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

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

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

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

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

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

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

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

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

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

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

  208.                            if openssl is not used [no]

  209.   --disable-iconv          disable iconv [autodetect]

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

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

  212.   --enable-libass          enable libass subtitles rendering,

  213.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  220.                            and libraw1394 [no]

  221.   --enable-libdcadec       enable DCA decoding via libdcadec [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-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  261.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  277.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

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

  283.   --enable-opencl          enable OpenCL code

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

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

  286.                            if gnutls is not used [no]

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

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

  289.   --disable-sdl            disable sdl [autodetect]

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

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

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

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

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

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

  296. 

  297. Toolchain options:

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

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

  300.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  348. 

  349. Advanced options (experts only):

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

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

  352.   --disable-symver         disable symbol versioning

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

  354.   --disable-safe-bitstream-reader

  355.                            disable buffer boundary checking in bitreaders

  356.                            (faster, but may crash)

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

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

  359. 

  360. Optimization options (experts only):

  361.   --disable-asm            disable all assembly optimizations

  362.   --disable-altivec        disable AltiVec optimizations

  363.   --disable-vsx            disable VSX optimizations

  364.   --disable-power8         disable POWER8 optimizations

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

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

  367.   --disable-mmx            disable MMX optimizations

  368.   --disable-mmxext         disable MMXEXT optimizations

  369.   --disable-sse            disable SSE optimizations

  370.   --disable-sse2           disable SSE2 optimizations

  371.   --disable-sse3           disable SSE3 optimizations

  372.   --disable-ssse3          disable SSSE3 optimizations

  373.   --disable-sse4           disable SSE4 optimizations

  374.   --disable-sse42          disable SSE4.2 optimizations

  375.   --disable-avx            disable AVX optimizations

  376.   --disable-xop            disable XOP optimizations

  377.   --disable-fma3           disable FMA3 optimizations

  378.   --disable-fma4           disable FMA4 optimizations

  379.   --disable-avx2           disable AVX2 optimizations

  380.   --disable-aesni          disable AESNI optimizations

  381.   --disable-armv5te        disable armv5te optimizations

  382.   --disable-armv6          disable armv6 optimizations

  383.   --disable-armv6t2        disable armv6t2 optimizations

  384.   --disable-vfp            disable VFP optimizations

  385.   --disable-neon           disable NEON optimizations

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

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

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

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

  390.   --disable-msa            disable MSA optimizations

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

  392.   --disable-mmi            disable Loongson SIMD optimizations

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

  394. 

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

  396.   --disable-debug          disable debugging symbols

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

  398.   --disable-optimizations  disable compiler optimizations

  399.   --enable-extra-warnings  enable more compiler warnings

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

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

  402.                            2 causes a slowdown at runtime.

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

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

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

  406.                            Cannot be combined with --target-exec

  407.   --enable-ftrapv          Trap arithmetic overflows

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

  409.                            \$FATE_SAMPLES at make invocation time.

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

  411.                            used only for debugging purposes)

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

  413.                            should be used only for debugging purposes)

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

  415.   --disable-random

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

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

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

  419.                            (group) and PROB the probability associated with

  420.                            NAME (default 0.5).

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

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

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

  424. 

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

  426. EOF

  427.   exit 0

  428. }

  429. 

  430. quotes='""'

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

  432.     ncolors=$(tput colors)

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

  434.         bold_color=$(tput bold)

  435.         warn_color=$(tput setaf 3)

  436.         error_color=$(tput setaf 1)

  437.         reset_color=$(tput sgr0)

  438.     fi

  439.     # 72 used instead of 80 since that's the default of pr

  440.     ncols=$(tput cols)

  441. fi

  442. : ${ncols:=72}

  443. 

  444. log(){

  445.     echo "$@" >> $logfile

  446. }

  447. 

  448. log_file(){

  449.     log BEGIN $1

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

  451.     log END $1

  452. }

  453. 

  454. warn(){

  455.     log "WARNING: $*"

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

  457. }

  458. 

  459. die(){

  460.     log "$@"

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

  462.     cat <<EOF

  463. 

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

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

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

  467. EOF

  468.     if disabled logging; then

  469.         cat <<EOF

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

  471. include the log this produces with your report.

  472. EOF

  473.     else

  474.         cat <<EOF

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

  476. solve the problem.

  477. EOF

  478.     fi

  479.     exit 1

  480. }

  481. 

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

  483. toupper(){

  484.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  485. }

  486. 

  487. tolower(){

  488.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  489. }

  490. 

  491. c_escape(){

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

  493. }

  494. 

  495. sh_quote(){

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

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

  498.     echo "$v"

  499. }

  500. 

  501. cleanws(){

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

  503. }

  504. 

  505. filter(){

  506.     pat=$1

  507.     shift

  508.     for v; do

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

  510.     done

  511. }

  512. 

  513. filter_out(){

  514.     pat=$1

  515.     shift

  516.     for v; do

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

  518.     done

  519. }

  520. 

  521. map(){

  522.     m=$1

  523.     shift

  524.     for v; do eval $m; done

  525. }

  526. 

  527. add_suffix(){

  528.     suffix=$1

  529.     shift

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

  531. }

  532. 

  533. set_all(){

  534.     value=$1

  535.     shift

  536.     for var in $*; do

  537.         eval $var=$value

  538.     done

  539. }

  540. 

  541. set_weak(){

  542.     value=$1

  543.     shift

  544.     for var; do

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

  546.     done

  547. }

  548. 

  549. sanitize_var_name(){

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

  551. }

  552. 

  553. set_safe(){

  554.     var=$1

  555.     shift

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

  557. }

  558. 

  559. get_safe(){

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

  561. }

  562. 

  563. pushvar(){

  564.     for pvar in $*; do

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

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

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

  568.     done

  569. }

  570. 

  571. popvar(){

  572.     for pvar in $*; do

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

  574.         test $level = 0 && continue

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

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

  577.         eval ${pvar}_level=$level

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

  579.     done

  580. }

  581. 

  582. enable(){

  583.     set_all yes $*

  584. }

  585. 

  586. disable(){

  587.     set_all no $*

  588. }

  589. 

  590. enable_weak(){

  591.     set_weak yes $*

  592. }

  593. 

  594. disable_weak(){

  595.     set_weak no $*

  596. }

  597. 

  598. enable_safe(){

  599.     for var; do

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

  601.     done

  602. }

  603. 

  604. disable_safe(){

  605.     for var; do

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

  607.     done

  608. }

  609. 

  610. do_enable_deep(){

  611.     for var; do

  612.         enabled $var && continue

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

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

  615.         pushvar var sgs

  616.         enable_deep $sel

  617.         popvar sgs

  618.         enable_deep_weak $sgs

  619.         popvar var

  620.     done

  621. }

  622. 

  623. enable_deep(){

  624.     do_enable_deep $*

  625.     enable $*

  626. }

  627. 

  628. enable_deep_weak(){

  629.     for var; do

  630.         disabled $var && continue

  631.         pushvar var

  632.         do_enable_deep $var

  633.         popvar var

  634.         enable_weak $var

  635.     done

  636. }

  637. 

  638. enabled(){

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

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

  641. }

  642. 

  643. disabled(){

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

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

  646. }

  647. 

  648. enabled_all(){

  649.     for opt; do

  650.         enabled $opt || return 1

  651.     done

  652. }

  653. 

  654. disabled_all(){

  655.     for opt; do

  656.         disabled $opt || return 1

  657.     done

  658. }

  659. 

  660. enabled_any(){

  661.     for opt; do

  662.         enabled $opt && return 0

  663.     done

  664. }

  665. 

  666. disabled_any(){

  667.     for opt; do

  668.         disabled $opt && return 0

  669.     done

  670.     return 1

  671. }

  672. 

  673. set_default(){

  674.     for opt; do

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

  676.     done

  677. }

  678. 

  679. is_in(){

  680.     value=$1

  681.     shift

  682.     for var in $*; do

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

  684.     done

  685.     return 1

  686. }

  687. 

  688. do_check_deps(){

  689.     for cfg; do

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

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

  692.         disabled ${cfg}_checking && continue

  693.         enable ${cfg}_checking

  694.         append allopts $cfg

  695. 

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

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

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

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

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

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

  702. 

  703.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  705.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  706. 

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

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

  709.         enabled_all  $dep_all || disable $cfg

  710.         enabled_any  $dep_any || disable $cfg

  711.         disabled_any $dep_sel && disable $cfg

  712. 

  713.         if enabled $cfg; then

  714.             enable_deep $dep_sel

  715.             enable_deep_weak $dep_sgs

  716.         fi

  717. 

  718.         disable ${cfg}_checking

  719.     done

  720. }

  721. 

  722. check_deps(){

  723.     unset allopts

  724. 

  725.     do_check_deps "$@"

  726. 

  727.     for cfg in $allopts; do

  728.         enabled $cfg || continue

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

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

  731.     done

  732. }

  733. 

  734. print_config(){

  735.     pfx=$1

  736.     files=$2

  737.     shift 2

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

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

  740.         {

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

  742.             v = \$2;

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

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

  745.             for (f in files) {

  746.                 file = files[f];

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

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

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

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

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

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

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

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

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

  756.                     yesno = \$2;

  757.                     c2 = tolower(c);

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

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

  760.                 }

  761.             }

  762.         }"

  763. }

  764. 

  765. print_enabled(){

  766.     suf=$1

  767.     shift

  768.     for v; do

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

  770.     done

  771. }

  772. 

  773. append(){

  774.     var=$1

  775.     shift

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

  777. }

  778. 

  779. prepend(){

  780.     var=$1

  781.     shift

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

  783. }

  784. 

  785. unique(){

  786.     var=$1

  787.     uniq_list=""

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

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

  790.     done

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

  792. }

  793. 

  794. add_cppflags(){

  795.     append CPPFLAGS "$@"

  796. }

  797. 

  798. add_cflags(){

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

  800. }

  801. 

  802. add_cxxflags(){

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

  804. }

  805. 

  806. add_asflags(){

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

  808. }

  809. 

  810. add_objcflags(){

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

  812. }

  813. 

  814. add_ldflags(){

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

  816. }

  817. 

  818. add_ldexeflags(){

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

  820. }

  821. 

  822. add_ldlibflags(){

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

  824. }

  825. 

  826. add_stripflags(){

  827.     append ASMSTRIPFLAGS "$@"

  828. }

  829. 

  830. add_extralibs(){

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

  832. }

  833. 

  834. add_host_cppflags(){

  835.     append host_cppflags "$@"

  836. }

  837. 

  838. add_host_cflags(){

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

  840. }

  841. 

  842. add_host_ldflags(){

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

  844. }

  845. 

  846. add_compat(){

  847.     append compat_objs $1

  848.     shift

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

  850. }

  851. 

  852. check_cmd(){

  853.     log "$@"

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

  855. }

  856. 

  857. check_stat(){

  858.     log check_stat "$@"

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

  860. }

  861. 

  862. cc_o(){

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

  864. }

  865. 

  866. cc_e(){

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

  868. }

  869. 

  870. check_cc(){

  871.     log check_cc "$@"

  872.     cat > $TMPC

  873.     log_file $TMPC

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

  875. }

  876. 

  877. check_cxx(){

  878.     log check_cxx "$@"

  879.     cat > $TMPCPP

  880.     log_file $TMPCPP

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

  882. }

  883. 

  884. check_objcc(){

  885.     log check_objcc "$@"

  886.     cat > $TMPM

  887.     log_file $TMPM

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

  889. }

  890. 

  891. check_cpp(){

  892.     log check_cpp "$@"

  893.     cat > $TMPC

  894.     log_file $TMPC

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

  896. }

  897. 

  898. as_o(){

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

  900. }

  901. 

  902. check_as(){

  903.     log check_as "$@"

  904.     cat > $TMPS

  905.     log_file $TMPS

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

  907. }

  908. 

  909. check_inline_asm(){

  910.     log check_inline_asm "$@"

  911.     name="$1"

  912.     code="$2"

  913.     shift 2

  914.     disable $name

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

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

  917. EOF

  918. }

  919. 

  920. check_insn(){

  921.     log check_insn "$@"

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

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

  924. }

  925. 

  926. check_yasm(){

  927.     log check_yasm "$@"

  928.     echo "$1" > $TMPS

  929.     log_file $TMPS

  930.     shift 1

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

  932. }

  933. 

  934. ld_o(){

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

  936. }

  937. 

  938. check_ld(){

  939.     log check_ld "$@"

  940.     type=$1

  941.     shift 1

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

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

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

  945.     flags=$($ldflags_filter $flags)

  946.     libs=$($ldflags_filter $libs)

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

  948. }

  949. 

  950. print_include(){

  951.     hdr=$1

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

  953.         echo "#include $hdr"    ||

  954.         echo "#include <$hdr>"

  955. }

  956. 

  957. check_code(){

  958.     log check_code "$@"

  959.     check=$1

  960.     headers=$2

  961.     code=$3

  962.     shift 3

  963.     {

  964.         for hdr in $headers; do

  965.             print_include $hdr

  966.         done

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

  968.     } | check_$check "$@"

  969. }

  970. 

  971. check_cppflags(){

  972.     log check_cppflags "$@"

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

  974. int x;

  975. EOF

  976. }

  977. 

  978. test_cflags(){

  979.     log test_cflags "$@"

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

  981.     check_cc "$@" <<EOF

  982. int x;

  983. EOF

  984. }

  985. 

  986. check_cflags(){

  987.     log check_cflags "$@"

  988.     test_cflags "$@" && add_cflags "$@"

  989. }

  990. 

  991. check_cxxflags(){

  992.     log check_cxxflags "$@"

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

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

  995. int x;

  996. EOF

  997. }

  998. 

  999. test_objcflags(){

  1000.     log test_cflags "$@"

  1001.     set -- $($cflags_filter "$@")

  1002.     check_objcc "$@" <<EOF

  1003. int x;

  1004. EOF

  1005. }

  1006. 

  1007. check_objcflags(){

  1008.     log check_cflags "$@"

  1009.     test_objcflags "$@" && add_objcflags "$@"

  1010. }

  1011. 

  1012. test_ldflags(){

  1013.     log test_ldflags "$@"

  1014.     check_ld "cc" "$@" <<EOF

  1015. int main(void){ return 0; }

  1016. EOF

  1017. }

  1018. 

  1019. check_ldflags(){

  1020.     log check_ldflags "$@"

  1021.     test_ldflags "$@" && add_ldflags "$@"

  1022. }

  1023. 

  1024. test_stripflags(){

  1025.     log test_stripflags "$@"

  1026.     # call check_cc to get a fresh TMPO

  1027.     check_cc <<EOF

  1028. int main(void) { return 0; }

  1029. EOF

  1030.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1031. }

  1032. 

  1033. check_stripflags(){

  1034.     log check_stripflags "$@"

  1035.     test_stripflags "$@" && add_stripflags "$@"

  1036. }

  1037. 

  1038. check_header(){

  1039.     log check_header "$@"

  1040.     header=$1

  1041.     shift

  1042.     disable_safe $header

  1043.     check_cpp "$@" <<EOF && enable_safe $header

  1044. #include <$header>

  1045. int x;

  1046. EOF

  1047. }

  1048. 

  1049. check_header_objcc(){

  1050.     log check_header_objcc "$@"

  1051.     rm -f -- "$TMPO"

  1052.     header=$1

  1053.     shift

  1054.     disable_safe $header

  1055.     {

  1056.        echo "#include <$header>"

  1057.        echo "int main(void) { return 0; }"

  1058.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1059. }

  1060. 

  1061. check_func(){

  1062.     log check_func "$@"

  1063.     func=$1

  1064.     shift

  1065.     disable $func

  1066.     check_ld "cc" "$@" <<EOF && enable $func

  1067. extern int $func();

  1068. int main(void){ $func(); }

  1069. EOF

  1070. }

  1071. 

  1072. check_complexfunc(){

  1073.     log check_complexfunc "$@"

  1074.     func=$1

  1075.     narg=$2

  1076.     shift 2

  1077.     test $narg = 2 && args="f, g" || args="f * I"

  1078.     disable $func

  1079.     check_ld "cc" "$@" <<EOF && enable $func

  1080. #include <complex.h>

  1081. #include <math.h>

  1082. float foo(complex float f, complex float g) { return $func($args); }

  1083. int main(void){ return (int) foo; }

  1084. EOF

  1085. }

  1086. 

  1087. check_mathfunc(){

  1088.     log check_mathfunc "$@"

  1089.     func=$1

  1090.     narg=$2

  1091.     shift 2

  1092.     test $narg = 2 && args="f, g" || args="f"

  1093.     disable $func

  1094.     check_ld "cc" "$@" <<EOF && enable $func

  1095. #include <math.h>

  1096. float foo(float f, float g) { return $func($args); }

  1097. int main(void){ return (int) foo; }

  1098. EOF

  1099. }

  1100. 

  1101. check_func_headers(){

  1102.     log check_func_headers "$@"

  1103.     headers=$1

  1104.     funcs=$2

  1105.     shift 2

  1106.     {

  1107.         for hdr in $headers; do

  1108.             print_include $hdr

  1109.         done

  1110.         for func in $funcs; do

  1111.             echo "long check_$func(void) { return (long) $func; }"

  1112.         done

  1113.         echo "int main(void) { return 0; }"

  1114.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1115. }

  1116. 

  1117. check_class_headers_cpp(){

  1118.     log check_class_headers_cpp "$@"

  1119.     headers=$1

  1120.     classes=$2

  1121.     shift 2

  1122.     {

  1123.         for hdr in $headers; do

  1124.             echo "#include <$hdr>"

  1125.         done

  1126.         echo "int main(void) { "

  1127.         i=1

  1128.         for class in $classes; do

  1129.             echo "$class obj$i;"

  1130.             i=$(expr $i + 1)

  1131.         done

  1132.         echo "return 0; }"

  1133.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1134. }

  1135. 

  1136. check_cpp_condition(){

  1137.     log check_cpp_condition "$@"

  1138.     header=$1

  1139.     condition=$2

  1140.     shift 2

  1141.     check_cpp "$@" <<EOF

  1142. #include <$header>

  1143. #if !($condition)

  1144. #error "unsatisfied condition: $condition"

  1145. #endif

  1146. EOF

  1147. }

  1148. 

  1149. check_lib(){

  1150.     log check_lib "$@"

  1151.     header="$1"

  1152.     func="$2"

  1153.     shift 2

  1154.     check_header $header && check_func $func "$@" && add_extralibs "$@"

  1155. }

  1156. 

  1157. check_lib2(){

  1158.     log check_lib2 "$@"

  1159.     headers="$1"

  1160.     funcs="$2"

  1161.     shift 2

  1162.     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"

  1163. }

  1164. 

  1165. check_lib_cpp(){

  1166.     log check_lib_cpp "$@"

  1167.     headers="$1"

  1168.     classes="$2"

  1169.     shift 2

  1170.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1171. }

  1172. 

  1173. check_pkg_config(){

  1174.     log check_pkg_config "$@"

  1175.     pkgandversion="$1"

  1176.     pkg="${1%% *}"

  1177.     headers="$2"

  1178.     funcs="$3"

  1179.     shift 3

  1180.     check_cmd $pkg_config --exists --print-errors $pkgandversion || return

  1181.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1182.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1183.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1184.         set_safe "${pkg}_cflags" $pkg_cflags   &&

  1185.         set_safe "${pkg}_libs"   $pkg_libs

  1186. }

  1187. 

  1188. check_exec(){

  1189.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1190. }

  1191. 

  1192. check_exec_crash(){

  1193.     code=$(cat)

  1194. 

  1195.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1196.     # are safe but may not be available everywhere.  Thus we use

  1197.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1198.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1199.     # is not defined by standard C so it is used conditionally.

  1200. 

  1201.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1202. #include <signal.h>

  1203. static void sighandler(int sig){

  1204.     raise(SIGTERM);

  1205. }

  1206. int foo(void){

  1207.     $code

  1208. }

  1209. int (*func_ptr)(void) = foo;

  1210. int main(void){

  1211.     signal(SIGILL, sighandler);

  1212.     signal(SIGFPE, sighandler);

  1213.     signal(SIGSEGV, sighandler);

  1214. #ifdef SIGBUS

  1215.     signal(SIGBUS, sighandler);

  1216. #endif

  1217.     return func_ptr();

  1218. }

  1219. EOF

  1220. }

  1221. 

  1222. check_type(){

  1223.     log check_type "$@"

  1224.     headers=$1

  1225.     type=$2

  1226.     shift 2

  1227.     disable_safe "$type"

  1228.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1229. }

  1230. 

  1231. check_struct(){

  1232.     log check_struct "$@"

  1233.     headers=$1

  1234.     struct=$2

  1235.     member=$3

  1236.     shift 3

  1237.     disable_safe "${struct}_${member}"

  1238.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1239.         enable_safe "${struct}_${member}"

  1240. }

  1241. 

  1242. check_builtin(){

  1243.     log check_builtin "$@"

  1244.     name=$1

  1245.     headers=$2

  1246.     builtin=$3

  1247.     shift 3

  1248.     disable "$name"

  1249.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1250. }

  1251. 

  1252. check_compile_assert(){

  1253.     log check_compile_assert "$@"

  1254.     name=$1

  1255.     headers=$2

  1256.     condition=$3

  1257.     shift 3

  1258.     disable "$name"

  1259.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1260. }

  1261. 

  1262. require(){

  1263.     name="$1"

  1264.     header="$2"

  1265.     func="$3"

  1266.     shift 3

  1267.     check_lib $header $func "$@" || die "ERROR: $name not found"

  1268. }

  1269. 

  1270. require2(){

  1271.     name="$1"

  1272.     headers="$2"

  1273.     func="$3"

  1274.     shift 3

  1275.     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"

  1276. }

  1277. 

  1278. require_cpp(){

  1279.     name="$1"

  1280.     headers="$2"

  1281.     classes="$3"

  1282.     shift 3

  1283.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1284. }

  1285. 

  1286. use_pkg_config(){

  1287.     pkg="$1"

  1288.     check_pkg_config "$@" || return 1

  1289.     add_cflags    $(get_safe "${pkg}_cflags")

  1290.     add_extralibs $(get_safe "${pkg}_libs")

  1291. }

  1292. 

  1293. require_pkg_config(){

  1294.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1295. }

  1296. 

  1297. require_libfreetype(){

  1298.     log require_libfreetype "$@"

  1299.     pkg="freetype2"

  1300.     check_cmd $pkg_config --exists --print-errors $pkg \

  1301.       || die "ERROR: $pkg not found"

  1302.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1303.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1304.     {

  1305.         echo "#include <ft2build.h>"

  1306.         echo "#include FT_FREETYPE_H"

  1307.         echo "long check_func(void) { return (long) FT_Init_FreeType; }"

  1308.         echo "int main(void) { return 0; }"

  1309.     } | check_ld "cc" $pkg_cflags $pkg_libs \

  1310.       && set_safe "${pkg}_cflags" $pkg_cflags \

  1311.       && set_safe "${pkg}_libs"   $pkg_libs \

  1312.       || die "ERROR: $pkg not found"

  1313.     add_cflags    $(get_safe "${pkg}_cflags")

  1314.     add_extralibs $(get_safe "${pkg}_libs")

  1315. }

  1316. 

  1317. hostcc_e(){

  1318.     eval printf '%s\\n' $HOSTCC_E

  1319. }

  1320. 

  1321. hostcc_o(){

  1322.     eval printf '%s\\n' $HOSTCC_O

  1323. }

  1324. 

  1325. check_host_cc(){

  1326.     log check_host_cc "$@"

  1327.     cat > $TMPC

  1328.     log_file $TMPC

  1329.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1330. }

  1331. 

  1332. check_host_cpp(){

  1333.     log check_host_cpp "$@"

  1334.     cat > $TMPC

  1335.     log_file $TMPC

  1336.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1337. }

  1338. 

  1339. check_host_cppflags(){

  1340.     log check_host_cppflags "$@"

  1341.     check_host_cc "$@" <<EOF && append host_cppflags "$@"

  1342. int x;

  1343. EOF

  1344. }

  1345. 

  1346. check_host_cflags(){

  1347.     log check_host_cflags "$@"

  1348.     set -- $($host_cflags_filter "$@")

  1349.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1350. int x;

  1351. EOF

  1352. }

  1353. 

  1354. check_host_cpp_condition(){

  1355.     log check_host_cpp_condition "$@"

  1356.     header=$1

  1357.     condition=$2

  1358.     shift 2

  1359.     check_host_cpp "$@" <<EOF

  1360. #include <$header>

  1361. #if !($condition)

  1362. #error "unsatisfied condition: $condition"

  1363. #endif

  1364. EOF

  1365. }

  1366. 

  1367. cp_if_changed(){

  1368.     cmp -s "$1" "$2" && echo "$2 is unchanged" && return

  1369.     mkdir -p "$(dirname $2)"

  1370.     $cp_f "$1" "$2"

  1371. }

  1372. 

  1373. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1374. # system-dependent things.

  1375. 

  1376. AVCODEC_COMPONENTS="

  1377.     bsfs

  1378.     decoders

  1379.     encoders

  1380.     hwaccels

  1381.     parsers

  1382. "

  1383. 

  1384. AVDEVICE_COMPONENTS="

  1385.     indevs

  1386.     outdevs

  1387. "

  1388. AVFILTER_COMPONENTS="

  1389.     filters

  1390. "

  1391. AVFORMAT_COMPONENTS="

  1392.     demuxers

  1393.     muxers

  1394.     protocols

  1395. "

  1396. 

