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FFmpeg
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FFmpeg/configure

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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --list-decoders          show all available decoders

  67.   --list-encoders          show all available encoders

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

  69.   --list-demuxers          show all available demuxers

  70.   --list-muxers            show all available muxers

  71.   --list-parsers           show all available parsers

  72.   --list-protocols         show all available protocols

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

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

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

  76.   --list-filters           show all available filters

  77. 

  78. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  92.                            not part of the dynamic linker search path

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

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

  95. 

  96. Licensing options:

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

  98.                            and binaries will be under GPL [no]

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

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

  101.                            and binaries will be unredistributable [no]

  102. 

  103. Configuration options:

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

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

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

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

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

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

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

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

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

  113. 

  114. Program options:

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

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

  119.   --disable-ffserver       disable ffserver build

  120. 

  121. Documentation options:

  122.   --disable-doc            do not build documentation

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

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

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

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

  127. 

  128. Component options:

  129.   --disable-avdevice       disable libavdevice build

  130.   --disable-avcodec        disable libavcodec build

  131.   --disable-avformat       disable libavformat build

  132.   --disable-swresample     disable libswresample build

  133.   --disable-swscale        disable libswscale build

  134.   --disable-postproc       disable libpostproc build

  135.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  141.   --disable-dct            disable DCT code

  142.   --disable-dwt            disable DWT code

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

  144.   --disable-lsp            disable LSP code

  145.   --disable-lzo            disable LZO decoder code

  146.   --disable-mdct           disable MDCT code

  147.   --disable-rdft           disable RDFT code

  148.   --disable-fft            disable FFT code

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

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

  151. 

  152. Hardware accelerators:

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

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

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

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

  157.   --disable-vdpau          disable VDPAU 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.   --disable-audiotoolbox   enable AudioToolbox decoders and encoders [autodetect]

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

  199.   --disable-bzlib          disable bzlib [autodetect]

  200.   --enable-cuda            enable dynamically linked CUDA [no]

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

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

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

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

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

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

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

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

  209.                            if openssl is not used [no]

  210.   --disable-iconv          disable iconv [autodetect]

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

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

  213.   --enable-libass          enable libass subtitles rendering,

  214.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  221.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

  232.   --enable-libmfx          enable HW acceleration through libmfx

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

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

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

  236.                            native (de)muxer exists [no]

  237.   --enable-libnpp          enable NVIDIA Performance Primitives-based code [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  262.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  285.   --enable-opencl          enable OpenCL code

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

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

  288.                            if gnutls is not used [no]

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

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

  291.   --disable-sdl            disable sdl [autodetect]

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

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

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

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

  296.   --disable-xlib           disable xlib [autodetect]

  297.   --disable-zlib           disable zlib [autodetect]

  298. 

  299. Toolchain options:

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

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

  302.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  351. 

  352. Advanced options (experts only):

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

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

  355.   --disable-symver         disable symbol versioning

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

  357.   --disable-safe-bitstream-reader

  358.                            disable buffer boundary checking in bitreaders

  359.                            (faster, but may crash)

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

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

  362. 

  363. Optimization options (experts only):

  364.   --disable-asm            disable all assembly optimizations

  365.   --disable-altivec        disable AltiVec optimizations

  366.   --disable-vsx            disable VSX optimizations

  367.   --disable-power8         disable POWER8 optimizations

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

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

  370.   --disable-mmx            disable MMX optimizations

  371.   --disable-mmxext         disable MMXEXT optimizations

  372.   --disable-sse            disable SSE optimizations

  373.   --disable-sse2           disable SSE2 optimizations

  374.   --disable-sse3           disable SSE3 optimizations

  375.   --disable-ssse3          disable SSSE3 optimizations

  376.   --disable-sse4           disable SSE4 optimizations

  377.   --disable-sse42          disable SSE4.2 optimizations

  378.   --disable-avx            disable AVX optimizations

  379.   --disable-xop            disable XOP optimizations

  380.   --disable-fma3           disable FMA3 optimizations

  381.   --disable-fma4           disable FMA4 optimizations

  382.   --disable-avx2           disable AVX2 optimizations

  383.   --disable-aesni          disable AESNI optimizations

  384.   --disable-armv5te        disable armv5te optimizations

  385.   --disable-armv6          disable armv6 optimizations

  386.   --disable-armv6t2        disable armv6t2 optimizations

  387.   --disable-vfp            disable VFP optimizations

  388.   --disable-neon           disable NEON optimizations

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

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

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

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

  393.   --disable-msa            disable MSA optimizations

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

  395.   --disable-mmi            disable Loongson SIMD optimizations

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

  397. 

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

  399.   --disable-debug          disable debugging symbols

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

  401.   --disable-optimizations  disable compiler optimizations

  402.   --enable-extra-warnings  enable more compiler warnings

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

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

  405.                            2 causes a slowdown at runtime.

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

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

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

  409.                            Cannot be combined with --target-exec

  410.   --enable-ftrapv          Trap arithmetic overflows

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

  412.                            \$FATE_SAMPLES at make invocation time.

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

  414.                            used only for debugging purposes)

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

  416.                            should be used only for debugging purposes)

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

  418.   --disable-random

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

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

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

  422.                            (group) and PROB the probability associated with

  423.                            NAME (default 0.5).

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

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

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

  427. 

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

  429. EOF

  430.   exit 0

  431. }

  432. 

  433. quotes='""'

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

  435.     ncolors=$(tput colors)

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

  437.         bold_color=$(tput bold)

  438.         warn_color=$(tput setaf 3)

  439.         error_color=$(tput setaf 1)

  440.         reset_color=$(tput sgr0)

  441.     fi

  442.     # 72 used instead of 80 since that's the default of pr

  443.     ncols=$(tput cols)

  444. fi

  445. : ${ncols:=72}

  446. 

  447. log(){

  448.     echo "$@" >> $logfile

  449. }

  450. 

  451. log_file(){

  452.     log BEGIN $1

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

  454.     log END $1

  455. }

  456. 

  457. warn(){

  458.     log "WARNING: $*"

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

  460. }

  461. 

  462. die(){

  463.     log "$@"

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

  465.     cat <<EOF

  466. 

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

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

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

  470. EOF

  471.     if disabled logging; then

  472.         cat <<EOF

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

  474. include the log this produces with your report.

  475. EOF

  476.     else

  477.         cat <<EOF

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

  479. solve the problem.

  480. EOF

  481.     fi

  482.     exit 1

  483. }

  484. 

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

  486. toupper(){

  487.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  488. }

  489. 

  490. tolower(){

  491.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  492. }

  493. 

  494. c_escape(){

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

  496. }

  497. 

  498. sh_quote(){

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

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

  501.     echo "$v"

  502. }

  503. 

  504. cleanws(){

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

  506. }

  507. 

  508. filter(){

  509.     pat=$1

  510.     shift

  511.     for v; do

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

  513.     done

  514. }

  515. 

  516. filter_out(){

  517.     pat=$1

  518.     shift

  519.     for v; do

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

  521.     done

  522. }

  523. 

  524. map(){

  525.     m=$1

  526.     shift

  527.     for v; do eval $m; done

  528. }

  529. 

  530. add_suffix(){

  531.     suffix=$1

  532.     shift

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

  534. }

  535. 

  536. set_all(){

  537.     value=$1

  538.     shift

  539.     for var in $*; do

  540.         eval $var=$value

  541.     done

  542. }

  543. 

  544. set_weak(){

  545.     value=$1

  546.     shift

  547.     for var; do

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

  549.     done

  550. }

  551. 

  552. sanitize_var_name(){

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

  554. }

  555. 

  556. set_safe(){

  557.     var=$1

  558.     shift

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

  560. }

  561. 

  562. get_safe(){

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

  564. }

  565. 

  566. pushvar(){

  567.     for pvar in $*; do

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

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

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

  571.     done

  572. }

  573. 

  574. popvar(){

  575.     for pvar in $*; do

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

  577.         test $level = 0 && continue

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

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

  580.         eval ${pvar}_level=$level

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

  582.     done

  583. }

  584. 

  585. enable(){

  586.     set_all yes $*

  587. }

  588. 

  589. disable(){

  590.     set_all no $*

  591. }

  592. 

  593. enable_weak(){

  594.     set_weak yes $*

  595. }

  596. 

  597. disable_weak(){

  598.     set_weak no $*

  599. }

  600. 

  601. enable_safe(){

  602.     for var; do

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

  604.     done

  605. }

  606. 

  607. disable_safe(){

  608.     for var; do

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

  610.     done

  611. }

  612. 

  613. do_enable_deep(){

  614.     for var; do

  615.         enabled $var && continue

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

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

  618.         pushvar var sgs

  619.         enable_deep $sel

  620.         popvar sgs

  621.         enable_deep_weak $sgs

  622.         popvar var

  623.     done

  624. }

  625. 

  626. enable_deep(){

  627.     do_enable_deep $*

  628.     enable $*

  629. }

  630. 

  631. enable_deep_weak(){

  632.     for var; do

  633.         disabled $var && continue

  634.         pushvar var

  635.         do_enable_deep $var

  636.         popvar var

  637.         enable_weak $var

  638.     done

  639. }

  640. 

  641. enabled(){

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

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

  644. }

  645. 

  646. disabled(){

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

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

  649. }

  650. 

  651. enabled_all(){

  652.     for opt; do

  653.         enabled $opt || return 1

  654.     done

  655. }

  656. 

  657. disabled_all(){

  658.     for opt; do

  659.         disabled $opt || return 1

  660.     done

  661. }

  662. 

  663. enabled_any(){

  664.     for opt; do

  665.         enabled $opt && return 0

  666.     done

  667. }

  668. 

  669. disabled_any(){

  670.     for opt; do

  671.         disabled $opt && return 0

  672.     done

  673.     return 1

  674. }

  675. 

  676. set_default(){

  677.     for opt; do

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

  679.     done

  680. }

  681. 

  682. is_in(){

  683.     value=$1

  684.     shift

  685.     for var in $*; do

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

  687.     done

  688.     return 1

  689. }

  690. 

  691. do_check_deps(){

  692.     for cfg; do

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

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

  695.         disabled ${cfg}_checking && continue

  696.         enable ${cfg}_checking

  697.         append allopts $cfg

  698. 

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

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

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

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

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

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

  705. 

  706.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  708.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  709. 

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

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

  712.         enabled_all  $dep_all || disable $cfg

  713.         enabled_any  $dep_any || disable $cfg

  714.         disabled_any $dep_sel && disable $cfg

  715. 

  716.         if enabled $cfg; then

  717.             enable_deep $dep_sel

  718.             enable_deep_weak $dep_sgs

  719.         fi

  720. 

  721.         disable ${cfg}_checking

  722.     done

  723. }

  724. 

  725. check_deps(){

  726.     unset allopts

  727. 

  728.     do_check_deps "$@"

  729. 

  730.     for cfg in $allopts; do

  731.         enabled $cfg || continue

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

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

  734.     done

  735. }

  736. 

  737. print_config(){

  738.     pfx=$1

  739.     files=$2

  740.     shift 2

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

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

  743.         {

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

  745.             v = \$2;

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

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

  748.             for (f in files) {

  749.                 file = files[f];

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

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

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

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

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

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

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

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

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

  759.                     yesno = \$2;

  760.                     c2 = tolower(c);

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

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

  763.                 }

  764.             }

  765.         }"

  766. }

  767. 

  768. print_enabled(){

  769.     suf=$1

  770.     shift

  771.     for v; do

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

  773.     done

  774. }

  775. 

  776. append(){

  777.     var=$1

  778.     shift

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

  780. }

  781. 

  782. prepend(){

  783.     var=$1

  784.     shift

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

  786. }

  787. 

  788. unique(){

  789.     var=$1

  790.     uniq_list=""

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

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

  793.     done

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

  795. }

  796. 

  797. add_cppflags(){

  798.     append CPPFLAGS "$@"

  799. }

  800. 

  801. add_cflags(){

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

  803. }

  804. 

  805. add_cxxflags(){

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

  807. }

  808. 

  809. add_asflags(){

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

  811. }

  812. 

  813. add_objcflags(){

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

  815. }

  816. 

  817. add_ldflags(){

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

  819. }

  820. 

  821. add_ldexeflags(){

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

  823. }

  824. 

  825. add_ldlibflags(){

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

  827. }

  828. 

  829. add_stripflags(){

  830.     append ASMSTRIPFLAGS "$@"

  831. }

  832. 

  833. add_extralibs(){

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

  835. }

  836. 

  837. add_host_cppflags(){

  838.     append host_cppflags "$@"

  839. }

  840. 

  841. add_host_cflags(){

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

  843. }

  844. 

  845. add_host_ldflags(){

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

  847. }

  848. 

  849. add_compat(){

  850.     append compat_objs $1

  851.     shift

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

  853. }

  854. 

  855. check_cmd(){

  856.     log "$@"

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

  858. }

  859. 

  860. check_stat(){

  861.     log check_stat "$@"

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

  863. }

  864. 

  865. cc_o(){

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

  867. }

  868. 

  869. cc_e(){

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

  871. }

  872. 

  873. check_cc(){

  874.     log check_cc "$@"

  875.     cat > $TMPC

  876.     log_file $TMPC

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

  878. }

  879. 

  880. check_cxx(){

  881.     log check_cxx "$@"

  882.     cat > $TMPCPP

  883.     log_file $TMPCPP

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

  885. }

  886. 

  887. check_objcc(){

  888.     log check_objcc "$@"

  889.     cat > $TMPM

  890.     log_file $TMPM

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

  892. }

  893. 

  894. check_cpp(){

  895.     log check_cpp "$@"

  896.     cat > $TMPC

  897.     log_file $TMPC

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

  899. }

  900. 

  901. as_o(){

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

  903. }

  904. 

  905. check_as(){

  906.     log check_as "$@"

  907.     cat > $TMPS

  908.     log_file $TMPS

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

  910. }

  911. 

  912. check_inline_asm(){

  913.     log check_inline_asm "$@"

  914.     name="$1"

  915.     code="$2"

  916.     shift 2

  917.     disable $name

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

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

  920. EOF

  921. }

  922. 

  923. check_inline_asm_flags(){

  924.     log check_inline_asm_flags "$@"

  925.     name="$1"

  926.     code="$2"

  927.     flags=''

  928.     shift 2

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

  930.       append flags $1

  931.       shift

  932.     done;

  933.     disable $name

  934.     cat > $TMPC <<EOF

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

  936. EOF

  937.     log_file $TMPC

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

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

  940. }

  941. 

  942. check_insn(){

  943.     log check_insn "$@"

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

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

  946. }

  947. 

  948. check_yasm(){

  949.     log check_yasm "$@"

  950.     echo "$1" > $TMPS

  951.     log_file $TMPS

  952.     shift 1

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

  954. }

  955. 

  956. ld_o(){

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

  958. }

  959. 

  960. check_ld(){

  961.     log check_ld "$@"

  962.     type=$1

  963.     shift 1

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

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

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

  967.     flags=$($ldflags_filter $flags)

  968.     libs=$($ldflags_filter $libs)

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

  970. }

  971. 

  972. print_include(){

  973.     hdr=$1

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

  975.         echo "#include $hdr"    ||

  976.         echo "#include <$hdr>"

  977. }

  978. 

  979. check_code(){

  980.     log check_code "$@"

  981.     check=$1

  982.     headers=$2

  983.     code=$3

  984.     shift 3

  985.     {

  986.         for hdr in $headers; do

  987.             print_include $hdr

  988.         done

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

  990.     } | check_$check "$@"

  991. }

  992. 

  993. check_cppflags(){

  994.     log check_cppflags "$@"

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

  996. int x;

  997. EOF

  998. }

  999. 

  1000. test_cflags(){

  1001.     log test_cflags "$@"

  1002.     set -- $($cflags_filter "$@")

  1003.     check_cc "$@" <<EOF

  1004. int x;

  1005. EOF

  1006. }

  1007. 

  1008. check_cflags(){

  1009.     log check_cflags "$@"

  1010.     test_cflags "$@" && add_cflags "$@"

  1011. }

  1012. 

  1013. check_cxxflags(){

  1014.     log check_cxxflags "$@"

  1015.     set -- $($cflags_filter "$@")

  1016.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1017. int x;

  1018. EOF

  1019. }

  1020. 

  1021. test_objcflags(){

  1022.     log test_cflags "$@"

  1023.     set -- $($cflags_filter "$@")

  1024.     check_objcc "$@" <<EOF

  1025. int x;

  1026. EOF

  1027. }

  1028. 

  1029. check_objcflags(){

  1030.     log check_cflags "$@"

  1031.     test_objcflags "$@" && add_objcflags "$@"

  1032. }

  1033. 

  1034. test_ldflags(){

  1035.     log test_ldflags "$@"

  1036.     check_ld "cc" "$@" <<EOF

  1037. int main(void){ return 0; }

  1038. EOF

  1039. }

  1040. 

  1041. check_ldflags(){

  1042.     log check_ldflags "$@"

  1043.     test_ldflags "$@" && add_ldflags "$@"

  1044. }

  1045. 

  1046. test_stripflags(){

  1047.     log test_stripflags "$@"

  1048.     # call check_cc to get a fresh TMPO

  1049.     check_cc <<EOF

  1050. int main(void) { return 0; }

  1051. EOF

  1052.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1053. }

  1054. 

  1055. check_stripflags(){

  1056.     log check_stripflags "$@"

  1057.     test_stripflags "$@" && add_stripflags "$@"

  1058. }

  1059. 

  1060. check_header(){

  1061.     log check_header "$@"

  1062.     header=$1

  1063.     shift

  1064.     disable_safe $header

  1065.     check_cpp "$@" <<EOF && enable_safe $header

  1066. #include <$header>

  1067. int x;

  1068. EOF

  1069. }

  1070. 

  1071. check_header_objcc(){

  1072.     log check_header_objcc "$@"

  1073.     rm -f -- "$TMPO"

  1074.     header=$1

  1075.     shift

  1076.     disable_safe $header

  1077.     {

  1078.        echo "#include <$header>"

  1079.        echo "int main(void) { return 0; }"

  1080.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1081. }

  1082. 

  1083. check_func(){

  1084.     log check_func "$@"

  1085.     func=$1

  1086.     shift

  1087.     disable $func

  1088.     check_ld "cc" "$@" <<EOF && enable $func

  1089. extern int $func();

  1090. int main(void){ $func(); }

  1091. EOF

  1092. }

  1093. 

  1094. check_complexfunc(){

  1095.     log check_complexfunc "$@"

  1096.     func=$1

  1097.     narg=$2

  1098.     shift 2

  1099.     test $narg = 2 && args="f, g" || args="f * I"

  1100.     disable $func

  1101.     check_ld "cc" "$@" <<EOF && enable $func

  1102. #include <complex.h>

  1103. #include <math.h>

  1104. float foo(complex float f, complex float g) { return $func($args); }

  1105. int main(void){ return (int) foo; }

  1106. EOF

  1107. }

  1108. 

  1109. check_mathfunc(){

  1110.     log check_mathfunc "$@"

  1111.     func=$1

  1112.     narg=$2

  1113.     shift 2

  1114.     test $narg = 2 && args="f, g" || args="f"

  1115.     disable $func

  1116.     check_ld "cc" "$@" <<EOF && enable $func

  1117. #include <math.h>

  1118. float foo(float f, float g) { return $func($args); }

  1119. int main(void){ return (int) foo; }

  1120. EOF

  1121. }

  1122. 

  1123. check_func_headers(){

  1124.     log check_func_headers "$@"

  1125.     headers=$1

  1126.     funcs=$2

  1127.     shift 2

  1128.     {

  1129.         for hdr in $headers; do

  1130.             print_include $hdr

  1131.         done

  1132.         for func in $funcs; do

  1133.             echo "long check_$func(void) { return (long) $func; }"

  1134.         done

  1135.         echo "int main(void) { return 0; }"

  1136.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1137. }

  1138. 

  1139. check_class_headers_cpp(){

  1140.     log check_class_headers_cpp "$@"

  1141.     headers=$1

  1142.     classes=$2

  1143.     shift 2

  1144.     {

  1145.         for hdr in $headers; do

  1146.             echo "#include <$hdr>"

  1147.         done

  1148.         echo "int main(void) { "

  1149.         i=1

  1150.         for class in $classes; do

  1151.             echo "$class obj$i;"

  1152.             i=$(expr $i + 1)

  1153.         done

  1154.         echo "return 0; }"

  1155.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1156. }

  1157. 

  1158. check_cpp_condition(){

  1159.     log check_cpp_condition "$@"

  1160.     header=$1

  1161.     condition=$2

  1162.     shift 2

  1163.     check_cpp "$@" <<EOF

  1164. #include <$header>

  1165. #if !($condition)

  1166. #error "unsatisfied condition: $condition"

  1167. #endif

  1168. EOF

  1169. }

  1170. 

  1171. check_lib(){

  1172.     log check_lib "$@"

  1173.     header="$1"

  1174.     func="$2"

  1175.     shift 2

  1176.     check_header $header && check_func $func "$@" && add_extralibs "$@"

  1177. }

  1178. 

  1179. check_lib2(){

  1180.     log check_lib2 "$@"

  1181.     headers="$1"

  1182.     funcs="$2"

  1183.     shift 2

  1184.     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"

  1185. }

  1186. 

  1187. check_lib_cpp(){

  1188.     log check_lib_cpp "$@"

  1189.     headers="$1"

  1190.     classes="$2"

  1191.     shift 2

  1192.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1193. }

  1194. 

  1195. check_pkg_config(){

  1196.     log check_pkg_config "$@"

  1197.     pkgandversion="$1"

  1198.     pkg="${1%% *}"

  1199.     headers="$2"

  1200.     funcs="$3"

  1201.     shift 3

  1202.     check_cmd $pkg_config --exists --print-errors $pkgandversion || return

  1203.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1204.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1205.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1206.         set_safe "${pkg}_cflags" $pkg_cflags   &&

  1207.         set_safe "${pkg}_libs"   $pkg_libs

  1208. }

  1209. 

  1210. check_exec(){

  1211.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1212. }

  1213. 

  1214. check_exec_crash(){

  1215.     code=$(cat)

  1216. 

  1217.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1218.     # are safe but may not be available everywhere.  Thus we use

  1219.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1220.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1221.     # is not defined by standard C so it is used conditionally.

  1222. 

  1223.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1224. #include <signal.h>

  1225. static void sighandler(int sig){

  1226.     raise(SIGTERM);

  1227. }

  1228. int foo(void){

  1229.     $code

  1230. }

  1231. int (*func_ptr)(void) = foo;

  1232. int main(void){

  1233.     signal(SIGILL, sighandler);

  1234.     signal(SIGFPE, sighandler);

  1235.     signal(SIGSEGV, sighandler);

  1236. #ifdef SIGBUS

  1237.     signal(SIGBUS, sighandler);

  1238. #endif

  1239.     return func_ptr();

  1240. }

  1241. EOF

  1242. }

  1243. 

  1244. check_type(){

  1245.     log check_type "$@"

  1246.     headers=$1

  1247.     type=$2

  1248.     shift 2

  1249.     disable_safe "$type"

  1250.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1251. }

  1252. 

  1253. check_struct(){

  1254.     log check_struct "$@"

  1255.     headers=$1

  1256.     struct=$2

  1257.     member=$3

  1258.     shift 3

  1259.     disable_safe "${struct}_${member}"

  1260.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1261.         enable_safe "${struct}_${member}"

  1262. }

  1263. 

  1264. check_builtin(){

  1265.     log check_builtin "$@"

  1266.     name=$1

  1267.     headers=$2

  1268.     builtin=$3

  1269.     shift 3

  1270.     disable "$name"

  1271.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1272. }

  1273. 

  1274. check_compile_assert(){

  1275.     log check_compile_assert "$@"

  1276.     name=$1

  1277.     headers=$2

  1278.     condition=$3

  1279.     shift 3

  1280.     disable "$name"

  1281.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1282. }

  1283. 

  1284. require(){

  1285.     name="$1"

  1286.     header="$2"

  1287.     func="$3"

  1288.     shift 3

  1289.     check_lib $header $func "$@" || die "ERROR: $name not found"

  1290. }

  1291. 

  1292. require2(){

  1293.     name="$1"

  1294.     headers="$2"

  1295.     func="$3"

  1296.     shift 3

  1297.     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"

  1298. }

  1299. 

  1300. require_cpp(){

  1301.     name="$1"

  1302.     headers="$2"

  1303.     classes="$3"

  1304.     shift 3

  1305.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1306. }

  1307. 

  1308. use_pkg_config(){

  1309.     pkg="$1"

  1310.     check_pkg_config "$@" || return 1

  1311.     add_cflags    $(get_safe "${pkg}_cflags")

  1312.     add_extralibs $(get_safe "${pkg}_libs")

  1313. }

  1314. 

  1315. require_pkg_config(){

  1316.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1317. }

  1318. 

  1319. require_libfreetype(){

  1320.     log require_libfreetype "$@"

  1321.     pkg="freetype2"

  1322.     check_cmd $pkg_config --exists --print-errors $pkg \

  1323.       || die "ERROR: $pkg not found"

  1324.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1325.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1326.     {

  1327.         echo "#include <ft2build.h>"

  1328.         echo "#include FT_FREETYPE_H"

  1329.         echo "long check_func(void) { return (long) FT_Init_FreeType; }"

  1330.         echo "int main(void) { return 0; }"

  1331.     } | check_ld "cc" $pkg_cflags $pkg_libs \

  1332.       && set_safe "${pkg}_cflags" $pkg_cflags \

  1333.       && set_safe "${pkg}_libs"   $pkg_libs \

  1334.       || die "ERROR: $pkg not found"

  1335.     add_cflags    $(get_safe "${pkg}_cflags")

  1336.     add_extralibs $(get_safe "${pkg}_libs")

  1337. }

  1338. 

