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FFmpeg
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FFmpeg/configure

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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --list-decoders          show all available decoders

  67.   --list-encoders          show all available encoders

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

  69.   --list-demuxers          show all available demuxers

  70.   --list-muxers            show all available muxers

  71.   --list-parsers           show all available parsers

  72.   --list-protocols         show all available protocols

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

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

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

  76.   --list-filters           show all available filters

  77. 

  78. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  92.                            not part of the dynamic linker search path

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

  94. 

  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-libtheora       enable Theora encoding via libtheora [no]

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

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

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

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

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

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

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

  257.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  272.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

  277.   --enable-opencl          enable OpenCL code

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

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

  280.                            if gnutls is not used [no]

  281.   --disable-sdl            disable sdl [autodetect]

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

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

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

  285.   --disable-xlib           disable xlib [autodetect]

  286.   --disable-zlib           disable zlib [autodetect]

  287. 

  288. Toolchain options:

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

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

  291.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  336. 

  337. Advanced options (experts only):

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

  339.   --disable-symver         disable symbol versioning

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

  341.   --disable-safe-bitstream-reader

  342.                            disable buffer boundary checking in bitreaders

  343.                            (faster, but may crash)

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

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

  346. 

  347. Optimization options (experts only):

  348.   --disable-asm            disable all assembly optimizations

  349.   --disable-altivec        disable AltiVec optimizations

  350.   --disable-vsx            disable VSX optimizations

  351.   --disable-power8         disable POWER8 optimizations

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

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

  354.   --disable-mmx            disable MMX optimizations

  355.   --disable-mmxext         disable MMXEXT optimizations

  356.   --disable-sse            disable SSE optimizations

  357.   --disable-sse2           disable SSE2 optimizations

  358.   --disable-sse3           disable SSE3 optimizations

  359.   --disable-ssse3          disable SSSE3 optimizations

  360.   --disable-sse4           disable SSE4 optimizations

  361.   --disable-sse42          disable SSE4.2 optimizations

  362.   --disable-avx            disable AVX optimizations

  363.   --disable-xop            disable XOP optimizations

  364.   --disable-fma3           disable FMA3 optimizations

  365.   --disable-fma4           disable FMA4 optimizations

  366.   --disable-avx2           disable AVX2 optimizations

  367.   --disable-armv5te        disable armv5te optimizations

  368.   --disable-armv6          disable armv6 optimizations

  369.   --disable-armv6t2        disable armv6t2 optimizations

  370.   --disable-vfp            disable VFP optimizations

  371.   --disable-neon           disable NEON optimizations

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

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

  374.   --disable-mips32r5       disable MIPS32R5 optimizations

  375.   --disable-mips64r6       disable MIPS64R6 optimizations

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

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

  378.   --disable-msa            disable MSA optimizations

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

  380.   --disable-mmi            disable Loongson SIMD optimizations

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

  382. 

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

  384.   --disable-debug          disable debugging symbols

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

  386.   --disable-optimizations  disable compiler optimizations

  387.   --enable-extra-warnings  enable more compiler warnings

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

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

  390.                            2 causes a slowdown at runtime.

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

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

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

  394.                            Cannot be combined with --target-exec

  395.   --enable-ftrapv          Trap arithmetic overflows

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

  397.                            \$FATE_SAMPLES at make invocation time.

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

  399.                            used only for debugging purposes)

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

  401.                            should be used only for debugging purposes)

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

  403.   --disable-random

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

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

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

  407.                            (group) and PROB the probability associated with

  408.                            NAME (default 0.5).

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

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

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

  412. 

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

  414. EOF

  415.   exit 0

  416. }

  417. 

  418. quotes='""'

  419. 

  420. log(){

  421.     echo "$@" >> $logfile

  422. }

  423. 

  424. log_file(){

  425.     log BEGIN $1

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

  427.     log END $1

  428. }

  429. 

  430. echolog(){

  431.     log "$@"

  432.     echo "$@"

  433. }

  434. 

  435. warn(){

  436.     log "WARNING: $*"

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

  438. }

  439. 

  440. die(){

  441.     echolog "$@"

  442.     cat <<EOF

  443. 

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

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

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

  447. EOF

  448.     if disabled logging; then

  449.         cat <<EOF

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

  451. include the log this produces with your report.

  452. EOF

  453.     else

  454.         cat <<EOF

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

  456. solve the problem.

  457. EOF

  458.     fi

  459.     exit 1

  460. }

  461. 

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

  463. toupper(){

  464.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  465. }

  466. 

  467. tolower(){

  468.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  469. }

  470. 

  471. c_escape(){

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

  473. }

  474. 

  475. sh_quote(){

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

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

  478.     echo "$v"

  479. }

  480. 

  481. cleanws(){

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

  483. }

  484. 

  485. filter(){

  486.     pat=$1

  487.     shift

  488.     for v; do

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

  490.     done

  491. }

  492. 

  493. filter_out(){

  494.     pat=$1

  495.     shift

  496.     for v; do

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

  498.     done

  499. }

  500. 

  501. map(){

  502.     m=$1

  503.     shift

  504.     for v; do eval $m; done

  505. }

  506. 

  507. add_suffix(){

  508.     suffix=$1

  509.     shift

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

  511. }

  512. 

  513. set_all(){

  514.     value=$1

  515.     shift

  516.     for var in $*; do

  517.         eval $var=$value

  518.     done

  519. }

  520. 

  521. set_weak(){

  522.     value=$1

  523.     shift

  524.     for var; do

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

  526.     done

  527. }

  528. 

  529. sanitize_var_name(){

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

  531. }

  532. 

  533. set_safe(){

  534.     var=$1

  535.     shift

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

  537. }

  538. 

  539. get_safe(){

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

  541. }

  542. 

  543. pushvar(){

  544.     for pvar in $*; do

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

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

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

  548.     done

  549. }

  550. 

  551. popvar(){

  552.     for pvar in $*; do

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

  554.         test $level = 0 && continue

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

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

  557.         eval ${pvar}_level=$level

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

  559.     done

  560. }

  561. 

  562. enable(){

  563.     set_all yes $*

  564. }

  565. 

  566. disable(){

  567.     set_all no $*

  568. }

  569. 

  570. enable_weak(){

  571.     set_weak yes $*

  572. }

  573. 

  574. disable_weak(){

  575.     set_weak no $*

  576. }

  577. 

  578. enable_safe(){

  579.     for var; do

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

  581.     done

  582. }

  583. 

  584. disable_safe(){

  585.     for var; do

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

  587.     done

  588. }

  589. 

  590. do_enable_deep(){

  591.     for var; do

  592.         enabled $var && continue

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

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

  595.         pushvar var sgs

  596.         enable_deep $sel

  597.         popvar sgs

  598.         enable_deep_weak $sgs

  599.         popvar var

  600.     done

  601. }

  602. 

  603. enable_deep(){

  604.     do_enable_deep $*

  605.     enable $*

  606. }

  607. 

  608. enable_deep_weak(){

  609.     for var; do

  610.         disabled $var && continue

  611.         pushvar var

  612.         do_enable_deep $var

  613.         popvar var

  614.         enable_weak $var

  615.     done

  616. }

  617. 

  618. enabled(){

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

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

  621. }

  622. 

  623. disabled(){

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

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

  626. }

  627. 

  628. enabled_all(){

  629.     for opt; do

  630.         enabled $opt || return 1

  631.     done

  632. }

  633. 

  634. disabled_all(){

  635.     for opt; do

  636.         disabled $opt || return 1

  637.     done

  638. }

  639. 

  640. enabled_any(){

  641.     for opt; do

  642.         enabled $opt && return 0

  643.     done

  644. }

  645. 

  646. disabled_any(){

  647.     for opt; do

  648.         disabled $opt && return 0

  649.     done

  650.     return 1

  651. }

  652. 

  653. set_default(){

  654.     for opt; do

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

  656.     done

  657. }

  658. 

  659. is_in(){

  660.     value=$1

  661.     shift

  662.     for var in $*; do

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

  664.     done

  665.     return 1

  666. }

  667. 

  668. do_check_deps(){

  669.     for cfg; do

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

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

  672.         disabled ${cfg}_checking && continue

  673.         enable ${cfg}_checking

  674.         append allopts $cfg

  675. 

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

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

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

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

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

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

  682. 

  683.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  685.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  686. 

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

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

  689.         enabled_all  $dep_all || disable $cfg

  690.         enabled_any  $dep_any || disable $cfg

  691.         disabled_any $dep_sel && disable $cfg

  692. 

  693.         if enabled $cfg; then

  694.             enable_deep $dep_sel

  695.             enable_deep_weak $dep_sgs

  696.         fi

  697. 

  698.         disable ${cfg}_checking

  699.     done

  700. }

  701. 

  702. check_deps(){

  703.     unset allopts

  704. 

  705.     do_check_deps "$@"

  706. 

  707.     for cfg in $allopts; do

  708.         enabled $cfg || continue

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

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

  711.     done

  712. }

  713. 

  714. print_config(){

  715.     pfx=$1

  716.     files=$2

  717.     shift 2

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

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

  720.         {

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

  722.             v = \$2;

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

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

  725.             for (f in files) {

  726.                 file = files[f];

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

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

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

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

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

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

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

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

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

  736.                     yesno = \$2;

  737.                     c2 = tolower(c);

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

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

  740.                 }

  741.             }

  742.         }"

  743. }

  744. 

  745. print_enabled(){

  746.     suf=$1

  747.     shift

  748.     for v; do

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

  750.     done

  751. }

  752. 

  753. append(){

  754.     var=$1

  755.     shift

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

  757. }

  758. 

  759. prepend(){

  760.     var=$1

  761.     shift

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

  763. }

  764. 

  765. unique(){

  766.     var=$1

  767.     uniq_list=""

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

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

  770.     done

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

  772. }

  773. 

  774. add_cppflags(){

  775.     append CPPFLAGS "$@"

  776. }

  777. 

  778. add_cflags(){

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

  780. }

  781. 

  782. add_cxxflags(){

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

  784. }

  785. 

  786. add_asflags(){

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

  788. }

  789. 

  790. add_ldflags(){

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

  792. }

  793. 

  794. add_ldexeflags(){

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

  796. }

  797. 

  798. add_ldlibflags(){

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

  800. }

  801. 

  802. add_stripflags(){

  803.     append ASMSTRIPFLAGS "$@"

  804. }

  805. 

  806. add_extralibs(){

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

  808. }

  809. 

  810. add_host_cppflags(){

  811.     append host_cppflags "$@"

  812. }

  813. 

  814. add_host_cflags(){

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

  816. }

  817. 

  818. add_host_ldflags(){

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

  820. }

  821. 

  822. add_compat(){

  823.     append compat_objs $1

  824.     shift

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

  826. }

  827. 

  828. check_cmd(){

  829.     log "$@"

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

  831. }

  832. 

  833. check_stat(){

  834.     log check_stat "$@"

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

  836. }

  837. 

  838. cc_o(){

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

  840. }

  841. 

  842. cc_e(){

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

  844. }

  845. 

  846. check_cc(){

  847.     log check_cc "$@"

  848.     cat > $TMPC

  849.     log_file $TMPC

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

  851. }

  852. 

  853. check_cxx(){

  854.     log check_cxx "$@"

  855.     cat > $TMPCPP

  856.     log_file $TMPCPP

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

  858. }

  859. 

  860. check_oc(){

  861.     log check_oc "$@"

  862.     cat > $TMPM

  863.     log_file $TMPM

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

  865. }

  866. 

  867. check_cpp(){

  868.     log check_cpp "$@"

  869.     cat > $TMPC

  870.     log_file $TMPC

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

  872. }

  873. 

  874. as_o(){

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

  876. }

  877. 

  878. check_as(){

  879.     log check_as "$@"

  880.     cat > $TMPS

  881.     log_file $TMPS

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

  883. }

  884. 

  885. check_inline_asm(){

  886.     log check_inline_asm "$@"

  887.     name="$1"

  888.     code="$2"

  889.     shift 2

  890.     disable $name

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

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

  893. EOF

  894. }

  895. 

  896. check_insn(){

  897.     log check_insn "$@"

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

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

  900. }

  901. 

  902. check_yasm(){

  903.     log check_yasm "$@"

  904.     echo "$1" > $TMPS

  905.     log_file $TMPS

  906.     shift 1

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

  908. }

  909. 

  910. ld_o(){

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

  912. }

  913. 

  914. check_ld(){

  915.     log check_ld "$@"

  916.     type=$1

  917.     shift 1

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

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

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

  921.     flags=$($ldflags_filter $flags)

  922.     libs=$($ldflags_filter $libs)

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

  924. }

  925. 

  926. print_include(){

  927.     hdr=$1

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

  929.         echo "#include $hdr"    ||

  930.         echo "#include <$hdr>"

  931. }

  932. 

  933. check_code(){

  934.     log check_code "$@"

  935.     check=$1

  936.     headers=$2

  937.     code=$3

  938.     shift 3

  939.     {

  940.         for hdr in $headers; do

  941.             print_include $hdr

  942.         done

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

  944.     } | check_$check "$@"

  945. }

  946. 

  947. check_cppflags(){

  948.     log check_cppflags "$@"

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

  950. int x;

  951. EOF

  952. }

  953. 

  954. test_cflags(){

  955.     log test_cflags "$@"

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

  957.     check_cc "$@" <<EOF

  958. int x;

  959. EOF

  960. }

  961. 

  962. check_cflags(){

  963.     log check_cflags "$@"

  964.     test_cflags "$@" && add_cflags "$@"

  965. }

  966. 

  967. check_cxxflags(){

  968.     log check_cxxflags "$@"

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

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

  971. int x;

  972. EOF

  973. }

  974. 

  975. test_ldflags(){

  976.     log test_ldflags "$@"

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

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

  979. EOF

  980. }

  981. 

  982. check_ldflags(){

  983.     log check_ldflags "$@"

  984.     test_ldflags "$@" && add_ldflags "$@"

  985. }

  986. 

  987. test_stripflags(){

  988.     log test_stripflags "$@"

  989.     # call check_cc to get a fresh TMPO

  990.     check_cc <<EOF

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

  992. EOF

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

  994. }

  995. 

  996. check_stripflags(){

  997.     log check_stripflags "$@"

  998.     test_stripflags "$@" && add_stripflags "$@"

  999. }

  1000. 

  1001. check_header(){

  1002.     log check_header "$@"

  1003.     header=$1

  1004.     shift

  1005.     disable_safe $header

  1006.     check_cpp "$@" <<EOF && enable_safe $header

  1007. #include <$header>

  1008. int x;

  1009. EOF

  1010. }

  1011. 

  1012. check_header_oc(){

  1013.     log check_header_oc "$@"

  1014.     rm -f -- "$TMPO"

  1015.     header=$1

  1016.     shift

  1017.     disable_safe $header

  1018.     {

  1019.        echo "#include <$header>"

  1020.        echo "int main(void) { return 0; }"

  1021.     } | check_oc && check_stat "$TMPO" && enable_safe $headers

  1022. }

  1023. 

  1024. check_func(){

  1025.     log check_func "$@"

  1026.     func=$1

  1027.     shift

  1028.     disable $func

  1029.     check_ld "cc" "$@" <<EOF && enable $func

  1030. extern int $func();

  1031. int main(void){ $func(); }

  1032. EOF

  1033. }

  1034. 

  1035. check_mathfunc(){

  1036.     log check_mathfunc "$@"

  1037.     func=$1

  1038.     narg=$2

  1039.     shift 2

  1040.     test $narg = 2 && args="f, g" || args="f"

  1041.     disable $func

  1042.     check_ld "cc" "$@" <<EOF && enable $func

  1043. #include <math.h>

  1044. float foo(float f, float g) { return $func($args); }

  1045. int main(void){ return (int) foo; }

  1046. EOF

  1047. }

  1048. 

  1049. check_func_headers(){

  1050.     log check_func_headers "$@"

  1051.     headers=$1

  1052.     funcs=$2

  1053.     shift 2

  1054.     {

  1055.         for hdr in $headers; do

  1056.             print_include $hdr

  1057.         done

  1058.         for func in $funcs; do

  1059.             echo "long check_$func(void) { return (long) $func; }"

  1060.         done

  1061.         echo "int main(void) { return 0; }"

  1062.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1063. }

  1064. 

  1065. check_class_headers_cpp(){

  1066.     log check_class_headers_cpp "$@"

  1067.     headers=$1

  1068.     classes=$2

  1069.     shift 2

  1070.     {

  1071.         for hdr in $headers; do

  1072.             echo "#include <$hdr>"

  1073.         done

  1074.         echo "int main(void) { "

  1075.         i=1

  1076.         for class in $classes; do

  1077.             echo "$class obj$i;"

  1078.             i=$(expr $i + 1)

  1079.         done

  1080.         echo "return 0; }"

  1081.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1082. }

  1083. 

  1084. check_cpp_condition(){

  1085.     log check_cpp_condition "$@"

  1086.     header=$1

  1087.     condition=$2

  1088.     shift 2

  1089.     check_cpp "$@" <<EOF

  1090. #include <$header>

  1091. #if !($condition)

  1092. #error "unsatisfied condition: $condition"

  1093. #endif

  1094. EOF

  1095. }

  1096. 

  1097. check_lib(){

  1098.     log check_lib "$@"

  1099.     header="$1"

  1100.     func="$2"

  1101.     shift 2

  1102.     check_header $header && check_func $func "$@" && add_extralibs "$@"

  1103. }

  1104. 

  1105. check_lib2(){

  1106.     log check_lib2 "$@"

  1107.     headers="$1"

  1108.     funcs="$2"

  1109.     shift 2

  1110.     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"

  1111. }

  1112. 

  1113. check_lib_cpp(){

  1114.     log check_lib_cpp "$@"

  1115.     headers="$1"

  1116.     classes="$2"

  1117.     shift 2

  1118.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1119. }

  1120. 

  1121. check_pkg_config(){

  1122.     log check_pkg_config "$@"

  1123.     pkgandversion="$1"

  1124.     pkg="${1%% *}"

  1125.     headers="$2"

  1126.     funcs="$3"

  1127.     shift 3

  1128.     check_cmd $pkg_config --exists --print-errors $pkgandversion || return

  1129.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1130.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1131.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1132.         set_safe "${pkg}_cflags" $pkg_cflags   &&

  1133.         set_safe "${pkg}_libs"   $pkg_libs

  1134. }

  1135. 

  1136. check_exec(){

  1137.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1138. }

  1139. 

  1140. check_exec_crash(){

  1141.     code=$(cat)

  1142. 

  1143.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1144.     # are safe but may not be available everywhere.  Thus we use

  1145.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1146.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1147.     # is not defined by standard C so it is used conditionally.

  1148. 

  1149.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1150. #include <signal.h>

  1151. static void sighandler(int sig){

  1152.     raise(SIGTERM);

  1153. }

  1154. int foo(void){

  1155.     $code

  1156. }

  1157. int (*func_ptr)(void) = foo;

  1158. int main(void){

  1159.     signal(SIGILL, sighandler);

  1160.     signal(SIGFPE, sighandler);

  1161.     signal(SIGSEGV, sighandler);

  1162. #ifdef SIGBUS

  1163.     signal(SIGBUS, sighandler);

  1164. #endif

  1165.     return func_ptr();

  1166. }

  1167. EOF

  1168. }

  1169. 

  1170. check_type(){

  1171.     log check_type "$@"

  1172.     headers=$1

  1173.     type=$2

  1174.     shift 2

  1175.     disable_safe "$type"

  1176.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1177. }

  1178. 

  1179. check_struct(){

  1180.     log check_struct "$@"

  1181.     headers=$1

  1182.     struct=$2

  1183.     member=$3

  1184.     shift 3

  1185.     disable_safe "${struct}_${member}"

  1186.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1187.         enable_safe "${struct}_${member}"

  1188. }

  1189. 

  1190. check_builtin(){

  1191.     log check_builtin "$@"

  1192.     name=$1

  1193.     headers=$2

  1194.     builtin=$3

  1195.     shift 3

  1196.     disable "$name"

  1197.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1198. }

  1199. 

  1200. check_compile_assert(){

  1201.     log check_compile_assert "$@"

  1202.     name=$1

  1203.     headers=$2

  1204.     condition=$3

  1205.     shift 3

  1206.     disable "$name"

  1207.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1208. }

  1209. 

  1210. require(){

  1211.     name="$1"

  1212.     header="$2"

  1213.     func="$3"

  1214.     shift 3

  1215.     check_lib $header $func "$@" || die "ERROR: $name not found"

  1216. }

  1217. 

  1218. require2(){

  1219.     name="$1"

  1220.     headers="$2"

  1221.     func="$3"

  1222.     shift 3

  1223.     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"

  1224. }

  1225. 

  1226. require_cpp(){

  1227.     name="$1"

  1228.     headers="$2"

  1229.     classes="$3"

  1230.     shift 3

  1231.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1232. }

  1233. 

  1234. use_pkg_config(){

  1235.     pkg="$1"

  1236.     check_pkg_config "$@" || return 1

  1237.     add_cflags    $(get_safe "${pkg}_cflags")

  1238.     add_extralibs $(get_safe "${pkg}_libs")

  1239. }

  1240. 

  1241. require_pkg_config(){

  1242.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1243. }

  1244. 

  1245. require_libfreetype(){

  1246.     log require_libfreetype "$@"

  1247.     pkg="freetype2"

  1248.     check_cmd $pkg_config --exists --print-errors $pkg \

  1249.       || die "ERROR: $pkg not found"

  1250.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1251.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1252.     {

  1253.         echo "#include <ft2build.h>"

  1254.         echo "#include FT_FREETYPE_H"

  1255.         echo "long check_func(void) { return (long) FT_Init_FreeType; }"

  1256.         echo "int main(void) { return 0; }"

  1257.     } | check_ld "cc" $pkg_cflags $pkg_libs \

  1258.       && set_safe "${pkg}_cflags" $pkg_cflags \

  1259.       && set_safe "${pkg}_libs"   $pkg_libs \

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

  1261.     add_cflags    $(get_safe "${pkg}_cflags")

  1262.     add_extralibs $(get_safe "${pkg}_libs")

  1263. }

  1264. 

  1265. hostcc_e(){

  1266.     eval printf '%s\\n' $HOSTCC_E

  1267. }

  1268. 

  1269. hostcc_o(){

  1270.     eval printf '%s\\n' $HOSTCC_O

  1271. }

  1272. 

  1273. check_host_cc(){

  1274.     log check_host_cc "$@"

  1275.     cat > $TMPC

  1276.     log_file $TMPC

  1277.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1278. }

  1279. 

  1280. check_host_cpp(){

  1281.     log check_host_cpp "$@"

  1282.     cat > $TMPC

  1283.     log_file $TMPC

  1284.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1285. }

  1286. 

  1287. check_host_cppflags(){

  1288.     log check_host_cppflags "$@"

  1289.     check_host_cc "$@" <<EOF && append host_cppflags "$@"

  1290. int x;

  1291. EOF

  1292. }

  1293. 

  1294. check_host_cflags(){

  1295.     log check_host_cflags "$@"

  1296.     set -- $($host_cflags_filter "$@")

  1297.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1298. int x;

  1299. EOF

  1300. }

  1301. 

  1302. check_host_cpp_condition(){

  1303.     log check_host_cpp_condition "$@"

  1304.     header=$1

  1305.     condition=$2

  1306.     shift 2

  1307.     check_host_cpp "$@" <<EOF

  1308. #include <$header>

  1309. #if !($condition)

  1310. #error "unsatisfied condition: $condition"

  1311. #endif

  1312. EOF

  1313. }

  1314. 

  1315. cp_if_changed(){

  1316.     cmp -s "$1" "$2" && echo "$2 is unchanged" && return

  1317.     mkdir -p "$(dirname $2)"

  1318.     $cp_f "$1" "$2"

  1319. }

  1320. 

  1321. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1322. # system-dependent things.

  1323. 

