falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75442 Commits
32 Branches
283MB
Tree: 094a1985d6
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '094a1985d6'
${ noResults }
FFmpeg/configure

6283 lines
199KB
Raw Blame History 

  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-libquvi         enable quvi input via libquvi [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  258.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  278.   --enable-opencl          enable OpenCL code

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

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

  281.                            if gnutls is not used [no]

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

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

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

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

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

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

  288. 

  289. Toolchain options:

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

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

  292.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  337. 

  338. Advanced options (experts only):

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

  340.   --disable-symver         disable symbol versioning

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

  342.   --disable-safe-bitstream-reader

  343.                            disable buffer boundary checking in bitreaders

  344.                            (faster, but may crash)

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

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

  347. 

  348. Optimization options (experts only):

  349.   --disable-asm            disable all assembly optimizations

  350.   --disable-altivec        disable AltiVec optimizations

  351.   --disable-vsx            disable VSX optimizations

  352.   --disable-power8         disable POWER8 optimizations

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

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

  355.   --disable-mmx            disable MMX optimizations

  356.   --disable-mmxext         disable MMXEXT optimizations

  357.   --disable-sse            disable SSE optimizations

  358.   --disable-sse2           disable SSE2 optimizations

  359.   --disable-sse3           disable SSE3 optimizations

  360.   --disable-ssse3          disable SSSE3 optimizations

  361.   --disable-sse4           disable SSE4 optimizations

  362.   --disable-sse42          disable SSE4.2 optimizations

  363.   --disable-avx            disable AVX optimizations

  364.   --disable-xop            disable XOP optimizations

  365.   --disable-fma3           disable FMA3 optimizations

  366.   --disable-fma4           disable FMA4 optimizations

  367.   --disable-avx2           disable AVX2 optimizations

  368.   --disable-armv5te        disable armv5te optimizations

  369.   --disable-armv6          disable armv6 optimizations

  370.   --disable-armv6t2        disable armv6t2 optimizations

  371.   --disable-vfp            disable VFP optimizations

  372.   --disable-neon           disable NEON optimizations

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

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

  375.   --disable-mips32r5       disable MIPS32R5 optimizations

  376.   --disable-mips64r6       disable MIPS64R6 optimizations

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

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

  379.   --disable-msa            disable MSA optimizations

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

  381.   --disable-mmi            disable Loongson SIMD optimizations

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

  383. 

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

  385.   --disable-debug          disable debugging symbols

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

  387.   --disable-optimizations  disable compiler optimizations

  388.   --enable-extra-warnings  enable more compiler warnings

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

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

  391.                            2 causes a slowdown at runtime.

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

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

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

  395.                            Cannot be combined with --target-exec

  396.   --enable-ftrapv          Trap arithmetic overflows

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

  398.                            \$FATE_SAMPLES at make invocation time.

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

  400.                            used only for debugging purposes)

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

  402.                            should be used only for debugging purposes)

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

  404.   --disable-random

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

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

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

  408.                            (group) and PROB the probability associated with

  409.                            NAME (default 0.5).

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

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

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

  413. 

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

  415. EOF

  416.   exit 0

  417. }

  418. 

  419. quotes='""'

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

  421.     ncolors=$(tput colors)

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

  423.         bold_color=$(tput bold)

  424.         warn_color=$(tput setaf 3)

  425.         error_color=$(tput setaf 1)

  426.         reset_color=$(tput sgr0)

  427.     fi

  428.     # 72 used instead of 80 since that's the default of pr

  429.     ncols=$(tput cols)

  430. fi

  431. : ${ncols:=72}

  432. 

  433. log(){

  434.     echo "$@" >> $logfile

  435. }

  436. 

  437. log_file(){

  438.     log BEGIN $1

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

  440.     log END $1

  441. }

  442. 

  443. warn(){

  444.     log "WARNING: $*"

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

  446. }

  447. 

  448. die(){

  449.     log "$@"

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

  451.     cat <<EOF

  452. 

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

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

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

  456. EOF

  457.     if disabled logging; then

  458.         cat <<EOF

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

  460. include the log this produces with your report.

  461. EOF

  462.     else

  463.         cat <<EOF

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

  465. solve the problem.

  466. EOF

  467.     fi

  468.     exit 1

  469. }

  470. 

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

  472. toupper(){

  473.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  474. }

  475. 

  476. tolower(){

  477.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  478. }

  479. 

  480. c_escape(){

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

  482. }

  483. 

  484. sh_quote(){

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

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

  487.     echo "$v"

  488. }

  489. 

  490. cleanws(){

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

  492. }

  493. 

  494. filter(){

  495.     pat=$1

  496.     shift

  497.     for v; do

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

  499.     done

  500. }

  501. 

  502. filter_out(){

  503.     pat=$1

  504.     shift

  505.     for v; do

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

  507.     done

  508. }

  509. 

  510. map(){

  511.     m=$1

  512.     shift

  513.     for v; do eval $m; done

  514. }

  515. 

  516. add_suffix(){

  517.     suffix=$1

  518.     shift

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

  520. }

  521. 

  522. set_all(){

  523.     value=$1

  524.     shift

  525.     for var in $*; do

  526.         eval $var=$value

  527.     done

  528. }

  529. 

  530. set_weak(){

  531.     value=$1

  532.     shift

  533.     for var; do

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

  535.     done

  536. }

  537. 

  538. sanitize_var_name(){

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

  540. }

  541. 

  542. set_safe(){

  543.     var=$1

  544.     shift

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

  546. }

  547. 

  548. get_safe(){

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

  550. }

  551. 

  552. pushvar(){

  553.     for pvar in $*; do

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

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

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

  557.     done

  558. }

  559. 

  560. popvar(){

  561.     for pvar in $*; do

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

  563.         test $level = 0 && continue

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

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

  566.         eval ${pvar}_level=$level

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

  568.     done

  569. }

  570. 

  571. enable(){

  572.     set_all yes $*

  573. }

  574. 

  575. disable(){

  576.     set_all no $*

  577. }

  578. 

  579. enable_weak(){

  580.     set_weak yes $*

  581. }

  582. 

  583. disable_weak(){

  584.     set_weak no $*

  585. }

  586. 

  587. enable_safe(){

  588.     for var; do

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

  590.     done

  591. }

  592. 

  593. disable_safe(){

  594.     for var; do

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

  596.     done

  597. }

  598. 

  599. do_enable_deep(){

  600.     for var; do

  601.         enabled $var && continue

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

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

  604.         pushvar var sgs

  605.         enable_deep $sel

  606.         popvar sgs

  607.         enable_deep_weak $sgs

  608.         popvar var

  609.     done

  610. }

  611. 

  612. enable_deep(){

  613.     do_enable_deep $*

  614.     enable $*

  615. }

  616. 

  617. enable_deep_weak(){

  618.     for var; do

  619.         disabled $var && continue

  620.         pushvar var

  621.         do_enable_deep $var

  622.         popvar var

  623.         enable_weak $var

  624.     done

  625. }

  626. 

  627. enabled(){

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

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

  630. }

  631. 

  632. disabled(){

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

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

  635. }

  636. 

  637. enabled_all(){

  638.     for opt; do

  639.         enabled $opt || return 1

  640.     done

  641. }

  642. 

  643. disabled_all(){

  644.     for opt; do

  645.         disabled $opt || return 1

  646.     done

  647. }

  648. 

  649. enabled_any(){

  650.     for opt; do

  651.         enabled $opt && return 0

  652.     done

  653. }

  654. 

  655. disabled_any(){

  656.     for opt; do

  657.         disabled $opt && return 0

  658.     done

  659.     return 1

  660. }

  661. 

  662. set_default(){

  663.     for opt; do

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

  665.     done

  666. }

  667. 

  668. is_in(){

  669.     value=$1

  670.     shift

  671.     for var in $*; do

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

  673.     done

  674.     return 1

  675. }

  676. 

  677. do_check_deps(){

  678.     for cfg; do

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

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

  681.         disabled ${cfg}_checking && continue

  682.         enable ${cfg}_checking

  683.         append allopts $cfg

  684. 

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

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

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

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

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

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

  691. 

  692.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  694.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  695. 

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

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

  698.         enabled_all  $dep_all || disable $cfg

  699.         enabled_any  $dep_any || disable $cfg

  700.         disabled_any $dep_sel && disable $cfg

  701. 

  702.         if enabled $cfg; then

  703.             enable_deep $dep_sel

  704.             enable_deep_weak $dep_sgs

  705.         fi

  706. 

  707.         disable ${cfg}_checking

  708.     done

  709. }

  710. 

  711. check_deps(){

  712.     unset allopts

  713. 

  714.     do_check_deps "$@"

  715. 

  716.     for cfg in $allopts; do

  717.         enabled $cfg || continue

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

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

  720.     done

  721. }

  722. 

  723. print_config(){

  724.     pfx=$1

  725.     files=$2

  726.     shift 2

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

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

  729.         {

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

  731.             v = \$2;

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

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

  734.             for (f in files) {

  735.                 file = files[f];

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

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

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

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

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

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

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

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

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

  745.                     yesno = \$2;

  746.                     c2 = tolower(c);

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

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

  749.                 }

  750.             }

  751.         }"

  752. }

  753. 

  754. print_enabled(){

  755.     suf=$1

  756.     shift

  757.     for v; do

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

  759.     done

  760. }

  761. 

  762. append(){

  763.     var=$1

  764.     shift

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

  766. }

  767. 

  768. prepend(){

  769.     var=$1

  770.     shift

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

  772. }

  773. 

  774. unique(){

  775.     var=$1

  776.     uniq_list=""

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

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

  779.     done

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

  781. }

  782. 

  783. add_cppflags(){

  784.     append CPPFLAGS "$@"

  785. }

  786. 

  787. add_cflags(){

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

  789. }

  790. 

  791. add_cxxflags(){

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

  793. }

  794. 

  795. add_asflags(){

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

  797. }

  798. 

  799. add_ldflags(){

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

  801. }

  802. 

  803. add_ldexeflags(){

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

  805. }

  806. 

  807. add_ldlibflags(){

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

  809. }

  810. 

  811. add_stripflags(){

  812.     append ASMSTRIPFLAGS "$@"

  813. }

  814. 

  815. add_extralibs(){

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

  817. }

  818. 

  819. add_host_cppflags(){

  820.     append host_cppflags "$@"

  821. }

  822. 

  823. add_host_cflags(){

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

  825. }

  826. 

  827. add_host_ldflags(){

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

  829. }

  830. 

  831. add_compat(){

  832.     append compat_objs $1

  833.     shift

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

  835. }

  836. 

  837. check_cmd(){

  838.     log "$@"

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

  840. }

  841. 

  842. check_stat(){

  843.     log check_stat "$@"

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

  845. }

  846. 

  847. cc_o(){

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

  849. }

  850. 

  851. cc_e(){

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

  853. }

  854. 

  855. check_cc(){

  856.     log check_cc "$@"

  857.     cat > $TMPC

  858.     log_file $TMPC

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

  860. }

  861. 

  862. check_cxx(){

  863.     log check_cxx "$@"

  864.     cat > $TMPCPP

  865.     log_file $TMPCPP

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

  867. }

  868. 

  869. check_oc(){

  870.     log check_oc "$@"

  871.     cat > $TMPM

  872.     log_file $TMPM

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

  874. }

  875. 

  876. check_cpp(){

  877.     log check_cpp "$@"

  878.     cat > $TMPC

  879.     log_file $TMPC

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

  881. }

  882. 

  883. as_o(){

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

  885. }

  886. 

  887. check_as(){

  888.     log check_as "$@"

  889.     cat > $TMPS

  890.     log_file $TMPS

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

  892. }

  893. 

  894. check_inline_asm(){

  895.     log check_inline_asm "$@"

  896.     name="$1"

  897.     code="$2"

  898.     shift 2

  899.     disable $name

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

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

  902. EOF

  903. }

  904. 

  905. check_insn(){

  906.     log check_insn "$@"

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

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

  909. }

  910. 

  911. check_yasm(){

  912.     log check_yasm "$@"

  913.     echo "$1" > $TMPS

  914.     log_file $TMPS

  915.     shift 1

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

  917. }

  918. 

  919. ld_o(){

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

  921. }

  922. 

  923. check_ld(){

  924.     log check_ld "$@"

  925.     type=$1

  926.     shift 1

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

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

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

  930.     flags=$($ldflags_filter $flags)

  931.     libs=$($ldflags_filter $libs)

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

  933. }

  934. 

  935. print_include(){

  936.     hdr=$1

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

  938.         echo "#include $hdr"    ||

  939.         echo "#include <$hdr>"

  940. }

  941. 

  942. check_code(){

  943.     log check_code "$@"

  944.     check=$1

  945.     headers=$2

  946.     code=$3

  947.     shift 3

  948.     {

  949.         for hdr in $headers; do

  950.             print_include $hdr

  951.         done

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

  953.     } | check_$check "$@"

  954. }

  955. 

  956. check_cppflags(){

  957.     log check_cppflags "$@"

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

  959. int x;

  960. EOF

  961. }

  962. 

  963. test_cflags(){

  964.     log test_cflags "$@"

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

  966.     check_cc "$@" <<EOF

  967. int x;

  968. EOF

  969. }

  970. 

  971. check_cflags(){

  972.     log check_cflags "$@"

  973.     test_cflags "$@" && add_cflags "$@"

  974. }

  975. 

  976. check_cxxflags(){

  977.     log check_cxxflags "$@"

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

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

  980. int x;

  981. EOF

  982. }

  983. 

  984. test_ldflags(){

  985.     log test_ldflags "$@"

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

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

  988. EOF

  989. }

  990. 

  991. check_ldflags(){

  992.     log check_ldflags "$@"

  993.     test_ldflags "$@" && add_ldflags "$@"

  994. }

  995. 

  996. test_stripflags(){

  997.     log test_stripflags "$@"

  998.     # call check_cc to get a fresh TMPO

  999.     check_cc <<EOF

  1000. int main(void) { return 0; }

  1001. EOF

  1002.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1003. }

  1004. 

  1005. check_stripflags(){

  1006.     log check_stripflags "$@"

  1007.     test_stripflags "$@" && add_stripflags "$@"

  1008. }

  1009. 

  1010. check_header(){

  1011.     log check_header "$@"

  1012.     header=$1

  1013.     shift

  1014.     disable_safe $header

  1015.     check_cpp "$@" <<EOF && enable_safe $header

  1016. #include <$header>

  1017. int x;

  1018. EOF

  1019. }

  1020. 

  1021. check_header_oc(){

  1022.     log check_header_oc "$@"

  1023.     rm -f -- "$TMPO"

  1024.     header=$1

  1025.     shift

  1026.     disable_safe $header

  1027.     {

  1028.        echo "#include <$header>"

  1029.        echo "int main(void) { return 0; }"

  1030.     } | check_oc && check_stat "$TMPO" && enable_safe $headers

  1031. }

  1032. 

  1033. check_func(){

  1034.     log check_func "$@"

  1035.     func=$1

  1036.     shift

  1037.     disable $func

  1038.     check_ld "cc" "$@" <<EOF && enable $func

  1039. extern int $func();

  1040. int main(void){ $func(); }

  1041. EOF

  1042. }

  1043. 

  1044. check_mathfunc(){

  1045.     log check_mathfunc "$@"

  1046.     func=$1

  1047.     narg=$2

  1048.     shift 2

  1049.     test $narg = 2 && args="f, g" || args="f"

  1050.     disable $func

  1051.     check_ld "cc" "$@" <<EOF && enable $func

  1052. #include <math.h>

  1053. float foo(float f, float g) { return $func($args); }

  1054. int main(void){ return (int) foo; }

  1055. EOF

  1056. }

  1057. 

  1058. check_func_headers(){

  1059.     log check_func_headers "$@"

  1060.     headers=$1

  1061.     funcs=$2

  1062.     shift 2

  1063.     {

  1064.         for hdr in $headers; do

  1065.             print_include $hdr

  1066.         done

  1067.         for func in $funcs; do

  1068.             echo "long check_$func(void) { return (long) $func; }"

  1069.         done

  1070.         echo "int main(void) { return 0; }"

  1071.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1072. }

  1073. 

  1074. check_class_headers_cpp(){

  1075.     log check_class_headers_cpp "$@"

  1076.     headers=$1

  1077.     classes=$2

  1078.     shift 2

  1079.     {

  1080.         for hdr in $headers; do

  1081.             echo "#include <$hdr>"

  1082.         done

  1083.         echo "int main(void) { "

  1084.         i=1

  1085.         for class in $classes; do

  1086.             echo "$class obj$i;"

  1087.             i=$(expr $i + 1)

  1088.         done

  1089.         echo "return 0; }"

  1090.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1091. }

  1092. 

  1093. check_cpp_condition(){

  1094.     log check_cpp_condition "$@"

  1095.     header=$1

  1096.     condition=$2

  1097.     shift 2

  1098.     check_cpp "$@" <<EOF

  1099. #include <$header>

  1100. #if !($condition)

  1101. #error "unsatisfied condition: $condition"

  1102. #endif

  1103. EOF

  1104. }

  1105. 

  1106. check_lib(){

  1107.     log check_lib "$@"

  1108.     header="$1"

  1109.     func="$2"

  1110.     shift 2

  1111.     check_header $header && check_func $func "$@" && add_extralibs "$@"

  1112. }

  1113. 

  1114. check_lib2(){

  1115.     log check_lib2 "$@"

  1116.     headers="$1"

  1117.     funcs="$2"

  1118.     shift 2

  1119.     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"

  1120. }

  1121. 

  1122. check_lib_cpp(){

  1123.     log check_lib_cpp "$@"

  1124.     headers="$1"

  1125.     classes="$2"

  1126.     shift 2

  1127.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1128. }

  1129. 

  1130. check_pkg_config(){

  1131.     log check_pkg_config "$@"

  1132.     pkgandversion="$1"

  1133.     pkg="${1%% *}"

  1134.     headers="$2"

  1135.     funcs="$3"

  1136.     shift 3

  1137.     check_cmd $pkg_config --exists --print-errors $pkgandversion || return

  1138.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1139.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1140.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1141.         set_safe "${pkg}_cflags" $pkg_cflags   &&

  1142.         set_safe "${pkg}_libs"   $pkg_libs

  1143. }

  1144. 

  1145. check_exec(){

  1146.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1147. }

  1148. 

  1149. check_exec_crash(){

  1150.     code=$(cat)

  1151. 

  1152.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1153.     # are safe but may not be available everywhere.  Thus we use

  1154.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1155.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1156.     # is not defined by standard C so it is used conditionally.

  1157. 

  1158.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1159. #include <signal.h>

  1160. static void sighandler(int sig){

  1161.     raise(SIGTERM);

  1162. }

  1163. int foo(void){

  1164.     $code

  1165. }

  1166. int (*func_ptr)(void) = foo;

  1167. int main(void){

  1168.     signal(SIGILL, sighandler);

  1169.     signal(SIGFPE, sighandler);

  1170.     signal(SIGSEGV, sighandler);

  1171. #ifdef SIGBUS

  1172.     signal(SIGBUS, sighandler);

  1173. #endif

  1174.     return func_ptr();

  1175. }

  1176. EOF

  1177. }

  1178. 

  1179. check_type(){

  1180.     log check_type "$@"

  1181.     headers=$1

  1182.     type=$2

  1183.     shift 2

  1184.     disable_safe "$type"

  1185.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1186. }

  1187. 

  1188. check_struct(){

  1189.     log check_struct "$@"

  1190.     headers=$1

  1191.     struct=$2

  1192.     member=$3

  1193.     shift 3

  1194.     disable_safe "${struct}_${member}"

  1195.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

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

  1197. }

  1198. 

  1199. check_builtin(){

  1200.     log check_builtin "$@"

  1201.     name=$1

  1202.     headers=$2

  1203.     builtin=$3

  1204.     shift 3

  1205.     disable "$name"

  1206.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1207. }

  1208. 

  1209. check_compile_assert(){

  1210.     log check_compile_assert "$@"

  1211.     name=$1

  1212.     headers=$2

  1213.     condition=$3

  1214.     shift 3

  1215.     disable "$name"

  1216.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1217. }

  1218. 

  1219. require(){

  1220.     name="$1"

  1221.     header="$2"

  1222.     func="$3"

  1223.     shift 3

  1224.     check_lib $header $func "$@" || die "ERROR: $name not found"

  1225. }

  1226. 

  1227. require2(){

  1228.     name="$1"

  1229.     headers="$2"

  1230.     func="$3"

  1231.     shift 3

  1232.     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"

  1233. }

  1234. 

  1235. require_cpp(){

  1236.     name="$1"

  1237.     headers="$2"

  1238.     classes="$3"

  1239.     shift 3

  1240.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1241. }

  1242. 

  1243. use_pkg_config(){

  1244.     pkg="$1"

  1245.     check_pkg_config "$@" || return 1

  1246.     add_cflags    $(get_safe "${pkg}_cflags")

  1247.     add_extralibs $(get_safe "${pkg}_libs")

  1248. }

  1249. 

  1250. require_pkg_config(){

  1251.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1252. }

  1253. 

  1254. require_libfreetype(){

  1255.     log require_libfreetype "$@"

  1256.     pkg="freetype2"

  1257.     check_cmd $pkg_config --exists --print-errors $pkg \

  1258.       || die "ERROR: $pkg not found"

  1259.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1260.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1261.     {

  1262.         echo "#include <ft2build.h>"

  1263.         echo "#include FT_FREETYPE_H"

  1264.         echo "long check_func(void) { return (long) FT_Init_FreeType; }"

  1265.         echo "int main(void) { return 0; }"

  1266.     } | check_ld "cc" $pkg_cflags $pkg_libs \

  1267.       && set_safe "${pkg}_cflags" $pkg_cflags \

  1268.       && set_safe "${pkg}_libs"   $pkg_libs \

  1269.       || die "ERROR: $pkg not found"

  1270.     add_cflags    $(get_safe "${pkg}_cflags")

  1271.     add_extralibs $(get_safe "${pkg}_libs")

  1272. }

  1273. 

  1274. hostcc_e(){

  1275.     eval printf '%s\\n' $HOSTCC_E

  1276. }

  1277. 

  1278. hostcc_o(){

  1279.     eval printf '%s\\n' $HOSTCC_O

  1280. }

  1281. 

  1282. check_host_cc(){

  1283.     log check_host_cc "$@"

  1284.     cat > $TMPC

  1285.     log_file $TMPC

  1286.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1287. }

  1288. 

  1289. check_host_cpp(){

  1290.     log check_host_cpp "$@"

  1291.     cat > $TMPC

  1292.     log_file $TMPC

  1293.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1294. }

  1295. 

  1296. check_host_cppflags(){

  1297.     log check_host_cppflags "$@"

  1298.     check_host_cc "$@" <<EOF && append host_cppflags "$@"

  1299. int x;

  1300. EOF

  1301. }

  1302. 

  1303. check_host_cflags(){

  1304.     log check_host_cflags "$@"

  1305.     set -- $($host_cflags_filter "$@")

  1306.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1307. int x;

  1308. EOF

  1309. }

  1310. 

  1311. check_host_cpp_condition(){

  1312.     log check_host_cpp_condition "$@"

  1313.     header=$1

  1314.     condition=$2

  1315.     shift 2

  1316.     check_host_cpp "$@" <<EOF

  1317. #include <$header>

  1318. #if !($condition)

  1319. #error "unsatisfied condition: $condition"

  1320. #endif

  1321. EOF

  1322. }

  1323. 

  1324. cp_if_changed(){

  1325.     cmp -s "$1" "$2" && echo "$2 is unchanged" && return

  1326.     mkdir -p "$(dirname $2)"

  1327.     $cp_f "$1" "$2"

  1328. }

  1329. 

  1330. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1331. # system-dependent things.

  1332. 

  1333. COMPONENT_LIST="

  1334.     bsfs

  1335.     decoders

  1336.     demuxers

  1337.     encoders

  1338.     filters

  1339.     hwaccels

  1340.     indevs

  1341.     muxers

  1342.     outdevs

  1343.     parsers

  1344.     protocols

  1345. "

  1346. 