  1339. hostcc_e(){

  1340.     eval printf '%s\\n' $HOSTCC_E

  1341. }

  1342. 

  1343. hostcc_o(){

  1344.     eval printf '%s\\n' $HOSTCC_O

  1345. }

  1346. 

  1347. check_host_cc(){

  1348.     log check_host_cc "$@"

  1349.     cat > $TMPC

  1350.     log_file $TMPC

  1351.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1352. }

  1353. 

  1354. check_host_cpp(){

  1355.     log check_host_cpp "$@"

  1356.     cat > $TMPC

  1357.     log_file $TMPC

  1358.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1359. }

  1360. 

  1361. check_host_cppflags(){

  1362.     log check_host_cppflags "$@"

  1363.     check_host_cc "$@" <<EOF && append host_cppflags "$@"

  1364. int x;

  1365. EOF

  1366. }

  1367. 

  1368. check_host_cflags(){

  1369.     log check_host_cflags "$@"

  1370.     set -- $($host_cflags_filter "$@")

  1371.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1372. int x;

  1373. EOF

  1374. }

  1375. 

  1376. check_host_cpp_condition(){

  1377.     log check_host_cpp_condition "$@"

  1378.     header=$1

  1379.     condition=$2

  1380.     shift 2

  1381.     check_host_cpp "$@" <<EOF

  1382. #include <$header>

  1383. #if !($condition)

  1384. #error "unsatisfied condition: $condition"

  1385. #endif

  1386. EOF

  1387. }

  1388. 

  1389. cp_if_changed(){

  1390.     cmp -s "$1" "$2" && echo "$2 is unchanged" && return

  1391.     mkdir -p "$(dirname $2)"

  1392.     $cp_f "$1" "$2"

  1393. }

  1394. 

  1395. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1396. # system-dependent things.

  1397. 

  1398. AVCODEC_COMPONENTS="

  1399.     bsfs

  1400.     decoders

  1401.     encoders

  1402.     hwaccels

  1403.     parsers

  1404. "

  1405. 

  1406. AVDEVICE_COMPONENTS="

  1407.     indevs

  1408.     outdevs

  1409. "

  1410. AVFILTER_COMPONENTS="

  1411.     filters

  1412. "

  1413. AVFORMAT_COMPONENTS="

  1414.     demuxers

  1415.     muxers

  1416.     protocols

  1417. "

  1418. 

  1419. AVRESAMPLE_COMPONENTS=""

  1420. AVUTIL_COMPONENTS=""

  1421. 

  1422. COMPONENT_LIST="

  1423.     $AVCODEC_COMPONENTS

  1424.     $AVDEVICE_COMPONENTS

  1425.     $AVFILTER_COMPONENTS

  1426.     $AVFORMAT_COMPONENTS

  1427.     $AVRESAMPLE_COMPONENTS

  1428.     $AVUTIL_COMPONENTS

  1429. "

  1430. 

  1431. EXAMPLE_LIST="

  1432.     avio_reading_example

  1433.     avio_dir_cmd_example

  1434.     decoding_encoding_example

  1435.     demuxing_decoding_example

  1436.     extract_mvs_example

  1437.     filter_audio_example

  1438.     filtering_audio_example

  1439.     filtering_video_example

  1440.     metadata_example

  1441.     muxing_example

  1442.     qsvdec_example

  1443.     remuxing_example

  1444.     resampling_audio_example

  1445.     scaling_video_example

  1446.     transcode_aac_example

  1447.     transcoding_example

  1448. "

  1449. 

  1450. EXTERNAL_LIBRARY_LIST="

  1451.     audiotoolbox

  1452.     avisynth

  1453.     bzlib

  1454.     chromaprint

  1455.     crystalhd

  1456.     cuda

  1457.     decklink

  1458.     frei0r

  1459.     gcrypt

  1460.     gmp

  1461.     gnutls

  1462.     iconv

  1463.     jni

  1464.     ladspa

  1465.     libass

  1466.     libbluray

  1467.     libbs2b

  1468.     libcaca

  1469.     libcdio

  1470.     libcelt

  1471.     libdc1394

  1472.     libfaac

  1473.     libfdk_aac

  1474.     libflite

  1475.     libfontconfig

  1476.     libfreetype

  1477.     libfribidi

  1478.     libgme

  1479.     libgsm

  1480.     libiec61883

  1481.     libilbc

  1482.     libkvazaar

  1483.     libmfx

  1484.     libmodplug

  1485.     libmp3lame

  1486.     libnut

  1487.     libnpp

  1488.     libopencore_amrnb

  1489.     libopencore_amrwb

  1490.     libopencv

  1491.     libopenh264

  1492.     libopenjpeg

  1493.     libopus

  1494.     libpulse

  1495.     librtmp

  1496.     librubberband

  1497.     libschroedinger

  1498.     libshine

  1499.     libsmbclient

  1500.     libsnappy

  1501.     libsoxr

  1502.     libspeex

  1503.     libssh

  1504.     libtesseract

  1505.     libtheora

  1506.     libtwolame

  1507.     libutvideo

  1508.     libv4l2

  1509.     libvidstab

  1510.     libvo_amrwbenc

  1511.     libvorbis

  1512.     libvpx

  1513.     libwavpack

  1514.     libwebp

  1515.     libx264

  1516.     libx265

  1517.     libxavs

  1518.     libxcb

  1519.     libxcb_shm

  1520.     libxcb_shape

  1521.     libxcb_xfixes

  1522.     libxvid

  1523.     libzimg

  1524.     libzmq

  1525.     libzvbi

  1526.     lzma

  1527.     mediacodec

  1528.     mmal

  1529.     netcdf

  1530.     nvenc

  1531.     openal

  1532.     opencl

  1533.     opengl

  1534.     openssl

  1535.     schannel

  1536.     sdl

  1537.     securetransport

  1538.     videotoolbox

  1539.     x11grab

  1540.     xlib

  1541.     zlib

  1542. "

  1543. 

  1544. DOCUMENT_LIST="

  1545.     doc

  1546.     htmlpages

  1547.     manpages

  1548.     podpages

  1549.     txtpages

  1550. "

  1551. 

  1552. FEATURE_LIST="

  1553.     ftrapv

  1554.     gray

  1555.     hardcoded_tables

  1556.     runtime_cpudetect

  1557.     safe_bitstream_reader

  1558.     shared

  1559.     small

  1560.     static

  1561.     swscale_alpha

  1562. "

  1563. 

  1564. HWACCEL_LIST="

  1565.     d3d11va

  1566.     dxva2

  1567.     vaapi

  1568.     vda

  1569.     vdpau

  1570.     videotoolbox_hwaccel

  1571.     xvmc

  1572. "

  1573. 

  1574. LIBRARY_LIST="

  1575.     avcodec

  1576.     avdevice

  1577.     avfilter

  1578.     avformat

  1579.     avresample

  1580.     avutil

  1581.     postproc

  1582.     swresample

  1583.     swscale

  1584. "

  1585. 

  1586. LICENSE_LIST="

  1587.     gpl

  1588.     nonfree

  1589.     version3

  1590. "

  1591. 

  1592. PROGRAM_LIST="

  1593.     ffplay

  1594.     ffprobe

  1595.     ffserver

  1596.     ffmpeg

  1597. "

  1598. 

  1599. SUBSYSTEM_LIST="

  1600.     dct

  1601.     dwt

  1602.     error_resilience

  1603.     faan

  1604.     fast_unaligned

  1605.     fft

  1606.     lsp

  1607.     lzo

  1608.     mdct

  1609.     pixelutils

  1610.     network

  1611.     rdft

  1612. "

  1613. 

  1614. CONFIG_LIST="

  1615.     $COMPONENT_LIST

  1616.     $DOCUMENT_LIST

  1617.     $EXAMPLE_LIST

  1618.     $EXTERNAL_LIBRARY_LIST

  1619.     $FEATURE_LIST

  1620.     $HWACCEL_LIST

  1621.     $LICENSE_LIST

  1622.     $LIBRARY_LIST

  1623.     $PROGRAM_LIST

  1624.     $SUBSYSTEM_LIST

  1625.     fontconfig

  1626.     incompatible_libav_abi

  1627.     memalign_hack

  1628.     memory_poisoning

  1629.     neon_clobber_test

  1630.     pic

  1631.     pod2man

  1632.     raise_major

  1633.     thumb

  1634.     valgrind_backtrace

  1635.     xmm_clobber_test

  1636. "

  1637. 

  1638. THREADS_LIST="

  1639.     pthreads

  1640.     os2threads

  1641.     w32threads

  1642. "

  1643. 

  1644. ATOMICS_LIST="

  1645.     atomics_gcc

  1646.     atomics_suncc

  1647.     atomics_win32

  1648. "

  1649. 

  1650. ARCH_LIST="

  1651.     aarch64

  1652.     alpha

  1653.     arm

  1654.     avr32

  1655.     avr32_ap

  1656.     avr32_uc

  1657.     bfin

  1658.     ia64

  1659.     m68k

  1660.     mips

  1661.     mips64

  1662.     parisc

  1663.     ppc

  1664.     ppc64

  1665.     s390

  1666.     sh4

  1667.     sparc

  1668.     sparc64

  1669.     tilegx

  1670.     tilepro

  1671.     tomi

  1672.     x86

  1673.     x86_32

  1674.     x86_64

  1675. "

  1676. 

  1677. ARCH_EXT_LIST_ARM="

  1678.     armv5te

  1679.     armv6

  1680.     armv6t2

  1681.     armv8

  1682.     neon

  1683.     vfp

  1684.     vfpv3

  1685.     setend

  1686. "

  1687. 

  1688. ARCH_EXT_LIST_MIPS="

  1689.     mipsfpu

  1690.     mips32r2

  1691.     mips32r5

  1692.     mips64r2

  1693.     mips32r6

  1694.     mips64r6

  1695.     mipsdsp

  1696.     mipsdspr2

  1697.     msa

  1698. "

  1699. 

  1700. ARCH_EXT_LIST_LOONGSON="

  1701.     loongson2

  1702.     loongson3

  1703.     mmi

  1704. "

  1705. 

  1706. ARCH_EXT_LIST_X86_SIMD="

  1707.     aesni

  1708.     amd3dnow

  1709.     amd3dnowext

  1710.     avx

  1711.     avx2

  1712.     fma3

  1713.     fma4

  1714.     mmx

  1715.     mmxext

  1716.     sse

  1717.     sse2

  1718.     sse3

  1719.     sse4

  1720.     sse42

  1721.     ssse3

  1722.     xop

  1723. "

  1724. 

  1725. ARCH_EXT_LIST_PPC="

  1726.     altivec

  1727.     dcbzl

  1728.     ldbrx

  1729.     power8

  1730.     ppc4xx

  1731.     vsx

  1732. "

  1733. 

  1734. ARCH_EXT_LIST_X86="

  1735.     $ARCH_EXT_LIST_X86_SIMD

  1736.     cpunop

  1737.     i686

  1738. "

  1739. 

  1740. ARCH_EXT_LIST="

  1741.     $ARCH_EXT_LIST_ARM

  1742.     $ARCH_EXT_LIST_PPC

  1743.     $ARCH_EXT_LIST_X86

  1744.     $ARCH_EXT_LIST_MIPS

  1745.     $ARCH_EXT_LIST_LOONGSON

  1746. "

  1747. 

  1748. ARCH_FEATURES="

  1749.     aligned_stack

  1750.     fast_64bit

  1751.     fast_clz

  1752.     fast_cmov

  1753.     local_aligned_8

  1754.     local_aligned_16

  1755.     local_aligned_32

  1756.     simd_align_16

  1757. "

  1758. 

  1759. BUILTIN_LIST="

  1760.     atomic_cas_ptr

  1761.     atomic_compare_exchange

  1762.     machine_rw_barrier

  1763.     MemoryBarrier

  1764.     mm_empty

  1765.     rdtsc

  1766.     sarestart

  1767.     sem_timedwait

  1768.     sync_val_compare_and_swap

  1769. "

  1770. HAVE_LIST_CMDLINE="

  1771.     inline_asm

  1772.     symver

  1773.     yasm

  1774. "

  1775. 

  1776. HAVE_LIST_PUB="

  1777.     bigendian

  1778.     fast_unaligned

  1779.     incompatible_libav_abi

  1780. "

  1781. 

  1782. HEADERS_LIST="

  1783.     alsa_asoundlib_h

  1784.     altivec_h

  1785.     arpa_inet_h

  1786.     asm_types_h

  1787.     cdio_paranoia_h

  1788.     cdio_paranoia_paranoia_h

  1789.     dispatch_dispatch_h

  1790.     dev_bktr_ioctl_bt848_h

  1791.     dev_bktr_ioctl_meteor_h

  1792.     dev_ic_bt8xx_h

  1793.     dev_video_bktr_ioctl_bt848_h

  1794.     dev_video_meteor_ioctl_meteor_h

  1795.     direct_h

  1796.     dirent_h

  1797.     dlfcn_h

  1798.     d3d11_h

  1799.     dxva_h

  1800.     ES2_gl_h

  1801.     gsm_h

  1802.     io_h

  1803.     mach_mach_time_h

  1804.     machine_ioctl_bt848_h

  1805.     machine_ioctl_meteor_h

  1806.     malloc_h

  1807.     opencv2_core_core_c_h

  1808.     openjpeg_2_1_openjpeg_h

  1809.     openjpeg_2_0_openjpeg_h

  1810.     openjpeg_1_5_openjpeg_h

  1811.     OpenGL_gl3_h

  1812.     poll_h

  1813.     sndio_h

  1814.     soundcard_h

  1815.     sys_mman_h

  1816.     sys_param_h

  1817.     sys_resource_h

  1818.     sys_select_h

  1819.     sys_soundcard_h

  1820.     sys_time_h

  1821.     sys_un_h

  1822.     sys_videoio_h

  1823.     termios_h

  1824.     udplite_h

  1825.     unistd_h

  1826.     valgrind_valgrind_h

  1827.     windows_h

  1828.     winsock2_h

  1829. "

  1830. 

  1831. INTRINSICS_LIST="

  1832.     intrinsics_neon

  1833. "

  1834. 

  1835. COMPLEX_FUNCS="

  1836.     cabs

  1837.     cexp

  1838. "

  1839. 

  1840. MATH_FUNCS="

  1841.     atanf

  1842.     atan2f

  1843.     cbrt

  1844.     cbrtf

  1845.     copysign

  1846.     cosf

  1847.     erf

  1848.     exp2

  1849.     exp2f

  1850.     expf

  1851.     hypot

  1852.     isfinite

  1853.     isinf

  1854.     isnan

  1855.     ldexpf

  1856.     llrint

  1857.     llrintf

  1858.     log2

  1859.     log2f

  1860.     log10f

  1861.     lrint

  1862.     lrintf

  1863.     powf

  1864.     rint

  1865.     round

  1866.     roundf

  1867.     sinf

  1868.     trunc

  1869.     truncf

  1870. "

  1871. 

  1872. SYSTEM_FUNCS="

  1873.     access

  1874.     aligned_malloc

  1875.     arc4random

  1876.     clock_gettime

  1877.     closesocket

  1878.     CommandLineToArgvW

  1879.     CoTaskMemFree

  1880.     CryptGenRandom

  1881.     dlopen

  1882.     fcntl

  1883.     flt_lim

  1884.     fork

  1885.     getaddrinfo

  1886.     gethrtime

  1887.     getopt

  1888.     GetProcessAffinityMask

  1889.     GetProcessMemoryInfo

  1890.     GetProcessTimes

  1891.     getrusage

  1892.     GetSystemTimeAsFileTime

  1893.     gettimeofday

  1894.     glob

  1895.     glXGetProcAddress

  1896.     gmtime_r

  1897.     inet_aton

  1898.     isatty

  1899.     jack_port_get_latency_range

  1900.     kbhit

  1901.     localtime_r

  1902.     lstat

  1903.     lzo1x_999_compress

  1904.     mach_absolute_time

  1905.     MapViewOfFile

  1906.     memalign

  1907.     mkstemp

  1908.     mmap

  1909.     mprotect

  1910.     nanosleep

  1911.     PeekNamedPipe

  1912.     posix_memalign

  1913.     pthread_cancel

  1914.     sched_getaffinity

  1915.     SetConsoleTextAttribute

  1916.     SetConsoleCtrlHandler

  1917.     setmode

  1918.     setrlimit

  1919.     Sleep

  1920.     strerror_r

  1921.     sysconf

  1922.     sysctl

  1923.     usleep

  1924.     UTGetOSTypeFromString

  1925.     VirtualAlloc

  1926.     wglGetProcAddress

  1927. "

  1928. 

  1929. TOOLCHAIN_FEATURES="

  1930.     as_dn_directive

  1931.     as_func

  1932.     as_object_arch

  1933.     asm_mod_q

  1934.     attribute_may_alias

  1935.     attribute_packed

  1936.     ebp_available

  1937.     ebx_available

  1938.     gnu_as

  1939.     gnu_windres

  1940.     ibm_asm

  1941.     inline_asm_direct_symbol_refs

  1942.     inline_asm_labels

  1943.     inline_asm_nonlocal_labels

  1944.     pragma_deprecated

  1945.     rsync_contimeout

  1946.     symver_asm_label

  1947.     symver_gnu_asm

  1948.     vfp_args

  1949.     xform_asm

  1950.     xmm_clobbers

  1951. "

  1952. 

  1953. TYPES_LIST="

  1954.     CONDITION_VARIABLE_Ptr

  1955.     socklen_t

  1956.     struct_addrinfo

  1957.     struct_group_source_req

  1958.     struct_ip_mreq_source

  1959.     struct_ipv6_mreq

  1960.     struct_msghdr_msg_flags

  1961.     struct_pollfd

  1962.     struct_rusage_ru_maxrss

  1963.     struct_sctp_event_subscribe

  1964.     struct_sockaddr_in6

  1965.     struct_sockaddr_sa_len

  1966.     struct_sockaddr_storage

  1967.     struct_stat_st_mtim_tv_nsec

  1968.     struct_v4l2_frmivalenum_discrete

  1969. "

  1970. 

  1971. HAVE_LIST="

  1972.     $ARCH_EXT_LIST

  1973.     $(add_suffix _external $ARCH_EXT_LIST)

  1974.     $(add_suffix _inline   $ARCH_EXT_LIST)

  1975.     $ARCH_FEATURES

  1976.     $ATOMICS_LIST

  1977.     $BUILTIN_LIST

  1978.     $COMPLEX_FUNCS

  1979.     $HAVE_LIST_CMDLINE

  1980.     $HAVE_LIST_PUB

  1981.     $HEADERS_LIST

  1982.     $INTRINSICS_LIST

  1983.     $MATH_FUNCS

  1984.     $SYSTEM_FUNCS

  1985.     $THREADS_LIST

  1986.     $TOOLCHAIN_FEATURES

  1987.     $TYPES_LIST

  1988.     atomics_native

  1989.     dos_paths

  1990.     dxva2_lib

  1991.     dxva2api_cobj

  1992.     libc_msvcrt

  1993.     libdc1394_1

  1994.     libdc1394_2

  1995.     makeinfo

  1996.     makeinfo_html

  1997.     perl

  1998.     pod2man

  1999.     sdl

  2000.     section_data_rel_ro

  2001.     texi2html

  2002.     threads

  2003.     vaapi_drm

  2004.     vaapi_x11

  2005.     vdpau_x11

  2006.     winrt

  2007.     xlib

  2008. "

  2009. 

  2010. # options emitted with CONFIG_ prefix but not available on the command line

  2011. CONFIG_EXTRA="

  2012.     aandcttables

  2013.     ac3dsp

  2014.     audio_frame_queue

  2015.     audiodsp

  2016.     blockdsp

  2017.     bswapdsp

  2018.     cabac

  2019.     dirac_parse

  2020.     dvprofile

  2021.     exif

  2022.     faandct

  2023.     faanidct

  2024.     fdctdsp

  2025.     flacdsp

  2026.     fmtconvert

  2027.     frame_thread_encoder

  2028.     g722dsp

  2029.     golomb

  2030.     gplv3

  2031.     h263dsp

  2032.     h264chroma

  2033.     h264dsp

  2034.     h264pred

  2035.     h264qpel

  2036.     hpeldsp

  2037.     huffman

  2038.     huffyuvdsp

  2039.     huffyuvencdsp

  2040.     idctdsp

  2041.     iirfilter

  2042.     imdct15

  2043.     intrax8

  2044.     iso_media

  2045.     ividsp

  2046.     jpegtables

  2047.     lgplv3

  2048.     libx262

  2049.     llauddsp

  2050.     llviddsp

  2051.     lpc

  2052.     lzf

  2053.     me_cmp

  2054.     mpeg_er

  2055.     mpegaudio

  2056.     mpegaudiodsp

  2057.     mpegvideo

  2058.     mpegvideoenc

  2059.     mss34dsp

  2060.     pixblockdsp

  2061.     qpeldsp

  2062.     qsv

  2063.     qsvdec

  2064.     qsvenc

  2065.     rangecoder

  2066.     riffdec

  2067.     riffenc

  2068.     rtpdec

  2069.     rtpenc_chain

  2070.     rv34dsp

  2071.     sinewin

  2072.     snappy

  2073.     srtp

  2074.     startcode

  2075.     texturedsp

  2076.     texturedspenc

  2077.     tpeldsp

  2078.     vc1dsp

  2079.     videodsp

  2080.     vp3dsp

  2081.     vp56dsp

  2082.     vp8dsp

  2083.     vt_bt2020

  2084.     wma_freqs

  2085.     wmv2dsp

  2086. "

  2087. 

  2088. CMDLINE_SELECT="

  2089.     $ARCH_EXT_LIST

  2090.     $CONFIG_LIST

  2091.     $HAVE_LIST_CMDLINE

  2092.     $THREADS_LIST

  2093.     asm

  2094.     cross_compile

  2095.     debug

  2096.     extra_warnings

  2097.     logging

  2098.     lto

  2099.     optimizations

  2100.     rpath

  2101.     stripping

  2102. "

  2103. 

  2104. PATHS_LIST="

  2105.     bindir

  2106.     datadir

  2107.     docdir

  2108.     incdir

  2109.     libdir

  2110.     mandir

  2111.     pkgconfigdir

  2112.     prefix

  2113.     shlibdir

  2114.     install_name_dir

  2115. "

  2116. 

  2117. CMDLINE_SET="

  2118.     $PATHS_LIST

  2119.     ar

  2120.     arch

  2121.     as

  2122.     assert_level

  2123.     build_suffix

  2124.     cc

  2125.     objcc

  2126.     cpu

  2127.     cross_prefix

  2128.     custom_allocator

  2129.     cxx

  2130.     dep_cc

  2131.     doxygen

  2132.     env

  2133.     extra_version

  2134.     gas

  2135.     host_cc

  2136.     host_cflags

  2137.     host_ld

  2138.     host_ldflags

  2139.     host_libs

  2140.     host_os

  2141.     install

  2142.     ld

  2143.     ln_s

  2144.     logfile

  2145.     malloc_prefix

  2146.     nm

  2147.     optflags

  2148.     pkg_config

  2149.     pkg_config_flags

  2150.     progs_suffix

  2151.     random_seed

  2152.     ranlib

  2153.     samples

  2154.     strip

  2155.     sws_max_filter_size

  2156.     sysinclude

  2157.     sysroot

  2158.     target_exec

  2159.     target_os

  2160.     target_path

  2161.     target_samples

  2162.     tempprefix

  2163.     toolchain

  2164.     valgrind

  2165.     yasmexe

  2166. "

  2167. 

  2168. CMDLINE_APPEND="

  2169.     extra_cflags

  2170.     extra_cxxflags

  2171.     extra_objcflags

  2172.     host_cppflags

  2173. "

  2174. 

  2175. # code dependency declarations

  2176. 

  2177. # architecture extensions

  2178. 

  2179. armv5te_deps="arm"

  2180. armv6_deps="arm"

  2181. armv6t2_deps="arm"

  2182. armv8_deps="aarch64"

  2183. neon_deps_any="aarch64 arm"

  2184. intrinsics_neon_deps="neon"

  2185. vfp_deps_any="aarch64 arm"

  2186. vfpv3_deps="vfp"

  2187. setend_deps="arm"

  2188. 

  2189. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2190. 

  2191. mipsfpu_deps="mips"

  2192. mipsdsp_deps="mips"

  2193. mipsdspr2_deps="mips"

  2194. mips32r2_deps="mips"

  2195. mips32r5_deps="mips"

  2196. mips32r6_deps="mips"

  2197. mips64r2_deps="mips"

  2198. mips64r6_deps="mips"

  2199. msa_deps="mipsfpu"

  2200. mmi_deps="mips"

  2201. 

  2202. altivec_deps="ppc"

  2203. dcbzl_deps="ppc"

  2204. ldbrx_deps="ppc"

  2205. ppc4xx_deps="ppc"

  2206. vsx_deps="altivec"

  2207. power8_deps="vsx"

  2208. 

  2209. cpunop_deps="i686"

  2210. x86_64_select="i686"

  2211. x86_64_suggest="fast_cmov"

  2212. 

