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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-sdl2           disable sdl2 [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_dir_cmd_example

  1452.     avio_reading_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.     http_multiclient_example

  1460.     metadata_example

  1461.     muxing_example

  1462.     qsvdec_example

  1463.     remuxing_example

  1464.     resampling_audio_example

  1465.     scaling_video_example

  1466.     transcode_aac_example

  1467.     transcoding_example

  1468. "

  1469. 

  1470. EXTERNAL_LIBRARY_LIST="

  1471.     avisynth

  1472.     bzlib

  1473.     chromaprint

  1474.     crystalhd

  1475.     decklink

  1476.     frei0r

  1477.     gcrypt

  1478.     gmp

  1479.     gnutls

  1480.     iconv

  1481.     jni

  1482.     ladspa

  1483.     libass

  1484.     libbluray

  1485.     libbs2b

  1486.     libcaca

  1487.     libcdio

  1488.     libcelt

  1489.     libdc1394

  1490.     libebur128

  1491.     libfaac

  1492.     libfdk_aac

  1493.     libflite

  1494.     libfontconfig

  1495.     libfreetype

  1496.     libfribidi

  1497.     libgme

  1498.     libgsm

  1499.     libiec61883

  1500.     libilbc

  1501.     libkvazaar

  1502.     libmodplug

  1503.     libmp3lame

  1504.     libnut

  1505.     libopencore_amrnb

  1506.     libopencore_amrwb

  1507.     libopencv

  1508.     libopenh264

  1509.     libopenjpeg

  1510.     libopenmpt

  1511.     libopus

  1512.     libpulse

  1513.     librtmp

  1514.     librubberband

  1515.     libschroedinger

  1516.     libshine

  1517.     libsmbclient

  1518.     libsnappy

  1519.     libsoxr

  1520.     libspeex

  1521.     libssh

  1522.     libtesseract

  1523.     libtheora

  1524.     libtwolame

  1525.     libv4l2

  1526.     libvidstab

  1527.     libvo_amrwbenc

  1528.     libvorbis

  1529.     libvpx

  1530.     libwavpack

  1531.     libwebp

  1532.     libx264

  1533.     libx265

  1534.     libxavs

  1535.     libxcb

  1536.     libxcb_shm

  1537.     libxcb_shape

  1538.     libxcb_xfixes

  1539.     libxvid

  1540.     libzimg

  1541.     libzmq

  1542.     libzvbi

  1543.     lzma

  1544.     mediacodec

  1545.     netcdf

  1546.     openal

  1547.     opencl

  1548.     opengl

  1549.     openssl

  1550.     schannel

  1551.     sdl

  1552.     sdl2

  1553.     securetransport

  1554.     videotoolbox

  1555.     x11grab

  1556.     xlib

  1557.     zlib

  1558. "

  1559. 

  1560. HWACCEL_LIBRARY_LIST="

  1561.     audiotoolbox

  1562.     cuda

  1563.     cuvid

  1564.     d3d11va

  1565.     dxva2

  1566.     libmfx

  1567.     libnpp

  1568.     mmal

  1569.     nvenc

  1570.     omx

  1571.     vaapi

  1572.     vda

  1573.     vdpau

  1574.     videotoolbox_hwaccel

  1575.     xvmc

  1576. "

  1577. 

  1578. DOCUMENT_LIST="

  1579.     doc

  1580.     htmlpages

  1581.     manpages

  1582.     podpages

  1583.     txtpages

  1584. "

  1585. 

  1586. FEATURE_LIST="

  1587.     ftrapv

  1588.     gray

  1589.     hardcoded_tables

  1590.     omx_rpi

  1591.     runtime_cpudetect

  1592.     safe_bitstream_reader

  1593.     shared

  1594.     small

  1595.     static

  1596.     swscale_alpha

  1597. "

  1598. 

  1599. LIBRARY_LIST="

  1600.     avcodec

  1601.     avdevice

  1602.     avfilter

  1603.     avformat

  1604.     avresample

  1605.     avutil

  1606.     postproc

  1607.     swresample

  1608.     swscale

  1609. "

  1610. 

  1611. LICENSE_LIST="

  1612.     gpl

  1613.     nonfree

  1614.     version3

  1615. "

  1616. 

  1617. PROGRAM_LIST="

  1618.     ffplay

  1619.     ffprobe

  1620.     ffserver

  1621.     ffmpeg

  1622. "

  1623. 

  1624. SUBSYSTEM_LIST="

  1625.     dct

  1626.     dwt

  1627.     error_resilience

  1628.     faan

  1629.     fast_unaligned

  1630.     fft

  1631.     lsp

  1632.     lzo

  1633.     mdct

  1634.     pixelutils

  1635.     network

  1636.     rdft

  1637. "

  1638. 

  1639. CONFIG_LIST="

  1640.     $COMPONENT_LIST

  1641.     $DOCUMENT_LIST

  1642.     $EXAMPLE_LIST

  1643.     $EXTERNAL_LIBRARY_LIST

  1644.     $HWACCEL_LIBRARY_LIST

  1645.     $FEATURE_LIST

  1646.     $LICENSE_LIST

  1647.     $LIBRARY_LIST

  1648.     $PROGRAM_LIST

  1649.     $SUBSYSTEM_LIST

  1650.     fontconfig

  1651.     incompatible_libav_abi

  1652.     memalign_hack

  1653.     memory_poisoning

  1654.     neon_clobber_test

  1655.     pic

  1656.     pod2man

  1657.     raise_major

  1658.     thumb

  1659.     valgrind_backtrace

  1660.     xmm_clobber_test

  1661. "

  1662. 

  1663. THREADS_LIST="

  1664.     pthreads

  1665.     os2threads

  1666.     w32threads

  1667. "

  1668. 

  1669. ATOMICS_LIST="

  1670.     atomics_gcc

  1671.     atomics_suncc

  1672.     atomics_win32

  1673. "

  1674. 

  1675. ARCH_LIST="

  1676.     aarch64

  1677.     alpha

  1678.     arm

  1679.     avr32

  1680.     avr32_ap

  1681.     avr32_uc

  1682.     bfin

  1683.     ia64

  1684.     m68k

  1685.     mips

  1686.     mips64

  1687.     parisc

  1688.     ppc

  1689.     ppc64

  1690.     s390

  1691.     sh4

  1692.     sparc

  1693.     sparc64

  1694.     tilegx

  1695.     tilepro

  1696.     tomi

  1697.     x86

  1698.     x86_32

  1699.     x86_64

  1700. "

  1701. 

  1702. ARCH_EXT_LIST_ARM="

  1703.     armv5te

  1704.     armv6

  1705.     armv6t2

  1706.     armv8

  1707.     neon

  1708.     vfp

  1709.     vfpv3

  1710.     setend

  1711. "

  1712. 

  1713. ARCH_EXT_LIST_MIPS="

  1714.     mipsfpu

  1715.     mips32r2

  1716.     mips32r5

  1717.     mips64r2

  1718.     mips32r6

  1719.     mips64r6

  1720.     mipsdsp

  1721.     mipsdspr2

  1722.     msa

  1723. "

  1724. 

  1725. ARCH_EXT_LIST_LOONGSON="

  1726.     loongson2

  1727.     loongson3

  1728.     mmi

  1729. "

  1730. 

  1731. ARCH_EXT_LIST_X86_SIMD="

  1732.     aesni

  1733.     amd3dnow

  1734.     amd3dnowext

  1735.     avx

  1736.     avx2

  1737.     fma3

  1738.     fma4

  1739.     mmx

  1740.     mmxext

  1741.     sse

  1742.     sse2

  1743.     sse3

  1744.     sse4

  1745.     sse42

  1746.     ssse3

  1747.     xop

  1748. "

  1749. 

  1750. ARCH_EXT_LIST_PPC="

  1751.     altivec

  1752.     dcbzl

  1753.     ldbrx

  1754.     power8

  1755.     ppc4xx

  1756.     vsx

  1757. "

  1758. 

  1759. ARCH_EXT_LIST_X86="

  1760.     $ARCH_EXT_LIST_X86_SIMD

  1761.     cpunop

  1762.     i686

  1763. "

  1764. 

  1765. ARCH_EXT_LIST="

  1766.     $ARCH_EXT_LIST_ARM

  1767.     $ARCH_EXT_LIST_PPC

  1768.     $ARCH_EXT_LIST_X86

  1769.     $ARCH_EXT_LIST_MIPS

  1770.     $ARCH_EXT_LIST_LOONGSON

  1771. "

  1772. 

  1773. ARCH_FEATURES="

  1774.     aligned_stack

  1775.     fast_64bit

  1776.     fast_clz

  1777.     fast_cmov

  1778.     local_aligned_8

  1779.     local_aligned_16

  1780.     local_aligned_32

  1781.     simd_align_16

  1782. "

  1783. 

  1784. BUILTIN_LIST="

  1785.     atomic_cas_ptr

  1786.     atomic_compare_exchange

  1787.     machine_rw_barrier

  1788.     MemoryBarrier

  1789.     mm_empty

  1790.     rdtsc

  1791.     sarestart

  1792.     sem_timedwait

  1793.     sync_val_compare_and_swap

  1794. "

  1795. HAVE_LIST_CMDLINE="

  1796.     inline_asm

  1797.     symver

  1798.     yasm

  1799. "

  1800. 

  1801. HAVE_LIST_PUB="

  1802.     bigendian

  1803.     fast_unaligned

  1804.     incompatible_libav_abi

  1805. "

  1806. 

  1807. HEADERS_LIST="

  1808.     alsa_asoundlib_h

  1809.     altivec_h

  1810.     arpa_inet_h

  1811.     asm_types_h

  1812.     cdio_paranoia_h

  1813.     cdio_paranoia_paranoia_h

  1814.     dispatch_dispatch_h

  1815.     dev_bktr_ioctl_bt848_h

  1816.     dev_bktr_ioctl_meteor_h

  1817.     dev_ic_bt8xx_h

  1818.     dev_video_bktr_ioctl_bt848_h

  1819.     dev_video_meteor_ioctl_meteor_h

  1820.     direct_h

  1821.     dirent_h

  1822.     dlfcn_h

  1823.     d3d11_h

  1824.     dxva_h

  1825.     ES2_gl_h

  1826.     gsm_h

  1827.     io_h

  1828.     mach_mach_time_h

  1829.     machine_ioctl_bt848_h

  1830.     machine_ioctl_meteor_h

  1831.     malloc_h

  1832.     opencv2_core_core_c_h

  1833.     openjpeg_2_1_openjpeg_h

  1834.     openjpeg_2_0_openjpeg_h

  1835.     openjpeg_1_5_openjpeg_h

  1836.     OpenGL_gl3_h

  1837.     poll_h

  1838.     sndio_h

  1839.     soundcard_h

  1840.     sys_mman_h

  1841.     sys_param_h

  1842.     sys_resource_h

  1843.     sys_select_h

  1844.     sys_soundcard_h

  1845.     sys_time_h

  1846.     sys_un_h

  1847.     sys_videoio_h

  1848.     termios_h

  1849.     udplite_h

  1850.     unistd_h

  1851.     valgrind_valgrind_h

  1852.     windows_h

  1853.     winsock2_h

  1854. "

  1855. 

  1856. INTRINSICS_LIST="

  1857.     intrinsics_neon

  1858. "

  1859. 

  1860. COMPLEX_FUNCS="

  1861.     cabs

  1862.     cexp

  1863. "

  1864. 

  1865. MATH_FUNCS="

  1866.     atanf

  1867.     atan2f

  1868.     cbrt

  1869.     cbrtf

  1870.     copysign

  1871.     cosf

  1872.     erf

  1873.     exp2

  1874.     exp2f

  1875.     expf

  1876.     hypot

  1877.     isfinite

  1878.     isinf

  1879.     isnan

  1880.     ldexpf

  1881.     llrint

  1882.     llrintf

  1883.     log2

  1884.     log2f

  1885.     log10f

  1886.     lrint

  1887.     lrintf

  1888.     powf

  1889.     rint

  1890.     round

  1891.     roundf

  1892.     sinf

  1893.     trunc

  1894.     truncf

  1895. "

  1896. 

  1897. SYSTEM_FUNCS="

  1898.     access

  1899.     aligned_malloc

  1900.     arc4random

  1901.     clock_gettime

  1902.     closesocket

  1903.     CommandLineToArgvW

  1904.     CoTaskMemFree

  1905.     CryptGenRandom

  1906.     dlopen

  1907.     fcntl

  1908.     flt_lim

  1909.     fork

  1910.     getaddrinfo

  1911.     gethrtime

  1912.     getopt

  1913.     GetProcessAffinityMask

  1914.     GetProcessMemoryInfo

  1915.     GetProcessTimes

  1916.     getrusage

  1917.     GetSystemTimeAsFileTime

  1918.     gettimeofday

  1919.     glob

  1920.     glXGetProcAddress

  1921.     gmtime_r

  1922.     inet_aton

  1923.     isatty

  1924.     jack_port_get_latency_range

  1925.     kbhit

  1926.     LoadLibrary

  1927.     localtime_r

  1928.     lstat

  1929.     lzo1x_999_compress

  1930.     mach_absolute_time

  1931.     MapViewOfFile

  1932.     memalign

  1933.     mkstemp

  1934.     mmap

  1935.     mprotect

  1936.     nanosleep

  1937.     PeekNamedPipe

  1938.     posix_memalign

  1939.     pthread_cancel

  1940.     sched_getaffinity

  1941.     SetConsoleTextAttribute

  1942.     SetConsoleCtrlHandler

  1943.     setmode

  1944.     setrlimit

  1945.     Sleep

  1946.     strerror_r

  1947.     sysconf

  1948.     sysctl

  1949.     usleep

  1950.     UTGetOSTypeFromString

  1951.     VirtualAlloc

  1952.     wglGetProcAddress

  1953. "

  1954. 

  1955. TOOLCHAIN_FEATURES="

  1956.     as_dn_directive

  1957.     as_func

  1958.     as_object_arch

  1959.     asm_mod_q

  1960.     attribute_may_alias

  1961.     attribute_packed

  1962.     ebp_available

  1963.     ebx_available

  1964.     gnu_as

  1965.     gnu_windres

  1966.     ibm_asm

  1967.     inline_asm_direct_symbol_refs

  1968.     inline_asm_labels

  1969.     inline_asm_nonlocal_labels

  1970.     pragma_deprecated

  1971.     rsync_contimeout

  1972.     symver_asm_label

  1973.     symver_gnu_asm

  1974.     vfp_args

  1975.     xform_asm

  1976.     xmm_clobbers

  1977. "

  1978. 

  1979. TYPES_LIST="

  1980.     CONDITION_VARIABLE_Ptr

  1981.     socklen_t

  1982.     struct_addrinfo

  1983.     struct_group_source_req

  1984.     struct_ip_mreq_source

  1985.     struct_ipv6_mreq

  1986.     struct_msghdr_msg_flags

  1987.     struct_pollfd

  1988.     struct_rusage_ru_maxrss

  1989.     struct_sctp_event_subscribe

  1990.     struct_sockaddr_in6

  1991.     struct_sockaddr_sa_len

  1992.     struct_sockaddr_storage

  1993.     struct_stat_st_mtim_tv_nsec

  1994.     struct_v4l2_frmivalenum_discrete

  1995. "

  1996. 

  1997. HAVE_LIST="

  1998.     $ARCH_EXT_LIST

  1999.     $(add_suffix _external $ARCH_EXT_LIST)

  2000.     $(add_suffix _inline   $ARCH_EXT_LIST)

  2001.     $ARCH_FEATURES

  2002.     $ATOMICS_LIST

  2003.     $BUILTIN_LIST

  2004.     $COMPLEX_FUNCS

  2005.     $HAVE_LIST_CMDLINE

  2006.     $HAVE_LIST_PUB

  2007.     $HEADERS_LIST

  2008.     $INTRINSICS_LIST

  2009.     $MATH_FUNCS

  2010.     $SYSTEM_FUNCS

  2011.     $THREADS_LIST

  2012.     $TOOLCHAIN_FEATURES

  2013.     $TYPES_LIST

  2014.     atomics_native

  2015.     dos_paths

  2016.     dxva2_lib

  2017.     dxva2api_cobj

  2018.     libc_msvcrt

  2019.     libdc1394_1

  2020.     libdc1394_2

  2021.     makeinfo

  2022.     makeinfo_html

  2023.     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

  2024.     perl

  2025.     pod2man

  2026.     sdl2

  2027.     section_data_rel_ro

  2028.     texi2html

  2029.     threads

  2030.     vaapi_drm

  2031.     vaapi_x11

  2032.     vdpau_x11

  2033.     winrt

  2034.     xlib

  2035. "

  2036. 

  2037. # options emitted with CONFIG_ prefix but not available on the command line

  2038. CONFIG_EXTRA="

  2039.     aandcttables

  2040.     ac3dsp

  2041.     audio_frame_queue

  2042.     audiodsp

  2043.     blockdsp

  2044.     bswapdsp

  2045.     cabac

  2046.     dirac_parse

  2047.     dvprofile

  2048.     exif

  2049.     faandct

  2050.     faanidct

  2051.     fdctdsp

  2052.     flacdsp

  2053.     fmtconvert

  2054.     frame_thread_encoder

  2055.     g722dsp

  2056.     golomb

  2057.     gplv3

  2058.     h263dsp

  2059.     h264chroma

  2060.     h264dsp

  2061.     h264pred

  2062.     h264qpel

  2063.     hpeldsp

  2064.     huffman

  2065.     huffyuvdsp

  2066.     huffyuvencdsp

  2067.     idctdsp

  2068.     iirfilter

  2069.     imdct15

  2070.     intrax8

  2071.     iso_media

  2072.     ividsp

  2073.     jpegtables

  2074.     lgplv3

  2075.     libx262

  2076.     llauddsp

  2077.     llviddsp

  2078.     lpc

  2079.     lzf

  2080.     me_cmp

  2081.     mpeg_er

  2082.     mpegaudio

  2083.     mpegaudiodsp

  2084.     mpegvideo

  2085.     mpegvideoenc

  2086.     mss34dsp

  2087.     pixblockdsp

  2088.     qpeldsp

  2089.     qsv

  2090.     qsvdec

  2091.     qsvenc

  2092.     rangecoder

  2093.     riffdec

  2094.     riffenc

  2095.     rtpdec

  2096.     rtpenc_chain

  2097.     rv34dsp

  2098.     sinewin

  2099.     snappy

  2100.     srtp

  2101.     startcode

  2102.     texturedsp

  2103.     texturedspenc

  2104.     tpeldsp

  2105.     vaapi_encode

  2106.     vc1dsp

  2107.     videodsp

  2108.     vp3dsp

  2109.     vp56dsp

  2110.     vp8dsp

  2111.     vt_bt2020

  2112.     wma_freqs

  2113.     wmv2dsp

  2114. "

  2115. 

  2116. CMDLINE_SELECT="

  2117.     $ARCH_EXT_LIST

  2118.     $CONFIG_LIST

  2119.     $HAVE_LIST_CMDLINE

  2120.     $THREADS_LIST

  2121.     asm

  2122.     cross_compile

  2123.     debug

  2124.     extra_warnings

  2125.     logging

  2126.     lto

  2127.     optimizations

  2128.     rpath

  2129.     stripping

  2130. "

  2131. 

  2132. PATHS_LIST="

  2133.     bindir

  2134.     datadir

  2135.     docdir

  2136.     incdir

  2137.     libdir

  2138.     mandir

  2139.     pkgconfigdir

  2140.     prefix

  2141.     shlibdir

  2142.     install_name_dir

  2143. "

  2144. 

  2145. CMDLINE_SET="

  2146.     $PATHS_LIST

  2147.     ar

  2148.     arch

  2149.     as

  2150.     assert_level

  2151.     build_suffix

  2152.     cc

  2153.     objcc

  2154.     cpu

  2155.     cross_prefix

  2156.     custom_allocator

  2157.     cxx

  2158.     dep_cc

  2159.     doxygen

  2160.     env

  2161.     extra_version

  2162.     gas

  2163.     host_cc

  2164.     host_cflags

  2165.     host_ld

  2166.     host_ldflags

  2167.     host_libs

  2168.     host_os

  2169.     install

  2170.     ld

  2171.     ln_s

  2172.     logfile

  2173.     malloc_prefix

  2174.     nm

  2175.     optflags

  2176.     pkg_config

  2177.     pkg_config_flags

  2178.     progs_suffix

  2179.     random_seed

  2180.     ranlib

  2181.     samples

  2182.     strip

  2183.     sws_max_filter_size

  2184.     sysinclude

  2185.     sysroot

  2186.     target_exec

  2187.     target_os

  2188.     target_path

  2189.     target_samples

  2190.     tempprefix

  2191.     toolchain

  2192.     valgrind

  2193.     yasmexe

  2194. "

  2195. 

  2196. CMDLINE_APPEND="

  2197.     extra_cflags

  2198.     extra_cxxflags

  2199.     extra_objcflags

  2200.     host_cppflags

  2201. "

  2202. 

  2203. # code dependency declarations

  2204. 

  2205. # architecture extensions

  2206. 

  2207. armv5te_deps="arm"

  2208. armv6_deps="arm"

  2209. armv6t2_deps="arm"

  2210. armv8_deps="aarch64"

  2211. neon_deps_any="aarch64 arm"

  2212. intrinsics_neon_deps="neon"

  2213. vfp_deps_any="aarch64 arm"

  2214. vfpv3_deps="vfp"

  2215. setend_deps="arm"

  2216. 

  2217. map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM

  2218. 

  2219. loongson2_deps="mips"

  2220. loongson3_deps="mips"

  2221. mipsfpu_deps="mips"

  2222. mipsdsp_deps="mips"

  2223. mipsdspr2_deps="mips"

  2224. mips32r2_deps="mips"

  2225. mips32r5_deps="mips"

  2226. mips32r6_deps="mips"

  2227. mips64r2_deps="mips"

  2228. mips64r6_deps="mips"

  2229. msa_deps="mipsfpu"

  2230. mmi_deps="mips"

  2231. 

  2232. altivec_deps="ppc"

  2233. dcbzl_deps="ppc"

  2234. ldbrx_deps="ppc"

  2235. ppc4xx_deps="ppc"

  2236. vsx_deps="altivec"

  2237. power8_deps="vsx"

  2238. 

  2239. cpunop_deps="i686"

  2240. x86_64_select="i686"

  2241. x86_64_suggest="fast_cmov"

  2242. 

  2243. amd3dnow_deps="mmx"

  2244. amd3dnowext_deps="amd3dnow"

  2245. i686_deps="x86"

  2246. mmx_deps="x86"

  2247. mmxext_deps="mmx"

  2248. sse_deps="mmxext"

  2249. sse2_deps="sse"

  2250. sse3_deps="sse2"

  2251. ssse3_deps="sse3"

  2252. sse4_deps="ssse3"

  2253. sse42_deps="sse4"

  2254. aesni_deps="sse42"

  2255. avx_deps="sse42"

  2256. xop_deps="avx"

  2257. fma3_deps="avx"

  2258. fma4_deps="avx"

  2259. avx2_deps="avx"

  2260. 

  2261. mmx_external_deps="yasm"

  2262. mmx_inline_deps="inline_asm"

  2263. mmx_suggest="mmx_external mmx_inline"

  2264. 

  2265. for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do

  2266.     eval dep=\$${ext}_deps

  2267.     eval ${ext}_external_deps='"${dep}_external"'

  2268.     eval ${ext}_inline_deps='"${dep}_inline"'

  2269.     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'

  2270. done

  2271. 

  2272. aligned_stack_if_any="aarch64 ppc x86"

  2273. fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"

  2274. fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"

  2275. fast_unaligned_if_any="aarch64 ppc x86"

  2276. simd_align_16_if_any="altivec neon sse"

  2277. 

  2278. # system capabilities

  2279. symver_if_any="symver_asm_label symver_gnu_asm"

  2280. valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"

  2281. 

  2282. # threading support

  2283. atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"

  2284. atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"

  2285. atomics_win32_if="MemoryBarrier"

  2286. atomics_native_if_any="$ATOMICS_LIST"

  2287. w32threads_deps="atomics_native"

  2288. threads_if_any="$THREADS_LIST"

  2289. 

  2290. # subsystems

  2291. dct_select="rdft"

  2292. dirac_parse_select="golomb"

  2293. error_resilience_select="me_cmp"

  2294. faandct_deps="faan fdctdsp"

  2295. faanidct_deps="faan idctdsp"

  2296. h264dsp_select="startcode"

  2297. frame_thread_encoder_deps="encoders threads"

  2298. intrax8_select="blockdsp idctdsp"

  2299. mdct_select="fft"

  2300. me_cmp_select="fdctdsp idctdsp pixblockdsp"

  2301. mpeg_er_select="error_resilience"

  2302. mpegaudio_select="mpegaudiodsp"

  2303. mpegaudiodsp_select="dct"

  2304. mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"

  2305. mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"

  2306. vc1dsp_select="h264chroma qpeldsp startcode"

  2307. rdft_select="fft"

  2308. 

