git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --quiet                  Suppress showing informative output
  67   --list-decoders          show all available decoders
  68   --list-encoders          show all available encoders
  69   --list-hwaccels          show all available hardware accelerators
  70   --list-demuxers          show all available demuxers
  71   --list-muxers            show all available muxers
  72   --list-parsers           show all available parsers
  73   --list-protocols         show all available protocols
  74   --list-bsfs              show all available bitstream filters
  75   --list-indevs            show all available input devices
  76   --list-outdevs           show all available output devices
  77   --list-filters           show all available filters
  78
  79 Standard options:
  80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
  81   --disable-logging        do not log configure debug information
  82   --fatal-warnings         fail if any configure warning is generated
  83   --prefix=PREFIX          install in PREFIX [$prefix_default]
  84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  87   --libdir=DIR             install libs in DIR [PREFIX/lib]
  88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  89   --incdir=DIR             install includes in DIR [PREFIX/include]
  90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  92   --enable-rpath           use rpath to allow installing libraries in paths
  93                            not part of the dynamic linker search path
  94                            use rpath when linking programs (USE WITH CARE)
  95   --install-name-dir=DIR   Darwin directory name for installed targets
  96
  97 Licensing options:
  98   --enable-gpl             allow use of GPL code, the resulting libs
  99                            and binaries will be under GPL [no]
 100   --enable-version3        upgrade (L)GPL to version 3 [no]
 101   --enable-nonfree         allow use of nonfree code, the resulting libs
 102                            and binaries will be unredistributable [no]
 103
 104 Configuration options:
 105   --disable-static         do not build static libraries [no]
 106   --enable-shared          build shared libraries [no]
 107   --enable-small           optimize for size instead of speed
 108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
 109   --enable-gray            enable full grayscale support (slower color)
 110   --disable-swscale-alpha  disable alpha channel support in swscale
 111   --disable-all            disable building components, libraries and programs
 112   --disable-autodetect     disable automatically detected external libraries [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
 120 Documentation options:
 121   --disable-doc            do not build documentation
 122   --disable-htmlpages      do not build HTML documentation pages
 123   --disable-manpages       do not build man documentation pages
 124   --disable-podpages       do not build POD documentation pages
 125   --disable-txtpages       do not build text documentation pages
 126
 127 Component options:
 128   --disable-avdevice       disable libavdevice build
 129   --disable-avcodec        disable libavcodec build
 130   --disable-avformat       disable libavformat build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build (deprecated) [no]
 136   --disable-pthreads       disable pthreads [autodetect]
 137   --disable-w32threads     disable Win32 threads [autodetect]
 138   --disable-os2threads     disable OS/2 threads [autodetect]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Individual component options:
 152   --disable-everything     disable all components listed below
 153   --disable-encoder=NAME   disable encoder NAME
 154   --enable-encoder=NAME    enable encoder NAME
 155   --disable-encoders       disable all encoders
 156   --disable-decoder=NAME   disable decoder NAME
 157   --enable-decoder=NAME    enable decoder NAME
 158   --disable-decoders       disable all decoders
 159   --disable-hwaccel=NAME   disable hwaccel NAME
 160   --enable-hwaccel=NAME    enable hwaccel NAME
 161   --disable-hwaccels       disable all hwaccels
 162   --disable-muxer=NAME     disable muxer NAME
 163   --enable-muxer=NAME      enable muxer NAME
 164   --disable-muxers         disable all muxers
 165   --disable-demuxer=NAME   disable demuxer NAME
 166   --enable-demuxer=NAME    enable demuxer NAME
 167   --disable-demuxers       disable all demuxers
 168   --enable-parser=NAME     enable parser NAME
 169   --disable-parser=NAME    disable parser NAME
 170   --disable-parsers        disable all parsers
 171   --enable-bsf=NAME        enable bitstream filter NAME
 172   --disable-bsf=NAME       disable bitstream filter NAME
 173   --disable-bsfs           disable all bitstream filters
 174   --enable-protocol=NAME   enable protocol NAME
 175   --disable-protocol=NAME  disable protocol NAME
 176   --disable-protocols      disable all protocols
 177   --enable-indev=NAME      enable input device NAME
 178   --disable-indev=NAME     disable input device NAME
 179   --disable-indevs         disable input devices
 180   --enable-outdev=NAME     enable output device NAME
 181   --disable-outdev=NAME    disable output device NAME
 182   --disable-outdevs        disable output devices
 183   --disable-devices        disable all devices
 184   --enable-filter=NAME     enable filter NAME
 185   --disable-filter=NAME    disable filter NAME
 186   --disable-filters        disable all filters
 187
 188 External library support:
 189
 190   Using any of the following switches will allow FFmpeg to link to the
 191   corresponding external library. All the components depending on that library
 192   will become enabled, if all their other dependencies are met and they are not
 193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 194   libwavpack and allow the libwavpack encoder to be built, unless it is
 195   specifically disabled with --disable-encoder=libwavpack.
 196
 197   Note that only the system libraries are auto-detected. All the other external
 198   libraries must be explicitly enabled.
 199
 200   Also note that the following help text describes the purpose of the libraries
 201   themselves, not all their features will necessarily be usable by FFmpeg.
 202
 203   --disable-alsa           disable ALSA support [autodetect]
 204   --disable-appkit         disable Apple AppKit framework [autodetect]
 205   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
 206   --enable-avisynth        enable reading of AviSynth script files [no]
 207   --disable-bzlib          disable bzlib [autodetect]
 208   --disable-coreimage      disable Apple CoreImage framework [autodetect]
 209   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 210   --enable-frei0r          enable frei0r video filtering [no]
 211   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 212                            if openssl, librtmp or gmp is not used [no]
 213   --enable-gmp             enable gmp, needed for rtmp(t)e support
 214                            if openssl or librtmp is not used [no]
 215   --enable-gnutls          enable gnutls, needed for https support
 216                            if openssl, libtls or mbedtls is not used [no]
 217   --disable-iconv          disable iconv [autodetect]
 218   --enable-jni             enable JNI support [no]
 219   --enable-ladspa          enable LADSPA audio filtering [no]
 220   --enable-libaom          enable AV1 video encoding/decoding via libaom [no]
 221   --enable-libaribb24      enable ARIB text and caption decoding via libaribb24 [no]
 222   --enable-libass          enable libass subtitles rendering,
 223                            needed for subtitles and ass filter [no]
 224   --enable-libbluray       enable BluRay reading using libbluray [no]
 225   --enable-libbs2b         enable bs2b DSP library [no]
 226   --enable-libcaca         enable textual display using libcaca [no]
 227   --enable-libcelt         enable CELT decoding via libcelt [no]
 228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 229   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
 230   --enable-libdav1d        enable AV1 decoding via libdav1d [no]
 231   --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
 232   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 233                            and libraw1394 [no]
 234   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 235   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 236   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 237   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 238   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 239   --enable-libgme          enable Game Music Emu via libgme [no]
 240   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 241   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 242   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 243   --enable-libjack         enable JACK audio sound server [no]
 244   --enable-libklvanc       enable Kernel Labs VANC processing [no]
 245   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 246   --enable-liblensfun      enable lensfun lens correction [no]
 247   --enable-libmodplug      enable ModPlug via libmodplug [no]
 248   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 249   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 250   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 251   --enable-libopencv       enable video filtering via libopencv [no]
 252   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 253   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 254   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 255   --enable-libopus         enable Opus de/encoding via libopus [no]
 256   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 257   --enable-librsvg         enable SVG rasterization via librsvg [no]
 258   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 259   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 260   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 261   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 262   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 263   --enable-libsoxr         enable Include libsoxr resampling [no]
 264   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 265   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
 266   --enable-libssh          enable SFTP protocol via libssh [no]
 267   --enable-libtensorflow   enable TensorFlow as a DNN module backend
 268                            for DNN based filters like sr [no]
 269   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 270   --enable-libtheora       enable Theora encoding via libtheora [no]
 271   --enable-libtls          enable LibreSSL (via libtls), needed for https support
 272                            if openssl, gnutls or mbedtls is not used [no]
 273   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 274   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 275   --enable-libvidstab      enable video stabilization using vid.stab [no]
 276   --enable-libvmaf         enable vmaf filter via libvmaf [no]
 277   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 278   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 279                            native implementation exists [no]
 280   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 281   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 282   --enable-libwebp         enable WebP encoding via libwebp [no]
 283   --enable-libx264         enable H.264 encoding via x264 [no]
 284   --enable-libx265         enable HEVC encoding via x265 [no]
 285   --enable-libxavs         enable AVS encoding via xavs [no]
 286   --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
 287   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 288   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 289   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 290   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 291   --enable-libxvid         enable Xvid encoding via xvidcore,
 292                            native MPEG-4/Xvid encoder exists [no]
 293   --enable-libxml2         enable XML parsing using the C library libxml2, needed
 294                            for dash demuxing support [no]
 295   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 296   --enable-libzmq          enable message passing via libzmq [no]
 297   --enable-libzvbi         enable teletext support via libzvbi [no]
 298   --enable-lv2             enable LV2 audio filtering [no]
 299   --disable-lzma           disable lzma [autodetect]
 300   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 301   --enable-mbedtls         enable mbedTLS, needed for https support
 302                            if openssl, gnutls or libtls is not used [no]
 303   --enable-mediacodec      enable Android MediaCodec support [no]
 304   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
 305   --enable-openal          enable OpenAL 1.1 capture support [no]
 306   --enable-opencl          enable OpenCL processing [no]
 307   --enable-opengl          enable OpenGL rendering [no]
 308   --enable-openssl         enable openssl, needed for https support
 309                            if gnutls, libtls or mbedtls is not used [no]
 310   --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
 311   --disable-sndio          disable sndio support [autodetect]
 312   --disable-schannel       disable SChannel SSP, needed for TLS support on
 313                            Windows if openssl and gnutls are not used [autodetect]
 314   --disable-sdl2           disable sdl2 [autodetect]
 315   --disable-securetransport disable Secure Transport, needed for TLS support
 316                            on OSX if openssl and gnutls are not used [autodetect]
 317   --enable-vapoursynth     enable VapourSynth demuxer [no]
 318   --disable-xlib           disable xlib [autodetect]
 319   --disable-zlib           disable zlib [autodetect]
 320
 321   The following libraries provide various hardware acceleration features:
 322   --disable-amf            disable AMF video encoding code [autodetect]
 323   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 324   --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
 325   --disable-cuvid          disable Nvidia CUVID support [autodetect]
 326   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 327   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 328   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
 329   --enable-libdrm          enable DRM code (Linux) [no]
 330   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 331   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 332   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 333   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
 334   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 335   --enable-omx             enable OpenMAX IL code [no]
 336   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 337   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
 338   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
 339   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 340   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 341   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 342
 343 Toolchain options:
 344   --arch=ARCH              select architecture [$arch]
 345   --cpu=CPU                select the minimum required CPU (affects
 346                            instruction selection, may crash on older CPUs)
 347   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 348   --progs-suffix=SUFFIX    program name suffix []
 349   --enable-cross-compile   assume a cross-compiler is used
 350   --sysroot=PATH           root of cross-build tree
 351   --sysinclude=PATH        location of cross-build system headers
 352   --target-os=OS           compiler targets OS [$target_os]
 353   --target-exec=CMD        command to run executables on target
 354   --target-path=DIR        path to view of build directory on target
 355   --target-samples=DIR     path to samples directory on target
 356   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 357   --toolchain=NAME         set tool defaults according to NAME
 358                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
 359                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
 360                            valgrind-massif, valgrind-memcheck,
 361                            msvc, icl, gcov, llvm-cov, hardened)
 362   --nm=NM                  use nm tool NM [$nm_default]
 363   --ar=AR                  use archive tool AR [$ar_default]
 364   --as=AS                  use assembler AS [$as_default]
 365   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 366   --strip=STRIP            use strip tool STRIP [$strip_default]
 367   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 368   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
 369   --cc=CC                  use C compiler CC [$cc_default]
 370   --cxx=CXX                use C compiler CXX [$cxx_default]
 371   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 372   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 373   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
 374   --ld=LD                  use linker LD [$ld_default]
 375   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 376   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 377   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 378   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 379   --host-cc=HOSTCC         use host C compiler HOSTCC
 380   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 381   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 382   --host-ld=HOSTLD         use host linker HOSTLD
 383   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 384   --host-extralibs=HLIBS   use libs HLIBS when linking for host
 385   --host-os=OS             compiler host OS [$target_os]
 386   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 387   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 388   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 389   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 390   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 391   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
 392   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 393   --extra-version=STRING   version string suffix []
 394   --optflags=OPTFLAGS      override optimization-related compiler flags
 395   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
 396   --build-suffix=SUFFIX    library name suffix []
 397   --enable-pic             build position-independent code
 398   --enable-thumb           compile for Thumb instruction set
 399   --enable-lto             use link-time optimization
 400   --env="ENV=override"     override the environment variables
 401
 402 Advanced options (experts only):
 403   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 404   --custom-allocator=NAME  use a supported custom allocator
 405   --disable-symver         disable symbol versioning
 406   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 407   --disable-safe-bitstream-reader
 408                            disable buffer boundary checking in bitreaders
 409                            (faster, but may crash)
 410   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 411
 412 Optimization options (experts only):
 413   --disable-asm            disable all assembly optimizations
 414   --disable-altivec        disable AltiVec optimizations
 415   --disable-vsx            disable VSX optimizations
 416   --disable-power8         disable POWER8 optimizations
 417   --disable-amd3dnow       disable 3DNow! optimizations
 418   --disable-amd3dnowext    disable 3DNow! extended optimizations
 419   --disable-mmx            disable MMX optimizations
 420   --disable-mmxext         disable MMXEXT optimizations
 421   --disable-sse            disable SSE optimizations
 422   --disable-sse2           disable SSE2 optimizations
 423   --disable-sse3           disable SSE3 optimizations
 424   --disable-ssse3          disable SSSE3 optimizations
 425   --disable-sse4           disable SSE4 optimizations
 426   --disable-sse42          disable SSE4.2 optimizations
 427   --disable-avx            disable AVX optimizations
 428   --disable-xop            disable XOP optimizations
 429   --disable-fma3           disable FMA3 optimizations
 430   --disable-fma4           disable FMA4 optimizations
 431   --disable-avx2           disable AVX2 optimizations
 432   --disable-avx512         disable AVX-512 optimizations
 433   --disable-aesni          disable AESNI optimizations
 434   --disable-armv5te        disable armv5te optimizations
 435   --disable-armv6          disable armv6 optimizations
 436   --disable-armv6t2        disable armv6t2 optimizations
 437   --disable-vfp            disable VFP optimizations
 438   --disable-neon           disable NEON optimizations
 439   --disable-inline-asm     disable use of inline assembly
 440   --disable-x86asm         disable use of standalone x86 assembly
 441   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 442   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 443   --disable-msa            disable MSA optimizations
 444   --disable-msa2           disable MSA2 optimizations
 445   --disable-mipsfpu        disable floating point MIPS optimizations
 446   --disable-mmi            disable Loongson SIMD optimizations
 447   --disable-fast-unaligned consider unaligned accesses slow
 448
 449 Developer options (useful when working on FFmpeg itself):
 450   --disable-debug          disable debugging symbols
 451   --enable-debug=LEVEL     set the debug level [$debuglevel]
 452   --disable-optimizations  disable compiler optimizations
 453   --enable-extra-warnings  enable more compiler warnings
 454   --disable-stripping      disable stripping of executables and shared libraries
 455   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 456                            2 causes a slowdown at runtime.
 457   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 458   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 459                            leaks and errors, using the specified valgrind binary.
 460                            Cannot be combined with --target-exec
 461   --enable-ftrapv          Trap arithmetic overflows
 462   --samples=PATH           location of test samples for FATE, if not set use
 463                            \$FATE_SAMPLES at make invocation time.
 464   --enable-neon-clobber-test check NEON registers for clobbering (should be
 465                            used only for debugging purposes)
 466   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 467                            should be used only for debugging purposes)
 468   --enable-random          randomly enable/disable components
 469   --disable-random
 470   --enable-random=LIST     randomly enable/disable specific components or
 471   --disable-random=LIST    component groups. LIST is a comma-separated list
 472                            of NAME[:PROB] entries where NAME is a component
 473                            (group) and PROB the probability associated with
 474                            NAME (default 0.5).
 475   --random-seed=VALUE      seed value for --enable/disable-random
 476   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 477                            (only applies to --disable-optimizations builds)
 478   --enable-ossfuzz         Enable building fuzzer tool
 479   --libfuzzer=PATH         path to libfuzzer
 480   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 481                            in the name) of tests whose result is ignored
 482   --enable-linux-perf      enable Linux Performance Monitor API
 483
 484 NOTE: Object files are built at the place where configure is launched.
 485 EOF
 486   exit 0
 487 }
 488
 489 if test -t 1 && which tput >/dev/null 2>&1; then
 490     ncolors=$(tput colors)
 491     if test -n "$ncolors" && test $ncolors -ge 8; then
 492         bold_color=$(tput bold)
 493         warn_color=$(tput setaf 3)
 494         error_color=$(tput setaf 1)
 495         reset_color=$(tput sgr0)
 496     fi
 497     # 72 used instead of 80 since that's the default of pr
 498     ncols=$(tput cols)
 499 fi
 500 : ${ncols:=72}
 501
 502 log(){
 503     echo "$@" >> $logfile
 504 }
 505
 506 log_file(){
 507     log BEGIN "$1"
 508     log_file_i=1
 509     while IFS= read -r log_file_line; do
 510         printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
 511         log_file_i=$(($log_file_i+1))
 512     done < "$1" >> "$logfile"
 513     log END "$1"
 514 }
 515
 516 warn(){
 517     log "WARNING: $*"
 518     WARNINGS="${WARNINGS}WARNING: $*\n"
 519 }
 520
 521 die(){
 522     log "$@"
 523     echo "$error_color$bold_color$@$reset_color"
 524     cat <<EOF
 525
 526 If you think configure made a mistake, make sure you are using the latest
 527 version from Git.  If the latest version fails, report the problem to the
 528 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 529 EOF
 530     if disabled logging; then
 531         cat <<EOF
 532 Rerun configure with logging enabled (do not use --disable-logging), and
 533 include the log this produces with your report.
 534 EOF
 535     else
 536         cat <<EOF
 537 Include the log file "$logfile" produced by configure as this will help
 538 solve the problem.
 539 EOF
 540     fi
 541     exit 1
 542 }
 543
 544 # Avoid locale weirdness, besides we really just want to translate ASCII.
 545 toupper(){
 546     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 547 }
 548
 549 tolower(){
 550     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 551 }
 552
 553 c_escape(){
 554     echo "$*" | sed 's/["\\]/\\\0/g'
 555 }
 556
 557 sh_quote(){
 558     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 559     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 560     echo "$v"
 561 }
 562
 563 cleanws(){
 564     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 565 }
 566
 567 filter(){
 568     pat=$1
 569     shift
 570     for v; do
 571         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
 572     done
 573 }
 574
 575 filter_out(){
 576     pat=$1
 577     shift
 578     for v; do
 579         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
 580     done
 581 }
 582
 583 map(){
 584     m=$1
 585     shift
 586     for v; do eval $m; done
 587 }
 588
 589 add_suffix(){
 590     suffix=$1
 591     shift
 592     for v; do echo ${v}${suffix}; done
 593 }
 594
 595 remove_suffix(){
 596     suffix=$1
 597     shift
 598     for v; do echo ${v%$suffix}; done
 599 }
 600
 601 set_all(){
 602     value=$1
 603     shift
 604     for var in $*; do
 605         eval $var=$value
 606     done
 607 }
 608
 609 set_weak(){
 610     value=$1
 611     shift
 612     for var; do
 613         eval : \${$var:=$value}
 614     done
 615 }
 616
 617 sanitize_var_name(){
 618     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 619 }
 620
 621 set_sanitized(){
 622     var=$1
 623     shift
 624     eval $(sanitize_var_name "$var")='$*'
 625 }
 626
 627 get_sanitized(){
 628     eval echo \$$(sanitize_var_name "$1")
 629 }
 630
 631 pushvar(){
 632     for pvar in $*; do
 633         eval level=\${${pvar}_level:=0}
 634         eval ${pvar}_${level}="\$$pvar"
 635         eval ${pvar}_level=$(($level+1))
 636     done
 637 }
 638
 639 popvar(){
 640     for pvar in $*; do
 641         eval level=\${${pvar}_level:-0}
 642         test $level = 0 && continue
 643         eval level=$(($level-1))
 644         eval $pvar="\${${pvar}_${level}}"
 645         eval ${pvar}_level=$level
 646         eval unset ${pvar}_${level}
 647     done
 648 }
 649
 650 request(){
 651     for var in $*; do
 652         eval ${var}_requested=yes
 653         eval $var=
 654     done
 655 }
 656
 657 warn_if_gets_disabled(){
 658     for var in $*; do
 659         WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
 660     done
 661 }
 662
 663 enable(){
 664     set_all yes $*
 665 }
 666
 667 disable(){
 668     set_all no $*
 669 }
 670
 671 disable_with_reason(){
 672     disable $1
 673     eval "${1}_disable_reason=\"$2\""
 674     if requested $1; then
 675         die "ERROR: $1 requested, but $2"
 676     fi
 677 }
 678
 679 enable_weak(){
 680     set_weak yes $*
 681 }
 682
 683 disable_weak(){
 684     set_weak no $*
 685 }
 686
 687 enable_sanitized(){
 688     for var; do
 689         enable $(sanitize_var_name $var)
 690     done
 691 }
 692
 693 disable_sanitized(){
 694     for var; do
 695         disable $(sanitize_var_name $var)
 696     done
 697 }
 698
 699 do_enable_deep(){
 700     for var; do
 701         enabled $var && continue
 702         set -- $var
 703         eval enable_deep \$${var}_select
 704         var=$1
 705         eval enable_deep_weak \$${var}_suggest
 706     done
 707 }
 708
 709 enable_deep(){
 710     do_enable_deep $*
 711     enable $*
 712 }
 713
 714 enable_deep_weak(){
 715     for var; do
 716         disabled $var && continue
 717         set -- $var
 718         do_enable_deep $var
 719         var=$1
 720         enable_weak $var
 721     done
 722 }
 723
 724 requested(){
 725     test "${1#!}" = "$1" && op="=" || op="!="
 726     eval test "x\$${1#!}_requested" $op "xyes"
 727 }
 728
 729 enabled(){
 730     test "${1#!}" = "$1" && op="=" || op="!="
 731     eval test "x\$${1#!}" $op "xyes"
 732 }
 733
 734 disabled(){
 735     test "${1#!}" = "$1" && op="=" || op="!="
 736     eval test "x\$${1#!}" $op "xno"
 737 }
 738
 739 enabled_all(){
 740     for opt; do
 741         enabled $opt || return 1
 742     done
 743 }
 744
 745 disabled_all(){
 746     for opt; do
 747         disabled $opt || return 1
 748     done
 749 }
 750
 751 enabled_any(){
 752     for opt; do
 753         enabled $opt && return 0
 754     done
 755 }
 756
 757 disabled_any(){
 758     for opt; do
 759         disabled $opt && return 0
 760     done
 761     return 1
 762 }
 763
 764 set_default(){
 765     for opt; do
 766         eval : \${$opt:=\$${opt}_default}
 767     done
 768 }
 769
 770 is_in(){
 771     value=$1
 772     shift
 773     for var in $*; do
 774         [ $var = $value ] && return 0
 775     done
 776     return 1
 777 }
 778
 779 # The cfg loop is very hot (several thousands iterations), and in bash also
 780 # potentialy quite slow. Try to abort the iterations early, preferably without
 781 # calling functions. 70%+ of the time cfg is already done or without deps.
