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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-avutil         disable libavutil build

  132.   --disable-swresample     disable libswresample build

  133.   --disable-swscale        disable libswscale build

  134.   --disable-postproc       disable libpostproc build

  135.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  141.   --disable-dct            disable DCT code

  142.   --disable-dwt            disable DWT code

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

  144.   --disable-lsp            disable LSP code

  145.   --disable-lzo            disable LZO decoder code

  146.   --disable-mdct           disable MDCT code

  147.   --disable-rdft           disable RDFT code

  148.   --disable-fft            disable FFT code

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

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

  151. 

  152. Hardware accelerators:

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

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

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

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

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

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

  159. 

  160. Individual component options:

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

  162.   --disable-encoder=NAME   disable encoder NAME

  163.   --enable-encoder=NAME    enable encoder NAME

  164.   --disable-encoders       disable all encoders

  165.   --disable-decoder=NAME   disable decoder NAME

  166.   --enable-decoder=NAME    enable decoder NAME

  167.   --disable-decoders       disable all decoders

  168.   --disable-hwaccel=NAME   disable hwaccel NAME

  169.   --enable-hwaccel=NAME    enable hwaccel NAME

  170.   --disable-hwaccels       disable all hwaccels

  171.   --disable-muxer=NAME     disable muxer NAME

  172.   --enable-muxer=NAME      enable muxer NAME

  173.   --disable-muxers         disable all muxers

  174.   --disable-demuxer=NAME   disable demuxer NAME

  175.   --enable-demuxer=NAME    enable demuxer NAME

  176.   --disable-demuxers       disable all demuxers

  177.   --enable-parser=NAME     enable parser NAME

  178.   --disable-parser=NAME    disable parser NAME

  179.   --disable-parsers        disable all parsers

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

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

  182.   --disable-bsfs           disable all bitstream filters

  183.   --enable-protocol=NAME   enable protocol NAME

  184.   --disable-protocol=NAME  disable protocol NAME

  185.   --disable-protocols      disable all protocols

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

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

  188.   --disable-indevs         disable input devices

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

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

  191.   --disable-outdevs        disable output devices

  192.   --disable-devices        disable all devices

  193.   --enable-filter=NAME     enable filter NAME

  194.   --disable-filter=NAME    disable filter NAME

  195.   --disable-filters        disable all filters

  196. 

  197. External library support:

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

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

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

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

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

  203.                            if openssl is not used [no]

  204.   --disable-iconv          disable iconv [autodetect]

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

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

  207.   --enable-libass          enable libass subtitles rendering,

  208.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  215.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

  227.   --enable-libmfx          enable HW acceleration through libmfx

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

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

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

  231.                            native (de)muxer exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  259.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  274.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

  279.   --enable-opencl          enable OpenCL code

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

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

  282.                            if gnutls is not used [no]

  283.   --disable-sdl            disable sdl [autodetect]

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

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

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

  287.   --disable-xlib           disable xlib [autodetect]

  288.   --disable-zlib           disable zlib [autodetect]

  289. 

  290. Toolchain options:

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

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

  293.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  338. 

  339. Advanced options (experts only):

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

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

  342.   --disable-symver         disable symbol versioning

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

  344.   --disable-safe-bitstream-reader

  345.                            disable buffer boundary checking in bitreaders

  346.                            (faster, but may crash)

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

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

  349. 

  350. Optimization options (experts only):

  351.   --disable-asm            disable all assembly optimizations

  352.   --disable-altivec        disable AltiVec optimizations

  353.   --disable-vsx            disable VSX optimizations

  354.   --disable-power8         disable POWER8 optimizations

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

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

  357.   --disable-mmx            disable MMX optimizations

  358.   --disable-mmxext         disable MMXEXT optimizations

  359.   --disable-sse            disable SSE optimizations

  360.   --disable-sse2           disable SSE2 optimizations

  361.   --disable-sse3           disable SSE3 optimizations

  362.   --disable-ssse3          disable SSSE3 optimizations

  363.   --disable-sse4           disable SSE4 optimizations

  364.   --disable-sse42          disable SSE4.2 optimizations

  365.   --disable-avx            disable AVX optimizations

  366.   --disable-xop            disable XOP optimizations

  367.   --disable-fma3           disable FMA3 optimizations

  368.   --disable-fma4           disable FMA4 optimizations

  369.   --disable-avx2           disable AVX2 optimizations

  370.   --disable-armv5te        disable armv5te optimizations

  371.   --disable-armv6          disable armv6 optimizations

  372.   --disable-armv6t2        disable armv6t2 optimizations

  373.   --disable-vfp            disable VFP optimizations

  374.   --disable-neon           disable NEON optimizations

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

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

  377.   --disable-mips32r5       disable MIPS32R5 optimizations

  378.   --disable-mips64r6       disable MIPS64R6 optimizations

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

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

  381.   --disable-msa            disable MSA optimizations

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

  383.   --disable-mmi            disable Loongson SIMD optimizations

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

  385. 

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

  387.   --disable-debug          disable debugging symbols

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

  389.   --disable-optimizations  disable compiler optimizations

  390.   --enable-extra-warnings  enable more compiler warnings

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

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

  393.                            2 causes a slowdown at runtime.

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

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

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

  397.                            Cannot be combined with --target-exec

  398.   --enable-ftrapv          Trap arithmetic overflows

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

  400.                            \$FATE_SAMPLES at make invocation time.

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

  402.                            used only for debugging purposes)

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

  404.                            should be used only for debugging purposes)

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

  406.   --disable-random

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

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

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

  410.                            (group) and PROB the probability associated with

  411.                            NAME (default 0.5).

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

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

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

  415. 

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

  417. EOF

  418.   exit 0

  419. }

  420. 

  421. quotes='""'

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

  423.     ncolors=$(tput colors)

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

  425.         bold_color=$(tput bold)

  426.         warn_color=$(tput setaf 3)

  427.         error_color=$(tput setaf 1)

  428.         reset_color=$(tput sgr0)

  429.     fi

  430.     # 72 used instead of 80 since that's the default of pr

  431.     ncols=$(tput cols)

  432. fi

  433. : ${ncols:=72}

  434. 

  435. log(){

  436.     echo "$@" >> $logfile

  437. }

  438. 

  439. log_file(){

  440.     log BEGIN $1

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

  442.     log END $1

  443. }

  444. 

  445. warn(){

  446.     log "WARNING: $*"

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

  448. }

  449. 

  450. die(){

  451.     log "$@"

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

  453.     cat <<EOF

  454. 

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

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

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

  458. EOF

  459.     if disabled logging; then

  460.         cat <<EOF

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

  462. include the log this produces with your report.

  463. EOF

  464.     else

  465.         cat <<EOF

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

  467. solve the problem.

  468. EOF

  469.     fi

  470.     exit 1

  471. }

  472. 

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

  474. toupper(){

  475.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  476. }

  477. 

  478. tolower(){

  479.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  480. }

  481. 

  482. c_escape(){

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

  484. }

  485. 

  486. sh_quote(){

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

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

  489.     echo "$v"

  490. }

  491. 

  492. cleanws(){

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

  494. }

  495. 

  496. filter(){

  497.     pat=$1

  498.     shift

  499.     for v; do

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

  501.     done

  502. }

  503. 

  504. filter_out(){

  505.     pat=$1

  506.     shift

  507.     for v; do

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

  509.     done

  510. }

  511. 

  512. map(){

  513.     m=$1

  514.     shift

  515.     for v; do eval $m; done

  516. }

  517. 

  518. add_suffix(){

  519.     suffix=$1

  520.     shift

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

  522. }

  523. 

  524. set_all(){

  525.     value=$1

  526.     shift

  527.     for var in $*; do

  528.         eval $var=$value

  529.     done

  530. }

  531. 

  532. set_weak(){

  533.     value=$1

  534.     shift

  535.     for var; do

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

  537.     done

  538. }

  539. 

  540. sanitize_var_name(){

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

  542. }

  543. 

  544. set_safe(){

  545.     var=$1

  546.     shift

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

  548. }

  549. 

  550. get_safe(){

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

  552. }

  553. 

  554. pushvar(){

  555.     for pvar in $*; do

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

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

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

  559.     done

  560. }

  561. 

  562. popvar(){

  563.     for pvar in $*; do

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

  565.         test $level = 0 && continue

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

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

  568.         eval ${pvar}_level=$level

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

  570.     done

  571. }

  572. 

  573. enable(){

  574.     set_all yes $*

  575. }

  576. 

  577. disable(){

  578.     set_all no $*

  579. }

  580. 

  581. enable_weak(){

  582.     set_weak yes $*

  583. }

  584. 

  585. disable_weak(){

  586.     set_weak no $*

  587. }

  588. 

  589. enable_safe(){

  590.     for var; do

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

  592.     done

  593. }

  594. 

  595. disable_safe(){

  596.     for var; do

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

  598.     done

  599. }

  600. 

  601. do_enable_deep(){

  602.     for var; do

  603.         enabled $var && continue

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

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

  606.         pushvar var sgs

  607.         enable_deep $sel

  608.         popvar sgs

  609.         enable_deep_weak $sgs

  610.         popvar var

  611.     done

  612. }

  613. 

  614. enable_deep(){

  615.     do_enable_deep $*

  616.     enable $*

  617. }

  618. 

  619. enable_deep_weak(){

  620.     for var; do

  621.         disabled $var && continue

  622.         pushvar var

  623.         do_enable_deep $var

  624.         popvar var

  625.         enable_weak $var

  626.     done

  627. }

  628. 

  629. enabled(){

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

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

  632. }

  633. 

  634. disabled(){

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

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

  637. }

  638. 

  639. enabled_all(){

  640.     for opt; do

  641.         enabled $opt || return 1

  642.     done

  643. }

  644. 

  645. disabled_all(){

  646.     for opt; do

  647.         disabled $opt || return 1

  648.     done

  649. }

  650. 

  651. enabled_any(){

  652.     for opt; do

  653.         enabled $opt && return 0

  654.     done

  655. }

  656. 

  657. disabled_any(){

  658.     for opt; do

  659.         disabled $opt && return 0

  660.     done

  661.     return 1

  662. }

  663. 

  664. set_default(){

  665.     for opt; do

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

  667.     done

  668. }

  669. 

  670. is_in(){

  671.     value=$1

  672.     shift

  673.     for var in $*; do

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

  675.     done

  676.     return 1

  677. }

  678. 

  679. do_check_deps(){

  680.     for cfg; do

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

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

  683.         disabled ${cfg}_checking && continue

  684.         enable ${cfg}_checking

  685.         append allopts $cfg

  686. 

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

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

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

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

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

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

  693. 

  694.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  696.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  697. 

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

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

  700.         enabled_all  $dep_all || disable $cfg

  701.         enabled_any  $dep_any || disable $cfg

  702.         disabled_any $dep_sel && disable $cfg

  703. 

  704.         if enabled $cfg; then

  705.             enable_deep $dep_sel

  706.             enable_deep_weak $dep_sgs

  707.         fi

  708. 

  709.         disable ${cfg}_checking

  710.     done

  711. }

  712. 

  713. check_deps(){

  714.     unset allopts

  715. 

  716.     do_check_deps "$@"

  717. 

  718.     for cfg in $allopts; do

  719.         enabled $cfg || continue

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

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

  722.     done

  723. }

  724. 

  725. print_config(){

  726.     pfx=$1

  727.     files=$2

  728.     shift 2

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

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

  731.         {

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

  733.             v = \$2;

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

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

  736.             for (f in files) {

  737.                 file = files[f];

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

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

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

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

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

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

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

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

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

  747.                     yesno = \$2;

  748.                     c2 = tolower(c);

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

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

  751.                 }

  752.             }

  753.         }"

  754. }

  755. 

  756. print_enabled(){

  757.     suf=$1

  758.     shift

  759.     for v; do

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

  761.     done

  762. }

  763. 

  764. append(){

  765.     var=$1

  766.     shift

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

  768. }

  769. 

  770. prepend(){

  771.     var=$1

  772.     shift

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

  774. }

  775. 

  776. unique(){

  777.     var=$1

  778.     uniq_list=""

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

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

  781.     done

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

  783. }

  784. 

  785. add_cppflags(){

  786.     append CPPFLAGS "$@"

  787. }

  788. 

  789. add_cflags(){

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

  791. }

  792. 

  793. add_cxxflags(){

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

  795. }

  796. 

  797. add_asflags(){

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

  799. }

  800. 

  801. add_ldflags(){

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

  803. }

  804. 

  805. add_ldexeflags(){

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

  807. }

  808. 

  809. add_ldlibflags(){

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

  811. }

  812. 

  813. add_stripflags(){

  814.     append ASMSTRIPFLAGS "$@"

  815. }

  816. 

  817. add_extralibs(){

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

  819. }

  820. 

  821. add_host_cppflags(){

  822.     append host_cppflags "$@"

  823. }

  824. 

  825. add_host_cflags(){

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

  827. }

  828. 

  829. add_host_ldflags(){

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

  831. }

  832. 

  833. add_compat(){

  834.     append compat_objs $1

  835.     shift

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

  837. }

  838. 

  839. check_cmd(){

  840.     log "$@"

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

  842. }

  843. 

  844. check_stat(){

  845.     log check_stat "$@"

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

  847. }

  848. 

  849. cc_o(){

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

  851. }

  852. 

  853. cc_e(){

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

  855. }

  856. 

  857. check_cc(){

  858.     log check_cc "$@"

  859.     cat > $TMPC

  860.     log_file $TMPC

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

  862. }

  863. 

  864. check_cxx(){

  865.     log check_cxx "$@"

  866.     cat > $TMPCPP

  867.     log_file $TMPCPP

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

  869. }

  870. 

  871. check_oc(){

  872.     log check_oc "$@"

  873.     cat > $TMPM

  874.     log_file $TMPM

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

  876. }

  877. 

  878. check_cpp(){

  879.     log check_cpp "$@"

  880.     cat > $TMPC

  881.     log_file $TMPC

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

  883. }

  884. 

  885. as_o(){

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

  887. }

  888. 

  889. check_as(){

  890.     log check_as "$@"

  891.     cat > $TMPS

  892.     log_file $TMPS

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

  894. }

  895. 

  896. check_inline_asm(){

  897.     log check_inline_asm "$@"

  898.     name="$1"

  899.     code="$2"

  900.     shift 2

  901.     disable $name

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

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

  904. EOF

  905. }

  906. 

  907. check_insn(){

  908.     log check_insn "$@"

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

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

  911. }

  912. 

  913. check_yasm(){

  914.     log check_yasm "$@"

  915.     echo "$1" > $TMPS

  916.     log_file $TMPS

  917.     shift 1

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

  919. }

  920. 

  921. ld_o(){

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

  923. }

  924. 

  925. check_ld(){

  926.     log check_ld "$@"

  927.     type=$1

  928.     shift 1

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

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

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

  932.     flags=$($ldflags_filter $flags)

  933.     libs=$($ldflags_filter $libs)

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

  935. }

  936. 

  937. print_include(){

  938.     hdr=$1

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

  940.         echo "#include $hdr"    ||

  941.         echo "#include <$hdr>"

  942. }

  943. 

  944. check_code(){

  945.     log check_code "$@"

  946.     check=$1

  947.     headers=$2

  948.     code=$3

  949.     shift 3

  950.     {

  951.         for hdr in $headers; do

  952.             print_include $hdr

  953.         done

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

  955.     } | check_$check "$@"

  956. }

  957. 

  958. check_cppflags(){

  959.     log check_cppflags "$@"

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

  961. int x;

  962. EOF

  963. }

  964. 

  965. test_cflags(){

  966.     log test_cflags "$@"

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

  968.     check_cc "$@" <<EOF

  969. int x;

  970. EOF

  971. }

  972. 

  973. check_cflags(){

  974.     log check_cflags "$@"

  975.     test_cflags "$@" && add_cflags "$@"

  976. }

  977. 

  978. check_cxxflags(){

  979.     log check_cxxflags "$@"

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

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

  982. int x;

  983. EOF

  984. }

  985. 

  986. test_ldflags(){

  987.     log test_ldflags "$@"

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

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

  990. EOF

  991. }

  992. 

  993. check_ldflags(){

  994.     log check_ldflags "$@"

  995.     test_ldflags "$@" && add_ldflags "$@"

  996. }

  997. 

  998. test_stripflags(){

  999.     log test_stripflags "$@"

  1000.     # call check_cc to get a fresh TMPO

  1001.     check_cc <<EOF

  1002. int main(void) { return 0; }

  1003. EOF

  1004.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1005. }

  1006. 

  1007. check_stripflags(){

  1008.     log check_stripflags "$@"

  1009.     test_stripflags "$@" && add_stripflags "$@"

  1010. }

  1011. 

  1012. check_header(){

  1013.     log check_header "$@"

  1014.     header=$1

  1015.     shift

  1016.     disable_safe $header

  1017.     check_cpp "$@" <<EOF && enable_safe $header

  1018. #include <$header>

  1019. int x;

  1020. EOF

  1021. }

  1022. 

  1023. check_header_oc(){

  1024.     log check_header_oc "$@"

  1025.     rm -f -- "$TMPO"

  1026.     header=$1

  1027.     shift

  1028.     disable_safe $header

  1029.     {

  1030.        echo "#include <$header>"

  1031.        echo "int main(void) { return 0; }"

  1032.     } | check_oc && check_stat "$TMPO" && enable_safe $headers

  1033. }

  1034. 

  1035. check_func(){

  1036.     log check_func "$@"

  1037.     func=$1

  1038.     shift

  1039.     disable $func

  1040.     check_ld "cc" "$@" <<EOF && enable $func

  1041. extern int $func();

  1042. int main(void){ $func(); }

  1043. EOF

  1044. }

  1045. 

  1046. check_mathfunc(){

  1047.     log check_mathfunc "$@"

  1048.     func=$1

  1049.     narg=$2

  1050.     shift 2

  1051.     test $narg = 2 && args="f, g" || args="f"

  1052.     disable $func

  1053.     check_ld "cc" "$@" <<EOF && enable $func

  1054. #include <math.h>

  1055. float foo(float f, float g) { return $func($args); }

  1056. int main(void){ return (int) foo; }

  1057. EOF

  1058. }

  1059. 

  1060. check_func_headers(){

  1061.     log check_func_headers "$@"

  1062.     headers=$1

  1063.     funcs=$2

  1064.     shift 2

  1065.     {

  1066.         for hdr in $headers; do

  1067.             print_include $hdr

  1068.         done

  1069.         for func in $funcs; do

  1070.             echo "long check_$func(void) { return (long) $func; }"

  1071.         done

  1072.         echo "int main(void) { return 0; }"

  1073.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1074. }

  1075. 

  1076. check_class_headers_cpp(){

  1077.     log check_class_headers_cpp "$@"

  1078.     headers=$1

  1079.     classes=$2

  1080.     shift 2

  1081.     {

  1082.         for hdr in $headers; do

  1083.             echo "#include <$hdr>"

  1084.         done

  1085.         echo "int main(void) { "

  1086.         i=1

  1087.         for class in $classes; do

  1088.             echo "$class obj$i;"

  1089.             i=$(expr $i + 1)

  1090.         done

  1091.         echo "return 0; }"

  1092.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1093. }

  1094. 

  1095. check_cpp_condition(){

  1096.     log check_cpp_condition "$@"

  1097.     header=$1

  1098.     condition=$2

  1099.     shift 2

  1100.     check_cpp "$@" <<EOF

  1101. #include <$header>

  1102. #if !($condition)

  1103. #error "unsatisfied condition: $condition"

  1104. #endif

  1105. EOF

  1106. }

  1107. 

  1108. check_lib(){

  1109.     log check_lib "$@"

  1110.     header="$1"

  1111.     func="$2"

  1112.     shift 2

  1113.     check_header $header && check_func $func "$@" && add_extralibs "$@"

  1114. }

  1115. 

  1116. check_lib2(){

  1117.     log check_lib2 "$@"

  1118.     headers="$1"

  1119.     funcs="$2"

  1120.     shift 2

  1121.     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"

  1122. }

  1123. 

  1124. check_lib_cpp(){

  1125.     log check_lib_cpp "$@"

  1126.     headers="$1"

  1127.     classes="$2"

  1128.     shift 2

  1129.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1130. }

  1131. 

  1132. check_pkg_config(){

  1133.     log check_pkg_config "$@"

  1134.     pkgandversion="$1"

  1135.     pkg="${1%% *}"

  1136.     headers="$2"

  1137.     funcs="$3"

  1138.     shift 3

  1139.     check_cmd $pkg_config --exists --print-errors $pkgandversion || return

  1140.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1141.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1142.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1143.         set_safe "${pkg}_cflags" $pkg_cflags   &&

  1144.         set_safe "${pkg}_libs"   $pkg_libs

  1145. }

  1146. 

  1147. check_exec(){

  1148.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1149. }

  1150. 

  1151. check_exec_crash(){

  1152.     code=$(cat)

  1153. 

  1154.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1155.     # are safe but may not be available everywhere.  Thus we use

  1156.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1157.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1158.     # is not defined by standard C so it is used conditionally.

  1159. 

  1160.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1161. #include <signal.h>

  1162. static void sighandler(int sig){

  1163.     raise(SIGTERM);

  1164. }

  1165. int foo(void){

  1166.     $code

  1167. }

  1168. int (*func_ptr)(void) = foo;

  1169. int main(void){

  1170.     signal(SIGILL, sighandler);

  1171.     signal(SIGFPE, sighandler);

  1172.     signal(SIGSEGV, sighandler);

  1173. #ifdef SIGBUS

  1174.     signal(SIGBUS, sighandler);

  1175. #endif

  1176.     return func_ptr();

  1177. }

  1178. EOF

  1179. }

  1180. 

  1181. check_type(){

  1182.     log check_type "$@"

  1183.     headers=$1

  1184.     type=$2

  1185.     shift 2

  1186.     disable_safe "$type"

  1187.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1188. }

  1189. 

  1190. check_struct(){

  1191.     log check_struct "$@"

  1192.     headers=$1

  1193.     struct=$2

  1194.     member=$3

  1195.     shift 3

  1196.     disable_safe "${struct}_${member}"

  1197.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1198.         enable_safe "${struct}_${member}"

  1199. }

  1200. 

  1201. check_builtin(){

  1202.     log check_builtin "$@"

  1203.     name=$1

  1204.     headers=$2

  1205.     builtin=$3

  1206.     shift 3

  1207.     disable "$name"

  1208.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1209. }

  1210. 

  1211. check_compile_assert(){

  1212.     log check_compile_assert "$@"

  1213.     name=$1

  1214.     headers=$2

  1215.     condition=$3

  1216.     shift 3

  1217.     disable "$name"

  1218.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1219. }

  1220. 

  1221. require(){

  1222.     name="$1"

  1223.     header="$2"

  1224.     func="$3"

  1225.     shift 3

  1226.     check_lib $header $func "$@" || die "ERROR: $name not found"

  1227. }

  1228. 

  1229. require2(){

  1230.     name="$1"

  1231.     headers="$2"

  1232.     func="$3"

  1233.     shift 3

  1234.     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"

  1235. }

  1236. 

  1237. require_cpp(){

  1238.     name="$1"

  1239.     headers="$2"

  1240.     classes="$3"

  1241.     shift 3

  1242.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1243. }

  1244. 

  1245. use_pkg_config(){

  1246.     pkg="$1"

  1247.     check_pkg_config "$@" || return 1

  1248.     add_cflags    $(get_safe "${pkg}_cflags")

  1249.     add_extralibs $(get_safe "${pkg}_libs")

  1250. }

  1251. 

  1252. require_pkg_config(){

  1253.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1254. }

  1255. 

  1256. require_libfreetype(){

  1257.     log require_libfreetype "$@"

  1258.     pkg="freetype2"

  1259.     check_cmd $pkg_config --exists --print-errors $pkg \

  1260.       || die "ERROR: $pkg not found"

  1261.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1262.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1263.     {

  1264.         echo "#include <ft2build.h>"

  1265.         echo "#include FT_FREETYPE_H"

  1266.         echo "long check_func(void) { return (long) FT_Init_FreeType; }"

  1267.         echo "int main(void) { return 0; }"

  1268.     } | check_ld "cc" $pkg_cflags $pkg_libs \

  1269.       && set_safe "${pkg}_cflags" $pkg_cflags \

  1270.       && set_safe "${pkg}_libs"   $pkg_libs \

  1271.       || die "ERROR: $pkg not found"

  1272.     add_cflags    $(get_safe "${pkg}_cflags")

  1273.     add_extralibs $(get_safe "${pkg}_libs")

  1274. }

  1275. 