  2213. amd3dnow_deps="mmx"

  2214. amd3dnowext_deps="amd3dnow"

  2215. i686_deps="x86"

  2216. mmx_deps="x86"

  2217. mmxext_deps="mmx"

  2218. sse_deps="mmxext"

  2219. sse2_deps="sse"

  2220. sse3_deps="sse2"

  2221. ssse3_deps="sse3"

  2222. sse4_deps="ssse3"

  2223. sse42_deps="sse4"

  2224. aesni_deps="sse42"

  2225. avx_deps="sse42"

  2226. xop_deps="avx"

  2227. fma3_deps="avx"

  2228. fma4_deps="avx"

  2229. avx2_deps="avx"

  2230. 

  2231. mmx_external_deps="yasm"

  2232. mmx_inline_deps="inline_asm"

  2233. mmx_suggest="mmx_external mmx_inline"

  2234. 

  2235. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2236.     eval dep=\$${ext}_deps

  2237.     eval ${ext}_external_deps='"${dep}_external"'

  2238.     eval ${ext}_inline_deps='"${dep}_inline"'

  2239.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2240. done

  2241. 

  2242. aligned_stack_if_any="aarch64 ppc x86"

  2243. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2244. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2245. fast_unaligned_if_any="aarch64 ppc x86"

  2246. simd_align_16_if_any="altivec neon sse"

  2247. 

  2248. # system capabilities

  2249. symver_if_any="symver_asm_label symver_gnu_asm"

  2250. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2251. 

  2252. # threading support

  2253. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2254. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2255. atomics_win32_if="MemoryBarrier"

  2256. atomics_native_if_any="$ATOMICS_LIST"

  2257. w32threads_deps="atomics_native"

  2258. threads_if_any="$THREADS_LIST"

  2259. 

  2260. # subsystems

  2261. dct_select="rdft"

  2262. dirac_parse_select="golomb"

  2263. error_resilience_select="me_cmp"

  2264. faandct_deps="faan fdctdsp"

  2265. faanidct_deps="faan idctdsp"

  2266. h264dsp_select="startcode"

  2267. frame_thread_encoder_deps="encoders threads"

  2268. intrax8_select="blockdsp idctdsp"

  2269. mdct_select="fft"

  2270. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2271. mpeg_er_select="error_resilience"

  2272. mpegaudio_select="mpegaudiodsp"

  2273. mpegaudiodsp_select="dct"

  2274. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2275. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2276. qsvdec_select="qsv"

  2277. qsvenc_select="qsv"

  2278. vc1dsp_select="h264chroma qpeldsp startcode"

  2279. rdft_select="fft"

  2280. 

  2281. # decoders / encoders

  2282. aac_decoder_select="imdct15 mdct sinewin"

  2283. aac_fixed_decoder_select="mdct sinewin"

  2284. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2285. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2286. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2287. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2288. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2289. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2290. adpcm_g722_decoder_select="g722dsp"

  2291. adpcm_g722_encoder_select="g722dsp"

  2292. aic_decoder_select="golomb idctdsp"

  2293. alac_encoder_select="lpc"

  2294. als_decoder_select="bswapdsp"

  2295. amrnb_decoder_select="lsp"

  2296. amrwb_decoder_select="lsp"

  2297. amv_decoder_select="sp5x_decoder exif"

  2298. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2299. ape_decoder_select="bswapdsp llauddsp"

  2300. apng_decoder_select="zlib"

  2301. apng_encoder_select="huffyuvencdsp zlib"

  2302. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2303. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2304. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2305. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2306. atrac1_decoder_select="mdct sinewin"

  2307. atrac3_decoder_select="mdct"

  2308. atrac3p_decoder_select="mdct sinewin"

  2309. avrn_decoder_select="exif jpegtables"

  2310. bink_decoder_select="blockdsp hpeldsp"

  2311. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2312. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2313. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2314. cllc_decoder_select="bswapdsp"

  2315. comfortnoise_encoder_select="lpc"

  2316. cook_decoder_select="audiodsp mdct sinewin"

  2317. cscd_decoder_select="lzo"

  2318. cscd_decoder_suggest="zlib"

  2319. dca_decoder_select="mdct"

  2320. dds_decoder_select="texturedsp"

  2321. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2322. dnxhd_decoder_select="blockdsp idctdsp"

  2323. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2324. dvvideo_decoder_select="dvprofile idctdsp"

  2325. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2326. dxa_decoder_select="zlib"

  2327. dxv_decoder_select="lzf texturedsp"

  2328. eac3_decoder_select="ac3_decoder"

  2329. eac3_encoder_select="ac3_encoder"

  2330. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2331. eatgq_decoder_select="aandcttables"

  2332. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2333. exr_decoder_select="zlib"

  2334. ffv1_decoder_select="golomb rangecoder"

  2335. ffv1_encoder_select="rangecoder"

  2336. ffvhuff_decoder_select="huffyuv_decoder"

  2337. ffvhuff_encoder_select="huffyuv_encoder"

  2338. fic_decoder_select="golomb"

  2339. flac_decoder_select="flacdsp golomb"

  2340. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2341. flashsv2_decoder_select="zlib"

  2342. flashsv2_encoder_select="zlib"

  2343. flashsv_decoder_select="zlib"

  2344. flashsv_encoder_select="zlib"

  2345. flv_decoder_select="h263_decoder"

  2346. flv_encoder_select="h263_encoder"

  2347. fourxm_decoder_select="blockdsp bswapdsp"

  2348. fraps_decoder_select="bswapdsp huffman"

  2349. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2350. g729_decoder_select="audiodsp"

  2351. h261_decoder_select="mpegvideo"

  2352. h261_encoder_select="aandcttables mpegvideoenc"

  2353. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2354. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2355. h263i_decoder_select="h263_decoder"

  2356. h263p_decoder_select="h263_decoder"

  2357. h263p_encoder_select="h263_encoder"

  2358. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"

  2359. h264_decoder_suggest="error_resilience"

  2360. h264_qsv_decoder_deps="libmfx"

  2361. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2362. h264_qsv_encoder_deps="libmfx"

  2363. h264_qsv_encoder_select="qsvenc"

  2364. hap_decoder_select="snappy texturedsp"

  2365. hap_encoder_deps="libsnappy"

  2366. hap_encoder_select="texturedspenc"

  2367. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2368. hevc_qsv_decoder_deps="libmfx"

  2369. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2370. hevc_qsv_encoder_deps="libmfx"

  2371. hevc_qsv_encoder_select="qsvenc"

  2372. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2373. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2374. iac_decoder_select="imc_decoder"

  2375. imc_decoder_select="bswapdsp fft mdct sinewin"

  2376. indeo3_decoder_select="hpeldsp"

  2377. indeo4_decoder_select="ividsp"

  2378. indeo5_decoder_select="ividsp"

  2379. interplay_video_decoder_select="hpeldsp"

  2380. jpegls_decoder_select="golomb mjpeg_decoder"

  2381. jpegls_encoder_select="golomb"

  2382. jv_decoder_select="blockdsp"

  2383. lagarith_decoder_select="huffyuvdsp"

  2384. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2385. loco_decoder_select="golomb"

  2386. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2387. metasound_decoder_select="lsp mdct sinewin"

  2388. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2389. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2390. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2391. mjpegb_decoder_select="mjpeg_decoder"

  2392. mlp_decoder_select="mlp_parser"

  2393. motionpixels_decoder_select="bswapdsp"

  2394. mp1_decoder_select="mpegaudio"

  2395. mp1float_decoder_select="mpegaudio"

  2396. mp2_decoder_select="mpegaudio"

  2397. mp2float_decoder_select="mpegaudio"

  2398. mp3_decoder_select="mpegaudio"

  2399. mp3adu_decoder_select="mpegaudio"

  2400. mp3adufloat_decoder_select="mpegaudio"

  2401. mp3float_decoder_select="mpegaudio"

  2402. mp3on4_decoder_select="mpegaudio"

  2403. mp3on4float_decoder_select="mpegaudio"

  2404. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2405. mpc8_decoder_select="mpegaudiodsp"

  2406. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2407. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2408. mpegvideo_decoder_select="mpegvideo"

  2409. mpeg1video_decoder_select="mpegvideo"

  2410. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2411. mpeg2video_decoder_select="mpegvideo"

  2412. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2413. mpeg2_qsv_decoder_deps="libmfx"

  2414. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2415. mpeg2_qsv_encoder_deps="libmfx"

  2416. mpeg2_qsv_encoder_select="qsvenc"

  2417. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2418. mpeg4_encoder_select="h263_encoder"

  2419. msa1_decoder_select="mss34dsp"

  2420. msmpeg4v1_decoder_select="h263_decoder"

  2421. msmpeg4v2_decoder_select="h263_decoder"

  2422. msmpeg4v2_encoder_select="h263_encoder"

  2423. msmpeg4v3_decoder_select="h263_decoder"

  2424. msmpeg4v3_encoder_select="h263_encoder"

  2425. mss2_decoder_select="vc1_decoder mpegvideo"

  2426. mts2_decoder_select="mss34dsp"

  2427. mxpeg_decoder_select="mjpeg_decoder"

  2428. nellymoser_decoder_select="mdct sinewin"

  2429. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2430. nuv_decoder_select="idctdsp lzo"

  2431. on2avc_decoder_select="mdct"

  2432. opus_decoder_deps="swresample"

  2433. opus_decoder_select="imdct15"

  2434. png_decoder_select="zlib"

  2435. png_encoder_select="huffyuvencdsp zlib"

  2436. prores_decoder_select="blockdsp idctdsp"

  2437. prores_encoder_select="fdctdsp"

  2438. qcelp_decoder_select="lsp"

  2439. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2440. ra_144_decoder_select="audiodsp"

  2441. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2442. ralf_decoder_select="golomb"

  2443. rawvideo_decoder_select="bswapdsp"

  2444. rscc_decoder_select="zlib"

  2445. rtjpeg_decoder_select="me_cmp"

  2446. rv10_decoder_select="h263_decoder"

  2447. rv10_encoder_select="h263_encoder"

  2448. rv20_decoder_select="h263_decoder"

  2449. rv20_encoder_select="h263_encoder"

  2450. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2451. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2452. screenpresso_decoder_select="zlib"

  2453. shorten_decoder_select="golomb"

  2454. sipr_decoder_select="lsp"

  2455. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2456. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2457. sonic_decoder_select="golomb rangecoder"

  2458. sonic_encoder_select="golomb rangecoder"

  2459. sonic_ls_encoder_select="golomb rangecoder"

  2460. sp5x_decoder_select="mjpeg_decoder"

  2461. svq1_decoder_select="hpeldsp"

  2462. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2463. svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"

  2464. svq3_decoder_suggest="zlib"

  2465. tak_decoder_select="audiodsp"

  2466. tdsc_decoder_select="zlib mjpeg_decoder"

  2467. theora_decoder_select="vp3_decoder"

  2468. thp_decoder_select="mjpeg_decoder"

  2469. tiff_decoder_suggest="zlib lzma"

  2470. tiff_encoder_suggest="zlib"

  2471. truehd_decoder_select="mlp_parser"

  2472. truemotion2_decoder_select="bswapdsp"

  2473. truespeech_decoder_select="bswapdsp"

  2474. tscc_decoder_select="zlib"

  2475. twinvq_decoder_select="mdct lsp sinewin"

  2476. txd_decoder_select="texturedsp"

  2477. utvideo_decoder_select="bswapdsp"

  2478. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2479. vble_decoder_select="huffyuvdsp"

  2480. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2481. vc1_qsv_decoder_deps="libmfx"

  2482. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2483. vc1image_decoder_select="vc1_decoder"

  2484. vorbis_decoder_select="mdct"

  2485. vorbis_encoder_select="mdct"

  2486. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2487. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2488. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2489. vp6a_decoder_select="vp6_decoder"

  2490. vp6f_decoder_select="vp6_decoder"

  2491. vp7_decoder_select="h264pred videodsp vp8dsp"

  2492. vp8_decoder_select="h264pred videodsp vp8dsp"

  2493. vp9_decoder_select="videodsp vp9_parser"

  2494. webp_decoder_select="vp8_decoder exif"

  2495. wmalossless_decoder_select="llauddsp"

  2496. wmapro_decoder_select="mdct sinewin wma_freqs"

  2497. wmav1_decoder_select="mdct sinewin wma_freqs"

  2498. wmav1_encoder_select="mdct sinewin wma_freqs"

  2499. wmav2_decoder_select="mdct sinewin wma_freqs"

  2500. wmav2_encoder_select="mdct sinewin wma_freqs"

  2501. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2502. wmv1_decoder_select="h263_decoder"

  2503. wmv1_encoder_select="h263_encoder"

  2504. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2505. wmv2_encoder_select="h263_encoder wmv2dsp"

  2506. wmv3_decoder_select="vc1_decoder"

  2507. wmv3image_decoder_select="wmv3_decoder"

  2508. xma1_decoder_select="wmapro_decoder"

  2509. xma2_decoder_select="wmapro_decoder"

  2510. zerocodec_decoder_select="zlib"

  2511. zlib_decoder_select="zlib"

  2512. zlib_encoder_select="zlib"

  2513. zmbv_decoder_select="zlib"

  2514. zmbv_encoder_select="zlib"

  2515. 

  2516. # platform codecs

  2517. audiotoolbox_deps="AudioToolbox_AudioToolbox_h"

  2518. audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"

  2519. 

  2520. # hardware accelerators

  2521. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2522. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2523. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2524. vaapi_deps="va_va_h"

  2525. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"

  2526. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2527. vda_deps="vda_framework pthreads"

  2528. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2529. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2530. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2531. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2532. xvmc_deps="X11_extensions_XvMClib_h"

  2533. 

  2534. h263_vaapi_hwaccel_deps="vaapi"

  2535. h263_vaapi_hwaccel_select="h263_decoder"

  2536. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2537. h263_videotoolbox_hwaccel_select="h263_decoder"

  2538. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2539. h264_d3d11va_hwaccel_deps="d3d11va"

  2540. h264_d3d11va_hwaccel_select="h264_decoder"

  2541. h264_dxva2_hwaccel_deps="dxva2"

  2542. h264_dxva2_hwaccel_select="h264_decoder"

  2543. h264_mediacodec_decoder_deps="mediacodec"

  2544. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2545. h264_mmal_decoder_deps="mmal"

  2546. h264_mmal_decoder_select="mmal"

  2547. h264_mmal_hwaccel_deps="mmal"

  2548. h264_qsv_hwaccel_deps="libmfx"

  2549. h264_vaapi_hwaccel_deps="vaapi"

  2550. h264_vaapi_hwaccel_select="h264_decoder"

  2551. h264_vda_decoder_deps="vda"

  2552. h264_vda_decoder_select="h264_decoder"

  2553. h264_vda_hwaccel_deps="vda"

  2554. h264_vda_hwaccel_select="h264_decoder"

  2555. h264_vda_old_hwaccel_deps="vda"

  2556. h264_vda_old_hwaccel_select="h264_decoder"

  2557. h264_vdpau_decoder_deps="vdpau"

  2558. h264_vdpau_decoder_select="h264_decoder"

  2559. h264_vdpau_hwaccel_deps="vdpau"

  2560. h264_vdpau_hwaccel_select="h264_decoder"

  2561. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2562. h264_videotoolbox_hwaccel_select="h264_decoder"

  2563. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2564. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2565. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2566. hevc_dxva2_hwaccel_select="hevc_decoder"

  2567. hevc_qsv_hwaccel_deps="libmfx"

  2568. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2569. hevc_vaapi_hwaccel_select="hevc_decoder"

  2570. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2571. hevc_vdpau_hwaccel_select="hevc_decoder"

  2572. mpeg_vdpau_decoder_deps="vdpau"

  2573. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2574. mpeg_xvmc_hwaccel_deps="xvmc"

  2575. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2576. mpeg1_vdpau_decoder_deps="vdpau"

  2577. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2578. mpeg1_vdpau_hwaccel_deps="vdpau"

  2579. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2580. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2581. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2582. mpeg1_xvmc_hwaccel_deps="xvmc"

  2583. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2584. mpeg2_crystalhd_decoder_select="crystalhd"

  2585. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2586. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2587. mpeg2_dxva2_hwaccel_deps="dxva2"

  2588. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2589. mpeg2_mmal_decoder_deps="mmal"

  2590. mpeg2_mmal_decoder_select="mmal"

  2591. mpeg2_mmal_hwaccel_deps="mmal"

  2592. mpeg2_qsv_hwaccel_deps="libmfx"

  2593. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2594. mpeg2_vaapi_hwaccel_deps="vaapi"

  2595. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2596. mpeg2_vdpau_hwaccel_deps="vdpau"

  2597. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2598. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2599. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2600. mpeg2_xvmc_hwaccel_deps="xvmc"

  2601. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2602. mpeg4_crystalhd_decoder_select="crystalhd"

  2603. mpeg4_mmal_decoder_deps="mmal"

  2604. mpeg4_mmal_decoder_select="mmal"

  2605. mpeg4_mmal_hwaccel_deps="mmal"

  2606. mpeg4_vaapi_hwaccel_deps="vaapi"

  2607. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2608. mpeg4_vdpau_decoder_deps="vdpau"

  2609. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2610. mpeg4_vdpau_hwaccel_deps="vdpau"

  2611. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2612. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2613. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2614. msmpeg4_crystalhd_decoder_select="crystalhd"

  2615. vc1_crystalhd_decoder_select="crystalhd"

  2616. vc1_d3d11va_hwaccel_deps="d3d11va"

  2617. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2618. vc1_dxva2_hwaccel_deps="dxva2"

  2619. vc1_dxva2_hwaccel_select="vc1_decoder"

  2620. vc1_mmal_decoder_deps="mmal"

  2621. vc1_mmal_decoder_select="mmal"

  2622. vc1_mmal_hwaccel_deps="mmal"

  2623. vc1_qsv_hwaccel_deps="libmfx"

  2624. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2625. vc1_vaapi_hwaccel_deps="vaapi"

  2626. vc1_vaapi_hwaccel_select="vc1_decoder"

  2627. vc1_vdpau_decoder_deps="vdpau"

  2628. vc1_vdpau_decoder_select="vc1_decoder"

  2629. vc1_vdpau_hwaccel_deps="vdpau"

  2630. vc1_vdpau_hwaccel_select="vc1_decoder"

  2631. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2632. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2633. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2634. vp9_dxva2_hwaccel_select="vp9_decoder"

  2635. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"

  2636. vp9_vaapi_hwaccel_select="vp9_decoder"

  2637. wmv3_crystalhd_decoder_select="crystalhd"

  2638. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2639. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2640. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2641. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2642. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2643. 

  2644. # parsers

  2645. h264_parser_select="h264_decoder"

  2646. hevc_parser_select="golomb"

  2647. mpegvideo_parser_select="mpegvideo"

  2648. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2649. vc1_parser_select="vc1dsp"

  2650. 

  2651. # bitstream_filters

  2652. mjpeg2jpeg_bsf_select="jpegtables"

  2653. 

  2654. # external libraries

  2655. aac_at_decoder_deps="audiotoolbox"

  2656. ac3_at_decoder_deps="audiotoolbox"

  2657. ac3_at_decoder_select="ac3_parser"

  2658. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2659. alac_at_decoder_deps="audiotoolbox"

  2660. amr_nb_at_decoder_deps="audiotoolbox"

  2661. eac3_at_decoder_deps="audiotoolbox"

  2662. eac3_at_decoder_select="ac3_parser"

  2663. gsm_ms_at_decoder_deps="audiotoolbox"

  2664. ilbc_at_decoder_deps="audiotoolbox"

  2665. mp1_at_decoder_deps="audiotoolbox"

  2666. mp2_at_decoder_deps="audiotoolbox"

  2667. mp3_at_decoder_deps="audiotoolbox"

  2668. pcm_alaw_at_decoder_deps="audiotoolbox"

  2669. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2670. qdmc_at_decoder_deps="audiotoolbox"

  2671. qdm2_at_decoder_deps="audiotoolbox"

  2672. aac_at_encoder_deps="audiotoolbox"

  2673. aac_at_encoder_select="audio_frame_queue"

  2674. alac_at_encoder_deps="audiotoolbox"

  2675. alac_at_encoder_select="audio_frame_queue"

  2676. ilbc_at_encoder_deps="audiotoolbox"

  2677. ilbc_at_encoder_select="audio_frame_queue"

  2678. pcm_alaw_at_encoder_deps="audiotoolbox"

  2679. pcm_alaw_at_encoder_select="audio_frame_queue"

  2680. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2681. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2682. chromaprint_muxer_deps="chromaprint"

  2683. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2684. libcelt_decoder_deps="libcelt"

  2685. libfaac_encoder_deps="libfaac"

  2686. libfaac_encoder_select="audio_frame_queue"

  2687. libfdk_aac_decoder_deps="libfdk_aac"

  2688. libfdk_aac_encoder_deps="libfdk_aac"

  2689. libfdk_aac_encoder_select="audio_frame_queue"

  2690. libgme_demuxer_deps="libgme"

  2691. libgsm_decoder_deps="libgsm"

  2692. libgsm_encoder_deps="libgsm"

  2693. libgsm_ms_decoder_deps="libgsm"

  2694. libgsm_ms_encoder_deps="libgsm"

  2695. libilbc_decoder_deps="libilbc"

  2696. libilbc_encoder_deps="libilbc"

  2697. libkvazaar_encoder_deps="libkvazaar"

  2698. libmodplug_demuxer_deps="libmodplug"

  2699. libmp3lame_encoder_deps="libmp3lame"

  2700. libmp3lame_encoder_select="audio_frame_queue"

  2701. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2702. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2703. libopencore_amrnb_encoder_select="audio_frame_queue"

  2704. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2705. libopenh264_encoder_deps="libopenh264"

  2706. libopenjpeg_decoder_deps="libopenjpeg"

  2707. libopenjpeg_encoder_deps="libopenjpeg"

  2708. libopus_decoder_deps="libopus"

  2709. libopus_encoder_deps="libopus"

  2710. libopus_encoder_select="audio_frame_queue"

  2711. libschroedinger_decoder_deps="libschroedinger"

  2712. libschroedinger_encoder_deps="libschroedinger"

  2713. libshine_encoder_deps="libshine"

  2714. libshine_encoder_select="audio_frame_queue"

  2715. libspeex_decoder_deps="libspeex"

  2716. libspeex_encoder_deps="libspeex"

  2717. libspeex_encoder_select="audio_frame_queue"

  2718. libtheora_encoder_deps="libtheora"

  2719. libtwolame_encoder_deps="libtwolame"

  2720. libutvideo_decoder_deps="libutvideo"

  2721. libutvideo_encoder_deps="libutvideo"

  2722. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2723. libvorbis_decoder_deps="libvorbis"

  2724. libvorbis_encoder_deps="libvorbis"

  2725. libvorbis_encoder_select="audio_frame_queue"

  2726. libvpx_vp8_decoder_deps="libvpx"

  2727. libvpx_vp8_encoder_deps="libvpx"

  2728. libvpx_vp9_decoder_deps="libvpx"

  2729. libvpx_vp9_encoder_deps="libvpx"

  2730. libwavpack_encoder_deps="libwavpack"

  2731. libwebp_encoder_deps="libwebp"

  2732. libwebp_anim_encoder_deps="libwebp"

  2733. libx262_encoder_deps="libx262"

  2734. libx264_encoder_deps="libx264"

  2735. libx264rgb_encoder_deps="libx264"

  2736. libx264rgb_encoder_select="libx264_encoder"

  2737. libx265_encoder_deps="libx265"

  2738. libxavs_encoder_deps="libxavs"

  2739. libxvid_encoder_deps="libxvid"

  2740. libzvbi_teletext_decoder_deps="libzvbi"

  2741. nvenc_encoder_deps="nvenc"

  2742. nvenc_h264_encoder_deps="nvenc"

  2743. nvenc_hevc_encoder_deps="nvenc"

  2744. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2745. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2746. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2747. videotoolbox_encoder_suggest="vda_framework vt_bt2020"

  2748. vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"

  2749. 