 782 check_deps(){
 783     for cfg; do
 784         eval [ x\$${cfg}_checking = xdone ] && continue
 785         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
 786
 787         eval "
 788         dep_all=\$${cfg}_deps
 789         dep_any=\$${cfg}_deps_any
 790         dep_con=\$${cfg}_conflict
 791         dep_sel=\$${cfg}_select
 792         dep_sgs=\$${cfg}_suggest
 793         dep_ifa=\$${cfg}_if
 794         dep_ifn=\$${cfg}_if_any
 795         "
 796
 797         # most of the time here $cfg has no deps - avoid costly no-op work
 798         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
 799             eval ${cfg}_checking=inprogress
 800
 801             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
 802             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
 803             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
 804
 805             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 806             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 807             enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
 808             enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
 809             disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
 810             disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
 811
 812             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
 813
 814             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
 815                 # filter out library deps, these do not belong in extralibs
 816                 is_in $dep $LIBRARY_LIST && continue
 817                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
 818             done
 819         fi
 820
 821         eval ${cfg}_checking=done
 822     done
 823 }
 824
 825 print_config(){
 826     pfx=$1
 827     files=$2
 828     shift 2
 829     map 'eval echo "$v \${$v:-no}"' "$@" |
 830     awk "BEGIN { split(\"$files\", files) }
 831         {
 832             c = \"$pfx\" toupper(\$1);
 833             v = \$2;
 834             sub(/yes/, 1, v);
 835             sub(/no/,  0, v);
 836             for (f in files) {
 837                 file = files[f];
 838                 if (file ~ /\\.h\$/) {
 839                     printf(\"#define %s %d\\n\", c, v) >>file;
 840                 } else if (file ~ /\\.asm\$/) {
 841                     printf(\"%%define %s %d\\n\", c, v) >>file;
 842                 } else if (file ~ /\\.mak\$/) {
 843                     n = -v ? \"\" : \"!\";
 844                     printf(\"%s%s=yes\\n\", n, c) >>file;
 845                 } else if (file ~ /\\.texi\$/) {
 846                     pre = -v ? \"\" : \"@c \";
 847                     yesno = \$2;
 848                     c2 = tolower(c);
 849                     gsub(/_/, \"-\", c2);
 850                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 851                 }
 852             }
 853         }"
 854 }
 855
 856 print_enabled(){
 857     suf=$1
 858     shift
 859     for v; do
 860         enabled $v && printf "%s\n" ${v%$suf}
 861     done
 862 }
 863
 864 append(){
 865     var=$1
 866     shift
 867     eval "$var=\"\$$var $*\""
 868 }
 869
 870 prepend(){
 871     var=$1
 872     shift
 873     eval "$var=\"$* \$$var\""
 874 }
 875
 876 reverse () {
 877     eval '
 878         reverse_out=
 879         for v in $'$1'; do
 880             reverse_out="$v $reverse_out"
 881         done
 882         '$1'=$reverse_out
 883     '
 884 }
 885
 886 # keeps the last occurence of each non-unique item
 887 unique(){
 888     unique_out=
 889     eval unique_in=\$$1
 890     reverse unique_in
 891     for v in $unique_in; do
 892         # " $unique_out" +space such that every item is surrounded with spaces
 893         case " $unique_out" in *" $v "*) continue; esac  # already in list
 894         unique_out="$unique_out$v "
 895     done
 896     reverse unique_out
 897     eval $1=\$unique_out
 898 }
 899
 900 resolve(){
 901     resolve_out=
 902     eval resolve_in=\$$1
 903     for v in $resolve_in; do
 904         eval 'resolve_out="$resolve_out$'$v' "'
 905     done
 906     eval $1=\$resolve_out
 907 }
 908
 909 add_cppflags(){
 910     append CPPFLAGS "$@"
 911 }
 912
 913 add_cflags(){
 914     append CFLAGS $($cflags_filter "$@")
 915 }
 916
 917 add_cflags_headers(){
 918     append CFLAGS_HEADERS $($cflags_filter "$@")
 919 }
 920
 921 add_cxxflags(){
 922     append CXXFLAGS $($cflags_filter "$@")
 923 }
 924
 925 add_objcflags(){
 926     append OBJCFLAGS $($objcflags_filter "$@")
 927 }
 928
 929 add_asflags(){
 930     append ASFLAGS $($asflags_filter "$@")
 931 }
 932
 933 add_ldflags(){
 934     append LDFLAGS $($ldflags_filter "$@")
 935 }
 936
 937 add_ldexeflags(){
 938     append LDEXEFLAGS $($ldflags_filter "$@")
 939 }
 940
 941 add_ldsoflags(){
 942     append LDSOFLAGS $($ldflags_filter "$@")
 943 }
 944
 945 add_extralibs(){
 946     prepend extralibs $($ldflags_filter "$@")
 947 }
 948
 949 add_stripflags(){
 950     append ASMSTRIPFLAGS "$@"
 951 }
 952
 953 add_host_cppflags(){
 954     append host_cppflags "$@"
 955 }
 956
 957 add_host_cflags(){
 958     append host_cflags $($host_cflags_filter "$@")
 959 }
 960
 961 add_host_ldflags(){
 962     append host_ldflags $($host_ldflags_filter "$@")
 963 }
 964
 965 add_compat(){
 966     append compat_objs $1
 967     shift
 968     map 'add_cppflags -D$v' "$@"
 969 }
 970
 971 test_cmd(){
 972     log "$@"
 973     "$@" >> $logfile 2>&1
 974 }
 975
 976 test_stat(){
 977     log test_stat "$@"
 978     stat "$1" >> $logfile 2>&1
 979 }
 980
 981 cc_e(){
 982     eval printf '%s\\n' $CC_E
 983 }
 984
 985 cc_o(){
 986     eval printf '%s\\n' $CC_O
 987 }
 988
 989 as_o(){
 990     eval printf '%s\\n' $AS_O
 991 }
 992
 993 x86asm_o(){
 994     eval printf '%s\\n' $X86ASM_O
 995 }
 996
 997 ld_o(){
 998     eval printf '%s\\n' $LD_O
 999 }
1000
1001 hostcc_e(){
1002     eval printf '%s\\n' $HOSTCC_E
1003 }
1004
1005 hostcc_o(){
1006     eval printf '%s\\n' $HOSTCC_O
1007 }
1008
1009 nvcc_o(){
1010     eval printf '%s\\n' $NVCC_O
1011 }
1012
1013 test_cc(){
1014     log test_cc "$@"
1015     cat > $TMPC
1016     log_file $TMPC
1017     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
1018 }
1019
1020 test_cxx(){
1021     log test_cxx "$@"
1022     cat > $TMPCPP
1023     log_file $TMPCPP
1024     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1025 }
1026
1027 test_objcc(){
1028     log test_objcc "$@"
1029     cat > $TMPM
1030     log_file $TMPM
1031     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1032 }
1033
1034 test_nvcc(){
1035     log test_nvcc "$@"
1036     cat > $TMPCU
1037     log_file $TMPCU
1038     tmpcu_=$TMPCU
1039     tmpo_=$TMPO
1040     [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
1041     test_cmd $nvcc -ptx $NVCCFLAGS "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
1042 }
1043
1044 check_nvcc() {
1045     log check_nvcc "$@"
1046     test_nvcc <<EOF
1047 extern "C" {
1048     __global__ void hello(unsigned char *data) {}
1049 }
1050 EOF
1051 }
1052
1053 test_cpp(){
1054     log test_cpp "$@"
1055     cat > $TMPC
1056     log_file $TMPC
1057     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1058 }
1059
1060 test_as(){
1061     log test_as "$@"
1062     cat > $TMPS
1063     log_file $TMPS
1064     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1065 }
1066
1067 test_x86asm(){
1068     log test_x86asm "$@"
1069     echo "$1" > $TMPASM
1070     log_file $TMPASM
1071     shift
1072     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1073 }
1074
1075 check_cmd(){
1076     log check_cmd "$@"
1077     cmd=$1
1078     disabled $cmd && return
1079     disable $cmd
1080     test_cmd $@ && enable $cmd
1081 }
1082
1083 check_as(){
1084     log check_as "$@"
1085     name=$1
1086     code=$2
1087     shift 2
1088     disable $name
1089     test_as $@ <<EOF && enable $name
1090 $code
1091 EOF
1092 }
1093
1094 check_inline_asm(){
1095     log check_inline_asm "$@"
1096     name="$1"
1097     code="$2"
1098     shift 2
1099     disable $name
1100     test_cc "$@" <<EOF && enable $name
1101 void foo(void){ __asm__ volatile($code); }
1102 EOF
1103 }
1104
1105 check_inline_asm_flags(){
1106     log check_inline_asm_flags "$@"
1107     name="$1"
1108     code="$2"
1109     flags=''
1110     shift 2
1111     while [ "$1" != "" ]; do
1112       append flags $1
1113       shift
1114     done;
1115     disable $name
1116     cat > $TMPC <<EOF
1117 void foo(void){ __asm__ volatile($code); }
1118 EOF
1119     log_file $TMPC
1120     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1121     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1122 }
1123
1124 check_insn(){
1125     log check_insn "$@"
1126     check_inline_asm ${1}_inline "\"$2\""
1127     check_as ${1}_external "$2"
1128 }
1129
1130 check_x86asm(){
1131     log check_x86asm "$@"
1132     name=$1
1133     shift
1134     disable $name
1135     test_x86asm "$@" && enable $name
1136 }
1137
1138 test_ld(){
1139     log test_ld "$@"
1140     type=$1
1141     shift 1
1142     flags=$(filter_out '-l*|*.so' $@)
1143     libs=$(filter '-l*|*.so' $@)
1144     test_$type $($cflags_filter $flags) || return
1145     flags=$($ldflags_filter $flags)
1146     libs=$($ldflags_filter $libs)
1147     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1148 }
1149
1150 check_ld(){
1151     log check_ld "$@"
1152     type=$1
1153     name=$2
1154     shift 2
1155     disable $name
1156     test_ld $type $@ && enable $name
1157 }
1158
1159 print_include(){
1160     hdr=$1
1161     test "${hdr%.h}" = "${hdr}" &&
1162         echo "#include $hdr"    ||
1163         echo "#include <$hdr>"
1164 }
1165
1166 test_code(){
1167     log test_code "$@"
1168     check=$1
1169     headers=$2
1170     code=$3
1171     shift 3
1172     {
1173         for hdr in $headers; do
1174             print_include $hdr
1175         done
1176         echo "int main(void) { $code; return 0; }"
1177     } | test_$check "$@"
1178 }
1179
1180 check_cppflags(){
1181     log check_cppflags "$@"
1182     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1183 #include <stdlib.h>
1184 EOF
1185 }
1186
1187 test_cflags(){
1188     log test_cflags "$@"
1189     set -- $($cflags_filter "$@")
1190     test_cc "$@" <<EOF
1191 int x;
1192 EOF
1193 }
1194
1195 check_cflags(){
1196     log check_cflags "$@"
1197     test_cflags "$@" && add_cflags "$@"
1198 }
1199
1200 check_cxxflags(){
1201     log check_cxxflags "$@"
1202     set -- $($cflags_filter "$@")
1203     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1204 int x;
1205 EOF
1206 }
1207
1208 test_objcflags(){
1209     log test_objcflags "$@"
1210     set -- $($objcflags_filter "$@")
1211     test_objcc "$@" <<EOF
1212 int x;
1213 EOF
1214 }
1215
1216 check_objcflags(){
1217     log check_objcflags "$@"
1218     test_objcflags "$@" && add_objcflags "$@"
1219 }
1220
1221 test_ldflags(){
1222     log test_ldflags "$@"
1223     set -- $($ldflags_filter "$@")
1224     test_ld "cc" "$@" <<EOF
1225 int main(void){ return 0; }
1226 EOF
1227 }
1228
1229 check_ldflags(){
1230     log check_ldflags "$@"
1231     test_ldflags "$@" && add_ldflags "$@"
1232 }
1233
1234 test_stripflags(){
1235     log test_stripflags "$@"
1236     # call test_cc to get a fresh TMPO
1237     test_cc <<EOF
1238 int main(void) { return 0; }
1239 EOF
1240     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1241 }
1242
1243 check_stripflags(){
1244     log check_stripflags "$@"
1245     test_stripflags "$@" && add_stripflags "$@"
1246 }
1247
1248 check_headers(){
1249     log check_headers "$@"
1250     headers=$1
1251     shift
1252     disable_sanitized $headers
1253     {
1254         for hdr in $headers; do
1255             print_include $hdr
1256         done
1257         echo "int x;"
1258     } | test_cpp "$@" && enable_sanitized $headers
1259 }
1260
1261 check_header_objcc(){
1262     log check_header_objcc "$@"
1263     rm -f -- "$TMPO"
1264     header=$1
1265     shift
1266     disable_sanitized $header
1267     {
1268        echo "#include <$header>"
1269        echo "int main(void) { return 0; }"
1270     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1271 }
1272
1273 check_apple_framework(){
1274     log check_apple_framework "$@"
1275     framework="$1"
1276     name="$(tolower $framework)"
1277     header="${framework}/${framework}.h"
1278     disable $name
1279     check_header_objcc $header &&
1280         enable $name && eval ${name}_extralibs='"-framework $framework"'
1281 }
1282
1283 check_func(){
1284     log check_func "$@"
1285     func=$1
1286     shift
1287     disable $func
1288     test_ld "cc" "$@" <<EOF && enable $func
1289 extern int $func();
1290 int main(void){ $func(); }
1291 EOF
1292 }
1293
1294 check_complexfunc(){
1295     log check_complexfunc "$@"
1296     func=$1
1297     narg=$2
1298     shift 2
1299     test $narg = 2 && args="f, g" || args="f * I"
1300     disable $func
1301     test_ld "cc" "$@" <<EOF && enable $func
1302 #include <complex.h>
1303 #include <math.h>
1304 float foo(complex float f, complex float g) { return $func($args); }
1305 int main(void){ return (int) foo; }
1306 EOF
1307 }
1308
1309 check_mathfunc(){
1310     log check_mathfunc "$@"
1311     func=$1
1312     narg=$2
1313     shift 2
1314     test $narg = 2 && args="f, g" || args="f"
1315     disable $func
1316     test_ld "cc" "$@" <<EOF && enable $func
1317 #include <math.h>
1318 float foo(float f, float g) { return $func($args); }
1319 int main(void){ return (int) foo; }
1320 EOF
1321 }
1322
1323 check_func_headers(){
1324     log check_func_headers "$@"
1325     headers=$1
1326     funcs=$2
1327     shift 2
1328     {
1329         for hdr in $headers; do
1330             print_include $hdr
1331         done
1332         echo "#include <stdint.h>"
1333         for func in $funcs; do
1334             echo "long check_$func(void) { return (long) $func; }"
1335         done
1336         echo "int main(void) { int ret = 0;"
1337         # LTO could optimize out the test functions without this
1338         for func in $funcs; do
1339             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1340         done
1341         echo "return ret; }"
1342     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1343 }
1344
1345 check_class_headers_cpp(){
1346     log check_class_headers_cpp "$@"
1347     headers=$1
1348     classes=$2
1349     shift 2
1350     {
1351         for hdr in $headers; do
1352             echo "#include <$hdr>"
1353         done
1354         echo "int main(void) { "
1355         i=1
1356         for class in $classes; do
1357             echo "$class obj$i;"
1358             i=$(expr $i + 1)
1359         done
1360         echo "return 0; }"
1361     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1362 }
1363
1364 test_cpp_condition(){
1365     log test_cpp_condition "$@"
1366     header=$1
1367     condition=$2
1368     shift 2
1369     test_cpp "$@" <<EOF
1370 #include <$header>
1371 #if !($condition)
1372 #error "unsatisfied condition: $condition"
1373 #endif
1374 EOF
1375 }
1376
1377 check_cpp_condition(){
1378     log check_cpp_condition "$@"
1379     name=$1
1380     shift 1
1381     disable $name
1382     test_cpp_condition "$@" && enable $name
1383 }
1384
1385 test_cflags_cc(){
1386     log test_cflags_cc "$@"
1387     flags=$1
1388     header=$2
1389     condition=$3
1390     shift 3
1391     set -- $($cflags_filter "$flags")
1392     test_cc "$@" <<EOF
1393 #include <$header>
1394 #if !($condition)
1395 #error "unsatisfied condition: $condition"
1396 #endif
1397 EOF
1398 }
1399
1400 check_lib(){
1401     log check_lib "$@"
1402     name="$1"
1403     headers="$2"
1404     funcs="$3"
1405     shift 3
1406     disable $name
1407     check_func_headers "$headers" "$funcs" "$@" &&
1408         enable $name && eval ${name}_extralibs="\$@"
1409 }
1410
1411 check_lib_cpp(){
1412     log check_lib_cpp "$@"
1413     name="$1"
1414     headers="$2"
1415     classes="$3"
1416     shift 3
1417     disable $name
1418     check_class_headers_cpp "$headers" "$classes" "$@" &&
1419         enable $name && eval ${name}_extralibs="\$@"
1420 }
1421
1422 test_pkg_config(){
1423     log test_pkg_config "$@"
1424     name="$1"
1425     pkg_version="$2"
1426     pkg="${2%% *}"
1427     headers="$3"
1428     funcs="$4"
1429     shift 4
1430     disable $name
1431     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1432     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1433     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1434     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1435         enable $name &&
1436         set_sanitized "${name}_cflags"    $pkg_cflags &&
1437         set_sanitized "${name}_extralibs" $pkg_libs
1438 }
1439
1440 check_pkg_config(){
1441     log check_pkg_config "$@"
1442     name="$1"
1443     test_pkg_config "$@" &&
1444         eval add_cflags \$${name}_cflags
1445 }
1446
1447 test_exec(){
1448     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1449 }
1450
1451 check_exec_crash(){
1452     log check_exec_crash "$@"
1453     code=$(cat)
1454
1455     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1456     # are safe but may not be available everywhere.  Thus we use
1457     # raise(SIGTERM) instead.  The check is run in a subshell so we
1458     # can redirect the "Terminated" message from the shell.  SIGBUS
1459     # is not defined by standard C so it is used conditionally.
1460
1461     (test_exec "$@") >> $logfile 2>&1 <<EOF
1462 #include <signal.h>
1463 static void sighandler(int sig){
1464     raise(SIGTERM);
1465 }
1466 int foo(void){
1467     $code
1468 }
1469 int (*func_ptr)(void) = foo;
1470 int main(void){
1471     signal(SIGILL, sighandler);
1472     signal(SIGFPE, sighandler);
1473     signal(SIGSEGV, sighandler);
1474 #ifdef SIGBUS
1475     signal(SIGBUS, sighandler);
1476 #endif
1477     return func_ptr();
1478 }
1479 EOF
1480 }
1481
1482 check_type(){
1483     log check_type "$@"
1484     headers=$1
1485     type=$2
1486     shift 2
1487     disable_sanitized "$type"
1488     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1489 }
1490
1491 check_struct(){
1492     log check_struct "$@"
1493     headers=$1
1494     struct=$2
1495     member=$3
1496     shift 3
1497     disable_sanitized "${struct}_${member}"
1498     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1499         enable_sanitized "${struct}_${member}"
1500 }
1501
1502 check_builtin(){
1503     log check_builtin "$@"
1504     name=$1
1505     headers=$2
1506     builtin=$3
1507     shift 3
1508     disable "$name"
1509     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1510 }
1511
1512 check_compile_assert(){
1513     log check_compile_assert "$@"
1514     name=$1
1515     headers=$2
1516     condition=$3
1517     shift 3
1518     disable "$name"
1519     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1520 }
1521
1522 check_cc(){
1523     log check_cc "$@"
1524     name=$1
1525     shift
1526     disable "$name"
1527     test_code cc "$@" && enable "$name"
1528 }
1529
1530 require(){
1531     log require "$@"
1532     name_version="$1"
1533     name="${1%% *}"
1534     shift
1535     check_lib $name "$@" || die "ERROR: $name_version not found"
1536 }
1537
1538 require_cc(){
1539     log require_cc "$@"
1540     name="$1"
1541     check_cc "$@" || die "ERROR: $name failed"
1542 }
1543
1544 require_cpp(){
1545     name="$1"
1546     headers="$2"
1547     classes="$3"
1548     shift 3
1549     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1550 }
1551
1552 require_headers(){
1553     log require_headers "$@"
1554     headers="$1"
1555     check_headers "$@" || die "ERROR: $headers not found"
1556 }
1557
1558 require_cpp_condition(){
1559     log require_cpp_condition "$@"
1560     condition="$3"
1561     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1562 }
1563
1564 require_pkg_config(){
1565     log require_pkg_config "$@"
1566     pkg_version="$2"
1567     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1568 }
1569
1570 test_host_cc(){
1571     log test_host_cc "$@"
1572     cat > $TMPC
1573     log_file $TMPC
1574     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1575 }
1576
1577 test_host_cpp(){
1578     log test_host_cpp "$@"
1579     cat > $TMPC
1580     log_file $TMPC
1581     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1582 }
1583
1584 check_host_cppflags(){
1585     log check_host_cppflags "$@"
1586     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1587 #include <stdlib.h>
1588 EOF
1589 }
1590
1591 check_host_cflags(){
1592     log check_host_cflags "$@"
1593     set -- $($host_cflags_filter "$@")
1594     test_host_cc "$@" <<EOF && append host_cflags "$@"
1595 int x;
1596 EOF
1597 }
1598
1599 test_host_cpp_condition(){
1600     log test_host_cpp_condition "$@"
1601     header=$1
1602     condition=$2
1603     shift 2
1604     test_host_cpp "$@" <<EOF
1605 #include <$header>
1606 #if !($condition)
1607 #error "unsatisfied condition: $condition"
1608 #endif
1609 EOF
1610 }
1611
1612 check_host_cpp_condition(){
1613     log check_host_cpp_condition "$@"
1614     name=$1
1615     shift 1
1616     disable $name
1617     test_host_cpp_condition "$@" && enable $name
1618 }
1619
1620 cp_if_changed(){
1621     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1622     mkdir -p "$(dirname $2)"
1623     cp -f "$1" "$2"
1624 }
1625
1626 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1627 # system-dependent things.
1628
1629 AVCODEC_COMPONENTS="
1630     bsfs
1631     decoders
1632     encoders
1633     hwaccels
1634     parsers
1635 "
1636
1637 AVDEVICE_COMPONENTS="
1638     indevs
1639     outdevs
1640 "
1641
1642 AVFILTER_COMPONENTS="
1643     filters
1644 "
1645
1646 AVFORMAT_COMPONENTS="
1647     demuxers
1648     muxers
1649     protocols
1650 "
1651
1652 COMPONENT_LIST="
1653     $AVCODEC_COMPONENTS
1654     $AVDEVICE_COMPONENTS
1655     $AVFILTER_COMPONENTS
1656     $AVFORMAT_COMPONENTS
1657 "
1658
1659 EXAMPLE_LIST="
1660     avio_dir_cmd_example
1661     avio_reading_example
1662     decode_audio_example
1663     decode_video_example
1664     demuxing_decoding_example
1665     encode_audio_example
1666     encode_video_example
1667     extract_mvs_example
1668     filter_audio_example
1669     filtering_audio_example
1670     filtering_video_example
1671     http_multiclient_example
1672     hw_decode_example
1673     metadata_example
1674     muxing_example
1675     qsvdec_example
1676     remuxing_example
1677     resampling_audio_example
1678     scaling_video_example
1679     transcode_aac_example
1680     transcoding_example
1681     vaapi_encode_example
1682     vaapi_transcode_example
1683 "
1684
1685 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1686     alsa
1687     appkit
1688     avfoundation
1689     bzlib
1690     coreimage
1691     iconv
1692     libxcb
1693     libxcb_shm
1694     libxcb_shape
1695     libxcb_xfixes
1696     lzma
1697     schannel
1698     sdl2
1699     securetransport
1700     sndio
1701     xlib
1702     zlib
1703 "
1704
1705 EXTERNAL_LIBRARY_GPL_LIST="
1706     avisynth
1707     frei0r
1708     libcdio
1709     libdavs2
1710     librubberband
1711     libvidstab
1712     libx264
1713     libx265
1714     libxavs
1715     libxavs2
1716     libxvid
1717 "
1718
1719 EXTERNAL_LIBRARY_NONFREE_LIST="
1720     decklink
1721     libfdk_aac
1722     openssl
1723     libtls
1724 "
1725
1726 EXTERNAL_LIBRARY_VERSION3_LIST="
1727     gmp
1728     libaribb24
1729     liblensfun
1730     libopencore_amrnb
1731     libopencore_amrwb
1732     libvmaf
1733     libvo_amrwbenc
1734     mbedtls
1735     rkmpp
1736 "
1737
1738 EXTERNAL_LIBRARY_GPLV3_LIST="
1739     libsmbclient
1740 "
1741
1742 EXTERNAL_LIBRARY_LIST="
1743     $EXTERNAL_LIBRARY_GPL_LIST
1744     $EXTERNAL_LIBRARY_NONFREE_LIST
1745     $EXTERNAL_LIBRARY_VERSION3_LIST
1746     $EXTERNAL_LIBRARY_GPLV3_LIST
1747     chromaprint
1748     gcrypt
1749     gnutls
1750     jni
1751     ladspa
1752     libaom
1753     libass
1754     libbluray
1755     libbs2b
1756     libcaca
1757     libcelt
1758     libcodec2
1759     libdav1d
1760     libdc1394
1761     libdrm
1762     libflite
1763     libfontconfig
1764     libfreetype
1765     libfribidi
1766     libgme
1767     libgsm
1768     libiec61883
1769     libilbc
1770     libjack
1771     libklvanc
1772     libkvazaar
1773     libmodplug
1774     libmp3lame
1775     libmysofa
1776     libopencv
1777     libopenh264
1778     libopenjpeg
1779     libopenmpt
1780     libopus
1781     libpulse
1782     librsvg
1783     librtmp
1784     libshine
1785     libsmbclient
1786     libsnappy
1787     libsoxr
1788     libspeex
1789     libsrt
1790     libssh
1791     libtensorflow
1792     libtesseract
1793     libtheora
1794     libtwolame
1795     libv4l2
1796     libvorbis
1797     libvpx
1798     libwavpack
1799     libwebp
1800     libxml2
1801     libzimg
1802     libzmq
1803     libzvbi
1804     lv2
1805     mediacodec
1806     openal
1807     opengl
1808     pocketsphinx
1809     vapoursynth
1810 "
1811
1812 HWACCEL_AUTODETECT_LIBRARY_LIST="
1813     amf
1814     audiotoolbox
1815     crystalhd
1816     cuda
1817     cuvid
1818     d3d11va
1819     dxva2
1820     ffnvcodec
1821     nvdec
1822     nvenc
1823     vaapi
1824     vdpau
1825     videotoolbox
1826     v4l2_m2m
1827     xvmc
1828 "
1829
1830 # catchall list of things that require external libs to link
1831 EXTRALIBS_LIST="
1832     cpu_init
1833     cws2fws
1834 "
1835
1836 HWACCEL_LIBRARY_NONFREE_LIST="
1837     cuda_nvcc
1838     cuda_sdk
1839     libnpp
1840 "
1841
1842 HWACCEL_LIBRARY_LIST="
1843     $HWACCEL_LIBRARY_NONFREE_LIST
1844     libmfx
1845     mmal
1846     omx
1847     opencl
1848 "
1849
1850 DOCUMENT_LIST="
1851     doc
1852     htmlpages
1853     manpages
1854     podpages
1855     txtpages
1856 "
1857
1858 FEATURE_LIST="
1859     ftrapv
1860     gray
1861     hardcoded_tables
1862     omx_rpi
1863     runtime_cpudetect
1864     safe_bitstream_reader
1865     shared
1866     small
1867     static
1868     swscale_alpha
1869 "
1870
1871 # this list should be kept in linking order
1872 LIBRARY_LIST="
1873     avdevice
1874     avfilter
1875     swscale
1876     postproc
1877     avformat
1878     avcodec
1879     swresample
1880     avresample
1881     avutil
1882 "
1883
1884 LICENSE_LIST="
1885     gpl
1886     nonfree
1887     version3
1888 "
1889
1890 PROGRAM_LIST="
1891     ffplay
1892     ffprobe
1893     ffmpeg
1894 "
1895
1896 SUBSYSTEM_LIST="
1897     dct
1898     dwt
1899     error_resilience
1900     faan
1901     fast_unaligned
1902     fft
1903     lsp
1904     lzo
1905     mdct
1906     pixelutils
1907     network
1908     rdft
1909 "
1910
1911 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1912 CONFIG_LIST="
1913     $DOCUMENT_LIST
1914     $EXAMPLE_LIST
1915     $EXTERNAL_LIBRARY_LIST
1916     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1917     $HWACCEL_LIBRARY_LIST
1918     $HWACCEL_AUTODETECT_LIBRARY_LIST
1919     $FEATURE_LIST
1920     $LICENSE_LIST
1921     $LIBRARY_LIST
1922     $PROGRAM_LIST
1923     $SUBSYSTEM_LIST
1924     autodetect
1925     fontconfig
1926     linux_perf
1927     memory_poisoning
1928     neon_clobber_test
1929     ossfuzz
1930     pic
1931     thumb
1932     valgrind_backtrace
1933     xmm_clobber_test
1934     $COMPONENT_LIST
1935 "
1936
1937 THREADS_LIST="
1938     pthreads
1939     os2threads
1940     w32threads
1941 "
1942
1943 ATOMICS_LIST="
1944     atomics_gcc
1945     atomics_suncc
1946     atomics_win32
1947 "
1948
1949 AUTODETECT_LIBS="
1950     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1951     $HWACCEL_AUTODETECT_LIBRARY_LIST
1952     $THREADS_LIST
1953 "
1954
1955 ARCH_LIST="
1956     aarch64
1957     alpha
1958     arm
1959     avr32
1960     avr32_ap
1961     avr32_uc
1962     bfin
1963     ia64
1964     m68k
1965     mips
1966     mips64
1967     parisc
1968     ppc
1969     ppc64
1970     s390
1971     sh4
1972     sparc
1973     sparc64
1974     tilegx
1975     tilepro
1976     tomi
1977     x86
1978     x86_32
1979     x86_64
1980 "
1981
1982 ARCH_EXT_LIST_ARM="
1983     armv5te
1984     armv6
1985     armv6t2
1986     armv8
1987     neon
1988     vfp
1989     vfpv3
1990     setend
1991 "
1992
1993 ARCH_EXT_LIST_MIPS="
1994     mipsfpu
1995     mips32r2
1996     mips32r5
1997     mips64r2
1998     mips32r6
1999     mips64r6
2000     mipsdsp
2001     mipsdspr2
2002     msa
2003     msa2
2004 "
2005
2006 ARCH_EXT_LIST_LOONGSON="
2007     loongson2
2008     loongson3
2009     mmi
2010 "
2011
2012 ARCH_EXT_LIST_X86_SIMD="
2013     aesni
2014     amd3dnow
2015     amd3dnowext
2016     avx
2017     avx2
2018     avx512
2019     fma3
2020     fma4
2021     mmx
2022     mmxext
2023     sse
2024     sse2
2025     sse3
2026     sse4
2027     sse42
2028     ssse3
2029     xop
2030 "
2031
2032 ARCH_EXT_LIST_PPC="
2033     altivec
2034     dcbzl
2035     ldbrx
2036     power8
2037     ppc4xx
2038     vsx
2039 "
2040
2041 ARCH_EXT_LIST_X86="
2042     $ARCH_EXT_LIST_X86_SIMD
2043     cpunop
2044     i686
