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_d10_muxer_select="mxf_muxer"
3277 mxf_opatom_muxer_select="mxf_muxer"
3278 nut_muxer_select="riffenc"
3279 nuv_demuxer_select="riffdec"
3280 oga_muxer_select="ogg_muxer"
3281 ogg_demuxer_select="dirac_parse"
3282 ogv_muxer_select="ogg_muxer"
3283 opus_muxer_select="ogg_muxer"
3284 psp_muxer_select="mov_muxer"
3285 rtp_demuxer_select="sdp_demuxer"
3286 rtp_muxer_select="golomb"
3287 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3288 rtsp_demuxer_select="http_protocol rtpdec"
3289 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3290 sap_demuxer_select="sdp_demuxer"
3291 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3292 sdp_demuxer_select="rtpdec"
3293 smoothstreaming_muxer_select="ismv_muxer"
3294 spdif_demuxer_select="adts_header"
3295 spdif_muxer_select="adts_header"
3296 spx_muxer_select="ogg_muxer"
3297 swf_demuxer_suggest="zlib"
3298 tak_demuxer_select="tak_parser"
3299 tg2_muxer_select="mov_muxer"
3300 tgp_muxer_select="mov_muxer"
3301 vobsub_demuxer_select="mpegps_demuxer"
3302 w64_demuxer_select="wav_demuxer"
3303 w64_muxer_select="wav_muxer"
3304 wav_demuxer_select="riffdec"
3305 wav_muxer_select="riffenc"
3306 webm_muxer_select="iso_media riffenc"
3307 webm_dash_manifest_demuxer_select="matroska_demuxer"
3308 wtv_demuxer_select="mpegts_demuxer riffdec"
3309 wtv_muxer_select="mpegts_muxer riffenc"
3310 xmv_demuxer_select="riffdec"
3311 xwma_demuxer_select="riffdec"
3312
3313 # indevs / outdevs
3314 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3315 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3316 alsa_indev_deps="alsa"
3317 alsa_outdev_deps="alsa"
3318 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3319 avfoundation_indev_suggest="coregraphics applicationservices"
3320 avfoundation_indev_extralibs="-framework Foundation"
3321 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3322 caca_outdev_deps="libcaca"
3323 decklink_deps_any="libdl LoadLibrary"
3324 decklink_indev_deps="decklink threads"
3325 decklink_indev_extralibs="-lstdc++"
3326 decklink_outdev_deps="decklink threads"
3327 decklink_outdev_suggest="libklvanc"
3328 decklink_outdev_extralibs="-lstdc++"
3329 dshow_indev_deps="IBaseFilter"
3330 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3331 fbdev_indev_deps="linux_fb_h"
3332 fbdev_outdev_deps="linux_fb_h"
3333 gdigrab_indev_deps="CreateDIBSection"
3334 gdigrab_indev_extralibs="-lgdi32"
3335 gdigrab_indev_select="bmp_decoder"
3336 iec61883_indev_deps="libiec61883"
3337 jack_indev_deps="libjack"
3338 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3339 kmsgrab_indev_deps="libdrm"
3340 lavfi_indev_deps="avfilter"
3341 libcdio_indev_deps="libcdio"
3342 libdc1394_indev_deps="libdc1394"
3343 openal_indev_deps="openal"
3344 opengl_outdev_deps="opengl"
3345 opengl_outdev_suggest="sdl2"
3346 oss_indev_deps_any="sys_soundcard_h"
3347 oss_outdev_deps_any="sys_soundcard_h"
3348 pulse_indev_deps="libpulse"
3349 pulse_outdev_deps="libpulse"
3350 sdl2_outdev_deps="sdl2"
3351 sndio_indev_deps="sndio"
3352 sndio_outdev_deps="sndio"
3353 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3354 v4l2_indev_suggest="libv4l2"
3355 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3356 v4l2_outdev_suggest="libv4l2"
3357 vfwcap_indev_deps="vfw32 vfwcap_defines"
3358 xcbgrab_indev_deps="libxcb"
3359 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3360 xv_outdev_deps="xlib"
3361
3362 # protocols
3363 async_protocol_deps="threads"
3364 bluray_protocol_deps="libbluray"
3365 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3366 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3367 ffrtmpcrypt_protocol_select="tcp_protocol"
3368 ffrtmphttp_protocol_conflict="librtmp_protocol"
3369 ffrtmphttp_protocol_select="http_protocol"
3370 ftp_protocol_select="tcp_protocol"
3371 gopher_protocol_select="network"
3372 http_protocol_select="tcp_protocol"
3373 http_protocol_suggest="zlib"
3374 httpproxy_protocol_select="tcp_protocol"
3375 httpproxy_protocol_suggest="zlib"
3376 https_protocol_select="tls_protocol"
3377 https_protocol_suggest="zlib"
3378 icecast_protocol_select="http_protocol"
3379 mmsh_protocol_select="http_protocol"
3380 mmst_protocol_select="network"
3381 rtmp_protocol_conflict="librtmp_protocol"
3382 rtmp_protocol_select="tcp_protocol"
3383 rtmp_protocol_suggest="zlib"
3384 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3385 rtmpe_protocol_suggest="zlib"
3386 rtmps_protocol_conflict="librtmp_protocol"
3387 rtmps_protocol_select="tls_protocol"
3388 rtmps_protocol_suggest="zlib"
3389 rtmpt_protocol_select="ffrtmphttp_protocol"
3390 rtmpt_protocol_suggest="zlib"
3391 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3392 rtmpte_protocol_suggest="zlib"
3393 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3394 rtmpts_protocol_suggest="zlib"
3395 rtp_protocol_select="udp_protocol"
3396 schannel_conflict="openssl gnutls libtls mbedtls"
3397 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3398 sctp_protocol_select="network"
3399 securetransport_conflict="openssl gnutls libtls mbedtls"
3400 srtp_protocol_select="rtp_protocol srtp"
3401 tcp_protocol_select="network"
3402 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3403 tls_protocol_select="tcp_protocol"
3404 udp_protocol_select="network"
3405 udplite_protocol_select="network"
3406 unix_protocol_deps="sys_un_h"
3407 unix_protocol_select="network"
3408
3409 # external library protocols
3410 librtmp_protocol_deps="librtmp"
3411 librtmpe_protocol_deps="librtmp"
3412 librtmps_protocol_deps="librtmp"
3413 librtmpt_protocol_deps="librtmp"
3414 librtmpte_protocol_deps="librtmp"
3415 libsmbclient_protocol_deps="libsmbclient gplv3"
3416 libsrt_protocol_deps="libsrt"
3417 libsrt_protocol_select="network"
3418 libssh_protocol_deps="libssh"
3419 libtls_conflict="openssl gnutls mbedtls"
3420 libzmq_protocol_deps="libzmq"
3421 libzmq_protocol_select="network"
3422
3423 # filters
3424 afftdn_filter_deps="avcodec"
3425 afftdn_filter_select="fft"
3426 afftfilt_filter_deps="avcodec"
3427 afftfilt_filter_select="fft"
3428 afir_filter_deps="avcodec"
3429 afir_filter_select="fft"
3430 amovie_filter_deps="avcodec avformat"
3431 aresample_filter_deps="swresample"
3432 asr_filter_deps="pocketsphinx"
3433 ass_filter_deps="libass"
3434 atempo_filter_deps="avcodec"
3435 atempo_filter_select="rdft"
3436 avgblur_opencl_filter_deps="opencl"
3437 azmq_filter_deps="libzmq"
3438 blackframe_filter_deps="gpl"
3439 bm3d_filter_deps="avcodec"
3440 bm3d_filter_select="dct"
3441 boxblur_filter_deps="gpl"
3442 boxblur_opencl_filter_deps="opencl gpl"
3443 bs2b_filter_deps="libbs2b"
3444 colorkey_opencl_filter_deps="opencl"
3445 colormatrix_filter_deps="gpl"
3446 convolution_opencl_filter_deps="opencl"
3447 convolve_filter_deps="avcodec"
3448 convolve_filter_select="fft"
3449 coreimage_filter_deps="coreimage appkit"
3450 coreimage_filter_extralibs="-framework OpenGL"
3451 coreimagesrc_filter_deps="coreimage appkit"
3452 coreimagesrc_filter_extralibs="-framework OpenGL"
3453 cover_rect_filter_deps="avcodec avformat gpl"
3454 cropdetect_filter_deps="gpl"
3455 deconvolve_filter_deps="avcodec"
3456 deconvolve_filter_select="fft"
3457 deinterlace_qsv_filter_deps="libmfx"
3458 deinterlace_vaapi_filter_deps="vaapi"
3459 delogo_filter_deps="gpl"
3460 denoise_vaapi_filter_deps="vaapi"
3461 derain_filter_select="dnn"
3462 deshake_filter_select="pixelutils"
3463 deshake_opencl_filter_deps="opencl"
3464 dilation_opencl_filter_deps="opencl"
3465 drawtext_filter_deps="libfreetype"
3466 drawtext_filter_suggest="libfontconfig libfribidi"
3467 elbg_filter_deps="avcodec"
3468 eq_filter_deps="gpl"
3469 erosion_opencl_filter_deps="opencl"
3470 fftfilt_filter_deps="avcodec"
3471 fftfilt_filter_select="rdft"
3472 fftdnoiz_filter_deps="avcodec"
3473 fftdnoiz_filter_select="fft"
3474 find_rect_filter_deps="avcodec avformat gpl"
3475 firequalizer_filter_deps="avcodec"
3476 firequalizer_filter_select="rdft"
3477 flite_filter_deps="libflite"
3478 framerate_filter_select="scene_sad"
3479 freezedetect_filter_select="scene_sad"
3480 frei0r_filter_deps="frei0r libdl"
3481 frei0r_src_filter_deps="frei0r libdl"
3482 fspp_filter_deps="gpl"
3483 geq_filter_deps="gpl"
3484 histeq_filter_deps="gpl"
3485 hqdn3d_filter_deps="gpl"
3486 interlace_filter_deps="gpl"
3487 kerndeint_filter_deps="gpl"
3488 ladspa_filter_deps="ladspa libdl"
3489 lensfun_filter_deps="liblensfun version3"
3490 lv2_filter_deps="lv2"
3491 mcdeint_filter_deps="avcodec gpl"
3492 movie_filter_deps="avcodec avformat"
3493 mpdecimate_filter_deps="gpl"
3494 mpdecimate_filter_select="pixelutils"
3495 minterpolate_filter_select="scene_sad"
3496 mptestsrc_filter_deps="gpl"
3497 negate_filter_deps="lut_filter"
3498 nlmeans_opencl_filter_deps="opencl"
3499 nnedi_filter_deps="gpl"
3500 ocr_filter_deps="libtesseract"
3501 ocv_filter_deps="libopencv"
3502 openclsrc_filter_deps="opencl"
3503 overlay_opencl_filter_deps="opencl"
3504 overlay_qsv_filter_deps="libmfx"
3505 overlay_qsv_filter_select="qsvvpp"
3506 owdenoise_filter_deps="gpl"
3507 pan_filter_deps="swresample"
3508 perspective_filter_deps="gpl"
3509 phase_filter_deps="gpl"
3510 pp7_filter_deps="gpl"
3511 pp_filter_deps="gpl postproc"
3512 prewitt_opencl_filter_deps="opencl"
3513 procamp_vaapi_filter_deps="vaapi"
3514 program_opencl_filter_deps="opencl"
3515 pullup_filter_deps="gpl"
3516 removelogo_filter_deps="avcodec avformat swscale"
3517 repeatfields_filter_deps="gpl"
3518 resample_filter_deps="avresample"
3519 roberts_opencl_filter_deps="opencl"
3520 rubberband_filter_deps="librubberband"
3521 sab_filter_deps="gpl swscale"
3522 scale2ref_filter_deps="swscale"
3523 scale_filter_deps="swscale"
3524 scale_qsv_filter_deps="libmfx"
3525 select_filter_select="scene_sad"
3526 sharpness_vaapi_filter_deps="vaapi"
3527 showcqt_filter_deps="avcodec avformat swscale"
3528 showcqt_filter_suggest="libfontconfig libfreetype"
3529 showcqt_filter_select="fft"
3530 showfreqs_filter_deps="avcodec"
3531 showfreqs_filter_select="fft"
3532 showspectrum_filter_deps="avcodec"
3533 showspectrum_filter_select="fft"
3534 showspectrumpic_filter_deps="avcodec"
3535 showspectrumpic_filter_select="fft"
3536 signature_filter_deps="gpl avcodec avformat"
3537 smartblur_filter_deps="gpl swscale"
3538 sobel_opencl_filter_deps="opencl"
3539 sofalizer_filter_deps="libmysofa avcodec"
3540 sofalizer_filter_select="fft"
3541 spectrumsynth_filter_deps="avcodec"
3542 spectrumsynth_filter_select="fft"
3543 spp_filter_deps="gpl avcodec"
3544 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3545 sr_filter_deps="avformat swscale"
3546 sr_filter_select="dnn"
3547 stereo3d_filter_deps="gpl"
3548 subtitles_filter_deps="avformat avcodec libass"
3549 super2xsai_filter_deps="gpl"
3550 pixfmts_super2xsai_test_deps="super2xsai_filter"
3551 tinterlace_filter_deps="gpl"
3552 tinterlace_merge_test_deps="tinterlace_filter"
3553 tinterlace_pad_test_deps="tinterlace_filter"
3554 tonemap_filter_deps="const_nan"
3555 tonemap_opencl_filter_deps="opencl const_nan"
3556 transpose_opencl_filter_deps="opencl"
3557 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3558 unsharp_opencl_filter_deps="opencl"
3559 uspp_filter_deps="gpl avcodec"
3560 vaguedenoiser_filter_deps="gpl"
3561 vidstabdetect_filter_deps="libvidstab"
3562 vidstabtransform_filter_deps="libvidstab"
3563 libvmaf_filter_deps="libvmaf pthreads"
3564 zmq_filter_deps="libzmq"
3565 zoompan_filter_deps="swscale"
3566 zscale_filter_deps="libzimg const_nan"
3567 scale_vaapi_filter_deps="vaapi"
3568 vpp_qsv_filter_deps="libmfx"
3569 vpp_qsv_filter_select="qsvvpp"
3570 yadif_cuda_filter_deps="ffnvcodec"
3571 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3572
3573 # examples
3574 avio_dir_cmd_deps="avformat avutil"
3575 avio_reading_deps="avformat avcodec avutil"
3576 decode_audio_example_deps="avcodec avutil"
3577 decode_video_example_deps="avcodec avutil"
3578 demuxing_decoding_example_deps="avcodec avformat avutil"
3579 encode_audio_example_deps="avcodec avutil"
3580 encode_video_example_deps="avcodec avutil"
3581 extract_mvs_example_deps="avcodec avformat avutil"
3582 filter_audio_example_deps="avfilter avutil"
3583 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3584 filtering_video_example_deps="avfilter avcodec avformat avutil"
3585 http_multiclient_example_deps="avformat avutil fork"
3586 hw_decode_example_deps="avcodec avformat avutil"
3587 metadata_example_deps="avformat avutil"
3588 muxing_example_deps="avcodec avformat avutil swscale"
3589 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3590 remuxing_example_deps="avcodec avformat avutil"
3591 resampling_audio_example_deps="avutil swresample"
3592 scaling_video_example_deps="avutil swscale"
3593 transcode_aac_example_deps="avcodec avformat swresample"
3594 transcoding_example_deps="avfilter avcodec avformat avutil"
3595 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3596 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3597
3598 # EXTRALIBS_LIST
3599 cpu_init_extralibs="pthreads_extralibs"
3600 cws2fws_extralibs="zlib_extralibs"
3601
3602 # libraries, in any order
3603 avcodec_deps="avutil"
3604 avcodec_suggest="libm"
3605 avcodec_select="null_bsf"
3606 avdevice_deps="avformat avcodec avutil"
3607 avdevice_suggest="libm"
3608 avfilter_deps="avutil"
3609 avfilter_suggest="libm"
3610 avformat_deps="avcodec avutil"
3611 avformat_suggest="libm network zlib"
3612 avresample_deps="avutil"
3613 avresample_suggest="libm"
3614 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3615 postproc_deps="avutil gpl"
3616 postproc_suggest="libm"
3617 swresample_deps="avutil"
3618 swresample_suggest="libm libsoxr"
3619 swscale_deps="avutil"
3620 swscale_suggest="libm"
3621
3622 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3623 avfilter_extralibs="pthreads_extralibs"
3624 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3625
3626 # programs
3627 ffmpeg_deps="avcodec avfilter avformat"
3628 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3629                hflip_filter null_filter
3630                transpose_filter trim_filter vflip_filter"
3631 ffmpeg_suggest="ole32 psapi shell32"
3632 ffplay_deps="avcodec avformat swscale swresample sdl2"
3633 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3634 ffplay_suggest="shell32"
3635 ffprobe_deps="avcodec avformat"
3636 ffprobe_suggest="shell32"
3637
3638 # documentation
3639 podpages_deps="perl"
3640 manpages_deps="perl pod2man"
3641 htmlpages_deps="perl"
3642 htmlpages_deps_any="makeinfo_html texi2html"
3643 txtpages_deps="perl makeinfo"
3644 doc_deps_any="manpages htmlpages podpages txtpages"
3645
3646 # default parameters
3647
3648 logfile="ffbuild/config.log"
3649
3650 # installation paths
3651 prefix_default="/usr/local"
3652 bindir_default='${prefix}/bin'
3653 datadir_default='${prefix}/share/ffmpeg'
3654 docdir_default='${prefix}/share/doc/ffmpeg'
3655 incdir_default='${prefix}/include'
3656 libdir_default='${prefix}/lib'
3657 mandir_default='${prefix}/share/man'
3658
3659 # toolchain
3660 ar_default="ar"
3661 cc_default="gcc"
3662 cxx_default="g++"
3663 host_cc_default="gcc"
3664 doxygen_default="doxygen"
3665 install="install"
3666 ln_s_default="ln -s -f"
3667 nm_default="nm -g"
3668 pkg_config_default=pkg-config
3669 ranlib_default="ranlib"
3670 strip_default="strip"
3671 version_script='--version-script'
3672 objformat="elf32"
3673 x86asmexe_default="nasm"
3674 windres_default="windres"
3675 striptype="direct"
3676
3677 # OS
3678 target_os_default=$(tolower $(uname -s))
3679 host_os=$target_os_default
3680
3681 # machine
3682 if test "$target_os_default" = aix; then
3683     arch_default=$(uname -p)
3684     strip_default="strip -X32_64"
3685     nm_default="nm -g -X32_64"
3686 else
3687     arch_default=$(uname -m)
3688 fi
3689 cpu="generic"
3690 intrinsics="none"
3691
3692 # configurable options
3693 enable $PROGRAM_LIST
3694 enable $DOCUMENT_LIST
3695 enable $EXAMPLE_LIST
3696 enable $(filter_out avresample $LIBRARY_LIST)
3697 enable stripping
3698
3699 enable asm
3700 enable debug
3701 enable doc
3702 enable faan faandct faanidct
3703 enable optimizations
3704 enable runtime_cpudetect
3705 enable safe_bitstream_reader
3706 enable static
3707 enable swscale_alpha
3708 enable valgrind_backtrace
3709
3710 sws_max_filter_size_default=256
3711 set_default sws_max_filter_size
3712
3713 # internal components are enabled by default
3714 enable $EXTRALIBS_LIST
3715
3716 # Avoid external, non-system, libraries getting enabled by dependency resolution
3717 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3718
3719 # build settings
3720 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3721 LIBPREF="lib"
3722 LIBSUF=".a"
3723 FULLNAME='$(NAME)$(BUILDSUF)'
3724 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3725 SLIBPREF="lib"
3726 SLIBSUF=".so"
3727 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3728 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3729 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3730 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3731 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3732 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3733 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3734
3735 asflags_filter=echo
3736 cflags_filter=echo
3737 ldflags_filter=echo
3738
3739 AS_C='-c'
3740 AS_O='-o $@'
3741 CC_C='-c'
3742 CC_E='-E -o $@'
3743 CC_O='-o $@'
3744 CXX_C='-c'
3745 CXX_O='-o $@'
3746 OBJCC_C='-c'
3747 OBJCC_E='-E -o $@'
3748 OBJCC_O='-o $@'
3749 X86ASM_O='-o $@'
3750 LD_O='-o $@'
3751 LD_LIB='-l%'
3752 LD_PATH='-L'
3753 HOSTCC_C='-c'
3754 HOSTCC_E='-E -o $@'
3755 HOSTCC_O='-o $@'
3756 HOSTLD_O='-o $@'
3757 NVCC_C='-c'
3758 NVCC_O='-o $@'
3759
3760 host_extralibs='-lm'
3761 host_cflags_filter=echo
3762 host_ldflags_filter=echo
3763
3764 target_path='$(CURDIR)'
3765
3766 # since the object filename is not given with the -MM flag, the compiler
3767 # is only able to print the basename, and we must add the path ourselves
3768 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3769 DEPFLAGS='-MM'
3770
3771 mkdir -p ffbuild
3772
3773 # find source path
3774 if test -f configure; then
3775     source_path=.
