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 acelp_kelvin_decoder_select="audiodsp"
2639 adpcm_g722_decoder_select="g722dsp"
2640 adpcm_g722_encoder_select="g722dsp"
2641 aic_decoder_select="golomb idctdsp"
2642 alac_encoder_select="lpc"
2643 als_decoder_select="bswapdsp"
2644 amrnb_decoder_select="lsp"
2645 amrwb_decoder_select="lsp"
2646 amv_decoder_select="sp5x_decoder exif"
2647 amv_encoder_select="jpegtables mpegvideoenc"
2648 ape_decoder_select="bswapdsp llauddsp"
2649 apng_decoder_deps="zlib"
2650 apng_encoder_deps="zlib"
2651 apng_encoder_select="llvidencdsp"
2652 aptx_decoder_select="audio_frame_queue"
2653 aptx_encoder_select="audio_frame_queue"
2654 aptx_hd_decoder_select="audio_frame_queue"
2655 aptx_hd_encoder_select="audio_frame_queue"
2656 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2657 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2658 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2659 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2660 atrac1_decoder_select="mdct sinewin"
2661 atrac3_decoder_select="mdct"
2662 atrac3al_decoder_select="mdct"
2663 atrac3p_decoder_select="mdct sinewin"
2664 atrac3pal_decoder_select="mdct sinewin"
2665 atrac9_decoder_select="mdct"
2666 avrn_decoder_select="exif jpegtables"
2667 bink_decoder_select="blockdsp hpeldsp"
2668 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2669 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2670 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2671 clearvideo_decoder_select="idctdsp"
2672 cllc_decoder_select="bswapdsp"
2673 comfortnoise_encoder_select="lpc"
2674 cook_decoder_select="audiodsp mdct sinewin"
2675 cscd_decoder_select="lzo"
2676 cscd_decoder_suggest="zlib"
2677 dca_decoder_select="mdct"
2678 dds_decoder_select="texturedsp"
2679 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2680 dnxhd_decoder_select="blockdsp idctdsp"
2681 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2682 dolby_e_decoder_select="mdct"
2683 dvvideo_decoder_select="dvprofile idctdsp"
2684 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2685 dxa_decoder_deps="zlib"
2686 dxv_decoder_select="lzf texturedsp"
2687 eac3_decoder_select="ac3_decoder"
2688 eac3_encoder_select="ac3_encoder"
2689 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2690 eatgq_decoder_select="aandcttables"
2691 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2692 exr_decoder_deps="zlib"
2693 ffv1_decoder_select="rangecoder"
2694 ffv1_encoder_select="rangecoder"
2695 ffvhuff_decoder_select="huffyuv_decoder"
2696 ffvhuff_encoder_select="huffyuv_encoder"
2697 fic_decoder_select="golomb"
2698 flac_decoder_select="flacdsp"
2699 flac_encoder_select="bswapdsp flacdsp lpc"
2700 flashsv2_decoder_deps="zlib"
2701 flashsv2_encoder_deps="zlib"
2702 flashsv_decoder_deps="zlib"
2703 flashsv_encoder_deps="zlib"
2704 flv_decoder_select="h263_decoder"
2705 flv_encoder_select="h263_encoder"
2706 fourxm_decoder_select="blockdsp bswapdsp"
2707 fraps_decoder_select="bswapdsp huffman"
2708 g2m_decoder_deps="zlib"
2709 g2m_decoder_select="blockdsp idctdsp jpegtables"
2710 g729_decoder_select="audiodsp"
2711 h261_decoder_select="mpegvideo"
2712 h261_encoder_select="mpegvideoenc"
2713 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2714 h263_encoder_select="h263dsp mpegvideoenc"
2715 h263i_decoder_select="h263_decoder"
2716 h263p_decoder_select="h263_decoder"
2717 h263p_encoder_select="h263_encoder"
2718 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2719 h264_decoder_suggest="error_resilience"
2720 hap_decoder_select="snappy texturedsp"
2721 hap_encoder_deps="libsnappy"
2722 hap_encoder_select="texturedspenc"
2723 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2724 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2725 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2726 hymt_decoder_select="huffyuv_decoder"
2727 iac_decoder_select="imc_decoder"
2728 imc_decoder_select="bswapdsp fft mdct sinewin"
2729 imm4_decoder_select="bswapdsp"
2730 imm5_decoder_select="h264_decoder hevc_decoder"
2731 indeo3_decoder_select="hpeldsp"
2732 indeo4_decoder_select="ividsp"
2733 indeo5_decoder_select="ividsp"
2734 interplay_video_decoder_select="hpeldsp"
2735 jpegls_decoder_select="mjpeg_decoder"
2736 jv_decoder_select="blockdsp"
2737 lagarith_decoder_select="llviddsp"
2738 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2739 lscr_decoder_deps="zlib"
2740 magicyuv_decoder_select="llviddsp"
2741 magicyuv_encoder_select="llvidencdsp"
2742 mdec_decoder_select="blockdsp bswapdsp idctdsp mpegvideo"
2743 metasound_decoder_select="lsp mdct sinewin"
2744 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2745 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2746 mjpeg_encoder_select="jpegtables mpegvideoenc"
2747 mjpegb_decoder_select="mjpeg_decoder"
2748 mlp_decoder_select="mlp_parser"
2749 mlp_encoder_select="lpc audio_frame_queue"
2750 motionpixels_decoder_select="bswapdsp"
2751 mp1_decoder_select="mpegaudio"
2752 mp1float_decoder_select="mpegaudio"
2753 mp2_decoder_select="mpegaudio"
2754 mp2float_decoder_select="mpegaudio"
2755 mp3_decoder_select="mpegaudio"
2756 mp3adu_decoder_select="mpegaudio"
2757 mp3adufloat_decoder_select="mpegaudio"
2758 mp3float_decoder_select="mpegaudio"
2759 mp3on4_decoder_select="mpegaudio"
2760 mp3on4float_decoder_select="mpegaudio"
2761 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2762 mpc8_decoder_select="mpegaudiodsp"
2763 mpegvideo_decoder_select="mpegvideo"
2764 mpeg1video_decoder_select="mpegvideo"
2765 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2766 mpeg2video_decoder_select="mpegvideo"
2767 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2768 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2769 mpeg4_encoder_select="h263_encoder"
2770 msa1_decoder_select="mss34dsp"
2771 mscc_decoder_deps="zlib"
2772 msmpeg4v1_decoder_select="h263_decoder"
2773 msmpeg4v2_decoder_select="h263_decoder"
2774 msmpeg4v2_encoder_select="h263_encoder"
2775 msmpeg4v3_decoder_select="h263_decoder"
2776 msmpeg4v3_encoder_select="h263_encoder"
2777 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2778 mts2_decoder_select="mss34dsp"
2779 mwsc_decoder_deps="zlib"
2780 mxpeg_decoder_select="mjpeg_decoder"
2781 nellymoser_decoder_select="mdct sinewin"
2782 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2783 nuv_decoder_select="idctdsp lzo"
2784 on2avc_decoder_select="mdct"
2785 opus_decoder_deps="swresample"
2786 opus_decoder_select="mdct15"
2787 opus_encoder_select="audio_frame_queue mdct15"
2788 png_decoder_deps="zlib"
2789 png_encoder_deps="zlib"
2790 png_encoder_select="llvidencdsp"
2791 prores_decoder_select="blockdsp idctdsp"
2792 prores_encoder_select="fdctdsp"
2793 qcelp_decoder_select="lsp"
2794 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2795 ra_144_decoder_select="audiodsp"
2796 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2797 ralf_decoder_select="golomb"
2798 rasc_decoder_deps="zlib"
2799 rawvideo_decoder_select="bswapdsp"
2800 rscc_decoder_deps="zlib"
2801 rtjpeg_decoder_select="me_cmp"
2802 rv10_decoder_select="h263_decoder"
2803 rv10_encoder_select="h263_encoder"
2804 rv20_decoder_select="h263_decoder"
2805 rv20_encoder_select="h263_encoder"
2806 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2807 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2808 screenpresso_decoder_deps="zlib"
2809 shorten_decoder_select="bswapdsp"
2810 sipr_decoder_select="lsp"
2811 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2812 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2813 sonic_decoder_select="golomb rangecoder"
2814 sonic_encoder_select="golomb rangecoder"
2815 sonic_ls_encoder_select="golomb rangecoder"
2816 sp5x_decoder_select="mjpeg_decoder"
2817 speedhq_decoder_select="mpegvideo"
2818 srgc_decoder_deps="zlib"
2819 svq1_decoder_select="hpeldsp"
2820 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2821 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2822 svq3_decoder_suggest="zlib"
2823 tak_decoder_select="audiodsp"
2824 tdsc_decoder_deps="zlib"
2825 tdsc_decoder_select="mjpeg_decoder"
2826 theora_decoder_select="vp3_decoder"
2827 thp_decoder_select="mjpeg_decoder"
2828 tiff_decoder_select="mjpeg_decoder"
2829 tiff_decoder_suggest="zlib lzma"
2830 tiff_encoder_suggest="zlib"
2831 truehd_decoder_select="mlp_parser"
2832 truehd_encoder_select="lpc audio_frame_queue"
2833 truemotion2_decoder_select="bswapdsp"
2834 truespeech_decoder_select="bswapdsp"
2835 tscc_decoder_deps="zlib"
2836 twinvq_decoder_select="mdct lsp sinewin"
2837 txd_decoder_select="texturedsp"
2838 utvideo_decoder_select="bswapdsp llviddsp"
2839 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2840 vble_decoder_select="llviddsp"
2841 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2842 vc1image_decoder_select="vc1_decoder"
2843 vorbis_decoder_select="mdct"
2844 vorbis_encoder_select="audio_frame_queue mdct"
2845 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2846 vp4_decoder_select="vp3_decoder"
2847 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2848 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2849 vp6a_decoder_select="vp6_decoder"
2850 vp6f_decoder_select="vp6_decoder"
2851 vp7_decoder_select="h264pred videodsp vp8dsp"
2852 vp8_decoder_select="h264pred videodsp vp8dsp"
2853 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2854 wcmv_decoder_deps="zlib"
2855 webp_decoder_select="vp8_decoder exif"
2856 wmalossless_decoder_select="llauddsp"
2857 wmapro_decoder_select="mdct sinewin wma_freqs"
2858 wmav1_decoder_select="mdct sinewin wma_freqs"
2859 wmav1_encoder_select="mdct sinewin wma_freqs"
2860 wmav2_decoder_select="mdct sinewin wma_freqs"
2861 wmav2_encoder_select="mdct sinewin wma_freqs"
2862 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2863 wmv1_decoder_select="h263_decoder"
2864 wmv1_encoder_select="h263_encoder"
2865 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2866 wmv2_encoder_select="h263_encoder wmv2dsp"
2867 wmv3_decoder_select="vc1_decoder"
2868 wmv3image_decoder_select="wmv3_decoder"
2869 xma1_decoder_select="wmapro_decoder"
2870 xma2_decoder_select="wmapro_decoder"
2871 zerocodec_decoder_deps="zlib"
2872 zlib_decoder_deps="zlib"
2873 zlib_encoder_deps="zlib"
2874 zmbv_decoder_deps="zlib"
2875 zmbv_encoder_deps="zlib"
2876
2877 # hardware accelerators
2878 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2879 cuda_deps="ffnvcodec"
2880 cuvid_deps="ffnvcodec"
2881 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2882 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2883 ffnvcodec_deps_any="libdl LoadLibrary"
2884 nvdec_deps="ffnvcodec"
2885 vaapi_x11_deps="xlib"
2886 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2887 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2888 xvmc_deps="X11_extensions_XvMClib_h"
2889
2890 h263_vaapi_hwaccel_deps="vaapi"
2891 h263_vaapi_hwaccel_select="h263_decoder"
2892 h263_videotoolbox_hwaccel_deps="videotoolbox"
2893 h263_videotoolbox_hwaccel_select="h263_decoder"
2894 h264_d3d11va_hwaccel_deps="d3d11va"
2895 h264_d3d11va_hwaccel_select="h264_decoder"
2896 h264_d3d11va2_hwaccel_deps="d3d11va"
2897 h264_d3d11va2_hwaccel_select="h264_decoder"
2898 h264_dxva2_hwaccel_deps="dxva2"
2899 h264_dxva2_hwaccel_select="h264_decoder"
2900 h264_nvdec_hwaccel_deps="nvdec"
2901 h264_nvdec_hwaccel_select="h264_decoder"
2902 h264_vaapi_hwaccel_deps="vaapi"
2903 h264_vaapi_hwaccel_select="h264_decoder"
2904 h264_vdpau_hwaccel_deps="vdpau"
2905 h264_vdpau_hwaccel_select="h264_decoder"
2906 h264_videotoolbox_hwaccel_deps="videotoolbox"
2907 h264_videotoolbox_hwaccel_select="h264_decoder"
2908 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2909 hevc_d3d11va_hwaccel_select="hevc_decoder"
2910 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2911 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2912 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2913 hevc_dxva2_hwaccel_select="hevc_decoder"
2914 hevc_nvdec_hwaccel_deps="nvdec"
2915 hevc_nvdec_hwaccel_select="hevc_decoder"
2916 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2917 hevc_vaapi_hwaccel_select="hevc_decoder"
2918 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2919 hevc_vdpau_hwaccel_select="hevc_decoder"
2920 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2921 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2922 mjpeg_nvdec_hwaccel_deps="nvdec"
2923 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2924 mjpeg_vaapi_hwaccel_deps="vaapi"
2925 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2926 mpeg_xvmc_hwaccel_deps="xvmc"
2927 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2928 mpeg1_nvdec_hwaccel_deps="nvdec"
2929 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2930 mpeg1_vdpau_hwaccel_deps="vdpau"
2931 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2932 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2933 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2934 mpeg1_xvmc_hwaccel_deps="xvmc"
2935 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2936 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2937 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2938 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2939 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2940 mpeg2_dxva2_hwaccel_deps="dxva2"
2941 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2942 mpeg2_nvdec_hwaccel_deps="nvdec"
2943 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2944 mpeg2_vaapi_hwaccel_deps="vaapi"
2945 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2946 mpeg2_vdpau_hwaccel_deps="vdpau"
2947 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2948 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2949 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2950 mpeg2_xvmc_hwaccel_deps="xvmc"
2951 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2952 mpeg4_nvdec_hwaccel_deps="nvdec"
2953 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2954 mpeg4_vaapi_hwaccel_deps="vaapi"
2955 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2956 mpeg4_vdpau_hwaccel_deps="vdpau"
2957 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2958 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2959 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2960 vc1_d3d11va_hwaccel_deps="d3d11va"
2961 vc1_d3d11va_hwaccel_select="vc1_decoder"
2962 vc1_d3d11va2_hwaccel_deps="d3d11va"
2963 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2964 vc1_dxva2_hwaccel_deps="dxva2"
2965 vc1_dxva2_hwaccel_select="vc1_decoder"
2966 vc1_nvdec_hwaccel_deps="nvdec"
2967 vc1_nvdec_hwaccel_select="vc1_decoder"
2968 vc1_vaapi_hwaccel_deps="vaapi"
2969 vc1_vaapi_hwaccel_select="vc1_decoder"
2970 vc1_vdpau_hwaccel_deps="vdpau"
2971 vc1_vdpau_hwaccel_select="vc1_decoder"
2972 vp8_nvdec_hwaccel_deps="nvdec"
2973 vp8_nvdec_hwaccel_select="vp8_decoder"
2974 vp8_vaapi_hwaccel_deps="vaapi"
2975 vp8_vaapi_hwaccel_select="vp8_decoder"
2976 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2977 vp9_d3d11va_hwaccel_select="vp9_decoder"
2978 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2979 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2980 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2981 vp9_dxva2_hwaccel_select="vp9_decoder"
2982 vp9_nvdec_hwaccel_deps="nvdec"
2983 vp9_nvdec_hwaccel_select="vp9_decoder"
2984 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2985 vp9_vaapi_hwaccel_select="vp9_decoder"
2986 vp9_vdpau_hwaccel_deps="vdpau VdpPictureInfoVP9"
2987 vp9_vdpau_hwaccel_select="vp9_decoder"
2988 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2989 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2990 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2991 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2992 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2993 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2994
2995 # hardware-accelerated codecs
2996 omx_deps="libdl pthreads"
2997 omx_rpi_select="omx"
2998 qsv_deps="libmfx"
2999 qsvdec_select="qsv"
3000 qsvenc_select="qsv"
3001 qsvvpp_select="qsv"
3002 vaapi_encode_deps="vaapi"
3003 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
3004
3005 hwupload_cuda_filter_deps="ffnvcodec"
3006 scale_npp_filter_deps="ffnvcodec libnpp"
3007 scale_cuda_filter_deps="ffnvcodec"
3008 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3009 thumbnail_cuda_filter_deps="ffnvcodec"
3010 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3011 transpose_npp_filter_deps="ffnvcodec libnpp"
3012
3013 amf_deps_any="libdl LoadLibrary"
3014 nvenc_deps="ffnvcodec"
3015 nvenc_deps_any="libdl LoadLibrary"
3016 nvenc_encoder_deps="nvenc"
3017
3018 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3019 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3020 h264_amf_encoder_deps="amf"
3021 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3022 h264_cuvid_decoder_deps="cuvid"
3023 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3024 h264_mediacodec_decoder_deps="mediacodec"
3025 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3026 h264_mmal_decoder_deps="mmal"
3027 h264_nvenc_encoder_deps="nvenc"
3028 h264_omx_encoder_deps="omx"
3029 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3030 h264_qsv_encoder_select="qsvenc"
3031 h264_rkmpp_decoder_deps="rkmpp"
3032 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3033 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3034 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3035 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3036 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3037 hevc_amf_encoder_deps="amf"
3038 hevc_cuvid_decoder_deps="cuvid"
3039 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3040 hevc_mediacodec_decoder_deps="mediacodec"
3041 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3042 hevc_nvenc_encoder_deps="nvenc"
3043 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3044 hevc_qsv_encoder_select="hevcparse qsvenc"
3045 hevc_rkmpp_decoder_deps="rkmpp"
3046 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3047 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3048 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3049 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3050 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3051 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3052 mjpeg_cuvid_decoder_deps="cuvid"
3053 mjpeg_qsv_decoder_select="qsvdec"
3054 mjpeg_qsv_encoder_deps="libmfx"
3055 mjpeg_qsv_encoder_select="qsvenc"
3056 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3057 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3058 mpeg1_cuvid_decoder_deps="cuvid"
3059 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3060 mpeg2_crystalhd_decoder_select="crystalhd"
3061 mpeg2_cuvid_decoder_deps="cuvid"
3062 mpeg2_mmal_decoder_deps="mmal"
3063 mpeg2_mediacodec_decoder_deps="mediacodec"
3064 mpeg2_qsv_decoder_select="qsvdec"
