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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --quiet                  Suppress showing informative output
  67   --list-decoders          show all available decoders
  68   --list-encoders          show all available encoders
  69   --list-hwaccels          show all available hardware accelerators
  70   --list-demuxers          show all available demuxers
  71   --list-muxers            show all available muxers
  72   --list-parsers           show all available parsers
  73   --list-protocols         show all available protocols
  74   --list-bsfs              show all available bitstream filters
  75   --list-indevs            show all available input devices
  76   --list-outdevs           show all available output devices
  77   --list-filters           show all available filters
  78
  79 Standard options:
  80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
  81   --disable-logging        do not log configure debug information
  82   --fatal-warnings         fail if any configure warning is generated
  83   --prefix=PREFIX          install in PREFIX [$prefix_default]
  84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  87   --libdir=DIR             install libs in DIR [PREFIX/lib]
  88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  89   --incdir=DIR             install includes in DIR [PREFIX/include]
  90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  92   --enable-rpath           use rpath to allow installing libraries in paths
  93                            not part of the dynamic linker search path
  94                            use rpath when linking programs (USE WITH CARE)
  95   --install-name-dir=DIR   Darwin directory name for installed targets
  96
  97 Licensing options:
  98   --enable-gpl             allow use of GPL code, the resulting libs
  99                            and binaries will be under GPL [no]
 100   --enable-version3        upgrade (L)GPL to version 3 [no]
 101   --enable-nonfree         allow use of nonfree code, the resulting libs
 102                            and binaries will be unredistributable [no]
 103
 104 Configuration options:
 105   --disable-static         do not build static libraries [no]
 106   --enable-shared          build shared libraries [no]
 107   --enable-small           optimize for size instead of speed
 108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
 109   --enable-gray            enable full grayscale support (slower color)
 110   --disable-swscale-alpha  disable alpha channel support in swscale
 111   --disable-all            disable building components, libraries and programs
 112   --disable-autodetect     disable automatically detected external libraries [no]
 113
 114 Program options:
 115   --disable-programs       do not build command line programs
 116   --disable-ffmpeg         disable ffmpeg build
 117   --disable-ffplay         disable ffplay build
 118   --disable-ffprobe        disable ffprobe build
 119
 120 Documentation options:
 121   --disable-doc            do not build documentation
 122   --disable-htmlpages      do not build HTML documentation pages
 123   --disable-manpages       do not build man documentation pages
 124   --disable-podpages       do not build POD documentation pages
 125   --disable-txtpages       do not build text documentation pages
 126
 127 Component options:
 128   --disable-avdevice       disable libavdevice build
 129   --disable-avcodec        disable libavcodec build
 130   --disable-avformat       disable libavformat build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build (deprecated) [no]
 136   --disable-pthreads       disable pthreads [autodetect]
 137   --disable-w32threads     disable Win32 threads [autodetect]
 138   --disable-os2threads     disable OS/2 threads [autodetect]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Individual component options:
 152   --disable-everything     disable all components listed below
 153   --disable-encoder=NAME   disable encoder NAME
 154   --enable-encoder=NAME    enable encoder NAME
 155   --disable-encoders       disable all encoders
 156   --disable-decoder=NAME   disable decoder NAME
 157   --enable-decoder=NAME    enable decoder NAME
 158   --disable-decoders       disable all decoders
 159   --disable-hwaccel=NAME   disable hwaccel NAME
 160   --enable-hwaccel=NAME    enable hwaccel NAME
 161   --disable-hwaccels       disable all hwaccels
 162   --disable-muxer=NAME     disable muxer NAME
 163   --enable-muxer=NAME      enable muxer NAME
 164   --disable-muxers         disable all muxers
 165   --disable-demuxer=NAME   disable demuxer NAME
 166   --enable-demuxer=NAME    enable demuxer NAME
 167   --disable-demuxers       disable all demuxers
 168   --enable-parser=NAME     enable parser NAME
 169   --disable-parser=NAME    disable parser NAME
 170   --disable-parsers        disable all parsers
 171   --enable-bsf=NAME        enable bitstream filter NAME
 172   --disable-bsf=NAME       disable bitstream filter NAME
 173   --disable-bsfs           disable all bitstream filters
 174   --enable-protocol=NAME   enable protocol NAME
 175   --disable-protocol=NAME  disable protocol NAME
 176   --disable-protocols      disable all protocols
 177   --enable-indev=NAME      enable input device NAME
 178   --disable-indev=NAME     disable input device NAME
 179   --disable-indevs         disable input devices
 180   --enable-outdev=NAME     enable output device NAME
 181   --disable-outdev=NAME    disable output device NAME
 182   --disable-outdevs        disable output devices
 183   --disable-devices        disable all devices
 184   --enable-filter=NAME     enable filter NAME
 185   --disable-filter=NAME    disable filter NAME
 186   --disable-filters        disable all filters
 187
 188 External library support:
 189
 190   Using any of the following switches will allow FFmpeg to link to the
 191   corresponding external library. All the components depending on that library
 192   will become enabled, if all their other dependencies are met and they are not
 193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 194   libwavpack and allow the libwavpack encoder to be built, unless it is
 195   specifically disabled with --disable-encoder=libwavpack.
 196
 197   Note that only the system libraries are auto-detected. All the other external
 198   libraries must be explicitly enabled.
 199
 200   Also note that the following help text describes the purpose of the libraries
 201   themselves, not all their features will necessarily be usable by FFmpeg.
 202
 203   --disable-alsa           disable ALSA support [autodetect]
 204   --disable-appkit         disable Apple AppKit framework [autodetect]
 205   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
 206   --enable-avisynth        enable reading of AviSynth script files [no]
 207   --disable-bzlib          disable bzlib [autodetect]
 208   --disable-coreimage      disable Apple CoreImage framework [autodetect]
 209   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 210   --enable-frei0r          enable frei0r video filtering [no]
 211   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 212                            if openssl, librtmp or gmp is not used [no]
 213   --enable-gmp             enable gmp, needed for rtmp(t)e support
 214                            if openssl or librtmp is not used [no]
 215   --enable-gnutls          enable gnutls, needed for https support
 216                            if openssl, libtls or mbedtls is not used [no]
 217   --disable-iconv          disable iconv [autodetect]
 218   --enable-jni             enable JNI support [no]
 219   --enable-ladspa          enable LADSPA audio filtering [no]
 220   --enable-libaom          enable AV1 video encoding/decoding via libaom [no]
 221   --enable-libaribb24      enable ARIB text and caption decoding via libaribb24 [no]
 222   --enable-libass          enable libass subtitles rendering,
 223                            needed for subtitles and ass filter [no]
 224   --enable-libbluray       enable BluRay reading using libbluray [no]
 225   --enable-libbs2b         enable bs2b DSP library [no]
 226   --enable-libcaca         enable textual display using libcaca [no]
 227   --enable-libcelt         enable CELT decoding via libcelt [no]
 228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 229   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
 230   --enable-libdav1d        enable AV1 decoding via libdav1d [no]
 231   --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
 232   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 233                            and libraw1394 [no]
 234   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 235   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 236   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 237   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 238   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 239   --enable-libgme          enable Game Music Emu via libgme [no]
 240   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 241   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 242   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 243   --enable-libjack         enable JACK audio sound server [no]
 244   --enable-libklvanc       enable Kernel Labs VANC processing [no]
 245   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 246   --enable-liblensfun      enable lensfun lens correction [no]
 247   --enable-libmodplug      enable ModPlug via libmodplug [no]
 248   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 249   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 250   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 251   --enable-libopencv       enable video filtering via libopencv [no]
 252   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 253   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 254   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 255   --enable-libopus         enable Opus de/encoding via libopus [no]
 256   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 257   --enable-librsvg         enable SVG rasterization via librsvg [no]
 258   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 259   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 260   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 261   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 262   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 263   --enable-libsoxr         enable Include libsoxr resampling [no]
 264   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 265   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
 266   --enable-libssh          enable SFTP protocol via libssh [no]
 267   --enable-libtensorflow   enable TensorFlow as a DNN module backend
 268                            for DNN based filters like sr [no]
 269   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 270   --enable-libtheora       enable Theora encoding via libtheora [no]
 271   --enable-libtls          enable LibreSSL (via libtls), needed for https support
 272                            if openssl, gnutls or mbedtls is not used [no]
 273   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 274   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 275   --enable-libvidstab      enable video stabilization using vid.stab [no]
 276   --enable-libvmaf         enable vmaf filter via libvmaf [no]
 277   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 278   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 279                            native implementation exists [no]
 280   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 281   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 282   --enable-libwebp         enable WebP encoding via libwebp [no]
 283   --enable-libx264         enable H.264 encoding via x264 [no]
 284   --enable-libx265         enable HEVC encoding via x265 [no]
 285   --enable-libxavs         enable AVS encoding via xavs [no]
 286   --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
 287   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 288   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 289   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 290   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 291   --enable-libxvid         enable Xvid encoding via xvidcore,
 292                            native MPEG-4/Xvid encoder exists [no]
 293   --enable-libxml2         enable XML parsing using the C library libxml2, needed
 294                            for dash demuxing support [no]
 295   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 296   --enable-libzmq          enable message passing via libzmq [no]
 297   --enable-libzvbi         enable teletext support via libzvbi [no]
 298   --enable-lv2             enable LV2 audio filtering [no]
 299   --disable-lzma           disable lzma [autodetect]
 300   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 301   --enable-mbedtls         enable mbedTLS, needed for https support
 302                            if openssl, gnutls or libtls is not used [no]
 303   --enable-mediacodec      enable Android MediaCodec support [no]
 304   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
 305   --enable-openal          enable OpenAL 1.1 capture support [no]
 306   --enable-opencl          enable OpenCL processing [no]
 307   --enable-opengl          enable OpenGL rendering [no]
 308   --enable-openssl         enable openssl, needed for https support
 309                            if gnutls, libtls or mbedtls is not used [no]
 310   --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
 311   --disable-sndio          disable sndio support [autodetect]
 312   --disable-schannel       disable SChannel SSP, needed for TLS support on
 313                            Windows if openssl and gnutls are not used [autodetect]
 314   --disable-sdl2           disable sdl2 [autodetect]
 315   --disable-securetransport disable Secure Transport, needed for TLS support
 316                            on OSX if openssl and gnutls are not used [autodetect]
 317   --enable-vapoursynth     enable VapourSynth demuxer [no]
 318   --disable-xlib           disable xlib [autodetect]
 319   --disable-zlib           disable zlib [autodetect]
 320
 321   The following libraries provide various hardware acceleration features:
 322   --disable-amf            disable AMF video encoding code [autodetect]
 323   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 324   --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
 325   --disable-cuda-llvm      disable CUDA compilation using clang [autodetect]
 326   --disable-cuvid          disable Nvidia CUVID support [autodetect]
 327   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 328   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 329   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
 330   --enable-libdrm          enable DRM code (Linux) [no]
 331   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 332   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 333   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 334   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
 335   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 336   --enable-omx             enable OpenMAX IL code [no]
 337   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 338   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
 339   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
 340   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 341   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 342   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 343
 344 Toolchain options:
 345   --arch=ARCH              select architecture [$arch]
 346   --cpu=CPU                select the minimum required CPU (affects
 347                            instruction selection, may crash on older CPUs)
 348   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 349   --progs-suffix=SUFFIX    program name suffix []
 350   --enable-cross-compile   assume a cross-compiler is used
 351   --sysroot=PATH           root of cross-build tree
 352   --sysinclude=PATH        location of cross-build system headers
 353   --target-os=OS           compiler targets OS [$target_os]
 354   --target-exec=CMD        command to run executables on target
 355   --target-path=DIR        path to view of build directory on target
 356   --target-samples=DIR     path to samples directory on target
 357   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 358   --toolchain=NAME         set tool defaults according to NAME
 359                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
 360                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
 361                            valgrind-massif, valgrind-memcheck,
 362                            msvc, icl, gcov, llvm-cov, hardened)
 363   --nm=NM                  use nm tool NM [$nm_default]
 364   --ar=AR                  use archive tool AR [$ar_default]
 365   --as=AS                  use assembler AS [$as_default]
 366   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 367   --strip=STRIP            use strip tool STRIP [$strip_default]
 368   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 369   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
 370   --cc=CC                  use C compiler CC [$cc_default]
 371   --cxx=CXX                use C compiler CXX [$cxx_default]
 372   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 373   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 374   --nvcc=NVCC              use Nvidia CUDA compiler NVCC or clang [$nvcc_default]
 375   --ld=LD                  use linker LD [$ld_default]
 376   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 377   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 378   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 379   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 380   --host-cc=HOSTCC         use host C compiler HOSTCC
 381   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 382   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 383   --host-ld=HOSTLD         use host linker HOSTLD
 384   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 385   --host-extralibs=HLIBS   use libs HLIBS when linking for host
 386   --host-os=OS             compiler host OS [$target_os]
 387   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 388   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 389   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 390   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 391   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 392   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
 393   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 394   --extra-version=STRING   version string suffix []
 395   --optflags=OPTFLAGS      override optimization-related compiler flags
 396   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
 397   --build-suffix=SUFFIX    library name suffix []
 398   --enable-pic             build position-independent code
 399   --enable-thumb           compile for Thumb instruction set
 400   --enable-lto             use link-time optimization
 401   --env="ENV=override"     override the environment variables
 402
 403 Advanced options (experts only):
 404   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 405   --custom-allocator=NAME  use a supported custom allocator
 406   --disable-symver         disable symbol versioning
 407   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 408   --disable-safe-bitstream-reader
 409                            disable buffer boundary checking in bitreaders
 410                            (faster, but may crash)
 411   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 412
 413 Optimization options (experts only):
 414   --disable-asm            disable all assembly optimizations
 415   --disable-altivec        disable AltiVec optimizations
 416   --disable-vsx            disable VSX optimizations
 417   --disable-power8         disable POWER8 optimizations
 418   --disable-amd3dnow       disable 3DNow! optimizations
 419   --disable-amd3dnowext    disable 3DNow! extended optimizations
 420   --disable-mmx            disable MMX optimizations
 421   --disable-mmxext         disable MMXEXT optimizations
 422   --disable-sse            disable SSE optimizations
 423   --disable-sse2           disable SSE2 optimizations
 424   --disable-sse3           disable SSE3 optimizations
 425   --disable-ssse3          disable SSSE3 optimizations
 426   --disable-sse4           disable SSE4 optimizations
 427   --disable-sse42          disable SSE4.2 optimizations
 428   --disable-avx            disable AVX optimizations
 429   --disable-xop            disable XOP optimizations
 430   --disable-fma3           disable FMA3 optimizations
 431   --disable-fma4           disable FMA4 optimizations
 432   --disable-avx2           disable AVX2 optimizations
 433   --disable-avx512         disable AVX-512 optimizations
 434   --disable-aesni          disable AESNI optimizations
 435   --disable-armv5te        disable armv5te optimizations
 436   --disable-armv6          disable armv6 optimizations
 437   --disable-armv6t2        disable armv6t2 optimizations
 438   --disable-vfp            disable VFP optimizations
 439   --disable-neon           disable NEON optimizations
 440   --disable-inline-asm     disable use of inline assembly
 441   --disable-x86asm         disable use of standalone x86 assembly
 442   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 443   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 444   --disable-msa            disable MSA optimizations
 445   --disable-msa2           disable MSA2 optimizations
 446   --disable-mipsfpu        disable floating point MIPS optimizations
 447   --disable-mmi            disable Loongson SIMD optimizations
 448   --disable-fast-unaligned consider unaligned accesses slow
 449
 450 Developer options (useful when working on FFmpeg itself):
 451   --disable-debug          disable debugging symbols
 452   --enable-debug=LEVEL     set the debug level [$debuglevel]
 453   --disable-optimizations  disable compiler optimizations
 454   --enable-extra-warnings  enable more compiler warnings
 455   --disable-stripping      disable stripping of executables and shared libraries
 456   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 457                            2 causes a slowdown at runtime.
 458   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 459   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 460                            leaks and errors, using the specified valgrind binary.
 461                            Cannot be combined with --target-exec
 462   --enable-ftrapv          Trap arithmetic overflows
 463   --samples=PATH           location of test samples for FATE, if not set use
 464                            \$FATE_SAMPLES at make invocation time.
 465   --enable-neon-clobber-test check NEON registers for clobbering (should be
 466                            used only for debugging purposes)
 467   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 468                            should be used only for debugging purposes)
 469   --enable-random          randomly enable/disable components
 470   --disable-random
 471   --enable-random=LIST     randomly enable/disable specific components or
 472   --disable-random=LIST    component groups. LIST is a comma-separated list
 473                            of NAME[:PROB] entries where NAME is a component
 474                            (group) and PROB the probability associated with
 475                            NAME (default 0.5).
 476   --random-seed=VALUE      seed value for --enable/disable-random
 477   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 478                            (only applies to --disable-optimizations builds)
 479   --enable-ossfuzz         Enable building fuzzer tool
 480   --libfuzzer=PATH         path to libfuzzer
 481   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 482                            in the name) of tests whose result is ignored
 483   --enable-linux-perf      enable Linux Performance Monitor API
 484
 485 NOTE: Object files are built at the place where configure is launched.
 486 EOF
 487   exit 0
 488 }
 489
 490 if test -t 1 && which tput >/dev/null 2>&1; then
 491     ncolors=$(tput colors)
 492     if test -n "$ncolors" && test $ncolors -ge 8; then
 493         bold_color=$(tput bold)
 494         warn_color=$(tput setaf 3)
 495         error_color=$(tput setaf 1)
 496         reset_color=$(tput sgr0)
 497     fi
 498     # 72 used instead of 80 since that's the default of pr
 499     ncols=$(tput cols)
 500 fi
 501 : ${ncols:=72}
 502
 503 log(){
 504     echo "$@" >> $logfile
 505 }
 506
 507 log_file(){
 508     log BEGIN "$1"
 509     log_file_i=1
 510     while IFS= read -r log_file_line; do
 511         printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
 512         log_file_i=$(($log_file_i+1))
 513     done < "$1" >> "$logfile"
 514     log END "$1"
 515 }
 516
 517 warn(){
 518     log "WARNING: $*"
 519     WARNINGS="${WARNINGS}WARNING: $*\n"
 520 }
 521
 522 die(){
 523     log "$@"
 524     echo "$error_color$bold_color$@$reset_color"
 525     cat <<EOF
 526
 527 If you think configure made a mistake, make sure you are using the latest
 528 version from Git.  If the latest version fails, report the problem to the
 529 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 530 EOF
 531     if disabled logging; then
 532         cat <<EOF
 533 Rerun configure with logging enabled (do not use --disable-logging), and
 534 include the log this produces with your report.
 535 EOF
 536     else
 537         cat <<EOF
 538 Include the log file "$logfile" produced by configure as this will help
 539 solve the problem.
 540 EOF
 541     fi
 542     exit 1
 543 }
 544
 545 # Avoid locale weirdness, besides we really just want to translate ASCII.
 546 toupper(){
 547     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 548 }
 549
 550 tolower(){
 551     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 552 }
 553
 554 c_escape(){
 555     echo "$*" | sed 's/["\\]/\\\0/g'
 556 }
 557
 558 sh_quote(){
 559     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 560     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 561     echo "$v"
 562 }
 563
 564 cleanws(){
 565     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 566 }
 567
 568 filter(){
 569     pat=$1
 570     shift
 571     for v; do
 572         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
 573     done
 574 }
 575
 576 filter_out(){
 577     pat=$1
 578     shift
 579     for v; do
 580         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
 581     done
 582 }
 583
 584 map(){
 585     m=$1
 586     shift
 587     for v; do eval $m; done
 588 }
 589
 590 add_suffix(){
 591     suffix=$1
 592     shift
 593     for v; do echo ${v}${suffix}; done
 594 }
 595
 596 remove_suffix(){
 597     suffix=$1
 598     shift
 599     for v; do echo ${v%$suffix}; done
 600 }
 601
 602 set_all(){
 603     value=$1
 604     shift
 605     for var in $*; do
 606         eval $var=$value
 607     done
 608 }
 609
 610 set_weak(){
 611     value=$1
 612     shift
 613     for var; do
 614         eval : \${$var:=$value}
 615     done
 616 }
 617
 618 sanitize_var_name(){
 619     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 620 }
 621
 622 set_sanitized(){
 623     var=$1
 624     shift
 625     eval $(sanitize_var_name "$var")='$*'
 626 }
 627
 628 get_sanitized(){
 629     eval echo \$$(sanitize_var_name "$1")
 630 }
 631
 632 pushvar(){
 633     for pvar in $*; do
 634         eval level=\${${pvar}_level:=0}
 635         eval ${pvar}_${level}="\$$pvar"
 636         eval ${pvar}_level=$(($level+1))
 637     done
 638 }
 639
 640 popvar(){
 641     for pvar in $*; do
 642         eval level=\${${pvar}_level:-0}
 643         test $level = 0 && continue
 644         eval level=$(($level-1))
 645         eval $pvar="\${${pvar}_${level}}"
 646         eval ${pvar}_level=$level
 647         eval unset ${pvar}_${level}
 648     done
 649 }
 650
 651 request(){
 652     for var in $*; do
 653         eval ${var}_requested=yes
 654         eval $var=
 655     done
 656 }
 657
 658 warn_if_gets_disabled(){
 659     for var in $*; do
 660         WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
 661     done
 662 }
 663
 664 enable(){
 665     set_all yes $*
 666 }
 667
 668 disable(){
 669     set_all no $*
 670 }
 671
 672 disable_with_reason(){
 673     disable $1
 674     eval "${1}_disable_reason=\"$2\""
 675     if requested $1; then
 676         die "ERROR: $1 requested, but $2"
 677     fi
 678 }
 679
 680 enable_weak(){
 681     set_weak yes $*
 682 }
 683
 684 disable_weak(){
 685     set_weak no $*
 686 }
 687
 688 enable_sanitized(){
 689     for var; do
 690         enable $(sanitize_var_name $var)
 691     done
 692 }
 693
 694 disable_sanitized(){
 695     for var; do
 696         disable $(sanitize_var_name $var)
 697     done
 698 }
 699
 700 do_enable_deep(){
 701     for var; do
 702         enabled $var && continue
 703         set -- $var
 704         eval enable_deep \$${var}_select
 705         var=$1
 706         eval enable_deep_weak \$${var}_suggest
 707     done
 708 }
 709
 710 enable_deep(){
 711     do_enable_deep $*
 712     enable $*
 713 }
 714
 715 enable_deep_weak(){
 716     for var; do
 717         disabled $var && continue
 718         set -- $var
 719         do_enable_deep $var
 720         var=$1
 721         enable_weak $var
 722     done
 723 }
 724
 725 requested(){
 726     test "${1#!}" = "$1" && op="=" || op="!="
 727     eval test "x\$${1#!}_requested" $op "xyes"
 728 }
 729
 730 enabled(){
 731     test "${1#!}" = "$1" && op="=" || op="!="
 732     eval test "x\$${1#!}" $op "xyes"
 733 }
 734
 735 disabled(){
 736     test "${1#!}" = "$1" && op="=" || op="!="
 737     eval test "x\$${1#!}" $op "xno"
 738 }
 739
 740 enabled_all(){
 741     for opt; do
 742         enabled $opt || return 1
 743     done
 744 }
 745
 746 disabled_all(){
 747     for opt; do
 748         disabled $opt || return 1
 749     done
 750 }
 751
 752 enabled_any(){
 753     for opt; do
 754         enabled $opt && return 0
 755     done
 756 }
 757
 758 disabled_any(){
 759     for opt; do
 760         disabled $opt && return 0
 761     done
 762     return 1
 763 }
 764
 765 set_default(){
 766     for opt; do
 767         eval : \${$opt:=\$${opt}_default}
 768     done
 769 }
 770
 771 is_in(){
 772     value=$1
 773     shift
 774     for var in $*; do
 775         [ $var = $value ] && return 0
 776     done
 777     return 1
 778 }
 779
 780 # The cfg loop is very hot (several thousands iterations), and in bash also
 781 # potentialy quite slow. Try to abort the iterations early, preferably without
 782 # calling functions. 70%+ of the time cfg is already done or without deps.