3776 elif test -f src/configure; then
3777     source_path=src
3778 else
3779     source_path=$(cd $(dirname "$0"); pwd)
3780     case "$source_path" in
3781         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3782     esac
3783     test -e "$source_path/config.h" &&
3784         die "Out of tree builds are impossible with config.h in source dir."
3785 fi
3786
3787 for v in "$@"; do
3788     r=${v#*=}
3789     l=${v%"$r"}
3790     r=$(sh_quote "$r")
3791     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3792 done
3793
3794 find_things_extern(){
3795     thing=$1
3796     pattern=$2
3797     file=$source_path/$3
3798     out=${4:-$thing}
3799     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3800 }
3801
3802 find_filters_extern(){
3803     file=$source_path/$1
3804     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3805 }
3806
3807 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3808 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3809 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3810 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3811 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3812 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3813 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3814 CODEC_LIST="
3815     $ENCODER_LIST
3816     $DECODER_LIST
3817 "
3818 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3819 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3820 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3821 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3822
3823 AVCODEC_COMPONENTS_LIST="
3824     $BSF_LIST
3825     $DECODER_LIST
3826     $ENCODER_LIST
3827     $HWACCEL_LIST
3828     $PARSER_LIST
3829 "
3830
3831 AVDEVICE_COMPONENTS_LIST="
3832     $INDEV_LIST
3833     $OUTDEV_LIST
3834 "
3835
3836 AVFILTER_COMPONENTS_LIST="
3837     $FILTER_LIST
3838 "
3839
3840 AVFORMAT_COMPONENTS_LIST="
3841     $DEMUXER_LIST
3842     $MUXER_LIST
3843     $PROTOCOL_LIST
3844 "
3845
3846 ALL_COMPONENTS="
3847     $AVCODEC_COMPONENTS_LIST
3848     $AVDEVICE_COMPONENTS_LIST
3849     $AVFILTER_COMPONENTS_LIST
3850     $AVFORMAT_COMPONENTS_LIST
3851 "
3852
3853 for n in $COMPONENT_LIST; do
3854     v=$(toupper ${n%s})_LIST
3855     eval enable \$$v
3856     eval ${n}_if_any="\$$v"
3857 done
3858
3859 enable $ARCH_EXT_LIST
3860
3861 die_unknown(){
3862     echo "Unknown option \"$1\"."
3863     echo "See $0 --help for available options."
3864     exit 1
3865 }
3866
3867 print_in_columns() {
3868     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3869     {
3870         num_cols = width > col_width ? int(width / col_width) : 1;
3871         num_rows = int((NF + num_cols-1) / num_cols);
3872         y = x = 1;
3873         for (y = 1; y <= num_rows; y++) {
3874             i = y;
3875             for (x = 1; x <= num_cols; x++) {
3876                 if (i <= NF) {
3877                   line = sprintf("%s%-" col_width "s", line, $i);
3878                 }
3879                 i = i + num_rows;
3880             }
3881             print line; line = "";
3882         }
3883     }' | sed 's/ *$//'
3884 }
3885
3886 show_list() {
3887     suffix=_$1
3888     shift
3889     echo $* | sed s/$suffix//g | print_in_columns
3890     exit 0
3891 }
3892
3893 rand_list(){
3894     IFS=', '
3895     set -- $*
3896     unset IFS
3897     for thing; do
3898         comp=${thing%:*}
3899         prob=${thing#$comp}
3900         prob=${prob#:}
3901         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3902         echo "prob ${prob:-0.5}"
3903         printf '%s\n' $comp
3904     done
3905 }
3906
3907 do_random(){
3908     action=$1
3909     shift
3910     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3911     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3912 }
3913
3914 for opt do
3915     optval="${opt#*=}"
3916     case "$opt" in
3917         --extra-ldflags=*)
3918             add_ldflags $optval
3919         ;;
3920         --extra-ldexeflags=*)
3921             add_ldexeflags $optval
3922         ;;
3923         --extra-ldsoflags=*)
3924             add_ldsoflags $optval
3925         ;;
3926         --extra-ldlibflags=*)
3927             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3928                  "removed in the future. Use --extra-ldsoflags instead."
3929             add_ldsoflags $optval
3930         ;;
3931         --extra-libs=*)
3932             add_extralibs $optval
3933         ;;
3934         --disable-devices)
3935             disable $INDEV_LIST $OUTDEV_LIST
3936         ;;
3937         --enable-debug=*)
3938             debuglevel="$optval"
3939         ;;
3940         --disable-programs)
3941             disable $PROGRAM_LIST
3942         ;;
3943         --disable-everything)
3944             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3945         ;;
3946         --disable-all)
3947             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3948             disable $LIBRARY_LIST $PROGRAM_LIST doc
3949             enable avutil
3950         ;;
3951         --enable-random|--disable-random)
3952             action=${opt%%-random}
3953             do_random ${action#--} $COMPONENT_LIST
3954         ;;
3955         --enable-random=*|--disable-random=*)
3956             action=${opt%%-random=*}
3957             do_random ${action#--} $optval
3958         ;;
3959         --enable-sdl)
3960             enable sdl2
3961         ;;
3962         --enable-*=*|--disable-*=*)
3963             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3964             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3965             eval list=\$$(toupper $thing)_LIST
3966             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3967             list=$(filter "$name" $list)
3968             [ "$list" = "" ] && warn "Option $opt did not match anything"
3969             test $action = enable && warn_if_gets_disabled $list
3970             $action $list
3971         ;;
3972         --enable-yasm|--disable-yasm)
3973             warn "The ${opt} option is only provided for compatibility and will be\n"\
3974                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3975             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3976         ;;
3977         --yasmexe=*)
3978             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3979                  "removed in the future. Use --x86asmexe instead."
3980             x86asmexe="$optval"
3981         ;;
3982         --enable-?*|--disable-?*)
3983             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3984             if is_in $option $COMPONENT_LIST; then
3985                 test $action = disable && action=unset
3986                 eval $action \$$(toupper ${option%s})_LIST
3987             elif is_in $option $CMDLINE_SELECT; then
3988                 $action $option
3989             else
3990                 die_unknown $opt
3991             fi
3992         ;;
3993         --list-*)
3994             NAME="${opt#--list-}"
3995             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3996             NAME=${NAME%s}
3997             eval show_list $NAME \$$(toupper $NAME)_LIST
3998         ;;
3999         --help|-h) show_help
4000         ;;
4001         --quiet|-q) quiet=yes
4002         ;;
4003         --fatal-warnings) enable fatal_warnings
4004         ;;
4005         --libfuzzer=*)
4006             libfuzzer_path="$optval"
4007         ;;
4008         *)
4009             optname="${opt%%=*}"
4010             optname="${optname#--}"
4011             optname=$(echo "$optname" | sed 's/-/_/g')
4012             if is_in $optname $CMDLINE_SET; then
4013                 eval $optname='$optval'
4014             elif is_in $optname $CMDLINE_APPEND; then
4015                 append $optname "$optval"
4016             else
4017                 die_unknown $opt
4018             fi
4019         ;;
4020     esac
4021 done
4022
4023 for e in $env; do
4024     eval "export $e"
4025 done
4026
4027 if disabled autodetect; then
4028
4029     # Unless iconv is explicitely disabled by the user, we still want to probe
4030     # for the iconv from the libc.
4031     disabled iconv || enable libc_iconv
4032
4033     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4034     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4035 fi
4036 # Mark specifically enabled, but normally autodetected libraries as requested.
4037 for lib in $AUTODETECT_LIBS; do
4038     enabled $lib && request $lib
4039 done
4040 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4041 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4042 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4043
4044 disabled logging && logfile=/dev/null
4045
4046 # command line configuration sanity checks
4047
4048 # we need to build at least one lib type
4049 if ! enabled_any static shared; then
4050     cat <<EOF
4051 At least one library type must be built.
4052 Specify --enable-static to build the static libraries or --enable-shared to
4053 build the shared libraries as well. To only build the shared libraries specify
4054 --disable-static in addition to --enable-shared.
4055 EOF
4056     exit 1
4057 fi
4058
4059 die_license_disabled() {
4060     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4061 }
4062
4063 die_license_disabled_gpl() {
4064     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4065 }
4066
4067 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4068 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4069
4070 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4071 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4072
4073 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4074
4075 if enabled nonfree; then
4076     license="nonfree and unredistributable"
4077 elif enabled gplv3; then
4078     license="GPL version 3 or later"
4079 elif enabled lgplv3; then
4080     license="LGPL version 3 or later"
4081 elif enabled gpl; then
4082     license="GPL version 2 or later"
4083 else
4084     license="LGPL version 2.1 or later"
4085 fi
4086
4087 enabled_all gnutls openssl &&
4088     die "GnuTLS and OpenSSL must not be enabled at the same time."
4089
4090 enabled_all gnutls mbedtls &&
4091     die "GnuTLS and mbedTLS must not be enabled at the same time."
4092
4093 enabled_all openssl mbedtls &&
4094     die "OpenSSL and mbedTLS must not be enabled at the same time."
4095
4096 # Disable all the library-specific components if the library itself
4097 # is disabled, see AVCODEC_LIST and following _LIST variables.
4098
4099 disable_components(){
4100     disabled ${1} && disable $(
4101         eval components="\$$(toupper ${1})_COMPONENTS"
4102         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4103     )
4104 }
4105
4106 map 'disable_components $v' $LIBRARY_LIST
4107
4108 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4109 set >> $logfile
4110
4111 test -n "$valgrind" && toolchain="valgrind-memcheck"
4112
4113 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4114     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4115     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4116 }
4117
4118 case "$toolchain" in
4119     *-asan)
4120         cc_default="${toolchain%-asan}"
4121         add_cflags  -fsanitize=address
4122         add_ldflags -fsanitize=address
4123     ;;
4124     *-msan)
4125         cc_default="${toolchain%-msan}"
4126         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4127         add_ldflags -fsanitize=memory
4128     ;;
4129     *-tsan)
4130         cc_default="${toolchain%-tsan}"
4131         add_cflags  -fsanitize=thread
4132         add_ldflags -fsanitize=thread
4133         case "$toolchain" in
4134             gcc-tsan)
4135                 add_cflags  -fPIC
4136                 add_ldflags -fPIC
4137                 ;;
4138         esac
4139     ;;
4140     *-usan)
4141         cc_default="${toolchain%-usan}"
4142         add_cflags  -fsanitize=undefined
4143         add_ldflags -fsanitize=undefined
4144     ;;
4145     valgrind-*)
4146         target_exec_default="valgrind"
4147         case "$toolchain" in
4148             valgrind-massif)
4149                 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"
4150                 ;;
4151             valgrind-memcheck)
4152                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4153                 ;;
4154         esac
4155     ;;
4156     msvc)
4157         # Check whether the current MSVC version needs the C99 converter.
4158         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4159         # support enough of C99 to build ffmpeg. Default to the new
4160         # behaviour if the regexp was unable to match anything, since this
4161         # successfully parses the version number of existing supported
4162         # versions that require the converter (MSVC 2010 and 2012).
4163         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4164         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4165             cc_default="cl.exe"
4166             cxx_default="cl.exe"
4167         else
4168             die "Unsupported MSVC version (2013 or newer required)"
4169         fi
4170         ld_default="$source_path/compat/windows/mslink"
4171         nm_default="dumpbin.exe -symbols"
4172         ar_default="lib.exe"
4173         case "$arch" in
4174         aarch64|arm64)
4175             as_default="armasm64.exe"
4176             ;;
4177         arm*)
4178             as_default="armasm.exe"
4179             ;;
4180         esac
4181         target_os_default="win32"
4182         # Use a relative path for TMPDIR. This makes sure all the
4183         # ffconf temp files are written with a relative path, avoiding
4184         # issues with msys/win32 path conversion for MSVC parameters
4185         # such as -Fo<file> or -out:<file>.
