h263_decoder"

  2409. rv20_encoder_select="h263_encoder"

  2410. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2411. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2412. screenpresso_decoder_select="zlib"

  2413. shorten_decoder_select="golomb"

  2414. sipr_decoder_select="lsp"

  2415. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2416. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2417. sonic_decoder_select="golomb rangecoder"

  2418. sonic_encoder_select="golomb rangecoder"

  2419. sonic_ls_encoder_select="golomb rangecoder"

  2420. sp5x_decoder_select="mjpeg_decoder"

  2421. svq1_decoder_select="hpeldsp"

  2422. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2423. svq3_decoder_select="h264_decoder hpeldsp tpeldsp"

  2424. svq3_decoder_suggest="zlib"

  2425. tak_decoder_select="audiodsp"

  2426. tdsc_decoder_select="zlib mjpeg_decoder"

  2427. theora_decoder_select="vp3_decoder"

  2428. thp_decoder_select="mjpeg_decoder"

  2429. tiff_decoder_suggest="zlib lzma"

  2430. tiff_encoder_suggest="zlib"

  2431. truehd_decoder_select="mlp_parser"

  2432. truemotion2_decoder_select="bswapdsp"

  2433. truespeech_decoder_select="bswapdsp"

  2434. tscc_decoder_select="zlib"

  2435. twinvq_decoder_select="mdct lsp sinewin"

  2436. txd_decoder_select="texturedsp"

  2437. utvideo_decoder_select="bswapdsp"

  2438. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2439. vble_decoder_select="huffyuvdsp"

  2440. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"

  2441. vc1image_decoder_select="vc1_decoder"

  2442. vc1_qsv_decoder_deps="libmfx"

  2443. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2444. vorbis_decoder_select="mdct"

  2445. vorbis_encoder_select="mdct"

  2446. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2447. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2448. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2449. vp6a_decoder_select="vp6_decoder"

  2450. vp6f_decoder_select="vp6_decoder"

  2451. vp7_decoder_select="h264pred videodsp vp8dsp"

  2452. vp8_decoder_select="h264pred videodsp vp8dsp"

  2453. vp9_decoder_select="videodsp vp9_parser"

  2454. webp_decoder_select="vp8_decoder"

  2455. wmalossless_decoder_select="llauddsp"

  2456. wmapro_decoder_select="mdct sinewin wma_freqs"

  2457. wmav1_decoder_select="mdct sinewin wma_freqs"

  2458. wmav1_encoder_select="mdct sinewin wma_freqs"

  2459. wmav2_decoder_select="mdct sinewin wma_freqs"

  2460. wmav2_encoder_select="mdct sinewin wma_freqs"

  2461. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2462. wmv1_decoder_select="h263_decoder"

  2463. wmv1_encoder_select="h263_encoder"

  2464. wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2465. wmv2_encoder_select="h263_encoder wmv2dsp"

  2466. wmv3_decoder_select="vc1_decoder"

  2467. wmv3image_decoder_select="wmv3_decoder"

  2468. zerocodec_decoder_select="zlib"

  2469. zlib_decoder_select="zlib"

  2470. zlib_encoder_select="zlib"

  2471. zmbv_decoder_select="zlib"

  2472. zmbv_encoder_select="zlib"

  2473. 

  2474. # hardware accelerators

  2475. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2476. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2477. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2478. vaapi_deps="va_va_h"

  2479. vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"

  2480. vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"

  2481. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2482. videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"

  2483. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"

  2484. xvmc_deps="X11_extensions_XvMClib_h"

  2485. 

  2486. h263_vaapi_hwaccel_deps="vaapi"

  2487. h263_vaapi_hwaccel_select="h263_decoder"

  2488. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2489. h263_videotoolbox_hwaccel_select="h263_decoder"

  2490. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2491. h264_d3d11va_hwaccel_deps="d3d11va"

  2492. h264_d3d11va_hwaccel_select="h264_decoder"

  2493. h264_dxva2_hwaccel_deps="dxva2"

  2494. h264_dxva2_hwaccel_select="h264_decoder"

  2495. h264_mmal_decoder_deps="mmal"

  2496. h264_mmal_hwaccel_deps="mmal"

  2497. h264_mmal_decoder_select="h264_decoder"

  2498. h264_mmal_encoder_deps="mmal"

  2499. h264_qsv_hwaccel_deps="libmfx"

  2500. h264_vaapi_hwaccel_deps="vaapi"

  2501. h264_vaapi_hwaccel_select="h264_decoder"

  2502. h264_vda_decoder_deps="vda"

  2503. h264_vda_decoder_select="h264_decoder"

  2504. h264_vda_hwaccel_deps="vda"

  2505. h264_vda_hwaccel_select="h264_decoder"

  2506. h264_vda_old_hwaccel_deps="vda"

  2507. h264_vda_old_hwaccel_select="h264_decoder"

  2508. h264_vdpau_decoder_deps="vdpau"

  2509. h264_vdpau_decoder_select="h264_decoder"

  2510. h264_vdpau_hwaccel_deps="vdpau"

  2511. h264_vdpau_hwaccel_select="h264_decoder"

  2512. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2513. h264_videotoolbox_hwaccel_select="h264_decoder"

  2514. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2515. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2516. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2517. hevc_dxva2_hwaccel_select="hevc_decoder"

  2518. hevc_qsv_hwaccel_deps="libmfx"

  2519. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2520. hevc_vaapi_hwaccel_select="hevc_decoder"

  2521. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2522. hevc_vdpau_hwaccel_select="hevc_decoder"

  2523. mpeg_vdpau_decoder_deps="vdpau"

  2524. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2525. mpeg_xvmc_hwaccel_deps="xvmc"

  2526. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2527. mpeg1_vdpau_decoder_deps="vdpau"

  2528. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2529. mpeg1_vdpau_hwaccel_deps="vdpau"

  2530. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2531. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2532. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2533. mpeg1_xvmc_hwaccel_deps="xvmc"

  2534. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2535. mpeg2_crystalhd_decoder_select="crystalhd"

  2536. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2537. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2538. mpeg2_dxva2_hwaccel_deps="dxva2"

  2539. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2540. mpeg2_mmal_decoder_deps="mmal"

  2541. mpeg2_mmal_hwaccel_deps="mmal"

  2542. mpeg2_mmal_decoder_select="mpeg2video_decoder"

  2543. mpeg2_qsv_hwaccel_deps="libmfx"

  2544. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2545. mpeg2_vaapi_hwaccel_deps="vaapi"

  2546. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2547. mpeg2_vdpau_hwaccel_deps="vdpau"

  2548. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2549. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2550. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2551. mpeg2_xvmc_hwaccel_deps="xvmc"

  2552. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2553. mpeg4_crystalhd_decoder_select="crystalhd"

  2554. mpeg4_vaapi_hwaccel_deps="vaapi"

  2555. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2556. mpeg4_vdpau_decoder_deps="vdpau"

  2557. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2558. mpeg4_vdpau_hwaccel_deps="vdpau"

  2559. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2560. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2561. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2562. msmpeg4_crystalhd_decoder_select="crystalhd"

  2563. vc1_crystalhd_decoder_select="crystalhd"

  2564. vc1_d3d11va_hwaccel_deps="d3d11va"

  2565. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2566. vc1_dxva2_hwaccel_deps="dxva2"

  2567. vc1_dxva2_hwaccel_select="vc1_decoder"

  2568. vc1_vaapi_hwaccel_deps="vaapi"

  2569. vc1_vaapi_hwaccel_select="vc1_decoder"

  2570. vc1_vdpau_decoder_deps="vdpau"

  2571. vc1_vdpau_decoder_select="vc1_decoder"

  2572. vc1_vdpau_hwaccel_deps="vdpau"

  2573. vc1_vdpau_hwaccel_select="vc1_decoder"

  2574. vc1_mmal_decoder_deps="mmal"

  2575. vc1_mmal_hwaccel_deps="mmal"

  2576. vc1_mmal_decoder_select="vc1_decoder"

  2577. vc1_qsv_hwaccel_deps="libmfx"

  2578. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2579. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2580. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2581. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2582. vp9_dxva2_hwaccel_select="vp9_decoder"

  2583. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"

  2584. vp9_vaapi_hwaccel_select="vp9_decoder"

  2585. wmv3_crystalhd_decoder_select="crystalhd"

  2586. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2587. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2588. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2589. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2590. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2591. 

  2592. # parsers

  2593. h264_parser_select="h264_decoder"

  2594. hevc_parser_select="golomb"

  2595. mpegvideo_parser_select="mpegvideo"

  2596. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2597. vc1_parser_select="mpegvideo startcode vc1_decoder"

  2598. 

  2599. # bitstream_filters

  2600. mjpeg2jpeg_bsf_select="jpegtables"

  2601. 

  2602. # external libraries

  2603. chromaprint_muxer_deps="chromaprint"

  2604. libaacplus_encoder_deps="libaacplus"

  2605. libcelt_decoder_deps="libcelt"

  2606. libdcadec_decoder_deps="libdcadec"

  2607. libfaac_encoder_deps="libfaac"

  2608. libfaac_encoder_select="audio_frame_queue"

  2609. libfdk_aac_decoder_deps="libfdk_aac"

  2610. libfdk_aac_encoder_deps="libfdk_aac"

  2611. libfdk_aac_encoder_select="audio_frame_queue"

  2612. libgme_demuxer_deps="libgme"

  2613. libgsm_decoder_deps="libgsm"

  2614. libgsm_encoder_deps="libgsm"

  2615. libgsm_ms_decoder_deps="libgsm"

  2616. libgsm_ms_encoder_deps="libgsm"

  2617. libilbc_decoder_deps="libilbc"

  2618. libilbc_encoder_deps="libilbc"

  2619. libkvazaar_encoder_deps="libkvazaar"

  2620. libmodplug_demuxer_deps="libmodplug"

  2621. libmp3lame_encoder_deps="libmp3lame"

  2622. libmp3lame_encoder_select="audio_frame_queue"

  2623. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2624. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2625. libopencore_amrnb_encoder_select="audio_frame_queue"

  2626. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2627. libopenh264_encoder_deps="libopenh264"

  2628. libopenjpeg_decoder_deps="libopenjpeg"

  2629. libopenjpeg_encoder_deps="libopenjpeg"

  2630. libopus_decoder_deps="libopus"

  2631. libopus_encoder_deps="libopus"

  2632. libopus_encoder_select="audio_frame_queue"

  2633. libquvi_demuxer_deps="libquvi"

  2634. libschroedinger_decoder_deps="libschroedinger"

  2635. libschroedinger_encoder_deps="libschroedinger"

  2636. libshine_encoder_deps="libshine"

  2637. libshine_encoder_select="audio_frame_queue"

  2638. libspeex_decoder_deps="libspeex"

  2639. libspeex_encoder_deps="libspeex"

  2640. libspeex_encoder_select="audio_frame_queue"

  2641. libtheora_encoder_deps="libtheora"

  2642. libtwolame_encoder_deps="libtwolame"

  2643. libvo_aacenc_encoder_deps="libvo_aacenc"

  2644. libvo_aacenc_encoder_select="audio_frame_queue"

  2645. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2646. libvorbis_decoder_deps="libvorbis"

  2647. libvorbis_encoder_deps="libvorbis"

  2648. libvorbis_encoder_select="audio_frame_queue"

  2649. libvpx_vp8_decoder_deps="libvpx"

  2650. libvpx_vp8_encoder_deps="libvpx"

  2651. libvpx_vp9_decoder_deps="libvpx"

  2652. libvpx_vp9_encoder_deps="libvpx"

  2653. libwavpack_encoder_deps="libwavpack"

  2654. libwebp_encoder_deps="libwebp"

  2655. libwebp_anim_encoder_deps="libwebp"

  2656. libx262_encoder_deps="libx262"

  2657. libx264_encoder_deps="libx264"

  2658. libx264rgb_encoder_deps="libx264"

  2659. libx264rgb_encoder_select="libx264_encoder"

  2660. libx265_encoder_deps="libx265"

  2661. libxavs_encoder_deps="libxavs"

  2662. libxvid_encoder_deps="libxvid"

  2663. libutvideo_decoder_deps="libutvideo"

  2664. libutvideo_encoder_deps="libutvideo"

  2665. libzvbi_teletext_decoder_deps="libzvbi"

  2666. nvenc_encoder_deps="nvenc"

  2667. nvenc_h264_encoder_deps="nvenc"

  2668. nvenc_hevc_encoder_deps="nvenc"

  2669. 

  2670. # demuxers / muxers

  2671. ac3_demuxer_select="ac3_parser"

  2672. asf_demuxer_select="riffdec"

  2673. asf_o_demuxer_select="riffdec"

  2674. asf_muxer_select="riffenc"

  2675. asf_stream_muxer_select="asf_muxer"

  2676. avi_demuxer_select="riffdec exif"

  2677. avi_muxer_select="riffenc"

  2678. avisynth_demuxer_deps="avisynth"

  2679. avisynth_demuxer_select="riffdec"

  2680. caf_demuxer_select="riffdec"

  2681. dash_muxer_select="mp4_muxer"

  2682. dirac_demuxer_select="dirac_parser"

  2683. dts_demuxer_select="dca_parser"

  2684. dtshd_demuxer_select="dca_parser"

  2685. dv_demuxer_select="dvprofile"

  2686. dv_muxer_select="dvprofile"

  2687. dxa_demuxer_select="riffdec"

  2688. eac3_demuxer_select="ac3_parser"

  2689. f4v_muxer_select="mov_muxer"

  2690. flac_demuxer_select="flac_parser"

  2691. hds_muxer_select="flv_muxer"

  2692. hls_muxer_select="mpegts_muxer"

  2693. image2_alias_pix_demuxer_select="image2_demuxer"

  2694. image2_brender_pix_demuxer_select="image2_demuxer"

  2695. ipod_muxer_select="mov_muxer"

  2696. ismv_muxer_select="mov_muxer"

  2697. libnut_demuxer_deps="libnut"

  2698. libnut_muxer_deps="libnut"

  2699. matroska_audio_muxer_select="matroska_muxer"

  2700. matroska_demuxer_select="riffdec"

  2701. matroska_demuxer_suggest="bzlib lzo zlib"

  2702. matroska_muxer_select="riffenc"

  2703. mmf_muxer_select="riffenc"

  2704. mov_demuxer_select="riffdec"

  2705. mov_demuxer_suggest="zlib"

  2706. mov_muxer_select="riffenc rtpenc_chain"

  2707. mp3_demuxer_select="mpegaudio_parser"

  2708. mp4_muxer_select="mov_muxer"

  2709. mpegts_muxer_select="adts_muxer latm_muxer"

  2710. mpegtsraw_demuxer_select="mpegts_demuxer"

  2711. mxf_d10_muxer_select="mxf_muxer"

  2712. mxf_opatom_muxer_select="mxf_muxer"

  2713. nut_muxer_select="riffenc"

  2714. nuv_demuxer_select="riffdec"

  2715. oga_muxer_select="ogg_muxer"

  2716. ogg_demuxer_select="dirac_parse"

  2717. opus_muxer_select="ogg_muxer"

  2718. psp_muxer_select="mov_muxer"

  2719. rtp_demuxer_select="sdp_demuxer"

  2720. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"

  2721. rtsp_demuxer_select="http_protocol rtpdec"

  2722. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2723. sap_demuxer_select="sdp_demuxer"

  2724. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2725. sdp_demuxer_select="rtpdec"

  2726. smoothstreaming_muxer_select="ismv_muxer"

  2727. spdif_muxer_select="aac_parser"

  2728. spx_muxer_select="ogg_muxer"

  2729. tak_demuxer_select="tak_parser"

  2730. tg2_muxer_select="mov_muxer"

  2731. tgp_muxer_select="mov_muxer"

  2732. vobsub_demuxer_select="mpegps_demuxer"

  2733. w64_demuxer_select="wav_demuxer"

  2734. w64_muxer_select="wav_muxer"

  2735. wav_demuxer_select="riffdec"

  2736. wav_muxer_select="riffenc"

  2737. webm_muxer_select="riffenc"

  2738. wtv_demuxer_select="riffdec"

  2739. wtv_muxer_select="riffenc"

  2740. xmv_demuxer_select="riffdec"

  2741. xwma_demuxer_select="riffdec"

  2742. 

  2743. # indevs / outdevs

  2744. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2745. alsa_outdev_deps="alsa_asoundlib_h"

  2746. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2747. avfoundation_indev_select="avfoundation"

  2748. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2749. caca_outdev_deps="libcaca"

  2750. decklink_outdev_deps="decklink pthreads"

  2751. decklink_outdev_extralibs="-lstdc++"

  2752. decklink_indev_deps="decklink pthreads"

  2753. decklink_indev_extralibs="-lstdc++"

  2754. dshow_indev_deps="IBaseFilter"

  2755. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2756. dv1394_indev_deps="dv1394"

  2757. dv1394_indev_select="dv_demuxer"

  2758. fbdev_indev_deps="linux_fb_h"

  2759. fbdev_outdev_deps="linux_fb_h"

  2760. gdigrab_indev_deps="CreateDIBSection"

  2761. gdigrab_indev_extralibs="-lgdi32"

  2762. gdigrab_indev_select="bmp_decoder"

  2763. iec61883_indev_deps="libiec61883"

  2764. jack_indev_deps="jack_jack_h sem_timedwait"

  2765. lavfi_indev_deps="avfilter"

  2766. libcdio_indev_deps="libcdio"

  2767. libdc1394_indev_deps="libdc1394"

  2768. libv4l2_indev_deps="libv4l2"

  2769. openal_indev_deps="openal"

  2770. opengl_outdev_deps="opengl"

  2771. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2772. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2773. pulse_indev_deps="libpulse"

  2774. pulse_outdev_deps="libpulse"

  2775. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2776. qtkit_indev_select="qtkit"

  2777. sdl_outdev_deps="sdl"

  2778. sndio_indev_deps="sndio_h"

  2779. sndio_outdev_deps="sndio_h"

  2780. v4l_indev_deps="linux_videodev_h"

  2781. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2782. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2783. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2784. vfwcap_indev_extralibs="-lavicap32"

  2785. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2786. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2787. x11grab_indev_deps="x11grab"

  2788. x11grab_xcb_indev_deps="libxcb"

  2789. 