  1276. hostcc_e(){

  1277.     eval printf '%s\\n' $HOSTCC_E

  1278. }

  1279. 

  1280. hostcc_o(){

  1281.     eval printf '%s\\n' $HOSTCC_O

  1282. }

  1283. 

  1284. check_host_cc(){

  1285.     log check_host_cc "$@"

  1286.     cat > $TMPC

  1287.     log_file $TMPC

  1288.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1289. }

  1290. 

  1291. check_host_cpp(){

  1292.     log check_host_cpp "$@"

  1293.     cat > $TMPC

  1294.     log_file $TMPC

  1295.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1296. }

  1297. 

  1298. check_host_cppflags(){

  1299.     log check_host_cppflags "$@"

  1300.     check_host_cc "$@" <<EOF && append host_cppflags "$@"

  1301. int x;

  1302. EOF

  1303. }

  1304. 

  1305. check_host_cflags(){

  1306.     log check_host_cflags "$@"

  1307.     set -- $($host_cflags_filter "$@")

  1308.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1309. int x;

  1310. EOF

  1311. }

  1312. 

  1313. check_host_cpp_condition(){

  1314.     log check_host_cpp_condition "$@"

  1315.     header=$1

  1316.     condition=$2

  1317.     shift 2

  1318.     check_host_cpp "$@" <<EOF

  1319. #include <$header>

  1320. #if !($condition)

  1321. #error "unsatisfied condition: $condition"

  1322. #endif

  1323. EOF

  1324. }

  1325. 

  1326. cp_if_changed(){

  1327.     cmp -s "$1" "$2" && echo "$2 is unchanged" && return

  1328.     mkdir -p "$(dirname $2)"

  1329.     $cp_f "$1" "$2"

  1330. }

  1331. 

  1332. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1333. # system-dependent things.

  1334. 

  1335. COMPONENT_LIST="

  1336.     bsfs

  1337.     decoders

  1338.     demuxers

  1339.     encoders

  1340.     filters

  1341.     hwaccels

  1342.     indevs

  1343.     muxers

  1344.     outdevs

  1345.     parsers

  1346.     protocols

  1347. "

  1348. 

  1349. EXAMPLE_LIST="

  1350.     avio_reading_example

  1351.     avio_dir_cmd_example

  1352.     decoding_encoding_example

  1353.     demuxing_decoding_example

  1354.     extract_mvs_example

  1355.     filter_audio_example

  1356.     filtering_audio_example

  1357.     filtering_video_example

  1358.     metadata_example

  1359.     muxing_example

  1360.     qsvdec_example

  1361.     remuxing_example

  1362.     resampling_audio_example

  1363.     scaling_video_example

  1364.     transcode_aac_example

  1365.     transcoding_example

  1366. "

  1367. 

  1368. EXTERNAL_LIBRARY_LIST="

  1369.     avisynth

  1370.     bzlib

  1371.     crystalhd

  1372.     decklink

  1373.     frei0r

  1374.     gnutls

  1375.     iconv

  1376.     ladspa

  1377.     libaacplus

  1378.     libass

  1379.     libbluray

  1380.     libbs2b

  1381.     libcaca

  1382.     libcdio

  1383.     libcelt

  1384.     libdc1394

  1385.     libdcadec

  1386.     libfaac

  1387.     libfdk_aac

  1388.     libflite

  1389.     libfontconfig

  1390.     libfreetype

  1391.     libfribidi

  1392.     libgme

  1393.     libgsm

  1394.     libiec61883

  1395.     libilbc

  1396.     libkvazaar

  1397.     libmfx

  1398.     libmodplug

  1399.     libmp3lame

  1400.     libnut

  1401.     libopencore_amrnb

  1402.     libopencore_amrwb

  1403.     libopencv

  1404.     libopenh264

  1405.     libopenjpeg

  1406.     libopus

  1407.     libpulse

  1408.     libquvi

  1409.     librtmp

  1410.     librubberband

  1411.     libschroedinger

  1412.     libshine

  1413.     libsmbclient

  1414.     libsnappy

  1415.     libsoxr

  1416.     libspeex

  1417.     libssh

  1418.     libstagefright_h264

  1419.     libtesseract

  1420.     libtheora

  1421.     libtwolame

  1422.     libutvideo

  1423.     libv4l2

  1424.     libvidstab

  1425.     libvo_aacenc

  1426.     libvo_amrwbenc

  1427.     libvorbis

  1428.     libvpx

  1429.     libwavpack

  1430.     libwebp

  1431.     libx264

  1432.     libx265

  1433.     libxavs

  1434.     libxcb

  1435.     libxcb_shm

  1436.     libxcb_shape

  1437.     libxcb_xfixes

  1438.     libxvid

  1439.     libzmq

  1440.     libzvbi

  1441.     lzma

  1442.     mmal

  1443.     nvenc

  1444.     openal

  1445.     opencl

  1446.     opengl

  1447.     openssl

  1448.     sdl

  1449.     securetransport

  1450.     x11grab

  1451.     xlib

  1452.     zlib

  1453. "

  1454. 

  1455. DOCUMENT_LIST="

  1456.     doc

  1457.     htmlpages

  1458.     manpages

  1459.     podpages

  1460.     txtpages

  1461. "

  1462. 

  1463. FEATURE_LIST="

  1464.     ftrapv

  1465.     gray

  1466.     hardcoded_tables

  1467.     runtime_cpudetect

  1468.     safe_bitstream_reader

  1469.     shared

  1470.     small

  1471.     static

  1472.     swscale_alpha

  1473. "

  1474. 

  1475. HWACCEL_LIST="

  1476.     d3d11va

  1477.     dxva2

  1478.     vaapi

  1479.     vda

  1480.     vdpau

  1481.     videotoolbox

  1482.     xvmc

  1483. "

  1484. 

  1485. LIBRARY_LIST="

  1486.     avcodec

  1487.     avdevice

  1488.     avfilter

  1489.     avformat

  1490.     avresample

  1491.     avutil

  1492.     postproc

  1493.     swresample

  1494.     swscale

  1495. "

  1496. 

  1497. LICENSE_LIST="

  1498.     gpl

  1499.     nonfree

  1500.     version3

  1501. "

  1502. 

  1503. PROGRAM_LIST="

  1504.     ffplay

  1505.     ffprobe

  1506.     ffserver

  1507.     ffmpeg

  1508. "

  1509. 

  1510. SUBSYSTEM_LIST="

  1511.     dct

  1512.     dwt

  1513.     error_resilience

  1514.     faan

  1515.     fast_unaligned

  1516.     fft

  1517.     lsp

  1518.     lzo

  1519.     mdct

  1520.     pixelutils

  1521.     network

  1522.     rdft

  1523. "

  1524. 

  1525. CONFIG_LIST="

  1526.     $COMPONENT_LIST

  1527.     $DOCUMENT_LIST

  1528.     $EXAMPLE_LIST

  1529.     $EXTERNAL_LIBRARY_LIST

  1530.     $FEATURE_LIST

  1531.     $HWACCEL_LIST

  1532.     $LICENSE_LIST

  1533.     $LIBRARY_LIST

  1534.     $PROGRAM_LIST

  1535.     $SUBSYSTEM_LIST

  1536.     fontconfig

  1537.     incompatible_libav_abi

  1538.     memalign_hack

  1539.     memory_poisoning

  1540.     neon_clobber_test

  1541.     pic

  1542.     pod2man

  1543.     raise_major

  1544.     thumb

  1545.     valgrind_backtrace

  1546.     xmm_clobber_test

  1547. "

  1548. 

  1549. THREADS_LIST="

  1550.     pthreads

  1551.     os2threads

  1552.     w32threads

  1553. "

  1554. 

  1555. ATOMICS_LIST="

  1556.     atomics_gcc

  1557.     atomics_suncc

  1558.     atomics_win32

  1559. "

  1560. 

  1561. ARCH_LIST="

  1562.     aarch64

  1563.     alpha

  1564.     arm

  1565.     avr32

  1566.     avr32_ap

  1567.     avr32_uc

  1568.     bfin

  1569.     ia64

  1570.     m68k

  1571.     mips

  1572.     mips64

  1573.     parisc

  1574.     ppc

  1575.     ppc64

  1576.     s390

  1577.     sh4

  1578.     sparc

  1579.     sparc64

  1580.     tilegx

  1581.     tilepro

  1582.     tomi

  1583.     x86

  1584.     x86_32

  1585.     x86_64

  1586. "

  1587. 

  1588. ARCH_EXT_LIST_ARM="

  1589.     armv5te

  1590.     armv6

  1591.     armv6t2

  1592.     armv8

  1593.     neon

  1594.     vfp

  1595.     vfpv3

  1596.     setend

  1597. "

  1598. 

  1599. ARCH_EXT_LIST_MIPS="

  1600.     mipsfpu

  1601.     mips32r2

  1602.     mips32r5

  1603.     mips64r6

  1604.     mipsdspr1

  1605.     mipsdspr2

  1606.     msa

  1607. "

  1608. 

  1609. ARCH_EXT_LIST_LOONGSON="

  1610.     loongson2

  1611.     loongson3

  1612.     mmi

  1613. "

  1614. 

  1615. ARCH_EXT_LIST_X86_SIMD="

  1616.     amd3dnow

  1617.     amd3dnowext

  1618.     avx

  1619.     avx2

  1620.     fma3

  1621.     fma4

  1622.     mmx

  1623.     mmxext

  1624.     sse

  1625.     sse2

  1626.     sse3

  1627.     sse4

  1628.     sse42

  1629.     ssse3

  1630.     xop

  1631. "

  1632. 

  1633. ARCH_EXT_LIST_PPC="

  1634.     altivec

  1635.     dcbzl

  1636.     ldbrx

  1637.     power8

  1638.     ppc4xx

  1639.     vsx

  1640. "

  1641. 

  1642. ARCH_EXT_LIST_X86="

  1643.     $ARCH_EXT_LIST_X86_SIMD

  1644.     cpunop

  1645.     i686

  1646. "

  1647. 

  1648. ARCH_EXT_LIST="

  1649.     $ARCH_EXT_LIST_ARM

  1650.     $ARCH_EXT_LIST_PPC

  1651.     $ARCH_EXT_LIST_X86

  1652.     $ARCH_EXT_LIST_MIPS

  1653.     $ARCH_EXT_LIST_LOONGSON

  1654. "

  1655. 

  1656. ARCH_FEATURES="

  1657.     aligned_stack

  1658.     fast_64bit

  1659.     fast_clz

  1660.     fast_cmov

  1661.     local_aligned_8

  1662.     local_aligned_16

  1663.     local_aligned_32

  1664.     simd_align_16

  1665. "

  1666. 

  1667. BUILTIN_LIST="

  1668.     atomic_cas_ptr

  1669.     atomic_compare_exchange

  1670.     machine_rw_barrier

  1671.     MemoryBarrier

  1672.     mm_empty

  1673.     rdtsc

  1674.     sarestart

  1675.     sync_val_compare_and_swap

  1676. "

  1677. HAVE_LIST_CMDLINE="

  1678.     inline_asm

  1679.     symver

  1680.     yasm

  1681. "

  1682. 

  1683. HAVE_LIST_PUB="

  1684.     bigendian

  1685.     fast_unaligned

  1686.     incompatible_libav_abi

  1687. "

  1688. 

  1689. HEADERS_LIST="

  1690.     alsa_asoundlib_h

  1691.     altivec_h

  1692.     arpa_inet_h

  1693.     asm_types_h

  1694.     cdio_paranoia_h

  1695.     cdio_paranoia_paranoia_h

  1696.     dev_bktr_ioctl_bt848_h

  1697.     dev_bktr_ioctl_meteor_h

  1698.     dev_ic_bt8xx_h

  1699.     dev_video_bktr_ioctl_bt848_h

  1700.     dev_video_meteor_ioctl_meteor_h

  1701.     direct_h

  1702.     dirent_h

  1703.     dlfcn_h

  1704.     d3d11_h

  1705.     dxva_h

  1706.     ES2_gl_h

  1707.     gsm_h

  1708.     io_h

  1709.     mach_mach_time_h

  1710.     machine_ioctl_bt848_h

  1711.     machine_ioctl_meteor_h

  1712.     malloc_h

  1713.     openjpeg_1_5_openjpeg_h

  1714.     OpenGL_gl3_h

  1715.     poll_h

  1716.     sndio_h

  1717.     soundcard_h

  1718.     sys_mman_h

  1719.     sys_param_h

  1720.     sys_resource_h

  1721.     sys_select_h

  1722.     sys_soundcard_h

  1723.     sys_time_h

  1724.     sys_un_h

  1725.     sys_videoio_h

  1726.     termios_h

  1727.     udplite_h

  1728.     unistd_h

  1729.     valgrind_valgrind_h

  1730.     windows_h

  1731.     winsock2_h

  1732. "

  1733. 

  1734. INTRINSICS_LIST="

  1735.     intrinsics_neon

  1736. "

  1737. 

  1738. MATH_FUNCS="

  1739.     atanf

  1740.     atan2f

  1741.     cbrt

  1742.     cbrtf

  1743.     copysign

  1744.     cosf

  1745.     erf

  1746.     exp2

  1747.     exp2f

  1748.     expf

  1749.     isinf

  1750.     isnan

  1751.     ldexpf

  1752.     llrint

  1753.     llrintf

  1754.     log2

  1755.     log2f

  1756.     log10f

  1757.     lrint

  1758.     lrintf

  1759.     powf

  1760.     rint

  1761.     round

  1762.     roundf

  1763.     sinf

  1764.     trunc

  1765.     truncf

  1766. "

  1767. 

  1768. SYSTEM_FUNCS="

  1769.     access

  1770.     aligned_malloc

  1771.     clock_gettime

  1772.     closesocket

  1773.     CommandLineToArgvW

  1774.     CoTaskMemFree

  1775.     CryptGenRandom

  1776.     dlopen

  1777.     fcntl

  1778.     flt_lim

  1779.     fork

  1780.     getaddrinfo

  1781.     gethrtime

  1782.     getopt

  1783.     GetProcessAffinityMask

  1784.     GetProcessMemoryInfo

  1785.     GetProcessTimes

  1786.     getrusage

  1787.     getservbyport

  1788.     GetSystemTimeAsFileTime

  1789.     gettimeofday

  1790.     glob

  1791.     glXGetProcAddress

  1792.     gmtime_r

  1793.     inet_aton

  1794.     isatty

  1795.     jack_port_get_latency_range

  1796.     kbhit

  1797.     localtime_r

  1798.     lstat

  1799.     lzo1x_999_compress

  1800.     mach_absolute_time

  1801.     MapViewOfFile

  1802.     memalign

  1803.     mkstemp

  1804.     mmap

  1805.     mprotect

  1806.     nanosleep

  1807.     PeekNamedPipe

  1808.     posix_memalign

  1809.     pthread_cancel

  1810.     sched_getaffinity

  1811.     SetConsoleTextAttribute

  1812.     SetConsoleCtrlHandler

  1813.     setmode

  1814.     setrlimit

  1815.     Sleep

  1816.     strerror_r

  1817.     sysconf

  1818.     sysctl

  1819.     usleep

  1820.     VirtualAlloc

  1821.     wglGetProcAddress

  1822. "

  1823. 

  1824. TOOLCHAIN_FEATURES="

  1825.     as_dn_directive

  1826.     as_func

  1827.     as_object_arch

  1828.     asm_mod_q

  1829.     attribute_may_alias

  1830.     attribute_packed

  1831.     ebp_available

  1832.     ebx_available

  1833.     gnu_as

  1834.     gnu_windres

  1835.     ibm_asm

  1836.     inline_asm_labels

  1837.     inline_asm_nonlocal_labels

  1838.     inline_asm_direct_symbol_refs

  1839.     pragma_deprecated

  1840.     rsync_contimeout

  1841.     symver_asm_label

  1842.     symver_gnu_asm

  1843.     vfp_args

  1844.     xform_asm

  1845.     xmm_clobbers

  1846. "

  1847. 

  1848. TYPES_LIST="

  1849.     CONDITION_VARIABLE_Ptr

  1850.     socklen_t

  1851.     struct_addrinfo

  1852.     struct_dcadec_exss_info_matrix_encoding

  1853.     struct_group_source_req

  1854.     struct_ip_mreq_source

  1855.     struct_ipv6_mreq

  1856.     struct_pollfd

  1857.     struct_rusage_ru_maxrss

  1858.     struct_sctp_event_subscribe

  1859.     struct_sockaddr_in6

  1860.     struct_sockaddr_sa_len

  1861.     struct_sockaddr_storage

  1862.     struct_stat_st_mtim_tv_nsec

  1863.     struct_v4l2_frmivalenum_discrete

  1864. "

  1865. 

  1866. HAVE_LIST="

  1867.     $ARCH_EXT_LIST

  1868.     $(add_suffix _external $ARCH_EXT_LIST)

  1869.     $(add_suffix _inline   $ARCH_EXT_LIST)

  1870.     $ARCH_FEATURES

  1871.     $ATOMICS_LIST

  1872.     $BUILTIN_LIST

  1873.     $HAVE_LIST_CMDLINE

  1874.     $HAVE_LIST_PUB

  1875.     $HEADERS_LIST

  1876.     $INTRINSICS_LIST

  1877.     $MATH_FUNCS

  1878.     $SYSTEM_FUNCS

  1879.     $THREADS_LIST

  1880.     $TOOLCHAIN_FEATURES

  1881.     $TYPES_LIST

  1882.     atomics_native

  1883.     dos_paths

  1884.     dxva2api_cobj

  1885.     dxva2_lib

  1886.     libc_msvcrt

  1887.     libdc1394_1

  1888.     libdc1394_2

  1889.     makeinfo

  1890.     makeinfo_html

  1891.     perl

  1892.     pod2man

  1893.     sdl

  1894.     section_data_rel_ro

  1895.     texi2html

  1896.     threads

  1897.     vaapi_x11

  1898.     vdpau_x11

  1899.     xlib

  1900. "

  1901. 

  1902. # options emitted with CONFIG_ prefix but not available on the command line

  1903. CONFIG_EXTRA="

  1904.     aandcttables

  1905.     ac3dsp

  1906.     audio_frame_queue

  1907.     audiodsp

  1908.     blockdsp

  1909.     bswapdsp

  1910.     cabac

  1911.     dvprofile

  1912.     exif

  1913.     faandct

  1914.     faanidct

  1915.     fdctdsp

  1916.     flacdsp

  1917.     fmtconvert

  1918.     frame_thread_encoder

  1919.     g722dsp

  1920.     gcrypt

  1921.     gmp

  1922.     golomb

  1923.     gplv3

  1924.     h263dsp

  1925.     h264chroma

  1926.     h264dsp

  1927.     h264pred

  1928.     h264qpel

  1929.     hpeldsp

  1930.     huffman

  1931.     huffyuvdsp

  1932.     huffyuvencdsp

  1933.     idctdsp

  1934.     iirfilter

  1935.     imdct15

  1936.     intrax8

  1937.     ividsp

  1938.     jpegtables

  1939.     libx262

  1940.     lgplv3

  1941.     llauddsp

  1942.     llviddsp

  1943.     lpc

  1944.     lzf

  1945.     me_cmp

  1946.     mpeg_er

  1947.     mpegaudio

  1948.     mpegaudiodsp

  1949.     mpegvideo

  1950.     mpegvideoenc

  1951.     mss34dsp

  1952.     pixblockdsp

  1953.     qpeldsp

  1954.     qsv

  1955.     qsvdec

  1956.     qsvenc

  1957.     rangecoder

  1958.     riffdec

  1959.     riffenc

  1960.     rtpdec

  1961.     rtpenc_chain

  1962.     rv34dsp

  1963.     sinewin

  1964.     snappy

  1965.     startcode

  1966.     texturedsp

  1967.     texturedspenc

  1968.     tpeldsp

  1969.     videodsp

  1970.     vp3dsp

  1971.     vp56dsp

  1972.     vp8dsp

  1973.     wma_freqs

  1974.     wmv2dsp

  1975. "

  1976. 

  1977. CMDLINE_SELECT="

  1978.     $ARCH_EXT_LIST

  1979.     $CONFIG_LIST

  1980.     $HAVE_LIST_CMDLINE

  1981.     $THREADS_LIST

  1982.     asm

  1983.     cross_compile

  1984.     debug

  1985.     extra_warnings

  1986.     logging

  1987.     lto

  1988.     optimizations

  1989.     rpath

  1990.     stripping

  1991. "

  1992. 

  1993. PATHS_LIST="

  1994.     bindir

  1995.     datadir

  1996.     docdir

  1997.     incdir

  1998.     libdir

  1999.     mandir

  2000.     pkgconfigdir

  2001.     prefix

  2002.     shlibdir

  2003. "

  2004. 

  2005. CMDLINE_SET="

  2006.     $PATHS_LIST

  2007.     ar

  2008.     arch

  2009.     as

  2010.     assert_level

  2011.     build_suffix

  2012.     cc

  2013.     cpu

  2014.     cross_prefix

  2015.     custom_allocator

  2016.     cxx

  2017.     dep_cc

  2018.     doxygen

  2019.     env

  2020.     extra_version

  2021.     gas

  2022.     host_cc

  2023.     host_cflags

  2024.     host_ld

  2025.     host_ldflags

  2026.     host_libs

  2027.     host_os

  2028.     install

  2029.     ld

  2030.     logfile

  2031.     malloc_prefix

  2032.     nm

  2033.     optflags

  2034.     pkg_config

  2035.     pkg_config_flags

  2036.     progs_suffix

  2037.     random_seed

  2038.     ranlib

  2039.     samples

  2040.     strip

  2041.     sws_max_filter_size

  2042.     sysinclude

  2043.     sysroot

  2044.     target_exec

  2045.     target_os

  2046.     target_path

  2047.     target_samples

  2048.     tempprefix

  2049.     toolchain

  2050.     valgrind

  2051.     yasmexe

  2052. "

  2053. 

  2054. CMDLINE_APPEND="

  2055.     extra_cflags

  2056.     extra_cxxflags

  2057.     host_cppflags

  2058. "

  2059. 

  2060. # code dependency declarations

  2061. 

  2062. # architecture extensions

  2063. 

  2064. armv5te_deps="arm"

  2065. armv6_deps="arm"

  2066. armv6t2_deps="arm"

  2067. armv8_deps="aarch64"

  2068. neon_deps_any="aarch64 arm"

  2069. intrinsics_neon_deps="neon"

  2070. vfp_deps_any="aarch64 arm"

  2071. vfpv3_deps="vfp"

  2072. setend_deps="arm"

  2073. 

  2074. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2075. 

  2076. mipsfpu_deps="mips"

  2077. mipsdspr1_deps="mips"

  2078. mipsdspr2_deps="mips"

  2079. mips32r2_deps="mips"

  2080. mips32r5_deps="mips"

  2081. mips64r6_deps="mips"

  2082. msa_deps="mips"

  2083. mmi_deps="mips"

  2084. 

  2085. altivec_deps="ppc"

  2086. dcbzl_deps="ppc"

  2087. ldbrx_deps="ppc"

  2088. ppc4xx_deps="ppc"

  2089. vsx_deps="altivec"

  2090. power8_deps="vsx"

  2091. 

  2092. cpunop_deps="i686"

  2093. x86_64_select="i686"

  2094. x86_64_suggest="fast_cmov"

  2095. 

  2096. amd3dnow_deps="mmx"

  2097. amd3dnowext_deps="amd3dnow"

  2098. i686_deps="x86"

  2099. mmx_deps="x86"

  2100. mmxext_deps="mmx"

  2101. sse_deps="mmxext"

  2102. sse2_deps="sse"

  2103. sse3_deps="sse2"

  2104. ssse3_deps="sse3"

  2105. sse4_deps="ssse3"

  2106. sse42_deps="sse4"

  2107. avx_deps="sse42"

  2108. xop_deps="avx"

  2109. fma3_deps="avx"

  2110. fma4_deps="avx"

  2111. avx2_deps="avx"

  2112. 

  2113. mmx_external_deps="yasm"

  2114. mmx_inline_deps="inline_asm"

  2115. mmx_suggest="mmx_external mmx_inline"

  2116. 

