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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --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 [ffbuild/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. 

  113. Program options:

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

  115.   --disable-ffmpeg         disable ffmpeg build

  116.   --disable-ffplay         disable ffplay build

  117.   --disable-ffprobe        disable ffprobe build

  118.   --disable-ffserver       disable ffserver build

  119. 

  120. Documentation options:

  121.   --disable-doc            do not build documentation

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

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

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

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

  126. 

  127. Component options:

  128.   --disable-avdevice       disable libavdevice build

  129.   --disable-avcodec        disable libavcodec build

  130.   --disable-avformat       disable libavformat build

  131.   --disable-swresample     disable libswresample build

  132.   --disable-swscale        disable libswscale build

  133.   --disable-postproc       disable libpostproc build

  134.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  140.   --disable-dct            disable DCT code

  141.   --disable-dwt            disable DWT code

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

  143.   --disable-lsp            disable LSP code

  144.   --disable-lzo            disable LZO decoder code

  145.   --disable-mdct           disable MDCT code

  146.   --disable-rdft           disable RDFT code

  147.   --disable-fft            disable FFT code

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

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

  150. 

  151. Individual component options:

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

  153.   --disable-encoder=NAME   disable encoder NAME

  154.   --enable-encoder=NAME    enable encoder NAME

  155.   --disable-encoders       disable all encoders

  156.   --disable-decoder=NAME   disable decoder NAME

  157.   --enable-decoder=NAME    enable decoder NAME

  158.   --disable-decoders       disable all decoders

  159.   --disable-hwaccel=NAME   disable hwaccel NAME

  160.   --enable-hwaccel=NAME    enable hwaccel NAME

  161.   --disable-hwaccels       disable all hwaccels

  162.   --disable-muxer=NAME     disable muxer NAME

  163.   --enable-muxer=NAME      enable muxer NAME

  164.   --disable-muxers         disable all muxers

  165.   --disable-demuxer=NAME   disable demuxer NAME

  166.   --enable-demuxer=NAME    enable demuxer NAME

  167.   --disable-demuxers       disable all demuxers

  168.   --enable-parser=NAME     enable parser NAME

  169.   --disable-parser=NAME    disable parser NAME

  170.   --disable-parsers        disable all parsers

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

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

  173.   --disable-bsfs           disable all bitstream filters

  174.   --enable-protocol=NAME   enable protocol NAME

  175.   --disable-protocol=NAME  disable protocol NAME

  176.   --disable-protocols      disable all protocols

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

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

  179.   --disable-indevs         disable input devices

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

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

  182.   --disable-outdevs        disable output devices

  183.   --disable-devices        disable all devices

  184.   --enable-filter=NAME     enable filter NAME

  185.   --disable-filter=NAME    disable filter NAME

  186.   --disable-filters        disable all filters

  187. 

  188. External library support:

  189. 

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

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

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

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

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

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

  196. 

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

  198.   libraries must be explicitly enabled.

  199. 

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

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

  202. 

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

  204.   --disable-bzlib          disable bzlib [autodetect]

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

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

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

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

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

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

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

  212.                            if openssl is not used [no]

  213.   --disable-iconv          disable iconv [autodetect]

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

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

  216.   --enable-libass          enable libass subtitles rendering,

  217.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  224.                            and libraw1394 [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  245.   --enable-librsvg         enable SVG rasterization via librsvg [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  261.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  277.   --disable-lzma           disable lzma [autodetect]

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

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

  280.   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]

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

  282.   --enable-opencl          enable OpenCL code

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

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

  285.                            if gnutls is not used [no]

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

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

  288.   --disable-sdl2           disable sdl2 [autodetect]

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

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

  291.   --disable-xlib           disable xlib [autodetect]

  292.   --disable-zlib           disable zlib [autodetect]

  293. 

  294.   The following libraries provide various hardware acceleration features:

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

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

  297.   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

  311. 

  312. Toolchain options:

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

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

  315.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  333.   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]

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

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

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

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

  338.   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  360.   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]

  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-x86asm         disable use of standalone x86 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.   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix

  444.                            in the name) of tests whose result is ignored

  445. 

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

  447. EOF

  448.   exit 0

  449. }

  450. 

  451. quotes='""'

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

  453.     ncolors=$(tput colors)

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

  455.         bold_color=$(tput bold)

  456.         warn_color=$(tput setaf 3)

  457.         error_color=$(tput setaf 1)

  458.         reset_color=$(tput sgr0)

  459.     fi

  460.     # 72 used instead of 80 since that's the default of pr

  461.     ncols=$(tput cols)

  462. fi

  463. : ${ncols:=72}

  464. 

  465. log(){

  466.     echo "$@" >> $logfile

  467. }

  468. 

  469. log_file(){

  470.     log BEGIN $1

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

  472.     log END $1

  473. }

  474. 

  475. warn(){

  476.     log "WARNING: $*"

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

  478. }

  479. 

  480. die(){

  481.     log "$@"

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

  483.     cat <<EOF

  484. 

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

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

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

  488. EOF

  489.     if disabled logging; then

  490.         cat <<EOF

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

  492. include the log this produces with your report.

  493. EOF

  494.     else

  495.         cat <<EOF

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

  497. solve the problem.

  498. EOF

  499.     fi

  500.     exit 1

  501. }

  502. 

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

  504. toupper(){

  505.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  506. }

  507. 

  508. tolower(){

  509.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  510. }

  511. 

  512. c_escape(){

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

  514. }

  515. 

  516. sh_quote(){

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

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

  519.     echo "$v"

  520. }

  521. 

  522. cleanws(){

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

  524. }

  525. 

  526. filter(){

  527.     pat=$1

  528.     shift

  529.     for v; do

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

  531.     done

  532. }

  533. 

  534. filter_out(){

  535.     pat=$1

  536.     shift

  537.     for v; do

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

  539.     done

  540. }

  541. 

  542. map(){

  543.     m=$1

  544.     shift

  545.     for v; do eval $m; done

  546. }

  547. 

  548. add_suffix(){

  549.     suffix=$1

  550.     shift

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

  552. }

  553. 

  554. set_all(){

  555.     value=$1

  556.     shift

  557.     for var in $*; do

  558.         eval $var=$value

  559.     done

  560. }

  561. 

  562. set_weak(){

  563.     value=$1

  564.     shift

  565.     for var; do

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

  567.     done

  568. }

  569. 

  570. sanitize_var_name(){

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

  572. }

  573. 

  574. set_safe(){

  575.     var=$1

  576.     shift

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

  578. }

  579. 

  580. get_safe(){

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

  582. }

  583. 

  584. pushvar(){

  585.     for pvar in $*; do

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

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

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

  589.     done

  590. }

  591. 

  592. popvar(){

  593.     for pvar in $*; do

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

  595.         test $level = 0 && continue

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

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

  598.         eval ${pvar}_level=$level

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

  600.     done

  601. }

  602. 

  603. request(){

  604.     for var in $*; do

  605.         eval ${var}_requested=yes

  606.         eval $var=

  607.     done

  608. }

  609. 

  610. enable(){

  611.     set_all yes $*

  612. }

  613. 

  614. disable(){

  615.     set_all no $*

  616. }

  617. 

  618. enable_weak(){

  619.     set_weak yes $*

  620. }

  621. 

  622. disable_weak(){

  623.     set_weak no $*

  624. }

  625. 

  626. enable_safe(){

  627.     for var; do

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

  629.     done

  630. }

  631. 

  632. disable_safe(){

  633.     for var; do

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

  635.     done

  636. }

  637. 

  638. do_enable_deep(){

  639.     for var; do

  640.         enabled $var && continue

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

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

  643.         pushvar var sgs

  644.         enable_deep $sel

  645.         popvar sgs

  646.         enable_deep_weak $sgs

  647.         popvar var

  648.     done

  649. }

  650. 

  651. enable_deep(){

  652.     do_enable_deep $*

  653.     enable $*

  654. }

  655. 

  656. enable_deep_weak(){

  657.     for var; do

  658.         disabled $var && continue

  659.         pushvar var

  660.         do_enable_deep $var

  661.         popvar var

  662.         enable_weak $var

  663.     done

  664. }

  665. 

  666. requested(){

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

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

  669. }

  670. 

  671. enabled(){

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

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

  674. }

  675. 

  676. disabled(){

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

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

  679. }

  680. 

  681. enabled_all(){

  682.     for opt; do

  683.         enabled $opt || return 1

  684.     done

  685. }

  686. 

  687. disabled_all(){

  688.     for opt; do

  689.         disabled $opt || return 1

  690.     done

  691. }

  692. 

  693. enabled_any(){

  694.     for opt; do

  695.         enabled $opt && return 0

  696.     done

  697. }

  698. 

  699. disabled_any(){

  700.     for opt; do

  701.         disabled $opt && return 0

  702.     done

  703.     return 1

  704. }

  705. 

  706. set_default(){

  707.     for opt; do

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

  709.     done

  710. }

  711. 

  712. is_in(){

  713.     value=$1

  714.     shift

  715.     for var in $*; do

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

  717.     done

  718.     return 1

  719. }

  720. 

  721. do_check_deps(){

  722.     for cfg; do

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

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

  725.         disabled ${cfg}_checking && continue

  726.         enable ${cfg}_checking

  727.         append allopts $cfg

  728. 

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

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

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

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

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

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

  735. 

  736.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  738.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  739. 

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

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

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

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

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

  745. 

  746.         if enabled $cfg; then

  747.             enable_deep $dep_sel

  748.             enable_deep_weak $dep_sgs

  749.         fi

  750. 

  751.         disable ${cfg}_checking

  752.     done

  753. }

  754. 

  755. check_deps(){

  756.     unset allopts

  757. 

  758.     do_check_deps "$@"

  759. 

  760.     for cfg in $allopts; do

  761.         enabled $cfg || continue

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

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

  764.     done

  765. }

  766. 

  767. print_config(){

  768.     pfx=$1

  769.     files=$2

  770.     shift 2

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

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

  773.         {

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

  775.             v = \$2;

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

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

  778.             for (f in files) {

  779.                 file = files[f];

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

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

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

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

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

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

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

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

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

  789.                     yesno = \$2;

  790.                     c2 = tolower(c);

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

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

  793.                 }

  794.             }

  795.         }"

  796. }

  797. 

  798. print_enabled(){

  799.     suf=$1

  800.     shift

  801.     for v; do

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

  803.     done

  804. }

  805. 

  806. append(){

  807.     var=$1

  808.     shift

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

  810. }

  811. 

  812. prepend(){

  813.     var=$1

  814.     shift

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

  816. }

  817. 

  818. unique(){

  819.     var=$1

  820.     uniq_list=""

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

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

  823.     done

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

  825. }

  826. 

  827. add_cppflags(){

  828.     append CPPFLAGS "$@"

  829. }

  830. 

  831. add_cflags(){

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

  833. }

  834. 

  835. add_cflags_headers(){

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

  837. }

  838. 

  839. add_cxxflags(){

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

  841. }

  842. 

  843. add_asflags(){

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

  845. }

  846. 

  847. add_objcflags(){

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

  849. }

  850. 

  851. add_ldflags(){

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

  853. }

  854. 

  855. add_ldexeflags(){

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

  857. }

  858. 

  859. add_ldlibflags(){

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

  861. }

  862. 

  863. add_stripflags(){

  864.     append ASMSTRIPFLAGS "$@"

  865. }

  866. 

  867. add_extralibs(){

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

  869. }

  870. 

  871. add_host_cppflags(){

  872.     append host_cppflags "$@"

  873. }

  874. 

  875. add_host_cflags(){

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

  877. }

  878. 

  879. add_host_ldflags(){

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

  881. }

  882. 

  883. add_compat(){

  884.     append compat_objs $1

  885.     shift

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

  887. }

  888. 

  889. check_cmd(){

  890.     log "$@"

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

  892. }

  893. 

  894. check_stat(){

  895.     log check_stat "$@"

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

  897. }

  898. 

  899. cc_o(){

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

  901. }

  902. 

  903. cc_e(){

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

  905. }

  906. 

  907. check_cc(){

  908.     log check_cc "$@"

  909.     cat > $TMPC

  910.     log_file $TMPC

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

  912. }

  913. 

  914. check_cxx(){

  915.     log check_cxx "$@"

  916.     cat > $TMPCPP

  917.     log_file $TMPCPP

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

  919. }

  920. 

  921. check_objcc(){

  922.     log check_objcc "$@"

  923.     cat > $TMPM

  924.     log_file $TMPM

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

  926. }

  927. 

  928. check_cpp(){

  929.     log check_cpp "$@"

  930.     cat > $TMPC

  931.     log_file $TMPC

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

  933. }

  934. 

  935. as_o(){

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

  937. }

  938. 

  939. check_as(){

  940.     log check_as "$@"

  941.     cat > $TMPS

  942.     log_file $TMPS

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

  944. }

  945. 

  946. check_inline_asm(){

  947.     log check_inline_asm "$@"

  948.     name="$1"

  949.     code="$2"

  950.     shift 2

  951.     disable $name

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

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

  954. EOF

  955. }

  956. 

  957. check_inline_asm_flags(){

  958.     log check_inline_asm_flags "$@"

  959.     name="$1"

  960.     code="$2"

  961.     flags=''

  962.     shift 2

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

  964.       append flags $1

  965.       shift

  966.     done;

  967.     disable $name

  968.     cat > $TMPC <<EOF

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

  970. EOF

  971.     log_file $TMPC

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

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

  974. }

  975. 

  976. check_insn(){

  977.     log check_insn "$@"

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

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

  980. }

  981. 

  982. check_x86asm(){

  983.     log check_x86asm "$@"

  984.     echo "$1" > $TMPS

  985.     log_file $TMPS

  986.     shift 1

  987.     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS

  988. }

  989. 

  990. ld_o(){

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

  992. }

  993. 

  994. check_ld(){

  995.     log check_ld "$@"

  996.     type=$1

  997.     shift 1

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

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

  1000.     check_$type $($cflags_filter $flags) || return

  1001.     flags=$($ldflags_filter $flags)

  1002.     libs=$($ldflags_filter $libs)

  1003.     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs

  1004. }

  1005. 

  1006. print_include(){

  1007.     hdr=$1

  1008.     test "${hdr%.h}" = "${hdr}" &&

  1009.         echo "#include $hdr"    ||

  1010.         echo "#include <$hdr>"

  1011. }

  1012. 

  1013. check_code(){

  1014.     log check_code "$@"

  1015.     check=$1

  1016.     headers=$2

  1017.     code=$3

  1018.     shift 3

  1019.     {

  1020.         for hdr in $headers; do

  1021.             print_include $hdr

  1022.         done

  1023.         echo "int main(void) { $code; return 0; }"

  1024.     } | check_$check "$@"

  1025. }

  1026. 

  1027. check_cppflags(){

  1028.     log check_cppflags "$@"

  1029.     check_cpp "$@" <<EOF && append CPPFLAGS "$@"

  1030. int x;

  1031. EOF

  1032. }

  1033. 

  1034. test_cflags(){

  1035.     log test_cflags "$@"

  1036.     set -- $($cflags_filter "$@")

  1037.     check_cc "$@" <<EOF

  1038. int x;

  1039. EOF

  1040. }

  1041. 

  1042. check_cflags(){

  1043.     log check_cflags "$@"

  1044.     test_cflags "$@" && add_cflags "$@"

  1045. }

  1046. 

  1047. check_cxxflags(){

  1048.     log check_cxxflags "$@"

  1049.     set -- $($cflags_filter "$@")

  1050.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1051. int x;

  1052. EOF

  1053. }

  1054. 

  1055. test_objcflags(){

  1056.     log test_objcflags "$@"

  1057.     set -- $($objcflags_filter "$@")

  1058.     check_objcc "$@" <<EOF

  1059. int x;

  1060. EOF

  1061. }

  1062. 

  1063. check_objcflags(){

  1064.     log check_objcflags "$@"

  1065.     test_objcflags "$@" && add_objcflags "$@"

  1066. }

  1067. 

  1068. test_ldflags(){

  1069.     log test_ldflags "$@"

  1070.     check_ld "cc" "$@" <<EOF

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

  1072. EOF

  1073. }

  1074. 

  1075. check_ldflags(){

  1076.     log check_ldflags "$@"

  1077.     test_ldflags "$@" && add_ldflags "$@"

  1078. }

  1079. 

  1080. test_stripflags(){

  1081.     log test_stripflags "$@"

  1082.     # call check_cc to get a fresh TMPO

  1083.     check_cc <<EOF

  1084. int main(void) { return 0; }

  1085. EOF

  1086.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1087. }

  1088. 

  1089. check_stripflags(){

  1090.     log check_stripflags "$@"

  1091.     test_stripflags "$@" && add_stripflags "$@"

  1092. }

  1093. 

  1094. check_header(){

  1095.     log check_header "$@"

  1096.     header=$1

  1097.     shift

  1098.     disable_safe $header

  1099.     check_cpp "$@" <<EOF && enable_safe $header

  1100. #include <$header>

  1101. int x;

  1102. EOF

  1103. }

  1104. 

  1105. check_header_objcc(){

  1106.     log check_header_objcc "$@"

  1107.     rm -f -- "$TMPO"

  1108.     header=$1

  1109.     shift

  1110.     disable_safe $header

  1111.     {

  1112.        echo "#include <$header>"

  1113.        echo "int main(void) { return 0; }"

  1114.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1115. }

  1116. 

  1117. check_func(){

  1118.     log check_func "$@"

  1119.     func=$1

  1120.     shift

  1121.     disable $func

  1122.     check_ld "cc" "$@" <<EOF && enable $func

  1123. extern int $func();

  1124. int main(void){ $func(); }

  1125. EOF

  1126. }

  1127. 

  1128. check_complexfunc(){

  1129.     log check_complexfunc "$@"

  1130.     func=$1

  1131.     narg=$2

  1132.     shift 2

  1133.     test $narg = 2 && args="f, g" || args="f * I"

  1134.     disable $func

  1135.     check_ld "cc" "$@" <<EOF && enable $func

  1136. #include <complex.h>

  1137. #include <math.h>

  1138. float foo(complex float f, complex float g) { return $func($args); }

  1139. int main(void){ return (int) foo; }

  1140. EOF

  1141. }

  1142. 

  1143. check_mathfunc(){

  1144.     log check_mathfunc "$@"

  1145.     func=$1

  1146.     narg=$2

  1147.     shift 2

  1148.     test $narg = 2 && args="f, g" || args="f"

  1149.     disable $func

  1150.     check_ld "cc" "$@" <<EOF && enable $func

  1151. #include <math.h>

  1152. float foo(float f, float g) { return $func($args); }

  1153. int main(void){ return (int) foo; }

  1154. EOF

  1155. }

  1156. 

  1157. check_func_headers(){

  1158.     log check_func_headers "$@"

  1159.     headers=$1

  1160.     funcs=$2

  1161.     shift 2

  1162.     {

  1163.         for hdr in $headers; do

  1164.             print_include $hdr

  1165.         done

  1166.         echo "#include <stdint.h>"

  1167.         for func in $funcs; do

  1168.             echo "long check_$func(void) { return (long) $func; }"

  1169.         done

  1170.         echo "int main(void) { int ret = 0;"

  1171.         # LTO could optimize out the test functions without this

  1172.         for func in $funcs; do

  1173.             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"

  1174.         done

  1175.         echo "return ret; }"

  1176.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1177. }

  1178. 

  1179. check_class_headers_cpp(){

  1180.     log check_class_headers_cpp "$@"

  1181.     headers=$1

  1182.     classes=$2

  1183.     shift 2

  1184.     {

  1185.         for hdr in $headers; do

  1186.             echo "#include <$hdr>"

  1187.         done

  1188.         echo "int main(void) { "

  1189.         i=1

  1190.         for class in $classes; do

  1191.             echo "$class obj$i;"

  1192.             i=$(expr $i + 1)

  1193.         done

  1194.         echo "return 0; }"

  1195.     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers

  1196. }

  1197. 

  1198. check_cpp_condition(){

  1199.     log check_cpp_condition "$@"

  1200.     header=$1

  1201.     condition=$2

  1202.     shift 2

  1203.     check_cpp "$@" <<EOF

  1204. #include <$header>

  1205. #if !($condition)

  1206. #error "unsatisfied condition: $condition"

  1207. #endif

  1208. EOF

  1209. }

  1210. 

  1211. test_cflags_cc(){

  1212.     log test_cflags_cc "$@"

  1213.     flags=$1

  1214.     header=$2

  1215.     condition=$3

  1216.     shift 3

  1217.     set -- $($cflags_filter "$flags")

  1218.     check_cc "$@" <<EOF

  1219. #include <$header>

  1220. #if !($condition)

  1221. #error "unsatisfied condition: $condition"

  1222. #endif

  1223. EOF

  1224. }

  1225. 

  1226. check_lib(){

  1227.     log check_lib "$@"

  1228.     name="$1"

  1229.     headers="$2"

  1230.     funcs="$3"

  1231.     shift 3

  1232.     disable $name

  1233.     check_func_headers "$headers" "$funcs" "$@" &&

  1234.         enable $name && add_extralibs "$@"

  1235. }

  1236. 

  1237. check_lib_cpp(){

  1238.     log check_lib_cpp "$@"

  1239.     headers="$1"

  1240.     classes="$2"

  1241.     shift 2

  1242.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1243. }

  1244. 

  1245. check_pkg_config(){

  1246.     log check_pkg_config "$@"

  1247.     pkg_version="$1"

  1248.     pkg="${1%% *}"

  1249.     headers="$2"

  1250.     funcs="$3"

  1251.     shift 3

  1252.     check_cmd $pkg_config --exists --print-errors $pkg_version || return

  1253.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1254.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1255.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1256.         set_safe "${pkg}_cflags"    $pkg_cflags &&

  1257.         set_safe "${pkg}_extralibs" $pkg_libs

  1258. }

  1259. 

  1260. check_exec(){

  1261.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1262. }

  1263. 

  1264. check_exec_crash(){

  1265.     log check_exec_crash "$@"

  1266.     code=$(cat)

  1267. 

  1268.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1269.     # are safe but may not be available everywhere.  Thus we use

  1270.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1271.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1272.     # is not defined by standard C so it is used conditionally.

  1273. 

  1274.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1275. #include <signal.h>

  1276. static void sighandler(int sig){

  1277.     raise(SIGTERM);

  1278. }

  1279. int foo(void){

  1280.     $code

  1281. }

  1282. int (*func_ptr)(void) = foo;

  1283. int main(void){

  1284.     signal(SIGILL, sighandler);

  1285.     signal(SIGFPE, sighandler);

  1286.     signal(SIGSEGV, sighandler);

  1287. #ifdef SIGBUS

  1288.     signal(SIGBUS, sighandler);

  1289. #endif

  1290.     return func_ptr();

  1291. }

  1292. EOF

  1293. }

  1294. 

  1295. check_type(){

  1296.     log check_type "$@"

  1297.     headers=$1

  1298.     type=$2

  1299.     shift 2

  1300.     disable_safe "$type"

  1301.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1302. }

  1303. 

  1304. check_struct(){

  1305.     log check_struct "$@"

  1306.     headers=$1

  1307.     struct=$2

  1308.     member=$3

  1309.     shift 3

  1310.     disable_safe "${struct}_${member}"

  1311.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1312.         enable_safe "${struct}_${member}"

  1313. }

  1314. 

  1315. check_builtin(){

  1316.     log check_builtin "$@"

  1317.     name=$1

  1318.     headers=$2

  1319.     builtin=$3

  1320.     shift 3

  1321.     disable "$name"

  1322.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1323. }

  1324. 

  1325. check_compile_assert(){

  1326.     log check_compile_assert "$@"

  1327.     name=$1

  1328.     headers=$2

  1329.     condition=$3

  1330.     shift 3

  1331.     disable "$name"

  1332.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1333. }

  1334. 

  1335. require(){

  1336.     log require "$@"

  1337.     name_version="$1"

  1338.     name="${1%% *}"

  1339.     headers="$2"

  1340.     func="$3"

  1341.     shift 3

  1342.     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"

  1343. }

  1344. 

  1345. require_cpp(){

  1346.     name="$1"

  1347.     headers="$2"

  1348.     classes="$3"

  1349.     shift 3

  1350.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1351. }

  1352. 

  1353. use_pkg_config(){

  1354.     log use_pkg_config "$@"

  1355.     pkg="$1"

  1356.     check_pkg_config "$@" || return 1

  1357.     add_cflags    $(get_safe "${pkg}_cflags")

  1358.     add_extralibs $(get_safe "${pkg}_extralibs")

  1359. }

  1360. 

  1361. require_pkg_config(){

  1362.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1363. }

  1364. 

  1365. hostcc_e(){

  1366.     eval printf '%s\\n' $HOSTCC_E

  1367. }

  1368. 

  1369. hostcc_o(){

  1370.     eval printf '%s\\n' $HOSTCC_O

  1371. }

  1372. 

  1373. check_host_cc(){

  1374.     log check_host_cc "$@"

  1375.     cat > $TMPC

  1376.     log_file $TMPC

  1377.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1378. }

  1379. 

  1380. check_host_cpp(){

  1381.     log check_host_cpp "$@"

  1382.     cat > $TMPC

  1383.     log_file $TMPC

  1384.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1385. }

  1386. 

  1387. check_host_cppflags(){

  1388.     log check_host_cppflags "$@"

  1389.     check_host_cpp "$@" <<EOF && append host_cppflags "$@"

  1390. int x;

  1391. EOF

  1392. }

  1393. 

  1394. check_host_cflags(){

  1395.     log check_host_cflags "$@"

  1396.     set -- $($host_cflags_filter "$@")

  1397.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1398. int x;

  1399. EOF

  1400. }

  1401. 

  1402. check_host_cpp_condition(){

  1403.     log check_host_cpp_condition "$@"

  1404.     header=$1

  1405.     condition=$2

  1406.     shift 2

  1407.     check_host_cpp "$@" <<EOF

  1408. #include <$header>

  1409. #if !($condition)

  1410. #error "unsatisfied condition: $condition"

  1411. #endif

  1412. EOF

  1413. }

  1414. 

  1415. cp_if_changed(){

  1416.     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return

  1417.     mkdir -p "$(dirname $2)"

  1418.     cp -f "$1" "$2"

  1419. }

  1420. 

  1421. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1422. # system-dependent things.

  1423. 

  1424. AVCODEC_COMPONENTS="

  1425.     bsfs

  1426.     decoders

  1427.     encoders

  1428.     hwaccels

  1429.     parsers

  1430. "

  1431. 

  1432. AVDEVICE_COMPONENTS="

  1433.     indevs

  1434.     outdevs

  1435. "

  1436. AVFILTER_COMPONENTS="

  1437.     filters

  1438. "

  1439. AVFORMAT_COMPONENTS="

  1440.     demuxers

  1441.     muxers

  1442.     protocols

  1443. "

  1444. 

  1445. AVRESAMPLE_COMPONENTS=""

  1446. AVUTIL_COMPONENTS=""

  1447. 

  1448. COMPONENT_LIST="

  1449.     $AVCODEC_COMPONENTS

  1450.     $AVDEVICE_COMPONENTS

  1451.     $AVFILTER_COMPONENTS

  1452.     $AVFORMAT_COMPONENTS

  1453.     $AVRESAMPLE_COMPONENTS

  1454.     $AVUTIL_COMPONENTS

  1455. "

  1456. 

