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-librav1e        enable AV1 encoding via rav1e [no]
 258   --enable-librsvg         enable SVG rasterization via librsvg [no]
 259   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 260   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 261   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 262   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 263   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 264   --enable-libsoxr         enable Include libsoxr resampling [no]
 265   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 266   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
 267   --enable-libssh          enable SFTP protocol via libssh [no]
 268   --enable-libtensorflow   enable TensorFlow as a DNN module backend
 269                            for DNN based filters like sr [no]
 270   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 271   --enable-libtheora       enable Theora encoding via libtheora [no]
 272   --enable-libtls          enable LibreSSL (via libtls), needed for https support
 273                            if openssl, gnutls or mbedtls is not used [no]
 274   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 275   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 276   --enable-libvidstab      enable video stabilization using vid.stab [no]
 277   --enable-libvmaf         enable vmaf filter via libvmaf [no]
 278   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 279   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 280                            native implementation exists [no]
 281   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 282   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 283   --enable-libwebp         enable WebP encoding via libwebp [no]
 284   --enable-libx264         enable H.264 encoding via x264 [no]
 285   --enable-libx265         enable HEVC encoding via x265 [no]
 286   --enable-libxavs         enable AVS encoding via xavs [no]
 287   --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
 288   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 289   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 290   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 291   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 292   --enable-libxvid         enable Xvid encoding via xvidcore,
 293                            native MPEG-4/Xvid encoder exists [no]
 294   --enable-libxml2         enable XML parsing using the C library libxml2, needed
 295                            for dash demuxing support [no]
 296   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 297   --enable-libzmq          enable message passing via libzmq [no]
 298   --enable-libzvbi         enable teletext support via libzvbi [no]
 299   --enable-lv2             enable LV2 audio filtering [no]
 300   --disable-lzma           disable lzma [autodetect]
 301   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 302   --enable-mbedtls         enable mbedTLS, needed for https support
 303                            if openssl, gnutls or libtls is not used [no]
 304   --enable-mediacodec      enable Android MediaCodec support [no]
 305   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
 306   --enable-openal          enable OpenAL 1.1 capture support [no]
 307   --enable-opencl          enable OpenCL processing [no]
 308   --enable-opengl          enable OpenGL rendering [no]
 309   --enable-openssl         enable openssl, needed for https support
 310                            if gnutls, libtls or mbedtls is not used [no]
 311   --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
 312   --disable-sndio          disable sndio support [autodetect]
 313   --disable-schannel       disable SChannel SSP, needed for TLS support on
 314                            Windows if openssl and gnutls are not used [autodetect]
 315   --disable-sdl2           disable sdl2 [autodetect]
 316   --disable-securetransport disable Secure Transport, needed for TLS support
 317                            on OSX if openssl and gnutls are not used [autodetect]
 318   --enable-vapoursynth     enable VapourSynth demuxer [no]
 319   --disable-xlib           disable xlib [autodetect]
 320   --disable-zlib           disable zlib [autodetect]
 321
 322   The following libraries provide various hardware acceleration features:
 323   --disable-amf            disable AMF video encoding code [autodetect]
 324   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 325   --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
 326   --disable-cuda-llvm      disable CUDA compilation using clang [autodetect]
 327   --disable-cuvid          disable Nvidia CUVID support [autodetect]
 328   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 329   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 330   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
 331   --enable-libdrm          enable DRM code (Linux) [no]
 332   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 333   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 334   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 335   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
 336   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 337   --enable-omx             enable OpenMAX IL code [no]
 338   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 339   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
 340   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
 341   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 342   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 343   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 344
 345 Toolchain options:
 346   --arch=ARCH              select architecture [$arch]
 347   --cpu=CPU                select the minimum required CPU (affects
 348                            instruction selection, may crash on older CPUs)
 349   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 350   --progs-suffix=SUFFIX    program name suffix []
 351   --enable-cross-compile   assume a cross-compiler is used
 352   --sysroot=PATH           root of cross-build tree
 353   --sysinclude=PATH        location of cross-build system headers
 354   --target-os=OS           compiler targets OS [$target_os]
 355   --target-exec=CMD        command to run executables on target
 356   --target-path=DIR        path to view of build directory on target
 357   --target-samples=DIR     path to samples directory on target
 358   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 359   --toolchain=NAME         set tool defaults according to NAME
 360                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
 361                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
 362                            valgrind-massif, valgrind-memcheck,
 363                            msvc, icl, gcov, llvm-cov, hardened)
 364   --nm=NM                  use nm tool NM [$nm_default]
 365   --ar=AR                  use archive tool AR [$ar_default]
 366   --as=AS                  use assembler AS [$as_default]
 367   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 368   --strip=STRIP            use strip tool STRIP [$strip_default]
 369   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 370   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
 371   --cc=CC                  use C compiler CC [$cc_default]
 372   --cxx=CXX                use C compiler CXX [$cxx_default]
 373   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 374   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 375   --nvcc=NVCC              use Nvidia CUDA compiler NVCC or clang [$nvcc_default]
 376   --ld=LD                  use linker LD [$ld_default]
 377   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 378   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 379   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 380   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 381   --host-cc=HOSTCC         use host C compiler HOSTCC
 382   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 383   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 384   --host-ld=HOSTLD         use host linker HOSTLD
 385   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 386   --host-extralibs=HLIBS   use libs HLIBS when linking for host
 387   --host-os=OS             compiler host OS [$target_os]
 388   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 389   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 390   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 391   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 392   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 393   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
 394   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 395   --extra-version=STRING   version string suffix []
 396   --optflags=OPTFLAGS      override optimization-related compiler flags
 397   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
 398   --build-suffix=SUFFIX    library name suffix []
 399   --enable-pic             build position-independent code
 400   --enable-thumb           compile for Thumb instruction set
 401   --enable-lto             use link-time optimization
 402   --env="ENV=override"     override the environment variables
 403
 404 Advanced options (experts only):
 405   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 406   --custom-allocator=NAME  use a supported custom allocator
 407   --disable-symver         disable symbol versioning
 408   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 409   --disable-safe-bitstream-reader
 410                            disable buffer boundary checking in bitreaders
 411                            (faster, but may crash)
 412   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 413
 414 Optimization options (experts only):
 415   --disable-asm            disable all assembly optimizations
 416   --disable-altivec        disable AltiVec optimizations
 417   --disable-vsx            disable VSX optimizations
 418   --disable-power8         disable POWER8 optimizations
 419   --disable-amd3dnow       disable 3DNow! optimizations
 420   --disable-amd3dnowext    disable 3DNow! extended optimizations
 421   --disable-mmx            disable MMX optimizations
 422   --disable-mmxext         disable MMXEXT optimizations
 423   --disable-sse            disable SSE optimizations
 424   --disable-sse2           disable SSE2 optimizations
 425   --disable-sse3           disable SSE3 optimizations
 426   --disable-ssse3          disable SSSE3 optimizations
 427   --disable-sse4           disable SSE4 optimizations
 428   --disable-sse42          disable SSE4.2 optimizations
 429   --disable-avx            disable AVX optimizations
 430   --disable-xop            disable XOP optimizations
 431   --disable-fma3           disable FMA3 optimizations
 432   --disable-fma4           disable FMA4 optimizations
 433   --disable-avx2           disable AVX2 optimizations
 434   --disable-avx512         disable AVX-512 optimizations
 435   --disable-aesni          disable AESNI optimizations
 436   --disable-armv5te        disable armv5te optimizations
 437   --disable-armv6          disable armv6 optimizations
 438   --disable-armv6t2        disable armv6t2 optimizations
 439   --disable-vfp            disable VFP optimizations
 440   --disable-neon           disable NEON optimizations
 441   --disable-inline-asm     disable use of inline assembly
 442   --disable-x86asm         disable use of standalone x86 assembly
 443   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 444   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 445   --disable-msa            disable MSA optimizations
 446   --disable-msa2           disable MSA2 optimizations
 447   --disable-mipsfpu        disable floating point MIPS optimizations
 448   --disable-mmi            disable Loongson SIMD optimizations
 449   --disable-fast-unaligned consider unaligned accesses slow
 450
 451 Developer options (useful when working on FFmpeg itself):
 452   --disable-debug          disable debugging symbols
 453   --enable-debug=LEVEL     set the debug level [$debuglevel]
 454   --disable-optimizations  disable compiler optimizations
 455   --enable-extra-warnings  enable more compiler warnings
 456   --disable-stripping      disable stripping of executables and shared libraries
 457   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 458                            2 causes a slowdown at runtime.
 459   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 460   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 461                            leaks and errors, using the specified valgrind binary.
 462                            Cannot be combined with --target-exec
 463   --enable-ftrapv          Trap arithmetic overflows
 464   --samples=PATH           location of test samples for FATE, if not set use
 465                            \$FATE_SAMPLES at make invocation time.
 466   --enable-neon-clobber-test check NEON registers for clobbering (should be
 467                            used only for debugging purposes)
 468   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 469                            should be used only for debugging purposes)
 470   --enable-random          randomly enable/disable components
 471   --disable-random
 472   --enable-random=LIST     randomly enable/disable specific components or
 473   --disable-random=LIST    component groups. LIST is a comma-separated list
 474                            of NAME[:PROB] entries where NAME is a component
 475                            (group) and PROB the probability associated with
 476                            NAME (default 0.5).
 477   --random-seed=VALUE      seed value for --enable/disable-random
 478   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 479                            (only applies to --disable-optimizations builds)
 480   --enable-ossfuzz         Enable building fuzzer tool
 481   --libfuzzer=PATH         path to libfuzzer
 482   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 483                            in the name) of tests whose result is ignored
 484   --enable-linux-perf      enable Linux Performance Monitor API
 485   --disable-large-tests    disable tests that use a large amount of memory
 486
 487 NOTE: Object files are built at the place where configure is launched.
 488 EOF
 489   exit 0
 490 }
 491
 492 if test -t 1 && which tput >/dev/null 2>&1; then
 493     ncolors=$(tput colors)
 494     if test -n "$ncolors" && test $ncolors -ge 8; then
 495         bold_color=$(tput bold)
 496         warn_color=$(tput setaf 3)
 497         error_color=$(tput setaf 1)
 498         reset_color=$(tput sgr0)
 499     fi
 500     # 72 used instead of 80 since that's the default of pr
 501     ncols=$(tput cols)
 502 fi
 503 : ${ncols:=72}
 504
 505 log(){
 506     echo "$@" >> $logfile
 507 }
 508
 509 log_file(){
 510     log BEGIN "$1"
 511     log_file_i=1
 512     while IFS= read -r log_file_line; do
 513         printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
 514         log_file_i=$(($log_file_i+1))
 515     done < "$1" >> "$logfile"
 516     log END "$1"
 517 }
 518
 519 warn(){
 520     log "WARNING: $*"
 521     WARNINGS="${WARNINGS}WARNING: $*\n"
 522 }
 523
 524 die(){
 525     log "$@"
 526     echo "$error_color$bold_color$@$reset_color"
 527     cat <<EOF
 528
 529 If you think configure made a mistake, make sure you are using the latest
 530 version from Git.  If the latest version fails, report the problem to the
 531 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 532 EOF
 533     if disabled logging; then
 534         cat <<EOF
 535 Rerun configure with logging enabled (do not use --disable-logging), and
 536 include the log this produces with your report.
 537 EOF
 538     else
 539         cat <<EOF
 540 Include the log file "$logfile" produced by configure as this will help
 541 solve the problem.
 542 EOF
 543     fi
 544     exit 1
 545 }
 546
 547 # Avoid locale weirdness, besides we really just want to translate ASCII.
 548 toupper(){
 549     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 550 }
 551
 552 tolower(){
 553     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 554 }
 555
 556 c_escape(){
 557     echo "$*" | sed 's/["\\]/\\\0/g'
 558 }
 559
 560 sh_quote(){
 561     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 562     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 563     echo "$v"
 564 }
 565
 566 cleanws(){
 567     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 568 }
 569
 570 filter(){
 571     pat=$1
 572     shift
 573     for v; do
 574         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
 575     done
 576 }
 577
 578 filter_out(){
 579     pat=$1
 580     shift
 581     for v; do
 582         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
 583     done
 584 }
 585
 586 map(){
 587     m=$1
 588     shift
 589     for v; do eval $m; done
 590 }
 591
 592 add_suffix(){
 593     suffix=$1
 594     shift
 595     for v; do echo ${v}${suffix}; done
 596 }
 597
 598 remove_suffix(){
 599     suffix=$1
 600     shift
 601     for v; do echo ${v%$suffix}; done
 602 }
 603
 604 set_all(){
 605     value=$1
 606     shift
 607     for var in $*; do
 608         eval $var=$value
 609     done
 610 }
 611
 612 set_weak(){
 613     value=$1
 614     shift
 615     for var; do
 616         eval : \${$var:=$value}
 617     done
 618 }
 619
 620 sanitize_var_name(){
 621     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 622 }
 623
 624 set_sanitized(){
 625     var=$1
 626     shift
 627     eval $(sanitize_var_name "$var")='$*'
 628 }
 629
 630 get_sanitized(){
 631     eval echo \$$(sanitize_var_name "$1")
 632 }
 633
 634 pushvar(){
 635     for pvar in $*; do
 636         eval level=\${${pvar}_level:=0}
 637         eval ${pvar}_${level}="\$$pvar"
 638         eval ${pvar}_level=$(($level+1))
 639     done
 640 }
 641
 642 popvar(){
 643     for pvar in $*; do
 644         eval level=\${${pvar}_level:-0}
 645         test $level = 0 && continue
 646         eval level=$(($level-1))
 647         eval $pvar="\${${pvar}_${level}}"
 648         eval ${pvar}_level=$level
 649         eval unset ${pvar}_${level}
 650     done
 651 }
 652
 653 request(){
 654     for var in $*; do
 655         eval ${var}_requested=yes
 656         eval $var=
 657     done
 658 }
 659
 660 warn_if_gets_disabled(){
 661     for var in $*; do
 662         WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
 663     done
 664 }
 665
 666 enable(){
 667     set_all yes $*
 668 }
 669
 670 disable(){
 671     set_all no $*
 672 }
 673
 674 disable_with_reason(){
 675     disable $1
 676     eval "${1}_disable_reason=\"$2\""
 677     if requested $1; then
 678         die "ERROR: $1 requested, but $2"
 679     fi
 680 }
 681
 682 enable_weak(){
 683     set_weak yes $*
 684 }
 685
 686 disable_weak(){
 687     set_weak no $*
 688 }
 689
 690 enable_sanitized(){
 691     for var; do
 692         enable $(sanitize_var_name $var)
 693     done
 694 }
 695
 696 disable_sanitized(){
 697     for var; do
 698         disable $(sanitize_var_name $var)
 699     done
 700 }
 701
 702 do_enable_deep(){
 703     for var; do
 704         enabled $var && continue
 705         set -- $var
 706         eval enable_deep \$${var}_select
 707         var=$1
 708         eval enable_deep_weak \$${var}_suggest
 709     done
 710 }
 711
 712 enable_deep(){
 713     do_enable_deep $*
 714     enable $*
 715 }
 716
 717 enable_deep_weak(){
 718     for var; do
 719         disabled $var && continue
 720         set -- $var
 721         do_enable_deep $var
 722         var=$1
 723         enable_weak $var
 724     done
 725 }
 726
 727 requested(){
 728     test "${1#!}" = "$1" && op="=" || op="!="
 729     eval test "x\$${1#!}_requested" $op "xyes"
 730 }
 731
 732 enabled(){
 733     test "${1#!}" = "$1" && op="=" || op="!="
 734     eval test "x\$${1#!}" $op "xyes"
 735 }
 736
 737 disabled(){
 738     test "${1#!}" = "$1" && op="=" || op="!="
 739     eval test "x\$${1#!}" $op "xno"
 740 }
 741
 742 enabled_all(){
 743     for opt; do
 744         enabled $opt || return 1
 745     done
 746 }
 747
 748 disabled_all(){
 749     for opt; do
 750         disabled $opt || return 1
 751     done
 752 }
 753
 754 enabled_any(){
 755     for opt; do
 756         enabled $opt && return 0
 757     done
 758 }
 759
 760 disabled_any(){
 761     for opt; do
 762         disabled $opt && return 0
 763     done
 764     return 1
 765 }
 766
 767 set_default(){
 768     for opt; do
 769         eval : \${$opt:=\$${opt}_default}
 770     done
 771 }
 772
 773 is_in(){
 774     value=$1
 775     shift
 776     for var in $*; do
 777         [ $var = $value ] && return 0
 778     done
 779     return 1
 780 }
 781
 782 # The cfg loop is very hot (several thousands iterations), and in bash also
 783 # potentialy quite slow. Try to abort the iterations early, preferably without
 784 # calling functions. 70%+ of the time cfg is already done or without deps.
 785 check_deps(){
 786     for cfg; do
 787         eval [ x\$${cfg}_checking = xdone ] && continue
 788         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
 789
 790         eval "
 791         dep_all=\$${cfg}_deps
 792         dep_any=\$${cfg}_deps_any
 793         dep_con=\$${cfg}_conflict
 794         dep_sel=\$${cfg}_select
 795         dep_sgs=\$${cfg}_suggest
 796         dep_ifa=\$${cfg}_if
 797         dep_ifn=\$${cfg}_if_any
 798         "
 799
 800         # most of the time here $cfg has no deps - avoid costly no-op work
 801         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
 802             eval ${cfg}_checking=inprogress
 803
 804             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
 805             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
 806             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
 807
 808             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 809             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 810             enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
 811             enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
 812             disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
 813             disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
 814
 815             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
 816
 817             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
 818                 # filter out library deps, these do not belong in extralibs
 819                 is_in $dep $LIBRARY_LIST && continue
 820                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
 821             done
 822         fi
 823
 824         eval ${cfg}_checking=done
 825     done
 826 }
 827
 828 print_config(){
 829     pfx=$1
 830     files=$2
 831     shift 2
 832     map 'eval echo "$v \${$v:-no}"' "$@" |
 833     awk "BEGIN { split(\"$files\", files) }
 834         {
 835             c = \"$pfx\" toupper(\$1);
 836             v = \$2;
 837             sub(/yes/, 1, v);
 838             sub(/no/,  0, v);
 839             for (f in files) {
 840                 file = files[f];
 841                 if (file ~ /\\.h\$/) {
 842                     printf(\"#define %s %d\\n\", c, v) >>file;
 843                 } else if (file ~ /\\.asm\$/) {
 844                     printf(\"%%define %s %d\\n\", c, v) >>file;
 845                 } else if (file ~ /\\.mak\$/) {
 846                     n = -v ? \"\" : \"!\";
 847                     printf(\"%s%s=yes\\n\", n, c) >>file;
 848                 } else if (file ~ /\\.texi\$/) {
 849                     pre = -v ? \"\" : \"@c \";
 850                     yesno = \$2;
 851                     c2 = tolower(c);
 852                     gsub(/_/, \"-\", c2);
 853                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 854                 }
 855             }
 856         }"
 857 }
 858
 859 print_enabled(){
 860     suf=$1
 861     shift
 862     for v; do
 863         enabled $v && printf "%s\n" ${v%$suf}
 864     done
 865 }
 866
 867 append(){
 868     var=$1
 869     shift
 870     eval "$var=\"\$$var $*\""
 871 }
 872
 873 prepend(){
 874     var=$1
 875     shift
 876     eval "$var=\"$* \$$var\""
 877 }
 878
 879 reverse () {
 880     eval '
 881         reverse_out=
 882         for v in $'$1'; do
 883             reverse_out="$v $reverse_out"
 884         done
 885         '$1'=$reverse_out
 886     '
 887 }
 888
 889 # keeps the last occurence of each non-unique item
 890 unique(){
 891     unique_out=
 892     eval unique_in=\$$1
 893     reverse unique_in
 894     for v in $unique_in; do
 895         # " $unique_out" +space such that every item is surrounded with spaces
 896         case " $unique_out" in *" $v "*) continue; esac  # already in list
 897         unique_out="$unique_out$v "
 898     done
 899     reverse unique_out
 900     eval $1=\$unique_out
 901 }
 902
 903 resolve(){
 904     resolve_out=
 905     eval resolve_in=\$$1
 906     for v in $resolve_in; do
 907         eval 'resolve_out="$resolve_out$'$v' "'
 908     done
 909     eval $1=\$resolve_out
 910 }
 911
 912 add_cppflags(){
 913     append CPPFLAGS "$@"
 914 }
 915
 916 add_cflags(){
 917     append CFLAGS $($cflags_filter "$@")
 918 }
 919
 920 add_cflags_headers(){
 921     append CFLAGS_HEADERS $($cflags_filter "$@")
 922 }
 923
 924 add_cxxflags(){
 925     append CXXFLAGS $($cflags_filter "$@")
 926 }
 927
 928 add_objcflags(){
 929     append OBJCFLAGS $($objcflags_filter "$@")
 930 }
 931
 932 add_asflags(){
 933     append ASFLAGS $($asflags_filter "$@")
 934 }
 935
 936 add_ldflags(){
 937     append LDFLAGS $($ldflags_filter "$@")
 938 }
 939
 940 add_ldexeflags(){
 941     append LDEXEFLAGS $($ldflags_filter "$@")
 942 }
 943
 944 add_ldsoflags(){
 945     append LDSOFLAGS $($ldflags_filter "$@")
 946 }
 947
 948 add_extralibs(){
 949     prepend extralibs $($ldflags_filter "$@")
 950 }
 951
 952 add_stripflags(){
 953     append ASMSTRIPFLAGS "$@"
 954 }
 955
 956 add_host_cppflags(){
 957     append host_cppflags "$@"
 958 }
 959
 960 add_host_cflags(){
 961     append host_cflags $($host_cflags_filter "$@")
 962 }
 963
 964 add_host_ldflags(){
 965     append host_ldflags $($host_ldflags_filter "$@")
 966 }
 967
 968 add_compat(){
 969     append compat_objs $1
 970     shift
 971     map 'add_cppflags -D$v' "$@"
 972 }
 973
 974 test_cmd(){
 975     log "$@"
 976     "$@" >> $logfile 2>&1
 977 }
 978
 979 test_stat(){
 980     log test_stat "$@"
 981     stat "$1" >> $logfile 2>&1
 982 }
 983
 984 cc_e(){
 985     eval printf '%s\\n' $CC_E
 986 }
 987
 988 cc_o(){
 989     eval printf '%s\\n' $CC_O
 990 }
 991
 992 as_o(){
 993     eval printf '%s\\n' $AS_O
 994 }
 995
 996 x86asm_o(){
 997     eval printf '%s\\n' $X86ASM_O
 998 }
 999
1000 ld_o(){
1001     eval printf '%s\\n' $LD_O
1002 }
1003
1004 hostcc_e(){
1005     eval printf '%s\\n' $HOSTCC_E
1006 }
1007
1008 hostcc_o(){
1009     eval printf '%s\\n' $HOSTCC_O
1010 }
1011
1012 nvcc_o(){
1013     eval printf '%s\\n' $NVCC_O
1014 }
1015
1016 test_cc(){
1017     log test_cc "$@"
1018     cat > $TMPC
1019     log_file $TMPC
1020     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
1021 }
1022
1023 test_cxx(){
1024     log test_cxx "$@"
1025     cat > $TMPCPP
1026     log_file $TMPCPP
1027     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1028 }
1029
1030 test_objcc(){
1031     log test_objcc "$@"
1032     cat > $TMPM
1033     log_file $TMPM
1034     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1035 }
1036
1037 test_nvcc(){
1038     log test_nvcc "$@"
1039     cat > $TMPCU
1040     log_file $TMPCU
1041     tmpcu_=$TMPCU
1042     tmpo_=$TMPO
1043     [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
1044     test_cmd $nvcc $nvccflags "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
1045 }
1046
1047 check_nvcc() {
1048     log check_nvcc "$@"
1049     name=$1
1050     shift 1
1051     disabled $name && return
1052     disable $name
1053     test_nvcc "$@" <<EOF && enable $name
1054 extern "C" {
1055     __global__ void hello(unsigned char *data) {}
1056 }
1057 EOF
1058 }
1059
1060 test_cpp(){
1061     log test_cpp "$@"
1062     cat > $TMPC
1063     log_file $TMPC
1064     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1065 }
1066
1067 test_as(){
1068     log test_as "$@"
1069     cat > $TMPS
1070     log_file $TMPS
1071     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1072 }
1073
1074 test_x86asm(){
1075     log test_x86asm "$@"
1076     echo "$1" > $TMPASM
1077     log_file $TMPASM
1078     shift
1079     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1080 }
1081
1082 check_cmd(){
1083     log check_cmd "$@"
1084     cmd=$1
1085     disabled $cmd && return
1086     disable $cmd
1087     test_cmd $@ && enable $cmd
1088 }
1089
1090 check_as(){
1091     log check_as "$@"
1092     name=$1
1093     code=$2
1094     shift 2
1095     disable $name
1096     test_as $@ <<EOF && enable $name
1097 $code
1098 EOF
1099 }
1100
1101 check_inline_asm(){
1102     log check_inline_asm "$@"
1103     name="$1"
1104     code="$2"
1105     shift 2
1106     disable $name
1107     test_cc "$@" <<EOF && enable $name
1108 void foo(void){ __asm__ volatile($code); }
1109 EOF
1110 }
1111
1112 check_inline_asm_flags(){
1113     log check_inline_asm_flags "$@"
1114     name="$1"
1115     code="$2"
1116     flags=''
1117     shift 2
1118     while [ "$1" != "" ]; do
1119       append flags $1
1120       shift
1121     done;
1122     disable $name
1123     cat > $TMPC <<EOF
1124 void foo(void){ __asm__ volatile($code); }
1125 EOF
1126     log_file $TMPC
1127     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1128     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1129 }
1130
1131 check_insn(){
1132     log check_insn "$@"
1133     check_inline_asm ${1}_inline "\"$2\""
1134     check_as ${1}_external "$2"
1135 }
1136
1137 check_x86asm(){
1138     log check_x86asm "$@"
1139     name=$1
1140     shift
1141     disable $name
1142     test_x86asm "$@" && enable $name
1143 }
1144
1145 test_ld(){
1146     log test_ld "$@"
1147     type=$1
1148     shift 1
1149     flags=$(filter_out '-l*|*.so' $@)
1150     libs=$(filter '-l*|*.so' $@)
1151     test_$type $($cflags_filter $flags) || return
1152     flags=$($ldflags_filter $flags)
1153     libs=$($ldflags_filter $libs)
1154     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1155 }
1156
1157 check_ld(){
1158     log check_ld "$@"
1159     type=$1
1160     name=$2
1161     shift 2
1162     disable $name
1163     test_ld $type $@ && enable $name
1164 }
1165
1166 print_include(){
1167     hdr=$1
1168     test "${hdr%.h}" = "${hdr}" &&
1169         echo "#include $hdr"    ||
1170         echo "#include <$hdr>"
1171 }
1172
1173 test_code(){
1174     log test_code "$@"
1175     check=$1
1176     headers=$2
1177     code=$3
1178     shift 3
1179     {
1180         for hdr in $headers; do
1181             print_include $hdr
1182         done
1183         echo "int main(void) { $code; return 0; }"
1184     } | test_$check "$@"
1185 }
1186
1187 check_cppflags(){
1188     log check_cppflags "$@"
1189     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1190 #include <stdlib.h>
1191 EOF
1192 }
1193
1194 test_cflags(){
1195     log test_cflags "$@"
1196     set -- $($cflags_filter "$@")
1197     test_cc "$@" <<EOF
1198 int x;
1199 EOF
1200 }
1201
1202 check_cflags(){
1203     log check_cflags "$@"
1204     test_cflags "$@" && add_cflags "$@"
1205 }
1206
1207 check_cxxflags(){
1208     log check_cxxflags "$@"
1209     set -- $($cflags_filter "$@")
1210     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1211 int x;
1212 EOF
1213 }
1214
1215 test_objcflags(){
1216     log test_objcflags "$@"
1217     set -- $($objcflags_filter "$@")
1218     test_objcc "$@" <<EOF
1219 int x;
1220 EOF
1221 }
1222
1223 check_objcflags(){
1224     log check_objcflags "$@"
1225     test_objcflags "$@" && add_objcflags "$@"
1226 }
1227
1228 test_ldflags(){
1229     log test_ldflags "$@"
1230     set -- $($ldflags_filter "$@")
1231     test_ld "cc" "$@" <<EOF
1232 int main(void){ return 0; }
1233 EOF
1234 }
1235
1236 check_ldflags(){
1237     log check_ldflags "$@"
1238     test_ldflags "$@" && add_ldflags "$@"
1239 }
1240
1241 test_stripflags(){
1242     log test_stripflags "$@"
1243     # call test_cc to get a fresh TMPO
1244     test_cc <<EOF
1245 int main(void) { return 0; }
1246 EOF
1247     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1248 }
1249
1250 check_stripflags(){
1251     log check_stripflags "$@"
1252     test_stripflags "$@" && add_stripflags "$@"
1253 }
1254
1255 check_headers(){
1256     log check_headers "$@"
1257     headers=$1
1258     shift
1259     disable_sanitized $headers
1260     {
1261         for hdr in $headers; do
1262             print_include $hdr
1263         done
1264         echo "int x;"
1265     } | test_cpp "$@" && enable_sanitized $headers
1266 }
1267
1268 check_header_objcc(){
1269     log check_header_objcc "$@"
1270     rm -f -- "$TMPO"
1271     header=$1
1272     shift
1273     disable_sanitized $header
1274     {
1275        echo "#include <$header>"
1276        echo "int main(void) { return 0; }"
1277     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1278 }
1279
1280 check_apple_framework(){
1281     log check_apple_framework "$@"
1282     framework="$1"
1283     name="$(tolower $framework)"
1284     header="${framework}/${framework}.h"
1285     disable $name
1286     check_header_objcc $header &&
1287         enable $name && eval ${name}_extralibs='"-framework $framework"'
1288 }
1289
1290 check_func(){
1291     log check_func "$@"
1292     func=$1
1293     shift
1294     disable $func
1295     test_ld "cc" "$@" <<EOF && enable $func
1296 extern int $func();
1297 int main(void){ $func(); }
1298 EOF
1299 }
1300
1301 check_complexfunc(){
1302     log check_complexfunc "$@"
1303     func=$1
1304     narg=$2
1305     shift 2
1306     test $narg = 2 && args="f, g" || args="f * I"
1307     disable $func
1308     test_ld "cc" "$@" <<EOF && enable $func
1309 #include <complex.h>
1310 #include <math.h>
1311 float foo(complex float f, complex float g) { return $func($args); }
1312 int main(void){ return (int) foo; }
1313 EOF
1314 }
1315
1316 check_mathfunc(){
1317     log check_mathfunc "$@"
1318     func=$1
1319     narg=$2
1320     shift 2
1321     test $narg = 2 && args="f, g" || args="f"
1322     disable $func
1323     test_ld "cc" "$@" <<EOF && enable $func
1324 #include <math.h>
1325 float foo(float f, float g) { return $func($args); }
1326 int main(void){ return (int) foo; }
1327 EOF
1328 }
1329
1330 check_func_headers(){
1331     log check_func_headers "$@"
1332     headers=$1
1333     funcs=$2
1334     shift 2
1335     {
1336         for hdr in $headers; do
1337             print_include $hdr
1338         done
1339         echo "#include <stdint.h>"
1340         for func in $funcs; do
1341             echo "long check_$func(void) { return (long) $func; }"
1342         done
1343         echo "int main(void) { int ret = 0;"
1344         # LTO could optimize out the test functions without this
1345         for func in $funcs; do
1346             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1347         done
1348         echo "return ret; }"
1349     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1350 }
1351
1352 check_class_headers_cpp(){
1353     log check_class_headers_cpp "$@"
1354     headers=$1
1355     classes=$2
1356     shift 2
1357     {
1358         for hdr in $headers; do
1359             echo "#include <$hdr>"
1360         done
1361         echo "int main(void) { "
1362         i=1
1363         for class in $classes; do
1364             echo "$class obj$i;"
1365             i=$(expr $i + 1)
1366         done
1367         echo "return 0; }"
1368     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1369 }
1370
1371 test_cpp_condition(){
1372     log test_cpp_condition "$@"
1373     header=$1
1374     condition=$2
1375     shift 2
1376     test_cpp "$@" <<EOF
1377 #include <$header>
1378 #if !($condition)
1379 #error "unsatisfied condition: $condition"
1380 #endif
1381 EOF
1382 }
1383
1384 check_cpp_condition(){
1385     log check_cpp_condition "$@"
1386     name=$1
1387     shift 1
1388     disable $name
1389     test_cpp_condition "$@" && enable $name
1390 }
1391
1392 test_cflags_cc(){
1393     log test_cflags_cc "$@"
1394     flags=$1
1395     header=$2
1396     condition=$3
1397     shift 3
1398     set -- $($cflags_filter "$flags")
1399     test_cc "$@" <<EOF
1400 #include <$header>
1401 #if !($condition)
1402 #error "unsatisfied condition: $condition"
1403 #endif
1404 EOF
1405 }
1406
1407 check_lib(){
1408     log check_lib "$@"
1409     name="$1"
1410     headers="$2"
1411     funcs="$3"
1412     shift 3
1413     disable $name
1414     check_func_headers "$headers" "$funcs" "$@" &&
1415         enable $name && eval ${name}_extralibs="\$@"
1416 }
1417
1418 check_lib_cpp(){
1419     log check_lib_cpp "$@"
1420     name="$1"
1421     headers="$2"
1422     classes="$3"
1423     shift 3
1424     disable $name
1425     check_class_headers_cpp "$headers" "$classes" "$@" &&
1426         enable $name && eval ${name}_extralibs="\$@"
1427 }
1428
1429 test_pkg_config(){
1430     log test_pkg_config "$@"
1431     name="$1"
1432     pkg_version="$2"
1433     pkg="${2%% *}"
1434     headers="$3"
1435     funcs="$4"
1436     shift 4
1437     disable $name
1438     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1439     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1440     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1441     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1442         enable $name &&
1443         set_sanitized "${name}_cflags"    $pkg_cflags &&
1444         set_sanitized "${name}_extralibs" $pkg_libs
1445 }
1446
1447 check_pkg_config(){
1448     log check_pkg_config "$@"
1449     name="$1"
1450     test_pkg_config "$@" &&
1451         eval add_cflags \$${name}_cflags
1452 }
1453
1454 test_exec(){
1455     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1456 }
1457
1458 check_exec_crash(){
1459     log check_exec_crash "$@"
1460     code=$(cat)
1461
1462     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1463     # are safe but may not be available everywhere.  Thus we use
1464     # raise(SIGTERM) instead.  The check is run in a subshell so we
1465     # can redirect the "Terminated" message from the shell.  SIGBUS
1466     # is not defined by standard C so it is used conditionally.