  2117. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2118.     eval dep=\$${ext}_deps

  2119.     eval ${ext}_external_deps='"${dep}_external"'

  2120.     eval ${ext}_inline_deps='"${dep}_inline"'

  2121.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2122. done

  2123. 

  2124. aligned_stack_if_any="aarch64 ppc x86"

  2125. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2126. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2127. fast_unaligned_if_any="aarch64 ppc x86"

  2128. simd_align_16_if_any="altivec neon sse"

  2129. 

  2130. # system capabilities

  2131. symver_if_any="symver_asm_label symver_gnu_asm"

  2132. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2133. 

  2134. # threading support

  2135. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2136. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2137. atomics_win32_if="MemoryBarrier"

  2138. atomics_native_if_any="$ATOMICS_LIST"

  2139. w32threads_deps="atomics_native"

  2140. threads_if_any="$THREADS_LIST"

  2141. 

  2142. # subsystems

  2143. dct_select="rdft"

  2144. error_resilience_select="me_cmp"

  2145. faandct_deps="faan fdctdsp"

  2146. faanidct_deps="faan idctdsp"

  2147. frame_thread_encoder_deps="encoders threads"

  2148. intrax8_select="error_resilience"

  2149. mdct_select="fft"

  2150. rdft_select="fft"

  2151. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2152. mpeg_er_select="error_resilience"

  2153. mpegaudio_select="mpegaudiodsp"

  2154. mpegaudiodsp_select="dct"

  2155. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2156. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2157. qsvdec_select="qsv"

  2158. qsvenc_select="qsv"

  2159. 

  2160. # decoders / encoders

  2161. aac_decoder_select="imdct15 mdct sinewin"

  2162. aac_fixed_decoder_select="mdct sinewin"

  2163. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2164. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2165. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2166. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2167. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2168. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2169. adpcm_g722_decoder_select="g722dsp"

  2170. adpcm_g722_encoder_select="g722dsp"

  2171. aic_decoder_select="golomb idctdsp"

  2172. alac_encoder_select="lpc"

  2173. als_decoder_select="bswapdsp"

  2174. amrnb_decoder_select="lsp"

  2175. amrwb_decoder_select="lsp"

  2176. amv_decoder_select="sp5x_decoder exif"

  2177. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2178. ape_decoder_select="bswapdsp llauddsp"

  2179. apng_decoder_select="zlib"

  2180. apng_encoder_select="huffyuvencdsp zlib"

  2181. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2182. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2183. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2184. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2185. atrac1_decoder_select="mdct sinewin"

  2186. atrac3_decoder_select="mdct"

  2187. atrac3p_decoder_select="mdct sinewin"

  2188. avrn_decoder_select="exif jpegtables"

  2189. bink_decoder_select="blockdsp hpeldsp"

  2190. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2191. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2192. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2193. cllc_decoder_select="bswapdsp"

  2194. comfortnoise_encoder_select="lpc"

  2195. cook_decoder_select="audiodsp mdct sinewin"

  2196. cscd_decoder_select="lzo"

  2197. cscd_decoder_suggest="zlib"

  2198. dca_decoder_select="fmtconvert mdct"

  2199. dds_decoder_select="texturedsp"

  2200. dirac_decoder_select="dwt golomb videodsp mpegvideoenc"

  2201. dnxhd_decoder_select="blockdsp idctdsp"

  2202. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2203. dvvideo_decoder_select="dvprofile idctdsp"

  2204. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2205. dxa_decoder_select="zlib"

  2206. dxv_decoder_select="lzf texturedsp"

  2207. eac3_decoder_select="ac3_decoder"

  2208. eac3_encoder_select="ac3_encoder"

  2209. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2210. eatgq_decoder_select="aandcttables"

  2211. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"

  2212. exr_decoder_select="zlib"

  2213. ffv1_decoder_select="golomb rangecoder"

  2214. ffv1_encoder_select="rangecoder"

  2215. ffvhuff_decoder_select="huffyuv_decoder"

  2216. ffvhuff_encoder_select="huffyuv_encoder"

  2217. fic_decoder_select="golomb"

  2218. flac_decoder_select="flacdsp golomb"

  2219. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2220. flashsv_decoder_select="zlib"

  2221. flashsv_encoder_select="zlib"

  2222. flashsv2_encoder_select="zlib"

  2223. flashsv2_decoder_select="zlib"

  2224. flv_decoder_select="h263_decoder"

  2225. flv_encoder_select="h263_encoder"

  2226. fourxm_decoder_select="blockdsp bswapdsp"

  2227. fraps_decoder_select="bswapdsp huffman"

  2228. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2229. g729_decoder_select="audiodsp"

  2230. h261_decoder_select="mpegvideo"

  2231. h261_encoder_select="aandcttables mpegvideoenc"

  2232. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2233. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2234. h263i_decoder_select="h263_decoder"

  2235. h263p_decoder_select="h263_decoder"

  2236. h263p_encoder_select="h263_encoder"

  2237. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"

  2238. h264_decoder_suggest="error_resilience"

  2239. h264_qsv_decoder_deps="libmfx"

  2240. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2241. h264_qsv_encoder_deps="libmfx"

  2242. h264_qsv_encoder_select="qsvenc"

  2243. hap_decoder_select="snappy texturedsp"

  2244. hap_encoder_deps="libsnappy"

  2245. hap_encoder_select="texturedspenc"

  2246. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2247. hevc_qsv_encoder_deps="libmfx"

  2248. hevc_qsv_decoder_deps="libmfx"

  2249. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2250. hevc_qsv_encoder_select="qsvenc"

  2251. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2252. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2253. iac_decoder_select="imc_decoder"

  2254. imc_decoder_select="bswapdsp fft mdct sinewin"

  2255. indeo3_decoder_select="hpeldsp"

  2256. indeo4_decoder_select="ividsp"

  2257. indeo5_decoder_select="ividsp"

  2258. interplay_video_decoder_select="hpeldsp"

  2259. jpegls_decoder_select="golomb mjpeg_decoder"

  2260. jpegls_encoder_select="golomb"

  2261. jv_decoder_select="blockdsp"

  2262. lagarith_decoder_select="huffyuvdsp"

  2263. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2264. loco_decoder_select="golomb"

  2265. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2266. metasound_decoder_select="lsp mdct sinewin"

  2267. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2268. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2269. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2270. mjpegb_decoder_select="mjpeg_decoder"

  2271. mlp_decoder_select="mlp_parser"

  2272. motionpixels_decoder_select="bswapdsp"

  2273. mp1_decoder_select="mpegaudio"

  2274. mp1float_decoder_select="mpegaudio"

  2275. mp2_decoder_select="mpegaudio"

  2276. mp2float_decoder_select="mpegaudio"

  2277. mp3_decoder_select="mpegaudio"

  2278. mp3adu_decoder_select="mpegaudio"

  2279. mp3adufloat_decoder_select="mpegaudio"

  2280. mp3float_decoder_select="mpegaudio"

  2281. mp3on4_decoder_select="mpegaudio"

  2282. mp3on4float_decoder_select="mpegaudio"

  2283. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2284. mpc8_decoder_select="mpegaudiodsp"

  2285. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2286. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2287. mpegvideo_decoder_select="mpegvideo"

  2288. mpeg1video_decoder_select="mpegvideo"

  2289. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2290. mpeg2video_decoder_select="mpegvideo"

  2291. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2292. mpeg2_qsv_decoder_deps="libmfx"

  2293. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2294. mpeg2_qsv_encoder_deps="libmfx"

  2295. mpeg2_qsv_encoder_select="qsvenc"

  2296. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2297. mpeg4_encoder_select="h263_encoder"

  2298. msa1_decoder_select="mss34dsp"

  2299. msmpeg4v1_decoder_select="h263_decoder"

  2300. msmpeg4v2_decoder_select="h263_decoder"

  2301. msmpeg4v2_encoder_select="h263_encoder"

  2302. msmpeg4v3_decoder_select="h263_decoder"

  2303. msmpeg4v3_encoder_select="h263_encoder"

  2304. mss2_decoder_select="vc1_decoder"

  2305. mts2_decoder_select="mss34dsp"

  2306. mxpeg_decoder_select="mjpeg_decoder"

  2307. nellymoser_decoder_select="mdct sinewin"

  2308. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2309. nuv_decoder_select="idctdsp lzo"

  2310. on2avc_decoder_select="mdct"

  2311. opus_decoder_deps="swresample"

  2312. opus_decoder_select="imdct15"

  2313. png_decoder_select="zlib"

  2314. png_encoder_select="huffyuvencdsp zlib"

  2315. prores_decoder_select="blockdsp idctdsp"

  2316. prores_encoder_select="fdctdsp"

  2317. qcelp_decoder_select="lsp"

  2318. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2319. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2320. ra_144_decoder_select="audiodsp"

  2321. ralf_decoder_select="golomb"

  2322. rawvideo_decoder_select="bswapdsp"

  2323. rtjpeg_decoder_select="me_cmp"

  2324. rv10_decoder_select="h263_decoder"

  2325. rv10_encoder_select="h263_encoder"

  2326. rv20_decoder_select="h263_decoder"

  2327. rv20_encoder_select="h263_encoder"

  2328. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2329. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2330. screenpresso_decoder_deps="zlib"

  2331. shorten_decoder_select="golomb"

  2332. sipr_decoder_select="lsp"

  2333. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2334. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2335. sonic_decoder_select="golomb rangecoder"

  2336. sonic_encoder_select="golomb rangecoder"

  2337. sonic_ls_encoder_select="golomb rangecoder"

  2338. sp5x_decoder_select="mjpeg_decoder"

  2339. svq1_decoder_select="hpeldsp"

  2340. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2341. svq3_decoder_select="h264_decoder hpeldsp tpeldsp"

  2342. svq3_decoder_suggest="zlib"

  2343. tak_decoder_select="audiodsp"

  2344. tdsc_decoder_select="zlib mjpeg_decoder"

  2345. theora_decoder_select="vp3_decoder"

  2346. thp_decoder_select="mjpeg_decoder"

  2347. tiff_decoder_suggest="zlib lzma"

  2348. tiff_encoder_suggest="zlib"

  2349. truehd_decoder_select="mlp_parser"

  2350. truemotion2_decoder_select="bswapdsp"

  2351. truespeech_decoder_select="bswapdsp"

  2352. tscc_decoder_select="zlib"

  2353. twinvq_decoder_select="mdct lsp sinewin"

  2354. txd_decoder_select="texturedsp"

  2355. utvideo_decoder_select="bswapdsp"

  2356. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2357. vble_decoder_select="huffyuvdsp"

  2358. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"

  2359. vc1image_decoder_select="vc1_decoder"

  2360. vc1_qsv_decoder_deps="libmfx"

  2361. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2362. vorbis_decoder_select="mdct"

  2363. vorbis_encoder_select="mdct"

  2364. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2365. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2366. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2367. vp6a_decoder_select="vp6_decoder"

  2368. vp6f_decoder_select="vp6_decoder"

  2369. vp7_decoder_select="h264pred videodsp vp8dsp"

  2370. vp8_decoder_select="h264pred videodsp vp8dsp"

  2371. vp9_decoder_select="videodsp vp9_parser"

  2372. webp_decoder_select="vp8_decoder"

  2373. wmalossless_decoder_select="llauddsp"

  2374. wmapro_decoder_select="mdct sinewin wma_freqs"

  2375. wmav1_decoder_select="mdct sinewin wma_freqs"

  2376. wmav1_encoder_select="mdct sinewin wma_freqs"

  2377. wmav2_decoder_select="mdct sinewin wma_freqs"

  2378. wmav2_encoder_select="mdct sinewin wma_freqs"

  2379. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2380. wmv1_decoder_select="h263_decoder"

  2381. wmv1_encoder_select="h263_encoder"

  2382. wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2383. wmv2_encoder_select="h263_encoder wmv2dsp"

  2384. wmv3_decoder_select="vc1_decoder"

  2385. wmv3image_decoder_select="wmv3_decoder"

  2386. zerocodec_decoder_select="zlib"

  2387. zlib_decoder_select="zlib"

  2388. zlib_encoder_select="zlib"

  2389. zmbv_decoder_select="zlib"

  2390. zmbv_encoder_select="zlib"

  2391. 

  2392. # hardware accelerators

  2393. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2394. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2395. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2396. vaapi_deps="va_va_h"

  2397. vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads CoreServices_CoreServices_h"

  2398. vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore -framework CoreServices"

  2399. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2400. videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads CoreServices_CoreServices_h"

  2401. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreServices"

  2402. xvmc_deps="X11_extensions_XvMClib_h"

  2403. 

  2404. h263_vaapi_hwaccel_deps="vaapi"

  2405. h263_vaapi_hwaccel_select="h263_decoder"

  2406. h263_vdpau_hwaccel_deps="vdpau"

  2407. h263_vdpau_hwaccel_select="h263_decoder"

  2408. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2409. h263_videotoolbox_hwaccel_select="h263_decoder"

  2410. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2411. h264_d3d11va_hwaccel_deps="d3d11va"

  2412. h264_d3d11va_hwaccel_select="h264_decoder"

  2413. h264_dxva2_hwaccel_deps="dxva2"

  2414. h264_dxva2_hwaccel_select="h264_decoder"

  2415. h264_mmal_decoder_deps="mmal"

  2416. h264_mmal_hwaccel_deps="mmal"

  2417. h264_mmal_decoder_select="h264_decoder"

  2418. h264_mmal_encoder_deps="mmal"

  2419. h264_qsv_hwaccel_deps="libmfx"

  2420. h264_vaapi_hwaccel_deps="vaapi"

  2421. h264_vaapi_hwaccel_select="h264_decoder"

  2422. h264_vda_decoder_deps="vda"

  2423. h264_vda_decoder_select="h264_decoder"

  2424. h264_vda_hwaccel_deps="vda"

  2425. h264_vda_hwaccel_select="h264_decoder"

  2426. h264_vda_old_hwaccel_deps="vda"

  2427. h264_vda_old_hwaccel_select="h264_decoder"

  2428. h264_vdpau_decoder_deps="vdpau"

  2429. h264_vdpau_decoder_select="h264_decoder"

  2430. h264_vdpau_hwaccel_deps="vdpau"

  2431. h264_vdpau_hwaccel_select="h264_decoder"

  2432. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2433. h264_videotoolbox_hwaccel_select="h264_decoder"

  2434. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2435. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2436. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2437. hevc_dxva2_hwaccel_select="hevc_decoder"

  2438. hevc_qsv_hwaccel_deps="libmfx"

  2439. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2440. hevc_vaapi_hwaccel_select="hevc_decoder"

  2441. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2442. hevc_vdpau_hwaccel_select="hevc_decoder"

  2443. mpeg_vdpau_decoder_deps="vdpau"

  2444. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2445. mpeg_xvmc_hwaccel_deps="xvmc"

  2446. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2447. mpeg1_vdpau_decoder_deps="vdpau"

  2448. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2449. mpeg1_vdpau_hwaccel_deps="vdpau"

  2450. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2451. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2452. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2453. mpeg1_xvmc_hwaccel_deps="xvmc"

  2454. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2455. mpeg2_crystalhd_decoder_select="crystalhd"

  2456. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2457. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2458. mpeg2_dxva2_hwaccel_deps="dxva2"

  2459. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2460. mpeg2_qsv_hwaccel_deps="libmfx"

  2461. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2462. mpeg2_vaapi_hwaccel_deps="vaapi"

  2463. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2464. mpeg2_vdpau_hwaccel_deps="vdpau"

  2465. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2466. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2467. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2468. mpeg2_xvmc_hwaccel_deps="xvmc"

  2469. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2470. mpeg4_crystalhd_decoder_select="crystalhd"

  2471. mpeg4_vaapi_hwaccel_deps="vaapi"

  2472. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2473. mpeg4_vdpau_decoder_deps="vdpau"

  2474. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2475. mpeg4_vdpau_hwaccel_deps="vdpau"

  2476. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2477. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2478. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2479. msmpeg4_crystalhd_decoder_select="crystalhd"

  2480. vc1_crystalhd_decoder_select="crystalhd"

  2481. vc1_d3d11va_hwaccel_deps="d3d11va"

  2482. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2483. vc1_dxva2_hwaccel_deps="dxva2"

  2484. vc1_dxva2_hwaccel_select="vc1_decoder"

  2485. vc1_vaapi_hwaccel_deps="vaapi"

  2486. vc1_vaapi_hwaccel_select="vc1_decoder"

  2487. vc1_vdpau_decoder_deps="vdpau"

  2488. vc1_vdpau_decoder_select="vc1_decoder"

  2489. vc1_vdpau_hwaccel_deps="vdpau"

  2490. vc1_vdpau_hwaccel_select="vc1_decoder"

  2491. vc1_qsv_hwaccel_deps="libmfx"

  2492. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2493. wmv3_crystalhd_decoder_select="crystalhd"

  2494. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2495. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2496. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2497. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2498. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2499. 

  2500. # parsers

  2501. h264_parser_select="h264_decoder"

  2502. hevc_parser_select="golomb"

  2503. mpegvideo_parser_select="mpegvideo"

  2504. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2505. vc1_parser_select="mpegvideo startcode vc1_decoder"

  2506. 

  2507. # bitstream_filters

  2508. mjpeg2jpeg_bsf_select="jpegtables"

  2509. 

  2510. # external libraries

  2511. libaacplus_encoder_deps="libaacplus"

  2512. libcelt_decoder_deps="libcelt"

  2513. libdcadec_decoder_deps="libdcadec"

  2514. libfaac_encoder_deps="libfaac"

  2515. libfaac_encoder_select="audio_frame_queue"

  2516. libfdk_aac_decoder_deps="libfdk_aac"

  2517. libfdk_aac_encoder_deps="libfdk_aac"

  2518. libfdk_aac_encoder_select="audio_frame_queue"

  2519. libgme_demuxer_deps="libgme"

  2520. libgsm_decoder_deps="libgsm"

  2521. libgsm_encoder_deps="libgsm"

  2522. libgsm_ms_decoder_deps="libgsm"

  2523. libgsm_ms_encoder_deps="libgsm"

  2524. libilbc_decoder_deps="libilbc"

  2525. libilbc_encoder_deps="libilbc"

  2526. libkvazaar_encoder_deps="libkvazaar"

  2527. libmodplug_demuxer_deps="libmodplug"

  2528. libmp3lame_encoder_deps="libmp3lame"

  2529. libmp3lame_encoder_select="audio_frame_queue"

  2530. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2531. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2532. libopencore_amrnb_encoder_select="audio_frame_queue"

  2533. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2534. libopenh264_encoder_deps="libopenh264"

  2535. libopenjpeg_decoder_deps="libopenjpeg"

  2536. libopenjpeg_encoder_deps="libopenjpeg"

  2537. libopus_decoder_deps="libopus"

  2538. libopus_encoder_deps="libopus"

  2539. libopus_encoder_select="audio_frame_queue"

  2540. libquvi_demuxer_deps="libquvi"

  2541. libschroedinger_decoder_deps="libschroedinger"

  2542. libschroedinger_encoder_deps="libschroedinger"

  2543. libshine_encoder_deps="libshine"

  2544. libshine_encoder_select="audio_frame_queue"

  2545. libspeex_decoder_deps="libspeex"

  2546. libspeex_encoder_deps="libspeex"

  2547. libspeex_encoder_select="audio_frame_queue"

  2548. libstagefright_h264_decoder_deps="libstagefright_h264"

  2549. libtheora_encoder_deps="libtheora"

  2550. libtwolame_encoder_deps="libtwolame"

  2551. libvo_aacenc_encoder_deps="libvo_aacenc"

  2552. libvo_aacenc_encoder_select="audio_frame_queue"

  2553. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2554. libvorbis_decoder_deps="libvorbis"

  2555. libvorbis_encoder_deps="libvorbis"

  2556. libvorbis_encoder_select="audio_frame_queue"

  2557. libvpx_vp8_decoder_deps="libvpx"

  2558. libvpx_vp8_encoder_deps="libvpx"

  2559. libvpx_vp9_decoder_deps="libvpx"

  2560. libvpx_vp9_encoder_deps="libvpx"

  2561. libwavpack_encoder_deps="libwavpack"

  2562. libwebp_encoder_deps="libwebp"

  2563. libwebp_anim_encoder_deps="libwebp"

  2564. libx262_encoder_deps="libx262"

  2565. libx264_encoder_deps="libx264"

  2566. libx264rgb_encoder_deps="libx264"

  2567. libx264rgb_encoder_select="libx264_encoder"

  2568. libx265_encoder_deps="libx265"

  2569. libxavs_encoder_deps="libxavs"

  2570. libxvid_encoder_deps="libxvid"

  2571. libutvideo_decoder_deps="libutvideo"

  2572. libutvideo_encoder_deps="libutvideo"

  2573. libzvbi_teletext_decoder_deps="libzvbi"

  2574. nvenc_encoder_deps="nvenc"

  2575. nvenc_h264_encoder_deps="nvenc"

  2576. nvenc_hevc_encoder_deps="nvenc"

  2577. 

  2578. # demuxers / muxers

  2579. ac3_demuxer_select="ac3_parser"

  2580. asf_demuxer_select="riffdec"

  2581. asf_o_demuxer_select="riffdec"

  2582. asf_muxer_select="riffenc"

  2583. asf_stream_muxer_select="asf_muxer"

  2584. avi_demuxer_select="riffdec exif"

  2585. avi_muxer_select="riffenc"

  2586. avisynth_demuxer_deps="avisynth"

  2587. avisynth_demuxer_select="riffdec"

  2588. caf_demuxer_select="riffdec"

  2589. dash_muxer_select="mp4_muxer"

  2590. dirac_demuxer_select="dirac_parser"

  2591. dts_demuxer_select="dca_parser"

  2592. dtshd_demuxer_select="dca_parser"

  2593. dv_demuxer_select="dvprofile"

  2594. dv_muxer_select="dvprofile"

  2595. dxa_demuxer_select="riffdec"

  2596. eac3_demuxer_select="ac3_parser"

  2597. f4v_muxer_select="mov_muxer"

  2598. flac_demuxer_select="flac_parser"

  2599. hds_muxer_select="flv_muxer"

  2600. hls_muxer_select="mpegts_muxer"

  2601. image2_alias_pix_demuxer_select="image2_demuxer"

  2602. image2_brender_pix_demuxer_select="image2_demuxer"

  2603. ipod_muxer_select="mov_muxer"

  2604. ismv_muxer_select="mov_muxer"

  2605. libnut_demuxer_deps="libnut"

  2606. libnut_muxer_deps="libnut"

  2607. matroska_audio_muxer_select="matroska_muxer"

  2608. matroska_demuxer_select="riffdec"

  2609. matroska_demuxer_suggest="bzlib lzo zlib"

  2610. matroska_muxer_select="riffenc"

  2611. mmf_muxer_select="riffenc"

  2612. mov_demuxer_select="riffdec"

  2613. mov_demuxer_suggest="zlib"

  2614. mov_muxer_select="riffenc rtpenc_chain"

  2615. mp3_demuxer_select="mpegaudio_parser"

  2616. mp4_muxer_select="mov_muxer"

  2617. mpegts_muxer_select="adts_muxer latm_muxer"

  2618. mpegtsraw_demuxer_select="mpegts_demuxer"

  2619. mxf_d10_muxer_select="mxf_muxer"

  2620. mxf_opatom_muxer_select="mxf_muxer"

  2621. nut_muxer_select="riffenc"

  2622. nuv_demuxer_select="riffdec"

  2623. oga_muxer_select="ogg_muxer"

  2624. ogg_demuxer_select="golomb"

  2625. opus_muxer_select="ogg_muxer"

  2626. psp_muxer_select="mov_muxer"

  2627. rtp_demuxer_select="sdp_demuxer"

  2628. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"

  2629. rtsp_demuxer_select="http_protocol rtpdec"

  2630. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2631. sap_demuxer_select="sdp_demuxer"

  2632. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2633. sdp_demuxer_select="rtpdec"

  2634. smoothstreaming_muxer_select="ismv_muxer"

  2635. spdif_muxer_select="aac_parser"

  2636. spx_muxer_select="ogg_muxer"

  2637. tak_demuxer_select="tak_parser"

  2638. tg2_muxer_select="mov_muxer"

  2639. tgp_muxer_select="mov_muxer"

  2640. vobsub_demuxer_select="mpegps_demuxer"

  2641. w64_demuxer_select="wav_demuxer"

  2642. w64_muxer_select="wav_muxer"

  2643. wav_demuxer_select="riffdec"

  2644. wav_muxer_select="riffenc"

  2645. webm_muxer_select="riffenc"

  2646. wtv_demuxer_select="riffdec"

  2647. wtv_muxer_select="riffenc"

  2648. xmv_demuxer_select="riffdec"

  2649. xwma_demuxer_select="riffdec"

  2650. 