2045 "
2046
2047 ARCH_EXT_LIST="
2048     $ARCH_EXT_LIST_ARM
2049     $ARCH_EXT_LIST_PPC
2050     $ARCH_EXT_LIST_X86
2051     $ARCH_EXT_LIST_MIPS
2052     $ARCH_EXT_LIST_LOONGSON
2053 "
2054
2055 ARCH_FEATURES="
2056     aligned_stack
2057     fast_64bit
2058     fast_clz
2059     fast_cmov
2060     local_aligned
2061     simd_align_16
2062     simd_align_32
2063     simd_align_64
2064 "
2065
2066 BUILTIN_LIST="
2067     atomic_cas_ptr
2068     machine_rw_barrier
2069     MemoryBarrier
2070     mm_empty
2071     rdtsc
2072     sem_timedwait
2073     sync_val_compare_and_swap
2074 "
2075 HAVE_LIST_CMDLINE="
2076     inline_asm
2077     symver
2078     x86asm
2079 "
2080
2081 HAVE_LIST_PUB="
2082     bigendian
2083     fast_unaligned
2084 "
2085
2086 HEADERS_LIST="
2087     arpa_inet_h
2088     asm_types_h
2089     cdio_paranoia_h
2090     cdio_paranoia_paranoia_h
2091     cuda_h
2092     dispatch_dispatch_h
2093     dev_bktr_ioctl_bt848_h
2094     dev_bktr_ioctl_meteor_h
2095     dev_ic_bt8xx_h
2096     dev_video_bktr_ioctl_bt848_h
2097     dev_video_meteor_ioctl_meteor_h
2098     direct_h
2099     dirent_h
2100     dxgidebug_h
2101     dxva_h
2102     ES2_gl_h
2103     gsm_h
2104     io_h
2105     linux_perf_event_h
2106     machine_ioctl_bt848_h
2107     machine_ioctl_meteor_h
2108     malloc_h
2109     opencv2_core_core_c_h
2110     OpenGL_gl3_h
2111     poll_h
2112     sys_param_h
2113     sys_resource_h
2114     sys_select_h
2115     sys_soundcard_h
2116     sys_time_h
2117     sys_un_h
2118     sys_videoio_h
2119     termios_h
2120     udplite_h
2121     unistd_h
2122     valgrind_valgrind_h
2123     windows_h
2124     winsock2_h
2125 "
2126
2127 INTRINSICS_LIST="
2128     intrinsics_neon
2129 "
2130
2131 COMPLEX_FUNCS="
2132     cabs
2133     cexp
2134 "
2135
2136 MATH_FUNCS="
2137     atanf
2138     atan2f
2139     cbrt
2140     cbrtf
2141     copysign
2142     cosf
2143     erf
2144     exp2
2145     exp2f
2146     expf
2147     hypot
2148     isfinite
2149     isinf
2150     isnan
2151     ldexpf
2152     llrint
2153     llrintf
2154     log2
2155     log2f
2156     log10f
2157     lrint
2158     lrintf
2159     powf
2160     rint
2161     round
2162     roundf
2163     sinf
2164     trunc
2165     truncf
2166 "
2167
2168 SYSTEM_FEATURES="
2169     dos_paths
2170     libc_msvcrt
2171     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2172     section_data_rel_ro
2173     threads
2174     uwp
2175     winrt
2176 "
2177
2178 SYSTEM_FUNCS="
2179     access
2180     aligned_malloc
2181     arc4random
2182     clock_gettime
2183     closesocket
2184     CommandLineToArgvW
2185     fcntl
2186     getaddrinfo
2187     gethrtime
2188     getopt
2189     GetProcessAffinityMask
2190     GetProcessMemoryInfo
2191     GetProcessTimes
2192     getrusage
2193     GetSystemTimeAsFileTime
2194     gettimeofday
2195     glob
2196     glXGetProcAddress
2197     gmtime_r
2198     inet_aton
2199     isatty
2200     kbhit
2201     localtime_r
2202     lstat
2203     lzo1x_999_compress
2204     mach_absolute_time
2205     MapViewOfFile
2206     memalign
2207     mkstemp
2208     mmap
2209     mprotect
2210     nanosleep
2211     PeekNamedPipe
2212     posix_memalign
2213     pthread_cancel
2214     sched_getaffinity
2215     SecItemImport
2216     SetConsoleTextAttribute
2217     SetConsoleCtrlHandler
2218     setmode
2219     setrlimit
2220     Sleep
2221     strerror_r
2222     sysconf
2223     sysctl
2224     usleep
2225     UTGetOSTypeFromString
2226     VirtualAlloc
2227     wglGetProcAddress
2228 "
2229
2230 SYSTEM_LIBRARIES="
2231     bcrypt
2232     vaapi_drm
2233     vaapi_x11
2234     vdpau_x11
2235 "
2236
2237 TOOLCHAIN_FEATURES="
2238     as_arch_directive
2239     as_dn_directive
2240     as_fpu_directive
2241     as_func
2242     as_object_arch
2243     asm_mod_q
2244     blocks_extension
2245     ebp_available
2246     ebx_available
2247     gnu_as
2248     gnu_windres
2249     ibm_asm
2250     inline_asm_direct_symbol_refs
2251     inline_asm_labels
2252     inline_asm_nonlocal_labels
2253     pragma_deprecated
2254     rsync_contimeout
2255     symver_asm_label
2256     symver_gnu_asm
2257     vfp_args
2258     xform_asm
2259     xmm_clobbers
2260 "
2261
2262 TYPES_LIST="
2263     kCMVideoCodecType_HEVC
2264     kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
2265     socklen_t
2266     struct_addrinfo
2267     struct_group_source_req
2268     struct_ip_mreq_source
2269     struct_ipv6_mreq
2270     struct_msghdr_msg_flags
2271     struct_pollfd
2272     struct_rusage_ru_maxrss
2273     struct_sctp_event_subscribe
2274     struct_sockaddr_in6
2275     struct_sockaddr_sa_len
2276     struct_sockaddr_storage
2277     struct_stat_st_mtim_tv_nsec
2278     struct_v4l2_frmivalenum_discrete
2279 "
2280
2281 HAVE_LIST="
2282     $ARCH_EXT_LIST
2283     $(add_suffix _external $ARCH_EXT_LIST)
2284     $(add_suffix _inline   $ARCH_EXT_LIST)
2285     $ARCH_FEATURES
2286     $BUILTIN_LIST
2287     $COMPLEX_FUNCS
2288     $HAVE_LIST_CMDLINE
2289     $HAVE_LIST_PUB
2290     $HEADERS_LIST
2291     $INTRINSICS_LIST
2292     $MATH_FUNCS
2293     $SYSTEM_FEATURES
2294     $SYSTEM_FUNCS
2295     $SYSTEM_LIBRARIES
2296     $THREADS_LIST
2297     $TOOLCHAIN_FEATURES
2298     $TYPES_LIST
2299     makeinfo
2300     makeinfo_html
2301     opencl_d3d11
2302     opencl_drm_arm
2303     opencl_drm_beignet
2304     opencl_dxva2
2305     opencl_vaapi_beignet
2306     opencl_vaapi_intel_media
2307     perl
2308     pod2man
2309     texi2html
2310 "
2311
2312 # options emitted with CONFIG_ prefix but not available on the command line
2313 CONFIG_EXTRA="
2314     aandcttables
2315     ac3dsp
2316     adts_header
2317     audio_frame_queue
2318     audiodsp
2319     blockdsp
2320     bswapdsp
2321     cabac
2322     cbs
2323     cbs_av1
2324     cbs_h264
2325     cbs_h265
2326     cbs_jpeg
2327     cbs_mpeg2
2328     cbs_vp9
2329     dirac_parse
2330     dnn
2331     dvprofile
2332     exif
2333     faandct
2334     faanidct
2335     fdctdsp
2336     flacdsp
2337     fmtconvert
2338     frame_thread_encoder
2339     g722dsp
2340     golomb
2341     gplv3
2342     h263dsp
2343     h264chroma
2344     h264dsp
2345     h264parse
2346     h264pred
2347     h264qpel
2348     hevcparse
2349     hpeldsp
2350     huffman
2351     huffyuvdsp
2352     huffyuvencdsp
2353     idctdsp
2354     iirfilter
2355     mdct15
2356     intrax8
2357     iso_media
2358     ividsp
2359     jpegtables
2360     lgplv3
2361     libx262
2362     llauddsp
2363     llviddsp
2364     llvidencdsp
2365     lpc
2366     lzf
2367     me_cmp
2368     mpeg_er
2369     mpegaudio
2370     mpegaudiodsp
2371     mpegaudioheader
2372     mpegvideo
2373     mpegvideoenc
2374     mss34dsp
2375     pixblockdsp
2376     qpeldsp
2377     qsv
2378     qsvdec
2379     qsvenc
2380     qsvvpp
2381     rangecoder
2382     riffdec
2383     riffenc
2384     rtpdec
2385     rtpenc_chain
2386     rv34dsp
2387     scene_sad
2388     sinewin
2389     snappy
2390     srtp
2391     startcode
2392     texturedsp
2393     texturedspenc
2394     tpeldsp
2395     vaapi_1
2396     vaapi_encode
2397     vc1dsp
2398     videodsp
2399     vp3dsp
2400     vp56dsp
2401     vp8dsp
2402     wma_freqs
2403     wmv2dsp
2404 "
2405
2406 CMDLINE_SELECT="
2407     $ARCH_EXT_LIST
2408     $CONFIG_LIST
2409     $HAVE_LIST_CMDLINE
2410     $THREADS_LIST
2411     asm
2412     cross_compile
2413     debug
2414     extra_warnings
2415     logging
2416     lto
2417     optimizations
2418     rpath
2419     stripping
2420 "
2421
2422 PATHS_LIST="
2423     bindir
2424     datadir
2425     docdir
2426     incdir
2427     libdir
2428     mandir
2429     pkgconfigdir
2430     prefix
2431     shlibdir
2432     install_name_dir
2433 "
2434
2435 CMDLINE_SET="
2436     $PATHS_LIST
2437     ar
2438     arch
2439     as
2440     assert_level
2441     build_suffix
2442     cc
2443     objcc
2444     cpu
2445     cross_prefix
2446     custom_allocator
2447     cxx
2448     dep_cc
2449     doxygen
2450     env
2451     extra_version
2452     gas
2453     host_cc
2454     host_cflags
2455     host_extralibs
2456     host_ld
2457     host_ldflags
2458     host_os
2459     ignore_tests
2460     install
2461     ld
2462     ln_s
2463     logfile
2464     malloc_prefix
2465     nm
2466     optflags
2467     nvcc
2468     nvccflags
2469     pkg_config
2470     pkg_config_flags
2471     progs_suffix
2472     random_seed
2473     ranlib
2474     samples
2475     strip
2476     sws_max_filter_size
2477     sysinclude
2478     sysroot
2479     target_exec
2480     target_os
2481     target_path
2482     target_samples
2483     tempprefix
2484     toolchain
2485     valgrind
2486     windres
2487     x86asmexe
2488 "
2489
2490 CMDLINE_APPEND="
2491     extra_cflags
2492     extra_cxxflags
2493     extra_objcflags
2494     host_cppflags
2495 "
2496
2497 # code dependency declarations
2498
2499 # architecture extensions
2500
2501 armv5te_deps="arm"
2502 armv6_deps="arm"
2503 armv6t2_deps="arm"
2504 armv8_deps="aarch64"
2505 neon_deps_any="aarch64 arm"
2506 intrinsics_neon_deps="neon"
2507 vfp_deps_any="aarch64 arm"
2508 vfpv3_deps="vfp"
2509 setend_deps="arm"
2510
2511 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2512
2513 altivec_deps="ppc"
2514 dcbzl_deps="ppc"
2515 ldbrx_deps="ppc"
2516 ppc4xx_deps="ppc"
2517 vsx_deps="altivec"
2518 power8_deps="vsx"
2519
2520 loongson2_deps="mips"
2521 loongson3_deps="mips"
2522 mips32r2_deps="mips"
2523 mips32r5_deps="mips"
2524 mips32r6_deps="mips"
2525 mips64r2_deps="mips"
2526 mips64r6_deps="mips"
2527 mipsfpu_deps="mips"
2528 mipsdsp_deps="mips"
2529 mipsdspr2_deps="mips"
2530 mmi_deps="mips"
2531 msa_deps="mipsfpu"
2532 msa2_deps="msa"
2533
2534 cpunop_deps="i686"
2535 x86_64_select="i686"
2536 x86_64_suggest="fast_cmov"
2537
2538 amd3dnow_deps="mmx"
2539 amd3dnowext_deps="amd3dnow"
2540 i686_deps="x86"
2541 mmx_deps="x86"
2542 mmxext_deps="mmx"
2543 sse_deps="mmxext"
2544 sse2_deps="sse"
2545 sse3_deps="sse2"
2546 ssse3_deps="sse3"
2547 sse4_deps="ssse3"
2548 sse42_deps="sse4"
2549 aesni_deps="sse42"
2550 avx_deps="sse42"
2551 xop_deps="avx"
2552 fma3_deps="avx"
2553 fma4_deps="avx"
2554 avx2_deps="avx"
2555 avx512_deps="avx2"
2556
2557 mmx_external_deps="x86asm"
2558 mmx_inline_deps="inline_asm x86"
2559 mmx_suggest="mmx_external mmx_inline"
2560
2561 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2562     eval dep=\$${ext}_deps
2563     eval ${ext}_external_deps='"${dep}_external"'
2564     eval ${ext}_inline_deps='"${dep}_inline"'
2565     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2566 done
2567
2568 aligned_stack_if_any="aarch64 ppc x86"
2569 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2570 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2571 fast_unaligned_if_any="aarch64 ppc x86"
2572 simd_align_16_if_any="altivec neon sse"
2573 simd_align_32_if_any="avx"
2574 simd_align_64_if_any="avx512"
2575
2576 # system capabilities
2577 linux_perf_deps="linux_perf_event_h"
2578 symver_if_any="symver_asm_label symver_gnu_asm"
2579 valgrind_backtrace_conflict="optimizations"
2580 valgrind_backtrace_deps="valgrind_valgrind_h"
2581
2582 # threading support
2583 atomics_gcc_if="sync_val_compare_and_swap"
2584 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2585 atomics_win32_if="MemoryBarrier"
2586 atomics_native_if_any="$ATOMICS_LIST"
2587 w32threads_deps="atomics_native"
2588 threads_if_any="$THREADS_LIST"
2589
2590 # subsystems
2591 cbs_av1_select="cbs"
2592 cbs_h264_select="cbs"
2593 cbs_h265_select="cbs"
2594 cbs_jpeg_select="cbs"
2595 cbs_mpeg2_select="cbs"
2596 cbs_vp9_select="cbs"
2597 dct_select="rdft"
2598 dirac_parse_select="golomb"
2599 dnn_suggest="libtensorflow"
2600 error_resilience_select="me_cmp"
2601 faandct_deps="faan"
2602 faandct_select="fdctdsp"
2603 faanidct_deps="faan"
2604 faanidct_select="idctdsp"
2605 h264dsp_select="startcode"
2606 hevcparse_select="golomb"
2607 frame_thread_encoder_deps="encoders threads"
2608 intrax8_select="blockdsp idctdsp"
2609 mdct_select="fft"
2610 mdct15_select="fft"
2611 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2612 mpeg_er_select="error_resilience"
2613 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2614 mpegaudiodsp_select="dct"
2615 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2616 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2617 vc1dsp_select="h264chroma qpeldsp startcode"
2618 rdft_select="fft"
2619
2620 # decoders / encoders
2621 aac_decoder_select="adts_header mdct15 mdct sinewin"
2622 aac_fixed_decoder_select="adts_header mdct sinewin"
2623 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2624 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2625 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2626 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2627 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2628 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2629 adpcm_g722_decoder_select="g722dsp"
2630 adpcm_g722_encoder_select="g722dsp"
2631 aic_decoder_select="golomb idctdsp"
2632 alac_encoder_select="lpc"
2633 als_decoder_select="bswapdsp"
2634 amrnb_decoder_select="lsp"
2635 amrwb_decoder_select="lsp"
2636 amv_decoder_select="sp5x_decoder exif"
2637 amv_encoder_select="jpegtables mpegvideoenc"
2638 ape_decoder_select="bswapdsp llauddsp"
2639 apng_decoder_deps="zlib"
2640 apng_encoder_deps="zlib"
2641 apng_encoder_select="llvidencdsp"
2642 aptx_decoder_select="audio_frame_queue"
2643 aptx_encoder_select="audio_frame_queue"
2644 aptx_hd_decoder_select="audio_frame_queue"
2645 aptx_hd_encoder_select="audio_frame_queue"
2646 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2647 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2648 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2649 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2650 atrac1_decoder_select="mdct sinewin"
2651 atrac3_decoder_select="mdct"
2652 atrac3p_decoder_select="mdct sinewin"
2653 atrac9_decoder_select="mdct"
2654 avrn_decoder_select="exif jpegtables"
2655 bink_decoder_select="blockdsp hpeldsp"
2656 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2657 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2658 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2659 clearvideo_decoder_select="idctdsp"
2660 cllc_decoder_select="bswapdsp"
2661 comfortnoise_encoder_select="lpc"
2662 cook_decoder_select="audiodsp mdct sinewin"
2663 cscd_decoder_select="lzo"
2664 cscd_decoder_suggest="zlib"
2665 dca_decoder_select="mdct"
2666 dds_decoder_select="texturedsp"
2667 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2668 dnxhd_decoder_select="blockdsp idctdsp"
2669 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2670 dolby_e_decoder_select="mdct"
2671 dvvideo_decoder_select="dvprofile idctdsp"
2672 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2673 dxa_decoder_deps="zlib"
2674 dxv_decoder_select="lzf texturedsp"
2675 eac3_decoder_select="ac3_decoder"
2676 eac3_encoder_select="ac3_encoder"
2677 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2678 eatgq_decoder_select="aandcttables"
2679 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2680 exr_decoder_deps="zlib"
2681 ffv1_decoder_select="rangecoder"
2682 ffv1_encoder_select="rangecoder"
2683 ffvhuff_decoder_select="huffyuv_decoder"
2684 ffvhuff_encoder_select="huffyuv_encoder"
2685 fic_decoder_select="golomb"
2686 flac_decoder_select="flacdsp"
2687 flac_encoder_select="bswapdsp flacdsp lpc"
2688 flashsv2_decoder_deps="zlib"
2689 flashsv2_encoder_deps="zlib"
2690 flashsv_decoder_deps="zlib"
2691 flashsv_encoder_deps="zlib"
2692 flv_decoder_select="h263_decoder"
2693 flv_encoder_select="h263_encoder"
2694 fourxm_decoder_select="blockdsp bswapdsp"
2695 fraps_decoder_select="bswapdsp huffman"
2696 g2m_decoder_deps="zlib"
2697 g2m_decoder_select="blockdsp idctdsp jpegtables"
2698 g729_decoder_select="audiodsp"
2699 h261_decoder_select="mpegvideo"
2700 h261_encoder_select="mpegvideoenc"
2701 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2702 h263_encoder_select="h263dsp mpegvideoenc"
2703 h263i_decoder_select="h263_decoder"
2704 h263p_decoder_select="h263_decoder"
2705 h263p_encoder_select="h263_encoder"
2706 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2707 h264_decoder_suggest="error_resilience"
2708 hap_decoder_select="snappy texturedsp"
2709 hap_encoder_deps="libsnappy"
2710 hap_encoder_select="texturedspenc"
2711 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2712 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2713 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2714 hymt_decoder_select="huffyuv_decoder"
2715 iac_decoder_select="imc_decoder"
2716 imc_decoder_select="bswapdsp fft mdct sinewin"
2717 indeo3_decoder_select="hpeldsp"
2718 indeo4_decoder_select="ividsp"
2719 indeo5_decoder_select="ividsp"
2720 interplay_video_decoder_select="hpeldsp"
2721 jpegls_decoder_select="mjpeg_decoder"
2722 jv_decoder_select="blockdsp"
2723 lagarith_decoder_select="llviddsp"
2724 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2725 lscr_decoder_deps="zlib"
2726 magicyuv_decoder_select="llviddsp"
2727 magicyuv_encoder_select="llvidencdsp"
2728 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2729 metasound_decoder_select="lsp mdct sinewin"
2730 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2731 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2732 mjpeg_encoder_select="jpegtables mpegvideoenc"
2733 mjpegb_decoder_select="mjpeg_decoder"
2734 mlp_decoder_select="mlp_parser"
2735 mlp_encoder_select="lpc audio_frame_queue"
2736 motionpixels_decoder_select="bswapdsp"
2737 mp1_decoder_select="mpegaudio"
2738 mp1float_decoder_select="mpegaudio"
2739 mp2_decoder_select="mpegaudio"
2740 mp2float_decoder_select="mpegaudio"
2741 mp3_decoder_select="mpegaudio"
2742 mp3adu_decoder_select="mpegaudio"
2743 mp3adufloat_decoder_select="mpegaudio"
2744 mp3float_decoder_select="mpegaudio"
2745 mp3on4_decoder_select="mpegaudio"
2746 mp3on4float_decoder_select="mpegaudio"
2747 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2748 mpc8_decoder_select="mpegaudiodsp"
2749 mpegvideo_decoder_select="mpegvideo"
2750 mpeg1video_decoder_select="mpegvideo"
2751 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2752 mpeg2video_decoder_select="mpegvideo"
2753 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2754 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2755 mpeg4_encoder_select="h263_encoder"
2756 msa1_decoder_select="mss34dsp"
2757 mscc_decoder_deps="zlib"
2758 msmpeg4v1_decoder_select="h263_decoder"
2759 msmpeg4v2_decoder_select="h263_decoder"
2760 msmpeg4v2_encoder_select="h263_encoder"
2761 msmpeg4v3_decoder_select="h263_decoder"
2762 msmpeg4v3_encoder_select="h263_encoder"
2763 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2764 mts2_decoder_select="mss34dsp"
2765 mwsc_decoder_deps="zlib"
2766 mxpeg_decoder_select="mjpeg_decoder"
2767 nellymoser_decoder_select="mdct sinewin"
2768 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2769 nuv_decoder_select="idctdsp lzo"
2770 on2avc_decoder_select="mdct"
2771 opus_decoder_deps="swresample"
2772 opus_decoder_select="mdct15"
2773 opus_encoder_select="audio_frame_queue mdct15"
2774 png_decoder_deps="zlib"
2775 png_encoder_deps="zlib"
2776 png_encoder_select="llvidencdsp"
2777 prores_decoder_select="blockdsp idctdsp"
2778 prores_encoder_select="fdctdsp"
2779 qcelp_decoder_select="lsp"
2780 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2781 ra_144_decoder_select="audiodsp"
2782 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2783 ralf_decoder_select="golomb"
2784 rasc_decoder_deps="zlib"
2785 rawvideo_decoder_select="bswapdsp"
2786 rscc_decoder_deps="zlib"
2787 rtjpeg_decoder_select="me_cmp"
2788 rv10_decoder_select="h263_decoder"
2789 rv10_encoder_select="h263_encoder"
2790 rv20_decoder_select="h263_decoder"
2791 rv20_encoder_select="h263_encoder"
2792 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2793 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2794 screenpresso_decoder_deps="zlib"
2795 shorten_decoder_select="bswapdsp"
2796 sipr_decoder_select="lsp"
2797 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2798 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2799 sonic_decoder_select="golomb rangecoder"
2800 sonic_encoder_select="golomb rangecoder"
2801 sonic_ls_encoder_select="golomb rangecoder"
2802 sp5x_decoder_select="mjpeg_decoder"
2803 speedhq_decoder_select="mpegvideo"
2804 srgc_decoder_deps="zlib"
2805 svq1_decoder_select="hpeldsp"
2806 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2807 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2808 svq3_decoder_suggest="zlib"
2809 tak_decoder_select="audiodsp"
2810 tdsc_decoder_deps="zlib"
2811 tdsc_decoder_select="mjpeg_decoder"
2812 theora_decoder_select="vp3_decoder"
2813 thp_decoder_select="mjpeg_decoder"
2814 tiff_decoder_suggest="zlib lzma"
2815 tiff_encoder_suggest="zlib"
2816 truehd_decoder_select="mlp_parser"
2817 truehd_encoder_select="lpc audio_frame_queue"
2818 truemotion2_decoder_select="bswapdsp"
2819 truespeech_decoder_select="bswapdsp"
2820 tscc_decoder_deps="zlib"
2821 twinvq_decoder_select="mdct lsp sinewin"
2822 txd_decoder_select="texturedsp"
2823 utvideo_decoder_select="bswapdsp llviddsp"
2824 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2825 vble_decoder_select="llviddsp"
2826 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2827 vc1image_decoder_select="vc1_decoder"
2828 vorbis_decoder_select="mdct"
2829 vorbis_encoder_select="audio_frame_queue mdct"
2830 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2831 vp4_decoder_select="vp3_decoder"
2832 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2833 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2834 vp6a_decoder_select="vp6_decoder"
2835 vp6f_decoder_select="vp6_decoder"
2836 vp7_decoder_select="h264pred videodsp vp8dsp"
2837 vp8_decoder_select="h264pred videodsp vp8dsp"
2838 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2839 wcmv_decoder_deps="zlib"
2840 webp_decoder_select="vp8_decoder exif"
2841 wmalossless_decoder_select="llauddsp"
2842 wmapro_decoder_select="mdct sinewin wma_freqs"
2843 wmav1_decoder_select="mdct sinewin wma_freqs"
2844 wmav1_encoder_select="mdct sinewin wma_freqs"
2845 wmav2_decoder_select="mdct sinewin wma_freqs"
2846 wmav2_encoder_select="mdct sinewin wma_freqs"
2847 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2848 wmv1_decoder_select="h263_decoder"
2849 wmv1_encoder_select="h263_encoder"
2850 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2851 wmv2_encoder_select="h263_encoder wmv2dsp"
2852 wmv3_decoder_select="vc1_decoder"
2853 wmv3image_decoder_select="wmv3_decoder"
2854 xma1_decoder_select="wmapro_decoder"
2855 xma2_decoder_select="wmapro_decoder"
2856 zerocodec_decoder_deps="zlib"
2857 zlib_decoder_deps="zlib"
2858 zlib_encoder_deps="zlib"
2859 zmbv_decoder_deps="zlib"
2860 zmbv_encoder_deps="zlib"
2861
2862 # hardware accelerators
2863 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2864 cuda_deps="ffnvcodec"
2865 cuvid_deps="ffnvcodec"
2866 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2867 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2868 ffnvcodec_deps_any="libdl LoadLibrary"
2869 nvdec_deps="ffnvcodec"
2870 vaapi_x11_deps="xlib"
2871 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2872 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2873 xvmc_deps="X11_extensions_XvMClib_h"
2874
2875 h263_vaapi_hwaccel_deps="vaapi"
2876 h263_vaapi_hwaccel_select="h263_decoder"
2877 h263_videotoolbox_hwaccel_deps="videotoolbox"
2878 h263_videotoolbox_hwaccel_select="h263_decoder"
2879 h264_d3d11va_hwaccel_deps="d3d11va"
2880 h264_d3d11va_hwaccel_select="h264_decoder"
2881 h264_d3d11va2_hwaccel_deps="d3d11va"
2882 h264_d3d11va2_hwaccel_select="h264_decoder"
2883 h264_dxva2_hwaccel_deps="dxva2"
2884 h264_dxva2_hwaccel_select="h264_decoder"
2885 h264_nvdec_hwaccel_deps="nvdec"
2886 h264_nvdec_hwaccel_select="h264_decoder"
2887 h264_vaapi_hwaccel_deps="vaapi"
2888 h264_vaapi_hwaccel_select="h264_decoder"
2889 h264_vdpau_hwaccel_deps="vdpau"
2890 h264_vdpau_hwaccel_select="h264_decoder"
2891 h264_videotoolbox_hwaccel_deps="videotoolbox"
2892 h264_videotoolbox_hwaccel_select="h264_decoder"
2893 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2894 hevc_d3d11va_hwaccel_select="hevc_decoder"
2895 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2896 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2897 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2898 hevc_dxva2_hwaccel_select="hevc_decoder"
2899 hevc_nvdec_hwaccel_deps="nvdec"
2900 hevc_nvdec_hwaccel_select="hevc_decoder"
2901 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2902 hevc_vaapi_hwaccel_select="hevc_decoder"
2903 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2904 hevc_vdpau_hwaccel_select="hevc_decoder"
2905 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2906 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2907 mjpeg_nvdec_hwaccel_deps="nvdec"
2908 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2909 mjpeg_vaapi_hwaccel_deps="vaapi"
2910 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2911 mpeg_xvmc_hwaccel_deps="xvmc"
2912 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2913 mpeg1_nvdec_hwaccel_deps="nvdec"
2914 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2915 mpeg1_vdpau_hwaccel_deps="vdpau"
2916 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2917 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2918 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2919 mpeg1_xvmc_hwaccel_deps="xvmc"
2920 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2921 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2922 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2923 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2924 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2925 mpeg2_dxva2_hwaccel_deps="dxva2"
2926 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2927 mpeg2_nvdec_hwaccel_deps="nvdec"
2928 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2929 mpeg2_vaapi_hwaccel_deps="vaapi"
2930 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2931 mpeg2_vdpau_hwaccel_deps="vdpau"
2932 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2933 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2934 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2935 mpeg2_xvmc_hwaccel_deps="xvmc"
2936 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2937 mpeg4_nvdec_hwaccel_deps="nvdec"
2938 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2939 mpeg4_vaapi_hwaccel_deps="vaapi"
2940 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2941 mpeg4_vdpau_hwaccel_deps="vdpau"
2942 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2943 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2944 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2945 vc1_d3d11va_hwaccel_deps="d3d11va"
2946 vc1_d3d11va_hwaccel_select="vc1_decoder"
2947 vc1_d3d11va2_hwaccel_deps="d3d11va"
2948 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2949 vc1_dxva2_hwaccel_deps="dxva2"
2950 vc1_dxva2_hwaccel_select="vc1_decoder"
2951 vc1_nvdec_hwaccel_deps="nvdec"
2952 vc1_nvdec_hwaccel_select="vc1_decoder"
2953 vc1_vaapi_hwaccel_deps="vaapi"
2954 vc1_vaapi_hwaccel_select="vc1_decoder"
2955 vc1_vdpau_hwaccel_deps="vdpau"
2956 vc1_vdpau_hwaccel_select="vc1_decoder"
2957 vp8_nvdec_hwaccel_deps="nvdec"
2958 vp8_nvdec_hwaccel_select="vp8_decoder"
2959 vp8_vaapi_hwaccel_deps="vaapi"
2960 vp8_vaapi_hwaccel_select="vp8_decoder"
2961 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2962 vp9_d3d11va_hwaccel_select="vp9_decoder"
2963 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2964 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2965 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2966 vp9_dxva2_hwaccel_select="vp9_decoder"
2967 vp9_nvdec_hwaccel_deps="nvdec"
2968 vp9_nvdec_hwaccel_select="vp9_decoder"
2969 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2970 vp9_vaapi_hwaccel_select="vp9_decoder"
2971 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2972 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2973 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2974 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2975 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2976 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2977
2978 # hardware-accelerated codecs
2979 omx_deps="libdl pthreads"
2980 omx_rpi_select="omx"
2981 qsv_deps="libmfx"
2982 qsvdec_select="qsv"
2983 qsvenc_select="qsv"
2984 qsvvpp_select="qsv"
2985 vaapi_encode_deps="vaapi"
2986 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2987
2988 hwupload_cuda_filter_deps="ffnvcodec"
2989 scale_npp_filter_deps="ffnvcodec libnpp"
2990 scale_cuda_filter_deps="ffnvcodec cuda_nvcc"
2991 thumbnail_cuda_filter_deps="ffnvcodec cuda_nvcc"
2992 transpose_npp_filter_deps="ffnvcodec libnpp"
2993
2994 amf_deps_any="libdl LoadLibrary"
2995 nvenc_deps="ffnvcodec"
2996 nvenc_deps_any="libdl LoadLibrary"
2997 nvenc_encoder_deps="nvenc"
2998
2999 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3000 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3001 h264_amf_encoder_deps="amf"