  1324. COMPONENT_LIST="

  1325.     bsfs

  1326.     decoders

  1327.     demuxers

  1328.     encoders

  1329.     filters

  1330.     hwaccels

  1331.     indevs

  1332.     muxers

  1333.     outdevs

  1334.     parsers

  1335.     protocols

  1336. "

  1337. 

  1338. EXAMPLE_LIST="

  1339.     avio_reading_example

  1340.     avio_dir_cmd_example

  1341.     decoding_encoding_example

  1342.     demuxing_decoding_example

  1343.     extract_mvs_example

  1344.     filter_audio_example

  1345.     filtering_audio_example

  1346.     filtering_video_example

  1347.     metadata_example

  1348.     muxing_example

  1349.     qsvdec_example

  1350.     remuxing_example

  1351.     resampling_audio_example

  1352.     scaling_video_example

  1353.     transcode_aac_example

  1354.     transcoding_example

  1355. "

  1356. 

  1357. EXTERNAL_LIBRARY_LIST="

  1358.     avisynth

  1359.     bzlib

  1360.     crystalhd

  1361.     decklink

  1362.     frei0r

  1363.     gnutls

  1364.     iconv

  1365.     ladspa

  1366.     libaacplus

  1367.     libass

  1368.     libbluray

  1369.     libbs2b

  1370.     libcaca

  1371.     libcdio

  1372.     libcelt

  1373.     libdc1394

  1374.     libdcadec

  1375.     libfaac

  1376.     libfdk_aac

  1377.     libflite

  1378.     libfontconfig

  1379.     libfreetype

  1380.     libfribidi

  1381.     libgme

  1382.     libgsm

  1383.     libiec61883

  1384.     libilbc

  1385.     libkvazaar

  1386.     libmfx

  1387.     libmodplug

  1388.     libmp3lame

  1389.     libnut

  1390.     libopencore_amrnb

  1391.     libopencore_amrwb

  1392.     libopencv

  1393.     libopenh264

  1394.     libopenjpeg

  1395.     libopus

  1396.     libpulse

  1397.     libquvi

  1398.     librtmp

  1399.     libschroedinger

  1400.     libshine

  1401.     libsmbclient

  1402.     libsnappy

  1403.     libsoxr

  1404.     libspeex

  1405.     libssh

  1406.     libstagefright_h264

  1407.     libtheora

  1408.     libtwolame

  1409.     libutvideo

  1410.     libv4l2

  1411.     libvidstab

  1412.     libvo_aacenc

  1413.     libvo_amrwbenc

  1414.     libvorbis

  1415.     libvpx

  1416.     libwavpack

  1417.     libwebp

  1418.     libx264

  1419.     libx265

  1420.     libxavs

  1421.     libxcb

  1422.     libxcb_shm

  1423.     libxcb_shape

  1424.     libxcb_xfixes

  1425.     libxvid

  1426.     libzmq

  1427.     libzvbi

  1428.     lzma

  1429.     mmal

  1430.     nvenc

  1431.     openal

  1432.     opencl

  1433.     opengl

  1434.     openssl

  1435.     sdl

  1436.     securetransport

  1437.     x11grab

  1438.     xlib

  1439.     zlib

  1440. "

  1441. 

  1442. DOCUMENT_LIST="

  1443.     doc

  1444.     htmlpages

  1445.     manpages

  1446.     podpages

  1447.     txtpages

  1448. "

  1449. 

  1450. FEATURE_LIST="

  1451.     ftrapv

  1452.     gray

  1453.     hardcoded_tables

  1454.     runtime_cpudetect

  1455.     safe_bitstream_reader

  1456.     shared

  1457.     small

  1458.     static

  1459.     swscale_alpha

  1460. "

  1461. 

  1462. HWACCEL_LIST="

  1463.     d3d11va

  1464.     dxva2

  1465.     vaapi

  1466.     vda

  1467.     vdpau

  1468.     videotoolbox

  1469.     xvmc

  1470. "

  1471. 

  1472. LIBRARY_LIST="

  1473.     avcodec

  1474.     avdevice

  1475.     avfilter

  1476.     avformat

  1477.     avresample

  1478.     avutil

  1479.     postproc

  1480.     swresample

  1481.     swscale

  1482. "

  1483. 

  1484. LICENSE_LIST="

  1485.     gpl

  1486.     nonfree

  1487.     version3

  1488. "

  1489. 

  1490. PROGRAM_LIST="

  1491.     ffplay

  1492.     ffprobe

  1493.     ffserver

  1494.     ffmpeg

  1495. "

  1496. 

  1497. SUBSYSTEM_LIST="

  1498.     dct

  1499.     dwt

  1500.     error_resilience

  1501.     faan

  1502.     fast_unaligned

  1503.     fft

  1504.     lsp

  1505.     lzo

  1506.     mdct

  1507.     pixelutils

  1508.     network

  1509.     rdft

  1510. "

  1511. 

  1512. CONFIG_LIST="

  1513.     $COMPONENT_LIST

  1514.     $DOCUMENT_LIST

  1515.     $EXAMPLE_LIST

  1516.     $EXTERNAL_LIBRARY_LIST

  1517.     $FEATURE_LIST

  1518.     $HWACCEL_LIST

  1519.     $LICENSE_LIST

  1520.     $LIBRARY_LIST

  1521.     $PROGRAM_LIST

  1522.     $SUBSYSTEM_LIST

  1523.     fontconfig

  1524.     incompatible_libav_abi

  1525.     memalign_hack

  1526.     memory_poisoning

  1527.     neon_clobber_test

  1528.     pic

  1529.     pod2man

  1530.     raise_major

  1531.     thumb

  1532.     valgrind_backtrace

  1533.     xmm_clobber_test

  1534. "

  1535. 

  1536. THREADS_LIST="

  1537.     pthreads

  1538.     os2threads

  1539.     w32threads

  1540. "

  1541. 

  1542. ATOMICS_LIST="

  1543.     atomics_gcc

  1544.     atomics_suncc

  1545.     atomics_win32

  1546. "

  1547. 

  1548. ARCH_LIST="

  1549.     aarch64

  1550.     alpha

  1551.     arm

  1552.     avr32

  1553.     avr32_ap

  1554.     avr32_uc

  1555.     bfin

  1556.     ia64

  1557.     m68k

  1558.     mips

  1559.     mips64

  1560.     parisc

  1561.     ppc

  1562.     ppc64

  1563.     s390

  1564.     sh4

  1565.     sparc

  1566.     sparc64

  1567.     tilegx

  1568.     tilepro

  1569.     tomi

  1570.     x86

  1571.     x86_32

  1572.     x86_64

  1573. "

  1574. 

  1575. ARCH_EXT_LIST_ARM="

  1576.     armv5te

  1577.     armv6

  1578.     armv6t2

  1579.     armv8

  1580.     neon

  1581.     vfp

  1582.     vfpv3

  1583.     setend

  1584. "

  1585. 

  1586. ARCH_EXT_LIST_MIPS="

  1587.     mipsfpu

  1588.     mips32r2

  1589.     mips32r5

  1590.     mips64r6

  1591.     mipsdspr1

  1592.     mipsdspr2

  1593.     msa

  1594. "

  1595. 

  1596. ARCH_EXT_LIST_LOONGSON="

  1597.     loongson2

  1598.     loongson3

  1599.     mmi

  1600. "

  1601. 

  1602. ARCH_EXT_LIST_X86_SIMD="

  1603.     amd3dnow

  1604.     amd3dnowext

  1605.     avx

  1606.     avx2

  1607.     fma3

  1608.     fma4

  1609.     mmx

  1610.     mmxext

  1611.     sse

  1612.     sse2

  1613.     sse3

  1614.     sse4

  1615.     sse42

  1616.     ssse3

  1617.     xop

  1618. "

  1619. 

  1620. ARCH_EXT_LIST_PPC="

  1621.     altivec

  1622.     dcbzl

  1623.     ldbrx

  1624.     power8

  1625.     ppc4xx

  1626.     vsx

  1627. "

  1628. 

  1629. ARCH_EXT_LIST_X86="

  1630.     $ARCH_EXT_LIST_X86_SIMD

  1631.     cpunop

  1632.     i686

  1633. "

  1634. 

  1635. ARCH_EXT_LIST="

  1636.     $ARCH_EXT_LIST_ARM

  1637.     $ARCH_EXT_LIST_PPC

  1638.     $ARCH_EXT_LIST_X86

  1639.     $ARCH_EXT_LIST_MIPS

  1640.     $ARCH_EXT_LIST_LOONGSON

  1641. "

  1642. 

  1643. ARCH_FEATURES="

  1644.     aligned_stack

  1645.     fast_64bit

  1646.     fast_clz

  1647.     fast_cmov

  1648.     local_aligned_8

  1649.     local_aligned_16

  1650.     local_aligned_32

  1651.     simd_align_16

  1652. "

  1653. 

  1654. BUILTIN_LIST="

  1655.     atomic_cas_ptr

  1656.     atomic_compare_exchange

  1657.     machine_rw_barrier

  1658.     MemoryBarrier

  1659.     mm_empty

  1660.     rdtsc

  1661.     sarestart

  1662.     sync_val_compare_and_swap

  1663. "

  1664. HAVE_LIST_CMDLINE="

  1665.     inline_asm

  1666.     symver

  1667.     yasm

  1668. "

  1669. 

  1670. HAVE_LIST_PUB="

  1671.     bigendian

  1672.     fast_unaligned

  1673.     incompatible_libav_abi

  1674. "

  1675. 

  1676. HEADERS_LIST="

  1677.     alsa_asoundlib_h

  1678.     altivec_h

  1679.     arpa_inet_h

  1680.     asm_types_h

  1681.     cdio_paranoia_h

  1682.     cdio_paranoia_paranoia_h

  1683.     dev_bktr_ioctl_bt848_h

  1684.     dev_bktr_ioctl_meteor_h

  1685.     dev_ic_bt8xx_h

  1686.     dev_video_bktr_ioctl_bt848_h

  1687.     dev_video_meteor_ioctl_meteor_h

  1688.     direct_h

  1689.     dirent_h

  1690.     dlfcn_h

  1691.     d3d11_h

  1692.     dxva_h

  1693.     ES2_gl_h

  1694.     gsm_h

  1695.     io_h

  1696.     mach_mach_time_h

  1697.     machine_ioctl_bt848_h

  1698.     machine_ioctl_meteor_h

  1699.     malloc_h

  1700.     openjpeg_1_5_openjpeg_h

  1701.     OpenGL_gl3_h

  1702.     poll_h

  1703.     sndio_h

  1704.     soundcard_h

  1705.     sys_mman_h

  1706.     sys_param_h

  1707.     sys_resource_h

  1708.     sys_select_h

  1709.     sys_soundcard_h

  1710.     sys_time_h

  1711.     sys_un_h

  1712.     sys_videoio_h

  1713.     termios_h

  1714.     udplite_h

  1715.     unistd_h

  1716.     valgrind_valgrind_h

  1717.     windows_h

  1718.     winsock2_h

  1719. "

  1720. 

  1721. INTRINSICS_LIST="

  1722.     intrinsics_neon

  1723. "

  1724. 

  1725. MATH_FUNCS="

  1726.     atanf

  1727.     atan2f

  1728.     cbrt

  1729.     cbrtf

  1730.     copysign

  1731.     cosf

  1732.     erf

  1733.     exp2

  1734.     exp2f

  1735.     expf

  1736.     isinf

  1737.     isnan

  1738.     ldexpf

  1739.     llrint

  1740.     llrintf

  1741.     log2

  1742.     log2f

  1743.     log10f

  1744.     lrint

  1745.     lrintf

  1746.     powf

  1747.     rint

  1748.     round

  1749.     roundf

  1750.     sinf

  1751.     trunc

  1752.     truncf

  1753. "

  1754. 

  1755. SYSTEM_FUNCS="

  1756.     access

  1757.     aligned_malloc

  1758.     clock_gettime

  1759.     closesocket

  1760.     CommandLineToArgvW

  1761.     CoTaskMemFree

  1762.     CryptGenRandom

  1763.     dlopen

  1764.     fcntl

  1765.     flt_lim

  1766.     fork

  1767.     getaddrinfo

  1768.     gethrtime

  1769.     getopt

  1770.     GetProcessAffinityMask

  1771.     GetProcessMemoryInfo

  1772.     GetProcessTimes

  1773.     getrusage

  1774.     getservbyport

  1775.     GetSystemTimeAsFileTime

  1776.     gettimeofday

  1777.     glob

  1778.     glXGetProcAddress

  1779.     gmtime_r

  1780.     inet_aton

  1781.     isatty

  1782.     jack_port_get_latency_range

  1783.     kbhit

  1784.     localtime_r

  1785.     lstat

  1786.     lzo1x_999_compress

  1787.     mach_absolute_time

  1788.     MapViewOfFile

  1789.     memalign

  1790.     mkstemp

  1791.     mmap

  1792.     mprotect

  1793.     nanosleep

  1794.     PeekNamedPipe

  1795.     posix_memalign

  1796.     pthread_cancel

  1797.     sched_getaffinity

  1798.     SetConsoleTextAttribute

  1799.     SetConsoleCtrlHandler

  1800.     setmode

  1801.     setrlimit

  1802.     Sleep

  1803.     strerror_r

  1804.     sysconf

  1805.     sysctl

  1806.     usleep

  1807.     VirtualAlloc

  1808.     wglGetProcAddress

  1809. "

  1810. 

  1811. TOOLCHAIN_FEATURES="

  1812.     as_dn_directive

  1813.     as_func

  1814.     as_object_arch

  1815.     asm_mod_q

  1816.     attribute_may_alias

  1817.     attribute_packed

  1818.     ebp_available

  1819.     ebx_available

  1820.     gnu_as

  1821.     gnu_windres

  1822.     ibm_asm

  1823.     inline_asm_labels

  1824.     inline_asm_nonlocal_labels

  1825.     inline_asm_direct_symbol_refs

  1826.     pragma_deprecated

  1827.     rsync_contimeout

  1828.     symver_asm_label

  1829.     symver_gnu_asm

  1830.     vfp_args

  1831.     xform_asm

  1832.     xmm_clobbers

  1833. "

  1834. 

  1835. TYPES_LIST="

  1836.     CONDITION_VARIABLE_Ptr

  1837.     socklen_t

  1838.     struct_addrinfo

  1839.     struct_dcadec_exss_info_matrix_encoding

  1840.     struct_group_source_req

  1841.     struct_ip_mreq_source

  1842.     struct_ipv6_mreq

  1843.     struct_pollfd

  1844.     struct_rusage_ru_maxrss

  1845.     struct_sctp_event_subscribe

  1846.     struct_sockaddr_in6

  1847.     struct_sockaddr_sa_len

  1848.     struct_sockaddr_storage

  1849.     struct_stat_st_mtim_tv_nsec

  1850.     struct_v4l2_frmivalenum_discrete

  1851. "

  1852. 

  1853. HAVE_LIST="

  1854.     $ARCH_EXT_LIST

  1855.     $(add_suffix _external $ARCH_EXT_LIST)

  1856.     $(add_suffix _inline   $ARCH_EXT_LIST)

  1857.     $ARCH_FEATURES

  1858.     $ATOMICS_LIST

  1859.     $BUILTIN_LIST

  1860.     $HAVE_LIST_CMDLINE

  1861.     $HAVE_LIST_PUB

  1862.     $HEADERS_LIST

  1863.     $INTRINSICS_LIST

  1864.     $MATH_FUNCS

  1865.     $SYSTEM_FUNCS

  1866.     $THREADS_LIST

  1867.     $TOOLCHAIN_FEATURES

  1868.     $TYPES_LIST

  1869.     atomics_native

  1870.     dos_paths

  1871.     dxva2api_cobj

  1872.     dxva2_lib

  1873.     libc_msvcrt

  1874.     libdc1394_1

  1875.     libdc1394_2

  1876.     makeinfo

  1877.     makeinfo_html

  1878.     perl

  1879.     pod2man

  1880.     sdl

  1881.     section_data_rel_ro

  1882.     texi2html

  1883.     threads

  1884.     vaapi_x11

  1885.     vdpau_x11

  1886.     xlib

  1887. "

  1888. 

  1889. # options emitted with CONFIG_ prefix but not available on the command line

  1890. CONFIG_EXTRA="

  1891.     aandcttables

  1892.     ac3dsp

  1893.     audio_frame_queue

  1894.     audiodsp

  1895.     blockdsp

  1896.     bswapdsp

  1897.     cabac

  1898.     dvprofile

  1899.     exif

  1900.     faandct

  1901.     faanidct

  1902.     fdctdsp

  1903.     flacdsp

  1904.     fmtconvert

  1905.     frame_thread_encoder

  1906.     g722dsp

  1907.     gcrypt

  1908.     gmp

  1909.     golomb

  1910.     gplv3

  1911.     h263dsp

  1912.     h264chroma

  1913.     h264dsp

  1914.     h264pred

  1915.     h264qpel

  1916.     hpeldsp

  1917.     huffman

  1918.     huffyuvdsp

  1919.     huffyuvencdsp

  1920.     idctdsp

  1921.     iirfilter

  1922.     imdct15

  1923.     intrax8

  1924.     ividsp

  1925.     jpegtables

  1926.     libx262

  1927.     lgplv3

  1928.     llauddsp

  1929.     llviddsp

  1930.     lpc

  1931.     me_cmp

  1932.     mpeg_er

  1933.     mpegaudio

  1934.     mpegaudiodsp

  1935.     mpegvideo

  1936.     mpegvideoenc

  1937.     mss34dsp

  1938.     pixblockdsp

  1939.     qpeldsp

  1940.     qsv

  1941.     qsvdec

  1942.     qsvenc

  1943.     rangecoder

  1944.     riffdec

  1945.     riffenc

  1946.     rtpdec

  1947.     rtpenc_chain

  1948.     rv34dsp

  1949.     sinewin

  1950.     snappy

  1951.     startcode

  1952.     texturedsp

  1953.     texturedspenc

  1954.     tpeldsp

  1955.     videodsp

  1956.     vp3dsp

  1957.     vp56dsp

  1958.     vp8dsp

  1959.     wma_freqs

  1960.     wmv2dsp

  1961. "

  1962. 

  1963. CMDLINE_SELECT="

  1964.     $ARCH_EXT_LIST

  1965.     $CONFIG_LIST

  1966.     $HAVE_LIST_CMDLINE

  1967.     $THREADS_LIST

  1968.     asm

  1969.     cross_compile

  1970.     debug

  1971.     extra_warnings

  1972.     logging

  1973.     lto

  1974.     optimizations

  1975.     rpath

  1976.     stripping

  1977. "

  1978. 

  1979. PATHS_LIST="

  1980.     bindir

  1981.     datadir

  1982.     docdir

  1983.     incdir

  1984.     libdir

  1985.     mandir

  1986.     pkgconfigdir

  1987.     prefix

  1988.     shlibdir

  1989. "

  1990. 

  1991. CMDLINE_SET="

  1992.     $PATHS_LIST

  1993.     ar

  1994.     arch

  1995.     as

  1996.     assert_level

  1997.     build_suffix

  1998.     cc

  1999.     cpu

  2000.     cross_prefix

  2001.     cxx

  2002.     dep_cc

  2003.     doxygen

  2004.     env

  2005.     extra_version

  2006.     gas

  2007.     host_cc

  2008.     host_cflags

  2009.     host_ld

  2010.     host_ldflags

  2011.     host_libs

  2012.     host_os

  2013.     install

  2014.     ld

  2015.     logfile

  2016.     malloc_prefix

  2017.     nm

  2018.     optflags

  2019.     pkg_config

  2020.     pkg_config_flags

  2021.     progs_suffix

  2022.     random_seed

  2023.     ranlib

  2024.     samples

  2025.     strip

  2026.     sws_max_filter_size

  2027.     sysinclude

  2028.     sysroot

  2029.     target_exec

  2030.     target_os

  2031.     target_path

  2032.     target_samples

  2033.     tempprefix

  2034.     toolchain

  2035.     valgrind

  2036.     yasmexe

  2037. "

  2038. 

  2039. CMDLINE_APPEND="

  2040.     extra_cflags

  2041.     extra_cxxflags

  2042.     host_cppflags

  2043. "

  2044. 

  2045. # code dependency declarations

  2046. 

  2047. # architecture extensions

  2048. 

  2049. armv5te_deps="arm"

  2050. armv6_deps="arm"

  2051. armv6t2_deps="arm"

  2052. armv8_deps="aarch64"

  2053. neon_deps_any="aarch64 arm"

  2054. intrinsics_neon_deps="neon"

  2055. vfp_deps_any="aarch64 arm"

  2056. vfpv3_deps="vfp"

  2057. setend_deps="arm"

  2058. 

  2059. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2060. 

  2061. mipsfpu_deps="mips"

  2062. mipsdspr1_deps="mips"

  2063. mipsdspr2_deps="mips"

  2064. mips32r2_deps="mips"

  2065. mips32r5_deps="mips"

  2066. mips64r6_deps="mips"

  2067. msa_deps="mips"

  2068. mmi_deps="mips"

  2069. 

  2070. altivec_deps="ppc"

  2071. dcbzl_deps="ppc"

  2072. ldbrx_deps="ppc"

  2073. ppc4xx_deps="ppc"

  2074. vsx_deps="altivec"

  2075. power8_deps="vsx"

  2076. 

  2077. cpunop_deps="i686"

  2078. x86_64_select="i686"

  2079. x86_64_suggest="fast_cmov"

  2080. 

  2081. amd3dnow_deps="mmx"

  2082. amd3dnowext_deps="amd3dnow"

  2083. i686_deps="x86"

  2084. mmx_deps="x86"

  2085. mmxext_deps="mmx"

  2086. sse_deps="mmxext"

  2087. sse2_deps="sse"

  2088. sse3_deps="sse2"

  2089. ssse3_deps="sse3"

  2090. sse4_deps="ssse3"

  2091. sse42_deps="sse4"

  2092. avx_deps="sse42"

  2093. xop_deps="avx"

  2094. fma3_deps="avx"

  2095. fma4_deps="avx"

  2096. avx2_deps="avx"

  2097. 

  2098. mmx_external_deps="yasm"

  2099. mmx_inline_deps="inline_asm"

  2100. mmx_suggest="mmx_external mmx_inline"

  2101. 

  2102. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2103.     eval dep=\$${ext}_deps

  2104.     eval ${ext}_external_deps='"${dep}_external"'

  2105.     eval ${ext}_inline_deps='"${dep}_inline"'

  2106.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2107. done

  2108. 

  2109. aligned_stack_if_any="aarch64 ppc x86"

  2110. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2111. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2112. fast_unaligned_if_any="aarch64 ppc x86"

  2113. simd_align_16_if_any="altivec neon sse"

  2114. 

  2115. # system capabilities

  2116. symver_if_any="symver_asm_label symver_gnu_asm"

  2117. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2118. 

  2119. # threading support

  2120. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2121. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2122. atomics_win32_if="MemoryBarrier"

  2123. atomics_native_if_any="$ATOMICS_LIST"

  2124. w32threads_deps="atomics_native"

  2125. threads_if_any="$THREADS_LIST"

  2126. 

  2127. # subsystems

  2128. dct_select="rdft"

  2129. error_resilience_select="me_cmp"

  2130. faandct_deps="faan fdctdsp"

  2131. faanidct_deps="faan idctdsp"

  2132. frame_thread_encoder_deps="encoders threads"

  2133. intrax8_select="error_resilience"

  2134. mdct_select="fft"

  2135. rdft_select="fft"

  2136. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2137. mpeg_er_select="error_resilience"

  2138. mpegaudio_select="mpegaudiodsp"

  2139. mpegaudiodsp_select="dct"

  2140. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2141. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2142. qsvdec_select="qsv"

  2143. qsvenc_select="qsv"

  2144. 