3065 mpeg2_qsv_encoder_select="qsvenc"
3066 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3067 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3068 mpeg4_crystalhd_decoder_select="crystalhd"
3069 mpeg4_cuvid_decoder_deps="cuvid"
3070 mpeg4_mediacodec_decoder_deps="mediacodec"
3071 mpeg4_mmal_decoder_deps="mmal"
3072 mpeg4_omx_encoder_deps="omx"
3073 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3074 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3075 msmpeg4_crystalhd_decoder_select="crystalhd"
3076 nvenc_h264_encoder_select="h264_nvenc_encoder"
3077 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3078 vc1_crystalhd_decoder_select="crystalhd"
3079 vc1_cuvid_decoder_deps="cuvid"
3080 vc1_mmal_decoder_deps="mmal"
3081 vc1_qsv_decoder_select="qsvdec"
3082 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3083 vp8_cuvid_decoder_deps="cuvid"
3084 vp8_mediacodec_decoder_deps="mediacodec"
3085 vp8_qsv_decoder_select="qsvdec"
3086 vp8_rkmpp_decoder_deps="rkmpp"
3087 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3088 vp8_vaapi_encoder_select="vaapi_encode"
3089 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3090 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3091 vp9_cuvid_decoder_deps="cuvid"
3092 vp9_mediacodec_decoder_deps="mediacodec"
3093 vp9_qsv_decoder_select="qsvdec"
3094 vp9_rkmpp_decoder_deps="rkmpp"
3095 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3096 vp9_vaapi_encoder_select="vaapi_encode"
3097 vp9_qsv_encoder_deps="libmfx MFX_CODEC_VP9"
3098 vp9_qsv_encoder_select="qsvenc"
3099 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3100 wmv3_crystalhd_decoder_select="crystalhd"
3101
3102 # parsers
3103 aac_parser_select="adts_header"
3104 av1_parser_select="cbs_av1"
3105 h264_parser_select="golomb h264dsp h264parse"
3106 hevc_parser_select="hevcparse"
3107 mpegaudio_parser_select="mpegaudioheader"
3108 mpegvideo_parser_select="mpegvideo"
3109 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3110 vc1_parser_select="vc1dsp"
3111
3112 # bitstream_filters
3113 aac_adtstoasc_bsf_select="adts_header"
3114 av1_frame_split_bsf_select="cbs_av1"
3115 av1_metadata_bsf_select="cbs_av1"
3116 eac3_core_bsf_select="ac3_parser"
3117 filter_units_bsf_select="cbs"
3118 h264_metadata_bsf_deps="const_nan"
3119 h264_metadata_bsf_select="cbs_h264"
3120 h264_redundant_pps_bsf_select="cbs_h264"
3121 hevc_metadata_bsf_select="cbs_h265"
3122 mjpeg2jpeg_bsf_select="jpegtables"
3123 mpeg2_metadata_bsf_select="cbs_mpeg2"
3124 trace_headers_bsf_select="cbs"
3125 vp9_metadata_bsf_select="cbs_vp9"
3126
3127 # external libraries
3128 aac_at_decoder_deps="audiotoolbox"
3129 aac_at_decoder_select="aac_adtstoasc_bsf"
3130 ac3_at_decoder_deps="audiotoolbox"
3131 ac3_at_decoder_select="ac3_parser"
3132 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3133 alac_at_decoder_deps="audiotoolbox"
3134 amr_nb_at_decoder_deps="audiotoolbox"
3135 avisynth_deps_any="libdl LoadLibrary"
3136 avisynth_demuxer_deps="avisynth"
3137 avisynth_demuxer_select="riffdec"
3138 eac3_at_decoder_deps="audiotoolbox"
3139 eac3_at_decoder_select="ac3_parser"
3140 gsm_ms_at_decoder_deps="audiotoolbox"
3141 ilbc_at_decoder_deps="audiotoolbox"
3142 mp1_at_decoder_deps="audiotoolbox"
3143 mp2_at_decoder_deps="audiotoolbox"
3144 mp3_at_decoder_deps="audiotoolbox"
3145 mp1_at_decoder_select="mpegaudioheader"
3146 mp2_at_decoder_select="mpegaudioheader"
3147 mp3_at_decoder_select="mpegaudioheader"
3148 pcm_alaw_at_decoder_deps="audiotoolbox"
3149 pcm_mulaw_at_decoder_deps="audiotoolbox"
3150 qdmc_at_decoder_deps="audiotoolbox"
3151 qdm2_at_decoder_deps="audiotoolbox"
3152 aac_at_encoder_deps="audiotoolbox"
3153 aac_at_encoder_select="audio_frame_queue"
3154 alac_at_encoder_deps="audiotoolbox"
3155 alac_at_encoder_select="audio_frame_queue"
3156 ilbc_at_encoder_deps="audiotoolbox"
3157 ilbc_at_encoder_select="audio_frame_queue"
3158 pcm_alaw_at_encoder_deps="audiotoolbox"
3159 pcm_alaw_at_encoder_select="audio_frame_queue"
3160 pcm_mulaw_at_encoder_deps="audiotoolbox"
3161 pcm_mulaw_at_encoder_select="audio_frame_queue"
3162 chromaprint_muxer_deps="chromaprint"
3163 h264_videotoolbox_encoder_deps="pthreads"
3164 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3165 hevc_videotoolbox_encoder_deps="pthreads"
3166 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3167 libaom_av1_decoder_deps="libaom"
3168 libaom_av1_encoder_deps="libaom"
3169 libaom_av1_encoder_select="extract_extradata_bsf"
3170 libaribb24_decoder_deps="libaribb24"
3171 libcelt_decoder_deps="libcelt"
3172 libcodec2_decoder_deps="libcodec2"
3173 libcodec2_encoder_deps="libcodec2"
3174 libdav1d_decoder_deps="libdav1d"
3175 libdavs2_decoder_deps="libdavs2"
3176 libfdk_aac_decoder_deps="libfdk_aac"
3177 libfdk_aac_encoder_deps="libfdk_aac"
3178 libfdk_aac_encoder_select="audio_frame_queue"
3179 libgme_demuxer_deps="libgme"
3180 libgsm_decoder_deps="libgsm"
3181 libgsm_encoder_deps="libgsm"
3182 libgsm_ms_decoder_deps="libgsm"
3183 libgsm_ms_encoder_deps="libgsm"
3184 libilbc_decoder_deps="libilbc"
3185 libilbc_encoder_deps="libilbc"
3186 libkvazaar_encoder_deps="libkvazaar"
3187 libmodplug_demuxer_deps="libmodplug"
3188 libmp3lame_encoder_deps="libmp3lame"
3189 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3190 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3191 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3192 libopencore_amrnb_encoder_select="audio_frame_queue"
3193 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3194 libopenh264_decoder_deps="libopenh264"
3195 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3196 libopenh264_encoder_deps="libopenh264"
3197 libopenjpeg_decoder_deps="libopenjpeg"
3198 libopenjpeg_encoder_deps="libopenjpeg"
3199 libopenmpt_demuxer_deps="libopenmpt"
3200 libopus_decoder_deps="libopus"
3201 libopus_encoder_deps="libopus"
3202 libopus_encoder_select="audio_frame_queue"
3203 librsvg_decoder_deps="librsvg"
3204 libshine_encoder_deps="libshine"
3205 libshine_encoder_select="audio_frame_queue"
3206 libspeex_decoder_deps="libspeex"
3207 libspeex_encoder_deps="libspeex"
3208 libspeex_encoder_select="audio_frame_queue"
3209 libtheora_encoder_deps="libtheora"
3210 libtwolame_encoder_deps="libtwolame"
3211 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3212 libvorbis_decoder_deps="libvorbis"
3213 libvorbis_encoder_deps="libvorbis libvorbisenc"
3214 libvorbis_encoder_select="audio_frame_queue"
3215 libvpx_vp8_decoder_deps="libvpx"
3216 libvpx_vp8_encoder_deps="libvpx"
3217 libvpx_vp9_decoder_deps="libvpx"
3218 libvpx_vp9_encoder_deps="libvpx"
3219 libwavpack_encoder_deps="libwavpack"
3220 libwavpack_encoder_select="audio_frame_queue"
3221 libwebp_encoder_deps="libwebp"
3222 libwebp_anim_encoder_deps="libwebp"
3223 libx262_encoder_deps="libx262"
3224 libx264_encoder_deps="libx264"
3225 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3226 libx264rgb_encoder_select="libx264_encoder"
3227 libx265_encoder_deps="libx265"
3228 libxavs_encoder_deps="libxavs"
3229 libxavs2_encoder_deps="libxavs2"
3230 libxvid_encoder_deps="libxvid"
3231 libzvbi_teletext_decoder_deps="libzvbi"
3232 vapoursynth_demuxer_deps="vapoursynth"
3233 videotoolbox_suggest="coreservices"
3234 videotoolbox_deps="corefoundation coremedia corevideo"
3235 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3236
3237 # demuxers / muxers
3238 ac3_demuxer_select="ac3_parser"
3239 act_demuxer_select="riffdec"
3240 aiff_muxer_select="iso_media"
3241 asf_demuxer_select="riffdec"
3242 asf_o_demuxer_select="riffdec"
3243 asf_muxer_select="riffenc"
3244 asf_stream_muxer_select="asf_muxer"
3245 avi_demuxer_select="iso_media riffdec exif"
3246 avi_muxer_select="riffenc"
3247 caf_demuxer_select="iso_media riffdec"
3248 caf_muxer_select="iso_media"
3249 dash_muxer_select="mp4_muxer"
3250 dash_demuxer_deps="libxml2"
3251 dirac_demuxer_select="dirac_parser"
3252 dts_demuxer_select="dca_parser"
3253 dtshd_demuxer_select="dca_parser"
3254 dv_demuxer_select="dvprofile"
3255 dv_muxer_select="dvprofile"
3256 dxa_demuxer_select="riffdec"
3257 eac3_demuxer_select="ac3_parser"
3258 f4v_muxer_select="mov_muxer"
3259 fifo_muxer_deps="threads"
3260 flac_demuxer_select="flac_parser"
3261 hds_muxer_select="flv_muxer"
3262 hls_muxer_select="mpegts_muxer"
3263 hls_muxer_suggest="gcrypt openssl"
3264 image2_alias_pix_demuxer_select="image2_demuxer"
3265 image2_brender_pix_demuxer_select="image2_demuxer"
3266 ipod_muxer_select="mov_muxer"
3267 ismv_muxer_select="mov_muxer"
3268 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3269 matroska_audio_muxer_select="matroska_muxer"
3270 matroska_demuxer_select="iso_media riffdec"
3271 matroska_demuxer_suggest="bzlib lzo zlib"
3272 matroska_muxer_select="iso_media riffenc"
3273 mmf_muxer_select="riffenc"
3274 mov_demuxer_select="iso_media riffdec"
3275 mov_demuxer_suggest="zlib"
3276 mov_muxer_select="iso_media riffenc rtpenc_chain"
3277 mp3_demuxer_select="mpegaudio_parser"
3278 mp3_muxer_select="mpegaudioheader"
3279 mp4_muxer_select="mov_muxer"
3280 mpegts_demuxer_select="iso_media"
3281 mpegts_muxer_select="adts_muxer latm_muxer"
3282 mpegtsraw_demuxer_select="mpegts_demuxer"
3283 mxf_muxer_select="golomb"
3284 mxf_d10_muxer_select="mxf_muxer"
3285 mxf_opatom_muxer_select="mxf_muxer"
3286 nut_muxer_select="riffenc"
3287 nuv_demuxer_select="riffdec"
3288 oga_muxer_select="ogg_muxer"
3289 ogg_demuxer_select="dirac_parse"
3290 ogv_muxer_select="ogg_muxer"
3291 opus_muxer_select="ogg_muxer"
3292 psp_muxer_select="mov_muxer"
3293 rtp_demuxer_select="sdp_demuxer"
3294 rtp_muxer_select="golomb jpegtables"
3295 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3296 rtsp_demuxer_select="http_protocol rtpdec"
3297 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3298 sap_demuxer_select="sdp_demuxer"
3299 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3300 sdp_demuxer_select="rtpdec"
3301 smoothstreaming_muxer_select="ismv_muxer"
3302 spdif_demuxer_select="adts_header"
3303 spdif_muxer_select="adts_header"
3304 spx_muxer_select="ogg_muxer"
3305 swf_demuxer_suggest="zlib"
3306 tak_demuxer_select="tak_parser"
3307 tg2_muxer_select="mov_muxer"
3308 tgp_muxer_select="mov_muxer"
3309 vobsub_demuxer_select="mpegps_demuxer"
3310 w64_demuxer_select="wav_demuxer"
3311 w64_muxer_select="wav_muxer"
3312 wav_demuxer_select="riffdec"
3313 wav_muxer_select="riffenc"
3314 webm_muxer_select="iso_media riffenc"
3315 webm_dash_manifest_demuxer_select="matroska_demuxer"
3316 wtv_demuxer_select="mpegts_demuxer riffdec"
3317 wtv_muxer_select="mpegts_muxer riffenc"
3318 xmv_demuxer_select="riffdec"
3319 xwma_demuxer_select="riffdec"
3320
3321 # indevs / outdevs
3322 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3323 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3324 alsa_indev_deps="alsa"
3325 alsa_outdev_deps="alsa"
3326 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3327 avfoundation_indev_suggest="coregraphics applicationservices"
3328 avfoundation_indev_extralibs="-framework Foundation"
3329 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3330 caca_outdev_deps="libcaca"
3331 decklink_deps_any="libdl LoadLibrary"
3332 decklink_indev_deps="decklink threads"
3333 decklink_indev_extralibs="-lstdc++"
3334 decklink_outdev_deps="decklink threads"
3335 decklink_outdev_suggest="libklvanc"
3336 decklink_outdev_extralibs="-lstdc++"
3337 dshow_indev_deps="IBaseFilter"
3338 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3339 fbdev_indev_deps="linux_fb_h"
3340 fbdev_outdev_deps="linux_fb_h"
3341 gdigrab_indev_deps="CreateDIBSection"
3342 gdigrab_indev_extralibs="-lgdi32"
3343 gdigrab_indev_select="bmp_decoder"
3344 iec61883_indev_deps="libiec61883"
3345 jack_indev_deps="libjack"
3346 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3347 kmsgrab_indev_deps="libdrm"
3348 lavfi_indev_deps="avfilter"
3349 libcdio_indev_deps="libcdio"
3350 libdc1394_indev_deps="libdc1394"
3351 openal_indev_deps="openal"
3352 opengl_outdev_deps="opengl"
3353 opengl_outdev_suggest="sdl2"
3354 oss_indev_deps_any="sys_soundcard_h"
3355 oss_outdev_deps_any="sys_soundcard_h"
3356 pulse_indev_deps="libpulse"
3357 pulse_outdev_deps="libpulse"
3358 sdl2_outdev_deps="sdl2"
3359 sndio_indev_deps="sndio"
3360 sndio_outdev_deps="sndio"
3361 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3362 v4l2_indev_suggest="libv4l2"
3363 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3364 v4l2_outdev_suggest="libv4l2"
3365 vfwcap_indev_deps="vfw32 vfwcap_defines"
3366 xcbgrab_indev_deps="libxcb"
3367 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3368 xv_outdev_deps="xlib"
3369
3370 # protocols
3371 async_protocol_deps="threads"
3372 bluray_protocol_deps="libbluray"
3373 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3374 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3375 ffrtmpcrypt_protocol_select="tcp_protocol"
3376 ffrtmphttp_protocol_conflict="librtmp_protocol"
3377 ffrtmphttp_protocol_select="http_protocol"
3378 ftp_protocol_select="tcp_protocol"
3379 gopher_protocol_select="network"
3380 http_protocol_select="tcp_protocol"
3381 http_protocol_suggest="zlib"
3382 httpproxy_protocol_select="tcp_protocol"
3383 httpproxy_protocol_suggest="zlib"
3384 https_protocol_select="tls_protocol"
3385 https_protocol_suggest="zlib"
3386 icecast_protocol_select="http_protocol"
3387 mmsh_protocol_select="http_protocol"
3388 mmst_protocol_select="network"
3389 rtmp_protocol_conflict="librtmp_protocol"
3390 rtmp_protocol_select="tcp_protocol"
3391 rtmp_protocol_suggest="zlib"
3392 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3393 rtmpe_protocol_suggest="zlib"
3394 rtmps_protocol_conflict="librtmp_protocol"
3395 rtmps_protocol_select="tls_protocol"
3396 rtmps_protocol_suggest="zlib"
3397 rtmpt_protocol_select="ffrtmphttp_protocol"
3398 rtmpt_protocol_suggest="zlib"
3399 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3400 rtmpte_protocol_suggest="zlib"
3401 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3402 rtmpts_protocol_suggest="zlib"
3403 rtp_protocol_select="udp_protocol"
3404 schannel_conflict="openssl gnutls libtls mbedtls"
3405 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3406 sctp_protocol_select="network"
3407 securetransport_conflict="openssl gnutls libtls mbedtls"
3408 srtp_protocol_select="rtp_protocol srtp"
3409 tcp_protocol_select="network"
3410 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3411 tls_protocol_select="tcp_protocol"
3412 udp_protocol_select="network"
3413 udplite_protocol_select="network"
3414 unix_protocol_deps="sys_un_h"
3415 unix_protocol_select="network"
3416
3417 # external library protocols
3418 librtmp_protocol_deps="librtmp"
3419 librtmpe_protocol_deps="librtmp"
3420 librtmps_protocol_deps="librtmp"
3421 librtmpt_protocol_deps="librtmp"
3422 librtmpte_protocol_deps="librtmp"
3423 libsmbclient_protocol_deps="libsmbclient gplv3"
3424 libsrt_protocol_deps="libsrt"
3425 libsrt_protocol_select="network"
3426 libssh_protocol_deps="libssh"
3427 libtls_conflict="openssl gnutls mbedtls"
3428 libzmq_protocol_deps="libzmq"
3429 libzmq_protocol_select="network"
3430
3431 # filters
3432 afftdn_filter_deps="avcodec"
3433 afftdn_filter_select="fft"
3434 afftfilt_filter_deps="avcodec"
3435 afftfilt_filter_select="fft"
3436 afir_filter_deps="avcodec"
3437 afir_filter_select="fft"
3438 amovie_filter_deps="avcodec avformat"
3439 aresample_filter_deps="swresample"
3440 asr_filter_deps="pocketsphinx"
3441 ass_filter_deps="libass"
3442 atempo_filter_deps="avcodec"
3443 atempo_filter_select="rdft"
3444 avgblur_opencl_filter_deps="opencl"
3445 azmq_filter_deps="libzmq"
3446 blackframe_filter_deps="gpl"
3447 bm3d_filter_deps="avcodec"
3448 bm3d_filter_select="dct"
3449 boxblur_filter_deps="gpl"
3450 boxblur_opencl_filter_deps="opencl gpl"
3451 bs2b_filter_deps="libbs2b"
3452 colorkey_opencl_filter_deps="opencl"
3453 colormatrix_filter_deps="gpl"
3454 convolution_opencl_filter_deps="opencl"
3455 convolve_filter_deps="avcodec"
3456 convolve_filter_select="fft"
3457 coreimage_filter_deps="coreimage appkit"
3458 coreimage_filter_extralibs="-framework OpenGL"
3459 coreimagesrc_filter_deps="coreimage appkit"
3460 coreimagesrc_filter_extralibs="-framework OpenGL"
3461 cover_rect_filter_deps="avcodec avformat gpl"
3462 cropdetect_filter_deps="gpl"
3463 deconvolve_filter_deps="avcodec"
3464 deconvolve_filter_select="fft"
3465 deinterlace_qsv_filter_deps="libmfx"
3466 deinterlace_vaapi_filter_deps="vaapi"
3467 delogo_filter_deps="gpl"
3468 denoise_vaapi_filter_deps="vaapi"
3469 derain_filter_select="dnn"
3470 deshake_filter_select="pixelutils"
3471 deshake_opencl_filter_deps="opencl"
3472 dilation_opencl_filter_deps="opencl"
3473 drawtext_filter_deps="libfreetype"
3474 drawtext_filter_suggest="libfontconfig libfribidi"
3475 elbg_filter_deps="avcodec"
3476 eq_filter_deps="gpl"
3477 erosion_opencl_filter_deps="opencl"
3478 fftfilt_filter_deps="avcodec"
3479 fftfilt_filter_select="rdft"
3480 fftdnoiz_filter_deps="avcodec"
3481 fftdnoiz_filter_select="fft"
3482 find_rect_filter_deps="avcodec avformat gpl"
3483 firequalizer_filter_deps="avcodec"
3484 firequalizer_filter_select="rdft"
3485 flite_filter_deps="libflite"
3486 framerate_filter_select="scene_sad"
3487 freezedetect_filter_select="scene_sad"
3488 frei0r_filter_deps="frei0r libdl"
3489 frei0r_src_filter_deps="frei0r libdl"
3490 fspp_filter_deps="gpl"
3491 geq_filter_deps="gpl"
3492 histeq_filter_deps="gpl"
3493 hqdn3d_filter_deps="gpl"
3494 interlace_filter_deps="gpl"
3495 kerndeint_filter_deps="gpl"
3496 ladspa_filter_deps="ladspa libdl"
3497 lensfun_filter_deps="liblensfun version3"
3498 lv2_filter_deps="lv2"
3499 mcdeint_filter_deps="avcodec gpl"
3500 movie_filter_deps="avcodec avformat"
3501 mpdecimate_filter_deps="gpl"
3502 mpdecimate_filter_select="pixelutils"
3503 minterpolate_filter_select="scene_sad"
3504 mptestsrc_filter_deps="gpl"
3505 negate_filter_deps="lut_filter"
3506 nlmeans_opencl_filter_deps="opencl"
3507 nnedi_filter_deps="gpl"
3508 ocr_filter_deps="libtesseract"
3509 ocv_filter_deps="libopencv"
3510 openclsrc_filter_deps="opencl"
3511 overlay_opencl_filter_deps="opencl"
3512 overlay_qsv_filter_deps="libmfx"
3513 overlay_qsv_filter_select="qsvvpp"
3514 owdenoise_filter_deps="gpl"
3515 pan_filter_deps="swresample"
3516 perspective_filter_deps="gpl"
3517 phase_filter_deps="gpl"
3518 pp7_filter_deps="gpl"
3519 pp_filter_deps="gpl postproc"
3520 prewitt_opencl_filter_deps="opencl"
3521 procamp_vaapi_filter_deps="vaapi"
3522 program_opencl_filter_deps="opencl"
3523 pullup_filter_deps="gpl"
3524 removelogo_filter_deps="avcodec avformat swscale"
3525 repeatfields_filter_deps="gpl"
3526 resample_filter_deps="avresample"
3527 roberts_opencl_filter_deps="opencl"
3528 rubberband_filter_deps="librubberband"
3529 sab_filter_deps="gpl swscale"
3530 scale2ref_filter_deps="swscale"
3531 scale_filter_deps="swscale"
3532 scale_qsv_filter_deps="libmfx"
3533 select_filter_select="scene_sad"
3534 sharpness_vaapi_filter_deps="vaapi"