1467
1468     (test_exec "$@") >> $logfile 2>&1 <<EOF
1469 #include <signal.h>
1470 static void sighandler(int sig){
1471     raise(SIGTERM);
1472 }
1473 int foo(void){
1474     $code
1475 }
1476 int (*func_ptr)(void) = foo;
1477 int main(void){
1478     signal(SIGILL, sighandler);
1479     signal(SIGFPE, sighandler);
1480     signal(SIGSEGV, sighandler);
1481 #ifdef SIGBUS
1482     signal(SIGBUS, sighandler);
1483 #endif
1484     return func_ptr();
1485 }
1486 EOF
1487 }
1488
1489 check_type(){
1490     log check_type "$@"
1491     headers=$1
1492     type=$2
1493     shift 2
1494     disable_sanitized "$type"
1495     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1496 }
1497
1498 check_struct(){
1499     log check_struct "$@"
1500     headers=$1
1501     struct=$2
1502     member=$3
1503     shift 3
1504     disable_sanitized "${struct}_${member}"
1505     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1506         enable_sanitized "${struct}_${member}"
1507 }
1508
1509 check_builtin(){
1510     log check_builtin "$@"
1511     name=$1
1512     headers=$2
1513     builtin=$3
1514     shift 3
1515     disable "$name"
1516     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1517 }
1518
1519 check_compile_assert(){
1520     log check_compile_assert "$@"
1521     name=$1
1522     headers=$2
1523     condition=$3
1524     shift 3
1525     disable "$name"
1526     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1527 }
1528
1529 check_cc(){
1530     log check_cc "$@"
1531     name=$1
1532     shift
1533     disable "$name"
1534     test_code cc "$@" && enable "$name"
1535 }
1536
1537 require(){
1538     log require "$@"
1539     name_version="$1"
1540     name="${1%% *}"
1541     shift
1542     check_lib $name "$@" || die "ERROR: $name_version not found"
1543 }
1544
1545 require_cc(){
1546     log require_cc "$@"
1547     name="$1"
1548     check_cc "$@" || die "ERROR: $name failed"
1549 }
1550
1551 require_cpp(){
1552     name="$1"
1553     headers="$2"
1554     classes="$3"
1555     shift 3
1556     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1557 }
1558
1559 require_headers(){
1560     log require_headers "$@"
1561     headers="$1"
1562     check_headers "$@" || die "ERROR: $headers not found"
1563 }
1564
1565 require_cpp_condition(){
1566     log require_cpp_condition "$@"
1567     condition="$3"
1568     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1569 }
1570
1571 require_pkg_config(){
1572     log require_pkg_config "$@"
1573     pkg_version="$2"
1574     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1575 }
1576
1577 test_host_cc(){
1578     log test_host_cc "$@"
1579     cat > $TMPC
1580     log_file $TMPC
1581     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1582 }
1583
1584 test_host_cpp(){
1585     log test_host_cpp "$@"
1586     cat > $TMPC
1587     log_file $TMPC
1588     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1589 }
1590
1591 check_host_cppflags(){
1592     log check_host_cppflags "$@"
1593     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1594 #include <stdlib.h>
1595 EOF
1596 }
1597
1598 check_host_cflags(){
1599     log check_host_cflags "$@"
1600     set -- $($host_cflags_filter "$@")
1601     test_host_cc "$@" <<EOF && append host_cflags "$@"
1602 int x;
1603 EOF
1604 }
1605
1606 test_host_cpp_condition(){
1607     log test_host_cpp_condition "$@"
1608     header=$1
1609     condition=$2
1610     shift 2
1611     test_host_cpp "$@" <<EOF
1612 #include <$header>
1613 #if !($condition)
1614 #error "unsatisfied condition: $condition"
1615 #endif
1616 EOF
1617 }
1618
1619 check_host_cpp_condition(){
1620     log check_host_cpp_condition "$@"
1621     name=$1
1622     shift 1
1623     disable $name
1624     test_host_cpp_condition "$@" && enable $name
1625 }
1626
1627 cp_if_changed(){
1628     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1629     mkdir -p "$(dirname $2)"
1630     cp -f "$1" "$2"
1631 }
1632
1633 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1634 # system-dependent things.
1635
1636 AVCODEC_COMPONENTS="
1637     bsfs
1638     decoders
1639     encoders
1640     hwaccels
1641     parsers
1642 "
1643
1644 AVDEVICE_COMPONENTS="
1645     indevs
1646     outdevs
1647 "
1648
1649 AVFILTER_COMPONENTS="
1650     filters
1651 "
1652
1653 AVFORMAT_COMPONENTS="
1654     demuxers
1655     muxers
1656     protocols
1657 "
1658
1659 COMPONENT_LIST="
1660     $AVCODEC_COMPONENTS
1661     $AVDEVICE_COMPONENTS
1662     $AVFILTER_COMPONENTS
1663     $AVFORMAT_COMPONENTS
1664 "
1665
1666 EXAMPLE_LIST="
1667     avio_dir_cmd_example
1668     avio_reading_example
1669     decode_audio_example
1670     decode_video_example
1671     demuxing_decoding_example
1672     encode_audio_example
1673     encode_video_example
1674     extract_mvs_example
1675     filter_audio_example
1676     filtering_audio_example
1677     filtering_video_example
1678     http_multiclient_example
1679     hw_decode_example
1680     metadata_example
1681     muxing_example
1682     qsvdec_example
1683     remuxing_example
1684     resampling_audio_example
1685     scaling_video_example
1686     transcode_aac_example
1687     transcoding_example
1688     vaapi_encode_example
1689     vaapi_transcode_example
1690 "
1691
1692 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1693     alsa
1694     appkit
1695     avfoundation
1696     bzlib
1697     coreimage
1698     iconv
1699     libxcb
1700     libxcb_shm
1701     libxcb_shape
1702     libxcb_xfixes
1703     lzma
1704     schannel
1705     sdl2
1706     securetransport
1707     sndio
1708     xlib
1709     zlib
1710 "
1711
1712 EXTERNAL_LIBRARY_GPL_LIST="
1713     avisynth
1714     frei0r
1715     libcdio
1716     libdavs2
1717     librubberband
1718     libvidstab
1719     libx264
1720     libx265
1721     libxavs
1722     libxavs2
1723     libxvid
1724 "
1725
1726 EXTERNAL_LIBRARY_NONFREE_LIST="
1727     decklink
1728     libfdk_aac
1729     openssl
1730     libtls
1731 "
1732
1733 EXTERNAL_LIBRARY_VERSION3_LIST="
1734     gmp
1735     libaribb24
1736     liblensfun
1737     libopencore_amrnb
1738     libopencore_amrwb
1739     libvmaf
1740     libvo_amrwbenc
1741     mbedtls
1742     rkmpp
1743 "
1744
1745 EXTERNAL_LIBRARY_GPLV3_LIST="
1746     libsmbclient
1747 "
1748
1749 EXTERNAL_LIBRARY_LIST="
1750     $EXTERNAL_LIBRARY_GPL_LIST
1751     $EXTERNAL_LIBRARY_NONFREE_LIST
1752     $EXTERNAL_LIBRARY_VERSION3_LIST
1753     $EXTERNAL_LIBRARY_GPLV3_LIST
1754     chromaprint
1755     gcrypt
1756     gnutls
1757     jni
1758     ladspa
1759     libaom
1760     libass
1761     libbluray
1762     libbs2b
1763     libcaca
1764     libcelt
1765     libcodec2
1766     libdav1d
1767     libdc1394
1768     libdrm
1769     libflite
1770     libfontconfig
1771     libfreetype
1772     libfribidi
1773     libgme
1774     libgsm
1775     libiec61883
1776     libilbc
1777     libjack
1778     libklvanc
1779     libkvazaar
1780     libmodplug
1781     libmp3lame
1782     libmysofa
1783     libopencv
1784     libopenh264
1785     libopenjpeg
1786     libopenmpt
1787     libopus
1788     libpulse
1789     librav1e
1790     librsvg
1791     librtmp
1792     libshine
1793     libsmbclient
1794     libsnappy
1795     libsoxr
1796     libspeex
1797     libsrt
1798     libssh
1799     libtensorflow
1800     libtesseract
1801     libtheora
1802     libtwolame
1803     libv4l2
1804     libvorbis
1805     libvpx
1806     libwavpack
1807     libwebp
1808     libxml2
1809     libzimg
1810     libzmq
1811     libzvbi
1812     lv2
1813     mediacodec
1814     openal
1815     opengl
1816     pocketsphinx
1817     vapoursynth
1818 "
1819
1820 HWACCEL_AUTODETECT_LIBRARY_LIST="
1821     amf
1822     audiotoolbox
1823     crystalhd
1824     cuda
1825     cuda_llvm
1826     cuvid
1827     d3d11va
1828     dxva2
1829     ffnvcodec
1830     nvdec
1831     nvenc
1832     vaapi
1833     vdpau
1834     videotoolbox
1835     v4l2_m2m
1836     xvmc
1837 "
1838
1839 # catchall list of things that require external libs to link
1840 EXTRALIBS_LIST="
1841     cpu_init
1842     cws2fws
1843 "
1844
1845 HWACCEL_LIBRARY_NONFREE_LIST="
1846     cuda_nvcc
1847     cuda_sdk
1848     libnpp
1849 "
1850
1851 HWACCEL_LIBRARY_LIST="
1852     $HWACCEL_LIBRARY_NONFREE_LIST
1853     libmfx
1854     mmal
1855     omx
1856     opencl
1857 "
1858
1859 DOCUMENT_LIST="
1860     doc
1861     htmlpages
1862     manpages
1863     podpages
1864     txtpages
1865 "
1866
1867 FEATURE_LIST="
1868     ftrapv
1869     gray
1870     hardcoded_tables
1871     omx_rpi
1872     runtime_cpudetect
1873     safe_bitstream_reader
1874     shared
1875     small
1876     static
1877     swscale_alpha
1878 "
1879
1880 # this list should be kept in linking order
1881 LIBRARY_LIST="
1882     avdevice
1883     avfilter
1884     swscale
1885     postproc
1886     avformat
1887     avcodec
1888     swresample
1889     avresample
1890     avutil
1891 "
1892
1893 LICENSE_LIST="
1894     gpl
1895     nonfree
1896     version3
1897 "
1898
1899 PROGRAM_LIST="
1900     ffplay
1901     ffprobe
1902     ffmpeg
1903 "
1904
1905 SUBSYSTEM_LIST="
1906     dct
1907     dwt
1908     error_resilience
1909     faan
1910     fast_unaligned
1911     fft
1912     lsp
1913     lzo
1914     mdct
1915     pixelutils
1916     network
1917     rdft
1918 "
1919
1920 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1921 CONFIG_LIST="
1922     $DOCUMENT_LIST
1923     $EXAMPLE_LIST
1924     $EXTERNAL_LIBRARY_LIST
1925     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1926     $HWACCEL_LIBRARY_LIST
1927     $HWACCEL_AUTODETECT_LIBRARY_LIST
1928     $FEATURE_LIST
1929     $LICENSE_LIST
1930     $LIBRARY_LIST
1931     $PROGRAM_LIST
1932     $SUBSYSTEM_LIST
1933     autodetect
1934     fontconfig
1935     large_tests
1936     linux_perf
1937     memory_poisoning
1938     neon_clobber_test
1939     ossfuzz
1940     pic
1941     thumb
1942     valgrind_backtrace
1943     xmm_clobber_test
1944     $COMPONENT_LIST
1945 "
1946
1947 THREADS_LIST="
1948     pthreads
1949     os2threads
1950     w32threads
1951 "
1952
1953 ATOMICS_LIST="
1954     atomics_gcc
1955     atomics_suncc
1956     atomics_win32
1957 "
1958
1959 AUTODETECT_LIBS="
1960     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1961     $HWACCEL_AUTODETECT_LIBRARY_LIST
1962     $THREADS_LIST
1963 "
1964
1965 ARCH_LIST="
1966     aarch64
1967     alpha
1968     arm
1969     avr32
1970     avr32_ap
1971     avr32_uc
1972     bfin
1973     ia64
1974     m68k
1975     mips
1976     mips64
1977     parisc
1978     ppc
1979     ppc64
1980     s390
1981     sh4
1982     sparc
1983     sparc64
1984     tilegx
1985     tilepro
1986     tomi
1987     x86
1988     x86_32
1989     x86_64
1990 "
1991
1992 ARCH_EXT_LIST_ARM="
1993     armv5te
1994     armv6
1995     armv6t2
1996     armv8
1997     neon
1998     vfp
1999     vfpv3
2000     setend
2001 "
2002
2003 ARCH_EXT_LIST_MIPS="
2004     mipsfpu
2005     mips32r2
2006     mips32r5
2007     mips64r2
2008     mips32r6
2009     mips64r6
2010     mipsdsp
2011     mipsdspr2
2012     msa
2013     msa2
2014 "
2015
2016 ARCH_EXT_LIST_LOONGSON="
2017     loongson2
2018     loongson3
2019     mmi
2020 "
2021
2022 ARCH_EXT_LIST_X86_SIMD="
2023     aesni
2024     amd3dnow
2025     amd3dnowext
2026     avx
2027     avx2
2028     avx512
2029     fma3
2030     fma4
2031     mmx
2032     mmxext
2033     sse
2034     sse2
2035     sse3
2036     sse4
2037     sse42
2038     ssse3
2039     xop
2040 "
2041
2042 ARCH_EXT_LIST_PPC="
2043     altivec
2044     dcbzl
2045     ldbrx
2046     power8
2047     ppc4xx
2048     vsx
2049 "
2050
2051 ARCH_EXT_LIST_X86="
2052     $ARCH_EXT_LIST_X86_SIMD
2053     cpunop
2054     i686
2055 "
2056
2057 ARCH_EXT_LIST="
2058     $ARCH_EXT_LIST_ARM
2059     $ARCH_EXT_LIST_PPC
2060     $ARCH_EXT_LIST_X86
2061     $ARCH_EXT_LIST_MIPS
2062     $ARCH_EXT_LIST_LOONGSON
2063 "
2064
2065 ARCH_FEATURES="
2066     aligned_stack
2067     fast_64bit
2068     fast_clz
2069     fast_cmov
2070     local_aligned
2071     simd_align_16
2072     simd_align_32
2073     simd_align_64
2074 "
2075
2076 BUILTIN_LIST="
2077     atomic_cas_ptr
2078     machine_rw_barrier
2079     MemoryBarrier
2080     mm_empty
2081     rdtsc
2082     sem_timedwait
2083     sync_val_compare_and_swap
2084 "
2085 HAVE_LIST_CMDLINE="
2086     inline_asm
2087     symver
2088     x86asm
2089 "
2090
2091 HAVE_LIST_PUB="
2092     bigendian
2093     fast_unaligned
2094 "
2095
2096 HEADERS_LIST="
2097     arpa_inet_h
2098     asm_types_h
2099     cdio_paranoia_h
2100     cdio_paranoia_paranoia_h
2101     cuda_h
2102     dispatch_dispatch_h
2103     dev_bktr_ioctl_bt848_h
2104     dev_bktr_ioctl_meteor_h
2105     dev_ic_bt8xx_h
2106     dev_video_bktr_ioctl_bt848_h
2107     dev_video_meteor_ioctl_meteor_h
2108     direct_h
2109     dirent_h
2110     dxgidebug_h
2111     dxva_h
2112     ES2_gl_h
2113     gsm_h
2114     io_h
2115     linux_perf_event_h
2116     machine_ioctl_bt848_h
2117     machine_ioctl_meteor_h
2118     malloc_h
2119     opencv2_core_core_c_h
2120     OpenGL_gl3_h
2121     poll_h
2122     sys_param_h
2123     sys_resource_h
2124     sys_select_h
2125     sys_soundcard_h
2126     sys_time_h
2127     sys_un_h
2128     sys_videoio_h
2129     termios_h
2130     udplite_h
2131     unistd_h
2132     valgrind_valgrind_h
2133     windows_h
2134     winsock2_h
2135 "
2136
2137 INTRINSICS_LIST="
2138     intrinsics_neon
2139 "
2140
2141 COMPLEX_FUNCS="
2142     cabs
2143     cexp
2144 "
2145
2146 MATH_FUNCS="
2147     atanf
2148     atan2f
2149     cbrt
2150     cbrtf
2151     copysign
2152     cosf
2153     erf
2154     exp2
2155     exp2f
2156     expf
2157     hypot
2158     isfinite
2159     isinf
2160     isnan
2161     ldexpf
2162     llrint
2163     llrintf
2164     log2
2165     log2f
2166     log10f
2167     lrint
2168     lrintf
2169     powf
2170     rint
2171     round
2172     roundf
2173     sinf
2174     trunc
2175     truncf
2176 "
2177
2178 SYSTEM_FEATURES="
2179     dos_paths
2180     libc_msvcrt
2181     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2182     section_data_rel_ro
2183     threads
2184     uwp
2185     winrt
2186 "
2187
2188 SYSTEM_FUNCS="
2189     access
2190     aligned_malloc
2191     arc4random
2192     clock_gettime
2193     closesocket
2194     CommandLineToArgvW
2195     fcntl
2196     getaddrinfo
2197     gethrtime
2198     getopt
2199     GetModuleHandle
2200     GetProcessAffinityMask
2201     GetProcessMemoryInfo
2202     GetProcessTimes
2203     getrusage
2204     GetSystemTimeAsFileTime
2205     gettimeofday
2206     glob
2207     glXGetProcAddress
2208     gmtime_r
2209     inet_aton
2210     isatty
2211     kbhit
2212     localtime_r
2213     lstat
2214     lzo1x_999_compress
2215     mach_absolute_time
2216     MapViewOfFile
2217     memalign
2218     mkstemp
2219     mmap
2220     mprotect
2221     nanosleep
2222     PeekNamedPipe
2223     posix_memalign
2224     pthread_cancel
2225     sched_getaffinity
2226     SecItemImport
2227     SetConsoleTextAttribute
2228     SetConsoleCtrlHandler
2229     SetDllDirectory
2230     setmode
2231     setrlimit
2232     Sleep
2233     strerror_r
2234     sysconf
2235     sysctl
2236     usleep
2237     UTGetOSTypeFromString
2238     VirtualAlloc
2239     wglGetProcAddress
2240 "
2241
2242 SYSTEM_LIBRARIES="
2243     bcrypt
2244     vaapi_drm
2245     vaapi_x11
2246     vdpau_x11
2247 "
2248
2249 TOOLCHAIN_FEATURES="
2250     as_arch_directive
2251     as_dn_directive
2252     as_fpu_directive
2253     as_func
2254     as_object_arch
2255     asm_mod_q
2256     blocks_extension
2257     ebp_available
2258     ebx_available
2259     gnu_as
2260     gnu_windres
2261     ibm_asm
2262     inline_asm_direct_symbol_refs
2263     inline_asm_labels
2264     inline_asm_nonlocal_labels
2265     pragma_deprecated
2266     rsync_contimeout
2267     symver_asm_label
2268     symver_gnu_asm
2269     vfp_args
2270     xform_asm
2271     xmm_clobbers
2272 "
2273
2274 TYPES_LIST="
2275     kCMVideoCodecType_HEVC
2276     kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
2277     kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
2278     kCVImageBufferTransferFunction_ITU_R_2100_HLG
2279     kCVImageBufferTransferFunction_Linear
2280     socklen_t
2281     struct_addrinfo
2282     struct_group_source_req
2283     struct_ip_mreq_source
2284     struct_ipv6_mreq
2285     struct_msghdr_msg_flags
2286     struct_pollfd
2287     struct_rusage_ru_maxrss
2288     struct_sctp_event_subscribe
2289     struct_sockaddr_in6
2290     struct_sockaddr_sa_len
2291     struct_sockaddr_storage
2292     struct_stat_st_mtim_tv_nsec
2293     struct_v4l2_frmivalenum_discrete
2294 "
2295
2296 HAVE_LIST="
2297     $ARCH_EXT_LIST
2298     $(add_suffix _external $ARCH_EXT_LIST)
2299     $(add_suffix _inline   $ARCH_EXT_LIST)
2300     $ARCH_FEATURES
2301     $BUILTIN_LIST
2302     $COMPLEX_FUNCS
2303     $HAVE_LIST_CMDLINE
2304     $HAVE_LIST_PUB
2305     $HEADERS_LIST
2306     $INTRINSICS_LIST
2307     $MATH_FUNCS
2308     $SYSTEM_FEATURES
2309     $SYSTEM_FUNCS
2310     $SYSTEM_LIBRARIES
2311     $THREADS_LIST
2312     $TOOLCHAIN_FEATURES
2313     $TYPES_LIST
2314     makeinfo
2315     makeinfo_html
2316     opencl_d3d11
2317     opencl_drm_arm
2318     opencl_drm_beignet
2319     opencl_dxva2
2320     opencl_vaapi_beignet
2321     opencl_vaapi_intel_media
2322     perl
2323     pod2man
2324     texi2html
2325 "
2326
2327 # options emitted with CONFIG_ prefix but not available on the command line
2328 CONFIG_EXTRA="
2329     aandcttables
2330     ac3dsp
2331     adts_header
2332     audio_frame_queue
2333     audiodsp
2334     blockdsp
2335     bswapdsp
2336     cabac
2337     cbs
2338     cbs_av1
2339     cbs_h264
2340     cbs_h265
2341     cbs_jpeg
2342     cbs_mpeg2
2343     cbs_vp9
2344     dirac_parse
2345     dnn
2346     dvprofile
2347     exif
2348     faandct
2349     faanidct
2350     fdctdsp
2351     flacdsp
2352     fmtconvert
2353     frame_thread_encoder
2354     g722dsp
2355     golomb
2356     gplv3
2357     h263dsp
2358     h264chroma
2359     h264dsp
2360     h264parse
2361     h264pred
2362     h264qpel
2363     hevcparse
2364     hpeldsp
2365     huffman
2366     huffyuvdsp
2367     huffyuvencdsp
2368     idctdsp
2369     iirfilter
2370     mdct15
2371     intrax8
2372     iso_media
2373     ividsp
2374     jpegtables
2375     lgplv3
2376     libx262
2377     llauddsp
2378     llviddsp
2379     llvidencdsp
2380     lpc
2381     lzf
2382     me_cmp
2383     mpeg_er
2384     mpegaudio
2385     mpegaudiodsp
2386     mpegaudioheader
2387     mpegvideo
2388     mpegvideoenc
2389     mss34dsp
2390     pixblockdsp
2391     qpeldsp
2392     qsv
2393     qsvdec
2394     qsvenc
2395     qsvvpp
2396     rangecoder
2397     riffdec
2398     riffenc
2399     rtpdec
2400     rtpenc_chain
2401     rv34dsp
2402     scene_sad
2403     sinewin
2404     snappy
2405     srtp
2406     startcode
2407     texturedsp
2408     texturedspenc
2409     tpeldsp
2410     vaapi_1
2411     vaapi_encode
2412     vc1dsp
2413     videodsp
2414     vp3dsp
2415     vp56dsp
2416     vp8dsp
2417     wma_freqs
2418     wmv2dsp
2419 "
2420
2421 CMDLINE_SELECT="
2422     $ARCH_EXT_LIST
2423     $CONFIG_LIST
2424     $HAVE_LIST_CMDLINE
2425     $THREADS_LIST
2426     asm
2427     cross_compile
2428     debug
2429     extra_warnings
2430     logging
2431     lto
2432     optimizations
2433     rpath
2434     stripping
2435 "
2436
2437 PATHS_LIST="
2438     bindir
2439     datadir
2440     docdir
2441     incdir
2442     libdir
2443     mandir
2444     pkgconfigdir
2445     prefix
2446     shlibdir
2447     install_name_dir
2448 "
2449
2450 CMDLINE_SET="
2451     $PATHS_LIST
2452     ar
2453     arch
2454     as
2455     assert_level
2456     build_suffix
2457     cc
2458     objcc
2459     cpu
2460     cross_prefix
2461     custom_allocator
2462     cxx
2463     dep_cc
2464     doxygen
2465     env
2466     extra_version
2467     gas
2468     host_cc
2469     host_cflags
2470     host_extralibs
2471     host_ld
2472     host_ldflags
2473     host_os
2474     ignore_tests
2475     install
2476     ld
2477     ln_s
2478     logfile
2479     malloc_prefix
2480     nm
2481     optflags
2482     nvcc
2483     nvccflags
2484     pkg_config
2485     pkg_config_flags
2486     progs_suffix
2487     random_seed
2488     ranlib
2489     samples
2490     strip
2491     sws_max_filter_size
2492     sysinclude
2493     sysroot
2494     target_exec
2495     target_os
2496     target_path
2497     target_samples
2498     tempprefix
2499     toolchain
2500     valgrind
2501     windres
2502     x86asmexe
2503 "
2504
2505 CMDLINE_APPEND="
2506     extra_cflags
2507     extra_cxxflags
2508     extra_objcflags
2509     host_cppflags
2510 "
2511
2512 # code dependency declarations
2513
2514 # architecture extensions
2515
2516 armv5te_deps="arm"
2517 armv6_deps="arm"
2518 armv6t2_deps="arm"
2519 armv8_deps="aarch64"
2520 neon_deps_any="aarch64 arm"
2521 intrinsics_neon_deps="neon"
2522 vfp_deps_any="aarch64 arm"
2523 vfpv3_deps="vfp"
2524 setend_deps="arm"
2525
2526 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2527
2528 altivec_deps="ppc"
2529 dcbzl_deps="ppc"
2530 ldbrx_deps="ppc"
2531 ppc4xx_deps="ppc"
2532 vsx_deps="altivec"
2533 power8_deps="vsx"
2534
2535 loongson2_deps="mips"
2536 loongson3_deps="mips"
2537 mips32r2_deps="mips"
2538 mips32r5_deps="mips"
2539 mips32r6_deps="mips"
2540 mips64r2_deps="mips"
2541 mips64r6_deps="mips"
2542 mipsfpu_deps="mips"
2543 mipsdsp_deps="mips"
2544 mipsdspr2_deps="mips"
2545 mmi_deps="mips"
2546 msa_deps="mipsfpu"
2547 msa2_deps="msa"
2548
2549 cpunop_deps="i686"
2550 x86_64_select="i686"
2551 x86_64_suggest="fast_cmov"
2552
2553 amd3dnow_deps="mmx"
2554 amd3dnowext_deps="amd3dnow"
2555 i686_deps="x86"
2556 mmx_deps="x86"
2557 mmxext_deps="mmx"
2558 sse_deps="mmxext"
2559 sse2_deps="sse"
2560 sse3_deps="sse2"
2561 ssse3_deps="sse3"
2562 sse4_deps="ssse3"
2563 sse42_deps="sse4"
2564 aesni_deps="sse42"
2565 avx_deps="sse42"
2566 xop_deps="avx"
2567 fma3_deps="avx"
2568 fma4_deps="avx"
2569 avx2_deps="avx"
2570 avx512_deps="avx2"
2571
2572 mmx_external_deps="x86asm"
2573 mmx_inline_deps="inline_asm x86"
2574 mmx_suggest="mmx_external mmx_inline"
2575
2576 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2577     eval dep=\$${ext}_deps
2578     eval ${ext}_external_deps='"${dep}_external"'
2579     eval ${ext}_inline_deps='"${dep}_inline"'
2580     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2581 done
2582
2583 aligned_stack_if_any="aarch64 ppc x86"
2584 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2585 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2586 fast_unaligned_if_any="aarch64 ppc x86"
2587 simd_align_16_if_any="altivec neon sse"
2588 simd_align_32_if_any="avx"
2589 simd_align_64_if_any="avx512"
2590
2591 # system capabilities
2592 linux_perf_deps="linux_perf_event_h"
2593 symver_if_any="symver_asm_label symver_gnu_asm"
2594 valgrind_backtrace_conflict="optimizations"
2595 valgrind_backtrace_deps="valgrind_valgrind_h"
2596
2597 # threading support
2598 atomics_gcc_if="sync_val_compare_and_swap"
2599 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2600 atomics_win32_if="MemoryBarrier"
2601 atomics_native_if_any="$ATOMICS_LIST"
2602 w32threads_deps="atomics_native"
2603 threads_if_any="$THREADS_LIST"
2604
2605 # subsystems
2606 cbs_av1_select="cbs"
2607 cbs_h264_select="cbs"
2608 cbs_h265_select="cbs"
2609 cbs_jpeg_select="cbs"
2610 cbs_mpeg2_select="cbs"
2611 cbs_vp9_select="cbs"
2612 dct_select="rdft"
2613 dirac_parse_select="golomb"
2614 dnn_suggest="libtensorflow"
2615 error_resilience_select="me_cmp"
2616 faandct_deps="faan"
2617 faandct_select="fdctdsp"
2618 faanidct_deps="faan"
2619 faanidct_select="idctdsp"
2620 h264dsp_select="startcode"
2621 hevcparse_select="golomb"