4186         TMPDIR=.
4187     ;;
4188     icl)
4189         cc_default="icl"
4190         ld_default="xilink"
4191         nm_default="dumpbin -symbols"
4192         ar_default="xilib"
4193         target_os_default="win32"
4194         TMPDIR=.
4195     ;;
4196     gcov)
4197         add_cflags  -fprofile-arcs -ftest-coverage
4198         add_ldflags -fprofile-arcs -ftest-coverage
4199     ;;
4200     llvm-cov)
4201         add_cflags -fprofile-arcs -ftest-coverage
4202         add_ldflags --coverage
4203     ;;
4204     hardened)
4205         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4206         add_cflags   -fno-strict-overflow -fstack-protector-all
4207         add_ldflags  -Wl,-z,relro -Wl,-z,now
4208         add_cflags   -fPIE
4209         add_ldexeflags -fPIE -pie
4210     ;;
4211     ?*)
4212         die "Unknown toolchain $toolchain"
4213     ;;
4214 esac
4215
4216 if test -n "$cross_prefix"; then
4217     test -n "$arch" && test -n "$target_os" ||
4218         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4219     enable cross_compile
4220 fi
4221
4222 set_default target_os
4223 if test "$target_os" = android; then
4224     cc_default="clang"
4225 fi
4226
4227 ar_default="${cross_prefix}${ar_default}"
4228 cc_default="${cross_prefix}${cc_default}"
4229 cxx_default="${cross_prefix}${cxx_default}"
4230 nm_default="${cross_prefix}${nm_default}"
4231 pkg_config_default="${cross_prefix}${pkg_config_default}"
4232 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4233     ranlib_default="${cross_prefix}${ranlib_default} -D"
4234 else
4235     ranlib_default="${cross_prefix}${ranlib_default}"
4236 fi
4237 strip_default="${cross_prefix}${strip_default}"
4238 windres_default="${cross_prefix}${windres_default}"
4239
4240 sysinclude_default="${sysroot}/usr/include"
4241
4242 if enabled cuda_sdk; then
4243     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4244     enable cuda_nvcc
4245 fi
4246
4247 if enabled cuda_nvcc; then
4248     nvcc_default="nvcc"
4249     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4250 else
4251     nvcc_default="clang"
4252     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4253     NVCC_C=""
4254 fi
4255
4256 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4257     target_exec x86asmexe nvcc
4258 enabled cross_compile || host_cc_default=$cc
4259 set_default host_cc
4260
4261 pkg_config_fail_message=""
4262 if ! $pkg_config --version >/dev/null 2>&1; then
4263     warn "$pkg_config not found, library detection may fail."
4264     pkg_config=false
4265 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4266     pkg_config_fail_message="
4267 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4268 fi
4269
4270 if test $doxygen != $doxygen_default && \
4271   ! $doxygen --version >/dev/null 2>&1; then
4272     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4273 fi
4274
4275 exesuf() {
4276     case $1 in
4277         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4278     esac
4279 }
4280
4281 EXESUF=$(exesuf $target_os)
4282 HOSTEXESUF=$(exesuf $host_os)
4283
4284 # set temporary file name
4285 : ${TMPDIR:=$TEMPDIR}
4286 : ${TMPDIR:=$TMP}
4287 : ${TMPDIR:=/tmp}
4288
4289 if [ -n "$tempprefix" ] ; then
4290     mktemp(){
4291         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4292         echo "$tmpname"
4293         mkdir "$tmpname"
4294     }
4295 elif ! test_cmd mktemp -u XXXXXX; then
4296     # simple replacement for missing mktemp
4297     # NOT SAFE FOR GENERAL USE
4298     mktemp(){
4299         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4300         echo "$tmpname"
4301         mkdir "$tmpname"
4302     }
4303 fi
4304
4305 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4306     die "Unable to create temporary directory in $TMPDIR."
4307
4308 tmpfile(){
4309     tmp="${FFTMPDIR}/test"$2
4310     (set -C; exec > $tmp) 2> /dev/null ||
4311         die "Unable to create temporary file in $FFTMPDIR."
4312     eval $1=$tmp
4313 }
4314
4315 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4316 trap 'exit 2' INT
4317
4318 tmpfile TMPASM .asm
4319 tmpfile TMPC   .c
4320 tmpfile TMPCPP .cpp
4321 tmpfile TMPE   $EXESUF
4322 tmpfile TMPH   .h
4323 tmpfile TMPM   .m
4324 tmpfile TMPCU  .cu
4325 tmpfile TMPO   .o
4326 tmpfile TMPS   .S
4327 tmpfile TMPSH  .sh
4328 tmpfile TMPV   .ver
4329
4330 unset -f mktemp
4331
4332 chmod +x $TMPE
4333
4334 # make sure we can execute files in $TMPDIR
4335 cat > $TMPSH 2>> $logfile <<EOF
4336 #! /bin/sh
4337 EOF
4338 chmod +x $TMPSH >> $logfile 2>&1
4339 if ! $TMPSH >> $logfile 2>&1; then
4340     cat <<EOF
4341 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4342 variable to another directory and make sure that it is not mounted noexec.
4343 EOF
4344     die "Sanity test failed."
4345 fi
4346
4347 armasm_flags(){
4348     for flag; do
4349         case $flag in
4350             # Filter out MSVC cl.exe options from cflags that shouldn't
4351             # be passed to gas-preprocessor
4352             -M[TD]*)                                            ;;
4353             *)                  echo $flag                      ;;
4354         esac
4355    done
4356 }
4357
4358 cparser_flags(){
4359     for flag; do
4360         case $flag in
4361             -Wno-switch)             echo -Wno-switch-enum ;;
4362             -Wno-format-zero-length) ;;
4363             -Wdisabled-optimization) ;;
4364             -Wno-pointer-sign)       echo -Wno-other ;;
4365             *)                       echo $flag ;;
4366         esac
4367     done
4368 }
4369
4370 msvc_common_flags(){
4371     for flag; do
4372         case $flag in
4373             # In addition to specifying certain flags under the compiler
4374             # specific filters, they must be specified here as well or else the
4375             # generic catch all at the bottom will print the original flag.
4376             -Wall)                ;;
4377             -Wextra)              ;;
4378             -std=c99)             ;;
4379             # Common flags
4380             -fomit-frame-pointer) ;;
4381             -g)                   echo -Z7 ;;
4382             -fno-math-errno)      ;;
4383             -fno-common)          ;;
4384             -fno-signed-zeros)    ;;
4385             -fPIC)                ;;
4386             -mthumb)              ;;
4387             -march=*)             ;;
4388             -lz)                  echo zlib.lib ;;
4389             -lx264)               echo libx264.lib ;;
4390             -lstdc++)             ;;
4391             -l*)                  echo ${flag#-l}.lib ;;
4392             -LARGEADDRESSAWARE)   echo $flag ;;
4393             -L*)                  echo -libpath:${flag#-L} ;;
4394             *)                    echo $flag ;;
4395         esac
4396     done
4397 }
4398
4399 msvc_flags(){
4400     msvc_common_flags "$@"
4401     for flag; do
4402         case $flag in
4403             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4404                                        -wd4554 ;;
4405             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4406                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4407                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4408                                        -wd4307 \
4409                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4410         esac
4411     done
4412 }
4413
4414 icl_flags(){
4415     msvc_common_flags "$@"
4416     for flag; do
4417         case $flag in
4418             # Despite what Intel's documentation says -Wall, which is supported
4419             # on Windows, does enable remarks so disable them here.
4420             -Wall)                echo $flag -Qdiag-disable:remark ;;
4421             -std=c99)             echo -Qstd=c99 ;;
4422             -flto)                echo -ipo ;;
4423         esac
4424     done
4425 }
4426
4427 icc_flags(){
4428     for flag; do
4429         case $flag in
4430             -flto)                echo -ipo ;;
4431             *)                    echo $flag ;;
4432         esac
4433     done
4434 }
4435
4436 suncc_flags(){
4437     for flag; do
4438         case $flag in
4439             -march=*|-mcpu=*)
4440                 case "${flag#*=}" in
4441                     native)                   echo -xtarget=native       ;;
4442                     v9|niagara)               echo -xarch=sparc          ;;
4443                     ultrasparc)               echo -xarch=sparcvis       ;;
4444                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4445                     i586|pentium)             echo -xchip=pentium        ;;
4446                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4447                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4448                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4449                     pentium4*)          echo -xtarget=pentium4           ;;
4450                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4451                     *-sse3)             echo -xarch=sse3                 ;;
4452                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4453                     bonnell)                   echo -xarch=ssse3         ;;
4454                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4455                     westmere)                  echo -xtarget=westmere    ;;
4456                     silvermont)                echo -xarch=sse4_2        ;;
4457                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4458                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4459                                                echo -xarch=avx           ;;
4460                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4461                     btver1)                    echo -xarch=amdsse4a      ;;
4462                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4463                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4464                     k8|opteron|athlon64|athlon-fx)
4465                                                echo -xarch=sse2a         ;;
4466                     athlon*)                   echo -xarch=pentium_proa  ;;
4467                 esac
4468                 ;;
4469             -std=c99)             echo -xc99              ;;
4470             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4471             -fPIC)                echo -KPIC -xcode=pic32 ;;
4472             -W*,*)                echo $flag              ;;
4473             -f*-*|-W*|-mimpure-text)                      ;;
4474             -shared)              echo -G                 ;;
4475             *)                    echo $flag              ;;
4476         esac
4477     done
4478 }
4479
4480 probe_cc(){
4481     pfx=$1
4482     _cc=$2
4483     first=$3
4484
4485     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4486     unset _ld_o _ldflags _ld_lib _ld_path
4487     unset _depflags _DEPCMD _DEPFLAGS
4488     _flags_filter=echo
4489
4490     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4491         true # no-op to avoid reading stdin in following checks
4492     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4493         _type=llvm_gcc
4494         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4495         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4496         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4497         _cflags_speed='-O3'
4498         _cflags_size='-Os'
4499     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4500         _type=gcc
4501         gcc_version=$($_cc --version | head -n1)
4502         gcc_basever=$($_cc -dumpversion)
4503         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4504         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4505         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4506         case $gcc_basever in
4507             2) ;;
4508             2.*) ;;
4509             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4510         esac
4511         if [ "$first" = true ]; then
4512             case $gcc_basever in
4513                 4.2*)
4514                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4515             esac
4516         fi
4517         _cflags_speed='-O3'
4518         _cflags_size='-Os'
4519     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4520         _type=icc
4521         _ident=$($_cc --version | head -n1)
4522         _depflags='-MMD'
4523         _cflags_speed='-O3'
4524         _cflags_size='-Os'
4525         _cflags_noopt='-O1'
4526         _flags_filter=icc_flags
4527     elif $_cc -v 2>&1 | grep -q xlc; then
4528         _type=xlc
4529         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4530         _cflags_speed='-O5'
4531         _cflags_size='-O5 -qcompact'
4532     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4533         test -d "$sysroot" || die "No valid sysroot specified."
4534         _type=armcc
4535         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4536         armcc_conf="$PWD/armcc.conf"
4537         $_cc --arm_linux_configure                 \
4538              --arm_linux_config_file="$armcc_conf" \
4539              --configure_sysroot="$sysroot"        \
4540              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4541              die "Error creating armcc configuration file."
4542         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4543         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4544         as_default="${cross_prefix}gcc"
4545         _depflags='-MMD'
4546         _cflags_speed='-O3'
4547         _cflags_size='-Os'
4548     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4549         _type=clang
4550         _ident=$($_cc --version 2>/dev/null | head -n1)
4551         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4552         _cflags_speed='-O3'
4553         _cflags_size='-Oz'
4554     elif $_cc -V 2>&1 | grep -q Sun; then
4555         _type=suncc
4556         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4557         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4558         _DEPFLAGS='-xM1 -xc99'
4559         _ldflags='-std=c99'
4560         _cflags_speed='-O5'
4561         _cflags_size='-O5 -xspace'
4562         _flags_filter=suncc_flags
4563     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4564         _type=pathscale
4565         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4566         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4567         _cflags_speed='-O2'
4568         _cflags_size='-Os'
4569         _flags_filter='filter_out -Wdisabled-optimization'
4570     elif $_cc -v 2>&1 | grep -q Open64; then
4571         _type=open64
4572         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4573         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4574         _cflags_speed='-O2'
4575         _cflags_size='-Os'
4576         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4577     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4578         _type=armasm
4579         _ident=$($_cc | head -n1)
4580         # 4509: "This form of conditional instruction is deprecated"
4581         _flags="-nologo -ignore 4509"
4582         _flags_filter=armasm_flags
4583     elif $_cc 2>&1 | grep -q Intel; then
4584         _type=icl
4585         _ident=$($_cc 2>&1 | head -n1)
4586         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4587         # Not only is O3 broken on 13.x+ but it is slower on all previous
4588         # versions (tested) as well.
4589         _cflags_speed="-O2"
4590         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4591         if $_cc 2>&1 | grep -q Linker; then
4592             _ld_o='-out:$@'
4593         else
4594             _ld_o='-Fe$@'
4595         fi
4596         _cc_o='-Fo$@'
4597         _cc_e='-P'
4598         _flags_filter=icl_flags
4599         _ld_lib='lib%.a'
4600         _ld_path='-libpath:'
4601         # -Qdiag-error to make icl error when seeing certain unknown arguments
4602         _flags='-nologo -Qdiag-error:4044,10157'
4603         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4604         # with MSVC which enables it by default.
4605         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4606         disable stripping
4607     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4608         # lld can emulate multiple different linkers; in ms link.exe mode,
4609         # the -? parameter gives the help output which contains an identifyable
4610         # string, while it gives an error in other modes.
4611         _type=lld-link
4612         # The link.exe mode doesn't have a switch for getting the version,
4613         # but we can force it back to gnu mode and get the version from there.
4614         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4615         _ld_o='-out:$@'
4616         _flags_filter=msvc_flags
4617         _ld_lib='lib%.a'
4618         _ld_path='-libpath:'
4619     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4620         _type=msvc
4621         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4622         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4623         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4624         _cflags_speed="-O2"
4625         _cflags_size="-O1"
4626         _cflags_noopt="-O1"
4627         if $_cc -nologo- 2>&1 | grep -q Linker; then
4628             _ld_o='-out:$@'
4629         else
4630             _ld_o='-Fe$@'
4631         fi
4632         _cc_o='-Fo$@'
4633         _cc_e='-P -Fi$@'
4634         _flags_filter=msvc_flags
4635         _ld_lib='lib%.a'
4636         _ld_path='-libpath:'
4637         _flags='-nologo'
4638         disable stripping
4639     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4640         _type=cparser
4641         _ident=$($_cc --version | head -n1)
4642         _depflags='-MMD'
4643         _cflags_speed='-O4'
4644         _cflags_size='-O2'
4645         _flags_filter=cparser_flags
4646     fi
4647
4648     eval ${pfx}_type=\$_type
4649     eval ${pfx}_ident=\$_ident
4650 }
4651
4652 set_ccvars(){
4653     eval ${1}_C=\${_cc_c-\${${1}_C}}
4654     eval ${1}_E=\${_cc_e-\${${1}_E}}
4655     eval ${1}_O=\${_cc_o-\${${1}_O}}
4656
4657     if [ -n "$_depflags" ]; then
4658         eval ${1}_DEPFLAGS=\$_depflags
4659     else
4660         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4661         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4662         eval DEP${1}FLAGS=\$_flags
4663     fi
4664 }
4665
4666 probe_cc cc "$cc" "true"
4667 cflags_filter=$_flags_filter
4668 cflags_speed=$_cflags_speed
4669 cflags_size=$_cflags_size
4670 cflags_noopt=$_cflags_noopt
4671 add_cflags $_flags $_cflags
4672 cc_ldflags=$_ldflags
4673 set_ccvars CC
4674 set_ccvars CXX
4675
4676 probe_cc hostcc "$host_cc"
4677 host_cflags_filter=$_flags_filter
4678 host_cflags_speed=$_cflags_speed
4679 add_host_cflags  $_flags $_cflags
4680 set_ccvars HOSTCC
4681
4682 test -n "$cc_type" && enable $cc_type ||
4683     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4684
4685 : ${as_default:=$cc}
4686 : ${objcc_default:=$cc}
4687 : ${dep_cc_default:=$cc}
4688 : ${ld_default:=$cc}
4689 : ${host_ld_default:=$host_cc}
4690 set_default ar as objcc dep_cc ld ln_s host_ld windres
4691
4692 probe_cc as "$as"
4693 asflags_filter=$_flags_filter
4694 add_asflags $_flags $_cflags
4695 set_ccvars AS
4696
4697 probe_cc objcc "$objcc"
4698 objcflags_filter=$_flags_filter
4699 add_objcflags $_flags $_cflags
4700 set_ccvars OBJC
4701
4702 probe_cc ld "$ld"
4703 ldflags_filter=$_flags_filter
4704 add_ldflags $_flags $_ldflags
4705 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4706 LD_O=${_ld_o-$LD_O}
4707 LD_LIB=${_ld_lib-$LD_LIB}
4708 LD_PATH=${_ld_path-$LD_PATH}
4709
4710 probe_cc hostld "$host_ld"
4711 host_ldflags_filter=$_flags_filter
4712 add_host_ldflags $_flags $_ldflags
4713 HOSTLD_O=${_ld_o-$HOSTLD_O}
4714
4715 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4716     probe_cc depcc "$dep_cc"
4717     CCDEP=${_DEPCMD:-$DEPCMD}
4718     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4719     DEPCCFLAGS=$_flags
4720 fi
4721
4722 if $ar 2>&1 | grep -q Microsoft; then
4723     arflags="-nologo"
4724     ar_o='-out:$@'
4725 elif $ar 2>&1 | grep -q "\[D\] "; then
4726     arflags="rcD"
4727     ar_o='$@'
4728 else
4729     arflags="rc"
4730     ar_o='$@'
4731 fi
4732
4733 add_cflags $extra_cflags
4734 add_cxxflags $extra_cxxflags
4735 add_objcflags $extra_objcflags
4736 add_asflags $extra_cflags
4737
4738 if test -n "$sysroot"; then
4739     case "$cc_type" in
4740         gcc|llvm_gcc|clang)
4741             add_cppflags --sysroot="$sysroot"
4742             add_ldflags --sysroot="$sysroot"
4743         ;;
4744     esac
4745 fi
4746
4747 if test "$cpu" = host; then
4748     enabled cross_compile &&
4749         die "--cpu=host makes no sense when cross-compiling."