  2309. # decoders / encoders

  2310. aac_decoder_select="imdct15 mdct sinewin"

  2311. aac_fixed_decoder_select="mdct sinewin"

  2312. aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"

  2313. aac_latm_decoder_select="aac_decoder aac_latm_parser"

  2314. ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"

  2315. ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"

  2316. ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2317. ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"

  2318. adpcm_g722_decoder_select="g722dsp"

  2319. adpcm_g722_encoder_select="g722dsp"

  2320. aic_decoder_select="golomb idctdsp"

  2321. alac_encoder_select="lpc"

  2322. als_decoder_select="bswapdsp"

  2323. amrnb_decoder_select="lsp"

  2324. amrwb_decoder_select="lsp"

  2325. amv_decoder_select="sp5x_decoder exif"

  2326. amv_encoder_select="aandcttables jpegtables mpegvideoenc"

  2327. ape_decoder_select="bswapdsp llauddsp"

  2328. apng_decoder_select="zlib"

  2329. apng_encoder_select="huffyuvencdsp zlib"

  2330. asv1_decoder_select="blockdsp bswapdsp idctdsp"

  2331. asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2332. asv2_decoder_select="blockdsp bswapdsp idctdsp"

  2333. asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"

  2334. atrac1_decoder_select="mdct sinewin"

  2335. atrac3_decoder_select="mdct"

  2336. atrac3p_decoder_select="mdct sinewin"

  2337. avrn_decoder_select="exif jpegtables"

  2338. bink_decoder_select="blockdsp hpeldsp"

  2339. binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"

  2340. binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"

  2341. cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"

  2342. cllc_decoder_select="bswapdsp"

  2343. comfortnoise_encoder_select="lpc"

  2344. cook_decoder_select="audiodsp mdct sinewin"

  2345. cscd_decoder_select="lzo"

  2346. cscd_decoder_suggest="zlib"

  2347. dca_decoder_select="mdct"

  2348. dds_decoder_select="texturedsp"

  2349. dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"

  2350. dnxhd_decoder_select="blockdsp idctdsp"

  2351. dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"

  2352. dvvideo_decoder_select="dvprofile idctdsp"

  2353. dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"

  2354. dxa_decoder_select="zlib"

  2355. dxv_decoder_select="lzf texturedsp"

  2356. eac3_decoder_select="ac3_decoder"

  2357. eac3_encoder_select="ac3_encoder"

  2358. eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"

  2359. eatgq_decoder_select="aandcttables"

  2360. eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"

  2361. exr_decoder_select="zlib"

  2362. ffv1_decoder_select="golomb rangecoder"

  2363. ffv1_encoder_select="rangecoder"

  2364. ffvhuff_decoder_select="huffyuv_decoder"

  2365. ffvhuff_encoder_select="huffyuv_encoder"

  2366. fic_decoder_select="golomb"

  2367. flac_decoder_select="flacdsp golomb"

  2368. flac_encoder_select="bswapdsp flacdsp golomb lpc"

  2369. flashsv2_decoder_select="zlib"

  2370. flashsv2_encoder_select="zlib"

  2371. flashsv_decoder_select="zlib"

  2372. flashsv_encoder_select="zlib"

  2373. flv_decoder_select="h263_decoder"

  2374. flv_encoder_select="h263_encoder"

  2375. fourxm_decoder_select="blockdsp bswapdsp"

  2376. fraps_decoder_select="bswapdsp huffman"

  2377. g2m_decoder_select="blockdsp idctdsp jpegtables zlib"

  2378. g729_decoder_select="audiodsp"

  2379. h261_decoder_select="mpegvideo"

  2380. h261_encoder_select="aandcttables mpegvideoenc"

  2381. h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"

  2382. h263_encoder_select="aandcttables h263dsp mpegvideoenc"

  2383. h263i_decoder_select="h263_decoder"

  2384. h263p_decoder_select="h263_decoder"

  2385. h263p_encoder_select="h263_encoder"

  2386. h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"

  2387. h264_decoder_suggest="error_resilience"

  2388. hap_decoder_select="snappy texturedsp"

  2389. hap_encoder_deps="libsnappy"

  2390. hap_encoder_select="texturedspenc"

  2391. hevc_decoder_select="bswapdsp cabac golomb videodsp"

  2392. huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"

  2393. huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"

  2394. iac_decoder_select="imc_decoder"

  2395. imc_decoder_select="bswapdsp fft mdct sinewin"

  2396. indeo3_decoder_select="hpeldsp"

  2397. indeo4_decoder_select="ividsp"

  2398. indeo5_decoder_select="ividsp"

  2399. interplay_video_decoder_select="hpeldsp"

  2400. jpegls_decoder_select="golomb mjpeg_decoder"

  2401. jpegls_encoder_select="golomb"

  2402. jv_decoder_select="blockdsp"

  2403. lagarith_decoder_select="huffyuvdsp"

  2404. ljpeg_encoder_select="aandcttables idctdsp jpegtables"

  2405. loco_decoder_select="golomb"

  2406. magicyuv_decoder_select="huffyuvdsp"

  2407. mdec_decoder_select="blockdsp idctdsp mpegvideo"

  2408. metasound_decoder_select="lsp mdct sinewin"

  2409. mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"

  2410. mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"

  2411. mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"

  2412. mjpegb_decoder_select="mjpeg_decoder"

  2413. mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"

  2414. mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"

  2415. mlp_decoder_select="mlp_parser"

  2416. motionpixels_decoder_select="bswapdsp"

  2417. mp1_decoder_select="mpegaudio"

  2418. mp1float_decoder_select="mpegaudio"

  2419. mp2_decoder_select="mpegaudio"

  2420. mp2float_decoder_select="mpegaudio"

  2421. mp3_decoder_select="mpegaudio"

  2422. mp3adu_decoder_select="mpegaudio"

  2423. mp3adufloat_decoder_select="mpegaudio"

  2424. mp3float_decoder_select="mpegaudio"

  2425. mp3on4_decoder_select="mpegaudio"

  2426. mp3on4float_decoder_select="mpegaudio"

  2427. mpc7_decoder_select="bswapdsp mpegaudiodsp"

  2428. mpc8_decoder_select="mpegaudiodsp"

  2429. mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"

  2430. mpeg_xvmc_decoder_select="mpeg2video_decoder"

  2431. mpegvideo_decoder_select="mpegvideo"

  2432. mpeg1video_decoder_select="mpegvideo"

  2433. mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2434. mpeg2video_decoder_select="mpegvideo"

  2435. mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"

  2436. mpeg4_decoder_select="h263_decoder mpeg4video_parser"

  2437. mpeg4_encoder_select="h263_encoder"

  2438. msa1_decoder_select="mss34dsp"

  2439. msmpeg4v1_decoder_select="h263_decoder"

  2440. msmpeg4v2_decoder_select="h263_decoder"

  2441. msmpeg4v2_encoder_select="h263_encoder"

  2442. msmpeg4v3_decoder_select="h263_decoder"

  2443. msmpeg4v3_encoder_select="h263_encoder"

  2444. mss2_decoder_select="vc1_decoder mpegvideo"

  2445. mts2_decoder_select="mss34dsp"

  2446. mxpeg_decoder_select="mjpeg_decoder"

  2447. nellymoser_decoder_select="mdct sinewin"

  2448. nellymoser_encoder_select="audio_frame_queue mdct sinewin"

  2449. nuv_decoder_select="idctdsp lzo"

  2450. on2avc_decoder_select="mdct"

  2451. opus_decoder_deps="swresample"

  2452. opus_decoder_select="imdct15"

  2453. png_decoder_select="zlib"

  2454. png_encoder_select="huffyuvencdsp zlib"

  2455. prores_decoder_select="blockdsp idctdsp"

  2456. prores_encoder_select="fdctdsp"

  2457. qcelp_decoder_select="lsp"

  2458. qdm2_decoder_select="mdct rdft mpegaudiodsp"

  2459. ra_144_decoder_select="audiodsp"

  2460. ra_144_encoder_select="audio_frame_queue lpc audiodsp"

  2461. ralf_decoder_select="golomb"

  2462. rawvideo_decoder_select="bswapdsp"

  2463. rscc_decoder_select="zlib"

  2464. rtjpeg_decoder_select="me_cmp"

  2465. rv10_decoder_select="h263_decoder"

  2466. rv10_encoder_select="h263_encoder"

  2467. rv20_decoder_select="h263_decoder"

  2468. rv20_encoder_select="h263_encoder"

  2469. rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2470. rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"

  2471. screenpresso_decoder_select="zlib"

  2472. shorten_decoder_select="golomb"

  2473. sipr_decoder_select="lsp"

  2474. snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"

  2475. snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"

  2476. sonic_decoder_select="golomb rangecoder"

  2477. sonic_encoder_select="golomb rangecoder"

  2478. sonic_ls_encoder_select="golomb rangecoder"

  2479. sp5x_decoder_select="mjpeg_decoder"

  2480. svq1_decoder_select="hpeldsp"

  2481. svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"

  2482. svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"

  2483. svq3_decoder_suggest="zlib"

  2484. tak_decoder_select="audiodsp"

  2485. tdsc_decoder_select="zlib mjpeg_decoder"

  2486. theora_decoder_select="vp3_decoder"

  2487. thp_decoder_select="mjpeg_decoder"

  2488. tiff_decoder_suggest="zlib lzma"

  2489. tiff_encoder_suggest="zlib"

  2490. truehd_decoder_select="mlp_parser"

  2491. truemotion2_decoder_select="bswapdsp"

  2492. truespeech_decoder_select="bswapdsp"

  2493. tscc_decoder_select="zlib"

  2494. twinvq_decoder_select="mdct lsp sinewin"

  2495. txd_decoder_select="texturedsp"

  2496. utvideo_decoder_select="bswapdsp"

  2497. utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"

  2498. vble_decoder_select="huffyuvdsp"

  2499. vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"

  2500. vc1_qsv_decoder_deps="libmfx"

  2501. vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"

  2502. vc1image_decoder_select="vc1_decoder"

  2503. vorbis_decoder_select="mdct"

  2504. vorbis_encoder_select="mdct"

  2505. vp3_decoder_select="hpeldsp vp3dsp videodsp"

  2506. vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"

  2507. vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"

  2508. vp6a_decoder_select="vp6_decoder"

  2509. vp6f_decoder_select="vp6_decoder"

  2510. vp7_decoder_select="h264pred videodsp vp8dsp"

  2511. vp8_decoder_select="h264pred videodsp vp8dsp"

  2512. vp9_decoder_select="videodsp vp9_parser"

  2513. webp_decoder_select="vp8_decoder exif"

  2514. wmalossless_decoder_select="llauddsp"

  2515. wmapro_decoder_select="mdct sinewin wma_freqs"

  2516. wmav1_decoder_select="mdct sinewin wma_freqs"

  2517. wmav1_encoder_select="mdct sinewin wma_freqs"

  2518. wmav2_decoder_select="mdct sinewin wma_freqs"

  2519. wmav2_encoder_select="mdct sinewin wma_freqs"

  2520. wmavoice_decoder_select="lsp rdft dct mdct sinewin"

  2521. wmv1_decoder_select="h263_decoder"

  2522. wmv1_encoder_select="h263_encoder"

  2523. wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"

  2524. wmv2_encoder_select="h263_encoder wmv2dsp"

  2525. wmv3_decoder_select="vc1_decoder"

  2526. wmv3image_decoder_select="wmv3_decoder"

  2527. xma1_decoder_select="wmapro_decoder"

  2528. xma2_decoder_select="wmapro_decoder"

  2529. zerocodec_decoder_select="zlib"

  2530. zlib_decoder_select="zlib"

  2531. zlib_encoder_select="zlib"

  2532. zmbv_decoder_select="zlib"

  2533. zmbv_encoder_select="zlib"

  2534. 

  2535. # platform codecs

  2536. audiotoolbox_deps="AudioToolbox_AudioToolbox_h"

  2537. audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"

  2538. 

  2539. # hardware accelerators

  2540. crystalhd_deps="libcrystalhd_libcrystalhd_if_h"

  2541. cuvid_deps="cuda"

  2542. d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"

  2543. dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"

  2544. vaapi_deps="va_va_h"

  2545. vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"

  2546. vda_framework_extralibs="-framework VideoDecodeAcceleration"

  2547. vda_deps="vda_framework pthreads"

  2548. vda_extralibs="-framework CoreFoundation -framework QuartzCore"

  2549. vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"

  2550. videotoolbox_hwaccel_deps="videotoolbox pthreads"

  2551. videotoolbox_hwaccel_extralibs="-framework QuartzCore"

  2552. xvmc_deps="X11_extensions_XvMClib_h"

  2553. 

  2554. h263_cuvid_hwaccel_deps="cuda cuvid"

  2555. h263_vaapi_hwaccel_deps="vaapi"

  2556. h263_vaapi_hwaccel_select="h263_decoder"

  2557. h263_videotoolbox_hwaccel_deps="videotoolbox"

  2558. h263_videotoolbox_hwaccel_select="h263_decoder"

  2559. h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"

  2560. h264_cuvid_hwaccel_deps="cuda cuvid"

  2561. h264_d3d11va_hwaccel_deps="d3d11va"

  2562. h264_d3d11va_hwaccel_select="h264_decoder"

  2563. h264_dxva2_hwaccel_deps="dxva2"

  2564. h264_dxva2_hwaccel_select="h264_decoder"

  2565. h264_mediacodec_decoder_deps="mediacodec"

  2566. h264_mediacodec_hwaccel_deps="mediacodec"

  2567. h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"

  2568. h264_mmal_decoder_deps="mmal"

  2569. h264_mmal_decoder_select="mmal"

  2570. h264_mmal_hwaccel_deps="mmal"

  2571. h264_omx_encoder_deps="omx"

  2572. h264_qsv_hwaccel_deps="libmfx"

  2573. h264_vaapi_hwaccel_deps="vaapi"

  2574. h264_vaapi_hwaccel_select="h264_decoder"

  2575. h264_vda_decoder_deps="vda"

  2576. h264_vda_decoder_select="h264_decoder"

  2577. h264_vda_hwaccel_deps="vda"

  2578. h264_vda_hwaccel_select="h264_decoder"

  2579. h264_vda_old_hwaccel_deps="vda"

  2580. h264_vda_old_hwaccel_select="h264_decoder"

  2581. h264_vdpau_decoder_deps="vdpau"

  2582. h264_vdpau_decoder_select="h264_decoder"

  2583. h264_vdpau_hwaccel_deps="vdpau"

  2584. h264_vdpau_hwaccel_select="h264_decoder"

  2585. h264_videotoolbox_hwaccel_deps="videotoolbox"

  2586. h264_videotoolbox_hwaccel_select="h264_decoder"

  2587. hevc_cuvid_hwaccel_deps="cuda cuvid"

  2588. hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"

  2589. hevc_d3d11va_hwaccel_select="hevc_decoder"

  2590. hevc_mediacodec_decoder_deps="mediacodec"

  2591. hevc_mediacodec_hwaccel_deps="mediacodec"

  2592. hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"

  2593. hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"

  2594. hevc_dxva2_hwaccel_select="hevc_decoder"

  2595. hevc_qsv_hwaccel_deps="libmfx"

  2596. hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"

  2597. hevc_vaapi_hwaccel_select="hevc_decoder"

  2598. hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"

  2599. hevc_vdpau_hwaccel_select="hevc_decoder"

  2600. mjpeg_cuvid_hwaccel_deps="cuda cuvid"

  2601. mpeg_vdpau_decoder_deps="vdpau"

  2602. mpeg_vdpau_decoder_select="mpeg2video_decoder"

  2603. mpeg_xvmc_hwaccel_deps="xvmc"

  2604. mpeg_xvmc_hwaccel_select="mpeg2video_decoder"

  2605. mpeg1_cuvid_hwaccel_deps="cuda cuvid"

  2606. mpeg1_vdpau_decoder_deps="vdpau"

  2607. mpeg1_vdpau_decoder_select="mpeg1video_decoder"

  2608. mpeg1_vdpau_hwaccel_deps="vdpau"

  2609. mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"

  2610. mpeg1_videotoolbox_hwaccel_deps="videotoolbox"

  2611. mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"

  2612. mpeg1_xvmc_hwaccel_deps="xvmc"

  2613. mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"

  2614. mpeg2_crystalhd_decoder_select="crystalhd"

  2615. mpeg2_cuvid_hwaccel_deps="cuda cuvid"

  2616. mpeg2_d3d11va_hwaccel_deps="d3d11va"

  2617. mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"

  2618. mpeg2_dxva2_hwaccel_deps="dxva2"

  2619. mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"

  2620. mpeg2_mmal_decoder_deps="mmal"

  2621. mpeg2_mmal_decoder_select="mmal"

  2622. mpeg2_mmal_hwaccel_deps="mmal"

  2623. mpeg2_qsv_hwaccel_deps="libmfx"

  2624. mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"

  2625. mpeg2_vaapi_hwaccel_deps="vaapi"

  2626. mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"

  2627. mpeg2_vdpau_hwaccel_deps="vdpau"

  2628. mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"

  2629. mpeg2_videotoolbox_hwaccel_deps="videotoolbox"

  2630. mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"

  2631. mpeg2_xvmc_hwaccel_deps="xvmc"

  2632. mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"

  2633. mpeg4_crystalhd_decoder_select="crystalhd"

  2634. mpeg4_cuvid_hwaccel_deps="cuda cuvid"

  2635. mpeg4_mmal_decoder_deps="mmal"

  2636. mpeg4_mmal_decoder_select="mmal"

  2637. mpeg4_mmal_hwaccel_deps="mmal"

  2638. mpeg4_omx_encoder_deps="omx"

  2639. mpeg4_vaapi_hwaccel_deps="vaapi"

  2640. mpeg4_vaapi_hwaccel_select="mpeg4_decoder"

  2641. mpeg4_vdpau_decoder_deps="vdpau"

  2642. mpeg4_vdpau_decoder_select="mpeg4_decoder"

  2643. mpeg4_vdpau_hwaccel_deps="vdpau"

  2644. mpeg4_vdpau_hwaccel_select="mpeg4_decoder"

  2645. mpeg4_videotoolbox_hwaccel_deps="videotoolbox"

  2646. mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"

  2647. msmpeg4_crystalhd_decoder_select="crystalhd"

  2648. vc1_crystalhd_decoder_select="crystalhd"

  2649. vc1_cuvid_hwaccel_deps="cuda cuvid"

  2650. vc1_d3d11va_hwaccel_deps="d3d11va"

  2651. vc1_d3d11va_hwaccel_select="vc1_decoder"

  2652. vc1_dxva2_hwaccel_deps="dxva2"

  2653. vc1_dxva2_hwaccel_select="vc1_decoder"

  2654. vc1_mmal_decoder_deps="mmal"

  2655. vc1_mmal_decoder_select="mmal"

  2656. vc1_mmal_hwaccel_deps="mmal"

  2657. vc1_qsv_hwaccel_deps="libmfx"

  2658. vc1_qsv_hwaccel_select="qsvdec_vc1"

  2659. vc1_vaapi_hwaccel_deps="vaapi"

  2660. vc1_vaapi_hwaccel_select="vc1_decoder"

  2661. vc1_vdpau_decoder_deps="vdpau"

  2662. vc1_vdpau_decoder_select="vc1_decoder"

  2663. vc1_vdpau_hwaccel_deps="vdpau"

  2664. vc1_vdpau_hwaccel_select="vc1_decoder"

  2665. vp8_cuvid_hwaccel_deps="cuda cuvid"

  2666. vp9_cuvid_hwaccel_deps="cuda cuvid"

  2667. vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"

  2668. vp9_d3d11va_hwaccel_select="vp9_decoder"

  2669. vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"

  2670. vp9_dxva2_hwaccel_select="vp9_decoder"

  2671. vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"

  2672. vp9_vaapi_hwaccel_select="vp9_decoder"

  2673. wmv3_crystalhd_decoder_select="crystalhd"

  2674. wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"

  2675. wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"

  2676. wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"

  2677. wmv3_vdpau_decoder_select="vc1_vdpau_decoder"

  2678. wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"

  2679. 

  2680. # hardware-accelerated codecs

  2681. omx_deps="dlopen pthreads"

  2682. omx_extralibs='$ldl'

  2683. qsvdec_select="qsv"

  2684. qsvenc_select="qsv"

  2685. vaapi_encode_deps="vaapi"

  2686. 

  2687. hwupload_cuda_filter_deps="cuda"

  2688. scale_npp_filter_deps="cuda libnpp"

  2689. 

  2690. nvenc_deps_any="dlopen LoadLibrary"

  2691. nvenc_encoder_deps="nvenc"

  2692. h263_cuvid_decoder_deps="cuda cuvid"

  2693. h263_cuvid_decoder_select="h263_cuvid_hwaccel"

  2694. h264_cuvid_decoder_deps="cuda cuvid"

  2695. h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"

  2696. h264_nvenc_encoder_deps="nvenc"

  2697. h264_qsv_decoder_deps="libmfx"

  2698. h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"

  2699. h264_qsv_encoder_deps="libmfx"

  2700. h264_qsv_encoder_select="qsvenc"

  2701. h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"

  2702. h264_vaapi_encoder_select="vaapi_encode golomb"

  2703. 

  2704. hevc_cuvid_decoder_deps="cuda cuvid"

  2705. hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"

  2706. hevc_nvenc_encoder_deps="nvenc"

  2707. hevc_qsv_decoder_deps="libmfx"

  2708. hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"

  2709. hevc_qsv_encoder_deps="libmfx"

  2710. hevc_qsv_encoder_select="qsvenc"

  2711. hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"

  2712. hevc_vaapi_encoder_select="vaapi_encode golomb"

  2713. mjpeg_cuvid_decoder_deps="cuda cuvid"

  2714. mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"

  2715. mpeg1_cuvid_decoder_deps="cuda cuvid"

  2716. mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"

  2717. mpeg2_cuvid_decoder_deps="cuda cuvid"

  2718. mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"

  2719. mpeg2_qsv_decoder_deps="libmfx"

  2720. mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"

  2721. mpeg2_qsv_encoder_deps="libmfx"

  2722. mpeg2_qsv_encoder_select="qsvenc"

  2723. mpeg4_cuvid_decoder_deps="cuda cuvid"

  2724. mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"

  2725. nvenc_h264_encoder_deps="nvenc"

  2726. nvenc_hevc_encoder_deps="nvenc"

  2727. 

  2728. vc1_cuvid_decoder_deps="cuda cuvid"

  2729. vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"

  2730. vp8_cuvid_decoder_deps="cuda cuvid"

  2731. vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"

  2732. vp9_cuvid_decoder_deps="cuda cuvid"

  2733. vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"

  2734. 

  2735. # parsers

  2736. h264_parser_select="golomb h264dsp"

  2737. hevc_parser_select="golomb"

  2738. mpegvideo_parser_select="mpegvideo"

  2739. mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"

  2740. vc1_parser_select="vc1dsp"

  2741. 

  2742. # bitstream_filters

  2743. mjpeg2jpeg_bsf_select="jpegtables"

  2744. 

  2745. # external libraries

  2746. aac_at_decoder_deps="audiotoolbox"

  2747. ac3_at_decoder_deps="audiotoolbox"

  2748. ac3_at_decoder_select="ac3_parser"

  2749. adpcm_ima_qt_at_decoder_deps="audiotoolbox"

  2750. alac_at_decoder_deps="audiotoolbox"

  2751. amr_nb_at_decoder_deps="audiotoolbox"

  2752. eac3_at_decoder_deps="audiotoolbox"

  2753. eac3_at_decoder_select="ac3_parser"

  2754. gsm_ms_at_decoder_deps="audiotoolbox"

  2755. ilbc_at_decoder_deps="audiotoolbox"

  2756. mp1_at_decoder_deps="audiotoolbox"

  2757. mp2_at_decoder_deps="audiotoolbox"

  2758. mp3_at_decoder_deps="audiotoolbox"

  2759. pcm_alaw_at_decoder_deps="audiotoolbox"

  2760. pcm_mulaw_at_decoder_deps="audiotoolbox"

  2761. qdmc_at_decoder_deps="audiotoolbox"

  2762. qdm2_at_decoder_deps="audiotoolbox"

  2763. aac_at_encoder_deps="audiotoolbox"

  2764. aac_at_encoder_select="audio_frame_queue"

  2765. alac_at_encoder_deps="audiotoolbox"

  2766. alac_at_encoder_select="audio_frame_queue"

  2767. ilbc_at_encoder_deps="audiotoolbox"

  2768. ilbc_at_encoder_select="audio_frame_queue"

  2769. pcm_alaw_at_encoder_deps="audiotoolbox"

  2770. pcm_alaw_at_encoder_select="audio_frame_queue"

  2771. pcm_mulaw_at_encoder_deps="audiotoolbox"

  2772. pcm_mulaw_at_encoder_select="audio_frame_queue"

  2773. chromaprint_muxer_deps="chromaprint"

  2774. h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"

  2775. libcelt_decoder_deps="libcelt"

  2776. libfaac_encoder_deps="libfaac"

  2777. libfaac_encoder_select="audio_frame_queue"

  2778. libfdk_aac_decoder_deps="libfdk_aac"

  2779. libfdk_aac_encoder_deps="libfdk_aac"

  2780. libfdk_aac_encoder_select="audio_frame_queue"

  2781. libgme_demuxer_deps="libgme"

  2782. libgsm_decoder_deps="libgsm"

  2783. libgsm_encoder_deps="libgsm"

  2784. libgsm_ms_decoder_deps="libgsm"

  2785. libgsm_ms_encoder_deps="libgsm"

  2786. libilbc_decoder_deps="libilbc"

  2787. libilbc_encoder_deps="libilbc"

  2788. libkvazaar_encoder_deps="libkvazaar"

  2789. libmodplug_demuxer_deps="libmodplug"

  2790. libmp3lame_encoder_deps="libmp3lame"

  2791. libmp3lame_encoder_select="audio_frame_queue"

  2792. libopencore_amrnb_decoder_deps="libopencore_amrnb"

  2793. libopencore_amrnb_encoder_deps="libopencore_amrnb"

  2794. libopencore_amrnb_encoder_select="audio_frame_queue"

  2795. libopencore_amrwb_decoder_deps="libopencore_amrwb"

  2796. libopenh264_decoder_deps="libopenh264"

  2797. libopenh264_decoder_select="h264_mp4toannexb_bsf"

  2798. libopenh264_encoder_deps="libopenh264"

  2799. libopenjpeg_decoder_deps="libopenjpeg"

  2800. libopenjpeg_encoder_deps="libopenjpeg"

  2801. libopenmpt_demuxer_deps="libopenmpt"

  2802. libopus_decoder_deps="libopus"

  2803. libopus_encoder_deps="libopus"

  2804. libopus_encoder_select="audio_frame_queue"

  2805. libschroedinger_decoder_deps="libschroedinger"

  2806. libschroedinger_encoder_deps="libschroedinger"

  2807. libshine_encoder_deps="libshine"

  2808. libshine_encoder_select="audio_frame_queue"

  2809. libspeex_decoder_deps="libspeex"

  2810. libspeex_encoder_deps="libspeex"

  2811. libspeex_encoder_select="audio_frame_queue"

  2812. libtheora_encoder_deps="libtheora"

  2813. libtwolame_encoder_deps="libtwolame"

  2814. libvo_amrwbenc_encoder_deps="libvo_amrwbenc"

  2815. libvorbis_decoder_deps="libvorbis"

  2816. libvorbis_encoder_deps="libvorbis"

  2817. libvorbis_encoder_select="audio_frame_queue"

  2818. libvpx_vp8_decoder_deps="libvpx"

  2819. libvpx_vp8_encoder_deps="libvpx"

  2820. libvpx_vp9_decoder_deps="libvpx"

  2821. libvpx_vp9_encoder_deps="libvpx"

  2822. libwavpack_encoder_deps="libwavpack"

  2823. libwebp_encoder_deps="libwebp"

  2824. libwebp_anim_encoder_deps="libwebp"

  2825. libx262_encoder_deps="libx262"

  2826. libx264_encoder_deps="libx264"

  2827. libx264rgb_encoder_deps="libx264 x264_csp_bgr"

  2828. libx264rgb_encoder_select="libx264_encoder"

  2829. libx265_encoder_deps="libx265"

  2830. libxavs_encoder_deps="libxavs"

  2831. libxvid_encoder_deps="libxvid"

  2832. libzvbi_teletext_decoder_deps="libzvbi"

  2833. videotoolbox_deps="VideoToolbox_VideoToolbox_h"

  2834. videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"

  2835. videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"

  2836. videotoolbox_encoder_suggest="vda_framework vt_bt2020"

  2837. vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"

  2838. 