2622 frame_thread_encoder_deps="encoders threads"
2623 intrax8_select="blockdsp idctdsp"
2624 mdct_select="fft"
2625 mdct15_select="fft"
2626 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2627 mpeg_er_select="error_resilience"
2628 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2629 mpegaudiodsp_select="dct"
2630 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2631 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2632 vc1dsp_select="h264chroma qpeldsp startcode"
2633 rdft_select="fft"
2634
2635 # decoders / encoders
2636 aac_decoder_select="adts_header mdct15 mdct sinewin"
2637 aac_fixed_decoder_select="adts_header mdct sinewin"
2638 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2639 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2640 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2641 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2642 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2643 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2644 acelp_kelvin_decoder_select="audiodsp"
2645 adpcm_g722_decoder_select="g722dsp"
2646 adpcm_g722_encoder_select="g722dsp"
2647 aic_decoder_select="golomb idctdsp"
2648 alac_encoder_select="lpc"
2649 als_decoder_select="bswapdsp"
2650 amrnb_decoder_select="lsp"
2651 amrwb_decoder_select="lsp"
2652 amv_decoder_select="sp5x_decoder exif"
2653 amv_encoder_select="jpegtables mpegvideoenc"
2654 ape_decoder_select="bswapdsp llauddsp"
2655 apng_decoder_deps="zlib"
2656 apng_encoder_deps="zlib"
2657 apng_encoder_select="llvidencdsp"
2658 aptx_decoder_select="audio_frame_queue"
2659 aptx_encoder_select="audio_frame_queue"
2660 aptx_hd_decoder_select="audio_frame_queue"
2661 aptx_hd_encoder_select="audio_frame_queue"
2662 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2663 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2664 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2665 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2666 atrac1_decoder_select="mdct sinewin"
2667 atrac3_decoder_select="mdct"
2668 atrac3al_decoder_select="mdct"
2669 atrac3p_decoder_select="mdct sinewin"
2670 atrac3pal_decoder_select="mdct sinewin"
2671 atrac9_decoder_select="mdct"
2672 avrn_decoder_select="exif jpegtables"
2673 bink_decoder_select="blockdsp hpeldsp"
2674 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2675 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2676 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2677 clearvideo_decoder_select="idctdsp"
2678 cllc_decoder_select="bswapdsp"
2679 comfortnoise_encoder_select="lpc"
2680 cook_decoder_select="audiodsp mdct sinewin"
2681 cscd_decoder_select="lzo"
2682 cscd_decoder_suggest="zlib"
2683 dca_decoder_select="mdct"
2684 dca_encoder_select="mdct"
2685 dds_decoder_select="texturedsp"
2686 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2687 dnxhd_decoder_select="blockdsp idctdsp"
2688 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2689 dolby_e_decoder_select="mdct"
2690 dvvideo_decoder_select="dvprofile idctdsp"
2691 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2692 dxa_decoder_deps="zlib"
2693 dxv_decoder_select="lzf texturedsp"
2694 eac3_decoder_select="ac3_decoder"
2695 eac3_encoder_select="ac3_encoder"
2696 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2697 eatgq_decoder_select="aandcttables"
2698 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2699 exr_decoder_deps="zlib"
2700 ffv1_decoder_select="rangecoder"
2701 ffv1_encoder_select="rangecoder"
2702 ffvhuff_decoder_select="huffyuv_decoder"
2703 ffvhuff_encoder_select="huffyuv_encoder"
2704 fic_decoder_select="golomb"
2705 flac_decoder_select="flacdsp"
2706 flac_encoder_select="bswapdsp flacdsp lpc"
2707 flashsv2_decoder_deps="zlib"
2708 flashsv2_encoder_deps="zlib"
2709 flashsv_decoder_deps="zlib"
2710 flashsv_encoder_deps="zlib"
2711 flv_decoder_select="h263_decoder"
2712 flv_encoder_select="h263_encoder"
2713 fourxm_decoder_select="blockdsp bswapdsp"
2714 fraps_decoder_select="bswapdsp huffman"
2715 g2m_decoder_deps="zlib"
2716 g2m_decoder_select="blockdsp idctdsp jpegtables"
2717 g729_decoder_select="audiodsp"
2718 h261_decoder_select="mpegvideo"
2719 h261_encoder_select="mpegvideoenc"
2720 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2721 h263_encoder_select="h263dsp mpegvideoenc"
2722 h263i_decoder_select="h263_decoder"
2723 h263p_decoder_select="h263_decoder"
2724 h263p_encoder_select="h263_encoder"
2725 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2726 h264_decoder_suggest="error_resilience"
2727 hap_decoder_select="snappy texturedsp"
2728 hap_encoder_deps="libsnappy"
2729 hap_encoder_select="texturedspenc"
2730 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2731 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2732 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2733 hymt_decoder_select="huffyuv_decoder"
2734 iac_decoder_select="imc_decoder"
2735 imc_decoder_select="bswapdsp fft mdct sinewin"
2736 imm4_decoder_select="bswapdsp"
2737 imm5_decoder_select="h264_decoder hevc_decoder"
2738 indeo3_decoder_select="hpeldsp"
2739 indeo4_decoder_select="ividsp"
2740 indeo5_decoder_select="ividsp"
2741 interplay_video_decoder_select="hpeldsp"
2742 jpegls_decoder_select="mjpeg_decoder"
2743 jv_decoder_select="blockdsp"
2744 lagarith_decoder_select="llviddsp"
2745 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2746 lscr_decoder_deps="zlib"
2747 magicyuv_decoder_select="llviddsp"
2748 magicyuv_encoder_select="llvidencdsp"
2749 mdec_decoder_select="blockdsp bswapdsp idctdsp mpegvideo"
2750 metasound_decoder_select="lsp mdct sinewin"
2751 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2752 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2753 mjpeg_encoder_select="jpegtables mpegvideoenc"
2754 mjpegb_decoder_select="mjpeg_decoder"
2755 mlp_decoder_select="mlp_parser"
2756 mlp_encoder_select="lpc audio_frame_queue"
2757 motionpixels_decoder_select="bswapdsp"
2758 mp1_decoder_select="mpegaudio"
2759 mp1float_decoder_select="mpegaudio"
2760 mp2_decoder_select="mpegaudio"
2761 mp2float_decoder_select="mpegaudio"
2762 mp3_decoder_select="mpegaudio"
2763 mp3adu_decoder_select="mpegaudio"
2764 mp3adufloat_decoder_select="mpegaudio"
2765 mp3float_decoder_select="mpegaudio"
2766 mp3on4_decoder_select="mpegaudio"
2767 mp3on4float_decoder_select="mpegaudio"
2768 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2769 mpc8_decoder_select="mpegaudiodsp"
2770 mpegvideo_decoder_select="mpegvideo"
2771 mpeg1video_decoder_select="mpegvideo"
2772 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2773 mpeg2video_decoder_select="mpegvideo"
2774 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2775 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2776 mpeg4_encoder_select="h263_encoder"
2777 msa1_decoder_select="mss34dsp"
2778 mscc_decoder_deps="zlib"
2779 msmpeg4v1_decoder_select="h263_decoder"
2780 msmpeg4v2_decoder_select="h263_decoder"
2781 msmpeg4v2_encoder_select="h263_encoder"
2782 msmpeg4v3_decoder_select="h263_decoder"
2783 msmpeg4v3_encoder_select="h263_encoder"
2784 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2785 mts2_decoder_select="mss34dsp"
2786 mvha_decoder_deps="zlib"
2787 mwsc_decoder_deps="zlib"
2788 mxpeg_decoder_select="mjpeg_decoder"
2789 nellymoser_decoder_select="mdct sinewin"
2790 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2791 nuv_decoder_select="idctdsp lzo"
2792 on2avc_decoder_select="mdct"
2793 opus_decoder_deps="swresample"
2794 opus_decoder_select="mdct15"
2795 opus_encoder_select="audio_frame_queue mdct15"
2796 png_decoder_deps="zlib"
2797 png_encoder_deps="zlib"
2798 png_encoder_select="llvidencdsp"
2799 prores_decoder_select="blockdsp idctdsp"
2800 prores_encoder_select="fdctdsp"
2801 qcelp_decoder_select="lsp"
2802 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2803 ra_144_decoder_select="audiodsp"
2804 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2805 ralf_decoder_select="golomb"
2806 rasc_decoder_deps="zlib"
2807 rawvideo_decoder_select="bswapdsp"
2808 rscc_decoder_deps="zlib"
2809 rtjpeg_decoder_select="me_cmp"
2810 rv10_decoder_select="h263_decoder"
2811 rv10_encoder_select="h263_encoder"
2812 rv20_decoder_select="h263_decoder"
2813 rv20_encoder_select="h263_encoder"
2814 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2815 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2816 screenpresso_decoder_deps="zlib"
2817 shorten_decoder_select="bswapdsp"
2818 sipr_decoder_select="lsp"
2819 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2820 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2821 sonic_decoder_select="golomb rangecoder"
2822 sonic_encoder_select="golomb rangecoder"
2823 sonic_ls_encoder_select="golomb rangecoder"
2824 sp5x_decoder_select="mjpeg_decoder"
2825 speedhq_decoder_select="mpegvideo"
2826 srgc_decoder_deps="zlib"
2827 svq1_decoder_select="hpeldsp"
2828 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2829 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2830 svq3_decoder_suggest="zlib"
2831 tak_decoder_select="audiodsp"
2832 tdsc_decoder_deps="zlib"
2833 tdsc_decoder_select="mjpeg_decoder"
2834 theora_decoder_select="vp3_decoder"
2835 thp_decoder_select="mjpeg_decoder"
2836 tiff_decoder_select="mjpeg_decoder"
2837 tiff_decoder_suggest="zlib lzma"
2838 tiff_encoder_suggest="zlib"
2839 truehd_decoder_select="mlp_parser"
2840 truehd_encoder_select="lpc audio_frame_queue"
2841 truemotion2_decoder_select="bswapdsp"
2842 truespeech_decoder_select="bswapdsp"
2843 tscc_decoder_deps="zlib"
2844 twinvq_decoder_select="mdct lsp sinewin"
2845 txd_decoder_select="texturedsp"
2846 utvideo_decoder_select="bswapdsp llviddsp"
2847 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2848 vble_decoder_select="llviddsp"
2849 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2850 vc1image_decoder_select="vc1_decoder"
2851 vorbis_decoder_select="mdct"
2852 vorbis_encoder_select="audio_frame_queue mdct"
2853 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2854 vp4_decoder_select="vp3_decoder"
2855 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2856 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2857 vp6a_decoder_select="vp6_decoder"
2858 vp6f_decoder_select="vp6_decoder"
2859 vp7_decoder_select="h264pred videodsp vp8dsp"
2860 vp8_decoder_select="h264pred videodsp vp8dsp"
2861 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2862 wcmv_decoder_deps="zlib"
2863 webp_decoder_select="vp8_decoder exif"
2864 wmalossless_decoder_select="llauddsp"
2865 wmapro_decoder_select="mdct sinewin wma_freqs"
2866 wmav1_decoder_select="mdct sinewin wma_freqs"
2867 wmav1_encoder_select="mdct sinewin wma_freqs"
2868 wmav2_decoder_select="mdct sinewin wma_freqs"
2869 wmav2_encoder_select="mdct sinewin wma_freqs"
2870 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2871 wmv1_decoder_select="h263_decoder"
2872 wmv1_encoder_select="h263_encoder"
2873 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2874 wmv2_encoder_select="h263_encoder wmv2dsp"
2875 wmv3_decoder_select="vc1_decoder"
2876 wmv3image_decoder_select="wmv3_decoder"
2877 xma1_decoder_select="wmapro_decoder"
2878 xma2_decoder_select="wmapro_decoder"
2879 ylc_decoder_select="bswapdsp"
2880 zerocodec_decoder_deps="zlib"
2881 zlib_decoder_deps="zlib"
2882 zlib_encoder_deps="zlib"
2883 zmbv_decoder_deps="zlib"
2884 zmbv_encoder_deps="zlib"
2885
2886 # hardware accelerators
2887 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2888 cuda_deps="ffnvcodec"
2889 cuvid_deps="ffnvcodec"
2890 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2891 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2892 ffnvcodec_deps_any="libdl LoadLibrary"
2893 nvdec_deps="ffnvcodec"
2894 vaapi_x11_deps="xlib"
2895 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2896 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2897 xvmc_deps="X11_extensions_XvMClib_h"
2898
2899 h263_vaapi_hwaccel_deps="vaapi"
2900 h263_vaapi_hwaccel_select="h263_decoder"
2901 h263_videotoolbox_hwaccel_deps="videotoolbox"
2902 h263_videotoolbox_hwaccel_select="h263_decoder"
2903 h264_d3d11va_hwaccel_deps="d3d11va"
2904 h264_d3d11va_hwaccel_select="h264_decoder"
2905 h264_d3d11va2_hwaccel_deps="d3d11va"
2906 h264_d3d11va2_hwaccel_select="h264_decoder"
2907 h264_dxva2_hwaccel_deps="dxva2"
2908 h264_dxva2_hwaccel_select="h264_decoder"
2909 h264_nvdec_hwaccel_deps="nvdec"
2910 h264_nvdec_hwaccel_select="h264_decoder"
2911 h264_vaapi_hwaccel_deps="vaapi"
2912 h264_vaapi_hwaccel_select="h264_decoder"
2913 h264_vdpau_hwaccel_deps="vdpau"
2914 h264_vdpau_hwaccel_select="h264_decoder"
2915 h264_videotoolbox_hwaccel_deps="videotoolbox"
2916 h264_videotoolbox_hwaccel_select="h264_decoder"
2917 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2918 hevc_d3d11va_hwaccel_select="hevc_decoder"
2919 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2920 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2921 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2922 hevc_dxva2_hwaccel_select="hevc_decoder"
2923 hevc_nvdec_hwaccel_deps="nvdec"
2924 hevc_nvdec_hwaccel_select="hevc_decoder"
2925 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2926 hevc_vaapi_hwaccel_select="hevc_decoder"
2927 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2928 hevc_vdpau_hwaccel_select="hevc_decoder"
2929 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2930 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2931 mjpeg_nvdec_hwaccel_deps="nvdec"
2932 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2933 mjpeg_vaapi_hwaccel_deps="vaapi"
2934 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2935 mpeg_xvmc_hwaccel_deps="xvmc"
2936 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2937 mpeg1_nvdec_hwaccel_deps="nvdec"
2938 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2939 mpeg1_vdpau_hwaccel_deps="vdpau"
2940 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2941 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2942 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2943 mpeg1_xvmc_hwaccel_deps="xvmc"
2944 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2945 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2946 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2947 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2948 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2949 mpeg2_dxva2_hwaccel_deps="dxva2"
2950 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2951 mpeg2_nvdec_hwaccel_deps="nvdec"
2952 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2953 mpeg2_vaapi_hwaccel_deps="vaapi"
2954 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2955 mpeg2_vdpau_hwaccel_deps="vdpau"
2956 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2957 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2958 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2959 mpeg2_xvmc_hwaccel_deps="xvmc"
2960 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2961 mpeg4_nvdec_hwaccel_deps="nvdec"
2962 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2963 mpeg4_vaapi_hwaccel_deps="vaapi"
2964 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2965 mpeg4_vdpau_hwaccel_deps="vdpau"
2966 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2967 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2968 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2969 vc1_d3d11va_hwaccel_deps="d3d11va"
2970 vc1_d3d11va_hwaccel_select="vc1_decoder"
2971 vc1_d3d11va2_hwaccel_deps="d3d11va"
2972 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2973 vc1_dxva2_hwaccel_deps="dxva2"
2974 vc1_dxva2_hwaccel_select="vc1_decoder"
2975 vc1_nvdec_hwaccel_deps="nvdec"
2976 vc1_nvdec_hwaccel_select="vc1_decoder"
2977 vc1_vaapi_hwaccel_deps="vaapi"
2978 vc1_vaapi_hwaccel_select="vc1_decoder"
2979 vc1_vdpau_hwaccel_deps="vdpau"
2980 vc1_vdpau_hwaccel_select="vc1_decoder"
2981 vp8_nvdec_hwaccel_deps="nvdec"
2982 vp8_nvdec_hwaccel_select="vp8_decoder"
2983 vp8_vaapi_hwaccel_deps="vaapi"
2984 vp8_vaapi_hwaccel_select="vp8_decoder"
2985 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2986 vp9_d3d11va_hwaccel_select="vp9_decoder"
2987 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2988 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2989 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2990 vp9_dxva2_hwaccel_select="vp9_decoder"
2991 vp9_nvdec_hwaccel_deps="nvdec"
2992 vp9_nvdec_hwaccel_select="vp9_decoder"
2993 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2994 vp9_vaapi_hwaccel_select="vp9_decoder"
2995 vp9_vdpau_hwaccel_deps="vdpau VdpPictureInfoVP9"
2996 vp9_vdpau_hwaccel_select="vp9_decoder"
2997 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2998 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2999 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
3000 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
3001 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
3002 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
3003
3004 # hardware-accelerated codecs
3005 omx_deps="libdl pthreads"
3006 omx_rpi_select="omx"
3007 qsv_deps="libmfx"
3008 qsvdec_select="qsv"
3009 qsvenc_select="qsv"
3010 qsvvpp_select="qsv"
3011 vaapi_encode_deps="vaapi"
3012 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
3013
3014 hwupload_cuda_filter_deps="ffnvcodec"
3015 scale_npp_filter_deps="ffnvcodec libnpp"
3016 scale_cuda_filter_deps="ffnvcodec"
3017 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3018 thumbnail_cuda_filter_deps="ffnvcodec"
3019 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3020 transpose_npp_filter_deps="ffnvcodec libnpp"
3021
3022 amf_deps_any="libdl LoadLibrary"
3023 nvenc_deps="ffnvcodec"
3024 nvenc_deps_any="libdl LoadLibrary"
3025 nvenc_encoder_deps="nvenc"
3026
3027 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3028 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3029 h264_amf_encoder_deps="amf"
3030 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3031 h264_cuvid_decoder_deps="cuvid"
3032 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3033 h264_mediacodec_decoder_deps="mediacodec"
3034 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3035 h264_mmal_decoder_deps="mmal"
3036 h264_nvenc_encoder_deps="nvenc"
3037 h264_omx_encoder_deps="omx"
3038 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3039 h264_qsv_encoder_select="qsvenc"
3040 h264_rkmpp_decoder_deps="rkmpp"
3041 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3042 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3043 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3044 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3045 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3046 hevc_amf_encoder_deps="amf"
3047 hevc_cuvid_decoder_deps="cuvid"
3048 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3049 hevc_mediacodec_decoder_deps="mediacodec"
3050 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3051 hevc_nvenc_encoder_deps="nvenc"
3052 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3053 hevc_qsv_encoder_select="hevcparse qsvenc"
3054 hevc_rkmpp_decoder_deps="rkmpp"
3055 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3056 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3057 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3058 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3059 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3060 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3061 mjpeg_cuvid_decoder_deps="cuvid"
3062 mjpeg_qsv_decoder_select="qsvdec"
3063 mjpeg_qsv_encoder_deps="libmfx"
3064 mjpeg_qsv_encoder_select="qsvenc"
3065 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3066 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3067 mpeg1_cuvid_decoder_deps="cuvid"
3068 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3069 mpeg2_crystalhd_decoder_select="crystalhd"
3070 mpeg2_cuvid_decoder_deps="cuvid"
3071 mpeg2_mmal_decoder_deps="mmal"
3072 mpeg2_mediacodec_decoder_deps="mediacodec"
3073 mpeg2_qsv_decoder_select="qsvdec"
3074 mpeg2_qsv_encoder_select="qsvenc"
3075 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3076 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3077 mpeg4_crystalhd_decoder_select="crystalhd"
3078 mpeg4_cuvid_decoder_deps="cuvid"
3079 mpeg4_mediacodec_decoder_deps="mediacodec"
3080 mpeg4_mmal_decoder_deps="mmal"
3081 mpeg4_omx_encoder_deps="omx"
3082 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3083 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3084 msmpeg4_crystalhd_decoder_select="crystalhd"
3085 nvenc_h264_encoder_select="h264_nvenc_encoder"
3086 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3087 vc1_crystalhd_decoder_select="crystalhd"
3088 vc1_cuvid_decoder_deps="cuvid"
3089 vc1_mmal_decoder_deps="mmal"
3090 vc1_qsv_decoder_select="qsvdec"
3091 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3092 vp8_cuvid_decoder_deps="cuvid"
3093 vp8_mediacodec_decoder_deps="mediacodec"
3094 vp8_qsv_decoder_select="qsvdec"
3095 vp8_rkmpp_decoder_deps="rkmpp"
3096 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3097 vp8_vaapi_encoder_select="vaapi_encode"
3098 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3099 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3100 vp9_cuvid_decoder_deps="cuvid"
3101 vp9_mediacodec_decoder_deps="mediacodec"
3102 vp9_qsv_decoder_select="qsvdec"
3103 vp9_rkmpp_decoder_deps="rkmpp"
3104 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3105 vp9_vaapi_encoder_select="vaapi_encode"
3106 vp9_qsv_encoder_deps="libmfx MFX_CODEC_VP9"
3107 vp9_qsv_encoder_select="qsvenc"
3108 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3109 wmv3_crystalhd_decoder_select="crystalhd"
3110
3111 # parsers
3112 aac_parser_select="adts_header"
3113 av1_parser_select="cbs_av1"
3114 h264_parser_select="golomb h264dsp h264parse"
3115 hevc_parser_select="hevcparse"
3116 mpegaudio_parser_select="mpegaudioheader"
3117 mpegvideo_parser_select="mpegvideo"
3118 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3119 vc1_parser_select="vc1dsp"
3120
3121 # bitstream_filters
3122 aac_adtstoasc_bsf_select="adts_header"
3123 av1_frame_merge_bsf_select="cbs_av1"
3124 av1_frame_split_bsf_select="cbs_av1"
3125 av1_metadata_bsf_select="cbs_av1"
3126 eac3_core_bsf_select="ac3_parser"
3127 filter_units_bsf_select="cbs"
3128 h264_metadata_bsf_deps="const_nan"
3129 h264_metadata_bsf_select="cbs_h264"
3130 h264_redundant_pps_bsf_select="cbs_h264"
3131 hevc_metadata_bsf_select="cbs_h265"
3132 mjpeg2jpeg_bsf_select="jpegtables"
3133 mpeg2_metadata_bsf_select="cbs_mpeg2"
3134 trace_headers_bsf_select="cbs"
3135 vp9_metadata_bsf_select="cbs_vp9"
3136
3137 # external libraries
3138 aac_at_decoder_deps="audiotoolbox"
3139 aac_at_decoder_select="aac_adtstoasc_bsf"
3140 ac3_at_decoder_deps="audiotoolbox"
3141 ac3_at_decoder_select="ac3_parser"
3142 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3143 alac_at_decoder_deps="audiotoolbox"
3144 amr_nb_at_decoder_deps="audiotoolbox"
3145 avisynth_deps_any="libdl LoadLibrary"
3146 avisynth_demuxer_deps="avisynth"
3147 avisynth_demuxer_select="riffdec"
3148 eac3_at_decoder_deps="audiotoolbox"
3149 eac3_at_decoder_select="ac3_parser"
3150 gsm_ms_at_decoder_deps="audiotoolbox"
3151 ilbc_at_decoder_deps="audiotoolbox"
3152 mp1_at_decoder_deps="audiotoolbox"
3153 mp2_at_decoder_deps="audiotoolbox"
3154 mp3_at_decoder_deps="audiotoolbox"
3155 mp1_at_decoder_select="mpegaudioheader"
3156 mp2_at_decoder_select="mpegaudioheader"
3157 mp3_at_decoder_select="mpegaudioheader"
3158 pcm_alaw_at_decoder_deps="audiotoolbox"
3159 pcm_mulaw_at_decoder_deps="audiotoolbox"
3160 qdmc_decoder_select="fft"
3161 qdmc_at_decoder_deps="audiotoolbox"
3162 qdm2_at_decoder_deps="audiotoolbox"
3163 aac_at_encoder_deps="audiotoolbox"
3164 aac_at_encoder_select="audio_frame_queue"
3165 alac_at_encoder_deps="audiotoolbox"
3166 alac_at_encoder_select="audio_frame_queue"
3167 ilbc_at_encoder_deps="audiotoolbox"
3168 ilbc_at_encoder_select="audio_frame_queue"
