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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --list-decoders          show all available decoders

  67.   --list-encoders          show all available encoders

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

  69.   --list-demuxers          show all available demuxers

  70.   --list-muxers            show all available muxers

  71.   --list-parsers           show all available parsers

  72.   --list-protocols         show all available protocols

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

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

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

  76.   --list-filters           show all available filters

  77. 

  78. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  92.                            not part of the dynamic linker search path

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

  94. 

  95. Licensing options:

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

  97.                            and binaries will be under GPL [no]

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

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

  100.                            and binaries will be unredistributable [no]

  101. 

  102. Configuration options:

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

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

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

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

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

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

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

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

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

  112. 

  113. Program options:

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

  115.   --disable-ffmpeg         disable ffmpeg build

  116.   --disable-ffplay         disable ffplay build

  117.   --disable-ffprobe        disable ffprobe build

  118.   --disable-ffserver       disable ffserver build

  119. 

  120. Documentation options:

  121.   --disable-doc            do not build documentation

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

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

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

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

  126. 

  127. Component options:

  128.   --disable-avdevice       disable libavdevice build

  129.   --disable-avcodec        disable libavcodec build

  130.   --disable-avformat       disable libavformat build

  131.   --disable-swresample     disable libswresample build

  132.   --disable-swscale        disable libswscale build

  133.   --disable-postproc       disable libpostproc build

  134.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  140.   --disable-dct            disable DCT code

  141.   --disable-dwt            disable DWT code

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

  143.   --disable-lsp            disable LSP code

  144.   --disable-lzo            disable LZO decoder code

  145.   --disable-mdct           disable MDCT code

  146.   --disable-rdft           disable RDFT code

  147.   --disable-fft            disable FFT code

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

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

  150. 

  151. Hardware accelerators:

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

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

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

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

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

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

  158. 

  159. Individual component options:

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

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

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

  163.   --disable-encoders       disable all encoders

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

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

  166.   --disable-decoders       disable all decoders

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

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

  169.   --disable-hwaccels       disable all hwaccels

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

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

  172.   --disable-muxers         disable all muxers

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

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

  175.   --disable-demuxers       disable all demuxers

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

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

  178.   --disable-parsers        disable all parsers

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

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

  181.   --disable-bsfs           disable all bitstream filters

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

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

  184.   --disable-protocols      disable all protocols

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

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

  187.   --disable-indevs         disable input devices

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

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

  190.   --disable-outdevs        disable output devices

  191.   --disable-devices        disable all devices

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

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

  194.   --disable-filters        disable all filters

  195. 

  196. External library support:

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

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

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

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

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

  202.                            if openssl is not used [no]

  203.   --disable-iconv          disable iconv [autodetect]

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

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

  206.   --enable-libass          enable libass subtitles rendering,

  207.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  214.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

  226.   --enable-libmfx          enable HW acceleration through libmfx

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

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

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

  230.                            native (de)muxer exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  248.   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]

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

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

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

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

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

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

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

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

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

  258.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  273.   --disable-lzma           disable lzma [autodetect]

  274.   --enable-decklink        enable Blackmagick DeckLink I/O support [no]

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

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

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

  278.   --enable-opencl          enable OpenCL code

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

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

  281.                            if gnutls is not used [no]

  282.   --disable-sdl            disable sdl [autodetect]

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

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

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

  286.   --disable-xlib           disable xlib [autodetect]

  287.   --disable-zlib           disable zlib [autodetect]

  288. 

  289. Toolchain options:

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

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

  292.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  337. 

  338. Advanced options (experts only):

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

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

  341.   --disable-symver         disable symbol versioning

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

  343.   --disable-safe-bitstream-reader

  344.                            disable buffer boundary checking in bitreaders

  345.                            (faster, but may crash)

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

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

  348. 

  349. Optimization options (experts only):

  350.   --disable-asm            disable all assembly optimizations

  351.   --disable-altivec        disable AltiVec optimizations

  352.   --disable-vsx            disable VSX optimizations

  353.   --disable-power8         disable POWER8 optimizations

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

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

  356.   --disable-mmx            disable MMX optimizations

  357.   --disable-mmxext         disable MMXEXT optimizations

  358.   --disable-sse            disable SSE optimizations

  359.   --disable-sse2           disable SSE2 optimizations

  360.   --disable-sse3           disable SSE3 optimizations

  361.   --disable-ssse3          disable SSSE3 optimizations

  362.   --disable-sse4           disable SSE4 optimizations

  363.   --disable-sse42          disable SSE4.2 optimizations

  364.   --disable-avx            disable AVX optimizations

  365.   --disable-xop            disable XOP optimizations

  366.   --disable-fma3           disable FMA3 optimizations

  367.   --disable-fma4           disable FMA4 optimizations

  368.   --disable-avx2           disable AVX2 optimizations

  369.   --disable-armv5te        disable armv5te optimizations

  370.   --disable-armv6          disable armv6 optimizations

  371.   --disable-armv6t2        disable armv6t2 optimizations

  372.   --disable-vfp            disable VFP optimizations

  373.   --disable-neon           disable NEON optimizations

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

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

  376.   --disable-mips32r5       disable MIPS32R5 optimizations

  377.   --disable-mips64r6       disable MIPS64R6 optimizations

  378.   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations

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

  380.   --disable-msa            disable MSA optimizations

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

  382.   --disable-mmi            disable Loongson SIMD optimizations

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

  384. 

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

  386.   --disable-debug          disable debugging symbols

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

  388.   --disable-optimizations  disable compiler optimizations

  389.   --enable-extra-warnings  enable more compiler warnings

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

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

  392.                            2 causes a slowdown at runtime.

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

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

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

  396.                            Cannot be combined with --target-exec

  397.   --enable-ftrapv          Trap arithmetic overflows

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

  399.                            \$FATE_SAMPLES at make invocation time.

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

  401.                            used only for debugging purposes)

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

  403.                            should be used only for debugging purposes)

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

  405.   --disable-random

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

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

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

  409.                            (group) and PROB the probability associated with

  410.                            NAME (default 0.5).

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

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

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

  414. 

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

  416. EOF

  417.   exit 0

  418. }

  419. 

  420. quotes='""'

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

  422.     ncolors=$(tput colors)

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

  424.         bold_color=$(tput bold)

  425.         warn_color=$(tput setaf 3)

  426.         error_color=$(tput setaf 1)

  427.         reset_color=$(tput sgr0)

  428.     fi

  429.     # 72 used instead of 80 since that's the default of pr

  430.     ncols=$(tput cols)

  431. fi

  432. : ${ncols:=72}

  433. 

  434. log(){

  435.     echo "$@" >> $logfile

  436. }

  437. 

  438. log_file(){

  439.     log BEGIN $1

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

  441.     log END $1

  442. }

  443. 

  444. warn(){

  445.     log "WARNING: $*"

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

  447. }

  448. 

  449. die(){

  450.     log "$@"

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

  452.     cat <<EOF

  453. 

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

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

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

  457. EOF

  458.     if disabled logging; then

  459.         cat <<EOF

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

  461. include the log this produces with your report.

  462. EOF

  463.     else

  464.         cat <<EOF

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

  466. solve the problem.

  467. EOF

  468.     fi

  469.     exit 1

  470. }

  471. 

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

  473. toupper(){

  474.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  475. }

  476. 

  477. tolower(){

  478.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  479. }

  480. 

  481. c_escape(){

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

  483. }

  484. 

  485. sh_quote(){

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

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

  488.     echo "$v"

  489. }

  490. 

  491. cleanws(){

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

  493. }

  494. 

  495. filter(){

  496.     pat=$1

  497.     shift

  498.     for v; do

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

  500.     done

  501. }

  502. 

  503. filter_out(){

  504.     pat=$1

  505.     shift

  506.     for v; do

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

  508.     done

  509. }

  510. 

  511. map(){

  512.     m=$1

  513.     shift

  514.     for v; do eval $m; done

  515. }

  516. 

  517. add_suffix(){

  518.     suffix=$1

  519.     shift

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

  521. }

  522. 

  523. set_all(){

  524.     value=$1

  525.     shift

  526.     for var in $*; do

  527.         eval $var=$value

  528.     done

  529. }

  530. 

  531. set_weak(){

  532.     value=$1

  533.     shift

  534.     for var; do

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

  536.     done

  537. }

  538. 

  539. sanitize_var_name(){

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

  541. }

  542. 

  543. set_safe(){

  544.     var=$1

  545.     shift

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

  547. }

  548. 

  549. get_safe(){

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

  551. }

  552. 

  553. pushvar(){

  554.     for pvar in $*; do

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

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

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

  558.     done

  559. }

  560. 

  561. popvar(){

  562.     for pvar in $*; do

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

  564.         test $level = 0 && continue

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

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

  567.         eval ${pvar}_level=$level

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

  569.     done

  570. }

  571. 

  572. enable(){

  573.     set_all yes $*

  574. }

  575. 

  576. disable(){

  577.     set_all no $*

  578. }

  579. 

  580. enable_weak(){

  581.     set_weak yes $*

  582. }

  583. 

  584. disable_weak(){

  585.     set_weak no $*

  586. }

  587. 

  588. enable_safe(){

  589.     for var; do

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

  591.     done

  592. }

  593. 

  594. disable_safe(){

  595.     for var; do

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

  597.     done

  598. }

  599. 

  600. do_enable_deep(){

  601.     for var; do

  602.         enabled $var && continue

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

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

  605.         pushvar var sgs

  606.         enable_deep $sel

  607.         popvar sgs

  608.         enable_deep_weak $sgs

  609.         popvar var

  610.     done

  611. }

  612. 

  613. enable_deep(){

  614.     do_enable_deep $*

  615.     enable $*

  616. }

  617. 

  618. enable_deep_weak(){

  619.     for var; do

  620.         disabled $var && continue

  621.         pushvar var

  622.         do_enable_deep $var

  623.         popvar var

  624.         enable_weak $var

  625.     done

  626. }

  627. 

  628. enabled(){

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

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

  631. }

  632. 

  633. disabled(){

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

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

  636. }

  637. 

  638. enabled_all(){

  639.     for opt; do

  640.         enabled $opt || return 1

  641.     done

  642. }

  643. 

  644. disabled_all(){

  645.     for opt; do

  646.         disabled $opt || return 1

  647.     done

  648. }

  649. 

  650. enabled_any(){

  651.     for opt; do

  652.         enabled $opt && return 0

  653.     done

  654. }

  655. 

  656. disabled_any(){

  657.     for opt; do

  658.         disabled $opt && return 0

  659.     done

  660.     return 1

  661. }

  662. 

  663. set_default(){

  664.     for opt; do

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

  666.     done

  667. }

  668. 

  669. is_in(){

  670.     value=$1

  671.     shift

  672.     for var in $*; do

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

  674.     done

  675.     return 1

  676. }

  677. 

  678. do_check_deps(){

  679.     for cfg; do

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

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

  682.         disabled ${cfg}_checking && continue

  683.         enable ${cfg}_checking

  684.         append allopts $cfg

  685. 

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

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

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

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

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

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

  692. 

  693.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  695.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  696. 

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

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

  699.         enabled_all  $dep_all || disable $cfg

  700.         enabled_any  $dep_any || disable $cfg

  701.         disabled_any $dep_sel && disable $cfg

  702. 

  703.         if enabled $cfg; then

  704.             enable_deep $dep_sel

  705.             enable_deep_weak $dep_sgs

  706.         fi

  707. 

  708.         disable ${cfg}_checking

  709.     done

  710. }

  711. 

  712. check_deps(){

  713.     unset allopts

  714. 

  715.     do_check_deps "$@"

  716. 

  717.     for cfg in $allopts; do

  718.         enabled $cfg || continue

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

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

  721.     done

  722. }

  723. 

  724. print_config(){

  725.     pfx=$1

  726.     files=$2

  727.     shift 2

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

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

  730.         {

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

  732.             v = \$2;

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

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

  735.             for (f in files) {

  736.                 file = files[f];

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

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

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

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

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

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

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

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

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

  746.                     yesno = \$2;

  747.                     c2 = tolower(c);

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

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

  750.                 }

  751.             }

  752.         }"

  753. }

  754. 

  755. print_enabled(){

  756.     suf=$1

  757.     shift

  758.     for v; do

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

  760.     done

  761. }

  762. 

  763. append(){

  764.     var=$1

  765.     shift

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

  767. }

  768. 

  769. prepend(){

  770.     var=$1

  771.     shift

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

  773. }

  774. 

  775. unique(){

  776.     var=$1

  777.     uniq_list=""

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

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

  780.     done

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

  782. }

  783. 

  784. add_cppflags(){

  785.     append CPPFLAGS "$@"

  786. }

  787. 

  788. add_cflags(){

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

  790. }

  791. 

  792. add_cxxflags(){

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

  794. }

  795. 

  796. add_asflags(){

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

  798. }

  799. 

  800. add_ldflags(){

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

  802. }

  803. 

  804. add_ldexeflags(){

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

  806. }

  807. 

  808. add_ldlibflags(){

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

  810. }

  811. 

  812. add_stripflags(){

  813.     append ASMSTRIPFLAGS "$@"

  814. }

  815. 

  816. add_extralibs(){

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

  818. }

  819. 

  820. add_host_cppflags(){

  821.     append host_cppflags "$@"

  822. }

  823. 

  824. add_host_cflags(){

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

  826. }

  827. 

  828. add_host_ldflags(){

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

  830. }

  831. 

  832. add_compat(){

  833.     append compat_objs $1

  834.     shift

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

  836. }

  837. 

  838. check_cmd(){

  839.     log "$@"

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

  841. }

  842. 

  843. check_stat(){

  844.     log check_stat "$@"

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

  846. }

  847. 

  848. cc_o(){

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

  850. }

  851. 

  852. cc_e(){

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

  854. }

  855. 

  856. check_cc(){

  857.     log check_cc "$@"

  858.     cat > $TMPC

  859.     log_file $TMPC

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

  861. }

  862. 

  863. check_cxx(){

  864.     log check_cxx "$@"

  865.     cat > $TMPCPP

  866.     log_file $TMPCPP

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

  868. }

  869. 

  870. check_oc(){

  871.     log check_oc "$@"

  872.     cat > $TMPM

  873.     log_file $TMPM

  874.     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM

  875. }

  876. 

  877. check_cpp(){

  878.     log check_cpp "$@"

  879.     cat > $TMPC

  880.     log_file $TMPC

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

  882. }

  883. 

  884. as_o(){

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

  886. }

  887. 

  888. check_as(){

  889.     log check_as "$@"

  890.     cat > $TMPS

  891.     log_file $TMPS

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

  893. }

  894. 

  895. check_inline_asm(){

  896.     log check_inline_asm "$@"

  897.     name="$1"

  898.     code="$2"

  899.     shift 2

  900.     disable $name

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

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

  903. EOF

  904. }

  905. 

  906. check_insn(){

  907.     log check_insn "$@"

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

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

  910. }

  911. 

  912. check_yasm(){

  913.     log check_yasm "$@"

  914.     echo "$1" > $TMPS

  915.     log_file $TMPS

  916.     shift 1

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

  918. }

  919. 

  920. ld_o(){

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

  922. }

  923. 

  924. check_ld(){

  925.     log check_ld "$@"

  926.     type=$1

  927.     shift 1

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

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

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

  931.     flags=$($ldflags_filter $flags)

  932.     libs=$($ldflags_filter $libs)

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

  934. }

  935. 

  936. print_include(){

  937.     hdr=$1

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

  939.         echo "#include $hdr"    ||

  940.         echo "#include <$hdr>"

  941. }

  942. 

  943. check_code(){

  944.     log check_code "$@"

  945.     check=$1

  946.     headers=$2

  947.     code=$3

  948.     shift 3

  949.     {

  950.         for hdr in $headers; do

  951.             print_include $hdr

  952.         done

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

  954.     } | check_$check "$@"

  955. }

  956. 

  957. check_cppflags(){

  958.     log check_cppflags "$@"

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

  960. int x;

  961. EOF

  962. }

  963. 

  964. test_cflags(){

  965.     log test_cflags "$@"

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

  967.     check_cc "$@" <<EOF

  968. int x;

  969. EOF

  970. }

  971. 

  972. check_cflags(){

  973.     log check_cflags "$@"

  974.     test_cflags "$@" && add_cflags "$@"

  975. }

  976. 

  977. check_cxxflags(){

  978.     log check_cxxflags "$@"

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

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

  981. int x;

  982. EOF

  983. }

  984. 

  985. test_ldflags(){

  986.     log test_ldflags "$@"

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

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

  989. EOF

  990. }

  991. 

  992. check_ldflags(){

  993.     log check_ldflags "$@"

  994.     test_ldflags "$@" && add_ldflags "$@"

  995. }

  996. 

  997. test_stripflags(){

  998.     log test_stripflags "$@"

  999.     # call check_cc to get a fresh TMPO

  1000.     check_cc <<EOF

  1001. int main(void) { return 0; }

  1002. EOF

  1003.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1004. }

  1005. 

  1006. check_stripflags(){

  1007.     log check_stripflags "$@"

  1008.     test_stripflags "$@" && add_stripflags "$@"

  1009. }

  1010. 

  1011. check_header(){

  1012.     log check_header "$@"

  1013.     header=$1

  1014.     shift

  1015.     disable_safe $header

  1016.     check_cpp "$@" <<EOF && enable_safe $header

  1017. #include <$header>

  1018. int x;

  1019. EOF

  1020. }

  1021. 

  1022. check_header_oc(){

  1023.     log check_header_oc "$@"

  1024.     rm -f -- "$TMPO"

  1025.     header=$1

  1026.     shift

  1027.     disable_safe $header

  1028.     {

  1029.        echo "#include <$header>"

  1030.        echo "int main(void) { return 0; }"

  1031.     } | check_oc && check_stat "$TMPO" && enable_safe $headers

  1032. }

  1033. 

  1034. check_func(){

  1035.     log check_func "$@"

  1036.     func=$1

  1037.     shift

  1038.     disable $func

  1039.     check_ld "cc" "$@" <<EOF && enable $func

  1040. extern int $func();

  1041. int main(void){ $func(); }

  1042. EOF

  1043. }

  1044. 

  1045. check_mathfunc(){

  1046.     log check_mathfunc "$@"

  1047.     func=$1

  1048.     narg=$2

  1049.     shift 2

  1050.     test $narg = 2 && args="f, g" || args="f"

  1051.     disable $func

  1052.     check_ld "cc" "$@" <<EOF && enable $func

  1053. #include <math.h>

  1054. float foo(float f, float g) { return $func($args); }

  1055. int main(void){ return (int) foo; }

  1056. EOF

  1057. }

  1058. 

  1059. check_func_headers(){

  1060.     log check_func_headers "$@"

  1061.     headers=$1

  1062.     funcs=$2

  1063.     shift 2

  1064.     {

  1065.         for hdr in $headers; do

  1066.             print_include $hdr

  1067.         done

  1068.         for func in $funcs; do

  1069.             echo "long check_$func(void) { return (long) $func; }"

  1070.         done

  1071.         echo "int main(void) { return 0; }"

  1072.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1073. }

  1074. 

  1075. check_class_headers_cpp(){

  1076.     log check_class_headers_cpp "$@"

  1077.     headers=$1

  1078.     classes=$2

  1079.     shift 2

  1080.     {

  1081.         for hdr in $headers; do

  1082.             echo "#include <$hdr>"

  1083.         done

  1084.         echo "int main(void) { "

  1085.         i=1

  1086.         for class in $classes; do

  1087.             echo "$class obj$i;"

  1088.             i=$(expr $i + 1)

  1089.         done

  1090.         echo "return 0; }"

  1091.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1092. }

  1093. 

  1094. check_cpp_condition(){

  1095.     log check_cpp_condition "$@"

  1096.     header=$1

  1097.     condition=$2

  1098.     shift 2

  1099.     check_cpp "$@" <<EOF

  1100. #include <$header>

  1101. #if !($condition)

  1102. #error "unsatisfied condition: $condition"

  1103. #endif

  1104. EOF

  1105. }

  1106. 

  1107. check_lib(){

  1108.     log check_lib "$@"

  1109.     header="$1"

  1110.     func="$2"

  1111.     shift 2

  1112.     check_header $header && check_func $func "$@" && add_extralibs "$@"

  1113. }

  1114. 

  1115. check_lib2(){

  1116.     log check_lib2 "$@"

  1117.     headers="$1"

  1118.     funcs="$2"

  1119.     shift 2

  1120.     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"

  1121. }

  1122. 

  1123. check_lib_cpp(){

  1124.     log check_lib_cpp "$@"

  1125.     headers="$1"

  1126.     classes="$2"

  1127.     shift 2

  1128.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1129. }

  1130. 

  1131. check_pkg_config(){

  1132.     log check_pkg_config "$@"

  1133.     pkgandversion="$1"

  1134.     pkg="${1%% *}"

  1135.     headers="$2"

  1136.     funcs="$3"

  1137.     shift 3

  1138.     check_cmd $pkg_config --exists --print-errors $pkgandversion || return

  1139.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1140.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1141.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1142.         set_safe "${pkg}_cflags" $pkg_cflags   &&

  1143.         set_safe "${pkg}_libs"   $pkg_libs

  1144. }

  1145. 

  1146. check_exec(){

  1147.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1148. }

  1149. 

  1150. check_exec_crash(){

  1151.     code=$(cat)

  1152. 

  1153.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1154.     # are safe but may not be available everywhere.  Thus we use

  1155.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1156.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1157.     # is not defined by standard C so it is used conditionally.

  1158. 

  1159.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1160. #include <signal.h>

  1161. static void sighandler(int sig){

  1162.     raise(SIGTERM);

  1163. }

  1164. int foo(void){

  1165.     $code

  1166. }

  1167. int (*func_ptr)(void) = foo;

  1168. int main(void){

  1169.     signal(SIGILL, sighandler);

  1170.     signal(SIGFPE, sighandler);

  1171.     signal(SIGSEGV, sighandler);

  1172. #ifdef SIGBUS

  1173.     signal(SIGBUS, sighandler);

  1174. #endif

  1175.     return func_ptr();

  1176. }

  1177. EOF

  1178. }

  1179. 

  1180. check_type(){

  1181.     log check_type "$@"

  1182.     headers=$1

  1183.     type=$2

  1184.     shift 2

  1185.     disable_safe "$type"

  1186.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1187. }

  1188. 

  1189. check_struct(){

  1190.     log check_struct "$@"

  1191.     headers=$1

  1192.     struct=$2

  1193.     member=$3

  1194.     shift 3

  1195.     disable_safe "${struct}_${member}"

  1196.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1197.         enable_safe "${struct}_${member}"

  1198. }

  1199. 

  1200. check_builtin(){

  1201.     log check_builtin "$@"

  1202.     name=$1

  1203.     headers=$2

  1204.     builtin=$3

  1205.     shift 3

  1206.     disable "$name"

  1207.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1208. }

  1209. 

  1210. check_compile_assert(){

  1211.     log check_compile_assert "$@"

  1212.     name=$1

  1213.     headers=$2

  1214.     condition=$3

  1215.     shift 3

  1216.     disable "$name"

  1217.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1218. }

  1219. 

  1220. require(){

  1221.     name="$1"

  1222.     header="$2"

  1223.     func="$3"

  1224.     shift 3

  1225.     check_lib $header $func "$@" || die "ERROR: $name not found"

  1226. }

  1227. 

  1228. require2(){

  1229.     name="$1"

  1230.     headers="$2"

  1231.     func="$3"

  1232.     shift 3

  1233.     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"

  1234. }

  1235. 

  1236. require_cpp(){

  1237.     name="$1"

  1238.     headers="$2"

  1239.     classes="$3"

  1240.     shift 3

  1241.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1242. }

  1243. 

  1244. use_pkg_config(){

  1245.     pkg="$1"

  1246.     check_pkg_config "$@" || return 1

  1247.     add_cflags    $(get_safe "${pkg}_cflags")

  1248.     add_extralibs $(get_safe "${pkg}_libs")

  1249. }

  1250. 

  1251. require_pkg_config(){

  1252.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1253. }

  1254. 