  2651. # indevs / outdevs

  2652. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2653. alsa_outdev_deps="alsa_asoundlib_h"

  2654. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2655. avfoundation_indev_select="avfoundation"

  2656. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2657. caca_outdev_deps="libcaca"

  2658. decklink_outdev_deps="decklink pthreads"

  2659. decklink_outdev_extralibs="-lstdc++"

  2660. decklink_indev_deps="decklink pthreads"

  2661. decklink_indev_extralibs="-lstdc++"

  2662. dshow_indev_deps="IBaseFilter"

  2663. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2664. dv1394_indev_deps="dv1394"

  2665. dv1394_indev_select="dv_demuxer"

  2666. fbdev_indev_deps="linux_fb_h"

  2667. fbdev_outdev_deps="linux_fb_h"

  2668. gdigrab_indev_deps="CreateDIBSection"

  2669. gdigrab_indev_extralibs="-lgdi32"

  2670. gdigrab_indev_select="bmp_decoder"

  2671. iec61883_indev_deps="libiec61883"

  2672. jack_indev_deps="jack_jack_h sem_timedwait"

  2673. lavfi_indev_deps="avfilter"

  2674. libcdio_indev_deps="libcdio"

  2675. libdc1394_indev_deps="libdc1394"

  2676. libv4l2_indev_deps="libv4l2"

  2677. openal_indev_deps="openal"

  2678. opengl_outdev_deps="opengl"

  2679. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2680. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2681. pulse_indev_deps="libpulse"

  2682. pulse_outdev_deps="libpulse"

  2683. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2684. qtkit_indev_select="qtkit"

  2685. sdl_outdev_deps="sdl"

  2686. sndio_indev_deps="sndio_h"

  2687. sndio_outdev_deps="sndio_h"

  2688. v4l_indev_deps="linux_videodev_h"

  2689. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2690. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2691. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2692. vfwcap_indev_extralibs="-lavicap32"

  2693. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2694. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2695. x11grab_indev_deps="x11grab"

  2696. x11grab_xcb_indev_deps="libxcb"

  2697. 

  2698. # protocols

  2699. async_protocol_deps="threads"

  2700. bluray_protocol_deps="libbluray"

  2701. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2702. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2703. ffrtmpcrypt_protocol_select="tcp_protocol"

  2704. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2705. ffrtmphttp_protocol_select="http_protocol"

  2706. ftp_protocol_select="tcp_protocol"

  2707. gopher_protocol_select="network"

  2708. http_protocol_select="tcp_protocol"

  2709. httpproxy_protocol_select="tcp_protocol"

  2710. https_protocol_select="tls_protocol"

  2711. icecast_protocol_select="http_protocol"

  2712. librtmp_protocol_deps="librtmp"

  2713. librtmpe_protocol_deps="librtmp"

  2714. librtmps_protocol_deps="librtmp"

  2715. librtmpt_protocol_deps="librtmp"

  2716. librtmpte_protocol_deps="librtmp"

  2717. libsmbclient_protocol_deps="libsmbclient gplv3"

  2718. libssh_protocol_deps="libssh"

  2719. mmsh_protocol_select="http_protocol"

  2720. mmst_protocol_select="network"

  2721. rtmp_protocol_deps="!librtmp_protocol"

  2722. rtmp_protocol_select="tcp_protocol"

  2723. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2724. rtmps_protocol_deps="!librtmp_protocol"

  2725. rtmps_protocol_select="tls_protocol"

  2726. rtmpt_protocol_select="ffrtmphttp_protocol"

  2727. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2728. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2729. rtp_protocol_select="udp_protocol"

  2730. sctp_protocol_deps="struct_sctp_event_subscribe"

  2731. sctp_protocol_select="network"

  2732. srtp_protocol_select="rtp_protocol"

  2733. tcp_protocol_select="network"

  2734. tls_gnutls_protocol_deps="gnutls !tls_securetransport_protocol"

  2735. tls_gnutls_protocol_select="tcp_protocol"

  2736. tls_openssl_protocol_deps="openssl !tls_securetransport_protocol !tls_gnutls_protocol"

  2737. tls_openssl_protocol_select="tcp_protocol"

  2738. tls_securetransport_protocol_deps="securetransport"

  2739. tls_securetransport_protocol_select="tcp_protocol"

  2740. tls_protocol_deps_any="tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  2741. udp_protocol_select="network"

  2742. udplite_protocol_select="network"

  2743. unix_protocol_deps="sys_un_h"

  2744. unix_protocol_select="network"

  2745. 

  2746. # filters

  2747. amovie_filter_deps="avcodec avformat"

  2748. aresample_filter_deps="swresample"

  2749. ass_filter_deps="libass"

  2750. asyncts_filter_deps="avresample"

  2751. atempo_filter_deps="avcodec"

  2752. atempo_filter_select="rdft"

  2753. azmq_filter_deps="libzmq"

  2754. blackframe_filter_deps="gpl"

  2755. boxblur_filter_deps="gpl"

  2756. bs2b_filter_deps="libbs2b"

  2757. colormatrix_filter_deps="gpl"

  2758. cover_rect_filter_deps="avcodec avformat gpl"

  2759. cropdetect_filter_deps="gpl"

  2760. delogo_filter_deps="gpl"

  2761. deshake_filter_select="pixelutils"

  2762. drawtext_filter_deps="libfreetype"

  2763. dynaudnorm_filter_deps="copysign erf"

  2764. ebur128_filter_deps="gpl"

  2765. eq_filter_deps="gpl"

  2766. fftfilt_filter_deps="avcodec"

  2767. fftfilt_filter_select="rdft"

  2768. flite_filter_deps="libflite"

  2769. find_rect_filter_deps="avcodec avformat gpl"

  2770. frei0r_filter_deps="frei0r dlopen"

  2771. frei0r_src_filter_deps="frei0r dlopen"

  2772. fspp_filter_deps="gpl"

  2773. geq_filter_deps="gpl"

  2774. histeq_filter_deps="gpl"

  2775. hqdn3d_filter_deps="gpl"

  2776. interlace_filter_deps="gpl"

  2777. kerndeint_filter_deps="gpl"

  2778. ladspa_filter_deps="ladspa dlopen"

  2779. mcdeint_filter_deps="avcodec gpl"

  2780. movie_filter_deps="avcodec avformat"

  2781. mpdecimate_filter_deps="gpl"

  2782. mpdecimate_filter_select="pixelutils"

  2783. mptestsrc_filter_deps="gpl"

  2784. negate_filter_deps="lut_filter"

  2785. perspective_filter_deps="gpl"

  2786. pp7_filter_deps="gpl"

  2787. ocr_filter_deps="libtesseract"

  2788. ocv_filter_deps="libopencv"

  2789. owdenoise_filter_deps="gpl"

  2790. pan_filter_deps="swresample"

  2791. phase_filter_deps="gpl"

  2792. pp_filter_deps="gpl postproc"

  2793. pullup_filter_deps="gpl"

  2794. removelogo_filter_deps="avcodec avformat swscale"

  2795. repeatfields_filter_deps="gpl"

  2796. resample_filter_deps="avresample"

  2797. rubberband_filter_deps="librubberband"

  2798. sab_filter_deps="gpl swscale"

  2799. scale_filter_deps="swscale"

  2800. scale2ref_filter_deps="swscale"

  2801. select_filter_select="pixelutils"

  2802. smartblur_filter_deps="gpl swscale"

  2803. showcqt_filter_deps="avcodec"

  2804. showcqt_filter_select="fft"

  2805. showfreqs_filter_deps="avcodec"

  2806. showfreqs_filter_select="fft"

  2807. showspectrum_filter_deps="avcodec"

  2808. showspectrum_filter_select="rdft"

  2809. spp_filter_deps="gpl avcodec"

  2810. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  2811. stereo3d_filter_deps="gpl"

  2812. subtitles_filter_deps="avformat avcodec libass"

  2813. super2xsai_filter_deps="gpl"

  2814. tinterlace_filter_deps="gpl"

  2815. vidstabdetect_filter_deps="libvidstab"

  2816. vidstabtransform_filter_deps="libvidstab"

  2817. pixfmts_super2xsai_test_deps="super2xsai_filter"

  2818. tinterlace_merge_test_deps="tinterlace_filter"

  2819. tinterlace_pad_test_deps="tinterlace_filter"

  2820. uspp_filter_deps="gpl avcodec"

  2821. zmq_filter_deps="libzmq"

  2822. zoompan_filter_deps="swscale"

  2823. 

  2824. # examples

  2825. avio_reading="avformat avcodec avutil"

  2826. avio_dir_cmd="avformat avutil"

  2827. avcodec_example_deps="avcodec avutil"

  2828. decoding_encoding_example_deps="avcodec avformat avutil"

  2829. demuxing_decoding_example_deps="avcodec avformat avutil"

  2830. extract_mvs_example_deps="avcodec avformat avutil"

  2831. filter_audio_example_deps="avfilter avutil"

  2832. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  2833. filtering_video_example_deps="avfilter avcodec avformat avutil"

  2834. metadata_example_deps="avformat avutil"

  2835. muxing_example_deps="avcodec avformat avutil swscale"

  2836. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  2837. remuxing_example_deps="avcodec avformat avutil"

  2838. resampling_audio_example_deps="avutil swresample"

  2839. scaling_video_example_deps="avutil swscale"

  2840. transcode_aac_example_deps="avcodec avformat swresample"

  2841. transcoding_example_deps="avfilter avcodec avformat avutil"

  2842. 

  2843. # libraries, in linking order

  2844. avcodec_deps="avutil"

  2845. avdevice_deps="avformat avcodec avutil"

  2846. avfilter_deps="avutil"

  2847. avformat_deps="avcodec avutil"

  2848. avresample_deps="avutil"

  2849. postproc_deps="avutil gpl"

  2850. swresample_deps="avutil"

  2851. swscale_deps="avutil"

  2852. 

  2853. # programs

  2854. ffmpeg_deps="avcodec avfilter avformat swresample"

  2855. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  2856.                null_filter

  2857.                setpts_filter trim_filter"

  2858. ffplay_deps="avcodec avformat swscale swresample sdl"

  2859. ffplay_libs='$sdl_libs'

  2860. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  2861. ffprobe_deps="avcodec avformat"

  2862. ffserver_deps="avformat fork sarestart"

  2863. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  2864. 

  2865. # documentation

  2866. podpages_deps="perl"

  2867. manpages_deps="perl pod2man"

  2868. htmlpages_deps="perl"

  2869. htmlpages_deps_any="makeinfo_html texi2html"

  2870. txtpages_deps="perl makeinfo"

  2871. doc_deps_any="manpages htmlpages podpages txtpages"

  2872. 

  2873. # default parameters

  2874. 

  2875. logfile="config.log"

  2876. 

  2877. # installation paths

  2878. prefix_default="/usr/local"

  2879. bindir_default='${prefix}/bin'

  2880. datadir_default='${prefix}/share/ffmpeg'

  2881. docdir_default='${prefix}/share/doc/ffmpeg'

  2882. incdir_default='${prefix}/include'

  2883. libdir_default='${prefix}/lib'

  2884. mandir_default='${prefix}/share/man'

  2885. 

  2886. # toolchain

  2887. ar_default="ar"

  2888. cc_default="gcc"

  2889. cxx_default="g++"

  2890. host_cc_default="gcc"

  2891. cp_f="cp -f"

  2892. doxygen_default="doxygen"

  2893. install="install"

  2894. ln_s="ln -s -f"

  2895. nm_default="nm -g"

  2896. objformat="elf"

  2897. pkg_config_default=pkg-config

  2898. ranlib_default="ranlib"

  2899. strip_default="strip"

  2900. yasmexe_default="yasm"

  2901. windres_default="windres"

  2902. 

  2903. # OS

  2904. target_os_default=$(tolower $(uname -s))

  2905. host_os=$target_os_default

  2906. 

  2907. # machine

  2908. if test "$target_os_default" = aix; then

  2909.     arch_default=$(uname -p)

  2910.     strip_default="strip -X32_64"

  2911. else

  2912.     arch_default=$(uname -m)

  2913. fi

  2914. cpu="generic"

  2915. intrinsics="none"

  2916. 

  2917. # configurable options

  2918. enable $PROGRAM_LIST

  2919. enable $DOCUMENT_LIST

  2920. enable $EXAMPLE_LIST

  2921. enable $(filter_out avresample $LIBRARY_LIST)

  2922. enable stripping

  2923. 

  2924. enable asm

  2925. enable debug

  2926. enable doc

  2927. enable faan faandct faanidct

  2928. enable optimizations

  2929. enable runtime_cpudetect

  2930. enable safe_bitstream_reader

  2931. enable static

  2932. enable swscale_alpha

  2933. enable valgrind_backtrace

  2934. 

  2935. sws_max_filter_size_default=256

  2936. set_default sws_max_filter_size

  2937. 

  2938. # Enable hwaccels by default.

  2939. enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc

  2940. enable xlib

  2941. 

  2942. # build settings

  2943. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  2944. LIBPREF="lib"

  2945. LIBSUF=".a"

  2946. FULLNAME='$(NAME)$(BUILDSUF)'

  2947. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  2948. SLIBPREF="lib"

  2949. SLIBSUF=".so"

  2950. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  2951. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  2952. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  2953. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  2954. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  2955. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  2956. 

  2957. asflags_filter=echo

  2958. cflags_filter=echo

  2959. ldflags_filter=echo

  2960. 

  2961. AS_C='-c'

  2962. AS_O='-o $@'

  2963. CC_C='-c'

  2964. CC_E='-E -o $@'

  2965. CC_O='-o $@'

  2966. CXX_C='-c'

  2967. CXX_O='-o $@'

  2968. LD_O='-o $@'

  2969. LD_LIB='-l%'

  2970. LD_PATH='-L'

  2971. HOSTCC_C='-c'

  2972. HOSTCC_E='-E -o $@'

  2973. HOSTCC_O='-o $@'

  2974. HOSTLD_O='-o $@'

  2975. 

  2976. host_libs='-lm'

  2977. host_cflags_filter=echo

  2978. host_ldflags_filter=echo

  2979. 

  2980. target_path='$(CURDIR)'

  2981. 

  2982. # since the object filename is not given with the -MM flag, the compiler

  2983. # is only able to print the basename, and we must add the path ourselves

  2984. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'

  2985. DEPFLAGS='-MM'

  2986. 

  2987. # find source path

  2988. if test -f configure; then

  2989.     source_path=.

  2990. else

  2991.     source_path=$(cd $(dirname "$0"); pwd)

  2992.     case "$source_path" in

  2993.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  2994.     esac

  2995.     test -e "$source_path/config.h" &&

  2996.         die "Out of tree builds are impossible with config.h in source dir."

  2997. fi

  2998. 

  2999. for v in "$@"; do

  3000.     r=${v#*=}

  3001.     l=${v%"$r"}

  3002.     r=$(sh_quote "$r")

  3003.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3004. done

  3005. 

  3006. find_things(){

  3007.     thing=$1

  3008.     pattern=$2

  3009.     file=$source_path/$3

  3010.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3011. }

  3012. 

  3013. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3014. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3015. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3016. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3017. BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)

  3018. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3019. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3020. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3021. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3022. PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)

  3023. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3024. 

  3025. ALL_COMPONENTS="

  3026.     $BSF_LIST

  3027.     $DECODER_LIST

  3028.     $DEMUXER_LIST

  3029.     $ENCODER_LIST

  3030.     $FILTER_LIST

  3031.     $HWACCEL_LIST

  3032.     $INDEV_LIST

  3033.     $MUXER_LIST

  3034.     $OUTDEV_LIST

  3035.     $PARSER_LIST

  3036.     $PROTOCOL_LIST

  3037. "

  3038. 

  3039. for n in $COMPONENT_LIST; do

  3040.     v=$(toupper ${n%s})_LIST

  3041.     eval enable \$$v

  3042.     eval ${n}_if_any="\$$v"

  3043. done

  3044. 

  3045. enable $ARCH_EXT_LIST

  3046. 

  3047. die_unknown(){

  3048.     echo "Unknown option \"$1\"."

  3049.     echo "See $0 --help for available options."

  3050.     exit 1

  3051. }

  3052. 

  3053. print_in_columns() {

  3054.     cols=$(expr $ncols / 24)

  3055.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3056. }

  3057. 

  3058. show_list() {

  3059.     suffix=_$1

  3060.     shift

  3061.     echo $* | sed s/$suffix//g | print_in_columns

  3062.     exit 0

  3063. }

  3064. 

  3065. rand_list(){

  3066.     IFS=', '

  3067.     set -- $*

  3068.     unset IFS

  3069.     for thing; do

  3070.         comp=${thing%:*}

  3071.         prob=${thing#$comp}

  3072.         prob=${prob#:}

  3073.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3074.         echo "prob ${prob:-0.5}"

  3075.         printf '%s\n' $comp

  3076.     done

  3077. }

  3078. 

  3079. do_random(){

  3080.     action=$1

  3081.     shift

  3082.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3083.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3084. }

  3085. 

  3086. for opt do

  3087.     optval="${opt#*=}"

  3088.     case "$opt" in

  3089.         --extra-ldflags=*)

  3090.             add_ldflags $optval

  3091.         ;;

  3092.         --extra-ldexeflags=*)

  3093.             add_ldexeflags $optval

  3094.         ;;

  3095.         --extra-ldlibflags=*)

  3096.             add_ldlibflags $optval

  3097.         ;;

  3098.         --extra-libs=*)

  3099.             add_extralibs $optval

  3100.         ;;

  3101.         --disable-devices)

  3102.             disable $INDEV_LIST $OUTDEV_LIST

  3103.         ;;

  3104.         --enable-debug=*)

  3105.             debuglevel="$optval"

  3106.         ;;

  3107.         --disable-programs)

  3108.             disable $PROGRAM_LIST

  3109.         ;;

  3110.         --disable-everything)

  3111.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3112.         ;;

  3113.         --disable-all)

  3114.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3115.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3116.         ;;

  3117.         --enable-random|--disable-random)

  3118.             action=${opt%%-random}

  3119.             do_random ${action#--} $COMPONENT_LIST

  3120.         ;;

  3121.         --enable-random=*|--disable-random=*)

  3122.             action=${opt%%-random=*}

  3123.             do_random ${action#--} $optval

  3124.         ;;

  3125.         --enable-*=*|--disable-*=*)

  3126.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3127.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3128.             eval list=\$$(toupper $thing)_LIST

  3129.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3130.             list=$(filter "$name" $list)

  3131.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3132.             $action $list

  3133.         ;;

  3134.         --enable-?*|--disable-?*)

  3135.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3136.             if is_in $option $COMPONENT_LIST; then

  3137.                 test $action = disable && action=unset

  3138.                 eval $action \$$(toupper ${option%s})_LIST

  3139.             elif is_in $option $CMDLINE_SELECT; then

  3140.                 $action $option

  3141.             else

  3142.                 die_unknown $opt

  3143.             fi

  3144.         ;;

  3145.         --list-*)

  3146.             NAME="${opt#--list-}"

  3147.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3148.             NAME=${NAME%s}

  3149.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3150.         ;;

  3151.         --help|-h) show_help

  3152.         ;;

  3153.         --fatal-warnings) enable fatal_warnings

  3154.         ;;

  3155.         *)

  3156.             optname="${opt%%=*}"

  3157.             optname="${optname#--}"

  3158.             optname=$(echo "$optname" | sed 's/-/_/g')

  3159.             if is_in $optname $CMDLINE_SET; then

  3160.                 eval $optname='$optval'

  3161.             elif is_in $optname $CMDLINE_APPEND; then

  3162.                 append $optname "$optval"

  3163.             else

  3164.                 die_unknown $opt

  3165.             fi

  3166.         ;;

  3167.     esac

  3168. done

  3169. 

  3170. for e in $env; do

  3171.     eval "export $e"

  3172. done

  3173. 

  3174. disabled logging && logfile=/dev/null

  3175. 

  3176. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3177. set >> $logfile

  3178. 

  3179. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3180. 

  3181. case "$toolchain" in

  3182.     clang-asan)

  3183.         cc_default="clang"

  3184.         add_cflags  -fsanitize=address

  3185.         add_ldflags -fsanitize=address

  3186.     ;;

  3187.     clang-tsan)

  3188.         cc_default="clang"

  3189.         add_cflags  -fsanitize=thread -pie

  3190.         add_ldflags -fsanitize=thread -pie

  3191.     ;;

  3192.     clang-usan)

  3193.         cc_default="clang"

  3194.         add_cflags  -fsanitize=undefined

  3195.         add_ldflags -fsanitize=undefined

  3196.     ;;

  3197.     gcc-asan)

  3198.         cc_default="gcc"

  3199.         add_cflags  -fsanitize=address

  3200.         add_ldflags -fsanitize=address

  3201.     ;;

  3202.     gcc-tsan)

  3203.         cc_default="gcc"

  3204.         add_cflags  -fsanitize=thread -pie -fPIC

  3205.         add_ldflags -fsanitize=thread -pie -fPIC

  3206.     ;;

  3207.     gcc-usan)

  3208.         cc_default="gcc"

  3209.         add_cflags  -fsanitize=undefined

  3210.         add_ldflags -fsanitize=undefined

  3211.     ;;

  3212.     valgrind-massif)

  3213.         target_exec_default=${valgrind:-"valgrind"}

  3214.         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"

  3215.     ;;

  3216.     valgrind-memcheck)

  3217.         target_exec_default=${valgrind:-"valgrind"}

  3218.         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"

  3219.     ;;

  3220.     msvc)

  3221.         # Check whether the current MSVC version needs the C99 converter.

  3222.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3223.         # support enough of C99 to build ffmpeg. Default to the new

  3224.         # behaviour if the regexp was unable to match anything, since this

  3225.         # successfully parses the version number of existing supported

  3226.         # versions that require the converter (MSVC 2010 and 2012).

  3227.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3228.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3229.             cc_default="cl"

  3230.         else

  3231.             cc_default="c99wrap cl"

  3232.         fi

  3233.         ld_default="$source_path/compat/windows/mslink"

  3234.         nm_default="dumpbin -symbols"

  3235.         ar_default="lib"

  3236.         case "$arch" in

  3237.         arm*)

  3238.             as_default="armasm"

  3239.             ;;

  3240.         esac

  3241.         target_os_default="win32"

  3242.         # Use a relative path for TMPDIR. This makes sure all the

  3243.         # ffconf temp files are written with a relative path, avoiding

  3244.         # issues with msys/win32 path conversion for MSVC parameters

  3245.         # such as -Fo<file> or -out:<file>.

  3246.         TMPDIR=.

  3247.     ;;

  3248.     icl)

  3249.         cc_default="icl"

  3250.         ld_default="xilink"

  3251.         nm_default="dumpbin -symbols"

  3252.         ar_default="xilib"

  3253.         target_os_default="win32"

  3254.         TMPDIR=.

  3255.     ;;

  3256.     gcov)

  3257.         add_cflags  -fprofile-arcs -ftest-coverage

  3258.         add_ldflags -fprofile-arcs -ftest-coverage

  3259.     ;;

  3260.     hardened)

  3261.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3262.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3263.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3264.     ;;

  3265.     ?*)

  3266.         die "Unknown toolchain $toolchain"

  3267.     ;;

  3268. esac

  3269. 

  3270. test -n "$cross_prefix" && enable cross_compile

  3271. 

  3272. if enabled cross_compile; then

  3273.     test -n "$arch" && test -n "$target_os" ||

  3274.         die "Must specify target arch and OS when cross-compiling"

  3275. fi

  3276. 

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

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

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

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

  3281. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3282. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3283.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3284. else

  3285.     ranlib_default="${cross_prefix}${ranlib_default}"

  3286. fi

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

  3288. windres_default="${cross_prefix}${windres_default}"

  3289. 

  3290. sysinclude_default="${sysroot}/usr/include"

  3291. 

