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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --quiet                  Suppress showing informative output
  67   --list-decoders          show all available decoders
  68   --list-encoders          show all available encoders
  69   --list-hwaccels          show all available hardware accelerators
  70   --list-demuxers          show all available demuxers
  71   --list-muxers            show all available muxers
  72   --list-parsers           show all available parsers
  73   --list-protocols         show all available protocols
  74   --list-bsfs              show all available bitstream filters
  75   --list-indevs            show all available input devices
  76   --list-outdevs           show all available output devices
  77   --list-filters           show all available filters
  78
  79 Standard options:
  80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
  81   --disable-logging        do not log configure debug information
  82   --fatal-warnings         fail if any configure warning is generated
  83   --prefix=PREFIX          install in PREFIX [$prefix_default]
  84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  87   --libdir=DIR             install libs in DIR [PREFIX/lib]
  88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
  89   --incdir=DIR             install includes in DIR [PREFIX/include]
  90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  92   --enable-rpath           use rpath to allow installing libraries in paths
  93                            not part of the dynamic linker search path
  94                            use rpath when linking programs (USE WITH CARE)
  95   --install-name-dir=DIR   Darwin directory name for installed targets
  96
  97 Licensing options:
  98   --enable-gpl             allow use of GPL code, the resulting libs
  99                            and binaries will be under GPL [no]
 100   --enable-version3        upgrade (L)GPL to version 3 [no]
 101   --enable-nonfree         allow use of nonfree code, the resulting libs
 102                            and binaries will be unredistributable [no]
 103
 104 Configuration options:
 105   --disable-static         do not build static libraries [no]
 106   --enable-shared          build shared libraries [no]
 107   --enable-small           optimize for size instead of speed
 108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
 109   --enable-gray            enable full grayscale support (slower color)
 110   --disable-swscale-alpha  disable alpha channel support in swscale
 111   --disable-all            disable building components, libraries and programs
 112   --disable-autodetect     disable automatically detected external libraries [no]
 113
 114 Program options:
 115   --disable-programs       do not build command line programs
 116   --disable-ffmpeg         disable ffmpeg build
 117   --disable-ffplay         disable ffplay build
 118   --disable-ffprobe        disable ffprobe build
 119
 120 Documentation options:
 121   --disable-doc            do not build documentation
 122   --disable-htmlpages      do not build HTML documentation pages
 123   --disable-manpages       do not build man documentation pages
 124   --disable-podpages       do not build POD documentation pages
 125   --disable-txtpages       do not build text documentation pages
 126
 127 Component options:
 128   --disable-avdevice       disable libavdevice build
 129   --disable-avcodec        disable libavcodec build
 130   --disable-avformat       disable libavformat build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build (deprecated) [no]
 136   --disable-pthreads       disable pthreads [autodetect]
 137   --disable-w32threads     disable Win32 threads [autodetect]
 138   --disable-os2threads     disable OS/2 threads [autodetect]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Individual component options:
 152   --disable-everything     disable all components listed below
 153   --disable-encoder=NAME   disable encoder NAME
 154   --enable-encoder=NAME    enable encoder NAME
 155   --disable-encoders       disable all encoders
 156   --disable-decoder=NAME   disable decoder NAME
 157   --enable-decoder=NAME    enable decoder NAME
 158   --disable-decoders       disable all decoders
 159   --disable-hwaccel=NAME   disable hwaccel NAME
 160   --enable-hwaccel=NAME    enable hwaccel NAME
 161   --disable-hwaccels       disable all hwaccels
 162   --disable-muxer=NAME     disable muxer NAME
 163   --enable-muxer=NAME      enable muxer NAME
 164   --disable-muxers         disable all muxers
 165   --disable-demuxer=NAME   disable demuxer NAME
 166   --enable-demuxer=NAME    enable demuxer NAME
 167   --disable-demuxers       disable all demuxers
 168   --enable-parser=NAME     enable parser NAME
 169   --disable-parser=NAME    disable parser NAME
 170   --disable-parsers        disable all parsers
 171   --enable-bsf=NAME        enable bitstream filter NAME
 172   --disable-bsf=NAME       disable bitstream filter NAME
 173   --disable-bsfs           disable all bitstream filters
 174   --enable-protocol=NAME   enable protocol NAME
 175   --disable-protocol=NAME  disable protocol NAME
 176   --disable-protocols      disable all protocols
 177   --enable-indev=NAME      enable input device NAME
 178   --disable-indev=NAME     disable input device NAME
 179   --disable-indevs         disable input devices
 180   --enable-outdev=NAME     enable output device NAME
 181   --disable-outdev=NAME    disable output device NAME
 182   --disable-outdevs        disable output devices
 183   --disable-devices        disable all devices
 184   --enable-filter=NAME     enable filter NAME
 185   --disable-filter=NAME    disable filter NAME
 186   --disable-filters        disable all filters
 187
 188 External library support:
 189
 190   Using any of the following switches will allow FFmpeg to link to the
 191   corresponding external library. All the components depending on that library
 192   will become enabled, if all their other dependencies are met and they are not
 193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 194   libwavpack and allow the libwavpack encoder to be built, unless it is
 195   specifically disabled with --disable-encoder=libwavpack.
 196
 197   Note that only the system libraries are auto-detected. All the other external
 198   libraries must be explicitly enabled.
 199
 200   Also note that the following help text describes the purpose of the libraries
 201   themselves, not all their features will necessarily be usable by FFmpeg.
 202
 203   --disable-alsa           disable ALSA support [autodetect]
 204   --disable-appkit         disable Apple AppKit framework [autodetect]
 205   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
 206   --enable-avisynth        enable reading of AviSynth script files [no]
 207   --disable-bzlib          disable bzlib [autodetect]
 208   --disable-coreimage      disable Apple CoreImage framework [autodetect]
 209   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
 210   --enable-frei0r          enable frei0r video filtering [no]
 211   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
 212                            if openssl, librtmp or gmp is not used [no]
 213   --enable-gmp             enable gmp, needed for rtmp(t)e support
 214                            if openssl or librtmp is not used [no]
 215   --enable-gnutls          enable gnutls, needed for https support
 216                            if openssl, libtls or mbedtls is not used [no]
 217   --disable-iconv          disable iconv [autodetect]
 218   --enable-jni             enable JNI support [no]
 219   --enable-ladspa          enable LADSPA audio filtering [no]
 220   --enable-libaom          enable AV1 video encoding/decoding via libaom [no]
 221   --enable-libaribb24      enable ARIB text and caption decoding via libaribb24 [no]
 222   --enable-libass          enable libass subtitles rendering,
 223                            needed for subtitles and ass filter [no]
 224   --enable-libbluray       enable BluRay reading using libbluray [no]
 225   --enable-libbs2b         enable bs2b DSP library [no]
 226   --enable-libcaca         enable textual display using libcaca [no]
 227   --enable-libcelt         enable CELT decoding via libcelt [no]
 228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 229   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
 230   --enable-libdav1d        enable AV1 decoding via libdav1d [no]
 231   --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
 232   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 233                            and libraw1394 [no]
 234   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 235   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 236   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
 237   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 238   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 239   --enable-libgme          enable Game Music Emu via libgme [no]
 240   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 241   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 242   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 243   --enable-libjack         enable JACK audio sound server [no]
 244   --enable-libklvanc       enable Kernel Labs VANC processing [no]
 245   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 246   --enable-liblensfun      enable lensfun lens correction [no]
 247   --enable-libmodplug      enable ModPlug via libmodplug [no]
 248   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 249   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 250   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 251   --enable-libopencv       enable video filtering via libopencv [no]
 252   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 253   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 254   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
 255   --enable-libopus         enable Opus de/encoding via libopus [no]
 256   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 257   --enable-librsvg         enable SVG rasterization via librsvg [no]
 258   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 259   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 260   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 261   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 262   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 263   --enable-libsoxr         enable Include libsoxr resampling [no]
 264   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 265   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
 266   --enable-libssh          enable SFTP protocol via libssh [no]
 267   --enable-libtensorflow   enable TensorFlow as a DNN module backend
 268                            for DNN based filters like sr [no]
 269   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 270   --enable-libtheora       enable Theora encoding via libtheora [no]
 271   --enable-libtls          enable LibreSSL (via libtls), needed for https support
 272                            if openssl, gnutls or mbedtls is not used [no]
 273   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 274   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 275   --enable-libvidstab      enable video stabilization using vid.stab [no]
 276   --enable-libvmaf         enable vmaf filter via libvmaf [no]
 277   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 278   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 279                            native implementation exists [no]
 280   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 281   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 282   --enable-libwebp         enable WebP encoding via libwebp [no]
 283   --enable-libx264         enable H.264 encoding via x264 [no]
 284   --enable-libx265         enable HEVC encoding via x265 [no]
 285   --enable-libxavs         enable AVS encoding via xavs [no]
 286   --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
 287   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 288   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 289   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 290   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 291   --enable-libxvid         enable Xvid encoding via xvidcore,
 292                            native MPEG-4/Xvid encoder exists [no]
 293   --enable-libxml2         enable XML parsing using the C library libxml2, needed
 294                            for dash demuxing support [no]
 295   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 296   --enable-libzmq          enable message passing via libzmq [no]
 297   --enable-libzvbi         enable teletext support via libzvbi [no]
 298   --enable-lv2             enable LV2 audio filtering [no]
 299   --disable-lzma           disable lzma [autodetect]
 300   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 301   --enable-mbedtls         enable mbedTLS, needed for https support
 302                            if openssl, gnutls or libtls is not used [no]
 303   --enable-mediacodec      enable Android MediaCodec support [no]
 304   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
 305   --enable-openal          enable OpenAL 1.1 capture support [no]
 306   --enable-opencl          enable OpenCL processing [no]
 307   --enable-opengl          enable OpenGL rendering [no]
 308   --enable-openssl         enable openssl, needed for https support
 309                            if gnutls, libtls or mbedtls is not used [no]
 310   --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
 311   --disable-sndio          disable sndio support [autodetect]
 312   --disable-schannel       disable SChannel SSP, needed for TLS support on
 313                            Windows if openssl and gnutls are not used [autodetect]
 314   --disable-sdl2           disable sdl2 [autodetect]
 315   --disable-securetransport disable Secure Transport, needed for TLS support
 316                            on OSX if openssl and gnutls are not used [autodetect]
 317   --enable-vapoursynth     enable VapourSynth demuxer [no]
 318   --disable-xlib           disable xlib [autodetect]
 319   --disable-zlib           disable zlib [autodetect]
 320
 321   The following libraries provide various hardware acceleration features:
 322   --disable-amf            disable AMF video encoding code [autodetect]
 323   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
 324   --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
 325   --disable-cuda-llvm      disable CUDA compilation using clang [autodetect]
 326   --disable-cuvid          disable Nvidia CUVID support [autodetect]
 327   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
 328   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
 329   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
 330   --enable-libdrm          enable DRM code (Linux) [no]
 331   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
 332   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
 333   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
 334   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
 335   --disable-nvenc          disable Nvidia video encoding code [autodetect]
 336   --enable-omx             enable OpenMAX IL code [no]
 337   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
 338   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
 339   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
 340   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
 341   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
 342   --disable-videotoolbox   disable VideoToolbox code [autodetect]
 343
 344 Toolchain options:
 345   --arch=ARCH              select architecture [$arch]
 346   --cpu=CPU                select the minimum required CPU (affects
 347                            instruction selection, may crash on older CPUs)
 348   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 349   --progs-suffix=SUFFIX    program name suffix []
 350   --enable-cross-compile   assume a cross-compiler is used
 351   --sysroot=PATH           root of cross-build tree
 352   --sysinclude=PATH        location of cross-build system headers
 353   --target-os=OS           compiler targets OS [$target_os]
 354   --target-exec=CMD        command to run executables on target
 355   --target-path=DIR        path to view of build directory on target
 356   --target-samples=DIR     path to samples directory on target
 357   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 358   --toolchain=NAME         set tool defaults according to NAME
 359                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
 360                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
 361                            valgrind-massif, valgrind-memcheck,
 362                            msvc, icl, gcov, llvm-cov, hardened)
 363   --nm=NM                  use nm tool NM [$nm_default]
 364   --ar=AR                  use archive tool AR [$ar_default]
 365   --as=AS                  use assembler AS [$as_default]
 366   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
 367   --strip=STRIP            use strip tool STRIP [$strip_default]
 368   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 369   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
 370   --cc=CC                  use C compiler CC [$cc_default]
 371   --cxx=CXX                use C compiler CXX [$cxx_default]
 372   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 373   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 374   --nvcc=NVCC              use Nvidia CUDA compiler NVCC or clang [$nvcc_default]
 375   --ld=LD                  use linker LD [$ld_default]
 376   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 377   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 378   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 379   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 380   --host-cc=HOSTCC         use host C compiler HOSTCC
 381   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 382   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 383   --host-ld=HOSTLD         use host linker HOSTLD
 384   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 385   --host-extralibs=HLIBS   use libs HLIBS when linking for host
 386   --host-os=OS             compiler host OS [$target_os]
 387   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 388   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 389   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 390   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 391   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 392   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
 393   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 394   --extra-version=STRING   version string suffix []
 395   --optflags=OPTFLAGS      override optimization-related compiler flags
 396   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
 397   --build-suffix=SUFFIX    library name suffix []
 398   --enable-pic             build position-independent code
 399   --enable-thumb           compile for Thumb instruction set
 400   --enable-lto             use link-time optimization
 401   --env="ENV=override"     override the environment variables
 402
 403 Advanced options (experts only):
 404   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 405   --custom-allocator=NAME  use a supported custom allocator
 406   --disable-symver         disable symbol versioning
 407   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 408   --disable-safe-bitstream-reader
 409                            disable buffer boundary checking in bitreaders
 410                            (faster, but may crash)
 411   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 412
 413 Optimization options (experts only):
 414   --disable-asm            disable all assembly optimizations
 415   --disable-altivec        disable AltiVec optimizations
 416   --disable-vsx            disable VSX optimizations
 417   --disable-power8         disable POWER8 optimizations
 418   --disable-amd3dnow       disable 3DNow! optimizations
 419   --disable-amd3dnowext    disable 3DNow! extended optimizations
 420   --disable-mmx            disable MMX optimizations
 421   --disable-mmxext         disable MMXEXT optimizations
 422   --disable-sse            disable SSE optimizations
 423   --disable-sse2           disable SSE2 optimizations
 424   --disable-sse3           disable SSE3 optimizations
 425   --disable-ssse3          disable SSSE3 optimizations
 426   --disable-sse4           disable SSE4 optimizations
 427   --disable-sse42          disable SSE4.2 optimizations
 428   --disable-avx            disable AVX optimizations
 429   --disable-xop            disable XOP optimizations
 430   --disable-fma3           disable FMA3 optimizations
 431   --disable-fma4           disable FMA4 optimizations
 432   --disable-avx2           disable AVX2 optimizations
 433   --disable-avx512         disable AVX-512 optimizations
 434   --disable-aesni          disable AESNI optimizations
 435   --disable-armv5te        disable armv5te optimizations
 436   --disable-armv6          disable armv6 optimizations
 437   --disable-armv6t2        disable armv6t2 optimizations
 438   --disable-vfp            disable VFP optimizations
 439   --disable-neon           disable NEON optimizations
 440   --disable-inline-asm     disable use of inline assembly
 441   --disable-x86asm         disable use of standalone x86 assembly
 442   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
 443   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 444   --disable-msa            disable MSA optimizations
 445   --disable-msa2           disable MSA2 optimizations
 446   --disable-mipsfpu        disable floating point MIPS optimizations
 447   --disable-mmi            disable Loongson SIMD optimizations
 448   --disable-fast-unaligned consider unaligned accesses slow
 449
 450 Developer options (useful when working on FFmpeg itself):
 451   --disable-debug          disable debugging symbols
 452   --enable-debug=LEVEL     set the debug level [$debuglevel]
 453   --disable-optimizations  disable compiler optimizations
 454   --enable-extra-warnings  enable more compiler warnings
 455   --disable-stripping      disable stripping of executables and shared libraries
 456   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 457                            2 causes a slowdown at runtime.
 458   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 459   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 460                            leaks and errors, using the specified valgrind binary.
 461                            Cannot be combined with --target-exec
 462   --enable-ftrapv          Trap arithmetic overflows
 463   --samples=PATH           location of test samples for FATE, if not set use
 464                            \$FATE_SAMPLES at make invocation time.
 465   --enable-neon-clobber-test check NEON registers for clobbering (should be
 466                            used only for debugging purposes)
 467   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 468                            should be used only for debugging purposes)
 469   --enable-random          randomly enable/disable components
 470   --disable-random
 471   --enable-random=LIST     randomly enable/disable specific components or
 472   --disable-random=LIST    component groups. LIST is a comma-separated list
 473                            of NAME[:PROB] entries where NAME is a component
 474                            (group) and PROB the probability associated with
 475                            NAME (default 0.5).
 476   --random-seed=VALUE      seed value for --enable/disable-random
 477   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 478                            (only applies to --disable-optimizations builds)
 479   --enable-ossfuzz         Enable building fuzzer tool
 480   --libfuzzer=PATH         path to libfuzzer
 481   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 482                            in the name) of tests whose result is ignored
 483   --enable-linux-perf      enable Linux Performance Monitor API
 484
 485 NOTE: Object files are built at the place where configure is launched.
 486 EOF
 487   exit 0
 488 }
 489
 490 if test -t 1 && which tput >/dev/null 2>&1; then
 491     ncolors=$(tput colors)
 492     if test -n "$ncolors" && test $ncolors -ge 8; then
 493         bold_color=$(tput bold)
 494         warn_color=$(tput setaf 3)
 495         error_color=$(tput setaf 1)
 496         reset_color=$(tput sgr0)
 497     fi
 498     # 72 used instead of 80 since that's the default of pr
 499     ncols=$(tput cols)
 500 fi
 501 : ${ncols:=72}
 502
 503 log(){
 504     echo "$@" >> $logfile
 505 }
 506
 507 log_file(){
 508     log BEGIN "$1"
 509     log_file_i=1
 510     while IFS= read -r log_file_line; do
 511         printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
 512         log_file_i=$(($log_file_i+1))
 513     done < "$1" >> "$logfile"
 514     log END "$1"
 515 }
 516
 517 warn(){
 518     log "WARNING: $*"
 519     WARNINGS="${WARNINGS}WARNING: $*\n"
 520 }
 521
 522 die(){
 523     log "$@"
 524     echo "$error_color$bold_color$@$reset_color"
 525     cat <<EOF
 526
 527 If you think configure made a mistake, make sure you are using the latest
 528 version from Git.  If the latest version fails, report the problem to the
 529 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 530 EOF
 531     if disabled logging; then
 532         cat <<EOF
 533 Rerun configure with logging enabled (do not use --disable-logging), and
 534 include the log this produces with your report.
 535 EOF
 536     else
 537         cat <<EOF
 538 Include the log file "$logfile" produced by configure as this will help
 539 solve the problem.
 540 EOF
 541     fi
 542     exit 1
 543 }
 544
 545 # Avoid locale weirdness, besides we really just want to translate ASCII.
 546 toupper(){
 547     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 548 }
 549
 550 tolower(){
 551     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 552 }
 553
 554 c_escape(){
 555     echo "$*" | sed 's/["\\]/\\\0/g'
 556 }
 557
 558 sh_quote(){
 559     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 560     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 561     echo "$v"
 562 }
 563
 564 cleanws(){
 565     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 566 }
 567
 568 filter(){
 569     pat=$1
 570     shift
 571     for v; do
 572         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
 573     done
 574 }
 575
 576 filter_out(){
 577     pat=$1
 578     shift
 579     for v; do
 580         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
 581     done
 582 }
 583
 584 map(){
 585     m=$1
 586     shift
 587     for v; do eval $m; done
 588 }
 589
 590 add_suffix(){
 591     suffix=$1
 592     shift
 593     for v; do echo ${v}${suffix}; done
 594 }
 595
 596 remove_suffix(){
 597     suffix=$1
 598     shift
 599     for v; do echo ${v%$suffix}; done
 600 }
 601
 602 set_all(){
 603     value=$1
 604     shift
 605     for var in $*; do
 606         eval $var=$value
 607     done
 608 }
 609
 610 set_weak(){
 611     value=$1
 612     shift
 613     for var; do
 614         eval : \${$var:=$value}
 615     done
 616 }
 617
 618 sanitize_var_name(){
 619     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 620 }
 621
 622 set_sanitized(){
 623     var=$1
 624     shift
 625     eval $(sanitize_var_name "$var")='$*'
 626 }
 627
 628 get_sanitized(){
 629     eval echo \$$(sanitize_var_name "$1")
 630 }
 631
 632 pushvar(){
 633     for pvar in $*; do
 634         eval level=\${${pvar}_level:=0}
 635         eval ${pvar}_${level}="\$$pvar"
 636         eval ${pvar}_level=$(($level+1))
 637     done
 638 }
 639
 640 popvar(){
 641     for pvar in $*; do
 642         eval level=\${${pvar}_level:-0}
 643         test $level = 0 && continue
 644         eval level=$(($level-1))
 645         eval $pvar="\${${pvar}_${level}}"
 646         eval ${pvar}_level=$level
 647         eval unset ${pvar}_${level}
 648     done
 649 }
 650
 651 request(){
 652     for var in $*; do
 653         eval ${var}_requested=yes
 654         eval $var=
 655     done
 656 }
 657
 658 warn_if_gets_disabled(){
 659     for var in $*; do
 660         WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
 661     done
 662 }
 663
 664 enable(){
 665     set_all yes $*
 666 }
 667
 668 disable(){
 669     set_all no $*
 670 }
 671
 672 disable_with_reason(){
 673     disable $1
 674     eval "${1}_disable_reason=\"$2\""
 675     if requested $1; then
 676         die "ERROR: $1 requested, but $2"
 677     fi
 678 }
 679
 680 enable_weak(){
 681     set_weak yes $*
 682 }
 683
 684 disable_weak(){
 685     set_weak no $*
 686 }
 687
 688 enable_sanitized(){
 689     for var; do
 690         enable $(sanitize_var_name $var)
 691     done
 692 }
 693
 694 disable_sanitized(){
 695     for var; do
 696         disable $(sanitize_var_name $var)
 697     done
 698 }
 699
 700 do_enable_deep(){
 701     for var; do
 702         enabled $var && continue
 703         set -- $var
 704         eval enable_deep \$${var}_select
 705         var=$1
 706         eval enable_deep_weak \$${var}_suggest
 707     done
 708 }
 709
 710 enable_deep(){
 711     do_enable_deep $*
 712     enable $*
 713 }
 714
 715 enable_deep_weak(){
 716     for var; do
 717         disabled $var && continue
 718         set -- $var
 719         do_enable_deep $var
 720         var=$1
 721         enable_weak $var
 722     done
 723 }
 724
 725 requested(){
 726     test "${1#!}" = "$1" && op="=" || op="!="
 727     eval test "x\$${1#!}_requested" $op "xyes"
 728 }
 729
 730 enabled(){
 731     test "${1#!}" = "$1" && op="=" || op="!="
 732     eval test "x\$${1#!}" $op "xyes"
 733 }
 734
 735 disabled(){
 736     test "${1#!}" = "$1" && op="=" || op="!="
 737     eval test "x\$${1#!}" $op "xno"
 738 }
 739
 740 enabled_all(){
 741     for opt; do
 742         enabled $opt || return 1
 743     done
 744 }
 745
 746 disabled_all(){
 747     for opt; do
 748         disabled $opt || return 1
 749     done
 750 }
 751
 752 enabled_any(){
 753     for opt; do
 754         enabled $opt && return 0
 755     done
 756 }
 757
 758 disabled_any(){
 759     for opt; do
 760         disabled $opt && return 0
 761     done
 762     return 1
 763 }
 764
 765 set_default(){
 766     for opt; do
 767         eval : \${$opt:=\$${opt}_default}
 768     done
 769 }
 770
 771 is_in(){
 772     value=$1
 773     shift
 774     for var in $*; do
 775         [ $var = $value ] && return 0
 776     done
 777     return 1
 778 }
 779
 780 # The cfg loop is very hot (several thousands iterations), and in bash also
 781 # potentialy quite slow. Try to abort the iterations early, preferably without
 782 # calling functions. 70%+ of the time cfg is already done or without deps.