 783 check_deps(){
 784     for cfg; do
 785         eval [ x\$${cfg}_checking = xdone ] && continue
 786         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
 787
 788         eval "
 789         dep_all=\$${cfg}_deps
 790         dep_any=\$${cfg}_deps_any
 791         dep_con=\$${cfg}_conflict
 792         dep_sel=\$${cfg}_select
 793         dep_sgs=\$${cfg}_suggest
 794         dep_ifa=\$${cfg}_if
 795         dep_ifn=\$${cfg}_if_any
 796         "
 797
 798         # most of the time here $cfg has no deps - avoid costly no-op work
 799         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
 800             eval ${cfg}_checking=inprogress
 801
 802             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
 803             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
 804             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
 805
 806             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 807             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 808             enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
 809             enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
 810             disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
 811             disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
 812
 813             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
 814
 815             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
 816                 # filter out library deps, these do not belong in extralibs
 817                 is_in $dep $LIBRARY_LIST && continue
 818                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
 819             done
 820         fi
 821
 822         eval ${cfg}_checking=done
 823     done
 824 }
 825
 826 print_config(){
 827     pfx=$1
 828     files=$2
 829     shift 2
 830     map 'eval echo "$v \${$v:-no}"' "$@" |
 831     awk "BEGIN { split(\"$files\", files) }
 832         {
 833             c = \"$pfx\" toupper(\$1);
 834             v = \$2;
 835             sub(/yes/, 1, v);
 836             sub(/no/,  0, v);
 837             for (f in files) {
 838                 file = files[f];
 839                 if (file ~ /\\.h\$/) {
 840                     printf(\"#define %s %d\\n\", c, v) >>file;
 841                 } else if (file ~ /\\.asm\$/) {
 842                     printf(\"%%define %s %d\\n\", c, v) >>file;
 843                 } else if (file ~ /\\.mak\$/) {
 844                     n = -v ? \"\" : \"!\";
 845                     printf(\"%s%s=yes\\n\", n, c) >>file;
 846                 } else if (file ~ /\\.texi\$/) {
 847                     pre = -v ? \"\" : \"@c \";
 848                     yesno = \$2;
 849                     c2 = tolower(c);
 850                     gsub(/_/, \"-\", c2);
 851                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 852                 }
 853             }
 854         }"
 855 }
 856
 857 print_enabled(){
 858     suf=$1
 859     shift
 860     for v; do
 861         enabled $v && printf "%s\n" ${v%$suf}
 862     done
 863 }
 864
 865 append(){
 866     var=$1
 867     shift
 868     eval "$var=\"\$$var $*\""
 869 }
 870
 871 prepend(){
 872     var=$1
 873     shift
 874     eval "$var=\"$* \$$var\""
 875 }
 876
 877 reverse () {
 878     eval '
 879         reverse_out=
 880         for v in $'$1'; do
 881             reverse_out="$v $reverse_out"
 882         done
 883         '$1'=$reverse_out
 884     '
 885 }
 886
 887 # keeps the last occurence of each non-unique item
 888 unique(){
 889     unique_out=
 890     eval unique_in=\$$1
 891     reverse unique_in
 892     for v in $unique_in; do
 893         # " $unique_out" +space such that every item is surrounded with spaces
 894         case " $unique_out" in *" $v "*) continue; esac  # already in list
 895         unique_out="$unique_out$v "
 896     done
 897     reverse unique_out
 898     eval $1=\$unique_out
 899 }
 900
 901 resolve(){
 902     resolve_out=
 903     eval resolve_in=\$$1
 904     for v in $resolve_in; do
 905         eval 'resolve_out="$resolve_out$'$v' "'
 906     done
 907     eval $1=\$resolve_out
 908 }
 909
 910 add_cppflags(){
 911     append CPPFLAGS "$@"
 912 }
 913
 914 add_cflags(){
 915     append CFLAGS $($cflags_filter "$@")
 916 }
 917
 918 add_cflags_headers(){
 919     append CFLAGS_HEADERS $($cflags_filter "$@")
 920 }
 921
 922 add_cxxflags(){
 923     append CXXFLAGS $($cflags_filter "$@")
 924 }
 925
 926 add_objcflags(){
 927     append OBJCFLAGS $($objcflags_filter "$@")
 928 }
 929
 930 add_asflags(){
 931     append ASFLAGS $($asflags_filter "$@")
 932 }
 933
 934 add_ldflags(){
 935     append LDFLAGS $($ldflags_filter "$@")
 936 }
 937
 938 add_ldexeflags(){
 939     append LDEXEFLAGS $($ldflags_filter "$@")
 940 }
 941
 942 add_ldsoflags(){
 943     append LDSOFLAGS $($ldflags_filter "$@")
 944 }
 945
 946 add_extralibs(){
 947     prepend extralibs $($ldflags_filter "$@")
 948 }
 949
 950 add_stripflags(){
 951     append ASMSTRIPFLAGS "$@"
 952 }
 953
 954 add_host_cppflags(){
 955     append host_cppflags "$@"
 956 }
 957
 958 add_host_cflags(){
 959     append host_cflags $($host_cflags_filter "$@")
 960 }
 961
 962 add_host_ldflags(){
 963     append host_ldflags $($host_ldflags_filter "$@")
 964 }
 965
 966 add_compat(){
 967     append compat_objs $1
 968     shift
 969     map 'add_cppflags -D$v' "$@"
 970 }
 971
 972 test_cmd(){
 973     log "$@"
 974     "$@" >> $logfile 2>&1
 975 }
 976
 977 test_stat(){
 978     log test_stat "$@"
 979     stat "$1" >> $logfile 2>&1
 980 }
 981
 982 cc_e(){
 983     eval printf '%s\\n' $CC_E
 984 }
 985
 986 cc_o(){
 987     eval printf '%s\\n' $CC_O
 988 }
 989
 990 as_o(){
 991     eval printf '%s\\n' $AS_O
 992 }
 993
 994 x86asm_o(){
 995     eval printf '%s\\n' $X86ASM_O
 996 }
 997
 998 ld_o(){
 999     eval printf '%s\\n' $LD_O
1000 }
1001
1002 hostcc_e(){
1003     eval printf '%s\\n' $HOSTCC_E
1004 }
1005
1006 hostcc_o(){
1007     eval printf '%s\\n' $HOSTCC_O
1008 }
1009
1010 nvcc_o(){
1011     eval printf '%s\\n' $NVCC_O
1012 }
1013
1014 test_cc(){
1015     log test_cc "$@"
1016     cat > $TMPC
1017     log_file $TMPC
1018     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
1019 }
1020
1021 test_cxx(){
1022     log test_cxx "$@"
1023     cat > $TMPCPP
1024     log_file $TMPCPP
1025     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1026 }
1027
1028 test_objcc(){
1029     log test_objcc "$@"
1030     cat > $TMPM
1031     log_file $TMPM
1032     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1033 }
1034
1035 test_nvcc(){
1036     log test_nvcc "$@"
1037     cat > $TMPCU
1038     log_file $TMPCU
1039     tmpcu_=$TMPCU
1040     tmpo_=$TMPO
1041     [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
1042     test_cmd $nvcc $nvccflags "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
1043 }
1044
1045 check_nvcc() {
1046     log check_nvcc "$@"
1047     name=$1
1048     shift 1
1049     disabled $name && return
1050     disable $name
1051     test_nvcc "$@" <<EOF && enable $name
1052 extern "C" {
1053     __global__ void hello(unsigned char *data) {}
1054 }
1055 EOF
1056 }
1057
1058 test_cpp(){
1059     log test_cpp "$@"
1060     cat > $TMPC
1061     log_file $TMPC
1062     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1063 }
1064
1065 test_as(){
1066     log test_as "$@"
1067     cat > $TMPS
1068     log_file $TMPS
1069     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1070 }
1071
1072 test_x86asm(){
1073     log test_x86asm "$@"
1074     echo "$1" > $TMPASM
1075     log_file $TMPASM
1076     shift
1077     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1078 }
1079
1080 check_cmd(){
1081     log check_cmd "$@"
1082     cmd=$1
1083     disabled $cmd && return
1084     disable $cmd
1085     test_cmd $@ && enable $cmd
1086 }
1087
1088 check_as(){
1089     log check_as "$@"
1090     name=$1
1091     code=$2
1092     shift 2
1093     disable $name
1094     test_as $@ <<EOF && enable $name
1095 $code
1096 EOF
1097 }
1098
1099 check_inline_asm(){
1100     log check_inline_asm "$@"
1101     name="$1"
1102     code="$2"
1103     shift 2
1104     disable $name
1105     test_cc "$@" <<EOF && enable $name
1106 void foo(void){ __asm__ volatile($code); }
1107 EOF
1108 }
1109
1110 check_inline_asm_flags(){
1111     log check_inline_asm_flags "$@"
1112     name="$1"
1113     code="$2"
1114     flags=''
1115     shift 2
1116     while [ "$1" != "" ]; do
1117       append flags $1
1118       shift
1119     done;
1120     disable $name
1121     cat > $TMPC <<EOF
1122 void foo(void){ __asm__ volatile($code); }
1123 EOF
1124     log_file $TMPC
1125     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1126     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1127 }
1128
1129 check_insn(){
1130     log check_insn "$@"
1131     check_inline_asm ${1}_inline "\"$2\""
1132     check_as ${1}_external "$2"
1133 }
1134
1135 check_x86asm(){
1136     log check_x86asm "$@"
1137     name=$1
1138     shift
1139     disable $name
1140     test_x86asm "$@" && enable $name
1141 }
1142
1143 test_ld(){
1144     log test_ld "$@"
1145     type=$1
1146     shift 1
1147     flags=$(filter_out '-l*|*.so' $@)
1148     libs=$(filter '-l*|*.so' $@)
1149     test_$type $($cflags_filter $flags) || return
1150     flags=$($ldflags_filter $flags)
1151     libs=$($ldflags_filter $libs)
1152     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1153 }
1154
1155 check_ld(){
1156     log check_ld "$@"
1157     type=$1
1158     name=$2
1159     shift 2
1160     disable $name
1161     test_ld $type $@ && enable $name
1162 }
1163
1164 print_include(){
1165     hdr=$1
1166     test "${hdr%.h}" = "${hdr}" &&
1167         echo "#include $hdr"    ||
1168         echo "#include <$hdr>"
1169 }
1170
1171 test_code(){
1172     log test_code "$@"
1173     check=$1
1174     headers=$2
1175     code=$3
1176     shift 3
1177     {
1178         for hdr in $headers; do
1179             print_include $hdr
1180         done
1181         echo "int main(void) { $code; return 0; }"
1182     } | test_$check "$@"
1183 }
1184
1185 check_cppflags(){
1186     log check_cppflags "$@"
1187     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1188 #include <stdlib.h>
1189 EOF
1190 }
1191
1192 test_cflags(){
1193     log test_cflags "$@"
1194     set -- $($cflags_filter "$@")
1195     test_cc "$@" <<EOF
1196 int x;
1197 EOF
1198 }
1199
1200 check_cflags(){
1201     log check_cflags "$@"
1202     test_cflags "$@" && add_cflags "$@"
1203 }
1204
1205 check_cxxflags(){
1206     log check_cxxflags "$@"
1207     set -- $($cflags_filter "$@")
1208     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1209 int x;
1210 EOF
1211 }
1212
1213 test_objcflags(){
1214     log test_objcflags "$@"
1215     set -- $($objcflags_filter "$@")
1216     test_objcc "$@" <<EOF
1217 int x;
1218 EOF
1219 }
1220
1221 check_objcflags(){
1222     log check_objcflags "$@"
1223     test_objcflags "$@" && add_objcflags "$@"
1224 }
1225
1226 test_ldflags(){
1227     log test_ldflags "$@"
1228     set -- $($ldflags_filter "$@")
1229     test_ld "cc" "$@" <<EOF
1230 int main(void){ return 0; }
1231 EOF
1232 }
1233
1234 check_ldflags(){
1235     log check_ldflags "$@"
1236     test_ldflags "$@" && add_ldflags "$@"
1237 }
1238
1239 test_stripflags(){
1240     log test_stripflags "$@"
1241     # call test_cc to get a fresh TMPO
1242     test_cc <<EOF
1243 int main(void) { return 0; }
1244 EOF
1245     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1246 }
1247
1248 check_stripflags(){
1249     log check_stripflags "$@"
1250     test_stripflags "$@" && add_stripflags "$@"
1251 }
1252
1253 check_headers(){
1254     log check_headers "$@"
1255     headers=$1
1256     shift
1257     disable_sanitized $headers
1258     {
1259         for hdr in $headers; do
1260             print_include $hdr
1261         done
1262         echo "int x;"
1263     } | test_cpp "$@" && enable_sanitized $headers
1264 }
1265
1266 check_header_objcc(){
1267     log check_header_objcc "$@"
1268     rm -f -- "$TMPO"
1269     header=$1
1270     shift
1271     disable_sanitized $header
1272     {
1273        echo "#include <$header>"
1274        echo "int main(void) { return 0; }"
1275     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1276 }
1277
1278 check_apple_framework(){
1279     log check_apple_framework "$@"
1280     framework="$1"
1281     name="$(tolower $framework)"
1282     header="${framework}/${framework}.h"
1283     disable $name
1284     check_header_objcc $header &&
1285         enable $name && eval ${name}_extralibs='"-framework $framework"'
1286 }
1287
1288 check_func(){
1289     log check_func "$@"
1290     func=$1
1291     shift
1292     disable $func
1293     test_ld "cc" "$@" <<EOF && enable $func
1294 extern int $func();
1295 int main(void){ $func(); }
1296 EOF
1297 }
1298
1299 check_complexfunc(){
1300     log check_complexfunc "$@"
1301     func=$1
1302     narg=$2
1303     shift 2
1304     test $narg = 2 && args="f, g" || args="f * I"
1305     disable $func
1306     test_ld "cc" "$@" <<EOF && enable $func
1307 #include <complex.h>
1308 #include <math.h>
1309 float foo(complex float f, complex float g) { return $func($args); }
1310 int main(void){ return (int) foo; }
1311 EOF
1312 }
1313
1314 check_mathfunc(){
1315     log check_mathfunc "$@"
1316     func=$1
1317     narg=$2
1318     shift 2
1319     test $narg = 2 && args="f, g" || args="f"
1320     disable $func
1321     test_ld "cc" "$@" <<EOF && enable $func
1322 #include <math.h>
1323 float foo(float f, float g) { return $func($args); }
1324 int main(void){ return (int) foo; }
1325 EOF
1326 }
1327
1328 check_func_headers(){
1329     log check_func_headers "$@"
1330     headers=$1
1331     funcs=$2
1332     shift 2
1333     {
1334         for hdr in $headers; do
1335             print_include $hdr
1336         done
1337         echo "#include <stdint.h>"
1338         for func in $funcs; do
1339             echo "long check_$func(void) { return (long) $func; }"
1340         done
1341         echo "int main(void) { int ret = 0;"
1342         # LTO could optimize out the test functions without this
1343         for func in $funcs; do
1344             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1345         done
1346         echo "return ret; }"
1347     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1348 }
1349
1350 check_class_headers_cpp(){
1351     log check_class_headers_cpp "$@"
1352     headers=$1
1353     classes=$2
1354     shift 2
1355     {
1356         for hdr in $headers; do
1357             echo "#include <$hdr>"
1358         done
1359         echo "int main(void) { "
1360         i=1
1361         for class in $classes; do
1362             echo "$class obj$i;"
1363             i=$(expr $i + 1)
1364         done
1365         echo "return 0; }"
1366     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1367 }
1368
1369 test_cpp_condition(){
1370     log test_cpp_condition "$@"
1371     header=$1
1372     condition=$2
1373     shift 2
1374     test_cpp "$@" <<EOF
1375 #include <$header>
1376 #if !($condition)
1377 #error "unsatisfied condition: $condition"
1378 #endif
1379 EOF
1380 }
1381
1382 check_cpp_condition(){
1383     log check_cpp_condition "$@"
1384     name=$1
1385     shift 1
1386     disable $name
1387     test_cpp_condition "$@" && enable $name
1388 }
1389
1390 test_cflags_cc(){
1391     log test_cflags_cc "$@"
1392     flags=$1
1393     header=$2
1394     condition=$3
1395     shift 3
1396     set -- $($cflags_filter "$flags")
1397     test_cc "$@" <<EOF
1398 #include <$header>
1399 #if !($condition)
1400 #error "unsatisfied condition: $condition"
1401 #endif
1402 EOF
1403 }
1404
1405 check_lib(){
1406     log check_lib "$@"
1407     name="$1"
1408     headers="$2"
1409     funcs="$3"
1410     shift 3
1411     disable $name
1412     check_func_headers "$headers" "$funcs" "$@" &&
1413         enable $name && eval ${name}_extralibs="\$@"
1414 }
1415
1416 check_lib_cpp(){
1417     log check_lib_cpp "$@"
1418     name="$1"
1419     headers="$2"
1420     classes="$3"
1421     shift 3
1422     disable $name
1423     check_class_headers_cpp "$headers" "$classes" "$@" &&
1424         enable $name && eval ${name}_extralibs="\$@"
1425 }
1426
1427 test_pkg_config(){
1428     log test_pkg_config "$@"
1429     name="$1"
1430     pkg_version="$2"
1431     pkg="${2%% *}"
1432     headers="$3"
1433     funcs="$4"
1434     shift 4
1435     disable $name
1436     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1437     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1438     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1439     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1440         enable $name &&
1441         set_sanitized "${name}_cflags"    $pkg_cflags &&
1442         set_sanitized "${name}_extralibs" $pkg_libs
1443 }
1444
1445 check_pkg_config(){
1446     log check_pkg_config "$@"
1447     name="$1"
1448     test_pkg_config "$@" &&
1449         eval add_cflags \$${name}_cflags
1450 }
1451
1452 test_exec(){
1453     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1454 }
1455
1456 check_exec_crash(){
1457     log check_exec_crash "$@"
1458     code=$(cat)
1459
1460     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1461     # are safe but may not be available everywhere.  Thus we use
1462     # raise(SIGTERM) instead.  The check is run in a subshell so we
1463     # can redirect the "Terminated" message from the shell.  SIGBUS
1464     # is not defined by standard C so it is used conditionally.
1465
1466     (test_exec "$@") >> $logfile 2>&1 <<EOF
1467 #include <signal.h>
1468 static void sighandler(int sig){
1469     raise(SIGTERM);
1470 }
1471 int foo(void){
1472     $code
1473 }
1474 int (*func_ptr)(void) = foo;
1475 int main(void){
1476     signal(SIGILL, sighandler);
1477     signal(SIGFPE, sighandler);
1478     signal(SIGSEGV, sighandler);
1479 #ifdef SIGBUS
1480     signal(SIGBUS, sighandler);
1481 #endif
1482     return func_ptr();
1483 }
1484 EOF
1485 }
1486
1487 check_type(){
1488     log check_type "$@"
1489     headers=$1
1490     type=$2
1491     shift 2
1492     disable_sanitized "$type"
1493     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1494 }
1495
1496 check_struct(){
1497     log check_struct "$@"
1498     headers=$1
1499     struct=$2
1500     member=$3
1501     shift 3
1502     disable_sanitized "${struct}_${member}"
1503     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1504         enable_sanitized "${struct}_${member}"
1505 }
1506
1507 check_builtin(){
1508     log check_builtin "$@"
1509     name=$1
1510     headers=$2
1511     builtin=$3
1512     shift 3
1513     disable "$name"
1514     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1515 }
1516
1517 check_compile_assert(){
1518     log check_compile_assert "$@"
1519     name=$1
1520     headers=$2
1521     condition=$3
1522     shift 3
1523     disable "$name"
1524     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1525 }
1526
1527 check_cc(){
1528     log check_cc "$@"
1529     name=$1
1530     shift
1531     disable "$name"
1532     test_code cc "$@" && enable "$name"
1533 }
1534
1535 require(){
1536     log require "$@"
1537     name_version="$1"
1538     name="${1%% *}"
1539     shift
1540     check_lib $name "$@" || die "ERROR: $name_version not found"
1541 }
1542
1543 require_cc(){
1544     log require_cc "$@"
1545     name="$1"
1546     check_cc "$@" || die "ERROR: $name failed"
1547 }
1548
1549 require_cpp(){
1550     name="$1"
1551     headers="$2"
1552     classes="$3"
1553     shift 3
1554     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1555 }
1556
1557 require_headers(){
1558     log require_headers "$@"
1559     headers="$1"
1560     check_headers "$@" || die "ERROR: $headers not found"
1561 }
1562
1563 require_cpp_condition(){
1564     log require_cpp_condition "$@"
1565     condition="$3"
1566     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1567 }
1568
1569 require_pkg_config(){
1570     log require_pkg_config "$@"
1571     pkg_version="$2"
1572     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1573 }
1574
1575 test_host_cc(){
1576     log test_host_cc "$@"
1577     cat > $TMPC
1578     log_file $TMPC
1579     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1580 }
1581
1582 test_host_cpp(){
1583     log test_host_cpp "$@"
1584     cat > $TMPC
1585     log_file $TMPC
1586     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1587 }
1588
1589 check_host_cppflags(){
1590     log check_host_cppflags "$@"
1591     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1592 #include <stdlib.h>
1593 EOF
1594 }
1595
1596 check_host_cflags(){
1597     log check_host_cflags "$@"
1598     set -- $($host_cflags_filter "$@")
1599     test_host_cc "$@" <<EOF && append host_cflags "$@"
1600 int x;
1601 EOF
1602 }
1603
1604 test_host_cpp_condition(){
1605     log test_host_cpp_condition "$@"
1606     header=$1
1607     condition=$2
1608     shift 2
1609     test_host_cpp "$@" <<EOF
1610 #include <$header>
1611 #if !($condition)
1612 #error "unsatisfied condition: $condition"
1613 #endif
1614 EOF
1615 }
1616
1617 check_host_cpp_condition(){
1618     log check_host_cpp_condition "$@"
1619     name=$1
1620     shift 1
1621     disable $name
1622     test_host_cpp_condition "$@" && enable $name
1623 }
1624
1625 cp_if_changed(){
1626     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1627     mkdir -p "$(dirname $2)"
1628     cp -f "$1" "$2"
1629 }
1630
1631 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1632 # system-dependent things.
1633
1634 AVCODEC_COMPONENTS="
1635     bsfs
1636     decoders
1637     encoders
1638     hwaccels
1639     parsers
1640 "
1641
1642 AVDEVICE_COMPONENTS="
1643     indevs
1644     outdevs
1645 "
1646
1647 AVFILTER_COMPONENTS="
1648     filters
1649 "
1650
1651 AVFORMAT_COMPONENTS="
1652     demuxers
1653     muxers
1654     protocols
1655 "
1656
1657 COMPONENT_LIST="
1658     $AVCODEC_COMPONENTS
1659     $AVDEVICE_COMPONENTS
1660     $AVFILTER_COMPONENTS
1661     $AVFORMAT_COMPONENTS
1662 "
1663
1664 EXAMPLE_LIST="
1665     avio_dir_cmd_example
1666     avio_reading_example
1667     decode_audio_example
1668     decode_video_example
1669     demuxing_decoding_example
1670     encode_audio_example
1671     encode_video_example
1672     extract_mvs_example
1673     filter_audio_example
1674     filtering_audio_example
1675     filtering_video_example
1676     http_multiclient_example
1677     hw_decode_example
1678     metadata_example
1679     muxing_example
1680     qsvdec_example
1681     remuxing_example
1682     resampling_audio_example
1683     scaling_video_example
1684     transcode_aac_example
1685     transcoding_example
1686     vaapi_encode_example
1687     vaapi_transcode_example
1688 "
1689
1690 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1691     alsa
1692     appkit
1693     avfoundation
1694     bzlib
1695     coreimage
1696     iconv
1697     libxcb
1698     libxcb_shm
1699     libxcb_shape
1700     libxcb_xfixes
1701     lzma
1702     schannel
1703     sdl2
1704     securetransport
1705     sndio
1706     xlib
1707     zlib
1708 "
1709
1710 EXTERNAL_LIBRARY_GPL_LIST="
1711     avisynth
1712     frei0r
1713     libcdio
1714     libdavs2
1715     librubberband
1716     libvidstab
1717     libx264
1718     libx265
1719     libxavs
1720     libxavs2
1721     libxvid
1722 "
1723
1724 EXTERNAL_LIBRARY_NONFREE_LIST="
1725     decklink
1726     libfdk_aac
1727     openssl
1728     libtls
1729 "
1730
1731 EXTERNAL_LIBRARY_VERSION3_LIST="
1732     gmp
1733     libaribb24
1734     liblensfun
1735     libopencore_amrnb
1736     libopencore_amrwb
1737     libvmaf
1738     libvo_amrwbenc
1739     mbedtls
1740     rkmpp
1741 "
1742
1743 EXTERNAL_LIBRARY_GPLV3_LIST="
1744     libsmbclient
1745 "
1746
1747 EXTERNAL_LIBRARY_LIST="
1748     $EXTERNAL_LIBRARY_GPL_LIST
1749     $EXTERNAL_LIBRARY_NONFREE_LIST
1750     $EXTERNAL_LIBRARY_VERSION3_LIST
1751     $EXTERNAL_LIBRARY_GPLV3_LIST
1752     chromaprint
1753     gcrypt
1754     gnutls
1755     jni
1756     ladspa
1757     libaom
1758     libass
1759     libbluray
1760     libbs2b
1761     libcaca
1762     libcelt
1763     libcodec2
1764     libdav1d
1765     libdc1394
1766     libdrm
1767     libflite
1768     libfontconfig
1769     libfreetype
1770     libfribidi
1771     libgme
1772     libgsm
1773     libiec61883
1774     libilbc
1775     libjack
1776     libklvanc
1777     libkvazaar
1778     libmodplug
1779     libmp3lame
1780     libmysofa
1781     libopencv
1782     libopenh264
1783     libopenjpeg
1784     libopenmpt
1785     libopus
1786     libpulse
1787     librsvg
1788     librtmp
1789     libshine
1790     libsmbclient
1791     libsnappy
1792     libsoxr
1793     libspeex
1794     libsrt
1795     libssh
1796     libtensorflow
1797     libtesseract
1798     libtheora
1799     libtwolame
1800     libv4l2
1801     libvorbis
1802     libvpx
1803     libwavpack
1804     libwebp
1805     libxml2
1806     libzimg
1807     libzmq
1808     libzvbi
1809     lv2
1810     mediacodec
1811     openal
1812     opengl
1813     pocketsphinx
1814     vapoursynth
1815 "
1816
1817 HWACCEL_AUTODETECT_LIBRARY_LIST="
1818     amf
1819     audiotoolbox
1820     crystalhd
1821     cuda
1822     cuda_llvm
1823     cuvid
1824     d3d11va
1825     dxva2
1826     ffnvcodec
1827     nvdec
1828     nvenc
1829     vaapi
1830     vdpau
1831     videotoolbox
1832     v4l2_m2m
1833     xvmc
1834 "
1835
1836 # catchall list of things that require external libs to link
1837 EXTRALIBS_LIST="
1838     cpu_init
1839     cws2fws
1840 "
1841
1842 HWACCEL_LIBRARY_NONFREE_LIST="
1843     cuda_nvcc
1844     cuda_sdk
1845     libnpp
1846 "
1847
1848 HWACCEL_LIBRARY_LIST="
1849     $HWACCEL_LIBRARY_NONFREE_LIST
1850     libmfx
1851     mmal
1852     omx
1853     opencl
1854 "
1855
1856 DOCUMENT_LIST="
1857     doc
1858     htmlpages
1859     manpages
1860     podpages
1861     txtpages
1862 "
1863
1864 FEATURE_LIST="
1865     ftrapv
1866     gray
1867     hardcoded_tables
1868     omx_rpi
1869     runtime_cpudetect
1870     safe_bitstream_reader
1871     shared
1872     small
1873     static
1874     swscale_alpha
1875 "
1876
1877 # this list should be kept in linking order
1878 LIBRARY_LIST="
1879     avdevice
1880     avfilter
1881     swscale
1882     postproc
1883     avformat
1884     avcodec
1885     swresample
1886     avresample
1887     avutil
1888 "
1889
1890 LICENSE_LIST="
1891     gpl
1892     nonfree
1893     version3
1894 "
1895
1896 PROGRAM_LIST="
1897     ffplay
1898     ffprobe
1899     ffmpeg
1900 "
1901
1902 SUBSYSTEM_LIST="
1903     dct
1904     dwt
1905     error_resilience
1906     faan
1907     fast_unaligned
1908     fft
1909     lsp
1910     lzo
1911     mdct
1912     pixelutils
1913     network
1914     rdft
1915 "
1916
1917 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1918 CONFIG_LIST="
1919     $DOCUMENT_LIST
1920     $EXAMPLE_LIST
1921     $EXTERNAL_LIBRARY_LIST
1922     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1923     $HWACCEL_LIBRARY_LIST
1924     $HWACCEL_AUTODETECT_LIBRARY_LIST
1925     $FEATURE_LIST
1926     $LICENSE_LIST
1927     $LIBRARY_LIST
1928     $PROGRAM_LIST
1929     $SUBSYSTEM_LIST
1930     autodetect
1931     fontconfig
1932     linux_perf
1933     memory_poisoning
1934     neon_clobber_test
1935     ossfuzz
1936     pic
1937     thumb
1938     valgrind_backtrace
1939     xmm_clobber_test
1940     $COMPONENT_LIST
1941 "
1942
1943 THREADS_LIST="
1944     pthreads
1945     os2threads
1946     w32threads
1947 "
1948
1949 ATOMICS_LIST="
1950     atomics_gcc
1951     atomics_suncc
1952     atomics_win32
1953 "
1954
1955 AUTODETECT_LIBS="
1956     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1957     $HWACCEL_AUTODETECT_LIBRARY_LIST
1958     $THREADS_LIST
1959 "
1960
1961 ARCH_LIST="
1962     aarch64
1963     alpha
1964     arm
1965     avr32
1966     avr32_ap
1967     avr32_uc
1968     bfin
1969     ia64
1970     m68k
1971     mips
1972     mips64
1973     parisc
1974     ppc
1975     ppc64
1976     s390
1977     sh4
1978     sparc
1979     sparc64
1980     tilegx
1981     tilepro
1982     tomi
1983     x86
1984     x86_32
1985     x86_64
1986 "
1987
1988 ARCH_EXT_LIST_ARM="
1989     armv5te
1990     armv6
1991     armv6t2
1992     armv8
1993     neon
1994     vfp
1995     vfpv3
1996     setend
1997 "
1998
1999 ARCH_EXT_LIST_MIPS="
2000     mipsfpu
2001     mips32r2
2002     mips32r5
2003     mips64r2
2004     mips32r6
2005     mips64r6
2006     mipsdsp
2007     mipsdspr2
2008     msa
2009     msa2
2010 "
2011
2012 ARCH_EXT_LIST_LOONGSON="
2013     loongson2
2014     loongson3
2015     mmi
2016 "
2017
2018 ARCH_EXT_LIST_X86_SIMD="
2019     aesni
2020     amd3dnow
2021     amd3dnowext
2022     avx
2023     avx2
2024     avx512
2025     fma3
2026     fma4
2027     mmx
2028     mmxext
2029     sse
2030     sse2
2031     sse3
2032     sse4
2033     sse42
2034     ssse3
2035     xop
2036 "
2037
2038 ARCH_EXT_LIST_PPC="
2039     altivec
2040     dcbzl
2041     ldbrx
2042     power8
2043     ppc4xx
2044     vsx
2045 "
2046
2047 ARCH_EXT_LIST_X86="
2048     $ARCH_EXT_LIST_X86_SIMD
2049     cpunop
2050     i686
2051 "
2052
2053 ARCH_EXT_LIST="
2054     $ARCH_EXT_LIST_ARM
2055     $ARCH_EXT_LIST_PPC
2056     $ARCH_EXT_LIST_X86
