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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --quiet                  Suppress showing informative output
  67   --list-decoders          show all available decoders
  68   --list-encoders          show all available encoders
  69   --list-hwaccels          show all available hardware accelerators
  70   --list-demuxers          show all available demuxers
  71   --list-muxers            show all available muxers
  72   --list-parsers           show all available parsers
  73   --list-protocols         show all available protocols
  74   --list-bsfs              show all available bitstream filters
  75   --list-indevs            show all available input devices
  76   --list-outdevs           show all available output devices
  77   --list-filters           show all available filters
  78
  79 Standard options:
  80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
  81   --disable-logging        do not log configure debug information
  82   --fatal-warnings         fail if any configure warning is generated
  83   --prefix=PREFIX          install in PREFIX [$prefix_default]
  84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  87   --libdir=DIR             install libs in DIR [PREFIX/lib]
  88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  89   --incdir=DIR             install includes in DIR [PREFIX/include]
  90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  92   --enable-rpath           use rpath to allow installing libraries in paths
  93                            not part of the dynamic linker search path
  94                            use rpath when linking programs (USE WITH CARE)
  95   --install-name-dir=DIR   Darwin directory name for installed targets
  96
  97 Licensing options:
  98   --enable-gpl             allow use of GPL code, the resulting libs
  99                            and binaries will be under GPL [no]
 100   --enable-version3        upgrade (L)GPL to version 3 [no]
 101   --enable-nonfree         allow use of nonfree code, the resulting libs
 102                            and binaries will be unredistributable [no]
 103
 104 Configuration options:
 105   --disable-static         do not build static libraries [no]
 106   --enable-shared          build shared libraries [no]
 107   --enable-small           optimize for size instead of speed
 108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
 109   --enable-gray            enable full grayscale support (slower color)
 110   --disable-swscale-alpha  disable alpha channel support in swscale
 111   --disable-all            disable building components, libraries and programs
 112   --disable-autodetect     disable automatically detected external libraries [no]
 113
 114 Program options:
 115   --disable-programs       do not build command line programs
 116   --disable-ffmpeg         disable ffmpeg build
 117   --disable-ffplay         disable ffplay build
 118   --disable-ffprobe        disable ffprobe build
 119
 120 Documentation options:
 121   --disable-doc            do not build documentation
 122   --disable-htmlpages      do not build HTML documentation pages
 123   --disable-manpages       do not build man documentation pages
 124   --disable-podpages       do not build POD documentation pages
 125   --disable-txtpages       do not build text documentation pages
 126
 127 Component options:
 128   --disable-avdevice       disable libavdevice build
 129   --disable-avcodec        disable libavcodec build
 130   --disable-avformat       disable libavformat build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build (deprecated) [no]
 136   --disable-pthreads       disable pthreads [autodetect]
 137   --disable-w32threads     disable Win32 threads [autodetect]
 138   --disable-os2threads     disable OS/2 threads [autodetect]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Individual component options:
 152   --disable-everything     disable all components listed below
 153   --disable-encoder=NAME   disable encoder NAME
 154   --enable-encoder=NAME    enable encoder NAME
 155   --disable-encoders       disable all encoders
 156   --disable-decoder=NAME   disable decoder NAME
 157   --enable-decoder=NAME    enable decoder NAME
 158   --disable-decoders       disable all decoders
 159   --disable-hwaccel=NAME   disable hwaccel NAME
 160   --enable-hwaccel=NAME    enable hwaccel NAME
 161   --disable-hwaccels       disable all hwaccels
 162   --disable-muxer=NAME     disable muxer NAME
 163   --enable-muxer=NAME      enable muxer NAME
 164   --disable-muxers         disable all muxers
 165   --disable-demuxer=NAME   disable demuxer NAME
 166   --enable-demuxer=NAME    enable demuxer NAME
 167   --disable-demuxers       disable all demuxers
 168   --enable-parser=NAME     enable parser NAME
 169   --disable-parser=NAME    disable parser NAME
 170   --disable-parsers        disable all parsers
 171   --enable-bsf=NAME        enable bitstream filter NAME
 172   --disable-bsf=NAME       disable bitstream filter NAME
 173   --disable-bsfs           disable all bitstream filters
 174   --enable-protocol=NAME   enable protocol NAME
 175   --disable-protocol=NAME  disable protocol NAME
 176   --disable-protocols      disable all protocols
 177   --enable-indev=NAME      enable input device NAME
 178   --disable-indev=NAME     disable input device NAME
 179   --disable-indevs         disable input devices
 180   --enable-outdev=NAME     enable output device NAME
 181   --disable-outdev=NAME    disable output device NAME
 182   --disable-outdevs        disable output devices
 183   --disable-devices        disable all devices
 184   --enable-filter=NAME     enable filter NAME
 185   --disable-filter=NAME    disable filter NAME
 186   --disable-filters        disable all filters
 187
 188 External library support:
 189
 190   Using any of the following switches will allow FFmpeg to link to the
 191   corresponding external library. All the components depending on that library
 192   will become enabled, if all their other dependencies are met and they are not
 193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 194   libwavpack and allow the libwavpack encoder to be built, unless it is
 195   specifically disabled with --disable-encoder=libwavpack.
 196
 197   Note that only the system libraries are auto-detected. All the other external
 198   libraries must be explicitly enabled.
 199
 200   Also note that the following help text describes the purpose of the libraries
 201   themselves, not all their features will necessarily be usable by FFmpeg.
 202
 203   --disable-alsa           disable ALSA support [autodetect]
 204   --disable-appkit         disable Apple AppKit framework [autodetect]
 205   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
 206   --enable-avisynth        enable reading of AviSynth script files [no]
 207   --disable-bzlib          disable bzlib [autodetect]
 208   --disable-coreimage      disable Apple CoreImage framework [autodetect]
 209   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 210   --enable-frei0r          enable frei0r video filtering [no]
 211   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 212                            if openssl, librtmp or gmp is not used [no]
 213   --enable-gmp             enable gmp, needed for rtmp(t)e support
 214                            if openssl or librtmp is not used [no]
 215   --enable-gnutls          enable gnutls, needed for https support
 216                            if openssl, libtls or mbedtls is not used [no]
 217   --disable-iconv          disable iconv [autodetect]
 218   --enable-jni             enable JNI support [no]
 219   --enable-ladspa          enable LADSPA audio filtering [no]
 220   --enable-libaom          enable AV1 video encoding/decoding via libaom [no]
 221   --enable-libaribb24      enable ARIB text and caption decoding via libaribb24 [no]
 222   --enable-libass          enable libass subtitles rendering,
 223                            needed for subtitles and ass filter [no]
 224   --enable-libbluray       enable BluRay reading using libbluray [no]
 225   --enable-libbs2b         enable bs2b DSP library [no]
 226   --enable-libcaca         enable textual display using libcaca [no]
 227   --enable-libcelt         enable CELT decoding via libcelt [no]
 228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 229   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
 230   --enable-libdav1d        enable AV1 decoding via libdav1d [no]
 231   --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
 232   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 233                            and libraw1394 [no]
 234   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 235   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 236   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 237   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 238   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 239   --enable-libgme          enable Game Music Emu via libgme [no]
 240   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 241   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 242   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 243   --enable-libjack         enable JACK audio sound server [no]
 244   --enable-libklvanc       enable Kernel Labs VANC processing [no]
 245   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 246   --enable-liblensfun      enable lensfun lens correction [no]
 247   --enable-libmodplug      enable ModPlug via libmodplug [no]
 248   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 249   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 250   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 251   --enable-libopencv       enable video filtering via libopencv [no]
 252   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 253   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 254   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 255   --enable-libopus         enable Opus de/encoding via libopus [no]
 256   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 257   --enable-librav1e        enable AV1 encoding via rav1e [no]
 258   --enable-librsvg         enable SVG rasterization via librsvg [no]
 259   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 260   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 261   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 262   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 263   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 264   --enable-libsoxr         enable Include libsoxr resampling [no]
 265   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 266   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
 267   --enable-libssh          enable SFTP protocol via libssh [no]
 268   --enable-libtensorflow   enable TensorFlow as a DNN module backend
 269                            for DNN based filters like sr [no]
 270   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 271   --enable-libtheora       enable Theora encoding via libtheora [no]
 272   --enable-libtls          enable LibreSSL (via libtls), needed for https support
 273                            if openssl, gnutls or mbedtls is not used [no]
 274   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 275   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 276   --enable-libvidstab      enable video stabilization using vid.stab [no]
 277   --enable-libvmaf         enable vmaf filter via libvmaf [no]
 278   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 279   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 280                            native implementation exists [no]
 281   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 282   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 283   --enable-libwebp         enable WebP encoding via libwebp [no]
 284   --enable-libx264         enable H.264 encoding via x264 [no]
 285   --enable-libx265         enable HEVC encoding via x265 [no]
 286   --enable-libxavs         enable AVS encoding via xavs [no]
 287   --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
 288   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 289   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 290   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 291   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 292   --enable-libxvid         enable Xvid encoding via xvidcore,
 293                            native MPEG-4/Xvid encoder exists [no]
 294   --enable-libxml2         enable XML parsing using the C library libxml2, needed
 295                            for dash demuxing support [no]
 296   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 297   --enable-libzmq          enable message passing via libzmq [no]
 298   --enable-libzvbi         enable teletext support via libzvbi [no]
 299   --enable-lv2             enable LV2 audio filtering [no]
 300   --disable-lzma           disable lzma [autodetect]
 301   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 302   --enable-mbedtls         enable mbedTLS, needed for https support
 303                            if openssl, gnutls or libtls is not used [no]
 304   --enable-mediacodec      enable Android MediaCodec support [no]
 305   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
 306   --enable-openal          enable OpenAL 1.1 capture support [no]
 307   --enable-opencl          enable OpenCL processing [no]
 308   --enable-opengl          enable OpenGL rendering [no]
 309   --enable-openssl         enable openssl, needed for https support
 310                            if gnutls, libtls or mbedtls is not used [no]
 311   --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
 312   --disable-sndio          disable sndio support [autodetect]
 313   --disable-schannel       disable SChannel SSP, needed for TLS support on
 314                            Windows if openssl and gnutls are not used [autodetect]
 315   --disable-sdl2           disable sdl2 [autodetect]
 316   --disable-securetransport disable Secure Transport, needed for TLS support
 317                            on OSX if openssl and gnutls are not used [autodetect]
 318   --enable-vapoursynth     enable VapourSynth demuxer [no]
 319   --disable-xlib           disable xlib [autodetect]
 320   --disable-zlib           disable zlib [autodetect]
 321
 322   The following libraries provide various hardware acceleration features:
 323   --disable-amf            disable AMF video encoding code [autodetect]
 324   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 325   --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
 326   --disable-cuda-llvm      disable CUDA compilation using clang [autodetect]
 327   --disable-cuvid          disable Nvidia CUVID support [autodetect]
 328   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 329   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 330   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
 331   --enable-libdrm          enable DRM code (Linux) [no]
 332   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 333   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 334   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 335   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
 336   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 337   --enable-omx             enable OpenMAX IL code [no]
 338   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 339   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
 340   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
 341   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 342   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 343   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 344
 345 Toolchain options:
 346   --arch=ARCH              select architecture [$arch]
 347   --cpu=CPU                select the minimum required CPU (affects
 348                            instruction selection, may crash on older CPUs)
 349   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 350   --progs-suffix=SUFFIX    program name suffix []
 351   --enable-cross-compile   assume a cross-compiler is used
 352   --sysroot=PATH           root of cross-build tree
 353   --sysinclude=PATH        location of cross-build system headers
 354   --target-os=OS           compiler targets OS [$target_os]
 355   --target-exec=CMD        command to run executables on target
 356   --target-path=DIR        path to view of build directory on target
 357   --target-samples=DIR     path to samples directory on target
 358   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 359   --toolchain=NAME         set tool defaults according to NAME
 360                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
 361                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
 362                            valgrind-massif, valgrind-memcheck,
 363                            msvc, icl, gcov, llvm-cov, hardened)
 364   --nm=NM                  use nm tool NM [$nm_default]
 365   --ar=AR                  use archive tool AR [$ar_default]
 366   --as=AS                  use assembler AS [$as_default]
 367   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 368   --strip=STRIP            use strip tool STRIP [$strip_default]
 369   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 370   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
 371   --cc=CC                  use C compiler CC [$cc_default]
 372   --cxx=CXX                use C compiler CXX [$cxx_default]
 373   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 374   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 375   --nvcc=NVCC              use Nvidia CUDA compiler NVCC or clang [$nvcc_default]
 376   --ld=LD                  use linker LD [$ld_default]
 377   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 378   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 379   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 380   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 381   --host-cc=HOSTCC         use host C compiler HOSTCC
 382   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 383   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 384   --host-ld=HOSTLD         use host linker HOSTLD
 385   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 386   --host-extralibs=HLIBS   use libs HLIBS when linking for host
 387   --host-os=OS             compiler host OS [$target_os]
 388   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 389   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 390   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 391   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 392   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 393   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
 394   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 395   --extra-version=STRING   version string suffix []
 396   --optflags=OPTFLAGS      override optimization-related compiler flags
 397   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
 398   --build-suffix=SUFFIX    library name suffix []
 399   --enable-pic             build position-independent code
 400   --enable-thumb           compile for Thumb instruction set
 401   --enable-lto             use link-time optimization
 402   --env="ENV=override"     override the environment variables
 403
 404 Advanced options (experts only):
 405   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 406   --custom-allocator=NAME  use a supported custom allocator
 407   --disable-symver         disable symbol versioning
 408   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 409   --disable-safe-bitstream-reader
 410                            disable buffer boundary checking in bitreaders
 411                            (faster, but may crash)
 412   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 413
 414 Optimization options (experts only):
 415   --disable-asm            disable all assembly optimizations
 416   --disable-altivec        disable AltiVec optimizations
 417   --disable-vsx            disable VSX optimizations
 418   --disable-power8         disable POWER8 optimizations
 419   --disable-amd3dnow       disable 3DNow! optimizations
 420   --disable-amd3dnowext    disable 3DNow! extended optimizations
 421   --disable-mmx            disable MMX optimizations
 422   --disable-mmxext         disable MMXEXT optimizations
 423   --disable-sse            disable SSE optimizations
 424   --disable-sse2           disable SSE2 optimizations
 425   --disable-sse3           disable SSE3 optimizations
 426   --disable-ssse3          disable SSSE3 optimizations
 427   --disable-sse4           disable SSE4 optimizations
 428   --disable-sse42          disable SSE4.2 optimizations
 429   --disable-avx            disable AVX optimizations
 430   --disable-xop            disable XOP optimizations
 431   --disable-fma3           disable FMA3 optimizations
 432   --disable-fma4           disable FMA4 optimizations
 433   --disable-avx2           disable AVX2 optimizations
 434   --disable-avx512         disable AVX-512 optimizations
 435   --disable-aesni          disable AESNI optimizations
 436   --disable-armv5te        disable armv5te optimizations
 437   --disable-armv6          disable armv6 optimizations
 438   --disable-armv6t2        disable armv6t2 optimizations
 439   --disable-vfp            disable VFP optimizations
 440   --disable-neon           disable NEON optimizations
 441   --disable-inline-asm     disable use of inline assembly
 442   --disable-x86asm         disable use of standalone x86 assembly
 443   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 444   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 445   --disable-msa            disable MSA optimizations
 446   --disable-msa2           disable MSA2 optimizations
 447   --disable-mipsfpu        disable floating point MIPS optimizations
 448   --disable-mmi            disable Loongson SIMD optimizations
 449   --disable-fast-unaligned consider unaligned accesses slow
 450
 451 Developer options (useful when working on FFmpeg itself):
 452   --disable-debug          disable debugging symbols
 453   --enable-debug=LEVEL     set the debug level [$debuglevel]
 454   --disable-optimizations  disable compiler optimizations
 455   --enable-extra-warnings  enable more compiler warnings
 456   --disable-stripping      disable stripping of executables and shared libraries
 457   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 458                            2 causes a slowdown at runtime.
 459   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 460   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 461                            leaks and errors, using the specified valgrind binary.
 462                            Cannot be combined with --target-exec
 463   --enable-ftrapv          Trap arithmetic overflows
 464   --samples=PATH           location of test samples for FATE, if not set use
 465                            \$FATE_SAMPLES at make invocation time.
 466   --enable-neon-clobber-test check NEON registers for clobbering (should be
 467                            used only for debugging purposes)
 468   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 469                            should be used only for debugging purposes)
 470   --enable-random          randomly enable/disable components
 471   --disable-random
 472   --enable-random=LIST     randomly enable/disable specific components or
 473   --disable-random=LIST    component groups. LIST is a comma-separated list
 474                            of NAME[:PROB] entries where NAME is a component
 475                            (group) and PROB the probability associated with
 476                            NAME (default 0.5).
 477   --random-seed=VALUE      seed value for --enable/disable-random
 478   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 479                            (only applies to --disable-optimizations builds)
 480   --enable-ossfuzz         Enable building fuzzer tool
 481   --libfuzzer=PATH         path to libfuzzer
 482   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 483                            in the name) of tests whose result is ignored
 484   --enable-linux-perf      enable Linux Performance Monitor API
 485
 486 NOTE: Object files are built at the place where configure is launched.
 487 EOF
 488   exit 0
 489 }
 490
 491 if test -t 1 && which tput >/dev/null 2>&1; then
 492     ncolors=$(tput colors)
 493     if test -n "$ncolors" && test $ncolors -ge 8; then
 494         bold_color=$(tput bold)
 495         warn_color=$(tput setaf 3)
 496         error_color=$(tput setaf 1)
 497         reset_color=$(tput sgr0)
 498     fi
 499     # 72 used instead of 80 since that's the default of pr
 500     ncols=$(tput cols)
 501 fi
 502 : ${ncols:=72}
 503
 504 log(){
 505     echo "$@" >> $logfile
 506 }
 507
 508 log_file(){
 509     log BEGIN "$1"
 510     log_file_i=1
 511     while IFS= read -r log_file_line; do
 512         printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
 513         log_file_i=$(($log_file_i+1))
 514     done < "$1" >> "$logfile"
 515     log END "$1"
 516 }
 517
 518 warn(){
 519     log "WARNING: $*"
 520     WARNINGS="${WARNINGS}WARNING: $*\n"
 521 }
 522
 523 die(){
 524     log "$@"
 525     echo "$error_color$bold_color$@$reset_color"
 526     cat <<EOF
 527
 528 If you think configure made a mistake, make sure you are using the latest
 529 version from Git.  If the latest version fails, report the problem to the
 530 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 531 EOF
 532     if disabled logging; then
 533         cat <<EOF
 534 Rerun configure with logging enabled (do not use --disable-logging), and
 535 include the log this produces with your report.
 536 EOF
 537     else
 538         cat <<EOF
 539 Include the log file "$logfile" produced by configure as this will help
 540 solve the problem.
 541 EOF
 542     fi
 543     exit 1
 544 }
 545
 546 # Avoid locale weirdness, besides we really just want to translate ASCII.
 547 toupper(){
 548     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 549 }
 550
 551 tolower(){
 552     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 553 }
 554
 555 c_escape(){
 556     echo "$*" | sed 's/["\\]/\\\0/g'
 557 }
 558
 559 sh_quote(){
 560     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 561     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 562     echo "$v"
 563 }
 564
 565 cleanws(){
 566     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 567 }
 568
 569 filter(){
 570     pat=$1
 571     shift
 572     for v; do
 573         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
 574     done
 575 }
 576
 577 filter_out(){
 578     pat=$1
 579     shift
 580     for v; do
 581         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
 582     done
 583 }
 584
 585 map(){
 586     m=$1
 587     shift
 588     for v; do eval $m; done
 589 }
 590
 591 add_suffix(){
 592     suffix=$1
 593     shift
 594     for v; do echo ${v}${suffix}; done
 595 }
 596
 597 remove_suffix(){
 598     suffix=$1
 599     shift
 600     for v; do echo ${v%$suffix}; done
 601 }
 602
 603 set_all(){
 604     value=$1
 605     shift
 606     for var in $*; do
 607         eval $var=$value
 608     done
 609 }
 610
 611 set_weak(){
 612     value=$1
 613     shift
 614     for var; do
 615         eval : \${$var:=$value}
 616     done
 617 }
 618
 619 sanitize_var_name(){
 620     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 621 }
 622
 623 set_sanitized(){
 624     var=$1
 625     shift
 626     eval $(sanitize_var_name "$var")='$*'
 627 }
 628
 629 get_sanitized(){
 630     eval echo \$$(sanitize_var_name "$1")
 631 }
 632
 633 pushvar(){
 634     for pvar in $*; do
 635         eval level=\${${pvar}_level:=0}
 636         eval ${pvar}_${level}="\$$pvar"
 637         eval ${pvar}_level=$(($level+1))
 638     done
 639 }
 640
 641 popvar(){
 642     for pvar in $*; do
 643         eval level=\${${pvar}_level:-0}
 644         test $level = 0 && continue
 645         eval level=$(($level-1))
 646         eval $pvar="\${${pvar}_${level}}"
 647         eval ${pvar}_level=$level
 648         eval unset ${pvar}_${level}
 649     done
 650 }
 651
 652 request(){
 653     for var in $*; do
 654         eval ${var}_requested=yes
 655         eval $var=
 656     done
 657 }
 658
 659 warn_if_gets_disabled(){
 660     for var in $*; do
 661         WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
 662     done
 663 }
 664
 665 enable(){
 666     set_all yes $*
 667 }
 668
 669 disable(){
 670     set_all no $*
 671 }
 672
 673 disable_with_reason(){
 674     disable $1
 675     eval "${1}_disable_reason=\"$2\""
 676     if requested $1; then
 677         die "ERROR: $1 requested, but $2"
 678     fi
 679 }
 680
 681 enable_weak(){
 682     set_weak yes $*
 683 }
 684
 685 disable_weak(){
 686     set_weak no $*
 687 }
 688
 689 enable_sanitized(){
 690     for var; do
 691         enable $(sanitize_var_name $var)
 692     done
 693 }
 694
 695 disable_sanitized(){
 696     for var; do
 697         disable $(sanitize_var_name $var)
 698     done
 699 }
 700
 701 do_enable_deep(){
 702     for var; do
 703         enabled $var && continue
 704         set -- $var
 705         eval enable_deep \$${var}_select
 706         var=$1
 707         eval enable_deep_weak \$${var}_suggest
 708     done
 709 }
 710
 711 enable_deep(){
 712     do_enable_deep $*
 713     enable $*
 714 }
 715
 716 enable_deep_weak(){
 717     for var; do
 718         disabled $var && continue
 719         set -- $var
 720         do_enable_deep $var
 721         var=$1
 722         enable_weak $var
 723     done
 724 }
 725
 726 requested(){
 727     test "${1#!}" = "$1" && op="=" || op="!="
 728     eval test "x\$${1#!}_requested" $op "xyes"
 729 }
 730
 731 enabled(){
 732     test "${1#!}" = "$1" && op="=" || op="!="
 733     eval test "x\$${1#!}" $op "xyes"
 734 }
 735
 736 disabled(){
 737     test "${1#!}" = "$1" && op="=" || op="!="
 738     eval test "x\$${1#!}" $op "xno"
 739 }
 740
 741 enabled_all(){
 742     for opt; do
 743         enabled $opt || return 1
 744     done
 745 }
 746
 747 disabled_all(){
 748     for opt; do
 749         disabled $opt || return 1
 750     done
 751 }
 752
 753 enabled_any(){
 754     for opt; do
 755         enabled $opt && return 0
 756     done
 757 }
 758
 759 disabled_any(){
 760     for opt; do
 761         disabled $opt && return 0
 762     done
 763     return 1
 764 }
 765
 766 set_default(){
 767     for opt; do
 768         eval : \${$opt:=\$${opt}_default}
 769     done
 770 }
 771
 772 is_in(){
 773     value=$1
 774     shift
 775     for var in $*; do
 776         [ $var = $value ] && return 0
 777     done
 778     return 1
 779 }
 780
 781 # The cfg loop is very hot (several thousands iterations), and in bash also
 782 # potentialy quite slow. Try to abort the iterations early, preferably without
 783 # calling functions. 70%+ of the time cfg is already done or without deps.