  1347. EXAMPLE_LIST="

  1348.     avio_reading_example

  1349.     avio_dir_cmd_example

  1350.     decoding_encoding_example

  1351.     demuxing_decoding_example

  1352.     extract_mvs_example

  1353.     filter_audio_example

  1354.     filtering_audio_example

  1355.     filtering_video_example

  1356.     metadata_example

  1357.     muxing_example

  1358.     qsvdec_example

  1359.     remuxing_example

  1360.     resampling_audio_example

  1361.     scaling_video_example

  1362.     transcode_aac_example

  1363.     transcoding_example

  1364. "

  1365. 

  1366. EXTERNAL_LIBRARY_LIST="

  1367.     avisynth

  1368.     bzlib

  1369.     crystalhd

  1370.     decklink

  1371.     frei0r

  1372.     gnutls

  1373.     iconv

  1374.     ladspa

  1375.     libaacplus

  1376.     libass

  1377.     libbluray

  1378.     libbs2b

  1379.     libcaca

  1380.     libcdio

  1381.     libcelt

  1382.     libdc1394

  1383.     libdcadec

  1384.     libfaac

  1385.     libfdk_aac

  1386.     libflite

  1387.     libfontconfig

  1388.     libfreetype

  1389.     libfribidi

  1390.     libgme

  1391.     libgsm

  1392.     libiec61883

  1393.     libilbc

  1394.     libkvazaar

  1395.     libmfx

  1396.     libmodplug

  1397.     libmp3lame

  1398.     libnut

  1399.     libopencore_amrnb

  1400.     libopencore_amrwb

  1401.     libopencv

  1402.     libopenh264

  1403.     libopenjpeg

  1404.     libopus

  1405.     libpulse

  1406.     libquvi

  1407.     librtmp

  1408.     libschroedinger

  1409.     libshine

  1410.     libsmbclient

  1411.     libsnappy

  1412.     libsoxr

  1413.     libspeex

  1414.     libssh

  1415.     libstagefright_h264

  1416.     libtesseract

  1417.     libtheora

  1418.     libtwolame

  1419.     libutvideo

  1420.     libv4l2

  1421.     libvidstab

  1422.     libvo_aacenc

  1423.     libvo_amrwbenc

  1424.     libvorbis

  1425.     libvpx

  1426.     libwavpack

  1427.     libwebp

  1428.     libx264

  1429.     libx265

  1430.     libxavs

  1431.     libxcb

  1432.     libxcb_shm

  1433.     libxcb_shape

  1434.     libxcb_xfixes

  1435.     libxvid

  1436.     libzmq

  1437.     libzvbi

  1438.     lzma

  1439.     mmal

  1440.     nvenc

  1441.     openal

  1442.     opencl

  1443.     opengl

  1444.     openssl

  1445.     sdl

  1446.     securetransport

  1447.     x11grab

  1448.     xlib

  1449.     zlib

  1450. "

  1451. 

  1452. DOCUMENT_LIST="

  1453.     doc

  1454.     htmlpages

  1455.     manpages

  1456.     podpages

  1457.     txtpages

  1458. "

  1459. 

  1460. FEATURE_LIST="

  1461.     ftrapv

  1462.     gray

  1463.     hardcoded_tables

  1464.     runtime_cpudetect

  1465.     safe_bitstream_reader

  1466.     shared

  1467.     small

  1468.     static

  1469.     swscale_alpha

  1470. "

  1471. 

  1472. HWACCEL_LIST="

  1473.     d3d11va

  1474.     dxva2

  1475.     vaapi

  1476.     vda

  1477.     vdpau

  1478.     videotoolbox

  1479.     xvmc

  1480. "

  1481. 

  1482. LIBRARY_LIST="

  1483.     avcodec

  1484.     avdevice

  1485.     avfilter

  1486.     avformat

  1487.     avresample

  1488.     avutil

  1489.     postproc

  1490.     swresample

  1491.     swscale

  1492. "

  1493. 

  1494. LICENSE_LIST="

  1495.     gpl

  1496.     nonfree

  1497.     version3

  1498. "

  1499. 

  1500. PROGRAM_LIST="

  1501.     ffplay

  1502.     ffprobe

  1503.     ffserver

  1504.     ffmpeg

  1505. "

  1506. 

  1507. SUBSYSTEM_LIST="

  1508.     dct

  1509.     dwt

  1510.     error_resilience

  1511.     faan

  1512.     fast_unaligned

  1513.     fft

  1514.     lsp

  1515.     lzo

  1516.     mdct

  1517.     pixelutils

  1518.     network

  1519.     rdft

  1520. "

  1521. 

  1522. CONFIG_LIST="

  1523.     $COMPONENT_LIST

  1524.     $DOCUMENT_LIST

  1525.     $EXAMPLE_LIST

  1526.     $EXTERNAL_LIBRARY_LIST

  1527.     $FEATURE_LIST

  1528.     $HWACCEL_LIST

  1529.     $LICENSE_LIST

  1530.     $LIBRARY_LIST

  1531.     $PROGRAM_LIST

  1532.     $SUBSYSTEM_LIST

  1533.     fontconfig

  1534.     incompatible_libav_abi

  1535.     memalign_hack

  1536.     memory_poisoning

  1537.     neon_clobber_test

  1538.     pic

  1539.     pod2man

  1540.     raise_major

  1541.     thumb

  1542.     valgrind_backtrace

  1543.     xmm_clobber_test

  1544. "

  1545. 

  1546. THREADS_LIST="

  1547.     pthreads

  1548.     os2threads

  1549.     w32threads

  1550. "

  1551. 

  1552. ATOMICS_LIST="

  1553.     atomics_gcc

  1554.     atomics_suncc

  1555.     atomics_win32

  1556. "

  1557. 

  1558. ARCH_LIST="

  1559.     aarch64

  1560.     alpha

  1561.     arm

  1562.     avr32

  1563.     avr32_ap

  1564.     avr32_uc

  1565.     bfin

  1566.     ia64

  1567.     m68k

  1568.     mips

  1569.     mips64

  1570.     parisc

  1571.     ppc

  1572.     ppc64

  1573.     s390

  1574.     sh4

  1575.     sparc

  1576.     sparc64

  1577.     tilegx

  1578.     tilepro

  1579.     tomi

  1580.     x86

  1581.     x86_32

  1582.     x86_64

  1583. "

  1584. 

  1585. ARCH_EXT_LIST_ARM="

  1586.     armv5te

  1587.     armv6

  1588.     armv6t2

  1589.     armv8

  1590.     neon

  1591.     vfp

  1592.     vfpv3

  1593.     setend

  1594. "

  1595. 

  1596. ARCH_EXT_LIST_MIPS="

  1597.     mipsfpu

  1598.     mips32r2

  1599.     mips32r5

  1600.     mips64r6

  1601.     mipsdspr1

  1602.     mipsdspr2

  1603.     msa

  1604. "

  1605. 

  1606. ARCH_EXT_LIST_LOONGSON="

  1607.     loongson2

  1608.     loongson3

  1609.     mmi

  1610. "

  1611. 

  1612. ARCH_EXT_LIST_X86_SIMD="

  1613.     amd3dnow

  1614.     amd3dnowext

  1615.     avx

  1616.     avx2

  1617.     fma3

  1618.     fma4

  1619.     mmx

  1620.     mmxext

  1621.     sse

  1622.     sse2

  1623.     sse3

  1624.     sse4

  1625.     sse42

  1626.     ssse3

  1627.     xop

  1628. "

  1629. 

  1630. ARCH_EXT_LIST_PPC="

  1631.     altivec

  1632.     dcbzl

  1633.     ldbrx

  1634.     power8

  1635.     ppc4xx

  1636.     vsx

  1637. "

  1638. 

  1639. ARCH_EXT_LIST_X86="

  1640.     $ARCH_EXT_LIST_X86_SIMD

  1641.     cpunop

  1642.     i686

  1643. "

  1644. 

  1645. ARCH_EXT_LIST="

  1646.     $ARCH_EXT_LIST_ARM

  1647.     $ARCH_EXT_LIST_PPC

  1648.     $ARCH_EXT_LIST_X86

  1649.     $ARCH_EXT_LIST_MIPS

  1650.     $ARCH_EXT_LIST_LOONGSON

  1651. "

  1652. 

  1653. ARCH_FEATURES="

  1654.     aligned_stack

  1655.     fast_64bit

  1656.     fast_clz

  1657.     fast_cmov

  1658.     local_aligned_8

  1659.     local_aligned_16

  1660.     local_aligned_32

  1661.     simd_align_16

  1662. "

  1663. 

  1664. BUILTIN_LIST="

  1665.     atomic_cas_ptr

  1666.     atomic_compare_exchange

  1667.     machine_rw_barrier

  1668.     MemoryBarrier

  1669.     mm_empty

  1670.     rdtsc

  1671.     sarestart

  1672.     sync_val_compare_and_swap

  1673. "

  1674. HAVE_LIST_CMDLINE="

  1675.     inline_asm

  1676.     symver

  1677.     yasm

  1678. "

  1679. 

  1680. HAVE_LIST_PUB="

  1681.     bigendian

  1682.     fast_unaligned

  1683.     incompatible_libav_abi

  1684. "

  1685. 

  1686. HEADERS_LIST="

  1687.     alsa_asoundlib_h

  1688.     altivec_h

  1689.     arpa_inet_h

  1690.     asm_types_h

  1691.     cdio_paranoia_h

  1692.     cdio_paranoia_paranoia_h

  1693.     dev_bktr_ioctl_bt848_h

  1694.     dev_bktr_ioctl_meteor_h

  1695.     dev_ic_bt8xx_h

  1696.     dev_video_bktr_ioctl_bt848_h

  1697.     dev_video_meteor_ioctl_meteor_h

  1698.     direct_h

  1699.     dirent_h

  1700.     dlfcn_h

  1701.     d3d11_h

  1702.     dxva_h

  1703.     ES2_gl_h

  1704.     gsm_h

  1705.     io_h

  1706.     mach_mach_time_h

  1707.     machine_ioctl_bt848_h

  1708.     machine_ioctl_meteor_h

  1709.     malloc_h

  1710.     openjpeg_1_5_openjpeg_h

  1711.     OpenGL_gl3_h

  1712.     poll_h

  1713.     sndio_h

  1714.     soundcard_h

  1715.     sys_mman_h

  1716.     sys_param_h

  1717.     sys_resource_h

  1718.     sys_select_h

  1719.     sys_soundcard_h

  1720.     sys_time_h

  1721.     sys_un_h

  1722.     sys_videoio_h

  1723.     termios_h

  1724.     udplite_h

  1725.     unistd_h

  1726.     valgrind_valgrind_h

  1727.     windows_h

  1728.     winsock2_h

  1729. "

  1730. 

  1731. INTRINSICS_LIST="

  1732.     intrinsics_neon

  1733. "

  1734. 

  1735. MATH_FUNCS="

  1736.     atanf

  1737.     atan2f

  1738.     cbrt

  1739.     cbrtf

  1740.     copysign

  1741.     cosf

  1742.     erf

  1743.     exp2

  1744.     exp2f

  1745.     expf

  1746.     isinf

  1747.     isnan

  1748.     ldexpf

  1749.     llrint

  1750.     llrintf

  1751.     log2

  1752.     log2f

  1753.     log10f

  1754.     lrint

  1755.     lrintf

  1756.     powf

  1757.     rint

  1758.     round

  1759.     roundf

  1760.     sinf

  1761.     trunc

  1762.     truncf

  1763. "

  1764. 

  1765. SYSTEM_FUNCS="

  1766.     access

  1767.     aligned_malloc

  1768.     clock_gettime

  1769.     closesocket

  1770.     CommandLineToArgvW

  1771.     CoTaskMemFree

  1772.     CryptGenRandom

  1773.     dlopen

  1774.     fcntl

  1775.     flt_lim

  1776.     fork

  1777.     getaddrinfo

  1778.     gethrtime

  1779.     getopt

  1780.     GetProcessAffinityMask

  1781.     GetProcessMemoryInfo

  1782.     GetProcessTimes

  1783.     getrusage

  1784.     getservbyport

  1785.     GetSystemTimeAsFileTime

  1786.     gettimeofday

  1787.     glob

  1788.     glXGetProcAddress

  1789.     gmtime_r

  1790.     inet_aton

  1791.     isatty

  1792.     jack_port_get_latency_range

  1793.     kbhit

  1794.     localtime_r

  1795.     lstat

  1796.     lzo1x_999_compress

  1797.     mach_absolute_time

  1798.     MapViewOfFile

  1799.     memalign

  1800.     mkstemp

  1801.     mmap

  1802.     mprotect

  1803.     nanosleep

  1804.     PeekNamedPipe

  1805.     posix_memalign

  1806.     pthread_cancel

  1807.     sched_getaffinity

  1808.     SetConsoleTextAttribute

  1809.     SetConsoleCtrlHandler

  1810.     setmode

  1811.     setrlimit

  1812.     Sleep

  1813.     strerror_r

  1814.     sysconf

  1815.     sysctl

  1816.     usleep

  1817.     VirtualAlloc

  1818.     wglGetProcAddress

  1819. "

  1820. 

  1821. TOOLCHAIN_FEATURES="

  1822.     as_dn_directive

  1823.     as_func

  1824.     as_object_arch

  1825.     asm_mod_q

  1826.     attribute_may_alias

  1827.     attribute_packed

  1828.     ebp_available

  1829.     ebx_available

  1830.     gnu_as

  1831.     gnu_windres

  1832.     ibm_asm

  1833.     inline_asm_labels

  1834.     inline_asm_nonlocal_labels

  1835.     inline_asm_direct_symbol_refs

  1836.     pragma_deprecated

  1837.     rsync_contimeout

  1838.     symver_asm_label

  1839.     symver_gnu_asm

  1840.     vfp_args

  1841.     xform_asm

  1842.     xmm_clobbers

  1843. "

  1844. 

  1845. TYPES_LIST="

  1846.     CONDITION_VARIABLE_Ptr

  1847.     socklen_t

  1848.     struct_addrinfo

  1849.     struct_dcadec_exss_info_matrix_encoding

  1850.     struct_group_source_req

  1851.     struct_ip_mreq_source

  1852.     struct_ipv6_mreq

  1853.     struct_pollfd

  1854.     struct_rusage_ru_maxrss

  1855.     struct_sctp_event_subscribe

  1856.     struct_sockaddr_in6

  1857.     struct_sockaddr_sa_len

  1858.     struct_sockaddr_storage

  1859.     struct_stat_st_mtim_tv_nsec

  1860.     struct_v4l2_frmivalenum_discrete

  1861. "

  1862. 

  1863. HAVE_LIST="

  1864.     $ARCH_EXT_LIST

  1865.     $(add_suffix _external $ARCH_EXT_LIST)

  1866.     $(add_suffix _inline   $ARCH_EXT_LIST)

  1867.     $ARCH_FEATURES

  1868.     $ATOMICS_LIST

  1869.     $BUILTIN_LIST

  1870.     $HAVE_LIST_CMDLINE

  1871.     $HAVE_LIST_PUB

  1872.     $HEADERS_LIST

  1873.     $INTRINSICS_LIST

  1874.     $MATH_FUNCS

  1875.     $SYSTEM_FUNCS

  1876.     $THREADS_LIST

  1877.     $TOOLCHAIN_FEATURES

  1878.     $TYPES_LIST

  1879.     atomics_native

  1880.     dos_paths

  1881.     dxva2api_cobj

  1882.     dxva2_lib

  1883.     libc_msvcrt

  1884.     libdc1394_1

  1885.     libdc1394_2

  1886.     makeinfo

  1887.     makeinfo_html

  1888.     perl

  1889.     pod2man

  1890.     sdl

  1891.     section_data_rel_ro

  1892.     texi2html

  1893.     threads

  1894.     vaapi_x11

  1895.     vdpau_x11

  1896.     xlib

  1897. "

  1898. 

  1899. # options emitted with CONFIG_ prefix but not available on the command line

  1900. CONFIG_EXTRA="

  1901.     aandcttables

  1902.     ac3dsp

  1903.     audio_frame_queue

  1904.     audiodsp

  1905.     blockdsp

  1906.     bswapdsp

  1907.     cabac

  1908.     dvprofile

  1909.     exif

  1910.     faandct

  1911.     faanidct

  1912.     fdctdsp

  1913.     flacdsp

  1914.     fmtconvert

  1915.     frame_thread_encoder

  1916.     g722dsp

  1917.     gcrypt

  1918.     gmp

  1919.     golomb

  1920.     gplv3

  1921.     h263dsp

  1922.     h264chroma

  1923.     h264dsp

  1924.     h264pred

  1925.     h264qpel

  1926.     hpeldsp

  1927.     huffman

  1928.     huffyuvdsp

  1929.     huffyuvencdsp

  1930.     idctdsp

  1931.     iirfilter

  1932.     imdct15

  1933.     intrax8

  1934.     ividsp

  1935.     jpegtables

  1936.     libx262

  1937.     lgplv3

  1938.     llauddsp

  1939.     llviddsp

  1940.     lpc

  1941.     lzf

  1942.     me_cmp

  1943.     mpeg_er

  1944.     mpegaudio

  1945.     mpegaudiodsp

  1946.     mpegvideo

  1947.     mpegvideoenc

  1948.     mss34dsp

  1949.     pixblockdsp

  1950.     qpeldsp

  1951.     qsv

  1952.     qsvdec

  1953.     qsvenc

  1954.     rangecoder

  1955.     riffdec

  1956.     riffenc

  1957.     rtpdec

  1958.     rtpenc_chain

  1959.     rv34dsp

  1960.     sinewin

  1961.     snappy

  1962.     startcode

  1963.     texturedsp

  1964.     texturedspenc

  1965.     tpeldsp

  1966.     videodsp

  1967.     vp3dsp

  1968.     vp56dsp

  1969.     vp8dsp

  1970.     wma_freqs

  1971.     wmv2dsp

  1972. "

  1973. 

  1974. CMDLINE_SELECT="

  1975.     $ARCH_EXT_LIST

  1976.     $CONFIG_LIST

  1977.     $HAVE_LIST_CMDLINE

  1978.     $THREADS_LIST

  1979.     asm

  1980.     cross_compile

  1981.     debug

  1982.     extra_warnings

  1983.     logging

  1984.     lto

  1985.     optimizations

  1986.     rpath

  1987.     stripping

  1988. "

  1989. 

  1990. PATHS_LIST="

  1991.     bindir

  1992.     datadir

  1993.     docdir

  1994.     incdir

  1995.     libdir

  1996.     mandir

  1997.     pkgconfigdir

  1998.     prefix

  1999.     shlibdir

  2000. "

  2001. 

  2002. CMDLINE_SET="

  2003.     $PATHS_LIST

  2004.     ar

  2005.     arch

  2006.     as

  2007.     assert_level

  2008.     build_suffix

  2009.     cc

  2010.     cpu

  2011.     cross_prefix

  2012.     cxx

  2013.     dep_cc

  2014.     doxygen

  2015.     env

  2016.     extra_version

  2017.     gas

  2018.     host_cc

  2019.     host_cflags

  2020.     host_ld

  2021.     host_ldflags

  2022.     host_libs

  2023.     host_os

  2024.     install

  2025.     ld

  2026.     logfile

  2027.     malloc_prefix

  2028.     nm

  2029.     optflags

  2030.     pkg_config

  2031.     pkg_config_flags

  2032.     progs_suffix

  2033.     random_seed

  2034.     ranlib

  2035.     samples

  2036.     strip

  2037.     sws_max_filter_size

  2038.     sysinclude

  2039.     sysroot

  2040.     target_exec

  2041.     target_os

  2042.     target_path

  2043.     target_samples

  2044.     tempprefix

  2045.     toolchain

  2046.     valgrind

  2047.     yasmexe

  2048. "

  2049. 

  2050. CMDLINE_APPEND="

  2051.     extra_cflags

  2052.     extra_cxxflags

  2053.     host_cppflags

  2054. "

  2055. 

  2056. # code dependency declarations

  2057. 

  2058. # architecture extensions

  2059. 

  2060. armv5te_deps="arm"

  2061. armv6_deps="arm"

  2062. armv6t2_deps="arm"

  2063. armv8_deps="aarch64"

  2064. neon_deps_any="aarch64 arm"

  2065. intrinsics_neon_deps="neon"

  2066. vfp_deps_any="aarch64 arm"

  2067. vfpv3_deps="vfp"

  2068. setend_deps="arm"

  2069. 

  2070. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2071. 

  2072. mipsfpu_deps="mips"

  2073. mipsdspr1_deps="mips"

  2074. mipsdspr2_deps="mips"

  2075. mips32r2_deps="mips"

  2076. mips32r5_deps="mips"

  2077. mips64r6_deps="mips"

  2078. msa_deps="mips"

  2079. mmi_deps="mips"

  2080. 

  2081. altivec_deps="ppc"

  2082. dcbzl_deps="ppc"

  2083. ldbrx_deps="ppc"

  2084. ppc4xx_deps="ppc"

  2085. vsx_deps="altivec"

  2086. power8_deps="vsx"

  2087. 

  2088. cpunop_deps="i686"

  2089. x86_64_select="i686"

  2090. x86_64_suggest="fast_cmov"

  2091. 

  2092. amd3dnow_deps="mmx"

  2093. amd3dnowext_deps="amd3dnow"

  2094. i686_deps="x86"

  2095. mmx_deps="x86"

  2096. mmxext_deps="mmx"

  2097. sse_deps="mmxext"

  2098. sse2_deps="sse"

  2099. sse3_deps="sse2"

  2100. ssse3_deps="sse3"

  2101. sse4_deps="ssse3"

  2102. sse42_deps="sse4"

  2103. avx_deps="sse42"

  2104. xop_deps="avx"

  2105. fma3_deps="avx"

  2106. fma4_deps="avx"

  2107. avx2_deps="avx"

  2108. 

  2109. mmx_external_deps="yasm"

  2110. mmx_inline_deps="inline_asm"

  2111. mmx_suggest="mmx_external mmx_inline"

  2112. 

  2113. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2114.     eval dep=\$${ext}_deps

  2115.     eval ${ext}_external_deps='"${dep}_external"'

  2116.     eval ${ext}_inline_deps='"${dep}_inline"'

  2117.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2118. done

  2119. 

  2120. aligned_stack_if_any="aarch64 ppc x86"

  2121. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2122. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2123. fast_unaligned_if_any="aarch64 ppc x86"

  2124. simd_align_16_if_any="altivec neon sse"

  2125. 

  2126. # system capabilities

  2127. symver_if_any="symver_asm_label symver_gnu_asm"

  2128. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2129. 

  2130. # threading support

  2131. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2132. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2133. atomics_win32_if="MemoryBarrier"

  2134. atomics_native_if_any="$ATOMICS_LIST"

  2135. w32threads_deps="atomics_native"

  2136. threads_if_any="$THREADS_LIST"

  2137. 

  2138. # subsystems

  2139. dct_select="rdft"

  2140. error_resilience_select="me_cmp"

  2141. faandct_deps="faan fdctdsp"

  2142. faanidct_deps="faan idctdsp"

  2143. frame_thread_encoder_deps="encoders threads"

  2144. intrax8_select="error_resilience"

  2145. mdct_select="fft"

  2146. rdft_select="fft"

  2147. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2148. mpeg_er_select="error_resilience"

  2149. mpegaudio_select="mpegaudiodsp"

  2150. mpegaudiodsp_select="dct"

  2151. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2152. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2153. qsvdec_select="qsv"

  2154. qsvenc_select="qsv"

  2155. 