3535 showcqt_filter_deps="avcodec avformat swscale"
3536 showcqt_filter_suggest="libfontconfig libfreetype"
3537 showcqt_filter_select="fft"
3538 showfreqs_filter_deps="avcodec"
3539 showfreqs_filter_select="fft"
3540 showspectrum_filter_deps="avcodec"
3541 showspectrum_filter_select="fft"
3542 showspectrumpic_filter_deps="avcodec"
3543 showspectrumpic_filter_select="fft"
3544 signature_filter_deps="gpl avcodec avformat"
3545 smartblur_filter_deps="gpl swscale"
3546 sobel_opencl_filter_deps="opencl"
3547 sofalizer_filter_deps="libmysofa avcodec"
3548 sofalizer_filter_select="fft"
3549 spectrumsynth_filter_deps="avcodec"
3550 spectrumsynth_filter_select="fft"
3551 spp_filter_deps="gpl avcodec"
3552 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3553 sr_filter_deps="avformat swscale"
3554 sr_filter_select="dnn"
3555 stereo3d_filter_deps="gpl"
3556 subtitles_filter_deps="avformat avcodec libass"
3557 super2xsai_filter_deps="gpl"
3558 pixfmts_super2xsai_test_deps="super2xsai_filter"
3559 tinterlace_filter_deps="gpl"
3560 tinterlace_merge_test_deps="tinterlace_filter"
3561 tinterlace_pad_test_deps="tinterlace_filter"
3562 tonemap_filter_deps="const_nan"
3563 tonemap_opencl_filter_deps="opencl const_nan"
3564 transpose_opencl_filter_deps="opencl"
3565 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3566 unsharp_opencl_filter_deps="opencl"
3567 uspp_filter_deps="gpl avcodec"
3568 vaguedenoiser_filter_deps="gpl"
3569 vidstabdetect_filter_deps="libvidstab"
3570 vidstabtransform_filter_deps="libvidstab"
3571 libvmaf_filter_deps="libvmaf pthreads"
3572 zmq_filter_deps="libzmq"
3573 zoompan_filter_deps="swscale"
3574 zscale_filter_deps="libzimg const_nan"
3575 scale_vaapi_filter_deps="vaapi"
3576 vpp_qsv_filter_deps="libmfx"
3577 vpp_qsv_filter_select="qsvvpp"
3578 yadif_cuda_filter_deps="ffnvcodec"
3579 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3580
3581 # examples
3582 avio_dir_cmd_deps="avformat avutil"
3583 avio_reading_deps="avformat avcodec avutil"
3584 decode_audio_example_deps="avcodec avutil"
3585 decode_video_example_deps="avcodec avutil"
3586 demuxing_decoding_example_deps="avcodec avformat avutil"
3587 encode_audio_example_deps="avcodec avutil"
3588 encode_video_example_deps="avcodec avutil"
3589 extract_mvs_example_deps="avcodec avformat avutil"
3590 filter_audio_example_deps="avfilter avutil"
3591 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3592 filtering_video_example_deps="avfilter avcodec avformat avutil"
3593 http_multiclient_example_deps="avformat avutil fork"
3594 hw_decode_example_deps="avcodec avformat avutil"
3595 metadata_example_deps="avformat avutil"
3596 muxing_example_deps="avcodec avformat avutil swscale"
3597 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3598 remuxing_example_deps="avcodec avformat avutil"
3599 resampling_audio_example_deps="avutil swresample"
3600 scaling_video_example_deps="avutil swscale"
3601 transcode_aac_example_deps="avcodec avformat swresample"
3602 transcoding_example_deps="avfilter avcodec avformat avutil"
3603 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3604 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3605
3606 # EXTRALIBS_LIST
3607 cpu_init_extralibs="pthreads_extralibs"
3608 cws2fws_extralibs="zlib_extralibs"
3609
3610 # libraries, in any order
3611 avcodec_deps="avutil"
3612 avcodec_suggest="libm"
3613 avcodec_select="null_bsf"
3614 avdevice_deps="avformat avcodec avutil"
3615 avdevice_suggest="libm"
3616 avfilter_deps="avutil"
3617 avfilter_suggest="libm"
3618 avformat_deps="avcodec avutil"
3619 avformat_suggest="libm network zlib"
3620 avresample_deps="avutil"
3621 avresample_suggest="libm"
3622 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3623 postproc_deps="avutil gpl"
3624 postproc_suggest="libm"
3625 swresample_deps="avutil"
3626 swresample_suggest="libm libsoxr"
3627 swscale_deps="avutil"
3628 swscale_suggest="libm"
3629
3630 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3631 avfilter_extralibs="pthreads_extralibs"
3632 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3633
3634 # programs
3635 ffmpeg_deps="avcodec avfilter avformat"
3636 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3637                hflip_filter null_filter
3638                transpose_filter trim_filter vflip_filter"
3639 ffmpeg_suggest="ole32 psapi shell32"
3640 ffplay_deps="avcodec avformat swscale swresample sdl2"
3641 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3642 ffplay_suggest="shell32"
3643 ffprobe_deps="avcodec avformat"
3644 ffprobe_suggest="shell32"
3645
3646 # documentation
3647 podpages_deps="perl"
3648 manpages_deps="perl pod2man"
3649 htmlpages_deps="perl"
3650 htmlpages_deps_any="makeinfo_html texi2html"
3651 txtpages_deps="perl makeinfo"
3652 doc_deps_any="manpages htmlpages podpages txtpages"
3653
3654 # default parameters
3655
3656 logfile="ffbuild/config.log"
3657
3658 # installation paths
3659 prefix_default="/usr/local"
3660 bindir_default='${prefix}/bin'
3661 datadir_default='${prefix}/share/ffmpeg'
3662 docdir_default='${prefix}/share/doc/ffmpeg'
3663 incdir_default='${prefix}/include'
3664 libdir_default='${prefix}/lib'
3665 mandir_default='${prefix}/share/man'
3666
3667 # toolchain
3668 ar_default="ar"
3669 cc_default="gcc"
3670 cxx_default="g++"
3671 host_cc_default="gcc"
3672 doxygen_default="doxygen"
3673 install="install"
3674 ln_s_default="ln -s -f"
3675 nm_default="nm -g"
3676 pkg_config_default=pkg-config
3677 ranlib_default="ranlib"
3678 strip_default="strip"
3679 version_script='--version-script'
3680 objformat="elf32"
3681 x86asmexe_default="nasm"
3682 windres_default="windres"
3683 striptype="direct"
3684
3685 # OS
3686 target_os_default=$(tolower $(uname -s))
3687 host_os=$target_os_default
3688
3689 # machine
3690 if test "$target_os_default" = aix; then
3691     arch_default=$(uname -p)
3692     strip_default="strip -X32_64"
3693     nm_default="nm -g -X32_64"
3694 else
3695     arch_default=$(uname -m)
3696 fi
3697 cpu="generic"
3698 intrinsics="none"
3699
3700 # configurable options
3701 enable $PROGRAM_LIST
3702 enable $DOCUMENT_LIST
3703 enable $EXAMPLE_LIST
3704 enable $(filter_out avresample $LIBRARY_LIST)
3705 enable stripping
3706
3707 enable asm
3708 enable debug
3709 enable doc
3710 enable faan faandct faanidct
3711 enable optimizations
3712 enable runtime_cpudetect
3713 enable safe_bitstream_reader
3714 enable static
3715 enable swscale_alpha
3716 enable valgrind_backtrace
3717
3718 sws_max_filter_size_default=256
3719 set_default sws_max_filter_size
3720
3721 # internal components are enabled by default
3722 enable $EXTRALIBS_LIST
3723
3724 # Avoid external, non-system, libraries getting enabled by dependency resolution
3725 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3726
3727 # build settings
3728 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3729 LIBPREF="lib"
3730 LIBSUF=".a"
3731 FULLNAME='$(NAME)$(BUILDSUF)'
3732 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3733 SLIBPREF="lib"
3734 SLIBSUF=".so"
3735 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3736 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3737 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3738 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3739 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3740 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3741 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3742
3743 asflags_filter=echo
3744 cflags_filter=echo
3745 ldflags_filter=echo
3746
3747 AS_C='-c'
3748 AS_O='-o $@'
3749 CC_C='-c'
3750 CC_E='-E -o $@'
3751 CC_O='-o $@'
3752 CXX_C='-c'
3753 CXX_O='-o $@'
3754 OBJCC_C='-c'
3755 OBJCC_E='-E -o $@'
3756 OBJCC_O='-o $@'
3757 X86ASM_O='-o $@'
3758 LD_O='-o $@'
3759 LD_LIB='-l%'
3760 LD_PATH='-L'
3761 HOSTCC_C='-c'
3762 HOSTCC_E='-E -o $@'
3763 HOSTCC_O='-o $@'
3764 HOSTLD_O='-o $@'
3765 NVCC_C='-c'
3766 NVCC_O='-o $@'
3767
3768 host_extralibs='-lm'
3769 host_cflags_filter=echo
3770 host_ldflags_filter=echo
3771
3772 target_path='$(CURDIR)'
3773
3774 # since the object filename is not given with the -MM flag, the compiler
3775 # is only able to print the basename, and we must add the path ourselves
3776 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3777 DEPFLAGS='-MM'
3778
3779 mkdir -p ffbuild
3780
3781 # find source path
3782 if test -f configure; then
3783     source_path=.
3784 elif test -f src/configure; then
3785     source_path=src
3786 else
3787     source_path=$(cd $(dirname "$0"); pwd)
3788     case "$source_path" in
3789         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3790     esac
3791     test -e "$source_path/config.h" &&
3792         die "Out of tree builds are impossible with config.h in source dir."
3793 fi
3794
3795 for v in "$@"; do
3796     r=${v#*=}
3797     l=${v%"$r"}
3798     r=$(sh_quote "$r")
3799     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3800 done
3801
3802 find_things_extern(){
3803     thing=$1
3804     pattern=$2
3805     file=$source_path/$3
3806     out=${4:-$thing}
3807     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3808 }
3809
3810 find_filters_extern(){
3811     file=$source_path/$1
3812     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3813 }
3814
3815 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3816 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3817 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3818 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3819 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3820 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3821 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3822 CODEC_LIST="
3823     $ENCODER_LIST
3824     $DECODER_LIST
3825 "
3826 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3827 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3828 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3829 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3830
3831 AVCODEC_COMPONENTS_LIST="
3832     $BSF_LIST
3833     $DECODER_LIST
3834     $ENCODER_LIST
3835     $HWACCEL_LIST
3836     $PARSER_LIST
3837 "
3838
3839 AVDEVICE_COMPONENTS_LIST="
3840     $INDEV_LIST
3841     $OUTDEV_LIST
3842 "
3843
3844 AVFILTER_COMPONENTS_LIST="
3845     $FILTER_LIST
3846 "
3847
3848 AVFORMAT_COMPONENTS_LIST="
3849     $DEMUXER_LIST
3850     $MUXER_LIST
3851     $PROTOCOL_LIST
3852 "
3853
3854 ALL_COMPONENTS="
3855     $AVCODEC_COMPONENTS_LIST
3856     $AVDEVICE_COMPONENTS_LIST
3857     $AVFILTER_COMPONENTS_LIST
3858     $AVFORMAT_COMPONENTS_LIST
3859 "
3860
3861 for n in $COMPONENT_LIST; do
3862     v=$(toupper ${n%s})_LIST
3863     eval enable \$$v
3864     eval ${n}_if_any="\$$v"
3865 done
3866
3867 enable $ARCH_EXT_LIST
3868
3869 die_unknown(){
3870     echo "Unknown option \"$1\"."
3871     echo "See $0 --help for available options."
3872     exit 1
3873 }
3874
3875 print_in_columns() {
3876     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3877     {
3878         num_cols = width > col_width ? int(width / col_width) : 1;
3879         num_rows = int((NF + num_cols-1) / num_cols);
3880         y = x = 1;
3881         for (y = 1; y <= num_rows; y++) {
3882             i = y;
3883             for (x = 1; x <= num_cols; x++) {
3884                 if (i <= NF) {
3885                   line = sprintf("%s%-" col_width "s", line, $i);
3886                 }
3887                 i = i + num_rows;
3888             }
3889             print line; line = "";
3890         }
3891     }' | sed 's/ *$//'
3892 }
3893
3894 show_list() {
3895     suffix=_$1
3896     shift
3897     echo $* | sed s/$suffix//g | print_in_columns
3898     exit 0
3899 }
3900
3901 rand_list(){
3902     IFS=', '
3903     set -- $*
3904     unset IFS
3905     for thing; do
3906         comp=${thing%:*}
3907         prob=${thing#$comp}
3908         prob=${prob#:}
3909         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3910         echo "prob ${prob:-0.5}"
3911         printf '%s\n' $comp
3912     done
3913 }
3914
3915 do_random(){
3916     action=$1
3917     shift
3918     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3919     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3920 }
3921
3922 for opt do
3923     optval="${opt#*=}"
3924     case "$opt" in
3925         --extra-ldflags=*)
3926             add_ldflags $optval
3927         ;;
3928         --extra-ldexeflags=*)
3929             add_ldexeflags $optval
3930         ;;
3931         --extra-ldsoflags=*)
3932             add_ldsoflags $optval
3933         ;;
3934         --extra-ldlibflags=*)
3935             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3936                  "removed in the future. Use --extra-ldsoflags instead."
3937             add_ldsoflags $optval
3938         ;;
3939         --extra-libs=*)
3940             add_extralibs $optval
3941         ;;
3942         --disable-devices)
3943             disable $INDEV_LIST $OUTDEV_LIST
3944         ;;
3945         --enable-debug=*)
3946             debuglevel="$optval"
3947         ;;
3948         --disable-programs)
3949             disable $PROGRAM_LIST
3950         ;;
3951         --disable-everything)
3952             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3953         ;;
3954         --disable-all)
3955             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3956             disable $LIBRARY_LIST $PROGRAM_LIST doc
3957             enable avutil
3958         ;;
3959         --enable-random|--disable-random)
3960             action=${opt%%-random}
3961             do_random ${action#--} $COMPONENT_LIST
3962         ;;
3963         --enable-random=*|--disable-random=*)
3964             action=${opt%%-random=*}
3965             do_random ${action#--} $optval
3966         ;;
3967         --enable-sdl)
3968             enable sdl2
3969         ;;
3970         --enable-*=*|--disable-*=*)
3971             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3972             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3973             eval list=\$$(toupper $thing)_LIST
3974             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3975             list=$(filter "$name" $list)
3976             [ "$list" = "" ] && warn "Option $opt did not match anything"
3977             test $action = enable && warn_if_gets_disabled $list
3978             $action $list
3979         ;;
3980         --enable-yasm|--disable-yasm)
3981             warn "The ${opt} option is only provided for compatibility and will be\n"\
3982                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3983             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3984         ;;
3985         --yasmexe=*)
3986             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3987                  "removed in the future. Use --x86asmexe instead."
3988             x86asmexe="$optval"
3989         ;;
3990         --enable-?*|--disable-?*)
3991             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3992             if is_in $option $COMPONENT_LIST; then
3993                 test $action = disable && action=unset
3994                 eval $action \$$(toupper ${option%s})_LIST
3995             elif is_in $option $CMDLINE_SELECT; then
3996                 $action $option
3997             else
3998                 die_unknown $opt
3999             fi
4000         ;;
4001         --list-*)
4002             NAME="${opt#--list-}"
4003             is_in $NAME $COMPONENT_LIST || die_unknown $opt
4004             NAME=${NAME%s}
4005             eval show_list $NAME \$$(toupper $NAME)_LIST
4006         ;;
4007         --help|-h) show_help
4008         ;;
4009         --quiet|-q) quiet=yes
4010         ;;
4011         --fatal-warnings) enable fatal_warnings
4012         ;;
4013         --libfuzzer=*)
4014             libfuzzer_path="$optval"
4015         ;;
4016         *)
4017             optname="${opt%%=*}"
4018             optname="${optname#--}"
4019             optname=$(echo "$optname" | sed 's/-/_/g')
4020             if is_in $optname $CMDLINE_SET; then
4021                 eval $optname='$optval'
4022             elif is_in $optname $CMDLINE_APPEND; then
4023                 append $optname "$optval"
4024             else
4025                 die_unknown $opt
4026             fi
4027         ;;
4028     esac
4029 done
4030
4031 for e in $env; do
4032     eval "export $e"
4033 done
4034
4035 if disabled autodetect; then
4036
4037     # Unless iconv is explicitely disabled by the user, we still want to probe
4038     # for the iconv from the libc.
4039     disabled iconv || enable libc_iconv
4040
4041     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4042     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4043 fi
4044 # Mark specifically enabled, but normally autodetected libraries as requested.
4045 for lib in $AUTODETECT_LIBS; do
4046     enabled $lib && request $lib
4047 done
4048 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4049 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4050 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4051
4052 disabled logging && logfile=/dev/null
4053
4054 # command line configuration sanity checks
4055
4056 # we need to build at least one lib type
4057 if ! enabled_any static shared; then
4058     cat <<EOF
4059 At least one library type must be built.
4060 Specify --enable-static to build the static libraries or --enable-shared to
4061 build the shared libraries as well. To only build the shared libraries specify
4062 --disable-static in addition to --enable-shared.
4063 EOF
4064     exit 1
4065 fi
4066
4067 die_license_disabled() {
4068     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4069 }
4070
4071 die_license_disabled_gpl() {
4072     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4073 }
4074
4075 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4076 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4077
4078 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4079 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4080
4081 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4082
4083 if enabled nonfree; then
4084     license="nonfree and unredistributable"
4085 elif enabled gplv3; then
4086     license="GPL version 3 or later"
4087 elif enabled lgplv3; then
4088     license="LGPL version 3 or later"
4089 elif enabled gpl; then
4090     license="GPL version 2 or later"
4091 else
4092     license="LGPL version 2.1 or later"
4093 fi
4094
4095 enabled_all gnutls openssl &&
4096     die "GnuTLS and OpenSSL must not be enabled at the same time."
4097
4098 enabled_all gnutls mbedtls &&
4099     die "GnuTLS and mbedTLS must not be enabled at the same time."
4100
4101 enabled_all openssl mbedtls &&
4102     die "OpenSSL and mbedTLS must not be enabled at the same time."
4103
4104 # Disable all the library-specific components if the library itself
4105 # is disabled, see AVCODEC_LIST and following _LIST variables.