 784 check_deps(){
 785     for cfg; do
 786         eval [ x\$${cfg}_checking = xdone ] && continue
 787         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
 788
 789         eval "
 790         dep_all=\$${cfg}_deps
 791         dep_any=\$${cfg}_deps_any
 792         dep_con=\$${cfg}_conflict
 793         dep_sel=\$${cfg}_select
 794         dep_sgs=\$${cfg}_suggest
 795         dep_ifa=\$${cfg}_if
 796         dep_ifn=\$${cfg}_if_any
 797         "
 798
 799         # most of the time here $cfg has no deps - avoid costly no-op work
 800         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
 801             eval ${cfg}_checking=inprogress
 802
 803             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
 804             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
 805             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
 806
 807             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 808             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 809             enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
 810             enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
 811             disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
 812             disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
 813
 814             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
 815
 816             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
 817                 # filter out library deps, these do not belong in extralibs
 818                 is_in $dep $LIBRARY_LIST && continue
 819                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
 820             done
 821         fi
 822
 823         eval ${cfg}_checking=done
 824     done
 825 }
 826
 827 print_config(){
 828     pfx=$1
 829     files=$2
 830     shift 2
 831     map 'eval echo "$v \${$v:-no}"' "$@" |
 832     awk "BEGIN { split(\"$files\", files) }
 833         {
 834             c = \"$pfx\" toupper(\$1);
 835             v = \$2;
 836             sub(/yes/, 1, v);
 837             sub(/no/,  0, v);
 838             for (f in files) {
 839                 file = files[f];
 840                 if (file ~ /\\.h\$/) {
 841                     printf(\"#define %s %d\\n\", c, v) >>file;
 842                 } else if (file ~ /\\.asm\$/) {
 843                     printf(\"%%define %s %d\\n\", c, v) >>file;
 844                 } else if (file ~ /\\.mak\$/) {
 845                     n = -v ? \"\" : \"!\";
 846                     printf(\"%s%s=yes\\n\", n, c) >>file;
 847                 } else if (file ~ /\\.texi\$/) {
 848                     pre = -v ? \"\" : \"@c \";
 849                     yesno = \$2;
 850                     c2 = tolower(c);
 851                     gsub(/_/, \"-\", c2);
 852                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 853                 }
 854             }
 855         }"
 856 }
 857
 858 print_enabled(){
 859     suf=$1
 860     shift
 861     for v; do
 862         enabled $v && printf "%s\n" ${v%$suf}
 863     done
 864 }
 865
 866 append(){
 867     var=$1
 868     shift
 869     eval "$var=\"\$$var $*\""
 870 }
 871
 872 prepend(){
 873     var=$1
 874     shift
 875     eval "$var=\"$* \$$var\""
 876 }
 877
 878 reverse () {
 879     eval '
 880         reverse_out=
 881         for v in $'$1'; do
 882             reverse_out="$v $reverse_out"
 883         done
 884         '$1'=$reverse_out
 885     '
 886 }
 887
 888 # keeps the last occurence of each non-unique item
 889 unique(){
 890     unique_out=
 891     eval unique_in=\$$1
 892     reverse unique_in
 893     for v in $unique_in; do
 894         # " $unique_out" +space such that every item is surrounded with spaces
 895         case " $unique_out" in *" $v "*) continue; esac  # already in list
 896         unique_out="$unique_out$v "
 897     done
 898     reverse unique_out
 899     eval $1=\$unique_out
 900 }
 901
 902 resolve(){
 903     resolve_out=
 904     eval resolve_in=\$$1
 905     for v in $resolve_in; do
 906         eval 'resolve_out="$resolve_out$'$v' "'
 907     done
 908     eval $1=\$resolve_out
 909 }
 910
 911 add_cppflags(){
 912     append CPPFLAGS "$@"
 913 }
 914
 915 add_cflags(){
 916     append CFLAGS $($cflags_filter "$@")
 917 }
 918
 919 add_cflags_headers(){
 920     append CFLAGS_HEADERS $($cflags_filter "$@")
 921 }
 922
 923 add_cxxflags(){
 924     append CXXFLAGS $($cflags_filter "$@")
 925 }
 926
 927 add_objcflags(){
 928     append OBJCFLAGS $($objcflags_filter "$@")
 929 }
 930
 931 add_asflags(){
 932     append ASFLAGS $($asflags_filter "$@")
 933 }
 934
 935 add_ldflags(){
 936     append LDFLAGS $($ldflags_filter "$@")
 937 }
 938
 939 add_ldexeflags(){
 940     append LDEXEFLAGS $($ldflags_filter "$@")
 941 }
 942
 943 add_ldsoflags(){
 944     append LDSOFLAGS $($ldflags_filter "$@")
 945 }
 946
 947 add_extralibs(){
 948     prepend extralibs $($ldflags_filter "$@")
 949 }
 950
 951 add_stripflags(){
 952     append ASMSTRIPFLAGS "$@"
 953 }
 954
 955 add_host_cppflags(){
 956     append host_cppflags "$@"
 957 }
 958
 959 add_host_cflags(){
 960     append host_cflags $($host_cflags_filter "$@")
 961 }
 962
 963 add_host_ldflags(){
 964     append host_ldflags $($host_ldflags_filter "$@")
 965 }
 966
 967 add_compat(){
 968     append compat_objs $1
 969     shift
 970     map 'add_cppflags -D$v' "$@"
 971 }
 972
 973 test_cmd(){
 974     log "$@"
 975     "$@" >> $logfile 2>&1
 976 }
 977
 978 test_stat(){
 979     log test_stat "$@"
 980     stat "$1" >> $logfile 2>&1
 981 }
 982
 983 cc_e(){
 984     eval printf '%s\\n' $CC_E
 985 }
 986
 987 cc_o(){
 988     eval printf '%s\\n' $CC_O
 989 }
 990
 991 as_o(){
 992     eval printf '%s\\n' $AS_O
 993 }
 994
 995 x86asm_o(){
 996     eval printf '%s\\n' $X86ASM_O
 997 }
 998
 999 ld_o(){
1000     eval printf '%s\\n' $LD_O
1001 }
1002
1003 hostcc_e(){
1004     eval printf '%s\\n' $HOSTCC_E
1005 }
1006
1007 hostcc_o(){
1008     eval printf '%s\\n' $HOSTCC_O
1009 }
1010
1011 nvcc_o(){
1012     eval printf '%s\\n' $NVCC_O
1013 }
1014
1015 test_cc(){
1016     log test_cc "$@"
1017     cat > $TMPC
1018     log_file $TMPC
1019     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
1020 }
1021
1022 test_cxx(){
1023     log test_cxx "$@"
1024     cat > $TMPCPP
1025     log_file $TMPCPP
1026     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1027 }
1028
1029 test_objcc(){
1030     log test_objcc "$@"
1031     cat > $TMPM
1032     log_file $TMPM
1033     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1034 }
1035
1036 test_nvcc(){
1037     log test_nvcc "$@"
1038     cat > $TMPCU
1039     log_file $TMPCU
1040     tmpcu_=$TMPCU
1041     tmpo_=$TMPO
1042     [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
1043     test_cmd $nvcc $nvccflags "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
1044 }
1045
1046 check_nvcc() {
1047     log check_nvcc "$@"
1048     name=$1
1049     shift 1
1050     disabled $name && return
1051     disable $name
1052     test_nvcc "$@" <<EOF && enable $name
1053 extern "C" {
1054     __global__ void hello(unsigned char *data) {}
1055 }
1056 EOF
1057 }
1058
1059 test_cpp(){
1060     log test_cpp "$@"
1061     cat > $TMPC
1062     log_file $TMPC
1063     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1064 }
1065
1066 test_as(){
1067     log test_as "$@"
1068     cat > $TMPS
1069     log_file $TMPS
1070     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1071 }
1072
1073 test_x86asm(){
1074     log test_x86asm "$@"
1075     echo "$1" > $TMPASM
1076     log_file $TMPASM
1077     shift
1078     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1079 }
1080
1081 check_cmd(){
1082     log check_cmd "$@"
1083     cmd=$1
1084     disabled $cmd && return
1085     disable $cmd
1086     test_cmd $@ && enable $cmd
1087 }
1088
1089 check_as(){
1090     log check_as "$@"
1091     name=$1
1092     code=$2
1093     shift 2
1094     disable $name
1095     test_as $@ <<EOF && enable $name
1096 $code
1097 EOF
1098 }
1099
1100 check_inline_asm(){
1101     log check_inline_asm "$@"
1102     name="$1"
1103     code="$2"
1104     shift 2
1105     disable $name
1106     test_cc "$@" <<EOF && enable $name
1107 void foo(void){ __asm__ volatile($code); }
1108 EOF
1109 }
1110
1111 check_inline_asm_flags(){
1112     log check_inline_asm_flags "$@"
1113     name="$1"
1114     code="$2"
1115     flags=''
1116     shift 2
1117     while [ "$1" != "" ]; do
1118       append flags $1
1119       shift
1120     done;
1121     disable $name
1122     cat > $TMPC <<EOF
1123 void foo(void){ __asm__ volatile($code); }
1124 EOF
1125     log_file $TMPC
1126     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1127     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1128 }
1129
1130 check_insn(){
1131     log check_insn "$@"
1132     check_inline_asm ${1}_inline "\"$2\""
1133     check_as ${1}_external "$2"
1134 }
1135
1136 check_x86asm(){
1137     log check_x86asm "$@"
1138     name=$1
1139     shift
1140     disable $name
1141     test_x86asm "$@" && enable $name
1142 }
1143
1144 test_ld(){
1145     log test_ld "$@"
1146     type=$1
1147     shift 1
1148     flags=$(filter_out '-l*|*.so' $@)
1149     libs=$(filter '-l*|*.so' $@)
1150     test_$type $($cflags_filter $flags) || return
1151     flags=$($ldflags_filter $flags)
1152     libs=$($ldflags_filter $libs)
1153     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1154 }
1155
1156 check_ld(){
1157     log check_ld "$@"
1158     type=$1
1159     name=$2
1160     shift 2
1161     disable $name
1162     test_ld $type $@ && enable $name
1163 }
1164
1165 print_include(){
1166     hdr=$1
1167     test "${hdr%.h}" = "${hdr}" &&
1168         echo "#include $hdr"    ||
1169         echo "#include <$hdr>"
1170 }
1171
1172 test_code(){
1173     log test_code "$@"
1174     check=$1
1175     headers=$2
1176     code=$3
1177     shift 3
1178     {
1179         for hdr in $headers; do
1180             print_include $hdr
1181         done
1182         echo "int main(void) { $code; return 0; }"
1183     } | test_$check "$@"
1184 }
1185
1186 check_cppflags(){
1187     log check_cppflags "$@"
1188     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1189 #include <stdlib.h>
1190 EOF
1191 }
1192
1193 test_cflags(){
1194     log test_cflags "$@"
1195     set -- $($cflags_filter "$@")
1196     test_cc "$@" <<EOF
1197 int x;
1198 EOF
1199 }
1200
1201 check_cflags(){
1202     log check_cflags "$@"
1203     test_cflags "$@" && add_cflags "$@"
1204 }
1205
1206 check_cxxflags(){
1207     log check_cxxflags "$@"
1208     set -- $($cflags_filter "$@")
1209     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1210 int x;
1211 EOF
1212 }
1213
1214 test_objcflags(){
1215     log test_objcflags "$@"
1216     set -- $($objcflags_filter "$@")
1217     test_objcc "$@" <<EOF
1218 int x;
1219 EOF
1220 }
1221
1222 check_objcflags(){
1223     log check_objcflags "$@"
1224     test_objcflags "$@" && add_objcflags "$@"
1225 }
1226
1227 test_ldflags(){
1228     log test_ldflags "$@"
1229     set -- $($ldflags_filter "$@")
1230     test_ld "cc" "$@" <<EOF
1231 int main(void){ return 0; }
1232 EOF
1233 }
1234
1235 check_ldflags(){
1236     log check_ldflags "$@"
1237     test_ldflags "$@" && add_ldflags "$@"
1238 }
1239
1240 test_stripflags(){
1241     log test_stripflags "$@"
1242     # call test_cc to get a fresh TMPO
1243     test_cc <<EOF
1244 int main(void) { return 0; }
1245 EOF
1246     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1247 }
1248
1249 check_stripflags(){
1250     log check_stripflags "$@"
1251     test_stripflags "$@" && add_stripflags "$@"
1252 }
1253
1254 check_headers(){
1255     log check_headers "$@"
1256     headers=$1
1257     shift
1258     disable_sanitized $headers
1259     {
1260         for hdr in $headers; do
1261             print_include $hdr
1262         done
1263         echo "int x;"
1264     } | test_cpp "$@" && enable_sanitized $headers
1265 }
1266
1267 check_header_objcc(){
1268     log check_header_objcc "$@"
1269     rm -f -- "$TMPO"
1270     header=$1
1271     shift
1272     disable_sanitized $header
1273     {
1274        echo "#include <$header>"
1275        echo "int main(void) { return 0; }"
1276     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1277 }
1278
1279 check_apple_framework(){
1280     log check_apple_framework "$@"
1281     framework="$1"
1282     name="$(tolower $framework)"
1283     header="${framework}/${framework}.h"
1284     disable $name
1285     check_header_objcc $header &&
1286         enable $name && eval ${name}_extralibs='"-framework $framework"'
1287 }
1288
1289 check_func(){
1290     log check_func "$@"
1291     func=$1
1292     shift
1293     disable $func
1294     test_ld "cc" "$@" <<EOF && enable $func
1295 extern int $func();
1296 int main(void){ $func(); }
1297 EOF
1298 }
1299
1300 check_complexfunc(){
1301     log check_complexfunc "$@"
1302     func=$1
1303     narg=$2
1304     shift 2
1305     test $narg = 2 && args="f, g" || args="f * I"
1306     disable $func
1307     test_ld "cc" "$@" <<EOF && enable $func
1308 #include <complex.h>
1309 #include <math.h>
1310 float foo(complex float f, complex float g) { return $func($args); }
1311 int main(void){ return (int) foo; }
1312 EOF
1313 }
1314
1315 check_mathfunc(){
1316     log check_mathfunc "$@"
1317     func=$1
1318     narg=$2
1319     shift 2
1320     test $narg = 2 && args="f, g" || args="f"
1321     disable $func
1322     test_ld "cc" "$@" <<EOF && enable $func
1323 #include <math.h>
1324 float foo(float f, float g) { return $func($args); }
1325 int main(void){ return (int) foo; }
1326 EOF
1327 }
1328
1329 check_func_headers(){
1330     log check_func_headers "$@"
1331     headers=$1
1332     funcs=$2
1333     shift 2
1334     {
1335         for hdr in $headers; do
1336             print_include $hdr
1337         done
1338         echo "#include <stdint.h>"
1339         for func in $funcs; do
1340             echo "long check_$func(void) { return (long) $func; }"
1341         done
1342         echo "int main(void) { int ret = 0;"
1343         # LTO could optimize out the test functions without this
1344         for func in $funcs; do
1345             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1346         done
1347         echo "return ret; }"
1348     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1349 }
1350
1351 check_class_headers_cpp(){
1352     log check_class_headers_cpp "$@"
1353     headers=$1
1354     classes=$2
1355     shift 2
1356     {
1357         for hdr in $headers; do
1358             echo "#include <$hdr>"
1359         done
1360         echo "int main(void) { "
1361         i=1
1362         for class in $classes; do
1363             echo "$class obj$i;"
1364             i=$(expr $i + 1)
1365         done
1366         echo "return 0; }"
1367     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1368 }
1369
1370 test_cpp_condition(){
1371     log test_cpp_condition "$@"
1372     header=$1
1373     condition=$2
1374     shift 2
1375     test_cpp "$@" <<EOF
1376 #include <$header>
1377 #if !($condition)
1378 #error "unsatisfied condition: $condition"
1379 #endif
1380 EOF
1381 }
1382
1383 check_cpp_condition(){
1384     log check_cpp_condition "$@"
1385     name=$1
1386     shift 1
1387     disable $name
1388     test_cpp_condition "$@" && enable $name
1389 }
1390
1391 test_cflags_cc(){
1392     log test_cflags_cc "$@"
1393     flags=$1
1394     header=$2
1395     condition=$3
1396     shift 3
1397     set -- $($cflags_filter "$flags")
1398     test_cc "$@" <<EOF
1399 #include <$header>
1400 #if !($condition)
1401 #error "unsatisfied condition: $condition"
1402 #endif
1403 EOF
1404 }
1405
1406 check_lib(){
1407     log check_lib "$@"
1408     name="$1"
1409     headers="$2"
1410     funcs="$3"
1411     shift 3
1412     disable $name
1413     check_func_headers "$headers" "$funcs" "$@" &&
1414         enable $name && eval ${name}_extralibs="\$@"
1415 }
1416
1417 check_lib_cpp(){
1418     log check_lib_cpp "$@"
1419     name="$1"
1420     headers="$2"
1421     classes="$3"
1422     shift 3
1423     disable $name
1424     check_class_headers_cpp "$headers" "$classes" "$@" &&
1425         enable $name && eval ${name}_extralibs="\$@"
1426 }
1427
1428 test_pkg_config(){
1429     log test_pkg_config "$@"
1430     name="$1"
1431     pkg_version="$2"
1432     pkg="${2%% *}"
1433     headers="$3"
1434     funcs="$4"
1435     shift 4
1436     disable $name
1437     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1438     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1439     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1440     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1441         enable $name &&
1442         set_sanitized "${name}_cflags"    $pkg_cflags &&
1443         set_sanitized "${name}_extralibs" $pkg_libs
1444 }
1445
1446 check_pkg_config(){
1447     log check_pkg_config "$@"
1448     name="$1"
1449     test_pkg_config "$@" &&
1450         eval add_cflags \$${name}_cflags
1451 }
1452
1453 test_exec(){
1454     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1455 }
1456
1457 check_exec_crash(){
1458     log check_exec_crash "$@"
1459     code=$(cat)
1460
1461     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1462     # are safe but may not be available everywhere.  Thus we use
1463     # raise(SIGTERM) instead.  The check is run in a subshell so we
1464     # can redirect the "Terminated" message from the shell.  SIGBUS
1465     # is not defined by standard C so it is used conditionally.
1466
1467     (test_exec "$@") >> $logfile 2>&1 <<EOF
1468 #include <signal.h>
1469 static void sighandler(int sig){
1470     raise(SIGTERM);
1471 }
1472 int foo(void){
1473     $code
1474 }
1475 int (*func_ptr)(void) = foo;
1476 int main(void){
1477     signal(SIGILL, sighandler);
1478     signal(SIGFPE, sighandler);
1479     signal(SIGSEGV, sighandler);
1480 #ifdef SIGBUS
1481     signal(SIGBUS, sighandler);
1482 #endif
1483     return func_ptr();
1484 }
1485 EOF
1486 }
1487
1488 check_type(){
1489     log check_type "$@"
1490     headers=$1
1491     type=$2
1492     shift 2
1493     disable_sanitized "$type"
1494     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1495 }
1496
1497 check_struct(){
1498     log check_struct "$@"
1499     headers=$1
1500     struct=$2
1501     member=$3
1502     shift 3
1503     disable_sanitized "${struct}_${member}"
1504     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1505         enable_sanitized "${struct}_${member}"
1506 }
1507
1508 check_builtin(){
1509     log check_builtin "$@"
1510     name=$1
1511     headers=$2
1512     builtin=$3
1513     shift 3
1514     disable "$name"
1515     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1516 }
1517
1518 check_compile_assert(){
1519     log check_compile_assert "$@"
1520     name=$1
1521     headers=$2
1522     condition=$3
1523     shift 3
1524     disable "$name"
1525     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1526 }
1527
1528 check_cc(){
1529     log check_cc "$@"
1530     name=$1
1531     shift
1532     disable "$name"
1533     test_code cc "$@" && enable "$name"
1534 }
1535
1536 require(){
1537     log require "$@"
1538     name_version="$1"
1539     name="${1%% *}"
1540     shift
1541     check_lib $name "$@" || die "ERROR: $name_version not found"
1542 }
1543
1544 require_cc(){
1545     log require_cc "$@"
1546     name="$1"
1547     check_cc "$@" || die "ERROR: $name failed"
1548 }
1549
1550 require_cpp(){
1551     name="$1"
1552     headers="$2"
1553     classes="$3"
1554     shift 3
1555     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1556 }
1557
1558 require_headers(){
1559     log require_headers "$@"
1560     headers="$1"
1561     check_headers "$@" || die "ERROR: $headers not found"
1562 }
1563
1564 require_cpp_condition(){
1565     log require_cpp_condition "$@"
1566     condition="$3"
1567     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1568 }
1569
1570 require_pkg_config(){
1571     log require_pkg_config "$@"
1572     pkg_version="$2"
1573     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1574 }
1575
1576 test_host_cc(){
1577     log test_host_cc "$@"
1578     cat > $TMPC
1579     log_file $TMPC
1580     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1581 }
1582
1583 test_host_cpp(){
1584     log test_host_cpp "$@"
1585     cat > $TMPC
1586     log_file $TMPC
1587     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1588 }
1589
1590 check_host_cppflags(){
1591     log check_host_cppflags "$@"
1592     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1593 #include <stdlib.h>
1594 EOF
1595 }
1596
1597 check_host_cflags(){
1598     log check_host_cflags "$@"
1599     set -- $($host_cflags_filter "$@")
1600     test_host_cc "$@" <<EOF && append host_cflags "$@"
1601 int x;
1602 EOF
1603 }
1604
1605 test_host_cpp_condition(){
1606     log test_host_cpp_condition "$@"
1607     header=$1
1608     condition=$2
1609     shift 2
1610     test_host_cpp "$@" <<EOF
1611 #include <$header>
1612 #if !($condition)
1613 #error "unsatisfied condition: $condition"
1614 #endif
1615 EOF
1616 }
1617
1618 check_host_cpp_condition(){
1619     log check_host_cpp_condition "$@"
1620     name=$1
1621     shift 1
1622     disable $name
1623     test_host_cpp_condition "$@" && enable $name
1624 }
1625
1626 cp_if_changed(){
1627     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1628     mkdir -p "$(dirname $2)"
1629     cp -f "$1" "$2"
1630 }
1631
1632 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1633 # system-dependent things.
1634
1635 AVCODEC_COMPONENTS="
1636     bsfs
1637     decoders
1638     encoders
1639     hwaccels
1640     parsers
1641 "
1642
1643 AVDEVICE_COMPONENTS="
1644     indevs
1645     outdevs
1646 "
1647
1648 AVFILTER_COMPONENTS="
1649     filters
1650 "
1651
1652 AVFORMAT_COMPONENTS="
1653     demuxers
1654     muxers
1655     protocols
1656 "
1657
1658 COMPONENT_LIST="
1659     $AVCODEC_COMPONENTS
1660     $AVDEVICE_COMPONENTS
1661     $AVFILTER_COMPONENTS
1662     $AVFORMAT_COMPONENTS
1663 "
1664
1665 EXAMPLE_LIST="
1666     avio_dir_cmd_example
1667     avio_reading_example
1668     decode_audio_example
1669     decode_video_example
1670     demuxing_decoding_example
1671     encode_audio_example
1672     encode_video_example
1673     extract_mvs_example
1674     filter_audio_example
1675     filtering_audio_example
1676     filtering_video_example
1677     http_multiclient_example
1678     hw_decode_example
1679     metadata_example
1680     muxing_example
1681     qsvdec_example
1682     remuxing_example
1683     resampling_audio_example
1684     scaling_video_example
1685     transcode_aac_example
1686     transcoding_example
1687     vaapi_encode_example
1688     vaapi_transcode_example
1689 "
1690
1691 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1692     alsa
1693     appkit
1694     avfoundation
1695     bzlib
1696     coreimage
1697     iconv
1698     libxcb
1699     libxcb_shm
1700     libxcb_shape
1701     libxcb_xfixes
1702     lzma
1703     schannel
1704     sdl2
1705     securetransport
1706     sndio
1707     xlib
1708     zlib
1709 "
1710
1711 EXTERNAL_LIBRARY_GPL_LIST="
1712     avisynth
1713     frei0r
1714     libcdio
1715     libdavs2
1716     librubberband
1717     libvidstab
1718     libx264
1719     libx265
1720     libxavs
1721     libxavs2
1722     libxvid
1723 "
1724
1725 EXTERNAL_LIBRARY_NONFREE_LIST="
1726     decklink
1727     libfdk_aac
1728     openssl
1729     libtls
1730 "
1731
1732 EXTERNAL_LIBRARY_VERSION3_LIST="
1733     gmp
1734     libaribb24
1735     liblensfun
1736     libopencore_amrnb
1737     libopencore_amrwb
1738     libvmaf
1739     libvo_amrwbenc
1740     mbedtls
1741     rkmpp
1742 "
1743
1744 EXTERNAL_LIBRARY_GPLV3_LIST="
1745     libsmbclient
1746 "
1747
1748 EXTERNAL_LIBRARY_LIST="
1749     $EXTERNAL_LIBRARY_GPL_LIST
1750     $EXTERNAL_LIBRARY_NONFREE_LIST
1751     $EXTERNAL_LIBRARY_VERSION3_LIST
1752     $EXTERNAL_LIBRARY_GPLV3_LIST
1753     chromaprint
1754     gcrypt
1755     gnutls
1756     jni
1757     ladspa
1758     libaom
1759     libass
1760     libbluray
1761     libbs2b
1762     libcaca
1763     libcelt
1764     libcodec2
1765     libdav1d
1766     libdc1394
1767     libdrm
1768     libflite
1769     libfontconfig
1770     libfreetype
1771     libfribidi
1772     libgme
1773     libgsm
1774     libiec61883
1775     libilbc
1776     libjack
1777     libklvanc
1778     libkvazaar
1779     libmodplug
1780     libmp3lame
1781     libmysofa
1782     libopencv
1783     libopenh264
1784     libopenjpeg
1785     libopenmpt
1786     libopus
1787     libpulse
1788     librav1e
1789     librsvg
1790     librtmp
1791     libshine
1792     libsmbclient
1793     libsnappy
1794     libsoxr
1795     libspeex
1796     libsrt
1797     libssh
1798     libtensorflow
1799     libtesseract
1800     libtheora
1801     libtwolame
1802     libv4l2
1803     libvorbis
1804     libvpx
1805     libwavpack
1806     libwebp
1807     libxml2
1808     libzimg
1809     libzmq
1810     libzvbi
1811     lv2
1812     mediacodec
1813     openal
1814     opengl
1815     pocketsphinx
1816     vapoursynth
1817 "
1818
1819 HWACCEL_AUTODETECT_LIBRARY_LIST="
1820     amf
1821     audiotoolbox
1822     crystalhd
1823     cuda
1824     cuda_llvm
1825     cuvid
1826     d3d11va
1827     dxva2
1828     ffnvcodec
1829     nvdec
1830     nvenc
1831     vaapi
1832     vdpau
1833     videotoolbox
1834     v4l2_m2m
1835     xvmc
1836 "
1837
1838 # catchall list of things that require external libs to link
1839 EXTRALIBS_LIST="
1840     cpu_init
1841     cws2fws
1842 "
1843
1844 HWACCEL_LIBRARY_NONFREE_LIST="
1845     cuda_nvcc
1846     cuda_sdk
1847     libnpp
1848 "
1849
1850 HWACCEL_LIBRARY_LIST="
1851     $HWACCEL_LIBRARY_NONFREE_LIST
1852     libmfx
1853     mmal
1854     omx
1855     opencl
1856 "
1857
1858 DOCUMENT_LIST="
1859     doc
1860     htmlpages
1861     manpages
1862     podpages
1863     txtpages
1864 "
1865
1866 FEATURE_LIST="
1867     ftrapv
1868     gray
1869     hardcoded_tables
1870     omx_rpi
1871     runtime_cpudetect
1872     safe_bitstream_reader
1873     shared
1874     small
1875     static
1876     swscale_alpha
1877 "
1878
1879 # this list should be kept in linking order
1880 LIBRARY_LIST="
1881     avdevice
1882     avfilter
1883     swscale
1884     postproc
1885     avformat
1886     avcodec
1887     swresample
1888     avresample
1889     avutil
1890 "
1891
1892 LICENSE_LIST="
1893     gpl
1894     nonfree
1895     version3
1896 "
1897
1898 PROGRAM_LIST="
1899     ffplay
1900     ffprobe
1901     ffmpeg
1902 "
1903
1904 SUBSYSTEM_LIST="
1905     dct
1906     dwt
1907     error_resilience
1908     faan
1909     fast_unaligned
1910     fft
1911     lsp
1912     lzo
1913     mdct
1914     pixelutils
1915     network
1916     rdft
1917 "
1918
1919 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1920 CONFIG_LIST="
1921     $DOCUMENT_LIST
1922     $EXAMPLE_LIST
1923     $EXTERNAL_LIBRARY_LIST
1924     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1925     $HWACCEL_LIBRARY_LIST
1926     $HWACCEL_AUTODETECT_LIBRARY_LIST
1927     $FEATURE_LIST
1928     $LICENSE_LIST
1929     $LIBRARY_LIST
1930     $PROGRAM_LIST
1931     $SUBSYSTEM_LIST
1932     autodetect
1933     fontconfig
1934     linux_perf
1935     memory_poisoning
1936     neon_clobber_test
1937     ossfuzz
1938     pic
1939     thumb
1940     valgrind_backtrace
1941     xmm_clobber_test
1942     $COMPONENT_LIST
1943 "
1944
1945 THREADS_LIST="
1946     pthreads
1947     os2threads
1948     w32threads
1949 "
1950
1951 ATOMICS_LIST="
1952     atomics_gcc
1953     atomics_suncc
1954     atomics_win32
1955 "
1956
1957 AUTODETECT_LIBS="
1958     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1959     $HWACCEL_AUTODETECT_LIBRARY_LIST
1960     $THREADS_LIST
1961 "
1962
1963 ARCH_LIST="
1964     aarch64
1965     alpha
1966     arm
1967     avr32
1968     avr32_ap
1969     avr32_uc
1970     bfin
1971     ia64
1972     m68k
1973     mips
1974     mips64
1975     parisc
1976     ppc
1977     ppc64
1978     s390
1979     sh4
1980     sparc
1981     sparc64
1982     tilegx
1983     tilepro
1984     tomi
1985     x86
1986     x86_32
1987     x86_64
1988 "
1989
1990 ARCH_EXT_LIST_ARM="
1991     armv5te
1992     armv6
1993     armv6t2
1994     armv8
1995     neon
1996     vfp
1997     vfpv3
1998     setend
1999 "
2000
2001 ARCH_EXT_LIST_MIPS="
2002     mipsfpu
2003     mips32r2
2004     mips32r5
2005     mips64r2
2006     mips32r6
2007     mips64r6
2008     mipsdsp
2009     mipsdspr2
2010     msa
2011     msa2
2012 "
2013
2014 ARCH_EXT_LIST_LOONGSON="
2015     loongson2
2016     loongson3
2017     mmi
2018 "
2019
2020 ARCH_EXT_LIST_X86_SIMD="
2021     aesni
2022     amd3dnow
2023     amd3dnowext
2024     avx
2025     avx2
2026     avx512
2027     fma3
2028     fma4
2029     mmx
2030     mmxext
2031     sse
2032     sse2
2033     sse3
2034     sse4
2035     sse42
2036     ssse3
2037     xop
2038 "
2039
2040 ARCH_EXT_LIST_PPC="
2041     altivec
2042     dcbzl
2043     ldbrx
2044     power8
2045     ppc4xx
2046     vsx
2047 "
2048
2049 ARCH_EXT_LIST_X86="
2050     $ARCH_EXT_LIST_X86_SIMD
2051     cpunop
2052     i686
2053 "
2054
2055 ARCH_EXT_LIST="
2056     $ARCH_EXT_LIST_ARM
2057     $ARCH_EXT_LIST_PPC
2058     $ARCH_EXT_LIST_X86
2059     $ARCH_EXT_LIST_MIPS
2060     $ARCH_EXT_LIST_LOONGSON
2061 "
2062
2063 ARCH_FEATURES="
2064     aligned_stack
2065     fast_64bit
2066     fast_clz
2067     fast_cmov
2068     local_aligned
2069     simd_align_16
2070     simd_align_32
2071     simd_align_64
2072 "
2073
2074 BUILTIN_LIST="