2057     $ARCH_EXT_LIST_MIPS
2058     $ARCH_EXT_LIST_LOONGSON
2059 "
2060
2061 ARCH_FEATURES="
2062     aligned_stack
2063     fast_64bit
2064     fast_clz
2065     fast_cmov
2066     local_aligned
2067     simd_align_16
2068     simd_align_32
2069     simd_align_64
2070 "
2071
2072 BUILTIN_LIST="
2073     atomic_cas_ptr
2074     machine_rw_barrier
2075     MemoryBarrier
2076     mm_empty
2077     rdtsc
2078     sem_timedwait
2079     sync_val_compare_and_swap
2080 "
2081 HAVE_LIST_CMDLINE="
2082     inline_asm
2083     symver
2084     x86asm
2085 "
2086
2087 HAVE_LIST_PUB="
2088     bigendian
2089     fast_unaligned
2090 "
2091
2092 HEADERS_LIST="
2093     arpa_inet_h
2094     asm_types_h
2095     cdio_paranoia_h
2096     cdio_paranoia_paranoia_h
2097     cuda_h
2098     dispatch_dispatch_h
2099     dev_bktr_ioctl_bt848_h
2100     dev_bktr_ioctl_meteor_h
2101     dev_ic_bt8xx_h
2102     dev_video_bktr_ioctl_bt848_h
2103     dev_video_meteor_ioctl_meteor_h
2104     direct_h
2105     dirent_h
2106     dxgidebug_h
2107     dxva_h
2108     ES2_gl_h
2109     gsm_h
2110     io_h
2111     linux_perf_event_h
2112     machine_ioctl_bt848_h
2113     machine_ioctl_meteor_h
2114     malloc_h
2115     opencv2_core_core_c_h
2116     OpenGL_gl3_h
2117     poll_h
2118     sys_param_h
2119     sys_resource_h
2120     sys_select_h
2121     sys_soundcard_h
2122     sys_time_h
2123     sys_un_h
2124     sys_videoio_h
2125     termios_h
2126     udplite_h
2127     unistd_h
2128     valgrind_valgrind_h
2129     windows_h
2130     winsock2_h
2131 "
2132
2133 INTRINSICS_LIST="
2134     intrinsics_neon
2135 "
2136
2137 COMPLEX_FUNCS="
2138     cabs
2139     cexp
2140 "
2141
2142 MATH_FUNCS="
2143     atanf
2144     atan2f
2145     cbrt
2146     cbrtf
2147     copysign
2148     cosf
2149     erf
2150     exp2
2151     exp2f
2152     expf
2153     hypot
2154     isfinite
2155     isinf
2156     isnan
2157     ldexpf
2158     llrint
2159     llrintf
2160     log2
2161     log2f
2162     log10f
2163     lrint
2164     lrintf
2165     powf
2166     rint
2167     round
2168     roundf
2169     sinf
2170     trunc
2171     truncf
2172 "
2173
2174 SYSTEM_FEATURES="
2175     dos_paths
2176     libc_msvcrt
2177     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2178     section_data_rel_ro
2179     threads
2180     uwp
2181     winrt
2182 "
2183
2184 SYSTEM_FUNCS="
2185     access
2186     aligned_malloc
2187     arc4random
2188     clock_gettime
2189     closesocket
2190     CommandLineToArgvW
2191     fcntl
2192     getaddrinfo
2193     gethrtime
2194     getopt
2195     GetProcessAffinityMask
2196     GetProcessMemoryInfo
2197     GetProcessTimes
2198     getrusage
2199     GetSystemTimeAsFileTime
2200     gettimeofday
2201     glob
2202     glXGetProcAddress
2203     gmtime_r
2204     inet_aton
2205     isatty
2206     kbhit
2207     localtime_r
2208     lstat
2209     lzo1x_999_compress
2210     mach_absolute_time
2211     MapViewOfFile
2212     memalign
2213     mkstemp
2214     mmap
2215     mprotect
2216     nanosleep
2217     PeekNamedPipe
2218     posix_memalign
2219     pthread_cancel
2220     sched_getaffinity
2221     SecItemImport
2222     SetConsoleTextAttribute
2223     SetConsoleCtrlHandler
2224     setmode
2225     setrlimit
2226     Sleep
2227     strerror_r
2228     sysconf
2229     sysctl
2230     usleep
2231     UTGetOSTypeFromString
2232     VirtualAlloc
2233     wglGetProcAddress
2234 "
2235
2236 SYSTEM_LIBRARIES="
2237     bcrypt
2238     vaapi_drm
2239     vaapi_x11
2240     vdpau_x11
2241 "
2242
2243 TOOLCHAIN_FEATURES="
2244     as_arch_directive
2245     as_dn_directive
2246     as_fpu_directive
2247     as_func
2248     as_object_arch
2249     asm_mod_q
2250     blocks_extension
2251     ebp_available
2252     ebx_available
2253     gnu_as
2254     gnu_windres
2255     ibm_asm
2256     inline_asm_direct_symbol_refs
2257     inline_asm_labels
2258     inline_asm_nonlocal_labels
2259     pragma_deprecated
2260     rsync_contimeout
2261     symver_asm_label
2262     symver_gnu_asm
2263     vfp_args
2264     xform_asm
2265     xmm_clobbers
2266 "
2267
2268 TYPES_LIST="
2269     kCMVideoCodecType_HEVC
2270     kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
2271     kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
2272     kCVImageBufferTransferFunction_ITU_R_2100_HLG
2273     kCVImageBufferTransferFunction_Linear
2274     socklen_t
2275     struct_addrinfo
2276     struct_group_source_req
2277     struct_ip_mreq_source
2278     struct_ipv6_mreq
2279     struct_msghdr_msg_flags
2280     struct_pollfd
2281     struct_rusage_ru_maxrss
2282     struct_sctp_event_subscribe
2283     struct_sockaddr_in6
2284     struct_sockaddr_sa_len
2285     struct_sockaddr_storage
2286     struct_stat_st_mtim_tv_nsec
2287     struct_v4l2_frmivalenum_discrete
2288 "
2289
2290 HAVE_LIST="
2291     $ARCH_EXT_LIST
2292     $(add_suffix _external $ARCH_EXT_LIST)
2293     $(add_suffix _inline   $ARCH_EXT_LIST)
2294     $ARCH_FEATURES
2295     $BUILTIN_LIST
2296     $COMPLEX_FUNCS
2297     $HAVE_LIST_CMDLINE
2298     $HAVE_LIST_PUB
2299     $HEADERS_LIST
2300     $INTRINSICS_LIST
2301     $MATH_FUNCS
2302     $SYSTEM_FEATURES
2303     $SYSTEM_FUNCS
2304     $SYSTEM_LIBRARIES
2305     $THREADS_LIST
2306     $TOOLCHAIN_FEATURES
2307     $TYPES_LIST
2308     makeinfo
2309     makeinfo_html
2310     opencl_d3d11
2311     opencl_drm_arm
2312     opencl_drm_beignet
2313     opencl_dxva2
2314     opencl_vaapi_beignet
2315     opencl_vaapi_intel_media
2316     perl
2317     pod2man
2318     texi2html
2319 "
2320
2321 # options emitted with CONFIG_ prefix but not available on the command line
2322 CONFIG_EXTRA="
2323     aandcttables
2324     ac3dsp
2325     adts_header
2326     audio_frame_queue
2327     audiodsp
2328     blockdsp
2329     bswapdsp
2330     cabac
2331     cbs
2332     cbs_av1
2333     cbs_h264
2334     cbs_h265
2335     cbs_jpeg
2336     cbs_mpeg2
2337     cbs_vp9
2338     dirac_parse
2339     dnn
2340     dvprofile
2341     exif
2342     faandct
2343     faanidct
2344     fdctdsp
2345     flacdsp
2346     fmtconvert
2347     frame_thread_encoder
2348     g722dsp
2349     golomb
2350     gplv3
2351     h263dsp
2352     h264chroma
2353     h264dsp
2354     h264parse
2355     h264pred
2356     h264qpel
2357     hevcparse
2358     hpeldsp
2359     huffman
2360     huffyuvdsp
2361     huffyuvencdsp
2362     idctdsp
2363     iirfilter
2364     mdct15
2365     intrax8
2366     iso_media
2367     ividsp
2368     jpegtables
2369     lgplv3
2370     libx262
2371     llauddsp
2372     llviddsp
2373     llvidencdsp
2374     lpc
2375     lzf
2376     me_cmp
2377     mpeg_er
2378     mpegaudio
2379     mpegaudiodsp
2380     mpegaudioheader
2381     mpegvideo
2382     mpegvideoenc
2383     mss34dsp
2384     pixblockdsp
2385     qpeldsp
2386     qsv
2387     qsvdec
2388     qsvenc
2389     qsvvpp
2390     rangecoder
2391     riffdec
2392     riffenc
2393     rtpdec
2394     rtpenc_chain
2395     rv34dsp
2396     scene_sad
2397     sinewin
2398     snappy
2399     srtp
2400     startcode
2401     texturedsp
2402     texturedspenc
2403     tpeldsp
2404     vaapi_1
2405     vaapi_encode
2406     vc1dsp
2407     videodsp
2408     vp3dsp
2409     vp56dsp
2410     vp8dsp
2411     wma_freqs
2412     wmv2dsp
2413 "
2414
2415 CMDLINE_SELECT="
2416     $ARCH_EXT_LIST
2417     $CONFIG_LIST
2418     $HAVE_LIST_CMDLINE
2419     $THREADS_LIST
2420     asm
2421     cross_compile
2422     debug
2423     extra_warnings
2424     logging
2425     lto
2426     optimizations
2427     rpath
2428     stripping
2429 "
2430
2431 PATHS_LIST="
2432     bindir
2433     datadir
2434     docdir
2435     incdir
2436     libdir
2437     mandir
2438     pkgconfigdir
2439     prefix
2440     shlibdir
2441     install_name_dir
2442 "
2443
2444 CMDLINE_SET="
2445     $PATHS_LIST
2446     ar
2447     arch
2448     as
2449     assert_level
2450     build_suffix
2451     cc
2452     objcc
2453     cpu
2454     cross_prefix
2455     custom_allocator
2456     cxx
2457     dep_cc
2458     doxygen
2459     env
2460     extra_version
2461     gas
2462     host_cc
2463     host_cflags
2464     host_extralibs
2465     host_ld
2466     host_ldflags
2467     host_os
2468     ignore_tests
2469     install
2470     ld
2471     ln_s
2472     logfile
2473     malloc_prefix
2474     nm
2475     optflags
2476     nvcc
2477     nvccflags
2478     pkg_config
2479     pkg_config_flags
2480     progs_suffix
2481     random_seed
2482     ranlib
2483     samples
2484     strip
2485     sws_max_filter_size
2486     sysinclude
2487     sysroot
2488     target_exec
2489     target_os
2490     target_path
2491     target_samples
2492     tempprefix
2493     toolchain
2494     valgrind
2495     windres
2496     x86asmexe
2497 "
2498
2499 CMDLINE_APPEND="
2500     extra_cflags
2501     extra_cxxflags
2502     extra_objcflags
2503     host_cppflags
2504 "
2505
2506 # code dependency declarations
2507
2508 # architecture extensions
2509
2510 armv5te_deps="arm"
2511 armv6_deps="arm"
2512 armv6t2_deps="arm"
2513 armv8_deps="aarch64"
2514 neon_deps_any="aarch64 arm"
2515 intrinsics_neon_deps="neon"
2516 vfp_deps_any="aarch64 arm"
2517 vfpv3_deps="vfp"
2518 setend_deps="arm"
2519
2520 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2521
2522 altivec_deps="ppc"
2523 dcbzl_deps="ppc"
2524 ldbrx_deps="ppc"
2525 ppc4xx_deps="ppc"
2526 vsx_deps="altivec"
2527 power8_deps="vsx"
2528
2529 loongson2_deps="mips"
2530 loongson3_deps="mips"
2531 mips32r2_deps="mips"
2532 mips32r5_deps="mips"
2533 mips32r6_deps="mips"
2534 mips64r2_deps="mips"
2535 mips64r6_deps="mips"
2536 mipsfpu_deps="mips"
2537 mipsdsp_deps="mips"
2538 mipsdspr2_deps="mips"
2539 mmi_deps="mips"
2540 msa_deps="mipsfpu"
2541 msa2_deps="msa"
2542
2543 cpunop_deps="i686"
2544 x86_64_select="i686"
2545 x86_64_suggest="fast_cmov"
2546
2547 amd3dnow_deps="mmx"
2548 amd3dnowext_deps="amd3dnow"
2549 i686_deps="x86"
2550 mmx_deps="x86"
2551 mmxext_deps="mmx"
2552 sse_deps="mmxext"
2553 sse2_deps="sse"
2554 sse3_deps="sse2"
2555 ssse3_deps="sse3"
2556 sse4_deps="ssse3"
2557 sse42_deps="sse4"
2558 aesni_deps="sse42"
2559 avx_deps="sse42"
2560 xop_deps="avx"
2561 fma3_deps="avx"
2562 fma4_deps="avx"
2563 avx2_deps="avx"
2564 avx512_deps="avx2"
2565
2566 mmx_external_deps="x86asm"
2567 mmx_inline_deps="inline_asm x86"
2568 mmx_suggest="mmx_external mmx_inline"
2569
2570 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2571     eval dep=\$${ext}_deps
2572     eval ${ext}_external_deps='"${dep}_external"'
2573     eval ${ext}_inline_deps='"${dep}_inline"'
2574     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2575 done
2576
2577 aligned_stack_if_any="aarch64 ppc x86"
2578 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2579 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2580 fast_unaligned_if_any="aarch64 ppc x86"
2581 simd_align_16_if_any="altivec neon sse"
2582 simd_align_32_if_any="avx"
2583 simd_align_64_if_any="avx512"
2584
2585 # system capabilities
2586 linux_perf_deps="linux_perf_event_h"
2587 symver_if_any="symver_asm_label symver_gnu_asm"
2588 valgrind_backtrace_conflict="optimizations"
2589 valgrind_backtrace_deps="valgrind_valgrind_h"
2590
2591 # threading support
2592 atomics_gcc_if="sync_val_compare_and_swap"
2593 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2594 atomics_win32_if="MemoryBarrier"
2595 atomics_native_if_any="$ATOMICS_LIST"
2596 w32threads_deps="atomics_native"
2597 threads_if_any="$THREADS_LIST"
2598
2599 # subsystems
2600 cbs_av1_select="cbs"
2601 cbs_h264_select="cbs"
2602 cbs_h265_select="cbs"
2603 cbs_jpeg_select="cbs"
2604 cbs_mpeg2_select="cbs"
2605 cbs_vp9_select="cbs"
2606 dct_select="rdft"
2607 dirac_parse_select="golomb"
2608 dnn_suggest="libtensorflow"
2609 error_resilience_select="me_cmp"
2610 faandct_deps="faan"
2611 faandct_select="fdctdsp"
2612 faanidct_deps="faan"
2613 faanidct_select="idctdsp"
2614 h264dsp_select="startcode"
2615 hevcparse_select="golomb"
2616 frame_thread_encoder_deps="encoders threads"
2617 intrax8_select="blockdsp idctdsp"
2618 mdct_select="fft"
2619 mdct15_select="fft"
2620 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2621 mpeg_er_select="error_resilience"
2622 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2623 mpegaudiodsp_select="dct"
2624 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2625 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2626 vc1dsp_select="h264chroma qpeldsp startcode"
2627 rdft_select="fft"
2628
2629 # decoders / encoders
2630 aac_decoder_select="adts_header mdct15 mdct sinewin"
2631 aac_fixed_decoder_select="adts_header mdct sinewin"
2632 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2633 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2634 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2635 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2636 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2637 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2638 adpcm_g722_decoder_select="g722dsp"
2639 adpcm_g722_encoder_select="g722dsp"
2640 aic_decoder_select="golomb idctdsp"
2641 alac_encoder_select="lpc"
2642 als_decoder_select="bswapdsp"
2643 amrnb_decoder_select="lsp"
2644 amrwb_decoder_select="lsp"
2645 amv_decoder_select="sp5x_decoder exif"
2646 amv_encoder_select="jpegtables mpegvideoenc"
2647 ape_decoder_select="bswapdsp llauddsp"
2648 apng_decoder_deps="zlib"
2649 apng_encoder_deps="zlib"
2650 apng_encoder_select="llvidencdsp"
2651 aptx_decoder_select="audio_frame_queue"
2652 aptx_encoder_select="audio_frame_queue"
2653 aptx_hd_decoder_select="audio_frame_queue"
2654 aptx_hd_encoder_select="audio_frame_queue"
2655 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2656 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2657 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2658 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2659 atrac1_decoder_select="mdct sinewin"
2660 atrac3_decoder_select="mdct"
2661 atrac3p_decoder_select="mdct sinewin"
2662 atrac9_decoder_select="mdct"
2663 avrn_decoder_select="exif jpegtables"
2664 bink_decoder_select="blockdsp hpeldsp"
2665 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2666 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2667 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2668 clearvideo_decoder_select="idctdsp"
2669 cllc_decoder_select="bswapdsp"
2670 comfortnoise_encoder_select="lpc"
2671 cook_decoder_select="audiodsp mdct sinewin"
2672 cscd_decoder_select="lzo"
2673 cscd_decoder_suggest="zlib"
2674 dca_decoder_select="mdct"
2675 dds_decoder_select="texturedsp"
2676 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2677 dnxhd_decoder_select="blockdsp idctdsp"
2678 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2679 dolby_e_decoder_select="mdct"
2680 dvvideo_decoder_select="dvprofile idctdsp"
2681 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2682 dxa_decoder_deps="zlib"
2683 dxv_decoder_select="lzf texturedsp"
2684 eac3_decoder_select="ac3_decoder"
2685 eac3_encoder_select="ac3_encoder"
2686 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2687 eatgq_decoder_select="aandcttables"
2688 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2689 exr_decoder_deps="zlib"
2690 ffv1_decoder_select="rangecoder"
2691 ffv1_encoder_select="rangecoder"
2692 ffvhuff_decoder_select="huffyuv_decoder"
2693 ffvhuff_encoder_select="huffyuv_encoder"
2694 fic_decoder_select="golomb"
2695 flac_decoder_select="flacdsp"
2696 flac_encoder_select="bswapdsp flacdsp lpc"
2697 flashsv2_decoder_deps="zlib"
2698 flashsv2_encoder_deps="zlib"
2699 flashsv_decoder_deps="zlib"
2700 flashsv_encoder_deps="zlib"
2701 flv_decoder_select="h263_decoder"
2702 flv_encoder_select="h263_encoder"
2703 fourxm_decoder_select="blockdsp bswapdsp"
2704 fraps_decoder_select="bswapdsp huffman"
2705 g2m_decoder_deps="zlib"
2706 g2m_decoder_select="blockdsp idctdsp jpegtables"
2707 g729_decoder_select="audiodsp"
2708 h261_decoder_select="mpegvideo"
2709 h261_encoder_select="mpegvideoenc"
2710 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2711 h263_encoder_select="h263dsp mpegvideoenc"
2712 h263i_decoder_select="h263_decoder"
2713 h263p_decoder_select="h263_decoder"
2714 h263p_encoder_select="h263_encoder"
2715 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2716 h264_decoder_suggest="error_resilience"
2717 hap_decoder_select="snappy texturedsp"
2718 hap_encoder_deps="libsnappy"
2719 hap_encoder_select="texturedspenc"
2720 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2721 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2722 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2723 hymt_decoder_select="huffyuv_decoder"
2724 iac_decoder_select="imc_decoder"
2725 imc_decoder_select="bswapdsp fft mdct sinewin"
2726 imm5_decoder_select="h264_decoder hevc_decoder"
2727 indeo3_decoder_select="hpeldsp"
2728 indeo4_decoder_select="ividsp"
2729 indeo5_decoder_select="ividsp"
2730 interplay_video_decoder_select="hpeldsp"
2731 jpegls_decoder_select="mjpeg_decoder"
2732 jv_decoder_select="blockdsp"
2733 lagarith_decoder_select="llviddsp"
2734 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2735 lscr_decoder_deps="zlib"
2736 magicyuv_decoder_select="llviddsp"
2737 magicyuv_encoder_select="llvidencdsp"
2738 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2739 metasound_decoder_select="lsp mdct sinewin"
2740 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2741 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2742 mjpeg_encoder_select="jpegtables mpegvideoenc"
2743 mjpegb_decoder_select="mjpeg_decoder"
2744 mlp_decoder_select="mlp_parser"
2745 mlp_encoder_select="lpc audio_frame_queue"
2746 motionpixels_decoder_select="bswapdsp"
2747 mp1_decoder_select="mpegaudio"
2748 mp1float_decoder_select="mpegaudio"
2749 mp2_decoder_select="mpegaudio"
2750 mp2float_decoder_select="mpegaudio"
2751 mp3_decoder_select="mpegaudio"
2752 mp3adu_decoder_select="mpegaudio"
2753 mp3adufloat_decoder_select="mpegaudio"
2754 mp3float_decoder_select="mpegaudio"
2755 mp3on4_decoder_select="mpegaudio"
2756 mp3on4float_decoder_select="mpegaudio"
2757 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2758 mpc8_decoder_select="mpegaudiodsp"
2759 mpegvideo_decoder_select="mpegvideo"
2760 mpeg1video_decoder_select="mpegvideo"
2761 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2762 mpeg2video_decoder_select="mpegvideo"
2763 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2764 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2765 mpeg4_encoder_select="h263_encoder"
2766 msa1_decoder_select="mss34dsp"
2767 mscc_decoder_deps="zlib"
2768 msmpeg4v1_decoder_select="h263_decoder"
2769 msmpeg4v2_decoder_select="h263_decoder"
2770 msmpeg4v2_encoder_select="h263_encoder"
2771 msmpeg4v3_decoder_select="h263_decoder"
2772 msmpeg4v3_encoder_select="h263_encoder"
2773 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2774 mts2_decoder_select="mss34dsp"
2775 mwsc_decoder_deps="zlib"
2776 mxpeg_decoder_select="mjpeg_decoder"
2777 nellymoser_decoder_select="mdct sinewin"
2778 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2779 nuv_decoder_select="idctdsp lzo"
2780 on2avc_decoder_select="mdct"
2781 opus_decoder_deps="swresample"
2782 opus_decoder_select="mdct15"
2783 opus_encoder_select="audio_frame_queue mdct15"
2784 png_decoder_deps="zlib"
2785 png_encoder_deps="zlib"
2786 png_encoder_select="llvidencdsp"
2787 prores_decoder_select="blockdsp idctdsp"
2788 prores_encoder_select="fdctdsp"
2789 qcelp_decoder_select="lsp"
2790 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2791 ra_144_decoder_select="audiodsp"
2792 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2793 ralf_decoder_select="golomb"
2794 rasc_decoder_deps="zlib"
2795 rawvideo_decoder_select="bswapdsp"
2796 rscc_decoder_deps="zlib"
2797 rtjpeg_decoder_select="me_cmp"
2798 rv10_decoder_select="h263_decoder"
2799 rv10_encoder_select="h263_encoder"
2800 rv20_decoder_select="h263_decoder"
2801 rv20_encoder_select="h263_encoder"
2802 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2803 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2804 screenpresso_decoder_deps="zlib"
2805 shorten_decoder_select="bswapdsp"
2806 sipr_decoder_select="lsp"
2807 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2808 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2809 sonic_decoder_select="golomb rangecoder"
2810 sonic_encoder_select="golomb rangecoder"
2811 sonic_ls_encoder_select="golomb rangecoder"
2812 sp5x_decoder_select="mjpeg_decoder"
2813 speedhq_decoder_select="mpegvideo"
2814 srgc_decoder_deps="zlib"
2815 svq1_decoder_select="hpeldsp"
2816 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2817 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2818 svq3_decoder_suggest="zlib"
2819 tak_decoder_select="audiodsp"
2820 tdsc_decoder_deps="zlib"
2821 tdsc_decoder_select="mjpeg_decoder"
2822 theora_decoder_select="vp3_decoder"
2823 thp_decoder_select="mjpeg_decoder"
2824 tiff_decoder_select="mjpeg_decoder"
2825 tiff_decoder_suggest="zlib lzma"
2826 tiff_encoder_suggest="zlib"
2827 truehd_decoder_select="mlp_parser"
2828 truehd_encoder_select="lpc audio_frame_queue"
2829 truemotion2_decoder_select="bswapdsp"
2830 truespeech_decoder_select="bswapdsp"
2831 tscc_decoder_deps="zlib"
2832 twinvq_decoder_select="mdct lsp sinewin"
2833 txd_decoder_select="texturedsp"
2834 utvideo_decoder_select="bswapdsp llviddsp"
2835 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2836 vble_decoder_select="llviddsp"
2837 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2838 vc1image_decoder_select="vc1_decoder"
2839 vorbis_decoder_select="mdct"
2840 vorbis_encoder_select="audio_frame_queue mdct"
2841 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2842 vp4_decoder_select="vp3_decoder"
2843 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2844 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2845 vp6a_decoder_select="vp6_decoder"
2846 vp6f_decoder_select="vp6_decoder"
2847 vp7_decoder_select="h264pred videodsp vp8dsp"
2848 vp8_decoder_select="h264pred videodsp vp8dsp"
2849 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2850 wcmv_decoder_deps="zlib"
2851 webp_decoder_select="vp8_decoder exif"
2852 wmalossless_decoder_select="llauddsp"
2853 wmapro_decoder_select="mdct sinewin wma_freqs"
2854 wmav1_decoder_select="mdct sinewin wma_freqs"
2855 wmav1_encoder_select="mdct sinewin wma_freqs"
2856 wmav2_decoder_select="mdct sinewin wma_freqs"
2857 wmav2_encoder_select="mdct sinewin wma_freqs"
2858 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2859 wmv1_decoder_select="h263_decoder"
2860 wmv1_encoder_select="h263_encoder"
2861 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2862 wmv2_encoder_select="h263_encoder wmv2dsp"
2863 wmv3_decoder_select="vc1_decoder"
2864 wmv3image_decoder_select="wmv3_decoder"
2865 xma1_decoder_select="wmapro_decoder"
2866 xma2_decoder_select="wmapro_decoder"
2867 zerocodec_decoder_deps="zlib"
2868 zlib_decoder_deps="zlib"
2869 zlib_encoder_deps="zlib"
2870 zmbv_decoder_deps="zlib"
2871 zmbv_encoder_deps="zlib"
2872
2873 # hardware accelerators
2874 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2875 cuda_deps="ffnvcodec"
2876 cuvid_deps="ffnvcodec"
2877 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2878 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2879 ffnvcodec_deps_any="libdl LoadLibrary"
2880 nvdec_deps="ffnvcodec"
2881 vaapi_x11_deps="xlib"
2882 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2883 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2884 xvmc_deps="X11_extensions_XvMClib_h"
2885
2886 h263_vaapi_hwaccel_deps="vaapi"
2887 h263_vaapi_hwaccel_select="h263_decoder"
2888 h263_videotoolbox_hwaccel_deps="videotoolbox"
2889 h263_videotoolbox_hwaccel_select="h263_decoder"
2890 h264_d3d11va_hwaccel_deps="d3d11va"
2891 h264_d3d11va_hwaccel_select="h264_decoder"
2892 h264_d3d11va2_hwaccel_deps="d3d11va"
2893 h264_d3d11va2_hwaccel_select="h264_decoder"
2894 h264_dxva2_hwaccel_deps="dxva2"
2895 h264_dxva2_hwaccel_select="h264_decoder"
2896 h264_nvdec_hwaccel_deps="nvdec"
2897 h264_nvdec_hwaccel_select="h264_decoder"
2898 h264_vaapi_hwaccel_deps="vaapi"
2899 h264_vaapi_hwaccel_select="h264_decoder"
2900 h264_vdpau_hwaccel_deps="vdpau"
2901 h264_vdpau_hwaccel_select="h264_decoder"
2902 h264_videotoolbox_hwaccel_deps="videotoolbox"
2903 h264_videotoolbox_hwaccel_select="h264_decoder"
2904 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2905 hevc_d3d11va_hwaccel_select="hevc_decoder"
2906 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2907 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2908 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2909 hevc_dxva2_hwaccel_select="hevc_decoder"
2910 hevc_nvdec_hwaccel_deps="nvdec"
2911 hevc_nvdec_hwaccel_select="hevc_decoder"
2912 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2913 hevc_vaapi_hwaccel_select="hevc_decoder"
2914 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2915 hevc_vdpau_hwaccel_select="hevc_decoder"
2916 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2917 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2918 mjpeg_nvdec_hwaccel_deps="nvdec"
2919 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2920 mjpeg_vaapi_hwaccel_deps="vaapi"
2921 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2922 mpeg_xvmc_hwaccel_deps="xvmc"
2923 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2924 mpeg1_nvdec_hwaccel_deps="nvdec"
2925 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2926 mpeg1_vdpau_hwaccel_deps="vdpau"
2927 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2928 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2929 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2930 mpeg1_xvmc_hwaccel_deps="xvmc"
2931 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2932 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2933 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2934 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2935 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2936 mpeg2_dxva2_hwaccel_deps="dxva2"
2937 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2938 mpeg2_nvdec_hwaccel_deps="nvdec"
2939 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2940 mpeg2_vaapi_hwaccel_deps="vaapi"
2941 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2942 mpeg2_vdpau_hwaccel_deps="vdpau"
2943 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2944 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2945 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2946 mpeg2_xvmc_hwaccel_deps="xvmc"
2947 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2948 mpeg4_nvdec_hwaccel_deps="nvdec"
2949 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2950 mpeg4_vaapi_hwaccel_deps="vaapi"
2951 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2952 mpeg4_vdpau_hwaccel_deps="vdpau"
2953 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2954 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2955 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2956 vc1_d3d11va_hwaccel_deps="d3d11va"
2957 vc1_d3d11va_hwaccel_select="vc1_decoder"
2958 vc1_d3d11va2_hwaccel_deps="d3d11va"
2959 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2960 vc1_dxva2_hwaccel_deps="dxva2"
2961 vc1_dxva2_hwaccel_select="vc1_decoder"
2962 vc1_nvdec_hwaccel_deps="nvdec"
2963 vc1_nvdec_hwaccel_select="vc1_decoder"
2964 vc1_vaapi_hwaccel_deps="vaapi"
2965 vc1_vaapi_hwaccel_select="vc1_decoder"
2966 vc1_vdpau_hwaccel_deps="vdpau"
2967 vc1_vdpau_hwaccel_select="vc1_decoder"
2968 vp8_nvdec_hwaccel_deps="nvdec"
2969 vp8_nvdec_hwaccel_select="vp8_decoder"
2970 vp8_vaapi_hwaccel_deps="vaapi"
2971 vp8_vaapi_hwaccel_select="vp8_decoder"
2972 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2973 vp9_d3d11va_hwaccel_select="vp9_decoder"
2974 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2975 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2976 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2977 vp9_dxva2_hwaccel_select="vp9_decoder"
2978 vp9_nvdec_hwaccel_deps="nvdec"
2979 vp9_nvdec_hwaccel_select="vp9_decoder"
2980 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2981 vp9_vaapi_hwaccel_select="vp9_decoder"
2982 vp9_vdpau_hwaccel_deps="vdpau VdpPictureInfoVP9"
2983 vp9_vdpau_hwaccel_select="vp9_decoder"
2984 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2985 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2986 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2987 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2988 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2989 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2990
2991 # hardware-accelerated codecs
2992 omx_deps="libdl pthreads"
2993 omx_rpi_select="omx"
2994 qsv_deps="libmfx"
2995 qsvdec_select="qsv"
2996 qsvenc_select="qsv"
2997 qsvvpp_select="qsv"
2998 vaapi_encode_deps="vaapi"
2999 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
3000
3001 hwupload_cuda_filter_deps="ffnvcodec"
3002 scale_npp_filter_deps="ffnvcodec libnpp"
3003 scale_cuda_filter_deps="ffnvcodec"
3004 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3005 thumbnail_cuda_filter_deps="ffnvcodec"
3006 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3007 transpose_npp_filter_deps="ffnvcodec libnpp"
3008
3009 amf_deps_any="libdl LoadLibrary"
3010 nvenc_deps="ffnvcodec"
3011 nvenc_deps_any="libdl LoadLibrary"
3012 nvenc_encoder_deps="nvenc"