  1397. AVRESAMPLE_COMPONENTS=""

  1398. AVUTIL_COMPONENTS=""

  1399. 

  1400. COMPONENT_LIST="

  1401.     $AVCODEC_COMPONENTS

  1402.     $AVDEVICE_COMPONENTS

  1403.     $AVFILTER_COMPONENTS

  1404.     $AVFORMAT_COMPONENTS

  1405.     $AVRESAMPLE_COMPONENTS

  1406.     $AVUTIL_COMPONENTS

  1407. "

  1408. 

  1409. EXAMPLE_LIST="

  1410.     avio_reading_example

  1411.     avio_dir_cmd_example

  1412.     decoding_encoding_example

  1413.     demuxing_decoding_example

  1414.     extract_mvs_example

  1415.     filter_audio_example

  1416.     filtering_audio_example

  1417.     filtering_video_example

  1418.     metadata_example

  1419.     muxing_example

  1420.     qsvdec_example

  1421.     remuxing_example

  1422.     resampling_audio_example

  1423.     scaling_video_example

  1424.     transcode_aac_example

  1425.     transcoding_example

  1426. "

  1427. 

  1428. EXTERNAL_LIBRARY_LIST="

  1429.     avisynth

  1430.     bzlib

  1431.     chromaprint

  1432.     crystalhd

  1433.     cuda

  1434.     decklink

  1435.     frei0r

  1436.     gcrypt

  1437.     gmp

  1438.     gnutls

  1439.     iconv

  1440.     jni

  1441.     ladspa

  1442.     libass

  1443.     libbluray

  1444.     libbs2b

  1445.     libcaca

  1446.     libcdio

  1447.     libcelt

  1448.     libdc1394

  1449.     libdcadec

  1450.     libfaac

  1451.     libfdk_aac

  1452.     libflite

  1453.     libfontconfig

  1454.     libfreetype

  1455.     libfribidi

  1456.     libgme

  1457.     libgsm

  1458.     libiec61883

  1459.     libilbc

  1460.     libkvazaar

  1461.     libmfx

  1462.     libmodplug

  1463.     libmp3lame

  1464.     libnut

  1465.     libopencore_amrnb

  1466.     libopencore_amrwb

  1467.     libopencv

  1468.     libopenh264

  1469.     libopenjpeg

  1470.     libopus

  1471.     libpulse

  1472.     librtmp

  1473.     librubberband

  1474.     libschroedinger

  1475.     libshine

  1476.     libsmbclient

  1477.     libsnappy

  1478.     libsoxr

  1479.     libspeex

  1480.     libssh

  1481.     libtesseract

  1482.     libtheora

  1483.     libtwolame

  1484.     libutvideo

  1485.     libv4l2

  1486.     libvidstab

  1487.     libvo_amrwbenc

  1488.     libvorbis

  1489.     libvpx

  1490.     libwavpack

  1491.     libwebp

  1492.     libx264

  1493.     libx265

  1494.     libxavs

  1495.     libxcb

  1496.     libxcb_shm

  1497.     libxcb_shape

  1498.     libxcb_xfixes

  1499.     libxvid

  1500.     libzimg

  1501.     libzmq

  1502.     libzvbi

  1503.     lzma

  1504.     mmal

  1505.     netcdf

  1506.     nvenc

  1507.     openal

  1508.     opencl

  1509.     opengl

  1510.     openssl

  1511.     schannel

  1512.     sdl

  1513.     securetransport

  1514.     videotoolbox

  1515.     x11grab

  1516.     xlib

  1517.     zlib

  1518. "

  1519. 

  1520. DOCUMENT_LIST="

  1521.     doc

  1522.     htmlpages

  1523.     manpages

  1524.     podpages

  1525.     txtpages

  1526. "

  1527. 

  1528. FEATURE_LIST="

  1529.     ftrapv

  1530.     gray

  1531.     hardcoded_tables

  1532.     runtime_cpudetect

  1533.     safe_bitstream_reader

  1534.     shared

  1535.     small

  1536.     static

  1537.     swscale_alpha

  1538. "

  1539. 

  1540. HWACCEL_LIST="

  1541.     d3d11va

  1542.     dxva2

  1543.     vaapi

  1544.     vda

  1545.     vdpau

  1546.     videotoolbox_hwaccel

  1547.     xvmc

  1548. "

  1549. 

  1550. LIBRARY_LIST="

  1551.     avcodec

  1552.     avdevice

  1553.     avfilter

  1554.     avformat

  1555.     avresample

  1556.     avutil

  1557.     postproc

  1558.     swresample

  1559.     swscale

  1560. "

  1561. 

  1562. LICENSE_LIST="

  1563.     gpl

  1564.     nonfree

  1565.     version3

  1566. "

  1567. 

  1568. PROGRAM_LIST="

  1569.     ffplay

  1570.     ffprobe

  1571.     ffserver

  1572.     ffmpeg

  1573. "

  1574. 

  1575. SUBSYSTEM_LIST="

  1576.     dct

  1577.     dwt

  1578.     error_resilience

  1579.     faan

  1580.     fast_unaligned

  1581.     fft

  1582.     lsp

  1583.     lzo

  1584.     mdct

  1585.     pixelutils

  1586.     network

  1587.     rdft

  1588. "

  1589. 

  1590. CONFIG_LIST="

  1591.     $COMPONENT_LIST

  1592.     $DOCUMENT_LIST

  1593.     $EXAMPLE_LIST

  1594.     $EXTERNAL_LIBRARY_LIST

  1595.     $FEATURE_LIST

  1596.     $HWACCEL_LIST

  1597.     $LICENSE_LIST

  1598.     $LIBRARY_LIST

  1599.     $PROGRAM_LIST

  1600.     $SUBSYSTEM_LIST

  1601.     fontconfig

  1602.     incompatible_libav_abi

  1603.     memalign_hack

  1604.     memory_poisoning

  1605.     neon_clobber_test

  1606.     pic

  1607.     pod2man

  1608.     raise_major

  1609.     thumb

  1610.     valgrind_backtrace

  1611.     xmm_clobber_test

  1612. "

  1613. 

  1614. THREADS_LIST="

  1615.     pthreads

  1616.     os2threads

  1617.     w32threads

  1618. "

  1619. 

  1620. ATOMICS_LIST="

  1621.     atomics_gcc

  1622.     atomics_suncc

  1623.     atomics_win32

  1624. "

  1625. 

  1626. ARCH_LIST="

  1627.     aarch64

  1628.     alpha

  1629.     arm

  1630.     avr32

  1631.     avr32_ap

  1632.     avr32_uc

  1633.     bfin

  1634.     ia64

  1635.     m68k

  1636.     mips

  1637.     mips64

  1638.     parisc

  1639.     ppc

  1640.     ppc64

  1641.     s390

  1642.     sh4

  1643.     sparc

  1644.     sparc64

  1645.     tilegx

  1646.     tilepro

  1647.     tomi

  1648.     x86

  1649.     x86_32

  1650.     x86_64

  1651. "

  1652. 

  1653. ARCH_EXT_LIST_ARM="

  1654.     armv5te

  1655.     armv6

  1656.     armv6t2

  1657.     armv8

  1658.     neon

  1659.     vfp

  1660.     vfpv3

  1661.     setend

  1662. "

  1663. 

  1664. ARCH_EXT_LIST_MIPS="

  1665.     mipsfpu

  1666.     mips32r2

  1667.     mips64r2

  1668.     mips32r6

  1669.     mips64r6

  1670.     mipsdsp

  1671.     mipsdspr2

  1672.     msa

  1673. "

  1674. 

  1675. ARCH_EXT_LIST_LOONGSON="

  1676.     loongson2

  1677.     loongson3

  1678.     mmi

  1679. "

  1680. 

  1681. ARCH_EXT_LIST_X86_SIMD="

  1682.     aesni

  1683.     amd3dnow

  1684.     amd3dnowext

  1685.     avx

  1686.     avx2

  1687.     fma3

  1688.     fma4

  1689.     mmx

  1690.     mmxext

  1691.     sse

  1692.     sse2

  1693.     sse3

  1694.     sse4

  1695.     sse42

  1696.     ssse3

  1697.     xop

  1698. "

  1699. 

  1700. ARCH_EXT_LIST_PPC="

  1701.     altivec

  1702.     dcbzl

  1703.     ldbrx

  1704.     power8

  1705.     ppc4xx

  1706.     vsx

  1707. "

  1708. 

  1709. ARCH_EXT_LIST_X86="

  1710.     $ARCH_EXT_LIST_X86_SIMD

  1711.     cpunop

  1712.     i686

  1713. "

  1714. 

  1715. ARCH_EXT_LIST="

  1716.     $ARCH_EXT_LIST_ARM

  1717.     $ARCH_EXT_LIST_PPC

  1718.     $ARCH_EXT_LIST_X86

  1719.     $ARCH_EXT_LIST_MIPS

  1720.     $ARCH_EXT_LIST_LOONGSON

  1721. "

  1722. 

  1723. ARCH_FEATURES="

  1724.     aligned_stack

  1725.     fast_64bit

  1726.     fast_clz

  1727.     fast_cmov

  1728.     local_aligned_8

  1729.     local_aligned_16

  1730.     local_aligned_32

  1731.     simd_align_16

  1732. "

  1733. 

  1734. BUILTIN_LIST="

  1735.     atomic_cas_ptr

  1736.     atomic_compare_exchange

  1737.     machine_rw_barrier

  1738.     MemoryBarrier

  1739.     mm_empty

  1740.     rdtsc

  1741.     sarestart

  1742.     sem_timedwait

  1743.     sync_val_compare_and_swap

  1744. "

  1745. HAVE_LIST_CMDLINE="

  1746.     inline_asm

  1747.     symver

  1748.     yasm

  1749. "

  1750. 

  1751. HAVE_LIST_PUB="

  1752.     bigendian

  1753.     fast_unaligned

  1754.     incompatible_libav_abi

  1755. "

  1756. 

  1757. HEADERS_LIST="

  1758.     alsa_asoundlib_h

  1759.     altivec_h

  1760.     arpa_inet_h

  1761.     asm_types_h

  1762.     cdio_paranoia_h

  1763.     cdio_paranoia_paranoia_h

  1764.     dispatch_dispatch_h

  1765.     dev_bktr_ioctl_bt848_h

  1766.     dev_bktr_ioctl_meteor_h

  1767.     dev_ic_bt8xx_h

  1768.     dev_video_bktr_ioctl_bt848_h

  1769.     dev_video_meteor_ioctl_meteor_h

  1770.     direct_h

  1771.     dirent_h

  1772.     dlfcn_h

  1773.     d3d11_h

  1774.     dxva_h

  1775.     ES2_gl_h

  1776.     gsm_h

  1777.     io_h

  1778.     mach_mach_time_h

  1779.     machine_ioctl_bt848_h

  1780.     machine_ioctl_meteor_h

  1781.     malloc_h

  1782.     opencv2_core_core_c_h

  1783.     openjpeg_2_1_openjpeg_h

  1784.     openjpeg_2_0_openjpeg_h

  1785.     openjpeg_1_5_openjpeg_h

  1786.     OpenGL_gl3_h

  1787.     poll_h

  1788.     sndio_h

  1789.     soundcard_h

  1790.     sys_mman_h

  1791.     sys_param_h

  1792.     sys_resource_h

  1793.     sys_select_h

  1794.     sys_soundcard_h

  1795.     sys_time_h

  1796.     sys_un_h

  1797.     sys_videoio_h

  1798.     termios_h

  1799.     udplite_h

  1800.     unistd_h

  1801.     valgrind_valgrind_h

  1802.     windows_h

  1803.     winsock2_h

  1804. "

  1805. 

  1806. INTRINSICS_LIST="

  1807.     intrinsics_neon

  1808. "

  1809. 

  1810. COMPLEX_FUNCS="

  1811.     cabs

  1812.     cexp

  1813. "

  1814. 

  1815. MATH_FUNCS="

  1816.     atanf

  1817.     atan2f

  1818.     cbrt

  1819.     cbrtf

  1820.     copysign

  1821.     cosf

  1822.     erf

  1823.     exp2

  1824.     exp2f

  1825.     expf

  1826.     hypot

  1827.     isfinite

  1828.     isinf

  1829.     isnan

  1830.     ldexpf

  1831.     llrint

  1832.     llrintf

  1833.     log2

  1834.     log2f

  1835.     log10f

  1836.     lrint

  1837.     lrintf

  1838.     powf

  1839.     rint

  1840.     round

  1841.     roundf

  1842.     sinf

  1843.     trunc

  1844.     truncf

  1845. "

  1846. 

  1847. SYSTEM_FUNCS="

  1848.     access

  1849.     aligned_malloc

  1850.     arc4random

  1851.     clock_gettime

  1852.     closesocket

  1853.     CommandLineToArgvW

  1854.     CoTaskMemFree

  1855.     CryptGenRandom

  1856.     dlopen

  1857.     fcntl

  1858.     flt_lim

  1859.     fork

  1860.     getaddrinfo

  1861.     gethrtime

  1862.     getopt

  1863.     GetProcessAffinityMask

  1864.     GetProcessMemoryInfo

  1865.     GetProcessTimes

  1866.     getrusage

  1867.     GetSystemTimeAsFileTime

  1868.     gettimeofday

  1869.     glob

  1870.     glXGetProcAddress

  1871.     gmtime_r

  1872.     inet_aton

  1873.     isatty

  1874.     jack_port_get_latency_range

  1875.     kbhit

  1876.     localtime_r

  1877.     lstat

  1878.     lzo1x_999_compress

  1879.     mach_absolute_time

  1880.     MapViewOfFile

  1881.     memalign

  1882.     mkstemp

  1883.     mmap

  1884.     mprotect

  1885.     nanosleep

  1886.     PeekNamedPipe

  1887.     posix_memalign

  1888.     pthread_cancel

  1889.     sched_getaffinity

  1890.     SetConsoleTextAttribute

  1891.     SetConsoleCtrlHandler

  1892.     setmode

  1893.     setrlimit

  1894.     Sleep

  1895.     strerror_r

  1896.     sysconf

  1897.     sysctl

  1898.     usleep

  1899.     UTGetOSTypeFromString

  1900.     VirtualAlloc

  1901.     wglGetProcAddress

  1902. "

  1903. 

  1904. TOOLCHAIN_FEATURES="

  1905.     as_dn_directive

  1906.     as_func

  1907.     as_object_arch

  1908.     asm_mod_q

  1909.     attribute_may_alias

  1910.     attribute_packed

  1911.     ebp_available

  1912.     ebx_available

  1913.     gnu_as

  1914.     gnu_windres

  1915.     ibm_asm

  1916.     inline_asm_direct_symbol_refs

  1917.     inline_asm_labels

  1918.     inline_asm_nonlocal_labels

  1919.     pragma_deprecated

  1920.     rsync_contimeout

  1921.     symver_asm_label

  1922.     symver_gnu_asm

  1923.     vfp_args

  1924.     xform_asm

  1925.     xmm_clobbers

  1926. "

  1927. 

  1928. TYPES_LIST="

  1929.     CONDITION_VARIABLE_Ptr

  1930.     socklen_t

  1931.     struct_addrinfo

  1932.     struct_group_source_req

  1933.     struct_ip_mreq_source

  1934.     struct_ipv6_mreq

  1935.     struct_pollfd

  1936.     struct_rusage_ru_maxrss

  1937.     struct_sctp_event_subscribe

  1938.     struct_sockaddr_in6

  1939.     struct_sockaddr_sa_len

  1940.     struct_sockaddr_storage

  1941.     struct_stat_st_mtim_tv_nsec

  1942.     struct_v4l2_frmivalenum_discrete

  1943. "

  1944. 

  1945. HAVE_LIST="

  1946.     $ARCH_EXT_LIST

  1947.     $(add_suffix _external $ARCH_EXT_LIST)

  1948.     $(add_suffix _inline   $ARCH_EXT_LIST)

  1949.     $ARCH_FEATURES

  1950.     $ATOMICS_LIST

  1951.     $BUILTIN_LIST

  1952.     $COMPLEX_FUNCS

  1953.     $HAVE_LIST_CMDLINE

  1954.     $HAVE_LIST_PUB

  1955.     $HEADERS_LIST

  1956.     $INTRINSICS_LIST

  1957.     $MATH_FUNCS

  1958.     $SYSTEM_FUNCS

  1959.     $THREADS_LIST

  1960.     $TOOLCHAIN_FEATURES

  1961.     $TYPES_LIST

  1962.     atomics_native

  1963.     dos_paths

  1964.     dxva2_lib

  1965.     dxva2api_cobj

  1966.     libc_msvcrt

  1967.     libdc1394_1

  1968.     libdc1394_2

  1969.     makeinfo

  1970.     makeinfo_html

  1971.     perl

  1972.     pod2man

  1973.     sdl

  1974.     section_data_rel_ro

  1975.     texi2html

  1976.     threads

  1977.     vaapi_x11

  1978.     vdpau_x11

  1979.     winrt

  1980.     xlib

  1981. "

  1982. 

  1983. # options emitted with CONFIG_ prefix but not available on the command line

  1984. CONFIG_EXTRA="

  1985.     aandcttables

  1986.     ac3dsp

  1987.     audio_frame_queue

  1988.     audiodsp

  1989.     blockdsp

  1990.     bswapdsp

  1991.     cabac

  1992.     dirac_parse

  1993.     dvprofile

  1994.     exif

  1995.     faandct

  1996.     faanidct

  1997.     fdctdsp

  1998.     flacdsp

  1999.     fmtconvert

  2000.     frame_thread_encoder

  2001.     g722dsp

  2002.     golomb

  2003.     gplv3

  2004.     h263dsp

  2005.     h264chroma

  2006.     h264dsp

  2007.     h264pred

  2008.     h264qpel

  2009.     hpeldsp

  2010.     huffman

  2011.     huffyuvdsp

  2012.     huffyuvencdsp

  2013.     idctdsp

  2014.     iirfilter

  2015.     imdct15

  2016.     intrax8

  2017.     iso_media

  2018.     ividsp

  2019.     jpegtables

  2020.     lgplv3

  2021.     libx262

  2022.     llauddsp

  2023.     llviddsp

  2024.     lpc

  2025.     lzf

  2026.     me_cmp

  2027.     mpeg_er

  2028.     mpegaudio

  2029.     mpegaudiodsp

  2030.     mpegvideo

  2031.     mpegvideoenc

  2032.     mss34dsp

  2033.     pixblockdsp

  2034.     qpeldsp

  2035.     qsv

  2036.     qsvdec

  2037.     qsvenc

  2038.     rangecoder

  2039.     riffdec

  2040.     riffenc

  2041.     rtpdec

  2042.     rtpenc_chain

  2043.     rv34dsp

  2044.     sinewin

  2045.     snappy

  2046.     startcode

  2047.     texturedsp

  2048.     texturedspenc

  2049.     tpeldsp

  2050.     vc1dsp

  2051.     videodsp

  2052.     vp3dsp

  2053.     vp56dsp

  2054.     vp8dsp

  2055.     wma_freqs

  2056.     wmv2dsp

  2057. "

  2058. 

  2059. CMDLINE_SELECT="

  2060.     $ARCH_EXT_LIST

  2061.     $CONFIG_LIST

  2062.     $HAVE_LIST_CMDLINE

  2063.     $THREADS_LIST

  2064.     asm

  2065.     cross_compile

  2066.     debug

  2067.     extra_warnings

  2068.     logging

  2069.     lto

  2070.     optimizations

  2071.     rpath

  2072.     stripping

  2073. "

  2074. 

  2075. PATHS_LIST="

  2076.     bindir

  2077.     datadir

  2078.     docdir

  2079.     incdir

  2080.     libdir

  2081.     mandir

  2082.     pkgconfigdir

  2083.     prefix

  2084.     shlibdir

  2085.     install_name_dir

  2086. "

  2087. 

  2088. CMDLINE_SET="

  2089.     $PATHS_LIST

  2090.     ar

  2091.     arch

  2092.     as

  2093.     assert_level

  2094.     build_suffix

  2095.     cc

  2096.     objcc

  2097.     cpu

  2098.     cross_prefix

  2099.     custom_allocator

  2100.     cxx

  2101.     dep_cc

  2102.     doxygen

  2103.     env

  2104.     extra_version

  2105.     gas

  2106.     host_cc

  2107.     host_cflags

  2108.     host_ld

  2109.     host_ldflags

  2110.     host_libs

  2111.     host_os

  2112.     install

  2113.     ld

  2114.     logfile

  2115.     malloc_prefix

  2116.     nm

  2117.     optflags

  2118.     pkg_config

  2119.     pkg_config_flags

  2120.     progs_suffix

  2121.     random_seed

  2122.     ranlib

  2123.     samples

  2124.     strip

  2125.     sws_max_filter_size

  2126.     sysinclude

  2127.     sysroot

  2128.     target_exec

  2129.     target_os

  2130.     target_path

  2131.     target_samples

  2132.     tempprefix

  2133.     toolchain

  2134.     valgrind

  2135.     yasmexe

  2136. "

  2137. 

  2138. CMDLINE_APPEND="

  2139.     extra_cflags

  2140.     extra_cxxflags

  2141.     extra_objcflags

  2142.     host_cppflags

  2143. "

  2144. 

  2145. # code dependency declarations

  2146. 

  2147. # architecture extensions

  2148. 

  2149. armv5te_deps="arm"

  2150. armv6_deps="arm"

  2151. armv6t2_deps="arm"

  2152. armv8_deps="aarch64"

  2153. neon_deps_any="aarch64 arm"

  2154. intrinsics_neon_deps="neon"

  2155. vfp_deps_any="aarch64 arm"

  2156. vfpv3_deps="vfp"

  2157. setend_deps="arm"

  2158. 

  2159. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2160. 

  2161. mipsfpu_deps="mips"

  2162. mipsdsp_deps="mips"

  2163. mipsdspr2_deps="mips"

  2164. mips32r2_deps="mips"

  2165. mips32r6_deps="mips"

  2166. mips64r2_deps="mips"

  2167. mips64r6_deps="mips"

  2168. msa_deps="mips"

  2169. mmi_deps="mips"

  2170. 

  2171. altivec_deps="ppc"

  2172. dcbzl_deps="ppc"

  2173. ldbrx_deps="ppc"

  2174. ppc4xx_deps="ppc"

  2175. vsx_deps="altivec"

  2176. power8_deps="vsx"

  2177. 

  2178. cpunop_deps="i686"

  2179. x86_64_select="i686"

  2180. x86_64_suggest="fast_cmov"

  2181. 

  2182. amd3dnow_deps="mmx"

  2183. amd3dnowext_deps="amd3dnow"

  2184. i686_deps="x86"

  2185. mmx_deps="x86"

  2186. mmxext_deps="mmx"

  2187. sse_deps="mmxext"

  2188. sse2_deps="sse"

  2189. sse3_deps="sse2"

  2190. ssse3_deps="sse3"

  2191. sse4_deps="ssse3"

  2192. sse42_deps="sse4"

  2193. aesni_deps="sse42"

  2194. avx_deps="sse42"

  2195. xop_deps="avx"

  2196. fma3_deps="avx"

  2197. fma4_deps="avx"

  2198. avx2_deps="avx"

  2199. 

  2200. mmx_external_deps="yasm"

  2201. mmx_inline_deps="inline_asm"

  2202. mmx_suggest="mmx_external mmx_inline"

  2203. 

  2204. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2205.     eval dep=\$${ext}_deps

  2206.     eval ${ext}_external_deps='"${dep}_external"'

  2207.     eval ${ext}_inline_deps='"${dep}_inline"'

  2208.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2209. done

  2210. 

  2211. aligned_stack_if_any="aarch64 ppc x86"

  2212. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2213. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2214. fast_unaligned_if_any="aarch64 ppc x86"

  2215. simd_align_16_if_any="altivec neon sse"

  2216. 

  2217. # system capabilities

  2218. symver_if_any="symver_asm_label symver_gnu_asm"

  2219. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2220. 

  2221. # threading support

  2222. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2223. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2224. atomics_win32_if="MemoryBarrier"

  2225. atomics_native_if_any="$ATOMICS_LIST"

  2226. w32threads_deps="atomics_native"

  2227. threads_if_any="$THREADS_LIST"

  2228. 

  2229. # subsystems

  2230. dct_select="rdft"

  2231. dirac_parse_select="golomb"

  2232. error_resilience_select="me_cmp"

  2233. faandct_deps="faan fdctdsp"

  2234. faanidct_deps="faan idctdsp"

  2235. h264dsp_select="startcode"

  2236. frame_thread_encoder_deps="encoders threads"

  2237. intrax8_select="error_resilience"

  2238. mdct_select="fft"

  2239. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2240. mpeg_er_select="error_resilience"

  2241. mpegaudio_select="mpegaudiodsp"

  2242. mpegaudiodsp_select="dct"

  2243. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2244. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2245. qsvdec_select="qsv"

  2246. qsvenc_select="qsv"

  2247. vc1dsp_select="h264chroma qpeldsp startcode"

  2248. rdft_select="fft"

  2249. 