  2156. # decoders / encoders

  2157. aac_decoder_select="imdct15 mdct sinewin"

  2158. aac_fixed_decoder_select="mdct sinewin"

  2159. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2160. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2161. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2162. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2163. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2164. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2165. adpcm_g722_decoder_select="g722dsp"

  2166. adpcm_g722_encoder_select="g722dsp"

  2167. aic_decoder_select="golomb idctdsp"

  2168. alac_encoder_select="lpc"

  2169. als_decoder_select="bswapdsp"

  2170. amrnb_decoder_select="lsp"

  2171. amrwb_decoder_select="lsp"

  2172. amv_decoder_select="sp5x_decoder exif"

  2173. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2174. ape_decoder_select="bswapdsp llauddsp"

  2175. apng_decoder_select="zlib"

  2176. apng_encoder_select="huffyuvencdsp zlib"

  2177. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2178. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2179. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2180. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2181. atrac1_decoder_select="mdct sinewin"

  2182. atrac3_decoder_select="mdct"

  2183. atrac3p_decoder_select="mdct sinewin"

  2184. avrn_decoder_select="exif jpegtables"

  2185. bink_decoder_select="blockdsp hpeldsp"

  2186. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2187. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2188. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2189. cllc_decoder_select="bswapdsp"

  2190. comfortnoise_encoder_select="lpc"

  2191. cook_decoder_select="audiodsp mdct sinewin"

  2192. cscd_decoder_select="lzo"

  2193. cscd_decoder_suggest="zlib"

  2194. dca_decoder_select="fmtconvert mdct"

  2195. dds_decoder_select="texturedsp"

  2196. dirac_decoder_select="dwt golomb videodsp mpegvideoenc"

  2197. dnxhd_decoder_select="blockdsp idctdsp"

  2198. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2199. dvvideo_decoder_select="dvprofile idctdsp"

  2200. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2201. dxa_decoder_select="zlib"

  2202. dxv_decoder_select="lzf texturedsp"

  2203. eac3_decoder_select="ac3_decoder"

  2204. eac3_encoder_select="ac3_encoder"

  2205. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2206. eatgq_decoder_select="aandcttables"

  2207. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"

  2208. exr_decoder_select="zlib"

  2209. ffv1_decoder_select="golomb rangecoder"

  2210. ffv1_encoder_select="rangecoder"

  2211. ffvhuff_decoder_select="huffyuv_decoder"

  2212. ffvhuff_encoder_select="huffyuv_encoder"

  2213. fic_decoder_select="golomb"

  2214. flac_decoder_select="flacdsp golomb"

  2215. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2216. flashsv_decoder_select="zlib"

  2217. flashsv_encoder_select="zlib"

  2218. flashsv2_encoder_select="zlib"

  2219. flashsv2_decoder_select="zlib"

  2220. flv_decoder_select="h263_decoder"

  2221. flv_encoder_select="h263_encoder"

  2222. fourxm_decoder_select="blockdsp bswapdsp"

  2223. fraps_decoder_select="bswapdsp huffman"

  2224. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2225. g729_decoder_select="audiodsp"

  2226. h261_decoder_select="mpegvideo"

  2227. h261_encoder_select="aandcttables mpegvideoenc"

  2228. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2229. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2230. h263i_decoder_select="h263_decoder"

  2231. h263p_decoder_select="h263_decoder"

  2232. h263p_encoder_select="h263_encoder"

  2233. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"

  2234. h264_decoder_suggest="error_resilience"

  2235. h264_qsv_decoder_deps="libmfx"

  2236. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2237. h264_qsv_encoder_deps="libmfx"

  2238. h264_qsv_encoder_select="qsvenc"

  2239. hap_decoder_select="snappy texturedsp"

  2240. hap_encoder_deps="libsnappy"

  2241. hap_encoder_select="texturedspenc"

  2242. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2243. hevc_qsv_encoder_deps="libmfx"

  2244. hevc_qsv_decoder_deps="libmfx"

  2245. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2246. hevc_qsv_encoder_select="qsvenc"

  2247. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2248. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2249. iac_decoder_select="imc_decoder"

  2250. imc_decoder_select="bswapdsp fft mdct sinewin"

  2251. indeo3_decoder_select="hpeldsp"

  2252. indeo4_decoder_select="ividsp"

  2253. indeo5_decoder_select="ividsp"

  2254. interplay_video_decoder_select="hpeldsp"

  2255. jpegls_decoder_select="golomb mjpeg_decoder"

  2256. jpegls_encoder_select="golomb"

  2257. jv_decoder_select="blockdsp"

  2258. lagarith_decoder_select="huffyuvdsp"

  2259. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2260. loco_decoder_select="golomb"

  2261. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2262. metasound_decoder_select="lsp mdct sinewin"

  2263. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2264. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2265. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2266. mjpegb_decoder_select="mjpeg_decoder"

  2267. mlp_decoder_select="mlp_parser"

  2268. motionpixels_decoder_select="bswapdsp"

  2269. mp1_decoder_select="mpegaudio"

  2270. mp1float_decoder_select="mpegaudio"

  2271. mp2_decoder_select="mpegaudio"

  2272. mp2float_decoder_select="mpegaudio"

  2273. mp3_decoder_select="mpegaudio"

  2274. mp3adu_decoder_select="mpegaudio"

  2275. mp3adufloat_decoder_select="mpegaudio"

  2276. mp3float_decoder_select="mpegaudio"

  2277. mp3on4_decoder_select="mpegaudio"

  2278. mp3on4float_decoder_select="mpegaudio"

  2279. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2280. mpc8_decoder_select="mpegaudiodsp"

  2281. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2282. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2283. mpegvideo_decoder_select="mpegvideo"

  2284. mpeg1video_decoder_select="mpegvideo"

  2285. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2286. mpeg2video_decoder_select="mpegvideo"

  2287. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2288. mpeg2_qsv_decoder_deps="libmfx"

  2289. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2290. mpeg2_qsv_encoder_deps="libmfx"

  2291. mpeg2_qsv_encoder_select="qsvenc"

  2292. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2293. mpeg4_encoder_select="h263_encoder"

  2294. msa1_decoder_select="mss34dsp"

  2295. msmpeg4v1_decoder_select="h263_decoder"

  2296. msmpeg4v2_decoder_select="h263_decoder"

  2297. msmpeg4v2_encoder_select="h263_encoder"

  2298. msmpeg4v3_decoder_select="h263_decoder"

  2299. msmpeg4v3_encoder_select="h263_encoder"

  2300. mss2_decoder_select="vc1_decoder"

  2301. mts2_decoder_select="mss34dsp"

  2302. mxpeg_decoder_select="mjpeg_decoder"

  2303. nellymoser_decoder_select="mdct sinewin"

  2304. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2305. nuv_decoder_select="idctdsp lzo"

  2306. on2avc_decoder_select="mdct"

  2307. opus_decoder_deps="swresample"

  2308. opus_decoder_select="imdct15"

  2309. png_decoder_select="zlib"

  2310. png_encoder_select="huffyuvencdsp zlib"

  2311. prores_decoder_select="blockdsp idctdsp"

  2312. prores_encoder_select="fdctdsp"

  2313. qcelp_decoder_select="lsp"

  2314. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2315. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2316. ra_144_decoder_select="audiodsp"

  2317. ralf_decoder_select="golomb"

  2318. rawvideo_decoder_select="bswapdsp"

  2319. rtjpeg_decoder_select="me_cmp"

  2320. rv10_decoder_select="h263_decoder"

  2321. rv10_encoder_select="h263_encoder"

  2322. rv20_decoder_select="h263_decoder"

  2323. rv20_encoder_select="h263_encoder"

  2324. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2325. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2326. shorten_decoder_select="golomb"

  2327. sipr_decoder_select="lsp"

  2328. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2329. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2330. sonic_decoder_select="golomb rangecoder"

  2331. sonic_encoder_select="golomb rangecoder"

  2332. sonic_ls_encoder_select="golomb rangecoder"

  2333. sp5x_decoder_select="mjpeg_decoder"

  2334. svq1_decoder_select="hpeldsp"

  2335. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2336. svq3_decoder_select="h264_decoder hpeldsp tpeldsp"

  2337. svq3_decoder_suggest="zlib"

  2338. tak_decoder_select="audiodsp"

  2339. tdsc_decoder_select="zlib mjpeg_decoder"

  2340. theora_decoder_select="vp3_decoder"

  2341. thp_decoder_select="mjpeg_decoder"

  2342. tiff_decoder_suggest="zlib lzma"

  2343. tiff_encoder_suggest="zlib"

  2344. truehd_decoder_select="mlp_parser"

  2345. truemotion2_decoder_select="bswapdsp"

  2346. truespeech_decoder_select="bswapdsp"

  2347. tscc_decoder_select="zlib"

  2348. twinvq_decoder_select="mdct lsp sinewin"

  2349. txd_decoder_select="texturedsp"

  2350. utvideo_decoder_select="bswapdsp"

  2351. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2352. vble_decoder_select="huffyuvdsp"

  2353. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"

  2354. vc1image_decoder_select="vc1_decoder"

  2355. vc1_qsv_decoder_deps="libmfx"

  2356. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2357. vorbis_decoder_select="mdct"

  2358. vorbis_encoder_select="mdct"

  2359. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2360. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2361. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2362. vp6a_decoder_select="vp6_decoder"

  2363. vp6f_decoder_select="vp6_decoder"

  2364. vp7_decoder_select="h264pred videodsp vp8dsp"

  2365. vp8_decoder_select="h264pred videodsp vp8dsp"

  2366. vp9_decoder_select="videodsp vp9_parser"

  2367. webp_decoder_select="vp8_decoder"

  2368. wmalossless_decoder_select="llauddsp"

  2369. wmapro_decoder_select="mdct sinewin wma_freqs"

  2370. wmav1_decoder_select="mdct sinewin wma_freqs"

  2371. wmav1_encoder_select="mdct sinewin wma_freqs"

  2372. wmav2_decoder_select="mdct sinewin wma_freqs"

  2373. wmav2_encoder_select="mdct sinewin wma_freqs"

  2374. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2375. wmv1_decoder_select="h263_decoder"

  2376. wmv1_encoder_select="h263_encoder"

  2377. wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2378. wmv2_encoder_select="h263_encoder wmv2dsp"

  2379. wmv3_decoder_select="vc1_decoder"

  2380. wmv3image_decoder_select="wmv3_decoder"

  2381. zerocodec_decoder_select="zlib"

  2382. zlib_decoder_select="zlib"

  2383. zlib_encoder_select="zlib"

  2384. zmbv_decoder_select="zlib"

  2385. zmbv_encoder_select="zlib"

  2386. 

  2387. # hardware accelerators

  2388. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2389. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2390. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2391. vaapi_deps="va_va_h"

  2392. vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads CoreServices_CoreServices_h"

  2393. vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore -framework CoreServices"

  2394. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2395. videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads CoreServices_CoreServices_h"

  2396. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreServices"

  2397. xvmc_deps="X11_extensions_XvMClib_h"

  2398. 

  2399. h263_vaapi_hwaccel_deps="vaapi"

  2400. h263_vaapi_hwaccel_select="h263_decoder"

  2401. h263_vdpau_hwaccel_deps="vdpau"

  2402. h263_vdpau_hwaccel_select="h263_decoder"

  2403. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2404. h263_videotoolbox_hwaccel_select="h263_decoder"

  2405. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2406. h264_d3d11va_hwaccel_deps="d3d11va"

  2407. h264_d3d11va_hwaccel_select="h264_decoder"

  2408. h264_dxva2_hwaccel_deps="dxva2"

  2409. h264_dxva2_hwaccel_select="h264_decoder"

  2410. h264_mmal_decoder_deps="mmal"

  2411. h264_mmal_hwaccel_deps="mmal"

  2412. h264_mmal_decoder_select="h264_decoder"

  2413. h264_mmal_encoder_deps="mmal"

  2414. h264_qsv_hwaccel_deps="libmfx"

  2415. h264_vaapi_hwaccel_deps="vaapi"

  2416. h264_vaapi_hwaccel_select="h264_decoder"

  2417. h264_vda_decoder_deps="vda"

  2418. h264_vda_decoder_select="h264_decoder"

  2419. h264_vda_hwaccel_deps="vda"

  2420. h264_vda_hwaccel_select="h264_decoder"

  2421. h264_vda_old_hwaccel_deps="vda"

  2422. h264_vda_old_hwaccel_select="h264_decoder"

  2423. h264_vdpau_decoder_deps="vdpau"

  2424. h264_vdpau_decoder_select="h264_decoder"

  2425. h264_vdpau_hwaccel_deps="vdpau"

  2426. h264_vdpau_hwaccel_select="h264_decoder"

  2427. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2428. h264_videotoolbox_hwaccel_select="h264_decoder"

  2429. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2430. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2431. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2432. hevc_dxva2_hwaccel_select="hevc_decoder"

  2433. hevc_qsv_hwaccel_deps="libmfx"

  2434. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2435. hevc_vaapi_hwaccel_select="hevc_decoder"

  2436. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2437. hevc_vdpau_hwaccel_select="hevc_decoder"

  2438. mpeg_vdpau_decoder_deps="vdpau"

  2439. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2440. mpeg_xvmc_hwaccel_deps="xvmc"

  2441. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2442. mpeg1_vdpau_decoder_deps="vdpau"

  2443. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2444. mpeg1_vdpau_hwaccel_deps="vdpau"

  2445. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2446. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2447. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2448. mpeg1_xvmc_hwaccel_deps="xvmc"

  2449. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2450. mpeg2_crystalhd_decoder_select="crystalhd"

  2451. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2452. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2453. mpeg2_dxva2_hwaccel_deps="dxva2"

  2454. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2455. mpeg2_qsv_hwaccel_deps="libmfx"

  2456. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2457. mpeg2_vaapi_hwaccel_deps="vaapi"

  2458. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2459. mpeg2_vdpau_hwaccel_deps="vdpau"

  2460. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2461. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2462. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2463. mpeg2_xvmc_hwaccel_deps="xvmc"

  2464. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2465. mpeg4_crystalhd_decoder_select="crystalhd"

  2466. mpeg4_vaapi_hwaccel_deps="vaapi"

  2467. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2468. mpeg4_vdpau_decoder_deps="vdpau"

  2469. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2470. mpeg4_vdpau_hwaccel_deps="vdpau"

  2471. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2472. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2473. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2474. msmpeg4_crystalhd_decoder_select="crystalhd"

  2475. vc1_crystalhd_decoder_select="crystalhd"

  2476. vc1_d3d11va_hwaccel_deps="d3d11va"

  2477. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2478. vc1_dxva2_hwaccel_deps="dxva2"

  2479. vc1_dxva2_hwaccel_select="vc1_decoder"

  2480. vc1_vaapi_hwaccel_deps="vaapi"

  2481. vc1_vaapi_hwaccel_select="vc1_decoder"

  2482. vc1_vdpau_decoder_deps="vdpau"

  2483. vc1_vdpau_decoder_select="vc1_decoder"

  2484. vc1_vdpau_hwaccel_deps="vdpau"

  2485. vc1_vdpau_hwaccel_select="vc1_decoder"

  2486. vc1_qsv_hwaccel_deps="libmfx"

  2487. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2488. wmv3_crystalhd_decoder_select="crystalhd"

  2489. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2490. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2491. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2492. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2493. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2494. 

  2495. # parsers

  2496. h264_parser_select="h264_decoder"

  2497. hevc_parser_select="golomb"

  2498. mpegvideo_parser_select="mpegvideo"

  2499. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2500. vc1_parser_select="mpegvideo startcode vc1_decoder"

  2501. 

  2502. # bitstream_filters

  2503. mjpeg2jpeg_bsf_select="jpegtables"

  2504. 

  2505. # external libraries

  2506. libaacplus_encoder_deps="libaacplus"

  2507. libcelt_decoder_deps="libcelt"

  2508. libdcadec_decoder_deps="libdcadec"

  2509. libfaac_encoder_deps="libfaac"

  2510. libfaac_encoder_select="audio_frame_queue"

  2511. libfdk_aac_decoder_deps="libfdk_aac"

  2512. libfdk_aac_encoder_deps="libfdk_aac"

  2513. libfdk_aac_encoder_select="audio_frame_queue"

  2514. libgme_demuxer_deps="libgme"

  2515. libgsm_decoder_deps="libgsm"

  2516. libgsm_encoder_deps="libgsm"

  2517. libgsm_ms_decoder_deps="libgsm"

  2518. libgsm_ms_encoder_deps="libgsm"

  2519. libilbc_decoder_deps="libilbc"

  2520. libilbc_encoder_deps="libilbc"

  2521. libkvazaar_encoder_deps="libkvazaar"

  2522. libmodplug_demuxer_deps="libmodplug"

  2523. libmp3lame_encoder_deps="libmp3lame"

  2524. libmp3lame_encoder_select="audio_frame_queue"

  2525. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2526. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2527. libopencore_amrnb_encoder_select="audio_frame_queue"

  2528. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2529. libopenh264_encoder_deps="libopenh264"

  2530. libopenjpeg_decoder_deps="libopenjpeg"

  2531. libopenjpeg_encoder_deps="libopenjpeg"

  2532. libopus_decoder_deps="libopus"

  2533. libopus_encoder_deps="libopus"

  2534. libopus_encoder_select="audio_frame_queue"

  2535. libquvi_demuxer_deps="libquvi"

  2536. libschroedinger_decoder_deps="libschroedinger"

  2537. libschroedinger_encoder_deps="libschroedinger"

  2538. libshine_encoder_deps="libshine"

  2539. libshine_encoder_select="audio_frame_queue"

  2540. libspeex_decoder_deps="libspeex"

  2541. libspeex_encoder_deps="libspeex"

  2542. libspeex_encoder_select="audio_frame_queue"

  2543. libstagefright_h264_decoder_deps="libstagefright_h264"

  2544. libtheora_encoder_deps="libtheora"

  2545. libtwolame_encoder_deps="libtwolame"

  2546. libvo_aacenc_encoder_deps="libvo_aacenc"

  2547. libvo_aacenc_encoder_select="audio_frame_queue"

  2548. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2549. libvorbis_decoder_deps="libvorbis"

  2550. libvorbis_encoder_deps="libvorbis"

  2551. libvorbis_encoder_select="audio_frame_queue"

  2552. libvpx_vp8_decoder_deps="libvpx"

  2553. libvpx_vp8_encoder_deps="libvpx"

  2554. libvpx_vp9_decoder_deps="libvpx"

  2555. libvpx_vp9_encoder_deps="libvpx"

  2556. libwavpack_encoder_deps="libwavpack"

  2557. libwebp_encoder_deps="libwebp"

  2558. libwebp_anim_encoder_deps="libwebp"

  2559. libx262_encoder_deps="libx262"

  2560. libx264_encoder_deps="libx264"

  2561. libx264rgb_encoder_deps="libx264"

  2562. libx264rgb_encoder_select="libx264_encoder"

  2563. libx265_encoder_deps="libx265"

  2564. libxavs_encoder_deps="libxavs"

  2565. libxvid_encoder_deps="libxvid"

  2566. libutvideo_decoder_deps="libutvideo"

  2567. libutvideo_encoder_deps="libutvideo"

  2568. libzvbi_teletext_decoder_deps="libzvbi"

  2569. nvenc_encoder_deps="nvenc"

  2570. nvenc_h264_encoder_deps="nvenc"

  2571. nvenc_hevc_encoder_deps="nvenc"

  2572. 

  2573. # demuxers / muxers

  2574. ac3_demuxer_select="ac3_parser"

  2575. asf_demuxer_select="riffdec"

  2576. asf_o_demuxer_select="riffdec"

  2577. asf_muxer_select="riffenc"

  2578. asf_stream_muxer_select="asf_muxer"

  2579. avi_demuxer_select="riffdec exif"

  2580. avi_muxer_select="riffenc"

  2581. avisynth_demuxer_deps="avisynth"

  2582. avisynth_demuxer_select="riffdec"

  2583. caf_demuxer_select="riffdec"

  2584. dash_muxer_select="mp4_muxer"

  2585. dirac_demuxer_select="dirac_parser"

  2586. dts_demuxer_select="dca_parser"

  2587. dtshd_demuxer_select="dca_parser"

  2588. dv_demuxer_select="dvprofile"

  2589. dv_muxer_select="dvprofile"

  2590. dxa_demuxer_select="riffdec"

  2591. eac3_demuxer_select="ac3_parser"

  2592. f4v_muxer_select="mov_muxer"

  2593. flac_demuxer_select="flac_parser"

  2594. hds_muxer_select="flv_muxer"

  2595. hls_muxer_select="mpegts_muxer"

  2596. image2_alias_pix_demuxer_select="image2_demuxer"

  2597. image2_brender_pix_demuxer_select="image2_demuxer"

  2598. ipod_muxer_select="mov_muxer"

  2599. ismv_muxer_select="mov_muxer"

  2600. libnut_demuxer_deps="libnut"

  2601. libnut_muxer_deps="libnut"

  2602. matroska_audio_muxer_select="matroska_muxer"

  2603. matroska_demuxer_select="riffdec"

  2604. matroska_demuxer_suggest="bzlib lzo zlib"

  2605. matroska_muxer_select="riffenc"

  2606. mmf_muxer_select="riffenc"

  2607. mov_demuxer_select="riffdec"

  2608. mov_demuxer_suggest="zlib"

  2609. mov_muxer_select="riffenc rtpenc_chain"

  2610. mp3_demuxer_select="mpegaudio_parser"

  2611. mp4_muxer_select="mov_muxer"

  2612. mpegts_muxer_select="adts_muxer latm_muxer"

  2613. mpegtsraw_demuxer_select="mpegts_demuxer"

  2614. mxf_d10_muxer_select="mxf_muxer"

  2615. mxf_opatom_muxer_select="mxf_muxer"

  2616. nut_muxer_select="riffenc"

  2617. nuv_demuxer_select="riffdec"

  2618. oga_muxer_select="ogg_muxer"

  2619. ogg_demuxer_select="golomb"

  2620. opus_muxer_select="ogg_muxer"

  2621. psp_muxer_select="mov_muxer"

  2622. rtp_demuxer_select="sdp_demuxer"

  2623. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"

  2624. rtsp_demuxer_select="http_protocol rtpdec"

  2625. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2626. sap_demuxer_select="sdp_demuxer"

  2627. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2628. sdp_demuxer_select="rtpdec"

  2629. smoothstreaming_muxer_select="ismv_muxer"

  2630. spdif_muxer_select="aac_parser"

  2631. spx_muxer_select="ogg_muxer"

  2632. tak_demuxer_select="tak_parser"

  2633. tg2_muxer_select="mov_muxer"

  2634. tgp_muxer_select="mov_muxer"

  2635. vobsub_demuxer_select="mpegps_demuxer"

  2636. w64_demuxer_select="wav_demuxer"

  2637. w64_muxer_select="wav_muxer"

  2638. wav_demuxer_select="riffdec"

  2639. wav_muxer_select="riffenc"

  2640. webm_muxer_select="riffenc"

  2641. wtv_demuxer_select="riffdec"

  2642. wtv_muxer_select="riffenc"

  2643. xmv_demuxer_select="riffdec"

  2644. xwma_demuxer_select="riffdec"

  2645. 