 783 check_deps(){
 784     for cfg; do
 785         eval [ x\$${cfg}_checking = xdone ] && continue
 786         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
 787
 788         eval "
 789         dep_all=\$${cfg}_deps
 790         dep_any=\$${cfg}_deps_any
 791         dep_con=\$${cfg}_conflict
 792         dep_sel=\$${cfg}_select
 793         dep_sgs=\$${cfg}_suggest
 794         dep_ifa=\$${cfg}_if
 795         dep_ifn=\$${cfg}_if_any
 796         "
 797
 798         # most of the time here $cfg has no deps - avoid costly no-op work
 799         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
 800             eval ${cfg}_checking=inprogress
 801
 802             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
 803             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
 804             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
 805
 806             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 807             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 808             enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
 809             enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
 810             disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
 811             disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
 812
 813             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
 814
 815             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
 816                 # filter out library deps, these do not belong in extralibs
 817                 is_in $dep $LIBRARY_LIST && continue
 818                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
 819             done
 820         fi
 821
 822         eval ${cfg}_checking=done
 823     done
 824 }
 825
 826 print_config(){
 827     pfx=$1
 828     files=$2
 829     shift 2
 830     map 'eval echo "$v \${$v:-no}"' "$@" |
 831     awk "BEGIN { split(\"$files\", files) }
 832         {
 833             c = \"$pfx\" toupper(\$1);
 834             v = \$2;
 835             sub(/yes/, 1, v);
 836             sub(/no/,  0, v);
 837             for (f in files) {
 838                 file = files[f];
 839                 if (file ~ /\\.h\$/) {
 840                     printf(\"#define %s %d\\n\", c, v) >>file;
 841                 } else if (file ~ /\\.asm\$/) {
 842                     printf(\"%%define %s %d\\n\", c, v) >>file;
 843                 } else if (file ~ /\\.mak\$/) {
 844                     n = -v ? \"\" : \"!\";
 845                     printf(\"%s%s=yes\\n\", n, c) >>file;
 846                 } else if (file ~ /\\.texi\$/) {
 847                     pre = -v ? \"\" : \"@c \";
 848                     yesno = \$2;
 849                     c2 = tolower(c);
 850                     gsub(/_/, \"-\", c2);
 851                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 852                 }
 853             }
 854         }"
 855 }
 856
 857 print_enabled(){
 858     suf=$1
 859     shift
 860     for v; do
 861         enabled $v && printf "%s\n" ${v%$suf}
 862     done
 863 }
 864
 865 append(){
 866     var=$1
 867     shift
 868     eval "$var=\"\$$var $*\""
 869 }
 870
 871 prepend(){
 872     var=$1
 873     shift
 874     eval "$var=\"$* \$$var\""
 875 }
 876
 877 reverse () {
 878     eval '
 879         reverse_out=
 880         for v in $'$1'; do
 881             reverse_out="$v $reverse_out"
 882         done
 883         '$1'=$reverse_out
 884     '
 885 }
 886
 887 # keeps the last occurence of each non-unique item
 888 unique(){
 889     unique_out=
 890     eval unique_in=\$$1
 891     reverse unique_in
 892     for v in $unique_in; do
 893         # " $unique_out" +space such that every item is surrounded with spaces
 894         case " $unique_out" in *" $v "*) continue; esac  # already in list
 895         unique_out="$unique_out$v "
 896     done
 897     reverse unique_out
 898     eval $1=\$unique_out
 899 }
 900
 901 resolve(){
 902     resolve_out=
 903     eval resolve_in=\$$1
 904     for v in $resolve_in; do
 905         eval 'resolve_out="$resolve_out$'$v' "'
 906     done
 907     eval $1=\$resolve_out
 908 }
 909
 910 add_cppflags(){
 911     append CPPFLAGS "$@"
 912 }
 913
 914 add_cflags(){
 915     append CFLAGS $($cflags_filter "$@")
 916 }
 917
 918 add_cflags_headers(){
 919     append CFLAGS_HEADERS $($cflags_filter "$@")
 920 }
 921
 922 add_cxxflags(){
 923     append CXXFLAGS $($cflags_filter "$@")
 924 }
 925
 926 add_objcflags(){
 927     append OBJCFLAGS $($objcflags_filter "$@")
 928 }
 929
 930 add_asflags(){
 931     append ASFLAGS $($asflags_filter "$@")
 932 }
 933
 934 add_ldflags(){
 935     append LDFLAGS $($ldflags_filter "$@")
 936 }
 937
 938 add_ldexeflags(){
 939     append LDEXEFLAGS $($ldflags_filter "$@")
 940 }
 941
 942 add_ldsoflags(){
 943     append LDSOFLAGS $($ldflags_filter "$@")
 944 }
 945
 946 add_extralibs(){
 947     prepend extralibs $($ldflags_filter "$@")
 948 }
 949
 950 add_stripflags(){
 951     append ASMSTRIPFLAGS "$@"
 952 }
 953
 954 add_host_cppflags(){
 955     append host_cppflags "$@"
 956 }
 957
 958 add_host_cflags(){
 959     append host_cflags $($host_cflags_filter "$@")
 960 }
 961
 962 add_host_ldflags(){
 963     append host_ldflags $($host_ldflags_filter "$@")
 964 }
 965
 966 add_compat(){
 967     append compat_objs $1
 968     shift
 969     map 'add_cppflags -D$v' "$@"
 970 }
 971
 972 test_cmd(){
 973     log "$@"
 974     "$@" >> $logfile 2>&1
 975 }
 976
 977 test_stat(){
 978     log test_stat "$@"
 979     stat "$1" >> $logfile 2>&1
 980 }
 981
 982 cc_e(){
 983     eval printf '%s\\n' $CC_E
 984 }
 985
 986 cc_o(){
 987     eval printf '%s\\n' $CC_O
 988 }
 989
 990 as_o(){
 991     eval printf '%s\\n' $AS_O
 992 }
 993
 994 x86asm_o(){
 995     eval printf '%s\\n' $X86ASM_O
 996 }
 997
 998 ld_o(){
 999     eval printf '%s\\n' $LD_O
1000 }
1001
1002 hostcc_e(){
1003     eval printf '%s\\n' $HOSTCC_E
1004 }
1005
1006 hostcc_o(){
1007     eval printf '%s\\n' $HOSTCC_O
1008 }
1009
1010 nvcc_o(){
1011     eval printf '%s\\n' $NVCC_O
1012 }
1013
1014 test_cc(){
1015     log test_cc "$@"
1016     cat > $TMPC
1017     log_file $TMPC
1018     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
1019 }
1020
1021 test_cxx(){
1022     log test_cxx "$@"
1023     cat > $TMPCPP
1024     log_file $TMPCPP
1025     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1026 }
1027
1028 test_objcc(){
1029     log test_objcc "$@"
1030     cat > $TMPM
1031     log_file $TMPM
1032     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1033 }
1034
1035 test_nvcc(){
1036     log test_nvcc "$@"
1037     cat > $TMPCU
1038     log_file $TMPCU
1039     tmpcu_=$TMPCU
1040     tmpo_=$TMPO
1041     [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
1042     test_cmd $nvcc $nvccflags "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
1043 }
1044
1045 check_nvcc() {
1046     log check_nvcc "$@"
1047     name=$1
1048     shift 1
1049     disabled $name && return
1050     disable $name
1051     test_nvcc "$@" <<EOF && enable $name
1052 extern "C" {
1053     __global__ void hello(unsigned char *data) {}
1054 }
1055 EOF
1056 }
1057
1058 test_cpp(){
1059     log test_cpp "$@"
1060     cat > $TMPC
1061     log_file $TMPC
1062     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1063 }
1064
1065 test_as(){
1066     log test_as "$@"
1067     cat > $TMPS
1068     log_file $TMPS
1069     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1070 }
1071
1072 test_x86asm(){
1073     log test_x86asm "$@"
1074     echo "$1" > $TMPASM
1075     log_file $TMPASM
1076     shift
1077     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1078 }
1079
1080 check_cmd(){
1081     log check_cmd "$@"
1082     cmd=$1
1083     disabled $cmd && return
1084     disable $cmd
1085     test_cmd $@ && enable $cmd
1086 }
1087
1088 check_as(){
1089     log check_as "$@"
1090     name=$1
1091     code=$2
1092     shift 2
1093     disable $name
1094     test_as $@ <<EOF && enable $name
1095 $code
1096 EOF
1097 }
1098
1099 check_inline_asm(){
1100     log check_inline_asm "$@"
1101     name="$1"
1102     code="$2"
1103     shift 2
1104     disable $name
1105     test_cc "$@" <<EOF && enable $name
1106 void foo(void){ __asm__ volatile($code); }
1107 EOF
1108 }
1109
1110 check_inline_asm_flags(){
1111     log check_inline_asm_flags "$@"
1112     name="$1"
1113     code="$2"
1114     flags=''
1115     shift 2
1116     while [ "$1" != "" ]; do
1117       append flags $1
1118       shift
1119     done;
1120     disable $name
1121     cat > $TMPC <<EOF
1122 void foo(void){ __asm__ volatile($code); }
1123 EOF
1124     log_file $TMPC
1125     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1126     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1127 }
1128
1129 check_insn(){
1130     log check_insn "$@"
1131     check_inline_asm ${1}_inline "\"$2\""
1132     check_as ${1}_external "$2"
1133 }
1134
1135 check_x86asm(){
1136     log check_x86asm "$@"
1137     name=$1
1138     shift
1139     disable $name
1140     test_x86asm "$@" && enable $name
1141 }
1142
1143 test_ld(){
1144     log test_ld "$@"
1145     type=$1
1146     shift 1
1147     flags=$(filter_out '-l*|*.so' $@)
1148     libs=$(filter '-l*|*.so' $@)
1149     test_$type $($cflags_filter $flags) || return
1150     flags=$($ldflags_filter $flags)
1151     libs=$($ldflags_filter $libs)
1152     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1153 }
1154
1155 check_ld(){
1156     log check_ld "$@"
1157     type=$1
1158     name=$2
1159     shift 2
1160     disable $name
1161     test_ld $type $@ && enable $name
1162 }
1163
1164 print_include(){
1165     hdr=$1
1166     test "${hdr%.h}" = "${hdr}" &&
1167         echo "#include $hdr"    ||
1168         echo "#include <$hdr>"
1169 }
1170
1171 test_code(){
1172     log test_code "$@"
1173     check=$1
1174     headers=$2
1175     code=$3
1176     shift 3
1177     {
1178         for hdr in $headers; do
1179             print_include $hdr
1180         done
1181         echo "int main(void) { $code; return 0; }"
1182     } | test_$check "$@"
1183 }
1184
1185 check_cppflags(){
1186     log check_cppflags "$@"
1187     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1188 #include <stdlib.h>
1189 EOF
1190 }
1191
1192 test_cflags(){
1193     log test_cflags "$@"
1194     set -- $($cflags_filter "$@")
1195     test_cc "$@" <<EOF
1196 int x;
1197 EOF
1198 }
1199
1200 check_cflags(){
1201     log check_cflags "$@"
1202     test_cflags "$@" && add_cflags "$@"
1203 }
1204
1205 check_cxxflags(){
1206     log check_cxxflags "$@"
1207     set -- $($cflags_filter "$@")
1208     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1209 int x;
1210 EOF
1211 }
1212
1213 test_objcflags(){
1214     log test_objcflags "$@"
1215     set -- $($objcflags_filter "$@")
1216     test_objcc "$@" <<EOF
1217 int x;
1218 EOF
1219 }
1220
1221 check_objcflags(){
1222     log check_objcflags "$@"
1223     test_objcflags "$@" && add_objcflags "$@"
1224 }
1225
1226 test_ldflags(){
1227     log test_ldflags "$@"
1228     set -- $($ldflags_filter "$@")
1229     test_ld "cc" "$@" <<EOF
1230 int main(void){ return 0; }
1231 EOF
1232 }
1233
1234 check_ldflags(){
1235     log check_ldflags "$@"
1236     test_ldflags "$@" && add_ldflags "$@"
1237 }
1238
1239 test_stripflags(){
1240     log test_stripflags "$@"
1241     # call test_cc to get a fresh TMPO
1242     test_cc <<EOF
1243 int main(void) { return 0; }
1244 EOF
1245     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1246 }
1247
1248 check_stripflags(){
1249     log check_stripflags "$@"
1250     test_stripflags "$@" && add_stripflags "$@"
1251 }
1252
1253 check_headers(){
1254     log check_headers "$@"
1255     headers=$1
1256     shift
1257     disable_sanitized $headers
1258     {
1259         for hdr in $headers; do
1260             print_include $hdr
1261         done
1262         echo "int x;"
1263     } | test_cpp "$@" && enable_sanitized $headers
1264 }
1265
1266 check_header_objcc(){
1267     log check_header_objcc "$@"
1268     rm -f -- "$TMPO"
1269     header=$1
1270     shift
1271     disable_sanitized $header
1272     {
1273        echo "#include <$header>"
1274        echo "int main(void) { return 0; }"
1275     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1276 }
1277
1278 check_apple_framework(){
1279     log check_apple_framework "$@"
1280     framework="$1"
1281     name="$(tolower $framework)"
1282     header="${framework}/${framework}.h"
1283     disable $name
1284     check_header_objcc $header &&
1285         enable $name && eval ${name}_extralibs='"-framework $framework"'
1286 }
1287
1288 check_func(){
1289     log check_func "$@"
1290     func=$1
1291     shift
1292     disable $func
1293     test_ld "cc" "$@" <<EOF && enable $func
1294 extern int $func();
1295 int main(void){ $func(); }
1296 EOF
1297 }
1298
1299 check_complexfunc(){
1300     log check_complexfunc "$@"
1301     func=$1
1302     narg=$2
1303     shift 2
1304     test $narg = 2 && args="f, g" || args="f * I"
1305     disable $func
1306     test_ld "cc" "$@" <<EOF && enable $func
1307 #include <complex.h>
1308 #include <math.h>
1309 float foo(complex float f, complex float g) { return $func($args); }
1310 int main(void){ return (int) foo; }
1311 EOF
1312 }
1313
1314 check_mathfunc(){
1315     log check_mathfunc "$@"
1316     func=$1
1317     narg=$2
1318     shift 2
1319     test $narg = 2 && args="f, g" || args="f"
1320     disable $func
1321     test_ld "cc" "$@" <<EOF && enable $func
1322 #include <math.h>
1323 float foo(float f, float g) { return $func($args); }
1324 int main(void){ return (int) foo; }
1325 EOF
1326 }
1327
1328 check_func_headers(){
1329     log check_func_headers "$@"
1330     headers=$1
1331     funcs=$2
1332     shift 2
1333     {
1334         for hdr in $headers; do
1335             print_include $hdr
1336         done
1337         echo "#include <stdint.h>"
1338         for func in $funcs; do
1339             echo "long check_$func(void) { return (long) $func; }"
1340         done
1341         echo "int main(void) { int ret = 0;"
1342         # LTO could optimize out the test functions without this
1343         for func in $funcs; do
1344             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1345         done
1346         echo "return ret; }"
1347     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1348 }
1349
1350 check_class_headers_cpp(){
1351     log check_class_headers_cpp "$@"
1352     headers=$1
1353     classes=$2
1354     shift 2
1355     {
1356         for hdr in $headers; do
1357             echo "#include <$hdr>"
1358         done
1359         echo "int main(void) { "
1360         i=1
1361         for class in $classes; do
1362             echo "$class obj$i;"
1363             i=$(expr $i + 1)
1364         done
1365         echo "return 0; }"
1366     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1367 }
1368
1369 test_cpp_condition(){
1370     log test_cpp_condition "$@"
1371     header=$1
1372     condition=$2
1373     shift 2
1374     test_cpp "$@" <<EOF
1375 #include <$header>
1376 #if !($condition)
1377 #error "unsatisfied condition: $condition"
1378 #endif
1379 EOF
1380 }
1381
1382 check_cpp_condition(){
1383     log check_cpp_condition "$@"
1384     name=$1
1385     shift 1
1386     disable $name
1387     test_cpp_condition "$@" && enable $name
1388 }
1389
1390 test_cflags_cc(){
1391     log test_cflags_cc "$@"
1392     flags=$1
1393     header=$2
1394     condition=$3
1395     shift 3
1396     set -- $($cflags_filter "$flags")
1397     test_cc "$@" <<EOF
1398 #include <$header>
1399 #if !($condition)
1400 #error "unsatisfied condition: $condition"
1401 #endif
1402 EOF
1403 }
1404
1405 check_lib(){
1406     log check_lib "$@"
1407     name="$1"
1408     headers="$2"
1409     funcs="$3"
1410     shift 3
1411     disable $name
1412     check_func_headers "$headers" "$funcs" "$@" &&
1413         enable $name && eval ${name}_extralibs="\$@"
1414 }
1415
1416 check_lib_cpp(){
1417     log check_lib_cpp "$@"
1418     name="$1"
1419     headers="$2"
1420     classes="$3"
1421     shift 3
1422     disable $name
1423     check_class_headers_cpp "$headers" "$classes" "$@" &&
1424         enable $name && eval ${name}_extralibs="\$@"
1425 }
1426
1427 test_pkg_config(){
1428     log test_pkg_config "$@"
1429     name="$1"
1430     pkg_version="$2"
1431     pkg="${2%% *}"
1432     headers="$3"
1433     funcs="$4"
1434     shift 4
1435     disable $name
1436     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1437     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1438     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1439     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1440         enable $name &&
1441         set_sanitized "${name}_cflags"    $pkg_cflags &&
1442         set_sanitized "${name}_extralibs" $pkg_libs
1443 }
1444
1445 check_pkg_config(){
1446     log check_pkg_config "$@"
1447     name="$1"
1448     test_pkg_config "$@" &&
1449         eval add_cflags \$${name}_cflags
1450 }
1451
1452 test_exec(){
1453     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1454 }
1455
1456 check_exec_crash(){
1457     log check_exec_crash "$@"
1458     code=$(cat)
1459
1460     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1461     # are safe but may not be available everywhere.  Thus we use
1462     # raise(SIGTERM) instead.  The check is run in a subshell so we
1463     # can redirect the "Terminated" message from the shell.  SIGBUS
1464     # is not defined by standard C so it is used conditionally.
1465
1466     (test_exec "$@") >> $logfile 2>&1 <<EOF
1467 #include <signal.h>
1468 static void sighandler(int sig){
1469     raise(SIGTERM);
1470 }
1471 int foo(void){
1472     $code
1473 }
1474 int (*func_ptr)(void) = foo;
1475 int main(void){
1476     signal(SIGILL, sighandler);
1477     signal(SIGFPE, sighandler);
1478     signal(SIGSEGV, sighandler);
1479 #ifdef SIGBUS
1480     signal(SIGBUS, sighandler);
1481 #endif
1482     return func_ptr();
1483 }
1484 EOF
1485 }
1486
1487 check_type(){
1488     log check_type "$@"
1489     headers=$1
1490     type=$2
1491     shift 2
1492     disable_sanitized "$type"
1493     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1494 }
1495
1496 check_struct(){
1497     log check_struct "$@"
1498     headers=$1
1499     struct=$2
1500     member=$3
1501     shift 3
1502     disable_sanitized "${struct}_${member}"
1503     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1504         enable_sanitized "${struct}_${member}"
1505 }
1506
1507 check_builtin(){
1508     log check_builtin "$@"
1509     name=$1
1510     headers=$2
1511     builtin=$3
1512     shift 3
1513     disable "$name"
1514     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1515 }
1516
1517 check_compile_assert(){
1518     log check_compile_assert "$@"
1519     name=$1
1520     headers=$2
1521     condition=$3
1522     shift 3
1523     disable "$name"
1524     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1525 }
1526
1527 check_cc(){
1528     log check_cc "$@"
1529     name=$1
1530     shift
1531     disable "$name"
1532     test_code cc "$@" && enable "$name"
1533 }
1534
1535 require(){
1536     log require "$@"
1537     name_version="$1"
1538     name="${1%% *}"
1539     shift
1540     check_lib $name "$@" || die "ERROR: $name_version not found"
1541 }
1542
1543 require_cc(){
1544     log require_cc "$@"
1545     name="$1"
1546     check_cc "$@" || die "ERROR: $name failed"
1547 }
1548
1549 require_cpp(){
1550     name="$1"
1551     headers="$2"
1552     classes="$3"
1553     shift 3
1554     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1555 }
1556
1557 require_headers(){
1558     log require_headers "$@"
1559     headers="$1"
1560     check_headers "$@" || die "ERROR: $headers not found"
1561 }
1562
1563 require_cpp_condition(){
1564     log require_cpp_condition "$@"
1565     condition="$3"
1566     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1567 }
1568
1569 require_pkg_config(){
1570     log require_pkg_config "$@"
1571     pkg_version="$2"
1572     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1573 }
1574
1575 test_host_cc(){
1576     log test_host_cc "$@"
1577     cat > $TMPC
1578     log_file $TMPC
1579     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1580 }
1581
1582 test_host_cpp(){
1583     log test_host_cpp "$@"
1584     cat > $TMPC
1585     log_file $TMPC
1586     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1587 }
1588
1589 check_host_cppflags(){
1590     log check_host_cppflags "$@"
1591     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1592 #include <stdlib.h>
1593 EOF
1594 }
1595
1596 check_host_cflags(){
1597     log check_host_cflags "$@"
1598     set -- $($host_cflags_filter "$@")
1599     test_host_cc "$@" <<EOF && append host_cflags "$@"
1600 int x;
1601 EOF
1602 }
1603
1604 test_host_cpp_condition(){
1605     log test_host_cpp_condition "$@"
1606     header=$1
1607     condition=$2
1608     shift 2
1609     test_host_cpp "$@" <<EOF
1610 #include <$header>
1611 #if !($condition)
1612 #error "unsatisfied condition: $condition"
1613 #endif
1614 EOF
1615 }
1616
1617 check_host_cpp_condition(){
1618     log check_host_cpp_condition "$@"
1619     name=$1
1620     shift 1
1621     disable $name
1622     test_host_cpp_condition "$@" && enable $name
1623 }
1624
1625 cp_if_changed(){
1626     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1627     mkdir -p "$(dirname $2)"
1628     cp -f "$1" "$2"
1629 }
1630
1631 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1632 # system-dependent things.
1633
1634 AVCODEC_COMPONENTS="
1635     bsfs
1636     decoders
1637     encoders
1638     hwaccels
1639     parsers
1640 "
1641
1642 AVDEVICE_COMPONENTS="
1643     indevs
1644     outdevs
1645 "
1646
1647 AVFILTER_COMPONENTS="
1648     filters
1649 "
1650
1651 AVFORMAT_COMPONENTS="
1652     demuxers
1653     muxers
1654     protocols
1655 "
1656
1657 COMPONENT_LIST="
1658     $AVCODEC_COMPONENTS
1659     $AVDEVICE_COMPONENTS
1660     $AVFILTER_COMPONENTS
1661     $AVFORMAT_COMPONENTS
1662 "
1663
1664 EXAMPLE_LIST="
1665     avio_dir_cmd_example
1666     avio_reading_example
1667     decode_audio_example
1668     decode_video_example
1669     demuxing_decoding_example
1670     encode_audio_example
1671     encode_video_example
1672     extract_mvs_example
1673     filter_audio_example
1674     filtering_audio_example
1675     filtering_video_example
1676     http_multiclient_example
1677     hw_decode_example
1678     metadata_example
1679     muxing_example
1680     qsvdec_example
1681     remuxing_example
1682     resampling_audio_example
1683     scaling_video_example
1684     transcode_aac_example
1685     transcoding_example
1686     vaapi_encode_example
1687     vaapi_transcode_example
1688 "
1689
1690 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1691     alsa
1692     appkit
1693     avfoundation
1694     bzlib
1695     coreimage
1696     iconv
1697     libxcb
1698     libxcb_shm
1699     libxcb_shape
1700     libxcb_xfixes
1701     lzma
1702     schannel
1703     sdl2
1704     securetransport
1705     sndio
1706     xlib
1707     zlib
1708 "
1709
1710 EXTERNAL_LIBRARY_GPL_LIST="
1711     avisynth
1712     frei0r
1713     libcdio
1714     libdavs2
1715     librubberband
1716     libvidstab
1717     libx264
1718     libx265
1719     libxavs
1720     libxavs2
1721     libxvid
1722 "
1723
1724 EXTERNAL_LIBRARY_NONFREE_LIST="
1725     decklink
1726     libfdk_aac
1727     openssl
1728     libtls
1729 "
1730
1731 EXTERNAL_LIBRARY_VERSION3_LIST="
1732     gmp
1733     libaribb24
1734     liblensfun
1735     libopencore_amrnb
1736     libopencore_amrwb
1737     libvmaf
1738     libvo_amrwbenc
1739     mbedtls
1740     rkmpp
1741 "
1742
1743 EXTERNAL_LIBRARY_GPLV3_LIST="
1744     libsmbclient
1745 "
1746
1747 EXTERNAL_LIBRARY_LIST="
1748     $EXTERNAL_LIBRARY_GPL_LIST
1749     $EXTERNAL_LIBRARY_NONFREE_LIST
1750     $EXTERNAL_LIBRARY_VERSION3_LIST
1751     $EXTERNAL_LIBRARY_GPLV3_LIST
1752     chromaprint
1753     gcrypt
1754     gnutls
1755     jni
1756     ladspa
1757     libaom
1758     libass
1759     libbluray
1760     libbs2b
1761     libcaca
1762     libcelt
1763     libcodec2
1764     libdav1d
1765     libdc1394
1766     libdrm
1767     libflite
1768     libfontconfig
1769     libfreetype
1770     libfribidi
1771     libgme
1772     libgsm
1773     libiec61883
1774     libilbc
1775     libjack
1776     libklvanc
1777     libkvazaar
1778     libmodplug
1779     libmp3lame
1780     libmysofa
1781     libopencv
1782     libopenh264
1783     libopenjpeg
1784     libopenmpt
1785     libopus
1786     libpulse
1787     librsvg
1788     librtmp
1789     libshine
1790     libsmbclient
1791     libsnappy
1792     libsoxr
1793     libspeex
1794     libsrt
1795     libssh
1796     libtensorflow
1797     libtesseract
1798     libtheora
1799     libtwolame
1800     libv4l2
1801     libvorbis
1802     libvpx
1803     libwavpack
1804     libwebp
1805     libxml2
1806     libzimg
1807     libzmq
1808     libzvbi
1809     lv2
1810     mediacodec
1811     openal
1812     opengl
1813     pocketsphinx
1814     vapoursynth
1815 "
1816
1817 HWACCEL_AUTODETECT_LIBRARY_LIST="
1818     amf
1819     audiotoolbox
1820     crystalhd
1821     cuda
1822     cuda_llvm
1823     cuvid
1824     d3d11va
1825     dxva2
1826     ffnvcodec
1827     nvdec
1828     nvenc
1829     vaapi
1830     vdpau
1831     videotoolbox
1832     v4l2_m2m
1833     xvmc
1834 "
1835
1836 # catchall list of things that require external libs to link
1837 EXTRALIBS_LIST="
1838     cpu_init
1839     cws2fws
1840 "
1841
1842 HWACCEL_LIBRARY_NONFREE_LIST="
1843     cuda_nvcc
1844     cuda_sdk
1845     libnpp
1846 "
1847
1848 HWACCEL_LIBRARY_LIST="
1849     $HWACCEL_LIBRARY_NONFREE_LIST
1850     libmfx
1851     mmal
1852     omx
1853     opencl
1854 "
1855
1856 DOCUMENT_LIST="
1857     doc
1858     htmlpages
1859     manpages
1860     podpages
1861     txtpages
1862 "
1863
1864 FEATURE_LIST="
1865     ftrapv
1866     gray
1867     hardcoded_tables
1868     omx_rpi
1869     runtime_cpudetect
1870     safe_bitstream_reader
1871     shared
1872     small
1873     static
1874     swscale_alpha
1875 "
1876
1877 # this list should be kept in linking order
1878 LIBRARY_LIST="
1879     avdevice
1880     avfilter
1881     swscale
1882     postproc
1883     avformat
1884     avcodec
1885     swresample
1886     avresample
1887     avutil
1888 "
1889
1890 LICENSE_LIST="
1891     gpl
1892     nonfree
1893     version3
1894 "
1895
1896 PROGRAM_LIST="
1897     ffplay
1898     ffprobe
1899     ffmpeg
1900 "
1901
1902 SUBSYSTEM_LIST="
1903     dct
1904     dwt
1905     error_resilience
1906     faan
1907     fast_unaligned
1908     fft
1909     lsp
1910     lzo
1911     mdct
1912     pixelutils
1913     network
1914     rdft
1915 "
1916
1917 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1918 CONFIG_LIST="
1919     $DOCUMENT_LIST
1920     $EXAMPLE_LIST
1921     $EXTERNAL_LIBRARY_LIST
1922     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1923     $HWACCEL_LIBRARY_LIST
1924     $HWACCEL_AUTODETECT_LIBRARY_LIST
1925     $FEATURE_LIST
1926     $LICENSE_LIST
1927     $LIBRARY_LIST
1928     $PROGRAM_LIST
1929     $SUBSYSTEM_LIST
1930     autodetect
1931     fontconfig
1932     linux_perf
1933     memory_poisoning
1934     neon_clobber_test
1935     ossfuzz
1936     pic
1937     thumb
1938     valgrind_backtrace
1939     xmm_clobber_test
1940     $COMPONENT_LIST
1941 "
1942
1943 THREADS_LIST="
1944     pthreads
1945     os2threads
1946     w32threads
1947 "
1948
1949 ATOMICS_LIST="
1950     atomics_gcc
1951     atomics_suncc
1952     atomics_win32
1953 "
1954
1955 AUTODETECT_LIBS="
1956     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1957     $HWACCEL_AUTODETECT_LIBRARY_LIST
1958     $THREADS_LIST
1959 "
1960
1961 ARCH_LIST="
1962     aarch64
1963     alpha
1964     arm
1965     avr32
1966     avr32_ap
1967     avr32_uc
1968     bfin
1969     ia64
1970     m68k
1971     mips
1972     mips64
1973     parisc
1974     ppc
1975     ppc64
1976     s390
1977     sh4
1978     sparc
1979     sparc64
1980     tilegx
1981     tilepro
1982     tomi
1983     x86
1984     x86_32
1985     x86_64
1986 "
1987
1988 ARCH_EXT_LIST_ARM="
1989     armv5te
1990     armv6
1991     armv6t2
1992     armv8
1993     neon
1994     vfp
1995     vfpv3
1996     setend
1997 "
1998
1999 ARCH_EXT_LIST_MIPS="
2000     mipsfpu
2001     mips32r2
2002     mips32r5
2003     mips64r2
2004     mips32r6
2005     mips64r6
2006     mipsdsp
2007     mipsdspr2
2008     msa
2009     msa2
2010 "
2011
2012 ARCH_EXT_LIST_LOONGSON="
2013     loongson2
2014     loongson3
2015     mmi
2016 "
2017
2018 ARCH_EXT_LIST_X86_SIMD="
2019     aesni
2020     amd3dnow
2021     amd3dnowext
2022     avx
2023     avx2
2024     avx512
2025     fma3
2026     fma4
2027     mmx
2028     mmxext
2029     sse
2030     sse2
2031     sse3
2032     sse4
2033     sse42
2034     ssse3
2035     xop
2036 "
2037
2038 ARCH_EXT_LIST_PPC="
2039     altivec
2040     dcbzl
2041     ldbrx
2042     power8
2043     ppc4xx
2044     vsx
2045 "
2046
2047 ARCH_EXT_LIST_X86="
2048     $ARCH_EXT_LIST_X86_SIMD
2049     cpunop
2050     i686
2051 "
2052
2053 ARCH_EXT_LIST="
2054     $ARCH_EXT_LIST_ARM
2055     $ARCH_EXT_LIST_PPC
2056     $ARCH_EXT_LIST_X86
2057     $ARCH_EXT_LIST_MIPS
2058     $ARCH_EXT_LIST_LOONGSON