  2750. # demuxers / muxers

  2751. ac3_demuxer_select="ac3_parser"

  2752. asf_demuxer_select="riffdec"

  2753. asf_o_demuxer_select="riffdec"

  2754. asf_muxer_select="riffenc"

  2755. asf_stream_muxer_select="asf_muxer"

  2756. avi_demuxer_select="iso_media riffdec exif"

  2757. avi_muxer_select="riffenc"

  2758. avisynth_demuxer_deps="avisynth"

  2759. avisynth_demuxer_select="riffdec"

  2760. caf_demuxer_select="iso_media riffdec"

  2761. dash_muxer_select="mp4_muxer"

  2762. dirac_demuxer_select="dirac_parser"

  2763. dts_demuxer_select="dca_parser"

  2764. dtshd_demuxer_select="dca_parser"

  2765. dv_demuxer_select="dvprofile"

  2766. dv_muxer_select="dvprofile"

  2767. dxa_demuxer_select="riffdec"

  2768. eac3_demuxer_select="ac3_parser"

  2769. f4v_muxer_select="mov_muxer"

  2770. flac_demuxer_select="flac_parser"

  2771. hds_muxer_select="flv_muxer"

  2772. hls_muxer_select="mpegts_muxer"

  2773. image2_alias_pix_demuxer_select="image2_demuxer"

  2774. image2_brender_pix_demuxer_select="image2_demuxer"

  2775. ipod_muxer_select="mov_muxer"

  2776. ismv_muxer_select="mov_muxer"

  2777. libnut_demuxer_deps="libnut"

  2778. libnut_muxer_deps="libnut"

  2779. matroska_audio_muxer_select="matroska_muxer"

  2780. matroska_demuxer_select="iso_media riffdec"

  2781. matroska_demuxer_suggest="bzlib lzo zlib"

  2782. matroska_muxer_select="iso_media riffenc"

  2783. mmf_muxer_select="riffenc"

  2784. mov_demuxer_select="iso_media riffdec"

  2785. mov_demuxer_suggest="zlib"

  2786. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2787. mp3_demuxer_select="mpegaudio_parser"

  2788. mp4_muxer_select="mov_muxer"

  2789. mpegts_demuxer_select="iso_media"

  2790. mpegts_muxer_select="adts_muxer latm_muxer"

  2791. mpegtsraw_demuxer_select="mpegts_demuxer"

  2792. mxf_d10_muxer_select="mxf_muxer"

  2793. mxf_opatom_muxer_select="mxf_muxer"

  2794. nut_muxer_select="riffenc"

  2795. nuv_demuxer_select="riffdec"

  2796. oga_muxer_select="ogg_muxer"

  2797. ogg_demuxer_select="dirac_parse"

  2798. opus_muxer_select="ogg_muxer"

  2799. psp_muxer_select="mov_muxer"

  2800. rtp_demuxer_select="sdp_demuxer"

  2801. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  2802. rtsp_demuxer_select="http_protocol rtpdec"

  2803. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2804. sap_demuxer_select="sdp_demuxer"

  2805. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2806. sdp_demuxer_select="rtpdec"

  2807. smoothstreaming_muxer_select="ismv_muxer"

  2808. spdif_muxer_select="aac_parser"

  2809. spx_muxer_select="ogg_muxer"

  2810. swf_demuxer_suggest="zlib"

  2811. tak_demuxer_select="tak_parser"

  2812. tg2_muxer_select="mov_muxer"

  2813. tgp_muxer_select="mov_muxer"

  2814. vobsub_demuxer_select="mpegps_demuxer"

  2815. w64_demuxer_select="wav_demuxer"

  2816. w64_muxer_select="wav_muxer"

  2817. wav_demuxer_select="riffdec"

  2818. wav_muxer_select="riffenc"

  2819. webm_muxer_select="iso_media riffenc"

  2820. webm_dash_manifest_demuxer_select="matroska_demuxer"

  2821. wtv_demuxer_select="mpegts_demuxer riffdec"

  2822. wtv_muxer_select="mpegts_muxer riffenc"

  2823. xmv_demuxer_select="riffdec"

  2824. xwma_demuxer_select="riffdec"

  2825. 

  2826. # indevs / outdevs

  2827. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2828. alsa_outdev_deps="alsa_asoundlib_h"

  2829. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2830. avfoundation_indev_select="avfoundation"

  2831. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2832. caca_outdev_deps="libcaca"

  2833. decklink_indev_deps="decklink pthreads"

  2834. decklink_indev_extralibs="-lstdc++"

  2835. decklink_outdev_deps="decklink pthreads"

  2836. decklink_outdev_extralibs="-lstdc++"

  2837. dshow_indev_deps="IBaseFilter"

  2838. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2839. dv1394_indev_deps="dv1394"

  2840. dv1394_indev_select="dv_demuxer"

  2841. fbdev_indev_deps="linux_fb_h"

  2842. fbdev_outdev_deps="linux_fb_h"

  2843. gdigrab_indev_deps="CreateDIBSection"

  2844. gdigrab_indev_extralibs="-lgdi32"

  2845. gdigrab_indev_select="bmp_decoder"

  2846. iec61883_indev_deps="libiec61883"

  2847. jack_indev_deps="jack_jack_h"

  2848. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  2849. lavfi_indev_deps="avfilter"

  2850. libcdio_indev_deps="libcdio"

  2851. libdc1394_indev_deps="libdc1394"

  2852. libv4l2_indev_deps="libv4l2"

  2853. openal_indev_deps="openal"

  2854. opengl_outdev_deps="opengl"

  2855. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2856. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2857. pulse_indev_deps="libpulse"

  2858. pulse_outdev_deps="libpulse"

  2859. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2860. qtkit_indev_select="qtkit"

  2861. sdl_outdev_deps="sdl"

  2862. sndio_indev_deps="sndio_h"

  2863. sndio_outdev_deps="sndio_h"

  2864. v4l_indev_deps="linux_videodev_h"

  2865. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2866. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2867. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2868. vfwcap_indev_extralibs="-lavicap32"

  2869. x11grab_indev_deps="x11grab"

  2870. x11grab_xcb_indev_deps="libxcb"

  2871. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2872. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2873. 

  2874. # protocols

  2875. async_protocol_deps="threads"

  2876. bluray_protocol_deps="libbluray"

  2877. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2878. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2879. ffrtmpcrypt_protocol_select="tcp_protocol"

  2880. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2881. ffrtmphttp_protocol_select="http_protocol"

  2882. ftp_protocol_select="tcp_protocol"

  2883. gopher_protocol_select="network"

  2884. http_protocol_select="tcp_protocol"

  2885. httpproxy_protocol_select="tcp_protocol"

  2886. https_protocol_select="tls_protocol"

  2887. icecast_protocol_select="http_protocol"

  2888. librtmp_protocol_deps="librtmp"

  2889. librtmpe_protocol_deps="librtmp"

  2890. librtmps_protocol_deps="librtmp"

  2891. librtmpt_protocol_deps="librtmp"

  2892. librtmpte_protocol_deps="librtmp"

  2893. libsmbclient_protocol_deps="libsmbclient gplv3"

  2894. libssh_protocol_deps="libssh"

  2895. mmsh_protocol_select="http_protocol"

  2896. mmst_protocol_select="network"

  2897. rtmp_protocol_deps="!librtmp_protocol"

  2898. rtmp_protocol_select="tcp_protocol"

  2899. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2900. rtmps_protocol_deps="!librtmp_protocol"

  2901. rtmps_protocol_select="tls_protocol"

  2902. rtmpt_protocol_select="ffrtmphttp_protocol"

  2903. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2904. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2905. rtp_protocol_select="udp_protocol"

  2906. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  2907. sctp_protocol_select="network"

  2908. srtp_protocol_select="rtp_protocol srtp"

  2909. tcp_protocol_select="network"

  2910. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  2911. tls_gnutls_protocol_select="tcp_protocol"

  2912. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  2913. tls_openssl_protocol_select="tcp_protocol"

  2914. tls_schannel_protocol_deps="schannel"

  2915. tls_schannel_protocol_select="tcp_protocol"

  2916. tls_securetransport_protocol_deps="securetransport"

  2917. tls_securetransport_protocol_select="tcp_protocol"

  2918. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  2919. udp_protocol_select="network"

  2920. udplite_protocol_select="network"

  2921. unix_protocol_deps="sys_un_h"

  2922. unix_protocol_select="network"

  2923. 

  2924. # filters

  2925. afftfilt_filter_deps="avcodec"

  2926. afftfilt_filter_select="fft"

  2927. amovie_filter_deps="avcodec avformat"

  2928. aresample_filter_deps="swresample"

  2929. ass_filter_deps="libass"

  2930. asyncts_filter_deps="avresample"

  2931. atempo_filter_deps="avcodec"

  2932. atempo_filter_select="rdft"

  2933. azmq_filter_deps="libzmq"

  2934. blackframe_filter_deps="gpl"

  2935. boxblur_filter_deps="gpl"

  2936. bs2b_filter_deps="libbs2b"

  2937. colormatrix_filter_deps="gpl"

  2938. cover_rect_filter_deps="avcodec avformat gpl"

  2939. cropdetect_filter_deps="gpl"

  2940. delogo_filter_deps="gpl"

  2941. deshake_filter_select="pixelutils"

  2942. drawtext_filter_deps="libfreetype"

  2943. ebur128_filter_deps="gpl"

  2944. eq_filter_deps="gpl"

  2945. fftfilt_filter_deps="avcodec"

  2946. fftfilt_filter_select="rdft"

  2947. find_rect_filter_deps="avcodec avformat gpl"

  2948. firequalizer_filter_deps="avcodec"

  2949. firequalizer_filter_select="rdft"

  2950. flite_filter_deps="libflite"

  2951. framerate_filter_select="pixelutils"

  2952. frei0r_filter_deps="frei0r dlopen"

  2953. frei0r_src_filter_deps="frei0r dlopen"

  2954. fspp_filter_deps="gpl"

  2955. geq_filter_deps="gpl"

  2956. histeq_filter_deps="gpl"

  2957. hqdn3d_filter_deps="gpl"

  2958. hwupload_cuda_filter_deps="cuda"

  2959. interlace_filter_deps="gpl"

  2960. kerndeint_filter_deps="gpl"

  2961. ladspa_filter_deps="ladspa dlopen"

  2962. mcdeint_filter_deps="avcodec gpl"

  2963. movie_filter_deps="avcodec avformat"

  2964. mpdecimate_filter_deps="gpl"

  2965. mpdecimate_filter_select="pixelutils"

  2966. mptestsrc_filter_deps="gpl"

  2967. negate_filter_deps="lut_filter"

  2968. nnedi_filter_deps="gpl"

  2969. ocr_filter_deps="libtesseract"

  2970. ocv_filter_deps="libopencv"

  2971. owdenoise_filter_deps="gpl"

  2972. pan_filter_deps="swresample"

  2973. perspective_filter_deps="gpl"

  2974. phase_filter_deps="gpl"

  2975. pp7_filter_deps="gpl"

  2976. pp_filter_deps="gpl postproc"

  2977. pullup_filter_deps="gpl"

  2978. removelogo_filter_deps="avcodec avformat swscale"

  2979. repeatfields_filter_deps="gpl"

  2980. resample_filter_deps="avresample"

  2981. rubberband_filter_deps="librubberband"

  2982. sab_filter_deps="gpl swscale"

  2983. scale2ref_filter_deps="swscale"

  2984. scale_filter_deps="swscale"

  2985. select_filter_select="pixelutils"

  2986. showcqt_filter_deps="avcodec avformat swscale"

  2987. showcqt_filter_select="fft"

  2988. showfreqs_filter_deps="avcodec"

  2989. showfreqs_filter_select="fft"

  2990. showspectrum_filter_deps="avcodec"

  2991. showspectrum_filter_select="fft"

  2992. showspectrumpic_filter_deps="avcodec"

  2993. showspectrumpic_filter_select="fft"

  2994. smartblur_filter_deps="gpl swscale"

  2995. sofalizer_filter_deps="netcdf avcodec"

  2996. sofalizer_filter_select="fft"

  2997. spectrumsynth_filter_deps="avcodec"

  2998. spectrumsynth_filter_select="fft"

  2999. spp_filter_deps="gpl avcodec"

  3000. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3001. stereo3d_filter_deps="gpl"

  3002. subtitles_filter_deps="avformat avcodec libass"

  3003. super2xsai_filter_deps="gpl"

  3004. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3005. tinterlace_filter_deps="gpl"

  3006. tinterlace_merge_test_deps="tinterlace_filter"

  3007. tinterlace_pad_test_deps="tinterlace_filter"

  3008. uspp_filter_deps="gpl avcodec"

  3009. vidstabdetect_filter_deps="libvidstab"

  3010. vidstabtransform_filter_deps="libvidstab"

  3011. zmq_filter_deps="libzmq"

  3012. zoompan_filter_deps="swscale"

  3013. zscale_filter_deps="libzimg"

  3014. scale_npp_filter_deps="cuda libnpp"

  3015. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3016. 

  3017. # examples

  3018. avcodec_example_deps="avcodec avutil"

  3019. avio_dir_cmd="avformat avutil"

  3020. avio_reading="avformat avcodec avutil"

  3021. decoding_encoding_example_deps="avcodec avformat avutil"

  3022. demuxing_decoding_example_deps="avcodec avformat avutil"

  3023. extract_mvs_example_deps="avcodec avformat avutil"

  3024. filter_audio_example_deps="avfilter avutil"

  3025. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3026. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3027. metadata_example_deps="avformat avutil"

  3028. muxing_example_deps="avcodec avformat avutil swscale"

  3029. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  3030. remuxing_example_deps="avcodec avformat avutil"

  3031. resampling_audio_example_deps="avutil swresample"

  3032. scaling_video_example_deps="avutil swscale"

  3033. transcode_aac_example_deps="avcodec avformat swresample"

  3034. transcoding_example_deps="avfilter avcodec avformat avutil"

  3035. 

  3036. # libraries, in linking order

  3037. avcodec_deps="avutil"

  3038. avdevice_deps="avformat avcodec avutil"

  3039. avfilter_deps="avutil"

  3040. avformat_deps="avcodec avutil"

  3041. avresample_deps="avutil"

  3042. postproc_deps="avutil gpl"

  3043. swresample_deps="avutil"

  3044. swscale_deps="avutil"

  3045. 

  3046. # programs

  3047. ffmpeg_deps="avcodec avfilter avformat swresample"

  3048. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3049.                null_filter

  3050.                setpts_filter trim_filter"

  3051. ffplay_deps="avcodec avformat swscale swresample sdl"

  3052. ffplay_libs='$sdl_libs'

  3053. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3054. ffprobe_deps="avcodec avformat"

  3055. ffserver_deps="avformat fork sarestart"

  3056. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3057. 

  3058. # documentation

  3059. podpages_deps="perl"

  3060. manpages_deps="perl pod2man"

  3061. htmlpages_deps="perl"

  3062. htmlpages_deps_any="makeinfo_html texi2html"

  3063. txtpages_deps="perl makeinfo"

  3064. doc_deps_any="manpages htmlpages podpages txtpages"

  3065. 

  3066. # default parameters

  3067. 

  3068. logfile="config.log"

  3069. 

  3070. # installation paths

  3071. prefix_default="/usr/local"

  3072. bindir_default='${prefix}/bin'

  3073. datadir_default='${prefix}/share/ffmpeg'

  3074. docdir_default='${prefix}/share/doc/ffmpeg'

  3075. incdir_default='${prefix}/include'

  3076. libdir_default='${prefix}/lib'

  3077. mandir_default='${prefix}/share/man'

  3078. 

  3079. # toolchain

  3080. ar_default="ar"

  3081. cc_default="gcc"

  3082. cxx_default="g++"

  3083. host_cc_default="gcc"

  3084. cp_f="cp -f"

  3085. doxygen_default="doxygen"

  3086. install="install"

  3087. ln_s_default="ln -s -f"

  3088. nm_default="nm -g"

  3089. objformat="elf"

  3090. pkg_config_default=pkg-config

  3091. ranlib_default="ranlib"

  3092. strip_default="strip"

  3093. yasmexe_default="yasm"

  3094. windres_default="windres"

  3095. 

  3096. # OS

  3097. target_os_default=$(tolower $(uname -s))

  3098. host_os=$target_os_default

  3099. 

  3100. # machine

  3101. if test "$target_os_default" = aix; then

  3102.     arch_default=$(uname -p)

  3103.     strip_default="strip -X32_64"

  3104. else

  3105.     arch_default=$(uname -m)

  3106. fi

  3107. cpu="generic"

  3108. intrinsics="none"

  3109. 

  3110. # configurable options

  3111. enable $PROGRAM_LIST

  3112. enable $DOCUMENT_LIST

  3113. enable $EXAMPLE_LIST

  3114. enable $(filter_out avresample $LIBRARY_LIST)

  3115. enable stripping

  3116. 

  3117. enable asm

  3118. enable debug

  3119. enable doc

  3120. enable faan faandct faanidct

  3121. enable optimizations

  3122. enable runtime_cpudetect

  3123. enable safe_bitstream_reader

  3124. enable static

  3125. enable swscale_alpha

  3126. enable valgrind_backtrace

  3127. 

  3128. sws_max_filter_size_default=256

  3129. set_default sws_max_filter_size

  3130. 

  3131. # Enable platform codecs by default.

  3132. enable audiotoolbox

  3133. 

  3134. # Enable hwaccels by default.

  3135. enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc

  3136. enable xlib

  3137. 

  3138. enable vda_framework videotoolbox videotoolbox_encoder

  3139. 

  3140. # build settings

  3141. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3142. LIBPREF="lib"

  3143. LIBSUF=".a"

  3144. FULLNAME='$(NAME)$(BUILDSUF)'

  3145. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3146. SLIBPREF="lib"

  3147. SLIBSUF=".so"

  3148. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3149. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3150. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3151. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3152. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3153. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3154. 

  3155. asflags_filter=echo

  3156. cflags_filter=echo

  3157. ldflags_filter=echo

  3158. 

  3159. AS_C='-c'

  3160. AS_O='-o $@'

  3161. CC_C='-c'

  3162. CC_E='-E -o $@'

  3163. CC_O='-o $@'

  3164. CXX_C='-c'

  3165. CXX_O='-o $@'

  3166. OBJCC_C='-c'

  3167. OBJCC_E='-E -o $@'

  3168. OBJCC_O='-o $@'

  3169. LD_O='-o $@'

  3170. LD_LIB='-l%'

  3171. LD_PATH='-L'

  3172. HOSTCC_C='-c'

  3173. HOSTCC_E='-E -o $@'

  3174. HOSTCC_O='-o $@'

  3175. HOSTLD_O='-o $@'

  3176. 

  3177. host_libs='-lm'

  3178. host_cflags_filter=echo

  3179. host_ldflags_filter=echo

  3180. 

  3181. target_path='$(CURDIR)'

  3182. 

  3183. # since the object filename is not given with the -MM flag, the compiler

  3184. # is only able to print the basename, and we must add the path ourselves

  3185. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3186. DEPFLAGS='-MM'

  3187. 

  3188. # find source path

  3189. if test -f configure; then

  3190.     source_path=.

  3191. else

  3192.     source_path=$(cd $(dirname "$0"); pwd)

  3193.     case "$source_path" in

  3194.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3195.     esac

  3196.     test -e "$source_path/config.h" &&

  3197.         die "Out of tree builds are impossible with config.h in source dir."

  3198. fi

  3199. 

  3200. for v in "$@"; do

  3201.     r=${v#*=}

  3202.     l=${v%"$r"}

  3203.     r=$(sh_quote "$r")

  3204.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3205. done

  3206. 

  3207. find_things(){

  3208.     thing=$1

  3209.     pattern=$2

  3210.     file=$source_path/$3

  3211.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3212. }

  3213. 

  3214. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3215. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3216. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3217. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3218. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3219. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3220. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3221. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3222. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3223. 

  3224. find_things_extern(){

  3225.     thing=$1

  3226.     pattern=$2

  3227.     file=$source_path/$3

  3228.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3229. }

  3230. 

  3231. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3232. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3233. 

  3234. ALL_COMPONENTS="

  3235.     $BSF_LIST

  3236.     $DECODER_LIST

  3237.     $DEMUXER_LIST

  3238.     $ENCODER_LIST

  3239.     $FILTER_LIST

  3240.     $HWACCEL_LIST

  3241.     $INDEV_LIST

  3242.     $MUXER_LIST

  3243.     $OUTDEV_LIST

  3244.     $PARSER_LIST

  3245.     $PROTOCOL_LIST

  3246. "

  3247. 

  3248. for n in $COMPONENT_LIST; do

  3249.     v=$(toupper ${n%s})_LIST

  3250.     eval enable \$$v

  3251.     eval ${n}_if_any="\$$v"

  3252. done

  3253. 

  3254. enable $ARCH_EXT_LIST

  3255. 

  3256. die_unknown(){

  3257.     echo "Unknown option \"$1\"."

  3258.     echo "See $0 --help for available options."

  3259.     exit 1

  3260. }

  3261. 

  3262. print_in_columns() {

  3263.     cols=$(expr $ncols / 24)

  3264.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3265. }

  3266. 

  3267. show_list() {

  3268.     suffix=_$1

  3269.     shift

  3270.     echo $* | sed s/$suffix//g | print_in_columns

  3271.     exit 0

  3272. }

  3273. 

  3274. rand_list(){

  3275.     IFS=', '

  3276.     set -- $*

  3277.     unset IFS

  3278.     for thing; do

  3279.         comp=${thing%:*}

  3280.         prob=${thing#$comp}

  3281.         prob=${prob#:}

  3282.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3283.         echo "prob ${prob:-0.5}"

  3284.         printf '%s\n' $comp

  3285.     done

  3286. }

  3287. 

  3288. do_random(){

  3289.     action=$1

  3290.     shift

  3291.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3292.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3293. }

  3294. 

  3295. for opt do

  3296.     optval="${opt#*=}"

  3297.     case "$opt" in

  3298.         --extra-ldflags=*)

  3299.             add_ldflags $optval

  3300.         ;;

  3301.         --extra-ldexeflags=*)

  3302.             add_ldexeflags $optval

  3303.         ;;

  3304.         --extra-ldlibflags=*)

  3305.             add_ldlibflags $optval

  3306.         ;;

  3307.         --extra-libs=*)

  3308.             add_extralibs $optval

  3309.         ;;

  3310.         --disable-devices)

  3311.             disable $INDEV_LIST $OUTDEV_LIST

  3312.         ;;

  3313.         --enable-debug=*)

  3314.             debuglevel="$optval"

  3315.         ;;

  3316.         --disable-programs)

  3317.             disable $PROGRAM_LIST

  3318.         ;;

  3319.         --disable-everything)

  3320.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3321.         ;;

  3322.         --disable-all)

  3323.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3324.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3325.             enable avutil

  3326.         ;;

  3327.         --enable-random|--disable-random)

  3328.             action=${opt%%-random}

  3329.             do_random ${action#--} $COMPONENT_LIST

  3330.         ;;

  3331.         --enable-random=*|--disable-random=*)

  3332.             action=${opt%%-random=*}

  3333.             do_random ${action#--} $optval

  3334.         ;;

  3335.         --enable-*=*|--disable-*=*)

  3336.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3337.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3338.             eval list=\$$(toupper $thing)_LIST

  3339.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3340.             list=$(filter "$name" $list)

  3341.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3342.             $action $list

  3343.         ;;

  3344.         --enable-?*|--disable-?*)

  3345.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3346.             if is_in $option $COMPONENT_LIST; then

  3347.                 test $action = disable && action=unset

  3348.                 eval $action \$$(toupper ${option%s})_LIST

  3349.             elif is_in $option $CMDLINE_SELECT; then

  3350.                 $action $option

  3351.             else

  3352.                 die_unknown $opt

  3353.             fi

  3354.         ;;

  3355.         --list-*)

  3356.             NAME="${opt#--list-}"

  3357.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3358.             NAME=${NAME%s}

  3359.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3360.         ;;

  3361.         --help|-h) show_help

  3362.         ;;

  3363.         --fatal-warnings) enable fatal_warnings

  3364.         ;;

  3365.         *)

  3366.             optname="${opt%%=*}"

  3367.             optname="${optname#--}"

  3368.             optname=$(echo "$optname" | sed 's/-/_/g')

  3369.             if is_in $optname $CMDLINE_SET; then

  3370.                 eval $optname='$optval'

  3371.             elif is_in $optname $CMDLINE_APPEND; then

  3372.                 append $optname "$optval"

  3373.             else

  3374.                 die_unknown $opt

  3375.             fi

  3376.         ;;

  3377.     esac

  3378. done

  3379. 

  3380. for e in $env; do

  3381.     eval "export $e"

  3382. done

  3383. 

  3384. disabled logging && logfile=/dev/null

  3385. 

  3386. # Disable all the library-specific components if the library itself

  3387. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3388. 

  3389. disable_components(){

  3390.     disabled ${1} && disable $(

  3391.         eval components="\$$(toupper ${1})_COMPONENTS"

  3392.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3393.     )

  3394. }

  3395. 

  3396. map 'disable_components $v' $LIBRARY_LIST

  3397. 

  3398. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3399. set >> $logfile

  3400. 

  3401. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3402. 

  3403. case "$toolchain" in

  3404.     *-asan)

  3405.         cc_default="${toolchain%-asan}"

  3406.         add_cflags  -fsanitize=address

  3407.         add_ldflags -fsanitize=address

  3408.     ;;

  3409.     *-msan)

  3410.         cc_default="${toolchain%-msan}"

  3411.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3412.         add_ldflags -fsanitize=memory

  3413.     ;;

  3414.     *-tsan)

  3415.         cc_default="${toolchain%-tsan}"

  3416.         add_cflags  -fsanitize=thread -pie

  3417.         add_ldflags -fsanitize=thread -pie

  3418.         case "$toolchain" in

  3419.             gcc-tsan)

  3420.                 add_cflags  -fPIC

  3421.                 add_ldflags -fPIC

  3422.                 ;;

  3423.         esac

  3424.     ;;

  3425.     *-usan)

  3426.         cc_default="${toolchain%-usan}"

  3427.         add_cflags  -fsanitize=undefined

  3428.         add_ldflags -fsanitize=undefined

  3429.     ;;

  3430.     valgrind-*)

  3431.         target_exec_default="valgrind"

  3432.         case "$toolchain" in

  3433.             valgrind-massif)

  3434.                 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"

  3435.                 ;;

  3436.             valgrind-memcheck)

  3437.                 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"

  3438.                 ;;

  3439.         esac

  3440.     ;;

  3441.     msvc)

  3442.         # Check whether the current MSVC version needs the C99 converter.