4750
4751     case "$cc_type" in
4752         gcc|llvm_gcc)
4753             check_native(){
4754                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4755                 sed -n "/cc1.*$1=/{
4756                             s/.*$1=\\([^ ]*\\).*/\\1/
4757                             p
4758                             q
4759                         }" $TMPE
4760             }
4761             cpu=$(check_native -march || check_native -mcpu)
4762         ;;
4763         clang)
4764             check_native(){
4765                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4766                 sed -n "/cc1.*-target-cpu /{
4767                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4768                             p
4769                             q
4770                         }" $TMPE
4771             }
4772             cpu=$(check_native -march)
4773         ;;
4774     esac
4775
4776     test "${cpu:-host}" = host &&
4777         die "--cpu=host not supported with compiler $cc"
4778 fi
4779
4780 # Deal with common $arch aliases
4781 case "$arch" in
4782     aarch64|arm64)
4783         arch="aarch64"
4784     ;;
4785     arm*|iPad*|iPhone*)
4786         arch="arm"
4787     ;;
4788     mips*|IP*)
4789         case "$arch" in
4790         *el)
4791             add_cppflags -EL
4792             add_ldflags -EL
4793         ;;
4794         *eb)
4795             add_cppflags -EB
4796             add_ldflags -EB
4797         ;;
4798         esac
4799         arch="mips"
4800     ;;
4801     parisc*|hppa*)
4802         arch="parisc"
4803     ;;
4804     "Power Macintosh"|ppc*|powerpc*)
4805         arch="ppc"
4806     ;;
4807     s390|s390x)
4808         arch="s390"
4809     ;;
4810     sh4|sh)
4811         arch="sh4"
4812     ;;
4813     sun4*|sparc*)
4814         arch="sparc"
4815     ;;
4816     tilegx|tile-gx)
4817         arch="tilegx"
4818     ;;
4819     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4820         arch="x86"
4821     ;;
4822 esac
4823
4824 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4825 enable $arch
4826
4827 # Add processor-specific flags
4828 if enabled aarch64; then
4829
4830     case $cpu in
4831         armv*)
4832             cpuflags="-march=$cpu"
4833         ;;
4834         *)
4835             cpuflags="-mcpu=$cpu"
4836         ;;
4837     esac
4838
4839 elif enabled alpha; then
4840
4841     cpuflags="-mcpu=$cpu"
4842
4843 elif enabled arm; then
4844
4845     check_arm_arch() {
4846         test_cpp_condition stddef.h \
4847             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4848             $cpuflags
4849     }
4850
4851     probe_arm_arch() {
4852         if   check_arm_arch 4;        then echo armv4
4853         elif check_arm_arch 4T;       then echo armv4t
4854         elif check_arm_arch 5;        then echo armv5
4855         elif check_arm_arch 5E;       then echo armv5e
4856         elif check_arm_arch 5T;       then echo armv5t
4857         elif check_arm_arch 5TE;      then echo armv5te
4858         elif check_arm_arch 5TEJ;     then echo armv5te
4859         elif check_arm_arch 6;        then echo armv6
4860         elif check_arm_arch 6J;       then echo armv6j
4861         elif check_arm_arch 6K;       then echo armv6k
4862         elif check_arm_arch 6Z;       then echo armv6z
4863         elif check_arm_arch 6KZ;      then echo armv6zk
4864         elif check_arm_arch 6ZK;      then echo armv6zk
4865         elif check_arm_arch 6T2;      then echo armv6t2
4866         elif check_arm_arch 7;        then echo armv7
4867         elif check_arm_arch 7A  7_A;  then echo armv7-a
4868         elif check_arm_arch 7S;       then echo armv7-a
4869         elif check_arm_arch 7R  7_R;  then echo armv7-r
4870         elif check_arm_arch 7M  7_M;  then echo armv7-m
4871         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4872         elif check_arm_arch 8A  8_A;  then echo armv8-a
4873         fi
4874     }
4875
4876     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4877
4878     case $cpu in
4879         armv*)
4880             cpuflags="-march=$cpu"
4881             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4882         ;;
4883         *)
4884             cpuflags="-mcpu=$cpu"
4885             case $cpu in
4886                 cortex-a*)                               subarch=armv7a  ;;
4887                 cortex-r*)                               subarch=armv7r  ;;
4888                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4889                 arm11*)                                  subarch=armv6   ;;
4890                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4891                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4892                 *)                             subarch=$(probe_arm_arch) ;;
4893             esac
4894         ;;
4895     esac
4896
4897     case "$subarch" in
4898         armv5t*)    enable fast_clz                ;;
4899         armv[6-8]*)
4900             enable fast_clz
4901             disabled fast_unaligned || enable fast_unaligned
4902             ;;
4903     esac
4904
4905 elif enabled avr32; then
4906
4907     case $cpu in
4908         ap7[02]0[0-2])
4909             subarch="avr32_ap"
4910             cpuflags="-mpart=$cpu"
4911         ;;
4912         ap)
4913             subarch="avr32_ap"
4914             cpuflags="-march=$cpu"
4915         ;;
4916         uc3[ab]*)
4917             subarch="avr32_uc"
4918             cpuflags="-mcpu=$cpu"
4919         ;;
4920         uc)
4921             subarch="avr32_uc"
4922             cpuflags="-march=$cpu"
4923         ;;
4924     esac
4925
4926 elif enabled bfin; then
4927
4928     cpuflags="-mcpu=$cpu"
4929
4930 elif enabled mips; then
4931
4932     cpuflags="-march=$cpu"
4933
4934     if [ "$cpu" != "generic" ]; then
4935         disable mips32r2
4936         disable mips32r5
4937         disable mips64r2
4938         disable mips32r6
4939         disable mips64r6
4940         disable loongson2
4941         disable loongson3
4942
4943         case $cpu in
4944             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4945                 enable mips32r2
4946                 disable msa
4947             ;;
4948             p5600|i6400|p6600)
4949                 disable mipsdsp
4950                 disable mipsdspr2
4951             ;;
4952             loongson*)
4953                 enable loongson2
4954                 enable loongson3
4955                 enable local_aligned
4956                 enable simd_align_16
4957                 enable fast_64bit
4958                 enable fast_clz
4959                 enable fast_cmov
4960                 enable fast_unaligned
4961                 disable aligned_stack
4962                 disable mipsdsp
4963                 disable mipsdspr2
4964                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4965                 if [ $cc == gcc ]; then
4966                     gcc_version=$(gcc -dumpversion)
4967                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4968                         expensive_optimization_flag=""
4969                     else
4970                         expensive_optimization_flag="-fno-expensive-optimizations"
4971                     fi
4972                 fi
4973                 case $cpu in
4974                     loongson3*)
4975                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4976                     ;;
4977                     loongson2e)
4978                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4979                     ;;
4980                     loongson2f)
4981                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4982                     ;;
4983                 esac
4984             ;;
4985             *)
4986                 # Unknown CPU. Disable everything.
4987                 warn "unknown CPU. Disabling all MIPS optimizations."
4988                 disable mipsfpu
4989                 disable mipsdsp
4990                 disable mipsdspr2
4991                 disable msa
4992                 disable mmi
4993             ;;
4994         esac
4995
4996         case $cpu in
4997             24kc)
4998                 disable mipsfpu
4999                 disable mipsdsp
5000                 disable mipsdspr2
5001             ;;
5002             24kf*)
5003                 disable mipsdsp
5004                 disable mipsdspr2
5005             ;;
5006             24kec|34kc|1004kc)
5007                 disable mipsfpu
5008                 disable mipsdspr2
5009             ;;
5010             24kef*|34kf*|1004kf*)
5011                 disable mipsdspr2
5012             ;;
5013             74kc)
5014                 disable mipsfpu
5015             ;;
5016             p5600)
5017                 enable mips32r5
5018                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
5019             ;;
5020             i6400)
5021                 enable mips64r6
5022                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5023             ;;
5024             p6600)
5025                 enable mips64r6
5026                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5027             ;;
5028         esac
5029     else
5030         # We do not disable anything. Is up to the user to disable the unwanted features.
5031         warn 'generic cpu selected'
5032     fi
5033
5034 elif enabled ppc; then
5035
5036     disable ldbrx
5037
5038     case $(tolower $cpu) in
5039         601|ppc601|powerpc601)
5040             cpuflags="-mcpu=601"
5041             disable altivec
5042         ;;
5043         603*|ppc603*|powerpc603*)
5044             cpuflags="-mcpu=603"
5045             disable altivec
5046         ;;
5047         604*|ppc604*|powerpc604*)
5048             cpuflags="-mcpu=604"
5049             disable altivec
5050         ;;
5051         g3|75*|ppc75*|powerpc75*)
5052             cpuflags="-mcpu=750"
5053             disable altivec
5054         ;;
5055         g4|745*|ppc745*|powerpc745*)
5056             cpuflags="-mcpu=7450"
5057             disable vsx
5058         ;;
5059         74*|ppc74*|powerpc74*)
5060             cpuflags="-mcpu=7400"
5061             disable vsx
5062         ;;
5063         g5|970|ppc970|powerpc970)
5064             cpuflags="-mcpu=970"
5065             disable vsx
5066         ;;
5067         power[3-6]*)
5068             cpuflags="-mcpu=$cpu"
5069             disable vsx
5070         ;;
5071         power[7-8]*)
5072             cpuflags="-mcpu=$cpu"
5073         ;;
5074         cell)
5075             cpuflags="-mcpu=cell"
5076             enable ldbrx
5077             disable vsx
5078         ;;
5079         e500mc)
5080             cpuflags="-mcpu=e500mc"
5081             disable altivec
5082         ;;
5083         e500v2)
5084             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5085             disable altivec
5086             disable dcbzl
5087         ;;
5088         e500)
5089             cpuflags="-mcpu=8540 -mhard-float"
5090             disable altivec
5091             disable dcbzl
5092         ;;
5093     esac
5094
5095 elif enabled sparc; then
5096
5097     case $cpu in
5098         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5099             cpuflags="-mcpu=$cpu"
5100         ;;
5101         ultrasparc*|niagara[234])
5102             cpuflags="-mcpu=$cpu"
5103         ;;
5104     esac
5105
5106 elif enabled x86; then
5107
5108     case $cpu in
5109         i[345]86|pentium)
5110             cpuflags="-march=$cpu"
5111             disable i686
5112             disable mmx
5113         ;;
5114         # targets that do NOT support nopl and conditional mov (cmov)
5115         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5116             cpuflags="-march=$cpu"
5117             disable i686
5118         ;;
5119         # targets that do support nopl and conditional mov (cmov)
5120         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5121         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5122         |amdfam10|barcelona|b[dt]ver*|znver*)
5123             cpuflags="-march=$cpu"
5124             enable i686
5125             enable fast_cmov
5126         ;;
5127         # targets that do support conditional mov but on which it's slow
5128         pentium4|pentium4m|prescott|nocona)
5129             cpuflags="-march=$cpu"
5130             enable i686
5131             disable fast_cmov
5132         ;;
5133     esac
5134
5135 fi
5136
5137 if [ "$cpu" != generic ]; then
5138     add_cflags  $cpuflags
5139     add_asflags $cpuflags
5140     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5141 fi
5142
5143 # compiler sanity check
5144 test_exec <<EOF
5145 int main(void){ return 0; }
5146 EOF
5147 if test "$?" != 0; then
5148     echo "$cc is unable to create an executable file."
5149     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5150         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5151         echo "Only do this if you know what cross compiling means."
5152     fi
5153     die "C compiler test failed."
5154 fi
5155
5156 add_cppflags -D_ISOC99_SOURCE
5157 add_cxxflags -D__STDC_CONSTANT_MACROS
5158 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5159
5160 # some compilers silently accept -std=c11, so we also need to check that the
5161 # version macro is defined properly
5162 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5163     add_cflags -std=c11 ||
5164     check_cflags -std=c99
5165
5166 check_cppflags -D_FILE_OFFSET_BITS=64
5167 check_cppflags -D_LARGEFILE_SOURCE
5168
5169 add_host_cppflags -D_ISOC99_SOURCE
5170 check_host_cflags -std=c99
5171 check_host_cflags -Wall
5172 check_host_cflags $host_cflags_speed
5173
5174 check_64bit(){
5175     arch32=$1
5176     arch64=$2
5177     expr=${3:-'sizeof(void *) > 4'}
5178     test_code cc "" "int test[2*($expr) - 1]" &&
5179         subarch=$arch64 || subarch=$arch32
5180     enable $subarch
5181 }
5182
5183 case "$arch" in
5184     aarch64|alpha|ia64)
5185         enabled shared && enable_weak pic
5186     ;;
5187     mips)
5188         check_64bit mips mips64 '_MIPS_SIM > 1'
5189         enabled shared && enable_weak pic
5190     ;;
5191     parisc)
5192         check_64bit parisc parisc64
5193         enabled shared && enable_weak pic
5194     ;;
5195     ppc)
5196         check_64bit ppc ppc64
5197         enabled shared && enable_weak pic
5198     ;;
5199     s390)
5200         check_64bit s390 s390x
5201         enabled shared && enable_weak pic
5202     ;;
5203     sparc)
5204         check_64bit sparc sparc64
5205         enabled shared && enable_weak pic
5206     ;;
5207     x86)
5208         check_64bit x86_32 x86_64
5209         # Treat x32 as x64 for now. Note it also needs pic if shared
5210         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5211             subarch=x86_64 && enable x86_64 && disable x86_32
5212         if enabled x86_64; then
5213             enabled shared && enable_weak pic
5214             objformat=elf64
5215         fi
5216     ;;
5217 esac
5218
5219 # OS specific
5220 case $target_os in
5221     aix)
5222         SHFLAGS=-shared
5223         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5224         enabled shared && add_ldflags -Wl,-brtl
5225         arflags='-Xany -r -c'
5226         striptype=""
5227         ;;
5228     android)
5229         disable symver
5230         enable section_data_rel_ro
5231         add_cflags -fPIE
5232         add_ldexeflags -fPIE -pie
5233         SLIB_INSTALL_NAME='$(SLIBNAME)'
5234         SLIB_INSTALL_LINKS=
5235         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5236         ;;
5237     haiku)
5238         prefix_default="/boot/common"
5239         network_extralibs="-lnetwork"
5240         host_extralibs=
5241         ;;
5242     sunos)
5243         SHFLAGS='-shared -Wl,-h,$$(@F)'
5244         enabled x86 && append SHFLAGS -mimpure-text
5245         network_extralibs="-lsocket -lnsl"
5246         add_cppflags -D__EXTENSIONS__
5247         # When using suncc to build, the Solaris linker will mark
5248         # an executable with each instruction set encountered by
5249         # the Solaris assembler.  As our libraries contain their own
5250         # guards for processor-specific code, instead suppress
5251         # generation of the HWCAPS ELF section on Solaris x86 only.