  1457. EXAMPLE_LIST="

  1458.     avio_dir_cmd_example

  1459.     avio_reading_example

  1460.     decode_audio_example

  1461.     decode_video_example

  1462.     demuxing_decoding_example

  1463.     encode_audio_example

  1464.     encode_video_example

  1465.     extract_mvs_example

  1466.     filter_audio_example

  1467.     filtering_audio_example

  1468.     filtering_video_example

  1469.     http_multiclient_example

  1470.     metadata_example

  1471.     muxing_example

  1472.     qsvdec_example

  1473.     remuxing_example

  1474.     resampling_audio_example

  1475.     scaling_video_example

  1476.     transcode_aac_example

  1477.     transcoding_example

  1478. "

  1479. EXTERNAL_AUTODETECT_LIBRARY_LIST="

  1480.     bzlib

  1481.     iconv

  1482.     libxcb

  1483.     libxcb_shm

  1484.     libxcb_shape

  1485.     libxcb_xfixes

  1486.     lzma

  1487.     schannel

  1488.     sdl

  1489.     sdl2

  1490.     securetransport

  1491.     xlib

  1492.     zlib

  1493. "

  1494. 

  1495. EXTERNAL_LIBRARY_GPL_LIST="

  1496.     avisynth

  1497.     frei0r

  1498.     libcdio

  1499.     librubberband

  1500.     libvidstab

  1501.     libx264

  1502.     libx265

  1503.     libxavs

  1504.     libxvid

  1505. "

  1506. 

  1507. EXTERNAL_LIBRARY_NONFREE_LIST="

  1508.     decklink

  1509.     libfdk_aac

  1510.     openssl

  1511. "

  1512. 

  1513. EXTERNAL_LIBRARY_VERSION3_LIST="

  1514.     gmp

  1515.     libopencore_amrnb

  1516.     libopencore_amrwb

  1517.     libvo_amrwbenc

  1518. "

  1519. 

  1520. EXTERNAL_LIBRARY_GPLV3_LIST="

  1521.     libsmbclient

  1522. "

  1523. 

  1524. EXTERNAL_LIBRARY_LIST="

  1525.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1526.     $EXTERNAL_LIBRARY_GPL_LIST

  1527.     $EXTERNAL_LIBRARY_NONFREE_LIST

  1528.     $EXTERNAL_LIBRARY_VERSION3_LIST

  1529.     $EXTERNAL_LIBRARY_GPLV3_LIST

  1530.     chromaprint

  1531.     crystalhd

  1532.     gcrypt

  1533.     gnutls

  1534.     jni

  1535.     ladspa

  1536.     libass

  1537.     libbluray

  1538.     libbs2b

  1539.     libcaca

  1540.     libcelt

  1541.     libdc1394

  1542.     libflite

  1543.     libfontconfig

  1544.     libfreetype

  1545.     libfribidi

  1546.     libgme

  1547.     libgsm

  1548.     libiec61883

  1549.     libilbc

  1550.     libkvazaar

  1551.     libmodplug

  1552.     libmp3lame

  1553.     libmysofa

  1554.     libopencv

  1555.     libopenh264

  1556.     libopenjpeg

  1557.     libopenmpt

  1558.     libopus

  1559.     libpulse

  1560.     librsvg

  1561.     librtmp

  1562.     libshine

  1563.     libsmbclient

  1564.     libsnappy

  1565.     libsoxr

  1566.     libspeex

  1567.     libssh

  1568.     libtesseract

  1569.     libtheora

  1570.     libtwolame

  1571.     libv4l2

  1572.     libvorbis

  1573.     libvpx

  1574.     libwavpack

  1575.     libwebp

  1576.     libzimg

  1577.     libzmq

  1578.     libzvbi

  1579.     mediacodec

  1580.     openal

  1581.     opencl

  1582.     opengl

  1583.     videotoolbox

  1584. "

  1585. HWACCEL_AUTODETECT_LIBRARY_LIST="

  1586.     audiotoolbox

  1587.     cuda

  1588.     cuvid

  1589.     d3d11va

  1590.     dxva2

  1591.     nvenc

  1592.     vaapi

  1593.     vda

  1594.     vdpau

  1595.     videotoolbox_hwaccel

  1596.     xvmc

  1597. "

  1598. 

  1599. HWACCEL_LIBRARY_NONFREE_LIST="

  1600.     cuda_sdk

  1601.     libnpp

  1602. "

  1603. 

  1604. HWACCEL_LIBRARY_LIST="

  1605.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1606.     $HWACCEL_LIBRARY_NONFREE_LIST

  1607.     libmfx

  1608.     mmal

  1609.     omx

  1610. "

  1611. 

  1612. DOCUMENT_LIST="

  1613.     doc

  1614.     htmlpages

  1615.     manpages

  1616.     podpages

  1617.     txtpages

  1618. "

  1619. 

  1620. FEATURE_LIST="

  1621.     ftrapv

  1622.     gray

  1623.     hardcoded_tables

  1624.     omx_rpi

  1625.     runtime_cpudetect

  1626.     safe_bitstream_reader

  1627.     shared

  1628.     small

  1629.     static

  1630.     swscale_alpha

  1631. "

  1632. 

  1633. LIBRARY_LIST="

  1634.     avcodec

  1635.     avdevice

  1636.     avfilter

  1637.     avformat

  1638.     avresample

  1639.     avutil

  1640.     postproc

  1641.     swresample

  1642.     swscale

  1643. "

  1644. 

  1645. LICENSE_LIST="

  1646.     gpl

  1647.     nonfree

  1648.     version3

  1649. "

  1650. 

  1651. PROGRAM_LIST="

  1652.     ffplay

  1653.     ffprobe

  1654.     ffserver

  1655.     ffmpeg

  1656. "

  1657. 

  1658. SUBSYSTEM_LIST="

  1659.     dct

  1660.     dwt

  1661.     error_resilience

  1662.     faan

  1663.     fast_unaligned

  1664.     fft

  1665.     lsp

  1666.     lzo

  1667.     mdct

  1668.     pixelutils

  1669.     network

  1670.     rdft

  1671. "

  1672. 

  1673. # COMPONENT_LIST needs to come last to ensure correct dependency checking

  1674. CONFIG_LIST="

  1675.     $DOCUMENT_LIST

  1676.     $EXAMPLE_LIST

  1677.     $EXTERNAL_LIBRARY_LIST

  1678.     $HWACCEL_LIBRARY_LIST

  1679.     $FEATURE_LIST

  1680.     $LICENSE_LIST

  1681.     $LIBRARY_LIST

  1682.     $PROGRAM_LIST

  1683.     $SUBSYSTEM_LIST

  1684.     fontconfig

  1685.     memory_poisoning

  1686.     neon_clobber_test

  1687.     ossfuzz

  1688.     pic

  1689.     thumb

  1690.     valgrind_backtrace

  1691.     xmm_clobber_test

  1692.     $COMPONENT_LIST

  1693. "

  1694. 

  1695. THREADS_LIST="

  1696.     pthreads

  1697.     os2threads

  1698.     w32threads

  1699. "

  1700. 

  1701. ATOMICS_LIST="

  1702.     atomics_gcc

  1703.     atomics_suncc

  1704.     atomics_win32

  1705. "

  1706. 

  1707. AUTODETECT_LIBS="

  1708.     $EXTERNAL_AUTODETECT_LIBRARY_LIST

  1709.     $HWACCEL_AUTODETECT_LIBRARY_LIST

  1710.     $THREADS_LIST

  1711. "

  1712. 

  1713. ARCH_LIST="

  1714.     aarch64

  1715.     alpha

  1716.     arm

  1717.     avr32

  1718.     avr32_ap

  1719.     avr32_uc

  1720.     bfin

  1721.     ia64

  1722.     m68k

  1723.     mips

  1724.     mips64

  1725.     parisc

  1726.     ppc

  1727.     ppc64

  1728.     s390

  1729.     sh4

  1730.     sparc

  1731.     sparc64

  1732.     tilegx

  1733.     tilepro

  1734.     tomi

  1735.     x86

  1736.     x86_32

  1737.     x86_64

  1738. "

  1739. 

  1740. ARCH_EXT_LIST_ARM="

  1741.     armv5te

  1742.     armv6

  1743.     armv6t2

  1744.     armv8

  1745.     neon

  1746.     vfp

  1747.     vfpv3

  1748.     setend

  1749. "

  1750. 

  1751. ARCH_EXT_LIST_MIPS="

  1752.     mipsfpu

  1753.     mips32r2

  1754.     mips32r5

  1755.     mips64r2

  1756.     mips32r6

  1757.     mips64r6

  1758.     mipsdsp

  1759.     mipsdspr2

  1760.     msa

  1761. "

  1762. 

  1763. ARCH_EXT_LIST_LOONGSON="

  1764.     loongson2

  1765.     loongson3

  1766.     mmi

  1767. "

  1768. 

  1769. ARCH_EXT_LIST_X86_SIMD="

  1770.     aesni

  1771.     amd3dnow

  1772.     amd3dnowext

  1773.     avx

  1774.     avx2

  1775.     fma3

  1776.     fma4

  1777.     mmx

  1778.     mmxext

  1779.     sse

  1780.     sse2

  1781.     sse3

  1782.     sse4

  1783.     sse42

  1784.     ssse3

  1785.     xop

  1786. "

  1787. 

  1788. ARCH_EXT_LIST_PPC="

  1789.     altivec

  1790.     dcbzl

  1791.     ldbrx

  1792.     power8

  1793.     ppc4xx

  1794.     vsx

  1795. "

  1796. 

  1797. ARCH_EXT_LIST_X86="

  1798.     $ARCH_EXT_LIST_X86_SIMD

  1799.     cpunop

  1800.     i686

  1801. "

  1802. 

  1803. ARCH_EXT_LIST="

  1804.     $ARCH_EXT_LIST_ARM

  1805.     $ARCH_EXT_LIST_PPC

  1806.     $ARCH_EXT_LIST_X86

  1807.     $ARCH_EXT_LIST_MIPS

  1808.     $ARCH_EXT_LIST_LOONGSON

  1809. "

  1810. 

  1811. ARCH_FEATURES="

  1812.     aligned_stack

  1813.     fast_64bit

  1814.     fast_clz

  1815.     fast_cmov

  1816.     local_aligned_8

  1817.     local_aligned_16

  1818.     local_aligned_32

  1819.     simd_align_16

  1820.     simd_align_32

  1821. "

  1822. 

  1823. BUILTIN_LIST="

  1824.     atomic_cas_ptr

  1825.     machine_rw_barrier

  1826.     MemoryBarrier

  1827.     mm_empty

  1828.     rdtsc

  1829.     sarestart

  1830.     sem_timedwait

  1831.     sync_val_compare_and_swap

  1832. "

  1833. HAVE_LIST_CMDLINE="

  1834.     inline_asm

  1835.     symver

  1836.     x86asm

  1837. "

  1838. 

  1839. HAVE_LIST_PUB="

  1840.     bigendian

  1841.     fast_unaligned

  1842. "

  1843. 

  1844. HEADERS_LIST="

  1845.     alsa_asoundlib_h

  1846.     altivec_h

  1847.     arpa_inet_h

  1848.     asm_types_h

  1849.     cdio_paranoia_h

  1850.     cdio_paranoia_paranoia_h

  1851.     cuda_h

  1852.     d3d11_h

  1853.     dispatch_dispatch_h

  1854.     dev_bktr_ioctl_bt848_h

  1855.     dev_bktr_ioctl_meteor_h

  1856.     dev_ic_bt8xx_h

  1857.     dev_video_bktr_ioctl_bt848_h

  1858.     dev_video_meteor_ioctl_meteor_h

  1859.     direct_h

  1860.     dirent_h

  1861.     dlfcn_h

  1862.     dxgidebug_h

  1863.     dxva_h

  1864.     ES2_gl_h

  1865.     gsm_h

  1866.     io_h

  1867.     mach_mach_time_h

  1868.     machine_ioctl_bt848_h

  1869.     machine_ioctl_meteor_h

  1870.     malloc_h

  1871.     opencv2_core_core_c_h

  1872.     openjpeg_2_2_openjpeg_h

  1873.     openjpeg_2_1_openjpeg_h

  1874.     openjpeg_2_0_openjpeg_h

  1875.     openjpeg_1_5_openjpeg_h

  1876.     OpenGL_gl3_h

  1877.     poll_h

  1878.     sndio_h

  1879.     soundcard_h

  1880.     stdatomic_h

  1881.     sys_mman_h

  1882.     sys_param_h

  1883.     sys_resource_h

  1884.     sys_select_h

  1885.     sys_soundcard_h

  1886.     sys_time_h

  1887.     sys_un_h

  1888.     sys_videoio_h

  1889.     termios_h

  1890.     udplite_h

  1891.     unistd_h

  1892.     valgrind_valgrind_h

  1893.     windows_h

  1894.     winsock2_h

  1895. "

  1896. 

  1897. INTRINSICS_LIST="

  1898.     intrinsics_neon

  1899. "

  1900. 

  1901. COMPLEX_FUNCS="

  1902.     cabs

  1903.     cexp

  1904. "

  1905. 

  1906. MATH_FUNCS="

  1907.     atanf

  1908.     atan2f

  1909.     cbrt

  1910.     cbrtf

  1911.     copysign

  1912.     cosf

  1913.     erf

  1914.     exp2

  1915.     exp2f

  1916.     expf

  1917.     hypot

  1918.     isfinite

  1919.     isinf

  1920.     isnan

  1921.     ldexpf

  1922.     llrint

  1923.     llrintf

  1924.     log2

  1925.     log2f

  1926.     log10f

  1927.     lrint

  1928.     lrintf

  1929.     powf

  1930.     rint

  1931.     round

  1932.     roundf

  1933.     sinf

  1934.     trunc

  1935.     truncf

  1936. "

  1937. 

  1938. SYSTEM_FUNCS="

  1939.     access

  1940.     aligned_malloc

  1941.     arc4random

  1942.     clock_gettime

  1943.     closesocket

  1944.     CommandLineToArgvW

  1945.     CoTaskMemFree

  1946.     CryptGenRandom

  1947.     dlopen

  1948.     fcntl

  1949.     flt_lim

  1950.     fork

  1951.     getaddrinfo

  1952.     gethrtime

  1953.     getopt

  1954.     GetProcessAffinityMask

  1955.     GetProcessMemoryInfo

  1956.     GetProcessTimes

  1957.     getrusage

  1958.     GetSystemTimeAsFileTime

  1959.     gettimeofday

  1960.     glob

  1961.     glXGetProcAddress

  1962.     gmtime_r

  1963.     inet_aton

  1964.     isatty

  1965.     jack_port_get_latency_range

  1966.     kbhit

  1967.     LoadLibrary

  1968.     localtime_r

  1969.     lstat

  1970.     lzo1x_999_compress

  1971.     mach_absolute_time

  1972.     MapViewOfFile

  1973.     memalign

  1974.     mkstemp

  1975.     mmap

  1976.     mprotect

  1977.     nanosleep

  1978.     PeekNamedPipe

  1979.     posix_memalign

  1980.     pthread_cancel

  1981.     sched_getaffinity

  1982.     SetConsoleTextAttribute

  1983.     SetConsoleCtrlHandler

  1984.     setmode

  1985.     setrlimit

  1986.     Sleep

  1987.     strerror_r

  1988.     sysconf

  1989.     sysctl

  1990.     usleep

  1991.     UTGetOSTypeFromString

  1992.     VirtualAlloc

  1993.     wglGetProcAddress

  1994. "

  1995. 

  1996. TOOLCHAIN_FEATURES="

  1997.     as_dn_directive

  1998.     as_fpu_directive

  1999.     as_func

  2000.     as_object_arch

  2001.     asm_mod_q

  2002.     attribute_may_alias

  2003.     attribute_packed

  2004.     blocks_extension

  2005.     ebp_available

  2006.     ebx_available

  2007.     gnu_as

  2008.     gnu_windres

  2009.     ibm_asm

  2010.     inline_asm_direct_symbol_refs

  2011.     inline_asm_labels

  2012.     inline_asm_nonlocal_labels

  2013.     pragma_deprecated

  2014.     rsync_contimeout

  2015.     symver_asm_label

  2016.     symver_gnu_asm

  2017.     vfp_args

  2018.     xform_asm

  2019.     xmm_clobbers

  2020. "

  2021. 

  2022. TYPES_LIST="

  2023.     CONDITION_VARIABLE_Ptr

  2024.     socklen_t

  2025.     struct_addrinfo

  2026.     struct_group_source_req

  2027.     struct_ip_mreq_source

  2028.     struct_ipv6_mreq

  2029.     struct_msghdr_msg_flags

  2030.     struct_pollfd

  2031.     struct_rusage_ru_maxrss

  2032.     struct_sctp_event_subscribe

  2033.     struct_sockaddr_in6

  2034.     struct_sockaddr_sa_len

  2035.     struct_sockaddr_storage

  2036.     struct_stat_st_mtim_tv_nsec

  2037.     struct_v4l2_frmivalenum_discrete

  2038. "

  2039. 

  2040. HAVE_LIST="

  2041.     $ARCH_EXT_LIST

  2042.     $(add_suffix _external $ARCH_EXT_LIST)

  2043.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2044.     $ARCH_FEATURES

  2045.     $ATOMICS_LIST

  2046.     $BUILTIN_LIST

  2047.     $COMPLEX_FUNCS

  2048.     $HAVE_LIST_CMDLINE

  2049.     $HAVE_LIST_PUB

  2050.     $HEADERS_LIST

  2051.     $INTRINSICS_LIST

  2052.     $MATH_FUNCS

  2053.     $SYSTEM_FUNCS

  2054.     $THREADS_LIST

  2055.     $TOOLCHAIN_FEATURES

  2056.     $TYPES_LIST

  2057.     alsa

  2058.     atomics_native

  2059.     dos_paths

  2060.     jack

  2061.     libc_msvcrt

  2062.     makeinfo

  2063.     makeinfo_html

  2064.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2065.     perl

  2066.     pod2man

  2067.     sdl2

  2068.     section_data_rel_ro

  2069.     sndio

  2070.     texi2html

  2071.     threads

  2072.     vaapi_drm

  2073.     vaapi_x11

  2074.     vdpau_x11

  2075.     winrt

  2076. "

  2077. 

  2078. # options emitted with CONFIG_ prefix but not available on the command line

  2079. CONFIG_EXTRA="

  2080.     aandcttables

  2081.     ac3dsp

  2082.     audio_frame_queue

  2083.     audiodsp

  2084.     blockdsp

  2085.     bswapdsp

  2086.     cabac

  2087.     dirac_parse

  2088.     dvprofile

  2089.     exif

  2090.     faandct

  2091.     faanidct

  2092.     fdctdsp

  2093.     flacdsp

  2094.     fmtconvert

  2095.     frame_thread_encoder

  2096.     g722dsp

  2097.     golomb

  2098.     gplv3

  2099.     h263dsp

  2100.     h264chroma

  2101.     h264dsp

  2102.     h264parse

  2103.     h264pred

  2104.     h264qpel

  2105.     hevcparse

  2106.     hpeldsp

  2107.     huffman

  2108.     huffyuvdsp

  2109.     huffyuvencdsp

  2110.     idctdsp

  2111.     iirfilter

  2112.     mdct15

  2113.     intrax8

  2114.     iso_media

  2115.     ividsp

  2116.     jpegtables

  2117.     lgplv3

  2118.     libx262

  2119.     llauddsp

  2120.     llviddsp

  2121.     llvidencdsp

  2122.     lpc

  2123.     lzf

  2124.     me_cmp

  2125.     mpeg_er

  2126.     mpegaudio

  2127.     mpegaudiodsp

  2128.     mpegaudioheader

  2129.     mpegvideo

  2130.     mpegvideoenc

  2131.     mss34dsp

  2132.     pixblockdsp

  2133.     qpeldsp

  2134.     qsv

  2135.     qsvdec

  2136.     qsvenc

  2137.     rangecoder

  2138.     riffdec

  2139.     riffenc

  2140.     rtpdec

  2141.     rtpenc_chain

  2142.     rv34dsp

  2143.     sinewin

  2144.     snappy

  2145.     srtp

  2146.     startcode

  2147.     texturedsp

  2148.     texturedspenc

  2149.     tpeldsp

  2150.     vaapi_encode

  2151.     vc1dsp

  2152.     videodsp

  2153.     vp3dsp

  2154.     vp56dsp

  2155.     vp8dsp

  2156.     vt_bt2020

  2157.     wma_freqs

  2158.     wmv2dsp

  2159. "

  2160. 

  2161. CMDLINE_SELECT="

  2162.     $ARCH_EXT_LIST

  2163.     $CONFIG_LIST

  2164.     $HAVE_LIST_CMDLINE

  2165.     $THREADS_LIST

  2166.     asm

  2167.     cross_compile

  2168.     debug

  2169.     extra_warnings

  2170.     logging

  2171.     lto

  2172.     optimizations

  2173.     rpath

  2174.     stripping

  2175. "

  2176. 

  2177. PATHS_LIST="

  2178.     bindir

  2179.     datadir

  2180.     docdir

  2181.     incdir

  2182.     libdir

  2183.     mandir

  2184.     pkgconfigdir

  2185.     prefix

  2186.     shlibdir

  2187.     install_name_dir

  2188. "

  2189. 

  2190. CMDLINE_SET="

  2191.     $PATHS_LIST

  2192.     ar

  2193.     arch

  2194.     as

  2195.     assert_level

  2196.     build_suffix

  2197.     cc

  2198.     objcc

  2199.     cpu

  2200.     cross_prefix

  2201.     custom_allocator

  2202.     cxx

  2203.     dep_cc

  2204.     doxygen

  2205.     env

  2206.     extra_version

  2207.     gas

  2208.     host_cc

  2209.     host_cflags

  2210.     host_extralibs

  2211.     host_ld

  2212.     host_ldflags

  2213.     host_os

  2214.     ignore_tests

  2215.     install

  2216.     ld

  2217.     ln_s

  2218.     logfile

  2219.     malloc_prefix

  2220.     nm

  2221.     optflags

  2222.     nvccflags

  2223.     pkg_config

  2224.     pkg_config_flags

  2225.     progs_suffix

  2226.     random_seed

  2227.     ranlib

  2228.     samples

  2229.     strip

  2230.     sws_max_filter_size

  2231.     sysinclude

  2232.     sysroot

  2233.     target_exec

  2234.     target_os

  2235.     target_path

  2236.     target_samples

  2237.     tempprefix

  2238.     toolchain

  2239.     valgrind

  2240.     x86asmexe

  2241. "

  2242. 

  2243. CMDLINE_APPEND="

  2244.     extra_cflags

  2245.     extra_cxxflags

  2246.     extra_objcflags

  2247.     host_cppflags

  2248. "

  2249. 

  2250. # code dependency declarations

  2251. 

  2252. # architecture extensions

  2253. 

  2254. armv5te_deps="arm"

  2255. armv6_deps="arm"

  2256. armv6t2_deps="arm"

  2257. armv8_deps="aarch64"

  2258. neon_deps_any="aarch64 arm"

  2259. intrinsics_neon_deps="neon"

  2260. vfp_deps_any="aarch64 arm"

  2261. vfpv3_deps="vfp"

  2262. setend_deps="arm"

  2263. 

  2264. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2265. 

  2266. loongson2_deps="mips"

  2267. loongson3_deps="mips"

  2268. mipsfpu_deps="mips"

  2269. mipsdsp_deps="mips"

  2270. mipsdspr2_deps="mips"

  2271. mips32r2_deps="mips"

  2272. mips32r5_deps="mips"

  2273. mips32r6_deps="mips"

  2274. mips64r2_deps="mips"

  2275. mips64r6_deps="mips"

  2276. msa_deps="mipsfpu"

  2277. mmi_deps="mips"

  2278. 

  2279. altivec_deps="ppc"

  2280. dcbzl_deps="ppc"

  2281. ldbrx_deps="ppc"

  2282. ppc4xx_deps="ppc"

  2283. vsx_deps="altivec"

  2284. power8_deps="vsx"

  2285. 

  2286. cpunop_deps="i686"

  2287. x86_64_select="i686"

  2288. x86_64_suggest="fast_cmov"

  2289. 

  2290. amd3dnow_deps="mmx"

  2291. amd3dnowext_deps="amd3dnow"

  2292. i686_deps="x86"

  2293. mmx_deps="x86"

  2294. mmxext_deps="mmx"

  2295. sse_deps="mmxext"

  2296. sse2_deps="sse"

  2297. sse3_deps="sse2"

  2298. ssse3_deps="sse3"

  2299. sse4_deps="ssse3"

  2300. sse42_deps="sse4"

  2301. aesni_deps="sse42"

  2302. avx_deps="sse42"

  2303. xop_deps="avx"

  2304. fma3_deps="avx"

  2305. fma4_deps="avx"

  2306. avx2_deps="avx"

  2307. 

  2308. mmx_external_deps="x86asm"

  2309. mmx_inline_deps="inline_asm"

  2310. mmx_suggest="mmx_external mmx_inline"

  2311. 

  2312. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2313.     eval dep=\$${ext}_deps

  2314.     eval ${ext}_external_deps='"${dep}_external"'

  2315.     eval ${ext}_inline_deps='"${dep}_inline"'

  2316.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2317. done

  2318. 

  2319. aligned_stack_if_any="aarch64 ppc x86"

  2320. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2321. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2322. fast_unaligned_if_any="aarch64 ppc x86"

  2323. simd_align_16_if_any="altivec neon sse"

  2324. simd_align_32_if_any="avx"

  2325. 

  2326. # system capabilities

  2327. symver_if_any="symver_asm_label symver_gnu_asm"

  2328. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2329. 

  2330. # threading support

  2331. atomics_gcc_if="sync_val_compare_and_swap"

  2332. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2333. atomics_win32_if="MemoryBarrier"

  2334. atomics_native_if_any="$ATOMICS_LIST"

  2335. w32threads_deps="atomics_native"

  2336. threads_if_any="$THREADS_LIST"

  2337. 

  2338. # subsystems

  2339. dct_select="rdft"

  2340. dirac_parse_select="golomb"

  2341. error_resilience_select="me_cmp"

  2342. faandct_deps="faan fdctdsp"

  2343. faanidct_deps="faan idctdsp"

  2344. h264dsp_select="startcode"

  2345. hevcparse_select="golomb"

  2346. frame_thread_encoder_deps="encoders threads"

  2347. intrax8_select="blockdsp idctdsp"

  2348. mdct_select="fft"

  2349. mdct15_select="fft"

  2350. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2351. mpeg_er_select="error_resilience"

  2352. mpegaudio_select="mpegaudiodsp mpegaudioheader"

  2353. mpegaudiodsp_select="dct"

  2354. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2355. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2356. vc1dsp_select="h264chroma qpeldsp startcode"

  2357. rdft_select="fft"

  2358. 

