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 indeo3_decoder_select="hpeldsp"
2727 indeo4_decoder_select="ividsp"
2728 indeo5_decoder_select="ividsp"
2729 interplay_video_decoder_select="hpeldsp"
2730 jpegls_decoder_select="mjpeg_decoder"
2731 jv_decoder_select="blockdsp"
2732 lagarith_decoder_select="llviddsp"
2733 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2734 lscr_decoder_deps="zlib"
2735 magicyuv_decoder_select="llviddsp"
2736 magicyuv_encoder_select="llvidencdsp"
2737 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2738 metasound_decoder_select="lsp mdct sinewin"
2739 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2740 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2741 mjpeg_encoder_select="jpegtables mpegvideoenc"
2742 mjpegb_decoder_select="mjpeg_decoder"
2743 mlp_decoder_select="mlp_parser"
2744 mlp_encoder_select="lpc audio_frame_queue"
2745 motionpixels_decoder_select="bswapdsp"
2746 mp1_decoder_select="mpegaudio"
2747 mp1float_decoder_select="mpegaudio"
2748 mp2_decoder_select="mpegaudio"
2749 mp2float_decoder_select="mpegaudio"
2750 mp3_decoder_select="mpegaudio"
2751 mp3adu_decoder_select="mpegaudio"
2752 mp3adufloat_decoder_select="mpegaudio"
2753 mp3float_decoder_select="mpegaudio"
2754 mp3on4_decoder_select="mpegaudio"
2755 mp3on4float_decoder_select="mpegaudio"
2756 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2757 mpc8_decoder_select="mpegaudiodsp"
2758 mpegvideo_decoder_select="mpegvideo"
2759 mpeg1video_decoder_select="mpegvideo"
2760 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2761 mpeg2video_decoder_select="mpegvideo"
2762 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2763 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2764 mpeg4_encoder_select="h263_encoder"
2765 msa1_decoder_select="mss34dsp"
2766 mscc_decoder_deps="zlib"
2767 msmpeg4v1_decoder_select="h263_decoder"
2768 msmpeg4v2_decoder_select="h263_decoder"
2769 msmpeg4v2_encoder_select="h263_encoder"
2770 msmpeg4v3_decoder_select="h263_decoder"
2771 msmpeg4v3_encoder_select="h263_encoder"
2772 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2773 mts2_decoder_select="mss34dsp"
2774 mwsc_decoder_deps="zlib"
2775 mxpeg_decoder_select="mjpeg_decoder"
2776 nellymoser_decoder_select="mdct sinewin"
2777 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2778 nuv_decoder_select="idctdsp lzo"
2779 on2avc_decoder_select="mdct"
2780 opus_decoder_deps="swresample"
2781 opus_decoder_select="mdct15"
2782 opus_encoder_select="audio_frame_queue mdct15"
2783 png_decoder_deps="zlib"
2784 png_encoder_deps="zlib"
2785 png_encoder_select="llvidencdsp"
2786 prores_decoder_select="blockdsp idctdsp"
2787 prores_encoder_select="fdctdsp"
2788 qcelp_decoder_select="lsp"
2789 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2790 ra_144_decoder_select="audiodsp"
2791 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2792 ralf_decoder_select="golomb"
2793 rasc_decoder_deps="zlib"
2794 rawvideo_decoder_select="bswapdsp"
2795 rscc_decoder_deps="zlib"
2796 rtjpeg_decoder_select="me_cmp"
2797 rv10_decoder_select="h263_decoder"
2798 rv10_encoder_select="h263_encoder"
2799 rv20_decoder_select="h263_decoder"
2800 rv20_encoder_select="h263_encoder"
2801 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2802 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2803 screenpresso_decoder_deps="zlib"
2804 shorten_decoder_select="bswapdsp"
2805 sipr_decoder_select="lsp"
2806 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2807 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2808 sonic_decoder_select="golomb rangecoder"
2809 sonic_encoder_select="golomb rangecoder"
2810 sonic_ls_encoder_select="golomb rangecoder"
2811 sp5x_decoder_select="mjpeg_decoder"
2812 speedhq_decoder_select="mpegvideo"
2813 srgc_decoder_deps="zlib"
2814 svq1_decoder_select="hpeldsp"
2815 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2816 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2817 svq3_decoder_suggest="zlib"
2818 tak_decoder_select="audiodsp"
2819 tdsc_decoder_deps="zlib"
2820 tdsc_decoder_select="mjpeg_decoder"
2821 theora_decoder_select="vp3_decoder"
2822 thp_decoder_select="mjpeg_decoder"
2823 tiff_decoder_suggest="zlib lzma"
2824 tiff_encoder_suggest="zlib"
2825 truehd_decoder_select="mlp_parser"
2826 truehd_encoder_select="lpc audio_frame_queue"
2827 truemotion2_decoder_select="bswapdsp"
2828 truespeech_decoder_select="bswapdsp"
2829 tscc_decoder_deps="zlib"
2830 twinvq_decoder_select="mdct lsp sinewin"
2831 txd_decoder_select="texturedsp"
2832 utvideo_decoder_select="bswapdsp llviddsp"
2833 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2834 vble_decoder_select="llviddsp"
2835 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2836 vc1image_decoder_select="vc1_decoder"
2837 vorbis_decoder_select="mdct"
2838 vorbis_encoder_select="audio_frame_queue mdct"
2839 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2840 vp4_decoder_select="vp3_decoder"
2841 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2842 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2843 vp6a_decoder_select="vp6_decoder"
2844 vp6f_decoder_select="vp6_decoder"
2845 vp7_decoder_select="h264pred videodsp vp8dsp"
2846 vp8_decoder_select="h264pred videodsp vp8dsp"
2847 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2848 wcmv_decoder_deps="zlib"
2849 webp_decoder_select="vp8_decoder exif"
2850 wmalossless_decoder_select="llauddsp"
2851 wmapro_decoder_select="mdct sinewin wma_freqs"
2852 wmav1_decoder_select="mdct sinewin wma_freqs"
2853 wmav1_encoder_select="mdct sinewin wma_freqs"
2854 wmav2_decoder_select="mdct sinewin wma_freqs"
2855 wmav2_encoder_select="mdct sinewin wma_freqs"
2856 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2857 wmv1_decoder_select="h263_decoder"
2858 wmv1_encoder_select="h263_encoder"
2859 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2860 wmv2_encoder_select="h263_encoder wmv2dsp"
2861 wmv3_decoder_select="vc1_decoder"
2862 wmv3image_decoder_select="wmv3_decoder"
2863 xma1_decoder_select="wmapro_decoder"
2864 xma2_decoder_select="wmapro_decoder"
2865 zerocodec_decoder_deps="zlib"
2866 zlib_decoder_deps="zlib"
2867 zlib_encoder_deps="zlib"
2868 zmbv_decoder_deps="zlib"
2869 zmbv_encoder_deps="zlib"
2870
2871 # hardware accelerators
2872 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2873 cuda_deps="ffnvcodec"
2874 cuvid_deps="ffnvcodec"
2875 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2876 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2877 ffnvcodec_deps_any="libdl LoadLibrary"
2878 nvdec_deps="ffnvcodec"
2879 vaapi_x11_deps="xlib"
2880 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2881 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2882 xvmc_deps="X11_extensions_XvMClib_h"
2883
2884 h263_vaapi_hwaccel_deps="vaapi"
2885 h263_vaapi_hwaccel_select="h263_decoder"
2886 h263_videotoolbox_hwaccel_deps="videotoolbox"
2887 h263_videotoolbox_hwaccel_select="h263_decoder"
2888 h264_d3d11va_hwaccel_deps="d3d11va"
2889 h264_d3d11va_hwaccel_select="h264_decoder"
2890 h264_d3d11va2_hwaccel_deps="d3d11va"
2891 h264_d3d11va2_hwaccel_select="h264_decoder"
2892 h264_dxva2_hwaccel_deps="dxva2"
2893 h264_dxva2_hwaccel_select="h264_decoder"
2894 h264_nvdec_hwaccel_deps="nvdec"
2895 h264_nvdec_hwaccel_select="h264_decoder"
2896 h264_vaapi_hwaccel_deps="vaapi"
2897 h264_vaapi_hwaccel_select="h264_decoder"
2898 h264_vdpau_hwaccel_deps="vdpau"
2899 h264_vdpau_hwaccel_select="h264_decoder"
2900 h264_videotoolbox_hwaccel_deps="videotoolbox"
2901 h264_videotoolbox_hwaccel_select="h264_decoder"
2902 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2903 hevc_d3d11va_hwaccel_select="hevc_decoder"
2904 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2905 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2906 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2907 hevc_dxva2_hwaccel_select="hevc_decoder"
2908 hevc_nvdec_hwaccel_deps="nvdec"
2909 hevc_nvdec_hwaccel_select="hevc_decoder"
2910 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2911 hevc_vaapi_hwaccel_select="hevc_decoder"
2912 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2913 hevc_vdpau_hwaccel_select="hevc_decoder"
2914 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2915 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2916 mjpeg_nvdec_hwaccel_deps="nvdec"
2917 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2918 mjpeg_vaapi_hwaccel_deps="vaapi"
2919 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2920 mpeg_xvmc_hwaccel_deps="xvmc"
2921 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2922 mpeg1_nvdec_hwaccel_deps="nvdec"
2923 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2924 mpeg1_vdpau_hwaccel_deps="vdpau"
2925 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2926 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2927 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2928 mpeg1_xvmc_hwaccel_deps="xvmc"
2929 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2930 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2931 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2932 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2933 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2934 mpeg2_dxva2_hwaccel_deps="dxva2"
2935 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2936 mpeg2_nvdec_hwaccel_deps="nvdec"
2937 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2938 mpeg2_vaapi_hwaccel_deps="vaapi"
2939 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2940 mpeg2_vdpau_hwaccel_deps="vdpau"
2941 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2942 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2943 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2944 mpeg2_xvmc_hwaccel_deps="xvmc"
2945 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2946 mpeg4_nvdec_hwaccel_deps="nvdec"
2947 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2948 mpeg4_vaapi_hwaccel_deps="vaapi"
2949 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2950 mpeg4_vdpau_hwaccel_deps="vdpau"
2951 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2952 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2953 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2954 vc1_d3d11va_hwaccel_deps="d3d11va"
2955 vc1_d3d11va_hwaccel_select="vc1_decoder"
2956 vc1_d3d11va2_hwaccel_deps="d3d11va"
2957 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2958 vc1_dxva2_hwaccel_deps="dxva2"
2959 vc1_dxva2_hwaccel_select="vc1_decoder"
2960 vc1_nvdec_hwaccel_deps="nvdec"
2961 vc1_nvdec_hwaccel_select="vc1_decoder"
2962 vc1_vaapi_hwaccel_deps="vaapi"
2963 vc1_vaapi_hwaccel_select="vc1_decoder"
2964 vc1_vdpau_hwaccel_deps="vdpau"
2965 vc1_vdpau_hwaccel_select="vc1_decoder"
2966 vp8_nvdec_hwaccel_deps="nvdec"
2967 vp8_nvdec_hwaccel_select="vp8_decoder"
2968 vp8_vaapi_hwaccel_deps="vaapi"
2969 vp8_vaapi_hwaccel_select="vp8_decoder"
2970 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2971 vp9_d3d11va_hwaccel_select="vp9_decoder"
2972 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2973 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2974 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2975 vp9_dxva2_hwaccel_select="vp9_decoder"
2976 vp9_nvdec_hwaccel_deps="nvdec"
2977 vp9_nvdec_hwaccel_select="vp9_decoder"
2978 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2979 vp9_vaapi_hwaccel_select="vp9_decoder"
2980 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2981 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2982 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2983 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2984 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2985 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2986
2987 # hardware-accelerated codecs
2988 omx_deps="libdl pthreads"
2989 omx_rpi_select="omx"
2990 qsv_deps="libmfx"
2991 qsvdec_select="qsv"
2992 qsvenc_select="qsv"
2993 qsvvpp_select="qsv"
2994 vaapi_encode_deps="vaapi"
2995 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2996
2997 hwupload_cuda_filter_deps="ffnvcodec"
2998 scale_npp_filter_deps="ffnvcodec libnpp"
2999 scale_cuda_filter_deps="ffnvcodec"
3000 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3001 thumbnail_cuda_filter_deps="ffnvcodec"
3002 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3003 transpose_npp_filter_deps="ffnvcodec libnpp"
3004
3005 amf_deps_any="libdl LoadLibrary"
3006 nvenc_deps="ffnvcodec"
3007 nvenc_deps_any="libdl LoadLibrary"
3008 nvenc_encoder_deps="nvenc"
3009
3010 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3011 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3012 h264_amf_encoder_deps="amf"
3013 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3014 h264_cuvid_decoder_deps="cuvid"
3015 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3016 h264_mediacodec_decoder_deps="mediacodec"
3017 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3018 h264_mmal_decoder_deps="mmal"
3019 h264_nvenc_encoder_deps="nvenc"
3020 h264_omx_encoder_deps="omx"
3021 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3022 h264_qsv_encoder_select="qsvenc"
3023 h264_rkmpp_decoder_deps="rkmpp"
3024 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3025 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3026 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3027 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3028 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3029 hevc_amf_encoder_deps="amf"
3030 hevc_cuvid_decoder_deps="cuvid"
3031 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3032 hevc_mediacodec_decoder_deps="mediacodec"
3033 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3034 hevc_nvenc_encoder_deps="nvenc"
3035 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3036 hevc_qsv_encoder_select="hevcparse qsvenc"
3037 hevc_rkmpp_decoder_deps="rkmpp"
3038 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3039 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3040 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3041 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3042 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3043 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3044 mjpeg_cuvid_decoder_deps="cuvid"
3045 mjpeg_qsv_decoder_select="qsvdec"
3046 mjpeg_qsv_encoder_deps="libmfx"
3047 mjpeg_qsv_encoder_select="qsvenc"
3048 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3049 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3050 mpeg1_cuvid_decoder_deps="cuvid"
3051 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3052 mpeg2_crystalhd_decoder_select="crystalhd"
3053 mpeg2_cuvid_decoder_deps="cuvid"
3054 mpeg2_mmal_decoder_deps="mmal"
3055 mpeg2_mediacodec_decoder_deps="mediacodec"
3056 mpeg2_qsv_decoder_select="qsvdec"
3057 mpeg2_qsv_encoder_select="qsvenc"
3058 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3059 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3060 mpeg4_crystalhd_decoder_select="crystalhd"
3061 mpeg4_cuvid_decoder_deps="cuvid"
3062 mpeg4_mediacodec_decoder_deps="mediacodec"
3063 mpeg4_mmal_decoder_deps="mmal"
3064 mpeg4_omx_encoder_deps="omx"
3065 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3066 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3067 msmpeg4_crystalhd_decoder_select="crystalhd"
3068 nvenc_h264_encoder_select="h264_nvenc_encoder"
3069 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3070 vc1_crystalhd_decoder_select="crystalhd"
3071 vc1_cuvid_decoder_deps="cuvid"
3072 vc1_mmal_decoder_deps="mmal"
3073 vc1_qsv_decoder_select="qsvdec"
3074 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3075 vp8_cuvid_decoder_deps="cuvid"
3076 vp8_mediacodec_decoder_deps="mediacodec"
3077 vp8_qsv_decoder_select="qsvdec"
3078 vp8_rkmpp_decoder_deps="rkmpp"
3079 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3080 vp8_vaapi_encoder_select="vaapi_encode"
3081 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3082 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3083 vp9_cuvid_decoder_deps="cuvid"
3084 vp9_mediacodec_decoder_deps="mediacodec"
3085 vp9_qsv_decoder_select="qsvdec"
3086 vp9_rkmpp_decoder_deps="rkmpp"
3087 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3088 vp9_vaapi_encoder_select="vaapi_encode"
3089 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3090 wmv3_crystalhd_decoder_select="crystalhd"
3091
3092 # parsers
3093 aac_parser_select="adts_header"
3094 av1_parser_select="cbs_av1"
3095 h264_parser_select="golomb h264dsp h264parse"
3096 hevc_parser_select="hevcparse"
3097 mpegaudio_parser_select="mpegaudioheader"
3098 mpegvideo_parser_select="mpegvideo"
3099 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3100 vc1_parser_select="vc1dsp"
3101
3102 # bitstream_filters
3103 aac_adtstoasc_bsf_select="adts_header"
3104 av1_frame_split_bsf_select="cbs_av1"
3105 av1_metadata_bsf_select="cbs_av1"
3106 eac3_core_bsf_select="ac3_parser"
3107 filter_units_bsf_select="cbs"
3108 h264_metadata_bsf_deps="const_nan"
3109 h264_metadata_bsf_select="cbs_h264"
3110 h264_redundant_pps_bsf_select="cbs_h264"
3111 hevc_metadata_bsf_select="cbs_h265"
3112 mjpeg2jpeg_bsf_select="jpegtables"
3113 mpeg2_metadata_bsf_select="cbs_mpeg2"
3114 trace_headers_bsf_select="cbs"
3115 vp9_metadata_bsf_select="cbs_vp9"
3116
3117 # external libraries
3118 aac_at_decoder_deps="audiotoolbox"
3119 aac_at_decoder_select="aac_adtstoasc_bsf"
3120 ac3_at_decoder_deps="audiotoolbox"
3121 ac3_at_decoder_select="ac3_parser"
3122 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3123 alac_at_decoder_deps="audiotoolbox"
3124 amr_nb_at_decoder_deps="audiotoolbox"
3125 avisynth_deps_any="libdl LoadLibrary"
3126 avisynth_demuxer_deps="avisynth"
3127 avisynth_demuxer_select="riffdec"
3128 eac3_at_decoder_deps="audiotoolbox"
3129 eac3_at_decoder_select="ac3_parser"
3130 gsm_ms_at_decoder_deps="audiotoolbox"
3131 ilbc_at_decoder_deps="audiotoolbox"
3132 mp1_at_decoder_deps="audiotoolbox"
3133 mp2_at_decoder_deps="audiotoolbox"
3134 mp3_at_decoder_deps="audiotoolbox"
3135 mp1_at_decoder_select="mpegaudioheader"
3136 mp2_at_decoder_select="mpegaudioheader"
3137 mp3_at_decoder_select="mpegaudioheader"
3138 pcm_alaw_at_decoder_deps="audiotoolbox"
3139 pcm_mulaw_at_decoder_deps="audiotoolbox"
3140 qdmc_at_decoder_deps="audiotoolbox"
3141 qdm2_at_decoder_deps="audiotoolbox"
3142 aac_at_encoder_deps="audiotoolbox"
3143 aac_at_encoder_select="audio_frame_queue"
3144 alac_at_encoder_deps="audiotoolbox"
3145 alac_at_encoder_select="audio_frame_queue"
3146 ilbc_at_encoder_deps="audiotoolbox"
3147 ilbc_at_encoder_select="audio_frame_queue"