  3292. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3293.     target_exec target_os yasmexe

  3294. enabled cross_compile || host_cc_default=$cc

  3295. set_default host_cc

  3296. 

  3297. pkg_config_fail_message=""

  3298. if ! $pkg_config --version >/dev/null 2>&1; then

  3299.     warn "$pkg_config not found, library detection may fail."

  3300.     pkg_config=false

  3301. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3302.     pkg_config_fail_message="

  3303. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3304. fi

  3305. 

  3306. if test $doxygen != $doxygen_default && \

  3307.   ! $doxygen --version >/dev/null 2>&1; then

  3308.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3309. fi

  3310. 

  3311. exesuf() {

  3312.     case $1 in

  3313.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3314.     esac

  3315. }

  3316. 

  3317. EXESUF=$(exesuf $target_os)

  3318. HOSTEXESUF=$(exesuf $host_os)

  3319. 

  3320. # set temporary file name

  3321. : ${TMPDIR:=$TEMPDIR}

  3322. : ${TMPDIR:=$TMP}

  3323. : ${TMPDIR:=/tmp}

  3324. 

  3325. if [ -n "$tempprefix" ] ; then

  3326.     mktemp(){

  3327.         echo $tempprefix.${HOSTNAME}.${UID}

  3328.     }

  3329. elif ! check_cmd mktemp -u XXXXXX; then

  3330.     # simple replacement for missing mktemp

  3331.     # NOT SAFE FOR GENERAL USE

  3332.     mktemp(){

  3333.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3334.     }

  3335. fi

  3336. 

  3337. tmpfile(){

  3338.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3339.         (set -C; exec > $tmp) 2>/dev/null ||

  3340.         die "Unable to create temporary file in $TMPDIR."

  3341.     append TMPFILES $tmp

  3342.     eval $1=$tmp

  3343. }

  3344. 

  3345. trap 'rm -f -- $TMPFILES' EXIT

  3346. 

  3347. tmpfile TMPASM .asm

  3348. tmpfile TMPC   .c

  3349. tmpfile TMPCPP .cpp

  3350. tmpfile TMPE   $EXESUF

  3351. tmpfile TMPH   .h

  3352. tmpfile TMPM   .m

  3353. tmpfile TMPO   .o

  3354. tmpfile TMPS   .S

  3355. tmpfile TMPSH  .sh

  3356. tmpfile TMPV   .ver

  3357. 

  3358. unset -f mktemp

  3359. 

  3360. chmod +x $TMPE

  3361. 

  3362. # make sure we can execute files in $TMPDIR

  3363. cat > $TMPSH 2>> $logfile <<EOF

  3364. #! /bin/sh

  3365. EOF

  3366. chmod +x $TMPSH >> $logfile 2>&1

  3367. if ! $TMPSH >> $logfile 2>&1; then

  3368.     cat <<EOF

  3369. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3370. variable to another directory and make sure that it is not mounted noexec.

  3371. EOF

  3372.     die "Sanity test failed."

  3373. fi

  3374. 

  3375. armasm_flags(){

  3376.     for flag; do

  3377.         case $flag in

  3378.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3379.             # be passed to gas-preprocessor

  3380.             -M[TD]*)                                            ;;

  3381.             *)                  echo $flag                      ;;

  3382.         esac

  3383.    done

  3384. }

  3385. 

  3386. ccc_flags(){

  3387.     for flag; do

  3388.         case $flag in

  3389.             -std=c99)           echo -c99                       ;;

  3390.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3391.             -mieee)             echo -ieee                      ;;

  3392.             -O*|-fast)          echo $flag                      ;;

  3393.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3394.             -g)                 echo -g3                        ;;

  3395.             -Wall)              echo -msg_enable level2         ;;

  3396.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3397.             -Wl,*)              echo $flag                      ;;

  3398.             -f*|-W*)                                            ;;

  3399.             *)                  echo $flag                      ;;

  3400.         esac

  3401.    done

  3402. }

  3403. 

  3404. cparser_flags(){

  3405.     for flag; do

  3406.         case $flag in

  3407.             -Wno-switch)             echo -Wno-switch-enum ;;

  3408.             -Wno-format-zero-length) ;;

  3409.             -Wdisabled-optimization) ;;

  3410.             -Wno-pointer-sign)       echo -Wno-other ;;

  3411.             *)                       echo $flag ;;

  3412.         esac

  3413.     done

  3414. }

  3415. 

  3416. msvc_common_flags(){

  3417.     for flag; do

  3418.         case $flag in

  3419.             # In addition to specifying certain flags under the compiler

  3420.             # specific filters, they must be specified here as well or else the

  3421.             # generic catch all at the bottom will print the original flag.

  3422.             -Wall)                ;;

  3423.             -std=c99)             ;;

  3424.             # Common flags

  3425.             -fomit-frame-pointer) ;;

  3426.             -g)                   echo -Z7 ;;

  3427.             -fno-math-errno)      ;;

  3428.             -fno-common)          ;;

  3429.             -fno-signed-zeros)    ;;

  3430.             -fPIC)                ;;

  3431.             -mthumb)              ;;

  3432.             -march=*)             ;;

  3433.             -lz)                  echo zlib.lib ;;

  3434.             -lavifil32)           echo vfw32.lib ;;

  3435.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3436.             -l*)                  echo ${flag#-l}.lib ;;

  3437.             -LARGEADDRESSAWARE)   echo $flag ;;

  3438.             -L*)                  echo -libpath:${flag#-L} ;;

  3439.             *)                    echo $flag ;;

  3440.         esac

  3441.     done

  3442. }

  3443. 

  3444. msvc_flags(){

  3445.     msvc_common_flags "$@"

  3446.     for flag; do

  3447.         case $flag in

  3448.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3449.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3450.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3451.                                        -wd4307 \

  3452.                                        -wd4273 -wd4554 -wd4701 ;;

  3453.         esac

  3454.     done

  3455. }

  3456. 

  3457. icl_flags(){

  3458.     msvc_common_flags "$@"

  3459.     for flag; do

  3460.         case $flag in

  3461.             # Despite what Intel's documentation says -Wall, which is supported

  3462.             # on Windows, does enable remarks so disable them here.

  3463.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3464.             -std=c99)             echo -Qstd=c99 ;;

  3465.             -flto)                echo -ipo ;;

  3466.         esac

  3467.     done

  3468. }

  3469. 

  3470. icc_flags(){

  3471.     for flag; do

  3472.         case $flag in

  3473.             -flto)                echo -ipo ;;

  3474.             *)                    echo $flag ;;

  3475.         esac

  3476.     done

  3477. }

  3478. 

  3479. pgi_flags(){

  3480.     for flag; do

  3481.         case $flag in

  3482.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3483.             -fomit-frame-pointer) echo -Mnoframe ;;

  3484.             -g)                   echo -gopt ;;

  3485.             *)                    echo $flag ;;

  3486.         esac

  3487.     done

  3488. }

  3489. 

  3490. suncc_flags(){

  3491.     for flag; do

  3492.         case $flag in

  3493.             -march=*|-mcpu=*)

  3494.                 case "${flag#*=}" in

  3495.                     native)                   echo -xtarget=native       ;;

  3496.                     v9|niagara)               echo -xarch=sparc          ;;

  3497.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3498.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3499.                     i586|pentium)             echo -xchip=pentium        ;;

  3500.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3501.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3502.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3503.                     pentium4*)          echo -xtarget=pentium4           ;;

  3504.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3505.                     *-sse3)             echo -xarch=sse3                 ;;

  3506.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3507.                     bonnell)                   echo -xarch=ssse3         ;;

  3508.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3509.                     westmere)                  echo -xtarget=westmere    ;;

  3510.                     silvermont)                echo -xarch=sse4_2        ;;

  3511.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3512.                     core-avx*|ivybridge|haswell|broadwell)

  3513.                                                echo -xarch=avx           ;;

  3514.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3515.                     btver1)                    echo -xarch=amdsse4a      ;;

  3516.                     btver2|bdver*)             echo -xarch=avx           ;;

  3517.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3518.                     k8|opteron|athlon64|athlon-fx)

  3519.                                                echo -xarch=sse2a         ;;

  3520.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3521.                 esac

  3522.                 ;;

  3523.             -std=c99)             echo -xc99              ;;

  3524.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3525.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3526.             -W*,*)                echo $flag              ;;

  3527.             -f*-*|-W*|-mimpure-text)                      ;;

  3528.             -shared)              echo -G                 ;;

  3529.             *)                    echo $flag              ;;

  3530.         esac

  3531.     done

  3532. }

  3533. 

  3534. tms470_flags(){

  3535.     for flag; do

  3536.         case $flag in

  3537.             -march=*|-mcpu=*)

  3538.                 case "${flag#*=}" in

  3539.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3540.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3541.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3542.                     armv6*|arm11*)          echo -mv=6   ;;

  3543.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3544.                                             echo -mv=5e  ;;

  3545.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3546.                 esac

  3547.                 ;;

  3548.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3549.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

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

  3551.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3552.             -msoft-float)   echo --float_support=vfplib       ;;

  3553.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3554.             -g)             echo -g -mn                       ;;

  3555.             -pds=*)         echo $flag                        ;;

  3556.             -D*|-I*)        echo $flag                        ;;

  3557.             --gcc|--abi=*)  echo $flag                        ;;

  3558.             -me)            echo $flag                        ;;

  3559.         esac

  3560.     done

  3561. }

  3562. 

  3563. probe_cc(){

  3564.     pfx=$1

  3565.     _cc=$2

  3566.     first=$3

  3567. 

  3568.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3569.     unset _ld_o _ldflags _ld_lib _ld_path

  3570.     unset _depflags _DEPCMD _DEPFLAGS

  3571.     _flags_filter=echo

  3572. 

  3573.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3574.         true # no-op to avoid reading stdin in following checks

  3575.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3576.         _type=llvm_gcc

  3577.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3578.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3579.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3580.         _cflags_speed='-O3'

  3581.         _cflags_size='-Os'

  3582.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3583.         _type=gcc

  3584.         gcc_version=$($_cc --version | head -n1)

  3585.         gcc_basever=$($_cc -dumpversion)

  3586.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3587.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3588.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3589.         case $gcc_basever in

  3590.             2*) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3591.         esac

  3592.         if [ "$first" = true ]; then

  3593.             case $gcc_basever in

  3594.                 4.2*)

  3595.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3596.             esac

  3597.         fi

  3598.         _cflags_speed='-O3'

  3599.         _cflags_size='-Os'

  3600.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3601.         _type=icc

  3602.         _ident=$($_cc --version | head -n1)

  3603.         _depflags='-MMD'

  3604.         _cflags_speed='-O3'

  3605.         _cflags_size='-Os'

  3606.         _cflags_noopt='-O1'

  3607.         _flags_filter=icc_flags

  3608.     elif $_cc -v 2>&1 | grep -q xlc; then

  3609.         _type=xlc

  3610.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3611.         _cflags_speed='-O5'

  3612.         _cflags_size='-O5 -qcompact'

  3613.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3614.         _type=ccc

  3615.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3616.         _DEPFLAGS='-M'

  3617.         _cflags_speed='-fast'

  3618.         _cflags_size='-O1'

  3619.         _flags_filter=ccc_flags

  3620.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3621.         test -d "$sysroot" || die "No valid sysroot specified."

  3622.         _type=armcc

  3623.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3624.         armcc_conf="$PWD/armcc.conf"

  3625.         $_cc --arm_linux_configure                 \

  3626.              --arm_linux_config_file="$armcc_conf" \

  3627.              --configure_sysroot="$sysroot"        \

  3628.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3629.              die "Error creating armcc configuration file."

  3630.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3631.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3632.         as_default="${cross_prefix}gcc"

  3633.         _depflags='-MMD'

  3634.         _cflags_speed='-O3'

  3635.         _cflags_size='-Os'

  3636.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3637.         _type=tms470

  3638.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3639.         _flags='--gcc --abi=eabi -me'

  3640.         _cc_e='-ppl -fe=$@'

  3641.         _cc_o='-fe=$@'

  3642.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3643.         _cflags_speed='-O3 -mf=5'

  3644.         _cflags_size='-O3 -mf=2'

  3645.         _flags_filter=tms470_flags

  3646.     elif $_cc -v 2>&1 | grep -q clang; then

  3647.         _type=clang

  3648.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3649.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3650.         _cflags_speed='-O3'

  3651.         _cflags_size='-Os'

  3652.     elif $_cc -V 2>&1 | grep -q Sun; then

  3653.         _type=suncc

  3654.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3655.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3656.         _DEPFLAGS='-xM1 -xc99'

  3657.         _ldflags='-std=c99'

  3658.         _cflags_speed='-O5'

  3659.         _cflags_size='-O5 -xspace'

  3660.         _flags_filter=suncc_flags

  3661.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3662.         _type=pathscale

  3663.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3664.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3665.         _cflags_speed='-O2'

  3666.         _cflags_size='-Os'

  3667.         _flags_filter='filter_out -Wdisabled-optimization'

  3668.     elif $_cc -v 2>&1 | grep -q Open64; then

  3669.         _type=open64

  3670.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3671.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3672.         _cflags_speed='-O2'

  3673.         _cflags_size='-Os'

  3674.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3675.     elif $_cc -V 2>&1 | grep -q Portland; then

  3676.         _type=pgi

  3677.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3678.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  3679.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  3680.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  3681.         _cflags_noopt="-O"

  3682.         _flags_filter=pgi_flags

  3683.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  3684.         _type=armasm

  3685.         _ident=$($_cc | head -n1)

  3686.         # 4509: "This form of conditional instruction is deprecated"

  3687.         _flags="-nologo -ignore 4509"

  3688.         _flags_filter=armasm_flags

  3689.     elif $_cc 2>&1 | grep -q Intel; then

  3690.         _type=icl

  3691.         _ident=$($_cc 2>&1 | head -n1)

  3692.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  3693.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  3694.         # versions (tested) as well.

  3695.         _cflags_speed="-O2"

  3696.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  3697.         if $_cc 2>&1 | grep -q Linker; then

  3698.             _ld_o='-out:$@'

  3699.         else

  3700.             _ld_o='-Fe$@'

  3701.         fi

  3702.         _cc_o='-Fo$@'

  3703.         _cc_e='-P'

  3704.         _flags_filter=icl_flags

  3705.         _ld_lib='lib%.a'

  3706.         _ld_path='-libpath:'

  3707.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  3708.         _flags='-nologo -Qdiag-error:4044,10157'

  3709.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  3710.         # with MSVC which enables it by default.

  3711.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  3712.         disable stripping

  3713.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  3714.         _type=msvc

  3715.         _ident=$($_cc 2>&1 | head -n1)

  3716.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  3717.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  3718.         _cflags_speed="-O2"

  3719.         _cflags_size="-O1"

  3720.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  3721.             _ld_o='-out:$@'

  3722.         else

  3723.             _ld_o='-Fe$@'

  3724.         fi

  3725.         _cc_o='-Fo$@'

  3726.         _cc_e='-P -Fi$@'

  3727.         _flags_filter=msvc_flags

  3728.         _ld_lib='lib%.a'

  3729.         _ld_path='-libpath:'

  3730.         _flags='-nologo'

  3731.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS'

  3732.         disable stripping

  3733.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  3734.         _type=cparser

  3735.         _ident=$($_cc --version | head -n1)

  3736.         _depflags='-MMD'

  3737.         _cflags_speed='-O4'

  3738.         _cflags_size='-O2'

  3739.         _flags_filter=cparser_flags

  3740.     fi

  3741. 

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

  3743.     eval ${pfx}_ident=\$_ident

  3744. }

  3745. 

  3746. set_ccvars(){

  3747.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  3748.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  3749.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  3750. 

  3751.     if [ -n "$_depflags" ]; then

  3752.         eval ${1}_DEPFLAGS=\$_depflags

  3753.     else

  3754.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  3755.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  3756.         eval DEP${1}FLAGS=\$_flags

  3757.     fi

  3758. }

  3759. 

  3760. probe_cc cc "$cc" "true"

  3761. cflags_filter=$_flags_filter

  3762. cflags_speed=$_cflags_speed

  3763. cflags_size=$_cflags_size

  3764. cflags_noopt=$_cflags_noopt

  3765. add_cflags $_flags $_cflags

  3766. cc_ldflags=$_ldflags

  3767. set_ccvars CC

  3768. 

  3769. probe_cc hostcc "$host_cc"

  3770. host_cflags_filter=$_flags_filter

  3771. add_host_cflags  $_flags $_cflags

  3772. set_ccvars HOSTCC

  3773. 

  3774. test -n "$cc_type" && enable $cc_type ||

  3775.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  3776. 

  3777. : ${as_default:=$cc}

  3778. : ${dep_cc_default:=$cc}

  3779. : ${ld_default:=$cc}

  3780. : ${host_ld_default:=$host_cc}

  3781. set_default ar as dep_cc ld host_ld windres

  3782. 

  3783. probe_cc as "$as"

  3784. asflags_filter=$_flags_filter

  3785. add_asflags $_flags $_cflags

  3786. set_ccvars AS

  3787. 

  3788. probe_cc ld "$ld"

  3789. ldflags_filter=$_flags_filter

  3790. add_ldflags $_flags $_ldflags

  3791. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  3792. LD_O=${_ld_o-$LD_O}

  3793. LD_LIB=${_ld_lib-$LD_LIB}

  3794. LD_PATH=${_ld_path-$LD_PATH}

  3795. 

  3796. probe_cc hostld "$host_ld"

  3797. host_ldflags_filter=$_flags_filter

  3798. add_host_ldflags $_flags $_ldflags

  3799. HOSTLD_O=${_ld_o-$HOSTLD_O}

  3800. 

  3801. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  3802.     probe_cc depcc "$dep_cc"

  3803.     CCDEP=${_DEPCMD:-$DEPCMD}

  3804.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  3805.     DEPCCFLAGS=$_flags

  3806. fi

  3807. 

  3808. if $ar 2>&1 | grep -q Microsoft; then

  3809.     arflags="-nologo"

  3810.     ar_o='-out:$@'

  3811. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  3812.     arflags="rq"

  3813.     ar_o='$@'

  3814. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  3815.     arflags='-Xany -r -c'

  3816.     ar_o='$@'

  3817. elif $ar 2>&1 | grep -q "\[D\] "; then

  3818.     arflags="rcD"

  3819.     ar_o='$@'

  3820. else

  3821.     arflags="rc"

  3822.     ar_o='$@'

  3823. fi

  3824. 

  3825. add_cflags $extra_cflags

  3826. add_cxxflags $extra_cxxflags

  3827. add_asflags $extra_cflags

  3828. 

  3829. if test -n "$sysroot"; then

  3830.     case "$cc_type" in

  3831.         gcc|llvm_gcc|clang)

  3832.             add_cppflags --sysroot="$sysroot"

  3833.             add_ldflags --sysroot="$sysroot"

  3834. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  3835.             add_cppflags -isysroot "$sysroot"

  3836.             add_ldflags -isysroot "$sysroot"

  3837.         ;;

  3838.         tms470)

  3839.             add_cppflags -I"$sysinclude"

  3840.             add_ldflags  --sysroot="$sysroot"

  3841.         ;;

  3842.     esac

  3843. fi

  3844. 

  3845. if test "$cpu" = host; then

  3846.     enabled cross_compile &&

  3847.         die "--cpu=host makes no sense when cross-compiling."

  3848. 

  3849.     case "$cc_type" in

  3850.         gcc|llvm_gcc)

  3851.             check_native(){

  3852.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  3853.                 sed -n "/cc1.*$1=/{

  3854.                             s/.*$1=\\([^ ]*\\).*/\\1/

  3855.                             p

  3856.                             q

  3857.                         }" $TMPE

  3858.             }

  3859.             cpu=$(check_native -march || check_native -mcpu)

  3860.         ;;

  3861.     esac

  3862. 

  3863.     test "${cpu:-host}" = host &&

  3864.         die "--cpu=host not supported with compiler $cc"

  3865. fi

  3866. 

  3867. # Deal with common $arch aliases

  3868. case "$arch" in

  3869.     aarch64|arm64)

  3870.         arch="aarch64"

  3871.     ;;

  3872.     arm*|iPad*|iPhone*)

  3873.         arch="arm"

  3874.     ;;

  3875.     mips*|IP*)

  3876.         arch="mips"

  3877.     ;;

  3878.     parisc*|hppa*)

  3879.         arch="parisc"

  3880.     ;;

  3881.     "Power Macintosh"|ppc*|powerpc*)

  3882.         arch="ppc"

  3883.     ;;

  3884.     s390|s390x)

  3885.         arch="s390"

  3886.     ;;

  3887.     sh4|sh)

  3888.         arch="sh4"

  3889.     ;;

  3890.     sun4u|sparc*)

  3891.         arch="sparc"

  3892.     ;;

  3893.     tilegx|tile-gx)

  3894.         arch="tilegx"

  3895.     ;;

  3896.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  3897.         arch="x86"

  3898.     ;;

  3899. esac

  3900. 

  3901. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  3902. enable $arch

  3903. 

  3904. # Add processor-specific flags

  3905. if enabled aarch64; then

  3906. 

  3907.     case $cpu in

  3908.         armv*)

  3909.             cpuflags="-march=$cpu"

  3910.         ;;

  3911.         *)

  3912.             cpuflags="-mcpu=$cpu"

  3913.         ;;

  3914.     esac

  3915. 

  3916. elif enabled alpha; then

  3917. 

  3918.     cpuflags="-mcpu=$cpu"

  3919. 

  3920. elif enabled arm; then

  3921. 

  3922.     check_arm_arch() {

  3923.         check_cpp_condition stddef.h \

  3924.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  3925.             $cpuflags

  3926.     }

  3927. 

  3928.     probe_arm_arch() {

  3929.         if   check_arm_arch 4;        then echo armv4;

  3930.         elif check_arm_arch 4T;       then echo armv4t;

  3931.         elif check_arm_arch 5;        then echo armv5;

  3932.         elif check_arm_arch 5E;       then echo armv5e;

  3933.         elif check_arm_arch 5T;       then echo armv5t;

  3934.         elif check_arm_arch 5TE;      then echo armv5te;

  3935.         elif check_arm_arch 5TEJ;     then echo armv5te;

  3936.         elif check_arm_arch 6;        then echo armv6;

  3937.         elif check_arm_arch 6J;       then echo armv6j;

  3938.         elif check_arm_arch 6K;       then echo armv6k;

  3939.         elif check_arm_arch 6Z;       then echo armv6z;

  3940.         elif check_arm_arch 6ZK;      then echo armv6zk;

  3941.         elif check_arm_arch 6T2;      then echo armv6t2;

  3942.         elif check_arm_arch 7;        then echo armv7;

  3943.         elif check_arm_arch 7A  7_A;  then echo armv7-a;

  3944.         elif check_arm_arch 7S;       then echo armv7-a;

  3945.         elif check_arm_arch 7R  7_R;  then echo armv7-r;

  3946.         elif check_arm_arch 7M  7_M;  then echo armv7-m;

  3947.         elif check_arm_arch 7EM 7E_M; then echo armv7-m;

  3948.         elif check_arm_arch 8A  8_A;  then echo armv8-a;

  3949.         fi

  3950.     }

  3951. 

  3952.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  3953. 

  3954.     case $cpu in

  3955.         armv*)

  3956.             cpuflags="-march=$cpu"

  3957.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  3958.         ;;

  3959.         *)

  3960.             cpuflags="-mcpu=$cpu"

  3961.             case $cpu in

  3962.                 cortex-a*)                               subarch=armv7a  ;;

  3963.                 cortex-r*)                               subarch=armv7r  ;;

  3964.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  3965.                 arm11*)                                  subarch=armv6   ;;

  3966.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  3967.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  3968.                 *)                             subarch=$(probe_arm_arch) ;;

  3969.             esac

  3970.         ;;

  3971.     esac

  3972. 

  3973.     case "$subarch" in

  3974.         armv5t*)    enable fast_clz                ;;

  3975.         armv[6-8]*)

  3976.             enable fast_clz

  3977.             disabled fast_unaligned || enable fast_unaligned

  3978.             ;;

  3979.     esac

  3980. 

  3981. elif enabled avr32; then

  3982. 