2075     atomic_cas_ptr
2076     machine_rw_barrier
2077     MemoryBarrier
2078     mm_empty
2079     rdtsc
2080     sem_timedwait
2081     sync_val_compare_and_swap
2082 "
2083 HAVE_LIST_CMDLINE="
2084     inline_asm
2085     symver
2086     x86asm
2087 "
2088
2089 HAVE_LIST_PUB="
2090     bigendian
2091     fast_unaligned
2092 "
2093
2094 HEADERS_LIST="
2095     arpa_inet_h
2096     asm_types_h
2097     cdio_paranoia_h
2098     cdio_paranoia_paranoia_h
2099     cuda_h
2100     dispatch_dispatch_h
2101     dev_bktr_ioctl_bt848_h
2102     dev_bktr_ioctl_meteor_h
2103     dev_ic_bt8xx_h
2104     dev_video_bktr_ioctl_bt848_h
2105     dev_video_meteor_ioctl_meteor_h
2106     direct_h
2107     dirent_h
2108     dxgidebug_h
2109     dxva_h
2110     ES2_gl_h
2111     gsm_h
2112     io_h
2113     linux_perf_event_h
2114     machine_ioctl_bt848_h
2115     machine_ioctl_meteor_h
2116     malloc_h
2117     opencv2_core_core_c_h
2118     OpenGL_gl3_h
2119     poll_h
2120     sys_param_h
2121     sys_resource_h
2122     sys_select_h
2123     sys_soundcard_h
2124     sys_time_h
2125     sys_un_h
2126     sys_videoio_h
2127     termios_h
2128     udplite_h
2129     unistd_h
2130     valgrind_valgrind_h
2131     windows_h
2132     winsock2_h
2133 "
2134
2135 INTRINSICS_LIST="
2136     intrinsics_neon
2137 "
2138
2139 COMPLEX_FUNCS="
2140     cabs
2141     cexp
2142 "
2143
2144 MATH_FUNCS="
2145     atanf
2146     atan2f
2147     cbrt
2148     cbrtf
2149     copysign
2150     cosf
2151     erf
2152     exp2
2153     exp2f
2154     expf
2155     hypot
2156     isfinite
2157     isinf
2158     isnan
2159     ldexpf
2160     llrint
2161     llrintf
2162     log2
2163     log2f
2164     log10f
2165     lrint
2166     lrintf
2167     powf
2168     rint
2169     round
2170     roundf
2171     sinf
2172     trunc
2173     truncf
2174 "
2175
2176 SYSTEM_FEATURES="
2177     dos_paths
2178     libc_msvcrt
2179     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2180     section_data_rel_ro
2181     threads
2182     uwp
2183     winrt
2184 "
2185
2186 SYSTEM_FUNCS="
2187     access
2188     aligned_malloc
2189     arc4random
2190     clock_gettime
2191     closesocket
2192     CommandLineToArgvW
2193     fcntl
2194     getaddrinfo
2195     gethrtime
2196     getopt
2197     GetModuleHandle
2198     GetProcessAffinityMask
2199     GetProcessMemoryInfo
2200     GetProcessTimes
2201     getrusage
2202     GetSystemTimeAsFileTime
2203     gettimeofday
2204     glob
2205     glXGetProcAddress
2206     gmtime_r
2207     inet_aton
2208     isatty
2209     kbhit
2210     localtime_r
2211     lstat
2212     lzo1x_999_compress
2213     mach_absolute_time
2214     MapViewOfFile
2215     memalign
2216     mkstemp
2217     mmap
2218     mprotect
2219     nanosleep
2220     PeekNamedPipe
2221     posix_memalign
2222     pthread_cancel
2223     sched_getaffinity
2224     SecItemImport
2225     SetConsoleTextAttribute
2226     SetConsoleCtrlHandler
2227     SetDllDirectory
2228     setmode
2229     setrlimit
2230     Sleep
2231     strerror_r
2232     sysconf
2233     sysctl
2234     usleep
2235     UTGetOSTypeFromString
2236     VirtualAlloc
2237     wglGetProcAddress
2238 "
2239
2240 SYSTEM_LIBRARIES="
2241     bcrypt
2242     vaapi_drm
2243     vaapi_x11
2244     vdpau_x11
2245 "
2246
2247 TOOLCHAIN_FEATURES="
2248     as_arch_directive
2249     as_dn_directive
2250     as_fpu_directive
2251     as_func
2252     as_object_arch
2253     asm_mod_q
2254     blocks_extension
2255     ebp_available
2256     ebx_available
2257     gnu_as
2258     gnu_windres
2259     ibm_asm
2260     inline_asm_direct_symbol_refs
2261     inline_asm_labels
2262     inline_asm_nonlocal_labels
2263     pragma_deprecated
2264     rsync_contimeout
2265     symver_asm_label
2266     symver_gnu_asm
2267     vfp_args
2268     xform_asm
2269     xmm_clobbers
2270 "
2271
2272 TYPES_LIST="
2273     kCMVideoCodecType_HEVC
2274     kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
2275     kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
2276     kCVImageBufferTransferFunction_ITU_R_2100_HLG
2277     kCVImageBufferTransferFunction_Linear
2278     socklen_t
2279     struct_addrinfo
2280     struct_group_source_req
2281     struct_ip_mreq_source
2282     struct_ipv6_mreq
2283     struct_msghdr_msg_flags
2284     struct_pollfd
2285     struct_rusage_ru_maxrss
2286     struct_sctp_event_subscribe
2287     struct_sockaddr_in6
2288     struct_sockaddr_sa_len
2289     struct_sockaddr_storage
2290     struct_stat_st_mtim_tv_nsec
2291     struct_v4l2_frmivalenum_discrete
2292 "
2293
2294 HAVE_LIST="
2295     $ARCH_EXT_LIST
2296     $(add_suffix _external $ARCH_EXT_LIST)
2297     $(add_suffix _inline   $ARCH_EXT_LIST)
2298     $ARCH_FEATURES
2299     $BUILTIN_LIST
2300     $COMPLEX_FUNCS
2301     $HAVE_LIST_CMDLINE
2302     $HAVE_LIST_PUB
2303     $HEADERS_LIST
2304     $INTRINSICS_LIST
2305     $MATH_FUNCS
2306     $SYSTEM_FEATURES
2307     $SYSTEM_FUNCS
2308     $SYSTEM_LIBRARIES
2309     $THREADS_LIST
2310     $TOOLCHAIN_FEATURES
2311     $TYPES_LIST
2312     makeinfo
2313     makeinfo_html
2314     opencl_d3d11
2315     opencl_drm_arm
2316     opencl_drm_beignet
2317     opencl_dxva2
2318     opencl_vaapi_beignet
2319     opencl_vaapi_intel_media
2320     perl
2321     pod2man
2322     texi2html
2323 "
2324
2325 # options emitted with CONFIG_ prefix but not available on the command line
2326 CONFIG_EXTRA="
2327     aandcttables
2328     ac3dsp
2329     adts_header
2330     audio_frame_queue
2331     audiodsp
2332     blockdsp
2333     bswapdsp
2334     cabac
2335     cbs
2336     cbs_av1
2337     cbs_h264
2338     cbs_h265
2339     cbs_jpeg
2340     cbs_mpeg2
2341     cbs_vp9
2342     dirac_parse
2343     dnn
2344     dvprofile
2345     exif
2346     faandct
2347     faanidct
2348     fdctdsp
2349     flacdsp
2350     fmtconvert
2351     frame_thread_encoder
2352     g722dsp
2353     golomb
2354     gplv3
2355     h263dsp
2356     h264chroma
2357     h264dsp
2358     h264parse
2359     h264pred
2360     h264qpel
2361     hevcparse
2362     hpeldsp
2363     huffman
2364     huffyuvdsp
2365     huffyuvencdsp
2366     idctdsp
2367     iirfilter
2368     mdct15
2369     intrax8
2370     iso_media
2371     ividsp
2372     jpegtables
2373     lgplv3
2374     libx262
2375     llauddsp
2376     llviddsp
2377     llvidencdsp
2378     lpc
2379     lzf
2380     me_cmp
2381     mpeg_er
2382     mpegaudio
2383     mpegaudiodsp
2384     mpegaudioheader
2385     mpegvideo
2386     mpegvideoenc
2387     mss34dsp
2388     pixblockdsp
2389     qpeldsp
2390     qsv
2391     qsvdec
2392     qsvenc
2393     qsvvpp
2394     rangecoder
2395     riffdec
2396     riffenc
2397     rtpdec
2398     rtpenc_chain
2399     rv34dsp
2400     scene_sad
2401     sinewin
2402     snappy
2403     srtp
2404     startcode
2405     texturedsp
2406     texturedspenc
2407     tpeldsp
2408     vaapi_1
2409     vaapi_encode
2410     vc1dsp
2411     videodsp
2412     vp3dsp
2413     vp56dsp
2414     vp8dsp
2415     wma_freqs
2416     wmv2dsp
2417 "
2418
2419 CMDLINE_SELECT="
2420     $ARCH_EXT_LIST
2421     $CONFIG_LIST
2422     $HAVE_LIST_CMDLINE
2423     $THREADS_LIST
2424     asm
2425     cross_compile
2426     debug
2427     extra_warnings
2428     logging
2429     lto
2430     optimizations
2431     rpath
2432     stripping
2433 "
2434
2435 PATHS_LIST="
2436     bindir
2437     datadir
2438     docdir
2439     incdir
2440     libdir
2441     mandir
2442     pkgconfigdir
2443     prefix
2444     shlibdir
2445     install_name_dir
2446 "
2447
2448 CMDLINE_SET="
2449     $PATHS_LIST
2450     ar
2451     arch
2452     as
2453     assert_level
2454     build_suffix
2455     cc
2456     objcc
2457     cpu
2458     cross_prefix
2459     custom_allocator
2460     cxx
2461     dep_cc
2462     doxygen
2463     env
2464     extra_version
2465     gas
2466     host_cc
2467     host_cflags
2468     host_extralibs
2469     host_ld
2470     host_ldflags
2471     host_os
2472     ignore_tests
2473     install
2474     ld
2475     ln_s
2476     logfile
2477     malloc_prefix
2478     nm
2479     optflags
2480     nvcc
2481     nvccflags
2482     pkg_config
2483     pkg_config_flags
2484     progs_suffix
2485     random_seed
2486     ranlib
2487     samples
2488     strip
2489     sws_max_filter_size
2490     sysinclude
2491     sysroot
2492     target_exec
2493     target_os
2494     target_path
2495     target_samples
2496     tempprefix
2497     toolchain
2498     valgrind
2499     windres
2500     x86asmexe
2501 "
2502
2503 CMDLINE_APPEND="
2504     extra_cflags
2505     extra_cxxflags
2506     extra_objcflags
2507     host_cppflags
2508 "
2509
2510 # code dependency declarations
2511
2512 # architecture extensions
2513
2514 armv5te_deps="arm"
2515 armv6_deps="arm"
2516 armv6t2_deps="arm"
2517 armv8_deps="aarch64"
2518 neon_deps_any="aarch64 arm"
2519 intrinsics_neon_deps="neon"
2520 vfp_deps_any="aarch64 arm"
2521 vfpv3_deps="vfp"
2522 setend_deps="arm"
2523
2524 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2525
2526 altivec_deps="ppc"
2527 dcbzl_deps="ppc"
2528 ldbrx_deps="ppc"
2529 ppc4xx_deps="ppc"
2530 vsx_deps="altivec"
2531 power8_deps="vsx"
2532
2533 loongson2_deps="mips"
2534 loongson3_deps="mips"
2535 mips32r2_deps="mips"
2536 mips32r5_deps="mips"
2537 mips32r6_deps="mips"
2538 mips64r2_deps="mips"
2539 mips64r6_deps="mips"
2540 mipsfpu_deps="mips"
2541 mipsdsp_deps="mips"
2542 mipsdspr2_deps="mips"
2543 mmi_deps="mips"
2544 msa_deps="mipsfpu"
2545 msa2_deps="msa"
2546
2547 cpunop_deps="i686"
2548 x86_64_select="i686"
2549 x86_64_suggest="fast_cmov"
2550
2551 amd3dnow_deps="mmx"
2552 amd3dnowext_deps="amd3dnow"
2553 i686_deps="x86"
2554 mmx_deps="x86"
2555 mmxext_deps="mmx"
2556 sse_deps="mmxext"
2557 sse2_deps="sse"
2558 sse3_deps="sse2"
2559 ssse3_deps="sse3"
2560 sse4_deps="ssse3"
2561 sse42_deps="sse4"
2562 aesni_deps="sse42"
2563 avx_deps="sse42"
2564 xop_deps="avx"
2565 fma3_deps="avx"
2566 fma4_deps="avx"
2567 avx2_deps="avx"
2568 avx512_deps="avx2"
2569
2570 mmx_external_deps="x86asm"
2571 mmx_inline_deps="inline_asm x86"
2572 mmx_suggest="mmx_external mmx_inline"
2573
2574 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2575     eval dep=\$${ext}_deps
2576     eval ${ext}_external_deps='"${dep}_external"'
2577     eval ${ext}_inline_deps='"${dep}_inline"'
2578     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2579 done
2580
2581 aligned_stack_if_any="aarch64 ppc x86"
2582 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2583 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2584 fast_unaligned_if_any="aarch64 ppc x86"
2585 simd_align_16_if_any="altivec neon sse"
2586 simd_align_32_if_any="avx"
2587 simd_align_64_if_any="avx512"
2588
2589 # system capabilities
2590 linux_perf_deps="linux_perf_event_h"
2591 symver_if_any="symver_asm_label symver_gnu_asm"
2592 valgrind_backtrace_conflict="optimizations"
2593 valgrind_backtrace_deps="valgrind_valgrind_h"
2594
2595 # threading support
2596 atomics_gcc_if="sync_val_compare_and_swap"
2597 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2598 atomics_win32_if="MemoryBarrier"
2599 atomics_native_if_any="$ATOMICS_LIST"
2600 w32threads_deps="atomics_native"
2601 threads_if_any="$THREADS_LIST"
2602
2603 # subsystems
2604 cbs_av1_select="cbs"
2605 cbs_h264_select="cbs"
2606 cbs_h265_select="cbs"
2607 cbs_jpeg_select="cbs"
2608 cbs_mpeg2_select="cbs"
2609 cbs_vp9_select="cbs"
2610 dct_select="rdft"
2611 dirac_parse_select="golomb"
2612 dnn_suggest="libtensorflow"
2613 error_resilience_select="me_cmp"
2614 faandct_deps="faan"
2615 faandct_select="fdctdsp"
2616 faanidct_deps="faan"
2617 faanidct_select="idctdsp"
2618 h264dsp_select="startcode"
2619 hevcparse_select="golomb"
2620 frame_thread_encoder_deps="encoders threads"
2621 intrax8_select="blockdsp idctdsp"
2622 mdct_select="fft"
2623 mdct15_select="fft"
2624 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2625 mpeg_er_select="error_resilience"
2626 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2627 mpegaudiodsp_select="dct"
2628 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2629 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2630 vc1dsp_select="h264chroma qpeldsp startcode"
2631 rdft_select="fft"
2632
2633 # decoders / encoders
2634 aac_decoder_select="adts_header mdct15 mdct sinewin"
2635 aac_fixed_decoder_select="adts_header mdct sinewin"
2636 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2637 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2638 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2639 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2640 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2641 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2642 acelp_kelvin_decoder_select="audiodsp"
2643 adpcm_g722_decoder_select="g722dsp"
2644 adpcm_g722_encoder_select="g722dsp"
2645 aic_decoder_select="golomb idctdsp"
2646 alac_encoder_select="lpc"
2647 als_decoder_select="bswapdsp"
2648 amrnb_decoder_select="lsp"
2649 amrwb_decoder_select="lsp"
2650 amv_decoder_select="sp5x_decoder exif"
2651 amv_encoder_select="jpegtables mpegvideoenc"
2652 ape_decoder_select="bswapdsp llauddsp"
2653 apng_decoder_deps="zlib"
2654 apng_encoder_deps="zlib"
2655 apng_encoder_select="llvidencdsp"
2656 aptx_decoder_select="audio_frame_queue"
2657 aptx_encoder_select="audio_frame_queue"
2658 aptx_hd_decoder_select="audio_frame_queue"
2659 aptx_hd_encoder_select="audio_frame_queue"
2660 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2661 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2662 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2663 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2664 atrac1_decoder_select="mdct sinewin"
2665 atrac3_decoder_select="mdct"
2666 atrac3al_decoder_select="mdct"
2667 atrac3p_decoder_select="mdct sinewin"
2668 atrac3pal_decoder_select="mdct sinewin"
2669 atrac9_decoder_select="mdct"
2670 avrn_decoder_select="exif jpegtables"
2671 bink_decoder_select="blockdsp hpeldsp"
2672 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2673 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2674 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2675 clearvideo_decoder_select="idctdsp"
2676 cllc_decoder_select="bswapdsp"
2677 comfortnoise_encoder_select="lpc"
2678 cook_decoder_select="audiodsp mdct sinewin"
2679 cscd_decoder_select="lzo"
2680 cscd_decoder_suggest="zlib"
2681 dca_decoder_select="mdct"
2682 dca_encoder_select="mdct"
2683 dds_decoder_select="texturedsp"
2684 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2685 dnxhd_decoder_select="blockdsp idctdsp"
2686 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2687 dolby_e_decoder_select="mdct"
2688 dvvideo_decoder_select="dvprofile idctdsp"
2689 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2690 dxa_decoder_deps="zlib"
2691 dxv_decoder_select="lzf texturedsp"
2692 eac3_decoder_select="ac3_decoder"
2693 eac3_encoder_select="ac3_encoder"
2694 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2695 eatgq_decoder_select="aandcttables"
2696 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2697 exr_decoder_deps="zlib"
2698 ffv1_decoder_select="rangecoder"
2699 ffv1_encoder_select="rangecoder"
2700 ffvhuff_decoder_select="huffyuv_decoder"
2701 ffvhuff_encoder_select="huffyuv_encoder"
2702 fic_decoder_select="golomb"
2703 flac_decoder_select="flacdsp"
2704 flac_encoder_select="bswapdsp flacdsp lpc"
2705 flashsv2_decoder_deps="zlib"
2706 flashsv2_encoder_deps="zlib"
2707 flashsv_decoder_deps="zlib"
2708 flashsv_encoder_deps="zlib"
2709 flv_decoder_select="h263_decoder"
2710 flv_encoder_select="h263_encoder"
2711 fourxm_decoder_select="blockdsp bswapdsp"
2712 fraps_decoder_select="bswapdsp huffman"
2713 g2m_decoder_deps="zlib"
2714 g2m_decoder_select="blockdsp idctdsp jpegtables"
2715 g729_decoder_select="audiodsp"
2716 h261_decoder_select="mpegvideo"
2717 h261_encoder_select="mpegvideoenc"
2718 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2719 h263_encoder_select="h263dsp mpegvideoenc"
2720 h263i_decoder_select="h263_decoder"
2721 h263p_decoder_select="h263_decoder"
2722 h263p_encoder_select="h263_encoder"
2723 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2724 h264_decoder_suggest="error_resilience"
2725 hap_decoder_select="snappy texturedsp"
2726 hap_encoder_deps="libsnappy"
2727 hap_encoder_select="texturedspenc"
2728 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2729 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2730 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2731 hymt_decoder_select="huffyuv_decoder"
2732 iac_decoder_select="imc_decoder"
2733 imc_decoder_select="bswapdsp fft mdct sinewin"
2734 imm4_decoder_select="bswapdsp"
2735 imm5_decoder_select="h264_decoder hevc_decoder"
2736 indeo3_decoder_select="hpeldsp"
2737 indeo4_decoder_select="ividsp"
2738 indeo5_decoder_select="ividsp"
2739 interplay_video_decoder_select="hpeldsp"
2740 jpegls_decoder_select="mjpeg_decoder"
2741 jv_decoder_select="blockdsp"
2742 lagarith_decoder_select="llviddsp"
2743 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2744 lscr_decoder_deps="zlib"
2745 magicyuv_decoder_select="llviddsp"
2746 magicyuv_encoder_select="llvidencdsp"
2747 mdec_decoder_select="blockdsp bswapdsp idctdsp mpegvideo"
2748 metasound_decoder_select="lsp mdct sinewin"
2749 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2750 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2751 mjpeg_encoder_select="jpegtables mpegvideoenc"
2752 mjpegb_decoder_select="mjpeg_decoder"
2753 mlp_decoder_select="mlp_parser"
2754 mlp_encoder_select="lpc audio_frame_queue"
2755 motionpixels_decoder_select="bswapdsp"
2756 mp1_decoder_select="mpegaudio"
2757 mp1float_decoder_select="mpegaudio"
2758 mp2_decoder_select="mpegaudio"
2759 mp2float_decoder_select="mpegaudio"
2760 mp3_decoder_select="mpegaudio"
2761 mp3adu_decoder_select="mpegaudio"
2762 mp3adufloat_decoder_select="mpegaudio"
2763 mp3float_decoder_select="mpegaudio"
2764 mp3on4_decoder_select="mpegaudio"
2765 mp3on4float_decoder_select="mpegaudio"
2766 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2767 mpc8_decoder_select="mpegaudiodsp"
2768 mpegvideo_decoder_select="mpegvideo"
2769 mpeg1video_decoder_select="mpegvideo"
2770 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2771 mpeg2video_decoder_select="mpegvideo"
2772 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2773 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2774 mpeg4_encoder_select="h263_encoder"
2775 msa1_decoder_select="mss34dsp"
2776 mscc_decoder_deps="zlib"
2777 msmpeg4v1_decoder_select="h263_decoder"
2778 msmpeg4v2_decoder_select="h263_decoder"
2779 msmpeg4v2_encoder_select="h263_encoder"
2780 msmpeg4v3_decoder_select="h263_decoder"
2781 msmpeg4v3_encoder_select="h263_encoder"
2782 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2783 mts2_decoder_select="mss34dsp"
2784 mvha_decoder_deps="zlib"
2785 mwsc_decoder_deps="zlib"
2786 mxpeg_decoder_select="mjpeg_decoder"
2787 nellymoser_decoder_select="mdct sinewin"
2788 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2789 nuv_decoder_select="idctdsp lzo"
2790 on2avc_decoder_select="mdct"
2791 opus_decoder_deps="swresample"
2792 opus_decoder_select="mdct15"
2793 opus_encoder_select="audio_frame_queue mdct15"
2794 png_decoder_deps="zlib"
2795 png_encoder_deps="zlib"
2796 png_encoder_select="llvidencdsp"
2797 prores_decoder_select="blockdsp idctdsp"
2798 prores_encoder_select="fdctdsp"
2799 qcelp_decoder_select="lsp"
2800 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2801 ra_144_decoder_select="audiodsp"
2802 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2803 ralf_decoder_select="golomb"
2804 rasc_decoder_deps="zlib"
2805 rawvideo_decoder_select="bswapdsp"
2806 rscc_decoder_deps="zlib"
2807 rtjpeg_decoder_select="me_cmp"
2808 rv10_decoder_select="h263_decoder"
2809 rv10_encoder_select="h263_encoder"
2810 rv20_decoder_select="h263_decoder"
2811 rv20_encoder_select="h263_encoder"
2812 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2813 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2814 screenpresso_decoder_deps="zlib"
2815 shorten_decoder_select="bswapdsp"
2816 sipr_decoder_select="lsp"
2817 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2818 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2819 sonic_decoder_select="golomb rangecoder"
2820 sonic_encoder_select="golomb rangecoder"
2821 sonic_ls_encoder_select="golomb rangecoder"
2822 sp5x_decoder_select="mjpeg_decoder"
2823 speedhq_decoder_select="mpegvideo"
2824 srgc_decoder_deps="zlib"
2825 svq1_decoder_select="hpeldsp"
2826 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2827 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2828 svq3_decoder_suggest="zlib"
2829 tak_decoder_select="audiodsp"
2830 tdsc_decoder_deps="zlib"
2831 tdsc_decoder_select="mjpeg_decoder"
2832 theora_decoder_select="vp3_decoder"
2833 thp_decoder_select="mjpeg_decoder"
2834 tiff_decoder_select="mjpeg_decoder"
2835 tiff_decoder_suggest="zlib lzma"
2836 tiff_encoder_suggest="zlib"
2837 truehd_decoder_select="mlp_parser"
2838 truehd_encoder_select="lpc audio_frame_queue"
2839 truemotion2_decoder_select="bswapdsp"
2840 truespeech_decoder_select="bswapdsp"
2841 tscc_decoder_deps="zlib"
2842 twinvq_decoder_select="mdct lsp sinewin"
2843 txd_decoder_select="texturedsp"
2844 utvideo_decoder_select="bswapdsp llviddsp"
2845 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2846 vble_decoder_select="llviddsp"
2847 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2848 vc1image_decoder_select="vc1_decoder"
2849 vorbis_decoder_select="mdct"
2850 vorbis_encoder_select="audio_frame_queue mdct"
2851 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2852 vp4_decoder_select="vp3_decoder"
2853 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2854 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2855 vp6a_decoder_select="vp6_decoder"
2856 vp6f_decoder_select="vp6_decoder"
2857 vp7_decoder_select="h264pred videodsp vp8dsp"
2858 vp8_decoder_select="h264pred videodsp vp8dsp"
2859 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2860 wcmv_decoder_deps="zlib"
2861 webp_decoder_select="vp8_decoder exif"
2862 wmalossless_decoder_select="llauddsp"
2863 wmapro_decoder_select="mdct sinewin wma_freqs"
2864 wmav1_decoder_select="mdct sinewin wma_freqs"
2865 wmav1_encoder_select="mdct sinewin wma_freqs"
2866 wmav2_decoder_select="mdct sinewin wma_freqs"
2867 wmav2_encoder_select="mdct sinewin wma_freqs"
2868 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2869 wmv1_decoder_select="h263_decoder"
2870 wmv1_encoder_select="h263_encoder"
2871 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2872 wmv2_encoder_select="h263_encoder wmv2dsp"
2873 wmv3_decoder_select="vc1_decoder"
2874 wmv3image_decoder_select="wmv3_decoder"
2875 xma1_decoder_select="wmapro_decoder"
2876 xma2_decoder_select="wmapro_decoder"
2877 ylc_decoder_select="bswapdsp"
2878 zerocodec_decoder_deps="zlib"
2879 zlib_decoder_deps="zlib"
2880 zlib_encoder_deps="zlib"
2881 zmbv_decoder_deps="zlib"
2882 zmbv_encoder_deps="zlib"
2883
2884 # hardware accelerators
2885 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2886 cuda_deps="ffnvcodec"
2887 cuvid_deps="ffnvcodec"
2888 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2889 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2890 ffnvcodec_deps_any="libdl LoadLibrary"
2891 nvdec_deps="ffnvcodec"
2892 vaapi_x11_deps="xlib"
2893 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2894 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2895 xvmc_deps="X11_extensions_XvMClib_h"
2896
2897 h263_vaapi_hwaccel_deps="vaapi"
2898 h263_vaapi_hwaccel_select="h263_decoder"
2899 h263_videotoolbox_hwaccel_deps="videotoolbox"
2900 h263_videotoolbox_hwaccel_select="h263_decoder"
2901 h264_d3d11va_hwaccel_deps="d3d11va"
2902 h264_d3d11va_hwaccel_select="h264_decoder"
2903 h264_d3d11va2_hwaccel_deps="d3d11va"
2904 h264_d3d11va2_hwaccel_select="h264_decoder"
2905 h264_dxva2_hwaccel_deps="dxva2"
2906 h264_dxva2_hwaccel_select="h264_decoder"
2907 h264_nvdec_hwaccel_deps="nvdec"
2908 h264_nvdec_hwaccel_select="h264_decoder"
2909 h264_vaapi_hwaccel_deps="vaapi"
2910 h264_vaapi_hwaccel_select="h264_decoder"
2911 h264_vdpau_hwaccel_deps="vdpau"
2912 h264_vdpau_hwaccel_select="h264_decoder"
2913 h264_videotoolbox_hwaccel_deps="videotoolbox"
2914 h264_videotoolbox_hwaccel_select="h264_decoder"
2915 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2916 hevc_d3d11va_hwaccel_select="hevc_decoder"
2917 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2918 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2919 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2920 hevc_dxva2_hwaccel_select="hevc_decoder"
2921 hevc_nvdec_hwaccel_deps="nvdec"
2922 hevc_nvdec_hwaccel_select="hevc_decoder"
2923 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2924 hevc_vaapi_hwaccel_select="hevc_decoder"
2925 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2926 hevc_vdpau_hwaccel_select="hevc_decoder"
2927 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2928 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2929 mjpeg_nvdec_hwaccel_deps="nvdec"
2930 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2931 mjpeg_vaapi_hwaccel_deps="vaapi"
2932 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2933 mpeg_xvmc_hwaccel_deps="xvmc"
2934 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2935 mpeg1_nvdec_hwaccel_deps="nvdec"
2936 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2937 mpeg1_vdpau_hwaccel_deps="vdpau"
2938 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2939 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2940 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2941 mpeg1_xvmc_hwaccel_deps="xvmc"
2942 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2943 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2944 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2945 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2946 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2947 mpeg2_dxva2_hwaccel_deps="dxva2"
2948 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2949 mpeg2_nvdec_hwaccel_deps="nvdec"
2950 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2951 mpeg2_vaapi_hwaccel_deps="vaapi"
2952 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2953 mpeg2_vdpau_hwaccel_deps="vdpau"
2954 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2955 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2956 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2957 mpeg2_xvmc_hwaccel_deps="xvmc"
2958 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2959 mpeg4_nvdec_hwaccel_deps="nvdec"
2960 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2961 mpeg4_vaapi_hwaccel_deps="vaapi"
2962 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2963 mpeg4_vdpau_hwaccel_deps="vdpau"
2964 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2965 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2966 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2967 vc1_d3d11va_hwaccel_deps="d3d11va"
2968 vc1_d3d11va_hwaccel_select="vc1_decoder"
2969 vc1_d3d11va2_hwaccel_deps="d3d11va"
2970 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2971 vc1_dxva2_hwaccel_deps="dxva2"
2972 vc1_dxva2_hwaccel_select="vc1_decoder"
2973 vc1_nvdec_hwaccel_deps="nvdec"
2974 vc1_nvdec_hwaccel_select="vc1_decoder"
2975 vc1_vaapi_hwaccel_deps="vaapi"
2976 vc1_vaapi_hwaccel_select="vc1_decoder"
2977 vc1_vdpau_hwaccel_deps="vdpau"
2978 vc1_vdpau_hwaccel_select="vc1_decoder"
2979 vp8_nvdec_hwaccel_deps="nvdec"
2980 vp8_nvdec_hwaccel_select="vp8_decoder"
2981 vp8_vaapi_hwaccel_deps="vaapi"
2982 vp8_vaapi_hwaccel_select="vp8_decoder"
2983 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2984 vp9_d3d11va_hwaccel_select="vp9_decoder"
2985 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2986 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2987 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2988 vp9_dxva2_hwaccel_select="vp9_decoder"
2989 vp9_nvdec_hwaccel_deps="nvdec"
2990 vp9_nvdec_hwaccel_select="vp9_decoder"
2991 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2992 vp9_vaapi_hwaccel_select="vp9_decoder"
2993 vp9_vdpau_hwaccel_deps="vdpau VdpPictureInfoVP9"
2994 vp9_vdpau_hwaccel_select="vp9_decoder"
2995 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2996 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2997 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2998 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2999 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
3000 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
3001
3002 # hardware-accelerated codecs
3003 omx_deps="libdl pthreads"
3004 omx_rpi_select="omx"
3005 qsv_deps="libmfx"
3006 qsvdec_select="qsv"
3007 qsvenc_select="qsv"
3008 qsvvpp_select="qsv"
3009 vaapi_encode_deps="vaapi"
3010 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
3011
3012 hwupload_cuda_filter_deps="ffnvcodec"
3013 scale_npp_filter_deps="ffnvcodec libnpp"
3014 scale_cuda_filter_deps="ffnvcodec"
3015 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3016 thumbnail_cuda_filter_deps="ffnvcodec"
3017 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3018 transpose_npp_filter_deps="ffnvcodec libnpp"
3019
3020 amf_deps_any="libdl LoadLibrary"
3021 nvenc_deps="ffnvcodec"
3022 nvenc_deps_any="libdl LoadLibrary"
3023 nvenc_encoder_deps="nvenc"
3024
3025 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3026 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3027 h264_amf_encoder_deps="amf"
3028 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3029 h264_cuvid_decoder_deps="cuvid"
3030 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3031 h264_mediacodec_decoder_deps="mediacodec"