4106
4107 disable_components(){
4108     disabled ${1} && disable $(
4109         eval components="\$$(toupper ${1})_COMPONENTS"
4110         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4111     )
4112 }
4113
4114 map 'disable_components $v' $LIBRARY_LIST
4115
4116 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4117 set >> $logfile
4118
4119 test -n "$valgrind" && toolchain="valgrind-memcheck"
4120
4121 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4122     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4123     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4124 }
4125
4126 case "$toolchain" in
4127     *-asan)
4128         cc_default="${toolchain%-asan}"
4129         add_cflags  -fsanitize=address
4130         add_ldflags -fsanitize=address
4131     ;;
4132     *-msan)
4133         cc_default="${toolchain%-msan}"
4134         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4135         add_ldflags -fsanitize=memory
4136     ;;
4137     *-tsan)
4138         cc_default="${toolchain%-tsan}"
4139         add_cflags  -fsanitize=thread
4140         add_ldflags -fsanitize=thread
4141         case "$toolchain" in
4142             gcc-tsan)
4143                 add_cflags  -fPIC
4144                 add_ldflags -fPIC
4145                 ;;
4146         esac
4147     ;;
4148     *-usan)
4149         cc_default="${toolchain%-usan}"
4150         add_cflags  -fsanitize=undefined
4151         add_ldflags -fsanitize=undefined
4152     ;;
4153     valgrind-*)
4154         target_exec_default="valgrind"
4155         case "$toolchain" in
4156             valgrind-massif)
4157                 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"
4158                 ;;
4159             valgrind-memcheck)
4160                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4161                 ;;
4162         esac
4163     ;;
4164     msvc)
4165         # Check whether the current MSVC version needs the C99 converter.
4166         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4167         # support enough of C99 to build ffmpeg. Default to the new
4168         # behaviour if the regexp was unable to match anything, since this
4169         # successfully parses the version number of existing supported
4170         # versions that require the converter (MSVC 2010 and 2012).
4171         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4172         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4173             cc_default="cl.exe"
4174             cxx_default="cl.exe"
4175         else
4176             die "Unsupported MSVC version (2013 or newer required)"
4177         fi
4178         ld_default="$source_path/compat/windows/mslink"
4179         nm_default="dumpbin.exe -symbols"
4180         ar_default="lib.exe"
4181         case "$arch" in
4182         aarch64|arm64)
4183             as_default="armasm64.exe"
4184             ;;
4185         arm*)
4186             as_default="armasm.exe"
4187             ;;
4188         esac
4189         target_os_default="win32"
4190         # Use a relative path for TMPDIR. This makes sure all the
4191         # ffconf temp files are written with a relative path, avoiding
4192         # issues with msys/win32 path conversion for MSVC parameters
4193         # such as -Fo<file> or -out:<file>.
4194         TMPDIR=.
4195     ;;
4196     icl)
4197         cc_default="icl"
4198         ld_default="xilink"
4199         nm_default="dumpbin -symbols"
4200         ar_default="xilib"
4201         target_os_default="win32"
4202         TMPDIR=.
4203     ;;
4204     gcov)
4205         add_cflags  -fprofile-arcs -ftest-coverage
4206         add_ldflags -fprofile-arcs -ftest-coverage
4207     ;;
4208     llvm-cov)
4209         add_cflags -fprofile-arcs -ftest-coverage
4210         add_ldflags --coverage
4211     ;;
4212     hardened)
4213         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4214         add_cflags   -fno-strict-overflow -fstack-protector-all
4215         add_ldflags  -Wl,-z,relro -Wl,-z,now
4216         add_cflags   -fPIE
4217         add_ldexeflags -fPIE -pie
4218     ;;
4219     ?*)
4220         die "Unknown toolchain $toolchain"
4221     ;;
4222 esac
4223
4224 if test -n "$cross_prefix"; then
4225     test -n "$arch" && test -n "$target_os" ||
4226         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4227     enable cross_compile
4228 fi
4229
4230 set_default target_os
4231 if test "$target_os" = android; then
4232     cc_default="clang"
4233 fi
4234
4235 ar_default="${cross_prefix}${ar_default}"
4236 cc_default="${cross_prefix}${cc_default}"
4237 cxx_default="${cross_prefix}${cxx_default}"
4238 nm_default="${cross_prefix}${nm_default}"
4239 pkg_config_default="${cross_prefix}${pkg_config_default}"
4240 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4241     ranlib_default="${cross_prefix}${ranlib_default} -D"
4242 else
4243     ranlib_default="${cross_prefix}${ranlib_default}"
4244 fi
4245 strip_default="${cross_prefix}${strip_default}"
4246 windres_default="${cross_prefix}${windres_default}"
4247
4248 sysinclude_default="${sysroot}/usr/include"
4249
4250 if enabled cuda_sdk; then
4251     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4252     enable cuda_nvcc
4253 fi
4254
4255 if enabled cuda_nvcc; then
4256     nvcc_default="nvcc"
4257     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4258 else
4259     nvcc_default="clang"
4260     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4261     NVCC_C=""
4262 fi
4263
4264 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4265     target_exec x86asmexe nvcc
4266 enabled cross_compile || host_cc_default=$cc
4267 set_default host_cc
4268
4269 pkg_config_fail_message=""
4270 if ! $pkg_config --version >/dev/null 2>&1; then
4271     warn "$pkg_config not found, library detection may fail."
4272     pkg_config=false
4273 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4274     pkg_config_fail_message="
4275 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4276 fi
4277
4278 if test $doxygen != $doxygen_default && \
4279   ! $doxygen --version >/dev/null 2>&1; then
4280     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4281 fi
4282
4283 exesuf() {
4284     case $1 in
4285         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4286     esac
4287 }
4288
4289 EXESUF=$(exesuf $target_os)
4290 HOSTEXESUF=$(exesuf $host_os)
4291
4292 # set temporary file name
4293 : ${TMPDIR:=$TEMPDIR}
4294 : ${TMPDIR:=$TMP}
4295 : ${TMPDIR:=/tmp}
4296
4297 if [ -n "$tempprefix" ] ; then
4298     mktemp(){
4299         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4300         echo "$tmpname"
4301         mkdir "$tmpname"
4302     }
4303 elif ! test_cmd mktemp -u XXXXXX; then
4304     # simple replacement for missing mktemp
4305     # NOT SAFE FOR GENERAL USE
4306     mktemp(){
4307         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4308         echo "$tmpname"
4309         mkdir "$tmpname"
4310     }
4311 fi
4312
4313 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4314     die "Unable to create temporary directory in $TMPDIR."
4315
4316 tmpfile(){
4317     tmp="${FFTMPDIR}/test"$2
4318     (set -C; exec > $tmp) 2> /dev/null ||
4319         die "Unable to create temporary file in $FFTMPDIR."
4320     eval $1=$tmp
4321 }
4322
4323 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4324 trap 'exit 2' INT
4325
4326 tmpfile TMPASM .asm
4327 tmpfile TMPC   .c
4328 tmpfile TMPCPP .cpp
4329 tmpfile TMPE   $EXESUF
4330 tmpfile TMPH   .h
4331 tmpfile TMPM   .m
4332 tmpfile TMPCU  .cu
4333 tmpfile TMPO   .o
4334 tmpfile TMPS   .S
4335 tmpfile TMPSH  .sh
4336 tmpfile TMPV   .ver
4337
4338 unset -f mktemp
4339
4340 chmod +x $TMPE
4341
4342 # make sure we can execute files in $TMPDIR
4343 cat > $TMPSH 2>> $logfile <<EOF
4344 #! /bin/sh
4345 EOF
4346 chmod +x $TMPSH >> $logfile 2>&1
4347 if ! $TMPSH >> $logfile 2>&1; then
4348     cat <<EOF
4349 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4350 variable to another directory and make sure that it is not mounted noexec.
4351 EOF
4352     die "Sanity test failed."
4353 fi
4354
4355 armasm_flags(){
4356     for flag; do
4357         case $flag in
4358             # Filter out MSVC cl.exe options from cflags that shouldn't
4359             # be passed to gas-preprocessor
4360             -M[TD]*)                                            ;;
4361             *)                  echo $flag                      ;;
4362         esac
4363    done
4364 }
4365
4366 cparser_flags(){
4367     for flag; do
4368         case $flag in
4369             -Wno-switch)             echo -Wno-switch-enum ;;
4370             -Wno-format-zero-length) ;;
4371             -Wdisabled-optimization) ;;
4372             -Wno-pointer-sign)       echo -Wno-other ;;
4373             *)                       echo $flag ;;
4374         esac
4375     done
4376 }
4377
4378 msvc_common_flags(){
4379     for flag; do
4380         case $flag in
4381             # In addition to specifying certain flags under the compiler
4382             # specific filters, they must be specified here as well or else the
4383             # generic catch all at the bottom will print the original flag.
4384             -Wall)                ;;
4385             -Wextra)              ;;
4386             -std=c99)             ;;
4387             # Common flags
4388             -fomit-frame-pointer) ;;
4389             -g)                   echo -Z7 ;;
4390             -fno-math-errno)      ;;
4391             -fno-common)          ;;
4392             -fno-signed-zeros)    ;;
4393             -fPIC)                ;;
4394             -mthumb)              ;;
4395             -march=*)             ;;
4396             -lz)                  echo zlib.lib ;;
4397             -lx264)               echo libx264.lib ;;
4398             -lstdc++)             ;;
4399             -l*)                  echo ${flag#-l}.lib ;;
4400             -LARGEADDRESSAWARE)   echo $flag ;;
4401             -L*)                  echo -libpath:${flag#-L} ;;
4402             *)                    echo $flag ;;
4403         esac
4404     done
4405 }
4406
4407 msvc_flags(){
4408     msvc_common_flags "$@"
4409     for flag; do
4410         case $flag in
4411             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4412                                        -wd4554 ;;
4413             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4414                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4415                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4416                                        -wd4307 \
4417                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4418         esac
4419     done
4420 }
4421
4422 icl_flags(){
4423     msvc_common_flags "$@"
4424     for flag; do
4425         case $flag in
4426             # Despite what Intel's documentation says -Wall, which is supported
4427             # on Windows, does enable remarks so disable them here.
4428             -Wall)                echo $flag -Qdiag-disable:remark ;;
4429             -std=c99)             echo -Qstd=c99 ;;
4430             -flto)                echo -ipo ;;
4431         esac
4432     done
4433 }
4434
4435 icc_flags(){
4436     for flag; do
4437         case $flag in
4438             -flto)                echo -ipo ;;
4439             *)                    echo $flag ;;
4440         esac
4441     done
4442 }
4443
4444 suncc_flags(){
4445     for flag; do
4446         case $flag in
4447             -march=*|-mcpu=*)
4448                 case "${flag#*=}" in
4449                     native)                   echo -xtarget=native       ;;
4450                     v9|niagara)               echo -xarch=sparc          ;;
4451                     ultrasparc)               echo -xarch=sparcvis       ;;
4452                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4453                     i586|pentium)             echo -xchip=pentium        ;;
4454                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4455                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4456                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4457                     pentium4*)          echo -xtarget=pentium4           ;;
4458                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4459                     *-sse3)             echo -xarch=sse3                 ;;
4460                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4461                     bonnell)                   echo -xarch=ssse3         ;;
4462                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4463                     westmere)                  echo -xtarget=westmere    ;;
4464                     silvermont)                echo -xarch=sse4_2        ;;
4465                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4466                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4467                                                echo -xarch=avx           ;;
4468                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4469                     btver1)                    echo -xarch=amdsse4a      ;;
4470                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4471                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4472                     k8|opteron|athlon64|athlon-fx)
4473                                                echo -xarch=sse2a         ;;
4474                     athlon*)                   echo -xarch=pentium_proa  ;;
4475                 esac
4476                 ;;
4477             -std=c99)             echo -xc99              ;;
4478             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4479             -fPIC)                echo -KPIC -xcode=pic32 ;;
4480             -W*,*)                echo $flag              ;;
4481             -f*-*|-W*|-mimpure-text)                      ;;
4482             -shared)              echo -G                 ;;
4483             *)                    echo $flag              ;;
4484         esac
4485     done
4486 }
4487
4488 probe_cc(){
4489     pfx=$1
4490     _cc=$2
4491     first=$3
4492
4493     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4494     unset _ld_o _ldflags _ld_lib _ld_path
4495     unset _depflags _DEPCMD _DEPFLAGS
4496     _flags_filter=echo
4497
4498     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4499         true # no-op to avoid reading stdin in following checks
4500     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4501         _type=llvm_gcc
4502         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4503         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4504         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4505         _cflags_speed='-O3'
4506         _cflags_size='-Os'
4507     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4508         _type=gcc
4509         gcc_version=$($_cc --version | head -n1)
4510         gcc_basever=$($_cc -dumpversion)
4511         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4512         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4513         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4514         case $gcc_basever in
4515             2) ;;
4516             2.*) ;;
4517             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4518         esac
4519         if [ "$first" = true ]; then
4520             case $gcc_basever in
4521                 4.2*)
4522                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4523             esac
4524         fi
4525         _cflags_speed='-O3'
4526         _cflags_size='-Os'
4527     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4528         _type=icc
4529         _ident=$($_cc --version | head -n1)
4530         _depflags='-MMD'
4531         _cflags_speed='-O3'
4532         _cflags_size='-Os'
4533         _cflags_noopt='-O1'
4534         _flags_filter=icc_flags
4535     elif $_cc -v 2>&1 | grep -q xlc; then
4536         _type=xlc
4537         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4538         _cflags_speed='-O5'
4539         _cflags_size='-O5 -qcompact'
4540     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4541         test -d "$sysroot" || die "No valid sysroot specified."
4542         _type=armcc
4543         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4544         armcc_conf="$PWD/armcc.conf"
4545         $_cc --arm_linux_configure                 \
4546              --arm_linux_config_file="$armcc_conf" \
4547              --configure_sysroot="$sysroot"        \
4548              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4549              die "Error creating armcc configuration file."
4550         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4551         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4552         as_default="${cross_prefix}gcc"
4553         _depflags='-MMD'
4554         _cflags_speed='-O3'
4555         _cflags_size='-Os'
4556     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4557         _type=clang
4558         _ident=$($_cc --version 2>/dev/null | head -n1)
4559         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4560         _cflags_speed='-O3'
4561         _cflags_size='-Oz'
4562     elif $_cc -V 2>&1 | grep -q Sun; then
4563         _type=suncc
4564         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4565         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4566         _DEPFLAGS='-xM1 -xc99'
4567         _ldflags='-std=c99'
4568         _cflags_speed='-O5'
4569         _cflags_size='-O5 -xspace'
4570         _flags_filter=suncc_flags
4571     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4572         _type=pathscale
4573         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4574         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4575         _cflags_speed='-O2'
4576         _cflags_size='-Os'
4577         _flags_filter='filter_out -Wdisabled-optimization'
4578     elif $_cc -v 2>&1 | grep -q Open64; then
4579         _type=open64
4580         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4581         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4582         _cflags_speed='-O2'
4583         _cflags_size='-Os'
4584         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4585     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4586         _type=armasm
4587         _ident=$($_cc | head -n1)
4588         # 4509: "This form of conditional instruction is deprecated"
4589         _flags="-nologo -ignore 4509"
4590         _flags_filter=armasm_flags
4591     elif $_cc 2>&1 | grep -q Intel; then
4592         _type=icl
4593         _ident=$($_cc 2>&1 | head -n1)
4594         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4595         # Not only is O3 broken on 13.x+ but it is slower on all previous
4596         # versions (tested) as well.
4597         _cflags_speed="-O2"
4598         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4599         if $_cc 2>&1 | grep -q Linker; then
4600             _ld_o='-out:$@'
4601         else
4602             _ld_o='-Fe$@'
4603         fi
4604         _cc_o='-Fo$@'
4605         _cc_e='-P'
4606         _flags_filter=icl_flags
4607         _ld_lib='lib%.a'
4608         _ld_path='-libpath:'
4609         # -Qdiag-error to make icl error when seeing certain unknown arguments
4610         _flags='-nologo -Qdiag-error:4044,10157'
4611         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4612         # with MSVC which enables it by default.
4613         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4614         disable stripping
4615     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4616         # lld can emulate multiple different linkers; in ms link.exe mode,
4617         # the -? parameter gives the help output which contains an identifyable
4618         # string, while it gives an error in other modes.
4619         _type=lld-link
4620         # The link.exe mode doesn't have a switch for getting the version,
4621         # but we can force it back to gnu mode and get the version from there.
4622         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4623         _ld_o='-out:$@'
4624         _flags_filter=msvc_flags
4625         _ld_lib='lib%.a'
4626         _ld_path='-libpath:'
4627     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4628         _type=msvc
4629         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4630         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4631         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4632         _cflags_speed="-O2"
4633         _cflags_size="-O1"
4634         _cflags_noopt="-O1"
4635         if $_cc -nologo- 2>&1 | grep -q Linker; then
4636             _ld_o='-out:$@'
4637         else
4638             _ld_o='-Fe$@'
4639         fi
4640         _cc_o='-Fo$@'
4641         _cc_e='-P -Fi$@'
4642         _flags_filter=msvc_flags
4643         _ld_lib='lib%.a'
4644         _ld_path='-libpath:'
4645         _flags='-nologo'
4646         disable stripping
4647     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4648         _type=cparser
4649         _ident=$($_cc --version | head -n1)
4650         _depflags='-MMD'
4651         _cflags_speed='-O4'
4652         _cflags_size='-O2'
4653         _flags_filter=cparser_flags
4654     fi
4655
4656     eval ${pfx}_type=\$_type
4657     eval ${pfx}_ident=\$_ident
4658 }
4659
4660 set_ccvars(){
4661     eval ${1}_C=\${_cc_c-\${${1}_C}}
4662     eval ${1}_E=\${_cc_e-\${${1}_E}}
4663     eval ${1}_O=\${_cc_o-\${${1}_O}}
4664
4665     if [ -n "$_depflags" ]; then
4666         eval ${1}_DEPFLAGS=\$_depflags
4667     else
4668         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4669         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4670         eval DEP${1}FLAGS=\$_flags
4671     fi
4672 }
4673
4674 probe_cc cc "$cc" "true"
4675 cflags_filter=$_flags_filter
4676 cflags_speed=$_cflags_speed
4677 cflags_size=$_cflags_size
4678 cflags_noopt=$_cflags_noopt
4679 add_cflags $_flags $_cflags
4680 cc_ldflags=$_ldflags
4681 set_ccvars CC
4682 set_ccvars CXX
4683
4684 probe_cc hostcc "$host_cc"
4685 host_cflags_filter=$_flags_filter
4686 host_cflags_speed=$_cflags_speed
4687 add_host_cflags  $_flags $_cflags
4688 set_ccvars HOSTCC
4689
4690 test -n "$cc_type" && enable $cc_type ||
4691     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4692
4693 : ${as_default:=$cc}
4694 : ${objcc_default:=$cc}
4695 : ${dep_cc_default:=$cc}
4696 : ${ld_default:=$cc}
4697 : ${host_ld_default:=$host_cc}
4698 set_default ar as objcc dep_cc ld ln_s host_ld windres
4699
4700 probe_cc as "$as"
4701 asflags_filter=$_flags_filter
4702 add_asflags $_flags $_cflags
4703 set_ccvars AS
4704
4705 probe_cc objcc "$objcc"
4706 objcflags_filter=$_flags_filter
4707 add_objcflags $_flags $_cflags
4708 set_ccvars OBJC
4709
4710 probe_cc ld "$ld"
4711 ldflags_filter=$_flags_filter
4712 add_ldflags $_flags $_ldflags
4713 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4714 LD_O=${_ld_o-$LD_O}
4715 LD_LIB=${_ld_lib-$LD_LIB}
4716 LD_PATH=${_ld_path-$LD_PATH}
4717
4718 probe_cc hostld "$host_ld"
4719 host_ldflags_filter=$_flags_filter
4720 add_host_ldflags $_flags $_ldflags
4721 HOSTLD_O=${_ld_o-$HOSTLD_O}
4722
4723 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4724     probe_cc depcc "$dep_cc"
4725     CCDEP=${_DEPCMD:-$DEPCMD}
4726     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4727     DEPCCFLAGS=$_flags
4728 fi
4729
4730 if $ar 2>&1 | grep -q Microsoft; then
4731     arflags="-nologo"
4732     ar_o='-out:$@'
4733 elif $ar 2>&1 | grep -q "\[D\] "; then
4734     arflags="rcD"
4735     ar_o='$@'
4736 else
4737     arflags="rc"
4738     ar_o='$@'
4739 fi
4740
4741 add_cflags $extra_cflags
4742 add_cxxflags $extra_cxxflags
4743 add_objcflags $extra_objcflags
4744 add_asflags $extra_cflags
4745
4746 if test -n "$sysroot"; then
4747     case "$cc_type" in
4748         gcc|llvm_gcc|clang)
4749             add_cppflags --sysroot="$sysroot"
4750             add_ldflags --sysroot="$sysroot"
4751         ;;
4752     esac
4753 fi
4754
4755 if test "$cpu" = host; then
4756     enabled cross_compile &&
4757         die "--cpu=host makes no sense when cross-compiling."