  2145. # decoders / encoders

  2146. aac_decoder_select="imdct15 mdct sinewin"

  2147. aac_fixed_decoder_select="mdct sinewin"

  2148. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2149. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2150. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2151. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2152. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2153. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2154. adpcm_g722_decoder_select="g722dsp"

  2155. adpcm_g722_encoder_select="g722dsp"

  2156. aic_decoder_select="golomb idctdsp"

  2157. alac_encoder_select="lpc"

  2158. als_decoder_select="bswapdsp"

  2159. amrnb_decoder_select="lsp"

  2160. amrwb_decoder_select="lsp"

  2161. amv_decoder_select="sp5x_decoder exif"

  2162. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2163. ape_decoder_select="bswapdsp llauddsp"

  2164. apng_decoder_select="zlib"

  2165. apng_encoder_select="huffyuvencdsp zlib"

  2166. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2167. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2168. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2169. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2170. atrac1_decoder_select="mdct sinewin"

  2171. atrac3_decoder_select="mdct"

  2172. atrac3p_decoder_select="mdct sinewin"

  2173. avrn_decoder_select="exif jpegtables"

  2174. bink_decoder_select="blockdsp hpeldsp"

  2175. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2176. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2177. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2178. cllc_decoder_select="bswapdsp"

  2179. comfortnoise_encoder_select="lpc"

  2180. cook_decoder_select="audiodsp mdct sinewin"

  2181. cscd_decoder_select="lzo"

  2182. cscd_decoder_suggest="zlib"

  2183. dca_decoder_select="fmtconvert mdct"

  2184. dds_decoder_select="texturedsp"

  2185. dirac_decoder_select="dwt golomb videodsp mpegvideoenc"

  2186. dnxhd_decoder_select="blockdsp idctdsp"

  2187. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2188. dvvideo_decoder_select="dvprofile idctdsp"

  2189. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2190. dxa_decoder_select="zlib"

  2191. eac3_decoder_select="ac3_decoder"

  2192. eac3_encoder_select="ac3_encoder"

  2193. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2194. eatgq_decoder_select="aandcttables"

  2195. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"

  2196. exr_decoder_select="zlib"

  2197. ffv1_decoder_select="golomb rangecoder"

  2198. ffv1_encoder_select="rangecoder"

  2199. ffvhuff_decoder_select="huffyuv_decoder"

  2200. ffvhuff_encoder_select="huffyuv_encoder"

  2201. fic_decoder_select="golomb"

  2202. flac_decoder_select="flacdsp golomb"

  2203. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2204. flashsv_decoder_select="zlib"

  2205. flashsv_encoder_select="zlib"

  2206. flashsv2_encoder_select="zlib"

  2207. flashsv2_decoder_select="zlib"

  2208. flv_decoder_select="h263_decoder"

  2209. flv_encoder_select="h263_encoder"

  2210. fourxm_decoder_select="blockdsp bswapdsp"

  2211. fraps_decoder_select="bswapdsp huffman"

  2212. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2213. g729_decoder_select="audiodsp"

  2214. h261_decoder_select="mpegvideo"

  2215. h261_encoder_select="aandcttables mpegvideoenc"

  2216. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2217. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2218. h263i_decoder_select="h263_decoder"

  2219. h263p_decoder_select="h263_decoder"

  2220. h263p_encoder_select="h263_encoder"

  2221. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"

  2222. h264_decoder_suggest="error_resilience"

  2223. h264_qsv_decoder_deps="libmfx"

  2224. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2225. h264_qsv_encoder_deps="libmfx"

  2226. h264_qsv_encoder_select="qsvenc"

  2227. hap_decoder_select="snappy texturedsp"

  2228. hap_encoder_deps="libsnappy"

  2229. hap_encoder_select="texturedspenc"

  2230. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2231. hevc_qsv_encoder_deps="libmfx"

  2232. hevc_qsv_decoder_deps="libmfx"

  2233. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2234. hevc_qsv_encoder_select="qsvenc"

  2235. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2236. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2237. iac_decoder_select="imc_decoder"

  2238. imc_decoder_select="bswapdsp fft mdct sinewin"

  2239. indeo3_decoder_select="hpeldsp"

  2240. indeo4_decoder_select="ividsp"

  2241. indeo5_decoder_select="ividsp"

  2242. interplay_video_decoder_select="hpeldsp"

  2243. jpegls_decoder_select="golomb mjpeg_decoder"

  2244. jpegls_encoder_select="golomb"

  2245. jv_decoder_select="blockdsp"

  2246. lagarith_decoder_select="huffyuvdsp"

  2247. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2248. loco_decoder_select="golomb"

  2249. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2250. metasound_decoder_select="lsp mdct sinewin"

  2251. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2252. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2253. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2254. mjpegb_decoder_select="mjpeg_decoder"

  2255. mlp_decoder_select="mlp_parser"

  2256. motionpixels_decoder_select="bswapdsp"

  2257. mp1_decoder_select="mpegaudio"

  2258. mp1float_decoder_select="mpegaudio"

  2259. mp2_decoder_select="mpegaudio"

  2260. mp2float_decoder_select="mpegaudio"

  2261. mp3_decoder_select="mpegaudio"

  2262. mp3adu_decoder_select="mpegaudio"

  2263. mp3adufloat_decoder_select="mpegaudio"

  2264. mp3float_decoder_select="mpegaudio"

  2265. mp3on4_decoder_select="mpegaudio"

  2266. mp3on4float_decoder_select="mpegaudio"

  2267. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2268. mpc8_decoder_select="mpegaudiodsp"

  2269. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2270. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2271. mpegvideo_decoder_select="mpegvideo"

  2272. mpeg1video_decoder_select="mpegvideo"

  2273. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2274. mpeg2video_decoder_select="mpegvideo"

  2275. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2276. mpeg2_qsv_decoder_deps="libmfx"

  2277. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2278. mpeg2_qsv_encoder_deps="libmfx"

  2279. mpeg2_qsv_encoder_select="qsvenc"

  2280. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2281. mpeg4_encoder_select="h263_encoder"

  2282. msa1_decoder_select="mss34dsp"

  2283. msmpeg4v1_decoder_select="h263_decoder"

  2284. msmpeg4v2_decoder_select="h263_decoder"

  2285. msmpeg4v2_encoder_select="h263_encoder"

  2286. msmpeg4v3_decoder_select="h263_decoder"

  2287. msmpeg4v3_encoder_select="h263_encoder"

  2288. mss2_decoder_select="vc1_decoder"

  2289. mts2_decoder_select="mss34dsp"

  2290. mxpeg_decoder_select="mjpeg_decoder"

  2291. nellymoser_decoder_select="mdct sinewin"

  2292. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2293. nuv_decoder_select="idctdsp lzo"

  2294. on2avc_decoder_select="mdct"

  2295. opus_decoder_deps="swresample"

  2296. opus_decoder_select="imdct15"

  2297. png_decoder_select="zlib"

  2298. png_encoder_select="huffyuvencdsp zlib"

  2299. prores_decoder_select="blockdsp idctdsp"

  2300. prores_encoder_select="fdctdsp"

  2301. qcelp_decoder_select="lsp"

  2302. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2303. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2304. ra_144_decoder_select="audiodsp"

  2305. ralf_decoder_select="golomb"

  2306. rawvideo_decoder_select="bswapdsp"

  2307. rtjpeg_decoder_select="me_cmp"

  2308. rv10_decoder_select="h263_decoder"

  2309. rv10_encoder_select="h263_encoder"

  2310. rv20_decoder_select="h263_decoder"

  2311. rv20_encoder_select="h263_encoder"

  2312. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2313. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2314. shorten_decoder_select="golomb"

  2315. sipr_decoder_select="lsp"

  2316. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2317. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2318. sonic_decoder_select="golomb rangecoder"

  2319. sonic_encoder_select="golomb rangecoder"

  2320. sonic_ls_encoder_select="golomb rangecoder"

  2321. sp5x_decoder_select="mjpeg_decoder"

  2322. svq1_decoder_select="hpeldsp"

  2323. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2324. svq3_decoder_select="h264_decoder hpeldsp tpeldsp"

  2325. svq3_decoder_suggest="zlib"

  2326. tak_decoder_select="audiodsp"

  2327. tdsc_decoder_select="zlib mjpeg_decoder"

  2328. theora_decoder_select="vp3_decoder"

  2329. thp_decoder_select="mjpeg_decoder"

  2330. tiff_decoder_suggest="zlib lzma"

  2331. tiff_encoder_suggest="zlib"

  2332. truehd_decoder_select="mlp_parser"

  2333. truemotion2_decoder_select="bswapdsp"

  2334. truespeech_decoder_select="bswapdsp"

  2335. tscc_decoder_select="zlib"

  2336. twinvq_decoder_select="mdct lsp sinewin"

  2337. txd_decoder_select="texturedsp"

  2338. utvideo_decoder_select="bswapdsp"

  2339. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2340. vble_decoder_select="huffyuvdsp"

  2341. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"

  2342. vc1image_decoder_select="vc1_decoder"

  2343. vc1_qsv_decoder_deps="libmfx"

  2344. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2345. vorbis_decoder_select="mdct"

  2346. vorbis_encoder_select="mdct"

  2347. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2348. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2349. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2350. vp6a_decoder_select="vp6_decoder"

  2351. vp6f_decoder_select="vp6_decoder"

  2352. vp7_decoder_select="h264pred videodsp vp8dsp"

  2353. vp8_decoder_select="h264pred videodsp vp8dsp"

  2354. vp9_decoder_select="videodsp vp9_parser"

  2355. webp_decoder_select="vp8_decoder"

  2356. wmalossless_decoder_select="llauddsp"

  2357. wmapro_decoder_select="mdct sinewin wma_freqs"

  2358. wmav1_decoder_select="mdct sinewin wma_freqs"

  2359. wmav1_encoder_select="mdct sinewin wma_freqs"

  2360. wmav2_decoder_select="mdct sinewin wma_freqs"

  2361. wmav2_encoder_select="mdct sinewin wma_freqs"

  2362. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2363. wmv1_decoder_select="h263_decoder"

  2364. wmv1_encoder_select="h263_encoder"

  2365. wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2366. wmv2_encoder_select="h263_encoder wmv2dsp"

  2367. wmv3_decoder_select="vc1_decoder"

  2368. wmv3image_decoder_select="wmv3_decoder"

  2369. zerocodec_decoder_select="zlib"

  2370. zlib_decoder_select="zlib"

  2371. zlib_encoder_select="zlib"

  2372. zmbv_decoder_select="zlib"

  2373. zmbv_encoder_select="zlib"

  2374. 

  2375. # hardware accelerators

  2376. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2377. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"

  2378. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2379. vaapi_deps="va_va_h"

  2380. vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads CoreServices_CoreServices_h"

  2381. vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore -framework CoreServices"

  2382. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2383. videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads CoreServices_CoreServices_h"

  2384. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreServices"

  2385. xvmc_deps="X11_extensions_XvMClib_h"

  2386. 

  2387. h263_vaapi_hwaccel_deps="vaapi"

  2388. h263_vaapi_hwaccel_select="h263_decoder"

  2389. h263_vdpau_hwaccel_deps="vdpau"

  2390. h263_vdpau_hwaccel_select="h263_decoder"

  2391. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2392. h263_videotoolbox_hwaccel_select="h263_decoder"

  2393. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2394. h264_d3d11va_hwaccel_deps="d3d11va"

  2395. h264_d3d11va_hwaccel_select="h264_decoder"

  2396. h264_dxva2_hwaccel_deps="dxva2"

  2397. h264_dxva2_hwaccel_select="h264_decoder"

  2398. h264_mmal_decoder_deps="mmal"

  2399. h264_mmal_hwaccel_deps="mmal"

  2400. h264_mmal_decoder_select="h264_decoder"

  2401. h264_mmal_encoder_deps="mmal"

  2402. h264_qsv_hwaccel_deps="libmfx"

  2403. h264_vaapi_hwaccel_deps="vaapi"

  2404. h264_vaapi_hwaccel_select="h264_decoder"

  2405. h264_vda_decoder_deps="vda"

  2406. h264_vda_decoder_select="h264_decoder"

  2407. h264_vda_hwaccel_deps="vda"

  2408. h264_vda_hwaccel_select="h264_decoder"

  2409. h264_vda_old_hwaccel_deps="vda"

  2410. h264_vda_old_hwaccel_select="h264_decoder"

  2411. h264_vdpau_decoder_deps="vdpau"

  2412. h264_vdpau_decoder_select="h264_decoder"

  2413. h264_vdpau_hwaccel_deps="vdpau"

  2414. h264_vdpau_hwaccel_select="h264_decoder"

  2415. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2416. h264_videotoolbox_hwaccel_select="h264_decoder"

  2417. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2418. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2419. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2420. hevc_dxva2_hwaccel_select="hevc_decoder"

  2421. hevc_qsv_hwaccel_deps="libmfx"

  2422. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2423. hevc_vaapi_hwaccel_select="hevc_decoder"

  2424. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2425. hevc_vdpau_hwaccel_select="hevc_decoder"

  2426. mpeg_vdpau_decoder_deps="vdpau"

  2427. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2428. mpeg_xvmc_hwaccel_deps="xvmc"

  2429. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2430. mpeg1_vdpau_decoder_deps="vdpau"

  2431. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2432. mpeg1_vdpau_hwaccel_deps="vdpau"

  2433. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2434. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2435. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2436. mpeg1_xvmc_hwaccel_deps="xvmc"

  2437. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2438. mpeg2_crystalhd_decoder_select="crystalhd"

  2439. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2440. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2441. mpeg2_dxva2_hwaccel_deps="dxva2"

  2442. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2443. mpeg2_qsv_hwaccel_deps="libmfx"

  2444. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2445. mpeg2_vaapi_hwaccel_deps="vaapi"

  2446. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2447. mpeg2_vdpau_hwaccel_deps="vdpau"

  2448. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2449. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2450. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2451. mpeg2_xvmc_hwaccel_deps="xvmc"

  2452. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2453. mpeg4_crystalhd_decoder_select="crystalhd"

  2454. mpeg4_vaapi_hwaccel_deps="vaapi"

  2455. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2456. mpeg4_vdpau_decoder_deps="vdpau"

  2457. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2458. mpeg4_vdpau_hwaccel_deps="vdpau"

  2459. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2460. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2461. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2462. msmpeg4_crystalhd_decoder_select="crystalhd"

  2463. vc1_crystalhd_decoder_select="crystalhd"

  2464. vc1_d3d11va_hwaccel_deps="d3d11va"

  2465. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2466. vc1_dxva2_hwaccel_deps="dxva2"

  2467. vc1_dxva2_hwaccel_select="vc1_decoder"

  2468. vc1_vaapi_hwaccel_deps="vaapi"

  2469. vc1_vaapi_hwaccel_select="vc1_decoder"

  2470. vc1_vdpau_decoder_deps="vdpau"

  2471. vc1_vdpau_decoder_select="vc1_decoder"

  2472. vc1_vdpau_hwaccel_deps="vdpau"

  2473. vc1_vdpau_hwaccel_select="vc1_decoder"

  2474. vc1_qsv_hwaccel_deps="libmfx"

  2475. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2476. wmv3_crystalhd_decoder_select="crystalhd"

  2477. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2478. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2479. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2480. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2481. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2482. 

  2483. # parsers

  2484. h264_parser_select="h264_decoder"

  2485. hevc_parser_select="golomb"

  2486. mpegvideo_parser_select="mpegvideo"

  2487. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2488. vc1_parser_select="mpegvideo startcode vc1_decoder"

  2489. 

  2490. # bitstream_filters

  2491. mjpeg2jpeg_bsf_select="jpegtables"

  2492. 

  2493. # external libraries

  2494. libaacplus_encoder_deps="libaacplus"

  2495. libcelt_decoder_deps="libcelt"

  2496. libdcadec_decoder_deps="libdcadec"

  2497. libfaac_encoder_deps="libfaac"

  2498. libfaac_encoder_select="audio_frame_queue"

  2499. libfdk_aac_decoder_deps="libfdk_aac"

  2500. libfdk_aac_encoder_deps="libfdk_aac"

  2501. libfdk_aac_encoder_select="audio_frame_queue"

  2502. libgme_demuxer_deps="libgme"

  2503. libgsm_decoder_deps="libgsm"

  2504. libgsm_encoder_deps="libgsm"

  2505. libgsm_ms_decoder_deps="libgsm"

  2506. libgsm_ms_encoder_deps="libgsm"

  2507. libilbc_decoder_deps="libilbc"

  2508. libilbc_encoder_deps="libilbc"

  2509. libkvazaar_encoder_deps="libkvazaar"

  2510. libmodplug_demuxer_deps="libmodplug"

  2511. libmp3lame_encoder_deps="libmp3lame"

  2512. libmp3lame_encoder_select="audio_frame_queue"

  2513. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2514. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2515. libopencore_amrnb_encoder_select="audio_frame_queue"

  2516. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2517. libopenh264_encoder_deps="libopenh264"

  2518. libopenjpeg_decoder_deps="libopenjpeg"

  2519. libopenjpeg_encoder_deps="libopenjpeg"

  2520. libopus_decoder_deps="libopus"

  2521. libopus_encoder_deps="libopus"

  2522. libopus_encoder_select="audio_frame_queue"

  2523. libquvi_demuxer_deps="libquvi"

  2524. libschroedinger_decoder_deps="libschroedinger"

  2525. libschroedinger_encoder_deps="libschroedinger"

  2526. libshine_encoder_deps="libshine"

  2527. libshine_encoder_select="audio_frame_queue"

  2528. libspeex_decoder_deps="libspeex"

  2529. libspeex_encoder_deps="libspeex"

  2530. libspeex_encoder_select="audio_frame_queue"

  2531. libstagefright_h264_decoder_deps="libstagefright_h264"

  2532. libtheora_encoder_deps="libtheora"

  2533. libtwolame_encoder_deps="libtwolame"

  2534. libvo_aacenc_encoder_deps="libvo_aacenc"

  2535. libvo_aacenc_encoder_select="audio_frame_queue"

  2536. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2537. libvorbis_decoder_deps="libvorbis"

  2538. libvorbis_encoder_deps="libvorbis"

  2539. libvorbis_encoder_select="audio_frame_queue"

  2540. libvpx_vp8_decoder_deps="libvpx"

  2541. libvpx_vp8_encoder_deps="libvpx"

  2542. libvpx_vp9_decoder_deps="libvpx"

  2543. libvpx_vp9_encoder_deps="libvpx"

  2544. libwavpack_encoder_deps="libwavpack"

  2545. libwebp_encoder_deps="libwebp"

  2546. libwebp_anim_encoder_deps="libwebp"

  2547. libx262_encoder_deps="libx262"

  2548. libx264_encoder_deps="libx264"

  2549. libx264rgb_encoder_deps="libx264"

  2550. libx264rgb_encoder_select="libx264_encoder"

  2551. libx265_encoder_deps="libx265"

  2552. libxavs_encoder_deps="libxavs"

  2553. libxvid_encoder_deps="libxvid"

  2554. libutvideo_decoder_deps="libutvideo"

  2555. libutvideo_encoder_deps="libutvideo"

  2556. libzvbi_teletext_decoder_deps="libzvbi"

  2557. nvenc_encoder_deps="nvenc"

  2558. nvenc_h264_encoder_deps="nvenc"

  2559. nvenc_hevc_encoder_deps="nvenc"

  2560. 

  2561. # demuxers / muxers

  2562. ac3_demuxer_select="ac3_parser"

  2563. asf_demuxer_select="riffdec"

  2564. asf_o_demuxer_select="riffdec"

  2565. asf_muxer_select="riffenc"

  2566. asf_stream_muxer_select="asf_muxer"

  2567. avi_demuxer_select="riffdec exif"

  2568. avi_muxer_select="riffenc"

  2569. avisynth_demuxer_deps="avisynth"

  2570. avisynth_demuxer_select="riffdec"

  2571. caf_demuxer_select="riffdec"

  2572. dash_muxer_select="mp4_muxer"

  2573. dirac_demuxer_select="dirac_parser"

  2574. dts_demuxer_select="dca_parser"

  2575. dtshd_demuxer_select="dca_parser"

  2576. dv_demuxer_select="dvprofile"

  2577. dv_muxer_select="dvprofile"

  2578. dxa_demuxer_select="riffdec"

  2579. eac3_demuxer_select="ac3_parser"

  2580. f4v_muxer_select="mov_muxer"

  2581. flac_demuxer_select="flac_parser"

  2582. hds_muxer_select="flv_muxer"

  2583. hls_muxer_select="mpegts_muxer"

  2584. image2_alias_pix_demuxer_select="image2_demuxer"

  2585. image2_brender_pix_demuxer_select="image2_demuxer"

  2586. ipod_muxer_select="mov_muxer"

  2587. ismv_muxer_select="mov_muxer"

  2588. libnut_demuxer_deps="libnut"

  2589. libnut_muxer_deps="libnut"

  2590. matroska_audio_muxer_select="matroska_muxer"

  2591. matroska_demuxer_select="riffdec"

  2592. matroska_demuxer_suggest="bzlib lzo zlib"

  2593. matroska_muxer_select="riffenc"

  2594. mmf_muxer_select="riffenc"

  2595. mov_demuxer_select="riffdec"

  2596. mov_demuxer_suggest="zlib"

  2597. mov_muxer_select="riffenc rtpenc_chain"

  2598. mp3_demuxer_select="mpegaudio_parser"

  2599. mp4_muxer_select="mov_muxer"

  2600. mpegts_muxer_select="adts_muxer latm_muxer"

  2601. mpegtsraw_demuxer_select="mpegts_demuxer"

  2602. mxf_d10_muxer_select="mxf_muxer"

  2603. mxf_opatom_muxer_select="mxf_muxer"

  2604. nut_muxer_select="riffenc"

  2605. nuv_demuxer_select="riffdec"

  2606. oga_muxer_select="ogg_muxer"

  2607. ogg_demuxer_select="golomb"

  2608. opus_muxer_select="ogg_muxer"

  2609. psp_muxer_select="mov_muxer"

  2610. rtp_demuxer_select="sdp_demuxer"

  2611. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"

  2612. rtsp_demuxer_select="http_protocol rtpdec"

  2613. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2614. sap_demuxer_select="sdp_demuxer"

  2615. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2616. sdp_demuxer_select="rtpdec"

  2617. smoothstreaming_muxer_select="ismv_muxer"

  2618. spdif_muxer_select="aac_parser"

  2619. spx_muxer_select="ogg_muxer"

  2620. tak_demuxer_select="tak_parser"

  2621. tg2_muxer_select="mov_muxer"

  2622. tgp_muxer_select="mov_muxer"

  2623. vobsub_demuxer_select="mpegps_demuxer"

  2624. w64_demuxer_select="wav_demuxer"

  2625. w64_muxer_select="wav_muxer"

  2626. wav_demuxer_select="riffdec"

  2627. wav_muxer_select="riffenc"

  2628. webm_muxer_select="riffenc"

  2629. wtv_demuxer_select="riffdec"

  2630. wtv_muxer_select="riffenc"

  2631. xmv_demuxer_select="riffdec"

  2632. xwma_demuxer_select="riffdec"

  2633. 

  2634. # indevs / outdevs

  2635. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2636. alsa_outdev_deps="alsa_asoundlib_h"

  2637. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2638. avfoundation_indev_select="avfoundation"

  2639. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2640. caca_outdev_deps="libcaca"

  2641. decklink_outdev_deps="decklink pthreads"

  2642. decklink_outdev_extralibs="-lstdc++"

  2643. decklink_indev_deps="decklink pthreads"

  2644. decklink_indev_extralibs="-lstdc++"

  2645. dshow_indev_deps="IBaseFilter"

  2646. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2647. dv1394_indev_deps="dv1394"

  2648. dv1394_indev_select="dv_demuxer"

  2649. fbdev_indev_deps="linux_fb_h"

  2650. fbdev_outdev_deps="linux_fb_h"

  2651. gdigrab_indev_deps="CreateDIBSection"

  2652. gdigrab_indev_extralibs="-lgdi32"

  2653. gdigrab_indev_select="bmp_decoder"

  2654. iec61883_indev_deps="libiec61883"

  2655. jack_indev_deps="jack_jack_h sem_timedwait"

  2656. lavfi_indev_deps="avfilter"

  2657. libcdio_indev_deps="libcdio"

  2658. libdc1394_indev_deps="libdc1394"

  2659. libv4l2_indev_deps="libv4l2"

  2660. openal_indev_deps="openal"

  2661. opengl_outdev_deps="opengl"

  2662. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2663. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2664. pulse_indev_deps="libpulse"

  2665. pulse_outdev_deps="libpulse"

  2666. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2667. qtkit_indev_select="qtkit"

  2668. sdl_outdev_deps="sdl"

  2669. sndio_indev_deps="sndio_h"

  2670. sndio_outdev_deps="sndio_h"

  2671. v4l_indev_deps="linux_videodev_h"

  2672. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2673. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2674. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2675. vfwcap_indev_extralibs="-lavicap32"

  2676. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2677. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2678. x11grab_indev_deps="x11grab"

  2679. x11grab_xcb_indev_deps="libxcb"

  2680. 