3013
3014 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3015 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3016 h264_amf_encoder_deps="amf"
3017 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3018 h264_cuvid_decoder_deps="cuvid"
3019 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3020 h264_mediacodec_decoder_deps="mediacodec"
3021 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3022 h264_mmal_decoder_deps="mmal"
3023 h264_nvenc_encoder_deps="nvenc"
3024 h264_omx_encoder_deps="omx"
3025 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3026 h264_qsv_encoder_select="qsvenc"
3027 h264_rkmpp_decoder_deps="rkmpp"
3028 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3029 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3030 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3031 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3032 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3033 hevc_amf_encoder_deps="amf"
3034 hevc_cuvid_decoder_deps="cuvid"
3035 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3036 hevc_mediacodec_decoder_deps="mediacodec"
3037 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3038 hevc_nvenc_encoder_deps="nvenc"
3039 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3040 hevc_qsv_encoder_select="hevcparse qsvenc"
3041 hevc_rkmpp_decoder_deps="rkmpp"
3042 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3043 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3044 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3045 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3046 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3047 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3048 mjpeg_cuvid_decoder_deps="cuvid"
3049 mjpeg_qsv_decoder_select="qsvdec"
3050 mjpeg_qsv_encoder_deps="libmfx"
3051 mjpeg_qsv_encoder_select="qsvenc"
3052 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3053 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3054 mpeg1_cuvid_decoder_deps="cuvid"
3055 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3056 mpeg2_crystalhd_decoder_select="crystalhd"
3057 mpeg2_cuvid_decoder_deps="cuvid"
3058 mpeg2_mmal_decoder_deps="mmal"
3059 mpeg2_mediacodec_decoder_deps="mediacodec"
3060 mpeg2_qsv_decoder_select="qsvdec"
3061 mpeg2_qsv_encoder_select="qsvenc"
3062 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3063 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3064 mpeg4_crystalhd_decoder_select="crystalhd"
3065 mpeg4_cuvid_decoder_deps="cuvid"
3066 mpeg4_mediacodec_decoder_deps="mediacodec"
3067 mpeg4_mmal_decoder_deps="mmal"
3068 mpeg4_omx_encoder_deps="omx"
3069 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3070 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3071 msmpeg4_crystalhd_decoder_select="crystalhd"
3072 nvenc_h264_encoder_select="h264_nvenc_encoder"
3073 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3074 vc1_crystalhd_decoder_select="crystalhd"
3075 vc1_cuvid_decoder_deps="cuvid"
3076 vc1_mmal_decoder_deps="mmal"
3077 vc1_qsv_decoder_select="qsvdec"
3078 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3079 vp8_cuvid_decoder_deps="cuvid"
3080 vp8_mediacodec_decoder_deps="mediacodec"
3081 vp8_qsv_decoder_select="qsvdec"
3082 vp8_rkmpp_decoder_deps="rkmpp"
3083 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3084 vp8_vaapi_encoder_select="vaapi_encode"
3085 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3086 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3087 vp9_cuvid_decoder_deps="cuvid"
3088 vp9_mediacodec_decoder_deps="mediacodec"
3089 vp9_qsv_decoder_select="qsvdec"
3090 vp9_rkmpp_decoder_deps="rkmpp"
3091 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3092 vp9_vaapi_encoder_select="vaapi_encode"
3093 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3094 wmv3_crystalhd_decoder_select="crystalhd"
3095
3096 # parsers
3097 aac_parser_select="adts_header"
3098 av1_parser_select="cbs_av1"
3099 h264_parser_select="golomb h264dsp h264parse"
3100 hevc_parser_select="hevcparse"
3101 mpegaudio_parser_select="mpegaudioheader"
3102 mpegvideo_parser_select="mpegvideo"
3103 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3104 vc1_parser_select="vc1dsp"
3105
3106 # bitstream_filters
3107 aac_adtstoasc_bsf_select="adts_header"
3108 av1_frame_split_bsf_select="cbs_av1"
3109 av1_metadata_bsf_select="cbs_av1"
3110 eac3_core_bsf_select="ac3_parser"
3111 filter_units_bsf_select="cbs"
3112 h264_metadata_bsf_deps="const_nan"
3113 h264_metadata_bsf_select="cbs_h264"
3114 h264_redundant_pps_bsf_select="cbs_h264"
3115 hevc_metadata_bsf_select="cbs_h265"
3116 mjpeg2jpeg_bsf_select="jpegtables"
3117 mpeg2_metadata_bsf_select="cbs_mpeg2"
3118 trace_headers_bsf_select="cbs"
3119 vp9_metadata_bsf_select="cbs_vp9"
3120
3121 # external libraries
3122 aac_at_decoder_deps="audiotoolbox"
3123 aac_at_decoder_select="aac_adtstoasc_bsf"
3124 ac3_at_decoder_deps="audiotoolbox"
3125 ac3_at_decoder_select="ac3_parser"
3126 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3127 alac_at_decoder_deps="audiotoolbox"
3128 amr_nb_at_decoder_deps="audiotoolbox"
3129 avisynth_deps_any="libdl LoadLibrary"
3130 avisynth_demuxer_deps="avisynth"
3131 avisynth_demuxer_select="riffdec"
3132 eac3_at_decoder_deps="audiotoolbox"
3133 eac3_at_decoder_select="ac3_parser"
3134 gsm_ms_at_decoder_deps="audiotoolbox"
3135 ilbc_at_decoder_deps="audiotoolbox"
3136 mp1_at_decoder_deps="audiotoolbox"
3137 mp2_at_decoder_deps="audiotoolbox"
3138 mp3_at_decoder_deps="audiotoolbox"
3139 mp1_at_decoder_select="mpegaudioheader"
3140 mp2_at_decoder_select="mpegaudioheader"
3141 mp3_at_decoder_select="mpegaudioheader"
3142 pcm_alaw_at_decoder_deps="audiotoolbox"
3143 pcm_mulaw_at_decoder_deps="audiotoolbox"
3144 qdmc_at_decoder_deps="audiotoolbox"
3145 qdm2_at_decoder_deps="audiotoolbox"
3146 aac_at_encoder_deps="audiotoolbox"
3147 aac_at_encoder_select="audio_frame_queue"
3148 alac_at_encoder_deps="audiotoolbox"
3149 alac_at_encoder_select="audio_frame_queue"
3150 ilbc_at_encoder_deps="audiotoolbox"
3151 ilbc_at_encoder_select="audio_frame_queue"
3152 pcm_alaw_at_encoder_deps="audiotoolbox"
3153 pcm_alaw_at_encoder_select="audio_frame_queue"
3154 pcm_mulaw_at_encoder_deps="audiotoolbox"
3155 pcm_mulaw_at_encoder_select="audio_frame_queue"
3156 chromaprint_muxer_deps="chromaprint"
3157 h264_videotoolbox_encoder_deps="pthreads"
3158 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3159 hevc_videotoolbox_encoder_deps="pthreads"
3160 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3161 libaom_av1_decoder_deps="libaom"
3162 libaom_av1_encoder_deps="libaom"
3163 libaom_av1_encoder_select="extract_extradata_bsf"
3164 libaribb24_decoder_deps="libaribb24"
3165 libcelt_decoder_deps="libcelt"
3166 libcodec2_decoder_deps="libcodec2"
3167 libcodec2_encoder_deps="libcodec2"
3168 libdav1d_decoder_deps="libdav1d"
3169 libdavs2_decoder_deps="libdavs2"
3170 libfdk_aac_decoder_deps="libfdk_aac"
3171 libfdk_aac_encoder_deps="libfdk_aac"
3172 libfdk_aac_encoder_select="audio_frame_queue"
3173 libgme_demuxer_deps="libgme"
3174 libgsm_decoder_deps="libgsm"
3175 libgsm_encoder_deps="libgsm"
3176 libgsm_ms_decoder_deps="libgsm"
3177 libgsm_ms_encoder_deps="libgsm"
3178 libilbc_decoder_deps="libilbc"
3179 libilbc_encoder_deps="libilbc"
3180 libkvazaar_encoder_deps="libkvazaar"
3181 libmodplug_demuxer_deps="libmodplug"
3182 libmp3lame_encoder_deps="libmp3lame"
3183 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3184 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3185 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3186 libopencore_amrnb_encoder_select="audio_frame_queue"
3187 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3188 libopenh264_decoder_deps="libopenh264"
3189 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3190 libopenh264_encoder_deps="libopenh264"
3191 libopenjpeg_decoder_deps="libopenjpeg"
3192 libopenjpeg_encoder_deps="libopenjpeg"
3193 libopenmpt_demuxer_deps="libopenmpt"
3194 libopus_decoder_deps="libopus"
3195 libopus_encoder_deps="libopus"
3196 libopus_encoder_select="audio_frame_queue"
3197 librsvg_decoder_deps="librsvg"
3198 libshine_encoder_deps="libshine"
3199 libshine_encoder_select="audio_frame_queue"
3200 libspeex_decoder_deps="libspeex"
3201 libspeex_encoder_deps="libspeex"
3202 libspeex_encoder_select="audio_frame_queue"
3203 libtheora_encoder_deps="libtheora"
3204 libtwolame_encoder_deps="libtwolame"
3205 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3206 libvorbis_decoder_deps="libvorbis"
3207 libvorbis_encoder_deps="libvorbis libvorbisenc"
3208 libvorbis_encoder_select="audio_frame_queue"
3209 libvpx_vp8_decoder_deps="libvpx"
3210 libvpx_vp8_encoder_deps="libvpx"
3211 libvpx_vp9_decoder_deps="libvpx"
3212 libvpx_vp9_encoder_deps="libvpx"
3213 libwavpack_encoder_deps="libwavpack"
3214 libwavpack_encoder_select="audio_frame_queue"
3215 libwebp_encoder_deps="libwebp"
3216 libwebp_anim_encoder_deps="libwebp"
3217 libx262_encoder_deps="libx262"
3218 libx264_encoder_deps="libx264"
3219 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3220 libx264rgb_encoder_select="libx264_encoder"
3221 libx265_encoder_deps="libx265"
3222 libxavs_encoder_deps="libxavs"
3223 libxavs2_encoder_deps="libxavs2"
3224 libxvid_encoder_deps="libxvid"
3225 libzvbi_teletext_decoder_deps="libzvbi"
3226 vapoursynth_demuxer_deps="vapoursynth"
3227 videotoolbox_suggest="coreservices"
3228 videotoolbox_deps="corefoundation coremedia corevideo"
3229 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3230
3231 # demuxers / muxers
3232 ac3_demuxer_select="ac3_parser"
3233 aiff_muxer_select="iso_media"
3234 asf_demuxer_select="riffdec"
3235 asf_o_demuxer_select="riffdec"
3236 asf_muxer_select="riffenc"
3237 asf_stream_muxer_select="asf_muxer"
3238 avi_demuxer_select="iso_media riffdec exif"
3239 avi_muxer_select="riffenc"
3240 caf_demuxer_select="iso_media riffdec"
3241 caf_muxer_select="iso_media"
3242 dash_muxer_select="mp4_muxer"
3243 dash_demuxer_deps="libxml2"
3244 dirac_demuxer_select="dirac_parser"
3245 dts_demuxer_select="dca_parser"
3246 dtshd_demuxer_select="dca_parser"
3247 dv_demuxer_select="dvprofile"
3248 dv_muxer_select="dvprofile"
3249 dxa_demuxer_select="riffdec"
3250 eac3_demuxer_select="ac3_parser"
3251 f4v_muxer_select="mov_muxer"
3252 fifo_muxer_deps="threads"
3253 flac_demuxer_select="flac_parser"
3254 hds_muxer_select="flv_muxer"
3255 hls_muxer_select="mpegts_muxer"
3256 hls_muxer_suggest="gcrypt openssl"
3257 image2_alias_pix_demuxer_select="image2_demuxer"
3258 image2_brender_pix_demuxer_select="image2_demuxer"
3259 ipod_muxer_select="mov_muxer"
3260 ismv_muxer_select="mov_muxer"
3261 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3262 matroska_audio_muxer_select="matroska_muxer"
3263 matroska_demuxer_select="iso_media riffdec"
3264 matroska_demuxer_suggest="bzlib lzo zlib"
3265 matroska_muxer_select="iso_media riffenc"
3266 mmf_muxer_select="riffenc"
3267 mov_demuxer_select="iso_media riffdec"
3268 mov_demuxer_suggest="zlib"
3269 mov_muxer_select="iso_media riffenc rtpenc_chain"
3270 mp3_demuxer_select="mpegaudio_parser"
3271 mp3_muxer_select="mpegaudioheader"
3272 mp4_muxer_select="mov_muxer"
3273 mpegts_demuxer_select="iso_media"
3274 mpegts_muxer_select="adts_muxer latm_muxer"
3275 mpegtsraw_demuxer_select="mpegts_demuxer"
3276 mxf_muxer_select="golomb"
3277 mxf_d10_muxer_select="mxf_muxer"
3278 mxf_opatom_muxer_select="mxf_muxer"
3279 nut_muxer_select="riffenc"
3280 nuv_demuxer_select="riffdec"
3281 oga_muxer_select="ogg_muxer"
3282 ogg_demuxer_select="dirac_parse"
3283 ogv_muxer_select="ogg_muxer"
3284 opus_muxer_select="ogg_muxer"
3285 psp_muxer_select="mov_muxer"
3286 rtp_demuxer_select="sdp_demuxer"
3287 rtp_muxer_select="golomb"
3288 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3289 rtsp_demuxer_select="http_protocol rtpdec"
3290 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3291 sap_demuxer_select="sdp_demuxer"
3292 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3293 sdp_demuxer_select="rtpdec"
3294 smoothstreaming_muxer_select="ismv_muxer"
3295 spdif_demuxer_select="adts_header"
3296 spdif_muxer_select="adts_header"
3297 spx_muxer_select="ogg_muxer"
3298 swf_demuxer_suggest="zlib"
3299 tak_demuxer_select="tak_parser"
3300 tg2_muxer_select="mov_muxer"
3301 tgp_muxer_select="mov_muxer"
3302 vobsub_demuxer_select="mpegps_demuxer"
3303 w64_demuxer_select="wav_demuxer"
3304 w64_muxer_select="wav_muxer"
3305 wav_demuxer_select="riffdec"
3306 wav_muxer_select="riffenc"
3307 webm_muxer_select="iso_media riffenc"
3308 webm_dash_manifest_demuxer_select="matroska_demuxer"
3309 wtv_demuxer_select="mpegts_demuxer riffdec"
3310 wtv_muxer_select="mpegts_muxer riffenc"
3311 xmv_demuxer_select="riffdec"
3312 xwma_demuxer_select="riffdec"
3313
3314 # indevs / outdevs
3315 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3316 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3317 alsa_indev_deps="alsa"
3318 alsa_outdev_deps="alsa"
3319 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3320 avfoundation_indev_suggest="coregraphics applicationservices"
3321 avfoundation_indev_extralibs="-framework Foundation"
3322 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3323 caca_outdev_deps="libcaca"
3324 decklink_deps_any="libdl LoadLibrary"
3325 decklink_indev_deps="decklink threads"
3326 decklink_indev_extralibs="-lstdc++"
3327 decklink_outdev_deps="decklink threads"
3328 decklink_outdev_suggest="libklvanc"
3329 decklink_outdev_extralibs="-lstdc++"
3330 dshow_indev_deps="IBaseFilter"
3331 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3332 fbdev_indev_deps="linux_fb_h"
3333 fbdev_outdev_deps="linux_fb_h"
3334 gdigrab_indev_deps="CreateDIBSection"
3335 gdigrab_indev_extralibs="-lgdi32"
3336 gdigrab_indev_select="bmp_decoder"
3337 iec61883_indev_deps="libiec61883"
3338 jack_indev_deps="libjack"
3339 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3340 kmsgrab_indev_deps="libdrm"
3341 lavfi_indev_deps="avfilter"
3342 libcdio_indev_deps="libcdio"
3343 libdc1394_indev_deps="libdc1394"
3344 openal_indev_deps="openal"
3345 opengl_outdev_deps="opengl"
3346 opengl_outdev_suggest="sdl2"
3347 oss_indev_deps_any="sys_soundcard_h"
3348 oss_outdev_deps_any="sys_soundcard_h"
3349 pulse_indev_deps="libpulse"
3350 pulse_outdev_deps="libpulse"
3351 sdl2_outdev_deps="sdl2"
3352 sndio_indev_deps="sndio"
3353 sndio_outdev_deps="sndio"
3354 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3355 v4l2_indev_suggest="libv4l2"
3356 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3357 v4l2_outdev_suggest="libv4l2"
3358 vfwcap_indev_deps="vfw32 vfwcap_defines"
3359 xcbgrab_indev_deps="libxcb"
3360 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3361 xv_outdev_deps="xlib"
3362
3363 # protocols
3364 async_protocol_deps="threads"
3365 bluray_protocol_deps="libbluray"
3366 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3367 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3368 ffrtmpcrypt_protocol_select="tcp_protocol"
3369 ffrtmphttp_protocol_conflict="librtmp_protocol"
3370 ffrtmphttp_protocol_select="http_protocol"
3371 ftp_protocol_select="tcp_protocol"
3372 gopher_protocol_select="network"
3373 http_protocol_select="tcp_protocol"
3374 http_protocol_suggest="zlib"
3375 httpproxy_protocol_select="tcp_protocol"
3376 httpproxy_protocol_suggest="zlib"
3377 https_protocol_select="tls_protocol"
3378 https_protocol_suggest="zlib"
3379 icecast_protocol_select="http_protocol"
3380 mmsh_protocol_select="http_protocol"
3381 mmst_protocol_select="network"
3382 rtmp_protocol_conflict="librtmp_protocol"
3383 rtmp_protocol_select="tcp_protocol"
3384 rtmp_protocol_suggest="zlib"
3385 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3386 rtmpe_protocol_suggest="zlib"
3387 rtmps_protocol_conflict="librtmp_protocol"
3388 rtmps_protocol_select="tls_protocol"
3389 rtmps_protocol_suggest="zlib"
3390 rtmpt_protocol_select="ffrtmphttp_protocol"
3391 rtmpt_protocol_suggest="zlib"
3392 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3393 rtmpte_protocol_suggest="zlib"
3394 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3395 rtmpts_protocol_suggest="zlib"
3396 rtp_protocol_select="udp_protocol"
3397 schannel_conflict="openssl gnutls libtls mbedtls"
3398 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3399 sctp_protocol_select="network"
3400 securetransport_conflict="openssl gnutls libtls mbedtls"
3401 srtp_protocol_select="rtp_protocol srtp"
3402 tcp_protocol_select="network"
3403 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3404 tls_protocol_select="tcp_protocol"
3405 udp_protocol_select="network"
3406 udplite_protocol_select="network"
3407 unix_protocol_deps="sys_un_h"
3408 unix_protocol_select="network"
3409
3410 # external library protocols
3411 librtmp_protocol_deps="librtmp"
3412 librtmpe_protocol_deps="librtmp"
3413 librtmps_protocol_deps="librtmp"
3414 librtmpt_protocol_deps="librtmp"
3415 librtmpte_protocol_deps="librtmp"
3416 libsmbclient_protocol_deps="libsmbclient gplv3"
3417 libsrt_protocol_deps="libsrt"
3418 libsrt_protocol_select="network"
3419 libssh_protocol_deps="libssh"
3420 libtls_conflict="openssl gnutls mbedtls"
3421 libzmq_protocol_deps="libzmq"
3422 libzmq_protocol_select="network"
3423
3424 # filters
3425 afftdn_filter_deps="avcodec"
3426 afftdn_filter_select="fft"
3427 afftfilt_filter_deps="avcodec"
3428 afftfilt_filter_select="fft"
3429 afir_filter_deps="avcodec"
3430 afir_filter_select="fft"
3431 amovie_filter_deps="avcodec avformat"
3432 aresample_filter_deps="swresample"
3433 asr_filter_deps="pocketsphinx"
3434 ass_filter_deps="libass"
3435 atempo_filter_deps="avcodec"
3436 atempo_filter_select="rdft"
3437 avgblur_opencl_filter_deps="opencl"
3438 azmq_filter_deps="libzmq"
3439 blackframe_filter_deps="gpl"
3440 bm3d_filter_deps="avcodec"
3441 bm3d_filter_select="dct"
3442 boxblur_filter_deps="gpl"
3443 boxblur_opencl_filter_deps="opencl gpl"
3444 bs2b_filter_deps="libbs2b"
3445 colorkey_opencl_filter_deps="opencl"
3446 colormatrix_filter_deps="gpl"
3447 convolution_opencl_filter_deps="opencl"
3448 convolve_filter_deps="avcodec"
3449 convolve_filter_select="fft"
3450 coreimage_filter_deps="coreimage appkit"
3451 coreimage_filter_extralibs="-framework OpenGL"
3452 coreimagesrc_filter_deps="coreimage appkit"
3453 coreimagesrc_filter_extralibs="-framework OpenGL"
3454 cover_rect_filter_deps="avcodec avformat gpl"
3455 cropdetect_filter_deps="gpl"
3456 deconvolve_filter_deps="avcodec"
3457 deconvolve_filter_select="fft"
3458 deinterlace_qsv_filter_deps="libmfx"
3459 deinterlace_vaapi_filter_deps="vaapi"
3460 delogo_filter_deps="gpl"
3461 denoise_vaapi_filter_deps="vaapi"
3462 derain_filter_select="dnn"
3463 deshake_filter_select="pixelutils"
3464 deshake_opencl_filter_deps="opencl"
3465 dilation_opencl_filter_deps="opencl"
3466 drawtext_filter_deps="libfreetype"
3467 drawtext_filter_suggest="libfontconfig libfribidi"
3468 elbg_filter_deps="avcodec"
3469 eq_filter_deps="gpl"
3470 erosion_opencl_filter_deps="opencl"
3471 fftfilt_filter_deps="avcodec"
3472 fftfilt_filter_select="rdft"
3473 fftdnoiz_filter_deps="avcodec"
3474 fftdnoiz_filter_select="fft"
3475 find_rect_filter_deps="avcodec avformat gpl"
3476 firequalizer_filter_deps="avcodec"
3477 firequalizer_filter_select="rdft"
3478 flite_filter_deps="libflite"
3479 framerate_filter_select="scene_sad"
3480 freezedetect_filter_select="scene_sad"
3481 frei0r_filter_deps="frei0r libdl"
3482 frei0r_src_filter_deps="frei0r libdl"
3483 fspp_filter_deps="gpl"
3484 geq_filter_deps="gpl"
3485 histeq_filter_deps="gpl"
3486 hqdn3d_filter_deps="gpl"
3487 interlace_filter_deps="gpl"
3488 kerndeint_filter_deps="gpl"
3489 ladspa_filter_deps="ladspa libdl"
3490 lensfun_filter_deps="liblensfun version3"
3491 lv2_filter_deps="lv2"
3492 mcdeint_filter_deps="avcodec gpl"
3493 movie_filter_deps="avcodec avformat"
3494 mpdecimate_filter_deps="gpl"
3495 mpdecimate_filter_select="pixelutils"
3496 minterpolate_filter_select="scene_sad"
3497 mptestsrc_filter_deps="gpl"
3498 negate_filter_deps="lut_filter"
3499 nlmeans_opencl_filter_deps="opencl"
3500 nnedi_filter_deps="gpl"
3501 ocr_filter_deps="libtesseract"
3502 ocv_filter_deps="libopencv"
3503 openclsrc_filter_deps="opencl"
3504 overlay_opencl_filter_deps="opencl"
3505 overlay_qsv_filter_deps="libmfx"
3506 overlay_qsv_filter_select="qsvvpp"
3507 owdenoise_filter_deps="gpl"
3508 pan_filter_deps="swresample"
3509 perspective_filter_deps="gpl"
3510 phase_filter_deps="gpl"
3511 pp7_filter_deps="gpl"
3512 pp_filter_deps="gpl postproc"
3513 prewitt_opencl_filter_deps="opencl"
3514 procamp_vaapi_filter_deps="vaapi"
3515 program_opencl_filter_deps="opencl"
3516 pullup_filter_deps="gpl"
3517 removelogo_filter_deps="avcodec avformat swscale"
3518 repeatfields_filter_deps="gpl"
3519 resample_filter_deps="avresample"
3520 roberts_opencl_filter_deps="opencl"
3521 rubberband_filter_deps="librubberband"
3522 sab_filter_deps="gpl swscale"
3523 scale2ref_filter_deps="swscale"
3524 scale_filter_deps="swscale"
3525 scale_qsv_filter_deps="libmfx"
3526 select_filter_select="scene_sad"
3527 sharpness_vaapi_filter_deps="vaapi"
3528 showcqt_filter_deps="avcodec avformat swscale"
3529 showcqt_filter_suggest="libfontconfig libfreetype"
3530 showcqt_filter_select="fft"
3531 showfreqs_filter_deps="avcodec"
3532 showfreqs_filter_select="fft"
3533 showspectrum_filter_deps="avcodec"
3534 showspectrum_filter_select="fft"
3535 showspectrumpic_filter_deps="avcodec"
3536 showspectrumpic_filter_select="fft"
3537 signature_filter_deps="gpl avcodec avformat"
3538 smartblur_filter_deps="gpl swscale"
3539 sobel_opencl_filter_deps="opencl"
3540 sofalizer_filter_deps="libmysofa avcodec"
3541 sofalizer_filter_select="fft"
3542 spectrumsynth_filter_deps="avcodec"
3543 spectrumsynth_filter_select="fft"
3544 spp_filter_deps="gpl avcodec"
3545 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3546 sr_filter_deps="avformat swscale"
3547 sr_filter_select="dnn"
3548 stereo3d_filter_deps="gpl"
3549 subtitles_filter_deps="avformat avcodec libass"
3550 super2xsai_filter_deps="gpl"
3551 pixfmts_super2xsai_test_deps="super2xsai_filter"
3552 tinterlace_filter_deps="gpl"
3553 tinterlace_merge_test_deps="tinterlace_filter"
3554 tinterlace_pad_test_deps="tinterlace_filter"
3555 tonemap_filter_deps="const_nan"
3556 tonemap_opencl_filter_deps="opencl const_nan"
3557 transpose_opencl_filter_deps="opencl"
3558 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3559 unsharp_opencl_filter_deps="opencl"
3560 uspp_filter_deps="gpl avcodec"
3561 vaguedenoiser_filter_deps="gpl"
3562 vidstabdetect_filter_deps="libvidstab"
3563 vidstabtransform_filter_deps="libvidstab"
3564 libvmaf_filter_deps="libvmaf pthreads"
3565 zmq_filter_deps="libzmq"
3566 zoompan_filter_deps="swscale"
3567 zscale_filter_deps="libzimg const_nan"
3568 scale_vaapi_filter_deps="vaapi"
3569 vpp_qsv_filter_deps="libmfx"
3570 vpp_qsv_filter_select="qsvvpp"
3571 yadif_cuda_filter_deps="ffnvcodec"
3572 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3573
3574 # examples
3575 avio_dir_cmd_deps="avformat avutil"
3576 avio_reading_deps="avformat avcodec avutil"
3577 decode_audio_example_deps="avcodec avutil"
3578 decode_video_example_deps="avcodec avutil"
3579 demuxing_decoding_example_deps="avcodec avformat avutil"
3580 encode_audio_example_deps="avcodec avutil"
3581 encode_video_example_deps="avcodec avutil"
3582 extract_mvs_example_deps="avcodec avformat avutil"
3583 filter_audio_example_deps="avfilter avutil"
3584 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3585 filtering_video_example_deps="avfilter avcodec avformat avutil"
3586 http_multiclient_example_deps="avformat avutil fork"
3587 hw_decode_example_deps="avcodec avformat avutil"
3588 metadata_example_deps="avformat avutil"
3589 muxing_example_deps="avcodec avformat avutil swscale"
3590 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3591 remuxing_example_deps="avcodec avformat avutil"
3592 resampling_audio_example_deps="avutil swresample"
3593 scaling_video_example_deps="avutil swscale"
3594 transcode_aac_example_deps="avcodec avformat swresample"
3595 transcoding_example_deps="avfilter avcodec avformat avutil"
3596 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3597 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3598
3599 # EXTRALIBS_LIST
3600 cpu_init_extralibs="pthreads_extralibs"
3601 cws2fws_extralibs="zlib_extralibs"
3602
3603 # libraries, in any order
3604 avcodec_deps="avutil"
3605 avcodec_suggest="libm"
3606 avcodec_select="null_bsf"
3607 avdevice_deps="avformat avcodec avutil"
3608 avdevice_suggest="libm"
3609 avfilter_deps="avutil"
3610 avfilter_suggest="libm"
3611 avformat_deps="avcodec avutil"
3612 avformat_suggest="libm network zlib"
3613 avresample_deps="avutil"
3614 avresample_suggest="libm"
3615 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3616 postproc_deps="avutil gpl"
3617 postproc_suggest="libm"
3618 swresample_deps="avutil"
3619 swresample_suggest="libm libsoxr"
3620 swscale_deps="avutil"
3621 swscale_suggest="libm"
3622
3623 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3624 avfilter_extralibs="pthreads_extralibs"
3625 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3626
3627 # programs
3628 ffmpeg_deps="avcodec avfilter avformat"
3629 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3630                hflip_filter null_filter
3631                transpose_filter trim_filter vflip_filter"
3632 ffmpeg_suggest="ole32 psapi shell32"
3633 ffplay_deps="avcodec avformat swscale swresample sdl2"
3634 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3635 ffplay_suggest="shell32"
3636 ffprobe_deps="avcodec avformat"
3637 ffprobe_suggest="shell32"
3638
3639 # documentation
3640 podpages_deps="perl"
3641 manpages_deps="perl pod2man"
3642 htmlpages_deps="perl"
3643 htmlpages_deps_any="makeinfo_html texi2html"
3644 txtpages_deps="perl makeinfo"
3645 doc_deps_any="manpages htmlpages podpages txtpages"
3646
3647 # default parameters
3648
3649 logfile="ffbuild/config.log"
3650
3651 # installation paths
3652 prefix_default="/usr/local"
3653 bindir_default='${prefix}/bin'
3654 datadir_default='${prefix}/share/ffmpeg'
3655 docdir_default='${prefix}/share/doc/ffmpeg'
3656 incdir_default='${prefix}/include'
3657 libdir_default='${prefix}/lib'
3658 mandir_default='${prefix}/share/man'
3659
3660 # toolchain
3661 ar_default="ar"
3662 cc_default="gcc"
3663 cxx_default="g++"
3664 host_cc_default="gcc"
3665 doxygen_default="doxygen"
3666 install="install"
3667 ln_s_default="ln -s -f"
3668 nm_default="nm -g"
3669 pkg_config_default=pkg-config
3670 ranlib_default="ranlib"
3671 strip_default="strip"
3672 version_script='--version-script'
3673 objformat="elf32"
3674 x86asmexe_default="nasm"
3675 windres_default="windres"
3676 striptype="direct"
3677
3678 # OS
3679 target_os_default=$(tolower $(uname -s))
3680 host_os=$target_os_default
3681
3682 # machine
3683 if test "$target_os_default" = aix; then
3684     arch_default=$(uname -p)
3685     strip_default="strip -X32_64"
3686     nm_default="nm -g -X32_64"
3687 else
3688     arch_default=$(uname -m)
3689 fi
3690 cpu="generic"
3691 intrinsics="none"
3692
3693 # configurable options
3694 enable $PROGRAM_LIST
3695 enable $DOCUMENT_LIST
3696 enable $EXAMPLE_LIST
3697 enable $(filter_out avresample $LIBRARY_LIST)
3698 enable stripping
3699
3700 enable asm
3701 enable debug
3702 enable doc
3703 enable faan faandct faanidct
3704 enable optimizations
3705 enable runtime_cpudetect
3706 enable safe_bitstream_reader
3707 enable static
3708 enable swscale_alpha
3709 enable valgrind_backtrace
3710
3711 sws_max_filter_size_default=256
3712 set_default sws_max_filter_size
3713
3714 # internal components are enabled by default
3715 enable $EXTRALIBS_LIST
3716
3717 # Avoid external, non-system, libraries getting enabled by dependency resolution
3718 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3719
3720 # build settings
3721 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3722 LIBPREF="lib"
3723 LIBSUF=".a"
3724 FULLNAME='$(NAME)$(BUILDSUF)'
3725 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3726 SLIBPREF="lib"
3727 SLIBSUF=".so"
3728 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3729 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3730 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3731 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3732 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3733 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3734 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3735
3736 asflags_filter=echo
3737 cflags_filter=echo
3738 ldflags_filter=echo
3739
3740 AS_C='-c'
3741 AS_O='-o $@'
3742 CC_C='-c'
3743 CC_E='-E -o $@'
3744 CC_O='-o $@'
3745 CXX_C='-c'
3746 CXX_O='-o $@'
3747 OBJCC_C='-c'
3748 OBJCC_E='-E -o $@'
3749 OBJCC_O='-o $@'
3750 X86ASM_O='-o $@'
3751 LD_O='-o $@'
3752 LD_LIB='-l%'
3753 LD_PATH='-L'
3754 HOSTCC_C='-c'
3755 HOSTCC_E='-E -o $@'
3756 HOSTCC_O='-o $@'
3757 HOSTLD_O='-o $@'
3758 NVCC_C='-c'
3759 NVCC_O='-o $@'
3760
3761 host_extralibs='-lm'
3762 host_cflags_filter=echo
3763 host_ldflags_filter=echo
3764
3765 target_path='$(CURDIR)'
3766
3767 # since the object filename is not given with the -MM flag, the compiler
3768 # is only able to print the basename, and we must add the path ourselves
3769 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3770 DEPFLAGS='-MM'
3771
3772 mkdir -p ffbuild
3773
3774 # find source path
3775 if test -f configure; then
3776     source_path=.
