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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.   --quiet                  Suppress showing informative output

  67.   --list-decoders          show all available decoders

  68.   --list-encoders          show all available encoders

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

  70.   --list-demuxers          show all available demuxers

  71.   --list-muxers            show all available muxers

  72.   --list-parsers           show all available parsers

  73.   --list-protocols         show all available protocols

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

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

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

  77.   --list-filters           show all available filters

  78. 

  79. Standard options:

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

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

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

  83.   --prefix=PREFIX          install in PREFIX [$prefix_default]

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

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

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

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

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

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

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

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

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

  93.                            not part of the dynamic linker search path

  94.                            use rpath when linking programs (USE WITH CARE)

  95.   --install-name-dir=DIR   Darwin directory name for installed targets

  96. 

  97. Licensing options:

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

  99.                            and binaries will be under GPL [no]

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

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

  102.                            and binaries will be unredistributable [no]

  103. 

  104. Configuration options:

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

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

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

  108.   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)

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

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

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

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

  113. 

  114. Program options:

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

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

  119.   --disable-ffserver       disable ffserver build

  120. 

  121. Documentation options:

  122.   --disable-doc            do not build documentation

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

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

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

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

  127. 

  128. Component options:

  129.   --disable-avdevice       disable libavdevice build

  130.   --disable-avcodec        disable libavcodec build

  131.   --disable-avformat       disable libavformat build

  132.   --disable-swresample     disable libswresample build

  133.   --disable-swscale        disable libswscale build

  134.   --disable-postproc       disable libpostproc build

  135.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  141.   --disable-dct            disable DCT code

  142.   --disable-dwt            disable DWT code

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

  144.   --disable-lsp            disable LSP code

  145.   --disable-lzo            disable LZO decoder code

  146.   --disable-mdct           disable MDCT code

  147.   --disable-rdft           disable RDFT code

  148.   --disable-fft            disable FFT code

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

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

  151. 

  152. Individual component options:

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

  154.   --disable-encoder=NAME   disable encoder NAME

  155.   --enable-encoder=NAME    enable encoder NAME

  156.   --disable-encoders       disable all encoders

  157.   --disable-decoder=NAME   disable decoder NAME

  158.   --enable-decoder=NAME    enable decoder NAME

  159.   --disable-decoders       disable all decoders

  160.   --disable-hwaccel=NAME   disable hwaccel NAME

  161.   --enable-hwaccel=NAME    enable hwaccel NAME

  162.   --disable-hwaccels       disable all hwaccels

  163.   --disable-muxer=NAME     disable muxer NAME

  164.   --enable-muxer=NAME      enable muxer NAME

  165.   --disable-muxers         disable all muxers

  166.   --disable-demuxer=NAME   disable demuxer NAME

  167.   --enable-demuxer=NAME    enable demuxer NAME

  168.   --disable-demuxers       disable all demuxers

  169.   --enable-parser=NAME     enable parser NAME

  170.   --disable-parser=NAME    disable parser NAME

  171.   --disable-parsers        disable all parsers

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

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

  174.   --disable-bsfs           disable all bitstream filters

  175.   --enable-protocol=NAME   enable protocol NAME

  176.   --disable-protocol=NAME  disable protocol NAME

  177.   --disable-protocols      disable all protocols

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

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

  180.   --disable-indevs         disable input devices

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

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

  183.   --disable-outdevs        disable output devices

  184.   --disable-devices        disable all devices

  185.   --enable-filter=NAME     enable filter NAME

  186.   --disable-filter=NAME    disable filter NAME

  187.   --disable-filters        disable all filters

  188. 

  189. External library support:

  190. 

  191.   Using any of the following switches will allow FFmpeg to link to the

  192.   corresponding external library. All the components depending on that library

  193.   will become enabled, if all their other dependencies are met and they are not

  194.   explicitly disabled. E.g. --enable-libwavpack will enable linking to

  195.   libwavpack and allow the libwavpack encoder to be built, unless it is

  196.   specifically disabled with --disable-encoder=libwavpack.

  197. 

  198.   Note that only the system libraries are auto-detected. All the other external

  199.   libraries must be explicitly enabled.

  200. 

  201.   Also note that the following help text describes the purpose of the libraries

  202.   themselves, not all their features will necessarily be usable by FFmpeg.

  203. 

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

  205.   --disable-bzlib          disable bzlib [autodetect]

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

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

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

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

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

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

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

  213.                            if openssl is not used [no]

  214.   --disable-iconv          disable iconv [autodetect]

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

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

  217.   --enable-libass          enable libass subtitles rendering,

  218.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  225.                            and libraw1394 [no]

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

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

  228.   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]

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

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

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

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

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

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

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

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

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

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

  239.                            native (de)muxer exists [no]

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

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

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

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

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

  245.   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  264.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  280.   --disable-lzma           disable lzma [autodetect]

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

  282.   --enable-mediacodec      enable Android MediaCodec support [no]

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

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

  285.   --enable-opencl          enable OpenCL code

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

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

  288.                            if gnutls is not used [no]

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

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

  291.   --disable-sdl2           disable sdl2 [autodetect]

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

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

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

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

  296. 

  297.   The following libraries provide various hardware acceleration features:

  298.   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]

  299.   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]

  300.   --disable-cuvid          disable Nvidia CUVID support [autodetect]

  301.   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]

  302.   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]

  303.   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]

  304.   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]

  305.   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]

  306.   --disable-nvenc          disable Nvidia video encoding code [autodetect]

  307.   --enable-omx             enable OpenMAX IL code [no]

  308.   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]

  309.   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]

  310.   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]

  311.   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]

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

  313. 

  314. Toolchain options:

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

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

  317.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  332.   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  366. 

  367. Advanced options (experts only):

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

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

  370.   --disable-symver         disable symbol versioning

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

  372.   --disable-safe-bitstream-reader

  373.                            disable buffer boundary checking in bitreaders

  374.                            (faster, but may crash)

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

  376. 

  377. Optimization options (experts only):

  378.   --disable-asm            disable all assembly optimizations

  379.   --disable-altivec        disable AltiVec optimizations

  380.   --disable-vsx            disable VSX optimizations

  381.   --disable-power8         disable POWER8 optimizations

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

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

  384.   --disable-mmx            disable MMX optimizations

  385.   --disable-mmxext         disable MMXEXT optimizations

  386.   --disable-sse            disable SSE optimizations

  387.   --disable-sse2           disable SSE2 optimizations

  388.   --disable-sse3           disable SSE3 optimizations

  389.   --disable-ssse3          disable SSSE3 optimizations

  390.   --disable-sse4           disable SSE4 optimizations

  391.   --disable-sse42          disable SSE4.2 optimizations

  392.   --disable-avx            disable AVX optimizations

  393.   --disable-xop            disable XOP optimizations

  394.   --disable-fma3           disable FMA3 optimizations

  395.   --disable-fma4           disable FMA4 optimizations

  396.   --disable-avx2           disable AVX2 optimizations

  397.   --disable-aesni          disable AESNI optimizations

  398.   --disable-armv5te        disable armv5te optimizations

  399.   --disable-armv6          disable armv6 optimizations

  400.   --disable-armv6t2        disable armv6t2 optimizations

  401.   --disable-vfp            disable VFP optimizations

  402.   --disable-neon           disable NEON optimizations

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

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

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

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

  407.   --disable-msa            disable MSA optimizations

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

  409.   --disable-mmi            disable Loongson SIMD optimizations

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

  411. 

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

  413.   --disable-debug          disable debugging symbols

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

  415.   --disable-optimizations  disable compiler optimizations

  416.   --enable-extra-warnings  enable more compiler warnings

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

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

  419.                            2 causes a slowdown at runtime.

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

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

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

  423.                            Cannot be combined with --target-exec

  424.   --enable-ftrapv          Trap arithmetic overflows

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

  426.                            \$FATE_SAMPLES at make invocation time.

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

  428.                            used only for debugging purposes)

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

  430.                            should be used only for debugging purposes)

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

  432.   --disable-random

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

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

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

  436.                            (group) and PROB the probability associated with

  437.                            NAME (default 0.5).

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

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

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

  441.   --enable-osfuzz          Enable building fuzzer tool

  442.   --libfuzzer=PATH         path to libfuzzer

  443. 

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

  445. EOF

  446.   exit 0

  447. }

  448. 

  449. quotes='""'

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

  451.     ncolors=$(tput colors)

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

  453.         bold_color=$(tput bold)

  454.         warn_color=$(tput setaf 3)

  455.         error_color=$(tput setaf 1)

  456.         reset_color=$(tput sgr0)

  457.     fi

  458.     # 72 used instead of 80 since that's the default of pr

  459.     ncols=$(tput cols)

  460. fi

  461. : ${ncols:=72}

  462. 

  463. log(){

  464.     echo "$@" >> $logfile

  465. }

  466. 

  467. log_file(){

  468.     log BEGIN $1

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

  470.     log END $1

  471. }

  472. 

  473. warn(){

  474.     log "WARNING: $*"

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

  476. }

  477. 

  478. die(){

  479.     log "$@"

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

  481.     cat <<EOF

  482. 

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

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

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

  486. EOF

  487.     if disabled logging; then

  488.         cat <<EOF

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

  490. include the log this produces with your report.

  491. EOF

  492.     else

  493.         cat <<EOF

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

  495. solve the problem.

  496. EOF

  497.     fi

  498.     exit 1

  499. }

  500. 

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

  502. toupper(){

  503.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  504. }

  505. 

  506. tolower(){

  507.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  508. }

  509. 

  510. c_escape(){

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

  512. }

  513. 

  514. sh_quote(){

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

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

  517.     echo "$v"

  518. }

  519. 

  520. cleanws(){

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

  522. }

  523. 

  524. filter(){

  525.     pat=$1

  526.     shift

  527.     for v; do

  528.         eval "case $v in $pat) printf '%s ' $v ;; esac"

  529.     done

  530. }

  531. 

  532. filter_out(){

  533.     pat=$1

  534.     shift

  535.     for v; do

  536.         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"

  537.     done

  538. }

  539. 

  540. map(){

  541.     m=$1

  542.     shift

  543.     for v; do eval $m; done

  544. }

  545. 

  546. add_suffix(){

  547.     suffix=$1

  548.     shift

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

  550. }

  551. 

  552. set_all(){

  553.     value=$1

  554.     shift

  555.     for var in $*; do

  556.         eval $var=$value

  557.     done

  558. }

  559. 

  560. set_weak(){

  561.     value=$1

  562.     shift

  563.     for var; do

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

  565.     done

  566. }

  567. 

  568. sanitize_var_name(){

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

  570. }

  571. 

  572. set_safe(){

  573.     var=$1

  574.     shift

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

  576. }

  577. 

  578. get_safe(){

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

  580. }

  581. 

  582. pushvar(){

  583.     for pvar in $*; do

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

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

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

  587.     done

  588. }

  589. 

  590. popvar(){

  591.     for pvar in $*; do

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

  593.         test $level = 0 && continue

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

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

  596.         eval ${pvar}_level=$level

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

  598.     done

  599. }

  600. 

  601. request(){

  602.     for var in $*; do

  603.         eval ${var}_requested=yes

  604.         eval $var=

  605.     done

  606. }

  607. 

  608. enable(){

  609.     set_all yes $*

  610. }

  611. 

  612. disable(){

  613.     set_all no $*

  614. }

  615. 

  616. enable_weak(){

  617.     set_weak yes $*

  618. }

  619. 

  620. disable_weak(){

  621.     set_weak no $*

  622. }

  623. 

  624. enable_safe(){

  625.     for var; do

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

  627.     done

  628. }

  629. 

  630. disable_safe(){

  631.     for var; do

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

  633.     done

  634. }

  635. 

  636. do_enable_deep(){

  637.     for var; do

  638.         enabled $var && continue

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

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

  641.         pushvar var sgs

  642.         enable_deep $sel

  643.         popvar sgs

  644.         enable_deep_weak $sgs

  645.         popvar var

  646.     done

  647. }

  648. 

  649. enable_deep(){

  650.     do_enable_deep $*

  651.     enable $*

  652. }

  653. 

  654. enable_deep_weak(){

  655.     for var; do

  656.         disabled $var && continue

  657.         pushvar var

  658.         do_enable_deep $var

  659.         popvar var

  660.         enable_weak $var

  661.     done

  662. }

  663. 

  664. requested(){

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

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

  667. }

  668. 

  669. enabled(){

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

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

  672. }

  673. 

  674. disabled(){

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

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

  677. }

  678. 

  679. enabled_all(){

  680.     for opt; do

  681.         enabled $opt || return 1

  682.     done

  683. }

  684. 

  685. disabled_all(){

  686.     for opt; do

  687.         disabled $opt || return 1

  688.     done

  689. }

  690. 

  691. enabled_any(){

  692.     for opt; do

  693.         enabled $opt && return 0

  694.     done

  695. }

  696. 

  697. disabled_any(){

  698.     for opt; do

  699.         disabled $opt && return 0

  700.     done

  701.     return 1

  702. }

  703. 

  704. set_default(){

  705.     for opt; do

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

  707.     done

  708. }

  709. 

  710. is_in(){

  711.     value=$1

  712.     shift

  713.     for var in $*; do

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

  715.     done

  716.     return 1

  717. }

  718. 

  719. do_check_deps(){

  720.     for cfg; do

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

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

  723.         disabled ${cfg}_checking && continue

  724.         enable ${cfg}_checking

  725.         append allopts $cfg

  726. 

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

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

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

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

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

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

  733. 

  734.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  736.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  737. 

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

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

  740.         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }

  741.         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }

  742.         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }

  743. 

  744.         if enabled $cfg; then

  745.             enable_deep $dep_sel

  746.             enable_deep_weak $dep_sgs

  747.         fi

  748. 

  749.         disable ${cfg}_checking

  750.     done

  751. }

  752. 

  753. check_deps(){

  754.     unset allopts

  755. 

  756.     do_check_deps "$@"

  757. 

  758.     for cfg in $allopts; do

  759.         enabled $cfg || continue

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

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

  762.     done

  763. }

  764. 

  765. print_config(){

  766.     pfx=$1

  767.     files=$2

  768.     shift 2

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

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

  771.         {

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

  773.             v = \$2;

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

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

  776.             for (f in files) {

  777.                 file = files[f];

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

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

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

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

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

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

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

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

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

  787.                     yesno = \$2;

  788.                     c2 = tolower(c);

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

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

  791.                 }

  792.             }

  793.         }"

  794. }

  795. 

  796. print_enabled(){

  797.     suf=$1

  798.     shift

  799.     for v; do

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

  801.     done

  802. }

  803. 

  804. append(){

  805.     var=$1

  806.     shift

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

  808. }

  809. 

  810. prepend(){

  811.     var=$1

  812.     shift

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

  814. }

  815. 

  816. unique(){

  817.     var=$1

  818.     uniq_list=""

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

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

  821.     done

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

  823. }

  824. 

  825. add_cppflags(){

  826.     append CPPFLAGS "$@"

  827. }

  828. 

  829. add_cflags(){

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

  831. }

  832. 

  833. add_cflags_headers(){

  834.     append CFLAGS_HEADERS $($cflags_filter "$@")

  835. }

  836. 

  837. add_cxxflags(){

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

  839. }

  840. 

  841. add_asflags(){

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

  843. }

  844. 

  845. add_objcflags(){

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

  847. }

  848. 

  849. add_ldflags(){

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

  851. }

  852. 

  853. add_ldexeflags(){

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

  855. }

  856. 

  857. add_ldlibflags(){

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

  859. }

  860. 

  861. add_stripflags(){

  862.     append ASMSTRIPFLAGS "$@"

  863. }

  864. 

  865. add_extralibs(){

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

  867. }

  868. 

  869. add_host_cppflags(){

  870.     append host_cppflags "$@"

  871. }

  872. 

  873. add_host_cflags(){

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

  875. }

  876. 

  877. add_host_ldflags(){

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

  879. }

  880. 

  881. add_compat(){

  882.     append compat_objs $1

  883.     shift

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

  885. }

  886. 

  887. check_cmd(){

  888.     log "$@"

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

  890. }

  891. 

  892. check_stat(){

  893.     log check_stat "$@"

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

  895. }

  896. 

  897. cc_o(){

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

  899. }

  900. 

  901. cc_e(){

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

  903. }

  904. 

  905. check_cc(){

  906.     log check_cc "$@"

  907.     cat > $TMPC

  908.     log_file $TMPC

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

  910. }

  911. 

  912. check_cxx(){

  913.     log check_cxx "$@"

  914.     cat > $TMPCPP

  915.     log_file $TMPCPP

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

  917. }

  918. 

  919. check_objcc(){

  920.     log check_objcc "$@"

  921.     cat > $TMPM

  922.     log_file $TMPM

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

  924. }

  925. 

  926. check_cpp(){

  927.     log check_cpp "$@"

  928.     cat > $TMPC

  929.     log_file $TMPC

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

  931. }

  932. 

  933. as_o(){

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

  935. }

  936. 

  937. check_as(){

  938.     log check_as "$@"

  939.     cat > $TMPS

  940.     log_file $TMPS

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

  942. }

  943. 

  944. check_inline_asm(){

  945.     log check_inline_asm "$@"

  946.     name="$1"

  947.     code="$2"

  948.     shift 2

  949.     disable $name

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

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

  952. EOF

  953. }

  954. 

  955. check_inline_asm_flags(){

  956.     log check_inline_asm_flags "$@"

  957.     name="$1"

  958.     code="$2"

  959.     flags=''

  960.     shift 2

  961.     while [ "$1" != "" ]; do

  962.       append flags $1

  963.       shift

  964.     done;

  965.     disable $name

  966.     cat > $TMPC <<EOF

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

  968. EOF

  969.     log_file $TMPC

  970.     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&

  971.     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags

  972. }

  973. 

  974. check_insn(){

  975.     log check_insn "$@"

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

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

  978. }

  979. 

  980. check_yasm(){

  981.     log check_yasm "$@"

  982.     echo "$1" > $TMPS

  983.     log_file $TMPS

  984.     shift 1

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

  986. }

  987. 

  988. ld_o(){

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

  990. }

  991. 

  992. check_ld(){

  993.     log check_ld "$@"

  994.     type=$1

  995.     shift 1

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

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

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

  999.     flags=$($ldflags_filter $flags)

  1000.     libs=$($ldflags_filter $libs)

  1001.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1002. }

  1003. 

  1004. print_include(){

  1005.     hdr=$1

  1006.     test "${hdr%.h}" = "${hdr}" &&

  1007.         echo "#include $hdr"    ||

  1008.         echo "#include <$hdr>"

  1009. }

  1010. 

  1011. check_code(){

  1012.     log check_code "$@"

  1013.     check=$1

  1014.     headers=$2

  1015.     code=$3

  1016.     shift 3

  1017.     {

  1018.         for hdr in $headers; do

  1019.             print_include $hdr

  1020.         done

  1021.         echo "int main(void) { $code; return 0; }"

  1022.     } | check_$check "$@"

  1023. }

  1024. 

  1025. check_cppflags(){

  1026.     log check_cppflags "$@"

  1027.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1028. int x;

  1029. EOF

  1030. }

  1031. 

  1032. test_cflags(){

  1033.     log test_cflags "$@"

  1034.     set -- $($cflags_filter "$@")

  1035.     check_cc "$@" <<EOF

  1036. int x;

  1037. EOF

  1038. }

  1039. 

  1040. check_cflags(){

  1041.     log check_cflags "$@"

  1042.     test_cflags "$@" && add_cflags "$@"

  1043. }

  1044. 

  1045. check_cxxflags(){

  1046.     log check_cxxflags "$@"

  1047.     set -- $($cflags_filter "$@")

  1048.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1049. int x;

  1050. EOF

  1051. }

  1052. 

  1053. test_objcflags(){

  1054.     log test_objcflags "$@"

  1055.     set -- $($objcflags_filter "$@")

  1056.     check_objcc "$@" <<EOF

  1057. int x;

  1058. EOF

  1059. }

  1060. 

  1061. check_objcflags(){

  1062.     log check_objcflags "$@"

  1063.     test_objcflags "$@" && add_objcflags "$@"

  1064. }

  1065. 

  1066. test_ldflags(){

  1067.     log test_ldflags "$@"

  1068.     check_ld "cc" "$@" <<EOF

  1069. int main(void){ return 0; }

  1070. EOF

  1071. }

  1072. 

  1073. check_ldflags(){

  1074.     log check_ldflags "$@"

  1075.     test_ldflags "$@" && add_ldflags "$@"

  1076. }

  1077. 

  1078. test_stripflags(){

  1079.     log test_stripflags "$@"

  1080.     # call check_cc to get a fresh TMPO

  1081.     check_cc <<EOF

  1082. int main(void) { return 0; }

  1083. EOF

  1084.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1085. }

  1086. 

  1087. check_stripflags(){

  1088.     log check_stripflags "$@"

  1089.     test_stripflags "$@" && add_stripflags "$@"

  1090. }

  1091. 

  1092. check_header(){

  1093.     log check_header "$@"

  1094.     header=$1

  1095.     shift

  1096.     disable_safe $header

  1097.     check_cpp "$@" <<EOF && enable_safe $header

  1098. #include <$header>

  1099. int x;

  1100. EOF

  1101. }

  1102. 

  1103. check_header_objcc(){

  1104.     log check_header_objcc "$@"

  1105.     rm -f -- "$TMPO"

  1106.     header=$1

  1107.     shift

  1108.     disable_safe $header

  1109.     {

  1110.        echo "#include <$header>"

  1111.        echo "int main(void) { return 0; }"

  1112.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1113. }

  1114. 

  1115. check_func(){

  1116.     log check_func "$@"

  1117.     func=$1

  1118.     shift

  1119.     disable $func

  1120.     check_ld "cc" "$@" <<EOF && enable $func

  1121. extern int $func();

  1122. int main(void){ $func(); }

  1123. EOF

  1124. }

  1125. 

  1126. check_complexfunc(){

  1127.     log check_complexfunc "$@"

  1128.     func=$1

  1129.     narg=$2

  1130.     shift 2

  1131.     test $narg = 2 && args="f, g" || args="f * I"

  1132.     disable $func

  1133.     check_ld "cc" "$@" <<EOF && enable $func

  1134. #include <complex.h>

  1135. #include <math.h>

  1136. float foo(complex float f, complex float g) { return $func($args); }

  1137. int main(void){ return (int) foo; }

  1138. EOF

  1139. }

  1140. 

  1141. check_mathfunc(){

  1142.     log check_mathfunc "$@"

  1143.     func=$1

  1144.     narg=$2

  1145.     shift 2

  1146.     test $narg = 2 && args="f, g" || args="f"

  1147.     disable $func

  1148.     check_ld "cc" "$@" <<EOF && enable $func

  1149. #include <math.h>

  1150. float foo(float f, float g) { return $func($args); }

  1151. int main(void){ return (int) foo; }

  1152. EOF

  1153. }

  1154. 

  1155. check_func_headers(){

  1156.     log check_func_headers "$@"

  1157.     headers=$1

  1158.     funcs=$2

  1159.     shift 2

  1160.     {

  1161.         for hdr in $headers; do

  1162.             print_include $hdr

  1163.         done

  1164.         echo "#include <stdint.h>"

  1165.         for func in $funcs; do

  1166.             echo "long check_$func(void) { return (long) $func; }"

  1167.         done

  1168.         echo "int main(void) { int ret = 0;"

  1169.         # LTO could optimize out the test functions without this

  1170.         for func in $funcs; do

  1171.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1172.         done

  1173.         echo "return ret; }"

  1174.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1175. }

  1176. 

  1177. check_class_headers_cpp(){

  1178.     log check_class_headers_cpp "$@"

  1179.     headers=$1

  1180.     classes=$2

  1181.     shift 2

  1182.     {

  1183.         for hdr in $headers; do

  1184.             echo "#include <$hdr>"

  1185.         done

  1186.         echo "int main(void) { "

  1187.         i=1

  1188.         for class in $classes; do

  1189.             echo "$class obj$i;"

  1190.             i=$(expr $i + 1)

  1191.         done

  1192.         echo "return 0; }"

  1193.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1194. }

  1195. 

  1196. check_cpp_condition(){

  1197.     log check_cpp_condition "$@"

  1198.     header=$1

  1199.     condition=$2

  1200.     shift 2

  1201.     check_cpp "$@" <<EOF

  1202. #include <$header>

  1203. #if !($condition)

  1204. #error "unsatisfied condition: $condition"

  1205. #endif

  1206. EOF

  1207. }

  1208. 

  1209. test_cflags_cc(){

  1210.     log test_cflags_cc "$@"

  1211.     flags=$1

  1212.     header=$2

  1213.     condition=$3

  1214.     shift 3

  1215.     set -- $($cflags_filter "$flags")

  1216.     check_cc "$@" <<EOF

  1217. #include <$header>

  1218. #if !($condition)

  1219. #error "unsatisfied condition: $condition"

  1220. #endif

  1221. EOF

  1222. }

  1223. 

  1224. check_lib(){

  1225.     log check_lib "$@"

  1226.     headers="$1"

  1227.     funcs="$2"

  1228.     shift 2

  1229.     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"

  1230. }

  1231. 

  1232. check_lib_cpp(){

  1233.     log check_lib_cpp "$@"

  1234.     headers="$1"

  1235.     classes="$2"

  1236.     shift 2

  1237.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1238. }

  1239. 

  1240. check_pkg_config(){

  1241.     log check_pkg_config "$@"

  1242.     pkg_version="$1"

  1243.     pkg="${1%% *}"

  1244.     headers="$2"

  1245.     funcs="$3"

  1246.     shift 3

  1247.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1248.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1249.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1250.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1251.         set_safe "${pkg}_cflags"    $pkg_cflags &&

  1252.         set_safe "${pkg}_extralibs" $pkg_libs

  1253. }

  1254. 

  1255. check_exec(){

  1256.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1257. }

  1258. 

  1259. check_exec_crash(){

  1260.     log check_exec_crash "$@"

  1261.     code=$(cat)

  1262. 

  1263.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1264.     # are safe but may not be available everywhere.  Thus we use

  1265.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1266.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1267.     # is not defined by standard C so it is used conditionally.

  1268. 

  1269.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1270. #include <signal.h>

  1271. static void sighandler(int sig){

  1272.     raise(SIGTERM);

  1273. }

  1274. int foo(void){

  1275.     $code

  1276. }

  1277. int (*func_ptr)(void) = foo;

  1278. int main(void){

  1279.     signal(SIGILL, sighandler);

  1280.     signal(SIGFPE, sighandler);

  1281.     signal(SIGSEGV, sighandler);

  1282. #ifdef SIGBUS

  1283.     signal(SIGBUS, sighandler);

  1284. #endif

  1285.     return func_ptr();

  1286. }

  1287. EOF

  1288. }

  1289. 