  2681. # protocols

  2682. async_protocol_deps="pthreads"

  2683. bluray_protocol_deps="libbluray"

  2684. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2685. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2686. ffrtmpcrypt_protocol_select="tcp_protocol"

  2687. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2688. ffrtmphttp_protocol_select="http_protocol"

  2689. ftp_protocol_select="tcp_protocol"

  2690. gopher_protocol_select="network"

  2691. http_protocol_select="tcp_protocol"

  2692. httpproxy_protocol_select="tcp_protocol"

  2693. https_protocol_select="tls_protocol"

  2694. icecast_protocol_select="http_protocol"

  2695. librtmp_protocol_deps="librtmp"

  2696. librtmpe_protocol_deps="librtmp"

  2697. librtmps_protocol_deps="librtmp"

  2698. librtmpt_protocol_deps="librtmp"

  2699. librtmpte_protocol_deps="librtmp"

  2700. libsmbclient_protocol_deps="libsmbclient gplv3"

  2701. libssh_protocol_deps="libssh"

  2702. mmsh_protocol_select="http_protocol"

  2703. mmst_protocol_select="network"

  2704. rtmp_protocol_deps="!librtmp_protocol"

  2705. rtmp_protocol_select="tcp_protocol"

  2706. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2707. rtmps_protocol_deps="!librtmp_protocol"

  2708. rtmps_protocol_select="tls_protocol"

  2709. rtmpt_protocol_select="ffrtmphttp_protocol"

  2710. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2711. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2712. rtp_protocol_select="udp_protocol"

  2713. sctp_protocol_deps="struct_sctp_event_subscribe"

  2714. sctp_protocol_select="network"

  2715. srtp_protocol_select="rtp_protocol"

  2716. tcp_protocol_select="network"

  2717. tls_gnutls_protocol_deps="gnutls !tls_securetransport_protocol"

  2718. tls_gnutls_protocol_select="tcp_protocol"

  2719. tls_openssl_protocol_deps="openssl !tls_securetransport_protocol !tls_gnutls_protocol"

  2720. tls_openssl_protocol_select="tcp_protocol"

  2721. tls_securetransport_protocol_deps="securetransport"

  2722. tls_securetransport_protocol_select="tcp_protocol"

  2723. tls_protocol_deps_any="tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  2724. udp_protocol_select="network"

  2725. udplite_protocol_select="network"

  2726. unix_protocol_deps="sys_un_h"

  2727. unix_protocol_select="network"

  2728. 

  2729. # filters

  2730. amovie_filter_deps="avcodec avformat"

  2731. aresample_filter_deps="swresample"

  2732. ass_filter_deps="libass"

  2733. asyncts_filter_deps="avresample"

  2734. atempo_filter_deps="avcodec"

  2735. atempo_filter_select="rdft"

  2736. azmq_filter_deps="libzmq"

  2737. blackframe_filter_deps="gpl"

  2738. boxblur_filter_deps="gpl"

  2739. bs2b_filter_deps="libbs2b"

  2740. colormatrix_filter_deps="gpl"

  2741. cover_rect_filter_deps="avcodec avformat gpl"

  2742. cropdetect_filter_deps="gpl"

  2743. delogo_filter_deps="gpl"

  2744. deshake_filter_select="pixelutils"

  2745. drawtext_filter_deps="libfreetype"

  2746. dynaudnorm_filter_deps="copysign erf"

  2747. ebur128_filter_deps="gpl"

  2748. eq_filter_deps="gpl"

  2749. fftfilt_filter_deps="avcodec"

  2750. fftfilt_filter_select="rdft"

  2751. flite_filter_deps="libflite"

  2752. find_rect_filter_deps="avcodec avformat gpl"

  2753. frei0r_filter_deps="frei0r dlopen"

  2754. frei0r_src_filter_deps="frei0r dlopen"

  2755. fspp_filter_deps="gpl"

  2756. geq_filter_deps="gpl"

  2757. histeq_filter_deps="gpl"

  2758. hqdn3d_filter_deps="gpl"

  2759. interlace_filter_deps="gpl"

  2760. kerndeint_filter_deps="gpl"

  2761. ladspa_filter_deps="ladspa dlopen"

  2762. mcdeint_filter_deps="avcodec gpl"

  2763. movie_filter_deps="avcodec avformat"

  2764. mpdecimate_filter_deps="gpl"

  2765. mpdecimate_filter_select="pixelutils"

  2766. mptestsrc_filter_deps="gpl"

  2767. negate_filter_deps="lut_filter"

  2768. perspective_filter_deps="gpl"

  2769. pp7_filter_deps="gpl"

  2770. ocv_filter_deps="libopencv"

  2771. owdenoise_filter_deps="gpl"

  2772. pan_filter_deps="swresample"

  2773. phase_filter_deps="gpl"

  2774. pp_filter_deps="gpl postproc"

  2775. pullup_filter_deps="gpl"

  2776. removelogo_filter_deps="avcodec avformat swscale"

  2777. repeatfields_filter_deps="gpl"

  2778. resample_filter_deps="avresample"

  2779. sab_filter_deps="gpl swscale"

  2780. scale_filter_deps="swscale"

  2781. scale2ref_filter_deps="swscale"

  2782. select_filter_select="pixelutils"

  2783. smartblur_filter_deps="gpl swscale"

  2784. showcqt_filter_deps="avcodec"

  2785. showcqt_filter_select="fft"

  2786. showfreqs_filter_deps="avcodec"

  2787. showfreqs_filter_select="fft"

  2788. showspectrum_filter_deps="avcodec"

  2789. showspectrum_filter_select="rdft"

  2790. spp_filter_deps="gpl avcodec"

  2791. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  2792. stereo3d_filter_deps="gpl"

  2793. subtitles_filter_deps="avformat avcodec libass"

  2794. super2xsai_filter_deps="gpl"

  2795. tinterlace_filter_deps="gpl"

  2796. vidstabdetect_filter_deps="libvidstab"

  2797. vidstabtransform_filter_deps="libvidstab"

  2798. pixfmts_super2xsai_test_deps="super2xsai_filter"

  2799. tinterlace_merge_test_deps="tinterlace_filter"

  2800. tinterlace_pad_test_deps="tinterlace_filter"

  2801. uspp_filter_deps="gpl avcodec"

  2802. zmq_filter_deps="libzmq"

  2803. zoompan_filter_deps="swscale"

  2804. 

  2805. # examples

  2806. avio_reading="avformat avcodec avutil"

  2807. avio_dir_cmd="avformat avutil"

  2808. avcodec_example_deps="avcodec avutil"

  2809. decoding_encoding_example_deps="avcodec avformat avutil"

  2810. demuxing_decoding_example_deps="avcodec avformat avutil"

  2811. extract_mvs_example_deps="avcodec avformat avutil"

  2812. filter_audio_example_deps="avfilter avutil"

  2813. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  2814. filtering_video_example_deps="avfilter avcodec avformat avutil"

  2815. metadata_example_deps="avformat avutil"

  2816. muxing_example_deps="avcodec avformat avutil swscale"

  2817. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  2818. remuxing_example_deps="avcodec avformat avutil"

  2819. resampling_audio_example_deps="avutil swresample"

  2820. scaling_video_example_deps="avutil swscale"

  2821. transcode_aac_example_deps="avcodec avformat swresample"

  2822. transcoding_example_deps="avfilter avcodec avformat avutil"

  2823. 

  2824. # libraries, in linking order

  2825. avcodec_deps="avutil"

  2826. avdevice_deps="avformat avcodec avutil"

  2827. avfilter_deps="avutil"

  2828. avformat_deps="avcodec avutil"

  2829. avresample_deps="avutil"

  2830. postproc_deps="avutil gpl"

  2831. swresample_deps="avutil"

  2832. swscale_deps="avutil"

  2833. 

  2834. # programs

  2835. ffmpeg_deps="avcodec avfilter avformat swresample"

  2836. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  2837.                null_filter

  2838.                setpts_filter trim_filter"

  2839. ffplay_deps="avcodec avformat swscale swresample sdl"

  2840. ffplay_libs='$sdl_libs'

  2841. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  2842. ffprobe_deps="avcodec avformat"

  2843. ffserver_deps="avformat fork sarestart"

  2844. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  2845. 

  2846. # documentation

  2847. podpages_deps="perl"

  2848. manpages_deps="perl pod2man"

  2849. htmlpages_deps="perl"

  2850. htmlpages_deps_any="makeinfo_html texi2html"

  2851. txtpages_deps="perl makeinfo"

  2852. doc_deps_any="manpages htmlpages podpages txtpages"

  2853. 

  2854. # default parameters

  2855. 

  2856. logfile="config.log"

  2857. 

  2858. # installation paths

  2859. prefix_default="/usr/local"

  2860. bindir_default='${prefix}/bin'

  2861. datadir_default='${prefix}/share/ffmpeg'

  2862. docdir_default='${prefix}/share/doc/ffmpeg'

  2863. incdir_default='${prefix}/include'

  2864. libdir_default='${prefix}/lib'

  2865. mandir_default='${prefix}/share/man'

  2866. 

  2867. # toolchain

  2868. ar_default="ar"

  2869. cc_default="gcc"

  2870. cxx_default="g++"

  2871. host_cc_default="gcc"

  2872. cp_f="cp -f"

  2873. doxygen_default="doxygen"

  2874. install="install"

  2875. ln_s="ln -s -f"

  2876. nm_default="nm -g"

  2877. objformat="elf"

  2878. pkg_config_default=pkg-config

  2879. ranlib_default="ranlib"

  2880. strip_default="strip"

  2881. yasmexe_default="yasm"

  2882. windres_default="windres"

  2883. 

  2884. # OS

  2885. target_os_default=$(tolower $(uname -s))

  2886. host_os=$target_os_default

  2887. 

  2888. # machine

  2889. if test "$target_os_default" = aix; then

  2890.     arch_default=$(uname -p)

  2891.     strip_default="strip -X32_64"

  2892. else

  2893.     arch_default=$(uname -m)

  2894. fi

  2895. cpu="generic"

  2896. intrinsics="none"

  2897. 

  2898. # configurable options

  2899. enable $PROGRAM_LIST

  2900. enable $DOCUMENT_LIST

  2901. enable $EXAMPLE_LIST

  2902. enable $(filter_out avresample $LIBRARY_LIST)

  2903. enable stripping

  2904. 

  2905. enable asm

  2906. enable debug

  2907. enable doc

  2908. enable faan faandct faanidct

  2909. enable optimizations

  2910. enable runtime_cpudetect

  2911. enable safe_bitstream_reader

  2912. enable static

  2913. enable swscale_alpha

  2914. enable valgrind_backtrace

  2915. 

  2916. sws_max_filter_size_default=256

  2917. set_default sws_max_filter_size

  2918. 

  2919. # Enable hwaccels by default.

  2920. enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc

  2921. enable xlib

  2922. 

  2923. # build settings

  2924. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  2925. LIBPREF="lib"

  2926. LIBSUF=".a"

  2927. FULLNAME='$(NAME)$(BUILDSUF)'

  2928. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  2929. SLIBPREF="lib"

  2930. SLIBSUF=".so"

  2931. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  2932. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  2933. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  2934. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  2935. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  2936. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  2937. 

  2938. asflags_filter=echo

  2939. cflags_filter=echo

  2940. ldflags_filter=echo

  2941. 

  2942. AS_C='-c'

  2943. AS_O='-o $@'

  2944. CC_C='-c'

  2945. CC_E='-E -o $@'

  2946. CC_O='-o $@'

  2947. CXX_C='-c'

  2948. CXX_O='-o $@'

  2949. LD_O='-o $@'

  2950. LD_LIB='-l%'

  2951. LD_PATH='-L'

  2952. HOSTCC_C='-c'

  2953. HOSTCC_E='-E -o $@'

  2954. HOSTCC_O='-o $@'

  2955. HOSTLD_O='-o $@'

  2956. 

  2957. host_libs='-lm'

  2958. host_cflags_filter=echo

  2959. host_ldflags_filter=echo

  2960. 

  2961. target_path='$(CURDIR)'

  2962. 

  2963. # since the object filename is not given with the -MM flag, the compiler

  2964. # is only able to print the basename, and we must add the path ourselves

  2965. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'

  2966. DEPFLAGS='-MM'

  2967. 

  2968. # find source path

  2969. if test -f configure; then

  2970.     source_path=.

  2971. else

  2972.     source_path=$(cd $(dirname "$0"); pwd)

  2973.     case "$source_path" in

  2974.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  2975.     esac

  2976.     test -e "$source_path/config.h" &&

  2977.         die "Out of tree builds are impossible with config.h in source dir."

  2978. fi

  2979. 

  2980. for v in "$@"; do

  2981.     r=${v#*=}

  2982.     l=${v%"$r"}

  2983.     r=$(sh_quote "$r")

  2984.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  2985. done

  2986. 

  2987. find_things(){

  2988.     thing=$1

  2989.     pattern=$2

  2990.     file=$source_path/$3

  2991.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  2992. }

  2993. 

  2994. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  2995. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  2996. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  2997. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  2998. BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)

  2999. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3000. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3001. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3002. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3003. PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)

  3004. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3005. 

  3006. ALL_COMPONENTS="

  3007.     $BSF_LIST

  3008.     $DECODER_LIST

  3009.     $DEMUXER_LIST

  3010.     $ENCODER_LIST

  3011.     $FILTER_LIST

  3012.     $HWACCEL_LIST

  3013.     $INDEV_LIST

  3014.     $MUXER_LIST

  3015.     $OUTDEV_LIST

  3016.     $PARSER_LIST

  3017.     $PROTOCOL_LIST

  3018. "

  3019. 

  3020. for n in $COMPONENT_LIST; do

  3021.     v=$(toupper ${n%s})_LIST

  3022.     eval enable \$$v

  3023.     eval ${n}_if_any="\$$v"

  3024. done

  3025. 

  3026. enable $ARCH_EXT_LIST

  3027. 

  3028. die_unknown(){

  3029.     echo "Unknown option \"$1\"."

  3030.     echo "See $0 --help for available options."

  3031.     exit 1

  3032. }

  3033. 

  3034. print_3_columns() {

  3035.     cat | tr ' ' '\n' | sort | pr -r -3 -t

  3036. }

  3037. 

  3038. show_list() {

  3039.     suffix=_$1

  3040.     shift

  3041.     echo $* | sed s/$suffix//g | print_3_columns

  3042.     exit 0

  3043. }

  3044. 

  3045. rand_list(){

  3046.     IFS=', '

  3047.     set -- $*

  3048.     unset IFS

  3049.     for thing; do

  3050.         comp=${thing%:*}

  3051.         prob=${thing#$comp}

  3052.         prob=${prob#:}

  3053.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3054.         echo "prob ${prob:-0.5}"

  3055.         printf '%s\n' $comp

  3056.     done

  3057. }

  3058. 

  3059. do_random(){

  3060.     action=$1

  3061.     shift

  3062.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3063.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3064. }

  3065. 

  3066. for opt do

  3067.     optval="${opt#*=}"

  3068.     case "$opt" in

  3069.         --extra-ldflags=*)

  3070.             add_ldflags $optval

  3071.         ;;

  3072.         --extra-ldexeflags=*)

  3073.             add_ldexeflags $optval

  3074.         ;;

  3075.         --extra-ldlibflags=*)

  3076.             add_ldlibflags $optval

  3077.         ;;

  3078.         --extra-libs=*)

  3079.             add_extralibs $optval

  3080.         ;;

  3081.         --disable-devices)

  3082.             disable $INDEV_LIST $OUTDEV_LIST

  3083.         ;;

  3084.         --enable-debug=*)

  3085.             debuglevel="$optval"

  3086.         ;;

  3087.         --disable-programs)

  3088.             disable $PROGRAM_LIST

  3089.         ;;

  3090.         --disable-everything)

  3091.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3092.         ;;

  3093.         --disable-all)

  3094.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3095.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3096.         ;;

  3097.         --enable-random|--disable-random)

  3098.             action=${opt%%-random}

  3099.             do_random ${action#--} $COMPONENT_LIST

  3100.         ;;

  3101.         --enable-random=*|--disable-random=*)

  3102.             action=${opt%%-random=*}

  3103.             do_random ${action#--} $optval

  3104.         ;;

  3105.         --enable-*=*|--disable-*=*)

  3106.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3107.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3108.             eval list=\$$(toupper $thing)_LIST

  3109.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3110.             list=$(filter "$name" $list)

  3111.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3112.             $action $list

  3113.         ;;

  3114.         --enable-?*|--disable-?*)

  3115.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3116.             if is_in $option $COMPONENT_LIST; then

  3117.                 test $action = disable && action=unset

  3118.                 eval $action \$$(toupper ${option%s})_LIST

  3119.             elif is_in $option $CMDLINE_SELECT; then

  3120.                 $action $option

  3121.             else

  3122.                 die_unknown $opt

  3123.             fi

  3124.         ;;

  3125.         --list-*)

  3126.             NAME="${opt#--list-}"

  3127.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3128.             NAME=${NAME%s}

  3129.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3130.         ;;

  3131.         --help|-h) show_help

  3132.         ;;

  3133.         --fatal-warnings) enable fatal_warnings

  3134.         ;;

  3135.         *)

  3136.             optname="${opt%%=*}"

  3137.             optname="${optname#--}"

  3138.             optname=$(echo "$optname" | sed 's/-/_/g')

  3139.             if is_in $optname $CMDLINE_SET; then

  3140.                 eval $optname='$optval'

  3141.             elif is_in $optname $CMDLINE_APPEND; then

  3142.                 append $optname "$optval"

  3143.             else

  3144.                 die_unknown $opt

  3145.             fi

  3146.         ;;

  3147.     esac

  3148. done

  3149. 

  3150. for e in $env; do

  3151.     eval "export $e"

  3152. done

  3153. 

  3154. disabled logging && logfile=/dev/null

  3155. 

  3156. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3157. set >> $logfile

  3158. 

  3159. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3160. 

  3161. case "$toolchain" in

  3162.     clang-asan)

  3163.         cc_default="clang"

  3164.         add_cflags  -fsanitize=address

  3165.         add_ldflags -fsanitize=address

  3166.     ;;

  3167.     clang-tsan)

  3168.         cc_default="clang"

  3169.         add_cflags  -fsanitize=thread -pie

  3170.         add_ldflags -fsanitize=thread -pie

  3171.     ;;

  3172.     clang-usan)

  3173.         cc_default="clang"

  3174.         add_cflags  -fsanitize=undefined

  3175.         add_ldflags -fsanitize=undefined

  3176.     ;;

  3177.     gcc-asan)

  3178.         cc_default="gcc"

  3179.         add_cflags  -fsanitize=address

  3180.         add_ldflags -fsanitize=address

  3181.     ;;

  3182.     gcc-tsan)

  3183.         cc_default="gcc"

  3184.         add_cflags  -fsanitize=thread -pie -fPIC

  3185.         add_ldflags -fsanitize=thread -pie -fPIC

  3186.     ;;

  3187.     gcc-usan)

  3188.         cc_default="gcc"

  3189.         add_cflags  -fsanitize=undefined

  3190.         add_ldflags -fsanitize=undefined

  3191.     ;;

  3192.     valgrind-massif)

  3193.         target_exec_default=${valgrind:-"valgrind"}

  3194.         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"

  3195.     ;;

  3196.     valgrind-memcheck)

  3197.         target_exec_default=${valgrind:-"valgrind"}

  3198.         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"

  3199.     ;;

  3200.     msvc)

  3201.         # Check whether the current MSVC version needs the C99 converter.

  3202.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3203.         # support enough of C99 to build ffmpeg. Default to the new

  3204.         # behaviour if the regexp was unable to match anything, since this

  3205.         # successfully parses the version number of existing supported

  3206.         # versions that require the converter (MSVC 2010 and 2012).

  3207.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3208.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3209.             cc_default="cl"

  3210.         else

  3211.             cc_default="c99wrap cl"

  3212.         fi

  3213.         ld_default="$source_path/compat/windows/mslink"

  3214.         nm_default="dumpbin -symbols"

  3215.         ar_default="lib"

  3216.         case "$arch" in

  3217.         arm*)

  3218.             as_default="armasm"

  3219.             ;;

  3220.         esac

  3221.         target_os_default="win32"

  3222.         # Use a relative path for TMPDIR. This makes sure all the

  3223.         # ffconf temp files are written with a relative path, avoiding

  3224.         # issues with msys/win32 path conversion for MSVC parameters

  3225.         # such as -Fo<file> or -out:<file>.

  3226.         TMPDIR=.

  3227.     ;;

  3228.     icl)

  3229.         cc_default="icl"

  3230.         ld_default="xilink"

  3231.         nm_default="dumpbin -symbols"

  3232.         ar_default="xilib"

  3233.         target_os_default="win32"

  3234.         TMPDIR=.

  3235.     ;;

  3236.     gcov)

  3237.         add_cflags  -fprofile-arcs -ftest-coverage

  3238.         add_ldflags -fprofile-arcs -ftest-coverage

  3239.     ;;

  3240.     hardened)

  3241.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3242.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3243.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3244.     ;;

  3245.     ?*)

  3246.         die "Unknown toolchain $toolchain"

  3247.     ;;

  3248. esac

  3249. 

  3250. test -n "$cross_prefix" && enable cross_compile

  3251. 

  3252. if enabled cross_compile; then

  3253.     test -n "$arch" && test -n "$target_os" ||

  3254.         die "Must specify target arch and OS when cross-compiling"

  3255. fi

  3256. 

  3257. ar_default="${cross_prefix}${ar_default}"

  3258. cc_default="${cross_prefix}${cc_default}"

  3259. cxx_default="${cross_prefix}${cxx_default}"

  3260. nm_default="${cross_prefix}${nm_default}"

  3261. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3262. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3263.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3264. else

  3265.     ranlib_default="${cross_prefix}${ranlib_default}"

  3266. fi

  3267. strip_default="${cross_prefix}${strip_default}"

  3268. windres_default="${cross_prefix}${windres_default}"

  3269. 

  3270. sysinclude_default="${sysroot}/usr/include"

  3271. 

  3272. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3273.     target_exec target_os yasmexe

  3274. enabled cross_compile || host_cc_default=$cc

  3275. set_default host_cc

  3276. 

  3277. pkg_config_fail_message=""

  3278. if ! $pkg_config --version >/dev/null 2>&1; then

  3279.     warn "$pkg_config not found, library detection may fail."

  3280.     pkg_config=false

  3281. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3282.     pkg_config_fail_message="

  3283. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3284. fi

  3285. 

  3286. if test $doxygen != $doxygen_default && \

  3287.   ! $doxygen --version >/dev/null 2>&1; then

  3288.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3289. fi

  3290. 

  3291. exesuf() {

  3292.     case $1 in

  3293.         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3294.     esac

  3295. }

  3296. 

  3297. EXESUF=$(exesuf $target_os)

  3298. HOSTEXESUF=$(exesuf $host_os)

  3299. 