  2839. # demuxers / muxers

  2840. ac3_demuxer_select="ac3_parser"

  2841. asf_demuxer_select="riffdec"

  2842. asf_o_demuxer_select="riffdec"

  2843. asf_muxer_select="riffenc"

  2844. asf_stream_muxer_select="asf_muxer"

  2845. avi_demuxer_select="iso_media riffdec exif"

  2846. avi_muxer_select="riffenc"

  2847. avisynth_demuxer_deps="avisynth"

  2848. avisynth_demuxer_select="riffdec"

  2849. caf_demuxer_select="iso_media riffdec"

  2850. dash_muxer_select="mp4_muxer"

  2851. dirac_demuxer_select="dirac_parser"

  2852. dts_demuxer_select="dca_parser"

  2853. dtshd_demuxer_select="dca_parser"

  2854. dv_demuxer_select="dvprofile"

  2855. dv_muxer_select="dvprofile"

  2856. dxa_demuxer_select="riffdec"

  2857. eac3_demuxer_select="ac3_parser"

  2858. f4v_muxer_select="mov_muxer"

  2859. fifo_muxer_deps="threads"

  2860. flac_demuxer_select="flac_parser"

  2861. hds_muxer_select="flv_muxer"

  2862. hls_muxer_select="mpegts_muxer"

  2863. image2_alias_pix_demuxer_select="image2_demuxer"

  2864. image2_brender_pix_demuxer_select="image2_demuxer"

  2865. ipod_muxer_select="mov_muxer"

  2866. ismv_muxer_select="mov_muxer"

  2867. libnut_demuxer_deps="libnut"

  2868. libnut_muxer_deps="libnut"

  2869. matroska_audio_muxer_select="matroska_muxer"

  2870. matroska_demuxer_select="iso_media riffdec"

  2871. matroska_demuxer_suggest="bzlib lzo zlib"

  2872. matroska_muxer_select="iso_media riffenc"

  2873. mmf_muxer_select="riffenc"

  2874. mov_demuxer_select="iso_media riffdec"

  2875. mov_demuxer_suggest="zlib"

  2876. mov_muxer_select="iso_media riffenc rtpenc_chain"

  2877. mp3_demuxer_select="mpegaudio_parser"

  2878. mp4_muxer_select="mov_muxer"

  2879. mpegts_demuxer_select="iso_media"

  2880. mpegts_muxer_select="adts_muxer latm_muxer"

  2881. mpegtsraw_demuxer_select="mpegts_demuxer"

  2882. mxf_d10_muxer_select="mxf_muxer"

  2883. mxf_opatom_muxer_select="mxf_muxer"

  2884. nut_muxer_select="riffenc"

  2885. nuv_demuxer_select="riffdec"

  2886. oga_muxer_select="ogg_muxer"

  2887. ogg_demuxer_select="dirac_parse"

  2888. ogv_muxer_select="ogg_muxer"

  2889. opus_muxer_select="ogg_muxer"

  2890. psp_muxer_select="mov_muxer"

  2891. rtp_demuxer_select="sdp_demuxer"

  2892. rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"

  2893. rtsp_demuxer_select="http_protocol rtpdec"

  2894. rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"

  2895. sap_demuxer_select="sdp_demuxer"

  2896. sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"

  2897. sdp_demuxer_select="rtpdec"

  2898. smoothstreaming_muxer_select="ismv_muxer"

  2899. spdif_muxer_select="aac_parser"

  2900. spx_muxer_select="ogg_muxer"

  2901. swf_demuxer_suggest="zlib"

  2902. tak_demuxer_select="tak_parser"

  2903. tg2_muxer_select="mov_muxer"

  2904. tgp_muxer_select="mov_muxer"

  2905. vobsub_demuxer_select="mpegps_demuxer"

  2906. w64_demuxer_select="wav_demuxer"

  2907. w64_muxer_select="wav_muxer"

  2908. wav_demuxer_select="riffdec"

  2909. wav_muxer_select="riffenc"

  2910. webm_muxer_select="iso_media riffenc"

  2911. webm_dash_manifest_demuxer_select="matroska_demuxer"

  2912. wtv_demuxer_select="mpegts_demuxer riffdec"

  2913. wtv_muxer_select="mpegts_muxer riffenc"

  2914. xmv_demuxer_select="riffdec"

  2915. xwma_demuxer_select="riffdec"

  2916. 

  2917. # indevs / outdevs

  2918. alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"

  2919. alsa_outdev_deps="alsa_asoundlib_h"

  2920. avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"

  2921. avfoundation_indev_select="avfoundation"

  2922. bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

  2923. caca_outdev_deps="libcaca"

  2924. decklink_indev_deps="decklink pthreads"

  2925. decklink_indev_extralibs="-lstdc++"

  2926. decklink_outdev_deps="decklink pthreads"

  2927. decklink_outdev_extralibs="-lstdc++"

  2928. dshow_indev_deps="IBaseFilter"

  2929. dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"

  2930. dv1394_indev_deps="dv1394"

  2931. dv1394_indev_select="dv_demuxer"

  2932. fbdev_indev_deps="linux_fb_h"

  2933. fbdev_outdev_deps="linux_fb_h"

  2934. gdigrab_indev_deps="CreateDIBSection"

  2935. gdigrab_indev_extralibs="-lgdi32"

  2936. gdigrab_indev_select="bmp_decoder"

  2937. iec61883_indev_deps="libiec61883"

  2938. jack_indev_deps="jack_jack_h"

  2939. jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"

  2940. lavfi_indev_deps="avfilter"

  2941. libcdio_indev_deps="libcdio"

  2942. libdc1394_indev_deps="libdc1394"

  2943. libv4l2_indev_deps="libv4l2"

  2944. openal_indev_deps="openal"

  2945. opengl_outdev_deps="opengl"

  2946. oss_indev_deps_any="soundcard_h sys_soundcard_h"

  2947. oss_outdev_deps_any="soundcard_h sys_soundcard_h"

  2948. pulse_indev_deps="libpulse"

  2949. pulse_outdev_deps="libpulse"

  2950. qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"

  2951. qtkit_indev_select="qtkit"

  2952. sdl2_outdev_deps="sdl2"

  2953. sndio_indev_deps="sndio_h"

  2954. sndio_outdev_deps="sndio_h"

  2955. v4l_indev_deps="linux_videodev_h"

  2956. v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"

  2957. v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"

  2958. vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"

  2959. vfwcap_indev_extralibs="-lavicap32"

  2960. x11grab_indev_deps="x11grab"

  2961. x11grab_xcb_indev_deps="libxcb"

  2962. xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"

  2963. xv_outdev_extralibs="-lXv -lX11 -lXext"

  2964. 

  2965. # protocols

  2966. async_protocol_deps="threads"

  2967. bluray_protocol_deps="libbluray"

  2968. ffrtmpcrypt_protocol_deps="!librtmp_protocol"

  2969. ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"

  2970. ffrtmpcrypt_protocol_select="tcp_protocol"

  2971. ffrtmphttp_protocol_deps="!librtmp_protocol"

  2972. ffrtmphttp_protocol_select="http_protocol"

  2973. ftp_protocol_select="tcp_protocol"

  2974. gopher_protocol_select="network"

  2975. http_protocol_select="tcp_protocol"

  2976. httpproxy_protocol_select="tcp_protocol"

  2977. https_protocol_select="tls_protocol"

  2978. icecast_protocol_select="http_protocol"

  2979. librtmp_protocol_deps="librtmp"

  2980. librtmpe_protocol_deps="librtmp"

  2981. librtmps_protocol_deps="librtmp"

  2982. librtmpt_protocol_deps="librtmp"

  2983. librtmpte_protocol_deps="librtmp"

  2984. libsmbclient_protocol_deps="libsmbclient gplv3"

  2985. libssh_protocol_deps="libssh"

  2986. mmsh_protocol_select="http_protocol"

  2987. mmst_protocol_select="network"

  2988. rtmp_protocol_deps="!librtmp_protocol"

  2989. rtmp_protocol_select="tcp_protocol"

  2990. rtmpe_protocol_select="ffrtmpcrypt_protocol"

  2991. rtmps_protocol_deps="!librtmp_protocol"

  2992. rtmps_protocol_select="tls_protocol"

  2993. rtmpt_protocol_select="ffrtmphttp_protocol"

  2994. rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"

  2995. rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"

  2996. rtp_protocol_select="udp_protocol"

  2997. sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"

  2998. sctp_protocol_select="network"

  2999. srtp_protocol_select="rtp_protocol srtp"

  3000. tcp_protocol_select="network"

  3001. tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"

  3002. tls_gnutls_protocol_select="tcp_protocol"

  3003. tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"

  3004. tls_openssl_protocol_select="tcp_protocol"

  3005. tls_schannel_protocol_deps="schannel"

  3006. tls_schannel_protocol_select="tcp_protocol"

  3007. tls_securetransport_protocol_deps="securetransport"

  3008. tls_securetransport_protocol_select="tcp_protocol"

  3009. tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"

  3010. udp_protocol_select="network"

  3011. udplite_protocol_select="network"

  3012. unix_protocol_deps="sys_un_h"

  3013. unix_protocol_select="network"

  3014. 

  3015. # filters

  3016. afftfilt_filter_deps="avcodec"

  3017. afftfilt_filter_select="fft"

  3018. amovie_filter_deps="avcodec avformat"

  3019. aresample_filter_deps="swresample"

  3020. ass_filter_deps="libass"

  3021. asyncts_filter_deps="avresample"

  3022. atempo_filter_deps="avcodec"

  3023. atempo_filter_select="rdft"

  3024. azmq_filter_deps="libzmq"

  3025. blackframe_filter_deps="gpl"

  3026. boxblur_filter_deps="gpl"

  3027. bs2b_filter_deps="libbs2b"

  3028. colormatrix_filter_deps="gpl"

  3029. cover_rect_filter_deps="avcodec avformat gpl"

  3030. cropdetect_filter_deps="gpl"

  3031. delogo_filter_deps="gpl"

  3032. deshake_filter_select="pixelutils"

  3033. drawtext_filter_deps="libfreetype"

  3034. ebur128_filter_deps="gpl"

  3035. eq_filter_deps="gpl"

  3036. fftfilt_filter_deps="avcodec"

  3037. fftfilt_filter_select="rdft"

  3038. find_rect_filter_deps="avcodec avformat gpl"

  3039. firequalizer_filter_deps="avcodec"

  3040. firequalizer_filter_select="rdft"

  3041. flite_filter_deps="libflite"

  3042. framerate_filter_select="pixelutils"

  3043. frei0r_filter_deps="frei0r dlopen"

  3044. frei0r_src_filter_deps="frei0r dlopen"

  3045. fspp_filter_deps="gpl"

  3046. geq_filter_deps="gpl"

  3047. histeq_filter_deps="gpl"

  3048. hqdn3d_filter_deps="gpl"

  3049. interlace_filter_deps="gpl"

  3050. kerndeint_filter_deps="gpl"

  3051. ladspa_filter_deps="ladspa dlopen"

  3052. loudnorm_filter_deps="libebur128"

  3053. mcdeint_filter_deps="avcodec gpl"

  3054. movie_filter_deps="avcodec avformat"

  3055. mpdecimate_filter_deps="gpl"

  3056. mpdecimate_filter_select="pixelutils"

  3057. mptestsrc_filter_deps="gpl"

  3058. negate_filter_deps="lut_filter"

  3059. nnedi_filter_deps="gpl"

  3060. ocr_filter_deps="libtesseract"

  3061. ocv_filter_deps="libopencv"

  3062. owdenoise_filter_deps="gpl"

  3063. pan_filter_deps="swresample"

  3064. perspective_filter_deps="gpl"

  3065. phase_filter_deps="gpl"

  3066. pp7_filter_deps="gpl"

  3067. pp_filter_deps="gpl postproc"

  3068. pullup_filter_deps="gpl"

  3069. removelogo_filter_deps="avcodec avformat swscale"

  3070. repeatfields_filter_deps="gpl"

  3071. resample_filter_deps="avresample"

  3072. rubberband_filter_deps="librubberband"

  3073. sab_filter_deps="gpl swscale"

  3074. scale2ref_filter_deps="swscale"

  3075. scale_filter_deps="swscale"

  3076. select_filter_select="pixelutils"

  3077. showcqt_filter_deps="avcodec avformat swscale"

  3078. showcqt_filter_select="fft"

  3079. showfreqs_filter_deps="avcodec"

  3080. showfreqs_filter_select="fft"

  3081. showspectrum_filter_deps="avcodec"

  3082. showspectrum_filter_select="fft"

  3083. showspectrumpic_filter_deps="avcodec"

  3084. showspectrumpic_filter_select="fft"

  3085. smartblur_filter_deps="gpl swscale"

  3086. sofalizer_filter_deps="netcdf avcodec"

  3087. sofalizer_filter_select="fft"

  3088. spectrumsynth_filter_deps="avcodec"

  3089. spectrumsynth_filter_select="fft"

  3090. spp_filter_deps="gpl avcodec"

  3091. spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"

  3092. stereo3d_filter_deps="gpl"

  3093. subtitles_filter_deps="avformat avcodec libass"

  3094. super2xsai_filter_deps="gpl"

  3095. pixfmts_super2xsai_test_deps="super2xsai_filter"

  3096. tinterlace_filter_deps="gpl"

  3097. tinterlace_merge_test_deps="tinterlace_filter"

  3098. tinterlace_pad_test_deps="tinterlace_filter"

  3099. uspp_filter_deps="gpl avcodec"

  3100. vaguedenoiser_filter_deps="gpl"

  3101. vidstabdetect_filter_deps="libvidstab"

  3102. vidstabtransform_filter_deps="libvidstab"

  3103. zmq_filter_deps="libzmq"

  3104. zoompan_filter_deps="swscale"

  3105. zscale_filter_deps="libzimg"

  3106. scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"

  3107. 

  3108. # examples

  3109. avio_dir_cmd_deps="avformat avutil"

  3110. avio_reading_deps="avformat avcodec avutil"

  3111. decoding_encoding_example_deps="avcodec avformat avutil"

  3112. demuxing_decoding_example_deps="avcodec avformat avutil"

  3113. extract_mvs_example_deps="avcodec avformat avutil"

  3114. filter_audio_example_deps="avfilter avutil"

  3115. filtering_audio_example_deps="avfilter avcodec avformat avutil"

  3116. filtering_video_example_deps="avfilter avcodec avformat avutil"

  3117. http_multiclient_example_deps="avformat avutil"

  3118. metadata_example_deps="avformat avutil"

  3119. muxing_example_deps="avcodec avformat avutil swscale"

  3120. qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"

  3121. remuxing_example_deps="avcodec avformat avutil"

  3122. resampling_audio_example_deps="avutil swresample"

  3123. scaling_video_example_deps="avutil swscale"

  3124. transcode_aac_example_deps="avcodec avformat swresample"

  3125. transcoding_example_deps="avfilter avcodec avformat avutil"

  3126. 

  3127. # libraries, in linking order

  3128. avcodec_deps="avutil"

  3129. avdevice_deps="avformat avcodec avutil"

  3130. avfilter_deps="avutil"

  3131. avformat_deps="avcodec avutil"

  3132. avresample_deps="avutil"

  3133. postproc_deps="avutil gpl"

  3134. swresample_deps="avutil"

  3135. swscale_deps="avutil"

  3136. 

  3137. # programs

  3138. ffmpeg_deps="avcodec avfilter avformat swresample"

  3139. ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter

  3140.                null_filter

  3141.                setpts_filter trim_filter"

  3142. ffplay_deps="avcodec avformat swscale swresample sdl2"

  3143. ffplay_libs='$sdl2_libs'

  3144. ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"

  3145. ffprobe_deps="avcodec avformat"

  3146. ffserver_deps="avformat fork sarestart"

  3147. ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"

  3148. 

  3149. # documentation

  3150. podpages_deps="perl"

  3151. manpages_deps="perl pod2man"

  3152. htmlpages_deps="perl"

  3153. htmlpages_deps_any="makeinfo_html texi2html"

  3154. txtpages_deps="perl makeinfo"

  3155. doc_deps_any="manpages htmlpages podpages txtpages"

  3156. 

  3157. # default parameters

  3158. 

  3159. logfile="config.log"

  3160. 

  3161. # installation paths

  3162. prefix_default="/usr/local"

  3163. bindir_default='${prefix}/bin'

  3164. datadir_default='${prefix}/share/ffmpeg'

  3165. docdir_default='${prefix}/share/doc/ffmpeg'

  3166. incdir_default='${prefix}/include'

  3167. libdir_default='${prefix}/lib'

  3168. mandir_default='${prefix}/share/man'

  3169. 

  3170. # toolchain

  3171. ar_default="ar"

  3172. cc_default="gcc"

  3173. cxx_default="g++"

  3174. host_cc_default="gcc"

  3175. cp_f="cp -f"

  3176. doxygen_default="doxygen"

  3177. install="install"

  3178. ln_s_default="ln -s -f"

  3179. nm_default="nm -g"

  3180. objformat="elf"

  3181. pkg_config_default=pkg-config

  3182. ranlib_default="ranlib"

  3183. strip_default="strip"

  3184. version_script='--version-script'

  3185. yasmexe_default="yasm"

  3186. windres_default="windres"

  3187. 

  3188. # OS

  3189. target_os_default=$(tolower $(uname -s))

  3190. host_os=$target_os_default

  3191. 

  3192. # machine

  3193. if test "$target_os_default" = aix; then

  3194.     arch_default=$(uname -p)

  3195.     strip_default="strip -X32_64"

  3196. else

  3197.     arch_default=$(uname -m)

  3198. fi

  3199. cpu="generic"

  3200. intrinsics="none"

  3201. 

  3202. # configurable options

  3203. enable $PROGRAM_LIST

  3204. enable $DOCUMENT_LIST

  3205. enable $EXAMPLE_LIST

  3206. enable $(filter_out avresample $LIBRARY_LIST)

  3207. enable stripping

  3208. 

  3209. enable asm

  3210. enable debug

  3211. enable doc

  3212. enable faan faandct faanidct

  3213. enable optimizations

  3214. enable runtime_cpudetect

  3215. enable safe_bitstream_reader

  3216. enable static

  3217. enable swscale_alpha

  3218. enable valgrind_backtrace

  3219. 

  3220. sws_max_filter_size_default=256

  3221. set_default sws_max_filter_size

  3222. 

  3223. # Enable platform codecs by default.

  3224. enable audiotoolbox

  3225. 

  3226. # Enable hwaccels by default.

  3227. enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc

  3228. enable xlib

  3229. 

  3230. enable nvenc vda_framework videotoolbox videotoolbox_encoder

  3231. 

  3232. # build settings

  3233. SHFLAGS='-shared -Wl,-soname,$$(@F)'

  3234. LIBPREF="lib"

  3235. LIBSUF=".a"

  3236. FULLNAME='$(NAME)$(BUILDSUF)'

  3237. LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

  3238. SLIBPREF="lib"

  3239. SLIBSUF=".so"

  3240. SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

  3241. SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

  3242. SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

  3243. LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

  3244. SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'

  3245. SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  3246. VERSION_SCRIPT_POSTPROCESS_CMD="cat"

  3247. 

  3248. asflags_filter=echo

  3249. cflags_filter=echo

  3250. ldflags_filter=echo

  3251. 

  3252. AS_C='-c'

  3253. AS_O='-o $@'

  3254. CC_C='-c'

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

  3256. CC_O='-o $@'

  3257. CXX_C='-c'

  3258. CXX_O='-o $@'

  3259. OBJCC_C='-c'

  3260. OBJCC_E='-E -o $@'

  3261. OBJCC_O='-o $@'

  3262. LD_O='-o $@'

  3263. LD_LIB='-l%'

  3264. LD_PATH='-L'

  3265. HOSTCC_C='-c'

  3266. HOSTCC_E='-E -o $@'

  3267. HOSTCC_O='-o $@'

  3268. HOSTLD_O='-o $@'

  3269. 

  3270. host_libs='-lm'

  3271. host_cflags_filter=echo

  3272. host_ldflags_filter=echo

  3273. 

  3274. target_path='$(CURDIR)'

  3275. 

  3276. # since the object filename is not given with the -MM flag, the compiler

  3277. # is only able to print the basename, and we must add the path ourselves

  3278. DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'

  3279. DEPFLAGS='-MM'

  3280. 

  3281. # find source path

  3282. if test -f configure; then

  3283.     source_path=.

  3284. else

  3285.     source_path=$(cd $(dirname "$0"); pwd)

  3286.     case "$source_path" in

  3287.         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;

  3288.     esac

  3289.     test -e "$source_path/config.h" &&

  3290.         die "Out of tree builds are impossible with config.h in source dir."

  3291. fi

  3292. 

  3293. for v in "$@"; do

  3294.     r=${v#*=}

  3295.     l=${v%"$r"}

  3296.     r=$(sh_quote "$r")

  3297.     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"

  3298. done

  3299. 

  3300. find_things(){

  3301.     thing=$1

  3302.     pattern=$2

  3303.     file=$source_path/$3

  3304.     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

  3305. }

  3306. 

  3307. ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

  3308. DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

  3309. HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)

  3310. PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

  3311. MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

  3312. DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

  3313. OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)

  3314. INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)

  3315. FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

  3316. 

  3317. find_things_extern(){

  3318.     thing=$1

  3319.     pattern=$2

  3320.     file=$source_path/$3

  3321.     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"

  3322. }

  3323. 

  3324. BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)

  3325. PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)

  3326. 

  3327. ALL_COMPONENTS="

  3328.     $BSF_LIST

  3329.     $DECODER_LIST

  3330.     $DEMUXER_LIST

  3331.     $ENCODER_LIST

  3332.     $FILTER_LIST

  3333.     $HWACCEL_LIST

  3334.     $INDEV_LIST

  3335.     $MUXER_LIST

  3336.     $OUTDEV_LIST

  3337.     $PARSER_LIST

  3338.     $PROTOCOL_LIST

  3339. "

  3340. 

  3341. for n in $COMPONENT_LIST; do

  3342.     v=$(toupper ${n%s})_LIST

  3343.     eval enable \$$v

  3344.     eval ${n}_if_any="\$$v"

  3345. done

  3346. 

  3347. enable $ARCH_EXT_LIST

  3348. 

  3349. die_unknown(){

  3350.     echo "Unknown option \"$1\"."

  3351.     echo "See $0 --help for available options."

  3352.     exit 1

  3353. }

  3354. 

  3355. print_in_columns() {

  3356.     cols=$(expr $ncols / 24)

  3357.     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t

  3358. }

  3359. 

  3360. show_list() {

  3361.     suffix=_$1

  3362.     shift

  3363.     echo $* | sed s/$suffix//g | print_in_columns

  3364.     exit 0

  3365. }

  3366. 

  3367. rand_list(){

  3368.     IFS=', '

  3369.     set -- $*

  3370.     unset IFS

  3371.     for thing; do

  3372.         comp=${thing%:*}

  3373.         prob=${thing#$comp}

  3374.         prob=${prob#:}

  3375.         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST

  3376.         echo "prob ${prob:-0.5}"

  3377.         printf '%s\n' $comp

  3378.     done

  3379. }

  3380. 