3777 elif test -f src/configure; then
3778     source_path=src
3779 else
3780     source_path=$(cd $(dirname "$0"); pwd)
3781     case "$source_path" in
3782         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3783     esac
3784     test -e "$source_path/config.h" &&
3785         die "Out of tree builds are impossible with config.h in source dir."
3786 fi
3787
3788 for v in "$@"; do
3789     r=${v#*=}
3790     l=${v%"$r"}
3791     r=$(sh_quote "$r")
3792     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3793 done
3794
3795 find_things_extern(){
3796     thing=$1
3797     pattern=$2
3798     file=$source_path/$3
3799     out=${4:-$thing}
3800     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3801 }
3802
3803 find_filters_extern(){
3804     file=$source_path/$1
3805     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3806 }
3807
3808 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3809 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3810 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3811 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3812 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3813 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3814 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3815 CODEC_LIST="
3816     $ENCODER_LIST
3817     $DECODER_LIST
3818 "
3819 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3820 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3821 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3822 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3823
3824 AVCODEC_COMPONENTS_LIST="
3825     $BSF_LIST
3826     $DECODER_LIST
3827     $ENCODER_LIST
3828     $HWACCEL_LIST
3829     $PARSER_LIST
3830 "
3831
3832 AVDEVICE_COMPONENTS_LIST="
3833     $INDEV_LIST
3834     $OUTDEV_LIST
3835 "
3836
3837 AVFILTER_COMPONENTS_LIST="
3838     $FILTER_LIST
3839 "
3840
3841 AVFORMAT_COMPONENTS_LIST="
3842     $DEMUXER_LIST
3843     $MUXER_LIST
3844     $PROTOCOL_LIST
3845 "
3846
3847 ALL_COMPONENTS="
3848     $AVCODEC_COMPONENTS_LIST
3849     $AVDEVICE_COMPONENTS_LIST
3850     $AVFILTER_COMPONENTS_LIST
3851     $AVFORMAT_COMPONENTS_LIST
3852 "
3853
3854 for n in $COMPONENT_LIST; do
3855     v=$(toupper ${n%s})_LIST
3856     eval enable \$$v
3857     eval ${n}_if_any="\$$v"
3858 done
3859
3860 enable $ARCH_EXT_LIST
3861
3862 die_unknown(){
3863     echo "Unknown option \"$1\"."
3864     echo "See $0 --help for available options."
3865     exit 1
3866 }
3867
3868 print_in_columns() {
3869     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3870     {
3871         num_cols = width > col_width ? int(width / col_width) : 1;
3872         num_rows = int((NF + num_cols-1) / num_cols);
3873         y = x = 1;
3874         for (y = 1; y <= num_rows; y++) {
3875             i = y;
3876             for (x = 1; x <= num_cols; x++) {
3877                 if (i <= NF) {
3878                   line = sprintf("%s%-" col_width "s", line, $i);
3879                 }
3880                 i = i + num_rows;
3881             }
3882             print line; line = "";
3883         }
3884     }' | sed 's/ *$//'
3885 }
3886
3887 show_list() {
3888     suffix=_$1
3889     shift
3890     echo $* | sed s/$suffix//g | print_in_columns
3891     exit 0
3892 }
3893
3894 rand_list(){
3895     IFS=', '
3896     set -- $*
3897     unset IFS
3898     for thing; do
3899         comp=${thing%:*}
3900         prob=${thing#$comp}
3901         prob=${prob#:}
3902         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3903         echo "prob ${prob:-0.5}"
3904         printf '%s\n' $comp
3905     done
3906 }
3907
3908 do_random(){
3909     action=$1
3910     shift
3911     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3912     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3913 }
3914
3915 for opt do
3916     optval="${opt#*=}"
3917     case "$opt" in
3918         --extra-ldflags=*)
3919             add_ldflags $optval
3920         ;;
3921         --extra-ldexeflags=*)
3922             add_ldexeflags $optval
3923         ;;
3924         --extra-ldsoflags=*)
3925             add_ldsoflags $optval
3926         ;;
3927         --extra-ldlibflags=*)
3928             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3929                  "removed in the future. Use --extra-ldsoflags instead."
3930             add_ldsoflags $optval
3931         ;;
3932         --extra-libs=*)
3933             add_extralibs $optval
3934         ;;
3935         --disable-devices)
3936             disable $INDEV_LIST $OUTDEV_LIST
3937         ;;
3938         --enable-debug=*)
3939             debuglevel="$optval"
3940         ;;
3941         --disable-programs)
3942             disable $PROGRAM_LIST
3943         ;;
3944         --disable-everything)
3945             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3946         ;;
3947         --disable-all)
3948             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3949             disable $LIBRARY_LIST $PROGRAM_LIST doc
3950             enable avutil
3951         ;;
3952         --enable-random|--disable-random)
3953             action=${opt%%-random}
3954             do_random ${action#--} $COMPONENT_LIST
3955         ;;
3956         --enable-random=*|--disable-random=*)
3957             action=${opt%%-random=*}
3958             do_random ${action#--} $optval
3959         ;;
3960         --enable-sdl)
3961             enable sdl2
3962         ;;
3963         --enable-*=*|--disable-*=*)
3964             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3965             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3966             eval list=\$$(toupper $thing)_LIST
3967             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3968             list=$(filter "$name" $list)
3969             [ "$list" = "" ] && warn "Option $opt did not match anything"
3970             test $action = enable && warn_if_gets_disabled $list
3971             $action $list
3972         ;;
3973         --enable-yasm|--disable-yasm)
3974             warn "The ${opt} option is only provided for compatibility and will be\n"\
3975                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3976             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3977         ;;
3978         --yasmexe=*)
3979             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3980                  "removed in the future. Use --x86asmexe instead."
3981             x86asmexe="$optval"
3982         ;;
3983         --enable-?*|--disable-?*)
3984             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3985             if is_in $option $COMPONENT_LIST; then
3986                 test $action = disable && action=unset
3987                 eval $action \$$(toupper ${option%s})_LIST
3988             elif is_in $option $CMDLINE_SELECT; then
3989                 $action $option
3990             else
3991                 die_unknown $opt
3992             fi
3993         ;;
3994         --list-*)
3995             NAME="${opt#--list-}"
3996             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3997             NAME=${NAME%s}
3998             eval show_list $NAME \$$(toupper $NAME)_LIST
3999         ;;
4000         --help|-h) show_help
4001         ;;
4002         --quiet|-q) quiet=yes
4003         ;;
4004         --fatal-warnings) enable fatal_warnings
4005         ;;
4006         --libfuzzer=*)
4007             libfuzzer_path="$optval"
4008         ;;
4009         *)
4010             optname="${opt%%=*}"
4011             optname="${optname#--}"
4012             optname=$(echo "$optname" | sed 's/-/_/g')
4013             if is_in $optname $CMDLINE_SET; then
4014                 eval $optname='$optval'
4015             elif is_in $optname $CMDLINE_APPEND; then
4016                 append $optname "$optval"
4017             else
4018                 die_unknown $opt
4019             fi
4020         ;;
4021     esac
4022 done
4023
4024 for e in $env; do
4025     eval "export $e"
4026 done
4027
4028 if disabled autodetect; then
4029
4030     # Unless iconv is explicitely disabled by the user, we still want to probe
4031     # for the iconv from the libc.
4032     disabled iconv || enable libc_iconv
4033
4034     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4035     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4036 fi
4037 # Mark specifically enabled, but normally autodetected libraries as requested.
4038 for lib in $AUTODETECT_LIBS; do
4039     enabled $lib && request $lib
4040 done
4041 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4042 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4043 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4044
4045 disabled logging && logfile=/dev/null
4046
4047 # command line configuration sanity checks
4048
4049 # we need to build at least one lib type
4050 if ! enabled_any static shared; then
4051     cat <<EOF
4052 At least one library type must be built.
4053 Specify --enable-static to build the static libraries or --enable-shared to
4054 build the shared libraries as well. To only build the shared libraries specify
4055 --disable-static in addition to --enable-shared.
4056 EOF
4057     exit 1
4058 fi
4059
4060 die_license_disabled() {
4061     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4062 }
4063
4064 die_license_disabled_gpl() {
4065     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4066 }
4067
4068 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4069 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4070
4071 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4072 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4073
4074 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4075
4076 if enabled nonfree; then
4077     license="nonfree and unredistributable"
4078 elif enabled gplv3; then
4079     license="GPL version 3 or later"
4080 elif enabled lgplv3; then
4081     license="LGPL version 3 or later"
4082 elif enabled gpl; then
4083     license="GPL version 2 or later"
4084 else
4085     license="LGPL version 2.1 or later"
4086 fi
4087
4088 enabled_all gnutls openssl &&
4089     die "GnuTLS and OpenSSL must not be enabled at the same time."
4090
4091 enabled_all gnutls mbedtls &&
4092     die "GnuTLS and mbedTLS must not be enabled at the same time."
4093
4094 enabled_all openssl mbedtls &&
4095     die "OpenSSL and mbedTLS must not be enabled at the same time."
4096
4097 # Disable all the library-specific components if the library itself
4098 # is disabled, see AVCODEC_LIST and following _LIST variables.
4099
4100 disable_components(){
4101     disabled ${1} && disable $(
4102         eval components="\$$(toupper ${1})_COMPONENTS"
4103         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4104     )
4105 }
4106
4107 map 'disable_components $v' $LIBRARY_LIST
4108
4109 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4110 set >> $logfile
4111
4112 test -n "$valgrind" && toolchain="valgrind-memcheck"
4113
4114 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4115     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4116     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4117 }
4118
4119 case "$toolchain" in
4120     *-asan)
4121         cc_default="${toolchain%-asan}"
4122         add_cflags  -fsanitize=address
4123         add_ldflags -fsanitize=address
4124     ;;
4125     *-msan)
4126         cc_default="${toolchain%-msan}"
4127         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4128         add_ldflags -fsanitize=memory
4129     ;;
4130     *-tsan)
4131         cc_default="${toolchain%-tsan}"
4132         add_cflags  -fsanitize=thread
4133         add_ldflags -fsanitize=thread
4134         case "$toolchain" in
4135             gcc-tsan)
4136                 add_cflags  -fPIC
4137                 add_ldflags -fPIC
4138                 ;;
4139         esac
4140     ;;
4141     *-usan)
4142         cc_default="${toolchain%-usan}"
4143         add_cflags  -fsanitize=undefined
4144         add_ldflags -fsanitize=undefined
4145     ;;
4146     valgrind-*)
4147         target_exec_default="valgrind"
4148         case "$toolchain" in
4149             valgrind-massif)
4150                 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"
4151                 ;;
4152             valgrind-memcheck)
4153                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4154                 ;;
4155         esac
4156     ;;
4157     msvc)
4158         # Check whether the current MSVC version needs the C99 converter.
4159         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4160         # support enough of C99 to build ffmpeg. Default to the new
4161         # behaviour if the regexp was unable to match anything, since this
4162         # successfully parses the version number of existing supported
4163         # versions that require the converter (MSVC 2010 and 2012).
4164         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4165         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4166             cc_default="cl.exe"
4167             cxx_default="cl.exe"
4168         else
4169             die "Unsupported MSVC version (2013 or newer required)"
4170         fi
4171         ld_default="$source_path/compat/windows/mslink"
4172         nm_default="dumpbin.exe -symbols"
4173         ar_default="lib.exe"
4174         case "$arch" in
4175         aarch64|arm64)
4176             as_default="armasm64.exe"
4177             ;;
4178         arm*)
4179             as_default="armasm.exe"
4180             ;;
4181         esac
4182         target_os_default="win32"
4183         # Use a relative path for TMPDIR. This makes sure all the
4184         # ffconf temp files are written with a relative path, avoiding
4185         # issues with msys/win32 path conversion for MSVC parameters
4186         # such as -Fo<file> or -out:<file>.
4187         TMPDIR=.
4188     ;;
4189     icl)
4190         cc_default="icl"
4191         ld_default="xilink"
4192         nm_default="dumpbin -symbols"
4193         ar_default="xilib"
4194         target_os_default="win32"
4195         TMPDIR=.
4196     ;;
4197     gcov)
4198         add_cflags  -fprofile-arcs -ftest-coverage
4199         add_ldflags -fprofile-arcs -ftest-coverage
4200     ;;
4201     llvm-cov)
4202         add_cflags -fprofile-arcs -ftest-coverage
4203         add_ldflags --coverage
4204     ;;
4205     hardened)
4206         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4207         add_cflags   -fno-strict-overflow -fstack-protector-all
4208         add_ldflags  -Wl,-z,relro -Wl,-z,now
4209         add_cflags   -fPIE
4210         add_ldexeflags -fPIE -pie
4211     ;;
4212     ?*)
4213         die "Unknown toolchain $toolchain"
4214     ;;
4215 esac
4216
4217 if test -n "$cross_prefix"; then
4218     test -n "$arch" && test -n "$target_os" ||
4219         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4220     enable cross_compile
4221 fi
4222
4223 set_default target_os
4224 if test "$target_os" = android; then
4225     cc_default="clang"
4226 fi
4227
4228 ar_default="${cross_prefix}${ar_default}"
4229 cc_default="${cross_prefix}${cc_default}"
4230 cxx_default="${cross_prefix}${cxx_default}"
4231 nm_default="${cross_prefix}${nm_default}"
4232 pkg_config_default="${cross_prefix}${pkg_config_default}"
4233 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4234     ranlib_default="${cross_prefix}${ranlib_default} -D"
4235 else
4236     ranlib_default="${cross_prefix}${ranlib_default}"
4237 fi
4238 strip_default="${cross_prefix}${strip_default}"
4239 windres_default="${cross_prefix}${windres_default}"
4240
4241 sysinclude_default="${sysroot}/usr/include"
4242
4243 if enabled cuda_sdk; then
4244     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4245     enable cuda_nvcc
4246 fi
4247
4248 if enabled cuda_nvcc; then
4249     nvcc_default="nvcc"
4250     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4251 else
4252     nvcc_default="clang"
4253     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4254     NVCC_C=""
4255 fi
4256
4257 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4258     target_exec x86asmexe nvcc
4259 enabled cross_compile || host_cc_default=$cc
4260 set_default host_cc
4261
4262 pkg_config_fail_message=""
4263 if ! $pkg_config --version >/dev/null 2>&1; then
4264     warn "$pkg_config not found, library detection may fail."
4265     pkg_config=false
4266 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4267     pkg_config_fail_message="
4268 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4269 fi
4270
4271 if test $doxygen != $doxygen_default && \
4272   ! $doxygen --version >/dev/null 2>&1; then
4273     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4274 fi
4275
4276 exesuf() {
4277     case $1 in
4278         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4279     esac
4280 }
4281
4282 EXESUF=$(exesuf $target_os)
4283 HOSTEXESUF=$(exesuf $host_os)
4284
4285 # set temporary file name
4286 : ${TMPDIR:=$TEMPDIR}
4287 : ${TMPDIR:=$TMP}
4288 : ${TMPDIR:=/tmp}
4289
4290 if [ -n "$tempprefix" ] ; then
4291     mktemp(){
4292         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4293         echo "$tmpname"
4294         mkdir "$tmpname"
4295     }
4296 elif ! test_cmd mktemp -u XXXXXX; then
4297     # simple replacement for missing mktemp
4298     # NOT SAFE FOR GENERAL USE
4299     mktemp(){
4300         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4301         echo "$tmpname"
4302         mkdir "$tmpname"
4303     }
4304 fi
4305
4306 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4307     die "Unable to create temporary directory in $TMPDIR."
4308
4309 tmpfile(){
4310     tmp="${FFTMPDIR}/test"$2
4311     (set -C; exec > $tmp) 2> /dev/null ||
4312         die "Unable to create temporary file in $FFTMPDIR."
4313     eval $1=$tmp
4314 }
4315
4316 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4317 trap 'exit 2' INT
4318
4319 tmpfile TMPASM .asm
4320 tmpfile TMPC   .c
4321 tmpfile TMPCPP .cpp
4322 tmpfile TMPE   $EXESUF
4323 tmpfile TMPH   .h
4324 tmpfile TMPM   .m
4325 tmpfile TMPCU  .cu
4326 tmpfile TMPO   .o
4327 tmpfile TMPS   .S
4328 tmpfile TMPSH  .sh
4329 tmpfile TMPV   .ver
4330
4331 unset -f mktemp
4332
4333 chmod +x $TMPE
4334
4335 # make sure we can execute files in $TMPDIR
4336 cat > $TMPSH 2>> $logfile <<EOF
4337 #! /bin/sh
4338 EOF
4339 chmod +x $TMPSH >> $logfile 2>&1
4340 if ! $TMPSH >> $logfile 2>&1; then
4341     cat <<EOF
4342 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4343 variable to another directory and make sure that it is not mounted noexec.
4344 EOF
4345     die "Sanity test failed."
4346 fi
4347
4348 armasm_flags(){
4349     for flag; do
4350         case $flag in
4351             # Filter out MSVC cl.exe options from cflags that shouldn't
4352             # be passed to gas-preprocessor
4353             -M[TD]*)                                            ;;
4354             *)                  echo $flag                      ;;
4355         esac
4356    done
4357 }
4358
4359 cparser_flags(){
4360     for flag; do
4361         case $flag in
4362             -Wno-switch)             echo -Wno-switch-enum ;;
4363             -Wno-format-zero-length) ;;
4364             -Wdisabled-optimization) ;;
4365             -Wno-pointer-sign)       echo -Wno-other ;;
4366             *)                       echo $flag ;;
4367         esac
4368     done
4369 }
4370
4371 msvc_common_flags(){
4372     for flag; do
4373         case $flag in
4374             # In addition to specifying certain flags under the compiler
4375             # specific filters, they must be specified here as well or else the
4376             # generic catch all at the bottom will print the original flag.
4377             -Wall)                ;;
4378             -Wextra)              ;;
4379             -std=c99)             ;;
4380             # Common flags
4381             -fomit-frame-pointer) ;;
4382             -g)                   echo -Z7 ;;
4383             -fno-math-errno)      ;;
4384             -fno-common)          ;;
4385             -fno-signed-zeros)    ;;
4386             -fPIC)                ;;
4387             -mthumb)              ;;
4388             -march=*)             ;;
4389             -lz)                  echo zlib.lib ;;
4390             -lx264)               echo libx264.lib ;;
4391             -lstdc++)             ;;
4392             -l*)                  echo ${flag#-l}.lib ;;
4393             -LARGEADDRESSAWARE)   echo $flag ;;
4394             -L*)                  echo -libpath:${flag#-L} ;;
4395             *)                    echo $flag ;;
4396         esac
4397     done
4398 }
4399
4400 msvc_flags(){
4401     msvc_common_flags "$@"
4402     for flag; do
4403         case $flag in
4404             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4405                                        -wd4554 ;;
4406             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4407                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4408                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4409                                        -wd4307 \
4410                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4411         esac
4412     done
4413 }
4414
4415 icl_flags(){
4416     msvc_common_flags "$@"
4417     for flag; do
4418         case $flag in
4419             # Despite what Intel's documentation says -Wall, which is supported
4420             # on Windows, does enable remarks so disable them here.
4421             -Wall)                echo $flag -Qdiag-disable:remark ;;
4422             -std=c99)             echo -Qstd=c99 ;;
4423             -flto)                echo -ipo ;;
4424         esac
4425     done
4426 }
4427
4428 icc_flags(){
4429     for flag; do
4430         case $flag in
4431             -flto)                echo -ipo ;;
4432             *)                    echo $flag ;;
4433         esac
4434     done
4435 }
4436
4437 suncc_flags(){
4438     for flag; do
4439         case $flag in
4440             -march=*|-mcpu=*)
4441                 case "${flag#*=}" in
4442                     native)                   echo -xtarget=native       ;;
4443                     v9|niagara)               echo -xarch=sparc          ;;
4444                     ultrasparc)               echo -xarch=sparcvis       ;;
4445                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4446                     i586|pentium)             echo -xchip=pentium        ;;
4447                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4448                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4449                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4450                     pentium4*)          echo -xtarget=pentium4           ;;
4451                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4452                     *-sse3)             echo -xarch=sse3                 ;;
4453                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4454                     bonnell)                   echo -xarch=ssse3         ;;
4455                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4456                     westmere)                  echo -xtarget=westmere    ;;
4457                     silvermont)                echo -xarch=sse4_2        ;;
4458                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4459                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4460                                                echo -xarch=avx           ;;
4461                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4462                     btver1)                    echo -xarch=amdsse4a      ;;
4463                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4464                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4465                     k8|opteron|athlon64|athlon-fx)
4466                                                echo -xarch=sse2a         ;;
4467                     athlon*)                   echo -xarch=pentium_proa  ;;
4468                 esac
4469                 ;;
4470             -std=c99)             echo -xc99              ;;
4471             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4472             -fPIC)                echo -KPIC -xcode=pic32 ;;
4473             -W*,*)                echo $flag              ;;
4474             -f*-*|-W*|-mimpure-text)                      ;;
4475             -shared)              echo -G                 ;;
4476             *)                    echo $flag              ;;
4477         esac
4478     done
4479 }
4480
4481 probe_cc(){
4482     pfx=$1
4483     _cc=$2
4484     first=$3
4485
4486     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4487     unset _ld_o _ldflags _ld_lib _ld_path
4488     unset _depflags _DEPCMD _DEPFLAGS
4489     _flags_filter=echo
4490
4491     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4492         true # no-op to avoid reading stdin in following checks
4493     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4494         _type=llvm_gcc
4495         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4496         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4497         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4498         _cflags_speed='-O3'
4499         _cflags_size='-Os'
4500     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4501         _type=gcc
4502         gcc_version=$($_cc --version | head -n1)
4503         gcc_basever=$($_cc -dumpversion)
4504         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4505         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4506         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4507         case $gcc_basever in
4508             2) ;;
4509             2.*) ;;
4510             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4511         esac
4512         if [ "$first" = true ]; then
4513             case $gcc_basever in
4514                 4.2*)
4515                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4516             esac
4517         fi
4518         _cflags_speed='-O3'
4519         _cflags_size='-Os'
4520     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4521         _type=icc
4522         _ident=$($_cc --version | head -n1)
4523         _depflags='-MMD'
4524         _cflags_speed='-O3'
4525         _cflags_size='-Os'
4526         _cflags_noopt='-O1'
4527         _flags_filter=icc_flags
4528     elif $_cc -v 2>&1 | grep -q xlc; then
4529         _type=xlc
4530         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4531         _cflags_speed='-O5'
4532         _cflags_size='-O5 -qcompact'
4533     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4534         test -d "$sysroot" || die "No valid sysroot specified."
4535         _type=armcc
4536         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4537         armcc_conf="$PWD/armcc.conf"
4538         $_cc --arm_linux_configure                 \
4539              --arm_linux_config_file="$armcc_conf" \
4540              --configure_sysroot="$sysroot"        \
4541              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4542              die "Error creating armcc configuration file."