  2250. # decoders / encoders

  2251. aac_decoder_select="imdct15 mdct sinewin"

  2252. aac_fixed_decoder_select="mdct sinewin"

  2253. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2254. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2255. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2256. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2257. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2258. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2259. adpcm_g722_decoder_select="g722dsp"

  2260. adpcm_g722_encoder_select="g722dsp"

  2261. aic_decoder_select="golomb idctdsp"

  2262. alac_encoder_select="lpc"

  2263. als_decoder_select="bswapdsp"

  2264. amrnb_decoder_select="lsp"

  2265. amrwb_decoder_select="lsp"

  2266. amv_decoder_select="sp5x_decoder exif"

  2267. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2268. ape_decoder_select="bswapdsp llauddsp"

  2269. apng_decoder_select="zlib"

  2270. apng_encoder_select="huffyuvencdsp zlib"

  2271. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2272. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2273. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2274. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2275. atrac1_decoder_select="mdct sinewin"

  2276. atrac3_decoder_select="mdct"

  2277. atrac3p_decoder_select="mdct sinewin"

  2278. avrn_decoder_select="exif jpegtables"

  2279. bink_decoder_select="blockdsp hpeldsp"

  2280. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2281. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2282. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2283. cllc_decoder_select="bswapdsp"

  2284. comfortnoise_encoder_select="lpc"

  2285. cook_decoder_select="audiodsp mdct sinewin"

  2286. cscd_decoder_select="lzo"

  2287. cscd_decoder_suggest="zlib"

  2288. dca_decoder_select="mdct"

  2289. dds_decoder_select="texturedsp"

  2290. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2291. dnxhd_decoder_select="blockdsp idctdsp"

  2292. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2293. dvvideo_decoder_select="dvprofile idctdsp"

  2294. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2295. dxa_decoder_select="zlib"

  2296. dxv_decoder_select="lzf texturedsp"

  2297. eac3_decoder_select="ac3_decoder"

  2298. eac3_encoder_select="ac3_encoder"

  2299. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2300. eatgq_decoder_select="aandcttables"

  2301. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2302. exr_decoder_select="zlib"

  2303. ffv1_decoder_select="golomb rangecoder"

  2304. ffv1_encoder_select="rangecoder"

  2305. ffvhuff_decoder_select="huffyuv_decoder"

  2306. ffvhuff_encoder_select="huffyuv_encoder"

  2307. fic_decoder_select="golomb"

  2308. flac_decoder_select="flacdsp golomb"

  2309. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2310. flashsv2_decoder_select="zlib"

  2311. flashsv2_encoder_select="zlib"

  2312. flashsv_decoder_select="zlib"

  2313. flashsv_encoder_select="zlib"

  2314. flv_decoder_select="h263_decoder"

  2315. flv_encoder_select="h263_encoder"

  2316. fourxm_decoder_select="blockdsp bswapdsp"

  2317. fraps_decoder_select="bswapdsp huffman"

  2318. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2319. g729_decoder_select="audiodsp"

  2320. h261_decoder_select="mpegvideo"

  2321. h261_encoder_select="aandcttables mpegvideoenc"

  2322. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2323. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2324. h263i_decoder_select="h263_decoder"

  2325. h263p_decoder_select="h263_decoder"

  2326. h263p_encoder_select="h263_encoder"

  2327. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"

  2328. h264_decoder_suggest="error_resilience"

  2329. h264_qsv_decoder_deps="libmfx"

  2330. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2331. h264_qsv_encoder_deps="libmfx"

  2332. h264_qsv_encoder_select="qsvenc"

  2333. hap_decoder_select="snappy texturedsp"

  2334. hap_encoder_deps="libsnappy"

  2335. hap_encoder_select="texturedspenc"

  2336. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2337. hevc_qsv_decoder_deps="libmfx"

  2338. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2339. hevc_qsv_encoder_deps="libmfx"

  2340. hevc_qsv_encoder_select="qsvenc"

  2341. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2342. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2343. iac_decoder_select="imc_decoder"

  2344. imc_decoder_select="bswapdsp fft mdct sinewin"

  2345. indeo3_decoder_select="hpeldsp"

  2346. indeo4_decoder_select="ividsp"

  2347. indeo5_decoder_select="ividsp"

  2348. interplay_video_decoder_select="hpeldsp"

  2349. jpegls_decoder_select="golomb mjpeg_decoder"

  2350. jpegls_encoder_select="golomb"

  2351. jv_decoder_select="blockdsp"

  2352. lagarith_decoder_select="huffyuvdsp"

  2353. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2354. loco_decoder_select="golomb"

  2355. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2356. metasound_decoder_select="lsp mdct sinewin"

  2357. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2358. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2359. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2360. mjpegb_decoder_select="mjpeg_decoder"

  2361. mlp_decoder_select="mlp_parser"

  2362. motionpixels_decoder_select="bswapdsp"

  2363. mp1_decoder_select="mpegaudio"

  2364. mp1float_decoder_select="mpegaudio"

  2365. mp2_decoder_select="mpegaudio"

  2366. mp2float_decoder_select="mpegaudio"

  2367. mp3_decoder_select="mpegaudio"

  2368. mp3adu_decoder_select="mpegaudio"

  2369. mp3adufloat_decoder_select="mpegaudio"

  2370. mp3float_decoder_select="mpegaudio"

  2371. mp3on4_decoder_select="mpegaudio"

  2372. mp3on4float_decoder_select="mpegaudio"

  2373. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2374. mpc8_decoder_select="mpegaudiodsp"

  2375. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2376. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2377. mpegvideo_decoder_select="mpegvideo"

  2378. mpeg1video_decoder_select="mpegvideo"

  2379. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2380. mpeg2video_decoder_select="mpegvideo"

  2381. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2382. mpeg2_qsv_decoder_deps="libmfx"

  2383. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2384. mpeg2_qsv_encoder_deps="libmfx"

  2385. mpeg2_qsv_encoder_select="qsvenc"

  2386. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2387. mpeg4_encoder_select="h263_encoder"

  2388. msa1_decoder_select="mss34dsp"

  2389. msmpeg4v1_decoder_select="h263_decoder"

  2390. msmpeg4v2_decoder_select="h263_decoder"

  2391. msmpeg4v2_encoder_select="h263_encoder"

  2392. msmpeg4v3_decoder_select="h263_decoder"

  2393. msmpeg4v3_encoder_select="h263_encoder"

  2394. mss2_decoder_select="vc1_decoder mpegvideo"

  2395. mts2_decoder_select="mss34dsp"

  2396. mxpeg_decoder_select="mjpeg_decoder"

  2397. nellymoser_decoder_select="mdct sinewin"

  2398. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2399. nuv_decoder_select="idctdsp lzo"

  2400. on2avc_decoder_select="mdct"

  2401. opus_decoder_deps="swresample"

  2402. opus_decoder_select="imdct15"

  2403. png_decoder_select="zlib"

  2404. png_encoder_select="huffyuvencdsp zlib"

  2405. prores_decoder_select="blockdsp idctdsp"

  2406. prores_encoder_select="fdctdsp"

  2407. qcelp_decoder_select="lsp"

  2408. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2409. ra_144_decoder_select="audiodsp"

  2410. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2411. ralf_decoder_select="golomb"

  2412. rawvideo_decoder_select="bswapdsp"

  2413. rscc_decoder_select="zlib"

  2414. rtjpeg_decoder_select="me_cmp"

  2415. rv10_decoder_select="h263_decoder"

  2416. rv10_encoder_select="h263_encoder"

  2417. rv20_decoder_select="h263_decoder"

  2418. rv20_encoder_select="h263_encoder"

  2419. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2420. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2421. screenpresso_decoder_select="zlib"

  2422. shorten_decoder_select="golomb"

  2423. sipr_decoder_select="lsp"

  2424. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2425. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2426. sonic_decoder_select="golomb rangecoder"

  2427. sonic_encoder_select="golomb rangecoder"

  2428. sonic_ls_encoder_select="golomb rangecoder"

  2429. sp5x_decoder_select="mjpeg_decoder"

  2430. svq1_decoder_select="hpeldsp"

  2431. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2432. svq3_decoder_select="h264_decoder hpeldsp tpeldsp"

  2433. svq3_decoder_suggest="zlib"

  2434. tak_decoder_select="audiodsp"

  2435. tdsc_decoder_select="zlib mjpeg_decoder"

  2436. theora_decoder_select="vp3_decoder"

  2437. thp_decoder_select="mjpeg_decoder"

  2438. tiff_decoder_suggest="zlib lzma"

  2439. tiff_encoder_suggest="zlib"

  2440. truehd_decoder_select="mlp_parser"

  2441. truemotion2_decoder_select="bswapdsp"

  2442. truespeech_decoder_select="bswapdsp"

  2443. tscc_decoder_select="zlib"

  2444. twinvq_decoder_select="mdct lsp sinewin"

  2445. txd_decoder_select="texturedsp"

  2446. utvideo_decoder_select="bswapdsp"

  2447. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2448. vble_decoder_select="huffyuvdsp"

  2449. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2450. vc1_qsv_decoder_deps="libmfx"

  2451. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2452. vc1image_decoder_select="vc1_decoder"

  2453. vorbis_decoder_select="mdct"

  2454. vorbis_encoder_select="mdct"

  2455. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2456. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2457. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2458. vp6a_decoder_select="vp6_decoder"

  2459. vp6f_decoder_select="vp6_decoder"

  2460. vp7_decoder_select="h264pred videodsp vp8dsp"

  2461. vp8_decoder_select="h264pred videodsp vp8dsp"

  2462. vp9_decoder_select="videodsp vp9_parser"

  2463. webp_decoder_select="vp8_decoder exif"

  2464. wmalossless_decoder_select="llauddsp"

  2465. wmapro_decoder_select="mdct sinewin wma_freqs"

  2466. wmav1_decoder_select="mdct sinewin wma_freqs"

  2467. wmav1_encoder_select="mdct sinewin wma_freqs"

  2468. wmav2_decoder_select="mdct sinewin wma_freqs"

  2469. wmav2_encoder_select="mdct sinewin wma_freqs"

  2470. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2471. wmv1_decoder_select="h263_decoder"

  2472. wmv1_encoder_select="h263_encoder"

  2473. wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2474. wmv2_encoder_select="h263_encoder wmv2dsp"

  2475. wmv3_decoder_select="vc1_decoder"

  2476. wmv3image_decoder_select="wmv3_decoder"

  2477. xma1_decoder_select="wmapro_decoder"

  2478. xma2_decoder_select="wmapro_decoder"

  2479. zerocodec_decoder_select="zlib"

  2480. zlib_decoder_select="zlib"

  2481. zlib_encoder_select="zlib"

  2482. zmbv_decoder_select="zlib"

  2483. zmbv_encoder_select="zlib"

  2484. 

  2485. # hardware accelerators

  2486. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2487. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2488. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2489. vaapi_deps="va_va_h"

  2490. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"

  2491. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2492. vda_deps="vda_framework pthreads"

  2493. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2494. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2495. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2496. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2497. xvmc_deps="X11_extensions_XvMClib_h"

  2498. 

  2499. h263_vaapi_hwaccel_deps="vaapi"

  2500. h263_vaapi_hwaccel_select="h263_decoder"

  2501. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2502. h263_videotoolbox_hwaccel_select="h263_decoder"

  2503. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2504. h264_d3d11va_hwaccel_deps="d3d11va"

  2505. h264_d3d11va_hwaccel_select="h264_decoder"

  2506. h264_dxva2_hwaccel_deps="dxva2"

  2507. h264_dxva2_hwaccel_select="h264_decoder"

  2508. h264_mmal_decoder_deps="mmal"

  2509. h264_mmal_decoder_select="mmal"

  2510. h264_mmal_hwaccel_deps="mmal"

  2511. h264_qsv_hwaccel_deps="libmfx"

  2512. h264_vaapi_hwaccel_deps="vaapi"

  2513. h264_vaapi_hwaccel_select="h264_decoder"

  2514. h264_vda_decoder_deps="vda"

  2515. h264_vda_decoder_select="h264_decoder"

  2516. h264_vda_hwaccel_deps="vda"

  2517. h264_vda_hwaccel_select="h264_decoder"

  2518. h264_vda_old_hwaccel_deps="vda"

  2519. h264_vda_old_hwaccel_select="h264_decoder"

  2520. h264_vdpau_decoder_deps="vdpau"

  2521. h264_vdpau_decoder_select="h264_decoder"

  2522. h264_vdpau_hwaccel_deps="vdpau"

  2523. h264_vdpau_hwaccel_select="h264_decoder"

  2524. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2525. h264_videotoolbox_hwaccel_select="h264_decoder"

  2526. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2527. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2528. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2529. hevc_dxva2_hwaccel_select="hevc_decoder"

  2530. hevc_qsv_hwaccel_deps="libmfx"

  2531. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2532. hevc_vaapi_hwaccel_select="hevc_decoder"

  2533. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2534. hevc_vdpau_hwaccel_select="hevc_decoder"

  2535. mpeg_vdpau_decoder_deps="vdpau"

  2536. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2537. mpeg_xvmc_hwaccel_deps="xvmc"

  2538. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2539. mpeg1_vdpau_decoder_deps="vdpau"

  2540. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2541. mpeg1_vdpau_hwaccel_deps="vdpau"

  2542. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2543. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2544. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2545. mpeg1_xvmc_hwaccel_deps="xvmc"

  2546. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2547. mpeg2_crystalhd_decoder_select="crystalhd"

  2548. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2549. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2550. mpeg2_dxva2_hwaccel_deps="dxva2"

  2551. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2552. mpeg2_mmal_decoder_deps="mmal"

  2553. mpeg2_mmal_decoder_select="mmal"

  2554. mpeg2_mmal_hwaccel_deps="mmal"

  2555. mpeg2_qsv_hwaccel_deps="libmfx"

  2556. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2557. mpeg2_vaapi_hwaccel_deps="vaapi"

  2558. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2559. mpeg2_vdpau_hwaccel_deps="vdpau"

  2560. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2561. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2562. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2563. mpeg2_xvmc_hwaccel_deps="xvmc"

  2564. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2565. mpeg4_crystalhd_decoder_select="crystalhd"

  2566. mpeg4_mmal_decoder_deps="mmal"

  2567. mpeg4_mmal_decoder_select="mmal"

  2568. mpeg4_mmal_hwaccel_deps="mmal"

  2569. mpeg4_vaapi_hwaccel_deps="vaapi"

  2570. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2571. mpeg4_vdpau_decoder_deps="vdpau"

  2572. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2573. mpeg4_vdpau_hwaccel_deps="vdpau"

  2574. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2575. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2576. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2577. msmpeg4_crystalhd_decoder_select="crystalhd"

  2578. vc1_crystalhd_decoder_select="crystalhd"

  2579. vc1_d3d11va_hwaccel_deps="d3d11va"

  2580. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2581. vc1_dxva2_hwaccel_deps="dxva2"

  2582. vc1_dxva2_hwaccel_select="vc1_decoder"

  2583. vc1_mmal_decoder_deps="mmal"

  2584. vc1_mmal_decoder_select="mmal"

  2585. vc1_mmal_hwaccel_deps="mmal"

  2586. vc1_qsv_hwaccel_deps="libmfx"

  2587. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2588. vc1_vaapi_hwaccel_deps="vaapi"

  2589. vc1_vaapi_hwaccel_select="vc1_decoder"

  2590. vc1_vdpau_decoder_deps="vdpau"

  2591. vc1_vdpau_decoder_select="vc1_decoder"

  2592. vc1_vdpau_hwaccel_deps="vdpau"

  2593. vc1_vdpau_hwaccel_select="vc1_decoder"

  2594. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2595. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2596. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2597. vp9_dxva2_hwaccel_select="vp9_decoder"

  2598. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"

  2599. vp9_vaapi_hwaccel_select="vp9_decoder"

  2600. wmv3_crystalhd_decoder_select="crystalhd"

  2601. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2602. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2603. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2604. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2605. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2606. 

  2607. # parsers

  2608. h264_parser_select="h264_decoder"

  2609. hevc_parser_select="golomb"

  2610. mpegvideo_parser_select="mpegvideo"

  2611. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2612. vc1_parser_select="vc1dsp"

  2613. 

  2614. # bitstream_filters

  2615. mjpeg2jpeg_bsf_select="jpegtables"

  2616. 

  2617. # external libraries

  2618. chromaprint_muxer_deps="chromaprint"

  2619. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2620. h264_videotoolbox_encoder_select="bzlib zlib iconv"

  2621. libcelt_decoder_deps="libcelt"

  2622. libdcadec_decoder_deps="libdcadec"

  2623. libfaac_encoder_deps="libfaac"

  2624. libfaac_encoder_select="audio_frame_queue"

  2625. libfdk_aac_decoder_deps="libfdk_aac"

  2626. libfdk_aac_encoder_deps="libfdk_aac"

  2627. libfdk_aac_encoder_select="audio_frame_queue"

  2628. libgme_demuxer_deps="libgme"

  2629. libgsm_decoder_deps="libgsm"

  2630. libgsm_encoder_deps="libgsm"

  2631. libgsm_ms_decoder_deps="libgsm"

  2632. libgsm_ms_encoder_deps="libgsm"

  2633. libilbc_decoder_deps="libilbc"

  2634. libilbc_encoder_deps="libilbc"

  2635. libkvazaar_encoder_deps="libkvazaar"

  2636. libmodplug_demuxer_deps="libmodplug"

  2637. libmp3lame_encoder_deps="libmp3lame"

  2638. libmp3lame_encoder_select="audio_frame_queue"

  2639. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2640. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2641. libopencore_amrnb_encoder_select="audio_frame_queue"

  2642. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2643. libopenh264_encoder_deps="libopenh264"

  2644. libopenjpeg_decoder_deps="libopenjpeg"

  2645. libopenjpeg_encoder_deps="libopenjpeg"

  2646. libopus_decoder_deps="libopus"

  2647. libopus_encoder_deps="libopus"

  2648. libopus_encoder_select="audio_frame_queue"

  2649. libschroedinger_decoder_deps="libschroedinger"

  2650. libschroedinger_encoder_deps="libschroedinger"

  2651. libshine_encoder_deps="libshine"

  2652. libshine_encoder_select="audio_frame_queue"

  2653. libspeex_decoder_deps="libspeex"

  2654. libspeex_encoder_deps="libspeex"

  2655. libspeex_encoder_select="audio_frame_queue"

  2656. libtheora_encoder_deps="libtheora"

  2657. libtwolame_encoder_deps="libtwolame"

  2658. libutvideo_decoder_deps="libutvideo"

  2659. libutvideo_encoder_deps="libutvideo"

  2660. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2661. libvorbis_decoder_deps="libvorbis"

  2662. libvorbis_encoder_deps="libvorbis"

  2663. libvorbis_encoder_select="audio_frame_queue"

  2664. libvpx_vp8_decoder_deps="libvpx"

  2665. libvpx_vp8_encoder_deps="libvpx"

  2666. libvpx_vp9_decoder_deps="libvpx"

  2667. libvpx_vp9_encoder_deps="libvpx"

  2668. libwavpack_encoder_deps="libwavpack"

  2669. libwebp_encoder_deps="libwebp"

  2670. libwebp_anim_encoder_deps="libwebp"

  2671. libx262_encoder_deps="libx262"

  2672. libx264_encoder_deps="libx264"

  2673. libx264rgb_encoder_deps="libx264"

  2674. libx264rgb_encoder_select="libx264_encoder"

  2675. libx265_encoder_deps="libx265"

  2676. libxavs_encoder_deps="libxavs"

  2677. libxvid_encoder_deps="libxvid"

  2678. libzvbi_teletext_decoder_deps="libzvbi"

  2679. nvenc_encoder_deps="nvenc"

  2680. nvenc_h264_encoder_deps="nvenc"

  2681. nvenc_hevc_encoder_deps="nvenc"

  2682. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2683. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2684. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2685. videotoolbox_encoder_suggest="vda_framework"

  2686. 

  2687. # demuxers / muxers

  2688. ac3_demuxer_select="ac3_parser"

  2689. asf_demuxer_select="riffdec"

  2690. asf_o_demuxer_select="riffdec"

  2691. asf_muxer_select="riffenc"

  2692. asf_stream_muxer_select="asf_muxer"

  2693. avi_demuxer_select="iso_media riffdec exif"

  2694. avi_muxer_select="riffenc"

  2695. avisynth_demuxer_deps="avisynth"

  2696. avisynth_demuxer_select="riffdec"

  2697. caf_demuxer_select="iso_media riffdec"

  2698. dash_muxer_select="mp4_muxer"

  2699. dirac_demuxer_select="dirac_parser"

  2700. dts_demuxer_select="dca_parser"

  2701. dtshd_demuxer_select="dca_parser"

  2702. dv_demuxer_select="dvprofile"

  2703. dv_muxer_select="dvprofile"

  2704. dxa_demuxer_select="riffdec"

  2705. eac3_demuxer_select="ac3_parser"

  2706. f4v_muxer_select="mov_muxer"

  2707. flac_demuxer_select="flac_parser"

  2708. hds_muxer_select="flv_muxer"

  2709. hls_muxer_select="mpegts_muxer"

  2710. image2_alias_pix_demuxer_select="image2_demuxer"

  2711. image2_brender_pix_demuxer_select="image2_demuxer"

  2712. ipod_muxer_select="mov_muxer"

  2713. ismv_muxer_select="mov_muxer"

  2714. libnut_demuxer_deps="libnut"

  2715. libnut_muxer_deps="libnut"

  2716. matroska_audio_muxer_select="matroska_muxer"

  2717. matroska_demuxer_select="iso_media riffdec"

  2718. matroska_demuxer_suggest="bzlib lzo zlib"

  2719. matroska_muxer_select="iso_media riffenc"

  2720. mmf_muxer_select="riffenc"

  2721. mov_demuxer_select="iso_media riffdec"

  2722. mov_demuxer_suggest="zlib"

  2723. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2724. mp3_demuxer_select="mpegaudio_parser"

  2725. mp4_muxer_select="mov_muxer"

  2726. mpegts_demuxer_select="iso_media"

  2727. mpegts_muxer_select="adts_muxer latm_muxer"

  2728. mpegtsraw_demuxer_select="mpegts_demuxer"

  2729. mxf_d10_muxer_select="mxf_muxer"

  2730. mxf_opatom_muxer_select="mxf_muxer"

  2731. nut_muxer_select="riffenc"

  2732. nuv_demuxer_select="riffdec"

  2733. oga_muxer_select="ogg_muxer"

  2734. ogg_demuxer_select="dirac_parse"

  2735. opus_muxer_select="ogg_muxer"

  2736. psp_muxer_select="mov_muxer"

  2737. rtp_demuxer_select="sdp_demuxer"

  2738. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"

  2739. rtsp_demuxer_select="http_protocol rtpdec"

  2740. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2741. sap_demuxer_select="sdp_demuxer"

  2742. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2743. sdp_demuxer_select="rtpdec"

  2744. smoothstreaming_muxer_select="ismv_muxer"

  2745. spdif_muxer_select="aac_parser"

  2746. spx_muxer_select="ogg_muxer"

  2747. swf_demuxer_suggest="zlib"

  2748. tak_demuxer_select="tak_parser"

  2749. tg2_muxer_select="mov_muxer"

  2750. tgp_muxer_select="mov_muxer"

  2751. vobsub_demuxer_select="mpegps_demuxer"

  2752. w64_demuxer_select="wav_demuxer"

  2753. w64_muxer_select="wav_muxer"

  2754. wav_demuxer_select="riffdec"

  2755. wav_muxer_select="riffenc"

  2756. webm_muxer_select="iso_media riffenc"

  2757. webm_dash_manifest_demuxer_select="matroska_demuxer"

  2758. wtv_demuxer_select="mpegts_demuxer riffdec"

  2759. wtv_muxer_select="mpegts_muxer riffenc"

  2760. xmv_demuxer_select="riffdec"

  2761. xwma_demuxer_select="riffdec"

  2762. 

  2763. # indevs / outdevs

  2764. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2765. alsa_outdev_deps="alsa_asoundlib_h"

  2766. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2767. avfoundation_indev_select="avfoundation"

  2768. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2769. caca_outdev_deps="libcaca"

  2770. decklink_indev_deps="decklink pthreads"

  2771. decklink_indev_extralibs="-lstdc++"

  2772. decklink_outdev_deps="decklink pthreads"

  2773. decklink_outdev_extralibs="-lstdc++"

  2774. dshow_indev_deps="IBaseFilter"

  2775. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2776. dv1394_indev_deps="dv1394"

  2777. dv1394_indev_select="dv_demuxer"

  2778. fbdev_indev_deps="linux_fb_h"

  2779. fbdev_outdev_deps="linux_fb_h"

  2780. gdigrab_indev_deps="CreateDIBSection"

  2781. gdigrab_indev_extralibs="-lgdi32"

  2782. gdigrab_indev_select="bmp_decoder"

  2783. iec61883_indev_deps="libiec61883"

  2784. jack_indev_deps="jack_jack_h"

  2785. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  2786. lavfi_indev_deps="avfilter"

  2787. libcdio_indev_deps="libcdio"

  2788. libdc1394_indev_deps="libdc1394"

  2789. libv4l2_indev_deps="libv4l2"

  2790. openal_indev_deps="openal"

  2791. opengl_outdev_deps="opengl"

  2792. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2793. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2794. pulse_indev_deps="libpulse"

  2795. pulse_outdev_deps="libpulse"

  2796. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2797. qtkit_indev_select="qtkit"

  2798. sdl_outdev_deps="sdl"

  2799. sndio_indev_deps="sndio_h"

  2800. sndio_outdev_deps="sndio_h"

  2801. v4l_indev_deps="linux_videodev_h"

  2802. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2803. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2804. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2805. vfwcap_indev_extralibs="-lavicap32"

  2806. x11grab_indev_deps="x11grab"

  2807. x11grab_xcb_indev_deps="libxcb"

  2808. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2809. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2810. 