3169 pcm_alaw_at_encoder_deps="audiotoolbox"
3170 pcm_alaw_at_encoder_select="audio_frame_queue"
3171 pcm_mulaw_at_encoder_deps="audiotoolbox"
3172 pcm_mulaw_at_encoder_select="audio_frame_queue"
3173 chromaprint_muxer_deps="chromaprint"
3174 h264_videotoolbox_encoder_deps="pthreads"
3175 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3176 hevc_videotoolbox_encoder_deps="pthreads"
3177 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3178 libaom_av1_decoder_deps="libaom"
3179 libaom_av1_encoder_deps="libaom"
3180 libaom_av1_encoder_select="extract_extradata_bsf"
3181 libaribb24_decoder_deps="libaribb24"
3182 libcelt_decoder_deps="libcelt"
3183 libcodec2_decoder_deps="libcodec2"
3184 libcodec2_encoder_deps="libcodec2"
3185 libdav1d_decoder_deps="libdav1d"
3186 libdavs2_decoder_deps="libdavs2"
3187 libfdk_aac_decoder_deps="libfdk_aac"
3188 libfdk_aac_encoder_deps="libfdk_aac"
3189 libfdk_aac_encoder_select="audio_frame_queue"
3190 libgme_demuxer_deps="libgme"
3191 libgsm_decoder_deps="libgsm"
3192 libgsm_encoder_deps="libgsm"
3193 libgsm_ms_decoder_deps="libgsm"
3194 libgsm_ms_encoder_deps="libgsm"
3195 libilbc_decoder_deps="libilbc"
3196 libilbc_encoder_deps="libilbc"
3197 libkvazaar_encoder_deps="libkvazaar"
3198 libmodplug_demuxer_deps="libmodplug"
3199 libmp3lame_encoder_deps="libmp3lame"
3200 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3201 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3202 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3203 libopencore_amrnb_encoder_select="audio_frame_queue"
3204 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3205 libopenh264_decoder_deps="libopenh264"
3206 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3207 libopenh264_encoder_deps="libopenh264"
3208 libopenjpeg_decoder_deps="libopenjpeg"
3209 libopenjpeg_encoder_deps="libopenjpeg"
3210 libopenmpt_demuxer_deps="libopenmpt"
3211 libopus_decoder_deps="libopus"
3212 libopus_encoder_deps="libopus"
3213 libopus_encoder_select="audio_frame_queue"
3214 librav1e_encoder_deps="librav1e"
3215 librav1e_encoder_select="extract_extradata_bsf"
3216 librsvg_decoder_deps="librsvg"
3217 libshine_encoder_deps="libshine"
3218 libshine_encoder_select="audio_frame_queue"
3219 libspeex_decoder_deps="libspeex"
3220 libspeex_encoder_deps="libspeex"
3221 libspeex_encoder_select="audio_frame_queue"
3222 libtheora_encoder_deps="libtheora"
3223 libtwolame_encoder_deps="libtwolame"
3224 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3225 libvorbis_decoder_deps="libvorbis"
3226 libvorbis_encoder_deps="libvorbis libvorbisenc"
3227 libvorbis_encoder_select="audio_frame_queue"
3228 libvpx_vp8_decoder_deps="libvpx"
3229 libvpx_vp8_encoder_deps="libvpx"
3230 libvpx_vp9_decoder_deps="libvpx"
3231 libvpx_vp9_encoder_deps="libvpx"
3232 libwavpack_encoder_deps="libwavpack"
3233 libwavpack_encoder_select="audio_frame_queue"
3234 libwebp_encoder_deps="libwebp"
3235 libwebp_anim_encoder_deps="libwebp"
3236 libx262_encoder_deps="libx262"
3237 libx264_encoder_deps="libx264"
3238 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3239 libx264rgb_encoder_select="libx264_encoder"
3240 libx265_encoder_deps="libx265"
3241 libxavs_encoder_deps="libxavs"
3242 libxavs2_encoder_deps="libxavs2"
3243 libxvid_encoder_deps="libxvid"
3244 libzvbi_teletext_decoder_deps="libzvbi"
3245 vapoursynth_demuxer_deps="vapoursynth"
3246 videotoolbox_suggest="coreservices"
3247 videotoolbox_deps="corefoundation coremedia corevideo"
3248 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3249
3250 # demuxers / muxers
3251 ac3_demuxer_select="ac3_parser"
3252 act_demuxer_select="riffdec"
3253 aiff_muxer_select="iso_media"
3254 asf_demuxer_select="riffdec"
3255 asf_o_demuxer_select="riffdec"
3256 asf_muxer_select="riffenc"
3257 asf_stream_muxer_select="asf_muxer"
3258 av1_demuxer_select="av1_frame_merge_bsf av1_parser"
3259 avi_demuxer_select="iso_media riffdec exif"
3260 avi_muxer_select="riffenc"
3261 caf_demuxer_select="iso_media riffdec"
3262 caf_muxer_select="iso_media"
3263 dash_muxer_select="mp4_muxer"
3264 dash_demuxer_deps="libxml2"
3265 dirac_demuxer_select="dirac_parser"
3266 dts_demuxer_select="dca_parser"
3267 dtshd_demuxer_select="dca_parser"
3268 dv_demuxer_select="dvprofile"
3269 dv_muxer_select="dvprofile"
3270 dxa_demuxer_select="riffdec"
3271 eac3_demuxer_select="ac3_parser"
3272 f4v_muxer_select="mov_muxer"
3273 fifo_muxer_deps="threads"
3274 flac_demuxer_select="flac_parser"
3275 hds_muxer_select="flv_muxer"
3276 hls_muxer_select="mpegts_muxer"
3277 hls_muxer_suggest="gcrypt openssl"
3278 image2_alias_pix_demuxer_select="image2_demuxer"
3279 image2_brender_pix_demuxer_select="image2_demuxer"
3280 ipod_muxer_select="mov_muxer"
3281 ismv_muxer_select="mov_muxer"
3282 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3283 matroska_audio_muxer_select="matroska_muxer"
3284 matroska_demuxer_select="iso_media riffdec"
3285 matroska_demuxer_suggest="bzlib lzo zlib"
3286 matroska_muxer_select="iso_media riffenc"
3287 mmf_muxer_select="riffenc"
3288 mov_demuxer_select="iso_media riffdec"
3289 mov_demuxer_suggest="zlib"
3290 mov_muxer_select="iso_media riffenc rtpenc_chain"
3291 mp3_demuxer_select="mpegaudio_parser"
3292 mp3_muxer_select="mpegaudioheader"
3293 mp4_muxer_select="mov_muxer"
3294 mpegts_demuxer_select="iso_media"
3295 mpegts_muxer_select="adts_muxer latm_muxer"
3296 mpegtsraw_demuxer_select="mpegts_demuxer"
3297 mxf_muxer_select="golomb"
3298 mxf_d10_muxer_select="mxf_muxer"
3299 mxf_opatom_muxer_select="mxf_muxer"
3300 nut_muxer_select="riffenc"
3301 nuv_demuxer_select="riffdec"
3302 oga_muxer_select="ogg_muxer"
3303 ogg_demuxer_select="dirac_parse"
3304 ogv_muxer_select="ogg_muxer"
3305 opus_muxer_select="ogg_muxer"
3306 psp_muxer_select="mov_muxer"
3307 rtp_demuxer_select="sdp_demuxer"
3308 rtp_muxer_select="golomb jpegtables"
3309 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3310 rtsp_demuxer_select="http_protocol rtpdec"
3311 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3312 sap_demuxer_select="sdp_demuxer"
3313 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3314 sdp_demuxer_select="rtpdec"
3315 smoothstreaming_muxer_select="ismv_muxer"
3316 spdif_demuxer_select="adts_header"
3317 spdif_muxer_select="adts_header"
3318 spx_muxer_select="ogg_muxer"
3319 swf_demuxer_suggest="zlib"
3320 tak_demuxer_select="tak_parser"
3321 tg2_muxer_select="mov_muxer"
3322 tgp_muxer_select="mov_muxer"
3323 vobsub_demuxer_select="mpegps_demuxer"
3324 w64_demuxer_select="wav_demuxer"
3325 w64_muxer_select="wav_muxer"
3326 wav_demuxer_select="riffdec"
3327 wav_muxer_select="riffenc"
3328 webm_muxer_select="iso_media riffenc"
3329 webm_dash_manifest_demuxer_select="matroska_demuxer"
3330 wtv_demuxer_select="mpegts_demuxer riffdec"
3331 wtv_muxer_select="mpegts_muxer riffenc"
3332 xmv_demuxer_select="riffdec"
3333 xwma_demuxer_select="riffdec"
3334
3335 # indevs / outdevs
3336 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3337 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3338 alsa_indev_deps="alsa"
3339 alsa_outdev_deps="alsa"
3340 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3341 avfoundation_indev_suggest="coregraphics applicationservices"
3342 avfoundation_indev_extralibs="-framework Foundation"
3343 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3344 caca_outdev_deps="libcaca"
3345 decklink_deps_any="libdl LoadLibrary"
3346 decklink_indev_deps="decklink threads"
3347 decklink_indev_extralibs="-lstdc++"
3348 decklink_outdev_deps="decklink threads"
3349 decklink_outdev_suggest="libklvanc"
3350 decklink_outdev_extralibs="-lstdc++"
3351 dshow_indev_deps="IBaseFilter"
3352 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3353 fbdev_indev_deps="linux_fb_h"
3354 fbdev_outdev_deps="linux_fb_h"
3355 gdigrab_indev_deps="CreateDIBSection"
3356 gdigrab_indev_extralibs="-lgdi32"
3357 gdigrab_indev_select="bmp_decoder"
3358 iec61883_indev_deps="libiec61883"
3359 jack_indev_deps="libjack"
3360 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3361 kmsgrab_indev_deps="libdrm"
3362 lavfi_indev_deps="avfilter"
3363 libcdio_indev_deps="libcdio"
3364 libdc1394_indev_deps="libdc1394"
3365 openal_indev_deps="openal"
3366 opengl_outdev_deps="opengl"
3367 opengl_outdev_suggest="sdl2"
3368 oss_indev_deps_any="sys_soundcard_h"
3369 oss_outdev_deps_any="sys_soundcard_h"
3370 pulse_indev_deps="libpulse"
3371 pulse_outdev_deps="libpulse"
3372 sdl2_outdev_deps="sdl2"
3373 sndio_indev_deps="sndio"
3374 sndio_outdev_deps="sndio"
3375 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3376 v4l2_indev_suggest="libv4l2"
3377 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3378 v4l2_outdev_suggest="libv4l2"
3379 vfwcap_indev_deps="vfw32 vfwcap_defines"
3380 xcbgrab_indev_deps="libxcb"
3381 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3382 xv_outdev_deps="xlib"
3383
3384 # protocols
3385 async_protocol_deps="threads"
3386 bluray_protocol_deps="libbluray"
3387 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3388 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3389 ffrtmpcrypt_protocol_select="tcp_protocol"
3390 ffrtmphttp_protocol_conflict="librtmp_protocol"
3391 ffrtmphttp_protocol_select="http_protocol"
3392 ftp_protocol_select="tcp_protocol"
3393 gopher_protocol_select="network"
3394 http_protocol_select="tcp_protocol"
3395 http_protocol_suggest="zlib"
3396 httpproxy_protocol_select="tcp_protocol"
3397 httpproxy_protocol_suggest="zlib"
3398 https_protocol_select="tls_protocol"
3399 https_protocol_suggest="zlib"
3400 icecast_protocol_select="http_protocol"
3401 mmsh_protocol_select="http_protocol"
3402 mmst_protocol_select="network"
3403 rtmp_protocol_conflict="librtmp_protocol"
3404 rtmp_protocol_select="tcp_protocol"
3405 rtmp_protocol_suggest="zlib"
3406 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3407 rtmpe_protocol_suggest="zlib"
3408 rtmps_protocol_conflict="librtmp_protocol"
3409 rtmps_protocol_select="tls_protocol"
3410 rtmps_protocol_suggest="zlib"
3411 rtmpt_protocol_select="ffrtmphttp_protocol"
3412 rtmpt_protocol_suggest="zlib"
3413 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3414 rtmpte_protocol_suggest="zlib"
3415 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3416 rtmpts_protocol_suggest="zlib"
3417 rtp_protocol_select="udp_protocol"
3418 schannel_conflict="openssl gnutls libtls mbedtls"
3419 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3420 sctp_protocol_select="network"
3421 securetransport_conflict="openssl gnutls libtls mbedtls"
3422 srtp_protocol_select="rtp_protocol srtp"
3423 tcp_protocol_select="network"
3424 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3425 tls_protocol_select="tcp_protocol"
3426 udp_protocol_select="network"
3427 udplite_protocol_select="network"
3428 unix_protocol_deps="sys_un_h"
3429 unix_protocol_select="network"
3430
3431 # external library protocols
3432 librtmp_protocol_deps="librtmp"
3433 librtmpe_protocol_deps="librtmp"
3434 librtmps_protocol_deps="librtmp"
3435 librtmpt_protocol_deps="librtmp"
3436 librtmpte_protocol_deps="librtmp"
3437 libsmbclient_protocol_deps="libsmbclient gplv3"
3438 libsrt_protocol_deps="libsrt"
3439 libsrt_protocol_select="network"
3440 libssh_protocol_deps="libssh"
3441 libtls_conflict="openssl gnutls mbedtls"
3442 libzmq_protocol_deps="libzmq"
3443 libzmq_protocol_select="network"
3444
3445 # filters
3446 afftdn_filter_deps="avcodec"
3447 afftdn_filter_select="fft"
3448 afftfilt_filter_deps="avcodec"
3449 afftfilt_filter_select="fft"
3450 afir_filter_deps="avcodec"
3451 afir_filter_select="rdft"
3452 amovie_filter_deps="avcodec avformat"
3453 aresample_filter_deps="swresample"
3454 asr_filter_deps="pocketsphinx"
3455 ass_filter_deps="libass"
3456 atempo_filter_deps="avcodec"
3457 atempo_filter_select="rdft"
3458 avgblur_opencl_filter_deps="opencl"
3459 azmq_filter_deps="libzmq"
3460 blackframe_filter_deps="gpl"
3461 bm3d_filter_deps="avcodec"
3462 bm3d_filter_select="dct"
3463 boxblur_filter_deps="gpl"
3464 boxblur_opencl_filter_deps="opencl gpl"
3465 bs2b_filter_deps="libbs2b"
3466 colorkey_opencl_filter_deps="opencl"
3467 colormatrix_filter_deps="gpl"
3468 convolution_opencl_filter_deps="opencl"
3469 convolve_filter_deps="avcodec"
3470 convolve_filter_select="fft"
3471 coreimage_filter_deps="coreimage appkit"
3472 coreimage_filter_extralibs="-framework OpenGL"
3473 coreimagesrc_filter_deps="coreimage appkit"
3474 coreimagesrc_filter_extralibs="-framework OpenGL"
3475 cover_rect_filter_deps="avcodec avformat gpl"
3476 cropdetect_filter_deps="gpl"
3477 deconvolve_filter_deps="avcodec"
3478 deconvolve_filter_select="fft"
3479 deinterlace_qsv_filter_deps="libmfx"
3480 deinterlace_vaapi_filter_deps="vaapi"
3481 delogo_filter_deps="gpl"
3482 denoise_vaapi_filter_deps="vaapi"
3483 derain_filter_select="dnn"
3484 deshake_filter_select="pixelutils"
3485 deshake_opencl_filter_deps="opencl"
3486 dilation_opencl_filter_deps="opencl"
3487 dnn_processing_filter_select="dnn"
3488 drawtext_filter_deps="libfreetype"
3489 drawtext_filter_suggest="libfontconfig libfribidi"
3490 elbg_filter_deps="avcodec"
3491 eq_filter_deps="gpl"
3492 erosion_opencl_filter_deps="opencl"
3493 fftfilt_filter_deps="avcodec"
3494 fftfilt_filter_select="rdft"
3495 fftdnoiz_filter_deps="avcodec"
3496 fftdnoiz_filter_select="fft"
3497 find_rect_filter_deps="avcodec avformat gpl"
3498 firequalizer_filter_deps="avcodec"
3499 firequalizer_filter_select="rdft"
3500 flite_filter_deps="libflite"
3501 framerate_filter_select="scene_sad"
3502 freezedetect_filter_select="scene_sad"
3503 frei0r_filter_deps="frei0r libdl"
3504 frei0r_src_filter_deps="frei0r libdl"
3505 fspp_filter_deps="gpl"
3506 geq_filter_deps="gpl"
3507 headphone_filter_select="fft"
3508 histeq_filter_deps="gpl"
3509 hqdn3d_filter_deps="gpl"
3510 interlace_filter_deps="gpl"
3511 kerndeint_filter_deps="gpl"
3512 ladspa_filter_deps="ladspa libdl"
3513 lensfun_filter_deps="liblensfun version3"
3514 lv2_filter_deps="lv2"
3515 mcdeint_filter_deps="avcodec gpl"
3516 movie_filter_deps="avcodec avformat"
3517 mpdecimate_filter_deps="gpl"
3518 mpdecimate_filter_select="pixelutils"
3519 minterpolate_filter_select="scene_sad"
3520 mptestsrc_filter_deps="gpl"
3521 negate_filter_deps="lut_filter"
3522 nlmeans_opencl_filter_deps="opencl"
3523 nnedi_filter_deps="gpl"
3524 ocr_filter_deps="libtesseract"
3525 ocv_filter_deps="libopencv"
3526 openclsrc_filter_deps="opencl"
3527 overlay_opencl_filter_deps="opencl"
3528 overlay_qsv_filter_deps="libmfx"
3529 overlay_qsv_filter_select="qsvvpp"
3530 owdenoise_filter_deps="gpl"
3531 pan_filter_deps="swresample"
3532 perspective_filter_deps="gpl"
3533 phase_filter_deps="gpl"
3534 pp7_filter_deps="gpl"
3535 pp_filter_deps="gpl postproc"
3536 prewitt_opencl_filter_deps="opencl"
3537 procamp_vaapi_filter_deps="vaapi"
3538 program_opencl_filter_deps="opencl"
3539 pullup_filter_deps="gpl"
3540 removelogo_filter_deps="avcodec avformat swscale"
3541 repeatfields_filter_deps="gpl"
3542 resample_filter_deps="avresample"
3543 roberts_opencl_filter_deps="opencl"
3544 rubberband_filter_deps="librubberband"
3545 sab_filter_deps="gpl swscale"
3546 scale2ref_filter_deps="swscale"
3547 scale_filter_deps="swscale"
3548 scale_qsv_filter_deps="libmfx"
3549 select_filter_select="scene_sad"
3550 sharpness_vaapi_filter_deps="vaapi"
3551 showcqt_filter_deps="avcodec avformat swscale"
3552 showcqt_filter_suggest="libfontconfig libfreetype"
3553 showcqt_filter_select="fft"
3554 showfreqs_filter_deps="avcodec"
3555 showfreqs_filter_select="fft"
3556 showspatial_filter_select="fft"
3557 showspectrum_filter_deps="avcodec"
3558 showspectrum_filter_select="fft"
3559 showspectrumpic_filter_deps="avcodec"
3560 showspectrumpic_filter_select="fft"
3561 signature_filter_deps="gpl avcodec avformat"
3562 sinc_filter_select="rdft"
3563 smartblur_filter_deps="gpl swscale"
3564 sobel_opencl_filter_deps="opencl"
3565 sofalizer_filter_deps="libmysofa avcodec"
3566 sofalizer_filter_select="fft"
3567 spectrumsynth_filter_deps="avcodec"
3568 spectrumsynth_filter_select="fft"
3569 spp_filter_deps="gpl avcodec"
3570 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3571 sr_filter_deps="avformat swscale"
3572 sr_filter_select="dnn"
3573 stereo3d_filter_deps="gpl"
3574 subtitles_filter_deps="avformat avcodec libass"
3575 super2xsai_filter_deps="gpl"
3576 pixfmts_super2xsai_test_deps="super2xsai_filter"
3577 superequalizer_filter_select="rdft"
3578 surround_filter_select="rdft"
3579 tinterlace_filter_deps="gpl"
3580 tinterlace_merge_test_deps="tinterlace_filter"
3581 tinterlace_pad_test_deps="tinterlace_filter"
3582 tonemap_filter_deps="const_nan"
3583 tonemap_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer_output_hdr_metadata"
3584 tonemap_opencl_filter_deps="opencl const_nan"
3585 transpose_opencl_filter_deps="opencl"
3586 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3587 unsharp_opencl_filter_deps="opencl"
3588 uspp_filter_deps="gpl avcodec"
3589 vaguedenoiser_filter_deps="gpl"
3590 vidstabdetect_filter_deps="libvidstab"
3591 vidstabtransform_filter_deps="libvidstab"
3592 libvmaf_filter_deps="libvmaf pthreads"
3593 zmq_filter_deps="libzmq"
3594 zoompan_filter_deps="swscale"
3595 zscale_filter_deps="libzimg const_nan"
3596 scale_vaapi_filter_deps="vaapi"
3597 vpp_qsv_filter_deps="libmfx"
3598 vpp_qsv_filter_select="qsvvpp"
3599 yadif_cuda_filter_deps="ffnvcodec"
3600 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3601
3602 # examples
3603 avio_dir_cmd_deps="avformat avutil"
3604 avio_reading_deps="avformat avcodec avutil"
3605 decode_audio_example_deps="avcodec avutil"
3606 decode_video_example_deps="avcodec avutil"
3607 demuxing_decoding_example_deps="avcodec avformat avutil"
3608 encode_audio_example_deps="avcodec avutil"
3609 encode_video_example_deps="avcodec avutil"
3610 extract_mvs_example_deps="avcodec avformat avutil"
3611 filter_audio_example_deps="avfilter avutil"
3612 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3613 filtering_video_example_deps="avfilter avcodec avformat avutil"
3614 http_multiclient_example_deps="avformat avutil fork"
3615 hw_decode_example_deps="avcodec avformat avutil"
3616 metadata_example_deps="avformat avutil"
3617 muxing_example_deps="avcodec avformat avutil swscale"
3618 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3619 remuxing_example_deps="avcodec avformat avutil"
3620 resampling_audio_example_deps="avutil swresample"
3621 scaling_video_example_deps="avutil swscale"
3622 transcode_aac_example_deps="avcodec avformat swresample"
3623 transcoding_example_deps="avfilter avcodec avformat avutil"
3624 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3625 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3626
3627 # EXTRALIBS_LIST
3628 cpu_init_extralibs="pthreads_extralibs"
3629 cws2fws_extralibs="zlib_extralibs"
3630
3631 # libraries, in any order
3632 avcodec_deps="avutil"
3633 avcodec_suggest="libm"
3634 avcodec_select="null_bsf"
3635 avdevice_deps="avformat avcodec avutil"
3636 avdevice_suggest="libm"
3637 avfilter_deps="avutil"
3638 avfilter_suggest="libm"
3639 avformat_deps="avcodec avutil"
3640 avformat_suggest="libm network zlib"
3641 avresample_deps="avutil"
3642 avresample_suggest="libm"
3643 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3644 postproc_deps="avutil gpl"
3645 postproc_suggest="libm"
3646 swresample_deps="avutil"
3647 swresample_suggest="libm libsoxr"
3648 swscale_deps="avutil"
3649 swscale_suggest="libm"
3650
3651 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3652 avfilter_extralibs="pthreads_extralibs"
3653 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3654
3655 # programs
3656 ffmpeg_deps="avcodec avfilter avformat"
3657 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3658                hflip_filter null_filter
3659                transpose_filter trim_filter vflip_filter"
3660 ffmpeg_suggest="ole32 psapi shell32"
3661 ffplay_deps="avcodec avformat swscale swresample sdl2"
3662 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3663 ffplay_suggest="shell32"
3664 ffprobe_deps="avcodec avformat"
3665 ffprobe_suggest="shell32"
3666
3667 # documentation
3668 podpages_deps="perl"
3669 manpages_deps="perl pod2man"
3670 htmlpages_deps="perl"
3671 htmlpages_deps_any="makeinfo_html texi2html"
3672 txtpages_deps="perl makeinfo"
3673 doc_deps_any="manpages htmlpages podpages txtpages"
3674
3675 # default parameters
3676
3677 logfile="ffbuild/config.log"
3678
3679 # installation paths
3680 prefix_default="/usr/local"
3681 bindir_default='${prefix}/bin'
3682 datadir_default='${prefix}/share/ffmpeg'
3683 docdir_default='${prefix}/share/doc/ffmpeg'
3684 incdir_default='${prefix}/include'
3685 libdir_default='${prefix}/lib'
3686 mandir_default='${prefix}/share/man'
3687
3688 # toolchain
3689 ar_default="ar"
3690 cc_default="gcc"
3691 cxx_default="g++"
3692 host_cc_default="gcc"
3693 doxygen_default="doxygen"
3694 install="install"
3695 ln_s_default="ln -s -f"
3696 nm_default="nm -g"
3697 pkg_config_default=pkg-config
3698 ranlib_default="ranlib"
3699 strip_default="strip"
3700 version_script='--version-script'
3701 objformat="elf32"
3702 x86asmexe_default="nasm"
3703 windres_default="windres"
3704 striptype="direct"
3705
3706 # OS
3707 target_os_default=$(tolower $(uname -s))
3708 host_os=$target_os_default
3709
3710 # machine
3711 if test "$target_os_default" = aix; then
3712     arch_default=$(uname -p)
3713     strip_default="strip -X32_64"
3714     nm_default="nm -g -X32_64"
3715 else
3716     arch_default=$(uname -m)
3717 fi
3718 cpu="generic"
3719 intrinsics="none"
3720
3721 # configurable options
3722 enable $PROGRAM_LIST
3723 enable $DOCUMENT_LIST
3724 enable $EXAMPLE_LIST
3725 enable $(filter_out avresample $LIBRARY_LIST)
3726 enable stripping
3727
3728 enable asm
3729 enable debug
3730 enable doc
3731 enable faan faandct faanidct
3732 enable large_tests
3733 enable optimizations
3734 enable runtime_cpudetect
3735 enable safe_bitstream_reader
3736 enable static
3737 enable swscale_alpha
3738 enable valgrind_backtrace
3739
3740 sws_max_filter_size_default=256
3741 set_default sws_max_filter_size
3742
3743 # internal components are enabled by default
3744 enable $EXTRALIBS_LIST
3745
3746 # Avoid external, non-system, libraries getting enabled by dependency resolution
3747 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3748
3749 # build settings
3750 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3751 LIBPREF="lib"
3752 LIBSUF=".a"
3753 FULLNAME='$(NAME)$(BUILDSUF)'
3754 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3755 SLIBPREF="lib"
3756 SLIBSUF=".so"
3757 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3758 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3759 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3760 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3761 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3762 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3763 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3764
3765 asflags_filter=echo
3766 cflags_filter=echo
3767 ldflags_filter=echo
3768
3769 AS_C='-c'
3770 AS_O='-o $@'
3771 CC_C='-c'
3772 CC_E='-E -o $@'
3773 CC_O='-o $@'
3774 CXX_C='-c'
3775 CXX_O='-o $@'
3776 OBJCC_C='-c'
3777 OBJCC_E='-E -o $@'
3778 OBJCC_O='-o $@'
3779 X86ASM_O='-o $@'
3780 LD_O='-o $@'
3781 LD_LIB='-l%'
3782 LD_PATH='-L'
3783 HOSTCC_C='-c'
3784 HOSTCC_E='-E -o $@'
3785 HOSTCC_O='-o $@'
3786 HOSTLD_O='-o $@'
3787 NVCC_C='-c'
3788 NVCC_O='-o $@'
3789
3790 host_extralibs='-lm'
3791 host_cflags_filter=echo
3792 host_ldflags_filter=echo
3793
3794 target_path='$(CURDIR)'
3795
3796 # since the object filename is not given with the -MM flag, the compiler
3797 # is only able to print the basename, and we must add the path ourselves
3798 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3799 DEPFLAGS='-MM'
3800
3801 mkdir -p ffbuild
3802
3803 # find source path
3804 if test -f configure; then
3805     source_path=.