4543         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4544         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4545         as_default="${cross_prefix}gcc"
4546         _depflags='-MMD'
4547         _cflags_speed='-O3'
4548         _cflags_size='-Os'
4549     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4550         _type=clang
4551         _ident=$($_cc --version 2>/dev/null | head -n1)
4552         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4553         _cflags_speed='-O3'
4554         _cflags_size='-Oz'
4555     elif $_cc -V 2>&1 | grep -q Sun; then
4556         _type=suncc
4557         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4558         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4559         _DEPFLAGS='-xM1 -xc99'
4560         _ldflags='-std=c99'
4561         _cflags_speed='-O5'
4562         _cflags_size='-O5 -xspace'
4563         _flags_filter=suncc_flags
4564     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4565         _type=pathscale
4566         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4567         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4568         _cflags_speed='-O2'
4569         _cflags_size='-Os'
4570         _flags_filter='filter_out -Wdisabled-optimization'
4571     elif $_cc -v 2>&1 | grep -q Open64; then
4572         _type=open64
4573         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4574         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4575         _cflags_speed='-O2'
4576         _cflags_size='-Os'
4577         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4578     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4579         _type=armasm
4580         _ident=$($_cc | head -n1)
4581         # 4509: "This form of conditional instruction is deprecated"
4582         _flags="-nologo -ignore 4509"
4583         _flags_filter=armasm_flags
4584     elif $_cc 2>&1 | grep -q Intel; then
4585         _type=icl
4586         _ident=$($_cc 2>&1 | head -n1)
4587         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4588         # Not only is O3 broken on 13.x+ but it is slower on all previous
4589         # versions (tested) as well.
4590         _cflags_speed="-O2"
4591         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4592         if $_cc 2>&1 | grep -q Linker; then
4593             _ld_o='-out:$@'
4594         else
4595             _ld_o='-Fe$@'
4596         fi
4597         _cc_o='-Fo$@'
4598         _cc_e='-P'
4599         _flags_filter=icl_flags
4600         _ld_lib='lib%.a'
4601         _ld_path='-libpath:'
4602         # -Qdiag-error to make icl error when seeing certain unknown arguments
4603         _flags='-nologo -Qdiag-error:4044,10157'
4604         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4605         # with MSVC which enables it by default.
4606         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4607         disable stripping
4608     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4609         # lld can emulate multiple different linkers; in ms link.exe mode,
4610         # the -? parameter gives the help output which contains an identifyable
4611         # string, while it gives an error in other modes.
4612         _type=lld-link
4613         # The link.exe mode doesn't have a switch for getting the version,
4614         # but we can force it back to gnu mode and get the version from there.
4615         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4616         _ld_o='-out:$@'
4617         _flags_filter=msvc_flags
4618         _ld_lib='lib%.a'
4619         _ld_path='-libpath:'
4620     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4621         _type=msvc
4622         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4623         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4624         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4625         _cflags_speed="-O2"
4626         _cflags_size="-O1"
4627         _cflags_noopt="-O1"
4628         if $_cc -nologo- 2>&1 | grep -q Linker; then
4629             _ld_o='-out:$@'
4630         else
4631             _ld_o='-Fe$@'
4632         fi
4633         _cc_o='-Fo$@'
4634         _cc_e='-P -Fi$@'
4635         _flags_filter=msvc_flags
4636         _ld_lib='lib%.a'
4637         _ld_path='-libpath:'
4638         _flags='-nologo'
4639         disable stripping
4640     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4641         _type=cparser
4642         _ident=$($_cc --version | head -n1)
4643         _depflags='-MMD'
4644         _cflags_speed='-O4'
4645         _cflags_size='-O2'
4646         _flags_filter=cparser_flags
4647     fi
4648
4649     eval ${pfx}_type=\$_type
4650     eval ${pfx}_ident=\$_ident
4651 }
4652
4653 set_ccvars(){
4654     eval ${1}_C=\${_cc_c-\${${1}_C}}
4655     eval ${1}_E=\${_cc_e-\${${1}_E}}
4656     eval ${1}_O=\${_cc_o-\${${1}_O}}
4657
4658     if [ -n "$_depflags" ]; then
4659         eval ${1}_DEPFLAGS=\$_depflags
4660     else
4661         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4662         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4663         eval DEP${1}FLAGS=\$_flags
4664     fi
4665 }
4666
4667 probe_cc cc "$cc" "true"
4668 cflags_filter=$_flags_filter
4669 cflags_speed=$_cflags_speed
4670 cflags_size=$_cflags_size
4671 cflags_noopt=$_cflags_noopt
4672 add_cflags $_flags $_cflags
4673 cc_ldflags=$_ldflags
4674 set_ccvars CC
4675 set_ccvars CXX
4676
4677 probe_cc hostcc "$host_cc"
4678 host_cflags_filter=$_flags_filter
4679 host_cflags_speed=$_cflags_speed
4680 add_host_cflags  $_flags $_cflags
4681 set_ccvars HOSTCC
4682
4683 test -n "$cc_type" && enable $cc_type ||
4684     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4685
4686 : ${as_default:=$cc}
4687 : ${objcc_default:=$cc}
4688 : ${dep_cc_default:=$cc}
4689 : ${ld_default:=$cc}
4690 : ${host_ld_default:=$host_cc}
4691 set_default ar as objcc dep_cc ld ln_s host_ld windres
4692
4693 probe_cc as "$as"
4694 asflags_filter=$_flags_filter
4695 add_asflags $_flags $_cflags
4696 set_ccvars AS
4697
4698 probe_cc objcc "$objcc"
4699 objcflags_filter=$_flags_filter
4700 add_objcflags $_flags $_cflags
4701 set_ccvars OBJC
4702
4703 probe_cc ld "$ld"
4704 ldflags_filter=$_flags_filter
4705 add_ldflags $_flags $_ldflags
4706 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4707 LD_O=${_ld_o-$LD_O}
4708 LD_LIB=${_ld_lib-$LD_LIB}
4709 LD_PATH=${_ld_path-$LD_PATH}
4710
4711 probe_cc hostld "$host_ld"
4712 host_ldflags_filter=$_flags_filter
4713 add_host_ldflags $_flags $_ldflags
4714 HOSTLD_O=${_ld_o-$HOSTLD_O}
4715
4716 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4717     probe_cc depcc "$dep_cc"
4718     CCDEP=${_DEPCMD:-$DEPCMD}
4719     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4720     DEPCCFLAGS=$_flags
4721 fi
4722
4723 if $ar 2>&1 | grep -q Microsoft; then
4724     arflags="-nologo"
4725     ar_o='-out:$@'
4726 elif $ar 2>&1 | grep -q "\[D\] "; then
4727     arflags="rcD"
4728     ar_o='$@'
4729 else
4730     arflags="rc"
4731     ar_o='$@'
4732 fi
4733
4734 add_cflags $extra_cflags
4735 add_cxxflags $extra_cxxflags
4736 add_objcflags $extra_objcflags
4737 add_asflags $extra_cflags
4738
4739 if test -n "$sysroot"; then
4740     case "$cc_type" in
4741         gcc|llvm_gcc|clang)
4742             add_cppflags --sysroot="$sysroot"
4743             add_ldflags --sysroot="$sysroot"
4744         ;;
4745     esac
4746 fi
4747
4748 if test "$cpu" = host; then
4749     enabled cross_compile &&
4750         die "--cpu=host makes no sense when cross-compiling."
4751
4752     case "$cc_type" in
4753         gcc|llvm_gcc)
4754             check_native(){
4755                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4756                 sed -n "/cc1.*$1=/{
4757                             s/.*$1=\\([^ ]*\\).*/\\1/
4758                             p
4759                             q
4760                         }" $TMPE
4761             }
4762             cpu=$(check_native -march || check_native -mcpu)
4763         ;;
4764         clang)
4765             check_native(){
4766                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4767                 sed -n "/cc1.*-target-cpu /{
4768                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4769                             p
4770                             q
4771                         }" $TMPE
4772             }
4773             cpu=$(check_native -march)
4774         ;;
4775     esac
4776
4777     test "${cpu:-host}" = host &&
4778         die "--cpu=host not supported with compiler $cc"
4779 fi
4780
4781 # Deal with common $arch aliases
4782 case "$arch" in
4783     aarch64|arm64)
4784         arch="aarch64"
4785     ;;
4786     arm*|iPad*|iPhone*)
4787         arch="arm"
4788     ;;
4789     mips*|IP*)
4790         case "$arch" in
4791         *el)
4792             add_cppflags -EL
4793             add_ldflags -EL
4794         ;;
4795         *eb)
4796             add_cppflags -EB
4797             add_ldflags -EB
4798         ;;
4799         esac
4800         arch="mips"
4801     ;;
4802     parisc*|hppa*)
4803         arch="parisc"
4804     ;;
4805     "Power Macintosh"|ppc*|powerpc*)
4806         arch="ppc"
4807     ;;
4808     s390|s390x)
4809         arch="s390"
4810     ;;
4811     sh4|sh)
4812         arch="sh4"
4813     ;;
4814     sun4*|sparc*)
4815         arch="sparc"
4816     ;;
4817     tilegx|tile-gx)
4818         arch="tilegx"
4819     ;;
4820     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4821         arch="x86"
4822     ;;
4823 esac
4824
4825 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4826 enable $arch
4827
4828 # Add processor-specific flags
4829 if enabled aarch64; then
4830
4831     case $cpu in
4832         armv*)
4833             cpuflags="-march=$cpu"
4834         ;;
4835         *)
4836             cpuflags="-mcpu=$cpu"
4837         ;;
4838     esac
4839
4840 elif enabled alpha; then
4841
4842     cpuflags="-mcpu=$cpu"
4843
4844 elif enabled arm; then
4845
4846     check_arm_arch() {
4847         test_cpp_condition stddef.h \
4848             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4849             $cpuflags
4850     }
4851
4852     probe_arm_arch() {
4853         if   check_arm_arch 4;        then echo armv4
4854         elif check_arm_arch 4T;       then echo armv4t
4855         elif check_arm_arch 5;        then echo armv5
4856         elif check_arm_arch 5E;       then echo armv5e
4857         elif check_arm_arch 5T;       then echo armv5t
4858         elif check_arm_arch 5TE;      then echo armv5te
4859         elif check_arm_arch 5TEJ;     then echo armv5te
4860         elif check_arm_arch 6;        then echo armv6
4861         elif check_arm_arch 6J;       then echo armv6j
4862         elif check_arm_arch 6K;       then echo armv6k
4863         elif check_arm_arch 6Z;       then echo armv6z
4864         elif check_arm_arch 6KZ;      then echo armv6zk
4865         elif check_arm_arch 6ZK;      then echo armv6zk
4866         elif check_arm_arch 6T2;      then echo armv6t2
4867         elif check_arm_arch 7;        then echo armv7
4868         elif check_arm_arch 7A  7_A;  then echo armv7-a
4869         elif check_arm_arch 7S;       then echo armv7-a
4870         elif check_arm_arch 7R  7_R;  then echo armv7-r
4871         elif check_arm_arch 7M  7_M;  then echo armv7-m
4872         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4873         elif check_arm_arch 8A  8_A;  then echo armv8-a
4874         fi
4875     }
4876
4877     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4878
4879     case $cpu in
4880         armv*)
4881             cpuflags="-march=$cpu"
4882             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4883         ;;
4884         *)
4885             cpuflags="-mcpu=$cpu"
4886             case $cpu in
4887                 cortex-a*)                               subarch=armv7a  ;;
4888                 cortex-r*)                               subarch=armv7r  ;;
4889                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4890                 arm11*)                                  subarch=armv6   ;;
4891                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4892                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4893                 *)                             subarch=$(probe_arm_arch) ;;
4894             esac
4895         ;;
4896     esac
4897
4898     case "$subarch" in
4899         armv5t*)    enable fast_clz                ;;
4900         armv[6-8]*)
4901             enable fast_clz
4902             disabled fast_unaligned || enable fast_unaligned
4903             ;;
4904     esac
4905
4906 elif enabled avr32; then
4907
4908     case $cpu in
4909         ap7[02]0[0-2])
4910             subarch="avr32_ap"
4911             cpuflags="-mpart=$cpu"
4912         ;;
4913         ap)
4914             subarch="avr32_ap"
4915             cpuflags="-march=$cpu"
4916         ;;
4917         uc3[ab]*)
4918             subarch="avr32_uc"
4919             cpuflags="-mcpu=$cpu"
4920         ;;
4921         uc)
4922             subarch="avr32_uc"
4923             cpuflags="-march=$cpu"
4924         ;;
4925     esac
4926
4927 elif enabled bfin; then
4928
4929     cpuflags="-mcpu=$cpu"
4930
4931 elif enabled mips; then
4932
4933     cpuflags="-march=$cpu"
4934
4935     if [ "$cpu" != "generic" ]; then
4936         disable mips32r2
4937         disable mips32r5
4938         disable mips64r2
4939         disable mips32r6
4940         disable mips64r6
4941         disable loongson2
4942         disable loongson3
4943
4944         case $cpu in
4945             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4946                 enable mips32r2
4947                 disable msa
4948             ;;
4949             p5600|i6400|p6600)
4950                 disable mipsdsp
4951                 disable mipsdspr2
4952             ;;
4953             loongson*)
4954                 enable loongson2
4955                 enable loongson3
4956                 enable local_aligned
4957                 enable simd_align_16
4958                 enable fast_64bit
4959                 enable fast_clz
4960                 enable fast_cmov
4961                 enable fast_unaligned
4962                 disable aligned_stack
4963                 disable mipsdsp
4964                 disable mipsdspr2
4965                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4966                 if [ $cc == gcc ]; then
4967                     gcc_version=$(gcc -dumpversion)
4968                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4969                         expensive_optimization_flag=""
4970                     else
4971                         expensive_optimization_flag="-fno-expensive-optimizations"
4972                     fi
4973                 fi
4974                 case $cpu in
4975                     loongson3*)
4976                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4977                     ;;
4978                     loongson2e)
4979                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4980                     ;;
4981                     loongson2f)
4982                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4983                     ;;
4984                 esac
4985             ;;
4986             *)
4987                 # Unknown CPU. Disable everything.
4988                 warn "unknown CPU. Disabling all MIPS optimizations."
4989                 disable mipsfpu
4990                 disable mipsdsp
4991                 disable mipsdspr2
4992                 disable msa
4993                 disable mmi
4994             ;;
4995         esac
4996
4997         case $cpu in
4998             24kc)
4999                 disable mipsfpu
5000                 disable mipsdsp
5001                 disable mipsdspr2
5002             ;;
5003             24kf*)
5004                 disable mipsdsp
5005                 disable mipsdspr2
5006             ;;
5007             24kec|34kc|1004kc)
5008                 disable mipsfpu
5009                 disable mipsdspr2
5010             ;;
5011             24kef*|34kf*|1004kf*)
5012                 disable mipsdspr2
5013             ;;
5014             74kc)
5015                 disable mipsfpu
5016             ;;
5017             p5600)
5018                 enable mips32r5
5019                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
5020             ;;
5021             i6400)
5022                 enable mips64r6
5023                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5024             ;;
5025             p6600)
5026                 enable mips64r6
5027                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5028             ;;
5029         esac
5030     else
5031         # We do not disable anything. Is up to the user to disable the unwanted features.
5032         warn 'generic cpu selected'
5033     fi
5034
5035 elif enabled ppc; then
5036
5037     disable ldbrx
5038
5039     case $(tolower $cpu) in
5040         601|ppc601|powerpc601)
5041             cpuflags="-mcpu=601"
5042             disable altivec
5043         ;;
5044         603*|ppc603*|powerpc603*)
5045             cpuflags="-mcpu=603"
5046             disable altivec
5047         ;;
5048         604*|ppc604*|powerpc604*)
5049             cpuflags="-mcpu=604"
5050             disable altivec
5051         ;;
5052         g3|75*|ppc75*|powerpc75*)
5053             cpuflags="-mcpu=750"
5054             disable altivec
5055         ;;
5056         g4|745*|ppc745*|powerpc745*)
5057             cpuflags="-mcpu=7450"
5058             disable vsx
5059         ;;
5060         74*|ppc74*|powerpc74*)
5061             cpuflags="-mcpu=7400"
5062             disable vsx
5063         ;;
5064         g5|970|ppc970|powerpc970)
5065             cpuflags="-mcpu=970"
5066             disable vsx
5067         ;;
5068         power[3-6]*)
5069             cpuflags="-mcpu=$cpu"
5070             disable vsx
5071         ;;
5072         power[7-8]*)
5073             cpuflags="-mcpu=$cpu"
5074         ;;
5075         cell)
5076             cpuflags="-mcpu=cell"
5077             enable ldbrx
5078             disable vsx
5079         ;;
5080         e500mc)
5081             cpuflags="-mcpu=e500mc"
5082             disable altivec
5083         ;;
5084         e500v2)
5085             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5086             disable altivec
5087             disable dcbzl
5088         ;;
5089         e500)
5090             cpuflags="-mcpu=8540 -mhard-float"
5091             disable altivec
5092             disable dcbzl
5093         ;;
5094     esac
5095
5096 elif enabled sparc; then
5097
5098     case $cpu in
5099         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5100             cpuflags="-mcpu=$cpu"
5101         ;;
5102         ultrasparc*|niagara[234])
5103             cpuflags="-mcpu=$cpu"
5104         ;;
5105     esac
5106
5107 elif enabled x86; then
5108
5109     case $cpu in
5110         i[345]86|pentium)
5111             cpuflags="-march=$cpu"
5112             disable i686
5113             disable mmx
5114         ;;
5115         # targets that do NOT support nopl and conditional mov (cmov)
5116         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5117             cpuflags="-march=$cpu"
5118             disable i686
5119         ;;
5120         # targets that do support nopl and conditional mov (cmov)
5121         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5122         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5123         |amdfam10|barcelona|b[dt]ver*|znver*)
5124             cpuflags="-march=$cpu"
5125             enable i686
5126             enable fast_cmov
5127         ;;
5128         # targets that do support conditional mov but on which it's slow
5129         pentium4|pentium4m|prescott|nocona)
5130             cpuflags="-march=$cpu"
5131             enable i686
5132             disable fast_cmov
5133         ;;
5134     esac
5135
5136 fi
5137
5138 if [ "$cpu" != generic ]; then
5139     add_cflags  $cpuflags
5140     add_asflags $cpuflags
5141     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5142 fi
5143
5144 # compiler sanity check
5145 test_exec <<EOF
5146 int main(void){ return 0; }
5147 EOF
5148 if test "$?" != 0; then
5149     echo "$cc is unable to create an executable file."
5150     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5151         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5152         echo "Only do this if you know what cross compiling means."
5153     fi
5154     die "C compiler test failed."
5155 fi
5156
5157 add_cppflags -D_ISOC99_SOURCE
5158 add_cxxflags -D__STDC_CONSTANT_MACROS
5159 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5160
5161 # some compilers silently accept -std=c11, so we also need to check that the
5162 # version macro is defined properly
5163 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5164     add_cflags -std=c11 ||
5165     check_cflags -std=c99
5166
5167 check_cppflags -D_FILE_OFFSET_BITS=64
5168 check_cppflags -D_LARGEFILE_SOURCE
5169
5170 add_host_cppflags -D_ISOC99_SOURCE
5171 check_host_cflags -std=c99
5172 check_host_cflags -Wall
5173 check_host_cflags $host_cflags_speed
5174
5175 check_64bit(){
5176     arch32=$1
5177     arch64=$2
5178     expr=${3:-'sizeof(void *) > 4'}
5179     test_code cc "" "int test[2*($expr) - 1]" &&
5180         subarch=$arch64 || subarch=$arch32
5181     enable $subarch
5182 }
5183
5184 case "$arch" in
5185     aarch64|alpha|ia64)
5186         enabled shared && enable_weak pic
5187     ;;
5188     mips)
5189         check_64bit mips mips64 '_MIPS_SIM > 1'
5190         enabled shared && enable_weak pic
5191     ;;
5192     parisc)
5193         check_64bit parisc parisc64
5194         enabled shared && enable_weak pic
5195     ;;
5196     ppc)
5197         check_64bit ppc ppc64
5198         enabled shared && enable_weak pic
5199     ;;
5200     s390)
5201         check_64bit s390 s390x
5202         enabled shared && enable_weak pic
5203     ;;
5204     sparc)
5205         check_64bit sparc sparc64
5206         enabled shared && enable_weak pic
5207     ;;
5208     x86)
5209         check_64bit x86_32 x86_64
5210         # Treat x32 as x64 for now. Note it also needs pic if shared
5211         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5212             subarch=x86_64 && enable x86_64 && disable x86_32
5213         if enabled x86_64; then
5214             enabled shared && enable_weak pic
5215             objformat=elf64
5216         fi
5217     ;;
5218 esac
5219
5220 # OS specific
5221 case $target_os in
5222     aix)
5223         SHFLAGS=-shared
5224         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5225         enabled shared && add_ldflags -Wl,-brtl
5226         arflags='-Xany -r -c'
5227         striptype=""
5228         ;;
5229     android)
5230         disable symver
5231         enable section_data_rel_ro
5232         add_cflags -fPIE
5233         add_ldexeflags -fPIE -pie
5234         SLIB_INSTALL_NAME='$(SLIBNAME)'
5235         SLIB_INSTALL_LINKS=
5236         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5237         ;;
5238     haiku)
5239         prefix_default="/boot/common"
5240         network_extralibs="-lnetwork"
5241         host_extralibs=
5242         ;;
5243     sunos)
5244         SHFLAGS='-shared -Wl,-h,$$(@F)'
5245         enabled x86 && append SHFLAGS -mimpure-text
5246         network_extralibs="-lsocket -lnsl"
5247         add_cppflags -D__EXTENSIONS__
5248         # When using suncc to build, the Solaris linker will mark
5249         # an executable with each instruction set encountered by
5250         # the Solaris assembler.  As our libraries contain their own
5251         # guards for processor-specific code, instead suppress
5252         # generation of the HWCAPS ELF section on Solaris x86 only.
5253         enabled_all suncc x86 &&
5254             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5255             add_ldflags -Wl,-M,mapfile
5256         nm_default='nm -P -g'
5257         striptype=""
5258         version_script='-M'
5259         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5260         ;;
5261     netbsd)
5262         disable symver
5263         oss_indev_extralibs="-lossaudio"
5264         oss_outdev_extralibs="-lossaudio"
5265         enabled gcc || check_ldflags -Wl,-zmuldefs
5266         ;;
5267     openbsd|bitrig)
5268         disable symver
5269         striptype=""
5270         SHFLAGS='-shared'
5271         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5272         SLIB_INSTALL_LINKS=
5273         oss_indev_extralibs="-lossaudio"
5274         oss_outdev_extralibs="-lossaudio"
5275         ;;
5276     dragonfly)
5277         disable symver
5278         ;;
5279     freebsd)
5280         ;;
5281     bsd/os)
5282         add_extralibs -lpoll -lgnugetopt
5283         strip="strip -d"
5284         ;;
5285     darwin)
5286         enabled ppc && add_asflags -force_cpusubtype_ALL
5287         install_name_dir_default='$(SHLIBDIR)'
5288         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5289         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5290         strip="${strip} -x"
5291         add_ldflags -Wl,-dynamic,-search_paths_first
5292         check_cflags -Werror=partial-availability
5293         SLIBSUF=".dylib"
5294         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5295         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5296         enabled x86_64 && objformat="macho64" || objformat="macho32"
5297         enabled_any pic shared x86_64 ||
5298             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5299         check_headers dispatch/dispatch.h &&
5300             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5301         if test -n "$sysroot"; then
5302             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5303             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5304         fi
5305         version_script='-exported_symbols_list'
5306         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5307         ;;
5308     msys*)
5309         die "Native MSYS builds are discouraged, please use the MINGW environment."
5310         ;;
5311     mingw32*|mingw64*)
5312         target_os=mingw32
5313         LIBTARGET=i386
5314         if enabled x86_64; then
5315             LIBTARGET="i386:x86-64"
5316         elif enabled arm; then
5317             LIBTARGET="arm"
5318         elif enabled aarch64; then
5319             LIBTARGET="arm64"
5320         fi
5321         if enabled shared; then
5322             # Cannot build both shared and static libs when using dllimport.
5323             disable static
5324         fi
5325         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5326         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5327         shlibdir_default="$bindir_default"
5328         SLIBPREF=""
5329         SLIBSUF=".dll"
5330         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5331         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5332         if test_cmd lib.exe -list; then
5333             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5334             if enabled x86_64; then
5335                 LIBTARGET=x64
5336             fi
5337         else
5338             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5339         fi
5340         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5341         SLIB_INSTALL_LINKS=
5342         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5343         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5344         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5345         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5346         enabled x86_64 && objformat="win64" || objformat="win32"
5347         dlltool="${cross_prefix}dlltool"
5348         ranlib=:
5349         enable dos_paths
5350         check_ldflags -Wl,--nxcompat,--dynamicbase
5351         # Lets work around some stupidity in binutils.
5352         # ld will strip relocations from executables even though we need them
5353         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5354         # however ld then forgets what the entry point should be (oops) so we
5355         # have to manually (re)set it.
5356         if enabled x86_32; then
5357             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5358         elif enabled x86_64; then
5359             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5360             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5361             # Set image base >4GB for extra entropy with HEASLR
5362             add_ldexeflags -Wl,--image-base,0x140000000
5363             append SHFLAGS -Wl,--image-base,0x180000000
5364         fi
5365         ;;
5366     win32|win64)
5367         disable symver
5368         if enabled shared; then
5369             # Link to the import library instead of the normal static library
5370             # for shared libs.
5371             LD_LIB='%.lib'
5372             # Cannot build both shared and static libs with MSVC or icl.
5373             disable static
5374         fi
5375         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5376         shlibdir_default="$bindir_default"
5377         SLIBPREF=""
5378         SLIBSUF=".dll"
5379         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5380         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5381         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5382         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5383         SLIB_INSTALL_LINKS=
5384         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5385         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5386         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5387         enabled x86_64 && objformat="win64" || objformat="win32"
5388         ranlib=:
5389         enable dos_paths
5390         ;;
5391     cygwin*)
5392         target_os=cygwin
5393         shlibdir_default="$bindir_default"
5394         SLIBPREF="cyg"
5395         SLIBSUF=".dll"
5396         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5397         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5398         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5399         SLIB_INSTALL_LINKS=
5400         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5401         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5402         enabled x86_64 && objformat="win64" || objformat="win32"
5403         enable dos_paths
5404         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5405         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5406         ;;
5407     *-dos|freedos|opendos)
5408         network_extralibs="-lsocket"
5409         objformat="coff"
5410         enable dos_paths
5411         ;;
5412     linux)
5413         enable section_data_rel_ro
5414         enabled_any arm aarch64 && enable_weak linux_perf
5415         ;;
5416     irix*)
5417         target_os=irix
5418         ranlib="echo ignoring ranlib"
5419         ;;
5420     os/2*)
5421         strip="lxlite -CS"
5422         striptype=""
5423         objformat="aout"
5424         add_cppflags -D_GNU_SOURCE
5425         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5426         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5427         LIBSUF="_s.a"
5428         SLIBPREF=""
5429         SLIBSUF=".dll"
5430         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5431         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5432         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5433             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5434             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5435             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5436             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5437         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5438             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5439         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5440         SLIB_INSTALL_LINKS=
5441         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5442         enable dos_paths
5443         enable_weak os2threads
5444         ;;
5445     gnu/kfreebsd)
5446         add_cppflags -D_BSD_SOURCE
5447         ;;
5448     gnu)
5449         ;;
5450     qnx)
5451         add_cppflags -D_QNX_SOURCE
5452         network_extralibs="-lsocket"
5453         ;;
5454     symbian)
5455         SLIBSUF=".dll"
5456         enable dos_paths
5457         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5458         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5459         add_ldflags -Wl,--target1-abs,--no-undefined \
5460                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5461                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5462         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5463                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5464                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5465         ;;
5466     minix)
5467         ;;
5468     none)
5469         ;;
5470     *)
5471         die "Unknown OS '$target_os'."
5472         ;;
5473 esac
5474
5475 # test if creating links works
5476 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5477 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5478 mkdir "$link_dest"
5479 $ln_s "$link_dest" "$link_name"
5480 touch "$link_dest/test_file"
5481 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5482     # create link to source path
5483     [ -e src ] && rm src
5484     $ln_s "$source_path" src
5485     source_link=src
5486 else
5487     # creating directory links doesn't work
5488     # fall back to using the full source path
5489     source_link="$source_path"
5490 fi
5491 # cleanup
5492 rm -r "$link_dest"
5493 rm -r "$link_name"
5494
5495 # determine libc flavour
5496
5497 probe_libc(){
5498     pfx=$1
5499     pfx_no_=${pfx%_}
5500     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5501     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5502         eval ${pfx}libc_type=uclibc
5503         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5504     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5505         eval ${pfx}libc_type=glibc
5506         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5507     # MinGW headers can be installed on Cygwin, so check for newlib first.
5508     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5509         eval ${pfx}libc_type=newlib
5510         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5511     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5512     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5513         eval ${pfx}libc_type=mingw64
5514         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5515             add_compat msvcrt/snprintf.o
5516             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5517         fi
5518         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5519         eval test \$${pfx_no_}cc_type = "gcc" &&
5520             add_${pfx}cppflags -D__printf__=__gnu_printf__
5521         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5522             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5523         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5524     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5525          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5526         eval ${pfx}libc_type=mingw32
5527         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5528             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5529             die "ERROR: MinGW32 runtime version must be >= 3.15."