3148 pcm_alaw_at_encoder_deps="audiotoolbox"
3149 pcm_alaw_at_encoder_select="audio_frame_queue"
3150 pcm_mulaw_at_encoder_deps="audiotoolbox"
3151 pcm_mulaw_at_encoder_select="audio_frame_queue"
3152 chromaprint_muxer_deps="chromaprint"
3153 h264_videotoolbox_encoder_deps="pthreads"
3154 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3155 hevc_videotoolbox_encoder_deps="pthreads"
3156 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3157 libaom_av1_decoder_deps="libaom"
3158 libaom_av1_encoder_deps="libaom"
3159 libaom_av1_encoder_select="extract_extradata_bsf"
3160 libaribb24_decoder_deps="libaribb24"
3161 libcelt_decoder_deps="libcelt"
3162 libcodec2_decoder_deps="libcodec2"
3163 libcodec2_encoder_deps="libcodec2"
3164 libdav1d_decoder_deps="libdav1d"
3165 libdavs2_decoder_deps="libdavs2"
3166 libfdk_aac_decoder_deps="libfdk_aac"
3167 libfdk_aac_encoder_deps="libfdk_aac"
3168 libfdk_aac_encoder_select="audio_frame_queue"
3169 libgme_demuxer_deps="libgme"
3170 libgsm_decoder_deps="libgsm"
3171 libgsm_encoder_deps="libgsm"
3172 libgsm_ms_decoder_deps="libgsm"
3173 libgsm_ms_encoder_deps="libgsm"
3174 libilbc_decoder_deps="libilbc"
3175 libilbc_encoder_deps="libilbc"
3176 libkvazaar_encoder_deps="libkvazaar"
3177 libmodplug_demuxer_deps="libmodplug"
3178 libmp3lame_encoder_deps="libmp3lame"
3179 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3180 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3181 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3182 libopencore_amrnb_encoder_select="audio_frame_queue"
3183 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3184 libopenh264_decoder_deps="libopenh264"
3185 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3186 libopenh264_encoder_deps="libopenh264"
3187 libopenjpeg_decoder_deps="libopenjpeg"
3188 libopenjpeg_encoder_deps="libopenjpeg"
3189 libopenmpt_demuxer_deps="libopenmpt"
3190 libopus_decoder_deps="libopus"
3191 libopus_encoder_deps="libopus"
3192 libopus_encoder_select="audio_frame_queue"
3193 librsvg_decoder_deps="librsvg"
3194 libshine_encoder_deps="libshine"
3195 libshine_encoder_select="audio_frame_queue"
3196 libspeex_decoder_deps="libspeex"
3197 libspeex_encoder_deps="libspeex"
3198 libspeex_encoder_select="audio_frame_queue"
3199 libtheora_encoder_deps="libtheora"
3200 libtwolame_encoder_deps="libtwolame"
3201 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3202 libvorbis_decoder_deps="libvorbis"
3203 libvorbis_encoder_deps="libvorbis libvorbisenc"
3204 libvorbis_encoder_select="audio_frame_queue"
3205 libvpx_vp8_decoder_deps="libvpx"
3206 libvpx_vp8_encoder_deps="libvpx"
3207 libvpx_vp9_decoder_deps="libvpx"
3208 libvpx_vp9_encoder_deps="libvpx"
3209 libwavpack_encoder_deps="libwavpack"
3210 libwavpack_encoder_select="audio_frame_queue"
3211 libwebp_encoder_deps="libwebp"
3212 libwebp_anim_encoder_deps="libwebp"
3213 libx262_encoder_deps="libx262"
3214 libx264_encoder_deps="libx264"
3215 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3216 libx264rgb_encoder_select="libx264_encoder"
3217 libx265_encoder_deps="libx265"
3218 libxavs_encoder_deps="libxavs"
3219 libxavs2_encoder_deps="libxavs2"
3220 libxvid_encoder_deps="libxvid"
3221 libzvbi_teletext_decoder_deps="libzvbi"
3222 vapoursynth_demuxer_deps="vapoursynth"
3223 videotoolbox_suggest="coreservices"
3224 videotoolbox_deps="corefoundation coremedia corevideo"
3225 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3226
3227 # demuxers / muxers
3228 ac3_demuxer_select="ac3_parser"
3229 aiff_muxer_select="iso_media"
3230 asf_demuxer_select="riffdec"
3231 asf_o_demuxer_select="riffdec"
3232 asf_muxer_select="riffenc"
3233 asf_stream_muxer_select="asf_muxer"
3234 avi_demuxer_select="iso_media riffdec exif"
3235 avi_muxer_select="riffenc"
3236 caf_demuxer_select="iso_media riffdec"
3237 caf_muxer_select="iso_media"
3238 dash_muxer_select="mp4_muxer"
3239 dash_demuxer_deps="libxml2"
3240 dirac_demuxer_select="dirac_parser"
3241 dts_demuxer_select="dca_parser"
3242 dtshd_demuxer_select="dca_parser"
3243 dv_demuxer_select="dvprofile"
3244 dv_muxer_select="dvprofile"
3245 dxa_demuxer_select="riffdec"
3246 eac3_demuxer_select="ac3_parser"
3247 f4v_muxer_select="mov_muxer"
3248 fifo_muxer_deps="threads"
3249 flac_demuxer_select="flac_parser"
3250 hds_muxer_select="flv_muxer"
3251 hls_muxer_select="mpegts_muxer"
3252 hls_muxer_suggest="gcrypt openssl"
3253 image2_alias_pix_demuxer_select="image2_demuxer"
3254 image2_brender_pix_demuxer_select="image2_demuxer"
3255 ipod_muxer_select="mov_muxer"
3256 ismv_muxer_select="mov_muxer"
3257 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3258 matroska_audio_muxer_select="matroska_muxer"
3259 matroska_demuxer_select="iso_media riffdec"
3260 matroska_demuxer_suggest="bzlib lzo zlib"
3261 matroska_muxer_select="iso_media riffenc"
3262 mmf_muxer_select="riffenc"
3263 mov_demuxer_select="iso_media riffdec"
3264 mov_demuxer_suggest="zlib"
3265 mov_muxer_select="iso_media riffenc rtpenc_chain"
3266 mp3_demuxer_select="mpegaudio_parser"
3267 mp3_muxer_select="mpegaudioheader"
3268 mp4_muxer_select="mov_muxer"
3269 mpegts_demuxer_select="iso_media"
3270 mpegts_muxer_select="adts_muxer latm_muxer"
3271 mpegtsraw_demuxer_select="mpegts_demuxer"
3272 mxf_d10_muxer_select="mxf_muxer"
3273 mxf_opatom_muxer_select="mxf_muxer"
3274 nut_muxer_select="riffenc"
3275 nuv_demuxer_select="riffdec"
3276 oga_muxer_select="ogg_muxer"
3277 ogg_demuxer_select="dirac_parse"
3278 ogv_muxer_select="ogg_muxer"
3279 opus_muxer_select="ogg_muxer"
3280 psp_muxer_select="mov_muxer"
3281 rtp_demuxer_select="sdp_demuxer"
3282 rtp_muxer_select="golomb"
3283 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3284 rtsp_demuxer_select="http_protocol rtpdec"
3285 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3286 sap_demuxer_select="sdp_demuxer"
3287 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3288 sdp_demuxer_select="rtpdec"
3289 smoothstreaming_muxer_select="ismv_muxer"
3290 spdif_demuxer_select="adts_header"
3291 spdif_muxer_select="adts_header"
3292 spx_muxer_select="ogg_muxer"
3293 swf_demuxer_suggest="zlib"
3294 tak_demuxer_select="tak_parser"
3295 tg2_muxer_select="mov_muxer"
3296 tgp_muxer_select="mov_muxer"
3297 vobsub_demuxer_select="mpegps_demuxer"
3298 w64_demuxer_select="wav_demuxer"
3299 w64_muxer_select="wav_muxer"
3300 wav_demuxer_select="riffdec"
3301 wav_muxer_select="riffenc"
3302 webm_muxer_select="iso_media riffenc"
3303 webm_dash_manifest_demuxer_select="matroska_demuxer"
3304 wtv_demuxer_select="mpegts_demuxer riffdec"
3305 wtv_muxer_select="mpegts_muxer riffenc"
3306 xmv_demuxer_select="riffdec"
3307 xwma_demuxer_select="riffdec"
3308
3309 # indevs / outdevs
3310 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3311 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3312 alsa_indev_deps="alsa"
3313 alsa_outdev_deps="alsa"
3314 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3315 avfoundation_indev_suggest="coregraphics applicationservices"
3316 avfoundation_indev_extralibs="-framework Foundation"
3317 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3318 caca_outdev_deps="libcaca"
3319 decklink_deps_any="libdl LoadLibrary"
3320 decklink_indev_deps="decklink threads"
3321 decklink_indev_extralibs="-lstdc++"
3322 decklink_outdev_deps="decklink threads"
3323 decklink_outdev_suggest="libklvanc"
3324 decklink_outdev_extralibs="-lstdc++"
3325 dshow_indev_deps="IBaseFilter"
3326 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3327 fbdev_indev_deps="linux_fb_h"
3328 fbdev_outdev_deps="linux_fb_h"
3329 gdigrab_indev_deps="CreateDIBSection"
3330 gdigrab_indev_extralibs="-lgdi32"
3331 gdigrab_indev_select="bmp_decoder"
3332 iec61883_indev_deps="libiec61883"
3333 jack_indev_deps="libjack"
3334 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3335 kmsgrab_indev_deps="libdrm"
3336 lavfi_indev_deps="avfilter"
3337 libcdio_indev_deps="libcdio"
3338 libdc1394_indev_deps="libdc1394"
3339 openal_indev_deps="openal"
3340 opengl_outdev_deps="opengl"
3341 opengl_outdev_suggest="sdl2"
3342 oss_indev_deps_any="sys_soundcard_h"
3343 oss_outdev_deps_any="sys_soundcard_h"
3344 pulse_indev_deps="libpulse"
3345 pulse_outdev_deps="libpulse"
3346 sdl2_outdev_deps="sdl2"
3347 sndio_indev_deps="sndio"
3348 sndio_outdev_deps="sndio"
3349 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3350 v4l2_indev_suggest="libv4l2"
3351 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3352 v4l2_outdev_suggest="libv4l2"
3353 vfwcap_indev_deps="vfw32 vfwcap_defines"
3354 xcbgrab_indev_deps="libxcb"
3355 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3356 xv_outdev_deps="xlib"
3357
3358 # protocols
3359 async_protocol_deps="threads"
3360 bluray_protocol_deps="libbluray"
3361 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3362 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3363 ffrtmpcrypt_protocol_select="tcp_protocol"
3364 ffrtmphttp_protocol_conflict="librtmp_protocol"
3365 ffrtmphttp_protocol_select="http_protocol"
3366 ftp_protocol_select="tcp_protocol"
3367 gopher_protocol_select="network"
3368 http_protocol_select="tcp_protocol"
3369 http_protocol_suggest="zlib"
3370 httpproxy_protocol_select="tcp_protocol"
3371 httpproxy_protocol_suggest="zlib"
3372 https_protocol_select="tls_protocol"
3373 https_protocol_suggest="zlib"
3374 icecast_protocol_select="http_protocol"
3375 mmsh_protocol_select="http_protocol"
3376 mmst_protocol_select="network"
3377 rtmp_protocol_conflict="librtmp_protocol"
3378 rtmp_protocol_select="tcp_protocol"
3379 rtmp_protocol_suggest="zlib"
3380 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3381 rtmpe_protocol_suggest="zlib"
3382 rtmps_protocol_conflict="librtmp_protocol"
3383 rtmps_protocol_select="tls_protocol"
3384 rtmps_protocol_suggest="zlib"
3385 rtmpt_protocol_select="ffrtmphttp_protocol"
3386 rtmpt_protocol_suggest="zlib"
3387 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3388 rtmpte_protocol_suggest="zlib"
3389 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3390 rtmpts_protocol_suggest="zlib"
3391 rtp_protocol_select="udp_protocol"
3392 schannel_conflict="openssl gnutls libtls mbedtls"
3393 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3394 sctp_protocol_select="network"
3395 securetransport_conflict="openssl gnutls libtls mbedtls"
3396 srtp_protocol_select="rtp_protocol srtp"
3397 tcp_protocol_select="network"
3398 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3399 tls_protocol_select="tcp_protocol"
3400 udp_protocol_select="network"
3401 udplite_protocol_select="network"
3402 unix_protocol_deps="sys_un_h"
3403 unix_protocol_select="network"
3404
3405 # external library protocols
3406 librtmp_protocol_deps="librtmp"
3407 librtmpe_protocol_deps="librtmp"
3408 librtmps_protocol_deps="librtmp"
3409 librtmpt_protocol_deps="librtmp"
3410 librtmpte_protocol_deps="librtmp"
3411 libsmbclient_protocol_deps="libsmbclient gplv3"
3412 libsrt_protocol_deps="libsrt"
3413 libsrt_protocol_select="network"
3414 libssh_protocol_deps="libssh"
3415 libtls_conflict="openssl gnutls mbedtls"
3416
3417 # filters
3418 afftdn_filter_deps="avcodec"
3419 afftdn_filter_select="fft"
3420 afftfilt_filter_deps="avcodec"
3421 afftfilt_filter_select="fft"
3422 afir_filter_deps="avcodec"
3423 afir_filter_select="fft"
3424 amovie_filter_deps="avcodec avformat"
3425 aresample_filter_deps="swresample"
3426 asr_filter_deps="pocketsphinx"
3427 ass_filter_deps="libass"
3428 atempo_filter_deps="avcodec"
3429 atempo_filter_select="rdft"
3430 avgblur_opencl_filter_deps="opencl"
3431 azmq_filter_deps="libzmq"
3432 blackframe_filter_deps="gpl"
3433 bm3d_filter_deps="avcodec"
3434 bm3d_filter_select="dct"
3435 boxblur_filter_deps="gpl"
3436 boxblur_opencl_filter_deps="opencl gpl"
3437 bs2b_filter_deps="libbs2b"
3438 colorkey_opencl_filter_deps="opencl"
3439 colormatrix_filter_deps="gpl"
3440 convolution_opencl_filter_deps="opencl"
3441 convolve_filter_deps="avcodec"
3442 convolve_filter_select="fft"
3443 coreimage_filter_deps="coreimage appkit"
3444 coreimage_filter_extralibs="-framework OpenGL"
3445 coreimagesrc_filter_deps="coreimage appkit"
3446 coreimagesrc_filter_extralibs="-framework OpenGL"
3447 cover_rect_filter_deps="avcodec avformat gpl"
3448 cropdetect_filter_deps="gpl"
3449 deconvolve_filter_deps="avcodec"
3450 deconvolve_filter_select="fft"
3451 deinterlace_qsv_filter_deps="libmfx"
3452 deinterlace_vaapi_filter_deps="vaapi"
3453 delogo_filter_deps="gpl"
3454 denoise_vaapi_filter_deps="vaapi"
3455 derain_filter_select="dnn"
3456 deshake_filter_select="pixelutils"
3457 dilation_opencl_filter_deps="opencl"
3458 drawtext_filter_deps="libfreetype"
3459 drawtext_filter_suggest="libfontconfig libfribidi"
3460 elbg_filter_deps="avcodec"
3461 eq_filter_deps="gpl"
3462 erosion_opencl_filter_deps="opencl"
3463 fftfilt_filter_deps="avcodec"
3464 fftfilt_filter_select="rdft"
3465 fftdnoiz_filter_deps="avcodec"
3466 fftdnoiz_filter_select="fft"
3467 find_rect_filter_deps="avcodec avformat gpl"
3468 firequalizer_filter_deps="avcodec"
3469 firequalizer_filter_select="rdft"
3470 flite_filter_deps="libflite"
3471 framerate_filter_select="scene_sad"
3472 freezedetect_filter_select="scene_sad"
3473 frei0r_filter_deps="frei0r libdl"
3474 frei0r_src_filter_deps="frei0r libdl"
3475 fspp_filter_deps="gpl"
3476 geq_filter_deps="gpl"
3477 histeq_filter_deps="gpl"
3478 hqdn3d_filter_deps="gpl"
3479 interlace_filter_deps="gpl"
3480 kerndeint_filter_deps="gpl"
3481 ladspa_filter_deps="ladspa libdl"
3482 lensfun_filter_deps="liblensfun version3"
3483 lv2_filter_deps="lv2"
3484 mcdeint_filter_deps="avcodec gpl"
3485 movie_filter_deps="avcodec avformat"
3486 mpdecimate_filter_deps="gpl"
3487 mpdecimate_filter_select="pixelutils"
3488 minterpolate_filter_select="scene_sad"
3489 mptestsrc_filter_deps="gpl"
3490 negate_filter_deps="lut_filter"
3491 nlmeans_opencl_filter_deps="opencl"
3492 nnedi_filter_deps="gpl"
3493 ocr_filter_deps="libtesseract"
3494 ocv_filter_deps="libopencv"
3495 openclsrc_filter_deps="opencl"
3496 overlay_opencl_filter_deps="opencl"
3497 overlay_qsv_filter_deps="libmfx"
3498 overlay_qsv_filter_select="qsvvpp"
3499 owdenoise_filter_deps="gpl"
3500 pan_filter_deps="swresample"
3501 perspective_filter_deps="gpl"
3502 phase_filter_deps="gpl"
3503 pp7_filter_deps="gpl"
3504 pp_filter_deps="gpl postproc"
3505 prewitt_opencl_filter_deps="opencl"
3506 procamp_vaapi_filter_deps="vaapi"
3507 program_opencl_filter_deps="opencl"
3508 pullup_filter_deps="gpl"
3509 removelogo_filter_deps="avcodec avformat swscale"
3510 repeatfields_filter_deps="gpl"
3511 resample_filter_deps="avresample"
3512 roberts_opencl_filter_deps="opencl"
3513 rubberband_filter_deps="librubberband"
3514 sab_filter_deps="gpl swscale"
3515 scale2ref_filter_deps="swscale"
3516 scale_filter_deps="swscale"
3517 scale_qsv_filter_deps="libmfx"
3518 select_filter_select="scene_sad"
3519 sharpness_vaapi_filter_deps="vaapi"
3520 showcqt_filter_deps="avcodec avformat swscale"
3521 showcqt_filter_suggest="libfontconfig libfreetype"
3522 showcqt_filter_select="fft"
3523 showfreqs_filter_deps="avcodec"
3524 showfreqs_filter_select="fft"
3525 showspectrum_filter_deps="avcodec"
3526 showspectrum_filter_select="fft"
3527 showspectrumpic_filter_deps="avcodec"
3528 showspectrumpic_filter_select="fft"
3529 signature_filter_deps="gpl avcodec avformat"
3530 smartblur_filter_deps="gpl swscale"
3531 sobel_opencl_filter_deps="opencl"
3532 sofalizer_filter_deps="libmysofa avcodec"
3533 sofalizer_filter_select="fft"
3534 spectrumsynth_filter_deps="avcodec"
3535 spectrumsynth_filter_select="fft"
3536 spp_filter_deps="gpl avcodec"
3537 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3538 sr_filter_deps="avformat swscale"
3539 sr_filter_select="dnn"
3540 stereo3d_filter_deps="gpl"
3541 subtitles_filter_deps="avformat avcodec libass"
3542 super2xsai_filter_deps="gpl"
3543 pixfmts_super2xsai_test_deps="super2xsai_filter"
3544 tinterlace_filter_deps="gpl"
3545 tinterlace_merge_test_deps="tinterlace_filter"
3546 tinterlace_pad_test_deps="tinterlace_filter"
3547 tonemap_filter_deps="const_nan"
3548 tonemap_opencl_filter_deps="opencl const_nan"
3549 transpose_opencl_filter_deps="opencl"
3550 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3551 unsharp_opencl_filter_deps="opencl"
3552 uspp_filter_deps="gpl avcodec"
3553 vaguedenoiser_filter_deps="gpl"
3554 vidstabdetect_filter_deps="libvidstab"
3555 vidstabtransform_filter_deps="libvidstab"
3556 libvmaf_filter_deps="libvmaf pthreads"
3557 zmq_filter_deps="libzmq"
3558 zoompan_filter_deps="swscale"
3559 zscale_filter_deps="libzimg const_nan"
3560 scale_vaapi_filter_deps="vaapi"
3561 vpp_qsv_filter_deps="libmfx"
3562 vpp_qsv_filter_select="qsvvpp"
3563 yadif_cuda_filter_deps="ffnvcodec"
3564 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3565
3566 # examples
3567 avio_dir_cmd_deps="avformat avutil"
3568 avio_reading_deps="avformat avcodec avutil"
3569 decode_audio_example_deps="avcodec avutil"
3570 decode_video_example_deps="avcodec avutil"
3571 demuxing_decoding_example_deps="avcodec avformat avutil"
3572 encode_audio_example_deps="avcodec avutil"
3573 encode_video_example_deps="avcodec avutil"
3574 extract_mvs_example_deps="avcodec avformat avutil"
3575 filter_audio_example_deps="avfilter avutil"
3576 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3577 filtering_video_example_deps="avfilter avcodec avformat avutil"
3578 http_multiclient_example_deps="avformat avutil fork"
3579 hw_decode_example_deps="avcodec avformat avutil"
3580 metadata_example_deps="avformat avutil"
3581 muxing_example_deps="avcodec avformat avutil swscale"
3582 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3583 remuxing_example_deps="avcodec avformat avutil"
3584 resampling_audio_example_deps="avutil swresample"
3585 scaling_video_example_deps="avutil swscale"
3586 transcode_aac_example_deps="avcodec avformat swresample"
3587 transcoding_example_deps="avfilter avcodec avformat avutil"
3588 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3589 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3590
3591 # EXTRALIBS_LIST
3592 cpu_init_extralibs="pthreads_extralibs"
3593 cws2fws_extralibs="zlib_extralibs"
3594
3595 # libraries, in any order
3596 avcodec_deps="avutil"
3597 avcodec_suggest="libm"
3598 avcodec_select="null_bsf"
3599 avdevice_deps="avformat avcodec avutil"
3600 avdevice_suggest="libm"
3601 avfilter_deps="avutil"
3602 avfilter_suggest="libm"
3603 avformat_deps="avcodec avutil"
3604 avformat_suggest="libm network zlib"
3605 avresample_deps="avutil"
3606 avresample_suggest="libm"
3607 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3608 postproc_deps="avutil gpl"