  2811. # protocols

  2812. async_protocol_deps="threads"

  2813. bluray_protocol_deps="libbluray"

  2814. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2815. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2816. ffrtmpcrypt_protocol_select="tcp_protocol"

  2817. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2818. ffrtmphttp_protocol_select="http_protocol"

  2819. ftp_protocol_select="tcp_protocol"

  2820. gopher_protocol_select="network"

  2821. http_protocol_select="tcp_protocol"

  2822. httpproxy_protocol_select="tcp_protocol"

  2823. https_protocol_select="tls_protocol"

  2824. icecast_protocol_select="http_protocol"

  2825. librtmp_protocol_deps="librtmp"

  2826. librtmpe_protocol_deps="librtmp"

  2827. librtmps_protocol_deps="librtmp"

  2828. librtmpt_protocol_deps="librtmp"

  2829. librtmpte_protocol_deps="librtmp"

  2830. libsmbclient_protocol_deps="libsmbclient gplv3"

  2831. libssh_protocol_deps="libssh"

  2832. mmsh_protocol_select="http_protocol"

  2833. mmst_protocol_select="network"

  2834. rtmp_protocol_deps="!librtmp_protocol"

  2835. rtmp_protocol_select="tcp_protocol"

  2836. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2837. rtmps_protocol_deps="!librtmp_protocol"

  2838. rtmps_protocol_select="tls_protocol"

  2839. rtmpt_protocol_select="ffrtmphttp_protocol"

  2840. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2841. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2842. rtp_protocol_select="udp_protocol"

  2843. sctp_protocol_deps="struct_sctp_event_subscribe"

  2844. sctp_protocol_select="network"

  2845. srtp_protocol_select="rtp_protocol"

  2846. tcp_protocol_select="network"

  2847. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  2848. tls_gnutls_protocol_select="tcp_protocol"

  2849. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  2850. tls_openssl_protocol_select="tcp_protocol"

  2851. tls_schannel_protocol_deps="schannel"

  2852. tls_schannel_protocol_select="tcp_protocol"

  2853. tls_securetransport_protocol_deps="securetransport"

  2854. tls_securetransport_protocol_select="tcp_protocol"

  2855. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  2856. udp_protocol_select="network"

  2857. udplite_protocol_select="network"

  2858. unix_protocol_deps="sys_un_h"

  2859. unix_protocol_select="network"

  2860. 

  2861. # filters

  2862. afftfilt_filter_deps="avcodec"

  2863. afftfilt_filter_select="fft"

  2864. amovie_filter_deps="avcodec avformat"

  2865. aresample_filter_deps="swresample"

  2866. ass_filter_deps="libass"

  2867. asyncts_filter_deps="avresample"

  2868. atempo_filter_deps="avcodec"

  2869. atempo_filter_select="rdft"

  2870. azmq_filter_deps="libzmq"

  2871. blackframe_filter_deps="gpl"

  2872. boxblur_filter_deps="gpl"

  2873. bs2b_filter_deps="libbs2b"

  2874. colormatrix_filter_deps="gpl"

  2875. cover_rect_filter_deps="avcodec avformat gpl"

  2876. cropdetect_filter_deps="gpl"

  2877. delogo_filter_deps="gpl"

  2878. deshake_filter_select="pixelutils"

  2879. drawtext_filter_deps="libfreetype"

  2880. ebur128_filter_deps="gpl"

  2881. eq_filter_deps="gpl"

  2882. fftfilt_filter_deps="avcodec"

  2883. fftfilt_filter_select="rdft"

  2884. find_rect_filter_deps="avcodec avformat gpl"

  2885. firequalizer_filter_deps="avcodec"

  2886. firequalizer_filter_select="rdft"

  2887. flite_filter_deps="libflite"

  2888. frei0r_filter_deps="frei0r dlopen"

  2889. frei0r_src_filter_deps="frei0r dlopen"

  2890. fspp_filter_deps="gpl"

  2891. geq_filter_deps="gpl"

  2892. histeq_filter_deps="gpl"

  2893. hqdn3d_filter_deps="gpl"

  2894. hwupload_cuda_filter_deps="cuda"

  2895. interlace_filter_deps="gpl"

  2896. kerndeint_filter_deps="gpl"

  2897. ladspa_filter_deps="ladspa dlopen"

  2898. mcdeint_filter_deps="avcodec gpl"

  2899. movie_filter_deps="avcodec avformat"

  2900. mpdecimate_filter_deps="gpl"

  2901. mpdecimate_filter_select="pixelutils"

  2902. mptestsrc_filter_deps="gpl"

  2903. negate_filter_deps="lut_filter"

  2904. nnedi_filter_deps="gpl"

  2905. ocr_filter_deps="libtesseract"

  2906. ocv_filter_deps="libopencv"

  2907. owdenoise_filter_deps="gpl"

  2908. pan_filter_deps="swresample"

  2909. perspective_filter_deps="gpl"

  2910. phase_filter_deps="gpl"

  2911. pp7_filter_deps="gpl"

  2912. pp_filter_deps="gpl postproc"

  2913. pullup_filter_deps="gpl"

  2914. removelogo_filter_deps="avcodec avformat swscale"

  2915. repeatfields_filter_deps="gpl"

  2916. resample_filter_deps="avresample"

  2917. rubberband_filter_deps="librubberband"

  2918. sab_filter_deps="gpl swscale"

  2919. scale2ref_filter_deps="swscale"

  2920. scale_filter_deps="swscale"

  2921. select_filter_select="pixelutils"

  2922. showcqt_filter_deps="avcodec avformat swscale"

  2923. showcqt_filter_select="fft"

  2924. showfreqs_filter_deps="avcodec"

  2925. showfreqs_filter_select="fft"

  2926. showspectrum_filter_deps="avcodec"

  2927. showspectrum_filter_select="fft"

  2928. showspectrumpic_filter_deps="avcodec"

  2929. showspectrumpic_filter_select="fft"

  2930. smartblur_filter_deps="gpl swscale"

  2931. sofalizer_filter_deps="netcdf avcodec"

  2932. sofalizer_filter_select="fft"

  2933. spectrumsynth_filter_deps="avcodec"

  2934. spectrumsynth_filter_select="fft"

  2935. spp_filter_deps="gpl avcodec"

  2936. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  2937. stereo3d_filter_deps="gpl"

  2938. subtitles_filter_deps="avformat avcodec libass"

  2939. super2xsai_filter_deps="gpl"

  2940. pixfmts_super2xsai_test_deps="super2xsai_filter"

  2941. tinterlace_filter_deps="gpl"

  2942. tinterlace_merge_test_deps="tinterlace_filter"

  2943. tinterlace_pad_test_deps="tinterlace_filter"

  2944. uspp_filter_deps="gpl avcodec"

  2945. vidstabdetect_filter_deps="libvidstab"

  2946. vidstabtransform_filter_deps="libvidstab"

  2947. zmq_filter_deps="libzmq"

  2948. zoompan_filter_deps="swscale"

  2949. zscale_filter_deps="libzimg"

  2950. 

  2951. # examples

  2952. avcodec_example_deps="avcodec avutil"

  2953. avio_dir_cmd="avformat avutil"

  2954. avio_reading="avformat avcodec avutil"

  2955. decoding_encoding_example_deps="avcodec avformat avutil"

  2956. demuxing_decoding_example_deps="avcodec avformat avutil"

  2957. extract_mvs_example_deps="avcodec avformat avutil"

  2958. filter_audio_example_deps="avfilter avutil"

  2959. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  2960. filtering_video_example_deps="avfilter avcodec avformat avutil"

  2961. metadata_example_deps="avformat avutil"

  2962. muxing_example_deps="avcodec avformat avutil swscale"

  2963. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  2964. remuxing_example_deps="avcodec avformat avutil"

  2965. resampling_audio_example_deps="avutil swresample"

  2966. scaling_video_example_deps="avutil swscale"

  2967. transcode_aac_example_deps="avcodec avformat swresample"

  2968. transcoding_example_deps="avfilter avcodec avformat avutil"

  2969. 

  2970. # libraries, in linking order

  2971. avcodec_deps="avutil"

  2972. avdevice_deps="avformat avcodec avutil"

  2973. avfilter_deps="avutil"

  2974. avformat_deps="avcodec avutil"

  2975. avresample_deps="avutil"

  2976. postproc_deps="avutil gpl"

  2977. swresample_deps="avutil"

  2978. swscale_deps="avutil"

  2979. 

  2980. # programs

  2981. ffmpeg_deps="avcodec avfilter avformat swresample"

  2982. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  2983.                null_filter

  2984.                setpts_filter trim_filter"

  2985. ffplay_deps="avcodec avformat swscale swresample sdl"

  2986. ffplay_libs='$sdl_libs'

  2987. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  2988. ffprobe_deps="avcodec avformat"

  2989. ffserver_deps="avformat fork sarestart"

  2990. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  2991. 

  2992. # documentation

  2993. podpages_deps="perl"

  2994. manpages_deps="perl pod2man"

  2995. htmlpages_deps="perl"

  2996. htmlpages_deps_any="makeinfo_html texi2html"

  2997. txtpages_deps="perl makeinfo"

  2998. doc_deps_any="manpages htmlpages podpages txtpages"

  2999. 

  3000. # default parameters

  3001. 

  3002. logfile="config.log"

  3003. 

  3004. # installation paths

  3005. prefix_default="/usr/local"

  3006. bindir_default='${prefix}/bin'

  3007. datadir_default='${prefix}/share/ffmpeg'

  3008. docdir_default='${prefix}/share/doc/ffmpeg'

  3009. incdir_default='${prefix}/include'

  3010. libdir_default='${prefix}/lib'

  3011. mandir_default='${prefix}/share/man'

  3012. 

  3013. # toolchain

  3014. ar_default="ar"

  3015. cc_default="gcc"

  3016. cxx_default="g++"

  3017. host_cc_default="gcc"

  3018. cp_f="cp -f"

  3019. doxygen_default="doxygen"

  3020. install="install"

  3021. ln_s="ln -s -f"

  3022. nm_default="nm -g"

  3023. objformat="elf"

  3024. pkg_config_default=pkg-config

  3025. ranlib_default="ranlib"

  3026. strip_default="strip"

  3027. yasmexe_default="yasm"

  3028. windres_default="windres"

  3029. 

  3030. # OS

  3031. target_os_default=$(tolower $(uname -s))

  3032. host_os=$target_os_default

  3033. 

  3034. # machine

  3035. if test "$target_os_default" = aix; then

  3036.     arch_default=$(uname -p)

  3037.     strip_default="strip -X32_64"

  3038. else

  3039.     arch_default=$(uname -m)

  3040. fi

  3041. cpu="generic"

  3042. intrinsics="none"

  3043. 

  3044. # configurable options

  3045. enable $PROGRAM_LIST

  3046. enable $DOCUMENT_LIST

  3047. enable $EXAMPLE_LIST

  3048. enable $(filter_out avresample $LIBRARY_LIST)

  3049. enable stripping

  3050. 

  3051. enable asm

  3052. enable debug

  3053. enable doc

  3054. enable faan faandct faanidct

  3055. enable optimizations

  3056. enable runtime_cpudetect

  3057. enable safe_bitstream_reader

  3058. enable static

  3059. enable swscale_alpha

  3060. enable valgrind_backtrace

  3061. 

  3062. sws_max_filter_size_default=256

  3063. set_default sws_max_filter_size

  3064. 

  3065. # Enable hwaccels by default.

  3066. enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc

  3067. enable xlib

  3068. 

  3069. enable vda_framework videotoolbox videotoolbox_encoder

  3070. 

  3071. # build settings

  3072. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3073. LIBPREF="lib"

  3074. LIBSUF=".a"

  3075. FULLNAME='$(NAME)$(BUILDSUF)'

  3076. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3077. SLIBPREF="lib"

  3078. SLIBSUF=".so"

  3079. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3080. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3081. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3082. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3083. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3084. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3085. 

  3086. asflags_filter=echo

  3087. cflags_filter=echo

  3088. ldflags_filter=echo

  3089. 

  3090. AS_C='-c'

  3091. AS_O='-o $@'

  3092. CC_C='-c'

  3093. CC_E='-E -o $@'

  3094. CC_O='-o $@'

  3095. CXX_C='-c'

  3096. CXX_O='-o $@'

  3097. OBJCC_C='-c'

  3098. OBJCC_E='-E -o $@'

  3099. OBJCC_O='-o $@'

  3100. LD_O='-o $@'

  3101. LD_LIB='-l%'

  3102. LD_PATH='-L'

  3103. HOSTCC_C='-c'

  3104. HOSTCC_E='-E -o $@'

  3105. HOSTCC_O='-o $@'

  3106. HOSTLD_O='-o $@'

  3107. 

  3108. host_libs='-lm'

  3109. host_cflags_filter=echo

  3110. host_ldflags_filter=echo

  3111. 

  3112. target_path='$(CURDIR)'

  3113. 

  3114. # since the object filename is not given with the -MM flag, the compiler

  3115. # is only able to print the basename, and we must add the path ourselves

  3116. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3117. DEPFLAGS='-MM'

  3118. 

  3119. # find source path

  3120. if test -f configure; then

  3121.     source_path=.

  3122. else

  3123.     source_path=$(cd $(dirname "$0"); pwd)

  3124.     case "$source_path" in

  3125.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3126.     esac

  3127.     test -e "$source_path/config.h" &&

  3128.         die "Out of tree builds are impossible with config.h in source dir."

  3129. fi

  3130. 

  3131. for v in "$@"; do

  3132.     r=${v#*=}

  3133.     l=${v%"$r"}

  3134.     r=$(sh_quote "$r")

  3135.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3136. done

  3137. 

  3138. find_things(){

  3139.     thing=$1

  3140.     pattern=$2

  3141.     file=$source_path/$3

  3142.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3143. }

  3144. 

  3145. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3146. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3147. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3148. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3149. BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)

  3150. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3151. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3152. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3153. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3154. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3155. 

  3156. find_things_extern(){

  3157.     thing=$1

  3158.     pattern=$2

  3159.     file=$source_path/$3

  3160.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3161. }

  3162. 

  3163. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3164. 

  3165. ALL_COMPONENTS="

  3166.     $BSF_LIST

  3167.     $DECODER_LIST

  3168.     $DEMUXER_LIST

  3169.     $ENCODER_LIST

  3170.     $FILTER_LIST

  3171.     $HWACCEL_LIST

  3172.     $INDEV_LIST

  3173.     $MUXER_LIST

  3174.     $OUTDEV_LIST

  3175.     $PARSER_LIST

  3176.     $PROTOCOL_LIST

  3177. "

  3178. 

  3179. for n in $COMPONENT_LIST; do

  3180.     v=$(toupper ${n%s})_LIST

  3181.     eval enable \$$v

  3182.     eval ${n}_if_any="\$$v"

  3183. done

  3184. 

  3185. enable $ARCH_EXT_LIST

  3186. 

  3187. die_unknown(){

  3188.     echo "Unknown option \"$1\"."

  3189.     echo "See $0 --help for available options."

  3190.     exit 1

  3191. }

  3192. 

  3193. print_in_columns() {

  3194.     cols=$(expr $ncols / 24)

  3195.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3196. }

  3197. 

  3198. show_list() {

  3199.     suffix=_$1

  3200.     shift

  3201.     echo $* | sed s/$suffix//g | print_in_columns

  3202.     exit 0

  3203. }

  3204. 

  3205. rand_list(){

  3206.     IFS=', '

  3207.     set -- $*

  3208.     unset IFS

  3209.     for thing; do

  3210.         comp=${thing%:*}

  3211.         prob=${thing#$comp}

  3212.         prob=${prob#:}

  3213.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3214.         echo "prob ${prob:-0.5}"

  3215.         printf '%s\n' $comp

  3216.     done

  3217. }

  3218. 

  3219. do_random(){

  3220.     action=$1

  3221.     shift

  3222.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3223.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3224. }

  3225. 

  3226. for opt do

  3227.     optval="${opt#*=}"

  3228.     case "$opt" in

  3229.         --extra-ldflags=*)

  3230.             add_ldflags $optval

  3231.         ;;

  3232.         --extra-ldexeflags=*)

  3233.             add_ldexeflags $optval

  3234.         ;;

  3235.         --extra-ldlibflags=*)

  3236.             add_ldlibflags $optval

  3237.         ;;

  3238.         --extra-libs=*)

  3239.             add_extralibs $optval

  3240.         ;;

  3241.         --disable-devices)

  3242.             disable $INDEV_LIST $OUTDEV_LIST

  3243.         ;;

  3244.         --enable-debug=*)

  3245.             debuglevel="$optval"

  3246.         ;;

  3247.         --disable-programs)

  3248.             disable $PROGRAM_LIST

  3249.         ;;

  3250.         --disable-everything)

  3251.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3252.         ;;

  3253.         --disable-all)

  3254.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3255.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3256.             enable avutil

  3257.         ;;

  3258.         --enable-random|--disable-random)

  3259.             action=${opt%%-random}

  3260.             do_random ${action#--} $COMPONENT_LIST

  3261.         ;;

  3262.         --enable-random=*|--disable-random=*)

  3263.             action=${opt%%-random=*}

  3264.             do_random ${action#--} $optval

  3265.         ;;

  3266.         --enable-*=*|--disable-*=*)

  3267.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3268.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3269.             eval list=\$$(toupper $thing)_LIST

  3270.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3271.             list=$(filter "$name" $list)

  3272.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3273.             $action $list

  3274.         ;;

  3275.         --enable-?*|--disable-?*)

  3276.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3277.             if is_in $option $COMPONENT_LIST; then

  3278.                 test $action = disable && action=unset

  3279.                 eval $action \$$(toupper ${option%s})_LIST

  3280.             elif is_in $option $CMDLINE_SELECT; then

  3281.                 $action $option

  3282.             else

  3283.                 die_unknown $opt

  3284.             fi

  3285.         ;;

  3286.         --list-*)

  3287.             NAME="${opt#--list-}"

  3288.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3289.             NAME=${NAME%s}

  3290.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3291.         ;;

  3292.         --help|-h) show_help

  3293.         ;;

  3294.         --fatal-warnings) enable fatal_warnings

  3295.         ;;

  3296.         *)

  3297.             optname="${opt%%=*}"

  3298.             optname="${optname#--}"

  3299.             optname=$(echo "$optname" | sed 's/-/_/g')

  3300.             if is_in $optname $CMDLINE_SET; then

  3301.                 eval $optname='$optval'

  3302.             elif is_in $optname $CMDLINE_APPEND; then

  3303.                 append $optname "$optval"

  3304.             else

  3305.                 die_unknown $opt

  3306.             fi

  3307.         ;;

  3308.     esac

  3309. done

  3310. 

  3311. for e in $env; do

  3312.     eval "export $e"

  3313. done

  3314. 

  3315. disabled logging && logfile=/dev/null

  3316. 

  3317. # Disable all the library-specific components if the library itself

  3318. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3319. 

  3320. disable_components(){

  3321.     disabled ${1} && disable $(

  3322.         eval components="\$$(toupper ${1})_COMPONENTS"

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

  3324.     )

  3325. }

  3326. 

  3327. map 'disable_components $v' $LIBRARY_LIST

  3328. 

  3329. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3330. set >> $logfile

  3331. 

  3332. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3333. 

  3334. case "$toolchain" in

  3335.     *-asan)

  3336.         cc_default="${toolchain%-asan}"

  3337.         add_cflags  -fsanitize=address

  3338.         add_ldflags -fsanitize=address

  3339.     ;;

  3340.     *-tsan)

  3341.         cc_default="${toolchain%-tsan}"

  3342.         add_cflags  -fsanitize=thread -pie

  3343.         add_ldflags -fsanitize=thread -pie

  3344.         case "$toolchain" in

  3345.             gcc-tsan)

  3346.                 add_cflags  -fPIC

  3347.                 add_ldflags -fPIC

  3348.                 ;;

  3349.         esac

  3350.     ;;

  3351.     *-usan)

  3352.         cc_default="${toolchain%-usan}"

  3353.         add_cflags  -fsanitize=undefined

  3354.         add_ldflags -fsanitize=undefined

  3355.     ;;

  3356.     valgrind-*)

  3357.         target_exec_default="valgrind"

  3358.         case "$toolchain" in

  3359.             valgrind-massif)

  3360.                 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"

  3361.                 ;;

  3362.             valgrind-memcheck)

  3363.                 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"

  3364.                 ;;

  3365.         esac

  3366.     ;;

  3367.     msvc)

  3368.         # Check whether the current MSVC version needs the C99 converter.

  3369.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3370.         # support enough of C99 to build ffmpeg. Default to the new

  3371.         # behaviour if the regexp was unable to match anything, since this

  3372.         # successfully parses the version number of existing supported

  3373.         # versions that require the converter (MSVC 2010 and 2012).

  3374.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3375.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3376.             cc_default="cl"

  3377.         else

  3378.             cc_default="c99wrap cl"

  3379.         fi

  3380.         ld_default="$source_path/compat/windows/mslink"

  3381.         nm_default="dumpbin -symbols"

  3382.         ar_default="lib"

  3383.         case "$arch" in

  3384.         arm*)

  3385.             as_default="armasm"

  3386.             ;;

  3387.         esac

  3388.         target_os_default="win32"

  3389.         # Use a relative path for TMPDIR. This makes sure all the

  3390.         # ffconf temp files are written with a relative path, avoiding

  3391.         # issues with msys/win32 path conversion for MSVC parameters

  3392.         # such as -Fo<file> or -out:<file>.

  3393.         TMPDIR=.

  3394.     ;;

  3395.     icl)

  3396.         cc_default="icl"

  3397.         ld_default="xilink"

  3398.         nm_default="dumpbin -symbols"

  3399.         ar_default="xilib"

  3400.         target_os_default="win32"

  3401.         TMPDIR=.

  3402.     ;;

  3403.     gcov)

  3404.         add_cflags  -fprofile-arcs -ftest-coverage

  3405.         add_ldflags -fprofile-arcs -ftest-coverage

  3406.     ;;

  3407.     hardened)

  3408.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3409.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3410.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3411.     ;;

  3412.     ?*)

  3413.         die "Unknown toolchain $toolchain"

  3414.     ;;

  3415. esac

  3416. 

  3417. test -n "$cross_prefix" && enable cross_compile

  3418. 

  3419. if enabled cross_compile; then

  3420.     test -n "$arch" && test -n "$target_os" ||

  3421.         die "Must specify target arch and OS when cross-compiling"

  3422. fi

  3423. 

  3424. ar_default="${cross_prefix}${ar_default}"

  3425. cc_default="${cross_prefix}${cc_default}"

  3426. cxx_default="${cross_prefix}${cxx_default}"

  3427. nm_default="${cross_prefix}${nm_default}"

  3428. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3429. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3430.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3431. else

  3432.     ranlib_default="${cross_prefix}${ranlib_default}"

  3433. fi

  3434. strip_default="${cross_prefix}${strip_default}"

  3435. windres_default="${cross_prefix}${windres_default}"

  3436. 

  3437. sysinclude_default="${sysroot}/usr/include"

  3438. 

  3439. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3440.     target_exec target_os yasmexe

  3441. enabled cross_compile || host_cc_default=$cc

  3442. set_default host_cc

  3443. 

  3444. pkg_config_fail_message=""

  3445. if ! $pkg_config --version >/dev/null 2>&1; then

  3446.     warn "$pkg_config not found, library detection may fail."

  3447.     pkg_config=false

  3448. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3449.     pkg_config_fail_message="

  3450. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3451. fi

  3452. 

  3453. if test $doxygen != $doxygen_default && \

  3454.   ! $doxygen --version >/dev/null 2>&1; then

  3455.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3456. fi

  3457. 

  3458. exesuf() {

  3459.     case $1 in

  3460.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3461.     esac

  3462. }

  3463. 

  3464. EXESUF=$(exesuf $target_os)

  3465. HOSTEXESUF=$(exesuf $host_os)

  3466. 

  3467. # set temporary file name

  3468. : ${TMPDIR:=$TEMPDIR}

  3469. : ${TMPDIR:=$TMP}

  3470. : ${TMPDIR:=/tmp}

  3471. 

  3472. if [ -n "$tempprefix" ] ; then

  3473.     mktemp(){

  3474.         echo $tempprefix.${HOSTNAME}.${UID}

  3475.     }

  3476. elif ! check_cmd mktemp -u XXXXXX; then

  3477.     # simple replacement for missing mktemp

  3478.     # NOT SAFE FOR GENERAL USE

  3479.     mktemp(){

  3480.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3481.     }

  3482. fi

  3483. 

  3484. tmpfile(){

  3485.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3486.         (set -C; exec > $tmp) 2>/dev/null ||

  3487.         die "Unable to create temporary file in $TMPDIR."

  3488.     append TMPFILES $tmp

  3489.     eval $1=$tmp

  3490. }

  3491. 

  3492. trap 'rm -f -- $TMPFILES' EXIT

  3493. 