  3381. do_random(){

  3382.     action=$1

  3383.     shift

  3384.     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")

  3385.     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")

  3386. }

  3387. 

  3388. for opt do

  3389.     optval="${opt#*=}"

  3390.     case "$opt" in

  3391.         --extra-ldflags=*)

  3392.             add_ldflags $optval

  3393.         ;;

  3394.         --extra-ldexeflags=*)

  3395.             add_ldexeflags $optval

  3396.         ;;

  3397.         --extra-ldlibflags=*)

  3398.             add_ldlibflags $optval

  3399.         ;;

  3400.         --extra-libs=*)

  3401.             add_extralibs $optval

  3402.         ;;

  3403.         --disable-devices)

  3404.             disable $INDEV_LIST $OUTDEV_LIST

  3405.         ;;

  3406.         --enable-debug=*)

  3407.             debuglevel="$optval"

  3408.         ;;

  3409.         --disable-programs)

  3410.             disable $PROGRAM_LIST

  3411.         ;;

  3412.         --disable-everything)

  3413.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3414.         ;;

  3415.         --disable-all)

  3416.             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST

  3417.             disable $LIBRARY_LIST $PROGRAM_LIST doc

  3418.             enable avutil

  3419.         ;;

  3420.         --enable-random|--disable-random)

  3421.             action=${opt%%-random}

  3422.             do_random ${action#--} $COMPONENT_LIST

  3423.         ;;

  3424.         --enable-random=*|--disable-random=*)

  3425.             action=${opt%%-random=*}

  3426.             do_random ${action#--} $optval

  3427.         ;;

  3428.         --enable-*=*|--disable-*=*)

  3429.             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')

  3430.             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"

  3431.             eval list=\$$(toupper $thing)_LIST

  3432.             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}

  3433.             list=$(filter "$name" $list)

  3434.             [ "$list" = "" ] && warn "Option $opt did not match anything"

  3435.             $action $list

  3436.         ;;

  3437.         --enable-?*|--disable-?*)

  3438.             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')

  3439.             if is_in $option $COMPONENT_LIST; then

  3440.                 test $action = disable && action=unset

  3441.                 eval $action \$$(toupper ${option%s})_LIST

  3442.             elif is_in $option $CMDLINE_SELECT; then

  3443.                 $action $option

  3444.             else

  3445.                 die_unknown $opt

  3446.             fi

  3447.         ;;

  3448.         --list-*)

  3449.             NAME="${opt#--list-}"

  3450.             is_in $NAME $COMPONENT_LIST || die_unknown $opt

  3451.             NAME=${NAME%s}

  3452.             eval show_list $NAME \$$(toupper $NAME)_LIST

  3453.         ;;

  3454.         --help|-h) show_help

  3455.         ;;

  3456.         --fatal-warnings) enable fatal_warnings

  3457.         ;;

  3458.         *)

  3459.             optname="${opt%%=*}"

  3460.             optname="${optname#--}"

  3461.             optname=$(echo "$optname" | sed 's/-/_/g')

  3462.             if is_in $optname $CMDLINE_SET; then

  3463.                 eval $optname='$optval'

  3464.             elif is_in $optname $CMDLINE_APPEND; then

  3465.                 append $optname "$optval"

  3466.             else

  3467.                 die_unknown $opt

  3468.             fi

  3469.         ;;

  3470.     esac

  3471. done

  3472. 

  3473. for e in $env; do

  3474.     eval "export $e"

  3475. done

  3476. 

  3477. disabled logging && logfile=/dev/null

  3478. 

  3479. # Disable all the library-specific components if the library itself

  3480. # is disabled, see AVCODEC_LIST and following _LIST variables.

  3481. 

  3482. disable_components(){

  3483.     disabled ${1} && disable $(

  3484.         eval components="\$$(toupper ${1})_COMPONENTS"

  3485.         map 'eval echo \${$(toupper ${v%s})_LIST}' $components

  3486.     )

  3487. }

  3488. 

  3489. map 'disable_components $v' $LIBRARY_LIST

  3490. 

  3491. echo "# $0 $FFMPEG_CONFIGURATION" > $logfile

  3492. set >> $logfile

  3493. 

  3494. test -n "$valgrind" && toolchain="valgrind-memcheck"

  3495. 

  3496. case "$toolchain" in

  3497.     *-asan)

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

  3499.         add_cflags  -fsanitize=address

  3500.         add_ldflags -fsanitize=address

  3501.     ;;

  3502.     *-msan)

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

  3504.         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins

  3505.         add_ldflags -fsanitize=memory

  3506.     ;;

  3507.     *-tsan)

  3508.         cc_default="${toolchain%-tsan}"

  3509.         add_cflags  -fsanitize=thread -pie

  3510.         add_ldflags -fsanitize=thread -pie

  3511.         case "$toolchain" in

  3512.             gcc-tsan)

  3513.                 add_cflags  -fPIC

  3514.                 add_ldflags -fPIC

  3515.                 ;;

  3516.         esac

  3517.     ;;

  3518.     *-usan)

  3519.         cc_default="${toolchain%-usan}"

  3520.         add_cflags  -fsanitize=undefined

  3521.         add_ldflags -fsanitize=undefined

  3522.     ;;

  3523.     valgrind-*)

  3524.         target_exec_default="valgrind"

  3525.         case "$toolchain" in

  3526.             valgrind-massif)

  3527.                 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"

  3528.                 ;;

  3529.             valgrind-memcheck)

  3530.                 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"

  3531.                 ;;

  3532.         esac

  3533.     ;;

  3534.     msvc)

  3535.         # Check whether the current MSVC version needs the C99 converter.

  3536.         # From MSVC 2013 (compiler major version 18) onwards, it does actually

  3537.         # support enough of C99 to build ffmpeg. Default to the new

  3538.         # behaviour if the regexp was unable to match anything, since this

  3539.         # successfully parses the version number of existing supported

  3540.         # versions that require the converter (MSVC 2010 and 2012).

  3541.         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')

  3542.         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then

  3543.             cc_default="cl"

  3544.         else

  3545.             cc_default="c99wrap cl"

  3546.         fi

  3547.         ld_default="$source_path/compat/windows/mslink"

  3548.         nm_default="dumpbin -symbols"

  3549.         ar_default="lib"

  3550.         case "$arch" in

  3551.         arm*)

  3552.             as_default="armasm"

  3553.             ;;

  3554.         esac

  3555.         target_os_default="win32"

  3556.         # Use a relative path for TMPDIR. This makes sure all the

  3557.         # ffconf temp files are written with a relative path, avoiding

  3558.         # issues with msys/win32 path conversion for MSVC parameters

  3559.         # such as -Fo<file> or -out:<file>.

  3560.         TMPDIR=.

  3561.     ;;

  3562.     icl)

  3563.         cc_default="icl"

  3564.         ld_default="xilink"

  3565.         nm_default="dumpbin -symbols"

  3566.         ar_default="xilib"

  3567.         target_os_default="win32"

  3568.         TMPDIR=.

  3569.     ;;

  3570.     gcov)

  3571.         add_cflags  -fprofile-arcs -ftest-coverage

  3572.         add_ldflags -fprofile-arcs -ftest-coverage

  3573.     ;;

  3574.     llvm-cov)

  3575.         add_cflags -fprofile-arcs -ftest-coverage

  3576.         add_ldflags --coverage

  3577.     ;;

  3578.     hardened)

  3579.         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2

  3580.         add_cflags   -fno-strict-overflow -fstack-protector-all

  3581.         add_ldflags  -Wl,-z,relro -Wl,-z,now

  3582.     ;;

  3583.     ?*)

  3584.         die "Unknown toolchain $toolchain"

  3585.     ;;

  3586. esac

  3587. 

  3588. test -n "$cross_prefix" && enable cross_compile

  3589. 

  3590. if enabled cross_compile; then

  3591.     test -n "$arch" && test -n "$target_os" ||

  3592.         die "Must specify target arch and OS when cross-compiling"

  3593. fi

  3594. 

  3595. ar_default="${cross_prefix}${ar_default}"

  3596. cc_default="${cross_prefix}${cc_default}"

  3597. cxx_default="${cross_prefix}${cxx_default}"

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

  3599. pkg_config_default="${cross_prefix}${pkg_config_default}"

  3600. if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then

  3601.     ranlib_default="${cross_prefix}${ranlib_default} -D"

  3602. else

  3603.     ranlib_default="${cross_prefix}${ranlib_default}"

  3604. fi

  3605. strip_default="${cross_prefix}${strip_default}"

  3606. windres_default="${cross_prefix}${windres_default}"

  3607. 

  3608. sysinclude_default="${sysroot}/usr/include"

  3609. 

  3610. set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \

  3611.     target_exec target_os yasmexe

  3612. enabled cross_compile || host_cc_default=$cc

  3613. set_default host_cc

  3614. 

  3615. pkg_config_fail_message=""

  3616. if ! $pkg_config --version >/dev/null 2>&1; then

  3617.     warn "$pkg_config not found, library detection may fail."

  3618.     pkg_config=false

  3619. elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then

  3620.     pkg_config_fail_message="

  3621. Note: When building a static binary, add --pkg-config-flags=\"--static\"."

  3622. fi

  3623. 

  3624. if test $doxygen != $doxygen_default && \

  3625.   ! $doxygen --version >/dev/null 2>&1; then

  3626.     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."

  3627. fi

  3628. 

  3629. exesuf() {

  3630.     case $1 in

  3631.         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;

  3632.     esac

  3633. }

  3634. 

  3635. EXESUF=$(exesuf $target_os)

  3636. HOSTEXESUF=$(exesuf $host_os)

  3637. 

  3638. # set temporary file name

  3639. : ${TMPDIR:=$TEMPDIR}

  3640. : ${TMPDIR:=$TMP}

  3641. : ${TMPDIR:=/tmp}

  3642. 

  3643. if [ -n "$tempprefix" ] ; then

  3644.     mktemp(){

  3645.         echo $tempprefix.${HOSTNAME}.${UID}

  3646.     }

  3647. elif ! check_cmd mktemp -u XXXXXX; then

  3648.     # simple replacement for missing mktemp

  3649.     # NOT SAFE FOR GENERAL USE

  3650.     mktemp(){

  3651.         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"

  3652.     }

  3653. fi

  3654. 

  3655. tmpfile(){

  3656.     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&

  3657.         (set -C; exec > $tmp) 2>/dev/null ||

  3658.         die "Unable to create temporary file in $TMPDIR."

  3659.     append TMPFILES $tmp

  3660.     eval $1=$tmp

  3661. }

  3662. 

  3663. trap 'rm -f -- $TMPFILES' EXIT

  3664. 

  3665. tmpfile TMPASM .asm

  3666. tmpfile TMPC   .c

  3667. tmpfile TMPCPP .cpp

  3668. tmpfile TMPE   $EXESUF

  3669. tmpfile TMPH   .h

  3670. tmpfile TMPM   .m

  3671. tmpfile TMPO   .o

  3672. tmpfile TMPS   .S

  3673. tmpfile TMPSH  .sh

  3674. tmpfile TMPV   .ver

  3675. 

  3676. unset -f mktemp

  3677. 

  3678. chmod +x $TMPE

  3679. 

  3680. # make sure we can execute files in $TMPDIR

  3681. cat > $TMPSH 2>> $logfile <<EOF

  3682. #! /bin/sh

  3683. EOF

  3684. chmod +x $TMPSH >> $logfile 2>&1

  3685. if ! $TMPSH >> $logfile 2>&1; then

  3686.     cat <<EOF

  3687. Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment

  3688. variable to another directory and make sure that it is not mounted noexec.

  3689. EOF

  3690.     die "Sanity test failed."

  3691. fi

  3692. 

  3693. armasm_flags(){

  3694.     for flag; do

  3695.         case $flag in

  3696.             # Filter out MSVC cl.exe options from cflags that shouldn't

  3697.             # be passed to gas-preprocessor

  3698.             -M[TD]*)                                            ;;

  3699.             *)                  echo $flag                      ;;

  3700.         esac

  3701.    done

  3702. }

  3703. 

  3704. ccc_flags(){

  3705.     for flag; do

  3706.         case $flag in

  3707.             -std=c99)           echo -c99                       ;;

  3708.             -mcpu=*)            echo -arch ${flag#*=}           ;;

  3709.             -mieee)             echo -ieee                      ;;

  3710.             -O*|-fast)          echo $flag                      ;;

  3711.             -fno-math-errno)    echo -assume nomath_errno       ;;

  3712.             -g)                 echo -g3                        ;;

  3713.             -Wall)              echo -msg_enable level2         ;;

  3714.             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;

  3715.             -Wl,*)              echo $flag                      ;;

  3716.             -f*|-W*)                                            ;;

  3717.             *)                  echo $flag                      ;;

  3718.         esac

  3719.    done

  3720. }

  3721. 

  3722. cparser_flags(){

  3723.     for flag; do

  3724.         case $flag in

  3725.             -Wno-switch)             echo -Wno-switch-enum ;;

  3726.             -Wno-format-zero-length) ;;

  3727.             -Wdisabled-optimization) ;;

  3728.             -Wno-pointer-sign)       echo -Wno-other ;;

  3729.             *)                       echo $flag ;;

  3730.         esac

  3731.     done

  3732. }

  3733. 

  3734. msvc_common_flags(){

  3735.     for flag; do

  3736.         case $flag in

  3737.             # In addition to specifying certain flags under the compiler

  3738.             # specific filters, they must be specified here as well or else the

  3739.             # generic catch all at the bottom will print the original flag.

  3740.             -Wall)                ;;

  3741.             -std=c99)             ;;

  3742.             # Common flags

  3743.             -fomit-frame-pointer) ;;

  3744.             -g)                   echo -Z7 ;;

  3745.             -fno-math-errno)      ;;

  3746.             -fno-common)          ;;

  3747.             -fno-signed-zeros)    ;;

  3748.             -fPIC)                ;;

  3749.             -mthumb)              ;;

  3750.             -march=*)             ;;

  3751.             -lz)                  echo zlib.lib ;;

  3752.             -lavifil32)           echo vfw32.lib ;;

  3753.             -lavicap32)           echo vfw32.lib user32.lib ;;

  3754.             -lx264)               echo libx264.lib ;;

  3755.             -l*)                  echo ${flag#-l}.lib ;;

  3756.             -LARGEADDRESSAWARE)   echo $flag ;;

  3757.             -L*)                  echo -libpath:${flag#-L} ;;

  3758.             *)                    echo $flag ;;

  3759.         esac

  3760.     done

  3761. }

  3762. 

  3763. msvc_flags(){

  3764.     msvc_common_flags "$@"

  3765.     for flag; do

  3766.         case $flag in

  3767.             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \

  3768.                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \

  3769.                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \

  3770.                                        -wd4307 \

  3771.                                        -wd4273 -wd4554 -wd4701 ;;

  3772.         esac

  3773.     done

  3774. }

  3775. 

  3776. icl_flags(){

  3777.     msvc_common_flags "$@"

  3778.     for flag; do

  3779.         case $flag in

  3780.             # Despite what Intel's documentation says -Wall, which is supported

  3781.             # on Windows, does enable remarks so disable them here.

  3782.             -Wall)                echo $flag -Qdiag-disable:remark ;;

  3783.             -std=c99)             echo -Qstd=c99 ;;

  3784.             -flto)                echo -ipo ;;

  3785.         esac

  3786.     done

  3787. }

  3788. 

  3789. icc_flags(){

  3790.     for flag; do

  3791.         case $flag in

  3792.             -flto)                echo -ipo ;;

  3793.             *)                    echo $flag ;;

  3794.         esac

  3795.     done

  3796. }

  3797. 

  3798. pgi_flags(){

  3799.     for flag; do

  3800.         case $flag in

  3801.             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;

  3802.             -fomit-frame-pointer) echo -Mnoframe ;;

  3803.             -g)                   echo -gopt ;;

  3804.             *)                    echo $flag ;;

  3805.         esac

  3806.     done

  3807. }

  3808. 

  3809. suncc_flags(){

  3810.     for flag; do

  3811.         case $flag in

  3812.             -march=*|-mcpu=*)

  3813.                 case "${flag#*=}" in

  3814.                     native)                   echo -xtarget=native       ;;

  3815.                     v9|niagara)               echo -xarch=sparc          ;;

  3816.                     ultrasparc)               echo -xarch=sparcvis       ;;

  3817.                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;

  3818.                     i586|pentium)             echo -xchip=pentium        ;;

  3819.                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;

  3820.                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;

  3821.                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;

  3822.                     pentium4*)          echo -xtarget=pentium4           ;;

  3823.                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;

  3824.                     *-sse3)             echo -xarch=sse3                 ;;

  3825.                     core2)              echo -xarch=ssse3 -xchip=core2   ;;

  3826.                     bonnell)                   echo -xarch=ssse3         ;;

  3827.                     corei7|nehalem)            echo -xtarget=nehalem     ;;

  3828.                     westmere)                  echo -xtarget=westmere    ;;

  3829.                     silvermont)                echo -xarch=sse4_2        ;;

  3830.                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;

  3831.                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)

  3832.                                                echo -xarch=avx           ;;

  3833.                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;

  3834.                     btver1)                    echo -xarch=amdsse4a      ;;

  3835.                     btver2|bdver*|znver*)      echo -xarch=avx           ;;

  3836.                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;

  3837.                     k8|opteron|athlon64|athlon-fx)

  3838.                                                echo -xarch=sse2a         ;;

  3839.                     athlon*)                   echo -xarch=pentium_proa  ;;

  3840.                 esac

  3841.                 ;;

  3842.             -std=c99)             echo -xc99              ;;

  3843.             -fomit-frame-pointer) echo -xregs=frameptr    ;;

  3844.             -fPIC)                echo -KPIC -xcode=pic32 ;;

  3845.             -W*,*)                echo $flag              ;;

  3846.             -f*-*|-W*|-mimpure-text)                      ;;

  3847.             -shared)              echo -G                 ;;

  3848.             *)                    echo $flag              ;;

  3849.         esac

  3850.     done

  3851. }

  3852. 

  3853. tms470_flags(){

  3854.     for flag; do

  3855.         case $flag in

  3856.             -march=*|-mcpu=*)

  3857.                 case "${flag#*=}" in

  3858.                     armv7-a|cortex-a*)      echo -mv=7a8 ;;

  3859.                     armv7-r|cortex-r*)      echo -mv=7r4 ;;

  3860.                     armv7-m|cortex-m*)      echo -mv=7m3 ;;

  3861.                     armv6*|arm11*)          echo -mv=6   ;;

  3862.                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])

  3863.                                             echo -mv=5e  ;;

  3864.                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;

  3865.                 esac

  3866.                 ;;

  3867.             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;

  3868.             -mfpu=vfp)      echo --float_support=vfpv2        ;;

  3869.             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;

  3870.             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;

  3871.             -msoft-float)   echo --float_support=vfplib       ;;

  3872.             -O[0-3]|-mf=*)  echo $flag                        ;;

  3873.             -g)             echo -g -mn                       ;;

  3874.             -pds=*)         echo $flag                        ;;

  3875.             -D*|-I*)        echo $flag                        ;;

  3876.             --gcc|--abi=*)  echo $flag                        ;;

  3877.             -me)            echo $flag                        ;;

  3878.         esac

  3879.     done

  3880. }

  3881. 

  3882. probe_cc(){

  3883.     pfx=$1

  3884.     _cc=$2

  3885.     first=$3

  3886. 

  3887.     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags

  3888.     unset _ld_o _ldflags _ld_lib _ld_path

  3889.     unset _depflags _DEPCMD _DEPFLAGS

  3890.     _flags_filter=echo

  3891. 

  3892.     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then

  3893.         true # no-op to avoid reading stdin in following checks

  3894.     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

  3895.         _type=llvm_gcc

  3896.         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')

  3897.         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"

  3898.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3899.         _cflags_speed='-O3'

  3900.         _cflags_size='-Os'

  3901.     elif $_cc -v 2>&1 | grep -qi ^gcc; then

  3902.         _type=gcc

  3903.         gcc_version=$($_cc --version | head -n1)

  3904.         gcc_basever=$($_cc -dumpversion)

  3905.         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')

  3906.         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")

  3907.         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")

  3908.         case $gcc_basever in

  3909.             2) ;;

  3910.             2.*) ;;

  3911.             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;

  3912.         esac

  3913.         if [ "$first" = true ]; then

  3914.             case $gcc_basever in

  3915.                 4.2*)

  3916.                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;

  3917.             esac

  3918.         fi

  3919.         _cflags_speed='-O3'

  3920.         _cflags_size='-Os'

  3921.     elif $_cc --version 2>/dev/null | grep -q ^icc; then

  3922.         _type=icc

  3923.         _ident=$($_cc --version | head -n1)

  3924.         _depflags='-MMD'

  3925.         _cflags_speed='-O3'

  3926.         _cflags_size='-Os'

  3927.         _cflags_noopt='-O1'

  3928.         _flags_filter=icc_flags

  3929.     elif $_cc -v 2>&1 | grep -q xlc; then

  3930.         _type=xlc

  3931.         _ident=$($_cc -qversion 2>/dev/null | head -n1)

  3932.         _cflags_speed='-O5'

  3933.         _cflags_size='-O5 -qcompact'

  3934.     elif $_cc -V 2>/dev/null | grep -q Compaq; then

  3935.         _type=ccc

  3936.         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)

  3937.         _DEPFLAGS='-M'

  3938.         _cflags_speed='-fast'

  3939.         _cflags_size='-O1'

  3940.         _flags_filter=ccc_flags

  3941.     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then

  3942.         test -d "$sysroot" || die "No valid sysroot specified."

  3943.         _type=armcc

  3944.         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')

  3945.         armcc_conf="$PWD/armcc.conf"

  3946.         $_cc --arm_linux_configure                 \

  3947.              --arm_linux_config_file="$armcc_conf" \

  3948.              --configure_sysroot="$sysroot"        \

  3949.              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||

  3950.              die "Error creating armcc configuration file."

  3951.         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc

  3952.         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"

  3953.         as_default="${cross_prefix}gcc"

  3954.         _depflags='-MMD'

  3955.         _cflags_speed='-O3'

  3956.         _cflags_size='-Os'

  3957.     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then

  3958.         _type=tms470

  3959.         _ident=$($_cc -version | head -n1 | tr -s ' ')

  3960.         _flags='--gcc --abi=eabi -me'

  3961.         _cc_e='-ppl -fe=$@'

  3962.         _cc_o='-fe=$@'

  3963.         _depflags='-ppa -ppd=$(@:.o=.d)'

  3964.         _cflags_speed='-O3 -mf=5'

  3965.         _cflags_size='-O3 -mf=2'

  3966.         _flags_filter=tms470_flags

  3967.     elif $_cc -v 2>&1 | grep -q clang; then

  3968.         _type=clang

  3969.         _ident=$($_cc --version 2>/dev/null | head -n1)

  3970.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3971.         _cflags_speed='-O3'

  3972.         _cflags_size='-Os'

  3973.     elif $_cc -V 2>&1 | grep -q Sun; then

  3974.         _type=suncc

  3975.         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)

  3976.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'

  3977.         _DEPFLAGS='-xM1 -xc99'

  3978.         _ldflags='-std=c99'

  3979.         _cflags_speed='-O5'

  3980.         _cflags_size='-O5 -xspace'

  3981.         _flags_filter=suncc_flags

  3982.     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then

  3983.         _type=pathscale

  3984.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3985.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3986.         _cflags_speed='-O2'

  3987.         _cflags_size='-Os'

  3988.         _flags_filter='filter_out -Wdisabled-optimization'

  3989.     elif $_cc -v 2>&1 | grep -q Open64; then

  3990.         _type=open64

  3991.         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)

  3992.         _depflags='-MMD -MF $(@:.o=.d) -MT $@'

  3993.         _cflags_speed='-O2'

  3994.         _cflags_size='-Os'

  3995.         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'

  3996.     elif $_cc -V 2>&1 | grep -q Portland; then

  3997.         _type=pgi

  3998.         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"

  3999.         opt_common='-alias=ansi -Mdse -Mlre -Mpre'

  4000.         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"

  4001.         _cflags_size="-O2 -Munroll=c:1 $opt_common"

  4002.         _cflags_noopt="-O"

  4003.         _flags_filter=pgi_flags

  4004.     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then

  4005.         _type=armasm

  4006.         _ident=$($_cc | head -n1)

  4007.         # 4509: "This form of conditional instruction is deprecated"

  4008.         _flags="-nologo -ignore 4509"

  4009.         _flags_filter=armasm_flags

  4010.     elif $_cc 2>&1 | grep -q Intel; then

  4011.         _type=icl

  4012.         _ident=$($_cc 2>&1 | head -n1)

  4013.         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'

  4014.         # Not only is O3 broken on 13.x+ but it is slower on all previous

  4015.         # versions (tested) as well.

  4016.         _cflags_speed="-O2"

  4017.         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff

  4018.         if $_cc 2>&1 | grep -q Linker; then

  4019.             _ld_o='-out:$@'

  4020.         else

  4021.             _ld_o='-Fe$@'

  4022.         fi

  4023.         _cc_o='-Fo$@'

  4024.         _cc_e='-P'

  4025.         _flags_filter=icl_flags

  4026.         _ld_lib='lib%.a'

  4027.         _ld_path='-libpath:'

  4028.         # -Qdiag-error to make icl error when seeing certain unknown arguments

  4029.         _flags='-nologo -Qdiag-error:4044,10157'

  4030.         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency

  4031.         # with MSVC which enables it by default.