  2359. # decoders / encoders

  2360. aac_decoder_select="mdct15 mdct sinewin"

  2361. aac_fixed_decoder_select="mdct sinewin"

  2362. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2363. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2364. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2365. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2366. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2367. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2368. adpcm_g722_decoder_select="g722dsp"

  2369. adpcm_g722_encoder_select="g722dsp"

  2370. aic_decoder_select="golomb idctdsp"

  2371. alac_encoder_select="lpc"

  2372. als_decoder_select="bswapdsp"

  2373. amrnb_decoder_select="lsp"

  2374. amrwb_decoder_select="lsp"

  2375. amv_decoder_select="sp5x_decoder exif"

  2376. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2377. ape_decoder_select="bswapdsp llauddsp"

  2378. apng_decoder_select="zlib"

  2379. apng_encoder_select="llvidencdsp zlib"

  2380. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2381. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2382. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2383. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2384. atrac1_decoder_select="mdct sinewin"

  2385. atrac3_decoder_select="mdct"

  2386. atrac3p_decoder_select="mdct sinewin"

  2387. avrn_decoder_select="exif jpegtables"

  2388. bink_decoder_select="blockdsp hpeldsp"

  2389. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2390. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2391. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2392. clearvideo_decoder_select="idctdsp"

  2393. cllc_decoder_select="bswapdsp"

  2394. comfortnoise_encoder_select="lpc"

  2395. cook_decoder_select="audiodsp mdct sinewin"

  2396. cscd_decoder_select="lzo"

  2397. cscd_decoder_suggest="zlib"

  2398. dca_decoder_select="mdct"

  2399. dds_decoder_select="texturedsp"

  2400. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2401. dnxhd_decoder_select="blockdsp idctdsp"

  2402. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2403. dvvideo_decoder_select="dvprofile idctdsp"

  2404. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2405. dxa_decoder_select="zlib"

  2406. dxv_decoder_select="lzf texturedsp"

  2407. eac3_decoder_select="ac3_decoder"

  2408. eac3_encoder_select="ac3_encoder"

  2409. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2410. eatgq_decoder_select="aandcttables"

  2411. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2412. exr_decoder_select="zlib"

  2413. ffv1_decoder_select="rangecoder"

  2414. ffv1_encoder_select="rangecoder"

  2415. ffvhuff_decoder_select="huffyuv_decoder"

  2416. ffvhuff_encoder_select="huffyuv_encoder"

  2417. fic_decoder_select="golomb"

  2418. flac_decoder_select="flacdsp"

  2419. flac_encoder_select="bswapdsp flacdsp lpc"

  2420. flashsv2_decoder_select="zlib"

  2421. flashsv2_encoder_select="zlib"

  2422. flashsv_decoder_select="zlib"

  2423. flashsv_encoder_select="zlib"

  2424. flv_decoder_select="h263_decoder"

  2425. flv_encoder_select="h263_encoder"

  2426. fourxm_decoder_select="blockdsp bswapdsp"

  2427. fraps_decoder_select="bswapdsp huffman"

  2428. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2429. g729_decoder_select="audiodsp"

  2430. h261_decoder_select="mpegvideo"

  2431. h261_encoder_select="aandcttables mpegvideoenc"

  2432. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2433. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2434. h263i_decoder_select="h263_decoder"

  2435. h263p_decoder_select="h263_decoder"

  2436. h263p_encoder_select="h263_encoder"

  2437. h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"

  2438. h264_decoder_suggest="error_resilience"

  2439. hap_decoder_select="snappy texturedsp"

  2440. hap_encoder_deps="libsnappy"

  2441. hap_encoder_select="texturedspenc"

  2442. hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"

  2443. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2444. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"

  2445. iac_decoder_select="imc_decoder"

  2446. imc_decoder_select="bswapdsp fft mdct sinewin"

  2447. indeo3_decoder_select="hpeldsp"

  2448. indeo4_decoder_select="ividsp"

  2449. indeo5_decoder_select="ividsp"

  2450. interplay_video_decoder_select="hpeldsp"

  2451. jpegls_decoder_select="mjpeg_decoder"

  2452. jv_decoder_select="blockdsp"

  2453. lagarith_decoder_select="llviddsp"

  2454. ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"

  2455. magicyuv_decoder_select="llviddsp"

  2456. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2457. metasound_decoder_select="lsp mdct sinewin"

  2458. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2459. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2460. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2461. mjpegb_decoder_select="mjpeg_decoder"

  2462. mlp_decoder_select="mlp_parser"

  2463. mlp_encoder_select="lpc"

  2464. motionpixels_decoder_select="bswapdsp"

  2465. mp1_decoder_select="mpegaudio"

  2466. mp1float_decoder_select="mpegaudio"

  2467. mp2_decoder_select="mpegaudio"

  2468. mp2float_decoder_select="mpegaudio"

  2469. mp3_decoder_select="mpegaudio"

  2470. mp3adu_decoder_select="mpegaudio"

  2471. mp3adufloat_decoder_select="mpegaudio"

  2472. mp3float_decoder_select="mpegaudio"

  2473. mp3on4_decoder_select="mpegaudio"

  2474. mp3on4float_decoder_select="mpegaudio"

  2475. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2476. mpc8_decoder_select="mpegaudiodsp"

  2477. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2478. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2479. mpegvideo_decoder_select="mpegvideo"

  2480. mpeg1video_decoder_select="mpegvideo"

  2481. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2482. mpeg2video_decoder_select="mpegvideo"

  2483. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2484. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2485. mpeg4_encoder_select="h263_encoder"

  2486. msa1_decoder_select="mss34dsp"

  2487. mscc_decoder_select="zlib"

  2488. msmpeg4v1_decoder_select="h263_decoder"

  2489. msmpeg4v2_decoder_select="h263_decoder"

  2490. msmpeg4v2_encoder_select="h263_encoder"

  2491. msmpeg4v3_decoder_select="h263_decoder"

  2492. msmpeg4v3_encoder_select="h263_encoder"

  2493. mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"

  2494. mts2_decoder_select="mss34dsp"

  2495. mxpeg_decoder_select="mjpeg_decoder"

  2496. nellymoser_decoder_select="mdct sinewin"

  2497. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2498. nuv_decoder_select="idctdsp lzo"

  2499. on2avc_decoder_select="mdct"

  2500. opus_decoder_deps="swresample"

  2501. opus_decoder_select="mdct15"

  2502. opus_encoder_select="audio_frame_queue mdct15"

  2503. png_decoder_select="zlib"

  2504. png_encoder_select="llvidencdsp zlib"

  2505. prores_decoder_select="blockdsp idctdsp"

  2506. prores_encoder_select="fdctdsp"

  2507. qcelp_decoder_select="lsp"

  2508. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2509. ra_144_decoder_select="audiodsp"

  2510. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2511. ralf_decoder_select="golomb"

  2512. rawvideo_decoder_select="bswapdsp"

  2513. rscc_decoder_select="zlib"

  2514. rtjpeg_decoder_select="me_cmp"

  2515. rv10_decoder_select="h263_decoder"

  2516. rv10_encoder_select="h263_encoder"

  2517. rv20_decoder_select="h263_decoder"

  2518. rv20_encoder_select="h263_encoder"

  2519. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2520. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2521. screenpresso_decoder_select="zlib"

  2522. shorten_decoder_select="bswapdsp"

  2523. sipr_decoder_select="lsp"

  2524. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2525. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2526. sonic_decoder_select="golomb rangecoder"

  2527. sonic_encoder_select="golomb rangecoder"

  2528. sonic_ls_encoder_select="golomb rangecoder"

  2529. sp5x_decoder_select="mjpeg_decoder"

  2530. srgc_decoder_select="zlib"

  2531. svq1_decoder_select="hpeldsp"

  2532. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2533. svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"

  2534. svq3_decoder_suggest="zlib"

  2535. tak_decoder_select="audiodsp"

  2536. tdsc_decoder_select="zlib mjpeg_decoder"

  2537. theora_decoder_select="vp3_decoder"

  2538. thp_decoder_select="mjpeg_decoder"

  2539. tiff_decoder_suggest="zlib lzma"

  2540. tiff_encoder_suggest="zlib"

  2541. truehd_decoder_select="mlp_parser"

  2542. truehd_encoder_select="lpc"

  2543. truemotion2_decoder_select="bswapdsp"

  2544. truespeech_decoder_select="bswapdsp"

  2545. tscc_decoder_select="zlib"

  2546. twinvq_decoder_select="mdct lsp sinewin"

  2547. txd_decoder_select="texturedsp"

  2548. utvideo_decoder_select="bswapdsp llviddsp"

  2549. utvideo_encoder_select="bswapdsp huffman llvidencdsp"

  2550. vble_decoder_select="llviddsp"

  2551. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2552. vc1_qsv_decoder_deps="libmfx"

  2553. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"

  2554. vc1image_decoder_select="vc1_decoder"

  2555. vorbis_decoder_select="mdct"

  2556. vorbis_encoder_select="mdct"

  2557. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2558. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2559. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2560. vp6a_decoder_select="vp6_decoder"

  2561. vp6f_decoder_select="vp6_decoder"

  2562. vp7_decoder_select="h264pred videodsp vp8dsp"

  2563. vp8_decoder_select="h264pred videodsp vp8dsp"

  2564. vp9_decoder_select="videodsp vp9_parser"

  2565. webp_decoder_select="vp8_decoder exif"

  2566. wmalossless_decoder_select="llauddsp"

  2567. wmapro_decoder_select="mdct sinewin wma_freqs"

  2568. wmav1_decoder_select="mdct sinewin wma_freqs"

  2569. wmav1_encoder_select="mdct sinewin wma_freqs"

  2570. wmav2_decoder_select="mdct sinewin wma_freqs"

  2571. wmav2_encoder_select="mdct sinewin wma_freqs"

  2572. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2573. wmv1_decoder_select="h263_decoder"

  2574. wmv1_encoder_select="h263_encoder"

  2575. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2576. wmv2_encoder_select="h263_encoder wmv2dsp"

  2577. wmv3_decoder_select="vc1_decoder"

  2578. wmv3image_decoder_select="wmv3_decoder"

  2579. xma1_decoder_select="wmapro_decoder"

  2580. xma2_decoder_select="wmapro_decoder"

  2581. zerocodec_decoder_select="zlib"

  2582. zlib_decoder_select="zlib"

  2583. zlib_encoder_select="zlib"

  2584. zmbv_decoder_select="zlib"

  2585. zmbv_encoder_select="zlib"

  2586. 

  2587. # platform codecs

  2588. audiotoolbox_deps="AudioToolbox_AudioToolbox_h"

  2589. audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"

  2590. 

  2591. # hardware accelerators

  2592. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2593. cuda_deps_any="dlopen LoadLibrary"

  2594. cuvid_deps="cuda"

  2595. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2596. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"

  2597. dxva2_extralibs="-luser32"

  2598. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"

  2599. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2600. vda_deps="vda_framework pthreads"

  2601. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2602. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2603. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2604. xvmc_deps="X11_extensions_XvMClib_h"

  2605. 

  2606. h263_vaapi_hwaccel_deps="vaapi"

  2607. h263_vaapi_hwaccel_select="h263_decoder"

  2608. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2609. h263_videotoolbox_hwaccel_select="h263_decoder"

  2610. h264_cuvid_hwaccel_deps="cuda cuvid"

  2611. h264_cuvid_hwaccel_select="h264_cuvid_decoder"

  2612. h264_d3d11va_hwaccel_deps="d3d11va"

  2613. h264_d3d11va_hwaccel_select="h264_decoder"

  2614. h264_d3d11va2_hwaccel_deps="d3d11va"

  2615. h264_d3d11va2_hwaccel_select="h264_decoder"

  2616. h264_dxva2_hwaccel_deps="dxva2"

  2617. h264_dxva2_hwaccel_select="h264_decoder"

  2618. h264_mediacodec_hwaccel_deps="mediacodec"

  2619. h264_mmal_hwaccel_deps="mmal"

  2620. h264_qsv_hwaccel_deps="libmfx"

  2621. h264_vaapi_hwaccel_deps="vaapi"

  2622. h264_vaapi_hwaccel_select="h264_decoder"

  2623. h264_vda_hwaccel_deps="vda"

  2624. h264_vda_hwaccel_select="h264_decoder"

  2625. h264_vda_old_hwaccel_deps="vda"

  2626. h264_vda_old_hwaccel_select="h264_decoder"

  2627. h264_vdpau_hwaccel_deps="vdpau"

  2628. h264_vdpau_hwaccel_select="h264_decoder"

  2629. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2630. h264_videotoolbox_hwaccel_select="h264_decoder"

  2631. hevc_cuvid_hwaccel_deps="cuda cuvid"

  2632. hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"

  2633. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2634. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2635. hevc_mediacodec_hwaccel_deps="mediacodec"

  2636. hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2637. hevc_d3d11va2_hwaccel_select="hevc_decoder"

  2638. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2639. hevc_dxva2_hwaccel_select="hevc_decoder"

  2640. hevc_qsv_hwaccel_deps="libmfx"

  2641. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2642. hevc_vaapi_hwaccel_select="hevc_decoder"

  2643. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2644. hevc_vdpau_hwaccel_select="hevc_decoder"

  2645. mjpeg_cuvid_hwaccel_deps="cuda cuvid"

  2646. mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"

  2647. mpeg_xvmc_hwaccel_deps="xvmc"

  2648. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2649. mpeg1_cuvid_hwaccel_deps="cuda cuvid"

  2650. mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"

  2651. mpeg1_vdpau_hwaccel_deps="vdpau"

  2652. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2653. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2654. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2655. mpeg1_xvmc_hwaccel_deps="xvmc"

  2656. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2657. mpeg2_cuvid_hwaccel_deps="cuda cuvid"

  2658. mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"

  2659. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2660. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2661. mpeg2_d3d11va2_hwaccel_deps="d3d11va"

  2662. mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"

  2663. mpeg2_dxva2_hwaccel_deps="dxva2"

  2664. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2665. mpeg2_mediacodec_hwaccel_deps="mediacodec"

  2666. mpeg2_mmal_hwaccel_deps="mmal"

  2667. mpeg2_qsv_hwaccel_deps="libmfx"

  2668. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2669. mpeg2_vaapi_hwaccel_deps="vaapi"

  2670. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2671. mpeg2_vdpau_hwaccel_deps="vdpau"

  2672. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2673. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2674. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2675. mpeg2_xvmc_hwaccel_deps="xvmc"

  2676. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2677. mpeg4_cuvid_hwaccel_deps="cuda cuvid"

  2678. mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"

  2679. mpeg4_mediacodec_hwaccel_deps="mediacodec"

  2680. mpeg4_mmal_hwaccel_deps="mmal"

  2681. mpeg4_vaapi_hwaccel_deps="vaapi"

  2682. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2683. mpeg4_vdpau_hwaccel_deps="vdpau"

  2684. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2685. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2686. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2687. vc1_cuvid_hwaccel_deps="cuda cuvid"

  2688. vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"

  2689. vc1_d3d11va_hwaccel_deps="d3d11va"

  2690. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2691. vc1_d3d11va2_hwaccel_deps="d3d11va"

  2692. vc1_d3d11va2_hwaccel_select="vc1_decoder"

  2693. vc1_dxva2_hwaccel_deps="dxva2"

  2694. vc1_dxva2_hwaccel_select="vc1_decoder"

  2695. vc1_mmal_hwaccel_deps="mmal"

  2696. vc1_qsv_hwaccel_deps="libmfx"

  2697. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2698. vc1_vaapi_hwaccel_deps="vaapi"

  2699. vc1_vaapi_hwaccel_select="vc1_decoder"

  2700. vc1_vdpau_hwaccel_deps="vdpau"

  2701. vc1_vdpau_hwaccel_select="vc1_decoder"

  2702. vp8_cuvid_hwaccel_deps="cuda cuvid"

  2703. vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"

  2704. vp9_cuvid_hwaccel_deps="cuda cuvid"

  2705. vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"

  2706. vp8_mediacodec_hwaccel_deps="mediacodec"

  2707. vp8_qsv_hwaccel_deps="libmfx"

  2708. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2709. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2710. vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2711. vp9_d3d11va2_hwaccel_select="vp9_decoder"

  2712. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2713. vp9_dxva2_hwaccel_select="vp9_decoder"

  2714. vp9_mediacodec_hwaccel_deps="mediacodec"

  2715. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"

  2716. vp9_vaapi_hwaccel_select="vp9_decoder"

  2717. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2718. wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"

  2719. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2720. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2721. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2722. 

  2723. # hardware-accelerated codecs

  2724. omx_deps="dlopen pthreads"

  2725. omx_extralibs='$ldl'

  2726. omx_rpi_select="omx"

  2727. qsvdec_select="qsv"

  2728. qsvenc_select="qsv"

  2729. vaapi_encode_deps="vaapi"

  2730. 

  2731. hwupload_cuda_filter_deps="cuda"

  2732. scale_npp_filter_deps="cuda libnpp"

  2733. scale_cuda_filter_deps="cuda_sdk"

  2734. 

  2735. nvenc_deps="cuda"

  2736. nvenc_deps_any="dlopen LoadLibrary"

  2737. nvenc_encoder_deps="nvenc"

  2738. 

  2739. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2740. h264_cuvid_decoder_deps="cuda cuvid"

  2741. h264_cuvid_decoder_select="h264_mp4toannexb_bsf"

  2742. h264_mediacodec_decoder_deps="mediacodec"

  2743. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2744. h264_mmal_decoder_deps="mmal"

  2745. h264_nvenc_encoder_deps="nvenc"

  2746. h264_omx_encoder_deps="omx"

  2747. h264_qsv_decoder_deps="libmfx"

  2748. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2749. h264_qsv_encoder_deps="libmfx"

  2750. h264_qsv_encoder_select="qsvenc"

  2751. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2752. h264_vaapi_encoder_select="vaapi_encode golomb"

  2753. h264_vda_decoder_deps="vda"

  2754. h264_vda_decoder_select="h264_decoder"

  2755. h264_vdpau_decoder_deps="vdpau"

  2756. h264_vdpau_decoder_select="h264_decoder"

  2757. hevc_cuvid_decoder_deps="cuda cuvid"

  2758. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"

  2759. hevc_mediacodec_decoder_deps="mediacodec"

  2760. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2761. hevc_nvenc_encoder_deps="nvenc"

  2762. hevc_qsv_decoder_deps="libmfx"

  2763. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2764. hevc_qsv_encoder_deps="libmfx"

  2765. hevc_qsv_encoder_select="hevcparse qsvenc"

  2766. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2767. hevc_vaapi_encoder_select="vaapi_encode golomb"

  2768. mjpeg_cuvid_decoder_deps="cuda cuvid"

  2769. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2770. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2771. mpeg1_cuvid_decoder_deps="cuda cuvid"

  2772. mpeg1_vdpau_decoder_deps="vdpau"

  2773. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2774. mpeg2_crystalhd_decoder_select="crystalhd"

  2775. mpeg2_cuvid_decoder_deps="cuda cuvid"

  2776. mpeg2_mmal_decoder_deps="mmal"

  2777. mpeg2_mediacodec_decoder_deps="mediacodec"

  2778. mpeg2_qsv_decoder_deps="libmfx"

  2779. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2780. mpeg2_qsv_encoder_deps="libmfx"

  2781. mpeg2_qsv_encoder_select="qsvenc"

  2782. mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"

  2783. mpeg2_vaapi_encoder_select="vaapi_encode"

  2784. mpeg4_crystalhd_decoder_select="crystalhd"

  2785. mpeg4_cuvid_decoder_deps="cuda cuvid"

  2786. mpeg4_mediacodec_decoder_deps="mediacodec"

  2787. mpeg4_mmal_decoder_deps="mmal"

  2788. mpeg4_omx_encoder_deps="omx"

  2789. mpeg4_vdpau_decoder_deps="vdpau"

  2790. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2791. mpeg_vdpau_decoder_deps="vdpau"

  2792. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2793. msmpeg4_crystalhd_decoder_select="crystalhd"

  2794. nvenc_h264_encoder_select="h264_nvenc_encoder"

  2795. nvenc_hevc_encoder_select="hevc_nvenc_encoder"

  2796. vc1_crystalhd_decoder_select="crystalhd"

  2797. vc1_cuvid_decoder_deps="cuda cuvid"

  2798. vc1_mmal_decoder_deps="mmal"

  2799. vc1_vdpau_decoder_deps="vdpau"

  2800. vc1_vdpau_decoder_select="vc1_decoder"

  2801. vp8_cuvid_decoder_deps="cuda cuvid"

  2802. vp8_mediacodec_decoder_deps="mediacodec"

  2803. vp8_qsv_decoder_deps="libmfx"

  2804. vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"

  2805. vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"

  2806. vp8_vaapi_encoder_select="vaapi_encode"

  2807. vp9_cuvid_decoder_deps="cuda cuvid"

  2808. vp9_mediacodec_decoder_deps="mediacodec"

  2809. vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"

  2810. vp9_vaapi_encoder_select="vaapi_encode"

  2811. wmv3_crystalhd_decoder_select="crystalhd"

  2812. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2813. 

  2814. # parsers

  2815. h264_parser_select="golomb h264dsp h264parse"

  2816. hevc_parser_select="hevcparse"

  2817. mpegaudio_parser_select="mpegaudioheader"

  2818. mpegvideo_parser_select="mpegvideo"

  2819. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2820. vc1_parser_select="vc1dsp"

  2821. 

  2822. # bitstream_filters

  2823. mjpeg2jpeg_bsf_select="jpegtables"

  2824. 

  2825. # external libraries

  2826. aac_at_decoder_deps="audiotoolbox"

  2827. ac3_at_decoder_deps="audiotoolbox"

  2828. ac3_at_decoder_select="ac3_parser"

  2829. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2830. alac_at_decoder_deps="audiotoolbox"

  2831. amr_nb_at_decoder_deps="audiotoolbox"

  2832. avisynth_deps_any="dlopen LoadLibrary"

  2833. avisynth_demuxer_deps="avisynth"

  2834. avisynth_demuxer_select="riffdec"

  2835. eac3_at_decoder_deps="audiotoolbox"

  2836. eac3_at_decoder_select="ac3_parser"

  2837. gsm_ms_at_decoder_deps="audiotoolbox"

  2838. ilbc_at_decoder_deps="audiotoolbox"

  2839. mp1_at_decoder_deps="audiotoolbox"

  2840. mp2_at_decoder_deps="audiotoolbox"

  2841. mp3_at_decoder_deps="audiotoolbox"

  2842. mp1_at_decoder_select="mpegaudioheader"

  2843. mp2_at_decoder_select="mpegaudioheader"

  2844. mp3_at_decoder_select="mpegaudioheader"

  2845. pcm_alaw_at_decoder_deps="audiotoolbox"

  2846. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2847. qdmc_at_decoder_deps="audiotoolbox"

  2848. qdm2_at_decoder_deps="audiotoolbox"

  2849. aac_at_encoder_deps="audiotoolbox"

  2850. aac_at_encoder_select="audio_frame_queue"

  2851. alac_at_encoder_deps="audiotoolbox"

  2852. alac_at_encoder_select="audio_frame_queue"

  2853. ilbc_at_encoder_deps="audiotoolbox"

  2854. ilbc_at_encoder_select="audio_frame_queue"

  2855. pcm_alaw_at_encoder_deps="audiotoolbox"

  2856. pcm_alaw_at_encoder_select="audio_frame_queue"

  2857. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2858. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2859. chromaprint_muxer_deps="chromaprint"

  2860. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2861. libcelt_decoder_deps="libcelt"

  2862. libfdk_aac_decoder_deps="libfdk_aac"

  2863. libfdk_aac_encoder_deps="libfdk_aac"

  2864. libfdk_aac_encoder_select="audio_frame_queue"

  2865. libgme_demuxer_deps="libgme"

  2866. libgsm_decoder_deps="libgsm"

  2867. libgsm_encoder_deps="libgsm"

  2868. libgsm_ms_decoder_deps="libgsm"

  2869. libgsm_ms_encoder_deps="libgsm"

  2870. libilbc_decoder_deps="libilbc"

  2871. libilbc_encoder_deps="libilbc"

  2872. libkvazaar_encoder_deps="libkvazaar"

  2873. libmodplug_demuxer_deps="libmodplug"

  2874. libmp3lame_encoder_deps="libmp3lame"

  2875. libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"

  2876. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2877. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2878. libopencore_amrnb_encoder_select="audio_frame_queue"

  2879. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2880. libopenh264_decoder_deps="libopenh264"

  2881. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2882. libopenh264_encoder_deps="libopenh264"

  2883. libopenjpeg_decoder_deps="libopenjpeg"

  2884. libopenjpeg_encoder_deps="libopenjpeg"

  2885. libopenmpt_demuxer_deps="libopenmpt"

  2886. libopus_decoder_deps="libopus"

  2887. libopus_encoder_deps="libopus"

  2888. libopus_encoder_select="audio_frame_queue"

  2889. librsvg_decoder_deps="librsvg"

  2890. libshine_encoder_deps="libshine"

  2891. libshine_encoder_select="audio_frame_queue"

  2892. libspeex_decoder_deps="libspeex"

  2893. libspeex_encoder_deps="libspeex"

  2894. libspeex_encoder_select="audio_frame_queue"

  2895. libtheora_encoder_deps="libtheora"

  2896. libtwolame_encoder_deps="libtwolame"

  2897. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2898. libvorbis_decoder_deps="libvorbis"

  2899. libvorbis_encoder_deps="libvorbis"

  2900. libvorbis_encoder_select="audio_frame_queue"

  2901. libvpx_vp8_decoder_deps="libvpx"

  2902. libvpx_vp8_encoder_deps="libvpx"

  2903. libvpx_vp9_decoder_deps="libvpx"

  2904. libvpx_vp9_encoder_deps="libvpx"

  2905. libwavpack_encoder_deps="libwavpack"

  2906. libwavpack_encoder_select="audio_frame_queue"

  2907. libwebp_encoder_deps="libwebp"

  2908. libwebp_anim_encoder_deps="libwebp"

  2909. libx262_encoder_deps="libx262"

  2910. libx264_encoder_deps="libx264"

  2911. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2912. libx264rgb_encoder_select="libx264_encoder"

  2913. libx265_encoder_deps="libx265"

  2914. libxavs_encoder_deps="libxavs"

  2915. libxvid_encoder_deps="libxvid"

  2916. libzvbi_teletext_decoder_deps="libzvbi"

  2917. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2918. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2919. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2920. videotoolbox_encoder_suggest="vda_framework vt_bt2020"

  2921. vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"

  2922. 

