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FFmpeg
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  1. #!/bin/sh

  2. #

  3. # FFmpeg configure script

  4. #

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

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

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

  8. #

  9. 

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

  11. LC_ALL=C

  12. export LC_ALL

  13. 

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

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

  16. 

  17. try_exec(){

  18.     echo "Trying shell $1"

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

  20. }

  21. 

  22. unset foo

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

  24. E1="$?"

  25. 

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

  27. E2="$?"

  28. 

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

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

  31.     export FF_CONF_EXEC

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

  33.         FF_CONF_EXEC=1

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

  35.     fi

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

  37.         FF_CONF_EXEC=2

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

  39.     fi

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

  41.         FF_CONF_EXEC=3

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

  43.     fi

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

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

  46.     echo "such as bash or ksh."

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

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

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

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

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

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

  53.     fi

  54.     exit 1

  55. fi

  56. 

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

  58. 

  59. show_help(){

  60.     cat <<EOF

  61. Usage: configure [options]

  62. Options: [defaults in brackets after descriptions]

  63. 

  64. Help options:

  65.   --help                   print this message

  66.   --list-decoders          show all available decoders

  67.   --list-encoders          show all available encoders

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

  69.   --list-demuxers          show all available demuxers

  70.   --list-muxers            show all available muxers

  71.   --list-parsers           show all available parsers

  72.   --list-protocols         show all available protocols

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

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

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

  76.   --list-filters           show all available filters

  77. 

  78. Standard options:

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

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

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

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

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

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

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

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

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

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

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

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

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

  92.                            not part of the dynamic linker search path

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

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

  95. 

  96. Licensing options:

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

  98.                            and binaries will be under GPL [no]

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

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

  101.                            and binaries will be unredistributable [no]

  102. 

  103. Configuration options:

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

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

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

  107.   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)

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

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

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

  111.   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]

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

  113. 

  114. Program options:

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

  116.   --disable-ffmpeg         disable ffmpeg build

  117.   --disable-ffplay         disable ffplay build

  118.   --disable-ffprobe        disable ffprobe build

  119.   --disable-ffserver       disable ffserver build

  120. 

  121. Documentation options:

  122.   --disable-doc            do not build documentation

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

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

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

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

  127. 

  128. Component options:

  129.   --disable-avdevice       disable libavdevice build

  130.   --disable-avcodec        disable libavcodec build

  131.   --disable-avformat       disable libavformat build

  132.   --disable-swresample     disable libswresample build

  133.   --disable-swscale        disable libswscale build

  134.   --disable-postproc       disable libpostproc build

  135.   --disable-avfilter       disable libavfilter build

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

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

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

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

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

  141.   --disable-dct            disable DCT code

  142.   --disable-dwt            disable DWT code

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

  144.   --disable-lsp            disable LSP code

  145.   --disable-lzo            disable LZO decoder code

  146.   --disable-mdct           disable MDCT code

  147.   --disable-rdft           disable RDFT code

  148.   --disable-fft            disable FFT code

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

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

  151. 

  152. Individual component options:

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

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

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

  156.   --disable-encoders       disable all encoders

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

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

  159.   --disable-decoders       disable all decoders

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

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

  162.   --disable-hwaccels       disable all hwaccels

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

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

  165.   --disable-muxers         disable all muxers

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

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

  168.   --disable-demuxers       disable all demuxers

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

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

  171.   --disable-parsers        disable all parsers

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

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

  174.   --disable-bsfs           disable all bitstream filters

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

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

  177.   --disable-protocols      disable all protocols

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

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

  180.   --disable-indevs         disable input devices

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

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

  183.   --disable-outdevs        disable output devices

  184.   --disable-devices        disable all devices

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

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

  187.   --disable-filters        disable all filters

  188. 

  189. External library support:

  190. 

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

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

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

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

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

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

  197. 

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

  199.   libraries must be explicitly enabled.

  200. 

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

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

  203. 

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

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

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

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

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

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

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

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

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

  213.                            if openssl is not used [no]

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

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

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

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

  218.                            needed for subtitles and ass filter [no]

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

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

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

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

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

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

  225.                            and libraw1394 [no]

  226.   --enable-libebur128      enable libebur128 for EBU R128 measurement,

  227.                            needed for loudnorm filter [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  242.                            native (de)muxer exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  267.                            native implementation exists [no]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  283.   --disable-lzma           disable lzma [autodetect]

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

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

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

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

  288.   --enable-opencl          enable OpenCL code

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

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

  291.                            if gnutls is not used [no]

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

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

  294.   --disable-sdl            disable sdl [autodetect]

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

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

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

  298.   --disable-xlib           disable xlib [autodetect]

  299.   --disable-zlib           disable zlib [autodetect]

  300. 

  301.   The following libraries provide various hardware acceleration features:

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

  303.   --enable-cuda            enable dynamically linked Nvidia CUDA code [no]

  304.   --enable-cuvid           enable Nvidia CUVID support [autodetect]

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

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

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

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

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

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

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

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

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

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

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

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

  317. 

  318. Toolchain options:

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

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

  321.                            instruction selection, may crash on older CPUs)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  370. 

  371. Advanced options (experts only):

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

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

  374.   --disable-symver         disable symbol versioning

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

  376.   --disable-safe-bitstream-reader

  377.                            disable buffer boundary checking in bitreaders

  378.                            (faster, but may crash)

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

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

  381. 

  382. Optimization options (experts only):

  383.   --disable-asm            disable all assembly optimizations

  384.   --disable-altivec        disable AltiVec optimizations

  385.   --disable-vsx            disable VSX optimizations

  386.   --disable-power8         disable POWER8 optimizations

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

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

  389.   --disable-mmx            disable MMX optimizations

  390.   --disable-mmxext         disable MMXEXT optimizations

  391.   --disable-sse            disable SSE optimizations

  392.   --disable-sse2           disable SSE2 optimizations

  393.   --disable-sse3           disable SSE3 optimizations

  394.   --disable-ssse3          disable SSSE3 optimizations

  395.   --disable-sse4           disable SSE4 optimizations

  396.   --disable-sse42          disable SSE4.2 optimizations

  397.   --disable-avx            disable AVX optimizations

  398.   --disable-xop            disable XOP optimizations

  399.   --disable-fma3           disable FMA3 optimizations

  400.   --disable-fma4           disable FMA4 optimizations

  401.   --disable-avx2           disable AVX2 optimizations

  402.   --disable-aesni          disable AESNI optimizations

  403.   --disable-armv5te        disable armv5te optimizations

  404.   --disable-armv6          disable armv6 optimizations

  405.   --disable-armv6t2        disable armv6t2 optimizations

  406.   --disable-vfp            disable VFP optimizations

  407.   --disable-neon           disable NEON optimizations

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

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

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

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

  412.   --disable-msa            disable MSA optimizations

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

  414.   --disable-mmi            disable Loongson SIMD optimizations

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

  416. 

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

  418.   --disable-debug          disable debugging symbols

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

  420.   --disable-optimizations  disable compiler optimizations

  421.   --enable-extra-warnings  enable more compiler warnings

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

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

  424.                            2 causes a slowdown at runtime.

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

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

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

  428.                            Cannot be combined with --target-exec

  429.   --enable-ftrapv          Trap arithmetic overflows

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

  431.                            \$FATE_SAMPLES at make invocation time.

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

  433.                            used only for debugging purposes)

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

  435.                            should be used only for debugging purposes)

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

  437.   --disable-random

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

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

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

  441.                            (group) and PROB the probability associated with

  442.                            NAME (default 0.5).

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

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

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

  446. 

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

  448. EOF

  449.   exit 0

  450. }

  451. 

  452. quotes='""'

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

  454.     ncolors=$(tput colors)

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

  456.         bold_color=$(tput bold)

  457.         warn_color=$(tput setaf 3)

  458.         error_color=$(tput setaf 1)

  459.         reset_color=$(tput sgr0)

  460.     fi

  461.     # 72 used instead of 80 since that's the default of pr

  462.     ncols=$(tput cols)

  463. fi

  464. : ${ncols:=72}

  465. 

  466. log(){

  467.     echo "$@" >> $logfile

  468. }

  469. 

  470. log_file(){

  471.     log BEGIN $1

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

  473.     log END $1

  474. }

  475. 

  476. warn(){

  477.     log "WARNING: $*"

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

  479. }

  480. 

  481. die(){

  482.     log "$@"

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

  484.     cat <<EOF

  485. 

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

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

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

  489. EOF

  490.     if disabled logging; then

  491.         cat <<EOF

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

  493. include the log this produces with your report.

  494. EOF

  495.     else

  496.         cat <<EOF

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

  498. solve the problem.

  499. EOF

  500.     fi

  501.     exit 1

  502. }

  503. 

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

  505. toupper(){

  506.     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

  507. }

  508. 

  509. tolower(){

  510.     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

  511. }

  512. 

  513. c_escape(){

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

  515. }

  516. 

  517. sh_quote(){

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

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

  520.     echo "$v"

  521. }

  522. 

  523. cleanws(){

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

  525. }

  526. 

  527. filter(){

  528.     pat=$1

  529.     shift

  530.     for v; do

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

  532.     done

  533. }

  534. 

  535. filter_out(){

  536.     pat=$1

  537.     shift

  538.     for v; do

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

  540.     done

  541. }

  542. 

  543. map(){

  544.     m=$1

  545.     shift

  546.     for v; do eval $m; done

  547. }

  548. 

  549. add_suffix(){

  550.     suffix=$1

  551.     shift

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

  553. }

  554. 

  555. set_all(){

  556.     value=$1

  557.     shift

  558.     for var in $*; do

  559.         eval $var=$value

  560.     done

  561. }

  562. 

  563. set_weak(){

  564.     value=$1

  565.     shift

  566.     for var; do

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

  568.     done

  569. }

  570. 

  571. sanitize_var_name(){

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

  573. }

  574. 

  575. set_safe(){

  576.     var=$1

  577.     shift

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

  579. }

  580. 

  581. get_safe(){

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

  583. }

  584. 

  585. pushvar(){

  586.     for pvar in $*; do

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

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

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

  590.     done

  591. }

  592. 

  593. popvar(){

  594.     for pvar in $*; do

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

  596.         test $level = 0 && continue

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

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

  599.         eval ${pvar}_level=$level

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

  601.     done

  602. }

  603. 

  604. enable(){

  605.     set_all yes $*

  606. }

  607. 

  608. disable(){

  609.     set_all no $*

  610. }

  611. 

  612. enable_weak(){

  613.     set_weak yes $*

  614. }

  615. 

  616. disable_weak(){

  617.     set_weak no $*

  618. }

  619. 

  620. enable_safe(){

  621.     for var; do

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

  623.     done

  624. }

  625. 

  626. disable_safe(){

  627.     for var; do

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

  629.     done

  630. }

  631. 

  632. do_enable_deep(){

  633.     for var; do

  634.         enabled $var && continue

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

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

  637.         pushvar var sgs

  638.         enable_deep $sel

  639.         popvar sgs

  640.         enable_deep_weak $sgs

  641.         popvar var

  642.     done

  643. }

  644. 

  645. enable_deep(){

  646.     do_enable_deep $*

  647.     enable $*

  648. }

  649. 

  650. enable_deep_weak(){

  651.     for var; do

  652.         disabled $var && continue

  653.         pushvar var

  654.         do_enable_deep $var

  655.         popvar var

  656.         enable_weak $var

  657.     done

  658. }

  659. 

  660. enabled(){

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

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

  663. }

  664. 

  665. disabled(){

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

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

  668. }

  669. 

  670. enabled_all(){

  671.     for opt; do

  672.         enabled $opt || return 1

  673.     done

  674. }

  675. 

  676. disabled_all(){

  677.     for opt; do

  678.         disabled $opt || return 1

  679.     done

  680. }

  681. 

  682. enabled_any(){

  683.     for opt; do

  684.         enabled $opt && return 0

  685.     done

  686. }

  687. 

  688. disabled_any(){

  689.     for opt; do

  690.         disabled $opt && return 0

  691.     done

  692.     return 1

  693. }

  694. 

  695. set_default(){

  696.     for opt; do

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

  698.     done

  699. }

  700. 

  701. is_in(){

  702.     value=$1

  703.     shift

  704.     for var in $*; do

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

  706.     done

  707.     return 1

  708. }

  709. 

  710. do_check_deps(){

  711.     for cfg; do

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

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

  714.         disabled ${cfg}_checking && continue

  715.         enable ${cfg}_checking

  716.         append allopts $cfg

  717. 

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

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

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

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

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

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

  724. 

  725.         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

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

  727.         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn

  728. 

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

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

  731.         enabled_all  $dep_all || disable $cfg

  732.         enabled_any  $dep_any || disable $cfg

  733.         disabled_any $dep_sel && disable $cfg

  734. 

  735.         if enabled $cfg; then

  736.             enable_deep $dep_sel

  737.             enable_deep_weak $dep_sgs

  738.         fi

  739. 

  740.         disable ${cfg}_checking

  741.     done

  742. }

  743. 

  744. check_deps(){

  745.     unset allopts

  746. 

  747.     do_check_deps "$@"

  748. 

  749.     for cfg in $allopts; do

  750.         enabled $cfg || continue

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

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

  753.     done

  754. }

  755. 

  756. print_config(){

  757.     pfx=$1

  758.     files=$2

  759.     shift 2

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

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

  762.         {

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

  764.             v = \$2;

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

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

  767.             for (f in files) {

  768.                 file = files[f];

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

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

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

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

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

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

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

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

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

  778.                     yesno = \$2;

  779.                     c2 = tolower(c);

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

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

  782.                 }

  783.             }

  784.         }"

  785. }

  786. 

  787. print_enabled(){

  788.     suf=$1

  789.     shift

  790.     for v; do

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

  792.     done

  793. }

  794. 

  795. append(){

  796.     var=$1

  797.     shift

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

  799. }

  800. 

  801. prepend(){

  802.     var=$1

  803.     shift

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

  805. }

  806. 

  807. unique(){

  808.     var=$1

  809.     uniq_list=""

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

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

  812.     done

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

  814. }

  815. 

  816. add_cppflags(){

  817.     append CPPFLAGS "$@"

  818. }

  819. 

  820. add_cflags(){

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

  822. }

  823. 

  824. add_cxxflags(){

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

  826. }

  827. 

  828. add_asflags(){

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

  830. }

  831. 

  832. add_objcflags(){

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

  834. }

  835. 

  836. add_ldflags(){

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

  838. }

  839. 

  840. add_ldexeflags(){

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

  842. }

  843. 

  844. add_ldlibflags(){

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

  846. }

  847. 

  848. add_stripflags(){

  849.     append ASMSTRIPFLAGS "$@"

  850. }

  851. 

  852. add_extralibs(){

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

  854. }

  855. 

  856. add_host_cppflags(){

  857.     append host_cppflags "$@"

  858. }

  859. 

  860. add_host_cflags(){

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

  862. }

  863. 

  864. add_host_ldflags(){

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

  866. }

  867. 

  868. add_compat(){

  869.     append compat_objs $1

  870.     shift

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

  872. }

  873. 

  874. check_cmd(){

  875.     log "$@"

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

  877. }

  878. 

  879. check_stat(){

  880.     log check_stat "$@"

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

  882. }

  883. 

  884. cc_o(){

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

  886. }

  887. 

  888. cc_e(){

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

  890. }

  891. 

  892. check_cc(){

  893.     log check_cc "$@"

  894.     cat > $TMPC

  895.     log_file $TMPC

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

  897. }

  898. 

  899. check_cxx(){

  900.     log check_cxx "$@"

  901.     cat > $TMPCPP

  902.     log_file $TMPCPP

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

  904. }

  905. 

  906. check_objcc(){

  907.     log check_objcc "$@"

  908.     cat > $TMPM

  909.     log_file $TMPM

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

  911. }

  912. 

  913. check_cpp(){

  914.     log check_cpp "$@"

  915.     cat > $TMPC

  916.     log_file $TMPC

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

  918. }

  919. 

  920. as_o(){

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

  922. }

  923. 

  924. check_as(){

  925.     log check_as "$@"

  926.     cat > $TMPS

  927.     log_file $TMPS

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

  929. }

  930. 

  931. check_inline_asm(){

  932.     log check_inline_asm "$@"

  933.     name="$1"

  934.     code="$2"

  935.     shift 2

  936.     disable $name

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

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

  939. EOF

  940. }

  941. 

  942. check_inline_asm_flags(){

  943.     log check_inline_asm_flags "$@"

  944.     name="$1"

  945.     code="$2"

  946.     flags=''

  947.     shift 2

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

  949.       append flags $1

  950.       shift

  951.     done;

  952.     disable $name

  953.     cat > $TMPC <<EOF

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

  955. EOF

  956.     log_file $TMPC

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

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

  959. }

  960. 

  961. check_insn(){

  962.     log check_insn "$@"

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

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

  965. }

  966. 

  967. check_yasm(){

  968.     log check_yasm "$@"

  969.     echo "$1" > $TMPS

  970.     log_file $TMPS

  971.     shift 1

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

  973. }

  974. 

  975. ld_o(){

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

  977. }

  978. 

  979. check_ld(){

  980.     log check_ld "$@"

  981.     type=$1

  982.     shift 1

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

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

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

  986.     flags=$($ldflags_filter $flags)

  987.     libs=$($ldflags_filter $libs)

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

  989. }

  990. 

  991. print_include(){

  992.     hdr=$1

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

  994.         echo "#include $hdr"    ||

  995.         echo "#include <$hdr>"

  996. }

  997. 

  998. check_code(){

  999.     log check_code "$@"

  1000.     check=$1

  1001.     headers=$2

  1002.     code=$3

  1003.     shift 3

  1004.     {

  1005.         for hdr in $headers; do

  1006.             print_include $hdr

  1007.         done

  1008.         echo "int main(void) { $code; return 0; }"

  1009.     } | check_$check "$@"

  1010. }

  1011. 

  1012. check_cppflags(){

  1013.     log check_cppflags "$@"

  1014.     check_cc "$@" <<EOF && append CPPFLAGS "$@"

  1015. int x;

  1016. EOF

  1017. }

  1018. 

  1019. test_cflags(){

  1020.     log test_cflags "$@"

  1021.     set -- $($cflags_filter "$@")

  1022.     check_cc "$@" <<EOF

  1023. int x;

  1024. EOF

  1025. }

  1026. 

  1027. check_cflags(){

  1028.     log check_cflags "$@"

  1029.     test_cflags "$@" && add_cflags "$@"

  1030. }

  1031. 

  1032. check_cxxflags(){

  1033.     log check_cxxflags "$@"

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

  1035.     check_cxx "$@" <<EOF && append CXXFLAGS "$@"

  1036. int x;

  1037. EOF

  1038. }

  1039. 

  1040. test_objcflags(){

  1041.     log test_cflags "$@"

  1042.     set -- $($cflags_filter "$@")

  1043.     check_objcc "$@" <<EOF

  1044. int x;

  1045. EOF

  1046. }

  1047. 

  1048. check_objcflags(){

  1049.     log check_cflags "$@"

  1050.     test_objcflags "$@" && add_objcflags "$@"

  1051. }

  1052. 

  1053. test_ldflags(){

  1054.     log test_ldflags "$@"

  1055.     check_ld "cc" "$@" <<EOF

  1056. int main(void){ return 0; }

  1057. EOF

  1058. }

  1059. 

  1060. check_ldflags(){

  1061.     log check_ldflags "$@"

  1062.     test_ldflags "$@" && add_ldflags "$@"

  1063. }

  1064. 

  1065. test_stripflags(){

  1066.     log test_stripflags "$@"

  1067.     # call check_cc to get a fresh TMPO

  1068.     check_cc <<EOF

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

  1070. EOF

  1071.     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO

  1072. }

  1073. 

  1074. check_stripflags(){

  1075.     log check_stripflags "$@"

  1076.     test_stripflags "$@" && add_stripflags "$@"

  1077. }

  1078. 

  1079. check_header(){

  1080.     log check_header "$@"

  1081.     header=$1

  1082.     shift

  1083.     disable_safe $header

  1084.     check_cpp "$@" <<EOF && enable_safe $header

  1085. #include <$header>

  1086. int x;

  1087. EOF

  1088. }

  1089. 

  1090. check_header_objcc(){

  1091.     log check_header_objcc "$@"

  1092.     rm -f -- "$TMPO"

  1093.     header=$1

  1094.     shift

  1095.     disable_safe $header

  1096.     {

  1097.        echo "#include <$header>"

  1098.        echo "int main(void) { return 0; }"

  1099.     } | check_objcc && check_stat "$TMPO" && enable_safe $headers

  1100. }

  1101. 

  1102. check_func(){

  1103.     log check_func "$@"

  1104.     func=$1

  1105.     shift

  1106.     disable $func

  1107.     check_ld "cc" "$@" <<EOF && enable $func

  1108. extern int $func();

  1109. int main(void){ $func(); }

  1110. EOF

  1111. }

  1112. 

  1113. check_complexfunc(){

  1114.     log check_complexfunc "$@"

  1115.     func=$1

  1116.     narg=$2

  1117.     shift 2

  1118.     test $narg = 2 && args="f, g" || args="f * I"

  1119.     disable $func

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

  1121. #include <complex.h>

  1122. #include <math.h>

  1123. float foo(complex float f, complex float g) { return $func($args); }

  1124. int main(void){ return (int) foo; }

  1125. EOF

  1126. }

  1127. 

  1128. check_mathfunc(){

  1129.     log check_mathfunc "$@"

  1130.     func=$1

  1131.     narg=$2

  1132.     shift 2

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

  1134.     disable $func

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

  1136. #include <math.h>

  1137. float foo(float f, float g) { return $func($args); }

  1138. int main(void){ return (int) foo; }

  1139. EOF

  1140. }

  1141. 

  1142. check_func_headers(){

  1143.     log check_func_headers "$@"

  1144.     headers=$1

  1145.     funcs=$2

  1146.     shift 2

  1147.     {

  1148.         for hdr in $headers; do

  1149.             print_include $hdr

  1150.         done

  1151.         for func in $funcs; do

  1152.             echo "long check_$func(void) { return (long) $func; }"

  1153.         done

  1154.         echo "int main(void) { return 0; }"

  1155.     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers

  1156. }

  1157. 

  1158. check_class_headers_cpp(){

  1159.     log check_class_headers_cpp "$@"

  1160.     headers=$1

  1161.     classes=$2

  1162.     shift 2

  1163.     {

  1164.         for hdr in $headers; do

  1165.             echo "#include <$hdr>"

  1166.         done

  1167.         echo "int main(void) { "

  1168.         i=1

  1169.         for class in $classes; do

  1170.             echo "$class obj$i;"

  1171.             i=$(expr $i + 1)

  1172.         done

  1173.         echo "return 0; }"

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

  1175. }

  1176. 

  1177. check_cpp_condition(){

  1178.     log check_cpp_condition "$@"

  1179.     header=$1

  1180.     condition=$2

  1181.     shift 2

  1182.     check_cpp "$@" <<EOF

  1183. #include <$header>

  1184. #if !($condition)

  1185. #error "unsatisfied condition: $condition"

  1186. #endif

  1187. EOF

  1188. }

  1189. 

  1190. check_lib(){

  1191.     log check_lib "$@"

  1192.     header="$1"

  1193.     func="$2"

  1194.     shift 2

  1195.     check_header $header && check_func $func "$@" && add_extralibs "$@"

  1196. }

  1197. 

  1198. check_lib2(){

  1199.     log check_lib2 "$@"

  1200.     headers="$1"

  1201.     funcs="$2"

  1202.     shift 2

  1203.     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"

  1204. }

  1205. 

  1206. check_lib_cpp(){

  1207.     log check_lib_cpp "$@"

  1208.     headers="$1"

  1209.     classes="$2"

  1210.     shift 2

  1211.     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"

  1212. }

  1213. 

  1214. check_pkg_config(){

  1215.     log check_pkg_config "$@"

  1216.     pkgandversion="$1"

  1217.     pkg="${1%% *}"

  1218.     headers="$2"

  1219.     funcs="$3"

  1220.     shift 3

  1221.     check_cmd $pkg_config --exists --print-errors $pkgandversion || return

  1222.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1223.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1224.     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&

  1225.         set_safe "${pkg}_cflags" $pkg_cflags   &&

  1226.         set_safe "${pkg}_libs"   $pkg_libs

  1227. }

  1228. 

  1229. check_exec(){

  1230.     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }

  1231. }

  1232. 

  1233. check_exec_crash(){

  1234.     code=$(cat)

  1235. 

  1236.     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

  1237.     # are safe but may not be available everywhere.  Thus we use

  1238.     # raise(SIGTERM) instead.  The check is run in a subshell so we

  1239.     # can redirect the "Terminated" message from the shell.  SIGBUS

  1240.     # is not defined by standard C so it is used conditionally.

  1241. 

  1242.     (check_exec "$@") >> $logfile 2>&1 <<EOF

  1243. #include <signal.h>

  1244. static void sighandler(int sig){

  1245.     raise(SIGTERM);

  1246. }

  1247. int foo(void){

  1248.     $code

  1249. }

  1250. int (*func_ptr)(void) = foo;

  1251. int main(void){

  1252.     signal(SIGILL, sighandler);

  1253.     signal(SIGFPE, sighandler);

  1254.     signal(SIGSEGV, sighandler);

  1255. #ifdef SIGBUS

  1256.     signal(SIGBUS, sighandler);

  1257. #endif

  1258.     return func_ptr();

  1259. }

  1260. EOF

  1261. }

  1262. 

  1263. check_type(){

  1264.     log check_type "$@"

  1265.     headers=$1

  1266.     type=$2

  1267.     shift 2

  1268.     disable_safe "$type"

  1269.     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"

  1270. }

  1271. 

  1272. check_struct(){

  1273.     log check_struct "$@"

  1274.     headers=$1

  1275.     struct=$2

  1276.     member=$3

  1277.     shift 3

  1278.     disable_safe "${struct}_${member}"

  1279.     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&

  1280.         enable_safe "${struct}_${member}"

  1281. }

  1282. 

  1283. check_builtin(){

  1284.     log check_builtin "$@"

  1285.     name=$1

  1286.     headers=$2

  1287.     builtin=$3

  1288.     shift 3

  1289.     disable "$name"

  1290.     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"

  1291. }

  1292. 

  1293. check_compile_assert(){

  1294.     log check_compile_assert "$@"

  1295.     name=$1

  1296.     headers=$2

  1297.     condition=$3

  1298.     shift 3

  1299.     disable "$name"

  1300.     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"

  1301. }

  1302. 