3002 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3003 h264_cuvid_decoder_deps="cuvid"
3004 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3005 h264_mediacodec_decoder_deps="mediacodec"
3006 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3007 h264_mmal_decoder_deps="mmal"
3008 h264_nvenc_encoder_deps="nvenc"
3009 h264_omx_encoder_deps="omx"
3010 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
3011 h264_qsv_encoder_select="qsvenc"
3012 h264_rkmpp_decoder_deps="rkmpp"
3013 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3014 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3015 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3016 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3017 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3018 hevc_amf_encoder_deps="amf"
3019 hevc_cuvid_decoder_deps="cuvid"
3020 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3021 hevc_mediacodec_decoder_deps="mediacodec"
3022 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3023 hevc_nvenc_encoder_deps="nvenc"
3024 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
3025 hevc_qsv_encoder_select="hevcparse qsvenc"
3026 hevc_rkmpp_decoder_deps="rkmpp"
3027 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3028 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3029 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3030 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3031 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3032 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3033 mjpeg_cuvid_decoder_deps="cuvid"
3034 mjpeg_qsv_encoder_deps="libmfx"
3035 mjpeg_qsv_encoder_select="qsvenc"
3036 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3037 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3038 mpeg1_cuvid_decoder_deps="cuvid"
3039 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3040 mpeg2_crystalhd_decoder_select="crystalhd"
3041 mpeg2_cuvid_decoder_deps="cuvid"
3042 mpeg2_mmal_decoder_deps="mmal"
3043 mpeg2_mediacodec_decoder_deps="mediacodec"
3044 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
3045 mpeg2_qsv_encoder_select="qsvenc"
3046 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3047 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3048 mpeg4_crystalhd_decoder_select="crystalhd"
3049 mpeg4_cuvid_decoder_deps="cuvid"
3050 mpeg4_mediacodec_decoder_deps="mediacodec"
3051 mpeg4_mmal_decoder_deps="mmal"
3052 mpeg4_omx_encoder_deps="omx"
3053 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3054 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3055 msmpeg4_crystalhd_decoder_select="crystalhd"
3056 nvenc_h264_encoder_select="h264_nvenc_encoder"
3057 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3058 vc1_crystalhd_decoder_select="crystalhd"
3059 vc1_cuvid_decoder_deps="cuvid"
3060 vc1_mmal_decoder_deps="mmal"
3061 vc1_qsv_decoder_select="qsvdec vc1_parser"
3062 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3063 vp8_cuvid_decoder_deps="cuvid"
3064 vp8_mediacodec_decoder_deps="mediacodec"
3065 vp8_qsv_decoder_select="qsvdec vp8_parser"
3066 vp8_rkmpp_decoder_deps="rkmpp"
3067 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3068 vp8_vaapi_encoder_select="vaapi_encode"
3069 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3070 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3071 vp9_cuvid_decoder_deps="cuvid"
3072 vp9_mediacodec_decoder_deps="mediacodec"
3073 vp9_rkmpp_decoder_deps="rkmpp"
3074 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3075 vp9_vaapi_encoder_select="vaapi_encode"
3076 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3077 wmv3_crystalhd_decoder_select="crystalhd"
3078
3079 # parsers
3080 aac_parser_select="adts_header"
3081 av1_parser_select="cbs_av1"
3082 h264_parser_select="golomb h264dsp h264parse"
3083 hevc_parser_select="hevcparse"
3084 mpegaudio_parser_select="mpegaudioheader"
3085 mpegvideo_parser_select="mpegvideo"
3086 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3087 vc1_parser_select="vc1dsp"
3088
3089 # bitstream_filters
3090 aac_adtstoasc_bsf_select="adts_header"
3091 av1_frame_split_bsf_select="cbs_av1"
3092 av1_metadata_bsf_select="cbs_av1"
3093 eac3_core_bsf_select="ac3_parser"
3094 filter_units_bsf_select="cbs"
3095 h264_metadata_bsf_deps="const_nan"
3096 h264_metadata_bsf_select="cbs_h264"
3097 h264_redundant_pps_bsf_select="cbs_h264"
3098 hevc_metadata_bsf_select="cbs_h265"
3099 mjpeg2jpeg_bsf_select="jpegtables"
3100 mpeg2_metadata_bsf_select="cbs_mpeg2"
3101 trace_headers_bsf_select="cbs"
3102 vp9_metadata_bsf_select="cbs_vp9"
3103
3104 # external libraries
3105 aac_at_decoder_deps="audiotoolbox"
3106 aac_at_decoder_select="aac_adtstoasc_bsf"
3107 ac3_at_decoder_deps="audiotoolbox"
3108 ac3_at_decoder_select="ac3_parser"
3109 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3110 alac_at_decoder_deps="audiotoolbox"
3111 amr_nb_at_decoder_deps="audiotoolbox"
3112 avisynth_deps_any="libdl LoadLibrary"
3113 avisynth_demuxer_deps="avisynth"
3114 avisynth_demuxer_select="riffdec"
3115 eac3_at_decoder_deps="audiotoolbox"
3116 eac3_at_decoder_select="ac3_parser"
3117 gsm_ms_at_decoder_deps="audiotoolbox"
3118 ilbc_at_decoder_deps="audiotoolbox"
3119 mp1_at_decoder_deps="audiotoolbox"
3120 mp2_at_decoder_deps="audiotoolbox"
3121 mp3_at_decoder_deps="audiotoolbox"
3122 mp1_at_decoder_select="mpegaudioheader"
3123 mp2_at_decoder_select="mpegaudioheader"
3124 mp3_at_decoder_select="mpegaudioheader"
3125 pcm_alaw_at_decoder_deps="audiotoolbox"
3126 pcm_mulaw_at_decoder_deps="audiotoolbox"
3127 qdmc_at_decoder_deps="audiotoolbox"
3128 qdm2_at_decoder_deps="audiotoolbox"
3129 aac_at_encoder_deps="audiotoolbox"
3130 aac_at_encoder_select="audio_frame_queue"
3131 alac_at_encoder_deps="audiotoolbox"
3132 alac_at_encoder_select="audio_frame_queue"
3133 ilbc_at_encoder_deps="audiotoolbox"
3134 ilbc_at_encoder_select="audio_frame_queue"
3135 pcm_alaw_at_encoder_deps="audiotoolbox"
3136 pcm_alaw_at_encoder_select="audio_frame_queue"
3137 pcm_mulaw_at_encoder_deps="audiotoolbox"
3138 pcm_mulaw_at_encoder_select="audio_frame_queue"
3139 chromaprint_muxer_deps="chromaprint"
3140 h264_videotoolbox_encoder_deps="pthreads"
3141 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3142 hevc_videotoolbox_encoder_deps="pthreads"
3143 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3144 libaom_av1_decoder_deps="libaom"
3145 libaom_av1_encoder_deps="libaom"
3146 libaom_av1_encoder_select="extract_extradata_bsf"
3147 libaribb24_decoder_deps="libaribb24"
3148 libcelt_decoder_deps="libcelt"
3149 libcodec2_decoder_deps="libcodec2"
3150 libcodec2_encoder_deps="libcodec2"
3151 libdav1d_decoder_deps="libdav1d"
3152 libdavs2_decoder_deps="libdavs2"
3153 libfdk_aac_decoder_deps="libfdk_aac"
3154 libfdk_aac_encoder_deps="libfdk_aac"
3155 libfdk_aac_encoder_select="audio_frame_queue"
3156 libgme_demuxer_deps="libgme"
3157 libgsm_decoder_deps="libgsm"
3158 libgsm_encoder_deps="libgsm"
3159 libgsm_ms_decoder_deps="libgsm"
3160 libgsm_ms_encoder_deps="libgsm"
3161 libilbc_decoder_deps="libilbc"
3162 libilbc_encoder_deps="libilbc"
3163 libkvazaar_encoder_deps="libkvazaar"
3164 libmodplug_demuxer_deps="libmodplug"
3165 libmp3lame_encoder_deps="libmp3lame"
3166 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3167 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3168 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3169 libopencore_amrnb_encoder_select="audio_frame_queue"
3170 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3171 libopenh264_decoder_deps="libopenh264"
3172 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3173 libopenh264_encoder_deps="libopenh264"
3174 libopenjpeg_decoder_deps="libopenjpeg"
3175 libopenjpeg_encoder_deps="libopenjpeg"
3176 libopenmpt_demuxer_deps="libopenmpt"
3177 libopus_decoder_deps="libopus"
3178 libopus_encoder_deps="libopus"
3179 libopus_encoder_select="audio_frame_queue"
3180 librsvg_decoder_deps="librsvg"
3181 libshine_encoder_deps="libshine"
3182 libshine_encoder_select="audio_frame_queue"
3183 libspeex_decoder_deps="libspeex"
3184 libspeex_encoder_deps="libspeex"
3185 libspeex_encoder_select="audio_frame_queue"
3186 libtheora_encoder_deps="libtheora"
3187 libtwolame_encoder_deps="libtwolame"
3188 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3189 libvorbis_decoder_deps="libvorbis"
3190 libvorbis_encoder_deps="libvorbis libvorbisenc"
3191 libvorbis_encoder_select="audio_frame_queue"
3192 libvpx_vp8_decoder_deps="libvpx"
3193 libvpx_vp8_encoder_deps="libvpx"
3194 libvpx_vp9_decoder_deps="libvpx"
3195 libvpx_vp9_encoder_deps="libvpx"
3196 libwavpack_encoder_deps="libwavpack"
3197 libwavpack_encoder_select="audio_frame_queue"
3198 libwebp_encoder_deps="libwebp"
3199 libwebp_anim_encoder_deps="libwebp"
3200 libx262_encoder_deps="libx262"
3201 libx264_encoder_deps="libx264"
3202 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3203 libx264rgb_encoder_select="libx264_encoder"
3204 libx265_encoder_deps="libx265"
3205 libxavs_encoder_deps="libxavs"
3206 libxavs2_encoder_deps="libxavs2"
3207 libxvid_encoder_deps="libxvid"
3208 libzvbi_teletext_decoder_deps="libzvbi"
3209 vapoursynth_demuxer_deps="vapoursynth"
3210 videotoolbox_suggest="coreservices"
3211 videotoolbox_deps="corefoundation coremedia corevideo"
3212 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3213
3214 # demuxers / muxers
3215 ac3_demuxer_select="ac3_parser"
3216 aiff_muxer_select="iso_media"
3217 asf_demuxer_select="riffdec"
3218 asf_o_demuxer_select="riffdec"
3219 asf_muxer_select="riffenc"
3220 asf_stream_muxer_select="asf_muxer"
3221 avi_demuxer_select="iso_media riffdec exif"
3222 avi_muxer_select="riffenc"
3223 caf_demuxer_select="iso_media riffdec"
3224 caf_muxer_select="iso_media"
3225 dash_muxer_select="mp4_muxer"
3226 dash_demuxer_deps="libxml2"
3227 dirac_demuxer_select="dirac_parser"
3228 dts_demuxer_select="dca_parser"
3229 dtshd_demuxer_select="dca_parser"
3230 dv_demuxer_select="dvprofile"
3231 dv_muxer_select="dvprofile"
3232 dxa_demuxer_select="riffdec"
3233 eac3_demuxer_select="ac3_parser"
3234 f4v_muxer_select="mov_muxer"
3235 fifo_muxer_deps="threads"
3236 flac_demuxer_select="flac_parser"
3237 hds_muxer_select="flv_muxer"
3238 hls_muxer_select="mpegts_muxer"
3239 hls_muxer_suggest="gcrypt openssl"
3240 image2_alias_pix_demuxer_select="image2_demuxer"
3241 image2_brender_pix_demuxer_select="image2_demuxer"
3242 ipod_muxer_select="mov_muxer"
3243 ismv_muxer_select="mov_muxer"
3244 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3245 matroska_audio_muxer_select="matroska_muxer"
3246 matroska_demuxer_select="iso_media riffdec"
3247 matroska_demuxer_suggest="bzlib lzo zlib"
3248 matroska_muxer_select="iso_media riffenc"
3249 mmf_muxer_select="riffenc"
3250 mov_demuxer_select="iso_media riffdec"
3251 mov_demuxer_suggest="zlib"
3252 mov_muxer_select="iso_media riffenc rtpenc_chain"
3253 mp3_demuxer_select="mpegaudio_parser"
3254 mp3_muxer_select="mpegaudioheader"
3255 mp4_muxer_select="mov_muxer"
3256 mpegts_demuxer_select="iso_media"
3257 mpegts_muxer_select="adts_muxer latm_muxer"
3258 mpegtsraw_demuxer_select="mpegts_demuxer"
3259 mxf_d10_muxer_select="mxf_muxer"
3260 mxf_opatom_muxer_select="mxf_muxer"
3261 nut_muxer_select="riffenc"
3262 nuv_demuxer_select="riffdec"
3263 oga_muxer_select="ogg_muxer"
3264 ogg_demuxer_select="dirac_parse"
3265 ogv_muxer_select="ogg_muxer"
3266 opus_muxer_select="ogg_muxer"
3267 psp_muxer_select="mov_muxer"
3268 rtp_demuxer_select="sdp_demuxer"
3269 rtp_muxer_select="golomb"
3270 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3271 rtsp_demuxer_select="http_protocol rtpdec"
3272 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3273 sap_demuxer_select="sdp_demuxer"
3274 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3275 sdp_demuxer_select="rtpdec"
3276 smoothstreaming_muxer_select="ismv_muxer"
3277 spdif_demuxer_select="adts_header"
3278 spdif_muxer_select="adts_header"
3279 spx_muxer_select="ogg_muxer"
3280 swf_demuxer_suggest="zlib"
3281 tak_demuxer_select="tak_parser"
3282 tg2_muxer_select="mov_muxer"
3283 tgp_muxer_select="mov_muxer"
3284 vobsub_demuxer_select="mpegps_demuxer"
3285 w64_demuxer_select="wav_demuxer"
3286 w64_muxer_select="wav_muxer"
3287 wav_demuxer_select="riffdec"
3288 wav_muxer_select="riffenc"
3289 webm_muxer_select="iso_media riffenc"
3290 webm_dash_manifest_demuxer_select="matroska_demuxer"
3291 wtv_demuxer_select="mpegts_demuxer riffdec"
3292 wtv_muxer_select="mpegts_muxer riffenc"
3293 xmv_demuxer_select="riffdec"
3294 xwma_demuxer_select="riffdec"
3295
3296 # indevs / outdevs
3297 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3298 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3299 alsa_indev_deps="alsa"
3300 alsa_outdev_deps="alsa"
3301 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3302 avfoundation_indev_suggest="coregraphics applicationservices"
3303 avfoundation_indev_extralibs="-framework Foundation"
3304 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3305 caca_outdev_deps="libcaca"
3306 decklink_deps_any="libdl LoadLibrary"
3307 decklink_indev_deps="decklink threads"
3308 decklink_indev_extralibs="-lstdc++"
3309 decklink_outdev_deps="decklink threads"
3310 decklink_outdev_suggest="libklvanc"
3311 decklink_outdev_extralibs="-lstdc++"
3312 dshow_indev_deps="IBaseFilter"
3313 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3314 fbdev_indev_deps="linux_fb_h"
3315 fbdev_outdev_deps="linux_fb_h"
3316 gdigrab_indev_deps="CreateDIBSection"
3317 gdigrab_indev_extralibs="-lgdi32"
3318 gdigrab_indev_select="bmp_decoder"
3319 iec61883_indev_deps="libiec61883"
3320 jack_indev_deps="libjack"
3321 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3322 kmsgrab_indev_deps="libdrm"
3323 lavfi_indev_deps="avfilter"
3324 libcdio_indev_deps="libcdio"
3325 libdc1394_indev_deps="libdc1394"
3326 openal_indev_deps="openal"
3327 opengl_outdev_deps="opengl"
3328 opengl_outdev_suggest="sdl2"
3329 oss_indev_deps_any="sys_soundcard_h"
3330 oss_outdev_deps_any="sys_soundcard_h"
3331 pulse_indev_deps="libpulse"
3332 pulse_outdev_deps="libpulse"
3333 sdl2_outdev_deps="sdl2"
3334 sndio_indev_deps="sndio"
3335 sndio_outdev_deps="sndio"
3336 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3337 v4l2_indev_suggest="libv4l2"
3338 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3339 v4l2_outdev_suggest="libv4l2"
3340 vfwcap_indev_deps="vfw32 vfwcap_defines"
3341 xcbgrab_indev_deps="libxcb"
3342 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3343 xv_outdev_deps="xlib"
3344
3345 # protocols
3346 async_protocol_deps="threads"
3347 bluray_protocol_deps="libbluray"
3348 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3349 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3350 ffrtmpcrypt_protocol_select="tcp_protocol"
3351 ffrtmphttp_protocol_conflict="librtmp_protocol"
3352 ffrtmphttp_protocol_select="http_protocol"
3353 ftp_protocol_select="tcp_protocol"
3354 gopher_protocol_select="network"
3355 http_protocol_select="tcp_protocol"
3356 http_protocol_suggest="zlib"
3357 httpproxy_protocol_select="tcp_protocol"
3358 httpproxy_protocol_suggest="zlib"
3359 https_protocol_select="tls_protocol"
3360 https_protocol_suggest="zlib"
3361 icecast_protocol_select="http_protocol"
3362 mmsh_protocol_select="http_protocol"
3363 mmst_protocol_select="network"
3364 rtmp_protocol_conflict="librtmp_protocol"
3365 rtmp_protocol_select="tcp_protocol"
3366 rtmp_protocol_suggest="zlib"
3367 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3368 rtmpe_protocol_suggest="zlib"
3369 rtmps_protocol_conflict="librtmp_protocol"
3370 rtmps_protocol_select="tls_protocol"
3371 rtmps_protocol_suggest="zlib"
3372 rtmpt_protocol_select="ffrtmphttp_protocol"
3373 rtmpt_protocol_suggest="zlib"
3374 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3375 rtmpte_protocol_suggest="zlib"
3376 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3377 rtmpts_protocol_suggest="zlib"
3378 rtp_protocol_select="udp_protocol"
3379 schannel_conflict="openssl gnutls libtls mbedtls"
3380 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3381 sctp_protocol_select="network"
3382 securetransport_conflict="openssl gnutls libtls mbedtls"
3383 srtp_protocol_select="rtp_protocol srtp"
3384 tcp_protocol_select="network"
3385 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3386 tls_protocol_select="tcp_protocol"
3387 udp_protocol_select="network"
3388 udplite_protocol_select="network"
3389 unix_protocol_deps="sys_un_h"
3390 unix_protocol_select="network"
3391
3392 # external library protocols
3393 librtmp_protocol_deps="librtmp"
3394 librtmpe_protocol_deps="librtmp"
3395 librtmps_protocol_deps="librtmp"
3396 librtmpt_protocol_deps="librtmp"
3397 librtmpte_protocol_deps="librtmp"
3398 libsmbclient_protocol_deps="libsmbclient gplv3"
3399 libsrt_protocol_deps="libsrt"
3400 libsrt_protocol_select="network"
3401 libssh_protocol_deps="libssh"
3402 libtls_conflict="openssl gnutls mbedtls"
3403
3404 # filters
3405 afftdn_filter_deps="avcodec"
3406 afftdn_filter_select="fft"
3407 afftfilt_filter_deps="avcodec"
3408 afftfilt_filter_select="fft"
3409 afir_filter_deps="avcodec"
3410 afir_filter_select="fft"
3411 amovie_filter_deps="avcodec avformat"
3412 aresample_filter_deps="swresample"
3413 asr_filter_deps="pocketsphinx"
3414 ass_filter_deps="libass"
3415 atempo_filter_deps="avcodec"
3416 atempo_filter_select="rdft"
3417 avgblur_opencl_filter_deps="opencl"
3418 azmq_filter_deps="libzmq"
3419 blackframe_filter_deps="gpl"
3420 bm3d_filter_deps="avcodec"
3421 bm3d_filter_select="dct"
3422 boxblur_filter_deps="gpl"
3423 boxblur_opencl_filter_deps="opencl gpl"
3424 bs2b_filter_deps="libbs2b"
3425 colorkey_opencl_filter_deps="opencl"
3426 colormatrix_filter_deps="gpl"
3427 convolution_opencl_filter_deps="opencl"
3428 convolve_filter_deps="avcodec"
3429 convolve_filter_select="fft"
3430 coreimage_filter_deps="coreimage appkit"
3431 coreimage_filter_extralibs="-framework OpenGL"
3432 coreimagesrc_filter_deps="coreimage appkit"
3433 coreimagesrc_filter_extralibs="-framework OpenGL"
3434 cover_rect_filter_deps="avcodec avformat gpl"
3435 cropdetect_filter_deps="gpl"
3436 deconvolve_filter_deps="avcodec"
3437 deconvolve_filter_select="fft"
3438 deinterlace_qsv_filter_deps="libmfx"
3439 deinterlace_vaapi_filter_deps="vaapi"
3440 delogo_filter_deps="gpl"
3441 denoise_vaapi_filter_deps="vaapi"
3442 derain_filter_select="dnn"
3443 deshake_filter_select="pixelutils"
3444 dilation_opencl_filter_deps="opencl"
3445 drawtext_filter_deps="libfreetype"
3446 drawtext_filter_suggest="libfontconfig libfribidi"
3447 elbg_filter_deps="avcodec"
3448 eq_filter_deps="gpl"
3449 erosion_opencl_filter_deps="opencl"
3450 fftfilt_filter_deps="avcodec"
3451 fftfilt_filter_select="rdft"
3452 fftdnoiz_filter_deps="avcodec"
3453 fftdnoiz_filter_select="fft"
3454 find_rect_filter_deps="avcodec avformat gpl"
3455 firequalizer_filter_deps="avcodec"
3456 firequalizer_filter_select="rdft"
3457 flite_filter_deps="libflite"
3458 framerate_filter_select="scene_sad"
3459 freezedetect_filter_select="scene_sad"
3460 frei0r_filter_deps="frei0r libdl"
3461 frei0r_src_filter_deps="frei0r libdl"
3462 fspp_filter_deps="gpl"
3463 geq_filter_deps="gpl"
3464 histeq_filter_deps="gpl"
3465 hqdn3d_filter_deps="gpl"
3466 interlace_filter_deps="gpl"
3467 kerndeint_filter_deps="gpl"
3468 ladspa_filter_deps="ladspa libdl"
3469 lensfun_filter_deps="liblensfun version3"
3470 lv2_filter_deps="lv2"
3471 mcdeint_filter_deps="avcodec gpl"
3472 movie_filter_deps="avcodec avformat"
3473 mpdecimate_filter_deps="gpl"
3474 mpdecimate_filter_select="pixelutils"
3475 minterpolate_filter_select="scene_sad"
3476 mptestsrc_filter_deps="gpl"
3477 negate_filter_deps="lut_filter"
3478 nlmeans_opencl_filter_deps="opencl"
3479 nnedi_filter_deps="gpl"
3480 ocr_filter_deps="libtesseract"
3481 ocv_filter_deps="libopencv"
3482 openclsrc_filter_deps="opencl"
3483 overlay_opencl_filter_deps="opencl"
3484 overlay_qsv_filter_deps="libmfx"
3485 overlay_qsv_filter_select="qsvvpp"
3486 owdenoise_filter_deps="gpl"
3487 pan_filter_deps="swresample"
3488 perspective_filter_deps="gpl"
3489 phase_filter_deps="gpl"
3490 pp7_filter_deps="gpl"
3491 pp_filter_deps="gpl postproc"
3492 prewitt_opencl_filter_deps="opencl"
3493 procamp_vaapi_filter_deps="vaapi"
3494 program_opencl_filter_deps="opencl"
3495 pullup_filter_deps="gpl"
3496 removelogo_filter_deps="avcodec avformat swscale"
3497 repeatfields_filter_deps="gpl"
3498 resample_filter_deps="avresample"
3499 roberts_opencl_filter_deps="opencl"
3500 rubberband_filter_deps="librubberband"
3501 sab_filter_deps="gpl swscale"
3502 scale2ref_filter_deps="swscale"
3503 scale_filter_deps="swscale"
3504 scale_qsv_filter_deps="libmfx"
3505 select_filter_select="scene_sad"
3506 sharpness_vaapi_filter_deps="vaapi"
3507 showcqt_filter_deps="avcodec avformat swscale"
3508 showcqt_filter_suggest="libfontconfig libfreetype"
3509 showcqt_filter_select="fft"
3510 showfreqs_filter_deps="avcodec"
3511 showfreqs_filter_select="fft"
3512 showspectrum_filter_deps="avcodec"
3513 showspectrum_filter_select="fft"
3514 showspectrumpic_filter_deps="avcodec"
3515 showspectrumpic_filter_select="fft"
3516 signature_filter_deps="gpl avcodec avformat"
3517 smartblur_filter_deps="gpl swscale"
3518 sobel_opencl_filter_deps="opencl"
3519 sofalizer_filter_deps="libmysofa avcodec"
3520 sofalizer_filter_select="fft"
3521 spectrumsynth_filter_deps="avcodec"
3522 spectrumsynth_filter_select="fft"
3523 spp_filter_deps="gpl avcodec"
3524 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3525 sr_filter_deps="avformat swscale"
3526 sr_filter_select="dnn"
3527 stereo3d_filter_deps="gpl"
3528 subtitles_filter_deps="avformat avcodec libass"
3529 super2xsai_filter_deps="gpl"
3530 pixfmts_super2xsai_test_deps="super2xsai_filter"
3531 tinterlace_filter_deps="gpl"
3532 tinterlace_merge_test_deps="tinterlace_filter"
3533 tinterlace_pad_test_deps="tinterlace_filter"
3534 tonemap_filter_deps="const_nan"
3535 tonemap_opencl_filter_deps="opencl const_nan"
3536 transpose_opencl_filter_deps="opencl"
3537 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3538 unsharp_opencl_filter_deps="opencl"
3539 uspp_filter_deps="gpl avcodec"
3540 vaguedenoiser_filter_deps="gpl"
3541 vidstabdetect_filter_deps="libvidstab"
3542 vidstabtransform_filter_deps="libvidstab"
3543 libvmaf_filter_deps="libvmaf pthreads"
3544 zmq_filter_deps="libzmq"
3545 zoompan_filter_deps="swscale"
3546 zscale_filter_deps="libzimg const_nan"
3547 scale_vaapi_filter_deps="vaapi"
3548 vpp_qsv_filter_deps="libmfx"
3549 vpp_qsv_filter_select="qsvvpp"
3550 yadif_cuda_filter_deps="ffnvcodec cuda_nvcc"
3551
3552 # examples
3553 avio_dir_cmd_deps="avformat avutil"
3554 avio_reading_deps="avformat avcodec avutil"
3555 decode_audio_example_deps="avcodec avutil"
3556 decode_video_example_deps="avcodec avutil"
3557 demuxing_decoding_example_deps="avcodec avformat avutil"
3558 encode_audio_example_deps="avcodec avutil"
3559 encode_video_example_deps="avcodec avutil"
3560 extract_mvs_example_deps="avcodec avformat avutil"
3561 filter_audio_example_deps="avfilter avutil"
3562 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3563 filtering_video_example_deps="avfilter avcodec avformat avutil"
3564 http_multiclient_example_deps="avformat avutil fork"
3565 hw_decode_example_deps="avcodec avformat avutil"
3566 metadata_example_deps="avformat avutil"
3567 muxing_example_deps="avcodec avformat avutil swscale"
3568 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3569 remuxing_example_deps="avcodec avformat avutil"
3570 resampling_audio_example_deps="avutil swresample"
3571 scaling_video_example_deps="avutil swscale"
3572 transcode_aac_example_deps="avcodec avformat swresample"
3573 transcoding_example_deps="avfilter avcodec avformat avutil"
3574 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3575 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3576
3577 # EXTRALIBS_LIST
3578 cpu_init_extralibs="pthreads_extralibs"
3579 cws2fws_extralibs="zlib_extralibs"
3580
3581 # libraries, in any order
3582 avcodec_deps="avutil"
3583 avcodec_suggest="libm"
3584 avcodec_select="null_bsf"
3585 avdevice_deps="avformat avcodec avutil"
3586 avdevice_suggest="libm"
3587 avfilter_deps="avutil"
3588 avfilter_suggest="libm"
3589 avformat_deps="avcodec avutil"
3590 avformat_suggest="libm network zlib"
3591 avresample_deps="avutil"
3592 avresample_suggest="libm"
3593 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3594 postproc_deps="avutil gpl"
3595 postproc_suggest="libm"
3596 swresample_deps="avutil"
3597 swresample_suggest="libm libsoxr"
3598 swscale_deps="avutil"
3599 swscale_suggest="libm"
3600
3601 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3602 avfilter_extralibs="pthreads_extralibs"
3603 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3604
3605 # programs
3606 ffmpeg_deps="avcodec avfilter avformat"
3607 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3608                hflip_filter null_filter
3609                transpose_filter trim_filter vflip_filter"
3610 ffmpeg_suggest="ole32 psapi shell32"
3611 ffplay_deps="avcodec avformat swscale swresample sdl2"
3612 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3613 ffplay_suggest="shell32"
3614 ffprobe_deps="avcodec avformat"
3615 ffprobe_suggest="shell32"
3616
3617 # documentation
3618 podpages_deps="perl"
3619 manpages_deps="perl pod2man"
3620 htmlpages_deps="perl"
3621 htmlpages_deps_any="makeinfo_html texi2html"
3622 txtpages_deps="perl makeinfo"
3623 doc_deps_any="manpages htmlpages podpages txtpages"
3624
3625 # default parameters
3626
3627 logfile="ffbuild/config.log"
3628
3629 # installation paths
3630 prefix_default="/usr/local"
3631 bindir_default='${prefix}/bin'
3632 datadir_default='${prefix}/share/ffmpeg'
3633 docdir_default='${prefix}/share/doc/ffmpeg'
3634 incdir_default='${prefix}/include'
3635 libdir_default='${prefix}/lib'
3636 mandir_default='${prefix}/share/man'
3637
3638 # toolchain
3639 ar_default="ar"
3640 cc_default="gcc"
3641 cxx_default="g++"
3642 host_cc_default="gcc"
3643 doxygen_default="doxygen"
3644 install="install"
3645 ln_s_default="ln -s -f"
3646 nm_default="nm -g"
3647 pkg_config_default=pkg-config
3648 ranlib_default="ranlib"
3649 strip_default="strip"
3650 version_script='--version-script'
3651 objformat="elf32"
3652 x86asmexe_default="nasm"
3653 windres_default="windres"
3654 nvcc_default="nvcc"
3655 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3656 striptype="direct"
3657
3658 # OS
3659 target_os_default=$(tolower $(uname -s))
3660 host_os=$target_os_default
3661
3662 # machine
3663 if test "$target_os_default" = aix; then
3664     arch_default=$(uname -p)
3665     strip_default="strip -X32_64"
3666     nm_default="nm -g -X32_64"
3667 else
3668     arch_default=$(uname -m)
3669 fi
3670 cpu="generic"
3671 intrinsics="none"
3672
3673 # configurable options
3674 enable $PROGRAM_LIST
3675 enable $DOCUMENT_LIST
3676 enable $EXAMPLE_LIST
3677 enable $(filter_out avresample $LIBRARY_LIST)
3678 enable stripping
3679
3680 enable asm
3681 enable debug
3682 enable doc
3683 enable faan faandct faanidct
3684 enable optimizations
3685 enable runtime_cpudetect
3686 enable safe_bitstream_reader
3687 enable static
3688 enable swscale_alpha
3689 enable valgrind_backtrace
3690
3691 sws_max_filter_size_default=256
3692 set_default sws_max_filter_size
3693
3694 # internal components are enabled by default
3695 enable $EXTRALIBS_LIST
3696
3697 # Avoid external, non-system, libraries getting enabled by dependency resolution
3698 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3699
3700 # build settings
3701 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3702 LIBPREF="lib"
3703 LIBSUF=".a"
3704 FULLNAME='$(NAME)$(BUILDSUF)'
3705 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3706 SLIBPREF="lib"
3707 SLIBSUF=".so"
3708 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3709 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3710 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3711 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3712 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3713 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3714 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3715
3716 asflags_filter=echo
3717 cflags_filter=echo
3718 ldflags_filter=echo
3719
3720 AS_C='-c'
3721 AS_O='-o $@'
3722 CC_C='-c'
3723 CC_E='-E -o $@'
3724 CC_O='-o $@'
3725 CXX_C='-c'
3726 CXX_O='-o $@'
3727 OBJCC_C='-c'
3728 OBJCC_E='-E -o $@'
3729 OBJCC_O='-o $@'
3730 X86ASM_O='-o $@'
3731 LD_O='-o $@'
3732 LD_LIB='-l%'
3733 LD_PATH='-L'
3734 HOSTCC_C='-c'
3735 HOSTCC_E='-E -o $@'
3736 HOSTCC_O='-o $@'
3737 HOSTLD_O='-o $@'
3738 NVCC_C='-c'
3739 NVCC_O='-o $@'
3740
3741 host_extralibs='-lm'
3742 host_cflags_filter=echo
3743 host_ldflags_filter=echo
3744
3745 target_path='$(CURDIR)'
3746
3747 # since the object filename is not given with the -MM flag, the compiler
3748 # is only able to print the basename, and we must add the path ourselves
3749 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3750 DEPFLAGS='-MM'
3751
3752 mkdir -p ffbuild
3753
3754 # find source path
3755 if test -f configure; then
3756     source_path=.