  2790. # protocols

  2791. async_protocol_deps="threads"

  2792. bluray_protocol_deps="libbluray"

  2793. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2794. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2795. ffrtmpcrypt_protocol_select="tcp_protocol"

  2796. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2797. ffrtmphttp_protocol_select="http_protocol"

  2798. ftp_protocol_select="tcp_protocol"

  2799. gopher_protocol_select="network"

  2800. http_protocol_select="tcp_protocol"

  2801. httpproxy_protocol_select="tcp_protocol"

  2802. https_protocol_select="tls_protocol"

  2803. icecast_protocol_select="http_protocol"

  2804. librtmp_protocol_deps="librtmp"

  2805. librtmpe_protocol_deps="librtmp"

  2806. librtmps_protocol_deps="librtmp"

  2807. librtmpt_protocol_deps="librtmp"

  2808. librtmpte_protocol_deps="librtmp"

  2809. libsmbclient_protocol_deps="libsmbclient gplv3"

  2810. libssh_protocol_deps="libssh"

  2811. mmsh_protocol_select="http_protocol"

  2812. mmst_protocol_select="network"

  2813. rtmp_protocol_deps="!librtmp_protocol"

  2814. rtmp_protocol_select="tcp_protocol"

  2815. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2816. rtmps_protocol_deps="!librtmp_protocol"

  2817. rtmps_protocol_select="tls_protocol"

  2818. rtmpt_protocol_select="ffrtmphttp_protocol"

  2819. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2820. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2821. rtp_protocol_select="udp_protocol"

  2822. sctp_protocol_deps="struct_sctp_event_subscribe"

  2823. sctp_protocol_select="network"

  2824. srtp_protocol_select="rtp_protocol"

  2825. tcp_protocol_select="network"

  2826. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  2827. tls_gnutls_protocol_select="tcp_protocol"

  2828. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  2829. tls_openssl_protocol_select="tcp_protocol"

  2830. tls_schannel_protocol_deps="schannel"

  2831. tls_schannel_protocol_select="tcp_protocol"

  2832. tls_securetransport_protocol_deps="securetransport"

  2833. tls_securetransport_protocol_select="tcp_protocol"

  2834. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  2835. udp_protocol_select="network"

  2836. udplite_protocol_select="network"

  2837. unix_protocol_deps="sys_un_h"

  2838. unix_protocol_select="network"

  2839. 

  2840. # filters

  2841. amovie_filter_deps="avcodec avformat"

  2842. aresample_filter_deps="swresample"

  2843. ass_filter_deps="libass"

  2844. asyncts_filter_deps="avresample"

  2845. atempo_filter_deps="avcodec"

  2846. atempo_filter_select="rdft"

  2847. azmq_filter_deps="libzmq"

  2848. blackframe_filter_deps="gpl"

  2849. boxblur_filter_deps="gpl"

  2850. bs2b_filter_deps="libbs2b"

  2851. colormatrix_filter_deps="gpl"

  2852. cover_rect_filter_deps="avcodec avformat gpl"

  2853. cropdetect_filter_deps="gpl"

  2854. delogo_filter_deps="gpl"

  2855. deshake_filter_select="pixelutils"

  2856. drawtext_filter_deps="libfreetype"

  2857. ebur128_filter_deps="gpl"

  2858. eq_filter_deps="gpl"

  2859. fftfilt_filter_deps="avcodec"

  2860. fftfilt_filter_select="rdft"

  2861. flite_filter_deps="libflite"

  2862. find_rect_filter_deps="avcodec avformat gpl"

  2863. frei0r_filter_deps="frei0r dlopen"

  2864. frei0r_src_filter_deps="frei0r dlopen"

  2865. fspp_filter_deps="gpl"

  2866. geq_filter_deps="gpl"

  2867. histeq_filter_deps="gpl"

  2868. hqdn3d_filter_deps="gpl"

  2869. interlace_filter_deps="gpl"

  2870. kerndeint_filter_deps="gpl"

  2871. ladspa_filter_deps="ladspa dlopen"

  2872. mcdeint_filter_deps="avcodec gpl"

  2873. movie_filter_deps="avcodec avformat"

  2874. mpdecimate_filter_deps="gpl"

  2875. mpdecimate_filter_select="pixelutils"

  2876. mptestsrc_filter_deps="gpl"

  2877. negate_filter_deps="lut_filter"

  2878. perspective_filter_deps="gpl"

  2879. pp7_filter_deps="gpl"

  2880. ocr_filter_deps="libtesseract"

  2881. ocv_filter_deps="libopencv"

  2882. owdenoise_filter_deps="gpl"

  2883. pan_filter_deps="swresample"

  2884. phase_filter_deps="gpl"

  2885. pp_filter_deps="gpl postproc"

  2886. pullup_filter_deps="gpl"

  2887. removelogo_filter_deps="avcodec avformat swscale"

  2888. repeatfields_filter_deps="gpl"

  2889. resample_filter_deps="avresample"

  2890. rubberband_filter_deps="librubberband"

  2891. sab_filter_deps="gpl swscale"

  2892. scale_filter_deps="swscale"

  2893. scale2ref_filter_deps="swscale"

  2894. select_filter_select="pixelutils"

  2895. smartblur_filter_deps="gpl swscale"

  2896. showcqt_filter_deps="avcodec avformat swscale"

  2897. showcqt_filter_select="fft"

  2898. showfreqs_filter_deps="avcodec"

  2899. showfreqs_filter_select="fft"

  2900. showspectrum_filter_deps="avcodec"

  2901. showspectrum_filter_select="fft"

  2902. showspectrumpic_filter_deps="avcodec"

  2903. showspectrumpic_filter_select="fft"

  2904. sofalizer_filter_deps="netcdf avcodec"

  2905. sofalizer_filter_select="fft"

  2906. spectrumsynth_filter_deps="avcodec"

  2907. spectrumsynth_filter_select="fft"

  2908. spp_filter_deps="gpl avcodec"

  2909. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  2910. stereo3d_filter_deps="gpl"

  2911. subtitles_filter_deps="avformat avcodec libass"

  2912. super2xsai_filter_deps="gpl"

  2913. tinterlace_filter_deps="gpl"

  2914. vidstabdetect_filter_deps="libvidstab"

  2915. vidstabtransform_filter_deps="libvidstab"

  2916. pixfmts_super2xsai_test_deps="super2xsai_filter"

  2917. tinterlace_merge_test_deps="tinterlace_filter"

  2918. tinterlace_pad_test_deps="tinterlace_filter"

  2919. uspp_filter_deps="gpl avcodec"

  2920. zmq_filter_deps="libzmq"

  2921. zoompan_filter_deps="swscale"

  2922. zscale_filter_deps="libzimg"

  2923. 

  2924. # examples

  2925. avio_reading="avformat avcodec avutil"

  2926. avio_dir_cmd="avformat avutil"

  2927. avcodec_example_deps="avcodec avutil"

  2928. decoding_encoding_example_deps="avcodec avformat avutil"

  2929. demuxing_decoding_example_deps="avcodec avformat avutil"

  2930. extract_mvs_example_deps="avcodec avformat avutil"

  2931. filter_audio_example_deps="avfilter avutil"

  2932. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  2933. filtering_video_example_deps="avfilter avcodec avformat avutil"

  2934. metadata_example_deps="avformat avutil"

  2935. muxing_example_deps="avcodec avformat avutil swscale"

  2936. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  2937. remuxing_example_deps="avcodec avformat avutil"

  2938. resampling_audio_example_deps="avutil swresample"

  2939. scaling_video_example_deps="avutil swscale"

  2940. transcode_aac_example_deps="avcodec avformat swresample"

  2941. transcoding_example_deps="avfilter avcodec avformat avutil"

  2942. 

  2943. # libraries, in linking order

  2944. avcodec_deps="avutil"

  2945. avdevice_deps="avformat avcodec avutil"

  2946. avfilter_deps="avutil"

  2947. avformat_deps="avcodec avutil"

  2948. avresample_deps="avutil"

  2949. postproc_deps="avutil gpl"

  2950. swresample_deps="avutil"

  2951. swscale_deps="avutil"

  2952. 

  2953. # programs

  2954. ffmpeg_deps="avcodec avfilter avformat swresample"

  2955. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  2956.                null_filter

  2957.                setpts_filter trim_filter"

  2958. ffplay_deps="avcodec avformat swscale swresample sdl"

  2959. ffplay_libs='$sdl_libs'

  2960. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  2961. ffprobe_deps="avcodec avformat"

  2962. ffserver_deps="avformat fork sarestart"

  2963. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  2964. 

  2965. # documentation

  2966. podpages_deps="perl"

  2967. manpages_deps="perl pod2man"

  2968. htmlpages_deps="perl"

  2969. htmlpages_deps_any="makeinfo_html texi2html"

  2970. txtpages_deps="perl makeinfo"

  2971. doc_deps_any="manpages htmlpages podpages txtpages"

  2972. 

  2973. # default parameters

  2974. 

  2975. logfile="config.log"

  2976. 

  2977. # installation paths

  2978. prefix_default="/usr/local"

  2979. bindir_default='${prefix}/bin'

  2980. datadir_default='${prefix}/share/ffmpeg'

  2981. docdir_default='${prefix}/share/doc/ffmpeg'

  2982. incdir_default='${prefix}/include'

  2983. libdir_default='${prefix}/lib'

  2984. mandir_default='${prefix}/share/man'

  2985. 

  2986. # toolchain

  2987. ar_default="ar"

  2988. cc_default="gcc"

  2989. cxx_default="g++"

  2990. host_cc_default="gcc"

  2991. cp_f="cp -f"

  2992. doxygen_default="doxygen"

  2993. install="install"

  2994. ln_s="ln -s -f"

  2995. nm_default="nm -g"

  2996. objformat="elf"

  2997. pkg_config_default=pkg-config

  2998. ranlib_default="ranlib"

  2999. strip_default="strip"

  3000. yasmexe_default="yasm"

  3001. windres_default="windres"

  3002. 

  3003. # OS

  3004. target_os_default=$(tolower $(uname -s))

  3005. host_os=$target_os_default

  3006. 

  3007. # machine

  3008. if test "$target_os_default" = aix; then

  3009.     arch_default=$(uname -p)

  3010.     strip_default="strip -X32_64"

  3011. else

  3012.     arch_default=$(uname -m)

  3013. fi

  3014. cpu="generic"

  3015. intrinsics="none"

  3016. 

  3017. # configurable options

  3018. enable $PROGRAM_LIST

  3019. enable $DOCUMENT_LIST

  3020. enable $EXAMPLE_LIST

  3021. enable $(filter_out avresample $LIBRARY_LIST)

  3022. enable stripping

  3023. 

  3024. enable asm

  3025. enable debug

  3026. enable doc

  3027. enable faan faandct faanidct

  3028. enable optimizations

  3029. enable runtime_cpudetect

  3030. enable safe_bitstream_reader

  3031. enable static

  3032. enable swscale_alpha

  3033. enable valgrind_backtrace

  3034. 

  3035. sws_max_filter_size_default=256

  3036. set_default sws_max_filter_size

  3037. 

  3038. # Enable hwaccels by default.

  3039. enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc

  3040. enable xlib

  3041. 

  3042. # build settings

  3043. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3044. LIBPREF="lib"

  3045. LIBSUF=".a"

  3046. FULLNAME='$(NAME)$(BUILDSUF)'

  3047. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3048. SLIBPREF="lib"

  3049. SLIBSUF=".so"

  3050. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3051. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3052. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3053. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3054. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3055. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3056. 

  3057. asflags_filter=echo

  3058. cflags_filter=echo

  3059. ldflags_filter=echo

  3060. 

  3061. AS_C='-c'

  3062. AS_O='-o $@'

  3063. CC_C='-c'

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

  3065. CC_O='-o $@'

  3066. CXX_C='-c'

  3067. CXX_O='-o $@'

  3068. OBJCC_C='-c'

  3069. OBJCC_E='-E -o $@'

  3070. OBJCC_O='-o $@'

  3071. LD_O='-o $@'

  3072. LD_LIB='-l%'

  3073. LD_PATH='-L'

  3074. HOSTCC_C='-c'

  3075. HOSTCC_E='-E -o $@'

  3076. HOSTCC_O='-o $@'

  3077. HOSTLD_O='-o $@'

  3078. 

  3079. host_libs='-lm'

  3080. host_cflags_filter=echo

  3081. host_ldflags_filter=echo

  3082. 

  3083. target_path='$(CURDIR)'

  3084. 

  3085. # since the object filename is not given with the -MM flag, the compiler

  3086. # is only able to print the basename, and we must add the path ourselves

  3087. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3088. DEPFLAGS='-MM'

  3089. 

  3090. # find source path

  3091. if test -f configure; then

  3092.     source_path=.

  3093. else

  3094.     source_path=$(cd $(dirname "$0"); pwd)

  3095.     case "$source_path" in

  3096.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3097.     esac

  3098.     test -e "$source_path/config.h" &&

  3099.         die "Out of tree builds are impossible with config.h in source dir."

  3100. fi

  3101. 

  3102. for v in "$@"; do

  3103.     r=${v#*=}

  3104.     l=${v%"$r"}

  3105.     r=$(sh_quote "$r")

  3106.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3107. done

  3108. 

  3109. find_things(){

  3110.     thing=$1

  3111.     pattern=$2

  3112.     file=$source_path/$3

  3113.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3114. }

  3115. 

  3116. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3117. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3118. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3119. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3120. BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)

  3121. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3122. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3123. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3124. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3125. PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)

  3126. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3127. 

  3128. ALL_COMPONENTS="

  3129.     $BSF_LIST

  3130.     $DECODER_LIST

  3131.     $DEMUXER_LIST

  3132.     $ENCODER_LIST

  3133.     $FILTER_LIST

  3134.     $HWACCEL_LIST

  3135.     $INDEV_LIST

  3136.     $MUXER_LIST

  3137.     $OUTDEV_LIST

  3138.     $PARSER_LIST

  3139.     $PROTOCOL_LIST

  3140. "

  3141. 

  3142. for n in $COMPONENT_LIST; do

  3143.     v=$(toupper ${n%s})_LIST

  3144.     eval enable \$$v

  3145.     eval ${n}_if_any="\$$v"

  3146. done

  3147. 

  3148. enable $ARCH_EXT_LIST

  3149. 

  3150. die_unknown(){

  3151.     echo "Unknown option \"$1\"."

  3152.     echo "See $0 --help for available options."

  3153.     exit 1

  3154. }

  3155. 

  3156. print_in_columns() {

  3157.     cols=$(expr $ncols / 24)

  3158.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3159. }

  3160. 

  3161. show_list() {

  3162.     suffix=_$1

  3163.     shift

  3164.     echo $* | sed s/$suffix//g | print_in_columns

  3165.     exit 0

  3166. }

  3167. 

  3168. rand_list(){

  3169.     IFS=', '

  3170.     set -- $*

  3171.     unset IFS

  3172.     for thing; do

  3173.         comp=${thing%:*}

  3174.         prob=${thing#$comp}

  3175.         prob=${prob#:}

  3176.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3177.         echo "prob ${prob:-0.5}"

  3178.         printf '%s\n' $comp

  3179.     done

  3180. }

  3181. 

  3182. do_random(){

  3183.     action=$1

  3184.     shift

  3185.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3186.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3187. }

  3188. 

  3189. for opt do

  3190.     optval="${opt#*=}"

  3191.     case "$opt" in

  3192.         --extra-ldflags=*)

  3193.             add_ldflags $optval

  3194.         ;;

  3195.         --extra-ldexeflags=*)

  3196.             add_ldexeflags $optval

  3197.         ;;

  3198.         --extra-ldlibflags=*)

  3199.             add_ldlibflags $optval

  3200.         ;;

  3201.         --extra-libs=*)

  3202.             add_extralibs $optval

  3203.         ;;

  3204.         --disable-devices)

  3205.             disable $INDEV_LIST $OUTDEV_LIST

  3206.         ;;

  3207.         --enable-debug=*)

  3208.             debuglevel="$optval"

  3209.         ;;

  3210.         --disable-programs)

  3211.             disable $PROGRAM_LIST

  3212.         ;;

  3213.         --disable-everything)

  3214.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3215.         ;;

  3216.         --disable-all)

  3217.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3218.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3219.             enable avutil

  3220.         ;;

  3221.         --enable-random|--disable-random)

  3222.             action=${opt%%-random}

  3223.             do_random ${action#--} $COMPONENT_LIST

  3224.         ;;

  3225.         --enable-random=*|--disable-random=*)

  3226.             action=${opt%%-random=*}

  3227.             do_random ${action#--} $optval

  3228.         ;;

  3229.         --enable-*=*|--disable-*=*)

  3230.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3231.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3232.             eval list=\$$(toupper $thing)_LIST

  3233.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3234.             list=$(filter "$name" $list)

  3235.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3236.             $action $list

  3237.         ;;

  3238.         --enable-?*|--disable-?*)

  3239.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3240.             if is_in $option $COMPONENT_LIST; then

  3241.                 test $action = disable && action=unset

  3242.                 eval $action \$$(toupper ${option%s})_LIST

  3243.             elif is_in $option $CMDLINE_SELECT; then

  3244.                 $action $option

  3245.             else

  3246.                 die_unknown $opt

  3247.             fi

  3248.         ;;

  3249.         --list-*)

  3250.             NAME="${opt#--list-}"

  3251.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3252.             NAME=${NAME%s}

  3253.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3254.         ;;

  3255.         --help|-h) show_help

  3256.         ;;

  3257.         --fatal-warnings) enable fatal_warnings

  3258.         ;;

  3259.         *)

  3260.             optname="${opt%%=*}"

  3261.             optname="${optname#--}"

  3262.             optname=$(echo "$optname" | sed 's/-/_/g')

  3263.             if is_in $optname $CMDLINE_SET; then

  3264.                 eval $optname='$optval'

  3265.             elif is_in $optname $CMDLINE_APPEND; then

  3266.                 append $optname "$optval"

  3267.             else

  3268.                 die_unknown $opt

  3269.             fi

  3270.         ;;

  3271.     esac

  3272. done

  3273. 