  3494. tmpfile TMPASM .asm

  3495. tmpfile TMPC   .c

  3496. tmpfile TMPCPP .cpp

  3497. tmpfile TMPE   $EXESUF

  3498. tmpfile TMPH   .h

  3499. tmpfile TMPM   .m

  3500. tmpfile TMPO   .o

  3501. tmpfile TMPS   .S

  3502. tmpfile TMPSH  .sh

  3503. tmpfile TMPV   .ver

  3504. 

  3505. unset -f mktemp

  3506. 

  3507. chmod +x $TMPE

  3508. 

  3509. # make sure we can execute files in $TMPDIR

  3510. cat > $TMPSH 2>> $logfile <<EOF

  3511. #! /bin/sh

  3512. EOF

  3513. chmod +x $TMPSH >> $logfile 2>&1

  3514. if ! $TMPSH >> $logfile 2>&1; then

  3515.     cat <<EOF

  3516. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3517. variable to another directory and make sure that it is not mounted noexec.

  3518. EOF

  3519.     die "Sanity test failed."

  3520. fi

  3521. 

  3522. armasm_flags(){

  3523.     for flag; do

  3524.         case $flag in

  3525.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3526.             # be passed to gas-preprocessor

  3527.             -M[TD]*)                                            ;;

  3528.             *)                  echo $flag                      ;;

  3529.         esac

  3530.    done

  3531. }

  3532. 

  3533. ccc_flags(){

  3534.     for flag; do

  3535.         case $flag in

  3536.             -std=c99)           echo -c99                       ;;

  3537.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3538.             -mieee)             echo -ieee                      ;;

  3539.             -O*|-fast)          echo $flag                      ;;

  3540.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3541.             -g)                 echo -g3                        ;;

  3542.             -Wall)              echo -msg_enable level2         ;;

  3543.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3544.             -Wl,*)              echo $flag                      ;;

  3545.             -f*|-W*)                                            ;;

  3546.             *)                  echo $flag                      ;;

  3547.         esac

  3548.    done

  3549. }

  3550. 

  3551. cparser_flags(){

  3552.     for flag; do

  3553.         case $flag in

  3554.             -Wno-switch)             echo -Wno-switch-enum ;;

  3555.             -Wno-format-zero-length) ;;

  3556.             -Wdisabled-optimization) ;;

  3557.             -Wno-pointer-sign)       echo -Wno-other ;;

  3558.             *)                       echo $flag ;;

  3559.         esac

  3560.     done

  3561. }

  3562. 

  3563. msvc_common_flags(){

  3564.     for flag; do

  3565.         case $flag in

  3566.             # In addition to specifying certain flags under the compiler

  3567.             # specific filters, they must be specified here as well or else the

  3568.             # generic catch all at the bottom will print the original flag.

  3569.             -Wall)                ;;

  3570.             -std=c99)             ;;

  3571.             # Common flags

  3572.             -fomit-frame-pointer) ;;

  3573.             -g)                   echo -Z7 ;;

  3574.             -fno-math-errno)      ;;

  3575.             -fno-common)          ;;

  3576.             -fno-signed-zeros)    ;;

  3577.             -fPIC)                ;;

  3578.             -mthumb)              ;;

  3579.             -march=*)             ;;

  3580.             -lz)                  echo zlib.lib ;;

  3581.             -lavifil32)           echo vfw32.lib ;;

  3582.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3583.             -lx264)               echo libx264.lib ;;

  3584.             -l*)                  echo ${flag#-l}.lib ;;

  3585.             -LARGEADDRESSAWARE)   echo $flag ;;

  3586.             -L*)                  echo -libpath:${flag#-L} ;;

  3587.             *)                    echo $flag ;;

  3588.         esac

  3589.     done

  3590. }

  3591. 

  3592. msvc_flags(){

  3593.     msvc_common_flags "$@"

  3594.     for flag; do

  3595.         case $flag in

  3596.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3597.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3598.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3599.                                        -wd4307 \

  3600.                                        -wd4273 -wd4554 -wd4701 ;;

  3601.         esac

  3602.     done

  3603. }

  3604. 

  3605. icl_flags(){

  3606.     msvc_common_flags "$@"

  3607.     for flag; do

  3608.         case $flag in

  3609.             # Despite what Intel's documentation says -Wall, which is supported

  3610.             # on Windows, does enable remarks so disable them here.

  3611.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3612.             -std=c99)             echo -Qstd=c99 ;;

  3613.             -flto)                echo -ipo ;;

  3614.         esac

  3615.     done

  3616. }

  3617. 

  3618. icc_flags(){

  3619.     for flag; do

  3620.         case $flag in

  3621.             -flto)                echo -ipo ;;

  3622.             *)                    echo $flag ;;

  3623.         esac

  3624.     done

  3625. }

  3626. 

  3627. pgi_flags(){

  3628.     for flag; do

  3629.         case $flag in

  3630.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3631.             -fomit-frame-pointer) echo -Mnoframe ;;

  3632.             -g)                   echo -gopt ;;

  3633.             *)                    echo $flag ;;

  3634.         esac

  3635.     done

  3636. }

  3637. 

  3638. suncc_flags(){

  3639.     for flag; do

  3640.         case $flag in

  3641.             -march=*|-mcpu=*)

  3642.                 case "${flag#*=}" in

  3643.                     native)                   echo -xtarget=native       ;;

  3644.                     v9|niagara)               echo -xarch=sparc          ;;

  3645.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3646.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3647.                     i586|pentium)             echo -xchip=pentium        ;;

  3648.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3649.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3650.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3651.                     pentium4*)          echo -xtarget=pentium4           ;;

  3652.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3653.                     *-sse3)             echo -xarch=sse3                 ;;

  3654.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3655.                     bonnell)                   echo -xarch=ssse3         ;;

  3656.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3657.                     westmere)                  echo -xtarget=westmere    ;;

  3658.                     silvermont)                echo -xarch=sse4_2        ;;

  3659.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3660.                     core-avx*|ivybridge|haswell|broadwell)

  3661.                                                echo -xarch=avx           ;;

  3662.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3663.                     btver1)                    echo -xarch=amdsse4a      ;;

  3664.                     btver2|bdver*)             echo -xarch=avx           ;;

  3665.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3666.                     k8|opteron|athlon64|athlon-fx)

  3667.                                                echo -xarch=sse2a         ;;

  3668.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3669.                 esac

  3670.                 ;;

  3671.             -std=c99)             echo -xc99              ;;

  3672.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3673.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3674.             -W*,*)                echo $flag              ;;

  3675.             -f*-*|-W*|-mimpure-text)                      ;;

  3676.             -shared)              echo -G                 ;;

  3677.             *)                    echo $flag              ;;

  3678.         esac

  3679.     done

  3680. }

  3681. 

  3682. tms470_flags(){

  3683.     for flag; do

  3684.         case $flag in

  3685.             -march=*|-mcpu=*)

  3686.                 case "${flag#*=}" in

  3687.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3688.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3689.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3690.                     armv6*|arm11*)          echo -mv=6   ;;

  3691.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3692.                                             echo -mv=5e  ;;

  3693.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3694.                 esac

  3695.                 ;;

  3696.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3697.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3698.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3699.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3700.             -msoft-float)   echo --float_support=vfplib       ;;

  3701.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3702.             -g)             echo -g -mn                       ;;

  3703.             -pds=*)         echo $flag                        ;;

  3704.             -D*|-I*)        echo $flag                        ;;

  3705.             --gcc|--abi=*)  echo $flag                        ;;

  3706.             -me)            echo $flag                        ;;

  3707.         esac

  3708.     done

  3709. }

  3710. 

  3711. probe_cc(){

  3712.     pfx=$1

  3713.     _cc=$2

  3714.     first=$3

  3715. 

  3716.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3717.     unset _ld_o _ldflags _ld_lib _ld_path

  3718.     unset _depflags _DEPCMD _DEPFLAGS

  3719.     _flags_filter=echo

  3720. 

  3721.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3722.         true # no-op to avoid reading stdin in following checks

  3723.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3724.         _type=llvm_gcc

  3725.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3726.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3727.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3728.         _cflags_speed='-O3'

  3729.         _cflags_size='-Os'

  3730.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3731.         _type=gcc

  3732.         gcc_version=$($_cc --version | head -n1)

  3733.         gcc_basever=$($_cc -dumpversion)

  3734.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3735.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3736.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3737.         case $gcc_basever in

  3738.             2) ;;

  3739.             2.*) ;;

  3740.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3741.         esac

  3742.         if [ "$first" = true ]; then

  3743.             case $gcc_basever in

  3744.                 4.2*)

  3745.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3746.             esac

  3747.         fi

  3748.         _cflags_speed='-O3'

  3749.         _cflags_size='-Os'

  3750.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3751.         _type=icc

  3752.         _ident=$($_cc --version | head -n1)

  3753.         _depflags='-MMD'

  3754.         _cflags_speed='-O3'

  3755.         _cflags_size='-Os'

  3756.         _cflags_noopt='-O1'

  3757.         _flags_filter=icc_flags

  3758.     elif $_cc -v 2>&1 | grep -q xlc; then

  3759.         _type=xlc

  3760.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3761.         _cflags_speed='-O5'

  3762.         _cflags_size='-O5 -qcompact'

  3763.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3764.         _type=ccc

  3765.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3766.         _DEPFLAGS='-M'

  3767.         _cflags_speed='-fast'

  3768.         _cflags_size='-O1'

  3769.         _flags_filter=ccc_flags

  3770.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3771.         test -d "$sysroot" || die "No valid sysroot specified."

  3772.         _type=armcc

  3773.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3774.         armcc_conf="$PWD/armcc.conf"

  3775.         $_cc --arm_linux_configure                 \

  3776.              --arm_linux_config_file="$armcc_conf" \

  3777.              --configure_sysroot="$sysroot"        \

  3778.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3779.              die "Error creating armcc configuration file."

  3780.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3781.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3782.         as_default="${cross_prefix}gcc"

  3783.         _depflags='-MMD'

  3784.         _cflags_speed='-O3'

  3785.         _cflags_size='-Os'

  3786.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3787.         _type=tms470

  3788.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3789.         _flags='--gcc --abi=eabi -me'

  3790.         _cc_e='-ppl -fe=$@'

  3791.         _cc_o='-fe=$@'

  3792.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3793.         _cflags_speed='-O3 -mf=5'

  3794.         _cflags_size='-O3 -mf=2'

  3795.         _flags_filter=tms470_flags

  3796.     elif $_cc -v 2>&1 | grep -q clang; then

  3797.         _type=clang

  3798.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3799.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3800.         _cflags_speed='-O3'

  3801.         _cflags_size='-Os'

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

  3803.         _type=suncc

  3804.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3805.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3806.         _DEPFLAGS='-xM1 -xc99'

  3807.         _ldflags='-std=c99'

  3808.         _cflags_speed='-O5'

  3809.         _cflags_size='-O5 -xspace'

  3810.         _flags_filter=suncc_flags

  3811.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3812.         _type=pathscale

  3813.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3814.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3815.         _cflags_speed='-O2'

  3816.         _cflags_size='-Os'

  3817.         _flags_filter='filter_out -Wdisabled-optimization'

  3818.     elif $_cc -v 2>&1 | grep -q Open64; then

  3819.         _type=open64

  3820.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3821.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3822.         _cflags_speed='-O2'

  3823.         _cflags_size='-Os'

  3824.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3825.     elif $_cc -V 2>&1 | grep -q Portland; then

  3826.         _type=pgi

  3827.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3828.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  3829.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  3830.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  3831.         _cflags_noopt="-O"

  3832.         _flags_filter=pgi_flags

  3833.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  3834.         _type=armasm

  3835.         _ident=$($_cc | head -n1)

  3836.         # 4509: "This form of conditional instruction is deprecated"

  3837.         _flags="-nologo -ignore 4509"

  3838.         _flags_filter=armasm_flags

  3839.     elif $_cc 2>&1 | grep -q Intel; then

  3840.         _type=icl

  3841.         _ident=$($_cc 2>&1 | head -n1)

  3842.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  3843.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  3844.         # versions (tested) as well.

  3845.         _cflags_speed="-O2"

  3846.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  3847.         if $_cc 2>&1 | grep -q Linker; then

  3848.             _ld_o='-out:$@'

  3849.         else

  3850.             _ld_o='-Fe$@'

  3851.         fi

  3852.         _cc_o='-Fo$@'

  3853.         _cc_e='-P'

  3854.         _flags_filter=icl_flags

  3855.         _ld_lib='lib%.a'

  3856.         _ld_path='-libpath:'

  3857.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  3858.         _flags='-nologo -Qdiag-error:4044,10157'

  3859.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  3860.         # with MSVC which enables it by default.

  3861.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  3862.         disable stripping

  3863.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  3864.         _type=msvc

  3865.         _ident=$($_cc 2>&1 | head -n1)

  3866.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  3867.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  3868.         _cflags_speed="-O2"

  3869.         _cflags_size="-O1"

  3870.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  3871.             _ld_o='-out:$@'

  3872.         else

  3873.             _ld_o='-Fe$@'

  3874.         fi

  3875.         _cc_o='-Fo$@'

  3876.         _cc_e='-P -Fi$@'

  3877.         _flags_filter=msvc_flags

  3878.         _ld_lib='lib%.a'

  3879.         _ld_path='-libpath:'

  3880.         _flags='-nologo'

  3881.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'

  3882.         disable stripping

  3883.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  3884.         _type=cparser

  3885.         _ident=$($_cc --version | head -n1)

  3886.         _depflags='-MMD'

  3887.         _cflags_speed='-O4'

  3888.         _cflags_size='-O2'

  3889.         _flags_filter=cparser_flags

  3890.     fi

  3891. 

  3892.     eval ${pfx}_type=\$_type

  3893.     eval ${pfx}_ident=\$_ident

  3894. }

  3895. 

  3896. set_ccvars(){

  3897.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  3898.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  3899.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  3900. 

  3901.     if [ -n "$_depflags" ]; then

  3902.         eval ${1}_DEPFLAGS=\$_depflags

  3903.     else

  3904.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  3905.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  3906.         eval DEP${1}FLAGS=\$_flags

  3907.     fi

  3908. }

  3909. 

  3910. probe_cc cc "$cc" "true"

  3911. cflags_filter=$_flags_filter

  3912. cflags_speed=$_cflags_speed

  3913. cflags_size=$_cflags_size

  3914. cflags_noopt=$_cflags_noopt

  3915. add_cflags $_flags $_cflags

  3916. cc_ldflags=$_ldflags

  3917. set_ccvars CC

  3918. 

  3919. probe_cc hostcc "$host_cc"

  3920. host_cflags_filter=$_flags_filter

  3921. add_host_cflags  $_flags $_cflags

  3922. set_ccvars HOSTCC

  3923. 

  3924. test -n "$cc_type" && enable $cc_type ||

  3925.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  3926. 

  3927. : ${as_default:=$cc}

  3928. : ${objcc_default:=$cc}

  3929. : ${dep_cc_default:=$cc}

  3930. : ${ld_default:=$cc}

  3931. : ${host_ld_default:=$host_cc}

  3932. set_default ar as objcc dep_cc ld host_ld windres

  3933. 

  3934. probe_cc as "$as"

  3935. asflags_filter=$_flags_filter

  3936. add_asflags $_flags $_cflags

  3937. set_ccvars AS

  3938. 

  3939. probe_cc objcc "$objcc"

  3940. objcflags_filter=$_flags_filter

  3941. add_objcflags $_flags $_cflags

  3942. set_ccvars OBJC

  3943. 

  3944. probe_cc ld "$ld"

  3945. ldflags_filter=$_flags_filter

  3946. add_ldflags $_flags $_ldflags

  3947. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  3948. LD_O=${_ld_o-$LD_O}

  3949. LD_LIB=${_ld_lib-$LD_LIB}

  3950. LD_PATH=${_ld_path-$LD_PATH}

  3951. 

  3952. probe_cc hostld "$host_ld"

  3953. host_ldflags_filter=$_flags_filter

  3954. add_host_ldflags $_flags $_ldflags

  3955. HOSTLD_O=${_ld_o-$HOSTLD_O}

  3956. 

  3957. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  3958.     probe_cc depcc "$dep_cc"

  3959.     CCDEP=${_DEPCMD:-$DEPCMD}

  3960.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  3961.     DEPCCFLAGS=$_flags

  3962. fi

  3963. 

  3964. if $ar 2>&1 | grep -q Microsoft; then

  3965.     arflags="-nologo"

  3966.     ar_o='-out:$@'

  3967. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  3968.     arflags="rq"

  3969.     ar_o='$@'

  3970. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  3971.     arflags='-Xany -r -c'

  3972.     ar_o='$@'

  3973. elif $ar 2>&1 | grep -q "\[D\] "; then

  3974.     arflags="rcD"

  3975.     ar_o='$@'

  3976. else

  3977.     arflags="rc"

  3978.     ar_o='$@'

  3979. fi

  3980. 

  3981. add_cflags $extra_cflags

  3982. add_cxxflags $extra_cxxflags

  3983. add_objcflags $extra_objcflags

  3984. add_asflags $extra_cflags

  3985. 

  3986. if test -n "$sysroot"; then

  3987.     case "$cc_type" in

  3988.         gcc|llvm_gcc|clang)

  3989.             add_cppflags --sysroot="$sysroot"

  3990.             add_ldflags --sysroot="$sysroot"

  3991. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  3992.             add_cppflags -isysroot "$sysroot"

  3993.             add_ldflags -isysroot "$sysroot"

  3994.         ;;

  3995.         tms470)

  3996.             add_cppflags -I"$sysinclude"

  3997.             add_ldflags  --sysroot="$sysroot"

  3998.         ;;

  3999.     esac

  4000. fi

  4001. 

  4002. if test "$cpu" = host; then

  4003.     enabled cross_compile &&

  4004.         die "--cpu=host makes no sense when cross-compiling."

  4005. 

  4006.     case "$cc_type" in

  4007.         gcc|llvm_gcc)

  4008.             check_native(){

  4009.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4010.                 sed -n "/cc1.*$1=/{

  4011.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4012.                             p

  4013.                             q

  4014.                         }" $TMPE

  4015.             }

  4016.             cpu=$(check_native -march || check_native -mcpu)

  4017.         ;;

  4018.         clang)

  4019.             check_native(){

  4020.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4021.                 sed -n "/cc1.*-target-cpu /{

  4022.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4023.                             p

  4024.                             q

  4025.                         }" $TMPE

  4026.             }

  4027.             cpu=$(check_native -march)

  4028.         ;;

  4029.     esac

  4030. 

  4031.     test "${cpu:-host}" = host &&

  4032.         die "--cpu=host not supported with compiler $cc"

  4033. fi

  4034. 

  4035. # Deal with common $arch aliases

  4036. case "$arch" in

  4037.     aarch64|arm64)

  4038.         arch="aarch64"

  4039.     ;;

  4040.     arm*|iPad*|iPhone*)

  4041.         arch="arm"

  4042.     ;;

  4043.     mips*|IP*)

  4044.         case "$arch" in

  4045.         *el)

  4046.             add_cppflags -EL

  4047.             add_ldflags -EL

  4048.         ;;

  4049.         *eb)

  4050.             add_cppflags -EB

  4051.             add_ldflags -EB

  4052.         ;;

  4053.         esac

  4054.         arch="mips"

  4055.     ;;

  4056.     parisc*|hppa*)

  4057.         arch="parisc"

  4058.     ;;

  4059.     "Power Macintosh"|ppc*|powerpc*)

  4060.         arch="ppc"

  4061.     ;;

  4062.     s390|s390x)

  4063.         arch="s390"

  4064.     ;;

  4065.     sh4|sh)

  4066.         arch="sh4"

  4067.     ;;

  4068.     sun4u|sparc*)

  4069.         arch="sparc"

  4070.     ;;

  4071.     tilegx|tile-gx)

  4072.         arch="tilegx"

  4073.     ;;

  4074.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4075.         arch="x86"

  4076.     ;;

  4077. esac

  4078. 

  4079. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4080. enable $arch

  4081. 

  4082. # Add processor-specific flags

  4083. if enabled aarch64; then

  4084. 

  4085.     case $cpu in

  4086.         armv*)

  4087.             cpuflags="-march=$cpu"

  4088.         ;;

  4089.         *)

  4090.             cpuflags="-mcpu=$cpu"

  4091.         ;;

  4092.     esac

  4093. 

  4094. elif enabled alpha; then

  4095. 

  4096.     cpuflags="-mcpu=$cpu"

  4097. 

  4098. elif enabled arm; then

  4099. 

  4100.     check_arm_arch() {

  4101.         check_cpp_condition stddef.h \

  4102.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4103.             $cpuflags

  4104.     }

  4105. 

  4106.     probe_arm_arch() {

  4107.         if   check_arm_arch 4;        then echo armv4;

  4108.         elif check_arm_arch 4T;       then echo armv4t;

  4109.         elif check_arm_arch 5;        then echo armv5;

  4110.         elif check_arm_arch 5E;       then echo armv5e;

  4111.         elif check_arm_arch 5T;       then echo armv5t;

  4112.         elif check_arm_arch 5TE;      then echo armv5te;

  4113.         elif check_arm_arch 5TEJ;     then echo armv5te;

  4114.         elif check_arm_arch 6;        then echo armv6;

  4115.         elif check_arm_arch 6J;       then echo armv6j;

  4116.         elif check_arm_arch 6K;       then echo armv6k;

  4117.         elif check_arm_arch 6Z;       then echo armv6z;

  4118.         elif check_arm_arch 6ZK;      then echo armv6zk;

  4119.         elif check_arm_arch 6T2;      then echo armv6t2;

  4120.         elif check_arm_arch 7;        then echo armv7;

  4121.         elif check_arm_arch 7A  7_A;  then echo armv7-a;

  4122.         elif check_arm_arch 7S;       then echo armv7-a;

  4123.         elif check_arm_arch 7R  7_R;  then echo armv7-r;

  4124.         elif check_arm_arch 7M  7_M;  then echo armv7-m;

  4125.         elif check_arm_arch 7EM 7E_M; then echo armv7-m;

  4126.         elif check_arm_arch 8A  8_A;  then echo armv8-a;

  4127.         fi

  4128.     }

  4129. 

  4130.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4131. 

  4132.     case $cpu in

  4133.         armv*)

  4134.             cpuflags="-march=$cpu"

  4135.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4136.         ;;

  4137.         *)

  4138.             cpuflags="-mcpu=$cpu"

  4139.             case $cpu in

  4140.                 cortex-a*)                               subarch=armv7a  ;;

  4141.                 cortex-r*)                               subarch=armv7r  ;;

  4142.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4143.                 arm11*)                                  subarch=armv6   ;;

  4144.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4145.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4146.                 *)                             subarch=$(probe_arm_arch) ;;

  4147.             esac

  4148.         ;;

  4149.     esac

  4150. 

  4151.     case "$subarch" in

  4152.         armv5t*)    enable fast_clz                ;;

  4153.         armv[6-8]*)

  4154.             enable fast_clz

  4155.             disabled fast_unaligned || enable fast_unaligned

  4156.             ;;

  4157.     esac

  4158. 

  4159. elif enabled avr32; then

  4160. 

  4161.     case $cpu in

  4162.         ap7[02]0[0-2])

  4163.             subarch="avr32_ap"

  4164.             cpuflags="-mpart=$cpu"

  4165.         ;;

  4166.         ap)

  4167.             subarch="avr32_ap"

  4168.             cpuflags="-march=$cpu"

  4169.         ;;

  4170.         uc3[ab]*)

  4171.             subarch="avr32_uc"

  4172.             cpuflags="-mcpu=$cpu"

  4173.         ;;

  4174.         uc)

  4175.             subarch="avr32_uc"

  4176.             cpuflags="-march=$cpu"

  4177.         ;;

  4178.     esac

  4179. 

  4180. elif enabled bfin; then

  4181. 

  4182.     cpuflags="-mcpu=$cpu"

  4183. 

  4184. elif enabled mips; then

  4185. 

  4186.     cpuflags="-march=$cpu"

  4187. 