  3983.     case $cpu in

  3984.         ap7[02]0[0-2])

  3985.             subarch="avr32_ap"

  3986.             cpuflags="-mpart=$cpu"

  3987.         ;;

  3988.         ap)

  3989.             subarch="avr32_ap"

  3990.             cpuflags="-march=$cpu"

  3991.         ;;

  3992.         uc3[ab]*)

  3993.             subarch="avr32_uc"

  3994.             cpuflags="-mcpu=$cpu"

  3995.         ;;

  3996.         uc)

  3997.             subarch="avr32_uc"

  3998.             cpuflags="-march=$cpu"

  3999.         ;;

  4000.     esac

  4001. 

  4002. elif enabled bfin; then

  4003. 

  4004.     cpuflags="-mcpu=$cpu"

  4005. 

  4006. elif enabled mips; then

  4007. 

  4008.     cpuflags="-march=$cpu"

  4009. 

  4010.     case $cpu in

  4011.         24kc)

  4012.             disable mips32r5

  4013.             disable mips64r6

  4014.             disable mipsfpu

  4015.             disable mipsdspr1

  4016.             disable mipsdspr2

  4017.             disable msa

  4018.         ;;

  4019.         24kf*)

  4020.             disable mips32r5

  4021.             disable mips64r6

  4022.             disable mipsdspr1

  4023.             disable mipsdspr2

  4024.             disable msa

  4025.         ;;

  4026.         24kec|34kc|1004kc)

  4027.             disable mips32r5

  4028.             disable mips64r6

  4029.             disable mipsfpu

  4030.             disable mipsdspr2

  4031.             disable msa

  4032.         ;;

  4033.         24kef*|34kf*|1004kf*)

  4034.             disable mips32r5

  4035.             disable mips64r6

  4036.             disable mipsdspr2

  4037.             disable msa

  4038.         ;;

  4039.         74kc)

  4040.             disable mips32r5

  4041.             disable mips64r6

  4042.             disable mipsfpu

  4043.             disable msa

  4044.         ;;

  4045.         74kf)

  4046.             disable mips32r5

  4047.             disable mips64r6

  4048.             disable msa

  4049.         ;;

  4050.         p5600)

  4051.             disable mips64r6

  4052.             disable mipsdspr1

  4053.             disable mipsdspr2

  4054. 

  4055.             check_cflags "-mtune=p5600"

  4056.         ;;

  4057.         i6400)

  4058.             disable mips32r5

  4059.             disable mipsdspr1

  4060.             disable mipsdspr2

  4061.             disable mipsfpu

  4062. 

  4063.             check_cflags "-mtune=i6400 -mabi=64"

  4064.             check_ldflags "-mabi=64"

  4065.         ;;

  4066.         loongson*)

  4067.             disable mipsfpu

  4068.             disable mips32r2

  4069.             disable mips32r5

  4070.             disable mips64r6

  4071.             disable mipsdspr1

  4072.             disable mipsdspr2

  4073.             disable msa

  4074.             enable local_aligned_8 local_aligned_16 local_aligned_32

  4075.             enable simd_align_16

  4076.             enable fast_64bit

  4077.             enable fast_clz

  4078.             enable fast_cmov

  4079.             enable fast_unaligned

  4080.             disable aligned_stack

  4081.             case $cpu in

  4082.                 loongson3*)

  4083.                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4084.                 ;;

  4085.                 loongson2e)

  4086.                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4087.                 ;;

  4088.                 loongson2f)

  4089.                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4090.                 ;;

  4091.             esac

  4092.         ;;

  4093.         generic)

  4094.             disable mips32r5

  4095.             disable mips64r6

  4096.             disable msa

  4097.         ;;

  4098.     esac

  4099. 

  4100. elif enabled ppc; then

  4101. 

  4102.     disable ldbrx

  4103. 

  4104.     case $(tolower $cpu) in

  4105.         601|ppc601|powerpc601)

  4106.             cpuflags="-mcpu=601"

  4107.             disable altivec

  4108.         ;;

  4109.         603*|ppc603*|powerpc603*)

  4110.             cpuflags="-mcpu=603"

  4111.             disable altivec

  4112.         ;;

  4113.         604*|ppc604*|powerpc604*)

  4114.             cpuflags="-mcpu=604"

  4115.             disable altivec

  4116.         ;;

  4117.         g3|75*|ppc75*|powerpc75*)

  4118.             cpuflags="-mcpu=750"

  4119.             disable altivec

  4120.         ;;

  4121.         g4|745*|ppc745*|powerpc745*)

  4122.             cpuflags="-mcpu=7450"

  4123.             disable vsx

  4124.         ;;

  4125.         74*|ppc74*|powerpc74*)

  4126.             cpuflags="-mcpu=7400"

  4127.             disable vsx

  4128.         ;;

  4129.         g5|970|ppc970|powerpc970)

  4130.             cpuflags="-mcpu=970"

  4131.             disable vsx

  4132.         ;;

  4133.         power[3-6]*)

  4134.             cpuflags="-mcpu=$cpu"

  4135.             disable vsx

  4136.         ;;

  4137.         power[7-8]*)

  4138.             cpuflags="-mcpu=$cpu"

  4139.         ;;

  4140.         cell)

  4141.             cpuflags="-mcpu=cell"

  4142.             enable ldbrx

  4143.             disable vsx

  4144.         ;;

  4145.         e500mc)

  4146.             cpuflags="-mcpu=e500mc"

  4147.             disable altivec

  4148.         ;;

  4149.         e500v2)

  4150.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4151.             disable altivec

  4152.             disable dcbzl

  4153.         ;;

  4154.         e500)

  4155.             cpuflags="-mcpu=8540 -mhard-float"

  4156.             disable altivec

  4157.             disable dcbzl

  4158.         ;;

  4159.     esac

  4160. 

  4161. elif enabled sparc; then

  4162. 

  4163.     case $cpu in

  4164.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4165.             cpuflags="-mcpu=$cpu"

  4166.         ;;

  4167.         ultrasparc*|niagara[234])

  4168.             cpuflags="-mcpu=$cpu"

  4169.         ;;

  4170.     esac

  4171. 

  4172. elif enabled x86; then

  4173. 

  4174.     case $cpu in

  4175.         i[345]86|pentium)

  4176.             cpuflags="-march=$cpu"

  4177.             disable i686

  4178.             disable mmx

  4179.         ;;

  4180.         # targets that do NOT support nopl and conditional mov (cmov)

  4181.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4182.             cpuflags="-march=$cpu"

  4183.             disable i686

  4184.         ;;

  4185.         # targets that do support nopl and conditional mov (cmov)

  4186.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4187.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)

  4188.             cpuflags="-march=$cpu"

  4189.             enable i686

  4190.             enable fast_cmov

  4191.         ;;

  4192.         # targets that do support conditional mov but on which it's slow

  4193.         pentium4|pentium4m|prescott|nocona)

  4194.             cpuflags="-march=$cpu"

  4195.             enable i686

  4196.             disable fast_cmov

  4197.         ;;

  4198.     esac

  4199. 

  4200. fi

  4201. 

  4202. if [ "$cpu" != generic ]; then

  4203.     add_cflags  $cpuflags

  4204.     add_asflags $cpuflags

  4205.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4206. fi

  4207. 

  4208. # compiler sanity check

  4209. check_exec <<EOF

  4210. int main(void){ return 0; }

  4211. EOF

  4212. if test "$?" != 0; then

  4213.     echo "$cc is unable to create an executable file."

  4214.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4215.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4216.         echo "Only do this if you know what cross compiling means."

  4217.     fi

  4218.     die "C compiler test failed."

  4219. fi

  4220. 

  4221. add_cppflags -D_ISOC99_SOURCE

  4222. add_cxxflags -D__STDC_CONSTANT_MACROS

  4223. check_cflags -std=c99

  4224. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4225. #include <stdlib.h>

  4226. EOF

  4227. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4228. #include <stdlib.h>

  4229. EOF

  4230. 

  4231. add_host_cppflags -D_ISOC99_SOURCE

  4232. check_host_cflags -std=c99

  4233. check_host_cflags -Wall

  4234. check_host_cflags -O3

  4235. 

  4236. check_64bit(){

  4237.     arch32=$1

  4238.     arch64=$2

  4239.     expr=$3

  4240.     check_code cc "" "int test[2*($expr) - 1]" &&

  4241.         subarch=$arch64 || subarch=$arch32

  4242. }

  4243. 

  4244. case "$arch" in

  4245.     aarch64|alpha|ia64)

  4246.         spic=$shared

  4247.     ;;

  4248.     mips)

  4249.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4250.         spic=$shared

  4251.     ;;

  4252.     parisc)

  4253.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4254.         spic=$shared

  4255.     ;;

  4256.     ppc)

  4257.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4258.         spic=$shared

  4259.     ;;

  4260.     s390)

  4261.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4262.         spic=$shared

  4263.     ;;

  4264.     sparc)

  4265.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4266.         spic=$shared

  4267.     ;;

  4268.     x86)

  4269.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4270.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4271.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4272.             subarch=x86_64

  4273.         if test "$subarch" = "x86_64"; then

  4274.             spic=$shared

  4275.         fi

  4276.     ;;

  4277.     ppc)

  4278.         check_cc <<EOF && subarch="ppc64"

  4279.         int test[(int)sizeof(char*) - 7];

  4280. EOF

  4281.     ;;

  4282. esac

  4283. 

  4284. enable $subarch

  4285. enabled spic && enable_weak pic

  4286. 

  4287. # OS specific

  4288. case $target_os in

  4289.     aix)

  4290.         SHFLAGS=-shared

  4291.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4292.         enabled shared && add_ldflags -Wl,-brtl

  4293.         ;;

  4294.     android)

  4295.         disable symver

  4296.         enable section_data_rel_ro

  4297.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4298.         SLIB_INSTALL_LINKS=

  4299.         # soname not set on purpose

  4300.         SHFLAGS=-shared

  4301.         ;;

  4302.     haiku)

  4303.         prefix_default="/boot/common"

  4304.         network_extralibs="-lnetwork"

  4305.         host_libs=

  4306.         ;;

  4307.     sunos)

  4308.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4309.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4310.         network_extralibs="-lsocket -lnsl"

  4311.         add_cppflags -D__EXTENSIONS__

  4312.         # When using suncc to build, the Solaris linker will mark

  4313.         # an executable with each instruction set encountered by

  4314.         # the Solaris assembler.  As our libraries contain their own

  4315.         # guards for processor-specific code, instead suppress

  4316.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4317.         enabled_all suncc x86 &&

  4318.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4319.             add_ldflags -Wl,-M,mapfile

  4320.         nm_default='nm -P -g'

  4321.         ;;

  4322.     netbsd)

  4323.         disable symver

  4324.         oss_indev_extralibs="-lossaudio"

  4325.         oss_outdev_extralibs="-lossaudio"

  4326.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4327.         ;;

  4328.     openbsd|bitrig)

  4329.         disable symver

  4330.         SHFLAGS='-shared'

  4331.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4332.         SLIB_INSTALL_LINKS=

  4333.         oss_indev_extralibs="-lossaudio"

  4334.         oss_outdev_extralibs="-lossaudio"

  4335.         ;;

  4336.     dragonfly)

  4337.         disable symver

  4338.         ;;

  4339.     freebsd)

  4340.         ;;

  4341.     bsd/os)

  4342.         add_extralibs -lpoll -lgnugetopt

  4343.         strip="strip -d"

  4344.         ;;

  4345.     darwin)

  4346.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4347.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4348.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4349.         strip="${strip} -x"

  4350.         add_ldflags -Wl,-dynamic,-search_paths_first

  4351.         SLIBSUF=".dylib"

  4352.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4353.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4354.         objformat="macho"

  4355.         enabled x86_64 && objformat="macho64"

  4356.         enabled_any pic shared x86_64 ||

  4357.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4358.         ;;

  4359.     mingw32*|mingw64*)

  4360.         if test $target_os = "mingw32ce"; then

  4361.             disable network

  4362.         else

  4363.             target_os=mingw32

  4364.         fi

  4365.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4366.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4367.         LIBTARGET=i386

  4368.         if enabled x86_64; then

  4369.             LIBTARGET="i386:x86-64"

  4370.         elif enabled arm; then

  4371.             LIBTARGET=arm-wince

  4372.         fi

  4373.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4374.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4375.         shlibdir_default="$bindir_default"

  4376.         SLIBPREF=""

  4377.         SLIBSUF=".dll"

  4378.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4379.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4380.         dlltool="${cross_prefix}dlltool"

  4381.         if check_cmd lib.exe -list; then

  4382.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4383.             if enabled x86_64; then

  4384.                 LIBTARGET=x64

  4385.             fi

  4386.         elif check_cmd $dlltool --version; then

  4387.             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)'

  4388.         fi

  4389.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4390.         SLIB_INSTALL_LINKS=

  4391.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4392.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4393.         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'

  4394.         objformat="win32"

  4395.         ranlib=:

  4396.         enable dos_paths

  4397.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4398.         # Lets work around some stupidity in binutils.

  4399.         # ld will strip relocations from executables even though we need them

  4400.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4401.         # however ld then forgets what the entry point should be (oops) so we

  4402.         # have to manually (re)set it.

  4403.         if enabled x86_32; then

  4404.             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4405.         elif enabled x86_64; then

  4406.             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4407.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4408.             # Set image base >4GB for extra entropy with HEASLR

  4409.             add_ldexeflags -Wl,--image-base,0x140000000

  4410.             append SHFLAGS -Wl,--image-base,0x180000000

  4411.         fi

  4412.         ;;

  4413.     win32|win64)

  4414.         disable symver

  4415.         if enabled shared; then

  4416.             # Link to the import library instead of the normal static library

  4417.             # for shared libs.

  4418.             LD_LIB='%.lib'

  4419.             # Cannot build both shared and static libs with MSVC or icl.

  4420.             disable static

  4421.         fi

  4422.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4423.         shlibdir_default="$bindir_default"

  4424.         SLIBPREF=""

  4425.         SLIBSUF=".dll"

  4426.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4427.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4428.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4429.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4430.         SLIB_INSTALL_LINKS=

  4431.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4432.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4433.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4434.         objformat="win32"

  4435.         ranlib=:

  4436.         enable dos_paths

  4437.         ;;

  4438.     cygwin*)

  4439.         target_os=cygwin

  4440.         shlibdir_default="$bindir_default"

  4441.         SLIBPREF="cyg"

  4442.         SLIBSUF=".dll"

  4443.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4444.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4445.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4446.         SLIB_INSTALL_LINKS=

  4447.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4448.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4449.         objformat="win32"

  4450.         enable dos_paths

  4451.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4452.         ;;

  4453.     *-dos|freedos|opendos)

  4454.         network_extralibs="-lsocket"

  4455.         objformat="coff"

  4456.         enable dos_paths

  4457.         add_cppflags -U__STRICT_ANSI__

  4458.         ;;

  4459.     linux)

  4460.         enable dv1394

  4461.         enable section_data_rel_ro

  4462.         ;;

  4463.     irix*)

  4464.         target_os=irix

  4465.         ranlib="echo ignoring ranlib"

  4466.         ;;

  4467.     os/2*)

  4468.         strip="lxlite -CS"

  4469.         ln_s="cp -f"

  4470.         objformat="aout"

  4471.         add_cppflags -D_GNU_SOURCE

  4472.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4473.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4474.         LIBSUF="_s.a"

  4475.         SLIBPREF=""

  4476.         SLIBSUF=".dll"

  4477.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'

  4478.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4479.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \

  4480.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \

  4481.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \

  4482.             echo EXPORTS >> $(SUBDIR)$(NAME).def; \

  4483.             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'

  4484.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \

  4485.             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'

  4486.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'

  4487.         enable dos_paths

  4488.         enable_weak os2threads

  4489.         ;;

  4490.     gnu/kfreebsd)

  4491.         add_cppflags -D_BSD_SOURCE

  4492.         ;;

  4493.     gnu)

  4494.         ;;

  4495.     qnx)

  4496.         add_cppflags -D_QNX_SOURCE

  4497.         network_extralibs="-lsocket"

  4498.         ;;

  4499.     symbian)

  4500.         SLIBSUF=".dll"

  4501.         enable dos_paths

  4502.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4503.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4504.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4505.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4506.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4507.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4508.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4509.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4510.         ;;

  4511.     osf1)

  4512.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4513.         ;;

  4514.     minix)

  4515.         ;;

  4516.     plan9)

  4517.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4518.                      -D_REENTRANT_SOURCE        \

  4519.                      -D_RESEARCH_SOURCE         \

  4520.                      -DFD_SETSIZE=96            \

  4521.                      -DHAVE_SOCK_OPTS

  4522.         add_compat strtod.o strtod=avpriv_strtod

  4523.         network_extralibs='-lbsd'

  4524.         exeobjs=compat/plan9/main.o

  4525.         disable ffserver

  4526.         cp_f='cp'

  4527.         ;;

  4528.     none)

  4529.         ;;

  4530.     *)

  4531.         die "Unknown OS '$target_os'."

  4532.         ;;

  4533. esac

  4534. 

  4535. # determine libc flavour

  4536. 

  4537. probe_libc(){

  4538.     pfx=$1

  4539.     pfx_no_=${pfx%_}

  4540.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4541.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4542.         eval ${pfx}libc_type=uclibc

  4543.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4544.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4545.         eval ${pfx}libc_type=glibc

  4546.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4547.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4548.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4549.         eval ${pfx}libc_type=newlib

  4550.         add_${pfx}cppflags -U__STRICT_ANSI__

  4551.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4552.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4553.         eval ${pfx}libc_type=mingw64

  4554.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4555.             add_compat msvcrt/snprintf.o

  4556.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4557.         fi

  4558.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4559.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4560.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4561.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4562.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4563.         eval ${pfx}libc_type=mingw32

  4564.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4565.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4566.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4567.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4568.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4569.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4570.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4571.         eval ${pfx}libc_type=msvcrt

  4572.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4573.             if [ "$pfx" = host_ ]; then

  4574.                 add_host_cppflags -Dsnprintf=_snprintf

  4575.             else

  4576.                 add_compat strtod.o strtod=avpriv_strtod

  4577.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4578.                                              _snprintf=avpriv_snprintf  \

  4579.                                              vsnprintf=avpriv_vsnprintf

  4580.             fi

  4581.         fi

  4582.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4583.         # 0x601 by default unless something else is set by the user.

  4584.         # This can easily lead to us detecting functions only present

  4585.         # in such new versions and producing binaries requiring windows 7.0.

  4586.         # Therefore explicitly set the default to XP unless the user has

  4587.         # set something else on the command line.

  4588.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4589.         # family. For these cases, configure is free to use any functions

  4590.         # found in the SDK headers by default. (Alternatively, we could force

  4591.         # _WIN32_WINNT to 0x0602 in that case.)

  4592.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4593.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4594. #ifdef WINAPI_FAMILY

  4595. #include <winapifamily.h>

  4596. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4597. #error not desktop

  4598. #endif

  4599. #endif

  4600. EOF

  4601.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4602.         eval ${pfx}libc_type=klibc

  4603.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4604.         eval ${pfx}libc_type=bionic

  4605.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4606.         eval ${pfx}libc_type=solaris

  4607.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4608.     fi

  4609.     check_${pfx}cc <<EOF

  4610. #include <time.h>

  4611. void *v = localtime_r;

  4612. EOF

  4613. 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

  4614. #include <time.h>

  4615. void *v = localtime_r;

  4616. EOF

  4617. 

  4618. }

  4619. 

  4620. probe_libc

  4621. test -n "$libc_type" && enable libc_$libc_type

  4622. probe_libc host_

  4623. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  4624. 

  4625. case $libc_type in

  4626.     bionic)

  4627.         add_compat strtod.o strtod=avpriv_strtod

  4628.         ;;

  4629. esac

  4630. 

  4631. # hacks for compiler/libc/os combinations

  4632. 

  4633. if enabled_all tms470 libc_glibc; then

  4634.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  4635.     add_cppflags -D__USER_LABEL_PREFIX__=

  4636.     add_cppflags -D__builtin_memset=memset

  4637.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  4638.     add_cflags   -pds=48    # incompatible redefinition of macro

  4639. fi

  4640. 

  4641. if enabled_all ccc libc_glibc; then

  4642.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  4643. fi

  4644. 

  4645. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  4646.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  4647. 

  4648. esc(){

  4649.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  4650. }

  4651. 

  4652. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  4653. 

  4654. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  4655. 

  4656. set_default libdir

  4657. : ${shlibdir_default:="$libdir"}

  4658. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  4659. 

  4660. set_default $PATHS_LIST

  4661. set_default nm

  4662. 

  4663. # we need to build at least one lib type

  4664. if ! enabled_any static shared; then

  4665.     cat <<EOF

  4666. At least one library type must be built.

  4667. Specify --enable-static to build the static libraries or --enable-shared to

  4668. build the shared libraries as well. To only build the shared libraries specify

  4669. --disable-static in addition to --enable-shared.

  4670. EOF

  4671.     exit 1;

  4672. fi

  4673. 

  4674. die_license_disabled() {

  4675.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  4676. }

  4677. 

  4678. die_license_disabled_gpl() {

  4679.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  4680. }

  4681. 

  4682. die_license_disabled gpl frei0r

  4683. die_license_disabled gpl libcdio

  4684. die_license_disabled gpl librubberband

  4685. die_license_disabled gpl libsmbclient

  4686. die_license_disabled gpl libutvideo

  4687. die_license_disabled gpl libvidstab

  4688. die_license_disabled gpl libx264

  4689. die_license_disabled gpl libx265

  4690. die_license_disabled gpl libxavs

  4691. die_license_disabled gpl libxvid

  4692. die_license_disabled gpl libzvbi

  4693. die_license_disabled gpl x11grab

  4694. 

  4695. die_license_disabled nonfree libaacplus

  4696. die_license_disabled nonfree libfaac

  4697. die_license_disabled nonfree nvenc

  4698. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  4699. enabled gpl && die_license_disabled_gpl nonfree openssl

  4700. 

  4701. die_license_disabled version3 libopencore_amrnb

  4702. die_license_disabled version3 libopencore_amrwb

  4703. die_license_disabled version3 libsmbclient

  4704. die_license_disabled version3 libvo_aacenc

  4705. die_license_disabled version3 libvo_amrwbenc

  4706. 

  4707. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  4708. 

  4709. disabled optimizations || check_cflags -fomit-frame-pointer

  4710. 

  4711. enable_weak_pic() {

  4712.     disabled pic && return

  4713.     enable pic

  4714.     add_cppflags -DPIC

  4715.     case "$target_os" in

  4716.     mingw*|cygwin*)

  4717.         ;;

  4718.     *)

  4719.         add_cflags -fPIC

  4720.         ;;

  4721.     esac

  4722.     add_asflags  -fPIC

  4723. }

  4724. 

  4725. enabled pic && enable_weak_pic

  4726. 

  4727. check_cc <<EOF || die "Symbol mangling check failed."

  4728. int ff_extern;

  4729. EOF

  4730. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  4731. extern_prefix=${sym%%ff_extern*}

  4732. 

  4733. check_cc <<EOF && enable_weak inline_asm

  4734. void foo(void) { __asm__ volatile ("" ::); }

  4735. EOF

  4736. 

  4737. _restrict=

  4738. for restrict_keyword in restrict __restrict__ __restrict; do

  4739.     check_cc <<EOF && _restrict=$restrict_keyword && break

  4740. void foo(char * $restrict_keyword p);

  4741. EOF

  4742. done

  4743. 

  4744. check_cc <<EOF && enable pragma_deprecated

  4745. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  4746. EOF

  4747. 

  4748. check_cc <<EOF && enable attribute_packed

  4749. struct { int x; } __attribute__((packed)) x;

  4750. EOF

  4751. 

  4752. check_cc <<EOF && enable attribute_may_alias

  4753. union { int x; } __attribute__((may_alias)) x;

  4754. EOF

  4755. 

  4756. check_cc <<EOF || die "endian test failed"

  4757. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  4758. EOF

  4759. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  4760. 

  4761. if ! enabled ppc64 || enabled bigendian; then

  4762.     disable vsx

  4763. fi

  4764. 

  4765. check_gas() {

  4766.     log "check_gas using '$as' as AS"

  4767.     # :vararg is used on aarch64, arm and ppc altivec

  4768.     check_as <<EOF || return 1

  4769. .macro m n, y:vararg=0

  4770. \n: .int \y

  4771. .endm

  4772. m x

  4773. EOF

  4774.     # .altmacro is only used in arm asm

  4775.     ! enabled arm || check_as <<EOF || return 1

  4776. .altmacro

  4777. EOF

  4778.     enable gnu_as

  4779.     return 0

  4780. }

  4781. 