3757 elif test -f src/configure; then
3758     source_path=src
3759 else
3760     source_path=$(cd $(dirname "$0"); pwd)
3761     case "$source_path" in
3762         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3763     esac
3764     test -e "$source_path/config.h" &&
3765         die "Out of tree builds are impossible with config.h in source dir."
3766 fi
3767
3768 for v in "$@"; do
3769     r=${v#*=}
3770     l=${v%"$r"}
3771     r=$(sh_quote "$r")
3772     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3773 done
3774
3775 find_things_extern(){
3776     thing=$1
3777     pattern=$2
3778     file=$source_path/$3
3779     out=${4:-$thing}
3780     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3781 }
3782
3783 find_filters_extern(){
3784     file=$source_path/$1
3785     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3786 }
3787
3788 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3789 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3790 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3791 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3792 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3793 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3794 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3795 CODEC_LIST="
3796     $ENCODER_LIST
3797     $DECODER_LIST
3798 "
3799 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3800 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3801 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3802 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3803
3804 AVCODEC_COMPONENTS_LIST="
3805     $BSF_LIST
3806     $DECODER_LIST
3807     $ENCODER_LIST
3808     $HWACCEL_LIST
3809     $PARSER_LIST
3810 "
3811
3812 AVDEVICE_COMPONENTS_LIST="
3813     $INDEV_LIST
3814     $OUTDEV_LIST
3815 "
3816
3817 AVFILTER_COMPONENTS_LIST="
3818     $FILTER_LIST
3819 "
3820
3821 AVFORMAT_COMPONENTS_LIST="
3822     $DEMUXER_LIST
3823     $MUXER_LIST
3824     $PROTOCOL_LIST
3825 "
3826
3827 ALL_COMPONENTS="
3828     $AVCODEC_COMPONENTS_LIST
3829     $AVDEVICE_COMPONENTS_LIST
3830     $AVFILTER_COMPONENTS_LIST
3831     $AVFORMAT_COMPONENTS_LIST
3832 "
3833
3834 for n in $COMPONENT_LIST; do
3835     v=$(toupper ${n%s})_LIST
3836     eval enable \$$v
3837     eval ${n}_if_any="\$$v"
3838 done
3839
3840 enable $ARCH_EXT_LIST
3841
3842 die_unknown(){
3843     echo "Unknown option \"$1\"."
3844     echo "See $0 --help for available options."
3845     exit 1
3846 }
3847
3848 print_in_columns() {
3849     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3850     {
3851         num_cols = width > col_width ? int(width / col_width) : 1;
3852         num_rows = int((NF + num_cols-1) / num_cols);
3853         y = x = 1;
3854         for (y = 1; y <= num_rows; y++) {
3855             i = y;
3856             for (x = 1; x <= num_cols; x++) {
3857                 if (i <= NF) {
3858                   line = sprintf("%s%-" col_width "s", line, $i);
3859                 }
3860                 i = i + num_rows;
3861             }
3862             print line; line = "";
3863         }
3864     }' | sed 's/ *$//'
3865 }
3866
3867 show_list() {
3868     suffix=_$1
3869     shift
3870     echo $* | sed s/$suffix//g | print_in_columns
3871     exit 0
3872 }
3873
3874 rand_list(){
3875     IFS=', '
3876     set -- $*
3877     unset IFS
3878     for thing; do
3879         comp=${thing%:*}
3880         prob=${thing#$comp}
3881         prob=${prob#:}
3882         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3883         echo "prob ${prob:-0.5}"
3884         printf '%s\n' $comp
3885     done
3886 }
3887
3888 do_random(){
3889     action=$1
3890     shift
3891     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3892     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3893 }
3894
3895 for opt do
3896     optval="${opt#*=}"
3897     case "$opt" in
3898         --extra-ldflags=*)
3899             add_ldflags $optval
3900         ;;
3901         --extra-ldexeflags=*)
3902             add_ldexeflags $optval
3903         ;;
3904         --extra-ldsoflags=*)
3905             add_ldsoflags $optval
3906         ;;
3907         --extra-ldlibflags=*)
3908             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3909                  "removed in the future. Use --extra-ldsoflags instead."
3910             add_ldsoflags $optval
3911         ;;
3912         --extra-libs=*)
3913             add_extralibs $optval
3914         ;;
3915         --disable-devices)
3916             disable $INDEV_LIST $OUTDEV_LIST
3917         ;;
3918         --enable-debug=*)
3919             debuglevel="$optval"
3920         ;;
3921         --disable-programs)
3922             disable $PROGRAM_LIST
3923         ;;
3924         --disable-everything)
3925             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3926         ;;
3927         --disable-all)
3928             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3929             disable $LIBRARY_LIST $PROGRAM_LIST doc
3930             enable avutil
3931         ;;
3932         --enable-random|--disable-random)
3933             action=${opt%%-random}
3934             do_random ${action#--} $COMPONENT_LIST
3935         ;;
3936         --enable-random=*|--disable-random=*)
3937             action=${opt%%-random=*}
3938             do_random ${action#--} $optval
3939         ;;
3940         --enable-sdl)
3941             enable sdl2
3942         ;;
3943         --enable-*=*|--disable-*=*)
3944             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3945             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3946             eval list=\$$(toupper $thing)_LIST
3947             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3948             list=$(filter "$name" $list)
3949             [ "$list" = "" ] && warn "Option $opt did not match anything"
3950             test $action = enable && warn_if_gets_disabled $list
3951             $action $list
3952         ;;
3953         --enable-yasm|--disable-yasm)
3954             warn "The ${opt} option is only provided for compatibility and will be\n"\
3955                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3956             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3957         ;;
3958         --yasmexe=*)
3959             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3960                  "removed in the future. Use --x86asmexe instead."
3961             x86asmexe="$optval"
3962         ;;
3963         --enable-?*|--disable-?*)
3964             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3965             if is_in $option $COMPONENT_LIST; then
3966                 test $action = disable && action=unset
3967                 eval $action \$$(toupper ${option%s})_LIST
3968             elif is_in $option $CMDLINE_SELECT; then
3969                 $action $option
3970             else
3971                 die_unknown $opt
3972             fi
3973         ;;
3974         --list-*)
3975             NAME="${opt#--list-}"
3976             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3977             NAME=${NAME%s}
3978             eval show_list $NAME \$$(toupper $NAME)_LIST
3979         ;;
3980         --help|-h) show_help
3981         ;;
3982         --quiet|-q) quiet=yes
3983         ;;
3984         --fatal-warnings) enable fatal_warnings
3985         ;;
3986         --libfuzzer=*)
3987             libfuzzer_path="$optval"
3988         ;;
3989         *)
3990             optname="${opt%%=*}"
3991             optname="${optname#--}"
3992             optname=$(echo "$optname" | sed 's/-/_/g')
3993             if is_in $optname $CMDLINE_SET; then
3994                 eval $optname='$optval'
3995             elif is_in $optname $CMDLINE_APPEND; then
3996                 append $optname "$optval"
3997             else
3998                 die_unknown $opt
3999             fi
4000         ;;
4001     esac
4002 done
4003
4004 for e in $env; do
4005     eval "export $e"
4006 done
4007
4008 if disabled autodetect; then
4009
4010     # Unless iconv is explicitely disabled by the user, we still want to probe
4011     # for the iconv from the libc.
4012     disabled iconv || enable libc_iconv
4013
4014     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4015     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4016 fi
4017 # Mark specifically enabled, but normally autodetected libraries as requested.
4018 for lib in $AUTODETECT_LIBS; do
4019     enabled $lib && request $lib
4020 done
4021 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4022 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4023 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4024
4025 disabled logging && logfile=/dev/null
4026
4027 # command line configuration sanity checks
4028
4029 # we need to build at least one lib type
4030 if ! enabled_any static shared; then
4031     cat <<EOF
4032 At least one library type must be built.
4033 Specify --enable-static to build the static libraries or --enable-shared to
4034 build the shared libraries as well. To only build the shared libraries specify
4035 --disable-static in addition to --enable-shared.
4036 EOF
4037     exit 1
4038 fi
4039
4040 die_license_disabled() {
4041     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4042 }
4043
4044 die_license_disabled_gpl() {
4045     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4046 }
4047
4048 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4049 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4050
4051 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4052 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4053
4054 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4055
4056 if enabled nonfree; then
4057     license="nonfree and unredistributable"
4058 elif enabled gplv3; then
4059     license="GPL version 3 or later"
4060 elif enabled lgplv3; then
4061     license="LGPL version 3 or later"
4062 elif enabled gpl; then
4063     license="GPL version 2 or later"
4064 else
4065     license="LGPL version 2.1 or later"
4066 fi
4067
4068 enabled_all gnutls openssl &&
4069     die "GnuTLS and OpenSSL must not be enabled at the same time."
4070
4071 enabled_all gnutls mbedtls &&
4072     die "GnuTLS and mbedTLS must not be enabled at the same time."
4073
4074 enabled_all openssl mbedtls &&
4075     die "OpenSSL and mbedTLS must not be enabled at the same time."
4076
4077 # Disable all the library-specific components if the library itself
4078 # is disabled, see AVCODEC_LIST and following _LIST variables.
4079
4080 disable_components(){
4081     disabled ${1} && disable $(
4082         eval components="\$$(toupper ${1})_COMPONENTS"
4083         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4084     )
4085 }
4086
4087 map 'disable_components $v' $LIBRARY_LIST
4088
4089 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4090 set >> $logfile
4091
4092 test -n "$valgrind" && toolchain="valgrind-memcheck"
4093
4094 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4095     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4096     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4097 }
4098
4099 case "$toolchain" in
4100     *-asan)
4101         cc_default="${toolchain%-asan}"
4102         add_cflags  -fsanitize=address
4103         add_ldflags -fsanitize=address
4104     ;;
4105     *-msan)
4106         cc_default="${toolchain%-msan}"
4107         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4108         add_ldflags -fsanitize=memory
4109     ;;
4110     *-tsan)
4111         cc_default="${toolchain%-tsan}"
4112         add_cflags  -fsanitize=thread
4113         add_ldflags -fsanitize=thread
4114         case "$toolchain" in
4115             gcc-tsan)
4116                 add_cflags  -fPIC
4117                 add_ldflags -fPIC
4118                 ;;
4119         esac
4120     ;;
4121     *-usan)
4122         cc_default="${toolchain%-usan}"
4123         add_cflags  -fsanitize=undefined
4124         add_ldflags -fsanitize=undefined
4125     ;;
4126     valgrind-*)
4127         target_exec_default="valgrind"
4128         case "$toolchain" in
4129             valgrind-massif)
4130                 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"
4131                 ;;
4132             valgrind-memcheck)
4133                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4134                 ;;
4135         esac
4136     ;;
4137     msvc)
4138         # Check whether the current MSVC version needs the C99 converter.
4139         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4140         # support enough of C99 to build ffmpeg. Default to the new
4141         # behaviour if the regexp was unable to match anything, since this
4142         # successfully parses the version number of existing supported
4143         # versions that require the converter (MSVC 2010 and 2012).
4144         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4145         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4146             cc_default="cl.exe"
4147             cxx_default="cl.exe"
4148         else
4149             die "Unsupported MSVC version (2013 or newer required)"
4150         fi
4151         ld_default="$source_path/compat/windows/mslink"
4152         nm_default="dumpbin.exe -symbols"
4153         ar_default="lib.exe"
4154         case "$arch" in
4155         aarch64|arm64)
4156             as_default="armasm64.exe"
4157             ;;
4158         arm*)
4159             as_default="armasm.exe"
4160             ;;
4161         esac
4162         target_os_default="win32"
4163         # Use a relative path for TMPDIR. This makes sure all the
4164         # ffconf temp files are written with a relative path, avoiding
4165         # issues with msys/win32 path conversion for MSVC parameters
4166         # such as -Fo<file> or -out:<file>.
4167         TMPDIR=.
4168     ;;
4169     icl)
4170         cc_default="icl"
4171         ld_default="xilink"
4172         nm_default="dumpbin -symbols"
4173         ar_default="xilib"
4174         target_os_default="win32"
4175         TMPDIR=.
4176     ;;
4177     gcov)
4178         add_cflags  -fprofile-arcs -ftest-coverage
4179         add_ldflags -fprofile-arcs -ftest-coverage
4180     ;;
4181     llvm-cov)
4182         add_cflags -fprofile-arcs -ftest-coverage
4183         add_ldflags --coverage
4184     ;;
4185     hardened)
4186         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4187         add_cflags   -fno-strict-overflow -fstack-protector-all
4188         add_ldflags  -Wl,-z,relro -Wl,-z,now
4189         add_cflags   -fPIE
4190         add_ldexeflags -fPIE -pie
4191     ;;
4192     ?*)
4193         die "Unknown toolchain $toolchain"
4194     ;;
4195 esac
4196
4197 if test -n "$cross_prefix"; then
4198     test -n "$arch" && test -n "$target_os" ||
4199         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4200     enable cross_compile
4201 fi
4202
4203 set_default target_os
4204 if test "$target_os" = android; then
4205     cc_default="clang"
4206 fi
4207
4208 ar_default="${cross_prefix}${ar_default}"
4209 cc_default="${cross_prefix}${cc_default}"
4210 cxx_default="${cross_prefix}${cxx_default}"
4211 nm_default="${cross_prefix}${nm_default}"
4212 pkg_config_default="${cross_prefix}${pkg_config_default}"
4213 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4214     ranlib_default="${cross_prefix}${ranlib_default} -D"
4215 else
4216     ranlib_default="${cross_prefix}${ranlib_default}"
4217 fi
4218 strip_default="${cross_prefix}${strip_default}"
4219 windres_default="${cross_prefix}${windres_default}"
4220
4221 sysinclude_default="${sysroot}/usr/include"
4222
4223 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4224     target_exec x86asmexe nvcc
4225 enabled cross_compile || host_cc_default=$cc
4226 set_default host_cc
4227
4228 pkg_config_fail_message=""
4229 if ! $pkg_config --version >/dev/null 2>&1; then
4230     warn "$pkg_config not found, library detection may fail."
4231     pkg_config=false
4232 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4233     pkg_config_fail_message="
4234 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4235 fi
4236
4237 if test $doxygen != $doxygen_default && \
4238   ! $doxygen --version >/dev/null 2>&1; then
4239     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4240 fi
4241
4242 exesuf() {
4243     case $1 in
4244         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4245     esac
4246 }
4247
4248 EXESUF=$(exesuf $target_os)
4249 HOSTEXESUF=$(exesuf $host_os)
4250
4251 # set temporary file name
4252 : ${TMPDIR:=$TEMPDIR}
4253 : ${TMPDIR:=$TMP}
4254 : ${TMPDIR:=/tmp}
4255
4256 if [ -n "$tempprefix" ] ; then
4257     mktemp(){
4258         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4259         echo "$tmpname"
4260         mkdir "$tmpname"
4261     }
4262 elif ! test_cmd mktemp -u XXXXXX; then
4263     # simple replacement for missing mktemp
4264     # NOT SAFE FOR GENERAL USE
4265     mktemp(){
4266         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4267         echo "$tmpname"
4268         mkdir "$tmpname"
4269     }
4270 fi
4271
4272 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4273     die "Unable to create temporary directory in $TMPDIR."
4274
4275 tmpfile(){
4276     tmp="${FFTMPDIR}/test"$2
4277     (set -C; exec > $tmp) 2> /dev/null ||
4278         die "Unable to create temporary file in $FFTMPDIR."
4279     eval $1=$tmp
4280 }
4281
4282 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4283 trap 'exit 2' INT
4284
4285 tmpfile TMPASM .asm
4286 tmpfile TMPC   .c
4287 tmpfile TMPCPP .cpp
4288 tmpfile TMPE   $EXESUF
4289 tmpfile TMPH   .h
4290 tmpfile TMPM   .m
4291 tmpfile TMPCU  .cu
4292 tmpfile TMPO   .o
4293 tmpfile TMPS   .S
4294 tmpfile TMPSH  .sh
4295 tmpfile TMPV   .ver
4296
4297 unset -f mktemp
4298
4299 chmod +x $TMPE
4300
4301 # make sure we can execute files in $TMPDIR
4302 cat > $TMPSH 2>> $logfile <<EOF
4303 #! /bin/sh
4304 EOF
4305 chmod +x $TMPSH >> $logfile 2>&1
4306 if ! $TMPSH >> $logfile 2>&1; then
4307     cat <<EOF
4308 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4309 variable to another directory and make sure that it is not mounted noexec.
4310 EOF
4311     die "Sanity test failed."
4312 fi
4313
4314 armasm_flags(){
4315     for flag; do
4316         case $flag in
4317             # Filter out MSVC cl.exe options from cflags that shouldn't
4318             # be passed to gas-preprocessor
4319             -M[TD]*)                                            ;;
4320             *)                  echo $flag                      ;;
4321         esac
4322    done
4323 }
4324
4325 cparser_flags(){
4326     for flag; do
4327         case $flag in
4328             -Wno-switch)             echo -Wno-switch-enum ;;
4329             -Wno-format-zero-length) ;;
4330             -Wdisabled-optimization) ;;
4331             -Wno-pointer-sign)       echo -Wno-other ;;
4332             *)                       echo $flag ;;
4333         esac
4334     done
4335 }
4336
4337 msvc_common_flags(){
4338     for flag; do
4339         case $flag in
4340             # In addition to specifying certain flags under the compiler
4341             # specific filters, they must be specified here as well or else the
4342             # generic catch all at the bottom will print the original flag.
4343             -Wall)                ;;
4344             -Wextra)              ;;
4345             -std=c99)             ;;
4346             # Common flags
4347             -fomit-frame-pointer) ;;
4348             -g)                   echo -Z7 ;;
4349             -fno-math-errno)      ;;
4350             -fno-common)          ;;
4351             -fno-signed-zeros)    ;;
4352             -fPIC)                ;;
4353             -mthumb)              ;;
4354             -march=*)             ;;
4355             -lz)                  echo zlib.lib ;;
4356             -lx264)               echo libx264.lib ;;
4357             -lstdc++)             ;;
4358             -l*)                  echo ${flag#-l}.lib ;;
4359             -LARGEADDRESSAWARE)   echo $flag ;;
4360             -L*)                  echo -libpath:${flag#-L} ;;
4361             *)                    echo $flag ;;
4362         esac
4363     done
4364 }
4365
4366 msvc_flags(){
4367     msvc_common_flags "$@"
4368     for flag; do
4369         case $flag in
4370             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4371                                        -wd4554 ;;
4372             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4373                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4374                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4375                                        -wd4307 \
4376                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4377         esac
4378     done
4379 }
4380
4381 icl_flags(){
4382     msvc_common_flags "$@"
4383     for flag; do
4384         case $flag in
4385             # Despite what Intel's documentation says -Wall, which is supported
4386             # on Windows, does enable remarks so disable them here.
4387             -Wall)                echo $flag -Qdiag-disable:remark ;;
4388             -std=c99)             echo -Qstd=c99 ;;
4389             -flto)                echo -ipo ;;
4390         esac
4391     done
4392 }
4393
4394 icc_flags(){
4395     for flag; do
4396         case $flag in
4397             -flto)                echo -ipo ;;
4398             *)                    echo $flag ;;
4399         esac
4400     done
4401 }
4402
4403 suncc_flags(){
4404     for flag; do
4405         case $flag in
4406             -march=*|-mcpu=*)
4407                 case "${flag#*=}" in
4408                     native)                   echo -xtarget=native       ;;
4409                     v9|niagara)               echo -xarch=sparc          ;;
4410                     ultrasparc)               echo -xarch=sparcvis       ;;
4411                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4412                     i586|pentium)             echo -xchip=pentium        ;;
4413                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4414                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4415                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4416                     pentium4*)          echo -xtarget=pentium4           ;;
4417                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4418                     *-sse3)             echo -xarch=sse3                 ;;
4419                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4420                     bonnell)                   echo -xarch=ssse3         ;;
4421                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4422                     westmere)                  echo -xtarget=westmere    ;;
4423                     silvermont)                echo -xarch=sse4_2        ;;
4424                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4425                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4426                                                echo -xarch=avx           ;;
4427                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4428                     btver1)                    echo -xarch=amdsse4a      ;;
4429                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4430                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4431                     k8|opteron|athlon64|athlon-fx)
4432                                                echo -xarch=sse2a         ;;
4433                     athlon*)                   echo -xarch=pentium_proa  ;;
4434                 esac
4435                 ;;
4436             -std=c99)             echo -xc99              ;;
4437             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4438             -fPIC)                echo -KPIC -xcode=pic32 ;;
4439             -W*,*)                echo $flag              ;;
4440             -f*-*|-W*|-mimpure-text)                      ;;
4441             -shared)              echo -G                 ;;
4442             *)                    echo $flag              ;;
4443         esac
4444     done
4445 }
4446
4447 probe_cc(){
4448     pfx=$1
4449     _cc=$2
4450     first=$3
4451
4452     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4453     unset _ld_o _ldflags _ld_lib _ld_path
4454     unset _depflags _DEPCMD _DEPFLAGS
4455     _flags_filter=echo
4456
4457     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4458         true # no-op to avoid reading stdin in following checks
4459     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4460         _type=llvm_gcc
4461         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4462         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4463         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4464         _cflags_speed='-O3'
4465         _cflags_size='-Os'
4466     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4467         _type=gcc
4468         gcc_version=$($_cc --version | head -n1)
4469         gcc_basever=$($_cc -dumpversion)
4470         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4471         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4472         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4473         case $gcc_basever in
4474             2) ;;
4475             2.*) ;;
4476             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4477         esac
4478         if [ "$first" = true ]; then
4479             case $gcc_basever in
4480                 4.2*)
4481                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4482             esac
4483         fi
4484         _cflags_speed='-O3'
4485         _cflags_size='-Os'
4486     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4487         _type=icc
4488         _ident=$($_cc --version | head -n1)
4489         _depflags='-MMD'
4490         _cflags_speed='-O3'
4491         _cflags_size='-Os'
4492         _cflags_noopt='-O1'
4493         _flags_filter=icc_flags
4494     elif $_cc -v 2>&1 | grep -q xlc; then
4495         _type=xlc
4496         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4497         _cflags_speed='-O5'
4498         _cflags_size='-O5 -qcompact'
4499     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4500         test -d "$sysroot" || die "No valid sysroot specified."
4501         _type=armcc
4502         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4503         armcc_conf="$PWD/armcc.conf"
4504         $_cc --arm_linux_configure                 \
4505              --arm_linux_config_file="$armcc_conf" \
4506              --configure_sysroot="$sysroot"        \
4507              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4508              die "Error creating armcc configuration file."