3609 postproc_suggest="libm"
3610 swresample_deps="avutil"
3611 swresample_suggest="libm libsoxr"
3612 swscale_deps="avutil"
3613 swscale_suggest="libm"
3614
3615 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3616 avfilter_extralibs="pthreads_extralibs"
3617 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3618
3619 # programs
3620 ffmpeg_deps="avcodec avfilter avformat"
3621 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3622                hflip_filter null_filter
3623                transpose_filter trim_filter vflip_filter"
3624 ffmpeg_suggest="ole32 psapi shell32"
3625 ffplay_deps="avcodec avformat swscale swresample sdl2"
3626 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3627 ffplay_suggest="shell32"
3628 ffprobe_deps="avcodec avformat"
3629 ffprobe_suggest="shell32"
3630
3631 # documentation
3632 podpages_deps="perl"
3633 manpages_deps="perl pod2man"
3634 htmlpages_deps="perl"
3635 htmlpages_deps_any="makeinfo_html texi2html"
3636 txtpages_deps="perl makeinfo"
3637 doc_deps_any="manpages htmlpages podpages txtpages"
3638
3639 # default parameters
3640
3641 logfile="ffbuild/config.log"
3642
3643 # installation paths
3644 prefix_default="/usr/local"
3645 bindir_default='${prefix}/bin'
3646 datadir_default='${prefix}/share/ffmpeg'
3647 docdir_default='${prefix}/share/doc/ffmpeg'
3648 incdir_default='${prefix}/include'
3649 libdir_default='${prefix}/lib'
3650 mandir_default='${prefix}/share/man'
3651
3652 # toolchain
3653 ar_default="ar"
3654 cc_default="gcc"
3655 cxx_default="g++"
3656 host_cc_default="gcc"
3657 doxygen_default="doxygen"
3658 install="install"
3659 ln_s_default="ln -s -f"
3660 nm_default="nm -g"
3661 pkg_config_default=pkg-config
3662 ranlib_default="ranlib"
3663 strip_default="strip"
3664 version_script='--version-script'
3665 objformat="elf32"
3666 x86asmexe_default="nasm"
3667 windres_default="windres"
3668 striptype="direct"
3669
3670 # OS
3671 target_os_default=$(tolower $(uname -s))
3672 host_os=$target_os_default
3673
3674 # machine
3675 if test "$target_os_default" = aix; then
3676     arch_default=$(uname -p)
3677     strip_default="strip -X32_64"
3678     nm_default="nm -g -X32_64"
3679 else
3680     arch_default=$(uname -m)
3681 fi
3682 cpu="generic"
3683 intrinsics="none"
3684
3685 # configurable options
3686 enable $PROGRAM_LIST
3687 enable $DOCUMENT_LIST
3688 enable $EXAMPLE_LIST
3689 enable $(filter_out avresample $LIBRARY_LIST)
3690 enable stripping
3691
3692 enable asm
3693 enable debug
3694 enable doc
3695 enable faan faandct faanidct
3696 enable optimizations
3697 enable runtime_cpudetect
3698 enable safe_bitstream_reader
3699 enable static
3700 enable swscale_alpha
3701 enable valgrind_backtrace
3702
3703 sws_max_filter_size_default=256
3704 set_default sws_max_filter_size
3705
3706 # internal components are enabled by default
3707 enable $EXTRALIBS_LIST
3708
3709 # Avoid external, non-system, libraries getting enabled by dependency resolution
3710 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3711
3712 # build settings
3713 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3714 LIBPREF="lib"
3715 LIBSUF=".a"
3716 FULLNAME='$(NAME)$(BUILDSUF)'
3717 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3718 SLIBPREF="lib"
3719 SLIBSUF=".so"
3720 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3721 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3722 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3723 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3724 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3725 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3726 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3727
3728 asflags_filter=echo
3729 cflags_filter=echo
3730 ldflags_filter=echo
3731
3732 AS_C='-c'
3733 AS_O='-o $@'
3734 CC_C='-c'
3735 CC_E='-E -o $@'
3736 CC_O='-o $@'
3737 CXX_C='-c'
3738 CXX_O='-o $@'
3739 OBJCC_C='-c'
3740 OBJCC_E='-E -o $@'
3741 OBJCC_O='-o $@'
3742 X86ASM_O='-o $@'
3743 LD_O='-o $@'
3744 LD_LIB='-l%'
3745 LD_PATH='-L'
3746 HOSTCC_C='-c'
3747 HOSTCC_E='-E -o $@'
3748 HOSTCC_O='-o $@'
3749 HOSTLD_O='-o $@'
3750 NVCC_C='-c'
3751 NVCC_O='-o $@'
3752
3753 host_extralibs='-lm'
3754 host_cflags_filter=echo
3755 host_ldflags_filter=echo
3756
3757 target_path='$(CURDIR)'
3758
3759 # since the object filename is not given with the -MM flag, the compiler
3760 # is only able to print the basename, and we must add the path ourselves
3761 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3762 DEPFLAGS='-MM'
3763
3764 mkdir -p ffbuild
3765
3766 # find source path
3767 if test -f configure; then
3768     source_path=.
3769 elif test -f src/configure; then
3770     source_path=src
3771 else
3772     source_path=$(cd $(dirname "$0"); pwd)
3773     case "$source_path" in
3774         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3775     esac
3776     test -e "$source_path/config.h" &&
3777         die "Out of tree builds are impossible with config.h in source dir."
3778 fi
3779
3780 for v in "$@"; do
3781     r=${v#*=}
3782     l=${v%"$r"}
3783     r=$(sh_quote "$r")
3784     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3785 done
3786
3787 find_things_extern(){
3788     thing=$1
3789     pattern=$2
3790     file=$source_path/$3
3791     out=${4:-$thing}
3792     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3793 }
3794
3795 find_filters_extern(){
3796     file=$source_path/$1
3797     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3798 }
3799
3800 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3801 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3802 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3803 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3804 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3805 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3806 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3807 CODEC_LIST="
3808     $ENCODER_LIST
3809     $DECODER_LIST
3810 "
3811 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3812 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3813 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3814 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3815
3816 AVCODEC_COMPONENTS_LIST="
3817     $BSF_LIST
3818     $DECODER_LIST
3819     $ENCODER_LIST
3820     $HWACCEL_LIST
3821     $PARSER_LIST
3822 "
3823
3824 AVDEVICE_COMPONENTS_LIST="
3825     $INDEV_LIST
3826     $OUTDEV_LIST
3827 "
3828
3829 AVFILTER_COMPONENTS_LIST="
3830     $FILTER_LIST
3831 "
3832
3833 AVFORMAT_COMPONENTS_LIST="
3834     $DEMUXER_LIST
3835     $MUXER_LIST
3836     $PROTOCOL_LIST
3837 "
3838
3839 ALL_COMPONENTS="
3840     $AVCODEC_COMPONENTS_LIST
3841     $AVDEVICE_COMPONENTS_LIST
3842     $AVFILTER_COMPONENTS_LIST
3843     $AVFORMAT_COMPONENTS_LIST
3844 "
3845
3846 for n in $COMPONENT_LIST; do
3847     v=$(toupper ${n%s})_LIST
3848     eval enable \$$v
3849     eval ${n}_if_any="\$$v"
3850 done
3851
3852 enable $ARCH_EXT_LIST
3853
3854 die_unknown(){
3855     echo "Unknown option \"$1\"."
3856     echo "See $0 --help for available options."
3857     exit 1
3858 }
3859
3860 print_in_columns() {
3861     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3862     {
3863         num_cols = width > col_width ? int(width / col_width) : 1;
3864         num_rows = int((NF + num_cols-1) / num_cols);
3865         y = x = 1;
3866         for (y = 1; y <= num_rows; y++) {
3867             i = y;
3868             for (x = 1; x <= num_cols; x++) {
3869                 if (i <= NF) {
3870                   line = sprintf("%s%-" col_width "s", line, $i);
3871                 }
3872                 i = i + num_rows;
3873             }
3874             print line; line = "";
3875         }
3876     }' | sed 's/ *$//'
3877 }
3878
3879 show_list() {
3880     suffix=_$1
3881     shift
3882     echo $* | sed s/$suffix//g | print_in_columns
3883     exit 0
3884 }
3885
3886 rand_list(){
3887     IFS=', '
3888     set -- $*
3889     unset IFS
3890     for thing; do
3891         comp=${thing%:*}
3892         prob=${thing#$comp}
3893         prob=${prob#:}
3894         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3895         echo "prob ${prob:-0.5}"
3896         printf '%s\n' $comp
3897     done
3898 }
3899
3900 do_random(){
3901     action=$1
3902     shift
3903     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3904     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3905 }
3906
3907 for opt do
3908     optval="${opt#*=}"
3909     case "$opt" in
3910         --extra-ldflags=*)
3911             add_ldflags $optval
3912         ;;
3913         --extra-ldexeflags=*)
3914             add_ldexeflags $optval
3915         ;;
3916         --extra-ldsoflags=*)
3917             add_ldsoflags $optval
3918         ;;
3919         --extra-ldlibflags=*)
3920             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3921                  "removed in the future. Use --extra-ldsoflags instead."
3922             add_ldsoflags $optval
3923         ;;
3924         --extra-libs=*)
3925             add_extralibs $optval
3926         ;;
3927         --disable-devices)
3928             disable $INDEV_LIST $OUTDEV_LIST
3929         ;;
3930         --enable-debug=*)
3931             debuglevel="$optval"
3932         ;;
3933         --disable-programs)
3934             disable $PROGRAM_LIST
3935         ;;
3936         --disable-everything)
3937             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3938         ;;
3939         --disable-all)
3940             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3941             disable $LIBRARY_LIST $PROGRAM_LIST doc
3942             enable avutil
3943         ;;
3944         --enable-random|--disable-random)
3945             action=${opt%%-random}
3946             do_random ${action#--} $COMPONENT_LIST
3947         ;;
3948         --enable-random=*|--disable-random=*)
3949             action=${opt%%-random=*}
3950             do_random ${action#--} $optval
3951         ;;
3952         --enable-sdl)
3953             enable sdl2
3954         ;;
3955         --enable-*=*|--disable-*=*)
3956             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3957             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3958             eval list=\$$(toupper $thing)_LIST
3959             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3960             list=$(filter "$name" $list)
3961             [ "$list" = "" ] && warn "Option $opt did not match anything"
3962             test $action = enable && warn_if_gets_disabled $list
3963             $action $list
3964         ;;
3965         --enable-yasm|--disable-yasm)
3966             warn "The ${opt} option is only provided for compatibility and will be\n"\
3967                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3968             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3969         ;;
3970         --yasmexe=*)
3971             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3972                  "removed in the future. Use --x86asmexe instead."
3973             x86asmexe="$optval"
3974         ;;
3975         --enable-?*|--disable-?*)
3976             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3977             if is_in $option $COMPONENT_LIST; then
3978                 test $action = disable && action=unset
3979                 eval $action \$$(toupper ${option%s})_LIST
3980             elif is_in $option $CMDLINE_SELECT; then
3981                 $action $option
3982             else
3983                 die_unknown $opt
3984             fi
3985         ;;
3986         --list-*)
3987             NAME="${opt#--list-}"
3988             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3989             NAME=${NAME%s}
3990             eval show_list $NAME \$$(toupper $NAME)_LIST
3991         ;;
3992         --help|-h) show_help
3993         ;;
3994         --quiet|-q) quiet=yes
3995         ;;
3996         --fatal-warnings) enable fatal_warnings
3997         ;;
3998         --libfuzzer=*)
3999             libfuzzer_path="$optval"
4000         ;;
4001         *)
4002             optname="${opt%%=*}"
4003             optname="${optname#--}"
4004             optname=$(echo "$optname" | sed 's/-/_/g')
4005             if is_in $optname $CMDLINE_SET; then
4006                 eval $optname='$optval'
4007             elif is_in $optname $CMDLINE_APPEND; then
4008                 append $optname "$optval"
4009             else
4010                 die_unknown $opt
4011             fi
4012         ;;
4013     esac
4014 done
4015
4016 for e in $env; do
4017     eval "export $e"
4018 done
4019
4020 if disabled autodetect; then
4021
4022     # Unless iconv is explicitely disabled by the user, we still want to probe
4023     # for the iconv from the libc.
4024     disabled iconv || enable libc_iconv
4025
4026     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4027     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4028 fi
4029 # Mark specifically enabled, but normally autodetected libraries as requested.
4030 for lib in $AUTODETECT_LIBS; do
4031     enabled $lib && request $lib
4032 done
4033 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4034 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4035 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4036
4037 disabled logging && logfile=/dev/null
4038
4039 # command line configuration sanity checks
4040
4041 # we need to build at least one lib type
4042 if ! enabled_any static shared; then
4043     cat <<EOF
4044 At least one library type must be built.
4045 Specify --enable-static to build the static libraries or --enable-shared to
4046 build the shared libraries as well. To only build the shared libraries specify
4047 --disable-static in addition to --enable-shared.
4048 EOF
4049     exit 1
4050 fi
4051
4052 die_license_disabled() {
4053     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4054 }
4055
4056 die_license_disabled_gpl() {
4057     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4058 }
4059
4060 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4061 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4062
4063 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4064 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4065
4066 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4067
4068 if enabled nonfree; then
4069     license="nonfree and unredistributable"
4070 elif enabled gplv3; then
4071     license="GPL version 3 or later"
4072 elif enabled lgplv3; then
4073     license="LGPL version 3 or later"
4074 elif enabled gpl; then
4075     license="GPL version 2 or later"
4076 else
4077     license="LGPL version 2.1 or later"
4078 fi
4079
4080 enabled_all gnutls openssl &&
4081     die "GnuTLS and OpenSSL must not be enabled at the same time."
4082
4083 enabled_all gnutls mbedtls &&
4084     die "GnuTLS and mbedTLS must not be enabled at the same time."
4085
4086 enabled_all openssl mbedtls &&
4087     die "OpenSSL and mbedTLS must not be enabled at the same time."
4088
4089 # Disable all the library-specific components if the library itself
4090 # is disabled, see AVCODEC_LIST and following _LIST variables.
4091
4092 disable_components(){
4093     disabled ${1} && disable $(
4094         eval components="\$$(toupper ${1})_COMPONENTS"
4095         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4096     )
4097 }
4098
4099 map 'disable_components $v' $LIBRARY_LIST
4100
4101 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4102 set >> $logfile
4103
4104 test -n "$valgrind" && toolchain="valgrind-memcheck"
4105
4106 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4107     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4108     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4109 }
4110
4111 case "$toolchain" in
4112     *-asan)
4113         cc_default="${toolchain%-asan}"
4114         add_cflags  -fsanitize=address
4115         add_ldflags -fsanitize=address
4116     ;;
4117     *-msan)
4118         cc_default="${toolchain%-msan}"
4119         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4120         add_ldflags -fsanitize=memory
4121     ;;
4122     *-tsan)
4123         cc_default="${toolchain%-tsan}"
4124         add_cflags  -fsanitize=thread
4125         add_ldflags -fsanitize=thread
4126         case "$toolchain" in
4127             gcc-tsan)
4128                 add_cflags  -fPIC
4129                 add_ldflags -fPIC
4130                 ;;
4131         esac
4132     ;;
4133     *-usan)
4134         cc_default="${toolchain%-usan}"
4135         add_cflags  -fsanitize=undefined
4136         add_ldflags -fsanitize=undefined
4137     ;;
4138     valgrind-*)
4139         target_exec_default="valgrind"
4140         case "$toolchain" in
4141             valgrind-massif)
4142                 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"
4143                 ;;
4144             valgrind-memcheck)
4145                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4146                 ;;
4147         esac
4148     ;;
4149     msvc)
4150         # Check whether the current MSVC version needs the C99 converter.
4151         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4152         # support enough of C99 to build ffmpeg. Default to the new
4153         # behaviour if the regexp was unable to match anything, since this
4154         # successfully parses the version number of existing supported
4155         # versions that require the converter (MSVC 2010 and 2012).
4156         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4157         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4158             cc_default="cl.exe"
4159             cxx_default="cl.exe"
4160         else
4161             die "Unsupported MSVC version (2013 or newer required)"
4162         fi
4163         ld_default="$source_path/compat/windows/mslink"
4164         nm_default="dumpbin.exe -symbols"
4165         ar_default="lib.exe"
4166         case "$arch" in
4167         aarch64|arm64)
4168             as_default="armasm64.exe"
4169             ;;
4170         arm*)
4171             as_default="armasm.exe"
4172             ;;
4173         esac
4174         target_os_default="win32"
4175         # Use a relative path for TMPDIR. This makes sure all the
4176         # ffconf temp files are written with a relative path, avoiding
4177         # issues with msys/win32 path conversion for MSVC parameters
4178         # such as -Fo<file> or -out:<file>.