  2646. # indevs / outdevs

  2647. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2648. alsa_outdev_deps="alsa_asoundlib_h"

  2649. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2650. avfoundation_indev_select="avfoundation"

  2651. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2652. caca_outdev_deps="libcaca"

  2653. decklink_outdev_deps="decklink pthreads"

  2654. decklink_outdev_extralibs="-lstdc++"

  2655. decklink_indev_deps="decklink pthreads"

  2656. decklink_indev_extralibs="-lstdc++"

  2657. dshow_indev_deps="IBaseFilter"

  2658. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2659. dv1394_indev_deps="dv1394"

  2660. dv1394_indev_select="dv_demuxer"

  2661. fbdev_indev_deps="linux_fb_h"

  2662. fbdev_outdev_deps="linux_fb_h"

  2663. gdigrab_indev_deps="CreateDIBSection"

  2664. gdigrab_indev_extralibs="-lgdi32"

  2665. gdigrab_indev_select="bmp_decoder"

  2666. iec61883_indev_deps="libiec61883"

  2667. jack_indev_deps="jack_jack_h sem_timedwait"

  2668. lavfi_indev_deps="avfilter"

  2669. libcdio_indev_deps="libcdio"

  2670. libdc1394_indev_deps="libdc1394"

  2671. libv4l2_indev_deps="libv4l2"

  2672. openal_indev_deps="openal"

  2673. opengl_outdev_deps="opengl"

  2674. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2675. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2676. pulse_indev_deps="libpulse"

  2677. pulse_outdev_deps="libpulse"

  2678. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2679. qtkit_indev_select="qtkit"

  2680. sdl_outdev_deps="sdl"

  2681. sndio_indev_deps="sndio_h"

  2682. sndio_outdev_deps="sndio_h"

  2683. v4l_indev_deps="linux_videodev_h"

  2684. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2685. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2686. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2687. vfwcap_indev_extralibs="-lavicap32"

  2688. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2689. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2690. x11grab_indev_deps="x11grab"

  2691. x11grab_xcb_indev_deps="libxcb"

  2692. 

  2693. # protocols

  2694. async_protocol_deps="pthreads"

  2695. bluray_protocol_deps="libbluray"

  2696. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2697. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2698. ffrtmpcrypt_protocol_select="tcp_protocol"

  2699. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2700. ffrtmphttp_protocol_select="http_protocol"

  2701. ftp_protocol_select="tcp_protocol"

  2702. gopher_protocol_select="network"

  2703. http_protocol_select="tcp_protocol"

  2704. httpproxy_protocol_select="tcp_protocol"

  2705. https_protocol_select="tls_protocol"

  2706. icecast_protocol_select="http_protocol"

  2707. librtmp_protocol_deps="librtmp"

  2708. librtmpe_protocol_deps="librtmp"

  2709. librtmps_protocol_deps="librtmp"

  2710. librtmpt_protocol_deps="librtmp"

  2711. librtmpte_protocol_deps="librtmp"

  2712. libsmbclient_protocol_deps="libsmbclient gplv3"

  2713. libssh_protocol_deps="libssh"

  2714. mmsh_protocol_select="http_protocol"

  2715. mmst_protocol_select="network"

  2716. rtmp_protocol_deps="!librtmp_protocol"

  2717. rtmp_protocol_select="tcp_protocol"

  2718. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2719. rtmps_protocol_deps="!librtmp_protocol"

  2720. rtmps_protocol_select="tls_protocol"

  2721. rtmpt_protocol_select="ffrtmphttp_protocol"

  2722. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2723. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2724. rtp_protocol_select="udp_protocol"

  2725. sctp_protocol_deps="struct_sctp_event_subscribe"

  2726. sctp_protocol_select="network"

  2727. srtp_protocol_select="rtp_protocol"

  2728. tcp_protocol_select="network"

  2729. tls_gnutls_protocol_deps="gnutls !tls_securetransport_protocol"

  2730. tls_gnutls_protocol_select="tcp_protocol"

  2731. tls_openssl_protocol_deps="openssl !tls_securetransport_protocol !tls_gnutls_protocol"

  2732. tls_openssl_protocol_select="tcp_protocol"

  2733. tls_securetransport_protocol_deps="securetransport"

  2734. tls_securetransport_protocol_select="tcp_protocol"

  2735. tls_protocol_deps_any="tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  2736. udp_protocol_select="network"

  2737. udplite_protocol_select="network"

  2738. unix_protocol_deps="sys_un_h"

  2739. unix_protocol_select="network"

  2740. 

  2741. # filters

  2742. amovie_filter_deps="avcodec avformat"

  2743. aresample_filter_deps="swresample"

  2744. ass_filter_deps="libass"

  2745. asyncts_filter_deps="avresample"

  2746. atempo_filter_deps="avcodec"

  2747. atempo_filter_select="rdft"

  2748. azmq_filter_deps="libzmq"

  2749. blackframe_filter_deps="gpl"

  2750. boxblur_filter_deps="gpl"

  2751. bs2b_filter_deps="libbs2b"

  2752. colormatrix_filter_deps="gpl"

  2753. cover_rect_filter_deps="avcodec avformat gpl"

  2754. cropdetect_filter_deps="gpl"

  2755. delogo_filter_deps="gpl"

  2756. deshake_filter_select="pixelutils"

  2757. drawtext_filter_deps="libfreetype"

  2758. dynaudnorm_filter_deps="copysign erf"

  2759. ebur128_filter_deps="gpl"

  2760. eq_filter_deps="gpl"

  2761. fftfilt_filter_deps="avcodec"

  2762. fftfilt_filter_select="rdft"

  2763. flite_filter_deps="libflite"

  2764. find_rect_filter_deps="avcodec avformat gpl"

  2765. frei0r_filter_deps="frei0r dlopen"

  2766. frei0r_src_filter_deps="frei0r dlopen"

  2767. fspp_filter_deps="gpl"

  2768. geq_filter_deps="gpl"

  2769. histeq_filter_deps="gpl"

  2770. hqdn3d_filter_deps="gpl"

  2771. interlace_filter_deps="gpl"

  2772. kerndeint_filter_deps="gpl"

  2773. ladspa_filter_deps="ladspa dlopen"

  2774. mcdeint_filter_deps="avcodec gpl"

  2775. movie_filter_deps="avcodec avformat"

  2776. mpdecimate_filter_deps="gpl"

  2777. mpdecimate_filter_select="pixelutils"

  2778. mptestsrc_filter_deps="gpl"

  2779. negate_filter_deps="lut_filter"

  2780. perspective_filter_deps="gpl"

  2781. pp7_filter_deps="gpl"

  2782. ocr_filter_deps="libtesseract"

  2783. ocv_filter_deps="libopencv"

  2784. owdenoise_filter_deps="gpl"

  2785. pan_filter_deps="swresample"

  2786. phase_filter_deps="gpl"

  2787. pp_filter_deps="gpl postproc"

  2788. pullup_filter_deps="gpl"

  2789. removelogo_filter_deps="avcodec avformat swscale"

  2790. repeatfields_filter_deps="gpl"

  2791. resample_filter_deps="avresample"

  2792. sab_filter_deps="gpl swscale"

  2793. scale_filter_deps="swscale"

  2794. scale2ref_filter_deps="swscale"

  2795. select_filter_select="pixelutils"

  2796. smartblur_filter_deps="gpl swscale"

  2797. showcqt_filter_deps="avcodec"

  2798. showcqt_filter_select="fft"

  2799. showfreqs_filter_deps="avcodec"

  2800. showfreqs_filter_select="fft"

  2801. showspectrum_filter_deps="avcodec"

  2802. showspectrum_filter_select="rdft"

  2803. spp_filter_deps="gpl avcodec"

  2804. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  2805. stereo3d_filter_deps="gpl"

  2806. subtitles_filter_deps="avformat avcodec libass"

  2807. super2xsai_filter_deps="gpl"

  2808. tinterlace_filter_deps="gpl"

  2809. vidstabdetect_filter_deps="libvidstab"

  2810. vidstabtransform_filter_deps="libvidstab"

  2811. pixfmts_super2xsai_test_deps="super2xsai_filter"

  2812. tinterlace_merge_test_deps="tinterlace_filter"

  2813. tinterlace_pad_test_deps="tinterlace_filter"

  2814. uspp_filter_deps="gpl avcodec"

  2815. zmq_filter_deps="libzmq"

  2816. zoompan_filter_deps="swscale"

  2817. 

  2818. # examples

  2819. avio_reading="avformat avcodec avutil"

  2820. avio_dir_cmd="avformat avutil"

  2821. avcodec_example_deps="avcodec avutil"

  2822. decoding_encoding_example_deps="avcodec avformat avutil"

  2823. demuxing_decoding_example_deps="avcodec avformat avutil"

  2824. extract_mvs_example_deps="avcodec avformat avutil"

  2825. filter_audio_example_deps="avfilter avutil"

  2826. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  2827. filtering_video_example_deps="avfilter avcodec avformat avutil"

  2828. metadata_example_deps="avformat avutil"

  2829. muxing_example_deps="avcodec avformat avutil swscale"

  2830. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  2831. remuxing_example_deps="avcodec avformat avutil"

  2832. resampling_audio_example_deps="avutil swresample"

  2833. scaling_video_example_deps="avutil swscale"

  2834. transcode_aac_example_deps="avcodec avformat swresample"

  2835. transcoding_example_deps="avfilter avcodec avformat avutil"

  2836. 

  2837. # libraries, in linking order

  2838. avcodec_deps="avutil"

  2839. avdevice_deps="avformat avcodec avutil"

  2840. avfilter_deps="avutil"

  2841. avformat_deps="avcodec avutil"

  2842. avresample_deps="avutil"

  2843. postproc_deps="avutil gpl"

  2844. swresample_deps="avutil"

  2845. swscale_deps="avutil"

  2846. 

  2847. # programs

  2848. ffmpeg_deps="avcodec avfilter avformat swresample"

  2849. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  2850.                null_filter

  2851.                setpts_filter trim_filter"

  2852. ffplay_deps="avcodec avformat swscale swresample sdl"

  2853. ffplay_libs='$sdl_libs'

  2854. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  2855. ffprobe_deps="avcodec avformat"

  2856. ffserver_deps="avformat fork sarestart"

  2857. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  2858. 

  2859. # documentation

  2860. podpages_deps="perl"

  2861. manpages_deps="perl pod2man"

  2862. htmlpages_deps="perl"

  2863. htmlpages_deps_any="makeinfo_html texi2html"

  2864. txtpages_deps="perl makeinfo"

  2865. doc_deps_any="manpages htmlpages podpages txtpages"

  2866. 

  2867. # default parameters

  2868. 

  2869. logfile="config.log"

  2870. 

  2871. # installation paths

  2872. prefix_default="/usr/local"

  2873. bindir_default='${prefix}/bin'

  2874. datadir_default='${prefix}/share/ffmpeg'

  2875. docdir_default='${prefix}/share/doc/ffmpeg'

  2876. incdir_default='${prefix}/include'

  2877. libdir_default='${prefix}/lib'

  2878. mandir_default='${prefix}/share/man'

  2879. 

  2880. # toolchain

  2881. ar_default="ar"

  2882. cc_default="gcc"

  2883. cxx_default="g++"

  2884. host_cc_default="gcc"

  2885. cp_f="cp -f"

  2886. doxygen_default="doxygen"

  2887. install="install"

  2888. ln_s="ln -s -f"

  2889. nm_default="nm -g"

  2890. objformat="elf"

  2891. pkg_config_default=pkg-config

  2892. ranlib_default="ranlib"

  2893. strip_default="strip"

  2894. yasmexe_default="yasm"

  2895. windres_default="windres"

  2896. 

  2897. # OS

  2898. target_os_default=$(tolower $(uname -s))

  2899. host_os=$target_os_default

  2900. 

  2901. # machine

  2902. if test "$target_os_default" = aix; then

  2903.     arch_default=$(uname -p)

  2904.     strip_default="strip -X32_64"

  2905. else

  2906.     arch_default=$(uname -m)

  2907. fi

  2908. cpu="generic"

  2909. intrinsics="none"

  2910. 

  2911. # configurable options

  2912. enable $PROGRAM_LIST

  2913. enable $DOCUMENT_LIST

  2914. enable $EXAMPLE_LIST

  2915. enable $(filter_out avresample $LIBRARY_LIST)

  2916. enable stripping

  2917. 

  2918. enable asm

  2919. enable debug

  2920. enable doc

  2921. enable faan faandct faanidct

  2922. enable optimizations

  2923. enable runtime_cpudetect

  2924. enable safe_bitstream_reader

  2925. enable static

  2926. enable swscale_alpha

  2927. enable valgrind_backtrace

  2928. 

  2929. sws_max_filter_size_default=256

  2930. set_default sws_max_filter_size

  2931. 

  2932. # Enable hwaccels by default.

  2933. enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc

  2934. enable xlib

  2935. 

  2936. # build settings

  2937. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  2938. LIBPREF="lib"

  2939. LIBSUF=".a"

  2940. FULLNAME='$(NAME)$(BUILDSUF)'

  2941. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  2942. SLIBPREF="lib"

  2943. SLIBSUF=".so"

  2944. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  2945. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  2946. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  2947. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  2948. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  2949. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  2950. 

  2951. asflags_filter=echo

  2952. cflags_filter=echo

  2953. ldflags_filter=echo

  2954. 

  2955. AS_C='-c'

  2956. AS_O='-o $@'

  2957. CC_C='-c'

  2958. CC_E='-E -o $@'

  2959. CC_O='-o $@'

  2960. CXX_C='-c'

  2961. CXX_O='-o $@'

  2962. LD_O='-o $@'

  2963. LD_LIB='-l%'

  2964. LD_PATH='-L'

  2965. HOSTCC_C='-c'

  2966. HOSTCC_E='-E -o $@'

  2967. HOSTCC_O='-o $@'

  2968. HOSTLD_O='-o $@'

  2969. 

  2970. host_libs='-lm'

  2971. host_cflags_filter=echo

  2972. host_ldflags_filter=echo

  2973. 

  2974. target_path='$(CURDIR)'

  2975. 

  2976. # since the object filename is not given with the -MM flag, the compiler

  2977. # is only able to print the basename, and we must add the path ourselves

  2978. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'

  2979. DEPFLAGS='-MM'

  2980. 

  2981. # find source path

  2982. if test -f configure; then

  2983.     source_path=.

  2984. else

  2985.     source_path=$(cd $(dirname "$0"); pwd)

  2986.     case "$source_path" in

  2987.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  2988.     esac

  2989.     test -e "$source_path/config.h" &&

  2990.         die "Out of tree builds are impossible with config.h in source dir."

  2991. fi

  2992. 

  2993. for v in "$@"; do

  2994.     r=${v#*=}

  2995.     l=${v%"$r"}

  2996.     r=$(sh_quote "$r")

  2997.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  2998. done

  2999. 

  3000. find_things(){

  3001.     thing=$1

  3002.     pattern=$2

  3003.     file=$source_path/$3

  3004.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3005. }

  3006. 

  3007. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3008. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3009. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3010. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3011. BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)

  3012. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3013. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3014. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3015. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3016. PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)

  3017. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3018. 

  3019. ALL_COMPONENTS="

  3020.     $BSF_LIST

  3021.     $DECODER_LIST

  3022.     $DEMUXER_LIST

  3023.     $ENCODER_LIST

  3024.     $FILTER_LIST

  3025.     $HWACCEL_LIST

  3026.     $INDEV_LIST

  3027.     $MUXER_LIST

  3028.     $OUTDEV_LIST

  3029.     $PARSER_LIST

  3030.     $PROTOCOL_LIST

  3031. "

  3032. 

  3033. for n in $COMPONENT_LIST; do

  3034.     v=$(toupper ${n%s})_LIST

  3035.     eval enable \$$v

  3036.     eval ${n}_if_any="\$$v"

  3037. done

  3038. 

  3039. enable $ARCH_EXT_LIST

  3040. 

  3041. die_unknown(){

  3042.     echo "Unknown option \"$1\"."

  3043.     echo "See $0 --help for available options."

  3044.     exit 1

  3045. }

  3046. 

  3047. print_in_columns() {

  3048.     cols=$(expr $ncols / 24)

  3049.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3050. }

  3051. 

  3052. show_list() {

  3053.     suffix=_$1

  3054.     shift

  3055.     echo $* | sed s/$suffix//g | print_in_columns

  3056.     exit 0

  3057. }

  3058. 

  3059. rand_list(){

  3060.     IFS=', '

  3061.     set -- $*

  3062.     unset IFS

  3063.     for thing; do

  3064.         comp=${thing%:*}

  3065.         prob=${thing#$comp}

  3066.         prob=${prob#:}

  3067.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3068.         echo "prob ${prob:-0.5}"

  3069.         printf '%s\n' $comp

  3070.     done

  3071. }

  3072. 

  3073. do_random(){

  3074.     action=$1

  3075.     shift

  3076.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3077.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3078. }

  3079. 

  3080. for opt do

  3081.     optval="${opt#*=}"

  3082.     case "$opt" in

  3083.         --extra-ldflags=*)

  3084.             add_ldflags $optval

  3085.         ;;

  3086.         --extra-ldexeflags=*)

  3087.             add_ldexeflags $optval

  3088.         ;;

  3089.         --extra-ldlibflags=*)

  3090.             add_ldlibflags $optval

  3091.         ;;

  3092.         --extra-libs=*)

  3093.             add_extralibs $optval

  3094.         ;;

  3095.         --disable-devices)

  3096.             disable $INDEV_LIST $OUTDEV_LIST

  3097.         ;;

  3098.         --enable-debug=*)

  3099.             debuglevel="$optval"

  3100.         ;;

  3101.         --disable-programs)

  3102.             disable $PROGRAM_LIST

  3103.         ;;

  3104.         --disable-everything)

  3105.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3106.         ;;

  3107.         --disable-all)

  3108.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3109.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3110.         ;;

  3111.         --enable-random|--disable-random)

  3112.             action=${opt%%-random}

  3113.             do_random ${action#--} $COMPONENT_LIST

  3114.         ;;

  3115.         --enable-random=*|--disable-random=*)

  3116.             action=${opt%%-random=*}

  3117.             do_random ${action#--} $optval

  3118.         ;;

  3119.         --enable-*=*|--disable-*=*)

  3120.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3121.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3122.             eval list=\$$(toupper $thing)_LIST

  3123.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3124.             list=$(filter "$name" $list)

  3125.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3126.             $action $list

  3127.         ;;

  3128.         --enable-?*|--disable-?*)

  3129.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3130.             if is_in $option $COMPONENT_LIST; then

  3131.                 test $action = disable && action=unset

  3132.                 eval $action \$$(toupper ${option%s})_LIST

  3133.             elif is_in $option $CMDLINE_SELECT; then

  3134.                 $action $option

  3135.             else

  3136.                 die_unknown $opt

  3137.             fi

  3138.         ;;

  3139.         --list-*)

  3140.             NAME="${opt#--list-}"

  3141.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3142.             NAME=${NAME%s}

  3143.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3144.         ;;

  3145.         --help|-h) show_help

  3146.         ;;

  3147.         --fatal-warnings) enable fatal_warnings

  3148.         ;;

  3149.         *)

  3150.             optname="${opt%%=*}"

  3151.             optname="${optname#--}"

  3152.             optname=$(echo "$optname" | sed 's/-/_/g')

  3153.             if is_in $optname $CMDLINE_SET; then

  3154.                 eval $optname='$optval'

  3155.             elif is_in $optname $CMDLINE_APPEND; then

  3156.                 append $optname "$optval"

  3157.             else

  3158.                 die_unknown $opt

  3159.             fi

  3160.         ;;

  3161.     esac

  3162. done

  3163. 

  3164. for e in $env; do

  3165.     eval "export $e"

  3166. done

  3167. 

  3168. disabled logging && logfile=/dev/null

  3169. 

  3170. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3171. set >> $logfile

  3172. 

  3173. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3174. 

  3175. case "$toolchain" in

  3176.     clang-asan)

  3177.         cc_default="clang"

  3178.         add_cflags  -fsanitize=address

  3179.         add_ldflags -fsanitize=address

  3180.     ;;

  3181.     clang-tsan)

  3182.         cc_default="clang"

  3183.         add_cflags  -fsanitize=thread -pie

  3184.         add_ldflags -fsanitize=thread -pie

  3185.     ;;

  3186.     clang-usan)

  3187.         cc_default="clang"

  3188.         add_cflags  -fsanitize=undefined

  3189.         add_ldflags -fsanitize=undefined

  3190.     ;;

  3191.     gcc-asan)

  3192.         cc_default="gcc"

  3193.         add_cflags  -fsanitize=address

  3194.         add_ldflags -fsanitize=address

  3195.     ;;

  3196.     gcc-tsan)

  3197.         cc_default="gcc"

  3198.         add_cflags  -fsanitize=thread -pie -fPIC

  3199.         add_ldflags -fsanitize=thread -pie -fPIC

  3200.     ;;

  3201.     gcc-usan)

  3202.         cc_default="gcc"

  3203.         add_cflags  -fsanitize=undefined

  3204.         add_ldflags -fsanitize=undefined

  3205.     ;;

  3206.     valgrind-massif)

  3207.         target_exec_default=${valgrind:-"valgrind"}

  3208.         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"

  3209.     ;;

  3210.     valgrind-memcheck)

  3211.         target_exec_default=${valgrind:-"valgrind"}

  3212.         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"

  3213.     ;;

  3214.     msvc)

  3215.         # Check whether the current MSVC version needs the C99 converter.

  3216.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3217.         # support enough of C99 to build ffmpeg. Default to the new

  3218.         # behaviour if the regexp was unable to match anything, since this

  3219.         # successfully parses the version number of existing supported

  3220.         # versions that require the converter (MSVC 2010 and 2012).

  3221.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3222.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3223.             cc_default="cl"

  3224.         else

  3225.             cc_default="c99wrap cl"

  3226.         fi

  3227.         ld_default="$source_path/compat/windows/mslink"

  3228.         nm_default="dumpbin -symbols"

  3229.         ar_default="lib"

  3230.         case "$arch" in

  3231.         arm*)

  3232.             as_default="armasm"

  3233.             ;;

  3234.         esac

  3235.         target_os_default="win32"

  3236.         # Use a relative path for TMPDIR. This makes sure all the

  3237.         # ffconf temp files are written with a relative path, avoiding

  3238.         # issues with msys/win32 path conversion for MSVC parameters

  3239.         # such as -Fo<file> or -out:<file>.

  3240.         TMPDIR=.

  3241.     ;;

  3242.     icl)

  3243.         cc_default="icl"

  3244.         ld_default="xilink"

  3245.         nm_default="dumpbin -symbols"

  3246.         ar_default="xilib"

  3247.         target_os_default="win32"

  3248.         TMPDIR=.

  3249.     ;;

  3250.     gcov)

  3251.         add_cflags  -fprofile-arcs -ftest-coverage

  3252.         add_ldflags -fprofile-arcs -ftest-coverage

  3253.     ;;

  3254.     hardened)

  3255.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3256.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3257.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3258.     ;;

  3259.     ?*)

  3260.         die "Unknown toolchain $toolchain"

  3261.     ;;

  3262. esac

  3263. 

  3264. test -n "$cross_prefix" && enable cross_compile

  3265. 

  3266. if enabled cross_compile; then

  3267.     test -n "$arch" && test -n "$target_os" ||

  3268.         die "Must specify target arch and OS when cross-compiling"

  3269. fi

  3270. 

  3271. ar_default="${cross_prefix}${ar_default}"

  3272. cc_default="${cross_prefix}${cc_default}"

  3273. cxx_default="${cross_prefix}${cxx_default}"

  3274. nm_default="${cross_prefix}${nm_default}"

  3275. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3276. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3277.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3278. else

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

  3280. fi

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

  3282. windres_default="${cross_prefix}${windres_default}"

  3283. 

  3284. sysinclude_default="${sysroot}/usr/include"

  3285. 

  3286. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3287.     target_exec target_os yasmexe

  3288. enabled cross_compile || host_cc_default=$cc

  3289. set_default host_cc

  3290. 

  3291. pkg_config_fail_message=""

  3292. if ! $pkg_config --version >/dev/null 2>&1; then

  3293.     warn "$pkg_config not found, library detection may fail."

  3294.     pkg_config=false

  3295. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3296.     pkg_config_fail_message="

  3297. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3298. fi

  3299. 

  3300. if test $doxygen != $doxygen_default && \

  3301.   ! $doxygen --version >/dev/null 2>&1; then

  3302.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3303. fi

  3304. 

  3305. exesuf() {

  3306.     case $1 in

  3307.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3308.     esac

  3309. }

  3310. 

  3311. EXESUF=$(exesuf $target_os)

  3312. HOSTEXESUF=$(exesuf $host_os)

  3313. 