2059 "
2060
2061 ARCH_FEATURES="
2062     aligned_stack
2063     fast_64bit
2064     fast_clz
2065     fast_cmov
2066     local_aligned
2067     simd_align_16
2068     simd_align_32
2069     simd_align_64
2070 "
2071
2072 BUILTIN_LIST="
2073     atomic_cas_ptr
2074     machine_rw_barrier
2075     MemoryBarrier
2076     mm_empty
2077     rdtsc
2078     sem_timedwait
2079     sync_val_compare_and_swap
2080 "
2081 HAVE_LIST_CMDLINE="
2082     inline_asm
2083     symver
2084     x86asm
2085 "
2086
2087 HAVE_LIST_PUB="
2088     bigendian
2089     fast_unaligned
2090 "
2091
2092 HEADERS_LIST="
2093     arpa_inet_h
2094     asm_types_h
2095     cdio_paranoia_h
2096     cdio_paranoia_paranoia_h
2097     cuda_h
2098     dispatch_dispatch_h
2099     dev_bktr_ioctl_bt848_h
2100     dev_bktr_ioctl_meteor_h
2101     dev_ic_bt8xx_h
2102     dev_video_bktr_ioctl_bt848_h
2103     dev_video_meteor_ioctl_meteor_h
2104     direct_h
2105     dirent_h
2106     dxgidebug_h
2107     dxva_h
2108     ES2_gl_h
2109     gsm_h
2110     io_h
2111     linux_perf_event_h
2112     machine_ioctl_bt848_h
2113     machine_ioctl_meteor_h
2114     malloc_h
2115     opencv2_core_core_c_h
2116     OpenGL_gl3_h
2117     poll_h
2118     sys_param_h
2119     sys_resource_h
2120     sys_select_h
2121     sys_soundcard_h
2122     sys_time_h
2123     sys_un_h
2124     sys_videoio_h
2125     termios_h
2126     udplite_h
2127     unistd_h
2128     valgrind_valgrind_h
2129     windows_h
2130     winsock2_h
2131 "
2132
2133 INTRINSICS_LIST="
2134     intrinsics_neon
2135 "
2136
2137 COMPLEX_FUNCS="
2138     cabs
2139     cexp
2140 "
2141
2142 MATH_FUNCS="
2143     atanf
2144     atan2f
2145     cbrt
2146     cbrtf
2147     copysign
2148     cosf
2149     erf
2150     exp2
2151     exp2f
2152     expf
2153     hypot
2154     isfinite
2155     isinf
2156     isnan
2157     ldexpf
2158     llrint
2159     llrintf
2160     log2
2161     log2f
2162     log10f
2163     lrint
2164     lrintf
2165     powf
2166     rint
2167     round
2168     roundf
2169     sinf
2170     trunc
2171     truncf
2172 "
2173
2174 SYSTEM_FEATURES="
2175     dos_paths
2176     libc_msvcrt
2177     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2178     section_data_rel_ro
2179     threads
2180     uwp
2181     winrt
2182 "
2183
2184 SYSTEM_FUNCS="
2185     access
2186     aligned_malloc
2187     arc4random
2188     clock_gettime
2189     closesocket
2190     CommandLineToArgvW
2191     fcntl
2192     getaddrinfo
2193     gethrtime
2194     getopt
2195     GetProcessAffinityMask
2196     GetProcessMemoryInfo
2197     GetProcessTimes
2198     getrusage
2199     GetSystemTimeAsFileTime
2200     gettimeofday
2201     glob
2202     glXGetProcAddress
2203     gmtime_r
2204     inet_aton
2205     isatty
2206     kbhit
2207     localtime_r
2208     lstat
2209     lzo1x_999_compress
2210     mach_absolute_time
2211     MapViewOfFile
2212     memalign
2213     mkstemp
2214     mmap
2215     mprotect
2216     nanosleep
2217     PeekNamedPipe
2218     posix_memalign
2219     pthread_cancel
2220     sched_getaffinity
2221     SecItemImport
2222     SetConsoleTextAttribute
2223     SetConsoleCtrlHandler
2224     setmode
2225     setrlimit
2226     Sleep
2227     strerror_r
2228     sysconf
2229     sysctl
2230     usleep
2231     UTGetOSTypeFromString
2232     VirtualAlloc
2233     wglGetProcAddress
2234 "
2235
2236 SYSTEM_LIBRARIES="
2237     bcrypt
2238     vaapi_drm
2239     vaapi_x11
2240     vdpau_x11
2241 "
2242
2243 TOOLCHAIN_FEATURES="
2244     as_arch_directive
2245     as_dn_directive
2246     as_fpu_directive
2247     as_func
2248     as_object_arch
2249     asm_mod_q
2250     blocks_extension
2251     ebp_available
2252     ebx_available
2253     gnu_as
2254     gnu_windres
2255     ibm_asm
2256     inline_asm_direct_symbol_refs
2257     inline_asm_labels
2258     inline_asm_nonlocal_labels
2259     pragma_deprecated
2260     rsync_contimeout
2261     symver_asm_label
2262     symver_gnu_asm
2263     vfp_args
2264     xform_asm
2265     xmm_clobbers
2266 "
2267
2268 TYPES_LIST="
2269     kCMVideoCodecType_HEVC
2270     kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
2271     kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
2272     kCVImageBufferTransferFunction_ITU_R_2100_HLG
2273     kCVImageBufferTransferFunction_Linear
2274     socklen_t
2275     struct_addrinfo
2276     struct_group_source_req
2277     struct_ip_mreq_source
2278     struct_ipv6_mreq
2279     struct_msghdr_msg_flags
2280     struct_pollfd
2281     struct_rusage_ru_maxrss
2282     struct_sctp_event_subscribe
2283     struct_sockaddr_in6
2284     struct_sockaddr_sa_len
2285     struct_sockaddr_storage
2286     struct_stat_st_mtim_tv_nsec
2287     struct_v4l2_frmivalenum_discrete
2288 "
2289
2290 HAVE_LIST="
2291     $ARCH_EXT_LIST
2292     $(add_suffix _external $ARCH_EXT_LIST)
2293     $(add_suffix _inline   $ARCH_EXT_LIST)
2294     $ARCH_FEATURES
2295     $BUILTIN_LIST
2296     $COMPLEX_FUNCS
2297     $HAVE_LIST_CMDLINE
2298     $HAVE_LIST_PUB
2299     $HEADERS_LIST
2300     $INTRINSICS_LIST
2301     $MATH_FUNCS
2302     $SYSTEM_FEATURES
2303     $SYSTEM_FUNCS
2304     $SYSTEM_LIBRARIES
2305     $THREADS_LIST
2306     $TOOLCHAIN_FEATURES
2307     $TYPES_LIST
2308     makeinfo
2309     makeinfo_html
2310     opencl_d3d11
2311     opencl_drm_arm
2312     opencl_drm_beignet
2313     opencl_dxva2
2314     opencl_vaapi_beignet
2315     opencl_vaapi_intel_media
2316     perl
2317     pod2man
2318     texi2html
2319 "
2320
2321 # options emitted with CONFIG_ prefix but not available on the command line
2322 CONFIG_EXTRA="
2323     aandcttables
2324     ac3dsp
2325     adts_header
2326     audio_frame_queue
2327     audiodsp
2328     blockdsp
2329     bswapdsp
2330     cabac
2331     cbs
2332     cbs_av1
2333     cbs_h264
2334     cbs_h265
2335     cbs_jpeg
2336     cbs_mpeg2
2337     cbs_vp9
2338     dirac_parse
2339     dnn
2340     dvprofile
2341     exif
2342     faandct
2343     faanidct
2344     fdctdsp
2345     flacdsp
2346     fmtconvert
2347     frame_thread_encoder
2348     g722dsp
2349     golomb
2350     gplv3
2351     h263dsp
2352     h264chroma
2353     h264dsp
2354     h264parse
2355     h264pred
2356     h264qpel
2357     hevcparse
2358     hpeldsp
2359     huffman
2360     huffyuvdsp
2361     huffyuvencdsp
2362     idctdsp
2363     iirfilter
2364     mdct15
2365     intrax8
2366     iso_media
2367     ividsp
2368     jpegtables
2369     lgplv3
2370     libx262
2371     llauddsp
2372     llviddsp
2373     llvidencdsp
2374     lpc
2375     lzf
2376     me_cmp
2377     mpeg_er
2378     mpegaudio
2379     mpegaudiodsp
2380     mpegaudioheader
2381     mpegvideo
2382     mpegvideoenc
2383     mss34dsp
2384     pixblockdsp
2385     qpeldsp
2386     qsv
2387     qsvdec
2388     qsvenc
2389     qsvvpp
2390     rangecoder
2391     riffdec
2392     riffenc
2393     rtpdec
2394     rtpenc_chain
2395     rv34dsp
2396     scene_sad
2397     sinewin
2398     snappy
2399     srtp
2400     startcode
2401     texturedsp
2402     texturedspenc
2403     tpeldsp
2404     vaapi_1
2405     vaapi_encode
2406     vc1dsp
2407     videodsp
2408     vp3dsp
2409     vp56dsp
2410     vp8dsp
2411     wma_freqs
2412     wmv2dsp
2413 "
2414
2415 CMDLINE_SELECT="
2416     $ARCH_EXT_LIST
2417     $CONFIG_LIST
2418     $HAVE_LIST_CMDLINE
2419     $THREADS_LIST
2420     asm
2421     cross_compile
2422     debug
2423     extra_warnings
2424     logging
2425     lto
2426     optimizations
2427     rpath
2428     stripping
2429 "
2430
2431 PATHS_LIST="
2432     bindir
2433     datadir
2434     docdir
2435     incdir
2436     libdir
2437     mandir
2438     pkgconfigdir
2439     prefix
2440     shlibdir
2441     install_name_dir
2442 "
2443
2444 CMDLINE_SET="
2445     $PATHS_LIST
2446     ar
2447     arch
2448     as
2449     assert_level
2450     build_suffix
2451     cc
2452     objcc
2453     cpu
2454     cross_prefix
2455     custom_allocator
2456     cxx
2457     dep_cc
2458     doxygen
2459     env
2460     extra_version
2461     gas
2462     host_cc
2463     host_cflags
2464     host_extralibs
2465     host_ld
2466     host_ldflags
2467     host_os
2468     ignore_tests
2469     install
2470     ld
2471     ln_s
2472     logfile
2473     malloc_prefix
2474     nm
2475     optflags
2476     nvcc
2477     nvccflags
2478     pkg_config
2479     pkg_config_flags
2480     progs_suffix
2481     random_seed
2482     ranlib
2483     samples
2484     strip
2485     sws_max_filter_size
2486     sysinclude
2487     sysroot
2488     target_exec
2489     target_os
2490     target_path
2491     target_samples
2492     tempprefix
2493     toolchain
2494     valgrind
2495     windres
2496     x86asmexe
2497 "
2498
2499 CMDLINE_APPEND="
2500     extra_cflags
2501     extra_cxxflags
2502     extra_objcflags
2503     host_cppflags
2504 "
2505
2506 # code dependency declarations
2507
2508 # architecture extensions
2509
2510 armv5te_deps="arm"
2511 armv6_deps="arm"
2512 armv6t2_deps="arm"
2513 armv8_deps="aarch64"
2514 neon_deps_any="aarch64 arm"
2515 intrinsics_neon_deps="neon"
2516 vfp_deps_any="aarch64 arm"
2517 vfpv3_deps="vfp"
2518 setend_deps="arm"
2519
2520 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2521
2522 altivec_deps="ppc"
2523 dcbzl_deps="ppc"
2524 ldbrx_deps="ppc"
2525 ppc4xx_deps="ppc"
2526 vsx_deps="altivec"
2527 power8_deps="vsx"
2528
2529 loongson2_deps="mips"
2530 loongson3_deps="mips"
2531 mips32r2_deps="mips"
2532 mips32r5_deps="mips"
2533 mips32r6_deps="mips"
2534 mips64r2_deps="mips"
2535 mips64r6_deps="mips"
2536 mipsfpu_deps="mips"
2537 mipsdsp_deps="mips"
2538 mipsdspr2_deps="mips"
2539 mmi_deps="mips"
2540 msa_deps="mipsfpu"
2541 msa2_deps="msa"
2542
2543 cpunop_deps="i686"
2544 x86_64_select="i686"
2545 x86_64_suggest="fast_cmov"
2546
2547 amd3dnow_deps="mmx"
2548 amd3dnowext_deps="amd3dnow"
2549 i686_deps="x86"
2550 mmx_deps="x86"
2551 mmxext_deps="mmx"
2552 sse_deps="mmxext"
2553 sse2_deps="sse"
2554 sse3_deps="sse2"
2555 ssse3_deps="sse3"
2556 sse4_deps="ssse3"
2557 sse42_deps="sse4"
2558 aesni_deps="sse42"
2559 avx_deps="sse42"
2560 xop_deps="avx"
2561 fma3_deps="avx"
2562 fma4_deps="avx"
2563 avx2_deps="avx"
2564 avx512_deps="avx2"
2565
2566 mmx_external_deps="x86asm"
2567 mmx_inline_deps="inline_asm x86"
2568 mmx_suggest="mmx_external mmx_inline"
2569
2570 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2571     eval dep=\$${ext}_deps
2572     eval ${ext}_external_deps='"${dep}_external"'
2573     eval ${ext}_inline_deps='"${dep}_inline"'
2574     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2575 done
2576
2577 aligned_stack_if_any="aarch64 ppc x86"
2578 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2579 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2580 fast_unaligned_if_any="aarch64 ppc x86"
2581 simd_align_16_if_any="altivec neon sse"
2582 simd_align_32_if_any="avx"
2583 simd_align_64_if_any="avx512"
2584
2585 # system capabilities
2586 linux_perf_deps="linux_perf_event_h"
2587 symver_if_any="symver_asm_label symver_gnu_asm"
2588 valgrind_backtrace_conflict="optimizations"
2589 valgrind_backtrace_deps="valgrind_valgrind_h"
2590
2591 # threading support
2592 atomics_gcc_if="sync_val_compare_and_swap"
2593 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2594 atomics_win32_if="MemoryBarrier"
2595 atomics_native_if_any="$ATOMICS_LIST"
2596 w32threads_deps="atomics_native"
2597 threads_if_any="$THREADS_LIST"
2598
2599 # subsystems
2600 cbs_av1_select="cbs"
2601 cbs_h264_select="cbs"
2602 cbs_h265_select="cbs"
2603 cbs_jpeg_select="cbs"
2604 cbs_mpeg2_select="cbs"
2605 cbs_vp9_select="cbs"
2606 dct_select="rdft"
2607 dirac_parse_select="golomb"
2608 dnn_suggest="libtensorflow"
2609 error_resilience_select="me_cmp"
2610 faandct_deps="faan"
2611 faandct_select="fdctdsp"
2612 faanidct_deps="faan"
2613 faanidct_select="idctdsp"
2614 h264dsp_select="startcode"
2615 hevcparse_select="golomb"
2616 frame_thread_encoder_deps="encoders threads"
2617 intrax8_select="blockdsp idctdsp"
2618 mdct_select="fft"
2619 mdct15_select="fft"
2620 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2621 mpeg_er_select="error_resilience"
2622 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2623 mpegaudiodsp_select="dct"
2624 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2625 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2626 vc1dsp_select="h264chroma qpeldsp startcode"
2627 rdft_select="fft"
2628
2629 # decoders / encoders
2630 aac_decoder_select="adts_header mdct15 mdct sinewin"
2631 aac_fixed_decoder_select="adts_header mdct sinewin"
2632 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2633 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2634 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2635 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2636 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2637 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2638 adpcm_g722_decoder_select="g722dsp"
2639 adpcm_g722_encoder_select="g722dsp"
2640 aic_decoder_select="golomb idctdsp"
2641 alac_encoder_select="lpc"
2642 als_decoder_select="bswapdsp"
2643 amrnb_decoder_select="lsp"
2644 amrwb_decoder_select="lsp"
2645 amv_decoder_select="sp5x_decoder exif"
2646 amv_encoder_select="jpegtables mpegvideoenc"
2647 ape_decoder_select="bswapdsp llauddsp"
2648 apng_decoder_deps="zlib"
2649 apng_encoder_deps="zlib"
2650 apng_encoder_select="llvidencdsp"
2651 aptx_decoder_select="audio_frame_queue"
2652 aptx_encoder_select="audio_frame_queue"
2653 aptx_hd_decoder_select="audio_frame_queue"
2654 aptx_hd_encoder_select="audio_frame_queue"
2655 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2656 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2657 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2658 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2659 atrac1_decoder_select="mdct sinewin"
2660 atrac3_decoder_select="mdct"
2661 atrac3al_decoder_select="mdct"
2662 atrac3p_decoder_select="mdct sinewin"
2663 atrac3pal_decoder_select="mdct sinewin"
2664 atrac9_decoder_select="mdct"
2665 avrn_decoder_select="exif jpegtables"
2666 bink_decoder_select="blockdsp hpeldsp"
2667 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2668 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2669 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2670 clearvideo_decoder_select="idctdsp"
2671 cllc_decoder_select="bswapdsp"
2672 comfortnoise_encoder_select="lpc"
2673 cook_decoder_select="audiodsp mdct sinewin"
2674 cscd_decoder_select="lzo"
2675 cscd_decoder_suggest="zlib"
2676 dca_decoder_select="mdct"
2677 dds_decoder_select="texturedsp"
2678 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2679 dnxhd_decoder_select="blockdsp idctdsp"
2680 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2681 dolby_e_decoder_select="mdct"
2682 dvvideo_decoder_select="dvprofile idctdsp"
2683 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2684 dxa_decoder_deps="zlib"
2685 dxv_decoder_select="lzf texturedsp"
2686 eac3_decoder_select="ac3_decoder"
2687 eac3_encoder_select="ac3_encoder"
2688 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2689 eatgq_decoder_select="aandcttables"
2690 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2691 exr_decoder_deps="zlib"
2692 ffv1_decoder_select="rangecoder"
2693 ffv1_encoder_select="rangecoder"
2694 ffvhuff_decoder_select="huffyuv_decoder"
2695 ffvhuff_encoder_select="huffyuv_encoder"
2696 fic_decoder_select="golomb"
2697 flac_decoder_select="flacdsp"
2698 flac_encoder_select="bswapdsp flacdsp lpc"
2699 flashsv2_decoder_deps="zlib"
2700 flashsv2_encoder_deps="zlib"
2701 flashsv_decoder_deps="zlib"
2702 flashsv_encoder_deps="zlib"
2703 flv_decoder_select="h263_decoder"
2704 flv_encoder_select="h263_encoder"
2705 fourxm_decoder_select="blockdsp bswapdsp"
2706 fraps_decoder_select="bswapdsp huffman"
2707 g2m_decoder_deps="zlib"
2708 g2m_decoder_select="blockdsp idctdsp jpegtables"
2709 g729_decoder_select="audiodsp"
2710 h261_decoder_select="mpegvideo"
2711 h261_encoder_select="mpegvideoenc"
2712 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2713 h263_encoder_select="h263dsp mpegvideoenc"
2714 h263i_decoder_select="h263_decoder"
2715 h263p_decoder_select="h263_decoder"
2716 h263p_encoder_select="h263_encoder"
2717 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2718 h264_decoder_suggest="error_resilience"
2719 hap_decoder_select="snappy texturedsp"
2720 hap_encoder_deps="libsnappy"
2721 hap_encoder_select="texturedspenc"
2722 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2723 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2724 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2725 hymt_decoder_select="huffyuv_decoder"
2726 iac_decoder_select="imc_decoder"
2727 imc_decoder_select="bswapdsp fft mdct sinewin"
2728 imm5_decoder_select="h264_decoder hevc_decoder"
2729 indeo3_decoder_select="hpeldsp"
2730 indeo4_decoder_select="ividsp"
2731 indeo5_decoder_select="ividsp"
2732 interplay_video_decoder_select="hpeldsp"
2733 jpegls_decoder_select="mjpeg_decoder"
2734 jv_decoder_select="blockdsp"
2735 lagarith_decoder_select="llviddsp"
2736 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2737 lscr_decoder_deps="zlib"
2738 magicyuv_decoder_select="llviddsp"
2739 magicyuv_encoder_select="llvidencdsp"
2740 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2741 metasound_decoder_select="lsp mdct sinewin"
2742 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2743 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2744 mjpeg_encoder_select="jpegtables mpegvideoenc"
2745 mjpegb_decoder_select="mjpeg_decoder"
2746 mlp_decoder_select="mlp_parser"
2747 mlp_encoder_select="lpc audio_frame_queue"
2748 motionpixels_decoder_select="bswapdsp"
2749 mp1_decoder_select="mpegaudio"
2750 mp1float_decoder_select="mpegaudio"
2751 mp2_decoder_select="mpegaudio"
2752 mp2float_decoder_select="mpegaudio"
2753 mp3_decoder_select="mpegaudio"
2754 mp3adu_decoder_select="mpegaudio"
2755 mp3adufloat_decoder_select="mpegaudio"
2756 mp3float_decoder_select="mpegaudio"
2757 mp3on4_decoder_select="mpegaudio"
2758 mp3on4float_decoder_select="mpegaudio"
2759 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2760 mpc8_decoder_select="mpegaudiodsp"
2761 mpegvideo_decoder_select="mpegvideo"
2762 mpeg1video_decoder_select="mpegvideo"
2763 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2764 mpeg2video_decoder_select="mpegvideo"
2765 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2766 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2767 mpeg4_encoder_select="h263_encoder"
2768 msa1_decoder_select="mss34dsp"
2769 mscc_decoder_deps="zlib"
2770 msmpeg4v1_decoder_select="h263_decoder"
2771 msmpeg4v2_decoder_select="h263_decoder"
2772 msmpeg4v2_encoder_select="h263_encoder"
2773 msmpeg4v3_decoder_select="h263_decoder"
2774 msmpeg4v3_encoder_select="h263_encoder"
2775 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2776 mts2_decoder_select="mss34dsp"
2777 mwsc_decoder_deps="zlib"
2778 mxpeg_decoder_select="mjpeg_decoder"
2779 nellymoser_decoder_select="mdct sinewin"
2780 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2781 nuv_decoder_select="idctdsp lzo"
2782 on2avc_decoder_select="mdct"
2783 opus_decoder_deps="swresample"
2784 opus_decoder_select="mdct15"
2785 opus_encoder_select="audio_frame_queue mdct15"
2786 png_decoder_deps="zlib"
2787 png_encoder_deps="zlib"
2788 png_encoder_select="llvidencdsp"
2789 prores_decoder_select="blockdsp idctdsp"
2790 prores_encoder_select="fdctdsp"
2791 qcelp_decoder_select="lsp"
2792 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2793 ra_144_decoder_select="audiodsp"
2794 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2795 ralf_decoder_select="golomb"
2796 rasc_decoder_deps="zlib"
2797 rawvideo_decoder_select="bswapdsp"
2798 rscc_decoder_deps="zlib"
2799 rtjpeg_decoder_select="me_cmp"
2800 rv10_decoder_select="h263_decoder"
2801 rv10_encoder_select="h263_encoder"
2802 rv20_decoder_select="h263_decoder"
2803 rv20_encoder_select="h263_encoder"
2804 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2805 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2806 screenpresso_decoder_deps="zlib"
2807 shorten_decoder_select="bswapdsp"
2808 sipr_decoder_select="lsp"
2809 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2810 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2811 sonic_decoder_select="golomb rangecoder"
2812 sonic_encoder_select="golomb rangecoder"
2813 sonic_ls_encoder_select="golomb rangecoder"
2814 sp5x_decoder_select="mjpeg_decoder"
2815 speedhq_decoder_select="mpegvideo"
2816 srgc_decoder_deps="zlib"
2817 svq1_decoder_select="hpeldsp"
2818 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2819 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2820 svq3_decoder_suggest="zlib"
2821 tak_decoder_select="audiodsp"
2822 tdsc_decoder_deps="zlib"
2823 tdsc_decoder_select="mjpeg_decoder"
2824 theora_decoder_select="vp3_decoder"
2825 thp_decoder_select="mjpeg_decoder"
2826 tiff_decoder_select="mjpeg_decoder"
2827 tiff_decoder_suggest="zlib lzma"
2828 tiff_encoder_suggest="zlib"
2829 truehd_decoder_select="mlp_parser"
2830 truehd_encoder_select="lpc audio_frame_queue"
2831 truemotion2_decoder_select="bswapdsp"
2832 truespeech_decoder_select="bswapdsp"
2833 tscc_decoder_deps="zlib"
2834 twinvq_decoder_select="mdct lsp sinewin"
2835 txd_decoder_select="texturedsp"
2836 utvideo_decoder_select="bswapdsp llviddsp"
2837 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2838 vble_decoder_select="llviddsp"
2839 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2840 vc1image_decoder_select="vc1_decoder"
2841 vorbis_decoder_select="mdct"
2842 vorbis_encoder_select="audio_frame_queue mdct"
2843 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2844 vp4_decoder_select="vp3_decoder"
2845 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2846 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2847 vp6a_decoder_select="vp6_decoder"
2848 vp6f_decoder_select="vp6_decoder"
2849 vp7_decoder_select="h264pred videodsp vp8dsp"
2850 vp8_decoder_select="h264pred videodsp vp8dsp"
2851 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2852 wcmv_decoder_deps="zlib"
2853 webp_decoder_select="vp8_decoder exif"
2854 wmalossless_decoder_select="llauddsp"
2855 wmapro_decoder_select="mdct sinewin wma_freqs"
2856 wmav1_decoder_select="mdct sinewin wma_freqs"
2857 wmav1_encoder_select="mdct sinewin wma_freqs"
2858 wmav2_decoder_select="mdct sinewin wma_freqs"
2859 wmav2_encoder_select="mdct sinewin wma_freqs"
2860 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2861 wmv1_decoder_select="h263_decoder"
2862 wmv1_encoder_select="h263_encoder"
2863 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2864 wmv2_encoder_select="h263_encoder wmv2dsp"
2865 wmv3_decoder_select="vc1_decoder"
2866 wmv3image_decoder_select="wmv3_decoder"
2867 xma1_decoder_select="wmapro_decoder"
2868 xma2_decoder_select="wmapro_decoder"
2869 zerocodec_decoder_deps="zlib"
2870 zlib_decoder_deps="zlib"
2871 zlib_encoder_deps="zlib"
2872 zmbv_decoder_deps="zlib"
2873 zmbv_encoder_deps="zlib"
2874
2875 # hardware accelerators
2876 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2877 cuda_deps="ffnvcodec"
2878 cuvid_deps="ffnvcodec"
2879 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2880 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2881 ffnvcodec_deps_any="libdl LoadLibrary"
2882 nvdec_deps="ffnvcodec"
2883 vaapi_x11_deps="xlib"
2884 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2885 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2886 xvmc_deps="X11_extensions_XvMClib_h"
2887
2888 h263_vaapi_hwaccel_deps="vaapi"
2889 h263_vaapi_hwaccel_select="h263_decoder"
2890 h263_videotoolbox_hwaccel_deps="videotoolbox"
2891 h263_videotoolbox_hwaccel_select="h263_decoder"
2892 h264_d3d11va_hwaccel_deps="d3d11va"
2893 h264_d3d11va_hwaccel_select="h264_decoder"
2894 h264_d3d11va2_hwaccel_deps="d3d11va"
2895 h264_d3d11va2_hwaccel_select="h264_decoder"
2896 h264_dxva2_hwaccel_deps="dxva2"
2897 h264_dxva2_hwaccel_select="h264_decoder"
2898 h264_nvdec_hwaccel_deps="nvdec"
2899 h264_nvdec_hwaccel_select="h264_decoder"
2900 h264_vaapi_hwaccel_deps="vaapi"
2901 h264_vaapi_hwaccel_select="h264_decoder"
2902 h264_vdpau_hwaccel_deps="vdpau"
2903 h264_vdpau_hwaccel_select="h264_decoder"
2904 h264_videotoolbox_hwaccel_deps="videotoolbox"
2905 h264_videotoolbox_hwaccel_select="h264_decoder"
2906 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2907 hevc_d3d11va_hwaccel_select="hevc_decoder"
2908 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2909 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2910 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2911 hevc_dxva2_hwaccel_select="hevc_decoder"
2912 hevc_nvdec_hwaccel_deps="nvdec"
2913 hevc_nvdec_hwaccel_select="hevc_decoder"
2914 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2915 hevc_vaapi_hwaccel_select="hevc_decoder"
2916 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2917 hevc_vdpau_hwaccel_select="hevc_decoder"
2918 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2919 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2920 mjpeg_nvdec_hwaccel_deps="nvdec"
2921 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2922 mjpeg_vaapi_hwaccel_deps="vaapi"
2923 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2924 mpeg_xvmc_hwaccel_deps="xvmc"
2925 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2926 mpeg1_nvdec_hwaccel_deps="nvdec"
2927 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2928 mpeg1_vdpau_hwaccel_deps="vdpau"
2929 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2930 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2931 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2932 mpeg1_xvmc_hwaccel_deps="xvmc"
2933 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2934 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2935 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2936 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2937 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2938 mpeg2_dxva2_hwaccel_deps="dxva2"
2939 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2940 mpeg2_nvdec_hwaccel_deps="nvdec"
2941 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2942 mpeg2_vaapi_hwaccel_deps="vaapi"
2943 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2944 mpeg2_vdpau_hwaccel_deps="vdpau"
2945 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2946 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2947 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2948 mpeg2_xvmc_hwaccel_deps="xvmc"
2949 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2950 mpeg4_nvdec_hwaccel_deps="nvdec"
2951 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2952 mpeg4_vaapi_hwaccel_deps="vaapi"
2953 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2954 mpeg4_vdpau_hwaccel_deps="vdpau"
2955 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2956 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2957 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2958 vc1_d3d11va_hwaccel_deps="d3d11va"
2959 vc1_d3d11va_hwaccel_select="vc1_decoder"
2960 vc1_d3d11va2_hwaccel_deps="d3d11va"
2961 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2962 vc1_dxva2_hwaccel_deps="dxva2"
2963 vc1_dxva2_hwaccel_select="vc1_decoder"
2964 vc1_nvdec_hwaccel_deps="nvdec"
2965 vc1_nvdec_hwaccel_select="vc1_decoder"
2966 vc1_vaapi_hwaccel_deps="vaapi"
2967 vc1_vaapi_hwaccel_select="vc1_decoder"
2968 vc1_vdpau_hwaccel_deps="vdpau"
2969 vc1_vdpau_hwaccel_select="vc1_decoder"
2970 vp8_nvdec_hwaccel_deps="nvdec"
2971 vp8_nvdec_hwaccel_select="vp8_decoder"
2972 vp8_vaapi_hwaccel_deps="vaapi"
2973 vp8_vaapi_hwaccel_select="vp8_decoder"
2974 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2975 vp9_d3d11va_hwaccel_select="vp9_decoder"
2976 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2977 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2978 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2979 vp9_dxva2_hwaccel_select="vp9_decoder"
2980 vp9_nvdec_hwaccel_deps="nvdec"
2981 vp9_nvdec_hwaccel_select="vp9_decoder"
2982 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2983 vp9_vaapi_hwaccel_select="vp9_decoder"
2984 vp9_vdpau_hwaccel_deps="vdpau VdpPictureInfoVP9"
2985 vp9_vdpau_hwaccel_select="vp9_decoder"
2986 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2987 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2988 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2989 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2990 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2991 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2992
2993 # hardware-accelerated codecs
2994 omx_deps="libdl pthreads"
2995 omx_rpi_select="omx"
2996 qsv_deps="libmfx"
2997 qsvdec_select="qsv"
2998 qsvenc_select="qsv"
2999 qsvvpp_select="qsv"
3000 vaapi_encode_deps="vaapi"
3001 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
3002
3003 hwupload_cuda_filter_deps="ffnvcodec"
3004 scale_npp_filter_deps="ffnvcodec libnpp"
3005 scale_cuda_filter_deps="ffnvcodec"
3006 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3007 thumbnail_cuda_filter_deps="ffnvcodec"
3008 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3009 transpose_npp_filter_deps="ffnvcodec libnpp"
3010
3011 amf_deps_any="libdl LoadLibrary"
3012 nvenc_deps="ffnvcodec"
3013 nvenc_deps_any="libdl LoadLibrary"
3014 nvenc_encoder_deps="nvenc"
3015