4179         TMPDIR=.
4180     ;;
4181     icl)
4182         cc_default="icl"
4183         ld_default="xilink"
4184         nm_default="dumpbin -symbols"
4185         ar_default="xilib"
4186         target_os_default="win32"
4187         TMPDIR=.
4188     ;;
4189     gcov)
4190         add_cflags  -fprofile-arcs -ftest-coverage
4191         add_ldflags -fprofile-arcs -ftest-coverage
4192     ;;
4193     llvm-cov)
4194         add_cflags -fprofile-arcs -ftest-coverage
4195         add_ldflags --coverage
4196     ;;
4197     hardened)
4198         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4199         add_cflags   -fno-strict-overflow -fstack-protector-all
4200         add_ldflags  -Wl,-z,relro -Wl,-z,now
4201         add_cflags   -fPIE
4202         add_ldexeflags -fPIE -pie
4203     ;;
4204     ?*)
4205         die "Unknown toolchain $toolchain"
4206     ;;
4207 esac
4208
4209 if test -n "$cross_prefix"; then
4210     test -n "$arch" && test -n "$target_os" ||
4211         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4212     enable cross_compile
4213 fi
4214
4215 set_default target_os
4216 if test "$target_os" = android; then
4217     cc_default="clang"
4218 fi
4219
4220 ar_default="${cross_prefix}${ar_default}"
4221 cc_default="${cross_prefix}${cc_default}"
4222 cxx_default="${cross_prefix}${cxx_default}"
4223 nm_default="${cross_prefix}${nm_default}"
4224 pkg_config_default="${cross_prefix}${pkg_config_default}"
4225 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4226     ranlib_default="${cross_prefix}${ranlib_default} -D"
4227 else
4228     ranlib_default="${cross_prefix}${ranlib_default}"
4229 fi
4230 strip_default="${cross_prefix}${strip_default}"
4231 windres_default="${cross_prefix}${windres_default}"
4232
4233 sysinclude_default="${sysroot}/usr/include"
4234
4235 if enabled cuda_sdk; then
4236     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4237     enable cuda_nvcc
4238 fi
4239
4240 if enabled cuda_nvcc; then
4241     nvcc_default="nvcc"
4242     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4243 else
4244     nvcc_default="clang"
4245     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4246     NVCC_C=""
4247 fi
4248
4249 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4250     target_exec x86asmexe nvcc
4251 enabled cross_compile || host_cc_default=$cc
4252 set_default host_cc
4253
4254 pkg_config_fail_message=""
4255 if ! $pkg_config --version >/dev/null 2>&1; then
4256     warn "$pkg_config not found, library detection may fail."
4257     pkg_config=false
4258 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4259     pkg_config_fail_message="
4260 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4261 fi
4262
4263 if test $doxygen != $doxygen_default && \
4264   ! $doxygen --version >/dev/null 2>&1; then
4265     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4266 fi
4267
4268 exesuf() {
4269     case $1 in
4270         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4271     esac
4272 }
4273
4274 EXESUF=$(exesuf $target_os)
4275 HOSTEXESUF=$(exesuf $host_os)
4276
4277 # set temporary file name
4278 : ${TMPDIR:=$TEMPDIR}
4279 : ${TMPDIR:=$TMP}
4280 : ${TMPDIR:=/tmp}
4281
4282 if [ -n "$tempprefix" ] ; then
4283     mktemp(){
4284         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4285         echo "$tmpname"
4286         mkdir "$tmpname"
4287     }
4288 elif ! test_cmd mktemp -u XXXXXX; then
4289     # simple replacement for missing mktemp
4290     # NOT SAFE FOR GENERAL USE
4291     mktemp(){
4292         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4293         echo "$tmpname"
4294         mkdir "$tmpname"
4295     }
4296 fi
4297
4298 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4299     die "Unable to create temporary directory in $TMPDIR."
4300
4301 tmpfile(){
4302     tmp="${FFTMPDIR}/test"$2
4303     (set -C; exec > $tmp) 2> /dev/null ||
4304         die "Unable to create temporary file in $FFTMPDIR."
4305     eval $1=$tmp
4306 }
4307
4308 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4309 trap 'exit 2' INT
4310
4311 tmpfile TMPASM .asm
4312 tmpfile TMPC   .c
4313 tmpfile TMPCPP .cpp
4314 tmpfile TMPE   $EXESUF
4315 tmpfile TMPH   .h
4316 tmpfile TMPM   .m
4317 tmpfile TMPCU  .cu
4318 tmpfile TMPO   .o
4319 tmpfile TMPS   .S
4320 tmpfile TMPSH  .sh
4321 tmpfile TMPV   .ver
4322
4323 unset -f mktemp
4324
4325 chmod +x $TMPE
4326
4327 # make sure we can execute files in $TMPDIR
4328 cat > $TMPSH 2>> $logfile <<EOF
4329 #! /bin/sh
4330 EOF
4331 chmod +x $TMPSH >> $logfile 2>&1
4332 if ! $TMPSH >> $logfile 2>&1; then
4333     cat <<EOF
4334 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4335 variable to another directory and make sure that it is not mounted noexec.
4336 EOF
4337     die "Sanity test failed."
4338 fi
4339
4340 armasm_flags(){
4341     for flag; do
4342         case $flag in
4343             # Filter out MSVC cl.exe options from cflags that shouldn't
4344             # be passed to gas-preprocessor
4345             -M[TD]*)                                            ;;
4346             *)                  echo $flag                      ;;
4347         esac
4348    done
4349 }
4350
4351 cparser_flags(){
4352     for flag; do
4353         case $flag in
4354             -Wno-switch)             echo -Wno-switch-enum ;;
4355             -Wno-format-zero-length) ;;
4356             -Wdisabled-optimization) ;;
4357             -Wno-pointer-sign)       echo -Wno-other ;;
4358             *)                       echo $flag ;;
4359         esac
4360     done
4361 }
4362
4363 msvc_common_flags(){
4364     for flag; do
4365         case $flag in
4366             # In addition to specifying certain flags under the compiler
4367             # specific filters, they must be specified here as well or else the
4368             # generic catch all at the bottom will print the original flag.
4369             -Wall)                ;;
4370             -Wextra)              ;;
4371             -std=c99)             ;;
4372             # Common flags
4373             -fomit-frame-pointer) ;;
4374             -g)                   echo -Z7 ;;
4375             -fno-math-errno)      ;;
4376             -fno-common)          ;;
4377             -fno-signed-zeros)    ;;
4378             -fPIC)                ;;
4379             -mthumb)              ;;
4380             -march=*)             ;;
4381             -lz)                  echo zlib.lib ;;
4382             -lx264)               echo libx264.lib ;;
4383             -lstdc++)             ;;
4384             -l*)                  echo ${flag#-l}.lib ;;
4385             -LARGEADDRESSAWARE)   echo $flag ;;
4386             -L*)                  echo -libpath:${flag#-L} ;;
4387             *)                    echo $flag ;;
4388         esac
4389     done
4390 }
4391
4392 msvc_flags(){
4393     msvc_common_flags "$@"
4394     for flag; do
4395         case $flag in
4396             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4397                                        -wd4554 ;;
4398             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4399                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4400                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4401                                        -wd4307 \
4402                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4403         esac
4404     done
4405 }
4406
4407 icl_flags(){
4408     msvc_common_flags "$@"
4409     for flag; do
4410         case $flag in
4411             # Despite what Intel's documentation says -Wall, which is supported
4412             # on Windows, does enable remarks so disable them here.
4413             -Wall)                echo $flag -Qdiag-disable:remark ;;
4414             -std=c99)             echo -Qstd=c99 ;;
4415             -flto)                echo -ipo ;;
4416         esac
4417     done
4418 }
4419
4420 icc_flags(){
4421     for flag; do
4422         case $flag in
4423             -flto)                echo -ipo ;;
4424             *)                    echo $flag ;;
4425         esac
4426     done
4427 }
4428
4429 suncc_flags(){
4430     for flag; do
4431         case $flag in
4432             -march=*|-mcpu=*)
4433                 case "${flag#*=}" in
4434                     native)                   echo -xtarget=native       ;;
4435                     v9|niagara)               echo -xarch=sparc          ;;
4436                     ultrasparc)               echo -xarch=sparcvis       ;;
4437                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4438                     i586|pentium)             echo -xchip=pentium        ;;
4439                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4440                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4441                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4442                     pentium4*)          echo -xtarget=pentium4           ;;
4443                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4444                     *-sse3)             echo -xarch=sse3                 ;;
4445                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4446                     bonnell)                   echo -xarch=ssse3         ;;
4447                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4448                     westmere)                  echo -xtarget=westmere    ;;
4449                     silvermont)                echo -xarch=sse4_2        ;;
4450                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4451                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4452                                                echo -xarch=avx           ;;
4453                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4454                     btver1)                    echo -xarch=amdsse4a      ;;
4455                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4456                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4457                     k8|opteron|athlon64|athlon-fx)
4458                                                echo -xarch=sse2a         ;;
4459                     athlon*)                   echo -xarch=pentium_proa  ;;
4460                 esac
4461                 ;;
4462             -std=c99)             echo -xc99              ;;
4463             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4464             -fPIC)                echo -KPIC -xcode=pic32 ;;
4465             -W*,*)                echo $flag              ;;
4466             -f*-*|-W*|-mimpure-text)                      ;;
4467             -shared)              echo -G                 ;;
4468             *)                    echo $flag              ;;
4469         esac
4470     done
4471 }
4472
4473 probe_cc(){
4474     pfx=$1
4475     _cc=$2
4476     first=$3
4477
4478     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4479     unset _ld_o _ldflags _ld_lib _ld_path
4480     unset _depflags _DEPCMD _DEPFLAGS
4481     _flags_filter=echo
4482
4483     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4484         true # no-op to avoid reading stdin in following checks
4485     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4486         _type=llvm_gcc
4487         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4488         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4489         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4490         _cflags_speed='-O3'
4491         _cflags_size='-Os'
4492     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4493         _type=gcc
4494         gcc_version=$($_cc --version | head -n1)
4495         gcc_basever=$($_cc -dumpversion)
4496         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4497         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4498         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4499         case $gcc_basever in
4500             2) ;;
4501             2.*) ;;
4502             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4503         esac
4504         if [ "$first" = true ]; then
4505             case $gcc_basever in
4506                 4.2*)
4507                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4508             esac
4509         fi
4510         _cflags_speed='-O3'
4511         _cflags_size='-Os'
4512     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4513         _type=icc
4514         _ident=$($_cc --version | head -n1)
4515         _depflags='-MMD'
4516         _cflags_speed='-O3'
4517         _cflags_size='-Os'
4518         _cflags_noopt='-O1'
4519         _flags_filter=icc_flags
4520     elif $_cc -v 2>&1 | grep -q xlc; then
4521         _type=xlc
4522         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4523         _cflags_speed='-O5'
4524         _cflags_size='-O5 -qcompact'
4525     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4526         test -d "$sysroot" || die "No valid sysroot specified."
4527         _type=armcc
4528         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4529         armcc_conf="$PWD/armcc.conf"
4530         $_cc --arm_linux_configure                 \
4531              --arm_linux_config_file="$armcc_conf" \
4532              --configure_sysroot="$sysroot"        \
4533              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4534              die "Error creating armcc configuration file."
4535         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4536         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4537         as_default="${cross_prefix}gcc"
4538         _depflags='-MMD'
4539         _cflags_speed='-O3'
4540         _cflags_size='-Os'
4541     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4542         _type=clang
4543         _ident=$($_cc --version 2>/dev/null | head -n1)
4544         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4545         _cflags_speed='-O3'
4546         _cflags_size='-Oz'
4547     elif $_cc -V 2>&1 | grep -q Sun; then
4548         _type=suncc
4549         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4550         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4551         _DEPFLAGS='-xM1 -xc99'
4552         _ldflags='-std=c99'
4553         _cflags_speed='-O5'
4554         _cflags_size='-O5 -xspace'
4555         _flags_filter=suncc_flags
4556     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4557         _type=pathscale
4558         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4559         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4560         _cflags_speed='-O2'
4561         _cflags_size='-Os'
4562         _flags_filter='filter_out -Wdisabled-optimization'
4563     elif $_cc -v 2>&1 | grep -q Open64; then
4564         _type=open64
4565         _ident=$($_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|-Wtype-limits|-fno-signed-zeros'
4570     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4571         _type=armasm
4572         _ident=$($_cc | head -n1)
4573         # 4509: "This form of conditional instruction is deprecated"
4574         _flags="-nologo -ignore 4509"
4575         _flags_filter=armasm_flags
4576     elif $_cc 2>&1 | grep -q Intel; then
4577         _type=icl
4578         _ident=$($_cc 2>&1 | head -n1)
4579         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4580         # Not only is O3 broken on 13.x+ but it is slower on all previous
4581         # versions (tested) as well.
4582         _cflags_speed="-O2"
4583         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4584         if $_cc 2>&1 | grep -q Linker; then
4585             _ld_o='-out:$@'
4586         else
4587             _ld_o='-Fe$@'
4588         fi
4589         _cc_o='-Fo$@'
4590         _cc_e='-P'
4591         _flags_filter=icl_flags
4592         _ld_lib='lib%.a'
4593         _ld_path='-libpath:'
4594         # -Qdiag-error to make icl error when seeing certain unknown arguments
4595         _flags='-nologo -Qdiag-error:4044,10157'
4596         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4597         # with MSVC which enables it by default.
4598         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4599         disable stripping
4600     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4601         # lld can emulate multiple different linkers; in ms link.exe mode,
4602         # the -? parameter gives the help output which contains an identifyable
4603         # string, while it gives an error in other modes.
4604         _type=lld-link
4605         # The link.exe mode doesn't have a switch for getting the version,
4606         # but we can force it back to gnu mode and get the version from there.
4607         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4608         _ld_o='-out:$@'
4609         _flags_filter=msvc_flags
4610         _ld_lib='lib%.a'
4611         _ld_path='-libpath:'
4612     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4613         _type=msvc
4614         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4615         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4616         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4617         _cflags_speed="-O2"
4618         _cflags_size="-O1"
4619         _cflags_noopt="-O1"
4620         if $_cc -nologo- 2>&1 | grep -q Linker; then
4621             _ld_o='-out:$@'
4622         else
4623             _ld_o='-Fe$@'
4624         fi
4625         _cc_o='-Fo$@'
4626         _cc_e='-P -Fi$@'
4627         _flags_filter=msvc_flags
4628         _ld_lib='lib%.a'
4629         _ld_path='-libpath:'
4630         _flags='-nologo'
4631         disable stripping
4632     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4633         _type=cparser
4634         _ident=$($_cc --version | head -n1)
4635         _depflags='-MMD'
4636         _cflags_speed='-O4'
4637         _cflags_size='-O2'
4638         _flags_filter=cparser_flags
4639     fi
4640
4641     eval ${pfx}_type=\$_type
4642     eval ${pfx}_ident=\$_ident
4643 }
4644
4645 set_ccvars(){
4646     eval ${1}_C=\${_cc_c-\${${1}_C}}
4647     eval ${1}_E=\${_cc_e-\${${1}_E}}
4648     eval ${1}_O=\${_cc_o-\${${1}_O}}
4649
4650     if [ -n "$_depflags" ]; then
4651         eval ${1}_DEPFLAGS=\$_depflags
4652     else
4653         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4654         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4655         eval DEP${1}FLAGS=\$_flags
4656     fi
4657 }
4658
4659 probe_cc cc "$cc" "true"
4660 cflags_filter=$_flags_filter
4661 cflags_speed=$_cflags_speed
4662 cflags_size=$_cflags_size
4663 cflags_noopt=$_cflags_noopt
4664 add_cflags $_flags $_cflags
4665 cc_ldflags=$_ldflags
4666 set_ccvars CC
4667 set_ccvars CXX
4668
4669 probe_cc hostcc "$host_cc"
4670 host_cflags_filter=$_flags_filter
4671 host_cflags_speed=$_cflags_speed
4672 add_host_cflags  $_flags $_cflags
4673 set_ccvars HOSTCC
4674
4675 test -n "$cc_type" && enable $cc_type ||
4676     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4677
4678 : ${as_default:=$cc}
4679 : ${objcc_default:=$cc}
4680 : ${dep_cc_default:=$cc}
4681 : ${ld_default:=$cc}
4682 : ${host_ld_default:=$host_cc}
4683 set_default ar as objcc dep_cc ld ln_s host_ld windres
4684
4685 probe_cc as "$as"
4686 asflags_filter=$_flags_filter
4687 add_asflags $_flags $_cflags
4688 set_ccvars AS
4689
4690 probe_cc objcc "$objcc"
4691 objcflags_filter=$_flags_filter
4692 add_objcflags $_flags $_cflags
4693 set_ccvars OBJC
4694
4695 probe_cc ld "$ld"
4696 ldflags_filter=$_flags_filter
4697 add_ldflags $_flags $_ldflags
4698 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4699 LD_O=${_ld_o-$LD_O}
4700 LD_LIB=${_ld_lib-$LD_LIB}
4701 LD_PATH=${_ld_path-$LD_PATH}
4702
4703 probe_cc hostld "$host_ld"
4704 host_ldflags_filter=$_flags_filter
4705 add_host_ldflags $_flags $_ldflags
4706 HOSTLD_O=${_ld_o-$HOSTLD_O}
4707
4708 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4709     probe_cc depcc "$dep_cc"
4710     CCDEP=${_DEPCMD:-$DEPCMD}
4711     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4712     DEPCCFLAGS=$_flags
4713 fi
4714
4715 if $ar 2>&1 | grep -q Microsoft; then
4716     arflags="-nologo"
4717     ar_o='-out:$@'
4718 elif $ar 2>&1 | grep -q "\[D\] "; then
4719     arflags="rcD"
4720     ar_o='$@'
4721 else
4722     arflags="rc"
4723     ar_o='$@'
4724 fi
4725
4726 add_cflags $extra_cflags
4727 add_cxxflags $extra_cxxflags
4728 add_objcflags $extra_objcflags
4729 add_asflags $extra_cflags
4730
4731 if test -n "$sysroot"; then
4732     case "$cc_type" in
4733         gcc|llvm_gcc|clang)
4734             add_cppflags --sysroot="$sysroot"
4735             add_ldflags --sysroot="$sysroot"
4736         ;;
4737     esac
4738 fi
4739
4740 if test "$cpu" = host; then
4741     enabled cross_compile &&
4742         die "--cpu=host makes no sense when cross-compiling."