4758
4759     case "$cc_type" in
4760         gcc|llvm_gcc)
4761             check_native(){
4762                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4763                 sed -n "/cc1.*$1=/{
4764                             s/.*$1=\\([^ ]*\\).*/\\1/
4765                             p
4766                             q
4767                         }" $TMPE
4768             }
4769             cpu=$(check_native -march || check_native -mcpu)
4770         ;;
4771         clang)
4772             check_native(){
4773                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4774                 sed -n "/cc1.*-target-cpu /{
4775                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4776                             p
4777                             q
4778                         }" $TMPE
4779             }
4780             cpu=$(check_native -march)
4781         ;;
4782     esac
4783
4784     test "${cpu:-host}" = host &&
4785         die "--cpu=host not supported with compiler $cc"
4786 fi
4787
4788 # Deal with common $arch aliases
4789 case "$arch" in
4790     aarch64|arm64)
4791         arch="aarch64"
4792     ;;
4793     arm*|iPad*|iPhone*)
4794         arch="arm"
4795     ;;
4796     mips*|IP*)
4797         case "$arch" in
4798         *el)
4799             add_cppflags -EL
4800             add_ldflags -EL
4801         ;;
4802         *eb)
4803             add_cppflags -EB
4804             add_ldflags -EB
4805         ;;
4806         esac
4807         arch="mips"
4808     ;;
4809     parisc*|hppa*)
4810         arch="parisc"
4811     ;;
4812     "Power Macintosh"|ppc*|powerpc*)
4813         arch="ppc"
4814     ;;
4815     s390|s390x)
4816         arch="s390"
4817     ;;
4818     sh4|sh)
4819         arch="sh4"
4820     ;;
4821     sun4*|sparc*)
4822         arch="sparc"
4823     ;;
4824     tilegx|tile-gx)
4825         arch="tilegx"
4826     ;;
4827     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4828         arch="x86"
4829     ;;
4830 esac
4831
4832 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4833 enable $arch
4834
4835 # Add processor-specific flags
4836 if enabled aarch64; then
4837
4838     case $cpu in
4839         armv*)
4840             cpuflags="-march=$cpu"
4841         ;;
4842         *)
4843             cpuflags="-mcpu=$cpu"
4844         ;;
4845     esac
4846
4847 elif enabled alpha; then
4848
4849     cpuflags="-mcpu=$cpu"
4850
4851 elif enabled arm; then
4852
4853     check_arm_arch() {
4854         test_cpp_condition stddef.h \
4855             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4856             $cpuflags
4857     }
4858
4859     probe_arm_arch() {
4860         if   check_arm_arch 4;        then echo armv4
4861         elif check_arm_arch 4T;       then echo armv4t
4862         elif check_arm_arch 5;        then echo armv5
4863         elif check_arm_arch 5E;       then echo armv5e
4864         elif check_arm_arch 5T;       then echo armv5t
4865         elif check_arm_arch 5TE;      then echo armv5te
4866         elif check_arm_arch 5TEJ;     then echo armv5te
4867         elif check_arm_arch 6;        then echo armv6
4868         elif check_arm_arch 6J;       then echo armv6j
4869         elif check_arm_arch 6K;       then echo armv6k
4870         elif check_arm_arch 6Z;       then echo armv6z
4871         elif check_arm_arch 6KZ;      then echo armv6zk
4872         elif check_arm_arch 6ZK;      then echo armv6zk
4873         elif check_arm_arch 6T2;      then echo armv6t2
4874         elif check_arm_arch 7;        then echo armv7
4875         elif check_arm_arch 7A  7_A;  then echo armv7-a
4876         elif check_arm_arch 7S;       then echo armv7-a
4877         elif check_arm_arch 7R  7_R;  then echo armv7-r
4878         elif check_arm_arch 7M  7_M;  then echo armv7-m
4879         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4880         elif check_arm_arch 8A  8_A;  then echo armv8-a
4881         fi
4882     }
4883
4884     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4885
4886     case $cpu in
4887         armv*)
4888             cpuflags="-march=$cpu"
4889             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4890         ;;
4891         *)
4892             cpuflags="-mcpu=$cpu"
4893             case $cpu in
4894                 cortex-a*)                               subarch=armv7a  ;;
4895                 cortex-r*)                               subarch=armv7r  ;;
4896                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4897                 arm11*)                                  subarch=armv6   ;;
4898                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4899                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4900                 *)                             subarch=$(probe_arm_arch) ;;
4901             esac
4902         ;;
4903     esac
4904
4905     case "$subarch" in
4906         armv5t*)    enable fast_clz                ;;
4907         armv[6-8]*)
4908             enable fast_clz
4909             disabled fast_unaligned || enable fast_unaligned
4910             ;;
4911     esac
4912
4913 elif enabled avr32; then
4914
4915     case $cpu in
4916         ap7[02]0[0-2])
4917             subarch="avr32_ap"
4918             cpuflags="-mpart=$cpu"
4919         ;;
4920         ap)
4921             subarch="avr32_ap"
4922             cpuflags="-march=$cpu"
4923         ;;
4924         uc3[ab]*)
4925             subarch="avr32_uc"
4926             cpuflags="-mcpu=$cpu"
4927         ;;
4928         uc)
4929             subarch="avr32_uc"
4930             cpuflags="-march=$cpu"
4931         ;;
4932     esac
4933
4934 elif enabled bfin; then
4935
4936     cpuflags="-mcpu=$cpu"
4937
4938 elif enabled mips; then
4939
4940     cpuflags="-march=$cpu"
4941
4942     if [ "$cpu" != "generic" ]; then
4943         disable mips32r2
4944         disable mips32r5
4945         disable mips64r2
4946         disable mips32r6
4947         disable mips64r6
4948         disable loongson2
4949         disable loongson3
4950
4951         case $cpu in
4952             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4953                 enable mips32r2
4954                 disable msa
4955             ;;
4956             p5600|i6400|p6600)
4957                 disable mipsdsp
4958                 disable mipsdspr2
4959             ;;
4960             loongson*)
4961                 enable loongson2
4962                 enable loongson3
4963                 enable local_aligned
4964                 enable simd_align_16
4965                 enable fast_64bit
4966                 enable fast_clz
4967                 enable fast_cmov
4968                 enable fast_unaligned
4969                 disable aligned_stack
4970                 disable mipsdsp
4971                 disable mipsdspr2
4972                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4973                 if [ $cc == gcc ]; then
4974                     gcc_version=$(gcc -dumpversion)
4975                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4976                         expensive_optimization_flag=""
4977                     else
4978                         expensive_optimization_flag="-fno-expensive-optimizations"
4979                     fi
4980                 fi
4981                 case $cpu in
4982                     loongson3*)
4983                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4984                     ;;
4985                     loongson2e)
4986                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4987                     ;;
4988                     loongson2f)
4989                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4990                     ;;
4991                 esac
4992             ;;
4993             *)
4994                 # Unknown CPU. Disable everything.
4995                 warn "unknown CPU. Disabling all MIPS optimizations."
4996                 disable mipsfpu
4997                 disable mipsdsp
4998                 disable mipsdspr2
4999                 disable msa
5000                 disable mmi
5001             ;;
5002         esac
5003
5004         case $cpu in
5005             24kc)
5006                 disable mipsfpu
5007                 disable mipsdsp
5008                 disable mipsdspr2
5009             ;;
5010             24kf*)
5011                 disable mipsdsp
5012                 disable mipsdspr2
5013             ;;
5014             24kec|34kc|1004kc)
5015                 disable mipsfpu
5016                 disable mipsdspr2
5017             ;;
5018             24kef*|34kf*|1004kf*)
5019                 disable mipsdspr2
5020             ;;
5021             74kc)
5022                 disable mipsfpu
5023             ;;
5024             p5600)
5025                 enable mips32r5
5026                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
5027             ;;
5028             i6400)
5029                 enable mips64r6
5030                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5031             ;;
5032             p6600)
5033                 enable mips64r6
5034                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5035             ;;
5036         esac
5037     else
5038         # We do not disable anything. Is up to the user to disable the unwanted features.
5039         warn 'generic cpu selected'
5040     fi
5041
5042 elif enabled ppc; then
5043
5044     disable ldbrx
5045
5046     case $(tolower $cpu) in
5047         601|ppc601|powerpc601)
5048             cpuflags="-mcpu=601"
5049             disable altivec
5050         ;;
5051         603*|ppc603*|powerpc603*)
5052             cpuflags="-mcpu=603"
5053             disable altivec
5054         ;;
5055         604*|ppc604*|powerpc604*)
5056             cpuflags="-mcpu=604"
5057             disable altivec
5058         ;;
5059         g3|75*|ppc75*|powerpc75*)
5060             cpuflags="-mcpu=750"
5061             disable altivec
5062         ;;
5063         g4|745*|ppc745*|powerpc745*)
5064             cpuflags="-mcpu=7450"
5065             disable vsx
5066         ;;
5067         74*|ppc74*|powerpc74*)
5068             cpuflags="-mcpu=7400"
5069             disable vsx
5070         ;;
5071         g5|970|ppc970|powerpc970)
5072             cpuflags="-mcpu=970"
5073             disable vsx
5074         ;;
5075         power[3-6]*)
5076             cpuflags="-mcpu=$cpu"
5077             disable vsx
5078         ;;
5079         power[7-8]*)
5080             cpuflags="-mcpu=$cpu"
5081         ;;
5082         cell)
5083             cpuflags="-mcpu=cell"
5084             enable ldbrx
5085             disable vsx
5086         ;;
5087         e500mc)
5088             cpuflags="-mcpu=e500mc"
5089             disable altivec
5090         ;;
5091         e500v2)
5092             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5093             disable altivec
5094             disable dcbzl
5095         ;;
5096         e500)
5097             cpuflags="-mcpu=8540 -mhard-float"
5098             disable altivec
5099             disable dcbzl
5100         ;;
5101     esac
5102
5103 elif enabled sparc; then
5104
5105     case $cpu in
5106         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5107             cpuflags="-mcpu=$cpu"
5108         ;;
5109         ultrasparc*|niagara[234])
5110             cpuflags="-mcpu=$cpu"
5111         ;;
5112     esac
5113
5114 elif enabled x86; then
5115
5116     case $cpu in
5117         i[345]86|pentium)
5118             cpuflags="-march=$cpu"
5119             disable i686
5120             disable mmx
5121         ;;
5122         # targets that do NOT support nopl and conditional mov (cmov)
5123         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5124             cpuflags="-march=$cpu"
5125             disable i686
5126         ;;
5127         # targets that do support nopl and conditional mov (cmov)
5128         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5129         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5130         |amdfam10|barcelona|b[dt]ver*|znver*)
5131             cpuflags="-march=$cpu"
5132             enable i686
5133             enable fast_cmov
5134         ;;
5135         # targets that do support conditional mov but on which it's slow
5136         pentium4|pentium4m|prescott|nocona)
5137             cpuflags="-march=$cpu"
5138             enable i686
5139             disable fast_cmov
5140         ;;
5141     esac
5142
5143 fi
5144
5145 if [ "$cpu" != generic ]; then
5146     add_cflags  $cpuflags
5147     add_asflags $cpuflags
5148     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5149 fi
5150
5151 # compiler sanity check
5152 test_exec <<EOF
5153 int main(void){ return 0; }
5154 EOF
5155 if test "$?" != 0; then
5156     echo "$cc is unable to create an executable file."
5157     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5158         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5159         echo "Only do this if you know what cross compiling means."
5160     fi
5161     die "C compiler test failed."
5162 fi
5163
5164 add_cppflags -D_ISOC99_SOURCE
5165 add_cxxflags -D__STDC_CONSTANT_MACROS
5166 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5167
5168 # some compilers silently accept -std=c11, so we also need to check that the
5169 # version macro is defined properly
5170 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5171     add_cflags -std=c11 ||
5172     check_cflags -std=c99
5173
5174 check_cppflags -D_FILE_OFFSET_BITS=64
5175 check_cppflags -D_LARGEFILE_SOURCE
5176
5177 add_host_cppflags -D_ISOC99_SOURCE
5178 check_host_cflags -std=c99
5179 check_host_cflags -Wall
5180 check_host_cflags $host_cflags_speed
5181
5182 check_64bit(){
5183     arch32=$1
5184     arch64=$2
5185     expr=${3:-'sizeof(void *) > 4'}
5186     test_code cc "" "int test[2*($expr) - 1]" &&
5187         subarch=$arch64 || subarch=$arch32
5188     enable $subarch
5189 }
5190
5191 case "$arch" in
5192     aarch64|alpha|ia64)
5193         enabled shared && enable_weak pic
5194     ;;
5195     mips)
5196         check_64bit mips mips64 '_MIPS_SIM > 1'
5197         enabled shared && enable_weak pic
5198     ;;
5199     parisc)
5200         check_64bit parisc parisc64
5201         enabled shared && enable_weak pic
5202     ;;
5203     ppc)
5204         check_64bit ppc ppc64
5205         enabled shared && enable_weak pic
5206     ;;
5207     s390)
5208         check_64bit s390 s390x
5209         enabled shared && enable_weak pic
5210     ;;
5211     sparc)
5212         check_64bit sparc sparc64
5213         enabled shared && enable_weak pic
5214     ;;
5215     x86)
5216         check_64bit x86_32 x86_64
5217         # Treat x32 as x64 for now. Note it also needs pic if shared
5218         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5219             subarch=x86_64 && enable x86_64 && disable x86_32
5220         if enabled x86_64; then
5221             enabled shared && enable_weak pic
5222             objformat=elf64
5223         fi
5224     ;;
5225 esac
5226
5227 # OS specific
5228 case $target_os in
5229     aix)
5230         SHFLAGS=-shared
5231         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5232         enabled shared && add_ldflags -Wl,-brtl
5233         arflags='-Xany -r -c'
5234         striptype=""
5235         ;;
5236     android)
5237         disable symver
5238         enable section_data_rel_ro
5239         add_cflags -fPIE
5240         add_ldexeflags -fPIE -pie
5241         SLIB_INSTALL_NAME='$(SLIBNAME)'
5242         SLIB_INSTALL_LINKS=
5243         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5244         ;;
5245     haiku)
5246         prefix_default="/boot/common"
5247         network_extralibs="-lnetwork"
5248         host_extralibs=
5249         ;;
5250     sunos)
5251         SHFLAGS='-shared -Wl,-h,$$(@F)'
5252         enabled x86 && append SHFLAGS -mimpure-text
5253         network_extralibs="-lsocket -lnsl"
5254         add_cppflags -D__EXTENSIONS__
5255         # When using suncc to build, the Solaris linker will mark
5256         # an executable with each instruction set encountered by
5257         # the Solaris assembler.  As our libraries contain their own
5258         # guards for processor-specific code, instead suppress
5259         # generation of the HWCAPS ELF section on Solaris x86 only.
5260         enabled_all suncc x86 &&
5261             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5262             add_ldflags -Wl,-M,mapfile
5263         nm_default='nm -P -g'
5264         striptype=""
5265         version_script='-M'
5266         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5267         ;;
5268     netbsd)
5269         disable symver
5270         oss_indev_extralibs="-lossaudio"
5271         oss_outdev_extralibs="-lossaudio"
5272         enabled gcc || check_ldflags -Wl,-zmuldefs
5273         ;;
5274     openbsd|bitrig)
5275         disable symver
5276         striptype=""
5277         SHFLAGS='-shared'
5278         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5279         SLIB_INSTALL_LINKS=
5280         oss_indev_extralibs="-lossaudio"
5281         oss_outdev_extralibs="-lossaudio"
5282         ;;
5283     dragonfly)
5284         disable symver
5285         ;;
5286     freebsd)
5287         ;;
5288     bsd/os)
5289         add_extralibs -lpoll -lgnugetopt
5290         strip="strip -d"
5291         ;;
5292     darwin)
5293         enabled ppc && add_asflags -force_cpusubtype_ALL
5294         install_name_dir_default='$(SHLIBDIR)'
5295         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5296         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5297         strip="${strip} -x"
5298         add_ldflags -Wl,-dynamic,-search_paths_first
5299         check_cflags -Werror=partial-availability
5300         SLIBSUF=".dylib"
5301         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5302         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5303         enabled x86_64 && objformat="macho64" || objformat="macho32"
5304         enabled_any pic shared x86_64 ||
5305             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5306         check_headers dispatch/dispatch.h &&
5307             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5308         if test -n "$sysroot"; then
5309             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5310             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5311         fi
5312         version_script='-exported_symbols_list'
5313         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5314         ;;
5315     msys*)
5316         die "Native MSYS builds are discouraged, please use the MINGW environment."
5317         ;;
5318     mingw32*|mingw64*)
5319         target_os=mingw32
5320         LIBTARGET=i386
5321         if enabled x86_64; then
5322             LIBTARGET="i386:x86-64"
5323         elif enabled arm; then
5324             LIBTARGET="arm"
5325         elif enabled aarch64; then
5326             LIBTARGET="arm64"
5327         fi
5328         if enabled shared; then
5329             # Cannot build both shared and static libs when using dllimport.
5330             disable static
5331         fi
5332         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5333         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5334         shlibdir_default="$bindir_default"
5335         SLIBPREF=""
5336         SLIBSUF=".dll"
5337         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5338         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5339         if test_cmd lib.exe -list; then
5340             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5341             if enabled x86_64; then
5342                 LIBTARGET=x64
5343             fi
5344         else
5345             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5346         fi
5347         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5348         SLIB_INSTALL_LINKS=
5349         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5350         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5351         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5352         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5353         enabled x86_64 && objformat="win64" || objformat="win32"
5354         dlltool="${cross_prefix}dlltool"
5355         ranlib=:
5356         enable dos_paths
5357         check_ldflags -Wl,--nxcompat,--dynamicbase
5358         # Lets work around some stupidity in binutils.
5359         # ld will strip relocations from executables even though we need them
5360         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5361         # however ld then forgets what the entry point should be (oops) so we
5362         # have to manually (re)set it.
5363         if enabled x86_32; then
5364             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5365         elif enabled x86_64; then
5366             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5367             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5368             # Set image base >4GB for extra entropy with HEASLR
5369             add_ldexeflags -Wl,--image-base,0x140000000
5370             append SHFLAGS -Wl,--image-base,0x180000000
5371         fi
5372         ;;
5373     win32|win64)
5374         disable symver
5375         if enabled shared; then
5376             # Link to the import library instead of the normal static library
5377             # for shared libs.
5378             LD_LIB='%.lib'
5379             # Cannot build both shared and static libs with MSVC or icl.
5380             disable static
5381         fi
5382         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5383         shlibdir_default="$bindir_default"
5384         SLIBPREF=""
5385         SLIBSUF=".dll"
5386         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5387         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5388         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5389         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5390         SLIB_INSTALL_LINKS=
5391         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5392         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5393         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5394         enabled x86_64 && objformat="win64" || objformat="win32"
5395         ranlib=:
5396         enable dos_paths
5397         ;;
5398     cygwin*)
5399         target_os=cygwin
5400         shlibdir_default="$bindir_default"
5401         SLIBPREF="cyg"
5402         SLIBSUF=".dll"
5403         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5404         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5405         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5406         SLIB_INSTALL_LINKS=
5407         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5408         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5409         enabled x86_64 && objformat="win64" || objformat="win32"
5410         enable dos_paths
5411         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5412         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5413         ;;
5414     *-dos|freedos|opendos)
5415         network_extralibs="-lsocket"
5416         objformat="coff"
5417         enable dos_paths
5418         ;;
5419     linux)
5420         enable section_data_rel_ro
5421         enabled_any arm aarch64 && enable_weak linux_perf
5422         ;;
5423     irix*)
5424         target_os=irix
5425         ranlib="echo ignoring ranlib"
5426         ;;
5427     os/2*)
5428         strip="lxlite -CS"
5429         striptype=""
5430         objformat="aout"
5431         add_cppflags -D_GNU_SOURCE
5432         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5433         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5434         LIBSUF="_s.a"
5435         SLIBPREF=""
5436         SLIBSUF=".dll"
5437         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5438         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5439         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5440             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5441             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5442             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5443             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5444         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5445             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5446         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5447         SLIB_INSTALL_LINKS=
5448         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5449         enable dos_paths
5450         enable_weak os2threads
5451         ;;
5452     gnu/kfreebsd)
5453         add_cppflags -D_BSD_SOURCE
5454         ;;
5455     gnu)
5456         ;;
5457     qnx)
5458         add_cppflags -D_QNX_SOURCE
5459         network_extralibs="-lsocket"
5460         ;;
5461     symbian)
5462         SLIBSUF=".dll"
5463         enable dos_paths
5464         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5465         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5466         add_ldflags -Wl,--target1-abs,--no-undefined \
5467                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5468                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5469         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5470                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5471                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5472         ;;
5473     minix)
5474         ;;
5475     none)
5476         ;;
5477     *)
5478         die "Unknown OS '$target_os'."