3016 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3017 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3018 h264_amf_encoder_deps="amf"
3019 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3020 h264_cuvid_decoder_deps="cuvid"
3021 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3022 h264_mediacodec_decoder_deps="mediacodec"
3023 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3024 h264_mmal_decoder_deps="mmal"
3025 h264_nvenc_encoder_deps="nvenc"
3026 h264_omx_encoder_deps="omx"
3027 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3028 h264_qsv_encoder_select="qsvenc"
3029 h264_rkmpp_decoder_deps="rkmpp"
3030 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3031 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3032 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3033 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3034 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3035 hevc_amf_encoder_deps="amf"
3036 hevc_cuvid_decoder_deps="cuvid"
3037 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3038 hevc_mediacodec_decoder_deps="mediacodec"
3039 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3040 hevc_nvenc_encoder_deps="nvenc"
3041 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3042 hevc_qsv_encoder_select="hevcparse qsvenc"
3043 hevc_rkmpp_decoder_deps="rkmpp"
3044 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3045 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3046 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3047 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3048 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3049 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3050 mjpeg_cuvid_decoder_deps="cuvid"
3051 mjpeg_qsv_decoder_select="qsvdec"
3052 mjpeg_qsv_encoder_deps="libmfx"
3053 mjpeg_qsv_encoder_select="qsvenc"
3054 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3055 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3056 mpeg1_cuvid_decoder_deps="cuvid"
3057 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3058 mpeg2_crystalhd_decoder_select="crystalhd"
3059 mpeg2_cuvid_decoder_deps="cuvid"
3060 mpeg2_mmal_decoder_deps="mmal"
3061 mpeg2_mediacodec_decoder_deps="mediacodec"
3062 mpeg2_qsv_decoder_select="qsvdec"
3063 mpeg2_qsv_encoder_select="qsvenc"
3064 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3065 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3066 mpeg4_crystalhd_decoder_select="crystalhd"
3067 mpeg4_cuvid_decoder_deps="cuvid"
3068 mpeg4_mediacodec_decoder_deps="mediacodec"
3069 mpeg4_mmal_decoder_deps="mmal"
3070 mpeg4_omx_encoder_deps="omx"
3071 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3072 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3073 msmpeg4_crystalhd_decoder_select="crystalhd"
3074 nvenc_h264_encoder_select="h264_nvenc_encoder"
3075 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3076 vc1_crystalhd_decoder_select="crystalhd"
3077 vc1_cuvid_decoder_deps="cuvid"
3078 vc1_mmal_decoder_deps="mmal"
3079 vc1_qsv_decoder_select="qsvdec"
3080 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3081 vp8_cuvid_decoder_deps="cuvid"
3082 vp8_mediacodec_decoder_deps="mediacodec"
3083 vp8_qsv_decoder_select="qsvdec"
3084 vp8_rkmpp_decoder_deps="rkmpp"
3085 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3086 vp8_vaapi_encoder_select="vaapi_encode"
3087 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3088 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3089 vp9_cuvid_decoder_deps="cuvid"
3090 vp9_mediacodec_decoder_deps="mediacodec"
3091 vp9_qsv_decoder_select="qsvdec"
3092 vp9_rkmpp_decoder_deps="rkmpp"
3093 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3094 vp9_vaapi_encoder_select="vaapi_encode"
3095 vp9_qsv_encoder_deps="libmfx MFX_CODEC_VP9"
3096 vp9_qsv_encoder_select="qsvenc"
3097 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3098 wmv3_crystalhd_decoder_select="crystalhd"
3099
3100 # parsers
3101 aac_parser_select="adts_header"
3102 av1_parser_select="cbs_av1"
3103 h264_parser_select="golomb h264dsp h264parse"
3104 hevc_parser_select="hevcparse"
3105 mpegaudio_parser_select="mpegaudioheader"
3106 mpegvideo_parser_select="mpegvideo"
3107 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3108 vc1_parser_select="vc1dsp"
3109
3110 # bitstream_filters
3111 aac_adtstoasc_bsf_select="adts_header"
3112 av1_frame_split_bsf_select="cbs_av1"
3113 av1_metadata_bsf_select="cbs_av1"
3114 eac3_core_bsf_select="ac3_parser"
3115 filter_units_bsf_select="cbs"
3116 h264_metadata_bsf_deps="const_nan"
3117 h264_metadata_bsf_select="cbs_h264"
3118 h264_redundant_pps_bsf_select="cbs_h264"
3119 hevc_metadata_bsf_select="cbs_h265"
3120 mjpeg2jpeg_bsf_select="jpegtables"
3121 mpeg2_metadata_bsf_select="cbs_mpeg2"
3122 trace_headers_bsf_select="cbs"
3123 vp9_metadata_bsf_select="cbs_vp9"
3124
3125 # external libraries
3126 aac_at_decoder_deps="audiotoolbox"
3127 aac_at_decoder_select="aac_adtstoasc_bsf"
3128 ac3_at_decoder_deps="audiotoolbox"
3129 ac3_at_decoder_select="ac3_parser"
3130 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3131 alac_at_decoder_deps="audiotoolbox"
3132 amr_nb_at_decoder_deps="audiotoolbox"
3133 avisynth_deps_any="libdl LoadLibrary"
3134 avisynth_demuxer_deps="avisynth"
3135 avisynth_demuxer_select="riffdec"
3136 eac3_at_decoder_deps="audiotoolbox"
3137 eac3_at_decoder_select="ac3_parser"
3138 gsm_ms_at_decoder_deps="audiotoolbox"
3139 ilbc_at_decoder_deps="audiotoolbox"
3140 mp1_at_decoder_deps="audiotoolbox"
3141 mp2_at_decoder_deps="audiotoolbox"
3142 mp3_at_decoder_deps="audiotoolbox"
3143 mp1_at_decoder_select="mpegaudioheader"
3144 mp2_at_decoder_select="mpegaudioheader"
3145 mp3_at_decoder_select="mpegaudioheader"
3146 pcm_alaw_at_decoder_deps="audiotoolbox"
3147 pcm_mulaw_at_decoder_deps="audiotoolbox"
3148 qdmc_at_decoder_deps="audiotoolbox"
3149 qdm2_at_decoder_deps="audiotoolbox"
3150 aac_at_encoder_deps="audiotoolbox"
3151 aac_at_encoder_select="audio_frame_queue"
3152 alac_at_encoder_deps="audiotoolbox"
3153 alac_at_encoder_select="audio_frame_queue"
3154 ilbc_at_encoder_deps="audiotoolbox"
3155 ilbc_at_encoder_select="audio_frame_queue"
3156 pcm_alaw_at_encoder_deps="audiotoolbox"
3157 pcm_alaw_at_encoder_select="audio_frame_queue"
3158 pcm_mulaw_at_encoder_deps="audiotoolbox"
3159 pcm_mulaw_at_encoder_select="audio_frame_queue"
3160 chromaprint_muxer_deps="chromaprint"
3161 h264_videotoolbox_encoder_deps="pthreads"
3162 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3163 hevc_videotoolbox_encoder_deps="pthreads"
3164 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3165 libaom_av1_decoder_deps="libaom"
3166 libaom_av1_encoder_deps="libaom"
3167 libaom_av1_encoder_select="extract_extradata_bsf"
3168 libaribb24_decoder_deps="libaribb24"
3169 libcelt_decoder_deps="libcelt"
3170 libcodec2_decoder_deps="libcodec2"
3171 libcodec2_encoder_deps="libcodec2"
3172 libdav1d_decoder_deps="libdav1d"
3173 libdavs2_decoder_deps="libdavs2"
3174 libfdk_aac_decoder_deps="libfdk_aac"
3175 libfdk_aac_encoder_deps="libfdk_aac"
3176 libfdk_aac_encoder_select="audio_frame_queue"
3177 libgme_demuxer_deps="libgme"
3178 libgsm_decoder_deps="libgsm"
3179 libgsm_encoder_deps="libgsm"
3180 libgsm_ms_decoder_deps="libgsm"
3181 libgsm_ms_encoder_deps="libgsm"
3182 libilbc_decoder_deps="libilbc"
3183 libilbc_encoder_deps="libilbc"
3184 libkvazaar_encoder_deps="libkvazaar"
3185 libmodplug_demuxer_deps="libmodplug"
3186 libmp3lame_encoder_deps="libmp3lame"
3187 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3188 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3189 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3190 libopencore_amrnb_encoder_select="audio_frame_queue"
3191 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3192 libopenh264_decoder_deps="libopenh264"
3193 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3194 libopenh264_encoder_deps="libopenh264"
3195 libopenjpeg_decoder_deps="libopenjpeg"
3196 libopenjpeg_encoder_deps="libopenjpeg"
3197 libopenmpt_demuxer_deps="libopenmpt"
3198 libopus_decoder_deps="libopus"
3199 libopus_encoder_deps="libopus"
3200 libopus_encoder_select="audio_frame_queue"
3201 librsvg_decoder_deps="librsvg"
3202 libshine_encoder_deps="libshine"
3203 libshine_encoder_select="audio_frame_queue"
3204 libspeex_decoder_deps="libspeex"
3205 libspeex_encoder_deps="libspeex"
3206 libspeex_encoder_select="audio_frame_queue"
3207 libtheora_encoder_deps="libtheora"
3208 libtwolame_encoder_deps="libtwolame"
3209 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3210 libvorbis_decoder_deps="libvorbis"
3211 libvorbis_encoder_deps="libvorbis libvorbisenc"
3212 libvorbis_encoder_select="audio_frame_queue"
3213 libvpx_vp8_decoder_deps="libvpx"
3214 libvpx_vp8_encoder_deps="libvpx"
3215 libvpx_vp9_decoder_deps="libvpx"
3216 libvpx_vp9_encoder_deps="libvpx"
3217 libwavpack_encoder_deps="libwavpack"
3218 libwavpack_encoder_select="audio_frame_queue"
3219 libwebp_encoder_deps="libwebp"
3220 libwebp_anim_encoder_deps="libwebp"
3221 libx262_encoder_deps="libx262"
3222 libx264_encoder_deps="libx264"
3223 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3224 libx264rgb_encoder_select="libx264_encoder"
3225 libx265_encoder_deps="libx265"
3226 libxavs_encoder_deps="libxavs"
3227 libxavs2_encoder_deps="libxavs2"
3228 libxvid_encoder_deps="libxvid"
3229 libzvbi_teletext_decoder_deps="libzvbi"
3230 vapoursynth_demuxer_deps="vapoursynth"
3231 videotoolbox_suggest="coreservices"
3232 videotoolbox_deps="corefoundation coremedia corevideo"
3233 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3234
3235 # demuxers / muxers
3236 ac3_demuxer_select="ac3_parser"
3237 act_demuxer_select="riffdec"
3238 aiff_muxer_select="iso_media"
3239 asf_demuxer_select="riffdec"
3240 asf_o_demuxer_select="riffdec"
3241 asf_muxer_select="riffenc"
3242 asf_stream_muxer_select="asf_muxer"
3243 avi_demuxer_select="iso_media riffdec exif"
3244 avi_muxer_select="riffenc"
3245 caf_demuxer_select="iso_media riffdec"
3246 caf_muxer_select="iso_media"
3247 dash_muxer_select="mp4_muxer"
3248 dash_demuxer_deps="libxml2"
3249 dirac_demuxer_select="dirac_parser"
3250 dts_demuxer_select="dca_parser"
3251 dtshd_demuxer_select="dca_parser"
3252 dv_demuxer_select="dvprofile"
3253 dv_muxer_select="dvprofile"
3254 dxa_demuxer_select="riffdec"
3255 eac3_demuxer_select="ac3_parser"
3256 f4v_muxer_select="mov_muxer"
3257 fifo_muxer_deps="threads"
3258 flac_demuxer_select="flac_parser"
3259 hds_muxer_select="flv_muxer"
3260 hls_muxer_select="mpegts_muxer"
3261 hls_muxer_suggest="gcrypt openssl"
3262 image2_alias_pix_demuxer_select="image2_demuxer"
3263 image2_brender_pix_demuxer_select="image2_demuxer"
3264 ipod_muxer_select="mov_muxer"
3265 ismv_muxer_select="mov_muxer"
3266 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3267 matroska_audio_muxer_select="matroska_muxer"
3268 matroska_demuxer_select="iso_media riffdec"
3269 matroska_demuxer_suggest="bzlib lzo zlib"
3270 matroska_muxer_select="iso_media riffenc"
3271 mmf_muxer_select="riffenc"
3272 mov_demuxer_select="iso_media riffdec"
3273 mov_demuxer_suggest="zlib"
3274 mov_muxer_select="iso_media riffenc rtpenc_chain"
3275 mp3_demuxer_select="mpegaudio_parser"
3276 mp3_muxer_select="mpegaudioheader"
3277 mp4_muxer_select="mov_muxer"
3278 mpegts_demuxer_select="iso_media"
3279 mpegts_muxer_select="adts_muxer latm_muxer"
3280 mpegtsraw_demuxer_select="mpegts_demuxer"
3281 mxf_muxer_select="golomb"
3282 mxf_d10_muxer_select="mxf_muxer"
3283 mxf_opatom_muxer_select="mxf_muxer"
3284 nut_muxer_select="riffenc"
3285 nuv_demuxer_select="riffdec"
3286 oga_muxer_select="ogg_muxer"
3287 ogg_demuxer_select="dirac_parse"
3288 ogv_muxer_select="ogg_muxer"
3289 opus_muxer_select="ogg_muxer"
3290 psp_muxer_select="mov_muxer"
3291 rtp_demuxer_select="sdp_demuxer"
3292 rtp_muxer_select="golomb jpegtables"
3293 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3294 rtsp_demuxer_select="http_protocol rtpdec"
3295 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3296 sap_demuxer_select="sdp_demuxer"
3297 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3298 sdp_demuxer_select="rtpdec"
3299 smoothstreaming_muxer_select="ismv_muxer"
3300 spdif_demuxer_select="adts_header"
3301 spdif_muxer_select="adts_header"
3302 spx_muxer_select="ogg_muxer"
3303 swf_demuxer_suggest="zlib"
3304 tak_demuxer_select="tak_parser"
3305 tg2_muxer_select="mov_muxer"
3306 tgp_muxer_select="mov_muxer"
3307 vobsub_demuxer_select="mpegps_demuxer"
3308 w64_demuxer_select="wav_demuxer"
3309 w64_muxer_select="wav_muxer"
3310 wav_demuxer_select="riffdec"
3311 wav_muxer_select="riffenc"
3312 webm_muxer_select="iso_media riffenc"
3313 webm_dash_manifest_demuxer_select="matroska_demuxer"
3314 wtv_demuxer_select="mpegts_demuxer riffdec"
3315 wtv_muxer_select="mpegts_muxer riffenc"
3316 xmv_demuxer_select="riffdec"
3317 xwma_demuxer_select="riffdec"
3318
3319 # indevs / outdevs
3320 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3321 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3322 alsa_indev_deps="alsa"
3323 alsa_outdev_deps="alsa"
3324 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3325 avfoundation_indev_suggest="coregraphics applicationservices"
3326 avfoundation_indev_extralibs="-framework Foundation"
3327 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3328 caca_outdev_deps="libcaca"
3329 decklink_deps_any="libdl LoadLibrary"
3330 decklink_indev_deps="decklink threads"
3331 decklink_indev_extralibs="-lstdc++"
3332 decklink_outdev_deps="decklink threads"
3333 decklink_outdev_suggest="libklvanc"
3334 decklink_outdev_extralibs="-lstdc++"
3335 dshow_indev_deps="IBaseFilter"
3336 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3337 fbdev_indev_deps="linux_fb_h"
3338 fbdev_outdev_deps="linux_fb_h"
3339 gdigrab_indev_deps="CreateDIBSection"
3340 gdigrab_indev_extralibs="-lgdi32"
3341 gdigrab_indev_select="bmp_decoder"
3342 iec61883_indev_deps="libiec61883"
3343 jack_indev_deps="libjack"
3344 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3345 kmsgrab_indev_deps="libdrm"
3346 lavfi_indev_deps="avfilter"
3347 libcdio_indev_deps="libcdio"
3348 libdc1394_indev_deps="libdc1394"
3349 openal_indev_deps="openal"
3350 opengl_outdev_deps="opengl"
3351 opengl_outdev_suggest="sdl2"
3352 oss_indev_deps_any="sys_soundcard_h"
3353 oss_outdev_deps_any="sys_soundcard_h"
3354 pulse_indev_deps="libpulse"
3355 pulse_outdev_deps="libpulse"
3356 sdl2_outdev_deps="sdl2"
3357 sndio_indev_deps="sndio"
3358 sndio_outdev_deps="sndio"
3359 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3360 v4l2_indev_suggest="libv4l2"
3361 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3362 v4l2_outdev_suggest="libv4l2"
3363 vfwcap_indev_deps="vfw32 vfwcap_defines"
3364 xcbgrab_indev_deps="libxcb"
3365 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3366 xv_outdev_deps="xlib"
3367
3368 # protocols
3369 async_protocol_deps="threads"
3370 bluray_protocol_deps="libbluray"
3371 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3372 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3373 ffrtmpcrypt_protocol_select="tcp_protocol"
3374 ffrtmphttp_protocol_conflict="librtmp_protocol"
3375 ffrtmphttp_protocol_select="http_protocol"
3376 ftp_protocol_select="tcp_protocol"
3377 gopher_protocol_select="network"
3378 http_protocol_select="tcp_protocol"
3379 http_protocol_suggest="zlib"
3380 httpproxy_protocol_select="tcp_protocol"
3381 httpproxy_protocol_suggest="zlib"
3382 https_protocol_select="tls_protocol"
3383 https_protocol_suggest="zlib"
3384 icecast_protocol_select="http_protocol"
3385 mmsh_protocol_select="http_protocol"
3386 mmst_protocol_select="network"
3387 rtmp_protocol_conflict="librtmp_protocol"
3388 rtmp_protocol_select="tcp_protocol"
3389 rtmp_protocol_suggest="zlib"
3390 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3391 rtmpe_protocol_suggest="zlib"
3392 rtmps_protocol_conflict="librtmp_protocol"
3393 rtmps_protocol_select="tls_protocol"
3394 rtmps_protocol_suggest="zlib"
3395 rtmpt_protocol_select="ffrtmphttp_protocol"
3396 rtmpt_protocol_suggest="zlib"
3397 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3398 rtmpte_protocol_suggest="zlib"
3399 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3400 rtmpts_protocol_suggest="zlib"
3401 rtp_protocol_select="udp_protocol"
3402 schannel_conflict="openssl gnutls libtls mbedtls"
3403 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3404 sctp_protocol_select="network"
3405 securetransport_conflict="openssl gnutls libtls mbedtls"
3406 srtp_protocol_select="rtp_protocol srtp"
3407 tcp_protocol_select="network"
3408 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3409 tls_protocol_select="tcp_protocol"
3410 udp_protocol_select="network"
3411 udplite_protocol_select="network"
3412 unix_protocol_deps="sys_un_h"
3413 unix_protocol_select="network"
3414
3415 # external library protocols
3416 librtmp_protocol_deps="librtmp"
3417 librtmpe_protocol_deps="librtmp"
3418 librtmps_protocol_deps="librtmp"
3419 librtmpt_protocol_deps="librtmp"
3420 librtmpte_protocol_deps="librtmp"
3421 libsmbclient_protocol_deps="libsmbclient gplv3"
3422 libsrt_protocol_deps="libsrt"
3423 libsrt_protocol_select="network"
3424 libssh_protocol_deps="libssh"
3425 libtls_conflict="openssl gnutls mbedtls"
3426 libzmq_protocol_deps="libzmq"
3427 libzmq_protocol_select="network"
3428
3429 # filters
3430 afftdn_filter_deps="avcodec"
3431 afftdn_filter_select="fft"
3432 afftfilt_filter_deps="avcodec"
3433 afftfilt_filter_select="fft"
3434 afir_filter_deps="avcodec"
3435 afir_filter_select="fft"
3436 amovie_filter_deps="avcodec avformat"
3437 aresample_filter_deps="swresample"
3438 asr_filter_deps="pocketsphinx"
3439 ass_filter_deps="libass"
3440 atempo_filter_deps="avcodec"
3441 atempo_filter_select="rdft"
3442 avgblur_opencl_filter_deps="opencl"
3443 azmq_filter_deps="libzmq"
3444 blackframe_filter_deps="gpl"
3445 bm3d_filter_deps="avcodec"
3446 bm3d_filter_select="dct"
3447 boxblur_filter_deps="gpl"
3448 boxblur_opencl_filter_deps="opencl gpl"
3449 bs2b_filter_deps="libbs2b"
3450 colorkey_opencl_filter_deps="opencl"
3451 colormatrix_filter_deps="gpl"
3452 convolution_opencl_filter_deps="opencl"
3453 convolve_filter_deps="avcodec"
3454 convolve_filter_select="fft"
3455 coreimage_filter_deps="coreimage appkit"
3456 coreimage_filter_extralibs="-framework OpenGL"
3457 coreimagesrc_filter_deps="coreimage appkit"
3458 coreimagesrc_filter_extralibs="-framework OpenGL"
3459 cover_rect_filter_deps="avcodec avformat gpl"
3460 cropdetect_filter_deps="gpl"
3461 deconvolve_filter_deps="avcodec"
3462 deconvolve_filter_select="fft"
3463 deinterlace_qsv_filter_deps="libmfx"
3464 deinterlace_vaapi_filter_deps="vaapi"
3465 delogo_filter_deps="gpl"
3466 denoise_vaapi_filter_deps="vaapi"
3467 derain_filter_select="dnn"
3468 deshake_filter_select="pixelutils"
3469 deshake_opencl_filter_deps="opencl"
3470 dilation_opencl_filter_deps="opencl"
3471 drawtext_filter_deps="libfreetype"
3472 drawtext_filter_suggest="libfontconfig libfribidi"
3473 elbg_filter_deps="avcodec"
3474 eq_filter_deps="gpl"
3475 erosion_opencl_filter_deps="opencl"
3476 fftfilt_filter_deps="avcodec"
3477 fftfilt_filter_select="rdft"
3478 fftdnoiz_filter_deps="avcodec"
3479 fftdnoiz_filter_select="fft"
3480 find_rect_filter_deps="avcodec avformat gpl"
3481 firequalizer_filter_deps="avcodec"
3482 firequalizer_filter_select="rdft"
3483 flite_filter_deps="libflite"
3484 framerate_filter_select="scene_sad"
3485 freezedetect_filter_select="scene_sad"
3486 frei0r_filter_deps="frei0r libdl"
3487 frei0r_src_filter_deps="frei0r libdl"
3488 fspp_filter_deps="gpl"
3489 geq_filter_deps="gpl"
3490 histeq_filter_deps="gpl"
3491 hqdn3d_filter_deps="gpl"
3492 interlace_filter_deps="gpl"
3493 kerndeint_filter_deps="gpl"
3494 ladspa_filter_deps="ladspa libdl"
3495 lensfun_filter_deps="liblensfun version3"
3496 lv2_filter_deps="lv2"
3497 mcdeint_filter_deps="avcodec gpl"
3498 movie_filter_deps="avcodec avformat"
3499 mpdecimate_filter_deps="gpl"
3500 mpdecimate_filter_select="pixelutils"
3501 minterpolate_filter_select="scene_sad"
3502 mptestsrc_filter_deps="gpl"
3503 negate_filter_deps="lut_filter"
3504 nlmeans_opencl_filter_deps="opencl"
3505 nnedi_filter_deps="gpl"
3506 ocr_filter_deps="libtesseract"
3507 ocv_filter_deps="libopencv"
3508 openclsrc_filter_deps="opencl"
3509 overlay_opencl_filter_deps="opencl"
3510 overlay_qsv_filter_deps="libmfx"
3511 overlay_qsv_filter_select="qsvvpp"
3512 owdenoise_filter_deps="gpl"
3513 pan_filter_deps="swresample"
3514 perspective_filter_deps="gpl"
3515 phase_filter_deps="gpl"
3516 pp7_filter_deps="gpl"
3517 pp_filter_deps="gpl postproc"
3518 prewitt_opencl_filter_deps="opencl"
3519 procamp_vaapi_filter_deps="vaapi"
3520 program_opencl_filter_deps="opencl"
3521 pullup_filter_deps="gpl"
3522 removelogo_filter_deps="avcodec avformat swscale"
3523 repeatfields_filter_deps="gpl"
3524 resample_filter_deps="avresample"
3525 roberts_opencl_filter_deps="opencl"
3526 rubberband_filter_deps="librubberband"
3527 sab_filter_deps="gpl swscale"
3528 scale2ref_filter_deps="swscale"
3529 scale_filter_deps="swscale"
3530 scale_qsv_filter_deps="libmfx"
3531 select_filter_select="scene_sad"
3532 sharpness_vaapi_filter_deps="vaapi"
3533 showcqt_filter_deps="avcodec avformat swscale"
3534 showcqt_filter_suggest="libfontconfig libfreetype"
3535 showcqt_filter_select="fft"
3536 showfreqs_filter_deps="avcodec"
3537 showfreqs_filter_select="fft"
3538 showspectrum_filter_deps="avcodec"
3539 showspectrum_filter_select="fft"
3540 showspectrumpic_filter_deps="avcodec"
3541 showspectrumpic_filter_select="fft"
3542 signature_filter_deps="gpl avcodec avformat"
3543 smartblur_filter_deps="gpl swscale"
3544 sobel_opencl_filter_deps="opencl"
3545 sofalizer_filter_deps="libmysofa avcodec"
3546 sofalizer_filter_select="fft"
3547 spectrumsynth_filter_deps="avcodec"
3548 spectrumsynth_filter_select="fft"
3549 spp_filter_deps="gpl avcodec"
3550 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3551 sr_filter_deps="avformat swscale"
3552 sr_filter_select="dnn"
3553 stereo3d_filter_deps="gpl"
3554 subtitles_filter_deps="avformat avcodec libass"
3555 super2xsai_filter_deps="gpl"
3556 pixfmts_super2xsai_test_deps="super2xsai_filter"
3557 tinterlace_filter_deps="gpl"
3558 tinterlace_merge_test_deps="tinterlace_filter"
3559 tinterlace_pad_test_deps="tinterlace_filter"
3560 tonemap_filter_deps="const_nan"
3561 tonemap_opencl_filter_deps="opencl const_nan"
3562 transpose_opencl_filter_deps="opencl"
3563 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3564 unsharp_opencl_filter_deps="opencl"
3565 uspp_filter_deps="gpl avcodec"
3566 vaguedenoiser_filter_deps="gpl"
3567 vidstabdetect_filter_deps="libvidstab"
3568 vidstabtransform_filter_deps="libvidstab"
3569 libvmaf_filter_deps="libvmaf pthreads"
3570 zmq_filter_deps="libzmq"
3571 zoompan_filter_deps="swscale"
3572 zscale_filter_deps="libzimg const_nan"
3573 scale_vaapi_filter_deps="vaapi"
3574 vpp_qsv_filter_deps="libmfx"
3575 vpp_qsv_filter_select="qsvvpp"
3576 yadif_cuda_filter_deps="ffnvcodec"
3577 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3578
3579 # examples
3580 avio_dir_cmd_deps="avformat avutil"
3581 avio_reading_deps="avformat avcodec avutil"
3582 decode_audio_example_deps="avcodec avutil"
3583 decode_video_example_deps="avcodec avutil"
3584 demuxing_decoding_example_deps="avcodec avformat avutil"
3585 encode_audio_example_deps="avcodec avutil"
3586 encode_video_example_deps="avcodec avutil"
3587 extract_mvs_example_deps="avcodec avformat avutil"
3588 filter_audio_example_deps="avfilter avutil"
3589 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3590 filtering_video_example_deps="avfilter avcodec avformat avutil"
3591 http_multiclient_example_deps="avformat avutil fork"
3592 hw_decode_example_deps="avcodec avformat avutil"
3593 metadata_example_deps="avformat avutil"
3594 muxing_example_deps="avcodec avformat avutil swscale"
3595 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3596 remuxing_example_deps="avcodec avformat avutil"
3597 resampling_audio_example_deps="avutil swresample"
3598 scaling_video_example_deps="avutil swscale"
3599 transcode_aac_example_deps="avcodec avformat swresample"
3600 transcoding_example_deps="avfilter avcodec avformat avutil"
3601 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3602 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3603
3604 # EXTRALIBS_LIST
3605 cpu_init_extralibs="pthreads_extralibs"
3606 cws2fws_extralibs="zlib_extralibs"
3607
3608 # libraries, in any order
3609 avcodec_deps="avutil"
3610 avcodec_suggest="libm"
3611 avcodec_select="null_bsf"
3612 avdevice_deps="avformat avcodec avutil"
3613 avdevice_suggest="libm"
3614 avfilter_deps="avutil"
3615 avfilter_suggest="libm"
3616 avformat_deps="avcodec avutil"
3617 avformat_suggest="libm network zlib"
3618 avresample_deps="avutil"
3619 avresample_suggest="libm"
3620 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3621 postproc_deps="avutil gpl"
3622 postproc_suggest="libm"
3623 swresample_deps="avutil"
3624 swresample_suggest="libm libsoxr"
3625 swscale_deps="avutil"
3626 swscale_suggest="libm"
3627
3628 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3629 avfilter_extralibs="pthreads_extralibs"
3630 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3631
3632 # programs
3633 ffmpeg_deps="avcodec avfilter avformat"
3634 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3635                hflip_filter null_filter
3636                transpose_filter trim_filter vflip_filter"
3637 ffmpeg_suggest="ole32 psapi shell32"
3638 ffplay_deps="avcodec avformat swscale swresample sdl2"
3639 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3640 ffplay_suggest="shell32"
3641 ffprobe_deps="avcodec avformat"
3642 ffprobe_suggest="shell32"
3643
3644 # documentation
3645 podpages_deps="perl"
3646 manpages_deps="perl pod2man"
3647 htmlpages_deps="perl"
3648 htmlpages_deps_any="makeinfo_html texi2html"
3649 txtpages_deps="perl makeinfo"
3650 doc_deps_any="manpages htmlpages podpages txtpages"
3651
3652 # default parameters
3653
3654 logfile="ffbuild/config.log"
3655
3656 # installation paths
3657 prefix_default="/usr/local"
3658 bindir_default='${prefix}/bin'
3659 datadir_default='${prefix}/share/ffmpeg'
3660 docdir_default='${prefix}/share/doc/ffmpeg'
3661 incdir_default='${prefix}/include'
3662 libdir_default='${prefix}/lib'
3663 mandir_default='${prefix}/share/man'
3664
3665 # toolchain
3666 ar_default="ar"
3667 cc_default="gcc"
3668 cxx_default="g++"
3669 host_cc_default="gcc"
3670 doxygen_default="doxygen"
3671 install="install"
3672 ln_s_default="ln -s -f"
3673 nm_default="nm -g"
3674 pkg_config_default=pkg-config
3675 ranlib_default="ranlib"
3676 strip_default="strip"
3677 version_script='--version-script'
3678 objformat="elf32"
3679 x86asmexe_default="nasm"
3680 windres_default="windres"
3681 striptype="direct"
3682
3683 # OS
3684 target_os_default=$(tolower $(uname -s))
3685 host_os=$target_os_default
3686
3687 # machine
3688 if test "$target_os_default" = aix; then
3689     arch_default=$(uname -p)
3690     strip_default="strip -X32_64"
3691     nm_default="nm -g -X32_64"
3692 else
3693     arch_default=$(uname -m)
3694 fi
3695 cpu="generic"
3696 intrinsics="none"
3697
3698 # configurable options
3699 enable $PROGRAM_LIST
3700 enable $DOCUMENT_LIST
3701 enable $EXAMPLE_LIST
3702 enable $(filter_out avresample $LIBRARY_LIST)
3703 enable stripping
3704
3705 enable asm
3706 enable debug
3707 enable doc
3708 enable faan faandct faanidct
3709 enable optimizations
3710 enable runtime_cpudetect
3711 enable safe_bitstream_reader
3712 enable static
3713 enable swscale_alpha
3714 enable valgrind_backtrace
3715
3716 sws_max_filter_size_default=256
3717 set_default sws_max_filter_size
3718
3719 # internal components are enabled by default
3720 enable $EXTRALIBS_LIST
3721
3722 # Avoid external, non-system, libraries getting enabled by dependency resolution
3723 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3724
3725 # build settings
3726 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3727 LIBPREF="lib"
3728 LIBSUF=".a"
3729 FULLNAME='$(NAME)$(BUILDSUF)'
3730 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3731 SLIBPREF="lib"
3732 SLIBSUF=".so"
3733 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3734 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3735 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3736 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3737 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3738 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3739 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3740
3741 asflags_filter=echo
3742 cflags_filter=echo
3743 ldflags_filter=echo
3744
3745 AS_C='-c'
3746 AS_O='-o $@'
3747 CC_C='-c'
3748 CC_E='-E -o $@'
3749 CC_O='-o $@'
3750 CXX_C='-c'
3751 CXX_O='-o $@'
3752 OBJCC_C='-c'
3753 OBJCC_E='-E -o $@'
3754 OBJCC_O='-o $@'
3755 X86ASM_O='-o $@'
3756 LD_O='-o $@'
3757 LD_LIB='-l%'
3758 LD_PATH='-L'
3759 HOSTCC_C='-c'
3760 HOSTCC_E='-E -o $@'
3761 HOSTCC_O='-o $@'
3762 HOSTLD_O='-o $@'
3763 NVCC_C='-c'
3764 NVCC_O='-o $@'
3765
3766 host_extralibs='-lm'
3767 host_cflags_filter=echo
3768 host_ldflags_filter=echo
3769
3770 target_path='$(CURDIR)'
3771
3772 # since the object filename is not given with the -MM flag, the compiler
3773 # is only able to print the basename, and we must add the path ourselves
3774 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3775 DEPFLAGS='-MM'
3776
3777 mkdir -p ffbuild
3778
3779 # find source path
3780 if test -f configure; then
3781     source_path=.