  1290. check_type(){

  1291.     log check_type "$@"

  1292.     headers=$1

  1293.     type=$2

  1294.     shift 2

  1295.     disable_safe "$type"

  1296.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1297. }

  1298. 

  1299. check_struct(){

  1300.     log check_struct "$@"

  1301.     headers=$1

  1302.     struct=$2

  1303.     member=$3

  1304.     shift 3

  1305.     disable_safe "${struct}_${member}"

  1306.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1307.         enable_safe "${struct}_${member}"

  1308. }

  1309. 

  1310. check_builtin(){

  1311.     log check_builtin "$@"

  1312.     name=$1

  1313.     headers=$2

  1314.     builtin=$3

  1315.     shift 3

  1316.     disable "$name"

  1317.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1318. }

  1319. 

  1320. check_compile_assert(){

  1321.     log check_compile_assert "$@"

  1322.     name=$1

  1323.     headers=$2

  1324.     condition=$3

  1325.     shift 3

  1326.     disable "$name"

  1327.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1328. }

  1329. 

  1330. require(){

  1331.     log require "$@"

  1332.     name_version="$1"

  1333.     headers="$2"

  1334.     func="$3"

  1335.     shift 3

  1336.     check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"

  1337. }

  1338. 

  1339. require_cpp(){

  1340.     name="$1"

  1341.     headers="$2"

  1342.     classes="$3"

  1343.     shift 3

  1344.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1345. }

  1346. 

  1347. use_pkg_config(){

  1348.     log use_pkg_config "$@"

  1349.     pkg="$1"

  1350.     check_pkg_config "$@" || return 1

  1351.     add_cflags    $(get_safe "${pkg}_cflags")

  1352.     add_extralibs $(get_safe "${pkg}_extralibs")

  1353. }

  1354. 

  1355. require_pkg_config(){

  1356.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1357. }

  1358. 

  1359. hostcc_e(){

  1360.     eval printf '%s\\n' $HOSTCC_E

  1361. }

  1362. 

  1363. hostcc_o(){

  1364.     eval printf '%s\\n' $HOSTCC_O

  1365. }

  1366. 

  1367. check_host_cc(){

  1368.     log check_host_cc "$@"

  1369.     cat > $TMPC

  1370.     log_file $TMPC

  1371.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1372. }

  1373. 

  1374. check_host_cpp(){

  1375.     log check_host_cpp "$@"

  1376.     cat > $TMPC

  1377.     log_file $TMPC

  1378.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1379. }

  1380. 

  1381. check_host_cppflags(){

  1382.     log check_host_cppflags "$@"

  1383.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1384. int x;

  1385. EOF

  1386. }

  1387. 

  1388. check_host_cflags(){

  1389.     log check_host_cflags "$@"

  1390.     set -- $($host_cflags_filter "$@")

  1391.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1392. int x;

  1393. EOF

  1394. }

  1395. 

  1396. check_host_cpp_condition(){

  1397.     log check_host_cpp_condition "$@"

  1398.     header=$1

  1399.     condition=$2

  1400.     shift 2

  1401.     check_host_cpp "$@" <<EOF

  1402. #include <$header>

  1403. #if !($condition)

  1404. #error "unsatisfied condition: $condition"

  1405. #endif

  1406. EOF

  1407. }

  1408. 

  1409. cp_if_changed(){

  1410.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1411.     mkdir -p "$(dirname $2)"

  1412.     cp -f "$1" "$2"

  1413. }

  1414. 

  1415. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1416. # system-dependent things.

  1417. 

  1418. AVCODEC_COMPONENTS="

  1419.     bsfs

  1420.     decoders

  1421.     encoders

  1422.     hwaccels

  1423.     parsers

  1424. "

  1425. 

  1426. AVDEVICE_COMPONENTS="

  1427.     indevs

  1428.     outdevs

  1429. "

  1430. AVFILTER_COMPONENTS="

  1431.     filters

  1432. "

  1433. AVFORMAT_COMPONENTS="

  1434.     demuxers

  1435.     muxers

  1436.     protocols

  1437. "

  1438. 

  1439. AVRESAMPLE_COMPONENTS=""

  1440. AVUTIL_COMPONENTS=""

  1441. 

  1442. COMPONENT_LIST="

  1443.     $AVCODEC_COMPONENTS

  1444.     $AVDEVICE_COMPONENTS

  1445.     $AVFILTER_COMPONENTS

  1446.     $AVFORMAT_COMPONENTS

  1447.     $AVRESAMPLE_COMPONENTS

  1448.     $AVUTIL_COMPONENTS

  1449. "

  1450. 

  1451. EXAMPLE_LIST="

  1452.     avio_dir_cmd_example

  1453.     avio_reading_example

  1454.     decode_audio_example

  1455.     decode_video_example

  1456.     demuxing_decoding_example

  1457.     encode_audio_example

  1458.     encode_video_example

  1459.     extract_mvs_example

  1460.     filter_audio_example

  1461.     filtering_audio_example

  1462.     filtering_video_example

  1463.     http_multiclient_example

  1464.     metadata_example

  1465.     muxing_example

  1466.     qsvdec_example

  1467.     remuxing_example

  1468.     resampling_audio_example

  1469.     scaling_video_example

  1470.     transcode_aac_example

  1471.     transcoding_example

  1472. "

  1473. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1474.     bzlib

  1475.     iconv

  1476.     libxcb

  1477.     libxcb_shm

  1478.     libxcb_shape

  1479.     libxcb_xfixes

  1480.     lzma

  1481.     schannel

  1482.     sdl

  1483.     sdl2

  1484.     securetransport

  1485.     xlib

  1486.     zlib

  1487. "

  1488. 

  1489. EXTERNAL_LIBRARY_GPL_LIST="

  1490.     avisynth

  1491.     frei0r

  1492.     libcdio

  1493.     librubberband

  1494.     libvidstab

  1495.     libx264

  1496.     libx265

  1497.     libxavs

  1498.     libxvid

  1499. "

  1500. 

  1501. EXTERNAL_LIBRARY_NONFREE_LIST="

  1502.     decklink

  1503.     libfdk_aac

  1504.     openssl

  1505. "

  1506. 

  1507. EXTERNAL_LIBRARY_VERSION3_LIST="

  1508.     gmp

  1509.     libopencore_amrnb

  1510.     libopencore_amrwb

  1511.     libvo_amrwbenc

  1512. "

  1513. 

  1514. EXTERNAL_LIBRARY_GPLV3_LIST="

  1515.     libsmbclient

  1516. "

  1517. 

  1518. EXTERNAL_LIBRARY_LIST="

  1519.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1520.     $EXTERNAL_LIBRARY_GPL_LIST

  1521.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1522.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1523.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1524.     chromaprint

  1525.     crystalhd

  1526.     gcrypt

  1527.     gnutls

  1528.     jni

  1529.     ladspa

  1530.     libass

  1531.     libbluray

  1532.     libbs2b

  1533.     libcaca

  1534.     libcelt

  1535.     libdc1394

  1536.     libflite

  1537.     libfontconfig

  1538.     libfreetype

  1539.     libfribidi

  1540.     libgme

  1541.     libgsm

  1542.     libiec61883

  1543.     libilbc

  1544.     libkvazaar

  1545.     libmodplug

  1546.     libmp3lame

  1547.     libnut

  1548.     libopencv

  1549.     libopenh264

  1550.     libopenjpeg

  1551.     libopenmpt

  1552.     libopus

  1553.     libpulse

  1554.     librtmp

  1555.     libschroedinger

  1556.     libshine

  1557.     libsmbclient

  1558.     libsnappy

  1559.     libsoxr

  1560.     libspeex

  1561.     libssh

  1562.     libtesseract

  1563.     libtheora

  1564.     libtwolame

  1565.     libv4l2

  1566.     libvorbis

  1567.     libvpx

  1568.     libwavpack

  1569.     libwebp

  1570.     libzimg

  1571.     libzmq

  1572.     libzvbi

  1573.     mediacodec

  1574.     netcdf

  1575.     openal

  1576.     opencl

  1577.     opengl

  1578.     videotoolbox

  1579. "

  1580. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1581.     audiotoolbox

  1582.     cuda

  1583.     cuvid

  1584.     d3d11va

  1585.     dxva2

  1586.     nvenc

  1587.     vaapi

  1588.     vda

  1589.     vdpau

  1590.     videotoolbox_hwaccel

  1591.     xvmc

  1592. "

  1593. 

  1594. HWACCEL_LIBRARY_NONFREE_LIST="

  1595.     libnpp

  1596. "

  1597. 

  1598. HWACCEL_LIBRARY_LIST="

  1599.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1600.     $HWACCEL_LIBRARY_NONFREE_LIST

  1601.     libmfx

  1602.     mmal

  1603.     omx

  1604. "

  1605. 

  1606. DOCUMENT_LIST="

  1607.     doc

  1608.     htmlpages

  1609.     manpages

  1610.     podpages

  1611.     txtpages

  1612. "

  1613. 

  1614. FEATURE_LIST="

  1615.     ftrapv

  1616.     gray

  1617.     hardcoded_tables

  1618.     omx_rpi

  1619.     runtime_cpudetect

  1620.     safe_bitstream_reader

  1621.     shared

  1622.     small

  1623.     static

  1624.     swscale_alpha

  1625. "

  1626. 

  1627. LIBRARY_LIST="

  1628.     avcodec

  1629.     avdevice

  1630.     avfilter

  1631.     avformat

  1632.     avresample

  1633.     avutil

  1634.     postproc

  1635.     swresample

  1636.     swscale

  1637. "

  1638. 

  1639. LICENSE_LIST="

  1640.     gpl

  1641.     nonfree

  1642.     version3

  1643. "

  1644. 

  1645. PROGRAM_LIST="

  1646.     ffplay

  1647.     ffprobe

  1648.     ffserver

  1649.     ffmpeg

  1650. "

  1651. 

  1652. SUBSYSTEM_LIST="

  1653.     dct

  1654.     dwt

  1655.     error_resilience

  1656.     faan

  1657.     fast_unaligned

  1658.     fft

  1659.     lsp

  1660.     lzo

  1661.     mdct

  1662.     pixelutils

  1663.     network

  1664.     rdft

  1665. "

  1666. 

  1667. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1668. CONFIG_LIST="

  1669.     $DOCUMENT_LIST

  1670.     $EXAMPLE_LIST

  1671.     $EXTERNAL_LIBRARY_LIST

  1672.     $HWACCEL_LIBRARY_LIST

  1673.     $FEATURE_LIST

  1674.     $LICENSE_LIST

  1675.     $LIBRARY_LIST

  1676.     $PROGRAM_LIST

  1677.     $SUBSYSTEM_LIST

  1678.     fontconfig

  1679.     memory_poisoning

  1680.     neon_clobber_test

  1681.     ossfuzz

  1682.     pic

  1683.     raise_major

  1684.     thumb

  1685.     valgrind_backtrace

  1686.     xmm_clobber_test

  1687.     $COMPONENT_LIST

  1688. "

  1689. 

  1690. THREADS_LIST="

  1691.     pthreads

  1692.     os2threads

  1693.     w32threads

  1694. "

  1695. 

  1696. ATOMICS_LIST="

  1697.     atomics_gcc

  1698.     atomics_suncc

  1699.     atomics_win32

  1700. "

  1701. 

  1702. AUTODETECT_LIBS="

  1703.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1704.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1705.     $THREADS_LIST

  1706. "

  1707. 

  1708. ARCH_LIST="

  1709.     aarch64

  1710.     alpha

  1711.     arm

  1712.     avr32

  1713.     avr32_ap

  1714.     avr32_uc

  1715.     bfin

  1716.     ia64

  1717.     m68k

  1718.     mips

  1719.     mips64

  1720.     parisc

  1721.     ppc

  1722.     ppc64

  1723.     s390

  1724.     sh4

  1725.     sparc

  1726.     sparc64

  1727.     tilegx

  1728.     tilepro

  1729.     tomi

  1730.     x86

  1731.     x86_32

  1732.     x86_64

  1733. "

  1734. 

  1735. ARCH_EXT_LIST_ARM="

  1736.     armv5te

  1737.     armv6

  1738.     armv6t2

  1739.     armv8

  1740.     neon

  1741.     vfp

  1742.     vfpv3

  1743.     setend

  1744. "

  1745. 

  1746. ARCH_EXT_LIST_MIPS="

  1747.     mipsfpu

  1748.     mips32r2

  1749.     mips32r5

  1750.     mips64r2

  1751.     mips32r6

  1752.     mips64r6

  1753.     mipsdsp

  1754.     mipsdspr2

  1755.     msa

  1756. "

  1757. 

  1758. ARCH_EXT_LIST_LOONGSON="

  1759.     loongson2

  1760.     loongson3

  1761.     mmi

  1762. "

  1763. 

  1764. ARCH_EXT_LIST_X86_SIMD="

  1765.     aesni

  1766.     amd3dnow

  1767.     amd3dnowext

  1768.     avx

  1769.     avx2

  1770.     fma3

  1771.     fma4

  1772.     mmx

  1773.     mmxext

  1774.     sse

  1775.     sse2

  1776.     sse3

  1777.     sse4

  1778.     sse42

  1779.     ssse3

  1780.     xop

  1781. "

  1782. 

  1783. ARCH_EXT_LIST_PPC="

  1784.     altivec

  1785.     dcbzl

  1786.     ldbrx

  1787.     power8

  1788.     ppc4xx

  1789.     vsx

  1790. "

  1791. 

  1792. ARCH_EXT_LIST_X86="

  1793.     $ARCH_EXT_LIST_X86_SIMD

  1794.     cpunop

  1795.     i686

  1796. "

  1797. 

  1798. ARCH_EXT_LIST="

  1799.     $ARCH_EXT_LIST_ARM

  1800.     $ARCH_EXT_LIST_PPC

  1801.     $ARCH_EXT_LIST_X86

  1802.     $ARCH_EXT_LIST_MIPS

  1803.     $ARCH_EXT_LIST_LOONGSON

  1804. "

  1805. 

  1806. ARCH_FEATURES="

  1807.     aligned_stack

  1808.     fast_64bit

  1809.     fast_clz

  1810.     fast_cmov

  1811.     local_aligned_8

  1812.     local_aligned_16

  1813.     local_aligned_32

  1814.     simd_align_16

  1815.     simd_align_32

  1816. "

  1817. 

  1818. BUILTIN_LIST="

  1819.     atomic_cas_ptr

  1820.     machine_rw_barrier

  1821.     MemoryBarrier

  1822.     mm_empty

  1823.     rdtsc

  1824.     sarestart

  1825.     sem_timedwait

  1826.     sync_val_compare_and_swap

  1827. "

  1828. HAVE_LIST_CMDLINE="

  1829.     inline_asm

  1830.     symver

  1831.     yasm

  1832. "

  1833. 

  1834. HAVE_LIST_PUB="

  1835.     bigendian

  1836.     fast_unaligned

  1837. "

  1838. 

  1839. HEADERS_LIST="

  1840.     alsa_asoundlib_h

  1841.     altivec_h

  1842.     arpa_inet_h

  1843.     asm_types_h

  1844.     cdio_paranoia_h

  1845.     cdio_paranoia_paranoia_h

  1846.     cuda_h

  1847.     d3d11_h

  1848.     dispatch_dispatch_h

  1849.     dev_bktr_ioctl_bt848_h

  1850.     dev_bktr_ioctl_meteor_h

  1851.     dev_ic_bt8xx_h

  1852.     dev_video_bktr_ioctl_bt848_h

  1853.     dev_video_meteor_ioctl_meteor_h

  1854.     direct_h

  1855.     dirent_h

  1856.     dlfcn_h

  1857.     dxva_h

  1858.     ES2_gl_h

  1859.     gsm_h

  1860.     io_h

  1861.     mach_mach_time_h

  1862.     machine_ioctl_bt848_h

  1863.     machine_ioctl_meteor_h

  1864.     malloc_h

  1865.     opencv2_core_core_c_h

  1866.     openjpeg_2_1_openjpeg_h

  1867.     openjpeg_2_0_openjpeg_h

  1868.     openjpeg_1_5_openjpeg_h

  1869.     OpenGL_gl3_h

  1870.     poll_h

  1871.     sndio_h

  1872.     soundcard_h

  1873.     stdatomic_h

  1874.     sys_mman_h

  1875.     sys_param_h

  1876.     sys_resource_h

  1877.     sys_select_h

  1878.     sys_soundcard_h

  1879.     sys_time_h

  1880.     sys_un_h

  1881.     sys_videoio_h

  1882.     termios_h

  1883.     udplite_h

  1884.     unistd_h

  1885.     valgrind_valgrind_h

  1886.     windows_h

  1887.     winsock2_h

  1888. "

  1889. 

  1890. INTRINSICS_LIST="

  1891.     intrinsics_neon

  1892. "

  1893. 

  1894. COMPLEX_FUNCS="

  1895.     cabs

  1896.     cexp

  1897. "

  1898. 

  1899. MATH_FUNCS="

  1900.     atanf

  1901.     atan2f

  1902.     cbrt

  1903.     cbrtf

  1904.     copysign

  1905.     cosf

  1906.     erf

  1907.     exp2

  1908.     exp2f

  1909.     expf

  1910.     hypot

  1911.     isfinite

  1912.     isinf

  1913.     isnan

  1914.     ldexpf

  1915.     llrint

  1916.     llrintf

  1917.     log2

  1918.     log2f

  1919.     log10f

  1920.     lrint

  1921.     lrintf

  1922.     powf

  1923.     rint

  1924.     round

  1925.     roundf

  1926.     sinf

  1927.     trunc

  1928.     truncf

  1929. "

  1930. 

  1931. SYSTEM_FUNCS="

  1932.     access

  1933.     aligned_malloc

  1934.     arc4random

  1935.     clock_gettime

  1936.     closesocket

  1937.     CommandLineToArgvW

  1938.     CoTaskMemFree

  1939.     CryptGenRandom

  1940.     dlopen

  1941.     fcntl

  1942.     flt_lim

  1943.     fork

  1944.     getaddrinfo

  1945.     gethrtime

  1946.     getopt

  1947.     GetProcessAffinityMask

  1948.     GetProcessMemoryInfo

  1949.     GetProcessTimes

  1950.     getrusage

  1951.     GetSystemTimeAsFileTime

  1952.     gettimeofday

  1953.     glob

  1954.     glXGetProcAddress

  1955.     gmtime_r

  1956.     inet_aton

  1957.     isatty

  1958.     jack_port_get_latency_range

  1959.     kbhit

  1960.     LoadLibrary

  1961.     localtime_r

  1962.     lstat

  1963.     lzo1x_999_compress

  1964.     mach_absolute_time

  1965.     MapViewOfFile

  1966.     memalign

  1967.     mkstemp

  1968.     mmap

  1969.     mprotect

  1970.     nanosleep

  1971.     PeekNamedPipe

  1972.     posix_memalign

  1973.     pthread_cancel

  1974.     sched_getaffinity

  1975.     SetConsoleTextAttribute

  1976.     SetConsoleCtrlHandler

  1977.     setmode

  1978.     setrlimit

  1979.     Sleep

  1980.     strerror_r

  1981.     sysconf

  1982.     sysctl

  1983.     usleep

  1984.     UTGetOSTypeFromString

  1985.     VirtualAlloc

  1986.     wglGetProcAddress

  1987. "

  1988. 

  1989. TOOLCHAIN_FEATURES="

  1990.     as_dn_directive

  1991.     as_fpu_directive

  1992.     as_func

  1993.     as_object_arch

  1994.     asm_mod_q

  1995.     attribute_may_alias

  1996.     attribute_packed

  1997.     ebp_available

  1998.     ebx_available

  1999.     gnu_as

  2000.     gnu_windres

  2001.     ibm_asm

  2002.     inline_asm_direct_symbol_refs

  2003.     inline_asm_labels

  2004.     inline_asm_nonlocal_labels

  2005.     pragma_deprecated

  2006.     rsync_contimeout

  2007.     symver_asm_label

  2008.     symver_gnu_asm

  2009.     vfp_args

  2010.     xform_asm

  2011.     xmm_clobbers

  2012. "

  2013. 

  2014. TYPES_LIST="

  2015.     CONDITION_VARIABLE_Ptr

  2016.     socklen_t

  2017.     struct_addrinfo

  2018.     struct_group_source_req

  2019.     struct_ip_mreq_source

  2020.     struct_ipv6_mreq

  2021.     struct_msghdr_msg_flags

  2022.     struct_pollfd

  2023.     struct_rusage_ru_maxrss

  2024.     struct_sctp_event_subscribe

  2025.     struct_sockaddr_in6

  2026.     struct_sockaddr_sa_len

  2027.     struct_sockaddr_storage

  2028.     struct_stat_st_mtim_tv_nsec

  2029.     struct_v4l2_frmivalenum_discrete

  2030. "

  2031. 

  2032. HAVE_LIST="

  2033.     $ARCH_EXT_LIST

  2034.     $(add_suffix _external $ARCH_EXT_LIST)

  2035.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2036.     $ARCH_FEATURES

  2037.     $ATOMICS_LIST

  2038.     $BUILTIN_LIST

  2039.     $COMPLEX_FUNCS

  2040.     $HAVE_LIST_CMDLINE

  2041.     $HAVE_LIST_PUB

  2042.     $HEADERS_LIST

  2043.     $INTRINSICS_LIST

  2044.     $MATH_FUNCS

  2045.     $SYSTEM_FUNCS

  2046.     $THREADS_LIST

  2047.     $TOOLCHAIN_FEATURES

  2048.     $TYPES_LIST

  2049.     alsa

  2050.     atomics_native

  2051.     dos_paths

  2052.     dxva2_lib

  2053.     dxva2api_cobj

  2054.     jack

  2055.     libc_msvcrt

  2056.     makeinfo

  2057.     makeinfo_html

  2058.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2059.     perl

  2060.     pod2man

  2061.     sdl2

  2062.     section_data_rel_ro

  2063.     sndio

  2064.     texi2html

  2065.     threads

  2066.     vaapi_drm

  2067.     vaapi_x11

  2068.     vdpau_x11

  2069.     winrt

  2070. "

  2071. 

  2072. # options emitted with CONFIG_ prefix but not available on the command line

  2073. CONFIG_EXTRA="

  2074.     aandcttables

  2075.     ac3dsp

  2076.     audio_frame_queue

  2077.     audiodsp

  2078.     blockdsp

  2079.     bswapdsp

  2080.     cabac

  2081.     dirac_parse

  2082.     dvprofile

  2083.     exif

  2084.     faandct

  2085.     faanidct

  2086.     fdctdsp

  2087.     flacdsp

  2088.     fmtconvert

  2089.     frame_thread_encoder

  2090.     g722dsp

  2091.     golomb

  2092.     gplv3

  2093.     h263dsp

  2094.     h264chroma

  2095.     h264dsp

  2096.     h264parse

  2097.     h264pred

  2098.     h264qpel

  2099.     hevcparse

  2100.     hpeldsp

  2101.     huffman

  2102.     huffyuvdsp

  2103.     huffyuvencdsp

  2104.     idctdsp

  2105.     iirfilter

  2106.     mdct15

  2107.     intrax8

  2108.     iso_media

  2109.     ividsp

  2110.     jpegtables

  2111.     lgplv3

  2112.     libx262

  2113.     llauddsp

  2114.     llviddsp

  2115.     llvidencdsp

  2116.     lpc

  2117.     lzf

  2118.     me_cmp

  2119.     mpeg_er

  2120.     mpegaudio

  2121.     mpegaudiodsp

  2122.     mpegaudioheader

  2123.     mpegvideo

  2124.     mpegvideoenc

  2125.     mss34dsp

  2126.     pixblockdsp

  2127.     qpeldsp

  2128.     qsv

  2129.     qsvdec

  2130.     qsvenc

  2131.     rangecoder

  2132.     riffdec

  2133.     riffenc

  2134.     rtpdec

  2135.     rtpenc_chain

  2136.     rv34dsp

  2137.     sinewin

  2138.     snappy

  2139.     srtp

  2140.     startcode

  2141.     texturedsp

  2142.     texturedspenc

  2143.     tpeldsp

  2144.     vaapi_encode

  2145.     vc1dsp

  2146.     videodsp

  2147.     vp3dsp

  2148.     vp56dsp

  2149.     vp8dsp

  2150.     vt_bt2020

  2151.     wma_freqs

  2152.     wmv2dsp

  2153. "

  2154. 

  2155. CMDLINE_SELECT="

  2156.     $ARCH_EXT_LIST

  2157.     $CONFIG_LIST

  2158.     $HAVE_LIST_CMDLINE

  2159.     $THREADS_LIST

  2160.     asm

  2161.     cross_compile

  2162.     debug

  2163.     extra_warnings

  2164.     logging

  2165.     lto

  2166.     optimizations

  2167.     rpath

  2168.     stripping

  2169. "

  2170. 

  2171. PATHS_LIST="

  2172.     bindir

  2173.     datadir

  2174.     docdir

  2175.     incdir

  2176.     libdir

  2177.     mandir

  2178.     pkgconfigdir

  2179.     prefix

  2180.     shlibdir

  2181.     install_name_dir

  2182. "

  2183. 

  2184. CMDLINE_SET="

  2185.     $PATHS_LIST

  2186.     ar

  2187.     arch

  2188.     as

  2189.     assert_level

  2190.     build_suffix

  2191.     cc

  2192.     objcc

  2193.     cpu

  2194.     cross_prefix

  2195.     custom_allocator

  2196.     cxx

  2197.     dep_cc

  2198.     doxygen

  2199.     env

  2200.     extra_version

  2201.     gas

  2202.     host_cc

  2203.     host_cflags

  2204.     host_extralibs

  2205.     host_ld

  2206.     host_ldflags

  2207.     host_os

  2208.     install

  2209.     ld

  2210.     ln_s

  2211.     logfile

  2212.     malloc_prefix

  2213.     nm

  2214.     optflags

  2215.     pkg_config

  2216.     pkg_config_flags

  2217.     progs_suffix

  2218.     random_seed

  2219.     ranlib

  2220.     samples

  2221.     strip

  2222.     sws_max_filter_size

  2223.     sysinclude

  2224.     sysroot

  2225.     target_exec

  2226.     target_os

  2227.     target_path

  2228.     target_samples

  2229.     tempprefix

  2230.     toolchain

  2231.     valgrind

  2232.     yasmexe

  2233. "

  2234. 

  2235. CMDLINE_APPEND="

  2236.     extra_cflags

  2237.     extra_cxxflags

  2238.     extra_objcflags

  2239.     host_cppflags

  2240. "

  2241. 

  2242. # code dependency declarations

  2243. 

  2244. # architecture extensions

  2245. 

  2246. armv5te_deps="arm"

  2247. armv6_deps="arm"

  2248. armv6t2_deps="arm"

  2249. armv8_deps="aarch64"

  2250. neon_deps_any="aarch64 arm"

  2251. intrinsics_neon_deps="neon"

  2252. vfp_deps_any="aarch64 arm"

  2253. vfpv3_deps="vfp"

  2254. setend_deps="arm"

  2255. 