5479         ;;
5480 esac
5481
5482 # test if creating links works
5483 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5484 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5485 mkdir "$link_dest"
5486 $ln_s "$link_dest" "$link_name"
5487 touch "$link_dest/test_file"
5488 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5489     # create link to source path
5490     [ -e src ] && rm src
5491     $ln_s "$source_path" src
5492     source_link=src
5493 else
5494     # creating directory links doesn't work
5495     # fall back to using the full source path
5496     source_link="$source_path"
5497 fi
5498 # cleanup
5499 rm -r "$link_dest"
5500 rm -r "$link_name"
5501
5502 # determine libc flavour
5503
5504 probe_libc(){
5505     pfx=$1
5506     pfx_no_=${pfx%_}
5507     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5508     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5509         eval ${pfx}libc_type=uclibc
5510         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5511     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5512         eval ${pfx}libc_type=glibc
5513         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5514     # MinGW headers can be installed on Cygwin, so check for newlib first.
5515     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5516         eval ${pfx}libc_type=newlib
5517         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5518     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5519     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5520         eval ${pfx}libc_type=mingw64
5521         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5522             add_compat msvcrt/snprintf.o
5523             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5524         fi
5525         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5526         eval test \$${pfx_no_}cc_type = "gcc" &&
5527             add_${pfx}cppflags -D__printf__=__gnu_printf__
5528         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5529             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5530         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5531     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5532          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5533         eval ${pfx}libc_type=mingw32
5534         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5535             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5536             die "ERROR: MinGW32 runtime version must be >= 3.15."
5537         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5538         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5539             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5540         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5541             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5542         eval test \$${pfx_no_}cc_type = "gcc" &&
5543             add_${pfx}cppflags -D__printf__=__gnu_printf__
5544         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5545     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5546         eval ${pfx}libc_type=msvcrt
5547         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5548             if [ "$pfx" = host_ ]; then
5549                 add_host_cppflags -Dsnprintf=_snprintf
5550             else
5551                 add_compat strtod.o strtod=avpriv_strtod
5552                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5553                                              _snprintf=avpriv_snprintf  \
5554                                              vsnprintf=avpriv_vsnprintf
5555             fi
5556         fi
5557         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5558         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5559         # 0x601 by default unless something else is set by the user.
5560         # This can easily lead to us detecting functions only present
5561         # in such new versions and producing binaries requiring windows 7.0.
5562         # Therefore explicitly set the default to Vista unless the user has
5563         # set something else on the command line.
5564         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5565         # family. For these cases, configure is free to use any functions
5566         # found in the SDK headers by default. (Alternatively, we could force
5567         # _WIN32_WINNT to 0x0602 in that case.)
5568         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5569             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5570 #ifdef WINAPI_FAMILY
5571 #include <winapifamily.h>
5572 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5573 #error not desktop
5574 #endif
5575 #endif
5576 EOF
5577         if [ "$pfx" = "" ]; then
5578             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5579             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5580         fi
5581     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5582         eval ${pfx}libc_type=klibc
5583     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5584         eval ${pfx}libc_type=bionic
5585     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5586         eval ${pfx}libc_type=solaris
5587         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5588     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5589         eval ${pfx}libc_type=djgpp
5590         add_cppflags -U__STRICT_ANSI__
5591         add_cflags "-include $source_path/compat/djgpp/math.h"
5592         add_compat djgpp/math.o
5593     fi
5594     test_${pfx}cc <<EOF
5595 #include <time.h>
5596 void *v = localtime_r;
5597 EOF
5598 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5599 #include <time.h>
5600 void *v = localtime_r;
5601 EOF
5602
5603     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5604 }
5605
5606 probe_libc
5607 probe_libc host_
5608
5609 # hacks for compiler/libc/os combinations
5610
5611 case $libc_type in
5612     bionic)
5613         add_compat strtod.o strtod=avpriv_strtod
5614         ;;
5615 esac
5616
5617 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5618     add_cppflags '-I\$(SRC_PATH)/compat/float'
5619
5620 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5621
5622 set_default libdir
5623 : ${shlibdir_default:="$libdir"}
5624 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5625
5626 set_default $PATHS_LIST
5627 set_default nm
5628
5629 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5630
5631 enable_weak_pic() {
5632     disabled pic && return
5633     enable pic
5634     add_cppflags -DPIC
5635     case "$target_os" in
5636     mingw*|cygwin*|win*)
5637         ;;
5638     *)
5639         add_cflags -fPIC
5640         add_asflags -fPIC
5641         ;;
5642     esac
5643 }
5644
5645 enabled pic && enable_weak_pic
5646
5647 test_cc <<EOF || die "Symbol mangling check failed."
5648 int ff_extern;
5649 EOF
5650 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5651 extern_prefix=${sym%%ff_extern*}
5652
5653 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5654
5655 for restrict_keyword in restrict __restrict__ __restrict ""; do
5656     test_code cc "" "char * $restrict_keyword p" && break
5657 done
5658
5659 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5660
5661 # The global variable ensures the bits appear unchanged in the object file.
5662 test_cc <<EOF || die "endian test failed"
5663 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5664 EOF
5665 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5666
5667 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5668
5669 if ! enabled ppc64 || enabled bigendian; then
5670     disable vsx
5671 fi
5672
5673 check_gas() {
5674     log "check_gas using '$as' as AS"
5675     # :vararg is used on aarch64, arm and ppc altivec
5676     check_as vararg "
5677 .macro m n, y:vararg=0
5678 \n: .int \y
5679 .endm
5680 m x" || return 1
5681     # .altmacro is only used in arm asm
5682     ! enabled arm || check_as gnu_as ".altmacro"
5683 }
5684
5685 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5686     nogas=:
5687     enabled_any arm aarch64 && nogas=die
5688     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5689     as_noop=-v
5690
5691     case $as_type in
5692         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5693         gcc)  gaspp_as_type=gas ;;
5694         *)    gaspp_as_type=$as_type ;;
5695     esac
5696
5697     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5698
5699     test "${as#*gas-preprocessor.pl}" != "$as" ||
5700     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5701         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5702
5703     if ! check_gas ; then
5704         as=${gas:=$as}
5705         check_gas || \
5706             $nogas "GNU assembler not found, install/update gas-preprocessor"
5707     fi
5708
5709     check_as as_func ".func test
5710                       .endfunc"
5711 fi
5712
5713 check_inline_asm inline_asm_labels '"1:\n"'
5714
5715 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5716
5717 if enabled aarch64; then
5718     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5719     # internal assembler in clang 3.3 does not support this instruction
5720     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5721     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5722
5723     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5724
5725 elif enabled alpha; then
5726
5727     check_cflags -mieee
5728
5729 elif enabled arm; then
5730
5731     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5732     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5733 float func(float a, float b){ return a+b; }
5734 EOF
5735     enabled thumb && check_cflags -mthumb || check_cflags -marm
5736
5737     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5738         :
5739     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5740         :
5741     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5742         case "${cross_prefix:-$cc}" in
5743             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5744             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5745 __asm__ (".eabi_attribute 28, 1");
5746 int main(void) { return 0; }
5747 EOF
5748         esac
5749         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5750     fi
5751
5752     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5753     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5754     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5755     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5756     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5757     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5758     enabled setend  && check_insn setend  'setend be'
5759
5760     [ $target_os = linux ] || [ $target_os = android ] ||
5761         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5762             $ARCH_EXT_LIST_ARM
5763
5764     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5765
5766     check_as as_arch_directive ".arch armv7-a"
5767     check_as as_dn_directive   "ra .dn d0.i16"
5768     check_as as_fpu_directive  ".fpu neon"
5769
5770     # llvm's integrated assembler supports .object_arch from llvm 3.5
5771     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5772         check_as as_object_arch ".object_arch armv4"
5773
5774     # MS armasm fails to assemble our PIC constructs
5775     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5776
5777 elif enabled mips; then
5778
5779     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5780     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5781     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5782
5783     # Enable minimum ISA based on selected options
5784     if enabled mips64; then
5785         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5786         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5787         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5788     else
5789         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5790         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5791         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5792         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5793     fi
5794
5795     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5796     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5797     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5798     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5799     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5800     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5801
5802     if enabled bigendian && enabled msa; then
5803         disable msa
5804     fi
5805
5806 elif enabled parisc; then
5807
5808     if enabled gcc; then
5809         case $($cc -dumpversion) in
5810             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5811         esac
5812     fi
5813
5814 elif enabled ppc; then
5815
5816     enable local_aligned
5817
5818     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5819     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5820     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5821     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5822
5823     if enabled altivec; then
5824         check_cflags -maltivec -mabi=altivec
5825
5826         # check if our compiler supports Motorola AltiVec C API
5827         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5828                                     vector signed int v2 = (vector signed int) { 1 };
5829                                     v1 = vec_add(v1, v2);"
5830
5831         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5832     fi
5833
5834     if enabled vsx; then
5835         check_cflags -mvsx &&
5836         check_cc vsx altivec.h "int v[4] = { 0 };
5837                                 vector signed int v1 = vec_vsx_ld(0, v);"
5838     fi
5839
5840     if enabled power8; then
5841         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5842     fi
5843
5844 elif enabled x86; then
5845
5846     check_builtin rdtsc    intrin.h   "__rdtsc()"
5847     check_builtin mm_empty mmintrin.h "_mm_empty()"
5848
5849     enable local_aligned
5850
5851     # check whether EBP is available on x86
5852     # As 'i' is stored on the stack, this program will crash
5853     # if the base pointer is used to access it because the
5854     # base pointer is cleared in the inline assembly code.
5855     check_exec_crash <<EOF && enable ebp_available
5856 volatile int i=0;
5857 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5858 return i;
5859 EOF
5860
5861     # check whether EBX is available on x86
5862     check_inline_asm ebx_available '""::"b"(0)' &&
5863         check_inline_asm ebx_available '"":::"%ebx"'
5864
5865     # check whether xmm clobbers are supported
5866     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5867
5868     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5869         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5870
5871     # check whether binutils is new enough to compile SSSE3/MMXEXT
5872     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5873     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5874
5875     probe_x86asm(){
5876         x86asmexe_probe=$1
5877         if test_cmd $x86asmexe_probe -v; then
5878             x86asmexe=$x86asmexe_probe
5879             x86asm_type=nasm
5880             x86asm_debug="-g -F dwarf"
5881             X86ASMDEP=
5882             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5883         elif test_cmd $x86asmexe_probe --version; then
5884             x86asmexe=$x86asmexe_probe
5885             x86asm_type=yasm
5886             x86asm_debug="-g dwarf2"
5887             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5888             X86ASM_DEPFLAGS=
5889         fi
5890         check_x86asm x86asm "movbe ecx, [5]"
5891     }
5892
5893     if ! disabled_any asm mmx x86asm; then
5894         disable x86asm
5895         for program in $x86asmexe nasm yasm; do
5896             probe_x86asm $program && break
5897         done
5898         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5899         X86ASMFLAGS="-f $objformat"
5900         enabled pic               && append X86ASMFLAGS "-DPIC"
5901         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5902         case "$objformat" in
5903             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5904         esac
5905
5906         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5907         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5908         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5909         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5910         check_x86asm cpunop          "CPU amdnop"
5911     fi
5912
5913     case "$cpu" in
5914         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5915             disable fast_clz
5916         ;;
5917     esac
5918
5919 fi
5920
5921 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5922
5923 check_ldflags -Wl,--as-needed
5924 check_ldflags -Wl,-z,noexecstack
5925
5926 if ! disabled network; then
5927     check_func getaddrinfo $network_extralibs
5928     check_func inet_aton $network_extralibs
5929
5930     check_type netdb.h "struct addrinfo"
5931     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5932     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5933     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5934     check_type poll.h "struct pollfd"
5935     check_type netinet/sctp.h "struct sctp_event_subscribe"
5936     check_struct "sys/socket.h" "struct msghdr" msg_flags
5937     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5938     check_type netinet/in.h "struct sockaddr_in6"
5939     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5940     check_type "sys/types.h sys/socket.h" socklen_t
5941
5942     # Prefer arpa/inet.h over winsock2
5943     if check_headers arpa/inet.h ; then
5944         check_func closesocket
5945     elif check_headers winsock2.h ; then
5946         check_func_headers winsock2.h closesocket -lws2 &&
5947             network_extralibs="-lws2" ||
5948         { check_func_headers winsock2.h closesocket -lws2_32 &&
5949             network_extralibs="-lws2_32"; } || disable winsock2_h network
5950         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5951
5952         check_type ws2tcpip.h socklen_t
5953         check_type ws2tcpip.h "struct addrinfo"
5954         check_type ws2tcpip.h "struct group_source_req"
5955         check_type ws2tcpip.h "struct ip_mreq_source"
5956         check_type ws2tcpip.h "struct ipv6_mreq"
5957         check_type winsock2.h "struct pollfd"
5958         check_struct winsock2.h "struct sockaddr" sa_len
5959         check_type ws2tcpip.h "struct sockaddr_in6"
5960         check_type ws2tcpip.h "struct sockaddr_storage"
5961     else
5962         disable network
5963     fi
5964 fi
5965
5966 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5967 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5968 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5969 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5970 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5971 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5972 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5973
5974 case "$custom_allocator" in
5975     jemalloc)
5976         # jemalloc by default does not use a prefix
5977         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5978     ;;
5979     tcmalloc)
5980         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
5981         malloc_prefix=tc_
5982     ;;
5983 esac
5984
5985 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5986 check_func  ${malloc_prefix}memalign            && enable memalign
5987 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5988
5989 check_func  access
5990 check_func_headers stdlib.h arc4random
5991 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
5992 check_func  fcntl
5993 check_func  fork
5994 check_func  gethrtime
5995 check_func  getopt
5996 check_func  getrusage
5997 check_func  gettimeofday
5998 check_func  isatty
5999 check_func  mkstemp
6000 check_func  mmap
6001 check_func  mprotect
6002 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
6003 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
6004 check_func  sched_getaffinity
6005 check_func  setrlimit
6006 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
6007 check_func  strerror_r
6008 check_func  sysconf
6009 check_func  sysctl
6010 check_func  usleep
6011
6012 check_func_headers conio.h kbhit
6013 check_func_headers io.h setmode
6014 check_func_headers lzo/lzo1x.h lzo1x_999_compress
6015 check_func_headers mach/mach_time.h mach_absolute_time
6016 check_func_headers stdlib.h getenv
6017 check_func_headers sys/stat.h lstat
6018
6019 check_func_headers windows.h GetProcessAffinityMask
6020 check_func_headers windows.h GetProcessTimes
6021 check_func_headers windows.h GetSystemTimeAsFileTime
6022 check_func_headers windows.h LoadLibrary
6023 check_func_headers windows.h MapViewOfFile
6024 check_func_headers windows.h PeekNamedPipe
6025 check_func_headers windows.h SetConsoleTextAttribute
6026 check_func_headers windows.h SetConsoleCtrlHandler
6027 check_func_headers windows.h Sleep
6028 check_func_headers windows.h VirtualAlloc
6029 check_func_headers glob.h glob
6030 enabled xlib &&
6031     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
6032
6033 check_headers direct.h
6034 check_headers dirent.h
6035 check_headers dxgidebug.h
6036 check_headers dxva.h
6037 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
6038 check_headers io.h
6039 check_headers linux/perf_event.h
6040 check_headers libcrystalhd/libcrystalhd_if.h
6041 check_headers malloc.h
6042 check_headers net/udplite.h
6043 check_headers poll.h
6044 check_headers sys/param.h
6045 check_headers sys/resource.h
6046 check_headers sys/select.h
6047 check_headers sys/time.h
6048 check_headers sys/un.h
6049 check_headers termios.h
6050 check_headers unistd.h
6051 check_headers valgrind/valgrind.h
6052 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6053 check_headers windows.h
6054 check_headers X11/extensions/XvMClib.h
6055 check_headers asm/types.h
6056
6057 # it seems there are versions of clang in some distros that try to use the
6058 # gcc headers, which explodes for stdatomic
6059 # so we also check that atomics actually work here
6060 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6061
6062 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6063 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6064     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6065 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6066 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6067 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6068
6069 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6070 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6071 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6072
6073 enabled appkit       && check_apple_framework AppKit
6074 enabled audiotoolbox && check_apple_framework AudioToolbox
6075 enabled avfoundation && check_apple_framework AVFoundation
6076 enabled coreimage    && check_apple_framework CoreImage
6077 enabled videotoolbox && check_apple_framework VideoToolbox
6078
6079 check_apple_framework CoreFoundation
6080 check_apple_framework CoreMedia
6081 check_apple_framework CoreVideo
6082
6083 enabled avfoundation && {
6084     disable coregraphics applicationservices
6085     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6086     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6087
6088 enabled videotoolbox && {
6089     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6090     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6091     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6092     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
6093     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
6094     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
6095 }
6096
6097 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6098
6099 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6100 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6101 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6102 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6103 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6104
6105 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6106 check_type "vdpau/vdpau.h" "VdpPictureInfoVP9"
6107
6108 if [ -z "$nvccflags" ]; then
6109     nvccflags=$nvccflags_default
6110 fi
6111
6112 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6113     nvccflags="$nvccflags -m64"
6114 else
6115     nvccflags="$nvccflags -m32"
6116 fi
6117
6118 if enabled cuda_nvcc; then
6119     nvccflags="$nvccflags -ptx"
6120 else
6121     nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
6122     check_nvcc cuda_llvm
6123 fi
6124
6125 if ! disabled ffnvcodec; then
6126     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6127     check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.0" "$ffnv_hdr_list" "" || \
6128       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.8 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6129       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.9 ffnvcodec < 8.2" "$ffnv_hdr_list" "" || \
6130       check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.9 ffnvcodec < 8.1" "$ffnv_hdr_list" ""
6131 fi
6132
6133 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6134
6135 if ! disabled w32threads && ! enabled pthreads; then
6136     check_func_headers "windows.h process.h" _beginthreadex &&
6137         check_type "windows.h" CONDITION_VARIABLE &&
6138         check_type "windows.h" INIT_ONCE &&
6139         enable w32threads || disable w32threads
6140     if ! enabled w32threads && enabled winrt; then
6141         check_func_headers "windows.h" CreateThread &&
6142             enable w32threads || disable w32threads
6143     fi
6144 fi
6145
6146 # check for some common methods of building with pthread support
6147 # do this before the optional library checks as some of them require pthreads
6148 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6149     if check_lib pthreads pthread.h pthread_join   -pthread &&
6150        check_lib pthreads pthread.h pthread_create -pthread; then
6151         add_cflags -pthread
6152     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6153          check_lib pthreads pthread.h pthread_create -pthreads; then
6154         add_cflags -pthreads
6155     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6156          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6157         add_cflags -ldl -pthread
6158     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6159          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6160         :
6161     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6162          check_lib pthreads pthread.h pthread_create -lpthread; then
6163         :
6164     elif check_func pthread_join && check_func pthread_create; then
6165         enable pthreads
6166     fi
6167     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6168
6169     if enabled pthreads; then
6170         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6171         check_func pthread_cancel $pthreads_extralibs
6172     fi
6173 fi
6174
6175 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6176                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6177 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6178 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6179
6180 # On some systems dynamic loading requires no extra linker flags
6181 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6182
6183 check_lib libm math.h sin -lm
6184
6185 atan2f_args=2
6186 copysign_args=2
6187 hypot_args=2
6188 ldexpf_args=2
6189 powf_args=2
6190
6191 for func in $MATH_FUNCS; do
6192     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6193 done
6194
6195 for func in $COMPLEX_FUNCS; do
6196     eval check_complexfunc $func \${${func}_args:-1}
6197 done
6198
6199 # these are off by default, so fail if requested and not available
6200 enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
6201 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6202 enabled decklink          && { require_headers DeckLinkAPI.h &&
6203                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6204 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6205 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6206 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6207 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6208 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6209 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6210 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6211                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6212                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6213 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6214 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6215 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6216 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6217 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6218 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6219                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6220                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6221 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6222 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6223 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d/dav1d.h" dav1d_version
6224 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6225 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6226 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6227 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6228                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6229                                  warn "using libfdk without pkg-config"; } }
6230 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"
6231 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6232 enabled fontconfig        && enable libfontconfig
6233 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6234 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6235 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6236 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6237                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6238 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6239                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6240                                done || die "ERROR: libgsm not found"; }
6241 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6242 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6243 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6244 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6245 # While it may appear that require is being used as a pkg-config
6246 # fallback for libmfx, it is actually being used to detect a different
6247 # installation route altogether.  If libmfx is installed via the Intel
6248 # Media SDK or Intel Media Server Studio, these don't come with
6249 # pkg-config support.  Instead, users should make sure that the build
6250 # can find the libraries and headers through other means.