  2923. # demuxers / muxers

  2924. ac3_demuxer_select="ac3_parser"

  2925. aiff_muxer_select="iso_media"

  2926. asf_demuxer_select="riffdec"

  2927. asf_o_demuxer_select="riffdec"

  2928. asf_muxer_select="riffenc"

  2929. asf_stream_muxer_select="asf_muxer"

  2930. avi_demuxer_select="iso_media riffdec exif"

  2931. avi_muxer_select="riffenc"

  2932. caf_demuxer_select="iso_media riffdec"

  2933. caf_muxer_select="iso_media"

  2934. dash_muxer_select="mp4_muxer"

  2935. dirac_demuxer_select="dirac_parser"

  2936. dts_demuxer_select="dca_parser"

  2937. dtshd_demuxer_select="dca_parser"

  2938. dv_demuxer_select="dvprofile"

  2939. dv_muxer_select="dvprofile"

  2940. dxa_demuxer_select="riffdec"

  2941. eac3_demuxer_select="ac3_parser"

  2942. f4v_muxer_select="mov_muxer"

  2943. fifo_muxer_deps="threads"

  2944. flac_demuxer_select="flac_parser"

  2945. hds_muxer_select="flv_muxer"

  2946. hls_muxer_select="mpegts_muxer"

  2947. image2_alias_pix_demuxer_select="image2_demuxer"

  2948. image2_brender_pix_demuxer_select="image2_demuxer"

  2949. ipod_muxer_select="mov_muxer"

  2950. ismv_muxer_select="mov_muxer"

  2951. matroska_audio_muxer_select="matroska_muxer"

  2952. matroska_demuxer_select="iso_media riffdec"

  2953. matroska_demuxer_suggest="bzlib lzo zlib"

  2954. matroska_muxer_select="iso_media riffenc"

  2955. mmf_muxer_select="riffenc"

  2956. mov_demuxer_select="iso_media riffdec"

  2957. mov_demuxer_suggest="zlib"

  2958. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2959. mp3_demuxer_select="mpegaudio_parser"

  2960. mp3_muxer_select="mpegaudioheader"

  2961. mp4_muxer_select="mov_muxer"

  2962. mpegts_demuxer_select="iso_media"

  2963. mpegts_muxer_select="adts_muxer latm_muxer"

  2964. mpegtsraw_demuxer_select="mpegts_demuxer"

  2965. mxf_d10_muxer_select="mxf_muxer"

  2966. mxf_opatom_muxer_select="mxf_muxer"

  2967. nut_muxer_select="riffenc"

  2968. nuv_demuxer_select="riffdec"

  2969. oga_muxer_select="ogg_muxer"

  2970. ogg_demuxer_select="dirac_parse"

  2971. ogv_muxer_select="ogg_muxer"

  2972. opus_muxer_select="ogg_muxer"

  2973. psp_muxer_select="mov_muxer"

  2974. rtp_demuxer_select="sdp_demuxer"

  2975. rtp_muxer_select="golomb"

  2976. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  2977. rtsp_demuxer_select="http_protocol rtpdec"

  2978. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2979. sap_demuxer_select="sdp_demuxer"

  2980. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2981. sdp_demuxer_select="rtpdec"

  2982. smoothstreaming_muxer_select="ismv_muxer"

  2983. spdif_muxer_select="aac_parser"

  2984. spx_muxer_select="ogg_muxer"

  2985. swf_demuxer_suggest="zlib"

  2986. tak_demuxer_select="tak_parser"

  2987. tg2_muxer_select="mov_muxer"

  2988. tgp_muxer_select="mov_muxer"

  2989. vobsub_demuxer_select="mpegps_demuxer"

  2990. w64_demuxer_select="wav_demuxer"

  2991. w64_muxer_select="wav_muxer"

  2992. wav_demuxer_select="riffdec"

  2993. wav_muxer_select="riffenc"

  2994. webm_muxer_select="iso_media riffenc"

  2995. webm_dash_manifest_demuxer_select="matroska_demuxer"

  2996. wtv_demuxer_select="mpegts_demuxer riffdec"

  2997. wtv_muxer_select="mpegts_muxer riffenc"

  2998. xmv_demuxer_select="riffdec"

  2999. xwma_demuxer_select="riffdec"

  3000. 

  3001. # indevs / outdevs

  3002. alsa_indev_deps="alsa"

  3003. alsa_outdev_deps="alsa"

  3004. avfoundation_indev_deps="pthreads"

  3005. avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"

  3006. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  3007. caca_outdev_deps="libcaca"

  3008. decklink_indev_deps="decklink threads"

  3009. decklink_indev_extralibs="-lstdc++"

  3010. decklink_outdev_deps="decklink threads"

  3011. decklink_outdev_extralibs="-lstdc++"

  3012. dshow_indev_deps="IBaseFilter"

  3013. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  3014. dv1394_indev_deps="dv1394"

  3015. dv1394_indev_select="dv_demuxer"

  3016. fbdev_indev_deps="linux_fb_h"

  3017. fbdev_outdev_deps="linux_fb_h"

  3018. gdigrab_indev_deps="CreateDIBSection"

  3019. gdigrab_indev_extralibs="-lgdi32"

  3020. gdigrab_indev_select="bmp_decoder"

  3021. iec61883_indev_deps="libiec61883"

  3022. jack_indev_deps="jack"

  3023. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  3024. lavfi_indev_deps="avfilter"

  3025. libcdio_indev_deps="libcdio"

  3026. libdc1394_indev_deps="libdc1394"

  3027. libv4l2_indev_deps="libv4l2"

  3028. openal_indev_deps="openal"

  3029. opengl_outdev_deps="opengl"

  3030. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  3031. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  3032. pulse_indev_deps="libpulse"

  3033. pulse_outdev_deps="libpulse"

  3034. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  3035. qtkit_indev_select="qtkit"

  3036. sdl2_outdev_deps="sdl2"

  3037. sndio_indev_deps="sndio"

  3038. sndio_outdev_deps="sndio"

  3039. v4l_indev_deps="linux_videodev_h"

  3040. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  3041. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  3042. vfwcap_indev_deps="vfw32 vfwcap_defines"

  3043. xcbgrab_indev_deps="libxcb"

  3044. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  3045. xv_outdev_extralibs="-lXv -lX11 -lXext"

  3046. 

  3047. # protocols

  3048. async_protocol_deps="threads"

  3049. bluray_protocol_deps="libbluray"

  3050. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  3051. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  3052. ffrtmpcrypt_protocol_select="tcp_protocol"

  3053. ffrtmphttp_protocol_deps="!librtmp_protocol"

  3054. ffrtmphttp_protocol_select="http_protocol"

  3055. ftp_protocol_select="tcp_protocol"

  3056. gopher_protocol_select="network"

  3057. http_protocol_select="tcp_protocol"

  3058. httpproxy_protocol_select="tcp_protocol"

  3059. https_protocol_select="tls_protocol"

  3060. icecast_protocol_select="http_protocol"

  3061. librtmp_protocol_deps="librtmp"

  3062. librtmpe_protocol_deps="librtmp"

  3063. librtmps_protocol_deps="librtmp"

  3064. librtmpt_protocol_deps="librtmp"

  3065. librtmpte_protocol_deps="librtmp"

  3066. libsmbclient_protocol_deps="libsmbclient gplv3"

  3067. libssh_protocol_deps="libssh"

  3068. mmsh_protocol_select="http_protocol"

  3069. mmst_protocol_select="network"

  3070. rtmp_protocol_deps="!librtmp_protocol"

  3071. rtmp_protocol_select="tcp_protocol"

  3072. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  3073. rtmps_protocol_deps="!librtmp_protocol"

  3074. rtmps_protocol_select="tls_protocol"

  3075. rtmpt_protocol_select="ffrtmphttp_protocol"

  3076. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  3077. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  3078. rtp_protocol_select="udp_protocol"

  3079. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  3080. sctp_protocol_select="network"

  3081. srtp_protocol_select="rtp_protocol srtp"

  3082. tcp_protocol_select="network"

  3083. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  3084. tls_gnutls_protocol_select="tcp_protocol"

  3085. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  3086. tls_openssl_protocol_select="tcp_protocol"

  3087. tls_schannel_protocol_deps="schannel"

  3088. tls_schannel_protocol_select="tcp_protocol"

  3089. tls_securetransport_protocol_deps="securetransport"

  3090. tls_securetransport_protocol_select="tcp_protocol"

  3091. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3092. udp_protocol_select="network"

  3093. udplite_protocol_select="network"

  3094. unix_protocol_deps="sys_un_h"

  3095. unix_protocol_select="network"

  3096. 

  3097. # filters

  3098. afftfilt_filter_deps="avcodec"

  3099. afftfilt_filter_select="fft"

  3100. afir_filter_deps="avcodec"

  3101. afir_filter_select="fft"

  3102. amovie_filter_deps="avcodec avformat"

  3103. aresample_filter_deps="swresample"

  3104. ass_filter_deps="libass"

  3105. atempo_filter_deps="avcodec"

  3106. atempo_filter_select="rdft"

  3107. azmq_filter_deps="libzmq"

  3108. blackframe_filter_deps="gpl"

  3109. boxblur_filter_deps="gpl"

  3110. bs2b_filter_deps="libbs2b"

  3111. colormatrix_filter_deps="gpl"

  3112. cover_rect_filter_deps="avcodec avformat gpl"

  3113. cropdetect_filter_deps="gpl"

  3114. deinterlace_qsv_filter_deps="libmfx"

  3115. deinterlace_vaapi_filter_deps="vaapi"

  3116. delogo_filter_deps="gpl"

  3117. deshake_filter_select="pixelutils"

  3118. drawtext_filter_deps="libfreetype"

  3119. elbg_filter_deps="avcodec"

  3120. eq_filter_deps="gpl"

  3121. fftfilt_filter_deps="avcodec"

  3122. fftfilt_filter_select="rdft"

  3123. find_rect_filter_deps="avcodec avformat gpl"

  3124. firequalizer_filter_deps="avcodec"

  3125. firequalizer_filter_select="rdft"

  3126. flite_filter_deps="libflite"

  3127. framerate_filter_select="pixelutils"

  3128. frei0r_filter_deps="frei0r dlopen"

  3129. frei0r_src_filter_deps="frei0r dlopen"

  3130. fspp_filter_deps="gpl"

  3131. geq_filter_deps="gpl"

  3132. histeq_filter_deps="gpl"

  3133. hqdn3d_filter_deps="gpl"

  3134. interlace_filter_deps="gpl"

  3135. kerndeint_filter_deps="gpl"

  3136. ladspa_filter_deps="ladspa dlopen"

  3137. mcdeint_filter_deps="avcodec gpl"

  3138. movie_filter_deps="avcodec avformat"

  3139. mpdecimate_filter_deps="gpl"

  3140. mpdecimate_filter_select="pixelutils"

  3141. mptestsrc_filter_deps="gpl"

  3142. negate_filter_deps="lut_filter"

  3143. nnedi_filter_deps="gpl"

  3144. ocr_filter_deps="libtesseract"

  3145. ocv_filter_deps="libopencv"

  3146. owdenoise_filter_deps="gpl"

  3147. pan_filter_deps="swresample"

  3148. perspective_filter_deps="gpl"

  3149. phase_filter_deps="gpl"

  3150. pp7_filter_deps="gpl"

  3151. pp_filter_deps="gpl postproc"

  3152. pullup_filter_deps="gpl"

  3153. removelogo_filter_deps="avcodec avformat swscale"

  3154. repeatfields_filter_deps="gpl"

  3155. resample_filter_deps="avresample"

  3156. rubberband_filter_deps="librubberband"

  3157. sab_filter_deps="gpl swscale"

  3158. scale2ref_filter_deps="swscale"

  3159. scale_filter_deps="swscale"

  3160. scale_qsv_filter_deps="libmfx"

  3161. select_filter_select="pixelutils"

  3162. showcqt_filter_deps="avcodec avformat swscale"

  3163. showcqt_filter_select="fft"

  3164. showfreqs_filter_deps="avcodec"

  3165. showfreqs_filter_select="fft"

  3166. showspectrum_filter_deps="avcodec"

  3167. showspectrum_filter_select="fft"

  3168. showspectrumpic_filter_deps="avcodec"

  3169. showspectrumpic_filter_select="fft"

  3170. signature_filter_deps="gpl avcodec avformat"

  3171. smartblur_filter_deps="gpl swscale"

  3172. sofalizer_filter_deps="libmysofa avcodec"

  3173. sofalizer_filter_select="fft"

  3174. spectrumsynth_filter_deps="avcodec"

  3175. spectrumsynth_filter_select="fft"

  3176. spp_filter_deps="gpl avcodec"

  3177. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3178. stereo3d_filter_deps="gpl"

  3179. subtitles_filter_deps="avformat avcodec libass"

  3180. super2xsai_filter_deps="gpl"

  3181. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3182. tinterlace_filter_deps="gpl"

  3183. tinterlace_merge_test_deps="tinterlace_filter"

  3184. tinterlace_pad_test_deps="tinterlace_filter"

  3185. uspp_filter_deps="gpl avcodec"

  3186. vaguedenoiser_filter_deps="gpl"

  3187. vidstabdetect_filter_deps="libvidstab"

  3188. vidstabtransform_filter_deps="libvidstab"

  3189. zmq_filter_deps="libzmq"

  3190. zoompan_filter_deps="swscale"

  3191. zscale_filter_deps="libzimg"

  3192. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3193. 

  3194. # examples

  3195. avio_dir_cmd_deps="avformat avutil"

  3196. avio_reading_deps="avformat avcodec avutil"

  3197. decode_audio_example_deps="avcodec avutil"

  3198. decode_video_example_deps="avcodec avutil"

  3199. demuxing_decoding_example_deps="avcodec avformat avutil"

  3200. encode_audio_example_deps="avcodec avutil"

  3201. encode_video_example_deps="avcodec avutil"

  3202. extract_mvs_example_deps="avcodec avformat avutil"

  3203. filter_audio_example_deps="avfilter avutil"

  3204. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3205. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3206. http_multiclient_example_deps="avformat avutil fork"

  3207. metadata_example_deps="avformat avutil"

  3208. muxing_example_deps="avcodec avformat avutil swscale"

  3209. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"

  3210. remuxing_example_deps="avcodec avformat avutil"

  3211. resampling_audio_example_deps="avutil swresample"

  3212. scaling_video_example_deps="avutil swscale"

  3213. transcode_aac_example_deps="avcodec avformat swresample"

  3214. transcoding_example_deps="avfilter avcodec avformat avutil"

  3215. 

  3216. # libraries, in linking order

  3217. avcodec_deps="avutil"

  3218. avcodec_select="null_bsf"

  3219. avdevice_deps="avformat avcodec avutil"

  3220. avfilter_deps="avutil"

  3221. avformat_deps="avcodec avutil"

  3222. avresample_deps="avutil"

  3223. postproc_deps="avutil gpl"

  3224. swresample_deps="avutil"

  3225. swscale_deps="avutil"

  3226. 

  3227. # programs

  3228. ffmpeg_deps="avcodec avfilter avformat swresample"

  3229. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3230.                null_filter

  3231.                trim_filter"

  3232. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3233. ffplay_extralibs='$sdl2_extralibs'

  3234. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3235. ffprobe_deps="avcodec avformat"

  3236. ffserver_deps="avformat fork sarestart"

  3237. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3238. 

  3239. # documentation

  3240. podpages_deps="perl"

  3241. manpages_deps="perl pod2man"

  3242. htmlpages_deps="perl"

  3243. htmlpages_deps_any="makeinfo_html texi2html"

  3244. txtpages_deps="perl makeinfo"

  3245. doc_deps_any="manpages htmlpages podpages txtpages"

  3246. 

  3247. # default parameters

  3248. 

  3249. logfile="ffbuild/config.log"

  3250. 

  3251. # installation paths

  3252. prefix_default="/usr/local"

  3253. bindir_default='${prefix}/bin'

  3254. datadir_default='${prefix}/share/ffmpeg'

  3255. docdir_default='${prefix}/share/doc/ffmpeg'

  3256. incdir_default='${prefix}/include'

  3257. libdir_default='${prefix}/lib'

  3258. mandir_default='${prefix}/share/man'

  3259. 

  3260. # toolchain

  3261. ar_default="ar"

  3262. cc_default="gcc"

  3263. cxx_default="g++"

  3264. host_cc_default="gcc"

  3265. doxygen_default="doxygen"

  3266. install="install"

  3267. ln_s_default="ln -s -f"

  3268. nm_default="nm -g"

  3269. pkg_config_default=pkg-config

  3270. ranlib_default="ranlib"

  3271. strip_default="strip"

  3272. version_script='--version-script'

  3273. x86asmexe_default="nasm"

  3274. windres_default="windres"

  3275. nvcc_default="nvcc"

  3276. nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"

  3277. 

  3278. # OS

  3279. target_os_default=$(tolower $(uname -s))

  3280. host_os=$target_os_default

  3281. 

  3282. # machine

  3283. if test "$target_os_default" = aix; then

  3284.     arch_default=$(uname -p)

  3285.     strip_default="strip -X32_64"

  3286. else

  3287.     arch_default=$(uname -m)

  3288. fi

  3289. cpu="generic"

  3290. intrinsics="none"

  3291. 

  3292. # configurable options

  3293. enable $PROGRAM_LIST

  3294. enable $DOCUMENT_LIST

  3295. enable $EXAMPLE_LIST

  3296. enable $(filter_out avresample $LIBRARY_LIST)

  3297. enable stripping

  3298. 

  3299. enable asm

  3300. enable debug

  3301. enable doc

  3302. enable faan faandct faanidct

  3303. enable optimizations

  3304. enable runtime_cpudetect

  3305. enable safe_bitstream_reader

  3306. enable static

  3307. enable swscale_alpha

  3308. enable valgrind_backtrace

  3309. 

  3310. sws_max_filter_size_default=256

  3311. set_default sws_max_filter_size

  3312. 

  3313. # build settings

  3314. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3315. LIBPREF="lib"

  3316. LIBSUF=".a"

  3317. FULLNAME='$(NAME)$(BUILDSUF)'

  3318. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3319. SLIBPREF="lib"

  3320. SLIBSUF=".so"

  3321. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3322. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3323. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3324. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3325. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3326. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3327. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3328. 

  3329. asflags_filter=echo

  3330. cflags_filter=echo

  3331. ldflags_filter=echo

  3332. 

  3333. AS_C='-c'

  3334. AS_O='-o $@'

  3335. CC_C='-c'

  3336. CC_E='-E -o $@'

  3337. CC_O='-o $@'

  3338. CXX_C='-c'

  3339. CXX_O='-o $@'

  3340. OBJCC_C='-c'

  3341. OBJCC_E='-E -o $@'

  3342. OBJCC_O='-o $@'

  3343. X86ASM_O='-o $@'

  3344. LD_O='-o $@'

  3345. LD_LIB='-l%'

  3346. LD_PATH='-L'

  3347. HOSTCC_C='-c'

  3348. HOSTCC_E='-E -o $@'

  3349. HOSTCC_O='-o $@'

  3350. HOSTLD_O='-o $@'

  3351. NVCC_C='-c'

  3352. NVCC_O='-o $@'

  3353. 

  3354. host_extralibs='-lm'

  3355. host_cflags_filter=echo

  3356. host_ldflags_filter=echo

  3357. 

  3358. target_path='$(CURDIR)'

  3359. 

  3360. # since the object filename is not given with the -MM flag, the compiler

  3361. # is only able to print the basename, and we must add the path ourselves

  3362. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3363. DEPFLAGS='-MM'

  3364. 

  3365. mkdir -p ffbuild

  3366. 

  3367. # find source path

  3368. if test -f configure; then

  3369.     source_path=.

  3370. else

  3371.     source_path=$(cd $(dirname "$0"); pwd)

  3372.     case "$source_path" in

  3373.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3374.     esac

  3375.     test -e "$source_path/config.h" &&

  3376.         die "Out of tree builds are impossible with config.h in source dir."

  3377. fi

  3378. 

  3379. for v in "$@"; do

  3380.     r=${v#*=}

  3381.     l=${v%"$r"}

  3382.     r=$(sh_quote "$r")

  3383.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3384. done

  3385. 

  3386. find_things(){

  3387.     thing=$1

  3388.     pattern=$2

  3389.     file=$source_path/$3

  3390.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3391. }

  3392. 

  3393. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3394. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3395. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3396. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3397. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3398. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3399. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3400. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3401. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3402. 

  3403. find_things_extern(){

  3404.     thing=$1

  3405.     pattern=$2

  3406.     file=$source_path/$3

  3407.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3408. }

  3409. 

  3410. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3411. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3412. 

  3413. ALL_COMPONENTS="

  3414.     $BSF_LIST

  3415.     $DECODER_LIST

  3416.     $DEMUXER_LIST

  3417.     $ENCODER_LIST

  3418.     $FILTER_LIST

  3419.     $HWACCEL_LIST

  3420.     $INDEV_LIST

  3421.     $MUXER_LIST

  3422.     $OUTDEV_LIST

  3423.     $PARSER_LIST

  3424.     $PROTOCOL_LIST

  3425. "

  3426. 

  3427. for n in $COMPONENT_LIST; do

  3428.     v=$(toupper ${n%s})_LIST

  3429.     eval enable \$$v

  3430.     eval ${n}_if_any="\$$v"

  3431. done

  3432. 

  3433. enable $ARCH_EXT_LIST

  3434. 

  3435. die_unknown(){

  3436.     echo "Unknown option \"$1\"."

  3437.     echo "See $0 --help for available options."

  3438.     exit 1

  3439. }

  3440. 

  3441. print_in_columns() {

  3442.     cols=$(expr $ncols / 24)

  3443.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3444. }

  3445. 

  3446. show_list() {

  3447.     suffix=_$1

  3448.     shift

  3449.     echo $* | sed s/$suffix//g | print_in_columns

  3450.     exit 0

  3451. }

  3452. 

  3453. rand_list(){

  3454.     IFS=', '

  3455.     set -- $*

  3456.     unset IFS

  3457.     for thing; do

  3458.         comp=${thing%:*}

  3459.         prob=${thing#$comp}

  3460.         prob=${prob#:}

  3461.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3462.         echo "prob ${prob:-0.5}"

  3463.         printf '%s\n' $comp

  3464.     done

  3465. }

  3466. 

  3467. do_random(){

  3468.     action=$1

  3469.     shift

  3470.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3471.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3472. }

  3473. 

  3474. for opt do

  3475.     optval="${opt#*=}"

  3476.     case "$opt" in

  3477.         --extra-ldflags=*)

  3478.             add_ldflags $optval

  3479.         ;;

  3480.         --extra-ldexeflags=*)

  3481.             add_ldexeflags $optval

  3482.         ;;

  3483.         --extra-ldlibflags=*)

  3484.             add_ldlibflags $optval

  3485.         ;;

  3486.         --extra-libs=*)

  3487.             add_extralibs $optval

  3488.         ;;

  3489.         --disable-devices)

  3490.             disable $INDEV_LIST $OUTDEV_LIST

  3491.         ;;

  3492.         --enable-debug=*)

  3493.             debuglevel="$optval"

  3494.         ;;

  3495.         --disable-programs)

  3496.             disable $PROGRAM_LIST

  3497.         ;;

  3498.         --disable-everything)

  3499.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3500.         ;;

  3501.         --disable-all)

  3502.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3503.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3504.             enable avutil

  3505.         ;;

  3506.         --enable-random|--disable-random)

  3507.             action=${opt%%-random}

  3508.             do_random ${action#--} $COMPONENT_LIST

  3509.         ;;

  3510.         --enable-random=*|--disable-random=*)

  3511.             action=${opt%%-random=*}

  3512.             do_random ${action#--} $optval

  3513.         ;;

  3514.         --enable-*=*|--disable-*=*)

  3515.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3516.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3517.             eval list=\$$(toupper $thing)_LIST

  3518.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3519.             list=$(filter "$name" $list)

  3520.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3521.             $action $list

  3522.         ;;

  3523.         --enable-yasm|--disable-yasm)

  3524.             warn "The ${opt} option is only provided for compatibility and will be\n"\

  3525.                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."

  3526.             test $opt = --enable-yasm && x86asm=yes || x86asm=no

  3527.         ;;

  3528.         --yasmexe=*)

  3529.             warn "The --yasmexe option is only provided for compatibility and will be\n"\

  3530.                  "removed in the future. Use --x86asmexe instead."

  3531.             x86asmexe="$optval"

  3532.         ;;

  3533.         --enable-?*|--disable-?*)

  3534.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3535.             if is_in $option $COMPONENT_LIST; then

  3536.                 test $action = disable && action=unset

  3537.                 eval $action \$$(toupper ${option%s})_LIST

  3538.             elif is_in $option $CMDLINE_SELECT; then

  3539.                 $action $option

  3540.             else

  3541.                 die_unknown $opt

  3542.             fi

  3543.         ;;

  3544.         --list-*)

  3545.             NAME="${opt#--list-}"

  3546.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3547.             NAME=${NAME%s}

  3548.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3549.         ;;

  3550.         --help|-h) show_help

  3551.         ;;

  3552.         --quiet|-q) quiet=yes

  3553.         ;;

  3554.         --fatal-warnings) enable fatal_warnings

  3555.         ;;

  3556.         --libfuzzer=*)

  3557.             libfuzzer_path="$optval"

  3558.         ;;

  3559.         *)

  3560.             optname="${opt%%=*}"

  3561.             optname="${optname#--}"

  3562.             optname=$(echo "$optname" | sed 's/-/_/g')

  3563.             if is_in $optname $CMDLINE_SET; then

  3564.                 eval $optname='$optval'

  3565.             elif is_in $optname $CMDLINE_APPEND; then

  3566.                 append $optname "$optval"

  3567.             else

  3568.                 die_unknown $opt

  3569.             fi

  3570.         ;;

  3571.     esac

  3572. done

  3573. 

  3574. for e in $env; do

  3575.     eval "export $e"

  3576. done

  3577. 

  3578. # Mark specifically enabled, but normally autodetected libraries as requested.

  3579. for lib in $AUTODETECT_LIBS; do

  3580.     enabled $lib && request $lib

  3581. done

  3582. 

  3583. # Enable platform codecs by default.

  3584. enable_weak audiotoolbox

  3585. 

  3586. # Enable hwaccels by default.

  3587. enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc

  3588. enable_weak xlib

  3589. 

  3590. enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder

  3591. 

  3592. disabled logging && logfile=/dev/null

  3593. 

  3594. die_license_disabled() {

  3595.     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }

  3596. }

  3597. 

  3598. die_license_disabled_gpl() {

  3599.     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }

  3600. }

  3601. 

  3602. map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3603. map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST

  3604. 

  3605. enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST

  3606. map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST

  3607. 

  3608. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  3609. 

  3610. # Disable all the library-specific components if the library itself

  3611. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3612. 

  3613. disable_components(){

  3614.     disabled ${1} && disable $(

  3615.         eval components="\$$(toupper ${1})_COMPONENTS"

  3616.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3617.     )

  3618. }

  3619. 

  3620. map 'disable_components $v' $LIBRARY_LIST

  3621. 

  3622. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3623. set >> $logfile

  3624. 

  3625. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3626. 

  3627. enabled ossfuzz && {

  3628.     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer

  3629.     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp

  3630. }

  3631. 

  3632. case "$toolchain" in

  3633.     *-asan)

  3634.         cc_default="${toolchain%-asan}"

  3635.         add_cflags  -fsanitize=address

  3636.         add_ldflags -fsanitize=address

  3637.     ;;

  3638.     *-msan)

  3639.         cc_default="${toolchain%-msan}"

  3640.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3641.         add_ldflags -fsanitize=memory

  3642.     ;;

  3643.     *-tsan)

  3644.         cc_default="${toolchain%-tsan}"

  3645.         add_cflags  -fsanitize=thread -fPIE

  3646.         add_ldflags -fsanitize=thread -pie

  3647.         case "$toolchain" in

  3648.             gcc-tsan)

  3649.                 add_cflags  -fPIC

  3650.                 add_ldflags -fPIC

  3651.                 ;;

  3652.         esac

  3653.     ;;

  3654.     *-usan)

  3655.         cc_default="${toolchain%-usan}"

  3656.         add_cflags  -fsanitize=undefined

  3657.         add_ldflags -fsanitize=undefined

  3658.     ;;

  3659.     valgrind-*)

  3660.         target_exec_default="valgrind"

  3661.         case "$toolchain" in

  3662.             valgrind-massif)

  3663.                 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"

  3664.                 ;;

  3665.             valgrind-memcheck)

  3666.                 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"

  3667.                 ;;

  3668.         esac

  3669.     ;;

  3670.     msvc)

  3671.         # Check whether the current MSVC version needs the C99 converter.