  3300. # set temporary file name

  3301. : ${TMPDIR:=$TEMPDIR}

  3302. : ${TMPDIR:=$TMP}

  3303. : ${TMPDIR:=/tmp}

  3304. 

  3305. if [ -n "$tempprefix" ] ; then

  3306.     mktemp(){

  3307.         echo $tempprefix.${HOSTNAME}.${UID}

  3308.     }

  3309. elif ! check_cmd mktemp -u XXXXXX; then

  3310.     # simple replacement for missing mktemp

  3311.     # NOT SAFE FOR GENERAL USE

  3312.     mktemp(){

  3313.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3314.     }

  3315. fi

  3316. 

  3317. tmpfile(){

  3318.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3319.         (set -C; exec > $tmp) 2>/dev/null ||

  3320.         die "Unable to create temporary file in $TMPDIR."

  3321.     append TMPFILES $tmp

  3322.     eval $1=$tmp

  3323. }

  3324. 

  3325. trap 'rm -f -- $TMPFILES' EXIT

  3326. 

  3327. tmpfile TMPASM .asm

  3328. tmpfile TMPC   .c

  3329. tmpfile TMPCPP .cpp

  3330. tmpfile TMPE   $EXESUF

  3331. tmpfile TMPH   .h

  3332. tmpfile TMPM   .m

  3333. tmpfile TMPO   .o

  3334. tmpfile TMPS   .S

  3335. tmpfile TMPSH  .sh

  3336. tmpfile TMPV   .ver

  3337. 

  3338. unset -f mktemp

  3339. 

  3340. chmod +x $TMPE

  3341. 

  3342. # make sure we can execute files in $TMPDIR

  3343. cat > $TMPSH 2>> $logfile <<EOF

  3344. #! /bin/sh

  3345. EOF

  3346. chmod +x $TMPSH >> $logfile 2>&1

  3347. if ! $TMPSH >> $logfile 2>&1; then

  3348.     cat <<EOF

  3349. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3350. variable to another directory and make sure that it is not mounted noexec.

  3351. EOF

  3352.     die "Sanity test failed."

  3353. fi

  3354. 

  3355. armasm_flags(){

  3356.     for flag; do

  3357.         case $flag in

  3358.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3359.             # be passed to gas-preprocessor

  3360.             -M[TD]*)                                            ;;

  3361.             *)                  echo $flag                      ;;

  3362.         esac

  3363.    done

  3364. }

  3365. 

  3366. ccc_flags(){

  3367.     for flag; do

  3368.         case $flag in

  3369.             -std=c99)           echo -c99                       ;;

  3370.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3371.             -mieee)             echo -ieee                      ;;

  3372.             -O*|-fast)          echo $flag                      ;;

  3373.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3374.             -g)                 echo -g3                        ;;

  3375.             -Wall)              echo -msg_enable level2         ;;

  3376.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3377.             -Wl,*)              echo $flag                      ;;

  3378.             -f*|-W*)                                            ;;

  3379.             *)                  echo $flag                      ;;

  3380.         esac

  3381.    done

  3382. }

  3383. 

  3384. cparser_flags(){

  3385.     for flag; do

  3386.         case $flag in

  3387.             -Wno-switch)             echo -Wno-switch-enum ;;

  3388.             -Wno-format-zero-length) ;;

  3389.             -Wdisabled-optimization) ;;

  3390.             -Wno-pointer-sign)       echo -Wno-other ;;

  3391.             *)                       echo $flag ;;

  3392.         esac

  3393.     done

  3394. }

  3395. 

  3396. msvc_common_flags(){

  3397.     for flag; do

  3398.         case $flag in

  3399.             # In addition to specifying certain flags under the compiler

  3400.             # specific filters, they must be specified here as well or else the

  3401.             # generic catch all at the bottom will print the original flag.

  3402.             -Wall)                ;;

  3403.             -std=c99)             ;;

  3404.             # Common flags

  3405.             -fomit-frame-pointer) ;;

  3406.             -g)                   echo -Z7 ;;

  3407.             -fno-math-errno)      ;;

  3408.             -fno-common)          ;;

  3409.             -fno-signed-zeros)    ;;

  3410.             -fPIC)                ;;

  3411.             -mthumb)              ;;

  3412.             -march=*)             ;;

  3413.             -lz)                  echo zlib.lib ;;

  3414.             -lavifil32)           echo vfw32.lib ;;

  3415.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3416.             -l*)                  echo ${flag#-l}.lib ;;

  3417.             -LARGEADDRESSAWARE)   echo $flag ;;

  3418.             -L*)                  echo -libpath:${flag#-L} ;;

  3419.             *)                    echo $flag ;;

  3420.         esac

  3421.     done

  3422. }

  3423. 

  3424. msvc_flags(){

  3425.     msvc_common_flags "$@"

  3426.     for flag; do

  3427.         case $flag in

  3428.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3429.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3430.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3431.                                        -wd4307 \

  3432.                                        -wd4273 -wd4554 -wd4701 ;;

  3433.         esac

  3434.     done

  3435. }

  3436. 

  3437. icl_flags(){

  3438.     msvc_common_flags "$@"

  3439.     for flag; do

  3440.         case $flag in

  3441.             # Despite what Intel's documentation says -Wall, which is supported

  3442.             # on Windows, does enable remarks so disable them here.

  3443.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3444.             -std=c99)             echo -Qstd=c99 ;;

  3445.             -flto)                echo -ipo ;;

  3446.         esac

  3447.     done

  3448. }

  3449. 

  3450. icc_flags(){

  3451.     for flag; do

  3452.         case $flag in

  3453.             -flto)                echo -ipo ;;

  3454.             *)                    echo $flag ;;

  3455.         esac

  3456.     done

  3457. }

  3458. 

  3459. pgi_flags(){

  3460.     for flag; do

  3461.         case $flag in

  3462.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3463.             -fomit-frame-pointer) echo -Mnoframe ;;

  3464.             -g)                   echo -gopt ;;

  3465.             *)                    echo $flag ;;

  3466.         esac

  3467.     done

  3468. }

  3469. 

  3470. suncc_flags(){

  3471.     for flag; do

  3472.         case $flag in

  3473.             -march=*|-mcpu=*)

  3474.                 case "${flag#*=}" in

  3475.                     native)                   echo -xtarget=native       ;;

  3476.                     v9|niagara)               echo -xarch=sparc          ;;

  3477.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3478.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3479.                     i586|pentium)             echo -xchip=pentium        ;;

  3480.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3481.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3482.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3483.                     pentium4*)          echo -xtarget=pentium4           ;;

  3484.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3485.                     *-sse3)             echo -xarch=sse3                 ;;

  3486.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3487.                     bonnell)                   echo -xarch=ssse3         ;;

  3488.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3489.                     westmere)                  echo -xtarget=westmere    ;;

  3490.                     silvermont)                echo -xarch=sse4_2        ;;

  3491.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3492.                     core-avx*|ivybridge|haswell|broadwell)

  3493.                                                echo -xarch=avx           ;;

  3494.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3495.                     btver1)                    echo -xarch=amdsse4a      ;;

  3496.                     btver2|bdver*)             echo -xarch=avx           ;;

  3497.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3498.                     k8|opteron|athlon64|athlon-fx)

  3499.                                                echo -xarch=sse2a         ;;

  3500.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3501.                 esac

  3502.                 ;;

  3503.             -std=c99)             echo -xc99              ;;

  3504.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3505.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3506.             -W*,*)                echo $flag              ;;

  3507.             -f*-*|-W*|-mimpure-text)                      ;;

  3508.             -shared)              echo -G                 ;;

  3509.             *)                    echo $flag              ;;

  3510.         esac

  3511.     done

  3512. }

  3513. 

  3514. tms470_flags(){

  3515.     for flag; do

  3516.         case $flag in

  3517.             -march=*|-mcpu=*)

  3518.                 case "${flag#*=}" in

  3519.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3520.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3521.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3522.                     armv6*|arm11*)          echo -mv=6   ;;

  3523.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3524.                                             echo -mv=5e  ;;

  3525.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3526.                 esac

  3527.                 ;;

  3528.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3529.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3530.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3531.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3532.             -msoft-float)   echo --float_support=vfplib       ;;

  3533.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3534.             -g)             echo -g -mn                       ;;

  3535.             -pds=*)         echo $flag                        ;;

  3536.             -D*|-I*)        echo $flag                        ;;

  3537.             --gcc|--abi=*)  echo $flag                        ;;

  3538.             -me)            echo $flag                        ;;

  3539.         esac

  3540.     done

  3541. }

  3542. 

  3543. probe_cc(){

  3544.     pfx=$1

  3545.     _cc=$2

  3546.     first=$3

  3547. 

  3548.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3549.     unset _ld_o _ldflags _ld_lib _ld_path

  3550.     unset _depflags _DEPCMD _DEPFLAGS

  3551.     _flags_filter=echo

  3552. 

  3553.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3554.         true # no-op to avoid reading stdin in following checks

  3555.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3556.         _type=llvm_gcc

  3557.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3558.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3559.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3560.         _cflags_speed='-O3'

  3561.         _cflags_size='-Os'

  3562.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3563.         _type=gcc

  3564.         gcc_version=$($_cc --version | head -n1)

  3565.         gcc_basever=$($_cc -dumpversion)

  3566.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3567.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3568.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3569.         case $gcc_basever in

  3570.             2*) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3571.         esac

  3572.         if [ "$first" = true ]; then

  3573.             case $gcc_basever in

  3574.                 4.2*)

  3575.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3576.             esac

  3577.         fi

  3578.         _cflags_speed='-O3'

  3579.         _cflags_size='-Os'

  3580.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3581.         _type=icc

  3582.         _ident=$($_cc --version | head -n1)

  3583.         _depflags='-MMD'

  3584.         _cflags_speed='-O3'

  3585.         _cflags_size='-Os'

  3586.         _cflags_noopt='-O1'

  3587.         _flags_filter=icc_flags

  3588.     elif $_cc -v 2>&1 | grep -q xlc; then

  3589.         _type=xlc

  3590.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3591.         _cflags_speed='-O5'

  3592.         _cflags_size='-O5 -qcompact'

  3593.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3594.         _type=ccc

  3595.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3596.         _DEPFLAGS='-M'

  3597.         _cflags_speed='-fast'

  3598.         _cflags_size='-O1'

  3599.         _flags_filter=ccc_flags

  3600.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3601.         test -d "$sysroot" || die "No valid sysroot specified."

  3602.         _type=armcc

  3603.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3604.         armcc_conf="$PWD/armcc.conf"

  3605.         $_cc --arm_linux_configure                 \

  3606.              --arm_linux_config_file="$armcc_conf" \

  3607.              --configure_sysroot="$sysroot"        \

  3608.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3609.              die "Error creating armcc configuration file."

  3610.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3611.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3612.         as_default="${cross_prefix}gcc"

  3613.         _depflags='-MMD'

  3614.         _cflags_speed='-O3'

  3615.         _cflags_size='-Os'

  3616.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3617.         _type=tms470

  3618.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3619.         _flags='--gcc --abi=eabi -me'

  3620.         _cc_e='-ppl -fe=$@'

  3621.         _cc_o='-fe=$@'

  3622.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3623.         _cflags_speed='-O3 -mf=5'

  3624.         _cflags_size='-O3 -mf=2'

  3625.         _flags_filter=tms470_flags

  3626.     elif $_cc -v 2>&1 | grep -q clang; then

  3627.         _type=clang

  3628.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3629.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3630.         _cflags_speed='-O3'

  3631.         _cflags_size='-Os'

  3632.     elif $_cc -V 2>&1 | grep -q Sun; then

  3633.         _type=suncc

  3634.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3635.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3636.         _DEPFLAGS='-xM1 -xc99'

  3637.         _ldflags='-std=c99'

  3638.         _cflags_speed='-O5'

  3639.         _cflags_size='-O5 -xspace'

  3640.         _flags_filter=suncc_flags

  3641.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3642.         _type=pathscale

  3643.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3644.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3645.         _cflags_speed='-O2'

  3646.         _cflags_size='-Os'

  3647.         _flags_filter='filter_out -Wdisabled-optimization'

  3648.     elif $_cc -v 2>&1 | grep -q Open64; then

  3649.         _type=open64

  3650.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3651.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3652.         _cflags_speed='-O2'

  3653.         _cflags_size='-Os'

  3654.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3655.     elif $_cc -V 2>&1 | grep -q Portland; then

  3656.         _type=pgi

  3657.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3658.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  3659.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  3660.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  3661.         _cflags_noopt="-O"

  3662.         _flags_filter=pgi_flags

  3663.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  3664.         _type=armasm

  3665.         _ident=$($_cc | head -n1)

  3666.         # 4509: "This form of conditional instruction is deprecated"

  3667.         _flags="-nologo -ignore 4509"

  3668.         _flags_filter=armasm_flags

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

  3670.         _type=icl

  3671.         _ident=$($_cc 2>&1 | head -n1)

  3672.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  3673.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  3674.         # versions (tested) as well.

  3675.         _cflags_speed="-O2"

  3676.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  3677.         if $_cc 2>&1 | grep -q Linker; then

  3678.             _ld_o='-out:$@'

  3679.         else

  3680.             _ld_o='-Fe$@'

  3681.         fi

  3682.         _cc_o='-Fo$@'

  3683.         _cc_e='-P'

  3684.         _flags_filter=icl_flags

  3685.         _ld_lib='lib%.a'

  3686.         _ld_path='-libpath:'

  3687.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  3688.         _flags='-nologo -Qdiag-error:4044,10157'

  3689.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  3690.         # with MSVC which enables it by default.

  3691.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  3692.         disable stripping

  3693.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  3694.         _type=msvc

  3695.         _ident=$($_cc 2>&1 | head -n1)

  3696.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  3697.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  3698.         _cflags_speed="-O2"

  3699.         _cflags_size="-O1"

  3700.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  3701.             _ld_o='-out:$@'

  3702.         else

  3703.             _ld_o='-Fe$@'

  3704.         fi

  3705.         _cc_o='-Fo$@'

  3706.         _cc_e='-P -Fi$@'

  3707.         _flags_filter=msvc_flags

  3708.         _ld_lib='lib%.a'

  3709.         _ld_path='-libpath:'

  3710.         _flags='-nologo'

  3711.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS'

  3712.         disable stripping

  3713.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  3714.         _type=cparser

  3715.         _ident=$($_cc --version | head -n1)

  3716.         _depflags='-MMD'

  3717.         _cflags_speed='-O4'

  3718.         _cflags_size='-O2'

  3719.         _flags_filter=cparser_flags

  3720.     fi

  3721. 

  3722.     eval ${pfx}_type=\$_type

  3723.     eval ${pfx}_ident=\$_ident

  3724. }

  3725. 

  3726. set_ccvars(){

  3727.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  3728.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  3729.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  3730. 

  3731.     if [ -n "$_depflags" ]; then

  3732.         eval ${1}_DEPFLAGS=\$_depflags

  3733.     else

  3734.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  3735.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  3736.         eval DEP${1}FLAGS=\$_flags

  3737.     fi

  3738. }

  3739. 

  3740. probe_cc cc "$cc" "true"

  3741. cflags_filter=$_flags_filter

  3742. cflags_speed=$_cflags_speed

  3743. cflags_size=$_cflags_size

  3744. cflags_noopt=$_cflags_noopt

  3745. add_cflags $_flags $_cflags

  3746. cc_ldflags=$_ldflags

  3747. set_ccvars CC

  3748. 

  3749. probe_cc hostcc "$host_cc"

  3750. host_cflags_filter=$_flags_filter

  3751. add_host_cflags  $_flags $_cflags

  3752. set_ccvars HOSTCC

  3753. 

  3754. test -n "$cc_type" && enable $cc_type ||

  3755.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  3756. 

  3757. : ${as_default:=$cc}

  3758. : ${dep_cc_default:=$cc}

  3759. : ${ld_default:=$cc}

  3760. : ${host_ld_default:=$host_cc}

  3761. set_default ar as dep_cc ld host_ld windres

  3762. 

  3763. probe_cc as "$as"

  3764. asflags_filter=$_flags_filter

  3765. add_asflags $_flags $_cflags

  3766. set_ccvars AS

  3767. 

  3768. probe_cc ld "$ld"

  3769. ldflags_filter=$_flags_filter

  3770. add_ldflags $_flags $_ldflags

  3771. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  3772. LD_O=${_ld_o-$LD_O}

  3773. LD_LIB=${_ld_lib-$LD_LIB}

  3774. LD_PATH=${_ld_path-$LD_PATH}

  3775. 

  3776. probe_cc hostld "$host_ld"

  3777. host_ldflags_filter=$_flags_filter

  3778. add_host_ldflags $_flags $_ldflags

  3779. HOSTLD_O=${_ld_o-$HOSTLD_O}

  3780. 

  3781. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  3782.     probe_cc depcc "$dep_cc"

  3783.     CCDEP=${_DEPCMD:-$DEPCMD}

  3784.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  3785.     DEPCCFLAGS=$_flags

  3786. fi

  3787. 

  3788. if $ar 2>&1 | grep -q Microsoft; then

  3789.     arflags="-nologo"

  3790.     ar_o='-out:$@'

  3791. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  3792.     arflags="rq"

  3793.     ar_o='$@'

  3794. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  3795.     arflags='-Xany -r -c'

  3796.     ar_o='$@'

  3797. elif $ar 2>&1 | grep -q "\[D\] "; then

  3798.     arflags="rcD"

  3799.     ar_o='$@'

  3800. else

  3801.     arflags="rc"

  3802.     ar_o='$@'

  3803. fi

  3804. 

  3805. add_cflags $extra_cflags

  3806. add_cxxflags $extra_cxxflags

  3807. add_asflags $extra_cflags

  3808. 

  3809. if test -n "$sysroot"; then

  3810.     case "$cc_type" in

  3811.         gcc|llvm_gcc|clang)

  3812.             add_cppflags --sysroot="$sysroot"

  3813.             add_ldflags --sysroot="$sysroot"

  3814. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  3815.             add_cppflags -isysroot "$sysroot"

  3816.             add_ldflags -isysroot "$sysroot"

  3817.         ;;

  3818.         tms470)

  3819.             add_cppflags -I"$sysinclude"

  3820.             add_ldflags  --sysroot="$sysroot"

  3821.         ;;

  3822.     esac

  3823. fi

  3824. 

  3825. if test "$cpu" = host; then

  3826.     enabled cross_compile &&

  3827.         die "--cpu=host makes no sense when cross-compiling."

  3828. 

  3829.     case "$cc_type" in

  3830.         gcc|llvm_gcc)

  3831.             check_native(){

  3832.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  3833.                 sed -n "/cc1.*$1=/{

  3834.                             s/.*$1=\\([^ ]*\\).*/\\1/

  3835.                             p

  3836.                             q

  3837.                         }" $TMPE

  3838.             }

  3839.             cpu=$(check_native -march || check_native -mcpu)

  3840.         ;;

  3841.     esac

  3842. 

  3843.     test "${cpu:-host}" = host &&

  3844.         die "--cpu=host not supported with compiler $cc"

  3845. fi

  3846. 

  3847. # Deal with common $arch aliases

  3848. case "$arch" in

  3849.     aarch64|arm64)

  3850.         arch="aarch64"

  3851.     ;;

  3852.     arm*|iPad*|iPhone*)

  3853.         arch="arm"

  3854.     ;;

  3855.     mips*|IP*)

  3856.         arch="mips"

  3857.     ;;

  3858.     parisc*|hppa*)

  3859.         arch="parisc"

  3860.     ;;

  3861.     "Power Macintosh"|ppc*|powerpc*)

  3862.         arch="ppc"

  3863.     ;;

  3864.     s390|s390x)

  3865.         arch="s390"

  3866.     ;;

  3867.     sh4|sh)

  3868.         arch="sh4"

  3869.     ;;

  3870.     sun4u|sparc*)

  3871.         arch="sparc"

  3872.     ;;

  3873.     tilegx|tile-gx)

  3874.         arch="tilegx"

  3875.     ;;

  3876.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  3877.         arch="x86"

  3878.     ;;

  3879. esac

  3880. 

  3881. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  3882. enable $arch

  3883. 

  3884. # Add processor-specific flags

  3885. if enabled aarch64; then

  3886. 

  3887.     case $cpu in

  3888.         armv*)

  3889.             cpuflags="-march=$cpu"

  3890.         ;;

  3891.         *)

  3892.             cpuflags="-mcpu=$cpu"

  3893.         ;;

  3894.     esac

  3895. 

  3896. elif enabled alpha; then

  3897. 

  3898.     cpuflags="-mcpu=$cpu"

  3899. 

  3900. elif enabled arm; then

  3901. 

  3902.     check_arm_arch() {

  3903.         check_cpp_condition stddef.h \

  3904.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  3905.             $cpuflags

  3906.     }

  3907. 

  3908.     probe_arm_arch() {

  3909.         if   check_arm_arch 4;        then echo armv4;

  3910.         elif check_arm_arch 4T;       then echo armv4t;

  3911.         elif check_arm_arch 5;        then echo armv5;

  3912.         elif check_arm_arch 5E;       then echo armv5e;

  3913.         elif check_arm_arch 5T;       then echo armv5t;

  3914.         elif check_arm_arch 5TE;      then echo armv5te;

  3915.         elif check_arm_arch 5TEJ;     then echo armv5te;

  3916.         elif check_arm_arch 6;        then echo armv6;

  3917.         elif check_arm_arch 6J;       then echo armv6j;

  3918.         elif check_arm_arch 6K;       then echo armv6k;

  3919.         elif check_arm_arch 6Z;       then echo armv6z;

  3920.         elif check_arm_arch 6ZK;      then echo armv6zk;

  3921.         elif check_arm_arch 6T2;      then echo armv6t2;

  3922.         elif check_arm_arch 7;        then echo armv7;

  3923.         elif check_arm_arch 7A  7_A;  then echo armv7-a;

  3924.         elif check_arm_arch 7S;       then echo armv7-a;

  3925.         elif check_arm_arch 7R  7_R;  then echo armv7-r;

  3926.         elif check_arm_arch 7M  7_M;  then echo armv7-m;

  3927.         elif check_arm_arch 7EM 7E_M; then echo armv7-m;

  3928.         elif check_arm_arch 8A  8_A;  then echo armv8-a;

  3929.         fi

  3930.     }

  3931. 

  3932.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  3933. 

  3934.     case $cpu in

  3935.         armv*)

  3936.             cpuflags="-march=$cpu"

  3937.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  3938.         ;;

  3939.         *)

  3940.             cpuflags="-mcpu=$cpu"

  3941.             case $cpu in

  3942.                 cortex-a*)                               subarch=armv7a  ;;

  3943.                 cortex-r*)                               subarch=armv7r  ;;

  3944.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  3945.                 arm11*)                                  subarch=armv6   ;;

  3946.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  3947.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  3948.                 *)                             subarch=$(probe_arm_arch) ;;

  3949.             esac

  3950.         ;;

  3951.     esac

  3952. 

  3953.     case "$subarch" in

  3954.         armv5t*)    enable fast_clz                ;;

  3955.         armv[6-8]*)

  3956.             enable fast_clz

  3957.             disabled fast_unaligned || enable fast_unaligned

  3958.             ;;

  3959.     esac

  3960. 

  3961. elif enabled avr32; then

  3962. 

  3963.     case $cpu in

  3964.         ap7[02]0[0-2])

  3965.             subarch="avr32_ap"

  3966.             cpuflags="-mpart=$cpu"

  3967.         ;;

  3968.         ap)

  3969.             subarch="avr32_ap"

  3970.             cpuflags="-march=$cpu"

  3971.         ;;

  3972.         uc3[ab]*)

  3973.             subarch="avr32_uc"

  3974.             cpuflags="-mcpu=$cpu"

  3975.         ;;

  3976.         uc)

  3977.             subarch="avr32_uc"

  3978.             cpuflags="-march=$cpu"

  3979.         ;;

  3980.     esac

  3981. 

  3982. elif enabled bfin; then

  3983. 

  3984.     cpuflags="-mcpu=$cpu"

  3985. 