6251 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6252                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6253 if enabled libmfx; then
6254    check_cc MFX_CODEC_VP9 "mfx/mfxvp9.h mfx/mfxstructures.h" "MFX_CODEC_VP9"
6255 fi
6256
6257 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6258 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6259 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine ||
6260                                require libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine -lmysofa $zlib_extralibs; }
6261 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6262                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6263                                die "ERROR: libnpp not found"; }
6264 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6265 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6266 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6267                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6268                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6269                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6270 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6271 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6272                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6273 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6274 enabled libopus           && {
6275     enabled libopus_decoder && {
6276         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6277     }
6278     enabled libopus_encoder && {
6279         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6280     }
6281 }
6282 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6283 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6284 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6285 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6286 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6287 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6288                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6289 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6290 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6291 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6292 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6293 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6294 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6295 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6296 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6297 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6298 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6299                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6300                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6301 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6302 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6303 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6304 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6305 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6306                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6307
6308 enabled libvpx            && {
6309     enabled libvpx_vp8_decoder && {
6310         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6311             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"
6312     }
6313     enabled libvpx_vp8_encoder && {
6314         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6315             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"
6316     }
6317     enabled libvpx_vp9_decoder && {
6318         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6319             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"
6320     }
6321     enabled libvpx_vp9_encoder && {
6322         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6323             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"
6324     }
6325     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6326         die "libvpx enabled but no supported decoders found"
6327     fi
6328 }
6329
6330 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6331 enabled libwebp           && {
6332     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6333     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6334 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6335                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6336                                  warn "using libx264 without pkg-config"; } } &&
6337                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6338                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6339 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6340                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6341 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6342 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6343 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6344 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6345 enabled libzmq            && require_pkg_config libzmq "libzmq >= 4.2.1" zmq.h zmq_ctx_new
6346 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6347                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6348                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6349 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6350 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6351                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6352                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6353                                die "ERROR: mbedTLS not found"; }
6354 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6355 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6356                                { ! enabled cross_compile &&
6357                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6358                                  add_ldflags -L/opt/vc/lib/ &&
6359                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6360                                die "ERROR: mmal not found" &&
6361                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6362 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6363                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6364                                die "ERROR: openal not found"; } &&
6365                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6366                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6367 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6368                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6369                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6370                                die "ERROR: opencl not found"; } &&
6371                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6372                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6373                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6374 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6375                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6376                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6377                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6378                                die "ERROR: opengl not found."
6379                              }
6380 enabled omx_rpi           && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame ||
6381                                { ! enabled cross_compile &&
6382                                  add_cflags -isystem/opt/vc/include/IL &&
6383                                  test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame; } ||
6384                                die "ERROR: OpenMAX IL headers from raspberrypi/firmware not found"; } &&
6385                              enable omx
6386 enabled omx               && require_headers OMX_Core.h
6387 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6388                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6389                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6390                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6391                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6392                                die "ERROR: openssl not found"; }
6393 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6394 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6395                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6396                                { enabled libdrm ||
6397                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6398                              }
6399 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6400
6401
6402 if enabled gcrypt; then
6403     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6404     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6405         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6406         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6407         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6408             die "ERROR: gcrypt not found"
6409         add_cflags $gcrypt_cflags
6410     else
6411         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6412     fi
6413 fi
6414
6415 if enabled sdl2; then
6416     SDL2_CONFIG="${cross_prefix}sdl2-config"
6417     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6418     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6419         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6420         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6421         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6422         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6423         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6424             enable sdl2
6425     fi
6426     if test $target_os = "mingw32"; then
6427         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6428     fi
6429 fi
6430
6431 if enabled decklink; then
6432     case $target_os in
6433         mingw32*|mingw64*|win32|win64)
6434             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6435             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6436             ;;
6437     esac
6438 fi
6439
6440 enabled securetransport &&
6441     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6442     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6443         disable securetransport
6444
6445 enabled securetransport &&
6446     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6447
6448 enabled schannel &&
6449     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6450     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6451     schannel_extralibs="-lsecur32" ||
6452         disable schannel
6453
6454 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6455 enabled makeinfo \
6456     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6457     && enable makeinfo_html || disable makeinfo_html
6458 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6459 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6460 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6461 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6462
6463 # check V4L2 codecs available in the API
6464 if enabled v4l2_m2m; then
6465     check_headers linux/fb.h
6466     check_headers linux/videodev2.h
6467     test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6468     check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6469     check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6470     check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6471     check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6472     check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6473     check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6474     check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6475     check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6476     check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6477     check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6478 fi
6479
6480 check_headers sys/videoio.h
6481 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6482
6483 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6484 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6485 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6486 # w32api 3.12 had it defined wrong
6487 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6488
6489 check_type "dshow.h" IBaseFilter
6490
6491 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6492 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6493     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6494     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6495     check_headers "dev/ic/bt8xx.h"
6496
6497 if check_struct sys/soundcard.h audio_buf_info bytes; then
6498     enable_sanitized sys/soundcard.h
6499 else
6500     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6501     #include <sys/soundcard.h>
6502     audio_buf_info abc;
6503 EOF
6504 fi
6505
6506 enabled alsa && { check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6507                   check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound; }
6508
6509 enabled libjack &&
6510     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6511
6512 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6513
6514 if enabled libcdio; then
6515     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6516     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6517     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6518     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6519     die "ERROR: No usable libcdio/cdparanoia found"
6520 fi
6521
6522 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6523     disable libxcb_shm libxcb_shape libxcb_xfixes
6524
6525 if enabled libxcb; then
6526     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6527     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6528     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6529 fi
6530
6531 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6532
6533 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6534 # the desktop api partition
6535 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6536 #ifdef WINAPI_FAMILY
6537 #include <winapifamily.h>
6538 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6539 #error desktop, not uwp
6540 #else
6541 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6542 #endif
6543 #else
6544 #error no family set
6545 #endif
6546 EOF
6547
6548 enabled vaapi &&
6549     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6550
6551 if enabled vaapi; then
6552     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6553
6554     if enabled xlib; then
6555         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6556     fi
6557
6558     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6559
6560     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6561     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6562     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6563     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6564     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6565     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6566     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6567 fi
6568
6569 if enabled_all opencl libdrm ; then
6570     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6571         enable opencl_drm_beignet
6572     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6573         enable opencl_drm_arm
6574 fi
6575
6576 if enabled_all opencl vaapi ; then
6577     if enabled opencl_drm_beignet ; then
6578         enable opencl_vaapi_beignet
6579     else
6580         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6581             enable opencl_vaapi_intel_media
6582     fi
6583 fi
6584
6585 if enabled_all opencl dxva2 ; then
6586     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6587         enable opencl_dxva2
6588 fi
6589
6590 if enabled_all opencl d3d11va ; then
6591     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6592         enable opencl_d3d11
6593 fi
6594
6595 enabled vdpau &&
6596     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6597
6598 enabled vdpau &&
6599     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6600
6601 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6602
6603 if enabled x86; then
6604     case $target_os in
6605         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6606             ;;
6607         *)
6608             disable ffnvcodec cuvid nvdec nvenc
6609             ;;
6610     esac
6611 elif enabled ppc64 && ! enabled bigendian; then
6612     case $target_os in
6613         linux)
6614             ;;
6615         *)
6616             disable ffnvcodec cuvid nvdec nvenc
6617             ;;
6618     esac
6619 else
6620     disable ffnvcodec cuvid nvdec nvenc
6621 fi
6622
6623 enabled ffnvcodec && enable cuda
6624
6625 enabled nvenc &&
6626     test_cc -I$source_path <<EOF || disable nvenc
6627 #include <ffnvcodec/nvEncodeAPI.h>
6628 NV_ENCODE_API_FUNCTION_LIST flist;
6629 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6630 int main(void) { return 0; }
6631 EOF
6632
6633 enabled amf &&
6634     check_cpp_condition amf "AMF/core/Version.h" \
6635         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400090000"
6636
6637 # Funny iconv installations are not unusual, so check it after all flags have been set
6638 if enabled libc_iconv; then
6639     check_func_headers iconv.h iconv
6640 elif enabled iconv; then
6641     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6642 fi
6643
6644 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6645
6646 # add some useful compiler flags if supported
6647 check_cflags -Wdeclaration-after-statement
6648 check_cflags -Wall
6649 check_cflags -Wdisabled-optimization
6650 check_cflags -Wpointer-arith
6651 check_cflags -Wredundant-decls
6652 check_cflags -Wwrite-strings
6653 check_cflags -Wtype-limits
6654 check_cflags -Wundef
6655 check_cflags -Wmissing-prototypes
6656 check_cflags -Wno-pointer-to-int-cast
6657 check_cflags -Wstrict-prototypes
6658 check_cflags -Wempty-body
6659
6660 if enabled extra_warnings; then
6661     check_cflags -Wcast-qual
6662     check_cflags -Wextra
6663     check_cflags -Wpedantic
6664 fi
6665
6666 check_disable_warning(){
6667     warning_flag=-W${1#-Wno-}
6668     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6669 }
6670
6671 test_cflags -Werror=unused-command-line-argument &&
6672     append unknown_warning_flags "-Werror=unused-command-line-argument"
6673 test_cflags -Werror=unknown-warning-option &&
6674     append unknown_warning_flags "-Werror=unknown-warning-option"
6675
6676 check_disable_warning -Wno-parentheses
6677 check_disable_warning -Wno-switch
6678 check_disable_warning -Wno-format-zero-length
6679 check_disable_warning -Wno-pointer-sign
6680 check_disable_warning -Wno-unused-const-variable
6681 check_disable_warning -Wno-bool-operation
6682 check_disable_warning -Wno-char-subscripts
6683
6684 check_disable_warning_headers(){
6685     warning_flag=-W${1#-Wno-}
6686     test_cflags $warning_flag && add_cflags_headers $1
6687 }
6688
6689 check_disable_warning_headers -Wno-deprecated-declarations
6690 check_disable_warning_headers -Wno-unused-variable
6691
6692 test_cc <<EOF && enable blocks_extension
6693 void (^block)(void);
6694 EOF
6695
6696 # add some linker flags
6697 check_ldflags -Wl,--warn-common
6698 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6699 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6700 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6701
6702 # add some strip flags
6703 check_stripflags -x
6704
6705 enabled neon_clobber_test &&
6706     check_ldflags -Wl,--wrap,avcodec_open2              \
6707                   -Wl,--wrap,avcodec_decode_audio4      \
6708                   -Wl,--wrap,avcodec_decode_video2      \
6709                   -Wl,--wrap,avcodec_decode_subtitle2   \
6710                   -Wl,--wrap,avcodec_encode_audio2      \
6711                   -Wl,--wrap,avcodec_encode_video2      \
6712                   -Wl,--wrap,avcodec_encode_subtitle    \
6713                   -Wl,--wrap,avcodec_send_packet        \
6714                   -Wl,--wrap,avcodec_receive_packet     \
6715                   -Wl,--wrap,avcodec_send_frame         \
6716                   -Wl,--wrap,avcodec_receive_frame      \
6717                   -Wl,--wrap,swr_convert                \
6718                   -Wl,--wrap,avresample_convert ||
6719     disable neon_clobber_test
6720
6721 enabled xmm_clobber_test &&
6722     check_ldflags -Wl,--wrap,avcodec_open2              \
6723                   -Wl,--wrap,avcodec_decode_audio4      \
6724                   -Wl,--wrap,avcodec_decode_video2      \
6725                   -Wl,--wrap,avcodec_decode_subtitle2   \
6726                   -Wl,--wrap,avcodec_encode_audio2      \
6727                   -Wl,--wrap,avcodec_encode_video2      \
6728                   -Wl,--wrap,avcodec_encode_subtitle    \
6729                   -Wl,--wrap,avcodec_send_packet        \
6730                   -Wl,--wrap,avcodec_receive_packet     \
6731                   -Wl,--wrap,avcodec_send_frame         \
6732                   -Wl,--wrap,avcodec_receive_frame      \
6733                   -Wl,--wrap,swr_convert                \
6734                   -Wl,--wrap,avresample_convert         \
6735                   -Wl,--wrap,sws_scale ||
6736     disable xmm_clobber_test
6737
6738 check_ld "cc" proper_dce <<EOF
6739 extern const int array[512];
6740 static inline int func(void) { return array[0]; }
6741 int main(void) { return 0; }
6742 EOF
6743
6744 if enabled proper_dce; then
6745     echo "X { local: *; };" > $TMPV
6746     if test_ldflags -Wl,${version_script},$TMPV; then
6747         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6748         quotes='""'
6749         test_cc <<EOF && enable symver_asm_label
6750 void ff_foo(void) __asm__ ("av_foo@VERSION");
6751 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6752 EOF
6753         test_cc <<EOF && enable symver_gnu_asm
6754 __asm__(".symver ff_foo,av_foo@VERSION");
6755 void ff_foo(void) {}
6756 EOF
6757     fi
6758 fi
6759
6760 if [ -z "$optflags" ]; then
6761     if enabled small; then
6762         optflags=$cflags_size
6763     elif enabled optimizations; then
6764         optflags=$cflags_speed
6765     else
6766         optflags=$cflags_noopt
6767     fi
6768 fi
6769
6770 check_optflags(){
6771     check_cflags "$@"
6772     enabled lto && check_ldflags "$@"
6773 }
6774
6775 check_optflags $optflags
6776 check_optflags -fno-math-errno
6777 check_optflags -fno-signed-zeros
6778
6779 if enabled lto; then
6780     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6781     check_cflags  -flto
6782     check_ldflags -flto $cpuflags
6783     disable inline_asm_direct_symbol_refs
6784 fi
6785
6786 enabled ftrapv && check_cflags -ftrapv
6787
6788 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6789 int x;
6790 EOF
6791
6792
6793 if enabled icc; then
6794     # Just warnings, no remarks
6795     check_cflags -w1
6796     # -wd: Disable following warnings
6797     # 144, 167, 556: -Wno-pointer-sign
6798     # 188: enumerated type mixed with another type
6799     # 1292: attribute "foo" ignored
6800     # 1419: external declaration in primary source file
6801     # 10006: ignoring unknown option -fno-signed-zeros
6802     # 10148: ignoring unknown option -Wno-parentheses
6803     # 10156: ignoring option '-W'; no argument required
6804     # 13200: No EMMS instruction before call to function
6805     # 13203: No EMMS instruction before return from function
6806     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6807     # 11030: Warning unknown option --as-needed
6808     # 10156: ignoring option '-export'; no argument required
6809     check_ldflags -wd10156,11030
6810     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6811     enable ebp_available
6812     # The test above does not test linking
6813     enabled lto && disable symver_asm_label
6814     if enabled x86_32; then
6815         icc_version=$($cc -dumpversion)
6816         test ${icc_version%%.*} -ge 11 &&
6817             check_cflags -falign-stack=maintain-16-byte ||
6818             disable aligned_stack
6819     fi
6820 elif enabled gcc; then
6821     check_optflags -fno-tree-vectorize
6822     check_cflags -Werror=format-security
6823     check_cflags -Werror=implicit-function-declaration
6824     check_cflags -Werror=missing-prototypes
6825     check_cflags -Werror=return-type
6826     check_cflags -Werror=vla
6827     check_cflags -Wformat
6828     check_cflags -fdiagnostics-color=auto
6829     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6830     if enabled x86_32; then
6831         case $target_os in
6832         *bsd*)
6833             # BSDs don't guarantee a 16 byte aligned stack, but we can
6834             # request GCC to try to maintain 16 byte alignment throughout
6835             # function calls. Library entry points that might call assembly
6836             # functions align the stack. (The parameter means 2^4 bytes.)
6837             check_cflags -mpreferred-stack-boundary=4
6838             ;;
6839         esac
6840     fi
6841 elif enabled llvm_gcc; then
6842     check_cflags -mllvm -stack-alignment=16
6843 elif enabled clang; then
6844     if enabled x86_32; then
6845         # Clang doesn't support maintaining alignment without assuming the
6846         # same alignment in every function. If 16 byte alignment would be
6847         # enabled, one would also have to either add attribute_align_arg on
6848         # every single entry point into the libraries or enable -mstackrealign
6849         # (doing stack realignment in every single function).
6850         case $target_os in
6851         mingw32|win32|*bsd*)
6852             disable aligned_stack
6853             ;;
6854         *)
6855             check_cflags -mllvm -stack-alignment=16
6856             check_cflags -mstack-alignment=16
6857             ;;
6858         esac
6859     else
6860         check_cflags -mllvm -stack-alignment=16
6861         check_cflags -mstack-alignment=16
6862     fi
6863     check_cflags -Qunused-arguments
6864     check_cflags -Werror=implicit-function-declaration
6865     check_cflags -Werror=missing-prototypes
6866     check_cflags -Werror=return-type
6867 elif enabled cparser; then
6868     add_cflags -Wno-missing-variable-declarations
6869     add_cflags -Wno-empty-statement
6870 elif enabled armcc; then
6871     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6872     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6873     # 2523: use of inline assembly is deprecated
6874     add_cflags -W${armcc_opt},--diag_suppress=2523
6875     add_cflags -W${armcc_opt},--diag_suppress=1207
6876     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6877     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6878     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6879     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6880 elif enabled pathscale; then
6881     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6882     disable inline_asm
6883 elif enabled_any msvc icl; then
6884     enabled x86_32 && disable aligned_stack
6885     enabled_all x86_32 debug && add_cflags -Oy-
6886     enabled debug && add_ldflags -debug
6887     enable pragma_deprecated
6888     if enabled icl; then
6889         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6890         # (correctly) on icl 13.x.
6891         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6892             add_cflags -Qansi-alias
6893         # Some inline asm is not compilable in debug
6894         if enabled debug; then
6895             disable ebp_available
6896             disable ebx_available
6897         fi
6898     fi
6899     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6900     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6901     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6902     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6903     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6904     # MSVC 2013 and newer can handle it fine.
6905     # If this declspec fails, force including stdlib.h before the restrict redefinition
6906     # happens in config.h.
6907     if [ $restrict_keyword != restrict ]; then
6908         test_cc <<EOF || add_cflags -FIstdlib.h
6909 __declspec($restrict_keyword) void *foo(int);
6910 EOF
6911     fi
6912     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6913     # Issue has been fixed in MSVC v19.00.24218.