  4032.         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'

  4033.         disable stripping

  4034.     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then

  4035.         _type=msvc

  4036.         _ident=$($_cc 2>&1 | head -n1)

  4037.         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'

  4038.         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'

  4039.         _cflags_speed="-O2"

  4040.         _cflags_size="-O1"

  4041.         if $_cc -nologo- 2>&1 | grep -q Linker; then

  4042.             _ld_o='-out:$@'

  4043.         else

  4044.             _ld_o='-Fe$@'

  4045.         fi

  4046.         _cc_o='-Fo$@'

  4047.         _cc_e='-P -Fi$@'

  4048.         _flags_filter=msvc_flags

  4049.         _ld_lib='lib%.a'

  4050.         _ld_path='-libpath:'

  4051.         _flags='-nologo'

  4052.         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'

  4053.         disable stripping

  4054.     elif $_cc --version 2>/dev/null | grep -q ^cparser; then

  4055.         _type=cparser

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

  4057.         _depflags='-MMD'

  4058.         _cflags_speed='-O4'

  4059.         _cflags_size='-O2'

  4060.         _flags_filter=cparser_flags

  4061.     fi

  4062. 

  4063.     eval ${pfx}_type=\$_type

  4064.     eval ${pfx}_ident=\$_ident

  4065. }

  4066. 

  4067. set_ccvars(){

  4068.     eval ${1}_C=\${_cc_c-\${${1}_C}}

  4069.     eval ${1}_E=\${_cc_e-\${${1}_E}}

  4070.     eval ${1}_O=\${_cc_o-\${${1}_O}}

  4071. 

  4072.     if [ -n "$_depflags" ]; then

  4073.         eval ${1}_DEPFLAGS=\$_depflags

  4074.     else

  4075.         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}

  4076.         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}

  4077.         eval DEP${1}FLAGS=\$_flags

  4078.     fi

  4079. }

  4080. 

  4081. probe_cc cc "$cc" "true"

  4082. cflags_filter=$_flags_filter

  4083. cflags_speed=$_cflags_speed

  4084. cflags_size=$_cflags_size

  4085. cflags_noopt=$_cflags_noopt

  4086. add_cflags $_flags $_cflags

  4087. cc_ldflags=$_ldflags

  4088. set_ccvars CC

  4089. 

  4090. probe_cc hostcc "$host_cc"

  4091. host_cflags_filter=$_flags_filter

  4092. add_host_cflags  $_flags $_cflags

  4093. set_ccvars HOSTCC

  4094. 

  4095. test -n "$cc_type" && enable $cc_type ||

  4096.     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"

  4097. 

  4098. : ${as_default:=$cc}

  4099. : ${objcc_default:=$cc}

  4100. : ${dep_cc_default:=$cc}

  4101. : ${ld_default:=$cc}

  4102. : ${host_ld_default:=$host_cc}

  4103. set_default ar as objcc dep_cc ld ln_s host_ld windres

  4104. 

  4105. probe_cc as "$as"

  4106. asflags_filter=$_flags_filter

  4107. add_asflags $_flags $_cflags

  4108. set_ccvars AS

  4109. 

  4110. probe_cc objcc "$objcc"

  4111. objcflags_filter=$_flags_filter

  4112. add_objcflags $_flags $_cflags

  4113. set_ccvars OBJC

  4114. 

  4115. probe_cc ld "$ld"

  4116. ldflags_filter=$_flags_filter

  4117. add_ldflags $_flags $_ldflags

  4118. test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags

  4119. LD_O=${_ld_o-$LD_O}

  4120. LD_LIB=${_ld_lib-$LD_LIB}

  4121. LD_PATH=${_ld_path-$LD_PATH}

  4122. 

  4123. probe_cc hostld "$host_ld"

  4124. host_ldflags_filter=$_flags_filter

  4125. add_host_ldflags $_flags $_ldflags

  4126. HOSTLD_O=${_ld_o-$HOSTLD_O}

  4127. 

  4128. if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then

  4129.     probe_cc depcc "$dep_cc"

  4130.     CCDEP=${_DEPCMD:-$DEPCMD}

  4131.     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}

  4132.     DEPCCFLAGS=$_flags

  4133. fi

  4134. 

  4135. if $ar 2>&1 | grep -q Microsoft; then

  4136.     arflags="-nologo"

  4137.     ar_o='-out:$@'

  4138. elif $ar 2>&1 | grep -q 'Texas Instruments'; then

  4139.     arflags="rq"

  4140.     ar_o='$@'

  4141. elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then

  4142.     arflags='-Xany -r -c'

  4143.     ar_o='$@'

  4144. elif $ar 2>&1 | grep -q "\[D\] "; then

  4145.     arflags="rcD"

  4146.     ar_o='$@'

  4147. else

  4148.     arflags="rc"

  4149.     ar_o='$@'

  4150. fi

  4151. 

  4152. add_cflags $extra_cflags

  4153. add_cxxflags $extra_cxxflags

  4154. add_objcflags $extra_objcflags

  4155. add_asflags $extra_cflags

  4156. 

  4157. if test -n "$sysroot"; then

  4158.     case "$cc_type" in

  4159.         gcc|llvm_gcc|clang)

  4160.             add_cppflags --sysroot="$sysroot"

  4161.             add_ldflags --sysroot="$sysroot"

  4162. # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking

  4163.             add_cppflags -isysroot "$sysroot"

  4164.             add_ldflags -isysroot "$sysroot"

  4165.         ;;

  4166.         tms470)

  4167.             add_cppflags -I"$sysinclude"

  4168.             add_ldflags  --sysroot="$sysroot"

  4169.         ;;

  4170.     esac

  4171. fi

  4172. 

  4173. if test "$cpu" = host; then

  4174.     enabled cross_compile &&

  4175.         die "--cpu=host makes no sense when cross-compiling."

  4176. 

  4177.     case "$cc_type" in

  4178.         gcc|llvm_gcc)

  4179.             check_native(){

  4180.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4181.                 sed -n "/cc1.*$1=/{

  4182.                             s/.*$1=\\([^ ]*\\).*/\\1/

  4183.                             p

  4184.                             q

  4185.                         }" $TMPE

  4186.             }

  4187.             cpu=$(check_native -march || check_native -mcpu)

  4188.         ;;

  4189.         clang)

  4190.             check_native(){

  4191.                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

  4192.                 sed -n "/cc1.*-target-cpu /{

  4193.                             s/.*-target-cpu \\([^ ]*\\).*/\\1/

  4194.                             p

  4195.                             q

  4196.                         }" $TMPE

  4197.             }

  4198.             cpu=$(check_native -march)

  4199.         ;;

  4200.     esac

  4201. 

  4202.     test "${cpu:-host}" = host &&

  4203.         die "--cpu=host not supported with compiler $cc"

  4204. fi

  4205. 

  4206. # Deal with common $arch aliases

  4207. case "$arch" in

  4208.     aarch64|arm64)

  4209.         arch="aarch64"

  4210.     ;;

  4211.     arm*|iPad*|iPhone*)

  4212.         arch="arm"

  4213.     ;;

  4214.     mips*|IP*)

  4215.         case "$arch" in

  4216.         *el)

  4217.             add_cppflags -EL

  4218.             add_ldflags -EL

  4219.         ;;

  4220.         *eb)

  4221.             add_cppflags -EB

  4222.             add_ldflags -EB

  4223.         ;;

  4224.         esac

  4225.         arch="mips"

  4226.     ;;

  4227.     parisc*|hppa*)

  4228.         arch="parisc"

  4229.     ;;

  4230.     "Power Macintosh"|ppc*|powerpc*)

  4231.         arch="ppc"

  4232.     ;;

  4233.     s390|s390x)

  4234.         arch="s390"

  4235.     ;;

  4236.     sh4|sh)

  4237.         arch="sh4"

  4238.     ;;

  4239.     sun4*|sparc*)

  4240.         arch="sparc"

  4241.     ;;

  4242.     tilegx|tile-gx)

  4243.         arch="tilegx"

  4244.     ;;

  4245.     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)

  4246.         arch="x86"

  4247.     ;;

  4248. esac

  4249. 

  4250. is_in $arch $ARCH_LIST || warn "unknown architecture $arch"

  4251. enable $arch

  4252. 

  4253. # Add processor-specific flags

  4254. if enabled aarch64; then

  4255. 

  4256.     case $cpu in

  4257.         armv*)

  4258.             cpuflags="-march=$cpu"

  4259.         ;;

  4260.         *)

  4261.             cpuflags="-mcpu=$cpu"

  4262.         ;;

  4263.     esac

  4264. 

  4265. elif enabled alpha; then

  4266. 

  4267.     cpuflags="-mcpu=$cpu"

  4268. 

  4269. elif enabled arm; then

  4270. 

  4271.     check_arm_arch() {

  4272.         check_cpp_condition stddef.h \

  4273.             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \

  4274.             $cpuflags

  4275.     }

  4276. 

  4277.     probe_arm_arch() {

  4278.         if   check_arm_arch 4;        then echo armv4

  4279.         elif check_arm_arch 4T;       then echo armv4t

  4280.         elif check_arm_arch 5;        then echo armv5

  4281.         elif check_arm_arch 5E;       then echo armv5e

  4282.         elif check_arm_arch 5T;       then echo armv5t

  4283.         elif check_arm_arch 5TE;      then echo armv5te

  4284.         elif check_arm_arch 5TEJ;     then echo armv5te

  4285.         elif check_arm_arch 6;        then echo armv6

  4286.         elif check_arm_arch 6J;       then echo armv6j

  4287.         elif check_arm_arch 6K;       then echo armv6k

  4288.         elif check_arm_arch 6Z;       then echo armv6z

  4289.         elif check_arm_arch 6ZK;      then echo armv6zk

  4290.         elif check_arm_arch 6T2;      then echo armv6t2

  4291.         elif check_arm_arch 7;        then echo armv7

  4292.         elif check_arm_arch 7A  7_A;  then echo armv7-a

  4293.         elif check_arm_arch 7S;       then echo armv7-a

  4294.         elif check_arm_arch 7R  7_R;  then echo armv7-r

  4295.         elif check_arm_arch 7M  7_M;  then echo armv7-m

  4296.         elif check_arm_arch 7EM 7E_M; then echo armv7-m

  4297.         elif check_arm_arch 8A  8_A;  then echo armv8-a

  4298.         fi

  4299.     }

  4300. 

  4301.     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)

  4302. 

  4303.     case $cpu in

  4304.         armv*)

  4305.             cpuflags="-march=$cpu"

  4306.             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')

  4307.         ;;

  4308.         *)

  4309.             cpuflags="-mcpu=$cpu"

  4310.             case $cpu in

  4311.                 cortex-a*)                               subarch=armv7a  ;;

  4312.                 cortex-r*)                               subarch=armv7r  ;;

  4313.                 cortex-m*)                 enable thumb; subarch=armv7m  ;;

  4314.                 arm11*)                                  subarch=armv6   ;;

  4315.                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;

  4316.                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;

  4317.                 *)                             subarch=$(probe_arm_arch) ;;

  4318.             esac

  4319.         ;;

  4320.     esac

  4321. 

  4322.     case "$subarch" in

  4323.         armv5t*)    enable fast_clz                ;;

  4324.         armv[6-8]*)

  4325.             enable fast_clz

  4326.             disabled fast_unaligned || enable fast_unaligned

  4327.             ;;

  4328.     esac

  4329. 

  4330. elif enabled avr32; then

  4331. 

  4332.     case $cpu in

  4333.         ap7[02]0[0-2])

  4334.             subarch="avr32_ap"

  4335.             cpuflags="-mpart=$cpu"

  4336.         ;;

  4337.         ap)

  4338.             subarch="avr32_ap"

  4339.             cpuflags="-march=$cpu"

  4340.         ;;

  4341.         uc3[ab]*)

  4342.             subarch="avr32_uc"

  4343.             cpuflags="-mcpu=$cpu"

  4344.         ;;

  4345.         uc)

  4346.             subarch="avr32_uc"

  4347.             cpuflags="-march=$cpu"

  4348.         ;;

  4349.     esac

  4350. 

  4351. elif enabled bfin; then

  4352. 

  4353.     cpuflags="-mcpu=$cpu"

  4354. 

  4355. elif enabled mips; then

  4356. 

  4357.     cpuflags="-march=$cpu"

  4358. 

  4359.     if [ "$cpu" != "generic" ]; then

  4360.         disable mips32r2

  4361.         disable mips32r5

  4362.         disable mips64r2

  4363.         disable mips32r6

  4364.         disable mips64r6

  4365.         disable loongson2

  4366.         disable loongson3

  4367. 

  4368.         case $cpu in

  4369.             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)

  4370.                 enable mips32r2

  4371.                 disable msa

  4372.             ;;

  4373.             p5600|i6400|p6600)

  4374.                 disable mipsdsp

  4375.                 disable mipsdspr2

  4376.             ;;

  4377.             loongson*)

  4378.                 enable loongson2

  4379.                 enable loongson3

  4380.                 enable local_aligned_8 local_aligned_16 local_aligned_32

  4381.                 enable simd_align_16

  4382.                 enable fast_64bit

  4383.                 enable fast_clz

  4384.                 enable fast_cmov

  4385.                 enable fast_unaligned

  4386.                 disable aligned_stack

  4387.                 case $cpu in

  4388.                     loongson3*)

  4389.                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"

  4390.                     ;;

  4391.                     loongson2e)

  4392.                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"

  4393.                     ;;

  4394.                     loongson2f)

  4395.                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"

  4396.                     ;;

  4397.                 esac

  4398.             ;;

  4399.             *)

  4400.                 # Unknown CPU. Disable everything.

  4401.                 warn "unknown CPU. Disabling all MIPS optimizations."

  4402.                 disable mipsfpu

  4403.                 disable mipsdsp

  4404.                 disable mipsdspr2

  4405.                 disable msa

  4406.                 disable mmi

  4407.             ;;

  4408.         esac

  4409. 

  4410.         case $cpu in

  4411.             24kc)

  4412.                 disable mipsfpu

  4413.                 disable mipsdsp

  4414.                 disable mipsdspr2

  4415.             ;;

  4416.             24kf*)

  4417.                 disable mipsdsp

  4418.                 disable mipsdspr2

  4419.             ;;

  4420.             24kec|34kc|1004kc)

  4421.                 disable mipsfpu

  4422.                 disable mipsdspr2

  4423.             ;;

  4424.             24kef*|34kf*|1004kf*)

  4425.                 disable mipsdspr2

  4426.             ;;

  4427.             74kc)

  4428.                 disable mipsfpu

  4429.             ;;

  4430.             p5600)

  4431.                 enable mips32r5

  4432.                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"

  4433.             ;;

  4434.             i6400)

  4435.                 enable mips64r6

  4436.                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4437.             ;;

  4438.             p6600)

  4439.                 enable mips64r6

  4440.                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"

  4441.             ;;

  4442.         esac

  4443.     else

  4444.         # We do not disable anything. Is up to the user to disable the unwanted features.

  4445.         warn 'generic cpu selected'

  4446.     fi

  4447. 

  4448. elif enabled ppc; then

  4449. 

  4450.     disable ldbrx

  4451. 

  4452.     case $(tolower $cpu) in

  4453.         601|ppc601|powerpc601)

  4454.             cpuflags="-mcpu=601"

  4455.             disable altivec

  4456.         ;;

  4457.         603*|ppc603*|powerpc603*)

  4458.             cpuflags="-mcpu=603"

  4459.             disable altivec

  4460.         ;;

  4461.         604*|ppc604*|powerpc604*)

  4462.             cpuflags="-mcpu=604"

  4463.             disable altivec

  4464.         ;;

  4465.         g3|75*|ppc75*|powerpc75*)

  4466.             cpuflags="-mcpu=750"

  4467.             disable altivec

  4468.         ;;

  4469.         g4|745*|ppc745*|powerpc745*)

  4470.             cpuflags="-mcpu=7450"

  4471.             disable vsx

  4472.         ;;

  4473.         74*|ppc74*|powerpc74*)

  4474.             cpuflags="-mcpu=7400"

  4475.             disable vsx

  4476.         ;;

  4477.         g5|970|ppc970|powerpc970)

  4478.             cpuflags="-mcpu=970"

  4479.             disable vsx

  4480.         ;;

  4481.         power[3-6]*)

  4482.             cpuflags="-mcpu=$cpu"

  4483.             disable vsx

  4484.         ;;

  4485.         power[7-8]*)

  4486.             cpuflags="-mcpu=$cpu"

  4487.         ;;

  4488.         cell)

  4489.             cpuflags="-mcpu=cell"

  4490.             enable ldbrx

  4491.             disable vsx

  4492.         ;;

  4493.         e500mc)

  4494.             cpuflags="-mcpu=e500mc"

  4495.             disable altivec

  4496.         ;;

  4497.         e500v2)

  4498.             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"

  4499.             disable altivec

  4500.             disable dcbzl

  4501.         ;;

  4502.         e500)

  4503.             cpuflags="-mcpu=8540 -mhard-float"

  4504.             disable altivec

  4505.             disable dcbzl

  4506.         ;;

  4507.     esac

  4508. 

  4509. elif enabled sparc; then

  4510. 

  4511.     case $cpu in

  4512.         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])

  4513.             cpuflags="-mcpu=$cpu"

  4514.         ;;

  4515.         ultrasparc*|niagara[234])

  4516.             cpuflags="-mcpu=$cpu"

  4517.         ;;

  4518.     esac

  4519. 

  4520. elif enabled x86; then

  4521. 

  4522.     case $cpu in

  4523.         i[345]86|pentium)

  4524.             cpuflags="-march=$cpu"

  4525.             disable i686

  4526.             disable mmx

  4527.         ;;

  4528.         # targets that do NOT support nopl and conditional mov (cmov)

  4529.         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

  4530.             cpuflags="-march=$cpu"

  4531.             disable i686

  4532.         ;;

  4533.         # targets that do support nopl and conditional mov (cmov)

  4534.         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\

  4535.         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\

  4536.         |amdfam10|barcelona|b[dt]ver*|znver*)

  4537.             cpuflags="-march=$cpu"

  4538.             enable i686

  4539.             enable fast_cmov

  4540.         ;;

  4541.         # targets that do support conditional mov but on which it's slow

  4542.         pentium4|pentium4m|prescott|nocona)

  4543.             cpuflags="-march=$cpu"

  4544.             enable i686

  4545.             disable fast_cmov

  4546.         ;;

  4547.     esac

  4548. 

  4549. fi

  4550. 

  4551. if [ "$cpu" != generic ]; then

  4552.     add_cflags  $cpuflags

  4553.     add_asflags $cpuflags

  4554.     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags

  4555. fi

  4556. 

  4557. # compiler sanity check

  4558. check_exec <<EOF

  4559. int main(void){ return 0; }

  4560. EOF

  4561. if test "$?" != 0; then

  4562.     echo "$cc is unable to create an executable file."

  4563.     if test -z "$cross_prefix" && ! enabled cross_compile ; then

  4564.         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

  4565.         echo "Only do this if you know what cross compiling means."

  4566.     fi

  4567.     die "C compiler test failed."

  4568. fi

  4569. 

  4570. add_cppflags -D_ISOC99_SOURCE

  4571. add_cxxflags -D__STDC_CONSTANT_MACROS

  4572. add_cxxflags -std=c++98

  4573. check_cflags -std=c99

  4574. check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64

  4575. #include <stdlib.h>

  4576. EOF

  4577. check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE

  4578. #include <stdlib.h>

  4579. EOF

  4580. 

  4581. add_host_cppflags -D_ISOC99_SOURCE

  4582. check_host_cflags -std=c99

  4583. check_host_cflags -Wall

  4584. check_host_cflags -O3

  4585. 

  4586. check_64bit(){

  4587.     arch32=$1

  4588.     arch64=$2

  4589.     expr=$3

  4590.     check_code cc "" "int test[2*($expr) - 1]" &&

  4591.         subarch=$arch64 || subarch=$arch32

  4592. }

  4593. 

  4594. case "$arch" in

  4595.     aarch64|alpha|ia64)

  4596.         spic=$shared

  4597.     ;;

  4598.     mips)

  4599.         check_64bit mips mips64 '_MIPS_SIM > 1'

  4600.         spic=$shared

  4601.     ;;

  4602.     parisc)

  4603.         check_64bit parisc parisc64 'sizeof(void *) > 4'

  4604.         spic=$shared

  4605.     ;;

  4606.     ppc)

  4607.         check_64bit ppc ppc64 'sizeof(void *) > 4'

  4608.         spic=$shared

  4609.     ;;

  4610.     s390)

  4611.         check_64bit s390 s390x 'sizeof(void *) > 4'

  4612.         spic=$shared

  4613.     ;;

  4614.     sparc)

  4615.         check_64bit sparc sparc64 'sizeof(void *) > 4'

  4616.         spic=$shared

  4617.     ;;

  4618.     x86)

  4619.         check_64bit x86_32 x86_64 'sizeof(void *) > 4'

  4620.         # Treat x32 as x64 for now. Note it also needs spic=$shared

  4621.         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&

  4622.             subarch=x86_64

  4623.         if test "$subarch" = "x86_64"; then

  4624.             spic=$shared

  4625.         fi

  4626.     ;;

  4627.     ppc)

  4628.         check_cc <<EOF && subarch="ppc64"

  4629.         int test[(int)sizeof(char*) - 7];

  4630. EOF

  4631.     ;;

  4632. esac

  4633. 

  4634. enable $subarch

  4635. enabled spic && enable_weak pic

  4636. 

  4637. # OS specific

  4638. case $target_os in

  4639.     aix)

  4640.         SHFLAGS=-shared

  4641.         add_cppflags '-I\$(SRC_PATH)/compat/aix'

  4642.         enabled shared && add_ldflags -Wl,-brtl

  4643.         ;;

  4644.     android)

  4645.         disable symver

  4646.         enable section_data_rel_ro

  4647.         SLIB_INSTALL_NAME='$(SLIBNAME)'

  4648.         SLIB_INSTALL_LINKS=

  4649.         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'

  4650.         ;;

  4651.     haiku)

  4652.         prefix_default="/boot/common"

  4653.         network_extralibs="-lnetwork"

  4654.         host_libs=

  4655.         ;;

  4656.     sunos)

  4657.         SHFLAGS='-shared -Wl,-h,$$(@F)'

  4658.         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"

  4659.         network_extralibs="-lsocket -lnsl"

  4660.         add_cppflags -D__EXTENSIONS__

  4661.         # When using suncc to build, the Solaris linker will mark

  4662.         # an executable with each instruction set encountered by

  4663.         # the Solaris assembler.  As our libraries contain their own

  4664.         # guards for processor-specific code, instead suppress

  4665.         # generation of the HWCAPS ELF section on Solaris x86 only.

  4666.         enabled_all suncc x86 &&

  4667.             echo "hwcap_1 = OVERRIDE;" > mapfile &&

  4668.             add_ldflags -Wl,-M,mapfile

  4669.         nm_default='nm -P -g'

  4670.         version_script='-M'

  4671.         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'

  4672.         ;;

  4673.     netbsd)

  4674.         disable symver

  4675.         oss_indev_extralibs="-lossaudio"

  4676.         oss_outdev_extralibs="-lossaudio"

  4677.         enabled gcc || check_ldflags -Wl,-zmuldefs

  4678.         ;;

  4679.     openbsd|bitrig)

  4680.         disable symver

  4681.         SHFLAGS='-shared'

  4682.         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'

  4683.         SLIB_INSTALL_LINKS=

  4684.         oss_indev_extralibs="-lossaudio"

  4685.         oss_outdev_extralibs="-lossaudio"

  4686.         ;;

  4687.     dragonfly)

  4688.         disable symver

  4689.         ;;

  4690.     freebsd)

  4691.         ;;

  4692.     bsd/os)

  4693.         add_extralibs -lpoll -lgnugetopt

  4694.         strip="strip -d"

  4695.         ;;

  4696.     darwin)

  4697.         enabled ppc && add_asflags -force_cpusubtype_ALL

  4698.         install_name_dir_default='$(SHLIBDIR)'

  4699.         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'

  4700.         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress

  4701.         strip="${strip} -x"

  4702.         add_ldflags -Wl,-dynamic,-search_paths_first

  4703.         SLIBSUF=".dylib"

  4704.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

  4705.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

  4706.         objformat="macho"

  4707.         enabled x86_64 && objformat="macho64"

  4708.         enabled_any pic shared x86_64 ||

  4709.             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }

  4710.         check_header dispatch/dispatch.h &&

  4711.             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'

  4712.         ;;

  4713.     msys*)

  4714.         die "Native MSYS builds are discouraged, please use the MINGW environment."

  4715.         ;;

  4716.     mingw32*|mingw64*)

  4717.         if test $target_os = "mingw32ce"; then

  4718.             disable network

  4719.         else

  4720.             target_os=mingw32

  4721.         fi

  4722.         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"

  4723.         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"

  4724.         LIBTARGET=i386

  4725.         if enabled x86_64; then

  4726.             LIBTARGET="i386:x86-64"

  4727.         elif enabled arm; then

  4728.             LIBTARGET=arm-wince

  4729.         fi

  4730.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4731.         enabled x86_32 && check_ldflags -Wl,--large-address-aware

  4732.         shlibdir_default="$bindir_default"

  4733.         SLIBPREF=""

  4734.         SLIBSUF=".dll"

  4735.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4736.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4737.         dlltool="${cross_prefix}dlltool"

  4738.         if check_cmd lib.exe -list; then

  4739.             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4740.             if enabled x86_64; then

  4741.                 LIBTARGET=x64

  4742.             fi

  4743.         elif check_cmd $dlltool --version; then

  4744.             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)'

  4745.         fi

  4746.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4747.         SLIB_INSTALL_LINKS=

  4748.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4749.         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4750.         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'

  4751.         objformat="win32"

  4752.         ranlib=:

  4753.         enable dos_paths

  4754.         check_ldflags -Wl,--nxcompat,--dynamicbase

  4755.         # Lets work around some stupidity in binutils.