  3314. # set temporary file name

  3315. : ${TMPDIR:=$TEMPDIR}

  3316. : ${TMPDIR:=$TMP}

  3317. : ${TMPDIR:=/tmp}

  3318. 

  3319. if [ -n "$tempprefix" ] ; then

  3320.     mktemp(){

  3321.         echo $tempprefix.${HOSTNAME}.${UID}

  3322.     }

  3323. elif ! check_cmd mktemp -u XXXXXX; then

  3324.     # simple replacement for missing mktemp

  3325.     # NOT SAFE FOR GENERAL USE

  3326.     mktemp(){

  3327.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3328.     }

  3329. fi

  3330. 

  3331. tmpfile(){

  3332.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3333.         (set -C; exec > $tmp) 2>/dev/null ||

  3334.         die "Unable to create temporary file in $TMPDIR."

  3335.     append TMPFILES $tmp

  3336.     eval $1=$tmp

  3337. }

  3338. 

  3339. trap 'rm -f -- $TMPFILES' EXIT

  3340. 

  3341. tmpfile TMPASM .asm

  3342. tmpfile TMPC   .c

  3343. tmpfile TMPCPP .cpp

  3344. tmpfile TMPE   $EXESUF

  3345. tmpfile TMPH   .h

  3346. tmpfile TMPM   .m

  3347. tmpfile TMPO   .o

  3348. tmpfile TMPS   .S

  3349. tmpfile TMPSH  .sh

  3350. tmpfile TMPV   .ver

  3351. 

  3352. unset -f mktemp

  3353. 

  3354. chmod +x $TMPE

  3355. 

  3356. # make sure we can execute files in $TMPDIR

  3357. cat > $TMPSH 2>> $logfile <<EOF

  3358. #! /bin/sh

  3359. EOF

  3360. chmod +x $TMPSH >> $logfile 2>&1

  3361. if ! $TMPSH >> $logfile 2>&1; then

  3362.     cat <<EOF

  3363. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3364. variable to another directory and make sure that it is not mounted noexec.

  3365. EOF

  3366.     die "Sanity test failed."

  3367. fi

  3368. 

  3369. armasm_flags(){

  3370.     for flag; do

  3371.         case $flag in

  3372.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3373.             # be passed to gas-preprocessor

  3374.             -M[TD]*)                                            ;;

  3375.             *)                  echo $flag                      ;;

  3376.         esac

  3377.    done

  3378. }

  3379. 

  3380. ccc_flags(){

  3381.     for flag; do

  3382.         case $flag in

  3383.             -std=c99)           echo -c99                       ;;

  3384.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3385.             -mieee)             echo -ieee                      ;;

  3386.             -O*|-fast)          echo $flag                      ;;

  3387.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3388.             -g)                 echo -g3                        ;;

  3389.             -Wall)              echo -msg_enable level2         ;;

  3390.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3391.             -Wl,*)              echo $flag                      ;;

  3392.             -f*|-W*)                                            ;;

  3393.             *)                  echo $flag                      ;;

  3394.         esac

  3395.    done

  3396. }

  3397. 

  3398. cparser_flags(){

  3399.     for flag; do

  3400.         case $flag in

  3401.             -Wno-switch)             echo -Wno-switch-enum ;;

  3402.             -Wno-format-zero-length) ;;

  3403.             -Wdisabled-optimization) ;;

  3404.             -Wno-pointer-sign)       echo -Wno-other ;;

  3405.             *)                       echo $flag ;;

  3406.         esac

  3407.     done

  3408. }

  3409. 

  3410. msvc_common_flags(){

  3411.     for flag; do

  3412.         case $flag in

  3413.             # In addition to specifying certain flags under the compiler

  3414.             # specific filters, they must be specified here as well or else the

  3415.             # generic catch all at the bottom will print the original flag.

  3416.             -Wall)                ;;

  3417.             -std=c99)             ;;

  3418.             # Common flags

  3419.             -fomit-frame-pointer) ;;

  3420.             -g)                   echo -Z7 ;;

  3421.             -fno-math-errno)      ;;

  3422.             -fno-common)          ;;

  3423.             -fno-signed-zeros)    ;;

  3424.             -fPIC)                ;;

  3425.             -mthumb)              ;;

  3426.             -march=*)             ;;

  3427.             -lz)                  echo zlib.lib ;;

  3428.             -lavifil32)           echo vfw32.lib ;;

  3429.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3430.             -l*)                  echo ${flag#-l}.lib ;;

  3431.             -LARGEADDRESSAWARE)   echo $flag ;;

  3432.             -L*)                  echo -libpath:${flag#-L} ;;

  3433.             *)                    echo $flag ;;

  3434.         esac

  3435.     done

  3436. }

  3437. 

  3438. msvc_flags(){

  3439.     msvc_common_flags "$@"

  3440.     for flag; do

  3441.         case $flag in

  3442.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3443.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3444.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3445.                                        -wd4307 \

  3446.                                        -wd4273 -wd4554 -wd4701 ;;

  3447.         esac

  3448.     done

  3449. }

  3450. 

  3451. icl_flags(){

  3452.     msvc_common_flags "$@"

  3453.     for flag; do

  3454.         case $flag in

  3455.             # Despite what Intel's documentation says -Wall, which is supported

  3456.             # on Windows, does enable remarks so disable them here.

  3457.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3458.             -std=c99)             echo -Qstd=c99 ;;

  3459.             -flto)                echo -ipo ;;

  3460.         esac

  3461.     done

  3462. }

  3463. 

  3464. icc_flags(){

  3465.     for flag; do

  3466.         case $flag in

  3467.             -flto)                echo -ipo ;;

  3468.             *)                    echo $flag ;;

  3469.         esac

  3470.     done

  3471. }

  3472. 

  3473. pgi_flags(){

  3474.     for flag; do

  3475.         case $flag in

  3476.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3477.             -fomit-frame-pointer) echo -Mnoframe ;;

  3478.             -g)                   echo -gopt ;;

  3479.             *)                    echo $flag ;;

  3480.         esac

  3481.     done

  3482. }

  3483. 

  3484. suncc_flags(){

  3485.     for flag; do

  3486.         case $flag in

  3487.             -march=*|-mcpu=*)

  3488.                 case "${flag#*=}" in

  3489.                     native)                   echo -xtarget=native       ;;

  3490.                     v9|niagara)               echo -xarch=sparc          ;;

  3491.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3492.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3493.                     i586|pentium)             echo -xchip=pentium        ;;

  3494.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3495.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3496.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3497.                     pentium4*)          echo -xtarget=pentium4           ;;

  3498.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3499.                     *-sse3)             echo -xarch=sse3                 ;;

  3500.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3501.                     bonnell)                   echo -xarch=ssse3         ;;

  3502.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3503.                     westmere)                  echo -xtarget=westmere    ;;

  3504.                     silvermont)                echo -xarch=sse4_2        ;;

  3505.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3506.                     core-avx*|ivybridge|haswell|broadwell)

  3507.                                                echo -xarch=avx           ;;

  3508.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3509.                     btver1)                    echo -xarch=amdsse4a      ;;

  3510.                     btver2|bdver*)             echo -xarch=avx           ;;

  3511.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3512.                     k8|opteron|athlon64|athlon-fx)

  3513.                                                echo -xarch=sse2a         ;;

  3514.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3515.                 esac

  3516.                 ;;

  3517.             -std=c99)             echo -xc99              ;;

  3518.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3519.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3520.             -W*,*)                echo $flag              ;;

  3521.             -f*-*|-W*|-mimpure-text)                      ;;

  3522.             -shared)              echo -G                 ;;

  3523.             *)                    echo $flag              ;;

  3524.         esac

  3525.     done

  3526. }

  3527. 

  3528. tms470_flags(){

  3529.     for flag; do

  3530.         case $flag in

  3531.             -march=*|-mcpu=*)

  3532.                 case "${flag#*=}" in

  3533.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3534.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3535.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3536.                     armv6*|arm11*)          echo -mv=6   ;;

  3537.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3538.                                             echo -mv=5e  ;;

  3539.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3540.                 esac

  3541.                 ;;

  3542.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3543.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3544.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3545.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3546.             -msoft-float)   echo --float_support=vfplib       ;;

  3547.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3548.             -g)             echo -g -mn                       ;;

  3549.             -pds=*)         echo $flag                        ;;

  3550.             -D*|-I*)        echo $flag                        ;;

  3551.             --gcc|--abi=*)  echo $flag                        ;;

  3552.             -me)            echo $flag                        ;;

  3553.         esac

  3554.     done

  3555. }

  3556. 

  3557. probe_cc(){

  3558.     pfx=$1

  3559.     _cc=$2

  3560.     first=$3

  3561. 

  3562.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3563.     unset _ld_o _ldflags _ld_lib _ld_path

  3564.     unset _depflags _DEPCMD _DEPFLAGS

  3565.     _flags_filter=echo

  3566. 

  3567.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3568.         true # no-op to avoid reading stdin in following checks

  3569.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3570.         _type=llvm_gcc

  3571.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3572.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3573.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3574.         _cflags_speed='-O3'

  3575.         _cflags_size='-Os'

  3576.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3577.         _type=gcc

  3578.         gcc_version=$($_cc --version | head -n1)

  3579.         gcc_basever=$($_cc -dumpversion)

  3580.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3581.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3582.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3583.         case $gcc_basever in

  3584.             2*) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3585.         esac

  3586.         if [ "$first" = true ]; then

  3587.             case $gcc_basever in

  3588.                 4.2*)

  3589.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3590.             esac

  3591.         fi

  3592.         _cflags_speed='-O3'

  3593.         _cflags_size='-Os'

  3594.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3595.         _type=icc

  3596.         _ident=$($_cc --version | head -n1)

  3597.         _depflags='-MMD'

  3598.         _cflags_speed='-O3'

  3599.         _cflags_size='-Os'

  3600.         _cflags_noopt='-O1'

  3601.         _flags_filter=icc_flags

  3602.     elif $_cc -v 2>&1 | grep -q xlc; then

  3603.         _type=xlc

  3604.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3605.         _cflags_speed='-O5'

  3606.         _cflags_size='-O5 -qcompact'

  3607.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3608.         _type=ccc

  3609.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3610.         _DEPFLAGS='-M'

  3611.         _cflags_speed='-fast'

  3612.         _cflags_size='-O1'

  3613.         _flags_filter=ccc_flags

  3614.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3615.         test -d "$sysroot" || die "No valid sysroot specified."

  3616.         _type=armcc

  3617.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3618.         armcc_conf="$PWD/armcc.conf"

  3619.         $_cc --arm_linux_configure                 \

  3620.              --arm_linux_config_file="$armcc_conf" \

  3621.              --configure_sysroot="$sysroot"        \

  3622.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3623.              die "Error creating armcc configuration file."

  3624.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3625.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3626.         as_default="${cross_prefix}gcc"

  3627.         _depflags='-MMD'

  3628.         _cflags_speed='-O3'

  3629.         _cflags_size='-Os'

  3630.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3631.         _type=tms470

  3632.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3633.         _flags='--gcc --abi=eabi -me'

  3634.         _cc_e='-ppl -fe=$@'

  3635.         _cc_o='-fe=$@'

  3636.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3637.         _cflags_speed='-O3 -mf=5'

  3638.         _cflags_size='-O3 -mf=2'

  3639.         _flags_filter=tms470_flags

  3640.     elif $_cc -v 2>&1 | grep -q clang; then

  3641.         _type=clang

  3642.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3643.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3644.         _cflags_speed='-O3'

  3645.         _cflags_size='-Os'

  3646.     elif $_cc -V 2>&1 | grep -q Sun; then

  3647.         _type=suncc

  3648.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3649.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3650.         _DEPFLAGS='-xM1 -xc99'

  3651.         _ldflags='-std=c99'

  3652.         _cflags_speed='-O5'

  3653.         _cflags_size='-O5 -xspace'

  3654.         _flags_filter=suncc_flags

  3655.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3656.         _type=pathscale

  3657.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3658.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3659.         _cflags_speed='-O2'

  3660.         _cflags_size='-Os'

  3661.         _flags_filter='filter_out -Wdisabled-optimization'

  3662.     elif $_cc -v 2>&1 | grep -q Open64; then

  3663.         _type=open64

  3664.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3665.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3666.         _cflags_speed='-O2'

  3667.         _cflags_size='-Os'

  3668.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3669.     elif $_cc -V 2>&1 | grep -q Portland; then

  3670.         _type=pgi

  3671.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3672.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  3673.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  3674.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  3675.         _cflags_noopt="-O"

  3676.         _flags_filter=pgi_flags

  3677.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  3678.         _type=armasm

  3679.         _ident=$($_cc | head -n1)

  3680.         # 4509: "This form of conditional instruction is deprecated"

  3681.         _flags="-nologo -ignore 4509"

  3682.         _flags_filter=armasm_flags

  3683.     elif $_cc 2>&1 | grep -q Intel; then

  3684.         _type=icl

  3685.         _ident=$($_cc 2>&1 | head -n1)

  3686.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  3687.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  3688.         # versions (tested) as well.

  3689.         _cflags_speed="-O2"

  3690.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  3691.         if $_cc 2>&1 | grep -q Linker; then

  3692.             _ld_o='-out:$@'

  3693.         else

  3694.             _ld_o='-Fe$@'

  3695.         fi

  3696.         _cc_o='-Fo$@'

  3697.         _cc_e='-P'

  3698.         _flags_filter=icl_flags

  3699.         _ld_lib='lib%.a'

  3700.         _ld_path='-libpath:'

  3701.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  3702.         _flags='-nologo -Qdiag-error:4044,10157'

  3703.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  3704.         # with MSVC which enables it by default.

  3705.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  3706.         disable stripping

  3707.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  3708.         _type=msvc

  3709.         _ident=$($_cc 2>&1 | head -n1)

  3710.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  3711.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  3712.         _cflags_speed="-O2"

  3713.         _cflags_size="-O1"

  3714.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  3715.             _ld_o='-out:$@'

  3716.         else

  3717.             _ld_o='-Fe$@'

  3718.         fi

  3719.         _cc_o='-Fo$@'

  3720.         _cc_e='-P -Fi$@'

  3721.         _flags_filter=msvc_flags

  3722.         _ld_lib='lib%.a'

  3723.         _ld_path='-libpath:'

  3724.         _flags='-nologo'

  3725.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS'

  3726.         disable stripping

  3727.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  3728.         _type=cparser

  3729.         _ident=$($_cc --version | head -n1)

  3730.         _depflags='-MMD'

  3731.         _cflags_speed='-O4'

  3732.         _cflags_size='-O2'

  3733.         _flags_filter=cparser_flags

  3734.     fi

  3735. 

  3736.     eval ${pfx}_type=\$_type

  3737.     eval ${pfx}_ident=\$_ident

  3738. }

  3739. 

  3740. set_ccvars(){

  3741.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  3742.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  3743.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  3744. 

  3745.     if [ -n "$_depflags" ]; then

  3746.         eval ${1}_DEPFLAGS=\$_depflags

  3747.     else

  3748.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  3749.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  3750.         eval DEP${1}FLAGS=\$_flags

  3751.     fi

  3752. }

  3753. 

  3754. probe_cc cc "$cc" "true"

  3755. cflags_filter=$_flags_filter

  3756. cflags_speed=$_cflags_speed

  3757. cflags_size=$_cflags_size

  3758. cflags_noopt=$_cflags_noopt

  3759. add_cflags $_flags $_cflags

  3760. cc_ldflags=$_ldflags

  3761. set_ccvars CC

  3762. 

  3763. probe_cc hostcc "$host_cc"

  3764. host_cflags_filter=$_flags_filter

  3765. add_host_cflags  $_flags $_cflags

  3766. set_ccvars HOSTCC

  3767. 

  3768. test -n "$cc_type" && enable $cc_type ||

  3769.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  3770. 

  3771. : ${as_default:=$cc}

  3772. : ${dep_cc_default:=$cc}

  3773. : ${ld_default:=$cc}

  3774. : ${host_ld_default:=$host_cc}

  3775. set_default ar as dep_cc ld host_ld windres

  3776. 

  3777. probe_cc as "$as"

  3778. asflags_filter=$_flags_filter

  3779. add_asflags $_flags $_cflags

  3780. set_ccvars AS

  3781. 

  3782. probe_cc ld "$ld"

  3783. ldflags_filter=$_flags_filter

  3784. add_ldflags $_flags $_ldflags

  3785. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  3786. LD_O=${_ld_o-$LD_O}

  3787. LD_LIB=${_ld_lib-$LD_LIB}

  3788. LD_PATH=${_ld_path-$LD_PATH}

  3789. 

  3790. probe_cc hostld "$host_ld"

  3791. host_ldflags_filter=$_flags_filter

  3792. add_host_ldflags $_flags $_ldflags

  3793. HOSTLD_O=${_ld_o-$HOSTLD_O}

  3794. 

  3795. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  3796.     probe_cc depcc "$dep_cc"

  3797.     CCDEP=${_DEPCMD:-$DEPCMD}

  3798.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  3799.     DEPCCFLAGS=$_flags

  3800. fi

  3801. 

  3802. if $ar 2>&1 | grep -q Microsoft; then

  3803.     arflags="-nologo"

  3804.     ar_o='-out:$@'

  3805. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  3806.     arflags="rq"

  3807.     ar_o='$@'

  3808. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  3809.     arflags='-Xany -r -c'

  3810.     ar_o='$@'

  3811. elif $ar 2>&1 | grep -q "\[D\] "; then

  3812.     arflags="rcD"

  3813.     ar_o='$@'

  3814. else

  3815.     arflags="rc"

  3816.     ar_o='$@'

  3817. fi

  3818. 

  3819. add_cflags $extra_cflags

  3820. add_cxxflags $extra_cxxflags

  3821. add_asflags $extra_cflags

  3822. 

  3823. if test -n "$sysroot"; then

  3824.     case "$cc_type" in

  3825.         gcc|llvm_gcc|clang)

  3826.             add_cppflags --sysroot="$sysroot"

  3827.             add_ldflags --sysroot="$sysroot"

  3828. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  3829.             add_cppflags -isysroot "$sysroot"

  3830.             add_ldflags -isysroot "$sysroot"

  3831.         ;;

  3832.         tms470)

  3833.             add_cppflags -I"$sysinclude"

  3834.             add_ldflags  --sysroot="$sysroot"

  3835.         ;;

  3836.     esac

  3837. fi

  3838. 

  3839. if test "$cpu" = host; then

  3840.     enabled cross_compile &&

  3841.         die "--cpu=host makes no sense when cross-compiling."

  3842. 

  3843.     case "$cc_type" in

  3844.         gcc|llvm_gcc)

  3845.             check_native(){

  3846.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  3847.                 sed -n "/cc1.*$1=/{

  3848.                             s/.*$1=\\([^ ]*\\).*/\\1/

  3849.                             p

  3850.                             q

  3851.                         }" $TMPE

  3852.             }

  3853.             cpu=$(check_native -march || check_native -mcpu)

  3854.         ;;

  3855.     esac

  3856. 

  3857.     test "${cpu:-host}" = host &&

  3858.         die "--cpu=host not supported with compiler $cc"

  3859. fi

  3860. 

  3861. # Deal with common $arch aliases

  3862. case "$arch" in

  3863.     aarch64|arm64)

  3864.         arch="aarch64"

  3865.     ;;

  3866.     arm*|iPad*|iPhone*)

  3867.         arch="arm"

  3868.     ;;

  3869.     mips*|IP*)

  3870.         arch="mips"

  3871.     ;;

  3872.     parisc*|hppa*)

  3873.         arch="parisc"

  3874.     ;;

  3875.     "Power Macintosh"|ppc*|powerpc*)

  3876.         arch="ppc"

  3877.     ;;

  3878.     s390|s390x)

  3879.         arch="s390"

  3880.     ;;

  3881.     sh4|sh)

  3882.         arch="sh4"

  3883.     ;;

  3884.     sun4u|sparc*)

  3885.         arch="sparc"

  3886.     ;;

  3887.     tilegx|tile-gx)

  3888.         arch="tilegx"

  3889.     ;;

  3890.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  3891.         arch="x86"

  3892.     ;;

  3893. esac

  3894. 

  3895. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  3896. enable $arch

  3897. 

  3898. # Add processor-specific flags

  3899. if enabled aarch64; then

  3900. 

  3901.     case $cpu in

  3902.         armv*)

  3903.             cpuflags="-march=$cpu"

  3904.         ;;

  3905.         *)

  3906.             cpuflags="-mcpu=$cpu"

  3907.         ;;

  3908.     esac

  3909. 

  3910. elif enabled alpha; then

  3911. 

  3912.     cpuflags="-mcpu=$cpu"

  3913. 

  3914. elif enabled arm; then

  3915. 

  3916.     check_arm_arch() {

  3917.         check_cpp_condition stddef.h \

  3918.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  3919.             $cpuflags

  3920.     }

  3921. 

  3922.     probe_arm_arch() {

  3923.         if   check_arm_arch 4;        then echo armv4;

  3924.         elif check_arm_arch 4T;       then echo armv4t;

  3925.         elif check_arm_arch 5;        then echo armv5;

  3926.         elif check_arm_arch 5E;       then echo armv5e;

  3927.         elif check_arm_arch 5T;       then echo armv5t;

  3928.         elif check_arm_arch 5TE;      then echo armv5te;

  3929.         elif check_arm_arch 5TEJ;     then echo armv5te;

  3930.         elif check_arm_arch 6;        then echo armv6;

  3931.         elif check_arm_arch 6J;       then echo armv6j;

  3932.         elif check_arm_arch 6K;       then echo armv6k;

  3933.         elif check_arm_arch 6Z;       then echo armv6z;

  3934.         elif check_arm_arch 6ZK;      then echo armv6zk;

  3935.         elif check_arm_arch 6T2;      then echo armv6t2;

  3936.         elif check_arm_arch 7;        then echo armv7;

  3937.         elif check_arm_arch 7A  7_A;  then echo armv7-a;

  3938.         elif check_arm_arch 7S;       then echo armv7-a;

  3939.         elif check_arm_arch 7R  7_R;  then echo armv7-r;

  3940.         elif check_arm_arch 7M  7_M;  then echo armv7-m;

  3941.         elif check_arm_arch 7EM 7E_M; then echo armv7-m;

  3942.         elif check_arm_arch 8A  8_A;  then echo armv8-a;

  3943.         fi

  3944.     }

  3945. 

  3946.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  3947. 

  3948.     case $cpu in

  3949.         armv*)

  3950.             cpuflags="-march=$cpu"

  3951.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  3952.         ;;

  3953.         *)

  3954.             cpuflags="-mcpu=$cpu"

  3955.             case $cpu in

  3956.                 cortex-a*)                               subarch=armv7a  ;;

  3957.                 cortex-r*)                               subarch=armv7r  ;;

  3958.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  3959.                 arm11*)                                  subarch=armv6   ;;

  3960.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  3961.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  3962.                 *)                             subarch=$(probe_arm_arch) ;;

  3963.             esac

  3964.         ;;

  3965.     esac

  3966. 

  3967.     case "$subarch" in

  3968.         armv5t*)    enable fast_clz                ;;

  3969.         armv[6-8]*)

  3970.             enable fast_clz

  3971.             disabled fast_unaligned || enable fast_unaligned

  3972.             ;;

  3973.     esac

  3974. 

  3975. elif enabled avr32; then

  3976. 

  3977.     case $cpu in

  3978.         ap7[02]0[0-2])

  3979.             subarch="avr32_ap"

  3980.             cpuflags="-mpart=$cpu"

  3981.         ;;

  3982.         ap)

  3983.             subarch="avr32_ap"

  3984.             cpuflags="-march=$cpu"

  3985.         ;;

  3986.         uc3[ab]*)

  3987.             subarch="avr32_uc"

  3988.             cpuflags="-mcpu=$cpu"

  3989.         ;;

  3990.         uc)

  3991.             subarch="avr32_uc"

  3992.             cpuflags="-march=$cpu"

  3993.         ;;

  3994.     esac

  3995. 