  1255. require_libfreetype(){

  1256.     log require_libfreetype "$@"

  1257.     pkg="freetype2"

  1258.     check_cmd $pkg_config --exists --print-errors $pkg \

  1259.       || die "ERROR: $pkg not found"

  1260.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1261.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1262.     {

  1263.         echo "#include <ft2build.h>"

  1264.         echo "#include FT_FREETYPE_H"

  1265.         echo "long check_func(void) { return (long) FT_Init_FreeType; }"

  1266.         echo "int main(void) { return 0; }"

  1267.     } | check_ld "cc" $pkg_cflags $pkg_libs \

  1268.       && set_safe "${pkg}_cflags" $pkg_cflags \

  1269.       && set_safe "${pkg}_libs"   $pkg_libs \

  1270.       || die "ERROR: $pkg not found"

  1271.     add_cflags    $(get_safe "${pkg}_cflags")

  1272.     add_extralibs $(get_safe "${pkg}_libs")

  1273. }

  1274. 

  1275. hostcc_e(){

  1276.     eval printf '%s\\n' $HOSTCC_E

  1277. }

  1278. 

  1279. hostcc_o(){

  1280.     eval printf '%s\\n' $HOSTCC_O

  1281. }

  1282. 

  1283. check_host_cc(){

  1284.     log check_host_cc "$@"

  1285.     cat > $TMPC

  1286.     log_file $TMPC

  1287.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1288. }

  1289. 

  1290. check_host_cpp(){

  1291.     log check_host_cpp "$@"

  1292.     cat > $TMPC

  1293.     log_file $TMPC

  1294.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1295. }

  1296. 

  1297. check_host_cppflags(){

  1298.     log check_host_cppflags "$@"

  1299.     check_host_cc "$@" <<EOF && append host_cppflags "$@"

  1300. int x;

  1301. EOF

  1302. }

  1303. 

  1304. check_host_cflags(){

  1305.     log check_host_cflags "$@"

  1306.     set -- $($host_cflags_filter "$@")

  1307.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1308. int x;

  1309. EOF

  1310. }

  1311. 

  1312. check_host_cpp_condition(){

  1313.     log check_host_cpp_condition "$@"

  1314.     header=$1

  1315.     condition=$2

  1316.     shift 2

  1317.     check_host_cpp "$@" <<EOF

  1318. #include <$header>

  1319. #if !($condition)

  1320. #error "unsatisfied condition: $condition"

  1321. #endif

  1322. EOF

  1323. }

  1324. 

  1325. cp_if_changed(){

  1326.     cmp -s "$1" "$2" && echo "$2 is unchanged" && return

  1327.     mkdir -p "$(dirname $2)"

  1328.     $cp_f "$1" "$2"

  1329. }

  1330. 

  1331. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1332. # system-dependent things.

  1333. 

  1334. COMPONENT_LIST="

  1335.     bsfs

  1336.     decoders

  1337.     demuxers

  1338.     encoders

  1339.     filters

  1340.     hwaccels

  1341.     indevs

  1342.     muxers

  1343.     outdevs

  1344.     parsers

  1345.     protocols

  1346. "

  1347. 

  1348. EXAMPLE_LIST="

  1349.     avio_reading_example

  1350.     avio_dir_cmd_example

  1351.     decoding_encoding_example

  1352.     demuxing_decoding_example

  1353.     extract_mvs_example

  1354.     filter_audio_example

  1355.     filtering_audio_example

  1356.     filtering_video_example

  1357.     metadata_example

  1358.     muxing_example

  1359.     qsvdec_example

  1360.     remuxing_example

  1361.     resampling_audio_example

  1362.     scaling_video_example

  1363.     transcode_aac_example

  1364.     transcoding_example

  1365. "

  1366. 

  1367. EXTERNAL_LIBRARY_LIST="

  1368.     avisynth

  1369.     bzlib

  1370.     crystalhd

  1371.     decklink

  1372.     frei0r

  1373.     gnutls

  1374.     iconv

  1375.     ladspa

  1376.     libaacplus

  1377.     libass

  1378.     libbluray

  1379.     libbs2b

  1380.     libcaca

  1381.     libcdio

  1382.     libcelt

  1383.     libdc1394

  1384.     libdcadec

  1385.     libfaac

  1386.     libfdk_aac

  1387.     libflite

  1388.     libfontconfig

  1389.     libfreetype

  1390.     libfribidi

  1391.     libgme

  1392.     libgsm

  1393.     libiec61883

  1394.     libilbc

  1395.     libkvazaar

  1396.     libmfx

  1397.     libmodplug

  1398.     libmp3lame

  1399.     libnut

  1400.     libopencore_amrnb

  1401.     libopencore_amrwb

  1402.     libopencv

  1403.     libopenh264

  1404.     libopenjpeg

  1405.     libopus

  1406.     libpulse

  1407.     libquvi

  1408.     librtmp

  1409.     librubberband

  1410.     libschroedinger

  1411.     libshine

  1412.     libsmbclient

  1413.     libsnappy

  1414.     libsoxr

  1415.     libspeex

  1416.     libssh

  1417.     libstagefright_h264

  1418.     libtesseract

  1419.     libtheora

  1420.     libtwolame

  1421.     libutvideo

  1422.     libv4l2

  1423.     libvidstab

  1424.     libvo_aacenc

  1425.     libvo_amrwbenc

  1426.     libvorbis

  1427.     libvpx

  1428.     libwavpack

  1429.     libwebp

  1430.     libx264

  1431.     libx265

  1432.     libxavs

  1433.     libxcb

  1434.     libxcb_shm

  1435.     libxcb_shape

  1436.     libxcb_xfixes

  1437.     libxvid

  1438.     libzmq

  1439.     libzvbi

  1440.     lzma

  1441.     mmal

  1442.     nvenc

  1443.     openal

  1444.     opencl

  1445.     opengl

  1446.     openssl

  1447.     sdl

  1448.     securetransport

  1449.     x11grab

  1450.     xlib

  1451.     zlib

  1452. "

  1453. 

  1454. DOCUMENT_LIST="

  1455.     doc

  1456.     htmlpages

  1457.     manpages

  1458.     podpages

  1459.     txtpages

  1460. "

  1461. 

  1462. FEATURE_LIST="

  1463.     ftrapv

  1464.     gray

  1465.     hardcoded_tables

  1466.     runtime_cpudetect

  1467.     safe_bitstream_reader

  1468.     shared

  1469.     small

  1470.     static

  1471.     swscale_alpha

  1472. "

  1473. 

  1474. HWACCEL_LIST="

  1475.     d3d11va

  1476.     dxva2

  1477.     vaapi

  1478.     vda

  1479.     vdpau

  1480.     videotoolbox

  1481.     xvmc

  1482. "

  1483. 

  1484. LIBRARY_LIST="

  1485.     avcodec

  1486.     avdevice

  1487.     avfilter

  1488.     avformat

  1489.     avresample

  1490.     avutil

  1491.     postproc

  1492.     swresample

  1493.     swscale

  1494. "

  1495. 

  1496. LICENSE_LIST="

  1497.     gpl

  1498.     nonfree

  1499.     version3

  1500. "

  1501. 

  1502. PROGRAM_LIST="

  1503.     ffplay

  1504.     ffprobe

  1505.     ffserver

  1506.     ffmpeg

  1507. "

  1508. 

  1509. SUBSYSTEM_LIST="

  1510.     dct

  1511.     dwt

  1512.     error_resilience

  1513.     faan

  1514.     fast_unaligned

  1515.     fft

  1516.     lsp

  1517.     lzo

  1518.     mdct

  1519.     pixelutils

  1520.     network

  1521.     rdft

  1522. "

  1523. 

  1524. CONFIG_LIST="

  1525.     $COMPONENT_LIST

  1526.     $DOCUMENT_LIST

  1527.     $EXAMPLE_LIST

  1528.     $EXTERNAL_LIBRARY_LIST

  1529.     $FEATURE_LIST

  1530.     $HWACCEL_LIST

  1531.     $LICENSE_LIST

  1532.     $LIBRARY_LIST

  1533.     $PROGRAM_LIST

  1534.     $SUBSYSTEM_LIST

  1535.     fontconfig

  1536.     incompatible_libav_abi

  1537.     memalign_hack

  1538.     memory_poisoning

  1539.     neon_clobber_test

  1540.     pic

  1541.     pod2man

  1542.     raise_major

  1543.     thumb

  1544.     valgrind_backtrace

  1545.     xmm_clobber_test

  1546. "

  1547. 

  1548. THREADS_LIST="

  1549.     pthreads

  1550.     os2threads

  1551.     w32threads

  1552. "

  1553. 

  1554. ATOMICS_LIST="

  1555.     atomics_gcc

  1556.     atomics_suncc

  1557.     atomics_win32

  1558. "

  1559. 

  1560. ARCH_LIST="

  1561.     aarch64

  1562.     alpha

  1563.     arm

  1564.     avr32

  1565.     avr32_ap

  1566.     avr32_uc

  1567.     bfin

  1568.     ia64

  1569.     m68k

  1570.     mips

  1571.     mips64

  1572.     parisc

  1573.     ppc

  1574.     ppc64

  1575.     s390

  1576.     sh4

  1577.     sparc

  1578.     sparc64

  1579.     tilegx

  1580.     tilepro

  1581.     tomi

  1582.     x86

  1583.     x86_32

  1584.     x86_64

  1585. "

  1586. 

  1587. ARCH_EXT_LIST_ARM="

  1588.     armv5te

  1589.     armv6

  1590.     armv6t2

  1591.     armv8

  1592.     neon

  1593.     vfp

  1594.     vfpv3

  1595.     setend

  1596. "

  1597. 

  1598. ARCH_EXT_LIST_MIPS="

  1599.     mipsfpu

  1600.     mips32r2

  1601.     mips32r5

  1602.     mips64r6

  1603.     mipsdspr1

  1604.     mipsdspr2

  1605.     msa

  1606. "

  1607. 

  1608. ARCH_EXT_LIST_LOONGSON="

  1609.     loongson2

  1610.     loongson3

  1611.     mmi

  1612. "

  1613. 

  1614. ARCH_EXT_LIST_X86_SIMD="

  1615.     amd3dnow

  1616.     amd3dnowext

  1617.     avx

  1618.     avx2

  1619.     fma3

  1620.     fma4

  1621.     mmx

  1622.     mmxext

  1623.     sse

  1624.     sse2

  1625.     sse3

  1626.     sse4

  1627.     sse42

  1628.     ssse3

  1629.     xop

  1630. "

  1631. 

  1632. ARCH_EXT_LIST_PPC="

  1633.     altivec

  1634.     dcbzl

  1635.     ldbrx

  1636.     power8

  1637.     ppc4xx

  1638.     vsx

  1639. "

  1640. 

  1641. ARCH_EXT_LIST_X86="

  1642.     $ARCH_EXT_LIST_X86_SIMD

  1643.     cpunop

  1644.     i686

  1645. "

  1646. 

  1647. ARCH_EXT_LIST="

  1648.     $ARCH_EXT_LIST_ARM

  1649.     $ARCH_EXT_LIST_PPC

  1650.     $ARCH_EXT_LIST_X86

  1651.     $ARCH_EXT_LIST_MIPS

  1652.     $ARCH_EXT_LIST_LOONGSON

  1653. "

  1654. 

  1655. ARCH_FEATURES="

  1656.     aligned_stack

  1657.     fast_64bit

  1658.     fast_clz

  1659.     fast_cmov

  1660.     local_aligned_8

  1661.     local_aligned_16

  1662.     local_aligned_32

  1663.     simd_align_16

  1664. "

  1665. 

  1666. BUILTIN_LIST="

  1667.     atomic_cas_ptr

  1668.     atomic_compare_exchange

  1669.     machine_rw_barrier

  1670.     MemoryBarrier

  1671.     mm_empty

  1672.     rdtsc

  1673.     sarestart

  1674.     sync_val_compare_and_swap

  1675. "

  1676. HAVE_LIST_CMDLINE="

  1677.     inline_asm

  1678.     symver

  1679.     yasm

  1680. "

  1681. 

  1682. HAVE_LIST_PUB="

  1683.     bigendian

  1684.     fast_unaligned

  1685.     incompatible_libav_abi

  1686. "

  1687. 

  1688. HEADERS_LIST="

  1689.     alsa_asoundlib_h

  1690.     altivec_h

  1691.     arpa_inet_h

  1692.     asm_types_h

  1693.     cdio_paranoia_h

  1694.     cdio_paranoia_paranoia_h

  1695.     dev_bktr_ioctl_bt848_h

  1696.     dev_bktr_ioctl_meteor_h

  1697.     dev_ic_bt8xx_h

  1698.     dev_video_bktr_ioctl_bt848_h

  1699.     dev_video_meteor_ioctl_meteor_h

  1700.     direct_h

  1701.     dirent_h

  1702.     dlfcn_h

  1703.     d3d11_h

  1704.     dxva_h

  1705.     ES2_gl_h

  1706.     gsm_h

  1707.     io_h

  1708.     mach_mach_time_h

  1709.     machine_ioctl_bt848_h

  1710.     machine_ioctl_meteor_h

  1711.     malloc_h

  1712.     openjpeg_1_5_openjpeg_h

  1713.     OpenGL_gl3_h

  1714.     poll_h

  1715.     sndio_h

  1716.     soundcard_h

  1717.     sys_mman_h

  1718.     sys_param_h

  1719.     sys_resource_h

  1720.     sys_select_h

  1721.     sys_soundcard_h

  1722.     sys_time_h

  1723.     sys_un_h

  1724.     sys_videoio_h

  1725.     termios_h

  1726.     udplite_h

  1727.     unistd_h

  1728.     valgrind_valgrind_h

  1729.     windows_h

  1730.     winsock2_h

  1731. "

  1732. 

  1733. INTRINSICS_LIST="

  1734.     intrinsics_neon

  1735. "

  1736. 

  1737. MATH_FUNCS="

  1738.     atanf

  1739.     atan2f

  1740.     cbrt

  1741.     cbrtf

  1742.     copysign

  1743.     cosf

  1744.     erf

  1745.     exp2

  1746.     exp2f

  1747.     expf

  1748.     isinf

  1749.     isnan

  1750.     ldexpf

  1751.     llrint

  1752.     llrintf

  1753.     log2

  1754.     log2f

  1755.     log10f

  1756.     lrint

  1757.     lrintf

  1758.     powf

  1759.     rint

  1760.     round

  1761.     roundf

  1762.     sinf

  1763.     trunc

  1764.     truncf

  1765. "

  1766. 

  1767. SYSTEM_FUNCS="

  1768.     access

  1769.     aligned_malloc

  1770.     clock_gettime

  1771.     closesocket

  1772.     CommandLineToArgvW

  1773.     CoTaskMemFree

  1774.     CryptGenRandom

  1775.     dlopen

  1776.     fcntl

  1777.     flt_lim

  1778.     fork

  1779.     getaddrinfo

  1780.     gethrtime

  1781.     getopt

  1782.     GetProcessAffinityMask

  1783.     GetProcessMemoryInfo

  1784.     GetProcessTimes

  1785.     getrusage

  1786.     getservbyport

  1787.     GetSystemTimeAsFileTime

  1788.     gettimeofday

  1789.     glob

  1790.     glXGetProcAddress

  1791.     gmtime_r

  1792.     inet_aton

  1793.     isatty

  1794.     jack_port_get_latency_range

  1795.     kbhit

  1796.     localtime_r

  1797.     lstat

  1798.     lzo1x_999_compress

  1799.     mach_absolute_time

  1800.     MapViewOfFile

  1801.     memalign

  1802.     mkstemp

  1803.     mmap

  1804.     mprotect

  1805.     nanosleep

  1806.     PeekNamedPipe

  1807.     posix_memalign

  1808.     pthread_cancel

  1809.     sched_getaffinity

  1810.     SetConsoleTextAttribute

  1811.     SetConsoleCtrlHandler

  1812.     setmode

  1813.     setrlimit

  1814.     Sleep

  1815.     strerror_r

  1816.     sysconf

  1817.     sysctl

  1818.     usleep

  1819.     VirtualAlloc

  1820.     wglGetProcAddress

  1821. "

  1822. 

  1823. TOOLCHAIN_FEATURES="

  1824.     as_dn_directive

  1825.     as_func

  1826.     as_object_arch

  1827.     asm_mod_q

  1828.     attribute_may_alias

  1829.     attribute_packed

  1830.     ebp_available

  1831.     ebx_available

  1832.     gnu_as

  1833.     gnu_windres

  1834.     ibm_asm

  1835.     inline_asm_labels

  1836.     inline_asm_nonlocal_labels

  1837.     inline_asm_direct_symbol_refs

  1838.     pragma_deprecated

  1839.     rsync_contimeout

  1840.     symver_asm_label

  1841.     symver_gnu_asm

  1842.     vfp_args

  1843.     xform_asm

  1844.     xmm_clobbers

  1845. "

  1846. 

  1847. TYPES_LIST="

  1848.     CONDITION_VARIABLE_Ptr

  1849.     socklen_t

  1850.     struct_addrinfo

  1851.     struct_dcadec_exss_info_matrix_encoding

  1852.     struct_group_source_req

  1853.     struct_ip_mreq_source

  1854.     struct_ipv6_mreq

  1855.     struct_pollfd

  1856.     struct_rusage_ru_maxrss

  1857.     struct_sctp_event_subscribe

  1858.     struct_sockaddr_in6

  1859.     struct_sockaddr_sa_len

  1860.     struct_sockaddr_storage

  1861.     struct_stat_st_mtim_tv_nsec

  1862.     struct_v4l2_frmivalenum_discrete

  1863. "

  1864. 

  1865. HAVE_LIST="

  1866.     $ARCH_EXT_LIST

  1867.     $(add_suffix _external $ARCH_EXT_LIST)

  1868.     $(add_suffix _inline   $ARCH_EXT_LIST)

  1869.     $ARCH_FEATURES

  1870.     $ATOMICS_LIST

  1871.     $BUILTIN_LIST

  1872.     $HAVE_LIST_CMDLINE

  1873.     $HAVE_LIST_PUB

  1874.     $HEADERS_LIST

  1875.     $INTRINSICS_LIST

  1876.     $MATH_FUNCS

  1877.     $SYSTEM_FUNCS

  1878.     $THREADS_LIST

  1879.     $TOOLCHAIN_FEATURES

  1880.     $TYPES_LIST

  1881.     atomics_native

  1882.     dos_paths

  1883.     dxva2api_cobj

  1884.     dxva2_lib

  1885.     libc_msvcrt

  1886.     libdc1394_1

  1887.     libdc1394_2

  1888.     makeinfo

  1889.     makeinfo_html

  1890.     perl

  1891.     pod2man

  1892.     sdl

  1893.     section_data_rel_ro

  1894.     texi2html

  1895.     threads

  1896.     vaapi_x11

  1897.     vdpau_x11

  1898.     xlib

  1899. "

  1900. 

  1901. # options emitted with CONFIG_ prefix but not available on the command line

  1902. CONFIG_EXTRA="

  1903.     aandcttables

  1904.     ac3dsp

  1905.     audio_frame_queue

  1906.     audiodsp

  1907.     blockdsp

  1908.     bswapdsp

  1909.     cabac

  1910.     dvprofile

  1911.     exif

  1912.     faandct

  1913.     faanidct

  1914.     fdctdsp

  1915.     flacdsp

  1916.     fmtconvert

  1917.     frame_thread_encoder

  1918.     g722dsp

  1919.     gcrypt

  1920.     gmp

  1921.     golomb

  1922.     gplv3

  1923.     h263dsp

  1924.     h264chroma

  1925.     h264dsp

  1926.     h264pred

  1927.     h264qpel

  1928.     hpeldsp

  1929.     huffman

  1930.     huffyuvdsp

  1931.     huffyuvencdsp

  1932.     idctdsp

  1933.     iirfilter

  1934.     imdct15

  1935.     intrax8

  1936.     ividsp

  1937.     jpegtables

  1938.     libx262

  1939.     lgplv3

  1940.     llauddsp

  1941.     llviddsp

  1942.     lpc

  1943.     lzf

  1944.     me_cmp

  1945.     mpeg_er

  1946.     mpegaudio

  1947.     mpegaudiodsp

  1948.     mpegvideo

  1949.     mpegvideoenc

  1950.     mss34dsp

  1951.     pixblockdsp

  1952.     qpeldsp

  1953.     qsv

  1954.     qsvdec

  1955.     qsvenc

  1956.     rangecoder

  1957.     riffdec

  1958.     riffenc

  1959.     rtpdec

  1960.     rtpenc_chain

  1961.     rv34dsp

  1962.     sinewin

  1963.     snappy

  1964.     startcode

  1965.     texturedsp

  1966.     texturedspenc

  1967.     tpeldsp

  1968.     videodsp

  1969.     vp3dsp

  1970.     vp56dsp

  1971.     vp8dsp

  1972.     wma_freqs

  1973.     wmv2dsp

  1974. "

  1975. 

  1976. CMDLINE_SELECT="

  1977.     $ARCH_EXT_LIST

  1978.     $CONFIG_LIST

  1979.     $HAVE_LIST_CMDLINE

  1980.     $THREADS_LIST

  1981.     asm

  1982.     cross_compile

  1983.     debug

  1984.     extra_warnings

  1985.     logging

  1986.     lto

  1987.     optimizations

  1988.     rpath

  1989.     stripping

  1990. "

  1991. 

  1992. PATHS_LIST="

  1993.     bindir

  1994.     datadir

  1995.     docdir

  1996.     incdir

  1997.     libdir

  1998.     mandir

  1999.     pkgconfigdir

  2000.     prefix

  2001.     shlibdir

  2002. "

  2003. 

  2004. CMDLINE_SET="

  2005.     $PATHS_LIST

  2006.     ar

  2007.     arch

  2008.     as

  2009.     assert_level

  2010.     build_suffix

  2011.     cc

  2012.     cpu

  2013.     cross_prefix

  2014.     custom_allocator

  2015.     cxx

  2016.     dep_cc

  2017.     doxygen

  2018.     env

  2019.     extra_version

  2020.     gas

  2021.     host_cc

  2022.     host_cflags

  2023.     host_ld

  2024.     host_ldflags

  2025.     host_libs

  2026.     host_os

  2027.     install

  2028.     ld

  2029.     logfile

  2030.     malloc_prefix

  2031.     nm

  2032.     optflags

  2033.     pkg_config

  2034.     pkg_config_flags

  2035.     progs_suffix

  2036.     random_seed

  2037.     ranlib

  2038.     samples

  2039.     strip

  2040.     sws_max_filter_size

  2041.     sysinclude

  2042.     sysroot

  2043.     target_exec

  2044.     target_os

  2045.     target_path

  2046.     target_samples

  2047.     tempprefix

  2048.     toolchain

  2049.     valgrind

  2050.     yasmexe

  2051. "

  2052. 

  2053. CMDLINE_APPEND="

  2054.     extra_cflags

  2055.     extra_cxxflags

  2056.     host_cppflags

  2057. "

  2058. 

  2059. # code dependency declarations

  2060. 

  2061. # architecture extensions

  2062. 

  2063. armv5te_deps="arm"

  2064. armv6_deps="arm"

  2065. armv6t2_deps="arm"

  2066. armv8_deps="aarch64"

  2067. neon_deps_any="aarch64 arm"

  2068. intrinsics_neon_deps="neon"

  2069. vfp_deps_any="aarch64 arm"

  2070. vfpv3_deps="vfp"

  2071. setend_deps="arm"

  2072. 

  2073. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2074. 

  2075. mipsfpu_deps="mips"

  2076. mipsdspr1_deps="mips"

  2077. mipsdspr2_deps="mips"

  2078. mips32r2_deps="mips"

  2079. mips32r5_deps="mips"

  2080. mips64r6_deps="mips"

  2081. msa_deps="mips"

  2082. mmi_deps="mips"

  2083. 

  2084. altivec_deps="ppc"

  2085. dcbzl_deps="ppc"

  2086. ldbrx_deps="ppc"

  2087. ppc4xx_deps="ppc"

  2088. vsx_deps="altivec"

  2089. power8_deps="vsx"

  2090. 

  2091. cpunop_deps="i686"

  2092. x86_64_select="i686"

  2093. x86_64_suggest="fast_cmov"

  2094. 

  2095. amd3dnow_deps="mmx"

  2096. amd3dnowext_deps="amd3dnow"

  2097. i686_deps="x86"

  2098. mmx_deps="x86"

  2099. mmxext_deps="mmx"

  2100. sse_deps="mmxext"

  2101. sse2_deps="sse"

  2102. sse3_deps="sse2"

  2103. ssse3_deps="sse3"

  2104. sse4_deps="ssse3"

  2105. sse42_deps="sse4"

  2106. avx_deps="sse42"

  2107. xop_deps="avx"

  2108. fma3_deps="avx"

  2109. fma4_deps="avx"

  2110. avx2_deps="avx"

  2111. 