3806 elif test -f src/configure; then
3807     source_path=src
3808 else
3809     source_path=$(cd $(dirname "$0"); pwd)
3810     case "$source_path" in
3811         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3812     esac
3813     test -e "$source_path/config.h" &&
3814         die "Out of tree builds are impossible with config.h in source dir."
3815 fi
3816
3817 for v in "$@"; do
3818     r=${v#*=}
3819     l=${v%"$r"}
3820     r=$(sh_quote "$r")
3821     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3822 done
3823
3824 find_things_extern(){
3825     thing=$1
3826     pattern=$2
3827     file=$source_path/$3
3828     out=${4:-$thing}
3829     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3830 }
3831
3832 find_filters_extern(){
3833     file=$source_path/$1
3834     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3835 }
3836
3837 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3838 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3839 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3840 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3841 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3842 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3843 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3844 CODEC_LIST="
3845     $ENCODER_LIST
3846     $DECODER_LIST
3847 "
3848 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3849 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3850 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3851 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3852
3853 AVCODEC_COMPONENTS_LIST="
3854     $BSF_LIST
3855     $DECODER_LIST
3856     $ENCODER_LIST
3857     $HWACCEL_LIST
3858     $PARSER_LIST
3859 "
3860
3861 AVDEVICE_COMPONENTS_LIST="
3862     $INDEV_LIST
3863     $OUTDEV_LIST
3864 "
3865
3866 AVFILTER_COMPONENTS_LIST="
3867     $FILTER_LIST
3868 "
3869
3870 AVFORMAT_COMPONENTS_LIST="
3871     $DEMUXER_LIST
3872     $MUXER_LIST
3873     $PROTOCOL_LIST
3874 "
3875
3876 ALL_COMPONENTS="
3877     $AVCODEC_COMPONENTS_LIST
3878     $AVDEVICE_COMPONENTS_LIST
3879     $AVFILTER_COMPONENTS_LIST
3880     $AVFORMAT_COMPONENTS_LIST
3881 "
3882
3883 for n in $COMPONENT_LIST; do
3884     v=$(toupper ${n%s})_LIST
3885     eval enable \$$v
3886     eval ${n}_if_any="\$$v"
3887 done
3888
3889 enable $ARCH_EXT_LIST
3890
3891 die_unknown(){
3892     echo "Unknown option \"$1\"."
3893     echo "See $0 --help for available options."
3894     exit 1
3895 }
3896
3897 print_in_columns() {
3898     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3899     {
3900         num_cols = width > col_width ? int(width / col_width) : 1;
3901         num_rows = int((NF + num_cols-1) / num_cols);
3902         y = x = 1;
3903         for (y = 1; y <= num_rows; y++) {
3904             i = y;
3905             for (x = 1; x <= num_cols; x++) {
3906                 if (i <= NF) {
3907                   line = sprintf("%s%-" col_width "s", line, $i);
3908                 }
3909                 i = i + num_rows;
3910             }
3911             print line; line = "";
3912         }
3913     }' | sed 's/ *$//'
3914 }
3915
3916 show_list() {
3917     suffix=_$1
3918     shift
3919     echo $* | sed s/$suffix//g | print_in_columns
3920     exit 0
3921 }
3922
3923 rand_list(){
3924     IFS=', '
3925     set -- $*
3926     unset IFS
3927     for thing; do
3928         comp=${thing%:*}
3929         prob=${thing#$comp}
3930         prob=${prob#:}
3931         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3932         echo "prob ${prob:-0.5}"
3933         printf '%s\n' $comp
3934     done
3935 }
3936
3937 do_random(){
3938     action=$1
3939     shift
3940     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3941     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3942 }
3943
3944 for opt do
3945     optval="${opt#*=}"
3946     case "$opt" in
3947         --extra-ldflags=*)
3948             add_ldflags $optval
3949         ;;
3950         --extra-ldexeflags=*)
3951             add_ldexeflags $optval
3952         ;;
3953         --extra-ldsoflags=*)
3954             add_ldsoflags $optval
3955         ;;
3956         --extra-ldlibflags=*)
3957             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3958                  "removed in the future. Use --extra-ldsoflags instead."
3959             add_ldsoflags $optval
3960         ;;
3961         --extra-libs=*)
3962             add_extralibs $optval
3963         ;;
3964         --disable-devices)
3965             disable $INDEV_LIST $OUTDEV_LIST
3966         ;;
3967         --enable-debug=*)
3968             debuglevel="$optval"
3969         ;;
3970         --disable-programs)
3971             disable $PROGRAM_LIST
3972         ;;
3973         --disable-everything)
3974             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3975         ;;
3976         --disable-all)
3977             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3978             disable $LIBRARY_LIST $PROGRAM_LIST doc
3979             enable avutil
3980         ;;
3981         --enable-random|--disable-random)
3982             action=${opt%%-random}
3983             do_random ${action#--} $COMPONENT_LIST
3984         ;;
3985         --enable-random=*|--disable-random=*)
3986             action=${opt%%-random=*}
3987             do_random ${action#--} $optval
3988         ;;
3989         --enable-sdl)
3990             enable sdl2
3991         ;;
3992         --enable-*=*|--disable-*=*)
3993             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3994             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3995             eval list=\$$(toupper $thing)_LIST
3996             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3997             list=$(filter "$name" $list)
3998             [ "$list" = "" ] && warn "Option $opt did not match anything"
3999             test $action = enable && warn_if_gets_disabled $list
4000             $action $list
4001         ;;
4002         --enable-yasm|--disable-yasm)
4003             warn "The ${opt} option is only provided for compatibility and will be\n"\
4004                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
4005             test $opt = --enable-yasm && x86asm=yes || x86asm=no
4006         ;;
4007         --yasmexe=*)
4008             warn "The --yasmexe option is only provided for compatibility and will be\n"\
4009                  "removed in the future. Use --x86asmexe instead."
4010             x86asmexe="$optval"
4011         ;;
4012         --enable-?*|--disable-?*)
4013             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
4014             if is_in $option $COMPONENT_LIST; then
4015                 test $action = disable && action=unset
4016                 eval $action \$$(toupper ${option%s})_LIST
4017             elif is_in $option $CMDLINE_SELECT; then
4018                 $action $option
4019             else
4020                 die_unknown $opt
4021             fi
4022         ;;
4023         --list-*)
4024             NAME="${opt#--list-}"
4025             is_in $NAME $COMPONENT_LIST || die_unknown $opt
4026             NAME=${NAME%s}
4027             eval show_list $NAME \$$(toupper $NAME)_LIST
4028         ;;
4029         --help|-h) show_help
4030         ;;
4031         --quiet|-q) quiet=yes
4032         ;;
4033         --fatal-warnings) enable fatal_warnings
4034         ;;
4035         --libfuzzer=*)
4036             libfuzzer_path="$optval"
4037         ;;
4038         *)
4039             optname="${opt%%=*}"
4040             optname="${optname#--}"
4041             optname=$(echo "$optname" | sed 's/-/_/g')
4042             if is_in $optname $CMDLINE_SET; then
4043                 eval $optname='$optval'
4044             elif is_in $optname $CMDLINE_APPEND; then
4045                 append $optname "$optval"
4046             else
4047                 die_unknown $opt
4048             fi
4049         ;;
4050     esac
4051 done
4052
4053 for e in $env; do
4054     eval "export $e"
4055 done
4056
4057 if disabled autodetect; then
4058
4059     # Unless iconv is explicitely disabled by the user, we still want to probe
4060     # for the iconv from the libc.
4061     disabled iconv || enable libc_iconv
4062
4063     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4064     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4065 fi
4066 # Mark specifically enabled, but normally autodetected libraries as requested.
4067 for lib in $AUTODETECT_LIBS; do
4068     enabled $lib && request $lib
4069 done
4070 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4071 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4072 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4073
4074 disabled logging && logfile=/dev/null
4075
4076 # command line configuration sanity checks
4077
4078 # we need to build at least one lib type
4079 if ! enabled_any static shared; then
4080     cat <<EOF
4081 At least one library type must be built.
4082 Specify --enable-static to build the static libraries or --enable-shared to
4083 build the shared libraries as well. To only build the shared libraries specify
4084 --disable-static in addition to --enable-shared.
4085 EOF
4086     exit 1
4087 fi
4088
4089 die_license_disabled() {
4090     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4091 }
4092
4093 die_license_disabled_gpl() {
4094     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4095 }
4096
4097 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4098 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4099
4100 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4101 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4102
4103 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4104
4105 if enabled nonfree; then
4106     license="nonfree and unredistributable"
4107 elif enabled gplv3; then
4108     license="GPL version 3 or later"
4109 elif enabled lgplv3; then
4110     license="LGPL version 3 or later"
4111 elif enabled gpl; then
4112     license="GPL version 2 or later"
4113 else
4114     license="LGPL version 2.1 or later"
4115 fi
4116
4117 enabled_all gnutls openssl &&
4118     die "GnuTLS and OpenSSL must not be enabled at the same time."
4119
4120 enabled_all gnutls mbedtls &&
4121     die "GnuTLS and mbedTLS must not be enabled at the same time."
4122
4123 enabled_all openssl mbedtls &&
4124     die "OpenSSL and mbedTLS must not be enabled at the same time."
4125
4126 # Disable all the library-specific components if the library itself
4127 # is disabled, see AVCODEC_LIST and following _LIST variables.
4128
4129 disable_components(){
4130     disabled ${1} && disable $(
4131         eval components="\$$(toupper ${1})_COMPONENTS"
4132         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4133     )
4134 }
4135
4136 map 'disable_components $v' $LIBRARY_LIST
4137
4138 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4139 set >> $logfile
4140
4141 test -n "$valgrind" && toolchain="valgrind-memcheck"
4142
4143 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4144     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4145     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4146 }
4147
4148 case "$toolchain" in
4149     *-asan)
4150         cc_default="${toolchain%-asan}"
4151         add_cflags  -fsanitize=address
4152         add_ldflags -fsanitize=address
4153     ;;
4154     *-msan)
4155         cc_default="${toolchain%-msan}"
4156         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4157         add_ldflags -fsanitize=memory
4158     ;;
4159     *-tsan)
4160         cc_default="${toolchain%-tsan}"
4161         add_cflags  -fsanitize=thread
4162         add_ldflags -fsanitize=thread
4163         case "$toolchain" in
4164             gcc-tsan)
4165                 add_cflags  -fPIC
4166                 add_ldflags -fPIC
4167                 ;;
4168         esac
4169     ;;
4170     *-usan)
4171         cc_default="${toolchain%-usan}"
4172         add_cflags  -fsanitize=undefined
4173         add_ldflags -fsanitize=undefined
4174     ;;
4175     valgrind-*)
4176         target_exec_default="valgrind"
4177         case "$toolchain" in
4178             valgrind-massif)
4179                 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"
4180                 ;;
4181             valgrind-memcheck)
4182                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4183                 ;;
4184         esac
4185     ;;
4186     msvc)
4187         # Check whether the current MSVC version needs the C99 converter.
4188         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4189         # support enough of C99 to build ffmpeg. Default to the new
4190         # behaviour if the regexp was unable to match anything, since this
4191         # successfully parses the version number of existing supported
4192         # versions that require the converter (MSVC 2010 and 2012).
4193         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4194         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4195             cc_default="cl.exe"
4196             cxx_default="cl.exe"
4197         else
4198             die "Unsupported MSVC version (2013 or newer required)"
4199         fi
4200         ld_default="$source_path/compat/windows/mslink"
4201         nm_default="dumpbin.exe -symbols"
4202         ar_default="lib.exe"
4203         case "$arch" in
4204         aarch64|arm64)
4205             as_default="armasm64.exe"
4206             ;;
4207         arm*)
4208             as_default="armasm.exe"
4209             ;;
4210         esac
4211         target_os_default="win32"
4212         # Use a relative path for TMPDIR. This makes sure all the
4213         # ffconf temp files are written with a relative path, avoiding
4214         # issues with msys/win32 path conversion for MSVC parameters
4215         # such as -Fo<file> or -out:<file>.
4216         TMPDIR=.
4217     ;;
4218     icl)
4219         cc_default="icl"
4220         ld_default="xilink"
4221         nm_default="dumpbin -symbols"
4222         ar_default="xilib"
4223         target_os_default="win32"
4224         TMPDIR=.
4225     ;;
4226     gcov)
4227         add_cflags  -fprofile-arcs -ftest-coverage
4228         add_ldflags -fprofile-arcs -ftest-coverage
4229     ;;
4230     llvm-cov)
4231         add_cflags -fprofile-arcs -ftest-coverage
4232         add_ldflags --coverage
4233     ;;
4234     hardened)
4235         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4236         add_cflags   -fno-strict-overflow -fstack-protector-all
4237         add_ldflags  -Wl,-z,relro -Wl,-z,now
4238         add_cflags   -fPIE
4239         add_ldexeflags -fPIE -pie
4240     ;;
4241     ?*)
4242         die "Unknown toolchain $toolchain"
4243     ;;
4244 esac
4245
4246 if test -n "$cross_prefix"; then
4247     test -n "$arch" && test -n "$target_os" ||
4248         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4249     enable cross_compile
4250 fi
4251
4252 set_default target_os
4253 if test "$target_os" = android; then
4254     cc_default="clang"
4255 fi
4256
4257 ar_default="${cross_prefix}${ar_default}"
4258 cc_default="${cross_prefix}${cc_default}"
4259 cxx_default="${cross_prefix}${cxx_default}"
4260 nm_default="${cross_prefix}${nm_default}"
4261 pkg_config_default="${cross_prefix}${pkg_config_default}"
4262 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4263     ranlib_default="${cross_prefix}${ranlib_default} -D"
4264 else
4265     ranlib_default="${cross_prefix}${ranlib_default}"
4266 fi
4267 strip_default="${cross_prefix}${strip_default}"
4268 windres_default="${cross_prefix}${windres_default}"
4269
4270 sysinclude_default="${sysroot}/usr/include"
4271
4272 if enabled cuda_sdk; then
4273     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4274     enable cuda_nvcc
4275 fi
4276
4277 if enabled cuda_nvcc; then
4278     nvcc_default="nvcc"
4279     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4280 else
4281     nvcc_default="clang"
4282     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4283     NVCC_C=""
4284 fi
4285
4286 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4287     target_exec x86asmexe nvcc
4288 enabled cross_compile || host_cc_default=$cc
4289 set_default host_cc
4290
4291 pkg_config_fail_message=""
4292 if ! $pkg_config --version >/dev/null 2>&1; then
4293     warn "$pkg_config not found, library detection may fail."
4294     pkg_config=false
4295 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4296     pkg_config_fail_message="
4297 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4298 fi
4299
4300 if test $doxygen != $doxygen_default && \
4301   ! $doxygen --version >/dev/null 2>&1; then
4302     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4303 fi
4304
4305 exesuf() {
4306     case $1 in
4307         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4308     esac
4309 }
4310
4311 EXESUF=$(exesuf $target_os)
4312 HOSTEXESUF=$(exesuf $host_os)
4313
4314 # set temporary file name
4315 : ${TMPDIR:=$TEMPDIR}
4316 : ${TMPDIR:=$TMP}
4317 : ${TMPDIR:=/tmp}
4318
4319 if [ -n "$tempprefix" ] ; then
4320     mktemp(){
4321         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4322         echo "$tmpname"
4323         mkdir "$tmpname"
4324     }
4325 elif ! test_cmd mktemp -u XXXXXX; then
4326     # simple replacement for missing mktemp
4327     # NOT SAFE FOR GENERAL USE
4328     mktemp(){
4329         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4330         echo "$tmpname"
4331         mkdir "$tmpname"
4332     }
4333 fi
4334
4335 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4336     die "Unable to create temporary directory in $TMPDIR."
4337
4338 tmpfile(){
4339     tmp="${FFTMPDIR}/test"$2
4340     (set -C; exec > $tmp) 2> /dev/null ||
4341         die "Unable to create temporary file in $FFTMPDIR."
4342     eval $1=$tmp
4343 }
4344
4345 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4346 trap 'exit 2' INT
4347
4348 tmpfile TMPASM .asm
4349 tmpfile TMPC   .c
4350 tmpfile TMPCPP .cpp
4351 tmpfile TMPE   $EXESUF
4352 tmpfile TMPH   .h
4353 tmpfile TMPM   .m
4354 tmpfile TMPCU  .cu
4355 tmpfile TMPO   .o
4356 tmpfile TMPS   .S
4357 tmpfile TMPSH  .sh
4358 tmpfile TMPV   .ver
4359
4360 unset -f mktemp
4361
4362 chmod +x $TMPE
4363
4364 # make sure we can execute files in $TMPDIR
4365 cat > $TMPSH 2>> $logfile <<EOF
4366 #! /bin/sh
4367 EOF
4368 chmod +x $TMPSH >> $logfile 2>&1
4369 if ! $TMPSH >> $logfile 2>&1; then
4370     cat <<EOF
4371 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4372 variable to another directory and make sure that it is not mounted noexec.
4373 EOF
4374     die "Sanity test failed."
4375 fi
4376
4377 armasm_flags(){
4378     for flag; do
4379         case $flag in
4380             # Filter out MSVC cl.exe options from cflags that shouldn't
4381             # be passed to gas-preprocessor
4382             -M[TD]*)                                            ;;
4383             *)                  echo $flag                      ;;
4384         esac
4385    done
4386 }
4387
4388 cparser_flags(){
4389     for flag; do
4390         case $flag in
4391             -Wno-switch)             echo -Wno-switch-enum ;;
4392             -Wno-format-zero-length) ;;
4393             -Wdisabled-optimization) ;;
4394             -Wno-pointer-sign)       echo -Wno-other ;;
4395             *)                       echo $flag ;;
4396         esac
4397     done
4398 }
4399
4400 msvc_common_flags(){
4401     for flag; do
4402         case $flag in
4403             # In addition to specifying certain flags under the compiler
4404             # specific filters, they must be specified here as well or else the
4405             # generic catch all at the bottom will print the original flag.
4406             -Wall)                ;;
4407             -Wextra)              ;;
4408             -std=c99)             ;;
4409             # Common flags
4410             -fomit-frame-pointer) ;;
4411             -g)                   echo -Z7 ;;
4412             -fno-math-errno)      ;;
4413             -fno-common)          ;;
4414             -fno-signed-zeros)    ;;
4415             -fPIC)                ;;
4416             -mthumb)              ;;
4417             -march=*)             ;;
4418             -lz)                  echo zlib.lib ;;
4419             -lx264)               echo libx264.lib ;;
4420             -lstdc++)             ;;
4421             -l*)                  echo ${flag#-l}.lib ;;
4422             -LARGEADDRESSAWARE)   echo $flag ;;
4423             -L*)                  echo -libpath:${flag#-L} ;;
4424             *)                    echo $flag ;;
4425         esac
4426     done
4427 }
4428
4429 msvc_flags(){
4430     msvc_common_flags "$@"
4431     for flag; do
4432         case $flag in
4433             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4434                                        -wd4554 ;;
4435             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4436                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4437                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4438                                        -wd4307 \
4439                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4440         esac
4441     done
4442 }
4443
4444 icl_flags(){
4445     msvc_common_flags "$@"
4446     for flag; do
4447         case $flag in
4448             # Despite what Intel's documentation says -Wall, which is supported
4449             # on Windows, does enable remarks so disable them here.
4450             -Wall)                echo $flag -Qdiag-disable:remark ;;
4451             -std=c99)             echo -Qstd=c99 ;;
4452             -flto)                echo -ipo ;;
4453         esac
4454     done
4455 }
4456
4457 icc_flags(){
4458     for flag; do
4459         case $flag in
4460             -flto)                echo -ipo ;;
4461             *)                    echo $flag ;;
4462         esac
4463     done
4464 }
4465
4466 suncc_flags(){
4467     for flag; do
4468         case $flag in
4469             -march=*|-mcpu=*)
4470                 case "${flag#*=}" in
4471                     native)                   echo -xtarget=native       ;;
4472                     v9|niagara)               echo -xarch=sparc          ;;
4473                     ultrasparc)               echo -xarch=sparcvis       ;;
4474                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4475                     i586|pentium)             echo -xchip=pentium        ;;
4476                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4477                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4478                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4479                     pentium4*)          echo -xtarget=pentium4           ;;
4480                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4481                     *-sse3)             echo -xarch=sse3                 ;;
4482                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4483                     bonnell)                   echo -xarch=ssse3         ;;
4484                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4485                     westmere)                  echo -xtarget=westmere    ;;
4486                     silvermont)                echo -xarch=sse4_2        ;;
4487                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4488                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4489                                                echo -xarch=avx           ;;
4490                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4491                     btver1)                    echo -xarch=amdsse4a      ;;
4492                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4493                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4494                     k8|opteron|athlon64|athlon-fx)
4495                                                echo -xarch=sse2a         ;;
4496                     athlon*)                   echo -xarch=pentium_proa  ;;
4497                 esac
4498                 ;;
4499             -std=c99)             echo -xc99              ;;
4500             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4501             -fPIC)                echo -KPIC -xcode=pic32 ;;
4502             -W*,*)                echo $flag              ;;
4503             -f*-*|-W*|-mimpure-text)                      ;;
4504             -shared)              echo -G                 ;;
4505             *)                    echo $flag              ;;
4506         esac
4507     done
4508 }
4509
4510 probe_cc(){
4511     pfx=$1
4512     _cc=$2
4513     first=$3
4514
4515     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4516     unset _ld_o _ldflags _ld_lib _ld_path
4517     unset _depflags _DEPCMD _DEPFLAGS
4518     _flags_filter=echo
4519
4520     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4521         true # no-op to avoid reading stdin in following checks
4522     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4523         _type=llvm_gcc
4524         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4525         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4526         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4527         _cflags_speed='-O3'
4528         _cflags_size='-Os'
4529     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4530         _type=gcc
4531         gcc_version=$($_cc --version | head -n1)
4532         gcc_basever=$($_cc -dumpversion)
4533         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4534         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4535         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4536         case $gcc_basever in
4537             2) ;;
4538             2.*) ;;
4539             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4540         esac
4541         if [ "$first" = true ]; then
4542             case $gcc_basever in
4543                 4.2*)
4544                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4545             esac
4546         fi
4547         _cflags_speed='-O3'
4548         _cflags_size='-Os'
4549     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4550         _type=icc
4551         _ident=$($_cc --version | head -n1)
4552         _depflags='-MMD'
4553         _cflags_speed='-O3'
4554         _cflags_size='-Os'
4555         _cflags_noopt='-O1'
4556         _flags_filter=icc_flags
4557     elif $_cc -v 2>&1 | grep -q xlc; then
4558         _type=xlc
4559         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4560         _cflags_speed='-O5'
4561         _cflags_size='-O5 -qcompact'
4562     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4563         test -d "$sysroot" || die "No valid sysroot specified."
4564         _type=armcc
4565         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4566         armcc_conf="$PWD/armcc.conf"
4567         $_cc --arm_linux_configure                 \
4568              --arm_linux_config_file="$armcc_conf" \
4569              --configure_sysroot="$sysroot"        \
4570              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4571              die "Error creating armcc configuration file."
4572         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4573         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4574         as_default="${cross_prefix}gcc"
4575         _depflags='-MMD'
4576         _cflags_speed='-O3'
4577         _cflags_size='-Os'
4578     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4579         _type=clang
4580         _ident=$($_cc --version 2>/dev/null | head -n1)
4581         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4582         _cflags_speed='-O3'
4583         _cflags_size='-Oz'
4584     elif $_cc -V 2>&1 | grep -q Sun; then
4585         _type=suncc
4586         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4587         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4588         _DEPFLAGS='-xM1 -xc99'
4589         _ldflags='-std=c99'
4590         _cflags_speed='-O5'
4591         _cflags_size='-O5 -xspace'
4592         _flags_filter=suncc_flags
4593     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4594         _type=pathscale
4595         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4596         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4597         _cflags_speed='-O2'
4598         _cflags_size='-Os'
4599         _flags_filter='filter_out -Wdisabled-optimization'
4600     elif $_cc -v 2>&1 | grep -q Open64; then
4601         _type=open64
4602         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4603         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4604         _cflags_speed='-O2'
4605         _cflags_size='-Os'
4606         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4607     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4608         _type=armasm
4609         _ident=$($_cc | head -n1)
4610         # 4509: "This form of conditional instruction is deprecated"
4611         _flags="-nologo -ignore 4509"
4612         _flags_filter=armasm_flags
4613     elif $_cc 2>&1 | grep -q Intel; then
4614         _type=icl
4615         _ident=$($_cc 2>&1 | head -n1)
4616         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4617         # Not only is O3 broken on 13.x+ but it is slower on all previous
4618         # versions (tested) as well.
4619         _cflags_speed="-O2"
4620         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4621         if $_cc 2>&1 | grep -q Linker; then
4622             _ld_o='-out:$@'
4623         else
4624             _ld_o='-Fe$@'
4625         fi
4626         _cc_o='-Fo$@'
4627         _cc_e='-P'
4628         _flags_filter=icl_flags
4629         _ld_lib='lib%.a'
4630         _ld_path='-libpath:'
4631         # -Qdiag-error to make icl error when seeing certain unknown arguments
4632         _flags='-nologo -Qdiag-error:4044,10157'
4633         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4634         # with MSVC which enables it by default.
4635         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4636         disable stripping
4637     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4638         # lld can emulate multiple different linkers; in ms link.exe mode,
4639         # the -? parameter gives the help output which contains an identifyable
4640         # string, while it gives an error in other modes.
4641         _type=lld-link
4642         # The link.exe mode doesn't have a switch for getting the version,
4643         # but we can force it back to gnu mode and get the version from there.