  3986. elif enabled mips; then

  3987. 

  3988.     cpuflags="-march=$cpu"

  3989. 

  3990.     case $cpu in

  3991.         24kc)

  3992.             disable mips32r5

  3993.             disable mips64r6

  3994.             disable mipsfpu

  3995.             disable mipsdspr1

  3996.             disable mipsdspr2

  3997.             disable msa

  3998.         ;;

  3999.         24kf*)

  4000.             disable mips32r5

  4001.             disable mips64r6

  4002.             disable mipsdspr1

  4003.             disable mipsdspr2

  4004.             disable msa

  4005.         ;;

  4006.         24kec|34kc|1004kc)

  4007.             disable mips32r5

  4008.             disable mips64r6

  4009.             disable mipsfpu

  4010.             disable mipsdspr2

  4011.             disable msa

  4012.         ;;

  4013.         24kef*|34kf*|1004kf*)

  4014.             disable mips32r5

  4015.             disable mips64r6

  4016.             disable mipsdspr2

  4017.             disable msa

  4018.         ;;

  4019.         74kc)

  4020.             disable mips32r5

  4021.             disable mips64r6

  4022.             disable mipsfpu

  4023.             disable msa

  4024.         ;;

  4025.         74kf)

  4026.             disable mips32r5

  4027.             disable mips64r6

  4028.             disable msa

  4029.         ;;

  4030.         p5600)

  4031.             disable mips64r6

  4032.             disable mipsdspr1

  4033.             disable mipsdspr2

  4034. 

  4035.             check_cflags "-mtune=p5600"

  4036.         ;;

  4037.         i6400)

  4038.             disable mips32r5

  4039.             disable mipsdspr1

  4040.             disable mipsdspr2

  4041.             disable mipsfpu

  4042. 

  4043.             check_cflags "-mtune=i6400 -mabi=64"

  4044.             check_ldflags "-mabi=64"

  4045.         ;;

  4046.         loongson*)

  4047.             disable mipsfpu

  4048.             disable mips32r2

  4049.             disable mips32r5

  4050.             disable mips64r6

  4051.             disable mipsdspr1

  4052.             disable mipsdspr2

  4053.             disable msa

  4054.             enable local_aligned_8 local_aligned_16 local_aligned_32

  4055.             enable simd_align_16

  4056.             enable fast_64bit

  4057.             enable fast_clz

  4058.             enable fast_cmov

  4059.             enable fast_unaligned

  4060.             disable aligned_stack

  4061.             case $cpu in

  4062.                 loongson3*)

  4063.                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4064.                 ;;

  4065.                 loongson2e)

  4066.                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4067.                 ;;

  4068.                 loongson2f)

  4069.                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4070.                 ;;

  4071.             esac

  4072.         ;;

  4073.         generic)

  4074.             disable mips32r5

  4075.             disable mips64r6

  4076.             disable msa

  4077.         ;;

  4078.     esac

  4079. 

  4080. elif enabled ppc; then

  4081. 

  4082.     disable ldbrx

  4083. 

  4084.     case $(tolower $cpu) in

  4085.         601|ppc601|powerpc601)

  4086.             cpuflags="-mcpu=601"

  4087.             disable altivec

  4088.         ;;

  4089.         603*|ppc603*|powerpc603*)

  4090.             cpuflags="-mcpu=603"

  4091.             disable altivec

  4092.         ;;

  4093.         604*|ppc604*|powerpc604*)

  4094.             cpuflags="-mcpu=604"

  4095.             disable altivec

  4096.         ;;

  4097.         g3|75*|ppc75*|powerpc75*)

  4098.             cpuflags="-mcpu=750"

  4099.             disable altivec

  4100.         ;;

  4101.         g4|745*|ppc745*|powerpc745*)

  4102.             cpuflags="-mcpu=7450"

  4103.             disable vsx

  4104.         ;;

  4105.         74*|ppc74*|powerpc74*)

  4106.             cpuflags="-mcpu=7400"

  4107.             disable vsx

  4108.         ;;

  4109.         g5|970|ppc970|powerpc970)

  4110.             cpuflags="-mcpu=970"

  4111.             disable vsx

  4112.         ;;

  4113.         power[3-6]*)

  4114.             cpuflags="-mcpu=$cpu"

  4115.             disable vsx

  4116.         ;;

  4117.         power[7-8]*)

  4118.             cpuflags="-mcpu=$cpu"

  4119.         ;;

  4120.         cell)

  4121.             cpuflags="-mcpu=cell"

  4122.             enable ldbrx

  4123.             disable vsx

  4124.         ;;

  4125.         e500mc)

  4126.             cpuflags="-mcpu=e500mc"

  4127.             disable altivec

  4128.         ;;

  4129.         e500v2)

  4130.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4131.             disable altivec

  4132.             disable dcbzl

  4133.         ;;

  4134.         e500)

  4135.             cpuflags="-mcpu=8540 -mhard-float"

  4136.             disable altivec

  4137.             disable dcbzl

  4138.         ;;

  4139.     esac

  4140. 

  4141. elif enabled sparc; then

  4142. 

  4143.     case $cpu in

  4144.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4145.             cpuflags="-mcpu=$cpu"

  4146.         ;;

  4147.         ultrasparc*|niagara[234])

  4148.             cpuflags="-mcpu=$cpu"

  4149.         ;;

  4150.     esac

  4151. 

  4152. elif enabled x86; then

  4153. 

  4154.     case $cpu in

  4155.         i[345]86|pentium)

  4156.             cpuflags="-march=$cpu"

  4157.             disable i686

  4158.             disable mmx

  4159.         ;;

  4160.         # targets that do NOT support nopl and conditional mov (cmov)

  4161.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4162.             cpuflags="-march=$cpu"

  4163.             disable i686

  4164.         ;;

  4165.         # targets that do support nopl and conditional mov (cmov)

  4166.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4167.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)

  4168.             cpuflags="-march=$cpu"

  4169.             enable i686

  4170.             enable fast_cmov

  4171.         ;;

  4172.         # targets that do support conditional mov but on which it's slow

  4173.         pentium4|pentium4m|prescott|nocona)

  4174.             cpuflags="-march=$cpu"

  4175.             enable i686

  4176.             disable fast_cmov

  4177.         ;;

  4178.     esac

  4179. 

  4180. fi

  4181. 

  4182. if [ "$cpu" != generic ]; then

  4183.     add_cflags  $cpuflags

  4184.     add_asflags $cpuflags

  4185. fi

  4186. 

  4187. # compiler sanity check

  4188. check_exec <<EOF

  4189. int main(void){ return 0; }

  4190. EOF

  4191. if test "$?" != 0; then

  4192.     echo "$cc is unable to create an executable file."

  4193.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4194.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4195.         echo "Only do this if you know what cross compiling means."

  4196.     fi

  4197.     die "C compiler test failed."

  4198. fi

  4199. 

  4200. add_cppflags -D_ISOC99_SOURCE

  4201. add_cxxflags -D__STDC_CONSTANT_MACROS

  4202. check_cflags -std=c99

  4203. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4204. #include <stdlib.h>

  4205. EOF

  4206. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4207. #include <stdlib.h>

  4208. EOF

  4209. 

  4210. add_host_cppflags -D_ISOC99_SOURCE

  4211. check_host_cflags -std=c99

  4212. check_host_cflags -Wall

  4213. check_host_cflags -O3

  4214. 

  4215. check_64bit(){

  4216.     arch32=$1

  4217.     arch64=$2

  4218.     expr=$3

  4219.     check_code cc "" "int test[2*($expr) - 1]" &&

  4220.         subarch=$arch64 || subarch=$arch32

  4221. }

  4222. 

  4223. case "$arch" in

  4224.     aarch64|alpha|ia64)

  4225.         spic=$shared

  4226.     ;;

  4227.     mips)

  4228.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4229.         spic=$shared

  4230.     ;;

  4231.     parisc)

  4232.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4233.         spic=$shared

  4234.     ;;

  4235.     ppc)

  4236.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4237.         spic=$shared

  4238.     ;;

  4239.     s390)

  4240.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4241.         spic=$shared

  4242.     ;;

  4243.     sparc)

  4244.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4245.         spic=$shared

  4246.     ;;

  4247.     x86)

  4248.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4249.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4250.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4251.             subarch=x86_64

  4252.         if test "$subarch" = "x86_64"; then

  4253.             spic=$shared

  4254.         fi

  4255.     ;;

  4256.     ppc)

  4257.         check_cc <<EOF && subarch="ppc64"

  4258.         int test[(int)sizeof(char*) - 7];

  4259. EOF

  4260.     ;;

  4261. esac

  4262. 

  4263. enable $subarch

  4264. enabled spic && enable_weak pic

  4265. 

  4266. # OS specific

  4267. case $target_os in

  4268.     aix)

  4269.         SHFLAGS=-shared

  4270.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4271.         enabled shared && add_ldflags -Wl,-brtl

  4272.         ;;

  4273.     android)

  4274.         disable symver

  4275.         enable section_data_rel_ro

  4276.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4277.         SLIB_INSTALL_LINKS=

  4278.         # soname not set on purpose

  4279.         SHFLAGS=-shared

  4280.         ;;

  4281.     haiku)

  4282.         prefix_default="/boot/common"

  4283.         network_extralibs="-lnetwork"

  4284.         host_libs=

  4285.         ;;

  4286.     sunos)

  4287.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4288.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4289.         network_extralibs="-lsocket -lnsl"

  4290.         add_cppflags -D__EXTENSIONS__

  4291.         # When using suncc to build, the Solaris linker will mark

  4292.         # an executable with each instruction set encountered by

  4293.         # the Solaris assembler.  As our libraries contain their own

  4294.         # guards for processor-specific code, instead suppress

  4295.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4296.         enabled_all suncc x86 &&

  4297.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4298.             add_ldflags -Wl,-M,mapfile

  4299.         nm_default='nm -P -g'

  4300.         ;;

  4301.     netbsd)

  4302.         disable symver

  4303.         oss_indev_extralibs="-lossaudio"

  4304.         oss_outdev_extralibs="-lossaudio"

  4305.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4306.         ;;

  4307.     openbsd|bitrig)

  4308.         disable symver

  4309.         SHFLAGS='-shared'

  4310.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4311.         SLIB_INSTALL_LINKS=

  4312.         oss_indev_extralibs="-lossaudio"

  4313.         oss_outdev_extralibs="-lossaudio"

  4314.         ;;

  4315.     dragonfly)

  4316.         disable symver

  4317.         ;;

  4318.     freebsd)

  4319.         ;;

  4320.     bsd/os)

  4321.         add_extralibs -lpoll -lgnugetopt

  4322.         strip="strip -d"

  4323.         ;;

  4324.     darwin)

  4325.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4326.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4327.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4328.         strip="${strip} -x"

  4329.         add_ldflags -Wl,-dynamic,-search_paths_first

  4330.         SLIBSUF=".dylib"

  4331.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4332.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4333.         objformat="macho"

  4334.         enabled x86_64 && objformat="macho64"

  4335.         enabled_any pic shared x86_64 ||

  4336.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4337.         ;;

  4338.     mingw32*)

  4339.         if test $target_os = "mingw32ce"; then

  4340.             disable network

  4341.         else

  4342.             target_os=mingw32

  4343.         fi

  4344.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4345.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4346.         LIBTARGET=i386

  4347.         if enabled x86_64; then

  4348.             LIBTARGET="i386:x86-64"

  4349.         elif enabled arm; then

  4350.             LIBTARGET=arm-wince

  4351.         fi

  4352.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4353.         check_ldflags -Wl,--nxcompat

  4354.         check_ldflags -Wl,--dynamicbase

  4355.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4356.         shlibdir_default="$bindir_default"

  4357.         SLIBPREF=""

  4358.         SLIBSUF=".dll"

  4359.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4360.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4361.         dlltool="${cross_prefix}dlltool"

  4362.         if check_cmd lib.exe -list; then

  4363.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4364.             if enabled x86_64; then

  4365.                 LIBTARGET=x64

  4366.             fi

  4367.         elif check_cmd $dlltool --version; then

  4368.             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)'

  4369.         fi

  4370.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4371.         SLIB_INSTALL_LINKS=

  4372.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4373.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4374.         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'

  4375.         objformat="win32"

  4376.         ranlib=:

  4377.         enable dos_paths

  4378.         ;;

  4379.     win32|win64)

  4380.         disable symver

  4381.         if enabled shared; then

  4382.             # Link to the import library instead of the normal static library

  4383.             # for shared libs.

  4384.             LD_LIB='%.lib'

  4385.             # Cannot build both shared and static libs with MSVC or icl.

  4386.             disable static

  4387.         fi

  4388.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4389.         shlibdir_default="$bindir_default"

  4390.         SLIBPREF=""

  4391.         SLIBSUF=".dll"

  4392.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4393.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4394.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4395.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4396.         SLIB_INSTALL_LINKS=

  4397.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4398.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4399.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4400.         objformat="win32"

  4401.         ranlib=:

  4402.         enable dos_paths

  4403.         ;;

  4404.     cygwin*)

  4405.         target_os=cygwin

  4406.         shlibdir_default="$bindir_default"

  4407.         SLIBPREF="cyg"

  4408.         SLIBSUF=".dll"

  4409.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4410.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4411.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4412.         SLIB_INSTALL_LINKS=

  4413.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4414.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4415.         objformat="win32"

  4416.         enable dos_paths

  4417.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4418.         ;;

  4419.     *-dos|freedos|opendos)

  4420.         network_extralibs="-lsocket"

  4421.         objformat="coff"

  4422.         enable dos_paths

  4423.         add_cppflags -U__STRICT_ANSI__

  4424.         ;;

  4425.     linux)

  4426.         enable dv1394

  4427.         enable section_data_rel_ro

  4428.         ;;

  4429.     irix*)

  4430.         target_os=irix

  4431.         ranlib="echo ignoring ranlib"

  4432.         ;;

  4433.     os/2*)

  4434.         strip="lxlite -CS"

  4435.         ln_s="cp -f"

  4436.         objformat="aout"

  4437.         add_cppflags -D_GNU_SOURCE

  4438.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4439.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4440.         LIBSUF="_s.a"

  4441.         SLIBPREF=""

  4442.         SLIBSUF=".dll"

  4443.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'

  4444.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4445.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \

  4446.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \

  4447.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \

  4448.             echo EXPORTS >> $(SUBDIR)$(NAME).def; \

  4449.             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'

  4450.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \

  4451.             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'

  4452.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'

  4453.         enable dos_paths

  4454.         enable_weak os2threads

  4455.         ;;

  4456.     gnu/kfreebsd)

  4457.         add_cppflags -D_BSD_SOURCE

  4458.         ;;

  4459.     gnu)

  4460.         ;;

  4461.     qnx)

  4462.         add_cppflags -D_QNX_SOURCE

  4463.         network_extralibs="-lsocket"

  4464.         ;;

  4465.     symbian)

  4466.         SLIBSUF=".dll"

  4467.         enable dos_paths

  4468.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4469.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4470.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4471.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4472.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4473.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4474.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4475.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4476.         ;;

  4477.     osf1)

  4478.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4479.         ;;

  4480.     minix)

  4481.         ;;

  4482.     plan9)

  4483.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4484.                      -D_REENTRANT_SOURCE        \

  4485.                      -D_RESEARCH_SOURCE         \

  4486.                      -DFD_SETSIZE=96            \

  4487.                      -DHAVE_SOCK_OPTS

  4488.         add_compat strtod.o strtod=avpriv_strtod

  4489.         network_extralibs='-lbsd'

  4490.         exeobjs=compat/plan9/main.o

  4491.         disable ffserver

  4492.         cp_f='cp'

  4493.         ;;

  4494.     none)

  4495.         ;;

  4496.     *)

  4497.         die "Unknown OS '$target_os'."

  4498.         ;;

  4499. esac

  4500. 

  4501. # determine libc flavour

  4502. 

  4503. probe_libc(){

  4504.     pfx=$1

  4505.     pfx_no_=${pfx%_}

  4506.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4507.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4508.         eval ${pfx}libc_type=uclibc

  4509.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4510.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4511.         eval ${pfx}libc_type=glibc

  4512.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4513.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4514.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4515.         eval ${pfx}libc_type=newlib

  4516.         add_${pfx}cppflags -U__STRICT_ANSI__

  4517.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4518.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4519.         eval ${pfx}libc_type=mingw64

  4520.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4521.             add_compat msvcrt/snprintf.o

  4522.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4523.         fi

  4524.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4525.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4526.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4527.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4528.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4529.         eval ${pfx}libc_type=mingw32

  4530.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4531.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4532.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4533.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4534.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4535.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4536.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4537.         eval ${pfx}libc_type=msvcrt

  4538.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4539.             if [ "$pfx" = host_ ]; then

  4540.                 add_host_cppflags -Dsnprintf=_snprintf

  4541.             else

  4542.                 add_compat strtod.o strtod=avpriv_strtod

  4543.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4544.                                              _snprintf=avpriv_snprintf  \

  4545.                                              vsnprintf=avpriv_vsnprintf

  4546.             fi

  4547.         fi

  4548.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4549.         # 0x601 by default unless something else is set by the user.

  4550.         # This can easily lead to us detecting functions only present

  4551.         # in such new versions and producing binaries requiring windows 7.0.

  4552.         # Therefore explicitly set the default to XP unless the user has

  4553.         # set something else on the command line.

  4554.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4555.         # family. For these cases, configure is free to use any functions

  4556.         # found in the SDK headers by default. (Alternatively, we could force

  4557.         # _WIN32_WINNT to 0x0602 in that case.)

  4558.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4559.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4560. #ifdef WINAPI_FAMILY

  4561. #include <winapifamily.h>

  4562. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4563. #error not desktop

  4564. #endif

  4565. #endif

  4566. EOF

  4567.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4568.         eval ${pfx}libc_type=klibc

  4569.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4570.         eval ${pfx}libc_type=bionic

  4571.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4572.         eval ${pfx}libc_type=solaris

  4573.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4574.     fi

  4575.     check_${pfx}cc <<EOF

  4576. #include <time.h>

  4577. void *v = localtime_r;

  4578. EOF

  4579. 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

  4580. #include <time.h>

  4581. void *v = localtime_r;

  4582. EOF

  4583. 

  4584. }

  4585. 

  4586. probe_libc

  4587. test -n "$libc_type" && enable libc_$libc_type

  4588. probe_libc host_

  4589. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  4590. 

  4591. case $libc_type in

  4592.     bionic)

  4593.         add_compat strtod.o strtod=avpriv_strtod

  4594.         ;;

  4595. esac

  4596. 

  4597. # hacks for compiler/libc/os combinations

  4598. 

  4599. if enabled_all tms470 libc_glibc; then

  4600.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  4601.     add_cppflags -D__USER_LABEL_PREFIX__=

  4602.     add_cppflags -D__builtin_memset=memset

  4603.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  4604.     add_cflags   -pds=48    # incompatible redefinition of macro

  4605. fi

  4606. 

  4607. if enabled_all ccc libc_glibc; then

  4608.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  4609. fi

  4610. 

  4611. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  4612.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  4613. 

  4614. esc(){

  4615.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  4616. }

  4617. 

  4618. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  4619. 

  4620. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  4621. 

  4622. set_default libdir

  4623. : ${shlibdir_default:="$libdir"}

  4624. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  4625. 

  4626. set_default $PATHS_LIST

  4627. set_default nm

  4628. 

  4629. # we need to build at least one lib type

  4630. if ! enabled_any static shared; then

  4631.     cat <<EOF

  4632. At least one library type must be built.

  4633. Specify --enable-static to build the static libraries or --enable-shared to

  4634. build the shared libraries as well. To only build the shared libraries specify

  4635. --disable-static in addition to --enable-shared.

  4636. EOF

  4637.     exit 1;

  4638. fi

  4639. 

  4640. die_license_disabled() {

  4641.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  4642. }

  4643. 

  4644. die_license_disabled_gpl() {

  4645.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  4646. }

  4647. 

  4648. die_license_disabled gpl frei0r

  4649. die_license_disabled gpl libcdio

  4650. die_license_disabled gpl libsmbclient

  4651. die_license_disabled gpl libutvideo

  4652. die_license_disabled gpl libvidstab

  4653. die_license_disabled gpl libx264

  4654. die_license_disabled gpl libx265

  4655. die_license_disabled gpl libxavs

  4656. die_license_disabled gpl libxvid

  4657. die_license_disabled gpl libzvbi

  4658. die_license_disabled gpl x11grab

  4659. 

  4660. die_license_disabled nonfree libaacplus

  4661. die_license_disabled nonfree libfaac

  4662. die_license_disabled nonfree nvenc

  4663. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  4664. enabled gpl && die_license_disabled_gpl nonfree openssl

  4665. 

  4666. die_license_disabled version3 libopencore_amrnb

  4667. die_license_disabled version3 libopencore_amrwb

  4668. die_license_disabled version3 libsmbclient

  4669. die_license_disabled version3 libvo_aacenc

  4670. die_license_disabled version3 libvo_amrwbenc

  4671. 

  4672. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  4673. 

  4674. disabled optimizations || check_cflags -fomit-frame-pointer

  4675. 

  4676. enable_weak_pic() {

  4677.     disabled pic && return

  4678.     enable pic

  4679.     add_cppflags -DPIC

  4680.     case "$target_os" in

  4681.     mingw*|cygwin*)

  4682.         ;;

  4683.     *)

  4684.         add_cflags -fPIC

  4685.         ;;

  4686.     esac

  4687.     add_asflags  -fPIC

  4688. }

  4689. 

  4690. enabled pic && enable_weak_pic

  4691. 

  4692. check_cc <<EOF || die "Symbol mangling check failed."

  4693. int ff_extern;

  4694. EOF

  4695. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  4696. extern_prefix=${sym%%ff_extern*}

  4697. 

  4698. check_cc <<EOF && enable_weak inline_asm

  4699. void foo(void) { __asm__ volatile ("" ::); }

  4700. EOF

  4701. 

  4702. _restrict=

  4703. for restrict_keyword in restrict __restrict__ __restrict; do

  4704.     check_cc <<EOF && _restrict=$restrict_keyword && break

  4705. void foo(char * $restrict_keyword p);

  4706. EOF

  4707. done

  4708. 

  4709. check_cc <<EOF && enable pragma_deprecated

  4710. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  4711. EOF

  4712. 

  4713. check_cc <<EOF && enable attribute_packed

  4714. struct { int x; } __attribute__((packed)) x;

  4715. EOF

  4716. 

  4717. check_cc <<EOF && enable attribute_may_alias

  4718. union { int x; } __attribute__((may_alias)) x;

  4719. EOF

  4720. 

  4721. check_cc <<EOF || die "endian test failed"

  4722. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  4723. EOF

  4724. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  4725. 

  4726. if ! enabled ppc64 || enabled bigendian; then

  4727.     disable vsx

  4728. fi

  4729. 

  4730. check_gas() {

  4731.     log "check_gas using '$as' as AS"

  4732.     # :vararg is used on aarch64, arm and ppc altivec

  4733.     check_as <<EOF || return 1

  4734. .macro m n, y:vararg=0

  4735. \n: .int \y

  4736. .endm

  4737. m x

  4738. EOF

  4739.     # .altmacro is only used in arm asm

  4740.     ! enabled arm || check_as <<EOF || return 1

  4741. .altmacro

  4742. EOF

  4743.     enable gnu_as

  4744.     return 0

  4745. }

  4746. 

  4747. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  4748.     nogas=:

  4749.     enabled_any arm aarch64 && nogas=die

  4750.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  4751.     as_noop=-v

  4752. 

  4753.     case $as_type in

  4754.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  4755.         gcc)  gaspp_as_type=gas ;;

  4756.         *)    gaspp_as_type=$as_type ;;

  4757.     esac

  4758. 

  4759.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  4760. 

  4761.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  4762.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  4763.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  4764. 

  4765.     if ! check_gas ; then

  4766.         as=${gas:=$as}

  4767.         check_gas || \

  4768.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  4769.     fi

  4770. 