  2112. mmx_external_deps="yasm"

  2113. mmx_inline_deps="inline_asm"

  2114. mmx_suggest="mmx_external mmx_inline"

  2115. 

  2116. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2117.     eval dep=\$${ext}_deps

  2118.     eval ${ext}_external_deps='"${dep}_external"'

  2119.     eval ${ext}_inline_deps='"${dep}_inline"'

  2120.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2121. done

  2122. 

  2123. aligned_stack_if_any="aarch64 ppc x86"

  2124. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2125. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2126. fast_unaligned_if_any="aarch64 ppc x86"

  2127. simd_align_16_if_any="altivec neon sse"

  2128. 

  2129. # system capabilities

  2130. symver_if_any="symver_asm_label symver_gnu_asm"

  2131. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2132. 

  2133. # threading support

  2134. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2135. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2136. atomics_win32_if="MemoryBarrier"

  2137. atomics_native_if_any="$ATOMICS_LIST"

  2138. w32threads_deps="atomics_native"

  2139. threads_if_any="$THREADS_LIST"

  2140. 

  2141. # subsystems

  2142. dct_select="rdft"

  2143. error_resilience_select="me_cmp"

  2144. faandct_deps="faan fdctdsp"

  2145. faanidct_deps="faan idctdsp"

  2146. frame_thread_encoder_deps="encoders threads"

  2147. intrax8_select="error_resilience"

  2148. mdct_select="fft"

  2149. rdft_select="fft"

  2150. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2151. mpeg_er_select="error_resilience"

  2152. mpegaudio_select="mpegaudiodsp"

  2153. mpegaudiodsp_select="dct"

  2154. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2155. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2156. qsvdec_select="qsv"

  2157. qsvenc_select="qsv"

  2158. 

  2159. # decoders / encoders

  2160. aac_decoder_select="imdct15 mdct sinewin"

  2161. aac_fixed_decoder_select="mdct sinewin"

  2162. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2163. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2164. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2165. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2166. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2167. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2168. adpcm_g722_decoder_select="g722dsp"

  2169. adpcm_g722_encoder_select="g722dsp"

  2170. aic_decoder_select="golomb idctdsp"

  2171. alac_encoder_select="lpc"

  2172. als_decoder_select="bswapdsp"

  2173. amrnb_decoder_select="lsp"

  2174. amrwb_decoder_select="lsp"

  2175. amv_decoder_select="sp5x_decoder exif"

  2176. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2177. ape_decoder_select="bswapdsp llauddsp"

  2178. apng_decoder_select="zlib"

  2179. apng_encoder_select="huffyuvencdsp zlib"

  2180. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2181. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2182. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2183. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2184. atrac1_decoder_select="mdct sinewin"

  2185. atrac3_decoder_select="mdct"

  2186. atrac3p_decoder_select="mdct sinewin"

  2187. avrn_decoder_select="exif jpegtables"

  2188. bink_decoder_select="blockdsp hpeldsp"

  2189. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2190. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2191. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2192. cllc_decoder_select="bswapdsp"

  2193. comfortnoise_encoder_select="lpc"

  2194. cook_decoder_select="audiodsp mdct sinewin"

  2195. cscd_decoder_select="lzo"

  2196. cscd_decoder_suggest="zlib"

  2197. dca_decoder_select="fmtconvert mdct"

  2198. dds_decoder_select="texturedsp"

  2199. dirac_decoder_select="dwt golomb videodsp mpegvideoenc"

  2200. dnxhd_decoder_select="blockdsp idctdsp"

  2201. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2202. dvvideo_decoder_select="dvprofile idctdsp"

  2203. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2204. dxa_decoder_select="zlib"

  2205. dxv_decoder_select="lzf texturedsp"

  2206. eac3_decoder_select="ac3_decoder"

  2207. eac3_encoder_select="ac3_encoder"

  2208. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2209. eatgq_decoder_select="aandcttables"

  2210. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"

  2211. exr_decoder_select="zlib"

  2212. ffv1_decoder_select="golomb rangecoder"

  2213. ffv1_encoder_select="rangecoder"

  2214. ffvhuff_decoder_select="huffyuv_decoder"

  2215. ffvhuff_encoder_select="huffyuv_encoder"

  2216. fic_decoder_select="golomb"

  2217. flac_decoder_select="flacdsp golomb"

  2218. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2219. flashsv_decoder_select="zlib"

  2220. flashsv_encoder_select="zlib"

  2221. flashsv2_encoder_select="zlib"

  2222. flashsv2_decoder_select="zlib"

  2223. flv_decoder_select="h263_decoder"

  2224. flv_encoder_select="h263_encoder"

  2225. fourxm_decoder_select="blockdsp bswapdsp"

  2226. fraps_decoder_select="bswapdsp huffman"

  2227. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2228. g729_decoder_select="audiodsp"

  2229. h261_decoder_select="mpegvideo"

  2230. h261_encoder_select="aandcttables mpegvideoenc"

  2231. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2232. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2233. h263i_decoder_select="h263_decoder"

  2234. h263p_decoder_select="h263_decoder"

  2235. h263p_encoder_select="h263_encoder"

  2236. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"

  2237. h264_decoder_suggest="error_resilience"

  2238. h264_qsv_decoder_deps="libmfx"

  2239. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2240. h264_qsv_encoder_deps="libmfx"

  2241. h264_qsv_encoder_select="qsvenc"

  2242. hap_decoder_select="snappy texturedsp"

  2243. hap_encoder_deps="libsnappy"

  2244. hap_encoder_select="texturedspenc"

  2245. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2246. hevc_qsv_encoder_deps="libmfx"

  2247. hevc_qsv_decoder_deps="libmfx"

  2248. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2249. hevc_qsv_encoder_select="qsvenc"

  2250. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2251. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2252. iac_decoder_select="imc_decoder"

  2253. imc_decoder_select="bswapdsp fft mdct sinewin"

  2254. indeo3_decoder_select="hpeldsp"

  2255. indeo4_decoder_select="ividsp"

  2256. indeo5_decoder_select="ividsp"

  2257. interplay_video_decoder_select="hpeldsp"

  2258. jpegls_decoder_select="golomb mjpeg_decoder"

  2259. jpegls_encoder_select="golomb"

  2260. jv_decoder_select="blockdsp"

  2261. lagarith_decoder_select="huffyuvdsp"

  2262. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2263. loco_decoder_select="golomb"

  2264. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2265. metasound_decoder_select="lsp mdct sinewin"

  2266. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2267. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2268. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2269. mjpegb_decoder_select="mjpeg_decoder"

  2270. mlp_decoder_select="mlp_parser"

  2271. motionpixels_decoder_select="bswapdsp"

  2272. mp1_decoder_select="mpegaudio"

  2273. mp1float_decoder_select="mpegaudio"

  2274. mp2_decoder_select="mpegaudio"

  2275. mp2float_decoder_select="mpegaudio"

  2276. mp3_decoder_select="mpegaudio"

  2277. mp3adu_decoder_select="mpegaudio"

  2278. mp3adufloat_decoder_select="mpegaudio"

  2279. mp3float_decoder_select="mpegaudio"

  2280. mp3on4_decoder_select="mpegaudio"

  2281. mp3on4float_decoder_select="mpegaudio"

  2282. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2283. mpc8_decoder_select="mpegaudiodsp"

  2284. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2285. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2286. mpegvideo_decoder_select="mpegvideo"

  2287. mpeg1video_decoder_select="mpegvideo"

  2288. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2289. mpeg2video_decoder_select="mpegvideo"

  2290. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2291. mpeg2_qsv_decoder_deps="libmfx"

  2292. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2293. mpeg2_qsv_encoder_deps="libmfx"

  2294. mpeg2_qsv_encoder_select="qsvenc"

  2295. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2296. mpeg4_encoder_select="h263_encoder"

  2297. msa1_decoder_select="mss34dsp"

  2298. msmpeg4v1_decoder_select="h263_decoder"

  2299. msmpeg4v2_decoder_select="h263_decoder"

  2300. msmpeg4v2_encoder_select="h263_encoder"

  2301. msmpeg4v3_decoder_select="h263_decoder"

  2302. msmpeg4v3_encoder_select="h263_encoder"

  2303. mss2_decoder_select="vc1_decoder"

  2304. mts2_decoder_select="mss34dsp"

  2305. mxpeg_decoder_select="mjpeg_decoder"

  2306. nellymoser_decoder_select="mdct sinewin"

  2307. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2308. nuv_decoder_select="idctdsp lzo"

  2309. on2avc_decoder_select="mdct"

  2310. opus_decoder_deps="swresample"

  2311. opus_decoder_select="imdct15"

  2312. png_decoder_select="zlib"

  2313. png_encoder_select="huffyuvencdsp zlib"

  2314. prores_decoder_select="blockdsp idctdsp"

  2315. prores_encoder_select="fdctdsp"

  2316. qcelp_decoder_select="lsp"

  2317. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2318. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2319. ra_144_decoder_select="audiodsp"

  2320. ralf_decoder_select="golomb"

  2321. rawvideo_decoder_select="bswapdsp"

  2322. rtjpeg_decoder_select="me_cmp"

  2323. rv10_decoder_select="h263_decoder"

  2324. rv10_encoder_select="h263_encoder"

  2325. rv20_decoder_select="h263_decoder"

  2326. rv20_encoder_select="h263_encoder"

  2327. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2328. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2329. screenpresso_decoder_select="zlib"

  2330. shorten_decoder_select="golomb"

  2331. sipr_decoder_select="lsp"

  2332. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2333. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2334. sonic_decoder_select="golomb rangecoder"

  2335. sonic_encoder_select="golomb rangecoder"

  2336. sonic_ls_encoder_select="golomb rangecoder"

  2337. sp5x_decoder_select="mjpeg_decoder"

  2338. svq1_decoder_select="hpeldsp"

  2339. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2340. svq3_decoder_select="h264_decoder hpeldsp tpeldsp"

  2341. svq3_decoder_suggest="zlib"

  2342. tak_decoder_select="audiodsp"

  2343. tdsc_decoder_select="zlib mjpeg_decoder"

  2344. theora_decoder_select="vp3_decoder"

  2345. thp_decoder_select="mjpeg_decoder"

  2346. tiff_decoder_suggest="zlib lzma"

  2347. tiff_encoder_suggest="zlib"

  2348. truehd_decoder_select="mlp_parser"

  2349. truemotion2_decoder_select="bswapdsp"

  2350. truespeech_decoder_select="bswapdsp"

  2351. tscc_decoder_select="zlib"

  2352. twinvq_decoder_select="mdct lsp sinewin"

  2353. txd_decoder_select="texturedsp"

  2354. utvideo_decoder_select="bswapdsp"

  2355. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2356. vble_decoder_select="huffyuvdsp"

  2357. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"

  2358. vc1image_decoder_select="vc1_decoder"

  2359. vc1_qsv_decoder_deps="libmfx"

  2360. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2361. vorbis_decoder_select="mdct"

  2362. vorbis_encoder_select="mdct"

  2363. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2364. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2365. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2366. vp6a_decoder_select="vp6_decoder"

  2367. vp6f_decoder_select="vp6_decoder"

  2368. vp7_decoder_select="h264pred videodsp vp8dsp"

  2369. vp8_decoder_select="h264pred videodsp vp8dsp"

  2370. vp9_decoder_select="videodsp vp9_parser"

  2371. webp_decoder_select="vp8_decoder"

  2372. wmalossless_decoder_select="llauddsp"

  2373. wmapro_decoder_select="mdct sinewin wma_freqs"

  2374. wmav1_decoder_select="mdct sinewin wma_freqs"

  2375. wmav1_encoder_select="mdct sinewin wma_freqs"

  2376. wmav2_decoder_select="mdct sinewin wma_freqs"

  2377. wmav2_encoder_select="mdct sinewin wma_freqs"

  2378. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2379. wmv1_decoder_select="h263_decoder"

  2380. wmv1_encoder_select="h263_encoder"

  2381. wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2382. wmv2_encoder_select="h263_encoder wmv2dsp"

  2383. wmv3_decoder_select="vc1_decoder"

  2384. wmv3image_decoder_select="wmv3_decoder"

  2385. zerocodec_decoder_select="zlib"

  2386. zlib_decoder_select="zlib"

  2387. zlib_encoder_select="zlib"

  2388. zmbv_decoder_select="zlib"

  2389. zmbv_encoder_select="zlib"

  2390. 

  2391. # hardware accelerators

  2392. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2393. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2394. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2395. vaapi_deps="va_va_h"

  2396. vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads CoreServices_CoreServices_h"

  2397. vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore -framework CoreServices"

  2398. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2399. videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads CoreServices_CoreServices_h"

  2400. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreServices"

  2401. xvmc_deps="X11_extensions_XvMClib_h"

  2402. 

  2403. h263_vaapi_hwaccel_deps="vaapi"

  2404. h263_vaapi_hwaccel_select="h263_decoder"

  2405. h263_vdpau_hwaccel_deps="vdpau"

  2406. h263_vdpau_hwaccel_select="h263_decoder"

  2407. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2408. h263_videotoolbox_hwaccel_select="h263_decoder"

  2409. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2410. h264_d3d11va_hwaccel_deps="d3d11va"

  2411. h264_d3d11va_hwaccel_select="h264_decoder"

  2412. h264_dxva2_hwaccel_deps="dxva2"

  2413. h264_dxva2_hwaccel_select="h264_decoder"

  2414. h264_mmal_decoder_deps="mmal"

  2415. h264_mmal_hwaccel_deps="mmal"

  2416. h264_mmal_decoder_select="h264_decoder"

  2417. h264_mmal_encoder_deps="mmal"

  2418. h264_qsv_hwaccel_deps="libmfx"

  2419. h264_vaapi_hwaccel_deps="vaapi"

  2420. h264_vaapi_hwaccel_select="h264_decoder"

  2421. h264_vda_decoder_deps="vda"

  2422. h264_vda_decoder_select="h264_decoder"

  2423. h264_vda_hwaccel_deps="vda"

  2424. h264_vda_hwaccel_select="h264_decoder"

  2425. h264_vda_old_hwaccel_deps="vda"

  2426. h264_vda_old_hwaccel_select="h264_decoder"

  2427. h264_vdpau_decoder_deps="vdpau"

  2428. h264_vdpau_decoder_select="h264_decoder"

  2429. h264_vdpau_hwaccel_deps="vdpau"

  2430. h264_vdpau_hwaccel_select="h264_decoder"

  2431. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2432. h264_videotoolbox_hwaccel_select="h264_decoder"

  2433. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2434. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2435. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2436. hevc_dxva2_hwaccel_select="hevc_decoder"

  2437. hevc_qsv_hwaccel_deps="libmfx"

  2438. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2439. hevc_vaapi_hwaccel_select="hevc_decoder"

  2440. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2441. hevc_vdpau_hwaccel_select="hevc_decoder"

  2442. mpeg_vdpau_decoder_deps="vdpau"

  2443. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2444. mpeg_xvmc_hwaccel_deps="xvmc"

  2445. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2446. mpeg1_vdpau_decoder_deps="vdpau"

  2447. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2448. mpeg1_vdpau_hwaccel_deps="vdpau"

  2449. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2450. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2451. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2452. mpeg1_xvmc_hwaccel_deps="xvmc"

  2453. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2454. mpeg2_crystalhd_decoder_select="crystalhd"

  2455. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2456. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2457. mpeg2_dxva2_hwaccel_deps="dxva2"

  2458. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2459. mpeg2_qsv_hwaccel_deps="libmfx"

  2460. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2461. mpeg2_vaapi_hwaccel_deps="vaapi"

  2462. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2463. mpeg2_vdpau_hwaccel_deps="vdpau"

  2464. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2465. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2466. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2467. mpeg2_xvmc_hwaccel_deps="xvmc"

  2468. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2469. mpeg4_crystalhd_decoder_select="crystalhd"

  2470. mpeg4_vaapi_hwaccel_deps="vaapi"

  2471. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2472. mpeg4_vdpau_decoder_deps="vdpau"

  2473. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2474. mpeg4_vdpau_hwaccel_deps="vdpau"

  2475. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2476. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2477. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2478. msmpeg4_crystalhd_decoder_select="crystalhd"

  2479. vc1_crystalhd_decoder_select="crystalhd"

  2480. vc1_d3d11va_hwaccel_deps="d3d11va"

  2481. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2482. vc1_dxva2_hwaccel_deps="dxva2"

  2483. vc1_dxva2_hwaccel_select="vc1_decoder"

  2484. vc1_vaapi_hwaccel_deps="vaapi"

  2485. vc1_vaapi_hwaccel_select="vc1_decoder"

  2486. vc1_vdpau_decoder_deps="vdpau"

  2487. vc1_vdpau_decoder_select="vc1_decoder"

  2488. vc1_vdpau_hwaccel_deps="vdpau"

  2489. vc1_vdpau_hwaccel_select="vc1_decoder"

  2490. vc1_qsv_hwaccel_deps="libmfx"

  2491. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2492. wmv3_crystalhd_decoder_select="crystalhd"

  2493. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2494. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2495. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2496. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2497. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2498. 

  2499. # parsers

  2500. h264_parser_select="h264_decoder"

  2501. hevc_parser_select="golomb"

  2502. mpegvideo_parser_select="mpegvideo"

  2503. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2504. vc1_parser_select="mpegvideo startcode vc1_decoder"

  2505. 

  2506. # bitstream_filters

  2507. mjpeg2jpeg_bsf_select="jpegtables"

  2508. 

  2509. # external libraries

  2510. libaacplus_encoder_deps="libaacplus"

  2511. libcelt_decoder_deps="libcelt"

  2512. libdcadec_decoder_deps="libdcadec"

  2513. libfaac_encoder_deps="libfaac"

  2514. libfaac_encoder_select="audio_frame_queue"

  2515. libfdk_aac_decoder_deps="libfdk_aac"

  2516. libfdk_aac_encoder_deps="libfdk_aac"

  2517. libfdk_aac_encoder_select="audio_frame_queue"

  2518. libgme_demuxer_deps="libgme"

  2519. libgsm_decoder_deps="libgsm"

  2520. libgsm_encoder_deps="libgsm"

  2521. libgsm_ms_decoder_deps="libgsm"

  2522. libgsm_ms_encoder_deps="libgsm"

  2523. libilbc_decoder_deps="libilbc"

  2524. libilbc_encoder_deps="libilbc"

  2525. libkvazaar_encoder_deps="libkvazaar"

  2526. libmodplug_demuxer_deps="libmodplug"

  2527. libmp3lame_encoder_deps="libmp3lame"

  2528. libmp3lame_encoder_select="audio_frame_queue"

  2529. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2530. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2531. libopencore_amrnb_encoder_select="audio_frame_queue"

  2532. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2533. libopenh264_encoder_deps="libopenh264"

  2534. libopenjpeg_decoder_deps="libopenjpeg"

  2535. libopenjpeg_encoder_deps="libopenjpeg"

  2536. libopus_decoder_deps="libopus"

  2537. libopus_encoder_deps="libopus"

  2538. libopus_encoder_select="audio_frame_queue"

  2539. libquvi_demuxer_deps="libquvi"

  2540. libschroedinger_decoder_deps="libschroedinger"

  2541. libschroedinger_encoder_deps="libschroedinger"

  2542. libshine_encoder_deps="libshine"

  2543. libshine_encoder_select="audio_frame_queue"

  2544. libspeex_decoder_deps="libspeex"

  2545. libspeex_encoder_deps="libspeex"

  2546. libspeex_encoder_select="audio_frame_queue"

  2547. libstagefright_h264_decoder_deps="libstagefright_h264"

  2548. libtheora_encoder_deps="libtheora"

  2549. libtwolame_encoder_deps="libtwolame"

  2550. libvo_aacenc_encoder_deps="libvo_aacenc"

  2551. libvo_aacenc_encoder_select="audio_frame_queue"

  2552. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2553. libvorbis_decoder_deps="libvorbis"

  2554. libvorbis_encoder_deps="libvorbis"

  2555. libvorbis_encoder_select="audio_frame_queue"

  2556. libvpx_vp8_decoder_deps="libvpx"

  2557. libvpx_vp8_encoder_deps="libvpx"

  2558. libvpx_vp9_decoder_deps="libvpx"

  2559. libvpx_vp9_encoder_deps="libvpx"

  2560. libwavpack_encoder_deps="libwavpack"

  2561. libwebp_encoder_deps="libwebp"

  2562. libwebp_anim_encoder_deps="libwebp"

  2563. libx262_encoder_deps="libx262"

  2564. libx264_encoder_deps="libx264"

  2565. libx264rgb_encoder_deps="libx264"

  2566. libx264rgb_encoder_select="libx264_encoder"

  2567. libx265_encoder_deps="libx265"

  2568. libxavs_encoder_deps="libxavs"

  2569. libxvid_encoder_deps="libxvid"

  2570. libutvideo_decoder_deps="libutvideo"

  2571. libutvideo_encoder_deps="libutvideo"

  2572. libzvbi_teletext_decoder_deps="libzvbi"

  2573. nvenc_encoder_deps="nvenc"

  2574. nvenc_h264_encoder_deps="nvenc"

  2575. nvenc_hevc_encoder_deps="nvenc"

  2576. 

  2577. # demuxers / muxers

  2578. ac3_demuxer_select="ac3_parser"

  2579. asf_demuxer_select="riffdec"

  2580. asf_o_demuxer_select="riffdec"

  2581. asf_muxer_select="riffenc"

  2582. asf_stream_muxer_select="asf_muxer"

  2583. avi_demuxer_select="riffdec exif"

  2584. avi_muxer_select="riffenc"

  2585. avisynth_demuxer_deps="avisynth"

  2586. avisynth_demuxer_select="riffdec"

  2587. caf_demuxer_select="riffdec"

  2588. dash_muxer_select="mp4_muxer"

  2589. dirac_demuxer_select="dirac_parser"

  2590. dts_demuxer_select="dca_parser"

  2591. dtshd_demuxer_select="dca_parser"

  2592. dv_demuxer_select="dvprofile"

  2593. dv_muxer_select="dvprofile"

  2594. dxa_demuxer_select="riffdec"

  2595. eac3_demuxer_select="ac3_parser"

  2596. f4v_muxer_select="mov_muxer"

  2597. flac_demuxer_select="flac_parser"

  2598. hds_muxer_select="flv_muxer"

  2599. hls_muxer_select="mpegts_muxer"

  2600. image2_alias_pix_demuxer_select="image2_demuxer"

  2601. image2_brender_pix_demuxer_select="image2_demuxer"

  2602. ipod_muxer_select="mov_muxer"

  2603. ismv_muxer_select="mov_muxer"

  2604. libnut_demuxer_deps="libnut"

  2605. libnut_muxer_deps="libnut"

  2606. matroska_audio_muxer_select="matroska_muxer"

  2607. matroska_demuxer_select="riffdec"

  2608. matroska_demuxer_suggest="bzlib lzo zlib"

  2609. matroska_muxer_select="riffenc"

  2610. mmf_muxer_select="riffenc"

  2611. mov_demuxer_select="riffdec"

  2612. mov_demuxer_suggest="zlib"

  2613. mov_muxer_select="riffenc rtpenc_chain"

  2614. mp3_demuxer_select="mpegaudio_parser"

  2615. mp4_muxer_select="mov_muxer"

  2616. mpegts_muxer_select="adts_muxer latm_muxer"

  2617. mpegtsraw_demuxer_select="mpegts_demuxer"

  2618. mxf_d10_muxer_select="mxf_muxer"

  2619. mxf_opatom_muxer_select="mxf_muxer"

  2620. nut_muxer_select="riffenc"

  2621. nuv_demuxer_select="riffdec"

  2622. oga_muxer_select="ogg_muxer"

  2623. ogg_demuxer_select="golomb"

  2624. opus_muxer_select="ogg_muxer"

  2625. psp_muxer_select="mov_muxer"

  2626. rtp_demuxer_select="sdp_demuxer"

  2627. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"

  2628. rtsp_demuxer_select="http_protocol rtpdec"

  2629. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2630. sap_demuxer_select="sdp_demuxer"

  2631. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2632. sdp_demuxer_select="rtpdec"

  2633. smoothstreaming_muxer_select="ismv_muxer"

  2634. spdif_muxer_select="aac_parser"

  2635. spx_muxer_select="ogg_muxer"

  2636. tak_demuxer_select="tak_parser"

  2637. tg2_muxer_select="mov_muxer"

  2638. tgp_muxer_select="mov_muxer"

  2639. vobsub_demuxer_select="mpegps_demuxer"

  2640. w64_demuxer_select="wav_demuxer"

  2641. w64_muxer_select="wav_muxer"

  2642. wav_demuxer_select="riffdec"

  2643. wav_muxer_select="riffenc"

  2644. webm_muxer_select="riffenc"

  2645. wtv_demuxer_select="riffdec"

  2646. wtv_muxer_select="riffenc"

  2647. xmv_demuxer_select="riffdec"

  2648. xwma_demuxer_select="riffdec"

  2649. 