  2256. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2257. 

  2258. loongson2_deps="mips"

  2259. loongson3_deps="mips"

  2260. mipsfpu_deps="mips"

  2261. mipsdsp_deps="mips"

  2262. mipsdspr2_deps="mips"

  2263. mips32r2_deps="mips"

  2264. mips32r5_deps="mips"

  2265. mips32r6_deps="mips"

  2266. mips64r2_deps="mips"

  2267. mips64r6_deps="mips"

  2268. msa_deps="mipsfpu"

  2269. mmi_deps="mips"

  2270. 

  2271. altivec_deps="ppc"

  2272. dcbzl_deps="ppc"

  2273. ldbrx_deps="ppc"

  2274. ppc4xx_deps="ppc"

  2275. vsx_deps="altivec"

  2276. power8_deps="vsx"

  2277. 

  2278. cpunop_deps="i686"

  2279. x86_64_select="i686"

  2280. x86_64_suggest="fast_cmov"

  2281. 

  2282. amd3dnow_deps="mmx"

  2283. amd3dnowext_deps="amd3dnow"

  2284. i686_deps="x86"

  2285. mmx_deps="x86"

  2286. mmxext_deps="mmx"

  2287. sse_deps="mmxext"

  2288. sse2_deps="sse"

  2289. sse3_deps="sse2"

  2290. ssse3_deps="sse3"

  2291. sse4_deps="ssse3"

  2292. sse42_deps="sse4"

  2293. aesni_deps="sse42"

  2294. avx_deps="sse42"

  2295. xop_deps="avx"

  2296. fma3_deps="avx"

  2297. fma4_deps="avx"

  2298. avx2_deps="avx"

  2299. 

  2300. mmx_external_deps="yasm"

  2301. mmx_inline_deps="inline_asm"

  2302. mmx_suggest="mmx_external mmx_inline"

  2303. 

  2304. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2305.     eval dep=\$${ext}_deps

  2306.     eval ${ext}_external_deps='"${dep}_external"'

  2307.     eval ${ext}_inline_deps='"${dep}_inline"'

  2308.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2309. done

  2310. 

  2311. aligned_stack_if_any="aarch64 ppc x86"

  2312. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2313. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2314. fast_unaligned_if_any="aarch64 ppc x86"

  2315. simd_align_16_if_any="altivec neon sse"

  2316. simd_align_32_if_any="avx"

  2317. 

  2318. # system capabilities

  2319. symver_if_any="symver_asm_label symver_gnu_asm"

  2320. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2321. 

  2322. # threading support

  2323. atomics_gcc_if="sync_val_compare_and_swap"

  2324. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2325. atomics_win32_if="MemoryBarrier"

  2326. atomics_native_if_any="$ATOMICS_LIST"

  2327. w32threads_deps="atomics_native"

  2328. threads_if_any="$THREADS_LIST"

  2329. 

  2330. # subsystems

  2331. dct_select="rdft"

  2332. dirac_parse_select="golomb"

  2333. error_resilience_select="me_cmp"

  2334. faandct_deps="faan fdctdsp"

  2335. faanidct_deps="faan idctdsp"

  2336. h264dsp_select="startcode"

  2337. hevcparse_select="golomb"

  2338. frame_thread_encoder_deps="encoders threads"

  2339. intrax8_select="blockdsp idctdsp"

  2340. mdct_select="fft"

  2341. mdct15_select="fft"

  2342. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2343. mpeg_er_select="error_resilience"

  2344. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2345. mpegaudiodsp_select="dct"

  2346. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2347. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2348. vc1dsp_select="h264chroma qpeldsp startcode"

  2349. rdft_select="fft"

  2350. 

  2351. # decoders / encoders

  2352. aac_decoder_select="mdct15 mdct sinewin"

  2353. aac_fixed_decoder_select="mdct sinewin"

  2354. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2355. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2356. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2357. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2358. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2359. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2360. adpcm_g722_decoder_select="g722dsp"

  2361. adpcm_g722_encoder_select="g722dsp"

  2362. aic_decoder_select="golomb idctdsp"

  2363. alac_encoder_select="lpc"

  2364. als_decoder_select="bswapdsp"

  2365. amrnb_decoder_select="lsp"

  2366. amrwb_decoder_select="lsp"

  2367. amv_decoder_select="sp5x_decoder exif"

  2368. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2369. ape_decoder_select="bswapdsp llauddsp"

  2370. apng_decoder_select="zlib"

  2371. apng_encoder_select="llvidencdsp zlib"

  2372. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2373. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2374. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2375. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2376. atrac1_decoder_select="mdct sinewin"

  2377. atrac3_decoder_select="mdct"

  2378. atrac3p_decoder_select="mdct sinewin"

  2379. avrn_decoder_select="exif jpegtables"

  2380. bink_decoder_select="blockdsp hpeldsp"

  2381. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2382. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2383. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2384. cllc_decoder_select="bswapdsp"

  2385. comfortnoise_encoder_select="lpc"

  2386. cook_decoder_select="audiodsp mdct sinewin"

  2387. cscd_decoder_select="lzo"

  2388. cscd_decoder_suggest="zlib"

  2389. dca_decoder_select="mdct"

  2390. dds_decoder_select="texturedsp"

  2391. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2392. dnxhd_decoder_select="blockdsp idctdsp"

  2393. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2394. dvvideo_decoder_select="dvprofile idctdsp"

  2395. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2396. dxa_decoder_select="zlib"

  2397. dxv_decoder_select="lzf texturedsp"

  2398. eac3_decoder_select="ac3_decoder"

  2399. eac3_encoder_select="ac3_encoder"

  2400. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2401. eatgq_decoder_select="aandcttables"

  2402. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2403. exr_decoder_select="zlib"

  2404. ffv1_decoder_select="rangecoder"

  2405. ffv1_encoder_select="rangecoder"

  2406. ffvhuff_decoder_select="huffyuv_decoder"

  2407. ffvhuff_encoder_select="huffyuv_encoder"

  2408. fic_decoder_select="golomb"

  2409. flac_decoder_select="flacdsp"

  2410. flac_encoder_select="bswapdsp flacdsp lpc"

  2411. flashsv2_decoder_select="zlib"

  2412. flashsv2_encoder_select="zlib"

  2413. flashsv_decoder_select="zlib"

  2414. flashsv_encoder_select="zlib"

  2415. flv_decoder_select="h263_decoder"

  2416. flv_encoder_select="h263_encoder"

  2417. fourxm_decoder_select="blockdsp bswapdsp"

  2418. fraps_decoder_select="bswapdsp huffman"

  2419. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2420. g729_decoder_select="audiodsp"

  2421. h261_decoder_select="mpegvideo"

  2422. h261_encoder_select="aandcttables mpegvideoenc"

  2423. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2424. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2425. h263i_decoder_select="h263_decoder"

  2426. h263p_decoder_select="h263_decoder"

  2427. h263p_encoder_select="h263_encoder"

  2428. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2429. h264_decoder_suggest="error_resilience"

  2430. hap_decoder_select="snappy texturedsp"

  2431. hap_encoder_deps="libsnappy"

  2432. hap_encoder_select="texturedspenc"

  2433. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2434. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2435. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2436. iac_decoder_select="imc_decoder"

  2437. imc_decoder_select="bswapdsp fft mdct sinewin"

  2438. indeo3_decoder_select="hpeldsp"

  2439. indeo4_decoder_select="ividsp"

  2440. indeo5_decoder_select="ividsp"

  2441. interplay_video_decoder_select="hpeldsp"

  2442. jpegls_decoder_select="mjpeg_decoder"

  2443. jv_decoder_select="blockdsp"

  2444. lagarith_decoder_select="llviddsp"

  2445. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2446. magicyuv_decoder_select="llviddsp"

  2447. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2448. metasound_decoder_select="lsp mdct sinewin"

  2449. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2450. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2451. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2452. mjpegb_decoder_select="mjpeg_decoder"

  2453. mlp_decoder_select="mlp_parser"

  2454. motionpixels_decoder_select="bswapdsp"

  2455. mp1_decoder_select="mpegaudio"

  2456. mp1float_decoder_select="mpegaudio"

  2457. mp2_decoder_select="mpegaudio"

  2458. mp2float_decoder_select="mpegaudio"

  2459. mp3_decoder_select="mpegaudio"

  2460. mp3adu_decoder_select="mpegaudio"

  2461. mp3adufloat_decoder_select="mpegaudio"

  2462. mp3float_decoder_select="mpegaudio"

  2463. mp3on4_decoder_select="mpegaudio"

  2464. mp3on4float_decoder_select="mpegaudio"

  2465. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2466. mpc8_decoder_select="mpegaudiodsp"

  2467. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2468. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2469. mpegvideo_decoder_select="mpegvideo"

  2470. mpeg1video_decoder_select="mpegvideo"

  2471. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2472. mpeg2video_decoder_select="mpegvideo"

  2473. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2474. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2475. mpeg4_encoder_select="h263_encoder"

  2476. msa1_decoder_select="mss34dsp"

  2477. mscc_decoder_select="zlib"

  2478. msmpeg4v1_decoder_select="h263_decoder"

  2479. msmpeg4v2_decoder_select="h263_decoder"

  2480. msmpeg4v2_encoder_select="h263_encoder"

  2481. msmpeg4v3_decoder_select="h263_decoder"

  2482. msmpeg4v3_encoder_select="h263_encoder"

  2483. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2484. mts2_decoder_select="mss34dsp"

  2485. mxpeg_decoder_select="mjpeg_decoder"

  2486. nellymoser_decoder_select="mdct sinewin"

  2487. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2488. nuv_decoder_select="idctdsp lzo"

  2489. on2avc_decoder_select="mdct"

  2490. opus_decoder_deps="swresample"

  2491. opus_decoder_select="mdct15"

  2492. opus_encoder_select="audio_frame_queue mdct15"

  2493. png_decoder_select="zlib"

  2494. png_encoder_select="llvidencdsp zlib"

  2495. prores_decoder_select="blockdsp idctdsp"

  2496. prores_encoder_select="fdctdsp"

  2497. qcelp_decoder_select="lsp"

  2498. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2499. ra_144_decoder_select="audiodsp"

  2500. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2501. ralf_decoder_select="golomb"

  2502. rawvideo_decoder_select="bswapdsp"

  2503. rscc_decoder_select="zlib"

  2504. rtjpeg_decoder_select="me_cmp"

  2505. rv10_decoder_select="h263_decoder"

  2506. rv10_encoder_select="h263_encoder"

  2507. rv20_decoder_select="h263_decoder"

  2508. rv20_encoder_select="h263_encoder"

  2509. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2510. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2511. screenpresso_decoder_select="zlib"

  2512. shorten_decoder_select="bswapdsp"

  2513. sipr_decoder_select="lsp"

  2514. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2515. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2516. sonic_decoder_select="golomb rangecoder"

  2517. sonic_encoder_select="golomb rangecoder"

  2518. sonic_ls_encoder_select="golomb rangecoder"

  2519. sp5x_decoder_select="mjpeg_decoder"

  2520. srgc_decoder_select="zlib"

  2521. svq1_decoder_select="hpeldsp"

  2522. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2523. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2524. svq3_decoder_suggest="zlib"

  2525. tak_decoder_select="audiodsp"

  2526. tdsc_decoder_select="zlib mjpeg_decoder"

  2527. theora_decoder_select="vp3_decoder"

  2528. thp_decoder_select="mjpeg_decoder"

  2529. tiff_decoder_suggest="zlib lzma"

  2530. tiff_encoder_suggest="zlib"

  2531. truehd_decoder_select="mlp_parser"

  2532. truemotion2_decoder_select="bswapdsp"

  2533. truespeech_decoder_select="bswapdsp"

  2534. tscc_decoder_select="zlib"

  2535. twinvq_decoder_select="mdct lsp sinewin"

  2536. txd_decoder_select="texturedsp"

  2537. utvideo_decoder_select="bswapdsp llviddsp"

  2538. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2539. vble_decoder_select="llviddsp"

  2540. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2541. vc1_qsv_decoder_deps="libmfx"

  2542. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2543. vc1image_decoder_select="vc1_decoder"

  2544. vorbis_decoder_select="mdct"

  2545. vorbis_encoder_select="mdct"

  2546. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2547. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2548. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2549. vp6a_decoder_select="vp6_decoder"

  2550. vp6f_decoder_select="vp6_decoder"

  2551. vp7_decoder_select="h264pred videodsp vp8dsp"

  2552. vp8_decoder_select="h264pred videodsp vp8dsp"

  2553. vp9_decoder_select="videodsp vp9_parser"

  2554. webp_decoder_select="vp8_decoder exif"

  2555. wmalossless_decoder_select="llauddsp"

  2556. wmapro_decoder_select="mdct sinewin wma_freqs"

  2557. wmav1_decoder_select="mdct sinewin wma_freqs"

  2558. wmav1_encoder_select="mdct sinewin wma_freqs"

  2559. wmav2_decoder_select="mdct sinewin wma_freqs"

  2560. wmav2_encoder_select="mdct sinewin wma_freqs"

  2561. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2562. wmv1_decoder_select="h263_decoder"

  2563. wmv1_encoder_select="h263_encoder"

  2564. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2565. wmv2_encoder_select="h263_encoder wmv2dsp"

  2566. wmv3_decoder_select="vc1_decoder"

  2567. wmv3image_decoder_select="wmv3_decoder"

  2568. xma1_decoder_select="wmapro_decoder"

  2569. xma2_decoder_select="wmapro_decoder"

  2570. zerocodec_decoder_select="zlib"

  2571. zlib_decoder_select="zlib"

  2572. zlib_encoder_select="zlib"

  2573. zmbv_decoder_select="zlib"

  2574. zmbv_encoder_select="zlib"

  2575. 

  2576. # platform codecs

  2577. audiotoolbox_deps="AudioToolbox_AudioToolbox_h"

  2578. audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"

  2579. 

  2580. # hardware accelerators

  2581. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2582. cuda_deps_any="dlopen LoadLibrary"

  2583. cuvid_deps="cuda"

  2584. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2585. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2586. dxva2_extralibs="-luser32"

  2587. dxva2_lib_deps="dxva2"

  2588. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"

  2589. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2590. vda_deps="vda_framework pthreads"

  2591. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2592. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2593. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2594. xvmc_deps="X11_extensions_XvMClib_h"

  2595. 

  2596. h263_vaapi_hwaccel_deps="vaapi"

  2597. h263_vaapi_hwaccel_select="h263_decoder"

  2598. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2599. h263_videotoolbox_hwaccel_select="h263_decoder"

  2600. h264_cuvid_hwaccel_deps="cuda cuvid"

  2601. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2602. h264_d3d11va_hwaccel_deps="d3d11va"

  2603. h264_d3d11va_hwaccel_select="h264_decoder"

  2604. h264_dxva2_hwaccel_deps="dxva2"

  2605. h264_dxva2_hwaccel_select="h264_decoder"

  2606. h264_mediacodec_hwaccel_deps="mediacodec"

  2607. h264_mmal_hwaccel_deps="mmal"

  2608. h264_qsv_hwaccel_deps="libmfx"

  2609. h264_vaapi_hwaccel_deps="vaapi"

  2610. h264_vaapi_hwaccel_select="h264_decoder"

  2611. h264_vda_hwaccel_deps="vda"

  2612. h264_vda_hwaccel_select="h264_decoder"

  2613. h264_vda_old_hwaccel_deps="vda"

  2614. h264_vda_old_hwaccel_select="h264_decoder"

  2615. h264_vdpau_hwaccel_deps="vdpau"

  2616. h264_vdpau_hwaccel_select="h264_decoder"

  2617. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2618. h264_videotoolbox_hwaccel_select="h264_decoder"

  2619. hevc_cuvid_hwaccel_deps="cuda cuvid"

  2620. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2621. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2622. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2623. hevc_mediacodec_hwaccel_deps="mediacodec"

  2624. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2625. hevc_dxva2_hwaccel_select="hevc_decoder"

  2626. hevc_qsv_hwaccel_deps="libmfx"

  2627. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2628. hevc_vaapi_hwaccel_select="hevc_decoder"

  2629. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2630. hevc_vdpau_hwaccel_select="hevc_decoder"

  2631. mjpeg_cuvid_hwaccel_deps="cuda cuvid"

  2632. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2633. mpeg_xvmc_hwaccel_deps="xvmc"

  2634. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2635. mpeg1_cuvid_hwaccel_deps="cuda cuvid"

  2636. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2637. mpeg1_vdpau_hwaccel_deps="vdpau"

  2638. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2639. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2640. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2641. mpeg1_xvmc_hwaccel_deps="xvmc"

  2642. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2643. mpeg2_cuvid_hwaccel_deps="cuda cuvid"

  2644. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2645. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2646. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2647. mpeg2_dxva2_hwaccel_deps="dxva2"

  2648. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2649. mpeg2_mmal_hwaccel_deps="mmal"

  2650. mpeg2_qsv_hwaccel_deps="libmfx"

  2651. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2652. mpeg2_vaapi_hwaccel_deps="vaapi"

  2653. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2654. mpeg2_vdpau_hwaccel_deps="vdpau"

  2655. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2656. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2657. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2658. mpeg2_xvmc_hwaccel_deps="xvmc"

  2659. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2660. mpeg4_cuvid_hwaccel_deps="cuda cuvid"

  2661. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2662. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2663. mpeg4_mmal_hwaccel_deps="mmal"

  2664. mpeg4_vaapi_hwaccel_deps="vaapi"

  2665. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2666. mpeg4_vdpau_hwaccel_deps="vdpau"

  2667. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2668. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2669. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2670. vc1_cuvid_hwaccel_deps="cuda cuvid"

  2671. vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2672. vc1_d3d11va_hwaccel_deps="d3d11va"

  2673. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2674. vc1_dxva2_hwaccel_deps="dxva2"

  2675. vc1_dxva2_hwaccel_select="vc1_decoder"

  2676. vc1_mmal_hwaccel_deps="mmal"

  2677. vc1_qsv_hwaccel_deps="libmfx"

  2678. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2679. vc1_vaapi_hwaccel_deps="vaapi"

  2680. vc1_vaapi_hwaccel_select="vc1_decoder"

  2681. vc1_vdpau_hwaccel_deps="vdpau"

  2682. vc1_vdpau_hwaccel_select="vc1_decoder"

  2683. vp8_cuvid_hwaccel_deps="cuda cuvid"

  2684. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2685. vp9_cuvid_hwaccel_deps="cuda cuvid"

  2686. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2687. vp8_mediacodec_hwaccel_deps="mediacodec"

  2688. vp8_qsv_hwaccel_deps="libmfx"

  2689. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2690. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2691. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2692. vp9_dxva2_hwaccel_select="vp9_decoder"

  2693. vp9_mediacodec_hwaccel_deps="mediacodec"

  2694. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2695. vp9_vaapi_hwaccel_select="vp9_decoder"

  2696. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2697. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2698. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2699. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2700. 

  2701. # hardware-accelerated codecs

  2702. omx_deps="dlopen pthreads"

  2703. omx_extralibs='$ldl'

  2704. omx_rpi_select="omx"

  2705. qsvdec_select="qsv"

  2706. qsvenc_select="qsv"

  2707. vaapi_encode_deps="vaapi"

  2708. 

  2709. hwupload_cuda_filter_deps="cuda"

  2710. scale_npp_filter_deps="cuda libnpp"

  2711. 

  2712. nvenc_deps="cuda"

  2713. nvenc_deps_any="dlopen LoadLibrary"

  2714. nvenc_encoder_deps="nvenc"

  2715. 

  2716. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2717. h264_cuvid_decoder_deps="cuda cuvid"

  2718. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2719. h264_mediacodec_decoder_deps="mediacodec"

  2720. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2721. h264_mmal_decoder_deps="mmal"

  2722. h264_nvenc_encoder_deps="nvenc"

  2723. h264_omx_encoder_deps="omx"

  2724. h264_qsv_decoder_deps="libmfx"

  2725. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2726. h264_qsv_encoder_deps="libmfx"

  2727. h264_qsv_encoder_select="qsvenc"

  2728. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2729. h264_vaapi_encoder_select="vaapi_encode golomb"

  2730. h264_vda_decoder_deps="vda"

  2731. h264_vda_decoder_select="h264_decoder"

  2732. h264_vdpau_decoder_deps="vdpau"

  2733. h264_vdpau_decoder_select="h264_decoder"

  2734. hevc_cuvid_decoder_deps="cuda cuvid"

  2735. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2736. hevc_mediacodec_decoder_deps="mediacodec"

  2737. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2738. hevc_nvenc_encoder_deps="nvenc"

  2739. hevc_qsv_decoder_deps="libmfx"

  2740. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2741. hevc_qsv_encoder_deps="libmfx"

  2742. hevc_qsv_encoder_select="hevcparse qsvenc"

  2743. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2744. hevc_vaapi_encoder_select="vaapi_encode golomb"

  2745. mjpeg_cuvid_decoder_deps="cuda cuvid"

  2746. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2747. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2748. mpeg1_cuvid_decoder_deps="cuda cuvid"

  2749. mpeg1_vdpau_decoder_deps="vdpau"

  2750. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2751. mpeg2_crystalhd_decoder_select="crystalhd"

  2752. mpeg2_cuvid_decoder_deps="cuda cuvid"

  2753. mpeg2_mmal_decoder_deps="mmal"

  2754. mpeg2_qsv_decoder_deps="libmfx"

  2755. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2756. mpeg2_qsv_encoder_deps="libmfx"

  2757. mpeg2_qsv_encoder_select="qsvenc"

  2758. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2759. mpeg2_vaapi_encoder_select="vaapi_encode"

  2760. mpeg4_crystalhd_decoder_select="crystalhd"

  2761. mpeg4_cuvid_decoder_deps="cuda cuvid"

  2762. mpeg4_mediacodec_decoder_deps="mediacodec"

  2763. mpeg4_mmal_decoder_deps="mmal"

  2764. mpeg4_omx_encoder_deps="omx"

  2765. mpeg4_vdpau_decoder_deps="vdpau"

  2766. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2767. mpeg_vdpau_decoder_deps="vdpau"

  2768. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2769. msmpeg4_crystalhd_decoder_select="crystalhd"

  2770. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2771. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2772. vc1_crystalhd_decoder_select="crystalhd"

  2773. vc1_cuvid_decoder_deps="cuda cuvid"

  2774. vc1_mmal_decoder_deps="mmal"

  2775. vc1_vdpau_decoder_deps="vdpau"

  2776. vc1_vdpau_decoder_select="vc1_decoder"

  2777. vp8_cuvid_decoder_deps="cuda cuvid"

  2778. vp8_mediacodec_decoder_deps="mediacodec"

  2779. vp8_qsv_decoder_deps="libmfx"

  2780. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2781. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2782. vp8_vaapi_encoder_select="vaapi_encode"

  2783. vp9_cuvid_decoder_deps="cuda cuvid"

  2784. vp9_mediacodec_decoder_deps="mediacodec"

  2785. wmv3_crystalhd_decoder_select="crystalhd"

  2786. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2787. 

  2788. # parsers

  2789. h264_parser_select="golomb h264dsp h264parse"

  2790. hevc_parser_select="hevcparse"

  2791. mpegaudio_parser_select="mpegaudioheader"

  2792. mpegvideo_parser_select="mpegvideo"

  2793. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2794. vc1_parser_select="vc1dsp"

  2795. 

  2796. # bitstream_filters

  2797. mjpeg2jpeg_bsf_select="jpegtables"

  2798. 

  2799. # external libraries

  2800. aac_at_decoder_deps="audiotoolbox"

  2801. ac3_at_decoder_deps="audiotoolbox"

  2802. ac3_at_decoder_select="ac3_parser"

  2803. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2804. alac_at_decoder_deps="audiotoolbox"

  2805. amr_nb_at_decoder_deps="audiotoolbox"

  2806. avisynth_deps_any="dlopen LoadLibrary"

  2807. avisynth_demuxer_deps="avisynth"

  2808. avisynth_demuxer_select="riffdec"

  2809. eac3_at_decoder_deps="audiotoolbox"

  2810. eac3_at_decoder_select="ac3_parser"

  2811. gsm_ms_at_decoder_deps="audiotoolbox"

  2812. ilbc_at_decoder_deps="audiotoolbox"

  2813. mp1_at_decoder_deps="audiotoolbox"

  2814. mp2_at_decoder_deps="audiotoolbox"

  2815. mp3_at_decoder_deps="audiotoolbox"

  2816. mp1_at_decoder_select="mpegaudioheader"

  2817. mp2_at_decoder_select="mpegaudioheader"

  2818. mp3_at_decoder_select="mpegaudioheader"

  2819. pcm_alaw_at_decoder_deps="audiotoolbox"

  2820. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2821. qdmc_at_decoder_deps="audiotoolbox"

  2822. qdm2_at_decoder_deps="audiotoolbox"

  2823. aac_at_encoder_deps="audiotoolbox"

  2824. aac_at_encoder_select="audio_frame_queue"

  2825. alac_at_encoder_deps="audiotoolbox"

  2826. alac_at_encoder_select="audio_frame_queue"

  2827. ilbc_at_encoder_deps="audiotoolbox"

  2828. ilbc_at_encoder_select="audio_frame_queue"

  2829. pcm_alaw_at_encoder_deps="audiotoolbox"

  2830. pcm_alaw_at_encoder_select="audio_frame_queue"

  2831. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2832. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2833. chromaprint_muxer_deps="chromaprint"

  2834. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2835. libcelt_decoder_deps="libcelt"

  2836. libfdk_aac_decoder_deps="libfdk_aac"

  2837. libfdk_aac_encoder_deps="libfdk_aac"

  2838. libfdk_aac_encoder_select="audio_frame_queue"

  2839. libgme_demuxer_deps="libgme"

  2840. libgsm_decoder_deps="libgsm"

  2841. libgsm_encoder_deps="libgsm"

  2842. libgsm_ms_decoder_deps="libgsm"

  2843. libgsm_ms_encoder_deps="libgsm"

  2844. libilbc_decoder_deps="libilbc"

  2845. libilbc_encoder_deps="libilbc"

  2846. libkvazaar_encoder_deps="libkvazaar"

  2847. libmodplug_demuxer_deps="libmodplug"

  2848. libmp3lame_encoder_deps="libmp3lame"

  2849. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2850. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2851. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2852. libopencore_amrnb_encoder_select="audio_frame_queue"

  2853. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2854. libopenh264_decoder_deps="libopenh264"

  2855. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2856. libopenh264_encoder_deps="libopenh264"

  2857. libopenjpeg_decoder_deps="libopenjpeg"

  2858. libopenjpeg_encoder_deps="libopenjpeg"

  2859. libopenmpt_demuxer_deps="libopenmpt"

  2860. libopus_decoder_deps="libopus"

  2861. libopus_encoder_deps="libopus"

  2862. libopus_encoder_select="audio_frame_queue"

  2863. libschroedinger_decoder_deps="libschroedinger"

  2864. libschroedinger_encoder_deps="libschroedinger"

  2865. libshine_encoder_deps="libshine"

  2866. libshine_encoder_select="audio_frame_queue"

  2867. libspeex_decoder_deps="libspeex"

  2868. libspeex_encoder_deps="libspeex"

  2869. libspeex_encoder_select="audio_frame_queue"

  2870. libtheora_encoder_deps="libtheora"

  2871. libtwolame_encoder_deps="libtwolame"

  2872. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2873. libvorbis_decoder_deps="libvorbis"

  2874. libvorbis_encoder_deps="libvorbis"

  2875. libvorbis_encoder_select="audio_frame_queue"

  2876. libvpx_vp8_decoder_deps="libvpx"

  2877. libvpx_vp8_encoder_deps="libvpx"

  2878. libvpx_vp9_decoder_deps="libvpx"

  2879. libvpx_vp9_encoder_deps="libvpx"

  2880. libwavpack_encoder_deps="libwavpack"

  2881. libwavpack_encoder_select="audio_frame_queue"

  2882. libwebp_encoder_deps="libwebp"

  2883. libwebp_anim_encoder_deps="libwebp"

  2884. libx262_encoder_deps="libx262"

  2885. libx264_encoder_deps="libx264"

  2886. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2887. libx264rgb_encoder_select="libx264_encoder"

  2888. libx265_encoder_deps="libx265"

  2889. libxavs_encoder_deps="libxavs"

  2890. libxvid_encoder_deps="libxvid"

  2891. libzvbi_teletext_decoder_deps="libzvbi"

  2892. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2893. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2894. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2895. videotoolbox_encoder_suggest="vda_framework vt_bt2020"

  2896. vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"

  2897. 