  4756.         # ld will strip relocations from executables even though we need them

  4757.         # for dynamicbase (ASLR).  Using -pie does retain the reloc section

  4758.         # however ld then forgets what the entry point should be (oops) so we

  4759.         # have to manually (re)set it.

  4760.         if enabled x86_32; then

  4761.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup

  4762.         elif enabled x86_64; then

  4763.             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup

  4764.             check_ldflags -Wl,--high-entropy-va # binutils 2.25

  4765.             # Set image base >4GB for extra entropy with HEASLR

  4766.             add_ldexeflags -Wl,--image-base,0x140000000

  4767.             append SHFLAGS -Wl,--image-base,0x180000000

  4768.         fi

  4769.         ;;

  4770.     win32|win64)

  4771.         disable symver

  4772.         if enabled shared; then

  4773.             # Link to the import library instead of the normal static library

  4774.             # for shared libs.

  4775.             LD_LIB='%.lib'

  4776.             # Cannot build both shared and static libs with MSVC or icl.

  4777.             disable static

  4778.         fi

  4779.         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE

  4780.         shlibdir_default="$bindir_default"

  4781.         SLIBPREF=""

  4782.         SLIBSUF=".dll"

  4783.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4784.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4785.         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'

  4786.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4787.         SLIB_INSTALL_LINKS=

  4788.         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'

  4789.         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'

  4790.         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'

  4791.         objformat="win32"

  4792.         ranlib=:

  4793.         enable dos_paths

  4794.         ;;

  4795.     cygwin*)

  4796.         target_os=cygwin

  4797.         shlibdir_default="$bindir_default"

  4798.         SLIBPREF="cyg"

  4799.         SLIBSUF=".dll"

  4800.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4801.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

  4802.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4803.         SLIB_INSTALL_LINKS=

  4804.         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'

  4805.         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'

  4806.         objformat="win32"

  4807.         enable dos_paths

  4808.         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres

  4809.         ;;

  4810.     *-dos|freedos|opendos)

  4811.         network_extralibs="-lsocket"

  4812.         objformat="coff"

  4813.         enable dos_paths

  4814.         add_cppflags -U__STRICT_ANSI__

  4815.         ;;

  4816.     linux)

  4817.         enable dv1394

  4818.         enable section_data_rel_ro

  4819.         ;;

  4820.     irix*)

  4821.         target_os=irix

  4822.         ranlib="echo ignoring ranlib"

  4823.         ;;

  4824.     os/2*)

  4825.         strip="lxlite -CS"

  4826.         objformat="aout"

  4827.         add_cppflags -D_GNU_SOURCE

  4828.         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap

  4829.         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

  4830.         LIBSUF="_s.a"

  4831.         SLIBPREF=""

  4832.         SLIBSUF=".dll"

  4833.         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

  4834.         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

  4835.         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \

  4836.             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \

  4837.             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \

  4838.             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \

  4839.             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'

  4840.         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \

  4841.             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'

  4842.         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'

  4843.         SLIB_INSTALL_LINKS=

  4844.         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'

  4845.         enable dos_paths

  4846.         enable_weak os2threads

  4847.         ;;

  4848.     gnu/kfreebsd)

  4849.         add_cppflags -D_BSD_SOURCE

  4850.         ;;

  4851.     gnu)

  4852.         ;;

  4853.     qnx)

  4854.         add_cppflags -D_QNX_SOURCE

  4855.         network_extralibs="-lsocket"

  4856.         ;;

  4857.     symbian)

  4858.         SLIBSUF=".dll"

  4859.         enable dos_paths

  4860.         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default

  4861.         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS

  4862.         add_ldflags -Wl,--target1-abs,--no-undefined \

  4863.                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \

  4864.                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup

  4865.         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \

  4866.                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \

  4867.                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib

  4868.         ;;

  4869.     osf1)

  4870.         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT

  4871.         ;;

  4872.     minix)

  4873.         ;;

  4874.     plan9)

  4875.         add_cppflags -D_C99_SNPRINTF_EXTENSION  \

  4876.                      -D_REENTRANT_SOURCE        \

  4877.                      -D_RESEARCH_SOURCE         \

  4878.                      -DFD_SETSIZE=96            \

  4879.                      -DHAVE_SOCK_OPTS

  4880.         add_compat strtod.o strtod=avpriv_strtod

  4881.         network_extralibs='-lbsd'

  4882.         exeobjs=compat/plan9/main.o

  4883.         disable ffserver

  4884.         cp_f='cp'

  4885.         ;;

  4886.     none)

  4887.         ;;

  4888.     *)

  4889.         die "Unknown OS '$target_os'."

  4890.         ;;

  4891. esac

  4892. 

  4893. # test if creating links works

  4894. link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)

  4895. link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)

  4896. mkdir "$link_dest"

  4897. $ln_s "$link_dest" "$link_name"

  4898. touch "$link_dest/test_file"

  4899. if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then

  4900.     # create link to source path

  4901.     [ -e src ] && rm src

  4902.     $ln_s "$source_path" src

  4903.     source_link=src

  4904. else

  4905.     # creating directory links doesn't work

  4906.     # fall back to using the full source path

  4907.     source_link="$source_path"

  4908. fi

  4909. # cleanup

  4910. rm -r "$link_dest"

  4911. rm -r "$link_name"

  4912. 

  4913. # determine libc flavour

  4914. 

  4915. probe_libc(){

  4916.     pfx=$1

  4917.     pfx_no_=${pfx%_}

  4918.     # uclibc defines __GLIBC__, so it needs to be checked before glibc.

  4919.     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then

  4920.         eval ${pfx}libc_type=uclibc

  4921.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4922.     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then

  4923.         eval ${pfx}libc_type=glibc

  4924.         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600

  4925.     # MinGW headers can be installed on Cygwin, so check for newlib first.

  4926.     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then

  4927.         eval ${pfx}libc_type=newlib

  4928.         add_${pfx}cppflags -U__STRICT_ANSI__

  4929.     # MinGW64 is backwards compatible with MinGW32, so check for it first.

  4930.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then

  4931.         eval ${pfx}libc_type=mingw64

  4932.         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then

  4933.             add_compat msvcrt/snprintf.o

  4934.             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"

  4935.         fi

  4936.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4937.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4938.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4939.     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||

  4940.          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then

  4941.         eval ${pfx}libc_type=mingw32

  4942.         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \

  4943.             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||

  4944.             die "ERROR: MinGW32 runtime version must be >= 3.15."

  4945.         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1

  4946.         check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||

  4947.             add_${pfx}cppflags -D_WIN32_WINNT=0x0502

  4948.         eval test \$${pfx_no_}cc_type = "gcc" &&

  4949.             add_${pfx}cppflags -D__printf__=__gnu_printf__

  4950.     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then

  4951.         eval ${pfx}libc_type=msvcrt

  4952.         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then

  4953.             if [ "$pfx" = host_ ]; then

  4954.                 add_host_cppflags -Dsnprintf=_snprintf

  4955.             else

  4956.                 add_compat strtod.o strtod=avpriv_strtod

  4957.                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \

  4958.                                              _snprintf=avpriv_snprintf  \

  4959.                                              vsnprintf=avpriv_vsnprintf

  4960.             fi

  4961.         fi

  4962.         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to

  4963.         # 0x601 by default unless something else is set by the user.

  4964.         # This can easily lead to us detecting functions only present

  4965.         # in such new versions and producing binaries requiring windows 7.0.

  4966.         # Therefore explicitly set the default to XP unless the user has

  4967.         # set something else on the command line.

  4968.         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop

  4969.         # family. For these cases, configure is free to use any functions

  4970.         # found in the SDK headers by default. (Alternatively, we could force

  4971.         # _WIN32_WINNT to 0x0602 in that case.)

  4972.         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||

  4973.             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }

  4974. #ifdef WINAPI_FAMILY

  4975. #include <winapifamily.h>

  4976. #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

  4977. #error not desktop

  4978. #endif

  4979. #endif

  4980. EOF

  4981.     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then

  4982.         eval ${pfx}libc_type=klibc

  4983.     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then

  4984.         eval ${pfx}libc_type=bionic

  4985.     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then

  4986.         eval ${pfx}libc_type=solaris

  4987.         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600

  4988.     fi

  4989.     check_${pfx}cc <<EOF

  4990. #include <time.h>

  4991. void *v = localtime_r;

  4992. EOF

  4993. 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

  4994. #include <time.h>

  4995. void *v = localtime_r;

  4996. EOF

  4997. 

  4998. }

  4999. 

  5000. probe_libc

  5001. test -n "$libc_type" && enable libc_$libc_type

  5002. probe_libc host_

  5003. test -n "$host_libc_type" && enable host_libc_$host_libc_type

  5004. 

  5005. case $libc_type in

  5006.     bionic)

  5007.         add_compat strtod.o strtod=avpriv_strtod

  5008.         ;;

  5009. esac

  5010. 

  5011. # hacks for compiler/libc/os combinations

  5012. 

  5013. if enabled_all tms470 libc_glibc; then

  5014.     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"

  5015.     add_cppflags -D__USER_LABEL_PREFIX__=

  5016.     add_cppflags -D__builtin_memset=memset

  5017.     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED

  5018.     add_cflags   -pds=48    # incompatible redefinition of macro

  5019. fi

  5020. 

  5021. if enabled_all ccc libc_glibc; then

  5022.     add_ldflags -Wl,-z,now  # calls to libots crash without this

  5023. fi

  5024. 

  5025. check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||

  5026.     add_cppflags '-I\$(SRC_PATH)/compat/float'

  5027. 

  5028. esc(){

  5029.     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'

  5030. }

  5031. 

  5032. echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate

  5033. 

  5034. check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic

  5035. 

  5036. set_default libdir

  5037. : ${shlibdir_default:="$libdir"}

  5038. : ${pkgconfigdir_default:="$libdir/pkgconfig"}

  5039. 

  5040. set_default $PATHS_LIST

  5041. set_default nm

  5042. 

  5043. # we need to build at least one lib type

  5044. if ! enabled_any static shared; then

  5045.     cat <<EOF

  5046. At least one library type must be built.

  5047. Specify --enable-static to build the static libraries or --enable-shared to

  5048. build the shared libraries as well. To only build the shared libraries specify

  5049. --disable-static in addition to --enable-shared.

  5050. EOF

  5051.     exit 1

  5052. fi

  5053. 

  5054. die_license_disabled() {

  5055.     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }

  5056. }

  5057. 

  5058. die_license_disabled_gpl() {

  5059.     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }

  5060. }

  5061. 

  5062. die_license_disabled gpl frei0r

  5063. die_license_disabled gpl libcdio

  5064. die_license_disabled gpl librubberband

  5065. die_license_disabled gpl libsmbclient

  5066. die_license_disabled gpl libvidstab

  5067. die_license_disabled gpl libx264

  5068. die_license_disabled gpl libx265

  5069. die_license_disabled gpl libxavs

  5070. die_license_disabled gpl libxvid

  5071. die_license_disabled gpl x11grab

  5072. 

  5073. die_license_disabled nonfree cuda

  5074. die_license_disabled nonfree cuvid

  5075. die_license_disabled nonfree libfaac

  5076. die_license_disabled nonfree libnpp

  5077. enabled gpl && die_license_disabled_gpl nonfree libfdk_aac

  5078. enabled gpl && die_license_disabled_gpl nonfree openssl

  5079. 

  5080. die_license_disabled version3 gmp

  5081. die_license_disabled version3 libopencore_amrnb

  5082. die_license_disabled version3 libopencore_amrwb

  5083. die_license_disabled version3 libsmbclient

  5084. die_license_disabled version3 libvo_amrwbenc

  5085. 

  5086. enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }

  5087. 

  5088. disabled optimizations || check_cflags -fomit-frame-pointer

  5089. 

  5090. enable_weak_pic() {

  5091.     disabled pic && return

  5092.     enable pic

  5093.     add_cppflags -DPIC

  5094.     case "$target_os" in

  5095.     mingw*|cygwin*)

  5096.         ;;

  5097.     *)

  5098.         add_cflags -fPIC

  5099.         ;;

  5100.     esac

  5101.     add_asflags  -fPIC

  5102. }

  5103. 

  5104. enabled pic && enable_weak_pic

  5105. 

  5106. check_cc <<EOF || die "Symbol mangling check failed."

  5107. int ff_extern;

  5108. EOF

  5109. sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')

  5110. extern_prefix=${sym%%ff_extern*}

  5111. 

  5112. check_cc <<EOF && enable_weak inline_asm

  5113. void foo(void) { __asm__ volatile ("" ::); }

  5114. EOF

  5115. 

  5116. _restrict=

  5117. for restrict_keyword in restrict __restrict__ __restrict; do

  5118.     check_cc <<EOF && _restrict=$restrict_keyword && break

  5119. void foo(char * $restrict_keyword p);

  5120. EOF

  5121. done

  5122. 

  5123. check_cc <<EOF && enable pragma_deprecated

  5124. void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }

  5125. EOF

  5126. 

  5127. check_cc <<EOF && enable attribute_packed

  5128. struct { int x; } __attribute__((packed)) x;

  5129. EOF

  5130. 

  5131. check_cc <<EOF && enable attribute_may_alias

  5132. union { int x; } __attribute__((may_alias)) x;

  5133. EOF

  5134. 

  5135. check_cc <<EOF || die "endian test failed"

  5136. unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

  5137. EOF

  5138. od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

  5139. 

  5140. if ! enabled ppc64 || enabled bigendian; then

  5141.     disable vsx

  5142. fi

  5143. 

  5144. check_gas() {

  5145.     log "check_gas using '$as' as AS"

  5146.     # :vararg is used on aarch64, arm and ppc altivec

  5147.     check_as <<EOF || return 1

  5148. .macro m n, y:vararg=0

  5149. \n: .int \y

  5150. .endm

  5151. m x

  5152. EOF

  5153.     # .altmacro is only used in arm asm

  5154.     ! enabled arm || check_as <<EOF || return 1

  5155. .altmacro

  5156. EOF

  5157.     enable gnu_as

  5158.     return 0

  5159. }

  5160. 

  5161. if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then

  5162.     nogas=:

  5163.     enabled_any arm aarch64 && nogas=die

  5164.     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn

  5165.     as_noop=-v

  5166. 

  5167.     case $as_type in

  5168.         arm*) gaspp_as_type=armasm; as_noop=-h ;;

  5169.         gcc)  gaspp_as_type=gas ;;

  5170.         *)    gaspp_as_type=$as_type ;;

  5171.     esac

  5172. 

  5173.     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"

  5174. 

  5175.     test "${as#*gas-preprocessor.pl}" != "$as" ||

  5176.     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&

  5177.         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"

  5178. 

  5179.     if ! check_gas ; then

  5180.         as=${gas:=$as}

  5181.         check_gas || \

  5182.             $nogas "GNU assembler not found, install/update gas-preprocessor"

  5183.     fi

  5184. 

  5185.     check_as <<EOF && enable as_func

  5186. .func test

  5187. .endfunc

  5188. EOF

  5189. fi

  5190. 

  5191. check_inline_asm inline_asm_labels '"1:\n"'

  5192. 

  5193. check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'

  5194. 

  5195. if enabled aarch64; then

  5196.     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'

  5197.     # internal assembler in clang 3.3 does not support this instruction

  5198.     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'

  5199.     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'

  5200. 

  5201.     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM

  5202. 

  5203. elif enabled alpha; then

  5204. 

  5205.     check_cflags -mieee

  5206. 

  5207. elif enabled arm; then

  5208. 

  5209.     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb

  5210. 

  5211.     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb

  5212. float func(float a, float b){ return a+b; }

  5213. EOF

  5214. 

  5215.     enabled thumb && check_cflags -mthumb || check_cflags -marm

  5216. 

  5217.     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then

  5218.         enable vfp_args

  5219.     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then

  5220.         enable vfp_args

  5221.     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then

  5222.         case "${cross_prefix:-$cc}" in

  5223.             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;

  5224.             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;

  5225. __asm__ (".eabi_attribute 28, 1");

  5226. int main(void) { return 0; }

  5227. EOF

  5228.         esac

  5229.         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."

  5230.     fi

  5231. 

  5232.     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'

  5233.     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'

  5234.     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'

  5235.     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'

  5236.     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'

  5237.     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'

  5238.     enabled setend  && check_insn setend  'setend be'

  5239. 

  5240.     [ $target_os = linux ] || [ $target_os = android ] ||

  5241.         map 'enabled_any ${v}_external ${v}_inline || disable $v' \

  5242.             $ARCH_EXT_LIST_ARM

  5243. 

  5244.     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'

  5245. 

  5246.     check_as <<EOF && enable as_dn_directive

  5247. ra .dn d0.i16

  5248. .unreq ra

  5249. EOF

  5250. 

  5251.     # llvm's integrated assembler supports .object_arch from llvm 3.5

  5252.     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch

  5253. .object_arch armv4

  5254. EOF

  5255. 

  5256.     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic

  5257. 

  5258. elif enabled mips; then

  5259. 

  5260.     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'

  5261.     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'

  5262.     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'

  5263. 

  5264.     # Enable minimum ISA based on selected options

  5265.     if enabled mips64; then

  5266.         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'

  5267.         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'

  5268.         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'

  5269.     else

  5270.         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'

  5271.         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'

  5272.         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'

  5273.         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'

  5274.     fi

  5275. 

  5276.     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'

  5277.     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'

  5278.     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa

  5279.     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'

  5280.     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'

  5281. 

  5282. elif enabled parisc; then

  5283. 

  5284.     if enabled gcc; then

  5285.         case $($cc -dumpversion) in

  5286.             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;

  5287.         esac

  5288.     fi

  5289. 

  5290. elif enabled ppc; then

  5291. 

  5292.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5293. 

  5294.     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'

  5295.     check_inline_asm ibm_asm   '"add 0, 0, 0"'

  5296.     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'

  5297.     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

  5298. 

  5299.     # AltiVec flags: The FSF version of GCC differs from the Apple version

  5300.     if enabled altivec; then

  5301.         check_cflags -maltivec -mabi=altivec &&

  5302.         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||

  5303.         check_cflags -faltivec

  5304. 

  5305.         # check if our compiler supports Motorola AltiVec C API

  5306.         check_cc <<EOF || disable altivec

  5307. $inc_altivec_h

  5308. int main(void) {

  5309.     vector signed int v1 = (vector signed int) { 0 };

  5310.     vector signed int v2 = (vector signed int) { 1 };

  5311.     v1 = vec_add(v1, v2);

  5312.     return 0;

  5313. }

  5314. EOF

  5315. 

  5316.         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"

  5317.     fi

  5318. 

  5319.     if enabled vsx; then

  5320.         check_cflags -mvsx &&

  5321.         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx

  5322.     fi

  5323. 

  5324.     if enabled power8; then

  5325.         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8

  5326.     fi

  5327. 

  5328. elif enabled x86; then

  5329. 

  5330.     check_builtin rdtsc    intrin.h   "__rdtsc()"

  5331.     check_builtin mm_empty mmintrin.h "_mm_empty()"

  5332. 

  5333.     enable local_aligned_8 local_aligned_16 local_aligned_32

  5334. 

  5335.     # check whether EBP is available on x86

  5336.     # As 'i' is stored on the stack, this program will crash

  5337.     # if the base pointer is used to access it because the

  5338.     # base pointer is cleared in the inline assembly code.

  5339.     check_exec_crash <<EOF && enable ebp_available

  5340. volatile int i=0;

  5341. __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");

  5342. return i;

  5343. EOF

  5344. 

  5345.     # check whether EBX is available on x86

  5346.     check_inline_asm ebx_available '""::"b"(0)' &&

  5347.         check_inline_asm ebx_available '"":::"%ebx"'

  5348. 

  5349.     # check whether xmm clobbers are supported

  5350.     check_inline_asm xmm_clobbers '"":::"%xmm0"'

  5351. 

  5352.     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||

  5353.         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'

  5354. 

  5355.     # check whether binutils is new enough to compile SSSE3/MMXEXT

  5356.     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'

  5357.     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'

  5358. 

  5359.     if ! disabled_any asm mmx yasm; then

  5360.         if check_cmd $yasmexe --version; then

  5361.             enabled x86_64 && yasm_extra="-m amd64"

  5362.             yasm_debug="-g dwarf2"

  5363.         elif check_cmd nasm -v; then

  5364.             yasmexe=nasm

  5365.             yasm_debug="-g -F dwarf"

  5366.             if enabled x86_64; then

  5367.                 case "$objformat" in

  5368.                     elf)   objformat=elf64 ;;

  5369.                     win32) objformat=win64 ;;

  5370.                 esac

  5371.             fi

  5372.         fi

  5373. 

  5374.         YASMFLAGS="-f $objformat $yasm_extra"

  5375.         enabled pic               && append YASMFLAGS "-DPIC"

  5376.         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"

  5377.         case "$objformat" in

  5378.             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;

  5379.         esac

  5380. 

  5381.         check_yasm "movbe ecx, [5]" && enable yasm ||

  5382.             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."

  5383.         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external

  5384.         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external

  5385.         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external

  5386.         check_yasm "CPU amdnop" || disable cpunop

  5387.     fi

  5388. 

  5389.     case "$cpu" in

  5390.         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)

  5391.             disable fast_clz

  5392.         ;;

  5393.     esac

  5394. 

  5395. fi

  5396. 

  5397. check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon

  5398. 

  5399. check_ldflags -Wl,--as-needed

  5400. check_ldflags -Wl,-z,noexecstack

  5401. 

  5402. if check_func dlopen && check_func dlsym; then

  5403.     ldl=

  5404. elif check_func dlopen -ldl && check_func dlsym -ldl; then

  5405.     ldl=-ldl

  5406. fi

  5407. 

  5408. decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"

  5409. decklink_indev_extralibs="$decklink_indev_extralibs $ldl"

  5410. frei0r_filter_extralibs='$ldl'

  5411. frei0r_src_filter_extralibs='$ldl'

  5412. ladspa_filter_extralibs='$ldl'

  5413. nvenc_extralibs='$ldl'

  5414. coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5415. coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"

  5416. 

  5417. if ! disabled network; then

  5418.     check_func getaddrinfo $network_extralibs

  5419.     check_func inet_aton $network_extralibs

  5420. 

  5421.     check_type netdb.h "struct addrinfo"

  5422.     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE

  5423.     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE

  5424.     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE

  5425.     check_type poll.h "struct pollfd"

  5426.     check_type netinet/sctp.h "struct sctp_event_subscribe"

  5427.     check_struct "sys/socket.h" "struct msghdr" msg_flags

  5428.     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len

  5429.     check_type netinet/in.h "struct sockaddr_in6"

  5430.     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"

  5431.     check_type "sys/types.h sys/socket.h" socklen_t

  5432. 

  5433.     # Prefer arpa/inet.h over winsock2

  5434.     if check_header arpa/inet.h ; then

  5435.         check_func closesocket

  5436.     elif check_header winsock2.h ; then

  5437.         check_func_headers winsock2.h closesocket -lws2 &&

  5438.             network_extralibs="-lws2" ||

  5439.         { check_func_headers winsock2.h closesocket -lws2_32 &&

  5440.             network_extralibs="-lws2_32"; } || disable winsock2_h network

  5441.         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs

  5442. 

  5443.         check_type ws2tcpip.h socklen_t

  5444.         check_type ws2tcpip.h "struct addrinfo"

  5445.         check_type ws2tcpip.h "struct group_source_req"

  5446.         check_type ws2tcpip.h "struct ip_mreq_source"

  5447.         check_type ws2tcpip.h "struct ipv6_mreq"

  5448.         check_type winsock2.h "struct pollfd"

  5449.         check_struct winsock2.h "struct sockaddr" sa_len

  5450.         check_type ws2tcpip.h "struct sockaddr_in6"

  5451.         check_type ws2tcpip.h "struct sockaddr_storage"

  5452.     else

  5453.         disable network

  5454.     fi

  5455. fi

  5456. 

  5457. check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"

  5458. check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"

  5459. check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"

  5460. check_builtin MemoryBarrier windows.h "MemoryBarrier()"

  5461. check_builtin sarestart signal.h "SA_RESTART"

  5462. check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread

  5463. check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"

  5464. check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"

  5465. check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"

  5466. check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"

  5467. 

  5468. case "$custom_allocator" in

  5469.     jemalloc)

  5470.         # jemalloc by default does not use a prefix

  5471.         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc

  5472.     ;;

  5473.     tcmalloc)

  5474.         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc

  5475.         malloc_prefix=tc_

  5476.     ;;

  5477. esac

  5478. 

  5479. check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc

  5480. check_func  ${malloc_prefix}memalign            && enable memalign

  5481. check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign

  5482. 

  5483. check_func  access

  5484. check_func_headers stdlib.h arc4random

  5485. check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5486. check_func  fcntl

  5487. check_func  fork

  5488. check_func  gethrtime

  5489. check_func  getopt

  5490. check_func  getrusage

  5491. check_func  gettimeofday

  5492. check_func  isatty

  5493. check_func  mach_absolute_time

  5494. check_func  mkstemp

  5495. check_func  mmap

  5496. check_func  mprotect

  5497. # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that

  5498. check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }

  5499. check_func  sched_getaffinity

  5500. check_func  setrlimit

  5501. check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE

  5502. check_func  strerror_r

  5503. check_func  sysconf

  5504. check_func  sysctl

  5505. check_func  usleep

  5506. 