  3672.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3673.         # support enough of C99 to build ffmpeg. Default to the new

  3674.         # behaviour if the regexp was unable to match anything, since this

  3675.         # successfully parses the version number of existing supported

  3676.         # versions that require the converter (MSVC 2010 and 2012).

  3677.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3678.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3679.             cc_default="cl"

  3680.             cxx_default="cl"

  3681.         else

  3682.             cc_default="c99wrap cl"

  3683.             cxx_default="c99wrap cl"

  3684.         fi

  3685.         ld_default="$source_path/compat/windows/mslink"

  3686.         nm_default="dumpbin -symbols"

  3687.         ar_default="lib"

  3688.         case "$arch" in

  3689.         arm*)

  3690.             as_default="armasm"

  3691.             ;;

  3692.         esac

  3693.         target_os_default="win32"

  3694.         # Use a relative path for TMPDIR. This makes sure all the

  3695.         # ffconf temp files are written with a relative path, avoiding

  3696.         # issues with msys/win32 path conversion for MSVC parameters

  3697.         # such as -Fo<file> or -out:<file>.

  3698.         TMPDIR=.

  3699.     ;;

  3700.     icl)

  3701.         cc_default="icl"

  3702.         ld_default="xilink"

  3703.         nm_default="dumpbin -symbols"

  3704.         ar_default="xilib"

  3705.         target_os_default="win32"

  3706.         TMPDIR=.

  3707.     ;;

  3708.     gcov)

  3709.         add_cflags  -fprofile-arcs -ftest-coverage

  3710.         add_ldflags -fprofile-arcs -ftest-coverage

  3711.     ;;

  3712.     llvm-cov)

  3713.         add_cflags -fprofile-arcs -ftest-coverage

  3714.         add_ldflags --coverage

  3715.     ;;

  3716.     hardened)

  3717.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3718.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3719.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3720.         add_cflags   -fPIE

  3721.         add_ldexeflags -fPIE -pie

  3722.     ;;

  3723.     ?*)

  3724.         die "Unknown toolchain $toolchain"

  3725.     ;;

  3726. esac

  3727. 

  3728. test -n "$cross_prefix" && enable cross_compile

  3729. 

  3730. if enabled cross_compile; then

  3731.     test -n "$arch" && test -n "$target_os" ||

  3732.         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"

  3733. fi

  3734. 

  3735. ar_default="${cross_prefix}${ar_default}"

  3736. cc_default="${cross_prefix}${cc_default}"

  3737. cxx_default="${cross_prefix}${cxx_default}"

  3738. nm_default="${cross_prefix}${nm_default}"

  3739. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3740. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3741.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3742. else

  3743.     ranlib_default="${cross_prefix}${ranlib_default}"

  3744. fi

  3745. strip_default="${cross_prefix}${strip_default}"

  3746. windres_default="${cross_prefix}${windres_default}"

  3747. 

  3748. sysinclude_default="${sysroot}/usr/include"

  3749. 

  3750. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3751.     target_exec target_os x86asmexe nvcc

  3752. enabled cross_compile || host_cc_default=$cc

  3753. set_default host_cc

  3754. 

  3755. pkg_config_fail_message=""

  3756. if ! $pkg_config --version >/dev/null 2>&1; then

  3757.     warn "$pkg_config not found, library detection may fail."

  3758.     pkg_config=false

  3759. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3760.     pkg_config_fail_message="

  3761. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3762. fi

  3763. 

  3764. if test $doxygen != $doxygen_default && \

  3765.   ! $doxygen --version >/dev/null 2>&1; then

  3766.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3767. fi

  3768. 

  3769. exesuf() {

  3770.     case $1 in

  3771.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3772.     esac

  3773. }

  3774. 

  3775. EXESUF=$(exesuf $target_os)

  3776. HOSTEXESUF=$(exesuf $host_os)

  3777. 

  3778. # set temporary file name

  3779. : ${TMPDIR:=$TEMPDIR}

  3780. : ${TMPDIR:=$TMP}

  3781. : ${TMPDIR:=/tmp}

  3782. 

  3783. if [ -n "$tempprefix" ] ; then

  3784.     mktemp(){

  3785.         tmpname="$tempprefix.${HOSTNAME}.${UID}"

  3786.         echo "$tmpname"

  3787.         mkdir "$tmpname"

  3788.     }

  3789. elif ! check_cmd mktemp -u XXXXXX; then

  3790.     # simple replacement for missing mktemp

  3791.     # NOT SAFE FOR GENERAL USE

  3792.     mktemp(){

  3793.         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3794.         echo "$tmpname"

  3795.         mkdir "$tmpname"

  3796.     }

  3797. fi

  3798. 

  3799. FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||

  3800.     die "Unable to create temporary directory in $TMPDIR."

  3801. 

  3802. tmpfile(){

  3803.     tmp="${FFTMPDIR}/test"$2

  3804.     (set -C; exec > $tmp) 2> /dev/null ||

  3805.         die "Unable to create temporary file in $FFTMPDIR."

  3806.     eval $1=$tmp

  3807. }

  3808. 

  3809. trap 'rm -rf -- "$FFTMPDIR"' EXIT

  3810. trap 'exit 2' INT

  3811. 

  3812. tmpfile TMPASM .asm

  3813. tmpfile TMPC   .c

  3814. tmpfile TMPCPP .cpp

  3815. tmpfile TMPE   $EXESUF

  3816. tmpfile TMPH   .h

  3817. tmpfile TMPM   .m

  3818. tmpfile TMPO   .o

  3819. tmpfile TMPS   .S

  3820. tmpfile TMPSH  .sh

  3821. tmpfile TMPV   .ver

  3822. 

  3823. unset -f mktemp

  3824. 

  3825. chmod +x $TMPE

  3826. 

  3827. # make sure we can execute files in $TMPDIR

  3828. cat > $TMPSH 2>> $logfile <<EOF

  3829. #! /bin/sh

  3830. EOF

  3831. chmod +x $TMPSH >> $logfile 2>&1

  3832. if ! $TMPSH >> $logfile 2>&1; then

  3833.     cat <<EOF

  3834. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3835. variable to another directory and make sure that it is not mounted noexec.

  3836. EOF

  3837.     die "Sanity test failed."

  3838. fi

  3839. 

  3840. armasm_flags(){

  3841.     for flag; do

  3842.         case $flag in

  3843.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3844.             # be passed to gas-preprocessor

  3845.             -M[TD]*)                                            ;;

  3846.             *)                  echo $flag                      ;;

  3847.         esac

  3848.    done

  3849. }

  3850. 

  3851. ccc_flags(){

  3852.     for flag; do

  3853.         case $flag in

  3854.             -std=c99)           echo -c99                       ;;

  3855.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3856.             -mieee)             echo -ieee                      ;;

  3857.             -O*|-fast)          echo $flag                      ;;

  3858.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3859.             -g)                 echo -g3                        ;;

  3860.             -Wall)              echo -msg_enable level2         ;;

  3861.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3862.             -Wl,*)              echo $flag                      ;;

  3863.             -f*|-W*)                                            ;;

  3864.             *)                  echo $flag                      ;;

  3865.         esac

  3866.    done

  3867. }

  3868. 

  3869. cparser_flags(){

  3870.     for flag; do

  3871.         case $flag in

  3872.             -Wno-switch)             echo -Wno-switch-enum ;;

  3873.             -Wno-format-zero-length) ;;

  3874.             -Wdisabled-optimization) ;;

  3875.             -Wno-pointer-sign)       echo -Wno-other ;;

  3876.             *)                       echo $flag ;;

  3877.         esac

  3878.     done

  3879. }

  3880. 

  3881. msvc_common_flags(){

  3882.     for flag; do

  3883.         case $flag in

  3884.             # In addition to specifying certain flags under the compiler

  3885.             # specific filters, they must be specified here as well or else the

  3886.             # generic catch all at the bottom will print the original flag.

  3887.             -Wall)                ;;

  3888.             -Wextra)              ;;

  3889.             -std=c99)             ;;

  3890.             # Common flags

  3891.             -fomit-frame-pointer) ;;

  3892.             -g)                   echo -Z7 ;;

  3893.             -fno-math-errno)      ;;

  3894.             -fno-common)          ;;

  3895.             -fno-signed-zeros)    ;;

  3896.             -fPIC)                ;;

  3897.             -mthumb)              ;;

  3898.             -march=*)             ;;

  3899.             -lz)                  echo zlib.lib ;;

  3900.             -lx264)               echo libx264.lib ;;

  3901.             -lstdc++)             ;;

  3902.             -l*)                  echo ${flag#-l}.lib ;;

  3903.             -LARGEADDRESSAWARE)   echo $flag ;;

  3904.             -L*)                  echo -libpath:${flag#-L} ;;

  3905.             *)                    echo $flag ;;

  3906.         esac

  3907.     done

  3908. }

  3909. 

  3910. msvc_flags(){

  3911.     msvc_common_flags "$@"

  3912.     for flag; do

  3913.         case $flag in

  3914.             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \

  3915.                                        -wd4554 ;;

  3916.             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3917.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3918.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3919.                                        -wd4307 \

  3920.                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;

  3921.         esac

  3922.     done

  3923. }

  3924. 

  3925. icl_flags(){

  3926.     msvc_common_flags "$@"

  3927.     for flag; do

  3928.         case $flag in

  3929.             # Despite what Intel's documentation says -Wall, which is supported

  3930.             # on Windows, does enable remarks so disable them here.

  3931.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3932.             -std=c99)             echo -Qstd=c99 ;;

  3933.             -flto)                echo -ipo ;;

  3934.         esac

  3935.     done

  3936. }

  3937. 

  3938. icc_flags(){

  3939.     for flag; do

  3940.         case $flag in

  3941.             -flto)                echo -ipo ;;

  3942.             *)                    echo $flag ;;

  3943.         esac

  3944.     done

  3945. }

  3946. 

  3947. pgi_flags(){

  3948.     for flag; do

  3949.         case $flag in

  3950.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3951.             -fomit-frame-pointer) echo -Mnoframe ;;

  3952.             -g)                   echo -gopt ;;

  3953.             *)                    echo $flag ;;

  3954.         esac

  3955.     done

  3956. }

  3957. 

  3958. suncc_flags(){

  3959.     for flag; do

  3960.         case $flag in

  3961.             -march=*|-mcpu=*)

  3962.                 case "${flag#*=}" in

  3963.                     native)                   echo -xtarget=native       ;;

  3964.                     v9|niagara)               echo -xarch=sparc          ;;

  3965.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3966.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3967.                     i586|pentium)             echo -xchip=pentium        ;;

  3968.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3969.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3970.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3971.                     pentium4*)          echo -xtarget=pentium4           ;;

  3972.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3973.                     *-sse3)             echo -xarch=sse3                 ;;

  3974.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3975.                     bonnell)                   echo -xarch=ssse3         ;;

  3976.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3977.                     westmere)                  echo -xtarget=westmere    ;;

  3978.                     silvermont)                echo -xarch=sse4_2        ;;

  3979.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3980.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  3981.                                                echo -xarch=avx           ;;

  3982.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3983.                     btver1)                    echo -xarch=amdsse4a      ;;

  3984.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  3985.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3986.                     k8|opteron|athlon64|athlon-fx)

  3987.                                                echo -xarch=sse2a         ;;

  3988.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3989.                 esac

  3990.                 ;;

  3991.             -std=c99)             echo -xc99              ;;

  3992.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3993.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3994.             -W*,*)                echo $flag              ;;

  3995.             -f*-*|-W*|-mimpure-text)                      ;;

  3996.             -shared)              echo -G                 ;;

  3997.             *)                    echo $flag              ;;

  3998.         esac

  3999.     done

  4000. }

  4001. 

  4002. tms470_flags(){

  4003.     for flag; do

  4004.         case $flag in

  4005.             -march=*|-mcpu=*)

  4006.                 case "${flag#*=}" in

  4007.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  4008.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  4009.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  4010.                     armv6*|arm11*)          echo -mv=6   ;;

  4011.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  4012.                                             echo -mv=5e  ;;

  4013.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  4014.                 esac

  4015.                 ;;

  4016.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  4017.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  4018.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  4019.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  4020.             -msoft-float)   echo --float_support=vfplib       ;;

  4021.             -O[0-3]|-mf=*)  echo $flag                        ;;

  4022.             -g)             echo -g -mn                       ;;

  4023.             -pds=*)         echo $flag                        ;;

  4024.             -D*|-I*)        echo $flag                        ;;

  4025.             --gcc|--abi=*)  echo $flag                        ;;

  4026.             -me)            echo $flag                        ;;

  4027.         esac

  4028.     done

  4029. }

  4030. 

  4031. probe_cc(){

  4032.     pfx=$1

  4033.     _cc=$2

  4034.     first=$3

  4035. 

  4036.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  4037.     unset _ld_o _ldflags _ld_lib _ld_path

  4038.     unset _depflags _DEPCMD _DEPFLAGS

  4039.     _flags_filter=echo

  4040. 

  4041.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  4042.         true # no-op to avoid reading stdin in following checks

  4043.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  4044.         _type=llvm_gcc

  4045.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  4046.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  4047.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4048.         _cflags_speed='-O3'

  4049.         _cflags_size='-Os'

  4050.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  4051.         _type=gcc

  4052.         gcc_version=$($_cc --version | head -n1)

  4053.         gcc_basever=$($_cc -dumpversion)

  4054.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  4055.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  4056.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  4057.         case $gcc_basever in

  4058.             2) ;;

  4059.             2.*) ;;

  4060.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  4061.         esac

  4062.         if [ "$first" = true ]; then

  4063.             case $gcc_basever in

  4064.                 4.2*)

  4065.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  4066.             esac

  4067.         fi

  4068.         _cflags_speed='-O3'

  4069.         _cflags_size='-Os'

  4070.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  4071.         _type=icc

  4072.         _ident=$($_cc --version | head -n1)

  4073.         _depflags='-MMD'

  4074.         _cflags_speed='-O3'

  4075.         _cflags_size='-Os'

  4076.         _cflags_noopt='-O1'

  4077.         _flags_filter=icc_flags

  4078.     elif $_cc -v 2>&1 | grep -q xlc; then

  4079.         _type=xlc

  4080.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  4081.         _cflags_speed='-O5'

  4082.         _cflags_size='-O5 -qcompact'

  4083.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  4084.         _type=ccc

  4085.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  4086.         _DEPFLAGS='-M'

  4087.         _cflags_speed='-fast'

  4088.         _cflags_size='-O1'

  4089.         _flags_filter=ccc_flags

  4090.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  4091.         test -d "$sysroot" || die "No valid sysroot specified."

  4092.         _type=armcc

  4093.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  4094.         armcc_conf="$PWD/armcc.conf"

  4095.         $_cc --arm_linux_configure                 \

  4096.              --arm_linux_config_file="$armcc_conf" \

  4097.              --configure_sysroot="$sysroot"        \

  4098.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  4099.              die "Error creating armcc configuration file."

  4100.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  4101.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  4102.         as_default="${cross_prefix}gcc"

  4103.         _depflags='-MMD'

  4104.         _cflags_speed='-O3'

  4105.         _cflags_size='-Os'

  4106.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  4107.         _type=tms470

  4108.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  4109.         _flags='--gcc --abi=eabi -me'

  4110.         _cc_e='-ppl -fe=$@'

  4111.         _cc_o='-fe=$@'

  4112.         _depflags='-ppa -ppd=$(@:.o=.d)'

  4113.         _cflags_speed='-O3 -mf=5'

  4114.         _cflags_size='-O3 -mf=2'

  4115.         _flags_filter=tms470_flags

  4116.     elif $_cc -v 2>&1 | grep -q clang; then

  4117.         _type=clang

  4118.         _ident=$($_cc --version 2>/dev/null | head -n1)

  4119.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4120.         _cflags_speed='-O3'

  4121.         _cflags_size='-Oz'

  4122.     elif $_cc -V 2>&1 | grep -q Sun; then

  4123.         _type=suncc

  4124.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  4125.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  4126.         _DEPFLAGS='-xM1 -xc99'

  4127.         _ldflags='-std=c99'

  4128.         _cflags_speed='-O5'

  4129.         _cflags_size='-O5 -xspace'

  4130.         _flags_filter=suncc_flags

  4131.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  4132.         _type=pathscale

  4133.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4134.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4135.         _cflags_speed='-O2'

  4136.         _cflags_size='-Os'

  4137.         _flags_filter='filter_out -Wdisabled-optimization'

  4138.     elif $_cc -v 2>&1 | grep -q Open64; then

  4139.         _type=open64

  4140.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  4141.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  4142.         _cflags_speed='-O2'

  4143.         _cflags_size='-Os'

  4144.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  4145.     elif $_cc -V 2>&1 | grep -q Portland; then

  4146.         _type=pgi

  4147.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  4148.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4149.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4150.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4151.         _cflags_noopt="-O"

  4152.         _flags_filter=pgi_flags

  4153.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4154.         _type=armasm

  4155.         _ident=$($_cc | head -n1)

  4156.         # 4509: "This form of conditional instruction is deprecated"

  4157.         _flags="-nologo -ignore 4509"

  4158.         _flags_filter=armasm_flags

  4159.     elif $_cc 2>&1 | grep -q Intel; then

  4160.         _type=icl

  4161.         _ident=$($_cc 2>&1 | head -n1)

  4162.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4163.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4164.         # versions (tested) as well.

  4165.         _cflags_speed="-O2"

  4166.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4167.         if $_cc 2>&1 | grep -q Linker; then

  4168.             _ld_o='-out:$@'

  4169.         else

  4170.             _ld_o='-Fe$@'

  4171.         fi

  4172.         _cc_o='-Fo$@'

  4173.         _cc_e='-P'

  4174.         _flags_filter=icl_flags

  4175.         _ld_lib='lib%.a'

  4176.         _ld_path='-libpath:'

  4177.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4178.         _flags='-nologo -Qdiag-error:4044,10157'

  4179.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4180.         # with MSVC which enables it by default.

  4181.         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4182.         disable stripping

  4183.     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then

  4184.         # lld can emulate multiple different linkers; in ms link.exe mode,

  4185.         # the -? parameter gives the help output which contains an identifyable

  4186.         # string, while it gives an error in other modes.

  4187.         _type=lld-link

  4188.         # The link.exe mode doesn't have a switch for getting the version,

  4189.         # but we can force it back to gnu mode and get the version from there.

  4190.         _ident=$($_cc -flavor gnu --version 2>/dev/null)

  4191.         _ld_o='-out:$@'

  4192.         _flags_filter=msvc_flags

  4193.         _ld_lib='lib%.a'

  4194.         _ld_path='-libpath:'

  4195.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4196.         _type=msvc

  4197.         _ident=$($_cc 2>&1 | head -n1)

  4198.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4199.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4200.         _cflags_speed="-O2"

  4201.         _cflags_size="-O1"

  4202.         _cflags_noopt="-O1"

  4203.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4204.             _ld_o='-out:$@'

  4205.         else

  4206.             _ld_o='-Fe$@'

  4207.         fi

  4208.         _cc_o='-Fo$@'

  4209.         _cc_e='-P -Fi$@'

  4210.         _flags_filter=msvc_flags

  4211.         _ld_lib='lib%.a'

  4212.         _ld_path='-libpath:'

  4213.         _flags='-nologo'

  4214.         disable stripping

  4215.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4216.         _type=cparser

  4217.         _ident=$($_cc --version | head -n1)

  4218.         _depflags='-MMD'

  4219.         _cflags_speed='-O4'

  4220.         _cflags_size='-O2'

  4221.         _flags_filter=cparser_flags

  4222.     fi

  4223. 

  4224.     eval ${pfx}_type=\$_type

  4225.     eval ${pfx}_ident=\$_ident

  4226. }

  4227. 

  4228. set_ccvars(){

  4229.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4230.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4231.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4232. 

  4233.     if [ -n "$_depflags" ]; then

  4234.         eval ${1}_DEPFLAGS=\$_depflags

  4235.     else

  4236.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4237.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4238.         eval DEP${1}FLAGS=\$_flags

  4239.     fi

  4240. }

  4241. 

  4242. probe_cc cc "$cc" "true"

  4243. cflags_filter=$_flags_filter

  4244. cflags_speed=$_cflags_speed

  4245. cflags_size=$_cflags_size

  4246. cflags_noopt=$_cflags_noopt

  4247. add_cflags $_flags $_cflags

  4248. cc_ldflags=$_ldflags

  4249. set_ccvars CC

  4250. set_ccvars CXX

  4251. 

  4252. probe_cc hostcc "$host_cc"

  4253. host_cflags_filter=$_flags_filter

  4254. host_cflags_speed=$_cflags_speed

  4255. add_host_cflags  $_flags $_cflags

  4256. set_ccvars HOSTCC

  4257. 

  4258. test -n "$cc_type" && enable $cc_type ||

  4259.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4260. 

  4261. : ${as_default:=$cc}

  4262. : ${objcc_default:=$cc}

  4263. : ${dep_cc_default:=$cc}

  4264. : ${ld_default:=$cc}

  4265. : ${host_ld_default:=$host_cc}

  4266. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4267. 

  4268. probe_cc as "$as"

  4269. asflags_filter=$_flags_filter

  4270. add_asflags $_flags $_cflags

  4271. set_ccvars AS

  4272. 

  4273. probe_cc objcc "$objcc"

  4274. objcflags_filter=$_flags_filter

  4275. add_objcflags $_flags $_cflags

  4276. set_ccvars OBJC

  4277. 

  4278. probe_cc ld "$ld"

  4279. ldflags_filter=$_flags_filter

  4280. add_ldflags $_flags $_ldflags

  4281. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4282. LD_O=${_ld_o-$LD_O}

  4283. LD_LIB=${_ld_lib-$LD_LIB}

  4284. LD_PATH=${_ld_path-$LD_PATH}

  4285. 

  4286. probe_cc hostld "$host_ld"

  4287. host_ldflags_filter=$_flags_filter

  4288. add_host_ldflags $_flags $_ldflags

  4289. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4290. 

  4291. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4292.     probe_cc depcc "$dep_cc"

  4293.     CCDEP=${_DEPCMD:-$DEPCMD}

  4294.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4295.     DEPCCFLAGS=$_flags

  4296. fi

  4297. 

  4298. if $ar 2>&1 | grep -q Microsoft; then

  4299.     arflags="-nologo"

  4300.     ar_o='-out:$@'

  4301. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4302.     arflags="rq"

  4303.     ar_o='$@'

  4304. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4305.     arflags='-Xany -r -c'

  4306.     ar_o='$@'

  4307. elif $ar 2>&1 | grep -q "\[D\] "; then

  4308.     arflags="rcD"

  4309.     ar_o='$@'

  4310. else

  4311.     arflags="rc"

  4312.     ar_o='$@'

  4313. fi

  4314. 

  4315. add_cflags $extra_cflags

  4316. add_cxxflags $extra_cxxflags

  4317. add_objcflags $extra_objcflags

  4318. add_asflags $extra_cflags

  4319. 

  4320. if test -n "$sysroot"; then

  4321.     case "$cc_type" in

  4322.         gcc|llvm_gcc|clang)

  4323.             add_cppflags --sysroot="$sysroot"

  4324.             add_ldflags --sysroot="$sysroot"

  4325. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4326.             add_cppflags -isysroot "$sysroot"

  4327.             add_ldflags -isysroot "$sysroot"

  4328.         ;;

  4329.         tms470)

  4330.             add_cppflags -I"$sysinclude"

  4331.             add_ldflags  --sysroot="$sysroot"

  4332.         ;;

  4333.     esac

  4334. fi

  4335. 

  4336. if test "$cpu" = host; then

  4337.     enabled cross_compile &&

  4338.         die "--cpu=host makes no sense when cross-compiling."

  4339. 

  4340.     case "$cc_type" in

  4341.         gcc|llvm_gcc)

  4342.             check_native(){

  4343.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4344.                 sed -n "/cc1.*$1=/{

  4345.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4346.                             p

  4347.                             q

  4348.                         }" $TMPE

  4349.             }

  4350.             cpu=$(check_native -march || check_native -mcpu)

  4351.         ;;

  4352.         clang)

  4353.             check_native(){

  4354.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4355.                 sed -n "/cc1.*-target-cpu /{

  4356.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4357.                             p

  4358.                             q

  4359.                         }" $TMPE

  4360.             }

  4361.             cpu=$(check_native -march)

  4362.         ;;

  4363.     esac

  4364. 

  4365.     test "${cpu:-host}" = host &&

  4366.         die "--cpu=host not supported with compiler $cc"

  4367. fi

  4368. 

  4369. # Deal with common $arch aliases

  4370. case "$arch" in

  4371.     aarch64|arm64)

  4372.         arch="aarch64"

  4373.     ;;

  4374.     arm*|iPad*|iPhone*)

  4375.         arch="arm"

  4376.     ;;

  4377.     mips*|IP*)

  4378.         case "$arch" in

  4379.         *el)

  4380.             add_cppflags -EL

  4381.             add_ldflags -EL

  4382.         ;;

  4383.         *eb)

  4384.             add_cppflags -EB

  4385.             add_ldflags -EB

  4386.         ;;

  4387.         esac

  4388.         arch="mips"

  4389.     ;;

  4390.     parisc*|hppa*)

  4391.         arch="parisc"

  4392.     ;;

  4393.     "Power Macintosh"|ppc*|powerpc*)

  4394.         arch="ppc"

  4395.     ;;

  4396.     s390|s390x)

  4397.         arch="s390"

  4398.     ;;

  4399.     sh4|sh)

  4400.         arch="sh4"

  4401.     ;;

  4402.     sun4*|sparc*)

  4403.         arch="sparc"

  4404.     ;;

  4405.     tilegx|tile-gx)

  4406.         arch="tilegx"

  4407.     ;;

  4408.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4409.         arch="x86"

  4410.     ;;

  4411. esac

  4412. 

  4413. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4414. enable $arch

  4415. 

  4416. # Add processor-specific flags

  4417. if enabled aarch64; then

  4418. 

  4419.     case $cpu in

  4420.         armv*)

  4421.             cpuflags="-march=$cpu"

  4422.         ;;

  4423.         *)

  4424.             cpuflags="-mcpu=$cpu"

  4425.         ;;

  4426.     esac

  4427. 

  4428. elif enabled alpha; then

  4429. 

  4430.     cpuflags="-mcpu=$cpu"

  4431. 

  4432. elif enabled arm; then

  4433. 

  4434.     check_arm_arch() {

  4435.         check_cpp_condition stddef.h \

  4436.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4437.             $cpuflags

  4438.     }

  4439. 