5530         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5531         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5532             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5533         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5534             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5535         eval test \$${pfx_no_}cc_type = "gcc" &&
5536             add_${pfx}cppflags -D__printf__=__gnu_printf__
5537         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5538     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5539         eval ${pfx}libc_type=msvcrt
5540         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5541             if [ "$pfx" = host_ ]; then
5542                 add_host_cppflags -Dsnprintf=_snprintf
5543             else
5544                 add_compat strtod.o strtod=avpriv_strtod
5545                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5546                                              _snprintf=avpriv_snprintf  \
5547                                              vsnprintf=avpriv_vsnprintf
5548             fi
5549         fi
5550         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5551         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5552         # 0x601 by default unless something else is set by the user.
5553         # This can easily lead to us detecting functions only present
5554         # in such new versions and producing binaries requiring windows 7.0.
5555         # Therefore explicitly set the default to Vista unless the user has
5556         # set something else on the command line.
5557         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5558         # family. For these cases, configure is free to use any functions
5559         # found in the SDK headers by default. (Alternatively, we could force
5560         # _WIN32_WINNT to 0x0602 in that case.)
5561         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5562             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5563 #ifdef WINAPI_FAMILY
5564 #include <winapifamily.h>
5565 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5566 #error not desktop
5567 #endif
5568 #endif
5569 EOF
5570         if [ "$pfx" = "" ]; then
5571             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5572             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5573         fi
5574     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5575         eval ${pfx}libc_type=klibc
5576     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5577         eval ${pfx}libc_type=bionic
5578     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5579         eval ${pfx}libc_type=solaris
5580         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5581     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5582         eval ${pfx}libc_type=djgpp
5583         add_cppflags -U__STRICT_ANSI__
5584         add_cflags "-include $source_path/compat/djgpp/math.h"
5585         add_compat djgpp/math.o
5586     fi
5587     test_${pfx}cc <<EOF
5588 #include <time.h>
5589 void *v = localtime_r;
5590 EOF
5591 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5592 #include <time.h>
5593 void *v = localtime_r;
5594 EOF
5595
5596     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5597 }
5598
5599 probe_libc
5600 probe_libc host_
5601
5602 # hacks for compiler/libc/os combinations
5603
5604 case $libc_type in
5605     bionic)
5606         add_compat strtod.o strtod=avpriv_strtod
5607         ;;
5608 esac
5609
5610 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5611     add_cppflags '-I\$(SRC_PATH)/compat/float'
5612
5613 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5614
5615 set_default libdir
5616 : ${shlibdir_default:="$libdir"}
5617 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5618
5619 set_default $PATHS_LIST
5620 set_default nm
5621
5622 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5623
5624 enable_weak_pic() {
5625     disabled pic && return
5626     enable pic
5627     add_cppflags -DPIC
5628     case "$target_os" in
5629     mingw*|cygwin*|win*)
5630         ;;
5631     *)
5632         add_cflags -fPIC
5633         add_asflags -fPIC
5634         ;;
5635     esac
5636 }
5637
5638 enabled pic && enable_weak_pic
5639
5640 test_cc <<EOF || die "Symbol mangling check failed."
5641 int ff_extern;
5642 EOF
5643 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5644 extern_prefix=${sym%%ff_extern*}
5645
5646 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5647
5648 for restrict_keyword in restrict __restrict__ __restrict ""; do
5649     test_code cc "" "char * $restrict_keyword p" && break
5650 done
5651
5652 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5653
5654 # The global variable ensures the bits appear unchanged in the object file.
5655 test_cc <<EOF || die "endian test failed"
5656 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5657 EOF
5658 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5659
5660 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5661
5662 if ! enabled ppc64 || enabled bigendian; then
5663     disable vsx
5664 fi
5665
5666 check_gas() {
5667     log "check_gas using '$as' as AS"
5668     # :vararg is used on aarch64, arm and ppc altivec
5669     check_as vararg "
5670 .macro m n, y:vararg=0
5671 \n: .int \y
5672 .endm
5673 m x" || return 1
5674     # .altmacro is only used in arm asm
5675     ! enabled arm || check_as gnu_as ".altmacro"
5676 }
5677
5678 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5679     nogas=:
5680     enabled_any arm aarch64 && nogas=die
5681     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5682     as_noop=-v
5683
5684     case $as_type in
5685         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5686         gcc)  gaspp_as_type=gas ;;
5687         *)    gaspp_as_type=$as_type ;;
5688     esac
5689
5690     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5691
5692     test "${as#*gas-preprocessor.pl}" != "$as" ||
5693     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5694         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5695
5696     if ! check_gas ; then
5697         as=${gas:=$as}
5698         check_gas || \
5699             $nogas "GNU assembler not found, install/update gas-preprocessor"
5700     fi
5701
5702     check_as as_func ".func test
5703                       .endfunc"
5704 fi
5705
5706 check_inline_asm inline_asm_labels '"1:\n"'
5707
5708 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5709
5710 if enabled aarch64; then
5711     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5712     # internal assembler in clang 3.3 does not support this instruction
5713     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5714     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5715
5716     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5717
5718 elif enabled alpha; then
5719
5720     check_cflags -mieee
5721
5722 elif enabled arm; then
5723
5724     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5725     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5726 float func(float a, float b){ return a+b; }
5727 EOF
5728     enabled thumb && check_cflags -mthumb || check_cflags -marm
5729
5730     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5731         :
5732     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5733         :
5734     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5735         case "${cross_prefix:-$cc}" in
5736             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5737             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5738 __asm__ (".eabi_attribute 28, 1");
5739 int main(void) { return 0; }
5740 EOF
5741         esac
5742         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5743     fi
5744
5745     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5746     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5747     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5748     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5749     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5750     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5751     enabled setend  && check_insn setend  'setend be'
5752
5753     [ $target_os = linux ] || [ $target_os = android ] ||
5754         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5755             $ARCH_EXT_LIST_ARM
5756
5757     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5758
5759     check_as as_arch_directive ".arch armv7-a"
5760     check_as as_dn_directive   "ra .dn d0.i16"
5761     check_as as_fpu_directive  ".fpu neon"
5762
5763     # llvm's integrated assembler supports .object_arch from llvm 3.5
5764     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5765         check_as as_object_arch ".object_arch armv4"
5766
5767     # MS armasm fails to assemble our PIC constructs
5768     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5769
5770 elif enabled mips; then
5771
5772     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5773     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5774     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5775
5776     # Enable minimum ISA based on selected options
5777     if enabled mips64; then
5778         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5779         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5780         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5781     else
5782         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5783         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5784         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5785         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5786     fi
5787
5788     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5789     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5790     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5791     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5792     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5793     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5794
5795     if enabled bigendian && enabled msa; then
5796         disable msa
5797     fi
5798
5799 elif enabled parisc; then
5800
5801     if enabled gcc; then
5802         case $($cc -dumpversion) in
5803             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5804         esac
5805     fi
5806
5807 elif enabled ppc; then
5808
5809     enable local_aligned
5810
5811     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5812     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5813     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5814     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5815
5816     if enabled altivec; then
5817         check_cflags -maltivec -mabi=altivec
5818
5819         # check if our compiler supports Motorola AltiVec C API
5820         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5821                                     vector signed int v2 = (vector signed int) { 1 };
5822                                     v1 = vec_add(v1, v2);"
5823
5824         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5825     fi
5826
5827     if enabled vsx; then
5828         check_cflags -mvsx &&
5829         check_cc vsx altivec.h "int v[4] = { 0 };
5830                                 vector signed int v1 = vec_vsx_ld(0, v);"
5831     fi
5832
5833     if enabled power8; then
5834         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5835     fi
5836
5837 elif enabled x86; then
5838
5839     check_builtin rdtsc    intrin.h   "__rdtsc()"
5840     check_builtin mm_empty mmintrin.h "_mm_empty()"
5841
5842     enable local_aligned
5843
5844     # check whether EBP is available on x86
5845     # As 'i' is stored on the stack, this program will crash
5846     # if the base pointer is used to access it because the
5847     # base pointer is cleared in the inline assembly code.
5848     check_exec_crash <<EOF && enable ebp_available
5849 volatile int i=0;
5850 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5851 return i;
5852 EOF
5853
5854     # check whether EBX is available on x86
5855     check_inline_asm ebx_available '""::"b"(0)' &&
5856         check_inline_asm ebx_available '"":::"%ebx"'
5857
5858     # check whether xmm clobbers are supported
5859     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5860
5861     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5862         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5863
5864     # check whether binutils is new enough to compile SSSE3/MMXEXT
5865     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5866     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5867
5868     probe_x86asm(){
5869         x86asmexe_probe=$1
5870         if test_cmd $x86asmexe_probe -v; then
5871             x86asmexe=$x86asmexe_probe
5872             x86asm_type=nasm
5873             x86asm_debug="-g -F dwarf"
5874             X86ASMDEP=
5875             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5876         elif test_cmd $x86asmexe_probe --version; then
5877             x86asmexe=$x86asmexe_probe
5878             x86asm_type=yasm
5879             x86asm_debug="-g dwarf2"
5880             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5881             X86ASM_DEPFLAGS=
5882         fi
5883         check_x86asm x86asm "movbe ecx, [5]"
5884     }
5885
5886     if ! disabled_any asm mmx x86asm; then
5887         disable x86asm
5888         for program in $x86asmexe nasm yasm; do
5889             probe_x86asm $program && break
5890         done
5891         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5892         X86ASMFLAGS="-f $objformat"
5893         enabled pic               && append X86ASMFLAGS "-DPIC"
5894         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5895         case "$objformat" in
5896             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5897         esac
5898
5899         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5900         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5901         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5902         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5903         check_x86asm cpunop          "CPU amdnop"
5904     fi
5905
5906     case "$cpu" in
5907         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5908             disable fast_clz
5909         ;;
5910     esac
5911
5912 fi
5913
5914 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5915
5916 check_ldflags -Wl,--as-needed
5917 check_ldflags -Wl,-z,noexecstack
5918
5919 if ! disabled network; then
5920     check_func getaddrinfo $network_extralibs
5921     check_func inet_aton $network_extralibs
5922
5923     check_type netdb.h "struct addrinfo"
5924     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5925     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5926     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5927     check_type poll.h "struct pollfd"
5928     check_type netinet/sctp.h "struct sctp_event_subscribe"
5929     check_struct "sys/socket.h" "struct msghdr" msg_flags
5930     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5931     check_type netinet/in.h "struct sockaddr_in6"
5932     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5933     check_type "sys/types.h sys/socket.h" socklen_t
5934
5935     # Prefer arpa/inet.h over winsock2
5936     if check_headers arpa/inet.h ; then
5937         check_func closesocket
5938     elif check_headers winsock2.h ; then
5939         check_func_headers winsock2.h closesocket -lws2 &&
5940             network_extralibs="-lws2" ||
5941         { check_func_headers winsock2.h closesocket -lws2_32 &&
5942             network_extralibs="-lws2_32"; } || disable winsock2_h network
5943         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5944
5945         check_type ws2tcpip.h socklen_t
5946         check_type ws2tcpip.h "struct addrinfo"
5947         check_type ws2tcpip.h "struct group_source_req"
5948         check_type ws2tcpip.h "struct ip_mreq_source"
5949         check_type ws2tcpip.h "struct ipv6_mreq"
5950         check_type winsock2.h "struct pollfd"
5951         check_struct winsock2.h "struct sockaddr" sa_len
5952         check_type ws2tcpip.h "struct sockaddr_in6"
5953         check_type ws2tcpip.h "struct sockaddr_storage"
5954     else
5955         disable network
5956     fi
5957 fi
5958
5959 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5960 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5961 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5962 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5963 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5964 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5965 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5966
5967 case "$custom_allocator" in
5968     jemalloc)
5969         # jemalloc by default does not use a prefix
5970         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5971     ;;
5972     tcmalloc)
5973         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
5974         malloc_prefix=tc_
5975     ;;
5976 esac
5977
5978 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5979 check_func  ${malloc_prefix}memalign            && enable memalign
5980 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5981
5982 check_func  access
5983 check_func_headers stdlib.h arc4random
5984 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
5985 check_func  fcntl
5986 check_func  fork
5987 check_func  gethrtime
5988 check_func  getopt
5989 check_func  getrusage
5990 check_func  gettimeofday
5991 check_func  isatty
5992 check_func  mkstemp
5993 check_func  mmap
5994 check_func  mprotect
5995 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5996 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
5997 check_func  sched_getaffinity
5998 check_func  setrlimit
5999 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
6000 check_func  strerror_r
6001 check_func  sysconf
6002 check_func  sysctl
6003 check_func  usleep
6004
6005 check_func_headers conio.h kbhit
6006 check_func_headers io.h setmode
6007 check_func_headers lzo/lzo1x.h lzo1x_999_compress
6008 check_func_headers mach/mach_time.h mach_absolute_time
6009 check_func_headers stdlib.h getenv
6010 check_func_headers sys/stat.h lstat
6011
6012 check_func_headers windows.h GetProcessAffinityMask
6013 check_func_headers windows.h GetProcessTimes
6014 check_func_headers windows.h GetSystemTimeAsFileTime
6015 check_func_headers windows.h LoadLibrary
6016 check_func_headers windows.h MapViewOfFile
6017 check_func_headers windows.h PeekNamedPipe
6018 check_func_headers windows.h SetConsoleTextAttribute
6019 check_func_headers windows.h SetConsoleCtrlHandler
6020 check_func_headers windows.h Sleep
6021 check_func_headers windows.h VirtualAlloc
6022 check_func_headers glob.h glob
6023 enabled xlib &&
6024     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
6025
6026 check_headers direct.h
6027 check_headers dirent.h
6028 check_headers dxgidebug.h
6029 check_headers dxva.h
6030 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
6031 check_headers io.h
6032 check_headers linux/perf_event.h
6033 check_headers libcrystalhd/libcrystalhd_if.h
6034 check_headers malloc.h
6035 check_headers net/udplite.h
6036 check_headers poll.h
6037 check_headers sys/param.h
6038 check_headers sys/resource.h
6039 check_headers sys/select.h
6040 check_headers sys/time.h
6041 check_headers sys/un.h
6042 check_headers termios.h
6043 check_headers unistd.h
6044 check_headers valgrind/valgrind.h
6045 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6046 check_headers windows.h
6047 check_headers X11/extensions/XvMClib.h
6048 check_headers asm/types.h
6049
6050 # it seems there are versions of clang in some distros that try to use the
6051 # gcc headers, which explodes for stdatomic
6052 # so we also check that atomics actually work here
6053 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6054
6055 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6056 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6057     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6058 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6059 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6060 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6061
6062 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6063 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6064 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6065
6066 enabled appkit       && check_apple_framework AppKit
6067 enabled audiotoolbox && check_apple_framework AudioToolbox
6068 enabled avfoundation && check_apple_framework AVFoundation
6069 enabled coreimage    && check_apple_framework CoreImage
6070 enabled videotoolbox && check_apple_framework VideoToolbox
6071
6072 check_apple_framework CoreFoundation
6073 check_apple_framework CoreMedia
6074 check_apple_framework CoreVideo
6075
6076 enabled avfoundation && {
6077     disable coregraphics applicationservices
6078     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6079     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6080
6081 enabled videotoolbox && {
6082     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6083     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6084     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6085     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
6086     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
6087     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
6088 }
6089
6090 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6091
6092 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6093 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6094 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6095 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6096 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6097
6098 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6099 check_type "vdpau/vdpau.h" "VdpPictureInfoVP9"
6100
6101 if [ -z "$nvccflags" ]; then
6102     nvccflags=$nvccflags_default
6103 fi
6104
6105 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6106     nvccflags="$nvccflags -m64"
6107 else
6108     nvccflags="$nvccflags -m32"
6109 fi
6110
6111 if enabled cuda_nvcc; then
6112     nvccflags="$nvccflags -ptx"
6113 else
6114     nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
6115     check_nvcc cuda_llvm
6116 fi
6117
6118 if ! disabled ffnvcodec; then
6119     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6120     check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.0" "$ffnv_hdr_list" "" || \
6121       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.8 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6122       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.9 ffnvcodec < 8.2" "$ffnv_hdr_list" "" || \
6123       check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.9 ffnvcodec < 8.1" "$ffnv_hdr_list" ""
6124 fi
6125
6126 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6127
6128 if ! disabled w32threads && ! enabled pthreads; then
6129     check_func_headers "windows.h process.h" _beginthreadex &&
6130         check_type "windows.h" CONDITION_VARIABLE &&
6131         check_type "windows.h" INIT_ONCE &&
6132         enable w32threads || disable w32threads
6133     if ! enabled w32threads && enabled winrt; then
6134         check_func_headers "windows.h" CreateThread &&
6135             enable w32threads || disable w32threads
6136     fi
6137 fi
6138
6139 # check for some common methods of building with pthread support
6140 # do this before the optional library checks as some of them require pthreads
6141 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6142     if check_lib pthreads pthread.h pthread_join   -pthread &&
6143        check_lib pthreads pthread.h pthread_create -pthread; then
6144         add_cflags -pthread
6145     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6146          check_lib pthreads pthread.h pthread_create -pthreads; then
6147         add_cflags -pthreads
6148     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6149          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6150         add_cflags -ldl -pthread
6151     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6152          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6153         :
6154     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6155          check_lib pthreads pthread.h pthread_create -lpthread; then
6156         :
6157     elif check_func pthread_join && check_func pthread_create; then
6158         enable pthreads
6159     fi
6160     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6161
6162     if enabled pthreads; then
6163         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6164         check_func pthread_cancel $pthreads_extralibs
6165     fi
6166 fi
6167
6168 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6169                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6170 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6171 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6172
6173 # On some systems dynamic loading requires no extra linker flags
6174 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6175
6176 check_lib libm math.h sin -lm
6177
6178 atan2f_args=2
6179 copysign_args=2
6180 hypot_args=2
6181 ldexpf_args=2
6182 powf_args=2
6183
6184 for func in $MATH_FUNCS; do
6185     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6186 done
6187
6188 for func in $COMPLEX_FUNCS; do
6189     eval check_complexfunc $func \${${func}_args:-1}
6190 done
6191
6192 # these are off by default, so fail if requested and not available
6193 enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
6194 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6195 enabled decklink          && { require_headers DeckLinkAPI.h &&
6196                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6197 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6198 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6199 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6200 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6201 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6202 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6203 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6204                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6205                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6206 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6207 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6208 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6209 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6210 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6211 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6212                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6213                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6214 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6215 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6216 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d/dav1d.h" dav1d_version
6217 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6218 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6219 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6220 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6221                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6222                                  warn "using libfdk without pkg-config"; } }
6223 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"
6224 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6225 enabled fontconfig        && enable libfontconfig
6226 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6227 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6228 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6229 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6230                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6231 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6232                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6233                                done || die "ERROR: libgsm not found"; }
6234 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6235 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6236 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6237 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6238 # While it may appear that require is being used as a pkg-config
6239 # fallback for libmfx, it is actually being used to detect a different
6240 # installation route altogether.  If libmfx is installed via the Intel
6241 # Media SDK or Intel Media Server Studio, these don't come with
6242 # pkg-config support.  Instead, users should make sure that the build
6243 # can find the libraries and headers through other means.
6244 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6245                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6246 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6247 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6248 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine ||
6249                                require libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine -lmysofa $zlib_extralibs; }
6250 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6251                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6252                                die "ERROR: libnpp not found"; }
6253 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6254 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6255 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6256                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6257                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6258                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6259 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6260 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6261                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6262 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6263 enabled libopus           && {
6264     enabled libopus_decoder && {
6265         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6266     }
6267     enabled libopus_encoder && {
6268         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6269     }
6270 }
6271 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6272 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6273 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6274 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6275 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6276 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6277                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6278 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6279 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6280 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6281 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6282 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6283 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6284 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6285 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6286 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6287 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6288                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6289                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6290 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6291 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6292 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6293 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6294 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6295                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6296
6297 enabled libvpx            && {
6298     enabled libvpx_vp8_decoder && {
6299         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6300             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"
6301     }
6302     enabled libvpx_vp8_encoder && {
6303         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6304             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"
6305     }
6306     enabled libvpx_vp9_decoder && {
6307         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6308             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"
6309     }
6310     enabled libvpx_vp9_encoder && {
6311         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6312             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"
6313     }
6314     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6315         die "libvpx enabled but no supported decoders found"
6316     fi
6317 }
6318
6319 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6320 enabled libwebp           && {
6321     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6322     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6323 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6324                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6325                                  warn "using libx264 without pkg-config"; } } &&
6326                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6327                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6328 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6329                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6330 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6331 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6332 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6333 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6334 enabled libzmq            && require_pkg_config libzmq "libzmq >= 4.2.1" zmq.h zmq_ctx_new
6335 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6336                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6337                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6338 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6339 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6340                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6341                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6342                                die "ERROR: mbedTLS not found"; }
6343 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6344 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6345                                { ! enabled cross_compile &&
6346                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6347                                  add_ldflags -L/opt/vc/lib/ &&
6348                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6349                                die "ERROR: mmal not found" &&
6350                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6351 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6352                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6353                                die "ERROR: openal not found"; } &&
6354                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6355                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6356 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6357                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6358                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6359                                die "ERROR: opencl not found"; } &&
6360                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6361                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6362                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6363 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6364                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6365                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6366                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6367                                die "ERROR: opengl not found."
6368                              }
6369 enabled omx_rpi           && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame ||
6370                                { ! enabled cross_compile &&
6371                                  add_cflags -isystem/opt/vc/include/IL &&
6372                                  test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame; } ||
6373                                die "ERROR: OpenMAX IL headers from raspberrypi/firmware not found"; } &&
6374                              enable omx
6375 enabled omx               && require_headers OMX_Core.h
6376 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6377                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6378                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6379                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6380                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6381                                die "ERROR: openssl not found"; }
6382 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6383 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6384                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6385                                { enabled libdrm ||
6386                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6387                              }
6388 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6389
6390
6391 if enabled gcrypt; then
6392     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6393     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6394         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6395         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6396         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6397             die "ERROR: gcrypt not found"
6398         add_cflags $gcrypt_cflags
6399     else
6400         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6401     fi
6402 fi
6403
6404 if enabled sdl2; then
6405     SDL2_CONFIG="${cross_prefix}sdl2-config"
6406     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6407     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6408         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6409         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6410         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6411         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6412         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6413             enable sdl2
6414     fi
6415     if test $target_os = "mingw32"; then
6416         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6417     fi
6418 fi
6419
6420 if enabled decklink; then
6421     case $target_os in
6422         mingw32*|mingw64*|win32|win64)
6423             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6424             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6425             ;;
6426     esac
6427 fi
6428
6429 enabled securetransport &&
6430     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6431     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6432         disable securetransport
6433
6434 enabled securetransport &&
6435     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6436
6437 enabled schannel &&
6438     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6439     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6440     schannel_extralibs="-lsecur32" ||
6441         disable schannel
6442
6443 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6444 enabled makeinfo \
6445     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6446     && enable makeinfo_html || disable makeinfo_html
6447 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6448 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6449 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6450 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6451
6452 # check V4L2 codecs available in the API
6453 if enabled v4l2_m2m; then
6454     check_headers linux/fb.h
6455     check_headers linux/videodev2.h
6456     test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6457     check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6458     check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6459     check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6460     check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6461     check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6462     check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6463     check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6464     check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6465     check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6466     check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6467 fi
6468
6469 check_headers sys/videoio.h
6470 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6471
6472 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6473 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6474 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6475 # w32api 3.12 had it defined wrong
6476 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6477
6478 check_type "dshow.h" IBaseFilter
6479
6480 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6481 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6482     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6483     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6484     check_headers "dev/ic/bt8xx.h"
6485
6486 if check_struct sys/soundcard.h audio_buf_info bytes; then
6487     enable_sanitized sys/soundcard.h
6488 else
6489     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6490     #include <sys/soundcard.h>
6491     audio_buf_info abc;
6492 EOF
6493 fi
6494
6495 enabled alsa && { check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6496                   check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound; }
6497
6498 enabled libjack &&
6499     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6500
6501 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6502
6503 if enabled libcdio; then
6504     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6505     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6506     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6507     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6508     die "ERROR: No usable libcdio/cdparanoia found"
6509 fi
6510
6511 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6512     disable libxcb_shm libxcb_shape libxcb_xfixes
6513
6514 if enabled libxcb; then
6515     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6516     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6517     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6518 fi
6519
6520 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6521
6522 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6523 # the desktop api partition
6524 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6525 #ifdef WINAPI_FAMILY
6526 #include <winapifamily.h>
6527 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6528 #error desktop, not uwp
6529 #else
6530 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6531 #endif
6532 #else
6533 #error no family set
6534 #endif
6535 EOF
6536
6537 enabled vaapi &&
6538     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6539
6540 if enabled vaapi; then
6541     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6542
6543     if enabled xlib; then
6544         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6545     fi
6546
6547     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6548
6549     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6550     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6551     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6552     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6553     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6554     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6555     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6556 fi
6557
6558 if enabled_all opencl libdrm ; then
6559     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6560         enable opencl_drm_beignet
6561     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6562         enable opencl_drm_arm
6563 fi
6564
6565 if enabled_all opencl vaapi ; then
6566     if enabled opencl_drm_beignet ; then
6567         enable opencl_vaapi_beignet
6568     else
6569         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6570             enable opencl_vaapi_intel_media
6571     fi
6572 fi
6573
6574 if enabled_all opencl dxva2 ; then
6575     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6576         enable opencl_dxva2
6577 fi
6578
6579 if enabled_all opencl d3d11va ; then
6580     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6581         enable opencl_d3d11
6582 fi
6583
6584 enabled vdpau &&
6585     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6586
6587 enabled vdpau &&
6588     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6589
6590 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6591
6592 if enabled x86; then
6593     case $target_os in
6594         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6595             ;;
6596         *)
6597             disable ffnvcodec cuvid nvdec nvenc
6598             ;;
6599     esac
6600 elif enabled ppc64 && ! enabled bigendian; then
6601     case $target_os in
6602         linux)
6603             ;;
6604         *)
6605             disable ffnvcodec cuvid nvdec nvenc
6606             ;;
6607     esac
6608 else
6609     disable ffnvcodec cuvid nvdec nvenc
6610 fi
6611
6612 enabled ffnvcodec && enable cuda
6613
6614 enabled nvenc &&
6615     test_cc -I$source_path <<EOF || disable nvenc
6616 #include <ffnvcodec/nvEncodeAPI.h>
6617 NV_ENCODE_API_FUNCTION_LIST flist;
6618 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6619 int main(void) { return 0; }
6620 EOF
6621
6622 enabled amf &&
6623     check_cpp_condition amf "AMF/core/Version.h" \
6624         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400090000"
6625
6626 # Funny iconv installations are not unusual, so check it after all flags have been set
6627 if enabled libc_iconv; then
6628     check_func_headers iconv.h iconv
6629 elif enabled iconv; then
6630     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6631 fi
6632
6633 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6634
6635 # add some useful compiler flags if supported
6636 check_cflags -Wdeclaration-after-statement
6637 check_cflags -Wall
6638 check_cflags -Wdisabled-optimization
6639 check_cflags -Wpointer-arith
6640 check_cflags -Wredundant-decls
6641 check_cflags -Wwrite-strings
6642 check_cflags -Wtype-limits
6643 check_cflags -Wundef
6644 check_cflags -Wmissing-prototypes
6645 check_cflags -Wno-pointer-to-int-cast
6646 check_cflags -Wstrict-prototypes
6647 check_cflags -Wempty-body
6648
6649 if enabled extra_warnings; then
6650     check_cflags -Wcast-qual
6651     check_cflags -Wextra
6652     check_cflags -Wpedantic
6653 fi
6654
6655 check_disable_warning(){
6656     warning_flag=-W${1#-Wno-}
6657     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6658 }
6659
6660 test_cflags -Werror=unused-command-line-argument &&
6661     append unknown_warning_flags "-Werror=unused-command-line-argument"
6662 test_cflags -Werror=unknown-warning-option &&
6663     append unknown_warning_flags "-Werror=unknown-warning-option"
6664
6665 check_disable_warning -Wno-parentheses
6666 check_disable_warning -Wno-switch
6667 check_disable_warning -Wno-format-zero-length
6668 check_disable_warning -Wno-pointer-sign
6669 check_disable_warning -Wno-unused-const-variable
6670 check_disable_warning -Wno-bool-operation
6671 check_disable_warning -Wno-char-subscripts
6672
6673 check_disable_warning_headers(){
6674     warning_flag=-W${1#-Wno-}
6675     test_cflags $warning_flag && add_cflags_headers $1
6676 }
6677
6678 check_disable_warning_headers -Wno-deprecated-declarations
6679 check_disable_warning_headers -Wno-unused-variable
6680
6681 test_cc <<EOF && enable blocks_extension
6682 void (^block)(void);
6683 EOF
6684
6685 # add some linker flags
6686 check_ldflags -Wl,--warn-common
6687 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6688 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6689 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6690
6691 # add some strip flags
6692 check_stripflags -x
6693
6694 enabled neon_clobber_test &&
6695     check_ldflags -Wl,--wrap,avcodec_open2              \
6696                   -Wl,--wrap,avcodec_decode_audio4      \
6697                   -Wl,--wrap,avcodec_decode_video2      \
6698                   -Wl,--wrap,avcodec_decode_subtitle2   \
6699                   -Wl,--wrap,avcodec_encode_audio2      \
6700                   -Wl,--wrap,avcodec_encode_video2      \
6701                   -Wl,--wrap,avcodec_encode_subtitle    \
6702                   -Wl,--wrap,avcodec_send_packet        \
6703                   -Wl,--wrap,avcodec_receive_packet     \
6704                   -Wl,--wrap,avcodec_send_frame         \
6705                   -Wl,--wrap,avcodec_receive_frame      \
6706                   -Wl,--wrap,swr_convert                \
6707                   -Wl,--wrap,avresample_convert ||
6708     disable neon_clobber_test
6709
6710 enabled xmm_clobber_test &&
6711     check_ldflags -Wl,--wrap,avcodec_open2              \
6712                   -Wl,--wrap,avcodec_decode_audio4      \
6713                   -Wl,--wrap,avcodec_decode_video2      \
6714                   -Wl,--wrap,avcodec_decode_subtitle2   \
6715                   -Wl,--wrap,avcodec_encode_audio2      \
6716                   -Wl,--wrap,avcodec_encode_video2      \
6717                   -Wl,--wrap,avcodec_encode_subtitle    \
6718                   -Wl,--wrap,avcodec_send_packet        \
6719                   -Wl,--wrap,avcodec_receive_packet     \
6720                   -Wl,--wrap,avcodec_send_frame         \
6721                   -Wl,--wrap,avcodec_receive_frame      \
6722                   -Wl,--wrap,swr_convert                \
6723                   -Wl,--wrap,avresample_convert         \
6724                   -Wl,--wrap,sws_scale ||
6725     disable xmm_clobber_test
6726
6727 check_ld "cc" proper_dce <<EOF
6728 extern const int array[512];
6729 static inline int func(void) { return array[0]; }
6730 int main(void) { return 0; }
6731 EOF
6732
6733 if enabled proper_dce; then
6734     echo "X { local: *; };" > $TMPV
6735     if test_ldflags -Wl,${version_script},$TMPV; then
6736         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6737         quotes='""'
6738         test_cc <<EOF && enable symver_asm_label
6739 void ff_foo(void) __asm__ ("av_foo@VERSION");
6740 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6741 EOF
6742         test_cc <<EOF && enable symver_gnu_asm
6743 __asm__(".symver ff_foo,av_foo@VERSION");
6744 void ff_foo(void) {}
6745 EOF
6746     fi
6747 fi
6748
6749 if [ -z "$optflags" ]; then
6750     if enabled small; then
6751         optflags=$cflags_size
6752     elif enabled optimizations; then
6753         optflags=$cflags_speed
6754     else
6755         optflags=$cflags_noopt
6756     fi
6757 fi
6758
6759 check_optflags(){
6760     check_cflags "$@"
6761     enabled lto && check_ldflags "$@"
6762 }
6763
6764 check_optflags $optflags
6765 check_optflags -fno-math-errno
6766 check_optflags -fno-signed-zeros
6767
6768 if enabled lto; then
6769     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6770     check_cflags  -flto
6771     check_ldflags -flto $cpuflags
6772     disable inline_asm_direct_symbol_refs
6773 fi
6774
6775 enabled ftrapv && check_cflags -ftrapv
6776
6777 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6778 int x;
6779 EOF
6780
6781
6782 if enabled icc; then
6783     # Just warnings, no remarks
6784     check_cflags -w1
6785     # -wd: Disable following warnings
6786     # 144, 167, 556: -Wno-pointer-sign
6787     # 188: enumerated type mixed with another type
6788     # 1292: attribute "foo" ignored
6789     # 1419: external declaration in primary source file
6790     # 10006: ignoring unknown option -fno-signed-zeros
6791     # 10148: ignoring unknown option -Wno-parentheses
6792     # 10156: ignoring option '-W'; no argument required
6793     # 13200: No EMMS instruction before call to function
6794     # 13203: No EMMS instruction before return from function
6795     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6796     # 11030: Warning unknown option --as-needed
6797     # 10156: ignoring option '-export'; no argument required
6798     check_ldflags -wd10156,11030
6799     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6800     enable ebp_available
6801     # The test above does not test linking
6802     enabled lto && disable symver_asm_label
6803     if enabled x86_32; then
6804         icc_version=$($cc -dumpversion)
6805         test ${icc_version%%.*} -ge 11 &&
6806             check_cflags -falign-stack=maintain-16-byte ||
6807             disable aligned_stack
6808     fi
6809 elif enabled gcc; then
6810     check_optflags -fno-tree-vectorize
6811     check_cflags -Werror=format-security
6812     check_cflags -Werror=implicit-function-declaration
6813     check_cflags -Werror=missing-prototypes
6814     check_cflags -Werror=return-type
6815     check_cflags -Werror=vla
6816     check_cflags -Wformat
6817     check_cflags -fdiagnostics-color=auto
6818     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6819     if enabled x86_32; then
6820         case $target_os in
6821         *bsd*)
6822             # BSDs don't guarantee a 16 byte aligned stack, but we can
6823             # request GCC to try to maintain 16 byte alignment throughout
6824             # function calls. Library entry points that might call assembly
6825             # functions align the stack. (The parameter means 2^4 bytes.)