  4782. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  4783.     nogas=:

  4784.     enabled_any arm aarch64 && nogas=die

  4785.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  4786.     as_noop=-v

  4787. 

  4788.     case $as_type in

  4789.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  4790.         gcc)  gaspp_as_type=gas ;;

  4791.         *)    gaspp_as_type=$as_type ;;

  4792.     esac

  4793. 

  4794.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  4795. 

  4796.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  4797.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  4798.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  4799. 

  4800.     if ! check_gas ; then

  4801.         as=${gas:=$as}

  4802.         check_gas || \

  4803.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  4804.     fi

  4805. 

  4806.     check_as <<EOF && enable as_func

  4807. .func test

  4808. .endfunc

  4809. EOF

  4810. fi

  4811. 

  4812. check_inline_asm inline_asm_labels '"1:\n"'

  4813. 

  4814. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  4815. 

  4816. if enabled aarch64; then

  4817.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  4818.     # internal assembler in clang 3.3 does not support this instruction

  4819.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  4820.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  4821. 

  4822.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  4823. 

  4824. elif enabled alpha; then

  4825. 

  4826.     check_cflags -mieee

  4827. 

  4828. elif enabled arm; then

  4829. 

  4830.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  4831. 

  4832.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  4833. float func(float a, float b){ return a+b; }

  4834. EOF

  4835. 

  4836.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  4837. 

  4838.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  4839.         enable vfp_args

  4840.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  4841.         enable vfp_args

  4842.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  4843.         case "${cross_prefix:-$cc}" in

  4844.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  4845.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  4846. __asm__ (".eabi_attribute 28, 1");

  4847. int main(void) { return 0; }

  4848. EOF

  4849.         esac

  4850.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  4851.     fi

  4852. 

  4853.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  4854.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  4855.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  4856.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  4857.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  4858.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  4859.     enabled setend  && check_insn setend  'setend be'

  4860. 

  4861.     [ $target_os = linux ] || [ $target_os = android ] ||

  4862.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  4863.             $ARCH_EXT_LIST_ARM

  4864. 

  4865.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  4866. 

  4867.     check_as <<EOF && enable as_dn_directive

  4868. ra .dn d0.i16

  4869. .unreq ra

  4870. EOF

  4871. 

  4872.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  4873.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  4874. .object_arch armv4

  4875. EOF

  4876. 

  4877.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  4878. 

  4879. elif enabled mips; then

  4880. 

  4881.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  4882.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  4883.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  4884. 

  4885.     # Enable minimum ISA based on selected options

  4886.     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then

  4887.         add_cflags "-mips64r2"

  4888.         add_asflags "-mips64r2"

  4889.     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then

  4890.         add_cflags "-mips64"

  4891.         add_asflags "-mips64"

  4892.     elif enabled mipsdspr1 || enabled mipsdspr2; then

  4893.         add_cflags "-mips32r2 -mfp32"

  4894.         add_asflags "-mips32r2 -mfp32"

  4895.     elif enabled mips32r5 || enabled mips64r6; then

  4896.         check_cflags "-mfp64"

  4897.         check_ldflags "-mfp64"

  4898.     fi

  4899. 

  4900.     enabled mips32r5  && check_cflags "-mips32r5 -msched-weight -mload-store-pairs -funroll-loops" &&

  4901.      check_ldflags "-mips32r5" &&

  4902.      check_inline_asm mips32r5  '"ulw $t0, ($t1)"'

  4903.     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&

  4904.      check_ldflags "-mips64r6" &&

  4905.      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'

  4906.     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&

  4907.      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'

  4908.     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&

  4909.      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'

  4910.     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&

  4911.      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'

  4912.     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&

  4913.      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'

  4914. 

  4915.     enabled mips32r5 && add_asflags "-mips32r5 -mfp64"

  4916.     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"

  4917.     enabled msa && add_asflags "-mmsa"

  4918. 

  4919. elif enabled parisc; then

  4920. 

  4921.     if enabled gcc; then

  4922.         case $($cc -dumpversion) in

  4923.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  4924.         esac

  4925.     fi

  4926. 

  4927. elif enabled ppc; then

  4928. 

  4929.     enable local_aligned_8 local_aligned_16 local_aligned_32

  4930. 

  4931.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  4932.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  4933.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  4934.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  4935. 

  4936.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  4937.     if enabled altivec; then

  4938.         check_cflags -maltivec -mabi=altivec &&

  4939.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  4940.         check_cflags -faltivec

  4941. 

  4942.         # check if our compiler supports Motorola AltiVec C API

  4943.         check_cc <<EOF || disable altivec

  4944. $inc_altivec_h

  4945. int main(void) {

  4946.     vector signed int v1 = (vector signed int) { 0 };

  4947.     vector signed int v2 = (vector signed int) { 1 };

  4948.     v1 = vec_add(v1, v2);

  4949.     return 0;

  4950. }

  4951. EOF

  4952. 

  4953.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  4954.     fi

  4955. 

  4956.     if enabled vsx; then

  4957.         check_cflags -mvsx &&

  4958.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  4959.     fi

  4960. 

  4961.     if enabled power8; then

  4962.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  4963.     fi

  4964. 

  4965. elif enabled x86; then

  4966. 

  4967.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  4968.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  4969. 

  4970.     enable local_aligned_8 local_aligned_16 local_aligned_32

  4971. 

  4972.     # check whether EBP is available on x86

  4973.     # As 'i' is stored on the stack, this program will crash

  4974.     # if the base pointer is used to access it because the

  4975.     # base pointer is cleared in the inline assembly code.

  4976.     check_exec_crash <<EOF && enable ebp_available

  4977. volatile int i=0;

  4978. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  4979. return i;

  4980. EOF

  4981. 

  4982.     # check whether EBX is available on x86

  4983.     check_inline_asm ebx_available '""::"b"(0)' &&

  4984.         check_inline_asm ebx_available '"":::"%ebx"'

  4985. 

  4986.     # check whether xmm clobbers are supported

  4987.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  4988. 

  4989.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  4990.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  4991. 

  4992.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  4993.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  4994.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  4995. 

  4996.     if ! disabled_any asm mmx yasm; then

  4997.         if check_cmd $yasmexe --version; then

  4998.             enabled x86_64 && yasm_extra="-m amd64"

  4999.             yasm_debug="-g dwarf2"

  5000.         elif check_cmd nasm -v; then

  5001.             yasmexe=nasm

  5002.             yasm_debug="-g -F dwarf"

  5003.             if enabled x86_64; then

  5004.                 case "$objformat" in

  5005.                     elf)   objformat=elf64 ;;

  5006.                     win32) objformat=win64 ;;

  5007.                 esac

  5008.             fi

  5009.         fi

  5010. 

  5011.         YASMFLAGS="-f $objformat $yasm_extra"

  5012.         enabled pic               && append YASMFLAGS "-DPIC"

  5013.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5014.         case "$objformat" in

  5015.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5016.         esac

  5017. 

  5018.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5019.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5020.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5021.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5022.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5023.         check_yasm "CPU amdnop" || disable cpunop

  5024.     fi

  5025. 

  5026.     case "$cpu" in

  5027.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5028.             disable fast_clz

  5029.         ;;

  5030.     esac

  5031. 

  5032. fi

  5033. 

  5034. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5035. 

  5036. check_ldflags -Wl,--as-needed

  5037. check_ldflags -Wl,-z,noexecstack

  5038. 

  5039. if check_func dlopen; then

  5040.     ldl=

  5041. elif check_func dlopen -ldl; then

  5042.     ldl=-ldl

  5043. fi

  5044. 

  5045. frei0r_filter_extralibs='$ldl'

  5046. frei0r_src_filter_extralibs='$ldl'

  5047. ladspa_filter_extralibs='$ldl'

  5048. nvenc_encoder_extralibs='$ldl'

  5049. 

  5050. if ! disabled network; then

  5051.     check_func getaddrinfo $network_extralibs

  5052.     check_func getservbyport $network_extralibs

  5053.     check_func inet_aton $network_extralibs

  5054. 

  5055.     check_type netdb.h "struct addrinfo"

  5056.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5057.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5058.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5059.     check_type poll.h "struct pollfd"

  5060.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5061.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5062.     check_type netinet/in.h "struct sockaddr_in6"

  5063.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5064.     check_type "sys/types.h sys/socket.h" socklen_t

  5065. 

  5066.     # Prefer arpa/inet.h over winsock2

  5067.     if check_header arpa/inet.h ; then

  5068.         check_func closesocket

  5069.     elif check_header winsock2.h ; then

  5070.         check_func_headers winsock2.h closesocket -lws2 &&

  5071.             network_extralibs="-lws2" ||

  5072.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5073.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5074.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5075. 

  5076.         check_type ws2tcpip.h socklen_t

  5077.         check_type ws2tcpip.h "struct addrinfo"

  5078.         check_type ws2tcpip.h "struct group_source_req"

  5079.         check_type ws2tcpip.h "struct ip_mreq_source"

  5080.         check_type ws2tcpip.h "struct ipv6_mreq"

  5081.         check_type winsock2.h "struct pollfd"

  5082.         check_struct winsock2.h "struct sockaddr" sa_len

  5083.         check_type ws2tcpip.h "struct sockaddr_in6"

  5084.         check_type ws2tcpip.h "struct sockaddr_storage"

  5085.     else

  5086.         disable network

  5087.     fi

  5088. fi

  5089. 

  5090. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5091. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5092. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5093. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5094. check_builtin sarestart signal.h "SA_RESTART"

  5095. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5096. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5097. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5098. 

  5099. case "$custom_allocator" in

  5100.     jemalloc)

  5101.         # jemalloc by default does not use a prefix

  5102.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5103.     ;;

  5104.     tcmalloc)

  5105.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5106.         malloc_prefix=tc_

  5107.     ;;

  5108. esac

  5109. 

  5110. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5111. check_func  ${malloc_prefix}memalign            && enable memalign

  5112. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5113. 

  5114. check_func  access

  5115. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5116. check_func  fcntl

  5117. check_func  fork

  5118. check_func  gethrtime

  5119. check_func  getopt

  5120. check_func  getrusage

  5121. check_func  gettimeofday

  5122. check_func  isatty

  5123. check_func  mach_absolute_time

  5124. check_func  mkstemp

  5125. check_func  mmap

  5126. check_func  mprotect

  5127. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5128. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5129. check_func  sched_getaffinity

  5130. check_func  setrlimit

  5131. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5132. check_func  strerror_r

  5133. check_func  sysconf

  5134. check_func  sysctl

  5135. check_func  usleep

  5136. 

  5137. check_func_headers conio.h kbhit

  5138. check_func_headers io.h setmode

  5139. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5140. check_func_headers stdlib.h getenv

  5141. check_func_headers sys/stat.h lstat

  5142. 

  5143. check_func_headers windows.h CoTaskMemFree -lole32

  5144. check_func_headers windows.h GetProcessAffinityMask

  5145. check_func_headers windows.h GetProcessTimes

  5146. check_func_headers windows.h GetSystemTimeAsFileTime

  5147. check_func_headers windows.h MapViewOfFile

  5148. check_func_headers windows.h PeekNamedPipe

  5149. check_func_headers windows.h SetConsoleTextAttribute

  5150. check_func_headers windows.h SetConsoleCtrlHandler

  5151. check_func_headers windows.h Sleep

  5152. check_func_headers windows.h VirtualAlloc

  5153. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5154. check_func_headers glob.h glob

  5155. enabled xlib &&

  5156.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5157. 

  5158. check_header CoreServices/CoreServices.h

  5159. check_header direct.h

  5160. check_header dirent.h

  5161. check_header dlfcn.h

  5162. check_header d3d11.h

  5163. check_header dxva.h

  5164. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5165. check_header io.h

  5166. check_header libcrystalhd/libcrystalhd_if.h

  5167. check_header mach/mach_time.h

  5168. check_header malloc.h

  5169. check_header net/udplite.h

  5170. check_header poll.h

  5171. check_header sys/mman.h

  5172. check_header sys/param.h

  5173. check_header sys/resource.h

  5174. check_header sys/select.h

  5175. check_header sys/time.h

  5176. check_header sys/un.h

  5177. check_header termios.h

  5178. check_header unistd.h

  5179. check_header valgrind/valgrind.h

  5180. check_header vdpau/vdpau.h

  5181. check_header vdpau/vdpau_x11.h

  5182. check_header VideoDecodeAcceleration/VDADecoder.h

  5183. check_header VideoToolbox/VideoToolbox.h

  5184. check_header windows.h

  5185. check_header X11/extensions/XvMClib.h

  5186. check_header asm/types.h

  5187. 

  5188. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5189. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5190. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5191. 

  5192. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5193. 

  5194. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5195. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5196. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5197. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5198. 

  5199. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5200. 

  5201. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5202. 

  5203. if ! disabled w32threads && ! enabled pthreads; then

  5204.     check_func_headers "windows.h process.h" _beginthreadex &&

  5205.         enable w32threads || disable w32threads

  5206. fi

  5207. 

  5208. # check for some common methods of building with pthread support

  5209. # do this before the optional library checks as some of them require pthreads

  5210. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5211.     enable pthreads

  5212.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5213.         add_cflags -pthread

  5214.         add_extralibs -pthread

  5215.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5216.         add_cflags -pthreads

  5217.         add_extralibs -pthreads

  5218.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5219.         add_cflags -ldl -pthread

  5220.         add_extralibs -ldl -pthread

  5221.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5222.         add_extralibs -lpthreadGC2

  5223.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5224.         :

  5225.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5226.         disable pthreads

  5227.     fi

  5228.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5229. fi

  5230. 

  5231. 

  5232. if enabled pthreads; then

  5233.   check_func pthread_cancel

  5234. fi

  5235. 

  5236. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5237. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5238. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5239. 

  5240. check_lib math.h sin -lm && LIBM="-lm"

  5241. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5242. 

  5243. atan2f_args=2

  5244. copysign_args=2

  5245. ldexpf_args=2

  5246. powf_args=2

  5247. 

  5248. for func in $MATH_FUNCS; do

  5249.     eval check_mathfunc $func \${${func}_args:-1}

  5250. done

  5251. 

  5252. # these are off by default, so fail if requested and not available

  5253. enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5254. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5255.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5256. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5257.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5258.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5259. enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }

  5260. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5261. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5262. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5263. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5264. enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus

  5265. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5266. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5267. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5268. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5269.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5270.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5271. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5272. enabled libdcadec         && require_pkg_config dcadec libdcadec/dca_context.h dcadec_context_create &&

  5273.                              check_struct libdcadec/dca_context.h "struct dcadec_exss_info" matrix_encoding

  5274. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5275. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5276.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5277.                                  warn "using libfdk without pkg-config"; } }

  5278. 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"

  5279. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5280. enabled fontconfig        && enable libfontconfig

  5281. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5282. enabled libfreetype       && require_libfreetype

  5283. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5284. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5285. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5286.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5287.                                done || die "ERROR: libgsm not found"; }

  5288. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5289. enabled libkvazaar        && require_pkg_config kvazaar kvazaar.h kvz_api_get

  5290. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5291. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5292. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5293. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5294. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5295. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5296. enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader

  5297. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5298. enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||

  5299.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5300.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5301.                                die "ERROR: libopenjpeg not found"; }

  5302. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5303. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5304. enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init

  5305. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5306. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5307. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5308. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5309. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5310.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5311. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5312. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5313. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5314. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5315. enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h

  5316.     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h

  5317.     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static

  5318. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5319. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5320. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5321.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5322.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5323. enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++

  5324. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5325. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5326. enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc

  5327. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5328. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5329. 

  5330. enabled libvpx            && {

  5331.     enabled libvpx_vp8_decoder && {

  5332.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5333.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5334.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5335.     }

  5336.     enabled libvpx_vp8_encoder && {

  5337.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5338.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5339.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5340.     }

  5341.     enabled libvpx_vp9_decoder && {

  5342.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5343.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5344.                 disable libvpx_vp9_decoder;

  5345.     }

  5346.     enabled libvpx_vp9_encoder && {

  5347.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5348.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5349.                 disable libvpx_vp9_encoder;

  5350.     }

  5351.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5352.         die "libvpx enabled but no supported decoders found"

  5353.     fi

  5354. }

  5355. 

  5356. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5357. enabled libwebp           && {

  5358.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5359.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5360. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5361.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5362.                                  warn "using libx264 without pkg-config"; } } &&

  5363.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5364.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5365.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5366.                                enable libx262; }

  5367. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5368.                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||

  5369.                                die "ERROR: libx265 version must be >= 57."; }

  5370. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5371. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5372. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5373. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi

  5374. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5375.                                 { ! enabled cross_compile && {

  5376.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5377.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5378.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5379.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5380.                                die "ERROR: mmal not found"; }

  5381. enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&

  5382.                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||

  5383.                                die "ERROR: NVENC API version 4 or older is not supported"; } &&

  5384.                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }

  5385. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5386.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5387.                                die "ERROR: openal not found"; } &&

  5388.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5389.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5390. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5391.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5392.                                die "ERROR: opencl not found"; } &&

  5393.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5394.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5395.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5396. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5397.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5398.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5399.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5400.                                die "ERROR: opengl not found."

  5401.                              }

  5402. enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5403.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5404.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5405.                                die "ERROR: openssl not found"; }

  5406. enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }

  5407. 

  5408. if enabled gnutls; then

  5409.     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||

  5410.     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }

  5411. fi

  5412. 

  5413. # libdc1394 check

  5414. if enabled libdc1394; then

  5415.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5416.         enable libdc1394_2; } ||

  5417.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5418.         enable libdc1394_1; } ||

  5419.     die "ERROR: No version of libdc1394 found "

  5420. fi

  5421. if ! disabled sdl; then

  5422.     SDL_CONFIG="${cross_prefix}sdl-config"

  5423.     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then

  5424.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5425.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5426.         enable sdl

  5427.     else

  5428.         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then

  5429.             sdl_cflags=$("${SDL_CONFIG}" --cflags)

  5430.             sdl_libs=$("${SDL_CONFIG}" --libs)

  5431.             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&

  5432.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5433.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5434.             enable sdl

  5435.         elif enabled sdl ; then

  5436.             die "ERROR: SDL not found"

  5437.         else

  5438.             disable sdl

  5439.         fi

  5440.     fi

  5441.     if test $target_os = "mingw32"; then

  5442.         sdl_libs="$sdl_libs -mconsole"

  5443.     fi

  5444. fi

  5445. enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs

  5446. 

  5447. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5448.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5449.     enable securetransport; }

  5450. 

  5451. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5452. enabled makeinfo \

  5453.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5454.     && enable makeinfo_html || disable makeinfo_html

  5455. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5456. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5457. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5458. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5459. 

  5460. check_header linux/fb.h

  5461. check_header linux/videodev.h

  5462. check_header linux/videodev2.h

  5463. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5464. 

  5465. check_header sys/videoio.h

  5466. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5467. 

  5468. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5469. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5470. # w32api 3.12 had it defined wrong

  5471. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5472. 

  5473. check_type "dshow.h" IBaseFilter

  5474. 

  5475. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5476. { check_header dev/bktr/ioctl_meteor.h &&

  5477.   check_header dev/bktr/ioctl_bt848.h; } ||

  5478. { check_header machine/ioctl_meteor.h &&

  5479.   check_header machine/ioctl_bt848.h; } ||

  5480. { check_header dev/video/meteor/ioctl_meteor.h &&

  5481.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5482. check_header dev/ic/bt8xx.h

  5483. 

  5484. check_header sndio.h

  5485. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5486.     enable_safe sys/soundcard.h

  5487. else

  5488.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5489.     #include <sys/soundcard.h>

  5490.     audio_buf_info abc;

  5491. EOF

  5492. fi

  5493. check_header soundcard.h

  5494. 

  5495. enabled_any alsa_indev alsa_outdev &&

  5496.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5497. 

  5498. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&

  5499.     check_func jack_port_get_latency_range -ljack

  5500. 

  5501. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5502. 

  5503. if enabled libcdio; then

  5504.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5505.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5506.     die "ERROR: No usable libcdio/cdparanoia found"

  5507. fi

  5508. 

  5509. enabled xlib &&

  5510.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5511. 

  5512. if ! disabled libxcb; then

  5513.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5514.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5515.     } && disable x11grab && enable libxcb

  5516. 

  5517. if enabled libxcb; then

  5518.     disabled libxcb_shm || {

  5519.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5520.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5521.         } && check_header sys/shm.h && enable libxcb_shm; }

  5522. 

  5523.     disabled libxcb_xfixes || {

  5524.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5525.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5526.         } && enable libxcb_xfixes; }

  5527. 

  5528.     disabled libxcb_shape || {

  5529.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5530.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5531.         } && enable libxcb_shape; }

  5532. 

  5533.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5534.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5535. fi

  5536. fi

  5537. 

  5538. if enabled x11grab; then

  5539.     enabled xlib || die "ERROR: Xlib not found"

  5540.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5541.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5542. fi

  5543. 

  5544. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5545. 

  5546. enabled dxva2api_h &&

  5547.     check_cc <<EOF && enable dxva2api_cobj

  5548. #define _WIN32_WINNT 0x0600

  5549. #define COBJMACROS

  5550. #include <windows.h>

  5551. #include <d3d9.h>

  5552. #include <dxva2api.h>

  5553. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5554. EOF

  5555. 

  5556. enabled vaapi &&

  5557.     check_lib va/va.h vaInitialize -lva ||

  5558.     disable vaapi

  5559. 

  5560. enabled vaapi && enabled xlib &&

  5561.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  5562.     enable vaapi_x11

  5563. 

  5564. enabled vdpau &&

  5565.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  5566.     disable vdpau

  5567. 

  5568. enabled vdpau && enabled xlib &&

  5569.     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  5570.     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&

  5571.     enable vdpau_x11

  5572. 

  5573. # Funny iconv installations are not unusual, so check it after all flags have been set

  5574. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  5575. 

  5576. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  5577. 

  5578. # add some useful compiler flags if supported

  5579. check_cflags -Wdeclaration-after-statement

  5580. check_cflags -Wall

  5581. check_cflags -Wdisabled-optimization

  5582. check_cflags -Wpointer-arith

  5583. check_cflags -Wredundant-decls

  5584. check_cflags -Wwrite-strings

  5585. check_cflags -Wtype-limits

  5586. check_cflags -Wundef

  5587. check_cflags -Wmissing-prototypes

  5588. check_cflags -Wno-pointer-to-int-cast

  5589. check_cflags -Wstrict-prototypes

  5590. check_cflags -Wempty-body

  5591. enabled extra_warnings && check_cflags -Winline

  5592. 

  5593. check_disable_warning(){

  5594.     warning_flag=-W${1#-Wno-}

  5595.     test_cflags $warning_flag && add_cflags $1

  5596. }

  5597. 

  5598. check_disable_warning -Wno-parentheses

  5599. check_disable_warning -Wno-switch

  5600. check_disable_warning -Wno-format-zero-length

  5601. check_disable_warning -Wno-pointer-sign

  5602. 

  5603. # add some linker flags

  5604. check_ldflags -Wl,--warn-common

  5605. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  5606. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  5607. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  5608. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  5609. 

  5610. # add some strip flags

  5611. # -wN '..@*' is more selective than -x, but not available everywhere.

  5612. check_stripflags -wN \'..@*\' || check_stripflags -x

  5613. 

  5614. enabled neon_clobber_test &&

  5615.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5616.                   -Wl,--wrap,avcodec_decode_audio4      \

  5617.                   -Wl,--wrap,avcodec_decode_video2      \

  5618.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5619.                   -Wl,--wrap,avcodec_encode_audio2      \

  5620.                   -Wl,--wrap,avcodec_encode_video2      \

  5621.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5622.                   -Wl,--wrap,swr_convert                \

  5623.                   -Wl,--wrap,avresample_convert ||

  5624.     disable neon_clobber_test

  5625. 