  3443.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3444.         # support enough of C99 to build ffmpeg. Default to the new

  3445.         # behaviour if the regexp was unable to match anything, since this

  3446.         # successfully parses the version number of existing supported

  3447.         # versions that require the converter (MSVC 2010 and 2012).

  3448.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3449.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3450.             cc_default="cl"

  3451.         else

  3452.             cc_default="c99wrap cl"

  3453.         fi

  3454.         ld_default="$source_path/compat/windows/mslink"

  3455.         nm_default="dumpbin -symbols"

  3456.         ar_default="lib"

  3457.         case "$arch" in

  3458.         arm*)

  3459.             as_default="armasm"

  3460.             ;;

  3461.         esac

  3462.         target_os_default="win32"

  3463.         # Use a relative path for TMPDIR. This makes sure all the

  3464.         # ffconf temp files are written with a relative path, avoiding

  3465.         # issues with msys/win32 path conversion for MSVC parameters

  3466.         # such as -Fo<file> or -out:<file>.

  3467.         TMPDIR=.

  3468.     ;;

  3469.     icl)

  3470.         cc_default="icl"

  3471.         ld_default="xilink"

  3472.         nm_default="dumpbin -symbols"

  3473.         ar_default="xilib"

  3474.         target_os_default="win32"

  3475.         TMPDIR=.

  3476.     ;;

  3477.     gcov)

  3478.         add_cflags  -fprofile-arcs -ftest-coverage

  3479.         add_ldflags -fprofile-arcs -ftest-coverage

  3480.     ;;

  3481.     llvm-cov)

  3482.         add_cflags -fprofile-arcs -ftest-coverage

  3483.         add_ldflags --coverage

  3484.     ;;

  3485.     hardened)

  3486.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3487.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3488.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3489.     ;;

  3490.     ?*)

  3491.         die "Unknown toolchain $toolchain"

  3492.     ;;

  3493. esac

  3494. 

  3495. test -n "$cross_prefix" && enable cross_compile

  3496. 

  3497. if enabled cross_compile; then

  3498.     test -n "$arch" && test -n "$target_os" ||

  3499.         die "Must specify target arch and OS when cross-compiling"

  3500. fi

  3501. 

  3502. ar_default="${cross_prefix}${ar_default}"

  3503. cc_default="${cross_prefix}${cc_default}"

  3504. cxx_default="${cross_prefix}${cxx_default}"

  3505. nm_default="${cross_prefix}${nm_default}"

  3506. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3507. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3508.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3509. else

  3510.     ranlib_default="${cross_prefix}${ranlib_default}"

  3511. fi

  3512. strip_default="${cross_prefix}${strip_default}"

  3513. windres_default="${cross_prefix}${windres_default}"

  3514. 

  3515. sysinclude_default="${sysroot}/usr/include"

  3516. 

  3517. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3518.     target_exec target_os yasmexe

  3519. enabled cross_compile || host_cc_default=$cc

  3520. set_default host_cc

  3521. 

  3522. pkg_config_fail_message=""

  3523. if ! $pkg_config --version >/dev/null 2>&1; then

  3524.     warn "$pkg_config not found, library detection may fail."

  3525.     pkg_config=false

  3526. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3527.     pkg_config_fail_message="

  3528. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3529. fi

  3530. 

  3531. if test $doxygen != $doxygen_default && \

  3532.   ! $doxygen --version >/dev/null 2>&1; then

  3533.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3534. fi

  3535. 

  3536. exesuf() {

  3537.     case $1 in

  3538.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3539.     esac

  3540. }

  3541. 

  3542. EXESUF=$(exesuf $target_os)

  3543. HOSTEXESUF=$(exesuf $host_os)

  3544. 

  3545. # set temporary file name

  3546. : ${TMPDIR:=$TEMPDIR}

  3547. : ${TMPDIR:=$TMP}

  3548. : ${TMPDIR:=/tmp}

  3549. 

  3550. if [ -n "$tempprefix" ] ; then

  3551.     mktemp(){

  3552.         echo $tempprefix.${HOSTNAME}.${UID}

  3553.     }

  3554. elif ! check_cmd mktemp -u XXXXXX; then

  3555.     # simple replacement for missing mktemp

  3556.     # NOT SAFE FOR GENERAL USE

  3557.     mktemp(){

  3558.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3559.     }

  3560. fi

  3561. 

  3562. tmpfile(){

  3563.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3564.         (set -C; exec > $tmp) 2>/dev/null ||

  3565.         die "Unable to create temporary file in $TMPDIR."

  3566.     append TMPFILES $tmp

  3567.     eval $1=$tmp

  3568. }

  3569. 

  3570. trap 'rm -f -- $TMPFILES' EXIT

  3571. 

  3572. tmpfile TMPASM .asm

  3573. tmpfile TMPC   .c

  3574. tmpfile TMPCPP .cpp

  3575. tmpfile TMPE   $EXESUF

  3576. tmpfile TMPH   .h

  3577. tmpfile TMPM   .m

  3578. tmpfile TMPO   .o

  3579. tmpfile TMPS   .S

  3580. tmpfile TMPSH  .sh

  3581. tmpfile TMPV   .ver

  3582. 

  3583. unset -f mktemp

  3584. 

  3585. chmod +x $TMPE

  3586. 

  3587. # make sure we can execute files in $TMPDIR

  3588. cat > $TMPSH 2>> $logfile <<EOF

  3589. #! /bin/sh

  3590. EOF

  3591. chmod +x $TMPSH >> $logfile 2>&1

  3592. if ! $TMPSH >> $logfile 2>&1; then

  3593.     cat <<EOF

  3594. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3595. variable to another directory and make sure that it is not mounted noexec.

  3596. EOF

  3597.     die "Sanity test failed."

  3598. fi

  3599. 

  3600. armasm_flags(){

  3601.     for flag; do

  3602.         case $flag in

  3603.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3604.             # be passed to gas-preprocessor

  3605.             -M[TD]*)                                            ;;

  3606.             *)                  echo $flag                      ;;

  3607.         esac

  3608.    done

  3609. }

  3610. 

  3611. ccc_flags(){

  3612.     for flag; do

  3613.         case $flag in

  3614.             -std=c99)           echo -c99                       ;;

  3615.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3616.             -mieee)             echo -ieee                      ;;

  3617.             -O*|-fast)          echo $flag                      ;;

  3618.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3619.             -g)                 echo -g3                        ;;

  3620.             -Wall)              echo -msg_enable level2         ;;

  3621.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3622.             -Wl,*)              echo $flag                      ;;

  3623.             -f*|-W*)                                            ;;

  3624.             *)                  echo $flag                      ;;

  3625.         esac

  3626.    done

  3627. }

  3628. 

  3629. cparser_flags(){

  3630.     for flag; do

  3631.         case $flag in

  3632.             -Wno-switch)             echo -Wno-switch-enum ;;

  3633.             -Wno-format-zero-length) ;;

  3634.             -Wdisabled-optimization) ;;

  3635.             -Wno-pointer-sign)       echo -Wno-other ;;

  3636.             *)                       echo $flag ;;

  3637.         esac

  3638.     done

  3639. }

  3640. 

  3641. msvc_common_flags(){

  3642.     for flag; do

  3643.         case $flag in

  3644.             # In addition to specifying certain flags under the compiler

  3645.             # specific filters, they must be specified here as well or else the

  3646.             # generic catch all at the bottom will print the original flag.

  3647.             -Wall)                ;;

  3648.             -std=c99)             ;;

  3649.             # Common flags

  3650.             -fomit-frame-pointer) ;;

  3651.             -g)                   echo -Z7 ;;

  3652.             -fno-math-errno)      ;;

  3653.             -fno-common)          ;;

  3654.             -fno-signed-zeros)    ;;

  3655.             -fPIC)                ;;

  3656.             -mthumb)              ;;

  3657.             -march=*)             ;;

  3658.             -lz)                  echo zlib.lib ;;

  3659.             -lavifil32)           echo vfw32.lib ;;

  3660.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3661.             -lx264)               echo libx264.lib ;;

  3662.             -l*)                  echo ${flag#-l}.lib ;;

  3663.             -LARGEADDRESSAWARE)   echo $flag ;;

  3664.             -L*)                  echo -libpath:${flag#-L} ;;

  3665.             *)                    echo $flag ;;

  3666.         esac

  3667.     done

  3668. }

  3669. 

  3670. msvc_flags(){

  3671.     msvc_common_flags "$@"

  3672.     for flag; do

  3673.         case $flag in

  3674.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3675.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3676.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3677.                                        -wd4307 \

  3678.                                        -wd4273 -wd4554 -wd4701 ;;

  3679.         esac

  3680.     done

  3681. }

  3682. 

  3683. icl_flags(){

  3684.     msvc_common_flags "$@"

  3685.     for flag; do

  3686.         case $flag in

  3687.             # Despite what Intel's documentation says -Wall, which is supported

  3688.             # on Windows, does enable remarks so disable them here.

  3689.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3690.             -std=c99)             echo -Qstd=c99 ;;

  3691.             -flto)                echo -ipo ;;

  3692.         esac

  3693.     done

  3694. }

  3695. 

  3696. icc_flags(){

  3697.     for flag; do

  3698.         case $flag in

  3699.             -flto)                echo -ipo ;;

  3700.             *)                    echo $flag ;;

  3701.         esac

  3702.     done

  3703. }

  3704. 

  3705. pgi_flags(){

  3706.     for flag; do

  3707.         case $flag in

  3708.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3709.             -fomit-frame-pointer) echo -Mnoframe ;;

  3710.             -g)                   echo -gopt ;;

  3711.             *)                    echo $flag ;;

  3712.         esac

  3713.     done

  3714. }

  3715. 

  3716. suncc_flags(){

  3717.     for flag; do

  3718.         case $flag in

  3719.             -march=*|-mcpu=*)

  3720.                 case "${flag#*=}" in

  3721.                     native)                   echo -xtarget=native       ;;

  3722.                     v9|niagara)               echo -xarch=sparc          ;;

  3723.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3724.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3725.                     i586|pentium)             echo -xchip=pentium        ;;

  3726.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3727.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3728.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3729.                     pentium4*)          echo -xtarget=pentium4           ;;

  3730.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3731.                     *-sse3)             echo -xarch=sse3                 ;;

  3732.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3733.                     bonnell)                   echo -xarch=ssse3         ;;

  3734.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3735.                     westmere)                  echo -xtarget=westmere    ;;

  3736.                     silvermont)                echo -xarch=sse4_2        ;;

  3737.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3738.                     core-avx*|ivybridge|haswell|broadwell)

  3739.                                                echo -xarch=avx           ;;

  3740.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3741.                     btver1)                    echo -xarch=amdsse4a      ;;

  3742.                     btver2|bdver*)             echo -xarch=avx           ;;

  3743.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3744.                     k8|opteron|athlon64|athlon-fx)

  3745.                                                echo -xarch=sse2a         ;;

  3746.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3747.                 esac

  3748.                 ;;

  3749.             -std=c99)             echo -xc99              ;;

  3750.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3751.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3752.             -W*,*)                echo $flag              ;;

  3753.             -f*-*|-W*|-mimpure-text)                      ;;

  3754.             -shared)              echo -G                 ;;

  3755.             *)                    echo $flag              ;;

  3756.         esac

  3757.     done

  3758. }

  3759. 

  3760. tms470_flags(){

  3761.     for flag; do

  3762.         case $flag in

  3763.             -march=*|-mcpu=*)

  3764.                 case "${flag#*=}" in

  3765.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3766.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3767.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3768.                     armv6*|arm11*)          echo -mv=6   ;;

  3769.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3770.                                             echo -mv=5e  ;;

  3771.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3772.                 esac

  3773.                 ;;

  3774.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3775.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3776.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3777.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3778.             -msoft-float)   echo --float_support=vfplib       ;;

  3779.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3780.             -g)             echo -g -mn                       ;;

  3781.             -pds=*)         echo $flag                        ;;

  3782.             -D*|-I*)        echo $flag                        ;;

  3783.             --gcc|--abi=*)  echo $flag                        ;;

  3784.             -me)            echo $flag                        ;;

  3785.         esac

  3786.     done

  3787. }

  3788. 

  3789. probe_cc(){

  3790.     pfx=$1

  3791.     _cc=$2

  3792.     first=$3

  3793. 

  3794.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3795.     unset _ld_o _ldflags _ld_lib _ld_path

  3796.     unset _depflags _DEPCMD _DEPFLAGS

  3797.     _flags_filter=echo

  3798. 

  3799.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3800.         true # no-op to avoid reading stdin in following checks

  3801.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3802.         _type=llvm_gcc

  3803.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3804.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3805.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3806.         _cflags_speed='-O3'

  3807.         _cflags_size='-Os'

  3808.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3809.         _type=gcc

  3810.         gcc_version=$($_cc --version | head -n1)

  3811.         gcc_basever=$($_cc -dumpversion)

  3812.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3813.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3814.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3815.         case $gcc_basever in

  3816.             2) ;;

  3817.             2.*) ;;

  3818.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3819.         esac

  3820.         if [ "$first" = true ]; then

  3821.             case $gcc_basever in

  3822.                 4.2*)

  3823.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3824.             esac

  3825.         fi

  3826.         _cflags_speed='-O3'

  3827.         _cflags_size='-Os'

  3828.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3829.         _type=icc

  3830.         _ident=$($_cc --version | head -n1)

  3831.         _depflags='-MMD'

  3832.         _cflags_speed='-O3'

  3833.         _cflags_size='-Os'

  3834.         _cflags_noopt='-O1'

  3835.         _flags_filter=icc_flags

  3836.     elif $_cc -v 2>&1 | grep -q xlc; then

  3837.         _type=xlc

  3838.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3839.         _cflags_speed='-O5'

  3840.         _cflags_size='-O5 -qcompact'

  3841.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3842.         _type=ccc

  3843.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3844.         _DEPFLAGS='-M'

  3845.         _cflags_speed='-fast'

  3846.         _cflags_size='-O1'

  3847.         _flags_filter=ccc_flags

  3848.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3849.         test -d "$sysroot" || die "No valid sysroot specified."

  3850.         _type=armcc

  3851.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3852.         armcc_conf="$PWD/armcc.conf"

  3853.         $_cc --arm_linux_configure                 \

  3854.              --arm_linux_config_file="$armcc_conf" \

  3855.              --configure_sysroot="$sysroot"        \

  3856.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3857.              die "Error creating armcc configuration file."

  3858.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3859.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3860.         as_default="${cross_prefix}gcc"

  3861.         _depflags='-MMD'

  3862.         _cflags_speed='-O3'

  3863.         _cflags_size='-Os'

  3864.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3865.         _type=tms470

  3866.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3867.         _flags='--gcc --abi=eabi -me'

  3868.         _cc_e='-ppl -fe=$@'

  3869.         _cc_o='-fe=$@'

  3870.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3871.         _cflags_speed='-O3 -mf=5'

  3872.         _cflags_size='-O3 -mf=2'

  3873.         _flags_filter=tms470_flags

  3874.     elif $_cc -v 2>&1 | grep -q clang; then

  3875.         _type=clang

  3876.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3877.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3878.         _cflags_speed='-O3'

  3879.         _cflags_size='-Os'

  3880.     elif $_cc -V 2>&1 | grep -q Sun; then

  3881.         _type=suncc

  3882.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3883.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3884.         _DEPFLAGS='-xM1 -xc99'

  3885.         _ldflags='-std=c99'

  3886.         _cflags_speed='-O5'

  3887.         _cflags_size='-O5 -xspace'

  3888.         _flags_filter=suncc_flags

  3889.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3890.         _type=pathscale

  3891.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3892.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3893.         _cflags_speed='-O2'

  3894.         _cflags_size='-Os'

  3895.         _flags_filter='filter_out -Wdisabled-optimization'

  3896.     elif $_cc -v 2>&1 | grep -q Open64; then

  3897.         _type=open64

  3898.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3899.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3900.         _cflags_speed='-O2'

  3901.         _cflags_size='-Os'

  3902.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3903.     elif $_cc -V 2>&1 | grep -q Portland; then

  3904.         _type=pgi

  3905.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3906.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  3907.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  3908.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  3909.         _cflags_noopt="-O"

  3910.         _flags_filter=pgi_flags

  3911.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  3912.         _type=armasm

  3913.         _ident=$($_cc | head -n1)

  3914.         # 4509: "This form of conditional instruction is deprecated"

  3915.         _flags="-nologo -ignore 4509"

  3916.         _flags_filter=armasm_flags

  3917.     elif $_cc 2>&1 | grep -q Intel; then

  3918.         _type=icl

  3919.         _ident=$($_cc 2>&1 | head -n1)

  3920.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  3921.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  3922.         # versions (tested) as well.

  3923.         _cflags_speed="-O2"

  3924.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  3925.         if $_cc 2>&1 | grep -q Linker; then

  3926.             _ld_o='-out:$@'

  3927.         else

  3928.             _ld_o='-Fe$@'

  3929.         fi

  3930.         _cc_o='-Fo$@'

  3931.         _cc_e='-P'

  3932.         _flags_filter=icl_flags

  3933.         _ld_lib='lib%.a'

  3934.         _ld_path='-libpath:'

  3935.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  3936.         _flags='-nologo -Qdiag-error:4044,10157'

  3937.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  3938.         # with MSVC which enables it by default.

  3939.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  3940.         disable stripping

  3941.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  3942.         _type=msvc

  3943.         _ident=$($_cc 2>&1 | head -n1)

  3944.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  3945.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  3946.         _cflags_speed="-O2"

  3947.         _cflags_size="-O1"

  3948.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  3949.             _ld_o='-out:$@'

  3950.         else

  3951.             _ld_o='-Fe$@'

  3952.         fi

  3953.         _cc_o='-Fo$@'

  3954.         _cc_e='-P -Fi$@'

  3955.         _flags_filter=msvc_flags

  3956.         _ld_lib='lib%.a'

  3957.         _ld_path='-libpath:'

  3958.         _flags='-nologo'

  3959.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'

  3960.         disable stripping

  3961.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  3962.         _type=cparser

  3963.         _ident=$($_cc --version | head -n1)

  3964.         _depflags='-MMD'

  3965.         _cflags_speed='-O4'

  3966.         _cflags_size='-O2'

  3967.         _flags_filter=cparser_flags

  3968.     fi

  3969. 

  3970.     eval ${pfx}_type=\$_type

  3971.     eval ${pfx}_ident=\$_ident

  3972. }

  3973. 

  3974. set_ccvars(){

  3975.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  3976.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  3977.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  3978. 

  3979.     if [ -n "$_depflags" ]; then

  3980.         eval ${1}_DEPFLAGS=\$_depflags

  3981.     else

  3982.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  3983.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  3984.         eval DEP${1}FLAGS=\$_flags

  3985.     fi

  3986. }

  3987. 

  3988. probe_cc cc "$cc" "true"

  3989. cflags_filter=$_flags_filter

  3990. cflags_speed=$_cflags_speed

  3991. cflags_size=$_cflags_size

  3992. cflags_noopt=$_cflags_noopt

  3993. add_cflags $_flags $_cflags

  3994. cc_ldflags=$_ldflags

  3995. set_ccvars CC

  3996. 

  3997. probe_cc hostcc "$host_cc"

  3998. host_cflags_filter=$_flags_filter

  3999. add_host_cflags  $_flags $_cflags

  4000. set_ccvars HOSTCC

  4001. 

  4002. test -n "$cc_type" && enable $cc_type ||

  4003.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4004. 

  4005. : ${as_default:=$cc}

  4006. : ${objcc_default:=$cc}

  4007. : ${dep_cc_default:=$cc}

  4008. : ${ld_default:=$cc}

  4009. : ${host_ld_default:=$host_cc}

  4010. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4011. 

  4012. probe_cc as "$as"

  4013. asflags_filter=$_flags_filter

  4014. add_asflags $_flags $_cflags

  4015. set_ccvars AS

  4016. 

  4017. probe_cc objcc "$objcc"

  4018. objcflags_filter=$_flags_filter

  4019. add_objcflags $_flags $_cflags

  4020. set_ccvars OBJC

  4021. 

  4022. probe_cc ld "$ld"

  4023. ldflags_filter=$_flags_filter

  4024. add_ldflags $_flags $_ldflags

  4025. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4026. LD_O=${_ld_o-$LD_O}

  4027. LD_LIB=${_ld_lib-$LD_LIB}

  4028. LD_PATH=${_ld_path-$LD_PATH}

  4029. 

  4030. probe_cc hostld "$host_ld"

  4031. host_ldflags_filter=$_flags_filter

  4032. add_host_ldflags $_flags $_ldflags

  4033. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4034. 

  4035. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4036.     probe_cc depcc "$dep_cc"

  4037.     CCDEP=${_DEPCMD:-$DEPCMD}

  4038.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4039.     DEPCCFLAGS=$_flags

  4040. fi

  4041. 

  4042. if $ar 2>&1 | grep -q Microsoft; then

  4043.     arflags="-nologo"

  4044.     ar_o='-out:$@'

  4045. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4046.     arflags="rq"

  4047.     ar_o='$@'

  4048. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4049.     arflags='-Xany -r -c'

  4050.     ar_o='$@'

  4051. elif $ar 2>&1 | grep -q "\[D\] "; then

  4052.     arflags="rcD"

  4053.     ar_o='$@'

  4054. else

  4055.     arflags="rc"

  4056.     ar_o='$@'

  4057. fi

  4058. 

  4059. add_cflags $extra_cflags

  4060. add_cxxflags $extra_cxxflags

  4061. add_objcflags $extra_objcflags

  4062. add_asflags $extra_cflags

  4063. 

  4064. if test -n "$sysroot"; then

  4065.     case "$cc_type" in

  4066.         gcc|llvm_gcc|clang)

  4067.             add_cppflags --sysroot="$sysroot"

  4068.             add_ldflags --sysroot="$sysroot"

  4069. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4070.             add_cppflags -isysroot "$sysroot"

  4071.             add_ldflags -isysroot "$sysroot"

  4072.         ;;

  4073.         tms470)

  4074.             add_cppflags -I"$sysinclude"

  4075.             add_ldflags  --sysroot="$sysroot"

  4076.         ;;

  4077.     esac

  4078. fi

  4079. 

  4080. if test "$cpu" = host; then

  4081.     enabled cross_compile &&

  4082.         die "--cpu=host makes no sense when cross-compiling."

  4083. 

  4084.     case "$cc_type" in

  4085.         gcc|llvm_gcc)

  4086.             check_native(){

  4087.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4088.                 sed -n "/cc1.*$1=/{

  4089.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4090.                             p

  4091.                             q

  4092.                         }" $TMPE

  4093.             }

  4094.             cpu=$(check_native -march || check_native -mcpu)

  4095.         ;;

  4096.         clang)

  4097.             check_native(){

  4098.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4099.                 sed -n "/cc1.*-target-cpu /{

  4100.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4101.                             p

  4102.                             q

  4103.                         }" $TMPE

  4104.             }

  4105.             cpu=$(check_native -march)

  4106.         ;;

  4107.     esac

  4108. 

  4109.     test "${cpu:-host}" = host &&

  4110.         die "--cpu=host not supported with compiler $cc"

  4111. fi

  4112. 

  4113. # Deal with common $arch aliases

  4114. case "$arch" in

  4115.     aarch64|arm64)

  4116.         arch="aarch64"

  4117.     ;;

  4118.     arm*|iPad*|iPhone*)

  4119.         arch="arm"

  4120.     ;;

  4121.     mips*|IP*)

  4122.         case "$arch" in

  4123.         *el)

  4124.             add_cppflags -EL

  4125.             add_ldflags -EL

  4126.         ;;

  4127.         *eb)

  4128.             add_cppflags -EB

  4129.             add_ldflags -EB

  4130.         ;;

  4131.         esac

  4132.         arch="mips"

  4133.     ;;

  4134.     parisc*|hppa*)

  4135.         arch="parisc"

  4136.     ;;

  4137.     "Power Macintosh"|ppc*|powerpc*)

  4138.         arch="ppc"

  4139.     ;;

  4140.     s390|s390x)

  4141.         arch="s390"

  4142.     ;;

  4143.     sh4|sh)

  4144.         arch="sh4"

  4145.     ;;

  4146.     sun4u|sparc*)

  4147.         arch="sparc"

  4148.     ;;

  4149.     tilegx|tile-gx)

  4150.         arch="tilegx"

  4151.     ;;

  4152.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4153.         arch="x86"

  4154.     ;;

  4155. esac

  4156. 

  4157. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4158. enable $arch

  4159. 

  4160. # Add processor-specific flags

  4161. if enabled aarch64; then

  4162. 

  4163.     case $cpu in

  4164.         armv*)

  4165.             cpuflags="-march=$cpu"

  4166.         ;;

  4167.         *)

  4168.             cpuflags="-mcpu=$cpu"

  4169.         ;;

  4170.     esac

  4171. 

  4172. elif enabled alpha; then

  4173. 

  4174.     cpuflags="-mcpu=$cpu"

  4175. 

  4176. elif enabled arm; then

  4177. 

  4178.     check_arm_arch() {

  4179.         check_cpp_condition stddef.h \

  4180.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4181.             $cpuflags

  4182.     }

  4183. 