  3996. elif enabled bfin; then

  3997. 

  3998.     cpuflags="-mcpu=$cpu"

  3999. 

  4000. elif enabled mips; then

  4001. 

  4002.     cpuflags="-march=$cpu"

  4003. 

  4004.     case $cpu in

  4005.         24kc)

  4006.             disable mips32r5

  4007.             disable mips64r6

  4008.             disable mipsfpu

  4009.             disable mipsdspr1

  4010.             disable mipsdspr2

  4011.             disable msa

  4012.         ;;

  4013.         24kf*)

  4014.             disable mips32r5

  4015.             disable mips64r6

  4016.             disable mipsdspr1

  4017.             disable mipsdspr2

  4018.             disable msa

  4019.         ;;

  4020.         24kec|34kc|1004kc)

  4021.             disable mips32r5

  4022.             disable mips64r6

  4023.             disable mipsfpu

  4024.             disable mipsdspr2

  4025.             disable msa

  4026.         ;;

  4027.         24kef*|34kf*|1004kf*)

  4028.             disable mips32r5

  4029.             disable mips64r6

  4030.             disable mipsdspr2

  4031.             disable msa

  4032.         ;;

  4033.         74kc)

  4034.             disable mips32r5

  4035.             disable mips64r6

  4036.             disable mipsfpu

  4037.             disable msa

  4038.         ;;

  4039.         74kf)

  4040.             disable mips32r5

  4041.             disable mips64r6

  4042.             disable msa

  4043.         ;;

  4044.         p5600)

  4045.             disable mips64r6

  4046.             disable mipsdspr1

  4047.             disable mipsdspr2

  4048. 

  4049.             check_cflags "-mtune=p5600"

  4050.         ;;

  4051.         i6400)

  4052.             disable mips32r5

  4053.             disable mipsdspr1

  4054.             disable mipsdspr2

  4055.             disable mipsfpu

  4056. 

  4057.             check_cflags "-mtune=i6400 -mabi=64"

  4058.             check_ldflags "-mabi=64"

  4059.         ;;

  4060.         loongson*)

  4061.             disable mipsfpu

  4062.             disable mips32r2

  4063.             disable mips32r5

  4064.             disable mips64r6

  4065.             disable mipsdspr1

  4066.             disable mipsdspr2

  4067.             disable msa

  4068.             enable local_aligned_8 local_aligned_16 local_aligned_32

  4069.             enable simd_align_16

  4070.             enable fast_64bit

  4071.             enable fast_clz

  4072.             enable fast_cmov

  4073.             enable fast_unaligned

  4074.             disable aligned_stack

  4075.             case $cpu in

  4076.                 loongson3*)

  4077.                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4078.                 ;;

  4079.                 loongson2e)

  4080.                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4081.                 ;;

  4082.                 loongson2f)

  4083.                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4084.                 ;;

  4085.             esac

  4086.         ;;

  4087.         generic)

  4088.             disable mips32r5

  4089.             disable mips64r6

  4090.             disable msa

  4091.         ;;

  4092.     esac

  4093. 

  4094. elif enabled ppc; then

  4095. 

  4096.     disable ldbrx

  4097. 

  4098.     case $(tolower $cpu) in

  4099.         601|ppc601|powerpc601)

  4100.             cpuflags="-mcpu=601"

  4101.             disable altivec

  4102.         ;;

  4103.         603*|ppc603*|powerpc603*)

  4104.             cpuflags="-mcpu=603"

  4105.             disable altivec

  4106.         ;;

  4107.         604*|ppc604*|powerpc604*)

  4108.             cpuflags="-mcpu=604"

  4109.             disable altivec

  4110.         ;;

  4111.         g3|75*|ppc75*|powerpc75*)

  4112.             cpuflags="-mcpu=750"

  4113.             disable altivec

  4114.         ;;

  4115.         g4|745*|ppc745*|powerpc745*)

  4116.             cpuflags="-mcpu=7450"

  4117.             disable vsx

  4118.         ;;

  4119.         74*|ppc74*|powerpc74*)

  4120.             cpuflags="-mcpu=7400"

  4121.             disable vsx

  4122.         ;;

  4123.         g5|970|ppc970|powerpc970)

  4124.             cpuflags="-mcpu=970"

  4125.             disable vsx

  4126.         ;;

  4127.         power[3-6]*)

  4128.             cpuflags="-mcpu=$cpu"

  4129.             disable vsx

  4130.         ;;

  4131.         power[7-8]*)

  4132.             cpuflags="-mcpu=$cpu"

  4133.         ;;

  4134.         cell)

  4135.             cpuflags="-mcpu=cell"

  4136.             enable ldbrx

  4137.             disable vsx

  4138.         ;;

  4139.         e500mc)

  4140.             cpuflags="-mcpu=e500mc"

  4141.             disable altivec

  4142.         ;;

  4143.         e500v2)

  4144.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4145.             disable altivec

  4146.             disable dcbzl

  4147.         ;;

  4148.         e500)

  4149.             cpuflags="-mcpu=8540 -mhard-float"

  4150.             disable altivec

  4151.             disable dcbzl

  4152.         ;;

  4153.     esac

  4154. 

  4155. elif enabled sparc; then

  4156. 

  4157.     case $cpu in

  4158.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4159.             cpuflags="-mcpu=$cpu"

  4160.         ;;

  4161.         ultrasparc*|niagara[234])

  4162.             cpuflags="-mcpu=$cpu"

  4163.         ;;

  4164.     esac

  4165. 

  4166. elif enabled x86; then

  4167. 

  4168.     case $cpu in

  4169.         i[345]86|pentium)

  4170.             cpuflags="-march=$cpu"

  4171.             disable i686

  4172.             disable mmx

  4173.         ;;

  4174.         # targets that do NOT support nopl and conditional mov (cmov)

  4175.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4176.             cpuflags="-march=$cpu"

  4177.             disable i686

  4178.         ;;

  4179.         # targets that do support nopl and conditional mov (cmov)

  4180.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4181.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)

  4182.             cpuflags="-march=$cpu"

  4183.             enable i686

  4184.             enable fast_cmov

  4185.         ;;

  4186.         # targets that do support conditional mov but on which it's slow

  4187.         pentium4|pentium4m|prescott|nocona)

  4188.             cpuflags="-march=$cpu"

  4189.             enable i686

  4190.             disable fast_cmov

  4191.         ;;

  4192.     esac

  4193. 

  4194. fi

  4195. 

  4196. if [ "$cpu" != generic ]; then

  4197.     add_cflags  $cpuflags

  4198.     add_asflags $cpuflags

  4199. fi

  4200. 

  4201. # compiler sanity check

  4202. check_exec <<EOF

  4203. int main(void){ return 0; }

  4204. EOF

  4205. if test "$?" != 0; then

  4206.     echo "$cc is unable to create an executable file."

  4207.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4208.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4209.         echo "Only do this if you know what cross compiling means."

  4210.     fi

  4211.     die "C compiler test failed."

  4212. fi

  4213. 

  4214. add_cppflags -D_ISOC99_SOURCE

  4215. add_cxxflags -D__STDC_CONSTANT_MACROS

  4216. check_cflags -std=c99

  4217. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4218. #include <stdlib.h>

  4219. EOF

  4220. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4221. #include <stdlib.h>

  4222. EOF

  4223. 

  4224. add_host_cppflags -D_ISOC99_SOURCE

  4225. check_host_cflags -std=c99

  4226. check_host_cflags -Wall

  4227. check_host_cflags -O3

  4228. 

  4229. check_64bit(){

  4230.     arch32=$1

  4231.     arch64=$2

  4232.     expr=$3

  4233.     check_code cc "" "int test[2*($expr) - 1]" &&

  4234.         subarch=$arch64 || subarch=$arch32

  4235. }

  4236. 

  4237. case "$arch" in

  4238.     aarch64|alpha|ia64)

  4239.         spic=$shared

  4240.     ;;

  4241.     mips)

  4242.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4243.         spic=$shared

  4244.     ;;

  4245.     parisc)

  4246.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4247.         spic=$shared

  4248.     ;;

  4249.     ppc)

  4250.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4251.         spic=$shared

  4252.     ;;

  4253.     s390)

  4254.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4255.         spic=$shared

  4256.     ;;

  4257.     sparc)

  4258.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4259.         spic=$shared

  4260.     ;;

  4261.     x86)

  4262.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4263.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4264.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4265.             subarch=x86_64

  4266.         if test "$subarch" = "x86_64"; then

  4267.             spic=$shared

  4268.         fi

  4269.     ;;

  4270.     ppc)

  4271.         check_cc <<EOF && subarch="ppc64"

  4272.         int test[(int)sizeof(char*) - 7];

  4273. EOF

  4274.     ;;

  4275. esac

  4276. 

  4277. enable $subarch

  4278. enabled spic && enable_weak pic

  4279. 

  4280. # OS specific

  4281. case $target_os in

  4282.     aix)

  4283.         SHFLAGS=-shared

  4284.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4285.         enabled shared && add_ldflags -Wl,-brtl

  4286.         ;;

  4287.     android)

  4288.         disable symver

  4289.         enable section_data_rel_ro

  4290.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4291.         SLIB_INSTALL_LINKS=

  4292.         # soname not set on purpose

  4293.         SHFLAGS=-shared

  4294.         ;;

  4295.     haiku)

  4296.         prefix_default="/boot/common"

  4297.         network_extralibs="-lnetwork"

  4298.         host_libs=

  4299.         ;;

  4300.     sunos)

  4301.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4302.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4303.         network_extralibs="-lsocket -lnsl"

  4304.         add_cppflags -D__EXTENSIONS__

  4305.         # When using suncc to build, the Solaris linker will mark

  4306.         # an executable with each instruction set encountered by

  4307.         # the Solaris assembler.  As our libraries contain their own

  4308.         # guards for processor-specific code, instead suppress

  4309.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4310.         enabled_all suncc x86 &&

  4311.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4312.             add_ldflags -Wl,-M,mapfile

  4313.         nm_default='nm -P -g'

  4314.         ;;

  4315.     netbsd)

  4316.         disable symver

  4317.         oss_indev_extralibs="-lossaudio"

  4318.         oss_outdev_extralibs="-lossaudio"

  4319.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4320.         ;;

  4321.     openbsd|bitrig)

  4322.         disable symver

  4323.         SHFLAGS='-shared'

  4324.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4325.         SLIB_INSTALL_LINKS=

  4326.         oss_indev_extralibs="-lossaudio"

  4327.         oss_outdev_extralibs="-lossaudio"

  4328.         ;;

  4329.     dragonfly)

  4330.         disable symver

  4331.         ;;

  4332.     freebsd)

  4333.         ;;

  4334.     bsd/os)

  4335.         add_extralibs -lpoll -lgnugetopt

  4336.         strip="strip -d"

  4337.         ;;

  4338.     darwin)

  4339.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4340.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4341.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4342.         strip="${strip} -x"

  4343.         add_ldflags -Wl,-dynamic,-search_paths_first

  4344.         SLIBSUF=".dylib"

  4345.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4346.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4347.         objformat="macho"

  4348.         enabled x86_64 && objformat="macho64"

  4349.         enabled_any pic shared x86_64 ||

  4350.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4351.         ;;

  4352.     mingw32*|mingw64*)

  4353.         if test $target_os = "mingw32ce"; then

  4354.             disable network

  4355.         else

  4356.             target_os=mingw32

  4357.         fi

  4358.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4359.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4360.         LIBTARGET=i386

  4361.         if enabled x86_64; then

  4362.             LIBTARGET="i386:x86-64"

  4363.         elif enabled arm; then

  4364.             LIBTARGET=arm-wince

  4365.         fi

  4366.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4367.         check_ldflags -Wl,--nxcompat

  4368.         check_ldflags -Wl,--dynamicbase

  4369.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4370.         shlibdir_default="$bindir_default"

  4371.         SLIBPREF=""

  4372.         SLIBSUF=".dll"

  4373.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4374.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4375.         dlltool="${cross_prefix}dlltool"

  4376.         if check_cmd lib.exe -list; then

  4377.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4378.             if enabled x86_64; then

  4379.                 LIBTARGET=x64

  4380.             fi

  4381.         elif check_cmd $dlltool --version; then

  4382.             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)'

  4383.         fi

  4384.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4385.         SLIB_INSTALL_LINKS=

  4386.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4387.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4388.         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'

  4389.         objformat="win32"

  4390.         ranlib=:

  4391.         enable dos_paths

  4392.         ;;

  4393.     win32|win64)

  4394.         disable symver

  4395.         if enabled shared; then

  4396.             # Link to the import library instead of the normal static library

  4397.             # for shared libs.

  4398.             LD_LIB='%.lib'

  4399.             # Cannot build both shared and static libs with MSVC or icl.

  4400.             disable static

  4401.         fi

  4402.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4403.         shlibdir_default="$bindir_default"

  4404.         SLIBPREF=""

  4405.         SLIBSUF=".dll"

  4406.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4407.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4408.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4409.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4410.         SLIB_INSTALL_LINKS=

  4411.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4412.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4413.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4414.         objformat="win32"

  4415.         ranlib=:

  4416.         enable dos_paths

  4417.         ;;

  4418.     cygwin*)

  4419.         target_os=cygwin

  4420.         shlibdir_default="$bindir_default"

  4421.         SLIBPREF="cyg"

  4422.         SLIBSUF=".dll"

  4423.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4424.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4425.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4426.         SLIB_INSTALL_LINKS=

  4427.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4428.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4429.         objformat="win32"

  4430.         enable dos_paths

  4431.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4432.         ;;

  4433.     *-dos|freedos|opendos)

  4434.         network_extralibs="-lsocket"

  4435.         objformat="coff"

  4436.         enable dos_paths

  4437.         add_cppflags -U__STRICT_ANSI__

  4438.         ;;

  4439.     linux)

  4440.         enable dv1394

  4441.         enable section_data_rel_ro

  4442.         ;;

  4443.     irix*)

  4444.         target_os=irix

  4445.         ranlib="echo ignoring ranlib"

  4446.         ;;

  4447.     os/2*)

  4448.         strip="lxlite -CS"

  4449.         ln_s="cp -f"

  4450.         objformat="aout"

  4451.         add_cppflags -D_GNU_SOURCE

  4452.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4453.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4454.         LIBSUF="_s.a"

  4455.         SLIBPREF=""

  4456.         SLIBSUF=".dll"

  4457.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'

  4458.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4459.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \

  4460.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \

  4461.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \

  4462.             echo EXPORTS >> $(SUBDIR)$(NAME).def; \

  4463.             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'

  4464.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \

  4465.             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'

  4466.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'

  4467.         enable dos_paths

  4468.         enable_weak os2threads

  4469.         ;;

  4470.     gnu/kfreebsd)

  4471.         add_cppflags -D_BSD_SOURCE

  4472.         ;;

  4473.     gnu)

  4474.         ;;

  4475.     qnx)

  4476.         add_cppflags -D_QNX_SOURCE

  4477.         network_extralibs="-lsocket"

  4478.         ;;

  4479.     symbian)

  4480.         SLIBSUF=".dll"

  4481.         enable dos_paths

  4482.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4483.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4484.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4485.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4486.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4487.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4488.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4489.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4490.         ;;

  4491.     osf1)

  4492.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4493.         ;;

  4494.     minix)

  4495.         ;;

  4496.     plan9)

  4497.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4498.                      -D_REENTRANT_SOURCE        \

  4499.                      -D_RESEARCH_SOURCE         \

  4500.                      -DFD_SETSIZE=96            \

  4501.                      -DHAVE_SOCK_OPTS

  4502.         add_compat strtod.o strtod=avpriv_strtod

  4503.         network_extralibs='-lbsd'

  4504.         exeobjs=compat/plan9/main.o

  4505.         disable ffserver

  4506.         cp_f='cp'

  4507.         ;;

  4508.     none)

  4509.         ;;

  4510.     *)

  4511.         die "Unknown OS '$target_os'."

  4512.         ;;

  4513. esac

  4514. 

  4515. # determine libc flavour

  4516. 

  4517. probe_libc(){

  4518.     pfx=$1

  4519.     pfx_no_=${pfx%_}

  4520.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4521.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4522.         eval ${pfx}libc_type=uclibc

  4523.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4524.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4525.         eval ${pfx}libc_type=glibc

  4526.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4527.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4528.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4529.         eval ${pfx}libc_type=newlib

  4530.         add_${pfx}cppflags -U__STRICT_ANSI__

  4531.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4532.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4533.         eval ${pfx}libc_type=mingw64

  4534.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4535.             add_compat msvcrt/snprintf.o

  4536.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4537.         fi

  4538.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4539.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4540.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4541.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4542.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4543.         eval ${pfx}libc_type=mingw32

  4544.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4545.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4546.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4547.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4548.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4549.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4550.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4551.         eval ${pfx}libc_type=msvcrt

  4552.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4553.             if [ "$pfx" = host_ ]; then

  4554.                 add_host_cppflags -Dsnprintf=_snprintf

  4555.             else

  4556.                 add_compat strtod.o strtod=avpriv_strtod

  4557.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4558.                                              _snprintf=avpriv_snprintf  \

  4559.                                              vsnprintf=avpriv_vsnprintf

  4560.             fi

  4561.         fi

  4562.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4563.         # 0x601 by default unless something else is set by the user.

  4564.         # This can easily lead to us detecting functions only present

  4565.         # in such new versions and producing binaries requiring windows 7.0.

  4566.         # Therefore explicitly set the default to XP unless the user has

  4567.         # set something else on the command line.

  4568.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4569.         # family. For these cases, configure is free to use any functions

  4570.         # found in the SDK headers by default. (Alternatively, we could force

  4571.         # _WIN32_WINNT to 0x0602 in that case.)

  4572.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4573.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4574. #ifdef WINAPI_FAMILY

  4575. #include <winapifamily.h>

  4576. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4577. #error not desktop

  4578. #endif

  4579. #endif

  4580. EOF

  4581.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4582.         eval ${pfx}libc_type=klibc

  4583.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4584.         eval ${pfx}libc_type=bionic

  4585.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4586.         eval ${pfx}libc_type=solaris

  4587.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4588.     fi

  4589.     check_${pfx}cc <<EOF

  4590. #include <time.h>

  4591. void *v = localtime_r;

  4592. EOF

  4593. 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

  4594. #include <time.h>

  4595. void *v = localtime_r;

  4596. EOF

  4597. 

  4598. }

  4599. 

  4600. probe_libc

  4601. test -n "$libc_type" && enable libc_$libc_type

  4602. probe_libc host_

  4603. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  4604. 

  4605. case $libc_type in

  4606.     bionic)

  4607.         add_compat strtod.o strtod=avpriv_strtod

  4608.         ;;

  4609. esac

  4610. 

  4611. # hacks for compiler/libc/os combinations

  4612. 

  4613. if enabled_all tms470 libc_glibc; then

  4614.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  4615.     add_cppflags -D__USER_LABEL_PREFIX__=

  4616.     add_cppflags -D__builtin_memset=memset

  4617.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  4618.     add_cflags   -pds=48    # incompatible redefinition of macro

  4619. fi

  4620. 

  4621. if enabled_all ccc libc_glibc; then

  4622.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  4623. fi

  4624. 

  4625. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  4626.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  4627. 

  4628. esc(){

  4629.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  4630. }

  4631. 

  4632. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  4633. 

  4634. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  4635. 

  4636. set_default libdir

  4637. : ${shlibdir_default:="$libdir"}

  4638. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  4639. 

  4640. set_default $PATHS_LIST

  4641. set_default nm

  4642. 

  4643. # we need to build at least one lib type

  4644. if ! enabled_any static shared; then

  4645.     cat <<EOF

  4646. At least one library type must be built.

  4647. Specify --enable-static to build the static libraries or --enable-shared to

  4648. build the shared libraries as well. To only build the shared libraries specify

  4649. --disable-static in addition to --enable-shared.

  4650. EOF

  4651.     exit 1;

  4652. fi

  4653. 

  4654. die_license_disabled() {

  4655.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  4656. }

  4657. 

  4658. die_license_disabled_gpl() {

  4659.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  4660. }

  4661. 

  4662. die_license_disabled gpl frei0r

  4663. die_license_disabled gpl libcdio

  4664. die_license_disabled gpl libsmbclient

  4665. die_license_disabled gpl libutvideo

  4666. die_license_disabled gpl libvidstab

  4667. die_license_disabled gpl libx264

  4668. die_license_disabled gpl libx265

  4669. die_license_disabled gpl libxavs

  4670. die_license_disabled gpl libxvid

  4671. die_license_disabled gpl libzvbi

  4672. die_license_disabled gpl x11grab

  4673. 

  4674. die_license_disabled nonfree libaacplus

  4675. die_license_disabled nonfree libfaac

  4676. die_license_disabled nonfree nvenc

  4677. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  4678. enabled gpl && die_license_disabled_gpl nonfree openssl

  4679. 

  4680. die_license_disabled version3 libopencore_amrnb

  4681. die_license_disabled version3 libopencore_amrwb

  4682. die_license_disabled version3 libsmbclient

  4683. die_license_disabled version3 libvo_aacenc

  4684. die_license_disabled version3 libvo_amrwbenc

  4685. 

  4686. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  4687. 

  4688. disabled optimizations || check_cflags -fomit-frame-pointer

  4689. 

  4690. enable_weak_pic() {

  4691.     disabled pic && return

  4692.     enable pic

  4693.     add_cppflags -DPIC

  4694.     case "$target_os" in

  4695.     mingw*|cygwin*)

  4696.         ;;

  4697.     *)

  4698.         add_cflags -fPIC

  4699.         ;;

  4700.     esac

  4701.     add_asflags  -fPIC

  4702. }

  4703. 

  4704. enabled pic && enable_weak_pic

  4705. 

  4706. check_cc <<EOF || die "Symbol mangling check failed."

  4707. int ff_extern;

  4708. EOF

  4709. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  4710. extern_prefix=${sym%%ff_extern*}

  4711. 

  4712. check_cc <<EOF && enable_weak inline_asm

  4713. void foo(void) { __asm__ volatile ("" ::); }

  4714. EOF

  4715. 

  4716. _restrict=

  4717. for restrict_keyword in restrict __restrict__ __restrict; do

  4718.     check_cc <<EOF && _restrict=$restrict_keyword && break

  4719. void foo(char * $restrict_keyword p);

  4720. EOF

  4721. done

  4722. 

  4723. check_cc <<EOF && enable pragma_deprecated

  4724. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  4725. EOF

  4726. 

  4727. check_cc <<EOF && enable attribute_packed

  4728. struct { int x; } __attribute__((packed)) x;

  4729. EOF

  4730. 

  4731. check_cc <<EOF && enable attribute_may_alias

  4732. union { int x; } __attribute__((may_alias)) x;

  4733. EOF

  4734. 

  4735. check_cc <<EOF || die "endian test failed"

  4736. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  4737. EOF

  4738. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  4739. 

  4740. if ! enabled ppc64 || enabled bigendian; then

  4741.     disable vsx

  4742. fi

  4743. 

  4744. check_gas() {

  4745.     log "check_gas using '$as' as AS"

  4746.     # :vararg is used on aarch64, arm and ppc altivec

  4747.     check_as <<EOF || return 1

  4748. .macro m n, y:vararg=0

  4749. \n: .int \y

  4750. .endm

  4751. m x

  4752. EOF

  4753.     # .altmacro is only used in arm asm

  4754.     ! enabled arm || check_as <<EOF || return 1

  4755. .altmacro

  4756. EOF

  4757.     enable gnu_as

  4758.     return 0

  4759. }

  4760. 

  4761. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  4762.     nogas=:

  4763.     enabled_any arm aarch64 && nogas=die

  4764.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  4765.     as_noop=-v

  4766. 

  4767.     case $as_type in

  4768.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  4769.         gcc)  gaspp_as_type=gas ;;

  4770.         *)    gaspp_as_type=$as_type ;;

  4771.     esac

  4772. 

  4773.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  4774. 