3782 elif test -f src/configure; then
3783     source_path=src
3784 else
3785     source_path=$(cd $(dirname "$0"); pwd)
3786     case "$source_path" in
3787         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3788     esac
3789     test -e "$source_path/config.h" &&
3790         die "Out of tree builds are impossible with config.h in source dir."
3791 fi
3792
3793 for v in "$@"; do
3794     r=${v#*=}
3795     l=${v%"$r"}
3796     r=$(sh_quote "$r")
3797     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3798 done
3799
3800 find_things_extern(){
3801     thing=$1
3802     pattern=$2
3803     file=$source_path/$3
3804     out=${4:-$thing}
3805     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3806 }
3807
3808 find_filters_extern(){
3809     file=$source_path/$1
3810     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3811 }
3812
3813 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3814 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3815 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3816 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3817 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3818 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3819 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3820 CODEC_LIST="
3821     $ENCODER_LIST
3822     $DECODER_LIST
3823 "
3824 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3825 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3826 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3827 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3828
3829 AVCODEC_COMPONENTS_LIST="
3830     $BSF_LIST
3831     $DECODER_LIST
3832     $ENCODER_LIST
3833     $HWACCEL_LIST
3834     $PARSER_LIST
3835 "
3836
3837 AVDEVICE_COMPONENTS_LIST="
3838     $INDEV_LIST
3839     $OUTDEV_LIST
3840 "
3841
3842 AVFILTER_COMPONENTS_LIST="
3843     $FILTER_LIST
3844 "
3845
3846 AVFORMAT_COMPONENTS_LIST="
3847     $DEMUXER_LIST
3848     $MUXER_LIST
3849     $PROTOCOL_LIST
3850 "
3851
3852 ALL_COMPONENTS="
3853     $AVCODEC_COMPONENTS_LIST
3854     $AVDEVICE_COMPONENTS_LIST
3855     $AVFILTER_COMPONENTS_LIST
3856     $AVFORMAT_COMPONENTS_LIST
3857 "
3858
3859 for n in $COMPONENT_LIST; do
3860     v=$(toupper ${n%s})_LIST
3861     eval enable \$$v
3862     eval ${n}_if_any="\$$v"
3863 done
3864
3865 enable $ARCH_EXT_LIST
3866
3867 die_unknown(){
3868     echo "Unknown option \"$1\"."
3869     echo "See $0 --help for available options."
3870     exit 1
3871 }
3872
3873 print_in_columns() {
3874     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3875     {
3876         num_cols = width > col_width ? int(width / col_width) : 1;
3877         num_rows = int((NF + num_cols-1) / num_cols);
3878         y = x = 1;
3879         for (y = 1; y <= num_rows; y++) {
3880             i = y;
3881             for (x = 1; x <= num_cols; x++) {
3882                 if (i <= NF) {
3883                   line = sprintf("%s%-" col_width "s", line, $i);
3884                 }
3885                 i = i + num_rows;
3886             }
3887             print line; line = "";
3888         }
3889     }' | sed 's/ *$//'
3890 }
3891
3892 show_list() {
3893     suffix=_$1
3894     shift
3895     echo $* | sed s/$suffix//g | print_in_columns
3896     exit 0
3897 }
3898
3899 rand_list(){
3900     IFS=', '
3901     set -- $*
3902     unset IFS
3903     for thing; do
3904         comp=${thing%:*}
3905         prob=${thing#$comp}
3906         prob=${prob#:}
3907         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3908         echo "prob ${prob:-0.5}"
3909         printf '%s\n' $comp
3910     done
3911 }
3912
3913 do_random(){
3914     action=$1
3915     shift
3916     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3917     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3918 }
3919
3920 for opt do
3921     optval="${opt#*=}"
3922     case "$opt" in
3923         --extra-ldflags=*)
3924             add_ldflags $optval
3925         ;;
3926         --extra-ldexeflags=*)
3927             add_ldexeflags $optval
3928         ;;
3929         --extra-ldsoflags=*)
3930             add_ldsoflags $optval
3931         ;;
3932         --extra-ldlibflags=*)
3933             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3934                  "removed in the future. Use --extra-ldsoflags instead."
3935             add_ldsoflags $optval
3936         ;;
3937         --extra-libs=*)
3938             add_extralibs $optval
3939         ;;
3940         --disable-devices)
3941             disable $INDEV_LIST $OUTDEV_LIST
3942         ;;
3943         --enable-debug=*)
3944             debuglevel="$optval"
3945         ;;
3946         --disable-programs)
3947             disable $PROGRAM_LIST
3948         ;;
3949         --disable-everything)
3950             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3951         ;;
3952         --disable-all)
3953             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3954             disable $LIBRARY_LIST $PROGRAM_LIST doc
3955             enable avutil
3956         ;;
3957         --enable-random|--disable-random)
3958             action=${opt%%-random}
3959             do_random ${action#--} $COMPONENT_LIST
3960         ;;
3961         --enable-random=*|--disable-random=*)
3962             action=${opt%%-random=*}
3963             do_random ${action#--} $optval
3964         ;;
3965         --enable-sdl)
3966             enable sdl2
3967         ;;
3968         --enable-*=*|--disable-*=*)
3969             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3970             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3971             eval list=\$$(toupper $thing)_LIST
3972             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3973             list=$(filter "$name" $list)
3974             [ "$list" = "" ] && warn "Option $opt did not match anything"
3975             test $action = enable && warn_if_gets_disabled $list
3976             $action $list
3977         ;;
3978         --enable-yasm|--disable-yasm)
3979             warn "The ${opt} option is only provided for compatibility and will be\n"\
3980                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3981             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3982         ;;
3983         --yasmexe=*)
3984             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3985                  "removed in the future. Use --x86asmexe instead."
3986             x86asmexe="$optval"
3987         ;;
3988         --enable-?*|--disable-?*)
3989             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3990             if is_in $option $COMPONENT_LIST; then
3991                 test $action = disable && action=unset
3992                 eval $action \$$(toupper ${option%s})_LIST
3993             elif is_in $option $CMDLINE_SELECT; then
3994                 $action $option
3995             else
3996                 die_unknown $opt
3997             fi
3998         ;;
3999         --list-*)
4000             NAME="${opt#--list-}"
4001             is_in $NAME $COMPONENT_LIST || die_unknown $opt
4002             NAME=${NAME%s}
4003             eval show_list $NAME \$$(toupper $NAME)_LIST
4004         ;;
4005         --help|-h) show_help
4006         ;;
4007         --quiet|-q) quiet=yes
4008         ;;
4009         --fatal-warnings) enable fatal_warnings
4010         ;;
4011         --libfuzzer=*)
4012             libfuzzer_path="$optval"
4013         ;;
4014         *)
4015             optname="${opt%%=*}"
4016             optname="${optname#--}"
4017             optname=$(echo "$optname" | sed 's/-/_/g')
4018             if is_in $optname $CMDLINE_SET; then
4019                 eval $optname='$optval'
4020             elif is_in $optname $CMDLINE_APPEND; then
4021                 append $optname "$optval"
4022             else
4023                 die_unknown $opt
4024             fi
4025         ;;
4026     esac
4027 done
4028
4029 for e in $env; do
4030     eval "export $e"
4031 done
4032
4033 if disabled autodetect; then
4034
4035     # Unless iconv is explicitely disabled by the user, we still want to probe
4036     # for the iconv from the libc.
4037     disabled iconv || enable libc_iconv
4038
4039     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4040     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4041 fi
4042 # Mark specifically enabled, but normally autodetected libraries as requested.
4043 for lib in $AUTODETECT_LIBS; do
4044     enabled $lib && request $lib
4045 done
4046 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4047 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4048 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4049
4050 disabled logging && logfile=/dev/null
4051
4052 # command line configuration sanity checks
4053
4054 # we need to build at least one lib type
4055 if ! enabled_any static shared; then
4056     cat <<EOF
4057 At least one library type must be built.
4058 Specify --enable-static to build the static libraries or --enable-shared to
4059 build the shared libraries as well. To only build the shared libraries specify
4060 --disable-static in addition to --enable-shared.
4061 EOF
4062     exit 1
4063 fi
4064
4065 die_license_disabled() {
4066     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4067 }
4068
4069 die_license_disabled_gpl() {
4070     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4071 }
4072
4073 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4074 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4075
4076 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4077 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4078
4079 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4080
4081 if enabled nonfree; then
4082     license="nonfree and unredistributable"
4083 elif enabled gplv3; then
4084     license="GPL version 3 or later"
4085 elif enabled lgplv3; then
4086     license="LGPL version 3 or later"
4087 elif enabled gpl; then
4088     license="GPL version 2 or later"
4089 else
4090     license="LGPL version 2.1 or later"
4091 fi
4092
4093 enabled_all gnutls openssl &&
4094     die "GnuTLS and OpenSSL must not be enabled at the same time."
4095
4096 enabled_all gnutls mbedtls &&
4097     die "GnuTLS and mbedTLS must not be enabled at the same time."
4098
4099 enabled_all openssl mbedtls &&
4100     die "OpenSSL and mbedTLS must not be enabled at the same time."
4101
4102 # Disable all the library-specific components if the library itself
4103 # is disabled, see AVCODEC_LIST and following _LIST variables.
4104
4105 disable_components(){
4106     disabled ${1} && disable $(
4107         eval components="\$$(toupper ${1})_COMPONENTS"
4108         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4109     )
4110 }
4111
4112 map 'disable_components $v' $LIBRARY_LIST
4113
4114 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4115 set >> $logfile
4116
4117 test -n "$valgrind" && toolchain="valgrind-memcheck"
4118
4119 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4120     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4121     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4122 }
4123
4124 case "$toolchain" in
4125     *-asan)
4126         cc_default="${toolchain%-asan}"
4127         add_cflags  -fsanitize=address
4128         add_ldflags -fsanitize=address
4129     ;;
4130     *-msan)
4131         cc_default="${toolchain%-msan}"
4132         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4133         add_ldflags -fsanitize=memory
4134     ;;
4135     *-tsan)
4136         cc_default="${toolchain%-tsan}"
4137         add_cflags  -fsanitize=thread
4138         add_ldflags -fsanitize=thread
4139         case "$toolchain" in
4140             gcc-tsan)
4141                 add_cflags  -fPIC
4142                 add_ldflags -fPIC
4143                 ;;
4144         esac
4145     ;;
4146     *-usan)
4147         cc_default="${toolchain%-usan}"
4148         add_cflags  -fsanitize=undefined
4149         add_ldflags -fsanitize=undefined
4150     ;;
4151     valgrind-*)
4152         target_exec_default="valgrind"
4153         case "$toolchain" in
4154             valgrind-massif)
4155                 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"
4156                 ;;
4157             valgrind-memcheck)
4158                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4159                 ;;
4160         esac
4161     ;;
4162     msvc)
4163         # Check whether the current MSVC version needs the C99 converter.
4164         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4165         # support enough of C99 to build ffmpeg. Default to the new
4166         # behaviour if the regexp was unable to match anything, since this
4167         # successfully parses the version number of existing supported
4168         # versions that require the converter (MSVC 2010 and 2012).
4169         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4170         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4171             cc_default="cl.exe"
4172             cxx_default="cl.exe"
4173         else
4174             die "Unsupported MSVC version (2013 or newer required)"
4175         fi
4176         ld_default="$source_path/compat/windows/mslink"
4177         nm_default="dumpbin.exe -symbols"
4178         ar_default="lib.exe"
4179         case "$arch" in
4180         aarch64|arm64)
4181             as_default="armasm64.exe"
4182             ;;
4183         arm*)
4184             as_default="armasm.exe"
4185             ;;
4186         esac
4187         target_os_default="win32"
4188         # Use a relative path for TMPDIR. This makes sure all the
4189         # ffconf temp files are written with a relative path, avoiding
4190         # issues with msys/win32 path conversion for MSVC parameters
4191         # such as -Fo<file> or -out:<file>.
4192         TMPDIR=.
4193     ;;
4194     icl)
4195         cc_default="icl"
4196         ld_default="xilink"
4197         nm_default="dumpbin -symbols"
4198         ar_default="xilib"
4199         target_os_default="win32"
4200         TMPDIR=.
4201     ;;
4202     gcov)
4203         add_cflags  -fprofile-arcs -ftest-coverage
4204         add_ldflags -fprofile-arcs -ftest-coverage
4205     ;;
4206     llvm-cov)
4207         add_cflags -fprofile-arcs -ftest-coverage
4208         add_ldflags --coverage
4209     ;;
4210     hardened)
4211         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4212         add_cflags   -fno-strict-overflow -fstack-protector-all
4213         add_ldflags  -Wl,-z,relro -Wl,-z,now
4214         add_cflags   -fPIE
4215         add_ldexeflags -fPIE -pie
4216     ;;
4217     ?*)
4218         die "Unknown toolchain $toolchain"
4219     ;;
4220 esac
4221
4222 if test -n "$cross_prefix"; then
4223     test -n "$arch" && test -n "$target_os" ||
4224         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4225     enable cross_compile
4226 fi
4227
4228 set_default target_os
4229 if test "$target_os" = android; then
4230     cc_default="clang"
4231 fi
4232
4233 ar_default="${cross_prefix}${ar_default}"
4234 cc_default="${cross_prefix}${cc_default}"
4235 cxx_default="${cross_prefix}${cxx_default}"
4236 nm_default="${cross_prefix}${nm_default}"
4237 pkg_config_default="${cross_prefix}${pkg_config_default}"
4238 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4239     ranlib_default="${cross_prefix}${ranlib_default} -D"
4240 else
4241     ranlib_default="${cross_prefix}${ranlib_default}"
4242 fi
4243 strip_default="${cross_prefix}${strip_default}"
4244 windres_default="${cross_prefix}${windres_default}"
4245
4246 sysinclude_default="${sysroot}/usr/include"
4247
4248 if enabled cuda_sdk; then
4249     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4250     enable cuda_nvcc
4251 fi
4252
4253 if enabled cuda_nvcc; then
4254     nvcc_default="nvcc"
4255     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4256 else
4257     nvcc_default="clang"
4258     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4259     NVCC_C=""
4260 fi
4261
4262 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4263     target_exec x86asmexe nvcc
4264 enabled cross_compile || host_cc_default=$cc
4265 set_default host_cc
4266
4267 pkg_config_fail_message=""
4268 if ! $pkg_config --version >/dev/null 2>&1; then
4269     warn "$pkg_config not found, library detection may fail."
4270     pkg_config=false
4271 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4272     pkg_config_fail_message="
4273 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4274 fi
4275
4276 if test $doxygen != $doxygen_default && \
4277   ! $doxygen --version >/dev/null 2>&1; then
4278     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4279 fi
4280
4281 exesuf() {
4282     case $1 in
4283         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4284     esac
4285 }
4286
4287 EXESUF=$(exesuf $target_os)
4288 HOSTEXESUF=$(exesuf $host_os)
4289
4290 # set temporary file name
4291 : ${TMPDIR:=$TEMPDIR}
4292 : ${TMPDIR:=$TMP}
4293 : ${TMPDIR:=/tmp}
4294
4295 if [ -n "$tempprefix" ] ; then
4296     mktemp(){
4297         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4298         echo "$tmpname"
4299         mkdir "$tmpname"
4300     }
4301 elif ! test_cmd mktemp -u XXXXXX; then
4302     # simple replacement for missing mktemp
4303     # NOT SAFE FOR GENERAL USE
4304     mktemp(){
4305         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4306         echo "$tmpname"
4307         mkdir "$tmpname"
4308     }
4309 fi
4310
4311 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4312     die "Unable to create temporary directory in $TMPDIR."
4313
4314 tmpfile(){
4315     tmp="${FFTMPDIR}/test"$2
4316     (set -C; exec > $tmp) 2> /dev/null ||
4317         die "Unable to create temporary file in $FFTMPDIR."
4318     eval $1=$tmp
4319 }
4320
4321 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4322 trap 'exit 2' INT
4323
4324 tmpfile TMPASM .asm
4325 tmpfile TMPC   .c
4326 tmpfile TMPCPP .cpp
4327 tmpfile TMPE   $EXESUF
4328 tmpfile TMPH   .h
4329 tmpfile TMPM   .m
4330 tmpfile TMPCU  .cu
4331 tmpfile TMPO   .o
4332 tmpfile TMPS   .S
4333 tmpfile TMPSH  .sh
4334 tmpfile TMPV   .ver
4335
4336 unset -f mktemp
4337
4338 chmod +x $TMPE
4339
4340 # make sure we can execute files in $TMPDIR
4341 cat > $TMPSH 2>> $logfile <<EOF
4342 #! /bin/sh
4343 EOF
4344 chmod +x $TMPSH >> $logfile 2>&1
4345 if ! $TMPSH >> $logfile 2>&1; then
4346     cat <<EOF
4347 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4348 variable to another directory and make sure that it is not mounted noexec.
4349 EOF
4350     die "Sanity test failed."
4351 fi
4352
4353 armasm_flags(){
4354     for flag; do
4355         case $flag in
4356             # Filter out MSVC cl.exe options from cflags that shouldn't
4357             # be passed to gas-preprocessor
4358             -M[TD]*)                                            ;;
4359             *)                  echo $flag                      ;;
4360         esac
4361    done
4362 }
4363
4364 cparser_flags(){
4365     for flag; do
4366         case $flag in
4367             -Wno-switch)             echo -Wno-switch-enum ;;
4368             -Wno-format-zero-length) ;;
4369             -Wdisabled-optimization) ;;
4370             -Wno-pointer-sign)       echo -Wno-other ;;
4371             *)                       echo $flag ;;
4372         esac
4373     done
4374 }
4375
4376 msvc_common_flags(){
4377     for flag; do
4378         case $flag in
4379             # In addition to specifying certain flags under the compiler
4380             # specific filters, they must be specified here as well or else the
4381             # generic catch all at the bottom will print the original flag.
4382             -Wall)                ;;
4383             -Wextra)              ;;
4384             -std=c99)             ;;
4385             # Common flags
4386             -fomit-frame-pointer) ;;
4387             -g)                   echo -Z7 ;;
4388             -fno-math-errno)      ;;
4389             -fno-common)          ;;
4390             -fno-signed-zeros)    ;;
4391             -fPIC)                ;;
4392             -mthumb)              ;;
4393             -march=*)             ;;
4394             -lz)                  echo zlib.lib ;;
4395             -lx264)               echo libx264.lib ;;
4396             -lstdc++)             ;;
4397             -l*)                  echo ${flag#-l}.lib ;;
4398             -LARGEADDRESSAWARE)   echo $flag ;;
4399             -L*)                  echo -libpath:${flag#-L} ;;
4400             *)                    echo $flag ;;
4401         esac
4402     done
4403 }
4404
4405 msvc_flags(){
4406     msvc_common_flags "$@"
4407     for flag; do
4408         case $flag in
4409             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4410                                        -wd4554 ;;
4411             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4412                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4413                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4414                                        -wd4307 \
4415                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4416         esac
4417     done
4418 }
4419
4420 icl_flags(){
4421     msvc_common_flags "$@"
4422     for flag; do
4423         case $flag in
4424             # Despite what Intel's documentation says -Wall, which is supported
4425             # on Windows, does enable remarks so disable them here.
4426             -Wall)                echo $flag -Qdiag-disable:remark ;;
4427             -std=c99)             echo -Qstd=c99 ;;
4428             -flto)                echo -ipo ;;
4429         esac
4430     done
4431 }
4432
4433 icc_flags(){
4434     for flag; do
4435         case $flag in
4436             -flto)                echo -ipo ;;
4437             *)                    echo $flag ;;
4438         esac
4439     done
4440 }
4441
4442 suncc_flags(){
4443     for flag; do
4444         case $flag in
4445             -march=*|-mcpu=*)
4446                 case "${flag#*=}" in
4447                     native)                   echo -xtarget=native       ;;
4448                     v9|niagara)               echo -xarch=sparc          ;;
4449                     ultrasparc)               echo -xarch=sparcvis       ;;
4450                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4451                     i586|pentium)             echo -xchip=pentium        ;;
4452                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4453                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4454                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4455                     pentium4*)          echo -xtarget=pentium4           ;;
4456                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4457                     *-sse3)             echo -xarch=sse3                 ;;
4458                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4459                     bonnell)                   echo -xarch=ssse3         ;;
4460                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4461                     westmere)                  echo -xtarget=westmere    ;;
4462                     silvermont)                echo -xarch=sse4_2        ;;
4463                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4464                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4465                                                echo -xarch=avx           ;;
4466                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4467                     btver1)                    echo -xarch=amdsse4a      ;;
4468                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4469                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4470                     k8|opteron|athlon64|athlon-fx)
4471                                                echo -xarch=sse2a         ;;
4472                     athlon*)                   echo -xarch=pentium_proa  ;;
4473                 esac
4474                 ;;
4475             -std=c99)             echo -xc99              ;;
4476             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4477             -fPIC)                echo -KPIC -xcode=pic32 ;;
4478             -W*,*)                echo $flag              ;;
4479             -f*-*|-W*|-mimpure-text)                      ;;
4480             -shared)              echo -G                 ;;
4481             *)                    echo $flag              ;;
4482         esac
4483     done
4484 }
4485
4486 probe_cc(){
4487     pfx=$1
4488     _cc=$2
4489     first=$3
4490
4491     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4492     unset _ld_o _ldflags _ld_lib _ld_path
4493     unset _depflags _DEPCMD _DEPFLAGS
4494     _flags_filter=echo
4495
4496     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4497         true # no-op to avoid reading stdin in following checks
4498     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4499         _type=llvm_gcc
4500         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4501         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4502         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4503         _cflags_speed='-O3'
4504         _cflags_size='-Os'
4505     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4506         _type=gcc
4507         gcc_version=$($_cc --version | head -n1)
4508         gcc_basever=$($_cc -dumpversion)
4509         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4510         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4511         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4512         case $gcc_basever in
4513             2) ;;
4514             2.*) ;;
4515             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4516         esac
4517         if [ "$first" = true ]; then
4518             case $gcc_basever in
4519                 4.2*)
4520                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4521             esac
4522         fi
4523         _cflags_speed='-O3'
4524         _cflags_size='-Os'
4525     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4526         _type=icc
4527         _ident=$($_cc --version | head -n1)
4528         _depflags='-MMD'
4529         _cflags_speed='-O3'
4530         _cflags_size='-Os'
4531         _cflags_noopt='-O1'
4532         _flags_filter=icc_flags
4533     elif $_cc -v 2>&1 | grep -q xlc; then
4534         _type=xlc
4535         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4536         _cflags_speed='-O5'
4537         _cflags_size='-O5 -qcompact'
4538     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4539         test -d "$sysroot" || die "No valid sysroot specified."
4540         _type=armcc
4541         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4542         armcc_conf="$PWD/armcc.conf"
4543         $_cc --arm_linux_configure                 \
4544              --arm_linux_config_file="$armcc_conf" \
4545              --configure_sysroot="$sysroot"        \
4546              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4547              die "Error creating armcc configuration file."
4548         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4549         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4550         as_default="${cross_prefix}gcc"
4551         _depflags='-MMD'
4552         _cflags_speed='-O3'
4553         _cflags_size='-Os'
4554     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4555         _type=clang
4556         _ident=$($_cc --version 2>/dev/null | head -n1)
4557         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4558         _cflags_speed='-O3'
4559         _cflags_size='-Oz'
4560     elif $_cc -V 2>&1 | grep -q Sun; then
4561         _type=suncc
4562         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4563         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4564         _DEPFLAGS='-xM1 -xc99'
4565         _ldflags='-std=c99'
4566         _cflags_speed='-O5'
4567         _cflags_size='-O5 -xspace'
4568         _flags_filter=suncc_flags
4569     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4570         _type=pathscale
4571         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4572         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4573         _cflags_speed='-O2'
4574         _cflags_size='-Os'
4575         _flags_filter='filter_out -Wdisabled-optimization'
4576     elif $_cc -v 2>&1 | grep -q Open64; then
4577         _type=open64
4578         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4579         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4580         _cflags_speed='-O2'
4581         _cflags_size='-Os'
4582         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4583     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4584         _type=armasm
4585         _ident=$($_cc | head -n1)
4586         # 4509: "This form of conditional instruction is deprecated"
4587         _flags="-nologo -ignore 4509"
4588         _flags_filter=armasm_flags
4589     elif $_cc 2>&1 | grep -q Intel; then
4590         _type=icl
4591         _ident=$($_cc 2>&1 | head -n1)
4592         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4593         # Not only is O3 broken on 13.x+ but it is slower on all previous
4594         # versions (tested) as well.
4595         _cflags_speed="-O2"
4596         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4597         if $_cc 2>&1 | grep -q Linker; then
4598             _ld_o='-out:$@'
4599         else
4600             _ld_o='-Fe$@'
4601         fi
4602         _cc_o='-Fo$@'
4603         _cc_e='-P'
4604         _flags_filter=icl_flags
4605         _ld_lib='lib%.a'
4606         _ld_path='-libpath:'
4607         # -Qdiag-error to make icl error when seeing certain unknown arguments
4608         _flags='-nologo -Qdiag-error:4044,10157'
4609         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4610         # with MSVC which enables it by default.
4611         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4612         disable stripping
4613     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4614         # lld can emulate multiple different linkers; in ms link.exe mode,
4615         # the -? parameter gives the help output which contains an identifyable
4616         # string, while it gives an error in other modes.
4617         _type=lld-link
4618         # The link.exe mode doesn't have a switch for getting the version,
4619         # but we can force it back to gnu mode and get the version from there.
4620         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4621         _ld_o='-out:$@'
4622         _flags_filter=msvc_flags
4623         _ld_lib='lib%.a'
4624         _ld_path='-libpath:'
4625     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4626         _type=msvc
4627         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4628         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4629         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4630         _cflags_speed="-O2"
4631         _cflags_size="-O1"
4632         _cflags_noopt="-O1"
4633         if $_cc -nologo- 2>&1 | grep -q Linker; then
4634             _ld_o='-out:$@'
4635         else
4636             _ld_o='-Fe$@'
4637         fi
4638         _cc_o='-Fo$@'
4639         _cc_e='-P -Fi$@'
4640         _flags_filter=msvc_flags
4641         _ld_lib='lib%.a'
4642         _ld_path='-libpath:'
4643         _flags='-nologo'
4644         disable stripping
4645     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4646         _type=cparser
4647         _ident=$($_cc --version | head -n1)
4648         _depflags='-MMD'
4649         _cflags_speed='-O4'
4650         _cflags_size='-O2'
4651         _flags_filter=cparser_flags
4652     fi
4653
4654     eval ${pfx}_type=\$_type
4655     eval ${pfx}_ident=\$_ident
4656 }
4657
4658 set_ccvars(){
4659     eval ${1}_C=\${_cc_c-\${${1}_C}}
4660     eval ${1}_E=\${_cc_e-\${${1}_E}}
4661     eval ${1}_O=\${_cc_o-\${${1}_O}}
4662
4663     if [ -n "$_depflags" ]; then
4664         eval ${1}_DEPFLAGS=\$_depflags
4665     else
4666         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4667         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4668         eval DEP${1}FLAGS=\$_flags
4669     fi
4670 }
4671
4672 probe_cc cc "$cc" "true"
4673 cflags_filter=$_flags_filter
4674 cflags_speed=$_cflags_speed
4675 cflags_size=$_cflags_size
4676 cflags_noopt=$_cflags_noopt
4677 add_cflags $_flags $_cflags
4678 cc_ldflags=$_ldflags
4679 set_ccvars CC
4680 set_ccvars CXX
4681
4682 probe_cc hostcc "$host_cc"
4683 host_cflags_filter=$_flags_filter
4684 host_cflags_speed=$_cflags_speed
4685 add_host_cflags  $_flags $_cflags
4686 set_ccvars HOSTCC
4687
4688 test -n "$cc_type" && enable $cc_type ||
4689     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4690
4691 : ${as_default:=$cc}
4692 : ${objcc_default:=$cc}
4693 : ${dep_cc_default:=$cc}
4694 : ${ld_default:=$cc}
4695 : ${host_ld_default:=$host_cc}
4696 set_default ar as objcc dep_cc ld ln_s host_ld windres
4697
4698 probe_cc as "$as"
4699 asflags_filter=$_flags_filter
4700 add_asflags $_flags $_cflags
4701 set_ccvars AS
4702
4703 probe_cc objcc "$objcc"
4704 objcflags_filter=$_flags_filter
4705 add_objcflags $_flags $_cflags
4706 set_ccvars OBJC
4707
4708 probe_cc ld "$ld"
4709 ldflags_filter=$_flags_filter
4710 add_ldflags $_flags $_ldflags
4711 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4712 LD_O=${_ld_o-$LD_O}
4713 LD_LIB=${_ld_lib-$LD_LIB}
4714 LD_PATH=${_ld_path-$LD_PATH}
4715
4716 probe_cc hostld "$host_ld"
4717 host_ldflags_filter=$_flags_filter
4718 add_host_ldflags $_flags $_ldflags
4719 HOSTLD_O=${_ld_o-$HOSTLD_O}
4720
4721 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4722     probe_cc depcc "$dep_cc"
4723     CCDEP=${_DEPCMD:-$DEPCMD}
4724     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4725     DEPCCFLAGS=$_flags
4726 fi
4727
4728 if $ar 2>&1 | grep -q Microsoft; then
4729     arflags="-nologo"
4730     ar_o='-out:$@'
4731 elif $ar 2>&1 | grep -q "\[D\] "; then
4732     arflags="rcD"
4733     ar_o='$@'
4734 else
4735     arflags="rc"
4736     ar_o='$@'
4737 fi
4738
4739 add_cflags $extra_cflags
4740 add_cxxflags $extra_cxxflags
4741 add_objcflags $extra_objcflags
4742 add_asflags $extra_cflags
4743
4744 if test -n "$sysroot"; then
4745     case "$cc_type" in
4746         gcc|llvm_gcc|clang)
4747             add_cppflags --sysroot="$sysroot"
4748             add_ldflags --sysroot="$sysroot"
4749         ;;
4750     esac
4751 fi
4752
4753 if test "$cpu" = host; then
4754     enabled cross_compile &&
4755         die "--cpu=host makes no sense when cross-compiling."