4743
4744     case "$cc_type" in
4745         gcc|llvm_gcc)
4746             check_native(){
4747                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4748                 sed -n "/cc1.*$1=/{
4749                             s/.*$1=\\([^ ]*\\).*/\\1/
4750                             p
4751                             q
4752                         }" $TMPE
4753             }
4754             cpu=$(check_native -march || check_native -mcpu)
4755         ;;
4756         clang)
4757             check_native(){
4758                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4759                 sed -n "/cc1.*-target-cpu /{
4760                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4761                             p
4762                             q
4763                         }" $TMPE
4764             }
4765             cpu=$(check_native -march)
4766         ;;
4767     esac
4768
4769     test "${cpu:-host}" = host &&
4770         die "--cpu=host not supported with compiler $cc"
4771 fi
4772
4773 # Deal with common $arch aliases
4774 case "$arch" in
4775     aarch64|arm64)
4776         arch="aarch64"
4777     ;;
4778     arm*|iPad*|iPhone*)
4779         arch="arm"
4780     ;;
4781     mips*|IP*)
4782         case "$arch" in
4783         *el)
4784             add_cppflags -EL
4785             add_ldflags -EL
4786         ;;
4787         *eb)
4788             add_cppflags -EB
4789             add_ldflags -EB
4790         ;;
4791         esac
4792         arch="mips"
4793     ;;
4794     parisc*|hppa*)
4795         arch="parisc"
4796     ;;
4797     "Power Macintosh"|ppc*|powerpc*)
4798         arch="ppc"
4799     ;;
4800     s390|s390x)
4801         arch="s390"
4802     ;;
4803     sh4|sh)
4804         arch="sh4"
4805     ;;
4806     sun4*|sparc*)
4807         arch="sparc"
4808     ;;
4809     tilegx|tile-gx)
4810         arch="tilegx"
4811     ;;
4812     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4813         arch="x86"
4814     ;;
4815 esac
4816
4817 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4818 enable $arch
4819
4820 # Add processor-specific flags
4821 if enabled aarch64; then
4822
4823     case $cpu in
4824         armv*)
4825             cpuflags="-march=$cpu"
4826         ;;
4827         *)
4828             cpuflags="-mcpu=$cpu"
4829         ;;
4830     esac
4831
4832 elif enabled alpha; then
4833
4834     cpuflags="-mcpu=$cpu"
4835
4836 elif enabled arm; then
4837
4838     check_arm_arch() {
4839         test_cpp_condition stddef.h \
4840             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4841             $cpuflags
4842     }
4843
4844     probe_arm_arch() {
4845         if   check_arm_arch 4;        then echo armv4
4846         elif check_arm_arch 4T;       then echo armv4t
4847         elif check_arm_arch 5;        then echo armv5
4848         elif check_arm_arch 5E;       then echo armv5e
4849         elif check_arm_arch 5T;       then echo armv5t
4850         elif check_arm_arch 5TE;      then echo armv5te
4851         elif check_arm_arch 5TEJ;     then echo armv5te
4852         elif check_arm_arch 6;        then echo armv6
4853         elif check_arm_arch 6J;       then echo armv6j
4854         elif check_arm_arch 6K;       then echo armv6k
4855         elif check_arm_arch 6Z;       then echo armv6z
4856         elif check_arm_arch 6KZ;      then echo armv6zk
4857         elif check_arm_arch 6ZK;      then echo armv6zk
4858         elif check_arm_arch 6T2;      then echo armv6t2
4859         elif check_arm_arch 7;        then echo armv7
4860         elif check_arm_arch 7A  7_A;  then echo armv7-a
4861         elif check_arm_arch 7S;       then echo armv7-a
4862         elif check_arm_arch 7R  7_R;  then echo armv7-r
4863         elif check_arm_arch 7M  7_M;  then echo armv7-m
4864         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4865         elif check_arm_arch 8A  8_A;  then echo armv8-a
4866         fi
4867     }
4868
4869     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4870
4871     case $cpu in
4872         armv*)
4873             cpuflags="-march=$cpu"
4874             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4875         ;;
4876         *)
4877             cpuflags="-mcpu=$cpu"
4878             case $cpu in
4879                 cortex-a*)                               subarch=armv7a  ;;
4880                 cortex-r*)                               subarch=armv7r  ;;
4881                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4882                 arm11*)                                  subarch=armv6   ;;
4883                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4884                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4885                 *)                             subarch=$(probe_arm_arch) ;;
4886             esac
4887         ;;
4888     esac
4889
4890     case "$subarch" in
4891         armv5t*)    enable fast_clz                ;;
4892         armv[6-8]*)
4893             enable fast_clz
4894             disabled fast_unaligned || enable fast_unaligned
4895             ;;
4896     esac
4897
4898 elif enabled avr32; then
4899
4900     case $cpu in
4901         ap7[02]0[0-2])
4902             subarch="avr32_ap"
4903             cpuflags="-mpart=$cpu"
4904         ;;
4905         ap)
4906             subarch="avr32_ap"
4907             cpuflags="-march=$cpu"
4908         ;;
4909         uc3[ab]*)
4910             subarch="avr32_uc"
4911             cpuflags="-mcpu=$cpu"
4912         ;;
4913         uc)
4914             subarch="avr32_uc"
4915             cpuflags="-march=$cpu"
4916         ;;
4917     esac
4918
4919 elif enabled bfin; then
4920
4921     cpuflags="-mcpu=$cpu"
4922
4923 elif enabled mips; then
4924
4925     cpuflags="-march=$cpu"
4926
4927     if [ "$cpu" != "generic" ]; then
4928         disable mips32r2
4929         disable mips32r5
4930         disable mips64r2
4931         disable mips32r6
4932         disable mips64r6
4933         disable loongson2
4934         disable loongson3
4935
4936         case $cpu in
4937             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4938                 enable mips32r2
4939                 disable msa
4940             ;;
4941             p5600|i6400|p6600)
4942                 disable mipsdsp
4943                 disable mipsdspr2
4944             ;;
4945             loongson*)
4946                 enable loongson2
4947                 enable loongson3
4948                 enable local_aligned
4949                 enable simd_align_16
4950                 enable fast_64bit
4951                 enable fast_clz
4952                 enable fast_cmov
4953                 enable fast_unaligned
4954                 disable aligned_stack
4955                 disable mipsdsp
4956                 disable mipsdspr2
4957                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4958                 if [ $cc == gcc ]; then
4959                     gcc_version=$(gcc -dumpversion)
4960                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4961                         expensive_optimization_flag=""
4962                     else
4963                         expensive_optimization_flag="-fno-expensive-optimizations"
4964                     fi
4965                 fi
4966                 case $cpu in
4967                     loongson3*)
4968                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4969                     ;;
4970                     loongson2e)
4971                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4972                     ;;
4973                     loongson2f)
4974                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4975                     ;;
4976                 esac
4977             ;;
4978             *)
4979                 # Unknown CPU. Disable everything.
4980                 warn "unknown CPU. Disabling all MIPS optimizations."
4981                 disable mipsfpu
4982                 disable mipsdsp
4983                 disable mipsdspr2
4984                 disable msa
4985                 disable mmi
4986             ;;
4987         esac
4988
4989         case $cpu in
4990             24kc)
4991                 disable mipsfpu
4992                 disable mipsdsp
4993                 disable mipsdspr2
4994             ;;
4995             24kf*)
4996                 disable mipsdsp
4997                 disable mipsdspr2
4998             ;;
4999             24kec|34kc|1004kc)
5000                 disable mipsfpu
5001                 disable mipsdspr2
5002             ;;
5003             24kef*|34kf*|1004kf*)
5004                 disable mipsdspr2
5005             ;;
5006             74kc)
5007                 disable mipsfpu
5008             ;;
5009             p5600)
5010                 enable mips32r5
5011                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
5012             ;;
5013             i6400)
5014                 enable mips64r6
5015                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5016             ;;
5017             p6600)
5018                 enable mips64r6
5019                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5020             ;;
5021         esac
5022     else
5023         # We do not disable anything. Is up to the user to disable the unwanted features.
5024         warn 'generic cpu selected'
5025     fi
5026
5027 elif enabled ppc; then
5028
5029     disable ldbrx
5030
5031     case $(tolower $cpu) in
5032         601|ppc601|powerpc601)
5033             cpuflags="-mcpu=601"
5034             disable altivec
5035         ;;
5036         603*|ppc603*|powerpc603*)
5037             cpuflags="-mcpu=603"
5038             disable altivec
5039         ;;
5040         604*|ppc604*|powerpc604*)
5041             cpuflags="-mcpu=604"
5042             disable altivec
5043         ;;
5044         g3|75*|ppc75*|powerpc75*)
5045             cpuflags="-mcpu=750"
5046             disable altivec
5047         ;;
5048         g4|745*|ppc745*|powerpc745*)
5049             cpuflags="-mcpu=7450"
5050             disable vsx
5051         ;;
5052         74*|ppc74*|powerpc74*)
5053             cpuflags="-mcpu=7400"
5054             disable vsx
5055         ;;
5056         g5|970|ppc970|powerpc970)
5057             cpuflags="-mcpu=970"
5058             disable vsx
5059         ;;
5060         power[3-6]*)
5061             cpuflags="-mcpu=$cpu"
5062             disable vsx
5063         ;;
5064         power[7-8]*)
5065             cpuflags="-mcpu=$cpu"
5066         ;;
5067         cell)
5068             cpuflags="-mcpu=cell"
5069             enable ldbrx
5070             disable vsx
5071         ;;
5072         e500mc)
5073             cpuflags="-mcpu=e500mc"
5074             disable altivec
5075         ;;
5076         e500v2)
5077             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5078             disable altivec
5079             disable dcbzl
5080         ;;
5081         e500)
5082             cpuflags="-mcpu=8540 -mhard-float"
5083             disable altivec
5084             disable dcbzl
5085         ;;
5086     esac
5087
5088 elif enabled sparc; then
5089
5090     case $cpu in
5091         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5092             cpuflags="-mcpu=$cpu"
5093         ;;
5094         ultrasparc*|niagara[234])
5095             cpuflags="-mcpu=$cpu"
5096         ;;
5097     esac
5098
5099 elif enabled x86; then
5100
5101     case $cpu in
5102         i[345]86|pentium)
5103             cpuflags="-march=$cpu"
5104             disable i686
5105             disable mmx
5106         ;;
5107         # targets that do NOT support nopl and conditional mov (cmov)
5108         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5109             cpuflags="-march=$cpu"
5110             disable i686
5111         ;;
5112         # targets that do support nopl and conditional mov (cmov)
5113         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5114         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5115         |amdfam10|barcelona|b[dt]ver*|znver*)
5116             cpuflags="-march=$cpu"
5117             enable i686
5118             enable fast_cmov
5119         ;;
5120         # targets that do support conditional mov but on which it's slow
5121         pentium4|pentium4m|prescott|nocona)
5122             cpuflags="-march=$cpu"
5123             enable i686
5124             disable fast_cmov
5125         ;;
5126     esac
5127
5128 fi
5129
5130 if [ "$cpu" != generic ]; then
5131     add_cflags  $cpuflags
5132     add_asflags $cpuflags
5133     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5134 fi
5135
5136 # compiler sanity check
5137 test_exec <<EOF
5138 int main(void){ return 0; }
5139 EOF
5140 if test "$?" != 0; then
5141     echo "$cc is unable to create an executable file."
5142     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5143         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5144         echo "Only do this if you know what cross compiling means."
5145     fi
5146     die "C compiler test failed."
5147 fi
5148
5149 add_cppflags -D_ISOC99_SOURCE
5150 add_cxxflags -D__STDC_CONSTANT_MACROS
5151 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5152
5153 # some compilers silently accept -std=c11, so we also need to check that the
5154 # version macro is defined properly
5155 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5156     add_cflags -std=c11 ||
5157     check_cflags -std=c99
5158
5159 check_cppflags -D_FILE_OFFSET_BITS=64
5160 check_cppflags -D_LARGEFILE_SOURCE
5161
5162 add_host_cppflags -D_ISOC99_SOURCE
5163 check_host_cflags -std=c99
5164 check_host_cflags -Wall
5165 check_host_cflags $host_cflags_speed
5166
5167 check_64bit(){
5168     arch32=$1
5169     arch64=$2
5170     expr=${3:-'sizeof(void *) > 4'}
5171     test_code cc "" "int test[2*($expr) - 1]" &&
5172         subarch=$arch64 || subarch=$arch32
5173     enable $subarch
5174 }
5175
5176 case "$arch" in
5177     aarch64|alpha|ia64)
5178         enabled shared && enable_weak pic
5179     ;;
5180     mips)
5181         check_64bit mips mips64 '_MIPS_SIM > 1'
5182         enabled shared && enable_weak pic
5183     ;;
5184     parisc)
5185         check_64bit parisc parisc64
5186         enabled shared && enable_weak pic
5187     ;;
5188     ppc)
5189         check_64bit ppc ppc64
5190         enabled shared && enable_weak pic
5191     ;;
5192     s390)
5193         check_64bit s390 s390x
5194         enabled shared && enable_weak pic
5195     ;;
5196     sparc)
5197         check_64bit sparc sparc64
5198         enabled shared && enable_weak pic
5199     ;;
5200     x86)
5201         check_64bit x86_32 x86_64
5202         # Treat x32 as x64 for now. Note it also needs pic if shared
5203         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5204             subarch=x86_64 && enable x86_64 && disable x86_32
5205         if enabled x86_64; then
5206             enabled shared && enable_weak pic
5207             objformat=elf64
5208         fi
5209     ;;
5210 esac
5211
5212 # OS specific
5213 case $target_os in
5214     aix)
5215         SHFLAGS=-shared
5216         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5217         enabled shared && add_ldflags -Wl,-brtl
5218         arflags='-Xany -r -c'
5219         striptype=""
5220         ;;
5221     android)
5222         disable symver
5223         enable section_data_rel_ro
5224         add_cflags -fPIE
5225         add_ldexeflags -fPIE -pie
5226         SLIB_INSTALL_NAME='$(SLIBNAME)'
5227         SLIB_INSTALL_LINKS=
5228         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5229         ;;
5230     haiku)
5231         prefix_default="/boot/common"
5232         network_extralibs="-lnetwork"
5233         host_extralibs=
5234         ;;
5235     sunos)
5236         SHFLAGS='-shared -Wl,-h,$$(@F)'
5237         enabled x86 && append SHFLAGS -mimpure-text
5238         network_extralibs="-lsocket -lnsl"
5239         add_cppflags -D__EXTENSIONS__
5240         # When using suncc to build, the Solaris linker will mark
5241         # an executable with each instruction set encountered by
5242         # the Solaris assembler.  As our libraries contain their own
5243         # guards for processor-specific code, instead suppress
5244         # generation of the HWCAPS ELF section on Solaris x86 only.
5245         enabled_all suncc x86 &&
5246             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5247             add_ldflags -Wl,-M,mapfile
5248         nm_default='nm -P -g'
5249         striptype=""
5250         version_script='-M'
5251         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5252         ;;
5253     netbsd)
5254         disable symver
5255         oss_indev_extralibs="-lossaudio"
5256         oss_outdev_extralibs="-lossaudio"
5257         enabled gcc || check_ldflags -Wl,-zmuldefs
5258         ;;
5259     openbsd|bitrig)
5260         disable symver
5261         striptype=""
5262         SHFLAGS='-shared'
5263         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5264         SLIB_INSTALL_LINKS=
5265         oss_indev_extralibs="-lossaudio"
5266         oss_outdev_extralibs="-lossaudio"
5267         ;;
5268     dragonfly)
5269         disable symver
5270         ;;
5271     freebsd)
5272         ;;
5273     bsd/os)
5274         add_extralibs -lpoll -lgnugetopt
5275         strip="strip -d"
5276         ;;
5277     darwin)
5278         enabled ppc && add_asflags -force_cpusubtype_ALL
5279         install_name_dir_default='$(SHLIBDIR)'
5280         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5281         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5282         strip="${strip} -x"
5283         add_ldflags -Wl,-dynamic,-search_paths_first
5284         check_cflags -Werror=partial-availability
5285         SLIBSUF=".dylib"
5286         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5287         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5288         enabled x86_64 && objformat="macho64" || objformat="macho32"
5289         enabled_any pic shared x86_64 ||
5290             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5291         check_headers dispatch/dispatch.h &&
5292             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5293         if test -n "$sysroot"; then
5294             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5295             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5296         fi
5297         version_script='-exported_symbols_list'
5298         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5299         ;;
5300     msys*)
5301         die "Native MSYS builds are discouraged, please use the MINGW environment."
5302         ;;
5303     mingw32*|mingw64*)
5304         target_os=mingw32
5305         LIBTARGET=i386
5306         if enabled x86_64; then
5307             LIBTARGET="i386:x86-64"
5308         elif enabled arm; then
5309             LIBTARGET="arm"
5310         elif enabled aarch64; then
5311             LIBTARGET="arm64"
5312         fi
5313         if enabled shared; then
5314             # Cannot build both shared and static libs when using dllimport.
5315             disable static
5316         fi
5317         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5318         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5319         shlibdir_default="$bindir_default"
5320         SLIBPREF=""
5321         SLIBSUF=".dll"
5322         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5323         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5324         if test_cmd lib.exe -list; then
5325             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5326             if enabled x86_64; then
5327                 LIBTARGET=x64
5328             fi
5329         else
5330             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5331         fi
5332         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5333         SLIB_INSTALL_LINKS=
5334         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5335         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5336         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5337         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5338         enabled x86_64 && objformat="win64" || objformat="win32"
5339         dlltool="${cross_prefix}dlltool"
5340         ranlib=:
5341         enable dos_paths
5342         check_ldflags -Wl,--nxcompat,--dynamicbase
5343         # Lets work around some stupidity in binutils.
5344         # ld will strip relocations from executables even though we need them
5345         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5346         # however ld then forgets what the entry point should be (oops) so we
5347         # have to manually (re)set it.
5348         if enabled x86_32; then
5349             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5350         elif enabled x86_64; then
5351             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5352             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5353             # Set image base >4GB for extra entropy with HEASLR
5354             add_ldexeflags -Wl,--image-base,0x140000000
5355             append SHFLAGS -Wl,--image-base,0x180000000
5356         fi
5357         ;;
5358     win32|win64)
5359         disable symver
5360         if enabled shared; then
5361             # Link to the import library instead of the normal static library
5362             # for shared libs.
5363             LD_LIB='%.lib'
5364             # Cannot build both shared and static libs with MSVC or icl.
5365             disable static
5366         fi
5367         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5368         shlibdir_default="$bindir_default"
5369         SLIBPREF=""
5370         SLIBSUF=".dll"
5371         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5372         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5373         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5374         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5375         SLIB_INSTALL_LINKS=
5376         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5377         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5378         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5379         enabled x86_64 && objformat="win64" || objformat="win32"
5380         ranlib=:
5381         enable dos_paths
5382         ;;
5383     cygwin*)
5384         target_os=cygwin
5385         shlibdir_default="$bindir_default"
5386         SLIBPREF="cyg"
5387         SLIBSUF=".dll"
5388         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5389         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5390         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5391         SLIB_INSTALL_LINKS=
5392         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5393         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5394         enabled x86_64 && objformat="win64" || objformat="win32"
5395         enable dos_paths
5396         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5397         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5398         ;;
5399     *-dos|freedos|opendos)
5400         network_extralibs="-lsocket"
5401         objformat="coff"
5402         enable dos_paths
5403         ;;
5404     linux)
5405         enable section_data_rel_ro
5406         enabled_any arm aarch64 && enable_weak linux_perf
5407         ;;
5408     irix*)
5409         target_os=irix
5410         ranlib="echo ignoring ranlib"
5411         ;;
5412     os/2*)
5413         strip="lxlite -CS"
5414         striptype=""
5415         objformat="aout"
5416         add_cppflags -D_GNU_SOURCE
5417         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5418         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5419         LIBSUF="_s.a"
5420         SLIBPREF=""
5421         SLIBSUF=".dll"
5422         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5423         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5424         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5425             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5426             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5427             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5428             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5429         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5430             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5431         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5432         SLIB_INSTALL_LINKS=
5433         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5434         enable dos_paths
5435         enable_weak os2threads
5436         ;;
5437     gnu/kfreebsd)
5438         add_cppflags -D_BSD_SOURCE
5439         ;;
5440     gnu)
5441         ;;
5442     qnx)
5443         add_cppflags -D_QNX_SOURCE
5444         network_extralibs="-lsocket"
5445         ;;
5446     symbian)
5447         SLIBSUF=".dll"
5448         enable dos_paths
5449         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5450         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5451         add_ldflags -Wl,--target1-abs,--no-undefined \
5452                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5453                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5454         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5455                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5456                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5457         ;;
5458     minix)
5459         ;;
5460     none)
5461         ;;
5462     *)
5463         die "Unknown OS '$target_os'."
5464         ;;
5465 esac
5466
5467 # test if creating links works
5468 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5469 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5470 mkdir "$link_dest"
5471 $ln_s "$link_dest" "$link_name"
5472 touch "$link_dest/test_file"
5473 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5474     # create link to source path
5475     [ -e src ] && rm src
5476     $ln_s "$source_path" src
5477     source_link=src
5478 else
5479     # creating directory links doesn't work
5480     # fall back to using the full source path
5481     source_link="$source_path"
5482 fi
5483 # cleanup
5484 rm -r "$link_dest"
5485 rm -r "$link_name"
5486
5487 # determine libc flavour
5488
5489 probe_libc(){
5490     pfx=$1
5491     pfx_no_=${pfx%_}
5492     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5493     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5494         eval ${pfx}libc_type=uclibc
5495         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5496     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5497         eval ${pfx}libc_type=glibc
5498         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5499     # MinGW headers can be installed on Cygwin, so check for newlib first.