  4771.     check_as <<EOF && enable as_func

  4772. .func test

  4773. .endfunc

  4774. EOF

  4775. fi

  4776. 

  4777. check_inline_asm inline_asm_labels '"1:\n"'

  4778. 

  4779. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  4780. 

  4781. if enabled aarch64; then

  4782.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  4783.     # internal assembler in clang 3.3 does not support this instruction

  4784.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  4785.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  4786. 

  4787.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  4788. 

  4789. elif enabled alpha; then

  4790. 

  4791.     check_cflags -mieee

  4792. 

  4793. elif enabled arm; then

  4794. 

  4795.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  4796. 

  4797.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  4798. float func(float a, float b){ return a+b; }

  4799. EOF

  4800. 

  4801.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  4802. 

  4803.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  4804.         enable vfp_args

  4805.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  4806.         enable vfp_args

  4807.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  4808.         case "${cross_prefix:-$cc}" in

  4809.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  4810.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  4811. __asm__ (".eabi_attribute 28, 1");

  4812. int main(void) { return 0; }

  4813. EOF

  4814.         esac

  4815.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  4816.     fi

  4817. 

  4818.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  4819.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  4820.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  4821.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  4822.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  4823.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  4824.     enabled setend  && check_insn setend  'setend be'

  4825. 

  4826.     [ $target_os = linux ] || [ $target_os = android ] ||

  4827.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  4828.             $ARCH_EXT_LIST_ARM

  4829. 

  4830.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  4831. 

  4832.     check_as <<EOF && enable as_dn_directive

  4833. ra .dn d0.i16

  4834. .unreq ra

  4835. EOF

  4836. 

  4837.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  4838.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  4839. .object_arch armv4

  4840. EOF

  4841. 

  4842.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  4843. 

  4844. elif enabled mips; then

  4845. 

  4846.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  4847.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  4848.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  4849. 

  4850.     # Enable minimum ISA based on selected options

  4851.     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then

  4852.         add_cflags "-mips64r2"

  4853.         add_asflags "-mips64r2"

  4854.     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then

  4855.         add_cflags "-mips64"

  4856.         add_asflags "-mips64"

  4857.     elif enabled mipsdspr1 || enabled mipsdspr2; then

  4858.         add_cflags "-mips32r2 -mfp32"

  4859.         add_asflags "-mips32r2 -mfp32"

  4860.     elif enabled mips32r5 || enabled mips64r6; then

  4861.         check_cflags "-mfp64"

  4862.         check_ldflags "-mfp64"

  4863.     fi

  4864. 

  4865.     enabled mips32r5  && check_cflags "-mips32r5 -msched-weight -mload-store-pairs -funroll-loops" &&

  4866.      check_ldflags "-mips32r5" &&

  4867.      check_inline_asm mips32r5  '"ulw $t0, ($t1)"'

  4868.     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&

  4869.      check_ldflags "-mips64r6" &&

  4870.      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'

  4871.     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&

  4872.      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'

  4873.     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&

  4874.      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'

  4875.     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&

  4876.      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'

  4877.     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&

  4878.      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'

  4879. 

  4880.     enabled mips32r5 && add_asflags "-mips32r5 -mfp64"

  4881.     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"

  4882.     enabled msa && add_asflags "-mmsa"

  4883. 

  4884. elif enabled parisc; then

  4885. 

  4886.     if enabled gcc; then

  4887.         case $($cc -dumpversion) in

  4888.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  4889.         esac

  4890.     fi

  4891. 

  4892. elif enabled ppc; then

  4893. 

  4894.     enable local_aligned_8 local_aligned_16 local_aligned_32

  4895. 

  4896.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  4897.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  4898.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  4899.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  4900. 

  4901.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  4902.     if enabled altivec; then

  4903.         check_cflags -maltivec -mabi=altivec &&

  4904.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  4905.         check_cflags -faltivec

  4906. 

  4907.         # check if our compiler supports Motorola AltiVec C API

  4908.         check_cc <<EOF || disable altivec

  4909. $inc_altivec_h

  4910. int main(void) {

  4911.     vector signed int v1 = (vector signed int) { 0 };

  4912.     vector signed int v2 = (vector signed int) { 1 };

  4913.     v1 = vec_add(v1, v2);

  4914.     return 0;

  4915. }

  4916. EOF

  4917. 

  4918.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  4919.     fi

  4920. 

  4921.     if enabled vsx; then

  4922.         check_cflags -mvsx &&

  4923.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  4924.     fi

  4925. 

  4926.     if enabled power8; then

  4927.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  4928.     fi

  4929. 

  4930. elif enabled x86; then

  4931. 

  4932.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  4933.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  4934. 

  4935.     enable local_aligned_8 local_aligned_16 local_aligned_32

  4936. 

  4937.     # check whether EBP is available on x86

  4938.     # As 'i' is stored on the stack, this program will crash

  4939.     # if the base pointer is used to access it because the

  4940.     # base pointer is cleared in the inline assembly code.

  4941.     check_exec_crash <<EOF && enable ebp_available

  4942. volatile int i=0;

  4943. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  4944. return i;

  4945. EOF

  4946. 

  4947.     # check whether EBX is available on x86

  4948.     check_inline_asm ebx_available '""::"b"(0)' &&

  4949.         check_inline_asm ebx_available '"":::"%ebx"'

  4950. 

  4951.     # check whether xmm clobbers are supported

  4952.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  4953. 

  4954.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  4955.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  4956. 

  4957.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  4958.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  4959.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  4960. 

  4961.     if ! disabled_any asm mmx yasm; then

  4962.         if check_cmd $yasmexe --version; then

  4963.             enabled x86_64 && yasm_extra="-m amd64"

  4964.             yasm_debug="-g dwarf2"

  4965.         elif check_cmd nasm -v; then

  4966.             yasmexe=nasm

  4967.             yasm_debug="-g -F dwarf"

  4968.             if enabled x86_64; then

  4969.                 case "$objformat" in

  4970.                     elf)   objformat=elf64 ;;

  4971.                     win32) objformat=win64 ;;

  4972.                 esac

  4973.             fi

  4974.         fi

  4975. 

  4976.         YASMFLAGS="-f $objformat $yasm_extra"

  4977.         enabled pic               && append YASMFLAGS "-DPIC"

  4978.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  4979.         case "$objformat" in

  4980.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  4981.         esac

  4982. 

  4983.         check_yasm "movbe ecx, [5]" && enable yasm ||

  4984.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  4985.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  4986.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  4987.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  4988.         check_yasm "CPU amdnop" || disable cpunop

  4989.     fi

  4990. 

  4991.     case "$cpu" in

  4992.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  4993.             disable fast_clz

  4994.         ;;

  4995.     esac

  4996. 

  4997. fi

  4998. 

  4999. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5000. 

  5001. check_ldflags -Wl,--as-needed

  5002. check_ldflags -Wl,-z,noexecstack

  5003. 

  5004. if check_func dlopen; then

  5005.     ldl=

  5006. elif check_func dlopen -ldl; then

  5007.     ldl=-ldl

  5008. fi

  5009. 

  5010. frei0r_filter_extralibs='$ldl'

  5011. frei0r_src_filter_extralibs='$ldl'

  5012. ladspa_filter_extralibs='$ldl'

  5013. nvenc_encoder_extralibs='$ldl'

  5014. 

  5015. if ! disabled network; then

  5016.     check_func getaddrinfo $network_extralibs

  5017.     check_func getservbyport $network_extralibs

  5018.     check_func inet_aton $network_extralibs

  5019. 

  5020.     check_type netdb.h "struct addrinfo"

  5021.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5022.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5023.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5024.     check_type poll.h "struct pollfd"

  5025.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5026.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5027.     check_type netinet/in.h "struct sockaddr_in6"

  5028.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5029.     check_type "sys/types.h sys/socket.h" socklen_t

  5030. 

  5031.     # Prefer arpa/inet.h over winsock2

  5032.     if check_header arpa/inet.h ; then

  5033.         check_func closesocket

  5034.     elif check_header winsock2.h ; then

  5035.         check_func_headers winsock2.h closesocket -lws2 &&

  5036.             network_extralibs="-lws2" ||

  5037.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5038.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5039.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5040. 

  5041.         check_type ws2tcpip.h socklen_t

  5042.         check_type ws2tcpip.h "struct addrinfo"

  5043.         check_type ws2tcpip.h "struct group_source_req"

  5044.         check_type ws2tcpip.h "struct ip_mreq_source"

  5045.         check_type ws2tcpip.h "struct ipv6_mreq"

  5046.         check_type winsock2.h "struct pollfd"

  5047.         check_struct winsock2.h "struct sockaddr" sa_len

  5048.         check_type ws2tcpip.h "struct sockaddr_in6"

  5049.         check_type ws2tcpip.h "struct sockaddr_storage"

  5050.     else

  5051.         disable network

  5052.     fi

  5053. fi

  5054. 

  5055. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5056. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5057. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5058. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5059. check_builtin sarestart signal.h "SA_RESTART"

  5060. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5061. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5062. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5063. 

  5064. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5065. check_func  ${malloc_prefix}memalign            && enable memalign

  5066. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5067. 

  5068. check_func  access

  5069. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5070. check_func  fcntl

  5071. check_func  fork

  5072. check_func  gethrtime

  5073. check_func  getopt

  5074. check_func  getrusage

  5075. check_func  gettimeofday

  5076. check_func  isatty

  5077. check_func  mach_absolute_time

  5078. check_func  mkstemp

  5079. check_func  mmap

  5080. check_func  mprotect

  5081. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5082. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5083. check_func  sched_getaffinity

  5084. check_func  setrlimit

  5085. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5086. check_func  strerror_r

  5087. check_func  sysconf

  5088. check_func  sysctl

  5089. check_func  usleep

  5090. 

  5091. check_func_headers conio.h kbhit

  5092. check_func_headers io.h setmode

  5093. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5094. check_func_headers stdlib.h getenv

  5095. check_func_headers sys/stat.h lstat

  5096. 

  5097. check_func_headers windows.h CoTaskMemFree -lole32

  5098. check_func_headers windows.h GetProcessAffinityMask

  5099. check_func_headers windows.h GetProcessTimes

  5100. check_func_headers windows.h GetSystemTimeAsFileTime

  5101. check_func_headers windows.h MapViewOfFile

  5102. check_func_headers windows.h PeekNamedPipe

  5103. check_func_headers windows.h SetConsoleTextAttribute

  5104. check_func_headers windows.h SetConsoleCtrlHandler

  5105. check_func_headers windows.h Sleep

  5106. check_func_headers windows.h VirtualAlloc

  5107. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5108. check_func_headers glob.h glob

  5109. enabled xlib &&

  5110.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5111. 

  5112. check_header CoreServices/CoreServices.h

  5113. check_header direct.h

  5114. check_header dirent.h

  5115. check_header dlfcn.h

  5116. check_header d3d11.h

  5117. check_header dxva.h

  5118. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5119. check_header io.h

  5120. check_header libcrystalhd/libcrystalhd_if.h

  5121. check_header mach/mach_time.h

  5122. check_header malloc.h

  5123. check_header net/udplite.h

  5124. check_header poll.h

  5125. check_header sys/mman.h

  5126. check_header sys/param.h

  5127. check_header sys/resource.h

  5128. check_header sys/select.h

  5129. check_header sys/time.h

  5130. check_header sys/un.h

  5131. check_header termios.h

  5132. check_header unistd.h

  5133. check_header valgrind/valgrind.h

  5134. check_header vdpau/vdpau.h

  5135. check_header vdpau/vdpau_x11.h

  5136. check_header VideoDecodeAcceleration/VDADecoder.h

  5137. check_header VideoToolbox/VideoToolbox.h

  5138. check_header windows.h

  5139. check_header X11/extensions/XvMClib.h

  5140. check_header asm/types.h

  5141. 

  5142. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5143. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5144. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5145. 

  5146. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5147. 

  5148. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5149. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5150. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5151. 

  5152. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5153. 

  5154. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5155. 

  5156. if ! disabled w32threads && ! enabled pthreads; then

  5157.     check_func_headers "windows.h process.h" _beginthreadex &&

  5158.         enable w32threads || disable w32threads

  5159. fi

  5160. 

  5161. # check for some common methods of building with pthread support

  5162. # do this before the optional library checks as some of them require pthreads

  5163. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5164.     enable pthreads

  5165.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5166.         add_cflags -pthread

  5167.         add_extralibs -pthread

  5168.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5169.         add_cflags -pthreads

  5170.         add_extralibs -pthreads

  5171.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5172.         add_cflags -ldl -pthread

  5173.         add_extralibs -ldl -pthread

  5174.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5175.         add_extralibs -lpthreadGC2

  5176.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5177.         :

  5178.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5179.         disable pthreads

  5180.     fi

  5181.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5182. fi

  5183. 

  5184. 

  5185. if enabled pthreads; then

  5186.   check_func pthread_cancel

  5187. fi

  5188. 

  5189. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5190. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5191. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5192. 

  5193. check_lib math.h sin -lm && LIBM="-lm"

  5194. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5195. 

  5196. atan2f_args=2

  5197. copysign_args=2

  5198. ldexpf_args=2

  5199. powf_args=2

  5200. 

  5201. for func in $MATH_FUNCS; do

  5202.     eval check_mathfunc $func \${${func}_args:-1}

  5203. done

  5204. 

  5205. # these are off by default, so fail if requested and not available

  5206. enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5207. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5208.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5209. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5210.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5211.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5212. enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }

  5213. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5214. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5215. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5216. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5217. enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus

  5218. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5219. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5220. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5221. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5222.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5223.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5224. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5225. enabled libdcadec         && require_pkg_config dcadec libdcadec/dca_context.h dcadec_context_create &&

  5226.                              check_struct libdcadec/dca_context.h "struct dcadec_exss_info" matrix_encoding

  5227. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5228. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5229.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5230.                                  warn "using libfdk without pkg-config"; } }

  5231. 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"

  5232. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5233. enabled fontconfig        && enable libfontconfig

  5234. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5235. enabled libfreetype       && require_libfreetype

  5236. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5237. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5238. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5239.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5240.                                done || die "ERROR: libgsm not found"; }

  5241. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5242. enabled libkvazaar        && require_pkg_config kvazaar kvazaar.h kvz_api_get

  5243. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5244. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5245. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5246. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5247. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5248. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5249. enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader

  5250. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5251. enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||

  5252.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5253.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5254.                                die "ERROR: libopenjpeg not found"; }

  5255. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5256. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5257. enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init

  5258. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5259. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5260. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5261. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5262.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5263. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5264. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr

  5265. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5266. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5267. enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h

  5268.     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h

  5269.     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static

  5270. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5271. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5272.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5273.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5274. enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++

  5275. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5276. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5277. enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc

  5278. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5279. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5280. 

  5281. enabled libvpx            && {

  5282.     enabled libvpx_vp8_decoder && {

  5283.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5284.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5285.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5286.     }

  5287.     enabled libvpx_vp8_encoder && {

  5288.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5289.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5290.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5291.     }

  5292.     enabled libvpx_vp9_decoder && {

  5293.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5294.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5295.                 disable libvpx_vp9_decoder;

  5296.     }

  5297.     enabled libvpx_vp9_encoder && {

  5298.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5299.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5300.                 disable libvpx_vp9_encoder;

  5301.     }

  5302.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5303.         die "libvpx enabled but no supported decoders found"

  5304.     fi

  5305. }

  5306. 

  5307. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5308. enabled libwebp           && {

  5309.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5310.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5311. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5312.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5313.                                  warn "using libx264 without pkg-config"; } } &&

  5314.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5315.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5316.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5317.                                enable libx262; }

  5318. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5319.                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||

  5320.                                die "ERROR: libx265 version must be >= 57."; }

  5321. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5322. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5323. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5324. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi

  5325. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5326.                                 { ! enabled cross_compile && {

  5327.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5328.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5329.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5330.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5331.                                die "ERROR: mmal not found"; }

  5332. enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&

  5333.                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||

  5334.                                die "ERROR: NVENC API version 4 or older is not supported"; } &&

  5335.                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }

  5336. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5337.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5338.                                die "ERROR: openal not found"; } &&

  5339.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5340.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5341. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5342.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5343.                                die "ERROR: opencl not found"; } &&

  5344.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5345.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5346.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5347. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5348.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5349.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5350.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5351.                                die "ERROR: opengl not found."

  5352.                              }

  5353. enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5354.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5355.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5356.                                die "ERROR: openssl not found"; }

  5357. enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }

  5358. 

  5359. if enabled gnutls; then

  5360.     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||

  5361.     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }

  5362. fi

  5363. 

  5364. # libdc1394 check

  5365. if enabled libdc1394; then

  5366.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5367.         enable libdc1394_2; } ||

  5368.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5369.         enable libdc1394_1; } ||

  5370.     die "ERROR: No version of libdc1394 found "

  5371. fi

  5372. if ! disabled sdl; then

  5373.     SDL_CONFIG="${cross_prefix}sdl-config"

  5374.     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then

  5375.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5376.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5377.         enable sdl

  5378.     else

  5379.         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then

  5380.             sdl_cflags=$("${SDL_CONFIG}" --cflags)

  5381.             sdl_libs=$("${SDL_CONFIG}" --libs)

  5382.             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&

  5383.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5384.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5385.             enable sdl

  5386.         elif enabled sdl ; then

  5387.             die "ERROR: SDL not found"

  5388.         else

  5389.             disable sdl

  5390.         fi

  5391.     fi

  5392.     if test $target_os = "mingw32"; then

  5393.         sdl_libs="$sdl_libs -mconsole"

  5394.     fi

  5395. fi

  5396. enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs

  5397. 

  5398. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5399.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5400.     enable securetransport; }

  5401. 

  5402. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5403. enabled makeinfo \

  5404.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5405.     && enable makeinfo_html || disable makeinfo_html

  5406. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5407. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5408. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5409. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5410. 

  5411. check_header linux/fb.h

  5412. check_header linux/videodev.h

  5413. check_header linux/videodev2.h

  5414. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5415. 

  5416. check_header sys/videoio.h

  5417. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5418. 

  5419. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5420. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5421. # w32api 3.12 had it defined wrong

  5422. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5423. 

  5424. check_type "dshow.h" IBaseFilter

  5425. 

  5426. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5427. { check_header dev/bktr/ioctl_meteor.h &&

  5428.   check_header dev/bktr/ioctl_bt848.h; } ||

  5429. { check_header machine/ioctl_meteor.h &&

  5430.   check_header machine/ioctl_bt848.h; } ||

  5431. { check_header dev/video/meteor/ioctl_meteor.h &&

  5432.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5433. check_header dev/ic/bt8xx.h

  5434. 

  5435. check_header sndio.h

  5436. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5437.     enable_safe sys/soundcard.h

  5438. else

  5439.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5440.     #include <sys/soundcard.h>

  5441.     audio_buf_info abc;

  5442. EOF

  5443. fi

  5444. check_header soundcard.h

  5445. 

  5446. enabled_any alsa_indev alsa_outdev &&

  5447.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5448. 

  5449. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&

  5450.     check_func jack_port_get_latency_range -ljack

  5451. 

  5452. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5453. 

  5454. if enabled libcdio; then

  5455.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5456.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5457.     die "ERROR: No usable libcdio/cdparanoia found"

  5458. fi

  5459. 

  5460. enabled xlib &&

  5461.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5462. 

  5463. if ! disabled libxcb; then

  5464.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5465.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5466.     } && disable x11grab && enable libxcb

  5467. 

  5468. if enabled libxcb; then

  5469.     disabled libxcb_shm || {

  5470.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5471.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5472.         } && check_header sys/shm.h && enable libxcb_shm; }

  5473. 

  5474.     disabled libxcb_xfixes || {

  5475.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5476.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5477.         } && enable libxcb_xfixes; }

  5478. 

  5479.     disabled libxcb_shape || {

  5480.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5481.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5482.         } && enable libxcb_shape; }

  5483. 

  5484.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5485.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5486. fi

  5487. fi

  5488. 

  5489. if enabled x11grab; then

  5490.     enabled xlib || die "ERROR: Xlib not found"

  5491.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5492.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5493. fi

  5494. 

  5495. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5496. 

  5497. enabled dxva2api_h &&

  5498.     check_cc <<EOF && enable dxva2api_cobj

  5499. #define _WIN32_WINNT 0x0600

  5500. #define COBJMACROS

  5501. #include <windows.h>

  5502. #include <d3d9.h>

  5503. #include <dxva2api.h>

  5504. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5505. EOF

  5506. 

  5507. enabled vaapi &&

  5508.     check_lib va/va.h vaInitialize -lva ||

  5509.     disable vaapi

  5510. 

  5511. enabled vaapi && enabled xlib &&

  5512.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  5513.     enable vaapi_x11

  5514. 

  5515. enabled vdpau &&

  5516.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  5517.     disable vdpau

  5518. 

  5519. enabled vdpau && enabled xlib &&

  5520.     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  5521.     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&

  5522.     enable vdpau_x11

  5523. 

  5524. # Funny iconv installations are not unusual, so check it after all flags have been set

  5525. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  5526. 

  5527. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  5528. 

  5529. # add some useful compiler flags if supported

  5530. check_cflags -Wdeclaration-after-statement

  5531. check_cflags -Wall

  5532. check_cflags -Wdisabled-optimization

  5533. check_cflags -Wpointer-arith

  5534. check_cflags -Wredundant-decls

  5535. check_cflags -Wwrite-strings

  5536. check_cflags -Wtype-limits

  5537. check_cflags -Wundef

  5538. check_cflags -Wmissing-prototypes

  5539. check_cflags -Wno-pointer-to-int-cast

  5540. check_cflags -Wstrict-prototypes

  5541. check_cflags -Wempty-body

  5542. enabled extra_warnings && check_cflags -Winline

  5543. 

  5544. check_disable_warning(){

  5545.     warning_flag=-W${1#-Wno-}

  5546.     test_cflags $warning_flag && add_cflags $1

  5547. }

  5548. 

  5549. check_disable_warning -Wno-parentheses

  5550. check_disable_warning -Wno-switch

  5551. check_disable_warning -Wno-format-zero-length

  5552. check_disable_warning -Wno-pointer-sign

  5553. 

  5554. # add some linker flags

  5555. check_ldflags -Wl,--warn-common

  5556. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  5557. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  5558. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  5559. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  5560. 

  5561. # add some strip flags

  5562. # -wN '..@*' is more selective than -x, but not available everywhere.

  5563. check_stripflags -wN \'..@*\' || check_stripflags -x

  5564. 

  5565. enabled neon_clobber_test &&

  5566.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5567.                   -Wl,--wrap,avcodec_decode_audio4      \

  5568.                   -Wl,--wrap,avcodec_decode_video2      \

  5569.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5570.                   -Wl,--wrap,avcodec_encode_audio2      \

  5571.                   -Wl,--wrap,avcodec_encode_video2      \

  5572.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5573.                   -Wl,--wrap,swr_convert                \

  5574.                   -Wl,--wrap,avresample_convert ||

  5575.     disable neon_clobber_test

  5576. 

  5577. enabled xmm_clobber_test &&

  5578.     check_ldflags -Wl,--wrap,avcodec_open2              \

  5579.                   -Wl,--wrap,avcodec_decode_audio4      \

  5580.                   -Wl,--wrap,avcodec_decode_video2      \

  5581.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  5582.                   -Wl,--wrap,avcodec_encode_audio2      \

  5583.                   -Wl,--wrap,avcodec_encode_video       \

  5584.                   -Wl,--wrap,avcodec_encode_video2      \

  5585.                   -Wl,--wrap,avcodec_encode_subtitle    \

  5586.                   -Wl,--wrap,swr_convert                \

  5587.                   -Wl,--wrap,avresample_convert         \

  5588.                   -Wl,--wrap,sws_scale ||

  5589.     disable xmm_clobber_test

  5590. 