4644         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4645         _ld_o='-out:$@'
4646         _flags_filter=msvc_flags
4647         _ld_lib='lib%.a'
4648         _ld_path='-libpath:'
4649     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4650         _type=msvc
4651         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4652         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4653         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4654         _cflags_speed="-O2"
4655         _cflags_size="-O1"
4656         _cflags_noopt="-O1"
4657         if $_cc -nologo- 2>&1 | grep -q Linker; then
4658             _ld_o='-out:$@'
4659         else
4660             _ld_o='-Fe$@'
4661         fi
4662         _cc_o='-Fo$@'
4663         _cc_e='-P -Fi$@'
4664         _flags_filter=msvc_flags
4665         _ld_lib='lib%.a'
4666         _ld_path='-libpath:'
4667         _flags='-nologo'
4668         disable stripping
4669     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4670         _type=cparser
4671         _ident=$($_cc --version | head -n1)
4672         _depflags='-MMD'
4673         _cflags_speed='-O4'
4674         _cflags_size='-O2'
4675         _flags_filter=cparser_flags
4676     fi
4677
4678     eval ${pfx}_type=\$_type
4679     eval ${pfx}_ident=\$_ident
4680 }
4681
4682 set_ccvars(){
4683     eval ${1}_C=\${_cc_c-\${${1}_C}}
4684     eval ${1}_E=\${_cc_e-\${${1}_E}}
4685     eval ${1}_O=\${_cc_o-\${${1}_O}}
4686
4687     if [ -n "$_depflags" ]; then
4688         eval ${1}_DEPFLAGS=\$_depflags
4689     else
4690         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4691         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4692         eval DEP${1}FLAGS=\$_flags
4693     fi
4694 }
4695
4696 probe_cc cc "$cc" "true"
4697 cflags_filter=$_flags_filter
4698 cflags_speed=$_cflags_speed
4699 cflags_size=$_cflags_size
4700 cflags_noopt=$_cflags_noopt
4701 add_cflags $_flags $_cflags
4702 cc_ldflags=$_ldflags
4703 set_ccvars CC
4704 set_ccvars CXX
4705
4706 probe_cc hostcc "$host_cc"
4707 host_cflags_filter=$_flags_filter
4708 host_cflags_speed=$_cflags_speed
4709 add_host_cflags  $_flags $_cflags
4710 set_ccvars HOSTCC
4711
4712 test -n "$cc_type" && enable $cc_type ||
4713     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4714
4715 : ${as_default:=$cc}
4716 : ${objcc_default:=$cc}
4717 : ${dep_cc_default:=$cc}
4718 : ${ld_default:=$cc}
4719 : ${host_ld_default:=$host_cc}
4720 set_default ar as objcc dep_cc ld ln_s host_ld windres
4721
4722 probe_cc as "$as"
4723 asflags_filter=$_flags_filter
4724 add_asflags $_flags $_cflags
4725 set_ccvars AS
4726
4727 probe_cc objcc "$objcc"
4728 objcflags_filter=$_flags_filter
4729 add_objcflags $_flags $_cflags
4730 set_ccvars OBJC
4731
4732 probe_cc ld "$ld"
4733 ldflags_filter=$_flags_filter
4734 add_ldflags $_flags $_ldflags
4735 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4736 LD_O=${_ld_o-$LD_O}
4737 LD_LIB=${_ld_lib-$LD_LIB}
4738 LD_PATH=${_ld_path-$LD_PATH}
4739
4740 probe_cc hostld "$host_ld"
4741 host_ldflags_filter=$_flags_filter
4742 add_host_ldflags $_flags $_ldflags
4743 HOSTLD_O=${_ld_o-$HOSTLD_O}
4744
4745 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4746     probe_cc depcc "$dep_cc"
4747     CCDEP=${_DEPCMD:-$DEPCMD}
4748     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4749     DEPCCFLAGS=$_flags
4750 fi
4751
4752 if $ar 2>&1 | grep -q Microsoft; then
4753     arflags="-nologo"
4754     ar_o='-out:$@'
4755 elif $ar 2>&1 | grep -q "\[D\] "; then
4756     arflags="rcD"
4757     ar_o='$@'
4758 else
4759     arflags="rc"
4760     ar_o='$@'
4761 fi
4762
4763 add_cflags $extra_cflags
4764 add_cxxflags $extra_cxxflags
4765 add_objcflags $extra_objcflags
4766 add_asflags $extra_cflags
4767
4768 if test -n "$sysroot"; then
4769     case "$cc_type" in
4770         gcc|llvm_gcc|clang)
4771             add_cppflags --sysroot="$sysroot"
4772             add_ldflags --sysroot="$sysroot"
4773         ;;
4774     esac
4775 fi
4776
4777 if test "$cpu" = host; then
4778     enabled cross_compile &&
4779         die "--cpu=host makes no sense when cross-compiling."
4780
4781     case "$cc_type" in
4782         gcc|llvm_gcc)
4783             check_native(){
4784                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4785                 sed -n "/cc1.*$1=/{
4786                             s/.*$1=\\([^ ]*\\).*/\\1/
4787                             p
4788                             q
4789                         }" $TMPE
4790             }
4791             cpu=$(check_native -march || check_native -mcpu)
4792         ;;
4793         clang)
4794             check_native(){
4795                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4796                 sed -n "/cc1.*-target-cpu /{
4797                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4798                             p
4799                             q
4800                         }" $TMPE
4801             }
4802             cpu=$(check_native -march)
4803         ;;
4804     esac
4805
4806     test "${cpu:-host}" = host &&
4807         die "--cpu=host not supported with compiler $cc"
4808 fi
4809
4810 # Deal with common $arch aliases
4811 case "$arch" in
4812     aarch64|arm64)
4813         arch="aarch64"
4814     ;;
4815     arm*|iPad*|iPhone*)
4816         arch="arm"
4817     ;;
4818     mips*|IP*)
4819         case "$arch" in
4820         *el)
4821             add_cppflags -EL
4822             add_ldflags -EL
4823         ;;
4824         *eb)
4825             add_cppflags -EB
4826             add_ldflags -EB
4827         ;;
4828         esac
4829         arch="mips"
4830     ;;
4831     parisc*|hppa*)
4832         arch="parisc"
4833     ;;
4834     "Power Macintosh"|ppc*|powerpc*)
4835         arch="ppc"
4836     ;;
4837     s390|s390x)
4838         arch="s390"
4839     ;;
4840     sh4|sh)
4841         arch="sh4"
4842     ;;
4843     sun4*|sparc*)
4844         arch="sparc"
4845     ;;
4846     tilegx|tile-gx)
4847         arch="tilegx"
4848     ;;
4849     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4850         arch="x86"
4851     ;;
4852 esac
4853
4854 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4855 enable $arch
4856
4857 # Add processor-specific flags
4858 if enabled aarch64; then
4859
4860     case $cpu in
4861         armv*)
4862             cpuflags="-march=$cpu"
4863         ;;
4864         *)
4865             cpuflags="-mcpu=$cpu"
4866         ;;
4867     esac
4868
4869 elif enabled alpha; then
4870
4871     cpuflags="-mcpu=$cpu"
4872
4873 elif enabled arm; then
4874
4875     check_arm_arch() {
4876         test_cpp_condition stddef.h \
4877             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4878             $cpuflags
4879     }
4880
4881     probe_arm_arch() {
4882         if   check_arm_arch 4;        then echo armv4
4883         elif check_arm_arch 4T;       then echo armv4t
4884         elif check_arm_arch 5;        then echo armv5
4885         elif check_arm_arch 5E;       then echo armv5e
4886         elif check_arm_arch 5T;       then echo armv5t
4887         elif check_arm_arch 5TE;      then echo armv5te
4888         elif check_arm_arch 5TEJ;     then echo armv5te
4889         elif check_arm_arch 6;        then echo armv6
4890         elif check_arm_arch 6J;       then echo armv6j
4891         elif check_arm_arch 6K;       then echo armv6k
4892         elif check_arm_arch 6Z;       then echo armv6z
4893         elif check_arm_arch 6KZ;      then echo armv6zk
4894         elif check_arm_arch 6ZK;      then echo armv6zk
4895         elif check_arm_arch 6T2;      then echo armv6t2
4896         elif check_arm_arch 7;        then echo armv7
4897         elif check_arm_arch 7A  7_A;  then echo armv7-a
4898         elif check_arm_arch 7S;       then echo armv7-a
4899         elif check_arm_arch 7R  7_R;  then echo armv7-r
4900         elif check_arm_arch 7M  7_M;  then echo armv7-m
4901         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4902         elif check_arm_arch 8A  8_A;  then echo armv8-a
4903         fi
4904     }
4905
4906     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4907
4908     case $cpu in
4909         armv*)
4910             cpuflags="-march=$cpu"
4911             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4912         ;;
4913         *)
4914             cpuflags="-mcpu=$cpu"
4915             case $cpu in
4916                 cortex-a*)                               subarch=armv7a  ;;
4917                 cortex-r*)                               subarch=armv7r  ;;
4918                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4919                 arm11*)                                  subarch=armv6   ;;
4920                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4921                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4922                 *)                             subarch=$(probe_arm_arch) ;;
4923             esac
4924         ;;
4925     esac
4926
4927     case "$subarch" in
4928         armv5t*)    enable fast_clz                ;;
4929         armv[6-8]*)
4930             enable fast_clz
4931             disabled fast_unaligned || enable fast_unaligned
4932             ;;
4933     esac
4934
4935 elif enabled avr32; then
4936
4937     case $cpu in
4938         ap7[02]0[0-2])
4939             subarch="avr32_ap"
4940             cpuflags="-mpart=$cpu"
4941         ;;
4942         ap)
4943             subarch="avr32_ap"
4944             cpuflags="-march=$cpu"
4945         ;;
4946         uc3[ab]*)
4947             subarch="avr32_uc"
4948             cpuflags="-mcpu=$cpu"
4949         ;;
4950         uc)
4951             subarch="avr32_uc"
4952             cpuflags="-march=$cpu"
4953         ;;
4954     esac
4955
4956 elif enabled bfin; then
4957
4958     cpuflags="-mcpu=$cpu"
4959
4960 elif enabled mips; then
4961
4962     cpuflags="-march=$cpu"
4963
4964     if [ "$cpu" != "generic" ]; then
4965         disable mips32r2
4966         disable mips32r5
4967         disable mips64r2
4968         disable mips32r6
4969         disable mips64r6
4970         disable loongson2
4971         disable loongson3
4972
4973         case $cpu in
4974             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4975                 enable mips32r2
4976                 disable msa
4977             ;;
4978             p5600|i6400|p6600)
4979                 disable mipsdsp
4980                 disable mipsdspr2
4981             ;;
4982             loongson*)
4983                 enable loongson2
4984                 enable loongson3
4985                 enable local_aligned
4986                 enable simd_align_16
4987                 enable fast_64bit
4988                 enable fast_clz
4989                 enable fast_cmov
4990                 enable fast_unaligned
4991                 disable aligned_stack
4992                 disable mipsdsp
4993                 disable mipsdspr2
4994                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4995                 if [ $cc == gcc ]; then
4996                     gcc_version=$(gcc -dumpversion)
4997                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4998                         expensive_optimization_flag=""
4999                     else
5000                         expensive_optimization_flag="-fno-expensive-optimizations"
5001                     fi
5002                 fi
5003                 case $cpu in
5004                     loongson3*)
5005                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
5006                     ;;
5007                     loongson2e)
5008                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
5009                     ;;
5010                     loongson2f)
5011                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
5012                     ;;
5013                 esac
5014             ;;
5015             *)
5016                 # Unknown CPU. Disable everything.
5017                 warn "unknown CPU. Disabling all MIPS optimizations."
5018                 disable mipsfpu
5019                 disable mipsdsp
5020                 disable mipsdspr2
5021                 disable msa
5022                 disable mmi
5023             ;;
5024         esac
5025
5026         case $cpu in
5027             24kc)
5028                 disable mipsfpu
5029                 disable mipsdsp
5030                 disable mipsdspr2
5031             ;;
5032             24kf*)
5033                 disable mipsdsp
5034                 disable mipsdspr2
5035             ;;
5036             24kec|34kc|1004kc)
5037                 disable mipsfpu
5038                 disable mipsdspr2
5039             ;;
5040             24kef*|34kf*|1004kf*)
5041                 disable mipsdspr2
5042             ;;
5043             74kc)
5044                 disable mipsfpu
5045             ;;
5046             p5600)
5047                 enable mips32r5
5048                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
5049             ;;
5050             i6400)
5051                 enable mips64r6
5052                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5053             ;;
5054             p6600)
5055                 enable mips64r6
5056                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5057             ;;
5058         esac
5059     else
5060         # We do not disable anything. Is up to the user to disable the unwanted features.
5061         warn 'generic cpu selected'
5062     fi
5063
5064 elif enabled ppc; then
5065
5066     disable ldbrx
5067
5068     case $(tolower $cpu) in
5069         601|ppc601|powerpc601)
5070             cpuflags="-mcpu=601"
5071             disable altivec
5072         ;;
5073         603*|ppc603*|powerpc603*)
5074             cpuflags="-mcpu=603"
5075             disable altivec
5076         ;;
5077         604*|ppc604*|powerpc604*)
5078             cpuflags="-mcpu=604"
5079             disable altivec
5080         ;;
5081         g3|75*|ppc75*|powerpc75*)
5082             cpuflags="-mcpu=750"
5083             disable altivec
5084         ;;
5085         g4|745*|ppc745*|powerpc745*)
5086             cpuflags="-mcpu=7450"
5087             disable vsx
5088         ;;
5089         74*|ppc74*|powerpc74*)
5090             cpuflags="-mcpu=7400"
5091             disable vsx
5092         ;;
5093         g5|970|ppc970|powerpc970)
5094             cpuflags="-mcpu=970"
5095             disable vsx
5096         ;;
5097         power[3-6]*)
5098             cpuflags="-mcpu=$cpu"
5099             disable vsx
5100         ;;
5101         power[7-8]*)
5102             cpuflags="-mcpu=$cpu"
5103         ;;
5104         cell)
5105             cpuflags="-mcpu=cell"
5106             enable ldbrx
5107             disable vsx
5108         ;;
5109         e500mc)
5110             cpuflags="-mcpu=e500mc"
5111             disable altivec
5112         ;;
5113         e500v2)
5114             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5115             disable altivec
5116             disable dcbzl
5117         ;;
5118         e500)
5119             cpuflags="-mcpu=8540 -mhard-float"
5120             disable altivec
5121             disable dcbzl
5122         ;;
5123     esac
5124
5125 elif enabled sparc; then
5126
5127     case $cpu in
5128         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5129             cpuflags="-mcpu=$cpu"
5130         ;;
5131         ultrasparc*|niagara[234])
5132             cpuflags="-mcpu=$cpu"
5133         ;;
5134     esac
5135
5136 elif enabled x86; then
5137
5138     case $cpu in
5139         i[345]86|pentium)
5140             cpuflags="-march=$cpu"
5141             disable i686
5142             disable mmx
5143         ;;
5144         # targets that do NOT support nopl and conditional mov (cmov)
5145         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5146             cpuflags="-march=$cpu"
5147             disable i686
5148         ;;
5149         # targets that do support nopl and conditional mov (cmov)
5150         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5151         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5152         |amdfam10|barcelona|b[dt]ver*|znver*)
5153             cpuflags="-march=$cpu"
5154             enable i686
5155             enable fast_cmov
5156         ;;
5157         # targets that do support conditional mov but on which it's slow
5158         pentium4|pentium4m|prescott|nocona)
5159             cpuflags="-march=$cpu"
5160             enable i686
5161             disable fast_cmov
5162         ;;
5163     esac
5164
5165 fi
5166
5167 if [ "$cpu" != generic ]; then
5168     add_cflags  $cpuflags
5169     add_asflags $cpuflags
5170     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5171 fi
5172
5173 # compiler sanity check
5174 test_exec <<EOF
5175 int main(void){ return 0; }
5176 EOF
5177 if test "$?" != 0; then
5178     echo "$cc is unable to create an executable file."
5179     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5180         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5181         echo "Only do this if you know what cross compiling means."
5182     fi
5183     die "C compiler test failed."
5184 fi
5185
5186 add_cppflags -D_ISOC99_SOURCE
5187 add_cxxflags -D__STDC_CONSTANT_MACROS
5188 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5189
5190 # some compilers silently accept -std=c11, so we also need to check that the
5191 # version macro is defined properly
5192 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5193     add_cflags -std=c11 ||
5194     check_cflags -std=c99
5195
5196 check_cppflags -D_FILE_OFFSET_BITS=64
5197 check_cppflags -D_LARGEFILE_SOURCE
5198
5199 add_host_cppflags -D_ISOC99_SOURCE
5200 check_host_cflags -std=c99
5201 check_host_cflags -Wall
5202 check_host_cflags $host_cflags_speed
5203
5204 check_64bit(){
5205     arch32=$1
5206     arch64=$2
5207     expr=${3:-'sizeof(void *) > 4'}
5208     test_code cc "" "int test[2*($expr) - 1]" &&
5209         subarch=$arch64 || subarch=$arch32
5210     enable $subarch
5211 }
5212
5213 case "$arch" in
5214     aarch64|alpha|ia64)
5215         enabled shared && enable_weak pic
5216     ;;
5217     mips)
5218         check_64bit mips mips64 '_MIPS_SIM > 1'
5219         enabled shared && enable_weak pic
5220     ;;
5221     parisc)
5222         check_64bit parisc parisc64
5223         enabled shared && enable_weak pic
5224     ;;
5225     ppc)
5226         check_64bit ppc ppc64
5227         enabled shared && enable_weak pic
5228     ;;
5229     s390)
5230         check_64bit s390 s390x
5231         enabled shared && enable_weak pic
5232     ;;
5233     sparc)
5234         check_64bit sparc sparc64
5235         enabled shared && enable_weak pic
5236     ;;
5237     x86)
5238         check_64bit x86_32 x86_64
5239         # Treat x32 as x64 for now. Note it also needs pic if shared
5240         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5241             subarch=x86_64 && enable x86_64 && disable x86_32
5242         if enabled x86_64; then
5243             enabled shared && enable_weak pic
5244             objformat=elf64
5245         fi
5246     ;;
5247 esac
5248
5249 # OS specific
5250 case $target_os in
5251     aix)
5252         SHFLAGS=-shared
5253         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5254         enabled shared && add_ldflags -Wl,-brtl
5255         arflags='-Xany -r -c'
5256         striptype=""
5257         ;;
5258     android)
5259         disable symver
5260         enable section_data_rel_ro
5261         add_cflags -fPIE
5262         add_ldexeflags -fPIE -pie
5263         SLIB_INSTALL_NAME='$(SLIBNAME)'
5264         SLIB_INSTALL_LINKS=
5265         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5266         ;;
5267     haiku)
5268         prefix_default="/boot/common"
5269         network_extralibs="-lnetwork"
5270         host_extralibs=
5271         ;;
5272     sunos)
5273         SHFLAGS='-shared -Wl,-h,$$(@F)'
5274         enabled x86 && append SHFLAGS -mimpure-text
5275         network_extralibs="-lsocket -lnsl"
5276         add_cppflags -D__EXTENSIONS__
5277         # When using suncc to build, the Solaris linker will mark
5278         # an executable with each instruction set encountered by
5279         # the Solaris assembler.  As our libraries contain their own
5280         # guards for processor-specific code, instead suppress
5281         # generation of the HWCAPS ELF section on Solaris x86 only.
5282         enabled_all suncc x86 &&
5283             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5284             add_ldflags -Wl,-M,mapfile
5285         nm_default='nm -P -g'
5286         striptype=""
5287         version_script='-M'
5288         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5289         ;;
5290     netbsd)
5291         disable symver
5292         oss_indev_extralibs="-lossaudio"
5293         oss_outdev_extralibs="-lossaudio"
5294         enabled gcc || check_ldflags -Wl,-zmuldefs
5295         ;;
5296     openbsd|bitrig)
5297         disable symver
5298         striptype=""
5299         SHFLAGS='-shared'
5300         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5301         SLIB_INSTALL_LINKS=
5302         oss_indev_extralibs="-lossaudio"
5303         oss_outdev_extralibs="-lossaudio"
5304         ;;
5305     dragonfly)
5306         disable symver
5307         ;;
5308     freebsd)
5309         ;;
5310     bsd/os)
5311         add_extralibs -lpoll -lgnugetopt
5312         strip="strip -d"
5313         ;;
5314     darwin)
5315         enabled ppc && add_asflags -force_cpusubtype_ALL
5316         install_name_dir_default='$(SHLIBDIR)'
5317         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5318         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5319         strip="${strip} -x"
5320         add_ldflags -Wl,-dynamic,-search_paths_first
5321         check_cflags -Werror=partial-availability
5322         SLIBSUF=".dylib"
5323         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5324         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5325         enabled x86_64 && objformat="macho64" || objformat="macho32"
5326         enabled_any pic shared x86_64 ||
5327             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5328         check_headers dispatch/dispatch.h &&
5329             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5330         if test -n "$sysroot"; then
5331             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5332             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5333         fi
5334         version_script='-exported_symbols_list'
5335         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5336         ;;
5337     msys*)
5338         die "Native MSYS builds are discouraged, please use the MINGW environment."
5339         ;;
5340     mingw32*|mingw64*)
5341         target_os=mingw32
5342         LIBTARGET=i386
5343         if enabled x86_64; then
5344             LIBTARGET="i386:x86-64"
5345         elif enabled arm; then
5346             LIBTARGET="arm"
5347         elif enabled aarch64; then
5348             LIBTARGET="arm64"
5349         fi
5350         if enabled shared; then
5351             # Cannot build both shared and static libs when using dllimport.
5352             disable static
5353         fi
5354         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5355         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5356         shlibdir_default="$bindir_default"
5357         SLIBPREF=""
5358         SLIBSUF=".dll"
5359         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5360         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5361         if test_cmd lib.exe -list; then
5362             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5363             if enabled x86_64; then
5364                 LIBTARGET=x64
5365             fi
5366         else
5367             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5368         fi
5369         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5370         SLIB_INSTALL_LINKS=
5371         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5372         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5373         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5374         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5375         enabled x86_64 && objformat="win64" || objformat="win32"
5376         dlltool="${cross_prefix}dlltool"
5377         ranlib=:
5378         enable dos_paths
5379         check_ldflags -Wl,--nxcompat,--dynamicbase
5380         # Lets work around some stupidity in binutils.
5381         # ld will strip relocations from executables even though we need them
5382         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5383         # however ld then forgets what the entry point should be (oops) so we
5384         # have to manually (re)set it.
5385         if enabled x86_32; then
5386             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5387         elif enabled x86_64; then
5388             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5389             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5390             # Set image base >4GB for extra entropy with HEASLR
5391             add_ldexeflags -Wl,--image-base,0x140000000
5392             append SHFLAGS -Wl,--image-base,0x180000000
5393         fi
5394         ;;
5395     win32|win64)
5396         disable symver
5397         if enabled shared; then
5398             # Link to the import library instead of the normal static library
5399             # for shared libs.
5400             LD_LIB='%.lib'
5401             # Cannot build both shared and static libs with MSVC or icl.
5402             disable static
5403         fi
5404         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5405         shlibdir_default="$bindir_default"
5406         SLIBPREF=""
5407         SLIBSUF=".dll"
5408         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5409         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5410         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5411         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5412         SLIB_INSTALL_LINKS=
5413         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5414         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5415         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5416         enabled x86_64 && objformat="win64" || objformat="win32"
5417         ranlib=:
5418         enable dos_paths
5419         ;;
5420     cygwin*)
5421         target_os=cygwin
5422         shlibdir_default="$bindir_default"
5423         SLIBPREF="cyg"
5424         SLIBSUF=".dll"
5425         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5426         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5427         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5428         SLIB_INSTALL_LINKS=
5429         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5430         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5431         enabled x86_64 && objformat="win64" || objformat="win32"
5432         enable dos_paths
5433         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5434         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5435         ;;
5436     *-dos|freedos|opendos)
5437         network_extralibs="-lsocket"
5438         objformat="coff"
5439         enable dos_paths
5440         ;;
5441     linux)
5442         enable section_data_rel_ro
5443         enabled_any arm aarch64 && enable_weak linux_perf
5444         ;;
5445     irix*)
5446         target_os=irix
5447         ranlib="echo ignoring ranlib"
5448         ;;
5449     os/2*)
5450         strip="lxlite -CS"
5451         striptype=""
5452         objformat="aout"
5453         add_cppflags -D_GNU_SOURCE
5454         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5455         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5456         LIBSUF="_s.a"
5457         SLIBPREF=""
5458         SLIBSUF=".dll"
5459         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5460         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5461         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5462             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5463             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5464             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5465             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5466         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5467             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5468         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5469         SLIB_INSTALL_LINKS=
5470         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5471         enable dos_paths
5472         enable_weak os2threads
5473         ;;
5474     gnu/kfreebsd)
5475         add_cppflags -D_BSD_SOURCE
5476         ;;
5477     gnu)
5478         ;;
5479     qnx)
5480         add_cppflags -D_QNX_SOURCE
5481         network_extralibs="-lsocket"
5482         ;;
5483     symbian)
5484         SLIBSUF=".dll"
5485         enable dos_paths
5486         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5487         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5488         add_ldflags -Wl,--target1-abs,--no-undefined \
5489                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5490                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5491         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5492                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5493                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5494         ;;
5495     minix)
5496         ;;
5497     none)
5498         ;;
5499     *)
5500         die "Unknown OS '$target_os'."
5501         ;;
5502 esac
5503
5504 # test if creating links works
5505 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5506 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5507 mkdir "$link_dest"
5508 $ln_s "$link_dest" "$link_name"
5509 touch "$link_dest/test_file"
5510 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5511     # create link to source path
5512     [ -e src ] && rm src
5513     $ln_s "$source_path" src
5514     source_link=src
5515 else
5516     # creating directory links doesn't work
5517     # fall back to using the full source path
5518     source_link="$source_path"
5519 fi
5520 # cleanup
5521 rm -r "$link_dest"
5522 rm -r "$link_name"
5523
5524 # determine libc flavour
5525
5526 probe_libc(){
5527     pfx=$1
5528     pfx_no_=${pfx%_}
5529     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5530     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5531         eval ${pfx}libc_type=uclibc
5532         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5533     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5534         eval ${pfx}libc_type=glibc
5535         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5536     # MinGW headers can be installed on Cygwin, so check for newlib first.
5537     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5538         eval ${pfx}libc_type=newlib
5539         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5540     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5541     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5542         eval ${pfx}libc_type=mingw64
5543         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5544             add_compat msvcrt/snprintf.o
5545             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5546         fi
5547         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5548         eval test \$${pfx_no_}cc_type = "gcc" &&
5549             add_${pfx}cppflags -D__printf__=__gnu_printf__
5550         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5551             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5552         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5553     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5554          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5555         eval ${pfx}libc_type=mingw32
5556         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5557             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5558             die "ERROR: MinGW32 runtime version must be >= 3.15."
5559         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5560         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5561             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5562         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5563             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5564         eval test \$${pfx_no_}cc_type = "gcc" &&
5565             add_${pfx}cppflags -D__printf__=__gnu_printf__
5566         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5567     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5568         eval ${pfx}libc_type=msvcrt
5569         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5570             if [ "$pfx" = host_ ]; then
5571                 add_host_cppflags -Dsnprintf=_snprintf
5572             else
5573                 add_compat strtod.o strtod=avpriv_strtod
5574                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5575                                              _snprintf=avpriv_snprintf  \
5576                                              vsnprintf=avpriv_vsnprintf
5577             fi
5578         fi
5579         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5580         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5581         # 0x601 by default unless something else is set by the user.
5582         # This can easily lead to us detecting functions only present
5583         # in such new versions and producing binaries requiring windows 7.0.
5584         # Therefore explicitly set the default to Vista unless the user has
5585         # set something else on the command line.
5586         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5587         # family. For these cases, configure is free to use any functions
5588         # found in the SDK headers by default. (Alternatively, we could force
5589         # _WIN32_WINNT to 0x0602 in that case.)