6914     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6915         check_cflags -d2SSAOptimizer-
6916     # enable utf-8 source processing on VS2015 U2 and newer
6917     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6918         add_cflags -utf-8
6919 fi
6920
6921 for pfx in "" host_; do
6922     varname=${pfx%_}cc_type
6923     eval "type=\$$varname"
6924     if [ "$type" = "msvc" ]; then
6925         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6926 static inline int foo(int a) { return a; }
6927 EOF
6928     fi
6929 done
6930
6931 case $as_type in
6932     clang)
6933         add_asflags -Qunused-arguments
6934     ;;
6935 esac
6936
6937 case $ld_type in
6938     clang)
6939         check_ldflags -Qunused-arguments
6940     ;;
6941 esac
6942
6943 enable frame_thread_encoder
6944
6945 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6946
6947 check_deps $CONFIG_LIST       \
6948            $CONFIG_EXTRA      \
6949            $HAVE_LIST         \
6950            $ALL_COMPONENTS    \
6951
6952 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"
6953 enabled avresample && warn "Building with deprecated library libavresample"
6954
6955 case $target_os in
6956 haiku)
6957     disable memalign
6958     disable posix_memalign
6959     ;;
6960 *-dos|freedos|opendos)
6961     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6962         disable memalign
6963     fi
6964     ;;
6965 esac
6966
6967 flatten_extralibs(){
6968     nested_entries=
6969     list_name=$1
6970     eval list=\$${1}
6971     for entry in $list; do
6972         entry_copy=$entry
6973         resolve entry_copy
6974         flat_entries=
6975         for e in $entry_copy; do
6976             case $e in
6977                 *_extralibs) nested_entries="$nested_entries$e ";;
6978                           *) flat_entries="$flat_entries$e ";;
6979             esac
6980         done
6981         eval $entry="\$flat_entries"
6982     done
6983     append $list_name "$nested_entries"
6984
6985     resolve nested_entries
6986     if test -n "$(filter '*_extralibs' $nested_entries)"; then
6987         flatten_extralibs $list_name
6988     fi
6989 }
6990
6991 flatten_extralibs_wrapper(){
6992     list_name=$1
6993     flatten_extralibs $list_name
6994     unique $list_name
6995     resolve $list_name
6996     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
6997     eval printf \''%s'\' \""\$$list_name"\"
6998 }
6999
7000 for linkunit in $LIBRARY_LIST; do
7001     unset current_extralibs
7002     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
7003     for comp in ${components}; do
7004         enabled $comp || continue
7005         comp_extralibs="${comp}_extralibs"
7006         append current_extralibs $comp_extralibs
7007     done
7008     eval prepend ${linkunit}_extralibs $current_extralibs
7009 done
7010
7011 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7012     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
7013 done
7014
7015 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
7016
7017 for thread in $THREADS_LIST; do
7018     if enabled $thread; then
7019         test -n "$thread_type" &&
7020             die "ERROR: Only one thread type must be selected." ||
7021             thread_type="$thread"
7022     fi
7023 done
7024
7025 if disabled stdatomic; then
7026     if enabled atomics_gcc; then
7027         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
7028     elif enabled atomics_win32; then
7029         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
7030     elif enabled atomics_suncc; then
7031         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
7032     elif enabled pthreads; then
7033         add_compat atomics/pthread/stdatomic.o
7034         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
7035     else
7036         enabled threads && die "Threading is enabled, but no atomics are available"
7037         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
7038     fi
7039 fi
7040
7041 # Check if requested libraries were found.
7042 for lib in $AUTODETECT_LIBS; do
7043     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
7044 done
7045
7046 enabled zlib && add_cppflags -DZLIB_CONST
7047
7048 # conditional library dependencies, in any order
7049 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
7050 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
7051 enabled afir_filter         && prepend avfilter_deps "avcodec"
7052 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
7053 enabled aresample_filter    && prepend avfilter_deps "swresample"
7054 enabled atempo_filter       && prepend avfilter_deps "avcodec"
7055 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7056 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7057 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7058 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7059 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7060 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7061 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7062 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7063 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7064 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7065 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7066 enabled pan_filter          && prepend avfilter_deps "swresample"
7067 enabled pp_filter           && prepend avfilter_deps "postproc"
7068 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7069 enabled resample_filter && prepend avfilter_deps "avresample"
7070 enabled sab_filter          && prepend avfilter_deps "swscale"
7071 enabled scale_filter    && prepend avfilter_deps "swscale"
7072 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7073 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7074 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7075 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7076 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7077 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7078 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7079 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7080 enabled spp_filter          && prepend avfilter_deps "avcodec"
7081 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7082 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7083 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7084 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7085
7086 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7087
7088 #FIXME
7089 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7090     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7091
7092 enabled opus_decoder    && prepend avcodec_deps "swresample"
7093
7094 # reorder the items at var $1 to align with the items order at var $2 .
7095 # die if an item at $1 is not at $2 .
7096 reorder_by(){
7097     eval rb_in=\$$1
7098     eval rb_ordered=\$$2
7099
7100     for rb in $rb_in; do
7101         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7102     done
7103
7104     rb_out=
7105     for rb in $rb_ordered; do
7106         is_in $rb $rb_in && rb_out="$rb_out$rb "
7107     done
7108     eval $1=\$rb_out
7109 }
7110
7111 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7112 # within a set of N items, N expansions are enough to expose a cycle.
7113 expand_deps(){
7114     unique ${1}_deps  # required for the early break test.
7115     for dummy in $LIBRARY_LIST; do  # N iteratios
7116         eval deps=\$${1}_deps
7117         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7118         unique ${1}_deps
7119         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7120     done
7121
7122     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7123     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7124 }
7125
7126 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7127 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7128
7129 map 'expand_deps $v' $LIBRARY_LIST
7130
7131 if test "$quiet" != "yes"; then
7132
7133 echo "install prefix            $prefix"
7134 echo "source path               $source_path"
7135 echo "C compiler                $cc"
7136 echo "C library                 $libc_type"
7137 if test "$host_cc" != "$cc"; then
7138     echo "host C compiler           $host_cc"
7139     echo "host C library            $host_libc_type"
7140 fi
7141 echo "ARCH                      $arch ($cpu)"
7142 if test "$build_suffix" != ""; then
7143     echo "build suffix              $build_suffix"
7144 fi
7145 if test "$progs_suffix" != ""; then
7146     echo "progs suffix              $progs_suffix"
7147 fi
7148 if test "$extra_version" != ""; then
7149     echo "version string suffix     $extra_version"
7150 fi
7151 echo "big-endian                ${bigendian-no}"
7152 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7153 if enabled x86; then
7154     echo "standalone assembly       ${x86asm-no}"
7155     echo "x86 assembler             ${x86asmexe}"
7156     echo "MMX enabled               ${mmx-no}"
7157     echo "MMXEXT enabled            ${mmxext-no}"
7158     echo "3DNow! enabled            ${amd3dnow-no}"
7159     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7160     echo "SSE enabled               ${sse-no}"
7161     echo "SSSE3 enabled             ${ssse3-no}"
7162     echo "AESNI enabled             ${aesni-no}"
7163     echo "AVX enabled               ${avx-no}"
7164     echo "AVX2 enabled              ${avx2-no}"
7165     echo "AVX-512 enabled           ${avx512-no}"
7166     echo "XOP enabled               ${xop-no}"
7167     echo "FMA3 enabled              ${fma3-no}"
7168     echo "FMA4 enabled              ${fma4-no}"
7169     echo "i686 features enabled     ${i686-no}"
7170     echo "CMOV is fast              ${fast_cmov-no}"
7171     echo "EBX available             ${ebx_available-no}"
7172     echo "EBP available             ${ebp_available-no}"
7173 fi
7174 if enabled aarch64; then
7175     echo "NEON enabled              ${neon-no}"
7176     echo "VFP enabled               ${vfp-no}"
7177 fi
7178 if enabled arm; then
7179     echo "ARMv5TE enabled           ${armv5te-no}"
7180     echo "ARMv6 enabled             ${armv6-no}"
7181     echo "ARMv6T2 enabled           ${armv6t2-no}"
7182     echo "VFP enabled               ${vfp-no}"
7183     echo "NEON enabled              ${neon-no}"
7184     echo "THUMB enabled             ${thumb-no}"
7185 fi
7186 if enabled mips; then
7187     echo "MIPS FPU enabled          ${mipsfpu-no}"
7188     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7189     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7190     echo "MIPS MSA enabled          ${msa-no}"
7191     echo "MIPS MSA2 enabled         ${msa2-no}"
7192     echo "LOONGSON MMI enabled      ${mmi-no}"
7193 fi
7194 if enabled ppc; then
7195     echo "AltiVec enabled           ${altivec-no}"
7196     echo "VSX enabled               ${vsx-no}"
7197     echo "POWER8 enabled            ${power8-no}"
7198     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7199     echo "dcbzl available           ${dcbzl-no}"
7200 fi
7201 echo "debug symbols             ${debug-no}"
7202 echo "strip symbols             ${stripping-no}"
7203 echo "optimize for size         ${small-no}"
7204 echo "optimizations             ${optimizations-no}"
7205 echo "static                    ${static-no}"
7206 echo "shared                    ${shared-no}"
7207 echo "postprocessing support    ${postproc-no}"
7208 echo "network support           ${network-no}"
7209 echo "threading support         ${thread_type-no}"
7210 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7211 echo "texi2html enabled         ${texi2html-no}"
7212 echo "perl enabled              ${perl-no}"
7213 echo "pod2man enabled           ${pod2man-no}"
7214 echo "makeinfo enabled          ${makeinfo-no}"
7215 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7216 test -n "$random_seed" &&
7217     echo "random seed               ${random_seed}"
7218 echo
7219
7220 echo "External libraries:"
7221 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7222 echo
7223
7224 echo "External libraries providing hardware acceleration:"
7225 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7226 echo
7227
7228 echo "Libraries:"
7229 print_enabled '' $LIBRARY_LIST | print_in_columns
7230 echo
7231
7232 echo "Programs:"
7233 print_enabled '' $PROGRAM_LIST | print_in_columns
7234 echo
7235
7236 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7237     echo "Enabled ${type}s:"
7238     eval list=\$$(toupper $type)_LIST
7239     print_enabled '_*' $list | print_in_columns
7240     echo
7241 done
7242
7243 if test -n "$ignore_tests"; then
7244     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7245     echo "Ignored FATE tests:"
7246     echo $ignore_tests | print_in_columns
7247     echo
7248 fi
7249
7250 echo "License: $license"
7251
7252 fi # test "$quiet" != "yes"
7253
7254 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7255     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7256         if disabled $cfg; then
7257             varname=${cfg}_disable_reason
7258             eval "warn \"Disabled $cfg because \$$varname\""
7259         fi
7260     done
7261 fi
7262
7263 if test -n "$WARNINGS"; then
7264     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7265     enabled fatal_warnings && exit 1
7266 fi
7267
7268 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7269
7270 esc(){
7271     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7272 }
7273
7274 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7275
7276 enabled stripping || strip="echo skipping strip"
7277 enabled stripping || striptype=""
7278
7279 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7280
7281 cat > ffbuild/config.mak <<EOF
7282 # Automatically generated by configure - do not modify!
7283 ifndef FFMPEG_CONFIG_MAK
7284 FFMPEG_CONFIG_MAK=1
7285 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7286 prefix=$prefix
7287 LIBDIR=\$(DESTDIR)$libdir
7288 SHLIBDIR=\$(DESTDIR)$shlibdir
7289 INCDIR=\$(DESTDIR)$incdir
7290 BINDIR=\$(DESTDIR)$bindir
7291 DATADIR=\$(DESTDIR)$datadir
7292 DOCDIR=\$(DESTDIR)$docdir
7293 MANDIR=\$(DESTDIR)$mandir
7294 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7295 INSTALL_NAME_DIR=$install_name_dir
7296 SRC_PATH=$source_path
7297 SRC_LINK=$source_link
7298 ifndef MAIN_MAKEFILE
7299 SRC_PATH:=\$(SRC_PATH:.%=..%)
7300 endif
7301 CC_IDENT=$cc_ident
7302 ARCH=$arch
7303 INTRINSICS=$intrinsics
7304 EXTERN_PREFIX=$extern_prefix
7305 CC=$cc
7306 CXX=$cxx
7307 AS=$as
7308 OBJCC=$objcc
7309 LD=$ld
7310 DEPCC=$dep_cc
7311 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7312 DEPAS=$as
7313 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7314 X86ASM=$x86asmexe
7315 DEPX86ASM=$x86asmexe
7316 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7317 AR=$ar
7318 ARFLAGS=$arflags
7319 AR_O=$ar_o
7320 AR_CMD=$ar
7321 NM_CMD=$nm
7322 RANLIB=$ranlib
7323 STRIP=$strip
7324 STRIPTYPE=$striptype
7325 NVCC=$nvcc
7326 CP=cp -p
7327 LN_S=$ln_s
7328 CPPFLAGS=$CPPFLAGS
7329 CFLAGS=$CFLAGS
7330 CXXFLAGS=$CXXFLAGS
7331 OBJCFLAGS=$OBJCFLAGS
7332 ASFLAGS=$ASFLAGS
7333 NVCCFLAGS=$nvccflags
7334 AS_C=$AS_C
7335 AS_O=$AS_O
7336 OBJCC_C=$OBJCC_C
7337 OBJCC_E=$OBJCC_E
7338 OBJCC_O=$OBJCC_O
7339 CC_C=$CC_C
7340 CC_E=$CC_E
7341 CC_O=$CC_O
7342 CXX_C=$CXX_C
7343 CXX_O=$CXX_O
7344 NVCC_C=$NVCC_C
7345 NVCC_O=$NVCC_O
7346 LD_O=$LD_O
7347 X86ASM_O=$X86ASM_O
7348 LD_LIB=$LD_LIB
7349 LD_PATH=$LD_PATH
7350 DLLTOOL=$dlltool
7351 WINDRES=$windres
7352 DEPWINDRES=$dep_cc
7353 DOXYGEN=$doxygen
7354 LDFLAGS=$LDFLAGS
7355 LDEXEFLAGS=$LDEXEFLAGS
7356 LDSOFLAGS=$LDSOFLAGS
7357 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7358 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7359 X86ASMFLAGS=$X86ASMFLAGS
7360 BUILDSUF=$build_suffix
7361 PROGSSUF=$progs_suffix
7362 FULLNAME=$FULLNAME
7363 LIBPREF=$LIBPREF
7364 LIBSUF=$LIBSUF
7365 LIBNAME=$LIBNAME
7366 SLIBPREF=$SLIBPREF
7367 SLIBSUF=$SLIBSUF
7368 EXESUF=$EXESUF
7369 EXTRA_VERSION=$extra_version
7370 CCDEP=$CCDEP
7371 CXXDEP=$CXXDEP
7372 CCDEP_FLAGS=$CCDEP_FLAGS
7373 ASDEP=$ASDEP
7374 ASDEP_FLAGS=$ASDEP_FLAGS
7375 X86ASMDEP=$X86ASMDEP
7376 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7377 CC_DEPFLAGS=$CC_DEPFLAGS
7378 AS_DEPFLAGS=$AS_DEPFLAGS
7379 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7380 HOSTCC=$host_cc
7381 HOSTLD=$host_ld
7382 HOSTCFLAGS=$host_cflags
7383 HOSTCPPFLAGS=$host_cppflags
7384 HOSTEXESUF=$HOSTEXESUF
7385 HOSTLDFLAGS=$host_ldflags
7386 HOSTEXTRALIBS=$host_extralibs
7387 DEPHOSTCC=$host_cc
7388 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7389 HOSTCCDEP=$HOSTCCDEP
7390 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7391 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7392 HOSTCC_C=$HOSTCC_C
7393 HOSTCC_O=$HOSTCC_O
7394 HOSTLD_O=$HOSTLD_O
7395 TARGET_EXEC=$target_exec $target_exec_args
7396 TARGET_PATH=$target_path
7397 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7398 CFLAGS-ffplay=${sdl2_cflags}
7399 CFLAGS_HEADERS=$CFLAGS_HEADERS
7400 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7401 EXTRALIBS=$extralibs
7402 COMPAT_OBJS=$compat_objs
7403 INSTALL=$install
7404 LIBTARGET=${LIBTARGET}
7405 SLIBNAME=${SLIBNAME}
7406 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7407 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7408 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7409 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7410 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7411 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7412 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7413 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7414 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7415 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7416 NOREDZONE_FLAGS=$noredzone_flags
7417 LIBFUZZER_PATH=$libfuzzer_path
7418 IGNORE_TESTS=$ignore_tests
7419 EOF
7420
7421 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7422
7423 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7424     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7425 done
7426
7427 cat > $TMPH <<EOF
7428 /* Automatically generated by configure - do not modify! */
7429 #ifndef FFMPEG_CONFIG_H
7430 #define FFMPEG_CONFIG_H
7431 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7432 #define FFMPEG_LICENSE "$(c_escape $license)"
7433 #define CONFIG_THIS_YEAR 2019
7434 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7435 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7436 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7437 #define av_restrict $restrict_keyword
7438 #define EXTERN_PREFIX "${extern_prefix}"
7439 #define EXTERN_ASM ${extern_prefix}
7440 #define BUILDSUF "$build_suffix"
7441 #define SLIBSUF "$SLIBSUF"
7442 #define HAVE_MMX2 HAVE_MMXEXT
7443 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7444 EOF
7445
7446 test -n "$assert_level" &&
7447     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7448
7449 test -n "$malloc_prefix" &&
7450     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7451
7452 if enabled x86asm; then
7453     append config_files $TMPASM
7454     cat > $TMPASM <<EOF
7455 ; Automatically generated by configure - do not modify!
7456 EOF
7457 fi
7458
7459 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7460
7461
7462 mkdir -p doc
7463 mkdir -p tests
7464 mkdir -p tests/api
7465 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7466
7467 print_config ARCH_   "$config_files" $ARCH_LIST
7468 print_config HAVE_   "$config_files" $HAVE_LIST
7469 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7470                                      $CONFIG_EXTRA      \
7471                                      $ALL_COMPONENTS    \
7472
7473 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7474 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7475
7476 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7477 cp_if_changed $TMPH config.h
7478 touch ffbuild/.config
7479
7480 enabled x86asm && cp_if_changed $TMPASM config.asm
7481
7482 cat > $TMPH <<EOF
7483 /* Generated by ffmpeg configure */
7484 #ifndef AVUTIL_AVCONFIG_H
7485 #define AVUTIL_AVCONFIG_H
7486 EOF
7487
7488 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7489
7490 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7491
7492 cp_if_changed $TMPH libavutil/avconfig.h
7493
7494 # full_filter_name_foo=vf_foo
7495 # full_filter_name_bar=asrc_bar
7496 # ...
7497 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7498
7499 # generate the lists of enabled components
7500 print_enabled_components(){
7501     file=$1
7502     struct_name=$2
7503     name=$3
7504     shift 3
7505     echo "static const $struct_name * const $name[] = {" > $TMPH
7506     for c in $*; do
7507         if enabled $c; then
7508             case $name in
7509                 filter_list)
7510                     eval c=\$full_filter_name_${c%_filter}
7511                 ;;
7512                 indev_list)
7513                     c=${c%_indev}_demuxer
7514                 ;;
7515                 outdev_list)
7516                     c=${c%_outdev}_muxer
7517                 ;;
7518             esac
7519             printf "    &ff_%s,\n" $c >> $TMPH
7520         fi
7521     done
7522     if [ "$name" = "filter_list" ]; then
7523         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7524             printf "    &ff_%s,\n" $c >> $TMPH
7525         done
7526     fi
7527     echo "    NULL };" >> $TMPH
7528     cp_if_changed $TMPH $file
7529 }
7530
7531 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7532 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7533 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7534 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7535 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7536 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7537 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7538 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7539 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7540
7541 # Settings for pkg-config files
7542
7543 cat > $TMPH <<EOF
7544 # Automatically generated by configure - do not modify!
7545 shared=$shared
7546 build_suffix=$build_suffix
7547 prefix=$prefix
7548 libdir=$libdir
7549 incdir=$incdir
7550 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7551 source_path=${source_path}
7552 LIBPREF=${LIBPREF}
7553 LIBSUF=${LIBSUF}
7554 extralibs_avutil="$avutil_extralibs"
7555 extralibs_avcodec="$avcodec_extralibs"
7556 extralibs_avformat="$avformat_extralibs"
7557 extralibs_avdevice="$avdevice_extralibs"
7558 extralibs_avfilter="$avfilter_extralibs"
7559 extralibs_avresample="$avresample_extralibs"
7560 extralibs_postproc="$postproc_extralibs"
7561 extralibs_swscale="$swscale_extralibs"
7562 extralibs_swresample="$swresample_extralibs"
7563 EOF
7564
7565 for lib in $LIBRARY_LIST; do
7566     lib_deps="$(eval echo \$${lib}_deps)"
7567     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7568 done
7569
7570 cp_if_changed $TMPH ffbuild/config.sh