  2650. # indevs / outdevs

  2651. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2652. alsa_outdev_deps="alsa_asoundlib_h"

  2653. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2654. avfoundation_indev_select="avfoundation"

  2655. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2656. caca_outdev_deps="libcaca"

  2657. decklink_outdev_deps="decklink pthreads"

  2658. decklink_outdev_extralibs="-lstdc++"

  2659. decklink_indev_deps="decklink pthreads"

  2660. decklink_indev_extralibs="-lstdc++"

  2661. dshow_indev_deps="IBaseFilter"

  2662. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2663. dv1394_indev_deps="dv1394"

  2664. dv1394_indev_select="dv_demuxer"

  2665. fbdev_indev_deps="linux_fb_h"

  2666. fbdev_outdev_deps="linux_fb_h"

  2667. gdigrab_indev_deps="CreateDIBSection"

  2668. gdigrab_indev_extralibs="-lgdi32"

  2669. gdigrab_indev_select="bmp_decoder"

  2670. iec61883_indev_deps="libiec61883"

  2671. jack_indev_deps="jack_jack_h sem_timedwait"

  2672. lavfi_indev_deps="avfilter"

  2673. libcdio_indev_deps="libcdio"

  2674. libdc1394_indev_deps="libdc1394"

  2675. libv4l2_indev_deps="libv4l2"

  2676. openal_indev_deps="openal"

  2677. opengl_outdev_deps="opengl"

  2678. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2679. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2680. pulse_indev_deps="libpulse"

  2681. pulse_outdev_deps="libpulse"

  2682. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2683. qtkit_indev_select="qtkit"

  2684. sdl_outdev_deps="sdl"

  2685. sndio_indev_deps="sndio_h"

  2686. sndio_outdev_deps="sndio_h"

  2687. v4l_indev_deps="linux_videodev_h"

  2688. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2689. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2690. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2691. vfwcap_indev_extralibs="-lavicap32"

  2692. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2693. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2694. x11grab_indev_deps="x11grab"

  2695. x11grab_xcb_indev_deps="libxcb"

  2696. 

  2697. # protocols

  2698. async_protocol_deps="threads"

  2699. bluray_protocol_deps="libbluray"

  2700. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2701. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2702. ffrtmpcrypt_protocol_select="tcp_protocol"

  2703. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2704. ffrtmphttp_protocol_select="http_protocol"

  2705. ftp_protocol_select="tcp_protocol"

  2706. gopher_protocol_select="network"

  2707. http_protocol_select="tcp_protocol"

  2708. httpproxy_protocol_select="tcp_protocol"

  2709. https_protocol_select="tls_protocol"

  2710. icecast_protocol_select="http_protocol"

  2711. librtmp_protocol_deps="librtmp"

  2712. librtmpe_protocol_deps="librtmp"

  2713. librtmps_protocol_deps="librtmp"

  2714. librtmpt_protocol_deps="librtmp"

  2715. librtmpte_protocol_deps="librtmp"

  2716. libsmbclient_protocol_deps="libsmbclient gplv3"

  2717. libssh_protocol_deps="libssh"

  2718. mmsh_protocol_select="http_protocol"

  2719. mmst_protocol_select="network"

  2720. rtmp_protocol_deps="!librtmp_protocol"

  2721. rtmp_protocol_select="tcp_protocol"

  2722. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2723. rtmps_protocol_deps="!librtmp_protocol"

  2724. rtmps_protocol_select="tls_protocol"

  2725. rtmpt_protocol_select="ffrtmphttp_protocol"

  2726. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2727. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2728. rtp_protocol_select="udp_protocol"

  2729. sctp_protocol_deps="struct_sctp_event_subscribe"

  2730. sctp_protocol_select="network"

  2731. srtp_protocol_select="rtp_protocol"

  2732. tcp_protocol_select="network"

  2733. tls_gnutls_protocol_deps="gnutls !tls_securetransport_protocol"

  2734. tls_gnutls_protocol_select="tcp_protocol"

  2735. tls_openssl_protocol_deps="openssl !tls_securetransport_protocol !tls_gnutls_protocol"

  2736. tls_openssl_protocol_select="tcp_protocol"

  2737. tls_securetransport_protocol_deps="securetransport"

  2738. tls_securetransport_protocol_select="tcp_protocol"

  2739. tls_protocol_deps_any="tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  2740. udp_protocol_select="network"

  2741. udplite_protocol_select="network"

  2742. unix_protocol_deps="sys_un_h"

  2743. unix_protocol_select="network"

  2744. 

  2745. # filters

  2746. amovie_filter_deps="avcodec avformat"

  2747. aresample_filter_deps="swresample"

  2748. ass_filter_deps="libass"

  2749. asyncts_filter_deps="avresample"

  2750. atempo_filter_deps="avcodec"

  2751. atempo_filter_select="rdft"

  2752. azmq_filter_deps="libzmq"

  2753. blackframe_filter_deps="gpl"

  2754. boxblur_filter_deps="gpl"

  2755. bs2b_filter_deps="libbs2b"

  2756. colormatrix_filter_deps="gpl"

  2757. cover_rect_filter_deps="avcodec avformat gpl"

  2758. cropdetect_filter_deps="gpl"

  2759. delogo_filter_deps="gpl"

  2760. deshake_filter_select="pixelutils"

  2761. drawtext_filter_deps="libfreetype"

  2762. dynaudnorm_filter_deps="copysign erf"

  2763. ebur128_filter_deps="gpl"

  2764. eq_filter_deps="gpl"

  2765. fftfilt_filter_deps="avcodec"

  2766. fftfilt_filter_select="rdft"

  2767. flite_filter_deps="libflite"

  2768. find_rect_filter_deps="avcodec avformat gpl"

  2769. frei0r_filter_deps="frei0r dlopen"

  2770. frei0r_src_filter_deps="frei0r dlopen"

  2771. fspp_filter_deps="gpl"

  2772. geq_filter_deps="gpl"

  2773. histeq_filter_deps="gpl"

  2774. hqdn3d_filter_deps="gpl"

  2775. interlace_filter_deps="gpl"

  2776. kerndeint_filter_deps="gpl"

  2777. ladspa_filter_deps="ladspa dlopen"

  2778. mcdeint_filter_deps="avcodec gpl"

  2779. movie_filter_deps="avcodec avformat"

  2780. mpdecimate_filter_deps="gpl"

  2781. mpdecimate_filter_select="pixelutils"

  2782. mptestsrc_filter_deps="gpl"

  2783. negate_filter_deps="lut_filter"

  2784. perspective_filter_deps="gpl"

  2785. pp7_filter_deps="gpl"

  2786. ocr_filter_deps="libtesseract"

  2787. ocv_filter_deps="libopencv"

  2788. owdenoise_filter_deps="gpl"

  2789. pan_filter_deps="swresample"

  2790. phase_filter_deps="gpl"

  2791. pp_filter_deps="gpl postproc"

  2792. pullup_filter_deps="gpl"

  2793. removelogo_filter_deps="avcodec avformat swscale"

  2794. repeatfields_filter_deps="gpl"

  2795. resample_filter_deps="avresample"

  2796. rubberband_filter_deps="librubberband"

  2797. sab_filter_deps="gpl swscale"

  2798. scale_filter_deps="swscale"

  2799. scale2ref_filter_deps="swscale"

  2800. select_filter_select="pixelutils"

  2801. smartblur_filter_deps="gpl swscale"

  2802. showcqt_filter_deps="avcodec"

  2803. showcqt_filter_select="fft"

  2804. showfreqs_filter_deps="avcodec"

  2805. showfreqs_filter_select="fft"

  2806. showspectrum_filter_deps="avcodec"

  2807. showspectrum_filter_select="rdft"

  2808. spp_filter_deps="gpl avcodec"

  2809. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  2810. stereo3d_filter_deps="gpl"

  2811. subtitles_filter_deps="avformat avcodec libass"

  2812. super2xsai_filter_deps="gpl"

  2813. tinterlace_filter_deps="gpl"

  2814. vidstabdetect_filter_deps="libvidstab"

  2815. vidstabtransform_filter_deps="libvidstab"

  2816. pixfmts_super2xsai_test_deps="super2xsai_filter"

  2817. tinterlace_merge_test_deps="tinterlace_filter"

  2818. tinterlace_pad_test_deps="tinterlace_filter"

  2819. uspp_filter_deps="gpl avcodec"

  2820. zmq_filter_deps="libzmq"

  2821. zoompan_filter_deps="swscale"

  2822. 

  2823. # examples

  2824. avio_reading="avformat avcodec avutil"

  2825. avio_dir_cmd="avformat avutil"

  2826. avcodec_example_deps="avcodec avutil"

  2827. decoding_encoding_example_deps="avcodec avformat avutil"

  2828. demuxing_decoding_example_deps="avcodec avformat avutil"

  2829. extract_mvs_example_deps="avcodec avformat avutil"

  2830. filter_audio_example_deps="avfilter avutil"

  2831. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  2832. filtering_video_example_deps="avfilter avcodec avformat avutil"

  2833. metadata_example_deps="avformat avutil"

  2834. muxing_example_deps="avcodec avformat avutil swscale"

  2835. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  2836. remuxing_example_deps="avcodec avformat avutil"

  2837. resampling_audio_example_deps="avutil swresample"

  2838. scaling_video_example_deps="avutil swscale"

  2839. transcode_aac_example_deps="avcodec avformat swresample"

  2840. transcoding_example_deps="avfilter avcodec avformat avutil"

  2841. 

  2842. # libraries, in linking order

  2843. avcodec_deps="avutil"

  2844. avdevice_deps="avformat avcodec avutil"

  2845. avfilter_deps="avutil"

  2846. avformat_deps="avcodec avutil"

  2847. avresample_deps="avutil"

  2848. postproc_deps="avutil gpl"

  2849. swresample_deps="avutil"

  2850. swscale_deps="avutil"

  2851. 

  2852. # programs

  2853. ffmpeg_deps="avcodec avfilter avformat swresample"

  2854. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  2855.                null_filter

  2856.                setpts_filter trim_filter"

  2857. ffplay_deps="avcodec avformat swscale swresample sdl"

  2858. ffplay_libs='$sdl_libs'

  2859. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  2860. ffprobe_deps="avcodec avformat"

  2861. ffserver_deps="avformat fork sarestart"

  2862. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  2863. 

  2864. # documentation

  2865. podpages_deps="perl"

  2866. manpages_deps="perl pod2man"

  2867. htmlpages_deps="perl"

  2868. htmlpages_deps_any="makeinfo_html texi2html"

  2869. txtpages_deps="perl makeinfo"

  2870. doc_deps_any="manpages htmlpages podpages txtpages"

  2871. 

  2872. # default parameters

  2873. 

  2874. logfile="config.log"

  2875. 

  2876. # installation paths

  2877. prefix_default="/usr/local"

  2878. bindir_default='${prefix}/bin'

  2879. datadir_default='${prefix}/share/ffmpeg'

  2880. docdir_default='${prefix}/share/doc/ffmpeg'

  2881. incdir_default='${prefix}/include'

  2882. libdir_default='${prefix}/lib'

  2883. mandir_default='${prefix}/share/man'

  2884. 

  2885. # toolchain

  2886. ar_default="ar"

  2887. cc_default="gcc"

  2888. cxx_default="g++"

  2889. host_cc_default="gcc"

  2890. cp_f="cp -f"

  2891. doxygen_default="doxygen"

  2892. install="install"

  2893. ln_s="ln -s -f"

  2894. nm_default="nm -g"

  2895. objformat="elf"

  2896. pkg_config_default=pkg-config

  2897. ranlib_default="ranlib"

  2898. strip_default="strip"

  2899. yasmexe_default="yasm"

  2900. windres_default="windres"

  2901. 

  2902. # OS

  2903. target_os_default=$(tolower $(uname -s))

  2904. host_os=$target_os_default

  2905. 

  2906. # machine

  2907. if test "$target_os_default" = aix; then

  2908.     arch_default=$(uname -p)

  2909.     strip_default="strip -X32_64"

  2910. else

  2911.     arch_default=$(uname -m)

  2912. fi

  2913. cpu="generic"

  2914. intrinsics="none"

  2915. 

  2916. # configurable options

  2917. enable $PROGRAM_LIST

  2918. enable $DOCUMENT_LIST

  2919. enable $EXAMPLE_LIST

  2920. enable $(filter_out avresample $LIBRARY_LIST)

  2921. enable stripping

  2922. 

  2923. enable asm

  2924. enable debug

  2925. enable doc

  2926. enable faan faandct faanidct

  2927. enable optimizations

  2928. enable runtime_cpudetect

  2929. enable safe_bitstream_reader

  2930. enable static

  2931. enable swscale_alpha

  2932. enable valgrind_backtrace

  2933. 

  2934. sws_max_filter_size_default=256

  2935. set_default sws_max_filter_size

  2936. 

  2937. # Enable hwaccels by default.

  2938. enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc

  2939. enable xlib

  2940. 

  2941. # build settings

  2942. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  2943. LIBPREF="lib"

  2944. LIBSUF=".a"

  2945. FULLNAME='$(NAME)$(BUILDSUF)'

  2946. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  2947. SLIBPREF="lib"

  2948. SLIBSUF=".so"

  2949. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  2950. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  2951. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  2952. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  2953. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  2954. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  2955. 

  2956. asflags_filter=echo

  2957. cflags_filter=echo

  2958. ldflags_filter=echo

  2959. 

  2960. AS_C='-c'

  2961. AS_O='-o $@'

  2962. CC_C='-c'

  2963. CC_E='-E -o $@'

  2964. CC_O='-o $@'

  2965. CXX_C='-c'

  2966. CXX_O='-o $@'

  2967. LD_O='-o $@'

  2968. LD_LIB='-l%'

  2969. LD_PATH='-L'

  2970. HOSTCC_C='-c'

  2971. HOSTCC_E='-E -o $@'

  2972. HOSTCC_O='-o $@'

  2973. HOSTLD_O='-o $@'

  2974. 

  2975. host_libs='-lm'

  2976. host_cflags_filter=echo

  2977. host_ldflags_filter=echo

  2978. 

  2979. target_path='$(CURDIR)'

  2980. 

  2981. # since the object filename is not given with the -MM flag, the compiler

  2982. # is only able to print the basename, and we must add the path ourselves

  2983. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'

  2984. DEPFLAGS='-MM'

  2985. 

  2986. # find source path

  2987. if test -f configure; then

  2988.     source_path=.

  2989. else

  2990.     source_path=$(cd $(dirname "$0"); pwd)

  2991.     case "$source_path" in

  2992.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  2993.     esac

  2994.     test -e "$source_path/config.h" &&

  2995.         die "Out of tree builds are impossible with config.h in source dir."

  2996. fi

  2997. 

  2998. for v in "$@"; do

  2999.     r=${v#*=}

  3000.     l=${v%"$r"}

  3001.     r=$(sh_quote "$r")

  3002.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3003. done

  3004. 

  3005. find_things(){

  3006.     thing=$1

  3007.     pattern=$2

  3008.     file=$source_path/$3

  3009.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3010. }

  3011. 

  3012. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3013. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3014. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3015. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3016. BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)

  3017. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3018. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3019. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3020. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3021. PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)

  3022. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3023. 

  3024. ALL_COMPONENTS="

  3025.     $BSF_LIST

  3026.     $DECODER_LIST

  3027.     $DEMUXER_LIST

  3028.     $ENCODER_LIST

  3029.     $FILTER_LIST

  3030.     $HWACCEL_LIST

  3031.     $INDEV_LIST

  3032.     $MUXER_LIST

  3033.     $OUTDEV_LIST

  3034.     $PARSER_LIST

  3035.     $PROTOCOL_LIST

  3036. "

  3037. 

  3038. for n in $COMPONENT_LIST; do

  3039.     v=$(toupper ${n%s})_LIST

  3040.     eval enable \$$v

  3041.     eval ${n}_if_any="\$$v"

  3042. done

  3043. 

  3044. enable $ARCH_EXT_LIST

  3045. 

  3046. die_unknown(){

  3047.     echo "Unknown option \"$1\"."

  3048.     echo "See $0 --help for available options."

  3049.     exit 1

  3050. }

  3051. 

  3052. print_in_columns() {

  3053.     cols=$(expr $ncols / 24)

  3054.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3055. }

  3056. 

  3057. show_list() {

  3058.     suffix=_$1

  3059.     shift

  3060.     echo $* | sed s/$suffix//g | print_in_columns

  3061.     exit 0

  3062. }

  3063. 

  3064. rand_list(){

  3065.     IFS=', '

  3066.     set -- $*

  3067.     unset IFS

  3068.     for thing; do

  3069.         comp=${thing%:*}

  3070.         prob=${thing#$comp}

  3071.         prob=${prob#:}

  3072.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3073.         echo "prob ${prob:-0.5}"

  3074.         printf '%s\n' $comp

  3075.     done

  3076. }

  3077. 

  3078. do_random(){

  3079.     action=$1

  3080.     shift

  3081.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3082.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3083. }

  3084. 

  3085. for opt do

  3086.     optval="${opt#*=}"

  3087.     case "$opt" in

  3088.         --extra-ldflags=*)

  3089.             add_ldflags $optval

  3090.         ;;

  3091.         --extra-ldexeflags=*)

  3092.             add_ldexeflags $optval

  3093.         ;;

  3094.         --extra-ldlibflags=*)

  3095.             add_ldlibflags $optval

  3096.         ;;

  3097.         --extra-libs=*)

  3098.             add_extralibs $optval

  3099.         ;;

  3100.         --disable-devices)

  3101.             disable $INDEV_LIST $OUTDEV_LIST

  3102.         ;;

  3103.         --enable-debug=*)

  3104.             debuglevel="$optval"

  3105.         ;;

  3106.         --disable-programs)

  3107.             disable $PROGRAM_LIST

  3108.         ;;

  3109.         --disable-everything)

  3110.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3111.         ;;

  3112.         --disable-all)

  3113.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3114.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3115.         ;;

  3116.         --enable-random|--disable-random)

  3117.             action=${opt%%-random}

  3118.             do_random ${action#--} $COMPONENT_LIST

  3119.         ;;

  3120.         --enable-random=*|--disable-random=*)

  3121.             action=${opt%%-random=*}

  3122.             do_random ${action#--} $optval

  3123.         ;;

  3124.         --enable-*=*|--disable-*=*)

  3125.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3126.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3127.             eval list=\$$(toupper $thing)_LIST

  3128.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3129.             list=$(filter "$name" $list)

  3130.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3131.             $action $list

  3132.         ;;

  3133.         --enable-?*|--disable-?*)

  3134.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3135.             if is_in $option $COMPONENT_LIST; then

  3136.                 test $action = disable && action=unset

  3137.                 eval $action \$$(toupper ${option%s})_LIST

  3138.             elif is_in $option $CMDLINE_SELECT; then

  3139.                 $action $option

  3140.             else

  3141.                 die_unknown $opt

  3142.             fi

  3143.         ;;

  3144.         --list-*)

  3145.             NAME="${opt#--list-}"

  3146.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3147.             NAME=${NAME%s}

  3148.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3149.         ;;

  3150.         --help|-h) show_help

  3151.         ;;

  3152.         --fatal-warnings) enable fatal_warnings

  3153.         ;;

  3154.         *)

  3155.             optname="${opt%%=*}"

  3156.             optname="${optname#--}"

  3157.             optname=$(echo "$optname" | sed 's/-/_/g')

  3158.             if is_in $optname $CMDLINE_SET; then

  3159.                 eval $optname='$optval'

  3160.             elif is_in $optname $CMDLINE_APPEND; then

  3161.                 append $optname "$optval"

  3162.             else

  3163.                 die_unknown $opt

  3164.             fi

  3165.         ;;

  3166.     esac

  3167. done

  3168. 

  3169. for e in $env; do

  3170.     eval "export $e"

  3171. done

  3172. 

  3173. disabled logging && logfile=/dev/null

  3174. 

  3175. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3176. set >> $logfile

  3177. 

  3178. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3179. 

  3180. case "$toolchain" in

  3181.     clang-asan)

  3182.         cc_default="clang"

  3183.         add_cflags  -fsanitize=address

  3184.         add_ldflags -fsanitize=address

  3185.     ;;

  3186.     clang-tsan)

  3187.         cc_default="clang"

  3188.         add_cflags  -fsanitize=thread -pie

  3189.         add_ldflags -fsanitize=thread -pie

  3190.     ;;

  3191.     clang-usan)

  3192.         cc_default="clang"

  3193.         add_cflags  -fsanitize=undefined

  3194.         add_ldflags -fsanitize=undefined

  3195.     ;;

  3196.     gcc-asan)

  3197.         cc_default="gcc"

  3198.         add_cflags  -fsanitize=address

  3199.         add_ldflags -fsanitize=address

  3200.     ;;

  3201.     gcc-tsan)

  3202.         cc_default="gcc"

  3203.         add_cflags  -fsanitize=thread -pie -fPIC

  3204.         add_ldflags -fsanitize=thread -pie -fPIC

  3205.     ;;

  3206.     gcc-usan)

  3207.         cc_default="gcc"

  3208.         add_cflags  -fsanitize=undefined

  3209.         add_ldflags -fsanitize=undefined

  3210.     ;;

  3211.     valgrind-massif)

  3212.         target_exec_default=${valgrind:-"valgrind"}

  3213.         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"

  3214.     ;;

  3215.     valgrind-memcheck)

  3216.         target_exec_default=${valgrind:-"valgrind"}

  3217.         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"

  3218.     ;;

  3219.     msvc)

  3220.         # Check whether the current MSVC version needs the C99 converter.

  3221.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3222.         # support enough of C99 to build ffmpeg. Default to the new

  3223.         # behaviour if the regexp was unable to match anything, since this

  3224.         # successfully parses the version number of existing supported

  3225.         # versions that require the converter (MSVC 2010 and 2012).

  3226.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3227.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3228.             cc_default="cl"

  3229.         else

  3230.             cc_default="c99wrap cl"

  3231.         fi

  3232.         ld_default="$source_path/compat/windows/mslink"

  3233.         nm_default="dumpbin -symbols"

  3234.         ar_default="lib"

  3235.         case "$arch" in

  3236.         arm*)

  3237.             as_default="armasm"

  3238.             ;;

  3239.         esac

  3240.         target_os_default="win32"

  3241.         # Use a relative path for TMPDIR. This makes sure all the

  3242.         # ffconf temp files are written with a relative path, avoiding

  3243.         # issues with msys/win32 path conversion for MSVC parameters

  3244.         # such as -Fo<file> or -out:<file>.

  3245.         TMPDIR=.

  3246.     ;;

  3247.     icl)

  3248.         cc_default="icl"

  3249.         ld_default="xilink"

  3250.         nm_default="dumpbin -symbols"

  3251.         ar_default="xilib"

  3252.         target_os_default="win32"

  3253.         TMPDIR=.

  3254.     ;;

  3255.     gcov)

  3256.         add_cflags  -fprofile-arcs -ftest-coverage

  3257.         add_ldflags -fprofile-arcs -ftest-coverage

  3258.     ;;

  3259.     hardened)

  3260.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3261.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3262.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3263.     ;;

  3264.     ?*)

  3265.         die "Unknown toolchain $toolchain"

  3266.     ;;

  3267. esac

  3268. 

  3269. test -n "$cross_prefix" && enable cross_compile

  3270. 

  3271. if enabled cross_compile; then

  3272.     test -n "$arch" && test -n "$target_os" ||

  3273.         die "Must specify target arch and OS when cross-compiling"

  3274. fi

  3275. 