5590         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5591             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5592 #ifdef WINAPI_FAMILY
5593 #include <winapifamily.h>
5594 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5595 #error not desktop
5596 #endif
5597 #endif
5598 EOF
5599         if [ "$pfx" = "" ]; then
5600             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5601             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5602         fi
5603     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5604         eval ${pfx}libc_type=klibc
5605     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5606         eval ${pfx}libc_type=bionic
5607     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5608         eval ${pfx}libc_type=solaris
5609         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5610     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5611         eval ${pfx}libc_type=djgpp
5612         add_cppflags -U__STRICT_ANSI__
5613         add_cflags "-include $source_path/compat/djgpp/math.h"
5614         add_compat djgpp/math.o
5615     fi
5616     test_${pfx}cc <<EOF
5617 #include <time.h>
5618 void *v = localtime_r;
5619 EOF
5620 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5621 #include <time.h>
5622 void *v = localtime_r;
5623 EOF
5624
5625     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5626 }
5627
5628 probe_libc
5629 probe_libc host_
5630
5631 # hacks for compiler/libc/os combinations
5632
5633 case $libc_type in
5634     bionic)
5635         add_compat strtod.o strtod=avpriv_strtod
5636         ;;
5637 esac
5638
5639 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5640     add_cppflags '-I\$(SRC_PATH)/compat/float'
5641
5642 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5643
5644 set_default libdir
5645 : ${shlibdir_default:="$libdir"}
5646 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5647
5648 set_default $PATHS_LIST
5649 set_default nm
5650
5651 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5652
5653 enable_weak_pic() {
5654     disabled pic && return
5655     enable pic
5656     add_cppflags -DPIC
5657     case "$target_os" in
5658     mingw*|cygwin*|win*)
5659         ;;
5660     *)
5661         add_cflags -fPIC
5662         add_asflags -fPIC
5663         ;;
5664     esac
5665 }
5666
5667 enabled pic && enable_weak_pic
5668
5669 test_cc <<EOF || die "Symbol mangling check failed."
5670 int ff_extern;
5671 EOF
5672 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5673 extern_prefix=${sym%%ff_extern*}
5674
5675 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5676
5677 for restrict_keyword in restrict __restrict__ __restrict ""; do
5678     test_code cc "" "char * $restrict_keyword p" && break
5679 done
5680
5681 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5682
5683 # The global variable ensures the bits appear unchanged in the object file.
5684 test_cc <<EOF || die "endian test failed"
5685 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5686 EOF
5687 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5688
5689 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5690
5691 if ! enabled ppc64 || enabled bigendian; then
5692     disable vsx
5693 fi
5694
5695 check_gas() {
5696     log "check_gas using '$as' as AS"
5697     # :vararg is used on aarch64, arm and ppc altivec
5698     check_as vararg "
5699 .macro m n, y:vararg=0
5700 \n: .int \y
5701 .endm
5702 m x" || return 1
5703     # .altmacro is only used in arm asm
5704     ! enabled arm || check_as gnu_as ".altmacro"
5705 }
5706
5707 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5708     nogas=:
5709     enabled_any arm aarch64 && nogas=die
5710     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5711     as_noop=-v
5712
5713     case $as_type in
5714         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5715         gcc)  gaspp_as_type=gas ;;
5716         *)    gaspp_as_type=$as_type ;;
5717     esac
5718
5719     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5720
5721     test "${as#*gas-preprocessor.pl}" != "$as" ||
5722     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5723         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5724
5725     if ! check_gas ; then
5726         as=${gas:=$as}
5727         check_gas || \
5728             $nogas "GNU assembler not found, install/update gas-preprocessor"
5729     fi
5730
5731     check_as as_func ".func test
5732                       .endfunc"
5733 fi
5734
5735 check_inline_asm inline_asm_labels '"1:\n"'
5736
5737 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5738
5739 if enabled aarch64; then
5740     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5741     # internal assembler in clang 3.3 does not support this instruction
5742     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5743     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5744
5745     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5746
5747 elif enabled alpha; then
5748
5749     check_cflags -mieee
5750
5751 elif enabled arm; then
5752
5753     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5754     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5755 float func(float a, float b){ return a+b; }
5756 EOF
5757     enabled thumb && check_cflags -mthumb || check_cflags -marm
5758
5759     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5760         :
5761     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5762         :
5763     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5764         case "${cross_prefix:-$cc}" in
5765             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5766             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5767 __asm__ (".eabi_attribute 28, 1");
5768 int main(void) { return 0; }
5769 EOF
5770         esac
5771         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5772     fi
5773
5774     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5775     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5776     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5777     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5778     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5779     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5780     enabled setend  && check_insn setend  'setend be'
5781
5782     [ $target_os = linux ] || [ $target_os = android ] ||
5783         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5784             $ARCH_EXT_LIST_ARM
5785
5786     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5787
5788     check_as as_arch_directive ".arch armv7-a"
5789     check_as as_dn_directive   "ra .dn d0.i16"
5790     check_as as_fpu_directive  ".fpu neon"
5791
5792     # llvm's integrated assembler supports .object_arch from llvm 3.5
5793     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5794         check_as as_object_arch ".object_arch armv4"
5795
5796     # MS armasm fails to assemble our PIC constructs
5797     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5798
5799 elif enabled mips; then
5800
5801     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5802     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5803     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5804
5805     # Enable minimum ISA based on selected options
5806     if enabled mips64; then
5807         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5808         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5809         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5810     else
5811         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5812         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5813         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5814         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5815     fi
5816
5817     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5818     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5819     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5820     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5821     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5822     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5823
5824     if enabled bigendian && enabled msa; then
5825         disable msa
5826     fi
5827
5828 elif enabled parisc; then
5829
5830     if enabled gcc; then
5831         case $($cc -dumpversion) in
5832             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5833         esac
5834     fi
5835
5836 elif enabled ppc; then
5837
5838     enable local_aligned
5839
5840     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5841     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5842     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5843     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5844
5845     if enabled altivec; then
5846         check_cflags -maltivec -mabi=altivec
5847
5848         # check if our compiler supports Motorola AltiVec C API
5849         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5850                                     vector signed int v2 = (vector signed int) { 1 };
5851                                     v1 = vec_add(v1, v2);"
5852
5853         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5854     fi
5855
5856     if enabled vsx; then
5857         check_cflags -mvsx &&
5858         check_cc vsx altivec.h "int v[4] = { 0 };
5859                                 vector signed int v1 = vec_vsx_ld(0, v);"
5860     fi
5861
5862     if enabled power8; then
5863         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5864     fi
5865
5866 elif enabled x86; then
5867
5868     check_builtin rdtsc    intrin.h   "__rdtsc()"
5869     check_builtin mm_empty mmintrin.h "_mm_empty()"
5870
5871     enable local_aligned
5872
5873     # check whether EBP is available on x86
5874     # As 'i' is stored on the stack, this program will crash
5875     # if the base pointer is used to access it because the
5876     # base pointer is cleared in the inline assembly code.
5877     check_exec_crash <<EOF && enable ebp_available
5878 volatile int i=0;
5879 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5880 return i;
5881 EOF
5882
5883     # check whether EBX is available on x86
5884     check_inline_asm ebx_available '""::"b"(0)' &&
5885         check_inline_asm ebx_available '"":::"%ebx"'
5886
5887     # check whether xmm clobbers are supported
5888     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5889
5890     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5891         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5892
5893     # check whether binutils is new enough to compile SSSE3/MMXEXT
5894     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5895     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5896
5897     probe_x86asm(){
5898         x86asmexe_probe=$1
5899         if test_cmd $x86asmexe_probe -v; then
5900             x86asmexe=$x86asmexe_probe
5901             x86asm_type=nasm
5902             x86asm_debug="-g -F dwarf"
5903             X86ASMDEP=
5904             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5905         elif test_cmd $x86asmexe_probe --version; then
5906             x86asmexe=$x86asmexe_probe
5907             x86asm_type=yasm
5908             x86asm_debug="-g dwarf2"
5909             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5910             X86ASM_DEPFLAGS=
5911         fi
5912         check_x86asm x86asm "movbe ecx, [5]"
5913     }
5914
5915     if ! disabled_any asm mmx x86asm; then
5916         disable x86asm
5917         for program in $x86asmexe nasm yasm; do
5918             probe_x86asm $program && break
5919         done
5920         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5921         X86ASMFLAGS="-f $objformat"
5922         enabled pic               && append X86ASMFLAGS "-DPIC"
5923         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5924         case "$objformat" in
5925             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5926         esac
5927
5928         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5929         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5930         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5931         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5932         check_x86asm cpunop          "CPU amdnop"
5933     fi
5934
5935     case "$cpu" in
5936         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5937             disable fast_clz
5938         ;;
5939     esac
5940
5941 fi
5942
5943 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5944
5945 check_ldflags -Wl,--as-needed
5946 check_ldflags -Wl,-z,noexecstack
5947
5948 if ! disabled network; then
5949     check_func getaddrinfo $network_extralibs
5950     check_func inet_aton $network_extralibs
5951
5952     check_type netdb.h "struct addrinfo"
5953     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5954     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5955     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5956     check_type poll.h "struct pollfd"
5957     check_type netinet/sctp.h "struct sctp_event_subscribe"
5958     check_struct "sys/socket.h" "struct msghdr" msg_flags
5959     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5960     check_type netinet/in.h "struct sockaddr_in6"
5961     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5962     check_type "sys/types.h sys/socket.h" socklen_t
5963
5964     # Prefer arpa/inet.h over winsock2
5965     if check_headers arpa/inet.h ; then
5966         check_func closesocket
5967     elif check_headers winsock2.h ; then
5968         check_func_headers winsock2.h closesocket -lws2 &&
5969             network_extralibs="-lws2" ||
5970         { check_func_headers winsock2.h closesocket -lws2_32 &&
5971             network_extralibs="-lws2_32"; } || disable winsock2_h network
5972         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5973
5974         check_type ws2tcpip.h socklen_t
5975         check_type ws2tcpip.h "struct addrinfo"
5976         check_type ws2tcpip.h "struct group_source_req"
5977         check_type ws2tcpip.h "struct ip_mreq_source"
5978         check_type ws2tcpip.h "struct ipv6_mreq"
5979         check_type winsock2.h "struct pollfd"
5980         check_struct winsock2.h "struct sockaddr" sa_len
5981         check_type ws2tcpip.h "struct sockaddr_in6"
5982         check_type ws2tcpip.h "struct sockaddr_storage"
5983     else
5984         disable network
5985     fi
5986 fi
5987
5988 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5989 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5990 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5991 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5992 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5993 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5994 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5995
5996 case "$custom_allocator" in
5997     jemalloc)
5998         # jemalloc by default does not use a prefix
5999         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
6000     ;;
6001     tcmalloc)
6002         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
6003         malloc_prefix=tc_
6004     ;;
6005 esac
6006
6007 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
6008 check_func  ${malloc_prefix}memalign            && enable memalign
6009 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
6010
6011 check_func  access
6012 check_func_headers stdlib.h arc4random
6013 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
6014 check_func  fcntl
6015 check_func  fork
6016 check_func  gethrtime
6017 check_func  getopt
6018 check_func  getrusage
6019 check_func  gettimeofday
6020 check_func  isatty
6021 check_func  mkstemp
6022 check_func  mmap
6023 check_func  mprotect
6024 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
6025 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
6026 check_func  sched_getaffinity
6027 check_func  setrlimit
6028 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
6029 check_func  strerror_r
6030 check_func  sysconf
6031 check_func  sysctl
6032 check_func  usleep
6033
6034 check_func_headers conio.h kbhit
6035 check_func_headers io.h setmode
6036 check_func_headers lzo/lzo1x.h lzo1x_999_compress
6037 check_func_headers mach/mach_time.h mach_absolute_time
6038 check_func_headers stdlib.h getenv
6039 check_func_headers sys/stat.h lstat
6040
6041 check_func_headers windows.h GetModuleHandle
6042 check_func_headers windows.h GetProcessAffinityMask
6043 check_func_headers windows.h GetProcessTimes
6044 check_func_headers windows.h GetSystemTimeAsFileTime
6045 check_func_headers windows.h LoadLibrary
6046 check_func_headers windows.h MapViewOfFile
6047 check_func_headers windows.h PeekNamedPipe
6048 check_func_headers windows.h SetConsoleTextAttribute
6049 check_func_headers windows.h SetConsoleCtrlHandler
6050 check_func_headers windows.h SetDllDirectory
6051 check_func_headers windows.h Sleep
6052 check_func_headers windows.h VirtualAlloc
6053 check_func_headers glob.h glob
6054 enabled xlib &&
6055     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
6056
6057 check_headers direct.h
6058 check_headers dirent.h
6059 check_headers dxgidebug.h
6060 check_headers dxva.h
6061 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
6062 check_headers io.h
6063 check_headers linux/perf_event.h
6064 check_headers libcrystalhd/libcrystalhd_if.h
6065 check_headers malloc.h
6066 check_headers net/udplite.h
6067 check_headers poll.h
6068 check_headers sys/param.h
6069 check_headers sys/resource.h
6070 check_headers sys/select.h
6071 check_headers sys/time.h
6072 check_headers sys/un.h
6073 check_headers termios.h
6074 check_headers unistd.h
6075 check_headers valgrind/valgrind.h
6076 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6077 check_headers windows.h
6078 check_headers X11/extensions/XvMClib.h
6079 check_headers asm/types.h
6080
6081 # it seems there are versions of clang in some distros that try to use the
6082 # gcc headers, which explodes for stdatomic
6083 # so we also check that atomics actually work here
6084 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6085
6086 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6087 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6088     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6089 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6090 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6091 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6092
6093 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6094 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6095 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6096
6097 enabled appkit       && check_apple_framework AppKit
6098 enabled audiotoolbox && check_apple_framework AudioToolbox
6099 enabled avfoundation && check_apple_framework AVFoundation
6100 enabled coreimage    && check_apple_framework CoreImage
6101 enabled videotoolbox && check_apple_framework VideoToolbox
6102
6103 check_apple_framework CoreFoundation
6104 check_apple_framework CoreMedia
6105 check_apple_framework CoreVideo
6106
6107 enabled avfoundation && {
6108     disable coregraphics applicationservices
6109     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6110     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6111
6112 enabled videotoolbox && {
6113     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6114     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6115     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6116     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
6117     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
6118     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
6119 }
6120
6121 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6122
6123 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6124 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6125 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6126 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6127 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6128
6129 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6130 check_type "vdpau/vdpau.h" "VdpPictureInfoVP9"
6131
6132 if [ -z "$nvccflags" ]; then
6133     nvccflags=$nvccflags_default
6134 fi
6135
6136 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6137     nvccflags="$nvccflags -m64"
6138 else
6139     nvccflags="$nvccflags -m32"
6140 fi
6141
6142 if enabled cuda_nvcc; then
6143     nvccflags="$nvccflags -ptx"
6144 else
6145     nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
6146     check_nvcc cuda_llvm
6147 fi
6148
6149 if ! disabled ffnvcodec; then
6150     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6151     check_pkg_config ffnvcodec "ffnvcodec >= 9.1.23.1" "$ffnv_hdr_list" "" || \
6152       check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.3 ffnvcodec < 9.1" "$ffnv_hdr_list" "" || \
6153       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.10 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6154       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.11 ffnvcodec < 8.2" "$ffnv_hdr_list" ""
6155 fi
6156
6157 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6158
6159 if ! disabled w32threads && ! enabled pthreads; then
6160     check_func_headers "windows.h process.h" _beginthreadex &&
6161         check_type "windows.h" CONDITION_VARIABLE &&
6162         check_type "windows.h" INIT_ONCE &&
6163         enable w32threads || disable w32threads
6164     if ! enabled w32threads && enabled winrt; then
6165         check_func_headers "windows.h" CreateThread &&
6166             enable w32threads || disable w32threads
6167     fi
6168 fi
6169
6170 # check for some common methods of building with pthread support
6171 # do this before the optional library checks as some of them require pthreads
6172 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6173     if check_lib pthreads pthread.h pthread_join   -pthread &&
6174        check_lib pthreads pthread.h pthread_create -pthread; then
6175         add_cflags -pthread
6176     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6177          check_lib pthreads pthread.h pthread_create -pthreads; then
6178         add_cflags -pthreads
6179     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6180          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6181         add_cflags -ldl -pthread
6182     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6183          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6184         :
6185     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6186          check_lib pthreads pthread.h pthread_create -lpthread; then
6187         :
6188     elif check_func pthread_join && check_func pthread_create; then
6189         enable pthreads
6190     fi
6191     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6192
6193     if enabled pthreads; then
6194         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6195         check_func pthread_cancel $pthreads_extralibs
6196     fi
6197 fi
6198
6199 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6200                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6201 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6202 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6203
6204 # On some systems dynamic loading requires no extra linker flags
6205 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6206
6207 check_lib libm math.h sin -lm
6208
6209 atan2f_args=2
6210 copysign_args=2
6211 hypot_args=2
6212 ldexpf_args=2
6213 powf_args=2
6214
6215 for func in $MATH_FUNCS; do
6216     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6217 done
6218
6219 for func in $COMPLEX_FUNCS; do
6220     eval check_complexfunc $func \${${func}_args:-1}
6221 done
6222
6223 # these are off by default, so fail if requested and not available
6224 enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
6225 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6226 enabled decklink          && { require_headers DeckLinkAPI.h &&
6227                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6228 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6229 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6230 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6231 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6232 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6233 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6234 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6235                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6236                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6237 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6238 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6239 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6240 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6241 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6242 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6243                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6244                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6245 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6246 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6247 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d/dav1d.h" dav1d_version
6248 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6249 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6250 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6251 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6252                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6253                                  warn "using libfdk without pkg-config"; } }
6254 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"
6255 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6256 enabled fontconfig        && enable libfontconfig
6257 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6258 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6259 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6260 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6261                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6262 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6263                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6264                                done || die "ERROR: libgsm not found"; }
6265 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6266 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6267 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6268 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6269 # While it may appear that require is being used as a pkg-config
6270 # fallback for libmfx, it is actually being used to detect a different
6271 # installation route altogether.  If libmfx is installed via the Intel
6272 # Media SDK or Intel Media Server Studio, these don't come with
6273 # pkg-config support.  Instead, users should make sure that the build
6274 # can find the libraries and headers through other means.
6275 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6276                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6277 if enabled libmfx; then
6278    check_cc MFX_CODEC_VP9 "mfx/mfxvp9.h mfx/mfxstructures.h" "MFX_CODEC_VP9"
6279 fi
6280
6281 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6282 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6283 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine ||
6284                                require libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine -lmysofa $zlib_extralibs; }
6285 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6286                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6287                                die "ERROR: libnpp not found"; }
6288 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6289 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6290 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6291                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6292                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6293                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6294 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6295 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6296                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6297 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6298 enabled libopus           && {
6299     enabled libopus_decoder && {
6300         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6301     }
6302     enabled libopus_encoder && {
6303         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6304     }
6305 }
6306 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6307 enabled librav1e          && require_pkg_config librav1e "rav1e >= 0.1.0" rav1e.h rav1e_context_new
6308 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6309 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6310 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6311 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6312 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6313                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6314 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6315 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6316 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6317 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6318 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6319 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6320 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6321 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6322 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6323 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6324                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6325                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6326 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6327 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6328 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6329 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6330 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6331                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6332
6333 enabled libvpx            && {
6334     enabled libvpx_vp8_decoder && {
6335         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6336             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"
6337     }
6338     enabled libvpx_vp8_encoder && {
6339         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6340             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"
6341     }
6342     enabled libvpx_vp9_decoder && {
6343         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6344             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"
6345     }
6346     enabled libvpx_vp9_encoder && {
6347         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6348             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"
6349     }
6350     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6351         die "libvpx enabled but no supported decoders found"
6352     fi
6353 }
6354
6355 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6356 enabled libwebp           && {
6357     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6358     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6359 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6360                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6361                                  warn "using libx264 without pkg-config"; } } &&
6362                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6363                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6364 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6365                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6366 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6367 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6368 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6369 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6370 enabled libzmq            && require_pkg_config libzmq "libzmq >= 4.2.1" zmq.h zmq_ctx_new
6371 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6372                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6373                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6374 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6375 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6376                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6377                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6378                                die "ERROR: mbedTLS not found"; }
6379 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6380 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6381                                { ! enabled cross_compile &&
6382                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6383                                  add_ldflags -L/opt/vc/lib/ &&
6384                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6385                                die "ERROR: mmal not found" &&
6386                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6387 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6388                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6389                                die "ERROR: openal not found"; } &&
6390                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6391                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6392 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6393                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6394                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6395                                die "ERROR: opencl not found"; } &&
6396                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6397                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6398                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6399 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6400                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6401                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6402                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6403                                die "ERROR: opengl not found."
6404                              }
6405 enabled omx_rpi           && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame ||
6406                                { ! enabled cross_compile &&
6407                                  add_cflags -isystem/opt/vc/include/IL &&
6408                                  test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame; } ||
6409                                die "ERROR: OpenMAX IL headers from raspberrypi/firmware not found"; } &&
6410                              enable omx
6411 enabled omx               && require_headers OMX_Core.h
6412 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6413                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6414                                check_lib openssl openssl/ssl.h OPENSSL_init_ssl -lssl -lcrypto ||
6415                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6416                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6417                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6418                                die "ERROR: openssl not found"; }
6419 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6420 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6421                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6422                                { enabled libdrm ||
6423                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6424                              }
6425 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6426
6427
6428 if enabled gcrypt; then
6429     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6430     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6431         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6432         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6433         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6434             die "ERROR: gcrypt not found"
6435         add_cflags $gcrypt_cflags
6436     else
6437         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6438     fi
6439 fi
6440
6441 if enabled sdl2; then
6442     SDL2_CONFIG="${cross_prefix}sdl2-config"
6443     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6444     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6445         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6446         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6447         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6448         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6449         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6450             enable sdl2
6451     fi
6452     if test $target_os = "mingw32"; then
6453         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6454     fi
6455 fi
6456
6457 if enabled decklink; then
6458     case $target_os in
6459         mingw32*|mingw64*|win32|win64)
6460             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6461             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6462             ;;
6463     esac
6464 fi
6465
6466 enabled securetransport &&
6467     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6468     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6469         disable securetransport
6470
6471 enabled securetransport &&
6472     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6473
6474 enabled schannel &&
6475     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6476     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6477     schannel_extralibs="-lsecur32" ||
6478         disable schannel
6479
6480 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6481 enabled makeinfo \
6482     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6483     && enable makeinfo_html || disable makeinfo_html
6484 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6485 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6486 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6487 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6488
6489 # check V4L2 codecs available in the API
6490 if enabled v4l2_m2m; then
6491     check_headers linux/fb.h
6492     check_headers linux/videodev2.h
6493     test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6494     check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6495     check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6496     check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6497     check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6498     check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6499     check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6500     check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6501     check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6502     check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6503     check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6504 fi
6505
6506 check_headers sys/videoio.h
6507 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6508
6509 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6510 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6511 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6512 # w32api 3.12 had it defined wrong
6513 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6514
6515 check_type "dshow.h" IBaseFilter
6516
6517 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6518 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6519     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6520     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6521     check_headers "dev/ic/bt8xx.h"
6522
6523 if check_struct sys/soundcard.h audio_buf_info bytes; then
6524     enable_sanitized sys/soundcard.h
6525 else
6526     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6527     #include <sys/soundcard.h>
6528     audio_buf_info abc;
6529 EOF
6530 fi
6531
6532 enabled alsa && { check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6533                   check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound; }
6534
6535 enabled libjack &&
6536     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6537
6538 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6539
6540 if enabled libcdio; then
6541     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6542     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6543     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6544     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6545     die "ERROR: No usable libcdio/cdparanoia found"
6546 fi
6547
6548 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6549     disable libxcb_shm libxcb_shape libxcb_xfixes
6550
6551 if enabled libxcb; then
6552     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6553     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6554     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6555 fi
6556
6557 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6558
6559 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6560 # the desktop api partition
6561 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6562 #ifdef WINAPI_FAMILY
6563 #include <winapifamily.h>
6564 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6565 #error desktop, not uwp
6566 #else
6567 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6568 #endif
6569 #else
6570 #error no family set
6571 #endif
6572 EOF
6573
6574 enabled vaapi &&
6575     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6576
6577 if enabled vaapi; then
6578     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6579
6580     if enabled xlib; then
6581         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6582     fi
6583
6584     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6585
6586     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6587     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6588     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer" output_hdr_metadata
6589     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6590     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6591     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6592     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6593     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6594 fi
6595
6596 if enabled_all opencl libdrm ; then
6597     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6598         enable opencl_drm_beignet
6599     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6600         enable opencl_drm_arm
6601 fi
6602
6603 if enabled_all opencl vaapi ; then
6604     if enabled opencl_drm_beignet ; then
6605         enable opencl_vaapi_beignet
6606     else
6607         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6608             enable opencl_vaapi_intel_media
6609     fi
6610 fi
6611
6612 if enabled_all opencl dxva2 ; then
6613     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6614         enable opencl_dxva2
6615 fi
6616
6617 if enabled_all opencl d3d11va ; then
6618     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6619         enable opencl_d3d11
6620 fi
6621
6622 enabled vdpau &&
6623     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6624
6625 enabled vdpau &&
6626     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6627
6628 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6629
6630 if enabled x86; then
6631     case $target_os in
6632         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6633             ;;
6634         *)
6635             disable ffnvcodec cuvid nvdec nvenc
6636             ;;
6637     esac
6638 elif enabled ppc64 && ! enabled bigendian; then
6639     case $target_os in
6640         linux)
6641             ;;
6642         *)
6643             disable ffnvcodec cuvid nvdec nvenc
6644             ;;
6645     esac
6646 else
6647     disable ffnvcodec cuvid nvdec nvenc
6648 fi
6649
6650 enabled ffnvcodec && enable cuda
6651
6652 enabled nvenc &&
6653     test_cc -I$source_path <<EOF || disable nvenc
6654 #include <ffnvcodec/nvEncodeAPI.h>
6655 NV_ENCODE_API_FUNCTION_LIST flist;
6656 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6657 int main(void) { return 0; }
6658 EOF
6659
6660 enabled amf &&
6661     check_cpp_condition amf "AMF/core/Version.h" \
6662         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400090000"
6663
6664 # Funny iconv installations are not unusual, so check it after all flags have been set
6665 if enabled libc_iconv; then
6666     check_func_headers iconv.h iconv
6667 elif enabled iconv; then
6668     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6669 fi
6670
6671 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6672
6673 # add some useful compiler flags if supported
6674 check_cflags -Wdeclaration-after-statement
6675 check_cflags -Wall
6676 check_cflags -Wdisabled-optimization
6677 check_cflags -Wpointer-arith
6678 check_cflags -Wredundant-decls
6679 check_cflags -Wwrite-strings
6680 check_cflags -Wtype-limits
6681 check_cflags -Wundef
6682 check_cflags -Wmissing-prototypes
6683 check_cflags -Wno-pointer-to-int-cast
6684 check_cflags -Wstrict-prototypes
6685 check_cflags -Wempty-body
6686
6687 if enabled extra_warnings; then
6688     check_cflags -Wcast-qual
6689     check_cflags -Wextra
6690     check_cflags -Wpedantic
6691 fi
6692
6693 check_disable_warning(){
6694     warning_flag=-W${1#-Wno-}
6695     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6696 }
6697
6698 test_cflags -Werror=unused-command-line-argument &&
6699     append unknown_warning_flags "-Werror=unused-command-line-argument"
6700 test_cflags -Werror=unknown-warning-option &&
6701     append unknown_warning_flags "-Werror=unknown-warning-option"
6702
6703 check_disable_warning -Wno-parentheses
6704 check_disable_warning -Wno-switch
6705 check_disable_warning -Wno-format-zero-length
6706 check_disable_warning -Wno-pointer-sign
6707 check_disable_warning -Wno-unused-const-variable
6708 check_disable_warning -Wno-bool-operation
6709 check_disable_warning -Wno-char-subscripts
6710
6711 check_disable_warning_headers(){
6712     warning_flag=-W${1#-Wno-}
6713     test_cflags $warning_flag && add_cflags_headers $1
6714 }
6715
6716 check_disable_warning_headers -Wno-deprecated-declarations
6717 check_disable_warning_headers -Wno-unused-variable
6718
6719 test_cc <<EOF && enable blocks_extension
6720 void (^block)(void);
6721 EOF
6722
6723 # add some linker flags
6724 check_ldflags -Wl,--warn-common
6725 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6726 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6727 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6728
6729 # add some strip flags
6730 check_stripflags -x
6731
6732 enabled neon_clobber_test &&
6733     check_ldflags -Wl,--wrap,avcodec_open2              \
6734                   -Wl,--wrap,avcodec_decode_audio4      \
6735                   -Wl,--wrap,avcodec_decode_video2      \
6736                   -Wl,--wrap,avcodec_decode_subtitle2   \
6737                   -Wl,--wrap,avcodec_encode_audio2      \
6738                   -Wl,--wrap,avcodec_encode_video2      \
6739                   -Wl,--wrap,avcodec_encode_subtitle    \
6740                   -Wl,--wrap,avcodec_send_packet        \
6741                   -Wl,--wrap,avcodec_receive_packet     \
6742                   -Wl,--wrap,avcodec_send_frame         \
6743                   -Wl,--wrap,avcodec_receive_frame      \
6744                   -Wl,--wrap,swr_convert                \
6745                   -Wl,--wrap,avresample_convert ||
6746     disable neon_clobber_test
6747
6748 enabled xmm_clobber_test &&
6749     check_ldflags -Wl,--wrap,avcodec_open2              \
6750                   -Wl,--wrap,avcodec_decode_audio4      \
6751                   -Wl,--wrap,avcodec_decode_video2      \
6752                   -Wl,--wrap,avcodec_decode_subtitle2   \
6753                   -Wl,--wrap,avcodec_encode_audio2      \
6754                   -Wl,--wrap,avcodec_encode_video2      \
6755                   -Wl,--wrap,avcodec_encode_subtitle    \
6756                   -Wl,--wrap,avcodec_send_packet        \
6757                   -Wl,--wrap,avcodec_receive_packet     \
6758                   -Wl,--wrap,avcodec_send_frame         \
6759                   -Wl,--wrap,avcodec_receive_frame      \
6760                   -Wl,--wrap,swr_convert                \
6761                   -Wl,--wrap,avresample_convert         \
6762                   -Wl,--wrap,sws_scale ||
6763     disable xmm_clobber_test
6764
6765 check_ld "cc" proper_dce <<EOF
6766 extern const int array[512];
6767 static inline int func(void) { return array[0]; }
6768 int main(void) { return 0; }
6769 EOF
6770
6771 if enabled proper_dce; then
6772     echo "X { local: *; };" > $TMPV
6773     if test_ldflags -Wl,${version_script},$TMPV; then
6774         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6775         quotes='""'
6776         test_cc <<EOF && enable symver_asm_label
6777 void ff_foo(void) __asm__ ("av_foo@VERSION");
6778 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6779 EOF
6780         test_cc <<EOF && enable symver_gnu_asm
6781 __asm__(".symver ff_foo,av_foo@VERSION");
6782 void ff_foo(void) {}
6783 EOF
6784     fi
6785 fi
6786
6787 if [ -z "$optflags" ]; then
6788     if enabled small; then
6789         optflags=$cflags_size
6790     elif enabled optimizations; then
6791         optflags=$cflags_speed
6792     else
6793         optflags=$cflags_noopt
6794     fi
6795 fi
6796
6797 check_optflags(){
6798     check_cflags "$@"
6799     enabled lto && check_ldflags "$@"
6800 }
6801
6802 check_optflags $optflags
6803 check_optflags -fno-math-errno
6804 check_optflags -fno-signed-zeros
6805
6806 if enabled lto; then
6807     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6808     check_cflags  -flto
6809     check_ldflags -flto $cpuflags
6810     disable inline_asm_direct_symbol_refs
6811 fi
6812
6813 enabled ftrapv && check_cflags -ftrapv
6814
6815 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6816 int x;
6817 EOF
6818
6819
6820 if enabled icc; then
6821     # Just warnings, no remarks
6822     check_cflags -w1
6823     # -wd: Disable following warnings
6824     # 144, 167, 556: -Wno-pointer-sign
6825     # 188: enumerated type mixed with another type
6826     # 1292: attribute "foo" ignored
6827     # 1419: external declaration in primary source file
6828     # 10006: ignoring unknown option -fno-signed-zeros
6829     # 10148: ignoring unknown option -Wno-parentheses
6830     # 10156: ignoring option '-W'; no argument required
6831     # 13200: No EMMS instruction before call to function
6832     # 13203: No EMMS instruction before return from function
6833     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6834     # 11030: Warning unknown option --as-needed
6835     # 10156: ignoring option '-export'; no argument required
6836     check_ldflags -wd10156,11030
6837     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6838     enable ebp_available
6839     # The test above does not test linking
6840     enabled lto && disable symver_asm_label
6841     if enabled x86_32; then
6842         icc_version=$($cc -dumpversion)
6843         test ${icc_version%%.*} -ge 11 &&
6844             check_cflags -falign-stack=maintain-16-byte ||
6845             disable aligned_stack
6846     fi
6847 elif enabled gcc; then
6848     check_optflags -fno-tree-vectorize
6849     check_cflags -Werror=format-security
6850     check_cflags -Werror=implicit-function-declaration
6851     check_cflags -Werror=missing-prototypes
6852     check_cflags -Werror=return-type
6853     check_cflags -Werror=vla
6854     check_cflags -Wformat
6855     check_cflags -fdiagnostics-color=auto
6856     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6857     if enabled x86_32; then
6858         case $target_os in
6859         *bsd*)
6860             # BSDs don't guarantee a 16 byte aligned stack, but we can
6861             # request GCC to try to maintain 16 byte alignment throughout
6862             # function calls. Library entry points that might call assembly
6863             # functions align the stack. (The parameter means 2^4 bytes.)