5252         enabled_all suncc x86 &&
5253             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5254             add_ldflags -Wl,-M,mapfile
5255         nm_default='nm -P -g'
5256         striptype=""
5257         version_script='-M'
5258         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5259         ;;
5260     netbsd)
5261         disable symver
5262         oss_indev_extralibs="-lossaudio"
5263         oss_outdev_extralibs="-lossaudio"
5264         enabled gcc || check_ldflags -Wl,-zmuldefs
5265         ;;
5266     openbsd|bitrig)
5267         disable symver
5268         striptype=""
5269         SHFLAGS='-shared'
5270         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5271         SLIB_INSTALL_LINKS=
5272         oss_indev_extralibs="-lossaudio"
5273         oss_outdev_extralibs="-lossaudio"
5274         ;;
5275     dragonfly)
5276         disable symver
5277         ;;
5278     freebsd)
5279         ;;
5280     bsd/os)
5281         add_extralibs -lpoll -lgnugetopt
5282         strip="strip -d"
5283         ;;
5284     darwin)
5285         enabled ppc && add_asflags -force_cpusubtype_ALL
5286         install_name_dir_default='$(SHLIBDIR)'
5287         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5288         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5289         strip="${strip} -x"
5290         add_ldflags -Wl,-dynamic,-search_paths_first
5291         check_cflags -Werror=partial-availability
5292         SLIBSUF=".dylib"
5293         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5294         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5295         enabled x86_64 && objformat="macho64" || objformat="macho32"
5296         enabled_any pic shared x86_64 ||
5297             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5298         check_headers dispatch/dispatch.h &&
5299             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5300         if test -n "$sysroot"; then
5301             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5302             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5303         fi
5304         version_script='-exported_symbols_list'
5305         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5306         ;;
5307     msys*)
5308         die "Native MSYS builds are discouraged, please use the MINGW environment."
5309         ;;
5310     mingw32*|mingw64*)
5311         target_os=mingw32
5312         LIBTARGET=i386
5313         if enabled x86_64; then
5314             LIBTARGET="i386:x86-64"
5315         elif enabled arm; then
5316             LIBTARGET="arm"
5317         elif enabled aarch64; then
5318             LIBTARGET="arm64"
5319         fi
5320         if enabled shared; then
5321             # Cannot build both shared and static libs when using dllimport.
5322             disable static
5323         fi
5324         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5325         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5326         shlibdir_default="$bindir_default"
5327         SLIBPREF=""
5328         SLIBSUF=".dll"
5329         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5330         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5331         if test_cmd lib.exe -list; then
5332             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5333             if enabled x86_64; then
5334                 LIBTARGET=x64
5335             fi
5336         else
5337             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5338         fi
5339         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5340         SLIB_INSTALL_LINKS=
5341         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5342         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5343         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5344         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5345         enabled x86_64 && objformat="win64" || objformat="win32"
5346         dlltool="${cross_prefix}dlltool"
5347         ranlib=:
5348         enable dos_paths
5349         check_ldflags -Wl,--nxcompat,--dynamicbase
5350         # Lets work around some stupidity in binutils.
5351         # ld will strip relocations from executables even though we need them
5352         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5353         # however ld then forgets what the entry point should be (oops) so we
5354         # have to manually (re)set it.
5355         if enabled x86_32; then
5356             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5357         elif enabled x86_64; then
5358             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5359             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5360             # Set image base >4GB for extra entropy with HEASLR
5361             add_ldexeflags -Wl,--image-base,0x140000000
5362             append SHFLAGS -Wl,--image-base,0x180000000
5363         fi
5364         ;;
5365     win32|win64)
5366         disable symver
5367         if enabled shared; then
5368             # Link to the import library instead of the normal static library
5369             # for shared libs.
5370             LD_LIB='%.lib'
5371             # Cannot build both shared and static libs with MSVC or icl.
5372             disable static
5373         fi
5374         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5375         shlibdir_default="$bindir_default"
5376         SLIBPREF=""
5377         SLIBSUF=".dll"
5378         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5379         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5380         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5381         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5382         SLIB_INSTALL_LINKS=
5383         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5384         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5385         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5386         enabled x86_64 && objformat="win64" || objformat="win32"
5387         ranlib=:
5388         enable dos_paths
5389         ;;
5390     cygwin*)
5391         target_os=cygwin
5392         shlibdir_default="$bindir_default"
5393         SLIBPREF="cyg"
5394         SLIBSUF=".dll"
5395         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5396         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5397         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5398         SLIB_INSTALL_LINKS=
5399         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5400         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5401         enabled x86_64 && objformat="win64" || objformat="win32"
5402         enable dos_paths
5403         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5404         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5405         ;;
5406     *-dos|freedos|opendos)
5407         network_extralibs="-lsocket"
5408         objformat="coff"
5409         enable dos_paths
5410         ;;
5411     linux)
5412         enable section_data_rel_ro
5413         enabled_any arm aarch64 && enable_weak linux_perf
5414         ;;
5415     irix*)
5416         target_os=irix
5417         ranlib="echo ignoring ranlib"
5418         ;;
5419     os/2*)
5420         strip="lxlite -CS"
5421         striptype=""
5422         objformat="aout"
5423         add_cppflags -D_GNU_SOURCE
5424         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5425         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5426         LIBSUF="_s.a"
5427         SLIBPREF=""
5428         SLIBSUF=".dll"
5429         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5430         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5431         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5432             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5433             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5434             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5435             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5436         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5437             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5438         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5439         SLIB_INSTALL_LINKS=
5440         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5441         enable dos_paths
5442         enable_weak os2threads
5443         ;;
5444     gnu/kfreebsd)
5445         add_cppflags -D_BSD_SOURCE
5446         ;;
5447     gnu)
5448         ;;
5449     qnx)
5450         add_cppflags -D_QNX_SOURCE
5451         network_extralibs="-lsocket"
5452         ;;
5453     symbian)
5454         SLIBSUF=".dll"
5455         enable dos_paths
5456         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5457         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5458         add_ldflags -Wl,--target1-abs,--no-undefined \
5459                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5460                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5461         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5462                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5463                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5464         ;;
5465     minix)
5466         ;;
5467     none)
5468         ;;
5469     *)
5470         die "Unknown OS '$target_os'."
5471         ;;
5472 esac
5473
5474 # test if creating links works
5475 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5476 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5477 mkdir "$link_dest"
5478 $ln_s "$link_dest" "$link_name"
5479 touch "$link_dest/test_file"
5480 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5481     # create link to source path
5482     [ -e src ] && rm src
5483     $ln_s "$source_path" src
5484     source_link=src
5485 else
5486     # creating directory links doesn't work
5487     # fall back to using the full source path
5488     source_link="$source_path"
5489 fi
5490 # cleanup
5491 rm -r "$link_dest"
5492 rm -r "$link_name"
5493
5494 # determine libc flavour
5495
5496 probe_libc(){
5497     pfx=$1
5498     pfx_no_=${pfx%_}
5499     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5500     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5501         eval ${pfx}libc_type=uclibc
5502         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5503     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5504         eval ${pfx}libc_type=glibc
5505         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5506     # MinGW headers can be installed on Cygwin, so check for newlib first.
5507     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5508         eval ${pfx}libc_type=newlib
5509         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5510     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5511     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5512         eval ${pfx}libc_type=mingw64
5513         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5514             add_compat msvcrt/snprintf.o
5515             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5516         fi
5517         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5518         eval test \$${pfx_no_}cc_type = "gcc" &&
5519             add_${pfx}cppflags -D__printf__=__gnu_printf__
5520         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5521             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5522         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5523     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5524          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5525         eval ${pfx}libc_type=mingw32
5526         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5527             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5528             die "ERROR: MinGW32 runtime version must be >= 3.15."
5529         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5530         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5531             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5532         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5533             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5534         eval test \$${pfx_no_}cc_type = "gcc" &&
5535             add_${pfx}cppflags -D__printf__=__gnu_printf__
5536         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5537     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5538         eval ${pfx}libc_type=msvcrt
5539         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5540             if [ "$pfx" = host_ ]; then
5541                 add_host_cppflags -Dsnprintf=_snprintf
5542             else
5543                 add_compat strtod.o strtod=avpriv_strtod
5544                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5545                                              _snprintf=avpriv_snprintf  \
5546                                              vsnprintf=avpriv_vsnprintf
5547             fi
5548         fi
5549         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5550         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5551         # 0x601 by default unless something else is set by the user.
5552         # This can easily lead to us detecting functions only present
5553         # in such new versions and producing binaries requiring windows 7.0.
5554         # Therefore explicitly set the default to Vista unless the user has
5555         # set something else on the command line.
5556         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5557         # family. For these cases, configure is free to use any functions
5558         # found in the SDK headers by default. (Alternatively, we could force
5559         # _WIN32_WINNT to 0x0602 in that case.)
5560         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5561             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5562 #ifdef WINAPI_FAMILY
5563 #include <winapifamily.h>
5564 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5565 #error not desktop
5566 #endif
5567 #endif
5568 EOF
5569         if [ "$pfx" = "" ]; then
5570             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5571             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5572         fi
5573     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5574         eval ${pfx}libc_type=klibc
5575     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5576         eval ${pfx}libc_type=bionic
5577     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5578         eval ${pfx}libc_type=solaris
5579         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5580     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5581         eval ${pfx}libc_type=djgpp
5582         add_cppflags -U__STRICT_ANSI__
5583         add_cflags "-include $source_path/compat/djgpp/math.h"
5584         add_compat djgpp/math.o
5585     fi
5586     test_${pfx}cc <<EOF
5587 #include <time.h>
5588 void *v = localtime_r;
5589 EOF
5590 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5591 #include <time.h>
5592 void *v = localtime_r;
5593 EOF
5594
5595     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5596 }
5597
5598 probe_libc
5599 probe_libc host_
5600
5601 # hacks for compiler/libc/os combinations
5602
5603 case $libc_type in
5604     bionic)
5605         add_compat strtod.o strtod=avpriv_strtod
5606         ;;
5607 esac
5608
5609 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5610     add_cppflags '-I\$(SRC_PATH)/compat/float'
5611
5612 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5613
5614 set_default libdir
5615 : ${shlibdir_default:="$libdir"}
5616 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5617
5618 set_default $PATHS_LIST
5619 set_default nm
5620
5621 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5622
5623 enable_weak_pic() {
5624     disabled pic && return
5625     enable pic
5626     add_cppflags -DPIC
5627     case "$target_os" in
5628     mingw*|cygwin*|win*)
5629         ;;
5630     *)
5631         add_cflags -fPIC
5632         add_asflags -fPIC
5633         ;;
5634     esac
5635 }
5636
5637 enabled pic && enable_weak_pic
5638
5639 test_cc <<EOF || die "Symbol mangling check failed."
5640 int ff_extern;
5641 EOF
5642 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5643 extern_prefix=${sym%%ff_extern*}
5644
5645 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5646
5647 for restrict_keyword in restrict __restrict__ __restrict ""; do
5648     test_code cc "" "char * $restrict_keyword p" && break
5649 done
5650
5651 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5652
5653 # The global variable ensures the bits appear unchanged in the object file.
5654 test_cc <<EOF || die "endian test failed"
5655 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5656 EOF
5657 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5658
5659 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5660
5661 if ! enabled ppc64 || enabled bigendian; then
5662     disable vsx
5663 fi
5664
5665 check_gas() {
5666     log "check_gas using '$as' as AS"
5667     # :vararg is used on aarch64, arm and ppc altivec
5668     check_as vararg "
5669 .macro m n, y:vararg=0
5670 \n: .int \y
5671 .endm
5672 m x" || return 1
5673     # .altmacro is only used in arm asm
5674     ! enabled arm || check_as gnu_as ".altmacro"
5675 }
5676
5677 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5678     nogas=:
5679     enabled_any arm aarch64 && nogas=die
5680     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5681     as_noop=-v
5682
5683     case $as_type in
5684         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5685         gcc)  gaspp_as_type=gas ;;
5686         *)    gaspp_as_type=$as_type ;;
5687     esac
5688
5689     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5690
5691     test "${as#*gas-preprocessor.pl}" != "$as" ||
5692     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5693         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5694
5695     if ! check_gas ; then
5696         as=${gas:=$as}
5697         check_gas || \
5698             $nogas "GNU assembler not found, install/update gas-preprocessor"
5699     fi
5700
5701     check_as as_func ".func test
5702                       .endfunc"
5703 fi
5704
5705 check_inline_asm inline_asm_labels '"1:\n"'
5706
5707 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5708
5709 if enabled aarch64; then
5710     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5711     # internal assembler in clang 3.3 does not support this instruction
5712     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5713     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5714
5715     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5716
5717 elif enabled alpha; then
5718
5719     check_cflags -mieee
5720
5721 elif enabled arm; then
5722
5723     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5724     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5725 float func(float a, float b){ return a+b; }
5726 EOF
5727     enabled thumb && check_cflags -mthumb || check_cflags -marm
5728
5729     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5730         :
5731     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5732         :
5733     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5734         case "${cross_prefix:-$cc}" in
5735             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5736             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5737 __asm__ (".eabi_attribute 28, 1");
5738 int main(void) { return 0; }
5739 EOF
5740         esac
5741         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5742     fi
5743
5744     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5745     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5746     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5747     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5748     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5749     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5750     enabled setend  && check_insn setend  'setend be'
5751
5752     [ $target_os = linux ] || [ $target_os = android ] ||
5753         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5754             $ARCH_EXT_LIST_ARM
5755
5756     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5757
5758     check_as as_arch_directive ".arch armv7-a"
5759     check_as as_dn_directive   "ra .dn d0.i16"
5760     check_as as_fpu_directive  ".fpu neon"
5761
5762     # llvm's integrated assembler supports .object_arch from llvm 3.5
5763     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5764         check_as as_object_arch ".object_arch armv4"
5765
5766     # MS armasm fails to assemble our PIC constructs
5767     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5768
5769 elif enabled mips; then
5770
5771     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5772     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5773     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5774
5775     # Enable minimum ISA based on selected options
5776     if enabled mips64; then
5777         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5778         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5779         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5780     else
5781         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5782         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5783         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5784         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5785     fi
5786
5787     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5788     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5789     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5790     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5791     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5792     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5793
5794     if enabled bigendian && enabled msa; then
5795         disable msa
5796     fi
5797
5798 elif enabled parisc; then
5799
5800     if enabled gcc; then
5801         case $($cc -dumpversion) in
5802             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5803         esac
5804     fi
5805
5806 elif enabled ppc; then
5807
5808     enable local_aligned
5809
5810     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5811     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5812     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5813     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5814
5815     if enabled altivec; then
5816         check_cflags -maltivec -mabi=altivec
5817
5818         # check if our compiler supports Motorola AltiVec C API
5819         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5820                                     vector signed int v2 = (vector signed int) { 1 };
5821                                     v1 = vec_add(v1, v2);"
5822
5823         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5824     fi
5825
5826     if enabled vsx; then
5827         check_cflags -mvsx &&
5828         check_cc vsx altivec.h "int v[4] = { 0 };
5829                                 vector signed int v1 = vec_vsx_ld(0, v);"
5830     fi
5831
5832     if enabled power8; then
5833         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5834     fi
5835
5836 elif enabled x86; then
5837
5838     check_builtin rdtsc    intrin.h   "__rdtsc()"
5839     check_builtin mm_empty mmintrin.h "_mm_empty()"
5840
5841     enable local_aligned
5842
5843     # check whether EBP is available on x86
5844     # As 'i' is stored on the stack, this program will crash
5845     # if the base pointer is used to access it because the
5846     # base pointer is cleared in the inline assembly code.