  1303. require(){

  1304.     name="$1"

  1305.     header="$2"

  1306.     func="$3"

  1307.     shift 3

  1308.     check_lib $header $func "$@" || die "ERROR: $name not found"

  1309. }

  1310. 

  1311. require2(){

  1312.     name="$1"

  1313.     headers="$2"

  1314.     func="$3"

  1315.     shift 3

  1316.     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"

  1317. }

  1318. 

  1319. require_cpp(){

  1320.     name="$1"

  1321.     headers="$2"

  1322.     classes="$3"

  1323.     shift 3

  1324.     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"

  1325. }

  1326. 

  1327. use_pkg_config(){

  1328.     pkg="$1"

  1329.     check_pkg_config "$@" || return 1

  1330.     add_cflags    $(get_safe "${pkg}_cflags")

  1331.     add_extralibs $(get_safe "${pkg}_libs")

  1332. }

  1333. 

  1334. require_pkg_config(){

  1335.     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"

  1336. }

  1337. 

  1338. require_libfreetype(){

  1339.     log require_libfreetype "$@"

  1340.     pkg="freetype2"

  1341.     check_cmd $pkg_config --exists --print-errors $pkg \

  1342.       || die "ERROR: $pkg not found"

  1343.     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)

  1344.     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)

  1345.     {

  1346.         echo "#include <ft2build.h>"

  1347.         echo "#include FT_FREETYPE_H"

  1348.         echo "long check_func(void) { return (long) FT_Init_FreeType; }"

  1349.         echo "int main(void) { return 0; }"

  1350.     } | check_ld "cc" $pkg_cflags $pkg_libs \

  1351.       && set_safe "${pkg}_cflags" $pkg_cflags \

  1352.       && set_safe "${pkg}_libs"   $pkg_libs \

  1353.       || die "ERROR: $pkg not found"

  1354.     add_cflags    $(get_safe "${pkg}_cflags")

  1355.     add_extralibs $(get_safe "${pkg}_libs")

  1356. }

  1357. 

  1358. hostcc_e(){

  1359.     eval printf '%s\\n' $HOSTCC_E

  1360. }

  1361. 

  1362. hostcc_o(){

  1363.     eval printf '%s\\n' $HOSTCC_O

  1364. }

  1365. 

  1366. check_host_cc(){

  1367.     log check_host_cc "$@"

  1368.     cat > $TMPC

  1369.     log_file $TMPC

  1370.     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC

  1371. }

  1372. 

  1373. check_host_cpp(){

  1374.     log check_host_cpp "$@"

  1375.     cat > $TMPC

  1376.     log_file $TMPC

  1377.     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC

  1378. }

  1379. 

  1380. check_host_cppflags(){

  1381.     log check_host_cppflags "$@"

  1382.     check_host_cc "$@" <<EOF && append host_cppflags "$@"

  1383. int x;

  1384. EOF

  1385. }

  1386. 

  1387. check_host_cflags(){

  1388.     log check_host_cflags "$@"

  1389.     set -- $($host_cflags_filter "$@")

  1390.     check_host_cc "$@" <<EOF && append host_cflags "$@"

  1391. int x;

  1392. EOF

  1393. }

  1394. 

  1395. check_host_cpp_condition(){

  1396.     log check_host_cpp_condition "$@"

  1397.     header=$1

  1398.     condition=$2

  1399.     shift 2

  1400.     check_host_cpp "$@" <<EOF

  1401. #include <$header>

  1402. #if !($condition)

  1403. #error "unsatisfied condition: $condition"

  1404. #endif

  1405. EOF

  1406. }

  1407. 

  1408. cp_if_changed(){

  1409.     cmp -s "$1" "$2" && echo "$2 is unchanged" && return

  1410.     mkdir -p "$(dirname $2)"

  1411.     $cp_f "$1" "$2"

  1412. }

  1413. 

  1414. # CONFIG_LIST contains configurable options, while HAVE_LIST is for

  1415. # system-dependent things.

  1416. 

  1417. AVCODEC_COMPONENTS="

  1418.     bsfs

  1419.     decoders

  1420.     encoders

  1421.     hwaccels

  1422.     parsers

  1423. "

  1424. 

  1425. AVDEVICE_COMPONENTS="

  1426.     indevs

  1427.     outdevs

  1428. "

  1429. AVFILTER_COMPONENTS="

  1430.     filters

  1431. "

  1432. AVFORMAT_COMPONENTS="

  1433.     demuxers

  1434.     muxers

  1435.     protocols

  1436. "

  1437. 

  1438. AVRESAMPLE_COMPONENTS=""

  1439. AVUTIL_COMPONENTS=""

  1440. 

  1441. COMPONENT_LIST="

  1442.     $AVCODEC_COMPONENTS

  1443.     $AVDEVICE_COMPONENTS

  1444.     $AVFILTER_COMPONENTS

  1445.     $AVFORMAT_COMPONENTS

  1446.     $AVRESAMPLE_COMPONENTS

  1447.     $AVUTIL_COMPONENTS

  1448. "

  1449. 

  1450. EXAMPLE_LIST="

  1451.     avio_reading_example

  1452.     avio_dir_cmd_example

  1453.     decoding_encoding_example

  1454.     demuxing_decoding_example

  1455.     extract_mvs_example

  1456.     filter_audio_example

  1457.     filtering_audio_example

  1458.     filtering_video_example

  1459.     metadata_example

  1460.     muxing_example

  1461.     qsvdec_example

  1462.     remuxing_example

  1463.     resampling_audio_example

  1464.     scaling_video_example

  1465.     transcode_aac_example

  1466.     transcoding_example

  1467. "

  1468. 

  1469. EXTERNAL_LIBRARY_LIST="

  1470.     avisynth

  1471.     bzlib

  1472.     chromaprint

  1473.     crystalhd

  1474.     decklink

  1475.     frei0r

  1476.     gcrypt

  1477.     gmp

  1478.     gnutls

  1479.     iconv

  1480.     jni

  1481.     ladspa

  1482.     libass

  1483.     libbluray

  1484.     libbs2b

  1485.     libcaca

  1486.     libcdio

  1487.     libcelt

  1488.     libdc1394

  1489.     libebur128

  1490.     libfaac

  1491.     libfdk_aac

  1492.     libflite

  1493.     libfontconfig

  1494.     libfreetype

  1495.     libfribidi

  1496.     libgme

  1497.     libgsm

  1498.     libiec61883

  1499.     libilbc

  1500.     libkvazaar

  1501.     libmodplug

  1502.     libmp3lame

  1503.     libnut

  1504.     libopencore_amrnb

  1505.     libopencore_amrwb

  1506.     libopencv

  1507.     libopenh264

  1508.     libopenjpeg

  1509.     libopenmpt

  1510.     libopus

  1511.     libpulse

  1512.     librtmp

  1513.     librubberband

  1514.     libschroedinger

  1515.     libshine

  1516.     libsmbclient

  1517.     libsnappy

  1518.     libsoxr

  1519.     libspeex

  1520.     libssh

  1521.     libtesseract

  1522.     libtheora

  1523.     libtwolame

  1524.     libv4l2

  1525.     libvidstab

  1526.     libvo_amrwbenc

  1527.     libvorbis

  1528.     libvpx

  1529.     libwavpack

  1530.     libwebp

  1531.     libx264

  1532.     libx265

  1533.     libxavs

  1534.     libxcb

  1535.     libxcb_shm

  1536.     libxcb_shape

  1537.     libxcb_xfixes

  1538.     libxvid

  1539.     libzimg

  1540.     libzmq

  1541.     libzvbi

  1542.     lzma

  1543.     mediacodec

  1544.     netcdf

  1545.     openal

  1546.     opencl

  1547.     opengl

  1548.     openssl

  1549.     schannel

  1550.     sdl

  1551.     securetransport

  1552.     videotoolbox

  1553.     x11grab

  1554.     xlib

  1555.     zlib

  1556. "

  1557. 

  1558. HWACCEL_LIBRARY_LIST="

  1559.     audiotoolbox

  1560.     cuda

  1561.     cuvid

  1562.     d3d11va

  1563.     dxva2

  1564.     libmfx

  1565.     libnpp

  1566.     mmal

  1567.     nvenc

  1568.     omx

  1569.     vaapi

  1570.     vda

  1571.     vdpau

  1572.     videotoolbox_hwaccel

  1573.     xvmc

  1574. "

  1575. 

  1576. DOCUMENT_LIST="

  1577.     doc

  1578.     htmlpages

  1579.     manpages

  1580.     podpages

  1581.     txtpages

  1582. "

  1583. 

  1584. FEATURE_LIST="

  1585.     ftrapv

  1586.     gray

  1587.     hardcoded_tables

  1588.     omx_rpi

  1589.     runtime_cpudetect

  1590.     safe_bitstream_reader

  1591.     shared

  1592.     small

  1593.     static

  1594.     swscale_alpha

  1595. "

  1596. 

  1597. LIBRARY_LIST="

  1598.     avcodec

  1599.     avdevice

  1600.     avfilter

  1601.     avformat

  1602.     avresample

  1603.     avutil

  1604.     postproc

  1605.     swresample

  1606.     swscale

  1607. "

  1608. 

  1609. LICENSE_LIST="

  1610.     gpl

  1611.     nonfree

  1612.     version3

  1613. "

  1614. 

  1615. PROGRAM_LIST="

  1616.     ffplay

  1617.     ffprobe

  1618.     ffserver

  1619.     ffmpeg

  1620. "

  1621. 

  1622. SUBSYSTEM_LIST="

  1623.     dct

  1624.     dwt

  1625.     error_resilience

  1626.     faan

  1627.     fast_unaligned

  1628.     fft

  1629.     lsp

  1630.     lzo

  1631.     mdct

  1632.     pixelutils

  1633.     network

  1634.     rdft

  1635. "

  1636. 

  1637. CONFIG_LIST="

  1638.     $COMPONENT_LIST

  1639.     $DOCUMENT_LIST

  1640.     $EXAMPLE_LIST

  1641.     $EXTERNAL_LIBRARY_LIST

  1642.     $HWACCEL_LIBRARY_LIST

  1643.     $FEATURE_LIST

  1644.     $LICENSE_LIST

  1645.     $LIBRARY_LIST

  1646.     $PROGRAM_LIST

  1647.     $SUBSYSTEM_LIST

  1648.     fontconfig

  1649.     incompatible_libav_abi

  1650.     memalign_hack

  1651.     memory_poisoning

  1652.     neon_clobber_test

  1653.     pic

  1654.     pod2man

  1655.     raise_major

  1656.     thumb

  1657.     valgrind_backtrace

  1658.     xmm_clobber_test

  1659. "

  1660. 

  1661. THREADS_LIST="

  1662.     pthreads

  1663.     os2threads

  1664.     w32threads

  1665. "

  1666. 

  1667. ATOMICS_LIST="

  1668.     atomics_gcc

  1669.     atomics_suncc

  1670.     atomics_win32

  1671. "

  1672. 

  1673. ARCH_LIST="

  1674.     aarch64

  1675.     alpha

  1676.     arm

  1677.     avr32

  1678.     avr32_ap

  1679.     avr32_uc

  1680.     bfin

  1681.     ia64

  1682.     m68k

  1683.     mips

  1684.     mips64

  1685.     parisc

  1686.     ppc

  1687.     ppc64

  1688.     s390

  1689.     sh4

  1690.     sparc

  1691.     sparc64

  1692.     tilegx

  1693.     tilepro

  1694.     tomi

  1695.     x86

  1696.     x86_32

  1697.     x86_64

  1698. "

  1699. 

  1700. ARCH_EXT_LIST_ARM="

  1701.     armv5te

  1702.     armv6

  1703.     armv6t2

  1704.     armv8

  1705.     neon

  1706.     vfp

  1707.     vfpv3

  1708.     setend

  1709. "

  1710. 

  1711. ARCH_EXT_LIST_MIPS="

  1712.     mipsfpu

  1713.     mips32r2

  1714.     mips32r5

  1715.     mips64r2

  1716.     mips32r6

  1717.     mips64r6

  1718.     mipsdsp

  1719.     mipsdspr2

  1720.     msa

  1721. "

  1722. 

  1723. ARCH_EXT_LIST_LOONGSON="

  1724.     loongson2

  1725.     loongson3

  1726.     mmi

  1727. "

  1728. 

  1729. ARCH_EXT_LIST_X86_SIMD="

  1730.     aesni

  1731.     amd3dnow

  1732.     amd3dnowext

  1733.     avx

  1734.     avx2

  1735.     fma3

  1736.     fma4

  1737.     mmx

  1738.     mmxext

  1739.     sse

  1740.     sse2

  1741.     sse3

  1742.     sse4

  1743.     sse42

  1744.     ssse3

  1745.     xop

  1746. "

  1747. 

  1748. ARCH_EXT_LIST_PPC="

  1749.     altivec

  1750.     dcbzl

  1751.     ldbrx

  1752.     power8

  1753.     ppc4xx

  1754.     vsx

  1755. "

  1756. 

  1757. ARCH_EXT_LIST_X86="

  1758.     $ARCH_EXT_LIST_X86_SIMD

  1759.     cpunop

  1760.     i686

  1761. "

  1762. 

  1763. ARCH_EXT_LIST="

  1764.     $ARCH_EXT_LIST_ARM

  1765.     $ARCH_EXT_LIST_PPC

  1766.     $ARCH_EXT_LIST_X86

  1767.     $ARCH_EXT_LIST_MIPS

  1768.     $ARCH_EXT_LIST_LOONGSON

  1769. "

  1770. 

  1771. ARCH_FEATURES="

  1772.     aligned_stack

  1773.     fast_64bit

  1774.     fast_clz

  1775.     fast_cmov

  1776.     local_aligned_8

  1777.     local_aligned_16

  1778.     local_aligned_32

  1779.     simd_align_16

  1780. "

  1781. 

  1782. BUILTIN_LIST="

  1783.     atomic_cas_ptr

  1784.     atomic_compare_exchange

  1785.     machine_rw_barrier

  1786.     MemoryBarrier

  1787.     mm_empty

  1788.     rdtsc

  1789.     sarestart

  1790.     sem_timedwait

  1791.     sync_val_compare_and_swap

  1792. "

  1793. HAVE_LIST_CMDLINE="

  1794.     inline_asm

  1795.     symver

  1796.     yasm

  1797. "

  1798. 

  1799. HAVE_LIST_PUB="

  1800.     bigendian

  1801.     fast_unaligned

  1802.     incompatible_libav_abi

  1803. "

  1804. 

  1805. HEADERS_LIST="

  1806.     alsa_asoundlib_h

  1807.     altivec_h

  1808.     arpa_inet_h

  1809.     asm_types_h

  1810.     cdio_paranoia_h

  1811.     cdio_paranoia_paranoia_h

  1812.     dispatch_dispatch_h

  1813.     dev_bktr_ioctl_bt848_h

  1814.     dev_bktr_ioctl_meteor_h

  1815.     dev_ic_bt8xx_h

  1816.     dev_video_bktr_ioctl_bt848_h

  1817.     dev_video_meteor_ioctl_meteor_h

  1818.     direct_h

  1819.     dirent_h

  1820.     dlfcn_h

  1821.     d3d11_h

  1822.     dxva_h

  1823.     ES2_gl_h

  1824.     gsm_h

  1825.     io_h

  1826.     mach_mach_time_h

  1827.     machine_ioctl_bt848_h

  1828.     machine_ioctl_meteor_h

  1829.     malloc_h

  1830.     opencv2_core_core_c_h

  1831.     openjpeg_2_1_openjpeg_h

  1832.     openjpeg_2_0_openjpeg_h

  1833.     openjpeg_1_5_openjpeg_h

  1834.     OpenGL_gl3_h

  1835.     poll_h

  1836.     sndio_h

  1837.     soundcard_h

  1838.     sys_mman_h

  1839.     sys_param_h

  1840.     sys_resource_h

  1841.     sys_select_h

  1842.     sys_soundcard_h

  1843.     sys_time_h

  1844.     sys_un_h

  1845.     sys_videoio_h

  1846.     termios_h

  1847.     udplite_h

  1848.     unistd_h

  1849.     valgrind_valgrind_h

  1850.     windows_h

  1851.     winsock2_h

  1852. "

  1853. 

  1854. INTRINSICS_LIST="

  1855.     intrinsics_neon

  1856. "

  1857. 

  1858. COMPLEX_FUNCS="

  1859.     cabs

  1860.     cexp

  1861. "

  1862. 

  1863. MATH_FUNCS="

  1864.     atanf

  1865.     atan2f

  1866.     cbrt

  1867.     cbrtf

  1868.     copysign

  1869.     cosf

  1870.     erf

  1871.     exp2

  1872.     exp2f

  1873.     expf

  1874.     hypot

  1875.     isfinite

  1876.     isinf

  1877.     isnan

  1878.     ldexpf

  1879.     llrint

  1880.     llrintf

  1881.     log2

  1882.     log2f

  1883.     log10f

  1884.     lrint

  1885.     lrintf

  1886.     powf

  1887.     rint

  1888.     round

  1889.     roundf

  1890.     sinf

  1891.     trunc

  1892.     truncf

  1893. "

  1894. 

  1895. SYSTEM_FUNCS="

  1896.     access

  1897.     aligned_malloc

  1898.     arc4random

  1899.     clock_gettime

  1900.     closesocket

  1901.     CommandLineToArgvW

  1902.     CoTaskMemFree

  1903.     CryptGenRandom

  1904.     dlopen

  1905.     fcntl

  1906.     flt_lim

  1907.     fork

  1908.     getaddrinfo

  1909.     gethrtime

  1910.     getopt

  1911.     GetProcessAffinityMask

  1912.     GetProcessMemoryInfo

  1913.     GetProcessTimes

  1914.     getrusage

  1915.     GetSystemTimeAsFileTime

  1916.     gettimeofday

  1917.     glob

  1918.     glXGetProcAddress

  1919.     gmtime_r

  1920.     inet_aton

  1921.     isatty

  1922.     jack_port_get_latency_range

  1923.     kbhit

  1924.     LoadLibrary

  1925.     localtime_r

  1926.     lstat

  1927.     lzo1x_999_compress

  1928.     mach_absolute_time

  1929.     MapViewOfFile

  1930.     memalign

  1931.     mkstemp

  1932.     mmap

  1933.     mprotect

  1934.     nanosleep

  1935.     PeekNamedPipe

  1936.     posix_memalign

  1937.     pthread_cancel

  1938.     sched_getaffinity

  1939.     SetConsoleTextAttribute

  1940.     SetConsoleCtrlHandler

  1941.     setmode

  1942.     setrlimit

  1943.     Sleep

  1944.     strerror_r

  1945.     sysconf

  1946.     sysctl

  1947.     usleep

  1948.     UTGetOSTypeFromString

  1949.     VirtualAlloc

  1950.     wglGetProcAddress

  1951. "

  1952. 

  1953. TOOLCHAIN_FEATURES="

  1954.     as_dn_directive

  1955.     as_func

  1956.     as_object_arch

  1957.     asm_mod_q

  1958.     attribute_may_alias

  1959.     attribute_packed

  1960.     ebp_available

  1961.     ebx_available

  1962.     gnu_as

  1963.     gnu_windres

  1964.     ibm_asm

  1965.     inline_asm_direct_symbol_refs

  1966.     inline_asm_labels

  1967.     inline_asm_nonlocal_labels

  1968.     pragma_deprecated

  1969.     rsync_contimeout

  1970.     symver_asm_label

  1971.     symver_gnu_asm

  1972.     vfp_args

  1973.     xform_asm

  1974.     xmm_clobbers

  1975. "

  1976. 

  1977. TYPES_LIST="

  1978.     CONDITION_VARIABLE_Ptr

  1979.     socklen_t

  1980.     struct_addrinfo

  1981.     struct_group_source_req

  1982.     struct_ip_mreq_source

  1983.     struct_ipv6_mreq

  1984.     struct_msghdr_msg_flags

  1985.     struct_pollfd

  1986.     struct_rusage_ru_maxrss

  1987.     struct_sctp_event_subscribe

  1988.     struct_sockaddr_in6

  1989.     struct_sockaddr_sa_len

  1990.     struct_sockaddr_storage

  1991.     struct_stat_st_mtim_tv_nsec

  1992.     struct_v4l2_frmivalenum_discrete

  1993. "

  1994. 

  1995. HAVE_LIST="

  1996.     $ARCH_EXT_LIST

  1997.     $(add_suffix _external $ARCH_EXT_LIST)

  1998.     $(add_suffix _inline   $ARCH_EXT_LIST)

  1999.     $ARCH_FEATURES

  2000.     $ATOMICS_LIST

  2001.     $BUILTIN_LIST

  2002.     $COMPLEX_FUNCS

  2003.     $HAVE_LIST_CMDLINE

  2004.     $HAVE_LIST_PUB

  2005.     $HEADERS_LIST

  2006.     $INTRINSICS_LIST

  2007.     $MATH_FUNCS

  2008.     $SYSTEM_FUNCS

  2009.     $THREADS_LIST

  2010.     $TOOLCHAIN_FEATURES

  2011.     $TYPES_LIST

  2012.     atomics_native

  2013.     dos_paths

  2014.     dxva2_lib

  2015.     dxva2api_cobj

  2016.     libc_msvcrt

  2017.     libdc1394_1

  2018.     libdc1394_2

  2019.     makeinfo

  2020.     makeinfo_html

  2021.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2022.     perl

  2023.     pod2man

  2024.     sdl

  2025.     section_data_rel_ro

  2026.     texi2html

  2027.     threads

  2028.     vaapi_drm

  2029.     vaapi_x11

  2030.     vdpau_x11

  2031.     winrt

  2032.     xlib

  2033. "

  2034. 

  2035. # options emitted with CONFIG_ prefix but not available on the command line

  2036. CONFIG_EXTRA="

  2037.     aandcttables

  2038.     ac3dsp

  2039.     audio_frame_queue

  2040.     audiodsp

  2041.     blockdsp

  2042.     bswapdsp

  2043.     cabac

  2044.     dirac_parse

  2045.     dvprofile

  2046.     exif

  2047.     faandct

  2048.     faanidct

  2049.     fdctdsp

  2050.     flacdsp

  2051.     fmtconvert

  2052.     frame_thread_encoder

  2053.     g722dsp

  2054.     golomb

  2055.     gplv3

  2056.     h263dsp

  2057.     h264chroma

  2058.     h264dsp

  2059.     h264pred

  2060.     h264qpel

  2061.     hpeldsp

  2062.     huffman

  2063.     huffyuvdsp

  2064.     huffyuvencdsp

  2065.     idctdsp

  2066.     iirfilter

  2067.     imdct15

  2068.     intrax8

  2069.     iso_media

  2070.     ividsp

  2071.     jpegtables

  2072.     lgplv3

  2073.     libx262

  2074.     llauddsp

  2075.     llviddsp

  2076.     lpc

  2077.     lzf

  2078.     me_cmp

  2079.     mpeg_er

  2080.     mpegaudio

  2081.     mpegaudiodsp

  2082.     mpegvideo

  2083.     mpegvideoenc

  2084.     mss34dsp

  2085.     pixblockdsp

  2086.     qpeldsp

  2087.     qsv

  2088.     qsvdec

  2089.     qsvenc

  2090.     rangecoder

  2091.     riffdec

  2092.     riffenc

  2093.     rtpdec

  2094.     rtpenc_chain

  2095.     rv34dsp

  2096.     sinewin

  2097.     snappy

  2098.     srtp

  2099.     startcode

  2100.     texturedsp

  2101.     texturedspenc

  2102.     tpeldsp

  2103.     vaapi_encode

  2104.     vc1dsp

  2105.     videodsp

  2106.     vp3dsp

  2107.     vp56dsp

  2108.     vp8dsp

  2109.     vt_bt2020

  2110.     wma_freqs

  2111.     wmv2dsp

  2112. "

  2113. 

  2114. CMDLINE_SELECT="

  2115.     $ARCH_EXT_LIST

  2116.     $CONFIG_LIST

  2117.     $HAVE_LIST_CMDLINE

  2118.     $THREADS_LIST

  2119.     asm

  2120.     cross_compile

  2121.     debug

  2122.     extra_warnings

  2123.     logging

  2124.     lto

  2125.     optimizations

  2126.     rpath

  2127.     stripping

  2128. "

  2129. 

  2130. PATHS_LIST="

  2131.     bindir

  2132.     datadir

  2133.     docdir

  2134.     incdir

  2135.     libdir

  2136.     mandir

  2137.     pkgconfigdir

  2138.     prefix

  2139.     shlibdir

  2140.     install_name_dir

  2141. "

  2142. 

  2143. CMDLINE_SET="

  2144.     $PATHS_LIST

  2145.     ar

  2146.     arch

  2147.     as

  2148.     assert_level

  2149.     build_suffix

  2150.     cc

  2151.     objcc

  2152.     cpu

  2153.     cross_prefix

  2154.     custom_allocator

  2155.     cxx

  2156.     dep_cc

  2157.     doxygen

  2158.     env

  2159.     extra_version

  2160.     gas

  2161.     host_cc

  2162.     host_cflags

  2163.     host_ld

  2164.     host_ldflags

  2165.     host_libs

  2166.     host_os

  2167.     install

  2168.     ld

  2169.     ln_s

  2170.     logfile

  2171.     malloc_prefix

  2172.     nm

  2173.     optflags

  2174.     pkg_config

  2175.     pkg_config_flags

  2176.     progs_suffix

  2177.     random_seed

  2178.     ranlib

  2179.     samples

  2180.     strip

  2181.     sws_max_filter_size

  2182.     sysinclude

  2183.     sysroot

  2184.     target_exec

  2185.     target_os

  2186.     target_path

  2187.     target_samples

  2188.     tempprefix

  2189.     toolchain

  2190.     valgrind

  2191.     yasmexe

  2192. "

  2193. 

  2194. CMDLINE_APPEND="

  2195.     extra_cflags

  2196.     extra_cxxflags

  2197.     extra_objcflags

  2198.     host_cppflags

  2199. "

  2200. 

  2201. # code dependency declarations

  2202. 

  2203. # architecture extensions

  2204. 

  2205. armv5te_deps="arm"

  2206. armv6_deps="arm"

  2207. armv6t2_deps="arm"

  2208. armv8_deps="aarch64"

  2209. neon_deps_any="aarch64 arm"

  2210. intrinsics_neon_deps="neon"

  2211. vfp_deps_any="aarch64 arm"

  2212. vfpv3_deps="vfp"

  2213. setend_deps="arm"

  2214. 