4756
4757     case "$cc_type" in
4758         gcc|llvm_gcc)
4759             check_native(){
4760                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4761                 sed -n "/cc1.*$1=/{
4762                             s/.*$1=\\([^ ]*\\).*/\\1/
4763                             p
4764                             q
4765                         }" $TMPE
4766             }
4767             cpu=$(check_native -march || check_native -mcpu)
4768         ;;
4769         clang)
4770             check_native(){
4771                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4772                 sed -n "/cc1.*-target-cpu /{
4773                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4774                             p
4775                             q
4776                         }" $TMPE
4777             }
4778             cpu=$(check_native -march)
4779         ;;
4780     esac
4781
4782     test "${cpu:-host}" = host &&
4783         die "--cpu=host not supported with compiler $cc"
4784 fi
4785
4786 # Deal with common $arch aliases
4787 case "$arch" in
4788     aarch64|arm64)
4789         arch="aarch64"
4790     ;;
4791     arm*|iPad*|iPhone*)
4792         arch="arm"
4793     ;;
4794     mips*|IP*)
4795         case "$arch" in
4796         *el)
4797             add_cppflags -EL
4798             add_ldflags -EL
4799         ;;
4800         *eb)
4801             add_cppflags -EB
4802             add_ldflags -EB
4803         ;;
4804         esac
4805         arch="mips"
4806     ;;
4807     parisc*|hppa*)
4808         arch="parisc"
4809     ;;
4810     "Power Macintosh"|ppc*|powerpc*)
4811         arch="ppc"
4812     ;;
4813     s390|s390x)
4814         arch="s390"
4815     ;;
4816     sh4|sh)
4817         arch="sh4"
4818     ;;
4819     sun4*|sparc*)
4820         arch="sparc"
4821     ;;
4822     tilegx|tile-gx)
4823         arch="tilegx"
4824     ;;
4825     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4826         arch="x86"
4827     ;;
4828 esac
4829
4830 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4831 enable $arch
4832
4833 # Add processor-specific flags
4834 if enabled aarch64; then
4835
4836     case $cpu in
4837         armv*)
4838             cpuflags="-march=$cpu"
4839         ;;
4840         *)
4841             cpuflags="-mcpu=$cpu"
4842         ;;
4843     esac
4844
4845 elif enabled alpha; then
4846
4847     cpuflags="-mcpu=$cpu"
4848
4849 elif enabled arm; then
4850
4851     check_arm_arch() {
4852         test_cpp_condition stddef.h \
4853             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4854             $cpuflags
4855     }
4856
4857     probe_arm_arch() {
4858         if   check_arm_arch 4;        then echo armv4
4859         elif check_arm_arch 4T;       then echo armv4t
4860         elif check_arm_arch 5;        then echo armv5
4861         elif check_arm_arch 5E;       then echo armv5e
4862         elif check_arm_arch 5T;       then echo armv5t
4863         elif check_arm_arch 5TE;      then echo armv5te
4864         elif check_arm_arch 5TEJ;     then echo armv5te
4865         elif check_arm_arch 6;        then echo armv6
4866         elif check_arm_arch 6J;       then echo armv6j
4867         elif check_arm_arch 6K;       then echo armv6k
4868         elif check_arm_arch 6Z;       then echo armv6z
4869         elif check_arm_arch 6KZ;      then echo armv6zk
4870         elif check_arm_arch 6ZK;      then echo armv6zk
4871         elif check_arm_arch 6T2;      then echo armv6t2
4872         elif check_arm_arch 7;        then echo armv7
4873         elif check_arm_arch 7A  7_A;  then echo armv7-a
4874         elif check_arm_arch 7S;       then echo armv7-a
4875         elif check_arm_arch 7R  7_R;  then echo armv7-r
4876         elif check_arm_arch 7M  7_M;  then echo armv7-m
4877         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4878         elif check_arm_arch 8A  8_A;  then echo armv8-a
4879         fi
4880     }
4881
4882     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4883
4884     case $cpu in
4885         armv*)
4886             cpuflags="-march=$cpu"
4887             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4888         ;;
4889         *)
4890             cpuflags="-mcpu=$cpu"
4891             case $cpu in
4892                 cortex-a*)                               subarch=armv7a  ;;
4893                 cortex-r*)                               subarch=armv7r  ;;
4894                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4895                 arm11*)                                  subarch=armv6   ;;
4896                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4897                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4898                 *)                             subarch=$(probe_arm_arch) ;;
4899             esac
4900         ;;
4901     esac
4902
4903     case "$subarch" in
4904         armv5t*)    enable fast_clz                ;;
4905         armv[6-8]*)
4906             enable fast_clz
4907             disabled fast_unaligned || enable fast_unaligned
4908             ;;
4909     esac
4910
4911 elif enabled avr32; then
4912
4913     case $cpu in
4914         ap7[02]0[0-2])
4915             subarch="avr32_ap"
4916             cpuflags="-mpart=$cpu"
4917         ;;
4918         ap)
4919             subarch="avr32_ap"
4920             cpuflags="-march=$cpu"
4921         ;;
4922         uc3[ab]*)
4923             subarch="avr32_uc"
4924             cpuflags="-mcpu=$cpu"
4925         ;;
4926         uc)
4927             subarch="avr32_uc"
4928             cpuflags="-march=$cpu"
4929         ;;
4930     esac
4931
4932 elif enabled bfin; then
4933
4934     cpuflags="-mcpu=$cpu"
4935
4936 elif enabled mips; then
4937
4938     cpuflags="-march=$cpu"
4939
4940     if [ "$cpu" != "generic" ]; then
4941         disable mips32r2
4942         disable mips32r5
4943         disable mips64r2
4944         disable mips32r6
4945         disable mips64r6
4946         disable loongson2
4947         disable loongson3
4948
4949         case $cpu in
4950             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4951                 enable mips32r2
4952                 disable msa
4953             ;;
4954             p5600|i6400|p6600)
4955                 disable mipsdsp
4956                 disable mipsdspr2
4957             ;;
4958             loongson*)
4959                 enable loongson2
4960                 enable loongson3
4961                 enable local_aligned
4962                 enable simd_align_16
4963                 enable fast_64bit
4964                 enable fast_clz
4965                 enable fast_cmov
4966                 enable fast_unaligned
4967                 disable aligned_stack
4968                 disable mipsdsp
4969                 disable mipsdspr2
4970                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4971                 if [ $cc == gcc ]; then
4972                     gcc_version=$(gcc -dumpversion)
4973                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4974                         expensive_optimization_flag=""
4975                     else
4976                         expensive_optimization_flag="-fno-expensive-optimizations"
4977                     fi
4978                 fi
4979                 case $cpu in
4980                     loongson3*)
4981                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4982                     ;;
4983                     loongson2e)
4984                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4985                     ;;
4986                     loongson2f)
4987                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4988                     ;;
4989                 esac
4990             ;;
4991             *)
4992                 # Unknown CPU. Disable everything.
4993                 warn "unknown CPU. Disabling all MIPS optimizations."
4994                 disable mipsfpu
4995                 disable mipsdsp
4996                 disable mipsdspr2
4997                 disable msa
4998                 disable mmi
4999             ;;
5000         esac
5001
5002         case $cpu in
5003             24kc)
5004                 disable mipsfpu
5005                 disable mipsdsp
5006                 disable mipsdspr2
5007             ;;
5008             24kf*)
5009                 disable mipsdsp
5010                 disable mipsdspr2
5011             ;;
5012             24kec|34kc|1004kc)
5013                 disable mipsfpu
5014                 disable mipsdspr2
5015             ;;
5016             24kef*|34kf*|1004kf*)
5017                 disable mipsdspr2
5018             ;;
5019             74kc)
5020                 disable mipsfpu
5021             ;;
5022             p5600)
5023                 enable mips32r5
5024                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
5025             ;;
5026             i6400)
5027                 enable mips64r6
5028                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5029             ;;
5030             p6600)
5031                 enable mips64r6
5032                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
5033             ;;
5034         esac
5035     else
5036         # We do not disable anything. Is up to the user to disable the unwanted features.
5037         warn 'generic cpu selected'
5038     fi
5039
5040 elif enabled ppc; then
5041
5042     disable ldbrx
5043
5044     case $(tolower $cpu) in
5045         601|ppc601|powerpc601)
5046             cpuflags="-mcpu=601"
5047             disable altivec
5048         ;;
5049         603*|ppc603*|powerpc603*)
5050             cpuflags="-mcpu=603"
5051             disable altivec
5052         ;;
5053         604*|ppc604*|powerpc604*)
5054             cpuflags="-mcpu=604"
5055             disable altivec
5056         ;;
5057         g3|75*|ppc75*|powerpc75*)
5058             cpuflags="-mcpu=750"
5059             disable altivec
5060         ;;
5061         g4|745*|ppc745*|powerpc745*)
5062             cpuflags="-mcpu=7450"
5063             disable vsx
5064         ;;
5065         74*|ppc74*|powerpc74*)
5066             cpuflags="-mcpu=7400"
5067             disable vsx
5068         ;;
5069         g5|970|ppc970|powerpc970)
5070             cpuflags="-mcpu=970"
5071             disable vsx
5072         ;;
5073         power[3-6]*)
5074             cpuflags="-mcpu=$cpu"
5075             disable vsx
5076         ;;
5077         power[7-8]*)
5078             cpuflags="-mcpu=$cpu"
5079         ;;
5080         cell)
5081             cpuflags="-mcpu=cell"
5082             enable ldbrx
5083             disable vsx
5084         ;;
5085         e500mc)
5086             cpuflags="-mcpu=e500mc"
5087             disable altivec
5088         ;;
5089         e500v2)
5090             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
5091             disable altivec
5092             disable dcbzl
5093         ;;
5094         e500)
5095             cpuflags="-mcpu=8540 -mhard-float"
5096             disable altivec
5097             disable dcbzl
5098         ;;
5099     esac
5100
5101 elif enabled sparc; then
5102
5103     case $cpu in
5104         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
5105             cpuflags="-mcpu=$cpu"
5106         ;;
5107         ultrasparc*|niagara[234])
5108             cpuflags="-mcpu=$cpu"
5109         ;;
5110     esac
5111
5112 elif enabled x86; then
5113
5114     case $cpu in
5115         i[345]86|pentium)
5116             cpuflags="-march=$cpu"
5117             disable i686
5118             disable mmx
5119         ;;
5120         # targets that do NOT support nopl and conditional mov (cmov)
5121         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
5122             cpuflags="-march=$cpu"
5123             disable i686
5124         ;;
5125         # targets that do support nopl and conditional mov (cmov)
5126         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
5127         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
5128         |amdfam10|barcelona|b[dt]ver*|znver*)
5129             cpuflags="-march=$cpu"
5130             enable i686
5131             enable fast_cmov
5132         ;;
5133         # targets that do support conditional mov but on which it's slow
5134         pentium4|pentium4m|prescott|nocona)
5135             cpuflags="-march=$cpu"
5136             enable i686
5137             disable fast_cmov
5138         ;;
5139     esac
5140
5141 fi
5142
5143 if [ "$cpu" != generic ]; then
5144     add_cflags  $cpuflags
5145     add_asflags $cpuflags
5146     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
5147 fi
5148
5149 # compiler sanity check
5150 test_exec <<EOF
5151 int main(void){ return 0; }
5152 EOF
5153 if test "$?" != 0; then
5154     echo "$cc is unable to create an executable file."
5155     if test -z "$cross_prefix" && ! enabled cross_compile ; then
5156         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
5157         echo "Only do this if you know what cross compiling means."
5158     fi
5159     die "C compiler test failed."
5160 fi
5161
5162 add_cppflags -D_ISOC99_SOURCE
5163 add_cxxflags -D__STDC_CONSTANT_MACROS
5164 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
5165
5166 # some compilers silently accept -std=c11, so we also need to check that the
5167 # version macro is defined properly
5168 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
5169     add_cflags -std=c11 ||
5170     check_cflags -std=c99
5171
5172 check_cppflags -D_FILE_OFFSET_BITS=64
5173 check_cppflags -D_LARGEFILE_SOURCE
5174
5175 add_host_cppflags -D_ISOC99_SOURCE
5176 check_host_cflags -std=c99
5177 check_host_cflags -Wall
5178 check_host_cflags $host_cflags_speed
5179
5180 check_64bit(){
5181     arch32=$1
5182     arch64=$2
5183     expr=${3:-'sizeof(void *) > 4'}
5184     test_code cc "" "int test[2*($expr) - 1]" &&
5185         subarch=$arch64 || subarch=$arch32
5186     enable $subarch
5187 }
5188
5189 case "$arch" in
5190     aarch64|alpha|ia64)
5191         enabled shared && enable_weak pic
5192     ;;
5193     mips)
5194         check_64bit mips mips64 '_MIPS_SIM > 1'
5195         enabled shared && enable_weak pic
5196     ;;
5197     parisc)
5198         check_64bit parisc parisc64
5199         enabled shared && enable_weak pic
5200     ;;
5201     ppc)
5202         check_64bit ppc ppc64
5203         enabled shared && enable_weak pic
5204     ;;
5205     s390)
5206         check_64bit s390 s390x
5207         enabled shared && enable_weak pic
5208     ;;
5209     sparc)
5210         check_64bit sparc sparc64
5211         enabled shared && enable_weak pic
5212     ;;
5213     x86)
5214         check_64bit x86_32 x86_64
5215         # Treat x32 as x64 for now. Note it also needs pic if shared
5216         test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
5217             subarch=x86_64 && enable x86_64 && disable x86_32
5218         if enabled x86_64; then
5219             enabled shared && enable_weak pic
5220             objformat=elf64
5221         fi
5222     ;;
5223 esac
5224
5225 # OS specific
5226 case $target_os in
5227     aix)
5228         SHFLAGS=-shared
5229         add_cppflags '-I\$(SRC_PATH)/compat/aix'
5230         enabled shared && add_ldflags -Wl,-brtl
5231         arflags='-Xany -r -c'
5232         striptype=""
5233         ;;
5234     android)
5235         disable symver
5236         enable section_data_rel_ro
5237         add_cflags -fPIE
5238         add_ldexeflags -fPIE -pie
5239         SLIB_INSTALL_NAME='$(SLIBNAME)'
5240         SLIB_INSTALL_LINKS=
5241         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
5242         ;;
5243     haiku)
5244         prefix_default="/boot/common"
5245         network_extralibs="-lnetwork"
5246         host_extralibs=
5247         ;;
5248     sunos)
5249         SHFLAGS='-shared -Wl,-h,$$(@F)'
5250         enabled x86 && append SHFLAGS -mimpure-text
5251         network_extralibs="-lsocket -lnsl"
5252         add_cppflags -D__EXTENSIONS__
5253         # When using suncc to build, the Solaris linker will mark
5254         # an executable with each instruction set encountered by
5255         # the Solaris assembler.  As our libraries contain their own
5256         # guards for processor-specific code, instead suppress
5257         # generation of the HWCAPS ELF section on Solaris x86 only.
5258         enabled_all suncc x86 &&
5259             echo "hwcap_1 = OVERRIDE;" > mapfile &&
5260             add_ldflags -Wl,-M,mapfile
5261         nm_default='nm -P -g'
5262         striptype=""
5263         version_script='-M'
5264         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
5265         ;;
5266     netbsd)
5267         disable symver
5268         oss_indev_extralibs="-lossaudio"
5269         oss_outdev_extralibs="-lossaudio"
5270         enabled gcc || check_ldflags -Wl,-zmuldefs
5271         ;;
5272     openbsd|bitrig)
5273         disable symver
5274         striptype=""
5275         SHFLAGS='-shared'
5276         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
5277         SLIB_INSTALL_LINKS=
5278         oss_indev_extralibs="-lossaudio"
5279         oss_outdev_extralibs="-lossaudio"
5280         ;;
5281     dragonfly)
5282         disable symver
5283         ;;
5284     freebsd)
5285         ;;
5286     bsd/os)
5287         add_extralibs -lpoll -lgnugetopt
5288         strip="strip -d"
5289         ;;
5290     darwin)
5291         enabled ppc && add_asflags -force_cpusubtype_ALL
5292         install_name_dir_default='$(SHLIBDIR)'
5293         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
5294         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
5295         strip="${strip} -x"
5296         add_ldflags -Wl,-dynamic,-search_paths_first
5297         check_cflags -Werror=partial-availability
5298         SLIBSUF=".dylib"
5299         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
5300         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
5301         enabled x86_64 && objformat="macho64" || objformat="macho32"
5302         enabled_any pic shared x86_64 ||
5303             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
5304         check_headers dispatch/dispatch.h &&
5305             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
5306         if test -n "$sysroot"; then
5307             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
5308             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
5309         fi
5310         version_script='-exported_symbols_list'
5311         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
5312         ;;
5313     msys*)
5314         die "Native MSYS builds are discouraged, please use the MINGW environment."
5315         ;;
5316     mingw32*|mingw64*)
5317         target_os=mingw32
5318         LIBTARGET=i386
5319         if enabled x86_64; then
5320             LIBTARGET="i386:x86-64"
5321         elif enabled arm; then
5322             LIBTARGET="arm"
5323         elif enabled aarch64; then
5324             LIBTARGET="arm64"
5325         fi
5326         if enabled shared; then
5327             # Cannot build both shared and static libs when using dllimport.
5328             disable static
5329         fi
5330         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5331         enabled x86_32 && check_ldflags -Wl,--large-address-aware
5332         shlibdir_default="$bindir_default"
5333         SLIBPREF=""
5334         SLIBSUF=".dll"
5335         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5336         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5337         if test_cmd lib.exe -list; then
5338             SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5339             if enabled x86_64; then
5340                 LIBTARGET=x64
5341             fi
5342         else
5343             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
5344         fi
5345         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5346         SLIB_INSTALL_LINKS=
5347         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5348         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5349         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5350         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
5351         enabled x86_64 && objformat="win64" || objformat="win32"
5352         dlltool="${cross_prefix}dlltool"
5353         ranlib=:
5354         enable dos_paths
5355         check_ldflags -Wl,--nxcompat,--dynamicbase
5356         # Lets work around some stupidity in binutils.
5357         # ld will strip relocations from executables even though we need them
5358         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
5359         # however ld then forgets what the entry point should be (oops) so we
5360         # have to manually (re)set it.
5361         if enabled x86_32; then
5362             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
5363         elif enabled x86_64; then
5364             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
5365             check_ldflags -Wl,--high-entropy-va # binutils 2.25
5366             # Set image base >4GB for extra entropy with HEASLR
5367             add_ldexeflags -Wl,--image-base,0x140000000
5368             append SHFLAGS -Wl,--image-base,0x180000000
5369         fi
5370         ;;
5371     win32|win64)
5372         disable symver
5373         if enabled shared; then
5374             # Link to the import library instead of the normal static library
5375             # for shared libs.
5376             LD_LIB='%.lib'
5377             # Cannot build both shared and static libs with MSVC or icl.
5378             disable static
5379         fi
5380         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
5381         shlibdir_default="$bindir_default"
5382         SLIBPREF=""
5383         SLIBSUF=".dll"
5384         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5385         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5386         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
5387         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5388         SLIB_INSTALL_LINKS=
5389         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
5390         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
5391         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
5392         enabled x86_64 && objformat="win64" || objformat="win32"
5393         ranlib=:
5394         enable dos_paths
5395         ;;
5396     cygwin*)
5397         target_os=cygwin
5398         shlibdir_default="$bindir_default"
5399         SLIBPREF="cyg"
5400         SLIBSUF=".dll"
5401         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5402         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
5403         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5404         SLIB_INSTALL_LINKS=
5405         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
5406         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
5407         enabled x86_64 && objformat="win64" || objformat="win32"
5408         enable dos_paths
5409         enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
5410         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5411         ;;
5412     *-dos|freedos|opendos)
5413         network_extralibs="-lsocket"
5414         objformat="coff"
5415         enable dos_paths
5416         ;;
5417     linux)
5418         enable section_data_rel_ro
5419         enabled_any arm aarch64 && enable_weak linux_perf
5420         ;;
5421     irix*)
5422         target_os=irix
5423         ranlib="echo ignoring ranlib"
5424         ;;
5425     os/2*)
5426         strip="lxlite -CS"
5427         striptype=""
5428         objformat="aout"
5429         add_cppflags -D_GNU_SOURCE
5430         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
5431         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
5432         LIBSUF="_s.a"
5433         SLIBPREF=""
5434         SLIBSUF=".dll"
5435         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
5436         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
5437         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
5438             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
5439             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
5440             echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
5441             emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
5442         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
5443             emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
5444         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
5445         SLIB_INSTALL_LINKS=
5446         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
5447         enable dos_paths
5448         enable_weak os2threads
5449         ;;
5450     gnu/kfreebsd)
5451         add_cppflags -D_BSD_SOURCE
5452         ;;
5453     gnu)
5454         ;;
5455     qnx)
5456         add_cppflags -D_QNX_SOURCE
5457         network_extralibs="-lsocket"
5458         ;;
5459     symbian)
5460         SLIBSUF=".dll"
5461         enable dos_paths
5462         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
5463         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
5464         add_ldflags -Wl,--target1-abs,--no-undefined \
5465                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
5466                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
5467         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
5468                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
5469                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
5470         ;;
5471     minix)
5472         ;;
5473     none)
5474         ;;
5475     *)
5476         die "Unknown OS '$target_os'."
5477         ;;
5478 esac
5479
5480 # test if creating links works
5481 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
5482 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
5483 mkdir "$link_dest"
5484 $ln_s "$link_dest" "$link_name"
5485 touch "$link_dest/test_file"
5486 if [ "$source_path" != "." ] && [ "$source_path" != "src" ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
5487     # create link to source path
5488     [ -e src ] && rm src
5489     $ln_s "$source_path" src
5490     source_link=src
5491 else
5492     # creating directory links doesn't work
5493     # fall back to using the full source path
5494     source_link="$source_path"
5495 fi
5496 # cleanup
5497 rm -r "$link_dest"
5498 rm -r "$link_name"
5499
5500 # determine libc flavour
5501
5502 probe_libc(){
5503     pfx=$1
5504     pfx_no_=${pfx%_}
5505     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
5506     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
5507         eval ${pfx}libc_type=uclibc
5508         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5509     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
5510         eval ${pfx}libc_type=glibc
5511         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5512     # MinGW headers can be installed on Cygwin, so check for newlib first.
5513     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
5514         eval ${pfx}libc_type=newlib
5515         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
5516     # MinGW64 is backwards compatible with MinGW32, so check for it first.
5517     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
5518         eval ${pfx}libc_type=mingw64
5519         if test_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
5520             add_compat msvcrt/snprintf.o
5521             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
5522         fi
5523         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5524         eval test \$${pfx_no_}cc_type = "gcc" &&
5525             add_${pfx}cppflags -D__printf__=__gnu_printf__
5526         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5527             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5528         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5529     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
5530          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
5531         eval ${pfx}libc_type=mingw32
5532         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
5533             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
5534             die "ERROR: MinGW32 runtime version must be >= 3.15."
5535         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
5536         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
5537             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
5538         test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
5539             add_${pfx}cppflags -D_WIN32_WINNT=0x0600
5540         eval test \$${pfx_no_}cc_type = "gcc" &&
5541             add_${pfx}cppflags -D__printf__=__gnu_printf__
5542         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5543     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
5544         eval ${pfx}libc_type=msvcrt
5545         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
5546             if [ "$pfx" = host_ ]; then
5547                 add_host_cppflags -Dsnprintf=_snprintf
5548             else
5549                 add_compat strtod.o strtod=avpriv_strtod
5550                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
5551                                              _snprintf=avpriv_snprintf  \
5552                                              vsnprintf=avpriv_vsnprintf
5553             fi
5554         fi
5555         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
5556         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
5557         # 0x601 by default unless something else is set by the user.
5558         # This can easily lead to us detecting functions only present
5559         # in such new versions and producing binaries requiring windows 7.0.
5560         # Therefore explicitly set the default to Vista unless the user has
5561         # set something else on the command line.
5562         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
5563         # family. For these cases, configure is free to use any functions
5564         # found in the SDK headers by default. (Alternatively, we could force
5565         # _WIN32_WINNT to 0x0602 in that case.)
5566         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
5567             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
5568 #ifdef WINAPI_FAMILY
5569 #include <winapifamily.h>
5570 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
5571 #error not desktop
5572 #endif
5573 #endif
5574 EOF
5575         if [ "$pfx" = "" ]; then
5576             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5577             check_func strtoull || add_cflags -Dstrtoull=_strtoui64
5578         fi
5579     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
5580         eval ${pfx}libc_type=klibc
5581     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
5582         eval ${pfx}libc_type=bionic
5583     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
5584         eval ${pfx}libc_type=solaris
5585         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
5586     elif test_${pfx}cpp_condition sys/version.h "defined __DJGPP__"; then
5587         eval ${pfx}libc_type=djgpp
5588         add_cppflags -U__STRICT_ANSI__
5589         add_cflags "-include $source_path/compat/djgpp/math.h"
5590         add_compat djgpp/math.o
5591     fi
5592     test_${pfx}cc <<EOF
5593 #include <time.h>
5594 void *v = localtime_r;
5595 EOF
5596 test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
5597 #include <time.h>
5598 void *v = localtime_r;
5599 EOF
5600
5601     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
5602 }
5603
5604 probe_libc
5605 probe_libc host_
5606
5607 # hacks for compiler/libc/os combinations
5608
5609 case $libc_type in
5610     bionic)
5611         add_compat strtod.o strtod=avpriv_strtod
5612         ;;
5613 esac
5614
5615 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
5616     add_cppflags '-I\$(SRC_PATH)/compat/float'
5617
5618 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
5619
5620 set_default libdir
5621 : ${shlibdir_default:="$libdir"}
5622 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
5623
5624 set_default $PATHS_LIST
5625 set_default nm
5626
5627 disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
5628
5629 enable_weak_pic() {
5630     disabled pic && return
5631     enable pic
5632     add_cppflags -DPIC
5633     case "$target_os" in
5634     mingw*|cygwin*|win*)
5635         ;;
5636     *)
5637         add_cflags -fPIC
5638         add_asflags -fPIC
5639         ;;
5640     esac
5641 }
5642
5643 enabled pic && enable_weak_pic
5644
5645 test_cc <<EOF || die "Symbol mangling check failed."
5646 int ff_extern;
5647 EOF
5648 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
5649 extern_prefix=${sym%%ff_extern*}
5650
5651 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
5652
5653 for restrict_keyword in restrict __restrict__ __restrict ""; do
5654     test_code cc "" "char * $restrict_keyword p" && break
5655 done
5656
5657 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
5658
5659 # The global variable ensures the bits appear unchanged in the object file.
5660 test_cc <<EOF || die "endian test failed"
5661 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
5662 EOF
5663 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
5664
5665 check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
5666
5667 if ! enabled ppc64 || enabled bigendian; then
5668     disable vsx
5669 fi
5670
5671 check_gas() {
5672     log "check_gas using '$as' as AS"
5673     # :vararg is used on aarch64, arm and ppc altivec
5674     check_as vararg "
5675 .macro m n, y:vararg=0
5676 \n: .int \y
5677 .endm
5678 m x" || return 1
5679     # .altmacro is only used in arm asm
5680     ! enabled arm || check_as gnu_as ".altmacro"
5681 }
5682
5683 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
5684     nogas=:
5685     enabled_any arm aarch64 && nogas=die
5686     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
5687     as_noop=-v
5688
5689     case $as_type in
5690         arm*) gaspp_as_type=armasm; as_noop=-h ;;
5691         gcc)  gaspp_as_type=gas ;;
5692         *)    gaspp_as_type=$as_type ;;
5693     esac
5694
5695     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
5696
5697     test "${as#*gas-preprocessor.pl}" != "$as" ||
5698     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
5699         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
5700
5701     if ! check_gas ; then
5702         as=${gas:=$as}
5703         check_gas || \
5704             $nogas "GNU assembler not found, install/update gas-preprocessor"
5705     fi
5706
5707     check_as as_func ".func test
5708                       .endfunc"
5709 fi
5710
5711 check_inline_asm inline_asm_labels '"1:\n"'
5712
5713 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
5714
5715 if enabled aarch64; then
5716     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
5717     # internal assembler in clang 3.3 does not support this instruction
5718     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
5719     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
5720
5721     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
5722
5723 elif enabled alpha; then
5724
5725     check_cflags -mieee
5726
5727 elif enabled arm; then
5728
5729     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
5730     test_cpp_condition stddef.h "defined __thumb__" && test_cc <<EOF && enable_weak thumb
5731 float func(float a, float b){ return a+b; }
5732 EOF
5733     enabled thumb && check_cflags -mthumb || check_cflags -marm
5734
5735     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
5736         :
5737     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
5738         :
5739     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
5740         case "${cross_prefix:-$cc}" in
5741             *hardfloat*) enable vfp_args; fpabi=vfp ;;
5742             *) check_ld "cc" vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
5743 __asm__ (".eabi_attribute 28, 1");
5744 int main(void) { return 0; }
5745 EOF
5746         esac
5747         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
5748     fi
5749
5750     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
5751     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
5752     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
5753     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
5754     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
5755     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
5756     enabled setend  && check_insn setend  'setend be'
5757
5758     [ $target_os = linux ] || [ $target_os = android ] ||
5759         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
5760             $ARCH_EXT_LIST_ARM
5761
5762     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
5763
5764     check_as as_arch_directive ".arch armv7-a"
5765     check_as as_dn_directive   "ra .dn d0.i16"
5766     check_as as_fpu_directive  ".fpu neon"
5767
5768     # llvm's integrated assembler supports .object_arch from llvm 3.5
5769     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
5770         check_as as_object_arch ".object_arch armv4"
5771
5772     # MS armasm fails to assemble our PIC constructs
5773     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
5774
5775 elif enabled mips; then
5776
5777     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
5778     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
5779     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
5780
5781     # Enable minimum ISA based on selected options
5782     if enabled mips64; then
5783         enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
5784         enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
5785         disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
5786     else
5787         enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
5788         enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
5789         enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
5790         disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
5791     fi
5792
5793     enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
5794     enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
5795     enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_headers msa.h || disable msa
5796     enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
5797     enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
5798     enabled msa && enabled msa2 && check_inline_asm_flags msa2 '"nxbits.any.b $w0, $w0"' '-mmsa2' && check_headers msa2.h || disable msa2
5799
5800     if enabled bigendian && enabled msa; then
5801         disable msa
5802     fi
5803
5804 elif enabled parisc; then
5805
5806     if enabled gcc; then
5807         case $($cc -dumpversion) in
5808             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
5809         esac
5810     fi
5811
5812 elif enabled ppc; then
5813
5814     enable local_aligned
5815
5816     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
5817     check_inline_asm ibm_asm   '"add 0, 0, 0"'
5818     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
5819     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5820
5821     if enabled altivec; then
5822         check_cflags -maltivec -mabi=altivec
5823
5824         # check if our compiler supports Motorola AltiVec C API
5825         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
5826                                     vector signed int v2 = (vector signed int) { 1 };
5827                                     v1 = vec_add(v1, v2);"
5828
5829         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5830     fi
5831
5832     if enabled vsx; then
5833         check_cflags -mvsx &&
5834         check_cc vsx altivec.h "int v[4] = { 0 };
5835                                 vector signed int v1 = vec_vsx_ld(0, v);"
5836     fi
5837
5838     if enabled power8; then
5839         check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
5840     fi
5841
5842 elif enabled x86; then
5843
5844     check_builtin rdtsc    intrin.h   "__rdtsc()"
5845     check_builtin mm_empty mmintrin.h "_mm_empty()"
5846
5847     enable local_aligned
5848
5849     # check whether EBP is available on x86
5850     # As 'i' is stored on the stack, this program will crash
5851     # if the base pointer is used to access it because the
5852     # base pointer is cleared in the inline assembly code.