  3274. for e in $env; do

  3275.     eval "export $e"

  3276. done

  3277. 

  3278. disabled logging && logfile=/dev/null

  3279. 

  3280. # Disable all the library-specific components if the library itself

  3281. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3282. 

  3283. disable_components(){

  3284.     disabled ${1} && disable $(

  3285.         eval components="\$$(toupper ${1})_COMPONENTS"

  3286.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3287.     )

  3288. }

  3289. 

  3290. map 'disable_components $v' $LIBRARY_LIST

  3291. 

  3292. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3293. set >> $logfile

  3294. 

  3295. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3296. 

  3297. case "$toolchain" in

  3298.     clang-asan)

  3299.         cc_default="clang"

  3300.         add_cflags  -fsanitize=address

  3301.         add_ldflags -fsanitize=address

  3302.     ;;

  3303.     clang-tsan)

  3304.         cc_default="clang"

  3305.         add_cflags  -fsanitize=thread -pie

  3306.         add_ldflags -fsanitize=thread -pie

  3307.     ;;

  3308.     clang-usan)

  3309.         cc_default="clang"

  3310.         add_cflags  -fsanitize=undefined

  3311.         add_ldflags -fsanitize=undefined

  3312.     ;;

  3313.     gcc-asan)

  3314.         cc_default="gcc"

  3315.         add_cflags  -fsanitize=address

  3316.         add_ldflags -fsanitize=address

  3317.     ;;

  3318.     gcc-tsan)

  3319.         cc_default="gcc"

  3320.         add_cflags  -fsanitize=thread -pie -fPIC

  3321.         add_ldflags -fsanitize=thread -pie -fPIC

  3322.     ;;

  3323.     gcc-usan)

  3324.         cc_default="gcc"

  3325.         add_cflags  -fsanitize=undefined

  3326.         add_ldflags -fsanitize=undefined

  3327.     ;;

  3328.     valgrind-massif)

  3329.         target_exec_default=${valgrind:-"valgrind"}

  3330.         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"

  3331.     ;;

  3332.     valgrind-memcheck)

  3333.         target_exec_default=${valgrind:-"valgrind"}

  3334.         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"

  3335.     ;;

  3336.     msvc)

  3337.         # Check whether the current MSVC version needs the C99 converter.

  3338.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3339.         # support enough of C99 to build ffmpeg. Default to the new

  3340.         # behaviour if the regexp was unable to match anything, since this

  3341.         # successfully parses the version number of existing supported

  3342.         # versions that require the converter (MSVC 2010 and 2012).

  3343.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3344.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3345.             cc_default="cl"

  3346.         else

  3347.             cc_default="c99wrap cl"

  3348.         fi

  3349.         ld_default="$source_path/compat/windows/mslink"

  3350.         nm_default="dumpbin -symbols"

  3351.         ar_default="lib"

  3352.         case "$arch" in

  3353.         arm*)

  3354.             as_default="armasm"

  3355.             ;;

  3356.         esac

  3357.         target_os_default="win32"

  3358.         # Use a relative path for TMPDIR. This makes sure all the

  3359.         # ffconf temp files are written with a relative path, avoiding

  3360.         # issues with msys/win32 path conversion for MSVC parameters

  3361.         # such as -Fo<file> or -out:<file>.

  3362.         TMPDIR=.

  3363.     ;;

  3364.     icl)

  3365.         cc_default="icl"

  3366.         ld_default="xilink"

  3367.         nm_default="dumpbin -symbols"

  3368.         ar_default="xilib"

  3369.         target_os_default="win32"

  3370.         TMPDIR=.

  3371.     ;;

  3372.     gcov)

  3373.         add_cflags  -fprofile-arcs -ftest-coverage

  3374.         add_ldflags -fprofile-arcs -ftest-coverage

  3375.     ;;

  3376.     hardened)

  3377.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3378.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3379.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3380.     ;;

  3381.     ?*)

  3382.         die "Unknown toolchain $toolchain"

  3383.     ;;

  3384. esac

  3385. 

  3386. test -n "$cross_prefix" && enable cross_compile

  3387. 

  3388. if enabled cross_compile; then

  3389.     test -n "$arch" && test -n "$target_os" ||

  3390.         die "Must specify target arch and OS when cross-compiling"

  3391. fi

  3392. 

  3393. ar_default="${cross_prefix}${ar_default}"

  3394. cc_default="${cross_prefix}${cc_default}"

  3395. cxx_default="${cross_prefix}${cxx_default}"

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

  3397. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3398. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3399.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3400. else

  3401.     ranlib_default="${cross_prefix}${ranlib_default}"

  3402. fi

  3403. strip_default="${cross_prefix}${strip_default}"

  3404. windres_default="${cross_prefix}${windres_default}"

  3405. 

  3406. sysinclude_default="${sysroot}/usr/include"

  3407. 

  3408. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3409.     target_exec target_os yasmexe

  3410. enabled cross_compile || host_cc_default=$cc

  3411. set_default host_cc

  3412. 

  3413. pkg_config_fail_message=""

  3414. if ! $pkg_config --version >/dev/null 2>&1; then

  3415.     warn "$pkg_config not found, library detection may fail."

  3416.     pkg_config=false

  3417. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3418.     pkg_config_fail_message="

  3419. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3420. fi

  3421. 

  3422. if test $doxygen != $doxygen_default && \

  3423.   ! $doxygen --version >/dev/null 2>&1; then

  3424.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3425. fi

  3426. 

  3427. exesuf() {

  3428.     case $1 in

  3429.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3430.     esac

  3431. }

  3432. 

  3433. EXESUF=$(exesuf $target_os)

  3434. HOSTEXESUF=$(exesuf $host_os)

  3435. 

  3436. # set temporary file name

  3437. : ${TMPDIR:=$TEMPDIR}

  3438. : ${TMPDIR:=$TMP}

  3439. : ${TMPDIR:=/tmp}

  3440. 

  3441. if [ -n "$tempprefix" ] ; then

  3442.     mktemp(){

  3443.         echo $tempprefix.${HOSTNAME}.${UID}

  3444.     }

  3445. elif ! check_cmd mktemp -u XXXXXX; then

  3446.     # simple replacement for missing mktemp

  3447.     # NOT SAFE FOR GENERAL USE

  3448.     mktemp(){

  3449.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3450.     }

  3451. fi

  3452. 

  3453. tmpfile(){

  3454.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3455.         (set -C; exec > $tmp) 2>/dev/null ||

  3456.         die "Unable to create temporary file in $TMPDIR."

  3457.     append TMPFILES $tmp

  3458.     eval $1=$tmp

  3459. }

  3460. 

  3461. trap 'rm -f -- $TMPFILES' EXIT

  3462. 

  3463. tmpfile TMPASM .asm

  3464. tmpfile TMPC   .c

  3465. tmpfile TMPCPP .cpp

  3466. tmpfile TMPE   $EXESUF

  3467. tmpfile TMPH   .h

  3468. tmpfile TMPM   .m

  3469. tmpfile TMPO   .o

  3470. tmpfile TMPS   .S

  3471. tmpfile TMPSH  .sh

  3472. tmpfile TMPV   .ver

  3473. 

  3474. unset -f mktemp

  3475. 

  3476. chmod +x $TMPE

  3477. 

  3478. # make sure we can execute files in $TMPDIR

  3479. cat > $TMPSH 2>> $logfile <<EOF

  3480. #! /bin/sh

  3481. EOF

  3482. chmod +x $TMPSH >> $logfile 2>&1

  3483. if ! $TMPSH >> $logfile 2>&1; then

  3484.     cat <<EOF

  3485. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3486. variable to another directory and make sure that it is not mounted noexec.

  3487. EOF

  3488.     die "Sanity test failed."

  3489. fi

  3490. 

  3491. armasm_flags(){

  3492.     for flag; do

  3493.         case $flag in

  3494.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3495.             # be passed to gas-preprocessor

  3496.             -M[TD]*)                                            ;;

  3497.             *)                  echo $flag                      ;;

  3498.         esac

  3499.    done

  3500. }

  3501. 

  3502. ccc_flags(){

  3503.     for flag; do

  3504.         case $flag in

  3505.             -std=c99)           echo -c99                       ;;

  3506.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3507.             -mieee)             echo -ieee                      ;;

  3508.             -O*|-fast)          echo $flag                      ;;

  3509.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3510.             -g)                 echo -g3                        ;;

  3511.             -Wall)              echo -msg_enable level2         ;;

  3512.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3513.             -Wl,*)              echo $flag                      ;;

  3514.             -f*|-W*)                                            ;;

  3515.             *)                  echo $flag                      ;;

  3516.         esac

  3517.    done

  3518. }

  3519. 

  3520. cparser_flags(){

  3521.     for flag; do

  3522.         case $flag in

  3523.             -Wno-switch)             echo -Wno-switch-enum ;;

  3524.             -Wno-format-zero-length) ;;

  3525.             -Wdisabled-optimization) ;;

  3526.             -Wno-pointer-sign)       echo -Wno-other ;;

  3527.             *)                       echo $flag ;;

  3528.         esac

  3529.     done

  3530. }

  3531. 

  3532. msvc_common_flags(){

  3533.     for flag; do

  3534.         case $flag in

  3535.             # In addition to specifying certain flags under the compiler

  3536.             # specific filters, they must be specified here as well or else the

  3537.             # generic catch all at the bottom will print the original flag.

  3538.             -Wall)                ;;

  3539.             -std=c99)             ;;

  3540.             # Common flags

  3541.             -fomit-frame-pointer) ;;

  3542.             -g)                   echo -Z7 ;;

  3543.             -fno-math-errno)      ;;

  3544.             -fno-common)          ;;

  3545.             -fno-signed-zeros)    ;;

  3546.             -fPIC)                ;;

  3547.             -mthumb)              ;;

  3548.             -march=*)             ;;

  3549.             -lz)                  echo zlib.lib ;;

  3550.             -lavifil32)           echo vfw32.lib ;;

  3551.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3552.             -l*)                  echo ${flag#-l}.lib ;;

  3553.             -LARGEADDRESSAWARE)   echo $flag ;;

  3554.             -L*)                  echo -libpath:${flag#-L} ;;

  3555.             *)                    echo $flag ;;

  3556.         esac

  3557.     done

  3558. }

  3559. 

  3560. msvc_flags(){

  3561.     msvc_common_flags "$@"

  3562.     for flag; do

  3563.         case $flag in

  3564.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3565.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3566.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3567.                                        -wd4307 \

  3568.                                        -wd4273 -wd4554 -wd4701 ;;

  3569.         esac

  3570.     done

  3571. }

  3572. 

  3573. icl_flags(){

  3574.     msvc_common_flags "$@"

  3575.     for flag; do

  3576.         case $flag in

  3577.             # Despite what Intel's documentation says -Wall, which is supported

  3578.             # on Windows, does enable remarks so disable them here.

  3579.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3580.             -std=c99)             echo -Qstd=c99 ;;

  3581.             -flto)                echo -ipo ;;

  3582.         esac

  3583.     done

  3584. }

  3585. 

  3586. icc_flags(){

  3587.     for flag; do

  3588.         case $flag in

  3589.             -flto)                echo -ipo ;;

  3590.             *)                    echo $flag ;;

  3591.         esac

  3592.     done

  3593. }

  3594. 

  3595. pgi_flags(){

  3596.     for flag; do

  3597.         case $flag in

  3598.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3599.             -fomit-frame-pointer) echo -Mnoframe ;;

  3600.             -g)                   echo -gopt ;;

  3601.             *)                    echo $flag ;;

  3602.         esac

  3603.     done

  3604. }

  3605. 

  3606. suncc_flags(){

  3607.     for flag; do

  3608.         case $flag in

  3609.             -march=*|-mcpu=*)

  3610.                 case "${flag#*=}" in

  3611.                     native)                   echo -xtarget=native       ;;

  3612.                     v9|niagara)               echo -xarch=sparc          ;;

  3613.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3614.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3615.                     i586|pentium)             echo -xchip=pentium        ;;

  3616.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3617.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3618.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3619.                     pentium4*)          echo -xtarget=pentium4           ;;

  3620.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3621.                     *-sse3)             echo -xarch=sse3                 ;;

  3622.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3623.                     bonnell)                   echo -xarch=ssse3         ;;

  3624.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3625.                     westmere)                  echo -xtarget=westmere    ;;

  3626.                     silvermont)                echo -xarch=sse4_2        ;;

  3627.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3628.                     core-avx*|ivybridge|haswell|broadwell)

  3629.                                                echo -xarch=avx           ;;

  3630.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3631.                     btver1)                    echo -xarch=amdsse4a      ;;

  3632.                     btver2|bdver*)             echo -xarch=avx           ;;

  3633.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3634.                     k8|opteron|athlon64|athlon-fx)

  3635.                                                echo -xarch=sse2a         ;;

  3636.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3637.                 esac

  3638.                 ;;

  3639.             -std=c99)             echo -xc99              ;;

  3640.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3641.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3642.             -W*,*)                echo $flag              ;;

  3643.             -f*-*|-W*|-mimpure-text)                      ;;

  3644.             -shared)              echo -G                 ;;

  3645.             *)                    echo $flag              ;;

  3646.         esac

  3647.     done

  3648. }

  3649. 

  3650. tms470_flags(){

  3651.     for flag; do

  3652.         case $flag in

  3653.             -march=*|-mcpu=*)

  3654.                 case "${flag#*=}" in

  3655.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3656.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3657.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3658.                     armv6*|arm11*)          echo -mv=6   ;;

  3659.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3660.                                             echo -mv=5e  ;;

  3661.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3662.                 esac

  3663.                 ;;

  3664.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3665.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3666.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3667.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3668.             -msoft-float)   echo --float_support=vfplib       ;;

  3669.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3670.             -g)             echo -g -mn                       ;;

  3671.             -pds=*)         echo $flag                        ;;

  3672.             -D*|-I*)        echo $flag                        ;;

  3673.             --gcc|--abi=*)  echo $flag                        ;;

  3674.             -me)            echo $flag                        ;;

  3675.         esac

  3676.     done

  3677. }

  3678. 

  3679. probe_cc(){

  3680.     pfx=$1

  3681.     _cc=$2

  3682.     first=$3

  3683. 

  3684.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3685.     unset _ld_o _ldflags _ld_lib _ld_path

  3686.     unset _depflags _DEPCMD _DEPFLAGS

  3687.     _flags_filter=echo

  3688. 

  3689.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3690.         true # no-op to avoid reading stdin in following checks

  3691.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3692.         _type=llvm_gcc

  3693.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3694.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3695.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3696.         _cflags_speed='-O3'

  3697.         _cflags_size='-Os'

  3698.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3699.         _type=gcc

  3700.         gcc_version=$($_cc --version | head -n1)

  3701.         gcc_basever=$($_cc -dumpversion)

  3702.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3703.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3704.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3705.         case $gcc_basever in

  3706.             2) ;;

  3707.             2.*) ;;

  3708.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3709.         esac

  3710.         if [ "$first" = true ]; then

  3711.             case $gcc_basever in

  3712.                 4.2*)

  3713.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3714.             esac

  3715.         fi

  3716.         _cflags_speed='-O3'

  3717.         _cflags_size='-Os'

  3718.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3719.         _type=icc

  3720.         _ident=$($_cc --version | head -n1)

  3721.         _depflags='-MMD'

  3722.         _cflags_speed='-O3'

  3723.         _cflags_size='-Os'

  3724.         _cflags_noopt='-O1'

  3725.         _flags_filter=icc_flags

  3726.     elif $_cc -v 2>&1 | grep -q xlc; then

  3727.         _type=xlc

  3728.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3729.         _cflags_speed='-O5'

  3730.         _cflags_size='-O5 -qcompact'

  3731.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3732.         _type=ccc

  3733.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3734.         _DEPFLAGS='-M'

  3735.         _cflags_speed='-fast'

  3736.         _cflags_size='-O1'

  3737.         _flags_filter=ccc_flags

  3738.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3739.         test -d "$sysroot" || die "No valid sysroot specified."

  3740.         _type=armcc

  3741.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3742.         armcc_conf="$PWD/armcc.conf"

  3743.         $_cc --arm_linux_configure                 \

  3744.              --arm_linux_config_file="$armcc_conf" \

  3745.              --configure_sysroot="$sysroot"        \

  3746.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3747.              die "Error creating armcc configuration file."