4509         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4510         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4511         as_default="${cross_prefix}gcc"
4512         _depflags='-MMD'
4513         _cflags_speed='-O3'
4514         _cflags_size='-Os'
4515     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4516         _type=clang
4517         _ident=$($_cc --version 2>/dev/null | head -n1)
4518         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4519         _cflags_speed='-O3'
4520         _cflags_size='-Oz'
4521     elif $_cc -V 2>&1 | grep -q Sun; then
4522         _type=suncc
4523         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4524         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4525         _DEPFLAGS='-xM1 -xc99'
4526         _ldflags='-std=c99'
4527         _cflags_speed='-O5'
4528         _cflags_size='-O5 -xspace'
4529         _flags_filter=suncc_flags
4530     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4531         _type=pathscale
4532         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4533         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4534         _cflags_speed='-O2'
4535         _cflags_size='-Os'
4536         _flags_filter='filter_out -Wdisabled-optimization'
4537     elif $_cc -v 2>&1 | grep -q Open64; then
4538         _type=open64
4539         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4540         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4541         _cflags_speed='-O2'
4542         _cflags_size='-Os'
4543         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4544     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4545         _type=armasm
4546         _ident=$($_cc | head -n1)
4547         # 4509: "This form of conditional instruction is deprecated"
4548         _flags="-nologo -ignore 4509"
4549         _flags_filter=armasm_flags
4550     elif $_cc 2>&1 | grep -q Intel; then
4551         _type=icl
4552         _ident=$($_cc 2>&1 | head -n1)
4553         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4554         # Not only is O3 broken on 13.x+ but it is slower on all previous
4555         # versions (tested) as well.
4556         _cflags_speed="-O2"
4557         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4558         if $_cc 2>&1 | grep -q Linker; then
4559             _ld_o='-out:$@'
4560         else
4561             _ld_o='-Fe$@'
4562         fi
4563         _cc_o='-Fo$@'
4564         _cc_e='-P'
4565         _flags_filter=icl_flags
4566         _ld_lib='lib%.a'
4567         _ld_path='-libpath:'
4568         # -Qdiag-error to make icl error when seeing certain unknown arguments
4569         _flags='-nologo -Qdiag-error:4044,10157'
4570         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4571         # with MSVC which enables it by default.
4572         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4573         disable stripping
4574     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4575         # lld can emulate multiple different linkers; in ms link.exe mode,
4576         # the -? parameter gives the help output which contains an identifyable
4577         # string, while it gives an error in other modes.
4578         _type=lld-link
4579         # The link.exe mode doesn't have a switch for getting the version,
4580         # but we can force it back to gnu mode and get the version from there.
4581         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4582         _ld_o='-out:$@'
4583         _flags_filter=msvc_flags
4584         _ld_lib='lib%.a'
4585         _ld_path='-libpath:'
4586     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4587         _type=msvc
4588         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4589         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4590         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4591         _cflags_speed="-O2"
4592         _cflags_size="-O1"
4593         _cflags_noopt="-O1"
4594         if $_cc -nologo- 2>&1 | grep -q Linker; then
4595             _ld_o='-out:$@'
4596         else
4597             _ld_o='-Fe$@'
4598         fi
4599         _cc_o='-Fo$@'
4600         _cc_e='-P -Fi$@'
4601         _flags_filter=msvc_flags
4602         _ld_lib='lib%.a'
4603         _ld_path='-libpath:'
4604         _flags='-nologo'
4605         disable stripping
4606     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4607         _type=cparser
4608         _ident=$($_cc --version | head -n1)
4609         _depflags='-MMD'
4610         _cflags_speed='-O4'
4611         _cflags_size='-O2'
4612         _flags_filter=cparser_flags
4613     fi
4614
4615     eval ${pfx}_type=\$_type
4616     eval ${pfx}_ident=\$_ident
4617 }
4618
4619 set_ccvars(){
4620     eval ${1}_C=\${_cc_c-\${${1}_C}}
4621     eval ${1}_E=\${_cc_e-\${${1}_E}}
4622     eval ${1}_O=\${_cc_o-\${${1}_O}}
4623
4624     if [ -n "$_depflags" ]; then
4625         eval ${1}_DEPFLAGS=\$_depflags
4626     else
4627         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4628         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4629         eval DEP${1}FLAGS=\$_flags
4630     fi
4631 }
4632
4633 probe_cc cc "$cc" "true"
4634 cflags_filter=$_flags_filter
4635 cflags_speed=$_cflags_speed
4636 cflags_size=$_cflags_size
4637 cflags_noopt=$_cflags_noopt
4638 add_cflags $_flags $_cflags
4639 cc_ldflags=$_ldflags
4640 set_ccvars CC
4641 set_ccvars CXX
4642
4643 probe_cc hostcc "$host_cc"
4644 host_cflags_filter=$_flags_filter
4645 host_cflags_speed=$_cflags_speed
4646 add_host_cflags  $_flags $_cflags
4647 set_ccvars HOSTCC
4648
4649 test -n "$cc_type" && enable $cc_type ||
4650     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4651
4652 : ${as_default:=$cc}
4653 : ${objcc_default:=$cc}
4654 : ${dep_cc_default:=$cc}
4655 : ${ld_default:=$cc}
4656 : ${host_ld_default:=$host_cc}
4657 set_default ar as objcc dep_cc ld ln_s host_ld windres
4658
4659 probe_cc as "$as"
4660 asflags_filter=$_flags_filter
4661 add_asflags $_flags $_cflags
4662 set_ccvars AS
4663
4664 probe_cc objcc "$objcc"
4665 objcflags_filter=$_flags_filter
4666 add_objcflags $_flags $_cflags
4667 set_ccvars OBJC
4668
4669 probe_cc ld "$ld"
4670 ldflags_filter=$_flags_filter
4671 add_ldflags $_flags $_ldflags
4672 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4673 LD_O=${_ld_o-$LD_O}
4674 LD_LIB=${_ld_lib-$LD_LIB}
4675 LD_PATH=${_ld_path-$LD_PATH}
4676
4677 probe_cc hostld "$host_ld"
4678 host_ldflags_filter=$_flags_filter
4679 add_host_ldflags $_flags $_ldflags
4680 HOSTLD_O=${_ld_o-$HOSTLD_O}
4681
4682 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4683     probe_cc depcc "$dep_cc"
4684     CCDEP=${_DEPCMD:-$DEPCMD}
4685     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4686     DEPCCFLAGS=$_flags
4687 fi
4688
4689 if $ar 2>&1 | grep -q Microsoft; then
4690     arflags="-nologo"
4691     ar_o='-out:$@'
4692 elif $ar 2>&1 | grep -q "\[D\] "; then
4693     arflags="rcD"
4694     ar_o='$@'
4695 else
4696     arflags="rc"
4697     ar_o='$@'
4698 fi
4699
4700 add_cflags $extra_cflags
4701 add_cxxflags $extra_cxxflags
4702 add_objcflags $extra_objcflags
4703 add_asflags $extra_cflags
4704
4705 if test -n "$sysroot"; then
4706     case "$cc_type" in
4707         gcc|llvm_gcc|clang)
4708             add_cppflags --sysroot="$sysroot"
4709             add_ldflags --sysroot="$sysroot"
4710         ;;
4711     esac
4712 fi
4713
4714 if test "$cpu" = host; then
4715     enabled cross_compile &&
4716         die "--cpu=host makes no sense when cross-compiling."
4717
4718     case "$cc_type" in
4719         gcc|llvm_gcc)
4720             check_native(){
4721                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4722                 sed -n "/cc1.*$1=/{
4723                             s/.*$1=\\([^ ]*\\).*/\\1/
4724                             p
4725                             q
4726                         }" $TMPE
4727             }
4728             cpu=$(check_native -march || check_native -mcpu)
4729         ;;
4730         clang)
4731             check_native(){
4732                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4733                 sed -n "/cc1.*-target-cpu /{
4734                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4735                             p
4736                             q
4737                         }" $TMPE
4738             }
4739             cpu=$(check_native -march)
4740         ;;
4741     esac
4742
4743     test "${cpu:-host}" = host &&
4744         die "--cpu=host not supported with compiler $cc"
4745 fi
4746
4747 # Deal with common $arch aliases
4748 case "$arch" in
4749     aarch64|arm64)
4750         arch="aarch64"
4751     ;;
4752     arm*|iPad*|iPhone*)
4753         arch="arm"
4754     ;;
4755     mips*|IP*)
4756         case "$arch" in
4757         *el)
4758             add_cppflags -EL
4759             add_ldflags -EL
4760         ;;
4761         *eb)
4762             add_cppflags -EB
4763             add_ldflags -EB
4764         ;;
4765         esac
4766         arch="mips"
4767     ;;
4768     parisc*|hppa*)
4769         arch="parisc"
4770     ;;
4771     "Power Macintosh"|ppc*|powerpc*)
4772         arch="ppc"
4773     ;;
4774     s390|s390x)
4775         arch="s390"
4776     ;;
4777     sh4|sh)
4778         arch="sh4"
4779     ;;
4780     sun4*|sparc*)
4781         arch="sparc"
4782     ;;
4783     tilegx|tile-gx)
4784         arch="tilegx"
4785     ;;
4786     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4787         arch="x86"
4788     ;;
4789 esac
4790
4791 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4792 enable $arch
4793
4794 # Add processor-specific flags
4795 if enabled aarch64; then
4796
4797     case $cpu in
4798         armv*)
4799             cpuflags="-march=$cpu"
4800         ;;
4801         *)
4802             cpuflags="-mcpu=$cpu"
4803         ;;
4804     esac
4805
4806 elif enabled alpha; then
4807
4808     cpuflags="-mcpu=$cpu"
4809
4810 elif enabled arm; then
4811
4812     check_arm_arch() {
4813         test_cpp_condition stddef.h \
4814             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4815             $cpuflags
4816     }
4817
4818     probe_arm_arch() {
4819         if   check_arm_arch 4;        then echo armv4
4820         elif check_arm_arch 4T;       then echo armv4t
4821         elif check_arm_arch 5;        then echo armv5
4822         elif check_arm_arch 5E;       then echo armv5e
4823         elif check_arm_arch 5T;       then echo armv5t
4824         elif check_arm_arch 5TE;      then echo armv5te
4825         elif check_arm_arch 5TEJ;     then echo armv5te
4826         elif check_arm_arch 6;        then echo armv6
4827         elif check_arm_arch 6J;       then echo armv6j
4828         elif check_arm_arch 6K;       then echo armv6k
4829         elif check_arm_arch 6Z;       then echo armv6z
4830         elif check_arm_arch 6KZ;      then echo armv6zk
4831         elif check_arm_arch 6ZK;      then echo armv6zk
4832         elif check_arm_arch 6T2;      then echo armv6t2
4833         elif check_arm_arch 7;        then echo armv7
4834         elif check_arm_arch 7A  7_A;  then echo armv7-a
4835         elif check_arm_arch 7S;       then echo armv7-a
4836         elif check_arm_arch 7R  7_R;  then echo armv7-r
4837         elif check_arm_arch 7M  7_M;  then echo armv7-m
4838         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4839         elif check_arm_arch 8A  8_A;  then echo armv8-a
4840         fi
4841     }
4842
4843     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4844
4845     case $cpu in
4846         armv*)
4847             cpuflags="-march=$cpu"
4848             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4849         ;;
4850         *)
4851             cpuflags="-mcpu=$cpu"
4852             case $cpu in
4853                 cortex-a*)                               subarch=armv7a  ;;
4854                 cortex-r*)                               subarch=armv7r  ;;
4855                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4856                 arm11*)                                  subarch=armv6   ;;
4857                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4858                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4859                 *)                             subarch=$(probe_arm_arch) ;;
4860             esac
4861         ;;
4862     esac
4863
4864     case "$subarch" in
4865         armv5t*)    enable fast_clz                ;;
4866         armv[6-8]*)
4867             enable fast_clz
4868             disabled fast_unaligned || enable fast_unaligned
4869             ;;
4870     esac
4871
4872 elif enabled avr32; then
4873
4874     case $cpu in
4875         ap7[02]0[0-2])
4876             subarch="avr32_ap"
4877             cpuflags="-mpart=$cpu"
4878         ;;
4879         ap)
4880             subarch="avr32_ap"
4881             cpuflags="-march=$cpu"
4882         ;;
4883         uc3[ab]*)
4884             subarch="avr32_uc"
4885             cpuflags="-mcpu=$cpu"
4886         ;;
4887         uc)
4888             subarch="avr32_uc"
4889             cpuflags="-march=$cpu"
4890         ;;
4891     esac
4892
4893 elif enabled bfin; then
4894
4895     cpuflags="-mcpu=$cpu"
4896
4897 elif enabled mips; then
4898
4899     cpuflags="-march=$cpu"
4900
4901     if [ "$cpu" != "generic" ]; then
4902         disable mips32r2
4903         disable mips32r5
4904         disable mips64r2
4905         disable mips32r6
4906         disable mips64r6
4907         disable loongson2
4908         disable loongson3
4909
4910         case $cpu in
4911             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4912                 enable mips32r2
4913                 disable msa
4914             ;;
4915             p5600|i6400|p6600)
4916                 disable mipsdsp
4917                 disable mipsdspr2
4918             ;;
4919             loongson*)
4920                 enable loongson2
4921                 enable loongson3
4922                 enable local_aligned
4923                 enable simd_align_16
4924                 enable fast_64bit
4925                 enable fast_clz
4926                 enable fast_cmov
4927                 enable fast_unaligned
4928                 disable aligned_stack
4929                 disable mipsdsp
4930                 disable mipsdspr2
4931                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4932                 if [ $cc == gcc ]; then
4933                     gcc_version=$(gcc -dumpversion)
4934                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4935                         expensive_optimization_flag=""
4936                     else
4937                         expensive_optimization_flag="-fno-expensive-optimizations"
4938                     fi
4939                 fi
4940                 case $cpu in
4941                     loongson3*)
4942                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4943                     ;;
4944                     loongson2e)
4945                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4946                     ;;
4947                     loongson2f)
4948                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4949                     ;;
4950                 esac
4951             ;;
4952             *)
4953                 # Unknown CPU. Disable everything.
4954                 warn "unknown CPU. Disabling all MIPS optimizations."
4955                 disable mipsfpu
4956                 disable mipsdsp
4957                 disable mipsdspr2
4958                 disable msa
4959                 disable mmi
4960             ;;
4961         esac
4962
4963         case $cpu in
4964             24kc)
4965                 disable mipsfpu
4966                 disable mipsdsp
4967                 disable mipsdspr2
4968             ;;
4969             24kf*)
4970                 disable mipsdsp
4971                 disable mipsdspr2
4972             ;;
4973             24kec|34kc|1004kc)
4974                 disable mipsfpu
4975                 disable mipsdspr2
4976             ;;
4977             24kef*|34kf*|1004kf*)
4978                 disable mipsdspr2
4979             ;;
4980             74kc)
4981                 disable mipsfpu
4982             ;;
4983             p5600)
4984                 enable mips32r5
4985                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4986             ;;
4987             i6400)
4988                 enable mips64r6
4989                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4990             ;;
4991             p6600)
4992                 enable mips64r6
4993                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4994             ;;
4995         esac
4996     else
4997         # We do not disable anything. Is up to the user to disable the unwanted features.
4998         warn 'generic cpu selected'
4999     fi
5000
5001 elif enabled ppc; then
5002
5003     disable ldbrx
5004
5005     case $(tolower $cpu) in
5006         601|ppc601|powerpc601)
5007             cpuflags="-mcpu=601"
5008             disable altivec
5009         ;;
5010         603*|ppc603*|powerpc603*)
5011             cpuflags="-mcpu=603"
5012             disable altivec
5013         ;;
5014         604*|ppc604*|powerpc604*)
5015             cpuflags="-mcpu=604"
5016             disable altivec
5017         ;;
5018         g3|75*|ppc75*|powerpc75*)
5019             cpuflags="-mcpu=750"
5020             disable altivec
5021         ;;
5022         g4|745*|ppc745*|powerpc745*)
5023             cpuflags="-mcpu=7450"
5024             disable vsx
5025         ;;
5026         74*|ppc74*|powerpc74*)
5027             cpuflags="-mcpu=7400"
5028             disable vsx
5029         ;;
5030         g5|970|ppc970|powerpc970)
5031             cpuflags="-mcpu=970"
5032             disable vsx
5033         ;;
5034         power[3-6]*)
5035             cpuflags="-mcpu=$cpu"
5036             disable vsx
5037         ;;
5038         power[7-8]*)
5039             cpuflags="-mcpu=$cpu"
5040         ;;
5041         cell)
5042             cpuflags="-mcpu=cell"
5043             enable ldbrx
5044             disable vsx
5045         ;;
5046         e500mc)
5047             cpuflags="-mcpu=e500mc"
5048             disable altivec
5049         ;;
5050         e500v2)
5051             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5052             disable altivec
5053             disable dcbzl
5054         ;;
5055         e500)
5056             cpuflags="-mcpu=8540 -mhard-float"
5057             disable altivec
5058             disable dcbzl
5059         ;;
5060     esac
5061
5062 elif enabled sparc; then
5063
5064     case $cpu in
5065         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5066             cpuflags="-mcpu=$cpu"
5067         ;;
5068         ultrasparc*|niagara[234])
5069             cpuflags="-mcpu=$cpu"
5070         ;;
5071     esac
5072
5073 elif enabled x86; then
5074
5075     case $cpu in
5076         i[345]86|pentium)
5077             cpuflags="-march=$cpu"
5078             disable i686
5079             disable mmx
5080         ;;
5081         # targets that do NOT support nopl and conditional mov (cmov)
5082         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5083             cpuflags="-march=$cpu"
5084             disable i686
5085         ;;
5086         # targets that do support nopl and conditional mov (cmov)
5087         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5088         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5089         |amdfam10|barcelona|b[dt]ver*|znver*)
5090             cpuflags="-march=$cpu"
5091             enable i686
5092             enable fast_cmov
5093         ;;
5094         # targets that do support conditional mov but on which it's slow
5095         pentium4|pentium4m|prescott|nocona)
5096             cpuflags="-march=$cpu"
5097             enable i686
5098             disable fast_cmov
5099         ;;
5100     esac
5101
5102 fi
5103
5104 if [ "$cpu" != generic ]; then
5105     add_cflags  $cpuflags
5106     add_asflags $cpuflags
5107     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5108 fi
5109
5110 # compiler sanity check
5111 test_exec <<EOF
5112 int main(void){ return 0; }
5113 EOF
5114 if test "$?" != 0; then
5115     echo "$cc is unable to create an executable file."
5116     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5117         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5118         echo "Only do this if you know what cross compiling means."
5119     fi
5120     die "C compiler test failed."
5121 fi
5122
5123 add_cppflags -D_ISOC99_SOURCE
5124 add_cxxflags -D__STDC_CONSTANT_MACROS
5125 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5126
5127 # some compilers silently accept -std=c11, so we also need to check that the
5128 # version macro is defined properly
5129 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5130     add_cflags -std=c11 ||
5131     check_cflags -std=c99
5132
5133 check_cppflags -D_FILE_OFFSET_BITS=64
5134 check_cppflags -D_LARGEFILE_SOURCE
5135
5136 add_host_cppflags -D_ISOC99_SOURCE
5137 check_host_cflags -std=c99
5138 check_host_cflags -Wall
5139 check_host_cflags $host_cflags_speed
5140
5141 check_64bit(){
5142     arch32=$1
5143     arch64=$2
5144     expr=${3:-'sizeof(void *) > 4'}
5145     test_code cc "" "int test[2*($expr) - 1]" &&
5146         subarch=$arch64 || subarch=$arch32
5147     enable $subarch
5148 }
5149
5150 case "$arch" in
5151     aarch64|alpha|ia64)
5152         enabled shared && enable_weak pic
5153     ;;
5154     mips)
5155         check_64bit mips mips64 '_MIPS_SIM > 1'
5156         enabled shared && enable_weak pic
5157     ;;
5158     parisc)
5159         check_64bit parisc parisc64
5160         enabled shared && enable_weak pic
5161     ;;
5162     ppc)
5163         check_64bit ppc ppc64
5164         enabled shared && enable_weak pic
5165     ;;
5166     s390)
5167         check_64bit s390 s390x
5168         enabled shared && enable_weak pic
5169     ;;
5170     sparc)
5171         check_64bit sparc sparc64
5172         enabled shared && enable_weak pic
5173     ;;
5174     x86)
5175         check_64bit x86_32 x86_64
5176         # Treat x32 as x64 for now. Note it also needs pic if shared
5177         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5178             subarch=x86_64 && enable x86_64 && disable x86_32
5179         if enabled x86_64; then
5180             enabled shared && enable_weak pic
5181             objformat=elf64
5182         fi
5183     ;;
5184 esac
5185
5186 # OS specific
5187 case $target_os in
5188     aix)
5189         SHFLAGS=-shared
5190         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5191         enabled shared && add_ldflags -Wl,-brtl
5192         arflags='-Xany -r -c'
5193         striptype=""
5194         ;;
5195     android)
5196         disable symver
5197         enable section_data_rel_ro
5198         add_cflags -fPIE
5199         add_ldexeflags -fPIE -pie
5200         SLIB_INSTALL_NAME='$(SLIBNAME)'
5201         SLIB_INSTALL_LINKS=
5202         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5203         ;;
5204     haiku)
5205         prefix_default="/boot/common"
5206         network_extralibs="-lnetwork"
5207         host_extralibs=
5208         ;;
5209     sunos)
5210         SHFLAGS='-shared -Wl,-h,$$(@F)'
5211         enabled x86 && append SHFLAGS -mimpure-text
5212         network_extralibs="-lsocket -lnsl"
5213         add_cppflags -D__EXTENSIONS__
5214         # When using suncc to build, the Solaris linker will mark
5215         # an executable with each instruction set encountered by
5216         # the Solaris assembler.  As our libraries contain their own
5217         # guards for processor-specific code, instead suppress
5218         # generation of the HWCAPS ELF section on Solaris x86 only.
5219         enabled_all suncc x86 &&
5220             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5221             add_ldflags -Wl,-M,mapfile
5222         nm_default='nm -P -g'
5223         striptype=""
5224         version_script='-M'
5225         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5226         ;;
5227     netbsd)
5228         disable symver
5229         oss_indev_extralibs="-lossaudio"
5230         oss_outdev_extralibs="-lossaudio"
5231         enabled gcc || check_ldflags -Wl,-zmuldefs
5232         ;;
5233     openbsd|bitrig)
5234         disable symver
5235         striptype=""
5236         SHFLAGS='-shared'
5237         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5238         SLIB_INSTALL_LINKS=
5239         oss_indev_extralibs="-lossaudio"
5240         oss_outdev_extralibs="-lossaudio"
5241         ;;
5242     dragonfly)
5243         disable symver
5244         ;;
5245     freebsd)
5246         ;;
5247     bsd/os)
5248         add_extralibs -lpoll -lgnugetopt
5249         strip="strip -d"
5250         ;;
5251     darwin)
5252         enabled ppc && add_asflags -force_cpusubtype_ALL
5253         install_name_dir_default='$(SHLIBDIR)'
5254         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5255         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5256         strip="${strip} -x"
5257         add_ldflags -Wl,-dynamic,-search_paths_first
5258         check_cflags -Werror=partial-availability
5259         SLIBSUF=".dylib"
5260         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5261         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5262         enabled x86_64 && objformat="macho64" || objformat="macho32"
5263         enabled_any pic shared x86_64 ||
5264             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5265         check_headers dispatch/dispatch.h &&
5266             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5267         if test -n "$sysroot"; then
5268             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5269             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5270         fi
5271         version_script='-exported_symbols_list'
5272         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5273         ;;
5274     msys*)
5275         die "Native MSYS builds are discouraged, please use the MINGW environment."
5276         ;;
5277     mingw32*|mingw64*)
5278         target_os=mingw32
5279         LIBTARGET=i386
5280         if enabled x86_64; then
5281             LIBTARGET="i386:x86-64"
5282         elif enabled arm; then
5283             LIBTARGET="arm"
5284         elif enabled aarch64; then
5285             LIBTARGET="arm64"
5286         fi
5287         if enabled shared; then
5288             # Cannot build both shared and static libs when using dllimport.
5289             disable static
5290         fi
5291         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5292         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5293         shlibdir_default="$bindir_default"
5294         SLIBPREF=""
5295         SLIBSUF=".dll"
5296         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5297         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5298         if test_cmd lib.exe -list; then
5299             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5300             if enabled x86_64; then
5301                 LIBTARGET=x64
5302             fi
5303         else
5304             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5305         fi
5306         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5307         SLIB_INSTALL_LINKS=
5308         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5309         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5310         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5311         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5312         enabled x86_64 && objformat="win64" || objformat="win32"
5313         dlltool="${cross_prefix}dlltool"
5314         ranlib=:
5315         enable dos_paths
5316         check_ldflags -Wl,--nxcompat,--dynamicbase
5317         # Lets work around some stupidity in binutils.
5318         # ld will strip relocations from executables even though we need them
5319         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5320         # however ld then forgets what the entry point should be (oops) so we
5321         # have to manually (re)set it.
5322         if enabled x86_32; then
5323             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5324         elif enabled x86_64; then
5325             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5326             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5327             # Set image base >4GB for extra entropy with HEASLR
5328             add_ldexeflags -Wl,--image-base,0x140000000
5329             append SHFLAGS -Wl,--image-base,0x180000000
5330         fi
5331         ;;
5332     win32|win64)
5333         disable symver
5334         if enabled shared; then
5335             # Link to the import library instead of the normal static library
5336             # for shared libs.
5337             LD_LIB='%.lib'
5338             # Cannot build both shared and static libs with MSVC or icl.
5339             disable static
5340         fi
5341         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5342         shlibdir_default="$bindir_default"
5343         SLIBPREF=""
5344         SLIBSUF=".dll"
5345         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5346         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5347         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5348         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5349         SLIB_INSTALL_LINKS=
5350         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5351         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5352         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5353         enabled x86_64 && objformat="win64" || objformat="win32"
5354         ranlib=:
5355         enable dos_paths
5356         ;;
5357     cygwin*)
5358         target_os=cygwin
5359         shlibdir_default="$bindir_default"
5360         SLIBPREF="cyg"
5361         SLIBSUF=".dll"
5362         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5363         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5364         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5365         SLIB_INSTALL_LINKS=
5366         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5367         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5368         enabled x86_64 && objformat="win64" || objformat="win32"
5369         enable dos_paths
5370         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5371         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5372         ;;
5373     *-dos|freedos|opendos)
5374         network_extralibs="-lsocket"
5375         objformat="coff"
5376         enable dos_paths
5377         ;;
5378     linux)
5379         enable section_data_rel_ro
5380         enabled_any arm aarch64 && enable_weak linux_perf
5381         ;;
5382     irix*)
5383         target_os=irix
5384         ranlib="echo ignoring ranlib"
5385         ;;
5386     os/2*)
5387         strip="lxlite -CS"
5388         striptype=""
5389         objformat="aout"
5390         add_cppflags -D_GNU_SOURCE
5391         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5392         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5393         LIBSUF="_s.a"
5394         SLIBPREF=""
5395         SLIBSUF=".dll"
5396         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5397         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5398         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5399             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5400             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5401             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5402             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5403         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5404             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5405         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5406         SLIB_INSTALL_LINKS=
5407         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5408         enable dos_paths
5409         enable_weak os2threads
5410         ;;
5411     gnu/kfreebsd)
5412         add_cppflags -D_BSD_SOURCE
5413         ;;
5414     gnu)
5415         ;;
5416     qnx)
5417         add_cppflags -D_QNX_SOURCE
5418         network_extralibs="-lsocket"
5419         ;;
5420     symbian)
5421         SLIBSUF=".dll"
5422         enable dos_paths
5423         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5424         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5425         add_ldflags -Wl,--target1-abs,--no-undefined \
5426                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5427                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5428         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5429                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5430                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5431         ;;
5432     minix)
5433         ;;
5434     none)
5435         ;;
5436     *)
5437         die "Unknown OS '$target_os'."
5438         ;;
5439 esac
5440
5441 # test if creating links works
5442 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5443 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5444 mkdir "$link_dest"
5445 $ln_s "$link_dest" "$link_name"
5446 touch "$link_dest/test_file"
5447 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5448     # create link to source path
5449     [ -e src ] && rm src
5450     $ln_s "$source_path" src
5451     source_link=src
5452 else
5453     # creating directory links doesn't work
5454     # fall back to using the full source path
5455     source_link="$source_path"
5456 fi
5457 # cleanup
5458 rm -r "$link_dest"
5459 rm -r "$link_name"
5460
5461 # determine libc flavour
5462
5463 probe_libc(){
5464     pfx=$1
5465     pfx_no_=${pfx%_}
5466     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5467     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5468         eval ${pfx}libc_type=uclibc
5469         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5470     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5471         eval ${pfx}libc_type=glibc
5472         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5473     # MinGW headers can be installed on Cygwin, so check for newlib first.
5474     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5475         eval ${pfx}libc_type=newlib
5476         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5477     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5478     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5479         eval ${pfx}libc_type=mingw64
5480         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5481             add_compat msvcrt/snprintf.o
5482             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5483         fi
5484         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5485         eval test \$${pfx_no_}cc_type = "gcc" &&
5486             add_${pfx}cppflags -D__printf__=__gnu_printf__
5487         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5488             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5489         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5490     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5491          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5492         eval ${pfx}libc_type=mingw32
5493         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5494             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5495             die "ERROR: MinGW32 runtime version must be >= 3.15."