5853     check_exec_crash <<EOF && enable ebp_available
5854 volatile int i=0;
5855 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5856 return i;
5857 EOF
5858
5859     # check whether EBX is available on x86
5860     check_inline_asm ebx_available '""::"b"(0)' &&
5861         check_inline_asm ebx_available '"":::"%ebx"'
5862
5863     # check whether xmm clobbers are supported
5864     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5865
5866     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5867         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5868
5869     # check whether binutils is new enough to compile SSSE3/MMXEXT
5870     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5871     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5872
5873     probe_x86asm(){
5874         x86asmexe_probe=$1
5875         if test_cmd $x86asmexe_probe -v; then
5876             x86asmexe=$x86asmexe_probe
5877             x86asm_type=nasm
5878             x86asm_debug="-g -F dwarf"
5879             X86ASMDEP=
5880             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
5881         elif test_cmd $x86asmexe_probe --version; then
5882             x86asmexe=$x86asmexe_probe
5883             x86asm_type=yasm
5884             x86asm_debug="-g dwarf2"
5885             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
5886             X86ASM_DEPFLAGS=
5887         fi
5888         check_x86asm x86asm "movbe ecx, [5]"
5889     }
5890
5891     if ! disabled_any asm mmx x86asm; then
5892         disable x86asm
5893         for program in $x86asmexe nasm yasm; do
5894             probe_x86asm $program && break
5895         done
5896         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
5897         X86ASMFLAGS="-f $objformat"
5898         enabled pic               && append X86ASMFLAGS "-DPIC"
5899         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
5900         case "$objformat" in
5901             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
5902         esac
5903
5904         check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
5905         check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
5906         check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
5907         check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
5908         check_x86asm cpunop          "CPU amdnop"
5909     fi
5910
5911     case "$cpu" in
5912         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5913             disable fast_clz
5914         ;;
5915     esac
5916
5917 fi
5918
5919 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
5920
5921 check_ldflags -Wl,--as-needed
5922 check_ldflags -Wl,-z,noexecstack
5923
5924 if ! disabled network; then
5925     check_func getaddrinfo $network_extralibs
5926     check_func inet_aton $network_extralibs
5927
5928     check_type netdb.h "struct addrinfo"
5929     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5930     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5931     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5932     check_type poll.h "struct pollfd"
5933     check_type netinet/sctp.h "struct sctp_event_subscribe"
5934     check_struct "sys/socket.h" "struct msghdr" msg_flags
5935     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5936     check_type netinet/in.h "struct sockaddr_in6"
5937     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5938     check_type "sys/types.h sys/socket.h" socklen_t
5939
5940     # Prefer arpa/inet.h over winsock2
5941     if check_headers arpa/inet.h ; then
5942         check_func closesocket
5943     elif check_headers winsock2.h ; then
5944         check_func_headers winsock2.h closesocket -lws2 &&
5945             network_extralibs="-lws2" ||
5946         { check_func_headers winsock2.h closesocket -lws2_32 &&
5947             network_extralibs="-lws2_32"; } || disable winsock2_h network
5948         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5949
5950         check_type ws2tcpip.h socklen_t
5951         check_type ws2tcpip.h "struct addrinfo"
5952         check_type ws2tcpip.h "struct group_source_req"
5953         check_type ws2tcpip.h "struct ip_mreq_source"
5954         check_type ws2tcpip.h "struct ipv6_mreq"
5955         check_type winsock2.h "struct pollfd"
5956         check_struct winsock2.h "struct sockaddr" sa_len
5957         check_type ws2tcpip.h "struct sockaddr_in6"
5958         check_type ws2tcpip.h "struct sockaddr_storage"
5959     else
5960         disable network
5961     fi
5962 fi
5963
5964 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5965 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5966 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5967 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5968 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5969 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5970 check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
5971
5972 case "$custom_allocator" in
5973     jemalloc)
5974         # jemalloc by default does not use a prefix
5975         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5976     ;;
5977     tcmalloc)
5978         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
5979         malloc_prefix=tc_
5980     ;;
5981 esac
5982
5983 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5984 check_func  ${malloc_prefix}memalign            && enable memalign
5985 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5986
5987 check_func  access
5988 check_func_headers stdlib.h arc4random
5989 check_lib   clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
5990 check_func  fcntl
5991 check_func  fork
5992 check_func  gethrtime
5993 check_func  getopt
5994 check_func  getrusage
5995 check_func  gettimeofday
5996 check_func  isatty
5997 check_func  mkstemp
5998 check_func  mmap
5999 check_func  mprotect
6000 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
6001 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
6002 check_func  sched_getaffinity
6003 check_func  setrlimit
6004 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
6005 check_func  strerror_r
6006 check_func  sysconf
6007 check_func  sysctl
6008 check_func  usleep
6009
6010 check_func_headers conio.h kbhit
6011 check_func_headers io.h setmode
6012 check_func_headers lzo/lzo1x.h lzo1x_999_compress
6013 check_func_headers mach/mach_time.h mach_absolute_time
6014 check_func_headers stdlib.h getenv
6015 check_func_headers sys/stat.h lstat
6016
6017 check_func_headers windows.h GetProcessAffinityMask
6018 check_func_headers windows.h GetProcessTimes
6019 check_func_headers windows.h GetSystemTimeAsFileTime
6020 check_func_headers windows.h LoadLibrary
6021 check_func_headers windows.h MapViewOfFile
6022 check_func_headers windows.h PeekNamedPipe
6023 check_func_headers windows.h SetConsoleTextAttribute
6024 check_func_headers windows.h SetConsoleCtrlHandler
6025 check_func_headers windows.h Sleep
6026 check_func_headers windows.h VirtualAlloc
6027 check_func_headers glob.h glob
6028 enabled xlib &&
6029     check_lib xlib "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
6030
6031 check_headers direct.h
6032 check_headers dirent.h
6033 check_headers dxgidebug.h
6034 check_headers dxva.h
6035 check_headers dxva2api.h -D_WIN32_WINNT=0x0600
6036 check_headers io.h
6037 check_headers linux/perf_event.h
6038 check_headers libcrystalhd/libcrystalhd_if.h
6039 check_headers malloc.h
6040 check_headers net/udplite.h
6041 check_headers poll.h
6042 check_headers sys/param.h
6043 check_headers sys/resource.h
6044 check_headers sys/select.h
6045 check_headers sys/time.h
6046 check_headers sys/un.h
6047 check_headers termios.h
6048 check_headers unistd.h
6049 check_headers valgrind/valgrind.h
6050 check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
6051 check_headers windows.h
6052 check_headers X11/extensions/XvMClib.h
6053 check_headers asm/types.h
6054
6055 # it seems there are versions of clang in some distros that try to use the
6056 # gcc headers, which explodes for stdatomic
6057 # so we also check that atomics actually work here
6058 check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
6059
6060 check_lib advapi32 "windows.h"            RegCloseKey          -ladvapi32
6061 check_lib bcrypt   "windows.h bcrypt.h"   BCryptGenRandom      -lbcrypt &&
6062     check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
6063 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
6064 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
6065 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
6066
6067 check_lib android android/native_window.h ANativeWindow_acquire -landroid
6068 check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
6069 check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
6070
6071 enabled appkit       && check_apple_framework AppKit
6072 enabled audiotoolbox && check_apple_framework AudioToolbox
6073 enabled avfoundation && check_apple_framework AVFoundation
6074 enabled coreimage    && check_apple_framework CoreImage
6075 enabled videotoolbox && check_apple_framework VideoToolbox
6076
6077 check_apple_framework CoreFoundation
6078 check_apple_framework CoreMedia
6079 check_apple_framework CoreVideo
6080
6081 enabled avfoundation && {
6082     disable coregraphics applicationservices
6083     check_lib coregraphics        CoreGraphics/CoreGraphics.h               CGGetActiveDisplayList "-framework CoreGraphics" ||
6084     check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
6085
6086 enabled videotoolbox && {
6087     check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
6088     check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
6089     check_func_headers CoreVideo/CVPixelBuffer.h kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange "-framework CoreVideo"
6090     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ "-framework CoreVideo"
6091     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2100_HLG "-framework CoreVideo"
6092     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_Linear "-framework CoreVideo"
6093 }
6094
6095 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
6096
6097 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6098 check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
6099 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
6100 check_type "windows.h d3d11.h" "ID3D11VideoContext"
6101 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
6102
6103 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
6104 check_type "vdpau/vdpau.h" "VdpPictureInfoVP9"
6105
6106 if [ -z "$nvccflags" ]; then
6107     nvccflags=$nvccflags_default
6108 fi
6109
6110 if enabled x86_64 || enabled ppc64 || enabled aarch64; then
6111     nvccflags="$nvccflags -m64"
6112 else
6113     nvccflags="$nvccflags -m32"
6114 fi
6115
6116 if enabled cuda_nvcc; then
6117     nvccflags="$nvccflags -ptx"
6118 else
6119     nvccflags="$nvccflags -S -nocudalib -nocudainc --cuda-device-only -include ${source_link}/compat/cuda/cuda_runtime.h"
6120     check_nvcc cuda_llvm
6121 fi
6122
6123 if ! disabled ffnvcodec; then
6124     ffnv_hdr_list="ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h"
6125     check_pkg_config ffnvcodec "ffnvcodec >= 9.0.18.0" "$ffnv_hdr_list" "" || \
6126       check_pkg_config ffnvcodec "ffnvcodec >= 8.2.15.8 ffnvcodec < 8.3" "$ffnv_hdr_list" "" || \
6127       check_pkg_config ffnvcodec "ffnvcodec >= 8.1.24.9 ffnvcodec < 8.2" "$ffnv_hdr_list" "" || \
6128       check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.9 ffnvcodec < 8.1" "$ffnv_hdr_list" ""
6129 fi
6130
6131 check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
6132
6133 if ! disabled w32threads && ! enabled pthreads; then
6134     check_func_headers "windows.h process.h" _beginthreadex &&
6135         check_type "windows.h" CONDITION_VARIABLE &&
6136         check_type "windows.h" INIT_ONCE &&
6137         enable w32threads || disable w32threads
6138     if ! enabled w32threads && enabled winrt; then
6139         check_func_headers "windows.h" CreateThread &&
6140             enable w32threads || disable w32threads
6141     fi
6142 fi
6143
6144 # check for some common methods of building with pthread support
6145 # do this before the optional library checks as some of them require pthreads
6146 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
6147     if check_lib pthreads pthread.h pthread_join   -pthread &&
6148        check_lib pthreads pthread.h pthread_create -pthread; then
6149         add_cflags -pthread
6150     elif check_lib pthreads pthread.h pthread_join   -pthreads &&
6151          check_lib pthreads pthread.h pthread_create -pthreads; then
6152         add_cflags -pthreads
6153     elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
6154          check_lib pthreads pthread.h pthread_create -ldl -pthread; then
6155         add_cflags -ldl -pthread
6156     elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
6157          check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
6158         :
6159     elif check_lib pthreads pthread.h pthread_join   -lpthread &&
6160          check_lib pthreads pthread.h pthread_create -lpthread; then
6161         :
6162     elif check_func pthread_join && check_func pthread_create; then
6163         enable pthreads
6164     fi
6165     check_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
6166
6167     if enabled pthreads; then
6168         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
6169         check_func pthread_cancel $pthreads_extralibs
6170     fi
6171 fi
6172
6173 enabled  zlib && { check_pkg_config zlib zlib "zlib.h" zlibVersion ||
6174                    check_lib zlib   zlib.h      zlibVersion    -lz; }
6175 enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
6176 enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
6177
6178 # On some systems dynamic loading requires no extra linker flags
6179 check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
6180
6181 check_lib libm math.h sin -lm
6182
6183 atan2f_args=2
6184 copysign_args=2
6185 hypot_args=2
6186 ldexpf_args=2
6187 powf_args=2
6188
6189 for func in $MATH_FUNCS; do
6190     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
6191 done
6192
6193 for func in $COMPLEX_FUNCS; do
6194     eval check_complexfunc $func \${${func}_args:-1}
6195 done
6196
6197 # these are off by default, so fail if requested and not available
6198 enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
6199 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
6200 enabled decklink          && { require_headers DeckLinkAPI.h &&
6201                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a090500" || die "ERROR: Decklink API version must be >= 10.9.5."; } }
6202 enabled frei0r            && require_headers "frei0r.h dlfcn.h"
6203 enabled gmp               && require gmp gmp.h mpz_export -lgmp
6204 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
6205 enabled jni               && { [ $target_os = "android" ] && check_headers jni.h && enabled pthreads || die "ERROR: jni not found"; }
6206 enabled ladspa            && require_headers "ladspa.h dlfcn.h"
6207 enabled libaom            && require_pkg_config libaom "aom >= 1.0.0" aom/aom_codec.h aom_codec_version
6208 enabled libaribb24        && { check_pkg_config libaribb24 "aribb24 > 1.0.3" "aribb24/aribb24.h" arib_instance_new ||
6209                                { enabled gpl && require_pkg_config libaribb24 aribb24 "aribb24/aribb24.h" arib_instance_new; } ||
6210                                die "ERROR: libaribb24 requires version higher than 1.0.3 or --enable-gpl."; }
6211 enabled lv2               && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
6212 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
6213 enabled libass            && require_pkg_config libass libass ass/ass.h ass_library_init
6214 enabled libbluray         && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
6215 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
6216 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
6217                              { check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
6218                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
6219 enabled libcaca           && require_pkg_config libcaca caca caca.h caca_create_canvas
6220 enabled libcodec2         && require libcodec2 codec2/codec2.h codec2_create -lcodec2
6221 enabled libdav1d          && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d/dav1d.h" dav1d_version
6222 enabled libdavs2          && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
6223 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
6224 enabled libdrm            && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
6225 enabled libfdk_aac        && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
6226                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
6227                                  warn "using libfdk without pkg-config"; } }
6228 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"
6229 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs
6230 enabled fontconfig        && enable libfontconfig
6231 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
6232 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
6233 enabled libfribidi        && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
6234 enabled libgme            && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
6235                                require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
6236 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
6237                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
6238                                done || die "ERROR: libgsm not found"; }
6239 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
6240 enabled libklvanc         && require libklvanc libklvanc/vanc.h klvanc_context_create -lklvanc
6241 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
6242 enabled liblensfun        && require_pkg_config liblensfun lensfun lensfun.h lf_db_new
6243 # While it may appear that require is being used as a pkg-config
6244 # fallback for libmfx, it is actually being used to detect a different
6245 # installation route altogether.  If libmfx is installed via the Intel
6246 # Media SDK or Intel Media Server Studio, these don't come with
6247 # pkg-config support.  Instead, users should make sure that the build
6248 # can find the libraries and headers through other means.
6249 enabled libmfx            && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
6250                                { require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
6251 if enabled libmfx; then
6252    check_cc MFX_CODEC_VP9 "mfx/mfxvp9.h mfx/mfxstructures.h" "MFX_CODEC_VP9"
6253 fi
6254
6255 enabled libmodplug        && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
6256 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
6257 enabled libmysofa         && { check_pkg_config libmysofa libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine ||
6258                                require libmysofa mysofa.h mysofa_neighborhood_init_withstepdefine -lmysofa $zlib_extralibs; }
6259 enabled libnpp            && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc -lnppidei ||
6260                                check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc -lnppidei ||
6261                                die "ERROR: libnpp not found"; }
6262 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
6263 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
6264 enabled libopencv         && { check_headers opencv2/core/core_c.h &&
6265                                { check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
6266                                  require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
6267                                require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
6268 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
6269 enabled libopenjpeg       && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
6270                                { require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
6271 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
6272 enabled libopus           && {
6273     enabled libopus_decoder && {
6274         require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
6275     }
6276     enabled libopus_encoder && {
6277         require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
6278     }
6279 }
6280 enabled libpulse          && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
6281 enabled librsvg           && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
6282 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
6283 enabled librubberband     && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
6284 enabled libshine          && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
6285 enabled libsmbclient      && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
6286                                require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
6287 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
6288 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
6289 enabled libssh            && require_pkg_config libssh libssh libssh/sftp.h sftp_init
6290 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
6291 enabled libsrt            && require_pkg_config libsrt "srt >= 1.3.0" srt/srt.h srt_socket
6292 enabled libtensorflow     && require libtensorflow tensorflow/c/c_api.h TF_Version -ltensorflow
6293 enabled libtesseract      && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
6294 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
6295 enabled libtls            && require_pkg_config libtls libtls tls.h tls_configure
6296 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
6297                              { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
6298                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
6299 enabled libv4l2           && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
6300 enabled libvidstab        && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
6301 enabled libvmaf           && require_pkg_config libvmaf "libvmaf >= 1.3.9" libvmaf.h compute_vmaf
6302 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
6303 enabled libvorbis         && require_pkg_config libvorbis vorbis vorbis/codec.h vorbis_info_init &&
6304                              require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
6305
6306 enabled libvpx            && {
6307     enabled libvpx_vp8_decoder && {
6308         check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
6309             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"
6310     }
6311     enabled libvpx_vp8_encoder && {
6312         check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
6313             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"
6314     }
6315     enabled libvpx_vp9_decoder && {
6316         check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
6317             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"
6318     }
6319     enabled libvpx_vp9_encoder && {
6320         check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
6321             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"
6322     }
6323     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
6324         die "libvpx enabled but no supported decoders found"
6325     fi
6326 }
6327
6328 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
6329 enabled libwebp           && {
6330     enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
6331     enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
6332 enabled libx264           && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
6333                                { require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
6334                                  warn "using libx264 without pkg-config"; } } &&
6335                              require_cpp_condition libx264 x264.h "X264_BUILD >= 118" &&
6336                              check_cpp_condition libx262 x264.h "X264_MPEG2"
6337 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
6338                              require_cpp_condition libx265 x265.h "X265_BUILD >= 68"
6339 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
6340 enabled libxavs2          && require_pkg_config libxavs2 "xavs2 >= 1.3.0" "stdint.h xavs2.h" xavs2_api_get
6341 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
6342 enabled libzimg           && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
6343 enabled libzmq            && require_pkg_config libzmq "libzmq >= 4.2.1" zmq.h zmq_ctx_new
6344 enabled libzvbi           && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
6345                              { test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
6346                                enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
6347 enabled libxml2           && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
6348 enabled mbedtls           && { check_pkg_config mbedtls mbedtls mbedtls/x509_crt.h mbedtls_x509_crt_init ||
6349                                check_pkg_config mbedtls mbedtls mbedtls/ssl.h mbedtls_ssl_init ||
6350                                check_lib mbedtls mbedtls/ssl.h mbedtls_ssl_init -lmbedtls -lmbedx509 -lmbedcrypto ||
6351                                die "ERROR: mbedTLS not found"; }
6352 enabled mediacodec        && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
6353 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
6354                                { ! enabled cross_compile &&
6355                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
6356                                  add_ldflags -L/opt/vc/lib/ &&
6357                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
6358                                die "ERROR: mmal not found" &&
6359                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
6360 enabled openal            && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
6361                                check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
6362                                die "ERROR: openal not found"; } &&
6363                              { test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
6364                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
6365 enabled opencl            && { check_pkg_config opencl OpenCL CL/cl.h clEnqueueNDRangeKernel ||
6366                                check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
6367                                check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
6368                                die "ERROR: opencl not found"; } &&
6369                              { test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
6370                                test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
6371                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
6372 enabled opengl            && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
6373                                check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
6374                                check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
6375                                check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
6376                                die "ERROR: opengl not found."
6377                              }
6378 enabled omx_rpi           && { test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame ||
6379                                { ! enabled cross_compile &&
6380                                  add_cflags -isystem/opt/vc/include/IL &&
6381                                  test_code cc OMX_Core.h OMX_IndexConfigBrcmVideoRequestIFrame; } ||
6382                                die "ERROR: OpenMAX IL headers from raspberrypi/firmware not found"; } &&
6383                              enable omx
6384 enabled omx               && require_headers OMX_Core.h
6385 enabled openssl           && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
6386                                check_pkg_config openssl openssl openssl/ssl.h SSL_library_init ||
6387                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
6388                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
6389                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
6390                                die "ERROR: openssl not found"; }
6391 enabled pocketsphinx      && require_pkg_config pocketsphinx pocketsphinx pocketsphinx/pocketsphinx.h ps_init
6392 enabled rkmpp             && { require_pkg_config rkmpp rockchip_mpp  rockchip/rk_mpi.h mpp_create &&
6393                                require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
6394                                { enabled libdrm ||
6395                                  die "ERROR: rkmpp requires --enable-libdrm"; }
6396                              }
6397 enabled vapoursynth       && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
6398
6399
6400 if enabled gcrypt; then
6401     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
6402     if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
6403         gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
6404         gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
6405         check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
6406             die "ERROR: gcrypt not found"
6407         add_cflags $gcrypt_cflags
6408     else
6409         require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
6410     fi
6411 fi
6412
6413 if enabled sdl2; then
6414     SDL2_CONFIG="${cross_prefix}sdl2-config"
6415     test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
6416     if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
6417         sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
6418         sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
6419         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
6420         test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
6421         check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
6422             enable sdl2
6423     fi
6424     if test $target_os = "mingw32"; then
6425         sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
6426     fi
6427 fi
6428
6429 if enabled decklink; then
6430     case $target_os in
6431         mingw32*|mingw64*|win32|win64)
6432             decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
6433             decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
6434             ;;
6435     esac
6436 fi
6437
6438 enabled securetransport &&
6439     check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
6440     check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
6441         disable securetransport
6442
6443 enabled securetransport &&
6444     check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
6445
6446 enabled schannel &&
6447     check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
6448     test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
6449     schannel_extralibs="-lsecur32" ||
6450         disable schannel
6451
6452 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
6453 enabled makeinfo \
6454     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
6455     && enable makeinfo_html || disable makeinfo_html
6456 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
6457 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
6458 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
6459 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
6460
6461 # check V4L2 codecs available in the API
6462 if enabled v4l2_m2m; then
6463     check_headers linux/fb.h
6464     check_headers linux/videodev2.h
6465     test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6466     check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
6467     check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
6468     check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
6469     check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
6470     check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
6471     check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
6472     check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
6473     check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
6474     check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
6475     check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
6476 fi
6477
6478 check_headers sys/videoio.h
6479 test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
6480
6481 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
6482 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
6483 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
6484 # w32api 3.12 had it defined wrong
6485 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
6486
6487 check_type "dshow.h" IBaseFilter
6488
6489 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
6490 check_headers "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
6491     check_headers "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
6492     check_headers "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
6493     check_headers "dev/ic/bt8xx.h"
6494
6495 if check_struct sys/soundcard.h audio_buf_info bytes; then
6496     enable_sanitized sys/soundcard.h
6497 else
6498     test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
6499     #include <sys/soundcard.h>
6500     audio_buf_info abc;
6501 EOF
6502 fi
6503
6504 enabled alsa && { check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
6505                   check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound; }
6506
6507 enabled libjack &&
6508     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
6509
6510 enabled sndio && check_lib sndio sndio.h sio_open -lsndio
6511
6512 if enabled libcdio; then
6513     check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
6514     check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
6515     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6516     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
6517     die "ERROR: No usable libcdio/cdparanoia found"
6518 fi
6519
6520 enabled libxcb && check_pkg_config libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
6521     disable libxcb_shm libxcb_shape libxcb_xfixes
6522
6523 if enabled libxcb; then
6524     enabled libxcb_shm    && check_pkg_config libxcb_shm    xcb-shm    xcb/shm.h    xcb_shm_attach
6525     enabled libxcb_shape  && check_pkg_config libxcb_shape  xcb-shape  xcb/shape.h  xcb_shape_get_rectangles
6526     enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
6527 fi
6528
6529 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
6530
6531 # d3d11va requires linking directly to dxgi and d3d11 if not building for
6532 # the desktop api partition
6533 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
6534 #ifdef WINAPI_FAMILY
6535 #include <winapifamily.h>
6536 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
6537 #error desktop, not uwp
6538 #else
6539 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
6540 #endif
6541 #else
6542 #error no family set
6543 #endif
6544 EOF
6545
6546 enabled vaapi &&
6547     check_pkg_config vaapi "libva >= 0.35.0" "va/va.h" vaInitialize
6548
6549 if enabled vaapi; then
6550     check_pkg_config vaapi_drm "libva-drm" "va/va_drm.h" vaGetDisplayDRM
6551
6552     if enabled xlib; then
6553         check_pkg_config vaapi_x11 "libva-x11" "va/va_x11.h" vaGetDisplay
6554     fi
6555
6556     check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
6557
6558     check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
6559     check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
6560     check_struct "va/va.h va/va_vpp.h" "VAProcPipelineCaps" rotation_flags
6561     check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
6562     check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
6563     check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
6564     check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
6565 fi
6566
6567 if enabled_all opencl libdrm ; then
6568     check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
6569         enable opencl_drm_beignet
6570     check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
6571         enable opencl_drm_arm
6572 fi
6573
6574 if enabled_all opencl vaapi ; then
6575     if enabled opencl_drm_beignet ; then
6576         enable opencl_vaapi_beignet
6577     else
6578         check_type "CL/cl.h CL/cl_va_api_media_sharing_intel.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
6579             enable opencl_vaapi_intel_media
6580     fi
6581 fi
6582
6583 if enabled_all opencl dxva2 ; then
6584     check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
6585         enable opencl_dxva2
6586 fi
6587
6588 if enabled_all opencl d3d11va ; then
6589     check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
6590         enable opencl_d3d11
6591 fi
6592
6593 enabled vdpau &&
6594     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
6595
6596 enabled vdpau &&
6597     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
6598
6599 enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
6600
6601 if enabled x86; then
6602     case $target_os in
6603         mingw32*|mingw64*|win32|win64|linux|cygwin*)
6604             ;;
6605         *)
6606             disable ffnvcodec cuvid nvdec nvenc
6607             ;;
6608     esac
6609 elif enabled ppc64 && ! enabled bigendian; then
6610     case $target_os in
6611         linux)
6612             ;;
6613         *)
6614             disable ffnvcodec cuvid nvdec nvenc
6615             ;;
6616     esac
6617 else
6618     disable ffnvcodec cuvid nvdec nvenc
6619 fi
6620
6621 enabled ffnvcodec && enable cuda
6622
6623 enabled nvenc &&
6624     test_cc -I$source_path <<EOF || disable nvenc
6625 #include <ffnvcodec/nvEncodeAPI.h>
6626 NV_ENCODE_API_FUNCTION_LIST flist;
6627 void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
6628 int main(void) { return 0; }
6629 EOF
6630
6631 enabled amf &&
6632     check_cpp_condition amf "AMF/core/Version.h" \
6633         "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400090000"
6634
6635 # Funny iconv installations are not unusual, so check it after all flags have been set
6636 if enabled libc_iconv; then
6637     check_func_headers iconv.h iconv
6638 elif enabled iconv; then
6639     check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
6640 fi
6641
6642 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
6643
6644 # add some useful compiler flags if supported
6645 check_cflags -Wdeclaration-after-statement
6646 check_cflags -Wall
6647 check_cflags -Wdisabled-optimization
6648 check_cflags -Wpointer-arith
6649 check_cflags -Wredundant-decls
6650 check_cflags -Wwrite-strings
6651 check_cflags -Wtype-limits
6652 check_cflags -Wundef
6653 check_cflags -Wmissing-prototypes
6654 check_cflags -Wno-pointer-to-int-cast
6655 check_cflags -Wstrict-prototypes
6656 check_cflags -Wempty-body
6657
6658 if enabled extra_warnings; then
6659     check_cflags -Wcast-qual
6660     check_cflags -Wextra
6661     check_cflags -Wpedantic
6662 fi
6663
6664 check_disable_warning(){
6665     warning_flag=-W${1#-Wno-}
6666     test_cflags $unknown_warning_flags $warning_flag && add_cflags $1
6667 }
6668
6669 test_cflags -Werror=unused-command-line-argument &&
6670     append unknown_warning_flags "-Werror=unused-command-line-argument"
6671 test_cflags -Werror=unknown-warning-option &&
6672     append unknown_warning_flags "-Werror=unknown-warning-option"
6673
6674 check_disable_warning -Wno-parentheses
6675 check_disable_warning -Wno-switch
6676 check_disable_warning -Wno-format-zero-length
6677 check_disable_warning -Wno-pointer-sign
6678 check_disable_warning -Wno-unused-const-variable
6679 check_disable_warning -Wno-bool-operation
6680 check_disable_warning -Wno-char-subscripts
6681
6682 check_disable_warning_headers(){
6683     warning_flag=-W${1#-Wno-}
6684     test_cflags $warning_flag && add_cflags_headers $1
6685 }
6686
6687 check_disable_warning_headers -Wno-deprecated-declarations
6688 check_disable_warning_headers -Wno-unused-variable
6689
6690 test_cc <<EOF && enable blocks_extension
6691 void (^block)(void);
6692 EOF
6693
6694 # add some linker flags
6695 check_ldflags -Wl,--warn-common
6696 check_ldflags -Wl,-rpath-link=:libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
6697 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
6698 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
6699
6700 # add some strip flags
6701 check_stripflags -x
6702
6703 enabled neon_clobber_test &&
6704     check_ldflags -Wl,--wrap,avcodec_open2              \
6705                   -Wl,--wrap,avcodec_decode_audio4      \
6706                   -Wl,--wrap,avcodec_decode_video2      \
6707                   -Wl,--wrap,avcodec_decode_subtitle2   \
6708                   -Wl,--wrap,avcodec_encode_audio2      \
6709                   -Wl,--wrap,avcodec_encode_video2      \
6710                   -Wl,--wrap,avcodec_encode_subtitle    \
6711                   -Wl,--wrap,avcodec_send_packet        \
6712                   -Wl,--wrap,avcodec_receive_packet     \
6713                   -Wl,--wrap,avcodec_send_frame         \
6714                   -Wl,--wrap,avcodec_receive_frame      \
6715                   -Wl,--wrap,swr_convert                \
6716                   -Wl,--wrap,avresample_convert ||
6717     disable neon_clobber_test
6718
6719 enabled xmm_clobber_test &&
6720     check_ldflags -Wl,--wrap,avcodec_open2              \
6721                   -Wl,--wrap,avcodec_decode_audio4      \
6722                   -Wl,--wrap,avcodec_decode_video2      \
6723                   -Wl,--wrap,avcodec_decode_subtitle2   \
6724                   -Wl,--wrap,avcodec_encode_audio2      \
6725                   -Wl,--wrap,avcodec_encode_video2      \
6726                   -Wl,--wrap,avcodec_encode_subtitle    \
6727                   -Wl,--wrap,avcodec_send_packet        \
6728                   -Wl,--wrap,avcodec_receive_packet     \
6729                   -Wl,--wrap,avcodec_send_frame         \
6730                   -Wl,--wrap,avcodec_receive_frame      \
6731                   -Wl,--wrap,swr_convert                \
6732                   -Wl,--wrap,avresample_convert         \
6733                   -Wl,--wrap,sws_scale ||
6734     disable xmm_clobber_test
6735
6736 check_ld "cc" proper_dce <<EOF
6737 extern const int array[512];
6738 static inline int func(void) { return array[0]; }
6739 int main(void) { return 0; }
6740 EOF
6741
6742 if enabled proper_dce; then
6743     echo "X { local: *; };" > $TMPV
6744     if test_ldflags -Wl,${version_script},$TMPV; then
6745         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
6746         quotes='""'
6747         test_cc <<EOF && enable symver_asm_label
6748 void ff_foo(void) __asm__ ("av_foo@VERSION");
6749 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
6750 EOF
6751         test_cc <<EOF && enable symver_gnu_asm
6752 __asm__(".symver ff_foo,av_foo@VERSION");
6753 void ff_foo(void) {}
6754 EOF
6755     fi
6756 fi
6757
6758 if [ -z "$optflags" ]; then
6759     if enabled small; then
6760         optflags=$cflags_size
6761     elif enabled optimizations; then
6762         optflags=$cflags_speed
6763     else
6764         optflags=$cflags_noopt
6765     fi
6766 fi
6767
6768 check_optflags(){
6769     check_cflags "$@"
6770     enabled lto && check_ldflags "$@"
6771 }
6772
6773 check_optflags $optflags
6774 check_optflags -fno-math-errno
6775 check_optflags -fno-signed-zeros
6776
6777 if enabled lto; then
6778     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
6779     check_cflags  -flto
6780     check_ldflags -flto $cpuflags
6781     disable inline_asm_direct_symbol_refs
6782 fi
6783
6784 enabled ftrapv && check_cflags -ftrapv
6785
6786 test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
6787 int x;
6788 EOF
6789
6790
6791 if enabled icc; then
6792     # Just warnings, no remarks
6793     check_cflags -w1
6794     # -wd: Disable following warnings
6795     # 144, 167, 556: -Wno-pointer-sign
6796     # 188: enumerated type mixed with another type
6797     # 1292: attribute "foo" ignored
6798     # 1419: external declaration in primary source file
6799     # 10006: ignoring unknown option -fno-signed-zeros
6800     # 10148: ignoring unknown option -Wno-parentheses
6801     # 10156: ignoring option '-W'; no argument required
6802     # 13200: No EMMS instruction before call to function
6803     # 13203: No EMMS instruction before return from function
6804     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
6805     # 11030: Warning unknown option --as-needed
6806     # 10156: ignoring option '-export'; no argument required
6807     check_ldflags -wd10156,11030
6808     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
6809     enable ebp_available
6810     # The test above does not test linking
6811     enabled lto && disable symver_asm_label
6812     if enabled x86_32; then
6813         icc_version=$($cc -dumpversion)
6814         test ${icc_version%%.*} -ge 11 &&
6815             check_cflags -falign-stack=maintain-16-byte ||
6816             disable aligned_stack
6817     fi
6818 elif enabled gcc; then
6819     check_optflags -fno-tree-vectorize
6820     check_cflags -Werror=format-security
6821     check_cflags -Werror=implicit-function-declaration
6822     check_cflags -Werror=missing-prototypes
6823     check_cflags -Werror=return-type
6824     check_cflags -Werror=vla
6825     check_cflags -Wformat
6826     check_cflags -fdiagnostics-color=auto
6827     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
6828     if enabled x86_32; then
6829         case $target_os in
6830         *bsd*)
6831             # BSDs don't guarantee a 16 byte aligned stack, but we can
6832             # request GCC to try to maintain 16 byte alignment throughout
6833             # function calls. Library entry points that might call assembly
6834             # functions align the stack. (The parameter means 2^4 bytes.)