  3748.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3749.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3750.         as_default="${cross_prefix}gcc"

  3751.         _depflags='-MMD'

  3752.         _cflags_speed='-O3'

  3753.         _cflags_size='-Os'

  3754.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3755.         _type=tms470

  3756.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3757.         _flags='--gcc --abi=eabi -me'

  3758.         _cc_e='-ppl -fe=$@'

  3759.         _cc_o='-fe=$@'

  3760.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3761.         _cflags_speed='-O3 -mf=5'

  3762.         _cflags_size='-O3 -mf=2'

  3763.         _flags_filter=tms470_flags

  3764.     elif $_cc -v 2>&1 | grep -q clang; then

  3765.         _type=clang

  3766.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3767.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3768.         _cflags_speed='-O3'

  3769.         _cflags_size='-Os'

  3770.     elif $_cc -V 2>&1 | grep -q Sun; then

  3771.         _type=suncc

  3772.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3773.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3774.         _DEPFLAGS='-xM1 -xc99'

  3775.         _ldflags='-std=c99'

  3776.         _cflags_speed='-O5'

  3777.         _cflags_size='-O5 -xspace'

  3778.         _flags_filter=suncc_flags

  3779.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3780.         _type=pathscale

  3781.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3782.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3783.         _cflags_speed='-O2'

  3784.         _cflags_size='-Os'

  3785.         _flags_filter='filter_out -Wdisabled-optimization'

  3786.     elif $_cc -v 2>&1 | grep -q Open64; then

  3787.         _type=open64

  3788.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3789.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3790.         _cflags_speed='-O2'

  3791.         _cflags_size='-Os'

  3792.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3793.     elif $_cc -V 2>&1 | grep -q Portland; then

  3794.         _type=pgi

  3795.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3796.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  3797.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  3798.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  3799.         _cflags_noopt="-O"

  3800.         _flags_filter=pgi_flags

  3801.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  3802.         _type=armasm

  3803.         _ident=$($_cc | head -n1)

  3804.         # 4509: "This form of conditional instruction is deprecated"

  3805.         _flags="-nologo -ignore 4509"

  3806.         _flags_filter=armasm_flags

  3807.     elif $_cc 2>&1 | grep -q Intel; then

  3808.         _type=icl

  3809.         _ident=$($_cc 2>&1 | head -n1)

  3810.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  3811.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  3812.         # versions (tested) as well.

  3813.         _cflags_speed="-O2"

  3814.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  3815.         if $_cc 2>&1 | grep -q Linker; then

  3816.             _ld_o='-out:$@'

  3817.         else

  3818.             _ld_o='-Fe$@'

  3819.         fi

  3820.         _cc_o='-Fo$@'

  3821.         _cc_e='-P'

  3822.         _flags_filter=icl_flags

  3823.         _ld_lib='lib%.a'

  3824.         _ld_path='-libpath:'

  3825.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  3826.         _flags='-nologo -Qdiag-error:4044,10157'

  3827.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  3828.         # with MSVC which enables it by default.

  3829.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  3830.         disable stripping

  3831.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  3832.         _type=msvc

  3833.         _ident=$($_cc 2>&1 | head -n1)

  3834.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  3835.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  3836.         _cflags_speed="-O2"

  3837.         _cflags_size="-O1"

  3838.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  3839.             _ld_o='-out:$@'

  3840.         else

  3841.             _ld_o='-Fe$@'

  3842.         fi

  3843.         _cc_o='-Fo$@'

  3844.         _cc_e='-P -Fi$@'

  3845.         _flags_filter=msvc_flags

  3846.         _ld_lib='lib%.a'

  3847.         _ld_path='-libpath:'

  3848.         _flags='-nologo'

  3849.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'

  3850.         disable stripping

  3851.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  3852.         _type=cparser

  3853.         _ident=$($_cc --version | head -n1)

  3854.         _depflags='-MMD'

  3855.         _cflags_speed='-O4'

  3856.         _cflags_size='-O2'

  3857.         _flags_filter=cparser_flags

  3858.     fi

  3859. 

  3860.     eval ${pfx}_type=\$_type

  3861.     eval ${pfx}_ident=\$_ident

  3862. }

  3863. 

  3864. set_ccvars(){

  3865.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  3866.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  3867.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  3868. 

  3869.     if [ -n "$_depflags" ]; then

  3870.         eval ${1}_DEPFLAGS=\$_depflags

  3871.     else

  3872.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  3873.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  3874.         eval DEP${1}FLAGS=\$_flags

  3875.     fi

  3876. }

  3877. 

  3878. probe_cc cc "$cc" "true"

  3879. cflags_filter=$_flags_filter

  3880. cflags_speed=$_cflags_speed

  3881. cflags_size=$_cflags_size

  3882. cflags_noopt=$_cflags_noopt

  3883. add_cflags $_flags $_cflags

  3884. cc_ldflags=$_ldflags

  3885. set_ccvars CC

  3886. 

  3887. probe_cc hostcc "$host_cc"

  3888. host_cflags_filter=$_flags_filter

  3889. add_host_cflags  $_flags $_cflags

  3890. set_ccvars HOSTCC

  3891. 

  3892. test -n "$cc_type" && enable $cc_type ||

  3893.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  3894. 

  3895. : ${as_default:=$cc}

  3896. : ${objcc_default:=$cc}

  3897. : ${dep_cc_default:=$cc}

  3898. : ${ld_default:=$cc}

  3899. : ${host_ld_default:=$host_cc}

  3900. set_default ar as objcc dep_cc ld host_ld windres

  3901. 

  3902. probe_cc as "$as"

  3903. asflags_filter=$_flags_filter

  3904. add_asflags $_flags $_cflags

  3905. set_ccvars AS

  3906. 

  3907. probe_cc objcc "$objcc"

  3908. objcflags_filter=$_flags_filter

  3909. add_objcflags $_flags $_cflags

  3910. set_ccvars OBJC

  3911. 

  3912. probe_cc ld "$ld"

  3913. ldflags_filter=$_flags_filter

  3914. add_ldflags $_flags $_ldflags

  3915. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  3916. LD_O=${_ld_o-$LD_O}

  3917. LD_LIB=${_ld_lib-$LD_LIB}

  3918. LD_PATH=${_ld_path-$LD_PATH}

  3919. 

  3920. probe_cc hostld "$host_ld"

  3921. host_ldflags_filter=$_flags_filter

  3922. add_host_ldflags $_flags $_ldflags

  3923. HOSTLD_O=${_ld_o-$HOSTLD_O}

  3924. 

  3925. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  3926.     probe_cc depcc "$dep_cc"

  3927.     CCDEP=${_DEPCMD:-$DEPCMD}

  3928.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  3929.     DEPCCFLAGS=$_flags

  3930. fi

  3931. 

  3932. if $ar 2>&1 | grep -q Microsoft; then

  3933.     arflags="-nologo"

  3934.     ar_o='-out:$@'

  3935. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  3936.     arflags="rq"

  3937.     ar_o='$@'

  3938. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  3939.     arflags='-Xany -r -c'

  3940.     ar_o='$@'

  3941. elif $ar 2>&1 | grep -q "\[D\] "; then

  3942.     arflags="rcD"

  3943.     ar_o='$@'

  3944. else

  3945.     arflags="rc"

  3946.     ar_o='$@'

  3947. fi

  3948. 

  3949. add_cflags $extra_cflags

  3950. add_cxxflags $extra_cxxflags

  3951. add_objcflags $extra_objcflags

  3952. add_asflags $extra_cflags

  3953. 

  3954. if test -n "$sysroot"; then

  3955.     case "$cc_type" in

  3956.         gcc|llvm_gcc|clang)

  3957.             add_cppflags --sysroot="$sysroot"

  3958.             add_ldflags --sysroot="$sysroot"

  3959. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  3960.             add_cppflags -isysroot "$sysroot"

  3961.             add_ldflags -isysroot "$sysroot"

  3962.         ;;

  3963.         tms470)

  3964.             add_cppflags -I"$sysinclude"

  3965.             add_ldflags  --sysroot="$sysroot"

  3966.         ;;

  3967.     esac

  3968. fi

  3969. 

  3970. if test "$cpu" = host; then

  3971.     enabled cross_compile &&

  3972.         die "--cpu=host makes no sense when cross-compiling."

  3973. 

  3974.     case "$cc_type" in

  3975.         gcc|llvm_gcc)

  3976.             check_native(){

  3977.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  3978.                 sed -n "/cc1.*$1=/{

  3979.                             s/.*$1=\\([^ ]*\\).*/\\1/

  3980.                             p

  3981.                             q

  3982.                         }" $TMPE

  3983.             }

  3984.             cpu=$(check_native -march || check_native -mcpu)

  3985.         ;;

  3986.         clang)

  3987.             check_native(){

  3988.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  3989.                 sed -n "/cc1.*-target-cpu /{

  3990.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  3991.                             p

  3992.                             q

  3993.                         }" $TMPE

  3994.             }

  3995.             cpu=$(check_native -march)

  3996.         ;;

  3997.     esac

  3998. 

  3999.     test "${cpu:-host}" = host &&

  4000.         die "--cpu=host not supported with compiler $cc"

  4001. fi

  4002. 

  4003. # Deal with common $arch aliases

  4004. case "$arch" in

  4005.     aarch64|arm64)

  4006.         arch="aarch64"

  4007.     ;;

  4008.     arm*|iPad*|iPhone*)

  4009.         arch="arm"

  4010.     ;;

  4011.     mips*|IP*)

  4012.         arch="mips"

  4013.     ;;

  4014.     parisc*|hppa*)

  4015.         arch="parisc"

  4016.     ;;

  4017.     "Power Macintosh"|ppc*|powerpc*)

  4018.         arch="ppc"

  4019.     ;;

  4020.     s390|s390x)

  4021.         arch="s390"

  4022.     ;;

  4023.     sh4|sh)

  4024.         arch="sh4"

  4025.     ;;

  4026.     sun4u|sparc*)

  4027.         arch="sparc"

  4028.     ;;

  4029.     tilegx|tile-gx)

  4030.         arch="tilegx"

  4031.     ;;

  4032.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4033.         arch="x86"

  4034.     ;;

  4035. esac

  4036. 

  4037. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4038. enable $arch

  4039. 

  4040. # Add processor-specific flags

  4041. if enabled aarch64; then

  4042. 

  4043.     case $cpu in

  4044.         armv*)

  4045.             cpuflags="-march=$cpu"

  4046.         ;;

  4047.         *)

  4048.             cpuflags="-mcpu=$cpu"

  4049.         ;;

  4050.     esac

  4051. 

  4052. elif enabled alpha; then

  4053. 

  4054.     cpuflags="-mcpu=$cpu"

  4055. 

  4056. elif enabled arm; then

  4057. 

  4058.     check_arm_arch() {

  4059.         check_cpp_condition stddef.h \

  4060.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4061.             $cpuflags

  4062.     }

  4063. 

  4064.     probe_arm_arch() {

  4065.         if   check_arm_arch 4;        then echo armv4;

  4066.         elif check_arm_arch 4T;       then echo armv4t;

  4067.         elif check_arm_arch 5;        then echo armv5;

  4068.         elif check_arm_arch 5E;       then echo armv5e;

  4069.         elif check_arm_arch 5T;       then echo armv5t;

  4070.         elif check_arm_arch 5TE;      then echo armv5te;

  4071.         elif check_arm_arch 5TEJ;     then echo armv5te;

  4072.         elif check_arm_arch 6;        then echo armv6;

  4073.         elif check_arm_arch 6J;       then echo armv6j;

  4074.         elif check_arm_arch 6K;       then echo armv6k;

  4075.         elif check_arm_arch 6Z;       then echo armv6z;

  4076.         elif check_arm_arch 6ZK;      then echo armv6zk;

  4077.         elif check_arm_arch 6T2;      then echo armv6t2;

  4078.         elif check_arm_arch 7;        then echo armv7;

  4079.         elif check_arm_arch 7A  7_A;  then echo armv7-a;

  4080.         elif check_arm_arch 7S;       then echo armv7-a;

  4081.         elif check_arm_arch 7R  7_R;  then echo armv7-r;

  4082.         elif check_arm_arch 7M  7_M;  then echo armv7-m;

  4083.         elif check_arm_arch 7EM 7E_M; then echo armv7-m;

  4084.         elif check_arm_arch 8A  8_A;  then echo armv8-a;

  4085.         fi

  4086.     }

  4087. 

  4088.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4089. 

  4090.     case $cpu in

  4091.         armv*)

  4092.             cpuflags="-march=$cpu"

  4093.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4094.         ;;

  4095.         *)

  4096.             cpuflags="-mcpu=$cpu"

  4097.             case $cpu in

  4098.                 cortex-a*)                               subarch=armv7a  ;;

  4099.                 cortex-r*)                               subarch=armv7r  ;;

  4100.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4101.                 arm11*)                                  subarch=armv6   ;;

  4102.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4103.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4104.                 *)                             subarch=$(probe_arm_arch) ;;

  4105.             esac

  4106.         ;;

  4107.     esac

  4108. 

  4109.     case "$subarch" in

  4110.         armv5t*)    enable fast_clz                ;;

  4111.         armv[6-8]*)

  4112.             enable fast_clz

  4113.             disabled fast_unaligned || enable fast_unaligned

  4114.             ;;

  4115.     esac

  4116. 

  4117. elif enabled avr32; then

  4118. 

  4119.     case $cpu in

  4120.         ap7[02]0[0-2])

  4121.             subarch="avr32_ap"

  4122.             cpuflags="-mpart=$cpu"

  4123.         ;;

  4124.         ap)

  4125.             subarch="avr32_ap"

  4126.             cpuflags="-march=$cpu"

  4127.         ;;

  4128.         uc3[ab]*)

  4129.             subarch="avr32_uc"

  4130.             cpuflags="-mcpu=$cpu"

  4131.         ;;

  4132.         uc)

  4133.             subarch="avr32_uc"

  4134.             cpuflags="-march=$cpu"

  4135.         ;;

  4136.     esac

  4137. 

  4138. elif enabled bfin; then

  4139. 

  4140.     cpuflags="-mcpu=$cpu"

  4141. 

  4142. elif enabled mips; then

  4143. 

  4144.     cpuflags="-march=$cpu"

  4145. 

  4146.     case $cpu in

  4147.         24kc)

  4148.             disable mips32r6

  4149.             disable mips64r2

  4150.             disable mips64r6

  4151.             disable mipsfpu

  4152.             disable mipsdsp

  4153.             disable mipsdspr2

  4154.             disable msa

  4155.         ;;

  4156.         24kf*)

  4157.             disable mips32r6

  4158.             disable mips64r2

  4159.             disable mips64r6

  4160.             disable mipsdsp

  4161.             disable mipsdspr2

  4162.             disable msa

  4163.         ;;

  4164.         24kec|34kc|1004kc)

  4165.             disable mips32r6

  4166.             disable mips64r2

  4167.             disable mips64r6

  4168.             disable mipsfpu

  4169.             disable mipsdspr2

  4170.             disable msa

  4171.         ;;

  4172.         24kef*|34kf*|1004kf*)

  4173.             disable mips32r6

  4174.             disable mips64r2

  4175.             disable mips64r6

  4176.             disable mipsdspr2

  4177.             disable msa

  4178.         ;;

  4179.         74kc)

  4180.             disable mips32r6

  4181.             disable mips64r2

  4182.             disable mips64r6

  4183.             disable mipsfpu

  4184.             disable msa

  4185.         ;;

  4186.         74kf)

  4187.             disable mips32r6

  4188.             disable mips64r2

  4189.             disable mips64r6

  4190.             disable msa

  4191.         ;;

  4192.         p5600)

  4193.             disable mips32r6

  4194.             disable mips64r2

  4195.             disable mips64r6

  4196.             disable mipsdsp

  4197.             disable mipsdspr2

  4198.             check_cflags "-mtune=p5600" &&

  4199.             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&

  4200.             add_asflags "-mfp64"

  4201.         ;;

  4202.         i6400)

  4203.             disable mips32r2

  4204.             disable mips32r6

  4205.             disable mips64r2

  4206.             disable mipsdsp

  4207.             disable mipsdspr2

  4208.             check_cflags "-mtune=i6400 -mabi=64" &&

  4209.             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&

  4210.             check_ldflags "-mabi=64" &&

  4211.             add_asflags "-mfp64"

  4212.         ;;

  4213.         loongson*)

  4214.             disable mips32r2

  4215.             disable mips32r6

  4216.             disable mips64r2

  4217.             disable mips64r6

  4218.             disable mipsfpu

  4219.             disable mipsdsp

  4220.             disable mipsdspr2

  4221.             disable msa

  4222.             enable local_aligned_8 local_aligned_16 local_aligned_32

  4223.             enable simd_align_16

  4224.             enable fast_64bit

  4225.             enable fast_clz

  4226.             enable fast_cmov

  4227.             enable fast_unaligned

  4228.             disable aligned_stack

  4229.             case $cpu in

  4230.                 loongson3*)

  4231.                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4232.                 ;;

  4233.                 loongson2e)

  4234.                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4235.                 ;;

  4236.                 loongson2f)

  4237.                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4238.                 ;;

  4239.             esac

  4240.         ;;

  4241.         generic)

  4242.             disable mips64r6

  4243.             disable msa

  4244.         ;;

  4245.         *)

  4246.             # Unknown CPU. Disable everything.

  4247.             warn "unknown CPU. Disabling all MIPS optimizations."