  4184.     probe_arm_arch() {

  4185.         if   check_arm_arch 4;        then echo armv4;

  4186.         elif check_arm_arch 4T;       then echo armv4t;

  4187.         elif check_arm_arch 5;        then echo armv5;

  4188.         elif check_arm_arch 5E;       then echo armv5e;

  4189.         elif check_arm_arch 5T;       then echo armv5t;

  4190.         elif check_arm_arch 5TE;      then echo armv5te;

  4191.         elif check_arm_arch 5TEJ;     then echo armv5te;

  4192.         elif check_arm_arch 6;        then echo armv6;

  4193.         elif check_arm_arch 6J;       then echo armv6j;

  4194.         elif check_arm_arch 6K;       then echo armv6k;

  4195.         elif check_arm_arch 6Z;       then echo armv6z;

  4196.         elif check_arm_arch 6ZK;      then echo armv6zk;

  4197.         elif check_arm_arch 6T2;      then echo armv6t2;

  4198.         elif check_arm_arch 7;        then echo armv7;

  4199.         elif check_arm_arch 7A  7_A;  then echo armv7-a;

  4200.         elif check_arm_arch 7S;       then echo armv7-a;

  4201.         elif check_arm_arch 7R  7_R;  then echo armv7-r;

  4202.         elif check_arm_arch 7M  7_M;  then echo armv7-m;

  4203.         elif check_arm_arch 7EM 7E_M; then echo armv7-m;

  4204.         elif check_arm_arch 8A  8_A;  then echo armv8-a;

  4205.         fi

  4206.     }

  4207. 

  4208.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4209. 

  4210.     case $cpu in

  4211.         armv*)

  4212.             cpuflags="-march=$cpu"

  4213.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4214.         ;;

  4215.         *)

  4216.             cpuflags="-mcpu=$cpu"

  4217.             case $cpu in

  4218.                 cortex-a*)                               subarch=armv7a  ;;

  4219.                 cortex-r*)                               subarch=armv7r  ;;

  4220.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4221.                 arm11*)                                  subarch=armv6   ;;

  4222.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4223.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4224.                 *)                             subarch=$(probe_arm_arch) ;;

  4225.             esac

  4226.         ;;

  4227.     esac

  4228. 

  4229.     case "$subarch" in

  4230.         armv5t*)    enable fast_clz                ;;

  4231.         armv[6-8]*)

  4232.             enable fast_clz

  4233.             disabled fast_unaligned || enable fast_unaligned

  4234.             ;;

  4235.     esac

  4236. 

  4237. elif enabled avr32; then

  4238. 

  4239.     case $cpu in

  4240.         ap7[02]0[0-2])

  4241.             subarch="avr32_ap"

  4242.             cpuflags="-mpart=$cpu"

  4243.         ;;

  4244.         ap)

  4245.             subarch="avr32_ap"

  4246.             cpuflags="-march=$cpu"

  4247.         ;;

  4248.         uc3[ab]*)

  4249.             subarch="avr32_uc"

  4250.             cpuflags="-mcpu=$cpu"

  4251.         ;;

  4252.         uc)

  4253.             subarch="avr32_uc"

  4254.             cpuflags="-march=$cpu"

  4255.         ;;

  4256.     esac

  4257. 

  4258. elif enabled bfin; then

  4259. 

  4260.     cpuflags="-mcpu=$cpu"

  4261. 

  4262. elif enabled mips; then

  4263. 

  4264.     cpuflags="-march=$cpu"

  4265. 

  4266.     if [ "$cpu" != "generic" ]; then

  4267.         disable mips32r2

  4268.         disable mips32r5

  4269.         disable mips64r2

  4270.         disable mips32r6

  4271.         disable mips64r6

  4272.         disable loongson2

  4273.         disable loongson3

  4274. 

  4275.         case $cpu in

  4276.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4277.                 enable mips32r2

  4278.                 disable msa

  4279.             ;;

  4280.             p5600|i6400)

  4281.                 disable mipsdsp

  4282.                 disable mipsdspr2

  4283.             ;;

  4284.             loongson*)

  4285.                 enable loongson2

  4286.                 enable loongson3

  4287.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4288.                 enable simd_align_16

  4289.                 enable fast_64bit

  4290.                 enable fast_clz

  4291.                 enable fast_cmov

  4292.                 enable fast_unaligned

  4293.                 disable aligned_stack

  4294.                 case $cpu in

  4295.                     loongson3*)

  4296.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4297.                     ;;

  4298.                     loongson2e)

  4299.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4300.                     ;;

  4301.                     loongson2f)

  4302.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4303.                     ;;

  4304.                 esac

  4305.             ;;

  4306.             *)

  4307.                 # Unknown CPU. Disable everything.

  4308.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4309.                 disable mipsfpu

  4310.                 disable mipsdsp

  4311.                 disable mipsdspr2

  4312.                 disable msa

  4313.                 disable mmi

  4314.             ;;

  4315.         esac

  4316. 

  4317.         case $cpu in

  4318.             24kc)

  4319.                 disable mipsfpu

  4320.                 disable mipsdsp

  4321.                 disable mipsdspr2

  4322.             ;;

  4323.             24kf*)

  4324.                 disable mipsdsp

  4325.                 disable mipsdspr2

  4326.             ;;

  4327.             24kec|34kc|1004kc)

  4328.                 disable mipsfpu

  4329.                 disable mipsdspr2

  4330.             ;;

  4331.             24kef*|34kf*|1004kf*)

  4332.                 disable mipsdspr2

  4333.             ;;

  4334.             74kc)

  4335.                 disable mipsfpu

  4336.             ;;

  4337.             p5600)

  4338.                 enable mips32r5

  4339.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4340.             ;;

  4341.             i6400)

  4342.                 enable mips64r6

  4343.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4344.             ;;

  4345.         esac

  4346.     else

  4347.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4348.         warn 'generic cpu selected'

  4349.     fi

  4350. 

  4351. elif enabled ppc; then

  4352. 

  4353.     disable ldbrx

  4354. 

  4355.     case $(tolower $cpu) in

  4356.         601|ppc601|powerpc601)

  4357.             cpuflags="-mcpu=601"

  4358.             disable altivec

  4359.         ;;

  4360.         603*|ppc603*|powerpc603*)

  4361.             cpuflags="-mcpu=603"

  4362.             disable altivec

  4363.         ;;

  4364.         604*|ppc604*|powerpc604*)

  4365.             cpuflags="-mcpu=604"

  4366.             disable altivec

  4367.         ;;

  4368.         g3|75*|ppc75*|powerpc75*)

  4369.             cpuflags="-mcpu=750"

  4370.             disable altivec

  4371.         ;;

  4372.         g4|745*|ppc745*|powerpc745*)

  4373.             cpuflags="-mcpu=7450"

  4374.             disable vsx

  4375.         ;;

  4376.         74*|ppc74*|powerpc74*)

  4377.             cpuflags="-mcpu=7400"

  4378.             disable vsx

  4379.         ;;

  4380.         g5|970|ppc970|powerpc970)

  4381.             cpuflags="-mcpu=970"

  4382.             disable vsx

  4383.         ;;

  4384.         power[3-6]*)

  4385.             cpuflags="-mcpu=$cpu"

  4386.             disable vsx

  4387.         ;;

  4388.         power[7-8]*)

  4389.             cpuflags="-mcpu=$cpu"

  4390.         ;;

  4391.         cell)

  4392.             cpuflags="-mcpu=cell"

  4393.             enable ldbrx

  4394.             disable vsx

  4395.         ;;

  4396.         e500mc)

  4397.             cpuflags="-mcpu=e500mc"

  4398.             disable altivec

  4399.         ;;

  4400.         e500v2)

  4401.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4402.             disable altivec

  4403.             disable dcbzl

  4404.         ;;

  4405.         e500)

  4406.             cpuflags="-mcpu=8540 -mhard-float"

  4407.             disable altivec

  4408.             disable dcbzl

  4409.         ;;

  4410.     esac

  4411. 

  4412. elif enabled sparc; then

  4413. 

  4414.     case $cpu in

  4415.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4416.             cpuflags="-mcpu=$cpu"

  4417.         ;;

  4418.         ultrasparc*|niagara[234])

  4419.             cpuflags="-mcpu=$cpu"

  4420.         ;;

  4421.     esac

  4422. 

  4423. elif enabled x86; then

  4424. 

  4425.     case $cpu in

  4426.         i[345]86|pentium)

  4427.             cpuflags="-march=$cpu"

  4428.             disable i686

  4429.             disable mmx

  4430.         ;;

  4431.         # targets that do NOT support nopl and conditional mov (cmov)

  4432.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4433.             cpuflags="-march=$cpu"

  4434.             disable i686

  4435.         ;;

  4436.         # targets that do support nopl and conditional mov (cmov)

  4437.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4438.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)

  4439.             cpuflags="-march=$cpu"

  4440.             enable i686

  4441.             enable fast_cmov

  4442.         ;;

  4443.         # targets that do support conditional mov but on which it's slow

  4444.         pentium4|pentium4m|prescott|nocona)

  4445.             cpuflags="-march=$cpu"

  4446.             enable i686

  4447.             disable fast_cmov

  4448.         ;;

  4449.     esac

  4450. 

  4451. fi

  4452. 

  4453. if [ "$cpu" != generic ]; then

  4454.     add_cflags  $cpuflags

  4455.     add_asflags $cpuflags

  4456.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4457. fi

  4458. 

  4459. # compiler sanity check

  4460. check_exec <<EOF

  4461. int main(void){ return 0; }

  4462. EOF

  4463. if test "$?" != 0; then

  4464.     echo "$cc is unable to create an executable file."

  4465.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4466.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4467.         echo "Only do this if you know what cross compiling means."

  4468.     fi

  4469.     die "C compiler test failed."

  4470. fi

  4471. 

  4472. add_cppflags -D_ISOC99_SOURCE

  4473. add_cxxflags -D__STDC_CONSTANT_MACROS

  4474. check_cflags -std=c99

  4475. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4476. #include <stdlib.h>

  4477. EOF

  4478. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4479. #include <stdlib.h>

  4480. EOF

  4481. 

  4482. add_host_cppflags -D_ISOC99_SOURCE

  4483. check_host_cflags -std=c99

  4484. check_host_cflags -Wall

  4485. check_host_cflags -O3

  4486. 

  4487. check_64bit(){

  4488.     arch32=$1

  4489.     arch64=$2

  4490.     expr=$3

  4491.     check_code cc "" "int test[2*($expr) - 1]" &&

  4492.         subarch=$arch64 || subarch=$arch32

  4493. }

  4494. 

  4495. case "$arch" in

  4496.     aarch64|alpha|ia64)

  4497.         spic=$shared

  4498.     ;;

  4499.     mips)

  4500.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4501.         spic=$shared

  4502.     ;;

  4503.     parisc)

  4504.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4505.         spic=$shared

  4506.     ;;

  4507.     ppc)

  4508.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4509.         spic=$shared

  4510.     ;;

  4511.     s390)

  4512.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4513.         spic=$shared

  4514.     ;;

  4515.     sparc)

  4516.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4517.         spic=$shared

  4518.     ;;

  4519.     x86)

  4520.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4521.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4522.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4523.             subarch=x86_64

  4524.         if test "$subarch" = "x86_64"; then

  4525.             spic=$shared

  4526.         fi

  4527.     ;;

  4528.     ppc)

  4529.         check_cc <<EOF && subarch="ppc64"

  4530.         int test[(int)sizeof(char*) - 7];

  4531. EOF

  4532.     ;;

  4533. esac

  4534. 

  4535. enable $subarch

  4536. enabled spic && enable_weak pic

  4537. 

  4538. # OS specific

  4539. case $target_os in

  4540.     aix)

  4541.         SHFLAGS=-shared

  4542.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4543.         enabled shared && add_ldflags -Wl,-brtl

  4544.         ;;

  4545.     android)

  4546.         disable symver

  4547.         enable section_data_rel_ro

  4548.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4549.         SLIB_INSTALL_LINKS=

  4550.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4551.         ;;

  4552.     haiku)

  4553.         prefix_default="/boot/common"

  4554.         network_extralibs="-lnetwork"

  4555.         host_libs=

  4556.         ;;

  4557.     sunos)

  4558.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4559.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4560.         network_extralibs="-lsocket -lnsl"

  4561.         add_cppflags -D__EXTENSIONS__

  4562.         # When using suncc to build, the Solaris linker will mark

  4563.         # an executable with each instruction set encountered by

  4564.         # the Solaris assembler.  As our libraries contain their own

  4565.         # guards for processor-specific code, instead suppress

  4566.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4567.         enabled_all suncc x86 &&

  4568.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4569.             add_ldflags -Wl,-M,mapfile

  4570.         nm_default='nm -P -g'

  4571.         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'

  4572.         ;;

  4573.     netbsd)

  4574.         disable symver

  4575.         oss_indev_extralibs="-lossaudio"

  4576.         oss_outdev_extralibs="-lossaudio"

  4577.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4578.         ;;

  4579.     openbsd|bitrig)

  4580.         disable symver

  4581.         SHFLAGS='-shared'

  4582.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4583.         SLIB_INSTALL_LINKS=

  4584.         oss_indev_extralibs="-lossaudio"

  4585.         oss_outdev_extralibs="-lossaudio"

  4586.         ;;

  4587.     dragonfly)

  4588.         disable symver

  4589.         ;;

  4590.     freebsd)

  4591.         ;;

  4592.     bsd/os)

  4593.         add_extralibs -lpoll -lgnugetopt

  4594.         strip="strip -d"

  4595.         ;;

  4596.     darwin)

  4597.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4598.         install_name_dir_default='$(SHLIBDIR)'

  4599.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4600.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4601.         strip="${strip} -x"

  4602.         add_ldflags -Wl,-dynamic,-search_paths_first

  4603.         SLIBSUF=".dylib"

  4604.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4605.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4606.         objformat="macho"

  4607.         enabled x86_64 && objformat="macho64"

  4608.         enabled_any pic shared x86_64 ||

  4609.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4610.         check_header dispatch/dispatch.h

  4611.         ;;

  4612.     msys*)

  4613.         die "Native MSYS builds are discouraged, please use the MINGW environment.";

  4614.         ;;

  4615.     mingw32*|mingw64*)

  4616.         if test $target_os = "mingw32ce"; then

  4617.             disable network

  4618.         else

  4619.             target_os=mingw32

  4620.         fi

  4621.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4622.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4623.         LIBTARGET=i386

  4624.         if enabled x86_64; then

  4625.             LIBTARGET="i386:x86-64"

  4626.         elif enabled arm; then

  4627.             LIBTARGET=arm-wince

  4628.         fi

  4629.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4630.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4631.         shlibdir_default="$bindir_default"

  4632.         SLIBPREF=""

  4633.         SLIBSUF=".dll"

  4634.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4635.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4636.         dlltool="${cross_prefix}dlltool"

  4637.         if check_cmd lib.exe -list; then

  4638.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4639.             if enabled x86_64; then

  4640.                 LIBTARGET=x64

  4641.             fi

  4642.         elif check_cmd $dlltool --version; then

  4643.             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)'

  4644.         fi

  4645.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4646.         SLIB_INSTALL_LINKS=

  4647.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4648.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4649.         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'

  4650.         objformat="win32"

  4651.         ranlib=:

  4652.         enable dos_paths

  4653.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4654.         # Lets work around some stupidity in binutils.

  4655.         # ld will strip relocations from executables even though we need them

  4656.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4657.         # however ld then forgets what the entry point should be (oops) so we

  4658.         # have to manually (re)set it.

  4659.         if enabled x86_32; then

  4660.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4661.         elif enabled x86_64; then

  4662.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4663.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4664.             # Set image base >4GB for extra entropy with HEASLR

  4665.             add_ldexeflags -Wl,--image-base,0x140000000

  4666.             append SHFLAGS -Wl,--image-base,0x180000000

  4667.         fi

  4668.         ;;

  4669.     win32|win64)

  4670.         disable symver

  4671.         if enabled shared; then

  4672.             # Link to the import library instead of the normal static library

  4673.             # for shared libs.

  4674.             LD_LIB='%.lib'

  4675.             # Cannot build both shared and static libs with MSVC or icl.

  4676.             disable static

  4677.         fi

  4678.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4679.         shlibdir_default="$bindir_default"

  4680.         SLIBPREF=""

  4681.         SLIBSUF=".dll"

  4682.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4683.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4684.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4685.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4686.         SLIB_INSTALL_LINKS=

  4687.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4688.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4689.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4690.         objformat="win32"

  4691.         ranlib=:

  4692.         enable dos_paths

  4693.         ;;

  4694.     cygwin*)

  4695.         target_os=cygwin

  4696.         shlibdir_default="$bindir_default"

  4697.         SLIBPREF="cyg"

  4698.         SLIBSUF=".dll"

  4699.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4700.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4701.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4702.         SLIB_INSTALL_LINKS=

  4703.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4704.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4705.         objformat="win32"

  4706.         enable dos_paths

  4707.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4708.         ;;

  4709.     *-dos|freedos|opendos)

  4710.         network_extralibs="-lsocket"

  4711.         objformat="coff"

  4712.         enable dos_paths

  4713.         add_cppflags -U__STRICT_ANSI__

  4714.         ;;

  4715.     linux)

  4716.         enable dv1394

  4717.         enable section_data_rel_ro

  4718.         ;;

  4719.     irix*)

  4720.         target_os=irix

  4721.         ranlib="echo ignoring ranlib"

  4722.         ;;

  4723.     os/2*)

  4724.         strip="lxlite -CS"

  4725.         objformat="aout"

  4726.         add_cppflags -D_GNU_SOURCE

  4727.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4728.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4729.         LIBSUF="_s.a"

  4730.         SLIBPREF=""

  4731.         SLIBSUF=".dll"

  4732.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4733.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4734.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  4735.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  4736.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  4737.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  4738.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  4739.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  4740.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  4741.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4742.         SLIB_INSTALL_LINKS=

  4743.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  4744.         enable dos_paths

  4745.         enable_weak os2threads

  4746.         ;;

  4747.     gnu/kfreebsd)

  4748.         add_cppflags -D_BSD_SOURCE

  4749.         ;;

  4750.     gnu)

  4751.         ;;

  4752.     qnx)

  4753.         add_cppflags -D_QNX_SOURCE

  4754.         network_extralibs="-lsocket"

  4755.         ;;

  4756.     symbian)

  4757.         SLIBSUF=".dll"

  4758.         enable dos_paths

  4759.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4760.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4761.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4762.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4763.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4764.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4765.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4766.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4767.         ;;

  4768.     osf1)

  4769.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4770.         ;;

  4771.     minix)

  4772.         ;;

  4773.     plan9)

  4774.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4775.                      -D_REENTRANT_SOURCE        \

  4776.                      -D_RESEARCH_SOURCE         \

  4777.                      -DFD_SETSIZE=96            \

  4778.                      -DHAVE_SOCK_OPTS

  4779.         add_compat strtod.o strtod=avpriv_strtod

  4780.         network_extralibs='-lbsd'

  4781.         exeobjs=compat/plan9/main.o

  4782.         disable ffserver

  4783.         cp_f='cp'

  4784.         ;;

  4785.     none)

  4786.         ;;

  4787.     *)

  4788.         die "Unknown OS '$target_os'."

  4789.         ;;

  4790. esac

  4791. 

  4792. # test if creating links works

  4793. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  4794. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  4795. mkdir "$link_dest"

  4796. $ln_s "$link_dest" "$link_name"

  4797. touch "$link_dest/test_file"

  4798. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  4799.     # create link to source path

  4800.     [ -e src ] && rm src

  4801.     $ln_s "$source_path" src

  4802.     source_link=src

  4803. else

  4804.     # creating directory links doesn't work

  4805.     # fall back to using the full source path

  4806.     source_link="$source_path"

  4807. fi

  4808. # cleanup

  4809. rm -r "$link_dest"

  4810. rm -r "$link_name"

  4811. 

  4812. # determine libc flavour

  4813. 

  4814. probe_libc(){

  4815.     pfx=$1

  4816.     pfx_no_=${pfx%_}

  4817.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4818.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4819.         eval ${pfx}libc_type=uclibc

  4820.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4821.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4822.         eval ${pfx}libc_type=glibc

  4823.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4824.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4825.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4826.         eval ${pfx}libc_type=newlib

  4827.         add_${pfx}cppflags -U__STRICT_ANSI__

  4828.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4829.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4830.         eval ${pfx}libc_type=mingw64

  4831.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4832.             add_compat msvcrt/snprintf.o

  4833.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4834.         fi

  4835.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4836.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4837.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4838.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4839.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4840.         eval ${pfx}libc_type=mingw32

  4841.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4842.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4843.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4844.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4845.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4846.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4847.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4848.         eval ${pfx}libc_type=msvcrt

  4849.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4850.             if [ "$pfx" = host_ ]; then

  4851.                 add_host_cppflags -Dsnprintf=_snprintf

  4852.             else

  4853.                 add_compat strtod.o strtod=avpriv_strtod

  4854.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4855.                                              _snprintf=avpriv_snprintf  \

  4856.                                              vsnprintf=avpriv_vsnprintf

  4857.             fi

  4858.         fi

  4859.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4860.         # 0x601 by default unless something else is set by the user.

  4861.         # This can easily lead to us detecting functions only present

  4862.         # in such new versions and producing binaries requiring windows 7.0.

  4863.         # Therefore explicitly set the default to XP unless the user has

  4864.         # set something else on the command line.

  4865.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4866.         # family. For these cases, configure is free to use any functions

  4867.         # found in the SDK headers by default. (Alternatively, we could force

  4868.         # _WIN32_WINNT to 0x0602 in that case.)

  4869.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4870.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4871. #ifdef WINAPI_FAMILY

  4872. #include <winapifamily.h>

  4873. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4874. #error not desktop

  4875. #endif

  4876. #endif

  4877. EOF

  4878.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4879.         eval ${pfx}libc_type=klibc

  4880.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4881.         eval ${pfx}libc_type=bionic

  4882.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4883.         eval ${pfx}libc_type=solaris

  4884.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4885.     fi

  4886.     check_${pfx}cc <<EOF

  4887. #include <time.h>

  4888. void *v = localtime_r;

  4889. EOF

  4890. 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

  4891. #include <time.h>

  4892. void *v = localtime_r;

  4893. EOF

  4894. 

  4895. }

  4896. 

  4897. probe_libc

  4898. test -n "$libc_type" && enable libc_$libc_type

  4899. probe_libc host_

  4900. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  4901. 

  4902. case $libc_type in

  4903.     bionic)

  4904.         add_compat strtod.o strtod=avpriv_strtod

  4905.         ;;

  4906. esac

  4907. 

  4908. # hacks for compiler/libc/os combinations

  4909. 

  4910. if enabled_all tms470 libc_glibc; then

  4911.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  4912.     add_cppflags -D__USER_LABEL_PREFIX__=

  4913.     add_cppflags -D__builtin_memset=memset

  4914.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  4915.     add_cflags   -pds=48    # incompatible redefinition of macro

  4916. fi

  4917. 

  4918. if enabled_all ccc libc_glibc; then

  4919.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  4920. fi

  4921. 

  4922. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  4923.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  4924. 

  4925. esc(){

  4926.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  4927. }

  4928. 

  4929. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  4930. 

  4931. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  4932. 

  4933. set_default libdir

  4934. : ${shlibdir_default:="$libdir"}

  4935. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  4936. 

  4937. set_default $PATHS_LIST

  4938. set_default nm

  4939. 

  4940. # we need to build at least one lib type

  4941. if ! enabled_any static shared; then

  4942.     cat <<EOF

  4943. At least one library type must be built.

  4944. Specify --enable-static to build the static libraries or --enable-shared to

  4945. build the shared libraries as well. To only build the shared libraries specify

  4946. --disable-static in addition to --enable-shared.

  4947. EOF

  4948.     exit 1;

  4949. fi

  4950. 

  4951. die_license_disabled() {

  4952.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  4953. }

  4954. 

  4955. die_license_disabled_gpl() {

  4956.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  4957. }

  4958. 

  4959. die_license_disabled gpl frei0r

  4960. die_license_disabled gpl libcdio

  4961. die_license_disabled gpl librubberband

  4962. die_license_disabled gpl libsmbclient

  4963. die_license_disabled gpl libutvideo

  4964. die_license_disabled gpl libvidstab

  4965. die_license_disabled gpl libx264

  4966. die_license_disabled gpl libx265

  4967. die_license_disabled gpl libxavs

  4968. die_license_disabled gpl libxvid

  4969. die_license_disabled gpl x11grab

  4970. 

  4971. die_license_disabled nonfree cuda

  4972. die_license_disabled nonfree libfaac

  4973. die_license_disabled nonfree libnpp

  4974. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  4975. enabled gpl && die_license_disabled_gpl nonfree openssl

  4976. 

  4977. die_license_disabled version3 gmp

  4978. die_license_disabled version3 libopencore_amrnb

  4979. die_license_disabled version3 libopencore_amrwb

  4980. die_license_disabled version3 libsmbclient

  4981. die_license_disabled version3 libvo_amrwbenc

  4982. 

  4983. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  4984. 

  4985. disabled optimizations || check_cflags -fomit-frame-pointer

  4986. 

  4987. enable_weak_pic() {

  4988.     disabled pic && return

  4989.     enable pic

  4990.     add_cppflags -DPIC

  4991.     case "$target_os" in

  4992.     mingw*|cygwin*)

  4993.         ;;

  4994.     *)

  4995.         add_cflags -fPIC

  4996.         ;;

  4997.     esac

  4998.     add_asflags  -fPIC

  4999. }

  5000. 

  5001. enabled pic && enable_weak_pic

  5002. 

  5003. check_cc <<EOF || die "Symbol mangling check failed."