6835             check_cflags -mpreferred-stack-boundary=4
6836             ;;
6837         esac
6838     fi
6839 elif enabled llvm_gcc; then
6840     check_cflags -mllvm -stack-alignment=16
6841 elif enabled clang; then
6842     if enabled x86_32; then
6843         # Clang doesn't support maintaining alignment without assuming the
6844         # same alignment in every function. If 16 byte alignment would be
6845         # enabled, one would also have to either add attribute_align_arg on
6846         # every single entry point into the libraries or enable -mstackrealign
6847         # (doing stack realignment in every single function).
6848         case $target_os in
6849         mingw32|win32|*bsd*)
6850             disable aligned_stack
6851             ;;
6852         *)
6853             check_cflags -mllvm -stack-alignment=16
6854             check_cflags -mstack-alignment=16
6855             ;;
6856         esac
6857     else
6858         check_cflags -mllvm -stack-alignment=16
6859         check_cflags -mstack-alignment=16
6860     fi
6861     check_cflags -Qunused-arguments
6862     check_cflags -Werror=implicit-function-declaration
6863     check_cflags -Werror=missing-prototypes
6864     check_cflags -Werror=return-type
6865 elif enabled cparser; then
6866     add_cflags -Wno-missing-variable-declarations
6867     add_cflags -Wno-empty-statement
6868 elif enabled armcc; then
6869     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
6870     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
6871     # 2523: use of inline assembly is deprecated
6872     add_cflags -W${armcc_opt},--diag_suppress=2523
6873     add_cflags -W${armcc_opt},--diag_suppress=1207
6874     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
6875     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
6876     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
6877     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
6878 elif enabled pathscale; then
6879     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
6880     disable inline_asm
6881 elif enabled_any msvc icl; then
6882     enabled x86_32 && disable aligned_stack
6883     enabled_all x86_32 debug && add_cflags -Oy-
6884     enabled debug && add_ldflags -debug
6885     enable pragma_deprecated
6886     if enabled icl; then
6887         # -Qansi-alias is basically -fstrict-aliasing, but does not work
6888         # (correctly) on icl 13.x.
6889         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
6890             add_cflags -Qansi-alias
6891         # Some inline asm is not compilable in debug
6892         if enabled debug; then
6893             disable ebp_available
6894             disable ebx_available
6895         fi
6896     fi
6897     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
6898     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
6899     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
6900     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
6901     # (as it ends up if the restrict redefine is done before including stdlib.h), while
6902     # MSVC 2013 and newer can handle it fine.
6903     # If this declspec fails, force including stdlib.h before the restrict redefinition
6904     # happens in config.h.
6905     if [ $restrict_keyword != restrict ]; then
6906         test_cc <<EOF || add_cflags -FIstdlib.h
6907 __declspec($restrict_keyword) void *foo(int);
6908 EOF
6909     fi
6910     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
6911     # Issue has been fixed in MSVC v19.00.24218.
6912     test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
6913         check_cflags -d2SSAOptimizer-
6914     # enable utf-8 source processing on VS2015 U2 and newer
6915     test_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
6916         add_cflags -utf-8
6917 fi
6918
6919 for pfx in "" host_; do
6920     varname=${pfx%_}cc_type
6921     eval "type=\$$varname"
6922     if [ "$type" = "msvc" ]; then
6923         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
6924 static inline int foo(int a) { return a; }
6925 EOF
6926     fi
6927 done
6928
6929 case $as_type in
6930     clang)
6931         add_asflags -Qunused-arguments
6932     ;;
6933 esac
6934
6935 case $ld_type in
6936     clang)
6937         check_ldflags -Qunused-arguments
6938     ;;
6939 esac
6940
6941 enable frame_thread_encoder
6942
6943 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
6944
6945 check_deps $CONFIG_LIST       \
6946            $CONFIG_EXTRA      \
6947            $HAVE_LIST         \
6948            $ALL_COMPONENTS    \
6949
6950 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"
6951 enabled avresample && warn "Building with deprecated library libavresample"
6952
6953 case $target_os in
6954 haiku)
6955     disable memalign
6956     disable posix_memalign
6957     ;;
6958 *-dos|freedos|opendos)
6959     if test_cpp_condition sys/version.h "defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 5"; then
6960         disable memalign
6961     fi
6962     ;;
6963 esac
6964
6965 flatten_extralibs(){
6966     nested_entries=
6967     list_name=$1
6968     eval list=\$${1}
6969     for entry in $list; do
6970         entry_copy=$entry
6971         resolve entry_copy
6972         flat_entries=
6973         for e in $entry_copy; do
6974             case $e in
6975                 *_extralibs) nested_entries="$nested_entries$e ";;
6976                           *) flat_entries="$flat_entries$e ";;
6977             esac
6978         done
6979         eval $entry="\$flat_entries"
6980     done
6981     append $list_name "$nested_entries"
6982
6983     resolve nested_entries
6984     if test -n "$(filter '*_extralibs' $nested_entries)"; then
6985         flatten_extralibs $list_name
6986     fi
6987 }
6988
6989 flatten_extralibs_wrapper(){
6990     list_name=$1
6991     flatten_extralibs $list_name
6992     unique $list_name
6993     resolve $list_name
6994     eval $list_name=\$\(\$ldflags_filter \$$list_name\)
6995     eval printf \''%s'\' \""\$$list_name"\"
6996 }
6997
6998 for linkunit in $LIBRARY_LIST; do
6999     unset current_extralibs
7000     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
7001     for comp in ${components}; do
7002         enabled $comp || continue
7003         comp_extralibs="${comp}_extralibs"
7004         append current_extralibs $comp_extralibs
7005     done
7006     eval prepend ${linkunit}_extralibs $current_extralibs
7007 done
7008
7009 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7010     eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
7011 done
7012
7013 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
7014
7015 for thread in $THREADS_LIST; do
7016     if enabled $thread; then
7017         test -n "$thread_type" &&
7018             die "ERROR: Only one thread type must be selected." ||
7019             thread_type="$thread"
7020     fi
7021 done
7022
7023 if disabled stdatomic; then
7024     if enabled atomics_gcc; then
7025         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
7026     elif enabled atomics_win32; then
7027         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
7028     elif enabled atomics_suncc; then
7029         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
7030     elif enabled pthreads; then
7031         add_compat atomics/pthread/stdatomic.o
7032         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
7033     else
7034         enabled threads && die "Threading is enabled, but no atomics are available"
7035         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
7036     fi
7037 fi
7038
7039 # Check if requested libraries were found.
7040 for lib in $AUTODETECT_LIBS; do
7041     requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
7042 done
7043
7044 enabled zlib && add_cppflags -DZLIB_CONST
7045
7046 # conditional library dependencies, in any order
7047 enabled afftdn_filter       && prepend avfilter_deps "avcodec"
7048 enabled afftfilt_filter     && prepend avfilter_deps "avcodec"
7049 enabled afir_filter         && prepend avfilter_deps "avcodec"
7050 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
7051 enabled aresample_filter    && prepend avfilter_deps "swresample"
7052 enabled atempo_filter       && prepend avfilter_deps "avcodec"
7053 enabled bm3d_filter         && prepend avfilter_deps "avcodec"
7054 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
7055 enabled convolve_filter     && prepend avfilter_deps "avcodec"
7056 enabled deconvolve_filter   && prepend avfilter_deps "avcodec"
7057 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
7058 enabled elbg_filter         && prepend avfilter_deps "avcodec"
7059 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
7060 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
7061 enabled firequalizer_filter && prepend avfilter_deps "avcodec"
7062 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
7063 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
7064 enabled pan_filter          && prepend avfilter_deps "swresample"
7065 enabled pp_filter           && prepend avfilter_deps "postproc"
7066 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
7067 enabled resample_filter && prepend avfilter_deps "avresample"
7068 enabled sab_filter          && prepend avfilter_deps "swscale"
7069 enabled scale_filter    && prepend avfilter_deps "swscale"
7070 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
7071 enabled sofalizer_filter    && prepend avfilter_deps "avcodec"
7072 enabled showcqt_filter      && prepend avfilter_deps "avformat avcodec swscale"
7073 enabled showfreqs_filter    && prepend avfilter_deps "avcodec"
7074 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
7075 enabled signature_filter    && prepend avfilter_deps "avcodec avformat"
7076 enabled smartblur_filter    && prepend avfilter_deps "swscale"
7077 enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
7078 enabled spp_filter          && prepend avfilter_deps "avcodec"
7079 enabled sr_filter           && prepend avfilter_deps "avformat swscale"
7080 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
7081 enabled uspp_filter         && prepend avfilter_deps "avcodec"
7082 enabled zoompan_filter      && prepend avfilter_deps "swscale"
7083
7084 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
7085
7086 #FIXME
7087 enabled_any sdl2_outdev opengl_outdev && enabled sdl2 &&
7088     add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
7089
7090 enabled opus_decoder    && prepend avcodec_deps "swresample"
7091
7092 # reorder the items at var $1 to align with the items order at var $2 .
7093 # die if an item at $1 is not at $2 .
7094 reorder_by(){
7095     eval rb_in=\$$1
7096     eval rb_ordered=\$$2
7097
7098     for rb in $rb_in; do
7099         is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
7100     done
7101
7102     rb_out=
7103     for rb in $rb_ordered; do
7104         is_in $rb $rb_in && rb_out="$rb_out$rb "
7105     done
7106     eval $1=\$rb_out
7107 }
7108
7109 # deps-expand fflib $1:  N x {append all expanded deps; unique}
7110 # within a set of N items, N expansions are enough to expose a cycle.
7111 expand_deps(){
7112     unique ${1}_deps  # required for the early break test.
7113     for dummy in $LIBRARY_LIST; do  # N iteratios
7114         eval deps=\$${1}_deps
7115         append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
7116         unique ${1}_deps
7117         eval '[ ${#deps} = ${#'${1}_deps'} ]' && break  # doesn't expand anymore
7118     done
7119
7120     eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
7121     reorder_by ${1}_deps LIBRARY_LIST  # linking order is expected later
7122 }
7123
7124 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
7125 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
7126
7127 map 'expand_deps $v' $LIBRARY_LIST
7128
7129 if test "$quiet" != "yes"; then
7130
7131 echo "install prefix            $prefix"
7132 echo "source path               $source_path"
7133 echo "C compiler                $cc"
7134 echo "C library                 $libc_type"
7135 if test "$host_cc" != "$cc"; then
7136     echo "host C compiler           $host_cc"
7137     echo "host C library            $host_libc_type"
7138 fi
7139 echo "ARCH                      $arch ($cpu)"
7140 if test "$build_suffix" != ""; then
7141     echo "build suffix              $build_suffix"
7142 fi
7143 if test "$progs_suffix" != ""; then
7144     echo "progs suffix              $progs_suffix"
7145 fi
7146 if test "$extra_version" != ""; then
7147     echo "version string suffix     $extra_version"
7148 fi
7149 echo "big-endian                ${bigendian-no}"
7150 echo "runtime cpu detection     ${runtime_cpudetect-no}"
7151 if enabled x86; then
7152     echo "standalone assembly       ${x86asm-no}"
7153     echo "x86 assembler             ${x86asmexe}"
7154     echo "MMX enabled               ${mmx-no}"
7155     echo "MMXEXT enabled            ${mmxext-no}"
7156     echo "3DNow! enabled            ${amd3dnow-no}"
7157     echo "3DNow! extended enabled   ${amd3dnowext-no}"
7158     echo "SSE enabled               ${sse-no}"
7159     echo "SSSE3 enabled             ${ssse3-no}"
7160     echo "AESNI enabled             ${aesni-no}"
7161     echo "AVX enabled               ${avx-no}"
7162     echo "AVX2 enabled              ${avx2-no}"
7163     echo "AVX-512 enabled           ${avx512-no}"
7164     echo "XOP enabled               ${xop-no}"
7165     echo "FMA3 enabled              ${fma3-no}"
7166     echo "FMA4 enabled              ${fma4-no}"
7167     echo "i686 features enabled     ${i686-no}"
7168     echo "CMOV is fast              ${fast_cmov-no}"
7169     echo "EBX available             ${ebx_available-no}"
7170     echo "EBP available             ${ebp_available-no}"
7171 fi
7172 if enabled aarch64; then
7173     echo "NEON enabled              ${neon-no}"
7174     echo "VFP enabled               ${vfp-no}"
7175 fi
7176 if enabled arm; then
7177     echo "ARMv5TE enabled           ${armv5te-no}"
7178     echo "ARMv6 enabled             ${armv6-no}"
7179     echo "ARMv6T2 enabled           ${armv6t2-no}"
7180     echo "VFP enabled               ${vfp-no}"
7181     echo "NEON enabled              ${neon-no}"
7182     echo "THUMB enabled             ${thumb-no}"
7183 fi
7184 if enabled mips; then
7185     echo "MIPS FPU enabled          ${mipsfpu-no}"
7186     echo "MIPS DSP R1 enabled       ${mipsdsp-no}"
7187     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
7188     echo "MIPS MSA enabled          ${msa-no}"
7189     echo "MIPS MSA2 enabled         ${msa2-no}"
7190     echo "LOONGSON MMI enabled      ${mmi-no}"
7191 fi
7192 if enabled ppc; then
7193     echo "AltiVec enabled           ${altivec-no}"
7194     echo "VSX enabled               ${vsx-no}"
7195     echo "POWER8 enabled            ${power8-no}"
7196     echo "PPC 4xx optimizations     ${ppc4xx-no}"
7197     echo "dcbzl available           ${dcbzl-no}"
7198 fi
7199 echo "debug symbols             ${debug-no}"
7200 echo "strip symbols             ${stripping-no}"
7201 echo "optimize for size         ${small-no}"
7202 echo "optimizations             ${optimizations-no}"
7203 echo "static                    ${static-no}"
7204 echo "shared                    ${shared-no}"
7205 echo "postprocessing support    ${postproc-no}"
7206 echo "network support           ${network-no}"
7207 echo "threading support         ${thread_type-no}"
7208 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
7209 echo "texi2html enabled         ${texi2html-no}"
7210 echo "perl enabled              ${perl-no}"
7211 echo "pod2man enabled           ${pod2man-no}"
7212 echo "makeinfo enabled          ${makeinfo-no}"
7213 echo "makeinfo supports HTML    ${makeinfo_html-no}"
7214 test -n "$random_seed" &&
7215     echo "random seed               ${random_seed}"
7216 echo
7217
7218 echo "External libraries:"
7219 print_enabled '' $EXTERNAL_LIBRARY_LIST $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
7220 echo
7221
7222 echo "External libraries providing hardware acceleration:"
7223 print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_LIBRARY_LIST | print_in_columns
7224 echo
7225
7226 echo "Libraries:"
7227 print_enabled '' $LIBRARY_LIST | print_in_columns
7228 echo
7229
7230 echo "Programs:"
7231 print_enabled '' $PROGRAM_LIST | print_in_columns
7232 echo
7233
7234 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
7235     echo "Enabled ${type}s:"
7236     eval list=\$$(toupper $type)_LIST
7237     print_enabled '_*' $list | print_in_columns
7238     echo
7239 done
7240
7241 if test -n "$ignore_tests"; then
7242     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
7243     echo "Ignored FATE tests:"
7244     echo $ignore_tests | print_in_columns
7245     echo
7246 fi
7247
7248 echo "License: $license"
7249
7250 fi # test "$quiet" != "yes"
7251
7252 if test -n "$WARN_IF_GETS_DISABLED_LIST"; then
7253     for cfg in $WARN_IF_GETS_DISABLED_LIST; do
7254         if disabled $cfg; then
7255             varname=${cfg}_disable_reason
7256             eval "warn \"Disabled $cfg because \$$varname\""
7257         fi
7258     done
7259 fi
7260
7261 if test -n "$WARNINGS"; then
7262     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
7263     enabled fatal_warnings && exit 1
7264 fi
7265
7266 test -e Makefile || echo "include $source_path/Makefile" > Makefile
7267
7268 esc(){
7269     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
7270 }
7271
7272 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
7273
7274 enabled stripping || strip="echo skipping strip"
7275 enabled stripping || striptype=""
7276
7277 config_files="$TMPH ffbuild/config.mak doc/config.texi"
7278
7279 cat > ffbuild/config.mak <<EOF
7280 # Automatically generated by configure - do not modify!
7281 ifndef FFMPEG_CONFIG_MAK
7282 FFMPEG_CONFIG_MAK=1
7283 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
7284 prefix=$prefix
7285 LIBDIR=\$(DESTDIR)$libdir
7286 SHLIBDIR=\$(DESTDIR)$shlibdir
7287 INCDIR=\$(DESTDIR)$incdir
7288 BINDIR=\$(DESTDIR)$bindir
7289 DATADIR=\$(DESTDIR)$datadir
7290 DOCDIR=\$(DESTDIR)$docdir
7291 MANDIR=\$(DESTDIR)$mandir
7292 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
7293 INSTALL_NAME_DIR=$install_name_dir
7294 SRC_PATH=$source_path
7295 SRC_LINK=$source_link
7296 ifndef MAIN_MAKEFILE
7297 SRC_PATH:=\$(SRC_PATH:.%=..%)
7298 endif
7299 CC_IDENT=$cc_ident
7300 ARCH=$arch
7301 INTRINSICS=$intrinsics
7302 EXTERN_PREFIX=$extern_prefix
7303 CC=$cc
7304 CXX=$cxx
7305 AS=$as
7306 OBJCC=$objcc
7307 LD=$ld
7308 DEPCC=$dep_cc
7309 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
7310 DEPAS=$as
7311 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
7312 X86ASM=$x86asmexe
7313 DEPX86ASM=$x86asmexe
7314 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
7315 AR=$ar
7316 ARFLAGS=$arflags
7317 AR_O=$ar_o
7318 AR_CMD=$ar
7319 NM_CMD=$nm
7320 RANLIB=$ranlib
7321 STRIP=$strip
7322 STRIPTYPE=$striptype
7323 NVCC=$nvcc
7324 CP=cp -p
7325 LN_S=$ln_s
7326 CPPFLAGS=$CPPFLAGS
7327 CFLAGS=$CFLAGS
7328 CXXFLAGS=$CXXFLAGS
7329 OBJCFLAGS=$OBJCFLAGS
7330 ASFLAGS=$ASFLAGS
7331 NVCCFLAGS=$nvccflags
7332 AS_C=$AS_C
7333 AS_O=$AS_O
7334 OBJCC_C=$OBJCC_C
7335 OBJCC_E=$OBJCC_E
7336 OBJCC_O=$OBJCC_O
7337 CC_C=$CC_C
7338 CC_E=$CC_E
7339 CC_O=$CC_O
7340 CXX_C=$CXX_C
7341 CXX_O=$CXX_O
7342 NVCC_C=$NVCC_C
7343 NVCC_O=$NVCC_O
7344 LD_O=$LD_O
7345 X86ASM_O=$X86ASM_O
7346 LD_LIB=$LD_LIB
7347 LD_PATH=$LD_PATH
7348 DLLTOOL=$dlltool
7349 WINDRES=$windres
7350 DEPWINDRES=$dep_cc
7351 DOXYGEN=$doxygen
7352 LDFLAGS=$LDFLAGS
7353 LDEXEFLAGS=$LDEXEFLAGS
7354 LDSOFLAGS=$LDSOFLAGS
7355 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
7356 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
7357 X86ASMFLAGS=$X86ASMFLAGS
7358 BUILDSUF=$build_suffix
7359 PROGSSUF=$progs_suffix
7360 FULLNAME=$FULLNAME
7361 LIBPREF=$LIBPREF
7362 LIBSUF=$LIBSUF
7363 LIBNAME=$LIBNAME
7364 SLIBPREF=$SLIBPREF
7365 SLIBSUF=$SLIBSUF
7366 EXESUF=$EXESUF
7367 EXTRA_VERSION=$extra_version
7368 CCDEP=$CCDEP
7369 CXXDEP=$CXXDEP
7370 CCDEP_FLAGS=$CCDEP_FLAGS
7371 ASDEP=$ASDEP
7372 ASDEP_FLAGS=$ASDEP_FLAGS
7373 X86ASMDEP=$X86ASMDEP
7374 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
7375 CC_DEPFLAGS=$CC_DEPFLAGS
7376 AS_DEPFLAGS=$AS_DEPFLAGS
7377 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
7378 HOSTCC=$host_cc
7379 HOSTLD=$host_ld
7380 HOSTCFLAGS=$host_cflags
7381 HOSTCPPFLAGS=$host_cppflags
7382 HOSTEXESUF=$HOSTEXESUF
7383 HOSTLDFLAGS=$host_ldflags
7384 HOSTEXTRALIBS=$host_extralibs
7385 DEPHOSTCC=$host_cc
7386 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
7387 HOSTCCDEP=$HOSTCCDEP
7388 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
7389 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
7390 HOSTCC_C=$HOSTCC_C
7391 HOSTCC_O=$HOSTCC_O
7392 HOSTLD_O=$HOSTLD_O
7393 TARGET_EXEC=$target_exec $target_exec_args
7394 TARGET_PATH=$target_path
7395 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
7396 CFLAGS-ffplay=${sdl2_cflags}
7397 CFLAGS_HEADERS=$CFLAGS_HEADERS
7398 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
7399 EXTRALIBS=$extralibs
7400 COMPAT_OBJS=$compat_objs
7401 INSTALL=$install
7402 LIBTARGET=${LIBTARGET}
7403 SLIBNAME=${SLIBNAME}
7404 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
7405 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
7406 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
7407 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
7408 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
7409 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
7410 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
7411 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
7412 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
7413 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
7414 NOREDZONE_FLAGS=$noredzone_flags
7415 LIBFUZZER_PATH=$libfuzzer_path
7416 IGNORE_TESTS=$ignore_tests
7417 EOF
7418
7419 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
7420
7421 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
7422     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
7423 done
7424
7425 cat > $TMPH <<EOF
7426 /* Automatically generated by configure - do not modify! */
7427 #ifndef FFMPEG_CONFIG_H
7428 #define FFMPEG_CONFIG_H
7429 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
7430 #define FFMPEG_LICENSE "$(c_escape $license)"
7431 #define CONFIG_THIS_YEAR 2019
7432 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
7433 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
7434 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
7435 #define av_restrict $restrict_keyword
7436 #define EXTERN_PREFIX "${extern_prefix}"
7437 #define EXTERN_ASM ${extern_prefix}
7438 #define BUILDSUF "$build_suffix"
7439 #define SLIBSUF "$SLIBSUF"
7440 #define HAVE_MMX2 HAVE_MMXEXT
7441 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
7442 EOF
7443
7444 test -n "$assert_level" &&
7445     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
7446
7447 test -n "$malloc_prefix" &&
7448     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
7449
7450 if enabled x86asm; then
7451     append config_files $TMPASM
7452     cat > $TMPASM <<EOF
7453 ; Automatically generated by configure - do not modify!
7454 EOF
7455 fi
7456
7457 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
7458
7459
7460 mkdir -p doc
7461 mkdir -p tests
7462 mkdir -p tests/api
7463 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
7464
7465 print_config ARCH_   "$config_files" $ARCH_LIST
7466 print_config HAVE_   "$config_files" $HAVE_LIST
7467 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
7468                                      $CONFIG_EXTRA      \
7469                                      $ALL_COMPONENTS    \
7470
7471 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
7472 echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
7473
7474 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
7475 cp_if_changed $TMPH config.h
7476 touch ffbuild/.config
7477
7478 enabled x86asm && cp_if_changed $TMPASM config.asm
7479
7480 cat > $TMPH <<EOF
7481 /* Generated by ffmpeg configure */
7482 #ifndef AVUTIL_AVCONFIG_H
7483 #define AVUTIL_AVCONFIG_H
7484 EOF
7485
7486 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
7487
7488 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
7489
7490 cp_if_changed $TMPH libavutil/avconfig.h
7491
7492 # full_filter_name_foo=vf_foo
7493 # full_filter_name_bar=asrc_bar
7494 # ...
7495 eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
7496
7497 # generate the lists of enabled components
7498 print_enabled_components(){
7499     file=$1
7500     struct_name=$2
7501     name=$3
7502     shift 3
7503     echo "static const $struct_name * const $name[] = {" > $TMPH
7504     for c in $*; do
7505         if enabled $c; then
7506             case $name in
7507                 filter_list)
7508                     eval c=\$full_filter_name_${c%_filter}
7509                 ;;
7510                 indev_list)
7511                     c=${c%_indev}_demuxer
7512                 ;;
7513                 outdev_list)
7514                     c=${c%_outdev}_muxer
7515                 ;;
7516             esac
7517             printf "    &ff_%s,\n" $c >> $TMPH
7518         fi
7519     done
7520     if [ "$name" = "filter_list" ]; then
7521         for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
7522             printf "    &ff_%s,\n" $c >> $TMPH
7523         done
7524     fi
7525     echo "    NULL };" >> $TMPH
7526     cp_if_changed $TMPH $file
7527 }
7528
7529 print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
7530 print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
7531 print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
7532 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
7533 print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
7534 print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
7535 print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
7536 print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
7537 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
7538
7539 # Settings for pkg-config files
7540
7541 cat > $TMPH <<EOF
7542 # Automatically generated by configure - do not modify!
7543 shared=$shared
7544 build_suffix=$build_suffix
7545 prefix=$prefix
7546 libdir=$libdir
7547 incdir=$incdir
7548 rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
7549 source_path=${source_path}
7550 LIBPREF=${LIBPREF}
7551 LIBSUF=${LIBSUF}
7552 extralibs_avutil="$avutil_extralibs"
7553 extralibs_avcodec="$avcodec_extralibs"
7554 extralibs_avformat="$avformat_extralibs"
7555 extralibs_avdevice="$avdevice_extralibs"
7556 extralibs_avfilter="$avfilter_extralibs"
7557 extralibs_avresample="$avresample_extralibs"
7558 extralibs_postproc="$postproc_extralibs"
7559 extralibs_swscale="$swscale_extralibs"
7560 extralibs_swresample="$swresample_extralibs"
7561 EOF
7562
7563 for lib in $LIBRARY_LIST; do
7564     lib_deps="$(eval echo \$${lib}_deps)"
7565     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
7566 done
7567
7568 cp_if_changed $TMPH ffbuild/config.sh