  4248.             disable mipsfpu

  4249.             disable mips32r2

  4250.             disable mips32r6

  4251.             disable mips64r2

  4252.             disable mips64r6

  4253.             disable mipsdsp

  4254.             disable mipsdspr2

  4255.             disable msa

  4256.         ;;

  4257.     esac

  4258. 

  4259. elif enabled ppc; then

  4260. 

  4261.     disable ldbrx

  4262. 

  4263.     case $(tolower $cpu) in

  4264.         601|ppc601|powerpc601)

  4265.             cpuflags="-mcpu=601"

  4266.             disable altivec

  4267.         ;;

  4268.         603*|ppc603*|powerpc603*)

  4269.             cpuflags="-mcpu=603"

  4270.             disable altivec

  4271.         ;;

  4272.         604*|ppc604*|powerpc604*)

  4273.             cpuflags="-mcpu=604"

  4274.             disable altivec

  4275.         ;;

  4276.         g3|75*|ppc75*|powerpc75*)

  4277.             cpuflags="-mcpu=750"

  4278.             disable altivec

  4279.         ;;

  4280.         g4|745*|ppc745*|powerpc745*)

  4281.             cpuflags="-mcpu=7450"

  4282.             disable vsx

  4283.         ;;

  4284.         74*|ppc74*|powerpc74*)

  4285.             cpuflags="-mcpu=7400"

  4286.             disable vsx

  4287.         ;;

  4288.         g5|970|ppc970|powerpc970)

  4289.             cpuflags="-mcpu=970"

  4290.             disable vsx

  4291.         ;;

  4292.         power[3-6]*)

  4293.             cpuflags="-mcpu=$cpu"

  4294.             disable vsx

  4295.         ;;

  4296.         power[7-8]*)

  4297.             cpuflags="-mcpu=$cpu"

  4298.         ;;

  4299.         cell)

  4300.             cpuflags="-mcpu=cell"

  4301.             enable ldbrx

  4302.             disable vsx

  4303.         ;;

  4304.         e500mc)

  4305.             cpuflags="-mcpu=e500mc"

  4306.             disable altivec

  4307.         ;;

  4308.         e500v2)

  4309.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4310.             disable altivec

  4311.             disable dcbzl

  4312.         ;;

  4313.         e500)

  4314.             cpuflags="-mcpu=8540 -mhard-float"

  4315.             disable altivec

  4316.             disable dcbzl

  4317.         ;;

  4318.     esac

  4319. 

  4320. elif enabled sparc; then

  4321. 

  4322.     case $cpu in

  4323.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4324.             cpuflags="-mcpu=$cpu"

  4325.         ;;

  4326.         ultrasparc*|niagara[234])

  4327.             cpuflags="-mcpu=$cpu"

  4328.         ;;

  4329.     esac

  4330. 

  4331. elif enabled x86; then

  4332. 

  4333.     case $cpu in

  4334.         i[345]86|pentium)

  4335.             cpuflags="-march=$cpu"

  4336.             disable i686

  4337.             disable mmx

  4338.         ;;

  4339.         # targets that do NOT support nopl and conditional mov (cmov)

  4340.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4341.             cpuflags="-march=$cpu"

  4342.             disable i686

  4343.         ;;

  4344.         # targets that do support nopl and conditional mov (cmov)

  4345.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4346.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)

  4347.             cpuflags="-march=$cpu"

  4348.             enable i686

  4349.             enable fast_cmov

  4350.         ;;

  4351.         # targets that do support conditional mov but on which it's slow

  4352.         pentium4|pentium4m|prescott|nocona)

  4353.             cpuflags="-march=$cpu"

  4354.             enable i686

  4355.             disable fast_cmov

  4356.         ;;

  4357.     esac

  4358. 

  4359. fi

  4360. 

  4361. if [ "$cpu" != generic ]; then

  4362.     add_cflags  $cpuflags

  4363.     add_asflags $cpuflags

  4364.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4365. fi

  4366. 

  4367. # compiler sanity check

  4368. check_exec <<EOF

  4369. int main(void){ return 0; }

  4370. EOF

  4371. if test "$?" != 0; then

  4372.     echo "$cc is unable to create an executable file."

  4373.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4374.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4375.         echo "Only do this if you know what cross compiling means."

  4376.     fi

  4377.     die "C compiler test failed."

  4378. fi

  4379. 

  4380. add_cppflags -D_ISOC99_SOURCE

  4381. add_cxxflags -D__STDC_CONSTANT_MACROS

  4382. check_cflags -std=c99

  4383. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4384. #include <stdlib.h>

  4385. EOF

  4386. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4387. #include <stdlib.h>

  4388. EOF

  4389. 

  4390. add_host_cppflags -D_ISOC99_SOURCE

  4391. check_host_cflags -std=c99

  4392. check_host_cflags -Wall

  4393. check_host_cflags -O3

  4394. 

  4395. check_64bit(){

  4396.     arch32=$1

  4397.     arch64=$2

  4398.     expr=$3

  4399.     check_code cc "" "int test[2*($expr) - 1]" &&

  4400.         subarch=$arch64 || subarch=$arch32

  4401. }

  4402. 

  4403. case "$arch" in

  4404.     aarch64|alpha|ia64)

  4405.         spic=$shared

  4406.     ;;

  4407.     mips)

  4408.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4409.         spic=$shared

  4410.     ;;

  4411.     parisc)

  4412.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4413.         spic=$shared

  4414.     ;;

  4415.     ppc)

  4416.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4417.         spic=$shared

  4418.     ;;

  4419.     s390)

  4420.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4421.         spic=$shared

  4422.     ;;

  4423.     sparc)

  4424.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4425.         spic=$shared

  4426.     ;;

  4427.     x86)

  4428.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4429.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4430.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4431.             subarch=x86_64

  4432.         if test "$subarch" = "x86_64"; then

  4433.             spic=$shared

  4434.         fi

  4435.     ;;

  4436.     ppc)

  4437.         check_cc <<EOF && subarch="ppc64"

  4438.         int test[(int)sizeof(char*) - 7];

  4439. EOF

  4440.     ;;

  4441. esac

  4442. 

  4443. enable $subarch

  4444. enabled spic && enable_weak pic

  4445. 

  4446. # OS specific

  4447. case $target_os in

  4448.     aix)

  4449.         SHFLAGS=-shared

  4450.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4451.         enabled shared && add_ldflags -Wl,-brtl

  4452.         ;;

  4453.     android)

  4454.         disable symver

  4455.         enable section_data_rel_ro

  4456.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4457.         SLIB_INSTALL_LINKS=

  4458.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4459.         ;;

  4460.     haiku)

  4461.         prefix_default="/boot/common"

  4462.         network_extralibs="-lnetwork"

  4463.         host_libs=

  4464.         ;;

  4465.     sunos)

  4466.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4467.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4468.         network_extralibs="-lsocket -lnsl"

  4469.         add_cppflags -D__EXTENSIONS__

  4470.         # When using suncc to build, the Solaris linker will mark

  4471.         # an executable with each instruction set encountered by

  4472.         # the Solaris assembler.  As our libraries contain their own

  4473.         # guards for processor-specific code, instead suppress

  4474.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4475.         enabled_all suncc x86 &&

  4476.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4477.             add_ldflags -Wl,-M,mapfile

  4478.         nm_default='nm -P -g'

  4479.         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'

  4480.         ;;

  4481.     netbsd)

  4482.         disable symver

  4483.         oss_indev_extralibs="-lossaudio"

  4484.         oss_outdev_extralibs="-lossaudio"

  4485.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4486.         ;;

  4487.     openbsd|bitrig)

  4488.         disable symver

  4489.         SHFLAGS='-shared'

  4490.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4491.         SLIB_INSTALL_LINKS=

  4492.         oss_indev_extralibs="-lossaudio"

  4493.         oss_outdev_extralibs="-lossaudio"

  4494.         ;;

  4495.     dragonfly)

  4496.         disable symver

  4497.         ;;

  4498.     freebsd)

  4499.         ;;

  4500.     bsd/os)

  4501.         add_extralibs -lpoll -lgnugetopt

  4502.         strip="strip -d"

  4503.         ;;

  4504.     darwin)

  4505.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4506.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4507.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4508.         strip="${strip} -x"

  4509.         add_ldflags -Wl,-dynamic,-search_paths_first

  4510.         SLIBSUF=".dylib"

  4511.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4512.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4513.         objformat="macho"

  4514.         enabled x86_64 && objformat="macho64"

  4515.         enabled_any pic shared x86_64 ||

  4516.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4517.         ;;

  4518.     msys*)

  4519.         die "Native MSYS builds are discouraged, please use the MINGW environment.";

  4520.         ;;

  4521.     mingw32*|mingw64*)

  4522.         if test $target_os = "mingw32ce"; then

  4523.             disable network

  4524.         else

  4525.             target_os=mingw32

  4526.         fi

  4527.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4528.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4529.         LIBTARGET=i386

  4530.         if enabled x86_64; then

  4531.             LIBTARGET="i386:x86-64"

  4532.         elif enabled arm; then

  4533.             LIBTARGET=arm-wince

  4534.         fi

  4535.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4536.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4537.         shlibdir_default="$bindir_default"

  4538.         SLIBPREF=""

  4539.         SLIBSUF=".dll"

  4540.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4541.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4542.         dlltool="${cross_prefix}dlltool"

  4543.         if check_cmd lib.exe -list; then

  4544.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4545.             if enabled x86_64; then

  4546.                 LIBTARGET=x64

  4547.             fi

  4548.         elif check_cmd $dlltool --version; then

  4549.             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)'

  4550.         fi

  4551.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4552.         SLIB_INSTALL_LINKS=

  4553.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4554.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4555.         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'

  4556.         objformat="win32"

  4557.         ranlib=:

  4558.         enable dos_paths

  4559.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4560.         # Lets work around some stupidity in binutils.

  4561.         # ld will strip relocations from executables even though we need them

  4562.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4563.         # however ld then forgets what the entry point should be (oops) so we

  4564.         # have to manually (re)set it.

  4565.         if enabled x86_32; then

  4566.             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4567.         elif enabled x86_64; then

  4568.             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4569.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4570.             # Set image base >4GB for extra entropy with HEASLR

  4571.             add_ldexeflags -Wl,--image-base,0x140000000

  4572.             append SHFLAGS -Wl,--image-base,0x180000000

  4573.         fi

  4574.         ;;

  4575.     win32|win64)

  4576.         disable symver

  4577.         if enabled shared; then

  4578.             # Link to the import library instead of the normal static library

  4579.             # for shared libs.

  4580.             LD_LIB='%.lib'

  4581.             # Cannot build both shared and static libs with MSVC or icl.

  4582.             disable static

  4583.         fi

  4584.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4585.         shlibdir_default="$bindir_default"

  4586.         SLIBPREF=""

  4587.         SLIBSUF=".dll"

  4588.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4589.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4590.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4591.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4592.         SLIB_INSTALL_LINKS=

  4593.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4594.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4595.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4596.         objformat="win32"

  4597.         ranlib=:

  4598.         enable dos_paths

  4599.         ;;

  4600.     cygwin*)

  4601.         target_os=cygwin

  4602.         shlibdir_default="$bindir_default"

  4603.         SLIBPREF="cyg"

  4604.         SLIBSUF=".dll"

  4605.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4606.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4607.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4608.         SLIB_INSTALL_LINKS=

  4609.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4610.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4611.         objformat="win32"

  4612.         enable dos_paths

  4613.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4614.         ;;

  4615.     *-dos|freedos|opendos)

  4616.         network_extralibs="-lsocket"

  4617.         objformat="coff"

  4618.         enable dos_paths

  4619.         add_cppflags -U__STRICT_ANSI__

  4620.         ;;

  4621.     linux)

  4622.         enable dv1394

  4623.         enable section_data_rel_ro

  4624.         ;;

  4625.     irix*)

  4626.         target_os=irix

  4627.         ranlib="echo ignoring ranlib"

  4628.         ;;

  4629.     os/2*)

  4630.         strip="lxlite -CS"

  4631.         ln_s="cp -f"

  4632.         objformat="aout"

  4633.         add_cppflags -D_GNU_SOURCE

  4634.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4635.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4636.         LIBSUF="_s.a"

  4637.         SLIBPREF=""

  4638.         SLIBSUF=".dll"

  4639.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'

  4640.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4641.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \

  4642.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \

  4643.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \

  4644.             echo EXPORTS >> $(SUBDIR)$(NAME).def; \

  4645.             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'

  4646.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \

  4647.             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'

  4648.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'

  4649.         enable dos_paths

  4650.         enable_weak os2threads

  4651.         ;;

  4652.     gnu/kfreebsd)

  4653.         add_cppflags -D_BSD_SOURCE

  4654.         ;;

  4655.     gnu)

  4656.         ;;

  4657.     qnx)

  4658.         add_cppflags -D_QNX_SOURCE

  4659.         network_extralibs="-lsocket"

  4660.         ;;

  4661.     symbian)

  4662.         SLIBSUF=".dll"

  4663.         enable dos_paths

  4664.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4665.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4666.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4667.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4668.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4669.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4670.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4671.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4672.         ;;

  4673.     osf1)

  4674.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4675.         ;;

  4676.     minix)

  4677.         ;;

  4678.     plan9)

  4679.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4680.                      -D_REENTRANT_SOURCE        \

  4681.                      -D_RESEARCH_SOURCE         \

  4682.                      -DFD_SETSIZE=96            \

  4683.                      -DHAVE_SOCK_OPTS

  4684.         add_compat strtod.o strtod=avpriv_strtod

  4685.         network_extralibs='-lbsd'

  4686.         exeobjs=compat/plan9/main.o

  4687.         disable ffserver

  4688.         cp_f='cp'

  4689.         ;;

  4690.     none)

  4691.         ;;

  4692.     *)

  4693.         die "Unknown OS '$target_os'."

  4694.         ;;

  4695. esac

  4696. 

  4697. # determine libc flavour

  4698. 

  4699. probe_libc(){

  4700.     pfx=$1

  4701.     pfx_no_=${pfx%_}

  4702.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4703.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4704.         eval ${pfx}libc_type=uclibc

  4705.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4706.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4707.         eval ${pfx}libc_type=glibc

  4708.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4709.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4710.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4711.         eval ${pfx}libc_type=newlib

  4712.         add_${pfx}cppflags -U__STRICT_ANSI__

  4713.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4714.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4715.         eval ${pfx}libc_type=mingw64

  4716.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4717.             add_compat msvcrt/snprintf.o

  4718.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4719.         fi

  4720.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4721.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4722.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4723.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4724.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4725.         eval ${pfx}libc_type=mingw32

  4726.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4727.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4728.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4729.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4730.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4731.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4732.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4733.         eval ${pfx}libc_type=msvcrt

  4734.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4735.             if [ "$pfx" = host_ ]; then

  4736.                 add_host_cppflags -Dsnprintf=_snprintf

  4737.             else

  4738.                 add_compat strtod.o strtod=avpriv_strtod

  4739.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4740.                                              _snprintf=avpriv_snprintf  \

  4741.                                              vsnprintf=avpriv_vsnprintf

  4742.             fi

  4743.         fi

  4744.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4745.         # 0x601 by default unless something else is set by the user.

  4746.         # This can easily lead to us detecting functions only present

  4747.         # in such new versions and producing binaries requiring windows 7.0.

  4748.         # Therefore explicitly set the default to XP unless the user has

  4749.         # set something else on the command line.

  4750.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4751.         # family. For these cases, configure is free to use any functions

  4752.         # found in the SDK headers by default. (Alternatively, we could force

  4753.         # _WIN32_WINNT to 0x0602 in that case.)

  4754.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4755.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4756. #ifdef WINAPI_FAMILY

  4757. #include <winapifamily.h>

  4758. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4759. #error not desktop

  4760. #endif

  4761. #endif

  4762. EOF

  4763.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4764.         eval ${pfx}libc_type=klibc

  4765.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4766.         eval ${pfx}libc_type=bionic

  4767.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4768.         eval ${pfx}libc_type=solaris

  4769.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4770.     fi

  4771.     check_${pfx}cc <<EOF

  4772. #include <time.h>

  4773. void *v = localtime_r;

  4774. EOF

  4775. 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

  4776. #include <time.h>

  4777. void *v = localtime_r;

  4778. EOF

  4779. 

  4780. }

  4781. 

  4782. probe_libc

  4783. test -n "$libc_type" && enable libc_$libc_type

  4784. probe_libc host_

  4785. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  4786. 

  4787. case $libc_type in

  4788.     bionic)

  4789.         add_compat strtod.o strtod=avpriv_strtod

  4790.         ;;

  4791. esac

  4792. 

  4793. # hacks for compiler/libc/os combinations

  4794. 

  4795. if enabled_all tms470 libc_glibc; then

  4796.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  4797.     add_cppflags -D__USER_LABEL_PREFIX__=

  4798.     add_cppflags -D__builtin_memset=memset

  4799.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  4800.     add_cflags   -pds=48    # incompatible redefinition of macro

  4801. fi

  4802. 

  4803. if enabled_all ccc libc_glibc; then

  4804.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  4805. fi

  4806. 

  4807. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  4808.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  4809. 

  4810. esc(){

  4811.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  4812. }

  4813. 

  4814. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  4815. 

  4816. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  4817. 

  4818. set_default libdir

  4819. : ${shlibdir_default:="$libdir"}

  4820. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  4821. 

  4822. set_default $PATHS_LIST

  4823. set_default nm

  4824. 