6826             check_cflags -mpreferred-stack-boundary=4
6827             ;;
6828         esac
6829     fi
6830 elif enabled llvm_gcc; then
6831     check_cflags -mllvm -stack-alignment=16
6832 elif enabled clang; then
6833     if enabled x86_32; then
6834         # Clang doesn't support maintaining alignment without assuming the
6835         # same alignment in every function. If 16 byte alignment would be
6836         # enabled, one would also have to either add attribute_align_arg on
6837         # every single entry point into the libraries or enable -mstackrealign
6838         # (doing stack realignment in every single function).
6839         case $target_os in
6840         mingw32|win32|*bsd*)
6841             disable aligned_stack
6842             ;;
6843         *)
6844             check_cflags -mllvm -stack-alignment=16
6845             check_cflags -mstack-alignment=16
6846             ;;
6847         esac
6848     else
6849         check_cflags -mllvm -stack-alignment=16
6850         check_cflags -mstack-alignment=16
6851     fi
6852     check_cflags -Qunused-arguments
6853     check_cflags -Werror=implicit-function-declaration
6854     check_cflags -Werror=missing-prototypes
6855     check_cflags -Werror=return-type
6856 elif enabled cparser; then
6857     add_cflags -Wno-missing-variable-declarations
6858     add_cflags -Wno-empty-statement
6859 elif enabled armcc; then
6860     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6861     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6862     # 2523: use of inline assembly is deprecated
6863     add_cflags -W${armcc_opt},--diag_suppress=2523
6864     add_cflags -W${armcc_opt},--diag_suppress=1207
6865     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6866     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6867     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6868     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6869 elif enabled pathscale; then
6870     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6871     disable inline_asm
6872 elif enabled_any msvc icl; then
6873     enabled x86_32 && disable aligned_stack
6874     enabled_all x86_32 debug && add_cflags -Oy-
6875     enabled debug && add_ldflags -debug
6876     enable pragma_deprecated
6877     if enabled icl; then
6878         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6879         # (correctly) on icl 13.x.
6880         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6881             add_cflags -Qansi-alias
6882         # Some inline asm is not compilable in debug
6883         if enabled debug; then
6884             disable ebp_available
6885             disable ebx_available
6886         fi
6887     fi
6888     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6889     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6890     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6891     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6892     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6893     # MSVC 2013 and newer can handle it fine.
6894     # If this declspec fails, force including stdlib.h before the restrict redefinition
6895     # happens in config.h.
6896     if [ $restrict_keyword != restrict ]; then
6897         test_cc <<EOF || add_cflags -FIstdlib.h
6898 __declspec($restrict_keyword) void *foo(int);
6899 EOF
6900     fi
6901     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6902     # Issue has been fixed in MSVC v19.00.24218.
6903     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6904         check_cflags -d2SSAOptimizer-
6905     # enable utf-8 source processing on VS2015 U2 and newer
6906     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6907         add_cflags -utf-8
6908 fi
6909
6910 for pfx in "" host_; do
6911     varname=${pfx%_}cc_type
6912     eval "type=\$$varname"
6913     if [ "$type" = "msvc" ]; then
6914         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6915 static inline int foo(int a) { return a; }
6916 EOF
6917     fi
6918 done
6919
6920 case $as_type in
6921     clang)
6922         add_asflags -Qunused-arguments
6923     ;;
6924 esac
6925
6926 case $ld_type in
6927     clang)
6928         check_ldflags -Qunused-arguments
6929     ;;
6930 esac
6931
6932 enable frame_thread_encoder
6933
6934 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6935
6936 check_deps $CONFIG_LIST       \
6937            $CONFIG_EXTRA      \
6938            $HAVE_LIST         \
6939            $ALL_COMPONENTS    \
6940
6941 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"
6942 enabled avresample && warn "Building with deprecated library libavresample"
6943
6944 case $target_os in
6945 haiku)
6946     disable memalign
6947     disable posix_memalign
6948     ;;
6949 *-dos|freedos|opendos)
6950     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6951         disable memalign
6952     fi
6953     ;;
6954 esac
6955
6956 flatten_extralibs(){
6957     nested_entries=
6958     list_name=$1
6959     eval list=\$${1}
6960     for entry in $list; do
6961         entry_copy=$entry
6962         resolve entry_copy
6963         flat_entries=
6964         for e in $entry_copy; do
6965             case $e in
6966                 *_extralibs) nested_entries="$nested_entries$e ";;
6967                           *) flat_entries="$flat_entries$e ";;
6968             esac
6969         done
6970         eval $entry="\$flat_entries"
6971     done
6972     append $list_name "$nested_entries"
6973
6974     resolve nested_entries
6975     if test -n "$(filter '*_extralibs' $nested_entries)"; then
6976         flatten_extralibs $list_name
6977     fi
6978 }
6979
6980 flatten_extralibs_wrapper(){
6981     list_name=$1
6982     flatten_extralibs $list_name
6983     unique $list_name
6984     resolve $list_name
6985     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
6986     eval printf \''%s'\' \""\$$list_name"\"
6987 }
6988
6989 for linkunit in $LIBRARY_LIST; do
6990     unset current_extralibs
6991     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
6992     for comp in ${components}; do
6993         enabled $comp || continue
6994         comp_extralibs="${comp}_extralibs"
6995         append current_extralibs $comp_extralibs
6996     done
6997     eval prepend ${linkunit}_extralibs $current_extralibs
6998 done
6999
7000 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7001     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
7002 done
7003
7004 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
7005
7006 for thread in $THREADS_LIST; do
7007     if enabled $thread; then
7008         test -n "$thread_type" &&
7009             die "ERROR: Only one thread type must be selected." ||
7010             thread_type="$thread"
7011     fi
7012 done
7013
7014 if disabled stdatomic; then
7015     if enabled atomics_gcc; then
7016         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
7017     elif enabled atomics_win32; then
7018         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
7019     elif enabled atomics_suncc; then
7020         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
7021     elif enabled pthreads; then
7022         add_compat atomics/pthread/stdatomic.o
7023         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
7024     else
7025         enabled threads && die "Threading is enabled, but no atomics are available"
7026         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
7027     fi
7028 fi
7029
7030 # Check if requested libraries were found.
7031 for lib in $AUTODETECT_LIBS; do
7032     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
7033 done
7034
7035 enabled zlib && add_cppflags -DZLIB_CONST
7036
7037 # conditional library dependencies, in any order
7038 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
7039 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
7040 enabled afir_filter         && prepend avfilter_deps "avcodec"
7041 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
7042 enabled aresample_filter    && prepend avfilter_deps "swresample"
7043 enabled atempo_filter       && prepend avfilter_deps "avcodec"
7044 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7045 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7046 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7047 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7048 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7049 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7050 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7051 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7052 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7053 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7054 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7055 enabled pan_filter          && prepend avfilter_deps "swresample"
7056 enabled pp_filter           && prepend avfilter_deps "postproc"
7057 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7058 enabled resample_filter && prepend avfilter_deps "avresample"
7059 enabled sab_filter          && prepend avfilter_deps "swscale"
7060 enabled scale_filter    && prepend avfilter_deps "swscale"
7061 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7062 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7063 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7064 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7065 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7066 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7067 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7068 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7069 enabled spp_filter          && prepend avfilter_deps "avcodec"
7070 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7071 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7072 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7073 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7074
7075 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7076
7077 #FIXME
7078 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7079     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7080
7081 enabled opus_decoder    && prepend avcodec_deps "swresample"
7082
7083 # reorder the items at var $1 to align with the items order at var $2 .
7084 # die if an item at $1 is not at $2 .
7085 reorder_by(){
7086     eval rb_in=\$$1
7087     eval rb_ordered=\$$2
7088
7089     for rb in $rb_in; do
7090         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7091     done
7092
7093     rb_out=
7094     for rb in $rb_ordered; do
7095         is_in $rb $rb_in && rb_out="$rb_out$rb "
7096     done
7097     eval $1=\$rb_out
7098 }
7099
7100 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7101 # within a set of N items, N expansions are enough to expose a cycle.
7102 expand_deps(){
7103     unique ${1}_deps  # required for the early break test.
7104     for dummy in $LIBRARY_LIST; do  # N iteratios
7105         eval deps=\$${1}_deps
7106         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7107         unique ${1}_deps
7108         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7109     done
7110
7111     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7112     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7113 }
7114
7115 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7116 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7117
7118 map 'expand_deps $v' $LIBRARY_LIST
7119
7120 if test "$quiet" != "yes"; then
7121
7122 echo "install prefix            $prefix"
7123 echo "source path               $source_path"
7124 echo "C compiler                $cc"
7125 echo "C library                 $libc_type"
7126 if test "$host_cc" != "$cc"; then
7127     echo "host C compiler           $host_cc"
7128     echo "host C library            $host_libc_type"
7129 fi
7130 echo "ARCH                      $arch ($cpu)"
7131 if test "$build_suffix" != ""; then
7132     echo "build suffix              $build_suffix"
7133 fi
7134 if test "$progs_suffix" != ""; then
7135     echo "progs suffix              $progs_suffix"
7136 fi
7137 if test "$extra_version" != ""; then
7138     echo "version string suffix     $extra_version"
7139 fi
7140 echo "big-endian                ${bigendian-no}"
7141 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7142 if enabled x86; then
7143     echo "standalone assembly       ${x86asm-no}"
7144     echo "x86 assembler             ${x86asmexe}"
7145     echo "MMX enabled               ${mmx-no}"
7146     echo "MMXEXT enabled            ${mmxext-no}"
7147     echo "3DNow! enabled            ${amd3dnow-no}"
7148     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7149     echo "SSE enabled               ${sse-no}"
7150     echo "SSSE3 enabled             ${ssse3-no}"
7151     echo "AESNI enabled             ${aesni-no}"
7152     echo "AVX enabled               ${avx-no}"
7153     echo "AVX2 enabled              ${avx2-no}"
7154     echo "AVX-512 enabled           ${avx512-no}"
7155     echo "XOP enabled               ${xop-no}"
7156     echo "FMA3 enabled              ${fma3-no}"
7157     echo "FMA4 enabled              ${fma4-no}"
7158     echo "i686 features enabled     ${i686-no}"
7159     echo "CMOV is fast              ${fast_cmov-no}"
7160     echo "EBX available             ${ebx_available-no}"
7161     echo "EBP available             ${ebp_available-no}"
7162 fi
7163 if enabled aarch64; then
7164     echo "NEON enabled              ${neon-no}"
7165     echo "VFP enabled               ${vfp-no}"
7166 fi
7167 if enabled arm; then
7168     echo "ARMv5TE enabled           ${armv5te-no}"
7169     echo "ARMv6 enabled             ${armv6-no}"
7170     echo "ARMv6T2 enabled           ${armv6t2-no}"
7171     echo "VFP enabled               ${vfp-no}"
7172     echo "NEON enabled              ${neon-no}"
7173     echo "THUMB enabled             ${thumb-no}"
7174 fi
7175 if enabled mips; then
7176     echo "MIPS FPU enabled          ${mipsfpu-no}"
7177     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7178     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7179     echo "MIPS MSA enabled          ${msa-no}"
7180     echo "MIPS MSA2 enabled         ${msa2-no}"
7181     echo "LOONGSON MMI enabled      ${mmi-no}"
7182 fi
7183 if enabled ppc; then
7184     echo "AltiVec enabled           ${altivec-no}"
7185     echo "VSX enabled               ${vsx-no}"
7186     echo "POWER8 enabled            ${power8-no}"
7187     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7188     echo "dcbzl available           ${dcbzl-no}"
7189 fi
7190 echo "debug symbols             ${debug-no}"
7191 echo "strip symbols             ${stripping-no}"
7192 echo "optimize for size         ${small-no}"
7193 echo "optimizations             ${optimizations-no}"
7194 echo "static                    ${static-no}"
7195 echo "shared                    ${shared-no}"
7196 echo "postprocessing support    ${postproc-no}"
7197 echo "network support           ${network-no}"
7198 echo "threading support         ${thread_type-no}"
7199 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7200 echo "texi2html enabled         ${texi2html-no}"
7201 echo "perl enabled              ${perl-no}"
7202 echo "pod2man enabled           ${pod2man-no}"
7203 echo "makeinfo enabled          ${makeinfo-no}"
7204 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7205 test -n "$random_seed" &&
7206     echo "random seed               ${random_seed}"
7207 echo
7208
7209 echo "External libraries:"
7210 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7211 echo
7212
7213 echo "External libraries providing hardware acceleration:"
7214 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7215 echo
7216
7217 echo "Libraries:"
7218 print_enabled '' $LIBRARY_LIST | print_in_columns
7219 echo
7220
7221 echo "Programs:"
7222 print_enabled '' $PROGRAM_LIST | print_in_columns
7223 echo
7224
7225 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7226     echo "Enabled ${type}s:"
7227     eval list=\$$(toupper $type)_LIST
7228     print_enabled '_*' $list | print_in_columns
7229     echo
7230 done
7231
7232 if test -n "$ignore_tests"; then
7233     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7234     echo "Ignored FATE tests:"
7235     echo $ignore_tests | print_in_columns
7236     echo
7237 fi
7238
7239 echo "License: $license"
7240
7241 fi # test "$quiet" != "yes"
7242
7243 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7244     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7245         if disabled $cfg; then
7246             varname=${cfg}_disable_reason
7247             eval "warn \"Disabled $cfg because \$$varname\""
7248         fi
7249     done
7250 fi
7251
7252 if test -n "$WARNINGS"; then
7253     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7254     enabled fatal_warnings && exit 1
7255 fi
7256
7257 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7258
7259 esc(){
7260     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7261 }
7262
7263 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7264
7265 enabled stripping || strip="echo skipping strip"
7266 enabled stripping || striptype=""
7267
7268 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7269
7270 cat > ffbuild/config.mak <<EOF
7271 # Automatically generated by configure - do not modify!
7272 ifndef FFMPEG_CONFIG_MAK
7273 FFMPEG_CONFIG_MAK=1
7274 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7275 prefix=$prefix
7276 LIBDIR=\$(DESTDIR)$libdir
7277 SHLIBDIR=\$(DESTDIR)$shlibdir
7278 INCDIR=\$(DESTDIR)$incdir
7279 BINDIR=\$(DESTDIR)$bindir
7280 DATADIR=\$(DESTDIR)$datadir
7281 DOCDIR=\$(DESTDIR)$docdir
7282 MANDIR=\$(DESTDIR)$mandir
7283 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7284 INSTALL_NAME_DIR=$install_name_dir
7285 SRC_PATH=$source_path
7286 SRC_LINK=$source_link
7287 ifndef MAIN_MAKEFILE
7288 SRC_PATH:=\$(SRC_PATH:.%=..%)
7289 endif
7290 CC_IDENT=$cc_ident
7291 ARCH=$arch
7292 INTRINSICS=$intrinsics
7293 EXTERN_PREFIX=$extern_prefix
7294 CC=$cc
7295 CXX=$cxx
7296 AS=$as
7297 OBJCC=$objcc
7298 LD=$ld
7299 DEPCC=$dep_cc
7300 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7301 DEPAS=$as
7302 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7303 X86ASM=$x86asmexe
7304 DEPX86ASM=$x86asmexe
7305 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7306 AR=$ar
7307 ARFLAGS=$arflags
7308 AR_O=$ar_o
7309 AR_CMD=$ar
7310 NM_CMD=$nm
7311 RANLIB=$ranlib
7312 STRIP=$strip
7313 STRIPTYPE=$striptype
7314 NVCC=$nvcc
7315 CP=cp -p
7316 LN_S=$ln_s
7317 CPPFLAGS=$CPPFLAGS
7318 CFLAGS=$CFLAGS
7319 CXXFLAGS=$CXXFLAGS
7320 OBJCFLAGS=$OBJCFLAGS
7321 ASFLAGS=$ASFLAGS
7322 NVCCFLAGS=$nvccflags
7323 AS_C=$AS_C
7324 AS_O=$AS_O
7325 OBJCC_C=$OBJCC_C
7326 OBJCC_E=$OBJCC_E
7327 OBJCC_O=$OBJCC_O
7328 CC_C=$CC_C
7329 CC_E=$CC_E
7330 CC_O=$CC_O
7331 CXX_C=$CXX_C
7332 CXX_O=$CXX_O
7333 NVCC_C=$NVCC_C
7334 NVCC_O=$NVCC_O
7335 LD_O=$LD_O
7336 X86ASM_O=$X86ASM_O
7337 LD_LIB=$LD_LIB
7338 LD_PATH=$LD_PATH
7339 DLLTOOL=$dlltool
7340 WINDRES=$windres
7341 DEPWINDRES=$dep_cc
7342 DOXYGEN=$doxygen
7343 LDFLAGS=$LDFLAGS
7344 LDEXEFLAGS=$LDEXEFLAGS
7345 LDSOFLAGS=$LDSOFLAGS
7346 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7347 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7348 X86ASMFLAGS=$X86ASMFLAGS
7349 BUILDSUF=$build_suffix
7350 PROGSSUF=$progs_suffix
7351 FULLNAME=$FULLNAME
7352 LIBPREF=$LIBPREF
7353 LIBSUF=$LIBSUF
7354 LIBNAME=$LIBNAME
7355 SLIBPREF=$SLIBPREF
7356 SLIBSUF=$SLIBSUF
7357 EXESUF=$EXESUF
7358 EXTRA_VERSION=$extra_version
7359 CCDEP=$CCDEP
7360 CXXDEP=$CXXDEP
7361 CCDEP_FLAGS=$CCDEP_FLAGS
7362 ASDEP=$ASDEP
7363 ASDEP_FLAGS=$ASDEP_FLAGS
7364 X86ASMDEP=$X86ASMDEP
7365 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7366 CC_DEPFLAGS=$CC_DEPFLAGS
7367 AS_DEPFLAGS=$AS_DEPFLAGS
7368 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7369 HOSTCC=$host_cc
7370 HOSTLD=$host_ld
7371 HOSTCFLAGS=$host_cflags
7372 HOSTCPPFLAGS=$host_cppflags
7373 HOSTEXESUF=$HOSTEXESUF
7374 HOSTLDFLAGS=$host_ldflags
7375 HOSTEXTRALIBS=$host_extralibs
7376 DEPHOSTCC=$host_cc
7377 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7378 HOSTCCDEP=$HOSTCCDEP
7379 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7380 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7381 HOSTCC_C=$HOSTCC_C
7382 HOSTCC_O=$HOSTCC_O
7383 HOSTLD_O=$HOSTLD_O
7384 TARGET_EXEC=$target_exec $target_exec_args
7385 TARGET_PATH=$target_path
7386 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7387 CFLAGS-ffplay=${sdl2_cflags}
7388 CFLAGS_HEADERS=$CFLAGS_HEADERS
7389 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7390 EXTRALIBS=$extralibs
7391 COMPAT_OBJS=$compat_objs
7392 INSTALL=$install
7393 LIBTARGET=${LIBTARGET}
7394 SLIBNAME=${SLIBNAME}
7395 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7396 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7397 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7398 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7399 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7400 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7401 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7402 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7403 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7404 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7405 NOREDZONE_FLAGS=$noredzone_flags
7406 LIBFUZZER_PATH=$libfuzzer_path
7407 IGNORE_TESTS=$ignore_tests
7408 EOF
7409
7410 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7411
7412 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7413     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7414 done
7415
7416 cat > $TMPH <<EOF
7417 /* Automatically generated by configure - do not modify! */
7418 #ifndef FFMPEG_CONFIG_H
7419 #define FFMPEG_CONFIG_H
7420 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7421 #define FFMPEG_LICENSE "$(c_escape $license)"
7422 #define CONFIG_THIS_YEAR 2019
7423 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7424 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7425 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7426 #define av_restrict $restrict_keyword
7427 #define EXTERN_PREFIX "${extern_prefix}"
7428 #define EXTERN_ASM ${extern_prefix}
7429 #define BUILDSUF "$build_suffix"
7430 #define SLIBSUF "$SLIBSUF"
7431 #define HAVE_MMX2 HAVE_MMXEXT
7432 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7433 EOF
7434
7435 test -n "$assert_level" &&
7436     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7437
7438 test -n "$malloc_prefix" &&
7439     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7440
7441 if enabled x86asm; then
7442     append config_files $TMPASM
7443     cat > $TMPASM <<EOF
7444 ; Automatically generated by configure - do not modify!
7445 EOF
7446 fi
7447
7448 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7449
7450
7451 mkdir -p doc
7452 mkdir -p tests
7453 mkdir -p tests/api
7454 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7455
7456 print_config ARCH_   "$config_files" $ARCH_LIST
7457 print_config HAVE_   "$config_files" $HAVE_LIST
7458 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7459                                      $CONFIG_EXTRA      \
7460                                      $ALL_COMPONENTS    \
7461
7462 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7463 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7464
7465 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7466 cp_if_changed $TMPH config.h
7467 touch ffbuild/.config
7468
7469 enabled x86asm && cp_if_changed $TMPASM config.asm
7470
7471 cat > $TMPH <<EOF
7472 /* Generated by ffmpeg configure */
7473 #ifndef AVUTIL_AVCONFIG_H
7474 #define AVUTIL_AVCONFIG_H
7475 EOF
7476
7477 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7478
7479 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7480
7481 cp_if_changed $TMPH libavutil/avconfig.h
7482
7483 # full_filter_name_foo=vf_foo
7484 # full_filter_name_bar=asrc_bar
7485 # ...
7486 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7487
7488 # generate the lists of enabled components
7489 print_enabled_components(){
7490     file=$1
7491     struct_name=$2
7492     name=$3
7493     shift 3
7494     echo "static const $struct_name * const $name[] = {" > $TMPH
7495     for c in $*; do
7496         if enabled $c; then
7497             case $name in
7498                 filter_list)
7499                     eval c=\$full_filter_name_${c%_filter}
7500                 ;;
7501                 indev_list)
7502                     c=${c%_indev}_demuxer
7503                 ;;
7504                 outdev_list)
7505                     c=${c%_outdev}_muxer
7506                 ;;
7507             esac
7508             printf "    &ff_%s,\n" $c >> $TMPH
7509         fi
7510     done
7511     if [ "$name" = "filter_list" ]; then
7512         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7513             printf "    &ff_%s,\n" $c >> $TMPH
7514         done
7515     fi
7516     echo "    NULL };" >> $TMPH
7517     cp_if_changed $TMPH $file
7518 }
7519
7520 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7521 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7522 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7523 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7524 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7525 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7526 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7527 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7528 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7529
7530 # Settings for pkg-config files
7531
7532 cat > $TMPH <<EOF
7533 # Automatically generated by configure - do not modify!
7534 shared=$shared
7535 build_suffix=$build_suffix
7536 prefix=$prefix
7537 libdir=$libdir
7538 incdir=$incdir
7539 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7540 source_path=${source_path}
7541 LIBPREF=${LIBPREF}
7542 LIBSUF=${LIBSUF}
7543 extralibs_avutil="$avutil_extralibs"
7544 extralibs_avcodec="$avcodec_extralibs"
7545 extralibs_avformat="$avformat_extralibs"
7546 extralibs_avdevice="$avdevice_extralibs"
7547 extralibs_avfilter="$avfilter_extralibs"
7548 extralibs_avresample="$avresample_extralibs"
7549 extralibs_postproc="$postproc_extralibs"
7550 extralibs_swscale="$swscale_extralibs"
7551 extralibs_swresample="$swresample_extralibs"
7552 EOF
7553
7554 for lib in $LIBRARY_LIST; do
7555     lib_deps="$(eval echo \$${lib}_deps)"
7556     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7557 done
7558
7559 cp_if_changed $TMPH ffbuild/config.sh