5847     check_exec_crash <<EOF && enable ebp_available
5848 volatile int i=0;
5849 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5850 return i;
5851 EOF
5852
5853     # check whether EBX is available on x86
5854     check_inline_asm ebx_available '""::"b"(0)' &&
5855         check_inline_asm ebx_available '"":::"%ebx"'
5856
5857     # check whether xmm clobbers are supported
5858     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5859
5860     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5861         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5862
5863     # check whether binutils is new enough to compile SSSE3/MMXEXT
5864     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5865     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5866
5867     probe_x86asm(){
5868         x86asmexe_probe=$1
5869         if test_cmd $x86asmexe_probe -v; then
5870             x86asmexe=$x86asmexe_probe
5871             x86asm_type=nasm
5872             x86asm_debug="-g -F dwarf"
5873             X86ASMDEP=
5874             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5875         elif test_cmd $x86asmexe_probe --version; then
5876             x86asmexe=$x86asmexe_probe
5877             x86asm_type=yasm
5878             x86asm_debug="-g dwarf2"
5879             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5880             X86ASM_DEPFLAGS=
5881         fi
5882         check_x86asm x86asm "movbe ecx, [5]"
5883     }
5884
5885     if ! disabled_any asm mmx x86asm; then
5886         disable x86asm
5887         for program in $x86asmexe nasm yasm; do
5888             probe_x86asm $program && break
5889         done
5890         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5891         X86ASMFLAGS="-f $objformat"
5892         enabled pic               && append X86ASMFLAGS "-DPIC"
5893         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5894         case "$objformat" in
5895             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5896         esac
5897
5898         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5899         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5900         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5901         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5902         check_x86asm cpunop          "CPU amdnop"
5903     fi
5904
5905     case "$cpu" in
5906         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5907             disable fast_clz
5908         ;;
5909     esac
5910
5911 fi
5912
5913 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5914
5915 check_ldflags -Wl,--as-needed
5916 check_ldflags -Wl,-z,noexecstack
5917
5918 if ! disabled network; then
5919     check_func getaddrinfo $network_extralibs
5920     check_func inet_aton $network_extralibs
5921
5922     check_type netdb.h "struct addrinfo"
5923     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5924     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5925     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5926     check_type poll.h "struct pollfd"
5927     check_type netinet/sctp.h "struct sctp_event_subscribe"
5928     check_struct "sys/socket.h" "struct msghdr" msg_flags
5929     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5930     check_type netinet/in.h "struct sockaddr_in6"
5931     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5932     check_type "sys/types.h sys/socket.h" socklen_t
5933
5934     # Prefer arpa/inet.h over winsock2
5935     if check_headers arpa/inet.h ; then
5936         check_func closesocket
5937     elif check_headers winsock2.h ; then
5938         check_func_headers winsock2.h closesocket -lws2 &&
5939             network_extralibs="-lws2" ||
5940         { check_func_headers winsock2.h closesocket -lws2_32 &&
5941             network_extralibs="-lws2_32"; } || disable winsock2_h network
5942         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5943
5944         check_type ws2tcpip.h socklen_t
5945         check_type ws2tcpip.h "struct addrinfo"
5946         check_type ws2tcpip.h "struct group_source_req"
5947         check_type ws2tcpip.h "struct ip_mreq_source"
5948         check_type ws2tcpip.h "struct ipv6_mreq"
5949         check_type winsock2.h "struct pollfd"
5950         check_struct winsock2.h "struct sockaddr" sa_len
5951         check_type ws2tcpip.h "struct sockaddr_in6"
5952         check_type ws2tcpip.h "struct sockaddr_storage"
5953     else
5954         disable network
5955     fi
5956 fi
5957
5958 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5959 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5960 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5961 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5962 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5963 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5964 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5965
5966 case "$custom_allocator" in
5967     jemalloc)
5968         # jemalloc by default does not use a prefix
5969         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5970     ;;
5971     tcmalloc)
5972         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
5973         malloc_prefix=tc_
5974     ;;
5975 esac
5976
5977 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5978 check_func  ${malloc_prefix}memalign            && enable memalign
5979 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5980
5981 check_func  access
5982 check_func_headers stdlib.h arc4random
5983 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
5984 check_func  fcntl
5985 check_func  fork
5986 check_func  gethrtime
5987 check_func  getopt
5988 check_func  getrusage
5989 check_func  gettimeofday
5990 check_func  isatty
5991 check_func  mkstemp
5992 check_func  mmap
5993 check_func  mprotect
5994 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5995 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
5996 check_func  sched_getaffinity
5997 check_func  setrlimit
5998 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5999 check_func  strerror_r
6000 check_func  sysconf
6001 check_func  sysctl
6002 check_func  usleep
6003
6004 check_func_headers conio.h kbhit
6005 check_func_headers io.h setmode
6006 check_func_headers lzo/lzo1x.h lzo1x_999_compress
6007 check_func_headers mach/mach_time.h mach_absolute_time
6008 check_func_headers stdlib.h getenv
6009 check_func_headers sys/stat.h lstat
6010
6011 check_func_headers windows.h GetProcessAffinityMask
6012 check_func_headers windows.h GetProcessTimes
6013 check_func_headers windows.h GetSystemTimeAsFileTime
6014 check_func_headers windows.h LoadLibrary
6015 check_func_headers windows.h MapViewOfFile
6016 check_func_headers windows.h PeekNamedPipe
6017 check_func_headers windows.h SetConsoleTextAttribute
6018 check_func_headers windows.h SetConsoleCtrlHandler
6019 check_func_headers windows.h Sleep
6020 check_func_headers windows.h VirtualAlloc
6021 check_func_headers glob.h glob
6022 enabled xlib &&
6023     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
6024
6025 check_headers direct.h
6026 check_headers dirent.h
6027 check_headers dxgidebug.h
6028 check_headers dxva.h
6029 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
6030 check_headers io.h
6031 check_headers linux/perf_event.h
6032 check_headers libcrystalhd/libcrystalhd_if.h
6033 check_headers malloc.h
6034 check_headers net/udplite.h
6035 check_headers poll.h
6036 check_headers sys/param.h
6037 check_headers sys/resource.h
6038 check_headers sys/select.h
6039 check_headers sys/time.h
6040 check_headers sys/un.h
6041 check_headers termios.h
6042 check_headers unistd.h
6043 check_headers valgrind/valgrind.h
6044 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6045 check_headers windows.h
6046 check_headers X11/extensions/XvMClib.h
6047 check_headers asm/types.h
6048
6049 # it seems there are versions of clang in some distros that try to use the
6050 # gcc headers, which explodes for stdatomic
6051 # so we also check that atomics actually work here
6052 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6053
6054 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6055 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6056     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6057 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6058 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6059 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6060
6061 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6062 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6063 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6064
6065 enabled appkit       && check_apple_framework AppKit
6066 enabled audiotoolbox && check_apple_framework AudioToolbox
6067 enabled avfoundation && check_apple_framework AVFoundation
6068 enabled coreimage    && check_apple_framework CoreImage
6069 enabled videotoolbox && check_apple_framework VideoToolbox
6070
6071 check_apple_framework CoreFoundation
6072 check_apple_framework CoreMedia
6073 check_apple_framework CoreVideo
6074
6075 enabled avfoundation && {
6076     disable coregraphics applicationservices
6077     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6078     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6079
6080 enabled videotoolbox && {
6081     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6082     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6083     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6084     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
6085     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
6086     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
6087 }
6088
6089 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6090
6091 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6092 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6093 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6094 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6095 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6096
6097 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6098 check_type "vdpau/vdpau.h" "VdpPictureInfoVP9"
6099
6100 if [ -z "$nvccflags" ]; then
6101     nvccflags=$nvccflags_default
6102 fi
6103
6104 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6105     nvccflags="$nvccflags -m64"
6106 else
6107     nvccflags="$nvccflags -m32"
6108 fi
6109
6110 if enabled cuda_nvcc; then
6111     nvccflags="$nvccflags -ptx"
6112 else
6113     nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
6114     check_nvcc cuda_llvm
6115 fi
6116
6117 if ! disabled ffnvcodec; then
6118     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6119     check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.0" "$ffnv_hdr_list" "" || \
6120       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.8 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6121       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.9 ffnvcodec < 8.2" "$ffnv_hdr_list" "" || \
6122       check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.9 ffnvcodec < 8.1" "$ffnv_hdr_list" ""
6123 fi
6124
6125 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6126
6127 if ! disabled w32threads && ! enabled pthreads; then
6128     check_func_headers "windows.h process.h" _beginthreadex &&
6129         check_type "windows.h" CONDITION_VARIABLE &&
6130         check_type "windows.h" INIT_ONCE &&
6131         enable w32threads || disable w32threads
6132     if ! enabled w32threads && enabled winrt; then
6133         check_func_headers "windows.h" CreateThread &&
6134             enable w32threads || disable w32threads
6135     fi
6136 fi
6137
6138 # check for some common methods of building with pthread support
6139 # do this before the optional library checks as some of them require pthreads
6140 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6141     if check_lib pthreads pthread.h pthread_join   -pthread &&
6142        check_lib pthreads pthread.h pthread_create -pthread; then
6143         add_cflags -pthread
6144     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6145          check_lib pthreads pthread.h pthread_create -pthreads; then
6146         add_cflags -pthreads
6147     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6148          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6149         add_cflags -ldl -pthread
6150     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6151          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6152         :
6153     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6154          check_lib pthreads pthread.h pthread_create -lpthread; then
6155         :
6156     elif check_func pthread_join && check_func pthread_create; then
6157         enable pthreads
6158     fi
6159     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6160
6161     if enabled pthreads; then
6162         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6163         check_func pthread_cancel $pthreads_extralibs
6164     fi
6165 fi
6166
6167 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6168                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6169 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6170 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6171
6172 # On some systems dynamic loading requires no extra linker flags
6173 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6174
6175 check_lib libm math.h sin -lm
6176
6177 atan2f_args=2
6178 copysign_args=2
6179 hypot_args=2
6180 ldexpf_args=2
6181 powf_args=2
6182
6183 for func in $MATH_FUNCS; do
6184     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6185 done
6186
6187 for func in $COMPLEX_FUNCS; do
6188     eval check_complexfunc $func \${${func}_args:-1}
6189 done
6190
6191 # these are off by default, so fail if requested and not available
6192 enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
6193 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6194 enabled decklink          && { require_headers DeckLinkAPI.h &&
6195                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6196 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6197 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6198 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6199 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6200 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6201 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6202 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6203                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6204                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6205 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6206 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6207 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6208 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6209 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6210 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6211                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6212                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6213 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6214 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6215 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d/dav1d.h" dav1d_version
6216 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6217 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6218 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6219 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6220                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6221                                  warn "using libfdk without pkg-config"; } }
6222 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"
6223 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6224 enabled fontconfig        && enable libfontconfig
6225 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6226 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6227 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6228 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6229                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6230 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6231                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6232                                done || die "ERROR: libgsm not found"; }
6233 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6234 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6235 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6236 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6237 # While it may appear that require is being used as a pkg-config
6238 # fallback for libmfx, it is actually being used to detect a different
6239 # installation route altogether.  If libmfx is installed via the Intel
6240 # Media SDK or Intel Media Server Studio, these don't come with
6241 # pkg-config support.  Instead, users should make sure that the build
6242 # can find the libraries and headers through other means.
6243 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6244                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6245 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6246 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6247 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine ||
6248                                require libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine -lmysofa $zlib_extralibs; }
6249 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6250                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6251                                die "ERROR: libnpp not found"; }
6252 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6253 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6254 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6255                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6256                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6257                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6258 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6259 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6260                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6261 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6262 enabled libopus           && {
6263     enabled libopus_decoder && {
6264         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6265     }
6266     enabled libopus_encoder && {
6267         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6268     }
6269 }
6270 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6271 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6272 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6273 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6274 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6275 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6276                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6277 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6278 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6279 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6280 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6281 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6282 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6283 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6284 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6285 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6286 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6287                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6288                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6289 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6290 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6291 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6292 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6293 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6294                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6295
6296 enabled libvpx            && {
6297     enabled libvpx_vp8_decoder && {
6298         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6299             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"
6300     }
6301     enabled libvpx_vp8_encoder && {
6302         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6303             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"
6304     }
6305     enabled libvpx_vp9_decoder && {
6306         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6307             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"
6308     }
6309     enabled libvpx_vp9_encoder && {
6310         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6311             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"
6312     }
6313     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6314         die "libvpx enabled but no supported decoders found"
6315     fi
6316 }
6317
6318 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6319 enabled libwebp           && {
6320     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6321     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6322 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6323                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6324                                  warn "using libx264 without pkg-config"; } } &&
6325                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6326                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6327 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6328                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6329 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6330 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6331 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6332 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6333 enabled libzmq            && require_pkg_config libzmq "libzmq >= 4.2.1" zmq.h zmq_ctx_new
6334 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6335                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6336                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6337 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6338 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6339                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6340                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6341                                die "ERROR: mbedTLS not found"; }
6342 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6343 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6344                                { ! enabled cross_compile &&
6345                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6346                                  add_ldflags -L/opt/vc/lib/ &&
6347                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6348                                die "ERROR: mmal not found" &&
6349                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6350 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6351                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6352                                die "ERROR: openal not found"; } &&
6353                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6354                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6355 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6356                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6357                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6358                                die "ERROR: opencl not found"; } &&
6359                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6360                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6361                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6362 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6363                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6364                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6365                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6366                                die "ERROR: opengl not found."