6864             check_cflags -mpreferred-stack-boundary=4
6865             ;;
6866         esac
6867     fi
6868 elif enabled llvm_gcc; then
6869     check_cflags -mllvm -stack-alignment=16
6870 elif enabled clang; then
6871     if enabled x86_32; then
6872         # Clang doesn't support maintaining alignment without assuming the
6873         # same alignment in every function. If 16 byte alignment would be
6874         # enabled, one would also have to either add attribute_align_arg on
6875         # every single entry point into the libraries or enable -mstackrealign
6876         # (doing stack realignment in every single function).
6877         case $target_os in
6878         mingw32|win32|*bsd*)
6879             disable aligned_stack
6880             ;;
6881         *)
6882             check_cflags -mllvm -stack-alignment=16
6883             check_cflags -mstack-alignment=16
6884             ;;
6885         esac
6886     else
6887         check_cflags -mllvm -stack-alignment=16
6888         check_cflags -mstack-alignment=16
6889     fi
6890     check_cflags -Qunused-arguments
6891     check_cflags -Werror=implicit-function-declaration
6892     check_cflags -Werror=missing-prototypes
6893     check_cflags -Werror=return-type
6894 elif enabled cparser; then
6895     add_cflags -Wno-missing-variable-declarations
6896     add_cflags -Wno-empty-statement
6897 elif enabled armcc; then
6898     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6899     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6900     # 2523: use of inline assembly is deprecated
6901     add_cflags -W${armcc_opt},--diag_suppress=2523
6902     add_cflags -W${armcc_opt},--diag_suppress=1207
6903     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6904     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6905     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6906     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6907 elif enabled pathscale; then
6908     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6909     disable inline_asm
6910 elif enabled_any msvc icl; then
6911     enabled x86_32 && disable aligned_stack
6912     enabled_all x86_32 debug && add_cflags -Oy-
6913     enabled debug && add_ldflags -debug
6914     enable pragma_deprecated
6915     if enabled icl; then
6916         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6917         # (correctly) on icl 13.x.
6918         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6919             add_cflags -Qansi-alias
6920         # Some inline asm is not compilable in debug
6921         if enabled debug; then
6922             disable ebp_available
6923             disable ebx_available
6924         fi
6925     fi
6926     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6927     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6928     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6929     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6930     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6931     # MSVC 2013 and newer can handle it fine.
6932     # If this declspec fails, force including stdlib.h before the restrict redefinition
6933     # happens in config.h.
6934     if [ $restrict_keyword != restrict ]; then
6935         test_cc <<EOF || add_cflags -FIstdlib.h
6936 __declspec($restrict_keyword) void *foo(int);
6937 EOF
6938     fi
6939     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6940     # Issue has been fixed in MSVC v19.00.24218.
6941     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6942         check_cflags -d2SSAOptimizer-
6943     # enable utf-8 source processing on VS2015 U2 and newer
6944     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6945         add_cflags -utf-8
6946 fi
6947
6948 for pfx in "" host_; do
6949     varname=${pfx%_}cc_type
6950     eval "type=\$$varname"
6951     if [ "$type" = "msvc" ]; then
6952         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6953 static inline int foo(int a) { return a; }
6954 EOF
6955     fi
6956 done
6957
6958 case $as_type in
6959     clang)
6960         add_asflags -Qunused-arguments
6961     ;;
6962 esac
6963
6964 case $ld_type in
6965     clang)
6966         check_ldflags -Qunused-arguments
6967     ;;
6968 esac
6969
6970 enable frame_thread_encoder
6971
6972 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6973
6974 check_deps $CONFIG_LIST       \
6975            $CONFIG_EXTRA      \
6976            $HAVE_LIST         \
6977            $ALL_COMPONENTS    \
6978
6979 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"
6980 enabled avresample && warn "Building with deprecated library libavresample"
6981
6982 case $target_os in
6983 haiku)
6984     disable memalign
6985     disable posix_memalign
6986     ;;
6987 *-dos|freedos|opendos)
6988     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6989         disable memalign
6990     fi
6991     ;;
6992 esac
6993
6994 flatten_extralibs(){
6995     nested_entries=
6996     list_name=$1
6997     eval list=\$${1}
6998     for entry in $list; do
6999         entry_copy=$entry
7000         resolve entry_copy
7001         flat_entries=
7002         for e in $entry_copy; do
7003             case $e in
7004                 *_extralibs) nested_entries="$nested_entries$e ";;
7005                           *) flat_entries="$flat_entries$e ";;
7006             esac
7007         done
7008         eval $entry="\$flat_entries"
7009     done
7010     append $list_name "$nested_entries"
7011
7012     resolve nested_entries
7013     if test -n "$(filter '*_extralibs' $nested_entries)"; then
7014         flatten_extralibs $list_name
7015     fi
7016 }
7017
7018 flatten_extralibs_wrapper(){
7019     list_name=$1
7020     flatten_extralibs $list_name
7021     unique $list_name
7022     resolve $list_name
7023     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
7024     eval printf \''%s'\' \""\$$list_name"\"
7025 }
7026
7027 for linkunit in $LIBRARY_LIST; do
7028     unset current_extralibs
7029     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
7030     for comp in ${components}; do
7031         enabled $comp || continue
7032         comp_extralibs="${comp}_extralibs"
7033         append current_extralibs $comp_extralibs
7034     done
7035     eval prepend ${linkunit}_extralibs $current_extralibs
7036 done
7037
7038 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7039     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
7040 done
7041
7042 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
7043
7044 for thread in $THREADS_LIST; do
7045     if enabled $thread; then
7046         test -n "$thread_type" &&
7047             die "ERROR: Only one thread type must be selected." ||
7048             thread_type="$thread"
7049     fi
7050 done
7051
7052 if disabled stdatomic; then
7053     if enabled atomics_gcc; then
7054         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
7055     elif enabled atomics_win32; then
7056         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
7057     elif enabled atomics_suncc; then
7058         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
7059     elif enabled pthreads; then
7060         add_compat atomics/pthread/stdatomic.o
7061         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
7062     else
7063         enabled threads && die "Threading is enabled, but no atomics are available"
7064         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
7065     fi
7066 fi
7067
7068 # Check if requested libraries were found.
7069 for lib in $AUTODETECT_LIBS; do
7070     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
7071 done
7072
7073 enabled zlib && add_cppflags -DZLIB_CONST
7074
7075 # conditional library dependencies, in any order
7076 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
7077 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
7078 enabled afir_filter         && prepend avfilter_deps "avcodec"
7079 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
7080 enabled aresample_filter    && prepend avfilter_deps "swresample"
7081 enabled atempo_filter       && prepend avfilter_deps "avcodec"
7082 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7083 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7084 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7085 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7086 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7087 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7088 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7089 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7090 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7091 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7092 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7093 enabled pan_filter          && prepend avfilter_deps "swresample"
7094 enabled pp_filter           && prepend avfilter_deps "postproc"
7095 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7096 enabled resample_filter && prepend avfilter_deps "avresample"
7097 enabled sab_filter          && prepend avfilter_deps "swscale"
7098 enabled scale_filter    && prepend avfilter_deps "swscale"
7099 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7100 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7101 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7102 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7103 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7104 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7105 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7106 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7107 enabled spp_filter          && prepend avfilter_deps "avcodec"
7108 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7109 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7110 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7111 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7112
7113 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7114
7115 #FIXME
7116 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7117     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7118
7119 enabled opus_decoder    && prepend avcodec_deps "swresample"
7120
7121 # reorder the items at var $1 to align with the items order at var $2 .
7122 # die if an item at $1 is not at $2 .
7123 reorder_by(){
7124     eval rb_in=\$$1
7125     eval rb_ordered=\$$2
7126
7127     for rb in $rb_in; do
7128         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7129     done
7130
7131     rb_out=
7132     for rb in $rb_ordered; do
7133         is_in $rb $rb_in && rb_out="$rb_out$rb "
7134     done
7135     eval $1=\$rb_out
7136 }
7137
7138 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7139 # within a set of N items, N expansions are enough to expose a cycle.
7140 expand_deps(){
7141     unique ${1}_deps  # required for the early break test.
7142     for dummy in $LIBRARY_LIST; do  # N iteratios
7143         eval deps=\$${1}_deps
7144         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7145         unique ${1}_deps
7146         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7147     done
7148
7149     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7150     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7151 }
7152
7153 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7154 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7155
7156 map 'expand_deps $v' $LIBRARY_LIST
7157
7158 if test "$quiet" != "yes"; then
7159
7160 echo "install prefix            $prefix"
7161 echo "source path               $source_path"
7162 echo "C compiler                $cc"
7163 echo "C library                 $libc_type"
7164 if test "$host_cc" != "$cc"; then
7165     echo "host C compiler           $host_cc"
7166     echo "host C library            $host_libc_type"
7167 fi
7168 echo "ARCH                      $arch ($cpu)"
7169 if test "$build_suffix" != ""; then
7170     echo "build suffix              $build_suffix"
7171 fi
7172 if test "$progs_suffix" != ""; then
7173     echo "progs suffix              $progs_suffix"
7174 fi
7175 if test "$extra_version" != ""; then
7176     echo "version string suffix     $extra_version"
7177 fi
7178 echo "big-endian                ${bigendian-no}"
7179 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7180 if enabled x86; then
7181     echo "standalone assembly       ${x86asm-no}"
7182     echo "x86 assembler             ${x86asmexe}"
7183     echo "MMX enabled               ${mmx-no}"
7184     echo "MMXEXT enabled            ${mmxext-no}"
7185     echo "3DNow! enabled            ${amd3dnow-no}"
7186     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7187     echo "SSE enabled               ${sse-no}"
7188     echo "SSSE3 enabled             ${ssse3-no}"
7189     echo "AESNI enabled             ${aesni-no}"
7190     echo "AVX enabled               ${avx-no}"
7191     echo "AVX2 enabled              ${avx2-no}"
7192     echo "AVX-512 enabled           ${avx512-no}"
7193     echo "XOP enabled               ${xop-no}"
7194     echo "FMA3 enabled              ${fma3-no}"
7195     echo "FMA4 enabled              ${fma4-no}"
7196     echo "i686 features enabled     ${i686-no}"
7197     echo "CMOV is fast              ${fast_cmov-no}"
7198     echo "EBX available             ${ebx_available-no}"
7199     echo "EBP available             ${ebp_available-no}"
7200 fi
7201 if enabled aarch64; then
7202     echo "NEON enabled              ${neon-no}"
7203     echo "VFP enabled               ${vfp-no}"
7204 fi
7205 if enabled arm; then
7206     echo "ARMv5TE enabled           ${armv5te-no}"
7207     echo "ARMv6 enabled             ${armv6-no}"
7208     echo "ARMv6T2 enabled           ${armv6t2-no}"
7209     echo "VFP enabled               ${vfp-no}"
7210     echo "NEON enabled              ${neon-no}"
7211     echo "THUMB enabled             ${thumb-no}"
7212 fi
7213 if enabled mips; then
7214     echo "MIPS FPU enabled          ${mipsfpu-no}"
7215     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7216     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7217     echo "MIPS MSA enabled          ${msa-no}"
7218     echo "MIPS MSA2 enabled         ${msa2-no}"
7219     echo "LOONGSON MMI enabled      ${mmi-no}"
7220 fi
7221 if enabled ppc; then
7222     echo "AltiVec enabled           ${altivec-no}"
7223     echo "VSX enabled               ${vsx-no}"
7224     echo "POWER8 enabled            ${power8-no}"
7225     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7226     echo "dcbzl available           ${dcbzl-no}"
7227 fi
7228 echo "debug symbols             ${debug-no}"
7229 echo "strip symbols             ${stripping-no}"
7230 echo "optimize for size         ${small-no}"
7231 echo "optimizations             ${optimizations-no}"
7232 echo "static                    ${static-no}"
7233 echo "shared                    ${shared-no}"
7234 echo "postprocessing support    ${postproc-no}"
7235 echo "network support           ${network-no}"
7236 echo "threading support         ${thread_type-no}"
7237 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7238 echo "texi2html enabled         ${texi2html-no}"
7239 echo "perl enabled              ${perl-no}"
7240 echo "pod2man enabled           ${pod2man-no}"
7241 echo "makeinfo enabled          ${makeinfo-no}"
7242 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7243 test -n "$random_seed" &&
7244     echo "random seed               ${random_seed}"
7245 echo
7246
7247 echo "External libraries:"
7248 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7249 echo
7250
7251 echo "External libraries providing hardware acceleration:"
7252 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7253 echo
7254
7255 echo "Libraries:"
7256 print_enabled '' $LIBRARY_LIST | print_in_columns
7257 echo
7258
7259 echo "Programs:"
7260 print_enabled '' $PROGRAM_LIST | print_in_columns
7261 echo
7262
7263 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7264     echo "Enabled ${type}s:"
7265     eval list=\$$(toupper $type)_LIST
7266     print_enabled '_*' $list | print_in_columns
7267     echo
7268 done
7269
7270 if test -n "$ignore_tests"; then
7271     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7272     echo "Ignored FATE tests:"
7273     echo $ignore_tests | print_in_columns
7274     echo
7275 fi
7276
7277 echo "License: $license"
7278
7279 fi # test "$quiet" != "yes"
7280
7281 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7282     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7283         if disabled $cfg; then
7284             varname=${cfg}_disable_reason
7285             eval "warn \"Disabled $cfg because \$$varname\""
7286         fi
7287     done
7288 fi
7289
7290 if test -n "$WARNINGS"; then
7291     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7292     enabled fatal_warnings && exit 1
7293 fi
7294
7295 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7296
7297 esc(){
7298     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7299 }
7300
7301 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7302
7303 enabled stripping || strip="echo skipping strip"
7304 enabled stripping || striptype=""
7305
7306 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7307
7308 cat > ffbuild/config.mak <<EOF
7309 # Automatically generated by configure - do not modify!
7310 ifndef FFMPEG_CONFIG_MAK
7311 FFMPEG_CONFIG_MAK=1
7312 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7313 prefix=$prefix
7314 LIBDIR=\$(DESTDIR)$libdir
7315 SHLIBDIR=\$(DESTDIR)$shlibdir
7316 INCDIR=\$(DESTDIR)$incdir
7317 BINDIR=\$(DESTDIR)$bindir
7318 DATADIR=\$(DESTDIR)$datadir
7319 DOCDIR=\$(DESTDIR)$docdir
7320 MANDIR=\$(DESTDIR)$mandir
7321 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7322 INSTALL_NAME_DIR=$install_name_dir
7323 SRC_PATH=$source_path
7324 SRC_LINK=$source_link
7325 ifndef MAIN_MAKEFILE
7326 SRC_PATH:=\$(SRC_PATH:.%=..%)
7327 endif
7328 CC_IDENT=$cc_ident
7329 ARCH=$arch
7330 INTRINSICS=$intrinsics
7331 EXTERN_PREFIX=$extern_prefix
7332 CC=$cc
7333 CXX=$cxx
7334 AS=$as
7335 OBJCC=$objcc
7336 LD=$ld
7337 DEPCC=$dep_cc
7338 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7339 DEPAS=$as
7340 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7341 X86ASM=$x86asmexe
7342 DEPX86ASM=$x86asmexe
7343 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7344 AR=$ar
7345 ARFLAGS=$arflags
7346 AR_O=$ar_o
7347 AR_CMD=$ar
7348 NM_CMD=$nm
7349 RANLIB=$ranlib
7350 STRIP=$strip
7351 STRIPTYPE=$striptype
7352 NVCC=$nvcc
7353 CP=cp -p
7354 LN_S=$ln_s
7355 CPPFLAGS=$CPPFLAGS
7356 CFLAGS=$CFLAGS
7357 CXXFLAGS=$CXXFLAGS
7358 OBJCFLAGS=$OBJCFLAGS
7359 ASFLAGS=$ASFLAGS
7360 NVCCFLAGS=$nvccflags
7361 AS_C=$AS_C
7362 AS_O=$AS_O
7363 OBJCC_C=$OBJCC_C
7364 OBJCC_E=$OBJCC_E
7365 OBJCC_O=$OBJCC_O
7366 CC_C=$CC_C
7367 CC_E=$CC_E
7368 CC_O=$CC_O
7369 CXX_C=$CXX_C
7370 CXX_O=$CXX_O
7371 NVCC_C=$NVCC_C
7372 NVCC_O=$NVCC_O
7373 LD_O=$LD_O
7374 X86ASM_O=$X86ASM_O
7375 LD_LIB=$LD_LIB
7376 LD_PATH=$LD_PATH
7377 DLLTOOL=$dlltool
7378 WINDRES=$windres
7379 DEPWINDRES=$dep_cc
7380 DOXYGEN=$doxygen
7381 LDFLAGS=$LDFLAGS
7382 LDEXEFLAGS=$LDEXEFLAGS
7383 LDSOFLAGS=$LDSOFLAGS
7384 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7385 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7386 X86ASMFLAGS=$X86ASMFLAGS
7387 BUILDSUF=$build_suffix
7388 PROGSSUF=$progs_suffix
7389 FULLNAME=$FULLNAME
7390 LIBPREF=$LIBPREF
7391 LIBSUF=$LIBSUF
7392 LIBNAME=$LIBNAME
7393 SLIBPREF=$SLIBPREF
7394 SLIBSUF=$SLIBSUF
7395 EXESUF=$EXESUF
7396 EXTRA_VERSION=$extra_version
7397 CCDEP=$CCDEP
7398 CXXDEP=$CXXDEP
7399 CCDEP_FLAGS=$CCDEP_FLAGS
7400 ASDEP=$ASDEP
7401 ASDEP_FLAGS=$ASDEP_FLAGS
7402 X86ASMDEP=$X86ASMDEP
7403 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7404 CC_DEPFLAGS=$CC_DEPFLAGS
7405 AS_DEPFLAGS=$AS_DEPFLAGS
7406 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7407 HOSTCC=$host_cc
7408 HOSTLD=$host_ld
7409 HOSTCFLAGS=$host_cflags
7410 HOSTCPPFLAGS=$host_cppflags
7411 HOSTEXESUF=$HOSTEXESUF
7412 HOSTLDFLAGS=$host_ldflags
7413 HOSTEXTRALIBS=$host_extralibs
7414 DEPHOSTCC=$host_cc
7415 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7416 HOSTCCDEP=$HOSTCCDEP
7417 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7418 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7419 HOSTCC_C=$HOSTCC_C
7420 HOSTCC_O=$HOSTCC_O
7421 HOSTLD_O=$HOSTLD_O
7422 TARGET_EXEC=$target_exec $target_exec_args
7423 TARGET_PATH=$target_path
7424 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7425 CFLAGS-ffplay=${sdl2_cflags}
7426 CFLAGS_HEADERS=$CFLAGS_HEADERS
7427 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7428 EXTRALIBS=$extralibs
7429 COMPAT_OBJS=$compat_objs
7430 INSTALL=$install
7431 LIBTARGET=${LIBTARGET}
7432 SLIBNAME=${SLIBNAME}
7433 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7434 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7435 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7436 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7437 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7438 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7439 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7440 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7441 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7442 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7443 NOREDZONE_FLAGS=$noredzone_flags
7444 LIBFUZZER_PATH=$libfuzzer_path
7445 IGNORE_TESTS=$ignore_tests
7446 EOF
7447
7448 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7449
7450 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7451     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7452 done
7453
7454 cat > $TMPH <<EOF
7455 /* Automatically generated by configure - do not modify! */
7456 #ifndef FFMPEG_CONFIG_H
7457 #define FFMPEG_CONFIG_H
7458 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7459 #define FFMPEG_LICENSE "$(c_escape $license)"
7460 #define CONFIG_THIS_YEAR 2019
7461 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7462 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7463 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7464 #define av_restrict $restrict_keyword
7465 #define EXTERN_PREFIX "${extern_prefix}"
7466 #define EXTERN_ASM ${extern_prefix}
7467 #define BUILDSUF "$build_suffix"
7468 #define SLIBSUF "$SLIBSUF"
7469 #define HAVE_MMX2 HAVE_MMXEXT
7470 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7471 EOF
7472
7473 test -n "$assert_level" &&
7474     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7475
7476 test -n "$malloc_prefix" &&
7477     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7478
7479 if enabled x86asm; then
7480     append config_files $TMPASM
7481     cat > $TMPASM <<EOF
7482 ; Automatically generated by configure - do not modify!
7483 EOF
7484 fi
7485
7486 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7487
7488
7489 mkdir -p doc
7490 mkdir -p tests
7491 mkdir -p tests/api
7492 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7493
7494 print_config ARCH_   "$config_files" $ARCH_LIST
7495 print_config HAVE_   "$config_files" $HAVE_LIST
7496 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7497                                      $CONFIG_EXTRA      \
7498                                      $ALL_COMPONENTS    \
7499
7500 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7501 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7502
7503 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7504 cp_if_changed $TMPH config.h
7505 touch ffbuild/.config
7506
7507 enabled x86asm && cp_if_changed $TMPASM config.asm
7508
7509 cat > $TMPH <<EOF
7510 /* Generated by ffmpeg configure */
7511 #ifndef AVUTIL_AVCONFIG_H
7512 #define AVUTIL_AVCONFIG_H
7513 EOF
7514
7515 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7516
7517 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7518
7519 cp_if_changed $TMPH libavutil/avconfig.h
7520
7521 # full_filter_name_foo=vf_foo
7522 # full_filter_name_bar=asrc_bar
7523 # ...
7524 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7525
7526 # generate the lists of enabled components
7527 print_enabled_components(){
7528     file=$1
7529     struct_name=$2
7530     name=$3
7531     shift 3
7532     echo "static const $struct_name * const $name[] = {" > $TMPH
7533     for c in $*; do
7534         if enabled $c; then
7535             case $name in
7536                 filter_list)
7537                     eval c=\$full_filter_name_${c%_filter}
7538                 ;;
7539                 indev_list)
7540                     c=${c%_indev}_demuxer
7541                 ;;
7542                 outdev_list)
7543                     c=${c%_outdev}_muxer
7544                 ;;
7545             esac
7546             printf "    &ff_%s,\n" $c >> $TMPH
7547         fi
7548     done
7549     if [ "$name" = "filter_list" ]; then
7550         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7551             printf "    &ff_%s,\n" $c >> $TMPH
7552         done
7553     fi
7554     echo "    NULL };" >> $TMPH
7555     cp_if_changed $TMPH $file
7556 }
7557
7558 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7559 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7560 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7561 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7562 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7563 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7564 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7565 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7566 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7567
7568 # Settings for pkg-config files
7569
7570 cat > $TMPH <<EOF
7571 # Automatically generated by configure - do not modify!
7572 shared=$shared
7573 build_suffix=$build_suffix
7574 prefix=$prefix
7575 libdir=$libdir
7576 incdir=$incdir
7577 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7578 source_path=${source_path}
7579 LIBPREF=${LIBPREF}
7580 LIBSUF=${LIBSUF}
7581 extralibs_avutil="$avutil_extralibs"
7582 extralibs_avcodec="$avcodec_extralibs"
7583 extralibs_avformat="$avformat_extralibs"
7584 extralibs_avdevice="$avdevice_extralibs"
7585 extralibs_avfilter="$avfilter_extralibs"
7586 extralibs_avresample="$avresample_extralibs"
7587 extralibs_postproc="$postproc_extralibs"
7588 extralibs_swscale="$swscale_extralibs"
7589 extralibs_swresample="$swresample_extralibs"
7590 EOF
7591
7592 for lib in $LIBRARY_LIST; do
7593     lib_deps="$(eval echo \$${lib}_deps)"
7594     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7595 done
7596
7597 cp_if_changed $TMPH ffbuild/config.sh