  5004. int ff_extern;

  5005. EOF

  5006. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5007. extern_prefix=${sym%%ff_extern*}

  5008. 

  5009. check_cc <<EOF && enable_weak inline_asm

  5010. void foo(void) { __asm__ volatile ("" ::); }

  5011. EOF

  5012. 

  5013. _restrict=

  5014. for restrict_keyword in restrict __restrict__ __restrict; do

  5015.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5016. void foo(char * $restrict_keyword p);

  5017. EOF

  5018. done

  5019. 

  5020. check_cc <<EOF && enable pragma_deprecated

  5021. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5022. EOF

  5023. 

  5024. check_cc <<EOF && enable attribute_packed

  5025. struct { int x; } __attribute__((packed)) x;

  5026. EOF

  5027. 

  5028. check_cc <<EOF && enable attribute_may_alias

  5029. union { int x; } __attribute__((may_alias)) x;

  5030. EOF

  5031. 

  5032. check_cc <<EOF || die "endian test failed"

  5033. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5034. EOF

  5035. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5036. 

  5037. if ! enabled ppc64 || enabled bigendian; then

  5038.     disable vsx

  5039. fi

  5040. 

  5041. check_gas() {

  5042.     log "check_gas using '$as' as AS"

  5043.     # :vararg is used on aarch64, arm and ppc altivec

  5044.     check_as <<EOF || return 1

  5045. .macro m n, y:vararg=0

  5046. \n: .int \y

  5047. .endm

  5048. m x

  5049. EOF

  5050.     # .altmacro is only used in arm asm

  5051.     ! enabled arm || check_as <<EOF || return 1

  5052. .altmacro

  5053. EOF

  5054.     enable gnu_as

  5055.     return 0

  5056. }

  5057. 

  5058. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5059.     nogas=:

  5060.     enabled_any arm aarch64 && nogas=die

  5061.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5062.     as_noop=-v

  5063. 

  5064.     case $as_type in

  5065.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5066.         gcc)  gaspp_as_type=gas ;;

  5067.         *)    gaspp_as_type=$as_type ;;

  5068.     esac

  5069. 

  5070.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5071. 

  5072.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5073.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5074.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5075. 

  5076.     if ! check_gas ; then

  5077.         as=${gas:=$as}

  5078.         check_gas || \

  5079.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5080.     fi

  5081. 

  5082.     check_as <<EOF && enable as_func

  5083. .func test

  5084. .endfunc

  5085. EOF

  5086. fi

  5087. 

  5088. check_inline_asm inline_asm_labels '"1:\n"'

  5089. 

  5090. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5091. 

  5092. if enabled aarch64; then

  5093.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5094.     # internal assembler in clang 3.3 does not support this instruction

  5095.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5096.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5097. 

  5098.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5099. 

  5100. elif enabled alpha; then

  5101. 

  5102.     check_cflags -mieee

  5103. 

  5104. elif enabled arm; then

  5105. 

  5106.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5107. 

  5108.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5109. float func(float a, float b){ return a+b; }

  5110. EOF

  5111. 

  5112.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5113. 

  5114.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5115.         enable vfp_args

  5116.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5117.         enable vfp_args

  5118.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5119.         case "${cross_prefix:-$cc}" in

  5120.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5121.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5122. __asm__ (".eabi_attribute 28, 1");

  5123. int main(void) { return 0; }

  5124. EOF

  5125.         esac

  5126.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5127.     fi

  5128. 

  5129.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5130.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5131.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5132.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5133.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5134.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5135.     enabled setend  && check_insn setend  'setend be'

  5136. 

  5137.     [ $target_os = linux ] || [ $target_os = android ] ||

  5138.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5139.             $ARCH_EXT_LIST_ARM

  5140. 

  5141.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5142. 

  5143.     check_as <<EOF && enable as_dn_directive

  5144. ra .dn d0.i16

  5145. .unreq ra

  5146. EOF

  5147. 

  5148.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5149.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  5150. .object_arch armv4

  5151. EOF

  5152. 

  5153.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5154. 

  5155. elif enabled mips; then

  5156. 

  5157.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5158.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5159.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5160. 

  5161.     # Enable minimum ISA based on selected options

  5162.     if enabled mips64; then

  5163.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5164.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5165.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5166.     else

  5167.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5168.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5169.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5170.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5171.     fi

  5172. 

  5173.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5174.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5175.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5176.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5177.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5178. 

  5179. elif enabled parisc; then

  5180. 

  5181.     if enabled gcc; then

  5182.         case $($cc -dumpversion) in

  5183.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5184.         esac

  5185.     fi

  5186. 

  5187. elif enabled ppc; then

  5188. 

  5189.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5190. 

  5191.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5192.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5193.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5194.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5195. 

  5196.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5197.     if enabled altivec; then

  5198.         check_cflags -maltivec -mabi=altivec &&

  5199.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5200.         check_cflags -faltivec

  5201. 

  5202.         # check if our compiler supports Motorola AltiVec C API

  5203.         check_cc <<EOF || disable altivec

  5204. $inc_altivec_h

  5205. int main(void) {

  5206.     vector signed int v1 = (vector signed int) { 0 };

  5207.     vector signed int v2 = (vector signed int) { 1 };

  5208.     v1 = vec_add(v1, v2);

  5209.     return 0;

  5210. }

  5211. EOF

  5212. 

  5213.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5214.     fi

  5215. 

  5216.     if enabled vsx; then

  5217.         check_cflags -mvsx &&

  5218.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5219.     fi

  5220. 

  5221.     if enabled power8; then

  5222.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5223.     fi

  5224. 

  5225. elif enabled x86; then

  5226. 

  5227.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5228.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5229. 

  5230.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5231. 

  5232.     # check whether EBP is available on x86

  5233.     # As 'i' is stored on the stack, this program will crash

  5234.     # if the base pointer is used to access it because the

  5235.     # base pointer is cleared in the inline assembly code.

  5236.     check_exec_crash <<EOF && enable ebp_available

  5237. volatile int i=0;

  5238. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5239. return i;

  5240. EOF

  5241. 

  5242.     # check whether EBX is available on x86

  5243.     check_inline_asm ebx_available '""::"b"(0)' &&

  5244.         check_inline_asm ebx_available '"":::"%ebx"'

  5245. 

  5246.     # check whether xmm clobbers are supported

  5247.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5248. 

  5249.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5250.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5251. 

  5252.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5253.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5254.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5255. 

  5256.     if ! disabled_any asm mmx yasm; then

  5257.         if check_cmd $yasmexe --version; then

  5258.             enabled x86_64 && yasm_extra="-m amd64"

  5259.             yasm_debug="-g dwarf2"

  5260.         elif check_cmd nasm -v; then

  5261.             yasmexe=nasm

  5262.             yasm_debug="-g -F dwarf"

  5263.             if enabled x86_64; then

  5264.                 case "$objformat" in

  5265.                     elf)   objformat=elf64 ;;

  5266.                     win32) objformat=win64 ;;

  5267.                 esac

  5268.             fi

  5269.         fi

  5270. 

  5271.         YASMFLAGS="-f $objformat $yasm_extra"

  5272.         enabled pic               && append YASMFLAGS "-DPIC"

  5273.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5274.         case "$objformat" in

  5275.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5276.         esac

  5277. 

  5278.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5279.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5280.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5281.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5282.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5283.         check_yasm "CPU amdnop" || disable cpunop

  5284.     fi

  5285. 

  5286.     case "$cpu" in

  5287.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5288.             disable fast_clz

  5289.         ;;

  5290.     esac

  5291. 

  5292. fi

  5293. 

  5294. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5295. 

  5296. check_ldflags -Wl,--as-needed

  5297. check_ldflags -Wl,-z,noexecstack

  5298. 

  5299. if check_func dlopen; then

  5300.     ldl=

  5301. elif check_func dlopen -ldl; then

  5302.     ldl=-ldl

  5303. fi

  5304. 

  5305. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5306. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5307. frei0r_filter_extralibs='$ldl'

  5308. frei0r_src_filter_extralibs='$ldl'

  5309. ladspa_filter_extralibs='$ldl'

  5310. nvenc_encoder_extralibs='$ldl'

  5311. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5312. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5313. 

  5314. if ! disabled network; then

  5315.     check_func getaddrinfo $network_extralibs

  5316.     check_func inet_aton $network_extralibs

  5317. 

  5318.     check_type netdb.h "struct addrinfo"

  5319.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5320.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5321.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5322.     check_type poll.h "struct pollfd"

  5323.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5324.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5325.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5326.     check_type netinet/in.h "struct sockaddr_in6"

  5327.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5328.     check_type "sys/types.h sys/socket.h" socklen_t

  5329. 

  5330.     # Prefer arpa/inet.h over winsock2

  5331.     if check_header arpa/inet.h ; then

  5332.         check_func closesocket

  5333.     elif check_header winsock2.h ; then

  5334.         check_func_headers winsock2.h closesocket -lws2 &&

  5335.             network_extralibs="-lws2" ||

  5336.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5337.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5338.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5339. 

  5340.         check_type ws2tcpip.h socklen_t

  5341.         check_type ws2tcpip.h "struct addrinfo"

  5342.         check_type ws2tcpip.h "struct group_source_req"

  5343.         check_type ws2tcpip.h "struct ip_mreq_source"

  5344.         check_type ws2tcpip.h "struct ipv6_mreq"

  5345.         check_type winsock2.h "struct pollfd"

  5346.         check_struct winsock2.h "struct sockaddr" sa_len

  5347.         check_type ws2tcpip.h "struct sockaddr_in6"

  5348.         check_type ws2tcpip.h "struct sockaddr_storage"

  5349.     else

  5350.         disable network

  5351.     fi

  5352. fi

  5353. 

  5354. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5355. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5356. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5357. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5358. check_builtin sarestart signal.h "SA_RESTART"

  5359. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5360. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5361. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5362. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5363. 

  5364. case "$custom_allocator" in

  5365.     jemalloc)

  5366.         # jemalloc by default does not use a prefix

  5367.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5368.     ;;

  5369.     tcmalloc)

  5370.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5371.         malloc_prefix=tc_

  5372.     ;;

  5373. esac

  5374. 

  5375. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5376. check_func  ${malloc_prefix}memalign            && enable memalign

  5377. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5378. 

  5379. check_func  access

  5380. check_func  arc4random

  5381. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5382. check_func  fcntl

  5383. check_func  fork

  5384. check_func  gethrtime

  5385. check_func  getopt

  5386. check_func  getrusage

  5387. check_func  gettimeofday

  5388. check_func  isatty

  5389. check_func  mach_absolute_time

  5390. check_func  mkstemp

  5391. check_func  mmap

  5392. check_func  mprotect

  5393. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5394. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5395. check_func  sched_getaffinity

  5396. check_func  setrlimit

  5397. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5398. check_func  strerror_r

  5399. check_func  sysconf

  5400. check_func  sysctl

  5401. check_func  usleep

  5402. 

  5403. check_func_headers conio.h kbhit

  5404. check_func_headers io.h setmode

  5405. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5406. check_func_headers stdlib.h getenv

  5407. check_func_headers sys/stat.h lstat

  5408. 

  5409. check_func_headers windows.h CoTaskMemFree -lole32

  5410. check_func_headers windows.h GetProcessAffinityMask

  5411. check_func_headers windows.h GetProcessTimes

  5412. check_func_headers windows.h GetSystemTimeAsFileTime

  5413. check_func_headers windows.h MapViewOfFile

  5414. check_func_headers windows.h PeekNamedPipe

  5415. check_func_headers windows.h SetConsoleTextAttribute

  5416. check_func_headers windows.h SetConsoleCtrlHandler

  5417. check_func_headers windows.h Sleep

  5418. check_func_headers windows.h VirtualAlloc

  5419. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5420. check_func_headers glob.h glob

  5421. enabled xlib &&

  5422.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5423. 

  5424. check_header AudioToolbox/AudioToolbox.h

  5425. check_header direct.h

  5426. check_header dirent.h

  5427. check_header dlfcn.h

  5428. check_header d3d11.h

  5429. check_header dxva.h

  5430. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5431. check_header io.h

  5432. check_header libcrystalhd/libcrystalhd_if.h

  5433. check_header mach/mach_time.h

  5434. check_header malloc.h

  5435. check_header net/udplite.h

  5436. check_header poll.h

  5437. check_header sys/mman.h

  5438. check_header sys/param.h

  5439. check_header sys/resource.h

  5440. check_header sys/select.h

  5441. check_header sys/time.h

  5442. check_header sys/un.h

  5443. check_header termios.h

  5444. check_header unistd.h

  5445. check_header valgrind/valgrind.h

  5446. check_header vdpau/vdpau.h

  5447. check_header vdpau/vdpau_x11.h

  5448. check_header VideoDecodeAcceleration/VDADecoder.h

  5449. check_header VideoToolbox/VideoToolbox.h

  5450. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5451. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5452. check_header windows.h

  5453. check_header X11/extensions/XvMClib.h

  5454. check_header asm/types.h

  5455. 

  5456. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5457. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5458. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5459. check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5460. 

  5461. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5462. 

  5463. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5464. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5465. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5466. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5467. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5468. 

  5469. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5470. check_type "va/va.h" "VADecPictureParameterBufferVP9"

  5471. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5472. 

  5473. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5474. 

  5475. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5476. 

  5477. if ! disabled w32threads && ! enabled pthreads; then

  5478.     check_func_headers "windows.h process.h" _beginthreadex &&

  5479.         enable w32threads || disable w32threads

  5480.     if ! enabled w32threads && enabled winrt; then

  5481.         check_func_headers "windows.h" CreateThread &&

  5482.             enable w32threads || disable w32threads

  5483.     fi

  5484. fi

  5485. 

  5486. # check for some common methods of building with pthread support

  5487. # do this before the optional library checks as some of them require pthreads

  5488. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5489.     enable pthreads

  5490.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5491.         add_cflags -pthread

  5492.         add_extralibs -pthread

  5493.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5494.         add_cflags -pthreads

  5495.         add_extralibs -pthreads

  5496.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5497.         add_cflags -ldl -pthread

  5498.         add_extralibs -ldl -pthread

  5499.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5500.         add_extralibs -lpthreadGC2

  5501.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5502.         :

  5503.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5504.         disable pthreads

  5505.     fi

  5506.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5507. fi

  5508. 

  5509. 

  5510. if enabled pthreads; then

  5511.   check_func pthread_cancel

  5512. fi

  5513. 

  5514. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5515. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5516. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5517. 

  5518. check_lib math.h sin -lm && LIBM="-lm"

  5519. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5520. 

  5521. atan2f_args=2

  5522. copysign_args=2

  5523. hypot_args=2

  5524. ldexpf_args=2

  5525. powf_args=2

  5526. 

  5527. for func in $MATH_FUNCS; do

  5528.     eval check_mathfunc $func \${${func}_args:-1}

  5529. done

  5530. 

  5531. for func in $COMPLEX_FUNCS; do

  5532.     eval check_complexfunc $func \${${func}_args:-1}

  5533. done

  5534. 

  5535. # these are off by default, so fail if requested and not available

  5536. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5537. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5538.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5539. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5540.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5541.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5542. enabled cuda              && { check_lib cuda.h cuInit -lcuda ||

  5543.                                die "ERROR: CUDA not found"; }

  5544. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5545. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5546. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5547. enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }

  5548. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5549. enabled gmp               && require2 gmp gmp.h mpz_export -lgmp

  5550. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5551. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&

  5552.                                check_lib2 "dlfcn.h" dlopen -ldl; }

  5553. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5554. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5555. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5556. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5557. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5558. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5559.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5560.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5561. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5562. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5563. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5564.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5565.                                  warn "using libfdk without pkg-config"; } }

  5566. 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"

  5567. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5568. enabled fontconfig        && enable libfontconfig

  5569. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5570. enabled libfreetype       && require_libfreetype

  5571. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5572. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5573. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5574.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5575.                                done || die "ERROR: libgsm not found"; }

  5576. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5577. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5578. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5579. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5580. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5581. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5582. enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc

  5583. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5584. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5585. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5586.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5587.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5588.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5589. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5590. enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5591.                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5592.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5593.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5594.                                die "ERROR: libopenjpeg not found"; }

  5595. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5596. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5597. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5598. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5599. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5600. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5601. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5602.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5603. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5604. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5605. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5606. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5607. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5608. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5609. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5610.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5611.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5612. enabled libutvideo        && { require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++ &&

  5613.                                check_cpp_condition utvideo/utvideo.h "!defined(UTVIDEO_VERSION_MAJOR) || UTVIDEO_VERSION_MAJOR < 15 || UTVIDEO_VERSION_MAJOR == 15 && UTVIDEO_VERSION_MINOR < 4" ||

  5614.                                die "ERROR: libutvideo version must be <= 15.3.0."; }

  5615. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5616. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5617. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5618. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5619. 

  5620. enabled libvpx            && {

  5621.     enabled libvpx_vp8_decoder && {

  5622.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5623.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5624.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5625.     }

  5626.     enabled libvpx_vp8_encoder && {

  5627.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5628.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5629.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5630.     }

  5631.     enabled libvpx_vp9_decoder && {

  5632.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5633.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5634.                 disable libvpx_vp9_decoder;

  5635.     }

  5636.     enabled libvpx_vp9_encoder && {

  5637.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5638.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5639.                 disable libvpx_vp9_encoder;

  5640.     }

  5641.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5642.         die "libvpx enabled but no supported decoders found"

  5643.     fi

  5644. }

  5645. 

  5646. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5647. enabled libwebp           && {

  5648.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5649.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5650. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5651.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5652.                                  warn "using libx264 without pkg-config"; } } &&

  5653.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5654.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5655.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5656.                                enable libx262; }

  5657. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5658.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5659.                                die "ERROR: libx265 version must be >= 68."; }

  5660. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5661. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5662. enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version

  5663. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5664. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5665.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5666.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5667. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5668. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5669.                                 { ! enabled cross_compile && {

  5670.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5671.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5672.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5673.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5674.                                die "ERROR: mmal not found"; }

  5675. enabled mmal &&

  5676.     (check_code cc interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS" ||

  5677.      die "ERROR: mmal firmware headers too old")

  5678. 

  5679. enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers

  5680. enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&

  5681.                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||

  5682.                                die "ERROR: NVENC API version 5 or older is not supported"; } &&

  5683.                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }

  5684. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5685.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5686.                                die "ERROR: openal not found"; } &&

  5687.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5688.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5689. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5690.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5691.                                die "ERROR: opencl not found"; } &&

  5692.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5693.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5694.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5695. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5696.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5697.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5698.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5699.                                die "ERROR: opengl not found."

  5700.                              }

  5701. enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  5702.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5703.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5704.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5705.                                die "ERROR: openssl not found"; }

  5706. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5707. 

  5708. # libdc1394 check

  5709. if enabled libdc1394; then

  5710.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5711.         enable libdc1394_2; } ||

  5712.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5713.         enable libdc1394_1; } ||

  5714.     die "ERROR: No version of libdc1394 found "

  5715. fi

  5716. 

  5717. if enabled gcrypt; then

  5718.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5719.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  5720.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  5721.         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)

  5722.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||

  5723.             die "ERROR: gcrypt not found"

  5724.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs

  5725.     else

  5726.         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  5727.     fi

  5728. fi

  5729. 

  5730. if ! disabled sdl; then

  5731.     SDL_CONFIG="${cross_prefix}sdl-config"

  5732.     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then

  5733.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5734.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5735.         enable sdl

  5736.     else

  5737.         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then

  5738.             sdl_cflags=$("${SDL_CONFIG}" --cflags)

  5739.             sdl_libs=$("${SDL_CONFIG}" --libs)

  5740.             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&

  5741.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5742.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5743.             enable sdl

  5744.         elif enabled sdl ; then

  5745.             die "ERROR: SDL not found"

  5746.         else

  5747.             disable sdl

  5748.         fi

  5749.     fi

  5750.     if test $target_os = "mingw32"; then

  5751.         sdl_libs="$sdl_libs -mconsole"

  5752.     fi

  5753. fi

  5754. enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs

  5755. 

  5756. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5757.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5758.     enable securetransport; }

  5759. 

  5760. disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  5761.                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }

  5762. 

  5763. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5764. enabled makeinfo \

  5765.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5766.     && enable makeinfo_html || disable makeinfo_html

  5767. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5768. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5769. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5770. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5771. 

  5772. check_header linux/fb.h

  5773. check_header linux/videodev.h

  5774. check_header linux/videodev2.h

  5775. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5776. 

  5777. check_header sys/videoio.h

  5778. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5779. 

  5780. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5781. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5782. # w32api 3.12 had it defined wrong

  5783. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5784. 

  5785. check_type "dshow.h" IBaseFilter

  5786. 

  5787. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5788. { check_header dev/bktr/ioctl_meteor.h &&

  5789.   check_header dev/bktr/ioctl_bt848.h; } ||

  5790. { check_header machine/ioctl_meteor.h &&

  5791.   check_header machine/ioctl_bt848.h; } ||

  5792. { check_header dev/video/meteor/ioctl_meteor.h &&

  5793.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5794. check_header dev/ic/bt8xx.h

  5795. 

  5796. check_header sndio.h

  5797. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5798.     enable_safe sys/soundcard.h

  5799. else

  5800.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5801.     #include <sys/soundcard.h>

  5802.     audio_buf_info abc;

  5803. EOF

  5804. fi

  5805. check_header soundcard.h

  5806. 

  5807. enabled_any alsa_indev alsa_outdev &&

  5808.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5809. 

  5810. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&

  5811.     check_func jack_port_get_latency_range -ljack

  5812. 

  5813. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5814. 

  5815. if enabled libcdio; then

  5816.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5817.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5818.     die "ERROR: No usable libcdio/cdparanoia found"

  5819. fi

  5820. 

  5821. enabled xlib &&

  5822.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5823. 

  5824. if ! disabled libxcb; then

  5825.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5826.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5827.     } && disable x11grab && enable libxcb

  5828. 

  5829. if enabled libxcb; then

  5830.     disabled libxcb_shm || {

  5831.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5832.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5833.         } && check_header sys/shm.h && enable libxcb_shm; }

  5834. 

  5835.     disabled libxcb_xfixes || {

  5836.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5837.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5838.         } && enable libxcb_xfixes; }

  5839. 

  5840.     disabled libxcb_shape || {

  5841.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5842.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5843.         } && enable libxcb_shape; }

  5844. 

  5845.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5846.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5847. fi

  5848. fi

  5849. 

  5850. if enabled x11grab; then

  5851.     enabled xlib || die "ERROR: Xlib not found"

  5852.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5853.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5854. fi

  5855. 

  5856. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5857. 

  5858. enabled dxva2api_h &&

  5859.     check_cc <<EOF && enable dxva2api_cobj

  5860. #define _WIN32_WINNT 0x0600

  5861. #define COBJMACROS

  5862. #include <windows.h>

  5863. #include <d3d9.h>

  5864. #include <dxva2api.h>

  5865. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5866. EOF

  5867. 

  5868. enabled vaapi &&

  5869.     check_lib va/va.h vaInitialize -lva ||

  5870.     disable vaapi

  5871. 

  5872. enabled vaapi &&

  5873.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  5874.     disable vaapi

  5875. 

  5876. if enabled vaapi ; then

  5877.     enabled xlib &&

  5878.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  5879.     enable vaapi_x11

  5880. 

  5881.     check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&

  5882.     enable vaapi_drm

  5883. fi

  5884. 

  5885. enabled vdpau &&

  5886.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  5887.     disable vdpau

  5888. 

  5889. enabled vdpau && enabled xlib &&

  5890.     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  5891.     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&

  5892.     enable vdpau_x11

  5893. 

  5894. # Funny iconv installations are not unusual, so check it after all flags have been set

  5895. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  5896. 

  5897. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  5898. 

  5899. # add some useful compiler flags if supported

  5900. check_cflags -Wdeclaration-after-statement

  5901. check_cflags -Wall

  5902. check_cflags -Wdisabled-optimization

  5903. check_cflags -Wpointer-arith

  5904. check_cflags -Wredundant-decls

  5905. check_cflags -Wwrite-strings

  5906. check_cflags -Wtype-limits

  5907. check_cflags -Wundef

  5908. check_cflags -Wmissing-prototypes

  5909. check_cflags -Wno-pointer-to-int-cast

  5910. check_cflags -Wstrict-prototypes

  5911. check_cflags -Wempty-body

  5912. enabled extra_warnings && check_cflags -Winline

  5913. enabled extra_warnings && check_cflags -Wcast-qual

  5914. 

  5915. check_disable_warning(){

  5916.     warning_flag=-W${1#-Wno-}

  5917.     test_cflags $warning_flag && add_cflags $1

  5918. }

  5919. 

  5920. check_disable_warning -Wno-parentheses

  5921. check_disable_warning -Wno-switch

  5922. check_disable_warning -Wno-format-zero-length

  5923. check_disable_warning -Wno-pointer-sign

  5924. check_disable_warning -Wno-unused-const-variable

  5925. 

  5926. # add some linker flags

  5927. check_ldflags -Wl,--warn-common

  5928. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  5929. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  5930. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  5931. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  5932. 

  5933. # add some strip flags

  5934. # -wN '..@*' is more selective than -x, but not available everywhere.

  5935. check_stripflags -wN \'..@*\' || check_stripflags -x

  5936. 