  2215. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2216. 

  2217. loongson2_deps="mips"

  2218. loongson3_deps="mips"

  2219. mipsfpu_deps="mips"

  2220. mipsdsp_deps="mips"

  2221. mipsdspr2_deps="mips"

  2222. mips32r2_deps="mips"

  2223. mips32r5_deps="mips"

  2224. mips32r6_deps="mips"

  2225. mips64r2_deps="mips"

  2226. mips64r6_deps="mips"

  2227. msa_deps="mipsfpu"

  2228. mmi_deps="mips"

  2229. 

  2230. altivec_deps="ppc"

  2231. dcbzl_deps="ppc"

  2232. ldbrx_deps="ppc"

  2233. ppc4xx_deps="ppc"

  2234. vsx_deps="altivec"

  2235. power8_deps="vsx"

  2236. 

  2237. cpunop_deps="i686"

  2238. x86_64_select="i686"

  2239. x86_64_suggest="fast_cmov"

  2240. 

  2241. amd3dnow_deps="mmx"

  2242. amd3dnowext_deps="amd3dnow"

  2243. i686_deps="x86"

  2244. mmx_deps="x86"

  2245. mmxext_deps="mmx"

  2246. sse_deps="mmxext"

  2247. sse2_deps="sse"

  2248. sse3_deps="sse2"

  2249. ssse3_deps="sse3"

  2250. sse4_deps="ssse3"

  2251. sse42_deps="sse4"

  2252. aesni_deps="sse42"

  2253. avx_deps="sse42"

  2254. xop_deps="avx"

  2255. fma3_deps="avx"

  2256. fma4_deps="avx"

  2257. avx2_deps="avx"

  2258. 

  2259. mmx_external_deps="yasm"

  2260. mmx_inline_deps="inline_asm"

  2261. mmx_suggest="mmx_external mmx_inline"

  2262. 

  2263. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2264.     eval dep=\$${ext}_deps

  2265.     eval ${ext}_external_deps='"${dep}_external"'

  2266.     eval ${ext}_inline_deps='"${dep}_inline"'

  2267.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2268. done

  2269. 

  2270. aligned_stack_if_any="aarch64 ppc x86"

  2271. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2272. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2273. fast_unaligned_if_any="aarch64 ppc x86"

  2274. simd_align_16_if_any="altivec neon sse"

  2275. 

  2276. # system capabilities

  2277. symver_if_any="symver_asm_label symver_gnu_asm"

  2278. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2279. 

  2280. # threading support

  2281. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2282. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2283. atomics_win32_if="MemoryBarrier"

  2284. atomics_native_if_any="$ATOMICS_LIST"

  2285. w32threads_deps="atomics_native"

  2286. threads_if_any="$THREADS_LIST"

  2287. 

  2288. # subsystems

  2289. dct_select="rdft"

  2290. dirac_parse_select="golomb"

  2291. error_resilience_select="me_cmp"

  2292. faandct_deps="faan fdctdsp"

  2293. faanidct_deps="faan idctdsp"

  2294. h264dsp_select="startcode"

  2295. frame_thread_encoder_deps="encoders threads"

  2296. intrax8_select="blockdsp idctdsp"

  2297. mdct_select="fft"

  2298. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2299. mpeg_er_select="error_resilience"

  2300. mpegaudio_select="mpegaudiodsp"

  2301. mpegaudiodsp_select="dct"

  2302. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2303. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2304. vc1dsp_select="h264chroma qpeldsp startcode"

  2305. rdft_select="fft"

  2306. 

  2307. # decoders / encoders

  2308. aac_decoder_select="imdct15 mdct sinewin"

  2309. aac_fixed_decoder_select="mdct sinewin"

  2310. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2311. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2312. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2313. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2314. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2315. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2316. adpcm_g722_decoder_select="g722dsp"

  2317. adpcm_g722_encoder_select="g722dsp"

  2318. aic_decoder_select="golomb idctdsp"

  2319. alac_encoder_select="lpc"

  2320. als_decoder_select="bswapdsp"

  2321. amrnb_decoder_select="lsp"

  2322. amrwb_decoder_select="lsp"

  2323. amv_decoder_select="sp5x_decoder exif"

  2324. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2325. ape_decoder_select="bswapdsp llauddsp"

  2326. apng_decoder_select="zlib"

  2327. apng_encoder_select="huffyuvencdsp zlib"

  2328. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2329. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2330. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2331. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2332. atrac1_decoder_select="mdct sinewin"

  2333. atrac3_decoder_select="mdct"

  2334. atrac3p_decoder_select="mdct sinewin"

  2335. avrn_decoder_select="exif jpegtables"

  2336. bink_decoder_select="blockdsp hpeldsp"

  2337. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2338. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2339. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2340. cllc_decoder_select="bswapdsp"

  2341. comfortnoise_encoder_select="lpc"

  2342. cook_decoder_select="audiodsp mdct sinewin"

  2343. cscd_decoder_select="lzo"

  2344. cscd_decoder_suggest="zlib"

  2345. dca_decoder_select="mdct"

  2346. dds_decoder_select="texturedsp"

  2347. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2348. dnxhd_decoder_select="blockdsp idctdsp"

  2349. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2350. dvvideo_decoder_select="dvprofile idctdsp"

  2351. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2352. dxa_decoder_select="zlib"

  2353. dxv_decoder_select="lzf texturedsp"

  2354. eac3_decoder_select="ac3_decoder"

  2355. eac3_encoder_select="ac3_encoder"

  2356. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2357. eatgq_decoder_select="aandcttables"

  2358. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2359. exr_decoder_select="zlib"

  2360. ffv1_decoder_select="golomb rangecoder"

  2361. ffv1_encoder_select="rangecoder"

  2362. ffvhuff_decoder_select="huffyuv_decoder"

  2363. ffvhuff_encoder_select="huffyuv_encoder"

  2364. fic_decoder_select="golomb"

  2365. flac_decoder_select="flacdsp golomb"

  2366. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2367. flashsv2_decoder_select="zlib"

  2368. flashsv2_encoder_select="zlib"

  2369. flashsv_decoder_select="zlib"

  2370. flashsv_encoder_select="zlib"

  2371. flv_decoder_select="h263_decoder"

  2372. flv_encoder_select="h263_encoder"

  2373. fourxm_decoder_select="blockdsp bswapdsp"

  2374. fraps_decoder_select="bswapdsp huffman"

  2375. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2376. g729_decoder_select="audiodsp"

  2377. h261_decoder_select="mpegvideo"

  2378. h261_encoder_select="aandcttables mpegvideoenc"

  2379. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2380. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2381. h263i_decoder_select="h263_decoder"

  2382. h263p_decoder_select="h263_decoder"

  2383. h263p_encoder_select="h263_encoder"

  2384. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"

  2385. h264_decoder_suggest="error_resilience"

  2386. hap_decoder_select="snappy texturedsp"

  2387. hap_encoder_deps="libsnappy"

  2388. hap_encoder_select="texturedspenc"

  2389. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2390. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2391. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2392. iac_decoder_select="imc_decoder"

  2393. imc_decoder_select="bswapdsp fft mdct sinewin"

  2394. indeo3_decoder_select="hpeldsp"

  2395. indeo4_decoder_select="ividsp"

  2396. indeo5_decoder_select="ividsp"

  2397. interplay_video_decoder_select="hpeldsp"

  2398. jpegls_decoder_select="golomb mjpeg_decoder"

  2399. jpegls_encoder_select="golomb"

  2400. jv_decoder_select="blockdsp"

  2401. lagarith_decoder_select="huffyuvdsp"

  2402. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2403. loco_decoder_select="golomb"

  2404. magicyuv_decoder_select="huffyuvdsp"

  2405. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2406. metasound_decoder_select="lsp mdct sinewin"

  2407. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2408. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2409. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2410. mjpegb_decoder_select="mjpeg_decoder"

  2411. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2412. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2413. mlp_decoder_select="mlp_parser"

  2414. motionpixels_decoder_select="bswapdsp"

  2415. mp1_decoder_select="mpegaudio"

  2416. mp1float_decoder_select="mpegaudio"

  2417. mp2_decoder_select="mpegaudio"

  2418. mp2float_decoder_select="mpegaudio"

  2419. mp3_decoder_select="mpegaudio"

  2420. mp3adu_decoder_select="mpegaudio"

  2421. mp3adufloat_decoder_select="mpegaudio"

  2422. mp3float_decoder_select="mpegaudio"

  2423. mp3on4_decoder_select="mpegaudio"

  2424. mp3on4float_decoder_select="mpegaudio"

  2425. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2426. mpc8_decoder_select="mpegaudiodsp"

  2427. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2428. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2429. mpegvideo_decoder_select="mpegvideo"

  2430. mpeg1video_decoder_select="mpegvideo"

  2431. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2432. mpeg2video_decoder_select="mpegvideo"

  2433. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2434. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2435. mpeg4_encoder_select="h263_encoder"

  2436. msa1_decoder_select="mss34dsp"

  2437. msmpeg4v1_decoder_select="h263_decoder"

  2438. msmpeg4v2_decoder_select="h263_decoder"

  2439. msmpeg4v2_encoder_select="h263_encoder"

  2440. msmpeg4v3_decoder_select="h263_decoder"

  2441. msmpeg4v3_encoder_select="h263_encoder"

  2442. mss2_decoder_select="vc1_decoder mpegvideo"

  2443. mts2_decoder_select="mss34dsp"

  2444. mxpeg_decoder_select="mjpeg_decoder"

  2445. nellymoser_decoder_select="mdct sinewin"

  2446. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2447. nuv_decoder_select="idctdsp lzo"

  2448. on2avc_decoder_select="mdct"

  2449. opus_decoder_deps="swresample"

  2450. opus_decoder_select="imdct15"

  2451. png_decoder_select="zlib"

  2452. png_encoder_select="huffyuvencdsp zlib"

  2453. prores_decoder_select="blockdsp idctdsp"

  2454. prores_encoder_select="fdctdsp"

  2455. qcelp_decoder_select="lsp"

  2456. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2457. ra_144_decoder_select="audiodsp"

  2458. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2459. ralf_decoder_select="golomb"

  2460. rawvideo_decoder_select="bswapdsp"

  2461. rscc_decoder_select="zlib"

  2462. rtjpeg_decoder_select="me_cmp"

  2463. rv10_decoder_select="h263_decoder"

  2464. rv10_encoder_select="h263_encoder"

  2465. rv20_decoder_select="h263_decoder"

  2466. rv20_encoder_select="h263_encoder"

  2467. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2468. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2469. screenpresso_decoder_select="zlib"

  2470. shorten_decoder_select="golomb"

  2471. sipr_decoder_select="lsp"

  2472. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2473. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2474. sonic_decoder_select="golomb rangecoder"

  2475. sonic_encoder_select="golomb rangecoder"

  2476. sonic_ls_encoder_select="golomb rangecoder"

  2477. sp5x_decoder_select="mjpeg_decoder"

  2478. svq1_decoder_select="hpeldsp"

  2479. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2480. svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"

  2481. svq3_decoder_suggest="zlib"

  2482. tak_decoder_select="audiodsp"

  2483. tdsc_decoder_select="zlib mjpeg_decoder"

  2484. theora_decoder_select="vp3_decoder"

  2485. thp_decoder_select="mjpeg_decoder"

  2486. tiff_decoder_suggest="zlib lzma"

  2487. tiff_encoder_suggest="zlib"

  2488. truehd_decoder_select="mlp_parser"

  2489. truemotion2_decoder_select="bswapdsp"

  2490. truespeech_decoder_select="bswapdsp"

  2491. tscc_decoder_select="zlib"

  2492. twinvq_decoder_select="mdct lsp sinewin"

  2493. txd_decoder_select="texturedsp"

  2494. utvideo_decoder_select="bswapdsp"

  2495. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2496. vble_decoder_select="huffyuvdsp"

  2497. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2498. vc1_qsv_decoder_deps="libmfx"

  2499. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2500. vc1image_decoder_select="vc1_decoder"

  2501. vorbis_decoder_select="mdct"

  2502. vorbis_encoder_select="mdct"

  2503. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2504. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2505. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2506. vp6a_decoder_select="vp6_decoder"

  2507. vp6f_decoder_select="vp6_decoder"

  2508. vp7_decoder_select="h264pred videodsp vp8dsp"

  2509. vp8_decoder_select="h264pred videodsp vp8dsp"

  2510. vp9_decoder_select="videodsp vp9_parser"

  2511. webp_decoder_select="vp8_decoder exif"

  2512. wmalossless_decoder_select="llauddsp"

  2513. wmapro_decoder_select="mdct sinewin wma_freqs"

  2514. wmav1_decoder_select="mdct sinewin wma_freqs"

  2515. wmav1_encoder_select="mdct sinewin wma_freqs"

  2516. wmav2_decoder_select="mdct sinewin wma_freqs"

  2517. wmav2_encoder_select="mdct sinewin wma_freqs"

  2518. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2519. wmv1_decoder_select="h263_decoder"

  2520. wmv1_encoder_select="h263_encoder"

  2521. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2522. wmv2_encoder_select="h263_encoder wmv2dsp"

  2523. wmv3_decoder_select="vc1_decoder"

  2524. wmv3image_decoder_select="wmv3_decoder"

  2525. xma1_decoder_select="wmapro_decoder"

  2526. xma2_decoder_select="wmapro_decoder"

  2527. zerocodec_decoder_select="zlib"

  2528. zlib_decoder_select="zlib"

  2529. zlib_encoder_select="zlib"

  2530. zmbv_decoder_select="zlib"

  2531. zmbv_encoder_select="zlib"

  2532. 

  2533. # platform codecs

  2534. audiotoolbox_deps="AudioToolbox_AudioToolbox_h"

  2535. audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"

  2536. 

  2537. # hardware accelerators

  2538. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2539. cuvid_deps="cuda"

  2540. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2541. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2542. vaapi_deps="va_va_h"

  2543. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"

  2544. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2545. vda_deps="vda_framework pthreads"

  2546. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2547. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2548. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2549. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2550. xvmc_deps="X11_extensions_XvMClib_h"

  2551. 

  2552. h263_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG4PICPARAMS"

  2553. h263_vaapi_hwaccel_deps="vaapi"

  2554. h263_vaapi_hwaccel_select="h263_decoder"

  2555. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2556. h263_videotoolbox_hwaccel_select="h263_decoder"

  2557. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2558. h264_cuvid_hwaccel_deps="cuda cuvid CUVIDH264PICPARAMS"

  2559. h264_d3d11va_hwaccel_deps="d3d11va"

  2560. h264_d3d11va_hwaccel_select="h264_decoder"

  2561. h264_dxva2_hwaccel_deps="dxva2"

  2562. h264_dxva2_hwaccel_select="h264_decoder"

  2563. h264_mediacodec_decoder_deps="mediacodec"

  2564. h264_mediacodec_hwaccel_deps="mediacodec"

  2565. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2566. h264_mmal_decoder_deps="mmal"

  2567. h264_mmal_decoder_select="mmal"

  2568. h264_mmal_hwaccel_deps="mmal"

  2569. h264_omx_encoder_deps="omx"

  2570. h264_qsv_hwaccel_deps="libmfx"

  2571. h264_vaapi_hwaccel_deps="vaapi"

  2572. h264_vaapi_hwaccel_select="h264_decoder"

  2573. h264_vda_decoder_deps="vda"

  2574. h264_vda_decoder_select="h264_decoder"

  2575. h264_vda_hwaccel_deps="vda"

  2576. h264_vda_hwaccel_select="h264_decoder"

  2577. h264_vda_old_hwaccel_deps="vda"

  2578. h264_vda_old_hwaccel_select="h264_decoder"

  2579. h264_vdpau_decoder_deps="vdpau"

  2580. h264_vdpau_decoder_select="h264_decoder"

  2581. h264_vdpau_hwaccel_deps="vdpau"

  2582. h264_vdpau_hwaccel_select="h264_decoder"

  2583. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2584. h264_videotoolbox_hwaccel_select="h264_decoder"

  2585. hevc_cuvid_hwaccel_deps="cuda cuvid CUVIDHEVCPICPARAMS"

  2586. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2587. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2588. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2589. hevc_dxva2_hwaccel_select="hevc_decoder"

  2590. hevc_qsv_hwaccel_deps="libmfx"

  2591. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2592. hevc_vaapi_hwaccel_select="hevc_decoder"

  2593. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2594. hevc_vdpau_hwaccel_select="hevc_decoder"

  2595. mjpeg_cuvid_hwaccel_deps="cuda cuvid CUVIDJPEGPICPARAMS"

  2596. mpeg_vdpau_decoder_deps="vdpau"

  2597. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2598. mpeg_xvmc_hwaccel_deps="xvmc"

  2599. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2600. mpeg1_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG2PICPARAMS"

  2601. mpeg1_vdpau_decoder_deps="vdpau"

  2602. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2603. mpeg1_vdpau_hwaccel_deps="vdpau"

  2604. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2605. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2606. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2607. mpeg1_xvmc_hwaccel_deps="xvmc"

  2608. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2609. mpeg2_crystalhd_decoder_select="crystalhd"

  2610. mpeg2_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG2PICPARAMS"

  2611. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2612. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2613. mpeg2_dxva2_hwaccel_deps="dxva2"

  2614. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2615. mpeg2_mmal_decoder_deps="mmal"

  2616. mpeg2_mmal_decoder_select="mmal"

  2617. mpeg2_mmal_hwaccel_deps="mmal"

  2618. mpeg2_qsv_hwaccel_deps="libmfx"

  2619. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2620. mpeg2_vaapi_hwaccel_deps="vaapi"

  2621. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2622. mpeg2_vdpau_hwaccel_deps="vdpau"

  2623. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2624. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2625. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2626. mpeg2_xvmc_hwaccel_deps="xvmc"

  2627. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2628. mpeg4_crystalhd_decoder_select="crystalhd"

  2629. mpeg4_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG4PICPARAMS"

  2630. mpeg4_mmal_decoder_deps="mmal"

  2631. mpeg4_mmal_decoder_select="mmal"

  2632. mpeg4_mmal_hwaccel_deps="mmal"

  2633. mpeg4_omx_encoder_deps="omx"

  2634. mpeg4_vaapi_hwaccel_deps="vaapi"

  2635. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2636. mpeg4_vdpau_decoder_deps="vdpau"

  2637. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2638. mpeg4_vdpau_hwaccel_deps="vdpau"

  2639. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2640. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2641. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2642. msmpeg4_crystalhd_decoder_select="crystalhd"

  2643. vc1_crystalhd_decoder_select="crystalhd"

  2644. vc1_cuvid_hwaccel_deps="cuda cuvid CUVIDVC1PICPARAMS"

  2645. vc1_d3d11va_hwaccel_deps="d3d11va"

  2646. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2647. vc1_dxva2_hwaccel_deps="dxva2"

  2648. vc1_dxva2_hwaccel_select="vc1_decoder"

  2649. vc1_mmal_decoder_deps="mmal"

  2650. vc1_mmal_decoder_select="mmal"

  2651. vc1_mmal_hwaccel_deps="mmal"

  2652. vc1_qsv_hwaccel_deps="libmfx"

  2653. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2654. vc1_vaapi_hwaccel_deps="vaapi"

  2655. vc1_vaapi_hwaccel_select="vc1_decoder"

  2656. vc1_vdpau_decoder_deps="vdpau"

  2657. vc1_vdpau_decoder_select="vc1_decoder"

  2658. vc1_vdpau_hwaccel_deps="vdpau"

  2659. vc1_vdpau_hwaccel_select="vc1_decoder"

  2660. vp8_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"

  2661. vp9_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"

  2662. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2663. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2664. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2665. vp9_dxva2_hwaccel_select="vp9_decoder"

  2666. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"

  2667. vp9_vaapi_hwaccel_select="vp9_decoder"

  2668. wmv3_crystalhd_decoder_select="crystalhd"

  2669. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2670. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2671. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2672. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2673. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2674. 

  2675. # hardware-accelerated codecs

  2676. omx_deps="dlopen pthreads"

  2677. omx_extralibs='$ldl'

  2678. qsvdec_select="qsv"

  2679. qsvenc_select="qsv"

  2680. vaapi_encode_deps="vaapi"

  2681. 

  2682. hwupload_cuda_filter_deps="cuda"

  2683. scale_npp_filter_deps="cuda libnpp"

  2684. 

  2685. nvenc_deps_any="dlopen LoadLibrary"

  2686. nvenc_encoder_deps="nvenc"

  2687. h263_cuvid_decoder_deps="cuda cuvid CUVIDMPEG4PICPARAMS"

  2688. h263_cuvid_decoder_select="h263_cuvid_hwaccel"

  2689. h264_cuvid_decoder_deps="cuda cuvid CUVIDH264PICPARAMS"

  2690. h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"

  2691. h264_nvenc_encoder_deps="nvenc"

  2692. h264_qsv_decoder_deps="libmfx"

  2693. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2694. h264_qsv_encoder_deps="libmfx"

  2695. h264_qsv_encoder_select="qsvenc"

  2696. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2697. h264_vaapi_encoder_select="vaapi_encode golomb"

  2698. 

  2699. hevc_cuvid_decoder_deps="cuda cuvid CUVIDHEVCPICPARAMS"

  2700. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"

  2701. hevc_nvenc_encoder_deps="nvenc"

  2702. hevc_qsv_decoder_deps="libmfx"

  2703. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2704. hevc_qsv_encoder_deps="libmfx"

  2705. hevc_qsv_encoder_select="qsvenc"

  2706. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2707. hevc_vaapi_encoder_select="vaapi_encode golomb"

  2708. mjpeg_cuvid_decoder_deps="cuda cuvid CUVIDJPEGPICPARAMS"

  2709. mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"

  2710. mpeg1_cuvid_decoder_deps="cuda cuvid CUVIDMPEG2PICPARAMS"

  2711. mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"

  2712. mpeg2_cuvid_decoder_deps="cuda cuvid CUVIDMPEG2PICPARAMS"

  2713. mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"

  2714. mpeg2_qsv_decoder_deps="libmfx"

  2715. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2716. mpeg2_qsv_encoder_deps="libmfx"

  2717. mpeg2_qsv_encoder_select="qsvenc"

  2718. mpeg4_cuvid_decoder_deps="cuda cuvid CUVIDMPEG4PICPARAMS"

  2719. mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"

  2720. nvenc_h264_encoder_deps="nvenc"

  2721. nvenc_hevc_encoder_deps="nvenc"

  2722. 

  2723. vc1_cuvid_decoder_deps="cuda cuvid CUVIDVC1PICPARAMS"

  2724. vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"

  2725. vp8_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"

  2726. vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"

  2727. vp9_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"

  2728. vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"

  2729. 

  2730. # parsers

  2731. h264_parser_select="golomb h264dsp"

  2732. hevc_parser_select="golomb"

  2733. mpegvideo_parser_select="mpegvideo"

  2734. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2735. vc1_parser_select="vc1dsp"

  2736. 

  2737. # bitstream_filters

  2738. mjpeg2jpeg_bsf_select="jpegtables"

  2739. 

  2740. # external libraries

  2741. aac_at_decoder_deps="audiotoolbox"

  2742. ac3_at_decoder_deps="audiotoolbox"

  2743. ac3_at_decoder_select="ac3_parser"

  2744. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2745. alac_at_decoder_deps="audiotoolbox"

  2746. amr_nb_at_decoder_deps="audiotoolbox"

  2747. eac3_at_decoder_deps="audiotoolbox"

  2748. eac3_at_decoder_select="ac3_parser"

  2749. gsm_ms_at_decoder_deps="audiotoolbox"

  2750. ilbc_at_decoder_deps="audiotoolbox"

  2751. mp1_at_decoder_deps="audiotoolbox"

  2752. mp2_at_decoder_deps="audiotoolbox"

  2753. mp3_at_decoder_deps="audiotoolbox"

  2754. pcm_alaw_at_decoder_deps="audiotoolbox"

  2755. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2756. qdmc_at_decoder_deps="audiotoolbox"

  2757. qdm2_at_decoder_deps="audiotoolbox"

  2758. aac_at_encoder_deps="audiotoolbox"

  2759. aac_at_encoder_select="audio_frame_queue"

  2760. alac_at_encoder_deps="audiotoolbox"

  2761. alac_at_encoder_select="audio_frame_queue"

  2762. ilbc_at_encoder_deps="audiotoolbox"

  2763. ilbc_at_encoder_select="audio_frame_queue"

  2764. pcm_alaw_at_encoder_deps="audiotoolbox"

  2765. pcm_alaw_at_encoder_select="audio_frame_queue"

  2766. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2767. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2768. chromaprint_muxer_deps="chromaprint"

  2769. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2770. libcelt_decoder_deps="libcelt"

  2771. libfaac_encoder_deps="libfaac"

  2772. libfaac_encoder_select="audio_frame_queue"

  2773. libfdk_aac_decoder_deps="libfdk_aac"

  2774. libfdk_aac_encoder_deps="libfdk_aac"

  2775. libfdk_aac_encoder_select="audio_frame_queue"

  2776. libgme_demuxer_deps="libgme"

  2777. libgsm_decoder_deps="libgsm"

  2778. libgsm_encoder_deps="libgsm"

  2779. libgsm_ms_decoder_deps="libgsm"

  2780. libgsm_ms_encoder_deps="libgsm"

  2781. libilbc_decoder_deps="libilbc"

  2782. libilbc_encoder_deps="libilbc"

  2783. libkvazaar_encoder_deps="libkvazaar"

  2784. libmodplug_demuxer_deps="libmodplug"

  2785. libmp3lame_encoder_deps="libmp3lame"

  2786. libmp3lame_encoder_select="audio_frame_queue"

  2787. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2788. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2789. libopencore_amrnb_encoder_select="audio_frame_queue"

  2790. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2791. libopenh264_decoder_deps="libopenh264"

  2792. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2793. libopenh264_encoder_deps="libopenh264"

  2794. libopenjpeg_decoder_deps="libopenjpeg"

  2795. libopenjpeg_encoder_deps="libopenjpeg"

  2796. libopenmpt_demuxer_deps="libopenmpt"

  2797. libopus_decoder_deps="libopus"

  2798. libopus_encoder_deps="libopus"

  2799. libopus_encoder_select="audio_frame_queue"

  2800. libschroedinger_decoder_deps="libschroedinger"

  2801. libschroedinger_encoder_deps="libschroedinger"

  2802. libshine_encoder_deps="libshine"

  2803. libshine_encoder_select="audio_frame_queue"

  2804. libspeex_decoder_deps="libspeex"

  2805. libspeex_encoder_deps="libspeex"

  2806. libspeex_encoder_select="audio_frame_queue"

  2807. libtheora_encoder_deps="libtheora"

  2808. libtwolame_encoder_deps="libtwolame"

  2809. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2810. libvorbis_decoder_deps="libvorbis"

  2811. libvorbis_encoder_deps="libvorbis"

  2812. libvorbis_encoder_select="audio_frame_queue"

  2813. libvpx_vp8_decoder_deps="libvpx"

  2814. libvpx_vp8_encoder_deps="libvpx"

  2815. libvpx_vp9_decoder_deps="libvpx"

  2816. libvpx_vp9_encoder_deps="libvpx"

  2817. libwavpack_encoder_deps="libwavpack"

  2818. libwebp_encoder_deps="libwebp"

  2819. libwebp_anim_encoder_deps="libwebp"

  2820. libx262_encoder_deps="libx262"

  2821. libx264_encoder_deps="libx264"

  2822. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2823. libx264rgb_encoder_select="libx264_encoder"

  2824. libx265_encoder_deps="libx265"

  2825. libxavs_encoder_deps="libxavs"

  2826. libxvid_encoder_deps="libxvid"

  2827. libzvbi_teletext_decoder_deps="libzvbi"

  2828. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2829. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2830. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2831. videotoolbox_encoder_suggest="vda_framework vt_bt2020"

  2832. vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"

  2833. 