  3276. ar_default="${cross_prefix}${ar_default}"

  3277. cc_default="${cross_prefix}${cc_default}"

  3278. cxx_default="${cross_prefix}${cxx_default}"

  3279. nm_default="${cross_prefix}${nm_default}"

  3280. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3281. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3282.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3283. else

  3284.     ranlib_default="${cross_prefix}${ranlib_default}"

  3285. fi

  3286. strip_default="${cross_prefix}${strip_default}"

  3287. windres_default="${cross_prefix}${windres_default}"

  3288. 

  3289. sysinclude_default="${sysroot}/usr/include"

  3290. 

  3291. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3292.     target_exec target_os yasmexe

  3293. enabled cross_compile || host_cc_default=$cc

  3294. set_default host_cc

  3295. 

  3296. pkg_config_fail_message=""

  3297. if ! $pkg_config --version >/dev/null 2>&1; then

  3298.     warn "$pkg_config not found, library detection may fail."

  3299.     pkg_config=false

  3300. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3301.     pkg_config_fail_message="

  3302. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3303. fi

  3304. 

  3305. if test $doxygen != $doxygen_default && \

  3306.   ! $doxygen --version >/dev/null 2>&1; then

  3307.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3308. fi

  3309. 

  3310. exesuf() {

  3311.     case $1 in

  3312.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3313.     esac

  3314. }

  3315. 

  3316. EXESUF=$(exesuf $target_os)

  3317. HOSTEXESUF=$(exesuf $host_os)

  3318. 

  3319. # set temporary file name

  3320. : ${TMPDIR:=$TEMPDIR}

  3321. : ${TMPDIR:=$TMP}

  3322. : ${TMPDIR:=/tmp}

  3323. 

  3324. if [ -n "$tempprefix" ] ; then

  3325.     mktemp(){

  3326.         echo $tempprefix.${HOSTNAME}.${UID}

  3327.     }

  3328. elif ! check_cmd mktemp -u XXXXXX; then

  3329.     # simple replacement for missing mktemp

  3330.     # NOT SAFE FOR GENERAL USE

  3331.     mktemp(){

  3332.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3333.     }

  3334. fi

  3335. 

  3336. tmpfile(){

  3337.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3338.         (set -C; exec > $tmp) 2>/dev/null ||

  3339.         die "Unable to create temporary file in $TMPDIR."

  3340.     append TMPFILES $tmp

  3341.     eval $1=$tmp

  3342. }

  3343. 

  3344. trap 'rm -f -- $TMPFILES' EXIT

  3345. 

  3346. tmpfile TMPASM .asm

  3347. tmpfile TMPC   .c

  3348. tmpfile TMPCPP .cpp

  3349. tmpfile TMPE   $EXESUF

  3350. tmpfile TMPH   .h

  3351. tmpfile TMPM   .m

  3352. tmpfile TMPO   .o

  3353. tmpfile TMPS   .S

  3354. tmpfile TMPSH  .sh

  3355. tmpfile TMPV   .ver

  3356. 

  3357. unset -f mktemp

  3358. 

  3359. chmod +x $TMPE

  3360. 

  3361. # make sure we can execute files in $TMPDIR

  3362. cat > $TMPSH 2>> $logfile <<EOF

  3363. #! /bin/sh

  3364. EOF

  3365. chmod +x $TMPSH >> $logfile 2>&1

  3366. if ! $TMPSH >> $logfile 2>&1; then

  3367.     cat <<EOF

  3368. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3369. variable to another directory and make sure that it is not mounted noexec.

  3370. EOF

  3371.     die "Sanity test failed."

  3372. fi

  3373. 

  3374. armasm_flags(){

  3375.     for flag; do

  3376.         case $flag in

  3377.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3378.             # be passed to gas-preprocessor

  3379.             -M[TD]*)                                            ;;

  3380.             *)                  echo $flag                      ;;

  3381.         esac

  3382.    done

  3383. }

  3384. 

  3385. ccc_flags(){

  3386.     for flag; do

  3387.         case $flag in

  3388.             -std=c99)           echo -c99                       ;;

  3389.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3390.             -mieee)             echo -ieee                      ;;

  3391.             -O*|-fast)          echo $flag                      ;;

  3392.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3393.             -g)                 echo -g3                        ;;

  3394.             -Wall)              echo -msg_enable level2         ;;

  3395.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3396.             -Wl,*)              echo $flag                      ;;

  3397.             -f*|-W*)                                            ;;

  3398.             *)                  echo $flag                      ;;

  3399.         esac

  3400.    done

  3401. }

  3402. 

  3403. cparser_flags(){

  3404.     for flag; do

  3405.         case $flag in

  3406.             -Wno-switch)             echo -Wno-switch-enum ;;

  3407.             -Wno-format-zero-length) ;;

  3408.             -Wdisabled-optimization) ;;

  3409.             -Wno-pointer-sign)       echo -Wno-other ;;

  3410.             *)                       echo $flag ;;

  3411.         esac

  3412.     done

  3413. }

  3414. 

  3415. msvc_common_flags(){

  3416.     for flag; do

  3417.         case $flag in

  3418.             # In addition to specifying certain flags under the compiler

  3419.             # specific filters, they must be specified here as well or else the

  3420.             # generic catch all at the bottom will print the original flag.

  3421.             -Wall)                ;;

  3422.             -std=c99)             ;;

  3423.             # Common flags

  3424.             -fomit-frame-pointer) ;;

  3425.             -g)                   echo -Z7 ;;

  3426.             -fno-math-errno)      ;;

  3427.             -fno-common)          ;;

  3428.             -fno-signed-zeros)    ;;

  3429.             -fPIC)                ;;

  3430.             -mthumb)              ;;

  3431.             -march=*)             ;;

  3432.             -lz)                  echo zlib.lib ;;

  3433.             -lavifil32)           echo vfw32.lib ;;

  3434.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3435.             -l*)                  echo ${flag#-l}.lib ;;

  3436.             -LARGEADDRESSAWARE)   echo $flag ;;

  3437.             -L*)                  echo -libpath:${flag#-L} ;;

  3438.             *)                    echo $flag ;;

  3439.         esac

  3440.     done

  3441. }

  3442. 

  3443. msvc_flags(){

  3444.     msvc_common_flags "$@"

  3445.     for flag; do

  3446.         case $flag in

  3447.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3448.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3449.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3450.                                        -wd4307 \

  3451.                                        -wd4273 -wd4554 -wd4701 ;;

  3452.         esac

  3453.     done

  3454. }

  3455. 

  3456. icl_flags(){

  3457.     msvc_common_flags "$@"

  3458.     for flag; do

  3459.         case $flag in

  3460.             # Despite what Intel's documentation says -Wall, which is supported

  3461.             # on Windows, does enable remarks so disable them here.

  3462.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3463.             -std=c99)             echo -Qstd=c99 ;;

  3464.             -flto)                echo -ipo ;;

  3465.         esac

  3466.     done

  3467. }

  3468. 

  3469. icc_flags(){

  3470.     for flag; do

  3471.         case $flag in

  3472.             -flto)                echo -ipo ;;

  3473.             *)                    echo $flag ;;

  3474.         esac

  3475.     done

  3476. }

  3477. 

  3478. pgi_flags(){

  3479.     for flag; do

  3480.         case $flag in

  3481.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3482.             -fomit-frame-pointer) echo -Mnoframe ;;

  3483.             -g)                   echo -gopt ;;

  3484.             *)                    echo $flag ;;

  3485.         esac

  3486.     done

  3487. }

  3488. 

  3489. suncc_flags(){

  3490.     for flag; do

  3491.         case $flag in

  3492.             -march=*|-mcpu=*)

  3493.                 case "${flag#*=}" in

  3494.                     native)                   echo -xtarget=native       ;;

  3495.                     v9|niagara)               echo -xarch=sparc          ;;

  3496.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3497.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3498.                     i586|pentium)             echo -xchip=pentium        ;;

  3499.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3500.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3501.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3502.                     pentium4*)          echo -xtarget=pentium4           ;;

  3503.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3504.                     *-sse3)             echo -xarch=sse3                 ;;

  3505.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3506.                     bonnell)                   echo -xarch=ssse3         ;;

  3507.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3508.                     westmere)                  echo -xtarget=westmere    ;;

  3509.                     silvermont)                echo -xarch=sse4_2        ;;

  3510.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3511.                     core-avx*|ivybridge|haswell|broadwell)

  3512.                                                echo -xarch=avx           ;;

  3513.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3514.                     btver1)                    echo -xarch=amdsse4a      ;;

  3515.                     btver2|bdver*)             echo -xarch=avx           ;;

  3516.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3517.                     k8|opteron|athlon64|athlon-fx)

  3518.                                                echo -xarch=sse2a         ;;

  3519.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3520.                 esac

  3521.                 ;;

  3522.             -std=c99)             echo -xc99              ;;

  3523.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3524.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3525.             -W*,*)                echo $flag              ;;

  3526.             -f*-*|-W*|-mimpure-text)                      ;;

  3527.             -shared)              echo -G                 ;;

  3528.             *)                    echo $flag              ;;

  3529.         esac

  3530.     done

  3531. }

  3532. 

  3533. tms470_flags(){

  3534.     for flag; do

  3535.         case $flag in

  3536.             -march=*|-mcpu=*)

  3537.                 case "${flag#*=}" in

  3538.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3539.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3540.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3541.                     armv6*|arm11*)          echo -mv=6   ;;

  3542.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3543.                                             echo -mv=5e  ;;

  3544.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3545.                 esac

  3546.                 ;;

  3547.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3548.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3549.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3550.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3551.             -msoft-float)   echo --float_support=vfplib       ;;

  3552.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3553.             -g)             echo -g -mn                       ;;

  3554.             -pds=*)         echo $flag                        ;;

  3555.             -D*|-I*)        echo $flag                        ;;

  3556.             --gcc|--abi=*)  echo $flag                        ;;

  3557.             -me)            echo $flag                        ;;

  3558.         esac

  3559.     done

  3560. }

  3561. 

  3562. probe_cc(){

  3563.     pfx=$1

  3564.     _cc=$2

  3565.     first=$3

  3566. 

  3567.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3568.     unset _ld_o _ldflags _ld_lib _ld_path

  3569.     unset _depflags _DEPCMD _DEPFLAGS

  3570.     _flags_filter=echo

  3571. 

  3572.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3573.         true # no-op to avoid reading stdin in following checks

  3574.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3575.         _type=llvm_gcc

  3576.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3577.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3578.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3579.         _cflags_speed='-O3'

  3580.         _cflags_size='-Os'

  3581.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3582.         _type=gcc

  3583.         gcc_version=$($_cc --version | head -n1)

  3584.         gcc_basever=$($_cc -dumpversion)

  3585.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3586.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3587.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3588.         case $gcc_basever in

  3589.             2*) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3590.         esac

  3591.         if [ "$first" = true ]; then

  3592.             case $gcc_basever in

  3593.                 4.2*)

  3594.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3595.             esac

  3596.         fi

  3597.         _cflags_speed='-O3'

  3598.         _cflags_size='-Os'

  3599.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3600.         _type=icc

  3601.         _ident=$($_cc --version | head -n1)

  3602.         _depflags='-MMD'

  3603.         _cflags_speed='-O3'

  3604.         _cflags_size='-Os'

  3605.         _cflags_noopt='-O1'

  3606.         _flags_filter=icc_flags

  3607.     elif $_cc -v 2>&1 | grep -q xlc; then

  3608.         _type=xlc

  3609.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3610.         _cflags_speed='-O5'

  3611.         _cflags_size='-O5 -qcompact'

  3612.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3613.         _type=ccc

  3614.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3615.         _DEPFLAGS='-M'

  3616.         _cflags_speed='-fast'

  3617.         _cflags_size='-O1'

  3618.         _flags_filter=ccc_flags

  3619.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3620.         test -d "$sysroot" || die "No valid sysroot specified."

  3621.         _type=armcc

  3622.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3623.         armcc_conf="$PWD/armcc.conf"

  3624.         $_cc --arm_linux_configure                 \

  3625.              --arm_linux_config_file="$armcc_conf" \

  3626.              --configure_sysroot="$sysroot"        \

  3627.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3628.              die "Error creating armcc configuration file."

  3629.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3630.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3631.         as_default="${cross_prefix}gcc"

  3632.         _depflags='-MMD'

  3633.         _cflags_speed='-O3'

  3634.         _cflags_size='-Os'

  3635.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3636.         _type=tms470

  3637.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3638.         _flags='--gcc --abi=eabi -me'

  3639.         _cc_e='-ppl -fe=$@'

  3640.         _cc_o='-fe=$@'

  3641.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3642.         _cflags_speed='-O3 -mf=5'

  3643.         _cflags_size='-O3 -mf=2'

  3644.         _flags_filter=tms470_flags

  3645.     elif $_cc -v 2>&1 | grep -q clang; then

  3646.         _type=clang

  3647.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3648.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3649.         _cflags_speed='-O3'

  3650.         _cflags_size='-Os'

  3651.     elif $_cc -V 2>&1 | grep -q Sun; then

  3652.         _type=suncc

  3653.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3654.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3655.         _DEPFLAGS='-xM1 -xc99'

  3656.         _ldflags='-std=c99'

  3657.         _cflags_speed='-O5'

  3658.         _cflags_size='-O5 -xspace'

  3659.         _flags_filter=suncc_flags

  3660.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3661.         _type=pathscale

  3662.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3663.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3664.         _cflags_speed='-O2'

  3665.         _cflags_size='-Os'

  3666.         _flags_filter='filter_out -Wdisabled-optimization'

  3667.     elif $_cc -v 2>&1 | grep -q Open64; then

  3668.         _type=open64

  3669.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3670.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3671.         _cflags_speed='-O2'

  3672.         _cflags_size='-Os'

  3673.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3674.     elif $_cc -V 2>&1 | grep -q Portland; then

  3675.         _type=pgi

  3676.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3677.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  3678.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  3679.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  3680.         _cflags_noopt="-O"

  3681.         _flags_filter=pgi_flags

  3682.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  3683.         _type=armasm

  3684.         _ident=$($_cc | head -n1)

  3685.         # 4509: "This form of conditional instruction is deprecated"

  3686.         _flags="-nologo -ignore 4509"

  3687.         _flags_filter=armasm_flags

  3688.     elif $_cc 2>&1 | grep -q Intel; then

  3689.         _type=icl

  3690.         _ident=$($_cc 2>&1 | head -n1)

  3691.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  3692.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  3693.         # versions (tested) as well.

  3694.         _cflags_speed="-O2"

  3695.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  3696.         if $_cc 2>&1 | grep -q Linker; then

  3697.             _ld_o='-out:$@'

  3698.         else

  3699.             _ld_o='-Fe$@'

  3700.         fi

  3701.         _cc_o='-Fo$@'

  3702.         _cc_e='-P'

  3703.         _flags_filter=icl_flags

  3704.         _ld_lib='lib%.a'

  3705.         _ld_path='-libpath:'

  3706.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  3707.         _flags='-nologo -Qdiag-error:4044,10157'

  3708.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  3709.         # with MSVC which enables it by default.

  3710.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  3711.         disable stripping

  3712.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  3713.         _type=msvc

  3714.         _ident=$($_cc 2>&1 | head -n1)

  3715.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  3716.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  3717.         _cflags_speed="-O2"

  3718.         _cflags_size="-O1"

  3719.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  3720.             _ld_o='-out:$@'

  3721.         else

  3722.             _ld_o='-Fe$@'

  3723.         fi

  3724.         _cc_o='-Fo$@'

  3725.         _cc_e='-P -Fi$@'

  3726.         _flags_filter=msvc_flags

  3727.         _ld_lib='lib%.a'

  3728.         _ld_path='-libpath:'

  3729.         _flags='-nologo'

  3730.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS'

  3731.         disable stripping

  3732.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  3733.         _type=cparser

  3734.         _ident=$($_cc --version | head -n1)

  3735.         _depflags='-MMD'

  3736.         _cflags_speed='-O4'

  3737.         _cflags_size='-O2'

  3738.         _flags_filter=cparser_flags

  3739.     fi

  3740. 

  3741.     eval ${pfx}_type=\$_type

  3742.     eval ${pfx}_ident=\$_ident

  3743. }

  3744. 

  3745. set_ccvars(){

  3746.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  3747.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  3748.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  3749. 

  3750.     if [ -n "$_depflags" ]; then

  3751.         eval ${1}_DEPFLAGS=\$_depflags

  3752.     else

  3753.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  3754.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  3755.         eval DEP${1}FLAGS=\$_flags

  3756.     fi

  3757. }

  3758. 

  3759. probe_cc cc "$cc" "true"

  3760. cflags_filter=$_flags_filter

  3761. cflags_speed=$_cflags_speed

  3762. cflags_size=$_cflags_size

  3763. cflags_noopt=$_cflags_noopt

  3764. add_cflags $_flags $_cflags

  3765. cc_ldflags=$_ldflags

  3766. set_ccvars CC

  3767. 

  3768. probe_cc hostcc "$host_cc"

  3769. host_cflags_filter=$_flags_filter

  3770. add_host_cflags  $_flags $_cflags

  3771. set_ccvars HOSTCC

  3772. 

  3773. test -n "$cc_type" && enable $cc_type ||

  3774.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  3775. 

  3776. : ${as_default:=$cc}

  3777. : ${dep_cc_default:=$cc}

  3778. : ${ld_default:=$cc}

  3779. : ${host_ld_default:=$host_cc}

  3780. set_default ar as dep_cc ld host_ld windres

  3781. 

  3782. probe_cc as "$as"

  3783. asflags_filter=$_flags_filter

  3784. add_asflags $_flags $_cflags

  3785. set_ccvars AS

  3786. 

  3787. probe_cc ld "$ld"

  3788. ldflags_filter=$_flags_filter

  3789. add_ldflags $_flags $_ldflags

  3790. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  3791. LD_O=${_ld_o-$LD_O}

  3792. LD_LIB=${_ld_lib-$LD_LIB}

  3793. LD_PATH=${_ld_path-$LD_PATH}

  3794. 

  3795. probe_cc hostld "$host_ld"

  3796. host_ldflags_filter=$_flags_filter

  3797. add_host_ldflags $_flags $_ldflags

  3798. HOSTLD_O=${_ld_o-$HOSTLD_O}

  3799. 

  3800. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  3801.     probe_cc depcc "$dep_cc"

  3802.     CCDEP=${_DEPCMD:-$DEPCMD}

  3803.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  3804.     DEPCCFLAGS=$_flags

  3805. fi

  3806. 

  3807. if $ar 2>&1 | grep -q Microsoft; then

  3808.     arflags="-nologo"

  3809.     ar_o='-out:$@'

  3810. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  3811.     arflags="rq"

  3812.     ar_o='$@'

  3813. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  3814.     arflags='-Xany -r -c'

  3815.     ar_o='$@'

  3816. elif $ar 2>&1 | grep -q "\[D\] "; then

  3817.     arflags="rcD"

  3818.     ar_o='$@'

  3819. else

  3820.     arflags="rc"

  3821.     ar_o='$@'

  3822. fi

  3823. 

  3824. add_cflags $extra_cflags

  3825. add_cxxflags $extra_cxxflags

  3826. add_asflags $extra_cflags

  3827. 

  3828. if test -n "$sysroot"; then

  3829.     case "$cc_type" in

  3830.         gcc|llvm_gcc|clang)

  3831.             add_cppflags --sysroot="$sysroot"

  3832.             add_ldflags --sysroot="$sysroot"

  3833. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  3834.             add_cppflags -isysroot "$sysroot"

  3835.             add_ldflags -isysroot "$sysroot"

  3836.         ;;

  3837.         tms470)

  3838.             add_cppflags -I"$sysinclude"

  3839.             add_ldflags  --sysroot="$sysroot"

  3840.         ;;

  3841.     esac

  3842. fi

  3843. 

  3844. if test "$cpu" = host; then

  3845.     enabled cross_compile &&

  3846.         die "--cpu=host makes no sense when cross-compiling."

  3847. 

  3848.     case "$cc_type" in

  3849.         gcc|llvm_gcc)

  3850.             check_native(){

  3851.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  3852.                 sed -n "/cc1.*$1=/{

  3853.                             s/.*$1=\\([^ ]*\\).*/\\1/

  3854.                             p

  3855.                             q

  3856.                         }" $TMPE

  3857.             }

  3858.             cpu=$(check_native -march || check_native -mcpu)

  3859.         ;;

  3860.     esac

  3861. 

  3862.     test "${cpu:-host}" = host &&

  3863.         die "--cpu=host not supported with compiler $cc"

  3864. fi

  3865. 

  3866. # Deal with common $arch aliases

  3867. case "$arch" in

  3868.     aarch64|arm64)

  3869.         arch="aarch64"

  3870.     ;;

  3871.     arm*|iPad*|iPhone*)

  3872.         arch="arm"

  3873.     ;;

  3874.     mips*|IP*)

  3875.         arch="mips"

  3876.     ;;

  3877.     parisc*|hppa*)

  3878.         arch="parisc"

  3879.     ;;

  3880.     "Power Macintosh"|ppc*|powerpc*)

  3881.         arch="ppc"

  3882.     ;;

  3883.     s390|s390x)

  3884.         arch="s390"

  3885.     ;;

  3886.     sh4|sh)

  3887.         arch="sh4"

  3888.     ;;

  3889.     sun4u|sparc*)

  3890.         arch="sparc"

  3891.     ;;

  3892.     tilegx|tile-gx)

  3893.         arch="tilegx"

  3894.     ;;

  3895.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  3896.         arch="x86"

  3897.     ;;

  3898. esac

  3899. 

  3900. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  3901. enable $arch

  3902. 

  3903. # Add processor-specific flags

  3904. if enabled aarch64; then

  3905. 

  3906.     case $cpu in

  3907.         armv*)

  3908.             cpuflags="-march=$cpu"

  3909.         ;;

  3910.         *)

  3911.             cpuflags="-mcpu=$cpu"

  3912.         ;;

  3913.     esac

  3914. 

  3915. elif enabled alpha; then

  3916. 

  3917.     cpuflags="-mcpu=$cpu"

  3918. 

  3919. elif enabled arm; then

  3920. 

  3921.     check_arm_arch() {

  3922.         check_cpp_condition stddef.h \

  3923.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  3924.             $cpuflags

  3925.     }

  3926. 

  3927.     probe_arm_arch() {

  3928.         if   check_arm_arch 4;        then echo armv4;

  3929.         elif check_arm_arch 4T;       then echo armv4t;

  3930.         elif check_arm_arch 5;        then echo armv5;

  3931.         elif check_arm_arch 5E;       then echo armv5e;

  3932.         elif check_arm_arch 5T;       then echo armv5t;

  3933.         elif check_arm_arch 5TE;      then echo armv5te;

  3934.         elif check_arm_arch 5TEJ;     then echo armv5te;

  3935.         elif check_arm_arch 6;        then echo armv6;

  3936.         elif check_arm_arch 6J;       then echo armv6j;

  3937.         elif check_arm_arch 6K;       then echo armv6k;

  3938.         elif check_arm_arch 6Z;       then echo armv6z;

  3939.         elif check_arm_arch 6ZK;      then echo armv6zk;

  3940.         elif check_arm_arch 6T2;      then echo armv6t2;

  3941.         elif check_arm_arch 7;        then echo armv7;

  3942.         elif check_arm_arch 7A  7_A;  then echo armv7-a;

  3943.         elif check_arm_arch 7S;       then echo armv7-a;

  3944.         elif check_arm_arch 7R  7_R;  then echo armv7-r;

  3945.         elif check_arm_arch 7M  7_M;  then echo armv7-m;

  3946.         elif check_arm_arch 7EM 7E_M; then echo armv7-m;

  3947.         elif check_arm_arch 8A  8_A;  then echo armv8-a;

  3948.         fi

  3949.     }

  3950. 

  3951.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  3952. 

  3953.     case $cpu in

  3954.         armv*)

  3955.             cpuflags="-march=$cpu"

  3956.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  3957.         ;;

  3958.         *)

  3959.             cpuflags="-mcpu=$cpu"

  3960.             case $cpu in

  3961.                 cortex-a*)                               subarch=armv7a  ;;

  3962.                 cortex-r*)                               subarch=armv7r  ;;

  3963.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  3964.                 arm11*)                                  subarch=armv6   ;;

  3965.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  3966.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  3967.                 *)                             subarch=$(probe_arm_arch) ;;

  3968.             esac

  3969.         ;;

  3970.     esac

  3971. 

  3972.     case "$subarch" in

  3973.         armv5t*)    enable fast_clz                ;;

  3974.         armv[6-8]*)

  3975.             enable fast_clz

  3976.             disabled fast_unaligned || enable fast_unaligned

  3977.             ;;

  3978.     esac

  3979. 