  4188.     case $cpu in

  4189.         24kc)

  4190.             disable mips32r6

  4191.             disable mips64r2

  4192.             disable mips64r6

  4193.             disable mipsfpu

  4194.             disable mipsdsp

  4195.             disable mipsdspr2

  4196.             disable msa

  4197.         ;;

  4198.         24kf*)

  4199.             disable mips32r6

  4200.             disable mips64r2

  4201.             disable mips64r6

  4202.             disable mipsdsp

  4203.             disable mipsdspr2

  4204.             disable msa

  4205.         ;;

  4206.         24kec|34kc|1004kc)

  4207.             disable mips32r6

  4208.             disable mips64r2

  4209.             disable mips64r6

  4210.             disable mipsfpu

  4211.             disable mipsdspr2

  4212.             disable msa

  4213.         ;;

  4214.         24kef*|34kf*|1004kf*)

  4215.             disable mips32r6

  4216.             disable mips64r2

  4217.             disable mips64r6

  4218.             disable mipsdspr2

  4219.             disable msa

  4220.         ;;

  4221.         74kc)

  4222.             disable mips32r6

  4223.             disable mips64r2

  4224.             disable mips64r6

  4225.             disable mipsfpu

  4226.             disable msa

  4227.         ;;

  4228.         74kf)

  4229.             disable mips32r6

  4230.             disable mips64r2

  4231.             disable mips64r6

  4232.             disable msa

  4233.         ;;

  4234.         p5600)

  4235.             disable mips32r6

  4236.             disable mips64r2

  4237.             disable mips64r6

  4238.             disable mipsdsp

  4239.             disable mipsdspr2

  4240.             check_cflags "-mtune=p5600" &&

  4241.             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&

  4242.             add_asflags "-mfp64"

  4243.         ;;

  4244.         i6400)

  4245.             disable mips32r2

  4246.             disable mips32r6

  4247.             disable mips64r2

  4248.             disable mipsdsp

  4249.             disable mipsdspr2

  4250.             check_cflags "-mtune=i6400 -mabi=64" &&

  4251.             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&

  4252.             check_ldflags "-mabi=64" &&

  4253.             add_asflags "-mfp64"

  4254.         ;;

  4255.         loongson*)

  4256.             disable mips32r2

  4257.             disable mips32r6

  4258.             disable mips64r2

  4259.             disable mips64r6

  4260.             disable mipsfpu

  4261.             disable mipsdsp

  4262.             disable mipsdspr2

  4263.             disable msa

  4264.             enable local_aligned_8 local_aligned_16 local_aligned_32

  4265.             enable simd_align_16

  4266.             enable fast_64bit

  4267.             enable fast_clz

  4268.             enable fast_cmov

  4269.             enable fast_unaligned

  4270.             disable aligned_stack

  4271.             case $cpu in

  4272.                 loongson3*)

  4273.                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4274.                 ;;

  4275.                 loongson2e)

  4276.                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4277.                 ;;

  4278.                 loongson2f)

  4279.                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4280.                 ;;

  4281.             esac

  4282.         ;;

  4283.         generic)

  4284.             # We do not disable anything. Is up to the user to disable

  4285.             # the unwanted features.

  4286.         ;;

  4287.         *)

  4288.             # Unknown CPU. Disable everything.

  4289.             warn "unknown CPU. Disabling all MIPS optimizations."

  4290.             disable mipsfpu

  4291.             disable mips32r2

  4292.             disable mips32r6

  4293.             disable mips64r2

  4294.             disable mips64r6

  4295.             disable mipsdsp

  4296.             disable mipsdspr2

  4297.             disable msa

  4298.         ;;

  4299.     esac

  4300. 

  4301. elif enabled ppc; then

  4302. 

  4303.     disable ldbrx

  4304. 

  4305.     case $(tolower $cpu) in

  4306.         601|ppc601|powerpc601)

  4307.             cpuflags="-mcpu=601"

  4308.             disable altivec

  4309.         ;;

  4310.         603*|ppc603*|powerpc603*)

  4311.             cpuflags="-mcpu=603"

  4312.             disable altivec

  4313.         ;;

  4314.         604*|ppc604*|powerpc604*)

  4315.             cpuflags="-mcpu=604"

  4316.             disable altivec

  4317.         ;;

  4318.         g3|75*|ppc75*|powerpc75*)

  4319.             cpuflags="-mcpu=750"

  4320.             disable altivec

  4321.         ;;

  4322.         g4|745*|ppc745*|powerpc745*)

  4323.             cpuflags="-mcpu=7450"

  4324.             disable vsx

  4325.         ;;

  4326.         74*|ppc74*|powerpc74*)

  4327.             cpuflags="-mcpu=7400"

  4328.             disable vsx

  4329.         ;;

  4330.         g5|970|ppc970|powerpc970)

  4331.             cpuflags="-mcpu=970"

  4332.             disable vsx

  4333.         ;;

  4334.         power[3-6]*)

  4335.             cpuflags="-mcpu=$cpu"

  4336.             disable vsx

  4337.         ;;

  4338.         power[7-8]*)

  4339.             cpuflags="-mcpu=$cpu"

  4340.         ;;

  4341.         cell)

  4342.             cpuflags="-mcpu=cell"

  4343.             enable ldbrx

  4344.             disable vsx

  4345.         ;;

  4346.         e500mc)

  4347.             cpuflags="-mcpu=e500mc"

  4348.             disable altivec

  4349.         ;;

  4350.         e500v2)

  4351.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4352.             disable altivec

  4353.             disable dcbzl

  4354.         ;;

  4355.         e500)

  4356.             cpuflags="-mcpu=8540 -mhard-float"

  4357.             disable altivec

  4358.             disable dcbzl

  4359.         ;;

  4360.     esac

  4361. 

  4362. elif enabled sparc; then

  4363. 

  4364.     case $cpu in

  4365.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4366.             cpuflags="-mcpu=$cpu"

  4367.         ;;

  4368.         ultrasparc*|niagara[234])

  4369.             cpuflags="-mcpu=$cpu"

  4370.         ;;

  4371.     esac

  4372. 

  4373. elif enabled x86; then

  4374. 

  4375.     case $cpu in

  4376.         i[345]86|pentium)

  4377.             cpuflags="-march=$cpu"

  4378.             disable i686

  4379.             disable mmx

  4380.         ;;

  4381.         # targets that do NOT support nopl and conditional mov (cmov)

  4382.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4383.             cpuflags="-march=$cpu"

  4384.             disable i686

  4385.         ;;

  4386.         # targets that do support nopl and conditional mov (cmov)

  4387.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4388.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)

  4389.             cpuflags="-march=$cpu"

  4390.             enable i686

  4391.             enable fast_cmov

  4392.         ;;

  4393.         # targets that do support conditional mov but on which it's slow

  4394.         pentium4|pentium4m|prescott|nocona)

  4395.             cpuflags="-march=$cpu"

  4396.             enable i686

  4397.             disable fast_cmov

  4398.         ;;

  4399.     esac

  4400. 

  4401. fi

  4402. 

  4403. if [ "$cpu" != generic ]; then

  4404.     add_cflags  $cpuflags

  4405.     add_asflags $cpuflags

  4406.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4407. fi

  4408. 

  4409. # compiler sanity check

  4410. check_exec <<EOF

  4411. int main(void){ return 0; }

  4412. EOF

  4413. if test "$?" != 0; then

  4414.     echo "$cc is unable to create an executable file."

  4415.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4416.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4417.         echo "Only do this if you know what cross compiling means."

  4418.     fi

  4419.     die "C compiler test failed."

  4420. fi

  4421. 

  4422. add_cppflags -D_ISOC99_SOURCE

  4423. add_cxxflags -D__STDC_CONSTANT_MACROS

  4424. check_cflags -std=c99

  4425. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4426. #include <stdlib.h>

  4427. EOF

  4428. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4429. #include <stdlib.h>

  4430. EOF

  4431. 

  4432. add_host_cppflags -D_ISOC99_SOURCE

  4433. check_host_cflags -std=c99

  4434. check_host_cflags -Wall

  4435. check_host_cflags -O3

  4436. 

  4437. check_64bit(){

  4438.     arch32=$1

  4439.     arch64=$2

  4440.     expr=$3

  4441.     check_code cc "" "int test[2*($expr) - 1]" &&

  4442.         subarch=$arch64 || subarch=$arch32

  4443. }

  4444. 

  4445. case "$arch" in

  4446.     aarch64|alpha|ia64)

  4447.         spic=$shared

  4448.     ;;

  4449.     mips)

  4450.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4451.         spic=$shared

  4452.     ;;

  4453.     parisc)

  4454.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4455.         spic=$shared

  4456.     ;;

  4457.     ppc)

  4458.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4459.         spic=$shared

  4460.     ;;

  4461.     s390)

  4462.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4463.         spic=$shared

  4464.     ;;

  4465.     sparc)

  4466.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4467.         spic=$shared

  4468.     ;;

  4469.     x86)

  4470.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4471.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4472.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4473.             subarch=x86_64

  4474.         if test "$subarch" = "x86_64"; then

  4475.             spic=$shared

  4476.         fi

  4477.     ;;

  4478.     ppc)

  4479.         check_cc <<EOF && subarch="ppc64"

  4480.         int test[(int)sizeof(char*) - 7];

  4481. EOF

  4482.     ;;

  4483. esac

  4484. 

  4485. enable $subarch

  4486. enabled spic && enable_weak pic

  4487. 

  4488. # OS specific

  4489. case $target_os in

  4490.     aix)

  4491.         SHFLAGS=-shared

  4492.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4493.         enabled shared && add_ldflags -Wl,-brtl

  4494.         ;;

  4495.     android)

  4496.         disable symver

  4497.         enable section_data_rel_ro

  4498.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4499.         SLIB_INSTALL_LINKS=

  4500.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4501.         ;;

  4502.     haiku)

  4503.         prefix_default="/boot/common"

  4504.         network_extralibs="-lnetwork"

  4505.         host_libs=

  4506.         ;;

  4507.     sunos)

  4508.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4509.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4510.         network_extralibs="-lsocket -lnsl"

  4511.         add_cppflags -D__EXTENSIONS__

  4512.         # When using suncc to build, the Solaris linker will mark

  4513.         # an executable with each instruction set encountered by

  4514.         # the Solaris assembler.  As our libraries contain their own

  4515.         # guards for processor-specific code, instead suppress

  4516.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4517.         enabled_all suncc x86 &&

  4518.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4519.             add_ldflags -Wl,-M,mapfile

  4520.         nm_default='nm -P -g'

  4521.         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'

  4522.         ;;

  4523.     netbsd)

  4524.         disable symver

  4525.         oss_indev_extralibs="-lossaudio"

  4526.         oss_outdev_extralibs="-lossaudio"

  4527.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4528.         ;;

  4529.     openbsd|bitrig)

  4530.         disable symver

  4531.         SHFLAGS='-shared'

  4532.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4533.         SLIB_INSTALL_LINKS=

  4534.         oss_indev_extralibs="-lossaudio"

  4535.         oss_outdev_extralibs="-lossaudio"

  4536.         ;;

  4537.     dragonfly)

  4538.         disable symver

  4539.         ;;

  4540.     freebsd)

  4541.         ;;

  4542.     bsd/os)

  4543.         add_extralibs -lpoll -lgnugetopt

  4544.         strip="strip -d"

  4545.         ;;

  4546.     darwin)

  4547.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4548.         install_name_dir_default='$(SHLIBDIR)'

  4549.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4550.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4551.         strip="${strip} -x"

  4552.         add_ldflags -Wl,-dynamic,-search_paths_first

  4553.         SLIBSUF=".dylib"

  4554.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4555.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4556.         objformat="macho"

  4557.         enabled x86_64 && objformat="macho64"

  4558.         enabled_any pic shared x86_64 ||

  4559.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4560.         check_header dispatch/dispatch.h

  4561.         ;;

  4562.     msys*)

  4563.         die "Native MSYS builds are discouraged, please use the MINGW environment.";

  4564.         ;;

  4565.     mingw32*|mingw64*)

  4566.         if test $target_os = "mingw32ce"; then

  4567.             disable network

  4568.         else

  4569.             target_os=mingw32

  4570.         fi

  4571.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4572.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4573.         LIBTARGET=i386

  4574.         if enabled x86_64; then

  4575.             LIBTARGET="i386:x86-64"

  4576.         elif enabled arm; then

  4577.             LIBTARGET=arm-wince

  4578.         fi

  4579.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4580.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4581.         shlibdir_default="$bindir_default"

  4582.         SLIBPREF=""

  4583.         SLIBSUF=".dll"

  4584.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4585.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4586.         dlltool="${cross_prefix}dlltool"

  4587.         if check_cmd lib.exe -list; then

  4588.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4589.             if enabled x86_64; then

  4590.                 LIBTARGET=x64

  4591.             fi

  4592.         elif check_cmd $dlltool --version; then

  4593.             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)'

  4594.         fi

  4595.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4596.         SLIB_INSTALL_LINKS=

  4597.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4598.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4599.         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'

  4600.         objformat="win32"

  4601.         ranlib=:

  4602.         enable dos_paths

  4603.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4604.         # Lets work around some stupidity in binutils.

  4605.         # ld will strip relocations from executables even though we need them

  4606.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4607.         # however ld then forgets what the entry point should be (oops) so we

  4608.         # have to manually (re)set it.

  4609.         if enabled x86_32; then

  4610.             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4611.         elif enabled x86_64; then

  4612.             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4613.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4614.             # Set image base >4GB for extra entropy with HEASLR

  4615.             add_ldexeflags -Wl,--image-base,0x140000000

  4616.             append SHFLAGS -Wl,--image-base,0x180000000

  4617.         fi

  4618.         ;;

  4619.     win32|win64)

  4620.         disable symver

  4621.         if enabled shared; then

  4622.             # Link to the import library instead of the normal static library

  4623.             # for shared libs.

  4624.             LD_LIB='%.lib'

  4625.             # Cannot build both shared and static libs with MSVC or icl.

  4626.             disable static

  4627.         fi

  4628.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4629.         shlibdir_default="$bindir_default"

  4630.         SLIBPREF=""

  4631.         SLIBSUF=".dll"

  4632.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4633.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4634.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4635.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4636.         SLIB_INSTALL_LINKS=

  4637.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4638.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4639.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4640.         objformat="win32"

  4641.         ranlib=:

  4642.         enable dos_paths

  4643.         ;;

  4644.     cygwin*)

  4645.         target_os=cygwin

  4646.         shlibdir_default="$bindir_default"

  4647.         SLIBPREF="cyg"

  4648.         SLIBSUF=".dll"

  4649.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4650.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4651.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4652.         SLIB_INSTALL_LINKS=

  4653.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4654.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4655.         objformat="win32"

  4656.         enable dos_paths

  4657.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4658.         ;;

  4659.     *-dos|freedos|opendos)

  4660.         network_extralibs="-lsocket"

  4661.         objformat="coff"

  4662.         enable dos_paths

  4663.         add_cppflags -U__STRICT_ANSI__

  4664.         ;;

  4665.     linux)

  4666.         enable dv1394

  4667.         enable section_data_rel_ro

  4668.         ;;

  4669.     irix*)

  4670.         target_os=irix

  4671.         ranlib="echo ignoring ranlib"

  4672.         ;;

  4673.     os/2*)

  4674.         strip="lxlite -CS"

  4675.         ln_s="cp -f"

  4676.         objformat="aout"

  4677.         add_cppflags -D_GNU_SOURCE

  4678.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4679.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4680.         LIBSUF="_s.a"

  4681.         SLIBPREF=""

  4682.         SLIBSUF=".dll"

  4683.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'

  4684.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4685.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \

  4686.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \

  4687.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \

  4688.             echo EXPORTS >> $(SUBDIR)$(NAME).def; \

  4689.             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'

  4690.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \

  4691.             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'

  4692.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'

  4693.         enable dos_paths

  4694.         enable_weak os2threads

  4695.         ;;

  4696.     gnu/kfreebsd)

  4697.         add_cppflags -D_BSD_SOURCE

  4698.         ;;

  4699.     gnu)

  4700.         ;;

  4701.     qnx)

  4702.         add_cppflags -D_QNX_SOURCE

  4703.         network_extralibs="-lsocket"

  4704.         ;;

  4705.     symbian)

  4706.         SLIBSUF=".dll"

  4707.         enable dos_paths

  4708.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4709.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4710.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4711.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4712.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4713.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4714.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4715.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4716.         ;;

  4717.     osf1)

  4718.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4719.         ;;

  4720.     minix)

  4721.         ;;

  4722.     plan9)

  4723.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4724.                      -D_REENTRANT_SOURCE        \

  4725.                      -D_RESEARCH_SOURCE         \

  4726.                      -DFD_SETSIZE=96            \

  4727.                      -DHAVE_SOCK_OPTS

  4728.         add_compat strtod.o strtod=avpriv_strtod

  4729.         network_extralibs='-lbsd'

  4730.         exeobjs=compat/plan9/main.o

  4731.         disable ffserver

  4732.         cp_f='cp'

  4733.         ;;

  4734.     none)

  4735.         ;;

  4736.     *)

  4737.         die "Unknown OS '$target_os'."

  4738.         ;;

  4739. esac

  4740. 

  4741. # test if creating links works

  4742. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  4743. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  4744. mkdir "$link_dest"

  4745. $ln_s "$link_dest" "$link_name"

  4746. touch "$link_dest/test_file"

  4747. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  4748.     # create link to source path

  4749.     [ -e src ] && rm src

  4750.     $ln_s "$source_path" src

  4751.     source_link=src

  4752. else

  4753.     # creating directory links doesn't work

  4754.     # fall back to using the full source path

  4755.     source_link="$source_path"

  4756. fi

  4757. # cleanup

  4758. rm -r "$link_dest"

  4759. rm -r "$link_name"

  4760. 

  4761. # determine libc flavour

  4762. 

  4763. probe_libc(){

  4764.     pfx=$1

  4765.     pfx_no_=${pfx%_}

  4766.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4767.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4768.         eval ${pfx}libc_type=uclibc

  4769.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4770.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4771.         eval ${pfx}libc_type=glibc

  4772.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4773.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4774.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4775.         eval ${pfx}libc_type=newlib

  4776.         add_${pfx}cppflags -U__STRICT_ANSI__

  4777.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4778.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4779.         eval ${pfx}libc_type=mingw64

  4780.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4781.             add_compat msvcrt/snprintf.o

  4782.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4783.         fi

  4784.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4785.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4786.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4787.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4788.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4789.         eval ${pfx}libc_type=mingw32

  4790.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4791.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4792.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4793.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4794.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4795.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4796.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4797.         eval ${pfx}libc_type=msvcrt

  4798.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4799.             if [ "$pfx" = host_ ]; then

  4800.                 add_host_cppflags -Dsnprintf=_snprintf

  4801.             else

  4802.                 add_compat strtod.o strtod=avpriv_strtod

  4803.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4804.                                              _snprintf=avpriv_snprintf  \

  4805.                                              vsnprintf=avpriv_vsnprintf

  4806.             fi

  4807.         fi

  4808.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4809.         # 0x601 by default unless something else is set by the user.

  4810.         # This can easily lead to us detecting functions only present

  4811.         # in such new versions and producing binaries requiring windows 7.0.

  4812.         # Therefore explicitly set the default to XP unless the user has

  4813.         # set something else on the command line.

  4814.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4815.         # family. For these cases, configure is free to use any functions

  4816.         # found in the SDK headers by default. (Alternatively, we could force

  4817.         # _WIN32_WINNT to 0x0602 in that case.)

  4818.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4819.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4820. #ifdef WINAPI_FAMILY

  4821. #include <winapifamily.h>

  4822. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4823. #error not desktop

  4824. #endif

  4825. #endif

  4826. EOF

  4827.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4828.         eval ${pfx}libc_type=klibc

  4829.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4830.         eval ${pfx}libc_type=bionic

  4831.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4832.         eval ${pfx}libc_type=solaris

  4833.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4834.     fi

  4835.     check_${pfx}cc <<EOF

  4836. #include <time.h>

  4837. void *v = localtime_r;

  4838. EOF

  4839. 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

  4840. #include <time.h>

  4841. void *v = localtime_r;

  4842. EOF

  4843. 

  4844. }

  4845. 

  4846. probe_libc

  4847. test -n "$libc_type" && enable libc_$libc_type

  4848. probe_libc host_

  4849. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  4850. 

  4851. case $libc_type in

  4852.     bionic)

  4853.         add_compat strtod.o strtod=avpriv_strtod

  4854.         ;;

  4855. esac

  4856. 

  4857. # hacks for compiler/libc/os combinations

  4858. 

  4859. if enabled_all tms470 libc_glibc; then

  4860.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  4861.     add_cppflags -D__USER_LABEL_PREFIX__=

  4862.     add_cppflags -D__builtin_memset=memset

  4863.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  4864.     add_cflags   -pds=48    # incompatible redefinition of macro

  4865. fi

  4866. 

  4867. if enabled_all ccc libc_glibc; then

  4868.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  4869. fi

  4870. 

  4871. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  4872.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  4873. 

  4874. esc(){

  4875.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  4876. }

  4877. 

  4878. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  4879. 

  4880. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  4881. 

  4882. set_default libdir

  4883. : ${shlibdir_default:="$libdir"}

  4884. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  4885. 

  4886. set_default $PATHS_LIST

  4887. set_default nm

  4888. 

  4889. # we need to build at least one lib type

  4890. if ! enabled_any static shared; then

  4891.     cat <<EOF

  4892. At least one library type must be built.

  4893. Specify --enable-static to build the static libraries or --enable-shared to

  4894. build the shared libraries as well. To only build the shared libraries specify

  4895. --disable-static in addition to --enable-shared.

  4896. EOF

  4897.     exit 1;

  4898. fi

  4899. 

  4900. die_license_disabled() {

  4901.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  4902. }

  4903. 

  4904. die_license_disabled_gpl() {

  4905.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  4906. }

  4907. 

  4908. die_license_disabled gpl frei0r

  4909. die_license_disabled gpl libcdio

  4910. die_license_disabled gpl librubberband

  4911. die_license_disabled gpl libsmbclient

  4912. die_license_disabled gpl libutvideo

  4913. die_license_disabled gpl libvidstab

  4914. die_license_disabled gpl libx264

  4915. die_license_disabled gpl libx265

  4916. die_license_disabled gpl libxavs

  4917. die_license_disabled gpl libxvid

  4918. die_license_disabled gpl x11grab

  4919. 

  4920. die_license_disabled nonfree cuda

  4921. die_license_disabled nonfree libfaac

  4922. die_license_disabled nonfree nvenc

  4923. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  4924. enabled gpl && die_license_disabled_gpl nonfree openssl

  4925. 

  4926. die_license_disabled version3 gmp

  4927. die_license_disabled version3 libopencore_amrnb

  4928. die_license_disabled version3 libopencore_amrwb

  4929. die_license_disabled version3 libsmbclient

  4930. die_license_disabled version3 libvo_amrwbenc

  4931. 

  4932. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  4933. 

  4934. disabled optimizations || check_cflags -fomit-frame-pointer

  4935. 

  4936. enable_weak_pic() {

  4937.     disabled pic && return

  4938.     enable pic

  4939.     add_cppflags -DPIC

  4940.     case "$target_os" in

  4941.     mingw*|cygwin*)

  4942.         ;;

  4943.     *)

  4944.         add_cflags -fPIC

  4945.         ;;

  4946.     esac

  4947.     add_asflags  -fPIC

  4948. }

  4949. 

  4950. enabled pic && enable_weak_pic

  4951. 

  4952. check_cc <<EOF || die "Symbol mangling check failed."

  4953. int ff_extern;

  4954. EOF

  4955. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  4956. extern_prefix=${sym%%ff_extern*}

  4957. 

  4958. check_cc <<EOF && enable_weak inline_asm

  4959. void foo(void) { __asm__ volatile ("" ::); }

  4960. EOF

  4961. 

  4962. _restrict=

  4963. for restrict_keyword in restrict __restrict__ __restrict; do

  4964.     check_cc <<EOF && _restrict=$restrict_keyword && break

  4965. void foo(char * $restrict_keyword p);

  4966. EOF

  4967. done

  4968. 

  4969. check_cc <<EOF && enable pragma_deprecated

  4970. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  4971. EOF

  4972. 

  4973. check_cc <<EOF && enable attribute_packed

  4974. struct { int x; } __attribute__((packed)) x;

  4975. EOF

  4976. 

  4977. check_cc <<EOF && enable attribute_may_alias

  4978. union { int x; } __attribute__((may_alias)) x;

  4979. EOF

  4980. 

  4981. check_cc <<EOF || die "endian test failed"

  4982. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  4983. EOF

  4984. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  4985. 

  4986. if ! enabled ppc64 || enabled bigendian; then

  4987.     disable vsx

  4988. fi

  4989. 

  4990. check_gas() {

  4991.     log "check_gas using '$as' as AS"

  4992.     # :vararg is used on aarch64, arm and ppc altivec

  4993.     check_as <<EOF || return 1

  4994. .macro m n, y:vararg=0

  4995. \n: .int \y

  4996. .endm

  4997. m x

  4998. EOF

  4999.     # .altmacro is only used in arm asm

  5000.     ! enabled arm || check_as <<EOF || return 1

  5001. .altmacro

  5002. EOF

  5003.     enable gnu_as

  5004.     return 0

  5005. }

  5006. 

  5007. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5008.     nogas=:

  5009.     enabled_any arm aarch64 && nogas=die

  5010.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5011.     as_noop=-v

  5012. 

  5013.     case $as_type in

  5014.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5015.         gcc)  gaspp_as_type=gas ;;

  5016.         *)    gaspp_as_type=$as_type ;;

  5017.     esac

  5018. 

  5019.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5020. 

  5021.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5022.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5023.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5024. 

  5025.     if ! check_gas ; then

  5026.         as=${gas:=$as}

  5027.         check_gas || \

  5028.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5029.     fi

  5030. 

  5031.     check_as <<EOF && enable as_func

  5032. .func test

  5033. .endfunc

  5034. EOF

  5035. fi

  5036. 

  5037. check_inline_asm inline_asm_labels '"1:\n"'

  5038. 

  5039. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5040. 

  5041. if enabled aarch64; then

  5042.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5043.     # internal assembler in clang 3.3 does not support this instruction

  5044.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5045.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5046. 

  5047.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5048. 

  5049. elif enabled alpha; then

  5050. 

  5051.     check_cflags -mieee

  5052. 

  5053. elif enabled arm; then

  5054. 

  5055.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5056. 

  5057.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5058. float func(float a, float b){ return a+b; }

  5059. EOF

  5060. 

  5061.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5062. 