  5591. echo "X{};" > $TMPV

  5592. if test_ldflags -Wl,--version-script,$TMPV; then

  5593.     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'

  5594.     check_cc <<EOF && enable symver_asm_label

  5595. void ff_foo(void) __asm__ ("av_foo@VERSION");

  5596. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  5597. EOF

  5598.     check_cc <<EOF && enable symver_gnu_asm

  5599. __asm__(".symver ff_foo,av_foo@VERSION");

  5600. void ff_foo(void) {}

  5601. EOF

  5602. fi

  5603. 

  5604. if [ -z "$optflags" ]; then

  5605.     if enabled small; then

  5606.         optflags=$cflags_size

  5607.     elif enabled optimizations; then

  5608.         optflags=$cflags_speed

  5609.     else

  5610.         optflags=$cflags_noopt

  5611.     fi

  5612. fi

  5613. 

  5614. check_optflags(){

  5615.     check_cflags "$@"

  5616.     enabled lto && check_ldflags "$@"

  5617. }

  5618. 

  5619. 

  5620. if enabled lto; then

  5621.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  5622.     check_cflags  -flto

  5623.     check_ldflags -flto $cpuflags

  5624.     disable inline_asm_direct_symbol_refs

  5625. fi

  5626. 

  5627. check_optflags $optflags

  5628. check_optflags -fno-math-errno

  5629. check_optflags -fno-signed-zeros

  5630. 

  5631. enabled ftrapv && check_cflags -ftrapv

  5632. 

  5633. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  5634. int x;

  5635. EOF

  5636. 

  5637. 

  5638. if enabled icc; then

  5639.     # Just warnings, no remarks

  5640.     check_cflags -w1

  5641.     # -wd: Disable following warnings

  5642.     # 144, 167, 556: -Wno-pointer-sign

  5643.     # 188: enumerated type mixed with another type

  5644.     # 1292: attribute "foo" ignored

  5645.     # 1419: external declaration in primary source file

  5646.     # 10006: ignoring unknown option -fno-signed-zeros

  5647.     # 10148: ignoring unknown option -Wno-parentheses

  5648.     # 10156: ignoring option '-W'; no argument required

  5649.     # 13200: No EMMS instruction before call to function

  5650.     # 13203: No EMMS instruction before return from function

  5651.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  5652.     # 11030: Warning unknown option --as-needed

  5653.     # 10156: ignoring option '-export'; no argument required

  5654.     check_ldflags -wd10156,11030

  5655.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  5656.     enable ebp_available

  5657.     # The test above does not test linking

  5658.     enabled lto && disable symver_asm_label

  5659.     if enabled x86_32; then

  5660.         icc_version=$($cc -dumpversion)

  5661.         test ${icc_version%%.*} -ge 11 &&

  5662.             check_cflags -falign-stack=maintain-16-byte ||

  5663.             disable aligned_stack

  5664.     fi

  5665. elif enabled ccc; then

  5666.     # disable some annoying warnings

  5667.     add_cflags -msg_disable bitnotint

  5668.     add_cflags -msg_disable mixfuncvoid

  5669.     add_cflags -msg_disable nonstandcast

  5670.     add_cflags -msg_disable unsupieee

  5671. elif enabled gcc; then

  5672.     check_optflags -fno-tree-vectorize

  5673.     check_cflags -Werror=format-security

  5674.     check_cflags -Werror=implicit-function-declaration

  5675.     check_cflags -Werror=missing-prototypes

  5676.     check_cflags -Werror=return-type

  5677.     check_cflags -Werror=vla

  5678.     check_cflags -Wformat

  5679.     check_cflags -fdiagnostics-color=auto

  5680.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  5681. elif enabled llvm_gcc; then

  5682.     check_cflags -mllvm -stack-alignment=16

  5683. elif enabled clang; then

  5684.     check_cflags -mllvm -stack-alignment=16

  5685.     check_cflags -Qunused-arguments

  5686.     check_cflags -Werror=implicit-function-declaration

  5687.     check_cflags -Werror=missing-prototypes

  5688.     check_cflags -Werror=return-type

  5689. elif enabled cparser; then

  5690.     add_cflags -Wno-missing-variable-declarations

  5691.     add_cflags -Wno-empty-statement

  5692. elif enabled armcc; then

  5693.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  5694.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  5695.     # 2523: use of inline assembly is deprecated

  5696.     add_cflags -W${armcc_opt},--diag_suppress=2523

  5697.     add_cflags -W${armcc_opt},--diag_suppress=1207

  5698.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  5699.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  5700.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  5701.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  5702. elif enabled tms470; then

  5703.     add_cflags -pds=824 -pds=837

  5704.     disable inline_asm

  5705. elif enabled pathscale; then

  5706.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  5707. elif enabled_any msvc icl; then

  5708.     enabled x86_32 && disable aligned_stack

  5709.     enabled_all x86_32 debug && add_cflags -Oy-

  5710.     enabled debug && add_ldflags -debug

  5711.     enable pragma_deprecated

  5712.     if enabled icl; then

  5713.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  5714.         # (correctly) on icl 13.x.

  5715.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  5716.             add_cflags -Qansi-alias

  5717.         # Some inline asm is not compilable in debug

  5718.         if enabled debug; then

  5719.             disable ebp_available

  5720.             disable ebx_available

  5721.         fi

  5722.     fi

  5723.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  5724.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  5725.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  5726.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  5727.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  5728.     # MSVC 2013 and newer can handle it fine.

  5729.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  5730.     # happens in config.h.

  5731.     if [ $_restrict != restrict ]; then

  5732.         check_cc <<EOF || add_cflags -FIstdlib.h

  5733. __declspec($_restrict) void* foo(int);

  5734. EOF

  5735.     fi

  5736.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5737. fi

  5738. 

  5739. for pfx in "" host_; do

  5740.     varname=${pfx%_}cc_type

  5741.     eval "type=\$$varname"

  5742.     if [ $type = "msvc" ]; then

  5743.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  5744. static inline int foo(int a) { return a; }

  5745. EOF

  5746.     fi

  5747. done

  5748. 

  5749. case $as_type in

  5750.     clang)

  5751.         add_asflags -Qunused-arguments

  5752.     ;;

  5753. esac

  5754. 

  5755. case $ld_type in

  5756.     clang)

  5757.         check_ldflags -Qunused-arguments

  5758.     ;;

  5759. esac

  5760. 

  5761. case $target_os in

  5762.     osf1)

  5763.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  5764.     ;;

  5765.     plan9)

  5766.         add_cppflags -Dmain=plan9_main

  5767.     ;;

  5768. esac

  5769. 

  5770. enable frame_thread_encoder

  5771. 

  5772. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  5773. 

  5774. check_deps $CONFIG_LIST       \

  5775.            $CONFIG_EXTRA      \

  5776.            $HAVE_LIST         \

  5777.            $ALL_COMPONENTS    \

  5778. 

  5779. 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"

  5780. 

  5781. 

  5782. if test $target_os = "haiku"; then

  5783.     disable memalign

  5784.     disable posix_memalign

  5785. fi

  5786. 

  5787. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  5788.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  5789.     enable dxva2_lib

  5790. 

  5791. ! enabled_any memalign posix_memalign aligned_malloc &&

  5792.     enabled simd_align_16 && enable memalign_hack

  5793. 

  5794. # add_dep lib dep

  5795. # -> enable ${lib}_deps_${dep}

  5796. # -> add $dep to ${lib}_deps only once

  5797. add_dep() {

  5798.     lib=$1

  5799.     dep=$2

  5800.     enabled "${lib}_deps_${dep}" && return 0

  5801.     enable  "${lib}_deps_${dep}"

  5802.     prepend "${lib}_deps" $dep

  5803. }

  5804. 

  5805. # merge deps lib components

  5806. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  5807. merge_deps() {

  5808.     lib=$1

  5809.     shift

  5810.     for comp in $*; do

  5811.         enabled $comp || continue

  5812.         eval "dep=\"\$${comp}_deps\""

  5813.         for d in $dep; do

  5814.             add_dep $lib $d

  5815.         done

  5816.     done

  5817. }

  5818. 

  5819. merge_deps libavfilter $FILTER_LIST

  5820. 

  5821. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  5822. 

  5823. for thread in $THREADS_LIST; do

  5824.     if enabled $thread; then

  5825.         test -n "$thread_type" &&

  5826.             die "ERROR: Only one thread type must be selected." ||

  5827.             thread_type="$thread"

  5828.     fi

  5829. done

  5830. 

  5831. enabled zlib && add_cppflags -DZLIB_CONST

  5832. 

  5833. # conditional library dependencies, in linking order

  5834. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  5835. enabled aresample_filter    && prepend avfilter_deps "swresample"

  5836. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  5837. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  5838. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  5839. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  5840. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  5841. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  5842. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  5843. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  5844. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  5845. enabled pan_filter          && prepend avfilter_deps "swresample"

  5846. enabled pp_filter           && prepend avfilter_deps "postproc"

  5847. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  5848. enabled resample_filter && prepend avfilter_deps "avresample"

  5849. enabled sab_filter          && prepend avfilter_deps "swscale"

  5850. enabled scale_filter    && prepend avfilter_deps "swscale"

  5851. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  5852. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  5853. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  5854. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  5855. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  5856. 

  5857. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  5858. 

  5859. enabled opus_decoder    && prepend avcodec_deps "swresample"

  5860. 

  5861. expand_deps(){

  5862.     lib_deps=${1}_deps

  5863.     eval "deps=\$$lib_deps"

  5864.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  5865.     unique $lib_deps

  5866. }

  5867. 

  5868. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  5869. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  5870. 

  5871. map 'expand_deps $v' $LIBRARY_LIST

  5872. 

  5873. echo "install prefix            $prefix"

  5874. echo "source path               $source_path"

  5875. echo "C compiler                $cc"

  5876. echo "C library                 $libc_type"

  5877. if test "$host_cc" != "$cc"; then

  5878.     echo "host C compiler           $host_cc"

  5879.     echo "host C library            $host_libc_type"

  5880. fi

  5881. echo "ARCH                      $arch ($cpu)"

  5882. if test "$build_suffix" != ""; then

  5883.     echo "build suffix              $build_suffix"

  5884. fi

  5885. if test "$progs_suffix" != ""; then

  5886.     echo "progs suffix              $progs_suffix"

  5887. fi

  5888. if test "$extra_version" != ""; then

  5889.     echo "version string suffix     $extra_version"

  5890. fi

  5891. echo "big-endian                ${bigendian-no}"

  5892. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  5893. if enabled x86; then

  5894.     echo "${yasmexe}                      ${yasm-no}"

  5895.     echo "MMX enabled               ${mmx-no}"

  5896.     echo "MMXEXT enabled            ${mmxext-no}"

  5897.     echo "3DNow! enabled            ${amd3dnow-no}"

  5898.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  5899.     echo "SSE enabled               ${sse-no}"

  5900.     echo "SSSE3 enabled             ${ssse3-no}"

  5901.     echo "AVX enabled               ${avx-no}"

  5902.     echo "XOP enabled               ${xop-no}"

  5903.     echo "FMA3 enabled              ${fma3-no}"

  5904.     echo "FMA4 enabled              ${fma4-no}"

  5905.     echo "i686 features enabled     ${i686-no}"

  5906.     echo "CMOV is fast              ${fast_cmov-no}"

  5907.     echo "EBX available             ${ebx_available-no}"

  5908.     echo "EBP available             ${ebp_available-no}"

  5909. fi

  5910. if enabled aarch64; then

  5911.     echo "NEON enabled              ${neon-no}"

  5912.     echo "VFP enabled               ${vfp-no}"

  5913. fi

  5914. if enabled arm; then

  5915.     echo "ARMv5TE enabled           ${armv5te-no}"

  5916.     echo "ARMv6 enabled             ${armv6-no}"

  5917.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  5918.     echo "VFP enabled               ${vfp-no}"

  5919.     echo "NEON enabled              ${neon-no}"

  5920.     echo "THUMB enabled             ${thumb-no}"

  5921. fi

  5922. if enabled mips; then

  5923.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  5924.     echo "MIPS32R5 enabled          ${mips32r5-no}"

  5925.     echo "MIPS64R6 enabled          ${mips64r6-no}"

  5926.     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"

  5927.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  5928.     echo "MIPS MSA enabled          ${msa-no}"

  5929.     echo "LOONGSON MMI enabled      ${mmi-no}"

  5930. fi

  5931. if enabled ppc; then

  5932.     echo "AltiVec enabled           ${altivec-no}"

  5933.     echo "VSX enabled               ${vsx-no}"

  5934.     echo "POWER8 enabled            ${power8-no}"

  5935.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  5936.     echo "dcbzl available           ${dcbzl-no}"

  5937. fi

  5938. echo "debug symbols             ${debug-no}"

  5939. echo "strip symbols             ${stripping-no}"

  5940. echo "optimize for size         ${small-no}"

  5941. echo "optimizations             ${optimizations-no}"

  5942. echo "static                    ${static-no}"

  5943. echo "shared                    ${shared-no}"

  5944. echo "postprocessing support    ${postproc-no}"

  5945. echo "new filter support        ${avfilter-no}"

  5946. echo "network support           ${network-no}"

  5947. echo "threading support         ${thread_type-no}"

  5948. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  5949. echo "SDL support               ${sdl-no}"

  5950. echo "opencl enabled            ${opencl-no}"

  5951. echo "texi2html enabled         ${texi2html-no}"

  5952. echo "perl enabled              ${perl-no}"

  5953. echo "pod2man enabled           ${pod2man-no}"

  5954. echo "makeinfo enabled          ${makeinfo-no}"

  5955. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  5956. test -n "$random_seed" &&

  5957.     echo "random seed               ${random_seed}"

  5958. echo

  5959. 

  5960. echo "Enabled programs:"

  5961. print_enabled '' $PROGRAM_LIST | print_3_columns

  5962. echo

  5963. 

  5964. echo "External libraries:"

  5965. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns

  5966. echo

  5967. 

  5968. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  5969.     echo "Enabled ${type}s:"

  5970.     eval list=\$$(toupper $type)_LIST

  5971.     print_enabled '_*' $list | print_3_columns

  5972.     echo

  5973. done

  5974. 

  5975. license="LGPL version 2.1 or later"

  5976. if enabled nonfree; then

  5977.     license="nonfree and unredistributable"

  5978. elif enabled gplv3; then

  5979.     license="GPL version 3 or later"

  5980. elif enabled lgplv3; then

  5981.     license="LGPL version 3 or later"

  5982. elif enabled gpl; then

  5983.     license="GPL version 2 or later"

  5984. fi

  5985. 

  5986. echo "License: $license"

  5987. 

  5988. echo "Creating config.mak, config.h, and doc/config.texi..."

  5989. 

  5990. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  5991. 

  5992. enabled stripping || strip="echo skipping strip"

  5993. 

  5994. config_files="$TMPH config.mak doc/config.texi"

  5995. 

  5996. cat > config.mak <<EOF

  5997. # Automatically generated by configure - do not modify!

  5998. ifndef FFMPEG_CONFIG_MAK

  5999. FFMPEG_CONFIG_MAK=1

  6000. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6001. prefix=$prefix

  6002. LIBDIR=\$(DESTDIR)$libdir

  6003. SHLIBDIR=\$(DESTDIR)$shlibdir

  6004. INCDIR=\$(DESTDIR)$incdir

  6005. BINDIR=\$(DESTDIR)$bindir

  6006. DATADIR=\$(DESTDIR)$datadir

  6007. DOCDIR=\$(DESTDIR)$docdir

  6008. MANDIR=\$(DESTDIR)$mandir

  6009. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6010. SRC_PATH=$source_path

  6011. ifndef MAIN_MAKEFILE

  6012. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6013. endif

  6014. CC_IDENT=$cc_ident

  6015. ARCH=$arch

  6016. INTRINSICS=$intrinsics

  6017. CC=$cc

  6018. CXX=$cxx

  6019. AS=$as

  6020. LD=$ld

  6021. DEPCC=$dep_cc

  6022. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6023. DEPAS=$as

  6024. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6025. YASM=$yasmexe

  6026. DEPYASM=$yasmexe

  6027. AR=$ar

  6028. ARFLAGS=$arflags

  6029. AR_O=$ar_o

  6030. RANLIB=$ranlib

  6031. STRIP=$strip

  6032. CP=cp -p

  6033. LN_S=$ln_s

  6034. CPPFLAGS=$CPPFLAGS

  6035. CFLAGS=$CFLAGS

  6036. CXXFLAGS=$CXXFLAGS

  6037. ASFLAGS=$ASFLAGS

  6038. AS_C=$AS_C

  6039. AS_O=$AS_O

  6040. CC_C=$CC_C

  6041. CC_E=$CC_E

  6042. CC_O=$CC_O

  6043. CXX_C=$CXX_C

  6044. CXX_O=$CXX_O

  6045. LD_O=$LD_O

  6046. LD_LIB=$LD_LIB

  6047. LD_PATH=$LD_PATH

  6048. DLLTOOL=$dlltool

  6049. WINDRES=$windres

  6050. DEPWINDRES=$dep_cc

  6051. DOXYGEN=$doxygen

  6052. LDFLAGS=$LDFLAGS

  6053. LDEXEFLAGS=$LDEXEFLAGS

  6054. LDLIBFLAGS=$LDLIBFLAGS

  6055. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6056. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6057. YASMFLAGS=$YASMFLAGS

  6058. BUILDSUF=$build_suffix

  6059. PROGSSUF=$progs_suffix

  6060. FULLNAME=$FULLNAME

  6061. LIBPREF=$LIBPREF

  6062. LIBSUF=$LIBSUF

  6063. LIBNAME=$LIBNAME

  6064. SLIBPREF=$SLIBPREF

  6065. SLIBSUF=$SLIBSUF

  6066. EXESUF=$EXESUF

  6067. EXTRA_VERSION=$extra_version

  6068. CCDEP=$CCDEP

  6069. CXXDEP=$CXXDEP

  6070. CCDEP_FLAGS=$CCDEP_FLAGS

  6071. ASDEP=$ASDEP

  6072. ASDEP_FLAGS=$ASDEP_FLAGS

  6073. CC_DEPFLAGS=$CC_DEPFLAGS

  6074. AS_DEPFLAGS=$AS_DEPFLAGS

  6075. HOSTCC=$host_cc

  6076. HOSTLD=$host_ld

  6077. HOSTCFLAGS=$host_cflags

  6078. HOSTCPPFLAGS=$host_cppflags

  6079. HOSTEXESUF=$HOSTEXESUF

  6080. HOSTLDFLAGS=$host_ldflags

  6081. HOSTLIBS=$host_libs

  6082. DEPHOSTCC=$host_cc

  6083. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6084. HOSTCCDEP=$HOSTCCDEP

  6085. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6086. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6087. HOSTCC_C=$HOSTCC_C

  6088. HOSTCC_O=$HOSTCC_O

  6089. HOSTLD_O=$HOSTLD_O

  6090. TARGET_EXEC=$target_exec $target_exec_args

  6091. TARGET_PATH=$target_path

  6092. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6093. CFLAGS-ffplay=$sdl_cflags

  6094. ZLIB=$($ldflags_filter -lz)

  6095. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6096. EXTRALIBS=$extralibs

  6097. COMPAT_OBJS=$compat_objs

  6098. EXEOBJS=$exeobjs

  6099. INSTALL=$install

  6100. LIBTARGET=${LIBTARGET}

  6101. SLIBNAME=${SLIBNAME}

  6102. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6103. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6104. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6105. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6106. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6107. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6108. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6109. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6110. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6111. NOREDZONE_FLAGS=$noredzone_flags

  6112. EOF

  6113. 

  6114. get_version(){

  6115.     lcname=lib${1}

  6116.     name=$(toupper $lcname)

  6117.     file=$source_path/$lcname/version.h

  6118.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6119.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6120.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6121.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6122.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6123.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6124. }

  6125. 

  6126. map 'get_version $v' $LIBRARY_LIST

  6127. 

  6128. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6129. 

  6130. print_program_libs(){

  6131.     eval "program_libs=\$${1}_libs"

  6132.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6133. }

  6134. 

  6135. map 'print_program_libs $v' $PROGRAM_LIST

  6136. 

  6137. cat > $TMPH <<EOF

  6138. /* Automatically generated by configure - do not modify! */

  6139. #ifndef FFMPEG_CONFIG_H

  6140. #define FFMPEG_CONFIG_H

  6141. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6142. #define FFMPEG_LICENSE "$(c_escape $license)"

  6143. #define CONFIG_THIS_YEAR 2015

  6144. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6145. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6146. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6147. #define av_restrict $_restrict

  6148. #define EXTERN_PREFIX "${extern_prefix}"

  6149. #define EXTERN_ASM ${extern_prefix}

  6150. #define BUILDSUF "$build_suffix"

  6151. #define SLIBSUF "$SLIBSUF"

  6152. #define HAVE_MMX2 HAVE_MMXEXT

  6153. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6154. EOF

  6155. 

  6156. test -n "$assert_level" &&

  6157.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6158. 

  6159. test -n "$malloc_prefix" &&

  6160.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6161. 

  6162. if enabled yasm; then

  6163.     append config_files $TMPASM

  6164.     printf '' >$TMPASM

  6165. fi

  6166. 

  6167. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6168. 

  6169. 

  6170. mkdir -p doc

  6171. mkdir -p tests

  6172. mkdir -p tests/api

  6173. echo "@c auto-generated by configure" > doc/config.texi

  6174. 

  6175. print_config ARCH_   "$config_files" $ARCH_LIST

  6176. print_config HAVE_   "$config_files" $HAVE_LIST

  6177. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6178.                                      $CONFIG_EXTRA      \

  6179.                                      $ALL_COMPONENTS    \

  6180. 

  6181. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6182. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6183. 

  6184. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6185. cp_if_changed $TMPH config.h

  6186. touch .config

  6187. 

  6188. enabled yasm && cp_if_changed $TMPASM config.asm

  6189. 

  6190. cat > $TMPH <<EOF

  6191. /* Generated by ffconf */

  6192. #ifndef AVUTIL_AVCONFIG_H

  6193. #define AVUTIL_AVCONFIG_H

  6194. EOF

  6195. 

  6196. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6197. 

  6198. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6199. 

  6200. cp_if_changed $TMPH libavutil/avconfig.h

  6201. 

  6202. if test -n "$WARNINGS"; then

  6203.     printf "\n$WARNINGS"

  6204.     enabled fatal_warnings && exit 1

  6205. fi

  6206. 

  6207. # build pkg-config files

  6208. 

  6209. lib_version(){

  6210.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6211. }

  6212. 

  6213. pkgconfig_generate(){

  6214.     name=$1

  6215.     shortname=${name#lib}${build_suffix}

  6216.     comment=$2

  6217.     version=$3

  6218.     libs=$4

  6219.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6220.     requires=${requires%, }

  6221.     enabled ${name#lib} || return 0

  6222.     mkdir -p $name

  6223.     cat <<EOF > $name/$name${build_suffix}.pc

  6224. prefix=$prefix

  6225. exec_prefix=\${prefix}

  6226. libdir=$libdir

  6227. includedir=$incdir

  6228. 

  6229. Name: $name

  6230. Description: $comment

  6231. Version: $version

  6232. Requires: $(enabled shared || echo $requires)

  6233. Requires.private: $(enabled shared && echo $requires)

  6234. Conflicts:

  6235. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6236. Libs.private: $(enabled shared && echo $libs)

  6237. Cflags: -I\${includedir}

  6238. EOF

  6239. 

  6240. mkdir -p doc/examples/pc-uninstalled

  6241. includedir=${source_path}

  6242. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6243.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6244. prefix=

  6245. exec_prefix=

  6246. libdir=\${pcfiledir}/../../../$name

  6247. includedir=${includedir}

  6248. 

  6249. Name: $name

  6250. Description: $comment

  6251. Version: $version

  6252. Requires: $requires

  6253. Conflicts:

  6254. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6255. Cflags: -I\${includedir}

  6256. EOF

  6257. }

  6258. 

  6259. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6260. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6261. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6262. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6263. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6264. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6265. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6266. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6267. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"