  2898. # demuxers / muxers

  2899. ac3_demuxer_select="ac3_parser"

  2900. aiff_muxer_select="iso_media"

  2901. asf_demuxer_select="riffdec"

  2902. asf_o_demuxer_select="riffdec"

  2903. asf_muxer_select="riffenc"

  2904. asf_stream_muxer_select="asf_muxer"

  2905. avi_demuxer_select="iso_media riffdec exif"

  2906. avi_muxer_select="riffenc"

  2907. caf_demuxer_select="iso_media riffdec"

  2908. caf_muxer_select="iso_media"

  2909. dash_muxer_select="mp4_muxer"

  2910. dirac_demuxer_select="dirac_parser"

  2911. dts_demuxer_select="dca_parser"

  2912. dtshd_demuxer_select="dca_parser"

  2913. dv_demuxer_select="dvprofile"

  2914. dv_muxer_select="dvprofile"

  2915. dxa_demuxer_select="riffdec"

  2916. eac3_demuxer_select="ac3_parser"

  2917. f4v_muxer_select="mov_muxer"

  2918. fifo_muxer_deps="threads"

  2919. flac_demuxer_select="flac_parser"

  2920. hds_muxer_select="flv_muxer"

  2921. hls_muxer_select="mpegts_muxer"

  2922. image2_alias_pix_demuxer_select="image2_demuxer"

  2923. image2_brender_pix_demuxer_select="image2_demuxer"

  2924. ipod_muxer_select="mov_muxer"

  2925. ismv_muxer_select="mov_muxer"

  2926. libnut_demuxer_deps="libnut"

  2927. libnut_muxer_deps="libnut"

  2928. matroska_audio_muxer_select="matroska_muxer"

  2929. matroska_demuxer_select="iso_media riffdec"

  2930. matroska_demuxer_suggest="bzlib lzo zlib"

  2931. matroska_muxer_select="iso_media riffenc"

  2932. mmf_muxer_select="riffenc"

  2933. mov_demuxer_select="iso_media riffdec"

  2934. mov_demuxer_suggest="zlib"

  2935. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2936. mp3_demuxer_select="mpegaudio_parser"

  2937. mp3_muxer_select="mpegaudioheader"

  2938. mp4_muxer_select="mov_muxer"

  2939. mpegts_demuxer_select="iso_media"

  2940. mpegts_muxer_select="adts_muxer latm_muxer"

  2941. mpegtsraw_demuxer_select="mpegts_demuxer"

  2942. mxf_d10_muxer_select="mxf_muxer"

  2943. mxf_opatom_muxer_select="mxf_muxer"

  2944. nut_muxer_select="riffenc"

  2945. nuv_demuxer_select="riffdec"

  2946. oga_muxer_select="ogg_muxer"

  2947. ogg_demuxer_select="dirac_parse"

  2948. ogv_muxer_select="ogg_muxer"

  2949. opus_muxer_select="ogg_muxer"

  2950. psp_muxer_select="mov_muxer"

  2951. rtp_demuxer_select="sdp_demuxer"

  2952. rtp_muxer_select="golomb"

  2953. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  2954. rtsp_demuxer_select="http_protocol rtpdec"

  2955. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2956. sap_demuxer_select="sdp_demuxer"

  2957. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2958. sdp_demuxer_select="rtpdec"

  2959. smoothstreaming_muxer_select="ismv_muxer"

  2960. spdif_muxer_select="aac_parser"

  2961. spx_muxer_select="ogg_muxer"

  2962. swf_demuxer_suggest="zlib"

  2963. tak_demuxer_select="tak_parser"

  2964. tg2_muxer_select="mov_muxer"

  2965. tgp_muxer_select="mov_muxer"

  2966. vobsub_demuxer_select="mpegps_demuxer"

  2967. w64_demuxer_select="wav_demuxer"

  2968. w64_muxer_select="wav_muxer"

  2969. wav_demuxer_select="riffdec"

  2970. wav_muxer_select="riffenc"

  2971. webm_muxer_select="iso_media riffenc"

  2972. webm_dash_manifest_demuxer_select="matroska_demuxer"

  2973. wtv_demuxer_select="mpegts_demuxer riffdec"

  2974. wtv_muxer_select="mpegts_muxer riffenc"

  2975. xmv_demuxer_select="riffdec"

  2976. xwma_demuxer_select="riffdec"

  2977. 

  2978. # indevs / outdevs

  2979. alsa_indev_deps="alsa"

  2980. alsa_outdev_deps="alsa"

  2981. avfoundation_indev_deps="pthreads"

  2982. avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"

  2983. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2984. caca_outdev_deps="libcaca"

  2985. decklink_indev_deps="decklink threads"

  2986. decklink_indev_extralibs="-lstdc++"

  2987. decklink_outdev_deps="decklink threads"

  2988. decklink_outdev_extralibs="-lstdc++"

  2989. dshow_indev_deps="IBaseFilter"

  2990. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2991. dv1394_indev_deps="dv1394"

  2992. dv1394_indev_select="dv_demuxer"

  2993. fbdev_indev_deps="linux_fb_h"

  2994. fbdev_outdev_deps="linux_fb_h"

  2995. gdigrab_indev_deps="CreateDIBSection"

  2996. gdigrab_indev_extralibs="-lgdi32"

  2997. gdigrab_indev_select="bmp_decoder"

  2998. iec61883_indev_deps="libiec61883"

  2999. jack_indev_deps="jack"

  3000. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3001. lavfi_indev_deps="avfilter"

  3002. libcdio_indev_deps="libcdio"

  3003. libdc1394_indev_deps="libdc1394"

  3004. libv4l2_indev_deps="libv4l2"

  3005. openal_indev_deps="openal"

  3006. opengl_outdev_deps="opengl"

  3007. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  3008. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  3009. pulse_indev_deps="libpulse"

  3010. pulse_outdev_deps="libpulse"

  3011. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  3012. qtkit_indev_select="qtkit"

  3013. sdl2_outdev_deps="sdl2"

  3014. sndio_indev_deps="sndio"

  3015. sndio_outdev_deps="sndio"

  3016. v4l_indev_deps="linux_videodev_h"

  3017. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3018. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3019. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  3020. xcbgrab_indev_deps="libxcb"

  3021. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3022. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3023. 

  3024. # protocols

  3025. async_protocol_deps="threads"

  3026. bluray_protocol_deps="libbluray"

  3027. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  3028. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3029. ffrtmpcrypt_protocol_select="tcp_protocol"

  3030. ffrtmphttp_protocol_deps="!librtmp_protocol"

  3031. ffrtmphttp_protocol_select="http_protocol"

  3032. ftp_protocol_select="tcp_protocol"

  3033. gopher_protocol_select="network"

  3034. http_protocol_select="tcp_protocol"

  3035. httpproxy_protocol_select="tcp_protocol"

  3036. https_protocol_select="tls_protocol"

  3037. icecast_protocol_select="http_protocol"

  3038. librtmp_protocol_deps="librtmp"

  3039. librtmpe_protocol_deps="librtmp"

  3040. librtmps_protocol_deps="librtmp"

  3041. librtmpt_protocol_deps="librtmp"

  3042. librtmpte_protocol_deps="librtmp"

  3043. libsmbclient_protocol_deps="libsmbclient gplv3"

  3044. libssh_protocol_deps="libssh"

  3045. mmsh_protocol_select="http_protocol"

  3046. mmst_protocol_select="network"

  3047. rtmp_protocol_deps="!librtmp_protocol"

  3048. rtmp_protocol_select="tcp_protocol"

  3049. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3050. rtmps_protocol_deps="!librtmp_protocol"

  3051. rtmps_protocol_select="tls_protocol"

  3052. rtmpt_protocol_select="ffrtmphttp_protocol"

  3053. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3054. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3055. rtp_protocol_select="udp_protocol"

  3056. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3057. sctp_protocol_select="network"

  3058. srtp_protocol_select="rtp_protocol srtp"

  3059. tcp_protocol_select="network"

  3060. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  3061. tls_gnutls_protocol_select="tcp_protocol"

  3062. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  3063. tls_openssl_protocol_select="tcp_protocol"

  3064. tls_schannel_protocol_deps="schannel"

  3065. tls_schannel_protocol_select="tcp_protocol"

  3066. tls_securetransport_protocol_deps="securetransport"

  3067. tls_securetransport_protocol_select="tcp_protocol"

  3068. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3069. udp_protocol_select="network"

  3070. udplite_protocol_select="network"

  3071. unix_protocol_deps="sys_un_h"

  3072. unix_protocol_select="network"

  3073. 

  3074. # filters

  3075. afftfilt_filter_deps="avcodec"

  3076. afftfilt_filter_select="fft"

  3077. amovie_filter_deps="avcodec avformat"

  3078. aresample_filter_deps="swresample"

  3079. ass_filter_deps="libass"

  3080. atempo_filter_deps="avcodec"

  3081. atempo_filter_select="rdft"

  3082. azmq_filter_deps="libzmq"

  3083. blackframe_filter_deps="gpl"

  3084. boxblur_filter_deps="gpl"

  3085. bs2b_filter_deps="libbs2b"

  3086. colormatrix_filter_deps="gpl"

  3087. cover_rect_filter_deps="avcodec avformat gpl"

  3088. cropdetect_filter_deps="gpl"

  3089. deinterlace_qsv_filter_deps="libmfx"

  3090. deinterlace_vaapi_filter_deps="vaapi"

  3091. delogo_filter_deps="gpl"

  3092. deshake_filter_select="pixelutils"

  3093. drawtext_filter_deps="libfreetype"

  3094. eq_filter_deps="gpl"

  3095. fftfilt_filter_deps="avcodec"

  3096. fftfilt_filter_select="rdft"

  3097. find_rect_filter_deps="avcodec avformat gpl"

  3098. firequalizer_filter_deps="avcodec"

  3099. firequalizer_filter_select="rdft"

  3100. flite_filter_deps="libflite"

  3101. framerate_filter_select="pixelutils"

  3102. frei0r_filter_deps="frei0r dlopen"

  3103. frei0r_src_filter_deps="frei0r dlopen"

  3104. fspp_filter_deps="gpl"

  3105. geq_filter_deps="gpl"

  3106. histeq_filter_deps="gpl"

  3107. hqdn3d_filter_deps="gpl"

  3108. interlace_filter_deps="gpl"

  3109. kerndeint_filter_deps="gpl"

  3110. ladspa_filter_deps="ladspa dlopen"

  3111. mcdeint_filter_deps="avcodec gpl"

  3112. movie_filter_deps="avcodec avformat"

  3113. mpdecimate_filter_deps="gpl"

  3114. mpdecimate_filter_select="pixelutils"

  3115. mptestsrc_filter_deps="gpl"

  3116. negate_filter_deps="lut_filter"

  3117. nnedi_filter_deps="gpl"

  3118. ocr_filter_deps="libtesseract"

  3119. ocv_filter_deps="libopencv"

  3120. owdenoise_filter_deps="gpl"

  3121. pan_filter_deps="swresample"

  3122. perspective_filter_deps="gpl"

  3123. phase_filter_deps="gpl"

  3124. pp7_filter_deps="gpl"

  3125. pp_filter_deps="gpl postproc"

  3126. pullup_filter_deps="gpl"

  3127. removelogo_filter_deps="avcodec avformat swscale"

  3128. repeatfields_filter_deps="gpl"

  3129. resample_filter_deps="avresample"

  3130. rubberband_filter_deps="librubberband"

  3131. sab_filter_deps="gpl swscale"

  3132. scale2ref_filter_deps="swscale"

  3133. scale_filter_deps="swscale"

  3134. scale_qsv_filter_deps="libmfx"

  3135. select_filter_select="pixelutils"

  3136. showcqt_filter_deps="avcodec avformat swscale"

  3137. showcqt_filter_select="fft"

  3138. showfreqs_filter_deps="avcodec"

  3139. showfreqs_filter_select="fft"

  3140. showspectrum_filter_deps="avcodec"

  3141. showspectrum_filter_select="fft"

  3142. showspectrumpic_filter_deps="avcodec"

  3143. showspectrumpic_filter_select="fft"

  3144. signature_filter_deps="gpl avcodec avformat"

  3145. smartblur_filter_deps="gpl swscale"

  3146. sofalizer_filter_deps="netcdf avcodec"

  3147. sofalizer_filter_select="fft"

  3148. spectrumsynth_filter_deps="avcodec"

  3149. spectrumsynth_filter_select="fft"

  3150. spp_filter_deps="gpl avcodec"

  3151. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3152. stereo3d_filter_deps="gpl"

  3153. subtitles_filter_deps="avformat avcodec libass"

  3154. super2xsai_filter_deps="gpl"

  3155. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3156. tinterlace_filter_deps="gpl"

  3157. tinterlace_merge_test_deps="tinterlace_filter"

  3158. tinterlace_pad_test_deps="tinterlace_filter"

  3159. uspp_filter_deps="gpl avcodec"

  3160. vaguedenoiser_filter_deps="gpl"

  3161. vidstabdetect_filter_deps="libvidstab"

  3162. vidstabtransform_filter_deps="libvidstab"

  3163. zmq_filter_deps="libzmq"

  3164. zoompan_filter_deps="swscale"

  3165. zscale_filter_deps="libzimg"

  3166. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3167. 

  3168. # examples

  3169. avio_dir_cmd_deps="avformat avutil"

  3170. avio_reading_deps="avformat avcodec avutil"

  3171. decode_audio_example_deps="avcodec avutil"

  3172. decode_video_example_deps="avcodec avutil"

  3173. demuxing_decoding_example_deps="avcodec avformat avutil"

  3174. encode_audio_example_deps="avcodec avutil"

  3175. encode_video_example_deps="avcodec avutil"

  3176. extract_mvs_example_deps="avcodec avformat avutil"

  3177. filter_audio_example_deps="avfilter avutil"

  3178. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3179. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3180. http_multiclient_example_deps="avformat avutil fork"

  3181. metadata_example_deps="avformat avutil"

  3182. muxing_example_deps="avcodec avformat avutil swscale"

  3183. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3184. remuxing_example_deps="avcodec avformat avutil"

  3185. resampling_audio_example_deps="avutil swresample"

  3186. scaling_video_example_deps="avutil swscale"

  3187. transcode_aac_example_deps="avcodec avformat swresample"

  3188. transcoding_example_deps="avfilter avcodec avformat avutil"

  3189. 

  3190. # libraries, in linking order

  3191. avcodec_deps="avutil"

  3192. avcodec_select="null_bsf"

  3193. avdevice_deps="avformat avcodec avutil"

  3194. avfilter_deps="avutil"

  3195. avformat_deps="avcodec avutil"

  3196. avresample_deps="avutil"

  3197. postproc_deps="avutil gpl"

  3198. swresample_deps="avutil"

  3199. swscale_deps="avutil"

  3200. 

  3201. # programs

  3202. ffmpeg_deps="avcodec avfilter avformat swresample"

  3203. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3204.                null_filter

  3205.                trim_filter"

  3206. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3207. ffplay_extralibs='$sdl2_extralibs'

  3208. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3209. ffprobe_deps="avcodec avformat"

  3210. ffserver_deps="avformat fork sarestart"

  3211. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3212. 

  3213. # documentation

  3214. podpages_deps="perl"

  3215. manpages_deps="perl pod2man"

  3216. htmlpages_deps="perl"

  3217. htmlpages_deps_any="makeinfo_html texi2html"

  3218. txtpages_deps="perl makeinfo"

  3219. doc_deps_any="manpages htmlpages podpages txtpages"

  3220. 

  3221. # default parameters

  3222. 

  3223. logfile="config.log"

  3224. 

  3225. # installation paths

  3226. prefix_default="/usr/local"

  3227. bindir_default='${prefix}/bin'

  3228. datadir_default='${prefix}/share/ffmpeg'

  3229. docdir_default='${prefix}/share/doc/ffmpeg'

  3230. incdir_default='${prefix}/include'

  3231. libdir_default='${prefix}/lib'

  3232. mandir_default='${prefix}/share/man'

  3233. 

  3234. # toolchain

  3235. ar_default="ar"

  3236. cc_default="gcc"

  3237. cxx_default="g++"

  3238. host_cc_default="gcc"

  3239. doxygen_default="doxygen"

  3240. install="install"

  3241. ln_s_default="ln -s -f"

  3242. nm_default="nm -g"

  3243. objformat="elf"

  3244. pkg_config_default=pkg-config

  3245. ranlib_default="ranlib"

  3246. strip_default="strip"

  3247. version_script='--version-script'

  3248. yasmexe_default="yasm"

  3249. windres_default="windres"

  3250. 

  3251. # OS

  3252. target_os_default=$(tolower $(uname -s))

  3253. host_os=$target_os_default

  3254. 

  3255. # machine

  3256. if test "$target_os_default" = aix; then

  3257.     arch_default=$(uname -p)

  3258.     strip_default="strip -X32_64"

  3259. else

  3260.     arch_default=$(uname -m)

  3261. fi

  3262. cpu="generic"

  3263. intrinsics="none"

  3264. 

  3265. # configurable options

  3266. enable $PROGRAM_LIST

  3267. enable $DOCUMENT_LIST

  3268. enable $EXAMPLE_LIST

  3269. enable $(filter_out avresample $LIBRARY_LIST)

  3270. enable stripping

  3271. 

  3272. enable asm

  3273. enable debug

  3274. enable doc

  3275. enable faan faandct faanidct

  3276. enable optimizations

  3277. enable runtime_cpudetect

  3278. enable safe_bitstream_reader

  3279. enable static

  3280. enable swscale_alpha

  3281. enable valgrind_backtrace

  3282. 

  3283. sws_max_filter_size_default=256

  3284. set_default sws_max_filter_size

  3285. 

  3286. # build settings

  3287. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3288. LIBPREF="lib"

  3289. LIBSUF=".a"

  3290. FULLNAME='$(NAME)$(BUILDSUF)'

  3291. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3292. SLIBPREF="lib"

  3293. SLIBSUF=".so"

  3294. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3295. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3296. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3297. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3298. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3299. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3300. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3301. 

  3302. asflags_filter=echo

  3303. cflags_filter=echo

  3304. ldflags_filter=echo

  3305. 

  3306. AS_C='-c'

  3307. AS_O='-o $@'

  3308. CC_C='-c'

  3309. CC_E='-E -o $@'

  3310. CC_O='-o $@'

  3311. CXX_C='-c'

  3312. CXX_O='-o $@'

  3313. OBJCC_C='-c'

  3314. OBJCC_E='-E -o $@'

  3315. OBJCC_O='-o $@'

  3316. LD_O='-o $@'

  3317. LD_LIB='-l%'

  3318. LD_PATH='-L'

  3319. HOSTCC_C='-c'

  3320. HOSTCC_E='-E -o $@'

  3321. HOSTCC_O='-o $@'

  3322. HOSTLD_O='-o $@'

  3323. 

  3324. host_extralibs='-lm'

  3325. host_cflags_filter=echo

  3326. host_ldflags_filter=echo

  3327. 

  3328. target_path='$(CURDIR)'

  3329. 

  3330. # since the object filename is not given with the -MM flag, the compiler

  3331. # is only able to print the basename, and we must add the path ourselves

  3332. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3333. DEPFLAGS='-MM'

  3334. 

  3335. # find source path

  3336. if test -f configure; then

  3337.     source_path=.

  3338. else

  3339.     source_path=$(cd $(dirname "$0"); pwd)

  3340.     case "$source_path" in

  3341.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3342.     esac

  3343.     test -e "$source_path/config.h" &&

  3344.         die "Out of tree builds are impossible with config.h in source dir."

  3345. fi

  3346. 

  3347. for v in "$@"; do

  3348.     r=${v#*=}

  3349.     l=${v%"$r"}

  3350.     r=$(sh_quote "$r")

  3351.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3352. done

  3353. 

  3354. find_things(){

  3355.     thing=$1

  3356.     pattern=$2

  3357.     file=$source_path/$3

  3358.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3359. }

  3360. 

  3361. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3362. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3363. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3364. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3365. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3366. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3367. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3368. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3369. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3370. 

  3371. find_things_extern(){

  3372.     thing=$1

  3373.     pattern=$2

  3374.     file=$source_path/$3

  3375.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3376. }

  3377. 

  3378. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3379. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3380. 

  3381. ALL_COMPONENTS="

  3382.     $BSF_LIST

  3383.     $DECODER_LIST

  3384.     $DEMUXER_LIST

  3385.     $ENCODER_LIST

  3386.     $FILTER_LIST

  3387.     $HWACCEL_LIST

  3388.     $INDEV_LIST

  3389.     $MUXER_LIST

  3390.     $OUTDEV_LIST

  3391.     $PARSER_LIST

  3392.     $PROTOCOL_LIST

  3393. "

  3394. 

  3395. for n in $COMPONENT_LIST; do

  3396.     v=$(toupper ${n%s})_LIST

  3397.     eval enable \$$v

  3398.     eval ${n}_if_any="\$$v"

  3399. done

  3400. 

  3401. enable $ARCH_EXT_LIST

  3402. 

  3403. die_unknown(){

  3404.     echo "Unknown option \"$1\"."

  3405.     echo "See $0 --help for available options."

  3406.     exit 1

  3407. }

  3408. 

  3409. print_in_columns() {

  3410.     cols=$(expr $ncols / 24)

  3411.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3412. }

  3413. 

  3414. show_list() {

  3415.     suffix=_$1

  3416.     shift

  3417.     echo $* | sed s/$suffix//g | print_in_columns

  3418.     exit 0

  3419. }

  3420. 

  3421. rand_list(){

  3422.     IFS=', '

  3423.     set -- $*

  3424.     unset IFS

  3425.     for thing; do

  3426.         comp=${thing%:*}

  3427.         prob=${thing#$comp}

  3428.         prob=${prob#:}

  3429.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3430.         echo "prob ${prob:-0.5}"

  3431.         printf '%s\n' $comp

  3432.     done

  3433. }

  3434. 

  3435. do_random(){

  3436.     action=$1

  3437.     shift

  3438.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3439.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3440. }

  3441. 

  3442. for opt do

  3443.     optval="${opt#*=}"

  3444.     case "$opt" in

  3445.         --extra-ldflags=*)

  3446.             add_ldflags $optval

  3447.         ;;

  3448.         --extra-ldexeflags=*)

  3449.             add_ldexeflags $optval

  3450.         ;;

  3451.         --extra-ldlibflags=*)

  3452.             add_ldlibflags $optval

  3453.         ;;

  3454.         --extra-libs=*)

  3455.             add_extralibs $optval

  3456.         ;;

  3457.         --disable-devices)

  3458.             disable $INDEV_LIST $OUTDEV_LIST

  3459.         ;;

  3460.         --enable-debug=*)

  3461.             debuglevel="$optval"

  3462.         ;;

  3463.         --disable-programs)

  3464.             disable $PROGRAM_LIST

  3465.         ;;

  3466.         --disable-everything)

  3467.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3468.         ;;

  3469.         --disable-all)

  3470.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3471.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3472.             enable avutil

  3473.         ;;

  3474.         --enable-random|--disable-random)

  3475.             action=${opt%%-random}

  3476.             do_random ${action#--} $COMPONENT_LIST

  3477.         ;;

  3478.         --enable-random=*|--disable-random=*)

  3479.             action=${opt%%-random=*}

  3480.             do_random ${action#--} $optval

  3481.         ;;

  3482.         --enable-*=*|--disable-*=*)

  3483.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3484.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3485.             eval list=\$$(toupper $thing)_LIST

  3486.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3487.             list=$(filter "$name" $list)

  3488.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3489.             $action $list

  3490.         ;;

  3491.         --enable-?*|--disable-?*)

  3492.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3493.             if is_in $option $COMPONENT_LIST; then

  3494.                 test $action = disable && action=unset

  3495.                 eval $action \$$(toupper ${option%s})_LIST

  3496.             elif is_in $option $CMDLINE_SELECT; then

  3497.                 $action $option

  3498.             else

  3499.                 die_unknown $opt

  3500.             fi

  3501.         ;;

  3502.         --list-*)

  3503.             NAME="${opt#--list-}"

  3504.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3505.             NAME=${NAME%s}

  3506.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3507.         ;;

  3508.         --help|-h) show_help

  3509.         ;;

  3510.         --quiet|-q) quiet=yes

  3511.         ;;

  3512.         --fatal-warnings) enable fatal_warnings

  3513.         ;;

  3514.         --libfuzzer=*)

  3515.             libfuzzer_path="$optval"

  3516.         ;;

  3517.         *)

  3518.             optname="${opt%%=*}"

  3519.             optname="${optname#--}"

  3520.             optname=$(echo "$optname" | sed 's/-/_/g')

  3521.             if is_in $optname $CMDLINE_SET; then

  3522.                 eval $optname='$optval'

  3523.             elif is_in $optname $CMDLINE_APPEND; then

  3524.                 append $optname "$optval"

  3525.             else

  3526.                 die_unknown $opt

  3527.             fi

  3528.         ;;

  3529.     esac

  3530. done

  3531. 