5500     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5501         eval ${pfx}libc_type=newlib
5502         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5503     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5504     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5505         eval ${pfx}libc_type=mingw64
5506         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5507             add_compat msvcrt/snprintf.o
5508             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5509         fi
5510         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5511         eval test \$${pfx_no_}cc_type = "gcc" &&
5512             add_${pfx}cppflags -D__printf__=__gnu_printf__
5513         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5514             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5515         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5516     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5517          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5518         eval ${pfx}libc_type=mingw32
5519         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5520             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5521             die "ERROR: MinGW32 runtime version must be >= 3.15."
5522         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5523         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5524             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5525         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5526             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5527         eval test \$${pfx_no_}cc_type = "gcc" &&
5528             add_${pfx}cppflags -D__printf__=__gnu_printf__
5529         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5530     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5531         eval ${pfx}libc_type=msvcrt
5532         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5533             if [ "$pfx" = host_ ]; then
5534                 add_host_cppflags -Dsnprintf=_snprintf
5535             else
5536                 add_compat strtod.o strtod=avpriv_strtod
5537                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5538                                              _snprintf=avpriv_snprintf  \
5539                                              vsnprintf=avpriv_vsnprintf
5540             fi
5541         fi
5542         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5543         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5544         # 0x601 by default unless something else is set by the user.
5545         # This can easily lead to us detecting functions only present
5546         # in such new versions and producing binaries requiring windows 7.0.
5547         # Therefore explicitly set the default to Vista unless the user has
5548         # set something else on the command line.
5549         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5550         # family. For these cases, configure is free to use any functions
5551         # found in the SDK headers by default. (Alternatively, we could force
5552         # _WIN32_WINNT to 0x0602 in that case.)
5553         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5554             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5555 #ifdef WINAPI_FAMILY
5556 #include <winapifamily.h>
5557 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5558 #error not desktop
5559 #endif
5560 #endif
5561 EOF
5562         if [ "$pfx" = "" ]; then
5563             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5564             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5565         fi
5566     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5567         eval ${pfx}libc_type=klibc
5568     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5569         eval ${pfx}libc_type=bionic
5570     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5571         eval ${pfx}libc_type=solaris
5572         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5573     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5574         eval ${pfx}libc_type=djgpp
5575         add_cppflags -U__STRICT_ANSI__
5576         add_cflags "-include $source_path/compat/djgpp/math.h"
5577         add_compat djgpp/math.o
5578     fi
5579     test_${pfx}cc <<EOF
5580 #include <time.h>
5581 void *v = localtime_r;
5582 EOF
5583 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5584 #include <time.h>
5585 void *v = localtime_r;
5586 EOF
5587
5588     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5589 }
5590
5591 probe_libc
5592 probe_libc host_
5593
5594 # hacks for compiler/libc/os combinations
5595
5596 case $libc_type in
5597     bionic)
5598         add_compat strtod.o strtod=avpriv_strtod
5599         ;;
5600 esac
5601
5602 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5603     add_cppflags '-I\$(SRC_PATH)/compat/float'
5604
5605 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5606
5607 set_default libdir
5608 : ${shlibdir_default:="$libdir"}
5609 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5610
5611 set_default $PATHS_LIST
5612 set_default nm
5613
5614 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5615
5616 enable_weak_pic() {
5617     disabled pic && return
5618     enable pic
5619     add_cppflags -DPIC
5620     case "$target_os" in
5621     mingw*|cygwin*|win*)
5622         ;;
5623     *)
5624         add_cflags -fPIC
5625         add_asflags -fPIC
5626         ;;
5627     esac
5628 }
5629
5630 enabled pic && enable_weak_pic
5631
5632 test_cc <<EOF || die "Symbol mangling check failed."
5633 int ff_extern;
5634 EOF
5635 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5636 extern_prefix=${sym%%ff_extern*}
5637
5638 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5639
5640 for restrict_keyword in restrict __restrict__ __restrict ""; do
5641     test_code cc "" "char * $restrict_keyword p" && break
5642 done
5643
5644 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5645
5646 # The global variable ensures the bits appear unchanged in the object file.
5647 test_cc <<EOF || die "endian test failed"
5648 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5649 EOF
5650 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5651
5652 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5653
5654 if ! enabled ppc64 || enabled bigendian; then
5655     disable vsx
5656 fi
5657
5658 check_gas() {
5659     log "check_gas using '$as' as AS"
5660     # :vararg is used on aarch64, arm and ppc altivec
5661     check_as vararg "
5662 .macro m n, y:vararg=0
5663 \n: .int \y
5664 .endm
5665 m x" || return 1
5666     # .altmacro is only used in arm asm
5667     ! enabled arm || check_as gnu_as ".altmacro"
5668 }
5669
5670 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5671     nogas=:
5672     enabled_any arm aarch64 && nogas=die
5673     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5674     as_noop=-v
5675
5676     case $as_type in
5677         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5678         gcc)  gaspp_as_type=gas ;;
5679         *)    gaspp_as_type=$as_type ;;
5680     esac
5681
5682     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5683
5684     test "${as#*gas-preprocessor.pl}" != "$as" ||
5685     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5686         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5687
5688     if ! check_gas ; then
5689         as=${gas:=$as}
5690         check_gas || \
5691             $nogas "GNU assembler not found, install/update gas-preprocessor"
5692     fi
5693
5694     check_as as_func ".func test
5695                       .endfunc"
5696 fi
5697
5698 check_inline_asm inline_asm_labels '"1:\n"'
5699
5700 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5701
5702 if enabled aarch64; then
5703     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5704     # internal assembler in clang 3.3 does not support this instruction
5705     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5706     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5707
5708     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5709
5710 elif enabled alpha; then
5711
5712     check_cflags -mieee
5713
5714 elif enabled arm; then
5715
5716     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5717     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5718 float func(float a, float b){ return a+b; }
5719 EOF
5720     enabled thumb && check_cflags -mthumb || check_cflags -marm
5721
5722     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5723         :
5724     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5725         :
5726     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5727         case "${cross_prefix:-$cc}" in
5728             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5729             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5730 __asm__ (".eabi_attribute 28, 1");
5731 int main(void) { return 0; }
5732 EOF
5733         esac
5734         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5735     fi
5736
5737     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5738     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5739     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5740     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5741     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5742     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5743     enabled setend  && check_insn setend  'setend be'
5744
5745     [ $target_os = linux ] || [ $target_os = android ] ||
5746         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5747             $ARCH_EXT_LIST_ARM
5748
5749     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5750
5751     check_as as_arch_directive ".arch armv7-a"
5752     check_as as_dn_directive   "ra .dn d0.i16"
5753     check_as as_fpu_directive  ".fpu neon"
5754
5755     # llvm's integrated assembler supports .object_arch from llvm 3.5
5756     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5757         check_as as_object_arch ".object_arch armv4"
5758
5759     # MS armasm fails to assemble our PIC constructs
5760     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5761
5762 elif enabled mips; then
5763
5764     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5765     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5766     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5767
5768     # Enable minimum ISA based on selected options
5769     if enabled mips64; then
5770         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5771         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5772         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5773     else
5774         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5775         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5776         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5777         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5778     fi
5779
5780     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5781     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5782     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5783     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5784     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5785     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5786
5787     if enabled bigendian && enabled msa; then
5788         disable msa
5789     fi
5790
5791 elif enabled parisc; then
5792
5793     if enabled gcc; then
5794         case $($cc -dumpversion) in
5795             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5796         esac
5797     fi
5798
5799 elif enabled ppc; then
5800
5801     enable local_aligned
5802
5803     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5804     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5805     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5806     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5807
5808     if enabled altivec; then
5809         check_cflags -maltivec -mabi=altivec
5810
5811         # check if our compiler supports Motorola AltiVec C API
5812         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5813                                     vector signed int v2 = (vector signed int) { 1 };
5814                                     v1 = vec_add(v1, v2);"
5815
5816         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5817     fi
5818
5819     if enabled vsx; then
5820         check_cflags -mvsx &&
5821         check_cc vsx altivec.h "int v[4] = { 0 };
5822                                 vector signed int v1 = vec_vsx_ld(0, v);"
5823     fi
5824
5825     if enabled power8; then
5826         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5827     fi
5828
5829 elif enabled x86; then
5830
5831     check_builtin rdtsc    intrin.h   "__rdtsc()"
5832     check_builtin mm_empty mmintrin.h "_mm_empty()"
5833
5834     enable local_aligned
5835
5836     # check whether EBP is available on x86
5837     # As 'i' is stored on the stack, this program will crash
5838     # if the base pointer is used to access it because the
5839     # base pointer is cleared in the inline assembly code.
5840     check_exec_crash <<EOF && enable ebp_available
5841 volatile int i=0;
5842 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5843 return i;
5844 EOF
5845
5846     # check whether EBX is available on x86
5847     check_inline_asm ebx_available '""::"b"(0)' &&
5848         check_inline_asm ebx_available '"":::"%ebx"'
5849
5850     # check whether xmm clobbers are supported
5851     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5852
5853     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5854         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5855
5856     # check whether binutils is new enough to compile SSSE3/MMXEXT
5857     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5858     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5859
5860     probe_x86asm(){
5861         x86asmexe_probe=$1
5862         if test_cmd $x86asmexe_probe -v; then
5863             x86asmexe=$x86asmexe_probe
5864             x86asm_type=nasm
5865             x86asm_debug="-g -F dwarf"
5866             X86ASMDEP=
5867             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5868         elif test_cmd $x86asmexe_probe --version; then
5869             x86asmexe=$x86asmexe_probe
5870             x86asm_type=yasm
5871             x86asm_debug="-g dwarf2"
5872             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5873             X86ASM_DEPFLAGS=
5874         fi
5875         check_x86asm x86asm "movbe ecx, [5]"
5876     }
5877
5878     if ! disabled_any asm mmx x86asm; then
5879         disable x86asm
5880         for program in $x86asmexe nasm yasm; do
5881             probe_x86asm $program && break
5882         done
5883         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5884         X86ASMFLAGS="-f $objformat"
5885         enabled pic               && append X86ASMFLAGS "-DPIC"
5886         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5887         case "$objformat" in
5888             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5889         esac
5890
5891         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5892         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5893         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5894         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5895         check_x86asm cpunop          "CPU amdnop"
5896     fi
5897
5898     case "$cpu" in
5899         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5900             disable fast_clz
5901         ;;
5902     esac
5903
5904 fi
5905
5906 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5907
5908 check_ldflags -Wl,--as-needed
5909 check_ldflags -Wl,-z,noexecstack
5910
5911 if ! disabled network; then
5912     check_func getaddrinfo $network_extralibs
5913     check_func inet_aton $network_extralibs
5914
5915     check_type netdb.h "struct addrinfo"
5916     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5917     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5918     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5919     check_type poll.h "struct pollfd"
5920     check_type netinet/sctp.h "struct sctp_event_subscribe"
5921     check_struct "sys/socket.h" "struct msghdr" msg_flags
5922     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5923     check_type netinet/in.h "struct sockaddr_in6"
5924     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5925     check_type "sys/types.h sys/socket.h" socklen_t
5926
5927     # Prefer arpa/inet.h over winsock2
5928     if check_headers arpa/inet.h ; then
5929         check_func closesocket
5930     elif check_headers winsock2.h ; then
5931         check_func_headers winsock2.h closesocket -lws2 &&
5932             network_extralibs="-lws2" ||
5933         { check_func_headers winsock2.h closesocket -lws2_32 &&
5934             network_extralibs="-lws2_32"; } || disable winsock2_h network
5935         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5936
5937         check_type ws2tcpip.h socklen_t
5938         check_type ws2tcpip.h "struct addrinfo"
5939         check_type ws2tcpip.h "struct group_source_req"
5940         check_type ws2tcpip.h "struct ip_mreq_source"
5941         check_type ws2tcpip.h "struct ipv6_mreq"
5942         check_type winsock2.h "struct pollfd"
5943         check_struct winsock2.h "struct sockaddr" sa_len
5944         check_type ws2tcpip.h "struct sockaddr_in6"
5945         check_type ws2tcpip.h "struct sockaddr_storage"
5946     else
5947         disable network
5948     fi
5949 fi
5950
5951 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5952 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5953 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5954 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5955 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5956 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5957 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5958
5959 case "$custom_allocator" in
5960     jemalloc)
5961         # jemalloc by default does not use a prefix
5962         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5963     ;;
5964     tcmalloc)
5965         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
5966         malloc_prefix=tc_
5967     ;;
5968 esac
5969
5970 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5971 check_func  ${malloc_prefix}memalign            && enable memalign
5972 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5973
5974 check_func  access
5975 check_func_headers stdlib.h arc4random
5976 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
5977 check_func  fcntl
5978 check_func  fork
5979 check_func  gethrtime
5980 check_func  getopt
5981 check_func  getrusage
5982 check_func  gettimeofday
5983 check_func  isatty
5984 check_func  mkstemp
5985 check_func  mmap
5986 check_func  mprotect
5987 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5988 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
5989 check_func  sched_getaffinity
5990 check_func  setrlimit
5991 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5992 check_func  strerror_r
5993 check_func  sysconf
5994 check_func  sysctl
5995 check_func  usleep
5996
5997 check_func_headers conio.h kbhit
5998 check_func_headers io.h setmode
5999 check_func_headers lzo/lzo1x.h lzo1x_999_compress
6000 check_func_headers mach/mach_time.h mach_absolute_time
6001 check_func_headers stdlib.h getenv
6002 check_func_headers sys/stat.h lstat
6003
6004 check_func_headers windows.h GetProcessAffinityMask
6005 check_func_headers windows.h GetProcessTimes
6006 check_func_headers windows.h GetSystemTimeAsFileTime
6007 check_func_headers windows.h LoadLibrary
6008 check_func_headers windows.h MapViewOfFile
6009 check_func_headers windows.h PeekNamedPipe
6010 check_func_headers windows.h SetConsoleTextAttribute
6011 check_func_headers windows.h SetConsoleCtrlHandler
6012 check_func_headers windows.h Sleep
6013 check_func_headers windows.h VirtualAlloc
6014 check_func_headers glob.h glob
6015 enabled xlib &&
6016     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
6017
6018 check_headers direct.h
6019 check_headers dirent.h
6020 check_headers dxgidebug.h
6021 check_headers dxva.h
6022 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
6023 check_headers io.h
6024 check_headers linux/perf_event.h
6025 check_headers libcrystalhd/libcrystalhd_if.h
6026 check_headers malloc.h
6027 check_headers net/udplite.h
6028 check_headers poll.h
6029 check_headers sys/param.h
6030 check_headers sys/resource.h
6031 check_headers sys/select.h
6032 check_headers sys/time.h
6033 check_headers sys/un.h
6034 check_headers termios.h
6035 check_headers unistd.h
6036 check_headers valgrind/valgrind.h
6037 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6038 check_headers windows.h
6039 check_headers X11/extensions/XvMClib.h
6040 check_headers asm/types.h
6041
6042 # it seems there are versions of clang in some distros that try to use the
6043 # gcc headers, which explodes for stdatomic
6044 # so we also check that atomics actually work here
6045 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6046
6047 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6048 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6049     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6050 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6051 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6052 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6053
6054 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6055 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6056 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6057
6058 enabled appkit       && check_apple_framework AppKit
6059 enabled audiotoolbox && check_apple_framework AudioToolbox
6060 enabled avfoundation && check_apple_framework AVFoundation
6061 enabled coreimage    && check_apple_framework CoreImage
6062 enabled videotoolbox && check_apple_framework VideoToolbox
6063
6064 check_apple_framework CoreFoundation
6065 check_apple_framework CoreMedia
6066 check_apple_framework CoreVideo
6067
6068 enabled avfoundation && {
6069     disable coregraphics applicationservices
6070     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6071     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6072
6073 enabled videotoolbox && {
6074     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6075     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6076     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6077     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
6078     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
6079     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
6080 }
6081
6082 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6083
6084 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6085 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6086 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6087 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6088 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6089
6090 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6091
6092 if [ -z "$nvccflags" ]; then
6093     nvccflags=$nvccflags_default
6094 fi
6095
6096 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6097     nvccflags="$nvccflags -m64"
6098 else
6099     nvccflags="$nvccflags -m32"
6100 fi
6101
6102 if enabled cuda_nvcc; then
6103     nvccflags="$nvccflags -ptx"
6104 else
6105     nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
6106     check_nvcc cuda_llvm
6107 fi
6108
6109 if ! disabled ffnvcodec; then
6110     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6111     check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.0" "$ffnv_hdr_list" "" || \
6112       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.8 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6113       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.9 ffnvcodec < 8.2" "$ffnv_hdr_list" "" || \
6114       check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.9 ffnvcodec < 8.1" "$ffnv_hdr_list" ""
6115 fi
6116
6117 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6118
6119 if ! disabled w32threads && ! enabled pthreads; then
6120     check_func_headers "windows.h process.h" _beginthreadex &&
6121         check_type "windows.h" CONDITION_VARIABLE &&
6122         check_type "windows.h" INIT_ONCE &&
6123         enable w32threads || disable w32threads
6124     if ! enabled w32threads && enabled winrt; then
6125         check_func_headers "windows.h" CreateThread &&
6126             enable w32threads || disable w32threads
6127     fi
6128 fi
6129
6130 # check for some common methods of building with pthread support
6131 # do this before the optional library checks as some of them require pthreads
6132 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6133     if check_lib pthreads pthread.h pthread_join   -pthread &&
6134        check_lib pthreads pthread.h pthread_create -pthread; then
6135         add_cflags -pthread
6136     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6137          check_lib pthreads pthread.h pthread_create -pthreads; then
6138         add_cflags -pthreads
6139     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6140          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6141         add_cflags -ldl -pthread
6142     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6143          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6144         :
6145     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6146          check_lib pthreads pthread.h pthread_create -lpthread; then
6147         :
6148     elif check_func pthread_join && check_func pthread_create; then
6149         enable pthreads
6150     fi
6151     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6152
6153     if enabled pthreads; then
6154         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6155         check_func pthread_cancel $pthreads_extralibs
6156     fi
6157 fi
6158
6159 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6160                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6161 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6162 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6163
6164 # On some systems dynamic loading requires no extra linker flags
6165 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6166
6167 check_lib libm math.h sin -lm
6168
6169 atan2f_args=2
6170 copysign_args=2
6171 hypot_args=2
6172 ldexpf_args=2
6173 powf_args=2
6174
6175 for func in $MATH_FUNCS; do
6176     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6177 done
6178
6179 for func in $COMPLEX_FUNCS; do
6180     eval check_complexfunc $func \${${func}_args:-1}
6181 done
6182
6183 # these are off by default, so fail if requested and not available
6184 enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
6185 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6186 enabled decklink          && { require_headers DeckLinkAPI.h &&
6187                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6188 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6189 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6190 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6191 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6192 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6193 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6194 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6195                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6196                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6197 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6198 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6199 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6200 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6201 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6202 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6203                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6204                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6205 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6206 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6207 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d/dav1d.h" dav1d_version
6208 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6209 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6210 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6211 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6212                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6213                                  warn "using libfdk without pkg-config"; } }
6214 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"
6215 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6216 enabled fontconfig        && enable libfontconfig
6217 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6218 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6219 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6220 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6221                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6222 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6223                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6224                                done || die "ERROR: libgsm not found"; }
6225 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6226 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6227 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6228 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6229 # While it may appear that require is being used as a pkg-config
6230 # fallback for libmfx, it is actually being used to detect a different
6231 # installation route altogether.  If libmfx is installed via the Intel
6232 # Media SDK or Intel Media Server Studio, these don't come with
6233 # pkg-config support.  Instead, users should make sure that the build
6234 # can find the libraries and headers through other means.