  3980. elif enabled avr32; then

  3981. 

  3982.     case $cpu in

  3983.         ap7[02]0[0-2])

  3984.             subarch="avr32_ap"

  3985.             cpuflags="-mpart=$cpu"

  3986.         ;;

  3987.         ap)

  3988.             subarch="avr32_ap"

  3989.             cpuflags="-march=$cpu"

  3990.         ;;

  3991.         uc3[ab]*)

  3992.             subarch="avr32_uc"

  3993.             cpuflags="-mcpu=$cpu"

  3994.         ;;

  3995.         uc)

  3996.             subarch="avr32_uc"

  3997.             cpuflags="-march=$cpu"

  3998.         ;;

  3999.     esac

  4000. 

  4001. elif enabled bfin; then

  4002. 

  4003.     cpuflags="-mcpu=$cpu"

  4004. 

  4005. elif enabled mips; then

  4006. 

  4007.     cpuflags="-march=$cpu"

  4008. 

  4009.     case $cpu in

  4010.         24kc)

  4011.             disable mips32r5

  4012.             disable mips64r6

  4013.             disable mipsfpu

  4014.             disable mipsdspr1

  4015.             disable mipsdspr2

  4016.             disable msa

  4017.         ;;

  4018.         24kf*)

  4019.             disable mips32r5

  4020.             disable mips64r6

  4021.             disable mipsdspr1

  4022.             disable mipsdspr2

  4023.             disable msa

  4024.         ;;

  4025.         24kec|34kc|1004kc)

  4026.             disable mips32r5

  4027.             disable mips64r6

  4028.             disable mipsfpu

  4029.             disable mipsdspr2

  4030.             disable msa

  4031.         ;;

  4032.         24kef*|34kf*|1004kf*)

  4033.             disable mips32r5

  4034.             disable mips64r6

  4035.             disable mipsdspr2

  4036.             disable msa

  4037.         ;;

  4038.         74kc)

  4039.             disable mips32r5

  4040.             disable mips64r6

  4041.             disable mipsfpu

  4042.             disable msa

  4043.         ;;

  4044.         74kf)

  4045.             disable mips32r5

  4046.             disable mips64r6

  4047.             disable msa

  4048.         ;;

  4049.         p5600)

  4050.             disable mips64r6

  4051.             disable mipsdspr1

  4052.             disable mipsdspr2

  4053. 

  4054.             check_cflags "-mtune=p5600"

  4055.         ;;

  4056.         i6400)

  4057.             disable mips32r5

  4058.             disable mipsdspr1

  4059.             disable mipsdspr2

  4060.             disable mipsfpu

  4061. 

  4062.             check_cflags "-mtune=i6400 -mabi=64"

  4063.             check_ldflags "-mabi=64"

  4064.         ;;

  4065.         loongson*)

  4066.             disable mipsfpu

  4067.             disable mips32r2

  4068.             disable mips32r5

  4069.             disable mips64r6

  4070.             disable mipsdspr1

  4071.             disable mipsdspr2

  4072.             disable msa

  4073.             enable local_aligned_8 local_aligned_16 local_aligned_32

  4074.             enable simd_align_16

  4075.             enable fast_64bit

  4076.             enable fast_clz

  4077.             enable fast_cmov

  4078.             enable fast_unaligned

  4079.             disable aligned_stack

  4080.             case $cpu in

  4081.                 loongson3*)

  4082.                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4083.                 ;;

  4084.                 loongson2e)

  4085.                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4086.                 ;;

  4087.                 loongson2f)

  4088.                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4089.                 ;;

  4090.             esac

  4091.         ;;

  4092.         generic)

  4093.             disable mips32r5

  4094.             disable mips64r6

  4095.             disable msa

  4096.         ;;

  4097.     esac

  4098. 

  4099. elif enabled ppc; then

  4100. 

  4101.     disable ldbrx

  4102. 

  4103.     case $(tolower $cpu) in

  4104.         601|ppc601|powerpc601)

  4105.             cpuflags="-mcpu=601"

  4106.             disable altivec

  4107.         ;;

  4108.         603*|ppc603*|powerpc603*)

  4109.             cpuflags="-mcpu=603"

  4110.             disable altivec

  4111.         ;;

  4112.         604*|ppc604*|powerpc604*)

  4113.             cpuflags="-mcpu=604"

  4114.             disable altivec

  4115.         ;;

  4116.         g3|75*|ppc75*|powerpc75*)

  4117.             cpuflags="-mcpu=750"

  4118.             disable altivec

  4119.         ;;

  4120.         g4|745*|ppc745*|powerpc745*)

  4121.             cpuflags="-mcpu=7450"

  4122.             disable vsx

  4123.         ;;

  4124.         74*|ppc74*|powerpc74*)

  4125.             cpuflags="-mcpu=7400"

  4126.             disable vsx

  4127.         ;;

  4128.         g5|970|ppc970|powerpc970)

  4129.             cpuflags="-mcpu=970"

  4130.             disable vsx

  4131.         ;;

  4132.         power[3-6]*)

  4133.             cpuflags="-mcpu=$cpu"

  4134.             disable vsx

  4135.         ;;

  4136.         power[7-8]*)

  4137.             cpuflags="-mcpu=$cpu"

  4138.         ;;

  4139.         cell)

  4140.             cpuflags="-mcpu=cell"

  4141.             enable ldbrx

  4142.             disable vsx

  4143.         ;;

  4144.         e500mc)

  4145.             cpuflags="-mcpu=e500mc"

  4146.             disable altivec

  4147.         ;;

  4148.         e500v2)

  4149.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4150.             disable altivec

  4151.             disable dcbzl

  4152.         ;;

  4153.         e500)

  4154.             cpuflags="-mcpu=8540 -mhard-float"

  4155.             disable altivec

  4156.             disable dcbzl

  4157.         ;;

  4158.     esac

  4159. 

  4160. elif enabled sparc; then

  4161. 

  4162.     case $cpu in

  4163.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4164.             cpuflags="-mcpu=$cpu"

  4165.         ;;

  4166.         ultrasparc*|niagara[234])

  4167.             cpuflags="-mcpu=$cpu"

  4168.         ;;

  4169.     esac

  4170. 

  4171. elif enabled x86; then

  4172. 

  4173.     case $cpu in

  4174.         i[345]86|pentium)

  4175.             cpuflags="-march=$cpu"

  4176.             disable i686

  4177.             disable mmx

  4178.         ;;

  4179.         # targets that do NOT support nopl and conditional mov (cmov)

  4180.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4181.             cpuflags="-march=$cpu"

  4182.             disable i686

  4183.         ;;

  4184.         # targets that do support nopl and conditional mov (cmov)

  4185.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4186.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)

  4187.             cpuflags="-march=$cpu"

  4188.             enable i686

  4189.             enable fast_cmov

  4190.         ;;

  4191.         # targets that do support conditional mov but on which it's slow

  4192.         pentium4|pentium4m|prescott|nocona)

  4193.             cpuflags="-march=$cpu"

  4194.             enable i686

  4195.             disable fast_cmov

  4196.         ;;

  4197.     esac

  4198. 

  4199. fi

  4200. 

  4201. if [ "$cpu" != generic ]; then

  4202.     add_cflags  $cpuflags

  4203.     add_asflags $cpuflags

  4204.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4205. fi

  4206. 

  4207. # compiler sanity check

  4208. check_exec <<EOF

  4209. int main(void){ return 0; }

  4210. EOF

  4211. if test "$?" != 0; then

  4212.     echo "$cc is unable to create an executable file."

  4213.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4214.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4215.         echo "Only do this if you know what cross compiling means."

  4216.     fi

  4217.     die "C compiler test failed."

  4218. fi

  4219. 

  4220. add_cppflags -D_ISOC99_SOURCE

  4221. add_cxxflags -D__STDC_CONSTANT_MACROS

  4222. check_cflags -std=c99

  4223. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4224. #include <stdlib.h>

  4225. EOF

  4226. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4227. #include <stdlib.h>

  4228. EOF

  4229. 

  4230. add_host_cppflags -D_ISOC99_SOURCE

  4231. check_host_cflags -std=c99

  4232. check_host_cflags -Wall

  4233. check_host_cflags -O3

  4234. 

  4235. check_64bit(){

  4236.     arch32=$1

  4237.     arch64=$2

  4238.     expr=$3

  4239.     check_code cc "" "int test[2*($expr) - 1]" &&

  4240.         subarch=$arch64 || subarch=$arch32

  4241. }

  4242. 

  4243. case "$arch" in

  4244.     aarch64|alpha|ia64)

  4245.         spic=$shared

  4246.     ;;

  4247.     mips)

  4248.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4249.         spic=$shared

  4250.     ;;

  4251.     parisc)

  4252.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4253.         spic=$shared

  4254.     ;;

  4255.     ppc)

  4256.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4257.         spic=$shared

  4258.     ;;

  4259.     s390)

  4260.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4261.         spic=$shared

  4262.     ;;

  4263.     sparc)

  4264.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4265.         spic=$shared

  4266.     ;;

  4267.     x86)

  4268.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4269.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4270.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4271.             subarch=x86_64

  4272.         if test "$subarch" = "x86_64"; then

  4273.             spic=$shared

  4274.         fi

  4275.     ;;

  4276.     ppc)

  4277.         check_cc <<EOF && subarch="ppc64"

  4278.         int test[(int)sizeof(char*) - 7];

  4279. EOF

  4280.     ;;

  4281. esac

  4282. 

  4283. enable $subarch

  4284. enabled spic && enable_weak pic

  4285. 

  4286. # OS specific

  4287. case $target_os in

  4288.     aix)

  4289.         SHFLAGS=-shared

  4290.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4291.         enabled shared && add_ldflags -Wl,-brtl

  4292.         ;;

  4293.     android)

  4294.         disable symver

  4295.         enable section_data_rel_ro

  4296.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4297.         SLIB_INSTALL_LINKS=

  4298.         # soname not set on purpose

  4299.         SHFLAGS=-shared

  4300.         ;;

  4301.     haiku)

  4302.         prefix_default="/boot/common"

  4303.         network_extralibs="-lnetwork"

  4304.         host_libs=

  4305.         ;;

  4306.     sunos)

  4307.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4308.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4309.         network_extralibs="-lsocket -lnsl"

  4310.         add_cppflags -D__EXTENSIONS__

  4311.         # When using suncc to build, the Solaris linker will mark

  4312.         # an executable with each instruction set encountered by

  4313.         # the Solaris assembler.  As our libraries contain their own

  4314.         # guards for processor-specific code, instead suppress

  4315.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4316.         enabled_all suncc x86 &&

  4317.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4318.             add_ldflags -Wl,-M,mapfile

  4319.         nm_default='nm -P -g'

  4320.         ;;

  4321.     netbsd)

  4322.         disable symver

  4323.         oss_indev_extralibs="-lossaudio"

  4324.         oss_outdev_extralibs="-lossaudio"

  4325.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4326.         ;;

  4327.     openbsd|bitrig)

  4328.         disable symver

  4329.         SHFLAGS='-shared'

  4330.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4331.         SLIB_INSTALL_LINKS=

  4332.         oss_indev_extralibs="-lossaudio"

  4333.         oss_outdev_extralibs="-lossaudio"

  4334.         ;;

  4335.     dragonfly)

  4336.         disable symver

  4337.         ;;

  4338.     freebsd)

  4339.         ;;

  4340.     bsd/os)

  4341.         add_extralibs -lpoll -lgnugetopt

  4342.         strip="strip -d"

  4343.         ;;

  4344.     darwin)

  4345.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4346.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4347.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4348.         strip="${strip} -x"

  4349.         add_ldflags -Wl,-dynamic,-search_paths_first

  4350.         SLIBSUF=".dylib"

  4351.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4352.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4353.         objformat="macho"

  4354.         enabled x86_64 && objformat="macho64"

  4355.         enabled_any pic shared x86_64 ||

  4356.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4357.         ;;

  4358.     mingw32*|mingw64*)

  4359.         if test $target_os = "mingw32ce"; then

  4360.             disable network

  4361.         else

  4362.             target_os=mingw32

  4363.         fi

  4364.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4365.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4366.         LIBTARGET=i386

  4367.         if enabled x86_64; then

  4368.             LIBTARGET="i386:x86-64"

  4369.         elif enabled arm; then

  4370.             LIBTARGET=arm-wince

  4371.         fi

  4372.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4373.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4374.         shlibdir_default="$bindir_default"

  4375.         SLIBPREF=""

  4376.         SLIBSUF=".dll"

  4377.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4378.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4379.         dlltool="${cross_prefix}dlltool"

  4380.         if check_cmd lib.exe -list; then

  4381.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4382.             if enabled x86_64; then

  4383.                 LIBTARGET=x64

  4384.             fi

  4385.         elif check_cmd $dlltool --version; then

  4386.             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)'

  4387.         fi

  4388.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4389.         SLIB_INSTALL_LINKS=

  4390.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4391.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4392.         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'

  4393.         objformat="win32"

  4394.         ranlib=:

  4395.         enable dos_paths

  4396.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4397.         # Lets work around some stupidity in binutils.

  4398.         # ld will strip relocations from executables even though we need them

  4399.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4400.         # however ld then forgets what the entry point should be (oops) so we

  4401.         # have to manually (re)set it.

  4402.         if enabled x86_32; then

  4403.             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4404.         elif enabled x86_64; then

  4405.             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4406.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4407.             # Set image base >4GB for extra entropy with HEASLR

  4408.             add_ldexeflags -Wl,--image-base,0x140000000

  4409.             append SHFLAGS -Wl,--image-base,0x180000000

  4410.         fi

  4411.         ;;

  4412.     win32|win64)

  4413.         disable symver

  4414.         if enabled shared; then

  4415.             # Link to the import library instead of the normal static library

  4416.             # for shared libs.

  4417.             LD_LIB='%.lib'

  4418.             # Cannot build both shared and static libs with MSVC or icl.

  4419.             disable static

  4420.         fi

  4421.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4422.         shlibdir_default="$bindir_default"

  4423.         SLIBPREF=""

  4424.         SLIBSUF=".dll"

  4425.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4426.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4427.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4428.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4429.         SLIB_INSTALL_LINKS=

  4430.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4431.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4432.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4433.         objformat="win32"

  4434.         ranlib=:

  4435.         enable dos_paths

  4436.         ;;

  4437.     cygwin*)

  4438.         target_os=cygwin

  4439.         shlibdir_default="$bindir_default"

  4440.         SLIBPREF="cyg"

  4441.         SLIBSUF=".dll"

  4442.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4443.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4444.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4445.         SLIB_INSTALL_LINKS=

  4446.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4447.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4448.         objformat="win32"

  4449.         enable dos_paths

  4450.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4451.         ;;

  4452.     *-dos|freedos|opendos)

  4453.         network_extralibs="-lsocket"

  4454.         objformat="coff"

  4455.         enable dos_paths

  4456.         add_cppflags -U__STRICT_ANSI__

  4457.         ;;

  4458.     linux)

  4459.         enable dv1394

  4460.         enable section_data_rel_ro

  4461.         ;;

  4462.     irix*)

  4463.         target_os=irix

  4464.         ranlib="echo ignoring ranlib"

  4465.         ;;

  4466.     os/2*)

  4467.         strip="lxlite -CS"

  4468.         ln_s="cp -f"

  4469.         objformat="aout"

  4470.         add_cppflags -D_GNU_SOURCE

  4471.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4472.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4473.         LIBSUF="_s.a"

  4474.         SLIBPREF=""

  4475.         SLIBSUF=".dll"

  4476.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'

  4477.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4478.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \

  4479.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \

  4480.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \

  4481.             echo EXPORTS >> $(SUBDIR)$(NAME).def; \

  4482.             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'

  4483.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \

  4484.             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'

  4485.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'

  4486.         enable dos_paths

  4487.         enable_weak os2threads

  4488.         ;;

  4489.     gnu/kfreebsd)

  4490.         add_cppflags -D_BSD_SOURCE

  4491.         ;;

  4492.     gnu)

  4493.         ;;

  4494.     qnx)

  4495.         add_cppflags -D_QNX_SOURCE

  4496.         network_extralibs="-lsocket"

  4497.         ;;

  4498.     symbian)

  4499.         SLIBSUF=".dll"

  4500.         enable dos_paths

  4501.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4502.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4503.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4504.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4505.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4506.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4507.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4508.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4509.         ;;

  4510.     osf1)

  4511.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4512.         ;;

  4513.     minix)

  4514.         ;;

  4515.     plan9)

  4516.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4517.                      -D_REENTRANT_SOURCE        \

  4518.                      -D_RESEARCH_SOURCE         \

  4519.                      -DFD_SETSIZE=96            \

  4520.                      -DHAVE_SOCK_OPTS

  4521.         add_compat strtod.o strtod=avpriv_strtod

  4522.         network_extralibs='-lbsd'

  4523.         exeobjs=compat/plan9/main.o

  4524.         disable ffserver

  4525.         cp_f='cp'

  4526.         ;;

  4527.     none)

  4528.         ;;

  4529.     *)

  4530.         die "Unknown OS '$target_os'."

  4531.         ;;

  4532. esac

  4533. 

  4534. # determine libc flavour

  4535. 

  4536. probe_libc(){

  4537.     pfx=$1

  4538.     pfx_no_=${pfx%_}

  4539.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4540.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4541.         eval ${pfx}libc_type=uclibc

  4542.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4543.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4544.         eval ${pfx}libc_type=glibc

  4545.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4546.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4547.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4548.         eval ${pfx}libc_type=newlib

  4549.         add_${pfx}cppflags -U__STRICT_ANSI__

  4550.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4551.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4552.         eval ${pfx}libc_type=mingw64

  4553.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4554.             add_compat msvcrt/snprintf.o

  4555.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4556.         fi

  4557.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4558.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4559.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4560.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4561.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4562.         eval ${pfx}libc_type=mingw32

  4563.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4564.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4565.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4566.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4567.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4568.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4569.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4570.         eval ${pfx}libc_type=msvcrt

  4571.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4572.             if [ "$pfx" = host_ ]; then

  4573.                 add_host_cppflags -Dsnprintf=_snprintf

  4574.             else

  4575.                 add_compat strtod.o strtod=avpriv_strtod

  4576.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4577.                                              _snprintf=avpriv_snprintf  \

  4578.                                              vsnprintf=avpriv_vsnprintf

  4579.             fi

  4580.         fi

  4581.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4582.         # 0x601 by default unless something else is set by the user.

  4583.         # This can easily lead to us detecting functions only present

  4584.         # in such new versions and producing binaries requiring windows 7.0.

  4585.         # Therefore explicitly set the default to XP unless the user has

  4586.         # set something else on the command line.

  4587.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4588.         # family. For these cases, configure is free to use any functions

  4589.         # found in the SDK headers by default. (Alternatively, we could force

  4590.         # _WIN32_WINNT to 0x0602 in that case.)

  4591.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4592.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4593. #ifdef WINAPI_FAMILY

  4594. #include <winapifamily.h>

  4595. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4596. #error not desktop

  4597. #endif

  4598. #endif

  4599. EOF

  4600.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4601.         eval ${pfx}libc_type=klibc

  4602.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4603.         eval ${pfx}libc_type=bionic

  4604.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4605.         eval ${pfx}libc_type=solaris

  4606.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4607.     fi

  4608.     check_${pfx}cc <<EOF

  4609. #include <time.h>

  4610. void *v = localtime_r;

  4611. EOF

  4612. 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

  4613. #include <time.h>

  4614. void *v = localtime_r;

  4615. EOF

  4616. 

  4617. }

  4618. 

  4619. probe_libc

  4620. test -n "$libc_type" && enable libc_$libc_type

  4621. probe_libc host_

  4622. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  4623. 

  4624. case $libc_type in

  4625.     bionic)

  4626.         add_compat strtod.o strtod=avpriv_strtod

  4627.         ;;

  4628. esac

  4629. 

  4630. # hacks for compiler/libc/os combinations

  4631. 

  4632. if enabled_all tms470 libc_glibc; then

  4633.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  4634.     add_cppflags -D__USER_LABEL_PREFIX__=

  4635.     add_cppflags -D__builtin_memset=memset

  4636.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  4637.     add_cflags   -pds=48    # incompatible redefinition of macro

  4638. fi

  4639. 

  4640. if enabled_all ccc libc_glibc; then

  4641.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  4642. fi

  4643. 

  4644. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  4645.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  4646. 

  4647. esc(){

  4648.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  4649. }

  4650. 

  4651. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  4652. 

  4653. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  4654. 

  4655. set_default libdir

  4656. : ${shlibdir_default:="$libdir"}

  4657. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  4658. 

  4659. set_default $PATHS_LIST

  4660. set_default nm

  4661. 

  4662. # we need to build at least one lib type

  4663. if ! enabled_any static shared; then

  4664.     cat <<EOF

  4665. At least one library type must be built.

  4666. Specify --enable-static to build the static libraries or --enable-shared to

  4667. build the shared libraries as well. To only build the shared libraries specify

  4668. --disable-static in addition to --enable-shared.

  4669. EOF

  4670.     exit 1;

  4671. fi

  4672. 

  4673. die_license_disabled() {

  4674.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  4675. }

  4676. 

  4677. die_license_disabled_gpl() {

  4678.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  4679. }

  4680. 

  4681. die_license_disabled gpl frei0r

  4682. die_license_disabled gpl libcdio

  4683. die_license_disabled gpl librubberband

  4684. die_license_disabled gpl libsmbclient

  4685. die_license_disabled gpl libutvideo

  4686. die_license_disabled gpl libvidstab

  4687. die_license_disabled gpl libx264

  4688. die_license_disabled gpl libx265

  4689. die_license_disabled gpl libxavs

  4690. die_license_disabled gpl libxvid

  4691. die_license_disabled gpl libzvbi

  4692. die_license_disabled gpl x11grab

  4693. 

  4694. die_license_disabled nonfree libaacplus

  4695. die_license_disabled nonfree libfaac

  4696. die_license_disabled nonfree nvenc

  4697. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  4698. enabled gpl && die_license_disabled_gpl nonfree openssl

  4699. 

  4700. die_license_disabled version3 libopencore_amrnb

  4701. die_license_disabled version3 libopencore_amrwb

  4702. die_license_disabled version3 libsmbclient

  4703. die_license_disabled version3 libvo_aacenc

  4704. die_license_disabled version3 libvo_amrwbenc

  4705. 

  4706. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  4707. 

  4708. disabled optimizations || check_cflags -fomit-frame-pointer

  4709. 

  4710. enable_weak_pic() {

  4711.     disabled pic && return

  4712.     enable pic

  4713.     add_cppflags -DPIC

  4714.     case "$target_os" in

  4715.     mingw*|cygwin*)

  4716.         ;;

  4717.     *)

  4718.         add_cflags -fPIC

  4719.         ;;

  4720.     esac

  4721.     add_asflags  -fPIC

  4722. }

  4723. 

  4724. enabled pic && enable_weak_pic

  4725. 

  4726. check_cc <<EOF || die "Symbol mangling check failed."

  4727. int ff_extern;

  4728. EOF

  4729. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  4730. extern_prefix=${sym%%ff_extern*}

  4731. 

  4732. check_cc <<EOF && enable_weak inline_asm

  4733. void foo(void) { __asm__ volatile ("" ::); }

  4734. EOF

  4735. 

  4736. _restrict=

  4737. for restrict_keyword in restrict __restrict__ __restrict; do

  4738.     check_cc <<EOF && _restrict=$restrict_keyword && break

  4739. void foo(char * $restrict_keyword p);

  4740. EOF

  4741. done

  4742. 

  4743. check_cc <<EOF && enable pragma_deprecated

  4744. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  4745. EOF

  4746. 

  4747. check_cc <<EOF && enable attribute_packed

  4748. struct { int x; } __attribute__((packed)) x;

  4749. EOF

  4750. 

  4751. check_cc <<EOF && enable attribute_may_alias

  4752. union { int x; } __attribute__((may_alias)) x;

  4753. EOF

  4754. 

  4755. check_cc <<EOF || die "endian test failed"

  4756. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  4757. EOF

  4758. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  4759. 

  4760. if ! enabled ppc64 || enabled bigendian; then

  4761.     disable vsx

  4762. fi

  4763. 