  5507. check_func_headers conio.h kbhit

  5508. check_func_headers io.h setmode

  5509. check_func_headers lzo/lzo1x.h lzo1x_999_compress

  5510. check_func_headers stdlib.h getenv

  5511. check_func_headers sys/stat.h lstat

  5512. 

  5513. check_func_headers windows.h CoTaskMemFree -lole32

  5514. check_func_headers windows.h GetProcessAffinityMask

  5515. check_func_headers windows.h GetProcessTimes

  5516. check_func_headers windows.h GetSystemTimeAsFileTime

  5517. check_func_headers windows.h LoadLibrary

  5518. check_func_headers windows.h MapViewOfFile

  5519. check_func_headers windows.h PeekNamedPipe

  5520. check_func_headers windows.h SetConsoleTextAttribute

  5521. check_func_headers windows.h SetConsoleCtrlHandler

  5522. check_func_headers windows.h Sleep

  5523. check_func_headers windows.h VirtualAlloc

  5524. check_struct windows.h "CONDITION_VARIABLE" Ptr

  5525. check_func_headers glob.h glob

  5526. enabled xlib &&

  5527.     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

  5528. 

  5529. check_header AudioToolbox/AudioToolbox.h

  5530. check_header direct.h

  5531. check_header dirent.h

  5532. check_header dlfcn.h

  5533. check_header d3d11.h

  5534. check_header dxva.h

  5535. check_header dxva2api.h -D_WIN32_WINNT=0x0600

  5536. check_header io.h

  5537. check_header libcrystalhd/libcrystalhd_if.h

  5538. check_header mach/mach_time.h

  5539. check_header malloc.h

  5540. check_header net/udplite.h

  5541. check_header poll.h

  5542. check_header sys/mman.h

  5543. check_header sys/param.h

  5544. check_header sys/resource.h

  5545. check_header sys/select.h

  5546. check_header sys/time.h

  5547. check_header sys/un.h

  5548. check_header termios.h

  5549. check_header unistd.h

  5550. check_header valgrind/valgrind.h

  5551. check_header vdpau/vdpau.h

  5552. check_header vdpau/vdpau_x11.h

  5553. check_header VideoDecodeAcceleration/VDADecoder.h

  5554. check_header VideoToolbox/VideoToolbox.h

  5555. check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox

  5556. enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo

  5557. check_header windows.h

  5558. check_header X11/extensions/XvMClib.h

  5559. check_header asm/types.h

  5560. 

  5561. check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32

  5562. check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32

  5563. check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi

  5564. check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"

  5565. 

  5566. check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss

  5567. 

  5568. check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5569. check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0

  5570. check_type "windows.h d3d11.h" "ID3D11VideoDecoder"

  5571. check_type "windows.h d3d11.h" "ID3D11VideoContext"

  5572. check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602

  5573. 

  5574. check_type "va/va.h" "VAPictureParameterBufferHEVC"

  5575. check_type "va/va.h" "VADecPictureParameterBufferVP9"

  5576. check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"

  5577. check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"

  5578. check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"

  5579. check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"

  5580. 

  5581. check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"

  5582. 

  5583. check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt

  5584. 

  5585. if ! disabled w32threads && ! enabled pthreads; then

  5586.     check_func_headers "windows.h process.h" _beginthreadex &&

  5587.         enable w32threads || disable w32threads

  5588.     if ! enabled w32threads && enabled winrt; then

  5589.         check_func_headers "windows.h" CreateThread &&

  5590.             enable w32threads || disable w32threads

  5591.     fi

  5592. fi

  5593. 

  5594. # check for some common methods of building with pthread support

  5595. # do this before the optional library checks as some of them require pthreads

  5596. if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then

  5597.     enable pthreads

  5598.     if check_func pthread_join -pthread && check_func pthread_create -pthread; then

  5599.         add_cflags -pthread

  5600.         add_extralibs -pthread

  5601.     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then

  5602.         add_cflags -pthreads

  5603.         add_extralibs -pthreads

  5604.     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then

  5605.         add_cflags -ldl -pthread

  5606.         add_extralibs -ldl -pthread

  5607.     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then

  5608.         add_extralibs -lpthreadGC2

  5609.     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then

  5610.         :

  5611.     elif ! check_func pthread_join && ! check_func pthread_create; then

  5612.         disable pthreads

  5613.     fi

  5614.     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads

  5615. fi

  5616. 

  5617. 

  5618. if enabled pthreads; then

  5619.   check_func pthread_cancel

  5620. fi

  5621. 

  5622. enabled pthreads &&

  5623.     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"

  5624. 

  5625. disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib

  5626. disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

  5627. disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma

  5628. 

  5629. check_lib math.h sin -lm && LIBM="-lm"

  5630. disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd

  5631. 

  5632. atan2f_args=2

  5633. copysign_args=2

  5634. hypot_args=2

  5635. ldexpf_args=2

  5636. powf_args=2

  5637. 

  5638. for func in $MATH_FUNCS; do

  5639.     eval check_mathfunc $func \${${func}_args:-1}

  5640. done

  5641. 

  5642. for func in $COMPLEX_FUNCS; do

  5643.     eval check_complexfunc $func \${${func}_args:-1}

  5644. done

  5645. 

  5646. # Enable CUVID by default if CUDA is enabled

  5647. if enabled cuda && ! disabled cuvid; then

  5648.     enable cuvid

  5649. fi

  5650. 

  5651. # these are off by default, so fail if requested and not available

  5652. enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }

  5653. enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||

  5654.                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }

  5655. enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||

  5656.                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||

  5657.                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }

  5658. enabled cuda              && { check_lib cuda.h cuInit -lcuda ||

  5659.                                die "ERROR: CUDA not found"; }

  5660. enabled cuvid             && { add_cflags -I$source_path;

  5661.                                check_lib "compat/cuda/cuviddec.h" cuvidCreateDecoder -lnvcuvid ||

  5662.                                die "ERROR: CUVID not found"; } &&

  5663.                              { enabled cuda ||

  5664.                                die "ERROR: CUVID requires CUDA"; }

  5665. enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint

  5666. enabled coreimage_filter  && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }

  5667. enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }

  5668. enabled decklink          && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&

  5669.                                { check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }

  5670. enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }

  5671. enabled gmp               && require2 gmp gmp.h mpz_export -lgmp

  5672. enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init

  5673. enabled jni               && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads &&

  5674.                                check_lib2 "dlfcn.h" dlopen -ldl; }

  5675. enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }

  5676. enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883

  5677. enabled libass            && require_pkg_config libass ass/ass.h ass_library_init

  5678. enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open

  5679. enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open

  5680. enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&

  5681.                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||

  5682.                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }

  5683. enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas

  5684. enabled libebur128        && require ebur128 ebur128.h ebur128_relative_threshold -lebur128

  5685. enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac

  5686. enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||

  5687.                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&

  5688.                                  warn "using libfdk without pkg-config"; } }

  5689. 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"

  5690. enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs

  5691. enabled fontconfig        && enable libfontconfig

  5692. enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit

  5693. enabled libfreetype       && require_libfreetype

  5694. enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info

  5695. enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++

  5696. enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do

  5697.                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;

  5698.                                done || die "ERROR: libgsm not found"; }

  5699. enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc

  5700. enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get

  5701. enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit

  5702. enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load

  5703. enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame

  5704. enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut

  5705. enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc

  5706. enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb

  5707. enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb

  5708. enabled libopencv         && { check_header opencv2/core/core_c.h &&

  5709.                                { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||

  5710.                                  require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||

  5711.                                require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }

  5712. enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion

  5713. enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5714.                                check_lib openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||

  5715.                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5716.                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||

  5717.                                die "ERROR: libopenjpeg not found"; }

  5718. enabled libopenmpt        && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create

  5719. enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create

  5720. enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new

  5721. enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

  5722. enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new

  5723. enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init

  5724. enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer

  5725. enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||

  5726.                                require smbclient libsmbclient.h smbc_init -lsmbclient; }

  5727. enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy

  5728. enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"

  5729. enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init

  5730. enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex

  5731. enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate

  5732. enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg

  5733. enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

  5734.                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||

  5735.                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }

  5736. enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl

  5737. enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit

  5738. enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc

  5739. enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg

  5740. 

  5741. enabled libvpx            && {

  5742.     enabled libvpx_vp8_decoder && {

  5743.         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||

  5744.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||

  5745.                 die "ERROR: libvpx decoder version must be >=0.9.1";

  5746.     }

  5747.     enabled libvpx_vp8_encoder && {

  5748.         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||

  5749.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||

  5750.                 die "ERROR: libvpx encoder version must be >=0.9.7";

  5751.     }

  5752.     enabled libvpx_vp9_decoder && {

  5753.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||

  5754.             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||

  5755.                 disable libvpx_vp9_decoder;

  5756.     }

  5757.     enabled libvpx_vp9_encoder && {

  5758.         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||

  5759.             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||

  5760.                 disable libvpx_vp9_encoder;

  5761.     }

  5762.     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then

  5763.         die "libvpx enabled but no supported decoders found"

  5764.     fi

  5765. }

  5766. 

  5767. enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack

  5768. enabled libwebp           && {

  5769.     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion

  5770.     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }

  5771. enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||

  5772.                                { require libx264 x264.h x264_encoder_encode -lx264 &&

  5773.                                  warn "using libx264 without pkg-config"; } } &&

  5774.                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||

  5775.                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&

  5776.                              { check_cpp_condition x264.h "X264_MPEG2" &&

  5777.                                enable libx262; }

  5778. enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&

  5779.                              { check_cpp_condition x265.h "X265_BUILD >= 68" ||

  5780.                                die "ERROR: libx265 version must be >= 68."; }

  5781. enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs

  5782. enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore

  5783. enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version

  5784. enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new

  5785. enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&

  5786.                              { check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||

  5787.                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }

  5788. enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }

  5789. enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||

  5790.                                 { ! enabled cross_compile && {

  5791.                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;

  5792.                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;

  5793.                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }

  5794.                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||

  5795.                                die "ERROR: mmal not found"; }

  5796. enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"

  5797. 

  5798. enabled netcdf            && require_pkg_config netcdf netcdf.h nc_inq_libvers

  5799. enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do

  5800.                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||

  5801.                                die "ERROR: openal not found"; } &&

  5802.                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||

  5803.                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }

  5804. enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||

  5805.                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||

  5806.                                die "ERROR: opencl not found"; } &&

  5807.                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||

  5808.                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||

  5809.                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }

  5810. enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||

  5811.                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||

  5812.                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||

  5813.                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||

  5814.                                die "ERROR: opengl not found."

  5815.                              }

  5816. enabled omx_rpi && enable omx

  5817. enabled omx               && { check_header OMX_Core.h ||

  5818.                                 { ! enabled cross_compile && enabled omx_rpi && {

  5819.                                     add_cflags -isystem/opt/vc/include/IL ; }

  5820.                                 check_header OMX_Core.h ; } ||

  5821.                                die "ERROR: OpenMAX IL headers not found"; }

  5822. enabled openssl           && { use_pkg_config openssl openssl/ssl.h SSL_library_init ||

  5823.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

  5824.                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||

  5825.                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||

  5826.                                die "ERROR: openssl not found"; }

  5827. enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }

  5828. 

  5829. # libdc1394 check

  5830. if enabled libdc1394; then

  5831.     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&

  5832.         enable libdc1394_2; } ||

  5833.     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&

  5834.         enable libdc1394_1; } ||

  5835.     die "ERROR: No version of libdc1394 found "

  5836. fi

  5837. 

  5838. if enabled gcrypt; then

  5839.     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

  5840.     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then

  5841.         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)

  5842.         gcrypt_libs=$("${GCRYPT_CONFIG}" --libs)

  5843.         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_libs ||

  5844.             die "ERROR: gcrypt not found"

  5845.         add_cflags $gcrypt_cflags && add_extralibs $gcrypt_libs

  5846.     else

  5847.         require2 gcrypt gcrypt.h gcry_mpi_new -lgcrypt

  5848.     fi

  5849. fi

  5850. 

  5851. disabled sdl && disable sdl2

  5852. if ! disabled sdl2; then

  5853.     SDL2_CONFIG="${cross_prefix}sdl2-config"

  5854.     if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then

  5855.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  5856.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  5857.         check_func SDL_Init $sdl2_libs $sdl2_cflags && enable sdl2

  5858.     else

  5859.       if "${SDL2_CONFIG}" --version > /dev/null 2>&1; then

  5860.         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)

  5861.         sdl2_libs=$("${SDL2_CONFIG}" --libs)

  5862.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&

  5863.         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&

  5864.         check_func SDL_Init $sdl2_libs $sdl2_cflags && enable sdl2

  5865.       fi

  5866.     fi

  5867.     if test $target_os = "mingw32"; then

  5868.         sdl2_libs="$sdl2_libs -mconsole"

  5869.     fi

  5870. fi

  5871. enabled sdl2 && add_cflags $sdl2_cflags && add_extralibs $sdl2_libs

  5872. 

  5873. disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5874.     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&

  5875.     enable securetransport; }

  5876. 

  5877. disabled schannel || { check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&

  5878.                        check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" && enable schannel && add_extralibs -lsecur32; }

  5879. 

  5880. makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo

  5881. enabled makeinfo \

  5882.     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \

  5883.     && enable makeinfo_html || disable makeinfo_html

  5884. disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html

  5885. perl -v            > /dev/null 2>&1 && enable perl      || disable perl

  5886. pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man

  5887. rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout

  5888. 

  5889. check_header linux/fb.h

  5890. check_header linux/videodev.h

  5891. check_header linux/videodev2.h

  5892. check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5893. 

  5894. check_header sys/videoio.h

  5895. check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete

  5896. 

  5897. check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"

  5898. # check that WM_CAP_DRIVER_CONNECT is defined to the proper value

  5899. # w32api 3.12 had it defined wrong

  5900. check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines

  5901. 

  5902. check_type "dshow.h" IBaseFilter

  5903. 

  5904. # check for ioctl_meteor.h, ioctl_bt848.h and alternatives

  5905. { check_header dev/bktr/ioctl_meteor.h &&

  5906.   check_header dev/bktr/ioctl_bt848.h; } ||

  5907. { check_header machine/ioctl_meteor.h &&

  5908.   check_header machine/ioctl_bt848.h; } ||

  5909. { check_header dev/video/meteor/ioctl_meteor.h &&

  5910.   check_header dev/video/bktr/ioctl_bt848.h; } ||

  5911. check_header dev/ic/bt8xx.h

  5912. 

  5913. check_header sndio.h

  5914. if check_struct sys/soundcard.h audio_buf_info bytes; then

  5915.     enable_safe sys/soundcard.h

  5916. else

  5917.     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h

  5918.     #include <sys/soundcard.h>

  5919.     audio_buf_info abc;

  5920. EOF

  5921. fi

  5922. check_header soundcard.h

  5923. 

  5924. enabled_any alsa_indev alsa_outdev &&

  5925.     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound

  5926. 

  5927. enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&

  5928.     check_func jack_port_get_latency_range -ljack

  5929. 

  5930. enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio

  5931. 

  5932. if enabled libcdio; then

  5933.     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5934.     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||

  5935.     die "ERROR: No usable libcdio/cdparanoia found"

  5936. fi

  5937. 

  5938. enabled xlib &&

  5939.     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib

  5940. 

  5941. if ! disabled libxcb; then

  5942.     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {

  5943.         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";

  5944.     } && disable x11grab && enable libxcb

  5945. 

  5946. if enabled libxcb; then

  5947.     disabled libxcb_shm || {

  5948.         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {

  5949.             enabled libxcb_shm && die "ERROR: libxcb_shm not found";

  5950.         } && check_header sys/shm.h && enable libxcb_shm; }

  5951. 

  5952.     disabled libxcb_xfixes || {

  5953.         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {

  5954.             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";

  5955.         } && enable libxcb_xfixes; }

  5956. 

  5957.     disabled libxcb_shape || {

  5958.         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {

  5959.             enabled libxcb_shape && die "ERROR: libxcb_shape not found";

  5960.         } && enable libxcb_shape; }

  5961. 

  5962.     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags

  5963.     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs

  5964. fi

  5965. fi

  5966. 

  5967. if enabled x11grab; then

  5968.     enabled xlib || die "ERROR: Xlib not found"

  5969.     require Xext X11/extensions/XShm.h XShmCreateImage -lXext

  5970.     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes

  5971. fi

  5972. 

  5973. check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"

  5974. 

  5975. enabled dxva2api_h &&

  5976.     check_cc <<EOF && enable dxva2api_cobj

  5977. #define _WIN32_WINNT 0x0600

  5978. #define COBJMACROS

  5979. #include <windows.h>

  5980. #include <d3d9.h>

  5981. #include <dxva2api.h>

  5982. int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }

  5983. EOF

  5984. 

  5985. enabled vaapi &&

  5986.     check_lib va/va.h vaInitialize -lva ||

  5987.     disable vaapi

  5988. 

  5989. enabled vaapi &&

  5990.     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||

  5991.     disable vaapi

  5992. 

  5993. if enabled vaapi ; then

  5994.     enabled xlib &&

  5995.     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&

  5996.     enable vaapi_x11

  5997. 

  5998.     check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&

  5999.     enable vaapi_drm

  6000. fi

  6001. 

  6002. enabled vdpau &&

  6003.     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||

  6004.     disable vdpau

  6005. 

  6006. enabled vdpau && enabled xlib &&

  6007.     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&

  6008.     enable vdpau_x11

  6009. 

  6010. if enabled x86; then

  6011.     case $target_os in

  6012.         mingw32*|mingw64*|win32|win64|linux|cygwin*)

  6013.             ;;

  6014.         *)

  6015.             disable nvenc

  6016.             ;;

  6017.     esac

  6018. else

  6019.     disable nvenc

  6020. fi

  6021. 

  6022. enabled nvenc &&

  6023.     check_cc -I$source_path <<EOF || disable nvenc

  6024. #include "compat/nvenc/nvEncodeAPI.h"

  6025. NV_ENCODE_API_FUNCTION_LIST flist;

  6026. void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }

  6027. int main(void) { return 0; }

  6028. EOF

  6029. 

  6030. # Funny iconv installations are not unusual, so check it after all flags have been set

  6031. disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv

  6032. 

  6033. enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"

  6034. 

  6035. # add some useful compiler flags if supported

  6036. check_cflags -Wdeclaration-after-statement

  6037. check_cflags -Wall

  6038. check_cflags -Wdisabled-optimization

  6039. check_cflags -Wpointer-arith

  6040. check_cflags -Wredundant-decls

  6041. check_cflags -Wwrite-strings

  6042. check_cflags -Wtype-limits

  6043. check_cflags -Wundef

  6044. check_cflags -Wmissing-prototypes

  6045. check_cflags -Wno-pointer-to-int-cast

  6046. check_cflags -Wstrict-prototypes

  6047. check_cflags -Wempty-body

  6048. enabled extra_warnings && check_cflags -Winline

  6049. enabled extra_warnings && check_cflags -Wcast-qual

  6050. 

  6051. check_disable_warning(){

  6052.     warning_flag=-W${1#-Wno-}

  6053.     test_cflags $warning_flag && add_cflags $1

  6054. }

  6055. 

  6056. check_disable_warning -Wno-parentheses

  6057. check_disable_warning -Wno-switch

  6058. check_disable_warning -Wno-format-zero-length

  6059. check_disable_warning -Wno-pointer-sign

  6060. check_disable_warning -Wno-unused-const-variable

  6061. 

  6062. # add some linker flags

  6063. check_ldflags -Wl,--warn-common

  6064. check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample

  6065. enabled rpath && add_ldexeflags -Wl,-rpath,$libdir

  6066. enabled rpath && add_ldlibflags -Wl,-rpath,$libdir

  6067. test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic

  6068. 

  6069. # add some strip flags

  6070. # -wN '..@*' is more selective than -x, but not available everywhere.

  6071. check_stripflags -wN \'..@*\' || check_stripflags -x

  6072. 

  6073. enabled neon_clobber_test &&

  6074.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6075.                   -Wl,--wrap,avcodec_decode_audio4      \

  6076.                   -Wl,--wrap,avcodec_decode_video2      \

  6077.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6078.                   -Wl,--wrap,avcodec_encode_audio2      \

  6079.                   -Wl,--wrap,avcodec_encode_video2      \

  6080.                   -Wl,--wrap,avcodec_send_packet        \

  6081.                   -Wl,--wrap,avcodec_receive_frame      \

  6082.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6083.                   -Wl,--wrap,swr_convert                \

  6084.                   -Wl,--wrap,avresample_convert ||

  6085.     disable neon_clobber_test

  6086. 

  6087. enabled xmm_clobber_test &&

  6088.     check_ldflags -Wl,--wrap,avcodec_open2              \

  6089.                   -Wl,--wrap,avcodec_decode_audio4      \

  6090.                   -Wl,--wrap,avcodec_decode_video2      \

  6091.                   -Wl,--wrap,avcodec_decode_subtitle2   \

  6092.                   -Wl,--wrap,avcodec_encode_audio2      \

  6093.                   -Wl,--wrap,avcodec_encode_video2      \

  6094.                   -Wl,--wrap,avcodec_encode_subtitle    \

  6095.                   -Wl,--wrap,avcodec_send_packet        \

  6096.                   -Wl,--wrap,avcodec_receive_frame      \

  6097.                   -Wl,--wrap,swr_convert                \

  6098.                   -Wl,--wrap,avresample_convert         \

  6099.                   -Wl,--wrap,sws_scale ||

  6100.     disable xmm_clobber_test

  6101. 

  6102. check_ld "cc" <<EOF && enable proper_dce

  6103. extern const int array[512];

  6104. static inline int func(void) { return array[0]; }

  6105. int main(void) { return 0; }

  6106. EOF

  6107. 

  6108. if enabled proper_dce; then

  6109.     echo "X { local: *; };" > $TMPV

  6110.     if test_ldflags -Wl,${version_script},$TMPV; then

  6111.         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'

  6112.         check_cc <<EOF && enable symver_asm_label

  6113. void ff_foo(void) __asm__ ("av_foo@VERSION");

  6114. void ff_foo(void) { ${inline_asm+__asm__($quotes);} }

  6115. EOF

  6116.         check_cc <<EOF && enable symver_gnu_asm

  6117. __asm__(".symver ff_foo,av_foo@VERSION");

  6118. void ff_foo(void) {}

  6119. EOF

  6120.     fi

  6121. fi

  6122. 

  6123. if [ -z "$optflags" ]; then

  6124.     if enabled small; then

  6125.         optflags=$cflags_size

  6126.     elif enabled optimizations; then

  6127.         optflags=$cflags_speed

  6128.     else

  6129.         optflags=$cflags_noopt

  6130.     fi

  6131. fi

  6132. 

  6133. check_optflags(){

  6134.     check_cflags "$@"

  6135.     enabled lto && check_ldflags "$@"

  6136. }

  6137. 

  6138. 

  6139. if enabled lto; then

  6140.     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"

  6141.     check_cflags  -flto

  6142.     check_ldflags -flto $cpuflags

  6143.     disable inline_asm_direct_symbol_refs

  6144. fi

  6145. 

  6146. check_optflags $optflags

  6147. check_optflags -fno-math-errno

  6148. check_optflags -fno-signed-zeros

  6149. 

  6150. enabled ftrapv && check_cflags -ftrapv

  6151. 

  6152. check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"

  6153. int x;

  6154. EOF

  6155. 

  6156. 