  2834. # demuxers / muxers

  2835. ac3_demuxer_select="ac3_parser"

  2836. asf_demuxer_select="riffdec"

  2837. asf_o_demuxer_select="riffdec"

  2838. asf_muxer_select="riffenc"

  2839. asf_stream_muxer_select="asf_muxer"

  2840. avi_demuxer_select="iso_media riffdec exif"

  2841. avi_muxer_select="riffenc"

  2842. avisynth_demuxer_deps="avisynth"

  2843. avisynth_demuxer_select="riffdec"

  2844. caf_demuxer_select="iso_media riffdec"

  2845. dash_muxer_select="mp4_muxer"

  2846. dirac_demuxer_select="dirac_parser"

  2847. dts_demuxer_select="dca_parser"

  2848. dtshd_demuxer_select="dca_parser"

  2849. dv_demuxer_select="dvprofile"

  2850. dv_muxer_select="dvprofile"

  2851. dxa_demuxer_select="riffdec"

  2852. eac3_demuxer_select="ac3_parser"

  2853. f4v_muxer_select="mov_muxer"

  2854. fifo_muxer_deps="threads"

  2855. flac_demuxer_select="flac_parser"

  2856. hds_muxer_select="flv_muxer"

  2857. hls_muxer_select="mpegts_muxer"

  2858. image2_alias_pix_demuxer_select="image2_demuxer"

  2859. image2_brender_pix_demuxer_select="image2_demuxer"

  2860. ipod_muxer_select="mov_muxer"

  2861. ismv_muxer_select="mov_muxer"

  2862. libnut_demuxer_deps="libnut"

  2863. libnut_muxer_deps="libnut"

  2864. matroska_audio_muxer_select="matroska_muxer"

  2865. matroska_demuxer_select="iso_media riffdec"

  2866. matroska_demuxer_suggest="bzlib lzo zlib"

  2867. matroska_muxer_select="iso_media riffenc"

  2868. mmf_muxer_select="riffenc"

  2869. mov_demuxer_select="iso_media riffdec"

  2870. mov_demuxer_suggest="zlib"

  2871. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2872. mp3_demuxer_select="mpegaudio_parser"

  2873. mp4_muxer_select="mov_muxer"

  2874. mpegts_demuxer_select="iso_media"

  2875. mpegts_muxer_select="adts_muxer latm_muxer"

  2876. mpegtsraw_demuxer_select="mpegts_demuxer"

  2877. mxf_d10_muxer_select="mxf_muxer"

  2878. mxf_opatom_muxer_select="mxf_muxer"

  2879. nut_muxer_select="riffenc"

  2880. nuv_demuxer_select="riffdec"

  2881. oga_muxer_select="ogg_muxer"

  2882. ogg_demuxer_select="dirac_parse"

  2883. ogv_muxer_select="ogg_muxer"

  2884. opus_muxer_select="ogg_muxer"

  2885. psp_muxer_select="mov_muxer"

  2886. rtp_demuxer_select="sdp_demuxer"

  2887. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  2888. rtsp_demuxer_select="http_protocol rtpdec"

  2889. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2890. sap_demuxer_select="sdp_demuxer"

  2891. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2892. sdp_demuxer_select="rtpdec"

  2893. smoothstreaming_muxer_select="ismv_muxer"

  2894. spdif_muxer_select="aac_parser"

  2895. spx_muxer_select="ogg_muxer"

  2896. swf_demuxer_suggest="zlib"

  2897. tak_demuxer_select="tak_parser"

  2898. tg2_muxer_select="mov_muxer"

  2899. tgp_muxer_select="mov_muxer"

  2900. vobsub_demuxer_select="mpegps_demuxer"

  2901. w64_demuxer_select="wav_demuxer"

  2902. w64_muxer_select="wav_muxer"

  2903. wav_demuxer_select="riffdec"

  2904. wav_muxer_select="riffenc"

  2905. webm_muxer_select="iso_media riffenc"

  2906. webm_dash_manifest_demuxer_select="matroska_demuxer"

  2907. wtv_demuxer_select="mpegts_demuxer riffdec"

  2908. wtv_muxer_select="mpegts_muxer riffenc"

  2909. xmv_demuxer_select="riffdec"

  2910. xwma_demuxer_select="riffdec"

  2911. 

  2912. # indevs / outdevs

  2913. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2914. alsa_outdev_deps="alsa_asoundlib_h"

  2915. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2916. avfoundation_indev_select="avfoundation"

  2917. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2918. caca_outdev_deps="libcaca"

  2919. decklink_indev_deps="decklink pthreads"

  2920. decklink_indev_extralibs="-lstdc++"

  2921. decklink_outdev_deps="decklink pthreads"

  2922. decklink_outdev_extralibs="-lstdc++"

  2923. dshow_indev_deps="IBaseFilter"

  2924. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2925. dv1394_indev_deps="dv1394"

  2926. dv1394_indev_select="dv_demuxer"

  2927. fbdev_indev_deps="linux_fb_h"

  2928. fbdev_outdev_deps="linux_fb_h"

  2929. gdigrab_indev_deps="CreateDIBSection"

  2930. gdigrab_indev_extralibs="-lgdi32"

  2931. gdigrab_indev_select="bmp_decoder"

  2932. iec61883_indev_deps="libiec61883"

  2933. jack_indev_deps="jack_jack_h"

  2934. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  2935. lavfi_indev_deps="avfilter"

  2936. libcdio_indev_deps="libcdio"

  2937. libdc1394_indev_deps="libdc1394"

  2938. libv4l2_indev_deps="libv4l2"

  2939. openal_indev_deps="openal"

  2940. opengl_outdev_deps="opengl"

  2941. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2942. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2943. pulse_indev_deps="libpulse"

  2944. pulse_outdev_deps="libpulse"

  2945. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2946. qtkit_indev_select="qtkit"

  2947. sdl_outdev_deps="sdl"

  2948. sndio_indev_deps="sndio_h"

  2949. sndio_outdev_deps="sndio_h"

  2950. v4l_indev_deps="linux_videodev_h"

  2951. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2952. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2953. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2954. vfwcap_indev_extralibs="-lavicap32"

  2955. x11grab_indev_deps="x11grab"

  2956. x11grab_xcb_indev_deps="libxcb"

  2957. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2958. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2959. 

  2960. # protocols

  2961. async_protocol_deps="threads"

  2962. bluray_protocol_deps="libbluray"

  2963. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2964. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2965. ffrtmpcrypt_protocol_select="tcp_protocol"

  2966. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2967. ffrtmphttp_protocol_select="http_protocol"

  2968. ftp_protocol_select="tcp_protocol"

  2969. gopher_protocol_select="network"

  2970. http_protocol_select="tcp_protocol"

  2971. httpproxy_protocol_select="tcp_protocol"

  2972. https_protocol_select="tls_protocol"

  2973. icecast_protocol_select="http_protocol"

  2974. librtmp_protocol_deps="librtmp"

  2975. librtmpe_protocol_deps="librtmp"

  2976. librtmps_protocol_deps="librtmp"

  2977. librtmpt_protocol_deps="librtmp"

  2978. librtmpte_protocol_deps="librtmp"

  2979. libsmbclient_protocol_deps="libsmbclient gplv3"

  2980. libssh_protocol_deps="libssh"

  2981. mmsh_protocol_select="http_protocol"

  2982. mmst_protocol_select="network"

  2983. rtmp_protocol_deps="!librtmp_protocol"

  2984. rtmp_protocol_select="tcp_protocol"

  2985. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2986. rtmps_protocol_deps="!librtmp_protocol"

  2987. rtmps_protocol_select="tls_protocol"

  2988. rtmpt_protocol_select="ffrtmphttp_protocol"

  2989. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2990. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2991. rtp_protocol_select="udp_protocol"

  2992. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  2993. sctp_protocol_select="network"

  2994. srtp_protocol_select="rtp_protocol srtp"

  2995. tcp_protocol_select="network"

  2996. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  2997. tls_gnutls_protocol_select="tcp_protocol"

  2998. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  2999. tls_openssl_protocol_select="tcp_protocol"

  3000. tls_schannel_protocol_deps="schannel"

  3001. tls_schannel_protocol_select="tcp_protocol"

  3002. tls_securetransport_protocol_deps="securetransport"

  3003. tls_securetransport_protocol_select="tcp_protocol"

  3004. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3005. udp_protocol_select="network"

  3006. udplite_protocol_select="network"

  3007. unix_protocol_deps="sys_un_h"

  3008. unix_protocol_select="network"

  3009. 

  3010. # filters

  3011. afftfilt_filter_deps="avcodec"

  3012. afftfilt_filter_select="fft"

  3013. amovie_filter_deps="avcodec avformat"

  3014. aresample_filter_deps="swresample"

  3015. ass_filter_deps="libass"

  3016. asyncts_filter_deps="avresample"

  3017. atempo_filter_deps="avcodec"

  3018. atempo_filter_select="rdft"

  3019. azmq_filter_deps="libzmq"

  3020. blackframe_filter_deps="gpl"

  3021. boxblur_filter_deps="gpl"

  3022. bs2b_filter_deps="libbs2b"

  3023. colormatrix_filter_deps="gpl"

  3024. cover_rect_filter_deps="avcodec avformat gpl"

  3025. cropdetect_filter_deps="gpl"

  3026. delogo_filter_deps="gpl"

  3027. deshake_filter_select="pixelutils"

  3028. drawtext_filter_deps="libfreetype"

  3029. ebur128_filter_deps="gpl"

  3030. eq_filter_deps="gpl"

  3031. fftfilt_filter_deps="avcodec"

  3032. fftfilt_filter_select="rdft"

  3033. find_rect_filter_deps="avcodec avformat gpl"

  3034. firequalizer_filter_deps="avcodec"

  3035. firequalizer_filter_select="rdft"

  3036. flite_filter_deps="libflite"

  3037. framerate_filter_select="pixelutils"

  3038. frei0r_filter_deps="frei0r dlopen"

  3039. frei0r_src_filter_deps="frei0r dlopen"

  3040. fspp_filter_deps="gpl"

  3041. geq_filter_deps="gpl"

  3042. histeq_filter_deps="gpl"

  3043. hqdn3d_filter_deps="gpl"

  3044. interlace_filter_deps="gpl"

  3045. kerndeint_filter_deps="gpl"

  3046. ladspa_filter_deps="ladspa dlopen"

  3047. loudnorm_filter_deps="libebur128"

  3048. mcdeint_filter_deps="avcodec gpl"

  3049. movie_filter_deps="avcodec avformat"

  3050. mpdecimate_filter_deps="gpl"

  3051. mpdecimate_filter_select="pixelutils"

  3052. mptestsrc_filter_deps="gpl"

  3053. negate_filter_deps="lut_filter"

  3054. nnedi_filter_deps="gpl"

  3055. ocr_filter_deps="libtesseract"

  3056. ocv_filter_deps="libopencv"

  3057. owdenoise_filter_deps="gpl"

  3058. pan_filter_deps="swresample"

  3059. perspective_filter_deps="gpl"

  3060. phase_filter_deps="gpl"

  3061. pp7_filter_deps="gpl"

  3062. pp_filter_deps="gpl postproc"

  3063. pullup_filter_deps="gpl"

  3064. removelogo_filter_deps="avcodec avformat swscale"

  3065. repeatfields_filter_deps="gpl"

  3066. resample_filter_deps="avresample"

  3067. rubberband_filter_deps="librubberband"

  3068. sab_filter_deps="gpl swscale"

  3069. scale2ref_filter_deps="swscale"

  3070. scale_filter_deps="swscale"

  3071. select_filter_select="pixelutils"

  3072. showcqt_filter_deps="avcodec avformat swscale"

  3073. showcqt_filter_select="fft"

  3074. showfreqs_filter_deps="avcodec"

  3075. showfreqs_filter_select="fft"

  3076. showspectrum_filter_deps="avcodec"

  3077. showspectrum_filter_select="fft"

  3078. showspectrumpic_filter_deps="avcodec"

  3079. showspectrumpic_filter_select="fft"

  3080. smartblur_filter_deps="gpl swscale"

  3081. sofalizer_filter_deps="netcdf avcodec"

  3082. sofalizer_filter_select="fft"

  3083. spectrumsynth_filter_deps="avcodec"

  3084. spectrumsynth_filter_select="fft"

  3085. spp_filter_deps="gpl avcodec"

  3086. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3087. stereo3d_filter_deps="gpl"

  3088. subtitles_filter_deps="avformat avcodec libass"

  3089. super2xsai_filter_deps="gpl"

  3090. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3091. tinterlace_filter_deps="gpl"

  3092. tinterlace_merge_test_deps="tinterlace_filter"

  3093. tinterlace_pad_test_deps="tinterlace_filter"

  3094. uspp_filter_deps="gpl avcodec"

  3095. vaguedenoiser_filter_deps="gpl"

  3096. vidstabdetect_filter_deps="libvidstab"

  3097. vidstabtransform_filter_deps="libvidstab"

  3098. zmq_filter_deps="libzmq"

  3099. zoompan_filter_deps="swscale"

  3100. zscale_filter_deps="libzimg"

  3101. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3102. 

  3103. # examples

  3104. avcodec_example_deps="avcodec avutil"

  3105. avio_dir_cmd="avformat avutil"

  3106. avio_reading="avformat avcodec avutil"

  3107. decoding_encoding_example_deps="avcodec avformat avutil"

  3108. demuxing_decoding_example_deps="avcodec avformat avutil"

  3109. extract_mvs_example_deps="avcodec avformat avutil"

  3110. filter_audio_example_deps="avfilter avutil"

  3111. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3112. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3113. metadata_example_deps="avformat avutil"

  3114. muxing_example_deps="avcodec avformat avutil swscale"

  3115. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  3116. remuxing_example_deps="avcodec avformat avutil"

  3117. resampling_audio_example_deps="avutil swresample"

  3118. scaling_video_example_deps="avutil swscale"

  3119. transcode_aac_example_deps="avcodec avformat swresample"

  3120. transcoding_example_deps="avfilter avcodec avformat avutil"

  3121. 

  3122. # libraries, in linking order

  3123. avcodec_deps="avutil"

  3124. avdevice_deps="avformat avcodec avutil"

  3125. avfilter_deps="avutil"

  3126. avformat_deps="avcodec avutil"

  3127. avresample_deps="avutil"

  3128. postproc_deps="avutil gpl"

  3129. swresample_deps="avutil"

  3130. swscale_deps="avutil"

  3131. 

  3132. # programs

  3133. ffmpeg_deps="avcodec avfilter avformat swresample"

  3134. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3135.                null_filter

  3136.                setpts_filter trim_filter"

  3137. ffplay_deps="avcodec avformat swscale swresample sdl"

  3138. ffplay_libs='$sdl_libs'

  3139. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3140. ffprobe_deps="avcodec avformat"

  3141. ffserver_deps="avformat fork sarestart"

  3142. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3143. 

  3144. # documentation

  3145. podpages_deps="perl"

  3146. manpages_deps="perl pod2man"

  3147. htmlpages_deps="perl"

  3148. htmlpages_deps_any="makeinfo_html texi2html"

  3149. txtpages_deps="perl makeinfo"

  3150. doc_deps_any="manpages htmlpages podpages txtpages"

  3151. 

  3152. # default parameters

  3153. 

  3154. logfile="config.log"

  3155. 

  3156. # installation paths

  3157. prefix_default="/usr/local"

  3158. bindir_default='${prefix}/bin'

  3159. datadir_default='${prefix}/share/ffmpeg'

  3160. docdir_default='${prefix}/share/doc/ffmpeg'

  3161. incdir_default='${prefix}/include'

  3162. libdir_default='${prefix}/lib'

  3163. mandir_default='${prefix}/share/man'

  3164. 

  3165. # toolchain

  3166. ar_default="ar"

  3167. cc_default="gcc"

  3168. cxx_default="g++"

  3169. host_cc_default="gcc"

  3170. cp_f="cp -f"

  3171. doxygen_default="doxygen"

  3172. install="install"

  3173. ln_s_default="ln -s -f"

  3174. nm_default="nm -g"

  3175. objformat="elf"

  3176. pkg_config_default=pkg-config

  3177. ranlib_default="ranlib"

  3178. strip_default="strip"

  3179. version_script='--version-script'

  3180. yasmexe_default="yasm"

  3181. windres_default="windres"

  3182. 

  3183. # OS

  3184. target_os_default=$(tolower $(uname -s))

  3185. host_os=$target_os_default

  3186. 

  3187. # machine

  3188. if test "$target_os_default" = aix; then

  3189.     arch_default=$(uname -p)

  3190.     strip_default="strip -X32_64"

  3191. else

  3192.     arch_default=$(uname -m)

  3193. fi

  3194. cpu="generic"

  3195. intrinsics="none"

  3196. 

  3197. # configurable options

  3198. enable $PROGRAM_LIST

  3199. enable $DOCUMENT_LIST

  3200. enable $EXAMPLE_LIST

  3201. enable $(filter_out avresample $LIBRARY_LIST)

  3202. enable stripping

  3203. 

  3204. enable asm

  3205. enable debug

  3206. enable doc

  3207. enable faan faandct faanidct

  3208. enable optimizations

  3209. enable runtime_cpudetect

  3210. enable safe_bitstream_reader

  3211. enable static

  3212. enable swscale_alpha

  3213. enable valgrind_backtrace

  3214. 

  3215. sws_max_filter_size_default=256

  3216. set_default sws_max_filter_size

  3217. 

  3218. # Enable platform codecs by default.

  3219. enable audiotoolbox

  3220. 

  3221. # Enable hwaccels by default.

  3222. enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc

  3223. enable xlib

  3224. 

  3225. enable nvenc vda_framework videotoolbox videotoolbox_encoder

  3226. 

  3227. # build settings

  3228. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3229. LIBPREF="lib"

  3230. LIBSUF=".a"

  3231. FULLNAME='$(NAME)$(BUILDSUF)'

  3232. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3233. SLIBPREF="lib"

  3234. SLIBSUF=".so"

  3235. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3236. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3237. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3238. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3239. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3240. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3241. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3242. 

  3243. asflags_filter=echo

  3244. cflags_filter=echo

  3245. ldflags_filter=echo

  3246. 

  3247. AS_C='-c'

  3248. AS_O='-o $@'

  3249. CC_C='-c'

  3250. CC_E='-E -o $@'

  3251. CC_O='-o $@'

  3252. CXX_C='-c'

  3253. CXX_O='-o $@'

  3254. OBJCC_C='-c'

  3255. OBJCC_E='-E -o $@'

  3256. OBJCC_O='-o $@'

  3257. LD_O='-o $@'

  3258. LD_LIB='-l%'

  3259. LD_PATH='-L'

  3260. HOSTCC_C='-c'

  3261. HOSTCC_E='-E -o $@'

  3262. HOSTCC_O='-o $@'

  3263. HOSTLD_O='-o $@'

  3264. 

  3265. host_libs='-lm'

  3266. host_cflags_filter=echo

  3267. host_ldflags_filter=echo

  3268. 

  3269. target_path='$(CURDIR)'

  3270. 

  3271. # since the object filename is not given with the -MM flag, the compiler

  3272. # is only able to print the basename, and we must add the path ourselves

  3273. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3274. DEPFLAGS='-MM'

  3275. 

  3276. # find source path

  3277. if test -f configure; then

  3278.     source_path=.

  3279. else

  3280.     source_path=$(cd $(dirname "$0"); pwd)

  3281.     case "$source_path" in

  3282.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3283.     esac

  3284.     test -e "$source_path/config.h" &&

  3285.         die "Out of tree builds are impossible with config.h in source dir."

  3286. fi

  3287. 

  3288. for v in "$@"; do

  3289.     r=${v#*=}

  3290.     l=${v%"$r"}

  3291.     r=$(sh_quote "$r")

  3292.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3293. done

  3294. 

  3295. find_things(){

  3296.     thing=$1

  3297.     pattern=$2

  3298.     file=$source_path/$3

  3299.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3300. }

  3301. 

  3302. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3303. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3304. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3305. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3306. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3307. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3308. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3309. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3310. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3311. 

  3312. find_things_extern(){

  3313.     thing=$1

  3314.     pattern=$2

  3315.     file=$source_path/$3

  3316.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3317. }

  3318. 

  3319. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3320. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3321. 

  3322. ALL_COMPONENTS="

  3323.     $BSF_LIST

  3324.     $DECODER_LIST

  3325.     $DEMUXER_LIST

  3326.     $ENCODER_LIST

  3327.     $FILTER_LIST

  3328.     $HWACCEL_LIST

  3329.     $INDEV_LIST

  3330.     $MUXER_LIST

  3331.     $OUTDEV_LIST

  3332.     $PARSER_LIST

  3333.     $PROTOCOL_LIST

  3334. "

  3335. 

  3336. for n in $COMPONENT_LIST; do

  3337.     v=$(toupper ${n%s})_LIST

  3338.     eval enable \$$v

  3339.     eval ${n}_if_any="\$$v"

  3340. done

  3341. 

  3342. enable $ARCH_EXT_LIST

  3343. 

  3344. die_unknown(){

  3345.     echo "Unknown option \"$1\"."

  3346.     echo "See $0 --help for available options."

  3347.     exit 1

  3348. }

  3349. 

  3350. print_in_columns() {

  3351.     cols=$(expr $ncols / 24)

  3352.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3353. }

  3354. 

  3355. show_list() {

  3356.     suffix=_$1

  3357.     shift

  3358.     echo $* | sed s/$suffix//g | print_in_columns

  3359.     exit 0

  3360. }

  3361. 

  3362. rand_list(){

  3363.     IFS=', '

  3364.     set -- $*

  3365.     unset IFS

  3366.     for thing; do

  3367.         comp=${thing%:*}

  3368.         prob=${thing#$comp}

  3369.         prob=${prob#:}

  3370.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3371.         echo "prob ${prob:-0.5}"

  3372.         printf '%s\n' $comp

  3373.     done

  3374. }

  3375. 

  3376. do_random(){

  3377.     action=$1

  3378.     shift

  3379.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3380.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3381. }

  3382. 

  3383. for opt do

  3384.     optval="${opt#*=}"

  3385.     case "$opt" in

  3386.         --extra-ldflags=*)

  3387.             add_ldflags $optval

  3388.         ;;

  3389.         --extra-ldexeflags=*)

  3390.             add_ldexeflags $optval

  3391.         ;;

  3392.         --extra-ldlibflags=*)

  3393.             add_ldlibflags $optval

  3394.         ;;

  3395.         --extra-libs=*)

  3396.             add_extralibs $optval

  3397.         ;;

  3398.         --disable-devices)

  3399.             disable $INDEV_LIST $OUTDEV_LIST

  3400.         ;;

  3401.         --enable-debug=*)

  3402.             debuglevel="$optval"

  3403.         ;;

  3404.         --disable-programs)

  3405.             disable $PROGRAM_LIST

  3406.         ;;

  3407.         --disable-everything)

  3408.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3409.         ;;

  3410.         --disable-all)

  3411.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3412.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3413.             enable avutil

  3414.         ;;

  3415.         --enable-random|--disable-random)

  3416.             action=${opt%%-random}

  3417.             do_random ${action#--} $COMPONENT_LIST

  3418.         ;;

  3419.         --enable-random=*|--disable-random=*)

  3420.             action=${opt%%-random=*}

  3421.             do_random ${action#--} $optval

  3422.         ;;

  3423.         --enable-*=*|--disable-*=*)

  3424.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3425.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3426.             eval list=\$$(toupper $thing)_LIST

  3427.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3428.             list=$(filter "$name" $list)

  3429.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3430.             $action $list

  3431.         ;;

  3432.         --enable-?*|--disable-?*)

  3433.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3434.             if is_in $option $COMPONENT_LIST; then

  3435.                 test $action = disable && action=unset

  3436.                 eval $action \$$(toupper ${option%s})_LIST

  3437.             elif is_in $option $CMDLINE_SELECT; then

  3438.                 $action $option

  3439.             else

  3440.                 die_unknown $opt

  3441.             fi

  3442.         ;;

  3443.         --list-*)

  3444.             NAME="${opt#--list-}"

  3445.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3446.             NAME=${NAME%s}

  3447.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3448.         ;;

  3449.         --help|-h) show_help

  3450.         ;;

  3451.         --fatal-warnings) enable fatal_warnings

  3452.         ;;

  3453.         *)

  3454.             optname="${opt%%=*}"

  3455.             optname="${optname#--}"

  3456.             optname=$(echo "$optname" | sed 's/-/_/g')

  3457.             if is_in $optname $CMDLINE_SET; then

  3458.                 eval $optname='$optval'

  3459.             elif is_in $optname $CMDLINE_APPEND; then

  3460.                 append $optname "$optval"

  3461.             else

  3462.                 die_unknown $opt

  3463.             fi

  3464.         ;;

  3465.     esac

  3466. done

  3467. 