3032 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3033 h264_mmal_decoder_deps="mmal"
3034 h264_nvenc_encoder_deps="nvenc"
3035 h264_omx_encoder_deps="omx"
3036 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3037 h264_qsv_encoder_select="qsvenc"
3038 h264_rkmpp_decoder_deps="rkmpp"
3039 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3040 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3041 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3042 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3043 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3044 hevc_amf_encoder_deps="amf"
3045 hevc_cuvid_decoder_deps="cuvid"
3046 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3047 hevc_mediacodec_decoder_deps="mediacodec"
3048 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3049 hevc_nvenc_encoder_deps="nvenc"
3050 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3051 hevc_qsv_encoder_select="hevcparse qsvenc"
3052 hevc_rkmpp_decoder_deps="rkmpp"
3053 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3054 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3055 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3056 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3057 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3058 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3059 mjpeg_cuvid_decoder_deps="cuvid"
3060 mjpeg_qsv_decoder_select="qsvdec"
3061 mjpeg_qsv_encoder_deps="libmfx"
3062 mjpeg_qsv_encoder_select="qsvenc"
3063 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3064 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3065 mpeg1_cuvid_decoder_deps="cuvid"
3066 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3067 mpeg2_crystalhd_decoder_select="crystalhd"
3068 mpeg2_cuvid_decoder_deps="cuvid"
3069 mpeg2_mmal_decoder_deps="mmal"
3070 mpeg2_mediacodec_decoder_deps="mediacodec"
3071 mpeg2_qsv_decoder_select="qsvdec"
3072 mpeg2_qsv_encoder_select="qsvenc"
3073 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3074 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3075 mpeg4_crystalhd_decoder_select="crystalhd"
3076 mpeg4_cuvid_decoder_deps="cuvid"
3077 mpeg4_mediacodec_decoder_deps="mediacodec"
3078 mpeg4_mmal_decoder_deps="mmal"
3079 mpeg4_omx_encoder_deps="omx"
3080 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3081 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3082 msmpeg4_crystalhd_decoder_select="crystalhd"
3083 nvenc_h264_encoder_select="h264_nvenc_encoder"
3084 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3085 vc1_crystalhd_decoder_select="crystalhd"
3086 vc1_cuvid_decoder_deps="cuvid"
3087 vc1_mmal_decoder_deps="mmal"
3088 vc1_qsv_decoder_select="qsvdec"
3089 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3090 vp8_cuvid_decoder_deps="cuvid"
3091 vp8_mediacodec_decoder_deps="mediacodec"
3092 vp8_qsv_decoder_select="qsvdec"
3093 vp8_rkmpp_decoder_deps="rkmpp"
3094 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3095 vp8_vaapi_encoder_select="vaapi_encode"
3096 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3097 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3098 vp9_cuvid_decoder_deps="cuvid"
3099 vp9_mediacodec_decoder_deps="mediacodec"
3100 vp9_qsv_decoder_select="qsvdec"
3101 vp9_rkmpp_decoder_deps="rkmpp"
3102 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3103 vp9_vaapi_encoder_select="vaapi_encode"
3104 vp9_qsv_encoder_deps="libmfx MFX_CODEC_VP9"
3105 vp9_qsv_encoder_select="qsvenc"
3106 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3107 wmv3_crystalhd_decoder_select="crystalhd"
3108
3109 # parsers
3110 aac_parser_select="adts_header"
3111 av1_parser_select="cbs_av1"
3112 h264_parser_select="golomb h264dsp h264parse"
3113 hevc_parser_select="hevcparse"
3114 mpegaudio_parser_select="mpegaudioheader"
3115 mpegvideo_parser_select="mpegvideo"
3116 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3117 vc1_parser_select="vc1dsp"
3118
3119 # bitstream_filters
3120 aac_adtstoasc_bsf_select="adts_header"
3121 av1_frame_merge_bsf_select="cbs_av1"
3122 av1_frame_split_bsf_select="cbs_av1"
3123 av1_metadata_bsf_select="cbs_av1"
3124 eac3_core_bsf_select="ac3_parser"
3125 filter_units_bsf_select="cbs"
3126 h264_metadata_bsf_deps="const_nan"
3127 h264_metadata_bsf_select="cbs_h264"
3128 h264_redundant_pps_bsf_select="cbs_h264"
3129 hevc_metadata_bsf_select="cbs_h265"
3130 mjpeg2jpeg_bsf_select="jpegtables"
3131 mpeg2_metadata_bsf_select="cbs_mpeg2"
3132 trace_headers_bsf_select="cbs"
3133 vp9_metadata_bsf_select="cbs_vp9"
3134
3135 # external libraries
3136 aac_at_decoder_deps="audiotoolbox"
3137 aac_at_decoder_select="aac_adtstoasc_bsf"
3138 ac3_at_decoder_deps="audiotoolbox"
3139 ac3_at_decoder_select="ac3_parser"
3140 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3141 alac_at_decoder_deps="audiotoolbox"
3142 amr_nb_at_decoder_deps="audiotoolbox"
3143 avisynth_deps_any="libdl LoadLibrary"
3144 avisynth_demuxer_deps="avisynth"
3145 avisynth_demuxer_select="riffdec"
3146 eac3_at_decoder_deps="audiotoolbox"
3147 eac3_at_decoder_select="ac3_parser"
3148 gsm_ms_at_decoder_deps="audiotoolbox"
3149 ilbc_at_decoder_deps="audiotoolbox"
3150 mp1_at_decoder_deps="audiotoolbox"
3151 mp2_at_decoder_deps="audiotoolbox"
3152 mp3_at_decoder_deps="audiotoolbox"
3153 mp1_at_decoder_select="mpegaudioheader"
3154 mp2_at_decoder_select="mpegaudioheader"
3155 mp3_at_decoder_select="mpegaudioheader"
3156 pcm_alaw_at_decoder_deps="audiotoolbox"
3157 pcm_mulaw_at_decoder_deps="audiotoolbox"
3158 qdmc_decoder_select="fft"
3159 qdmc_at_decoder_deps="audiotoolbox"
3160 qdm2_at_decoder_deps="audiotoolbox"
3161 aac_at_encoder_deps="audiotoolbox"
3162 aac_at_encoder_select="audio_frame_queue"
3163 alac_at_encoder_deps="audiotoolbox"
3164 alac_at_encoder_select="audio_frame_queue"
3165 ilbc_at_encoder_deps="audiotoolbox"
3166 ilbc_at_encoder_select="audio_frame_queue"
3167 pcm_alaw_at_encoder_deps="audiotoolbox"
3168 pcm_alaw_at_encoder_select="audio_frame_queue"
3169 pcm_mulaw_at_encoder_deps="audiotoolbox"
3170 pcm_mulaw_at_encoder_select="audio_frame_queue"
3171 chromaprint_muxer_deps="chromaprint"
3172 h264_videotoolbox_encoder_deps="pthreads"
3173 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3174 hevc_videotoolbox_encoder_deps="pthreads"
3175 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3176 libaom_av1_decoder_deps="libaom"
3177 libaom_av1_encoder_deps="libaom"
3178 libaom_av1_encoder_select="extract_extradata_bsf"
3179 libaribb24_decoder_deps="libaribb24"
3180 libcelt_decoder_deps="libcelt"
3181 libcodec2_decoder_deps="libcodec2"
3182 libcodec2_encoder_deps="libcodec2"
3183 libdav1d_decoder_deps="libdav1d"
3184 libdavs2_decoder_deps="libdavs2"
3185 libfdk_aac_decoder_deps="libfdk_aac"
3186 libfdk_aac_encoder_deps="libfdk_aac"
3187 libfdk_aac_encoder_select="audio_frame_queue"
3188 libgme_demuxer_deps="libgme"
3189 libgsm_decoder_deps="libgsm"
3190 libgsm_encoder_deps="libgsm"
3191 libgsm_ms_decoder_deps="libgsm"
3192 libgsm_ms_encoder_deps="libgsm"
3193 libilbc_decoder_deps="libilbc"
3194 libilbc_encoder_deps="libilbc"
3195 libkvazaar_encoder_deps="libkvazaar"
3196 libmodplug_demuxer_deps="libmodplug"
3197 libmp3lame_encoder_deps="libmp3lame"
3198 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3199 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3200 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3201 libopencore_amrnb_encoder_select="audio_frame_queue"
3202 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3203 libopenh264_decoder_deps="libopenh264"
3204 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3205 libopenh264_encoder_deps="libopenh264"
3206 libopenjpeg_decoder_deps="libopenjpeg"
3207 libopenjpeg_encoder_deps="libopenjpeg"
3208 libopenmpt_demuxer_deps="libopenmpt"
3209 libopus_decoder_deps="libopus"
3210 libopus_encoder_deps="libopus"
3211 libopus_encoder_select="audio_frame_queue"
3212 librav1e_encoder_deps="librav1e"
3213 librav1e_encoder_select="extract_extradata_bsf"
3214 librsvg_decoder_deps="librsvg"
3215 libshine_encoder_deps="libshine"
3216 libshine_encoder_select="audio_frame_queue"
3217 libspeex_decoder_deps="libspeex"
3218 libspeex_encoder_deps="libspeex"
3219 libspeex_encoder_select="audio_frame_queue"
3220 libtheora_encoder_deps="libtheora"
3221 libtwolame_encoder_deps="libtwolame"
3222 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3223 libvorbis_decoder_deps="libvorbis"
3224 libvorbis_encoder_deps="libvorbis libvorbisenc"
3225 libvorbis_encoder_select="audio_frame_queue"
3226 libvpx_vp8_decoder_deps="libvpx"
3227 libvpx_vp8_encoder_deps="libvpx"
3228 libvpx_vp9_decoder_deps="libvpx"
3229 libvpx_vp9_encoder_deps="libvpx"
3230 libwavpack_encoder_deps="libwavpack"
3231 libwavpack_encoder_select="audio_frame_queue"
3232 libwebp_encoder_deps="libwebp"
3233 libwebp_anim_encoder_deps="libwebp"
3234 libx262_encoder_deps="libx262"
3235 libx264_encoder_deps="libx264"
3236 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3237 libx264rgb_encoder_select="libx264_encoder"
3238 libx265_encoder_deps="libx265"
3239 libxavs_encoder_deps="libxavs"
3240 libxavs2_encoder_deps="libxavs2"
3241 libxvid_encoder_deps="libxvid"
3242 libzvbi_teletext_decoder_deps="libzvbi"
3243 vapoursynth_demuxer_deps="vapoursynth"
3244 videotoolbox_suggest="coreservices"
3245 videotoolbox_deps="corefoundation coremedia corevideo"
3246 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3247
3248 # demuxers / muxers
3249 ac3_demuxer_select="ac3_parser"
3250 act_demuxer_select="riffdec"
3251 aiff_muxer_select="iso_media"
3252 asf_demuxer_select="riffdec"
3253 asf_o_demuxer_select="riffdec"
3254 asf_muxer_select="riffenc"
3255 asf_stream_muxer_select="asf_muxer"
3256 av1_demuxer_select="av1_frame_merge_bsf av1_parser"
3257 avi_demuxer_select="iso_media riffdec exif"
3258 avi_muxer_select="riffenc"
3259 caf_demuxer_select="iso_media riffdec"
3260 caf_muxer_select="iso_media"
3261 dash_muxer_select="mp4_muxer"
3262 dash_demuxer_deps="libxml2"
3263 dirac_demuxer_select="dirac_parser"
3264 dts_demuxer_select="dca_parser"
3265 dtshd_demuxer_select="dca_parser"
3266 dv_demuxer_select="dvprofile"
3267 dv_muxer_select="dvprofile"
3268 dxa_demuxer_select="riffdec"
3269 eac3_demuxer_select="ac3_parser"
3270 f4v_muxer_select="mov_muxer"
3271 fifo_muxer_deps="threads"
3272 flac_demuxer_select="flac_parser"
3273 hds_muxer_select="flv_muxer"
3274 hls_muxer_select="mpegts_muxer"
3275 hls_muxer_suggest="gcrypt openssl"
3276 image2_alias_pix_demuxer_select="image2_demuxer"
3277 image2_brender_pix_demuxer_select="image2_demuxer"
3278 ipod_muxer_select="mov_muxer"
3279 ismv_muxer_select="mov_muxer"
3280 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3281 matroska_audio_muxer_select="matroska_muxer"
3282 matroska_demuxer_select="iso_media riffdec"
3283 matroska_demuxer_suggest="bzlib lzo zlib"
3284 matroska_muxer_select="iso_media riffenc"
3285 mmf_muxer_select="riffenc"
3286 mov_demuxer_select="iso_media riffdec"
3287 mov_demuxer_suggest="zlib"
3288 mov_muxer_select="iso_media riffenc rtpenc_chain"
3289 mp3_demuxer_select="mpegaudio_parser"
3290 mp3_muxer_select="mpegaudioheader"
3291 mp4_muxer_select="mov_muxer"
3292 mpegts_demuxer_select="iso_media"
3293 mpegts_muxer_select="adts_muxer latm_muxer"
3294 mpegtsraw_demuxer_select="mpegts_demuxer"
3295 mxf_muxer_select="golomb"
3296 mxf_d10_muxer_select="mxf_muxer"
3297 mxf_opatom_muxer_select="mxf_muxer"
3298 nut_muxer_select="riffenc"
3299 nuv_demuxer_select="riffdec"
3300 oga_muxer_select="ogg_muxer"
3301 ogg_demuxer_select="dirac_parse"
3302 ogv_muxer_select="ogg_muxer"
3303 opus_muxer_select="ogg_muxer"
3304 psp_muxer_select="mov_muxer"
3305 rtp_demuxer_select="sdp_demuxer"
3306 rtp_muxer_select="golomb jpegtables"
3307 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3308 rtsp_demuxer_select="http_protocol rtpdec"
3309 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3310 sap_demuxer_select="sdp_demuxer"
3311 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3312 sdp_demuxer_select="rtpdec"
3313 smoothstreaming_muxer_select="ismv_muxer"
3314 spdif_demuxer_select="adts_header"
3315 spdif_muxer_select="adts_header"
3316 spx_muxer_select="ogg_muxer"
3317 swf_demuxer_suggest="zlib"
3318 tak_demuxer_select="tak_parser"
3319 tg2_muxer_select="mov_muxer"
3320 tgp_muxer_select="mov_muxer"
3321 vobsub_demuxer_select="mpegps_demuxer"
3322 w64_demuxer_select="wav_demuxer"
3323 w64_muxer_select="wav_muxer"
3324 wav_demuxer_select="riffdec"
3325 wav_muxer_select="riffenc"
3326 webm_muxer_select="iso_media riffenc"
3327 webm_dash_manifest_demuxer_select="matroska_demuxer"
3328 wtv_demuxer_select="mpegts_demuxer riffdec"
3329 wtv_muxer_select="mpegts_muxer riffenc"
3330 xmv_demuxer_select="riffdec"
3331 xwma_demuxer_select="riffdec"
3332
3333 # indevs / outdevs
3334 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3335 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3336 alsa_indev_deps="alsa"
3337 alsa_outdev_deps="alsa"
3338 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3339 avfoundation_indev_suggest="coregraphics applicationservices"
3340 avfoundation_indev_extralibs="-framework Foundation"
3341 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3342 caca_outdev_deps="libcaca"
3343 decklink_deps_any="libdl LoadLibrary"
3344 decklink_indev_deps="decklink threads"
3345 decklink_indev_extralibs="-lstdc++"
3346 decklink_outdev_deps="decklink threads"
3347 decklink_outdev_suggest="libklvanc"
3348 decklink_outdev_extralibs="-lstdc++"
3349 dshow_indev_deps="IBaseFilter"
3350 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3351 fbdev_indev_deps="linux_fb_h"
3352 fbdev_outdev_deps="linux_fb_h"
3353 gdigrab_indev_deps="CreateDIBSection"
3354 gdigrab_indev_extralibs="-lgdi32"
3355 gdigrab_indev_select="bmp_decoder"
3356 iec61883_indev_deps="libiec61883"
3357 jack_indev_deps="libjack"
3358 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3359 kmsgrab_indev_deps="libdrm"
3360 lavfi_indev_deps="avfilter"
3361 libcdio_indev_deps="libcdio"
3362 libdc1394_indev_deps="libdc1394"
3363 openal_indev_deps="openal"
3364 opengl_outdev_deps="opengl"
3365 opengl_outdev_suggest="sdl2"
3366 oss_indev_deps_any="sys_soundcard_h"
3367 oss_outdev_deps_any="sys_soundcard_h"
3368 pulse_indev_deps="libpulse"
3369 pulse_outdev_deps="libpulse"
3370 sdl2_outdev_deps="sdl2"
3371 sndio_indev_deps="sndio"
3372 sndio_outdev_deps="sndio"
3373 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3374 v4l2_indev_suggest="libv4l2"
3375 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3376 v4l2_outdev_suggest="libv4l2"
3377 vfwcap_indev_deps="vfw32 vfwcap_defines"
3378 xcbgrab_indev_deps="libxcb"
3379 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3380 xv_outdev_deps="xlib"
3381
3382 # protocols
3383 async_protocol_deps="threads"
3384 bluray_protocol_deps="libbluray"
3385 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3386 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3387 ffrtmpcrypt_protocol_select="tcp_protocol"
3388 ffrtmphttp_protocol_conflict="librtmp_protocol"
3389 ffrtmphttp_protocol_select="http_protocol"
3390 ftp_protocol_select="tcp_protocol"
3391 gopher_protocol_select="network"
3392 http_protocol_select="tcp_protocol"
3393 http_protocol_suggest="zlib"
3394 httpproxy_protocol_select="tcp_protocol"
3395 httpproxy_protocol_suggest="zlib"
3396 https_protocol_select="tls_protocol"
3397 https_protocol_suggest="zlib"
3398 icecast_protocol_select="http_protocol"
3399 mmsh_protocol_select="http_protocol"
3400 mmst_protocol_select="network"
3401 rtmp_protocol_conflict="librtmp_protocol"
3402 rtmp_protocol_select="tcp_protocol"
3403 rtmp_protocol_suggest="zlib"
3404 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3405 rtmpe_protocol_suggest="zlib"
3406 rtmps_protocol_conflict="librtmp_protocol"
3407 rtmps_protocol_select="tls_protocol"
3408 rtmps_protocol_suggest="zlib"
3409 rtmpt_protocol_select="ffrtmphttp_protocol"
3410 rtmpt_protocol_suggest="zlib"
3411 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3412 rtmpte_protocol_suggest="zlib"
3413 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3414 rtmpts_protocol_suggest="zlib"
3415 rtp_protocol_select="udp_protocol"
3416 schannel_conflict="openssl gnutls libtls mbedtls"
3417 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3418 sctp_protocol_select="network"
3419 securetransport_conflict="openssl gnutls libtls mbedtls"
3420 srtp_protocol_select="rtp_protocol srtp"
3421 tcp_protocol_select="network"
3422 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3423 tls_protocol_select="tcp_protocol"
3424 udp_protocol_select="network"
3425 udplite_protocol_select="network"
3426 unix_protocol_deps="sys_un_h"
3427 unix_protocol_select="network"
3428
3429 # external library protocols
3430 librtmp_protocol_deps="librtmp"
3431 librtmpe_protocol_deps="librtmp"
3432 librtmps_protocol_deps="librtmp"
3433 librtmpt_protocol_deps="librtmp"
3434 librtmpte_protocol_deps="librtmp"
3435 libsmbclient_protocol_deps="libsmbclient gplv3"
3436 libsrt_protocol_deps="libsrt"
3437 libsrt_protocol_select="network"
3438 libssh_protocol_deps="libssh"
3439 libtls_conflict="openssl gnutls mbedtls"
3440 libzmq_protocol_deps="libzmq"
3441 libzmq_protocol_select="network"
3442
3443 # filters
3444 afftdn_filter_deps="avcodec"
3445 afftdn_filter_select="fft"
3446 afftfilt_filter_deps="avcodec"
3447 afftfilt_filter_select="fft"
3448 afir_filter_deps="avcodec"
3449 afir_filter_select="rdft"
3450 amovie_filter_deps="avcodec avformat"
3451 aresample_filter_deps="swresample"
3452 asr_filter_deps="pocketsphinx"
3453 ass_filter_deps="libass"
3454 atempo_filter_deps="avcodec"
3455 atempo_filter_select="rdft"
3456 avgblur_opencl_filter_deps="opencl"
3457 azmq_filter_deps="libzmq"
3458 blackframe_filter_deps="gpl"
3459 bm3d_filter_deps="avcodec"
3460 bm3d_filter_select="dct"
3461 boxblur_filter_deps="gpl"
3462 boxblur_opencl_filter_deps="opencl gpl"
3463 bs2b_filter_deps="libbs2b"
3464 colorkey_opencl_filter_deps="opencl"
3465 colormatrix_filter_deps="gpl"
3466 convolution_opencl_filter_deps="opencl"
3467 convolve_filter_deps="avcodec"
3468 convolve_filter_select="fft"
3469 coreimage_filter_deps="coreimage appkit"
3470 coreimage_filter_extralibs="-framework OpenGL"
3471 coreimagesrc_filter_deps="coreimage appkit"
3472 coreimagesrc_filter_extralibs="-framework OpenGL"
3473 cover_rect_filter_deps="avcodec avformat gpl"
3474 cropdetect_filter_deps="gpl"
3475 deconvolve_filter_deps="avcodec"
3476 deconvolve_filter_select="fft"
3477 deinterlace_qsv_filter_deps="libmfx"
3478 deinterlace_vaapi_filter_deps="vaapi"
3479 delogo_filter_deps="gpl"
3480 denoise_vaapi_filter_deps="vaapi"
3481 derain_filter_select="dnn"
3482 deshake_filter_select="pixelutils"
3483 deshake_opencl_filter_deps="opencl"
3484 dilation_opencl_filter_deps="opencl"
3485 dnn_processing_filter_select="dnn"
3486 drawtext_filter_deps="libfreetype"
3487 drawtext_filter_suggest="libfontconfig libfribidi"
3488 elbg_filter_deps="avcodec"
3489 eq_filter_deps="gpl"
3490 erosion_opencl_filter_deps="opencl"
3491 fftfilt_filter_deps="avcodec"
3492 fftfilt_filter_select="rdft"
3493 fftdnoiz_filter_deps="avcodec"
3494 fftdnoiz_filter_select="fft"
3495 find_rect_filter_deps="avcodec avformat gpl"
3496 firequalizer_filter_deps="avcodec"
3497 firequalizer_filter_select="rdft"
3498 flite_filter_deps="libflite"
3499 framerate_filter_select="scene_sad"
3500 freezedetect_filter_select="scene_sad"
3501 frei0r_filter_deps="frei0r libdl"
3502 frei0r_src_filter_deps="frei0r libdl"
3503 fspp_filter_deps="gpl"
3504 geq_filter_deps="gpl"
3505 headphone_filter_select="fft"
3506 histeq_filter_deps="gpl"
3507 hqdn3d_filter_deps="gpl"
3508 interlace_filter_deps="gpl"
3509 kerndeint_filter_deps="gpl"
3510 ladspa_filter_deps="ladspa libdl"
3511 lensfun_filter_deps="liblensfun version3"
3512 lv2_filter_deps="lv2"
3513 mcdeint_filter_deps="avcodec gpl"
3514 movie_filter_deps="avcodec avformat"
3515 mpdecimate_filter_deps="gpl"
3516 mpdecimate_filter_select="pixelutils"
3517 minterpolate_filter_select="scene_sad"
3518 mptestsrc_filter_deps="gpl"
3519 negate_filter_deps="lut_filter"
3520 nlmeans_opencl_filter_deps="opencl"
3521 nnedi_filter_deps="gpl"
3522 ocr_filter_deps="libtesseract"
3523 ocv_filter_deps="libopencv"
3524 openclsrc_filter_deps="opencl"
3525 overlay_opencl_filter_deps="opencl"
3526 overlay_qsv_filter_deps="libmfx"
3527 overlay_qsv_filter_select="qsvvpp"
3528 owdenoise_filter_deps="gpl"
3529 pan_filter_deps="swresample"
3530 perspective_filter_deps="gpl"
3531 phase_filter_deps="gpl"
3532 pp7_filter_deps="gpl"
3533 pp_filter_deps="gpl postproc"
3534 prewitt_opencl_filter_deps="opencl"
3535 procamp_vaapi_filter_deps="vaapi"
3536 program_opencl_filter_deps="opencl"
3537 pullup_filter_deps="gpl"
3538 removelogo_filter_deps="avcodec avformat swscale"
3539 repeatfields_filter_deps="gpl"
3540 resample_filter_deps="avresample"
3541 roberts_opencl_filter_deps="opencl"
3542 rubberband_filter_deps="librubberband"
3543 sab_filter_deps="gpl swscale"
3544 scale2ref_filter_deps="swscale"
3545 scale_filter_deps="swscale"
3546 scale_qsv_filter_deps="libmfx"
3547 select_filter_select="scene_sad"
3548 sharpness_vaapi_filter_deps="vaapi"
3549 showcqt_filter_deps="avcodec avformat swscale"
3550 showcqt_filter_suggest="libfontconfig libfreetype"
3551 showcqt_filter_select="fft"
3552 showfreqs_filter_deps="avcodec"
3553 showfreqs_filter_select="fft"
3554 showspatial_filter_select="fft"
3555 showspectrum_filter_deps="avcodec"
3556 showspectrum_filter_select="fft"
3557 showspectrumpic_filter_deps="avcodec"
3558 showspectrumpic_filter_select="fft"
3559 signature_filter_deps="gpl avcodec avformat"
3560 sinc_filter_select="rdft"
3561 smartblur_filter_deps="gpl swscale"
3562 sobel_opencl_filter_deps="opencl"
3563 sofalizer_filter_deps="libmysofa avcodec"
3564 sofalizer_filter_select="fft"
3565 spectrumsynth_filter_deps="avcodec"
3566 spectrumsynth_filter_select="fft"
3567 spp_filter_deps="gpl avcodec"
3568 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3569 sr_filter_deps="avformat swscale"
3570 sr_filter_select="dnn"
3571 stereo3d_filter_deps="gpl"
3572 subtitles_filter_deps="avformat avcodec libass"
3573 super2xsai_filter_deps="gpl"
3574 pixfmts_super2xsai_test_deps="super2xsai_filter"
3575 superequalizer_filter_select="rdft"
3576 surround_filter_select="rdft"
3577 tinterlace_filter_deps="gpl"
3578 tinterlace_merge_test_deps="tinterlace_filter"
3579 tinterlace_pad_test_deps="tinterlace_filter"
3580 tonemap_filter_deps="const_nan"
3581 tonemap_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer_output_hdr_metadata"
3582 tonemap_opencl_filter_deps="opencl const_nan"
3583 transpose_opencl_filter_deps="opencl"
3584 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3585 unsharp_opencl_filter_deps="opencl"
3586 uspp_filter_deps="gpl avcodec"
3587 vaguedenoiser_filter_deps="gpl"
3588 vidstabdetect_filter_deps="libvidstab"
3589 vidstabtransform_filter_deps="libvidstab"
3590 libvmaf_filter_deps="libvmaf pthreads"
3591 zmq_filter_deps="libzmq"
3592 zoompan_filter_deps="swscale"
3593 zscale_filter_deps="libzimg const_nan"
3594 scale_vaapi_filter_deps="vaapi"
3595 vpp_qsv_filter_deps="libmfx"
3596 vpp_qsv_filter_select="qsvvpp"
3597 yadif_cuda_filter_deps="ffnvcodec"
3598 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3599
3600 # examples
3601 avio_dir_cmd_deps="avformat avutil"
3602 avio_reading_deps="avformat avcodec avutil"
3603 decode_audio_example_deps="avcodec avutil"
3604 decode_video_example_deps="avcodec avutil"
3605 demuxing_decoding_example_deps="avcodec avformat avutil"
3606 encode_audio_example_deps="avcodec avutil"
3607 encode_video_example_deps="avcodec avutil"
3608 extract_mvs_example_deps="avcodec avformat avutil"
3609 filter_audio_example_deps="avfilter avutil"
3610 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3611 filtering_video_example_deps="avfilter avcodec avformat avutil"
3612 http_multiclient_example_deps="avformat avutil fork"
3613 hw_decode_example_deps="avcodec avformat avutil"
3614 metadata_example_deps="avformat avutil"
3615 muxing_example_deps="avcodec avformat avutil swscale"
3616 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3617 remuxing_example_deps="avcodec avformat avutil"
3618 resampling_audio_example_deps="avutil swresample"
3619 scaling_video_example_deps="avutil swscale"
3620 transcode_aac_example_deps="avcodec avformat swresample"
3621 transcoding_example_deps="avfilter avcodec avformat avutil"
3622 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3623 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3624
3625 # EXTRALIBS_LIST
3626 cpu_init_extralibs="pthreads_extralibs"
3627 cws2fws_extralibs="zlib_extralibs"
3628
3629 # libraries, in any order
3630 avcodec_deps="avutil"
3631 avcodec_suggest="libm"
3632 avcodec_select="null_bsf"
3633 avdevice_deps="avformat avcodec avutil"
3634 avdevice_suggest="libm"
3635 avfilter_deps="avutil"
3636 avfilter_suggest="libm"
3637 avformat_deps="avcodec avutil"
3638 avformat_suggest="libm network zlib"
3639 avresample_deps="avutil"
3640 avresample_suggest="libm"
3641 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3642 postproc_deps="avutil gpl"
3643 postproc_suggest="libm"
3644 swresample_deps="avutil"
3645 swresample_suggest="libm libsoxr"
3646 swscale_deps="avutil"
3647 swscale_suggest="libm"
3648
3649 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3650 avfilter_extralibs="pthreads_extralibs"
3651 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3652
3653 # programs
3654 ffmpeg_deps="avcodec avfilter avformat"
3655 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3656                hflip_filter null_filter
3657                transpose_filter trim_filter vflip_filter"
3658 ffmpeg_suggest="ole32 psapi shell32"
3659 ffplay_deps="avcodec avformat swscale swresample sdl2"
3660 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3661 ffplay_suggest="shell32"
3662 ffprobe_deps="avcodec avformat"
3663 ffprobe_suggest="shell32"
3664
3665 # documentation
3666 podpages_deps="perl"
3667 manpages_deps="perl pod2man"
3668 htmlpages_deps="perl"
3669 htmlpages_deps_any="makeinfo_html texi2html"
3670 txtpages_deps="perl makeinfo"
3671 doc_deps_any="manpages htmlpages podpages txtpages"
3672
3673 # default parameters
3674
3675 logfile="ffbuild/config.log"
3676
3677 # installation paths
3678 prefix_default="/usr/local"
3679 bindir_default='${prefix}/bin'
3680 datadir_default='${prefix}/share/ffmpeg'
3681 docdir_default='${prefix}/share/doc/ffmpeg'
3682 incdir_default='${prefix}/include'
3683 libdir_default='${prefix}/lib'
3684 mandir_default='${prefix}/share/man'
3685
3686 # toolchain
3687 ar_default="ar"
3688 cc_default="gcc"
3689 cxx_default="g++"
3690 host_cc_default="gcc"
3691 doxygen_default="doxygen"
3692 install="install"
3693 ln_s_default="ln -s -f"
3694 nm_default="nm -g"
3695 pkg_config_default=pkg-config
3696 ranlib_default="ranlib"
3697 strip_default="strip"
3698 version_script='--version-script'
3699 objformat="elf32"
3700 x86asmexe_default="nasm"
3701 windres_default="windres"
3702 striptype="direct"
3703
3704 # OS
3705 target_os_default=$(tolower $(uname -s))
3706 host_os=$target_os_default
3707
3708 # machine
3709 if test "$target_os_default" = aix; then
3710     arch_default=$(uname -p)
3711     strip_default="strip -X32_64"
3712     nm_default="nm -g -X32_64"
3713 else
3714     arch_default=$(uname -m)
3715 fi
3716 cpu="generic"
3717 intrinsics="none"
3718
3719 # configurable options
3720 enable $PROGRAM_LIST
3721 enable $DOCUMENT_LIST
3722 enable $EXAMPLE_LIST
3723 enable $(filter_out avresample $LIBRARY_LIST)
3724 enable stripping
3725
3726 enable asm
3727 enable debug
3728 enable doc
3729 enable faan faandct faanidct
3730 enable optimizations
3731 enable runtime_cpudetect
3732 enable safe_bitstream_reader
3733 enable static
3734 enable swscale_alpha
3735 enable valgrind_backtrace
3736
3737 sws_max_filter_size_default=256
3738 set_default sws_max_filter_size
3739
3740 # internal components are enabled by default
3741 enable $EXTRALIBS_LIST
3742
3743 # Avoid external, non-system, libraries getting enabled by dependency resolution
3744 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3745
3746 # build settings
3747 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3748 LIBPREF="lib"
3749 LIBSUF=".a"
3750 FULLNAME='$(NAME)$(BUILDSUF)'
3751 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3752 SLIBPREF="lib"
3753 SLIBSUF=".so"
3754 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3755 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3756 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3757 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3758 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3759 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3760 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3761
3762 asflags_filter=echo
3763 cflags_filter=echo
3764 ldflags_filter=echo
3765
3766 AS_C='-c'
3767 AS_O='-o $@'
3768 CC_C='-c'
3769 CC_E='-E -o $@'
3770 CC_O='-o $@'
3771 CXX_C='-c'
3772 CXX_O='-o $@'
3773 OBJCC_C='-c'
3774 OBJCC_E='-E -o $@'
3775 OBJCC_O='-o $@'
3776 X86ASM_O='-o $@'
3777 LD_O='-o $@'
3778 LD_LIB='-l%'
3779 LD_PATH='-L'
3780 HOSTCC_C='-c'
3781 HOSTCC_E='-E -o $@'
3782 HOSTCC_O='-o $@'
3783 HOSTLD_O='-o $@'
3784 NVCC_C='-c'
3785 NVCC_O='-o $@'
3786
3787 host_extralibs='-lm'
3788 host_cflags_filter=echo
3789 host_ldflags_filter=echo
3790
3791 target_path='$(CURDIR)'
3792
3793 # since the object filename is not given with the -MM flag, the compiler
3794 # is only able to print the basename, and we must add the path ourselves
3795 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3796 DEPFLAGS='-MM'
3797
3798 mkdir -p ffbuild
3799
3800 # find source path
3801 if test -f configure; then
3802     source_path=.