6235 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6236                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6237 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6238 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6239 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_load ||
6240                                require libmysofa mysofa.h mysofa_load -lmysofa $zlib_extralibs; }
6241 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6242                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6243                                die "ERROR: libnpp not found"; }
6244 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6245 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6246 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6247                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6248                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6249                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6250 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6251 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6252                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6253 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6254 enabled libopus           && {
6255     enabled libopus_decoder && {
6256         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6257     }
6258     enabled libopus_encoder && {
6259         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6260     }
6261 }
6262 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6263 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6264 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6265 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6266 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6267 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6268                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6269 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6270 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6271 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6272 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6273 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6274 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6275 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6276 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6277 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6278 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6279                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6280                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6281 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6282 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6283 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6284 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6285 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6286                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6287
6288 enabled libvpx            && {
6289     enabled libvpx_vp8_decoder && {
6290         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6291             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"
6292     }
6293     enabled libvpx_vp8_encoder && {
6294         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6295             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"
6296     }
6297     enabled libvpx_vp9_decoder && {
6298         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6299             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"
6300     }
6301     enabled libvpx_vp9_encoder && {
6302         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6303             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"
6304     }
6305     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6306         die "libvpx enabled but no supported decoders found"
6307     fi
6308 }
6309
6310 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6311 enabled libwebp           && {
6312     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6313     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6314 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6315                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6316                                  warn "using libx264 without pkg-config"; } } &&
6317                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6318                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6319 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6320                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6321 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6322 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6323 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6324 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6325 enabled libzmq            && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new
6326 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6327                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6328                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6329 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6330 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6331                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6332                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6333                                die "ERROR: mbedTLS not found"; }
6334 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6335 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6336                                { ! enabled cross_compile &&
6337                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6338                                  add_ldflags -L/opt/vc/lib/ &&
6339                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6340                                die "ERROR: mmal not found" &&
6341                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6342 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6343                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6344                                die "ERROR: openal not found"; } &&
6345                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6346                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6347 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6348                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6349                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6350                                die "ERROR: opencl not found"; } &&
6351                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6352                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6353                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6354 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6355                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6356                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6357                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6358                                die "ERROR: opengl not found."
6359                              }
6360 enabled omx               && require_headers OMX_Core.h
6361 enabled omx_rpi           && { check_headers OMX_Core.h ||
6362                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_headers OMX_Core.h ; } ||
6363                                die "ERROR: OpenMAX IL headers not found"; } && enable omx
6364 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6365                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6366                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6367                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6368                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6369                                die "ERROR: openssl not found"; }
6370 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6371 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6372                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6373                                { enabled libdrm ||
6374                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6375                              }
6376 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6377
6378
6379 if enabled gcrypt; then
6380     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6381     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6382         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6383         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6384         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6385             die "ERROR: gcrypt not found"
6386         add_cflags $gcrypt_cflags
6387     else
6388         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6389     fi
6390 fi
6391
6392 if enabled sdl2; then
6393     SDL2_CONFIG="${cross_prefix}sdl2-config"
6394     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6395     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6396         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6397         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6398         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6399         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6400         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6401             enable sdl2
6402     fi
6403     if test $target_os = "mingw32"; then
6404         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6405     fi
6406 fi
6407
6408 if enabled decklink; then
6409     case $target_os in
6410         mingw32*|mingw64*|win32|win64)
6411             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6412             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6413             ;;
6414     esac
6415 fi
6416
6417 enabled securetransport &&
6418     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6419     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6420         disable securetransport
6421
6422 enabled securetransport &&
6423     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6424
6425 enabled schannel &&
6426     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6427     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6428     schannel_extralibs="-lsecur32" ||
6429         disable schannel
6430
6431 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6432 enabled makeinfo \
6433     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6434     && enable makeinfo_html || disable makeinfo_html
6435 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6436 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6437 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6438 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6439
6440 # check V4L2 codecs available in the API
6441 check_headers linux/fb.h
6442 check_headers linux/videodev2.h
6443 test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6444 check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6445 check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6446 check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6447 check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6448 check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6449 check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6450 check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6451 check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6452 check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6453 check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6454
6455 check_headers sys/videoio.h
6456 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6457
6458 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6459 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6460 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6461 # w32api 3.12 had it defined wrong
6462 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6463
6464 check_type "dshow.h" IBaseFilter
6465
6466 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6467 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6468     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6469     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6470     check_headers "dev/ic/bt8xx.h"
6471
6472 if check_struct sys/soundcard.h audio_buf_info bytes; then
6473     enable_sanitized sys/soundcard.h
6474 else
6475     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6476     #include <sys/soundcard.h>
6477     audio_buf_info abc;
6478 EOF
6479 fi
6480
6481 enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6482     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
6483
6484 enabled libjack &&
6485     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6486
6487 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6488
6489 if enabled libcdio; then
6490     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6491     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6492     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6493     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6494     die "ERROR: No usable libcdio/cdparanoia found"
6495 fi
6496
6497 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6498     disable libxcb_shm libxcb_shape libxcb_xfixes
6499
6500 if enabled libxcb; then
6501     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6502     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6503     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6504 fi
6505
6506 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6507
6508 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6509 # the desktop api partition
6510 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6511 #ifdef WINAPI_FAMILY
6512 #include <winapifamily.h>
6513 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6514 #error desktop, not uwp
6515 #else
6516 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6517 #endif
6518 #else
6519 #error no family set
6520 #endif
6521 EOF
6522
6523 enabled vaapi &&
6524     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6525
6526 if enabled vaapi; then
6527     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6528
6529     if enabled xlib; then
6530         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6531     fi
6532
6533     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6534
6535     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6536     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6537     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6538     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6539     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6540     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6541     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6542 fi
6543
6544 if enabled_all opencl libdrm ; then
6545     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6546         enable opencl_drm_beignet
6547     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6548         enable opencl_drm_arm
6549 fi
6550
6551 if enabled_all opencl vaapi ; then
6552     if enabled opencl_drm_beignet ; then
6553         enable opencl_vaapi_beignet
6554     else
6555         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6556             enable opencl_vaapi_intel_media
6557     fi
6558 fi
6559
6560 if enabled_all opencl dxva2 ; then
6561     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6562         enable opencl_dxva2
6563 fi
6564
6565 if enabled_all opencl d3d11va ; then
6566     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6567         enable opencl_d3d11
6568 fi
6569
6570 enabled vdpau &&
6571     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6572
6573 enabled vdpau &&
6574     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6575
6576 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6577
6578 if enabled x86; then
6579     case $target_os in
6580         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6581             ;;
6582         *)
6583             disable ffnvcodec cuvid nvdec nvenc
6584             ;;
6585     esac
6586 elif enabled ppc64 && ! enabled bigendian; then
6587     case $target_os in
6588         linux)
6589             ;;
6590         *)
6591             disable ffnvcodec cuvid nvdec nvenc
6592             ;;
6593     esac
6594 else
6595     disable ffnvcodec cuvid nvdec nvenc
6596 fi
6597
6598 enabled ffnvcodec && enable cuda
6599
6600 enabled nvenc &&
6601     test_cc -I$source_path <<EOF || disable nvenc
6602 #include <ffnvcodec/nvEncodeAPI.h>
6603 NV_ENCODE_API_FUNCTION_LIST flist;
6604 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6605 int main(void) { return 0; }
6606 EOF
6607
6608 enabled amf &&
6609     check_cpp_condition amf "AMF/core/Version.h" \
6610         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"
6611
6612 # Funny iconv installations are not unusual, so check it after all flags have been set
6613 if enabled libc_iconv; then
6614     check_func_headers iconv.h iconv
6615 elif enabled iconv; then
6616     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6617 fi
6618
6619 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6620
6621 # add some useful compiler flags if supported
6622 check_cflags -Wdeclaration-after-statement
6623 check_cflags -Wall
6624 check_cflags -Wdisabled-optimization
6625 check_cflags -Wpointer-arith
6626 check_cflags -Wredundant-decls
6627 check_cflags -Wwrite-strings
6628 check_cflags -Wtype-limits
6629 check_cflags -Wundef
6630 check_cflags -Wmissing-prototypes
6631 check_cflags -Wno-pointer-to-int-cast
6632 check_cflags -Wstrict-prototypes
6633 check_cflags -Wempty-body
6634
6635 if enabled extra_warnings; then
6636     check_cflags -Wcast-qual
6637     check_cflags -Wextra
6638     check_cflags -Wpedantic
6639 fi
6640
6641 check_disable_warning(){
6642     warning_flag=-W${1#-Wno-}
6643     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6644 }
6645
6646 test_cflags -Werror=unused-command-line-argument &&
6647     append unknown_warning_flags "-Werror=unused-command-line-argument"
6648 test_cflags -Werror=unknown-warning-option &&
6649     append unknown_warning_flags "-Werror=unknown-warning-option"
6650
6651 check_disable_warning -Wno-parentheses
6652 check_disable_warning -Wno-switch
6653 check_disable_warning -Wno-format-zero-length
6654 check_disable_warning -Wno-pointer-sign
6655 check_disable_warning -Wno-unused-const-variable
6656 check_disable_warning -Wno-bool-operation
6657 check_disable_warning -Wno-char-subscripts
6658
6659 check_disable_warning_headers(){
6660     warning_flag=-W${1#-Wno-}
6661     test_cflags $warning_flag && add_cflags_headers $1
6662 }
6663
6664 check_disable_warning_headers -Wno-deprecated-declarations
6665 check_disable_warning_headers -Wno-unused-variable
6666
6667 test_cc <<EOF && enable blocks_extension
6668 void (^block)(void);
6669 EOF
6670
6671 # add some linker flags
6672 check_ldflags -Wl,--warn-common
6673 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6674 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6675 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6676
6677 # add some strip flags
6678 check_stripflags -x
6679
6680 enabled neon_clobber_test &&
6681     check_ldflags -Wl,--wrap,avcodec_open2              \
6682                   -Wl,--wrap,avcodec_decode_audio4      \
6683                   -Wl,--wrap,avcodec_decode_video2      \
6684                   -Wl,--wrap,avcodec_decode_subtitle2   \
6685                   -Wl,--wrap,avcodec_encode_audio2      \
6686                   -Wl,--wrap,avcodec_encode_video2      \
6687                   -Wl,--wrap,avcodec_encode_subtitle    \
6688                   -Wl,--wrap,avcodec_send_packet        \
6689                   -Wl,--wrap,avcodec_receive_packet     \
6690                   -Wl,--wrap,avcodec_send_frame         \
6691                   -Wl,--wrap,avcodec_receive_frame      \
6692                   -Wl,--wrap,swr_convert                \
6693                   -Wl,--wrap,avresample_convert ||
6694     disable neon_clobber_test
6695
6696 enabled xmm_clobber_test &&
6697     check_ldflags -Wl,--wrap,avcodec_open2              \
6698                   -Wl,--wrap,avcodec_decode_audio4      \
6699                   -Wl,--wrap,avcodec_decode_video2      \
6700                   -Wl,--wrap,avcodec_decode_subtitle2   \
6701                   -Wl,--wrap,avcodec_encode_audio2      \
6702                   -Wl,--wrap,avcodec_encode_video2      \
6703                   -Wl,--wrap,avcodec_encode_subtitle    \
6704                   -Wl,--wrap,avcodec_send_packet        \
6705                   -Wl,--wrap,avcodec_receive_packet     \
6706                   -Wl,--wrap,avcodec_send_frame         \
6707                   -Wl,--wrap,avcodec_receive_frame      \
6708                   -Wl,--wrap,swr_convert                \
6709                   -Wl,--wrap,avresample_convert         \
6710                   -Wl,--wrap,sws_scale ||
6711     disable xmm_clobber_test
6712
6713 check_ld "cc" proper_dce <<EOF
6714 extern const int array[512];
6715 static inline int func(void) { return array[0]; }
6716 int main(void) { return 0; }
6717 EOF
6718
6719 if enabled proper_dce; then
6720     echo "X { local: *; };" > $TMPV
6721     if test_ldflags -Wl,${version_script},$TMPV; then
6722         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6723         quotes='""'
6724         test_cc <<EOF && enable symver_asm_label
6725 void ff_foo(void) __asm__ ("av_foo@VERSION");
6726 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6727 EOF
6728         test_cc <<EOF && enable symver_gnu_asm
6729 __asm__(".symver ff_foo,av_foo@VERSION");
6730 void ff_foo(void) {}
6731 EOF
6732     fi
6733 fi
6734
6735 if [ -z "$optflags" ]; then
6736     if enabled small; then
6737         optflags=$cflags_size
6738     elif enabled optimizations; then
6739         optflags=$cflags_speed
6740     else
6741         optflags=$cflags_noopt
6742     fi
6743 fi
6744
6745 check_optflags(){
6746     check_cflags "$@"
6747     enabled lto && check_ldflags "$@"
6748 }
6749
6750 check_optflags $optflags
6751 check_optflags -fno-math-errno
6752 check_optflags -fno-signed-zeros
6753
6754 if enabled lto; then
6755     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6756     check_cflags  -flto
6757     check_ldflags -flto $cpuflags
6758     disable inline_asm_direct_symbol_refs
6759 fi
6760
6761 enabled ftrapv && check_cflags -ftrapv
6762
6763 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6764 int x;
6765 EOF
6766
6767
6768 if enabled icc; then
6769     # Just warnings, no remarks
6770     check_cflags -w1
6771     # -wd: Disable following warnings
6772     # 144, 167, 556: -Wno-pointer-sign
6773     # 188: enumerated type mixed with another type
6774     # 1292: attribute "foo" ignored
6775     # 1419: external declaration in primary source file
6776     # 10006: ignoring unknown option -fno-signed-zeros
6777     # 10148: ignoring unknown option -Wno-parentheses
6778     # 10156: ignoring option '-W'; no argument required
6779     # 13200: No EMMS instruction before call to function
6780     # 13203: No EMMS instruction before return from function
6781     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6782     # 11030: Warning unknown option --as-needed
6783     # 10156: ignoring option '-export'; no argument required
6784     check_ldflags -wd10156,11030
6785     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6786     enable ebp_available
6787     # The test above does not test linking
6788     enabled lto && disable symver_asm_label
6789     if enabled x86_32; then
6790         icc_version=$($cc -dumpversion)
6791         test ${icc_version%%.*} -ge 11 &&
6792             check_cflags -falign-stack=maintain-16-byte ||
6793             disable aligned_stack
6794     fi
6795 elif enabled gcc; then
6796     check_optflags -fno-tree-vectorize
6797     check_cflags -Werror=format-security
6798     check_cflags -Werror=implicit-function-declaration
6799     check_cflags -Werror=missing-prototypes
6800     check_cflags -Werror=return-type
6801     check_cflags -Werror=vla
6802     check_cflags -Wformat
6803     check_cflags -fdiagnostics-color=auto
6804     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6805     if enabled x86_32; then
6806         case $target_os in
6807         *bsd*)
6808             # BSDs don't guarantee a 16 byte aligned stack, but we can
6809             # request GCC to try to maintain 16 byte alignment throughout
6810             # function calls. Library entry points that might call assembly
6811             # functions align the stack. (The parameter means 2^4 bytes.)
6812             check_cflags -mpreferred-stack-boundary=4
6813             ;;
6814         esac
6815     fi
6816 elif enabled llvm_gcc; then
6817     check_cflags -mllvm -stack-alignment=16
6818 elif enabled clang; then
6819     if enabled x86_32; then
6820         # Clang doesn't support maintaining alignment without assuming the
6821         # same alignment in every function. If 16 byte alignment would be
6822         # enabled, one would also have to either add attribute_align_arg on
6823         # every single entry point into the libraries or enable -mstackrealign
6824         # (doing stack realignment in every single function).
6825         case $target_os in
6826         mingw32|win32|*bsd*)
6827             disable aligned_stack
6828             ;;
6829         *)
6830             check_cflags -mllvm -stack-alignment=16
6831             check_cflags -mstack-alignment=16
6832             ;;
6833         esac
6834     else
6835         check_cflags -mllvm -stack-alignment=16
6836         check_cflags -mstack-alignment=16
6837     fi
6838     check_cflags -Qunused-arguments
6839     check_cflags -Werror=implicit-function-declaration
6840     check_cflags -Werror=missing-prototypes
6841     check_cflags -Werror=return-type
6842 elif enabled cparser; then
6843     add_cflags -Wno-missing-variable-declarations
6844     add_cflags -Wno-empty-statement
6845 elif enabled armcc; then
6846     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6847     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6848     # 2523: use of inline assembly is deprecated
6849     add_cflags -W${armcc_opt},--diag_suppress=2523
6850     add_cflags -W${armcc_opt},--diag_suppress=1207
6851     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6852     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6853     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6854     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6855 elif enabled pathscale; then
6856     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6857     disable inline_asm
6858 elif enabled_any msvc icl; then
6859     enabled x86_32 && disable aligned_stack
6860     enabled_all x86_32 debug && add_cflags -Oy-
6861     enabled debug && add_ldflags -debug
6862     enable pragma_deprecated
6863     if enabled icl; then
6864         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6865         # (correctly) on icl 13.x.
6866         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6867             add_cflags -Qansi-alias
6868         # Some inline asm is not compilable in debug
6869         if enabled debug; then
6870             disable ebp_available
6871             disable ebx_available
6872         fi
6873     fi
6874     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6875     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6876     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6877     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6878     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6879     # MSVC 2013 and newer can handle it fine.
6880     # If this declspec fails, force including stdlib.h before the restrict redefinition
6881     # happens in config.h.
6882     if [ $restrict_keyword != restrict ]; then
6883         test_cc <<EOF || add_cflags -FIstdlib.h
6884 __declspec($restrict_keyword) void *foo(int);
6885 EOF
6886     fi
6887     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6888     # Issue has been fixed in MSVC v19.00.24218.