  5937. enabled neon_clobber_test &&

  5938.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5939.                   -Wl,--wrap,avcodec_decode_audio4      \

  5940.                   -Wl,--wrap,avcodec_decode_video2      \

  5941.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5942.                   -Wl,--wrap,avcodec_encode_audio2      \

  5943.                   -Wl,--wrap,avcodec_encode_video2      \

  5944.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5945.                   -Wl,--wrap,swr_convert                \

  5946.                   -Wl,--wrap,avresample_convert ||

  5947.     disable neon_clobber_test

  5948. 

  5949. enabled xmm_clobber_test &&

  5950.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5951.                   -Wl,--wrap,avcodec_decode_audio4      \

  5952.                   -Wl,--wrap,avcodec_decode_video2      \

  5953.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5954.                   -Wl,--wrap,avcodec_encode_audio2      \

  5955.                   -Wl,--wrap,avcodec_encode_video2      \

  5956.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5957.                   -Wl,--wrap,swr_convert                \

  5958.                   -Wl,--wrap,avresample_convert         \

  5959.                   -Wl,--wrap,sws_scale ||

  5960.     disable xmm_clobber_test

  5961. 

  5962. echo "X { local: *; };" > $TMPV

  5963. if test_ldflags -Wl,--version-script,$TMPV; then

  5964.     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'

  5965. elif test_ldflags -Wl,-M,$TMPV; then

  5966.     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'

  5967. fi

  5968. 

  5969. check_cc <<EOF && enable symver_asm_label

  5970. void ff_foo(void) __asm__ ("av_foo@VERSION");

  5971. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  5972. EOF

  5973.     check_cc <<EOF && enable symver_gnu_asm

  5974. __asm__(".symver ff_foo,av_foo@VERSION");

  5975. void ff_foo(void) {}

  5976. EOF

  5977. 

  5978. if [ -z "$optflags" ]; then

  5979.     if enabled small; then

  5980.         optflags=$cflags_size

  5981.     elif enabled optimizations; then

  5982.         optflags=$cflags_speed

  5983.     else

  5984.         optflags=$cflags_noopt

  5985.     fi

  5986. fi

  5987. 

  5988. check_optflags(){

  5989.     check_cflags "$@"

  5990.     enabled lto && check_ldflags "$@"

  5991. }

  5992. 

  5993. 

  5994. if enabled lto; then

  5995.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  5996.     check_cflags  -flto

  5997.     check_ldflags -flto $cpuflags

  5998.     disable inline_asm_direct_symbol_refs

  5999. fi

  6000. 

  6001. check_optflags $optflags

  6002. check_optflags -fno-math-errno

  6003. check_optflags -fno-signed-zeros

  6004. 

  6005. enabled ftrapv && check_cflags -ftrapv

  6006. 

  6007. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6008. int x;

  6009. EOF

  6010. 

  6011. 

  6012. if enabled icc; then

  6013.     # Just warnings, no remarks

  6014.     check_cflags -w1

  6015.     # -wd: Disable following warnings

  6016.     # 144, 167, 556: -Wno-pointer-sign

  6017.     # 188: enumerated type mixed with another type

  6018.     # 1292: attribute "foo" ignored

  6019.     # 1419: external declaration in primary source file

  6020.     # 10006: ignoring unknown option -fno-signed-zeros

  6021.     # 10148: ignoring unknown option -Wno-parentheses

  6022.     # 10156: ignoring option '-W'; no argument required

  6023.     # 13200: No EMMS instruction before call to function

  6024.     # 13203: No EMMS instruction before return from function

  6025.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6026.     # 11030: Warning unknown option --as-needed

  6027.     # 10156: ignoring option '-export'; no argument required

  6028.     check_ldflags -wd10156,11030

  6029.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6030.     enable ebp_available

  6031.     # The test above does not test linking

  6032.     enabled lto && disable symver_asm_label

  6033.     if enabled x86_32; then

  6034.         icc_version=$($cc -dumpversion)

  6035.         test ${icc_version%%.*} -ge 11 &&

  6036.             check_cflags -falign-stack=maintain-16-byte ||

  6037.             disable aligned_stack

  6038.     fi

  6039. elif enabled ccc; then

  6040.     # disable some annoying warnings

  6041.     add_cflags -msg_disable bitnotint

  6042.     add_cflags -msg_disable mixfuncvoid

  6043.     add_cflags -msg_disable nonstandcast

  6044.     add_cflags -msg_disable unsupieee

  6045. elif enabled gcc; then

  6046.     case $gcc_basever in

  6047.         4.9*) enabled x86 || check_optflags -fno-tree-vectorize ;;

  6048.         4.*)                 check_optflags -fno-tree-vectorize ;;

  6049.         *)    enabled x86 || check_optflags -fno-tree-vectorize ;;

  6050.     esac

  6051.     check_cflags -Werror=format-security

  6052.     check_cflags -Werror=implicit-function-declaration

  6053.     check_cflags -Werror=missing-prototypes

  6054.     check_cflags -Werror=return-type

  6055.     check_cflags -Werror=vla

  6056.     check_cflags -Wformat

  6057.     check_cflags -fdiagnostics-color=auto

  6058.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6059. elif enabled llvm_gcc; then

  6060.     check_cflags -mllvm -stack-alignment=16

  6061. elif enabled clang; then

  6062.     check_cflags -mllvm -stack-alignment=16

  6063.     check_cflags -Qunused-arguments

  6064.     check_cflags -Werror=implicit-function-declaration

  6065.     check_cflags -Werror=missing-prototypes

  6066.     check_cflags -Werror=return-type

  6067. elif enabled cparser; then

  6068.     add_cflags -Wno-missing-variable-declarations

  6069.     add_cflags -Wno-empty-statement

  6070. elif enabled armcc; then

  6071.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6072.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6073.     # 2523: use of inline assembly is deprecated

  6074.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6075.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6076.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6077.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6078.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6079.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6080. elif enabled tms470; then

  6081.     add_cflags -pds=824 -pds=837

  6082.     disable inline_asm

  6083. elif enabled pathscale; then

  6084.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6085. elif enabled_any msvc icl; then

  6086.     enabled x86_32 && disable aligned_stack

  6087.     enabled_all x86_32 debug && add_cflags -Oy-

  6088.     enabled debug && add_ldflags -debug

  6089.     enable pragma_deprecated

  6090.     if enabled icl; then

  6091.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6092.         # (correctly) on icl 13.x.

  6093.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6094.             add_cflags -Qansi-alias

  6095.         # Some inline asm is not compilable in debug

  6096.         if enabled debug; then

  6097.             disable ebp_available

  6098.             disable ebx_available

  6099.         fi

  6100.     fi

  6101.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6102.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6103.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6104.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6105.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6106.     # MSVC 2013 and newer can handle it fine.

  6107.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6108.     # happens in config.h.

  6109.     if [ $_restrict != restrict ]; then

  6110.         check_cc <<EOF || add_cflags -FIstdlib.h

  6111. __declspec($_restrict) void* foo(int);

  6112. EOF

  6113.     fi

  6114.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  6115. fi

  6116. 

  6117. for pfx in "" host_; do

  6118.     varname=${pfx%_}cc_type

  6119.     eval "type=\$$varname"

  6120.     if [ $type = "msvc" ]; then

  6121.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6122. static inline int foo(int a) { return a; }

  6123. EOF

  6124.     fi

  6125. done

  6126. 

  6127. case $as_type in

  6128.     clang)

  6129.         add_asflags -Qunused-arguments

  6130.     ;;

  6131. esac

  6132. 

  6133. case $ld_type in

  6134.     clang)

  6135.         check_ldflags -Qunused-arguments

  6136.     ;;

  6137. esac

  6138. 

  6139. case $target_os in

  6140.     osf1)

  6141.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6142.     ;;

  6143.     plan9)

  6144.         add_cppflags -Dmain=plan9_main

  6145.     ;;

  6146. esac

  6147. 

  6148. enable frame_thread_encoder

  6149. 

  6150. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6151. 

  6152. check_deps $CONFIG_LIST       \

  6153.            $CONFIG_EXTRA      \

  6154.            $HAVE_LIST         \

  6155.            $ALL_COMPONENTS    \

  6156. 

  6157. 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"

  6158. 

  6159. 

  6160. if test $target_os = "haiku"; then

  6161.     disable memalign

  6162.     disable posix_memalign

  6163. fi

  6164. 

  6165. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  6166.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  6167.     enable dxva2_lib

  6168. 

  6169. ! enabled_any memalign posix_memalign aligned_malloc &&

  6170.     enabled simd_align_16 && enable memalign_hack

  6171. 

  6172. # add_dep lib dep

  6173. # -> enable ${lib}_deps_${dep}

  6174. # -> add $dep to ${lib}_deps only once

  6175. add_dep() {

  6176.     lib=$1

  6177.     dep=$2

  6178.     enabled "${lib}_deps_${dep}" && return 0

  6179.     enable  "${lib}_deps_${dep}"

  6180.     prepend "${lib}_deps" $dep

  6181. }

  6182. 

  6183. # merge deps lib components

  6184. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6185. merge_deps() {

  6186.     lib=$1

  6187.     shift

  6188.     for comp in $*; do

  6189.         enabled $comp || continue

  6190.         eval "dep=\"\$${comp}_deps\""

  6191.         for d in $dep; do

  6192.             add_dep $lib $d

  6193.         done

  6194.     done

  6195. }

  6196. 

  6197. merge_deps libavfilter $FILTER_LIST

  6198. 

  6199. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6200. 

  6201. for thread in $THREADS_LIST; do

  6202.     if enabled $thread; then

  6203.         test -n "$thread_type" &&

  6204.             die "ERROR: Only one thread type must be selected." ||

  6205.             thread_type="$thread"

  6206.     fi

  6207. done

  6208. 

  6209. enabled zlib && add_cppflags -DZLIB_CONST

  6210. 

  6211. # conditional library dependencies, in linking order

  6212. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6213. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6214. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6215. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  6216. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6217. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6218. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6219. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6220. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6221. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6222. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6223. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6224. enabled pan_filter          && prepend avfilter_deps "swresample"

  6225. enabled pp_filter           && prepend avfilter_deps "postproc"

  6226. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6227. enabled resample_filter && prepend avfilter_deps "avresample"

  6228. enabled sab_filter          && prepend avfilter_deps "swscale"

  6229. enabled scale_filter    && prepend avfilter_deps "swscale"

  6230. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6231. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6232. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6233. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6234. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6235. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6236. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6237. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6238. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6239. 

  6240. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6241. 

  6242. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6243. 

  6244. expand_deps(){

  6245.     lib_deps=${1}_deps

  6246.     eval "deps=\$$lib_deps"

  6247.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6248.     unique $lib_deps

  6249. }

  6250. 

  6251. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6252. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6253. 

  6254. map 'expand_deps $v' $LIBRARY_LIST

  6255. 

  6256. echo "install prefix            $prefix"

  6257. echo "source path               $source_path"

  6258. echo "C compiler                $cc"

  6259. echo "C library                 $libc_type"

  6260. if test "$host_cc" != "$cc"; then

  6261.     echo "host C compiler           $host_cc"

  6262.     echo "host C library            $host_libc_type"

  6263. fi

  6264. echo "ARCH                      $arch ($cpu)"

  6265. if test "$build_suffix" != ""; then

  6266.     echo "build suffix              $build_suffix"

  6267. fi

  6268. if test "$progs_suffix" != ""; then

  6269.     echo "progs suffix              $progs_suffix"

  6270. fi

  6271. if test "$extra_version" != ""; then

  6272.     echo "version string suffix     $extra_version"

  6273. fi

  6274. echo "big-endian                ${bigendian-no}"

  6275. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6276. if enabled x86; then

  6277.     echo "${yasmexe}                      ${yasm-no}"

  6278.     echo "MMX enabled               ${mmx-no}"

  6279.     echo "MMXEXT enabled            ${mmxext-no}"

  6280.     echo "3DNow! enabled            ${amd3dnow-no}"

  6281.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6282.     echo "SSE enabled               ${sse-no}"

  6283.     echo "SSSE3 enabled             ${ssse3-no}"

  6284.     echo "AESNI enabled             ${aesni-no}"

  6285.     echo "AVX enabled               ${avx-no}"

  6286.     echo "XOP enabled               ${xop-no}"

  6287.     echo "FMA3 enabled              ${fma3-no}"

  6288.     echo "FMA4 enabled              ${fma4-no}"

  6289.     echo "i686 features enabled     ${i686-no}"

  6290.     echo "CMOV is fast              ${fast_cmov-no}"

  6291.     echo "EBX available             ${ebx_available-no}"

  6292.     echo "EBP available             ${ebp_available-no}"

  6293. fi

  6294. if enabled aarch64; then

  6295.     echo "NEON enabled              ${neon-no}"

  6296.     echo "VFP enabled               ${vfp-no}"

  6297. fi

  6298. if enabled arm; then

  6299.     echo "ARMv5TE enabled           ${armv5te-no}"

  6300.     echo "ARMv6 enabled             ${armv6-no}"

  6301.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6302.     echo "VFP enabled               ${vfp-no}"

  6303.     echo "NEON enabled              ${neon-no}"

  6304.     echo "THUMB enabled             ${thumb-no}"

  6305. fi

  6306. if enabled mips; then

  6307.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6308.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6309.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6310.     echo "MIPS MSA enabled          ${msa-no}"

  6311.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6312. fi

  6313. if enabled ppc; then

  6314.     echo "AltiVec enabled           ${altivec-no}"

  6315.     echo "VSX enabled               ${vsx-no}"

  6316.     echo "POWER8 enabled            ${power8-no}"

  6317.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6318.     echo "dcbzl available           ${dcbzl-no}"

  6319. fi

  6320. echo "debug symbols             ${debug-no}"

  6321. echo "strip symbols             ${stripping-no}"

  6322. echo "optimize for size         ${small-no}"

  6323. echo "optimizations             ${optimizations-no}"

  6324. echo "static                    ${static-no}"

  6325. echo "shared                    ${shared-no}"

  6326. echo "postprocessing support    ${postproc-no}"

  6327. echo "new filter support        ${avfilter-no}"

  6328. echo "network support           ${network-no}"

  6329. echo "threading support         ${thread_type-no}"

  6330. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6331. echo "SDL support               ${sdl-no}"

  6332. echo "opencl enabled            ${opencl-no}"

  6333. echo "JNI support               ${jni-no}"

  6334. echo "texi2html enabled         ${texi2html-no}"

  6335. echo "perl enabled              ${perl-no}"

  6336. echo "pod2man enabled           ${pod2man-no}"

  6337. echo "makeinfo enabled          ${makeinfo-no}"

  6338. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6339. test -n "$random_seed" &&

  6340.     echo "random seed               ${random_seed}"

  6341. echo

  6342. 

  6343. echo "Enabled programs:"

  6344. print_enabled '' $PROGRAM_LIST | print_in_columns

  6345. echo

  6346. 

  6347. echo "External libraries:"

  6348. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6349. echo

  6350. 

  6351. echo "Libraries:"

  6352. print_enabled '' $LIBRARY_LIST | print_in_columns

  6353. echo

  6354. 

  6355. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6356.     echo "Enabled ${type}s:"

  6357.     eval list=\$$(toupper $type)_LIST

  6358.     print_enabled '_*' $list | print_in_columns

  6359.     echo

  6360. done

  6361. 

  6362. license="LGPL version 2.1 or later"

  6363. if enabled nonfree; then

  6364.     license="nonfree and unredistributable"

  6365. elif enabled gplv3; then

  6366.     license="GPL version 3 or later"

  6367. elif enabled lgplv3; then

  6368.     license="LGPL version 3 or later"

  6369. elif enabled gpl; then

  6370.     license="GPL version 2 or later"

  6371. fi

  6372. 

  6373. echo "License: $license"

  6374. 

  6375. echo "Creating config.mak, config.h, and doc/config.texi..."

  6376. 

  6377. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6378. 

  6379. enabled stripping || strip="echo skipping strip"

  6380. 

  6381. config_files="$TMPH config.mak doc/config.texi"

  6382. 

  6383. cat > config.mak <<EOF

  6384. # Automatically generated by configure - do not modify!

  6385. ifndef FFMPEG_CONFIG_MAK

  6386. FFMPEG_CONFIG_MAK=1

  6387. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6388. prefix=$prefix

  6389. LIBDIR=\$(DESTDIR)$libdir

  6390. SHLIBDIR=\$(DESTDIR)$shlibdir

  6391. INCDIR=\$(DESTDIR)$incdir

  6392. BINDIR=\$(DESTDIR)$bindir

  6393. DATADIR=\$(DESTDIR)$datadir

  6394. DOCDIR=\$(DESTDIR)$docdir

  6395. MANDIR=\$(DESTDIR)$mandir

  6396. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6397. INSTALL_NAME_DIR=$install_name_dir

  6398. SRC_PATH=$source_path

  6399. SRC_LINK=$source_link

  6400. ifndef MAIN_MAKEFILE

  6401. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6402. endif

  6403. CC_IDENT=$cc_ident

  6404. ARCH=$arch

  6405. INTRINSICS=$intrinsics

  6406. CC=$cc

  6407. CXX=$cxx

  6408. AS=$as

  6409. OBJCC=$objcc

  6410. LD=$ld

  6411. DEPCC=$dep_cc

  6412. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6413. DEPAS=$as

  6414. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6415. YASM=$yasmexe

  6416. DEPYASM=$yasmexe

  6417. AR=$ar

  6418. ARFLAGS=$arflags

  6419. AR_O=$ar_o

  6420. RANLIB=$ranlib

  6421. STRIP=$strip

  6422. CP=cp -p

  6423. LN_S=$ln_s

  6424. CPPFLAGS=$CPPFLAGS

  6425. CFLAGS=$CFLAGS

  6426. CXXFLAGS=$CXXFLAGS

  6427. OBJCFLAGS=$OBJCFLAGS

  6428. ASFLAGS=$ASFLAGS

  6429. AS_C=$AS_C

  6430. AS_O=$AS_O

  6431. OBJCC_C=$OBJCC_C

  6432. OBJCC_E=$OBJCC_E

  6433. OBJCC_O=$OBJCC_O

  6434. CC_C=$CC_C

  6435. CC_E=$CC_E

  6436. CC_O=$CC_O

  6437. CXX_C=$CXX_C

  6438. CXX_O=$CXX_O

  6439. LD_O=$LD_O

  6440. LD_LIB=$LD_LIB

  6441. LD_PATH=$LD_PATH

  6442. DLLTOOL=$dlltool

  6443. WINDRES=$windres

  6444. DEPWINDRES=$dep_cc

  6445. DOXYGEN=$doxygen

  6446. LDFLAGS=$LDFLAGS

  6447. LDEXEFLAGS=$LDEXEFLAGS

  6448. LDLIBFLAGS=$LDLIBFLAGS

  6449. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6450. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6451. YASMFLAGS=$YASMFLAGS

  6452. BUILDSUF=$build_suffix

  6453. PROGSSUF=$progs_suffix

  6454. FULLNAME=$FULLNAME

  6455. LIBPREF=$LIBPREF

  6456. LIBSUF=$LIBSUF

  6457. LIBNAME=$LIBNAME

  6458. SLIBPREF=$SLIBPREF

  6459. SLIBSUF=$SLIBSUF

  6460. EXESUF=$EXESUF

  6461. EXTRA_VERSION=$extra_version

  6462. CCDEP=$CCDEP

  6463. CXXDEP=$CXXDEP

  6464. CCDEP_FLAGS=$CCDEP_FLAGS

  6465. ASDEP=$ASDEP

  6466. ASDEP_FLAGS=$ASDEP_FLAGS

  6467. CC_DEPFLAGS=$CC_DEPFLAGS

  6468. AS_DEPFLAGS=$AS_DEPFLAGS

  6469. HOSTCC=$host_cc

  6470. HOSTLD=$host_ld

  6471. HOSTCFLAGS=$host_cflags

  6472. HOSTCPPFLAGS=$host_cppflags

  6473. HOSTEXESUF=$HOSTEXESUF

  6474. HOSTLDFLAGS=$host_ldflags

  6475. HOSTLIBS=$host_libs

  6476. DEPHOSTCC=$host_cc

  6477. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6478. HOSTCCDEP=$HOSTCCDEP

  6479. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6480. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6481. HOSTCC_C=$HOSTCC_C

  6482. HOSTCC_O=$HOSTCC_O

  6483. HOSTLD_O=$HOSTLD_O

  6484. TARGET_EXEC=$target_exec $target_exec_args

  6485. TARGET_PATH=$target_path

  6486. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6487. CFLAGS-ffplay=$sdl_cflags

  6488. ZLIB=$($ldflags_filter -lz)

  6489. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6490. EXTRALIBS=$extralibs

  6491. COMPAT_OBJS=$compat_objs

  6492. EXEOBJS=$exeobjs

  6493. INSTALL=$install

  6494. LIBTARGET=${LIBTARGET}

  6495. SLIBNAME=${SLIBNAME}

  6496. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6497. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6498. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6499. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6500. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6501. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6502. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6503. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6504. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6505. NOREDZONE_FLAGS=$noredzone_flags

  6506. EOF

  6507. 

  6508. get_version(){

  6509.     lcname=lib${1}

  6510.     name=$(toupper $lcname)

  6511.     file=$source_path/$lcname/version.h

  6512.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6513.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6514.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6515.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6516.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6517.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6518. }

  6519. 

  6520. map 'get_version $v' $LIBRARY_LIST

  6521. 

  6522. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6523. 

  6524. print_program_libs(){

  6525.     eval "program_libs=\$${1}_libs"

  6526.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6527. }

  6528. 

  6529. map 'print_program_libs $v' $PROGRAM_LIST

  6530. 

  6531. cat > $TMPH <<EOF

  6532. /* Automatically generated by configure - do not modify! */

  6533. #ifndef FFMPEG_CONFIG_H

  6534. #define FFMPEG_CONFIG_H

  6535. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6536. #define FFMPEG_LICENSE "$(c_escape $license)"

  6537. #define CONFIG_THIS_YEAR 2016

  6538. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6539. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6540. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6541. #define av_restrict $_restrict

  6542. #define EXTERN_PREFIX "${extern_prefix}"

  6543. #define EXTERN_ASM ${extern_prefix}

  6544. #define BUILDSUF "$build_suffix"

  6545. #define SLIBSUF "$SLIBSUF"

  6546. #define HAVE_MMX2 HAVE_MMXEXT

  6547. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6548. EOF

  6549. 

  6550. test -n "$assert_level" &&

  6551.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6552. 

  6553. test -n "$malloc_prefix" &&

  6554.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6555. 

  6556. if enabled yasm; then

  6557.     append config_files $TMPASM

  6558.     printf '' >$TMPASM

  6559. fi

  6560. 

  6561. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6562. 

  6563. 

  6564. mkdir -p doc

  6565. mkdir -p tests

  6566. mkdir -p tests/api

  6567. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6568. 

  6569. print_config ARCH_   "$config_files" $ARCH_LIST

  6570. print_config HAVE_   "$config_files" $HAVE_LIST

  6571. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6572.                                      $CONFIG_EXTRA      \

  6573.                                      $ALL_COMPONENTS    \

  6574. 

  6575. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6576. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6577. 

  6578. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6579. cp_if_changed $TMPH config.h

  6580. touch .config

  6581. 

  6582. enabled yasm && cp_if_changed $TMPASM config.asm

  6583. 

  6584. cat > $TMPH <<EOF

  6585. /* Generated by ffconf */

  6586. #ifndef AVUTIL_AVCONFIG_H

  6587. #define AVUTIL_AVCONFIG_H

  6588. EOF

  6589. 

  6590. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6591. 

  6592. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6593. 

  6594. cp_if_changed $TMPH libavutil/avconfig.h

  6595. 

  6596. if test -n "$WARNINGS"; then

  6597.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6598.     enabled fatal_warnings && exit 1

  6599. fi

  6600. 

  6601. # build pkg-config files

  6602. 

  6603. lib_version(){

  6604.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6605. }

  6606. 

  6607. pkgconfig_generate(){

  6608.     name=$1

  6609.     shortname=${name#lib}${build_suffix}

  6610.     comment=$2

  6611.     version=$3

  6612.     libs=$4

  6613.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6614.     requires=${requires%, }

  6615.     enabled ${name#lib} || return 0

  6616.     mkdir -p $name

  6617.     cat <<EOF > $name/$name${build_suffix}.pc

  6618. prefix=$prefix

  6619. exec_prefix=\${prefix}

  6620. libdir=$libdir

  6621. includedir=$incdir

  6622. 

  6623. Name: $name

  6624. Description: $comment

  6625. Version: $version

  6626. Requires: $(enabled shared || echo $requires)

  6627. Requires.private: $(enabled shared && echo $requires)

  6628. Conflicts:

  6629. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6630. Libs.private: $(enabled shared && echo $libs)

  6631. Cflags: -I\${includedir}

  6632. EOF

  6633. 

  6634. mkdir -p doc/examples/pc-uninstalled

  6635. includedir=${source_path}

  6636. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6637.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6638. prefix=

  6639. exec_prefix=

  6640. libdir=\${pcfiledir}/../../../$name

  6641. includedir=${includedir}

  6642. 

  6643. Name: $name

  6644. Description: $comment

  6645. Version: $version

  6646. Requires: $requires

  6647. Conflicts:

  6648. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6649. Cflags: -I\${includedir}

  6650. EOF

  6651. }

  6652. 

  6653. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6654. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6655. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6656. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6657. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6658. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6659. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6660. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6661. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"