  3532. for e in $env; do

  3533.     eval "export $e"

  3534. done

  3535. 

  3536. # Mark specifically enabled, but normally autodetected libraries as requested.

  3537. for lib in $AUTODETECT_LIBS; do

  3538.     enabled $lib && request $lib

  3539. done

  3540. 

  3541. # Enable platform codecs by default.

  3542. enable_weak audiotoolbox

  3543. 

  3544. # Enable hwaccels by default.

  3545. enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc

  3546. enable_weak xlib

  3547. 

  3548. enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder

  3549. 

  3550. disabled logging && logfile=/dev/null

  3551. 

  3552. die_license_disabled() {

  3553.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3554. }

  3555. 

  3556. die_license_disabled_gpl() {

  3557.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3558. }

  3559. 

  3560. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3561. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3562. 

  3563. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3564. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3565. 

  3566. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3567. 

  3568. # Disable all the library-specific components if the library itself

  3569. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3570. 

  3571. disable_components(){

  3572.     disabled ${1} && disable $(

  3573.         eval components="\$$(toupper ${1})_COMPONENTS"

  3574.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3575.     )

  3576. }

  3577. 

  3578. map 'disable_components $v' $LIBRARY_LIST

  3579. 

  3580. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3581. set >> $logfile

  3582. 

  3583. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3584. 

  3585. enabled ossfuzz && {

  3586.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3587.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3588. }

  3589. 

  3590. case "$toolchain" in

  3591.     *-asan)

  3592.         cc_default="${toolchain%-asan}"

  3593.         add_cflags  -fsanitize=address

  3594.         add_ldflags -fsanitize=address

  3595.     ;;

  3596.     *-msan)

  3597.         cc_default="${toolchain%-msan}"

  3598.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3599.         add_ldflags -fsanitize=memory

  3600.     ;;

  3601.     *-tsan)

  3602.         cc_default="${toolchain%-tsan}"

  3603.         add_cflags  -fsanitize=thread -fPIE

  3604.         add_ldflags -fsanitize=thread -pie

  3605.         case "$toolchain" in

  3606.             gcc-tsan)

  3607.                 add_cflags  -fPIC

  3608.                 add_ldflags -fPIC

  3609.                 ;;

  3610.         esac

  3611.     ;;

  3612.     *-usan)

  3613.         cc_default="${toolchain%-usan}"

  3614.         add_cflags  -fsanitize=undefined

  3615.         add_ldflags -fsanitize=undefined

  3616.     ;;

  3617.     valgrind-*)

  3618.         target_exec_default="valgrind"

  3619.         case "$toolchain" in

  3620.             valgrind-massif)

  3621.                 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"

  3622.                 ;;

  3623.             valgrind-memcheck)

  3624.                 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"

  3625.                 ;;

  3626.         esac

  3627.     ;;

  3628.     msvc)

  3629.         # Check whether the current MSVC version needs the C99 converter.

  3630.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3631.         # support enough of C99 to build ffmpeg. Default to the new

  3632.         # behaviour if the regexp was unable to match anything, since this

  3633.         # successfully parses the version number of existing supported

  3634.         # versions that require the converter (MSVC 2010 and 2012).

  3635.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3636.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3637.             cc_default="cl"

  3638.             cxx_default="cl"

  3639.         else

  3640.             cc_default="c99wrap cl"

  3641.             cxx_default="c99wrap cl"

  3642.         fi

  3643.         ld_default="$source_path/compat/windows/mslink"

  3644.         nm_default="dumpbin -symbols"

  3645.         ar_default="lib"

  3646.         case "$arch" in

  3647.         arm*)

  3648.             as_default="armasm"

  3649.             ;;

  3650.         esac

  3651.         target_os_default="win32"

  3652.         # Use a relative path for TMPDIR. This makes sure all the

  3653.         # ffconf temp files are written with a relative path, avoiding

  3654.         # issues with msys/win32 path conversion for MSVC parameters

  3655.         # such as -Fo<file> or -out:<file>.

  3656.         TMPDIR=.

  3657.     ;;

  3658.     icl)

  3659.         cc_default="icl"

  3660.         ld_default="xilink"

  3661.         nm_default="dumpbin -symbols"

  3662.         ar_default="xilib"

  3663.         target_os_default="win32"

  3664.         TMPDIR=.

  3665.     ;;

  3666.     gcov)

  3667.         add_cflags  -fprofile-arcs -ftest-coverage

  3668.         add_ldflags -fprofile-arcs -ftest-coverage

  3669.     ;;

  3670.     llvm-cov)

  3671.         add_cflags -fprofile-arcs -ftest-coverage

  3672.         add_ldflags --coverage

  3673.     ;;

  3674.     hardened)

  3675.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3676.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3677.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3678.         add_cflags   -fPIE

  3679.         add_ldexeflags -fPIE -pie

  3680.     ;;

  3681.     ?*)

  3682.         die "Unknown toolchain $toolchain"

  3683.     ;;

  3684. esac

  3685. 

  3686. test -n "$cross_prefix" && enable cross_compile

  3687. 

  3688. if enabled cross_compile; then

  3689.     test -n "$arch" && test -n "$target_os" ||

  3690.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3691. fi

  3692. 

  3693. ar_default="${cross_prefix}${ar_default}"

  3694. cc_default="${cross_prefix}${cc_default}"

  3695. cxx_default="${cross_prefix}${cxx_default}"

  3696. nm_default="${cross_prefix}${nm_default}"

  3697. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3698. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3699.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3700. else

  3701.     ranlib_default="${cross_prefix}${ranlib_default}"

  3702. fi

  3703. strip_default="${cross_prefix}${strip_default}"

  3704. windres_default="${cross_prefix}${windres_default}"

  3705. 

  3706. sysinclude_default="${sysroot}/usr/include"

  3707. 

  3708. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3709.     target_exec target_os yasmexe

  3710. enabled cross_compile || host_cc_default=$cc

  3711. set_default host_cc

  3712. 

  3713. pkg_config_fail_message=""

  3714. if ! $pkg_config --version >/dev/null 2>&1; then

  3715.     warn "$pkg_config not found, library detection may fail."

  3716.     pkg_config=false

  3717. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3718.     pkg_config_fail_message="

  3719. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3720. fi

  3721. 

  3722. if test $doxygen != $doxygen_default && \

  3723.   ! $doxygen --version >/dev/null 2>&1; then

  3724.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3725. fi

  3726. 

  3727. exesuf() {

  3728.     case $1 in

  3729.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3730.     esac

  3731. }

  3732. 

  3733. EXESUF=$(exesuf $target_os)

  3734. HOSTEXESUF=$(exesuf $host_os)

  3735. 

  3736. # set temporary file name

  3737. : ${TMPDIR:=$TEMPDIR}

  3738. : ${TMPDIR:=$TMP}

  3739. : ${TMPDIR:=/tmp}

  3740. 

  3741. if [ -n "$tempprefix" ] ; then

  3742.     mktemp(){

  3743.         echo $tempprefix.${HOSTNAME}.${UID}

  3744.     }

  3745. elif ! check_cmd mktemp -u XXXXXX; then

  3746.     # simple replacement for missing mktemp

  3747.     # NOT SAFE FOR GENERAL USE

  3748.     mktemp(){

  3749.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3750.     }

  3751. fi

  3752. 

  3753. tmpfile(){

  3754.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3755.         (set -C; exec > $tmp) 2>/dev/null ||

  3756.         die "Unable to create temporary file in $TMPDIR."

  3757.     append TMPFILES $tmp

  3758.     eval $1=$tmp

  3759. }

  3760. 

  3761. trap 'rm -f -- $TMPFILES' EXIT

  3762. 

  3763. tmpfile TMPASM .asm

  3764. tmpfile TMPC   .c

  3765. tmpfile TMPCPP .cpp

  3766. tmpfile TMPE   $EXESUF

  3767. tmpfile TMPH   .h

  3768. tmpfile TMPM   .m

  3769. tmpfile TMPO   .o

  3770. tmpfile TMPS   .S

  3771. tmpfile TMPSH  .sh

  3772. tmpfile TMPV   .ver

  3773. 

  3774. unset -f mktemp

  3775. 

  3776. chmod +x $TMPE

  3777. 

  3778. # make sure we can execute files in $TMPDIR

  3779. cat > $TMPSH 2>> $logfile <<EOF

  3780. #! /bin/sh

  3781. EOF

  3782. chmod +x $TMPSH >> $logfile 2>&1

  3783. if ! $TMPSH >> $logfile 2>&1; then

  3784.     cat <<EOF

  3785. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3786. variable to another directory and make sure that it is not mounted noexec.

  3787. EOF

  3788.     die "Sanity test failed."

  3789. fi

  3790. 

  3791. armasm_flags(){

  3792.     for flag; do

  3793.         case $flag in

  3794.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3795.             # be passed to gas-preprocessor

  3796.             -M[TD]*)                                            ;;

  3797.             *)                  echo $flag                      ;;

  3798.         esac

  3799.    done

  3800. }

  3801. 

  3802. ccc_flags(){

  3803.     for flag; do

  3804.         case $flag in

  3805.             -std=c99)           echo -c99                       ;;

  3806.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3807.             -mieee)             echo -ieee                      ;;

  3808.             -O*|-fast)          echo $flag                      ;;

  3809.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3810.             -g)                 echo -g3                        ;;

  3811.             -Wall)              echo -msg_enable level2         ;;

  3812.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3813.             -Wl,*)              echo $flag                      ;;

  3814.             -f*|-W*)                                            ;;

  3815.             *)                  echo $flag                      ;;

  3816.         esac

  3817.    done

  3818. }

  3819. 

  3820. cparser_flags(){

  3821.     for flag; do

  3822.         case $flag in

  3823.             -Wno-switch)             echo -Wno-switch-enum ;;

  3824.             -Wno-format-zero-length) ;;

  3825.             -Wdisabled-optimization) ;;

  3826.             -Wno-pointer-sign)       echo -Wno-other ;;

  3827.             *)                       echo $flag ;;

  3828.         esac

  3829.     done

  3830. }

  3831. 

  3832. msvc_common_flags(){

  3833.     for flag; do

  3834.         case $flag in

  3835.             # In addition to specifying certain flags under the compiler

  3836.             # specific filters, they must be specified here as well or else the

  3837.             # generic catch all at the bottom will print the original flag.

  3838.             -Wall)                ;;

  3839.             -std=c99)             ;;

  3840.             # Common flags

  3841.             -fomit-frame-pointer) ;;

  3842.             -g)                   echo -Z7 ;;

  3843.             -fno-math-errno)      ;;

  3844.             -fno-common)          ;;

  3845.             -fno-signed-zeros)    ;;

  3846.             -fPIC)                ;;

  3847.             -mthumb)              ;;

  3848.             -march=*)             ;;

  3849.             -lz)                  echo zlib.lib ;;

  3850.             -lx264)               echo libx264.lib ;;

  3851.             -lstdc++)             ;;

  3852.             -l*)                  echo ${flag#-l}.lib ;;

  3853.             -LARGEADDRESSAWARE)   echo $flag ;;

  3854.             -L*)                  echo -libpath:${flag#-L} ;;

  3855.             *)                    echo $flag ;;

  3856.         esac

  3857.     done

  3858. }

  3859. 

  3860. msvc_flags(){

  3861.     msvc_common_flags "$@"

  3862.     for flag; do

  3863.         case $flag in

  3864.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3865.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3866.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3867.                                        -wd4307 \

  3868.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  3869.         esac

  3870.     done

  3871. }

  3872. 

  3873. icl_flags(){

  3874.     msvc_common_flags "$@"

  3875.     for flag; do

  3876.         case $flag in

  3877.             # Despite what Intel's documentation says -Wall, which is supported

  3878.             # on Windows, does enable remarks so disable them here.

  3879.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3880.             -std=c99)             echo -Qstd=c99 ;;

  3881.             -flto)                echo -ipo ;;

  3882.         esac

  3883.     done

  3884. }

  3885. 

  3886. icc_flags(){

  3887.     for flag; do

  3888.         case $flag in

  3889.             -flto)                echo -ipo ;;

  3890.             *)                    echo $flag ;;

  3891.         esac

  3892.     done

  3893. }

  3894. 

  3895. pgi_flags(){

  3896.     for flag; do

  3897.         case $flag in

  3898.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3899.             -fomit-frame-pointer) echo -Mnoframe ;;

  3900.             -g)                   echo -gopt ;;

  3901.             *)                    echo $flag ;;

  3902.         esac

  3903.     done

  3904. }

  3905. 

  3906. suncc_flags(){

  3907.     for flag; do

  3908.         case $flag in

  3909.             -march=*|-mcpu=*)

  3910.                 case "${flag#*=}" in

  3911.                     native)                   echo -xtarget=native       ;;

  3912.                     v9|niagara)               echo -xarch=sparc          ;;

  3913.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3914.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3915.                     i586|pentium)             echo -xchip=pentium        ;;

  3916.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3917.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3918.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3919.                     pentium4*)          echo -xtarget=pentium4           ;;

  3920.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3921.                     *-sse3)             echo -xarch=sse3                 ;;

  3922.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3923.                     bonnell)                   echo -xarch=ssse3         ;;

  3924.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3925.                     westmere)                  echo -xtarget=westmere    ;;

  3926.                     silvermont)                echo -xarch=sse4_2        ;;

  3927.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3928.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  3929.                                                echo -xarch=avx           ;;

  3930.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3931.                     btver1)                    echo -xarch=amdsse4a      ;;

  3932.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  3933.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3934.                     k8|opteron|athlon64|athlon-fx)

  3935.                                                echo -xarch=sse2a         ;;

  3936.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3937.                 esac

  3938.                 ;;

  3939.             -std=c99)             echo -xc99              ;;

  3940.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3941.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3942.             -W*,*)                echo $flag              ;;

  3943.             -f*-*|-W*|-mimpure-text)                      ;;

  3944.             -shared)              echo -G                 ;;

  3945.             *)                    echo $flag              ;;

  3946.         esac

  3947.     done

  3948. }

  3949. 

  3950. tms470_flags(){

  3951.     for flag; do

  3952.         case $flag in

  3953.             -march=*|-mcpu=*)

  3954.                 case "${flag#*=}" in

  3955.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3956.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3957.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3958.                     armv6*|arm11*)          echo -mv=6   ;;

  3959.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3960.                                             echo -mv=5e  ;;

  3961.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3962.                 esac

  3963.                 ;;

  3964.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3965.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3966.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3967.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3968.             -msoft-float)   echo --float_support=vfplib       ;;

  3969.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3970.             -g)             echo -g -mn                       ;;

  3971.             -pds=*)         echo $flag                        ;;

  3972.             -D*|-I*)        echo $flag                        ;;

  3973.             --gcc|--abi=*)  echo $flag                        ;;

  3974.             -me)            echo $flag                        ;;

  3975.         esac

  3976.     done

  3977. }

  3978. 

  3979. probe_cc(){

  3980.     pfx=$1

  3981.     _cc=$2

  3982.     first=$3

  3983. 

  3984.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3985.     unset _ld_o _ldflags _ld_lib _ld_path

  3986.     unset _depflags _DEPCMD _DEPFLAGS

  3987.     _flags_filter=echo

  3988. 

  3989.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3990.         true # no-op to avoid reading stdin in following checks

  3991.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3992.         _type=llvm_gcc

  3993.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3994.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3995.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3996.         _cflags_speed='-O3'

  3997.         _cflags_size='-Os'

  3998.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3999.         _type=gcc

  4000.         gcc_version=$($_cc --version | head -n1)

  4001.         gcc_basever=$($_cc -dumpversion)

  4002.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4003.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4004.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4005.         case $gcc_basever in

  4006.             2) ;;

  4007.             2.*) ;;

  4008.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4009.         esac

  4010.         if [ "$first" = true ]; then

  4011.             case $gcc_basever in

  4012.                 4.2*)

  4013.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4014.             esac

  4015.         fi

  4016.         _cflags_speed='-O3'

  4017.         _cflags_size='-Os'

  4018.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4019.         _type=icc

  4020.         _ident=$($_cc --version | head -n1)

  4021.         _depflags='-MMD'

  4022.         _cflags_speed='-O3'

  4023.         _cflags_size='-Os'

  4024.         _cflags_noopt='-O1'

  4025.         _flags_filter=icc_flags

  4026.     elif $_cc -v 2>&1 | grep -q xlc; then

  4027.         _type=xlc

  4028.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4029.         _cflags_speed='-O5'

  4030.         _cflags_size='-O5 -qcompact'

  4031.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  4032.         _type=ccc

  4033.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  4034.         _DEPFLAGS='-M'

  4035.         _cflags_speed='-fast'

  4036.         _cflags_size='-O1'

  4037.         _flags_filter=ccc_flags

  4038.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4039.         test -d "$sysroot" || die "No valid sysroot specified."

  4040.         _type=armcc

  4041.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4042.         armcc_conf="$PWD/armcc.conf"

  4043.         $_cc --arm_linux_configure                 \

  4044.              --arm_linux_config_file="$armcc_conf" \

  4045.              --configure_sysroot="$sysroot"        \

  4046.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4047.              die "Error creating armcc configuration file."

  4048.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4049.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4050.         as_default="${cross_prefix}gcc"

  4051.         _depflags='-MMD'

  4052.         _cflags_speed='-O3'

  4053.         _cflags_size='-Os'

  4054.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  4055.         _type=tms470

  4056.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  4057.         _flags='--gcc --abi=eabi -me'

  4058.         _cc_e='-ppl -fe=$@'

  4059.         _cc_o='-fe=$@'

  4060.         _depflags='-ppa -ppd=$(@:.o=.d)'

  4061.         _cflags_speed='-O3 -mf=5'

  4062.         _cflags_size='-O3 -mf=2'

  4063.         _flags_filter=tms470_flags

  4064.     elif $_cc -v 2>&1 | grep -q clang; then

  4065.         _type=clang

  4066.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4067.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4068.         _cflags_speed='-O3'

  4069.         _cflags_size='-Oz'

  4070.     elif $_cc -V 2>&1 | grep -q Sun; then

  4071.         _type=suncc

  4072.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4073.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4074.         _DEPFLAGS='-xM1 -xc99'

  4075.         _ldflags='-std=c99'

  4076.         _cflags_speed='-O5'

  4077.         _cflags_size='-O5 -xspace'

  4078.         _flags_filter=suncc_flags

  4079.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4080.         _type=pathscale

  4081.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4082.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4083.         _cflags_speed='-O2'

  4084.         _cflags_size='-Os'

  4085.         _flags_filter='filter_out -Wdisabled-optimization'

  4086.     elif $_cc -v 2>&1 | grep -q Open64; then

  4087.         _type=open64

  4088.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4089.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4090.         _cflags_speed='-O2'

  4091.         _cflags_size='-Os'

  4092.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4093.     elif $_cc -V 2>&1 | grep -q Portland; then

  4094.         _type=pgi

  4095.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  4096.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4097.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4098.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4099.         _cflags_noopt="-O"

  4100.         _flags_filter=pgi_flags

  4101.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4102.         _type=armasm

  4103.         _ident=$($_cc | head -n1)

  4104.         # 4509: "This form of conditional instruction is deprecated"

  4105.         _flags="-nologo -ignore 4509"

  4106.         _flags_filter=armasm_flags

  4107.     elif $_cc 2>&1 | grep -q Intel; then

  4108.         _type=icl

  4109.         _ident=$($_cc 2>&1 | head -n1)

  4110.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4111.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4112.         # versions (tested) as well.

  4113.         _cflags_speed="-O2"

  4114.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4115.         if $_cc 2>&1 | grep -q Linker; then

  4116.             _ld_o='-out:$@'

  4117.         else

  4118.             _ld_o='-Fe$@'

  4119.         fi

  4120.         _cc_o='-Fo$@'

  4121.         _cc_e='-P'

  4122.         _flags_filter=icl_flags

  4123.         _ld_lib='lib%.a'

  4124.         _ld_path='-libpath:'

  4125.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4126.         _flags='-nologo -Qdiag-error:4044,10157'

  4127.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4128.         # with MSVC which enables it by default.

  4129.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4130.         disable stripping

  4131.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4132.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4133.         # the -? parameter gives the help output which contains an identifyable

  4134.         # string, while it gives an error in other modes.

  4135.         _type=lld-link

  4136.         # The link.exe mode doesn't have a switch for getting the version,

  4137.         # but we can force it back to gnu mode and get the version from there.

  4138.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4139.         _ld_o='-out:$@'

  4140.         _flags_filter=msvc_flags

  4141.         _ld_lib='lib%.a'

  4142.         _ld_path='-libpath:'

  4143.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4144.         _type=msvc

  4145.         _ident=$($_cc 2>&1 | head -n1)

  4146.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4147.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4148.         _cflags_speed="-O2"

  4149.         _cflags_size="-O1"

  4150.         _cflags_noopt="-O1"

  4151.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4152.             _ld_o='-out:$@'

  4153.         else

  4154.             _ld_o='-Fe$@'

  4155.         fi

  4156.         _cc_o='-Fo$@'

  4157.         _cc_e='-P -Fi$@'

  4158.         _flags_filter=msvc_flags

  4159.         _ld_lib='lib%.a'

  4160.         _ld_path='-libpath:'

  4161.         _flags='-nologo'

  4162.         disable stripping

  4163.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4164.         _type=cparser

  4165.         _ident=$($_cc --version | head -n1)

  4166.         _depflags='-MMD'

  4167.         _cflags_speed='-O4'

  4168.         _cflags_size='-O2'

  4169.         _flags_filter=cparser_flags

  4170.     fi

  4171. 

  4172.     eval ${pfx}_type=\$_type

  4173.     eval ${pfx}_ident=\$_ident

  4174. }

  4175. 

  4176. set_ccvars(){

  4177.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4178.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4179.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4180. 

  4181.     if [ -n "$_depflags" ]; then

  4182.         eval ${1}_DEPFLAGS=\$_depflags

  4183.     else

  4184.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4185.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4186.         eval DEP${1}FLAGS=\$_flags

  4187.     fi

  4188. }

  4189. 

  4190. probe_cc cc "$cc" "true"

  4191. cflags_filter=$_flags_filter

  4192. cflags_speed=$_cflags_speed

  4193. cflags_size=$_cflags_size

  4194. cflags_noopt=$_cflags_noopt

  4195. add_cflags $_flags $_cflags

  4196. cc_ldflags=$_ldflags

  4197. set_ccvars CC

  4198. set_ccvars CXX

  4199. 

  4200. probe_cc hostcc "$host_cc"

  4201. host_cflags_filter=$_flags_filter

  4202. add_host_cflags  $_flags $_cflags

  4203. set_ccvars HOSTCC

  4204. 

  4205. test -n "$cc_type" && enable $cc_type ||

  4206.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4207. 

  4208. : ${as_default:=$cc}

  4209. : ${objcc_default:=$cc}

  4210. : ${dep_cc_default:=$cc}

  4211. : ${ld_default:=$cc}

  4212. : ${host_ld_default:=$host_cc}

  4213. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4214. 

  4215. probe_cc as "$as"

  4216. asflags_filter=$_flags_filter

  4217. add_asflags $_flags $_cflags

  4218. set_ccvars AS

  4219. 

  4220. probe_cc objcc "$objcc"

  4221. objcflags_filter=$_flags_filter

  4222. add_objcflags $_flags $_cflags

  4223. set_ccvars OBJC

  4224. 

  4225. probe_cc ld "$ld"

  4226. ldflags_filter=$_flags_filter

  4227. add_ldflags $_flags $_ldflags

  4228. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4229. LD_O=${_ld_o-$LD_O}

  4230. LD_LIB=${_ld_lib-$LD_LIB}

  4231. LD_PATH=${_ld_path-$LD_PATH}

  4232. 

  4233. probe_cc hostld "$host_ld"

  4234. host_ldflags_filter=$_flags_filter

  4235. add_host_ldflags $_flags $_ldflags

  4236. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4237. 

  4238. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4239.     probe_cc depcc "$dep_cc"

  4240.     CCDEP=${_DEPCMD:-$DEPCMD}

  4241.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4242.     DEPCCFLAGS=$_flags

  4243. fi

  4244. 

  4245. if $ar 2>&1 | grep -q Microsoft; then

  4246.     arflags="-nologo"

  4247.     ar_o='-out:$@'

  4248. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4249.     arflags="rq"

  4250.     ar_o='$@'

  4251. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4252.     arflags='-Xany -r -c'

  4253.     ar_o='$@'

  4254. elif $ar 2>&1 | grep -q "\[D\] "; then

  4255.     arflags="rcD"

  4256.     ar_o='$@'

  4257. else

  4258.     arflags="rc"

  4259.     ar_o='$@'

  4260. fi

  4261. 

  4262. add_cflags $extra_cflags

  4263. add_cxxflags $extra_cxxflags

  4264. add_objcflags $extra_objcflags

  4265. add_asflags $extra_cflags

  4266. 

  4267. if test -n "$sysroot"; then

  4268.     case "$cc_type" in

  4269.         gcc|llvm_gcc|clang)

  4270.             add_cppflags --sysroot="$sysroot"

  4271.             add_ldflags --sysroot="$sysroot"

  4272. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4273.             add_cppflags -isysroot "$sysroot"

  4274.             add_ldflags -isysroot "$sysroot"

  4275.         ;;

  4276.         tms470)

  4277.             add_cppflags -I"$sysinclude"

  4278.             add_ldflags  --sysroot="$sysroot"

  4279.         ;;

  4280.     esac

  4281. fi

  4282. 

  4283. if test "$cpu" = host; then

  4284.     enabled cross_compile &&

  4285.         die "--cpu=host makes no sense when cross-compiling."

  4286. 

  4287.     case "$cc_type" in

  4288.         gcc|llvm_gcc)

  4289.             check_native(){

  4290.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4291.                 sed -n "/cc1.*$1=/{

  4292.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4293.                             p

  4294.                             q

  4295.                         }" $TMPE

  4296.             }

  4297.             cpu=$(check_native -march || check_native -mcpu)

  4298.         ;;

  4299.         clang)

  4300.             check_native(){

  4301.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4302.                 sed -n "/cc1.*-target-cpu /{

  4303.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4304.                             p

  4305.                             q

  4306.                         }" $TMPE

  4307.             }

  4308.             cpu=$(check_native -march)

  4309.         ;;

  4310.     esac

  4311. 

  4312.     test "${cpu:-host}" = host &&

  4313.         die "--cpu=host not supported with compiler $cc"

  4314. fi

  4315. 