3803 elif test -f src/configure; then
3804     source_path=src
3805 else
3806     source_path=$(cd $(dirname "$0"); pwd)
3807     case "$source_path" in
3808         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3809     esac
3810     test -e "$source_path/config.h" &&
3811         die "Out of tree builds are impossible with config.h in source dir."
3812 fi
3813
3814 for v in "$@"; do
3815     r=${v#*=}
3816     l=${v%"$r"}
3817     r=$(sh_quote "$r")
3818     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3819 done
3820
3821 find_things_extern(){
3822     thing=$1
3823     pattern=$2
3824     file=$source_path/$3
3825     out=${4:-$thing}
3826     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3827 }
3828
3829 find_filters_extern(){
3830     file=$source_path/$1
3831     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3832 }
3833
3834 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3835 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3836 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3837 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3838 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3839 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3840 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3841 CODEC_LIST="
3842     $ENCODER_LIST
3843     $DECODER_LIST
3844 "
3845 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3846 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3847 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3848 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3849
3850 AVCODEC_COMPONENTS_LIST="
3851     $BSF_LIST
3852     $DECODER_LIST
3853     $ENCODER_LIST
3854     $HWACCEL_LIST
3855     $PARSER_LIST
3856 "
3857
3858 AVDEVICE_COMPONENTS_LIST="
3859     $INDEV_LIST
3860     $OUTDEV_LIST
3861 "
3862
3863 AVFILTER_COMPONENTS_LIST="
3864     $FILTER_LIST
3865 "
3866
3867 AVFORMAT_COMPONENTS_LIST="
3868     $DEMUXER_LIST
3869     $MUXER_LIST
3870     $PROTOCOL_LIST
3871 "
3872
3873 ALL_COMPONENTS="
3874     $AVCODEC_COMPONENTS_LIST
3875     $AVDEVICE_COMPONENTS_LIST
3876     $AVFILTER_COMPONENTS_LIST
3877     $AVFORMAT_COMPONENTS_LIST
3878 "
3879
3880 for n in $COMPONENT_LIST; do
3881     v=$(toupper ${n%s})_LIST
3882     eval enable \$$v
3883     eval ${n}_if_any="\$$v"
3884 done
3885
3886 enable $ARCH_EXT_LIST
3887
3888 die_unknown(){
3889     echo "Unknown option \"$1\"."
3890     echo "See $0 --help for available options."
3891     exit 1
3892 }
3893
3894 print_in_columns() {
3895     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3896     {
3897         num_cols = width > col_width ? int(width / col_width) : 1;
3898         num_rows = int((NF + num_cols-1) / num_cols);
3899         y = x = 1;
3900         for (y = 1; y <= num_rows; y++) {
3901             i = y;
3902             for (x = 1; x <= num_cols; x++) {
3903                 if (i <= NF) {
3904                   line = sprintf("%s%-" col_width "s", line, $i);
3905                 }
3906                 i = i + num_rows;
3907             }
3908             print line; line = "";
3909         }
3910     }' | sed 's/ *$//'
3911 }
3912
3913 show_list() {
3914     suffix=_$1
3915     shift
3916     echo $* | sed s/$suffix//g | print_in_columns
3917     exit 0
3918 }
3919
3920 rand_list(){
3921     IFS=', '
3922     set -- $*
3923     unset IFS
3924     for thing; do
3925         comp=${thing%:*}
3926         prob=${thing#$comp}
3927         prob=${prob#:}
3928         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3929         echo "prob ${prob:-0.5}"
3930         printf '%s\n' $comp
3931     done
3932 }
3933
3934 do_random(){
3935     action=$1
3936     shift
3937     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3938     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3939 }
3940
3941 for opt do
3942     optval="${opt#*=}"
3943     case "$opt" in
3944         --extra-ldflags=*)
3945             add_ldflags $optval
3946         ;;
3947         --extra-ldexeflags=*)
3948             add_ldexeflags $optval
3949         ;;
3950         --extra-ldsoflags=*)
3951             add_ldsoflags $optval
3952         ;;
3953         --extra-ldlibflags=*)
3954             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3955                  "removed in the future. Use --extra-ldsoflags instead."
3956             add_ldsoflags $optval
3957         ;;
3958         --extra-libs=*)
3959             add_extralibs $optval
3960         ;;
3961         --disable-devices)
3962             disable $INDEV_LIST $OUTDEV_LIST
3963         ;;
3964         --enable-debug=*)
3965             debuglevel="$optval"
3966         ;;
3967         --disable-programs)
3968             disable $PROGRAM_LIST
3969         ;;
3970         --disable-everything)
3971             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3972         ;;
3973         --disable-all)
3974             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3975             disable $LIBRARY_LIST $PROGRAM_LIST doc
3976             enable avutil
3977         ;;
3978         --enable-random|--disable-random)
3979             action=${opt%%-random}
3980             do_random ${action#--} $COMPONENT_LIST
3981         ;;
3982         --enable-random=*|--disable-random=*)
3983             action=${opt%%-random=*}
3984             do_random ${action#--} $optval
3985         ;;
3986         --enable-sdl)
3987             enable sdl2
3988         ;;
3989         --enable-*=*|--disable-*=*)
3990             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3991             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3992             eval list=\$$(toupper $thing)_LIST
3993             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3994             list=$(filter "$name" $list)
3995             [ "$list" = "" ] && warn "Option $opt did not match anything"
3996             test $action = enable && warn_if_gets_disabled $list
3997             $action $list
3998         ;;
3999         --enable-yasm|--disable-yasm)
4000             warn "The ${opt} option is only provided for compatibility and will be\n"\
4001                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
4002             test $opt = --enable-yasm && x86asm=yes || x86asm=no
4003         ;;
4004         --yasmexe=*)
4005             warn "The --yasmexe option is only provided for compatibility and will be\n"\
4006                  "removed in the future. Use --x86asmexe instead."
4007             x86asmexe="$optval"
4008         ;;
4009         --enable-?*|--disable-?*)
4010             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
4011             if is_in $option $COMPONENT_LIST; then
4012                 test $action = disable && action=unset
4013                 eval $action \$$(toupper ${option%s})_LIST
4014             elif is_in $option $CMDLINE_SELECT; then
4015                 $action $option
4016             else
4017                 die_unknown $opt
4018             fi
4019         ;;
4020         --list-*)
4021             NAME="${opt#--list-}"
4022             is_in $NAME $COMPONENT_LIST || die_unknown $opt
4023             NAME=${NAME%s}
4024             eval show_list $NAME \$$(toupper $NAME)_LIST
4025         ;;
4026         --help|-h) show_help
4027         ;;
4028         --quiet|-q) quiet=yes
4029         ;;
4030         --fatal-warnings) enable fatal_warnings
4031         ;;
4032         --libfuzzer=*)
4033             libfuzzer_path="$optval"
4034         ;;
4035         *)
4036             optname="${opt%%=*}"
4037             optname="${optname#--}"
4038             optname=$(echo "$optname" | sed 's/-/_/g')
4039             if is_in $optname $CMDLINE_SET; then
4040                 eval $optname='$optval'
4041             elif is_in $optname $CMDLINE_APPEND; then
4042                 append $optname "$optval"
4043             else
4044                 die_unknown $opt
4045             fi
4046         ;;
4047     esac
4048 done
4049
4050 for e in $env; do
4051     eval "export $e"
4052 done
4053
4054 if disabled autodetect; then
4055
4056     # Unless iconv is explicitely disabled by the user, we still want to probe
4057     # for the iconv from the libc.
4058     disabled iconv || enable libc_iconv
4059
4060     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4061     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4062 fi
4063 # Mark specifically enabled, but normally autodetected libraries as requested.
4064 for lib in $AUTODETECT_LIBS; do
4065     enabled $lib && request $lib
4066 done
4067 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4068 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4069 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4070
4071 disabled logging && logfile=/dev/null
4072
4073 # command line configuration sanity checks
4074
4075 # we need to build at least one lib type
4076 if ! enabled_any static shared; then
4077     cat <<EOF
4078 At least one library type must be built.
4079 Specify --enable-static to build the static libraries or --enable-shared to
4080 build the shared libraries as well. To only build the shared libraries specify
4081 --disable-static in addition to --enable-shared.
4082 EOF
4083     exit 1
4084 fi
4085
4086 die_license_disabled() {
4087     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4088 }
4089
4090 die_license_disabled_gpl() {
4091     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4092 }
4093
4094 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4095 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4096
4097 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4098 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4099
4100 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4101
4102 if enabled nonfree; then
4103     license="nonfree and unredistributable"
4104 elif enabled gplv3; then
4105     license="GPL version 3 or later"
4106 elif enabled lgplv3; then
4107     license="LGPL version 3 or later"
4108 elif enabled gpl; then
4109     license="GPL version 2 or later"
4110 else
4111     license="LGPL version 2.1 or later"
4112 fi
4113
4114 enabled_all gnutls openssl &&
4115     die "GnuTLS and OpenSSL must not be enabled at the same time."
4116
4117 enabled_all gnutls mbedtls &&
4118     die "GnuTLS and mbedTLS must not be enabled at the same time."
4119
4120 enabled_all openssl mbedtls &&
4121     die "OpenSSL and mbedTLS must not be enabled at the same time."
4122
4123 # Disable all the library-specific components if the library itself
4124 # is disabled, see AVCODEC_LIST and following _LIST variables.
4125
4126 disable_components(){
4127     disabled ${1} && disable $(
4128         eval components="\$$(toupper ${1})_COMPONENTS"
4129         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4130     )
4131 }
4132
4133 map 'disable_components $v' $LIBRARY_LIST
4134
4135 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4136 set >> $logfile
4137
4138 test -n "$valgrind" && toolchain="valgrind-memcheck"
4139
4140 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4141     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4142     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4143 }
4144
4145 case "$toolchain" in
4146     *-asan)
4147         cc_default="${toolchain%-asan}"
4148         add_cflags  -fsanitize=address
4149         add_ldflags -fsanitize=address
4150     ;;
4151     *-msan)
4152         cc_default="${toolchain%-msan}"
4153         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4154         add_ldflags -fsanitize=memory
4155     ;;
4156     *-tsan)
4157         cc_default="${toolchain%-tsan}"
4158         add_cflags  -fsanitize=thread
4159         add_ldflags -fsanitize=thread
4160         case "$toolchain" in
4161             gcc-tsan)
4162                 add_cflags  -fPIC
4163                 add_ldflags -fPIC
4164                 ;;
4165         esac
4166     ;;
4167     *-usan)
4168         cc_default="${toolchain%-usan}"
4169         add_cflags  -fsanitize=undefined
4170         add_ldflags -fsanitize=undefined
4171     ;;
4172     valgrind-*)
4173         target_exec_default="valgrind"
4174         case "$toolchain" in
4175             valgrind-massif)
4176                 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"
4177                 ;;
4178             valgrind-memcheck)
4179                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4180                 ;;
4181         esac
4182     ;;
4183     msvc)
4184         # Check whether the current MSVC version needs the C99 converter.
4185         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4186         # support enough of C99 to build ffmpeg. Default to the new
4187         # behaviour if the regexp was unable to match anything, since this
4188         # successfully parses the version number of existing supported
4189         # versions that require the converter (MSVC 2010 and 2012).
4190         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4191         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4192             cc_default="cl.exe"
4193             cxx_default="cl.exe"
4194         else
4195             die "Unsupported MSVC version (2013 or newer required)"
4196         fi
4197         ld_default="$source_path/compat/windows/mslink"
4198         nm_default="dumpbin.exe -symbols"
4199         ar_default="lib.exe"
4200         case "$arch" in
4201         aarch64|arm64)
4202             as_default="armasm64.exe"
4203             ;;
4204         arm*)
4205             as_default="armasm.exe"
4206             ;;
4207         esac
4208         target_os_default="win32"
4209         # Use a relative path for TMPDIR. This makes sure all the
4210         # ffconf temp files are written with a relative path, avoiding
4211         # issues with msys/win32 path conversion for MSVC parameters
4212         # such as -Fo<file> or -out:<file>.
4213         TMPDIR=.
4214     ;;
4215     icl)
4216         cc_default="icl"
4217         ld_default="xilink"
4218         nm_default="dumpbin -symbols"
4219         ar_default="xilib"
4220         target_os_default="win32"
4221         TMPDIR=.
4222     ;;
4223     gcov)
4224         add_cflags  -fprofile-arcs -ftest-coverage
4225         add_ldflags -fprofile-arcs -ftest-coverage
4226     ;;
4227     llvm-cov)
4228         add_cflags -fprofile-arcs -ftest-coverage
4229         add_ldflags --coverage
4230     ;;
4231     hardened)
4232         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4233         add_cflags   -fno-strict-overflow -fstack-protector-all
4234         add_ldflags  -Wl,-z,relro -Wl,-z,now
4235         add_cflags   -fPIE
4236         add_ldexeflags -fPIE -pie
4237     ;;
4238     ?*)
4239         die "Unknown toolchain $toolchain"
4240     ;;
4241 esac
4242
4243 if test -n "$cross_prefix"; then
4244     test -n "$arch" && test -n "$target_os" ||
4245         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4246     enable cross_compile
4247 fi
4248
4249 set_default target_os
4250 if test "$target_os" = android; then
4251     cc_default="clang"
4252 fi
4253
4254 ar_default="${cross_prefix}${ar_default}"
4255 cc_default="${cross_prefix}${cc_default}"
4256 cxx_default="${cross_prefix}${cxx_default}"
4257 nm_default="${cross_prefix}${nm_default}"
4258 pkg_config_default="${cross_prefix}${pkg_config_default}"
4259 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4260     ranlib_default="${cross_prefix}${ranlib_default} -D"
4261 else
4262     ranlib_default="${cross_prefix}${ranlib_default}"
4263 fi
4264 strip_default="${cross_prefix}${strip_default}"
4265 windres_default="${cross_prefix}${windres_default}"
4266
4267 sysinclude_default="${sysroot}/usr/include"
4268
4269 if enabled cuda_sdk; then
4270     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4271     enable cuda_nvcc
4272 fi
4273
4274 if enabled cuda_nvcc; then
4275     nvcc_default="nvcc"
4276     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4277 else
4278     nvcc_default="clang"
4279     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4280     NVCC_C=""
4281 fi
4282
4283 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4284     target_exec x86asmexe nvcc
4285 enabled cross_compile || host_cc_default=$cc
4286 set_default host_cc
4287
4288 pkg_config_fail_message=""
4289 if ! $pkg_config --version >/dev/null 2>&1; then
4290     warn "$pkg_config not found, library detection may fail."
4291     pkg_config=false
4292 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4293     pkg_config_fail_message="
4294 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4295 fi
4296
4297 if test $doxygen != $doxygen_default && \
4298   ! $doxygen --version >/dev/null 2>&1; then
4299     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4300 fi
4301
4302 exesuf() {
4303     case $1 in
4304         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4305     esac
4306 }
4307
4308 EXESUF=$(exesuf $target_os)
4309 HOSTEXESUF=$(exesuf $host_os)
4310
4311 # set temporary file name
4312 : ${TMPDIR:=$TEMPDIR}
4313 : ${TMPDIR:=$TMP}
4314 : ${TMPDIR:=/tmp}
4315
4316 if [ -n "$tempprefix" ] ; then
4317     mktemp(){
4318         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4319         echo "$tmpname"
4320         mkdir "$tmpname"
4321     }
4322 elif ! test_cmd mktemp -u XXXXXX; then
4323     # simple replacement for missing mktemp
4324     # NOT SAFE FOR GENERAL USE
4325     mktemp(){
4326         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4327         echo "$tmpname"
4328         mkdir "$tmpname"
4329     }
4330 fi
4331
4332 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4333     die "Unable to create temporary directory in $TMPDIR."
4334
4335 tmpfile(){
4336     tmp="${FFTMPDIR}/test"$2
4337     (set -C; exec > $tmp) 2> /dev/null ||
4338         die "Unable to create temporary file in $FFTMPDIR."
4339     eval $1=$tmp
4340 }
4341
4342 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4343 trap 'exit 2' INT
4344
4345 tmpfile TMPASM .asm
4346 tmpfile TMPC   .c
4347 tmpfile TMPCPP .cpp
4348 tmpfile TMPE   $EXESUF
4349 tmpfile TMPH   .h
4350 tmpfile TMPM   .m
4351 tmpfile TMPCU  .cu
4352 tmpfile TMPO   .o
4353 tmpfile TMPS   .S
4354 tmpfile TMPSH  .sh
4355 tmpfile TMPV   .ver
4356
4357 unset -f mktemp
4358
4359 chmod +x $TMPE
4360
4361 # make sure we can execute files in $TMPDIR
4362 cat > $TMPSH 2>> $logfile <<EOF
4363 #! /bin/sh
4364 EOF
4365 chmod +x $TMPSH >> $logfile 2>&1
4366 if ! $TMPSH >> $logfile 2>&1; then
4367     cat <<EOF
4368 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4369 variable to another directory and make sure that it is not mounted noexec.
4370 EOF
4371     die "Sanity test failed."
4372 fi
4373
4374 armasm_flags(){
4375     for flag; do
4376         case $flag in
4377             # Filter out MSVC cl.exe options from cflags that shouldn't
4378             # be passed to gas-preprocessor
4379             -M[TD]*)                                            ;;
4380             *)                  echo $flag                      ;;
4381         esac
4382    done
4383 }
4384
4385 cparser_flags(){
4386     for flag; do
4387         case $flag in
4388             -Wno-switch)             echo -Wno-switch-enum ;;
4389             -Wno-format-zero-length) ;;
4390             -Wdisabled-optimization) ;;
4391             -Wno-pointer-sign)       echo -Wno-other ;;
4392             *)                       echo $flag ;;
4393         esac
4394     done
4395 }
4396
4397 msvc_common_flags(){
4398     for flag; do
4399         case $flag in
4400             # In addition to specifying certain flags under the compiler
4401             # specific filters, they must be specified here as well or else the
4402             # generic catch all at the bottom will print the original flag.
4403             -Wall)                ;;
4404             -Wextra)              ;;
4405             -std=c99)             ;;
4406             # Common flags
4407             -fomit-frame-pointer) ;;
4408             -g)                   echo -Z7 ;;
4409             -fno-math-errno)      ;;
4410             -fno-common)          ;;
4411             -fno-signed-zeros)    ;;
4412             -fPIC)                ;;
4413             -mthumb)              ;;
4414             -march=*)             ;;
4415             -lz)                  echo zlib.lib ;;
4416             -lx264)               echo libx264.lib ;;
4417             -lstdc++)             ;;
4418             -l*)                  echo ${flag#-l}.lib ;;
4419             -LARGEADDRESSAWARE)   echo $flag ;;
4420             -L*)                  echo -libpath:${flag#-L} ;;
4421             *)                    echo $flag ;;
4422         esac
4423     done
4424 }
4425
4426 msvc_flags(){
4427     msvc_common_flags "$@"
4428     for flag; do
4429         case $flag in
4430             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4431                                        -wd4554 ;;
4432             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4433                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4434                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4435                                        -wd4307 \
4436                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4437         esac
4438     done
4439 }
4440
4441 icl_flags(){
4442     msvc_common_flags "$@"
4443     for flag; do
4444         case $flag in
4445             # Despite what Intel's documentation says -Wall, which is supported
4446             # on Windows, does enable remarks so disable them here.
4447             -Wall)                echo $flag -Qdiag-disable:remark ;;
4448             -std=c99)             echo -Qstd=c99 ;;
4449             -flto)                echo -ipo ;;
4450         esac
4451     done
4452 }
4453
4454 icc_flags(){
4455     for flag; do
4456         case $flag in
4457             -flto)                echo -ipo ;;
4458             *)                    echo $flag ;;
4459         esac
4460     done
4461 }
4462
4463 suncc_flags(){
4464     for flag; do
4465         case $flag in
4466             -march=*|-mcpu=*)
4467                 case "${flag#*=}" in
4468                     native)                   echo -xtarget=native       ;;
4469                     v9|niagara)               echo -xarch=sparc          ;;
4470                     ultrasparc)               echo -xarch=sparcvis       ;;
4471                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4472                     i586|pentium)             echo -xchip=pentium        ;;
4473                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4474                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4475                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4476                     pentium4*)          echo -xtarget=pentium4           ;;
4477                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4478                     *-sse3)             echo -xarch=sse3                 ;;
4479                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4480                     bonnell)                   echo -xarch=ssse3         ;;
4481                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4482                     westmere)                  echo -xtarget=westmere    ;;
4483                     silvermont)                echo -xarch=sse4_2        ;;
4484                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4485                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4486                                                echo -xarch=avx           ;;
4487                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4488                     btver1)                    echo -xarch=amdsse4a      ;;
4489                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4490                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4491                     k8|opteron|athlon64|athlon-fx)
4492                                                echo -xarch=sse2a         ;;
4493                     athlon*)                   echo -xarch=pentium_proa  ;;
4494                 esac
4495                 ;;
4496             -std=c99)             echo -xc99              ;;
4497             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4498             -fPIC)                echo -KPIC -xcode=pic32 ;;
4499             -W*,*)                echo $flag              ;;
4500             -f*-*|-W*|-mimpure-text)                      ;;
4501             -shared)              echo -G                 ;;
4502             *)                    echo $flag              ;;
4503         esac
4504     done
4505 }
4506
4507 probe_cc(){
4508     pfx=$1
4509     _cc=$2
4510     first=$3
4511
4512     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4513     unset _ld_o _ldflags _ld_lib _ld_path
4514     unset _depflags _DEPCMD _DEPFLAGS
4515     _flags_filter=echo
4516
4517     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4518         true # no-op to avoid reading stdin in following checks
4519     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4520         _type=llvm_gcc
4521         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4522         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4523         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4524         _cflags_speed='-O3'
4525         _cflags_size='-Os'
4526     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4527         _type=gcc
4528         gcc_version=$($_cc --version | head -n1)
4529         gcc_basever=$($_cc -dumpversion)
4530         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4531         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4532         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4533         case $gcc_basever in
4534             2) ;;
4535             2.*) ;;
4536             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4537         esac
4538         if [ "$first" = true ]; then
4539             case $gcc_basever in
4540                 4.2*)
4541                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4542             esac
4543         fi
4544         _cflags_speed='-O3'
4545         _cflags_size='-Os'
4546     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4547         _type=icc
4548         _ident=$($_cc --version | head -n1)
4549         _depflags='-MMD'
4550         _cflags_speed='-O3'
4551         _cflags_size='-Os'
4552         _cflags_noopt='-O1'
4553         _flags_filter=icc_flags
4554     elif $_cc -v 2>&1 | grep -q xlc; then
4555         _type=xlc
4556         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4557         _cflags_speed='-O5'
4558         _cflags_size='-O5 -qcompact'
4559     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4560         test -d "$sysroot" || die "No valid sysroot specified."
4561         _type=armcc
4562         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4563         armcc_conf="$PWD/armcc.conf"
4564         $_cc --arm_linux_configure                 \
4565              --arm_linux_config_file="$armcc_conf" \
4566              --configure_sysroot="$sysroot"        \
4567              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4568              die "Error creating armcc configuration file."