  4440.     probe_arm_arch() {

  4441.         if   check_arm_arch 4;        then echo armv4

  4442.         elif check_arm_arch 4T;       then echo armv4t

  4443.         elif check_arm_arch 5;        then echo armv5

  4444.         elif check_arm_arch 5E;       then echo armv5e

  4445.         elif check_arm_arch 5T;       then echo armv5t

  4446.         elif check_arm_arch 5TE;      then echo armv5te

  4447.         elif check_arm_arch 5TEJ;     then echo armv5te

  4448.         elif check_arm_arch 6;        then echo armv6

  4449.         elif check_arm_arch 6J;       then echo armv6j

  4450.         elif check_arm_arch 6K;       then echo armv6k

  4451.         elif check_arm_arch 6Z;       then echo armv6z

  4452.         elif check_arm_arch 6ZK;      then echo armv6zk

  4453.         elif check_arm_arch 6T2;      then echo armv6t2

  4454.         elif check_arm_arch 7;        then echo armv7

  4455.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4456.         elif check_arm_arch 7S;       then echo armv7-a

  4457.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4458.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4459.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4460.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4461.         fi

  4462.     }

  4463. 

  4464.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4465. 

  4466.     case $cpu in

  4467.         armv*)

  4468.             cpuflags="-march=$cpu"

  4469.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4470.         ;;

  4471.         *)

  4472.             cpuflags="-mcpu=$cpu"

  4473.             case $cpu in

  4474.                 cortex-a*)                               subarch=armv7a  ;;

  4475.                 cortex-r*)                               subarch=armv7r  ;;

  4476.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4477.                 arm11*)                                  subarch=armv6   ;;

  4478.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4479.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4480.                 *)                             subarch=$(probe_arm_arch) ;;

  4481.             esac

  4482.         ;;

  4483.     esac

  4484. 

  4485.     case "$subarch" in

  4486.         armv5t*)    enable fast_clz                ;;

  4487.         armv[6-8]*)

  4488.             enable fast_clz

  4489.             disabled fast_unaligned || enable fast_unaligned

  4490.             ;;

  4491.     esac

  4492. 

  4493. elif enabled avr32; then

  4494. 

  4495.     case $cpu in

  4496.         ap7[02]0[0-2])

  4497.             subarch="avr32_ap"

  4498.             cpuflags="-mpart=$cpu"

  4499.         ;;

  4500.         ap)

  4501.             subarch="avr32_ap"

  4502.             cpuflags="-march=$cpu"

  4503.         ;;

  4504.         uc3[ab]*)

  4505.             subarch="avr32_uc"

  4506.             cpuflags="-mcpu=$cpu"

  4507.         ;;

  4508.         uc)

  4509.             subarch="avr32_uc"

  4510.             cpuflags="-march=$cpu"

  4511.         ;;

  4512.     esac

  4513. 

  4514. elif enabled bfin; then

  4515. 

  4516.     cpuflags="-mcpu=$cpu"

  4517. 

  4518. elif enabled mips; then

  4519. 

  4520.     cpuflags="-march=$cpu"

  4521. 

  4522.     if [ "$cpu" != "generic" ]; then

  4523.         disable mips32r2

  4524.         disable mips32r5

  4525.         disable mips64r2

  4526.         disable mips32r6

  4527.         disable mips64r6

  4528.         disable loongson2

  4529.         disable loongson3

  4530. 

  4531.         case $cpu in

  4532.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4533.                 enable mips32r2

  4534.                 disable msa

  4535.             ;;

  4536.             p5600|i6400|p6600)

  4537.                 disable mipsdsp

  4538.                 disable mipsdspr2

  4539.             ;;

  4540.             loongson*)

  4541.                 enable loongson2

  4542.                 enable loongson3

  4543.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4544.                 enable simd_align_16

  4545.                 enable fast_64bit

  4546.                 enable fast_clz

  4547.                 enable fast_cmov

  4548.                 enable fast_unaligned

  4549.                 disable aligned_stack

  4550.                 disable mipsfpu

  4551.                 disable mipsdsp

  4552.                 disable mipsdspr2

  4553.                 case $cpu in

  4554.                     loongson3*)

  4555.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4556.                     ;;

  4557.                     loongson2e)

  4558.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4559.                     ;;

  4560.                     loongson2f)

  4561.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4562.                     ;;

  4563.                 esac

  4564.             ;;

  4565.             *)

  4566.                 # Unknown CPU. Disable everything.

  4567.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4568.                 disable mipsfpu

  4569.                 disable mipsdsp

  4570.                 disable mipsdspr2

  4571.                 disable msa

  4572.                 disable mmi

  4573.             ;;

  4574.         esac

  4575. 

  4576.         case $cpu in

  4577.             24kc)

  4578.                 disable mipsfpu

  4579.                 disable mipsdsp

  4580.                 disable mipsdspr2

  4581.             ;;

  4582.             24kf*)

  4583.                 disable mipsdsp

  4584.                 disable mipsdspr2

  4585.             ;;

  4586.             24kec|34kc|1004kc)

  4587.                 disable mipsfpu

  4588.                 disable mipsdspr2

  4589.             ;;

  4590.             24kef*|34kf*|1004kf*)

  4591.                 disable mipsdspr2

  4592.             ;;

  4593.             74kc)

  4594.                 disable mipsfpu

  4595.             ;;

  4596.             p5600)

  4597.                 enable mips32r5

  4598.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4599.             ;;

  4600.             i6400)

  4601.                 enable mips64r6

  4602.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4603.             ;;

  4604.             p6600)

  4605.                 enable mips64r6

  4606.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4607.             ;;

  4608.         esac

  4609.     else

  4610.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4611.         warn 'generic cpu selected'

  4612.     fi

  4613. 

  4614. elif enabled ppc; then

  4615. 

  4616.     disable ldbrx

  4617. 

  4618.     case $(tolower $cpu) in

  4619.         601|ppc601|powerpc601)

  4620.             cpuflags="-mcpu=601"

  4621.             disable altivec

  4622.         ;;

  4623.         603*|ppc603*|powerpc603*)

  4624.             cpuflags="-mcpu=603"

  4625.             disable altivec

  4626.         ;;

  4627.         604*|ppc604*|powerpc604*)

  4628.             cpuflags="-mcpu=604"

  4629.             disable altivec

  4630.         ;;

  4631.         g3|75*|ppc75*|powerpc75*)

  4632.             cpuflags="-mcpu=750"

  4633.             disable altivec

  4634.         ;;

  4635.         g4|745*|ppc745*|powerpc745*)

  4636.             cpuflags="-mcpu=7450"

  4637.             disable vsx

  4638.         ;;

  4639.         74*|ppc74*|powerpc74*)

  4640.             cpuflags="-mcpu=7400"

  4641.             disable vsx

  4642.         ;;

  4643.         g5|970|ppc970|powerpc970)

  4644.             cpuflags="-mcpu=970"

  4645.             disable vsx

  4646.         ;;

  4647.         power[3-6]*)

  4648.             cpuflags="-mcpu=$cpu"

  4649.             disable vsx

  4650.         ;;

  4651.         power[7-8]*)

  4652.             cpuflags="-mcpu=$cpu"

  4653.         ;;

  4654.         cell)

  4655.             cpuflags="-mcpu=cell"

  4656.             enable ldbrx

  4657.             disable vsx

  4658.         ;;

  4659.         e500mc)

  4660.             cpuflags="-mcpu=e500mc"

  4661.             disable altivec

  4662.         ;;

  4663.         e500v2)

  4664.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4665.             disable altivec

  4666.             disable dcbzl

  4667.         ;;

  4668.         e500)

  4669.             cpuflags="-mcpu=8540 -mhard-float"

  4670.             disable altivec

  4671.             disable dcbzl

  4672.         ;;

  4673.     esac

  4674. 

  4675. elif enabled sparc; then

  4676. 

  4677.     case $cpu in

  4678.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4679.             cpuflags="-mcpu=$cpu"

  4680.         ;;

  4681.         ultrasparc*|niagara[234])

  4682.             cpuflags="-mcpu=$cpu"

  4683.         ;;

  4684.     esac

  4685. 

  4686. elif enabled x86; then

  4687. 

  4688.     case $cpu in

  4689.         i[345]86|pentium)

  4690.             cpuflags="-march=$cpu"

  4691.             disable i686

  4692.             disable mmx

  4693.         ;;

  4694.         # targets that do NOT support nopl and conditional mov (cmov)

  4695.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4696.             cpuflags="-march=$cpu"

  4697.             disable i686

  4698.         ;;

  4699.         # targets that do support nopl and conditional mov (cmov)

  4700.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4701.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4702.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4703.             cpuflags="-march=$cpu"

  4704.             enable i686

  4705.             enable fast_cmov

  4706.         ;;

  4707.         # targets that do support conditional mov but on which it's slow

  4708.         pentium4|pentium4m|prescott|nocona)

  4709.             cpuflags="-march=$cpu"

  4710.             enable i686

  4711.             disable fast_cmov

  4712.         ;;

  4713.     esac

  4714. 

  4715. fi

  4716. 

  4717. if [ "$cpu" != generic ]; then

  4718.     add_cflags  $cpuflags

  4719.     add_asflags $cpuflags

  4720.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4721. fi

  4722. 

  4723. # compiler sanity check

  4724. check_exec <<EOF

  4725. int main(void){ return 0; }

  4726. EOF

  4727. if test "$?" != 0; then

  4728.     echo "$cc is unable to create an executable file."

  4729.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4730.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4731.         echo "Only do this if you know what cross compiling means."

  4732.     fi

  4733.     die "C compiler test failed."

  4734. fi

  4735. 

  4736. add_cppflags -D_ISOC99_SOURCE

  4737. add_cxxflags -D__STDC_CONSTANT_MACROS

  4738. check_cxxflags -std=c++11 || check_cxxflags -std=c++0x

  4739. 

  4740. # some compilers silently accept -std=c11, so we also need to check that the

  4741. # version macro is defined properly

  4742. if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then

  4743.     add_cflags -std=c11

  4744. else

  4745.     check_cflags -std=c99

  4746. fi

  4747. 

  4748. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4749. #include <stdlib.h>

  4750. EOF

  4751. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4752. #include <stdlib.h>

  4753. EOF

  4754. 

  4755. add_host_cppflags -D_ISOC99_SOURCE

  4756. check_host_cflags -std=c99

  4757. check_host_cflags -Wall

  4758. check_host_cflags $host_cflags_speed

  4759. 

  4760. check_64bit(){

  4761.     arch32=$1

  4762.     arch64=$2

  4763.     expr=$3

  4764.     check_code cc "" "int test[2*($expr) - 1]" &&

  4765.         subarch=$arch64 || subarch=$arch32

  4766. }

  4767. 

  4768. case "$arch" in

  4769.     aarch64|alpha|ia64)

  4770.         spic=$shared

  4771.     ;;

  4772.     mips)

  4773.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4774.         spic=$shared

  4775.     ;;

  4776.     parisc)

  4777.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4778.         spic=$shared

  4779.     ;;

  4780.     ppc)

  4781.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4782.         spic=$shared

  4783.     ;;

  4784.     s390)

  4785.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4786.         spic=$shared

  4787.     ;;

  4788.     sparc)

  4789.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4790.         spic=$shared

  4791.     ;;

  4792.     x86)

  4793.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4794.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4795.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4796.             subarch=x86_64

  4797.         if test "$subarch" = "x86_64"; then

  4798.             spic=$shared

  4799.         fi

  4800.     ;;

  4801.     ppc)

  4802.         check_cc <<EOF && subarch="ppc64"

  4803.         int test[(int)sizeof(char*) - 7];

  4804. EOF

  4805.     ;;

  4806. esac

  4807. 

  4808. enable $subarch

  4809. enabled spic && enable_weak pic

  4810. 

  4811. enabled x86_64 && objformat=elf64 || objformat="elf32"

  4812. 

  4813. # OS specific

  4814. case $target_os in

  4815.     aix)

  4816.         SHFLAGS=-shared

  4817.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4818.         enabled shared && add_ldflags -Wl,-brtl

  4819.         ;;

  4820.     android)

  4821.         disable symver

  4822.         enable section_data_rel_ro

  4823.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4824.         SLIB_INSTALL_LINKS=

  4825.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4826.         ;;

  4827.     haiku)

  4828.         prefix_default="/boot/common"

  4829.         network_extralibs="-lnetwork"

  4830.         host_extralibs=

  4831.         ;;

  4832.     sunos)

  4833.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4834.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4835.         network_extralibs="-lsocket -lnsl"

  4836.         add_cppflags -D__EXTENSIONS__

  4837.         # When using suncc to build, the Solaris linker will mark

  4838.         # an executable with each instruction set encountered by

  4839.         # the Solaris assembler.  As our libraries contain their own

  4840.         # guards for processor-specific code, instead suppress

  4841.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4842.         enabled_all suncc x86 &&

  4843.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4844.             add_ldflags -Wl,-M,mapfile

  4845.         nm_default='nm -P -g'

  4846.         version_script='-M'

  4847.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4848.         ;;

  4849.     netbsd)

  4850.         disable symver

  4851.         oss_indev_extralibs="-lossaudio"

  4852.         oss_outdev_extralibs="-lossaudio"

  4853.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4854.         ;;

  4855.     openbsd|bitrig)

  4856.         disable symver

  4857.         SHFLAGS='-shared'

  4858.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4859.         SLIB_INSTALL_LINKS=

  4860.         oss_indev_extralibs="-lossaudio"

  4861.         oss_outdev_extralibs="-lossaudio"

  4862.         ;;

  4863.     dragonfly)

  4864.         disable symver

  4865.         ;;

  4866.     freebsd)

  4867.         ;;

  4868.     bsd/os)

  4869.         add_extralibs -lpoll -lgnugetopt

  4870.         strip="strip -d"

  4871.         ;;

  4872.     darwin)

  4873.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4874.         install_name_dir_default='$(SHLIBDIR)'

  4875.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4876.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4877.         strip="${strip} -x"

  4878.         add_ldflags -Wl,-dynamic,-search_paths_first

  4879.         SLIBSUF=".dylib"

  4880.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4881.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4882.         objformat="macho"

  4883.         enabled x86_64 && objformat="macho64" || objformat="macho32"

  4884.         enabled_any pic shared x86_64 ||

  4885.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4886.         check_header dispatch/dispatch.h &&

  4887.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4888.         version_script='-exported_symbols_list'

  4889.         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'

  4890.         ;;

  4891.     msys*)

  4892.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4893.         ;;

  4894.     mingw32*|mingw64*)

  4895.         if test $target_os = "mingw32ce"; then

  4896.             disable network

  4897.         else

  4898.             target_os=mingw32

  4899.         fi

  4900.         LIBTARGET=i386

  4901.         if enabled x86_64; then

  4902.             LIBTARGET="i386:x86-64"

  4903.         elif enabled arm; then

  4904.             LIBTARGET=arm-wince

  4905.         fi

  4906.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4907.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4908.         shlibdir_default="$bindir_default"

  4909.         SLIBPREF=""

  4910.         SLIBSUF=".dll"

  4911.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4912.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4913.         dlltool="${cross_prefix}dlltool"

  4914.         if check_cmd lib.exe -list; then

  4915.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4916.             if enabled x86_64; then

  4917.                 LIBTARGET=x64

  4918.             fi

  4919.         elif check_cmd $dlltool --version; then

  4920.             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)'

  4921.         fi

  4922.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4923.         SLIB_INSTALL_LINKS=

  4924.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4925.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4926.         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'

  4927.         enabled x86_64 && objformat="win64" || objformat="win32"

  4928.         ranlib=:

  4929.         enable dos_paths

  4930.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4931.         # Lets work around some stupidity in binutils.

  4932.         # ld will strip relocations from executables even though we need them

  4933.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4934.         # however ld then forgets what the entry point should be (oops) so we

  4935.         # have to manually (re)set it.

  4936.         if enabled x86_32; then

  4937.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4938.         elif enabled x86_64; then

  4939.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4940.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4941.             # Set image base >4GB for extra entropy with HEASLR

  4942.             add_ldexeflags -Wl,--image-base,0x140000000

  4943.             append SHFLAGS -Wl,--image-base,0x180000000

  4944.         fi

  4945.         ;;

  4946.     win32|win64)

  4947.         disable symver

  4948.         if enabled shared; then

  4949.             # Link to the import library instead of the normal static library

  4950.             # for shared libs.

  4951.             LD_LIB='%.lib'

  4952.             # Cannot build both shared and static libs with MSVC or icl.

  4953.             disable static

  4954.         fi

  4955.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4956.         shlibdir_default="$bindir_default"

  4957.         SLIBPREF=""

  4958.         SLIBSUF=".dll"

  4959.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4960.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4961.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4962.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4963.         SLIB_INSTALL_LINKS=

  4964.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4965.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4966.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4967.         enabled x86_64 && objformat="win64" || objformat="win32"

  4968.         ranlib=:

  4969.         enable dos_paths

  4970.         ;;

  4971.     cygwin*)

  4972.         target_os=cygwin

  4973.         shlibdir_default="$bindir_default"

  4974.         SLIBPREF="cyg"

  4975.         SLIBSUF=".dll"

  4976.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4977.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4978.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4979.         SLIB_INSTALL_LINKS=

  4980.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4981.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4982.         enabled x86_64 && objformat="win64" || objformat="win32"

  4983.         enable dos_paths

  4984.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4985.         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4986.         ;;

  4987.     *-dos|freedos|opendos)

  4988.         network_extralibs="-lsocket"

  4989.         objformat="coff"

  4990.         enable dos_paths

  4991.         add_cppflags -U__STRICT_ANSI__

  4992.         ;;

  4993.     linux)

  4994.         enable dv1394

  4995.         enable section_data_rel_ro

  4996.         ;;

  4997.     irix*)

  4998.         target_os=irix

  4999.         ranlib="echo ignoring ranlib"

  5000.         ;;

  5001.     os/2*)

  5002.         strip="lxlite -CS"

  5003.         objformat="aout"

  5004.         add_cppflags -D_GNU_SOURCE

  5005.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap

  5006.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  5007.         LIBSUF="_s.a"

  5008.         SLIBPREF=""

  5009.         SLIBSUF=".dll"

  5010.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  5011.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  5012.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  5013.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  5014.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  5015.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  5016.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  5017.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  5018.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  5019.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  5020.         SLIB_INSTALL_LINKS=

  5021.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  5022.         enable dos_paths

  5023.         enable_weak os2threads

  5024.         ;;

  5025.     gnu/kfreebsd)

  5026.         add_cppflags -D_BSD_SOURCE

  5027.         ;;

  5028.     gnu)

  5029.         ;;

  5030.     qnx)

  5031.         add_cppflags -D_QNX_SOURCE

  5032.         network_extralibs="-lsocket"

  5033.         ;;

  5034.     symbian)

  5035.         SLIBSUF=".dll"

  5036.         enable dos_paths

  5037.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  5038.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  5039.         add_ldflags -Wl,--target1-abs,--no-undefined \

  5040.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  5041.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  5042.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  5043.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  5044.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  5045.         ;;

  5046.     osf1)

  5047.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  5048.         ;;

  5049.     minix)

  5050.         ;;

  5051.     none)

  5052.         ;;

  5053.     *)

  5054.         die "Unknown OS '$target_os'."

  5055.         ;;

  5056. esac

  5057. 

  5058. # test if creating links works

  5059. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  5060. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  5061. mkdir "$link_dest"

  5062. $ln_s "$link_dest" "$link_name"

  5063. touch "$link_dest/test_file"

  5064. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  5065.     # create link to source path

  5066.     [ -e src ] && rm src

  5067.     $ln_s "$source_path" src

  5068.     source_link=src

  5069. else

  5070.     # creating directory links doesn't work

  5071.     # fall back to using the full source path

  5072.     source_link="$source_path"

  5073. fi

  5074. # cleanup

  5075. rm -r "$link_dest"

  5076. rm -r "$link_name"

  5077. 

  5078. # determine libc flavour

  5079. 

  5080. probe_libc(){

  5081.     pfx=$1

  5082.     pfx_no_=${pfx%_}

  5083.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  5084.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  5085.         eval ${pfx}libc_type=uclibc

  5086.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5087.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  5088.         eval ${pfx}libc_type=glibc

  5089.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  5090.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  5091.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  5092.         eval ${pfx}libc_type=newlib

  5093.         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600

  5094.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  5095.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  5096.         eval ${pfx}libc_type=mingw64

  5097.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  5098.             add_compat msvcrt/snprintf.o

  5099.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  5100.         fi

  5101.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5102.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5103.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5104.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  5105.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  5106.         eval ${pfx}libc_type=mingw32

  5107.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  5108.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  5109.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  5110.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  5111.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  5112.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  5113.         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&

  5114.             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700

  5115.         eval test \$${pfx_no_}cc_type = "gcc" &&

  5116.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  5117.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  5118.         eval ${pfx}libc_type=msvcrt

  5119.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  5120.             if [ "$pfx" = host_ ]; then

  5121.                 add_host_cppflags -Dsnprintf=_snprintf

  5122.             else

  5123.                 add_compat strtod.o strtod=avpriv_strtod

  5124.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  5125.                                              _snprintf=avpriv_snprintf  \

  5126.                                              vsnprintf=avpriv_vsnprintf

  5127.             fi

  5128.         fi

  5129.         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS

  5130.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  5131.         # 0x601 by default unless something else is set by the user.

  5132.         # This can easily lead to us detecting functions only present

  5133.         # in such new versions and producing binaries requiring windows 7.0.

  5134.         # Therefore explicitly set the default to XP unless the user has

  5135.         # set something else on the command line.

  5136.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  5137.         # family. For these cases, configure is free to use any functions

  5138.         # found in the SDK headers by default. (Alternatively, we could force

  5139.         # _WIN32_WINNT to 0x0602 in that case.)

  5140.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  5141.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  5142. #ifdef WINAPI_FAMILY

  5143. #include <winapifamily.h>

  5144. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  5145. #error not desktop

  5146. #endif

  5147. #endif

  5148. EOF

  5149.         if [ "$pfx" = "" ]; then

  5150.             check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  5151.             check_func strtoull || add_cflags -Dstrtoull=_strtoui64

  5152.         fi

  5153.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  5154.         eval ${pfx}libc_type=klibc

  5155.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  5156.         eval ${pfx}libc_type=bionic

  5157.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  5158.         eval ${pfx}libc_type=solaris

  5159.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  5160.     fi

  5161.     check_${pfx}cc <<EOF

  5162. #include <time.h>

  5163. void *v = localtime_r;

  5164. EOF

  5165. 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

  5166. #include <time.h>

  5167. void *v = localtime_r;

  5168. EOF

  5169. 

  5170. }

  5171. 

  5172. probe_libc

  5173. test -n "$libc_type" && enable libc_$libc_type

  5174. probe_libc host_

  5175. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5176. 

  5177. case $libc_type in

  5178.     bionic)

  5179.         add_compat strtod.o strtod=avpriv_strtod

  5180.         ;;

  5181. esac

  5182. 

  5183. # hacks for compiler/libc/os combinations

  5184. 

  5185. if enabled_all tms470 libc_glibc; then

  5186.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5187.     add_cppflags -D__USER_LABEL_PREFIX__=

  5188.     add_cppflags -D__builtin_memset=memset

  5189.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5190.     add_cflags   -pds=48    # incompatible redefinition of macro

  5191. fi

  5192. 

  5193. if enabled_all ccc libc_glibc; then

  5194.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  5195. fi

  5196. 

  5197. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5198.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5199. 

  5200. esc(){

  5201.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5202. }

  5203. 

  5204. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate

  5205. 

  5206. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5207. 

  5208. set_default libdir

  5209. : ${shlibdir_default:="$libdir"}

  5210. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5211. 

  5212. set_default $PATHS_LIST

  5213. set_default nm

  5214. 

  5215. # we need to build at least one lib type

  5216. if ! enabled_any static shared; then

  5217.     cat <<EOF

  5218. At least one library type must be built.

  5219. Specify --enable-static to build the static libraries or --enable-shared to

  5220. build the shared libraries as well. To only build the shared libraries specify

  5221. --disable-static in addition to --enable-shared.

  5222. EOF

  5223.     exit 1

  5224. fi

  5225. 

  5226. disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer

  5227. 

  5228. enable_weak_pic() {

  5229.     disabled pic && return

  5230.     enable pic

  5231.     add_cppflags -DPIC

  5232.     case "$target_os" in

  5233.     mingw*|cygwin*)

  5234.         ;;

  5235.     *)

  5236.         add_cflags -fPIC

  5237.         ;;

  5238.     esac

  5239.     add_asflags  -fPIC

  5240. }

  5241. 

  5242. enabled pic && enable_weak_pic

  5243. 

  5244. check_cc <<EOF || die "Symbol mangling check failed."

  5245. int ff_extern;

  5246. EOF

  5247. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5248. extern_prefix=${sym%%ff_extern*}

  5249. 

  5250. check_cc <<EOF && enable_weak inline_asm

  5251. void foo(void) { __asm__ volatile ("" ::); }

  5252. EOF

  5253. 

  5254. _restrict=

  5255. for restrict_keyword in restrict __restrict__ __restrict; do

  5256.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5257. void foo(char * $restrict_keyword p);

  5258. EOF

  5259. done

  5260. 

  5261. check_cc <<EOF && enable pragma_deprecated

  5262. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5263. EOF

  5264. 

  5265. check_cc <<EOF && enable attribute_packed

  5266. struct { int x; } __attribute__((packed)) x;

  5267. EOF

  5268. 

  5269. check_cc <<EOF && enable attribute_may_alias

  5270. union { int x; } __attribute__((may_alias)) x;

  5271. EOF

  5272. 

  5273. check_cc <<EOF || die "endian test failed"

  5274. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5275. EOF

  5276. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5277. 

  5278. if ! enabled ppc64 || enabled bigendian; then

  5279.     disable vsx

  5280. fi

  5281. 

  5282. check_gas() {

  5283.     log "check_gas using '$as' as AS"

  5284.     # :vararg is used on aarch64, arm and ppc altivec

  5285.     check_as <<EOF || return 1

  5286. .macro m n, y:vararg=0

  5287. \n: .int \y

  5288. .endm

  5289. m x

  5290. EOF

  5291.     # .altmacro is only used in arm asm

  5292.     ! enabled arm || check_as <<EOF || return 1

  5293. .altmacro

  5294. EOF

  5295.     enable gnu_as

  5296.     return 0

  5297. }

  5298. 

  5299. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5300.     nogas=:

  5301.     enabled_any arm aarch64 && nogas=die

  5302.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5303.     as_noop=-v

  5304. 

  5305.     case $as_type in

  5306.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5307.         gcc)  gaspp_as_type=gas ;;

  5308.         *)    gaspp_as_type=$as_type ;;

  5309.     esac

  5310. 

  5311.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5312. 

  5313.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5314.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5315.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5316. 

  5317.     if ! check_gas ; then

  5318.         as=${gas:=$as}

  5319.         check_gas || \

  5320.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5321.     fi

  5322. 

  5323.     check_as <<EOF && enable as_func

  5324. .func test

  5325. .endfunc

  5326. EOF

  5327. fi

  5328. 

  5329. check_inline_asm inline_asm_labels '"1:\n"'

  5330. 

  5331. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5332. 