  4825. # we need to build at least one lib type

  4826. if ! enabled_any static shared; then

  4827.     cat <<EOF

  4828. At least one library type must be built.

  4829. Specify --enable-static to build the static libraries or --enable-shared to

  4830. build the shared libraries as well. To only build the shared libraries specify

  4831. --disable-static in addition to --enable-shared.

  4832. EOF

  4833.     exit 1;

  4834. fi

  4835. 

  4836. die_license_disabled() {

  4837.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  4838. }

  4839. 

  4840. die_license_disabled_gpl() {

  4841.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  4842. }

  4843. 

  4844. die_license_disabled gpl frei0r

  4845. die_license_disabled gpl libcdio

  4846. die_license_disabled gpl librubberband

  4847. die_license_disabled gpl libsmbclient

  4848. die_license_disabled gpl libutvideo

  4849. die_license_disabled gpl libvidstab

  4850. die_license_disabled gpl libx264

  4851. die_license_disabled gpl libx265

  4852. die_license_disabled gpl libxavs

  4853. die_license_disabled gpl libxvid

  4854. die_license_disabled gpl libzvbi

  4855. die_license_disabled gpl x11grab

  4856. 

  4857. die_license_disabled nonfree libaacplus

  4858. die_license_disabled nonfree libfaac

  4859. die_license_disabled nonfree nvenc

  4860. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  4861. enabled gpl && die_license_disabled_gpl nonfree openssl

  4862. 

  4863. die_license_disabled version3 gmp

  4864. die_license_disabled version3 libopencore_amrnb

  4865. die_license_disabled version3 libopencore_amrwb

  4866. die_license_disabled version3 libsmbclient

  4867. die_license_disabled version3 libvo_aacenc

  4868. die_license_disabled version3 libvo_amrwbenc

  4869. 

  4870. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  4871. 

  4872. disabled optimizations || check_cflags -fomit-frame-pointer

  4873. 

  4874. enable_weak_pic() {

  4875.     disabled pic && return

  4876.     enable pic

  4877.     add_cppflags -DPIC

  4878.     case "$target_os" in

  4879.     mingw*|cygwin*)

  4880.         ;;

  4881.     *)

  4882.         add_cflags -fPIC

  4883.         ;;

  4884.     esac

  4885.     add_asflags  -fPIC

  4886. }

  4887. 

  4888. enabled pic && enable_weak_pic

  4889. 

  4890. check_cc <<EOF || die "Symbol mangling check failed."

  4891. int ff_extern;

  4892. EOF

  4893. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  4894. extern_prefix=${sym%%ff_extern*}

  4895. 

  4896. check_cc <<EOF && enable_weak inline_asm

  4897. void foo(void) { __asm__ volatile ("" ::); }

  4898. EOF

  4899. 

  4900. _restrict=

  4901. for restrict_keyword in restrict __restrict__ __restrict; do

  4902.     check_cc <<EOF && _restrict=$restrict_keyword && break

  4903. void foo(char * $restrict_keyword p);

  4904. EOF

  4905. done

  4906. 

  4907. check_cc <<EOF && enable pragma_deprecated

  4908. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  4909. EOF

  4910. 

  4911. check_cc <<EOF && enable attribute_packed

  4912. struct { int x; } __attribute__((packed)) x;

  4913. EOF

  4914. 

  4915. check_cc <<EOF && enable attribute_may_alias

  4916. union { int x; } __attribute__((may_alias)) x;

  4917. EOF

  4918. 

  4919. check_cc <<EOF || die "endian test failed"

  4920. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  4921. EOF

  4922. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  4923. 

  4924. if ! enabled ppc64 || enabled bigendian; then

  4925.     disable vsx

  4926. fi

  4927. 

  4928. check_gas() {

  4929.     log "check_gas using '$as' as AS"

  4930.     # :vararg is used on aarch64, arm and ppc altivec

  4931.     check_as <<EOF || return 1

  4932. .macro m n, y:vararg=0

  4933. \n: .int \y

  4934. .endm

  4935. m x

  4936. EOF

  4937.     # .altmacro is only used in arm asm

  4938.     ! enabled arm || check_as <<EOF || return 1

  4939. .altmacro

  4940. EOF

  4941.     enable gnu_as

  4942.     return 0

  4943. }

  4944. 

  4945. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  4946.     nogas=:

  4947.     enabled_any arm aarch64 && nogas=die

  4948.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  4949.     as_noop=-v

  4950. 

  4951.     case $as_type in

  4952.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  4953.         gcc)  gaspp_as_type=gas ;;

  4954.         *)    gaspp_as_type=$as_type ;;

  4955.     esac

  4956. 

  4957.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  4958. 

  4959.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  4960.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  4961.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  4962. 

  4963.     if ! check_gas ; then

  4964.         as=${gas:=$as}

  4965.         check_gas || \

  4966.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  4967.     fi

  4968. 

  4969.     check_as <<EOF && enable as_func

  4970. .func test

  4971. .endfunc

  4972. EOF

  4973. fi

  4974. 

  4975. check_inline_asm inline_asm_labels '"1:\n"'

  4976. 

  4977. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  4978. 

  4979. if enabled aarch64; then

  4980.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  4981.     # internal assembler in clang 3.3 does not support this instruction

  4982.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  4983.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  4984. 

  4985.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  4986. 

  4987. elif enabled alpha; then

  4988. 

  4989.     check_cflags -mieee

  4990. 

  4991. elif enabled arm; then

  4992. 

  4993.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  4994. 

  4995.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  4996. float func(float a, float b){ return a+b; }

  4997. EOF

  4998. 

  4999.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5000. 

  5001.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5002.         enable vfp_args

  5003.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5004.         enable vfp_args

  5005.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5006.         case "${cross_prefix:-$cc}" in

  5007.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5008.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5009. __asm__ (".eabi_attribute 28, 1");

  5010. int main(void) { return 0; }

  5011. EOF

  5012.         esac

  5013.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5014.     fi

  5015. 

  5016.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5017.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5018.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5019.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5020.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5021.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5022.     enabled setend  && check_insn setend  'setend be'

  5023. 

  5024.     [ $target_os = linux ] || [ $target_os = android ] ||

  5025.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5026.             $ARCH_EXT_LIST_ARM

  5027. 

  5028.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5029. 

  5030.     check_as <<EOF && enable as_dn_directive

  5031. ra .dn d0.i16

  5032. .unreq ra

  5033. EOF

  5034. 

  5035.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5036.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  5037. .object_arch armv4

  5038. EOF

  5039. 

  5040.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5041. 

  5042. elif enabled mips; then

  5043. 

  5044.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5045.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5046.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5047. 

  5048.     # Enable minimum ISA based on selected options

  5049.     if enabled mips64 && (enabled mipsdsp || enabled mipsdspr2); then

  5050.         add_cflags "-mips64r2"

  5051.         add_asflags "-mips64r2"

  5052.     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then

  5053.         add_cflags "-mips64"

  5054.         add_asflags "-mips64"

  5055.     elif enabled mipsdsp || enabled mipsdspr2; then

  5056.         add_cflags "-mips32r2 -mfp32"

  5057.         add_asflags "-mips32r2 -mfp32"

  5058.     fi

  5059. 

  5060.     enabled mipsdsp && add_cflags "-mdsp" && add_asflags "-mdsp" &&

  5061.      check_inline_asm mipsdsp '"addu.qb $t0, $t1, $t2"'

  5062.     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&

  5063.      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'

  5064.     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&

  5065.      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'

  5066.     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&

  5067.      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'

  5068. 

  5069.     enabled msa && add_asflags "-mmsa"

  5070. 

  5071. elif enabled parisc; then

  5072. 

  5073.     if enabled gcc; then

  5074.         case $($cc -dumpversion) in

  5075.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5076.         esac

  5077.     fi

  5078. 

  5079. elif enabled ppc; then

  5080. 

  5081.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5082. 

  5083.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5084.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5085.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5086.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5087. 

  5088.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5089.     if enabled altivec; then

  5090.         check_cflags -maltivec -mabi=altivec &&

  5091.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5092.         check_cflags -faltivec

  5093. 

  5094.         # check if our compiler supports Motorola AltiVec C API

  5095.         check_cc <<EOF || disable altivec

  5096. $inc_altivec_h

  5097. int main(void) {

  5098.     vector signed int v1 = (vector signed int) { 0 };

  5099.     vector signed int v2 = (vector signed int) { 1 };

  5100.     v1 = vec_add(v1, v2);

  5101.     return 0;

  5102. }

  5103. EOF

  5104. 

  5105.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5106.     fi

  5107. 

  5108.     if enabled vsx; then

  5109.         check_cflags -mvsx &&

  5110.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5111.     fi

  5112. 

  5113.     if enabled power8; then

  5114.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5115.     fi

  5116. 

  5117. elif enabled x86; then

  5118. 

  5119.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5120.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5121. 

  5122.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5123. 

  5124.     # check whether EBP is available on x86

  5125.     # As 'i' is stored on the stack, this program will crash

  5126.     # if the base pointer is used to access it because the

  5127.     # base pointer is cleared in the inline assembly code.

  5128.     check_exec_crash <<EOF && enable ebp_available

  5129. volatile int i=0;

  5130. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5131. return i;

  5132. EOF

  5133. 

  5134.     # check whether EBX is available on x86

  5135.     check_inline_asm ebx_available '""::"b"(0)' &&

  5136.         check_inline_asm ebx_available '"":::"%ebx"'

  5137. 

  5138.     # check whether xmm clobbers are supported

  5139.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5140. 

  5141.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5142.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5143. 

  5144.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5145.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5146.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5147. 

  5148.     if ! disabled_any asm mmx yasm; then

  5149.         if check_cmd $yasmexe --version; then

  5150.             enabled x86_64 && yasm_extra="-m amd64"

  5151.             yasm_debug="-g dwarf2"

  5152.         elif check_cmd nasm -v; then

  5153.             yasmexe=nasm

  5154.             yasm_debug="-g -F dwarf"

  5155.             if enabled x86_64; then

  5156.                 case "$objformat" in

  5157.                     elf)   objformat=elf64 ;;

  5158.                     win32) objformat=win64 ;;

  5159.                 esac

  5160.             fi

  5161.         fi

  5162. 

  5163.         YASMFLAGS="-f $objformat $yasm_extra"

  5164.         enabled pic               && append YASMFLAGS "-DPIC"

  5165.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5166.         case "$objformat" in

  5167.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5168.         esac

  5169. 

  5170.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5171.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5172.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5173.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5174.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5175.         check_yasm "CPU amdnop" || disable cpunop

  5176.     fi

  5177. 

  5178.     case "$cpu" in

  5179.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5180.             disable fast_clz

  5181.         ;;

  5182.     esac

  5183. 

  5184. fi

  5185. 

  5186. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5187. 

  5188. check_ldflags -Wl,--as-needed

  5189. check_ldflags -Wl,-z,noexecstack

  5190. 

  5191. if check_func dlopen; then

  5192.     ldl=

  5193. elif check_func dlopen -ldl; then

  5194.     ldl=-ldl

  5195. fi

  5196. 

  5197. frei0r_filter_extralibs='$ldl'

  5198. frei0r_src_filter_extralibs='$ldl'

  5199. ladspa_filter_extralibs='$ldl'

  5200. nvenc_encoder_extralibs='$ldl'

  5201. 

  5202. if ! disabled network; then

  5203.     check_func getaddrinfo $network_extralibs

  5204.     check_func inet_aton $network_extralibs

  5205. 

  5206.     check_type netdb.h "struct addrinfo"

  5207.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5208.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5209.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5210.     check_type poll.h "struct pollfd"

  5211.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5212.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5213.     check_type netinet/in.h "struct sockaddr_in6"

  5214.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5215.     check_type "sys/types.h sys/socket.h" socklen_t

  5216. 

  5217.     # Prefer arpa/inet.h over winsock2

  5218.     if check_header arpa/inet.h ; then

  5219.         check_func closesocket

  5220.     elif check_header winsock2.h ; then

  5221.         check_func_headers winsock2.h closesocket -lws2 &&

  5222.             network_extralibs="-lws2" ||

  5223.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5224.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5225.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5226. 

  5227.         check_type ws2tcpip.h socklen_t

  5228.         check_type ws2tcpip.h "struct addrinfo"

  5229.         check_type ws2tcpip.h "struct group_source_req"

  5230.         check_type ws2tcpip.h "struct ip_mreq_source"

  5231.         check_type ws2tcpip.h "struct ipv6_mreq"

  5232.         check_type winsock2.h "struct pollfd"

  5233.         check_struct winsock2.h "struct sockaddr" sa_len

  5234.         check_type ws2tcpip.h "struct sockaddr_in6"

  5235.         check_type ws2tcpip.h "struct sockaddr_storage"

  5236.     else

  5237.         disable network

  5238.     fi

  5239. fi

  5240. 

  5241. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5242. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5243. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5244. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5245. check_builtin sarestart signal.h "SA_RESTART"

  5246. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5247. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5248. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5249. 

  5250. case "$custom_allocator" in

  5251.     jemalloc)

  5252.         # jemalloc by default does not use a prefix

  5253.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5254.     ;;

  5255.     tcmalloc)

  5256.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5257.         malloc_prefix=tc_

  5258.     ;;

  5259. esac

  5260. 

  5261. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5262. check_func  ${malloc_prefix}memalign            && enable memalign

  5263. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5264. 

  5265. check_func  access

  5266. check_func  arc4random

  5267. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5268. check_func  fcntl

  5269. check_func  fork

  5270. check_func  gethrtime

  5271. check_func  getopt

  5272. check_func  getrusage

  5273. check_func  gettimeofday

  5274. check_func  isatty

  5275. check_func  mach_absolute_time

  5276. check_func  mkstemp

  5277. check_func  mmap

  5278. check_func  mprotect

  5279. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5280. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5281. check_func  sched_getaffinity

  5282. check_func  setrlimit

  5283. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5284. check_func  strerror_r

  5285. check_func  sysconf

  5286. check_func  sysctl

  5287. check_func  usleep

  5288. 

  5289. check_func_headers conio.h kbhit

  5290. check_func_headers io.h setmode

  5291. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5292. check_func_headers stdlib.h getenv

  5293. check_func_headers sys/stat.h lstat

  5294. 

  5295. check_func_headers windows.h CoTaskMemFree -lole32

  5296. check_func_headers windows.h GetProcessAffinityMask

  5297. check_func_headers windows.h GetProcessTimes

  5298. check_func_headers windows.h GetSystemTimeAsFileTime

  5299. check_func_headers windows.h MapViewOfFile

  5300. check_func_headers windows.h PeekNamedPipe

  5301. check_func_headers windows.h SetConsoleTextAttribute

  5302. check_func_headers windows.h SetConsoleCtrlHandler

  5303. check_func_headers windows.h Sleep

  5304. check_func_headers windows.h VirtualAlloc

  5305. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5306. check_func_headers glob.h glob

  5307. enabled xlib &&

  5308.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5309. 

  5310. check_header direct.h

  5311. check_header dirent.h

  5312. check_header dlfcn.h

  5313. check_header d3d11.h

  5314. check_header dxva.h

  5315. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5316. check_header io.h

  5317. check_header libcrystalhd/libcrystalhd_if.h

  5318. check_header mach/mach_time.h

  5319. check_header malloc.h

  5320. check_header net/udplite.h

  5321. check_header poll.h

  5322. check_header sys/mman.h

  5323. check_header sys/param.h

  5324. check_header sys/resource.h

  5325. check_header sys/select.h

  5326. check_header sys/time.h

  5327. check_header sys/un.h

  5328. check_header termios.h

  5329. check_header unistd.h

  5330. check_header valgrind/valgrind.h

  5331. check_header vdpau/vdpau.h

  5332. check_header vdpau/vdpau_x11.h

  5333. check_header VideoDecodeAcceleration/VDADecoder.h

  5334. check_header VideoToolbox/VideoToolbox.h

  5335. check_header windows.h

  5336. check_header X11/extensions/XvMClib.h

  5337. check_header asm/types.h

  5338. 

  5339. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5340. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5341. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5342. check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5343. 

  5344. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5345. 

  5346. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5347. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5348. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5349. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5350. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5351. 

  5352. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5353. check_type "va/va.h" "VADecPictureParameterBufferVP9"

  5354. 

  5355. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5356. 

  5357. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5358. 

  5359. if ! disabled w32threads && ! enabled pthreads; then

  5360.     check_func_headers "windows.h process.h" _beginthreadex &&

  5361.         enable w32threads || disable w32threads

  5362.     if ! enabled w32threads && enabled winrt; then

  5363.         check_func_headers "windows.h" CreateThread &&

  5364.             enable w32threads || disable w32threads

  5365.     fi

  5366. fi

  5367. 

  5368. # check for some common methods of building with pthread support

  5369. # do this before the optional library checks as some of them require pthreads

  5370. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5371.     enable pthreads

  5372.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5373.         add_cflags -pthread

  5374.         add_extralibs -pthread

  5375.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5376.         add_cflags -pthreads

  5377.         add_extralibs -pthreads

  5378.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5379.         add_cflags -ldl -pthread

  5380.         add_extralibs -ldl -pthread

  5381.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5382.         add_extralibs -lpthreadGC2

  5383.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5384.         :

  5385.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5386.         disable pthreads

  5387.     fi

  5388.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5389. fi

  5390. 

  5391. 

  5392. if enabled pthreads; then

  5393.   check_func pthread_cancel

  5394. fi

  5395. 

  5396. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5397. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5398. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5399. 

  5400. check_lib math.h sin -lm && LIBM="-lm"

  5401. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5402. 

  5403. atan2f_args=2

  5404. copysign_args=2

  5405. hypot_args=2

  5406. ldexpf_args=2

  5407. powf_args=2

  5408. 