4569         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4570         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4571         as_default="${cross_prefix}gcc"
4572         _depflags='-MMD'
4573         _cflags_speed='-O3'
4574         _cflags_size='-Os'
4575     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4576         _type=clang
4577         _ident=$($_cc --version 2>/dev/null | head -n1)
4578         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4579         _cflags_speed='-O3'
4580         _cflags_size='-Oz'
4581     elif $_cc -V 2>&1 | grep -q Sun; then
4582         _type=suncc
4583         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4584         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4585         _DEPFLAGS='-xM1 -xc99'
4586         _ldflags='-std=c99'
4587         _cflags_speed='-O5'
4588         _cflags_size='-O5 -xspace'
4589         _flags_filter=suncc_flags
4590     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4591         _type=pathscale
4592         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4593         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4594         _cflags_speed='-O2'
4595         _cflags_size='-Os'
4596         _flags_filter='filter_out -Wdisabled-optimization'
4597     elif $_cc -v 2>&1 | grep -q Open64; then
4598         _type=open64
4599         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4600         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4601         _cflags_speed='-O2'
4602         _cflags_size='-Os'
4603         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4604     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4605         _type=armasm
4606         _ident=$($_cc | head -n1)
4607         # 4509: "This form of conditional instruction is deprecated"
4608         _flags="-nologo -ignore 4509"
4609         _flags_filter=armasm_flags
4610     elif $_cc 2>&1 | grep -q Intel; then
4611         _type=icl
4612         _ident=$($_cc 2>&1 | head -n1)
4613         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4614         # Not only is O3 broken on 13.x+ but it is slower on all previous
4615         # versions (tested) as well.
4616         _cflags_speed="-O2"
4617         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4618         if $_cc 2>&1 | grep -q Linker; then
4619             _ld_o='-out:$@'
4620         else
4621             _ld_o='-Fe$@'
4622         fi
4623         _cc_o='-Fo$@'
4624         _cc_e='-P'
4625         _flags_filter=icl_flags
4626         _ld_lib='lib%.a'
4627         _ld_path='-libpath:'
4628         # -Qdiag-error to make icl error when seeing certain unknown arguments
4629         _flags='-nologo -Qdiag-error:4044,10157'
4630         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4631         # with MSVC which enables it by default.
4632         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4633         disable stripping
4634     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4635         # lld can emulate multiple different linkers; in ms link.exe mode,
4636         # the -? parameter gives the help output which contains an identifyable
4637         # string, while it gives an error in other modes.
4638         _type=lld-link
4639         # The link.exe mode doesn't have a switch for getting the version,
4640         # but we can force it back to gnu mode and get the version from there.
4641         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4642         _ld_o='-out:$@'
4643         _flags_filter=msvc_flags
4644         _ld_lib='lib%.a'
4645         _ld_path='-libpath:'
4646     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4647         _type=msvc
4648         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4649         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4650         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4651         _cflags_speed="-O2"
4652         _cflags_size="-O1"
4653         _cflags_noopt="-O1"
4654         if $_cc -nologo- 2>&1 | grep -q Linker; then
4655             _ld_o='-out:$@'
4656         else
4657             _ld_o='-Fe$@'
4658         fi
4659         _cc_o='-Fo$@'
4660         _cc_e='-P -Fi$@'
4661         _flags_filter=msvc_flags
4662         _ld_lib='lib%.a'
4663         _ld_path='-libpath:'
4664         _flags='-nologo'
4665         disable stripping
4666     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4667         _type=cparser
4668         _ident=$($_cc --version | head -n1)
4669         _depflags='-MMD'
4670         _cflags_speed='-O4'
4671         _cflags_size='-O2'
4672         _flags_filter=cparser_flags
4673     fi
4674
4675     eval ${pfx}_type=\$_type
4676     eval ${pfx}_ident=\$_ident
4677 }
4678
4679 set_ccvars(){
4680     eval ${1}_C=\${_cc_c-\${${1}_C}}
4681     eval ${1}_E=\${_cc_e-\${${1}_E}}
4682     eval ${1}_O=\${_cc_o-\${${1}_O}}
4683
4684     if [ -n "$_depflags" ]; then
4685         eval ${1}_DEPFLAGS=\$_depflags
4686     else
4687         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4688         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4689         eval DEP${1}FLAGS=\$_flags
4690     fi
4691 }
4692
4693 probe_cc cc "$cc" "true"
4694 cflags_filter=$_flags_filter
4695 cflags_speed=$_cflags_speed
4696 cflags_size=$_cflags_size
4697 cflags_noopt=$_cflags_noopt
4698 add_cflags $_flags $_cflags
4699 cc_ldflags=$_ldflags
4700 set_ccvars CC
4701 set_ccvars CXX
4702
4703 probe_cc hostcc "$host_cc"
4704 host_cflags_filter=$_flags_filter
4705 host_cflags_speed=$_cflags_speed
4706 add_host_cflags  $_flags $_cflags
4707 set_ccvars HOSTCC
4708
4709 test -n "$cc_type" && enable $cc_type ||
4710     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4711
4712 : ${as_default:=$cc}
4713 : ${objcc_default:=$cc}
4714 : ${dep_cc_default:=$cc}
4715 : ${ld_default:=$cc}
4716 : ${host_ld_default:=$host_cc}
4717 set_default ar as objcc dep_cc ld ln_s host_ld windres
4718
4719 probe_cc as "$as"
4720 asflags_filter=$_flags_filter
4721 add_asflags $_flags $_cflags
4722 set_ccvars AS
4723
4724 probe_cc objcc "$objcc"
4725 objcflags_filter=$_flags_filter
4726 add_objcflags $_flags $_cflags
4727 set_ccvars OBJC
4728
4729 probe_cc ld "$ld"
4730 ldflags_filter=$_flags_filter
4731 add_ldflags $_flags $_ldflags
4732 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4733 LD_O=${_ld_o-$LD_O}
4734 LD_LIB=${_ld_lib-$LD_LIB}
4735 LD_PATH=${_ld_path-$LD_PATH}
4736
4737 probe_cc hostld "$host_ld"
4738 host_ldflags_filter=$_flags_filter
4739 add_host_ldflags $_flags $_ldflags
4740 HOSTLD_O=${_ld_o-$HOSTLD_O}
4741
4742 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4743     probe_cc depcc "$dep_cc"
4744     CCDEP=${_DEPCMD:-$DEPCMD}
4745     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4746     DEPCCFLAGS=$_flags
4747 fi
4748
4749 if $ar 2>&1 | grep -q Microsoft; then
4750     arflags="-nologo"
4751     ar_o='-out:$@'
4752 elif $ar 2>&1 | grep -q "\[D\] "; then
4753     arflags="rcD"
4754     ar_o='$@'
4755 else
4756     arflags="rc"
4757     ar_o='$@'
4758 fi
4759
4760 add_cflags $extra_cflags
4761 add_cxxflags $extra_cxxflags
4762 add_objcflags $extra_objcflags
4763 add_asflags $extra_cflags
4764
4765 if test -n "$sysroot"; then
4766     case "$cc_type" in
4767         gcc|llvm_gcc|clang)
4768             add_cppflags --sysroot="$sysroot"
4769             add_ldflags --sysroot="$sysroot"
4770         ;;
4771     esac
4772 fi
4773
4774 if test "$cpu" = host; then
4775     enabled cross_compile &&
4776         die "--cpu=host makes no sense when cross-compiling."
4777
4778     case "$cc_type" in
4779         gcc|llvm_gcc)
4780             check_native(){
4781                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4782                 sed -n "/cc1.*$1=/{
4783                             s/.*$1=\\([^ ]*\\).*/\\1/
4784                             p
4785                             q
4786                         }" $TMPE
4787             }
4788             cpu=$(check_native -march || check_native -mcpu)
4789         ;;
4790         clang)
4791             check_native(){
4792                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4793                 sed -n "/cc1.*-target-cpu /{
4794                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4795                             p
4796                             q
4797                         }" $TMPE
4798             }
4799             cpu=$(check_native -march)
4800         ;;
4801     esac
4802
4803     test "${cpu:-host}" = host &&
4804         die "--cpu=host not supported with compiler $cc"
4805 fi
4806
4807 # Deal with common $arch aliases
4808 case "$arch" in
4809     aarch64|arm64)
4810         arch="aarch64"
4811     ;;
4812     arm*|iPad*|iPhone*)
4813         arch="arm"
4814     ;;
4815     mips*|IP*)
4816         case "$arch" in
4817         *el)
4818             add_cppflags -EL
4819             add_ldflags -EL
4820         ;;
4821         *eb)
4822             add_cppflags -EB
4823             add_ldflags -EB
4824         ;;
4825         esac
4826         arch="mips"
4827     ;;
4828     parisc*|hppa*)
4829         arch="parisc"
4830     ;;
4831     "Power Macintosh"|ppc*|powerpc*)
4832         arch="ppc"
4833     ;;
4834     s390|s390x)
4835         arch="s390"
4836     ;;
4837     sh4|sh)
4838         arch="sh4"
4839     ;;
4840     sun4*|sparc*)
4841         arch="sparc"
4842     ;;
4843     tilegx|tile-gx)
4844         arch="tilegx"
4845     ;;
4846     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4847         arch="x86"
4848     ;;
4849 esac
4850
4851 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4852 enable $arch
4853
4854 # Add processor-specific flags
4855 if enabled aarch64; then
4856
4857     case $cpu in
4858         armv*)
4859             cpuflags="-march=$cpu"
4860         ;;
4861         *)
4862             cpuflags="-mcpu=$cpu"
4863         ;;
4864     esac
4865
4866 elif enabled alpha; then
4867
4868     cpuflags="-mcpu=$cpu"
4869
4870 elif enabled arm; then
4871
4872     check_arm_arch() {
4873         test_cpp_condition stddef.h \
4874             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4875             $cpuflags
4876     }
4877
4878     probe_arm_arch() {
4879         if   check_arm_arch 4;        then echo armv4
4880         elif check_arm_arch 4T;       then echo armv4t
4881         elif check_arm_arch 5;        then echo armv5
4882         elif check_arm_arch 5E;       then echo armv5e
4883         elif check_arm_arch 5T;       then echo armv5t
4884         elif check_arm_arch 5TE;      then echo armv5te
4885         elif check_arm_arch 5TEJ;     then echo armv5te
4886         elif check_arm_arch 6;        then echo armv6
4887         elif check_arm_arch 6J;       then echo armv6j
4888         elif check_arm_arch 6K;       then echo armv6k
4889         elif check_arm_arch 6Z;       then echo armv6z
4890         elif check_arm_arch 6KZ;      then echo armv6zk
4891         elif check_arm_arch 6ZK;      then echo armv6zk
4892         elif check_arm_arch 6T2;      then echo armv6t2
4893         elif check_arm_arch 7;        then echo armv7
4894         elif check_arm_arch 7A  7_A;  then echo armv7-a
4895         elif check_arm_arch 7S;       then echo armv7-a
4896         elif check_arm_arch 7R  7_R;  then echo armv7-r
4897         elif check_arm_arch 7M  7_M;  then echo armv7-m
4898         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4899         elif check_arm_arch 8A  8_A;  then echo armv8-a
4900         fi
4901     }
4902
4903     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4904
4905     case $cpu in
4906         armv*)
4907             cpuflags="-march=$cpu"
4908             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4909         ;;
4910         *)
4911             cpuflags="-mcpu=$cpu"
4912             case $cpu in
4913                 cortex-a*)                               subarch=armv7a  ;;
4914                 cortex-r*)                               subarch=armv7r  ;;
4915                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4916                 arm11*)                                  subarch=armv6   ;;
4917                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4918                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4919                 *)                             subarch=$(probe_arm_arch) ;;
4920             esac
4921         ;;
4922     esac
4923
4924     case "$subarch" in
4925         armv5t*)    enable fast_clz                ;;
4926         armv[6-8]*)
4927             enable fast_clz
4928             disabled fast_unaligned || enable fast_unaligned
4929             ;;
4930     esac
4931
4932 elif enabled avr32; then
4933
4934     case $cpu in
4935         ap7[02]0[0-2])
4936             subarch="avr32_ap"
4937             cpuflags="-mpart=$cpu"
4938         ;;
4939         ap)
4940             subarch="avr32_ap"
4941             cpuflags="-march=$cpu"
4942         ;;
4943         uc3[ab]*)
4944             subarch="avr32_uc"
4945             cpuflags="-mcpu=$cpu"
4946         ;;
4947         uc)
4948             subarch="avr32_uc"
4949             cpuflags="-march=$cpu"
4950         ;;
4951     esac
4952
4953 elif enabled bfin; then
4954
4955     cpuflags="-mcpu=$cpu"
4956
4957 elif enabled mips; then
4958
4959     cpuflags="-march=$cpu"
4960
4961     if [ "$cpu" != "generic" ]; then
4962         disable mips32r2
4963         disable mips32r5
4964         disable mips64r2
4965         disable mips32r6
4966         disable mips64r6
4967         disable loongson2
4968         disable loongson3
4969
4970         case $cpu in
4971             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4972                 enable mips32r2
4973                 disable msa
4974             ;;
4975             p5600|i6400|p6600)
4976                 disable mipsdsp
4977                 disable mipsdspr2
4978             ;;
4979             loongson*)
4980                 enable loongson2
4981                 enable loongson3
4982                 enable local_aligned
4983                 enable simd_align_16
4984                 enable fast_64bit
4985                 enable fast_clz
4986                 enable fast_cmov
4987                 enable fast_unaligned
4988                 disable aligned_stack
4989                 disable mipsdsp
4990                 disable mipsdspr2
4991                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4992                 if [ $cc == gcc ]; then
4993                     gcc_version=$(gcc -dumpversion)
4994                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4995                         expensive_optimization_flag=""
4996                     else
4997                         expensive_optimization_flag="-fno-expensive-optimizations"
4998                     fi
4999                 fi
5000                 case $cpu in
5001                     loongson3*)
5002                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
5003                     ;;
5004                     loongson2e)
5005                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
5006                     ;;
5007                     loongson2f)
5008                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
5009                     ;;
5010                 esac
5011             ;;
5012             *)
5013                 # Unknown CPU. Disable everything.
5014                 warn "unknown CPU. Disabling all MIPS optimizations."
5015                 disable mipsfpu
5016                 disable mipsdsp
5017                 disable mipsdspr2
5018                 disable msa
5019                 disable mmi
5020             ;;
5021         esac
5022
5023         case $cpu in
5024             24kc)
5025                 disable mipsfpu
5026                 disable mipsdsp
5027                 disable mipsdspr2
5028             ;;
5029             24kf*)
5030                 disable mipsdsp
5031                 disable mipsdspr2
5032             ;;
5033             24kec|34kc|1004kc)
5034                 disable mipsfpu
5035                 disable mipsdspr2
5036             ;;
5037             24kef*|34kf*|1004kf*)
5038                 disable mipsdspr2
5039             ;;
5040             74kc)
5041                 disable mipsfpu
5042             ;;
5043             p5600)
5044                 enable mips32r5
5045                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
5046             ;;
5047             i6400)
5048                 enable mips64r6
5049                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5050             ;;
5051             p6600)
5052                 enable mips64r6
5053                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5054             ;;
5055         esac
5056     else
5057         # We do not disable anything. Is up to the user to disable the unwanted features.
5058         warn 'generic cpu selected'
5059     fi
5060
5061 elif enabled ppc; then
5062
5063     disable ldbrx
5064
5065     case $(tolower $cpu) in
5066         601|ppc601|powerpc601)
5067             cpuflags="-mcpu=601"
5068             disable altivec
5069         ;;
5070         603*|ppc603*|powerpc603*)
5071             cpuflags="-mcpu=603"
5072             disable altivec
5073         ;;
5074         604*|ppc604*|powerpc604*)
5075             cpuflags="-mcpu=604"
5076             disable altivec
5077         ;;
5078         g3|75*|ppc75*|powerpc75*)
5079             cpuflags="-mcpu=750"
5080             disable altivec
5081         ;;
5082         g4|745*|ppc745*|powerpc745*)
5083             cpuflags="-mcpu=7450"
5084             disable vsx
5085         ;;
5086         74*|ppc74*|powerpc74*)
5087             cpuflags="-mcpu=7400"
5088             disable vsx
5089         ;;
5090         g5|970|ppc970|powerpc970)
5091             cpuflags="-mcpu=970"
5092             disable vsx
5093         ;;
5094         power[3-6]*)
5095             cpuflags="-mcpu=$cpu"
5096             disable vsx
5097         ;;
5098         power[7-8]*)
5099             cpuflags="-mcpu=$cpu"
5100         ;;
5101         cell)
5102             cpuflags="-mcpu=cell"
5103             enable ldbrx
5104             disable vsx
5105         ;;
5106         e500mc)
5107             cpuflags="-mcpu=e500mc"
5108             disable altivec
5109         ;;
5110         e500v2)
5111             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5112             disable altivec
5113             disable dcbzl
5114         ;;
5115         e500)
5116             cpuflags="-mcpu=8540 -mhard-float"
5117             disable altivec
5118             disable dcbzl
5119         ;;
5120     esac
5121
5122 elif enabled sparc; then
5123
5124     case $cpu in
5125         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5126             cpuflags="-mcpu=$cpu"
5127         ;;
5128         ultrasparc*|niagara[234])
5129             cpuflags="-mcpu=$cpu"
5130         ;;
5131     esac
5132
5133 elif enabled x86; then
5134
5135     case $cpu in
5136         i[345]86|pentium)
5137             cpuflags="-march=$cpu"
5138             disable i686
5139             disable mmx
5140         ;;
5141         # targets that do NOT support nopl and conditional mov (cmov)
5142         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5143             cpuflags="-march=$cpu"
5144             disable i686
5145         ;;
5146         # targets that do support nopl and conditional mov (cmov)
5147         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5148         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5149         |amdfam10|barcelona|b[dt]ver*|znver*)
5150             cpuflags="-march=$cpu"
5151             enable i686
5152             enable fast_cmov
5153         ;;
5154         # targets that do support conditional mov but on which it's slow
5155         pentium4|pentium4m|prescott|nocona)
5156             cpuflags="-march=$cpu"
5157             enable i686
5158             disable fast_cmov
5159         ;;
5160     esac
5161
5162 fi
5163
5164 if [ "$cpu" != generic ]; then
5165     add_cflags  $cpuflags
5166     add_asflags $cpuflags
5167     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5168 fi
5169
5170 # compiler sanity check
5171 test_exec <<EOF
5172 int main(void){ return 0; }
5173 EOF
5174 if test "$?" != 0; then
5175     echo "$cc is unable to create an executable file."
5176     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5177         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5178         echo "Only do this if you know what cross compiling means."
5179     fi
5180     die "C compiler test failed."
5181 fi
5182
5183 add_cppflags -D_ISOC99_SOURCE
5184 add_cxxflags -D__STDC_CONSTANT_MACROS
5185 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5186
5187 # some compilers silently accept -std=c11, so we also need to check that the
5188 # version macro is defined properly
5189 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5190     add_cflags -std=c11 ||
5191     check_cflags -std=c99
5192
5193 check_cppflags -D_FILE_OFFSET_BITS=64
5194 check_cppflags -D_LARGEFILE_SOURCE
5195
5196 add_host_cppflags -D_ISOC99_SOURCE
5197 check_host_cflags -std=c99
5198 check_host_cflags -Wall
5199 check_host_cflags $host_cflags_speed
5200
5201 check_64bit(){
5202     arch32=$1
5203     arch64=$2
5204     expr=${3:-'sizeof(void *) > 4'}
5205     test_code cc "" "int test[2*($expr) - 1]" &&
5206         subarch=$arch64 || subarch=$arch32
5207     enable $subarch
5208 }
5209
5210 case "$arch" in
5211     aarch64|alpha|ia64)
5212         enabled shared && enable_weak pic
5213     ;;
5214     mips)
5215         check_64bit mips mips64 '_MIPS_SIM > 1'
5216         enabled shared && enable_weak pic
5217     ;;
5218     parisc)
5219         check_64bit parisc parisc64
5220         enabled shared && enable_weak pic
5221     ;;
5222     ppc)
5223         check_64bit ppc ppc64
5224         enabled shared && enable_weak pic
5225     ;;
5226     s390)
5227         check_64bit s390 s390x
5228         enabled shared && enable_weak pic
5229     ;;
5230     sparc)
5231         check_64bit sparc sparc64
5232         enabled shared && enable_weak pic
5233     ;;
5234     x86)
5235         check_64bit x86_32 x86_64
5236         # Treat x32 as x64 for now. Note it also needs pic if shared
5237         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5238             subarch=x86_64 && enable x86_64 && disable x86_32
5239         if enabled x86_64; then
5240             enabled shared && enable_weak pic
5241             objformat=elf64
5242         fi
5243     ;;
5244 esac
5245
5246 # OS specific
5247 case $target_os in
5248     aix)
5249         SHFLAGS=-shared
5250         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5251         enabled shared && add_ldflags -Wl,-brtl
5252         arflags='-Xany -r -c'
5253         striptype=""
5254         ;;
5255     android)
5256         disable symver
5257         enable section_data_rel_ro
5258         add_cflags -fPIE
5259         add_ldexeflags -fPIE -pie
5260         SLIB_INSTALL_NAME='$(SLIBNAME)'
5261         SLIB_INSTALL_LINKS=
5262         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5263         ;;
5264     haiku)
5265         prefix_default="/boot/common"
5266         network_extralibs="-lnetwork"
5267         host_extralibs=
5268         ;;
5269     sunos)
5270         SHFLAGS='-shared -Wl,-h,$$(@F)'
5271         enabled x86 && append SHFLAGS -mimpure-text
5272         network_extralibs="-lsocket -lnsl"
5273         add_cppflags -D__EXTENSIONS__
5274         # When using suncc to build, the Solaris linker will mark
5275         # an executable with each instruction set encountered by
5276         # the Solaris assembler.  As our libraries contain their own
5277         # guards for processor-specific code, instead suppress
5278         # generation of the HWCAPS ELF section on Solaris x86 only.
5279         enabled_all suncc x86 &&
5280             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5281             add_ldflags -Wl,-M,mapfile
5282         nm_default='nm -P -g'
5283         striptype=""
5284         version_script='-M'
5285         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5286         ;;
5287     netbsd)
5288         disable symver
5289         oss_indev_extralibs="-lossaudio"
5290         oss_outdev_extralibs="-lossaudio"
5291         enabled gcc || check_ldflags -Wl,-zmuldefs
5292         ;;
5293     openbsd|bitrig)
5294         disable symver
5295         striptype=""
5296         SHFLAGS='-shared'
5297         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5298         SLIB_INSTALL_LINKS=
5299         oss_indev_extralibs="-lossaudio"
5300         oss_outdev_extralibs="-lossaudio"
5301         ;;
5302     dragonfly)
5303         disable symver
5304         ;;
5305     freebsd)
5306         ;;
5307     bsd/os)
5308         add_extralibs -lpoll -lgnugetopt
5309         strip="strip -d"
5310         ;;
5311     darwin)
5312         enabled ppc && add_asflags -force_cpusubtype_ALL
5313         install_name_dir_default='$(SHLIBDIR)'
5314         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5315         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5316         strip="${strip} -x"
5317         add_ldflags -Wl,-dynamic,-search_paths_first
5318         check_cflags -Werror=partial-availability
5319         SLIBSUF=".dylib"
5320         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5321         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5322         enabled x86_64 && objformat="macho64" || objformat="macho32"
5323         enabled_any pic shared x86_64 ||
5324             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5325         check_headers dispatch/dispatch.h &&
5326             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5327         if test -n "$sysroot"; then
5328             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5329             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5330         fi
5331         version_script='-exported_symbols_list'
5332         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5333         ;;
5334     msys*)
5335         die "Native MSYS builds are discouraged, please use the MINGW environment."
5336         ;;
5337     mingw32*|mingw64*)
5338         target_os=mingw32
5339         LIBTARGET=i386
5340         if enabled x86_64; then
5341             LIBTARGET="i386:x86-64"
5342         elif enabled arm; then
5343             LIBTARGET="arm"
5344         elif enabled aarch64; then
5345             LIBTARGET="arm64"
5346         fi
5347         if enabled shared; then
5348             # Cannot build both shared and static libs when using dllimport.
5349             disable static
5350         fi
5351         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5352         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5353         shlibdir_default="$bindir_default"
5354         SLIBPREF=""
5355         SLIBSUF=".dll"
5356         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5357         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5358         if test_cmd lib.exe -list; then
5359             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5360             if enabled x86_64; then
5361                 LIBTARGET=x64
5362             fi
5363         else
5364             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5365         fi
5366         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5367         SLIB_INSTALL_LINKS=
5368         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5369         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5370         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5371         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5372         enabled x86_64 && objformat="win64" || objformat="win32"
5373         dlltool="${cross_prefix}dlltool"
5374         ranlib=:
5375         enable dos_paths
5376         check_ldflags -Wl,--nxcompat,--dynamicbase
5377         # Lets work around some stupidity in binutils.
5378         # ld will strip relocations from executables even though we need them
5379         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5380         # however ld then forgets what the entry point should be (oops) so we
5381         # have to manually (re)set it.
5382         if enabled x86_32; then
5383             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5384         elif enabled x86_64; then
5385             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5386             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5387             # Set image base >4GB for extra entropy with HEASLR
5388             add_ldexeflags -Wl,--image-base,0x140000000
5389             append SHFLAGS -Wl,--image-base,0x180000000
5390         fi
5391         ;;
5392     win32|win64)
5393         disable symver
5394         if enabled shared; then
5395             # Link to the import library instead of the normal static library
5396             # for shared libs.
5397             LD_LIB='%.lib'
5398             # Cannot build both shared and static libs with MSVC or icl.
5399             disable static
5400         fi
5401         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5402         shlibdir_default="$bindir_default"
5403         SLIBPREF=""
5404         SLIBSUF=".dll"
5405         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5406         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5407         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5408         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5409         SLIB_INSTALL_LINKS=
5410         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5411         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5412         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5413         enabled x86_64 && objformat="win64" || objformat="win32"
5414         ranlib=:
5415         enable dos_paths
5416         ;;
5417     cygwin*)
5418         target_os=cygwin
5419         shlibdir_default="$bindir_default"
5420         SLIBPREF="cyg"
5421         SLIBSUF=".dll"
5422         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5423         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5424         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5425         SLIB_INSTALL_LINKS=
5426         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5427         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5428         enabled x86_64 && objformat="win64" || objformat="win32"
5429         enable dos_paths
5430         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5431         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5432         ;;
5433     *-dos|freedos|opendos)
5434         network_extralibs="-lsocket"
5435         objformat="coff"
5436         enable dos_paths
5437         ;;
5438     linux)
5439         enable section_data_rel_ro
5440         enabled_any arm aarch64 && enable_weak linux_perf
5441         ;;
5442     irix*)
5443         target_os=irix
5444         ranlib="echo ignoring ranlib"
5445         ;;
5446     os/2*)
5447         strip="lxlite -CS"
5448         striptype=""
5449         objformat="aout"
5450         add_cppflags -D_GNU_SOURCE
5451         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5452         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5453         LIBSUF="_s.a"
5454         SLIBPREF=""
5455         SLIBSUF=".dll"
5456         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5457         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5458         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5459             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5460             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5461             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5462             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5463         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5464             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5465         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5466         SLIB_INSTALL_LINKS=
5467         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5468         enable dos_paths
5469         enable_weak os2threads
5470         ;;
5471     gnu/kfreebsd)
5472         add_cppflags -D_BSD_SOURCE
5473         ;;
5474     gnu)
5475         ;;
5476     qnx)
5477         add_cppflags -D_QNX_SOURCE
5478         network_extralibs="-lsocket"
5479         ;;
5480     symbian)
5481         SLIBSUF=".dll"
5482         enable dos_paths
5483         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5484         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5485         add_ldflags -Wl,--target1-abs,--no-undefined \
5486                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5487                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5488         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5489                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5490                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5491         ;;
5492     minix)
5493         ;;
5494     none)
5495         ;;
5496     *)
5497         die "Unknown OS '$target_os'."
5498         ;;
5499 esac
5500
5501 # test if creating links works
5502 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5503 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5504 mkdir "$link_dest"
5505 $ln_s "$link_dest" "$link_name"
5506 touch "$link_dest/test_file"
5507 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5508     # create link to source path
5509     [ -e src ] && rm src
5510     $ln_s "$source_path" src
5511     source_link=src
5512 else
5513     # creating directory links doesn't work
5514     # fall back to using the full source path
5515     source_link="$source_path"
5516 fi
5517 # cleanup
5518 rm -r "$link_dest"
5519 rm -r "$link_name"
5520
5521 # determine libc flavour
5522
5523 probe_libc(){
5524     pfx=$1
5525     pfx_no_=${pfx%_}
5526     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5527     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5528         eval ${pfx}libc_type=uclibc
5529         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5530     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5531         eval ${pfx}libc_type=glibc
5532         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5533     # MinGW headers can be installed on Cygwin, so check for newlib first.
5534     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5535         eval ${pfx}libc_type=newlib
5536         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5537     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5538     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5539         eval ${pfx}libc_type=mingw64
5540         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5541             add_compat msvcrt/snprintf.o
5542             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5543         fi
5544         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5545         eval test \$${pfx_no_}cc_type = "gcc" &&
5546             add_${pfx}cppflags -D__printf__=__gnu_printf__
5547         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5548             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5549         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5550     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5551          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5552         eval ${pfx}libc_type=mingw32
5553         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5554             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5555             die "ERROR: MinGW32 runtime version must be >= 3.15."