  4775.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  4776.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  4777.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  4778. 

  4779.     if ! check_gas ; then

  4780.         as=${gas:=$as}

  4781.         check_gas || \

  4782.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  4783.     fi

  4784. 

  4785.     check_as <<EOF && enable as_func

  4786. .func test

  4787. .endfunc

  4788. EOF

  4789. fi

  4790. 

  4791. check_inline_asm inline_asm_labels '"1:\n"'

  4792. 

  4793. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  4794. 

  4795. if enabled aarch64; then

  4796.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  4797.     # internal assembler in clang 3.3 does not support this instruction

  4798.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  4799.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  4800. 

  4801.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  4802. 

  4803. elif enabled alpha; then

  4804. 

  4805.     check_cflags -mieee

  4806. 

  4807. elif enabled arm; then

  4808. 

  4809.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  4810. 

  4811.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  4812. float func(float a, float b){ return a+b; }

  4813. EOF

  4814. 

  4815.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  4816. 

  4817.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  4818.         enable vfp_args

  4819.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  4820.         enable vfp_args

  4821.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  4822.         case "${cross_prefix:-$cc}" in

  4823.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  4824.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  4825. __asm__ (".eabi_attribute 28, 1");

  4826. int main(void) { return 0; }

  4827. EOF

  4828.         esac

  4829.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  4830.     fi

  4831. 

  4832.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  4833.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  4834.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  4835.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  4836.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  4837.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  4838.     enabled setend  && check_insn setend  'setend be'

  4839. 

  4840.     [ $target_os = linux ] || [ $target_os = android ] ||

  4841.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  4842.             $ARCH_EXT_LIST_ARM

  4843. 

  4844.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  4845. 

  4846.     check_as <<EOF && enable as_dn_directive

  4847. ra .dn d0.i16

  4848. .unreq ra

  4849. EOF

  4850. 

  4851.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  4852.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  4853. .object_arch armv4

  4854. EOF

  4855. 

  4856.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  4857. 

  4858. elif enabled mips; then

  4859. 

  4860.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  4861.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  4862.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  4863. 

  4864.     # Enable minimum ISA based on selected options

  4865.     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then

  4866.         add_cflags "-mips64r2"

  4867.         add_asflags "-mips64r2"

  4868.     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then

  4869.         add_cflags "-mips64"

  4870.         add_asflags "-mips64"

  4871.     elif enabled mipsdspr1 || enabled mipsdspr2; then

  4872.         add_cflags "-mips32r2 -mfp32"

  4873.         add_asflags "-mips32r2 -mfp32"

  4874.     elif enabled mips32r5 || enabled mips64r6; then

  4875.         check_cflags "-mfp64"

  4876.         check_ldflags "-mfp64"

  4877.     fi

  4878. 

  4879.     enabled mips32r5  && check_cflags "-mips32r5 -msched-weight -mload-store-pairs -funroll-loops" &&

  4880.      check_ldflags "-mips32r5" &&

  4881.      check_inline_asm mips32r5  '"ulw $t0, ($t1)"'

  4882.     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&

  4883.      check_ldflags "-mips64r6" &&

  4884.      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'

  4885.     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&

  4886.      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'

  4887.     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&

  4888.      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'

  4889.     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&

  4890.      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'

  4891.     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&

  4892.      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'

  4893. 

  4894.     enabled mips32r5 && add_asflags "-mips32r5 -mfp64"

  4895.     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"

  4896.     enabled msa && add_asflags "-mmsa"

  4897. 

  4898. elif enabled parisc; then

  4899. 

  4900.     if enabled gcc; then

  4901.         case $($cc -dumpversion) in

  4902.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  4903.         esac

  4904.     fi

  4905. 

  4906. elif enabled ppc; then

  4907. 

  4908.     enable local_aligned_8 local_aligned_16 local_aligned_32

  4909. 

  4910.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  4911.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  4912.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  4913.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  4914. 

  4915.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  4916.     if enabled altivec; then

  4917.         check_cflags -maltivec -mabi=altivec &&

  4918.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  4919.         check_cflags -faltivec

  4920. 

  4921.         # check if our compiler supports Motorola AltiVec C API

  4922.         check_cc <<EOF || disable altivec

  4923. $inc_altivec_h

  4924. int main(void) {

  4925.     vector signed int v1 = (vector signed int) { 0 };

  4926.     vector signed int v2 = (vector signed int) { 1 };

  4927.     v1 = vec_add(v1, v2);

  4928.     return 0;

  4929. }

  4930. EOF

  4931. 

  4932.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  4933.     fi

  4934. 

  4935.     if enabled vsx; then

  4936.         check_cflags -mvsx &&

  4937.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  4938.     fi

  4939. 

  4940.     if enabled power8; then

  4941.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  4942.     fi

  4943. 

  4944. elif enabled x86; then

  4945. 

  4946.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  4947.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  4948. 

  4949.     enable local_aligned_8 local_aligned_16 local_aligned_32

  4950. 

  4951.     # check whether EBP is available on x86

  4952.     # As 'i' is stored on the stack, this program will crash

  4953.     # if the base pointer is used to access it because the

  4954.     # base pointer is cleared in the inline assembly code.

  4955.     check_exec_crash <<EOF && enable ebp_available

  4956. volatile int i=0;

  4957. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  4958. return i;

  4959. EOF

  4960. 

  4961.     # check whether EBX is available on x86

  4962.     check_inline_asm ebx_available '""::"b"(0)' &&

  4963.         check_inline_asm ebx_available '"":::"%ebx"'

  4964. 

  4965.     # check whether xmm clobbers are supported

  4966.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  4967. 

  4968.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  4969.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  4970. 

  4971.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  4972.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  4973.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  4974. 

  4975.     if ! disabled_any asm mmx yasm; then

  4976.         if check_cmd $yasmexe --version; then

  4977.             enabled x86_64 && yasm_extra="-m amd64"

  4978.             yasm_debug="-g dwarf2"

  4979.         elif check_cmd nasm -v; then

  4980.             yasmexe=nasm

  4981.             yasm_debug="-g -F dwarf"

  4982.             if enabled x86_64; then

  4983.                 case "$objformat" in

  4984.                     elf)   objformat=elf64 ;;

  4985.                     win32) objformat=win64 ;;

  4986.                 esac

  4987.             fi

  4988.         fi

  4989. 

  4990.         YASMFLAGS="-f $objformat $yasm_extra"

  4991.         enabled pic               && append YASMFLAGS "-DPIC"

  4992.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  4993.         case "$objformat" in

  4994.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  4995.         esac

  4996. 

  4997.         check_yasm "movbe ecx, [5]" && enable yasm ||

  4998.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  4999.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5000.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5001.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5002.         check_yasm "CPU amdnop" || disable cpunop

  5003.     fi

  5004. 

  5005.     case "$cpu" in

  5006.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5007.             disable fast_clz

  5008.         ;;

  5009.     esac

  5010. 

  5011. fi

  5012. 

  5013. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5014. 

  5015. check_ldflags -Wl,--as-needed

  5016. check_ldflags -Wl,-z,noexecstack

  5017. 

  5018. if check_func dlopen; then

  5019.     ldl=

  5020. elif check_func dlopen -ldl; then

  5021.     ldl=-ldl

  5022. fi

  5023. 

  5024. frei0r_filter_extralibs='$ldl'

  5025. frei0r_src_filter_extralibs='$ldl'

  5026. ladspa_filter_extralibs='$ldl'

  5027. nvenc_encoder_extralibs='$ldl'

  5028. 

  5029. if ! disabled network; then

  5030.     check_func getaddrinfo $network_extralibs

  5031.     check_func getservbyport $network_extralibs

  5032.     check_func inet_aton $network_extralibs

  5033. 

  5034.     check_type netdb.h "struct addrinfo"

  5035.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5036.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5037.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5038.     check_type poll.h "struct pollfd"

  5039.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5040.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5041.     check_type netinet/in.h "struct sockaddr_in6"

  5042.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5043.     check_type "sys/types.h sys/socket.h" socklen_t

  5044. 

  5045.     # Prefer arpa/inet.h over winsock2

  5046.     if check_header arpa/inet.h ; then

  5047.         check_func closesocket

  5048.     elif check_header winsock2.h ; then

  5049.         check_func_headers winsock2.h closesocket -lws2 &&

  5050.             network_extralibs="-lws2" ||

  5051.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5052.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5053.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5054. 

  5055.         check_type ws2tcpip.h socklen_t

  5056.         check_type ws2tcpip.h "struct addrinfo"

  5057.         check_type ws2tcpip.h "struct group_source_req"

  5058.         check_type ws2tcpip.h "struct ip_mreq_source"

  5059.         check_type ws2tcpip.h "struct ipv6_mreq"

  5060.         check_type winsock2.h "struct pollfd"

  5061.         check_struct winsock2.h "struct sockaddr" sa_len

  5062.         check_type ws2tcpip.h "struct sockaddr_in6"

  5063.         check_type ws2tcpip.h "struct sockaddr_storage"

  5064.     else

  5065.         disable network

  5066.     fi

  5067. fi

  5068. 

  5069. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5070. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5071. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5072. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5073. check_builtin sarestart signal.h "SA_RESTART"

  5074. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5075. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5076. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5077. 

  5078. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5079. check_func  ${malloc_prefix}memalign            && enable memalign

  5080. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5081. 

  5082. check_func  access

  5083. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5084. check_func  fcntl

  5085. check_func  fork

  5086. check_func  gethrtime

  5087. check_func  getopt

  5088. check_func  getrusage

  5089. check_func  gettimeofday

  5090. check_func  isatty

  5091. check_func  mach_absolute_time

  5092. check_func  mkstemp

  5093. check_func  mmap

  5094. check_func  mprotect

  5095. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5096. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5097. check_func  sched_getaffinity

  5098. check_func  setrlimit

  5099. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5100. check_func  strerror_r

  5101. check_func  sysconf

  5102. check_func  sysctl

  5103. check_func  usleep

  5104. 

  5105. check_func_headers conio.h kbhit

  5106. check_func_headers io.h setmode

  5107. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5108. check_func_headers stdlib.h getenv

  5109. check_func_headers sys/stat.h lstat

  5110. 

  5111. check_func_headers windows.h CoTaskMemFree -lole32

  5112. check_func_headers windows.h GetProcessAffinityMask

  5113. check_func_headers windows.h GetProcessTimes

  5114. check_func_headers windows.h GetSystemTimeAsFileTime

  5115. check_func_headers windows.h MapViewOfFile

  5116. check_func_headers windows.h PeekNamedPipe

  5117. check_func_headers windows.h SetConsoleTextAttribute

  5118. check_func_headers windows.h SetConsoleCtrlHandler

  5119. check_func_headers windows.h Sleep

  5120. check_func_headers windows.h VirtualAlloc

  5121. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5122. check_func_headers glob.h glob

  5123. enabled xlib &&

  5124.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5125. 

  5126. check_header CoreServices/CoreServices.h

  5127. check_header direct.h

  5128. check_header dirent.h

  5129. check_header dlfcn.h

  5130. check_header d3d11.h

  5131. check_header dxva.h

  5132. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5133. check_header io.h

  5134. check_header libcrystalhd/libcrystalhd_if.h

  5135. check_header mach/mach_time.h

  5136. check_header malloc.h

  5137. check_header net/udplite.h

  5138. check_header poll.h

  5139. check_header sys/mman.h

  5140. check_header sys/param.h

  5141. check_header sys/resource.h

  5142. check_header sys/select.h

  5143. check_header sys/time.h

  5144. check_header sys/un.h

  5145. check_header termios.h

  5146. check_header unistd.h

  5147. check_header valgrind/valgrind.h

  5148. check_header vdpau/vdpau.h

  5149. check_header vdpau/vdpau_x11.h

  5150. check_header VideoDecodeAcceleration/VDADecoder.h

  5151. check_header VideoToolbox/VideoToolbox.h

  5152. check_header windows.h

  5153. check_header X11/extensions/XvMClib.h

  5154. check_header asm/types.h

  5155. 

  5156. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5157. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5158. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5159. 

  5160. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5161. 

  5162. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5163. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5164. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5165. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5166. 

  5167. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5168. 

  5169. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5170. 

  5171. if ! disabled w32threads && ! enabled pthreads; then

  5172.     check_func_headers "windows.h process.h" _beginthreadex &&

  5173.         enable w32threads || disable w32threads

  5174. fi

  5175. 

  5176. # check for some common methods of building with pthread support

  5177. # do this before the optional library checks as some of them require pthreads

  5178. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5179.     enable pthreads

  5180.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5181.         add_cflags -pthread

  5182.         add_extralibs -pthread

  5183.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5184.         add_cflags -pthreads

  5185.         add_extralibs -pthreads

  5186.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5187.         add_cflags -ldl -pthread

  5188.         add_extralibs -ldl -pthread

  5189.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5190.         add_extralibs -lpthreadGC2

  5191.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5192.         :

  5193.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5194.         disable pthreads

  5195.     fi

  5196.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5197. fi

  5198. 

  5199. 

  5200. if enabled pthreads; then

  5201.   check_func pthread_cancel

  5202. fi

  5203. 

  5204. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5205. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5206. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5207. 

  5208. check_lib math.h sin -lm && LIBM="-lm"

  5209. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5210. 

  5211. atan2f_args=2

  5212. copysign_args=2

  5213. ldexpf_args=2

  5214. powf_args=2

  5215. 

  5216. for func in $MATH_FUNCS; do

  5217.     eval check_mathfunc $func \${${func}_args:-1}

  5218. done

  5219. 

  5220. # these are off by default, so fail if requested and not available

  5221. enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5222. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5223.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5224. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5225.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5226.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5227. enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }

  5228. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5229. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5230. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5231. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5232. enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus

  5233. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5234. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5235. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5236. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5237.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5238.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5239. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5240. enabled libdcadec         && require_pkg_config dcadec libdcadec/dca_context.h dcadec_context_create &&

  5241.                              check_struct libdcadec/dca_context.h "struct dcadec_exss_info" matrix_encoding

  5242. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5243. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5244.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5245.                                  warn "using libfdk without pkg-config"; } }

  5246. 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"

  5247. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5248. enabled fontconfig        && enable libfontconfig

  5249. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5250. enabled libfreetype       && require_libfreetype

  5251. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5252. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5253. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5254.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5255.                                done || die "ERROR: libgsm not found"; }

  5256. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5257. enabled libkvazaar        && require_pkg_config kvazaar kvazaar.h kvz_api_get

  5258. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5259. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5260. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5261. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5262. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5263. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5264. enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader

  5265. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5266. enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||

  5267.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5268.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5269.                                die "ERROR: libopenjpeg not found"; }

  5270. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5271. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5272. enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init

  5273. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5274. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5275. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5276. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5277.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5278. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5279. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5280. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5281. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5282. enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h

  5283.     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h

  5284.     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static

  5285. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5286. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5287. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5288.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5289.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5290. enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++

  5291. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5292. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5293. enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc

  5294. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5295. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5296. 

  5297. enabled libvpx            && {

  5298.     enabled libvpx_vp8_decoder && {

  5299.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5300.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5301.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5302.     }

  5303.     enabled libvpx_vp8_encoder && {

  5304.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5305.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5306.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5307.     }

  5308.     enabled libvpx_vp9_decoder && {

  5309.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5310.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5311.                 disable libvpx_vp9_decoder;

  5312.     }

  5313.     enabled libvpx_vp9_encoder && {

  5314.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5315.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5316.                 disable libvpx_vp9_encoder;

  5317.     }

  5318.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5319.         die "libvpx enabled but no supported decoders found"

  5320.     fi

  5321. }

  5322. 

  5323. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5324. enabled libwebp           && {

  5325.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5326.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5327. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5328.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5329.                                  warn "using libx264 without pkg-config"; } } &&

  5330.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5331.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5332.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5333.                                enable libx262; }

  5334. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5335.                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||

  5336.                                die "ERROR: libx265 version must be >= 57."; }

  5337. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5338. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5339. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5340. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi

  5341. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5342.                                 { ! enabled cross_compile && {

  5343.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5344.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5345.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5346.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5347.                                die "ERROR: mmal not found"; }

  5348. enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&

  5349.                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||

  5350.                                die "ERROR: NVENC API version 4 or older is not supported"; } &&

  5351.                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }

  5352. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5353.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5354.                                die "ERROR: openal not found"; } &&

  5355.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5356.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5357. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5358.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5359.                                die "ERROR: opencl not found"; } &&

  5360.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5361.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5362.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5363. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5364.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5365.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5366.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5367.                                die "ERROR: opengl not found."

  5368.                              }

  5369. enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5370.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5371.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5372.                                die "ERROR: openssl not found"; }

  5373. enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }

  5374. 

  5375. if enabled gnutls; then

  5376.     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||

  5377.     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }

  5378. fi

  5379. 

  5380. # libdc1394 check

  5381. if enabled libdc1394; then

  5382.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5383.         enable libdc1394_2; } ||

  5384.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5385.         enable libdc1394_1; } ||

  5386.     die "ERROR: No version of libdc1394 found "

  5387. fi

  5388. if ! disabled sdl; then

  5389.     SDL_CONFIG="${cross_prefix}sdl-config"

  5390.     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then

  5391.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5392.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5393.         enable sdl

  5394.     else

  5395.         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then

  5396.             sdl_cflags=$("${SDL_CONFIG}" --cflags)

  5397.             sdl_libs=$("${SDL_CONFIG}" --libs)

  5398.             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&

  5399.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5400.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5401.             enable sdl

  5402.         elif enabled sdl ; then

  5403.             die "ERROR: SDL not found"

  5404.         else

  5405.             disable sdl

  5406.         fi

  5407.     fi

  5408.     if test $target_os = "mingw32"; then

  5409.         sdl_libs="$sdl_libs -mconsole"

  5410.     fi

  5411. fi

  5412. enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs

  5413. 

  5414. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5415.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5416.     enable securetransport; }

  5417. 

  5418. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5419. enabled makeinfo \

  5420.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5421.     && enable makeinfo_html || disable makeinfo_html

  5422. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5423. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5424. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5425. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5426. 

  5427. check_header linux/fb.h

  5428. check_header linux/videodev.h

  5429. check_header linux/videodev2.h

  5430. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5431. 

  5432. check_header sys/videoio.h

  5433. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5434. 

  5435. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5436. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5437. # w32api 3.12 had it defined wrong

  5438. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5439. 

  5440. check_type "dshow.h" IBaseFilter

  5441. 

  5442. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5443. { check_header dev/bktr/ioctl_meteor.h &&

  5444.   check_header dev/bktr/ioctl_bt848.h; } ||

  5445. { check_header machine/ioctl_meteor.h &&

  5446.   check_header machine/ioctl_bt848.h; } ||

  5447. { check_header dev/video/meteor/ioctl_meteor.h &&

  5448.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5449. check_header dev/ic/bt8xx.h

  5450. 

  5451. check_header sndio.h

  5452. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5453.     enable_safe sys/soundcard.h

  5454. else

  5455.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5456.     #include <sys/soundcard.h>

  5457.     audio_buf_info abc;

  5458. EOF

  5459. fi

  5460. check_header soundcard.h

  5461. 

  5462. enabled_any alsa_indev alsa_outdev &&

  5463.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5464. 

  5465. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&

  5466.     check_func jack_port_get_latency_range -ljack

  5467. 

  5468. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5469. 

  5470. if enabled libcdio; then

  5471.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5472.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5473.     die "ERROR: No usable libcdio/cdparanoia found"

  5474. fi

  5475. 

  5476. enabled xlib &&

  5477.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5478. 

  5479. if ! disabled libxcb; then

  5480.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5481.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5482.     } && disable x11grab && enable libxcb

  5483. 

  5484. if enabled libxcb; then

  5485.     disabled libxcb_shm || {

  5486.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5487.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5488.         } && check_header sys/shm.h && enable libxcb_shm; }

  5489. 

  5490.     disabled libxcb_xfixes || {

  5491.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5492.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5493.         } && enable libxcb_xfixes; }

  5494. 

  5495.     disabled libxcb_shape || {

  5496.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5497.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5498.         } && enable libxcb_shape; }

  5499. 

  5500.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5501.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5502. fi

  5503. fi

  5504. 

  5505. if enabled x11grab; then

  5506.     enabled xlib || die "ERROR: Xlib not found"

  5507.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5508.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5509. fi

  5510. 

  5511. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5512. 

  5513. enabled dxva2api_h &&

  5514.     check_cc <<EOF && enable dxva2api_cobj

  5515. #define _WIN32_WINNT 0x0600

  5516. #define COBJMACROS

  5517. #include <windows.h>

  5518. #include <d3d9.h>

  5519. #include <dxva2api.h>

  5520. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5521. EOF

  5522. 

  5523. enabled vaapi &&

  5524.     check_lib va/va.h vaInitialize -lva ||

  5525.     disable vaapi

  5526. 

  5527. enabled vaapi && enabled xlib &&

  5528.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  5529.     enable vaapi_x11

  5530. 

  5531. enabled vdpau &&

  5532.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  5533.     disable vdpau

  5534. 

  5535. enabled vdpau && enabled xlib &&

  5536.     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  5537.     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&

  5538.     enable vdpau_x11

  5539. 

  5540. # Funny iconv installations are not unusual, so check it after all flags have been set

  5541. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  5542. 

  5543. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  5544. 

  5545. # add some useful compiler flags if supported

  5546. check_cflags -Wdeclaration-after-statement

  5547. check_cflags -Wall

  5548. check_cflags -Wdisabled-optimization

  5549. check_cflags -Wpointer-arith

  5550. check_cflags -Wredundant-decls

  5551. check_cflags -Wwrite-strings

  5552. check_cflags -Wtype-limits

  5553. check_cflags -Wundef

  5554. check_cflags -Wmissing-prototypes

  5555. check_cflags -Wno-pointer-to-int-cast

  5556. check_cflags -Wstrict-prototypes

  5557. check_cflags -Wempty-body

  5558. enabled extra_warnings && check_cflags -Winline

  5559. 

  5560. check_disable_warning(){

  5561.     warning_flag=-W${1#-Wno-}

  5562.     test_cflags $warning_flag && add_cflags $1

  5563. }

  5564. 

  5565. check_disable_warning -Wno-parentheses

  5566. check_disable_warning -Wno-switch

  5567. check_disable_warning -Wno-format-zero-length

  5568. check_disable_warning -Wno-pointer-sign

  5569. 

  5570. # add some linker flags

  5571. check_ldflags -Wl,--warn-common

  5572. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  5573. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  5574. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  5575. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  5576. 

  5577. # add some strip flags

  5578. # -wN '..@*' is more selective than -x, but not available everywhere.

  5579. check_stripflags -wN \'..@*\' || check_stripflags -x

  5580. 

  5581. enabled neon_clobber_test &&

  5582.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5583.                   -Wl,--wrap,avcodec_decode_audio4      \

  5584.                   -Wl,--wrap,avcodec_decode_video2      \

  5585.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5586.                   -Wl,--wrap,avcodec_encode_audio2      \

  5587.                   -Wl,--wrap,avcodec_encode_video2      \

  5588.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5589.                   -Wl,--wrap,swr_convert                \

  5590.                   -Wl,--wrap,avresample_convert ||

  5591.     disable neon_clobber_test

  5592. 

  5593. enabled xmm_clobber_test &&

  5594.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5595.                   -Wl,--wrap,avcodec_decode_audio4      \

  5596.                   -Wl,--wrap,avcodec_decode_video2      \

  5597.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5598.                   -Wl,--wrap,avcodec_encode_audio2      \

  5599.                   -Wl,--wrap,avcodec_encode_video2      \

  5600.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5601.                   -Wl,--wrap,swr_convert                \

  5602.                   -Wl,--wrap,avresample_convert         \

  5603.                   -Wl,--wrap,sws_scale ||

  5604.     disable xmm_clobber_test

  5605. 