  3468. for e in $env; do

  3469.     eval "export $e"

  3470. done

  3471. 

  3472. disabled logging && logfile=/dev/null

  3473. 

  3474. # Disable all the library-specific components if the library itself

  3475. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3476. 

  3477. disable_components(){

  3478.     disabled ${1} && disable $(

  3479.         eval components="\$$(toupper ${1})_COMPONENTS"

  3480.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3481.     )

  3482. }

  3483. 

  3484. map 'disable_components $v' $LIBRARY_LIST

  3485. 

  3486. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3487. set >> $logfile

  3488. 

  3489. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3490. 

  3491. case "$toolchain" in

  3492.     *-asan)

  3493.         cc_default="${toolchain%-asan}"

  3494.         add_cflags  -fsanitize=address

  3495.         add_ldflags -fsanitize=address

  3496.     ;;

  3497.     *-msan)

  3498.         cc_default="${toolchain%-msan}"

  3499.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3500.         add_ldflags -fsanitize=memory

  3501.     ;;

  3502.     *-tsan)

  3503.         cc_default="${toolchain%-tsan}"

  3504.         add_cflags  -fsanitize=thread -pie

  3505.         add_ldflags -fsanitize=thread -pie

  3506.         case "$toolchain" in

  3507.             gcc-tsan)

  3508.                 add_cflags  -fPIC

  3509.                 add_ldflags -fPIC

  3510.                 ;;

  3511.         esac

  3512.     ;;

  3513.     *-usan)

  3514.         cc_default="${toolchain%-usan}"

  3515.         add_cflags  -fsanitize=undefined

  3516.         add_ldflags -fsanitize=undefined

  3517.     ;;

  3518.     valgrind-*)

  3519.         target_exec_default="valgrind"

  3520.         case "$toolchain" in

  3521.             valgrind-massif)

  3522.                 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"

  3523.                 ;;

  3524.             valgrind-memcheck)

  3525.                 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"

  3526.                 ;;

  3527.         esac

  3528.     ;;

  3529.     msvc)

  3530.         # Check whether the current MSVC version needs the C99 converter.

  3531.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3532.         # support enough of C99 to build ffmpeg. Default to the new

  3533.         # behaviour if the regexp was unable to match anything, since this

  3534.         # successfully parses the version number of existing supported

  3535.         # versions that require the converter (MSVC 2010 and 2012).

  3536.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3537.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3538.             cc_default="cl"

  3539.         else

  3540.             cc_default="c99wrap cl"

  3541.         fi

  3542.         ld_default="$source_path/compat/windows/mslink"

  3543.         nm_default="dumpbin -symbols"

  3544.         ar_default="lib"

  3545.         case "$arch" in

  3546.         arm*)

  3547.             as_default="armasm"

  3548.             ;;

  3549.         esac

  3550.         target_os_default="win32"

  3551.         # Use a relative path for TMPDIR. This makes sure all the

  3552.         # ffconf temp files are written with a relative path, avoiding

  3553.         # issues with msys/win32 path conversion for MSVC parameters

  3554.         # such as -Fo<file> or -out:<file>.

  3555.         TMPDIR=.

  3556.     ;;

  3557.     icl)

  3558.         cc_default="icl"

  3559.         ld_default="xilink"

  3560.         nm_default="dumpbin -symbols"

  3561.         ar_default="xilib"

  3562.         target_os_default="win32"

  3563.         TMPDIR=.

  3564.     ;;

  3565.     gcov)

  3566.         add_cflags  -fprofile-arcs -ftest-coverage

  3567.         add_ldflags -fprofile-arcs -ftest-coverage

  3568.     ;;

  3569.     llvm-cov)

  3570.         add_cflags -fprofile-arcs -ftest-coverage

  3571.         add_ldflags --coverage

  3572.     ;;

  3573.     hardened)

  3574.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3575.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3576.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3577.     ;;

  3578.     ?*)

  3579.         die "Unknown toolchain $toolchain"

  3580.     ;;

  3581. esac

  3582. 

  3583. test -n "$cross_prefix" && enable cross_compile

  3584. 

  3585. if enabled cross_compile; then

  3586.     test -n "$arch" && test -n "$target_os" ||

  3587.         die "Must specify target arch and OS when cross-compiling"

  3588. fi

  3589. 

  3590. ar_default="${cross_prefix}${ar_default}"

  3591. cc_default="${cross_prefix}${cc_default}"

  3592. cxx_default="${cross_prefix}${cxx_default}"

  3593. nm_default="${cross_prefix}${nm_default}"

  3594. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3595. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3596.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3597. else

  3598.     ranlib_default="${cross_prefix}${ranlib_default}"

  3599. fi

  3600. strip_default="${cross_prefix}${strip_default}"

  3601. windres_default="${cross_prefix}${windres_default}"

  3602. 

  3603. sysinclude_default="${sysroot}/usr/include"

  3604. 

  3605. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3606.     target_exec target_os yasmexe

  3607. enabled cross_compile || host_cc_default=$cc

  3608. set_default host_cc

  3609. 

  3610. pkg_config_fail_message=""

  3611. if ! $pkg_config --version >/dev/null 2>&1; then

  3612.     warn "$pkg_config not found, library detection may fail."

  3613.     pkg_config=false

  3614. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3615.     pkg_config_fail_message="

  3616. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3617. fi

  3618. 

  3619. if test $doxygen != $doxygen_default && \

  3620.   ! $doxygen --version >/dev/null 2>&1; then

  3621.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3622. fi

  3623. 

  3624. exesuf() {

  3625.     case $1 in

  3626.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3627.     esac

  3628. }

  3629. 

  3630. EXESUF=$(exesuf $target_os)

  3631. HOSTEXESUF=$(exesuf $host_os)

  3632. 

  3633. # set temporary file name

  3634. : ${TMPDIR:=$TEMPDIR}

  3635. : ${TMPDIR:=$TMP}

  3636. : ${TMPDIR:=/tmp}

  3637. 

  3638. if [ -n "$tempprefix" ] ; then

  3639.     mktemp(){

  3640.         echo $tempprefix.${HOSTNAME}.${UID}

  3641.     }

  3642. elif ! check_cmd mktemp -u XXXXXX; then

  3643.     # simple replacement for missing mktemp

  3644.     # NOT SAFE FOR GENERAL USE

  3645.     mktemp(){

  3646.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3647.     }

  3648. fi

  3649. 

  3650. tmpfile(){

  3651.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3652.         (set -C; exec > $tmp) 2>/dev/null ||

  3653.         die "Unable to create temporary file in $TMPDIR."

  3654.     append TMPFILES $tmp

  3655.     eval $1=$tmp

  3656. }

  3657. 

  3658. trap 'rm -f -- $TMPFILES' EXIT

  3659. 

  3660. tmpfile TMPASM .asm

  3661. tmpfile TMPC   .c

  3662. tmpfile TMPCPP .cpp

  3663. tmpfile TMPE   $EXESUF

  3664. tmpfile TMPH   .h

  3665. tmpfile TMPM   .m

  3666. tmpfile TMPO   .o

  3667. tmpfile TMPS   .S

  3668. tmpfile TMPSH  .sh

  3669. tmpfile TMPV   .ver

  3670. 

  3671. unset -f mktemp

  3672. 

  3673. chmod +x $TMPE

  3674. 

  3675. # make sure we can execute files in $TMPDIR

  3676. cat > $TMPSH 2>> $logfile <<EOF

  3677. #! /bin/sh

  3678. EOF

  3679. chmod +x $TMPSH >> $logfile 2>&1

  3680. if ! $TMPSH >> $logfile 2>&1; then

  3681.     cat <<EOF

  3682. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3683. variable to another directory and make sure that it is not mounted noexec.

  3684. EOF

  3685.     die "Sanity test failed."

  3686. fi

  3687. 

  3688. armasm_flags(){

  3689.     for flag; do

  3690.         case $flag in

  3691.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3692.             # be passed to gas-preprocessor

  3693.             -M[TD]*)                                            ;;

  3694.             *)                  echo $flag                      ;;

  3695.         esac

  3696.    done

  3697. }

  3698. 

  3699. ccc_flags(){

  3700.     for flag; do

  3701.         case $flag in

  3702.             -std=c99)           echo -c99                       ;;

  3703.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3704.             -mieee)             echo -ieee                      ;;

  3705.             -O*|-fast)          echo $flag                      ;;

  3706.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3707.             -g)                 echo -g3                        ;;

  3708.             -Wall)              echo -msg_enable level2         ;;

  3709.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3710.             -Wl,*)              echo $flag                      ;;

  3711.             -f*|-W*)                                            ;;

  3712.             *)                  echo $flag                      ;;

  3713.         esac

  3714.    done

  3715. }

  3716. 

  3717. cparser_flags(){

  3718.     for flag; do

  3719.         case $flag in

  3720.             -Wno-switch)             echo -Wno-switch-enum ;;

  3721.             -Wno-format-zero-length) ;;

  3722.             -Wdisabled-optimization) ;;

  3723.             -Wno-pointer-sign)       echo -Wno-other ;;

  3724.             *)                       echo $flag ;;

  3725.         esac

  3726.     done

  3727. }

  3728. 

  3729. msvc_common_flags(){

  3730.     for flag; do

  3731.         case $flag in

  3732.             # In addition to specifying certain flags under the compiler

  3733.             # specific filters, they must be specified here as well or else the

  3734.             # generic catch all at the bottom will print the original flag.

  3735.             -Wall)                ;;

  3736.             -std=c99)             ;;

  3737.             # Common flags

  3738.             -fomit-frame-pointer) ;;

  3739.             -g)                   echo -Z7 ;;

  3740.             -fno-math-errno)      ;;

  3741.             -fno-common)          ;;

  3742.             -fno-signed-zeros)    ;;

  3743.             -fPIC)                ;;

  3744.             -mthumb)              ;;

  3745.             -march=*)             ;;

  3746.             -lz)                  echo zlib.lib ;;

  3747.             -lavifil32)           echo vfw32.lib ;;

  3748.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3749.             -lx264)               echo libx264.lib ;;

  3750.             -l*)                  echo ${flag#-l}.lib ;;

  3751.             -LARGEADDRESSAWARE)   echo $flag ;;

  3752.             -L*)                  echo -libpath:${flag#-L} ;;

  3753.             *)                    echo $flag ;;

  3754.         esac

  3755.     done

  3756. }

  3757. 

  3758. msvc_flags(){

  3759.     msvc_common_flags "$@"

  3760.     for flag; do

  3761.         case $flag in

  3762.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3763.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3764.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3765.                                        -wd4307 \

  3766.                                        -wd4273 -wd4554 -wd4701 ;;

  3767.         esac

  3768.     done

  3769. }

  3770. 

  3771. icl_flags(){

  3772.     msvc_common_flags "$@"

  3773.     for flag; do

  3774.         case $flag in

  3775.             # Despite what Intel's documentation says -Wall, which is supported

  3776.             # on Windows, does enable remarks so disable them here.

  3777.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3778.             -std=c99)             echo -Qstd=c99 ;;

  3779.             -flto)                echo -ipo ;;

  3780.         esac

  3781.     done

  3782. }

  3783. 

  3784. icc_flags(){

  3785.     for flag; do

  3786.         case $flag in

  3787.             -flto)                echo -ipo ;;

  3788.             *)                    echo $flag ;;

  3789.         esac

  3790.     done

  3791. }

  3792. 

  3793. pgi_flags(){

  3794.     for flag; do

  3795.         case $flag in

  3796.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3797.             -fomit-frame-pointer) echo -Mnoframe ;;

  3798.             -g)                   echo -gopt ;;

  3799.             *)                    echo $flag ;;

  3800.         esac

  3801.     done

  3802. }

  3803. 

  3804. suncc_flags(){

  3805.     for flag; do

  3806.         case $flag in

  3807.             -march=*|-mcpu=*)

  3808.                 case "${flag#*=}" in

  3809.                     native)                   echo -xtarget=native       ;;

  3810.                     v9|niagara)               echo -xarch=sparc          ;;

  3811.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3812.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3813.                     i586|pentium)             echo -xchip=pentium        ;;

  3814.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3815.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3816.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3817.                     pentium4*)          echo -xtarget=pentium4           ;;

  3818.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3819.                     *-sse3)             echo -xarch=sse3                 ;;

  3820.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3821.                     bonnell)                   echo -xarch=ssse3         ;;

  3822.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3823.                     westmere)                  echo -xtarget=westmere    ;;

  3824.                     silvermont)                echo -xarch=sse4_2        ;;

  3825.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3826.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  3827.                                                echo -xarch=avx           ;;

  3828.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3829.                     btver1)                    echo -xarch=amdsse4a      ;;

  3830.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  3831.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3832.                     k8|opteron|athlon64|athlon-fx)

  3833.                                                echo -xarch=sse2a         ;;

  3834.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3835.                 esac

  3836.                 ;;

  3837.             -std=c99)             echo -xc99              ;;

  3838.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3839.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3840.             -W*,*)                echo $flag              ;;

  3841.             -f*-*|-W*|-mimpure-text)                      ;;

  3842.             -shared)              echo -G                 ;;

  3843.             *)                    echo $flag              ;;

  3844.         esac

  3845.     done

  3846. }

  3847. 

  3848. tms470_flags(){

  3849.     for flag; do

  3850.         case $flag in

  3851.             -march=*|-mcpu=*)

  3852.                 case "${flag#*=}" in

  3853.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3854.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3855.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3856.                     armv6*|arm11*)          echo -mv=6   ;;

  3857.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3858.                                             echo -mv=5e  ;;

  3859.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3860.                 esac

  3861.                 ;;

  3862.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3863.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3864.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3865.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3866.             -msoft-float)   echo --float_support=vfplib       ;;

  3867.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3868.             -g)             echo -g -mn                       ;;

  3869.             -pds=*)         echo $flag                        ;;

  3870.             -D*|-I*)        echo $flag                        ;;

  3871.             --gcc|--abi=*)  echo $flag                        ;;

  3872.             -me)            echo $flag                        ;;

  3873.         esac

  3874.     done

  3875. }

  3876. 

  3877. probe_cc(){

  3878.     pfx=$1

  3879.     _cc=$2

  3880.     first=$3

  3881. 

  3882.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3883.     unset _ld_o _ldflags _ld_lib _ld_path

  3884.     unset _depflags _DEPCMD _DEPFLAGS

  3885.     _flags_filter=echo

  3886. 

  3887.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3888.         true # no-op to avoid reading stdin in following checks

  3889.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3890.         _type=llvm_gcc

  3891.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3892.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3893.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3894.         _cflags_speed='-O3'

  3895.         _cflags_size='-Os'

  3896.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3897.         _type=gcc

  3898.         gcc_version=$($_cc --version | head -n1)

  3899.         gcc_basever=$($_cc -dumpversion)

  3900.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3901.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3902.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3903.         case $gcc_basever in

  3904.             2) ;;

  3905.             2.*) ;;

  3906.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3907.         esac

  3908.         if [ "$first" = true ]; then

  3909.             case $gcc_basever in

  3910.                 4.2*)

  3911.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3912.             esac

  3913.         fi

  3914.         _cflags_speed='-O3'

  3915.         _cflags_size='-Os'

  3916.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3917.         _type=icc

  3918.         _ident=$($_cc --version | head -n1)

  3919.         _depflags='-MMD'

  3920.         _cflags_speed='-O3'

  3921.         _cflags_size='-Os'

  3922.         _cflags_noopt='-O1'

  3923.         _flags_filter=icc_flags

  3924.     elif $_cc -v 2>&1 | grep -q xlc; then

  3925.         _type=xlc

  3926.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3927.         _cflags_speed='-O5'

  3928.         _cflags_size='-O5 -qcompact'

  3929.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3930.         _type=ccc

  3931.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3932.         _DEPFLAGS='-M'

  3933.         _cflags_speed='-fast'

  3934.         _cflags_size='-O1'

  3935.         _flags_filter=ccc_flags

  3936.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3937.         test -d "$sysroot" || die "No valid sysroot specified."

  3938.         _type=armcc

  3939.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3940.         armcc_conf="$PWD/armcc.conf"

  3941.         $_cc --arm_linux_configure                 \

  3942.              --arm_linux_config_file="$armcc_conf" \

  3943.              --configure_sysroot="$sysroot"        \

  3944.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3945.              die "Error creating armcc configuration file."

  3946.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3947.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3948.         as_default="${cross_prefix}gcc"

  3949.         _depflags='-MMD'

  3950.         _cflags_speed='-O3'

  3951.         _cflags_size='-Os'

  3952.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3953.         _type=tms470

  3954.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3955.         _flags='--gcc --abi=eabi -me'

  3956.         _cc_e='-ppl -fe=$@'

  3957.         _cc_o='-fe=$@'

  3958.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3959.         _cflags_speed='-O3 -mf=5'

  3960.         _cflags_size='-O3 -mf=2'

  3961.         _flags_filter=tms470_flags

  3962.     elif $_cc -v 2>&1 | grep -q clang; then

  3963.         _type=clang

  3964.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3965.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3966.         _cflags_speed='-O3'

  3967.         _cflags_size='-Os'

  3968.     elif $_cc -V 2>&1 | grep -q Sun; then

  3969.         _type=suncc

  3970.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3971.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3972.         _DEPFLAGS='-xM1 -xc99'

  3973.         _ldflags='-std=c99'

  3974.         _cflags_speed='-O5'

  3975.         _cflags_size='-O5 -xspace'

  3976.         _flags_filter=suncc_flags

  3977.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3978.         _type=pathscale

  3979.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3980.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3981.         _cflags_speed='-O2'

  3982.         _cflags_size='-Os'

  3983.         _flags_filter='filter_out -Wdisabled-optimization'

  3984.     elif $_cc -v 2>&1 | grep -q Open64; then

  3985.         _type=open64

  3986.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3987.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3988.         _cflags_speed='-O2'

  3989.         _cflags_size='-Os'

  3990.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3991.     elif $_cc -V 2>&1 | grep -q Portland; then

  3992.         _type=pgi

  3993.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3994.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  3995.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  3996.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  3997.         _cflags_noopt="-O"

  3998.         _flags_filter=pgi_flags

  3999.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4000.         _type=armasm

  4001.         _ident=$($_cc | head -n1)

  4002.         # 4509: "This form of conditional instruction is deprecated"

  4003.         _flags="-nologo -ignore 4509"

  4004.         _flags_filter=armasm_flags

  4005.     elif $_cc 2>&1 | grep -q Intel; then

  4006.         _type=icl

  4007.         _ident=$($_cc 2>&1 | head -n1)

  4008.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4009.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4010.         # versions (tested) as well.

  4011.         _cflags_speed="-O2"

  4012.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4013.         if $_cc 2>&1 | grep -q Linker; then

  4014.             _ld_o='-out:$@'

  4015.         else

  4016.             _ld_o='-Fe$@'

  4017.         fi

  4018.         _cc_o='-Fo$@'

  4019.         _cc_e='-P'

  4020.         _flags_filter=icl_flags

  4021.         _ld_lib='lib%.a'

  4022.         _ld_path='-libpath:'

  4023.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4024.         _flags='-nologo -Qdiag-error:4044,10157'

  4025.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4026.         # with MSVC which enables it by default.

  4027.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4028.         disable stripping

  4029.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4030.         _type=msvc

  4031.         _ident=$($_cc 2>&1 | head -n1)

  4032.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4033.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4034.         _cflags_speed="-O2"

  4035.         _cflags_size="-O1"

  4036.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4037.             _ld_o='-out:$@'

  4038.         else

  4039.             _ld_o='-Fe$@'

  4040.         fi

  4041.         _cc_o='-Fo$@'

  4042.         _cc_e='-P -Fi$@'

  4043.         _flags_filter=msvc_flags

  4044.         _ld_lib='lib%.a'

  4045.         _ld_path='-libpath:'

  4046.         _flags='-nologo'

  4047.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'

  4048.         disable stripping

  4049.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4050.         _type=cparser

  4051.         _ident=$($_cc --version | head -n1)

  4052.         _depflags='-MMD'

  4053.         _cflags_speed='-O4'

  4054.         _cflags_size='-O2'

  4055.         _flags_filter=cparser_flags

  4056.     fi

  4057. 

  4058.     eval ${pfx}_type=\$_type

  4059.     eval ${pfx}_ident=\$_ident

  4060. }

  4061. 

  4062. set_ccvars(){

  4063.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4064.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4065.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4066. 

  4067.     if [ -n "$_depflags" ]; then

  4068.         eval ${1}_DEPFLAGS=\$_depflags

  4069.     else

  4070.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4071.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4072.         eval DEP${1}FLAGS=\$_flags

  4073.     fi

  4074. }

  4075. 

  4076. probe_cc cc "$cc" "true"

  4077. cflags_filter=$_flags_filter

  4078. cflags_speed=$_cflags_speed

  4079. cflags_size=$_cflags_size

  4080. cflags_noopt=$_cflags_noopt

  4081. add_cflags $_flags $_cflags

  4082. cc_ldflags=$_ldflags

  4083. set_ccvars CC

  4084. 

  4085. probe_cc hostcc "$host_cc"

  4086. host_cflags_filter=$_flags_filter

  4087. add_host_cflags  $_flags $_cflags

  4088. set_ccvars HOSTCC

  4089. 

  4090. test -n "$cc_type" && enable $cc_type ||

  4091.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4092. 

  4093. : ${as_default:=$cc}

  4094. : ${objcc_default:=$cc}

  4095. : ${dep_cc_default:=$cc}

  4096. : ${ld_default:=$cc}

  4097. : ${host_ld_default:=$host_cc}

  4098. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4099. 

  4100. probe_cc as "$as"

  4101. asflags_filter=$_flags_filter

  4102. add_asflags $_flags $_cflags

  4103. set_ccvars AS

  4104. 

  4105. probe_cc objcc "$objcc"

  4106. objcflags_filter=$_flags_filter

  4107. add_objcflags $_flags $_cflags

  4108. set_ccvars OBJC

  4109. 

  4110. probe_cc ld "$ld"

  4111. ldflags_filter=$_flags_filter

  4112. add_ldflags $_flags $_ldflags

  4113. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4114. LD_O=${_ld_o-$LD_O}

  4115. LD_LIB=${_ld_lib-$LD_LIB}

  4116. LD_PATH=${_ld_path-$LD_PATH}

  4117. 

  4118. probe_cc hostld "$host_ld"

  4119. host_ldflags_filter=$_flags_filter

  4120. add_host_ldflags $_flags $_ldflags

  4121. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4122. 

  4123. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4124.     probe_cc depcc "$dep_cc"

  4125.     CCDEP=${_DEPCMD:-$DEPCMD}

  4126.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4127.     DEPCCFLAGS=$_flags

  4128. fi

  4129. 

  4130. if $ar 2>&1 | grep -q Microsoft; then

  4131.     arflags="-nologo"

  4132.     ar_o='-out:$@'

  4133. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4134.     arflags="rq"

  4135.     ar_o='$@'

  4136. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4137.     arflags='-Xany -r -c'

  4138.     ar_o='$@'

  4139. elif $ar 2>&1 | grep -q "\[D\] "; then

  4140.     arflags="rcD"

  4141.     ar_o='$@'

  4142. else

  4143.     arflags="rc"

  4144.     ar_o='$@'

  4145. fi

  4146. 

  4147. add_cflags $extra_cflags

  4148. add_cxxflags $extra_cxxflags

  4149. add_objcflags $extra_objcflags

  4150. add_asflags $extra_cflags

  4151. 

  4152. if test -n "$sysroot"; then

  4153.     case "$cc_type" in

  4154.         gcc|llvm_gcc|clang)

  4155.             add_cppflags --sysroot="$sysroot"

  4156.             add_ldflags --sysroot="$sysroot"

  4157. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4158.             add_cppflags -isysroot "$sysroot"

  4159.             add_ldflags -isysroot "$sysroot"

  4160.         ;;

  4161.         tms470)

  4162.             add_cppflags -I"$sysinclude"

  4163.             add_ldflags  --sysroot="$sysroot"

  4164.         ;;

  4165.     esac

  4166. fi

  4167. 

  4168. if test "$cpu" = host; then

  4169.     enabled cross_compile &&

  4170.         die "--cpu=host makes no sense when cross-compiling."

  4171. 

  4172.     case "$cc_type" in

  4173.         gcc|llvm_gcc)

  4174.             check_native(){

  4175.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4176.                 sed -n "/cc1.*$1=/{

  4177.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4178.                             p

  4179.                             q

  4180.                         }" $TMPE

  4181.             }

  4182.             cpu=$(check_native -march || check_native -mcpu)

  4183.         ;;

  4184.         clang)

  4185.             check_native(){

  4186.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4187.                 sed -n "/cc1.*-target-cpu /{

  4188.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4189.                             p

  4190.                             q

  4191.                         }" $TMPE

  4192.             }

  4193.             cpu=$(check_native -march)

  4194.         ;;

  4195.     esac

  4196. 

  4197.     test "${cpu:-host}" = host &&

  4198.         die "--cpu=host not supported with compiler $cc"

  4199. fi

  4200. 

  4201. # Deal with common $arch aliases

  4202. case "$arch" in

  4203.     aarch64|arm64)

  4204.         arch="aarch64"

  4205.     ;;

  4206.     arm*|iPad*|iPhone*)

  4207.         arch="arm"

  4208.     ;;

  4209.     mips*|IP*)

  4210.         case "$arch" in

  4211.         *el)

  4212.             add_cppflags -EL

  4213.             add_ldflags -EL

  4214.         ;;

  4215.         *eb)

  4216.             add_cppflags -EB

  4217.             add_ldflags -EB

  4218.         ;;

  4219.         esac

  4220.         arch="mips"

  4221.     ;;

  4222.     parisc*|hppa*)

  4223.         arch="parisc"

  4224.     ;;

  4225.     "Power Macintosh"|ppc*|powerpc*)

  4226.         arch="ppc"

  4227.     ;;

  4228.     s390|s390x)

  4229.         arch="s390"

  4230.     ;;

  4231.     sh4|sh)

  4232.         arch="sh4"

  4233.     ;;

  4234.     sun4*|sparc*)

  4235.         arch="sparc"

  4236.     ;;

  4237.     tilegx|tile-gx)

  4238.         arch="tilegx"

  4239.     ;;

  4240.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4241.         arch="x86"

  4242.     ;;

  4243. esac

  4244. 

  4245. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4246. enable $arch

  4247. 

  4248. # Add processor-specific flags

  4249. if enabled aarch64; then

  4250. 