5556         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5557         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5558             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5559         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5560             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5561         eval test \$${pfx_no_}cc_type = "gcc" &&
5562             add_${pfx}cppflags -D__printf__=__gnu_printf__
5563         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5564     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5565         eval ${pfx}libc_type=msvcrt
5566         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5567             if [ "$pfx" = host_ ]; then
5568                 add_host_cppflags -Dsnprintf=_snprintf
5569             else
5570                 add_compat strtod.o strtod=avpriv_strtod
5571                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5572                                              _snprintf=avpriv_snprintf  \
5573                                              vsnprintf=avpriv_vsnprintf
5574             fi
5575         fi
5576         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5577         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5578         # 0x601 by default unless something else is set by the user.
5579         # This can easily lead to us detecting functions only present
5580         # in such new versions and producing binaries requiring windows 7.0.
5581         # Therefore explicitly set the default to Vista unless the user has
5582         # set something else on the command line.
5583         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5584         # family. For these cases, configure is free to use any functions
5585         # found in the SDK headers by default. (Alternatively, we could force
5586         # _WIN32_WINNT to 0x0602 in that case.)
5587         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5588             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5589 #ifdef WINAPI_FAMILY
5590 #include <winapifamily.h>
5591 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5592 #error not desktop
5593 #endif
5594 #endif
5595 EOF
5596         if [ "$pfx" = "" ]; then
5597             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5598             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5599         fi
5600     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5601         eval ${pfx}libc_type=klibc
5602     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5603         eval ${pfx}libc_type=bionic
5604     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5605         eval ${pfx}libc_type=solaris
5606         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5607     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5608         eval ${pfx}libc_type=djgpp
5609         add_cppflags -U__STRICT_ANSI__
5610         add_cflags "-include $source_path/compat/djgpp/math.h"
5611         add_compat djgpp/math.o
5612     fi
5613     test_${pfx}cc <<EOF
5614 #include <time.h>
5615 void *v = localtime_r;
5616 EOF
5617 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5618 #include <time.h>
5619 void *v = localtime_r;
5620 EOF
5621
5622     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5623 }
5624
5625 probe_libc
5626 probe_libc host_
5627
5628 # hacks for compiler/libc/os combinations
5629
5630 case $libc_type in
5631     bionic)
5632         add_compat strtod.o strtod=avpriv_strtod
5633         ;;
5634 esac
5635
5636 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5637     add_cppflags '-I\$(SRC_PATH)/compat/float'
5638
5639 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5640
5641 set_default libdir
5642 : ${shlibdir_default:="$libdir"}
5643 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5644
5645 set_default $PATHS_LIST
5646 set_default nm
5647
5648 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5649
5650 enable_weak_pic() {
5651     disabled pic && return
5652     enable pic
5653     add_cppflags -DPIC
5654     case "$target_os" in
5655     mingw*|cygwin*|win*)
5656         ;;
5657     *)
5658         add_cflags -fPIC
5659         add_asflags -fPIC
5660         ;;
5661     esac
5662 }
5663
5664 enabled pic && enable_weak_pic
5665
5666 test_cc <<EOF || die "Symbol mangling check failed."
5667 int ff_extern;
5668 EOF
5669 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5670 extern_prefix=${sym%%ff_extern*}
5671
5672 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5673
5674 for restrict_keyword in restrict __restrict__ __restrict ""; do
5675     test_code cc "" "char * $restrict_keyword p" && break
5676 done
5677
5678 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5679
5680 # The global variable ensures the bits appear unchanged in the object file.
5681 test_cc <<EOF || die "endian test failed"
5682 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5683 EOF
5684 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5685
5686 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5687
5688 if ! enabled ppc64 || enabled bigendian; then
5689     disable vsx
5690 fi
5691
5692 check_gas() {
5693     log "check_gas using '$as' as AS"
5694     # :vararg is used on aarch64, arm and ppc altivec
5695     check_as vararg "
5696 .macro m n, y:vararg=0
5697 \n: .int \y
5698 .endm
5699 m x" || return 1
5700     # .altmacro is only used in arm asm
5701     ! enabled arm || check_as gnu_as ".altmacro"
5702 }
5703
5704 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5705     nogas=:
5706     enabled_any arm aarch64 && nogas=die
5707     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5708     as_noop=-v
5709
5710     case $as_type in
5711         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5712         gcc)  gaspp_as_type=gas ;;
5713         *)    gaspp_as_type=$as_type ;;
5714     esac
5715
5716     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5717
5718     test "${as#*gas-preprocessor.pl}" != "$as" ||
5719     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5720         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5721
5722     if ! check_gas ; then
5723         as=${gas:=$as}
5724         check_gas || \
5725             $nogas "GNU assembler not found, install/update gas-preprocessor"
5726     fi
5727
5728     check_as as_func ".func test
5729                       .endfunc"
5730 fi
5731
5732 check_inline_asm inline_asm_labels '"1:\n"'
5733
5734 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5735
5736 if enabled aarch64; then
5737     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5738     # internal assembler in clang 3.3 does not support this instruction
5739     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5740     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5741
5742     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5743
5744 elif enabled alpha; then
5745
5746     check_cflags -mieee
5747
5748 elif enabled arm; then
5749
5750     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5751     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5752 float func(float a, float b){ return a+b; }
5753 EOF
5754     enabled thumb && check_cflags -mthumb || check_cflags -marm
5755
5756     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5757         :
5758     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5759         :
5760     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5761         case "${cross_prefix:-$cc}" in
5762             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5763             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5764 __asm__ (".eabi_attribute 28, 1");
5765 int main(void) { return 0; }
5766 EOF
5767         esac
5768         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5769     fi
5770
5771     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5772     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5773     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5774     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5775     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5776     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5777     enabled setend  && check_insn setend  'setend be'
5778
5779     [ $target_os = linux ] || [ $target_os = android ] ||
5780         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5781             $ARCH_EXT_LIST_ARM
5782
5783     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5784
5785     check_as as_arch_directive ".arch armv7-a"
5786     check_as as_dn_directive   "ra .dn d0.i16"
5787     check_as as_fpu_directive  ".fpu neon"
5788
5789     # llvm's integrated assembler supports .object_arch from llvm 3.5
5790     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5791         check_as as_object_arch ".object_arch armv4"
5792
5793     # MS armasm fails to assemble our PIC constructs
5794     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5795
5796 elif enabled mips; then
5797
5798     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5799     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5800     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5801
5802     # Enable minimum ISA based on selected options
5803     if enabled mips64; then
5804         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5805         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5806         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5807     else
5808         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5809         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5810         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5811         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5812     fi
5813
5814     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5815     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5816     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5817     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5818     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5819     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5820
5821     if enabled bigendian && enabled msa; then
5822         disable msa
5823     fi
5824
5825 elif enabled parisc; then
5826
5827     if enabled gcc; then
5828         case $($cc -dumpversion) in
5829             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5830         esac
5831     fi
5832
5833 elif enabled ppc; then
5834
5835     enable local_aligned
5836
5837     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5838     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5839     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5840     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5841
5842     if enabled altivec; then
5843         check_cflags -maltivec -mabi=altivec
5844
5845         # check if our compiler supports Motorola AltiVec C API
5846         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5847                                     vector signed int v2 = (vector signed int) { 1 };
5848                                     v1 = vec_add(v1, v2);"
5849
5850         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5851     fi
5852
5853     if enabled vsx; then
5854         check_cflags -mvsx &&
5855         check_cc vsx altivec.h "int v[4] = { 0 };
5856                                 vector signed int v1 = vec_vsx_ld(0, v);"
5857     fi
5858
5859     if enabled power8; then
5860         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5861     fi
5862
5863 elif enabled x86; then
5864
5865     check_builtin rdtsc    intrin.h   "__rdtsc()"
5866     check_builtin mm_empty mmintrin.h "_mm_empty()"
5867
5868     enable local_aligned
5869
5870     # check whether EBP is available on x86
5871     # As 'i' is stored on the stack, this program will crash
5872     # if the base pointer is used to access it because the
5873     # base pointer is cleared in the inline assembly code.
5874     check_exec_crash <<EOF && enable ebp_available
5875 volatile int i=0;
5876 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5877 return i;
5878 EOF
5879
5880     # check whether EBX is available on x86
5881     check_inline_asm ebx_available '""::"b"(0)' &&
5882         check_inline_asm ebx_available '"":::"%ebx"'
5883
5884     # check whether xmm clobbers are supported
5885     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5886
5887     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5888         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5889
5890     # check whether binutils is new enough to compile SSSE3/MMXEXT
5891     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5892     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5893
5894     probe_x86asm(){
5895         x86asmexe_probe=$1
5896         if test_cmd $x86asmexe_probe -v; then
5897             x86asmexe=$x86asmexe_probe
5898             x86asm_type=nasm
5899             x86asm_debug="-g -F dwarf"
5900             X86ASMDEP=
5901             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5902         elif test_cmd $x86asmexe_probe --version; then
5903             x86asmexe=$x86asmexe_probe
5904             x86asm_type=yasm
5905             x86asm_debug="-g dwarf2"
5906             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5907             X86ASM_DEPFLAGS=
5908         fi
5909         check_x86asm x86asm "movbe ecx, [5]"
5910     }
5911
5912     if ! disabled_any asm mmx x86asm; then
5913         disable x86asm
5914         for program in $x86asmexe nasm yasm; do
5915             probe_x86asm $program && break
5916         done
5917         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5918         X86ASMFLAGS="-f $objformat"
5919         enabled pic               && append X86ASMFLAGS "-DPIC"
5920         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5921         case "$objformat" in
5922             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5923         esac
5924
5925         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5926         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5927         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5928         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5929         check_x86asm cpunop          "CPU amdnop"
5930     fi
5931
5932     case "$cpu" in
5933         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5934             disable fast_clz
5935         ;;
5936     esac
5937
5938 fi
5939
5940 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5941
5942 check_ldflags -Wl,--as-needed
5943 check_ldflags -Wl,-z,noexecstack
5944
5945 if ! disabled network; then
5946     check_func getaddrinfo $network_extralibs
5947     check_func inet_aton $network_extralibs
5948
5949     check_type netdb.h "struct addrinfo"
5950     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5951     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5952     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5953     check_type poll.h "struct pollfd"
5954     check_type netinet/sctp.h "struct sctp_event_subscribe"
5955     check_struct "sys/socket.h" "struct msghdr" msg_flags
5956     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5957     check_type netinet/in.h "struct sockaddr_in6"
5958     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5959     check_type "sys/types.h sys/socket.h" socklen_t
5960
5961     # Prefer arpa/inet.h over winsock2
5962     if check_headers arpa/inet.h ; then
5963         check_func closesocket
5964     elif check_headers winsock2.h ; then
5965         check_func_headers winsock2.h closesocket -lws2 &&
5966             network_extralibs="-lws2" ||
5967         { check_func_headers winsock2.h closesocket -lws2_32 &&
5968             network_extralibs="-lws2_32"; } || disable winsock2_h network
5969         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5970
5971         check_type ws2tcpip.h socklen_t
5972         check_type ws2tcpip.h "struct addrinfo"
5973         check_type ws2tcpip.h "struct group_source_req"
5974         check_type ws2tcpip.h "struct ip_mreq_source"
5975         check_type ws2tcpip.h "struct ipv6_mreq"
5976         check_type winsock2.h "struct pollfd"
5977         check_struct winsock2.h "struct sockaddr" sa_len
5978         check_type ws2tcpip.h "struct sockaddr_in6"
5979         check_type ws2tcpip.h "struct sockaddr_storage"
5980     else
5981         disable network
5982     fi
5983 fi
5984
5985 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5986 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5987 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5988 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5989 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5990 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5991 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5992
5993 case "$custom_allocator" in
5994     jemalloc)
5995         # jemalloc by default does not use a prefix
5996         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5997     ;;
5998     tcmalloc)
5999         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
6000         malloc_prefix=tc_
6001     ;;
6002 esac
6003
6004 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
6005 check_func  ${malloc_prefix}memalign            && enable memalign
6006 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
6007
6008 check_func  access
6009 check_func_headers stdlib.h arc4random
6010 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
6011 check_func  fcntl
6012 check_func  fork
6013 check_func  gethrtime
6014 check_func  getopt
6015 check_func  getrusage
6016 check_func  gettimeofday
6017 check_func  isatty
6018 check_func  mkstemp
6019 check_func  mmap
6020 check_func  mprotect
6021 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
6022 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
6023 check_func  sched_getaffinity
6024 check_func  setrlimit
6025 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
6026 check_func  strerror_r
6027 check_func  sysconf
6028 check_func  sysctl
6029 check_func  usleep
6030
6031 check_func_headers conio.h kbhit
6032 check_func_headers io.h setmode
6033 check_func_headers lzo/lzo1x.h lzo1x_999_compress
6034 check_func_headers mach/mach_time.h mach_absolute_time
6035 check_func_headers stdlib.h getenv
6036 check_func_headers sys/stat.h lstat
6037
6038 check_func_headers windows.h GetModuleHandle
6039 check_func_headers windows.h GetProcessAffinityMask
6040 check_func_headers windows.h GetProcessTimes
6041 check_func_headers windows.h GetSystemTimeAsFileTime
6042 check_func_headers windows.h LoadLibrary
6043 check_func_headers windows.h MapViewOfFile
6044 check_func_headers windows.h PeekNamedPipe
6045 check_func_headers windows.h SetConsoleTextAttribute
6046 check_func_headers windows.h SetConsoleCtrlHandler
6047 check_func_headers windows.h SetDllDirectory
6048 check_func_headers windows.h Sleep
6049 check_func_headers windows.h VirtualAlloc
6050 check_func_headers glob.h glob
6051 enabled xlib &&
6052     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
6053
6054 check_headers direct.h
6055 check_headers dirent.h
6056 check_headers dxgidebug.h
6057 check_headers dxva.h
6058 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
6059 check_headers io.h
6060 check_headers linux/perf_event.h
6061 check_headers libcrystalhd/libcrystalhd_if.h
6062 check_headers malloc.h
6063 check_headers net/udplite.h
6064 check_headers poll.h
6065 check_headers sys/param.h
6066 check_headers sys/resource.h
6067 check_headers sys/select.h
6068 check_headers sys/time.h
6069 check_headers sys/un.h
6070 check_headers termios.h
6071 check_headers unistd.h
6072 check_headers valgrind/valgrind.h
6073 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6074 check_headers windows.h
6075 check_headers X11/extensions/XvMClib.h
6076 check_headers asm/types.h
6077
6078 # it seems there are versions of clang in some distros that try to use the
6079 # gcc headers, which explodes for stdatomic
6080 # so we also check that atomics actually work here
6081 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6082
6083 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6084 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6085     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6086 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6087 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6088 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6089
6090 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6091 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6092 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6093
6094 enabled appkit       && check_apple_framework AppKit
6095 enabled audiotoolbox && check_apple_framework AudioToolbox
6096 enabled avfoundation && check_apple_framework AVFoundation
6097 enabled coreimage    && check_apple_framework CoreImage
6098 enabled videotoolbox && check_apple_framework VideoToolbox
6099
6100 check_apple_framework CoreFoundation
6101 check_apple_framework CoreMedia
6102 check_apple_framework CoreVideo
6103
6104 enabled avfoundation && {
6105     disable coregraphics applicationservices
6106     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6107     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6108
6109 enabled videotoolbox && {
6110     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6111     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6112     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6113     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
6114     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
6115     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
6116 }
6117
6118 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6119
6120 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6121 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6122 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6123 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6124 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6125
6126 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6127 check_type "vdpau/vdpau.h" "VdpPictureInfoVP9"
6128
6129 if [ -z "$nvccflags" ]; then
6130     nvccflags=$nvccflags_default
6131 fi
6132
6133 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6134     nvccflags="$nvccflags -m64"
6135 else
6136     nvccflags="$nvccflags -m32"
6137 fi
6138
6139 if enabled cuda_nvcc; then
6140     nvccflags="$nvccflags -ptx"
6141 else
6142     nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
6143     check_nvcc cuda_llvm
6144 fi
6145
6146 if ! disabled ffnvcodec; then
6147     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6148     check_pkg_config ffnvcodec "ffnvcodec >= 9.1.23.1" "$ffnv_hdr_list" "" || \
6149       check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.3 ffnvcodec < 9.1" "$ffnv_hdr_list" "" || \
6150       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.10 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6151       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.11 ffnvcodec < 8.2" "$ffnv_hdr_list" ""
6152 fi
6153
6154 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6155
6156 if ! disabled w32threads && ! enabled pthreads; then
6157     check_func_headers "windows.h process.h" _beginthreadex &&
6158         check_type "windows.h" CONDITION_VARIABLE &&
6159         check_type "windows.h" INIT_ONCE &&
6160         enable w32threads || disable w32threads
6161     if ! enabled w32threads && enabled winrt; then
6162         check_func_headers "windows.h" CreateThread &&
6163             enable w32threads || disable w32threads
6164     fi
6165 fi
6166
6167 # check for some common methods of building with pthread support
6168 # do this before the optional library checks as some of them require pthreads
6169 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6170     if check_lib pthreads pthread.h pthread_join   -pthread &&
6171        check_lib pthreads pthread.h pthread_create -pthread; then
6172         add_cflags -pthread
6173     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6174          check_lib pthreads pthread.h pthread_create -pthreads; then
6175         add_cflags -pthreads
6176     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6177          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6178         add_cflags -ldl -pthread
6179     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6180          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6181         :
6182     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6183          check_lib pthreads pthread.h pthread_create -lpthread; then
6184         :
6185     elif check_func pthread_join && check_func pthread_create; then
6186         enable pthreads
6187     fi
6188     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6189
6190     if enabled pthreads; then
6191         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6192         check_func pthread_cancel $pthreads_extralibs
6193     fi
6194 fi
6195
6196 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6197                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6198 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6199 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6200
6201 # On some systems dynamic loading requires no extra linker flags
6202 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6203
6204 check_lib libm math.h sin -lm
6205
6206 atan2f_args=2
6207 copysign_args=2
6208 hypot_args=2
6209 ldexpf_args=2
6210 powf_args=2
6211
6212 for func in $MATH_FUNCS; do
6213     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6214 done
6215
6216 for func in $COMPLEX_FUNCS; do
6217     eval check_complexfunc $func \${${func}_args:-1}
6218 done
6219
6220 # these are off by default, so fail if requested and not available
6221 enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
6222 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6223 enabled decklink          && { require_headers DeckLinkAPI.h &&
6224                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6225 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6226 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6227 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6228 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6229 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6230 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6231 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6232                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6233                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6234 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6235 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6236 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6237 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6238 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6239 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6240                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6241                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6242 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6243 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6244 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d/dav1d.h" dav1d_version
6245 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6246 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6247 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6248 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6249                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6250                                  warn "using libfdk without pkg-config"; } }
6251 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"
6252 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6253 enabled fontconfig        && enable libfontconfig
6254 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6255 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6256 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6257 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6258                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6259 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6260                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6261                                done || die "ERROR: libgsm not found"; }
6262 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6263 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6264 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6265 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6266 # While it may appear that require is being used as a pkg-config
6267 # fallback for libmfx, it is actually being used to detect a different
6268 # installation route altogether.  If libmfx is installed via the Intel
6269 # Media SDK or Intel Media Server Studio, these don't come with
6270 # pkg-config support.  Instead, users should make sure that the build
6271 # can find the libraries and headers through other means.
6272 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6273                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6274 if enabled libmfx; then
6275    check_cc MFX_CODEC_VP9 "mfx/mfxvp9.h mfx/mfxstructures.h" "MFX_CODEC_VP9"
6276 fi
6277
6278 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6279 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6280 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine ||
6281                                require libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine -lmysofa $zlib_extralibs; }
6282 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6283                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6284                                die "ERROR: libnpp not found"; }
6285 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6286 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6287 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6288                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6289                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6290                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6291 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6292 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6293                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6294 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6295 enabled libopus           && {
6296     enabled libopus_decoder && {
6297         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6298     }
6299     enabled libopus_encoder && {
6300         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6301     }
6302 }
6303 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6304 enabled librav1e          && require_pkg_config librav1e "rav1e >= 0.1.0" rav1e.h rav1e_context_new
6305 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6306 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6307 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6308 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6309 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6310                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6311 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6312 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6313 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6314 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6315 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6316 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6317 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6318 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6319 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6320 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6321                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6322                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6323 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6324 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6325 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6326 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6327 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6328                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6329
6330 enabled libvpx            && {
6331     enabled libvpx_vp8_decoder && {
6332         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6333             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"
6334     }
6335     enabled libvpx_vp8_encoder && {
6336         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6337             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"
6338     }
6339     enabled libvpx_vp9_decoder && {
6340         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6341             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"
6342     }
6343     enabled libvpx_vp9_encoder && {
6344         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6345             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"
6346     }
6347     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6348         die "libvpx enabled but no supported decoders found"
6349     fi
6350 }
6351
6352 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6353 enabled libwebp           && {
6354     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6355     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6356 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6357                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6358                                  warn "using libx264 without pkg-config"; } } &&
6359                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6360                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6361 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6362                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6363 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6364 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6365 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6366 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6367 enabled libzmq            && require_pkg_config libzmq "libzmq >= 4.2.1" zmq.h zmq_ctx_new
6368 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6369                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6370                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6371 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6372 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6373                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6374                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6375                                die "ERROR: mbedTLS not found"; }
6376 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6377 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6378                                { ! enabled cross_compile &&
6379                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6380                                  add_ldflags -L/opt/vc/lib/ &&
6381                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6382                                die "ERROR: mmal not found" &&
6383                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6384 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6385                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6386                                die "ERROR: openal not found"; } &&
6387                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6388                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6389 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6390                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6391                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6392                                die "ERROR: opencl not found"; } &&
6393                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6394                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6395                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6396 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6397                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6398                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6399                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6400                                die "ERROR: opengl not found."
6401                              }
6402 enabled omx_rpi           && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame ||
6403                                { ! enabled cross_compile &&
6404                                  add_cflags -isystem/opt/vc/include/IL &&
6405                                  test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame; } ||
6406                                die "ERROR: OpenMAX IL headers from raspberrypi/firmware not found"; } &&
6407                              enable omx
6408 enabled omx               && require_headers OMX_Core.h
6409 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6410                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6411                                check_lib openssl openssl/ssl.h OPENSSL_init_ssl -lssl -lcrypto ||
6412                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6413                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6414                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6415                                die "ERROR: openssl not found"; }
6416 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6417 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6418                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6419                                { enabled libdrm ||
6420                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6421                              }
6422 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6423
6424
6425 if enabled gcrypt; then
6426     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6427     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6428         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6429         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6430         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6431             die "ERROR: gcrypt not found"
6432         add_cflags $gcrypt_cflags
6433     else
6434         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6435     fi
6436 fi
6437
6438 if enabled sdl2; then
6439     SDL2_CONFIG="${cross_prefix}sdl2-config"
6440     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6441     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6442         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6443         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6444         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6445         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6446         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6447             enable sdl2
6448     fi
6449     if test $target_os = "mingw32"; then
6450         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6451     fi
6452 fi
6453
6454 if enabled decklink; then
6455     case $target_os in
6456         mingw32*|mingw64*|win32|win64)
6457             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6458             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6459             ;;
6460     esac
6461 fi
6462
6463 enabled securetransport &&
6464     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6465     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6466         disable securetransport
6467
6468 enabled securetransport &&
6469     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6470
6471 enabled schannel &&
6472     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6473     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6474     schannel_extralibs="-lsecur32" ||
6475         disable schannel
6476
6477 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6478 enabled makeinfo \
6479     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6480     && enable makeinfo_html || disable makeinfo_html
6481 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6482 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6483 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6484 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6485
6486 # check V4L2 codecs available in the API
6487 if enabled v4l2_m2m; then
6488     check_headers linux/fb.h
6489     check_headers linux/videodev2.h
6490     test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6491     check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6492     check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6493     check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6494     check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6495     check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6496     check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6497     check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6498     check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6499     check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6500     check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6501 fi
6502
6503 check_headers sys/videoio.h
6504 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6505
6506 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6507 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6508 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6509 # w32api 3.12 had it defined wrong
6510 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6511
6512 check_type "dshow.h" IBaseFilter
6513
6514 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6515 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6516     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6517     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6518     check_headers "dev/ic/bt8xx.h"
6519
6520 if check_struct sys/soundcard.h audio_buf_info bytes; then
6521     enable_sanitized sys/soundcard.h
6522 else
6523     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6524     #include <sys/soundcard.h>
6525     audio_buf_info abc;
6526 EOF
6527 fi
6528
6529 enabled alsa && { check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6530                   check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound; }
6531
6532 enabled libjack &&
6533     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6534
6535 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6536
6537 if enabled libcdio; then
6538     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6539     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6540     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6541     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6542     die "ERROR: No usable libcdio/cdparanoia found"
6543 fi
6544
6545 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6546     disable libxcb_shm libxcb_shape libxcb_xfixes
6547
6548 if enabled libxcb; then
6549     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6550     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6551     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6552 fi
6553
6554 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6555
6556 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6557 # the desktop api partition
6558 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6559 #ifdef WINAPI_FAMILY
6560 #include <winapifamily.h>
6561 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6562 #error desktop, not uwp
6563 #else
6564 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6565 #endif
6566 #else
6567 #error no family set
6568 #endif
6569 EOF
6570
6571 enabled vaapi &&
6572     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6573
6574 if enabled vaapi; then
6575     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6576
6577     if enabled xlib; then
6578         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6579     fi
6580
6581     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6582
6583     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6584     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6585     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer" output_hdr_metadata
6586     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6587     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6588     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6589     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6590     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6591 fi
6592
6593 if enabled_all opencl libdrm ; then
6594     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6595         enable opencl_drm_beignet
6596     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6597         enable opencl_drm_arm
6598 fi
6599
6600 if enabled_all opencl vaapi ; then
6601     if enabled opencl_drm_beignet ; then
6602         enable opencl_vaapi_beignet
6603     else
6604         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6605             enable opencl_vaapi_intel_media
6606     fi
6607 fi
6608
6609 if enabled_all opencl dxva2 ; then
6610     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6611         enable opencl_dxva2
6612 fi
6613
6614 if enabled_all opencl d3d11va ; then
6615     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6616         enable opencl_d3d11
6617 fi
6618
6619 enabled vdpau &&
6620     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6621
6622 enabled vdpau &&
6623     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6624
6625 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6626
6627 if enabled x86; then
6628     case $target_os in
6629         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6630             ;;
6631         *)
6632             disable ffnvcodec cuvid nvdec nvenc
6633             ;;
6634     esac
6635 elif enabled ppc64 && ! enabled bigendian; then
6636     case $target_os in
6637         linux)
6638             ;;
6639         *)
6640             disable ffnvcodec cuvid nvdec nvenc
6641             ;;
6642     esac
6643 else
6644     disable ffnvcodec cuvid nvdec nvenc
6645 fi
6646
6647 enabled ffnvcodec && enable cuda
6648
6649 enabled nvenc &&
6650     test_cc -I$source_path <<EOF || disable nvenc
6651 #include <ffnvcodec/nvEncodeAPI.h>
6652 NV_ENCODE_API_FUNCTION_LIST flist;
6653 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6654 int main(void) { return 0; }
6655 EOF
6656
6657 enabled amf &&
6658     check_cpp_condition amf "AMF/core/Version.h" \
6659         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400090000"
6660
6661 # Funny iconv installations are not unusual, so check it after all flags have been set
6662 if enabled libc_iconv; then
6663     check_func_headers iconv.h iconv
6664 elif enabled iconv; then
6665     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6666 fi
6667
6668 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6669
6670 # add some useful compiler flags if supported
6671 check_cflags -Wdeclaration-after-statement
6672 check_cflags -Wall
6673 check_cflags -Wdisabled-optimization
6674 check_cflags -Wpointer-arith
6675 check_cflags -Wredundant-decls
6676 check_cflags -Wwrite-strings
6677 check_cflags -Wtype-limits
6678 check_cflags -Wundef
6679 check_cflags -Wmissing-prototypes
6680 check_cflags -Wno-pointer-to-int-cast
6681 check_cflags -Wstrict-prototypes
6682 check_cflags -Wempty-body
6683
6684 if enabled extra_warnings; then
6685     check_cflags -Wcast-qual
6686     check_cflags -Wextra
6687     check_cflags -Wpedantic
6688 fi
6689
6690 check_disable_warning(){
6691     warning_flag=-W${1#-Wno-}
6692     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6693 }
6694
6695 test_cflags -Werror=unused-command-line-argument &&
6696     append unknown_warning_flags "-Werror=unused-command-line-argument"
6697 test_cflags -Werror=unknown-warning-option &&
6698     append unknown_warning_flags "-Werror=unknown-warning-option"
6699
6700 check_disable_warning -Wno-parentheses
6701 check_disable_warning -Wno-switch
6702 check_disable_warning -Wno-format-zero-length
6703 check_disable_warning -Wno-pointer-sign
6704 check_disable_warning -Wno-unused-const-variable
6705 check_disable_warning -Wno-bool-operation
6706 check_disable_warning -Wno-char-subscripts
6707
6708 check_disable_warning_headers(){
6709     warning_flag=-W${1#-Wno-}
6710     test_cflags $warning_flag && add_cflags_headers $1
6711 }
6712
6713 check_disable_warning_headers -Wno-deprecated-declarations
6714 check_disable_warning_headers -Wno-unused-variable
6715
6716 test_cc <<EOF && enable blocks_extension
6717 void (^block)(void);
6718 EOF
6719
6720 # add some linker flags
6721 check_ldflags -Wl,--warn-common
6722 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6723 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6724 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6725
6726 # add some strip flags
6727 check_stripflags -x
6728
6729 enabled neon_clobber_test &&
6730     check_ldflags -Wl,--wrap,avcodec_open2              \
6731                   -Wl,--wrap,avcodec_decode_audio4      \
6732                   -Wl,--wrap,avcodec_decode_video2      \
6733                   -Wl,--wrap,avcodec_decode_subtitle2   \
6734                   -Wl,--wrap,avcodec_encode_audio2      \
6735                   -Wl,--wrap,avcodec_encode_video2      \
6736                   -Wl,--wrap,avcodec_encode_subtitle    \
6737                   -Wl,--wrap,avcodec_send_packet        \
6738                   -Wl,--wrap,avcodec_receive_packet     \
6739                   -Wl,--wrap,avcodec_send_frame         \
6740                   -Wl,--wrap,avcodec_receive_frame      \
6741                   -Wl,--wrap,swr_convert                \
6742                   -Wl,--wrap,avresample_convert ||
6743     disable neon_clobber_test
6744
6745 enabled xmm_clobber_test &&
6746     check_ldflags -Wl,--wrap,avcodec_open2              \
6747                   -Wl,--wrap,avcodec_decode_audio4      \
6748                   -Wl,--wrap,avcodec_decode_video2      \
6749                   -Wl,--wrap,avcodec_decode_subtitle2   \
6750                   -Wl,--wrap,avcodec_encode_audio2      \
6751                   -Wl,--wrap,avcodec_encode_video2      \
6752                   -Wl,--wrap,avcodec_encode_subtitle    \
6753                   -Wl,--wrap,avcodec_send_packet        \
6754                   -Wl,--wrap,avcodec_receive_packet     \
6755                   -Wl,--wrap,avcodec_send_frame         \
6756                   -Wl,--wrap,avcodec_receive_frame      \
6757                   -Wl,--wrap,swr_convert                \
6758                   -Wl,--wrap,avresample_convert         \
6759                   -Wl,--wrap,sws_scale ||
6760     disable xmm_clobber_test
6761
6762 check_ld "cc" proper_dce <<EOF
6763 extern const int array[512];
6764 static inline int func(void) { return array[0]; }
6765 int main(void) { return 0; }
6766 EOF
6767
6768 if enabled proper_dce; then
6769     echo "X { local: *; };" > $TMPV
6770     if test_ldflags -Wl,${version_script},$TMPV; then
6771         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6772         quotes='""'
6773         test_cc <<EOF && enable symver_asm_label
6774 void ff_foo(void) __asm__ ("av_foo@VERSION");
6775 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6776 EOF
6777         test_cc <<EOF && enable symver_gnu_asm
6778 __asm__(".symver ff_foo,av_foo@VERSION");
6779 void ff_foo(void) {}
6780 EOF
6781     fi
6782 fi
6783
6784 if [ -z "$optflags" ]; then
6785     if enabled small; then
6786         optflags=$cflags_size
6787     elif enabled optimizations; then
6788         optflags=$cflags_speed
6789     else
6790         optflags=$cflags_noopt
6791     fi
6792 fi
6793
6794 check_optflags(){
6795     check_cflags "$@"
6796     enabled lto && check_ldflags "$@"
6797 }
6798
6799 check_optflags $optflags
6800 check_optflags -fno-math-errno
6801 check_optflags -fno-signed-zeros
6802
6803 if enabled lto; then
6804     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6805     check_cflags  -flto
6806     check_ldflags -flto $cpuflags
6807     disable inline_asm_direct_symbol_refs
6808 fi
6809
6810 enabled ftrapv && check_cflags -ftrapv
6811
6812 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6813 int x;
6814 EOF
6815
6816
6817 if enabled icc; then
6818     # Just warnings, no remarks
6819     check_cflags -w1
6820     # -wd: Disable following warnings
6821     # 144, 167, 556: -Wno-pointer-sign
6822     # 188: enumerated type mixed with another type
6823     # 1292: attribute "foo" ignored
6824     # 1419: external declaration in primary source file
6825     # 10006: ignoring unknown option -fno-signed-zeros
6826     # 10148: ignoring unknown option -Wno-parentheses
6827     # 10156: ignoring option '-W'; no argument required
6828     # 13200: No EMMS instruction before call to function
6829     # 13203: No EMMS instruction before return from function
6830     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6831     # 11030: Warning unknown option --as-needed
6832     # 10156: ignoring option '-export'; no argument required
6833     check_ldflags -wd10156,11030
6834     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6835     enable ebp_available
6836     # The test above does not test linking
6837     enabled lto && disable symver_asm_label
6838     if enabled x86_32; then
6839         icc_version=$($cc -dumpversion)
6840         test ${icc_version%%.*} -ge 11 &&
6841             check_cflags -falign-stack=maintain-16-byte ||
6842             disable aligned_stack
6843     fi
6844 elif enabled gcc; then
6845     check_optflags -fno-tree-vectorize
6846     check_cflags -Werror=format-security
6847     check_cflags -Werror=implicit-function-declaration
6848     check_cflags -Werror=missing-prototypes
6849     check_cflags -Werror=return-type
6850     check_cflags -Werror=vla
6851     check_cflags -Wformat
6852     check_cflags -fdiagnostics-color=auto
6853     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6854     if enabled x86_32; then
6855         case $target_os in
6856         *bsd*)
6857             # BSDs don't guarantee a 16 byte aligned stack, but we can
6858             # request GCC to try to maintain 16 byte alignment throughout
6859             # function calls. Library entry points that might call assembly
6860             # functions align the stack. (The parameter means 2^4 bytes.)