  5333. if enabled aarch64; then

  5334.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5335.     # internal assembler in clang 3.3 does not support this instruction

  5336.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5337.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5338. 

  5339.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5340. 

  5341. elif enabled alpha; then

  5342. 

  5343.     check_cflags -mieee

  5344. 

  5345. elif enabled arm; then

  5346. 

  5347.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5348. 

  5349.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5350. float func(float a, float b){ return a+b; }

  5351. EOF

  5352. 

  5353.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5354. 

  5355.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5356.         enable vfp_args

  5357.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5358.         enable vfp_args

  5359.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5360.         case "${cross_prefix:-$cc}" in

  5361.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5362.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5363. __asm__ (".eabi_attribute 28, 1");

  5364. int main(void) { return 0; }

  5365. EOF

  5366.         esac

  5367.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5368.     fi

  5369. 

  5370.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5371.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5372.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5373.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5374.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5375.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5376.     enabled setend  && check_insn setend  'setend be'

  5377. 

  5378.     [ $target_os = linux ] || [ $target_os = android ] ||

  5379.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5380.             $ARCH_EXT_LIST_ARM

  5381. 

  5382.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5383. 

  5384.     check_as <<EOF && enable as_dn_directive

  5385. ra .dn d0.i16

  5386. .unreq ra

  5387. EOF

  5388.     check_as <<EOF && enable as_fpu_directive

  5389. .fpu neon

  5390. EOF

  5391. 

  5392.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5393.     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&

  5394.         check_as <<EOF && enable as_object_arch

  5395. .object_arch armv4

  5396. EOF

  5397. 

  5398.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5399. 

  5400. elif enabled mips; then

  5401. 

  5402.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5403.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5404.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5405. 

  5406.     # Enable minimum ISA based on selected options

  5407.     if enabled mips64; then

  5408.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5409.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5410.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5411.     else

  5412.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5413.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5414.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5415.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5416.     fi

  5417. 

  5418.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5419.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5420.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5421.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5422.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5423. 

  5424.     if enabled bigendian && enabled msa; then

  5425.         disable msa

  5426.     fi

  5427. 

  5428. elif enabled parisc; then

  5429. 

  5430.     if enabled gcc; then

  5431.         case $($cc -dumpversion) in

  5432.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5433.         esac

  5434.     fi

  5435. 

  5436. elif enabled ppc; then

  5437. 

  5438.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5439. 

  5440.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5441.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5442.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5443.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5444. 

  5445.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5446.     if enabled altivec; then

  5447.         check_cflags -maltivec -mabi=altivec &&

  5448.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5449.         check_cflags -faltivec

  5450. 

  5451.         # check if our compiler supports Motorola AltiVec C API

  5452.         check_cc <<EOF || disable altivec

  5453. $inc_altivec_h

  5454. int main(void) {

  5455.     vector signed int v1 = (vector signed int) { 0 };

  5456.     vector signed int v2 = (vector signed int) { 1 };

  5457.     v1 = vec_add(v1, v2);

  5458.     return 0;

  5459. }

  5460. EOF

  5461. 

  5462.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5463.     fi

  5464. 

  5465.     if enabled vsx; then

  5466.         check_cflags -mvsx &&

  5467.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5468.     fi

  5469. 

  5470.     if enabled power8; then

  5471.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5472.     fi

  5473. 

  5474. elif enabled x86; then

  5475. 

  5476.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5477.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5478. 

  5479.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5480. 

  5481.     # check whether EBP is available on x86

  5482.     # As 'i' is stored on the stack, this program will crash

  5483.     # if the base pointer is used to access it because the

  5484.     # base pointer is cleared in the inline assembly code.

  5485.     check_exec_crash <<EOF && enable ebp_available

  5486. volatile int i=0;

  5487. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5488. return i;

  5489. EOF

  5490. 

  5491.     # check whether EBX is available on x86

  5492.     check_inline_asm ebx_available '""::"b"(0)' &&

  5493.         check_inline_asm ebx_available '"":::"%ebx"'

  5494. 

  5495.     # check whether xmm clobbers are supported

  5496.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5497. 

  5498.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5499.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5500. 

  5501.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5502.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5503.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5504. 

  5505.     probe_x86asm(){

  5506.         x86asmexe_probe=$1

  5507.         if check_cmd $x86asmexe_probe -v; then

  5508.             x86asmexe=$x86asmexe_probe

  5509.             x86asm_type=nasm

  5510.             x86asm_debug="-g -F dwarf"

  5511.         elif check_cmd $x86asmexe_probe --version; then

  5512.             x86asmexe=$x86asmexe_probe

  5513.             x86asm_type=yasm

  5514.             x86asm_debug="-g dwarf2"

  5515.         fi

  5516.         check_x86asm "movbe ecx, [5]" && enable x86asm

  5517.     }

  5518. 

  5519.     if ! disabled_any asm mmx x86asm; then

  5520.         disable x86asm

  5521.         for program in $x86asmexe nasm yasm; do

  5522.             probe_x86asm $program && break

  5523.         done

  5524.         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."

  5525.         test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'

  5526.         test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'

  5527.         X86ASMFLAGS="-f $objformat"

  5528.         enabled pic               && append X86ASMFLAGS "-DPIC"

  5529.         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"

  5530.         case "$objformat" in

  5531.             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;

  5532.         esac

  5533. 

  5534.         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5535.         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5536.         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5537.         check_x86asm "CPU amdnop" || disable cpunop

  5538.     fi

  5539. 

  5540.     case "$cpu" in

  5541.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5542.             disable fast_clz

  5543.         ;;

  5544.     esac

  5545. 

  5546. fi

  5547. 

  5548. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5549. 

  5550. check_ldflags -Wl,--as-needed

  5551. check_ldflags -Wl,-z,noexecstack

  5552. 

  5553. if check_func dlopen && check_func dlsym; then

  5554.     ldl=

  5555. elif check_func dlopen -ldl && check_func dlsym -ldl; then

  5556.     ldl=-ldl

  5557. fi

  5558. 

  5559. avisynth_demuxer_extralibs='$ldl'

  5560. cuda_extralibs='$ldl'

  5561. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5562. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5563. frei0r_filter_extralibs='$ldl'

  5564. frei0r_src_filter_extralibs='$ldl'

  5565. ladspa_filter_extralibs='$ldl'

  5566. nvenc_extralibs='$ldl'

  5567. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5568. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5569. 

  5570. if ! disabled network; then

  5571.     check_func getaddrinfo $network_extralibs

  5572.     check_func inet_aton $network_extralibs

  5573. 

  5574.     check_type netdb.h "struct addrinfo"

  5575.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5576.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5577.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5578.     check_type poll.h "struct pollfd"

  5579.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5580.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5581.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5582.     check_type netinet/in.h "struct sockaddr_in6"

  5583.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5584.     check_type "sys/types.h sys/socket.h" socklen_t

  5585. 

  5586.     # Prefer arpa/inet.h over winsock2

  5587.     if check_header arpa/inet.h ; then

  5588.         check_func closesocket

  5589.     elif check_header winsock2.h ; then

  5590.         check_func_headers winsock2.h closesocket -lws2 &&

  5591.             network_extralibs="-lws2" ||

  5592.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5593.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5594.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5595. 

  5596.         check_type ws2tcpip.h socklen_t

  5597.         check_type ws2tcpip.h "struct addrinfo"

  5598.         check_type ws2tcpip.h "struct group_source_req"

  5599.         check_type ws2tcpip.h "struct ip_mreq_source"

  5600.         check_type ws2tcpip.h "struct ipv6_mreq"

  5601.         check_type winsock2.h "struct pollfd"

  5602.         check_struct winsock2.h "struct sockaddr" sa_len

  5603.         check_type ws2tcpip.h "struct sockaddr_in6"

  5604.         check_type ws2tcpip.h "struct sockaddr_storage"

  5605.     else

  5606.         disable network

  5607.     fi

  5608. fi

  5609. 

  5610. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5611. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5612. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5613. check_builtin sarestart signal.h "SA_RESTART"

  5614. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5615. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5616. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5617. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5618. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5619. 

  5620. case "$custom_allocator" in

  5621.     jemalloc)

  5622.         # jemalloc by default does not use a prefix

  5623.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5624.     ;;

  5625.     tcmalloc)

  5626.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5627.         malloc_prefix=tc_

  5628.     ;;

  5629. esac

  5630. 

  5631. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5632. check_func  ${malloc_prefix}memalign            && enable memalign

  5633. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5634. 

  5635. check_func  access

  5636. check_func_headers stdlib.h arc4random

  5637. check_func_headers time.h clock_gettime ||

  5638.     { check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }

  5639. check_func  fcntl

  5640. check_func  fork

  5641. check_func  gethrtime

  5642. check_func  getopt

  5643. check_func  getrusage

  5644. check_func  gettimeofday

  5645. check_func  isatty

  5646. check_func  mach_absolute_time

  5647. check_func  mkstemp

  5648. check_func  mmap

  5649. check_func  mprotect

  5650. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5651. check_func_headers time.h nanosleep ||

  5652.     { check_lib nanosleep time.h nanosleep -lrt && LIBRT="-lrt"; }

  5653. check_func  sched_getaffinity

  5654. check_func  setrlimit

  5655. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5656. check_func  strerror_r

  5657. check_func  sysconf

  5658. check_func  sysctl

  5659. check_func  usleep

  5660. 

  5661. check_func_headers conio.h kbhit

  5662. check_func_headers io.h setmode

  5663. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5664. check_func_headers stdlib.h getenv

  5665. check_func_headers sys/stat.h lstat

  5666. 

  5667. check_func_headers windows.h GetProcessAffinityMask

  5668. check_func_headers windows.h GetProcessTimes

  5669. check_func_headers windows.h GetSystemTimeAsFileTime

  5670. check_func_headers windows.h LoadLibrary

  5671. check_func_headers windows.h MapViewOfFile

  5672. check_func_headers windows.h PeekNamedPipe

  5673. check_func_headers windows.h SetConsoleTextAttribute

  5674. check_func_headers windows.h SetConsoleCtrlHandler

  5675. check_func_headers windows.h Sleep

  5676. check_func_headers windows.h VirtualAlloc

  5677. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5678. check_func_headers glob.h glob

  5679. enabled xlib &&

  5680.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5681. 

  5682. check_header AudioToolbox/AudioToolbox.h

  5683. check_header d3d11.h

  5684. check_header direct.h

  5685. check_header dirent.h

  5686. check_header dlfcn.h

  5687. check_header dxgidebug.h

  5688. check_header dxva.h

  5689. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5690. check_header io.h

  5691. check_header libcrystalhd/libcrystalhd_if.h

  5692. check_header mach/mach_time.h

  5693. check_header malloc.h

  5694. check_header net/udplite.h

  5695. check_header poll.h

  5696. check_header sys/mman.h

  5697. check_header sys/param.h

  5698. check_header sys/resource.h

  5699. check_header sys/select.h

  5700. check_header sys/time.h

  5701. check_header sys/un.h

  5702. check_header termios.h

  5703. check_header unistd.h

  5704. check_header valgrind/valgrind.h

  5705. check_header VideoDecodeAcceleration/VDADecoder.h

  5706. check_header VideoToolbox/VideoToolbox.h

  5707. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5708. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5709. check_header windows.h

  5710. check_header X11/extensions/XvMClib.h

  5711. check_header asm/types.h

  5712. 

  5713. # it seems there are versions of clang in some distros that try to use the

  5714. # gcc headers, which explodes for stdatomic

  5715. # so we also check that atomics actually work here

  5716. check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"

  5717. 

  5718. check_lib ole32    "windows.h"            CoTaskMemFree        -lole32

  5719. check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32

  5720. check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32

  5721. check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi

  5722. 

  5723. check_lib coreservices "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5724. 

  5725. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5726. 

  5727. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5728. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5729. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5730. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5731. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5732. 

  5733. check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"

  5734. check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth

  5735. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5736. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5737. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5738. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5739. check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"

  5740. check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"

  5741. check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"

  5742. 

  5743. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5744. 

  5745. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5746. 

  5747. if ! disabled w32threads && ! enabled pthreads; then

  5748.     check_func_headers "windows.h process.h" _beginthreadex &&

  5749.         enable w32threads || disable w32threads

  5750.     if ! enabled w32threads && enabled winrt; then

  5751.         check_func_headers "windows.h" CreateThread &&

  5752.             enable w32threads || disable w32threads

  5753.     fi

  5754. fi

  5755. 

  5756. # check for some common methods of building with pthread support

  5757. # do this before the optional library checks as some of them require pthreads

  5758. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5759.     if check_lib pthreads pthread.h pthread_join   -pthread &&

  5760.        check_lib pthreads pthread.h pthread_create -pthread; then

  5761.         add_cflags -pthread

  5762.     elif check_lib pthreads pthread.h pthread_join   -pthreads &&

  5763.          check_lib pthreads pthread.h pthread_create -pthreads; then

  5764.         add_cflags -pthreads

  5765.     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&

  5766.          check_lib pthreads pthread.h pthread_create -ldl -pthread; then

  5767.         add_cflags -ldl -pthread

  5768.     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&

  5769.          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then

  5770.         :

  5771.     elif check_lib pthreads pthread.h pthread_join   -lpthread &&

  5772.          check_lib pthreads pthread.h pthread_create -lpthread; then

  5773.         :

  5774.     elif check_func pthread_join && check_func pthread_create; then

  5775.         enable pthreads

  5776.     fi

  5777.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5778. fi

  5779. 

  5780. 

  5781. if enabled pthreads; then

  5782.   check_func pthread_cancel

  5783. fi

  5784. 

  5785. enabled pthreads &&

  5786.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

  5787. 

  5788. disabled  zlib || check_lib zlib   zlib.h      zlibVersion    -lz

  5789. disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2

  5790. disabled  lzma || check_lib lzma   lzma.h lzma_version_number -llzma

  5791. 

  5792. check_lib libm math.h sin -lm && LIBM="-lm"

  5793. disabled crystalhd || check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd

  5794. 

  5795. atan2f_args=2

  5796. copysign_args=2

  5797. hypot_args=2

  5798. ldexpf_args=2

  5799. powf_args=2

  5800. 

  5801. for func in $MATH_FUNCS; do

  5802.     eval check_mathfunc $func \${${func}_args:-1} $LIBM

  5803. done

  5804. 

  5805. for func in $COMPLEX_FUNCS; do

  5806.     eval check_complexfunc $func \${${func}_args:-1}

  5807. done

  5808. 

  5809. # these are off by default, so fail if requested and not available

  5810. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5811. enabled avfoundation_indev && { check_lib avfoundation_indev CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5812.                                 check_lib avfoundation_indev ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5813. enabled cuda_sdk          && require cuda_sdk cuda.h cuCtxCreate -lcuda

  5814. enabled cuvid             && { enabled cuda ||

  5815.                                die "ERROR: CUVID requires CUDA"; }

  5816. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5817. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5818. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5819. enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&

  5820.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5821. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5822. enabled gmp               && require gmp gmp.h mpz_export -lgmp

  5823. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5824. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }

  5825. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5826. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5827. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5828. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5829. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5830. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5831.                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5832.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5833. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5834. enabled libdc1394         && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new

  5835. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5836.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5837.                                  warn "using libfdk without pkg-config"; } }

  5838. 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"

  5839. enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs

  5840. enabled fontconfig        && enable libfontconfig

  5841. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5842. enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType

  5843. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5844. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5845. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5846.                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;

  5847.                                done || die "ERROR: libgsm not found"; }

  5848. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5849. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5850. # While it may appear that require is being used as a pkg-config

  5851. # fallback for libmfx, it is actually being used to detect a different

  5852. # installation route altogether.  If libmfx is installed via the Intel

  5853. # Media SDK or Intel Media Server Studio, these don't come with

  5854. # pkg-config support.  Instead, users should make sure that the build

  5855. # can find the libraries and headers through other means.

  5856. enabled libmfx            && { use_pkg_config libmfx "mfx/mfxvideo.h" MFXInit ||

  5857.                                { require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }

  5858. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5859. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5860. enabled libmysofa         && require libmysofa "mysofa.h" mysofa_load -lmysofa

  5861. enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc

  5862. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5863. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5864. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5865.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5866.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5867.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5868. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5869. enabled libopenjpeg       && { { check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5870.                                check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 ||

  5871.                                { check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5872.                                check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||

  5873.                                { check_lib libopenjpeg openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5874.                                { check_lib libopenjpeg openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5875.                                { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||

  5876.                                die "ERROR: libopenjpeg not found"; }

  5877. enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create

  5878. enabled libopus           && {

  5879.     enabled libopus_decoder && {

  5880.         require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5881.     }

  5882.     enabled libopus_encoder && {

  5883.         require_pkg_config opus opus_multistream.h opus_multistream_surround_encoder_create

  5884.     }

  5885. }

  5886. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5887. enabled librsvg           && require_pkg_config librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo

  5888. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5889. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5890. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5891. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5892.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5893. enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy

  5894. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5895. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5896. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5897. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5898. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5899. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5900.                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5901.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5902. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5903. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5904. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5905. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5906. 

  5907. enabled libvpx            && {

  5908.     enabled libvpx_vp8_decoder && {

  5909.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5910.             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5911.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5912.     }

  5913.     enabled libvpx_vp8_encoder && {

  5914.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5915.             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5916.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5917.     }

  5918.     enabled libvpx_vp9_decoder && {

  5919.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5920.             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx

  5921.     }

  5922.     enabled libvpx_vp9_encoder && {

  5923.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5924.             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx

  5925.     }

  5926.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5927.         die "libvpx enabled but no supported decoders found"

  5928.     fi

  5929. }

  5930. 

  5931. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5932. enabled libwebp           && {

  5933.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5934.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5935. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5936.                                { require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&

  5937.                                  warn "using libx264 without pkg-config"; } } &&

  5938.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5939.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5940.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5941.                                enable libx262; }

  5942. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5943.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5944.                                die "ERROR: libx265 version must be >= 68."; }

  5945. enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs

  5946. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5947. enabled libzimg           && require_pkg_config "zimg >= 2.3.0" zimg.h zimg_get_api_version

  5948. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5949. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5950.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5951.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5952. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5953. enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5954.                                { ! enabled cross_compile &&

  5955.                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&

  5956.                                  add_ldflags -L/opt/vc/lib/ &&

  5957.                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||

  5958.                                die "ERROR: mmal not found" &&

  5959.                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }

  5960. enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5961.                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||

  5962.                                die "ERROR: openal not found"; } &&

  5963.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5964.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5965. enabled opencl            && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5966.                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5967.                                die "ERROR: opencl not found"; } &&

  5968.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5969.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5970.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5971. enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||

  5972.                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5973.                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5974.                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5975.                                die "ERROR: opengl not found."

  5976.                              }

  5977. enabled omx_rpi           && { check_header OMX_Core.h ||

  5978.                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||

  5979.                                die "ERROR: OpenMAX IL headers not found"; }

  5980. enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }

  5981. enabled openssl           && { use_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||

  5982.                                use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  5983.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5984.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5985.                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5986.                                die "ERROR: openssl not found"; }

  5987. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5988. 

  5989. if enabled gcrypt; then

  5990.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5991.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  5992.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  5993.         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)

  5994.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||

  5995.             die "ERROR: gcrypt not found"

  5996.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_extralibs

  5997.     else

  5998.         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  5999.     fi

  6000. fi

  6001. 

  6002. disabled sdl && disable sdl2

  6003. if ! disabled sdl2; then

  6004.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  6005.     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then

  6006.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6007.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6008.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  6009.     else

  6010.       if "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  6011.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  6012.         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)

  6013.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  6014.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  6015.         check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2

  6016.       fi

  6017.     fi

  6018.     if test $target_os = "mingw32"; then

  6019.         sdl2_extralibs="$sdl2_extralibs -mconsole"

  6020.     fi

  6021. fi

  6022. enabled sdl2 && enable sdl && add_cflags $sdl2_cflags && add_extralibs $sdl2_extralibs

  6023. 

  6024. if enabled decklink; then

  6025.     case $target_os in

  6026.         mingw32*|mingw64*|win32|win64)

  6027.             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  6028.             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  6029.             ;;

  6030.     esac

  6031. fi

  6032. 

  6033. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  6034.     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security"; }

  6035. 

  6036. disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  6037.                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }

  6038. 

  6039. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  6040. enabled makeinfo \

  6041.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  6042.     && enable makeinfo_html || disable makeinfo_html

  6043. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  6044. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  6045. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  6046. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  6047. 

  6048. check_header linux/fb.h

  6049. check_header linux/videodev.h

  6050. check_header linux/videodev2.h

  6051. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6052. 

  6053. check_header sys/videoio.h

  6054. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  6055. 

  6056. check_lib user32 "windows.h winuser.h" GetShellWindow -luser32

  6057. check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

  6058. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  6059. # w32api 3.12 had it defined wrong

  6060. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  6061. 

  6062. check_type "dshow.h" IBaseFilter

  6063. 

  6064. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  6065. { check_header dev/bktr/ioctl_meteor.h &&

  6066.   check_header dev/bktr/ioctl_bt848.h; } ||

  6067. { check_header machine/ioctl_meteor.h &&

  6068.   check_header machine/ioctl_bt848.h; } ||

  6069. { check_header dev/video/meteor/ioctl_meteor.h &&

  6070.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  6071. check_header dev/ic/bt8xx.h

  6072. 

  6073. if check_struct sys/soundcard.h audio_buf_info bytes; then

  6074.     enable_safe sys/soundcard.h

  6075. else

  6076.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  6077.     #include <sys/soundcard.h>

  6078.     audio_buf_info abc;

  6079. EOF

  6080. fi

  6081. check_header soundcard.h

  6082. 

  6083. enabled_any alsa_indev alsa_outdev &&

  6084.     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound

  6085. 

  6086. enabled jack_indev && check_lib jack jack/jack.h jack_client_open -ljack &&

  6087.     check_func jack_port_get_latency_range -ljack

  6088. 

  6089. enabled_any sndio_indev sndio_outdev && check_lib sndio sndio.h sio_open -lsndio

  6090. 

  6091. if enabled libcdio; then

  6092.     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6093.     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  6094.     die "ERROR: No usable libcdio/cdparanoia found"

  6095. fi

  6096. 

  6097. if ! disabled libxcb; then

  6098.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  6099.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  6100.     } && enable libxcb

  6101. 

  6102. if enabled libxcb; then

  6103.     disabled libxcb_shm || {

  6104.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  6105.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  6106.         } && check_header sys/shm.h && enable libxcb_shm; }

  6107. 

  6108.     disabled libxcb_xfixes || {

  6109.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  6110.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  6111.         } && enable libxcb_xfixes; }

  6112. 

  6113.     disabled libxcb_shape || {

  6114.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  6115.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  6116.         } && enable libxcb_shape; }

  6117. 

  6118.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  6119.     add_extralibs $xcb_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs $xcb_shape_extralibs

  6120. fi

  6121. fi

  6122. 

  6123. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  6124. 

  6125. # d3d11va requires linking directly to dxgi and d3d11 if not building for

  6126. # the desktop api partition

  6127. enabled LoadLibrary || d3d11va_extralibs="-ldxgi -ld3d11"

  6128. 

  6129. enabled vaapi &&

  6130.     check_lib vaapi va/va.h vaInitialize -lva

  6131. 

  6132. enabled vaapi &&

  6133.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  6134.     disable vaapi

  6135. 

  6136. enabled vaapi &&

  6137.     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm

  6138. 

  6139. enabled vaapi &&

  6140.     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11

  6141. 

  6142. enabled vdpau &&

  6143.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6144.     disable vdpau

  6145. 

  6146. enabled vdpau &&

  6147.     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11

  6148. 

  6149. if enabled x86; then

  6150.     case $target_os in

  6151.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6152.             ;;

  6153.         *)

  6154.             disable cuda cuvid nvenc

  6155.             ;;

  6156.     esac

  6157. else

  6158.     disable cuda cuvid nvenc

  6159. fi

  6160. 

  6161. enabled nvenc &&

  6162.     check_cc -I$source_path <<EOF || disable nvenc

  6163. #include "compat/nvenc/nvEncodeAPI.h"

  6164. NV_ENCODE_API_FUNCTION_LIST flist;

  6165. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6166. int main(void) { return 0; }

  6167. EOF

  6168. 

  6169. # Funny iconv installations are not unusual, so check it after all flags have been set

  6170. disabled iconv || check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv

  6171. 

  6172. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6173. 

  6174. # add some useful compiler flags if supported

  6175. check_cflags -Wdeclaration-after-statement

  6176. check_cflags -Wall

  6177. check_cflags -Wdisabled-optimization

  6178. check_cflags -Wpointer-arith

  6179. check_cflags -Wredundant-decls

  6180. check_cflags -Wwrite-strings

  6181. check_cflags -Wtype-limits

  6182. check_cflags -Wundef

  6183. check_cflags -Wmissing-prototypes

  6184. check_cflags -Wno-pointer-to-int-cast

  6185. check_cflags -Wstrict-prototypes

  6186. check_cflags -Wempty-body

  6187. 

  6188. if enabled extra_warnings; then

  6189.     check_cflags -Wcast-qual

  6190.     check_cflags -Wextra

  6191.     check_cflags -Wpedantic

  6192. fi

  6193. 

  6194. check_disable_warning(){

  6195.     warning_flag=-W${1#-Wno-}

  6196.     test_cflags $warning_flag && add_cflags $1

  6197. }

  6198. 

  6199. check_disable_warning -Wno-parentheses

  6200. check_disable_warning -Wno-switch

  6201. check_disable_warning -Wno-format-zero-length

  6202. check_disable_warning -Wno-pointer-sign

  6203. check_disable_warning -Wno-unused-const-variable

  6204. 

  6205. check_disable_warning_headers(){

  6206.     warning_flag=-W${1#-Wno-}

  6207.     test_cflags $warning_flag && add_cflags_headers $1

  6208. }

  6209. 

  6210. check_disable_warning_headers -Wno-deprecated-declarations

  6211. check_disable_warning_headers -Wno-unused-variable

  6212. 

  6213. check_cc <<EOF && enable blocks_extension

  6214. void (^block)(void);

  6215. EOF

  6216. 

  6217. # add some linker flags

  6218. check_ldflags -Wl,--warn-common

  6219. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6220. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6221. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6222. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6223. 

  6224. # add some strip flags

  6225. check_stripflags -x

  6226. 

  6227. enabled neon_clobber_test &&

  6228.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6229.                   -Wl,--wrap,avcodec_decode_audio4      \

  6230.                   -Wl,--wrap,avcodec_decode_video2      \

  6231.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6232.                   -Wl,--wrap,avcodec_encode_audio2      \

  6233.                   -Wl,--wrap,avcodec_encode_video2      \

  6234.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6235.                   -Wl,--wrap,avcodec_send_packet        \

  6236.                   -Wl,--wrap,avcodec_receive_packet     \

  6237.                   -Wl,--wrap,avcodec_send_frame         \

  6238.                   -Wl,--wrap,avcodec_receive_frame      \

  6239.                   -Wl,--wrap,swr_convert                \

  6240.                   -Wl,--wrap,avresample_convert ||

  6241.     disable neon_clobber_test

  6242. 