  4251.     case $cpu in

  4252.         armv*)

  4253.             cpuflags="-march=$cpu"

  4254.         ;;

  4255.         *)

  4256.             cpuflags="-mcpu=$cpu"

  4257.         ;;

  4258.     esac

  4259. 

  4260. elif enabled alpha; then

  4261. 

  4262.     cpuflags="-mcpu=$cpu"

  4263. 

  4264. elif enabled arm; then

  4265. 

  4266.     check_arm_arch() {

  4267.         check_cpp_condition stddef.h \

  4268.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4269.             $cpuflags

  4270.     }

  4271. 

  4272.     probe_arm_arch() {

  4273.         if   check_arm_arch 4;        then echo armv4

  4274.         elif check_arm_arch 4T;       then echo armv4t

  4275.         elif check_arm_arch 5;        then echo armv5

  4276.         elif check_arm_arch 5E;       then echo armv5e

  4277.         elif check_arm_arch 5T;       then echo armv5t

  4278.         elif check_arm_arch 5TE;      then echo armv5te

  4279.         elif check_arm_arch 5TEJ;     then echo armv5te

  4280.         elif check_arm_arch 6;        then echo armv6

  4281.         elif check_arm_arch 6J;       then echo armv6j

  4282.         elif check_arm_arch 6K;       then echo armv6k

  4283.         elif check_arm_arch 6Z;       then echo armv6z

  4284.         elif check_arm_arch 6ZK;      then echo armv6zk

  4285.         elif check_arm_arch 6T2;      then echo armv6t2

  4286.         elif check_arm_arch 7;        then echo armv7

  4287.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4288.         elif check_arm_arch 7S;       then echo armv7-a

  4289.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4290.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4291.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4292.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4293.         fi

  4294.     }

  4295. 

  4296.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4297. 

  4298.     case $cpu in

  4299.         armv*)

  4300.             cpuflags="-march=$cpu"

  4301.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4302.         ;;

  4303.         *)

  4304.             cpuflags="-mcpu=$cpu"

  4305.             case $cpu in

  4306.                 cortex-a*)                               subarch=armv7a  ;;

  4307.                 cortex-r*)                               subarch=armv7r  ;;

  4308.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4309.                 arm11*)                                  subarch=armv6   ;;

  4310.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4311.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4312.                 *)                             subarch=$(probe_arm_arch) ;;

  4313.             esac

  4314.         ;;

  4315.     esac

  4316. 

  4317.     case "$subarch" in

  4318.         armv5t*)    enable fast_clz                ;;

  4319.         armv[6-8]*)

  4320.             enable fast_clz

  4321.             disabled fast_unaligned || enable fast_unaligned

  4322.             ;;

  4323.     esac

  4324. 

  4325. elif enabled avr32; then

  4326. 

  4327.     case $cpu in

  4328.         ap7[02]0[0-2])

  4329.             subarch="avr32_ap"

  4330.             cpuflags="-mpart=$cpu"

  4331.         ;;

  4332.         ap)

  4333.             subarch="avr32_ap"

  4334.             cpuflags="-march=$cpu"

  4335.         ;;

  4336.         uc3[ab]*)

  4337.             subarch="avr32_uc"

  4338.             cpuflags="-mcpu=$cpu"

  4339.         ;;

  4340.         uc)

  4341.             subarch="avr32_uc"

  4342.             cpuflags="-march=$cpu"

  4343.         ;;

  4344.     esac

  4345. 

  4346. elif enabled bfin; then

  4347. 

  4348.     cpuflags="-mcpu=$cpu"

  4349. 

  4350. elif enabled mips; then

  4351. 

  4352.     cpuflags="-march=$cpu"

  4353. 

  4354.     if [ "$cpu" != "generic" ]; then

  4355.         disable mips32r2

  4356.         disable mips32r5

  4357.         disable mips64r2

  4358.         disable mips32r6

  4359.         disable mips64r6

  4360.         disable loongson2

  4361.         disable loongson3

  4362. 

  4363.         case $cpu in

  4364.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4365.                 enable mips32r2

  4366.                 disable msa

  4367.             ;;

  4368.             p5600|i6400|p6600)

  4369.                 disable mipsdsp

  4370.                 disable mipsdspr2

  4371.             ;;

  4372.             loongson*)

  4373.                 enable loongson2

  4374.                 enable loongson3

  4375.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4376.                 enable simd_align_16

  4377.                 enable fast_64bit

  4378.                 enable fast_clz

  4379.                 enable fast_cmov

  4380.                 enable fast_unaligned

  4381.                 disable aligned_stack

  4382.                 case $cpu in

  4383.                     loongson3*)

  4384.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4385.                     ;;

  4386.                     loongson2e)

  4387.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4388.                     ;;

  4389.                     loongson2f)

  4390.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4391.                     ;;

  4392.                 esac

  4393.             ;;

  4394.             *)

  4395.                 # Unknown CPU. Disable everything.

  4396.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4397.                 disable mipsfpu

  4398.                 disable mipsdsp

  4399.                 disable mipsdspr2

  4400.                 disable msa

  4401.                 disable mmi

  4402.             ;;

  4403.         esac

  4404. 

  4405.         case $cpu in

  4406.             24kc)

  4407.                 disable mipsfpu

  4408.                 disable mipsdsp

  4409.                 disable mipsdspr2

  4410.             ;;

  4411.             24kf*)

  4412.                 disable mipsdsp

  4413.                 disable mipsdspr2

  4414.             ;;

  4415.             24kec|34kc|1004kc)

  4416.                 disable mipsfpu

  4417.                 disable mipsdspr2

  4418.             ;;

  4419.             24kef*|34kf*|1004kf*)

  4420.                 disable mipsdspr2

  4421.             ;;

  4422.             74kc)

  4423.                 disable mipsfpu

  4424.             ;;

  4425.             p5600)

  4426.                 enable mips32r5

  4427.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4428.             ;;

  4429.             i6400)

  4430.                 enable mips64r6

  4431.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4432.             ;;

  4433.             p6600)

  4434.                 enable mips64r6

  4435.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4436.             ;;

  4437.         esac

  4438.     else

  4439.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4440.         warn 'generic cpu selected'

  4441.     fi

  4442. 

  4443. elif enabled ppc; then

  4444. 

  4445.     disable ldbrx

  4446. 

  4447.     case $(tolower $cpu) in

  4448.         601|ppc601|powerpc601)

  4449.             cpuflags="-mcpu=601"

  4450.             disable altivec

  4451.         ;;

  4452.         603*|ppc603*|powerpc603*)

  4453.             cpuflags="-mcpu=603"

  4454.             disable altivec

  4455.         ;;

  4456.         604*|ppc604*|powerpc604*)

  4457.             cpuflags="-mcpu=604"

  4458.             disable altivec

  4459.         ;;

  4460.         g3|75*|ppc75*|powerpc75*)

  4461.             cpuflags="-mcpu=750"

  4462.             disable altivec

  4463.         ;;

  4464.         g4|745*|ppc745*|powerpc745*)

  4465.             cpuflags="-mcpu=7450"

  4466.             disable vsx

  4467.         ;;

  4468.         74*|ppc74*|powerpc74*)

  4469.             cpuflags="-mcpu=7400"

  4470.             disable vsx

  4471.         ;;

  4472.         g5|970|ppc970|powerpc970)

  4473.             cpuflags="-mcpu=970"

  4474.             disable vsx

  4475.         ;;

  4476.         power[3-6]*)

  4477.             cpuflags="-mcpu=$cpu"

  4478.             disable vsx

  4479.         ;;

  4480.         power[7-8]*)

  4481.             cpuflags="-mcpu=$cpu"

  4482.         ;;

  4483.         cell)

  4484.             cpuflags="-mcpu=cell"

  4485.             enable ldbrx

  4486.             disable vsx

  4487.         ;;

  4488.         e500mc)

  4489.             cpuflags="-mcpu=e500mc"

  4490.             disable altivec

  4491.         ;;

  4492.         e500v2)

  4493.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4494.             disable altivec

  4495.             disable dcbzl

  4496.         ;;

  4497.         e500)

  4498.             cpuflags="-mcpu=8540 -mhard-float"

  4499.             disable altivec

  4500.             disable dcbzl

  4501.         ;;

  4502.     esac

  4503. 

  4504. elif enabled sparc; then

  4505. 

  4506.     case $cpu in

  4507.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4508.             cpuflags="-mcpu=$cpu"

  4509.         ;;

  4510.         ultrasparc*|niagara[234])

  4511.             cpuflags="-mcpu=$cpu"

  4512.         ;;

  4513.     esac

  4514. 

  4515. elif enabled x86; then

  4516. 

  4517.     case $cpu in

  4518.         i[345]86|pentium)

  4519.             cpuflags="-march=$cpu"

  4520.             disable i686

  4521.             disable mmx

  4522.         ;;

  4523.         # targets that do NOT support nopl and conditional mov (cmov)

  4524.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4525.             cpuflags="-march=$cpu"

  4526.             disable i686

  4527.         ;;

  4528.         # targets that do support nopl and conditional mov (cmov)

  4529.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4530.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4531.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4532.             cpuflags="-march=$cpu"

  4533.             enable i686

  4534.             enable fast_cmov

  4535.         ;;

  4536.         # targets that do support conditional mov but on which it's slow

  4537.         pentium4|pentium4m|prescott|nocona)

  4538.             cpuflags="-march=$cpu"

  4539.             enable i686

  4540.             disable fast_cmov

  4541.         ;;

  4542.     esac

  4543. 

  4544. fi

  4545. 

  4546. if [ "$cpu" != generic ]; then

  4547.     add_cflags  $cpuflags

  4548.     add_asflags $cpuflags

  4549.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4550. fi

  4551. 

  4552. # compiler sanity check

  4553. check_exec <<EOF

  4554. int main(void){ return 0; }

  4555. EOF

  4556. if test "$?" != 0; then

  4557.     echo "$cc is unable to create an executable file."

  4558.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4559.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4560.         echo "Only do this if you know what cross compiling means."

  4561.     fi

  4562.     die "C compiler test failed."

  4563. fi

  4564. 

  4565. add_cppflags -D_ISOC99_SOURCE

  4566. add_cxxflags -D__STDC_CONSTANT_MACROS

  4567. add_cxxflags -std=c++98

  4568. check_cflags -std=c99

  4569. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4570. #include <stdlib.h>

  4571. EOF

  4572. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4573. #include <stdlib.h>

  4574. EOF

  4575. 

  4576. add_host_cppflags -D_ISOC99_SOURCE

  4577. check_host_cflags -std=c99

  4578. check_host_cflags -Wall

  4579. check_host_cflags -O3

  4580. 

  4581. check_64bit(){

  4582.     arch32=$1

  4583.     arch64=$2

  4584.     expr=$3

  4585.     check_code cc "" "int test[2*($expr) - 1]" &&

  4586.         subarch=$arch64 || subarch=$arch32

  4587. }

  4588. 

  4589. case "$arch" in

  4590.     aarch64|alpha|ia64)

  4591.         spic=$shared

  4592.     ;;

  4593.     mips)

  4594.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4595.         spic=$shared

  4596.     ;;

  4597.     parisc)

  4598.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4599.         spic=$shared

  4600.     ;;

  4601.     ppc)

  4602.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4603.         spic=$shared

  4604.     ;;

  4605.     s390)

  4606.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4607.         spic=$shared

  4608.     ;;

  4609.     sparc)

  4610.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4611.         spic=$shared

  4612.     ;;

  4613.     x86)

  4614.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4615.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4616.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4617.             subarch=x86_64

  4618.         if test "$subarch" = "x86_64"; then

  4619.             spic=$shared

  4620.         fi

  4621.     ;;

  4622.     ppc)

  4623.         check_cc <<EOF && subarch="ppc64"

  4624.         int test[(int)sizeof(char*) - 7];

  4625. EOF

  4626.     ;;

  4627. esac

  4628. 

  4629. enable $subarch

  4630. enabled spic && enable_weak pic

  4631. 

  4632. # OS specific

  4633. case $target_os in

  4634.     aix)

  4635.         SHFLAGS=-shared

  4636.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4637.         enabled shared && add_ldflags -Wl,-brtl

  4638.         ;;

  4639.     android)

  4640.         disable symver

  4641.         enable section_data_rel_ro

  4642.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4643.         SLIB_INSTALL_LINKS=

  4644.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4645.         ;;

  4646.     haiku)

  4647.         prefix_default="/boot/common"

  4648.         network_extralibs="-lnetwork"

  4649.         host_libs=

  4650.         ;;

  4651.     sunos)

  4652.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4653.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4654.         network_extralibs="-lsocket -lnsl"

  4655.         add_cppflags -D__EXTENSIONS__

  4656.         # When using suncc to build, the Solaris linker will mark

  4657.         # an executable with each instruction set encountered by

  4658.         # the Solaris assembler.  As our libraries contain their own

  4659.         # guards for processor-specific code, instead suppress

  4660.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4661.         enabled_all suncc x86 &&

  4662.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4663.             add_ldflags -Wl,-M,mapfile

  4664.         nm_default='nm -P -g'

  4665.         version_script='-M'

  4666.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4667.         ;;

  4668.     netbsd)

  4669.         disable symver

  4670.         oss_indev_extralibs="-lossaudio"

  4671.         oss_outdev_extralibs="-lossaudio"

  4672.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4673.         ;;

  4674.     openbsd|bitrig)

  4675.         disable symver

  4676.         SHFLAGS='-shared'

  4677.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4678.         SLIB_INSTALL_LINKS=

  4679.         oss_indev_extralibs="-lossaudio"

  4680.         oss_outdev_extralibs="-lossaudio"

  4681.         ;;

  4682.     dragonfly)

  4683.         disable symver

  4684.         ;;

  4685.     freebsd)

  4686.         ;;

  4687.     bsd/os)

  4688.         add_extralibs -lpoll -lgnugetopt

  4689.         strip="strip -d"

  4690.         ;;

  4691.     darwin)

  4692.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4693.         install_name_dir_default='$(SHLIBDIR)'

  4694.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4695.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4696.         strip="${strip} -x"

  4697.         add_ldflags -Wl,-dynamic,-search_paths_first

  4698.         SLIBSUF=".dylib"

  4699.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4700.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4701.         objformat="macho"

  4702.         enabled x86_64 && objformat="macho64"

  4703.         enabled_any pic shared x86_64 ||

  4704.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4705.         check_header dispatch/dispatch.h &&

  4706.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4707.         ;;

  4708.     msys*)

  4709.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4710.         ;;

  4711.     mingw32*|mingw64*)

  4712.         if test $target_os = "mingw32ce"; then

  4713.             disable network

  4714.         else

  4715.             target_os=mingw32

  4716.         fi

  4717.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4718.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4719.         LIBTARGET=i386

  4720.         if enabled x86_64; then

  4721.             LIBTARGET="i386:x86-64"

  4722.         elif enabled arm; then

  4723.             LIBTARGET=arm-wince

  4724.         fi

  4725.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4726.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4727.         shlibdir_default="$bindir_default"

  4728.         SLIBPREF=""

  4729.         SLIBSUF=".dll"

  4730.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4731.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4732.         dlltool="${cross_prefix}dlltool"

  4733.         if check_cmd lib.exe -list; then

  4734.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4735.             if enabled x86_64; then

  4736.                 LIBTARGET=x64

  4737.             fi

  4738.         elif check_cmd $dlltool --version; then

  4739.             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)'

  4740.         fi

  4741.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4742.         SLIB_INSTALL_LINKS=

  4743.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4744.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4745.         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'

  4746.         objformat="win32"

  4747.         ranlib=:

  4748.         enable dos_paths

  4749.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4750.         # Lets work around some stupidity in binutils.

  4751.         # ld will strip relocations from executables even though we need them

  4752.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4753.         # however ld then forgets what the entry point should be (oops) so we

  4754.         # have to manually (re)set it.

  4755.         if enabled x86_32; then

  4756.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4757.         elif enabled x86_64; then

  4758.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4759.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4760.             # Set image base >4GB for extra entropy with HEASLR

  4761.             add_ldexeflags -Wl,--image-base,0x140000000

  4762.             append SHFLAGS -Wl,--image-base,0x180000000

  4763.         fi

  4764.         ;;

  4765.     win32|win64)

  4766.         disable symver

  4767.         if enabled shared; then

  4768.             # Link to the import library instead of the normal static library

  4769.             # for shared libs.

  4770.             LD_LIB='%.lib'

  4771.             # Cannot build both shared and static libs with MSVC or icl.

  4772.             disable static

  4773.         fi

  4774.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4775.         shlibdir_default="$bindir_default"

  4776.         SLIBPREF=""

  4777.         SLIBSUF=".dll"

  4778.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4779.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4780.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4781.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4782.         SLIB_INSTALL_LINKS=

  4783.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4784.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4785.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4786.         objformat="win32"

  4787.         ranlib=:

  4788.         enable dos_paths

  4789.         ;;

  4790.     cygwin*)

  4791.         target_os=cygwin

  4792.         shlibdir_default="$bindir_default"

  4793.         SLIBPREF="cyg"

  4794.         SLIBSUF=".dll"

  4795.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4796.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4797.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4798.         SLIB_INSTALL_LINKS=

  4799.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4800.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4801.         objformat="win32"

  4802.         enable dos_paths

  4803.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4804.         ;;

  4805.     *-dos|freedos|opendos)

  4806.         network_extralibs="-lsocket"

  4807.         objformat="coff"

  4808.         enable dos_paths

  4809.         add_cppflags -U__STRICT_ANSI__

  4810.         ;;

  4811.     linux)

  4812.         enable dv1394

  4813.         enable section_data_rel_ro

  4814.         ;;

  4815.     irix*)

  4816.         target_os=irix

  4817.         ranlib="echo ignoring ranlib"

  4818.         ;;

  4819.     os/2*)

  4820.         strip="lxlite -CS"

  4821.         objformat="aout"

  4822.         add_cppflags -D_GNU_SOURCE

  4823.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4824.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4825.         LIBSUF="_s.a"

  4826.         SLIBPREF=""

  4827.         SLIBSUF=".dll"

  4828.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4829.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4830.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  4831.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  4832.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  4833.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  4834.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  4835.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  4836.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  4837.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4838.         SLIB_INSTALL_LINKS=

  4839.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  4840.         enable dos_paths

  4841.         enable_weak os2threads

  4842.         ;;

  4843.     gnu/kfreebsd)

  4844.         add_cppflags -D_BSD_SOURCE

  4845.         ;;

  4846.     gnu)

  4847.         ;;

  4848.     qnx)

  4849.         add_cppflags -D_QNX_SOURCE

  4850.         network_extralibs="-lsocket"

  4851.         ;;

  4852.     symbian)

  4853.         SLIBSUF=".dll"

  4854.         enable dos_paths

  4855.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4856.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4857.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4858.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4859.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4860.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4861.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4862.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4863.         ;;

  4864.     osf1)

  4865.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4866.         ;;

  4867.     minix)

  4868.         ;;

  4869.     plan9)

  4870.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4871.                      -D_REENTRANT_SOURCE        \

  4872.                      -D_RESEARCH_SOURCE         \

  4873.                      -DFD_SETSIZE=96            \

  4874.                      -DHAVE_SOCK_OPTS

  4875.         add_compat strtod.o strtod=avpriv_strtod

  4876.         network_extralibs='-lbsd'

  4877.         exeobjs=compat/plan9/main.o

  4878.         disable ffserver

  4879.         cp_f='cp'

  4880.         ;;

  4881.     none)

  4882.         ;;

  4883.     *)

  4884.         die "Unknown OS '$target_os'."

  4885.         ;;

  4886. esac

  4887. 

  4888. # test if creating links works

  4889. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  4890. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  4891. mkdir "$link_dest"

  4892. $ln_s "$link_dest" "$link_name"

  4893. touch "$link_dest/test_file"

  4894. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  4895.     # create link to source path

  4896.     [ -e src ] && rm src

  4897.     $ln_s "$source_path" src

  4898.     source_link=src

  4899. else

  4900.     # creating directory links doesn't work

  4901.     # fall back to using the full source path

  4902.     source_link="$source_path"

  4903. fi

  4904. # cleanup

  4905. rm -r "$link_dest"

  4906. rm -r "$link_name"

  4907. 

  4908. # determine libc flavour

  4909. 

  4910. probe_libc(){

  4911.     pfx=$1

  4912.     pfx_no_=${pfx%_}

  4913.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4914.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4915.         eval ${pfx}libc_type=uclibc

  4916.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4917.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4918.         eval ${pfx}libc_type=glibc

  4919.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4920.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4921.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4922.         eval ${pfx}libc_type=newlib

  4923.         add_${pfx}cppflags -U__STRICT_ANSI__

  4924.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4925.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4926.         eval ${pfx}libc_type=mingw64

  4927.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4928.             add_compat msvcrt/snprintf.o

  4929.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4930.         fi

  4931.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4932.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4933.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4934.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4935.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4936.         eval ${pfx}libc_type=mingw32

  4937.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4938.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4939.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4940.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4941.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  4942.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  4943.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4944.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4945.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4946.         eval ${pfx}libc_type=msvcrt

  4947.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4948.             if [ "$pfx" = host_ ]; then

  4949.                 add_host_cppflags -Dsnprintf=_snprintf

  4950.             else

  4951.                 add_compat strtod.o strtod=avpriv_strtod

  4952.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4953.                                              _snprintf=avpriv_snprintf  \

  4954.                                              vsnprintf=avpriv_vsnprintf

  4955.             fi

  4956.         fi

  4957.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4958.         # 0x601 by default unless something else is set by the user.

  4959.         # This can easily lead to us detecting functions only present

  4960.         # in such new versions and producing binaries requiring windows 7.0.

  4961.         # Therefore explicitly set the default to XP unless the user has

  4962.         # set something else on the command line.

  4963.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4964.         # family. For these cases, configure is free to use any functions

  4965.         # found in the SDK headers by default. (Alternatively, we could force

  4966.         # _WIN32_WINNT to 0x0602 in that case.)

  4967.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4968.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4969. #ifdef WINAPI_FAMILY

  4970. #include <winapifamily.h>

  4971. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4972. #error not desktop

  4973. #endif

  4974. #endif

  4975. EOF

  4976.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4977.         eval ${pfx}libc_type=klibc

  4978.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4979.         eval ${pfx}libc_type=bionic

  4980.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4981.         eval ${pfx}libc_type=solaris

  4982.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4983.     fi

  4984.     check_${pfx}cc <<EOF

  4985. #include <time.h>

  4986. void *v = localtime_r;

  4987. EOF

  4988. 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

  4989. #include <time.h>

  4990. void *v = localtime_r;

  4991. EOF

  4992. 

  4993. }

  4994. 

  4995. probe_libc

  4996. test -n "$libc_type" && enable libc_$libc_type

  4997. probe_libc host_

  4998. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  4999. 

  5000. case $libc_type in

  5001.     bionic)

  5002.         add_compat strtod.o strtod=avpriv_strtod

  5003.         ;;

  5004. esac

  5005. 

  5006. # hacks for compiler/libc/os combinations

  5007. 

  5008. if enabled_all tms470 libc_glibc; then

  5009.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5010.     add_cppflags -D__USER_LABEL_PREFIX__=

  5011.     add_cppflags -D__builtin_memset=memset

  5012.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5013.     add_cflags   -pds=48    # incompatible redefinition of macro

  5014. fi

  5015. 

  5016. if enabled_all ccc libc_glibc; then

  5017.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  5018. fi

  5019. 

  5020. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5021.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5022. 

  5023. esc(){

  5024.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5025. }

  5026. 

  5027. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  5028. 

  5029. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5030. 

  5031. set_default libdir

  5032. : ${shlibdir_default:="$libdir"}

  5033. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5034. 

  5035. set_default $PATHS_LIST

  5036. set_default nm

  5037. 

  5038. # we need to build at least one lib type

  5039. if ! enabled_any static shared; then

  5040.     cat <<EOF

  5041. At least one library type must be built.

  5042. Specify --enable-static to build the static libraries or --enable-shared to

  5043. build the shared libraries as well. To only build the shared libraries specify

  5044. --disable-static in addition to --enable-shared.

  5045. EOF

  5046.     exit 1

  5047. fi

  5048. 

  5049. die_license_disabled() {

  5050.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  5051. }

  5052. 

  5053. die_license_disabled_gpl() {

  5054.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  5055. }

  5056. 

  5057. die_license_disabled gpl frei0r

  5058. die_license_disabled gpl libcdio

  5059. die_license_disabled gpl librubberband

  5060. die_license_disabled gpl libsmbclient

  5061. die_license_disabled gpl libvidstab

  5062. die_license_disabled gpl libx264

  5063. die_license_disabled gpl libx265

  5064. die_license_disabled gpl libxavs

  5065. die_license_disabled gpl libxvid

  5066. die_license_disabled gpl x11grab

  5067. 

  5068. die_license_disabled nonfree cuda

  5069. die_license_disabled nonfree cuvid

  5070. die_license_disabled nonfree libfaac

  5071. die_license_disabled nonfree libnpp

  5072. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  5073. enabled gpl && die_license_disabled_gpl nonfree openssl

  5074. 

  5075. die_license_disabled version3 gmp

  5076. die_license_disabled version3 libopencore_amrnb

  5077. die_license_disabled version3 libopencore_amrwb

  5078. die_license_disabled version3 libsmbclient

  5079. die_license_disabled version3 libvo_amrwbenc

  5080. 

  5081. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  5082. 

  5083. disabled optimizations || check_cflags -fomit-frame-pointer

  5084. 

  5085. enable_weak_pic() {

  5086.     disabled pic && return

  5087.     enable pic

  5088.     add_cppflags -DPIC

  5089.     case "$target_os" in

  5090.     mingw*|cygwin*)

  5091.         ;;

  5092.     *)

  5093.         add_cflags -fPIC

  5094.         ;;

  5095.     esac

  5096.     add_asflags  -fPIC

  5097. }

  5098. 

  5099. enabled pic && enable_weak_pic

  5100. 

  5101. check_cc <<EOF || die "Symbol mangling check failed."

  5102. int ff_extern;

  5103. EOF

  5104. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5105. extern_prefix=${sym%%ff_extern*}

  5106. 

  5107. check_cc <<EOF && enable_weak inline_asm

  5108. void foo(void) { __asm__ volatile ("" ::); }

  5109. EOF

  5110. 

  5111. _restrict=

  5112. for restrict_keyword in restrict __restrict__ __restrict; do

  5113.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5114. void foo(char * $restrict_keyword p);

  5115. EOF

  5116. done

  5117. 