  5063.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5064.         enable vfp_args

  5065.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5066.         enable vfp_args

  5067.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5068.         case "${cross_prefix:-$cc}" in

  5069.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5070.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5071. __asm__ (".eabi_attribute 28, 1");

  5072. int main(void) { return 0; }

  5073. EOF

  5074.         esac

  5075.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5076.     fi

  5077. 

  5078.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5079.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5080.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5081.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5082.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5083.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5084.     enabled setend  && check_insn setend  'setend be'

  5085. 

  5086.     [ $target_os = linux ] || [ $target_os = android ] ||

  5087.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5088.             $ARCH_EXT_LIST_ARM

  5089. 

  5090.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5091. 

  5092.     check_as <<EOF && enable as_dn_directive

  5093. ra .dn d0.i16

  5094. .unreq ra

  5095. EOF

  5096. 

  5097.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5098.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  5099. .object_arch armv4

  5100. EOF

  5101. 

  5102.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5103. 

  5104. elif enabled mips; then

  5105. 

  5106.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5107.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5108.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5109. 

  5110.     # Enable minimum ISA based on selected options

  5111.     if enabled mips64; then

  5112.         if enabled mips64r6; then

  5113.             check_ldflags "-mips64r6" &&

  5114.             add_cflags "-mips64r6" &&

  5115.             add_asflags "-mips64r6" &&

  5116.             check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||

  5117.             disable mips64r6

  5118.         fi

  5119.         if disabled mips64r6 && enabled mips64r2; then

  5120.             check_ldflags "-mips64r2" &&

  5121.             add_cflags "-mips64r2" &&

  5122.             add_asflags "-mips64r2" &&

  5123.             check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||

  5124.             disable mips64r2

  5125.         fi

  5126.         if disabled mips64r6 && disabled mips64r2; then

  5127.             check_ldflags "-mips64" &&

  5128.             add_cflags "-mips64" &&

  5129.             add_asflags "-mips64" &&

  5130.             check_inline_asm mips64r1 '"daddi $0, $0, 0"' ||

  5131.             disable mips64r1

  5132.         fi

  5133.     else

  5134.         if enabled mips32r6; then

  5135.             check_ldflags "-mips32r6" &&

  5136.             add_cflags "-mips32r6" &&

  5137.             add_asflags "-mips32r6" &&

  5138.             check_inline_asm mips32r6 '"aui $0, $0, 0"' ||

  5139.             disable mips32r6

  5140.         fi

  5141.         if disabled mips32r6 && enabled mips32r2; then

  5142.             check_ldflags "-mips32r2" &&

  5143.             add_cflags "-mips32r2" &&

  5144.             add_asflags "-mips32r2" &&

  5145.             check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||

  5146.             disable mips32r2

  5147.         fi

  5148.         if disabled mips32r6 && disabled mips32r2; then

  5149.             check_ldflags "-mips32" &&

  5150.             add_cflags "-mips32" &&

  5151.             add_asflags "-mips32" &&

  5152.             check_inline_asm mips32r1 '"addi $0, $0, 0"' ||

  5153.             disable mips32r1

  5154.         fi

  5155.     fi

  5156. 

  5157.     # MIPS FPU

  5158.     if enabled mipsfpu; then

  5159.         check_ldflags "-mhard-float" &&

  5160.         add_cflags "-mhard-float" &&

  5161.         add_asflags "-mhard-float" &&

  5162.         check_inline_asm mipsfpu '"cvt.d.l $f0, $f2"' ||

  5163.         disable mipsfpu

  5164.     fi

  5165. 

  5166.     # MSA and DSP support require ISA revision level 2 or greater

  5167.     if enabled mips32r2 || enabled mips64r2 || enabled mips32r6 || enabled mips64r6; then

  5168.         # MSA must be used with -mfp64 and -mhard-float

  5169.         if enabled mipsfpu; then

  5170.             if enabled msa; then

  5171.                 check_ldflags "-mfp64 -mmsa" &&

  5172.                 add_cflags "-mfp64 -mmsa" &&

  5173.                 add_asflags "-mfp64 -mmsa" &&

  5174.                 check_inline_asm msa '"addvi.b $w0, $w1, 1"' &&

  5175.                 check_header msa.h ||

  5176.                 disable msa

  5177.             fi

  5178.         else

  5179.             disable msa

  5180.         fi

  5181. 

  5182.         if enabled mipsdsp; then

  5183.             check_ldflags "-mdsp" &&

  5184.             add_cflags "-mdsp" &&

  5185.             add_asflags "-mdsp" &&

  5186.             check_inline_asm mipsdsp '"addu.qb $t0, $t1, $t2"' ||

  5187.             disable mipsdsp

  5188.         fi

  5189.         if enabled mipsdspr2; then

  5190.             check_ldflags "-mdspr2" &&

  5191.             add_cflags "-mdspr2" &&

  5192.             add_asflags "-mdspr2" &&

  5193.             check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"' ||

  5194.             disable mipsdspr2

  5195.         fi

  5196.     fi

  5197. 

  5198. elif enabled parisc; then

  5199. 

  5200.     if enabled gcc; then

  5201.         case $($cc -dumpversion) in

  5202.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5203.         esac

  5204.     fi

  5205. 

  5206. elif enabled ppc; then

  5207. 

  5208.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5209. 

  5210.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5211.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5212.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5213.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5214. 

  5215.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5216.     if enabled altivec; then

  5217.         check_cflags -maltivec -mabi=altivec &&

  5218.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5219.         check_cflags -faltivec

  5220. 

  5221.         # check if our compiler supports Motorola AltiVec C API

  5222.         check_cc <<EOF || disable altivec

  5223. $inc_altivec_h

  5224. int main(void) {

  5225.     vector signed int v1 = (vector signed int) { 0 };

  5226.     vector signed int v2 = (vector signed int) { 1 };

  5227.     v1 = vec_add(v1, v2);

  5228.     return 0;

  5229. }

  5230. EOF

  5231. 

  5232.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5233.     fi

  5234. 

  5235.     if enabled vsx; then

  5236.         check_cflags -mvsx &&

  5237.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5238.     fi

  5239. 

  5240.     if enabled power8; then

  5241.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5242.     fi

  5243. 

  5244. elif enabled x86; then

  5245. 

  5246.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5247.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5248. 

  5249.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5250. 

  5251.     # check whether EBP is available on x86

  5252.     # As 'i' is stored on the stack, this program will crash

  5253.     # if the base pointer is used to access it because the

  5254.     # base pointer is cleared in the inline assembly code.

  5255.     check_exec_crash <<EOF && enable ebp_available

  5256. volatile int i=0;

  5257. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5258. return i;

  5259. EOF

  5260. 

  5261.     # check whether EBX is available on x86

  5262.     check_inline_asm ebx_available '""::"b"(0)' &&

  5263.         check_inline_asm ebx_available '"":::"%ebx"'

  5264. 

  5265.     # check whether xmm clobbers are supported

  5266.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5267. 

  5268.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5269.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5270. 

  5271.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5272.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5273.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5274. 

  5275.     if ! disabled_any asm mmx yasm; then

  5276.         if check_cmd $yasmexe --version; then

  5277.             enabled x86_64 && yasm_extra="-m amd64"

  5278.             yasm_debug="-g dwarf2"

  5279.         elif check_cmd nasm -v; then

  5280.             yasmexe=nasm

  5281.             yasm_debug="-g -F dwarf"

  5282.             if enabled x86_64; then

  5283.                 case "$objformat" in

  5284.                     elf)   objformat=elf64 ;;

  5285.                     win32) objformat=win64 ;;

  5286.                 esac

  5287.             fi

  5288.         fi

  5289. 

  5290.         YASMFLAGS="-f $objformat $yasm_extra"

  5291.         enabled pic               && append YASMFLAGS "-DPIC"

  5292.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5293.         case "$objformat" in

  5294.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5295.         esac

  5296. 

  5297.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5298.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5299.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5300.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5301.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5302.         check_yasm "CPU amdnop" || disable cpunop

  5303.     fi

  5304. 

  5305.     case "$cpu" in

  5306.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5307.             disable fast_clz

  5308.         ;;

  5309.     esac

  5310. 

  5311. fi

  5312. 

  5313. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5314. 

  5315. check_ldflags -Wl,--as-needed

  5316. check_ldflags -Wl,-z,noexecstack

  5317. 

  5318. if check_func dlopen; then

  5319.     ldl=

  5320. elif check_func dlopen -ldl; then

  5321.     ldl=-ldl

  5322. fi

  5323. 

  5324. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5325. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5326. frei0r_filter_extralibs='$ldl'

  5327. frei0r_src_filter_extralibs='$ldl'

  5328. ladspa_filter_extralibs='$ldl'

  5329. nvenc_encoder_extralibs='$ldl'

  5330. 

  5331. if ! disabled network; then

  5332.     check_func getaddrinfo $network_extralibs

  5333.     check_func inet_aton $network_extralibs

  5334. 

  5335.     check_type netdb.h "struct addrinfo"

  5336.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5337.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5338.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5339.     check_type poll.h "struct pollfd"

  5340.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5341.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5342.     check_type netinet/in.h "struct sockaddr_in6"

  5343.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5344.     check_type "sys/types.h sys/socket.h" socklen_t

  5345. 

  5346.     # Prefer arpa/inet.h over winsock2

  5347.     if check_header arpa/inet.h ; then

  5348.         check_func closesocket

  5349.     elif check_header winsock2.h ; then

  5350.         check_func_headers winsock2.h closesocket -lws2 &&

  5351.             network_extralibs="-lws2" ||

  5352.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5353.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5354.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5355. 

  5356.         check_type ws2tcpip.h socklen_t

  5357.         check_type ws2tcpip.h "struct addrinfo"

  5358.         check_type ws2tcpip.h "struct group_source_req"

  5359.         check_type ws2tcpip.h "struct ip_mreq_source"

  5360.         check_type ws2tcpip.h "struct ipv6_mreq"

  5361.         check_type winsock2.h "struct pollfd"

  5362.         check_struct winsock2.h "struct sockaddr" sa_len

  5363.         check_type ws2tcpip.h "struct sockaddr_in6"

  5364.         check_type ws2tcpip.h "struct sockaddr_storage"

  5365.     else

  5366.         disable network

  5367.     fi

  5368. fi

  5369. 

  5370. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5371. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5372. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5373. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5374. check_builtin sarestart signal.h "SA_RESTART"

  5375. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5376. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5377. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5378. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5379. 

  5380. case "$custom_allocator" in

  5381.     jemalloc)

  5382.         # jemalloc by default does not use a prefix

  5383.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5384.     ;;

  5385.     tcmalloc)

  5386.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5387.         malloc_prefix=tc_

  5388.     ;;

  5389. esac

  5390. 

  5391. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5392. check_func  ${malloc_prefix}memalign            && enable memalign

  5393. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5394. 

  5395. check_func  access

  5396. check_func  arc4random

  5397. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5398. check_func  fcntl

  5399. check_func  fork

  5400. check_func  gethrtime

  5401. check_func  getopt

  5402. check_func  getrusage

  5403. check_func  gettimeofday

  5404. check_func  isatty

  5405. check_func  mach_absolute_time

  5406. check_func  mkstemp

  5407. check_func  mmap

  5408. check_func  mprotect

  5409. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5410. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5411. check_func  sched_getaffinity

  5412. check_func  setrlimit

  5413. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5414. check_func  strerror_r

  5415. check_func  sysconf

  5416. check_func  sysctl

  5417. check_func  usleep

  5418. 

  5419. check_func_headers conio.h kbhit

  5420. check_func_headers io.h setmode

  5421. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5422. check_func_headers stdlib.h getenv

  5423. check_func_headers sys/stat.h lstat

  5424. 

  5425. check_func_headers windows.h CoTaskMemFree -lole32

  5426. check_func_headers windows.h GetProcessAffinityMask

  5427. check_func_headers windows.h GetProcessTimes

  5428. check_func_headers windows.h GetSystemTimeAsFileTime

  5429. check_func_headers windows.h MapViewOfFile

  5430. check_func_headers windows.h PeekNamedPipe

  5431. check_func_headers windows.h SetConsoleTextAttribute

  5432. check_func_headers windows.h SetConsoleCtrlHandler

  5433. check_func_headers windows.h Sleep

  5434. check_func_headers windows.h VirtualAlloc

  5435. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5436. check_func_headers glob.h glob

  5437. enabled xlib &&

  5438.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5439. 

  5440. check_header direct.h

  5441. check_header dirent.h

  5442. check_header dlfcn.h

  5443. check_header d3d11.h

  5444. check_header dxva.h

  5445. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5446. check_header io.h

  5447. check_header libcrystalhd/libcrystalhd_if.h

  5448. check_header mach/mach_time.h

  5449. check_header malloc.h

  5450. check_header net/udplite.h

  5451. check_header poll.h

  5452. check_header sys/mman.h

  5453. check_header sys/param.h

  5454. check_header sys/resource.h

  5455. check_header sys/select.h

  5456. check_header sys/time.h

  5457. check_header sys/un.h

  5458. check_header termios.h

  5459. check_header unistd.h

  5460. check_header valgrind/valgrind.h

  5461. check_header vdpau/vdpau.h

  5462. check_header vdpau/vdpau_x11.h

  5463. check_header VideoDecodeAcceleration/VDADecoder.h

  5464. check_header VideoToolbox/VideoToolbox.h

  5465. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5466. check_header windows.h

  5467. check_header X11/extensions/XvMClib.h

  5468. check_header asm/types.h

  5469. 

  5470. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5471. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5472. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5473. check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5474. 

  5475. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5476. 

  5477. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5478. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5479. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5480. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5481. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5482. 

  5483. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5484. check_type "va/va.h" "VADecPictureParameterBufferVP9"

  5485. 

  5486. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5487. 

  5488. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5489. 

  5490. if ! disabled w32threads && ! enabled pthreads; then

  5491.     check_func_headers "windows.h process.h" _beginthreadex &&

  5492.         enable w32threads || disable w32threads

  5493.     if ! enabled w32threads && enabled winrt; then

  5494.         check_func_headers "windows.h" CreateThread &&

  5495.             enable w32threads || disable w32threads

  5496.     fi

  5497. fi

  5498. 

  5499. # check for some common methods of building with pthread support

  5500. # do this before the optional library checks as some of them require pthreads

  5501. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5502.     enable pthreads

  5503.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5504.         add_cflags -pthread

  5505.         add_extralibs -pthread

  5506.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5507.         add_cflags -pthreads

  5508.         add_extralibs -pthreads

  5509.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5510.         add_cflags -ldl -pthread

  5511.         add_extralibs -ldl -pthread

  5512.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5513.         add_extralibs -lpthreadGC2

  5514.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5515.         :

  5516.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5517.         disable pthreads

  5518.     fi

  5519.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5520. fi

  5521. 

  5522. 

  5523. if enabled pthreads; then

  5524.   check_func pthread_cancel

  5525. fi

  5526. 

  5527. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5528. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5529. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5530. 

  5531. check_lib math.h sin -lm && LIBM="-lm"

  5532. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5533. 

  5534. atan2f_args=2

  5535. copysign_args=2

  5536. hypot_args=2

  5537. ldexpf_args=2

  5538. powf_args=2

  5539. 

  5540. for func in $MATH_FUNCS; do

  5541.     eval check_mathfunc $func \${${func}_args:-1}

  5542. done

  5543. 

  5544. for func in $COMPLEX_FUNCS; do

  5545.     eval check_complexfunc $func \${${func}_args:-1}

  5546. done

  5547. 

  5548. # these are off by default, so fail if requested and not available

  5549. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5550. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5551.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5552. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5553.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5554.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5555. enabled cuda              && check_lib cuda.h cuInit -lcuda

  5556. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5557. enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }

  5558. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5559. enabled gmp               && require2 gmp gmp.h mpz_export -lgmp

  5560. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5561. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&

  5562.                                check_lib2 "dlfcn.h" dlopen -ldl; }

  5563. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5564. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5565. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5566. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5567. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5568. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5569.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5570.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5571. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5572. enabled libdcadec         && require_pkg_config "dcadec >= 0.1.0" libdcadec/dca_context.h dcadec_context_create

  5573. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5574. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5575.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5576.                                  warn "using libfdk without pkg-config"; } }

  5577. 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"

  5578. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5579. enabled fontconfig        && enable libfontconfig

  5580. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5581. enabled libfreetype       && require_libfreetype

  5582. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5583. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5584. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5585.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5586.                                done || die "ERROR: libgsm not found"; }

  5587. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5588. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5589. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5590. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5591. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5592. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5593. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5594. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5595. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5596.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5597.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5598.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5599. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5600. enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5601.                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5602.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5603.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5604.                                die "ERROR: libopenjpeg not found"; }

  5605. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5606. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5607. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5608. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5609. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5610. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5611. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5612.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5613. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5614. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5615. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5616. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5617. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5618. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5619. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5620.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5621.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5622. enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++

  5623. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5624. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5625. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5626. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5627. 

  5628. enabled libvpx            && {

  5629.     enabled libvpx_vp8_decoder && {

  5630.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5631.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5632.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5633.     }

  5634.     enabled libvpx_vp8_encoder && {

  5635.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5636.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5637.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5638.     }

  5639.     enabled libvpx_vp9_decoder && {

  5640.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5641.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5642.                 disable libvpx_vp9_decoder;

  5643.     }

  5644.     enabled libvpx_vp9_encoder && {

  5645.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5646.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5647.                 disable libvpx_vp9_encoder;

  5648.     }

  5649.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5650.         die "libvpx enabled but no supported decoders found"

  5651.     fi

  5652. }

  5653. 

  5654. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5655. enabled libwebp           && {

  5656.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5657.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5658. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5659.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5660.                                  warn "using libx264 without pkg-config"; } } &&

  5661.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5662.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5663.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5664.                                enable libx262; }

  5665. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5666.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5667.                                die "ERROR: libx265 version must be >= 68."; }

  5668. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5669. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5670. enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version

  5671. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5672. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5673.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5674.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5675. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5676.                                 { ! enabled cross_compile && {

  5677.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5678.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5679.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5680.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5681.                                die "ERROR: mmal not found"; }

  5682. enabled mmal &&

  5683.     (check_code cc interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS" ||

  5684.      die "ERROR: mmal firmware headers too old")

  5685. 

  5686. enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers

  5687. enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&

  5688.                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||

  5689.                                die "ERROR: NVENC API version 5 or older is not supported"; } &&

  5690.                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }

  5691. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5692.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5693.                                die "ERROR: openal not found"; } &&

  5694.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5695.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5696. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5697.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5698.                                die "ERROR: opencl not found"; } &&

  5699.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5700.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5701.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5702. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5703.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5704.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5705.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5706.                                die "ERROR: opengl not found."

  5707.                              }

  5708. enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  5709.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5710.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5711.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5712.                                die "ERROR: openssl not found"; }

  5713. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5714. 

  5715. # libdc1394 check

  5716. if enabled libdc1394; then

  5717.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5718.         enable libdc1394_2; } ||

  5719.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5720.         enable libdc1394_1; } ||

  5721.     die "ERROR: No version of libdc1394 found "

  5722. fi

  5723. 

  5724. if enabled gcrypt; then

  5725.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5726.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  5727.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  5728.         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)

  5729.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||

  5730.             die "ERROR: gcrypt not found"

  5731.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs

  5732.     else

  5733.         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  5734.     fi

  5735. fi

  5736. 

  5737. if ! disabled sdl; then

  5738.     SDL_CONFIG="${cross_prefix}sdl-config"

  5739.     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then

  5740.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5741.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5742.         enable sdl

  5743.     else

  5744.         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then

  5745.             sdl_cflags=$("${SDL_CONFIG}" --cflags)

  5746.             sdl_libs=$("${SDL_CONFIG}" --libs)

  5747.             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&

  5748.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5749.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5750.             enable sdl

  5751.         elif enabled sdl ; then

  5752.             die "ERROR: SDL not found"

  5753.         else

  5754.             disable sdl

  5755.         fi

  5756.     fi

  5757.     if test $target_os = "mingw32"; then

  5758.         sdl_libs="$sdl_libs -mconsole"

  5759.     fi

  5760. fi

  5761. enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs

  5762. 

  5763. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5764.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5765.     enable securetransport; }

  5766. 

  5767. disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&

  5768.                        enable schannel && add_extralibs -lSecur32; }

  5769. 

  5770. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5771. enabled makeinfo \

  5772.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5773.     && enable makeinfo_html || disable makeinfo_html

  5774. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5775. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5776. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5777. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5778. 

  5779. check_header linux/fb.h

  5780. check_header linux/videodev.h

  5781. check_header linux/videodev2.h

  5782. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5783. 

  5784. check_header sys/videoio.h

  5785. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5786. 

  5787. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5788. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5789. # w32api 3.12 had it defined wrong

  5790. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5791. 

  5792. check_type "dshow.h" IBaseFilter

  5793. 

  5794. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5795. { check_header dev/bktr/ioctl_meteor.h &&

  5796.   check_header dev/bktr/ioctl_bt848.h; } ||

  5797. { check_header machine/ioctl_meteor.h &&

  5798.   check_header machine/ioctl_bt848.h; } ||

  5799. { check_header dev/video/meteor/ioctl_meteor.h &&

  5800.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5801. check_header dev/ic/bt8xx.h

  5802. 

  5803. check_header sndio.h

  5804. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5805.     enable_safe sys/soundcard.h

  5806. else

  5807.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5808.     #include <sys/soundcard.h>

  5809.     audio_buf_info abc;

  5810. EOF

  5811. fi

  5812. check_header soundcard.h

  5813. 

  5814. enabled_any alsa_indev alsa_outdev &&

  5815.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5816. 

  5817. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&

  5818.     check_func jack_port_get_latency_range -ljack

  5819. 

  5820. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5821. 

  5822. if enabled libcdio; then

  5823.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5824.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5825.     die "ERROR: No usable libcdio/cdparanoia found"

  5826. fi

  5827. 

  5828. enabled xlib &&

  5829.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5830. 

  5831. if ! disabled libxcb; then

  5832.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5833.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5834.     } && disable x11grab && enable libxcb

  5835. 

  5836. if enabled libxcb; then

  5837.     disabled libxcb_shm || {

  5838.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5839.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5840.         } && check_header sys/shm.h && enable libxcb_shm; }

  5841. 

  5842.     disabled libxcb_xfixes || {

  5843.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5844.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5845.         } && enable libxcb_xfixes; }

  5846. 

  5847.     disabled libxcb_shape || {

  5848.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5849.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5850.         } && enable libxcb_shape; }

  5851. 

  5852.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5853.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5854. fi

  5855. fi

  5856. 

  5857. if enabled x11grab; then

  5858.     enabled xlib || die "ERROR: Xlib not found"

  5859.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5860.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5861. fi

  5862. 

  5863. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5864. 

  5865. enabled dxva2api_h &&

  5866.     check_cc <<EOF && enable dxva2api_cobj

  5867. #define _WIN32_WINNT 0x0600

  5868. #define COBJMACROS

  5869. #include <windows.h>

  5870. #include <d3d9.h>

  5871. #include <dxva2api.h>

  5872. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5873. EOF

  5874. 

  5875. enabled vaapi &&

  5876.     check_lib va/va.h vaInitialize -lva ||

  5877.     disable vaapi

  5878. 

  5879. enabled vaapi && enabled xlib &&

  5880.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  5881.     enable vaapi_x11

  5882. 

  5883. enabled vdpau &&

  5884.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  5885.     disable vdpau

  5886. 

  5887. enabled vdpau && enabled xlib &&

  5888.     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  5889.     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&

  5890.     enable vdpau_x11

  5891. 

  5892. # Funny iconv installations are not unusual, so check it after all flags have been set

  5893. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  5894. 

  5895. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  5896. 

  5897. # add some useful compiler flags if supported

  5898. check_cflags -Wdeclaration-after-statement

  5899. check_cflags -Wall

  5900. check_cflags -Wdisabled-optimization

  5901. check_cflags -Wpointer-arith

  5902. check_cflags -Wredundant-decls

  5903. check_cflags -Wwrite-strings

  5904. check_cflags -Wtype-limits

  5905. check_cflags -Wundef

  5906. check_cflags -Wmissing-prototypes

  5907. check_cflags -Wno-pointer-to-int-cast

  5908. check_cflags -Wstrict-prototypes

  5909. check_cflags -Wempty-body

  5910. enabled extra_warnings && check_cflags -Winline

  5911. enabled extra_warnings && check_cflags -Wcast-qual

  5912. 

  5913. check_disable_warning(){

  5914.     warning_flag=-W${1#-Wno-}

  5915.     test_cflags $warning_flag && add_cflags $1

  5916. }

  5917. 

  5918. check_disable_warning -Wno-parentheses

  5919. check_disable_warning -Wno-switch

  5920. check_disable_warning -Wno-format-zero-length

  5921. check_disable_warning -Wno-pointer-sign

  5922. check_disable_warning -Wno-unused-const-variable

  5923. 

  5924. # add some linker flags

  5925. check_ldflags -Wl,--warn-common

  5926. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  5927. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  5928. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  5929. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  5930. 

  5931. # add some strip flags

  5932. # -wN '..@*' is more selective than -x, but not available everywhere.

  5933. check_stripflags -wN \'..@*\' || check_stripflags -x

  5934. 