  4764. check_gas() {

  4765.     log "check_gas using '$as' as AS"

  4766.     # :vararg is used on aarch64, arm and ppc altivec

  4767.     check_as <<EOF || return 1

  4768. .macro m n, y:vararg=0

  4769. \n: .int \y

  4770. .endm

  4771. m x

  4772. EOF

  4773.     # .altmacro is only used in arm asm

  4774.     ! enabled arm || check_as <<EOF || return 1

  4775. .altmacro

  4776. EOF

  4777.     enable gnu_as

  4778.     return 0

  4779. }

  4780. 

  4781. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  4782.     nogas=:

  4783.     enabled_any arm aarch64 && nogas=die

  4784.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  4785.     as_noop=-v

  4786. 

  4787.     case $as_type in

  4788.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  4789.         gcc)  gaspp_as_type=gas ;;

  4790.         *)    gaspp_as_type=$as_type ;;

  4791.     esac

  4792. 

  4793.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  4794. 

  4795.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  4796.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  4797.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  4798. 

  4799.     if ! check_gas ; then

  4800.         as=${gas:=$as}

  4801.         check_gas || \

  4802.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  4803.     fi

  4804. 

  4805.     check_as <<EOF && enable as_func

  4806. .func test

  4807. .endfunc

  4808. EOF

  4809. fi

  4810. 

  4811. check_inline_asm inline_asm_labels '"1:\n"'

  4812. 

  4813. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  4814. 

  4815. if enabled aarch64; then

  4816.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  4817.     # internal assembler in clang 3.3 does not support this instruction

  4818.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  4819.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  4820. 

  4821.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  4822. 

  4823. elif enabled alpha; then

  4824. 

  4825.     check_cflags -mieee

  4826. 

  4827. elif enabled arm; then

  4828. 

  4829.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  4830. 

  4831.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  4832. float func(float a, float b){ return a+b; }

  4833. EOF

  4834. 

  4835.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  4836. 

  4837.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  4838.         enable vfp_args

  4839.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  4840.         enable vfp_args

  4841.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  4842.         case "${cross_prefix:-$cc}" in

  4843.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  4844.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  4845. __asm__ (".eabi_attribute 28, 1");

  4846. int main(void) { return 0; }

  4847. EOF

  4848.         esac

  4849.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  4850.     fi

  4851. 

  4852.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  4853.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  4854.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  4855.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  4856.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  4857.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  4858.     enabled setend  && check_insn setend  'setend be'

  4859. 

  4860.     [ $target_os = linux ] || [ $target_os = android ] ||

  4861.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  4862.             $ARCH_EXT_LIST_ARM

  4863. 

  4864.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  4865. 

  4866.     check_as <<EOF && enable as_dn_directive

  4867. ra .dn d0.i16

  4868. .unreq ra

  4869. EOF

  4870. 

  4871.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  4872.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  4873. .object_arch armv4

  4874. EOF

  4875. 

  4876.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  4877. 

  4878. elif enabled mips; then

  4879. 

  4880.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  4881.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  4882.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  4883. 

  4884.     # Enable minimum ISA based on selected options

  4885.     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then

  4886.         add_cflags "-mips64r2"

  4887.         add_asflags "-mips64r2"

  4888.     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then

  4889.         add_cflags "-mips64"

  4890.         add_asflags "-mips64"

  4891.     elif enabled mipsdspr1 || enabled mipsdspr2; then

  4892.         add_cflags "-mips32r2 -mfp32"

  4893.         add_asflags "-mips32r2 -mfp32"

  4894.     elif enabled mips32r5 || enabled mips64r6; then

  4895.         check_cflags "-mfp64"

  4896.         check_ldflags "-mfp64"

  4897.     fi

  4898. 

  4899.     enabled mips32r5  && check_cflags "-mips32r5 -msched-weight -mload-store-pairs -funroll-loops" &&

  4900.      check_ldflags "-mips32r5" &&

  4901.      check_inline_asm mips32r5  '"ulw $t0, ($t1)"'

  4902.     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&

  4903.      check_ldflags "-mips64r6" &&

  4904.      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'

  4905.     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&

  4906.      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'

  4907.     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&

  4908.      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'

  4909.     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&

  4910.      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'

  4911.     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&

  4912.      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'

  4913. 

  4914.     enabled mips32r5 && add_asflags "-mips32r5 -mfp64"

  4915.     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"

  4916.     enabled msa && add_asflags "-mmsa"

  4917. 

  4918. elif enabled parisc; then

  4919. 

  4920.     if enabled gcc; then

  4921.         case $($cc -dumpversion) in

  4922.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  4923.         esac

  4924.     fi

  4925. 

  4926. elif enabled ppc; then

  4927. 

  4928.     enable local_aligned_8 local_aligned_16 local_aligned_32

  4929. 

  4930.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  4931.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  4932.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  4933.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  4934. 

  4935.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  4936.     if enabled altivec; then

  4937.         check_cflags -maltivec -mabi=altivec &&

  4938.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  4939.         check_cflags -faltivec

  4940. 

  4941.         # check if our compiler supports Motorola AltiVec C API

  4942.         check_cc <<EOF || disable altivec

  4943. $inc_altivec_h

  4944. int main(void) {

  4945.     vector signed int v1 = (vector signed int) { 0 };

  4946.     vector signed int v2 = (vector signed int) { 1 };

  4947.     v1 = vec_add(v1, v2);

  4948.     return 0;

  4949. }

  4950. EOF

  4951. 

  4952.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  4953.     fi

  4954. 

  4955.     if enabled vsx; then

  4956.         check_cflags -mvsx &&

  4957.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  4958.     fi

  4959. 

  4960.     if enabled power8; then

  4961.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  4962.     fi

  4963. 

  4964. elif enabled x86; then

  4965. 

  4966.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  4967.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  4968. 

  4969.     enable local_aligned_8 local_aligned_16 local_aligned_32

  4970. 

  4971.     # check whether EBP is available on x86

  4972.     # As 'i' is stored on the stack, this program will crash

  4973.     # if the base pointer is used to access it because the

  4974.     # base pointer is cleared in the inline assembly code.

  4975.     check_exec_crash <<EOF && enable ebp_available

  4976. volatile int i=0;

  4977. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  4978. return i;

  4979. EOF

  4980. 

  4981.     # check whether EBX is available on x86

  4982.     check_inline_asm ebx_available '""::"b"(0)' &&

  4983.         check_inline_asm ebx_available '"":::"%ebx"'

  4984. 

  4985.     # check whether xmm clobbers are supported

  4986.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  4987. 

  4988.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  4989.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  4990. 

  4991.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  4992.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  4993.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  4994. 

  4995.     if ! disabled_any asm mmx yasm; then

  4996.         if check_cmd $yasmexe --version; then

  4997.             enabled x86_64 && yasm_extra="-m amd64"

  4998.             yasm_debug="-g dwarf2"

  4999.         elif check_cmd nasm -v; then

  5000.             yasmexe=nasm

  5001.             yasm_debug="-g -F dwarf"

  5002.             if enabled x86_64; then

  5003.                 case "$objformat" in

  5004.                     elf)   objformat=elf64 ;;

  5005.                     win32) objformat=win64 ;;

  5006.                 esac

  5007.             fi

  5008.         fi

  5009. 

  5010.         YASMFLAGS="-f $objformat $yasm_extra"

  5011.         enabled pic               && append YASMFLAGS "-DPIC"

  5012.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5013.         case "$objformat" in

  5014.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5015.         esac

  5016. 

  5017.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5018.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5019.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5020.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5021.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5022.         check_yasm "CPU amdnop" || disable cpunop

  5023.     fi

  5024. 

  5025.     case "$cpu" in

  5026.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5027.             disable fast_clz

  5028.         ;;

  5029.     esac

  5030. 

  5031. fi

  5032. 

  5033. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5034. 

  5035. check_ldflags -Wl,--as-needed

  5036. check_ldflags -Wl,-z,noexecstack

  5037. 

  5038. if check_func dlopen; then

  5039.     ldl=

  5040. elif check_func dlopen -ldl; then

  5041.     ldl=-ldl

  5042. fi

  5043. 

  5044. frei0r_filter_extralibs='$ldl'

  5045. frei0r_src_filter_extralibs='$ldl'

  5046. ladspa_filter_extralibs='$ldl'

  5047. nvenc_encoder_extralibs='$ldl'

  5048. 

  5049. if ! disabled network; then

  5050.     check_func getaddrinfo $network_extralibs

  5051.     check_func getservbyport $network_extralibs

  5052.     check_func inet_aton $network_extralibs

  5053. 

  5054.     check_type netdb.h "struct addrinfo"

  5055.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5056.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5057.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5058.     check_type poll.h "struct pollfd"

  5059.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5060.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5061.     check_type netinet/in.h "struct sockaddr_in6"

  5062.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5063.     check_type "sys/types.h sys/socket.h" socklen_t

  5064. 

  5065.     # Prefer arpa/inet.h over winsock2

  5066.     if check_header arpa/inet.h ; then

  5067.         check_func closesocket

  5068.     elif check_header winsock2.h ; then

  5069.         check_func_headers winsock2.h closesocket -lws2 &&

  5070.             network_extralibs="-lws2" ||

  5071.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5072.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5073.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5074. 

  5075.         check_type ws2tcpip.h socklen_t

  5076.         check_type ws2tcpip.h "struct addrinfo"

  5077.         check_type ws2tcpip.h "struct group_source_req"

  5078.         check_type ws2tcpip.h "struct ip_mreq_source"

  5079.         check_type ws2tcpip.h "struct ipv6_mreq"

  5080.         check_type winsock2.h "struct pollfd"

  5081.         check_struct winsock2.h "struct sockaddr" sa_len

  5082.         check_type ws2tcpip.h "struct sockaddr_in6"

  5083.         check_type ws2tcpip.h "struct sockaddr_storage"

  5084.     else

  5085.         disable network

  5086.     fi

  5087. fi

  5088. 

  5089. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5090. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5091. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5092. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5093. check_builtin sarestart signal.h "SA_RESTART"

  5094. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5095. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5096. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5097. 

  5098. case "$custom_allocator" in

  5099.     jemalloc)

  5100.         # jemalloc by default does not use a prefix

  5101.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5102.     ;;

  5103.     tcmalloc)

  5104.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5105.         malloc_prefix=tc_

  5106.     ;;

  5107. esac

  5108. 

  5109. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5110. check_func  ${malloc_prefix}memalign            && enable memalign

  5111. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5112. 

  5113. check_func  access

  5114. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5115. check_func  fcntl

  5116. check_func  fork

  5117. check_func  gethrtime

  5118. check_func  getopt

  5119. check_func  getrusage

  5120. check_func  gettimeofday

  5121. check_func  isatty

  5122. check_func  mach_absolute_time

  5123. check_func  mkstemp

  5124. check_func  mmap

  5125. check_func  mprotect

  5126. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5127. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5128. check_func  sched_getaffinity

  5129. check_func  setrlimit

  5130. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5131. check_func  strerror_r

  5132. check_func  sysconf

  5133. check_func  sysctl

  5134. check_func  usleep

  5135. 

  5136. check_func_headers conio.h kbhit

  5137. check_func_headers io.h setmode

  5138. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5139. check_func_headers stdlib.h getenv

  5140. check_func_headers sys/stat.h lstat

  5141. 

  5142. check_func_headers windows.h CoTaskMemFree -lole32

  5143. check_func_headers windows.h GetProcessAffinityMask

  5144. check_func_headers windows.h GetProcessTimes

  5145. check_func_headers windows.h GetSystemTimeAsFileTime

  5146. check_func_headers windows.h MapViewOfFile

  5147. check_func_headers windows.h PeekNamedPipe

  5148. check_func_headers windows.h SetConsoleTextAttribute

  5149. check_func_headers windows.h SetConsoleCtrlHandler

  5150. check_func_headers windows.h Sleep

  5151. check_func_headers windows.h VirtualAlloc

  5152. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5153. check_func_headers glob.h glob

  5154. enabled xlib &&

  5155.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5156. 

  5157. check_header CoreServices/CoreServices.h

  5158. check_header direct.h

  5159. check_header dirent.h

  5160. check_header dlfcn.h

  5161. check_header d3d11.h

  5162. check_header dxva.h

  5163. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5164. check_header io.h

  5165. check_header libcrystalhd/libcrystalhd_if.h

  5166. check_header mach/mach_time.h

  5167. check_header malloc.h

  5168. check_header net/udplite.h

  5169. check_header poll.h

  5170. check_header sys/mman.h

  5171. check_header sys/param.h

  5172. check_header sys/resource.h

  5173. check_header sys/select.h

  5174. check_header sys/time.h

  5175. check_header sys/un.h

  5176. check_header termios.h

  5177. check_header unistd.h

  5178. check_header valgrind/valgrind.h

  5179. check_header vdpau/vdpau.h

  5180. check_header vdpau/vdpau_x11.h

  5181. check_header VideoDecodeAcceleration/VDADecoder.h

  5182. check_header VideoToolbox/VideoToolbox.h

  5183. check_header windows.h

  5184. check_header X11/extensions/XvMClib.h

  5185. check_header asm/types.h

  5186. 

  5187. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5188. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5189. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5190. 

  5191. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5192. 

  5193. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5194. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5195. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5196. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5197. 

  5198. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5199. 

  5200. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5201. 

  5202. if ! disabled w32threads && ! enabled pthreads; then

  5203.     check_func_headers "windows.h process.h" _beginthreadex &&

  5204.         enable w32threads || disable w32threads

  5205. fi

  5206. 

  5207. # check for some common methods of building with pthread support

  5208. # do this before the optional library checks as some of them require pthreads

  5209. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5210.     enable pthreads

  5211.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5212.         add_cflags -pthread

  5213.         add_extralibs -pthread

  5214.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5215.         add_cflags -pthreads

  5216.         add_extralibs -pthreads

  5217.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5218.         add_cflags -ldl -pthread

  5219.         add_extralibs -ldl -pthread

  5220.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5221.         add_extralibs -lpthreadGC2

  5222.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5223.         :

  5224.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5225.         disable pthreads

  5226.     fi

  5227.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5228. fi

  5229. 

  5230. 

  5231. if enabled pthreads; then

  5232.   check_func pthread_cancel

  5233. fi

  5234. 

  5235. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5236. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5237. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5238. 

  5239. check_lib math.h sin -lm && LIBM="-lm"

  5240. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5241. 

  5242. atan2f_args=2

  5243. copysign_args=2

  5244. ldexpf_args=2

  5245. powf_args=2

  5246. 

  5247. for func in $MATH_FUNCS; do

  5248.     eval check_mathfunc $func \${${func}_args:-1}

  5249. done

  5250. 

  5251. # these are off by default, so fail if requested and not available

  5252. enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5253. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5254.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5255. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5256.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5257.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5258. enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }

  5259. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5260. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5261. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5262. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5263. enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus

  5264. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5265. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5266. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5267. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5268.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5269.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5270. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5271. enabled libdcadec         && require_pkg_config dcadec libdcadec/dca_context.h dcadec_context_create &&

  5272.                              check_struct libdcadec/dca_context.h "struct dcadec_exss_info" matrix_encoding

  5273. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5274. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5275.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5276.                                  warn "using libfdk without pkg-config"; } }

  5277. 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"

  5278. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5279. enabled fontconfig        && enable libfontconfig

  5280. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5281. enabled libfreetype       && require_libfreetype

  5282. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5283. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5284. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5285.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5286.                                done || die "ERROR: libgsm not found"; }

  5287. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5288. enabled libkvazaar        && require_pkg_config kvazaar kvazaar.h kvz_api_get

  5289. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5290. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5291. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5292. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5293. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5294. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5295. enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader

  5296. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5297. enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||

  5298.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5299.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5300.                                die "ERROR: libopenjpeg not found"; }

  5301. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5302. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5303. enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init

  5304. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5305. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5306. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5307. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5308. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5309.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5310. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5311. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5312. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5313. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5314. enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h

  5315.     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h

  5316.     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static

  5317. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5318. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5319. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5320.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5321.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5322. enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++

  5323. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5324. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5325. enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc

  5326. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5327. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5328. 

  5329. enabled libvpx            && {

  5330.     enabled libvpx_vp8_decoder && {

  5331.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5332.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5333.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5334.     }

  5335.     enabled libvpx_vp8_encoder && {

  5336.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5337.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5338.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5339.     }

  5340.     enabled libvpx_vp9_decoder && {

  5341.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5342.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5343.                 disable libvpx_vp9_decoder;

  5344.     }

  5345.     enabled libvpx_vp9_encoder && {

  5346.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5347.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5348.                 disable libvpx_vp9_encoder;

  5349.     }

  5350.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5351.         die "libvpx enabled but no supported decoders found"

  5352.     fi

  5353. }

  5354. 

  5355. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5356. enabled libwebp           && {

  5357.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5358.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5359. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5360.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5361.                                  warn "using libx264 without pkg-config"; } } &&

  5362.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5363.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5364.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5365.                                enable libx262; }

  5366. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5367.                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||

  5368.                                die "ERROR: libx265 version must be >= 57."; }

  5369. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5370. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5371. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5372. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi

  5373. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5374.                                 { ! enabled cross_compile && {

  5375.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5376.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5377.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5378.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5379.                                die "ERROR: mmal not found"; }

  5380. enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&

  5381.                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||

  5382.                                die "ERROR: NVENC API version 4 or older is not supported"; } &&

  5383.                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }

  5384. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5385.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5386.                                die "ERROR: openal not found"; } &&

  5387.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5388.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5389. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5390.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5391.                                die "ERROR: opencl not found"; } &&

  5392.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5393.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5394.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5395. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5396.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5397.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5398.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5399.                                die "ERROR: opengl not found."

  5400.                              }

  5401. enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5402.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5403.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5404.                                die "ERROR: openssl not found"; }

  5405. enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }

  5406. 

  5407. if enabled gnutls; then

  5408.     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||

  5409.     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }

  5410. fi

  5411. 

  5412. # libdc1394 check

  5413. if enabled libdc1394; then

  5414.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5415.         enable libdc1394_2; } ||

  5416.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5417.         enable libdc1394_1; } ||

  5418.     die "ERROR: No version of libdc1394 found "

  5419. fi

  5420. if ! disabled sdl; then

  5421.     SDL_CONFIG="${cross_prefix}sdl-config"

  5422.     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then

  5423.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5424.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5425.         enable sdl

  5426.     else

  5427.         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then

  5428.             sdl_cflags=$("${SDL_CONFIG}" --cflags)

  5429.             sdl_libs=$("${SDL_CONFIG}" --libs)

  5430.             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&

  5431.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5432.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5433.             enable sdl

  5434.         elif enabled sdl ; then

  5435.             die "ERROR: SDL not found"

  5436.         else

  5437.             disable sdl

  5438.         fi

  5439.     fi

  5440.     if test $target_os = "mingw32"; then

  5441.         sdl_libs="$sdl_libs -mconsole"

  5442.     fi

  5443. fi

  5444. enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs

  5445. 

  5446. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5447.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5448.     enable securetransport; }

  5449. 

  5450. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5451. enabled makeinfo \

  5452.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5453.     && enable makeinfo_html || disable makeinfo_html

  5454. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5455. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5456. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5457. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5458. 

  5459. check_header linux/fb.h

  5460. check_header linux/videodev.h

  5461. check_header linux/videodev2.h

  5462. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5463. 

  5464. check_header sys/videoio.h

  5465. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5466. 

  5467. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5468. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5469. # w32api 3.12 had it defined wrong

  5470. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5471. 

  5472. check_type "dshow.h" IBaseFilter

  5473. 

  5474. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5475. { check_header dev/bktr/ioctl_meteor.h &&

  5476.   check_header dev/bktr/ioctl_bt848.h; } ||

  5477. { check_header machine/ioctl_meteor.h &&

  5478.   check_header machine/ioctl_bt848.h; } ||

  5479. { check_header dev/video/meteor/ioctl_meteor.h &&

  5480.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5481. check_header dev/ic/bt8xx.h

  5482. 

  5483. check_header sndio.h

  5484. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5485.     enable_safe sys/soundcard.h

  5486. else

  5487.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5488.     #include <sys/soundcard.h>

  5489.     audio_buf_info abc;

  5490. EOF

  5491. fi

  5492. check_header soundcard.h

  5493. 

  5494. enabled_any alsa_indev alsa_outdev &&

  5495.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5496. 

  5497. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&

  5498.     check_func jack_port_get_latency_range -ljack

  5499. 

  5500. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5501. 

  5502. if enabled libcdio; then

  5503.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5504.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5505.     die "ERROR: No usable libcdio/cdparanoia found"

  5506. fi

  5507. 

  5508. enabled xlib &&

  5509.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5510. 

  5511. if ! disabled libxcb; then

  5512.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5513.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5514.     } && disable x11grab && enable libxcb

  5515. 

  5516. if enabled libxcb; then

  5517.     disabled libxcb_shm || {

  5518.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5519.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5520.         } && check_header sys/shm.h && enable libxcb_shm; }

  5521. 

  5522.     disabled libxcb_xfixes || {

  5523.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5524.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5525.         } && enable libxcb_xfixes; }

  5526. 

  5527.     disabled libxcb_shape || {

  5528.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5529.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5530.         } && enable libxcb_shape; }

  5531. 

  5532.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5533.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5534. fi

  5535. fi

  5536. 

  5537. if enabled x11grab; then

  5538.     enabled xlib || die "ERROR: Xlib not found"

  5539.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5540.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5541. fi

  5542. 

  5543. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5544. 

  5545. enabled dxva2api_h &&

  5546.     check_cc <<EOF && enable dxva2api_cobj

  5547. #define _WIN32_WINNT 0x0600

  5548. #define COBJMACROS

  5549. #include <windows.h>

  5550. #include <d3d9.h>

  5551. #include <dxva2api.h>

  5552. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5553. EOF

  5554. 

  5555. enabled vaapi &&

  5556.     check_lib va/va.h vaInitialize -lva ||

  5557.     disable vaapi

  5558. 

  5559. enabled vaapi && enabled xlib &&

  5560.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  5561.     enable vaapi_x11

  5562. 

  5563. enabled vdpau &&

  5564.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  5565.     disable vdpau

  5566. 

  5567. enabled vdpau && enabled xlib &&

  5568.     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  5569.     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&

  5570.     enable vdpau_x11

  5571. 

  5572. # Funny iconv installations are not unusual, so check it after all flags have been set

  5573. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  5574. 

  5575. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  5576. 

  5577. # add some useful compiler flags if supported

  5578. check_cflags -Wdeclaration-after-statement

  5579. check_cflags -Wall

  5580. check_cflags -Wdisabled-optimization

  5581. check_cflags -Wpointer-arith

  5582. check_cflags -Wredundant-decls

  5583. check_cflags -Wwrite-strings

  5584. check_cflags -Wtype-limits

  5585. check_cflags -Wundef

  5586. check_cflags -Wmissing-prototypes

  5587. check_cflags -Wno-pointer-to-int-cast

  5588. check_cflags -Wstrict-prototypes

  5589. check_cflags -Wempty-body

  5590. enabled extra_warnings && check_cflags -Winline

  5591. 

  5592. check_disable_warning(){

  5593.     warning_flag=-W${1#-Wno-}

  5594.     test_cflags $warning_flag && add_cflags $1

  5595. }

  5596. 

  5597. check_disable_warning -Wno-parentheses

  5598. check_disable_warning -Wno-switch

  5599. check_disable_warning -Wno-format-zero-length

  5600. check_disable_warning -Wno-pointer-sign

  5601. 

  5602. # add some linker flags

  5603. check_ldflags -Wl,--warn-common

  5604. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  5605. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  5606. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  5607. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  5608. 

  5609. # add some strip flags

  5610. # -wN '..@*' is more selective than -x, but not available everywhere.

  5611. check_stripflags -wN \'..@*\' || check_stripflags -x

  5612. 

  5613. enabled neon_clobber_test &&

  5614.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5615.                   -Wl,--wrap,avcodec_decode_audio4      \

  5616.                   -Wl,--wrap,avcodec_decode_video2      \

  5617.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5618.                   -Wl,--wrap,avcodec_encode_audio2      \

  5619.                   -Wl,--wrap,avcodec_encode_video2      \

  5620.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5621.                   -Wl,--wrap,swr_convert                \

  5622.                   -Wl,--wrap,avresample_convert ||

  5623.     disable neon_clobber_test

  5624. 