5496         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5497         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5498             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5499         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5500             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5501         eval test \$${pfx_no_}cc_type = "gcc" &&
5502             add_${pfx}cppflags -D__printf__=__gnu_printf__
5503         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5504     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5505         eval ${pfx}libc_type=msvcrt
5506         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5507             if [ "$pfx" = host_ ]; then
5508                 add_host_cppflags -Dsnprintf=_snprintf
5509             else
5510                 add_compat strtod.o strtod=avpriv_strtod
5511                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5512                                              _snprintf=avpriv_snprintf  \
5513                                              vsnprintf=avpriv_vsnprintf
5514             fi
5515         fi
5516         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5517         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5518         # 0x601 by default unless something else is set by the user.
5519         # This can easily lead to us detecting functions only present
5520         # in such new versions and producing binaries requiring windows 7.0.
5521         # Therefore explicitly set the default to Vista unless the user has
5522         # set something else on the command line.
5523         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5524         # family. For these cases, configure is free to use any functions
5525         # found in the SDK headers by default. (Alternatively, we could force
5526         # _WIN32_WINNT to 0x0602 in that case.)
5527         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5528             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5529 #ifdef WINAPI_FAMILY
5530 #include <winapifamily.h>
5531 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5532 #error not desktop
5533 #endif
5534 #endif
5535 EOF
5536         if [ "$pfx" = "" ]; then
5537             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5538             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5539         fi
5540     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5541         eval ${pfx}libc_type=klibc
5542     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5543         eval ${pfx}libc_type=bionic
5544     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5545         eval ${pfx}libc_type=solaris
5546         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5547     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5548         eval ${pfx}libc_type=djgpp
5549         add_cppflags -U__STRICT_ANSI__
5550         add_cflags "-include $source_path/compat/djgpp/math.h"
5551         add_compat djgpp/math.o
5552     fi
5553     test_${pfx}cc <<EOF
5554 #include <time.h>
5555 void *v = localtime_r;
5556 EOF
5557 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5558 #include <time.h>
5559 void *v = localtime_r;
5560 EOF
5561
5562     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5563 }
5564
5565 probe_libc
5566 probe_libc host_
5567
5568 # hacks for compiler/libc/os combinations
5569
5570 case $libc_type in
5571     bionic)
5572         add_compat strtod.o strtod=avpriv_strtod
5573         ;;
5574 esac
5575
5576 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5577     add_cppflags '-I\$(SRC_PATH)/compat/float'
5578
5579 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5580
5581 set_default libdir
5582 : ${shlibdir_default:="$libdir"}
5583 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5584
5585 set_default $PATHS_LIST
5586 set_default nm
5587
5588 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5589
5590 enable_weak_pic() {
5591     disabled pic && return
5592     enable pic
5593     add_cppflags -DPIC
5594     case "$target_os" in
5595     mingw*|cygwin*|win*)
5596         ;;
5597     *)
5598         add_cflags -fPIC
5599         add_asflags -fPIC
5600         ;;
5601     esac
5602 }
5603
5604 enabled pic && enable_weak_pic
5605
5606 test_cc <<EOF || die "Symbol mangling check failed."
5607 int ff_extern;
5608 EOF
5609 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5610 extern_prefix=${sym%%ff_extern*}
5611
5612 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5613
5614 for restrict_keyword in restrict __restrict__ __restrict ""; do
5615     test_code cc "" "char * $restrict_keyword p" && break
5616 done
5617
5618 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5619
5620 # The global variable ensures the bits appear unchanged in the object file.
5621 test_cc <<EOF || die "endian test failed"
5622 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5623 EOF
5624 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5625
5626 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5627
5628 if ! enabled ppc64 || enabled bigendian; then
5629     disable vsx
5630 fi
5631
5632 check_gas() {
5633     log "check_gas using '$as' as AS"
5634     # :vararg is used on aarch64, arm and ppc altivec
5635     check_as vararg "
5636 .macro m n, y:vararg=0
5637 \n: .int \y
5638 .endm
5639 m x" || return 1
5640     # .altmacro is only used in arm asm
5641     ! enabled arm || check_as gnu_as ".altmacro"
5642 }
5643
5644 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5645     nogas=:
5646     enabled_any arm aarch64 && nogas=die
5647     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5648     as_noop=-v
5649
5650     case $as_type in
5651         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5652         gcc)  gaspp_as_type=gas ;;
5653         *)    gaspp_as_type=$as_type ;;
5654     esac
5655
5656     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5657
5658     test "${as#*gas-preprocessor.pl}" != "$as" ||
5659     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5660         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5661
5662     if ! check_gas ; then
5663         as=${gas:=$as}
5664         check_gas || \
5665             $nogas "GNU assembler not found, install/update gas-preprocessor"
5666     fi
5667
5668     check_as as_func ".func test
5669                       .endfunc"
5670 fi
5671
5672 check_inline_asm inline_asm_labels '"1:\n"'
5673
5674 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5675
5676 if enabled aarch64; then
5677     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5678     # internal assembler in clang 3.3 does not support this instruction
5679     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5680     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5681
5682     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5683
5684 elif enabled alpha; then
5685
5686     check_cflags -mieee
5687
5688 elif enabled arm; then
5689
5690     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5691     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5692 float func(float a, float b){ return a+b; }
5693 EOF
5694     enabled thumb && check_cflags -mthumb || check_cflags -marm
5695
5696     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5697         :
5698     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5699         :
5700     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5701         case "${cross_prefix:-$cc}" in
5702             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5703             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5704 __asm__ (".eabi_attribute 28, 1");
5705 int main(void) { return 0; }
5706 EOF
5707         esac
5708         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5709     fi
5710
5711     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5712     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5713     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5714     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5715     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5716     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5717     enabled setend  && check_insn setend  'setend be'
5718
5719     [ $target_os = linux ] || [ $target_os = android ] ||
5720         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5721             $ARCH_EXT_LIST_ARM
5722
5723     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5724
5725     check_as as_arch_directive ".arch armv7-a"
5726     check_as as_dn_directive   "ra .dn d0.i16"
5727     check_as as_fpu_directive  ".fpu neon"
5728
5729     # llvm's integrated assembler supports .object_arch from llvm 3.5
5730     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5731         check_as as_object_arch ".object_arch armv4"
5732
5733     # MS armasm fails to assemble our PIC constructs
5734     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5735
5736 elif enabled mips; then
5737
5738     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5739     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5740     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5741
5742     # Enable minimum ISA based on selected options
5743     if enabled mips64; then
5744         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5745         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5746         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5747     else
5748         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5749         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5750         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5751         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5752     fi
5753
5754     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5755     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5756     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5757     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5758     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5759     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5760
5761     if enabled bigendian && enabled msa; then
5762         disable msa
5763     fi
5764
5765 elif enabled parisc; then
5766
5767     if enabled gcc; then
5768         case $($cc -dumpversion) in
5769             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5770         esac
5771     fi
5772
5773 elif enabled ppc; then
5774
5775     enable local_aligned
5776
5777     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5778     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5779     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5780     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5781
5782     if enabled altivec; then
5783         check_cflags -maltivec -mabi=altivec
5784
5785         # check if our compiler supports Motorola AltiVec C API
5786         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5787                                     vector signed int v2 = (vector signed int) { 1 };
5788                                     v1 = vec_add(v1, v2);"
5789
5790         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5791     fi
5792
5793     if enabled vsx; then
5794         check_cflags -mvsx &&
5795         check_cc vsx altivec.h "int v[4] = { 0 };
5796                                 vector signed int v1 = vec_vsx_ld(0, v);"
5797     fi
5798
5799     if enabled power8; then
5800         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5801     fi
5802
5803 elif enabled x86; then
5804
5805     check_builtin rdtsc    intrin.h   "__rdtsc()"
5806     check_builtin mm_empty mmintrin.h "_mm_empty()"
5807
5808     enable local_aligned
5809
5810     # check whether EBP is available on x86
5811     # As 'i' is stored on the stack, this program will crash
5812     # if the base pointer is used to access it because the
5813     # base pointer is cleared in the inline assembly code.
5814     check_exec_crash <<EOF && enable ebp_available
5815 volatile int i=0;
5816 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5817 return i;
5818 EOF
5819
5820     # check whether EBX is available on x86
5821     check_inline_asm ebx_available '""::"b"(0)' &&
5822         check_inline_asm ebx_available '"":::"%ebx"'
5823
5824     # check whether xmm clobbers are supported
5825     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5826
5827     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5828         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5829
5830     # check whether binutils is new enough to compile SSSE3/MMXEXT
5831     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5832     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5833
5834     probe_x86asm(){
5835         x86asmexe_probe=$1
5836         if test_cmd $x86asmexe_probe -v; then
5837             x86asmexe=$x86asmexe_probe
5838             x86asm_type=nasm
5839             x86asm_debug="-g -F dwarf"
5840             X86ASMDEP=
5841             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5842         elif test_cmd $x86asmexe_probe --version; then
5843             x86asmexe=$x86asmexe_probe
5844             x86asm_type=yasm
5845             x86asm_debug="-g dwarf2"
5846             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5847             X86ASM_DEPFLAGS=
5848         fi
5849         check_x86asm x86asm "movbe ecx, [5]"
5850     }
5851
5852     if ! disabled_any asm mmx x86asm; then
5853         disable x86asm
5854         for program in $x86asmexe nasm yasm; do
5855             probe_x86asm $program && break
5856         done
5857         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5858         X86ASMFLAGS="-f $objformat"
5859         enabled pic               && append X86ASMFLAGS "-DPIC"
5860         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5861         case "$objformat" in
5862             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5863         esac
5864
5865         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5866         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5867         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5868         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5869         check_x86asm cpunop          "CPU amdnop"
5870     fi
5871
5872     case "$cpu" in
5873         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5874             disable fast_clz
5875         ;;
5876     esac
5877
5878 fi
5879
5880 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5881
5882 check_ldflags -Wl,--as-needed
5883 check_ldflags -Wl,-z,noexecstack
5884
5885 if ! disabled network; then
5886     check_func getaddrinfo $network_extralibs
5887     check_func inet_aton $network_extralibs
5888
5889     check_type netdb.h "struct addrinfo"
5890     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5891     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5892     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5893     check_type poll.h "struct pollfd"
5894     check_type netinet/sctp.h "struct sctp_event_subscribe"
5895     check_struct "sys/socket.h" "struct msghdr" msg_flags
5896     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5897     check_type netinet/in.h "struct sockaddr_in6"
5898     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5899     check_type "sys/types.h sys/socket.h" socklen_t
5900
5901     # Prefer arpa/inet.h over winsock2
5902     if check_headers arpa/inet.h ; then
5903         check_func closesocket
5904     elif check_headers winsock2.h ; then
5905         check_func_headers winsock2.h closesocket -lws2 &&
5906             network_extralibs="-lws2" ||
5907         { check_func_headers winsock2.h closesocket -lws2_32 &&
5908             network_extralibs="-lws2_32"; } || disable winsock2_h network
5909         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5910
5911         check_type ws2tcpip.h socklen_t
5912         check_type ws2tcpip.h "struct addrinfo"
5913         check_type ws2tcpip.h "struct group_source_req"
5914         check_type ws2tcpip.h "struct ip_mreq_source"
5915         check_type ws2tcpip.h "struct ipv6_mreq"
5916         check_type winsock2.h "struct pollfd"
5917         check_struct winsock2.h "struct sockaddr" sa_len
5918         check_type ws2tcpip.h "struct sockaddr_in6"
5919         check_type ws2tcpip.h "struct sockaddr_storage"
5920     else
5921         disable network
5922     fi
5923 fi
5924
5925 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5926 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5927 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5928 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5929 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5930 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5931 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5932
5933 case "$custom_allocator" in
5934     jemalloc)
5935         # jemalloc by default does not use a prefix
5936         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5937     ;;
5938     tcmalloc)
5939         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
5940         malloc_prefix=tc_
5941     ;;
5942 esac
5943
5944 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5945 check_func  ${malloc_prefix}memalign            && enable memalign
5946 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5947
5948 check_func  access
5949 check_func_headers stdlib.h arc4random
5950 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
5951 check_func  fcntl
5952 check_func  fork
5953 check_func  gethrtime
5954 check_func  getopt
5955 check_func  getrusage
5956 check_func  gettimeofday
5957 check_func  isatty
5958 check_func  mkstemp
5959 check_func  mmap
5960 check_func  mprotect
5961 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5962 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
5963 check_func  sched_getaffinity
5964 check_func  setrlimit
5965 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5966 check_func  strerror_r
5967 check_func  sysconf
5968 check_func  sysctl
5969 check_func  usleep
5970
5971 check_func_headers conio.h kbhit
5972 check_func_headers io.h setmode
5973 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5974 check_func_headers mach/mach_time.h mach_absolute_time
5975 check_func_headers stdlib.h getenv
5976 check_func_headers sys/stat.h lstat
5977
5978 check_func_headers windows.h GetProcessAffinityMask
5979 check_func_headers windows.h GetProcessTimes
5980 check_func_headers windows.h GetSystemTimeAsFileTime
5981 check_func_headers windows.h LoadLibrary
5982 check_func_headers windows.h MapViewOfFile
5983 check_func_headers windows.h PeekNamedPipe
5984 check_func_headers windows.h SetConsoleTextAttribute
5985 check_func_headers windows.h SetConsoleCtrlHandler
5986 check_func_headers windows.h Sleep
5987 check_func_headers windows.h VirtualAlloc
5988 check_func_headers glob.h glob
5989 enabled xlib &&
5990     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5991
5992 check_headers direct.h
5993 check_headers dirent.h
5994 check_headers dxgidebug.h
5995 check_headers dxva.h
5996 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
5997 check_headers io.h
5998 check_headers linux/perf_event.h
5999 check_headers libcrystalhd/libcrystalhd_if.h
6000 check_headers malloc.h
6001 check_headers net/udplite.h
6002 check_headers poll.h
6003 check_headers sys/param.h
6004 check_headers sys/resource.h
6005 check_headers sys/select.h
6006 check_headers sys/time.h
6007 check_headers sys/un.h
6008 check_headers termios.h
6009 check_headers unistd.h
6010 check_headers valgrind/valgrind.h
6011 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6012 check_headers windows.h
6013 check_headers X11/extensions/XvMClib.h
6014 check_headers asm/types.h
6015
6016 # it seems there are versions of clang in some distros that try to use the
6017 # gcc headers, which explodes for stdatomic
6018 # so we also check that atomics actually work here
6019 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6020
6021 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6022 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6023     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6024 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6025 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6026 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6027
6028 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6029 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6030 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6031
6032 enabled appkit       && check_apple_framework AppKit
6033 enabled audiotoolbox && check_apple_framework AudioToolbox
6034 enabled avfoundation && check_apple_framework AVFoundation
6035 enabled coreimage    && check_apple_framework CoreImage
6036 enabled videotoolbox && check_apple_framework VideoToolbox
6037
6038 check_apple_framework CoreFoundation
6039 check_apple_framework CoreMedia
6040 check_apple_framework CoreVideo
6041
6042 enabled avfoundation && {
6043     disable coregraphics applicationservices
6044     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6045     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6046
6047 enabled videotoolbox && {
6048     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6049     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6050     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6051 }
6052
6053 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6054
6055 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6056 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6057 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6058 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6059 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6060
6061 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6062
6063 if enabled cuda_sdk; then
6064     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
6065     enable cuda_nvcc
6066 fi
6067
6068 if ! disabled ffnvcodec; then
6069     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6070     check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.0" "$ffnv_hdr_list" "" || \
6071       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.8 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6072       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.9 ffnvcodec < 8.2" "$ffnv_hdr_list" "" || \
6073       check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.9 ffnvcodec < 8.1" "$ffnv_hdr_list" ""
6074 fi
6075
6076 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6077
6078 if ! disabled w32threads && ! enabled pthreads; then
6079     check_func_headers "windows.h process.h" _beginthreadex &&
6080         check_type "windows.h" CONDITION_VARIABLE &&
6081         check_type "windows.h" INIT_ONCE &&
6082         enable w32threads || disable w32threads
6083     if ! enabled w32threads && enabled winrt; then
6084         check_func_headers "windows.h" CreateThread &&
6085             enable w32threads || disable w32threads
6086     fi
6087 fi
6088
6089 # check for some common methods of building with pthread support
6090 # do this before the optional library checks as some of them require pthreads
6091 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6092     if check_lib pthreads pthread.h pthread_join   -pthread &&
6093        check_lib pthreads pthread.h pthread_create -pthread; then
6094         add_cflags -pthread
6095     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6096          check_lib pthreads pthread.h pthread_create -pthreads; then
6097         add_cflags -pthreads
6098     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6099          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6100         add_cflags -ldl -pthread
6101     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6102          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6103         :
6104     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6105          check_lib pthreads pthread.h pthread_create -lpthread; then
6106         :
6107     elif check_func pthread_join && check_func pthread_create; then
6108         enable pthreads
6109     fi
6110     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6111
6112     if enabled pthreads; then
6113         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6114         check_func pthread_cancel $pthreads_extralibs
6115     fi
6116 fi
6117
6118 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6119                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6120 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6121 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6122
6123 # On some systems dynamic loading requires no extra linker flags
6124 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6125
6126 check_lib libm math.h sin -lm
6127
6128 atan2f_args=2
6129 copysign_args=2
6130 hypot_args=2
6131 ldexpf_args=2
6132 powf_args=2
6133
6134 for func in $MATH_FUNCS; do
6135     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6136 done
6137
6138 for func in $COMPLEX_FUNCS; do
6139     eval check_complexfunc $func \${${func}_args:-1}
6140 done
6141
6142 # these are off by default, so fail if requested and not available
6143 enabled cuda_nvcc         && { check_nvcc || die "ERROR: failed checking for nvcc."; }
6144 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6145 enabled decklink          && { require_headers DeckLinkAPI.h &&
6146                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6147 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6148 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6149 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6150 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6151 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6152 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6153 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6154                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6155                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6156 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6157 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6158 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6159 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6160 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6161 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6162                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6163                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6164 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6165 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6166 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.2.1" "dav1d/dav1d.h" dav1d_version
6167 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6168 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6169 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6170 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6171                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6172                                  warn "using libfdk without pkg-config"; } }
6173 flite_extralibs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
6174 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6175 enabled fontconfig        && enable libfontconfig
6176 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6177 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6178 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6179 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6180                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6181 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6182                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6183                                done || die "ERROR: libgsm not found"; }
6184 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6185 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6186 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6187 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6188 # While it may appear that require is being used as a pkg-config
6189 # fallback for libmfx, it is actually being used to detect a different
6190 # installation route altogether.  If libmfx is installed via the Intel
6191 # Media SDK or Intel Media Server Studio, these don't come with
6192 # pkg-config support.  Instead, users should make sure that the build
6193 # can find the libraries and headers through other means.
6194 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6195                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6196 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6197 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6198 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_load ||
6199                                require libmysofa mysofa.h mysofa_load -lmysofa $zlib_extralibs; }
6200 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6201                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6202                                die "ERROR: libnpp not found"; }
6203 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6204 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6205 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6206                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6207                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6208                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6209 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6210 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6211                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6212 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6213 enabled libopus           && {
6214     enabled libopus_decoder && {
6215         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6216     }
6217     enabled libopus_encoder && {
6218         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6219     }
6220 }
6221 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6222 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6223 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6224 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6225 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6226 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6227                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6228 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6229 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6230 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6231 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6232 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6233 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6234 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6235 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6236 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6237 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6238                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6239                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6240 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6241 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6242 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6243 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6244 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6245                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6246
6247 enabled libvpx            && {
6248     enabled libvpx_vp8_decoder && {
6249         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6250             check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp8_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
6251     }
6252     enabled libvpx_vp8_encoder && {
6253         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6254             check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp8_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
6255     }
6256     enabled libvpx_vp9_decoder && {
6257         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6258             check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
6259     }
6260     enabled libvpx_vp9_encoder && {
6261         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6262             check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
6263     }
6264     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6265         die "libvpx enabled but no supported decoders found"
6266     fi
6267 }
6268
6269 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6270 enabled libwebp           && {
6271     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6272     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6273 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6274                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6275                                  warn "using libx264 without pkg-config"; } } &&
6276                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6277                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6278 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6279                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6280 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6281 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6282 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6283 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6284 enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new
6285 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6286                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6287                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6288 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6289 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6290                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6291                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6292                                die "ERROR: mbedTLS not found"; }
6293 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6294 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6295                                { ! enabled cross_compile &&
6296                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6297                                  add_ldflags -L/opt/vc/lib/ &&
6298                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6299                                die "ERROR: mmal not found" &&
6300                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6301 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6302                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6303                                die "ERROR: openal not found"; } &&
6304                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6305                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6306 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6307                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6308                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6309                                die "ERROR: opencl not found"; } &&
6310                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6311                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6312                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6313 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6314                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6315                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6316                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6317                                die "ERROR: opengl not found."
6318                              }
6319 enabled omx               && require_headers OMX_Core.h
6320 enabled omx_rpi           && { check_headers OMX_Core.h ||
6321                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_headers OMX_Core.h ; } ||
6322                                die "ERROR: OpenMAX IL headers not found"; } && enable omx
6323 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6324                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6325                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6326                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6327                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6328                                die "ERROR: openssl not found"; }
6329 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6330 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6331                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6332                                { enabled libdrm ||
6333                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6334                              }
6335 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6336
6337
6338 if enabled gcrypt; then
6339     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6340     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6341         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6342         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6343         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6344             die "ERROR: gcrypt not found"
6345         add_cflags $gcrypt_cflags
6346     else
6347         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6348     fi
6349 fi
6350
6351 if enabled sdl2; then
6352     SDL2_CONFIG="${cross_prefix}sdl2-config"
6353     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6354     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6355         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6356         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6357         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6358         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6359         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6360             enable sdl2
6361     fi
6362     if test $target_os = "mingw32"; then
6363         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6364     fi
6365 fi
6366
6367 if enabled decklink; then
6368     case $target_os in
6369         mingw32*|mingw64*|win32|win64)
6370             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6371             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6372             ;;
6373     esac
6374 fi
6375
6376 enabled securetransport &&
6377     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6378     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6379         disable securetransport
6380
6381 enabled securetransport &&
6382     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6383
6384 enabled schannel &&
6385     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6386     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6387     schannel_extralibs="-lsecur32" ||
6388         disable schannel
6389
6390 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6391 enabled makeinfo \
6392     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6393     && enable makeinfo_html || disable makeinfo_html
6394 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6395 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6396 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6397 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6398
6399 # check V4L2 codecs available in the API
6400 check_headers linux/fb.h
6401 check_headers linux/videodev2.h
6402 test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6403 check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6404 check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6405 check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6406 check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6407 check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6408 check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6409 check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6410 check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6411 check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6412 check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6413
6414 check_headers sys/videoio.h
6415 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6416
6417 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6418 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6419 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6420 # w32api 3.12 had it defined wrong
6421 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6422
6423 check_type "dshow.h" IBaseFilter
6424
6425 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6426 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6427     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6428     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6429     check_headers "dev/ic/bt8xx.h"
6430
6431 if check_struct sys/soundcard.h audio_buf_info bytes; then
6432     enable_sanitized sys/soundcard.h
6433 else
6434     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6435     #include <sys/soundcard.h>
6436     audio_buf_info abc;
6437 EOF
6438 fi
6439
6440 enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6441     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
6442
6443 enabled libjack &&
6444     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6445
6446 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6447
6448 if enabled libcdio; then
6449     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6450     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6451     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6452     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6453     die "ERROR: No usable libcdio/cdparanoia found"
6454 fi
6455
6456 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6457     disable libxcb_shm libxcb_shape libxcb_xfixes
6458
6459 if enabled libxcb; then
6460     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6461     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6462     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6463 fi
6464
6465 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6466
6467 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6468 # the desktop api partition
6469 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6470 #ifdef WINAPI_FAMILY
6471 #include <winapifamily.h>
6472 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6473 #error desktop, not uwp
6474 #else
6475 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6476 #endif
6477 #else
6478 #error no family set
6479 #endif
6480 EOF
6481
6482 enabled vaapi &&
6483     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6484
6485 if enabled vaapi; then
6486     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6487
6488     if enabled xlib; then
6489         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6490     fi
6491
6492     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6493
6494     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6495     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6496     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6497     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6498     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6499     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6500     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6501 fi
6502
6503 if enabled_all opencl libdrm ; then
6504     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6505         enable opencl_drm_beignet
6506     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6507         enable opencl_drm_arm
6508 fi
6509
6510 if enabled_all opencl vaapi ; then
6511     if enabled opencl_drm_beignet ; then
6512         enable opencl_vaapi_beignet
6513     else
6514         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6515             enable opencl_vaapi_intel_media
6516     fi
6517 fi
6518
6519 if enabled_all opencl dxva2 ; then
6520     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6521         enable opencl_dxva2
6522 fi
6523
6524 if enabled_all opencl d3d11va ; then
6525     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6526         enable opencl_d3d11
6527 fi
6528
6529 enabled vdpau &&
6530     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6531
6532 enabled vdpau &&
6533     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6534
6535 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6536
6537 if enabled x86; then
6538     case $target_os in
6539         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6540             ;;
6541         *)
6542             disable ffnvcodec cuvid nvdec nvenc
6543             ;;
6544     esac
6545 elif enabled ppc64 && ! enabled bigendian; then
6546     case $target_os in
6547         linux)
6548             ;;
6549         *)
6550             disable ffnvcodec cuvid nvdec nvenc
6551             ;;
6552     esac
6553 else
6554     disable ffnvcodec cuvid nvdec nvenc
6555 fi
6556
6557 enabled ffnvcodec && enable cuda
6558
6559 enabled nvenc &&
6560     test_cc -I$source_path <<EOF || disable nvenc
6561 #include <ffnvcodec/nvEncodeAPI.h>
6562 NV_ENCODE_API_FUNCTION_LIST flist;
6563 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6564 int main(void) { return 0; }
6565 EOF
6566
6567 enabled amf &&
6568     check_cpp_condition amf "AMF/core/Version.h" \
6569         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"
6570
6571 # Funny iconv installations are not unusual, so check it after all flags have been set
6572 if enabled libc_iconv; then
6573     check_func_headers iconv.h iconv
6574 elif enabled iconv; then
6575     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6576 fi
6577
6578 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6579
6580 # add some useful compiler flags if supported
6581 check_cflags -Wdeclaration-after-statement
6582 check_cflags -Wall
6583 check_cflags -Wdisabled-optimization
6584 check_cflags -Wpointer-arith
6585 check_cflags -Wredundant-decls
6586 check_cflags -Wwrite-strings
6587 check_cflags -Wtype-limits
6588 check_cflags -Wundef
6589 check_cflags -Wmissing-prototypes
6590 check_cflags -Wno-pointer-to-int-cast
6591 check_cflags -Wstrict-prototypes
6592 check_cflags -Wempty-body
6593
6594 if enabled extra_warnings; then
6595     check_cflags -Wcast-qual
6596     check_cflags -Wextra
6597     check_cflags -Wpedantic
6598 fi
6599
6600 check_disable_warning(){
6601     warning_flag=-W${1#-Wno-}
6602     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6603 }
6604
6605 test_cflags -Werror=unused-command-line-argument &&
6606     append unknown_warning_flags "-Werror=unused-command-line-argument"
6607 test_cflags -Werror=unknown-warning-option &&
6608     append unknown_warning_flags "-Werror=unknown-warning-option"
6609
6610 check_disable_warning -Wno-parentheses
6611 check_disable_warning -Wno-switch
6612 check_disable_warning -Wno-format-zero-length
6613 check_disable_warning -Wno-pointer-sign
6614 check_disable_warning -Wno-unused-const-variable
6615 check_disable_warning -Wno-bool-operation
6616 check_disable_warning -Wno-char-subscripts
6617
6618 check_disable_warning_headers(){
6619     warning_flag=-W${1#-Wno-}
6620     test_cflags $warning_flag && add_cflags_headers $1
6621 }
6622
6623 check_disable_warning_headers -Wno-deprecated-declarations
6624 check_disable_warning_headers -Wno-unused-variable
6625
6626 test_cc <<EOF && enable blocks_extension
6627 void (^block)(void);
6628 EOF
6629
6630 # add some linker flags
6631 check_ldflags -Wl,--warn-common
6632 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6633 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6634 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6635
6636 # add some strip flags
6637 check_stripflags -x
6638
6639 enabled neon_clobber_test &&
6640     check_ldflags -Wl,--wrap,avcodec_open2              \
6641                   -Wl,--wrap,avcodec_decode_audio4      \
6642                   -Wl,--wrap,avcodec_decode_video2      \
6643                   -Wl,--wrap,avcodec_decode_subtitle2   \
6644                   -Wl,--wrap,avcodec_encode_audio2      \
6645                   -Wl,--wrap,avcodec_encode_video2      \
6646                   -Wl,--wrap,avcodec_encode_subtitle    \
6647                   -Wl,--wrap,avcodec_send_packet        \
6648                   -Wl,--wrap,avcodec_receive_packet     \
6649                   -Wl,--wrap,avcodec_send_frame         \
6650                   -Wl,--wrap,avcodec_receive_frame      \
6651                   -Wl,--wrap,swr_convert                \
6652                   -Wl,--wrap,avresample_convert ||
6653     disable neon_clobber_test
6654
6655 enabled xmm_clobber_test &&
6656     check_ldflags -Wl,--wrap,avcodec_open2              \
6657                   -Wl,--wrap,avcodec_decode_audio4      \
6658                   -Wl,--wrap,avcodec_decode_video2      \
6659                   -Wl,--wrap,avcodec_decode_subtitle2   \
6660                   -Wl,--wrap,avcodec_encode_audio2      \
6661                   -Wl,--wrap,avcodec_encode_video2      \
6662                   -Wl,--wrap,avcodec_encode_subtitle    \
6663                   -Wl,--wrap,avcodec_send_packet        \
6664                   -Wl,--wrap,avcodec_receive_packet     \
6665                   -Wl,--wrap,avcodec_send_frame         \
6666                   -Wl,--wrap,avcodec_receive_frame      \
6667                   -Wl,--wrap,swr_convert                \
6668                   -Wl,--wrap,avresample_convert         \
6669                   -Wl,--wrap,sws_scale ||
6670     disable xmm_clobber_test
6671
6672 check_ld "cc" proper_dce <<EOF
6673 extern const int array[512];
6674 static inline int func(void) { return array[0]; }
6675 int main(void) { return 0; }
6676 EOF
6677
6678 if enabled proper_dce; then
6679     echo "X { local: *; };" > $TMPV
6680     if test_ldflags -Wl,${version_script},$TMPV; then
6681         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6682         quotes='""'
6683         test_cc <<EOF && enable symver_asm_label
6684 void ff_foo(void) __asm__ ("av_foo@VERSION");
6685 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6686 EOF
6687         test_cc <<EOF && enable symver_gnu_asm
6688 __asm__(".symver ff_foo,av_foo@VERSION");
6689 void ff_foo(void) {}
6690 EOF
6691     fi
6692 fi
6693
6694 if [ -z "$optflags" ]; then
6695     if enabled small; then
6696         optflags=$cflags_size
6697     elif enabled optimizations; then
6698         optflags=$cflags_speed
6699     else
6700         optflags=$cflags_noopt
6701     fi
6702 fi
6703
6704 if [ -z "$nvccflags" ]; then
6705     nvccflags=$nvccflags_default
6706 fi
6707
6708 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6709     nvccflags="$nvccflags -m64"
6710 else
6711     nvccflags="$nvccflags -m32"
6712 fi
6713
6714 check_optflags(){
6715     check_cflags "$@"
6716     enabled lto && check_ldflags "$@"
6717 }
6718
6719 check_optflags $optflags
6720 check_optflags -fno-math-errno
6721 check_optflags -fno-signed-zeros
6722
6723 if enabled lto; then
6724     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6725     check_cflags  -flto
6726     check_ldflags -flto $cpuflags
6727     disable inline_asm_direct_symbol_refs
6728 fi
6729
6730 enabled ftrapv && check_cflags -ftrapv
6731
6732 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6733 int x;
6734 EOF
6735
6736
6737 if enabled icc; then
6738     # Just warnings, no remarks
6739     check_cflags -w1
6740     # -wd: Disable following warnings
6741     # 144, 167, 556: -Wno-pointer-sign
6742     # 188: enumerated type mixed with another type
6743     # 1292: attribute "foo" ignored
6744     # 1419: external declaration in primary source file
6745     # 10006: ignoring unknown option -fno-signed-zeros
6746     # 10148: ignoring unknown option -Wno-parentheses
6747     # 10156: ignoring option '-W'; no argument required
6748     # 13200: No EMMS instruction before call to function
6749     # 13203: No EMMS instruction before return from function
6750     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6751     # 11030: Warning unknown option --as-needed
6752     # 10156: ignoring option '-export'; no argument required
6753     check_ldflags -wd10156,11030
6754     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6755     enable ebp_available
6756     # The test above does not test linking
6757     enabled lto && disable symver_asm_label
6758     if enabled x86_32; then
6759         icc_version=$($cc -dumpversion)
6760         test ${icc_version%%.*} -ge 11 &&
6761             check_cflags -falign-stack=maintain-16-byte ||
6762             disable aligned_stack
6763     fi
6764 elif enabled gcc; then
6765     check_optflags -fno-tree-vectorize
6766     check_cflags -Werror=format-security
6767     check_cflags -Werror=implicit-function-declaration
6768     check_cflags -Werror=missing-prototypes
6769     check_cflags -Werror=return-type
6770     check_cflags -Werror=vla
6771     check_cflags -Wformat
6772     check_cflags -fdiagnostics-color=auto
6773     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6774     if enabled x86_32; then
6775         case $target_os in
6776         *bsd*)
6777             # BSDs don't guarantee a 16 byte aligned stack, but we can
6778             # request GCC to try to maintain 16 byte alignment throughout
6779             # function calls. Library entry points that might call assembly
6780             # functions align the stack. (The parameter means 2^4 bytes.)