  5118. check_cc <<EOF && enable pragma_deprecated

  5119. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5120. EOF

  5121. 

  5122. check_cc <<EOF && enable attribute_packed

  5123. struct { int x; } __attribute__((packed)) x;

  5124. EOF

  5125. 

  5126. check_cc <<EOF && enable attribute_may_alias

  5127. union { int x; } __attribute__((may_alias)) x;

  5128. EOF

  5129. 

  5130. check_cc <<EOF || die "endian test failed"

  5131. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5132. EOF

  5133. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5134. 

  5135. if ! enabled ppc64 || enabled bigendian; then

  5136.     disable vsx

  5137. fi

  5138. 

  5139. check_gas() {

  5140.     log "check_gas using '$as' as AS"

  5141.     # :vararg is used on aarch64, arm and ppc altivec

  5142.     check_as <<EOF || return 1

  5143. .macro m n, y:vararg=0

  5144. \n: .int \y

  5145. .endm

  5146. m x

  5147. EOF

  5148.     # .altmacro is only used in arm asm

  5149.     ! enabled arm || check_as <<EOF || return 1

  5150. .altmacro

  5151. EOF

  5152.     enable gnu_as

  5153.     return 0

  5154. }

  5155. 

  5156. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5157.     nogas=:

  5158.     enabled_any arm aarch64 && nogas=die

  5159.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5160.     as_noop=-v

  5161. 

  5162.     case $as_type in

  5163.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5164.         gcc)  gaspp_as_type=gas ;;

  5165.         *)    gaspp_as_type=$as_type ;;

  5166.     esac

  5167. 

  5168.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5169. 

  5170.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5171.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5172.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5173. 

  5174.     if ! check_gas ; then

  5175.         as=${gas:=$as}

  5176.         check_gas || \

  5177.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5178.     fi

  5179. 

  5180.     check_as <<EOF && enable as_func

  5181. .func test

  5182. .endfunc

  5183. EOF

  5184. fi

  5185. 

  5186. check_inline_asm inline_asm_labels '"1:\n"'

  5187. 

  5188. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5189. 

  5190. if enabled aarch64; then

  5191.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5192.     # internal assembler in clang 3.3 does not support this instruction

  5193.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5194.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5195. 

  5196.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5197. 

  5198. elif enabled alpha; then

  5199. 

  5200.     check_cflags -mieee

  5201. 

  5202. elif enabled arm; then

  5203. 

  5204.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5205. 

  5206.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5207. float func(float a, float b){ return a+b; }

  5208. EOF

  5209. 

  5210.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5211. 

  5212.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5213.         enable vfp_args

  5214.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5215.         enable vfp_args

  5216.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5217.         case "${cross_prefix:-$cc}" in

  5218.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5219.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5220. __asm__ (".eabi_attribute 28, 1");

  5221. int main(void) { return 0; }

  5222. EOF

  5223.         esac

  5224.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5225.     fi

  5226. 

  5227.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5228.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5229.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5230.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5231.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5232.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5233.     enabled setend  && check_insn setend  'setend be'

  5234. 

  5235.     [ $target_os = linux ] || [ $target_os = android ] ||

  5236.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5237.             $ARCH_EXT_LIST_ARM

  5238. 

  5239.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5240. 

  5241.     check_as <<EOF && enable as_dn_directive

  5242. ra .dn d0.i16

  5243. .unreq ra

  5244. EOF

  5245. 

  5246.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5247.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  5248. .object_arch armv4

  5249. EOF

  5250. 

  5251.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5252. 

  5253. elif enabled mips; then

  5254. 

  5255.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5256.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5257.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5258. 

  5259.     # Enable minimum ISA based on selected options

  5260.     if enabled mips64; then

  5261.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5262.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5263.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5264.     else

  5265.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5266.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5267.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5268.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5269.     fi

  5270. 

  5271.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5272.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5273.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5274.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5275.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5276. 

  5277. elif enabled parisc; then

  5278. 

  5279.     if enabled gcc; then

  5280.         case $($cc -dumpversion) in

  5281.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5282.         esac

  5283.     fi

  5284. 

  5285. elif enabled ppc; then

  5286. 

  5287.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5288. 

  5289.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5290.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5291.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5292.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5293. 

  5294.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5295.     if enabled altivec; then

  5296.         check_cflags -maltivec -mabi=altivec &&

  5297.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5298.         check_cflags -faltivec

  5299. 

  5300.         # check if our compiler supports Motorola AltiVec C API

  5301.         check_cc <<EOF || disable altivec

  5302. $inc_altivec_h

  5303. int main(void) {

  5304.     vector signed int v1 = (vector signed int) { 0 };

  5305.     vector signed int v2 = (vector signed int) { 1 };

  5306.     v1 = vec_add(v1, v2);

  5307.     return 0;

  5308. }

  5309. EOF

  5310. 

  5311.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5312.     fi

  5313. 

  5314.     if enabled vsx; then

  5315.         check_cflags -mvsx &&

  5316.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5317.     fi

  5318. 

  5319.     if enabled power8; then

  5320.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5321.     fi

  5322. 

  5323. elif enabled x86; then

  5324. 

  5325.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5326.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5327. 

  5328.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5329. 

  5330.     # check whether EBP is available on x86

  5331.     # As 'i' is stored on the stack, this program will crash

  5332.     # if the base pointer is used to access it because the

  5333.     # base pointer is cleared in the inline assembly code.

  5334.     check_exec_crash <<EOF && enable ebp_available

  5335. volatile int i=0;

  5336. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5337. return i;

  5338. EOF

  5339. 

  5340.     # check whether EBX is available on x86

  5341.     check_inline_asm ebx_available '""::"b"(0)' &&

  5342.         check_inline_asm ebx_available '"":::"%ebx"'

  5343. 

  5344.     # check whether xmm clobbers are supported

  5345.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5346. 

  5347.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5348.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5349. 

  5350.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5351.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5352.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5353. 

  5354.     if ! disabled_any asm mmx yasm; then

  5355.         if check_cmd $yasmexe --version; then

  5356.             enabled x86_64 && yasm_extra="-m amd64"

  5357.             yasm_debug="-g dwarf2"

  5358.         elif check_cmd nasm -v; then

  5359.             yasmexe=nasm

  5360.             yasm_debug="-g -F dwarf"

  5361.             if enabled x86_64; then

  5362.                 case "$objformat" in

  5363.                     elf)   objformat=elf64 ;;

  5364.                     win32) objformat=win64 ;;

  5365.                 esac

  5366.             fi

  5367.         fi

  5368. 

  5369.         YASMFLAGS="-f $objformat $yasm_extra"

  5370.         enabled pic               && append YASMFLAGS "-DPIC"

  5371.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5372.         case "$objformat" in

  5373.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5374.         esac

  5375. 

  5376.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5377.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5378.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5379.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5380.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5381.         check_yasm "CPU amdnop" || disable cpunop

  5382.     fi

  5383. 

  5384.     case "$cpu" in

  5385.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5386.             disable fast_clz

  5387.         ;;

  5388.     esac

  5389. 

  5390. fi

  5391. 

  5392. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5393. 

  5394. check_ldflags -Wl,--as-needed

  5395. check_ldflags -Wl,-z,noexecstack

  5396. 

  5397. if check_func dlopen && check_func dlsym; then

  5398.     ldl=

  5399. elif check_func dlopen -ldl && check_func dlsym -ldl; then

  5400.     ldl=-ldl

  5401. fi

  5402. 

  5403. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5404. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5405. frei0r_filter_extralibs='$ldl'

  5406. frei0r_src_filter_extralibs='$ldl'

  5407. ladspa_filter_extralibs='$ldl'

  5408. nvenc_extralibs='$ldl'

  5409. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5410. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5411. 

  5412. if ! disabled network; then

  5413.     check_func getaddrinfo $network_extralibs

  5414.     check_func inet_aton $network_extralibs

  5415. 

  5416.     check_type netdb.h "struct addrinfo"

  5417.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5418.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5419.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5420.     check_type poll.h "struct pollfd"

  5421.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5422.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5423.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5424.     check_type netinet/in.h "struct sockaddr_in6"

  5425.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5426.     check_type "sys/types.h sys/socket.h" socklen_t

  5427. 

  5428.     # Prefer arpa/inet.h over winsock2

  5429.     if check_header arpa/inet.h ; then

  5430.         check_func closesocket

  5431.     elif check_header winsock2.h ; then

  5432.         check_func_headers winsock2.h closesocket -lws2 &&

  5433.             network_extralibs="-lws2" ||

  5434.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5435.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5436.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5437. 

  5438.         check_type ws2tcpip.h socklen_t

  5439.         check_type ws2tcpip.h "struct addrinfo"

  5440.         check_type ws2tcpip.h "struct group_source_req"

  5441.         check_type ws2tcpip.h "struct ip_mreq_source"

  5442.         check_type ws2tcpip.h "struct ipv6_mreq"

  5443.         check_type winsock2.h "struct pollfd"

  5444.         check_struct winsock2.h "struct sockaddr" sa_len

  5445.         check_type ws2tcpip.h "struct sockaddr_in6"

  5446.         check_type ws2tcpip.h "struct sockaddr_storage"

  5447.     else

  5448.         disable network

  5449.     fi

  5450. fi

  5451. 

  5452. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5453. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5454. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5455. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5456. check_builtin sarestart signal.h "SA_RESTART"

  5457. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5458. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5459. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5460. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5461. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5462. 

  5463. case "$custom_allocator" in

  5464.     jemalloc)

  5465.         # jemalloc by default does not use a prefix

  5466.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5467.     ;;

  5468.     tcmalloc)

  5469.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5470.         malloc_prefix=tc_

  5471.     ;;

  5472. esac

  5473. 

  5474. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5475. check_func  ${malloc_prefix}memalign            && enable memalign

  5476. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5477. 

  5478. check_func  access

  5479. check_func_headers stdlib.h arc4random

  5480. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5481. check_func  fcntl

  5482. check_func  fork

  5483. check_func  gethrtime

  5484. check_func  getopt

  5485. check_func  getrusage

  5486. check_func  gettimeofday

  5487. check_func  isatty

  5488. check_func  mach_absolute_time

  5489. check_func  mkstemp

  5490. check_func  mmap

  5491. check_func  mprotect

  5492. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5493. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5494. check_func  sched_getaffinity

  5495. check_func  setrlimit

  5496. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5497. check_func  strerror_r

  5498. check_func  sysconf

  5499. check_func  sysctl

  5500. check_func  usleep

  5501. 

  5502. check_func_headers conio.h kbhit

  5503. check_func_headers io.h setmode

  5504. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5505. check_func_headers stdlib.h getenv

  5506. check_func_headers sys/stat.h lstat

  5507. 

  5508. check_func_headers windows.h CoTaskMemFree -lole32

  5509. check_func_headers windows.h GetProcessAffinityMask

  5510. check_func_headers windows.h GetProcessTimes

  5511. check_func_headers windows.h GetSystemTimeAsFileTime

  5512. check_func_headers windows.h LoadLibrary

  5513. check_func_headers windows.h MapViewOfFile

  5514. check_func_headers windows.h PeekNamedPipe

  5515. check_func_headers windows.h SetConsoleTextAttribute

  5516. check_func_headers windows.h SetConsoleCtrlHandler

  5517. check_func_headers windows.h Sleep

  5518. check_func_headers windows.h VirtualAlloc

  5519. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5520. check_func_headers glob.h glob

  5521. enabled xlib &&

  5522.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5523. 

  5524. check_header AudioToolbox/AudioToolbox.h

  5525. check_header direct.h

  5526. check_header dirent.h

  5527. check_header dlfcn.h

  5528. check_header d3d11.h

  5529. check_header dxva.h

  5530. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5531. check_header io.h

  5532. check_header libcrystalhd/libcrystalhd_if.h

  5533. check_header mach/mach_time.h

  5534. check_header malloc.h

  5535. check_header net/udplite.h

  5536. check_header poll.h

  5537. check_header sys/mman.h

  5538. check_header sys/param.h

  5539. check_header sys/resource.h

  5540. check_header sys/select.h

  5541. check_header sys/time.h

  5542. check_header sys/un.h

  5543. check_header termios.h

  5544. check_header unistd.h

  5545. check_header valgrind/valgrind.h

  5546. check_header vdpau/vdpau.h

  5547. check_header vdpau/vdpau_x11.h

  5548. check_header VideoDecodeAcceleration/VDADecoder.h

  5549. check_header VideoToolbox/VideoToolbox.h

  5550. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5551. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5552. check_header windows.h

  5553. check_header X11/extensions/XvMClib.h

  5554. check_header asm/types.h

  5555. 

  5556. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5557. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5558. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5559. check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5560. 

  5561. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5562. 

  5563. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5564. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5565. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5566. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5567. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5568. 

  5569. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5570. check_type "va/va.h" "VADecPictureParameterBufferVP9"

  5571. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5572. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5573. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5574. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5575. 

  5576. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5577. 

  5578. check_type "cuviddec.h" "CUVIDH264PICPARAMS"

  5579. check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"

  5580. check_type "cuviddec.h" "CUVIDJPEGPICPARAMS"

  5581. check_type "cuviddec.h" "CUVIDMPEG2PICPARAMS"

  5582. check_type "cuviddec.h" "CUVIDMPEG4PICPARAMS"

  5583. check_type "cuviddec.h" "CUVIDVC1PICPARAMS"

  5584. check_type "cuviddec.h" "CUVIDVP9PICPARAMS"

  5585. 

  5586. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5587. 

  5588. if ! disabled w32threads && ! enabled pthreads; then

  5589.     check_func_headers "windows.h process.h" _beginthreadex &&

  5590.         enable w32threads || disable w32threads

  5591.     if ! enabled w32threads && enabled winrt; then

  5592.         check_func_headers "windows.h" CreateThread &&

  5593.             enable w32threads || disable w32threads

  5594.     fi

  5595. fi

  5596. 

  5597. # check for some common methods of building with pthread support

  5598. # do this before the optional library checks as some of them require pthreads

  5599. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5600.     enable pthreads

  5601.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5602.         add_cflags -pthread

  5603.         add_extralibs -pthread

  5604.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5605.         add_cflags -pthreads

  5606.         add_extralibs -pthreads

  5607.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5608.         add_cflags -ldl -pthread

  5609.         add_extralibs -ldl -pthread

  5610.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5611.         add_extralibs -lpthreadGC2

  5612.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5613.         :

  5614.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5615.         disable pthreads

  5616.     fi

  5617.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5618. fi

  5619. 

  5620. 

  5621. if enabled pthreads; then

  5622.   check_func pthread_cancel

  5623. fi

  5624. 

  5625. enabled pthreads &&

  5626.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

  5627. 

  5628. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5629. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5630. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5631. 

  5632. check_lib math.h sin -lm && LIBM="-lm"

  5633. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5634. 

  5635. atan2f_args=2

  5636. copysign_args=2

  5637. hypot_args=2

  5638. ldexpf_args=2

  5639. powf_args=2

  5640. 

  5641. for func in $MATH_FUNCS; do

  5642.     eval check_mathfunc $func \${${func}_args:-1}

  5643. done

  5644. 

  5645. for func in $COMPLEX_FUNCS; do

  5646.     eval check_complexfunc $func \${${func}_args:-1}

  5647. done

  5648. 

  5649. # Enable CUVID by default if CUDA is enabled

  5650. if enabled cuda && ! disabled cuvid; then

  5651.     enable cuvid

  5652. fi

  5653. 

  5654. # these are off by default, so fail if requested and not available

  5655. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5656. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5657.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5658. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5659.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5660.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5661. enabled cuda              && { check_lib cuda.h cuInit -lcuda ||

  5662.                                die "ERROR: CUDA not found"; }

  5663. enabled cuvid             && { check_lib cuviddec.h cuvidCreateDecoder -lnvcuvid ||

  5664.                                die "ERROR: CUVID not found"; } &&

  5665.                              { enabled cuda ||

  5666.                                die "ERROR: CUVID requires CUDA"; }

  5667. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5668. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5669. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5670. enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&

  5671.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5672. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5673. enabled gmp               && require2 gmp gmp.h mpz_export -lgmp

  5674. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5675. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&

  5676.                                check_lib2 "dlfcn.h" dlopen -ldl; }

  5677. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5678. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5679. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5680. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5681. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5682. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5683.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5684.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5685. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5686. enabled libebur128        && require ebur128 ebur128.h ebur128_relative_threshold -lebur128

  5687. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5688. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5689.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5690.                                  warn "using libfdk without pkg-config"; } }

  5691. flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"

  5692. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5693. enabled fontconfig        && enable libfontconfig

  5694. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5695. enabled libfreetype       && require_libfreetype

  5696. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5697. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5698. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5699.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5700.                                done || die "ERROR: libgsm not found"; }

  5701. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5702. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5703. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5704. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5705. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5706. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5707. enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc

  5708. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5709. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5710. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5711.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5712.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5713.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5714. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5715. enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5716.                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5717.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5718.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5719.                                die "ERROR: libopenjpeg not found"; }

  5720. enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create

  5721. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5722. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5723. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5724. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5725. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5726. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5727. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5728.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5729. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5730. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5731. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5732. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5733. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5734. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5735. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5736.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5737.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5738. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5739. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5740. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5741. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5742. 

  5743. enabled libvpx            && {

  5744.     enabled libvpx_vp8_decoder && {

  5745.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5746.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5747.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5748.     }

  5749.     enabled libvpx_vp8_encoder && {

  5750.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5751.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5752.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5753.     }

  5754.     enabled libvpx_vp9_decoder && {

  5755.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5756.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5757.                 disable libvpx_vp9_decoder;

  5758.     }

  5759.     enabled libvpx_vp9_encoder && {

  5760.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5761.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5762.                 disable libvpx_vp9_encoder;

  5763.     }

  5764.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5765.         die "libvpx enabled but no supported decoders found"

  5766.     fi

  5767. }

  5768. 

  5769. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5770. enabled libwebp           && {

  5771.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5772.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5773. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5774.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5775.                                  warn "using libx264 without pkg-config"; } } &&

  5776.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5777.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5778.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5779.                                enable libx262; }

  5780. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5781.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5782.                                die "ERROR: libx265 version must be >= 68."; }

  5783. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5784. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5785. enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version

  5786. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5787. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5788.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5789.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5790. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5791. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5792.                                 { ! enabled cross_compile && {

  5793.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5794.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5795.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5796.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5797.                                die "ERROR: mmal not found"; }

  5798. enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"

  5799. 

  5800. enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers

  5801. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5802.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5803.                                die "ERROR: openal not found"; } &&

  5804.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5805.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5806. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5807.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5808.                                die "ERROR: opencl not found"; } &&

  5809.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5810.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5811.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5812. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5813.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5814.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5815.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5816.                                die "ERROR: opengl not found."

  5817.                              }

  5818. enabled omx_rpi && enable omx

  5819. enabled omx               && { check_header OMX_Core.h ||

  5820.                                 { ! enabled cross_compile && enabled omx_rpi && {

  5821.                                     add_cflags -isystem/opt/vc/include/IL ; }

  5822.                                 check_header OMX_Core.h ; } ||

  5823.                                die "ERROR: OpenMAX IL headers not found"; }

  5824. enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  5825.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5826.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5827.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5828.                                die "ERROR: openssl not found"; }

  5829. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5830. 

  5831. # libdc1394 check

  5832. if enabled libdc1394; then

  5833.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5834.         enable libdc1394_2; } ||

  5835.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5836.         enable libdc1394_1; } ||

  5837.     die "ERROR: No version of libdc1394 found "

  5838. fi

  5839. 

  5840. if enabled gcrypt; then

  5841.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5842.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  5843.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  5844.         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)

  5845.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||

  5846.             die "ERROR: gcrypt not found"

  5847.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs

  5848.     else

  5849.         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  5850.     fi

  5851. fi

  5852. 

  5853. if ! disabled sdl; then

  5854.     SDL_CONFIG="${cross_prefix}sdl-config"

  5855.     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then

  5856.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5857.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5858.         enable sdl

  5859.     else

  5860.         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then

  5861.             sdl_cflags=$("${SDL_CONFIG}" --cflags)

  5862.             sdl_libs=$("${SDL_CONFIG}" --libs)

  5863.             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&

  5864.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&

  5865.             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&

  5866.             enable sdl

  5867.         elif enabled sdl ; then

  5868.             die "ERROR: SDL not found"

  5869.         else

  5870.             disable sdl

  5871.         fi

  5872.     fi

  5873.     if test $target_os = "mingw32"; then

  5874.         sdl_libs="$sdl_libs -mconsole"

  5875.     fi

  5876. fi

  5877. enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs

  5878. 

  5879. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5880.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5881.     enable securetransport; }

  5882. 

  5883. disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  5884.                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }

  5885. 

  5886. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5887. enabled makeinfo \

  5888.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5889.     && enable makeinfo_html || disable makeinfo_html

  5890. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5891. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5892. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5893. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5894. 

  5895. check_header linux/fb.h

  5896. check_header linux/videodev.h

  5897. check_header linux/videodev2.h

  5898. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5899. 

  5900. check_header sys/videoio.h

  5901. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5902. 

  5903. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5904. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5905. # w32api 3.12 had it defined wrong

  5906. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5907. 

  5908. check_type "dshow.h" IBaseFilter

  5909. 

  5910. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5911. { check_header dev/bktr/ioctl_meteor.h &&

  5912.   check_header dev/bktr/ioctl_bt848.h; } ||

  5913. { check_header machine/ioctl_meteor.h &&

  5914.   check_header machine/ioctl_bt848.h; } ||

  5915. { check_header dev/video/meteor/ioctl_meteor.h &&

  5916.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5917. check_header dev/ic/bt8xx.h

  5918. 

  5919. check_header sndio.h

  5920. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5921.     enable_safe sys/soundcard.h

  5922. else

  5923.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5924.     #include <sys/soundcard.h>

  5925.     audio_buf_info abc;

  5926. EOF

  5927. fi

  5928. check_header soundcard.h

  5929. 

  5930. enabled_any alsa_indev alsa_outdev &&

  5931.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5932. 

  5933. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&

  5934.     check_func jack_port_get_latency_range -ljack

  5935. 

  5936. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5937. 

  5938. if enabled libcdio; then

  5939.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5940.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5941.     die "ERROR: No usable libcdio/cdparanoia found"

  5942. fi

  5943. 

  5944. enabled xlib &&

  5945.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5946. 

  5947. if ! disabled libxcb; then

  5948.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5949.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5950.     } && disable x11grab && enable libxcb

  5951. 

  5952. if enabled libxcb; then

  5953.     disabled libxcb_shm || {

  5954.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5955.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5956.         } && check_header sys/shm.h && enable libxcb_shm; }

  5957. 

  5958.     disabled libxcb_xfixes || {

  5959.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5960.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5961.         } && enable libxcb_xfixes; }

  5962. 

  5963.     disabled libxcb_shape || {

  5964.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5965.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5966.         } && enable libxcb_shape; }

  5967. 

  5968.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5969.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5970. fi

  5971. fi

  5972. 

  5973. if enabled x11grab; then

  5974.     enabled xlib || die "ERROR: Xlib not found"

  5975.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5976.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5977. fi

  5978. 

  5979. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5980. 

  5981. enabled dxva2api_h &&

  5982.     check_cc <<EOF && enable dxva2api_cobj

  5983. #define _WIN32_WINNT 0x0600

  5984. #define COBJMACROS

  5985. #include <windows.h>

  5986. #include <d3d9.h>

  5987. #include <dxva2api.h>

  5988. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5989. EOF

  5990. 

  5991. enabled vaapi &&

  5992.     check_lib va/va.h vaInitialize -lva ||

  5993.     disable vaapi

  5994. 

  5995. enabled vaapi &&

  5996.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  5997.     disable vaapi

  5998. 

  5999. if enabled vaapi ; then

  6000.     enabled xlib &&

  6001.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  6002.     enable vaapi_x11

  6003. 

  6004.     check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&

  6005.     enable vaapi_drm

  6006. fi

  6007. 

  6008. enabled vdpau &&

  6009.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6010.     disable vdpau

  6011. 

  6012. enabled vdpau && enabled xlib &&

  6013.     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  6014.     enable vdpau_x11

  6015. 

  6016. if enabled x86; then

  6017.     case $target_os in

  6018.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6019.             ;;

  6020.         *)

  6021.             disable nvenc

  6022.             ;;

  6023.     esac

  6024. else

  6025.     disable nvenc

  6026. fi

  6027. 

  6028. enabled nvenc &&

  6029.     check_cc -I$source_path <<EOF || disable nvenc

  6030. #include "compat/nvenc/nvEncodeAPI.h"

  6031. NV_ENCODE_API_FUNCTION_LIST flist;

  6032. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6033. int main(void) { return 0; }

  6034. EOF

  6035. 

  6036. # Funny iconv installations are not unusual, so check it after all flags have been set

  6037. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  6038. 

  6039. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6040. 

  6041. # add some useful compiler flags if supported

  6042. check_cflags -Wdeclaration-after-statement

  6043. check_cflags -Wall

  6044. check_cflags -Wdisabled-optimization

  6045. check_cflags -Wpointer-arith

  6046. check_cflags -Wredundant-decls

  6047. check_cflags -Wwrite-strings

  6048. check_cflags -Wtype-limits

  6049. check_cflags -Wundef

  6050. check_cflags -Wmissing-prototypes

  6051. check_cflags -Wno-pointer-to-int-cast

  6052. check_cflags -Wstrict-prototypes

  6053. check_cflags -Wempty-body

  6054. enabled extra_warnings && check_cflags -Winline

  6055. enabled extra_warnings && check_cflags -Wcast-qual

  6056. 

  6057. check_disable_warning(){

  6058.     warning_flag=-W${1#-Wno-}

  6059.     test_cflags $warning_flag && add_cflags $1

  6060. }

  6061. 

  6062. check_disable_warning -Wno-parentheses

  6063. check_disable_warning -Wno-switch

  6064. check_disable_warning -Wno-format-zero-length

  6065. check_disable_warning -Wno-pointer-sign

  6066. check_disable_warning -Wno-unused-const-variable

  6067. 

  6068. # add some linker flags

  6069. check_ldflags -Wl,--warn-common

  6070. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6071. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6072. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6073. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6074. 

  6075. # add some strip flags

  6076. # -wN '..@*' is more selective than -x, but not available everywhere.