  5409. for func in $MATH_FUNCS; do

  5410.     eval check_mathfunc $func \${${func}_args:-1}

  5411. done

  5412. 

  5413. for func in $COMPLEX_FUNCS; do

  5414.     eval check_complexfunc $func \${${func}_args:-1}

  5415. done

  5416. 

  5417. # these are off by default, so fail if requested and not available

  5418. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5419. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5420.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5421. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5422.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5423.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5424. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5425. enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }

  5426. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5427. enabled gmp               && require2 gmp gmp.h mpz_export -lgmp

  5428. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5429. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5430. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5431. enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus

  5432. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5433. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5434. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5435. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5436.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5437.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5438. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5439. enabled libdcadec         && require_pkg_config "dcadec >= 0.1.0" libdcadec/dca_context.h dcadec_context_create

  5440. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5441. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5442.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5443.                                  warn "using libfdk without pkg-config"; } }

  5444. 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"

  5445. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5446. enabled fontconfig        && enable libfontconfig

  5447. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5448. enabled libfreetype       && require_libfreetype

  5449. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5450. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5451. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5452.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5453.                                done || die "ERROR: libgsm not found"; }

  5454. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5455. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get

  5456. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5457. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5458. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5459. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5460. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5461. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5462. enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader

  5463. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5464. enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5465.                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5466.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5467.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5468.                                die "ERROR: libopenjpeg not found"; }

  5469. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5470. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5471. enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init

  5472. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5473. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5474. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5475. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5476. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5477.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5478. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5479. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5480. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5481. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5482. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5483. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5484. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5485.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5486.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5487. enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++

  5488. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5489. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5490. enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc

  5491. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5492. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5493. 

  5494. enabled libvpx            && {

  5495.     enabled libvpx_vp8_decoder && {

  5496.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5497.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5498.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5499.     }

  5500.     enabled libvpx_vp8_encoder && {

  5501.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5502.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5503.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5504.     }

  5505.     enabled libvpx_vp9_decoder && {

  5506.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5507.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5508.                 disable libvpx_vp9_decoder;

  5509.     }

  5510.     enabled libvpx_vp9_encoder && {

  5511.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5512.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5513.                 disable libvpx_vp9_encoder;

  5514.     }

  5515.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5516.         die "libvpx enabled but no supported decoders found"

  5517.     fi

  5518. }

  5519. 

  5520. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5521. enabled libwebp           && {

  5522.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5523.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5524. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5525.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5526.                                  warn "using libx264 without pkg-config"; } } &&

  5527.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5528.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5529.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5530.                                enable libx262; }

  5531. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5532.                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||

  5533.                                die "ERROR: libx265 version must be >= 57."; }

  5534. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5535. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5536. enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version

  5537. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5538. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi

  5539. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5540.                                 { ! enabled cross_compile && {

  5541.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5542.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5543.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5544.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5545.                                die "ERROR: mmal not found"; }

  5546. enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers

  5547. enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&

  5548.                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||

  5549.                                die "ERROR: NVENC API version 4 or older is not supported"; } &&

  5550.                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }

  5551. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5552.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5553.                                die "ERROR: openal not found"; } &&

  5554.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5555.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5556. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5557.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5558.                                die "ERROR: opencl not found"; } &&

  5559.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5560.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5561.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5562. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5563.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5564.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5565.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5566.                                die "ERROR: opengl not found."

  5567.                              }

  5568. enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5569.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5570.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5571.                                die "ERROR: openssl not found"; }

  5572. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5573. 

  5574. # libdc1394 check

  5575. if enabled libdc1394; then

  5576.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5577.         enable libdc1394_2; } ||

  5578.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5579.         enable libdc1394_1; } ||

  5580.     die "ERROR: No version of libdc1394 found "

  5581. fi

  5582. 

  5583. if enabled gcrypt; then

  5584.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5585.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  5586.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  5587.         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)

  5588.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||

  5589.             die "ERROR: gcrypt not found"

  5590.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs

  5591.     else

  5592.         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  5593.     fi

  5594. fi

  5595. 

  5596. if ! disabled sdl; then

  5597.     SDL_CONFIG="${cross_prefix}sdl-config"

  5598.     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then

  5599.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5600.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5601.         enable sdl

  5602.     else

  5603.         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then

  5604.             sdl_cflags=$("${SDL_CONFIG}" --cflags)

  5605.             sdl_libs=$("${SDL_CONFIG}" --libs)

  5606.             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&

  5607.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5608.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5609.             enable sdl

  5610.         elif enabled sdl ; then

  5611.             die "ERROR: SDL not found"

  5612.         else

  5613.             disable sdl

  5614.         fi

  5615.     fi

  5616.     if test $target_os = "mingw32"; then

  5617.         sdl_libs="$sdl_libs -mconsole"

  5618.     fi

  5619. fi

  5620. enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs

  5621. 

  5622. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5623.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5624.     enable securetransport; }

  5625. 

  5626. disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&

  5627.                        enable schannel && add_extralibs -lSecur32; }

  5628. 

  5629. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5630. enabled makeinfo \

  5631.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5632.     && enable makeinfo_html || disable makeinfo_html

  5633. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5634. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5635. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5636. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5637. 

  5638. check_header linux/fb.h

  5639. check_header linux/videodev.h

  5640. check_header linux/videodev2.h

  5641. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5642. 

  5643. check_header sys/videoio.h

  5644. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5645. 

  5646. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5647. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5648. # w32api 3.12 had it defined wrong

  5649. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5650. 

  5651. check_type "dshow.h" IBaseFilter

  5652. 

  5653. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5654. { check_header dev/bktr/ioctl_meteor.h &&

  5655.   check_header dev/bktr/ioctl_bt848.h; } ||

  5656. { check_header machine/ioctl_meteor.h &&

  5657.   check_header machine/ioctl_bt848.h; } ||

  5658. { check_header dev/video/meteor/ioctl_meteor.h &&

  5659.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5660. check_header dev/ic/bt8xx.h

  5661. 

  5662. check_header sndio.h

  5663. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5664.     enable_safe sys/soundcard.h

  5665. else

  5666.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5667.     #include <sys/soundcard.h>

  5668.     audio_buf_info abc;

  5669. EOF

  5670. fi

  5671. check_header soundcard.h

  5672. 

  5673. enabled_any alsa_indev alsa_outdev &&

  5674.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5675. 

  5676. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&

  5677.     check_func jack_port_get_latency_range -ljack

  5678. 

  5679. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5680. 

  5681. if enabled libcdio; then

  5682.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5683.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5684.     die "ERROR: No usable libcdio/cdparanoia found"

  5685. fi

  5686. 

  5687. enabled xlib &&

  5688.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5689. 

  5690. if ! disabled libxcb; then

  5691.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5692.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5693.     } && disable x11grab && enable libxcb

  5694. 

  5695. if enabled libxcb; then

  5696.     disabled libxcb_shm || {

  5697.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5698.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5699.         } && check_header sys/shm.h && enable libxcb_shm; }

  5700. 

  5701.     disabled libxcb_xfixes || {

  5702.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5703.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5704.         } && enable libxcb_xfixes; }

  5705. 

  5706.     disabled libxcb_shape || {

  5707.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5708.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5709.         } && enable libxcb_shape; }

  5710. 

  5711.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5712.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5713. fi

  5714. fi

  5715. 

  5716. if enabled x11grab; then

  5717.     enabled xlib || die "ERROR: Xlib not found"

  5718.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5719.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5720. fi

  5721. 

  5722. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5723. 

  5724. enabled dxva2api_h &&

  5725.     check_cc <<EOF && enable dxva2api_cobj

  5726. #define _WIN32_WINNT 0x0600

  5727. #define COBJMACROS

  5728. #include <windows.h>

  5729. #include <d3d9.h>

  5730. #include <dxva2api.h>

  5731. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5732. EOF

  5733. 

  5734. enabled vaapi &&

  5735.     check_lib va/va.h vaInitialize -lva ||

  5736.     disable vaapi

  5737. 

  5738. enabled vaapi && enabled xlib &&

  5739.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  5740.     enable vaapi_x11

  5741. 

  5742. enabled vdpau &&

  5743.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  5744.     disable vdpau

  5745. 

  5746. enabled vdpau && enabled xlib &&

  5747.     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  5748.     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&

  5749.     enable vdpau_x11

  5750. 

  5751. # Funny iconv installations are not unusual, so check it after all flags have been set

  5752. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  5753. 

  5754. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  5755. 

  5756. # add some useful compiler flags if supported

  5757. check_cflags -Wdeclaration-after-statement

  5758. check_cflags -Wall

  5759. check_cflags -Wdisabled-optimization

  5760. check_cflags -Wpointer-arith

  5761. check_cflags -Wredundant-decls

  5762. check_cflags -Wwrite-strings

  5763. check_cflags -Wtype-limits

  5764. check_cflags -Wundef

  5765. check_cflags -Wmissing-prototypes

  5766. check_cflags -Wno-pointer-to-int-cast

  5767. check_cflags -Wstrict-prototypes

  5768. check_cflags -Wempty-body

  5769. enabled extra_warnings && check_cflags -Winline

  5770. enabled extra_warnings && check_cflags -Wcast-qual

  5771. 

  5772. check_disable_warning(){

  5773.     warning_flag=-W${1#-Wno-}

  5774.     test_cflags $warning_flag && add_cflags $1

  5775. }

  5776. 

  5777. check_disable_warning -Wno-parentheses

  5778. check_disable_warning -Wno-switch

  5779. check_disable_warning -Wno-format-zero-length

  5780. check_disable_warning -Wno-pointer-sign

  5781. 

  5782. # add some linker flags

  5783. check_ldflags -Wl,--warn-common

  5784. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  5785. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  5786. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  5787. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  5788. 

  5789. # add some strip flags

  5790. # -wN '..@*' is more selective than -x, but not available everywhere.

  5791. check_stripflags -wN \'..@*\' || check_stripflags -x

  5792. 

  5793. enabled neon_clobber_test &&

  5794.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5795.                   -Wl,--wrap,avcodec_decode_audio4      \

  5796.                   -Wl,--wrap,avcodec_decode_video2      \

  5797.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5798.                   -Wl,--wrap,avcodec_encode_audio2      \

  5799.                   -Wl,--wrap,avcodec_encode_video2      \

  5800.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5801.                   -Wl,--wrap,swr_convert                \

  5802.                   -Wl,--wrap,avresample_convert ||

  5803.     disable neon_clobber_test

  5804. 

  5805. enabled xmm_clobber_test &&

  5806.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5807.                   -Wl,--wrap,avcodec_decode_audio4      \

  5808.                   -Wl,--wrap,avcodec_decode_video2      \

  5809.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5810.                   -Wl,--wrap,avcodec_encode_audio2      \

  5811.                   -Wl,--wrap,avcodec_encode_video2      \

  5812.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5813.                   -Wl,--wrap,swr_convert                \

  5814.                   -Wl,--wrap,avresample_convert         \

  5815.                   -Wl,--wrap,sws_scale ||

  5816.     disable xmm_clobber_test

  5817. 

  5818. echo "X { local: *; };" > $TMPV

  5819. if test_ldflags -Wl,--version-script,$TMPV; then

  5820.     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'

  5821. elif test_ldflags -Wl,-M,$TMPV; then

  5822.     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'

  5823. fi

  5824. 

  5825. check_cc <<EOF && enable symver_asm_label

  5826. void ff_foo(void) __asm__ ("av_foo@VERSION");

  5827. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  5828. EOF

  5829.     check_cc <<EOF && enable symver_gnu_asm

  5830. __asm__(".symver ff_foo,av_foo@VERSION");

  5831. void ff_foo(void) {}

  5832. EOF

  5833. 

  5834. if [ -z "$optflags" ]; then

  5835.     if enabled small; then

  5836.         optflags=$cflags_size

  5837.     elif enabled optimizations; then

  5838.         optflags=$cflags_speed

  5839.     else

  5840.         optflags=$cflags_noopt

  5841.     fi

  5842. fi

  5843. 

  5844. check_optflags(){

  5845.     check_cflags "$@"

  5846.     enabled lto && check_ldflags "$@"

  5847. }

  5848. 

  5849. 

  5850. if enabled lto; then

  5851.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  5852.     check_cflags  -flto

  5853.     check_ldflags -flto $cpuflags

  5854.     disable inline_asm_direct_symbol_refs

  5855. fi

  5856. 

  5857. check_optflags $optflags

  5858. check_optflags -fno-math-errno

  5859. check_optflags -fno-signed-zeros

  5860. 

  5861. enabled ftrapv && check_cflags -ftrapv

  5862. 

  5863. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  5864. int x;

  5865. EOF

  5866. 

  5867. 

  5868. if enabled icc; then

  5869.     # Just warnings, no remarks

  5870.     check_cflags -w1

  5871.     # -wd: Disable following warnings

  5872.     # 144, 167, 556: -Wno-pointer-sign

  5873.     # 188: enumerated type mixed with another type

  5874.     # 1292: attribute "foo" ignored

  5875.     # 1419: external declaration in primary source file

  5876.     # 10006: ignoring unknown option -fno-signed-zeros

  5877.     # 10148: ignoring unknown option -Wno-parentheses

  5878.     # 10156: ignoring option '-W'; no argument required

  5879.     # 13200: No EMMS instruction before call to function

  5880.     # 13203: No EMMS instruction before return from function

  5881.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  5882.     # 11030: Warning unknown option --as-needed

  5883.     # 10156: ignoring option '-export'; no argument required

  5884.     check_ldflags -wd10156,11030

  5885.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  5886.     enable ebp_available

  5887.     # The test above does not test linking

  5888.     enabled lto && disable symver_asm_label

  5889.     if enabled x86_32; then

  5890.         icc_version=$($cc -dumpversion)

  5891.         test ${icc_version%%.*} -ge 11 &&

  5892.             check_cflags -falign-stack=maintain-16-byte ||

  5893.             disable aligned_stack

  5894.     fi

  5895. elif enabled ccc; then

  5896.     # disable some annoying warnings

  5897.     add_cflags -msg_disable bitnotint

  5898.     add_cflags -msg_disable mixfuncvoid

  5899.     add_cflags -msg_disable nonstandcast

  5900.     add_cflags -msg_disable unsupieee

  5901. elif enabled gcc; then

  5902.     check_optflags -fno-tree-vectorize

  5903.     check_cflags -Werror=format-security

  5904.     check_cflags -Werror=implicit-function-declaration

  5905.     check_cflags -Werror=missing-prototypes

  5906.     check_cflags -Werror=return-type

  5907.     check_cflags -Werror=vla

  5908.     check_cflags -Wformat

  5909.     check_cflags -fdiagnostics-color=auto

  5910.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  5911. elif enabled llvm_gcc; then

  5912.     check_cflags -mllvm -stack-alignment=16

  5913. elif enabled clang; then

  5914.     check_cflags -mllvm -stack-alignment=16

  5915.     check_cflags -Qunused-arguments

  5916.     check_cflags -Werror=implicit-function-declaration

  5917.     check_cflags -Werror=missing-prototypes

  5918.     check_cflags -Werror=return-type

  5919. elif enabled cparser; then

  5920.     add_cflags -Wno-missing-variable-declarations

  5921.     add_cflags -Wno-empty-statement

  5922. elif enabled armcc; then

  5923.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  5924.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  5925.     # 2523: use of inline assembly is deprecated

  5926.     add_cflags -W${armcc_opt},--diag_suppress=2523

  5927.     add_cflags -W${armcc_opt},--diag_suppress=1207

  5928.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  5929.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  5930.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  5931.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  5932. elif enabled tms470; then

  5933.     add_cflags -pds=824 -pds=837

  5934.     disable inline_asm

  5935. elif enabled pathscale; then

  5936.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  5937. elif enabled_any msvc icl; then

  5938.     enabled x86_32 && disable aligned_stack

  5939.     enabled_all x86_32 debug && add_cflags -Oy-

  5940.     enabled debug && add_ldflags -debug

  5941.     enable pragma_deprecated

  5942.     if enabled icl; then

  5943.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  5944.         # (correctly) on icl 13.x.

  5945.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  5946.             add_cflags -Qansi-alias

  5947.         # Some inline asm is not compilable in debug

  5948.         if enabled debug; then

  5949.             disable ebp_available

  5950.             disable ebx_available

  5951.         fi

  5952.     fi

  5953.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  5954.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  5955.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  5956.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  5957.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  5958.     # MSVC 2013 and newer can handle it fine.

  5959.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  5960.     # happens in config.h.

  5961.     if [ $_restrict != restrict ]; then

  5962.         check_cc <<EOF || add_cflags -FIstdlib.h

  5963. __declspec($_restrict) void* foo(int);

  5964. EOF

  5965.     fi

  5966.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5967. fi

  5968. 

  5969. for pfx in "" host_; do

  5970.     varname=${pfx%_}cc_type

  5971.     eval "type=\$$varname"

  5972.     if [ $type = "msvc" ]; then

  5973.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  5974. static inline int foo(int a) { return a; }

  5975. EOF

  5976.     fi

  5977. done

  5978. 

  5979. case $as_type in

  5980.     clang)

  5981.         add_asflags -Qunused-arguments

  5982.     ;;

  5983. esac

  5984. 

  5985. case $ld_type in

  5986.     clang)

  5987.         check_ldflags -Qunused-arguments

  5988.     ;;

  5989. esac

  5990. 

  5991. case $target_os in

  5992.     osf1)

  5993.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  5994.     ;;

  5995.     plan9)

  5996.         add_cppflags -Dmain=plan9_main

  5997.     ;;

  5998. esac

  5999. 