6367                              }
6368 enabled omx_rpi           && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame ||
6369                                { ! enabled cross_compile &&
6370                                  add_cflags -isystem/opt/vc/include/IL &&
6371                                  test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame; } ||
6372                                die "ERROR: OpenMAX IL headers from raspberrypi/firmware not found"; } &&
6373                              enable omx
6374 enabled omx               && require_headers OMX_Core.h
6375 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6376                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6377                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6378                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6379                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6380                                die "ERROR: openssl not found"; }
6381 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6382 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6383                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6384                                { enabled libdrm ||
6385                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6386                              }
6387 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6388
6389
6390 if enabled gcrypt; then
6391     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6392     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6393         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6394         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6395         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6396             die "ERROR: gcrypt not found"
6397         add_cflags $gcrypt_cflags
6398     else
6399         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6400     fi
6401 fi
6402
6403 if enabled sdl2; then
6404     SDL2_CONFIG="${cross_prefix}sdl2-config"
6405     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6406     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6407         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6408         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6409         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6410         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6411         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6412             enable sdl2
6413     fi
6414     if test $target_os = "mingw32"; then
6415         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6416     fi
6417 fi
6418
6419 if enabled decklink; then
6420     case $target_os in
6421         mingw32*|mingw64*|win32|win64)
6422             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6423             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6424             ;;
6425     esac
6426 fi
6427
6428 enabled securetransport &&
6429     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6430     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6431         disable securetransport
6432
6433 enabled securetransport &&
6434     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6435
6436 enabled schannel &&
6437     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6438     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6439     schannel_extralibs="-lsecur32" ||
6440         disable schannel
6441
6442 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6443 enabled makeinfo \
6444     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6445     && enable makeinfo_html || disable makeinfo_html
6446 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6447 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6448 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6449 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6450
6451 # check V4L2 codecs available in the API
6452 if enabled v4l2_m2m; then
6453     check_headers linux/fb.h
6454     check_headers linux/videodev2.h
6455     test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6456     check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6457     check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6458     check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6459     check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6460     check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6461     check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6462     check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6463     check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6464     check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6465     check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6466 fi
6467
6468 check_headers sys/videoio.h
6469 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6470
6471 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6472 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6473 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6474 # w32api 3.12 had it defined wrong
6475 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6476
6477 check_type "dshow.h" IBaseFilter
6478
6479 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6480 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6481     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6482     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6483     check_headers "dev/ic/bt8xx.h"
6484
6485 if check_struct sys/soundcard.h audio_buf_info bytes; then
6486     enable_sanitized sys/soundcard.h
6487 else
6488     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6489     #include <sys/soundcard.h>
6490     audio_buf_info abc;
6491 EOF
6492 fi
6493
6494 enabled alsa && { check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6495                   check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound; }
6496
6497 enabled libjack &&
6498     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6499
6500 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6501
6502 if enabled libcdio; then
6503     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6504     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6505     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6506     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6507     die "ERROR: No usable libcdio/cdparanoia found"
6508 fi
6509
6510 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6511     disable libxcb_shm libxcb_shape libxcb_xfixes
6512
6513 if enabled libxcb; then
6514     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6515     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6516     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6517 fi
6518
6519 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6520
6521 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6522 # the desktop api partition
6523 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6524 #ifdef WINAPI_FAMILY
6525 #include <winapifamily.h>
6526 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6527 #error desktop, not uwp
6528 #else
6529 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6530 #endif
6531 #else
6532 #error no family set
6533 #endif
6534 EOF
6535
6536 enabled vaapi &&
6537     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6538
6539 if enabled vaapi; then
6540     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6541
6542     if enabled xlib; then
6543         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6544     fi
6545
6546     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6547
6548     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6549     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6550     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6551     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6552     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6553     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6554     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6555 fi
6556
6557 if enabled_all opencl libdrm ; then
6558     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6559         enable opencl_drm_beignet
6560     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6561         enable opencl_drm_arm
6562 fi
6563
6564 if enabled_all opencl vaapi ; then
6565     if enabled opencl_drm_beignet ; then
6566         enable opencl_vaapi_beignet
6567     else
6568         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6569             enable opencl_vaapi_intel_media
6570     fi
6571 fi
6572
6573 if enabled_all opencl dxva2 ; then
6574     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6575         enable opencl_dxva2
6576 fi
6577
6578 if enabled_all opencl d3d11va ; then
6579     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6580         enable opencl_d3d11
6581 fi
6582
6583 enabled vdpau &&
6584     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6585
6586 enabled vdpau &&
6587     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6588
6589 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6590
6591 if enabled x86; then
6592     case $target_os in
6593         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6594             ;;
6595         *)
6596             disable ffnvcodec cuvid nvdec nvenc
6597             ;;
6598     esac
6599 elif enabled ppc64 && ! enabled bigendian; then
6600     case $target_os in
6601         linux)
6602             ;;
6603         *)
6604             disable ffnvcodec cuvid nvdec nvenc
6605             ;;
6606     esac
6607 else
6608     disable ffnvcodec cuvid nvdec nvenc
6609 fi
6610
6611 enabled ffnvcodec && enable cuda
6612
6613 enabled nvenc &&
6614     test_cc -I$source_path <<EOF || disable nvenc
6615 #include <ffnvcodec/nvEncodeAPI.h>
6616 NV_ENCODE_API_FUNCTION_LIST flist;
6617 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6618 int main(void) { return 0; }
6619 EOF
6620
6621 enabled amf &&
6622     check_cpp_condition amf "AMF/core/Version.h" \
6623         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400090000"
6624
6625 # Funny iconv installations are not unusual, so check it after all flags have been set
6626 if enabled libc_iconv; then
6627     check_func_headers iconv.h iconv
6628 elif enabled iconv; then
6629     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6630 fi
6631
6632 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6633
6634 # add some useful compiler flags if supported
6635 check_cflags -Wdeclaration-after-statement
6636 check_cflags -Wall
6637 check_cflags -Wdisabled-optimization
6638 check_cflags -Wpointer-arith
6639 check_cflags -Wredundant-decls
6640 check_cflags -Wwrite-strings
6641 check_cflags -Wtype-limits
6642 check_cflags -Wundef
6643 check_cflags -Wmissing-prototypes
6644 check_cflags -Wno-pointer-to-int-cast
6645 check_cflags -Wstrict-prototypes
6646 check_cflags -Wempty-body
6647
6648 if enabled extra_warnings; then
6649     check_cflags -Wcast-qual
6650     check_cflags -Wextra
6651     check_cflags -Wpedantic
6652 fi
6653
6654 check_disable_warning(){
6655     warning_flag=-W${1#-Wno-}
6656     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6657 }
6658
6659 test_cflags -Werror=unused-command-line-argument &&
6660     append unknown_warning_flags "-Werror=unused-command-line-argument"
6661 test_cflags -Werror=unknown-warning-option &&
6662     append unknown_warning_flags "-Werror=unknown-warning-option"
6663
6664 check_disable_warning -Wno-parentheses
6665 check_disable_warning -Wno-switch
6666 check_disable_warning -Wno-format-zero-length
6667 check_disable_warning -Wno-pointer-sign
6668 check_disable_warning -Wno-unused-const-variable
6669 check_disable_warning -Wno-bool-operation
6670 check_disable_warning -Wno-char-subscripts
6671
6672 check_disable_warning_headers(){
6673     warning_flag=-W${1#-Wno-}
6674     test_cflags $warning_flag && add_cflags_headers $1
6675 }
6676
6677 check_disable_warning_headers -Wno-deprecated-declarations
6678 check_disable_warning_headers -Wno-unused-variable
6679
6680 test_cc <<EOF && enable blocks_extension
6681 void (^block)(void);
6682 EOF
6683
6684 # add some linker flags
6685 check_ldflags -Wl,--warn-common
6686 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6687 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6688 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6689
6690 # add some strip flags
6691 check_stripflags -x
6692
6693 enabled neon_clobber_test &&
6694     check_ldflags -Wl,--wrap,avcodec_open2              \
6695                   -Wl,--wrap,avcodec_decode_audio4      \
6696                   -Wl,--wrap,avcodec_decode_video2      \
6697                   -Wl,--wrap,avcodec_decode_subtitle2   \
6698                   -Wl,--wrap,avcodec_encode_audio2      \
6699                   -Wl,--wrap,avcodec_encode_video2      \
6700                   -Wl,--wrap,avcodec_encode_subtitle    \
6701                   -Wl,--wrap,avcodec_send_packet        \
6702                   -Wl,--wrap,avcodec_receive_packet     \
6703                   -Wl,--wrap,avcodec_send_frame         \
6704                   -Wl,--wrap,avcodec_receive_frame      \
6705                   -Wl,--wrap,swr_convert                \
6706                   -Wl,--wrap,avresample_convert ||
6707     disable neon_clobber_test
6708
6709 enabled xmm_clobber_test &&
6710     check_ldflags -Wl,--wrap,avcodec_open2              \
6711                   -Wl,--wrap,avcodec_decode_audio4      \
6712                   -Wl,--wrap,avcodec_decode_video2      \
6713                   -Wl,--wrap,avcodec_decode_subtitle2   \
6714                   -Wl,--wrap,avcodec_encode_audio2      \
6715                   -Wl,--wrap,avcodec_encode_video2      \
6716                   -Wl,--wrap,avcodec_encode_subtitle    \
6717                   -Wl,--wrap,avcodec_send_packet        \
6718                   -Wl,--wrap,avcodec_receive_packet     \
6719                   -Wl,--wrap,avcodec_send_frame         \
6720                   -Wl,--wrap,avcodec_receive_frame      \
6721                   -Wl,--wrap,swr_convert                \
6722                   -Wl,--wrap,avresample_convert         \
6723                   -Wl,--wrap,sws_scale ||
6724     disable xmm_clobber_test
6725
6726 check_ld "cc" proper_dce <<EOF
6727 extern const int array[512];
6728 static inline int func(void) { return array[0]; }
6729 int main(void) { return 0; }
6730 EOF
6731
6732 if enabled proper_dce; then
6733     echo "X { local: *; };" > $TMPV
6734     if test_ldflags -Wl,${version_script},$TMPV; then
6735         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6736         quotes='""'
6737         test_cc <<EOF && enable symver_asm_label
6738 void ff_foo(void) __asm__ ("av_foo@VERSION");
6739 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6740 EOF
6741         test_cc <<EOF && enable symver_gnu_asm
6742 __asm__(".symver ff_foo,av_foo@VERSION");
6743 void ff_foo(void) {}
6744 EOF
6745     fi
6746 fi
6747
6748 if [ -z "$optflags" ]; then
6749     if enabled small; then
6750         optflags=$cflags_size
6751     elif enabled optimizations; then
6752         optflags=$cflags_speed
6753     else
6754         optflags=$cflags_noopt
6755     fi
6756 fi
6757
6758 check_optflags(){
6759     check_cflags "$@"
6760     enabled lto && check_ldflags "$@"
6761 }
6762
6763 check_optflags $optflags
6764 check_optflags -fno-math-errno
6765 check_optflags -fno-signed-zeros
6766
6767 if enabled lto; then
6768     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6769     check_cflags  -flto
6770     check_ldflags -flto $cpuflags
6771     disable inline_asm_direct_symbol_refs
6772 fi
6773
6774 enabled ftrapv && check_cflags -ftrapv
6775
6776 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6777 int x;
6778 EOF
6779
6780
6781 if enabled icc; then
6782     # Just warnings, no remarks
6783     check_cflags -w1
6784     # -wd: Disable following warnings
6785     # 144, 167, 556: -Wno-pointer-sign
6786     # 188: enumerated type mixed with another type
6787     # 1292: attribute "foo" ignored
6788     # 1419: external declaration in primary source file
6789     # 10006: ignoring unknown option -fno-signed-zeros
6790     # 10148: ignoring unknown option -Wno-parentheses
6791     # 10156: ignoring option '-W'; no argument required
6792     # 13200: No EMMS instruction before call to function
6793     # 13203: No EMMS instruction before return from function
6794     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6795     # 11030: Warning unknown option --as-needed
6796     # 10156: ignoring option '-export'; no argument required
6797     check_ldflags -wd10156,11030
6798     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6799     enable ebp_available
6800     # The test above does not test linking
6801     enabled lto && disable symver_asm_label
6802     if enabled x86_32; then
6803         icc_version=$($cc -dumpversion)
6804         test ${icc_version%%.*} -ge 11 &&
6805             check_cflags -falign-stack=maintain-16-byte ||
6806             disable aligned_stack
6807     fi
6808 elif enabled gcc; then
6809     check_optflags -fno-tree-vectorize
6810     check_cflags -Werror=format-security
6811     check_cflags -Werror=implicit-function-declaration
6812     check_cflags -Werror=missing-prototypes
6813     check_cflags -Werror=return-type
6814     check_cflags -Werror=vla
6815     check_cflags -Wformat
6816     check_cflags -fdiagnostics-color=auto
6817     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6818     if enabled x86_32; then
6819         case $target_os in
6820         *bsd*)
6821             # BSDs don't guarantee a 16 byte aligned stack, but we can
6822             # request GCC to try to maintain 16 byte alignment throughout
6823             # function calls. Library entry points that might call assembly
6824             # functions align the stack. (The parameter means 2^4 bytes.)
6825             check_cflags -mpreferred-stack-boundary=4
6826             ;;
6827         esac
6828     fi
6829 elif enabled llvm_gcc; then
6830     check_cflags -mllvm -stack-alignment=16
6831 elif enabled clang; then
6832     if enabled x86_32; then
6833         # Clang doesn't support maintaining alignment without assuming the
6834         # same alignment in every function. If 16 byte alignment would be
6835         # enabled, one would also have to either add attribute_align_arg on
6836         # every single entry point into the libraries or enable -mstackrealign
6837         # (doing stack realignment in every single function).
6838         case $target_os in
6839         mingw32|win32|*bsd*)
6840             disable aligned_stack
6841             ;;
6842         *)
6843             check_cflags -mllvm -stack-alignment=16
6844             check_cflags -mstack-alignment=16
6845             ;;
6846         esac
6847     else
6848         check_cflags -mllvm -stack-alignment=16
6849         check_cflags -mstack-alignment=16
6850     fi
6851     check_cflags -Qunused-arguments
6852     check_cflags -Werror=implicit-function-declaration
6853     check_cflags -Werror=missing-prototypes
6854     check_cflags -Werror=return-type
6855 elif enabled cparser; then
6856     add_cflags -Wno-missing-variable-declarations
6857     add_cflags -Wno-empty-statement
6858 elif enabled armcc; then
6859     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6860     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6861     # 2523: use of inline assembly is deprecated
6862     add_cflags -W${armcc_opt},--diag_suppress=2523
6863     add_cflags -W${armcc_opt},--diag_suppress=1207
6864     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6865     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6866     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6867     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6868 elif enabled pathscale; then
6869     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6870     disable inline_asm
6871 elif enabled_any msvc icl; then
6872     enabled x86_32 && disable aligned_stack
6873     enabled_all x86_32 debug && add_cflags -Oy-
6874     enabled debug && add_ldflags -debug
6875     enable pragma_deprecated
6876     if enabled icl; then
6877         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6878         # (correctly) on icl 13.x.
6879         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6880             add_cflags -Qansi-alias
6881         # Some inline asm is not compilable in debug
6882         if enabled debug; then
6883             disable ebp_available
6884             disable ebx_available
6885         fi
6886     fi
6887     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6888     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6889     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6890     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6891     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6892     # MSVC 2013 and newer can handle it fine.
6893     # If this declspec fails, force including stdlib.h before the restrict redefinition
6894     # happens in config.h.
6895     if [ $restrict_keyword != restrict ]; then
6896         test_cc <<EOF || add_cflags -FIstdlib.h
6897 __declspec($restrict_keyword) void *foo(int);
6898 EOF
6899     fi
6900     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6901     # Issue has been fixed in MSVC v19.00.24218.
6902     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6903         check_cflags -d2SSAOptimizer-
6904     # enable utf-8 source processing on VS2015 U2 and newer
6905     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6906         add_cflags -utf-8
6907 fi
6908
6909 for pfx in "" host_; do
6910     varname=${pfx%_}cc_type
6911     eval "type=\$$varname"
6912     if [ "$type" = "msvc" ]; then
6913         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6914 static inline int foo(int a) { return a; }
6915 EOF
6916     fi
6917 done
6918
6919 case $as_type in
6920     clang)
6921         add_asflags -Qunused-arguments
6922     ;;
6923 esac
6924
6925 case $ld_type in
6926     clang)
6927         check_ldflags -Qunused-arguments
6928     ;;
6929 esac
6930
6931 enable frame_thread_encoder
6932
6933 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6934
6935 check_deps $CONFIG_LIST       \
6936            $CONFIG_EXTRA      \
6937            $HAVE_LIST         \
6938            $ALL_COMPONENTS    \
6939
6940 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"
6941 enabled avresample && warn "Building with deprecated library libavresample"
6942
6943 case $target_os in
6944 haiku)
6945     disable memalign
6946     disable posix_memalign
6947     ;;
6948 *-dos|freedos|opendos)
6949     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6950         disable memalign
6951     fi
6952     ;;
6953 esac
6954
6955 flatten_extralibs(){
6956     nested_entries=
6957     list_name=$1
6958     eval list=\$${1}
6959     for entry in $list; do
6960         entry_copy=$entry
6961         resolve entry_copy
6962         flat_entries=
6963         for e in $entry_copy; do
6964             case $e in
6965                 *_extralibs) nested_entries="$nested_entries$e ";;
6966                           *) flat_entries="$flat_entries$e ";;
6967             esac
6968         done
6969         eval $entry="\$flat_entries"
6970     done
6971     append $list_name "$nested_entries"
6972
6973     resolve nested_entries
6974     if test -n "$(filter '*_extralibs' $nested_entries)"; then
6975         flatten_extralibs $list_name
6976     fi
6977 }
6978
6979 flatten_extralibs_wrapper(){
6980     list_name=$1
6981     flatten_extralibs $list_name
6982     unique $list_name
6983     resolve $list_name
6984     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
6985     eval printf \''%s'\' \""\$$list_name"\"
6986 }
6987
6988 for linkunit in $LIBRARY_LIST; do
6989     unset current_extralibs
6990     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
6991     for comp in ${components}; do
6992         enabled $comp || continue
6993         comp_extralibs="${comp}_extralibs"
6994         append current_extralibs $comp_extralibs
6995     done
6996     eval prepend ${linkunit}_extralibs $current_extralibs
6997 done
6998
6999 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7000     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
7001 done
7002
7003 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
7004
7005 for thread in $THREADS_LIST; do
7006     if enabled $thread; then
7007         test -n "$thread_type" &&
7008             die "ERROR: Only one thread type must be selected." ||
7009             thread_type="$thread"
7010     fi
7011 done
7012
7013 if disabled stdatomic; then
7014     if enabled atomics_gcc; then
7015         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
7016     elif enabled atomics_win32; then
7017         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
7018     elif enabled atomics_suncc; then
7019         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
7020     elif enabled pthreads; then
7021         add_compat atomics/pthread/stdatomic.o
7022         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
7023     else
7024         enabled threads && die "Threading is enabled, but no atomics are available"
7025         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
7026     fi
7027 fi
7028
7029 # Check if requested libraries were found.
7030 for lib in $AUTODETECT_LIBS; do
7031     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
7032 done
7033
7034 enabled zlib && add_cppflags -DZLIB_CONST
7035
7036 # conditional library dependencies, in any order
7037 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
7038 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
7039 enabled afir_filter         && prepend avfilter_deps "avcodec"
7040 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
7041 enabled aresample_filter    && prepend avfilter_deps "swresample"
7042 enabled atempo_filter       && prepend avfilter_deps "avcodec"
7043 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7044 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7045 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7046 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7047 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7048 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7049 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7050 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7051 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7052 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7053 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7054 enabled pan_filter          && prepend avfilter_deps "swresample"
7055 enabled pp_filter           && prepend avfilter_deps "postproc"
7056 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7057 enabled resample_filter && prepend avfilter_deps "avresample"
7058 enabled sab_filter          && prepend avfilter_deps "swscale"
7059 enabled scale_filter    && prepend avfilter_deps "swscale"
7060 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7061 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7062 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7063 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7064 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7065 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7066 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7067 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7068 enabled spp_filter          && prepend avfilter_deps "avcodec"
7069 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7070 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7071 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7072 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7073
7074 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7075
7076 #FIXME
7077 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7078     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7079
7080 enabled opus_decoder    && prepend avcodec_deps "swresample"
7081
7082 # reorder the items at var $1 to align with the items order at var $2 .