  6157. if enabled icc; then

  6158.     # Just warnings, no remarks

  6159.     check_cflags -w1

  6160.     # -wd: Disable following warnings

  6161.     # 144, 167, 556: -Wno-pointer-sign

  6162.     # 188: enumerated type mixed with another type

  6163.     # 1292: attribute "foo" ignored

  6164.     # 1419: external declaration in primary source file

  6165.     # 10006: ignoring unknown option -fno-signed-zeros

  6166.     # 10148: ignoring unknown option -Wno-parentheses

  6167.     # 10156: ignoring option '-W'; no argument required

  6168.     # 13200: No EMMS instruction before call to function

  6169.     # 13203: No EMMS instruction before return from function

  6170.     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203

  6171.     # 11030: Warning unknown option --as-needed

  6172.     # 10156: ignoring option '-export'; no argument required

  6173.     check_ldflags -wd10156,11030

  6174.     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test

  6175.     enable ebp_available

  6176.     # The test above does not test linking

  6177.     enabled lto && disable symver_asm_label

  6178.     if enabled x86_32; then

  6179.         icc_version=$($cc -dumpversion)

  6180.         test ${icc_version%%.*} -ge 11 &&

  6181.             check_cflags -falign-stack=maintain-16-byte ||

  6182.             disable aligned_stack

  6183.     fi

  6184. elif enabled ccc; then

  6185.     # disable some annoying warnings

  6186.     add_cflags -msg_disable bitnotint

  6187.     add_cflags -msg_disable mixfuncvoid

  6188.     add_cflags -msg_disable nonstandcast

  6189.     add_cflags -msg_disable unsupieee

  6190. elif enabled gcc; then

  6191.     check_optflags -fno-tree-vectorize

  6192.     check_cflags -Werror=format-security

  6193.     check_cflags -Werror=implicit-function-declaration

  6194.     check_cflags -Werror=missing-prototypes

  6195.     check_cflags -Werror=return-type

  6196.     check_cflags -Werror=vla

  6197.     check_cflags -Wformat

  6198.     check_cflags -fdiagnostics-color=auto

  6199.     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized

  6200. elif enabled llvm_gcc; then

  6201.     check_cflags -mllvm -stack-alignment=16

  6202. elif enabled clang; then

  6203.     check_cflags -mllvm -stack-alignment=16

  6204.     check_cflags -Qunused-arguments

  6205.     check_cflags -Werror=implicit-function-declaration

  6206.     check_cflags -Werror=missing-prototypes

  6207.     check_cflags -Werror=return-type

  6208. elif enabled cparser; then

  6209.     add_cflags -Wno-missing-variable-declarations

  6210.     add_cflags -Wno-empty-statement

  6211. elif enabled armcc; then

  6212.     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat

  6213.     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir

  6214.     # 2523: use of inline assembly is deprecated

  6215.     add_cflags -W${armcc_opt},--diag_suppress=2523

  6216.     add_cflags -W${armcc_opt},--diag_suppress=1207

  6217.     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition

  6218.     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat

  6219.     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign

  6220.     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign

  6221. elif enabled tms470; then

  6222.     add_cflags -pds=824 -pds=837

  6223.     disable inline_asm

  6224. elif enabled pathscale; then

  6225.     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF

  6226. elif enabled_any msvc icl; then

  6227.     enabled x86_32 && disable aligned_stack

  6228.     enabled_all x86_32 debug && add_cflags -Oy-

  6229.     enabled debug && add_ldflags -debug

  6230.     enable pragma_deprecated

  6231.     if enabled icl; then

  6232.         # -Qansi-alias is basically -fstrict-aliasing, but does not work

  6233.         # (correctly) on icl 13.x.

  6234.         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&

  6235.             add_cflags -Qansi-alias

  6236.         # Some inline asm is not compilable in debug

  6237.         if enabled debug; then

  6238.             disable ebp_available

  6239.             disable ebx_available

  6240.         fi

  6241.     fi

  6242.     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.

  6243.     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2

  6244.     # The CRT headers contain __declspec(restrict) in a few places, but if redefining

  6245.     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)

  6246.     # (as it ends up if the restrict redefine is done before including stdlib.h), while

  6247.     # MSVC 2013 and newer can handle it fine.

  6248.     # If this declspec fails, force including stdlib.h before the restrict redefinition

  6249.     # happens in config.h.

  6250.     if [ $_restrict != restrict ]; then

  6251.         check_cc <<EOF || add_cflags -FIstdlib.h

  6252. __declspec($_restrict) void* foo(int);

  6253. EOF

  6254.     fi

  6255.     check_func strtoll || add_cflags -Dstrtoll=_strtoi64

  6256.     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code

  6257.     # this flag should be re-checked on newer compiler releases and put under a

  6258.     # version check once its fixed

  6259.     check_cflags -d2SSAOptimizer-

  6260. fi

  6261. 

  6262. for pfx in "" host_; do

  6263.     varname=${pfx%_}cc_type

  6264.     eval "type=\$$varname"

  6265.     if [ $type = "msvc" ]; then

  6266.         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline

  6267. static inline int foo(int a) { return a; }

  6268. EOF

  6269.     fi

  6270. done

  6271. 

  6272. case $as_type in

  6273.     clang)

  6274.         add_asflags -Qunused-arguments

  6275.     ;;

  6276. esac

  6277. 

  6278. case $ld_type in

  6279.     clang)

  6280.         check_ldflags -Qunused-arguments

  6281.     ;;

  6282. esac

  6283. 

  6284. case $target_os in

  6285.     osf1)

  6286.         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'

  6287.     ;;

  6288.     plan9)

  6289.         add_cppflags -Dmain=plan9_main

  6290.     ;;

  6291. esac

  6292. 

  6293. enable frame_thread_encoder

  6294. 

  6295. enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }

  6296. 

  6297. check_deps $CONFIG_LIST       \

  6298.            $CONFIG_EXTRA      \

  6299.            $HAVE_LIST         \

  6300.            $ALL_COMPONENTS    \

  6301. 

  6302. 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"

  6303. 

  6304. 

  6305. if test $target_os = "haiku"; then

  6306.     disable memalign

  6307.     disable posix_memalign

  6308. fi

  6309. 

  6310. enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&

  6311.     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&

  6312.     enable dxva2_lib

  6313. 

  6314. ! enabled_any memalign posix_memalign aligned_malloc &&

  6315.     enabled simd_align_16 && enable memalign_hack

  6316. 

  6317. # add_dep lib dep

  6318. # -> enable ${lib}_deps_${dep}

  6319. # -> add $dep to ${lib}_deps only once

  6320. add_dep() {

  6321.     lib=$1

  6322.     dep=$2

  6323.     enabled "${lib}_deps_${dep}" && return 0

  6324.     enable  "${lib}_deps_${dep}"

  6325.     prepend "${lib}_deps" $dep

  6326. }

  6327. 

  6328. # merge deps lib components

  6329. # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*

  6330. merge_deps() {

  6331.     lib=$1

  6332.     shift

  6333.     for comp in $*; do

  6334.         enabled $comp || continue

  6335.         eval "dep=\"\$${comp}_deps\""

  6336.         for d in $dep; do

  6337.             add_dep $lib $d

  6338.         done

  6339.     done

  6340. }

  6341. 

  6342. merge_deps libavfilter $FILTER_LIST

  6343. 

  6344. map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST

  6345. 

  6346. for thread in $THREADS_LIST; do

  6347.     if enabled $thread; then

  6348.         test -n "$thread_type" &&

  6349.             die "ERROR: Only one thread type must be selected." ||

  6350.             thread_type="$thread"

  6351.     fi

  6352. done

  6353. 

  6354. enabled zlib && add_cppflags -DZLIB_CONST

  6355. 

  6356. # conditional library dependencies, in linking order

  6357. enabled afftfilt_filter     && prepend avfilter_deps "avcodec"

  6358. enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"

  6359. enabled aresample_filter    && prepend avfilter_deps "swresample"

  6360. enabled asyncts_filter      && prepend avfilter_deps "avresample"

  6361. enabled atempo_filter       && prepend avfilter_deps "avcodec"

  6362. enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"

  6363. enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"

  6364. enabled elbg_filter         && prepend avfilter_deps "avcodec"

  6365. enabled fftfilt_filter      && prepend avfilter_deps "avcodec"

  6366. enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"

  6367. enabled mcdeint_filter      && prepend avfilter_deps "avcodec"

  6368. enabled movie_filter    && prepend avfilter_deps "avformat avcodec"

  6369. enabled pan_filter          && prepend avfilter_deps "swresample"

  6370. enabled pp_filter           && prepend avfilter_deps "postproc"

  6371. enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"

  6372. enabled resample_filter && prepend avfilter_deps "avresample"

  6373. enabled sab_filter          && prepend avfilter_deps "swscale"

  6374. enabled scale_filter    && prepend avfilter_deps "swscale"

  6375. enabled scale2ref_filter    && prepend avfilter_deps "swscale"

  6376. enabled sofalizer_filter    && prepend avfilter_deps "avcodec"

  6377. enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"

  6378. enabled showfreqs_filter    && prepend avfilter_deps "avcodec"

  6379. enabled showspectrum_filter && prepend avfilter_deps "avcodec"

  6380. enabled smartblur_filter    && prepend avfilter_deps "swscale"

  6381. enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"

  6382. enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"

  6383. enabled uspp_filter         && prepend avfilter_deps "avcodec"

  6384. 

  6385. enabled lavfi_indev         && prepend avdevice_deps "avfilter"

  6386. 

  6387. enabled opus_decoder    && prepend avcodec_deps "swresample"

  6388. 

  6389. expand_deps(){

  6390.     lib_deps=${1}_deps

  6391.     eval "deps=\$$lib_deps"

  6392.     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)

  6393.     unique $lib_deps

  6394. }

  6395. 

  6396. #we have to remove gpl from the deps here as some code assumes all lib deps are libs

  6397. postproc_deps="$(filter_out 'gpl' $postproc_deps)"

  6398. 

  6399. map 'expand_deps $v' $LIBRARY_LIST

  6400. 

  6401. echo "install prefix            $prefix"

  6402. echo "source path               $source_path"

  6403. echo "C compiler                $cc"

  6404. echo "C library                 $libc_type"

  6405. if test "$host_cc" != "$cc"; then

  6406.     echo "host C compiler           $host_cc"

  6407.     echo "host C library            $host_libc_type"

  6408. fi

  6409. echo "ARCH                      $arch ($cpu)"

  6410. if test "$build_suffix" != ""; then

  6411.     echo "build suffix              $build_suffix"

  6412. fi

  6413. if test "$progs_suffix" != ""; then

  6414.     echo "progs suffix              $progs_suffix"

  6415. fi

  6416. if test "$extra_version" != ""; then

  6417.     echo "version string suffix     $extra_version"

  6418. fi

  6419. echo "big-endian                ${bigendian-no}"

  6420. echo "runtime cpu detection     ${runtime_cpudetect-no}"

  6421. if enabled x86; then

  6422.     echo "${yasmexe}                      ${yasm-no}"

  6423.     echo "MMX enabled               ${mmx-no}"

  6424.     echo "MMXEXT enabled            ${mmxext-no}"

  6425.     echo "3DNow! enabled            ${amd3dnow-no}"

  6426.     echo "3DNow! extended enabled   ${amd3dnowext-no}"

  6427.     echo "SSE enabled               ${sse-no}"

  6428.     echo "SSSE3 enabled             ${ssse3-no}"

  6429.     echo "AESNI enabled             ${aesni-no}"

  6430.     echo "AVX enabled               ${avx-no}"

  6431.     echo "XOP enabled               ${xop-no}"

  6432.     echo "FMA3 enabled              ${fma3-no}"

  6433.     echo "FMA4 enabled              ${fma4-no}"

  6434.     echo "i686 features enabled     ${i686-no}"

  6435.     echo "CMOV is fast              ${fast_cmov-no}"

  6436.     echo "EBX available             ${ebx_available-no}"

  6437.     echo "EBP available             ${ebp_available-no}"

  6438. fi

  6439. if enabled aarch64; then

  6440.     echo "NEON enabled              ${neon-no}"

  6441.     echo "VFP enabled               ${vfp-no}"

  6442. fi

  6443. if enabled arm; then

  6444.     echo "ARMv5TE enabled           ${armv5te-no}"

  6445.     echo "ARMv6 enabled             ${armv6-no}"

  6446.     echo "ARMv6T2 enabled           ${armv6t2-no}"

  6447.     echo "VFP enabled               ${vfp-no}"

  6448.     echo "NEON enabled              ${neon-no}"

  6449.     echo "THUMB enabled             ${thumb-no}"

  6450. fi

  6451. if enabled mips; then

  6452.     echo "MIPS FPU enabled          ${mipsfpu-no}"

  6453.     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"

  6454.     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"

  6455.     echo "MIPS MSA enabled          ${msa-no}"

  6456.     echo "LOONGSON MMI enabled      ${mmi-no}"

  6457. fi

  6458. if enabled ppc; then

  6459.     echo "AltiVec enabled           ${altivec-no}"

  6460.     echo "VSX enabled               ${vsx-no}"

  6461.     echo "POWER8 enabled            ${power8-no}"

  6462.     echo "PPC 4xx optimizations     ${ppc4xx-no}"

  6463.     echo "dcbzl available           ${dcbzl-no}"

  6464. fi

  6465. echo "debug symbols             ${debug-no}"

  6466. echo "strip symbols             ${stripping-no}"

  6467. echo "optimize for size         ${small-no}"

  6468. echo "optimizations             ${optimizations-no}"

  6469. echo "static                    ${static-no}"

  6470. echo "shared                    ${shared-no}"

  6471. echo "postprocessing support    ${postproc-no}"

  6472. echo "new filter support        ${avfilter-no}"

  6473. echo "network support           ${network-no}"

  6474. echo "threading support         ${thread_type-no}"

  6475. echo "safe bitstream reader     ${safe_bitstream_reader-no}"

  6476. echo "SDL2 support              ${sdl2-no}"

  6477. echo "opencl enabled            ${opencl-no}"

  6478. echo "JNI support               ${jni-no}"

  6479. echo "texi2html enabled         ${texi2html-no}"

  6480. echo "perl enabled              ${perl-no}"

  6481. echo "pod2man enabled           ${pod2man-no}"

  6482. echo "makeinfo enabled          ${makeinfo-no}"

  6483. echo "makeinfo supports HTML    ${makeinfo_html-no}"

  6484. test -n "$random_seed" &&

  6485.     echo "random seed               ${random_seed}"

  6486. echo

  6487. 

  6488. echo "Enabled programs:"

  6489. print_enabled '' $PROGRAM_LIST | print_in_columns

  6490. echo

  6491. 

  6492. echo "External libraries:"

  6493. print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns

  6494. echo

  6495. 

  6496. echo "External libraries providing hardware acceleration:"

  6497. print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns

  6498. echo

  6499. 

  6500. echo "Libraries:"

  6501. print_enabled '' $LIBRARY_LIST | print_in_columns

  6502. echo

  6503. 

  6504. for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do

  6505.     echo "Enabled ${type}s:"

  6506.     eval list=\$$(toupper $type)_LIST

  6507.     print_enabled '_*' $list | print_in_columns

  6508.     echo

  6509. done

  6510. 

  6511. license="LGPL version 2.1 or later"

  6512. if enabled nonfree; then

  6513.     license="nonfree and unredistributable"

  6514. elif enabled gplv3; then

  6515.     license="GPL version 3 or later"

  6516. elif enabled lgplv3; then

  6517.     license="LGPL version 3 or later"

  6518. elif enabled gpl; then

  6519.     license="GPL version 2 or later"

  6520. fi

  6521. 

  6522. echo "License: $license"

  6523. 

  6524. echo "Creating config.mak, config.h, and doc/config.texi..."

  6525. 

  6526. test -e Makefile || echo "include $source_path/Makefile" > Makefile

  6527. 

  6528. enabled stripping || strip="echo skipping strip"

  6529. 

  6530. config_files="$TMPH config.mak doc/config.texi"

  6531. 

  6532. cat > config.mak <<EOF

  6533. # Automatically generated by configure - do not modify!

  6534. ifndef FFMPEG_CONFIG_MAK

  6535. FFMPEG_CONFIG_MAK=1

  6536. FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION

  6537. prefix=$prefix

  6538. LIBDIR=\$(DESTDIR)$libdir

  6539. SHLIBDIR=\$(DESTDIR)$shlibdir

  6540. INCDIR=\$(DESTDIR)$incdir

  6541. BINDIR=\$(DESTDIR)$bindir

  6542. DATADIR=\$(DESTDIR)$datadir

  6543. DOCDIR=\$(DESTDIR)$docdir

  6544. MANDIR=\$(DESTDIR)$mandir

  6545. PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir

  6546. INSTALL_NAME_DIR=$install_name_dir

  6547. SRC_PATH=$source_path

  6548. SRC_LINK=$source_link

  6549. ifndef MAIN_MAKEFILE

  6550. SRC_PATH:=\$(SRC_PATH:.%=..%)

  6551. endif

  6552. CC_IDENT=$cc_ident

  6553. ARCH=$arch

  6554. INTRINSICS=$intrinsics

  6555. CC=$cc

  6556. CXX=$cxx

  6557. AS=$as

  6558. OBJCC=$objcc

  6559. LD=$ld

  6560. DEPCC=$dep_cc

  6561. DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)

  6562. DEPAS=$as

  6563. DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)

  6564. YASM=$yasmexe

  6565. DEPYASM=$yasmexe

  6566. AR=$ar

  6567. ARFLAGS=$arflags

  6568. AR_O=$ar_o

  6569. RANLIB=$ranlib

  6570. STRIP=$strip

  6571. CP=cp -p

  6572. LN_S=$ln_s

  6573. CPPFLAGS=$CPPFLAGS

  6574. CFLAGS=$CFLAGS

  6575. CXXFLAGS=$CXXFLAGS

  6576. OBJCFLAGS=$OBJCFLAGS

  6577. ASFLAGS=$ASFLAGS

  6578. AS_C=$AS_C

  6579. AS_O=$AS_O

  6580. OBJCC_C=$OBJCC_C

  6581. OBJCC_E=$OBJCC_E

  6582. OBJCC_O=$OBJCC_O

  6583. CC_C=$CC_C

  6584. CC_E=$CC_E

  6585. CC_O=$CC_O

  6586. CXX_C=$CXX_C

  6587. CXX_O=$CXX_O

  6588. LD_O=$LD_O

  6589. LD_LIB=$LD_LIB

  6590. LD_PATH=$LD_PATH

  6591. DLLTOOL=$dlltool

  6592. WINDRES=$windres

  6593. DEPWINDRES=$dep_cc

  6594. DOXYGEN=$doxygen

  6595. LDFLAGS=$LDFLAGS

  6596. LDEXEFLAGS=$LDEXEFLAGS

  6597. LDLIBFLAGS=$LDLIBFLAGS

  6598. SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))

  6599. ASMSTRIPFLAGS=$ASMSTRIPFLAGS

  6600. YASMFLAGS=$YASMFLAGS

  6601. BUILDSUF=$build_suffix

  6602. PROGSSUF=$progs_suffix

  6603. FULLNAME=$FULLNAME

  6604. LIBPREF=$LIBPREF

  6605. LIBSUF=$LIBSUF

  6606. LIBNAME=$LIBNAME

  6607. SLIBPREF=$SLIBPREF

  6608. SLIBSUF=$SLIBSUF

  6609. EXESUF=$EXESUF

  6610. EXTRA_VERSION=$extra_version

  6611. CCDEP=$CCDEP

  6612. CXXDEP=$CXXDEP

  6613. CCDEP_FLAGS=$CCDEP_FLAGS

  6614. ASDEP=$ASDEP

  6615. ASDEP_FLAGS=$ASDEP_FLAGS

  6616. CC_DEPFLAGS=$CC_DEPFLAGS

  6617. AS_DEPFLAGS=$AS_DEPFLAGS

  6618. HOSTCC=$host_cc

  6619. HOSTLD=$host_ld

  6620. HOSTCFLAGS=$host_cflags

  6621. HOSTCPPFLAGS=$host_cppflags

  6622. HOSTEXESUF=$HOSTEXESUF

  6623. HOSTLDFLAGS=$host_ldflags

  6624. HOSTLIBS=$host_libs

  6625. DEPHOSTCC=$host_cc

  6626. DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)

  6627. HOSTCCDEP=$HOSTCCDEP

  6628. HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS

  6629. HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS

  6630. HOSTCC_C=$HOSTCC_C

  6631. HOSTCC_O=$HOSTCC_O

  6632. HOSTLD_O=$HOSTLD_O

  6633. TARGET_EXEC=$target_exec $target_exec_args

  6634. TARGET_PATH=$target_path

  6635. TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}

  6636. CFLAGS-ffplay=${sdl2_cflags}

  6637. ZLIB=$($ldflags_filter -lz)

  6638. LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD

  6639. EXTRALIBS=$extralibs

  6640. COMPAT_OBJS=$compat_objs

  6641. EXEOBJS=$exeobjs

  6642. INSTALL=$install

  6643. LIBTARGET=${LIBTARGET}

  6644. SLIBNAME=${SLIBNAME}

  6645. SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}

  6646. SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}

  6647. SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}

  6648. SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}

  6649. SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}

  6650. SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}

  6651. SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}

  6652. SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}

  6653. VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}

  6654. SAMPLES:=${samples:-\$(FATE_SAMPLES)}

  6655. NOREDZONE_FLAGS=$noredzone_flags

  6656. EOF

  6657. 

  6658. get_version(){

  6659.     lcname=lib${1}

  6660.     name=$(toupper $lcname)

  6661.     file=$source_path/$lcname/version.h

  6662.     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")

  6663.     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))

  6664.     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO

  6665.     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak

  6666.     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak

  6667.     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak

  6668. }

  6669. 

  6670. map 'get_version $v' $LIBRARY_LIST

  6671. 

  6672. map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST

  6673. 

  6674. print_program_libs(){

  6675.     eval "program_libs=\$${1}_libs"

  6676.     eval echo "LIBS-${1}=${program_libs}" >> config.mak

  6677. }

  6678. 

  6679. map 'print_program_libs $v' $PROGRAM_LIST

  6680. 

  6681. cat > $TMPH <<EOF

  6682. /* Automatically generated by configure - do not modify! */

  6683. #ifndef FFMPEG_CONFIG_H

  6684. #define FFMPEG_CONFIG_H

  6685. #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"

  6686. #define FFMPEG_LICENSE "$(c_escape $license)"

  6687. #define CONFIG_THIS_YEAR 2016

  6688. #define FFMPEG_DATADIR "$(eval c_escape $datadir)"

  6689. #define AVCONV_DATADIR "$(eval c_escape $datadir)"

  6690. #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"

  6691. #define av_restrict $_restrict

  6692. #define EXTERN_PREFIX "${extern_prefix}"

  6693. #define EXTERN_ASM ${extern_prefix}

  6694. #define BUILDSUF "$build_suffix"

  6695. #define SLIBSUF "$SLIBSUF"

  6696. #define HAVE_MMX2 HAVE_MMXEXT

  6697. #define SWS_MAX_FILTER_SIZE $sws_max_filter_size

  6698. EOF

  6699. 

  6700. test -n "$assert_level" &&

  6701.     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH

  6702. 

  6703. test -n "$malloc_prefix" &&

  6704.     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH

  6705. 

  6706. if enabled yasm; then

  6707.     append config_files $TMPASM

  6708.     printf '' >$TMPASM

  6709. fi

  6710. 

  6711. enabled getenv || echo "#define getenv(x) NULL" >> $TMPH

  6712. 

  6713. 

  6714. mkdir -p doc

  6715. mkdir -p tests

  6716. mkdir -p tests/api

  6717. echo "@c auto-generated by configure - do not modify! " > doc/config.texi

  6718. 

  6719. print_config ARCH_   "$config_files" $ARCH_LIST

  6720. print_config HAVE_   "$config_files" $HAVE_LIST

  6721. print_config CONFIG_ "$config_files" $CONFIG_LIST       \

  6722.                                      $CONFIG_EXTRA      \

  6723.                                      $ALL_COMPONENTS    \

  6724. 

  6725. echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

  6726. echo "endif # FFMPEG_CONFIG_MAK" >> config.mak

  6727. 

  6728. # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.

  6729. cp_if_changed $TMPH config.h

  6730. touch .config

  6731. 

  6732. enabled yasm && cp_if_changed $TMPASM config.asm

  6733. 

  6734. cat > $TMPH <<EOF

  6735. /* Generated by ffconf */

  6736. #ifndef AVUTIL_AVCONFIG_H

  6737. #define AVUTIL_AVCONFIG_H

  6738. EOF

  6739. 

  6740. print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB

  6741. 

  6742. echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH

  6743. 

  6744. cp_if_changed $TMPH libavutil/avconfig.h

  6745. 

  6746. if test -n "$WARNINGS"; then

  6747.     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"

  6748.     enabled fatal_warnings && exit 1

  6749. fi

  6750. 

  6751. # generate the lists of enabled components

  6752. print_enabled_components(){

  6753.     file=$1

  6754.     struct_name=$2

  6755.     name=$3

  6756.     shift 3

  6757.     echo "static const $struct_name *$name[] = {" > $TMPH

  6758.     for c in $*; do

  6759.         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH

  6760.     done

  6761.     echo "    NULL };" >> $TMPH

  6762.     cp_if_changed $TMPH $file

  6763. }

  6764. 

  6765. print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST

  6766. print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST

  6767. 

  6768. # build pkg-config files

  6769. 

  6770. lib_version(){

  6771.     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""

  6772. }

  6773. 

  6774. pkgconfig_generate(){

  6775.     name=$1

  6776.     shortname=${name#lib}${build_suffix}

  6777.     comment=$2

  6778.     version=$3

  6779.     libs=$4

  6780.     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))

  6781.     requires=${requires%, }

  6782.     enabled ${name#lib} || return 0

  6783.     mkdir -p $name

  6784.     cat <<EOF > $name/$name${build_suffix}.pc

  6785. prefix=$prefix

  6786. exec_prefix=\${prefix}

  6787. libdir=$libdir

  6788. includedir=$incdir

  6789. 

  6790. Name: $name

  6791. Description: $comment

  6792. Version: $version

  6793. Requires: $(enabled shared || echo $requires)

  6794. Requires.private: $(enabled shared && echo $requires)

  6795. Conflicts:

  6796. Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)

  6797. Libs.private: $(enabled shared && echo $libs)

  6798. Cflags: -I\${includedir}

  6799. EOF

  6800. 

  6801. mkdir -p doc/examples/pc-uninstalled

  6802. includedir=${source_path}

  6803. [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."

  6804.     cat <<EOF > doc/examples/pc-uninstalled/$name.pc

  6805. prefix=

  6806. exec_prefix=

  6807. libdir=\${pcfiledir}/../../../$name

  6808. includedir=${includedir}

  6809. 

  6810. Name: $name

  6811. Description: $comment

  6812. Version: $version

  6813. Requires: $requires

  6814. Conflicts:

  6815. Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)

  6816. Cflags: -I\${includedir}

  6817. EOF

  6818. }

  6819. 

  6820. pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"

  6821. pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"

  6822. pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"

  6823. pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"

  6824. pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"

  6825. pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""

  6826. pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"

  6827. pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"

  6828. pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"