  5935. enabled neon_clobber_test &&

  5936.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5937.                   -Wl,--wrap,avcodec_decode_audio4      \

  5938.                   -Wl,--wrap,avcodec_decode_video2      \

  5939.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5940.                   -Wl,--wrap,avcodec_encode_audio2      \

  5941.                   -Wl,--wrap,avcodec_encode_video2      \

  5942.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5943.                   -Wl,--wrap,swr_convert                \

  5944.                   -Wl,--wrap,avresample_convert ||

  5945.     disable neon_clobber_test

  5946. 

  5947. enabled xmm_clobber_test &&

  5948.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5949.                   -Wl,--wrap,avcodec_decode_audio4      \

  5950.                   -Wl,--wrap,avcodec_decode_video2      \

  5951.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5952.                   -Wl,--wrap,avcodec_encode_audio2      \

  5953.                   -Wl,--wrap,avcodec_encode_video2      \

  5954.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5955.                   -Wl,--wrap,swr_convert                \

  5956.                   -Wl,--wrap,avresample_convert         \

  5957.                   -Wl,--wrap,sws_scale ||

  5958.     disable xmm_clobber_test

  5959. 

  5960. echo "X { local: *; };" > $TMPV

  5961. if test_ldflags -Wl,--version-script,$TMPV; then

  5962.     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'

  5963. elif test_ldflags -Wl,-M,$TMPV; then

  5964.     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'

  5965. fi

  5966. 

  5967. check_cc <<EOF && enable symver_asm_label

  5968. void ff_foo(void) __asm__ ("av_foo@VERSION");

  5969. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  5970. EOF

  5971.     check_cc <<EOF && enable symver_gnu_asm

  5972. __asm__(".symver ff_foo,av_foo@VERSION");

  5973. void ff_foo(void) {}

  5974. EOF

  5975. 

  5976. if [ -z "$optflags" ]; then

  5977.     if enabled small; then

  5978.         optflags=$cflags_size

  5979.     elif enabled optimizations; then

  5980.         optflags=$cflags_speed

  5981.     else

  5982.         optflags=$cflags_noopt

  5983.     fi

  5984. fi

  5985. 

  5986. check_optflags(){

  5987.     check_cflags "$@"

  5988.     enabled lto && check_ldflags "$@"

  5989. }

  5990. 

  5991. 

  5992. if enabled lto; then

  5993.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  5994.     check_cflags  -flto

  5995.     check_ldflags -flto $cpuflags

  5996.     disable inline_asm_direct_symbol_refs

  5997. fi

  5998. 

  5999. check_optflags $optflags

  6000. check_optflags -fno-math-errno

  6001. check_optflags -fno-signed-zeros

  6002. 

  6003. enabled ftrapv && check_cflags -ftrapv

  6004. 

  6005. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6006. int x;

  6007. EOF

  6008. 

  6009. 

  6010. if enabled icc; then

  6011.     # Just warnings, no remarks

  6012.     check_cflags -w1

  6013.     # -wd: Disable following warnings

  6014.     # 144, 167, 556: -Wno-pointer-sign

  6015.     # 188: enumerated type mixed with another type

  6016.     # 1292: attribute "foo" ignored

  6017.     # 1419: external declaration in primary source file

  6018.     # 10006: ignoring unknown option -fno-signed-zeros

  6019.     # 10148: ignoring unknown option -Wno-parentheses

  6020.     # 10156: ignoring option '-W'; no argument required

  6021.     # 13200: No EMMS instruction before call to function

  6022.     # 13203: No EMMS instruction before return from function

  6023.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6024.     # 11030: Warning unknown option --as-needed

  6025.     # 10156: ignoring option '-export'; no argument required

  6026.     check_ldflags -wd10156,11030

  6027.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6028.     enable ebp_available

  6029.     # The test above does not test linking

  6030.     enabled lto && disable symver_asm_label

  6031.     if enabled x86_32; then

  6032.         icc_version=$($cc -dumpversion)

  6033.         test ${icc_version%%.*} -ge 11 &&

  6034.             check_cflags -falign-stack=maintain-16-byte ||

  6035.             disable aligned_stack

  6036.     fi

  6037. elif enabled ccc; then

  6038.     # disable some annoying warnings

  6039.     add_cflags -msg_disable bitnotint

  6040.     add_cflags -msg_disable mixfuncvoid

  6041.     add_cflags -msg_disable nonstandcast

  6042.     add_cflags -msg_disable unsupieee

  6043. elif enabled gcc; then

  6044.     case $gcc_basever in

  6045.         4.9*) enabled x86 || check_optflags -fno-tree-vectorize ;;

  6046.         4.*)                 check_optflags -fno-tree-vectorize ;;

  6047.         *)    enabled x86 || check_optflags -fno-tree-vectorize ;;

  6048.     esac

  6049.     check_cflags -Werror=format-security

  6050.     check_cflags -Werror=implicit-function-declaration

  6051.     check_cflags -Werror=missing-prototypes

  6052.     check_cflags -Werror=return-type

  6053.     check_cflags -Werror=vla

  6054.     check_cflags -Wformat

  6055.     check_cflags -fdiagnostics-color=auto

  6056.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6057. elif enabled llvm_gcc; then

  6058.     check_cflags -mllvm -stack-alignment=16

  6059. elif enabled clang; then

  6060.     check_cflags -mllvm -stack-alignment=16

  6061.     check_cflags -Qunused-arguments

  6062.     check_cflags -Werror=implicit-function-declaration

  6063.     check_cflags -Werror=missing-prototypes

  6064.     check_cflags -Werror=return-type

  6065. elif enabled cparser; then

  6066.     add_cflags -Wno-missing-variable-declarations

  6067.     add_cflags -Wno-empty-statement

  6068. elif enabled armcc; then

  6069.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6070.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6071.     # 2523: use of inline assembly is deprecated

  6072.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6073.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6074.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6075.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6076.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6077.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6078. elif enabled tms470; then

  6079.     add_cflags -pds=824 -pds=837

  6080.     disable inline_asm

  6081. elif enabled pathscale; then

  6082.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6083. elif enabled_any msvc icl; then

  6084.     enabled x86_32 && disable aligned_stack

  6085.     enabled_all x86_32 debug && add_cflags -Oy-

  6086.     enabled debug && add_ldflags -debug

  6087.     enable pragma_deprecated

  6088.     if enabled icl; then

  6089.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6090.         # (correctly) on icl 13.x.

  6091.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6092.             add_cflags -Qansi-alias

  6093.         # Some inline asm is not compilable in debug

  6094.         if enabled debug; then

  6095.             disable ebp_available

  6096.             disable ebx_available

  6097.         fi

  6098.     fi

  6099.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6100.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6101.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6102.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6103.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6104.     # MSVC 2013 and newer can handle it fine.

  6105.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6106.     # happens in config.h.

  6107.     if [ $_restrict != restrict ]; then

  6108.         check_cc <<EOF || add_cflags -FIstdlib.h

  6109. __declspec($_restrict) void* foo(int);

  6110. EOF

  6111.     fi

  6112.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  6113. fi

  6114. 

  6115. for pfx in "" host_; do

  6116.     varname=${pfx%_}cc_type

  6117.     eval "type=\$$varname"

  6118.     if [ $type = "msvc" ]; then

  6119.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6120. static inline int foo(int a) { return a; }

  6121. EOF

  6122.     fi

  6123. done

  6124. 

  6125. case $as_type in

  6126.     clang)

  6127.         add_asflags -Qunused-arguments

  6128.     ;;

  6129. esac

  6130. 

  6131. case $ld_type in

  6132.     clang)

  6133.         check_ldflags -Qunused-arguments

  6134.     ;;

  6135. esac

  6136. 

  6137. case $target_os in

  6138.     osf1)

  6139.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6140.     ;;

  6141.     plan9)

  6142.         add_cppflags -Dmain=plan9_main

  6143.     ;;

  6144. esac

  6145. 

  6146. enable frame_thread_encoder

  6147. 

  6148. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6149. 

  6150. check_deps $CONFIG_LIST       \

  6151.            $CONFIG_EXTRA      \

  6152.            $HAVE_LIST         \

  6153.            $ALL_COMPONENTS    \

  6154. 

  6155. 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"

  6156. 

  6157. 

  6158. if test $target_os = "haiku"; then

  6159.     disable memalign

  6160.     disable posix_memalign

  6161. fi

  6162. 

  6163. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  6164.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  6165.     enable dxva2_lib

  6166. 

  6167. ! enabled_any memalign posix_memalign aligned_malloc &&

  6168.     enabled simd_align_16 && enable memalign_hack

  6169. 

  6170. # add_dep lib dep

  6171. # -> enable ${lib}_deps_${dep}

  6172. # -> add $dep to ${lib}_deps only once

  6173. add_dep() {

  6174.     lib=$1

  6175.     dep=$2

  6176.     enabled "${lib}_deps_${dep}" && return 0

  6177.     enable  "${lib}_deps_${dep}"

  6178.     prepend "${lib}_deps" $dep

  6179. }

  6180. 

  6181. # merge deps lib components

  6182. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6183. merge_deps() {

  6184.     lib=$1

  6185.     shift

  6186.     for comp in $*; do

  6187.         enabled $comp || continue

  6188.         eval "dep=\"\$${comp}_deps\""

  6189.         for d in $dep; do

  6190.             add_dep $lib $d

  6191.         done

  6192.     done

  6193. }

  6194. 

  6195. merge_deps libavfilter $FILTER_LIST

  6196. 

  6197. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6198. 

  6199. for thread in $THREADS_LIST; do

  6200.     if enabled $thread; then

  6201.         test -n "$thread_type" &&

  6202.             die "ERROR: Only one thread type must be selected." ||

  6203.             thread_type="$thread"

  6204.     fi

  6205. done

  6206. 

  6207. enabled zlib && add_cppflags -DZLIB_CONST

  6208. 

  6209. # conditional library dependencies, in linking order

  6210. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6211. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6212. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6213. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  6214. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6215. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6216. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6217. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6218. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6219. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6220. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6221. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6222. enabled pan_filter          && prepend avfilter_deps "swresample"

  6223. enabled pp_filter           && prepend avfilter_deps "postproc"

  6224. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6225. enabled resample_filter && prepend avfilter_deps "avresample"

  6226. enabled sab_filter          && prepend avfilter_deps "swscale"

  6227. enabled scale_filter    && prepend avfilter_deps "swscale"

  6228. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6229. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6230. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6231. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6232. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6233. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6234. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6235. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6236. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6237. 

  6238. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6239. 

  6240. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6241. 

  6242. expand_deps(){

  6243.     lib_deps=${1}_deps

  6244.     eval "deps=\$$lib_deps"

  6245.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6246.     unique $lib_deps

  6247. }

  6248. 

  6249. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6250. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6251. 

  6252. map 'expand_deps $v' $LIBRARY_LIST

  6253. 

  6254. echo "install prefix            $prefix"

  6255. echo "source path               $source_path"

  6256. echo "C compiler                $cc"

  6257. echo "C library                 $libc_type"

  6258. if test "$host_cc" != "$cc"; then

  6259.     echo "host C compiler           $host_cc"

  6260.     echo "host C library            $host_libc_type"

  6261. fi

  6262. echo "ARCH                      $arch ($cpu)"

  6263. if test "$build_suffix" != ""; then

  6264.     echo "build suffix              $build_suffix"

  6265. fi

  6266. if test "$progs_suffix" != ""; then

  6267.     echo "progs suffix              $progs_suffix"

  6268. fi

  6269. if test "$extra_version" != ""; then

  6270.     echo "version string suffix     $extra_version"

  6271. fi

  6272. echo "big-endian                ${bigendian-no}"

  6273. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6274. if enabled x86; then

  6275.     echo "${yasmexe}                      ${yasm-no}"

  6276.     echo "MMX enabled               ${mmx-no}"

  6277.     echo "MMXEXT enabled            ${mmxext-no}"

  6278.     echo "3DNow! enabled            ${amd3dnow-no}"

  6279.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6280.     echo "SSE enabled               ${sse-no}"

  6281.     echo "SSSE3 enabled             ${ssse3-no}"

  6282.     echo "AESNI enabled             ${aesni-no}"

  6283.     echo "AVX enabled               ${avx-no}"

  6284.     echo "XOP enabled               ${xop-no}"

  6285.     echo "FMA3 enabled              ${fma3-no}"

  6286.     echo "FMA4 enabled              ${fma4-no}"

  6287.     echo "i686 features enabled     ${i686-no}"

  6288.     echo "CMOV is fast              ${fast_cmov-no}"

  6289.     echo "EBX available             ${ebx_available-no}"

  6290.     echo "EBP available             ${ebp_available-no}"

  6291. fi

  6292. if enabled aarch64; then

  6293.     echo "NEON enabled              ${neon-no}"

  6294.     echo "VFP enabled               ${vfp-no}"

  6295. fi

  6296. if enabled arm; then

  6297.     echo "ARMv5TE enabled           ${armv5te-no}"

  6298.     echo "ARMv6 enabled             ${armv6-no}"

  6299.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6300.     echo "VFP enabled               ${vfp-no}"

  6301.     echo "NEON enabled              ${neon-no}"

  6302.     echo "THUMB enabled             ${thumb-no}"

  6303. fi

  6304. if enabled mips; then

  6305.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6306.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6307.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6308.     echo "MIPS MSA enabled          ${msa-no}"

  6309.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6310. fi

  6311. if enabled ppc; then

  6312.     echo "AltiVec enabled           ${altivec-no}"

  6313.     echo "VSX enabled               ${vsx-no}"

  6314.     echo "POWER8 enabled            ${power8-no}"

  6315.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6316.     echo "dcbzl available           ${dcbzl-no}"

  6317. fi

  6318. echo "debug symbols             ${debug-no}"

  6319. echo "strip symbols             ${stripping-no}"

  6320. echo "optimize for size         ${small-no}"

  6321. echo "optimizations             ${optimizations-no}"

  6322. echo "static                    ${static-no}"

  6323. echo "shared                    ${shared-no}"

  6324. echo "postprocessing support    ${postproc-no}"

  6325. echo "new filter support        ${avfilter-no}"

  6326. echo "network support           ${network-no}"

  6327. echo "threading support         ${thread_type-no}"

  6328. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6329. echo "SDL support               ${sdl-no}"

  6330. echo "opencl enabled            ${opencl-no}"

  6331. echo "JNI support               ${jni-no}"

  6332. echo "texi2html enabled         ${texi2html-no}"

  6333. echo "perl enabled              ${perl-no}"

  6334. echo "pod2man enabled           ${pod2man-no}"

  6335. echo "makeinfo enabled          ${makeinfo-no}"

  6336. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6337. test -n "$random_seed" &&

  6338.     echo "random seed               ${random_seed}"

  6339. echo

  6340. 

  6341. echo "Enabled programs:"

  6342. print_enabled '' $PROGRAM_LIST | print_in_columns

  6343. echo

  6344. 

  6345. echo "External libraries:"

  6346. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6347. echo

  6348. 

  6349. echo "Libraries:"

  6350. print_enabled '' $LIBRARY_LIST | print_in_columns

  6351. echo

  6352. 

  6353. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6354.     echo "Enabled ${type}s:"

  6355.     eval list=\$$(toupper $type)_LIST

  6356.     print_enabled '_*' $list | print_in_columns

  6357.     echo

  6358. done

  6359. 

  6360. license="LGPL version 2.1 or later"

  6361. if enabled nonfree; then

  6362.     license="nonfree and unredistributable"

  6363. elif enabled gplv3; then

  6364.     license="GPL version 3 or later"

  6365. elif enabled lgplv3; then

  6366.     license="LGPL version 3 or later"

  6367. elif enabled gpl; then

  6368.     license="GPL version 2 or later"

  6369. fi

  6370. 

  6371. echo "License: $license"

  6372. 

  6373. echo "Creating config.mak, config.h, and doc/config.texi..."

  6374. 

  6375. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6376. 

  6377. enabled stripping || strip="echo skipping strip"

  6378. 

  6379. config_files="$TMPH config.mak doc/config.texi"

  6380. 

  6381. cat > config.mak <<EOF

  6382. # Automatically generated by configure - do not modify!

  6383. ifndef FFMPEG_CONFIG_MAK

  6384. FFMPEG_CONFIG_MAK=1

  6385. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6386. prefix=$prefix

  6387. LIBDIR=\$(DESTDIR)$libdir

  6388. SHLIBDIR=\$(DESTDIR)$shlibdir

  6389. INCDIR=\$(DESTDIR)$incdir

  6390. BINDIR=\$(DESTDIR)$bindir

  6391. DATADIR=\$(DESTDIR)$datadir

  6392. DOCDIR=\$(DESTDIR)$docdir

  6393. MANDIR=\$(DESTDIR)$mandir

  6394. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6395. INSTALL_NAME_DIR=$install_name_dir

  6396. SRC_PATH=$source_path

  6397. SRC_LINK=$source_link

  6398. ifndef MAIN_MAKEFILE

  6399. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6400. endif

  6401. CC_IDENT=$cc_ident

  6402. ARCH=$arch

  6403. INTRINSICS=$intrinsics

  6404. CC=$cc

  6405. CXX=$cxx

  6406. AS=$as

  6407. OBJCC=$objcc

  6408. LD=$ld

  6409. DEPCC=$dep_cc

  6410. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6411. DEPAS=$as

  6412. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6413. YASM=$yasmexe

  6414. DEPYASM=$yasmexe

  6415. AR=$ar

  6416. ARFLAGS=$arflags

  6417. AR_O=$ar_o

  6418. RANLIB=$ranlib

  6419. STRIP=$strip

  6420. CP=cp -p

  6421. LN_S=$ln_s

  6422. CPPFLAGS=$CPPFLAGS

  6423. CFLAGS=$CFLAGS

  6424. CXXFLAGS=$CXXFLAGS

  6425. OBJCFLAGS=$OBJCFLAGS

  6426. ASFLAGS=$ASFLAGS

  6427. AS_C=$AS_C

  6428. AS_O=$AS_O

  6429. OBJCC_C=$OBJCC_C

  6430. OBJCC_E=$OBJCC_E

  6431. OBJCC_O=$OBJCC_O

  6432. CC_C=$CC_C

  6433. CC_E=$CC_E

  6434. CC_O=$CC_O

  6435. CXX_C=$CXX_C

  6436. CXX_O=$CXX_O

  6437. LD_O=$LD_O

  6438. LD_LIB=$LD_LIB

  6439. LD_PATH=$LD_PATH

  6440. DLLTOOL=$dlltool

  6441. WINDRES=$windres

  6442. DEPWINDRES=$dep_cc

  6443. DOXYGEN=$doxygen

  6444. LDFLAGS=$LDFLAGS

  6445. LDEXEFLAGS=$LDEXEFLAGS

  6446. LDLIBFLAGS=$LDLIBFLAGS

  6447. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6448. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6449. YASMFLAGS=$YASMFLAGS

  6450. BUILDSUF=$build_suffix

  6451. PROGSSUF=$progs_suffix

  6452. FULLNAME=$FULLNAME

  6453. LIBPREF=$LIBPREF

  6454. LIBSUF=$LIBSUF

  6455. LIBNAME=$LIBNAME

  6456. SLIBPREF=$SLIBPREF

  6457. SLIBSUF=$SLIBSUF

  6458. EXESUF=$EXESUF

  6459. EXTRA_VERSION=$extra_version

  6460. CCDEP=$CCDEP

  6461. CXXDEP=$CXXDEP

  6462. CCDEP_FLAGS=$CCDEP_FLAGS

  6463. ASDEP=$ASDEP

  6464. ASDEP_FLAGS=$ASDEP_FLAGS

  6465. CC_DEPFLAGS=$CC_DEPFLAGS

  6466. AS_DEPFLAGS=$AS_DEPFLAGS

  6467. HOSTCC=$host_cc

  6468. HOSTLD=$host_ld

  6469. HOSTCFLAGS=$host_cflags

  6470. HOSTCPPFLAGS=$host_cppflags

  6471. HOSTEXESUF=$HOSTEXESUF

  6472. HOSTLDFLAGS=$host_ldflags

  6473. HOSTLIBS=$host_libs

  6474. DEPHOSTCC=$host_cc

  6475. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6476. HOSTCCDEP=$HOSTCCDEP

  6477. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6478. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6479. HOSTCC_C=$HOSTCC_C

  6480. HOSTCC_O=$HOSTCC_O

  6481. HOSTLD_O=$HOSTLD_O

  6482. TARGET_EXEC=$target_exec $target_exec_args

  6483. TARGET_PATH=$target_path

  6484. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6485. CFLAGS-ffplay=$sdl_cflags

  6486. ZLIB=$($ldflags_filter -lz)

  6487. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6488. EXTRALIBS=$extralibs

  6489. COMPAT_OBJS=$compat_objs

  6490. EXEOBJS=$exeobjs

  6491. INSTALL=$install

  6492. LIBTARGET=${LIBTARGET}

  6493. SLIBNAME=${SLIBNAME}

  6494. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6495. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6496. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6497. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6498. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6499. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6500. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6501. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6502. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6503. NOREDZONE_FLAGS=$noredzone_flags

  6504. EOF

  6505. 

  6506. get_version(){

  6507.     lcname=lib${1}

  6508.     name=$(toupper $lcname)

  6509.     file=$source_path/$lcname/version.h

  6510.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6511.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6512.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6513.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6514.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6515.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6516. }

  6517. 

  6518. map 'get_version $v' $LIBRARY_LIST

  6519. 

  6520. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6521. 

  6522. print_program_libs(){

  6523.     eval "program_libs=\$${1}_libs"

  6524.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6525. }

  6526. 

  6527. map 'print_program_libs $v' $PROGRAM_LIST

  6528. 

  6529. cat > $TMPH <<EOF

  6530. /* Automatically generated by configure - do not modify! */

  6531. #ifndef FFMPEG_CONFIG_H

  6532. #define FFMPEG_CONFIG_H

  6533. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6534. #define FFMPEG_LICENSE "$(c_escape $license)"

  6535. #define CONFIG_THIS_YEAR 2016

  6536. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6537. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6538. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6539. #define av_restrict $_restrict

  6540. #define EXTERN_PREFIX "${extern_prefix}"

  6541. #define EXTERN_ASM ${extern_prefix}

  6542. #define BUILDSUF "$build_suffix"

  6543. #define SLIBSUF "$SLIBSUF"

  6544. #define HAVE_MMX2 HAVE_MMXEXT

  6545. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6546. EOF

  6547. 

  6548. test -n "$assert_level" &&

  6549.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6550. 

  6551. test -n "$malloc_prefix" &&

  6552.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6553. 

  6554. if enabled yasm; then

  6555.     append config_files $TMPASM

  6556.     printf '' >$TMPASM

  6557. fi

  6558. 

  6559. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6560. 

  6561. 

  6562. mkdir -p doc

  6563. mkdir -p tests

  6564. mkdir -p tests/api

  6565. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6566. 

  6567. print_config ARCH_   "$config_files" $ARCH_LIST

  6568. print_config HAVE_   "$config_files" $HAVE_LIST

  6569. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6570.                                      $CONFIG_EXTRA      \

  6571.                                      $ALL_COMPONENTS    \

  6572. 

  6573. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6574. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6575. 

  6576. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6577. cp_if_changed $TMPH config.h

  6578. touch .config

  6579. 

  6580. enabled yasm && cp_if_changed $TMPASM config.asm

  6581. 

  6582. cat > $TMPH <<EOF

  6583. /* Generated by ffconf */

  6584. #ifndef AVUTIL_AVCONFIG_H

  6585. #define AVUTIL_AVCONFIG_H

  6586. EOF

  6587. 

  6588. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6589. 

  6590. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6591. 

  6592. cp_if_changed $TMPH libavutil/avconfig.h

  6593. 

  6594. if test -n "$WARNINGS"; then

  6595.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6596.     enabled fatal_warnings && exit 1

  6597. fi

  6598. 

  6599. # build pkg-config files

  6600. 

  6601. lib_version(){

  6602.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6603. }

  6604. 

  6605. pkgconfig_generate(){

  6606.     name=$1

  6607.     shortname=${name#lib}${build_suffix}

  6608.     comment=$2

  6609.     version=$3

  6610.     libs=$4

  6611.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6612.     requires=${requires%, }

  6613.     enabled ${name#lib} || return 0

  6614.     mkdir -p $name

  6615.     cat <<EOF > $name/$name${build_suffix}.pc

  6616. prefix=$prefix

  6617. exec_prefix=\${prefix}

  6618. libdir=$libdir

  6619. includedir=$incdir

  6620. 

  6621. Name: $name

  6622. Description: $comment

  6623. Version: $version

  6624. Requires: $(enabled shared || echo $requires)

  6625. Requires.private: $(enabled shared && echo $requires)

  6626. Conflicts:

  6627. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6628. Libs.private: $(enabled shared && echo $libs)

  6629. Cflags: -I\${includedir}

  6630. EOF

  6631. 

  6632. mkdir -p doc/examples/pc-uninstalled

  6633. includedir=${source_path}

  6634. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6635.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6636. prefix=

  6637. exec_prefix=

  6638. libdir=\${pcfiledir}/../../../$name

  6639. includedir=${includedir}

  6640. 

  6641. Name: $name

  6642. Description: $comment

  6643. Version: $version

  6644. Requires: $requires

  6645. Conflicts:

  6646. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6647. Cflags: -I\${includedir}

  6648. EOF

  6649. }

  6650. 

  6651. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6652. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6653. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6654. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6655. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6656. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6657. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6658. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6659. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"