  5625. enabled xmm_clobber_test &&

  5626.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5627.                   -Wl,--wrap,avcodec_decode_audio4      \

  5628.                   -Wl,--wrap,avcodec_decode_video2      \

  5629.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5630.                   -Wl,--wrap,avcodec_encode_audio2      \

  5631.                   -Wl,--wrap,avcodec_encode_video2      \

  5632.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5633.                   -Wl,--wrap,swr_convert                \

  5634.                   -Wl,--wrap,avresample_convert         \

  5635.                   -Wl,--wrap,sws_scale ||

  5636.     disable xmm_clobber_test

  5637. 

  5638. echo "X{};" > $TMPV

  5639. if test_ldflags -Wl,--version-script,$TMPV; then

  5640.     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'

  5641.     check_cc <<EOF && enable symver_asm_label

  5642. void ff_foo(void) __asm__ ("av_foo@VERSION");

  5643. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  5644. EOF

  5645.     check_cc <<EOF && enable symver_gnu_asm

  5646. __asm__(".symver ff_foo,av_foo@VERSION");

  5647. void ff_foo(void) {}

  5648. EOF

  5649. fi

  5650. 

  5651. if [ -z "$optflags" ]; then

  5652.     if enabled small; then

  5653.         optflags=$cflags_size

  5654.     elif enabled optimizations; then

  5655.         optflags=$cflags_speed

  5656.     else

  5657.         optflags=$cflags_noopt

  5658.     fi

  5659. fi

  5660. 

  5661. check_optflags(){

  5662.     check_cflags "$@"

  5663.     enabled lto && check_ldflags "$@"

  5664. }

  5665. 

  5666. 

  5667. if enabled lto; then

  5668.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  5669.     check_cflags  -flto

  5670.     check_ldflags -flto $cpuflags

  5671.     disable inline_asm_direct_symbol_refs

  5672. fi

  5673. 

  5674. check_optflags $optflags

  5675. check_optflags -fno-math-errno

  5676. check_optflags -fno-signed-zeros

  5677. 

  5678. enabled ftrapv && check_cflags -ftrapv

  5679. 

  5680. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  5681. int x;

  5682. EOF

  5683. 

  5684. 

  5685. if enabled icc; then

  5686.     # Just warnings, no remarks

  5687.     check_cflags -w1

  5688.     # -wd: Disable following warnings

  5689.     # 144, 167, 556: -Wno-pointer-sign

  5690.     # 188: enumerated type mixed with another type

  5691.     # 1292: attribute "foo" ignored

  5692.     # 1419: external declaration in primary source file

  5693.     # 10006: ignoring unknown option -fno-signed-zeros

  5694.     # 10148: ignoring unknown option -Wno-parentheses

  5695.     # 10156: ignoring option '-W'; no argument required

  5696.     # 13200: No EMMS instruction before call to function

  5697.     # 13203: No EMMS instruction before return from function

  5698.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  5699.     # 11030: Warning unknown option --as-needed

  5700.     # 10156: ignoring option '-export'; no argument required

  5701.     check_ldflags -wd10156,11030

  5702.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  5703.     enable ebp_available

  5704.     # The test above does not test linking

  5705.     enabled lto && disable symver_asm_label

  5706.     if enabled x86_32; then

  5707.         icc_version=$($cc -dumpversion)

  5708.         test ${icc_version%%.*} -ge 11 &&

  5709.             check_cflags -falign-stack=maintain-16-byte ||

  5710.             disable aligned_stack

  5711.     fi

  5712. elif enabled ccc; then

  5713.     # disable some annoying warnings

  5714.     add_cflags -msg_disable bitnotint

  5715.     add_cflags -msg_disable mixfuncvoid

  5716.     add_cflags -msg_disable nonstandcast

  5717.     add_cflags -msg_disable unsupieee

  5718. elif enabled gcc; then

  5719.     check_optflags -fno-tree-vectorize

  5720.     check_cflags -Werror=format-security

  5721.     check_cflags -Werror=implicit-function-declaration

  5722.     check_cflags -Werror=missing-prototypes

  5723.     check_cflags -Werror=return-type

  5724.     check_cflags -Werror=vla

  5725.     check_cflags -Wformat

  5726.     check_cflags -fdiagnostics-color=auto

  5727.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  5728. elif enabled llvm_gcc; then

  5729.     check_cflags -mllvm -stack-alignment=16

  5730. elif enabled clang; then

  5731.     check_cflags -mllvm -stack-alignment=16

  5732.     check_cflags -Qunused-arguments

  5733.     check_cflags -Werror=implicit-function-declaration

  5734.     check_cflags -Werror=missing-prototypes

  5735.     check_cflags -Werror=return-type

  5736. elif enabled cparser; then

  5737.     add_cflags -Wno-missing-variable-declarations

  5738.     add_cflags -Wno-empty-statement

  5739. elif enabled armcc; then

  5740.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  5741.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  5742.     # 2523: use of inline assembly is deprecated

  5743.     add_cflags -W${armcc_opt},--diag_suppress=2523

  5744.     add_cflags -W${armcc_opt},--diag_suppress=1207

  5745.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  5746.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  5747.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  5748.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  5749. elif enabled tms470; then

  5750.     add_cflags -pds=824 -pds=837

  5751.     disable inline_asm

  5752. elif enabled pathscale; then

  5753.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  5754. elif enabled_any msvc icl; then

  5755.     enabled x86_32 && disable aligned_stack

  5756.     enabled_all x86_32 debug && add_cflags -Oy-

  5757.     enabled debug && add_ldflags -debug

  5758.     enable pragma_deprecated

  5759.     if enabled icl; then

  5760.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  5761.         # (correctly) on icl 13.x.

  5762.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  5763.             add_cflags -Qansi-alias

  5764.         # Some inline asm is not compilable in debug

  5765.         if enabled debug; then

  5766.             disable ebp_available

  5767.             disable ebx_available

  5768.         fi

  5769.     fi

  5770.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  5771.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  5772.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  5773.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  5774.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  5775.     # MSVC 2013 and newer can handle it fine.

  5776.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  5777.     # happens in config.h.

  5778.     if [ $_restrict != restrict ]; then

  5779.         check_cc <<EOF || add_cflags -FIstdlib.h

  5780. __declspec($_restrict) void* foo(int);

  5781. EOF

  5782.     fi

  5783.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5784. fi

  5785. 

  5786. for pfx in "" host_; do

  5787.     varname=${pfx%_}cc_type

  5788.     eval "type=\$$varname"

  5789.     if [ $type = "msvc" ]; then

  5790.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  5791. static inline int foo(int a) { return a; }

  5792. EOF

  5793.     fi

  5794. done

  5795. 

  5796. case $as_type in

  5797.     clang)

  5798.         add_asflags -Qunused-arguments

  5799.     ;;

  5800. esac

  5801. 

  5802. case $ld_type in

  5803.     clang)

  5804.         check_ldflags -Qunused-arguments

  5805.     ;;

  5806. esac

  5807. 

  5808. case $target_os in

  5809.     osf1)

  5810.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  5811.     ;;

  5812.     plan9)

  5813.         add_cppflags -Dmain=plan9_main

  5814.     ;;

  5815. esac

  5816. 

  5817. enable frame_thread_encoder

  5818. 

  5819. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  5820. 

  5821. check_deps $CONFIG_LIST       \

  5822.            $CONFIG_EXTRA      \

  5823.            $HAVE_LIST         \

  5824.            $ALL_COMPONENTS    \

  5825. 

  5826. 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"

  5827. 

  5828. 

  5829. if test $target_os = "haiku"; then

  5830.     disable memalign

  5831.     disable posix_memalign

  5832. fi

  5833. 

  5834. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  5835.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  5836.     enable dxva2_lib

  5837. 

  5838. ! enabled_any memalign posix_memalign aligned_malloc &&

  5839.     enabled simd_align_16 && enable memalign_hack

  5840. 

  5841. # add_dep lib dep

  5842. # -> enable ${lib}_deps_${dep}

  5843. # -> add $dep to ${lib}_deps only once

  5844. add_dep() {

  5845.     lib=$1

  5846.     dep=$2

  5847.     enabled "${lib}_deps_${dep}" && return 0

  5848.     enable  "${lib}_deps_${dep}"

  5849.     prepend "${lib}_deps" $dep

  5850. }

  5851. 

  5852. # merge deps lib components

  5853. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  5854. merge_deps() {

  5855.     lib=$1

  5856.     shift

  5857.     for comp in $*; do

  5858.         enabled $comp || continue

  5859.         eval "dep=\"\$${comp}_deps\""

  5860.         for d in $dep; do

  5861.             add_dep $lib $d

  5862.         done

  5863.     done

  5864. }

  5865. 

  5866. merge_deps libavfilter $FILTER_LIST

  5867. 

  5868. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  5869. 

  5870. for thread in $THREADS_LIST; do

  5871.     if enabled $thread; then

  5872.         test -n "$thread_type" &&

  5873.             die "ERROR: Only one thread type must be selected." ||

  5874.             thread_type="$thread"

  5875.     fi

  5876. done

  5877. 

  5878. enabled zlib && add_cppflags -DZLIB_CONST

  5879. 

  5880. # conditional library dependencies, in linking order

  5881. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  5882. enabled aresample_filter    && prepend avfilter_deps "swresample"

  5883. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  5884. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  5885. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  5886. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  5887. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  5888. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  5889. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  5890. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  5891. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  5892. enabled pan_filter          && prepend avfilter_deps "swresample"

  5893. enabled pp_filter           && prepend avfilter_deps "postproc"

  5894. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  5895. enabled resample_filter && prepend avfilter_deps "avresample"

  5896. enabled sab_filter          && prepend avfilter_deps "swscale"

  5897. enabled scale_filter    && prepend avfilter_deps "swscale"

  5898. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  5899. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  5900. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  5901. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  5902. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  5903. 

  5904. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  5905. 

  5906. enabled opus_decoder    && prepend avcodec_deps "swresample"

  5907. 

  5908. expand_deps(){

  5909.     lib_deps=${1}_deps

  5910.     eval "deps=\$$lib_deps"

  5911.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  5912.     unique $lib_deps

  5913. }

  5914. 

  5915. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  5916. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  5917. 

  5918. map 'expand_deps $v' $LIBRARY_LIST

  5919. 

  5920. echo "install prefix            $prefix"

  5921. echo "source path               $source_path"

  5922. echo "C compiler                $cc"

  5923. echo "C library                 $libc_type"

  5924. if test "$host_cc" != "$cc"; then

  5925.     echo "host C compiler           $host_cc"

  5926.     echo "host C library            $host_libc_type"

  5927. fi

  5928. echo "ARCH                      $arch ($cpu)"

  5929. if test "$build_suffix" != ""; then

  5930.     echo "build suffix              $build_suffix"

  5931. fi

  5932. if test "$progs_suffix" != ""; then

  5933.     echo "progs suffix              $progs_suffix"

  5934. fi

  5935. if test "$extra_version" != ""; then

  5936.     echo "version string suffix     $extra_version"

  5937. fi

  5938. echo "big-endian                ${bigendian-no}"

  5939. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  5940. if enabled x86; then

  5941.     echo "${yasmexe}                      ${yasm-no}"

  5942.     echo "MMX enabled               ${mmx-no}"

  5943.     echo "MMXEXT enabled            ${mmxext-no}"

  5944.     echo "3DNow! enabled            ${amd3dnow-no}"

  5945.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  5946.     echo "SSE enabled               ${sse-no}"

  5947.     echo "SSSE3 enabled             ${ssse3-no}"

  5948.     echo "AVX enabled               ${avx-no}"

  5949.     echo "XOP enabled               ${xop-no}"

  5950.     echo "FMA3 enabled              ${fma3-no}"

  5951.     echo "FMA4 enabled              ${fma4-no}"

  5952.     echo "i686 features enabled     ${i686-no}"

  5953.     echo "CMOV is fast              ${fast_cmov-no}"

  5954.     echo "EBX available             ${ebx_available-no}"

  5955.     echo "EBP available             ${ebp_available-no}"

  5956. fi

  5957. if enabled aarch64; then

  5958.     echo "NEON enabled              ${neon-no}"

  5959.     echo "VFP enabled               ${vfp-no}"

  5960. fi

  5961. if enabled arm; then

  5962.     echo "ARMv5TE enabled           ${armv5te-no}"

  5963.     echo "ARMv6 enabled             ${armv6-no}"

  5964.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  5965.     echo "VFP enabled               ${vfp-no}"

  5966.     echo "NEON enabled              ${neon-no}"

  5967.     echo "THUMB enabled             ${thumb-no}"

  5968. fi

  5969. if enabled mips; then

  5970.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  5971.     echo "MIPS32R5 enabled          ${mips32r5-no}"

  5972.     echo "MIPS64R6 enabled          ${mips64r6-no}"

  5973.     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"

  5974.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  5975.     echo "MIPS MSA enabled          ${msa-no}"

  5976.     echo "LOONGSON MMI enabled      ${mmi-no}"

  5977. fi

  5978. if enabled ppc; then

  5979.     echo "AltiVec enabled           ${altivec-no}"

  5980.     echo "VSX enabled               ${vsx-no}"

  5981.     echo "POWER8 enabled            ${power8-no}"

  5982.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  5983.     echo "dcbzl available           ${dcbzl-no}"

  5984. fi

  5985. echo "debug symbols             ${debug-no}"

  5986. echo "strip symbols             ${stripping-no}"

  5987. echo "optimize for size         ${small-no}"

  5988. echo "optimizations             ${optimizations-no}"

  5989. echo "static                    ${static-no}"

  5990. echo "shared                    ${shared-no}"

  5991. echo "postprocessing support    ${postproc-no}"

  5992. echo "new filter support        ${avfilter-no}"

  5993. echo "network support           ${network-no}"

  5994. echo "threading support         ${thread_type-no}"

  5995. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  5996. echo "SDL support               ${sdl-no}"

  5997. echo "opencl enabled            ${opencl-no}"

  5998. echo "texi2html enabled         ${texi2html-no}"

  5999. echo "perl enabled              ${perl-no}"

  6000. echo "pod2man enabled           ${pod2man-no}"

  6001. echo "makeinfo enabled          ${makeinfo-no}"

  6002. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6003. test -n "$random_seed" &&

  6004.     echo "random seed               ${random_seed}"

  6005. echo

  6006. 

  6007. echo "Enabled programs:"

  6008. print_enabled '' $PROGRAM_LIST | print_in_columns

  6009. echo

  6010. 

  6011. echo "External libraries:"

  6012. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6013. echo

  6014. 

  6015. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6016.     echo "Enabled ${type}s:"

  6017.     eval list=\$$(toupper $type)_LIST

  6018.     print_enabled '_*' $list | print_in_columns

  6019.     echo

  6020. done

  6021. 

  6022. license="LGPL version 2.1 or later"

  6023. if enabled nonfree; then

  6024.     license="nonfree and unredistributable"

  6025. elif enabled gplv3; then

  6026.     license="GPL version 3 or later"

  6027. elif enabled lgplv3; then

  6028.     license="LGPL version 3 or later"

  6029. elif enabled gpl; then

  6030.     license="GPL version 2 or later"

  6031. fi

  6032. 

  6033. echo "License: $license"

  6034. 

  6035. echo "Creating config.mak, config.h, and doc/config.texi..."

  6036. 

  6037. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6038. 

  6039. enabled stripping || strip="echo skipping strip"

  6040. 

  6041. config_files="$TMPH config.mak doc/config.texi"

  6042. 

  6043. cat > config.mak <<EOF

  6044. # Automatically generated by configure - do not modify!

  6045. ifndef FFMPEG_CONFIG_MAK

  6046. FFMPEG_CONFIG_MAK=1

  6047. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6048. prefix=$prefix

  6049. LIBDIR=\$(DESTDIR)$libdir

  6050. SHLIBDIR=\$(DESTDIR)$shlibdir

  6051. INCDIR=\$(DESTDIR)$incdir

  6052. BINDIR=\$(DESTDIR)$bindir

  6053. DATADIR=\$(DESTDIR)$datadir

  6054. DOCDIR=\$(DESTDIR)$docdir

  6055. MANDIR=\$(DESTDIR)$mandir

  6056. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6057. SRC_PATH=$source_path

  6058. ifndef MAIN_MAKEFILE

  6059. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6060. endif

  6061. CC_IDENT=$cc_ident

  6062. ARCH=$arch

  6063. INTRINSICS=$intrinsics

  6064. CC=$cc

  6065. CXX=$cxx

  6066. AS=$as

  6067. LD=$ld

  6068. DEPCC=$dep_cc

  6069. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6070. DEPAS=$as

  6071. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6072. YASM=$yasmexe

  6073. DEPYASM=$yasmexe

  6074. AR=$ar

  6075. ARFLAGS=$arflags

  6076. AR_O=$ar_o

  6077. RANLIB=$ranlib

  6078. STRIP=$strip

  6079. CP=cp -p

  6080. LN_S=$ln_s

  6081. CPPFLAGS=$CPPFLAGS

  6082. CFLAGS=$CFLAGS

  6083. CXXFLAGS=$CXXFLAGS

  6084. ASFLAGS=$ASFLAGS

  6085. AS_C=$AS_C

  6086. AS_O=$AS_O

  6087. CC_C=$CC_C

  6088. CC_E=$CC_E

  6089. CC_O=$CC_O

  6090. CXX_C=$CXX_C

  6091. CXX_O=$CXX_O

  6092. LD_O=$LD_O

  6093. LD_LIB=$LD_LIB

  6094. LD_PATH=$LD_PATH

  6095. DLLTOOL=$dlltool

  6096. WINDRES=$windres

  6097. DEPWINDRES=$dep_cc

  6098. DOXYGEN=$doxygen

  6099. LDFLAGS=$LDFLAGS

  6100. LDEXEFLAGS=$LDEXEFLAGS

  6101. LDLIBFLAGS=$LDLIBFLAGS

  6102. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6103. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6104. YASMFLAGS=$YASMFLAGS

  6105. BUILDSUF=$build_suffix

  6106. PROGSSUF=$progs_suffix

  6107. FULLNAME=$FULLNAME

  6108. LIBPREF=$LIBPREF

  6109. LIBSUF=$LIBSUF

  6110. LIBNAME=$LIBNAME

  6111. SLIBPREF=$SLIBPREF

  6112. SLIBSUF=$SLIBSUF

  6113. EXESUF=$EXESUF

  6114. EXTRA_VERSION=$extra_version

  6115. CCDEP=$CCDEP

  6116. CXXDEP=$CXXDEP

  6117. CCDEP_FLAGS=$CCDEP_FLAGS

  6118. ASDEP=$ASDEP

  6119. ASDEP_FLAGS=$ASDEP_FLAGS

  6120. CC_DEPFLAGS=$CC_DEPFLAGS

  6121. AS_DEPFLAGS=$AS_DEPFLAGS

  6122. HOSTCC=$host_cc

  6123. HOSTLD=$host_ld

  6124. HOSTCFLAGS=$host_cflags

  6125. HOSTCPPFLAGS=$host_cppflags

  6126. HOSTEXESUF=$HOSTEXESUF

  6127. HOSTLDFLAGS=$host_ldflags

  6128. HOSTLIBS=$host_libs

  6129. DEPHOSTCC=$host_cc

  6130. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6131. HOSTCCDEP=$HOSTCCDEP

  6132. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6133. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6134. HOSTCC_C=$HOSTCC_C

  6135. HOSTCC_O=$HOSTCC_O

  6136. HOSTLD_O=$HOSTLD_O

  6137. TARGET_EXEC=$target_exec $target_exec_args

  6138. TARGET_PATH=$target_path

  6139. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6140. CFLAGS-ffplay=$sdl_cflags

  6141. ZLIB=$($ldflags_filter -lz)

  6142. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6143. EXTRALIBS=$extralibs

  6144. COMPAT_OBJS=$compat_objs

  6145. EXEOBJS=$exeobjs

  6146. INSTALL=$install

  6147. LIBTARGET=${LIBTARGET}

  6148. SLIBNAME=${SLIBNAME}

  6149. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6150. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6151. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6152. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6153. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6154. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6155. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6156. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6157. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6158. NOREDZONE_FLAGS=$noredzone_flags

  6159. EOF

  6160. 

  6161. get_version(){

  6162.     lcname=lib${1}

  6163.     name=$(toupper $lcname)

  6164.     file=$source_path/$lcname/version.h

  6165.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6166.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6167.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6168.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6169.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6170.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6171. }

  6172. 

  6173. map 'get_version $v' $LIBRARY_LIST

  6174. 

  6175. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6176. 

  6177. print_program_libs(){

  6178.     eval "program_libs=\$${1}_libs"

  6179.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6180. }

  6181. 

  6182. map 'print_program_libs $v' $PROGRAM_LIST

  6183. 

  6184. cat > $TMPH <<EOF

  6185. /* Automatically generated by configure - do not modify! */

  6186. #ifndef FFMPEG_CONFIG_H

  6187. #define FFMPEG_CONFIG_H

  6188. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6189. #define FFMPEG_LICENSE "$(c_escape $license)"

  6190. #define CONFIG_THIS_YEAR 2015

  6191. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6192. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6193. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6194. #define av_restrict $_restrict

  6195. #define EXTERN_PREFIX "${extern_prefix}"

  6196. #define EXTERN_ASM ${extern_prefix}

  6197. #define BUILDSUF "$build_suffix"

  6198. #define SLIBSUF "$SLIBSUF"

  6199. #define HAVE_MMX2 HAVE_MMXEXT

  6200. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6201. EOF

  6202. 

  6203. test -n "$assert_level" &&

  6204.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6205. 

  6206. test -n "$malloc_prefix" &&

  6207.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6208. 

  6209. if enabled yasm; then

  6210.     append config_files $TMPASM

  6211.     printf '' >$TMPASM

  6212. fi

  6213. 

  6214. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6215. 

  6216. 

  6217. mkdir -p doc

  6218. mkdir -p tests

  6219. mkdir -p tests/api

  6220. echo "@c auto-generated by configure" > doc/config.texi

  6221. 

  6222. print_config ARCH_   "$config_files" $ARCH_LIST

  6223. print_config HAVE_   "$config_files" $HAVE_LIST

  6224. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6225.                                      $CONFIG_EXTRA      \

  6226.                                      $ALL_COMPONENTS    \

  6227. 

  6228. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6229. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6230. 

  6231. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6232. cp_if_changed $TMPH config.h

  6233. touch .config

  6234. 

  6235. enabled yasm && cp_if_changed $TMPASM config.asm

  6236. 

  6237. cat > $TMPH <<EOF

  6238. /* Generated by ffconf */

  6239. #ifndef AVUTIL_AVCONFIG_H

  6240. #define AVUTIL_AVCONFIG_H

  6241. EOF

  6242. 

  6243. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6244. 

  6245. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6246. 

  6247. cp_if_changed $TMPH libavutil/avconfig.h

  6248. 

  6249. if test -n "$WARNINGS"; then

  6250.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6251.     enabled fatal_warnings && exit 1

  6252. fi

  6253. 

  6254. # build pkg-config files

  6255. 

  6256. lib_version(){

  6257.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6258. }

  6259. 

  6260. pkgconfig_generate(){

  6261.     name=$1

  6262.     shortname=${name#lib}${build_suffix}

  6263.     comment=$2

  6264.     version=$3

  6265.     libs=$4

  6266.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6267.     requires=${requires%, }

  6268.     enabled ${name#lib} || return 0

  6269.     mkdir -p $name

  6270.     cat <<EOF > $name/$name${build_suffix}.pc

  6271. prefix=$prefix

  6272. exec_prefix=\${prefix}

  6273. libdir=$libdir

  6274. includedir=$incdir

  6275. 

  6276. Name: $name

  6277. Description: $comment

  6278. Version: $version

  6279. Requires: $(enabled shared || echo $requires)

  6280. Requires.private: $(enabled shared && echo $requires)

  6281. Conflicts:

  6282. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6283. Libs.private: $(enabled shared && echo $libs)

  6284. Cflags: -I\${includedir}

  6285. EOF

  6286. 

  6287. mkdir -p doc/examples/pc-uninstalled

  6288. includedir=${source_path}

  6289. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6290.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6291. prefix=

  6292. exec_prefix=

  6293. libdir=\${pcfiledir}/../../../$name

  6294. includedir=${includedir}

  6295. 

  6296. Name: $name

  6297. Description: $comment

  6298. Version: $version

  6299. Requires: $requires

  6300. Conflicts:

  6301. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6302. Cflags: -I\${includedir}

  6303. EOF

  6304. }

  6305. 

  6306. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6307. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6308. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6309. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6310. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6311. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6312. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6313. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6314. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"