  6077. check_stripflags -wN \'..@*\' || check_stripflags -x

  6078. 

  6079. enabled neon_clobber_test &&

  6080.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6081.                   -Wl,--wrap,avcodec_decode_audio4      \

  6082.                   -Wl,--wrap,avcodec_decode_video2      \

  6083.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6084.                   -Wl,--wrap,avcodec_encode_audio2      \

  6085.                   -Wl,--wrap,avcodec_encode_video2      \

  6086.                   -Wl,--wrap,avcodec_send_packet        \

  6087.                   -Wl,--wrap,avcodec_receive_frame      \

  6088.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6089.                   -Wl,--wrap,swr_convert                \

  6090.                   -Wl,--wrap,avresample_convert ||

  6091.     disable neon_clobber_test

  6092. 

  6093. enabled xmm_clobber_test &&

  6094.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6095.                   -Wl,--wrap,avcodec_decode_audio4      \

  6096.                   -Wl,--wrap,avcodec_decode_video2      \

  6097.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6098.                   -Wl,--wrap,avcodec_encode_audio2      \

  6099.                   -Wl,--wrap,avcodec_encode_video2      \

  6100.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6101.                   -Wl,--wrap,avcodec_send_packet        \

  6102.                   -Wl,--wrap,avcodec_receive_frame      \

  6103.                   -Wl,--wrap,swr_convert                \

  6104.                   -Wl,--wrap,avresample_convert         \

  6105.                   -Wl,--wrap,sws_scale ||

  6106.     disable xmm_clobber_test

  6107. 

  6108. check_ld "cc" <<EOF && enable proper_dce

  6109. extern const int array[512];

  6110. static inline int func(void) { return array[0]; }

  6111. int main(void) { return 0; }

  6112. EOF

  6113. 

  6114. if enabled proper_dce; then

  6115.     echo "X { local: *; };" > $TMPV

  6116.     if test_ldflags -Wl,${version_script},$TMPV; then

  6117.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6118.         check_cc <<EOF && enable symver_asm_label

  6119. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6120. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6121. EOF

  6122.         check_cc <<EOF && enable symver_gnu_asm

  6123. __asm__(".symver ff_foo,av_foo@VERSION");

  6124. void ff_foo(void) {}

  6125. EOF

  6126.     fi

  6127. fi

  6128. 

  6129. if [ -z "$optflags" ]; then

  6130.     if enabled small; then

  6131.         optflags=$cflags_size

  6132.     elif enabled optimizations; then

  6133.         optflags=$cflags_speed

  6134.     else

  6135.         optflags=$cflags_noopt

  6136.     fi

  6137. fi

  6138. 

  6139. check_optflags(){

  6140.     check_cflags "$@"

  6141.     enabled lto && check_ldflags "$@"

  6142. }

  6143. 

  6144. 

  6145. if enabled lto; then

  6146.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6147.     check_cflags  -flto

  6148.     check_ldflags -flto $cpuflags

  6149.     disable inline_asm_direct_symbol_refs

  6150. fi

  6151. 

  6152. check_optflags $optflags

  6153. check_optflags -fno-math-errno

  6154. check_optflags -fno-signed-zeros

  6155. 

  6156. enabled ftrapv && check_cflags -ftrapv

  6157. 

  6158. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6159. int x;

  6160. EOF

  6161. 

  6162. 

  6163. if enabled icc; then

  6164.     # Just warnings, no remarks

  6165.     check_cflags -w1

  6166.     # -wd: Disable following warnings

  6167.     # 144, 167, 556: -Wno-pointer-sign

  6168.     # 188: enumerated type mixed with another type

  6169.     # 1292: attribute "foo" ignored

  6170.     # 1419: external declaration in primary source file

  6171.     # 10006: ignoring unknown option -fno-signed-zeros

  6172.     # 10148: ignoring unknown option -Wno-parentheses

  6173.     # 10156: ignoring option '-W'; no argument required

  6174.     # 13200: No EMMS instruction before call to function

  6175.     # 13203: No EMMS instruction before return from function

  6176.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6177.     # 11030: Warning unknown option --as-needed

  6178.     # 10156: ignoring option '-export'; no argument required

  6179.     check_ldflags -wd10156,11030

  6180.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6181.     enable ebp_available

  6182.     # The test above does not test linking

  6183.     enabled lto && disable symver_asm_label

  6184.     if enabled x86_32; then

  6185.         icc_version=$($cc -dumpversion)

  6186.         test ${icc_version%%.*} -ge 11 &&

  6187.             check_cflags -falign-stack=maintain-16-byte ||

  6188.             disable aligned_stack

  6189.     fi

  6190. elif enabled ccc; then

  6191.     # disable some annoying warnings

  6192.     add_cflags -msg_disable bitnotint

  6193.     add_cflags -msg_disable mixfuncvoid

  6194.     add_cflags -msg_disable nonstandcast

  6195.     add_cflags -msg_disable unsupieee

  6196. elif enabled gcc; then

  6197.     check_optflags -fno-tree-vectorize

  6198.     check_cflags -Werror=format-security

  6199.     check_cflags -Werror=implicit-function-declaration

  6200.     check_cflags -Werror=missing-prototypes

  6201.     check_cflags -Werror=return-type

  6202.     check_cflags -Werror=vla

  6203.     check_cflags -Wformat

  6204.     check_cflags -fdiagnostics-color=auto

  6205.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6206. elif enabled llvm_gcc; then

  6207.     check_cflags -mllvm -stack-alignment=16

  6208. elif enabled clang; then

  6209.     check_cflags -mllvm -stack-alignment=16

  6210.     check_cflags -Qunused-arguments

  6211.     check_cflags -Werror=implicit-function-declaration

  6212.     check_cflags -Werror=missing-prototypes

  6213.     check_cflags -Werror=return-type

  6214. elif enabled cparser; then

  6215.     add_cflags -Wno-missing-variable-declarations

  6216.     add_cflags -Wno-empty-statement

  6217. elif enabled armcc; then

  6218.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6219.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6220.     # 2523: use of inline assembly is deprecated

  6221.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6222.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6223.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6224.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6225.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6226.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6227. elif enabled tms470; then

  6228.     add_cflags -pds=824 -pds=837

  6229.     disable inline_asm

  6230. elif enabled pathscale; then

  6231.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6232. elif enabled_any msvc icl; then

  6233.     enabled x86_32 && disable aligned_stack

  6234.     enabled_all x86_32 debug && add_cflags -Oy-

  6235.     enabled debug && add_ldflags -debug

  6236.     enable pragma_deprecated

  6237.     if enabled icl; then

  6238.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6239.         # (correctly) on icl 13.x.

  6240.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6241.             add_cflags -Qansi-alias

  6242.         # Some inline asm is not compilable in debug

  6243.         if enabled debug; then

  6244.             disable ebp_available

  6245.             disable ebx_available

  6246.         fi

  6247.     fi

  6248.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6249.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6250.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6251.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6252.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6253.     # MSVC 2013 and newer can handle it fine.

  6254.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6255.     # happens in config.h.

  6256.     if [ $_restrict != restrict ]; then

  6257.         check_cc <<EOF || add_cflags -FIstdlib.h

  6258. __declspec($_restrict) void* foo(int);

  6259. EOF

  6260.     fi

  6261.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  6262.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6263.     # this flag should be re-checked on newer compiler releases and put under a

  6264.     # version check once its fixed

  6265.     check_cflags -d2SSAOptimizer-

  6266. fi

  6267. 

  6268. for pfx in "" host_; do

  6269.     varname=${pfx%_}cc_type

  6270.     eval "type=\$$varname"

  6271.     if [ $type = "msvc" ]; then

  6272.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6273. static inline int foo(int a) { return a; }

  6274. EOF

  6275.     fi

  6276. done

  6277. 

  6278. case $as_type in

  6279.     clang)

  6280.         add_asflags -Qunused-arguments

  6281.     ;;

  6282. esac

  6283. 

  6284. case $ld_type in

  6285.     clang)

  6286.         check_ldflags -Qunused-arguments

  6287.     ;;

  6288. esac

  6289. 

  6290. case $target_os in

  6291.     osf1)

  6292.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6293.     ;;

  6294.     plan9)

  6295.         add_cppflags -Dmain=plan9_main

  6296.     ;;

  6297. esac

  6298. 

  6299. enable frame_thread_encoder

  6300. 

  6301. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6302. 

  6303. check_deps $CONFIG_LIST       \

  6304.            $CONFIG_EXTRA      \

  6305.            $HAVE_LIST         \

  6306.            $ALL_COMPONENTS    \

  6307. 

  6308. 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"

  6309. 

  6310. 

  6311. if test $target_os = "haiku"; then

  6312.     disable memalign

  6313.     disable posix_memalign

  6314. fi

  6315. 

  6316. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  6317.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  6318.     enable dxva2_lib

  6319. 

  6320. ! enabled_any memalign posix_memalign aligned_malloc &&

  6321.     enabled simd_align_16 && enable memalign_hack

  6322. 

  6323. # add_dep lib dep

  6324. # -> enable ${lib}_deps_${dep}

  6325. # -> add $dep to ${lib}_deps only once

  6326. add_dep() {

  6327.     lib=$1

  6328.     dep=$2

  6329.     enabled "${lib}_deps_${dep}" && return 0

  6330.     enable  "${lib}_deps_${dep}"

  6331.     prepend "${lib}_deps" $dep

  6332. }

  6333. 

  6334. # merge deps lib components

  6335. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6336. merge_deps() {

  6337.     lib=$1

  6338.     shift

  6339.     for comp in $*; do

  6340.         enabled $comp || continue

  6341.         eval "dep=\"\$${comp}_deps\""

  6342.         for d in $dep; do

  6343.             add_dep $lib $d

  6344.         done

  6345.     done

  6346. }

  6347. 

  6348. merge_deps libavfilter $FILTER_LIST

  6349. 

  6350. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6351. 

  6352. for thread in $THREADS_LIST; do

  6353.     if enabled $thread; then

  6354.         test -n "$thread_type" &&

  6355.             die "ERROR: Only one thread type must be selected." ||

  6356.             thread_type="$thread"

  6357.     fi

  6358. done

  6359. 

  6360. enabled zlib && add_cppflags -DZLIB_CONST

  6361. 

  6362. # conditional library dependencies, in linking order

  6363. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6364. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6365. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6366. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  6367. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6368. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6369. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6370. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6371. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6372. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6373. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6374. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6375. enabled pan_filter          && prepend avfilter_deps "swresample"

  6376. enabled pp_filter           && prepend avfilter_deps "postproc"

  6377. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6378. enabled resample_filter && prepend avfilter_deps "avresample"

  6379. enabled sab_filter          && prepend avfilter_deps "swscale"

  6380. enabled scale_filter    && prepend avfilter_deps "swscale"

  6381. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6382. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6383. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6384. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6385. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6386. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6387. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6388. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6389. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6390. 

  6391. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6392. 

  6393. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6394. 

  6395. expand_deps(){

  6396.     lib_deps=${1}_deps

  6397.     eval "deps=\$$lib_deps"

  6398.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6399.     unique $lib_deps

  6400. }

  6401. 

  6402. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6403. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6404. 

  6405. map 'expand_deps $v' $LIBRARY_LIST

  6406. 

  6407. echo "install prefix            $prefix"

  6408. echo "source path               $source_path"

  6409. echo "C compiler                $cc"

  6410. echo "C library                 $libc_type"

  6411. if test "$host_cc" != "$cc"; then

  6412.     echo "host C compiler           $host_cc"

  6413.     echo "host C library            $host_libc_type"

  6414. fi

  6415. echo "ARCH                      $arch ($cpu)"

  6416. if test "$build_suffix" != ""; then

  6417.     echo "build suffix              $build_suffix"

  6418. fi

  6419. if test "$progs_suffix" != ""; then

  6420.     echo "progs suffix              $progs_suffix"

  6421. fi

  6422. if test "$extra_version" != ""; then

  6423.     echo "version string suffix     $extra_version"

  6424. fi

  6425. echo "big-endian                ${bigendian-no}"

  6426. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6427. if enabled x86; then

  6428.     echo "${yasmexe}                      ${yasm-no}"

  6429.     echo "MMX enabled               ${mmx-no}"

  6430.     echo "MMXEXT enabled            ${mmxext-no}"

  6431.     echo "3DNow! enabled            ${amd3dnow-no}"

  6432.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6433.     echo "SSE enabled               ${sse-no}"

  6434.     echo "SSSE3 enabled             ${ssse3-no}"

  6435.     echo "AESNI enabled             ${aesni-no}"

  6436.     echo "AVX enabled               ${avx-no}"

  6437.     echo "XOP enabled               ${xop-no}"

  6438.     echo "FMA3 enabled              ${fma3-no}"

  6439.     echo "FMA4 enabled              ${fma4-no}"

  6440.     echo "i686 features enabled     ${i686-no}"

  6441.     echo "CMOV is fast              ${fast_cmov-no}"

  6442.     echo "EBX available             ${ebx_available-no}"

  6443.     echo "EBP available             ${ebp_available-no}"

  6444. fi

  6445. if enabled aarch64; then

  6446.     echo "NEON enabled              ${neon-no}"

  6447.     echo "VFP enabled               ${vfp-no}"

  6448. fi

  6449. if enabled arm; then

  6450.     echo "ARMv5TE enabled           ${armv5te-no}"

  6451.     echo "ARMv6 enabled             ${armv6-no}"

  6452.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6453.     echo "VFP enabled               ${vfp-no}"

  6454.     echo "NEON enabled              ${neon-no}"

  6455.     echo "THUMB enabled             ${thumb-no}"

  6456. fi

  6457. if enabled mips; then

  6458.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6459.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6460.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6461.     echo "MIPS MSA enabled          ${msa-no}"

  6462.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6463. fi

  6464. if enabled ppc; then

  6465.     echo "AltiVec enabled           ${altivec-no}"

  6466.     echo "VSX enabled               ${vsx-no}"

  6467.     echo "POWER8 enabled            ${power8-no}"

  6468.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6469.     echo "dcbzl available           ${dcbzl-no}"

  6470. fi

  6471. echo "debug symbols             ${debug-no}"

  6472. echo "strip symbols             ${stripping-no}"

  6473. echo "optimize for size         ${small-no}"

  6474. echo "optimizations             ${optimizations-no}"

  6475. echo "static                    ${static-no}"

  6476. echo "shared                    ${shared-no}"

  6477. echo "postprocessing support    ${postproc-no}"

  6478. echo "new filter support        ${avfilter-no}"

  6479. echo "network support           ${network-no}"

  6480. echo "threading support         ${thread_type-no}"

  6481. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6482. echo "SDL support               ${sdl-no}"

  6483. echo "opencl enabled            ${opencl-no}"

  6484. echo "JNI support               ${jni-no}"

  6485. echo "texi2html enabled         ${texi2html-no}"

  6486. echo "perl enabled              ${perl-no}"

  6487. echo "pod2man enabled           ${pod2man-no}"

  6488. echo "makeinfo enabled          ${makeinfo-no}"

  6489. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6490. test -n "$random_seed" &&

  6491.     echo "random seed               ${random_seed}"

  6492. echo

  6493. 

  6494. echo "Enabled programs:"

  6495. print_enabled '' $PROGRAM_LIST | print_in_columns

  6496. echo

  6497. 

  6498. echo "External libraries:"

  6499. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6500. echo

  6501. 

  6502. echo "External libraries providing hardware acceleration:"

  6503. print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns

  6504. echo

  6505. 

  6506. echo "Libraries:"

  6507. print_enabled '' $LIBRARY_LIST | print_in_columns

  6508. echo

  6509. 

  6510. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6511.     echo "Enabled ${type}s:"

  6512.     eval list=\$$(toupper $type)_LIST

  6513.     print_enabled '_*' $list | print_in_columns

  6514.     echo

  6515. done

  6516. 

  6517. license="LGPL version 2.1 or later"

  6518. if enabled nonfree; then

  6519.     license="nonfree and unredistributable"

  6520. elif enabled gplv3; then

  6521.     license="GPL version 3 or later"

  6522. elif enabled lgplv3; then

  6523.     license="LGPL version 3 or later"

  6524. elif enabled gpl; then

  6525.     license="GPL version 2 or later"

  6526. fi

  6527. 

  6528. echo "License: $license"

  6529. 

  6530. echo "Creating config.mak, config.h, and doc/config.texi..."

  6531. 

  6532. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6533. 

  6534. enabled stripping || strip="echo skipping strip"

  6535. 

  6536. config_files="$TMPH config.mak doc/config.texi"

  6537. 

  6538. cat > config.mak <<EOF

  6539. # Automatically generated by configure - do not modify!

  6540. ifndef FFMPEG_CONFIG_MAK

  6541. FFMPEG_CONFIG_MAK=1

  6542. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6543. prefix=$prefix

  6544. LIBDIR=\$(DESTDIR)$libdir

  6545. SHLIBDIR=\$(DESTDIR)$shlibdir

  6546. INCDIR=\$(DESTDIR)$incdir

  6547. BINDIR=\$(DESTDIR)$bindir

  6548. DATADIR=\$(DESTDIR)$datadir

  6549. DOCDIR=\$(DESTDIR)$docdir

  6550. MANDIR=\$(DESTDIR)$mandir

  6551. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6552. INSTALL_NAME_DIR=$install_name_dir

  6553. SRC_PATH=$source_path

  6554. SRC_LINK=$source_link

  6555. ifndef MAIN_MAKEFILE

  6556. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6557. endif

  6558. CC_IDENT=$cc_ident

  6559. ARCH=$arch

  6560. INTRINSICS=$intrinsics

  6561. CC=$cc

  6562. CXX=$cxx

  6563. AS=$as

  6564. OBJCC=$objcc

  6565. LD=$ld

  6566. DEPCC=$dep_cc

  6567. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6568. DEPAS=$as

  6569. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6570. YASM=$yasmexe

  6571. DEPYASM=$yasmexe

  6572. AR=$ar

  6573. ARFLAGS=$arflags

  6574. AR_O=$ar_o

  6575. RANLIB=$ranlib

  6576. STRIP=$strip

  6577. CP=cp -p

  6578. LN_S=$ln_s

  6579. CPPFLAGS=$CPPFLAGS

  6580. CFLAGS=$CFLAGS

  6581. CXXFLAGS=$CXXFLAGS

  6582. OBJCFLAGS=$OBJCFLAGS

  6583. ASFLAGS=$ASFLAGS

  6584. AS_C=$AS_C

  6585. AS_O=$AS_O

  6586. OBJCC_C=$OBJCC_C

  6587. OBJCC_E=$OBJCC_E

  6588. OBJCC_O=$OBJCC_O

  6589. CC_C=$CC_C

  6590. CC_E=$CC_E

  6591. CC_O=$CC_O

  6592. CXX_C=$CXX_C

  6593. CXX_O=$CXX_O

  6594. LD_O=$LD_O

  6595. LD_LIB=$LD_LIB

  6596. LD_PATH=$LD_PATH

  6597. DLLTOOL=$dlltool

  6598. WINDRES=$windres

  6599. DEPWINDRES=$dep_cc

  6600. DOXYGEN=$doxygen

  6601. LDFLAGS=$LDFLAGS

  6602. LDEXEFLAGS=$LDEXEFLAGS

  6603. LDLIBFLAGS=$LDLIBFLAGS

  6604. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6605. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6606. YASMFLAGS=$YASMFLAGS

  6607. BUILDSUF=$build_suffix

  6608. PROGSSUF=$progs_suffix

  6609. FULLNAME=$FULLNAME

  6610. LIBPREF=$LIBPREF

  6611. LIBSUF=$LIBSUF

  6612. LIBNAME=$LIBNAME

  6613. SLIBPREF=$SLIBPREF

  6614. SLIBSUF=$SLIBSUF

  6615. EXESUF=$EXESUF

  6616. EXTRA_VERSION=$extra_version

  6617. CCDEP=$CCDEP

  6618. CXXDEP=$CXXDEP

  6619. CCDEP_FLAGS=$CCDEP_FLAGS

  6620. ASDEP=$ASDEP

  6621. ASDEP_FLAGS=$ASDEP_FLAGS

  6622. CC_DEPFLAGS=$CC_DEPFLAGS

  6623. AS_DEPFLAGS=$AS_DEPFLAGS

  6624. HOSTCC=$host_cc

  6625. HOSTLD=$host_ld

  6626. HOSTCFLAGS=$host_cflags

  6627. HOSTCPPFLAGS=$host_cppflags

  6628. HOSTEXESUF=$HOSTEXESUF

  6629. HOSTLDFLAGS=$host_ldflags

  6630. HOSTLIBS=$host_libs

  6631. DEPHOSTCC=$host_cc

  6632. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6633. HOSTCCDEP=$HOSTCCDEP

  6634. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6635. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6636. HOSTCC_C=$HOSTCC_C

  6637. HOSTCC_O=$HOSTCC_O

  6638. HOSTLD_O=$HOSTLD_O

  6639. TARGET_EXEC=$target_exec $target_exec_args

  6640. TARGET_PATH=$target_path

  6641. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6642. CFLAGS-ffplay=$sdl_cflags

  6643. ZLIB=$($ldflags_filter -lz)

  6644. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6645. EXTRALIBS=$extralibs

  6646. COMPAT_OBJS=$compat_objs

  6647. EXEOBJS=$exeobjs

  6648. INSTALL=$install

  6649. LIBTARGET=${LIBTARGET}

  6650. SLIBNAME=${SLIBNAME}

  6651. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6652. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6653. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6654. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6655. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6656. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6657. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6658. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6659. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6660. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6661. NOREDZONE_FLAGS=$noredzone_flags

  6662. EOF

  6663. 

  6664. get_version(){

  6665.     lcname=lib${1}

  6666.     name=$(toupper $lcname)

  6667.     file=$source_path/$lcname/version.h

  6668.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6669.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6670.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6671.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6672.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6673.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6674. }

  6675. 

  6676. map 'get_version $v' $LIBRARY_LIST

  6677. 

  6678. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6679. 

  6680. print_program_libs(){

  6681.     eval "program_libs=\$${1}_libs"

  6682.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6683. }

  6684. 

  6685. map 'print_program_libs $v' $PROGRAM_LIST

  6686. 

  6687. cat > $TMPH <<EOF

  6688. /* Automatically generated by configure - do not modify! */

  6689. #ifndef FFMPEG_CONFIG_H

  6690. #define FFMPEG_CONFIG_H

  6691. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6692. #define FFMPEG_LICENSE "$(c_escape $license)"

  6693. #define CONFIG_THIS_YEAR 2016

  6694. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6695. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6696. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6697. #define av_restrict $_restrict

  6698. #define EXTERN_PREFIX "${extern_prefix}"

  6699. #define EXTERN_ASM ${extern_prefix}

  6700. #define BUILDSUF "$build_suffix"

  6701. #define SLIBSUF "$SLIBSUF"

  6702. #define HAVE_MMX2 HAVE_MMXEXT

  6703. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6704. EOF

  6705. 

  6706. test -n "$assert_level" &&

  6707.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6708. 

  6709. test -n "$malloc_prefix" &&

  6710.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6711. 

  6712. if enabled yasm; then

  6713.     append config_files $TMPASM

  6714.     printf '' >$TMPASM

  6715. fi

  6716. 

  6717. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6718. 

  6719. 

  6720. mkdir -p doc

  6721. mkdir -p tests

  6722. mkdir -p tests/api

  6723. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6724. 

  6725. print_config ARCH_   "$config_files" $ARCH_LIST

  6726. print_config HAVE_   "$config_files" $HAVE_LIST

  6727. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6728.                                      $CONFIG_EXTRA      \

  6729.                                      $ALL_COMPONENTS    \

  6730. 

  6731. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6732. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6733. 

  6734. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6735. cp_if_changed $TMPH config.h

  6736. touch .config

  6737. 

  6738. enabled yasm && cp_if_changed $TMPASM config.asm

  6739. 

  6740. cat > $TMPH <<EOF

  6741. /* Generated by ffconf */

  6742. #ifndef AVUTIL_AVCONFIG_H

  6743. #define AVUTIL_AVCONFIG_H

  6744. EOF

  6745. 

  6746. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6747. 

  6748. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6749. 

  6750. cp_if_changed $TMPH libavutil/avconfig.h

  6751. 

  6752. if test -n "$WARNINGS"; then

  6753.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6754.     enabled fatal_warnings && exit 1

  6755. fi

  6756. 

  6757. # generate the lists of enabled components

  6758. print_enabled_components(){

  6759.     file=$1

  6760.     struct_name=$2

  6761.     name=$3

  6762.     shift 3

  6763.     echo "static const $struct_name *$name[] = {" > $TMPH

  6764.     for c in $*; do

  6765.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  6766.     done

  6767.     echo "    NULL };" >> $TMPH

  6768.     cp_if_changed $TMPH $file

  6769. }

  6770. 

  6771. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  6772. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  6773. 

  6774. # build pkg-config files

  6775. 

  6776. lib_version(){

  6777.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6778. }

  6779. 

  6780. pkgconfig_generate(){

  6781.     name=$1

  6782.     shortname=${name#lib}${build_suffix}

  6783.     comment=$2

  6784.     version=$3

  6785.     libs=$4

  6786.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6787.     requires=${requires%, }

  6788.     enabled ${name#lib} || return 0

  6789.     mkdir -p $name

  6790.     cat <<EOF > $name/$name${build_suffix}.pc

  6791. prefix=$prefix

  6792. exec_prefix=\${prefix}

  6793. libdir=$libdir

  6794. includedir=$incdir

  6795. 

  6796. Name: $name

  6797. Description: $comment

  6798. Version: $version

  6799. Requires: $(enabled shared || echo $requires)

  6800. Requires.private: $(enabled shared && echo $requires)

  6801. Conflicts:

  6802. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6803. Libs.private: $(enabled shared && echo $libs)

  6804. Cflags: -I\${includedir}

  6805. EOF

  6806. 

  6807. mkdir -p doc/examples/pc-uninstalled

  6808. includedir=${source_path}

  6809. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6810.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6811. prefix=

  6812. exec_prefix=

  6813. libdir=\${pcfiledir}/../../../$name

  6814. includedir=${includedir}

  6815. 

  6816. Name: $name

  6817. Description: $comment

  6818. Version: $version

  6819. Requires: $requires

  6820. Conflicts:

  6821. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6822. Cflags: -I\${includedir}

  6823. EOF

  6824. }

  6825. 

  6826. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6827. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6828. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6829. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6830. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6831. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6832. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6833. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6834. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"