  4316. # Deal with common $arch aliases

  4317. case "$arch" in

  4318.     aarch64|arm64)

  4319.         arch="aarch64"

  4320.     ;;

  4321.     arm*|iPad*|iPhone*)

  4322.         arch="arm"

  4323.     ;;

  4324.     mips*|IP*)

  4325.         case "$arch" in

  4326.         *el)

  4327.             add_cppflags -EL

  4328.             add_ldflags -EL

  4329.         ;;

  4330.         *eb)

  4331.             add_cppflags -EB

  4332.             add_ldflags -EB

  4333.         ;;

  4334.         esac

  4335.         arch="mips"

  4336.     ;;

  4337.     parisc*|hppa*)

  4338.         arch="parisc"

  4339.     ;;

  4340.     "Power Macintosh"|ppc*|powerpc*)

  4341.         arch="ppc"

  4342.     ;;

  4343.     s390|s390x)

  4344.         arch="s390"

  4345.     ;;

  4346.     sh4|sh)

  4347.         arch="sh4"

  4348.     ;;

  4349.     sun4*|sparc*)

  4350.         arch="sparc"

  4351.     ;;

  4352.     tilegx|tile-gx)

  4353.         arch="tilegx"

  4354.     ;;

  4355.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4356.         arch="x86"

  4357.     ;;

  4358. esac

  4359. 

  4360. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4361. enable $arch

  4362. 

  4363. # Add processor-specific flags

  4364. if enabled aarch64; then

  4365. 

  4366.     case $cpu in

  4367.         armv*)

  4368.             cpuflags="-march=$cpu"

  4369.         ;;

  4370.         *)

  4371.             cpuflags="-mcpu=$cpu"

  4372.         ;;

  4373.     esac

  4374. 

  4375. elif enabled alpha; then

  4376. 

  4377.     cpuflags="-mcpu=$cpu"

  4378. 

  4379. elif enabled arm; then

  4380. 

  4381.     check_arm_arch() {

  4382.         check_cpp_condition stddef.h \

  4383.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4384.             $cpuflags

  4385.     }

  4386. 

  4387.     probe_arm_arch() {

  4388.         if   check_arm_arch 4;        then echo armv4

  4389.         elif check_arm_arch 4T;       then echo armv4t

  4390.         elif check_arm_arch 5;        then echo armv5

  4391.         elif check_arm_arch 5E;       then echo armv5e

  4392.         elif check_arm_arch 5T;       then echo armv5t

  4393.         elif check_arm_arch 5TE;      then echo armv5te

  4394.         elif check_arm_arch 5TEJ;     then echo armv5te

  4395.         elif check_arm_arch 6;        then echo armv6

  4396.         elif check_arm_arch 6J;       then echo armv6j

  4397.         elif check_arm_arch 6K;       then echo armv6k

  4398.         elif check_arm_arch 6Z;       then echo armv6z

  4399.         elif check_arm_arch 6ZK;      then echo armv6zk

  4400.         elif check_arm_arch 6T2;      then echo armv6t2

  4401.         elif check_arm_arch 7;        then echo armv7

  4402.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4403.         elif check_arm_arch 7S;       then echo armv7-a

  4404.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4405.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4406.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4407.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4408.         fi

  4409.     }

  4410. 

  4411.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4412. 

  4413.     case $cpu in

  4414.         armv*)

  4415.             cpuflags="-march=$cpu"

  4416.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4417.         ;;

  4418.         *)

  4419.             cpuflags="-mcpu=$cpu"

  4420.             case $cpu in

  4421.                 cortex-a*)                               subarch=armv7a  ;;

  4422.                 cortex-r*)                               subarch=armv7r  ;;

  4423.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4424.                 arm11*)                                  subarch=armv6   ;;

  4425.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4426.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4427.                 *)                             subarch=$(probe_arm_arch) ;;

  4428.             esac

  4429.         ;;

  4430.     esac

  4431. 

  4432.     case "$subarch" in

  4433.         armv5t*)    enable fast_clz                ;;

  4434.         armv[6-8]*)

  4435.             enable fast_clz

  4436.             disabled fast_unaligned || enable fast_unaligned

  4437.             ;;

  4438.     esac

  4439. 

  4440. elif enabled avr32; then

  4441. 

  4442.     case $cpu in

  4443.         ap7[02]0[0-2])

  4444.             subarch="avr32_ap"

  4445.             cpuflags="-mpart=$cpu"

  4446.         ;;

  4447.         ap)

  4448.             subarch="avr32_ap"

  4449.             cpuflags="-march=$cpu"

  4450.         ;;

  4451.         uc3[ab]*)

  4452.             subarch="avr32_uc"

  4453.             cpuflags="-mcpu=$cpu"

  4454.         ;;

  4455.         uc)

  4456.             subarch="avr32_uc"

  4457.             cpuflags="-march=$cpu"

  4458.         ;;

  4459.     esac

  4460. 

  4461. elif enabled bfin; then

  4462. 

  4463.     cpuflags="-mcpu=$cpu"

  4464. 

  4465. elif enabled mips; then

  4466. 

  4467.     cpuflags="-march=$cpu"

  4468. 

  4469.     if [ "$cpu" != "generic" ]; then

  4470.         disable mips32r2

  4471.         disable mips32r5

  4472.         disable mips64r2

  4473.         disable mips32r6

  4474.         disable mips64r6

  4475.         disable loongson2

  4476.         disable loongson3

  4477. 

  4478.         case $cpu in

  4479.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4480.                 enable mips32r2

  4481.                 disable msa

  4482.             ;;

  4483.             p5600|i6400|p6600)

  4484.                 disable mipsdsp

  4485.                 disable mipsdspr2

  4486.             ;;

  4487.             loongson*)

  4488.                 enable loongson2

  4489.                 enable loongson3

  4490.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4491.                 enable simd_align_16

  4492.                 enable fast_64bit

  4493.                 enable fast_clz

  4494.                 enable fast_cmov

  4495.                 enable fast_unaligned

  4496.                 disable aligned_stack

  4497.                 disable mipsfpu

  4498.                 disable mipsdsp

  4499.                 disable mipsdspr2

  4500.                 case $cpu in

  4501.                     loongson3*)

  4502.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4503.                     ;;

  4504.                     loongson2e)

  4505.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4506.                     ;;

  4507.                     loongson2f)

  4508.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4509.                     ;;

  4510.                 esac

  4511.             ;;

  4512.             *)

  4513.                 # Unknown CPU. Disable everything.

  4514.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4515.                 disable mipsfpu

  4516.                 disable mipsdsp

  4517.                 disable mipsdspr2

  4518.                 disable msa

  4519.                 disable mmi

  4520.             ;;

  4521.         esac

  4522. 

  4523.         case $cpu in

  4524.             24kc)

  4525.                 disable mipsfpu

  4526.                 disable mipsdsp

  4527.                 disable mipsdspr2

  4528.             ;;

  4529.             24kf*)

  4530.                 disable mipsdsp

  4531.                 disable mipsdspr2

  4532.             ;;

  4533.             24kec|34kc|1004kc)

  4534.                 disable mipsfpu

  4535.                 disable mipsdspr2

  4536.             ;;

  4537.             24kef*|34kf*|1004kf*)

  4538.                 disable mipsdspr2

  4539.             ;;

  4540.             74kc)

  4541.                 disable mipsfpu

  4542.             ;;

  4543.             p5600)

  4544.                 enable mips32r5

  4545.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4546.             ;;

  4547.             i6400)

  4548.                 enable mips64r6

  4549.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4550.             ;;

  4551.             p6600)

  4552.                 enable mips64r6

  4553.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4554.             ;;

  4555.         esac

  4556.     else

  4557.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4558.         warn 'generic cpu selected'

  4559.     fi

  4560. 

  4561. elif enabled ppc; then

  4562. 

  4563.     disable ldbrx

  4564. 

  4565.     case $(tolower $cpu) in

  4566.         601|ppc601|powerpc601)

  4567.             cpuflags="-mcpu=601"

  4568.             disable altivec

  4569.         ;;

  4570.         603*|ppc603*|powerpc603*)

  4571.             cpuflags="-mcpu=603"

  4572.             disable altivec

  4573.         ;;

  4574.         604*|ppc604*|powerpc604*)

  4575.             cpuflags="-mcpu=604"

  4576.             disable altivec

  4577.         ;;

  4578.         g3|75*|ppc75*|powerpc75*)

  4579.             cpuflags="-mcpu=750"

  4580.             disable altivec

  4581.         ;;

  4582.         g4|745*|ppc745*|powerpc745*)

  4583.             cpuflags="-mcpu=7450"

  4584.             disable vsx

  4585.         ;;

  4586.         74*|ppc74*|powerpc74*)

  4587.             cpuflags="-mcpu=7400"

  4588.             disable vsx

  4589.         ;;

  4590.         g5|970|ppc970|powerpc970)

  4591.             cpuflags="-mcpu=970"

  4592.             disable vsx

  4593.         ;;

  4594.         power[3-6]*)

  4595.             cpuflags="-mcpu=$cpu"

  4596.             disable vsx

  4597.         ;;

  4598.         power[7-8]*)

  4599.             cpuflags="-mcpu=$cpu"

  4600.         ;;

  4601.         cell)

  4602.             cpuflags="-mcpu=cell"

  4603.             enable ldbrx

  4604.             disable vsx

  4605.         ;;

  4606.         e500mc)

  4607.             cpuflags="-mcpu=e500mc"

  4608.             disable altivec

  4609.         ;;

  4610.         e500v2)

  4611.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4612.             disable altivec

  4613.             disable dcbzl

  4614.         ;;

  4615.         e500)

  4616.             cpuflags="-mcpu=8540 -mhard-float"

  4617.             disable altivec

  4618.             disable dcbzl

  4619.         ;;

  4620.     esac

  4621. 

  4622. elif enabled sparc; then

  4623. 

  4624.     case $cpu in

  4625.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4626.             cpuflags="-mcpu=$cpu"

  4627.         ;;

  4628.         ultrasparc*|niagara[234])

  4629.             cpuflags="-mcpu=$cpu"

  4630.         ;;

  4631.     esac

  4632. 

  4633. elif enabled x86; then

  4634. 

  4635.     case $cpu in

  4636.         i[345]86|pentium)

  4637.             cpuflags="-march=$cpu"

  4638.             disable i686

  4639.             disable mmx

  4640.         ;;

  4641.         # targets that do NOT support nopl and conditional mov (cmov)

  4642.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4643.             cpuflags="-march=$cpu"

  4644.             disable i686

  4645.         ;;

  4646.         # targets that do support nopl and conditional mov (cmov)

  4647.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4648.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4649.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4650.             cpuflags="-march=$cpu"

  4651.             enable i686

  4652.             enable fast_cmov

  4653.         ;;

  4654.         # targets that do support conditional mov but on which it's slow

  4655.         pentium4|pentium4m|prescott|nocona)

  4656.             cpuflags="-march=$cpu"

  4657.             enable i686

  4658.             disable fast_cmov

  4659.         ;;

  4660.     esac

  4661. 

  4662. fi

  4663. 

  4664. if [ "$cpu" != generic ]; then

  4665.     add_cflags  $cpuflags

  4666.     add_asflags $cpuflags

  4667.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4668. fi

  4669. 

  4670. # compiler sanity check

  4671. check_exec <<EOF

  4672. int main(void){ return 0; }

  4673. EOF

  4674. if test "$?" != 0; then

  4675.     echo "$cc is unable to create an executable file."

  4676.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4677.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4678.         echo "Only do this if you know what cross compiling means."

  4679.     fi

  4680.     die "C compiler test failed."

  4681. fi

  4682. 

  4683. add_cppflags -D_ISOC99_SOURCE

  4684. add_cxxflags -D__STDC_CONSTANT_MACROS

  4685. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4686. 

  4687. # some compilers silently accept -std=c11, so we also need to check that the

  4688. # version macro is defined properly

  4689. if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then

  4690.     add_cflags -std=c11

  4691. else

  4692.     check_cflags -std=c99

  4693. fi

  4694. 

  4695. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4696. #include <stdlib.h>

  4697. EOF

  4698. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4699. #include <stdlib.h>

  4700. EOF

  4701. 

  4702. add_host_cppflags -D_ISOC99_SOURCE

  4703. check_host_cflags -std=c99

  4704. check_host_cflags -Wall

  4705. check_host_cflags -O3

  4706. 

  4707. check_64bit(){

  4708.     arch32=$1

  4709.     arch64=$2

  4710.     expr=$3

  4711.     check_code cc "" "int test[2*($expr) - 1]" &&

  4712.         subarch=$arch64 || subarch=$arch32

  4713. }

  4714. 

  4715. case "$arch" in

  4716.     aarch64|alpha|ia64)

  4717.         spic=$shared

  4718.     ;;

  4719.     mips)

  4720.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4721.         spic=$shared

  4722.     ;;

  4723.     parisc)

  4724.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4725.         spic=$shared

  4726.     ;;

  4727.     ppc)

  4728.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4729.         spic=$shared

  4730.     ;;

  4731.     s390)

  4732.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4733.         spic=$shared

  4734.     ;;

  4735.     sparc)

  4736.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4737.         spic=$shared

  4738.     ;;

  4739.     x86)

  4740.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4741.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4742.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4743.             subarch=x86_64

  4744.         if test "$subarch" = "x86_64"; then

  4745.             spic=$shared

  4746.         fi

  4747.     ;;

  4748.     ppc)

  4749.         check_cc <<EOF && subarch="ppc64"

  4750.         int test[(int)sizeof(char*) - 7];

  4751. EOF

  4752.     ;;

  4753. esac

  4754. 

  4755. enable $subarch

  4756. enabled spic && enable_weak pic

  4757. 

  4758. # OS specific

  4759. case $target_os in

  4760.     aix)

  4761.         SHFLAGS=-shared

  4762.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4763.         enabled shared && add_ldflags -Wl,-brtl

  4764.         ;;

  4765.     android)

  4766.         disable symver

  4767.         enable section_data_rel_ro

  4768.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4769.         SLIB_INSTALL_LINKS=

  4770.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4771.         ;;

  4772.     haiku)

  4773.         prefix_default="/boot/common"

  4774.         network_extralibs="-lnetwork"

  4775.         host_extralibs=

  4776.         ;;

  4777.     sunos)

  4778.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4779.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4780.         network_extralibs="-lsocket -lnsl"

  4781.         add_cppflags -D__EXTENSIONS__

  4782.         # When using suncc to build, the Solaris linker will mark

  4783.         # an executable with each instruction set encountered by

  4784.         # the Solaris assembler.  As our libraries contain their own

  4785.         # guards for processor-specific code, instead suppress

  4786.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4787.         enabled_all suncc x86 &&

  4788.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4789.             add_ldflags -Wl,-M,mapfile

  4790.         nm_default='nm -P -g'

  4791.         version_script='-M'

  4792.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4793.         ;;

  4794.     netbsd)

  4795.         disable symver

  4796.         oss_indev_extralibs="-lossaudio"

  4797.         oss_outdev_extralibs="-lossaudio"

  4798.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4799.         ;;

  4800.     openbsd|bitrig)

  4801.         disable symver

  4802.         SHFLAGS='-shared'

  4803.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4804.         SLIB_INSTALL_LINKS=

  4805.         oss_indev_extralibs="-lossaudio"

  4806.         oss_outdev_extralibs="-lossaudio"

  4807.         ;;

  4808.     dragonfly)

  4809.         disable symver

  4810.         ;;

  4811.     freebsd)

  4812.         ;;

  4813.     bsd/os)

  4814.         add_extralibs -lpoll -lgnugetopt

  4815.         strip="strip -d"

  4816.         ;;

  4817.     darwin)

  4818.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4819.         install_name_dir_default='$(SHLIBDIR)'

  4820.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4821.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4822.         strip="${strip} -x"

  4823.         add_ldflags -Wl,-dynamic,-search_paths_first

  4824.         SLIBSUF=".dylib"

  4825.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4826.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4827.         objformat="macho"

  4828.         enabled x86_64 && objformat="macho64"

  4829.         enabled_any pic shared x86_64 ||

  4830.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4831.         check_header dispatch/dispatch.h &&

  4832.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4833.         version_script='-exported_symbols_list'

  4834.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4835.         ;;

  4836.     msys*)

  4837.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4838.         ;;

  4839.     mingw32*|mingw64*)

  4840.         if test $target_os = "mingw32ce"; then

  4841.             disable network

  4842.         else

  4843.             target_os=mingw32

  4844.         fi

  4845.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4846.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4847.         LIBTARGET=i386

  4848.         if enabled x86_64; then

  4849.             LIBTARGET="i386:x86-64"

  4850.         elif enabled arm; then

  4851.             LIBTARGET=arm-wince

  4852.         fi

  4853.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4854.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4855.         shlibdir_default="$bindir_default"

  4856.         SLIBPREF=""

  4857.         SLIBSUF=".dll"

  4858.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4859.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4860.         dlltool="${cross_prefix}dlltool"

  4861.         if check_cmd lib.exe -list; then

  4862.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4863.             if enabled x86_64; then

  4864.                 LIBTARGET=x64

  4865.             fi

  4866.         elif check_cmd $dlltool --version; then

  4867.             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)'

  4868.         fi

  4869.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4870.         SLIB_INSTALL_LINKS=

  4871.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4872.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4873.         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'

  4874.         objformat="win32"

  4875.         ranlib=:

  4876.         enable dos_paths

  4877.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4878.         # Lets work around some stupidity in binutils.

  4879.         # ld will strip relocations from executables even though we need them

  4880.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4881.         # however ld then forgets what the entry point should be (oops) so we

  4882.         # have to manually (re)set it.

  4883.         if enabled x86_32; then

  4884.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4885.         elif enabled x86_64; then

  4886.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4887.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4888.             # Set image base >4GB for extra entropy with HEASLR

  4889.             add_ldexeflags -Wl,--image-base,0x140000000

  4890.             append SHFLAGS -Wl,--image-base,0x180000000

  4891.         fi

  4892.         ;;

  4893.     win32|win64)

  4894.         disable symver

  4895.         if enabled shared; then

  4896.             # Link to the import library instead of the normal static library

  4897.             # for shared libs.

  4898.             LD_LIB='%.lib'

  4899.             # Cannot build both shared and static libs with MSVC or icl.

  4900.             disable static

  4901.         fi

  4902.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4903.         shlibdir_default="$bindir_default"

  4904.         SLIBPREF=""

  4905.         SLIBSUF=".dll"

  4906.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4907.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4908.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4909.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4910.         SLIB_INSTALL_LINKS=

  4911.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4912.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4913.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4914.         objformat="win32"

  4915.         ranlib=:

  4916.         enable dos_paths

  4917.         ;;

  4918.     cygwin*)

  4919.         target_os=cygwin

  4920.         shlibdir_default="$bindir_default"

  4921.         SLIBPREF="cyg"

  4922.         SLIBSUF=".dll"

  4923.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4924.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4925.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4926.         SLIB_INSTALL_LINKS=

  4927.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4928.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4929.         objformat="win32"

  4930.         enable dos_paths

  4931.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4932.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4933.         ;;

  4934.     *-dos|freedos|opendos)

  4935.         network_extralibs="-lsocket"

  4936.         objformat="coff"

  4937.         enable dos_paths

  4938.         add_cppflags -U__STRICT_ANSI__

  4939.         ;;

  4940.     linux)

  4941.         enable dv1394

  4942.         enable section_data_rel_ro

  4943.         ;;

  4944.     irix*)

  4945.         target_os=irix

  4946.         ranlib="echo ignoring ranlib"

  4947.         ;;

  4948.     os/2*)

  4949.         strip="lxlite -CS"

  4950.         objformat="aout"

  4951.         add_cppflags -D_GNU_SOURCE

  4952.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4953.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4954.         LIBSUF="_s.a"

  4955.         SLIBPREF=""

  4956.         SLIBSUF=".dll"

  4957.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4958.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4959.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  4960.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  4961.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  4962.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  4963.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  4964.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  4965.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  4966.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4967.         SLIB_INSTALL_LINKS=

  4968.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  4969.         enable dos_paths

  4970.         enable_weak os2threads

  4971.         ;;

  4972.     gnu/kfreebsd)

  4973.         add_cppflags -D_BSD_SOURCE

  4974.         ;;

  4975.     gnu)

  4976.         ;;

  4977.     qnx)

  4978.         add_cppflags -D_QNX_SOURCE

  4979.         network_extralibs="-lsocket"

  4980.         ;;

  4981.     symbian)

  4982.         SLIBSUF=".dll"

  4983.         enable dos_paths

  4984.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4985.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4986.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4987.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4988.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4989.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4990.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4991.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4992.         ;;

  4993.     osf1)

  4994.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4995.         ;;

  4996.     minix)

  4997.         ;;

  4998.     none)

  4999.         ;;

  5000.     *)

  5001.         die "Unknown OS '$target_os'."

  5002.         ;;

  5003. esac

  5004. 

  5005. # test if creating links works

  5006. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5007. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5008. mkdir "$link_dest"

  5009. $ln_s "$link_dest" "$link_name"

  5010. touch "$link_dest/test_file"

  5011. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5012.     # create link to source path

  5013.     [ -e src ] && rm src

  5014.     $ln_s "$source_path" src

  5015.     source_link=src

  5016. else

  5017.     # creating directory links doesn't work

  5018.     # fall back to using the full source path

  5019.     source_link="$source_path"

  5020. fi

  5021. # cleanup

  5022. rm -r "$link_dest"

  5023. rm -r "$link_name"

  5024. 

  5025. # determine libc flavour

  5026. 

  5027. probe_libc(){

  5028.     pfx=$1

  5029.     pfx_no_=${pfx%_}

  5030.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5031.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5032.         eval ${pfx}libc_type=uclibc

  5033.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5034.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5035.         eval ${pfx}libc_type=glibc

  5036.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5037.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5038.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5039.         eval ${pfx}libc_type=newlib

  5040.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5041.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5042.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5043.         eval ${pfx}libc_type=mingw64

  5044.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5045.             add_compat msvcrt/snprintf.o

  5046.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5047.         fi

  5048.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5049.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5050.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5051.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5052.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5053.         eval ${pfx}libc_type=mingw32

  5054.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5055.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5056.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5057.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5058.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  5059.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5060.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&

  5061.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5062.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5063.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5064.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5065.         eval ${pfx}libc_type=msvcrt

  5066.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5067.             if [ "$pfx" = host_ ]; then

  5068.                 add_host_cppflags -Dsnprintf=_snprintf

  5069.             else

  5070.                 add_compat strtod.o strtod=avpriv_strtod

  5071.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5072.                                              _snprintf=avpriv_snprintf  \

  5073.                                              vsnprintf=avpriv_vsnprintf

  5074.             fi

  5075.         fi

  5076.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5077.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5078.         # 0x601 by default unless something else is set by the user.

  5079.         # This can easily lead to us detecting functions only present

  5080.         # in such new versions and producing binaries requiring windows 7.0.

  5081.         # Therefore explicitly set the default to XP unless the user has

  5082.         # set something else on the command line.

  5083.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5084.         # family. For these cases, configure is free to use any functions

  5085.         # found in the SDK headers by default. (Alternatively, we could force

  5086.         # _WIN32_WINNT to 0x0602 in that case.)

  5087.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5088.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5089. #ifdef WINAPI_FAMILY

  5090. #include <winapifamily.h>

  5091. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5092. #error not desktop

  5093. #endif

  5094. #endif

  5095. EOF

  5096.         if [ "$pfx" = "" ]; then

  5097.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5098.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5099.         fi

  5100.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5101.         eval ${pfx}libc_type=klibc

  5102.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5103.         eval ${pfx}libc_type=bionic

  5104.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5105.         eval ${pfx}libc_type=solaris

  5106.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5107.     fi

  5108.     check_${pfx}cc <<EOF

  5109. #include <time.h>

  5110. void *v = localtime_r;

  5111. EOF

  5112. 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

  5113. #include <time.h>

  5114. void *v = localtime_r;

  5115. EOF

  5116. 

  5117. }

  5118. 

  5119. probe_libc

  5120. test -n "$libc_type" && enable libc_$libc_type

  5121. probe_libc host_

  5122. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5123. 

  5124. case $libc_type in

  5125.     bionic)

  5126.         add_compat strtod.o strtod=avpriv_strtod

  5127.         ;;

  5128. esac

  5129. 

  5130. # hacks for compiler/libc/os combinations

  5131. 

  5132. if enabled_all tms470 libc_glibc; then

  5133.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5134.     add_cppflags -D__USER_LABEL_PREFIX__=

  5135.     add_cppflags -D__builtin_memset=memset

  5136.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5137.     add_cflags   -pds=48    # incompatible redefinition of macro

  5138. fi

  5139. 

  5140. if enabled_all ccc libc_glibc; then

  5141.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  5142. fi

  5143. 

  5144. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5145.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5146. 

  5147. esc(){

  5148.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5149. }

  5150. 

  5151. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  5152. 

  5153. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5154. 

  5155. set_default libdir

  5156. : ${shlibdir_default:="$libdir"}

  5157. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5158. 

  5159. set_default $PATHS_LIST

  5160. set_default nm

  5161. 

  5162. # we need to build at least one lib type

  5163. if ! enabled_any static shared; then

  5164.     cat <<EOF

  5165. At least one library type must be built.

  5166. Specify --enable-static to build the static libraries or --enable-shared to

  5167. build the shared libraries as well. To only build the shared libraries specify

  5168. --disable-static in addition to --enable-shared.

  5169. EOF

  5170.     exit 1

  5171. fi

  5172. 

  5173. disabled optimizations || check_cflags -fomit-frame-pointer

  5174. 

  5175. enable_weak_pic() {

  5176.     disabled pic && return

  5177.     enable pic

  5178.     add_cppflags -DPIC

  5179.     case "$target_os" in

  5180.     mingw*|cygwin*)

  5181.         ;;

  5182.     *)

  5183.         add_cflags -fPIC

  5184.         ;;

  5185.     esac

  5186.     add_asflags  -fPIC

  5187. }

  5188. 

  5189. enabled pic && enable_weak_pic

  5190. 

  5191. check_cc <<EOF || die "Symbol mangling check failed."

  5192. int ff_extern;

  5193. EOF

  5194. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5195. extern_prefix=${sym%%ff_extern*}

  5196. 

  5197. check_cc <<EOF && enable_weak inline_asm

  5198. void foo(void) { __asm__ volatile ("" ::); }

  5199. EOF

  5200. 

  5201. _restrict=

  5202. for restrict_keyword in restrict __restrict__ __restrict; do

  5203.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5204. void foo(char * $restrict_keyword p);

  5205. EOF

  5206. done

  5207. 

  5208. check_cc <<EOF && enable pragma_deprecated

  5209. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5210. EOF

  5211. 

  5212. check_cc <<EOF && enable attribute_packed

  5213. struct { int x; } __attribute__((packed)) x;

  5214. EOF

  5215. 

  5216. check_cc <<EOF && enable attribute_may_alias

  5217. union { int x; } __attribute__((may_alias)) x;

  5218. EOF

  5219. 

  5220. check_cc <<EOF || die "endian test failed"

  5221. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5222. EOF

  5223. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5224. 