6861             check_cflags -mpreferred-stack-boundary=4
6862             ;;
6863         esac
6864     fi
6865 elif enabled llvm_gcc; then
6866     check_cflags -mllvm -stack-alignment=16
6867 elif enabled clang; then
6868     if enabled x86_32; then
6869         # Clang doesn't support maintaining alignment without assuming the
6870         # same alignment in every function. If 16 byte alignment would be
6871         # enabled, one would also have to either add attribute_align_arg on
6872         # every single entry point into the libraries or enable -mstackrealign
6873         # (doing stack realignment in every single function).
6874         case $target_os in
6875         mingw32|win32|*bsd*)
6876             disable aligned_stack
6877             ;;
6878         *)
6879             check_cflags -mllvm -stack-alignment=16
6880             check_cflags -mstack-alignment=16
6881             ;;
6882         esac
6883     else
6884         check_cflags -mllvm -stack-alignment=16
6885         check_cflags -mstack-alignment=16
6886     fi
6887     check_cflags -Qunused-arguments
6888     check_cflags -Werror=implicit-function-declaration
6889     check_cflags -Werror=missing-prototypes
6890     check_cflags -Werror=return-type
6891 elif enabled cparser; then
6892     add_cflags -Wno-missing-variable-declarations
6893     add_cflags -Wno-empty-statement
6894 elif enabled armcc; then
6895     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6896     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6897     # 2523: use of inline assembly is deprecated
6898     add_cflags -W${armcc_opt},--diag_suppress=2523
6899     add_cflags -W${armcc_opt},--diag_suppress=1207
6900     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6901     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6902     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6903     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6904 elif enabled pathscale; then
6905     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6906     disable inline_asm
6907 elif enabled_any msvc icl; then
6908     enabled x86_32 && disable aligned_stack
6909     enabled_all x86_32 debug && add_cflags -Oy-
6910     enabled debug && add_ldflags -debug
6911     enable pragma_deprecated
6912     if enabled icl; then
6913         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6914         # (correctly) on icl 13.x.
6915         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6916             add_cflags -Qansi-alias
6917         # Some inline asm is not compilable in debug
6918         if enabled debug; then
6919             disable ebp_available
6920             disable ebx_available
6921         fi
6922     fi
6923     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6924     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6925     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6926     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6927     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6928     # MSVC 2013 and newer can handle it fine.
6929     # If this declspec fails, force including stdlib.h before the restrict redefinition
6930     # happens in config.h.
6931     if [ $restrict_keyword != restrict ]; then
6932         test_cc <<EOF || add_cflags -FIstdlib.h
6933 __declspec($restrict_keyword) void *foo(int);
6934 EOF
6935     fi
6936     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6937     # Issue has been fixed in MSVC v19.00.24218.
6938     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6939         check_cflags -d2SSAOptimizer-
6940     # enable utf-8 source processing on VS2015 U2 and newer
6941     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6942         add_cflags -utf-8
6943 fi
6944
6945 for pfx in "" host_; do
6946     varname=${pfx%_}cc_type
6947     eval "type=\$$varname"
6948     if [ "$type" = "msvc" ]; then
6949         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6950 static inline int foo(int a) { return a; }
6951 EOF
6952     fi
6953 done
6954
6955 case $as_type in
6956     clang)
6957         add_asflags -Qunused-arguments
6958     ;;
6959 esac
6960
6961 case $ld_type in
6962     clang)
6963         check_ldflags -Qunused-arguments
6964     ;;
6965 esac
6966
6967 enable frame_thread_encoder
6968
6969 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6970
6971 check_deps $CONFIG_LIST       \
6972            $CONFIG_EXTRA      \
6973            $HAVE_LIST         \
6974            $ALL_COMPONENTS    \
6975
6976 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"
6977 enabled avresample && warn "Building with deprecated library libavresample"
6978
6979 case $target_os in
6980 haiku)
6981     disable memalign
6982     disable posix_memalign
6983     ;;
6984 *-dos|freedos|opendos)
6985     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6986         disable memalign
6987     fi
6988     ;;
6989 esac
6990
6991 flatten_extralibs(){
6992     nested_entries=
6993     list_name=$1
6994     eval list=\$${1}
6995     for entry in $list; do
6996         entry_copy=$entry
6997         resolve entry_copy
6998         flat_entries=
6999         for e in $entry_copy; do
7000             case $e in
7001                 *_extralibs) nested_entries="$nested_entries$e ";;
7002                           *) flat_entries="$flat_entries$e ";;
7003             esac
7004         done
7005         eval $entry="\$flat_entries"
7006     done
7007     append $list_name "$nested_entries"
7008
7009     resolve nested_entries
7010     if test -n "$(filter '*_extralibs' $nested_entries)"; then
7011         flatten_extralibs $list_name
7012     fi
7013 }
7014
7015 flatten_extralibs_wrapper(){
7016     list_name=$1
7017     flatten_extralibs $list_name
7018     unique $list_name
7019     resolve $list_name
7020     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
7021     eval printf \''%s'\' \""\$$list_name"\"
7022 }
7023
7024 for linkunit in $LIBRARY_LIST; do
7025     unset current_extralibs
7026     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
7027     for comp in ${components}; do
7028         enabled $comp || continue
7029         comp_extralibs="${comp}_extralibs"
7030         append current_extralibs $comp_extralibs
7031     done
7032     eval prepend ${linkunit}_extralibs $current_extralibs
7033 done
7034
7035 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7036     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
7037 done
7038
7039 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
7040
7041 for thread in $THREADS_LIST; do
7042     if enabled $thread; then
7043         test -n "$thread_type" &&
7044             die "ERROR: Only one thread type must be selected." ||
7045             thread_type="$thread"
7046     fi
7047 done
7048
7049 if disabled stdatomic; then
7050     if enabled atomics_gcc; then
7051         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
7052     elif enabled atomics_win32; then
7053         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
7054     elif enabled atomics_suncc; then
7055         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
7056     elif enabled pthreads; then
7057         add_compat atomics/pthread/stdatomic.o
7058         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
7059     else
7060         enabled threads && die "Threading is enabled, but no atomics are available"
7061         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
7062     fi
7063 fi
7064
7065 # Check if requested libraries were found.
7066 for lib in $AUTODETECT_LIBS; do
7067     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
7068 done
7069
7070 enabled zlib && add_cppflags -DZLIB_CONST
7071
7072 # conditional library dependencies, in any order
7073 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
7074 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
7075 enabled afir_filter         && prepend avfilter_deps "avcodec"
7076 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
7077 enabled aresample_filter    && prepend avfilter_deps "swresample"
7078 enabled atempo_filter       && prepend avfilter_deps "avcodec"
7079 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7080 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7081 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7082 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7083 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7084 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7085 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7086 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7087 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7088 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7089 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7090 enabled pan_filter          && prepend avfilter_deps "swresample"
7091 enabled pp_filter           && prepend avfilter_deps "postproc"
7092 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7093 enabled resample_filter && prepend avfilter_deps "avresample"
7094 enabled sab_filter          && prepend avfilter_deps "swscale"
7095 enabled scale_filter    && prepend avfilter_deps "swscale"
7096 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7097 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7098 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7099 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7100 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7101 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7102 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7103 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7104 enabled spp_filter          && prepend avfilter_deps "avcodec"
7105 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7106 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7107 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7108 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7109
7110 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7111
7112 #FIXME
7113 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7114     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7115
7116 enabled opus_decoder    && prepend avcodec_deps "swresample"
7117
7118 # reorder the items at var $1 to align with the items order at var $2 .
7119 # die if an item at $1 is not at $2 .
7120 reorder_by(){
7121     eval rb_in=\$$1
7122     eval rb_ordered=\$$2
7123
7124     for rb in $rb_in; do
7125         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7126     done
7127
7128     rb_out=
7129     for rb in $rb_ordered; do
7130         is_in $rb $rb_in && rb_out="$rb_out$rb "
7131     done
7132     eval $1=\$rb_out
7133 }
7134
7135 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7136 # within a set of N items, N expansions are enough to expose a cycle.
7137 expand_deps(){
7138     unique ${1}_deps  # required for the early break test.
7139     for dummy in $LIBRARY_LIST; do  # N iteratios
7140         eval deps=\$${1}_deps
7141         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7142         unique ${1}_deps
7143         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7144     done
7145
7146     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7147     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7148 }
7149
7150 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7151 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7152
7153 map 'expand_deps $v' $LIBRARY_LIST
7154
7155 if test "$quiet" != "yes"; then
7156
7157 echo "install prefix            $prefix"
7158 echo "source path               $source_path"
7159 echo "C compiler                $cc"
7160 echo "C library                 $libc_type"
7161 if test "$host_cc" != "$cc"; then
7162     echo "host C compiler           $host_cc"
7163     echo "host C library            $host_libc_type"
7164 fi
7165 echo "ARCH                      $arch ($cpu)"
7166 if test "$build_suffix" != ""; then
7167     echo "build suffix              $build_suffix"
7168 fi
7169 if test "$progs_suffix" != ""; then
7170     echo "progs suffix              $progs_suffix"
7171 fi
7172 if test "$extra_version" != ""; then
7173     echo "version string suffix     $extra_version"
7174 fi
7175 echo "big-endian                ${bigendian-no}"
7176 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7177 if enabled x86; then
7178     echo "standalone assembly       ${x86asm-no}"
7179     echo "x86 assembler             ${x86asmexe}"
7180     echo "MMX enabled               ${mmx-no}"
7181     echo "MMXEXT enabled            ${mmxext-no}"
7182     echo "3DNow! enabled            ${amd3dnow-no}"
7183     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7184     echo "SSE enabled               ${sse-no}"
7185     echo "SSSE3 enabled             ${ssse3-no}"
7186     echo "AESNI enabled             ${aesni-no}"
7187     echo "AVX enabled               ${avx-no}"
7188     echo "AVX2 enabled              ${avx2-no}"
7189     echo "AVX-512 enabled           ${avx512-no}"
7190     echo "XOP enabled               ${xop-no}"
7191     echo "FMA3 enabled              ${fma3-no}"
7192     echo "FMA4 enabled              ${fma4-no}"
7193     echo "i686 features enabled     ${i686-no}"
7194     echo "CMOV is fast              ${fast_cmov-no}"
7195     echo "EBX available             ${ebx_available-no}"
7196     echo "EBP available             ${ebp_available-no}"
7197 fi
7198 if enabled aarch64; then
7199     echo "NEON enabled              ${neon-no}"
7200     echo "VFP enabled               ${vfp-no}"
7201 fi
7202 if enabled arm; then
7203     echo "ARMv5TE enabled           ${armv5te-no}"
7204     echo "ARMv6 enabled             ${armv6-no}"
7205     echo "ARMv6T2 enabled           ${armv6t2-no}"
7206     echo "VFP enabled               ${vfp-no}"
7207     echo "NEON enabled              ${neon-no}"
7208     echo "THUMB enabled             ${thumb-no}"
7209 fi
7210 if enabled mips; then
7211     echo "MIPS FPU enabled          ${mipsfpu-no}"
7212     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7213     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7214     echo "MIPS MSA enabled          ${msa-no}"
7215     echo "MIPS MSA2 enabled         ${msa2-no}"
7216     echo "LOONGSON MMI enabled      ${mmi-no}"
7217 fi
7218 if enabled ppc; then
7219     echo "AltiVec enabled           ${altivec-no}"
7220     echo "VSX enabled               ${vsx-no}"
7221     echo "POWER8 enabled            ${power8-no}"
7222     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7223     echo "dcbzl available           ${dcbzl-no}"
7224 fi
7225 echo "debug symbols             ${debug-no}"
7226 echo "strip symbols             ${stripping-no}"
7227 echo "optimize for size         ${small-no}"
7228 echo "optimizations             ${optimizations-no}"
7229 echo "static                    ${static-no}"
7230 echo "shared                    ${shared-no}"
7231 echo "postprocessing support    ${postproc-no}"
7232 echo "network support           ${network-no}"
7233 echo "threading support         ${thread_type-no}"
7234 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7235 echo "texi2html enabled         ${texi2html-no}"
7236 echo "perl enabled              ${perl-no}"
7237 echo "pod2man enabled           ${pod2man-no}"
7238 echo "makeinfo enabled          ${makeinfo-no}"
7239 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7240 test -n "$random_seed" &&
7241     echo "random seed               ${random_seed}"
7242 echo
7243
7244 echo "External libraries:"
7245 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7246 echo
7247
7248 echo "External libraries providing hardware acceleration:"
7249 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7250 echo
7251
7252 echo "Libraries:"
7253 print_enabled '' $LIBRARY_LIST | print_in_columns
7254 echo
7255
7256 echo "Programs:"
7257 print_enabled '' $PROGRAM_LIST | print_in_columns
7258 echo
7259
7260 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7261     echo "Enabled ${type}s:"
7262     eval list=\$$(toupper $type)_LIST
7263     print_enabled '_*' $list | print_in_columns
7264     echo
7265 done
7266
7267 if test -n "$ignore_tests"; then
7268     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7269     echo "Ignored FATE tests:"
7270     echo $ignore_tests | print_in_columns
7271     echo
7272 fi
7273
7274 echo "License: $license"
7275
7276 fi # test "$quiet" != "yes"
7277
7278 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7279     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7280         if disabled $cfg; then
7281             varname=${cfg}_disable_reason
7282             eval "warn \"Disabled $cfg because \$$varname\""
7283         fi
7284     done
7285 fi
7286
7287 if test -n "$WARNINGS"; then
7288     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7289     enabled fatal_warnings && exit 1
7290 fi
7291
7292 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7293
7294 esc(){
7295     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7296 }
7297
7298 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7299
7300 enabled stripping || strip="echo skipping strip"
7301 enabled stripping || striptype=""
7302
7303 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7304
7305 cat > ffbuild/config.mak <<EOF
7306 # Automatically generated by configure - do not modify!
7307 ifndef FFMPEG_CONFIG_MAK
7308 FFMPEG_CONFIG_MAK=1
7309 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7310 prefix=$prefix
7311 LIBDIR=\$(DESTDIR)$libdir
7312 SHLIBDIR=\$(DESTDIR)$shlibdir
7313 INCDIR=\$(DESTDIR)$incdir
7314 BINDIR=\$(DESTDIR)$bindir
7315 DATADIR=\$(DESTDIR)$datadir
7316 DOCDIR=\$(DESTDIR)$docdir
7317 MANDIR=\$(DESTDIR)$mandir
7318 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7319 INSTALL_NAME_DIR=$install_name_dir
7320 SRC_PATH=$source_path
7321 SRC_LINK=$source_link
7322 ifndef MAIN_MAKEFILE
7323 SRC_PATH:=\$(SRC_PATH:.%=..%)
7324 endif
7325 CC_IDENT=$cc_ident
7326 ARCH=$arch
7327 INTRINSICS=$intrinsics
7328 EXTERN_PREFIX=$extern_prefix
7329 CC=$cc
7330 CXX=$cxx
7331 AS=$as
7332 OBJCC=$objcc
7333 LD=$ld
7334 DEPCC=$dep_cc
7335 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7336 DEPAS=$as
7337 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7338 X86ASM=$x86asmexe
7339 DEPX86ASM=$x86asmexe
7340 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7341 AR=$ar
7342 ARFLAGS=$arflags
7343 AR_O=$ar_o
7344 AR_CMD=$ar
7345 NM_CMD=$nm
7346 RANLIB=$ranlib
7347 STRIP=$strip
7348 STRIPTYPE=$striptype
7349 NVCC=$nvcc
7350 CP=cp -p
7351 LN_S=$ln_s
7352 CPPFLAGS=$CPPFLAGS
7353 CFLAGS=$CFLAGS
7354 CXXFLAGS=$CXXFLAGS
7355 OBJCFLAGS=$OBJCFLAGS
7356 ASFLAGS=$ASFLAGS
7357 NVCCFLAGS=$nvccflags
7358 AS_C=$AS_C
7359 AS_O=$AS_O
7360 OBJCC_C=$OBJCC_C
7361 OBJCC_E=$OBJCC_E
7362 OBJCC_O=$OBJCC_O
7363 CC_C=$CC_C
7364 CC_E=$CC_E
7365 CC_O=$CC_O
7366 CXX_C=$CXX_C
7367 CXX_O=$CXX_O
7368 NVCC_C=$NVCC_C
7369 NVCC_O=$NVCC_O
7370 LD_O=$LD_O
7371 X86ASM_O=$X86ASM_O
7372 LD_LIB=$LD_LIB
7373 LD_PATH=$LD_PATH
7374 DLLTOOL=$dlltool
7375 WINDRES=$windres
7376 DEPWINDRES=$dep_cc
7377 DOXYGEN=$doxygen
7378 LDFLAGS=$LDFLAGS
7379 LDEXEFLAGS=$LDEXEFLAGS
7380 LDSOFLAGS=$LDSOFLAGS
7381 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7382 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7383 X86ASMFLAGS=$X86ASMFLAGS
7384 BUILDSUF=$build_suffix
7385 PROGSSUF=$progs_suffix
7386 FULLNAME=$FULLNAME
7387 LIBPREF=$LIBPREF
7388 LIBSUF=$LIBSUF
7389 LIBNAME=$LIBNAME
7390 SLIBPREF=$SLIBPREF
7391 SLIBSUF=$SLIBSUF
7392 EXESUF=$EXESUF
7393 EXTRA_VERSION=$extra_version
7394 CCDEP=$CCDEP
7395 CXXDEP=$CXXDEP
7396 CCDEP_FLAGS=$CCDEP_FLAGS
7397 ASDEP=$ASDEP
7398 ASDEP_FLAGS=$ASDEP_FLAGS
7399 X86ASMDEP=$X86ASMDEP
7400 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7401 CC_DEPFLAGS=$CC_DEPFLAGS
7402 AS_DEPFLAGS=$AS_DEPFLAGS
7403 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7404 HOSTCC=$host_cc
7405 HOSTLD=$host_ld
7406 HOSTCFLAGS=$host_cflags
7407 HOSTCPPFLAGS=$host_cppflags
7408 HOSTEXESUF=$HOSTEXESUF
7409 HOSTLDFLAGS=$host_ldflags
7410 HOSTEXTRALIBS=$host_extralibs
7411 DEPHOSTCC=$host_cc
7412 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7413 HOSTCCDEP=$HOSTCCDEP
7414 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7415 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7416 HOSTCC_C=$HOSTCC_C
7417 HOSTCC_O=$HOSTCC_O
7418 HOSTLD_O=$HOSTLD_O
7419 TARGET_EXEC=$target_exec $target_exec_args
7420 TARGET_PATH=$target_path
7421 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7422 CFLAGS-ffplay=${sdl2_cflags}
7423 CFLAGS_HEADERS=$CFLAGS_HEADERS
7424 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7425 EXTRALIBS=$extralibs
7426 COMPAT_OBJS=$compat_objs
7427 INSTALL=$install
7428 LIBTARGET=${LIBTARGET}
7429 SLIBNAME=${SLIBNAME}
7430 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7431 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7432 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7433 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7434 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7435 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7436 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7437 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7438 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7439 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7440 NOREDZONE_FLAGS=$noredzone_flags
7441 LIBFUZZER_PATH=$libfuzzer_path
7442 IGNORE_TESTS=$ignore_tests
7443 EOF
7444
7445 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7446
7447 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7448     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7449 done
7450
7451 cat > $TMPH <<EOF
7452 /* Automatically generated by configure - do not modify! */
7453 #ifndef FFMPEG_CONFIG_H
7454 #define FFMPEG_CONFIG_H
7455 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7456 #define FFMPEG_LICENSE "$(c_escape $license)"
7457 #define CONFIG_THIS_YEAR 2019
7458 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7459 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7460 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7461 #define av_restrict $restrict_keyword
7462 #define EXTERN_PREFIX "${extern_prefix}"
7463 #define EXTERN_ASM ${extern_prefix}
7464 #define BUILDSUF "$build_suffix"
7465 #define SLIBSUF "$SLIBSUF"
7466 #define HAVE_MMX2 HAVE_MMXEXT
7467 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7468 EOF
7469
7470 test -n "$assert_level" &&
7471     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7472
7473 test -n "$malloc_prefix" &&
7474     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7475
7476 if enabled x86asm; then
7477     append config_files $TMPASM
7478     cat > $TMPASM <<EOF
7479 ; Automatically generated by configure - do not modify!
7480 EOF
7481 fi
7482
7483 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7484
7485
7486 mkdir -p doc
7487 mkdir -p tests
7488 mkdir -p tests/api
7489 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7490
7491 print_config ARCH_   "$config_files" $ARCH_LIST
7492 print_config HAVE_   "$config_files" $HAVE_LIST
7493 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7494                                      $CONFIG_EXTRA      \
7495                                      $ALL_COMPONENTS    \
7496
7497 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7498 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7499
7500 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7501 cp_if_changed $TMPH config.h
7502 touch ffbuild/.config
7503
7504 enabled x86asm && cp_if_changed $TMPASM config.asm
7505
7506 cat > $TMPH <<EOF
7507 /* Generated by ffmpeg configure */
7508 #ifndef AVUTIL_AVCONFIG_H
7509 #define AVUTIL_AVCONFIG_H
7510 EOF
7511
7512 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7513
7514 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7515
7516 cp_if_changed $TMPH libavutil/avconfig.h
7517
7518 # full_filter_name_foo=vf_foo
7519 # full_filter_name_bar=asrc_bar
7520 # ...
7521 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7522
7523 # generate the lists of enabled components
7524 print_enabled_components(){
7525     file=$1
7526     struct_name=$2
7527     name=$3
7528     shift 3
7529     echo "static const $struct_name * const $name[] = {" > $TMPH
7530     for c in $*; do
7531         if enabled $c; then
7532             case $name in
7533                 filter_list)
7534                     eval c=\$full_filter_name_${c%_filter}
7535                 ;;
7536                 indev_list)
7537                     c=${c%_indev}_demuxer
7538                 ;;
7539                 outdev_list)
7540                     c=${c%_outdev}_muxer
7541                 ;;
7542             esac
7543             printf "    &ff_%s,\n" $c >> $TMPH
7544         fi
7545     done
7546     if [ "$name" = "filter_list" ]; then
7547         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7548             printf "    &ff_%s,\n" $c >> $TMPH
7549         done
7550     fi
7551     echo "    NULL };" >> $TMPH
7552     cp_if_changed $TMPH $file
7553 }
7554
7555 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7556 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7557 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7558 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7559 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7560 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7561 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7562 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7563 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7564
7565 # Settings for pkg-config files
7566
7567 cat > $TMPH <<EOF
7568 # Automatically generated by configure - do not modify!
7569 shared=$shared
7570 build_suffix=$build_suffix
7571 prefix=$prefix
7572 libdir=$libdir
7573 incdir=$incdir
7574 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7575 source_path=${source_path}
7576 LIBPREF=${LIBPREF}
7577 LIBSUF=${LIBSUF}
7578 extralibs_avutil="$avutil_extralibs"
7579 extralibs_avcodec="$avcodec_extralibs"
7580 extralibs_avformat="$avformat_extralibs"
7581 extralibs_avdevice="$avdevice_extralibs"
7582 extralibs_avfilter="$avfilter_extralibs"
7583 extralibs_avresample="$avresample_extralibs"
7584 extralibs_postproc="$postproc_extralibs"
7585 extralibs_swscale="$swscale_extralibs"
7586 extralibs_swresample="$swresample_extralibs"
7587 EOF
7588
7589 for lib in $LIBRARY_LIST; do
7590     lib_deps="$(eval echo \$${lib}_deps)"
7591     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7592 done
7593
7594 cp_if_changed $TMPH ffbuild/config.sh