  6000. enable frame_thread_encoder

  6001. 

  6002. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6003. 

  6004. check_deps $CONFIG_LIST       \

  6005.            $CONFIG_EXTRA      \

  6006.            $HAVE_LIST         \

  6007.            $ALL_COMPONENTS    \

  6008. 

  6009. 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"

  6010. 

  6011. 

  6012. if test $target_os = "haiku"; then

  6013.     disable memalign

  6014.     disable posix_memalign

  6015. fi

  6016. 

  6017. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  6018.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  6019.     enable dxva2_lib

  6020. 

  6021. ! enabled_any memalign posix_memalign aligned_malloc &&

  6022.     enabled simd_align_16 && enable memalign_hack

  6023. 

  6024. # add_dep lib dep

  6025. # -> enable ${lib}_deps_${dep}

  6026. # -> add $dep to ${lib}_deps only once

  6027. add_dep() {

  6028.     lib=$1

  6029.     dep=$2

  6030.     enabled "${lib}_deps_${dep}" && return 0

  6031.     enable  "${lib}_deps_${dep}"

  6032.     prepend "${lib}_deps" $dep

  6033. }

  6034. 

  6035. # merge deps lib components

  6036. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6037. merge_deps() {

  6038.     lib=$1

  6039.     shift

  6040.     for comp in $*; do

  6041.         enabled $comp || continue

  6042.         eval "dep=\"\$${comp}_deps\""

  6043.         for d in $dep; do

  6044.             add_dep $lib $d

  6045.         done

  6046.     done

  6047. }

  6048. 

  6049. merge_deps libavfilter $FILTER_LIST

  6050. 

  6051. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6052. 

  6053. for thread in $THREADS_LIST; do

  6054.     if enabled $thread; then

  6055.         test -n "$thread_type" &&

  6056.             die "ERROR: Only one thread type must be selected." ||

  6057.             thread_type="$thread"

  6058.     fi

  6059. done

  6060. 

  6061. enabled zlib && add_cppflags -DZLIB_CONST

  6062. 

  6063. # conditional library dependencies, in linking order

  6064. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6065. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6066. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  6067. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6068. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6069. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6070. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6071. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6072. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6073. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6074. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6075. enabled pan_filter          && prepend avfilter_deps "swresample"

  6076. enabled pp_filter           && prepend avfilter_deps "postproc"

  6077. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6078. enabled resample_filter && prepend avfilter_deps "avresample"

  6079. enabled sab_filter          && prepend avfilter_deps "swscale"

  6080. enabled scale_filter    && prepend avfilter_deps "swscale"

  6081. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6082. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6083. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6084. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6085. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6086. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6087. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6088. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6089. 

  6090. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6091. 

  6092. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6093. 

  6094. expand_deps(){

  6095.     lib_deps=${1}_deps

  6096.     eval "deps=\$$lib_deps"

  6097.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6098.     unique $lib_deps

  6099. }

  6100. 

  6101. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6102. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6103. 

  6104. map 'expand_deps $v' $LIBRARY_LIST

  6105. 

  6106. echo "install prefix            $prefix"

  6107. echo "source path               $source_path"

  6108. echo "C compiler                $cc"

  6109. echo "C library                 $libc_type"

  6110. if test "$host_cc" != "$cc"; then

  6111.     echo "host C compiler           $host_cc"

  6112.     echo "host C library            $host_libc_type"

  6113. fi

  6114. echo "ARCH                      $arch ($cpu)"

  6115. if test "$build_suffix" != ""; then

  6116.     echo "build suffix              $build_suffix"

  6117. fi

  6118. if test "$progs_suffix" != ""; then

  6119.     echo "progs suffix              $progs_suffix"

  6120. fi

  6121. if test "$extra_version" != ""; then

  6122.     echo "version string suffix     $extra_version"

  6123. fi

  6124. echo "big-endian                ${bigendian-no}"

  6125. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6126. if enabled x86; then

  6127.     echo "${yasmexe}                      ${yasm-no}"

  6128.     echo "MMX enabled               ${mmx-no}"

  6129.     echo "MMXEXT enabled            ${mmxext-no}"

  6130.     echo "3DNow! enabled            ${amd3dnow-no}"

  6131.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6132.     echo "SSE enabled               ${sse-no}"

  6133.     echo "SSSE3 enabled             ${ssse3-no}"

  6134.     echo "AESNI enabled             ${aesni-no}"

  6135.     echo "AVX enabled               ${avx-no}"

  6136.     echo "XOP enabled               ${xop-no}"

  6137.     echo "FMA3 enabled              ${fma3-no}"

  6138.     echo "FMA4 enabled              ${fma4-no}"

  6139.     echo "i686 features enabled     ${i686-no}"

  6140.     echo "CMOV is fast              ${fast_cmov-no}"

  6141.     echo "EBX available             ${ebx_available-no}"

  6142.     echo "EBP available             ${ebp_available-no}"

  6143. fi

  6144. if enabled aarch64; then

  6145.     echo "NEON enabled              ${neon-no}"

  6146.     echo "VFP enabled               ${vfp-no}"

  6147. fi

  6148. if enabled arm; then

  6149.     echo "ARMv5TE enabled           ${armv5te-no}"

  6150.     echo "ARMv6 enabled             ${armv6-no}"

  6151.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6152.     echo "VFP enabled               ${vfp-no}"

  6153.     echo "NEON enabled              ${neon-no}"

  6154.     echo "THUMB enabled             ${thumb-no}"

  6155. fi

  6156. if enabled mips; then

  6157.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6158.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6159.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6160.     echo "MIPS MSA enabled          ${msa-no}"

  6161.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6162. fi

  6163. if enabled ppc; then

  6164.     echo "AltiVec enabled           ${altivec-no}"

  6165.     echo "VSX enabled               ${vsx-no}"

  6166.     echo "POWER8 enabled            ${power8-no}"

  6167.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6168.     echo "dcbzl available           ${dcbzl-no}"

  6169. fi

  6170. echo "debug symbols             ${debug-no}"

  6171. echo "strip symbols             ${stripping-no}"

  6172. echo "optimize for size         ${small-no}"

  6173. echo "optimizations             ${optimizations-no}"

  6174. echo "static                    ${static-no}"

  6175. echo "shared                    ${shared-no}"

  6176. echo "postprocessing support    ${postproc-no}"

  6177. echo "new filter support        ${avfilter-no}"

  6178. echo "network support           ${network-no}"

  6179. echo "threading support         ${thread_type-no}"

  6180. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6181. echo "SDL support               ${sdl-no}"

  6182. echo "opencl enabled            ${opencl-no}"

  6183. echo "texi2html enabled         ${texi2html-no}"

  6184. echo "perl enabled              ${perl-no}"

  6185. echo "pod2man enabled           ${pod2man-no}"

  6186. echo "makeinfo enabled          ${makeinfo-no}"

  6187. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6188. test -n "$random_seed" &&

  6189.     echo "random seed               ${random_seed}"

  6190. echo

  6191. 

  6192. echo "Enabled programs:"

  6193. print_enabled '' $PROGRAM_LIST | print_in_columns

  6194. echo

  6195. 

  6196. echo "External libraries:"

  6197. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6198. echo

  6199. 

  6200. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6201.     echo "Enabled ${type}s:"

  6202.     eval list=\$$(toupper $type)_LIST

  6203.     print_enabled '_*' $list | print_in_columns

  6204.     echo

  6205. done

  6206. 

  6207. license="LGPL version 2.1 or later"

  6208. if enabled nonfree; then

  6209.     license="nonfree and unredistributable"

  6210. elif enabled gplv3; then

  6211.     license="GPL version 3 or later"

  6212. elif enabled lgplv3; then

  6213.     license="LGPL version 3 or later"

  6214. elif enabled gpl; then

  6215.     license="GPL version 2 or later"

  6216. fi

  6217. 

  6218. echo "License: $license"

  6219. 

  6220. echo "Creating config.mak, config.h, and doc/config.texi..."

  6221. 

  6222. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6223. 

  6224. enabled stripping || strip="echo skipping strip"

  6225. 

  6226. config_files="$TMPH config.mak doc/config.texi"

  6227. 

  6228. cat > config.mak <<EOF

  6229. # Automatically generated by configure - do not modify!

  6230. ifndef FFMPEG_CONFIG_MAK

  6231. FFMPEG_CONFIG_MAK=1

  6232. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6233. prefix=$prefix

  6234. LIBDIR=\$(DESTDIR)$libdir

  6235. SHLIBDIR=\$(DESTDIR)$shlibdir

  6236. INCDIR=\$(DESTDIR)$incdir

  6237. BINDIR=\$(DESTDIR)$bindir

  6238. DATADIR=\$(DESTDIR)$datadir

  6239. DOCDIR=\$(DESTDIR)$docdir

  6240. MANDIR=\$(DESTDIR)$mandir

  6241. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6242. SRC_PATH=$source_path

  6243. ifndef MAIN_MAKEFILE

  6244. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6245. endif

  6246. CC_IDENT=$cc_ident

  6247. ARCH=$arch

  6248. INTRINSICS=$intrinsics

  6249. CC=$cc

  6250. CXX=$cxx

  6251. AS=$as

  6252. OBJCC=$objcc

  6253. LD=$ld

  6254. DEPCC=$dep_cc

  6255. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6256. DEPAS=$as

  6257. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6258. YASM=$yasmexe

  6259. DEPYASM=$yasmexe

  6260. AR=$ar

  6261. ARFLAGS=$arflags

  6262. AR_O=$ar_o

  6263. RANLIB=$ranlib

  6264. STRIP=$strip

  6265. CP=cp -p

  6266. LN_S=$ln_s

  6267. CPPFLAGS=$CPPFLAGS

  6268. CFLAGS=$CFLAGS

  6269. CXXFLAGS=$CXXFLAGS

  6270. OBJCFLAGS=$OBJCFLAGS

  6271. ASFLAGS=$ASFLAGS

  6272. AS_C=$AS_C

  6273. AS_O=$AS_O

  6274. OBJCC_C=$OBJCC_C

  6275. OBJCC_E=$OBJCC_E

  6276. OBJCC_O=$OBJCC_O

  6277. CC_C=$CC_C

  6278. CC_E=$CC_E

  6279. CC_O=$CC_O

  6280. CXX_C=$CXX_C

  6281. CXX_O=$CXX_O

  6282. LD_O=$LD_O

  6283. LD_LIB=$LD_LIB

  6284. LD_PATH=$LD_PATH

  6285. DLLTOOL=$dlltool

  6286. WINDRES=$windres

  6287. DEPWINDRES=$dep_cc

  6288. DOXYGEN=$doxygen

  6289. LDFLAGS=$LDFLAGS

  6290. LDEXEFLAGS=$LDEXEFLAGS

  6291. LDLIBFLAGS=$LDLIBFLAGS

  6292. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6293. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6294. YASMFLAGS=$YASMFLAGS

  6295. BUILDSUF=$build_suffix

  6296. PROGSSUF=$progs_suffix

  6297. FULLNAME=$FULLNAME

  6298. LIBPREF=$LIBPREF

  6299. LIBSUF=$LIBSUF

  6300. LIBNAME=$LIBNAME

  6301. SLIBPREF=$SLIBPREF

  6302. SLIBSUF=$SLIBSUF

  6303. EXESUF=$EXESUF

  6304. EXTRA_VERSION=$extra_version

  6305. CCDEP=$CCDEP

  6306. CXXDEP=$CXXDEP

  6307. CCDEP_FLAGS=$CCDEP_FLAGS

  6308. ASDEP=$ASDEP

  6309. ASDEP_FLAGS=$ASDEP_FLAGS

  6310. CC_DEPFLAGS=$CC_DEPFLAGS

  6311. AS_DEPFLAGS=$AS_DEPFLAGS

  6312. HOSTCC=$host_cc

  6313. HOSTLD=$host_ld

  6314. HOSTCFLAGS=$host_cflags

  6315. HOSTCPPFLAGS=$host_cppflags

  6316. HOSTEXESUF=$HOSTEXESUF

  6317. HOSTLDFLAGS=$host_ldflags

  6318. HOSTLIBS=$host_libs

  6319. DEPHOSTCC=$host_cc

  6320. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6321. HOSTCCDEP=$HOSTCCDEP

  6322. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6323. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6324. HOSTCC_C=$HOSTCC_C

  6325. HOSTCC_O=$HOSTCC_O

  6326. HOSTLD_O=$HOSTLD_O

  6327. TARGET_EXEC=$target_exec $target_exec_args

  6328. TARGET_PATH=$target_path

  6329. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6330. CFLAGS-ffplay=$sdl_cflags

  6331. ZLIB=$($ldflags_filter -lz)

  6332. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6333. EXTRALIBS=$extralibs

  6334. COMPAT_OBJS=$compat_objs

  6335. EXEOBJS=$exeobjs

  6336. INSTALL=$install

  6337. LIBTARGET=${LIBTARGET}

  6338. SLIBNAME=${SLIBNAME}

  6339. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6340. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6341. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6342. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6343. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6344. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6345. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6346. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6347. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6348. NOREDZONE_FLAGS=$noredzone_flags

  6349. EOF

  6350. 

  6351. get_version(){

  6352.     lcname=lib${1}

  6353.     name=$(toupper $lcname)

  6354.     file=$source_path/$lcname/version.h

  6355.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6356.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6357.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6358.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6359.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6360.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6361. }

  6362. 

  6363. map 'get_version $v' $LIBRARY_LIST

  6364. 

  6365. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6366. 

  6367. print_program_libs(){

  6368.     eval "program_libs=\$${1}_libs"

  6369.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6370. }

  6371. 

  6372. map 'print_program_libs $v' $PROGRAM_LIST

  6373. 

  6374. cat > $TMPH <<EOF

  6375. /* Automatically generated by configure - do not modify! */

  6376. #ifndef FFMPEG_CONFIG_H

  6377. #define FFMPEG_CONFIG_H

  6378. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6379. #define FFMPEG_LICENSE "$(c_escape $license)"

  6380. #define CONFIG_THIS_YEAR 2016

  6381. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6382. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6383. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6384. #define av_restrict $_restrict

  6385. #define EXTERN_PREFIX "${extern_prefix}"

  6386. #define EXTERN_ASM ${extern_prefix}

  6387. #define BUILDSUF "$build_suffix"

  6388. #define SLIBSUF "$SLIBSUF"

  6389. #define HAVE_MMX2 HAVE_MMXEXT

  6390. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6391. EOF

  6392. 

  6393. test -n "$assert_level" &&

  6394.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6395. 

  6396. test -n "$malloc_prefix" &&

  6397.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6398. 

  6399. if enabled yasm; then

  6400.     append config_files $TMPASM

  6401.     printf '' >$TMPASM

  6402. fi

  6403. 

  6404. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6405. 

  6406. 

  6407. mkdir -p doc

  6408. mkdir -p tests

  6409. mkdir -p tests/api

  6410. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6411. 

  6412. print_config ARCH_   "$config_files" $ARCH_LIST

  6413. print_config HAVE_   "$config_files" $HAVE_LIST

  6414. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6415.                                      $CONFIG_EXTRA      \

  6416.                                      $ALL_COMPONENTS    \

  6417. 

  6418. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6419. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6420. 

  6421. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6422. cp_if_changed $TMPH config.h

  6423. touch .config

  6424. 

  6425. enabled yasm && cp_if_changed $TMPASM config.asm

  6426. 

  6427. cat > $TMPH <<EOF

  6428. /* Generated by ffconf */

  6429. #ifndef AVUTIL_AVCONFIG_H

  6430. #define AVUTIL_AVCONFIG_H

  6431. EOF

  6432. 

  6433. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6434. 

  6435. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6436. 

  6437. cp_if_changed $TMPH libavutil/avconfig.h

  6438. 

  6439. if test -n "$WARNINGS"; then

  6440.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6441.     enabled fatal_warnings && exit 1

  6442. fi

  6443. 

  6444. # build pkg-config files

  6445. 

  6446. lib_version(){

  6447.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6448. }

  6449. 

  6450. pkgconfig_generate(){

  6451.     name=$1

  6452.     shortname=${name#lib}${build_suffix}

  6453.     comment=$2

  6454.     version=$3

  6455.     libs=$4

  6456.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6457.     requires=${requires%, }

  6458.     enabled ${name#lib} || return 0

  6459.     mkdir -p $name

  6460.     cat <<EOF > $name/$name${build_suffix}.pc

  6461. prefix=$prefix

  6462. exec_prefix=\${prefix}

  6463. libdir=$libdir

  6464. includedir=$incdir

  6465. 

  6466. Name: $name

  6467. Description: $comment

  6468. Version: $version

  6469. Requires: $(enabled shared || echo $requires)

  6470. Requires.private: $(enabled shared && echo $requires)

  6471. Conflicts:

  6472. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6473. Libs.private: $(enabled shared && echo $libs)

  6474. Cflags: -I\${includedir}

  6475. EOF

  6476. 

  6477. mkdir -p doc/examples/pc-uninstalled

  6478. includedir=${source_path}

  6479. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6480.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6481. prefix=

  6482. exec_prefix=

  6483. libdir=\${pcfiledir}/../../../$name

  6484. includedir=${includedir}

  6485. 

  6486. Name: $name

  6487. Description: $comment

  6488. Version: $version

  6489. Requires: $requires

  6490. Conflicts:

  6491. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6492. Cflags: -I\${includedir}

  6493. EOF

  6494. }

  6495. 

  6496. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6497. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6498. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6499. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6500. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6501. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6502. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6503. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6504. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"