  5606. echo "X{};" > $TMPV

  5607. if test_ldflags -Wl,--version-script,$TMPV; then

  5608.     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'

  5609.     check_cc <<EOF && enable symver_asm_label

  5610. void ff_foo(void) __asm__ ("av_foo@VERSION");

  5611. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  5612. EOF

  5613.     check_cc <<EOF && enable symver_gnu_asm

  5614. __asm__(".symver ff_foo,av_foo@VERSION");

  5615. void ff_foo(void) {}

  5616. EOF

  5617. fi

  5618. 

  5619. if [ -z "$optflags" ]; then

  5620.     if enabled small; then

  5621.         optflags=$cflags_size

  5622.     elif enabled optimizations; then

  5623.         optflags=$cflags_speed

  5624.     else

  5625.         optflags=$cflags_noopt

  5626.     fi

  5627. fi

  5628. 

  5629. check_optflags(){

  5630.     check_cflags "$@"

  5631.     enabled lto && check_ldflags "$@"

  5632. }

  5633. 

  5634. 

  5635. if enabled lto; then

  5636.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  5637.     check_cflags  -flto

  5638.     check_ldflags -flto $cpuflags

  5639.     disable inline_asm_direct_symbol_refs

  5640. fi

  5641. 

  5642. check_optflags $optflags

  5643. check_optflags -fno-math-errno

  5644. check_optflags -fno-signed-zeros

  5645. 

  5646. enabled ftrapv && check_cflags -ftrapv

  5647. 

  5648. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  5649. int x;

  5650. EOF

  5651. 

  5652. 

  5653. if enabled icc; then

  5654.     # Just warnings, no remarks

  5655.     check_cflags -w1

  5656.     # -wd: Disable following warnings

  5657.     # 144, 167, 556: -Wno-pointer-sign

  5658.     # 188: enumerated type mixed with another type

  5659.     # 1292: attribute "foo" ignored

  5660.     # 1419: external declaration in primary source file

  5661.     # 10006: ignoring unknown option -fno-signed-zeros

  5662.     # 10148: ignoring unknown option -Wno-parentheses

  5663.     # 10156: ignoring option '-W'; no argument required

  5664.     # 13200: No EMMS instruction before call to function

  5665.     # 13203: No EMMS instruction before return from function

  5666.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  5667.     # 11030: Warning unknown option --as-needed

  5668.     # 10156: ignoring option '-export'; no argument required

  5669.     check_ldflags -wd10156,11030

  5670.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  5671.     enable ebp_available

  5672.     # The test above does not test linking

  5673.     enabled lto && disable symver_asm_label

  5674.     if enabled x86_32; then

  5675.         icc_version=$($cc -dumpversion)

  5676.         test ${icc_version%%.*} -ge 11 &&

  5677.             check_cflags -falign-stack=maintain-16-byte ||

  5678.             disable aligned_stack

  5679.     fi

  5680. elif enabled ccc; then

  5681.     # disable some annoying warnings

  5682.     add_cflags -msg_disable bitnotint

  5683.     add_cflags -msg_disable mixfuncvoid

  5684.     add_cflags -msg_disable nonstandcast

  5685.     add_cflags -msg_disable unsupieee

  5686. elif enabled gcc; then

  5687.     check_optflags -fno-tree-vectorize

  5688.     check_cflags -Werror=format-security

  5689.     check_cflags -Werror=implicit-function-declaration

  5690.     check_cflags -Werror=missing-prototypes

  5691.     check_cflags -Werror=return-type

  5692.     check_cflags -Werror=vla

  5693.     check_cflags -Wformat

  5694.     check_cflags -fdiagnostics-color=auto

  5695.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  5696. elif enabled llvm_gcc; then

  5697.     check_cflags -mllvm -stack-alignment=16

  5698. elif enabled clang; then

  5699.     check_cflags -mllvm -stack-alignment=16

  5700.     check_cflags -Qunused-arguments

  5701.     check_cflags -Werror=implicit-function-declaration

  5702.     check_cflags -Werror=missing-prototypes

  5703.     check_cflags -Werror=return-type

  5704. elif enabled cparser; then

  5705.     add_cflags -Wno-missing-variable-declarations

  5706.     add_cflags -Wno-empty-statement

  5707. elif enabled armcc; then

  5708.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  5709.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  5710.     # 2523: use of inline assembly is deprecated

  5711.     add_cflags -W${armcc_opt},--diag_suppress=2523

  5712.     add_cflags -W${armcc_opt},--diag_suppress=1207

  5713.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  5714.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  5715.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  5716.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  5717. elif enabled tms470; then

  5718.     add_cflags -pds=824 -pds=837

  5719.     disable inline_asm

  5720. elif enabled pathscale; then

  5721.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  5722. elif enabled_any msvc icl; then

  5723.     enabled x86_32 && disable aligned_stack

  5724.     enabled_all x86_32 debug && add_cflags -Oy-

  5725.     enabled debug && add_ldflags -debug

  5726.     enable pragma_deprecated

  5727.     if enabled icl; then

  5728.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  5729.         # (correctly) on icl 13.x.

  5730.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  5731.             add_cflags -Qansi-alias

  5732.         # Some inline asm is not compilable in debug

  5733.         if enabled debug; then

  5734.             disable ebp_available

  5735.             disable ebx_available

  5736.         fi

  5737.     fi

  5738.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  5739.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  5740.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  5741.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  5742.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  5743.     # MSVC 2013 and newer can handle it fine.

  5744.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  5745.     # happens in config.h.

  5746.     if [ $_restrict != restrict ]; then

  5747.         check_cc <<EOF || add_cflags -FIstdlib.h

  5748. __declspec($_restrict) void* foo(int);

  5749. EOF

  5750.     fi

  5751.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5752. fi

  5753. 

  5754. for pfx in "" host_; do

  5755.     varname=${pfx%_}cc_type

  5756.     eval "type=\$$varname"

  5757.     if [ $type = "msvc" ]; then

  5758.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  5759. static inline int foo(int a) { return a; }

  5760. EOF

  5761.     fi

  5762. done

  5763. 

  5764. case $as_type in

  5765.     clang)

  5766.         add_asflags -Qunused-arguments

  5767.     ;;

  5768. esac

  5769. 

  5770. case $ld_type in

  5771.     clang)

  5772.         check_ldflags -Qunused-arguments

  5773.     ;;

  5774. esac

  5775. 

  5776. case $target_os in

  5777.     osf1)

  5778.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  5779.     ;;

  5780.     plan9)

  5781.         add_cppflags -Dmain=plan9_main

  5782.     ;;

  5783. esac

  5784. 

  5785. enable frame_thread_encoder

  5786. 

  5787. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  5788. 

  5789. check_deps $CONFIG_LIST       \

  5790.            $CONFIG_EXTRA      \

  5791.            $HAVE_LIST         \

  5792.            $ALL_COMPONENTS    \

  5793. 

  5794. 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"

  5795. 

  5796. 

  5797. if test $target_os = "haiku"; then

  5798.     disable memalign

  5799.     disable posix_memalign

  5800. fi

  5801. 

  5802. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  5803.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  5804.     enable dxva2_lib

  5805. 

  5806. ! enabled_any memalign posix_memalign aligned_malloc &&

  5807.     enabled simd_align_16 && enable memalign_hack

  5808. 

  5809. # add_dep lib dep

  5810. # -> enable ${lib}_deps_${dep}

  5811. # -> add $dep to ${lib}_deps only once

  5812. add_dep() {

  5813.     lib=$1

  5814.     dep=$2

  5815.     enabled "${lib}_deps_${dep}" && return 0

  5816.     enable  "${lib}_deps_${dep}"

  5817.     prepend "${lib}_deps" $dep

  5818. }

  5819. 

  5820. # merge deps lib components

  5821. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  5822. merge_deps() {

  5823.     lib=$1

  5824.     shift

  5825.     for comp in $*; do

  5826.         enabled $comp || continue

  5827.         eval "dep=\"\$${comp}_deps\""

  5828.         for d in $dep; do

  5829.             add_dep $lib $d

  5830.         done

  5831.     done

  5832. }

  5833. 

  5834. merge_deps libavfilter $FILTER_LIST

  5835. 

  5836. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  5837. 

  5838. for thread in $THREADS_LIST; do

  5839.     if enabled $thread; then

  5840.         test -n "$thread_type" &&

  5841.             die "ERROR: Only one thread type must be selected." ||

  5842.             thread_type="$thread"

  5843.     fi

  5844. done

  5845. 

  5846. enabled zlib && add_cppflags -DZLIB_CONST

  5847. 

  5848. # conditional library dependencies, in linking order

  5849. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  5850. enabled aresample_filter    && prepend avfilter_deps "swresample"

  5851. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  5852. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  5853. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  5854. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  5855. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  5856. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  5857. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  5858. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  5859. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  5860. enabled pan_filter          && prepend avfilter_deps "swresample"

  5861. enabled pp_filter           && prepend avfilter_deps "postproc"

  5862. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  5863. enabled resample_filter && prepend avfilter_deps "avresample"

  5864. enabled sab_filter          && prepend avfilter_deps "swscale"

  5865. enabled scale_filter    && prepend avfilter_deps "swscale"

  5866. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  5867. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  5868. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  5869. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  5870. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  5871. 

  5872. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  5873. 

  5874. enabled opus_decoder    && prepend avcodec_deps "swresample"

  5875. 

  5876. expand_deps(){

  5877.     lib_deps=${1}_deps

  5878.     eval "deps=\$$lib_deps"

  5879.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  5880.     unique $lib_deps

  5881. }

  5882. 

  5883. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  5884. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  5885. 

  5886. map 'expand_deps $v' $LIBRARY_LIST

  5887. 

  5888. echo "install prefix            $prefix"

  5889. echo "source path               $source_path"

  5890. echo "C compiler                $cc"

  5891. echo "C library                 $libc_type"

  5892. if test "$host_cc" != "$cc"; then

  5893.     echo "host C compiler           $host_cc"

  5894.     echo "host C library            $host_libc_type"

  5895. fi

  5896. echo "ARCH                      $arch ($cpu)"

  5897. if test "$build_suffix" != ""; then

  5898.     echo "build suffix              $build_suffix"

  5899. fi

  5900. if test "$progs_suffix" != ""; then

  5901.     echo "progs suffix              $progs_suffix"

  5902. fi

  5903. if test "$extra_version" != ""; then

  5904.     echo "version string suffix     $extra_version"

  5905. fi

  5906. echo "big-endian                ${bigendian-no}"

  5907. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  5908. if enabled x86; then

  5909.     echo "${yasmexe}                      ${yasm-no}"

  5910.     echo "MMX enabled               ${mmx-no}"

  5911.     echo "MMXEXT enabled            ${mmxext-no}"

  5912.     echo "3DNow! enabled            ${amd3dnow-no}"

  5913.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  5914.     echo "SSE enabled               ${sse-no}"

  5915.     echo "SSSE3 enabled             ${ssse3-no}"

  5916.     echo "AVX enabled               ${avx-no}"

  5917.     echo "XOP enabled               ${xop-no}"

  5918.     echo "FMA3 enabled              ${fma3-no}"

  5919.     echo "FMA4 enabled              ${fma4-no}"

  5920.     echo "i686 features enabled     ${i686-no}"

  5921.     echo "CMOV is fast              ${fast_cmov-no}"

  5922.     echo "EBX available             ${ebx_available-no}"

  5923.     echo "EBP available             ${ebp_available-no}"

  5924. fi

  5925. if enabled aarch64; then

  5926.     echo "NEON enabled              ${neon-no}"

  5927.     echo "VFP enabled               ${vfp-no}"

  5928. fi

  5929. if enabled arm; then

  5930.     echo "ARMv5TE enabled           ${armv5te-no}"

  5931.     echo "ARMv6 enabled             ${armv6-no}"

  5932.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  5933.     echo "VFP enabled               ${vfp-no}"

  5934.     echo "NEON enabled              ${neon-no}"

  5935.     echo "THUMB enabled             ${thumb-no}"

  5936. fi

  5937. if enabled mips; then

  5938.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  5939.     echo "MIPS32R5 enabled          ${mips32r5-no}"

  5940.     echo "MIPS64R6 enabled          ${mips64r6-no}"

  5941.     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"

  5942.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  5943.     echo "MIPS MSA enabled          ${msa-no}"

  5944.     echo "LOONGSON MMI enabled      ${mmi-no}"

  5945. fi

  5946. if enabled ppc; then

  5947.     echo "AltiVec enabled           ${altivec-no}"

  5948.     echo "VSX enabled               ${vsx-no}"

  5949.     echo "POWER8 enabled            ${power8-no}"

  5950.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  5951.     echo "dcbzl available           ${dcbzl-no}"

  5952. fi

  5953. echo "debug symbols             ${debug-no}"

  5954. echo "strip symbols             ${stripping-no}"

  5955. echo "optimize for size         ${small-no}"

  5956. echo "optimizations             ${optimizations-no}"

  5957. echo "static                    ${static-no}"

  5958. echo "shared                    ${shared-no}"

  5959. echo "postprocessing support    ${postproc-no}"

  5960. echo "new filter support        ${avfilter-no}"

  5961. echo "network support           ${network-no}"

  5962. echo "threading support         ${thread_type-no}"

  5963. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  5964. echo "SDL support               ${sdl-no}"

  5965. echo "opencl enabled            ${opencl-no}"

  5966. echo "texi2html enabled         ${texi2html-no}"

  5967. echo "perl enabled              ${perl-no}"

  5968. echo "pod2man enabled           ${pod2man-no}"

  5969. echo "makeinfo enabled          ${makeinfo-no}"

  5970. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  5971. test -n "$random_seed" &&

  5972.     echo "random seed               ${random_seed}"

  5973. echo

  5974. 

  5975. echo "Enabled programs:"

  5976. print_enabled '' $PROGRAM_LIST | print_in_columns

  5977. echo

  5978. 

  5979. echo "External libraries:"

  5980. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  5981. echo

  5982. 

  5983. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  5984.     echo "Enabled ${type}s:"

  5985.     eval list=\$$(toupper $type)_LIST

  5986.     print_enabled '_*' $list | print_in_columns

  5987.     echo

  5988. done

  5989. 

  5990. license="LGPL version 2.1 or later"

  5991. if enabled nonfree; then

  5992.     license="nonfree and unredistributable"

  5993. elif enabled gplv3; then

  5994.     license="GPL version 3 or later"

  5995. elif enabled lgplv3; then

  5996.     license="LGPL version 3 or later"

  5997. elif enabled gpl; then

  5998.     license="GPL version 2 or later"

  5999. fi

  6000. 

  6001. echo "License: $license"

  6002. 

  6003. echo "Creating config.mak, config.h, and doc/config.texi..."

  6004. 

  6005. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6006. 

  6007. enabled stripping || strip="echo skipping strip"

  6008. 

  6009. config_files="$TMPH config.mak doc/config.texi"

  6010. 

  6011. cat > config.mak <<EOF

  6012. # Automatically generated by configure - do not modify!

  6013. ifndef FFMPEG_CONFIG_MAK

  6014. FFMPEG_CONFIG_MAK=1

  6015. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6016. prefix=$prefix

  6017. LIBDIR=\$(DESTDIR)$libdir

  6018. SHLIBDIR=\$(DESTDIR)$shlibdir

  6019. INCDIR=\$(DESTDIR)$incdir

  6020. BINDIR=\$(DESTDIR)$bindir

  6021. DATADIR=\$(DESTDIR)$datadir

  6022. DOCDIR=\$(DESTDIR)$docdir

  6023. MANDIR=\$(DESTDIR)$mandir

  6024. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6025. SRC_PATH=$source_path

  6026. ifndef MAIN_MAKEFILE

  6027. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6028. endif

  6029. CC_IDENT=$cc_ident

  6030. ARCH=$arch

  6031. INTRINSICS=$intrinsics

  6032. CC=$cc

  6033. CXX=$cxx

  6034. AS=$as

  6035. LD=$ld

  6036. DEPCC=$dep_cc

  6037. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6038. DEPAS=$as

  6039. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6040. YASM=$yasmexe

  6041. DEPYASM=$yasmexe

  6042. AR=$ar

  6043. ARFLAGS=$arflags

  6044. AR_O=$ar_o

  6045. RANLIB=$ranlib

  6046. STRIP=$strip

  6047. CP=cp -p

  6048. LN_S=$ln_s

  6049. CPPFLAGS=$CPPFLAGS

  6050. CFLAGS=$CFLAGS

  6051. CXXFLAGS=$CXXFLAGS

  6052. ASFLAGS=$ASFLAGS

  6053. AS_C=$AS_C

  6054. AS_O=$AS_O

  6055. CC_C=$CC_C

  6056. CC_E=$CC_E

  6057. CC_O=$CC_O

  6058. CXX_C=$CXX_C

  6059. CXX_O=$CXX_O

  6060. LD_O=$LD_O

  6061. LD_LIB=$LD_LIB

  6062. LD_PATH=$LD_PATH

  6063. DLLTOOL=$dlltool

  6064. WINDRES=$windres

  6065. DEPWINDRES=$dep_cc

  6066. DOXYGEN=$doxygen

  6067. LDFLAGS=$LDFLAGS

  6068. LDEXEFLAGS=$LDEXEFLAGS

  6069. LDLIBFLAGS=$LDLIBFLAGS

  6070. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6071. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6072. YASMFLAGS=$YASMFLAGS

  6073. BUILDSUF=$build_suffix

  6074. PROGSSUF=$progs_suffix

  6075. FULLNAME=$FULLNAME

  6076. LIBPREF=$LIBPREF

  6077. LIBSUF=$LIBSUF

  6078. LIBNAME=$LIBNAME

  6079. SLIBPREF=$SLIBPREF

  6080. SLIBSUF=$SLIBSUF

  6081. EXESUF=$EXESUF

  6082. EXTRA_VERSION=$extra_version

  6083. CCDEP=$CCDEP

  6084. CXXDEP=$CXXDEP

  6085. CCDEP_FLAGS=$CCDEP_FLAGS

  6086. ASDEP=$ASDEP

  6087. ASDEP_FLAGS=$ASDEP_FLAGS

  6088. CC_DEPFLAGS=$CC_DEPFLAGS

  6089. AS_DEPFLAGS=$AS_DEPFLAGS

  6090. HOSTCC=$host_cc

  6091. HOSTLD=$host_ld

  6092. HOSTCFLAGS=$host_cflags

  6093. HOSTCPPFLAGS=$host_cppflags

  6094. HOSTEXESUF=$HOSTEXESUF

  6095. HOSTLDFLAGS=$host_ldflags

  6096. HOSTLIBS=$host_libs

  6097. DEPHOSTCC=$host_cc

  6098. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6099. HOSTCCDEP=$HOSTCCDEP

  6100. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6101. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6102. HOSTCC_C=$HOSTCC_C

  6103. HOSTCC_O=$HOSTCC_O

  6104. HOSTLD_O=$HOSTLD_O

  6105. TARGET_EXEC=$target_exec $target_exec_args

  6106. TARGET_PATH=$target_path

  6107. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6108. CFLAGS-ffplay=$sdl_cflags

  6109. ZLIB=$($ldflags_filter -lz)

  6110. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6111. EXTRALIBS=$extralibs

  6112. COMPAT_OBJS=$compat_objs

  6113. EXEOBJS=$exeobjs

  6114. INSTALL=$install

  6115. LIBTARGET=${LIBTARGET}

  6116. SLIBNAME=${SLIBNAME}

  6117. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6118. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6119. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6120. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6121. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6122. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6123. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6124. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6125. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6126. NOREDZONE_FLAGS=$noredzone_flags

  6127. EOF

  6128. 

  6129. get_version(){

  6130.     lcname=lib${1}

  6131.     name=$(toupper $lcname)

  6132.     file=$source_path/$lcname/version.h

  6133.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6134.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6135.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6136.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6137.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6138.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6139. }

  6140. 

  6141. map 'get_version $v' $LIBRARY_LIST

  6142. 

  6143. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6144. 

  6145. print_program_libs(){

  6146.     eval "program_libs=\$${1}_libs"

  6147.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6148. }

  6149. 

  6150. map 'print_program_libs $v' $PROGRAM_LIST

  6151. 

  6152. cat > $TMPH <<EOF

  6153. /* Automatically generated by configure - do not modify! */

  6154. #ifndef FFMPEG_CONFIG_H

  6155. #define FFMPEG_CONFIG_H

  6156. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6157. #define FFMPEG_LICENSE "$(c_escape $license)"

  6158. #define CONFIG_THIS_YEAR 2015

  6159. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6160. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6161. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6162. #define av_restrict $_restrict

  6163. #define EXTERN_PREFIX "${extern_prefix}"

  6164. #define EXTERN_ASM ${extern_prefix}

  6165. #define BUILDSUF "$build_suffix"

  6166. #define SLIBSUF "$SLIBSUF"

  6167. #define HAVE_MMX2 HAVE_MMXEXT

  6168. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6169. EOF

  6170. 

  6171. test -n "$assert_level" &&

  6172.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6173. 

  6174. test -n "$malloc_prefix" &&

  6175.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6176. 

  6177. if enabled yasm; then

  6178.     append config_files $TMPASM

  6179.     printf '' >$TMPASM

  6180. fi

  6181. 

  6182. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6183. 

  6184. 

  6185. mkdir -p doc

  6186. mkdir -p tests

  6187. mkdir -p tests/api

  6188. echo "@c auto-generated by configure" > doc/config.texi

  6189. 

  6190. print_config ARCH_   "$config_files" $ARCH_LIST

  6191. print_config HAVE_   "$config_files" $HAVE_LIST

  6192. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6193.                                      $CONFIG_EXTRA      \

  6194.                                      $ALL_COMPONENTS    \

  6195. 

  6196. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6197. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6198. 

  6199. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6200. cp_if_changed $TMPH config.h

  6201. touch .config

  6202. 

  6203. enabled yasm && cp_if_changed $TMPASM config.asm

  6204. 

  6205. cat > $TMPH <<EOF

  6206. /* Generated by ffconf */

  6207. #ifndef AVUTIL_AVCONFIG_H

  6208. #define AVUTIL_AVCONFIG_H

  6209. EOF

  6210. 

  6211. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6212. 

  6213. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6214. 

  6215. cp_if_changed $TMPH libavutil/avconfig.h

  6216. 

  6217. if test -n "$WARNINGS"; then

  6218.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6219.     enabled fatal_warnings && exit 1

  6220. fi

  6221. 

  6222. # build pkg-config files

  6223. 

  6224. lib_version(){

  6225.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6226. }

  6227. 

  6228. pkgconfig_generate(){

  6229.     name=$1

  6230.     shortname=${name#lib}${build_suffix}

  6231.     comment=$2

  6232.     version=$3

  6233.     libs=$4

  6234.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6235.     requires=${requires%, }

  6236.     enabled ${name#lib} || return 0

  6237.     mkdir -p $name

  6238.     cat <<EOF > $name/$name${build_suffix}.pc

  6239. prefix=$prefix

  6240. exec_prefix=\${prefix}

  6241. libdir=$libdir

  6242. includedir=$incdir

  6243. 

  6244. Name: $name

  6245. Description: $comment

  6246. Version: $version

  6247. Requires: $(enabled shared || echo $requires)

  6248. Requires.private: $(enabled shared && echo $requires)

  6249. Conflicts:

  6250. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6251. Libs.private: $(enabled shared && echo $libs)

  6252. Cflags: -I\${includedir}

  6253. EOF

  6254. 

  6255. mkdir -p doc/examples/pc-uninstalled

  6256. includedir=${source_path}

  6257. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6258.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6259. prefix=

  6260. exec_prefix=

  6261. libdir=\${pcfiledir}/../../../$name

  6262. includedir=${includedir}

  6263. 

  6264. Name: $name

  6265. Description: $comment

  6266. Version: $version

  6267. Requires: $requires

  6268. Conflicts:

  6269. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6270. Cflags: -I\${includedir}

  6271. EOF

  6272. }

  6273. 

  6274. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6275. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6276. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6277. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6278. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6279. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6280. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6281. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6282. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"