6889     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6890         check_cflags -d2SSAOptimizer-
6891     # enable utf-8 source processing on VS2015 U2 and newer
6892     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6893         add_cflags -utf-8
6894 fi
6895
6896 for pfx in "" host_; do
6897     varname=${pfx%_}cc_type
6898     eval "type=\$$varname"
6899     if [ "$type" = "msvc" ]; then
6900         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6901 static inline int foo(int a) { return a; }
6902 EOF
6903     fi
6904 done
6905
6906 case $as_type in
6907     clang)
6908         add_asflags -Qunused-arguments
6909     ;;
6910 esac
6911
6912 case $ld_type in
6913     clang)
6914         check_ldflags -Qunused-arguments
6915     ;;
6916 esac
6917
6918 enable frame_thread_encoder
6919
6920 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6921
6922 check_deps $CONFIG_LIST       \
6923            $CONFIG_EXTRA      \
6924            $HAVE_LIST         \
6925            $ALL_COMPONENTS    \
6926
6927 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"
6928 enabled avresample && warn "Building with deprecated library libavresample"
6929
6930 case $target_os in
6931 haiku)
6932     disable memalign
6933     disable posix_memalign
6934     ;;
6935 *-dos|freedos|opendos)
6936     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6937         disable memalign
6938     fi
6939     ;;
6940 esac
6941
6942 flatten_extralibs(){
6943     nested_entries=
6944     list_name=$1
6945     eval list=\$${1}
6946     for entry in $list; do
6947         entry_copy=$entry
6948         resolve entry_copy
6949         flat_entries=
6950         for e in $entry_copy; do
6951             case $e in
6952                 *_extralibs) nested_entries="$nested_entries$e ";;
6953                           *) flat_entries="$flat_entries$e ";;
6954             esac
6955         done
6956         eval $entry="\$flat_entries"
6957     done
6958     append $list_name "$nested_entries"
6959
6960     resolve nested_entries
6961     if test -n "$(filter '*_extralibs' $nested_entries)"; then
6962         flatten_extralibs $list_name
6963     fi
6964 }
6965
6966 flatten_extralibs_wrapper(){
6967     list_name=$1
6968     flatten_extralibs $list_name
6969     unique $list_name
6970     resolve $list_name
6971     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
6972     eval printf \''%s'\' \""\$$list_name"\"
6973 }
6974
6975 for linkunit in $LIBRARY_LIST; do
6976     unset current_extralibs
6977     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
6978     for comp in ${components}; do
6979         enabled $comp || continue
6980         comp_extralibs="${comp}_extralibs"
6981         append current_extralibs $comp_extralibs
6982     done
6983     eval prepend ${linkunit}_extralibs $current_extralibs
6984 done
6985
6986 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
6987     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
6988 done
6989
6990 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
6991
6992 for thread in $THREADS_LIST; do
6993     if enabled $thread; then
6994         test -n "$thread_type" &&
6995             die "ERROR: Only one thread type must be selected." ||
6996             thread_type="$thread"
6997     fi
6998 done
6999
7000 if disabled stdatomic; then
7001     if enabled atomics_gcc; then
7002         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
7003     elif enabled atomics_win32; then
7004         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
7005     elif enabled atomics_suncc; then
7006         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
7007     elif enabled pthreads; then
7008         add_compat atomics/pthread/stdatomic.o
7009         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
7010     else
7011         enabled threads && die "Threading is enabled, but no atomics are available"
7012         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
7013     fi
7014 fi
7015
7016 # Check if requested libraries were found.
7017 for lib in $AUTODETECT_LIBS; do
7018     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
7019 done
7020
7021 enabled zlib && add_cppflags -DZLIB_CONST
7022
7023 # conditional library dependencies, in any order
7024 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
7025 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
7026 enabled afir_filter         && prepend avfilter_deps "avcodec"
7027 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
7028 enabled aresample_filter    && prepend avfilter_deps "swresample"
7029 enabled atempo_filter       && prepend avfilter_deps "avcodec"
7030 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7031 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7032 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7033 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7034 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7035 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7036 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7037 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7038 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7039 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7040 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7041 enabled pan_filter          && prepend avfilter_deps "swresample"
7042 enabled pp_filter           && prepend avfilter_deps "postproc"
7043 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7044 enabled resample_filter && prepend avfilter_deps "avresample"
7045 enabled sab_filter          && prepend avfilter_deps "swscale"
7046 enabled scale_filter    && prepend avfilter_deps "swscale"
7047 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7048 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7049 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7050 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7051 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7052 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7053 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7054 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7055 enabled spp_filter          && prepend avfilter_deps "avcodec"
7056 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7057 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7058 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7059 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7060
7061 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7062
7063 #FIXME
7064 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7065     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7066
7067 enabled opus_decoder    && prepend avcodec_deps "swresample"
7068
7069 # reorder the items at var $1 to align with the items order at var $2 .
7070 # die if an item at $1 is not at $2 .
7071 reorder_by(){
7072     eval rb_in=\$$1
7073     eval rb_ordered=\$$2
7074
7075     for rb in $rb_in; do
7076         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7077     done
7078
7079     rb_out=
7080     for rb in $rb_ordered; do
7081         is_in $rb $rb_in && rb_out="$rb_out$rb "
7082     done
7083     eval $1=\$rb_out
7084 }
7085
7086 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7087 # within a set of N items, N expansions are enough to expose a cycle.
7088 expand_deps(){
7089     unique ${1}_deps  # required for the early break test.
7090     for dummy in $LIBRARY_LIST; do  # N iteratios
7091         eval deps=\$${1}_deps
7092         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7093         unique ${1}_deps
7094         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7095     done
7096
7097     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7098     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7099 }
7100
7101 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7102 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7103
7104 map 'expand_deps $v' $LIBRARY_LIST
7105
7106 if test "$quiet" != "yes"; then
7107
7108 echo "install prefix            $prefix"
7109 echo "source path               $source_path"
7110 echo "C compiler                $cc"
7111 echo "C library                 $libc_type"
7112 if test "$host_cc" != "$cc"; then
7113     echo "host C compiler           $host_cc"
7114     echo "host C library            $host_libc_type"
7115 fi
7116 echo "ARCH                      $arch ($cpu)"
7117 if test "$build_suffix" != ""; then
7118     echo "build suffix              $build_suffix"
7119 fi
7120 if test "$progs_suffix" != ""; then
7121     echo "progs suffix              $progs_suffix"
7122 fi
7123 if test "$extra_version" != ""; then
7124     echo "version string suffix     $extra_version"
7125 fi
7126 echo "big-endian                ${bigendian-no}"
7127 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7128 if enabled x86; then
7129     echo "standalone assembly       ${x86asm-no}"
7130     echo "x86 assembler             ${x86asmexe}"
7131     echo "MMX enabled               ${mmx-no}"
7132     echo "MMXEXT enabled            ${mmxext-no}"
7133     echo "3DNow! enabled            ${amd3dnow-no}"
7134     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7135     echo "SSE enabled               ${sse-no}"
7136     echo "SSSE3 enabled             ${ssse3-no}"
7137     echo "AESNI enabled             ${aesni-no}"
7138     echo "AVX enabled               ${avx-no}"
7139     echo "AVX2 enabled              ${avx2-no}"
7140     echo "AVX-512 enabled           ${avx512-no}"
7141     echo "XOP enabled               ${xop-no}"
7142     echo "FMA3 enabled              ${fma3-no}"
7143     echo "FMA4 enabled              ${fma4-no}"
7144     echo "i686 features enabled     ${i686-no}"
7145     echo "CMOV is fast              ${fast_cmov-no}"
7146     echo "EBX available             ${ebx_available-no}"
7147     echo "EBP available             ${ebp_available-no}"
7148 fi
7149 if enabled aarch64; then
7150     echo "NEON enabled              ${neon-no}"
7151     echo "VFP enabled               ${vfp-no}"
7152 fi
7153 if enabled arm; then
7154     echo "ARMv5TE enabled           ${armv5te-no}"
7155     echo "ARMv6 enabled             ${armv6-no}"
7156     echo "ARMv6T2 enabled           ${armv6t2-no}"
7157     echo "VFP enabled               ${vfp-no}"
7158     echo "NEON enabled              ${neon-no}"
7159     echo "THUMB enabled             ${thumb-no}"
7160 fi
7161 if enabled mips; then
7162     echo "MIPS FPU enabled          ${mipsfpu-no}"
7163     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7164     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7165     echo "MIPS MSA enabled          ${msa-no}"
7166     echo "MIPS MSA2 enabled         ${msa2-no}"
7167     echo "LOONGSON MMI enabled      ${mmi-no}"
7168 fi
7169 if enabled ppc; then
7170     echo "AltiVec enabled           ${altivec-no}"
7171     echo "VSX enabled               ${vsx-no}"
7172     echo "POWER8 enabled            ${power8-no}"
7173     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7174     echo "dcbzl available           ${dcbzl-no}"
7175 fi
7176 echo "debug symbols             ${debug-no}"
7177 echo "strip symbols             ${stripping-no}"
7178 echo "optimize for size         ${small-no}"
7179 echo "optimizations             ${optimizations-no}"
7180 echo "static                    ${static-no}"
7181 echo "shared                    ${shared-no}"
7182 echo "postprocessing support    ${postproc-no}"
7183 echo "network support           ${network-no}"
7184 echo "threading support         ${thread_type-no}"
7185 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7186 echo "texi2html enabled         ${texi2html-no}"
7187 echo "perl enabled              ${perl-no}"
7188 echo "pod2man enabled           ${pod2man-no}"
7189 echo "makeinfo enabled          ${makeinfo-no}"
7190 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7191 test -n "$random_seed" &&
7192     echo "random seed               ${random_seed}"
7193 echo
7194
7195 echo "External libraries:"
7196 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7197 echo
7198
7199 echo "External libraries providing hardware acceleration:"
7200 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7201 echo
7202
7203 echo "Libraries:"
7204 print_enabled '' $LIBRARY_LIST | print_in_columns
7205 echo
7206
7207 echo "Programs:"
7208 print_enabled '' $PROGRAM_LIST | print_in_columns
7209 echo
7210
7211 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7212     echo "Enabled ${type}s:"
7213     eval list=\$$(toupper $type)_LIST
7214     print_enabled '_*' $list | print_in_columns
7215     echo
7216 done
7217
7218 if test -n "$ignore_tests"; then
7219     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7220     echo "Ignored FATE tests:"
7221     echo $ignore_tests | print_in_columns
7222     echo
7223 fi
7224
7225 echo "License: $license"
7226
7227 fi # test "$quiet" != "yes"
7228
7229 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7230     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7231         if disabled $cfg; then
7232             varname=${cfg}_disable_reason
7233             eval "warn \"Disabled $cfg because \$$varname\""
7234         fi
7235     done
7236 fi
7237
7238 if test -n "$WARNINGS"; then
7239     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7240     enabled fatal_warnings && exit 1
7241 fi
7242
7243 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7244
7245 esc(){
7246     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7247 }
7248
7249 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7250
7251 enabled stripping || strip="echo skipping strip"
7252 enabled stripping || striptype=""
7253
7254 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7255
7256 cat > ffbuild/config.mak <<EOF
7257 # Automatically generated by configure - do not modify!
7258 ifndef FFMPEG_CONFIG_MAK
7259 FFMPEG_CONFIG_MAK=1
7260 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7261 prefix=$prefix
7262 LIBDIR=\$(DESTDIR)$libdir
7263 SHLIBDIR=\$(DESTDIR)$shlibdir
7264 INCDIR=\$(DESTDIR)$incdir
7265 BINDIR=\$(DESTDIR)$bindir
7266 DATADIR=\$(DESTDIR)$datadir
7267 DOCDIR=\$(DESTDIR)$docdir
7268 MANDIR=\$(DESTDIR)$mandir
7269 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7270 INSTALL_NAME_DIR=$install_name_dir
7271 SRC_PATH=$source_path
7272 SRC_LINK=$source_link
7273 ifndef MAIN_MAKEFILE
7274 SRC_PATH:=\$(SRC_PATH:.%=..%)
7275 endif
7276 CC_IDENT=$cc_ident
7277 ARCH=$arch
7278 INTRINSICS=$intrinsics
7279 EXTERN_PREFIX=$extern_prefix
7280 CC=$cc
7281 CXX=$cxx
7282 AS=$as
7283 OBJCC=$objcc
7284 LD=$ld
7285 DEPCC=$dep_cc
7286 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7287 DEPAS=$as
7288 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7289 X86ASM=$x86asmexe
7290 DEPX86ASM=$x86asmexe
7291 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7292 AR=$ar
7293 ARFLAGS=$arflags
7294 AR_O=$ar_o
7295 AR_CMD=$ar
7296 NM_CMD=$nm
7297 RANLIB=$ranlib
7298 STRIP=$strip
7299 STRIPTYPE=$striptype
7300 NVCC=$nvcc
7301 CP=cp -p
7302 LN_S=$ln_s
7303 CPPFLAGS=$CPPFLAGS
7304 CFLAGS=$CFLAGS
7305 CXXFLAGS=$CXXFLAGS
7306 OBJCFLAGS=$OBJCFLAGS
7307 ASFLAGS=$ASFLAGS
7308 NVCCFLAGS=$nvccflags
7309 AS_C=$AS_C
7310 AS_O=$AS_O
7311 OBJCC_C=$OBJCC_C
7312 OBJCC_E=$OBJCC_E
7313 OBJCC_O=$OBJCC_O
7314 CC_C=$CC_C
7315 CC_E=$CC_E
7316 CC_O=$CC_O
7317 CXX_C=$CXX_C
7318 CXX_O=$CXX_O
7319 NVCC_C=$NVCC_C
7320 NVCC_O=$NVCC_O
7321 LD_O=$LD_O
7322 X86ASM_O=$X86ASM_O
7323 LD_LIB=$LD_LIB
7324 LD_PATH=$LD_PATH
7325 DLLTOOL=$dlltool
7326 WINDRES=$windres
7327 DEPWINDRES=$dep_cc
7328 DOXYGEN=$doxygen
7329 LDFLAGS=$LDFLAGS
7330 LDEXEFLAGS=$LDEXEFLAGS
7331 LDSOFLAGS=$LDSOFLAGS
7332 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7333 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7334 X86ASMFLAGS=$X86ASMFLAGS
7335 BUILDSUF=$build_suffix
7336 PROGSSUF=$progs_suffix
7337 FULLNAME=$FULLNAME
7338 LIBPREF=$LIBPREF
7339 LIBSUF=$LIBSUF
7340 LIBNAME=$LIBNAME
7341 SLIBPREF=$SLIBPREF
7342 SLIBSUF=$SLIBSUF
7343 EXESUF=$EXESUF
7344 EXTRA_VERSION=$extra_version
7345 CCDEP=$CCDEP
7346 CXXDEP=$CXXDEP
7347 CCDEP_FLAGS=$CCDEP_FLAGS
7348 ASDEP=$ASDEP
7349 ASDEP_FLAGS=$ASDEP_FLAGS
7350 X86ASMDEP=$X86ASMDEP
7351 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7352 CC_DEPFLAGS=$CC_DEPFLAGS
7353 AS_DEPFLAGS=$AS_DEPFLAGS
7354 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7355 HOSTCC=$host_cc
7356 HOSTLD=$host_ld
7357 HOSTCFLAGS=$host_cflags
7358 HOSTCPPFLAGS=$host_cppflags
7359 HOSTEXESUF=$HOSTEXESUF
7360 HOSTLDFLAGS=$host_ldflags
7361 HOSTEXTRALIBS=$host_extralibs
7362 DEPHOSTCC=$host_cc
7363 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7364 HOSTCCDEP=$HOSTCCDEP
7365 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7366 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7367 HOSTCC_C=$HOSTCC_C
7368 HOSTCC_O=$HOSTCC_O
7369 HOSTLD_O=$HOSTLD_O
7370 TARGET_EXEC=$target_exec $target_exec_args
7371 TARGET_PATH=$target_path
7372 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7373 CFLAGS-ffplay=${sdl2_cflags}
7374 CFLAGS_HEADERS=$CFLAGS_HEADERS
7375 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7376 EXTRALIBS=$extralibs
7377 COMPAT_OBJS=$compat_objs
7378 INSTALL=$install
7379 LIBTARGET=${LIBTARGET}
7380 SLIBNAME=${SLIBNAME}
7381 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7382 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7383 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7384 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7385 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7386 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7387 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7388 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7389 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7390 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7391 NOREDZONE_FLAGS=$noredzone_flags
7392 LIBFUZZER_PATH=$libfuzzer_path
7393 IGNORE_TESTS=$ignore_tests
7394 EOF
7395
7396 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7397
7398 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7399     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7400 done
7401
7402 cat > $TMPH <<EOF
7403 /* Automatically generated by configure - do not modify! */
7404 #ifndef FFMPEG_CONFIG_H
7405 #define FFMPEG_CONFIG_H
7406 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7407 #define FFMPEG_LICENSE "$(c_escape $license)"
7408 #define CONFIG_THIS_YEAR 2019
7409 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7410 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7411 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7412 #define av_restrict $restrict_keyword
7413 #define EXTERN_PREFIX "${extern_prefix}"
7414 #define EXTERN_ASM ${extern_prefix}
7415 #define BUILDSUF "$build_suffix"
7416 #define SLIBSUF "$SLIBSUF"
7417 #define HAVE_MMX2 HAVE_MMXEXT
7418 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7419 EOF
7420
7421 test -n "$assert_level" &&
7422     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7423
7424 test -n "$malloc_prefix" &&
7425     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7426
7427 if enabled x86asm; then
7428     append config_files $TMPASM
7429     cat > $TMPASM <<EOF
7430 ; Automatically generated by configure - do not modify!
7431 EOF
7432 fi
7433
7434 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7435
7436
7437 mkdir -p doc
7438 mkdir -p tests
7439 mkdir -p tests/api
7440 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7441
7442 print_config ARCH_   "$config_files" $ARCH_LIST
7443 print_config HAVE_   "$config_files" $HAVE_LIST
7444 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7445                                      $CONFIG_EXTRA      \
7446                                      $ALL_COMPONENTS    \
7447
7448 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7449 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7450
7451 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7452 cp_if_changed $TMPH config.h
7453 touch ffbuild/.config
7454
7455 enabled x86asm && cp_if_changed $TMPASM config.asm
7456
7457 cat > $TMPH <<EOF
7458 /* Generated by ffmpeg configure */
7459 #ifndef AVUTIL_AVCONFIG_H
7460 #define AVUTIL_AVCONFIG_H
7461 EOF
7462
7463 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7464
7465 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7466
7467 cp_if_changed $TMPH libavutil/avconfig.h
7468
7469 # full_filter_name_foo=vf_foo
7470 # full_filter_name_bar=asrc_bar
7471 # ...
7472 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7473
7474 # generate the lists of enabled components
7475 print_enabled_components(){
7476     file=$1
7477     struct_name=$2
7478     name=$3
7479     shift 3
7480     echo "static const $struct_name * const $name[] = {" > $TMPH
7481     for c in $*; do
7482         if enabled $c; then
7483             case $name in
7484                 filter_list)
7485                     eval c=\$full_filter_name_${c%_filter}
7486                 ;;
7487                 indev_list)
7488                     c=${c%_indev}_demuxer
7489                 ;;
7490                 outdev_list)
7491                     c=${c%_outdev}_muxer
7492                 ;;
7493             esac
7494             printf "    &ff_%s,\n" $c >> $TMPH
7495         fi
7496     done
7497     if [ "$name" = "filter_list" ]; then
7498         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7499             printf "    &ff_%s,\n" $c >> $TMPH
7500         done
7501     fi
7502     echo "    NULL };" >> $TMPH
7503     cp_if_changed $TMPH $file
7504 }
7505
7506 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7507 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7508 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7509 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7510 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7511 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7512 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7513 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7514 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7515
7516 # Settings for pkg-config files
7517
7518 cat > $TMPH <<EOF
7519 # Automatically generated by configure - do not modify!
7520 shared=$shared
7521 build_suffix=$build_suffix
7522 prefix=$prefix
7523 libdir=$libdir
7524 incdir=$incdir
7525 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7526 source_path=${source_path}
7527 LIBPREF=${LIBPREF}
7528 LIBSUF=${LIBSUF}
7529 extralibs_avutil="$avutil_extralibs"
7530 extralibs_avcodec="$avcodec_extralibs"
7531 extralibs_avformat="$avformat_extralibs"
7532 extralibs_avdevice="$avdevice_extralibs"
7533 extralibs_avfilter="$avfilter_extralibs"
7534 extralibs_avresample="$avresample_extralibs"
7535 extralibs_postproc="$postproc_extralibs"
7536 extralibs_swscale="$swscale_extralibs"
7537 extralibs_swresample="$swresample_extralibs"
7538 EOF
7539
7540 for lib in $LIBRARY_LIST; do
7541     lib_deps="$(eval echo \$${lib}_deps)"
7542     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7543 done
7544
7545 cp_if_changed $TMPH ffbuild/config.sh