  5225. if ! enabled ppc64 || enabled bigendian; then

  5226.     disable vsx

  5227. fi

  5228. 

  5229. check_gas() {

  5230.     log "check_gas using '$as' as AS"

  5231.     # :vararg is used on aarch64, arm and ppc altivec

  5232.     check_as <<EOF || return 1

  5233. .macro m n, y:vararg=0

  5234. \n: .int \y

  5235. .endm

  5236. m x

  5237. EOF

  5238.     # .altmacro is only used in arm asm

  5239.     ! enabled arm || check_as <<EOF || return 1

  5240. .altmacro

  5241. EOF

  5242.     enable gnu_as

  5243.     return 0

  5244. }

  5245. 

  5246. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5247.     nogas=:

  5248.     enabled_any arm aarch64 && nogas=die

  5249.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5250.     as_noop=-v

  5251. 

  5252.     case $as_type in

  5253.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5254.         gcc)  gaspp_as_type=gas ;;

  5255.         *)    gaspp_as_type=$as_type ;;

  5256.     esac

  5257. 

  5258.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5259. 

  5260.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5261.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5262.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5263. 

  5264.     if ! check_gas ; then

  5265.         as=${gas:=$as}

  5266.         check_gas || \

  5267.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5268.     fi

  5269. 

  5270.     check_as <<EOF && enable as_func

  5271. .func test

  5272. .endfunc

  5273. EOF

  5274. fi

  5275. 

  5276. check_inline_asm inline_asm_labels '"1:\n"'

  5277. 

  5278. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5279. 

  5280. if enabled aarch64; then

  5281.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5282.     # internal assembler in clang 3.3 does not support this instruction

  5283.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5284.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5285. 

  5286.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5287. 

  5288. elif enabled alpha; then

  5289. 

  5290.     check_cflags -mieee

  5291. 

  5292. elif enabled arm; then

  5293. 

  5294.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5295. 

  5296.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5297. float func(float a, float b){ return a+b; }

  5298. EOF

  5299. 

  5300.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5301. 

  5302.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5303.         enable vfp_args

  5304.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5305.         enable vfp_args

  5306.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5307.         case "${cross_prefix:-$cc}" in

  5308.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5309.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5310. __asm__ (".eabi_attribute 28, 1");

  5311. int main(void) { return 0; }

  5312. EOF

  5313.         esac

  5314.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5315.     fi

  5316. 

  5317.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5318.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5319.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5320.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5321.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5322.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5323.     enabled setend  && check_insn setend  'setend be'

  5324. 

  5325.     [ $target_os = linux ] || [ $target_os = android ] ||

  5326.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5327.             $ARCH_EXT_LIST_ARM

  5328. 

  5329.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5330. 

  5331.     check_as <<EOF && enable as_dn_directive

  5332. ra .dn d0.i16

  5333. .unreq ra

  5334. EOF

  5335.     check_as <<EOF && enable as_fpu_directive

  5336. .fpu neon

  5337. EOF

  5338. 

  5339.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5340.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  5341. .object_arch armv4

  5342. EOF

  5343. 

  5344.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5345. 

  5346. elif enabled mips; then

  5347. 

  5348.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5349.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5350.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5351. 

  5352.     # Enable minimum ISA based on selected options

  5353.     if enabled mips64; then

  5354.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5355.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5356.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5357.     else

  5358.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5359.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5360.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5361.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5362.     fi

  5363. 

  5364.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5365.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5366.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5367.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5368.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5369. 

  5370. elif enabled parisc; then

  5371. 

  5372.     if enabled gcc; then

  5373.         case $($cc -dumpversion) in

  5374.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5375.         esac

  5376.     fi

  5377. 

  5378. elif enabled ppc; then

  5379. 

  5380.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5381. 

  5382.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5383.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5384.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5385.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5386. 

  5387.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5388.     if enabled altivec; then

  5389.         check_cflags -maltivec -mabi=altivec &&

  5390.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5391.         check_cflags -faltivec

  5392. 

  5393.         # check if our compiler supports Motorola AltiVec C API

  5394.         check_cc <<EOF || disable altivec

  5395. $inc_altivec_h

  5396. int main(void) {

  5397.     vector signed int v1 = (vector signed int) { 0 };

  5398.     vector signed int v2 = (vector signed int) { 1 };

  5399.     v1 = vec_add(v1, v2);

  5400.     return 0;

  5401. }

  5402. EOF

  5403. 

  5404.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5405.     fi

  5406. 

  5407.     if enabled vsx; then

  5408.         check_cflags -mvsx &&

  5409.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5410.     fi

  5411. 

  5412.     if enabled power8; then

  5413.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5414.     fi

  5415. 

  5416. elif enabled x86; then

  5417. 

  5418.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5419.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5420. 

  5421.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5422. 

  5423.     # check whether EBP is available on x86

  5424.     # As 'i' is stored on the stack, this program will crash

  5425.     # if the base pointer is used to access it because the

  5426.     # base pointer is cleared in the inline assembly code.

  5427.     check_exec_crash <<EOF && enable ebp_available

  5428. volatile int i=0;

  5429. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5430. return i;

  5431. EOF

  5432. 

  5433.     # check whether EBX is available on x86

  5434.     check_inline_asm ebx_available '""::"b"(0)' &&

  5435.         check_inline_asm ebx_available '"":::"%ebx"'

  5436. 

  5437.     # check whether xmm clobbers are supported

  5438.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5439. 

  5440.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5441.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5442. 

  5443.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5444.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5445.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5446. 

  5447.     if ! disabled_any asm mmx yasm; then

  5448.         if check_cmd $yasmexe --version; then

  5449.             enabled x86_64 && yasm_extra="-m amd64"

  5450.             yasm_debug="-g dwarf2"

  5451.         elif check_cmd nasm -v; then

  5452.             yasmexe=nasm

  5453.             yasm_debug="-g -F dwarf"

  5454.             if enabled x86_64; then

  5455.                 case "$objformat" in

  5456.                     elf)   objformat=elf64 ;;

  5457.                     win32) objformat=win64 ;;

  5458.                 esac

  5459.             fi

  5460.         fi

  5461. 

  5462.         YASMFLAGS="-f $objformat $yasm_extra"

  5463.         enabled pic               && append YASMFLAGS "-DPIC"

  5464.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5465.         case "$objformat" in

  5466.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5467.         esac

  5468. 

  5469.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5470.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5471.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5472.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5473.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5474.         check_yasm "CPU amdnop" || disable cpunop

  5475.     fi

  5476. 

  5477.     case "$cpu" in

  5478.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5479.             disable fast_clz

  5480.         ;;

  5481.     esac

  5482. 

  5483. fi

  5484. 

  5485. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5486. 

  5487. check_ldflags -Wl,--as-needed

  5488. check_ldflags -Wl,-z,noexecstack

  5489. 

  5490. if check_func dlopen && check_func dlsym; then

  5491.     ldl=

  5492. elif check_func dlopen -ldl && check_func dlsym -ldl; then

  5493.     ldl=-ldl

  5494. fi

  5495. 

  5496. avisynth_demuxer_extralibs='$ldl'

  5497. cuda_extralibs='$ldl'

  5498. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5499. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5500. frei0r_filter_extralibs='$ldl'

  5501. frei0r_src_filter_extralibs='$ldl'

  5502. ladspa_filter_extralibs='$ldl'

  5503. nvenc_extralibs='$ldl'

  5504. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5505. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5506. 

  5507. if ! disabled network; then

  5508.     check_func getaddrinfo $network_extralibs

  5509.     check_func inet_aton $network_extralibs

  5510. 

  5511.     check_type netdb.h "struct addrinfo"

  5512.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5513.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5514.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5515.     check_type poll.h "struct pollfd"

  5516.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5517.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5518.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5519.     check_type netinet/in.h "struct sockaddr_in6"

  5520.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5521.     check_type "sys/types.h sys/socket.h" socklen_t

  5522. 

  5523.     # Prefer arpa/inet.h over winsock2

  5524.     if check_header arpa/inet.h ; then

  5525.         check_func closesocket

  5526.     elif check_header winsock2.h ; then

  5527.         check_func_headers winsock2.h closesocket -lws2 &&

  5528.             network_extralibs="-lws2" ||

  5529.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5530.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5531.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5532. 

  5533.         check_type ws2tcpip.h socklen_t

  5534.         check_type ws2tcpip.h "struct addrinfo"

  5535.         check_type ws2tcpip.h "struct group_source_req"

  5536.         check_type ws2tcpip.h "struct ip_mreq_source"

  5537.         check_type ws2tcpip.h "struct ipv6_mreq"

  5538.         check_type winsock2.h "struct pollfd"

  5539.         check_struct winsock2.h "struct sockaddr" sa_len

  5540.         check_type ws2tcpip.h "struct sockaddr_in6"

  5541.         check_type ws2tcpip.h "struct sockaddr_storage"

  5542.     else

  5543.         disable network

  5544.     fi

  5545. fi

  5546. 

  5547. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5548. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5549. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5550. check_builtin sarestart signal.h "SA_RESTART"

  5551. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5552. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5553. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5554. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5555. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5556. 

  5557. case "$custom_allocator" in

  5558.     jemalloc)

  5559.         # jemalloc by default does not use a prefix

  5560.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5561.     ;;

  5562.     tcmalloc)

  5563.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5564.         malloc_prefix=tc_

  5565.     ;;

  5566. esac

  5567. 

  5568. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5569. check_func  ${malloc_prefix}memalign            && enable memalign

  5570. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5571. 

  5572. check_func  access

  5573. check_func_headers stdlib.h arc4random

  5574. check_func_headers time.h clock_gettime ||

  5575.     { check_lib time.h clock_gettime -lrt && LIBRT="-lrt"; }

  5576. check_func  fcntl

  5577. check_func  fork

  5578. check_func  gethrtime

  5579. check_func  getopt

  5580. check_func  getrusage

  5581. check_func  gettimeofday

  5582. check_func  isatty

  5583. check_func  mach_absolute_time

  5584. check_func  mkstemp

  5585. check_func  mmap

  5586. check_func  mprotect

  5587. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5588. check_func_headers time.h nanosleep ||

  5589.     { check_lib time.h nanosleep -lrt && LIBRT="-lrt"; }

  5590. check_func  sched_getaffinity

  5591. check_func  setrlimit

  5592. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5593. check_func  strerror_r

  5594. check_func  sysconf

  5595. check_func  sysctl

  5596. check_func  usleep

  5597. 

  5598. check_func_headers conio.h kbhit

  5599. check_func_headers io.h setmode

  5600. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5601. check_func_headers stdlib.h getenv

  5602. check_func_headers sys/stat.h lstat

  5603. 

  5604. check_func_headers windows.h GetProcessAffinityMask

  5605. check_func_headers windows.h GetProcessTimes

  5606. check_func_headers windows.h GetSystemTimeAsFileTime

  5607. check_func_headers windows.h LoadLibrary

  5608. check_func_headers windows.h MapViewOfFile

  5609. check_func_headers windows.h PeekNamedPipe

  5610. check_func_headers windows.h SetConsoleTextAttribute

  5611. check_func_headers windows.h SetConsoleCtrlHandler

  5612. check_func_headers windows.h Sleep

  5613. check_func_headers windows.h VirtualAlloc

  5614. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5615. check_func_headers glob.h glob

  5616. enabled xlib &&

  5617.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5618. 

  5619. check_header AudioToolbox/AudioToolbox.h

  5620. check_header d3d11.h

  5621. check_header direct.h

  5622. check_header dirent.h

  5623. check_header dlfcn.h

  5624. check_header dxva.h

  5625. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5626. check_header io.h

  5627. check_header libcrystalhd/libcrystalhd_if.h

  5628. check_header mach/mach_time.h

  5629. check_header malloc.h

  5630. check_header net/udplite.h

  5631. check_header poll.h

  5632. check_header sys/mman.h

  5633. check_header sys/param.h

  5634. check_header sys/resource.h

  5635. check_header sys/select.h

  5636. check_header sys/time.h

  5637. check_header sys/un.h

  5638. check_header termios.h

  5639. check_header unistd.h

  5640. check_header valgrind/valgrind.h

  5641. check_header VideoDecodeAcceleration/VDADecoder.h

  5642. check_header VideoToolbox/VideoToolbox.h

  5643. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5644. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5645. check_header windows.h

  5646. check_header X11/extensions/XvMClib.h

  5647. check_header asm/types.h

  5648. 

  5649. # it seems there are versions of clang in some distros that try to use the

  5650. # gcc headers, which explodes for stdatomic

  5651. # so we also check that atomics actually work here

  5652. check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5653. 

  5654. check_lib "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5655. check_lib "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5656. check_lib "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5657. 

  5658. check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5659. 

  5660. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5661. 

  5662. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5663. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5664. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5665. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5666. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5667. 

  5668. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5669. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5670. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5671. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5672. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5673. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5674. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5675. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5676. 

  5677. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5678. 

  5679. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5680. 

  5681. if ! disabled w32threads && ! enabled pthreads; then

  5682.     check_func_headers "windows.h process.h" _beginthreadex &&

  5683.         enable w32threads || disable w32threads

  5684.     if ! enabled w32threads && enabled winrt; then

  5685.         check_func_headers "windows.h" CreateThread &&

  5686.             enable w32threads || disable w32threads

  5687.     fi

  5688. fi

  5689. 

  5690. # check for some common methods of building with pthread support

  5691. # do this before the optional library checks as some of them require pthreads

  5692. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5693.     enable pthreads

  5694.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5695.         add_cflags -pthread

  5696.         add_extralibs -pthread

  5697.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5698.         add_cflags -pthreads

  5699.         add_extralibs -pthreads

  5700.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5701.         add_cflags -ldl -pthread

  5702.         add_extralibs -ldl -pthread

  5703.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5704.         add_extralibs -lpthreadGC2

  5705.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5706.         :

  5707.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5708.         disable pthreads

  5709.     fi

  5710.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5711. fi

  5712. 

  5713. 

  5714. if enabled pthreads; then

  5715.   check_func pthread_cancel

  5716. fi

  5717. 

  5718. enabled pthreads &&

  5719.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

  5720. 

  5721. disabled  zlib || check_lib  zlib.h      zlibVersion    -lz    || disable  zlib

  5722. disabled bzlib || check_lib bzlib.h BZ2_bzlibVersion    -lbz2  || disable bzlib

  5723. disabled  lzma || check_lib  lzma.h lzma_version_number -llzma || disable lzma

  5724. 

  5725. check_lib math.h sin -lm && LIBM="-lm"

  5726. disabled crystalhd || check_lib "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5727. 

  5728. atan2f_args=2

  5729. copysign_args=2

  5730. hypot_args=2

  5731. ldexpf_args=2

  5732. powf_args=2

  5733. 

  5734. for func in $MATH_FUNCS; do

  5735.     eval check_mathfunc $func \${${func}_args:-1} $LIBM

  5736. done

  5737. 

  5738. for func in $COMPLEX_FUNCS; do

  5739.     eval check_complexfunc $func \${${func}_args:-1}

  5740. done

  5741. 

  5742. # these are off by default, so fail if requested and not available

  5743. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5744. enabled avfoundation_indev && { check_lib CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5745.                                 check_lib ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5746. enabled cuda              && check_header cuda.h # this is not a dependency

  5747. enabled cuvid             && { enabled cuda ||

  5748.                                die "ERROR: CUVID requires CUDA"; }

  5749. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5750. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5751. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5752. enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&

  5753.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5754. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5755. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5756. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5757. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&

  5758.                                check_lib "dlfcn.h" dlopen -ldl || die "ERROR: jni not found"; }

  5759. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5760. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5761. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5762. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5763. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5764. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5765.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5766.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5767. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5768. enabled libdc1394         && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new

  5769. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5770.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5771.                                  warn "using libfdk without pkg-config"; } }

  5772. flite_extralibs="-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"

  5773. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5774. enabled fontconfig        && enable libfontconfig

  5775. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5776. enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5777. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5778. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5779. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5780.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5781.                                done || die "ERROR: libgsm not found"; }

  5782. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5783. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5784. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5785. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5786. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5787. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5788. enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc

  5789. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5790. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5791. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5792.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5793.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5794.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5795. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5796. enabled libopenjpeg       && { { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5797.                                check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||

  5798.                                { check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5799.                                { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5800.                                { check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5801.                                die "ERROR: libopenjpeg not found"; }

  5802. enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create

  5803. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5804. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5805. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5806. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5807. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5808. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5809. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5810.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5811. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy

  5812. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5813. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5814. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5815. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5816. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5817. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5818.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5819.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5820. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5821. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5822. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5823. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5824. 

  5825. enabled libvpx            && {

  5826.     enabled libvpx_vp8_decoder && {

  5827.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5828.             check_lib "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5829.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5830.     }

  5831.     enabled libvpx_vp8_encoder && {

  5832.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5833.             check_lib "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5834.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5835.     }

  5836.     enabled libvpx_vp9_decoder && {

  5837.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5838.             check_lib "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5839.                 disable libvpx_vp9_decoder;

  5840.     }

  5841.     enabled libvpx_vp9_encoder && {

  5842.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5843.             check_lib "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5844.                 disable libvpx_vp9_encoder;

  5845.     }

  5846.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5847.         die "libvpx enabled but no supported decoders found"

  5848.     fi

  5849. }

  5850. 

  5851. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5852. enabled libwebp           && {

  5853.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5854.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5855. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5856.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5857.                                  warn "using libx264 without pkg-config"; } } &&

  5858.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5859.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5860.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5861.                                enable libx262; }

  5862. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5863.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5864.                                die "ERROR: libx265 version must be >= 68."; }

  5865. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs

  5866. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5867. enabled libzimg           && require_pkg_config "zimg >= 2.3.0" zimg.h zimg_get_api_version

  5868. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5869. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5870.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5871.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5872. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5873. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5874.                                { ! enabled cross_compile &&

  5875.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5876.                                  add_ldflags -L/opt/vc/lib/ &&

  5877.                                  check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5878.                                die "ERROR: mmal not found" &&

  5879.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5880. enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers

  5881. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5882.                                check_lib 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5883.                                die "ERROR: openal not found"; } &&

  5884.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5885.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5886. enabled opencl            && { check_lib OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5887.                                check_lib CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5888.                                die "ERROR: opencl not found"; } &&

  5889.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5890.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5891.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5892. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5893.                                check_lib windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5894.                                check_lib OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5895.                                check_lib ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5896.                                die "ERROR: opengl not found."

  5897.                              }

  5898. enabled omx_rpi           && { check_header OMX_Core.h ||

  5899.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  5900.                                die "ERROR: OpenMAX IL headers not found"; }

  5901. enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }

  5902. enabled openssl           && { use_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||

  5903.                                use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  5904.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5905.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5906.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5907.                                die "ERROR: openssl not found"; }

  5908. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5909. 

  5910. if enabled gcrypt; then

  5911.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5912.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  5913.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  5914.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  5915.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  5916.             die "ERROR: gcrypt not found"

  5917.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_extralibs

  5918.     else

  5919.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  5920.     fi

  5921. fi

  5922. 

  5923. disabled sdl && disable sdl2

  5924. if ! disabled sdl2; then

  5925.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  5926.     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then

  5927.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  5928.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  5929.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  5930.     else

  5931.       if "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  5932.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  5933.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  5934.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  5935.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  5936.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  5937.       fi

  5938.     fi

  5939.     if test $target_os = "mingw32"; then

  5940.         sdl2_extralibs="$sdl2_extralibs -mconsole"

  5941.     fi

  5942. fi

  5943. enabled sdl2 && enable sdl && add_cflags $sdl2_cflags && add_extralibs $sdl2_extralibs

  5944. 

  5945. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5946.     check_lib "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5947.     enable securetransport; }

  5948. 

  5949. disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  5950.                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }

  5951. 

  5952. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5953. enabled makeinfo \

  5954.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5955.     && enable makeinfo_html || disable makeinfo_html

  5956. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5957. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5958. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5959. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5960. 

  5961. check_header linux/fb.h

  5962. check_header linux/videodev.h

  5963. check_header linux/videodev2.h

  5964. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5965. 

  5966. check_header sys/videoio.h

  5967. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5968. 

  5969. check_lib "windows.h winuser.h" GetShellWindow -luser32

  5970. check_lib "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  5971. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5972. # w32api 3.12 had it defined wrong

  5973. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5974. 

  5975. check_type "dshow.h" IBaseFilter

  5976. 

  5977. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5978. { check_header dev/bktr/ioctl_meteor.h &&

  5979.   check_header dev/bktr/ioctl_bt848.h; } ||

  5980. { check_header machine/ioctl_meteor.h &&

  5981.   check_header machine/ioctl_bt848.h; } ||

  5982. { check_header dev/video/meteor/ioctl_meteor.h &&

  5983.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5984. check_header dev/ic/bt8xx.h

  5985. 

  5986. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5987.     enable_safe sys/soundcard.h

  5988. else

  5989.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5990.     #include <sys/soundcard.h>

  5991.     audio_buf_info abc;

  5992. EOF

  5993. fi

  5994. check_header soundcard.h

  5995. 

  5996. enabled_any alsa_indev alsa_outdev &&

  5997.     check_lib alsa/asoundlib.h snd_pcm_htimestamp -lasound && enable alsa

  5998. 

  5999. enabled jack_indev && check_lib jack/jack.h jack_client_open -ljack && enable jack &&

  6000.     check_func jack_port_get_latency_range -ljack

  6001. 

  6002. enabled_any sndio_indev sndio_outdev && check_lib sndio.h sio_open -lsndio && enable sndio

  6003. 

  6004. if enabled libcdio; then

  6005.     check_lib "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6006.     check_lib "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6007.     die "ERROR: No usable libcdio/cdparanoia found"

  6008. fi

  6009. 

  6010. if ! disabled libxcb; then

  6011.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  6012.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  6013.     } && enable libxcb

  6014. 

  6015. if enabled libxcb; then

  6016.     disabled libxcb_shm || {

  6017.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  6018.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  6019.         } && check_header sys/shm.h && enable libxcb_shm; }

  6020. 

  6021.     disabled libxcb_xfixes || {

  6022.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  6023.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  6024.         } && enable libxcb_xfixes; }

  6025. 

  6026.     disabled libxcb_shape || {

  6027.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  6028.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  6029.         } && enable libxcb_shape; }

  6030. 

  6031.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  6032.     add_extralibs $xcb_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs $xcb_shape_extralibs

  6033. fi

  6034. fi

  6035. 

  6036. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6037. 

  6038. enabled dxva2api_h &&

  6039.     check_cc <<EOF && enable dxva2api_cobj

  6040. #define _WIN32_WINNT 0x0600

  6041. #define COBJMACROS

  6042. #include <windows.h>

  6043. #include <d3d9.h>

  6044. #include <dxva2api.h>

  6045. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  6046. EOF

  6047. 

  6048. enabled dxva2 &&

  6049.     check_lib windows.h CoTaskMemFree -lole32 &&

  6050.     enable dxva2_lib

  6051. 

  6052. enabled vaapi &&

  6053.     check_lib va/va.h vaInitialize -lva ||

  6054.     disable vaapi

  6055. 

  6056. enabled vaapi &&

  6057.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6058.     disable vaapi

  6059. 

  6060. enabled vaapi &&

  6061.     check_lib "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&

  6062.     enable vaapi_drm

  6063. 

  6064. enabled vaapi &&

  6065.     check_lib "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11 &&

  6066.     enable vaapi_x11

  6067. 

  6068. enabled vdpau &&

  6069.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6070.     disable vdpau

  6071. 

  6072. enabled vdpau &&

  6073.     check_lib "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11 &&

  6074.     enable vdpau_x11

  6075. 

  6076. if enabled x86; then

  6077.     case $target_os in

  6078.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6079.             ;;

  6080.         *)

  6081.             disable cuda cuvid nvenc

  6082.             ;;

  6083.     esac

  6084. else

  6085.     disable cuda cuvid nvenc

  6086. fi

  6087. 

  6088. enabled nvenc &&

  6089.     check_cc -I$source_path <<EOF || disable nvenc

  6090. #include "compat/nvenc/nvEncodeAPI.h"

  6091. NV_ENCODE_API_FUNCTION_LIST flist;

  6092. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6093. int main(void) { return 0; }

  6094. EOF

  6095. 

  6096. # Funny iconv installations are not unusual, so check it after all flags have been set

  6097. disabled iconv || check_func_headers iconv.h iconv || check_lib iconv.h iconv -liconv || disable iconv

  6098. 

  6099. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6100. 

  6101. # add some useful compiler flags if supported

  6102. check_cflags -Wdeclaration-after-statement

  6103. check_cflags -Wall

  6104. check_cflags -Wdisabled-optimization

  6105. check_cflags -Wpointer-arith

  6106. check_cflags -Wredundant-decls

  6107. check_cflags -Wwrite-strings

  6108. check_cflags -Wtype-limits

  6109. check_cflags -Wundef

  6110. check_cflags -Wmissing-prototypes

  6111. check_cflags -Wno-pointer-to-int-cast

  6112. check_cflags -Wstrict-prototypes

  6113. check_cflags -Wempty-body

  6114. 

  6115. if enabled extra_warnings; then

  6116.     check_cflags -Wcast-qual

  6117.     check_cflags -Wextra

  6118.     check_cflags -Wpedantic

  6119. fi

  6120. 

  6121. check_disable_warning(){

  6122.     warning_flag=-W${1#-Wno-}

  6123.     test_cflags $warning_flag && add_cflags $1

  6124. }

  6125. 

  6126. check_disable_warning -Wno-parentheses

  6127. check_disable_warning -Wno-switch

  6128. check_disable_warning -Wno-format-zero-length

  6129. check_disable_warning -Wno-pointer-sign

  6130. check_disable_warning -Wno-unused-const-variable

  6131. 

  6132. check_disable_warning_headers(){

  6133.     warning_flag=-W${1#-Wno-}

  6134.     test_cflags $warning_flag && add_cflags_headers $1

  6135. }

  6136. 

  6137. check_disable_warning_headers -Wno-deprecated-declarations

  6138. check_disable_warning_headers -Wno-unused-variable

  6139. 

  6140. # add some linker flags

  6141. check_ldflags -Wl,--warn-common

  6142. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6143. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6144. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6145. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6146. 

  6147. # add some strip flags

  6148. # -wN '..@*' is more selective than -x, but not available everywhere.

  6149. check_stripflags -wN \'..@*\' || check_stripflags -x

  6150. 