  6243. enabled xmm_clobber_test &&

  6244.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6245.                   -Wl,--wrap,avcodec_decode_audio4      \

  6246.                   -Wl,--wrap,avcodec_decode_video2      \

  6247.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6248.                   -Wl,--wrap,avcodec_encode_audio2      \

  6249.                   -Wl,--wrap,avcodec_encode_video2      \

  6250.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6251.                   -Wl,--wrap,avcodec_send_packet        \

  6252.                   -Wl,--wrap,avcodec_receive_packet     \

  6253.                   -Wl,--wrap,avcodec_send_frame         \

  6254.                   -Wl,--wrap,avcodec_receive_frame      \

  6255.                   -Wl,--wrap,swr_convert                \

  6256.                   -Wl,--wrap,avresample_convert         \

  6257.                   -Wl,--wrap,sws_scale ||

  6258.     disable xmm_clobber_test

  6259. 

  6260. check_ld "cc" <<EOF && enable proper_dce

  6261. extern const int array[512];

  6262. static inline int func(void) { return array[0]; }

  6263. int main(void) { return 0; }

  6264. EOF

  6265. 

  6266. if enabled proper_dce; then

  6267.     echo "X { local: *; };" > $TMPV

  6268.     if test_ldflags -Wl,${version_script},$TMPV; then

  6269.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6270.         check_cc <<EOF && enable symver_asm_label

  6271. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6272. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6273. EOF

  6274.         check_cc <<EOF && enable symver_gnu_asm

  6275. __asm__(".symver ff_foo,av_foo@VERSION");

  6276. void ff_foo(void) {}

  6277. EOF

  6278.     fi

  6279. fi

  6280. 

  6281. if [ -z "$optflags" ]; then

  6282.     if enabled small; then

  6283.         optflags=$cflags_size

  6284.     elif enabled optimizations; then

  6285.         optflags=$cflags_speed

  6286.     else

  6287.         optflags=$cflags_noopt

  6288.     fi

  6289. fi

  6290. 

  6291. if [ -z "$nvccflags" ]; then

  6292.     nvccflags=$nvccflags_default

  6293. fi

  6294. 

  6295. if enabled x86_64 || enabled ppc64 || enabled aarch64; then

  6296.     nvccflags="$nvccflags -m64"

  6297. else

  6298.     nvccflags="$nvccflags -m32"

  6299. fi

  6300. 

  6301. check_optflags(){

  6302.     check_cflags "$@"

  6303.     enabled lto && check_ldflags "$@"

  6304. }

  6305. 

  6306. check_optflags $optflags

  6307. check_optflags -fno-math-errno

  6308. check_optflags -fno-signed-zeros

  6309. 

  6310. if enabled lto; then

  6311.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6312.     check_cflags  -flto

  6313.     check_ldflags -flto $cpuflags

  6314.     disable inline_asm_direct_symbol_refs

  6315. fi

  6316. 

  6317. enabled ftrapv && check_cflags -ftrapv

  6318. 

  6319. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6320. int x;

  6321. EOF

  6322. 

  6323. 

  6324. if enabled icc; then

  6325.     # Just warnings, no remarks

  6326.     check_cflags -w1

  6327.     # -wd: Disable following warnings

  6328.     # 144, 167, 556: -Wno-pointer-sign

  6329.     # 188: enumerated type mixed with another type

  6330.     # 1292: attribute "foo" ignored

  6331.     # 1419: external declaration in primary source file

  6332.     # 10006: ignoring unknown option -fno-signed-zeros

  6333.     # 10148: ignoring unknown option -Wno-parentheses

  6334.     # 10156: ignoring option '-W'; no argument required

  6335.     # 13200: No EMMS instruction before call to function

  6336.     # 13203: No EMMS instruction before return from function

  6337.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6338.     # 11030: Warning unknown option --as-needed

  6339.     # 10156: ignoring option '-export'; no argument required

  6340.     check_ldflags -wd10156,11030

  6341.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6342.     enable ebp_available

  6343.     # The test above does not test linking

  6344.     enabled lto && disable symver_asm_label

  6345.     if enabled x86_32; then

  6346.         icc_version=$($cc -dumpversion)

  6347.         test ${icc_version%%.*} -ge 11 &&

  6348.             check_cflags -falign-stack=maintain-16-byte ||

  6349.             disable aligned_stack

  6350.     fi

  6351. elif enabled ccc; then

  6352.     # disable some annoying warnings

  6353.     add_cflags -msg_disable bitnotint

  6354.     add_cflags -msg_disable mixfuncvoid

  6355.     add_cflags -msg_disable nonstandcast

  6356.     add_cflags -msg_disable unsupieee

  6357. elif enabled gcc; then

  6358.     check_optflags -fno-tree-vectorize

  6359.     check_cflags -Werror=format-security

  6360.     check_cflags -Werror=implicit-function-declaration

  6361.     check_cflags -Werror=missing-prototypes

  6362.     check_cflags -Werror=return-type

  6363.     check_cflags -Werror=vla

  6364.     check_cflags -Wformat

  6365.     check_cflags -fdiagnostics-color=auto

  6366.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6367. elif enabled llvm_gcc; then

  6368.     check_cflags -mllvm -stack-alignment=16

  6369. elif enabled clang; then

  6370.     check_cflags -mllvm -stack-alignment=16

  6371.     check_cflags -mstack-alignment=16

  6372.     check_cflags -Qunused-arguments

  6373.     check_cflags -Werror=implicit-function-declaration

  6374.     check_cflags -Werror=missing-prototypes

  6375.     check_cflags -Werror=return-type

  6376. elif enabled cparser; then

  6377.     add_cflags -Wno-missing-variable-declarations

  6378.     add_cflags -Wno-empty-statement

  6379. elif enabled armcc; then

  6380.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6381.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6382.     # 2523: use of inline assembly is deprecated

  6383.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6384.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6385.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6386.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6387.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6388.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6389. elif enabled tms470; then

  6390.     add_cflags -pds=824 -pds=837

  6391.     disable inline_asm

  6392. elif enabled pathscale; then

  6393.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6394. elif enabled_any msvc icl; then

  6395.     enabled x86_32 && disable aligned_stack

  6396.     enabled_all x86_32 debug && add_cflags -Oy-

  6397.     enabled debug && add_ldflags -debug

  6398.     enable pragma_deprecated

  6399.     if enabled icl; then

  6400.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6401.         # (correctly) on icl 13.x.

  6402.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6403.             add_cflags -Qansi-alias

  6404.         # Some inline asm is not compilable in debug

  6405.         if enabled debug; then

  6406.             disable ebp_available

  6407.             disable ebx_available

  6408.         fi

  6409.     fi

  6410.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6411.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6412.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6413.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6414.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6415.     # MSVC 2013 and newer can handle it fine.

  6416.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6417.     # happens in config.h.

  6418.     if [ $_restrict != restrict ]; then

  6419.         check_cc <<EOF || add_cflags -FIstdlib.h

  6420. __declspec($_restrict) void* foo(int);

  6421. EOF

  6422.     fi

  6423.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6424.     # Issue has been fixed in MSVC v19.00.24218.

  6425.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||

  6426.         check_cflags -d2SSAOptimizer-

  6427.     # enable utf-8 source processing on VS2015 U2 and newer

  6428.     check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&

  6429.         add_cflags -utf-8

  6430. fi

  6431. 

  6432. for pfx in "" host_; do

  6433.     varname=${pfx%_}cc_type

  6434.     eval "type=\$$varname"

  6435.     if [ "$type" = "msvc" ]; then

  6436.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6437. static inline int foo(int a) { return a; }

  6438. EOF

  6439.     fi

  6440. done

  6441. 

  6442. case $as_type in

  6443.     clang)

  6444.         add_asflags -Qunused-arguments

  6445.     ;;

  6446. esac

  6447. 

  6448. case $ld_type in

  6449.     clang)

  6450.         check_ldflags -Qunused-arguments

  6451.     ;;

  6452. esac

  6453. 

  6454. case $target_os in

  6455.     osf1)

  6456.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6457.     ;;

  6458. esac

  6459. 

  6460. enable frame_thread_encoder

  6461. 

  6462. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6463. 

  6464. check_deps $CONFIG_LIST       \

  6465.            $CONFIG_EXTRA      \

  6466.            $HAVE_LIST         \

  6467.            $ALL_COMPONENTS    \

  6468. 

  6469. 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"

  6470. 

  6471. 

  6472. if test $target_os = "haiku"; then

  6473.     disable memalign

  6474.     disable posix_memalign

  6475. fi

  6476. 

  6477. # add_dep lib dep

  6478. # -> enable ${lib}_deps_${dep}

  6479. # -> add $dep to ${lib}_deps only once

  6480. add_dep() {

  6481.     lib=$1

  6482.     dep=$2

  6483.     enabled "${lib}_deps_${dep}" && return 0

  6484.     enable  "${lib}_deps_${dep}"

  6485.     prepend "${lib}_deps" $dep

  6486. }

  6487. 

  6488. # merge deps lib components

  6489. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6490. merge_deps() {

  6491.     lib=$1

  6492.     shift

  6493.     for comp in $*; do

  6494.         enabled $comp || continue

  6495.         eval "dep=\"\$${comp}_deps\""

  6496.         for d in $dep; do

  6497.             add_dep $lib $d

  6498.         done

  6499.     done

  6500. }

  6501. 

  6502. merge_deps libavfilter $FILTER_LIST

  6503. 

  6504. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6505. 

  6506. for thread in $THREADS_LIST; do

  6507.     if enabled $thread; then

  6508.         test -n "$thread_type" &&

  6509.             die "ERROR: Only one thread type must be selected." ||

  6510.             thread_type="$thread"

  6511.     fi

  6512. done

  6513. 

  6514. if disabled stdatomic_h; then

  6515.     if enabled atomics_gcc; then

  6516.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'

  6517.     elif enabled atomics_win32; then

  6518.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'

  6519.     elif enabled atomics_suncc; then

  6520.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'

  6521.     elif enabled pthreads; then

  6522.         add_compat atomics/pthread/stdatomic.o

  6523.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'

  6524.     else

  6525.         enabled threads && die "Threading is enabled, but no atomics are available"

  6526.         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'

  6527.     fi

  6528. fi

  6529. 

  6530. # Check if requested libraries were found.

  6531. for lib in $AUTODETECT_LIBS; do

  6532.     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";

  6533. done

  6534. 

  6535. enabled zlib && add_cppflags -DZLIB_CONST

  6536. 

  6537. # conditional library dependencies, in linking order

  6538. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6539. enabled afir_filter         && prepend avfilter_deps "avcodec"

  6540. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6541. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6542. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6543. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6544. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6545. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6546. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6547. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6548. enabled firequalizer_filter && prepend avfilter_deps "avcodec"

  6549. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6550. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6551. enabled pan_filter          && prepend avfilter_deps "swresample"

  6552. enabled pp_filter           && prepend avfilter_deps "postproc"

  6553. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6554. enabled resample_filter && prepend avfilter_deps "avresample"

  6555. enabled sab_filter          && prepend avfilter_deps "swscale"

  6556. enabled scale_filter    && prepend avfilter_deps "swscale"

  6557. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6558. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6559. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6560. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6561. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6562. enabled signature_filter    && prepend avfilter_deps "avcodec avformat"

  6563. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6564. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6565. enabled spp_filter          && prepend avfilter_deps "avcodec"

  6566. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6567. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6568. enabled zoompan_filter      && prepend avfilter_deps "swscale"

  6569. 

  6570. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6571. 

  6572. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6573. 

  6574. expand_deps(){

  6575.     lib_deps=${1}_deps

  6576.     eval "deps=\$$lib_deps"

  6577.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6578.     unique $lib_deps

  6579. }

  6580. 

  6581. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6582. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6583. 

  6584. map 'expand_deps $v' $LIBRARY_LIST

  6585. 

  6586. license="LGPL version 2.1 or later"

  6587. if enabled nonfree; then

  6588.     license="nonfree and unredistributable"

  6589. elif enabled gplv3; then

  6590.     license="GPL version 3 or later"

  6591. elif enabled lgplv3; then

  6592.     license="LGPL version 3 or later"

  6593. elif enabled gpl; then

  6594.     license="GPL version 2 or later"

  6595. fi

  6596. 

  6597. if test "$quiet" != "yes"; then

  6598. 

  6599. echo "install prefix            $prefix"

  6600. echo "source path               $source_path"

  6601. echo "C compiler                $cc"

  6602. echo "C library                 $libc_type"

  6603. if test "$host_cc" != "$cc"; then

  6604.     echo "host C compiler           $host_cc"

  6605.     echo "host C library            $host_libc_type"

  6606. fi

  6607. echo "ARCH                      $arch ($cpu)"

  6608. if test "$build_suffix" != ""; then

  6609.     echo "build suffix              $build_suffix"

  6610. fi

  6611. if test "$progs_suffix" != ""; then

  6612.     echo "progs suffix              $progs_suffix"

  6613. fi

  6614. if test "$extra_version" != ""; then

  6615.     echo "version string suffix     $extra_version"

  6616. fi

  6617. echo "big-endian                ${bigendian-no}"

  6618. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6619. if enabled x86; then

  6620.     echo "standalone assembly       ${x86asm-no}"

  6621.     echo "x86 assembler             ${x86asmexe}"

  6622.     echo "MMX enabled               ${mmx-no}"

  6623.     echo "MMXEXT enabled            ${mmxext-no}"

  6624.     echo "3DNow! enabled            ${amd3dnow-no}"

  6625.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6626.     echo "SSE enabled               ${sse-no}"

  6627.     echo "SSSE3 enabled             ${ssse3-no}"

  6628.     echo "AESNI enabled             ${aesni-no}"

  6629.     echo "AVX enabled               ${avx-no}"

  6630.     echo "XOP enabled               ${xop-no}"

  6631.     echo "FMA3 enabled              ${fma3-no}"

  6632.     echo "FMA4 enabled              ${fma4-no}"

  6633.     echo "i686 features enabled     ${i686-no}"

  6634.     echo "CMOV is fast              ${fast_cmov-no}"

  6635.     echo "EBX available             ${ebx_available-no}"

  6636.     echo "EBP available             ${ebp_available-no}"

  6637. fi

  6638. if enabled aarch64; then

  6639.     echo "NEON enabled              ${neon-no}"

  6640.     echo "VFP enabled               ${vfp-no}"

  6641. fi

  6642. if enabled arm; then

  6643.     echo "ARMv5TE enabled           ${armv5te-no}"

  6644.     echo "ARMv6 enabled             ${armv6-no}"

  6645.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6646.     echo "VFP enabled               ${vfp-no}"

  6647.     echo "NEON enabled              ${neon-no}"

  6648.     echo "THUMB enabled             ${thumb-no}"

  6649. fi

  6650. if enabled mips; then

  6651.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6652.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6653.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6654.     echo "MIPS MSA enabled          ${msa-no}"

  6655.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6656. fi

  6657. if enabled ppc; then

  6658.     echo "AltiVec enabled           ${altivec-no}"

  6659.     echo "VSX enabled               ${vsx-no}"

  6660.     echo "POWER8 enabled            ${power8-no}"

  6661.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6662.     echo "dcbzl available           ${dcbzl-no}"

  6663. fi

  6664. echo "debug symbols             ${debug-no}"

  6665. echo "strip symbols             ${stripping-no}"

  6666. echo "optimize for size         ${small-no}"

  6667. echo "optimizations             ${optimizations-no}"

  6668. echo "static                    ${static-no}"

  6669. echo "shared                    ${shared-no}"

  6670. echo "postprocessing support    ${postproc-no}"

  6671. echo "network support           ${network-no}"

  6672. echo "threading support         ${thread_type-no}"

  6673. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6674. echo "texi2html enabled         ${texi2html-no}"

  6675. echo "perl enabled              ${perl-no}"

  6676. echo "pod2man enabled           ${pod2man-no}"

  6677. echo "makeinfo enabled          ${makeinfo-no}"

  6678. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6679. test -n "$random_seed" &&

  6680.     echo "random seed               ${random_seed}"

  6681. echo

  6682. 

  6683. echo "External libraries:"

  6684. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6685. echo

  6686. 

  6687. echo "External libraries providing hardware acceleration:"

  6688. print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns

  6689. echo

  6690. 

  6691. echo "Libraries:"

  6692. print_enabled '' $LIBRARY_LIST | print_in_columns

  6693. echo

  6694. 

  6695. echo "Programs:"

  6696. print_enabled '' $PROGRAM_LIST | print_in_columns

  6697. echo

  6698. 

  6699. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6700.     echo "Enabled ${type}s:"

  6701.     eval list=\$$(toupper $type)_LIST

  6702.     print_enabled '_*' $list | print_in_columns

  6703.     echo

  6704. done

  6705. 

  6706. if test -n "$ignore_tests"; then

  6707.     ignore_tests=$(echo $ignore_tests | tr ',' ' ')

  6708.     echo "Ignored FATE tests:"

  6709.     echo $ignore_tests | print_in_columns

  6710.     echo

  6711. fi

  6712. 

  6713. echo "License: $license"

  6714. 

  6715. echo "Creating configuration files ..."

  6716. 

  6717. fi # test "$quiet" != "yes"

  6718. 

  6719. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6720. 

  6721. enabled stripping || strip="echo skipping strip"

  6722. 

  6723. config_files="$TMPH ffbuild/config.mak doc/config.texi"

  6724. 

  6725. cat > ffbuild/config.mak <<EOF

  6726. # Automatically generated by configure - do not modify!

  6727. ifndef FFMPEG_CONFIG_MAK

  6728. FFMPEG_CONFIG_MAK=1

  6729. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6730. prefix=$prefix

  6731. LIBDIR=\$(DESTDIR)$libdir

  6732. SHLIBDIR=\$(DESTDIR)$shlibdir

  6733. INCDIR=\$(DESTDIR)$incdir

  6734. BINDIR=\$(DESTDIR)$bindir

  6735. DATADIR=\$(DESTDIR)$datadir

  6736. DOCDIR=\$(DESTDIR)$docdir

  6737. MANDIR=\$(DESTDIR)$mandir

  6738. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6739. INSTALL_NAME_DIR=$install_name_dir

  6740. SRC_PATH=$source_path

  6741. SRC_LINK=$source_link

  6742. ifndef MAIN_MAKEFILE

  6743. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6744. endif

  6745. CC_IDENT=$cc_ident

  6746. ARCH=$arch

  6747. INTRINSICS=$intrinsics

  6748. CC=$cc

  6749. CXX=$cxx

  6750. AS=$as

  6751. OBJCC=$objcc

  6752. LD=$ld

  6753. DEPCC=$dep_cc

  6754. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6755. DEPAS=$as

  6756. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6757. X86ASM=$x86asmexe

  6758. DEPX86ASM=$x86asmexe

  6759. DEPX86ASMFLAGS=\$(X86ASMFLAGS)

  6760. AR=$ar

  6761. ARFLAGS=$arflags

  6762. AR_O=$ar_o

  6763. RANLIB=$ranlib

  6764. STRIP=$strip

  6765. NVCC=$nvcc

  6766. CP=cp -p

  6767. LN_S=$ln_s

  6768. CPPFLAGS=$CPPFLAGS

  6769. CFLAGS=$CFLAGS

  6770. CXXFLAGS=$CXXFLAGS

  6771. OBJCFLAGS=$OBJCFLAGS

  6772. ASFLAGS=$ASFLAGS

  6773. NVCCFLAGS=$nvccflags

  6774. AS_C=$AS_C

  6775. AS_O=$AS_O

  6776. OBJCC_C=$OBJCC_C

  6777. OBJCC_E=$OBJCC_E

  6778. OBJCC_O=$OBJCC_O

  6779. CC_C=$CC_C

  6780. CC_E=$CC_E

  6781. CC_O=$CC_O

  6782. CXX_C=$CXX_C

  6783. CXX_O=$CXX_O

  6784. NVCC_C=$NVCC_C

  6785. NVCC_O=$NVCC_O

  6786. LD_O=$LD_O

  6787. X86ASM_O=$X86ASM_O

  6788. LD_LIB=$LD_LIB

  6789. LD_PATH=$LD_PATH

  6790. DLLTOOL=$dlltool

  6791. WINDRES=$windres

  6792. DEPWINDRES=$dep_cc

  6793. DOXYGEN=$doxygen

  6794. LDFLAGS=$LDFLAGS

  6795. LDEXEFLAGS=$LDEXEFLAGS

  6796. LDLIBFLAGS=$LDLIBFLAGS

  6797. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6798. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6799. X86ASMFLAGS=$X86ASMFLAGS

  6800. BUILDSUF=$build_suffix

  6801. PROGSSUF=$progs_suffix

  6802. FULLNAME=$FULLNAME

  6803. LIBPREF=$LIBPREF

  6804. LIBSUF=$LIBSUF

  6805. LIBNAME=$LIBNAME

  6806. SLIBPREF=$SLIBPREF

  6807. SLIBSUF=$SLIBSUF

  6808. EXESUF=$EXESUF

  6809. EXTRA_VERSION=$extra_version

  6810. CCDEP=$CCDEP

  6811. CXXDEP=$CXXDEP

  6812. CCDEP_FLAGS=$CCDEP_FLAGS

  6813. ASDEP=$ASDEP

  6814. ASDEP_FLAGS=$ASDEP_FLAGS

  6815. X86ASMDEP=$X86ASMDEP

  6816. X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS

  6817. CC_DEPFLAGS=$CC_DEPFLAGS

  6818. AS_DEPFLAGS=$AS_DEPFLAGS

  6819. X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS

  6820. HOSTCC=$host_cc

  6821. HOSTLD=$host_ld

  6822. HOSTCFLAGS=$host_cflags

  6823. HOSTCPPFLAGS=$host_cppflags

  6824. HOSTEXESUF=$HOSTEXESUF

  6825. HOSTLDFLAGS=$host_ldflags

  6826. HOSTEXTRALIBS=$host_extralibs

  6827. DEPHOSTCC=$host_cc

  6828. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6829. HOSTCCDEP=$HOSTCCDEP

  6830. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6831. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6832. HOSTCC_C=$HOSTCC_C

  6833. HOSTCC_O=$HOSTCC_O

  6834. HOSTLD_O=$HOSTLD_O

  6835. TARGET_EXEC=$target_exec $target_exec_args

  6836. TARGET_PATH=$target_path

  6837. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6838. CFLAGS-ffplay=${sdl2_cflags}

  6839. CFLAGS_HEADERS=$CFLAGS_HEADERS

  6840. ZLIB=$($ldflags_filter -lz)

  6841. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6842. EXTRALIBS=$extralibs

  6843. COMPAT_OBJS=$compat_objs

  6844. INSTALL=$install

  6845. LIBTARGET=${LIBTARGET}

  6846. SLIBNAME=${SLIBNAME}

  6847. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6848. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6849. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6850. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6851. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6852. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6853. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6854. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6855. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6856. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6857. NOREDZONE_FLAGS=$noredzone_flags

  6858. LIBFUZZER_PATH=$libfuzzer_path

  6859. IGNORE_TESTS=$ignore_tests

  6860. EOF

  6861. 

  6862. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST

  6863. 

  6864. print_program_extralibs(){

  6865.     eval "program_extralibs=\$${1}_extralibs"

  6866.     eval echo "EXTRALIBS-${1}=${program_extralibs}" >> ffbuild/config.mak

  6867. }

  6868. 

  6869. map 'print_program_extralibs $v' $PROGRAM_LIST

  6870. 

  6871. cat > $TMPH <<EOF

  6872. /* Automatically generated by configure - do not modify! */

  6873. #ifndef FFMPEG_CONFIG_H

  6874. #define FFMPEG_CONFIG_H

  6875. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6876. #define FFMPEG_LICENSE "$(c_escape $license)"

  6877. #define CONFIG_THIS_YEAR 2017

  6878. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6879. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6880. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6881. #define av_restrict $_restrict

  6882. #define EXTERN_PREFIX "${extern_prefix}"

  6883. #define EXTERN_ASM ${extern_prefix}

  6884. #define BUILDSUF "$build_suffix"

  6885. #define SLIBSUF "$SLIBSUF"

  6886. #define HAVE_MMX2 HAVE_MMXEXT

  6887. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6888. EOF

  6889. 

  6890. test -n "$assert_level" &&

  6891.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6892. 

  6893. test -n "$malloc_prefix" &&

  6894.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6895. 

  6896. if enabled x86asm; then

  6897.     append config_files $TMPASM

  6898.     printf '' >$TMPASM

  6899. fi

  6900. 

  6901. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6902. 

  6903. 

  6904. mkdir -p doc

  6905. mkdir -p tests

  6906. mkdir -p tests/api

  6907. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6908. 

  6909. print_config ARCH_   "$config_files" $ARCH_LIST

  6910. print_config HAVE_   "$config_files" $HAVE_LIST

  6911. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6912.                                      $CONFIG_EXTRA      \

  6913.                                      $ALL_COMPONENTS    \

  6914. 

  6915. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6916. echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak

  6917. 

  6918. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6919. cp_if_changed $TMPH config.h

  6920. touch ffbuild/.config

  6921. 

  6922. enabled x86asm && cp_if_changed $TMPASM config.asm

  6923. 

  6924. cat > $TMPH <<EOF

  6925. /* Generated by ffconf */

  6926. #ifndef AVUTIL_AVCONFIG_H

  6927. #define AVUTIL_AVCONFIG_H

  6928. EOF

  6929. 

  6930. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6931. 

  6932. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6933. 

  6934. cp_if_changed $TMPH libavutil/avconfig.h

  6935. 

  6936. # generate the lists of enabled components

  6937. print_enabled_components(){

  6938.     file=$1

  6939.     struct_name=$2

  6940.     name=$3

  6941.     shift 3

  6942.     echo "static const $struct_name *$name[] = {" > $TMPH

  6943.     for c in $*; do

  6944.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  6945.     done

  6946.     echo "    NULL };" >> $TMPH

  6947.     cp_if_changed $TMPH $file

  6948. }

  6949. 

  6950. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  6951. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  6952. 

  6953. if test -n "$WARNINGS"; then

  6954.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6955.     enabled fatal_warnings && exit 1

  6956. fi

  6957. 

  6958. # Settings for pkg-config files

  6959. 

  6960. cat > ffbuild/config.sh <<EOF

  6961. # Automatically generated by configure - do not modify!

  6962. shared=$shared

  6963. build_suffix=$build_suffix

  6964. prefix=$prefix

  6965. libdir=$libdir

  6966. incdir=$incdir

  6967. rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")

  6968. source_path=${source_path}

  6969. LIBPREF=${LIBPREF}

  6970. LIBSUF=${LIBSUF}

  6971. 

  6972. extralibs_avutil="$LIBRT $LIBM"

  6973. extralibs_avcodec="$extralibs"

  6974. extralibs_avformat="$extralibs"

  6975. extralibs_avdevice="$extralibs"

  6976. extralibs_avfilter="$extralibs"

  6977. extralibs_avresample="$LIBM"

  6978. extralibs_postproc=""

  6979. extralibs_swscale="$LIBM"

  6980. extralibs_swresample="$LIBM $LIBSOXR"

  6981. EOF

  6982. 

  6983. for lib in $LIBRARY_LIST; do

  6984.     lib_deps="$(eval echo \$${lib}_deps)"

  6985.     echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh

  6986. done