7083 # die if an item at $1 is not at $2 .
7084 reorder_by(){
7085     eval rb_in=\$$1
7086     eval rb_ordered=\$$2
7087
7088     for rb in $rb_in; do
7089         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7090     done
7091
7092     rb_out=
7093     for rb in $rb_ordered; do
7094         is_in $rb $rb_in && rb_out="$rb_out$rb "
7095     done
7096     eval $1=\$rb_out
7097 }
7098
7099 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7100 # within a set of N items, N expansions are enough to expose a cycle.
7101 expand_deps(){
7102     unique ${1}_deps  # required for the early break test.
7103     for dummy in $LIBRARY_LIST; do  # N iteratios
7104         eval deps=\$${1}_deps
7105         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7106         unique ${1}_deps
7107         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7108     done
7109
7110     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7111     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7112 }
7113
7114 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7115 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7116
7117 map 'expand_deps $v' $LIBRARY_LIST
7118
7119 if test "$quiet" != "yes"; then
7120
7121 echo "install prefix            $prefix"
7122 echo "source path               $source_path"
7123 echo "C compiler                $cc"
7124 echo "C library                 $libc_type"
7125 if test "$host_cc" != "$cc"; then
7126     echo "host C compiler           $host_cc"
7127     echo "host C library            $host_libc_type"
7128 fi
7129 echo "ARCH                      $arch ($cpu)"
7130 if test "$build_suffix" != ""; then
7131     echo "build suffix              $build_suffix"
7132 fi
7133 if test "$progs_suffix" != ""; then
7134     echo "progs suffix              $progs_suffix"
7135 fi
7136 if test "$extra_version" != ""; then
7137     echo "version string suffix     $extra_version"
7138 fi
7139 echo "big-endian                ${bigendian-no}"
7140 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7141 if enabled x86; then
7142     echo "standalone assembly       ${x86asm-no}"
7143     echo "x86 assembler             ${x86asmexe}"
7144     echo "MMX enabled               ${mmx-no}"
7145     echo "MMXEXT enabled            ${mmxext-no}"
7146     echo "3DNow! enabled            ${amd3dnow-no}"
7147     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7148     echo "SSE enabled               ${sse-no}"
7149     echo "SSSE3 enabled             ${ssse3-no}"
7150     echo "AESNI enabled             ${aesni-no}"
7151     echo "AVX enabled               ${avx-no}"
7152     echo "AVX2 enabled              ${avx2-no}"
7153     echo "AVX-512 enabled           ${avx512-no}"
7154     echo "XOP enabled               ${xop-no}"
7155     echo "FMA3 enabled              ${fma3-no}"
7156     echo "FMA4 enabled              ${fma4-no}"
7157     echo "i686 features enabled     ${i686-no}"
7158     echo "CMOV is fast              ${fast_cmov-no}"
7159     echo "EBX available             ${ebx_available-no}"
7160     echo "EBP available             ${ebp_available-no}"
7161 fi
7162 if enabled aarch64; then
7163     echo "NEON enabled              ${neon-no}"
7164     echo "VFP enabled               ${vfp-no}"
7165 fi
7166 if enabled arm; then
7167     echo "ARMv5TE enabled           ${armv5te-no}"
7168     echo "ARMv6 enabled             ${armv6-no}"
7169     echo "ARMv6T2 enabled           ${armv6t2-no}"
7170     echo "VFP enabled               ${vfp-no}"
7171     echo "NEON enabled              ${neon-no}"
7172     echo "THUMB enabled             ${thumb-no}"
7173 fi
7174 if enabled mips; then
7175     echo "MIPS FPU enabled          ${mipsfpu-no}"
7176     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7177     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7178     echo "MIPS MSA enabled          ${msa-no}"
7179     echo "MIPS MSA2 enabled         ${msa2-no}"
7180     echo "LOONGSON MMI enabled      ${mmi-no}"
7181 fi
7182 if enabled ppc; then
7183     echo "AltiVec enabled           ${altivec-no}"
7184     echo "VSX enabled               ${vsx-no}"
7185     echo "POWER8 enabled            ${power8-no}"
7186     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7187     echo "dcbzl available           ${dcbzl-no}"
7188 fi
7189 echo "debug symbols             ${debug-no}"
7190 echo "strip symbols             ${stripping-no}"
7191 echo "optimize for size         ${small-no}"
7192 echo "optimizations             ${optimizations-no}"
7193 echo "static                    ${static-no}"
7194 echo "shared                    ${shared-no}"
7195 echo "postprocessing support    ${postproc-no}"
7196 echo "network support           ${network-no}"
7197 echo "threading support         ${thread_type-no}"
7198 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7199 echo "texi2html enabled         ${texi2html-no}"
7200 echo "perl enabled              ${perl-no}"
7201 echo "pod2man enabled           ${pod2man-no}"
7202 echo "makeinfo enabled          ${makeinfo-no}"
7203 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7204 test -n "$random_seed" &&
7205     echo "random seed               ${random_seed}"
7206 echo
7207
7208 echo "External libraries:"
7209 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7210 echo
7211
7212 echo "External libraries providing hardware acceleration:"
7213 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7214 echo
7215
7216 echo "Libraries:"
7217 print_enabled '' $LIBRARY_LIST | print_in_columns
7218 echo
7219
7220 echo "Programs:"
7221 print_enabled '' $PROGRAM_LIST | print_in_columns
7222 echo
7223
7224 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7225     echo "Enabled ${type}s:"
7226     eval list=\$$(toupper $type)_LIST
7227     print_enabled '_*' $list | print_in_columns
7228     echo
7229 done
7230
7231 if test -n "$ignore_tests"; then
7232     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7233     echo "Ignored FATE tests:"
7234     echo $ignore_tests | print_in_columns
7235     echo
7236 fi
7237
7238 echo "License: $license"
7239
7240 fi # test "$quiet" != "yes"
7241
7242 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7243     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7244         if disabled $cfg; then
7245             varname=${cfg}_disable_reason
7246             eval "warn \"Disabled $cfg because \$$varname\""
7247         fi
7248     done
7249 fi
7250
7251 if test -n "$WARNINGS"; then
7252     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7253     enabled fatal_warnings && exit 1
7254 fi
7255
7256 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7257
7258 esc(){
7259     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7260 }
7261
7262 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7263
7264 enabled stripping || strip="echo skipping strip"
7265 enabled stripping || striptype=""
7266
7267 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7268
7269 cat > ffbuild/config.mak <<EOF
7270 # Automatically generated by configure - do not modify!
7271 ifndef FFMPEG_CONFIG_MAK
7272 FFMPEG_CONFIG_MAK=1
7273 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7274 prefix=$prefix
7275 LIBDIR=\$(DESTDIR)$libdir
7276 SHLIBDIR=\$(DESTDIR)$shlibdir
7277 INCDIR=\$(DESTDIR)$incdir
7278 BINDIR=\$(DESTDIR)$bindir
7279 DATADIR=\$(DESTDIR)$datadir
7280 DOCDIR=\$(DESTDIR)$docdir
7281 MANDIR=\$(DESTDIR)$mandir
7282 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7283 INSTALL_NAME_DIR=$install_name_dir
7284 SRC_PATH=$source_path
7285 SRC_LINK=$source_link
7286 ifndef MAIN_MAKEFILE
7287 SRC_PATH:=\$(SRC_PATH:.%=..%)
7288 endif
7289 CC_IDENT=$cc_ident
7290 ARCH=$arch
7291 INTRINSICS=$intrinsics
7292 EXTERN_PREFIX=$extern_prefix
7293 CC=$cc
7294 CXX=$cxx
7295 AS=$as
7296 OBJCC=$objcc
7297 LD=$ld
7298 DEPCC=$dep_cc
7299 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7300 DEPAS=$as
7301 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7302 X86ASM=$x86asmexe
7303 DEPX86ASM=$x86asmexe
7304 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7305 AR=$ar
7306 ARFLAGS=$arflags
7307 AR_O=$ar_o
7308 AR_CMD=$ar
7309 NM_CMD=$nm
7310 RANLIB=$ranlib
7311 STRIP=$strip
7312 STRIPTYPE=$striptype
7313 NVCC=$nvcc
7314 CP=cp -p
7315 LN_S=$ln_s
7316 CPPFLAGS=$CPPFLAGS
7317 CFLAGS=$CFLAGS
7318 CXXFLAGS=$CXXFLAGS
7319 OBJCFLAGS=$OBJCFLAGS
7320 ASFLAGS=$ASFLAGS
7321 NVCCFLAGS=$nvccflags
7322 AS_C=$AS_C
7323 AS_O=$AS_O
7324 OBJCC_C=$OBJCC_C
7325 OBJCC_E=$OBJCC_E
7326 OBJCC_O=$OBJCC_O
7327 CC_C=$CC_C
7328 CC_E=$CC_E
7329 CC_O=$CC_O
7330 CXX_C=$CXX_C
7331 CXX_O=$CXX_O
7332 NVCC_C=$NVCC_C
7333 NVCC_O=$NVCC_O
7334 LD_O=$LD_O
7335 X86ASM_O=$X86ASM_O
7336 LD_LIB=$LD_LIB
7337 LD_PATH=$LD_PATH
7338 DLLTOOL=$dlltool
7339 WINDRES=$windres
7340 DEPWINDRES=$dep_cc
7341 DOXYGEN=$doxygen
7342 LDFLAGS=$LDFLAGS
7343 LDEXEFLAGS=$LDEXEFLAGS
7344 LDSOFLAGS=$LDSOFLAGS
7345 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7346 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7347 X86ASMFLAGS=$X86ASMFLAGS
7348 BUILDSUF=$build_suffix
7349 PROGSSUF=$progs_suffix
7350 FULLNAME=$FULLNAME
7351 LIBPREF=$LIBPREF
7352 LIBSUF=$LIBSUF
7353 LIBNAME=$LIBNAME
7354 SLIBPREF=$SLIBPREF
7355 SLIBSUF=$SLIBSUF
7356 EXESUF=$EXESUF
7357 EXTRA_VERSION=$extra_version
7358 CCDEP=$CCDEP
7359 CXXDEP=$CXXDEP
7360 CCDEP_FLAGS=$CCDEP_FLAGS
7361 ASDEP=$ASDEP
7362 ASDEP_FLAGS=$ASDEP_FLAGS
7363 X86ASMDEP=$X86ASMDEP
7364 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7365 CC_DEPFLAGS=$CC_DEPFLAGS
7366 AS_DEPFLAGS=$AS_DEPFLAGS
7367 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7368 HOSTCC=$host_cc
7369 HOSTLD=$host_ld
7370 HOSTCFLAGS=$host_cflags
7371 HOSTCPPFLAGS=$host_cppflags
7372 HOSTEXESUF=$HOSTEXESUF
7373 HOSTLDFLAGS=$host_ldflags
7374 HOSTEXTRALIBS=$host_extralibs
7375 DEPHOSTCC=$host_cc
7376 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7377 HOSTCCDEP=$HOSTCCDEP
7378 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7379 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7380 HOSTCC_C=$HOSTCC_C
7381 HOSTCC_O=$HOSTCC_O
7382 HOSTLD_O=$HOSTLD_O
7383 TARGET_EXEC=$target_exec $target_exec_args
7384 TARGET_PATH=$target_path
7385 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7386 CFLAGS-ffplay=${sdl2_cflags}
7387 CFLAGS_HEADERS=$CFLAGS_HEADERS
7388 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7389 EXTRALIBS=$extralibs
7390 COMPAT_OBJS=$compat_objs
7391 INSTALL=$install
7392 LIBTARGET=${LIBTARGET}
7393 SLIBNAME=${SLIBNAME}
7394 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7395 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7396 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7397 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7398 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7399 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7400 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7401 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7402 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7403 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7404 NOREDZONE_FLAGS=$noredzone_flags
7405 LIBFUZZER_PATH=$libfuzzer_path
7406 IGNORE_TESTS=$ignore_tests
7407 EOF
7408
7409 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7410
7411 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7412     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7413 done
7414
7415 cat > $TMPH <<EOF
7416 /* Automatically generated by configure - do not modify! */
7417 #ifndef FFMPEG_CONFIG_H
7418 #define FFMPEG_CONFIG_H
7419 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7420 #define FFMPEG_LICENSE "$(c_escape $license)"
7421 #define CONFIG_THIS_YEAR 2019
7422 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7423 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7424 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7425 #define av_restrict $restrict_keyword
7426 #define EXTERN_PREFIX "${extern_prefix}"
7427 #define EXTERN_ASM ${extern_prefix}
7428 #define BUILDSUF "$build_suffix"
7429 #define SLIBSUF "$SLIBSUF"
7430 #define HAVE_MMX2 HAVE_MMXEXT
7431 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7432 EOF
7433
7434 test -n "$assert_level" &&
7435     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7436
7437 test -n "$malloc_prefix" &&
7438     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7439
7440 if enabled x86asm; then
7441     append config_files $TMPASM
7442     cat > $TMPASM <<EOF
7443 ; Automatically generated by configure - do not modify!
7444 EOF
7445 fi
7446
7447 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7448
7449
7450 mkdir -p doc
7451 mkdir -p tests
7452 mkdir -p tests/api
7453 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7454
7455 print_config ARCH_   "$config_files" $ARCH_LIST
7456 print_config HAVE_   "$config_files" $HAVE_LIST
7457 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7458                                      $CONFIG_EXTRA      \
7459                                      $ALL_COMPONENTS    \
7460
7461 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7462 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7463
7464 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7465 cp_if_changed $TMPH config.h
7466 touch ffbuild/.config
7467
7468 enabled x86asm && cp_if_changed $TMPASM config.asm
7469
7470 cat > $TMPH <<EOF
7471 /* Generated by ffmpeg configure */
7472 #ifndef AVUTIL_AVCONFIG_H
7473 #define AVUTIL_AVCONFIG_H
7474 EOF
7475
7476 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7477
7478 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7479
7480 cp_if_changed $TMPH libavutil/avconfig.h
7481
7482 # full_filter_name_foo=vf_foo
7483 # full_filter_name_bar=asrc_bar
7484 # ...
7485 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7486
7487 # generate the lists of enabled components
7488 print_enabled_components(){
7489     file=$1
7490     struct_name=$2
7491     name=$3
7492     shift 3
7493     echo "static const $struct_name * const $name[] = {" > $TMPH
7494     for c in $*; do
7495         if enabled $c; then
7496             case $name in
7497                 filter_list)
7498                     eval c=\$full_filter_name_${c%_filter}
7499                 ;;
7500                 indev_list)
7501                     c=${c%_indev}_demuxer
7502                 ;;
7503                 outdev_list)
7504                     c=${c%_outdev}_muxer
7505                 ;;
7506             esac
7507             printf "    &ff_%s,\n" $c >> $TMPH
7508         fi
7509     done
7510     if [ "$name" = "filter_list" ]; then
7511         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7512             printf "    &ff_%s,\n" $c >> $TMPH
7513         done
7514     fi
7515     echo "    NULL };" >> $TMPH
7516     cp_if_changed $TMPH $file
7517 }
7518
7519 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7520 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7521 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7522 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7523 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7524 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7525 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7526 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7527 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7528
7529 # Settings for pkg-config files
7530
7531 cat > $TMPH <<EOF
7532 # Automatically generated by configure - do not modify!
7533 shared=$shared
7534 build_suffix=$build_suffix
7535 prefix=$prefix
7536 libdir=$libdir
7537 incdir=$incdir
7538 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7539 source_path=${source_path}
7540 LIBPREF=${LIBPREF}
7541 LIBSUF=${LIBSUF}
7542 extralibs_avutil="$avutil_extralibs"
7543 extralibs_avcodec="$avcodec_extralibs"
7544 extralibs_avformat="$avformat_extralibs"
7545 extralibs_avdevice="$avdevice_extralibs"
7546 extralibs_avfilter="$avfilter_extralibs"
7547 extralibs_avresample="$avresample_extralibs"
7548 extralibs_postproc="$postproc_extralibs"
7549 extralibs_swscale="$swscale_extralibs"
7550 extralibs_swresample="$swresample_extralibs"
7551 EOF
7552
7553 for lib in $LIBRARY_LIST; do
7554     lib_deps="$(eval echo \$${lib}_deps)"
7555     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7556 done
7557
7558 cp_if_changed $TMPH ffbuild/config.sh