  6151. enabled neon_clobber_test &&

  6152.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6153.                   -Wl,--wrap,avcodec_decode_audio4      \

  6154.                   -Wl,--wrap,avcodec_decode_video2      \

  6155.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6156.                   -Wl,--wrap,avcodec_encode_audio2      \

  6157.                   -Wl,--wrap,avcodec_encode_video2      \

  6158.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6159.                   -Wl,--wrap,avcodec_send_packet        \

  6160.                   -Wl,--wrap,avcodec_receive_packet     \

  6161.                   -Wl,--wrap,avcodec_send_frame         \

  6162.                   -Wl,--wrap,avcodec_receive_frame      \

  6163.                   -Wl,--wrap,swr_convert                \

  6164.                   -Wl,--wrap,avresample_convert ||

  6165.     disable neon_clobber_test

  6166. 

  6167. enabled xmm_clobber_test &&

  6168.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6169.                   -Wl,--wrap,avcodec_decode_audio4      \

  6170.                   -Wl,--wrap,avcodec_decode_video2      \

  6171.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6172.                   -Wl,--wrap,avcodec_encode_audio2      \

  6173.                   -Wl,--wrap,avcodec_encode_video2      \

  6174.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6175.                   -Wl,--wrap,avcodec_send_packet        \

  6176.                   -Wl,--wrap,avcodec_receive_packet     \

  6177.                   -Wl,--wrap,avcodec_send_frame         \

  6178.                   -Wl,--wrap,avcodec_receive_frame      \

  6179.                   -Wl,--wrap,swr_convert                \

  6180.                   -Wl,--wrap,avresample_convert         \

  6181.                   -Wl,--wrap,sws_scale ||

  6182.     disable xmm_clobber_test

  6183. 

  6184. check_ld "cc" <<EOF && enable proper_dce

  6185. extern const int array[512];

  6186. static inline int func(void) { return array[0]; }

  6187. int main(void) { return 0; }

  6188. EOF

  6189. 

  6190. if enabled proper_dce; then

  6191.     echo "X { local: *; };" > $TMPV

  6192.     if test_ldflags -Wl,${version_script},$TMPV; then

  6193.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6194.         check_cc <<EOF && enable symver_asm_label

  6195. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6196. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6197. EOF

  6198.         check_cc <<EOF && enable symver_gnu_asm

  6199. __asm__(".symver ff_foo,av_foo@VERSION");

  6200. void ff_foo(void) {}

  6201. EOF

  6202.     fi

  6203. fi

  6204. 

  6205. if [ -z "$optflags" ]; then

  6206.     if enabled small; then

  6207.         optflags=$cflags_size

  6208.     elif enabled optimizations; then

  6209.         optflags=$cflags_speed

  6210.     else

  6211.         optflags=$cflags_noopt

  6212.     fi

  6213. fi

  6214. 

  6215. check_optflags(){

  6216.     check_cflags "$@"

  6217.     enabled lto && check_ldflags "$@"

  6218. }

  6219. 

  6220. 

  6221. if enabled lto; then

  6222.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6223.     check_cflags  -flto

  6224.     check_ldflags -flto $cpuflags

  6225.     disable inline_asm_direct_symbol_refs

  6226. fi

  6227. 

  6228. check_optflags $optflags

  6229. check_optflags -fno-math-errno

  6230. check_optflags -fno-signed-zeros

  6231. 

  6232. enabled ftrapv && check_cflags -ftrapv

  6233. 

  6234. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6235. int x;

  6236. EOF

  6237. 

  6238. 

  6239. if enabled icc; then

  6240.     # Just warnings, no remarks

  6241.     check_cflags -w1

  6242.     # -wd: Disable following warnings

  6243.     # 144, 167, 556: -Wno-pointer-sign

  6244.     # 188: enumerated type mixed with another type

  6245.     # 1292: attribute "foo" ignored

  6246.     # 1419: external declaration in primary source file

  6247.     # 10006: ignoring unknown option -fno-signed-zeros

  6248.     # 10148: ignoring unknown option -Wno-parentheses

  6249.     # 10156: ignoring option '-W'; no argument required

  6250.     # 13200: No EMMS instruction before call to function

  6251.     # 13203: No EMMS instruction before return from function

  6252.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6253.     # 11030: Warning unknown option --as-needed

  6254.     # 10156: ignoring option '-export'; no argument required

  6255.     check_ldflags -wd10156,11030

  6256.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6257.     enable ebp_available

  6258.     # The test above does not test linking

  6259.     enabled lto && disable symver_asm_label

  6260.     if enabled x86_32; then

  6261.         icc_version=$($cc -dumpversion)

  6262.         test ${icc_version%%.*} -ge 11 &&

  6263.             check_cflags -falign-stack=maintain-16-byte ||

  6264.             disable aligned_stack

  6265.     fi

  6266. elif enabled ccc; then

  6267.     # disable some annoying warnings

  6268.     add_cflags -msg_disable bitnotint

  6269.     add_cflags -msg_disable mixfuncvoid

  6270.     add_cflags -msg_disable nonstandcast

  6271.     add_cflags -msg_disable unsupieee

  6272. elif enabled gcc; then

  6273.     check_optflags -fno-tree-vectorize

  6274.     check_cflags -Werror=format-security

  6275.     check_cflags -Werror=implicit-function-declaration

  6276.     check_cflags -Werror=missing-prototypes

  6277.     check_cflags -Werror=return-type

  6278.     check_cflags -Werror=vla

  6279.     check_cflags -Wformat

  6280.     check_cflags -fdiagnostics-color=auto

  6281.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6282. elif enabled llvm_gcc; then

  6283.     check_cflags -mllvm -stack-alignment=16

  6284. elif enabled clang; then

  6285.     check_cflags -mllvm -stack-alignment=16

  6286.     check_cflags -mstack-alignment=16

  6287.     check_cflags -Qunused-arguments

  6288.     check_cflags -Werror=implicit-function-declaration

  6289.     check_cflags -Werror=missing-prototypes

  6290.     check_cflags -Werror=return-type

  6291. elif enabled cparser; then

  6292.     add_cflags -Wno-missing-variable-declarations

  6293.     add_cflags -Wno-empty-statement

  6294. elif enabled armcc; then

  6295.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6296.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6297.     # 2523: use of inline assembly is deprecated

  6298.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6299.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6300.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6301.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6302.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6303.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6304. elif enabled tms470; then

  6305.     add_cflags -pds=824 -pds=837

  6306.     disable inline_asm

  6307. elif enabled pathscale; then

  6308.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6309. elif enabled_any msvc icl; then

  6310.     enabled x86_32 && disable aligned_stack

  6311.     enabled_all x86_32 debug && add_cflags -Oy-

  6312.     enabled debug && add_ldflags -debug

  6313.     enable pragma_deprecated

  6314.     if enabled icl; then

  6315.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6316.         # (correctly) on icl 13.x.

  6317.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6318.             add_cflags -Qansi-alias

  6319.         # Some inline asm is not compilable in debug

  6320.         if enabled debug; then

  6321.             disable ebp_available

  6322.             disable ebx_available

  6323.         fi

  6324.     fi

  6325.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6326.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6327.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6328.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6329.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6330.     # MSVC 2013 and newer can handle it fine.

  6331.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6332.     # happens in config.h.

  6333.     if [ $_restrict != restrict ]; then

  6334.         check_cc <<EOF || add_cflags -FIstdlib.h

  6335. __declspec($_restrict) void* foo(int);

  6336. EOF

  6337.     fi

  6338.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6339.     # Issue has been fixed in MSVC v19.00.24218.

  6340.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6341.         check_cflags -d2SSAOptimizer-

  6342.     # enable utf-8 source processing on VS2015 U2 and newer

  6343.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6344.         add_cflags -utf-8

  6345. fi

  6346. 

  6347. for pfx in "" host_; do

  6348.     varname=${pfx%_}cc_type

  6349.     eval "type=\$$varname"

  6350.     if [ $type = "msvc" ]; then

  6351.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6352. static inline int foo(int a) { return a; }

  6353. EOF

  6354.     fi

  6355. done

  6356. 

  6357. case $as_type in

  6358.     clang)

  6359.         add_asflags -Qunused-arguments

  6360.     ;;

  6361. esac

  6362. 

  6363. case $ld_type in

  6364.     clang)

  6365.         check_ldflags -Qunused-arguments

  6366.     ;;

  6367. esac

  6368. 

  6369. case $target_os in

  6370.     osf1)

  6371.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6372.     ;;

  6373. esac

  6374. 

  6375. enable frame_thread_encoder

  6376. 

  6377. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6378. 

  6379. check_deps $CONFIG_LIST       \

  6380.            $CONFIG_EXTRA      \

  6381.            $HAVE_LIST         \

  6382.            $ALL_COMPONENTS    \

  6383. 

  6384. 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"

  6385. 

  6386. 

  6387. if test $target_os = "haiku"; then

  6388.     disable memalign

  6389.     disable posix_memalign

  6390. fi

  6391. 

  6392. # add_dep lib dep

  6393. # -> enable ${lib}_deps_${dep}

  6394. # -> add $dep to ${lib}_deps only once

  6395. add_dep() {

  6396.     lib=$1

  6397.     dep=$2

  6398.     enabled "${lib}_deps_${dep}" && return 0

  6399.     enable  "${lib}_deps_${dep}"

  6400.     prepend "${lib}_deps" $dep

  6401. }

  6402. 

  6403. # merge deps lib components

  6404. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6405. merge_deps() {

  6406.     lib=$1

  6407.     shift

  6408.     for comp in $*; do

  6409.         enabled $comp || continue

  6410.         eval "dep=\"\$${comp}_deps\""

  6411.         for d in $dep; do

  6412.             add_dep $lib $d

  6413.         done

  6414.     done

  6415. }

  6416. 

  6417. merge_deps libavfilter $FILTER_LIST

  6418. 

  6419. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6420. 

  6421. for thread in $THREADS_LIST; do

  6422.     if enabled $thread; then

  6423.         test -n "$thread_type" &&

  6424.             die "ERROR: Only one thread type must be selected." ||

  6425.             thread_type="$thread"

  6426.     fi

  6427. done

  6428. 

  6429. if disabled stdatomic_h; then

  6430.     if enabled atomics_gcc; then

  6431.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6432.     elif enabled atomics_win32; then

  6433.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6434.     elif enabled atomics_suncc; then

  6435.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6436.     elif enabled pthreads; then

  6437.         add_compat atomics/pthread/stdatomic.o

  6438.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6439.     else

  6440.         enabled threads && die "Threading is enabled, but no atomics are available"

  6441.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6442.     fi

  6443. fi

  6444. 

  6445. # Check if requested libraries were found.

  6446. for lib in $AUTODETECT_LIBS; do

  6447.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6448. done

  6449. 

  6450. enabled zlib && add_cppflags -DZLIB_CONST

  6451. 

  6452. # conditional library dependencies, in linking order

  6453. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6454. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6455. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6456. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6457. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6458. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6459. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6460. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6461. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6462. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6463. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6464. enabled pan_filter          && prepend avfilter_deps "swresample"

  6465. enabled pp_filter           && prepend avfilter_deps "postproc"

  6466. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6467. enabled resample_filter && prepend avfilter_deps "avresample"

  6468. enabled sab_filter          && prepend avfilter_deps "swscale"

  6469. enabled scale_filter    && prepend avfilter_deps "swscale"

  6470. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6471. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6472. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6473. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6474. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6475. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6476. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6477. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6478. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6479. 

  6480. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6481. 

  6482. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6483. 

  6484. expand_deps(){

  6485.     lib_deps=${1}_deps

  6486.     eval "deps=\$$lib_deps"

  6487.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6488.     unique $lib_deps

  6489. }

  6490. 

  6491. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6492. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6493. 

  6494. map 'expand_deps $v' $LIBRARY_LIST

  6495. 

  6496. license="LGPL version 2.1 or later"

  6497. if enabled nonfree; then

  6498.     license="nonfree and unredistributable"

  6499. elif enabled gplv3; then

  6500.     license="GPL version 3 or later"

  6501. elif enabled lgplv3; then

  6502.     license="LGPL version 3 or later"

  6503. elif enabled gpl; then

  6504.     license="GPL version 2 or later"

  6505. fi

  6506. 

  6507. if test "$quiet" != "yes"; then

  6508. 

  6509. echo "install prefix            $prefix"

  6510. echo "source path               $source_path"

  6511. echo "C compiler                $cc"

  6512. echo "C library                 $libc_type"

  6513. if test "$host_cc" != "$cc"; then

  6514.     echo "host C compiler           $host_cc"

  6515.     echo "host C library            $host_libc_type"

  6516. fi

  6517. echo "ARCH                      $arch ($cpu)"

  6518. if test "$build_suffix" != ""; then

  6519.     echo "build suffix              $build_suffix"

  6520. fi

  6521. if test "$progs_suffix" != ""; then

  6522.     echo "progs suffix              $progs_suffix"

  6523. fi

  6524. if test "$extra_version" != ""; then

  6525.     echo "version string suffix     $extra_version"

  6526. fi

  6527. echo "big-endian                ${bigendian-no}"

  6528. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6529. if enabled x86; then

  6530.     echo "${yasmexe}                      ${yasm-no}"

  6531.     echo "MMX enabled               ${mmx-no}"

  6532.     echo "MMXEXT enabled            ${mmxext-no}"

  6533.     echo "3DNow! enabled            ${amd3dnow-no}"

  6534.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6535.     echo "SSE enabled               ${sse-no}"

  6536.     echo "SSSE3 enabled             ${ssse3-no}"

  6537.     echo "AESNI enabled             ${aesni-no}"

  6538.     echo "AVX enabled               ${avx-no}"

  6539.     echo "XOP enabled               ${xop-no}"

  6540.     echo "FMA3 enabled              ${fma3-no}"

  6541.     echo "FMA4 enabled              ${fma4-no}"

  6542.     echo "i686 features enabled     ${i686-no}"

  6543.     echo "CMOV is fast              ${fast_cmov-no}"

  6544.     echo "EBX available             ${ebx_available-no}"

  6545.     echo "EBP available             ${ebp_available-no}"

  6546. fi

  6547. if enabled aarch64; then

  6548.     echo "NEON enabled              ${neon-no}"

  6549.     echo "VFP enabled               ${vfp-no}"

  6550. fi

  6551. if enabled arm; then

  6552.     echo "ARMv5TE enabled           ${armv5te-no}"

  6553.     echo "ARMv6 enabled             ${armv6-no}"

  6554.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6555.     echo "VFP enabled               ${vfp-no}"

  6556.     echo "NEON enabled              ${neon-no}"

  6557.     echo "THUMB enabled             ${thumb-no}"

  6558. fi

  6559. if enabled mips; then

  6560.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6561.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6562.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6563.     echo "MIPS MSA enabled          ${msa-no}"

  6564.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6565. fi

  6566. if enabled ppc; then

  6567.     echo "AltiVec enabled           ${altivec-no}"

  6568.     echo "VSX enabled               ${vsx-no}"

  6569.     echo "POWER8 enabled            ${power8-no}"

  6570.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6571.     echo "dcbzl available           ${dcbzl-no}"

  6572. fi

  6573. echo "debug symbols             ${debug-no}"

  6574. echo "strip symbols             ${stripping-no}"

  6575. echo "optimize for size         ${small-no}"

  6576. echo "optimizations             ${optimizations-no}"

  6577. echo "static                    ${static-no}"

  6578. echo "shared                    ${shared-no}"

  6579. echo "postprocessing support    ${postproc-no}"

  6580. echo "network support           ${network-no}"

  6581. echo "threading support         ${thread_type-no}"

  6582. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6583. echo "texi2html enabled         ${texi2html-no}"

  6584. echo "perl enabled              ${perl-no}"

  6585. echo "pod2man enabled           ${pod2man-no}"

  6586. echo "makeinfo enabled          ${makeinfo-no}"

  6587. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6588. test -n "$random_seed" &&

  6589.     echo "random seed               ${random_seed}"

  6590. echo

  6591. 

  6592. echo "External libraries:"

  6593. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6594. echo

  6595. 

  6596. echo "External libraries providing hardware acceleration:"

  6597. print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns

  6598. echo

  6599. 

  6600. echo "Libraries:"

  6601. print_enabled '' $LIBRARY_LIST | print_in_columns

  6602. echo

  6603. 

  6604. echo "Programs:"

  6605. print_enabled '' $PROGRAM_LIST | print_in_columns

  6606. echo

  6607. 

  6608. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6609.     echo "Enabled ${type}s:"

  6610.     eval list=\$$(toupper $type)_LIST

  6611.     print_enabled '_*' $list | print_in_columns

  6612.     echo

  6613. done

  6614. 

  6615. echo "License: $license"

  6616. 

  6617. echo "Creating configuration files ..."

  6618. 

  6619. fi # test "$quiet" != "yes"

  6620. 

  6621. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6622. 

  6623. enabled stripping || strip="echo skipping strip"

  6624. 

  6625. config_files="$TMPH config.mak doc/config.texi"

  6626. 

  6627. cat > config.mak <<EOF

  6628. # Automatically generated by configure - do not modify!

  6629. ifndef FFMPEG_CONFIG_MAK

  6630. FFMPEG_CONFIG_MAK=1

  6631. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6632. prefix=$prefix

  6633. LIBDIR=\$(DESTDIR)$libdir

  6634. SHLIBDIR=\$(DESTDIR)$shlibdir

  6635. INCDIR=\$(DESTDIR)$incdir

  6636. BINDIR=\$(DESTDIR)$bindir

  6637. DATADIR=\$(DESTDIR)$datadir

  6638. DOCDIR=\$(DESTDIR)$docdir

  6639. MANDIR=\$(DESTDIR)$mandir

  6640. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6641. INSTALL_NAME_DIR=$install_name_dir

  6642. SRC_PATH=$source_path

  6643. SRC_LINK=$source_link

  6644. ifndef MAIN_MAKEFILE

  6645. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6646. endif

  6647. CC_IDENT=$cc_ident

  6648. ARCH=$arch

  6649. INTRINSICS=$intrinsics

  6650. CC=$cc

  6651. CXX=$cxx

  6652. AS=$as

  6653. OBJCC=$objcc

  6654. LD=$ld

  6655. DEPCC=$dep_cc

  6656. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6657. DEPAS=$as

  6658. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6659. YASM=$yasmexe

  6660. DEPYASM=$yasmexe

  6661. AR=$ar

  6662. ARFLAGS=$arflags

  6663. AR_O=$ar_o

  6664. RANLIB=$ranlib

  6665. STRIP=$strip

  6666. CP=cp -p

  6667. LN_S=$ln_s

  6668. CPPFLAGS=$CPPFLAGS

  6669. CFLAGS=$CFLAGS

  6670. CXXFLAGS=$CXXFLAGS

  6671. OBJCFLAGS=$OBJCFLAGS

  6672. ASFLAGS=$ASFLAGS

  6673. AS_C=$AS_C

  6674. AS_O=$AS_O

  6675. OBJCC_C=$OBJCC_C

  6676. OBJCC_E=$OBJCC_E

  6677. OBJCC_O=$OBJCC_O

  6678. CC_C=$CC_C

  6679. CC_E=$CC_E

  6680. CC_O=$CC_O

  6681. CXX_C=$CXX_C

  6682. CXX_O=$CXX_O

  6683. LD_O=$LD_O

  6684. LD_LIB=$LD_LIB

  6685. LD_PATH=$LD_PATH

  6686. DLLTOOL=$dlltool

  6687. WINDRES=$windres

  6688. DEPWINDRES=$dep_cc

  6689. DOXYGEN=$doxygen

  6690. LDFLAGS=$LDFLAGS

  6691. LDEXEFLAGS=$LDEXEFLAGS

  6692. LDLIBFLAGS=$LDLIBFLAGS

  6693. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6694. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6695. YASMFLAGS=$YASMFLAGS

  6696. BUILDSUF=$build_suffix

  6697. PROGSSUF=$progs_suffix

  6698. FULLNAME=$FULLNAME

  6699. LIBPREF=$LIBPREF

  6700. LIBSUF=$LIBSUF

  6701. LIBNAME=$LIBNAME

  6702. SLIBPREF=$SLIBPREF

  6703. SLIBSUF=$SLIBSUF

  6704. EXESUF=$EXESUF

  6705. EXTRA_VERSION=$extra_version

  6706. CCDEP=$CCDEP

  6707. CXXDEP=$CXXDEP

  6708. CCDEP_FLAGS=$CCDEP_FLAGS

  6709. ASDEP=$ASDEP

  6710. ASDEP_FLAGS=$ASDEP_FLAGS

  6711. CC_DEPFLAGS=$CC_DEPFLAGS

  6712. AS_DEPFLAGS=$AS_DEPFLAGS

  6713. HOSTCC=$host_cc

  6714. HOSTLD=$host_ld

  6715. HOSTCFLAGS=$host_cflags

  6716. HOSTCPPFLAGS=$host_cppflags

  6717. HOSTEXESUF=$HOSTEXESUF

  6718. HOSTLDFLAGS=$host_ldflags

  6719. HOSTEXTRALIBS=$host_extralibs

  6720. DEPHOSTCC=$host_cc

  6721. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6722. HOSTCCDEP=$HOSTCCDEP

  6723. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6724. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6725. HOSTCC_C=$HOSTCC_C

  6726. HOSTCC_O=$HOSTCC_O

  6727. HOSTLD_O=$HOSTLD_O

  6728. TARGET_EXEC=$target_exec $target_exec_args

  6729. TARGET_PATH=$target_path

  6730. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6731. CFLAGS-ffplay=${sdl2_cflags}

  6732. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6733. ZLIB=$($ldflags_filter -lz)

  6734. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6735. EXTRALIBS=$extralibs

  6736. COMPAT_OBJS=$compat_objs

  6737. INSTALL=$install

  6738. LIBTARGET=${LIBTARGET}

  6739. SLIBNAME=${SLIBNAME}

  6740. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6741. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6742. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6743. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6744. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6745. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6746. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6747. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6748. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6749. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6750. NOREDZONE_FLAGS=$noredzone_flags

  6751. LIBFUZZER_PATH=$libfuzzer_path

  6752. EOF

  6753. 

  6754. get_version(){

  6755.     lcname=lib${1}

  6756.     name=$(toupper $lcname)

  6757.     file=$source_path/$lcname/version.h

  6758.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6759.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6760.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6761.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6762.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6763.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6764. }

  6765. 

  6766. map 'get_version $v' $LIBRARY_LIST

  6767. 

  6768. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6769. 

  6770. print_program_extralibs(){

  6771.     eval "program_extralibs=\$${1}_extralibs"

  6772.     eval echo "EXTRALIBS-${1}=${program_extralibs}" >> config.mak

  6773. }

  6774. 

  6775. map 'print_program_extralibs $v' $PROGRAM_LIST

  6776. 

  6777. cat > $TMPH <<EOF

  6778. /* Automatically generated by configure - do not modify! */

  6779. #ifndef FFMPEG_CONFIG_H

  6780. #define FFMPEG_CONFIG_H

  6781. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6782. #define FFMPEG_LICENSE "$(c_escape $license)"

  6783. #define CONFIG_THIS_YEAR 2017

  6784. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6785. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6786. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6787. #define av_restrict $_restrict

  6788. #define EXTERN_PREFIX "${extern_prefix}"

  6789. #define EXTERN_ASM ${extern_prefix}

  6790. #define BUILDSUF "$build_suffix"

  6791. #define SLIBSUF "$SLIBSUF"

  6792. #define HAVE_MMX2 HAVE_MMXEXT

  6793. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6794. EOF

  6795. 

  6796. test -n "$assert_level" &&

  6797.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6798. 

  6799. test -n "$malloc_prefix" &&

  6800.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6801. 

  6802. if enabled yasm; then

  6803.     append config_files $TMPASM

  6804.     printf '' >$TMPASM

  6805. fi

  6806. 

  6807. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6808. 

  6809. 

  6810. mkdir -p doc

  6811. mkdir -p tests

  6812. mkdir -p tests/api

  6813. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6814. 

  6815. print_config ARCH_   "$config_files" $ARCH_LIST

  6816. print_config HAVE_   "$config_files" $HAVE_LIST

  6817. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6818.                                      $CONFIG_EXTRA      \

  6819.                                      $ALL_COMPONENTS    \

  6820. 

  6821. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6822. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6823. 

  6824. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6825. cp_if_changed $TMPH config.h

  6826. touch .config

  6827. 

  6828. enabled yasm && cp_if_changed $TMPASM config.asm

  6829. 

  6830. cat > $TMPH <<EOF

  6831. /* Generated by ffconf */

  6832. #ifndef AVUTIL_AVCONFIG_H

  6833. #define AVUTIL_AVCONFIG_H

  6834. EOF

  6835. 

  6836. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6837. 

  6838. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6839. 

  6840. cp_if_changed $TMPH libavutil/avconfig.h

  6841. 

  6842. # generate the lists of enabled components

  6843. print_enabled_components(){

  6844.     file=$1

  6845.     struct_name=$2

  6846.     name=$3

  6847.     shift 3

  6848.     echo "static const $struct_name *$name[] = {" > $TMPH

  6849.     for c in $*; do

  6850.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  6851.     done

  6852.     echo "    NULL };" >> $TMPH

  6853.     cp_if_changed $TMPH $file

  6854. }

  6855. 

  6856. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  6857. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  6858. 

  6859. if test -n "$WARNINGS"; then

  6860.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6861.     enabled fatal_warnings && exit 1

  6862. fi

  6863. 

  6864. # build pkg-config files

  6865. 

  6866. lib_version(){

  6867.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6868. }

  6869. 

  6870. pkgconfig_generate(){

  6871.     name=$1

  6872.     shortname=${name#lib}${build_suffix}

  6873.     comment=$2

  6874.     version=$3

  6875.     libs=$4

  6876.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6877.     requires=${requires%, }

  6878.     enabled ${name#lib} || return 0

  6879.     mkdir -p $name

  6880.     cat <<EOF > $name/$name${build_suffix}.pc

  6881. prefix=$prefix

  6882. exec_prefix=\${prefix}

  6883. libdir=$libdir

  6884. includedir=$incdir

  6885. 

  6886. Name: $name

  6887. Description: $comment

  6888. Version: $version

  6889. Requires: $(enabled shared || echo $requires)

  6890. Requires.private: $(enabled shared && echo $requires)

  6891. Conflicts:

  6892. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6893. Libs.private: $(enabled shared && echo $libs)

  6894. Cflags: -I\${includedir}

  6895. EOF

  6896. 

  6897. mkdir -p doc/examples/pc-uninstalled

  6898. includedir=${source_path}

  6899. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6900.     cat <<EOF > doc/examples/pc-uninstalled/${name}-uninstalled.pc

  6901. prefix=

  6902. exec_prefix=

  6903. libdir=\${pcfiledir}/../../../$name

  6904. includedir=${includedir}

  6905. 

  6906. Name: $name

  6907. Description: $comment

  6908. Version: $version

  6909. Requires: $requires

  6910. Conflicts:

  6911. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6912. Cflags: -I\${includedir}

  6913. EOF

  6914. }

  6915. 

  6916. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6917. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6918. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6919. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6920. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6921. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6922. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6923. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6924. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"