6781             check_cflags -mpreferred-stack-boundary=4
6782             ;;
6783         esac
6784     fi
6785 elif enabled llvm_gcc; then
6786     check_cflags -mllvm -stack-alignment=16
6787 elif enabled clang; then
6788     if enabled x86_32; then
6789         # Clang doesn't support maintaining alignment without assuming the
6790         # same alignment in every function. If 16 byte alignment would be
6791         # enabled, one would also have to either add attribute_align_arg on
6792         # every single entry point into the libraries or enable -mstackrealign
6793         # (doing stack realignment in every single function).
6794         case $target_os in
6795         mingw32|win32|*bsd*)
6796             disable aligned_stack
6797             ;;
6798         *)
6799             check_cflags -mllvm -stack-alignment=16
6800             check_cflags -mstack-alignment=16
6801             ;;
6802         esac
6803     else
6804         check_cflags -mllvm -stack-alignment=16
6805         check_cflags -mstack-alignment=16
6806     fi
6807     check_cflags -Qunused-arguments
6808     check_cflags -Werror=implicit-function-declaration
6809     check_cflags -Werror=missing-prototypes
6810     check_cflags -Werror=return-type
6811 elif enabled cparser; then
6812     add_cflags -Wno-missing-variable-declarations
6813     add_cflags -Wno-empty-statement
6814 elif enabled armcc; then
6815     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6816     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6817     # 2523: use of inline assembly is deprecated
6818     add_cflags -W${armcc_opt},--diag_suppress=2523
6819     add_cflags -W${armcc_opt},--diag_suppress=1207
6820     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6821     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6822     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6823     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6824 elif enabled pathscale; then
6825     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6826     disable inline_asm
6827 elif enabled_any msvc icl; then
6828     enabled x86_32 && disable aligned_stack
6829     enabled_all x86_32 debug && add_cflags -Oy-
6830     enabled debug && add_ldflags -debug
6831     enable pragma_deprecated
6832     if enabled icl; then
6833         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6834         # (correctly) on icl 13.x.
6835         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6836             add_cflags -Qansi-alias
6837         # Some inline asm is not compilable in debug
6838         if enabled debug; then
6839             disable ebp_available
6840             disable ebx_available
6841         fi
6842     fi
6843     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6844     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6845     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6846     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6847     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6848     # MSVC 2013 and newer can handle it fine.
6849     # If this declspec fails, force including stdlib.h before the restrict redefinition
6850     # happens in config.h.
6851     if [ $restrict_keyword != restrict ]; then
6852         test_cc <<EOF || add_cflags -FIstdlib.h
6853 __declspec($restrict_keyword) void *foo(int);
6854 EOF
6855     fi
6856     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6857     # Issue has been fixed in MSVC v19.00.24218.
6858     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6859         check_cflags -d2SSAOptimizer-
6860     # enable utf-8 source processing on VS2015 U2 and newer
6861     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6862         add_cflags -utf-8
6863 fi
6864
6865 for pfx in "" host_; do
6866     varname=${pfx%_}cc_type
6867     eval "type=\$$varname"
6868     if [ "$type" = "msvc" ]; then
6869         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6870 static inline int foo(int a) { return a; }
6871 EOF
6872     fi
6873 done
6874
6875 case $as_type in
6876     clang)
6877         add_asflags -Qunused-arguments
6878     ;;
6879 esac
6880
6881 case $ld_type in
6882     clang)
6883         check_ldflags -Qunused-arguments
6884     ;;
6885 esac
6886
6887 enable frame_thread_encoder
6888
6889 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6890
6891 check_deps $CONFIG_LIST       \
6892            $CONFIG_EXTRA      \
6893            $HAVE_LIST         \
6894            $ALL_COMPONENTS    \
6895
6896 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"
6897 enabled avresample && warn "Building with deprecated library libavresample"
6898
6899 case $target_os in
6900 haiku)
6901     disable memalign
6902     disable posix_memalign
6903     ;;
6904 *-dos|freedos|opendos)
6905     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6906         disable memalign
6907     fi
6908     ;;
6909 esac
6910
6911 flatten_extralibs(){
6912     nested_entries=
6913     list_name=$1
6914     eval list=\$${1}
6915     for entry in $list; do
6916         entry_copy=$entry
6917         resolve entry_copy
6918         flat_entries=
6919         for e in $entry_copy; do
6920             case $e in
6921                 *_extralibs) nested_entries="$nested_entries$e ";;
6922                           *) flat_entries="$flat_entries$e ";;
6923             esac
6924         done
6925         eval $entry="\$flat_entries"
6926     done
6927     append $list_name "$nested_entries"
6928
6929     resolve nested_entries
6930     if test -n "$(filter '*_extralibs' $nested_entries)"; then
6931         flatten_extralibs $list_name
6932     fi
6933 }
6934
6935 flatten_extralibs_wrapper(){
6936     list_name=$1
6937     flatten_extralibs $list_name
6938     unique $list_name
6939     resolve $list_name
6940     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
6941     eval printf \''%s'\' \""\$$list_name"\"
6942 }
6943
6944 for linkunit in $LIBRARY_LIST; do
6945     unset current_extralibs
6946     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
6947     for comp in ${components}; do
6948         enabled $comp || continue
6949         comp_extralibs="${comp}_extralibs"
6950         append current_extralibs $comp_extralibs
6951     done
6952     eval prepend ${linkunit}_extralibs $current_extralibs
6953 done
6954
6955 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
6956     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
6957 done
6958
6959 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6960
6961 for thread in $THREADS_LIST; do
6962     if enabled $thread; then
6963         test -n "$thread_type" &&
6964             die "ERROR: Only one thread type must be selected." ||
6965             thread_type="$thread"
6966     fi
6967 done
6968
6969 if disabled stdatomic; then
6970     if enabled atomics_gcc; then
6971         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
6972     elif enabled atomics_win32; then
6973         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
6974     elif enabled atomics_suncc; then
6975         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
6976     elif enabled pthreads; then
6977         add_compat atomics/pthread/stdatomic.o
6978         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
6979     else
6980         enabled threads && die "Threading is enabled, but no atomics are available"
6981         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
6982     fi
6983 fi
6984
6985 # Check if requested libraries were found.
6986 for lib in $AUTODETECT_LIBS; do
6987     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
6988 done
6989
6990 enabled zlib && add_cppflags -DZLIB_CONST
6991
6992 # conditional library dependencies, in any order
6993 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
6994 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
6995 enabled afir_filter         && prepend avfilter_deps "avcodec"
6996 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
6997 enabled aresample_filter    && prepend avfilter_deps "swresample"
6998 enabled atempo_filter       && prepend avfilter_deps "avcodec"
6999 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7000 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7001 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7002 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7003 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7004 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7005 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7006 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7007 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7008 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7009 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7010 enabled pan_filter          && prepend avfilter_deps "swresample"
7011 enabled pp_filter           && prepend avfilter_deps "postproc"
7012 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7013 enabled resample_filter && prepend avfilter_deps "avresample"
7014 enabled sab_filter          && prepend avfilter_deps "swscale"
7015 enabled scale_filter    && prepend avfilter_deps "swscale"
7016 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7017 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7018 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7019 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7020 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7021 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7022 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7023 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7024 enabled spp_filter          && prepend avfilter_deps "avcodec"
7025 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7026 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7027 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7028 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7029
7030 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7031
7032 #FIXME
7033 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7034     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7035
7036 enabled opus_decoder    && prepend avcodec_deps "swresample"
7037
7038 # reorder the items at var $1 to align with the items order at var $2 .
7039 # die if an item at $1 is not at $2 .
7040 reorder_by(){
7041     eval rb_in=\$$1
7042     eval rb_ordered=\$$2
7043
7044     for rb in $rb_in; do
7045         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7046     done
7047
7048     rb_out=
7049     for rb in $rb_ordered; do
7050         is_in $rb $rb_in && rb_out="$rb_out$rb "
7051     done
7052     eval $1=\$rb_out
7053 }
7054
7055 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7056 # within a set of N items, N expansions are enough to expose a cycle.
7057 expand_deps(){
7058     unique ${1}_deps  # required for the early break test.
7059     for dummy in $LIBRARY_LIST; do  # N iteratios
7060         eval deps=\$${1}_deps
7061         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7062         unique ${1}_deps
7063         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7064     done
7065
7066     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7067     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7068 }
7069
7070 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7071 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7072
7073 map 'expand_deps $v' $LIBRARY_LIST
7074
7075 if test "$quiet" != "yes"; then
7076
7077 echo "install prefix            $prefix"
7078 echo "source path               $source_path"
7079 echo "C compiler                $cc"
7080 echo "C library                 $libc_type"
7081 if test "$host_cc" != "$cc"; then
7082     echo "host C compiler           $host_cc"
7083     echo "host C library            $host_libc_type"
7084 fi
7085 echo "ARCH                      $arch ($cpu)"
7086 if test "$build_suffix" != ""; then
7087     echo "build suffix              $build_suffix"
7088 fi
7089 if test "$progs_suffix" != ""; then
7090     echo "progs suffix              $progs_suffix"
7091 fi
7092 if test "$extra_version" != ""; then
7093     echo "version string suffix     $extra_version"
7094 fi
7095 echo "big-endian                ${bigendian-no}"
7096 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7097 if enabled x86; then
7098     echo "standalone assembly       ${x86asm-no}"
7099     echo "x86 assembler             ${x86asmexe}"
7100     echo "MMX enabled               ${mmx-no}"
7101     echo "MMXEXT enabled            ${mmxext-no}"
7102     echo "3DNow! enabled            ${amd3dnow-no}"
7103     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7104     echo "SSE enabled               ${sse-no}"
7105     echo "SSSE3 enabled             ${ssse3-no}"
7106     echo "AESNI enabled             ${aesni-no}"
7107     echo "AVX enabled               ${avx-no}"
7108     echo "AVX2 enabled              ${avx2-no}"
7109     echo "AVX-512 enabled           ${avx512-no}"
7110     echo "XOP enabled               ${xop-no}"
7111     echo "FMA3 enabled              ${fma3-no}"
7112     echo "FMA4 enabled              ${fma4-no}"
7113     echo "i686 features enabled     ${i686-no}"
7114     echo "CMOV is fast              ${fast_cmov-no}"
7115     echo "EBX available             ${ebx_available-no}"
7116     echo "EBP available             ${ebp_available-no}"
7117 fi
7118 if enabled aarch64; then
7119     echo "NEON enabled              ${neon-no}"
7120     echo "VFP enabled               ${vfp-no}"
7121 fi
7122 if enabled arm; then
7123     echo "ARMv5TE enabled           ${armv5te-no}"
7124     echo "ARMv6 enabled             ${armv6-no}"
7125     echo "ARMv6T2 enabled           ${armv6t2-no}"
7126     echo "VFP enabled               ${vfp-no}"
7127     echo "NEON enabled              ${neon-no}"
7128     echo "THUMB enabled             ${thumb-no}"
7129 fi
7130 if enabled mips; then
7131     echo "MIPS FPU enabled          ${mipsfpu-no}"
7132     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7133     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7134     echo "MIPS MSA enabled          ${msa-no}"
7135     echo "MIPS MSA2 enabled         ${msa2-no}"
7136     echo "LOONGSON MMI enabled      ${mmi-no}"
7137 fi
7138 if enabled ppc; then
7139     echo "AltiVec enabled           ${altivec-no}"
7140     echo "VSX enabled               ${vsx-no}"
7141     echo "POWER8 enabled            ${power8-no}"
7142     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7143     echo "dcbzl available           ${dcbzl-no}"
7144 fi
7145 echo "debug symbols             ${debug-no}"
7146 echo "strip symbols             ${stripping-no}"
7147 echo "optimize for size         ${small-no}"
7148 echo "optimizations             ${optimizations-no}"
7149 echo "static                    ${static-no}"
7150 echo "shared                    ${shared-no}"
7151 echo "postprocessing support    ${postproc-no}"
7152 echo "network support           ${network-no}"
7153 echo "threading support         ${thread_type-no}"
7154 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7155 echo "texi2html enabled         ${texi2html-no}"
7156 echo "perl enabled              ${perl-no}"
7157 echo "pod2man enabled           ${pod2man-no}"
7158 echo "makeinfo enabled          ${makeinfo-no}"
7159 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7160 test -n "$random_seed" &&
7161     echo "random seed               ${random_seed}"
7162 echo
7163
7164 echo "External libraries:"
7165 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7166 echo
7167
7168 echo "External libraries providing hardware acceleration:"
7169 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7170 echo
7171
7172 echo "Libraries:"
7173 print_enabled '' $LIBRARY_LIST | print_in_columns
7174 echo
7175
7176 echo "Programs:"
7177 print_enabled '' $PROGRAM_LIST | print_in_columns
7178 echo
7179
7180 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7181     echo "Enabled ${type}s:"
7182     eval list=\$$(toupper $type)_LIST
7183     print_enabled '_*' $list | print_in_columns
7184     echo
7185 done
7186
7187 if test -n "$ignore_tests"; then
7188     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7189     echo "Ignored FATE tests:"
7190     echo $ignore_tests | print_in_columns
7191     echo
7192 fi
7193
7194 echo "License: $license"
7195
7196 fi # test "$quiet" != "yes"
7197
7198 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7199     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7200         if disabled $cfg; then
7201             varname=${cfg}_disable_reason
7202             eval "warn \"Disabled $cfg because \$$varname\""
7203         fi
7204     done
7205 fi
7206
7207 if test -n "$WARNINGS"; then
7208     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7209     enabled fatal_warnings && exit 1
7210 fi
7211
7212 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7213
7214 esc(){
7215     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7216 }
7217
7218 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7219
7220 enabled stripping || strip="echo skipping strip"
7221 enabled stripping || striptype=""
7222
7223 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7224
7225 cat > ffbuild/config.mak <<EOF
7226 # Automatically generated by configure - do not modify!
7227 ifndef FFMPEG_CONFIG_MAK
7228 FFMPEG_CONFIG_MAK=1
7229 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7230 prefix=$prefix
7231 LIBDIR=\$(DESTDIR)$libdir
7232 SHLIBDIR=\$(DESTDIR)$shlibdir
7233 INCDIR=\$(DESTDIR)$incdir
7234 BINDIR=\$(DESTDIR)$bindir
7235 DATADIR=\$(DESTDIR)$datadir
7236 DOCDIR=\$(DESTDIR)$docdir
7237 MANDIR=\$(DESTDIR)$mandir
7238 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7239 INSTALL_NAME_DIR=$install_name_dir
7240 SRC_PATH=$source_path
7241 SRC_LINK=$source_link
7242 ifndef MAIN_MAKEFILE
7243 SRC_PATH:=\$(SRC_PATH:.%=..%)
7244 endif
7245 CC_IDENT=$cc_ident
7246 ARCH=$arch
7247 INTRINSICS=$intrinsics
7248 EXTERN_PREFIX=$extern_prefix
7249 CC=$cc
7250 CXX=$cxx
7251 AS=$as
7252 OBJCC=$objcc
7253 LD=$ld
7254 DEPCC=$dep_cc
7255 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7256 DEPAS=$as
7257 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7258 X86ASM=$x86asmexe
7259 DEPX86ASM=$x86asmexe
7260 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7261 AR=$ar
7262 ARFLAGS=$arflags
7263 AR_O=$ar_o
7264 AR_CMD=$ar
7265 NM_CMD=$nm
7266 RANLIB=$ranlib
7267 STRIP=$strip
7268 STRIPTYPE=$striptype
7269 NVCC=$nvcc
7270 CP=cp -p
7271 LN_S=$ln_s
7272 CPPFLAGS=$CPPFLAGS
7273 CFLAGS=$CFLAGS
7274 CXXFLAGS=$CXXFLAGS
7275 OBJCFLAGS=$OBJCFLAGS
7276 ASFLAGS=$ASFLAGS
7277 NVCCFLAGS=$nvccflags
7278 AS_C=$AS_C
7279 AS_O=$AS_O
7280 OBJCC_C=$OBJCC_C
7281 OBJCC_E=$OBJCC_E
7282 OBJCC_O=$OBJCC_O
7283 CC_C=$CC_C
7284 CC_E=$CC_E
7285 CC_O=$CC_O
7286 CXX_C=$CXX_C
7287 CXX_O=$CXX_O
7288 NVCC_C=$NVCC_C
7289 NVCC_O=$NVCC_O
7290 LD_O=$LD_O
7291 X86ASM_O=$X86ASM_O
7292 LD_LIB=$LD_LIB
7293 LD_PATH=$LD_PATH
7294 DLLTOOL=$dlltool
7295 WINDRES=$windres
7296 DEPWINDRES=$dep_cc
7297 DOXYGEN=$doxygen
7298 LDFLAGS=$LDFLAGS
7299 LDEXEFLAGS=$LDEXEFLAGS
7300 LDSOFLAGS=$LDSOFLAGS
7301 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7302 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7303 X86ASMFLAGS=$X86ASMFLAGS
7304 BUILDSUF=$build_suffix
7305 PROGSSUF=$progs_suffix
7306 FULLNAME=$FULLNAME
7307 LIBPREF=$LIBPREF
7308 LIBSUF=$LIBSUF
7309 LIBNAME=$LIBNAME
7310 SLIBPREF=$SLIBPREF
7311 SLIBSUF=$SLIBSUF
7312 EXESUF=$EXESUF
7313 EXTRA_VERSION=$extra_version
7314 CCDEP=$CCDEP
7315 CXXDEP=$CXXDEP
7316 CCDEP_FLAGS=$CCDEP_FLAGS
7317 ASDEP=$ASDEP
7318 ASDEP_FLAGS=$ASDEP_FLAGS
7319 X86ASMDEP=$X86ASMDEP
7320 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7321 CC_DEPFLAGS=$CC_DEPFLAGS
7322 AS_DEPFLAGS=$AS_DEPFLAGS
7323 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7324 HOSTCC=$host_cc
7325 HOSTLD=$host_ld
7326 HOSTCFLAGS=$host_cflags
7327 HOSTCPPFLAGS=$host_cppflags
7328 HOSTEXESUF=$HOSTEXESUF
7329 HOSTLDFLAGS=$host_ldflags
7330 HOSTEXTRALIBS=$host_extralibs
7331 DEPHOSTCC=$host_cc
7332 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7333 HOSTCCDEP=$HOSTCCDEP
7334 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7335 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7336 HOSTCC_C=$HOSTCC_C
7337 HOSTCC_O=$HOSTCC_O
7338 HOSTLD_O=$HOSTLD_O
7339 TARGET_EXEC=$target_exec $target_exec_args
7340 TARGET_PATH=$target_path
7341 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7342 CFLAGS-ffplay=${sdl2_cflags}
7343 CFLAGS_HEADERS=$CFLAGS_HEADERS
7344 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7345 EXTRALIBS=$extralibs
7346 COMPAT_OBJS=$compat_objs
7347 INSTALL=$install
7348 LIBTARGET=${LIBTARGET}
7349 SLIBNAME=${SLIBNAME}
7350 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7351 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7352 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7353 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7354 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7355 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7356 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7357 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7358 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7359 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7360 NOREDZONE_FLAGS=$noredzone_flags
7361 LIBFUZZER_PATH=$libfuzzer_path
7362 IGNORE_TESTS=$ignore_tests
7363 EOF
7364
7365 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7366
7367 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7368     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7369 done
7370
7371 cat > $TMPH <<EOF
7372 /* Automatically generated by configure - do not modify! */
7373 #ifndef FFMPEG_CONFIG_H
7374 #define FFMPEG_CONFIG_H
7375 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7376 #define FFMPEG_LICENSE "$(c_escape $license)"
7377 #define CONFIG_THIS_YEAR 2019
7378 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7379 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7380 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7381 #define av_restrict $restrict_keyword
7382 #define EXTERN_PREFIX "${extern_prefix}"
7383 #define EXTERN_ASM ${extern_prefix}
7384 #define BUILDSUF "$build_suffix"
7385 #define SLIBSUF "$SLIBSUF"
7386 #define HAVE_MMX2 HAVE_MMXEXT
7387 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7388 EOF
7389
7390 test -n "$assert_level" &&
7391     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7392
7393 test -n "$malloc_prefix" &&
7394     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7395
7396 if enabled x86asm; then
7397     append config_files $TMPASM
7398     cat > $TMPASM <<EOF
7399 ; Automatically generated by configure - do not modify!
7400 EOF
7401 fi
7402
7403 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7404
7405
7406 mkdir -p doc
7407 mkdir -p tests
7408 mkdir -p tests/api
7409 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7410
7411 print_config ARCH_   "$config_files" $ARCH_LIST
7412 print_config HAVE_   "$config_files" $HAVE_LIST
7413 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7414                                      $CONFIG_EXTRA      \
7415                                      $ALL_COMPONENTS    \
7416
7417 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7418 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7419
7420 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7421 cp_if_changed $TMPH config.h
7422 touch ffbuild/.config
7423
7424 enabled x86asm && cp_if_changed $TMPASM config.asm
7425
7426 cat > $TMPH <<EOF
7427 /* Generated by ffmpeg configure */
7428 #ifndef AVUTIL_AVCONFIG_H
7429 #define AVUTIL_AVCONFIG_H
7430 EOF
7431
7432 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7433
7434 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7435
7436 cp_if_changed $TMPH libavutil/avconfig.h
7437
7438 # full_filter_name_foo=vf_foo
7439 # full_filter_name_bar=asrc_bar
7440 # ...
7441 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7442
7443 # generate the lists of enabled components
7444 print_enabled_components(){
7445     file=$1
7446     struct_name=$2
7447     name=$3
7448     shift 3
7449     echo "static const $struct_name * const $name[] = {" > $TMPH
7450     for c in $*; do
7451         if enabled $c; then
7452             case $name in
7453                 filter_list)
7454                     eval c=\$full_filter_name_${c%_filter}
7455                 ;;
7456                 indev_list)
7457                     c=${c%_indev}_demuxer
7458                 ;;
7459                 outdev_list)
7460                     c=${c%_outdev}_muxer
7461                 ;;
7462             esac
7463             printf "    &ff_%s,\n" $c >> $TMPH
7464         fi
7465     done
7466     if [ "$name" = "filter_list" ]; then
7467         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7468             printf "    &ff_%s,\n" $c >> $TMPH
7469         done
7470     fi
7471     echo "    NULL };" >> $TMPH
7472     cp_if_changed $TMPH $file
7473 }
7474
7475 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7476 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7477 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7478 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7479 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7480 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7481 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7482 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7483 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7484
7485 # Settings for pkg-config files
7486
7487 cat > $TMPH <<EOF
7488 # Automatically generated by configure - do not modify!
7489 shared=$shared
7490 build_suffix=$build_suffix
7491 prefix=$prefix
7492 libdir=$libdir
7493 incdir=$incdir
7494 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7495 source_path=${source_path}
7496 LIBPREF=${LIBPREF}
7497 LIBSUF=${LIBSUF}
7498 extralibs_avutil="$avutil_extralibs"
7499 extralibs_avcodec="$avcodec_extralibs"
7500 extralibs_avformat="$avformat_extralibs"
7501 extralibs_avdevice="$avdevice_extralibs"
7502 extralibs_avfilter="$avfilter_extralibs"
7503 extralibs_avresample="$avresample_extralibs"
7504 extralibs_postproc="$postproc_extralibs"
7505 extralibs_swscale="$swscale_extralibs"
7506 extralibs_swresample="$swresample_extralibs"
7507 EOF
7508
7509 for lib in $LIBRARY_LIST; do
7510     lib_deps="$(eval echo \$${lib}_deps)"
7511     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7512 done
7513
7514 cp_if_changed $TMPH ffbuild/config.sh