  5626. enabled xmm_clobber_test &&

  5627.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5628.                   -Wl,--wrap,avcodec_decode_audio4      \

  5629.                   -Wl,--wrap,avcodec_decode_video2      \

  5630.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5631.                   -Wl,--wrap,avcodec_encode_audio2      \

  5632.                   -Wl,--wrap,avcodec_encode_video2      \

  5633.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5634.                   -Wl,--wrap,swr_convert                \

  5635.                   -Wl,--wrap,avresample_convert         \

  5636.                   -Wl,--wrap,sws_scale ||

  5637.     disable xmm_clobber_test

  5638. 

  5639. echo "X{};" > $TMPV

  5640. if test_ldflags -Wl,--version-script,$TMPV; then

  5641.     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'

  5642.     check_cc <<EOF && enable symver_asm_label

  5643. void ff_foo(void) __asm__ ("av_foo@VERSION");

  5644. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  5645. EOF

  5646.     check_cc <<EOF && enable symver_gnu_asm

  5647. __asm__(".symver ff_foo,av_foo@VERSION");

  5648. void ff_foo(void) {}

  5649. EOF

  5650. fi

  5651. 

  5652. if [ -z "$optflags" ]; then

  5653.     if enabled small; then

  5654.         optflags=$cflags_size

  5655.     elif enabled optimizations; then

  5656.         optflags=$cflags_speed

  5657.     else

  5658.         optflags=$cflags_noopt

  5659.     fi

  5660. fi

  5661. 

  5662. check_optflags(){

  5663.     check_cflags "$@"

  5664.     enabled lto && check_ldflags "$@"

  5665. }

  5666. 

  5667. 

  5668. if enabled lto; then

  5669.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  5670.     check_cflags  -flto

  5671.     check_ldflags -flto $cpuflags

  5672.     disable inline_asm_direct_symbol_refs

  5673. fi

  5674. 

  5675. check_optflags $optflags

  5676. check_optflags -fno-math-errno

  5677. check_optflags -fno-signed-zeros

  5678. 

  5679. enabled ftrapv && check_cflags -ftrapv

  5680. 

  5681. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  5682. int x;

  5683. EOF

  5684. 

  5685. 

  5686. if enabled icc; then

  5687.     # Just warnings, no remarks

  5688.     check_cflags -w1

  5689.     # -wd: Disable following warnings

  5690.     # 144, 167, 556: -Wno-pointer-sign

  5691.     # 188: enumerated type mixed with another type

  5692.     # 1292: attribute "foo" ignored

  5693.     # 1419: external declaration in primary source file

  5694.     # 10006: ignoring unknown option -fno-signed-zeros

  5695.     # 10148: ignoring unknown option -Wno-parentheses

  5696.     # 10156: ignoring option '-W'; no argument required

  5697.     # 13200: No EMMS instruction before call to function

  5698.     # 13203: No EMMS instruction before return from function

  5699.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  5700.     # 11030: Warning unknown option --as-needed

  5701.     # 10156: ignoring option '-export'; no argument required

  5702.     check_ldflags -wd10156,11030

  5703.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  5704.     enable ebp_available

  5705.     # The test above does not test linking

  5706.     enabled lto && disable symver_asm_label

  5707.     if enabled x86_32; then

  5708.         icc_version=$($cc -dumpversion)

  5709.         test ${icc_version%%.*} -ge 11 &&

  5710.             check_cflags -falign-stack=maintain-16-byte ||

  5711.             disable aligned_stack

  5712.     fi

  5713. elif enabled ccc; then

  5714.     # disable some annoying warnings

  5715.     add_cflags -msg_disable bitnotint

  5716.     add_cflags -msg_disable mixfuncvoid

  5717.     add_cflags -msg_disable nonstandcast

  5718.     add_cflags -msg_disable unsupieee

  5719. elif enabled gcc; then

  5720.     check_optflags -fno-tree-vectorize

  5721.     check_cflags -Werror=format-security

  5722.     check_cflags -Werror=implicit-function-declaration

  5723.     check_cflags -Werror=missing-prototypes

  5724.     check_cflags -Werror=return-type

  5725.     check_cflags -Werror=vla

  5726.     check_cflags -Wformat

  5727.     check_cflags -fdiagnostics-color=auto

  5728.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  5729. elif enabled llvm_gcc; then

  5730.     check_cflags -mllvm -stack-alignment=16

  5731. elif enabled clang; then

  5732.     check_cflags -mllvm -stack-alignment=16

  5733.     check_cflags -Qunused-arguments

  5734.     check_cflags -Werror=implicit-function-declaration

  5735.     check_cflags -Werror=missing-prototypes

  5736.     check_cflags -Werror=return-type

  5737. elif enabled cparser; then

  5738.     add_cflags -Wno-missing-variable-declarations

  5739.     add_cflags -Wno-empty-statement

  5740. elif enabled armcc; then

  5741.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  5742.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  5743.     # 2523: use of inline assembly is deprecated

  5744.     add_cflags -W${armcc_opt},--diag_suppress=2523

  5745.     add_cflags -W${armcc_opt},--diag_suppress=1207

  5746.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  5747.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  5748.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  5749.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  5750. elif enabled tms470; then

  5751.     add_cflags -pds=824 -pds=837

  5752.     disable inline_asm

  5753. elif enabled pathscale; then

  5754.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  5755. elif enabled_any msvc icl; then

  5756.     enabled x86_32 && disable aligned_stack

  5757.     enabled_all x86_32 debug && add_cflags -Oy-

  5758.     enabled debug && add_ldflags -debug

  5759.     enable pragma_deprecated

  5760.     if enabled icl; then

  5761.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  5762.         # (correctly) on icl 13.x.

  5763.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  5764.             add_cflags -Qansi-alias

  5765.         # Some inline asm is not compilable in debug

  5766.         if enabled debug; then

  5767.             disable ebp_available

  5768.             disable ebx_available

  5769.         fi

  5770.     fi

  5771.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  5772.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  5773.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  5774.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  5775.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  5776.     # MSVC 2013 and newer can handle it fine.

  5777.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  5778.     # happens in config.h.

  5779.     if [ $_restrict != restrict ]; then

  5780.         check_cc <<EOF || add_cflags -FIstdlib.h

  5781. __declspec($_restrict) void* foo(int);

  5782. EOF

  5783.     fi

  5784.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5785. fi

  5786. 

  5787. for pfx in "" host_; do

  5788.     varname=${pfx%_}cc_type

  5789.     eval "type=\$$varname"

  5790.     if [ $type = "msvc" ]; then

  5791.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  5792. static inline int foo(int a) { return a; }

  5793. EOF

  5794.     fi

  5795. done

  5796. 

  5797. case $as_type in

  5798.     clang)

  5799.         add_asflags -Qunused-arguments

  5800.     ;;

  5801. esac

  5802. 

  5803. case $ld_type in

  5804.     clang)

  5805.         check_ldflags -Qunused-arguments

  5806.     ;;

  5807. esac

  5808. 

  5809. case $target_os in

  5810.     osf1)

  5811.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  5812.     ;;

  5813.     plan9)

  5814.         add_cppflags -Dmain=plan9_main

  5815.     ;;

  5816. esac

  5817. 

  5818. enable frame_thread_encoder

  5819. 

  5820. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  5821. 

  5822. check_deps $CONFIG_LIST       \

  5823.            $CONFIG_EXTRA      \

  5824.            $HAVE_LIST         \

  5825.            $ALL_COMPONENTS    \

  5826. 

  5827. 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"

  5828. 

  5829. 

  5830. if test $target_os = "haiku"; then

  5831.     disable memalign

  5832.     disable posix_memalign

  5833. fi

  5834. 

  5835. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  5836.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  5837.     enable dxva2_lib

  5838. 

  5839. ! enabled_any memalign posix_memalign aligned_malloc &&

  5840.     enabled simd_align_16 && enable memalign_hack

  5841. 

  5842. # add_dep lib dep

  5843. # -> enable ${lib}_deps_${dep}

  5844. # -> add $dep to ${lib}_deps only once

  5845. add_dep() {

  5846.     lib=$1

  5847.     dep=$2

  5848.     enabled "${lib}_deps_${dep}" && return 0

  5849.     enable  "${lib}_deps_${dep}"

  5850.     prepend "${lib}_deps" $dep

  5851. }

  5852. 

  5853. # merge deps lib components

  5854. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  5855. merge_deps() {

  5856.     lib=$1

  5857.     shift

  5858.     for comp in $*; do

  5859.         enabled $comp || continue

  5860.         eval "dep=\"\$${comp}_deps\""

  5861.         for d in $dep; do

  5862.             add_dep $lib $d

  5863.         done

  5864.     done

  5865. }

  5866. 

  5867. merge_deps libavfilter $FILTER_LIST

  5868. 

  5869. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  5870. 

  5871. for thread in $THREADS_LIST; do

  5872.     if enabled $thread; then

  5873.         test -n "$thread_type" &&

  5874.             die "ERROR: Only one thread type must be selected." ||

  5875.             thread_type="$thread"

  5876.     fi

  5877. done

  5878. 

  5879. enabled zlib && add_cppflags -DZLIB_CONST

  5880. 

  5881. # conditional library dependencies, in linking order

  5882. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  5883. enabled aresample_filter    && prepend avfilter_deps "swresample"

  5884. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  5885. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  5886. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  5887. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  5888. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  5889. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  5890. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  5891. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  5892. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  5893. enabled pan_filter          && prepend avfilter_deps "swresample"

  5894. enabled pp_filter           && prepend avfilter_deps "postproc"

  5895. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  5896. enabled resample_filter && prepend avfilter_deps "avresample"

  5897. enabled sab_filter          && prepend avfilter_deps "swscale"

  5898. enabled scale_filter    && prepend avfilter_deps "swscale"

  5899. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  5900. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  5901. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  5902. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  5903. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  5904. 

  5905. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  5906. 

  5907. enabled opus_decoder    && prepend avcodec_deps "swresample"

  5908. 

  5909. expand_deps(){

  5910.     lib_deps=${1}_deps

  5911.     eval "deps=\$$lib_deps"

  5912.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  5913.     unique $lib_deps

  5914. }

  5915. 

  5916. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  5917. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  5918. 

  5919. map 'expand_deps $v' $LIBRARY_LIST

  5920. 

  5921. echo "install prefix            $prefix"

  5922. echo "source path               $source_path"

  5923. echo "C compiler                $cc"

  5924. echo "C library                 $libc_type"

  5925. if test "$host_cc" != "$cc"; then

  5926.     echo "host C compiler           $host_cc"

  5927.     echo "host C library            $host_libc_type"

  5928. fi

  5929. echo "ARCH                      $arch ($cpu)"

  5930. if test "$build_suffix" != ""; then

  5931.     echo "build suffix              $build_suffix"

  5932. fi

  5933. if test "$progs_suffix" != ""; then

  5934.     echo "progs suffix              $progs_suffix"

  5935. fi

  5936. if test "$extra_version" != ""; then

  5937.     echo "version string suffix     $extra_version"

  5938. fi

  5939. echo "big-endian                ${bigendian-no}"

  5940. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  5941. if enabled x86; then

  5942.     echo "${yasmexe}                      ${yasm-no}"

  5943.     echo "MMX enabled               ${mmx-no}"

  5944.     echo "MMXEXT enabled            ${mmxext-no}"

  5945.     echo "3DNow! enabled            ${amd3dnow-no}"

  5946.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  5947.     echo "SSE enabled               ${sse-no}"

  5948.     echo "SSSE3 enabled             ${ssse3-no}"

  5949.     echo "AVX enabled               ${avx-no}"

  5950.     echo "XOP enabled               ${xop-no}"

  5951.     echo "FMA3 enabled              ${fma3-no}"

  5952.     echo "FMA4 enabled              ${fma4-no}"

  5953.     echo "i686 features enabled     ${i686-no}"

  5954.     echo "CMOV is fast              ${fast_cmov-no}"

  5955.     echo "EBX available             ${ebx_available-no}"

  5956.     echo "EBP available             ${ebp_available-no}"

  5957. fi

  5958. if enabled aarch64; then

  5959.     echo "NEON enabled              ${neon-no}"

  5960.     echo "VFP enabled               ${vfp-no}"

  5961. fi

  5962. if enabled arm; then

  5963.     echo "ARMv5TE enabled           ${armv5te-no}"

  5964.     echo "ARMv6 enabled             ${armv6-no}"

  5965.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  5966.     echo "VFP enabled               ${vfp-no}"

  5967.     echo "NEON enabled              ${neon-no}"

  5968.     echo "THUMB enabled             ${thumb-no}"

  5969. fi

  5970. if enabled mips; then

  5971.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  5972.     echo "MIPS32R5 enabled          ${mips32r5-no}"

  5973.     echo "MIPS64R6 enabled          ${mips64r6-no}"

  5974.     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"

  5975.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  5976.     echo "MIPS MSA enabled          ${msa-no}"

  5977.     echo "LOONGSON MMI enabled      ${mmi-no}"

  5978. fi

  5979. if enabled ppc; then

  5980.     echo "AltiVec enabled           ${altivec-no}"

  5981.     echo "VSX enabled               ${vsx-no}"

  5982.     echo "POWER8 enabled            ${power8-no}"

  5983.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  5984.     echo "dcbzl available           ${dcbzl-no}"

  5985. fi

  5986. echo "debug symbols             ${debug-no}"

  5987. echo "strip symbols             ${stripping-no}"

  5988. echo "optimize for size         ${small-no}"

  5989. echo "optimizations             ${optimizations-no}"

  5990. echo "static                    ${static-no}"

  5991. echo "shared                    ${shared-no}"

  5992. echo "postprocessing support    ${postproc-no}"

  5993. echo "new filter support        ${avfilter-no}"

  5994. echo "network support           ${network-no}"

  5995. echo "threading support         ${thread_type-no}"

  5996. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  5997. echo "SDL support               ${sdl-no}"

  5998. echo "opencl enabled            ${opencl-no}"

  5999. echo "texi2html enabled         ${texi2html-no}"

  6000. echo "perl enabled              ${perl-no}"

  6001. echo "pod2man enabled           ${pod2man-no}"

  6002. echo "makeinfo enabled          ${makeinfo-no}"

  6003. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6004. test -n "$random_seed" &&

  6005.     echo "random seed               ${random_seed}"

  6006. echo

  6007. 

  6008. echo "Enabled programs:"

  6009. print_enabled '' $PROGRAM_LIST | print_in_columns

  6010. echo

  6011. 

  6012. echo "External libraries:"

  6013. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6014. echo

  6015. 

  6016. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6017.     echo "Enabled ${type}s:"

  6018.     eval list=\$$(toupper $type)_LIST

  6019.     print_enabled '_*' $list | print_in_columns

  6020.     echo

  6021. done

  6022. 

  6023. license="LGPL version 2.1 or later"

  6024. if enabled nonfree; then

  6025.     license="nonfree and unredistributable"

  6026. elif enabled gplv3; then

  6027.     license="GPL version 3 or later"

  6028. elif enabled lgplv3; then

  6029.     license="LGPL version 3 or later"

  6030. elif enabled gpl; then

  6031.     license="GPL version 2 or later"

  6032. fi

  6033. 

  6034. echo "License: $license"

  6035. 

  6036. echo "Creating config.mak, config.h, and doc/config.texi..."

  6037. 

  6038. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6039. 

  6040. enabled stripping || strip="echo skipping strip"

  6041. 

  6042. config_files="$TMPH config.mak doc/config.texi"

  6043. 

  6044. cat > config.mak <<EOF

  6045. # Automatically generated by configure - do not modify!

  6046. ifndef FFMPEG_CONFIG_MAK

  6047. FFMPEG_CONFIG_MAK=1

  6048. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6049. prefix=$prefix

  6050. LIBDIR=\$(DESTDIR)$libdir

  6051. SHLIBDIR=\$(DESTDIR)$shlibdir

  6052. INCDIR=\$(DESTDIR)$incdir

  6053. BINDIR=\$(DESTDIR)$bindir

  6054. DATADIR=\$(DESTDIR)$datadir

  6055. DOCDIR=\$(DESTDIR)$docdir

  6056. MANDIR=\$(DESTDIR)$mandir

  6057. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6058. SRC_PATH=$source_path

  6059. ifndef MAIN_MAKEFILE

  6060. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6061. endif

  6062. CC_IDENT=$cc_ident

  6063. ARCH=$arch

  6064. INTRINSICS=$intrinsics

  6065. CC=$cc

  6066. CXX=$cxx

  6067. AS=$as

  6068. LD=$ld

  6069. DEPCC=$dep_cc

  6070. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6071. DEPAS=$as

  6072. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6073. YASM=$yasmexe

  6074. DEPYASM=$yasmexe

  6075. AR=$ar

  6076. ARFLAGS=$arflags

  6077. AR_O=$ar_o

  6078. RANLIB=$ranlib

  6079. STRIP=$strip

  6080. CP=cp -p

  6081. LN_S=$ln_s

  6082. CPPFLAGS=$CPPFLAGS

  6083. CFLAGS=$CFLAGS

  6084. CXXFLAGS=$CXXFLAGS

  6085. ASFLAGS=$ASFLAGS

  6086. AS_C=$AS_C

  6087. AS_O=$AS_O

  6088. CC_C=$CC_C

  6089. CC_E=$CC_E

  6090. CC_O=$CC_O

  6091. CXX_C=$CXX_C

  6092. CXX_O=$CXX_O

  6093. LD_O=$LD_O

  6094. LD_LIB=$LD_LIB

  6095. LD_PATH=$LD_PATH

  6096. DLLTOOL=$dlltool

  6097. WINDRES=$windres

  6098. DEPWINDRES=$dep_cc

  6099. DOXYGEN=$doxygen

  6100. LDFLAGS=$LDFLAGS

  6101. LDEXEFLAGS=$LDEXEFLAGS

  6102. LDLIBFLAGS=$LDLIBFLAGS

  6103. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6104. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6105. YASMFLAGS=$YASMFLAGS

  6106. BUILDSUF=$build_suffix

  6107. PROGSSUF=$progs_suffix

  6108. FULLNAME=$FULLNAME

  6109. LIBPREF=$LIBPREF

  6110. LIBSUF=$LIBSUF

  6111. LIBNAME=$LIBNAME

  6112. SLIBPREF=$SLIBPREF

  6113. SLIBSUF=$SLIBSUF

  6114. EXESUF=$EXESUF

  6115. EXTRA_VERSION=$extra_version

  6116. CCDEP=$CCDEP

  6117. CXXDEP=$CXXDEP

  6118. CCDEP_FLAGS=$CCDEP_FLAGS

  6119. ASDEP=$ASDEP

  6120. ASDEP_FLAGS=$ASDEP_FLAGS

  6121. CC_DEPFLAGS=$CC_DEPFLAGS

  6122. AS_DEPFLAGS=$AS_DEPFLAGS

  6123. HOSTCC=$host_cc

  6124. HOSTLD=$host_ld

  6125. HOSTCFLAGS=$host_cflags

  6126. HOSTCPPFLAGS=$host_cppflags

  6127. HOSTEXESUF=$HOSTEXESUF

  6128. HOSTLDFLAGS=$host_ldflags

  6129. HOSTLIBS=$host_libs

  6130. DEPHOSTCC=$host_cc

  6131. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6132. HOSTCCDEP=$HOSTCCDEP

  6133. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6134. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6135. HOSTCC_C=$HOSTCC_C

  6136. HOSTCC_O=$HOSTCC_O

  6137. HOSTLD_O=$HOSTLD_O

  6138. TARGET_EXEC=$target_exec $target_exec_args

  6139. TARGET_PATH=$target_path

  6140. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6141. CFLAGS-ffplay=$sdl_cflags

  6142. ZLIB=$($ldflags_filter -lz)

  6143. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6144. EXTRALIBS=$extralibs

  6145. COMPAT_OBJS=$compat_objs

  6146. EXEOBJS=$exeobjs

  6147. INSTALL=$install

  6148. LIBTARGET=${LIBTARGET}

  6149. SLIBNAME=${SLIBNAME}

  6150. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6151. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6152. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6153. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6154. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6155. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6156. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6157. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6158. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6159. NOREDZONE_FLAGS=$noredzone_flags

  6160. EOF

  6161. 

  6162. get_version(){

  6163.     lcname=lib${1}

  6164.     name=$(toupper $lcname)

  6165.     file=$source_path/$lcname/version.h

  6166.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6167.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6168.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6169.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6170.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6171.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6172. }

  6173. 

  6174. map 'get_version $v' $LIBRARY_LIST

  6175. 

  6176. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6177. 

  6178. print_program_libs(){

  6179.     eval "program_libs=\$${1}_libs"

  6180.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6181. }

  6182. 

  6183. map 'print_program_libs $v' $PROGRAM_LIST

  6184. 

  6185. cat > $TMPH <<EOF

  6186. /* Automatically generated by configure - do not modify! */

  6187. #ifndef FFMPEG_CONFIG_H

  6188. #define FFMPEG_CONFIG_H

  6189. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6190. #define FFMPEG_LICENSE "$(c_escape $license)"

  6191. #define CONFIG_THIS_YEAR 2015

  6192. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6193. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6194. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6195. #define av_restrict $_restrict

  6196. #define EXTERN_PREFIX "${extern_prefix}"

  6197. #define EXTERN_ASM ${extern_prefix}

  6198. #define BUILDSUF "$build_suffix"

  6199. #define SLIBSUF "$SLIBSUF"

  6200. #define HAVE_MMX2 HAVE_MMXEXT

  6201. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6202. EOF

  6203. 

  6204. test -n "$assert_level" &&

  6205.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6206. 

  6207. test -n "$malloc_prefix" &&

  6208.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6209. 

  6210. if enabled yasm; then

  6211.     append config_files $TMPASM

  6212.     printf '' >$TMPASM

  6213. fi

  6214. 

  6215. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6216. 

  6217. 

  6218. mkdir -p doc

  6219. mkdir -p tests

  6220. mkdir -p tests/api

  6221. echo "@c auto-generated by configure" > doc/config.texi

  6222. 

  6223. print_config ARCH_   "$config_files" $ARCH_LIST

  6224. print_config HAVE_   "$config_files" $HAVE_LIST

  6225. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6226.                                      $CONFIG_EXTRA      \

  6227.                                      $ALL_COMPONENTS    \

  6228. 

  6229. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6230. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6231. 

  6232. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6233. cp_if_changed $TMPH config.h

  6234. touch .config

  6235. 

  6236. enabled yasm && cp_if_changed $TMPASM config.asm

  6237. 

  6238. cat > $TMPH <<EOF

  6239. /* Generated by ffconf */

  6240. #ifndef AVUTIL_AVCONFIG_H

  6241. #define AVUTIL_AVCONFIG_H

  6242. EOF

  6243. 

  6244. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6245. 

  6246. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6247. 

  6248. cp_if_changed $TMPH libavutil/avconfig.h

  6249. 

  6250. if test -n "$WARNINGS"; then

  6251.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6252.     enabled fatal_warnings && exit 1

  6253. fi

  6254. 

  6255. # build pkg-config files

  6256. 

  6257. lib_version(){

  6258.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6259. }

  6260. 

  6261. pkgconfig_generate(){

  6262.     name=$1

  6263.     shortname=${name#lib}${build_suffix}

  6264.     comment=$2

  6265.     version=$3

  6266.     libs=$4

  6267.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6268.     requires=${requires%, }

  6269.     enabled ${name#lib} || return 0

  6270.     mkdir -p $name

  6271.     cat <<EOF > $name/$name${build_suffix}.pc

  6272. prefix=$prefix

  6273. exec_prefix=\${prefix}

  6274. libdir=$libdir

  6275. includedir=$incdir

  6276. 

  6277. Name: $name

  6278. Description: $comment

  6279. Version: $version

  6280. Requires: $(enabled shared || echo $requires)

  6281. Requires.private: $(enabled shared && echo $requires)

  6282. Conflicts:

  6283. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6284. Libs.private: $(enabled shared && echo $libs)

  6285. Cflags: -I\${includedir}

  6286. EOF

  6287. 

  6288. mkdir -p doc/examples/pc-uninstalled

  6289. includedir=${source_path}

  6290. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6291.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6292. prefix=

  6293. exec_prefix=

  6294. libdir=\${pcfiledir}/../../../$name

  6295. includedir=${includedir}

  6296. 

  6297. Name: $name

  6298. Description: $comment

  6299. Version: $version

  6300. Requires: $requires

  6301. Conflicts:

  6302. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6303. Cflags: -I\${includedir}

  6304. EOF

  6305. }

  6306. 

  6307. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6308. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6309. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6310. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6311. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6312. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6313. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6314. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6315. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"